CN216529174U - Battery device - Google Patents

Abstract

The utility model discloses a battery device, and relates to the technical field of batteries. The second plug-in components are respectively electrically connected with the electromagnetic shielding layer and the shell, so that the electromagnetic shielding layer of the first plug-in components is electrically connected with the shell, and the effectiveness and the reliability of electric connection are improved.

Description

Battery device

Technical Field

The present invention relates to the field of battery technology, and more particularly, to a battery device.

Background

The battery pack may include: the electromagnetic shielding layer can shield the electromagnetic interference of the high-voltage plug-in to other devices when the electromagnetic shielding layer is electrically connected with the shell.

Therefore, how to electrically connect the electromagnetic shielding layer and the housing is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a battery device which is used for realizing the electric connection between an electromagnetic shielding layer and a shell.

An embodiment of the present invention provides a battery device, including: the plug-in connector comprises a shell and a first plug-in arranged on the shell; the first plug-in is provided with an electromagnetic shielding layer;

further comprising: the second plug-in unit is arranged on the shell, and the first plug-in unit and the second plug-in unit are arranged at intervals;

wherein the electromagnetic shielding layer is electrically connected with the case through the second package.

The technical scheme provided by the utility model has the following technical advantages:

according to the battery device provided by the embodiment of the utility model, the second plug-in unit is respectively electrically connected with the electromagnetic shielding layer and the shell, so that the electromagnetic shielding layer of the first plug-in unit is electrically connected with the shell, and the effectiveness and reliability of electrical connection are improved.

Drawings

Fig. 1 is a schematic structural diagram of a battery device according to an embodiment of the present invention;

FIG. 2 is a sectional view taken along the line X1-X2 in FIG. 1;

fig. 3 is a perspective view of a part of a second insert according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of another structure of a portion of a second insert provided in an embodiment of the present invention;

fig. 5 is a schematic view of a state where the second card is not electrically connected to the housing according to the embodiment of the present invention.

10-shell, 20-first plug-in, 21-electromagnetic shielding layer, 21 a-shrapnel, 22-body, 23-connecting part, 24-connecting hole, 30-second plug-in, 30 a-end 1, 31-conductive terminal, 32-protective sleeve, 33-gap, 34-other terminal, 40-conductive piece, 50-second wire, 60-connecting terminal, 61-screw hole, 70-battery module, 80-whole package wire harness, 91-battery management system, 92-power distribution unit, a-side edge and b-adaptor.

Detailed Description

A specific embodiment of a battery device according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An embodiment of the present invention provides a battery device, as shown in fig. 1, which may include: a housing 10, and a first insert 20 provided on the housing 10; the first insert 20 is provided with an electromagnetic shield layer 21;

the battery device further includes: a second insert 30 disposed on the housing 10, the first insert 20 and the second insert 30 being spaced apart;

wherein the electromagnetic shielding layer 21 is electrically connected to the case 10 through the second insert 30.

Therefore, the second plug-in unit is respectively electrically connected with the electromagnetic shielding layer and the shell, so that the electromagnetic shielding layer of the first plug-in unit is electrically connected with the shell, and the effectiveness and the reliability of electric connection are improved.

In addition, due to the arrangement, an anti-corrosion conducting layer does not need to be coated on the surface of the shell, the effective electric connection of the electromagnetic shielding layer and the shell can still be realized, and adverse effects on the electric connection caused by corrosion can be avoided, so that the safety and the reliability of the battery device are improved while the manufacturing process is simplified and the manufacturing cost is reduced.

Alternatively, in the embodiment of the present invention, the electromagnetic shielding layer 21 may be disposed on the surface of the first package 20, as shown in fig. 1; however, the present invention is not limited thereto, and any electromagnetic shielding layer disposed on the first insert is within the scope of the embodiments of the present invention, and the specific location of the electromagnetic shielding layer is not limited thereto.

Optionally, in an embodiment of the present invention, the function of the first plug-in may include: for transmitting an electrical signal, wherein the electrical signal may be a voltage signal or a current signal;

the number of the first inserts may be one (not shown), two (as shown in fig. 1), three (not shown), or the like, and may be specifically set according to factors such as the function of the first inserts, and the like, and is not limited herein.

Optionally, in an embodiment of the present invention, the first insert is a high-voltage insert, and the second insert is a high-voltage interlock insert.

Wherein the high voltage insert may function to transmit a high voltage signal, and the high voltage insert may comprise: the plug-in components of the input end used for transmitting the positive and negative signals and the plug-in components of the output end used for transmitting the positive and negative signals are used, but not limited to the plug-in components, and the electromagnetic interference of the high-voltage plug-in components on other devices in the battery device can be avoided through the arrangement of the electromagnetic shielding layer, so that the reliability and the safety of the battery device are improved.

The functions of the high-pressure interlock insert may include: the high-voltage plug-in connector is used for detecting whether the male end and the female end in the high-voltage plug-in connector are effectively plugged, so that a high-voltage loop is disconnected when the male end and the female end are not effectively plugged, the battery device is prevented from being abnormal, and the safety of the battery device is improved.

So, through utilizing high pressure interlocking plug-in components to realize the electricity of electromagnetic shield layer and casing and being connected, can need not to increase extra structure, only need utilize current structure can, keep original battery device's structure as far as possible, simple structure, the preparation of being convenient for, and the cost of manufacture is lower.

Specifically, in the embodiment of the present invention, when the first insert is a high-voltage insert, as shown in fig. 4 and 5, the first insert includes: the electromagnetic shielding device comprises a cylindrical body 22 and a non-cylindrical connecting part 23 connected with the body 22, wherein an electromagnetic shielding layer 21 is arranged on the outer surface of the body 22;

the shell 10 is provided with a through hole, the body 22 can be inserted into the through hole, the elastic sheet 21a connected with the electromagnetic shielding layer 21 can penetrate through the through hole, and the elastic sheet 21a can be directly contacted with the shell 10 in the through hole, so that interference fit is realized;

the connection portion 23 is provided therein with a connection hole 24, and the connection hole 24 can be electrically connected to other structures.

Specifically, the number of the elastic sheets 21a may be set according to actual needs, and is not limited to that shown in fig. 4 and 5, and is not limited herein.

In this regard, the structure of the high-voltage plug is not limited to that shown in fig. 4 and 5, and may be other structures that can implement the function of the high-voltage plug, and is not limited herein.

Of course, optionally, the first insert may also be: the low-voltage plug-in unit provided with the electromagnetic shielding layer, and the second plug-in unit may be other plug-in units different from the high-voltage interlocking plug-in unit, as long as the electromagnetic shielding layer can be electrically connected with the housing through the second plug-in unit, both belong to the protection scope of the embodiment of the present invention.

Optionally, in the embodiment of the present invention, as shown in fig. 2, the second plug-in unit 30 is provided with a conductive terminal (see the structure indicated by 31 in fig. 3 as well);

the electromagnetic shielding layer 21 is electrically connected to the conductive terminal 31 through a conductive member 40.

Therefore, the electromagnetic shielding layer can be electrically connected with the conductive terminals through the conductive pieces, and further the electromagnetic shielding layer is electrically connected with the second plug-in unit, so that the electromagnetic shielding layer is electrically connected with the shell.

Specifically, the conductive member 40 may be, but is not limited to, a first conductive wire and/or a metal sheet.

Of course, for the specific implementation form of the conductive member, besides the conductive wire and the metal sheet, other manners may also be adopted, as long as the implementation manner that the electromagnetic shielding layer is electrically connected with the conductive terminal through the conductive member is achieved, which all belong to the protection scope of the embodiment of the present invention.

Specifically, in the embodiment of the present invention, when the conductive member is electrically connected to the conductive terminal, the following method may be adopted:

welding the conductive member to the conductive terminal by means of soldering (the soldering position may be within the area shown in the dotted line frame 2 in fig. 2);

or, the conductive terminal and the end of the conductive member may be specially configured, and the conductive member is inserted into the conductive terminal in an insertion manner (the insertion position may also be in an area shown in a dashed line frame 2 in fig. 2);

or, a leading end is provided on the conductive terminal, which may be but not limited to a leading line, and the leading line and the conductive member are welded, pressed or inserted together (at this time, the welding, pressing or inserting position may be in the region shown in the dashed line frame 1 in fig. 2, at this time, the dashed line frame 40 in fig. 2 may indicate the combination of the conductive member and the leading end), so as to achieve the electrical connection between the leading line and the conductive member.

In practical applications, in order to achieve the electrical connection between the conductive member and the conductive terminal, a specific electrical connection manner may be selected according to practical needs, and is not limited herein.

Optionally, in the embodiment of the present invention, the electromagnetic shielding layer and the conductive member are an integrally formed structure.

That is, when the electromagnetic shielding layer is manufactured, the conductive member is manufactured together.

Therefore, the conductive piece and the electromagnetic shielding layer can be guaranteed to have a good electric connection effect, and the subsequent connection process caused by the fact that the conductive piece and the electromagnetic shielding layer are of a non-integrated structure is reduced, so that the manufacturing efficiency of the battery device can be improved, and meanwhile, the reliability of the battery device can also be improved.

In the use process of the battery device, in order to achieve the electromagnetic shielding effect, the electromagnetic shielding layer is usually made of metal, for example, but not limited to, other metals such as copper, and as the use time of the battery device increases, the metal may be oxidized, so that the surface of the electromagnetic shielding layer may be oxidized and corroded to some extent; to illustrate, the rate of this oxidation corrosion is slow.

When the electromagnetic shielding layer and the conductive piece are of an integrally formed structure, even if oxidation corrosion occurs on the surface of the electromagnetic shielding layer, effective electric connection between the electromagnetic shielding layer and the conductive piece can still be ensured, and the oxidation corrosion can not generate great adverse effect on the electric connection effect, so that effective electric connection between the electromagnetic shielding layer and the shell can still be ensured, the effect of the electromagnetic shielding layer is realized, and the safety and the reliability of the battery device are improved.

Of course, the electromagnetic shielding layer and the conductive member may also be non-integrally formed structures, that is, the electromagnetic shielding layer and the conductive member are separately manufactured and then assembled to electrically connect the electromagnetic shielding layer and the conductive member.

So set up, can improve the flexibility of design, carry out nimble preparation based on inside structural layout of battery device and residual space, avoid increasing the preparation degree of difficulty because of the special shape of electromagnetic shield layer, satisfy the needs of different application scenarios.

Alternatively, in an embodiment of the present invention, as shown in fig. 3, the second insert 30 includes: a protective casing 32, wherein the conductive terminal 31 is located in the protective casing 32, and the protective casing 32 has a notch 33;

the conductive member 40 (only a partial structure of the conductive member 40 is shown in fig. 3) is electrically connected to the conductive terminal 31 through the notch 33.

Specifically, the protective sleeve may be a cavity with an opening, the bottom of the protective sleeve may be fixed on the housing, and the bottom surface of the protective sleeve may be parallel to the surface of the housing;

alternatively, the protective sleeve may be a frame fixed on the housing, and the side of the frame is perpendicular to the surface of the housing, as shown in fig. 1, the block filled with sparse black dots in the dotted line frame 30 in fig. 1 may represent the frame.

The protective sleeve is provided with a side edge which is vertical to the surface of the shell, and the notch can be arranged on the side edge (the side edge is shown as a in figure 3) at the moment, so that the conductive piece can penetrate through the notch to enter the protective sleeve, the conductive piece is prevented from entering the protective sleeve along the direction vertical to the surface of the shell, the conductive piece is further prevented from being bent when being electrically connected with the conductive terminal to influence the electrical connection effect, the operation difficulty during the electrical connection can be reduced, and the conductive piece and the conductive terminal are prevented from being separated after the battery device is used for a long time;

simultaneously, so set up the rational utilization that can also realize the space, avoid causing the influence to the setting of other structures on every side.

Specifically, in the embodiment of the present invention, the notch is not limited to the one shown in fig. 3, but may also be implemented in other forms, such as but not limited to providing a through hole (not shown) on a side edge (as shown in a in fig. 3) of the protective sheath, where the conductive member may pass through the through hole to enter the interior of the protective sheath; the notch may be implemented according to actual needs, and is not limited herein.

Alternatively, in the embodiment of the present invention, as shown in fig. 1, the second insert 30 is electrically connected to the housing 10 through a second wire 50.

To illustrate, the second conductive wire 50 may be located within the housing 10, as shown in fig. 1, that is, the second insert 30 may have two ends, one end (e.g., a white filled square within the dashed box 30 in fig. 1, denoted as end 1, and the second insert 30 shown in fig. 3 may be understood as end 1) may be located within the housing 10, the other end (e.g., a sparse black filled square within the dashed box 30 in fig. 1, denoted as end 2) may be located outside the housing 10, and a conductive terminal (not shown in fig. 1) may be located at end 2 and disposed outside the housing 10;

alternatively, the second wire may also be located outside the housing, not shown, i.e.: when the conductive terminal is also positioned outside the shell, the second lead and the conductive terminal are positioned on the same side surface of the shell.

In specific implementation, the position of the second conducting wire may be set according to actual needs, as long as the second conducting wire can realize the electrical connection between the second plug-in and the housing, which is not limited herein.

Optionally, in an embodiment of the present invention, the second lead is clamped or screwed with the housing.

Referring to fig. 4, there is shown a portion of the structure of the second insert inside the housing (i.e., end 1 referred to above, indicated at 30a in fig. 4), wherein three ports (shown within dashed circle 3) are shown, the middle port being the opposite port of the conductive terminal electrically connected to the electromagnetic shield, and the other two ports being the ports for electrical connection to the battery management system, in which case:

one end of the second wire 50 may be electrically connected to the middle port, and the other end may be provided with a connection terminal 60, the effect after connection is as shown in fig. 5, the connection terminal 60 may be clamped with the housing 10, and may also be screwed with the housing 10;

when the connection terminal 60 is clamped with the housing 10, a buckle (not shown in fig. 5) may be provided on the housing 10 to facilitate connection and fixation with the connection terminal 60; alternatively, the housing 10 is provided with a groove (not shown in fig. 5) so that the connection terminal 60 can be clamped into the groove to connect and fix the housing 10 and the connection terminal 60;

when the connection terminal 60 is screwed with the housing 10, a screw hole (not shown in fig. 5) may be provided on the housing 10, and a screw hole (shown as 61 in fig. 5) may also be provided on the connection terminal 60, and the two screw holes are aligned and connected and fixed by a bolt or a screw.

Of course, the electrical connection method of the second conductive wire and the housing is not limited to clamping and screwing, and other connection methods may be adopted, for example, but not limited to welding the connection terminal on the housing, etc., as long as the electrical connection of the second conductive wire and the housing is possible, and the method is not limited herein.

To explain this point, the end portion 1 shown in fig. 4 has three ports, which are corresponding to the conductive terminals 31 and the two other terminals 34 in the second insert shown in fig. 3 (wherein, the structure shown in fig. 3 can also be understood as the end portion 2 mentioned above), so as to facilitate the effective transmission of signals and avoid the occurrence of disorder during signal transmission.

Of course, the number of ports in the end portion 1 and the number of terminals in the end portion 2 are not limited to three, and may be set to other numbers such as 4 (not shown), 5 (not shown), or 6 (not shown), and may be set according to actual needs, and is not limited herein.

Optionally, in an embodiment of the present invention, a joint of the second lead and the housing is provided with an anticorrosive layer.

For example, as shown in fig. 5, when the connection terminal 60 is electrically connected to the case 10, an anticorrosive layer may be provided at the electrical connection point of the connection terminal 60 and the case 10.

That is to say, set up the anticorrosive coating in the hookup location of second wire and casing, so can avoid the junction to take place to corrode, improve the validity that second wire and casing electricity are connected to improve battery device's security and reliability.

Optionally, in an embodiment of the present invention, the housing is made of a metal material.

Wherein the metallic material may include iron.

Of course, the material of the housing is not limited to iron, and other metals, such as but not limited to aluminum, may also be used, and is not limited herein.

In this way, when the housing is made of a metal material, when the second insert (such as, but not limited to, the aforementioned second lead) is in contact with the housing, the second insert can be electrically connected with the housing.

The shell is made of iron, and when the corrosion-resistant layer is arranged at the joint of the shell and the second lead, even if iron is oxidized and corroded, the joint of the second lead and the shell is prevented from being corroded to achieve effective electric connection due to the existence of the corrosion-resistant layer, and in addition, the electromagnetic shielding layer is electrically connected with the shell through the second plug-in piece to achieve effective electric connection between the electromagnetic shielding layer and the second plug-in piece, so that the electromagnetic shielding layer and the shell can be effectively electrically connected, and therefore on the basis of improving the safety and the reliability of the battery device, the manufacturing process of the battery device can be simplified, and the manufacturing cost is reduced.

Optionally, in an embodiment of the present invention, the housing is grounded.

For example, when the battery device is provided with a ground terminal, the case may be electrically connected with the ground terminal.

Of course, the grounding manner is not limited to the above example, and all manners of achieving grounding are within the scope of the embodiments of the present invention.

Therefore, the grounding arrangement of the electromagnetic shielding layer can be realized, so that the function of the electromagnetic shielding layer is realized, and the safety and the reliability of the battery device are improved.

It should be noted that, in fig. 2 to 5, a specific structure is shown by taking the first interposer as a high-voltage interposer as an example, in practical cases, the specific structure of the first interposer is not limited to that shown in fig. 2 to 5, and as long as the specific structure of the first interposer with the electromagnetic shielding layer disposed on the surface belongs to the protection scope of the embodiment of the present invention.

Optionally, in an embodiment of the present invention, when the battery device is a battery pack, as shown in fig. 1, the battery device may further include: each battery module 70 is electrically connected to the battery management system 91 and the power distribution unit 92 through the entire package of the wire harness 80, and the second card 30 is also electrically connected to the battery management system 91 and the power distribution unit 92 through the wire harness (wherein, the two other terminals 34 shown in fig. 3 are electrically connected to the battery management system 91 and the power distribution unit 92 through the wire harness), so that the battery module 70 and the second card 30 can be managed by the power distribution unit 92 and the battery management system 91, through functions such as charging and discharging, thermal runaway, voltage, current, and state of charge.

Of course, in practical cases, the number of battery management systems to be arranged is not limited to one shown in fig. 1, and may be other numbers such as two, and may be arranged according to actual needs, and is not limited herein.

In addition, optionally, the battery management system may be further integrated with the power distribution unit to reduce the occupied space and optimize the structural space inside the battery device, and the battery management system may be specifically configured according to actual needs, and is not limited herein.

Specifically, when the second card 30 is connected to the battery management system 90 through the wire harness, as shown in fig. 5, an adaptor b may be provided in the wire harness, and the second card 30 may be electrically connected to the entire package of wire harness 80 through the adaptor b.

The specific implementation form of the adaptor b may be set according to actual needs, for example, but not limited to, an insertion manner or a clamping manner, and the like, and is not limited herein.

Specifically, the number of the battery modules included in the battery device is not limited to 6 (as shown in fig. 1), and in this case, the number is only 6 as an example, and in an actual situation, the number of the battery modules may be set according to actual needs, and is not limited herein.

Specifically, the battery device may include other structures for realizing the functions of the battery device in addition to the above structures, and is not limited herein.

Of course, the battery device is not limited to the battery pack, and may also be other structures including the first insert, the second insert and the housing, and is not limited herein.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A battery device, comprising: the plug-in connector comprises a shell and a first plug-in arranged on the shell; the first plug-in is provided with an electromagnetic shielding layer;

further comprising: the second plug-in unit is arranged on the shell, and the first plug-in unit and the second plug-in unit are arranged at intervals;

wherein the electromagnetic shield layer is electrically connected to the case through the second card.

2. The battery device of claim 1, wherein the first insert is a high voltage insert and the second insert is a high voltage interlock insert.

3. The battery device of claim 1, wherein the second insert is provided with conductive terminals;

the electromagnetic shielding layer is electrically connected with the conductive terminals through conductive pieces.

4. The battery device of claim 3, wherein the electromagnetic shielding layer and the conductive member are integrally formed.

5. The battery device of claim 3, wherein the second insert comprises: the conductive terminal is positioned in the protective sleeve, and the protective sleeve is provided with a notch;

the conductive piece is electrically connected with the conductive terminal through the notch.

6. The battery device of claim 1, wherein the second insert is electrically connected to the housing by a second wire.

7. The battery device of claim 6, wherein the second lead is snapped or screwed to the housing.

8. The battery device according to claim 6, wherein a joint of the second lead and the case is provided with an anticorrosive layer.

9. The battery device of claim 1, wherein the housing is made of a metallic material.

10. The battery device of any of claims 1-9, wherein the housing is grounded.

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