CN216750128U - Battery module - Google Patents
Battery module Download PDFInfo
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- CN216750128U CN216750128U CN202220335217.8U CN202220335217U CN216750128U CN 216750128 U CN216750128 U CN 216750128U CN 202220335217 U CN202220335217 U CN 202220335217U CN 216750128 U CN216750128 U CN 216750128U
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- groove
- bus bar
- end plate
- battery module
- electrode bus
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Abstract
The utility model discloses a battery module, which comprises a battery pack and end plates positioned at two ends of the battery pack in the length direction, wherein the upper parts of the end plates are provided with accommodating spaces; the output pole base is inserted in the accommodating space along the height direction of the end plate; the output pole base is provided with a pressing rivet protruding towards the direction far away from the battery pack; one end of a leading-out electrode bus bar of the battery module is electrically connected with the battery pack, the other end of the leading-out electrode bus bar is provided with a long hole or a notch matched with the press rivet, and the leading-out electrode bus bar is fixedly connected with the output electrode base through the matching of the long hole or the notch and the press rivet. According to the battery module, the output electrode base is fixed in an embedding mode, the extraction electrode bus bar is in an inverted L shape, one end of the extraction electrode bus bar extends along the height direction of the end plate and is matched with the rivet pressing through the long hole or the notch, the height error of the extraction electrode bus bar is effectively compatible through the long hole or the notch, and the problem of existing tearing welding points is effectively solved.
Description
Technical Field
The utility model relates to the technical field of new energy automobiles, in particular to a battery module.
Background
One end of a leading-out electrode of the battery module is usually welded on a corresponding battery core, and the other end of the leading-out electrode is arranged on an end plate through an output electrode base so as to avoid welding spot desoldering caused by vibration; the output stage base in the prior art comprises a fixing portion and a connecting portion, the output pole base is fixed on the end plate through the fixing portion, the connecting portion extends in the thickness direction of the end plate, and the other end of the extraction pole bus bar is fixed on the connecting portion. Adopt this mode, the extraction pole busbar is Z shape or one usually, to the unable compatible both ends fixed point place plane height error of individual layer extraction pole busbar, extraction pole busbar one end welding is on the group battery, during the installation other end, easily tear the solder joint, in addition, to the other end of Z shape extraction pole busbar, it extends along end plate thickness direction and is connected with connecting portion to draw the end promptly, end plate thickness often receives the restriction of lightweight design, thickness can not be too thick, thereby when leading to extraction pole busbar and connecting portion to be connected, it is less along end plate thickness direction installation fixed space, be not convenient for connect.
Therefore, in view of the above technical problems, a need exists in the art to develop a novel battery module.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel battery module which is matched with a press rivet on an output electrode base embedded in an end plate and a long hole or a notch of an inverted L-shaped extraction electrode bus bar, effectively compatible with the installation height error of the extraction electrode bus bar, solves the problem of tearing a welding point, is not limited by the thickness direction, has enough assembly space, and solves the problems of small space and inconvenient assembly in the prior art.
In order to achieve the above purpose, the utility model provides the following technical scheme:
the utility model provides a battery module, which comprises:
a battery pack;
the end plates are positioned at two ends of the battery pack in the length direction, and the upper parts of the end plates are provided with accommodating spaces; and
the output pole base is inserted into the accommodating space along the height direction of the end plate;
the output pole base is provided with a pressing rivet protruding towards the direction far away from the battery pack;
one end of an extraction electrode bus bar of the battery module is electrically connected with the battery pack, the other end of the extraction electrode bus bar is provided with a long hole or a notch matched with the press rivet, and the extraction electrode bus bar is fixedly connected with the output electrode base through the matching of the long hole or the notch and the press rivet.
Furthermore, the upper part of the end plate is provided with a first groove and a second groove;
the first groove is configured to be open towards and have a slotting direction along the height direction of the end plate;
the second groove is configured as a structure that is open to a side away from the battery pack and has a slotting direction along a thickness direction of the end plate;
the first groove is communicated with the second groove;
one end of the second groove, which is far away from the first groove, is provided with stopping parts which are symmetrically arranged along the width direction of the end plate;
the space between the first groove, the second groove and the stopper is formed as the accommodation space.
Further, the output pole mount comprises:
an insertion part positioned at the bottom, wherein the insertion part can be embedded into the first groove;
a support portion and a connecting portion integrally formed with the insertion portion, the support portion being located between the insertion portion and the connecting portion;
one end of the connecting part, which is far away from the inserting part, is provided with an elastic part;
when the output pole base is embedded in the accommodating space, the elastic part is clamped with the stopping part.
Further, a step surface is formed between the insertion part and the support part;
when the inserting part is embedded into the first groove, the step surface is abutted against the upper end surface of the first groove;
the output pole base is limited in movement in the height direction of the end plate by the step surface and the elastic part.
Furthermore, two groups of convex parts are arranged on the connecting part, the two groups of convex parts are symmetrically arranged on two sides of one corresponding end of the extraction electrode bus bar, and each group of convex parts is provided with two convex parts arranged at intervals along the thickness direction of the end plate;
the stopping part is positioned between the two convex parts so as to limit the output pole base to move relative to the end plate along the thickness direction of the output pole base through the convex parts;
when the output pole base is embedded into the end plate, the top surface of the elastic part is abutted against the bottom surface of the stopping part correspondingly.
Further, an inlet is formed between the support portion and the corresponding protrusion, and an external load is electrically connected to the extraction electrode bus bar through the inlet; and/or the support part is provided with an inclined surface so as to avoid the external load through the inclined surface and be electrically connected with the leading-out electrode bus bar.
Furthermore, the connecting part is provided with a metal sheet which is integrally formed with the connecting part, and the metal sheet is provided with the press rivet;
the top surface of connecting portion is provided with the opening, the corresponding one end of extraction utmost point busbar is passed by the opening and with the rivet is pressed to be connected.
In the above technical scheme, the battery module provided by the utility model has the following beneficial effects:
according to the battery module, the output electrode base is fixed in an embedding mode, the extraction electrode bus bar is in an inverted L shape, one end of the extraction electrode bus bar extends along the height direction of the end plate and is matched with the rivet pressing through the long hole or the notch, the height error of the extraction electrode bus bar is effectively compatible through the long hole or the notch, and the problem of existing tearing welding points is effectively solved.
The mounting surface of the leading-out electrode bus bar of the battery module is positioned in the height direction of the end plate, is not limited by the thickness direction, has enough space for assembly, and effectively solves the problems of small space and inconvenient assembly in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an accommodating space of a battery module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an output electrode base of a battery module according to an embodiment of the utility model;
fig. 4 is a schematic view of an installation structure of a leading electrode bus bar and an output electrode base of a battery module according to an embodiment of the utility model.
Description of reference numerals:
1. a battery pack; 2. an end plate; 3. an extraction electrode bus bar; 4. an output pole base;
201. a first groove; 202. a second groove; 203. a stopper portion;
401. a connecting portion; 402. an insertion portion; 403. a support portion; 404. pressing rivets; 405. a metal sheet; 406. an elastic portion; 407. a convex portion; 408. an inlet; 409. a bevel.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings.
See fig. 1-4;
a battery module of this embodiment, this battery module includes:
a battery pack 1;
the output pole base 4 is inserted in the accommodating space along the height direction of the end plate 2;
the output pole base 4 is formed with a press rivet 404 protruding toward a direction away from the battery pack 1;
one end of an extraction electrode bus bar 3 of the battery module is electrically connected with the battery pack 1, the other end of the extraction electrode bus bar 3 is provided with a long hole or a notch matched with the press rivet 404, and the extraction electrode bus bar 3 is fixedly connected with the output electrode base 4 through the matching of the long hole or the notch and the press rivet 404.
Specifically, the embodiment discloses a novel battery module, which comprises a battery pack 1 and end plates 2 positioned at two ends of the battery pack 1 in the length direction, wherein in order to install an output electrode base 4, an accommodating space is formed at the upper part of the end plate 2 of the embodiment; the output pole base 4 of this embodiment is inserted into the accommodation space along the height direction of the end plate 2 and is connected with the end plate 2 in a clamping manner. It keeps away from 1 one side convex pressure rivet 404 of group battery to have the orientation on the output utmost point base 4, the extraction utmost point busbar 3 of this embodiment is "L" type structure of falling, and extraction utmost point busbar 3 has seted up slot hole or breach with pressure rivet 404 complex position, during the installation, through the height error of pressing the spacing compatible extraction utmost point busbar 3 of rivet 404 and slot hole or breach, effectively solve the current problem of tearing the solder joint, the installation face of extraction utmost point busbar 3 of this embodiment is located the direction of height of end plate 2, can not receive the restriction of thickness direction, ensure that this battery module has sufficient space assembly, it is little effectively to solve among the prior art space, be not convenient for the problem of assembly.
Preferably, the upper portion of the end plate 2 of this embodiment is provided with a first groove 201 and a second groove 202;
the first groove 201 is configured in a structure in which the opening faces and the grooving direction is along the height direction of the end plate 2;
the second groove 202 is configured as a structure that opens toward the side away from the battery pack 1 and the grooving direction is along the thickness direction of the end plate 2;
the first groove 201 and the second groove 202 are communicated;
one end of the second groove 202 away from the first groove 201 is provided with stopping parts 203 which are symmetrically arranged along the width direction of the end plate 2;
the space between the first groove 201, the second groove 202, and the stopper 203 is formed as an accommodation space.
Firstly, in order to adapt to the installation of the output pole base 4, the present embodiment specifically defines the structure of the accommodating space, which is divided into the first groove 201 and the second groove 202, the specific form of the groove is described in detail above, and in order to ensure the position of the output pole base 4 after installation, the stopper 203 is designed, and when the output pole base 4 is inserted into the accommodating space, the stopper 203 is used to limit the output pole base 4.
The output pole base 4 of the present embodiment includes:
an insertion portion 402 at the bottom, the insertion portion 402 being capable of being inserted into the first groove 201;
a support portion 403 and a connection portion 401 integrally formed with the insertion portion 402, the support portion 403 being located between the insertion portion 402 and the connection portion 401;
one end of the connecting part 401 far away from the inserting part 402 is provided with an elastic part 406;
when the output pole base 4 is fitted in the accommodating space, the elastic portion 406 is engaged with the stopper portion 203.
A step surface is formed between the insertion portion 402 and the support portion 403;
when the insertion portion 402 is fitted into the first groove 201, the step surface abuts against the upper end surface of the first groove 201; when the output pole base 4 is mounted, the movement of the output pole base 4 in the height direction thereof with respect to the end plate 2 is restricted by the step surface and the top surface of the elastic portion 406.
Preferably, two sets of convex portions 407 are disposed on the connecting portion 401 of this embodiment, the two sets of convex portions 407 are symmetrically disposed on two sides of one corresponding end of the extraction electrode bus bar 3, and each set of convex portions 407 has two convex portions 407 spaced along the thickness direction of the end plate 2;
the stopper 203 is located between the two bosses 407 to restrict the output pole base 4 from moving in the thickness direction thereof with respect to the end plate 2 by the bosses 407;
when the output electrode base 4 is fitted into the end plate 2, the top surface of the elastic portion 406 abuts against the bottom surface of the stopper portion 203.
In this embodiment, two sets of protrusions 407 are disposed on two sides of the connecting portion 401 in the width direction, the blocking portion 203 is located between the two protrusions 407, the two protrusions 407 limit the movement of the output pole base 4 relative to the end plate 2 along the thickness direction thereof, when the output pole base 4 is inserted into the end plate 2, the elastic portion 406 and the blocking portion 203 are elastically matched with each other toward one surface of the groove bottom of the second groove 202, and when the elastic portion 406 is matched in place, the top surface of the elastic portion 406 is located on the bottom surface of the corresponding blocking portion 203.
When the output pole base 4 and the end plate 2 of the embodiment are matched to effectively suppress vibration, the output pole base 4 moves relative to the end plate 2 along the width direction of the end plate 2, the thickness direction of the end plate 2 and the height direction of the end plate 2.
The battery pack 1 needs to supply power to an external load, and therefore, the battery module is provided with an inlet 408 for the external load to enter the output pole base 4 and be electrically connected with the extraction pole bus bar 3, specifically: an inlet 408 is formed between the support part 403 and the corresponding convex part 407, and an external load is electrically connected to the extraction electrode bus bar 3 through the inlet 408; and/or the support part 403 is provided with an inclined surface 409 so that the inclined surface 409 avoids the external load and is electrically connected with the extraction electrode bus bar 3.
Preferably, the connecting portion 401 of the present embodiment has a metal sheet 405 integrally formed therewith, and the metal sheet 405 has a rivet 404;
the top surface of the connecting portion 401 is provided with an opening, and the corresponding end of the extraction electrode bus bar 3 passes through the opening and is connected to the rivet 404.
In the above technical scheme, the battery module provided by the utility model has the following beneficial effects:
according to the battery module, the output electrode base is fixed in an embedding manner, the leading-out electrode bus bar 3 is in an inverted L shape, one end of the leading-out electrode bus bar extends along the height direction of the end plate 2 and is matched with the press rivet 404 through the long hole or the notch, the height error of the leading-out electrode bus bar 3 is effectively compatible through the long hole or the notch, and the problem of tearing welding points in the prior art is effectively solved.
The installation surface of the leading-out electrode bus bar 3 of the battery module is positioned in the height direction of the end plate 2, is not limited by the thickness direction, has enough space for assembly, and effectively solves the problems of small space and inconvenient assembly in the prior art.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.
Claims (7)
1. Battery module, its characterized in that, this battery module includes:
a battery pack (1);
the end plates (2) are positioned at two ends of the battery pack (1) in the length direction, and the upper parts of the end plates (2) are provided with accommodating spaces; and
the output pole base (4), the output pole base (4) is inserted into the accommodating space along the height direction of the end plate (2);
the output pole base (4) is provided with a press rivet (404) protruding towards the direction far away from the battery pack (1);
one end of an extraction electrode bus bar (3) of the battery module is electrically connected with the battery pack (1), the other end of the extraction electrode bus bar (3) is provided with a long hole or a notch matched with the press rivet (404), and the extraction electrode bus bar (3) is fixedly connected with the output electrode base (4) through the matching of the long hole or the notch and the press rivet (404).
2. The battery module according to claim 1, wherein the upper part of the end plate (2) is provided with a first groove (201) and a second groove (202);
the first groove (201) is configured to be open towards and have a slotting direction along the height direction of the end plate (2);
the second groove (202) is configured in a structure that opens to a side away from the battery pack (1) and the grooving direction is along the thickness direction of the end plate (2);
the first groove (201) and the second groove (202) are communicated;
one end of the second groove (202), which is far away from the first groove (201), is provided with stopping parts (203) which are symmetrically arranged along the width direction of the end plate (2);
the space between the first groove (201), the second groove (202) and the stopper (203) is formed as the accommodation space.
3. The battery module according to claim 2, wherein the output pole mount (4) comprises:
a bottom-located insert (402), the insert (402) being insertable into the first recess (201);
a support portion (403) and a connection portion (401) integrally formed with the insertion portion (402), the support portion (403) being located between the insertion portion (402) and the connection portion (401);
one end of the connecting part (401), which is far away from the inserting part (402), is provided with an elastic part (406);
when the output pole base (4) is embedded in the accommodating space, the elastic part (406) is clamped with the stopping part (203).
4. The battery module according to claim 3, wherein a step surface is formed between the insertion portion (402) and the support portion (403);
when the insertion part (402) is fitted into the first groove (201), the step surface abuts against the upper end surface of the first groove (201);
the output pole base (4) is limited in movement in the height direction of the end plate (2) by the step surface and the elastic part (406).
5. The battery module according to claim 3, wherein the connecting portion (401) is provided with two sets of protrusions (407), the two sets of protrusions (407) are symmetrically arranged on both sides of the corresponding end of the extraction electrode bus bar (3), and each set of protrusions (407) has two protrusions (407) arranged at intervals in the thickness direction of the end plate (2);
the stopping part (203) is positioned between the two convex parts (407) so as to limit the output pole base (4) to move along the thickness direction of the end plate (2) through the convex parts (407);
when the output pole base (4) is embedded into the end plate (2), the top surface of the elastic part (406) is abutted against the bottom surface of the corresponding stopping part (203).
6. The battery module according to claim 5, wherein an inlet (408) is formed between the support portion (403) and the corresponding convex portion (407), and an external load is electrically connected to the extraction electrode bus bar (3) through the inlet (408); and/or the support part (403) is provided with an inclined surface (409) so as to avoid the external load through the inclined surface (409) and be electrically connected with the extraction electrode bus bar (3).
7. The battery module according to claim 3, wherein the connecting part (401) has a metal sheet (405) integrally formed therewith, and the metal sheet (405) has the press rivet (404) thereon;
an opening is formed in the top surface of the connecting portion (401), and the corresponding end of the leading-out electrode bus bar (3) penetrates through the opening and is connected with the press rivet (404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220335217.8U CN216750128U (en) | 2022-02-18 | 2022-02-18 | Battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220335217.8U CN216750128U (en) | 2022-02-18 | 2022-02-18 | Battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216750128U true CN216750128U (en) | 2022-06-14 |
Family
ID=81918530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220335217.8U Active CN216750128U (en) | 2022-02-18 | 2022-02-18 | Battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216750128U (en) |
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2022
- 2022-02-18 CN CN202220335217.8U patent/CN216750128U/en active Active
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