CN212587614U - Battery pack and electronic equipment - Google Patents
Battery pack and electronic equipment Download PDFInfo
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- CN212587614U CN212587614U CN202021423023.0U CN202021423023U CN212587614U CN 212587614 U CN212587614 U CN 212587614U CN 202021423023 U CN202021423023 U CN 202021423023U CN 212587614 U CN212587614 U CN 212587614U
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- pole core
- battery pack
- utmost point
- adjusting
- box body
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a battery package and electronic equipment. The battery pack includes: the box body is internally provided with a containing cavity, the box body is provided with at least two first supporting parts and at least two pole core units in the containing cavity, the at least two pole core units are arranged in the containing cavity along a first direction of the box body, an adjusting part is movably arranged between the two oppositely arranged pole core units, and the first supporting parts are arranged on two sides of the adjusting part along a second direction of the box body and are abutted against the adjusting part; in the first direction of box, adjusting part and two that set up relatively the utmost point core unit butt, adjusting part is used for adjusting the assembly pretightning force of utmost point core unit.
Description
Technical Field
The utility model relates to a battery field, more specifically, the utility model relates to a battery package and electronic equipment.
Background
At present, a plurality of single batteries are generally arranged in the battery pack to improve the capacity of the battery pack. A plurality of battery cells arrange in proper order in the box among the prior art, because the battery package is in the vibration state usually in the use, produce the condition such as rock easily between the battery cell for produce the gap easily between the battery cell of adjacent setting, battery package stability is relatively poor and take place the safety problem easily.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery package and electronic equipment to solve the easy gap that forms of the battery cell that sets up in the battery package among the prior art, the relatively poor technical problem of battery package stability.
According to an aspect of the present invention, a battery pack is provided. The battery pack includes:
the box body is internally provided with an accommodating cavity, the box body is provided with at least two first supporting parts in the accommodating cavity,
the pole core units are arranged in the accommodating cavity along a first direction of the box body, an adjusting part is movably arranged between the two oppositely arranged pole core units, and the first supporting parts are arranged on two sides of the adjusting part along a second direction of the box body and are abutted against the adjusting part;
in the first direction of box, adjusting part and two that set up relatively the utmost point core unit butt, adjusting part is used for adjusting the assembly pretightning force of utmost point core unit.
Optionally, the oppositely disposed pole core units have oppositely disposed first and second surfaces;
the adjusting component comprises two first components and a second component, the first components are respectively attached to the first surface and the second surface, and the second component is arranged between the first components;
the second component comprises a plurality of sub-components, and the number of the sub-components is adjusted to adjust the assembling pre-tightening force of the pole core unit.
Optionally, the first member includes a buckling portion bent in a first direction of the case,
the first supporting part comprises a bearing part matched with the buckling part, and the bearing part is clamped with the buckling part.
Optionally, the pole core unit includes pole core assemblies arranged along the first direction of the box, and an elastic member is disposed between adjacent pole core assemblies and connected to opposite surfaces of the adjacent pole core assemblies.
Optionally, the pole core assembly comprises a plurality of pole core groups arranged in sequence, and adjacent pole core groups are electrically connected through a flexible connecting piece;
the flexible connection spare includes along the length direction of utmost point core group or the thickness direction of utmost point core group carries out the buffering portion that crooked extension, buffering portion is used for buffering two adjacent utmost point core groups and is in utmost point core group thickness direction produces the interact force.
Optionally, the electric core assembly further comprises a guard piece, the guard piece is arranged between two adjacent pole core assemblies, and the guard piece is used for covering the flexible connecting piece;
the protection piece is provided with a first end face and a second end face arranged opposite to the first end face, and the first end face and the second end face are respectively abutted with first surfaces opposite to two adjacent pole core groups.
Optionally, the battery pack further comprises a second support part, and the second support part is arranged on the inner wall of the accommodating cavity;
the pole core assembly is connected with a second supporting part through the protection piece, one end of the second supporting part is abutted against the inner wall of the accommodating cavity, and the other end of the second supporting part is abutted against the protection piece.
Optionally, the elastic component is arranged between the oppositely arranged pole core groups along the first direction of the box body.
Optionally, the battery pack further comprises a control module, and the pole core unit is electrically connected with the control module.
According to the utility model discloses another aspect provides an electronic equipment. The electronic equipment comprises an equipment main body and the battery pack, wherein the battery pack is arranged in the equipment main body.
The utility model has the technical effects that:
the utility model provides a battery pack, a plurality of pole core units are arranged in the battery pack, two pole core units which are arranged oppositely are arranged at intervals, and an adjusting part is arranged in the interval area and is used for adjusting the assembling pretightening force of the pole core units; because the battery package is in the vibration state usually in the use, under the battery package is in the condition of vibration state, the assembly pretightning force of utmost point core unit can change, the utility model discloses an adjusting part can adjust the assembly pretightning force between the utmost point core unit, makes the homoenergetic between the utmost point core subassembly that constitutes utmost point core unit compress tightly fixedly, has guaranteed the stability of battery package, has guaranteed utmost point core unit current output stability, has guaranteed battery package structure safety.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic view of the overall structure of the battery pack of the present invention.
Fig. 2 is a schematic view of the internal structure of the battery pack of the present invention.
Fig. 3 is an enlarged view of a structure a in fig. 2 according to the present invention.
Fig. 4 is an enlarged view of the structure B in fig. 2 according to the present invention.
Fig. 5 is an enlarged view of the structure of fig. 2C according to the present invention.
Description of reference numerals:
100-battery pack, 10-case, 11-pole core unit, 12-pole core assembly, 13-pole core group, 14-flexible connector, 15-guard, 16-elastic component, 17-adjusting component, 171-first component, 172-second component, 1711-buckling component, 18-first supporting part, 181-bearing part, 19-second supporting part.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
According to an embodiment of the present invention, a battery pack is provided. Referring to fig. 1 to 5, the battery pack 100 includes:
the box body 10 is provided with a containing cavity formed in the box body 10, and at least two first supporting parts 18 are arranged in the containing cavity of the box body 10;
at least two pole core units 11, wherein the at least two pole core units 11 are arranged in the accommodating cavity along a first direction X of the box body 10, an adjusting part 17 is movably arranged between the two oppositely arranged pole core units 11, and the first supporting parts 18 are arranged on two sides of the adjusting part 17 along a second direction Y of the box body and are abutted against the adjusting part 17;
in the first direction X of the case 10, the adjusting member 17 abuts against the two pole core units 11 that are arranged opposite to each other, and the adjusting member 17 is used for adjusting the assembling preload of the pole core units 11.
Specifically, the box 10 is used for carrying the pole core unit 11, and the box 10 plays a role in protecting the pole core unit 11; compared with the prior art, the pole core unit 11 of the present embodiment is directly integrated in the case body 10, so that the arrangement density of the pole core unit 11 is improved, the overall weight of the battery pack is reduced, the production and manufacturing links of the battery pack are simplified, and the production cost is reduced.
First supporting part 18 adopts the detachable mode to set up in the box 10, two first supporting parts 18 are followed the second direction Y of box 10 sets up adjusting part 17's both sides and with adjusting part 17 butt, first supporting part 18 carries on spacingly to adjusting part 17, and adjusting part 17 can be retrained to first supporting part 18 promptly and the position of holding the intracavity is avoided adjusting part 17 to vibrate or rock the in-process and the offset appears, prevents that adjusting part 17 can not compress tightly the condition to utmost point core unit 11.
The utility model discloses be provided with a plurality of utmost point core units in the battery package, two utmost point core units that set up relatively set up the interval and set up the regulating part in the interval region, the regulating part is used for adjusting the assembly pretightning force between the utmost point core unit; because the battery package is in the vibration state usually in the use, under the condition that the battery package is in the vibration state, the assembly pretightning force between the utmost point core unit can change (wherein "assembly pretightning force" is defined as: the pressing force between the parts that constitute the utmost point core unit, etc.), the utility model discloses an adjusting part can adjust the assembly pretightning force between the utmost point core unit, makes the abundant compressing tightly of homoenergetic between the utmost point core subassembly that constitutes the utmost point core unit fix, has guaranteed the stability of battery package, has guaranteed utmost point core unit current output stability, has guaranteed battery package structure safety.
Alternatively, as shown in fig. 4, the oppositely disposed pole core unit 11 has a first surface and a second surface which are oppositely disposed;
the adjusting member 17 comprises two first members 171 and a second member 172, the first members 171 are respectively attached to the first surface and the second surface, and the second member 172 is arranged between the first members 171;
the second member 172 includes a plurality of sub-members, and the number of the plurality of sub-members is adjusted to adjust the fitting preload of the pole core unit 11.
Specifically, the first member 171 is attached to the first surface and the second surface, the second member 172 is disposed between the first members 171, and the second member 172 presses the first members 171 to adjust the assembling preload of the pole core unit 11, so that the pole core unit 11 can be sufficiently pressed.
In this example, the first member 171 is attached to the first surface and the second surface, respectively, and prevents the second member 172 from directly acting on the pole core unit 11, thereby protecting the sealing film covering the outside of the pole core unit 11.
The second component 172 is made of aluminum sheets, hard plastic sheets, steel sheets and the like, and the assembling pretightening force of the pole core unit 11 can be adjusted by increasing or decreasing the number of the second components 172 in the embodiment; specifically, after the battery pack is operated for a period of time, since the battery pack is often in a vibration and impact state during operation, the assembling pretightening force between the pole core assemblies 12 constituting the pole core unit 11 becomes small, and the adjacent pole core assemblies 12 cannot be sufficiently pressed and fixed, so that the assembling pretightening force between the adjacent pole core assemblies 12 needs to be adjusted by increasing the number of the second components; the assembling pretightening force between the pole core assemblies 12 is adjusted in time by changing the number of the second parts, so that the pole core assemblies 12 can be sufficiently compressed, and the safety of the battery pack is ensured.
Alternatively, a plurality of sets of second members 172 may be provided between the first members 171, for example, as shown with reference to fig. 4, 3 sets of the second members being provided at the first members. Optionally, the second member is disposed in a direction different from the first member, the second member is disposed in the first direction X of the box, that is, the acting force applied by the second member to the first member and the pole core unit is along the first direction of the box, and the acting force applied by the second member to the pole core unit does not generate a component force in other directions, so as to ensure that the pole core unit is in a compressed state.
Alternatively, as shown in fig. 4, the first member 171 includes a buckling portion 1711 bent in the first direction X of the case,
the first supporting portion 18 includes a bearing portion 181 matched with the buckling portion 1711, and the bearing portion 181 is clamped with the buckling portion 1711. This example improves the strength of connection of the first member to the first support portion.
Alternatively, as shown in fig. 2 to 3, the pole core unit 11 includes pole core assemblies 12 arranged along the first direction X of the case 10, and an elastic member 16 is disposed between adjacent pole core assemblies 12, and the elastic member 16 is connected to opposite surfaces of adjacent pole core assemblies 12.
In particular, the elastic member 16 is disposed between oppositely disposed surfaces of adjacent pole piece assemblies 12, and the elastic member 16 is typically an elastic material, such as foam or the like.
The surface of the elastic component 16 is coated with an adhesive to bond the adjacent pole core assemblies 12 together, so as to reduce the relative displacement of each pole core assembly under different working conditions (namely the relative displacement of the pole core assemblies along the first direction X of the box), and prevent the damage of the sealing film on the outer surface of the pole core assembly 12 caused by the mutual contact friction of the pole core assemblies 12.
On the other hand, in this example, taking a lithium ion battery pack as an example, during charging of the pole core assembly 12, lithium ions are extracted from the positive electrode and inserted into the negative electrode, which causes the negative electrode layer spacing to increase and expand, and since the elastic member 16 has elastic resilience, during expansion of the pole core assembly 12, the elastic member 16 is compressed to provide an expansion space for the pole core assembly 12.
Alternatively, referring to fig. 2 and 3, the pole core assembly 12 includes a plurality of pole core groups 13 arranged in sequence, and adjacent pole core groups 13 are electrically connected through a flexible connector 14;
the flexible connecting member 14 includes a buffering part which is bent and extended along the length direction of the pole core group 13 or the height direction of the pole core group 13, and the buffering part is used for buffering the interaction force generated by the two adjacent pole core groups 13 in the thickness direction of the pole core group 13.
Specifically, the thickness direction of the pole core group 13 is consistent with the first direction X of the box body, the length direction of the pole core group 13 is consistent with the second direction Y of the box body, and the height direction of the pole core group 13 is perpendicular to the thickness direction and the length direction thereof, that is, consistent with the third direction Z in the figure.
Specifically, the flexible connecting member 14 has conductivity, and the flexible connecting member 14 can realize the electrical connection between the pole core groups.
The pole core group 13 comprises at least one pole core.
The utility model discloses do not do the restriction to the connected mode of utmost point core group 13 arrangement and utmost point core group 13, as long as two utmost point core groups 13 of interconnect pass through the 14 electricity of flexonics spare are connected can.
The utility model discloses flexible connectors 14 include along utmost point core group 13 length direction or utmost point core group 13 thickness direction carries out the buffering portion of crooked extension, and buffering portion can cushion and absorb the effort that two adjacent utmost point core group 13's thickness direction produced, can avoid the connection between the utmost point core group 13 to receive the influence, ensures the reliability and the security that the battery package used that utmost point core group 13 connects.
For example, the pole core groups are subjected to external acting force (for example, external impact or external vibration) between the pole core groups, so that relative displacement is easily generated between the two adjacent pole core groups in the length direction and the thickness direction of the pole core groups.
Specifically, referring to fig. 3, the pole core group 13a and the pole core group 13b are connected by a first flexible connecting piece 14a and a second flexible connecting piece 14b, wherein one end of the second flexible connecting piece 14b is electrically connected with the pole core group 13a, one end of the first flexible connecting piece 14a is electrically connected with the pole core group 13b, and a part of the first flexible connecting piece 14a and a part of the second flexible connecting piece 14b are overlapped and fixedly connected. This example improves the connection strength between the pole core group 13a and the pole core group 13 b.
Alternatively, referring to fig. 2 to 3, the pole core assembly 12 further includes a protection member 15, the protection member 15 is disposed between two adjacent pole core assemblies 13, and the protection member 15 is used to cover the flexible connecting member 14;
the protection piece 15 has a first end face and a second end face arranged opposite to the first end face, and the first end face and the second end face are respectively abutted against first surfaces opposite to two adjacent pole core groups 13.
Specifically, the protection member 15 is disposed at the periphery of the flexible connection member 14, that is, a receiving cavity may be formed in the protection member 15, the flexible connection member 14 is disposed in the receiving cavity, and the protection member 15 can provide a mechanical protection function and an insulation protection function for the flexible connection member.
Specifically, the protection member 15 is provided with a first end face and a second end face which are oppositely arranged, the first end face and the second end face are respectively abutted to the first surfaces opposite to the adjacent two pole core groups 13, that is, the width of the protection member 15 is equal to the distance between the adjacent pole core groups 13, when the pole core assembly 12 is installed in the box 10, a proper assembling pretightening force is applied in the installation direction (that is, the second direction Y) of the pole core assembly 12, and the protection member 15 has a supporting effect on the pole core groups 13 in the second direction Y, so that relative displacement between the adjacent pole core groups is avoided, and further, the flexible connecting member 14 is prevented from generating connecting stress due to the relative displacement, and the connection reliability between the flexible connecting member and the pole core groups is ensured. Alternatively, the guard 15 may be made of rubber.
Optionally, referring to fig. 2 and 5, the battery pack further includes a second supporting portion 19, and the second supporting portion 19 is disposed on the inner wall of the accommodating cavity;
the pole piece assembly 12 is connected to a second support portion 19 through the protection member 15, and one end of the second support portion 19 abuts against the inner wall of the accommodation cavity and the other end abuts against the protection member 15.
In particular, a second support portion 19 is provided on the periphery of the inner wall of the containing cavity, the second support portion 19 is arranged between the box body 10 and the protection member 15 and respectively abuts against the inner wall of the box body and the protection member 15;
for example, along the first direction X of the case 10, the second support portion 19 abuts against the shielding member 15 provided between the pole core groups to limit the relative position of the pole core unit with respect to the case in the first direction X;
along the second direction Y of the box body, a second support part 19 is connected with the pole core assembly 12 through the protection piece 15, and the second support part 19 and the protection piece 15 limit the relative displacement of the pole core unit relative to the box body in the second direction Y.
Optionally, the elastic member 16 is disposed between the pole core groups 13 oppositely disposed along the first direction X of the box 10.
In particular, said elastic members 16 are arranged between oppositely arranged surfaces of adjacent pole core groups, the elastic members 16 being typically an elastic material, which may be for example foam or the like.
The surface of elastic component 16 covers has the adhesive, bonds adjacent utmost point core group together to reduce the relative displacement of each utmost point core group under different operating modes (the relative displacement that utmost point core group produced along the first direction X of box), prevent that utmost point core group from leading to the seal membrane damage of utmost point core group surface because of mutual contact friction.
On the other hand, in the present example, taking the lithium ion battery pack as an example, during the charging process of the electrode core set, lithium ions are extracted from the positive electrode and inserted into the negative electrode, which causes the distance between the negative electrode layers to increase and cause expansion, and since the elastic member 16 has elastic resilience, during the expansion process of the electrode core set, the elastic member 16 is compressed to provide an expansion space for the electrode core set.
Optionally, the battery pack further comprises a control module, and the pole core unit 11 is electrically connected with the control module. The pole piece unit of this example is connected with control module electricity, and pole piece unit current can normally be exported for the battery package can carry out the electricity with external circuit and connect.
According to the utility model discloses another aspect provides an electronic equipment. The electronic device comprises a device body and the battery pack 100, wherein the battery pack 100 is arranged in the device body.
When electronic equipment is used to the battery package, the battery package is in operating condition, can adjust the assembly pretightning force between the utmost point core unit through adjusting part, makes the compressing tightly that the homoenergetic is abundant between the utmost point core subassembly that constitutes utmost point core unit fixed, has guaranteed the stability of battery package, has guaranteed utmost point core unit current output stability, has guaranteed battery package structural safety, and then electronic equipment can normal operating. The electronic device may be an electric car, for example.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A battery pack, comprising:
the box body is internally provided with an accommodating cavity, the box body is provided with at least two first supporting parts in the accommodating cavity,
the pole core units are arranged in the accommodating cavity along a first direction of the box body, an adjusting part is movably arranged between the two oppositely arranged pole core units, and the first supporting parts are arranged on two sides of the adjusting part along a second direction of the box body and are abutted against the adjusting part;
in the first direction of box, adjusting part and two that set up relatively the utmost point core unit butt, adjusting part is used for adjusting the assembly pretightning force of utmost point core unit.
2. The battery pack of claim 1, wherein the oppositely disposed pole core units have oppositely disposed first and second surfaces;
the adjusting component comprises two first components and a second component, the first components are respectively attached to the first surface and the second surface, and the second component is arranged between the first components;
the second component comprises a plurality of sub-components, and the assembling pre-tightening force of the pole core unit is adjusted by adjusting the number of the sub-components.
3. The battery pack according to claim 2, wherein the first member includes a catching portion bent in a first direction of the case,
the first supporting part comprises a bearing part matched with the buckling part, and the bearing part is clamped with the buckling part.
4. The battery pack according to claim 1, wherein the pole core unit includes pole core assemblies arranged in the first direction of the case, and an elastic member is disposed between adjacent pole core assemblies, the elastic member being connected to opposite surfaces of the adjacent pole core assemblies.
5. The battery pack according to claim 4, wherein the pole core assembly comprises a plurality of pole core groups arranged in sequence, and adjacent pole core groups are electrically connected through a flexible connecting member;
the flexible connection spare includes along utmost point core group length direction or utmost point core group thickness direction carries out the buffering portion of crooked extension, buffering portion is used for buffering two adjacent utmost point core groups and is in utmost point core group thickness direction produced interact.
6. The battery pack of claim 5, wherein the pole core assembly further comprises a guard disposed between two adjacent pole core groups, the guard for covering the flexible connection member;
the protection piece is provided with a first end face and a second end face arranged opposite to the first end face, and the first end face and the second end face are respectively abutted with first surfaces opposite to two adjacent pole core groups.
7. The battery pack according to claim 6, further comprising a second support portion provided on an inner wall of the receiving chamber;
the pole core assembly is connected with a second supporting part through the protection piece, one end of the second supporting part is abutted against the inner wall of the accommodating cavity, and the other end of the second supporting part is abutted against the protection piece.
8. The battery pack according to claim 5, wherein the elastic member is disposed between the oppositely disposed pole core groups in the first direction of the case.
9. The battery pack of claim 1, further comprising a control module, the pole core unit being electrically connected to the control module.
10. An electronic apparatus characterized in that the electronic apparatus comprises an apparatus main body and the battery pack according to any one of claims 1 to 9, the battery pack being provided in the apparatus main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021423023.0U CN212587614U (en) | 2020-07-17 | 2020-07-17 | Battery pack and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021423023.0U CN212587614U (en) | 2020-07-17 | 2020-07-17 | Battery pack and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212587614U true CN212587614U (en) | 2021-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021423023.0U Active CN212587614U (en) | 2020-07-17 | 2020-07-17 | Battery pack and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212587614U (en) |
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2020
- 2020-07-17 CN CN202021423023.0U patent/CN212587614U/en active Active
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