CN115621678A

CN115621678A - Sampling protective structure, battery and vehicle

Info

Publication number: CN115621678A
Application number: CN202211633953.2A
Authority: CN
Inventors: 陈明文; 林水杉; 黄建; 曹东奎
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-01-17
Anticipated expiration: 2042-12-19
Also published as: CN115621678B

Abstract

The invention discloses a sampling protection structure, a battery and a vehicle, wherein the sampling protection structure comprises a protection shell, the protection shell is provided with a first opening, a second opening and a cavity, the first opening and the second opening are both communicated with the cavity, the first opening is configured to be connected with a switching piece connected with a sampling point of a battery cell, and the second opening is configured to be connected with a sampling circuit. According to the sampling protection structure in the embodiment of the invention, the electric connection between the sampling circuit and the adapter piece can be protected, and the safety of battery sampling is improved.

Description

Sampling protective structure, battery and vehicle

Technical Field

The invention relates to the technical field of batteries, in particular to a sampling protection structure for a battery, the battery and a vehicle.

Background

In the related art, the PCB is soldered to the battery pack so that the PCB can collect signals related to the battery pack. However, in the process of collecting the battery pack signal, the collection of the battery pack signal by the PCB board may be affected by external environmental influences (for example, vibration, impact, dust, etc.).

Disclosure of Invention

The present invention is directed to solving, at least in part, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a sampling protection structure for a battery, which can protect the electrical connection between a sampling circuit and an adaptor, and improve the safety of battery sampling.

Another object of the present invention is to propose a battery comprising the aforementioned sampling protection structure for a battery.

It is a further object of the invention to propose a vehicle comprising the aforesaid sampling protection structure for a battery or the aforesaid battery.

According to the sampling protection structure for the battery in the embodiment of the invention, the sampling protection structure comprises a protection shell, the protection shell is provided with a first opening, a second opening and a cavity, the first opening and the second opening are both communicated with the cavity, the first opening is configured to be accessed by an adapter connected with a sampling point of a battery core, and the second opening is configured to be accessed by a sampling circuit.

According to the sampling protection structure for the battery in the embodiment of the invention, the electric connection between the sampling circuit and the adapter piece can be protected, and the sampling safety of the battery is improved.

In addition, the sampling protection structure for the battery according to the above embodiment of the present invention may further have the following additional technical features:

optionally, the first opening and the second opening are respectively disposed on different sides of the protective shell.

Optionally, the protective shell has a first side and a second side opposite to each other in the first direction, and the first opening is disposed on the first side of the protective shell.

Optionally, the second opening is disposed at a second side of the protective shell.

Optionally, the sampling protection structure further comprises a cover body, the cover body is covered on the second side of the protection shell, and the second opening is formed between the cover body and the protection shell.

Optionally, a notch is formed in the periphery of the second side of the protective shell, and the notch and the cover body are matched to form the second opening.

Optionally, the second opening is provided on a side wall of the protective shell.

Optionally, the protective shell is provided with the second opening on at least one side of a second direction, and the second direction is perpendicular to the first direction.

Optionally, a positioning portion is arranged on the protective shell, and the positioning portion protrudes out of the peripheral surface of the protective shell and is used for positioning the protective shell on the battery.

Optionally, the protective shell has a first side and a second side opposite to each other along a first direction, and the positioning portion is disposed on an outer peripheral surface of the first side of the protective shell.

Optionally, a buckling part is further arranged on the protective shell, the positioning part and the buckling part are oppositely arranged and spaced apart along the first direction, and the positioning part and the buckling part are matched to position the protective shell on the battery.

Optionally, a cover body is arranged on the protective shell and covers the protective shell.

Optionally, the cover body is hinged to the protective shell, a hook is arranged on the cover body, and the hook is used for positioning the cover body on the battery or the protective shell.

Optionally, when the cover body covers the protective shell, the hook is located on the outer side of the cover body, and the hook portion of the hook faces away from the direction of the cover body.

According to the battery in the embodiment of the invention, the battery comprises the electric core group and the sampling protection structure, and the sampling protection structure is arranged on the electric core group.

According to the battery in the embodiment of the invention, the sampling protection structure is applied, so that the electric connection between the sampling circuit and the adapter piece can be protected, and the sampling safety of the battery is improved.

Optionally, the sampling protection structure is arranged on one side of the electric core group along the width direction, the first opening faces to the space in the electric core group, and the second opening faces to the outer side of the electric core group along the thickness direction.

Optionally, the battery cell group includes a first battery cell and a second battery cell, the first battery cell is electrically connected to the second battery cell, and the sampling protection structure is disposed between the first battery cell and the second battery cell.

Optionally, the electric core group has a first end and a second end, and the middle part has a first collection point; the battery also comprises an adapter piece and a sampling circuit, wherein the adapter piece is electrically connected with the first sampling point and extends into the protective shell from the first opening, the sampling circuit is stacked on the electric core group and extends into the protective shell from the second opening and is electrically connected with the adapter piece, and the sampling circuit is used for switching the first sampling point to the first end of the electric core group.

Optionally, the first end of the electric core group is provided with a second sampling point, and the sampling circuit is electrically connected with the second sampling point.

Optionally, the second end of the electric core group is provided with a third sampling point, and the sampling circuit is further configured to switch the third sampling point to the first end of the electric core group.

Optionally, the sampling circuit is laminated on the side surface of the electric core group along the thickness direction.

According to the vehicle in the embodiment of the invention, the vehicle comprises the sampling protection structure; or a battery as in the above.

According to the vehicle in the embodiment of the invention, the sampling protection structure or the battery is applied, so that the electric connection between the sampling circuit and the adapter can be protected, and the safety of battery sampling is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic view of a sampling guard structure (lid closed) in some embodiments of the invention.

Fig. 2 is a schematic view of a sampling guard structure (with the cover open) in some embodiments of the present invention.

Fig. 3 is a cross-sectional view of a sampling guard structure in some embodiments of the invention.

Fig. 4 is a schematic illustration of the installation of a sampling guard structure (including an adapter) in some embodiments of the invention.

Fig. 5 is a schematic view of the electric core assembly according to some embodiments of the present invention.

Fig. 6 is a partial enlarged view a in the embodiment of fig. 5.

Fig. 7 is a schematic view of a battery (first end of the battery) in some embodiments of the invention.

Fig. 8 is a schematic view of a battery (second end of the battery) in some embodiments of the invention.

Fig. 9 is a schematic view of a cell (second end of the cell) in accordance with further embodiments of the present invention.

Fig. 10 is a schematic view of a battery (first end of the battery) in accordance with further embodiments of the present invention.

Reference numerals:

battery 1000, sampling protective structure 100, protective housing 10, first opening 11, second opening 12, cavity 13, location portion 14, buckling part 15, lid 16, trip 17, articulated portion 18, electric core group 200, first end 200a, second end 200b, first electric core group 201, second electric core group 202, first electric core 210, second electric core 220, adaptor 300, sampling circuit 400, second sampling point 600, third sampling point 700, fifth sampling point 900.

Detailed Description

The invention provides a protective structure 100 for a battery 1000, the battery 1000 and a vehicle, which can protect a signal sampling point of the battery 1000 and improve safety.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1 to 4, according to the sampling guard structure 100 for the battery 1000 in the embodiment of the present invention, the sampling guard structure 100 includes a guard shell 10, the guard shell 10 has a first opening 11, a second opening 12 and a cavity 13, both the first opening 11 and the second opening 12 can communicate with the cavity 13, the first opening 11 is configured to be accessed by an adaptor 300 connected to a sampling point of a battery cell, and the second opening 12 is configured to be accessed by a sampling circuit 400. Therefore, the signal sampling points of the battery cells can be protected, the electric connection is prevented from being exposed outside, and the safety of the battery 1000 is improved.

Specifically, the sampling point of electric core can be the utmost point ear of electric core, and adaptor 300 that is connected with the electric core sampling point can insert first opening 11, and sampling circuit 400 can insert second opening 12 to make adaptor 300 can be connected with sampling circuit 400 electricity in protective housing 10, with this, the signal of electric core is gathered to the sampling point of electric core to the accessible, for example: current, voltage, temperature and other parameters to ensure that the cell can work normally.

In addition, the protective shell 10 may be connected to one side of the electrical core having the tab, and the tab, the adaptor 300 and the sampling circuit 400 are electrically connected through the first opening 11 and the second opening 12, so as to acquire a signal of the electrical core. Therefore, according to the sampling protection structure 100 of the battery cell in the embodiment of the present invention, a signal sampling point of the battery cell can be protected, so that an electrical connection is prevented from being leaked outside, and the safety of the battery cell is improved.

As shown in fig. 2 and 4, in some embodiments of the present invention, first opening 11 and second opening 12 are respectively disposed on different sides of shield shell 10. So configured, the arrangement of the sampling circuit 400 may be facilitated.

Specifically, the battery cell may be a dual tab battery cell, and the tabs may be disposed on different sides of the battery cell. The sampling protection structure 100 may be installed at an end portion of a battery cell having a tab, and is connected to the positive tab or the negative tab of the battery cell through the adaptor 300, the adaptor 300 may be inserted into the cavity 13 through the first opening 11, at this time, if the second opening 12 is disposed at the same side as the first opening 11, the sampling circuit 400 cannot be inserted into the second opening 12, and therefore, the second opening 12 may be disposed at different sides of the first opening 11 on the protective shell 10, so as to facilitate the arrangement of the sampling circuit 400, and when the signal of the battery cell is acquired, the sampling protection of the battery cell is implemented.

Further, the protective shell 10 has a first side and a second side opposite to each other in the first direction, the first opening 11 may be disposed on the first side of the protective shell 10, and correspondingly, the second opening 12 may be disposed on the second side of the protective shell 10, or disposed at other positions on the protective shell 10, so as to facilitate the arrangement of the sampling line.

Still further, a second opening 12 may be provided at a second side of the protective housing 10 to facilitate the arrangement of the sampling line. Wherein the second opening 12 may be disposed on the second side of the protective shell 10, in other words, the second opening 12 may be disposed on the periphery of the second side of the protective shell 10; the second opening 12 may also be provided on the second side of the protective shell 10, etc. This is not intended to limit the scope of the invention.

Specifically, the sampling guard structure 100 may be mounted in a position between two cells; the adaptor 300 may be connected to the series connection point and may be connected to the first opening 11, and the sampling circuit 400 may also be connected to the second opening 12, and the adaptor 300 may be electrically connected to the sampling circuit 400 in the protective case 10, so as to collect the signal of the battery 1000 and realize the sampling protection of the battery 1000. In addition, the second opening 12 is disposed on the second side of the protective shell 10, so that the adaptor 300 can be electrically connected to the sampling circuit 400 along the first direction, thereby reducing circuit bending and improving electrical connection stability, and meanwhile, the adaptor 300 can be prevented from being mixed with the sampling battery 1000, which results in circuit disorder.

As shown in fig. 1 to 4, in some embodiments of the present invention, the sampling protection structure 100 further includes a cover 16, the cover 16 may be disposed on the second side of the protection housing 10, and the second opening 12 may be disposed between the cover 16 and the protection housing 10, so as to close the cavity 13 while electrically connecting the adaptor 300 to the sampling circuit 400, so as to ensure the signal collection stability of the battery 1000.

Specifically, under the state that battery 1000 normally operates, lid 16 can seal cavity 13 to the electric connection of protection adaptor 300 and sampling circuit 400 avoids in dust etc. gets into cavity 13, influences battery 1000's signal acquisition, in addition, still can be through opening lid 16, so that stretch into the electric connection of adaptor 300 and sampling circuit 400 of cavity 13, convenient assembly and maintenance, and guarantee battery 1000 signal acquisition's accuracy.

In addition, a second opening 12 may be provided between the cover 16 and the protective shell 10, and the sampling circuit 400 may access the second opening 12 to collect the signal of the battery 1000 when the cover 16 is covered on the protective shell 10.

As shown in fig. 2 and 4, in some embodiments of the present invention, the second side of the protective shell 10 may be provided with a notch at its periphery, and the notch and the cover 16 cooperate to form the second opening 12 to facilitate the arrangement of the sampling circuit 400. Specifically, when the cover 16 opens the cavity 13, the sampling circuit 400 can be inserted into the cavity 13 through the notch. When the cover 16 is covered on the protective shell 10, the notch and the periphery of the cover 16 may form a complete interface, and the sampling circuit 400 may be connected to the protective shell 10 through the second opening 12, so that the sampling circuit 400 is electrically connected to the adaptor 300 to collect signals of the battery 1000.

Of course, the notch may be formed in various ways, for example, the notch may be provided on the periphery of the cover 16, and the second opening 12 may be formed by the matching of the notch and the protective shell. For another example, notches may be provided on both the periphery of the second side of the protective case and the periphery of the cover 16, and the second opening 12 may be formed when the cover 16 is placed on the protective case. This is not intended to limit the scope of the invention.

In other embodiments of the present invention, as shown in fig. 2 and 4, the second opening 12 may be provided on a side wall of the protective shell 10, wherein the protective shell 10 may extend along the first direction, and the second opening 12 is provided on the side wall of the protective shell 10, that is, the second opening 12 is oriented perpendicular to the first direction, which may facilitate the arrangement of the sampling circuit 400. Therefore, the sampling circuit 400 can be connected to the second opening 12 disposed on the sidewall of the protective shell 10, so that the sampling circuit 400 can be electrically connected to the adaptor 300 to collect the signal of the battery 1000, thereby ensuring the normal operation of the battery 1000.

As shown in fig. 2 and 4, in some embodiments of the invention, the protective shell 10 is provided with a second opening 12 on at least one side in a second direction, which is perpendicular to the first direction. The sampling circuit 400 can be conveniently accessed into the second opening 12 to realize the signal acquisition of the battery 1000.

Wherein, the protective shell 10 is provided with a second opening 12 at least at one side in the second direction, for example, the protective shell 10 is provided with a second opening 12 at one side in the second direction; for another example, the protection shell 10 is provided with a second opening 12 on the other side in the second direction; for another example, the protective shell 10 is provided with second openings 12 at both sides in the second direction.

Example 1

Optionally, the protective shell 10 is provided with second openings 12 on both sides in the second direction. To sampling circuit 400 range upon range of in the different sides of electric core, all can be in order to make things convenient for sampling circuit 400 to stretch into protective housing 10, can improve protective housing 10's adaptation scope to satisfy different line modes of walking, and reduce protective housing 10's manufacturing cost.

Example 2

Optionally, the protective shell 10 is provided with a second opening 12 at one side in the second direction. The two batteries 1000 on the opposite sides of the positive and negative ears can be connected in series, the sampling protection structure 100 can be installed on the series connection point, wherein the adaptor 300 can be connected on the series connection point and connected into the first opening 11, and the sampling circuit 400 can be connected into the second opening 12 to be electrically connected with the adaptor 300, so that the signal acquisition of the batteries 1000 is realized.

In addition, it should be noted that, in the present invention, the first opening 11 and the second opening 12 are mainly disposed on different sides of the protective shell 10, but this is not a limitation to the scope of the present invention, and in the present invention, the first opening 11 and the second opening 12 may also be disposed on the same side of the protective shell 10.

As shown in fig. 1 to 4, in some embodiments of the present invention, the protective shell 10 may be provided with a positioning portion 14, the positioning portion 14 may protrude from the outer circumferential surface of the protective shell 10, in other words, the outer circumferential surface of the protective shell 10 extends in a first direction, and the positioning portion 14 may protrude from the outer circumferential surface of the protective shell 10 in a direction perpendicular to the first direction. In addition, a mounting opening may be formed in the battery 1000, so that the sampling protection structure 100 is mounted on the battery 1000, when the sampling protection structure 100 is mounted on the battery 1000, the positioning portion 14 on the protection shell 10 may be used to position the protection shell 10 on the battery 1000, and specifically, the positioning portion 14 may abut against the outer surface of the battery 1000, so as to prevent the protection shell 10 from falling into the battery 1000 through the mounting opening, which may cause a failure of the battery 1000. Therefore, the installation stability of the sampling protection structure 100 and the battery cell can be improved, and the sampling protection structure 100 can play a protection role.

In other embodiments, the positioning portion 14 may be disposed around the second side of the protective shell 10. For example, the protective shell 10 may be provided in a square shell shape, and the positioning portions 14 may be provided on two long sides of the protective shell 10; positioning portions 14 may be provided on both short sides of the shield case 10; it is also possible to provide positioning portions 14 on both long sides and both short sides of the protective shell 10.

For another example, the protective shell 10 may have an oblong shell shape, and the positioning portions 14 may be provided at two straight edges of the protective shell 10; positioning portions 14 may be provided at both arc-shaped sides of the shield case 10; it is also possible to provide positioning portions 14 on both straight sides and both arc-shaped sides of the protective shell 10.

Of course, the positioning parts 14 of the present invention may be provided in other forms, and the number and the positions of the positioning parts 14 may be adjusted according to the different protection shells 10. In other words, the positioning portion 14 may be disposed along the circumferential direction of the second side of the protective casing 10, or a plurality of positioning portions 14 may also be disposed, and a plurality of positioning portions 14 may be disposed at intervals along the circumferential direction of the second side of the protective casing 10, so as to position the protective casing 10 on the battery, and improve the mounting stability of the sampling protection structure 100 and the battery cell.

As shown in fig. 1 to 4, in some embodiments of the present invention, the protective shell 10 has a first side and a second side opposite to each other in the first direction, and the positioning portion 14 is provided on an outer circumferential surface of the second side of the protective shell 10. Specifically, when the protective case 10 is mounted on the battery 1000, since the positioning portion 14 is disposed on the second side of the protective case 10, most of the structure of the protective case 10 can be mounted in the battery 1000 to reduce the structural leakage of the protective case 10, and prevent the protective case 10 from falling off due to collision of the battery 1000. In addition, the first opening 11 can be close to the tab position of the battery 1000 as much as possible, so as to reduce the length of the adaptor 300 and save the cost.

As shown in fig. 1 to fig. 4, in some embodiments of the present invention, a fastening portion 15 may be further disposed on the protective casing 10, the positioning portion 14 and the fastening portion 15 are disposed opposite to each other and spaced apart from each other along the first direction, and the positioning portion 14 and the fastening portion 15 cooperate to position the protective casing 10 on the battery 1000, so as to implement the installation of the protective casing 10.

In the first direction, the locking portion 15 is closer to the battery 1000 than the positioning portion 14.

When the protective case 10 is installed on the battery 1000, the fastening portion 15 can extend into the installation opening of the battery 1000 and abut against the inside of the battery 1000, so that the protective case 10 is prevented from falling off from the battery 1000, and meanwhile, the positioning portion 14 can also abut against the outer surface of the battery 1000, so as to ensure the installation strength between the protective case 10 and the battery 1000, therefore, in the first direction, the positioning portion 14 and the fastening portion 15 are spaced apart by a certain distance, so that the positioning portion 14 and the fastening portion 15 can be in positioning fit on the battery 1000, and the protective case 10 can be installed.

In addition, a wedge-shaped guide surface can be further arranged on the buckling part 15, and the wedge-shaped guide surface is in a rising wedge shape in the direction from the first side to the second side, so that the buckling part 15 can easily extend into the mounting hole and is matched and positioned with the positioning part 14, and the protective shell 10 is mounted on the battery 1000.

As shown in fig. 1 to 4, in some embodiments of the present invention, a cover 16 may be disposed on the protective case 10, the cover 16 is disposed on the protective case 10 and hinged to the protective case 10, and a hook 17 is disposed on the cover 16, and the hook 17 is used to position the cover 16 on the battery 1000 or the protective case 10. Therefore, the mounting strength of the protective case 10 and the battery 1000 can be improved.

The cover 16 is hinged to the protective shell 10, so that the cover 16 can open and close the cavity 13 in a reversible manner, so as to electrically connect the sampling circuit 400 and the adaptor 300 in the cavity 13.

Optionally, the cover 16 is provided with a hook 17, the protective shell 10 may be provided with a matching portion protruding from the outer peripheral surface of the protective shell 10, and when the cover 16 covers the protective shell 10, the hook 17 may match with the matching portion on the protective shell 10 to position the cover 16 on the protective shell 10. In addition, the hook 17 on the cover 16 may also cooperate with the first side hook 17 of the protective shell 10 to position the cover 16 on the protective shell 10, so as to prevent dust and the like from entering from the second opening 12, which may cause unstable electrical connection between the sampling circuit 400 and the adaptor 300.

Optionally, the hook 17 is located on the outer side of the cover 16, and the hook portion of the hook 17 faces away from the cover 16. When the cover body 16 covers the protective shell 10 and is installed on the battery 1000, the hook 17 on the cover body 16 can extend into the installation opening of the battery 1000 and be connected with the battery 1000 in a buckling manner, so that the protective shell 10 is prevented from falling off from the battery 1000, and meanwhile, under the matching of the positioning part 14, the protective shell 10 can be positioned on the battery 1000, so that the installation strength of the protective shell 10 is improved, and the signal acquisition of the battery 1000 is realized.

Alternatively, a hinge portion 18 may be provided on the cover 16, wherein the hinge portion 18 may protrude out of the outer circumferential surface of the protective case 10, so that the hinge portion 18 may be hinged with the positioning portion 14, and the protective case 10 may be positioned on the battery 1000 while the cover 16 is covered on the protective case 10, enabling the mounting of the sampling guard structure 100. In addition, the aforementioned one positioning portion 14 may be provided as the hinge portion 18.

As shown in fig. 1 to 4, in some embodiments of the present invention, a cover 16 may be disposed on the protective shell 10, the cover 16 covers the protective shell 10, and the cavity 13 may be closed by the cover 16, so as to ensure the electrical connection stability between the sampling circuit 400 and the adaptor 300, and ensure the signal acquisition stability of the battery 1000. In addition, the electrical connection between the sampling circuit 400 and the adapter 300 may be checked by opening the cover 16 on the protective shell 10.

As shown in fig. 5 to 10, according to the battery 1000 in the embodiment of the present invention, the battery 1000 includes the electric core pack 200 and the sampling guard structure 100 in the above embodiment, and the sampling guard structure 100 is mounted on the electric core pack 200. Therefore, by applying the sampling guard structure 100, the electrical connection between the sampling circuit 400 and the adaptor 300 can be protected, and the sampling safety of the battery 1000 can be improved.

The battery 1000 may be a double tab battery, a triple tab battery, or the like. Unless otherwise specified, the following description will be made by taking the battery 1000 as a bipolar tab battery and providing tabs on opposite sides of the battery 1000 as an example.

Specifically, the sampling protection structure 100 is installed on the electric core assembly 200, in other words, the protection shell 10 can be installed on the electric core assembly 200, wherein the adaptor 300 can be connected to the sampling point of the electric core assembly 200 and connected to the first opening 11 of the protection shell 10, the sampling circuit 400 can be connected to the second opening 12 of the protection shell 10, and in the cavity 13 of the protection shell 10, the adaptor 300 can be electrically connected to the sampling circuit 400 to collect the signal of the electric core, thereby realizing the monitoring of the working state of the battery 1000, and in addition, the protection shell 10 protects the electrical connection point between the adaptor 300 and the sampling circuit 400, thereby ensuring the accuracy of signal collection of the battery 1000.

As shown in fig. 5 to 10, in some embodiments of the present invention, the sampling guard structure 100 is provided on one side of the electric core pack 200 in the width direction, and the first opening 11 faces the space inside the electric core pack 200, and the second opening 12 faces the outside of the electric core pack 200 in the thickness direction. By this arrangement, the protection of the sampling protection structure 100 for the information collection of the battery 1000 can be facilitated.

Wherein, the width direction is parallel to the width side of the electric core assembly 200, and the thickness direction is parallel to the thickness side of the electric core assembly 200.

In general, a plurality of electric core packs 200 may be arranged side by side in the thickness direction, so that the battery 1000 may be assembled. Therefore, the sampling protection structure 100 can be arranged on one side of the electric core group 200 along the width direction, so as to conveniently lead out the sampling points in the electric core group 200 and facilitate the assembly of the battery 1000.

Specifically, the first opening 11 of the sampling protection structure 100 may face to a space in the battery cell pack 200, so that the first opening 11 may be as close as possible to the sampling point of the battery cell, so that the adaptor 300 may be connected to the first opening 11, the size of the adaptor 300 is reduced, and the cost is saved. In addition, the second opening 12 of the sampling protection structure 100 can face the outer side of the electric core set 200 in the thickness direction, so that the sampling circuit 400 outside the electric core set 200 can be connected to the second opening 12, and the sampling circuit 400 can be electrically connected with the adaptor 300 in the cavity 13, thereby realizing the signal collection of the battery 1000 and monitoring the working state of the battery 1000.

As shown in fig. 5, in some embodiments of the invention, the battery pack 200 includes a first battery cell 210 and a second battery cell 220, the first battery cell 210 and the second battery cell 220 are electrically connected, and the sampling guard structure 100 is disposed between the first battery cell 210 and the second battery cell 220. Therefore, the electrical connection between the sampling circuit 400 and the adaptor 300 can be protected, and the sampling safety of the battery 1000 can be improved.

Alternatively, the first battery cell 210 and the second battery cell 220 may be opposite-side dual-tab battery cells, and a positive tab of the first battery cell 210 is electrically connected to a negative tab of the second battery cell 220. Therefore, the sampling protection structure 100 may be disposed between the first cell 210 and the second cell 220, wherein an electrical connection point of the first cell 210 and the second cell 220 may be connected to the adaptor 300, and the adaptor 300 may be connected to the first opening 11, and at the same time, the sampling circuit 400 may be connected to the second opening 12, so that the sampling circuit 400 and the adaptor 300 may be electrically connected in the cavity 13, so as to ensure stability of signal acquisition of the battery 1000 while acquiring a signal of the battery 1000.

Alternatively, the first battery cell 210 and the second battery cell 220 may be three-electrode cells, one end of the first battery cell 210 is a single-electrode tab, the other end of the first battery cell is a double-electrode tab, and one end of the second battery cell 220 is a single-electrode tab, and the other end of the second battery cell 220 is a double-electrode tab. And the other end of the first cell 210 is electrically connected to the other end of the second cell 220. Therefore, the sampling protection structure 100 may be disposed between the first cell 210 and the second cell 220, wherein an electrical connection point of the first cell 210 and the second cell 220 may be connected to the adaptor 300, and the adaptor 300 may be connected to the first opening 11, and the sampling circuit 400 may be connected to the second opening 12, so that the sampling circuit 400 and the adaptor 300 may be electrically connected in the cavity 13, so as to ensure stability of signal acquisition of the battery 1000 while acquiring a signal of the battery 1000.

As shown in fig. 5, in some embodiments of the present invention, the electric core pack 200 has a first end 200a and a second end 200b, and the middle portion has a first collection point, in addition, the battery 1000 further comprises an adaptor 300 and a sampling circuit 400, the adaptor 300 can be electrically connected with the first sampling point and extend into the protective shell 10 from the first opening 11, the sampling circuit 400 is stacked on the electric core pack 200 and extend into the protective shell 10 from the second opening 12, and the sampling circuit 400 can be electrically connected with the adaptor 300, the sampling circuit 400 is used for transferring the first sampling point to the first end 200a of the electric core pack 200. Therefore, the stability and safety of the signal acquisition of the battery 1000 can be ensured while the signal acquisition of the battery 1000 is carried out.

Specifically, the sampling guard structure 100 may be installed in the middle of the electric core pack 200, wherein the adaptor 300 may be electrically connected to the first sampling point and may extend into the guard casing 10; meanwhile, the sampling circuit 400 can be stacked on the outer side of the cell pack 200 to reduce the unevenness of the outer surface of the cell pack 200, wherein one end of the sampling circuit 400 can extend into the protective shell 10 and is electrically connected with the adaptor 300 in the cavity 13 of the protective shell 10 to collect signals of the battery 1000, and in addition, the protective shell 10 can prevent dust and other garbage from entering to ensure the stability of the electrical connection between the sampling circuit 400 and the adaptor 300. In addition, the first sampling point in the middle of the electric core set 200 can be switched to the first end 200a of the electric core set 200 by the sampling circuit 400.

Further, the first end 200a of the electric core set 200 may be provided with a second sampling point 600, and the sampling circuit 400 may be electrically connected to the second sampling point 600. In addition, the second end 200b of the electric core pack 200 may be provided with a third sampling point 700, and the sampling circuit 400 is further configured to transfer the third sampling point 700 to the first end 200a of the electric core pack 200. Therefore, the electrical connection stability of the adaptor 300 and the sampling circuit 400 can be protected while the signal of the electric core set 200 is acquired.

The battery core group 200 includes a first battery cell 210 and a second battery cell 220, where the first battery cell 210 and the second battery cell 220 are both two battery cells with two tabs, and the tabs are arranged on different sides of the battery cells, so that when the first battery cell 210 is electrically connected to the second battery cell 220, the negative tab of the first battery cell 210 can be electrically connected to the positive tab of the second battery cell 220.

Specifically, the first sampling point may be an electrical connection point of the first cell 210 and the second cell 220, the second sampling point 600 may be a positive tab of the first cell 210, and the third sampling point 700 may be a negative tab of the second cell 220. The first sampling point, the second sampling point 600 and the third sampling point 700 can be concentrated on the first end 200a of the electric core set 200 by the collecting circuit. The collecting circuit can comprise an FPC (flexible printed circuit) and a voltage collecting board, one end of the flexible printed circuit can extend into the protective shell 10 to be electrically connected with the adaptor 300, and the other end of the flexible printed circuit can be connected to the first end 200a of the electric core assembly 200 to transfer a plurality of sampling points to the first end 200a of the electric core assembly 200, and can be electrically connected with the voltage collecting board through a transfer nickel sheet, so that the voltage collecting board can be used for collecting the voltage states of a plurality of electric core assemblies 200; when a plurality of electric core groups 200 set up side by side along the thickness direction, the voltage acquisition board can be installed on the first end 200a of a plurality of electric core groups 200 to be connected with a plurality of sampling points of a plurality of electric core groups 200 electricity respectively, so that gather the voltage signal of a plurality of electric core groups 200, thereby can monitor the working condition of a plurality of electric core groups 200 in battery 1000, in order to guarantee that battery 1000 can normal operating.

As shown in fig. 5 to 10, in some embodiments of the present invention, the sampling circuit 400 is laminated on the side of the electric core pack 200 in the thickness direction. In practical application, the plurality of core segments can be arranged side by side along the thickness direction to form the battery 1000, so that the sampling circuit 400 can be stacked on the side surface of the core pack 200 along the thickness direction, and when the plurality of core packs 200 form the battery 1000, the flexible circuit board can be hidden among the plurality of core packs 200 to improve the sampling safety of the battery 1000.

According to the vehicle in the embodiment of the present invention, the vehicle includes the sampling guard structure 100 in the above embodiment, or the battery 1000 in the above embodiment. Therefore, the vehicle can protect the electrical connection between the sampling circuit 400 and the adaptor 300 through the sampling protection structure 100 or the battery 1000, and the sampling safety of the battery 1000 is improved.

The sampling circuit 400 may include a first sampling circuit 400 and a second sampling circuit 400.

Specifically, the sampling guard structure 100 may be disposed at the middle of the battery cell pack 200, that is, the guard casing 10 may be installed between the first battery cell 210 and the second battery cell 220. And there is a first sampling point between the first cell 210 and the second cell 220, one end of the adaptor 300 can be connected with the first sampling point, the other end of the adaptor 300 can extend into the protective shell 10 from the first opening 11, and at the same time, the first sampling circuit 400 stacked outside the cell pack 200 can extend into the protective shell 10 from the second opening 12, so that the first sampling circuit 400 and the adaptor 300 can be electrically connected in the protective shell 10, and then the first sampling point can be transferred to the first end 200a of the cell pack 200 through the first sampling circuit 400. In addition, a second sampling circuit 400 may be stacked on the outer side of the electric core pack 200, and the second sampling circuit 400 may be electrically connected to a third sampling point 700 of the electric core pack 200 to transfer the third sampling point 700 to the first end 200a of the electric core pack 200. Therefore, the working condition of the battery 1000 can be obtained only by sampling the battery 1000 at the first end 200a of the electric core pack 200, and the sampling of the battery 1000 is protected by the protective shell 10, thereby improving the sampling safety of the battery 1000.

As shown in fig. 7 to 10, in other embodiments of the present invention, the battery 1000 has a first end 200a and a second end 200b, the first end 200a of the battery 1000 is in the same direction as the first end 200a of the first electric core set 201, the second end 200b of the battery 1000 is in the same direction as the second end 200b of the first electric core set 201, the battery 1000 includes a first electric core set 201 and a second electric core set 202, the two electric core sets 200 are stacked in the thickness direction, the first end 200a of the first electric core set 201 is opposite to the second end 200b of the second electric core set 202 in the thickness direction, and the second end 200b of the first electric core set 201 is opposite to the first end 200a of the second electric core set 202 in the thickness direction and electrically connected thereto.

The battery 1000 may be a double-tab battery, and the tabs are respectively disposed on two sides of the battery 1000.

Specifically, a first sampling point may be provided at the middle of the first cell group 201; a second sampling point 600 may be provided at the first end 200a of the first cell group 201, and a third sampling point 700 may be provided at the second end 200b of the first cell group 201; a fourth sampling point may be provided at the middle of the second cell group 202; a fifth sampling point 900 may be provided at the second end 200b of the second electric core set 202. The plurality of sampling circuits 400 are electrically connected with the first sampling point, the second sampling point 600, the third sampling point 700, the fourth sampling point and the fifth sampling point 900 respectively to switch the plurality of sampling points to the first end 200a of the battery 1000, so that the sampling of the battery 1000 is only needed to be performed at the first end 200a of the battery 1000, the working condition of the battery 1000 can be obtained, the sampling of the battery 1000 is protected through the protective shell 10, and the sampling safety of the battery 1000 is improved.

In addition, a plurality of the first electric core groups 201 may be arranged at intervals, and the second electric core groups 202 are arranged at intervals, in other words, the plurality of the first electric core groups 201 and the plurality of the second electric core groups 202 may be alternately arranged in a stack in the thickness direction, and the first electric core groups 201 are electrically connected to the previous second electric core group 202, and the second electric core groups 202 are electrically connected to the previous first electric core group 201, whereby the battery 1000 may be constructed.

In some embodiments of the present invention, the sampling protection structure 100 may transfer the middle electrical connection sampling point to one end of the sampling protection structure through an FPC (i.e. a flexible circuit board), wherein the FPC is glued on the back of the cell at a position of 0% -20% of the upper portion of the cell, in other words, the cell has two opposite sides along the thickness direction, and the FPC can be glued on the side close to the protection shell 10.

In addition, the sampling structure can be used for electrically connecting the middle sampling point and the tail sampling point to one end of the sampling structure through the FPC, wherein the back of the FPC is pasted at 0% -20% of the upper part of the battery cell by glue.

In some specific examples of the present invention, the voltage collecting plate of the cell head is electrically connected to the structure, wherein the electrically connected collecting plate is disposed above the terminal, and the terminal protrudes out of the space of the cell section, so as to save the sampling space.

In the related art, the sampling of the battery core is wasted, five voltage points need to be acquired by one battery core in the conventional scheme, and only four voltage points need to be acquired in the technical scheme of the invention. Specifically, the switching mode is used by utilizing FPC voltage collection, and only one sampling line is used for collecting sampling points at the tail electric connection position. Therefore, the number of sampling points of the battery cell can be reduced, and the cost is saved.

In the invention, the voltage collecting point can be connected to one end of the square shell (the electric core group outer shell) by using the FPC, and the voltage is collected by using the multi-pin PCB pin, so that the safety can be improved, and the structural strength can be improved.

In the related art, the protection of the intermediate sampling has an electrical connection problem (for example, the intermediate sampling is easily affected by dust and the like, so that the electrical connection is unstable), and in the invention, the intermediate sampling point can be protected by using a hinge and a clamping manner, so that the safety can be improved.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A sampling protection structure for a battery comprises a protection shell (10), wherein the protection shell (10) is provided with a first opening (11), a second opening (12) and a cavity (13), the first opening (11) and the second opening (12) are both communicated with the cavity (13), the first opening (11) is configured to be accessed by a connector (300) connected with a sampling point of an electric core, and the second opening (12) is configured to be accessed by a sampling circuit (400).

2. Sampling guard structure for batteries according to claim 1, characterized in that the first opening (11) and the second opening (12) are provided separately on different sides on the guard casing (10).

3. Sampling guard structure for batteries according to claim 2, characterized in that the guard shell (10) has opposite first and second sides in a first direction, the first opening (11) being provided at the first side of the guard shell (10).

4. A sampling guard structure for batteries according to claim 3, characterized in that the second opening (12) is provided at the second side of the guard casing (10).

5. The sampling guard structure for batteries according to claim 4, characterized in that it further comprises a cover (16), said cover (16) being arranged to cover a second side of said guard casing (10), said second opening (12) being arranged between said cover (16) and said guard casing (10).

6. Sampling guard structure for batteries according to claim 5, characterized in that the second side of the guard shell (10) has a notch at its periphery, which notch cooperates with the cover (16) to form the second opening (12).

7. Sampling protection structure for batteries according to claim 3, characterized in that said second opening (12) is provided on the side wall of said protection shell (10).

8. Sampling guard structure for batteries according to any of claims 3-7, characterized in that the guard shell (10) is provided with the second opening (12) on at least one side in a second direction, which is perpendicular to the first direction.

9. The sampling protection structure for the battery according to claim 1, wherein the protection shell (10) is provided with a positioning portion (14), and the positioning portion (14) protrudes out of the outer peripheral surface of the protection shell (10) for positioning the protection shell (10) on the battery.

10. The sampling guard structure for batteries according to claim 9, characterized in that the guard casing (10) has first and second sides opposite in a first direction, and the positioning portion (14) is provided on an outer peripheral surface of the second side of the guard casing (10).

11. The sampling protection structure for the battery according to claim 10, wherein a buckling part (15) is further provided on the protection shell (10), the positioning part (14) and the buckling part (15) are oppositely arranged and spaced apart along the first direction, and the positioning part (14) and the buckling part (15) are matched to position the protection shell (10) on the battery.

12. The sampling protection structure for battery according to claim 1, characterized in that a cover body (16) is arranged on the protection shell (10), and the cover body (16) is arranged on the protection shell (10).

13. The sampling protection structure for battery according to claim 12, characterized in that the cover (16) is hinged with the protection shell (10), a hook (17) is provided on the cover (16), and the hook (17) is used for positioning the cover (16) on the battery or the protection shell (10).

14. The sampling protection structure for battery according to claim 13, characterized in that when the cover body (16) is covered on the protection shell (10), the hook (17) is located at the outer side of the cover body (16), and the hook part of the hook (17) faces away from the cover body (16).

15. A battery, comprising:

a battery cell group (200);

the sampling guard structure for a battery according to any of claims 1-14, which is mounted on the electric core pack (200).

16. The battery according to claim 15, wherein the sampling guard structure is provided on one side of the cell group (200) in the width direction, and the first opening (11) faces the space inside the cell group (200), and the second opening (12) faces the outside of the cell group (200) in the thickness direction.

17. The battery of claim 15, wherein the battery pack (200) comprises a first cell (210) and a second cell (220), the first cell (210) and the second cell (220) being electrically connected, and the sampling guard structure being disposed between the first cell (210) and the second cell (220).

18. The battery according to claim 15, wherein the electric core pack (200) has a first end (200 a) and a second end (200 b), and the middle part has a first sampling point; the battery further includes:

an adapter (300), wherein the adapter (300) is electrically connected with the first sampling point and extends into the protective shell (10) from the first opening (11);

the sampling circuit (400) is stacked on the electric core group (200), extends into the protective shell (10) from the second opening (12) and is electrically connected with the adaptor (300), and the sampling circuit (400) is used for transferring the first sampling point to the first end (200 a) of the electric core group (200).

19. The battery according to claim 18, wherein the first end (200 a) of the electric core group (200) is provided with a second sampling point (600), and the sampling circuit (400) is electrically connected with the second sampling point (600);

and/or the second end (200 b) of the electric core group (200) is provided with a third sampling point (700), and the sampling circuit (400) is also configured to transfer the third sampling point (700) to the first end (200 a) of the electric core group (200);

and/or the sampling circuit (400) is laminated on the side surface of the electric core group (200) along the thickness direction.

20. A vehicle, characterized by comprising a sampling guard structure for a battery according to any one of claims 1-14; or, comprising a battery according to any of claims 15-19.