Battery modules and electrical equipment

Abstract

The present application discloses a battery module and an electrical device, which relates to the field of batteries. The battery module includes: a battery pack, an electrical connector and an end plate assembly, wherein the battery pack includes a plurality of batteries arranged along a first direction; the electrical connector is electrically connected to the battery pack; the end plate assembly includes an end plate and a support, wherein the end plate covers one end of the battery pack in the first direction, and the support supports the electrical connector, which is arranged at one end of the end plate in the second direction and is movably connected to the end plate; wherein the second direction intersects with the first direction, so as to facilitate the assembly of the electrical connector and the support.

Description

Technical Field

[0001] The present application generally relates to the field of battery technology, and in particular, to a battery module and an electrical device. Background Art

[0002] The battery module usually includes a support for supporting the electrical connector. However, the battery module will inevitably have tolerances due to manufacturing processes and other reasons, which makes it difficult to assemble the electrical connector and the support, and even makes it impossible to assemble the electrical connector and the support.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] A main purpose of the present application is to provide a battery module and an electrical device.

[0005] In order to achieve the above application purpose, this application adopts the following technical solutions:

[0006] According to one aspect of the present application, a battery module is provided, the battery module comprising:

[0007] A battery pack, comprising a plurality of batteries arranged along a first direction;

[0008] An electrical connector electrically connected to the battery pack;

[0009] An end plate assembly comprises an end plate and a support, wherein the end plate covers one end of the battery pack in the first direction, and the support supports the electrical connector and is arranged at one end of the end plate in the second direction and is movably connected to the end plate, wherein the second direction intersects with the first direction.

[0010] In the battery module provided in this embodiment, the support is movably connected to the end plate, so that the support can move relative to the end plate in at least one of the height direction, width direction and thickness direction of the end plate; when the support and the electrical connector are misaligned due to the stacking of multiple batteries in the battery pack and the dimensional tolerance, by adjusting the position of the support on the end plate, the tolerance of the electrical connector in at least one of the height direction, width direction and thickness direction can be absorbed, which facilitates the assembly of the electrical connector and the support. At the same time, since the electrical connector is usually fixed to the support by bolts, the electrical connector is provided with a through hole for bolt fixing, by adjusting the position of the support on the end plate to absorb the tolerance of the electrical connector in at least one of the height direction, width direction and thickness direction, the size of the through hole on the electrical connector can be reduced, thereby improving the current flow capacity of the electrical connector and reducing the heat generation.

[0011] According to one embodiment of the present application, a mounting groove is formed on the end plate, and the support is movably disposed in the mounting groove.

[0012] The battery module provided in this embodiment is provided with a mounting groove on the support, and the support is arranged in the mounting groove. The support can move in the mounting groove, and the limiting effect of the mounting groove is used to achieve the purpose of moving the support in at least one direction of the height direction, the width direction and the thickness direction of the end plate, thereby improving the limiting effect of the movement and adjustment of the support and preventing the support from falling off the end plate.

[0013] According to one embodiment of the present application, the support is clamped with the end plate.

[0014] The battery module provided in this embodiment facilitates the assembly of the support and the end plate by enabling the support and the end plate to be clamped together. After the support and the end plate are clamped together, the support and the end plate can be movably connected, that is, the support can be moved relative to the end plate in at least one direction of the height direction, width direction and thickness direction of the end plate, and then by adjusting the clamping position of the support on the end plate, the tolerance of the electrical connector in at least one direction of the height direction, width direction and thickness direction can be absorbed, thereby facilitating the assembly of the electrical connector and the support.

[0015] According to one embodiment of the present application, the mounting groove is formed with two clamping holes, and the two clamping holes are respectively arranged on two opposite sides of the mounting groove, and the support is provided with two clamping arms, and the clamping arms are provided with clamping protrusions, and the clamping protrusions of the two clamping arms are respectively inserted into the two clamping holes to realize the clamping connection between the support and the end plate.

[0016] The battery module provided in this embodiment is configured such that the support is clamped with the end plate by the clamping protrusion being located in the clamping hole.

[0017] According to one embodiment of the present application, the size of the clamping hole is larger than the size of the clamping protrusion.

[0018] The battery module provided in this embodiment makes the size of the clamping hole larger than the size of the clamping protrusion so that the clamping protrusion can move in the clamping hole, so that the support can be movably clamped with the end plate.

[0019] According to one embodiment of the present application, in a direction perpendicular to the two opposite side surfaces, the distance between the two opposite side surfaces of the mounting groove is greater than the distance between the opposite surfaces of the two clamping arms and less than the distance between the opposite surfaces of the clamping protrusions in the two clamping holes.

[0020] In the battery module provided in this embodiment, the distance between the two side walls is greater than the distance between the surfaces of the two clamping arms facing each other, so that the two clamping arms can move in the width direction of the end plate, thereby adjusting the left and right positions of the support in the installation slot, that is, adjusting the position of the support in the width direction of the end plate, so that when the support and the electrical connector are misaligned in the width direction of the end plate, by adjusting the position of the support in the width direction of the end plate, the tolerance of the electrical connector in the width direction of the end plate can be absorbed, which facilitates the assembly of the electrical connector and the support. When the two clamping arms move in the width direction of the end plate, when one of the clamping arms abuts against the side wall of the installation slot, the clamping protrusion of the other clamping arm also has a portion located in the clamping hole, so that the clamping protrusion does not withdraw from the clamping hole, thereby ensuring the clamping connection between the clamping arm and the clamping hole.

[0021] According to one embodiment of the present application, the support is further provided with a positioning portion, and the positioning portion is located between the two clamping arms; there is a gap between the positioning portion and the side surface of the installation groove.

[0022] The battery module provided in this embodiment has a gap between the positioning portion and the side wall of the mounting groove. When the position of the support in the thickness direction of the mounting groove is adjusted, the positioning portion abuts against the side wall of the mounting groove to form a movement limit, and cooperates with the clamping arm to form a movement limit for the support in the mounting groove, thereby improving the stability of the support in the mounting groove.

[0023] According to one embodiment of the present application, there is a gap between the clamping arm and the positioning portion.

[0024] The battery module provided in this embodiment can be easily deformed toward the positioning portion when the support and the end plate are assembled through the gap between the clamping arm and the positioning portion so that the clamping protrusion can be clamped into the clamping hole.

[0025] According to one embodiment of the present application, the end plate assembly further includes a side plate, the side plate includes a main body and a positioning portion, the positioning portion is located on one side of the main body in the first direction, and the main body and the end plate are overlapped in the thickness direction;

[0026] Wherein, one of the positioning portion and the support is provided with a protrusion, and the other is provided with a groove, and the protrusion is movably located in the groove.

[0027] The battery module provided in this embodiment realizes the limited connection between the support and the side plate by the side plate positioning part cooperating with the groove and the protrusion on the support, thereby improving the stability of the support assembly on the end plate. The side plate can be an insulating plate or a heat insulation plate, or an insulating heat insulation plate to achieve insulation and heat insulation of the battery cell.

[0028] According to one embodiment of the present application, the side plate is located between the end plate and the battery pack.

[0029] The battery module provided in this embodiment is located between the end plate and the battery pack through the side plate to achieve insulation and heat insulation for the battery pack.

[0030] According to an embodiment of the present application, a limiting groove is formed on the support, and the limiting groove is used to accommodate the electrical connector.

[0031] The battery module provided in this embodiment is convenient for assembling the electrical connector and the support by providing the limiting groove, and can quickly realize the positioning of the electrical connector on the support.

[0032] According to an embodiment of the present application, a limiting portion is provided in the limiting groove, and the limiting portion limits the electrical connector in the limiting groove.

[0033] The battery module provided in this embodiment further forms an assembly limit for the electrical connector and the support by providing a limit portion, so that the electrical connector and the support can be stably connected to avoid misalignment.

[0034] According to one embodiment of the present application, at least one mounting hole is provided on the support, and the mounting hole is used to fix the electrical connector.

[0035] The battery module provided in this embodiment implements fixing of the electrical connector on the support through the mounting hole.

[0036] According to another aspect of the present application, an electrical device is provided, and the electrical device includes the above-mentioned battery module.

[0037] In the electrical equipment provided in this embodiment, the support of the end plate assembly in the battery module is movably connected to the end plate, so that the support can move relative to the end plate in at least one of the height direction, width direction and thickness direction of the end plate; when the support and the electrical connector are misaligned due to the stacking of multiple batteries in the battery pack and the dimensional tolerance, by adjusting the position of the support on the end plate, the tolerance of the electrical connector in at least one of the height direction, width direction and thickness direction can be absorbed, which facilitates the assembly of the electrical connector and the support. At the same time, since the electrical connector is usually fixed to the support by bolts, the electrical connector is provided with a through hole for bolt fixing, by adjusting the position of the support on the end plate to absorb the tolerance of the electrical connector in at least one of the height direction, width direction and thickness direction, the size of the through hole on the electrical connector can be reduced, thereby improving the current flow capacity of the electrical connector, reducing the heat generation, and improving the reliability of the electrical equipment.

[0038] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and other features and advantages of the present application will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0040] Figure 1 A schematic diagram of a battery module provided for one embodiment of the present application;

[0041] Figure 2 A front view schematic diagram of an end plate and a support provided in one embodiment of the present application;

[0042] Figure 3 A schematic diagram of the reverse side of an end plate and a support provided in one embodiment of the present application;

[0043] Figure 4 A front schematic diagram of an end plate provided for one embodiment of the present application;

[0044] Figure 5 A schematic diagram of the reverse side of an end plate provided for one embodiment of the present application;

[0045] Figure 6 A schematic diagram of the structure of a support provided in one embodiment of the present application;

[0046] Figure 7 A front view schematic diagram of a support provided in one embodiment of the present application;

[0047] Figure 8 A schematic diagram of the reverse side of a support provided in one embodiment of the present application;

[0048] Fig. 9 A front view schematic diagram of an end plate, a support and an electrical connector provided in one embodiment of the present application;

[0049] Fig.10 A schematic diagram of the reverse side of an end plate, a support and an electrical connector provided in one embodiment of the present application;

[0050] Fig.11 A front view schematic diagram of an end plate, a support and a side plate provided for an embodiment of the present application;

[0051] Fig.12 A schematic diagram of the reverse side of the end plate, the support and the side plate provided in one embodiment of the present application;

[0052] Fig.13 A front view schematic diagram of a side panel provided for one embodiment of the present application;

[0053] Fig.14 A schematic diagram of the reverse side of a side panel provided for one embodiment of the present application.

[0054] Description of reference numerals:

[0055] 10. Battery module;

[0056] 100, end plate assembly; 110, end plate; 111, mounting groove; 112, clamping hole; 113, reinforcing rib; 120, support; 121, clamping arm; 122, clamping convex; 123, limiting groove; 124, mounting hole; 125, groove; 130, side plate; 131, main body; 132, positioning part; 133, protrusion;

[0057] 200, electrical connector;

[0058] 300, battery pack;

[0059] 400. Cable tie. DETAILED DESCRIPTION

[0060] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0061] The embodiment of the present application first provides a battery module, such as Figures 1 to 10 As shown, the battery module 10 includes an end plate assembly 100, an electrical connector 200 and a battery pack 300. The end plate assembly 100 includes: an end plate 110 and a support 120, the end plate 110 covers one end of the battery pack 300 in a first direction, the support 120 supports the electrical connector 200, the connector 200 is disposed at one end of the end plate 110 in a second direction, and the connector 200 is movably connected to the end plate 110; wherein the second direction intersects with the first direction, the first direction may be the thickness direction Y of the battery pack 300, and the second direction may be the height direction of the battery pack 300.

[0062] In the end plate assembly 100 provided in the present application, the connector 200 is movably connected to the end plate 110, so that the support 120 can move relative to the end plate 110 in at least one of the height direction Z, width direction X and thickness direction Y of the end plate 110; when the support 120 and the electrical connector 200 are misaligned due to the stacking of multiple batteries in the battery pack 300 and the dimensional tolerance, the position of the support 120 on the end plate 110 can be adjusted to absorb the displacement of the electrical connector 200 in at least one of the height direction Z, width direction X and thickness direction Y. The tolerance in one direction is reduced, which facilitates the assembly of the electrical connector 200 and the support 120; at the same time, since the electrical connector 200 is usually fixed to the support 120 by bolts, a through hole for bolt fixing is provided on the electrical connector 200. By adjusting the position of the support 120 on the end plate 110 to absorb the tolerance of the electrical connector 200 in at least one direction of the height direction Z, the width direction X and the thickness direction Y, the size of the through hole on the electrical connector 200 can be reduced, thereby improving the current flow capacity of the electrical connector 200 and reducing the heat generation.

[0063] In one embodiment of the present application, Figure 4 and Figure 5 As shown, a mounting groove 111 is formed on the end plate 110, and the support 120 is movably arranged in the mounting groove 111 to be movably connected with the support 120. By arranging the mounting groove 111 on the support 120, the support 120 is arranged in the mounting groove 111, and the support 120 can move in the mounting groove 111. Through the limiting effect of the mounting groove 111, the support 120 can be moved in at least one direction of the height direction Z, the width direction X and the thickness direction Y of the end plate 110, thereby improving the limiting effect of the movement and adjustment of the support 120 and preventing the support 120 from coming off the end plate 110.

[0064] The cross section of the mounting groove 111 may be rectangular or quasi-rectangular, and the fixing portion 132 of the support 120 can be inserted into the mounting groove 111. The cross section of the mounting groove 111 may also be circular, elliptical, trapezoidal or irregular, etc., and the present application does not limit this.

[0065] In one embodiment of the present application, Figure 2 and Figure 3As shown, the support 120 is clamped with the end plate 110. By clamping the support 120 with the end plate 110, the assembly of the support 120 and the end plate 110 is facilitated; after the support 120 is clamped with the end plate 110, the support 120 is movably connected to the end plate 110, that is, the support 120 can move relative to the end plate 110 in at least one direction of the height direction Z, the width direction X and the thickness direction Y of the end plate 110, and then by adjusting the clamping position of the support 120 on the end plate 110, the tolerance of the electrical connector 200 in at least one direction of the height direction Z, the width direction X and the thickness direction Y can be absorbed, so that the assembly of the electrical connector 200 and the support 120 is facilitated.

[0066] Specifically, Figure 4 and Figure 5 As shown, the mounting groove 111 is provided with two clamping holes 112, and the two clamping holes 112 are respectively provided on two opposite sides of the mounting groove 111. The support 120 is provided with two clamping arms 121, and the two clamping arms 121 are respectively provided with clamping protrusions 122. The clamping protrusions 122 of the two clamping arms 121 are respectively inserted into the two clamping holes 112 to realize the clamping connection between the support 120 and the end plate 110. Through the elastic action of the clamping arms 121, the clamping protrusions 122 are respectively inserted into the two clamping holes 112, or withdrawn from the two clamping holes 112, so as to facilitate the assembly and disassembly of the battery module 10.

[0067] The size of the clamping hole 112 is larger than the size of the clamping protrusion 122, that is, in at least one direction of the height direction Z, the width direction X, and the thickness direction Y of the end plate 110, the size of the clamping hole 112 is larger than the size of the clamping protrusion 122. By making the size of the clamping hole 112 larger than the size of the clamping protrusion 122, the clamping protrusion 122 can move in the clamping hole 112, so that the support 120 can be movably clamped with the end plate 110.

[0068] For example, Figure 4 and Figure 5 As shown, in the width direction X of the end plate 110, two opposite side walls of the mounting groove 111 are respectively formed with clamping holes 112, as shown in FIG. Figure 6-Figure 8 As shown, two clamping arms 121 are provided on the support 120. After the support 120 is assembled on the end plate 110, the two clamping arms 121 are elastically deformed so that the clamping protrusions 122 are respectively located in the clamping holes 112 on the two side walls, thereby achieving the clamping connection between the support 120 and the end plate 110.

[0069] In the height direction Z of the end plate 110, the height of the clamping hole 112 is greater than the height of the clamping protrusion 122. By making the height of the clamping hole 112 greater than the height of the clamping protrusion 122, that is, the clamping protrusion 122 can move in the height direction Z of the end plate 110 in the clamping hole 112, so that the height of the support 120 in the installation groove 111 can be adjusted, that is, the height of the support 120 on the end plate 110 can be adjusted, so that when the support 120 and the electrical connector 200 are misaligned in the height direction Z, by adjusting the position of the support 120 in the height direction Z of the end plate 110, the tolerance of the electrical connector 200 in the height direction Z can be absorbed, so that the electrical connector 200 and the support 120 are easily assembled.

[0070] In the thickness direction Y of the end plate 110, the width of the clamping hole 112 is greater than the width of the clamping protrusion 122. By making the width of the clamping hole 112 greater than the width of the clamping protrusion 122, that is, the clamping protrusion 122 can move in the thickness direction Y of the end plate 110 in the clamping hole 112, so that the front and rear positions of the support 120 in the installation groove 111 can be adjusted, that is, the position of the support 120 in the thickness direction Y of the end plate 110 can be adjusted, so that when the support 120 and the electrical connector 200 are misaligned in the thickness direction Y of the end plate 110, by adjusting the position of the support 120 in the thickness direction Y of the end plate 110, the tolerance of the electrical connector 200 in the thickness direction Y of the end plate 110 can be absorbed, so that the electrical connector 200 and the support 120 are easily assembled.

[0071] In the direction perpendicular to the two opposite side surfaces (width direction X), the distance between the two opposite side surfaces of the mounting groove 111 is greater than the distance between the opposite surfaces of the two clamping arms 121, and less than the distance between the opposite surfaces of the clamping protrusions 122 in the two clamping holes 112, that is, after the support 120 and the end plate 110 are assembled, the distance between the opposite surfaces of the clamping protrusions 122 of the two clamping arms 121 is greater than the distance between the two opposite side walls, and the distance between the two opposite side walls provided with the clamping holes 112 is greater than the distance between the opposite surfaces of the two clamping arms 121. The distance between the surfaces is so that after the support 120 is assembled on the end plate 110, the support 120 can be moved in the width direction X of the end plate 110, thereby adjusting the position of the support 120 in the width direction X of the end plate 110. When the support 120 and the electrical connector 200 are misaligned in the width direction X of the end plate 110, the position of the support 120 in the width direction X of the end plate 110 can be adjusted to absorb the tolerance of the electrical connector 200 in the width direction X of the end plate 110, thereby facilitating the assembly of the electrical connector 200 and the support 120.

[0072] Among them, when the two clamping arms 121 move in the width direction X of the end plate 110, when one of the clamping arms 121 abuts against the side wall of the installation groove 111, the clamping protrusion 122 of the other clamping arm 121 also has a part located in the clamping hole 112, so that the clamping protrusion 122 does not withdraw from the clamping hole 112, thereby ensuring the clamping connection between the clamping arm 121 and the clamping hole 112.

[0073] In one embodiment of the present disclosure, the mounting groove 111 is provided with a clamping hole 112 on two side walls in the thickness direction Y, and the support 120 is provided with two clamping arms 121. After the support 120 is assembled on the end plate 110, the two clamping arms 121 are elastically deformed so that the clamping protrusions 122 are respectively located in the clamping holes 112 on the two side walls, thereby realizing the clamping connection between the support 120 and the end plate 110.

[0074] In one embodiment of the present disclosure, the mounting groove 111 is provided with a clamping hole 112 on the four side walls in the thickness direction Y and the width direction X, and the support 120 is provided with four clamping arms 121. After the support 120 is assembled on the end plate 110, the four clamping arms 121 are elastically deformed so that the clamping protrusions 122 are respectively located in the clamping holes 112 on the four side walls, thereby realizing the clamping connection between the support 120 and the end plate 110.

[0075] The number of the clamping holes 112 of the clamping arm 121 is the same, or the number of the clamping holes 112 is greater than the number of the clamping arms 121 ; the number of the clamping arms 121 and the clamping holes 112 can be one, two, three, four or more, and this application does not impose any limitation on this.

[0076] In one embodiment of the present disclosure, Figure 8 As shown, the support 120 is further provided with a positioning portion 132, and the positioning portion 132 is located between the two clamping arms 121; there is a gap between the positioning portion 132 and the side wall of the mounting groove 111. By providing a gap between the positioning portion 132 and the side wall of the mounting groove 111, when the support 120 is adjusted in the thickness direction Y of the mounting groove 111, the positioning portion 132 abuts against the side wall of the mounting groove 111 to form a movement limit, and cooperates with the clamping arms 121 to form a movement limit of the support 120 in the mounting groove 111, thereby improving the stability of the support 120 in the mounting groove 111.

[0077] Among them, Figure 8 As shown, the clamp arm 121 is located between the positioning portion 132 and the side wall of the mounting groove 111, and there is a gap between the clamp arm 121 and the positioning portion 132. Through the gap between the clamp arm 121 and the positioning portion 132, when the support 120 and the end plate 110 are assembled, it is convenient to deform toward the positioning portion 132 so that the clamping protrusion 122 is clamped into the clamping hole 112.

[0078] In one embodiment of the present disclosure, Figure 6As shown, the protrusion 122 is located at the end of the free end of the clamp arm 121, so that the protrusion 122 is deformed by the clamp arm 121 and is located in the clamp hole 112. Of course, the protrusion 122 can also be located in the middle of the clamp arm 121, or near the free end, and this application does not limit this.

[0079] Among them, Figure 6 As shown, the surface of the locking protrusion 122 facing the bottom of the installation groove 111 can be an inclined surface, so as to guide the locking protrusion 122 to slide into the locking hole 112 through the inclined surface.

[0080] The surface of the locking protrusion 122 away from the bottom of the installation groove 111 can be a plane, that is, the plane is perpendicular or substantially perpendicular to the locking arm 121 to ensure that the support 120 can be prevented from withdrawing from the installation groove 111 after abutting against the locking hole 112 .

[0081] The clamping hole 112 on the side wall of the installation groove 111 may be rectangular, and the clamping protrusion 122 may also be quasi-rectangular, so as to ensure that the clamping protrusion 122 is in line contact or surface contact with any side edge of the clamping hole 112 after abutting, so as to improve the reliability of the clamping connection. Of course, the clamping hole 112 may also be trapezoidal, triangular, elliptical or irregular, and the shape of the clamping protrusion 122 can be located in the clamping hole 112 and is smaller than the clamping hole 112 in all directions, and this application does not impose any restrictions on this.

[0082] Among them, the shapes and sizes of the card holes 112 on different side walls may be the same or different, the heights of the card holes 112 on different side walls in the mounting groove 111 may be the same or different, and one or more card holes 112 may be set on the same side wall; one or more card protrusions 122 may be set on a card arm 121, and the number and positions of the card protrusions 122 on multiple card arms 121 may be the same or different.

[0083] The number of the locking holes 112 is equal to or greater than the number of the locking protrusions 122 . After the support 120 and the end plate 110 are assembled, all the locking protrusions 122 can be located in the corresponding locking holes 112 .

[0084] In one embodiment of the present application, Figure 4 As shown, the end plate 110 is provided with a reinforcing rib 113, and the reinforcing rib 113 is connected to the side wall of the mounting groove 111, or the reinforcing rib 113 is connected to the bottom of the mounting groove 111, or the reinforcing rib 113 is connected to the side wall and the bottom of the mounting groove 111. By providing the reinforcing rib 113, the structural strength of the mounting groove 111 is improved, and when the support 120 is assembled in the mounting groove 111, the structure of the mounting groove 111 will not be damaged, thereby improving the reliability of the assembly of the support 120 with the end plate 110.

[0085] One or more reinforcing ribs 113 may be connected to the side wall of the installation groove 111 , and one or more reinforcing ribs 113 may be connected to the bottom of the installation groove 111 .

[0086] In one embodiment of the present application, Figure 6 , Figure 7 , Fig. 9 and Fig.10 As shown, a limiting groove 123 is formed on the support 120, and the limiting groove 123 is used to accommodate the electrical connector 200. By providing the limiting groove 123, the assembly of the electrical connector 200 and the support 120 is facilitated, and the electrical connector 200 can be quickly positioned on the support 120.

[0087] Among them, Figure 6 and Figure 7 As shown, a limiting portion 125 is provided in the limiting groove 123, and the limiting portion 125 forms a limit for the electrical connector 200 in the limiting groove 123. By providing the limiting portion 125, the assembly limit of the electrical connector 200 and the support 120 is further formed, so that the electrical connector 200 and the support 120 can be stably connected to avoid misalignment.

[0088] Among them, the limiting portion 125 is a protruding structure formed on the bottom of the limiting groove 123, and the protruding structure limits the electrical connector 200 in the width direction X and the thickness direction Y of the end plate 110; the protruding structure is formed with an opening, and the electrical connector 200 can extend into the limiting space formed by the protruding structure through the opening.

[0089] The support 120 is provided with at least one mounting hole 124, and the mounting hole 124 is used to fix the electrical connector 200. Figure 6 and Figure 7 As shown, the support 120 is provided with two mounting holes 124, and the electrical connector 200 is also provided with two through holes in a matching manner, and bolts are passed through the through holes of the electrical connector 200 and the mounting holes 124 of the support 120 to achieve threaded connection between the electrical connector 200 and the support 120. By adjusting the position of the support 120 on the end plate 110 to absorb the tolerance of the electrical connector 200 in at least one direction of the height direction Z, the width direction X, and the thickness direction Y, the size of the through hole on the electrical connector 200 can be reduced, thereby improving the flow capacity of the electrical connector 200 and reducing the heat generation.

[0090] The mounting hole 124 on the support 120 may be a threaded hole, that is, the electrical connector 200 and the support 120 may be threadedly connected by screws.

[0091] In one embodiment of the present application, Figure 11-Figure 14As shown, the end plate assembly 100 further includes: a side plate 130. The side plate 130 includes a main body 131 and a positioning portion 132. There is an angle between the main body 131 and the positioning portion 132. The main body 131 and the end plate 110 are overlapped in the thickness direction Y; wherein, a protrusion 133 is provided on one of the positioning portion 132 and the support 120, and a groove 126 is provided on the other. The support 120 and the side plate 130 are limitedly connected by the groove 126 and the protrusion 133. The positioning portion 132 of the side plate 130 cooperates with the groove 126 and the protrusion 133 on the support 120 to achieve the limited connection between the support 120 and the side plate 130, thereby improving the stability of the support 120 assembled on the end plate 110.

[0092] The included angle between the main body portion 131 and the positioning portion 132 is a right angle or substantially a right angle, and the positioning portion 132 is parallel or substantially parallel to the top surface of the end plate 110 .

[0093] The side plate 130 is located between the end plate 110 and the battery pack 300 . The side plate 130 may be an insulating plate or a heat-insulating plate, or an insulating and heat-insulating plate, so as to achieve insulation and heat insulation for the battery pack 300 .

[0094] Among them, the protrusion 133 on the positioning portion 132 of the side plate 130 extends along the width direction X of the end plate 110, and the groove 126 on the support 120 extends along the width direction X of the end plate 110, so that the support 120 can move in the width direction X of the end plate 110; in the thickness direction Y of the end plate 110, the width of the protrusion 133 on the positioning portion 132 of the side plate 130 is smaller than the width of the groove 126 on the support 120, so that the support 120 can move in the thickness direction Y of the end plate 110.

[0095] The battery module 10 includes two sets of end plate assemblies 100 provided in the above embodiment, a battery pack 300 is arranged between the two sets of end plate assemblies 100, and the battery pack 300 includes a plurality of batteries, and the stacking direction of the plurality of batteries is perpendicular to the large surface of the battery. The two sets of end plate assemblies 100 and the battery pack 300 are fixed together by a cable tie 400.

[0096] The electrical connector 200 may be a high voltage electrical connector or a low voltage electrical connector. The high voltage electrical connector may be used as an output pole of the battery cell, and the low voltage electrical connector may be used as an output pole of the signal circuit board.

[0097] The embodiment of the present application also provides an electrical device, which includes the battery module 10 provided in the above embodiment. The electrical device may be, for example, a vehicle or an energy storage device. In the electrical device provided in the present application, the connector 200 of the end plate assembly 100 in the battery module 10 is movably connected to the end plate 110, so that the support 120 can move relative to the end plate 110 in at least one direction of the height direction Z, width direction X and thickness direction Y of the end plate 110; when the support 120 and the electrical connector 200 are misaligned due to the stacking of multiple batteries in the battery pack 300 and the dimensional tolerance, by adjusting the position of the support 120 on the end plate 110, the tolerance of the electrical connector 200 in at least one direction of the height direction Z, width direction X and thickness direction Y can be absorbed, so as to facilitate the assembly of the electrical connector 200 and the support 120. At the same time, since the electrical connector 200 is usually fixed to the support 120 by bolts, a through hole for bolt fixing is opened on the electrical connector 200. By adjusting the position of the support 120 on the end plate 110 to absorb the tolerance of the electrical connector 200 in at least one direction of the height direction Z, the width direction X and the thickness direction Y, the size of the through hole on the electrical connector 200 can be reduced, thereby improving the current flow capacity of the electrical connector 200, reducing heat generation, and thus improving the reliability of the electrical equipment.

[0098] In the application examples, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the application examples can be understood according to the specific circumstances.

[0099] In the description of the application embodiments, it is necessary to understand that the directions or positional relationships indicated by the terms "upper" and "lower" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the application embodiments and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the application embodiments.

[0100] In the description of this specification, the description of the term "an embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0101] The above are only preferred embodiments of the application embodiments and are not intended to limit the application embodiments. For those skilled in the art, the application embodiments may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application embodiments shall be included in the protection scope of the application embodiments.

Claims

1. A battery module, characterized in that: include: A battery pack, comprising a plurality of batteries arranged along a first direction; An electrical connector electrically connected to the battery pack; An end plate assembly, comprising an end plate and a support, wherein the end plate covers one end of the battery pack in the first direction, the support supports the electrical connector, the electrical connector is disposed at one end of the end plate in the second direction, and is movably connected to the end plate; wherein the second direction intersects with the first direction; the first direction is the thickness direction of the battery pack, the second direction is the height direction of the battery pack, and the electrical connector can move relative to the end plate along the thickness direction and the width direction of the battery pack; Wherein, a mounting groove is formed on the end plate, and two clamping holes are formed on the mounting groove in the width direction, and the two clamping holes are respectively arranged on two opposite sides of the mounting groove, and the support is provided with two clamping arms, and the clamping arms are provided with clamping protrusions, and the clamping protrusions of the two clamping arms are respectively inserted into the two clamping holes to realize the clamping connection between the support and the end plate; Wherein, in the thickness direction, the size of the clamping hole is larger than the size of the clamping protrusion, so that the clamping protrusion can move in the clamping hole along the thickness direction; Among them, in the width direction, the distance between the two opposite side surfaces of the mounting groove is greater than the distance between the opposite surfaces of the two clamping arms, and smaller than the distance between the opposite surfaces of the clamping protrusions in the two clamping holes, so that the clamping protrusions can move in the clamping holes along the width direction.

2. The battery module according to claim 1, characterized in that: The support is clamped with the end plate.

3. The battery module according to claim 1, characterized in that: The support is also provided with a positioning portion, and the positioning portion is located between the two clamping arms; there is a gap between the positioning portion and the side surface of the installation groove.

4. The battery module according to claim 3, characterized in that: There is a gap between the clamp arm and the positioning portion.

5. The battery module according to claim 1, characterized in that: The end plate assembly further includes a side plate, the side plate including a main body and a positioning portion, the positioning portion is located on one side of the main body in the first direction, and the main body and the end plate are overlapped in the thickness direction; Wherein, one of the positioning portion and the support is provided with a protrusion, and the other is provided with a groove, and the protrusion is movably located in the groove.

6. The battery module according to claim 5, characterized in that: The side plate is located between the end plate and the battery pack.

7. The battery module according to claim 1, characterized in that: A limiting groove is formed on the support, and the limiting groove is used to accommodate the electrical connector.

8. The battery module according to claim 7, characterized in that: A limiting portion is provided in the limiting groove, and the limiting portion limits the electrical connection member in the limiting groove.

9. The battery module according to claim 1, characterized in that: The support is provided with at least one mounting hole, and the mounting hole is used to fix the electrical connector.

10. An electrical device, characterized in that: A battery module comprising any one of claims 1 to 9.

Images