CN219084314U - Detection box - Google Patents

Abstract

The application provides a detection case, the detection case includes first part, second part and first packing. The first portion forms a first accommodation space having a first opening. The second part is used for closing the first opening and supporting the piece to be detected. The first filling member is accommodated in the first accommodating space, and at least a part of the space, which is not occupied by the first filling member, of the first accommodating space is used for accommodating at least a part of the member to be detected. The to-be-detected piece can be subjected to relevant performance detection in the first accommodating space, the first filling piece is filled in the first accommodating space of the first part, the first filling piece occupies part of the space of the first accommodating space, and the space for accommodating air in the first accommodating space is reduced, so that the time for vacuumizing the detection box can be shortened, and the detection efficiency of the to-be-detected piece relevant performance through the detection box is improved.

Description

Detection box

Technical Field

The application relates to the technical field of detection tools, in particular to a detection box.

Background

Currently, lithium batteries are widely used in the fields of electronic products, vehicles, aerospace and the like. With the increasing complexity of application environment and conditions, higher requirements are put on the use safety performance, energy density, production cost and the like of batteries. For the safety performance of the battery, the battery is required to have better air tightness so as to reduce the risk of battery leakage, thereby ensuring the safety performance of the battery pack.

Judging whether the air tightness of the battery meets the requirement can be achieved through special air tightness detection equipment, the detection efficiency of the air tightness detection equipment is an important influencing factor of the production efficiency of the battery, and therefore, how to improve the detection efficiency of the air tightness detection equipment is a problem to be solved in the technical field of battery production.

Disclosure of Invention

The embodiment of the application provides a detection box to improve the detection efficiency of detecting the correlation performance of waiting to detect the piece through this detection box.

The embodiment of the application provides a detection box, and the detection box includes first part, second part and first packing. The first portion forms a first accommodation space having a first opening. The second part is used for closing the first opening and supporting the piece to be detected. The first filling member is accommodated in the first accommodating space, and at least a part of the space, which is not occupied by the first filling member, of the first accommodating space is used for accommodating at least a part of the member to be detected.

In the above technical scheme, at least a part of the piece to be detected is accommodated in the first accommodating space, the piece to be detected can be subjected to relevant performance detection in the first accommodating space, the first filling piece is filled in the first accommodating space of the first part, the first filling piece occupies part of the space of the first accommodating space, the space for accommodating air in the first accommodating space is reduced, so that the time for vacuumizing the detection box can be shortened, and the detection efficiency of relevant performance of the piece to be detected through the detection box is improved.

In some embodiments of the present application, the detection case further includes a limit structure configured to limit the first filler from exiting the first accommodation space.

In the above technical scheme, the setting of limit structure can restrict first filling piece and break away from first accommodation space for first filling piece can hold in first accommodation space steadily.

In some embodiments of the present application, the spacing structure includes a mounting shaft configured to limit the first filler from exiting the first receiving space in a direction perpendicular to an axial direction of the mounting shaft.

In the technical scheme, the first filling piece is limited to be separated from the first accommodating space along the axial direction of the vertical installation shaft through the installation shaft, and the implementation mode is simple.

In some embodiments of the present application, the mounting shaft is connected to the first portion, the first filler is provided with a receptacle, and the mounting shaft is inserted into the receptacle.

Among the above-mentioned technical scheme, the installation axle inserts in locating the jack of first filling piece, in other words, the periphery of installation axle is located to first filling piece cover, and connected mode is simple, and limit structure and first filling piece cooperation of being convenient for to the convenience breaks away from first accommodation space with first filling piece through limit structure restriction.

In some embodiments of the present application, the outer circumferential surface of the mounting shaft is matched with the hole wall surface of the insertion hole, and the cross section of the outer circumferential surface of the mounting shaft and the cross section of the hole wall surface of the insertion hole are polygonal.

In the above technical scheme, the outer peripheral face of the installation shaft is matched with the hole wall surface of the jack, the cross section of the outer peripheral face of the installation shaft and the cross section of the hole wall surface of the jack are polygonal, the cross section of the outer peripheral face is matched with the polygonal jack, the risk of relative rotation of the installation shaft and the first filling piece can be reduced, and the connection stability of the installation shaft and the first filling piece is improved.

In some embodiments of the present application, one end of the first portion in the first direction forms a first opening, and the mounting shaft extends in the first direction.

Among the above-mentioned technical scheme, the one end of first part along the first direction forms first opening, and the installation axle extends along first direction, then can directly cooperate with the installation axle after first opening gets into first accommodation space along first direction, and convenient installation axle and first filling piece cooperation to the convenience detects the case equipment.

In some embodiments of the present application, the first portion includes an end wall opposite the first opening in the first direction, and the mounting shaft is coupled to the end wall.

In the above technical scheme, the installation axle is connected in the end wall, and the end wall is relative along first direction with first opening, then the installation axle just can be connected with the end wall after getting into the first accommodation space of first part from first opening for installation axle and first part are connected more conveniently.

In some embodiments of the present application, the detection case further comprises a connection base connecting the end wall and the mounting shaft. A portion of the connection seat overlaps the mounting shaft, and another portion of the connection seat surrounds an outer periphery of the mounting shaft, as viewed in a direction from the first opening toward the end wall in the first direction.

In the above technical scheme, observing from the direction that the first opening points to the end wall in the first direction, one part of the connecting seat overlaps with the installation shaft, and the other part of the connecting seat surrounds the periphery of the installation shaft, and then the part of the connecting seat beyond the periphery of the installation shaft can provide installation positions for other structures when other structures need to be newly added in the detection box. And connect installation axle and end wall through such connecting seat, can increase the area of connection between end wall and the installation axle to improve the connection stability of installation axle and first part, and then be favorable to reducing the risk that first filling member breaks away from first accommodation space.

In some embodiments of the present application, the test cassette further comprises an adhesive layer connecting the end wall and the connecting seat.

In the technical scheme, the end wall and the connecting seat are connected through the adhesive layer, so that the connection is convenient, the connection stability is good, and the structure of the end wall is not damaged.

In some embodiments of the present application, the connection seat is provided with a first through hole, the installation shaft is worn to locate the first through hole, the installation shaft is provided with first spacing portion, the connection seat has a second spacing portion, along first direction, the second spacing portion is located the one side that first spacing portion deviates from the end wall, the second spacing portion is configured to support against first spacing portion to restrict the installation shaft and break away from first through hole along the direction that deviates from the end wall.

In the above technical scheme, the second spacing portion offsets with first spacing portion to the restriction installation axle breaks away from the through-hole along the direction that deviates from the end wall, can improve the connection stability of installation axle and connecting seat.

In some embodiments of the present application, the first through hole includes a first hole section and a second hole section, along a first direction, the first hole section is closer to the end wall than the second hole section, a hole wall surface of the first hole section is connected with a hole wall surface of the second hole section through a limiting surface, at least part of the first limiting portion is located in the first hole section, and the limiting surface forms a second limiting portion.

According to the technical scheme, at least part of the first limiting part is positioned in the first hole section and can be propped against the limiting surface so as to limit the mounting shaft to be separated from the through hole along the direction deviating from the end wall, thereby improving the connection stability of the mounting shaft and the connecting seat. At least part of the first limiting part is positioned in the first hole section, and the first limiting part and the connecting seat can share a part of space in the first direction, so that the sizes of the connecting seat and the mounting shaft along the first direction can be reduced.

In some embodiments of the present application, the spacing structure further includes a locking member configured to limit the first filler member from being disengaged from the first receiving space along the axial direction of the mounting shaft.

In the above technical scheme, the locking piece can limit the first filling piece to break away from the first accommodation space along the axial direction of the installation shaft, and the installation shaft can limit the first filling piece to break away from the first accommodation space along the axial direction of the vertical installation shaft, so that the locking piece and the installation shaft respectively limit the first filling piece to break away from the first accommodation space from different directions, and the stability of the first filling piece in the first accommodation space is improved.

In some embodiments of the present application, the outer circumferential surface of the mounting shaft is provided with a third limiting portion and a fourth limiting portion which are arranged at intervals along the axial direction thereof, and a limiting space exists between the third limiting portion and the fourth limiting portion. The first filling piece is provided with a guide space, the guide space extends to the hole wall surface of the jack, and the locking piece is movably arranged in the guide space so as to be inserted into or withdrawn from the limit space, thereby locking or releasing the first filling piece and the mounting shaft.

According to the technical scheme, the locking piece moves in the guide space and is inserted into the limiting space to lock the first filling piece and the mounting shaft, so that the first filling piece can be limited to be separated from the first accommodating space, and the first filling piece and the mounting shaft can be locked to limit the first filling piece to be separated from the mounting shaft. The locking piece moves in the guide space and exits from the limit space to release the first filling piece and the mounting shaft, so that the first filling piece and the mounting shaft can be released from the matching relationship, and the first filling piece can be replaced conveniently.

In some embodiments of the present application, the spacing structure further includes an elastic member configured to drive the locking member to insert into the spacing space.

In the technical scheme, the elastic piece is arranged to facilitate the locking piece to be inserted into the limiting space so as to realize the locking of the mounting shaft and the first filling piece.

In some embodiments of the present application, the elastic member is located within the guide space.

Among the above-mentioned technical scheme, the elastic component is located the direction space, and then elastic component and first filling piece share a part space, can reduce the size of the overall structure that first filling piece and elastic component formed, can also reduce the risk that other structures in elastic component and the first accommodation space of first part interfere each other.

In some embodiments of the present application, the first portion is formed with a first opening at one end in a first direction, and the guide space extends in a second direction, the first direction being perpendicular to the second direction. The first filler has a first surface facing the second portion in the first direction, the first surface being formed with a second through hole communicating with the guide space.

According to the technical scheme, the first opening is formed at one end of the first part along the first direction, the first filling piece is provided with the second through hole communicated with the guide space on the first surface of the second part in the first direction, and the operating piece can enter the guide space from the second through hole so as to conveniently drive the locking piece to move in the guide space through the operating piece, so that the locking piece is inserted into or withdrawn from the limit space.

In some embodiments of the present application, the outer circumferential surface of the locking member is provided with a groove, and the groove at least partially overlaps the second through hole as viewed in the first direction from one end provided with the first opening to the other end.

In the above technical scheme, the outer peripheral surface is provided with the groove, and the groove at least partially overlaps with the second through hole, and the operating member can be inserted into the groove through the second through hole, so that the operating member and the locking member form a matching relationship, and the matching relationship is simple and convenient to realize, so that the driving locking member can move more conveniently in the guide space.

In some embodiments of the present application, the groove is a closed structure extending circumferentially along the retaining member.

Among the above-mentioned technical scheme, the recess is the seal structure that extends along the circumference of retaining member, and the retaining member rotates arbitrary angle around its axis in the direction space, observes from the direction that is equipped with the directional other end of first open-ended one end in first direction, and recess and second through-hole all have at least part to overlap to reduced recess and second through-hole position and not corresponding and result in operating piece can not with recess cooperation risk.

In some embodiments of the present application, two first filling members are disposed in the first accommodating space, the two first filling members are disposed at intervals, the first accommodating space includes a first subspace located between the two first filling members, and the first subspace is used for accommodating at least a portion of the member to be detected.

In the above technical scheme, be provided with two first filling pieces in the first accommodation space, two first filling pieces can occupy the space in the first part as far as possible, further shorten the time to the evacuation of detection case. The first subspace is used for accommodating at least one part of the to-be-detected piece, and then the two first filling pieces can also play a limiting role on the to-be-detected piece along the arrangement direction of the first filling pieces, so that the risk of shaking of the to-be-detected piece in the detection box is relieved, and the stability of the to-be-detected piece in the detection box is improved.

In some embodiments of the present application, a surface of the at least one first filling element facing the first subspace is provided with a limiting groove into which the to-be-detected element is clamped.

In the above technical scheme, the surface of first filling piece towards first subspace is provided with the spacing groove, waits to detect the one end card of piece and go into the spacing groove, alleviates the risk of waiting to detect the piece and rocking in the detection case to be favorable to improving the stability of waiting to detect the piece in the detection case.

In some embodiments of the present application, the second portion forms a second receiving space having a second opening. The detection box further comprises a second filling piece, and at least one part of the second filling piece is arranged in the second accommodating space.

According to the technical scheme, at least one part of the second filling piece is arranged in the second accommodating space, so that the second filling piece occupies the inner space of the second part, the space for accommodating air in the second part is reduced, the time for vacuumizing the detection box is shortened, and the detection efficiency of the relevant performance of the piece to be detected through the detection box is improved.

In some embodiments of the present application, a portion of the second filler extends to the first receiving space.

In the above technical scheme, a part of the second filling piece extends to the first accommodating space, and then the part of the second filling piece extending to the first accommodating space occupies the space of the first accommodating space, so that the space for accommodating air in the first accommodating space is further reduced, the time for vacuumizing the detection box can be shortened, and the detection efficiency of the relevant performance of the piece to be detected through the detection box is further improved.

In some embodiments of the present application, two first filling members are disposed in the first accommodating space, the two first filling members are disposed at intervals, the first accommodating space includes a first subspace located between the two first filling members, and the first subspace is used for accommodating at least a part of the member to be detected; the second filling piece comprises an extension part which is accommodated in the first subspace.

Among the above-mentioned technical scheme, extension not only can occupy the partial space of first subspace in the extension to first subspace, reduces the space that the inner space of first part held air to shorten the time to detecting the case evacuation, can also play limiting displacement to the piece that waits to detect that sets up in first subspace, alleviate the risk of waiting to detect the piece and rocking in detecting the incasement, thereby be favorable to improving the stability of waiting to detect the piece in detecting the incasement.

In some embodiments of the present application, the second filling member includes a plurality of extending portions, the plurality of extending portions are arranged along a direction perpendicular to an arrangement direction of the two first filling members, and the two adjacent extending portions are used for positioning the member to be detected.

In the technical direction, two adjacent extending parts are used for positioning the to-be-detected piece, the two adjacent extending parts and the two first filling pieces are used for limiting the to-be-detected piece together, so that the risk of shaking of the to-be-detected piece in the detection box is further relieved, and the stability of the to-be-detected piece in the detection box is improved.

In some embodiments of the present application, the first portion includes an end wall opposite the first opening in the first direction, with a first gap formed between the first filler and the end wall.

According to the technical scheme, the first gap is formed between the first filling piece and the end wall along the first direction, and the first gap can provide a space for the first filling piece to adjust along the first direction, so that the first filling piece can be accurately installed in the first accommodating space.

In some embodiments of the present application, the first gap has a dimension H in the first direction ₁ Satisfies 0mm < H ₁ ≤1mm。

In the technical scheme, H ₁ Greater than 1mm, the first gap is larger in size along the first direction, the firstA gap can contain more air, which is unfavorable for shortening the vacuumizing time of the first containing space, thus 0mm < H ₁ The size of the first gap is smaller, and the air is contained as little as possible.

In some embodiments of the present application, the first portion is provided with a detection hole, the detection hole being in communication with the first accommodation space.

Among the above-mentioned technical scheme, first part is provided with the detection hole, and evacuating equipment can follow detection hole department to detect the case evacuation, and the detection hole sets up in first part and is connected with first accommodation space for it is more convenient to detect case and evacuating equipment etc. and be connected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a detection box according to some embodiments of the present disclosure;

FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;

FIG. 3 is a cross-sectional view of B-B in FIG. 2;

FIG. 4 is a schematic illustration of an assembled end wall, connection mount and mounting shaft provided in some embodiments of the present application;

FIG. 5 is an exploded view of a mounting shaft and a connecting mount provided in some embodiments of the present application;

FIG. 6 is a view of a first portion of a test cassette, a first filler piece, and a spacing structure provided in some embodiments of the present application, after engagement, directed from a first opening toward an end wall;

FIG. 7 is a cross-sectional view taken along the direction C-C in FIG. 1;

FIG. 8 is a schematic view of a mounting shaft with a spacing space formed therein (the recess being a closed structure extending along the circumferential direction of the mounting shaft) according to further embodiments of the present application;

FIG. 9 is a schematic view of a mounting shaft with a spacing space formed therein (the recess being a non-closed structure extending along the circumferential direction of the mounting shaft) provided in some embodiments of the present application;

FIG. 10 is a schematic view of a mounting shaft with a spacing space formed therein (the recess being a non-closed structure extending along the circumference of the mounting shaft) provided in accordance with further embodiments of the present application;

FIG. 11 is a schematic view of some embodiments of the present application after the locking member and the elastic member are engaged (the groove is a closed structure);

FIG. 12 is a schematic view of a structure of a detection box according to further embodiments of the present disclosure;

FIG. 13 is a cross-sectional view taken along the direction D-D in FIG. 12;

FIG. 14 is a cross-sectional view taken along the direction E-E in FIG. 12;

FIG. 15 is a schematic view of a part to be inspected accommodated in a first subspace according to some embodiments of the present application;

FIG. 16 is a view of a first portion of a test case, a first filler member and a spacing structure according to other embodiments of the present application, shown in a direction from a first opening toward an end wall;

FIG. 17 is a schematic view of a part to be inspected accommodated in a first subspace according to other embodiments of the present application;

FIG. 18 is a schematic view of a second portion provided in some embodiments of the present application;

FIG. 19 is a cross-sectional view of a test cassette provided in accordance with further embodiments of the present application;

Fig. 20 is a cross-sectional view of a test cassette provided in further embodiments of the present application.

Icon: 100-detecting box; 10-a first part; 11-a first accommodation space; 111-a first subspace; 112-a first gap; 113-a second gap; 12-a first opening; 13-end walls; 14-side walls; 20-a second part; 21-a second accommodation space; 211-a second subspace; 22-a second opening; 30-a first filler; 31-jack; 32-a guide space; 33-a first surface; 34-a second through hole; 35-a limit groove; 351—a first limiting wall; 36-a second surface; 40-limiting structure; 41-mounting a shaft; 411-a first limit part; 412-a third limit part; 413-fourth limit parts; 414-limit space; 42-locking piece; 421-grooves; 4211-first groove wall; 4212-a second groove wall; 43-elastic member; 200-a piece to be detected; 50-connecting seats; 51-a first through hole; 511-a first bore section; 512-a second bore section; 513-limit surfaces; 52-a second limiting part; 60-an adhesive layer; 70-a second filler; 71-extension; 80-a detection hole; x-a first direction; y-a second direction; z-third direction.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present application, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is conventionally put in use of the product of the application, or the orientation or positional relationship that is conventionally understood by those skilled in the art, merely for convenience of describing the present application and simplifying the description, and is not indicative or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

The term "plurality" as used herein refers to more than two (including two).

In the present application, the battery cell may include a lithium ion secondary battery, a lithium ion primary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, a magnesium ion battery, or the like, which is not limited by the embodiment of the present application. The battery cells may be cylindrical, flat, rectangular, or otherwise shaped, as well as the embodiments herein are not limited in this regard. The battery cells are generally classified into three types according to the packaging method: the cylindrical battery cell, the square battery cell and the soft package battery cell are not limited thereto.

Reference to a battery in embodiments of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application may include a battery module or a battery pack, or the like. The battery generally includes a case for enclosing one or more battery cells. The case body can prevent liquid or other foreign matters from affecting the charge or discharge of the battery cells.

The battery cell comprises an electrode assembly and electrolyte, wherein the electrode assembly consists of a positive plate, a negative plate and a separation membrane. The battery cell mainly relies on metal ions to move between the positive and negative electrode plates to operate. The positive plate comprises a positive electrode current collector and a positive electrode active material layer, wherein the positive electrode active material layer is coated on the surface of the positive electrode current collector, the positive electrode current collector without the positive electrode active material layer protrudes out of the positive electrode current collector coated with the positive electrode active material layer, and the positive electrode current collector without the positive electrode active material layer is used as a positive electrode lug. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate or the like. The negative electrode sheet comprises a negative electrode current collector and a negative electrode active material layer, wherein the negative electrode active material layer is coated on the surface of the negative electrode current collector, the negative electrode current collector without the negative electrode active material layer protrudes out of the negative electrode current collector coated with the negative electrode active material layer, and the negative electrode current collector without the negative electrode active material layer is used as a negative electrode tab. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon, silicon, or the like. In order to ensure that the high current is passed without fusing, the number of positive electrode lugs is multiple and stacked together, and the number of negative electrode lugs is multiple and stacked together. The material of the separator may be PP (polypropylene) or PE (polyethylene). In addition, the electrode assembly may be a wound structure or a lamination structure, and the embodiment of the present application is not limited thereto.

Currently, the more widely the application of power cells (batteries and/or cells) is in view of the development of market conditions. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, and a plurality of fields such as military equipment, aerospace, and the like.

With the continuous expansion of the application field of the power battery and the continuous expansion of the demand of the market, the reliability requirement of the market on the power battery is also higher and higher. Among them, the airtight performance of the power battery is one of important influencing factors of the reliability of the power battery. Therefore, the device for detecting the air tightness of the power battery also puts higher demands.

And placing the power battery to be detected into a detection box with a closed space, and vacuumizing the detection box through vacuumizing equipment. Detecting whether other gases belonging to the interior of the power battery exist in the box body and whether the concentration of the gases belonging to the interior of the power battery in the detection box reaches a threshold value or not in a period of time after vacuumizing, if the gases belonging to the interior of the power battery exist in the detection box and the concentration of the gases reaches the threshold value, the air tightness detection of the power battery is unqualified, and if the concentration of the gases belonging to the interior of the power battery in the detection box does not reach the threshold value, the air tightness detection of the power battery is qualified. Because the power battery can not occupy the interior space of the detection box completely, the detection box is internally provided with redundant space which accommodates more air, so that the time for vacuumizing the detection box is longer, and the air tightness detection efficiency of the air tightness detection equipment on the power battery is reduced.

Based on the above-mentioned consideration, in order to improve efficiency of air tightness detection of the power battery, the embodiment of the application provides a detection box, which includes a first portion, a second portion, and a first filler. The first portion forms a first accommodation space having a first opening. The second part is used for closing the first opening and supporting the piece to be detected. The first filling member is accommodated in the first accommodating space, and at least a part of the space, which is not occupied by the first filling member, of the first accommodating space is used for accommodating at least a part of the member to be detected.

At least one part of the to-be-detected piece is accommodated in the first accommodating space, the to-be-detected piece can be subjected to relevant performance detection in the first accommodating space, the first filling piece is filled in the first accommodating space of the first part, the first filling piece occupies part of the space of the first accommodating space, the space for accommodating air in the first accommodating space is reduced, the time for vacuumizing the detection box can be shortened, and the detection efficiency of relevant performance of the to-be-detected piece through the detection box is improved.

The detection box disclosed by the application can be used for detecting the air tightness of a battery or a battery monomer, and can also be used for detecting other structures needing to be detected in the air tightness so as to improve the air tightness detection efficiency, or used for detecting other performances of the battery or the battery monomer or other structures.

As shown in fig. 1 and 2, the inspection box 100 includes a first portion 10, a second portion 20, and a first filler 30. The first portion 10 forms a first accommodation space 11 having a first opening 12. The second portion 20 is used to close the first opening 12 and support the member 200 to be inspected. The first filling member 30 is accommodated in the first accommodating space 11, and at least a portion of the space of the first accommodating space 11 not occupied by the first filling member 30 is used for accommodating at least a portion of the member to be inspected 200.

The first opening 12 is an entrance for the member to be inspected 200 to enter the first accommodation space 11. The first portion 10 and the second portion 20 are arranged in the up-down direction. The first opening 12 is facing downwards and the second part 20 is located below the first part 10. The second portion 20 closes the first opening 12 such that the first portion 10 and the second portion 20 together form a space accommodating the member 200 to be inspected. The first portion 10 and the second portion 20 are sealingly connected at the first opening 12 to facilitate a later evacuation of the test chamber 100 and a subsequent testing of a property associated with the part 200 to be tested, such as tightness.

The member to be inspected 200 may be a battery, a battery cell, or other structure.

When the to-be-detected member 200 is accommodated in the space defined by the first portion 10 and the second portion 20, the second portion 20 carries part or all of the gravity of the to-be-detected member 200, so that the second portion 20 supports the to-be-detected member 200. In the case where the first portion 10 and the second portion 20 are arranged along the gravity direction, the second portion 20 carries the entire gravity of the member to be inspected 200, and then the first portion 10 is covered outside the member to be inspected 200. In the case where the arrangement direction of the first portion 10 and the second portion 20 deviates from the gravitational direction by a certain angle, the second portion 20 may bear only a part of the gravitational force of the member 200 to be detected.

The material of the first filling member 30 may be non-metal, such as PE (polyethylene), silicone, foam, etc. Of course, the first filling member 30 may be made of metal or semiconductor. The first filling member 30 may also be made of a material that is not easy to deform, so as to reduce the risk of deformation of the first filling member 30 caused by collision between the first filling member 30 and the to-be-detected member 200 during entering the first accommodating space 11 or after the to-be-detected member 200 is accommodated in the first accommodating space 11.

Along the arrangement direction of the first portion 10 and the second portion 20, the member to be inspected 200 may be only partially accommodated in the first accommodating space 11, or may be entirely accommodated in the first accommodating space 11.

At least a portion of the member to be detected 200 is accommodated in the first accommodating space 11, the member to be detected 200 can perform related performance detection in the first accommodating space 11, and the first filling member 30 occupies part of the space of the first accommodating space 11 by filling the first filling member 30 in the first accommodating space 11 of the first portion 10, so that the space for accommodating air in the first accommodating space 11 is reduced, the time for vacuumizing the detection box 100 can be shortened, and the detection efficiency of the related performance of the member to be detected 200 passing through the detection box 100 can be improved.

In some embodiments, the detection box 100 further includes a limit structure 40, the limit structure 40 being configured to limit the first filler 30 from exiting the first accommodating space 11.

The limit structure 40 can provide resistance to the first filler 30 being disengaged from the first accommodating space 11. The detection box 100 may include one limit structure 40, or may include a plurality of limit structures 40.

The limiting structure 40 can limit the first filling member 30 from being separated from the first accommodating space 11, so that the first filling member 30 can be stably accommodated in the first accommodating space 11.

In other embodiments, the first filler 30 may also be confined within the first receiving space 11 by friction between itself and the wall of the first part 10.

The form of the limiting structure 40 is various, for example, the limiting structure 40 is a buckle structure, a hook structure, etc. As shown in fig. 2 and 3, in some embodiments, the limiting structure 40 includes a mounting shaft 41, and the mounting shaft 41 is configured to limit the first filler 30 from being separated from the first accommodating space 11 in a direction perpendicular to an axial direction of the mounting shaft 41.

The first packing 30 is engaged with the mounting shaft 41, and the mounting shaft 41 can provide resistance to the first packing 30 being separated from the first accommodating space 11 in a direction perpendicular to the axial direction of the mounting shaft 41. The mounting shaft 41 may restrict the first filler 30 from being separated from the first accommodation space 11 in any direction along the axial direction of the vertical mounting shaft 41, or may restrict the first filler 30 from being separated from the first accommodation space 11 in a certain direction along the axial direction of the vertical mounting shaft 41.

Illustratively, in the embodiment in which the mounting shaft 41 has a cylindrical structure, the mounting shaft 41 may restrict the first packing from being separated from the first accommodating space 11 in any radial direction of the mounting shaft 41, and the mounting shaft 41 may also restrict the first packing from being separated from the first accommodating space 11 in a certain radial direction of the mounting shaft 41.

The first packing 30 is restricted from being separated from the first accommodating space 11 in a direction perpendicular to the axial direction of the mounting shaft 41 by the mounting shaft 41, and the implementation is simple.

There are various ways of fitting the mounting shaft 41 and the first filler 30, for example, a part of the outer circumferential surface of the mounting shaft 41 and the wall surface of the first portion 10 together hold the first filler 30 to hold the first filler 30 between the mounting shaft 41 and the wall surface of the first portion 10, thereby realizing that the mounting shaft 41 restricts the first filler 30 from being separated from the first accommodation space 11 in the direction perpendicular to the axial direction of the mounting shaft 41.

As another example, as shown in fig. 2 and 3, in some embodiments, a mounting shaft 41 is connected to the first portion 10, the first filler 30 is provided with a receptacle 31, and the mounting shaft 41 is inserted into the receptacle 31.

The mounting shaft 41 may be fixedly connected to the first portion 10, for example, the mounting shaft 41 and the first portion 10 are welded, adhesively connected, etc. to achieve the fixing connection of the mounting shaft 41 to the first portion 10, so that the connection stability between the mounting shaft 41 and the first portion 10 is better. The mounting shaft 41 may also be detachably connected to the first portion 10, such as by bolting, snap-fitting, etc. the mounting shaft 41 and the first portion 10 to facilitate replacement and maintenance of the mounting shaft 41.

The mounting shaft 41 and the first part 10 may be directly connected, such as by welding the mounting shaft 41 and the first part 10 directly. The mounting shaft 41 and the first part 10 may also be indirectly connected, such as the mounting shaft 41 and the first part 10 being connected by a connection arranged between the mounting shaft 41 and a wall of the first part 10.

The mounting shaft 41 is inserted into the insertion hole 31 of the first filler 30, and the outer peripheral surface of the mounting shaft 41 may be bonded to the wall surface of the insertion hole 31, or a gap may be formed between the outer peripheral surface of the mounting shaft 41 and the wall surface of the insertion hole 31. Fig. 2 and 3 show a case where the outer peripheral surface of the mounting shaft 41 is fitted to the hole wall surface of the insertion hole 31, so as to reduce the risk of the first filler 30 shaking in a direction perpendicular to the axial direction of the mounting shaft 41.

In the embodiment in which the outer peripheral surface of the mounting shaft 41 is fitted to the hole wall surface of the insertion hole 31, the first filler 30 can be restricted from being separated from the mounting shaft 41 in the axial direction of the mounting shaft 41 by increasing the friction between the outer peripheral surface of the mounting shaft 41 and the hole wall surface of the insertion hole 31, depending on the friction between the outer peripheral surface of the mounting shaft 41 and the hole wall surface of the insertion hole 31. There are various ways of increasing the friction between the outer peripheral surface of the mounting shaft 41 and the wall surface of the insertion hole 31, such as coating the outer peripheral surface of the mounting shaft 41 or the wall surface of the insertion hole 31 with a coating capable of increasing friction, or providing the outer peripheral surface of the mounting shaft 41 with a concave-convex structure to increase the roughness of the outer peripheral surface of the mounting shaft 41. The outer peripheral surface of the mounting shaft 41 is a surface of the mounting shaft 41 that is disposed around the axis of the mounting shaft 41.

The both ends of the insertion hole 31 may extend to opposite surfaces of the first filler 30 in the axial direction of the insertion hole 31. Of course, it is also possible that one end of the insertion hole 31 extends to a surface of the first filling member 30 along the axial direction of the insertion hole 31, and the other end of the insertion hole 31 is located in the first filling member 30, that is, along the axial direction of the insertion hole 31, the insertion hole 31 does not penetrate through the first filling member 30.

The mounting shaft 41 is inserted into the insertion hole 31, that is, the first filler 30 is sleeved on the outer circumference of the mounting shaft 41, so that the mounting shaft 41 can limit the first filler 30 from being separated from the first accommodating groove along any direction perpendicular to the axial direction of the mounting shaft 41.

The mounting shaft 41 is inserted into the insertion hole 31 of the first filling member 30, in other words, the first filling member 30 is sleeved on the outer periphery of the mounting shaft 41, so that the connection mode is simple, the limit structure 40 is convenient to cooperate with the first filling member 30, and the first filling member 30 is convenient to be limited to be separated from the first accommodating space 11 through the limit structure 40.

In some embodiments, the outer circumferential surface of the mounting shaft 41 mates with the bore wall surface of the receptacle 31, and the cross-section of the outer circumferential surface of the mounting shaft 41 and the cross-section of the bore wall surface of the receptacle 31 are polygonal.

The cross section of the outer peripheral surface of the mounting shaft 41 is the intersection of the outer peripheral surface of the mounting shaft 41 and a plane perpendicular to the axial direction of the mounting shaft 41. The cross section of the wall surface of the insertion hole 31 is the intersection of the wall surface of the insertion hole 31 and a plane perpendicular to the axial direction of the insertion hole 31.

The outline shape of the cross section of the outer peripheral surface of the mounting shaft 41 is the same as the outline shape of the cross section of the hole wall surface of the insertion hole 31 so that the outer peripheral surface of the mounting shaft 41 can be fitted with the hole wall surface of the insertion hole 31. Illustratively, if the cross section of the outer peripheral surface of the mounting shaft 41 is rectangular, the hole wall surface of the insertion hole 31 is also rectangular, and if the cross section of the outer peripheral surface of the mounting shaft 41 is hexagonal, the hole wall surface of the insertion hole 31 is also hexagonal, and the edge of the outer peripheral surface of the mounting shaft 41 corresponds to the edge of the hole wall surface of the insertion hole 31.

The outer peripheral surface of the installation shaft 41 is matched with the hole wall surface of the jack 31, the cross section of the outer peripheral surface of the installation shaft 41 and the cross section of the hole wall surface of the jack 31 are polygonal, the cross section of the outer peripheral surface is matched with the polygonal jack 31, the risk of relative rotation between the installation shaft 41 and the first filling piece 30 can be reduced, and the connection stability of the installation shaft 41 and the first filling piece 30 is improved.

In other embodiments, the cross-section of the outer peripheral surface of the mounting shaft 41 and the cross-section of the hole wall surface of the insertion hole 31 are both circular, i.e., the mounting shaft 41 has a cylindrical structure and the insertion hole 31 has a circular hole. Of course, one of the cross section of the outer peripheral surface of the mounting shaft 41 and the cross section of the hole wall surface of the insertion hole 31 may be circular, and the other of the cross section of the outer peripheral surface of the mounting shaft 41 and the cross section of the hole wall surface of the insertion hole 31 may be polygonal, for example, the cross section of the outer peripheral surface of the mounting shaft 41 may be hexagonal, and the cross section of the hole wall surface of the insertion hole 31 may be circular.

In some embodiments, one end of the first portion 10 in the first direction X forms a first opening 12, and the mounting shaft 41 extends in the first direction X.

The first direction X may be an up-down direction. The first portion 10 forms a first opening 12 along a first direction X towards an end of the second portion 20. The first direction X may be parallel to the direction of gravity. The first direction X may also be a direction that deviates from the direction of gravity by an angle, such as the first direction X being arranged at an acute angle to the direction of gravity.

The extending direction of the mounting shaft 41 is the axial direction of the mounting shaft 41, i.e., the axial direction of the mounting shaft 41 is parallel to the first direction X. In the embodiment in which the first filler 30 is provided with the insertion hole 31, the insertion of the mounting shaft 41 into the insertion hole 31 can be achieved simultaneously during the passage of the first filler 30 from the first opening 12 into the first accommodation space 11.

Therefore, the first portion 10 has the first opening 12 formed at one end along the first direction X, and the mounting shaft 41 extends along the first direction X, so that the first filling member 30 can be directly engaged with the mounting shaft 41 after entering the first accommodating space 11 from the first opening 12 along the first direction X, so that the mounting shaft 41 and the first filling member 30 can be conveniently engaged, and the assembly of the detection box 100 is facilitated.

In other embodiments, the mounting shaft 41 may also extend along a direction perpendicular to the first direction X, and when the mounting shaft 41 is inserted into the insertion hole 31 of the first filling member 30, the first filling member 30 is suspended from the mounting shaft 41, and the mounting shaft 41 may limit the first filling member 30 from being separated from the first accommodating space 11 along the first direction X.

In some embodiments, as shown in fig. 2, the first portion 10 includes an end wall 13 opposite the first opening 12 along a first direction X, and the mounting shaft 41 is connected to the end wall 13.

The end wall 13 is the portion of the wall of the first portion 10 opposite the first opening 12 in the first direction X. The mounting shaft 41 may be attached to the surface of the end wall 13 facing the first receiving space 11, the mounting shaft 41 being located in the first receiving space 11, thereby enabling the mounting shaft 41 to be attached to the first portion 10. Of course, the end wall 13 may be provided with a mounting hole penetrating the end wall 13 in the first direction X, and a part of the mounting shaft 41 may be inserted into the mounting hole, and the other part may extend from the mounting hole into the first accommodation space 11.

The mounting shaft 41 may be directly connected to the end wall 13, such as by welding the mounting shaft 41 and the end wall 13 directly. The mounting shaft 41 and the end wall 13 may also be indirectly connected, such as the mounting shaft 41 and the end wall 13 being connected by a connection disposed between the mounting shaft 41 and the end wall 13.

The mounting shaft 41 is connected to the end wall 13, and the end wall 13 is opposite to the first opening 12 along the first direction X, so that the mounting shaft 41 can be connected to the end wall 13 after entering the first accommodating space 11 of the first portion 10 from the first opening 12, so that the connection between the mounting shaft 41 and the first portion 10 is more convenient.

With continued reference to fig. 2, in other embodiments, the first portion 10 further includes a side wall 14, the side wall 14 is disposed around the end wall 13, one end of the side wall 14 along the first direction X is connected to the end wall 13, and defines a first accommodating space 11 with the end wall 13, and the other end of the side wall 14 along the first direction X encloses a first opening 12. The mounting shaft 41 may also be connected to the side wall 14. In embodiments where the mounting shaft 41 is coupled to the sidewall 14, the mounting shaft 41 may extend in the first direction X or may extend in other directions.

Referring to fig. 2 and 4 in combination, in some embodiments, the detection box 100 further includes a connection base 50, where the connection base 50 connects the end wall 13 and the mounting shaft 41. A part of the connection holder 50 overlaps the mounting shaft 41 as viewed in the first direction X from the first opening 12 toward the end wall 13, and another part of the connection holder 50 surrounds the outer periphery of the mounting shaft 41.

The connecting seat 50 connects the end wall 13 and the mounting seat so that the end wall 13 and the mounting seat are indirectly connected. The connection holder 50 may have a plate-like structure, and the shape of the connection holder 50 is not limited, for example, the connection holder 50 may be a rectangular plate, a circular plate, or the like.

A portion of the connection holder 50 overlaps the mounting shaft 41, and another portion of the connection holder 50 surrounds the outer circumference of the mounting shaft 41, as viewed in the first direction X from the first opening 12 toward the end wall 13, it being understood that the projection of the mounting shaft 41 onto the end wall 13 is located within the projection of the connection holder 50 onto the end wall 13 in the first direction X.

When a part of the connection base 50 overlaps the mounting shaft 41 and another part of the connection base 50 surrounds the outer circumference of the mounting shaft 41 as viewed in the first direction X from the first opening 12 toward the end wall 13, the part of the connection base 50 that protrudes beyond the outer circumference of the mounting shaft 41 can provide a mounting position for other structures when it is necessary to newly add other structures in the inspection box 100. And by connecting the mounting shaft 41 and the end wall 13 by such a connection seat 50, the connection area between the end wall 13 and the mounting shaft 41 can be increased, thereby improving the connection stability of the mounting shaft 41 and the first portion 10, and further being beneficial to reducing the risk of the first filler 30 being separated from the first accommodating space 11.

In other embodiments, the connection socket 50 completely overlaps the mounting shaft 41, i.e. the connection socket 50 does not have a portion surrounding the outer circumference of the mounting shaft 41, as seen in the first direction X from the first opening 12 towards the end wall 13.

There are various connection modes of the connection base 50 and the end wall 13, such as welding the connection base 50 and the end wall 13, and connecting the connection base 50 and the end wall 13 by bolts and screws. In some embodiments, as shown in fig. 4, the test cassette 100 further includes an adhesive layer 60, the adhesive layer 60 connecting the end wall 13 and the connection mount 50.

The adhesive layer 60 may be a structure formed by solidifying a liquid gel applied between the connection pad 50 and the end wall 13. The adhesive layer 60 may be an adhesive tape that adheres between the connection holder 50 and the end wall 13.

The end wall 13 and the connecting seat 50 are connected through the adhesive layer 60, so that the connection is convenient, the connection stability is good, and the structure of the end wall 13 is not damaged.

There are various connection modes of the connection base 50 and the mounting shaft 41, such as welding connection, adhesive connection, bolt connection, etc. of the connection base 50 and the mounting shaft 41. For another example, as shown in fig. 2, 4 and 5, the connecting seat 50 is provided with a first through hole 51, the mounting shaft 41 is penetrated through the first through hole 51, the mounting shaft 41 is provided with a first limiting portion 411, the connecting seat 50 is provided with a second limiting portion 52, the second limiting portion 52 is located on one side of the first limiting portion 411 away from the end wall 13 along the first direction X, and the second limiting portion 52 is configured to abut against the first limiting portion 411 to limit the mounting shaft 41 from being separated from the first through hole 51 along the direction away from the end wall 13.

Along the first direction X, the first through hole 51 penetrates the connection seat 50. The mounting shaft 41 is inserted through the first through hole 51, and the second limiting portion 52 abuts against the first limiting portion 411, so that the mounting shaft 41 cannot be separated from the mounting seat in a direction away from the end wall 13, and connection between the mounting shaft 41 and the connection seat 50 is achieved.

The second limiting portion 52 abuts against the first limiting portion 411 to limit the mounting shaft 41 from being separated from the through hole in a direction away from the end wall 13, so that connection stability between the mounting shaft 41 and the connection base 50 can be improved.

As shown in fig. 4 and 5, in some embodiments, the first through hole 51 includes a first hole section 511 and a second hole section 512, the first hole section 511 is closer to the end wall 13 than the second hole section 512 along the first direction X, the hole wall surface of the first hole section 511 and the hole wall surface of the second hole section 512 are connected by a limiting surface 513, at least part of the first limiting portion 411 is located in the first hole section 511, and the limiting surface 513 forms the second limiting portion 52.

The cross-sectional area of the first bore section 511 is larger than the cross-sectional area of the second bore section 512. The cross-sectional area of the first hole section 511 is an area surrounded by an intersection line of the hole wall surface of the first hole section 511 and a plane perpendicular to the axial direction of the first through hole 51. The cross-sectional area of the second hole section 512 is an area surrounded by an intersection line of the hole wall surface of the second hole section 512 and a plane perpendicular to the axial direction of the first through hole 51.

The first hole section 511, the second hole section 512 and the limiting surface 513 together form a stepped hole, i.e. the first through hole 51 is a stepped hole. The shape of the first hole section 511 and the second hole section 512 may be not limited, for example, the first hole section 511 and the second hole section 512 may be circular holes, or the cross section of the hole wall surface of the first hole section 511 and the cross section of the hole wall surface of the second hole section 512 may be polygonal. The cross-section of the wall surface of the first hole section 511 and the cross-section of the wall surface of the second hole section 512 may be the same or different.

The first limiting portion 411 is provided protruding from the outer peripheral surface of the mounting shaft 41. The end of the mounting shaft 41 facing the end wall 13 is in the same plane as an end face of the first limiting portion 411 facing away from the limit. Of course, an end of the mounting shaft 41 facing the end wall 13 may not be flush with an end surface of the first limiting portion 411 facing away from the limiting surface 513, for example, an end of the mounting shaft 41 facing the end wall 13 is closer to the end wall 13 than an end surface of the first limiting portion 411 facing away from the limiting surface 513, or an end of the mounting shaft 41 facing the end wall 13 is further from the end wall 13 than an end surface of the first limiting portion 411 facing away from the limiting surface 513. Fig. 4 and 5 show a case where the surface of the mounting shaft 41 facing the end wall 13 and the surface of the first stopper 411 facing the end wall 13 are on the same plane.

The first limiting portion 411 may be a closed structure extending in the circumferential direction of the mounting shaft 41. The first stopper 411 may be a non-closed structure extending in the circumferential direction of the mounting shaft 41.

In an embodiment in which the first limiting portion 411 is a closed structure extending along the circumferential direction of the mounting shaft 41, the shape of the outer peripheral surface of the first limiting portion 411 may be the same as the shape of the hole wall surface of the first hole section 511, for example, the outer peripheral surface of the first limiting portion 411 and the hole wall surface of the first hole section 511 are both cylindrical surfaces, and the cross section of the outer peripheral surface of the first limiting portion 411 and the cross section of the hole wall surface of the first hole section 511 are both polygonal. Of course, in the embodiment in which the first limiting portion 411 is a closed structure extending along the circumferential direction of the mounting shaft 41, the shape of the outer peripheral surface of the first limiting portion 411 may be different from the shape of the hole wall surface of the first hole section 511, for example, the outer peripheral surface of the first limiting portion 411 is a cylindrical surface, and the cross section of the hole wall surface of the first hole section 511 is a polygon.

In an embodiment in which the first limiting portion 411 is a non-closed structure extending in the circumferential direction of the mounting shaft 41, a plurality of first limiting portions 411 may be provided on the mounting shaft 41, the plurality of first limiting portions 411 being arranged at intervals in the circumferential direction of the mounting shaft 41. The plurality of first limiting portions 411 may be arranged at regular intervals or non-regular intervals in the circumferential direction of the mounting shaft 41. The surfaces of the plurality of first limiting portions 411 facing the limiting surface 513 are located in the same plane, so that all the first limiting portions 411 can abut against the limiting surface 513, and therefore the mounting shaft 41 is limited to be separated from the first through hole 51 in a direction away from the end wall 13. Of course, in the embodiment in which the first limiting portions 411 are non-closed structures extending in the circumferential direction of the mounting shaft 41, the number of the first limiting portions 411 may be one.

The first limiting portion 411 may be partially or entirely received in the first hole section 511 along the axial direction of the first through hole 51. In the embodiment in which the first limiting portion 411 is entirely accommodated in the first hole section 511 along the axial direction of the first through hole 51, the surface of the first limiting portion 411 facing away from the limiting surface 513 is farther away from the end wall 13 than the surface of the connecting seat 50 facing the end wall 13, or the surface of the first limiting portion 411 facing away from the limiting surface 513 is located in the same plane as the surface of the connecting seat 50 facing the end wall 13. Fig. 4 shows a case where the surface of the mounting shaft 41 facing the end wall 13, the surface of the first stopper 411 facing the end wall 13, and the surface of the connection seat 50 facing the end wall 13 are on the same plane.

At least part of the first limiting portion 411 is located in the first hole section 511 and can abut against the limiting surface 513 to limit the mounting shaft 41 from being separated from the through hole in a direction away from the end wall 13, so that connection stability of the mounting shaft 41 and the connecting seat 50 is improved. At least part of the first limiting portion 411 is located in the first hole section 511, and a part of the space can be shared by the first limiting portion 411 and the connecting seat 50 in the first direction X, so that the size of the connecting seat 50 and the mounting shaft 41 in the first direction X can be reduced.

In other embodiments, the first through hole 51 may be other forms, for example, the first through hole 51 is a blind hole recessed from a surface of the connection seat 50 facing away from the end wall 13 in a direction approaching the end wall 13, and a portion of the mounting shaft 41 is inserted into the first through hole 51 and connected to the connection seat 50. For another example, the first through hole 51 is a through hole penetrating the connection base 50 along the first direction X, and the first through hole 51 is a uniform cross-section hole, and a portion of the mounting shaft 41 is inserted into the first through hole 51 and connected to the connection base 50.

As shown in fig. 3, 6, and 7, in some embodiments, the limiting structure 40 further includes a locking member 42, and the locking member 42 is configured to limit the first filler member 30 from being separated from the first accommodating space 11 along the axial direction of the mounting shaft 41.

The locking member 42 is used to lock the first packing member 30 and the mounting shaft 41 such that the first packing member 30 cannot be separated from the mounting shaft 41 in the axial direction of the mounting shaft 41, thereby restricting the first packing member 30 from being separated from the first accommodating space 11 in the axial direction of the mounting shaft 41. Illustratively, in an embodiment in which the mounting shaft 41 is inserted into the insertion hole 31 of the first packing 30, the locking member 42 locks the first packing 30 and the mounting shaft 41, the first packing 30 cannot be separated from the mounting shaft 41 in the axial direction of the mounting shaft 41, i.e., the mounting shaft 41 cannot be withdrawn from the insertion hole 31 of the first packing 30, so that the first packing 30 is positioned in the first receiving space 11.

The locking member 42 has various structural forms, for example, the locking member 42 has a hanging buckle structure, the hanging buckle structure comprises a hook and a hanging buckle, the hook is connected to the mounting shaft 41, the hanging buckle is arranged on the first filling member 30, and the hook and the hanging buckle are matched to lock the mounting shaft 41 and the first filling member 30. For example, locking member 42 is a shaft structure.

The locking member 42 can restrict the first packing member 30 from being separated from the first accommodating space 11 in the axial direction of the mounting shaft 41, and the mounting shaft 41 can restrict the first packing member 30 from being separated from the first accommodating space 11 in the direction perpendicular to the axial direction of the mounting shaft 41, and therefore, the locking member 42 and the mounting shaft 41 restrict the first packing member 30 from being separated from the first accommodating space 11 from different directions, respectively, thereby improving the stability of the first packing member 30 in the first accommodating space 11.

In some embodiments, the outer circumferential surface of the mounting shaft 41 is provided with a third limiting portion 412 and a fourth limiting portion 413 which are oppositely arranged at intervals along the axial direction thereof, and a limiting space 414 exists between the third limiting portion 412 and the fourth limiting portion 413. The first packing 30 is provided with a guide space 32, the guide space 32 extends to the wall surface of the insertion hole 31, and a locking member 42 is movably provided in the guide space 32 to be inserted into or withdrawn from the limit space 414, thereby locking or releasing the first packing 30 and the mounting shaft 41.

The third limiting portion 412 and the fourth limiting portion 413 may be formed in various manners, for example, the third limiting portion 412 and the fourth limiting portion 413 may be two protruding portions protruding from the outer circumferential surface of the mounting shaft 41 and arranged at opposite intervals along the axial direction of the mounting shaft 41. As another example, as shown in fig. 8, 9, and 10, the outer peripheral surface of the mounting shaft 41 is provided with a recessed portion recessed from the outer peripheral surface of the mounting shaft 41 in a direction close to the axis of the mounting shaft 41, the recessed portion has two first walls and second walls opposing each other in the axial direction of the mounting shaft 41, and the first walls and the second walls form a third stopper 412 and a fourth stopper 413, respectively, that is, the third stopper 412 and the fourth stopper 413 are formed by forming recessed portions in the outer peripheral surface of the mounting shaft 41.

In the embodiment in which the third and fourth stopper portions 412 and 413 are formed by forming the recess portions in the outer circumferential surface of the mounting shaft 41, the recess portions may be closed structures (shown in fig. 8) extending in the circumferential direction of the mounting shaft 41, even if the mounting shaft 41 rotates within the insertion hole 31 with respect to the first filling member 30, the stopper spaces 414 formed by the third and fourth stopper portions 412 and 413 can be always engaged with the locking member 42 so that the locking member 42 can lock the mounting shaft 41 and the first filling member 30 to restrict the first filling member 30 from being separated from the first accommodation space 11 in the axial direction of the mounting shaft 41. Of course, in the embodiment in which the third limiting portion 412 and the fourth limiting portion 413 are formed by forming the recess portion on the outer peripheral surface of the mounting shaft 41, the recess portion may be a non-closed structure (shown in fig. 9 and 10) extending along the circumferential direction of the mounting shaft 41, and in this embodiment, if the mounting shaft 41 rotates in the insertion hole 31 relative to the first filler 30 so that the positions of the limiting space 414 and the locking member 42 do not correspond, the mounting shaft 41 and the first filler 30 may be relatively rotated so that the positions of the limiting space 414 and the locking member 42 correspond, so that the locking member 42 may be inserted into the limiting space 414 to lock the mounting shaft 41 and the first filler 30. In an embodiment in which the third and fourth stopper portions 412 and 413 are formed by forming the recess portions in the outer circumferential surface of the mounting shaft 41 and the recess portions are non-closed structures extending in the circumferential direction of the mounting shaft 41, the outer circumferential surface of the mounting shaft 41 may be provided with a plurality of recess portions arranged at intervals in the circumferential direction of the mounting shaft 41, so that a plurality of stopper spaces 414 are formed in the circumferential direction of the mounting shaft 41, facilitating positioning of the stopper spaces 414 and the locking pieces 42. In this case, the first filling member 30 may be provided with a plurality of guide spaces 32, the plurality of guide spaces 32 are provided around the outer circumference of the mounting shaft 41, the guide spaces 32 and the limiting space 414 are provided in one-to-one correspondence, and each guide space 32 is provided with a locking member 42. Each locking member 42 can be inserted into the corresponding limiting space 414, and the plurality of locking members 42 can jointly lock the mounting shaft 41 and the first filler 30, so that locking stability can be improved. Fig. 9 shows a case where the recess portion is a circular hole, and the third and fourth stopper portions 412 and 413 are respectively two hole walls of the circular hole opposite to each other in the axial direction of the mounting shaft 41. In fig. 10, the recess is shown as a rectangular groove, and the third stopper 412 and the fourth stopper 413 are respectively two opposite walls of the rectangular groove in the axial direction of the mounting shaft 41.

Retaining member 42 may be a shaft structure. The guide space 32 defines a space for the movement of the locking member 42. The extending direction of the guide space 32 is parallel to the extending direction of the locking member 42. The guide space 32 extends to the wall surface of the insertion hole 31, that is, the guide space 32 is communicated with the insertion hole 31, so that the locking member 42 can enter the insertion hole 31 when moving in the guide space 32 and be inserted into the limit space 414.

The locking member 42 can be inserted into or withdrawn from the limiting space 414 in the guiding space 32, and after the locking member 42 is inserted into the limiting space 414, the third limiting part 412 and the fourth limiting part 413 can respectively abut against the locking member 42, so that the locking member 42 can limit the first filling member 30 to move along the axial direction thereof relative to the mounting shaft 41, thereby limiting the first filling member 30 to be separated from the first accommodating space 11 along the axial direction of the mounting shaft 41; when the locking member 42 is withdrawn from the limiting space 414, the first filling member 30 is unlocked from the mounting shaft 41, and the first filling member 30 can move axially relative to the mounting shaft 41, so that the first filling member 30 can be separated from the mounting shaft 41 and even separated from the first accommodating space 11.

The locking member 42 moves in the guide space 32 and is inserted into the limit space 414 to lock the first packing member 30 and the installation shaft 41, so that not only can the first packing member 30 be restricted from being separated from the first accommodating space 11, but also the first packing member 30 and the installation shaft 41 can be locked to restrict the first packing member 30 from being separated from the installation shaft 41. The locking member 42 moves in the guide space 32 and exits the limiting space 414 to release the first filling member 30 and the mounting shaft 41, so that the first filling member 30 and the mounting shaft 41 can be disengaged from each other, thereby facilitating replacement of the first filling member 30.

Referring to fig. 3, 6 and 7, in some embodiments, the limiting structure 40 further includes an elastic member 43, and the elastic member 43 is configured to drive the locking member 42 to insert into the limiting space 414.

The elastic member 43 is a member capable of elastic deformation. The elastic member 43 may be a spring, rubber, or the like.

One end of the elastic member 43 is connected to the first portion 10 or the first filling member 30, and the other end of the elastic member 43 is connected to the locking member 42. The elastic member 43 and the locking member 42 may be abutted. The elastic member 43 and the locking member 42 may be fixedly coupled or detachably coupled.

In the process of the external force driving the locking member 42 to withdraw from the limiting space 414, the elastic member 43 accumulates elastic force, and after the external force is withdrawn, the elastic force accumulated by the elastic member 43 drives the locking member 42 to insert into the limiting space 414. The elastic member 43 may be stretched or compressed while the elastic member 43 continues the elastic force.

The elastic member 43 is provided to facilitate the insertion of the locking member 42 into the limiting space 414, so as to lock the mounting shaft 41 and the first filler 30.

With continued reference to fig. 2, 6 and 7, in some embodiments, the elastic member 43 is located in the guiding space 32.

The elastic member 43 may be partially or entirely located in the guide space 32. The elastic member 43 is located between one end of the locking member 42 and a wall surface of the guide space 32 in the extending direction of the guide space 32. One end of the elastic member 43 is connected to the first filler 30, and the other end of the elastic member 43 is connected to the locking member 42.

The elastic member 43 is located in the guide space 32, so that the elastic member 43 and the first filling member 30 share a part of space, the size of the integral structure formed by the first filling member 30 and the elastic member 43 can be reduced, and the risk that the elastic member 43 interferes with other structures in the first accommodating space 11 of the first part 10 can be reduced.

In other embodiments, the elastic member 43 may be embedded inside the first filler member 30, but located in other spaces communicating with the guide space 32.

Of course, the elastic member 43 may be located in an area other than the first filler 30 instead of being embedded in the first filler 30.

As shown in fig. 6 and 7, in some embodiments, the first portion 10 is formed with a first opening 12 at one end in a first direction X, and the guide space 32 extends in a second direction Y, the first direction X being perpendicular to the second direction Y. The first packing 30 has a first surface 33 facing the second portion 20 in the first direction X, the first surface 33 being formed with a second through hole 34 communicating with the guide space 32.

The second direction Y may be any direction perpendicular to the first direction X. The shape of the second through hole 34 may be various, such as a circular hole, a bar-shaped hole, etc. for the second through hole 34. When it is desired to drive locking member 42 out of spacing space 414, an operator exerting a force on locking member 42 may act on locking member 42 through second throughbore 34 to drive locking member 42 out of spacing space 414.

The first opening 12 is formed at one end of the first portion 10 in the first direction X, the first filler 30 is formed with a second through hole 34 communicating with the guide space 32 in the first direction X facing the first surface 33 of the second portion 20, and the operating member can enter the guide space 32 from the second through hole 34 so that the locking member 42 is driven to move in the guide space 32 by the operating member, thereby allowing the locking member 42 to be inserted into or withdrawn from the limiting space 414.

With continued reference to fig. 3, 6, 7 and 11, in some embodiments, the outer circumferential surface of the locking member 42 is provided with a groove 421, and the groove 421 at least partially overlaps the second through hole 34 when viewed from one end provided with the first opening 12 to the other end in the first direction X.

In the second direction Y, the recess 421 has a first recess wall 4211 and a second recess wall 4212 opposite to each other, and the operating member can be inserted into the recess 421 through the second through hole 34, and the operating member abuts against the first recess wall 4211 or the second recess wall 4212 and slides in the second through hole 34 to enable the locking member 42 to exit the limiting space 414.

The outer peripheral surface is provided with a groove 421, the groove 421 and the second through hole 34 are at least partially overlapped, and the operating member can be inserted into the groove 421 through the second through hole 34, so that the operating member and the locking member 42 form a matching relationship, the matching relationship is simple and convenient to realize, and the driving locking member 42 can move in the guide space 32 more conveniently.

In some embodiments, as shown in fig. 11, the groove 421 is a closed structure extending circumferentially along the locking member 42.

I.e., groove 421 extends circumferentially of retaining member 42 and is of an end-to-end configuration. Illustratively, the groove 421 is an annular groove extending in the circumferential direction of the locking member 42.

The groove 421 is a closed structure extending along the circumferential direction of the locking member 42, the locking member 42 rotates around its axis by any angle in the guiding space 32, and when viewed from the direction from one end provided with the first opening 12 to the other end in the first direction X, the groove 421 and the second through hole 34 are at least partially overlapped, so that the risk that the positions of the groove 421 and the second through hole 34 do not correspond to each other, and the operating member cannot be matched with the groove 421 is reduced.

In other embodiments, the groove 421 may be a non-closed structure extending along the locking member 42, and in such embodiments, a plurality of grooves 421 may be provided at intervals along the circumferential direction of the mounting shaft 41 on the outer circumferential surface of the mounting shaft 41. Of course, only one groove 421 may be provided.

In other embodiments, the plurality of grooves 421 may be arranged at intervals along the axial direction of the mounting shaft 41 on the outer circumferential surface of the mounting shaft 41.

The detection box 100 may include one limit structure 40, or may include a plurality of limit structures 40. As shown in fig. 12, 13 and 14, the detection box 100 includes a plurality of limiting structures 40, and the plurality of limiting structures 40 are spaced apart to limit the first filling member 30 together so as to limit the first filling member 30 from being separated from the first accommodating space 11. Illustratively, the number of the limiting structures 40 is four, and the four limiting structures 40 are respectively disposed at four corners of the rectangle.

As shown in fig. 6, 15, 16 and 17, in some embodiments, two first filling members 30 are disposed in the first accommodating space 11, the two first filling members 30 are disposed at intervals, the first accommodating space 11 includes a first subspace 111 located between the two first filling members 30, and the first subspace 111 is used for accommodating at least a portion of the member to be detected 200.

The two first filling members 30 may be arranged at intervals in any direction perpendicular to the first direction X, such as the two first filling members 30 being oppositely arranged in the third direction Z. The space between the two first fillers 30 is a first subspace 111. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

Two first filling members 30 are arranged in the first accommodating space 11, and the two first filling members 30 can occupy as much space in the first part 10 as possible, so that the time for vacuumizing the detection box 100 is further shortened. The first subspace 111 is used for accommodating at least a part of the to-be-detected piece 200, and then the two first filling pieces 30 can also play a limiting role on the to-be-detected piece 200 along the arrangement direction of the first filling pieces, so that the risk of shaking of the to-be-detected piece 200 in the detection box 100 is relieved, and the stability of the to-be-detected piece 200 in the detection box 100 is improved.

In other embodiments, the number of first fillers 30 may be one, three, or more than three.

As shown in fig. 6 and 15, in some embodiments, a surface of the at least one first filling member 30 facing the first subspace 111 is provided with a limit groove 35 into which the member to be detected 200 is clamped.

The two first fillers 30 are oppositely arranged along the third direction Z, defining the surface of the first filler 30 facing the first subspace 111 as the second surface 36. The second surfaces 36 of the two first fillers 30 together define a first subspace 111. The limit groove 35 is recessed from the second surface 36 in a direction away from the first subspace 111. The limiting groove 35 extends to two surfaces of the first filling member 30 along the first direction X, that is, the limiting groove 35 penetrates through the first filling member 30 along the first direction X. The limiting groove 35 is provided with two first limiting walls 351 which are opposite along the second direction Y, and after the piece 200 to be detected is clamped into the limiting groove 35, the two first limiting walls 351 limit the piece 200 to be detected in the second direction Y. The distance between the two first limiting walls 351 along the second direction Y may be greater than or equal to the dimension of the member 200 to be detected along the second direction Y. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

The surface of the first filling member 30 facing the first subspace 111 may be provided with one limit groove 35, or may be provided with a plurality of limit grooves 35. In the embodiment in which the surface of the first filler 30 facing the first subspace 111 is provided with the plurality of limit grooves 35, the plurality of limit grooves 35 are arranged at intervals along the second direction Y (as shown in fig. 16 and 17).

The surface of only one first filling member 30 facing the first subspace 111 of the two first filling members 30 may be provided with the limit groove 35, or the surface of both first filling members 30 facing the first subspace 111 may be provided with the limit groove 35. In the embodiment in which the surfaces of the two first filling members 30 facing the first subspace 111 are both provided with the limit grooves 35, and the surfaces of the first filling members 30 facing the first subspace 111 are provided with the plurality of limit grooves 35, the limit grooves 35 on the two first filling members 30 are arranged in a one-to-one correspondence manner, and one limit groove 35 of one first filling member 30 and one limit groove 35 of the other first filling member 30 limit one to-be-detected member 200 together.

The surface of the first filling member 30 facing the first subspace 111 is provided with a limit groove 35, one end of the member to be detected 200 is clamped into the limit groove 35, and the risk of shaking of the member to be detected 200 in the detection box 100 is relieved, so that the stability of the member to be detected 200 in the detection box 100 is improved.

As shown in fig. 13, 14, 18, in some embodiments, the second portion 20 forms a second receiving space 21 having a second opening 22. The inspection box 100 further includes a second packing 70, at least a portion of the second packing 70 being disposed in the second accommodation space 21.

The end of the second portion 20 having the second opening 22 is adapted to interface with the end of the first portion 10 having the first opening 12. A portion of the member to be inspected 200 may be accommodated in the second accommodation space 21.

The material of the second filling member 70 may be non-metal, such as PE (polyethylene), silicone, foam, etc. Of course, the second filling member 70 may be made of metal or semiconductor. The second filling member 70 may also be made of a material that is not easy to deform, so as to reduce the risk of deformation of the second filling member 70 caused by collision between the to-be-detected member 200 and the second filling member 70 during the process of entering the second accommodating space 21 or after the to-be-detected member 200 is accommodated in the second accommodating space 21. The material of the second filler 70 may be the same as or different from the material of the first filler 30.

The portion of the second filling member 70 located in the second receiving space 21 defines a second subspace 211 for receiving the member 200 to be inspected, the second subspace 211 being a portion of the second receiving space 21. The shape of the second subspace 211 may be matched with the shape of the member to be inspected 200, for example, the member to be inspected 200 may be rectangular, the second accommodating space 21 may be rectangular, the member to be inspected 200 may be circular, and the second accommodating space 21 may be circular. The to-be-detected piece 200 can be clamped in the second subspace 211 to improve the stability of the to-be-detected piece 200, so as to alleviate the problem of shaking the to-be-detected piece 200 when the to-be-detected piece is accommodated in the second accommodating space 21 and moving the second portion 20.

The second packing 70 may be entirely accommodated in the second accommodating space 21. The second filling member 70 may be partially accommodated in the second accommodating space 21, and the other portion may extend into the first accommodating space 11.

At least a portion of the second filling member 70 is disposed in the second accommodating space 21, so that the second filling member 70 occupies the inner space of the second portion 20, and reduces the space for accommodating air in the second portion 20, thereby shortening the time for evacuating the inspection box 100 and further improving the efficiency of inspecting the performance of the piece 200 to be inspected passing through the inspection box 100.

In some embodiments, a portion of the second filler 70 extends to the first accommodation space 11.

That is, a part of the second packing 70 is accommodated in the first accommodating space 11 and the other part is accommodated in the second accommodating space 21. The portion of the second filling member 70 accommodated in the first accommodating space 11 and the portion of the second filling member 70 accommodated in the second accommodating space 21 may be integrally formed, or the second filling member 70 may be separately provided and then integrally connected.

A portion of the second filling member 70 extends to the first accommodating space 11, and then a portion of the second filling member 70 extending into the first accommodating space 11 occupies the space of the first accommodating space 11, so that the space of the first accommodating space 11 for accommodating air is further reduced, and thus, the time for evacuating the inspection box 100 can be shortened, and further, the inspection efficiency of the relevant performance of the piece 200 to be inspected through the inspection box 100 can be improved.

In some embodiments, two first filling members 30 are disposed in the first accommodating space 11, the two first filling members 30 are disposed at intervals, the first accommodating space 11 includes a first subspace 111 located between the two first filling members 30, and the first subspace 111 is used for accommodating at least a portion of the member to be detected 200; the second filler 70 includes an extension 71 (shown in fig. 3), and the extension 71 is accommodated in the first subspace 111.

The two first filling members 30 are oppositely arranged at intervals along the third direction Z, and the space between the two first filling members 30 is the first subspace 111 along the third direction Z.

The second filling member 70 includes a body portion and an extension portion 71 connected to each other, the body portion is accommodated in the second accommodating space 21, and a second subspace 211 defined by the second filling member 70 accommodating the member to be inspected 200 is formed in the body portion. The extension 71 extends to the first subspace 111, and the extension 71 and the two first filling members 30 together define at least one space accommodating the member 200 to be inspected.

The extension portion 71 extends into the first subspace 111, so that not only can the partial space of the first subspace 111 be occupied, but also the space for accommodating air in the inner space of the first part 10 is reduced, thereby shortening the time for vacuumizing the detection box 100, but also the limit effect on the to-be-detected piece 200 arranged in the first subspace 111 is achieved, the risk of shaking of the to-be-detected piece 200 in the detection box 100 is relieved, and the stability of the to-be-detected piece 200 in the detection box 100 is improved.

The number of the extension portions 71 may be one or more. In some embodiments, the second filling member 70 includes a plurality of extending portions 71, the plurality of extending portions 71 are arranged along a direction perpendicular to the arrangement direction of the two first filling members 30, and two adjacent extending portions 71 are used for positioning the member to be inspected 200.

The two first fillers 30 are oppositely spaced apart along the third direction Z, and the plurality of extensions 71 are spaced apart along the second direction Y. The two adjacent extending portions 71 are respectively used for limiting two sides of the member to be detected 200 along the second direction Y.

In an embodiment in which the surface of the first filler 30 facing the first subspace 111 is provided with a limit groove 35, a limit groove 35 may be provided between two adjacent extensions 71.

The two adjacent extending portions 71 are used for positioning the to-be-detected piece 200, and the two adjacent extending portions 71 and the two first filling pieces 30 limit the to-be-detected piece 200 together, so that the risk of shaking of the to-be-detected piece 200 in the detection box 100 is further relieved, and the stability of the to-be-detected piece 200 in the detection box 100 is improved.

In some embodiments, along the first direction X, the first portion 10 includes an end wall 13 opposite the first opening 12, with a first gap 112 formed between the first filler 30 and the end wall 13.

A first gap 112 is formed in the first direction X between the surface of the first filler 30 facing the end wall 13 and the surface of the end wall 13 facing the first filler 30, in the area where the first filler 30 and the connection seat 50 do not overlap, as viewed in the first direction X.

A first gap 112 is formed between the first filling member 30 and the end wall 13 along the first direction X, and the first gap 112 can provide a space for the first filling member 30 to adjust along the first direction X, which is beneficial for accurately installing the first filling member 30 in the first accommodating space 11.

As shown in fig. 19, in some embodiments, the first gap 112 has a dimension H along the first direction X ₁ Satisfies 0mm < H ₁ ≤1mm。

H1 may be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, etc.

H ₁ The first gap 112 is larger in the first direction X than 1mm, and the first gap 112 accommodates more air, which is disadvantageous in shortening the time for evacuating the first accommodating space 11, so that 0mm < H ₁ And less than or equal to 1mm, not only can provide a space for the first filling member 30 to adjust along the first direction X, which is beneficial for the first filling member 30 to be accurately installed in the first accommodating space 11, but also can enable the size of the first gap 112 to be smaller and accommodate as little air as possible.

In the region where the first filler 30 and the connection holder 50 overlap, as viewed in the first direction X, a second gap 113 is formed between the surface of the first filler 30 facing the connection holder 50 and the surface of the connection holder 50 facing the first filler 30 in the first direction X, H in fig. 20 ₂ Is the size of the second gap 113. A second gap 113 is formed between the first filling member 30 and the connection seat 50 along the first direction X, and the second gap 113 can provide a space for the first filling member 30 to adjust along the first direction X, so that the first filling member 30 can be accurately installed in the first accommodating space 11.

In some embodiments, the first part 10 is provided with a detection hole 80 (shown in fig. 1), the detection hole 80 communicating with the first accommodation space 11.

The detection aperture 80 may be provided in the end wall 13 of the first portion 10 or in the side wall 14 of the first portion 10. The number of the detection holes 80 may be one or a plurality. In embodiments in which the first portion 10 is provided with a plurality of detection apertures 80, the plurality of detection apertures 80 may be disposed in the end wall 13, in the side wall 14, or in other embodiments in which one portion of the plurality of detection apertures 80 is disposed in the end wall 13 and another portion is disposed in the side wall 14.

The first portion 10 is provided with a detection hole 80, and the vacuum pumping device can be used for vacuumizing the detection box 100 from the detection hole 80, and the detection hole 80 is arranged on the first portion 10 and is connected with the first accommodating space 11, so that the detection box 100 is more convenient to be connected with the vacuum pumping device and the like.

The embodiment of the application provides a detection case 100, and detection case 100 is used for carrying out gas tightness detection to battery monomer. The test cassette 100 includes a first portion 10, a second portion 20, a first filler 30, and a second filler 70. The first portion 10 and the second portion 20 are arranged in the up-down direction, the first portion 10 being located above the second portion 20.

The first portion 10 has a first accommodation space 11, and one end of the first portion 10 in the first direction X forms a first opening 12 of the first accommodation space 11. The first portion 10 comprises an end wall 13 and a side wall 14, the end wall 13 and the first opening 12 being arranged opposite each other in the first direction X. The side wall 14 is disposed around the end wall 13, one end of the side wall 14 is connected to the end wall 13, and the other end of the side wall 14 forms the first opening 12.

The detection case 100 includes two first packing members 30, and both the first packing members 30 are packed in the first accommodation space 11. The two first filling members 30 are oppositely arranged at intervals along the third direction Z, and a first accommodating subspace is formed between the two first filling members 30. A limiting groove 35 for clamping one end of the battery cell is formed on the surface of each first filling member 30 facing the first subspace 111. Or the surface of each first filling member 30 facing the first subspace 111 is formed with a plurality of limit grooves 35 for the one ends of the battery cells to be snapped in, and the plurality of limit grooves 35 are arranged at intervals along the third direction Z. The first direction X, the second direction Y and the third direction Z are perpendicular to each other.

The second portion 20 has a second accommodating space 21, one end of the second portion 20 along the first direction X forms a second opening 22 of the second accommodating space 21, and the second opening 22 is abutted with the first opening 12 such that the second portion 20 covers the first opening 12 of the first portion 10.

The second filling member 70 is filled in the second accommodating space 21, the body portion of the second filling member 70 is accommodated in the second accommodating space 21, and a second subspace 211 accommodating the battery cell is defined in the second accommodating space 21, and the extension portion 71 of the second filling member 70 extends to the first subspace 111. The second filler element 70 comprises an extension 71. Or the second filler 70 includes a plurality of extension portions 71, and the plurality of extension portions 71 are spaced apart along the second direction Y. The projection of a portion of the extension 71 is located within the limit groove 35, as viewed in the third direction Z.

The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (27)

1. A test cassette comprising:

A first portion forming a first accommodation space having a first opening;

a second part for closing the first opening and supporting a member to be inspected; and

and the first filling piece is accommodated in the first accommodating space, and at least one part of the space, which is not occupied by the first filling piece, of the first accommodating space is used for accommodating at least one part of the piece to be detected.

2. The inspection box of claim 1, further comprising a limit structure configured to limit the first filler from exiting the first receiving space.

3. The inspection box of claim 2, wherein the limiting structure includes a mounting shaft configured to limit the first filler from exiting the first receiving space in a direction perpendicular to an axial direction of the mounting shaft.

4. A test tank according to claim 3, wherein the mounting shaft is connected to the first portion, the first filler being provided with a socket, the mounting shaft being inserted into the socket.

5. The inspection box of claim 4, wherein the outer peripheral surface of the mounting shaft mates with the aperture wall surface of the receptacle, and the cross-section of the outer peripheral surface of the mounting shaft and the cross-section of the aperture wall surface of the receptacle are polygonal.

6. The inspection box of claim 4, wherein an end of said first portion in a first direction forms said first opening, said mounting shaft extending in said first direction.

7. The inspection box of claim 4, wherein in a first direction, said first portion includes an end wall opposite said first opening, said mounting shaft being connected to said end wall.

8. The inspection box of claim 7, further comprising a connection seat connecting the end wall and the mounting shaft;

a portion of the connection seat overlaps the mounting shaft, and another portion of the connection seat surrounds an outer periphery of the mounting shaft, as viewed in the first direction from the first opening toward the end wall.

9. The inspection box of claim 8, further comprising an adhesive layer connecting the end wall and the connection mount.

10. The detection box according to claim 8, wherein the connection base is provided with a first through hole, the mounting shaft is arranged through the first through hole, a first limiting portion is arranged on the mounting shaft, the connection base is provided with a second limiting portion, the second limiting portion is located on one side, away from the end wall, of the first limiting portion along the first direction, and the second limiting portion is configured to abut against the first limiting portion to limit the mounting shaft from being separated from the first through hole along the direction away from the end wall.

11. The inspection box of claim 10, wherein the first through hole includes a first hole section and a second hole section, the first hole section being closer to the end wall than the second hole section in the first direction, a wall surface of the first hole section being connected to a wall surface of the second hole section by a limiting surface, at least a portion of the first limiting portion being located in the first hole section, the limiting surface forming the second limiting portion.

12. The inspection box of claim 4, wherein the limit structure further comprises a locking member configured to limit the first filler member from exiting the first receiving space in an axial direction of the mounting shaft.

13. The detection box according to claim 12, wherein a third limit portion and a fourth limit portion are provided on an outer peripheral surface of the mounting shaft at opposite intervals along an axial direction thereof, and a limit space is provided between the third limit portion and the fourth limit portion;

the first filling piece is provided with a guide space, the guide space extends to the hole wall surface of the jack, and the locking piece is movably arranged in the guide space so as to be inserted into or withdrawn from the limit space, thereby locking or releasing the first filling piece and the mounting shaft.

14. The inspection box of claim 13, wherein the spacing structure further comprises a resilient member configured to drive the locking member into the spacing space.

15. The detection case according to claim 14, wherein the elastic member is located in the guide space.

16. The detection box according to claim 14, wherein the first opening is formed at one end of the first portion in a first direction, the guide space extends in a second direction, the first direction being perpendicular to the second direction;

in the first direction, the first filler has a first surface facing the second portion, the first surface being formed with a second through hole communicating with the guide space.

17. The detecting box according to claim 16, wherein an outer peripheral surface of the lock member is provided with a groove, which at least partially overlaps the second through hole, as viewed in the first direction from the one end provided with the first opening toward the other end.

18. The detector box of claim 17, wherein the recess is a closed structure extending circumferentially along the retaining member.

19. The inspection box of claim 1, wherein two first packing members are disposed in the first receiving space, the two first packing members being disposed at intervals, the first receiving space including a first subspace between the two first packing members, the first subspace for receiving at least a portion of the piece to be inspected.

20. The inspection box of claim 19, wherein a surface of at least one first filler facing the first subspace is provided with a limit groove into which the piece to be inspected is snapped.

21. The detection case according to any one of claims 1 to 20, wherein the second portion forms a second accommodation space having a second opening;

the detection box further comprises a second filling piece, and at least one part of the second filling piece is arranged in the second accommodating space.

22. The inspection box of claim 21, wherein a portion of the second filler extends to the first receiving space.

23. The inspection box of claim 22, wherein two first packing members are disposed in the first receiving space, the two first packing members being disposed at intervals, the first receiving space including a first subspace between the two first packing members, the first subspace for receiving at least a portion of the piece to be inspected;

The second filler includes an extension portion that is received in the first subspace.

24. The inspection box of claim 23, wherein the second filler includes a plurality of said extensions arranged in a direction perpendicular to the arrangement direction of the two first fillers, and adjacent two of said extensions are used to position the piece to be inspected.

25. The inspection box of claim 1, wherein in a first direction, the first portion includes an end wall opposite the first opening, a first gap being formed between the first filler and the end wall.

26. The inspection box of claim 25, wherein the first gap has a dimension H in the first direction ₁ Satisfies 0mm < H ₁ ≤1mm。

27. The detection box according to claim 1, wherein the first portion is provided with a detection hole, the detection hole being in communication with the first accommodation space.

Images