Module support, battery pack and electric device

Abstract

The utility model provides a kind of module support, battery pack and electric equipment, module support includes support plate, two support pieces and first reinforcing plate, support plate is used to support battery module;Support plate has the first end surface and the second end surface relatively arranged along the length direction of module support;Two support pieces are located on the opposite sides of support plate along the width direction of module support, and two support pieces are used to support support plate on bearing surface;First reinforcing plate is located on the side of first end surface and / or second end surface, and is connected with two support pieces.The technical scheme of the application connects first reinforcing plate with the first end surface and / or second end surface of two support pieces, thereby connecting two support pieces spaced apart as a whole, improving the structural strength of support piece, enhancing the stability of support piece for supporting support plate and battery module on the upper side of support plate, reducing the possibility of deformation of module support, and improving the reliability of battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a module bracket, a battery pack, and an electrical device. Background Technology

[0002] In related technologies, in order to improve the space utilization of battery modules in battery packs, module brackets are usually set inside the battery pack. The module brackets are used to divide the internal space of the battery pack into multiple layers, so that the battery modules can be stacked in the battery pack along the height direction of the battery pack, thereby increasing the number of battery modules that the battery pack can accommodate per unit area and increasing the energy density of the battery pack.

[0003] However, the double-layer stacking of battery modules also poses a challenge to the support strength of the module bracket. The current module bracket structure is difficult to provide stable support for the upper battery module. Therefore, how to improve the support strength of the module bracket has become an urgent problem to be solved in the industry. Utility Model Content

[0004] In view of this, the present invention aims to provide a module bracket, a battery pack, and an electrical device, in order to solve the problem in the related art where the module bracket provides poor support strength for the stacked upper module.

[0005] To achieve the objectives of this application, in a first aspect, this application proposes a module bracket for supporting a battery module on a support surface. The module bracket includes a support plate, two support members, and a first reinforcing plate. The support plate is used to support the battery module. The support plate has a first end face and a second end face that are disposed opposite to each other along the length direction of the module bracket.

[0006] Two support members are disposed on opposite sides of the support plate along the width direction of the module bracket, and the two support members are used to support the support plate on the support surface;

[0007] The first reinforcing plate is disposed on one side of the first end face and / or the second end face, and is connected to the two support members.

[0008] In conjunction with the first aspect, in one possible implementation, the support plate further includes a third end face and a fourth end face disposed opposite to each other along the height direction of the module bracket;

[0009] The first reinforcing plate includes a limiting part and a connecting part. The connecting part is disposed on both sides of the limiting part along the width direction of the module bracket, and the connecting part is connected to the support member.

[0010] The limiting portion, the third end face, and the two supporting members enclose a first mounting space, which is used to accommodate the first battery module; and / or

[0011] The limiting part, the fourth end face, and the two supporting members surround and form a second installation space, which is used to accommodate the second battery module.

[0012] In conjunction with the first aspect, in one possible implementation, the support member includes a first support portion and a second support portion connected to each other, with the first support portions of the two support members arranged parallel to each other;

[0013] The second support portion is used to contact the support surface, and the second support portions of the two support members are at least partially inclined in opposite directions to each other;

[0014] The first reinforcing plate is connected to the first support portion and / or the second support portion.

[0015] In conjunction with the first aspect, in one possible implementation, the second support portion includes a first support segment and a second support segment, the first support segment being connected to the first support portion, and the first support segments of the two support members being inclined in directions opposite to each other.

[0016] The second support segment is connected to the side of the first support segment away from the first support portion, and the second support segment is used to connect perpendicularly to the support surface.

[0017] In conjunction with the first aspect, in one possible implementation, the first support segment is provided with a first clearance hole;

[0018] A portion of the structure of the second support section protrudes from the first clearance hole to form a mounting surface; the mounting surface is provided with a first mounting hole for a first fastener to pass through, so as to fix the module bracket to the support surface.

[0019] In conjunction with the first aspect, in one possible implementation, the support member further includes a second reinforcing plate disposed on one side of the second support portion and extending at least partially to the first support portion.

[0020] In conjunction with the first aspect, in one possible implementation, the support plate is provided with a second clearance hole extending through the module bracket along its height direction;

[0021] The second clearance hole includes an intersecting first hole segment and a second hole segment; the first hole segment extends along the length direction of the module bracket, and the second hole segment extends along the width direction of the module bracket.

[0022] In conjunction with the first aspect, in one possible implementation, the module bracket further includes an insulating layer disposed on the surface of the support plate.

[0023] Secondly, this application also proposes a battery pack, which includes:

[0024] Box;

[0025] A partition beam is disposed inside the housing and divides the housing into multiple cell cavities; the partition beam has a support surface.

[0026] Module bracket, wherein the module bracket is disposed on the support surface;

[0027] A first battery module is disposed in the first mounting space of the module bracket;

[0028] The second battery module is disposed in the second mounting space of the module bracket; the module bracket includes a support plate, two support members and a first reinforcing plate, the support plate is used to support the battery module; the support plate has a first end face and a second end face disposed opposite to each other along the length direction of the module bracket.

[0029] Two support members are disposed on opposite sides of the support plate along the width direction of the module bracket, and the two support members are used to support the support plate on the support surface;

[0030] The first reinforcing plate is disposed on one side of the first end face and / or the second end face, and is connected to the two support members.

[0031] Thirdly, this application also proposes an electrical device, the electrical device including a battery pack, the battery pack comprising:

[0032] The housing has a cell cavity, and the supporting surface is disposed in the cell cavity;

[0033] A module bracket, wherein the module bracket is disposed in the cell cavity;

[0034] The first battery module is disposed between the cavity wall of the cell cavity and the support plate;

[0035] The second battery module is disposed on the side of the support plate opposite to the first battery module; the module bracket includes a support plate, two support members and a first reinforcing plate, the support plate is used to support the battery module; the support plate has a first end face and a second end face disposed opposite to each other along the length direction of the module bracket.

[0036] Two support members are disposed on opposite sides of the support plate along the width direction of the module bracket, and the two support members are used to support the support plate on the support surface;

[0037] The first reinforcing plate is disposed on one side of the first end face and / or the second end face, and is connected to the two support members.

[0038] The technical solution of this application uses a support plate to divide the space into multiple layers, thereby enabling the battery modules to be stacked within the battery pack. This design effectively increases the number of battery modules that can be accommodated per unit area, thus significantly improving the energy density of the battery pack. Simultaneously, by connecting the first reinforcing plate to the first and / or second end faces of the two support members, the two spaced-apart support members are connected as a whole, improving the structural strength of the support members, enhancing the stability of the support members in supporting the support plate and the battery modules on the upper part of the support plate, reducing the possibility of module bracket deformation, and improving the reliability of the battery pack. Attached Figure Description

[0039] Figure 1 A schematic diagram of the structure of an embodiment of the battery pack provided in this application;

[0040] Figure 2 for Figure 1 A three-dimensional structural diagram of the middle module bracket;

[0041] Figure 3 for Figure 2 Top view;

[0042] Figure 4 for Figure 2 The side view of the first reinforcing plate thickness is omitted;

[0043] Figure 5 for Figure 3 A partial view of the second clearance hole;

[0044] Figure 6 for Figure 2 Side view;

[0045] Figure 7 for Figure 1 A magnified view of point a;

[0046] Figure 8 for Figure 2 A magnified view of the area at point c;

[0047] Figure 9 for Figure 1 A magnified view of the area at point b;

[0048] Figure 10 for Figure 1A schematic diagram of the assembly of the middle insulation layer and the support plate.

[0049] Explanation of reference numerals in the attached figures

[0050] 1000-battery pack;

[0051] 1-Box housing, 11-Cell cavity, 111-Supporting surface;

[0052] 2-Battery module, 2a-First battery module, 2b-Second battery module;

[0053] 3-Module bracket, 31-Support plate, 311-First end face, 312-Second end face, 313-Third end face, 314-Fourth end face, 315-Second clearance hole, 3151-First hole segment, 3152-Second hole segment, 3153-First area, 3154-Second area, 32-Support member, 321-First support surface, 322-Second support surface, 323-Third support surface, 324-Fourth support surface, 325-First support part, 326-Second support part, 3261-First support segment, 3262-Second support segment, 3263-First clearance hole, 3264-Mounting surface, 3265-First mounting hole, 3266-Second mounting hole;

[0054] 4-First reinforcing plate, 41-Limiting part, 42-Connecting part;

[0055] 5-Second reinforcing plate, 6-First fastener, 7-Second fastener, 8-Rivet fastener, 9-Positioning structure, 9a-Positioning pin, 10-Insulation layer, 110-First mounting space, 120-Second mounting space;

[0056] 6-Separation beam. Detailed Implementation

[0057] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0058] In some embodiments of this application, the electrical device includes a load and a battery pack, the load being used to consume electrical power to perform a specific task or function, and the battery pack being used to provide electrical power to the load.

[0059] For example, taking a vehicle as an example, when the electrical equipment is a vehicle, the vehicle can be a gasoline-powered vehicle, an electric vehicle, or a hybrid vehicle; this application does not limit this. The vehicle includes a body, a battery pack, and a load. The body serves as the supporting frame of the vehicle, used to support and connect the various component assemblies. The body has a battery compartment, and the battery pack is housed within the battery compartment. The battery pack is electrically connected to the load, which can be an electric motor, an air conditioning system, a central control system, or even a lighting system, a heating system, etc. The battery pack provides power to these loads, thereby ensuring the normal operation of the vehicle and the implementation of its various functions.

[0060] Please refer to Figure 1 In some embodiments of this application, the battery pack 1000 includes a housing 1, a partition beam 6, battery modules 2, and a module support 3. The housing 1 serves as the main structure of the battery pack 1000, supporting and connecting the various component assemblies of the battery pack 1000. The partition beam 6 is fixed inside the housing 1 and divides the housing 1 into multiple cell cavities 11. The partition beam 6 is provided with a support surface 111, and the module support 3 is disposed on the support surface 111. The module support 3 is used to form a stacked space above the cell cavities 11 for the battery modules 2 to be installed. This stacked space can be one layer, two layers, or multiple layers, and this application does not limit this.

[0061] It is understood that in other possible embodiments of this application, the support surface 111 may also be directly disposed on the bottom wall of the cell cavity, and this application does not limit this.

[0062] Some battery modules 2 are located inside the cell cavity 11, while others are located in the stacked space formed by the module support. This reduces the space occupied by the battery modules 2 in the length or width direction of the housing 1, increases the number of battery modules 2 that the housing 1 can accommodate per unit area, and increases the energy density of the battery pack 1000.

[0063] The battery module 2 is used to connect to a load to provide energy to the load. In some embodiments of this application, the battery module 2 includes multiple battery cells connected in series or parallel, and a mounting bracket for fixing each battery cell. The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, or a secondary battery; this application does not limit the types of batteries used.

[0064] For ease of explanation, the X direction in the diagram is used as the length direction of the module support, the Y direction as the width direction (Y), and the Z direction as the height direction (Z). The stacked space formed by the module support is one layer. The battery module located in the cell cavity is called the first battery module, and the battery module located in the stacked space is called the second battery module.

[0065] Please refer to Figures 2 to 4 Specifically, in one embodiment of this application, the module bracket 3 includes a support plate 31 and two support members 32. The support plate 31 is spaced apart above the support surface 111. The support plate 31 is used to divide the cell cavity 11 into upper and lower layers, so that the battery module 2 can be vertically installed in the battery pack 1000 along the height direction Z of the battery pack 1000. The number of support plates 31 can be one, two, or three, and this application does not limit this. When there is one support plate 31, the support plate 31 divides the cell cavity 11 into upper and lower layers. When there are two support plates 31, the two support plates 31 divide the cell cavity 11 into upper and lower three layers, and so on.

[0066] For example, in this application, the number of support plates 31 is set to one. The support plate 31 divides the cell cavity 11 into upper and lower layers. The support plate 31 has a first end face 311 and a second end face 312 that are arranged opposite each other along the length direction X of the module bracket 3, and a third end face 313 and a fourth end face 314 that are arranged opposite each other along the height direction Z of the module bracket 3. The third end face 313 is arranged opposite to the support surface 111. The first battery module 2a is disposed between the third end face 313 and the support surface 111, and the second battery module 2b is disposed on the fourth end face 314.

[0067] Please refer to Figure 5 To facilitate the wiring harness installation of the upper and lower battery modules 2, in one embodiment of this application, the support plate 31 is provided with a second clearance hole 315 extending through the module bracket 3 along the height direction Z. The second clearance hole 315 includes an intersecting first hole segment 3151 and a second hole segment 3152. The first hole segment 3151 extends along the length direction X of the module bracket 3, and the second hole segment 3152 extends along the width direction Y of the module bracket 3. The first hole segment 3151 and the second hole segment 3152 have overlapping first regions 3153 and staggered second regions 3154. The wiring harnesses of the first battery module 2a, the second battery module 2b, and other battery devices can be passed through the first region 3153 to the upper and lower sides of the support plate 31, thereby realizing the circuit connection between the upper and lower layers of the module bracket 3. The plugs of the first battery module 2a, the second battery module 2b, and other battery devices can be plugged in through the second region 3154, thereby realizing the electrical connection and data transmission between the various battery modules 2 and devices.

[0068] This embodiment sets the second clearance hole 315 as an intersecting first hole segment 3151 and second hole segment 3152, thereby forming a first area 3153 for threading wire harnesses and a second area 3154 around the first area 3153 for plug-in insertion. This standardizes the arrangement of wires and connectors in the battery pack 1000, avoids interference of wire harnesses with connector insertion, and reduces the difficulty of subsequent maintenance of the battery pack 1000.

[0069] Please refer to Figure 2 and Figure 4 Two support members 32 are used to support the support plate 31 on the support surface 111 to ensure that the support plate can maintain a relative distance from the support surface 111. Each support member 32 includes a first support surface 321 facing each other, a second support surface 322 facing away from each other, and a third support surface 323 and a fourth support surface 324 arranged opposite each other along the length direction X of the module bracket 3. The two support members 32 are arranged on opposite sides of the support plate 31 along the width direction Y of the module bracket 3, and the support plate 31 is connected to the first support surface 321 of the two support members 32.

[0070] Please refer to Figure 2 and Figure 6 To improve the support strength of the module bracket 3, in some embodiments of this application, the module bracket 3 further includes two first reinforcing plates 4, which are respectively disposed on the first end face 311 and the second end face 312 side of the support plate 31; and the support plate 31 disposed on the first end face 311 side is connected to the third support surface 323 of the support member 32, and the first reinforcing plate 4 disposed on the second end face 312 layer is connected to the fourth support surface 324 of the support member 32.

[0071] The first reinforcing plate 4 is used to connect the two spaced-apart support members 32 into a whole, improve the structural strength of the support member 32, enhance the stability of the support member 32 in supporting the support plate 31 and the battery module 2 on the upper side of the support plate 31, reduce the possibility of deformation of the module bracket 3, and improve the reliability of the battery pack 1000.

[0072] Understandably, in other possible embodiments of this application, the first reinforcing plate 4 may be provided only on the first end face 311 side of the support plate and connected to the third support surface 323 of the support member 32, or it may be provided only on the second end face 312 side of the support plate and connected to the fourth support surface 324 of the support member 32. This application does not limit this.

[0073] Please refer to Figure 2In one embodiment of this application, the first reinforcing plate 4 includes a limiting part 41 and a connecting part 42. The connecting part 42 is disposed on both sides of the limiting part 41 along the width direction Y of the module bracket 3, and the connecting part 42 is connected to the support member 32. The limiting part 41 protrudes from the third end face 313 and the fourth end face 314 of the support plate 31 along the height direction Z of the module bracket 3. The limiting part 41, the third end face 313 and the two support members 32 surround to form a first installation space 110, and the first battery module 2a is accommodated and fixed in the first installation space 110.

[0074] There are multiple ways to fix the first battery module 2a. The first battery module 2a can be fixed in the first installation space 110 by connecting it to the support surface 111, or by connecting it to the support surface 111, or by connecting it to the two support members 32. This application does not limit the method.

[0075] The limiting part 41, the fourth end face 314, and the two support members 32 form a second mounting space 120, in which the second battery module 2b is accommodated and fixed. There are various ways to fix the second battery module 2b. It can be fixed within the second mounting space 120 by connecting to the support surface 111, or by connecting to the two support members 32. This application does not limit the method of fixing.

[0076] This embodiment divides the first reinforcing plate 4 into two parts: a connecting part 42 and a limiting part 41. The limiting part 41 extends along the height direction Z of the module bracket 3 and protrudes from the third end face 313 and the fourth end face 314 of the support plate 31. This allows the first reinforcing plate 4 to not only connect the two support members 32 to one body, but also to restrict the movement of the first battery module 2a and the second battery module 2b along the length direction X of the module bracket 3 through the limiting part. This achieves structural reuse of the first reinforcing plate 4, enabling the battery pack 1000 to limit the first battery module and the second battery module without adding an additional limiting structure. This reduces the possibility of the first battery module 2a and the second battery module 2b moving after being impacted, and improves the stability of the first battery module 2a and the second battery module 2b within the module bracket 3.

[0077] Understandably, in other possible embodiments of this application, the limiting part 41 may only protrude from the third end face 313 and form a first installation space 110 together with the third end face 313 and the support member 32, or it may only protrude from the fourth end face 314 and form a second installation space 120 together with the fourth end face 314 and the support member 32. This application does not limit this.

[0078] Please refer to Figure 2 and Figure 7 In one embodiment of this application, the support member 32 includes a first support portion 325 and a second support portion 326 connected to each other. The first support portions 325 of the two support members 32 are arranged parallel to each other to provide a limit for the second battery module 2b along the width direction Y of the bracket module. The first support portion 325 has a second mounting hole 3266 on the side opposite to the second support portion 326. When the second battery module 2b is mounted on the support plate 31, the through hole of the fixing frame of the second battery module 2b is arranged opposite to the second mounting hole 3266. The second fastener 7 of the battery pack 1000 can pass through the through hole of the fixing frame and the second mounting hole 3266 of the first support portion 325 in sequence to fix the second battery module 2b on the module bracket 3.

[0079] In some possible embodiments of this application, the first support portion 325 is provided with a positioning structure 9 on the side opposite to the second support portion 326. The positioning structure 9 can be a positioning hole or a positioning pin 9a. For example, in this application, the first support portion is provided with a positioning pin 9a, which is used to cooperate with the positioning hole on the fixing frame to provide positioning when the second battery module 2b is installed in the second mounting space 120, thereby reducing the alignment time between the second battery module 2b and the second mounting space 120 and improving the installation efficiency of the second battery module 2b in the second mounting space 120.

[0080] In other possible embodiments of this application, the first support portion 325 is further provided with a rivet fastener 8 on the side opposite to the second mounting space 120. The rivet fastener 8 is used to fix the wiring harness or other sheet metal structure of the battery pack 1000, thereby improving the stability of each part installed in the battery pack 1000.

[0081] The second support portion 326 is used to contact and connect with the support surface 111. The first battery module 2a is located between the two second support portions 326, and the second support portions 326 are used to limit the first battery module 2a along the width direction Y of the bracket module. At the same time, the second support portions 326 of the two support members 32 are at least partially inclined in opposite directions. With this arrangement, on the one hand, compared with the vertical arrangement, the inclined second support portions 326 can decompose the pressure from the support plate 31 into an axial pressure perpendicular to the support surface 111 and a horizontal component force extending along the width direction Y of the module bracket 3. The horizontal components of the two support members 32 are equal in magnitude and opposite in direction, constraining each other, so that the module bracket 3 will not have lateral displacement along its width direction Y, improving the stability of the module bracket 3. On the other hand, the inclined second support portions 326 can increase the volume of the first mounting space 110, thereby facilitating the passage of the wiring harness of the battery pack 1000.

[0082] Please refer to Figure 4 , Figure 8 and Figure 9 In one embodiment of this application, the second support portion 326 includes a first support segment 3261 and a second support segment 3262 connected to each other. The first support segment 3261 is connected to the first support portion 325. The first support segments 3261 of the two support members 32 are inclined in opposite directions to each other. The second support segment 3262 is perpendicular to the support surface 111 and is in contact with each other. The second support segment 3262 is provided with a first mounting hole 3265. The first fastener 6 can pass through the first mounting hole 3265 and extend into the support surface 111, thereby fixing the second support segment 3262 and the entire module bracket 3 to the support surface 111, improving the stability of the module bracket 3 in supporting the battery module 2. Since the second support segment 3262 is perpendicular to the support surface 111, the pressure of the second support segment 3262 can be transmitted to the support surface 111 in a direction perpendicular to the support surface 111, thereby eliminating the generation of other lateral forces and improving the stability of the module bracket 3 on the support surface 111.

[0083] To facilitate the installation of the second support section 3262 and the support surface 111, in one embodiment of this application, the first support sections 3261 of the two support members 32 are inclined in opposite directions to each other; the first support section 3261 is provided with a first clearance hole 3263; a portion of the structure of the second support section 3262 protrudes from the first clearance hole 3263 to form a mounting surface 3264, and a first mounting hole 3265 is provided on the mounting surface 3264. The first fastener 6 of the battery pack 1000 extends into the first mounting hole 3265 through the first clearance groove to fix the module bracket 3 to the support surface 111. The provision of the first clearance hole 3263 provides installation space for the connection between the second support section 3262 and the support surface 111, reduces the difficulty of screwing the first fastener 6 into the support surface 111, and improves the installation efficiency of the module bracket 3 and the support surface 111. Meanwhile, compared to the first fastener 6 passing through the entire module bracket 3 from the top of the module bracket 3 and connecting to the support surface 111, the setting of the first clearance hole 3263 can effectively shorten the length of the first mounting hole 3265, shorten the length of the first fastener 6, save the material of the first fastener 6, and improve the stability of the connection between the first fastener 6 and the module bracket 3 and the support surface 111.

[0084] The support plate 31 is connected at the junction of the first support part 325 and the second support part 326. The first reinforcing plate 4 is connected to the first support part 325 and / or the second support part 326. That is, the first reinforcing plate 4 can be connected to the first support part 325 and the second support part 326 at the same time, or it can be connected only to the first support part 325, or only to the second support part 326. This application does not limit this.

[0085] In one embodiment of this application, the support member 32 further includes a second reinforcing plate 5, which is disposed on one side of the second support portion 326 and extends at least partially to the first support portion 325. The second reinforcing plate 5 is used to form a support between the first support portion 325 and the second support portion 326, thereby improving the stability of the connection between the first support portion 325 and the second support portion 326.

[0086] Please refer to Figure 10 When the battery pack 1000 is overcharged or short-circuited, the battery module 2 inside will experience thermal runaway. To reduce the impact of the runaway battery module 2 on other stacked battery modules 2, in one embodiment of this application, the module support 3 further includes an insulating layer 10, which is disposed on the surface of the support plate 31. The insulating layer 10 can be made of mica sheet, polyester film, or polytetrafluoroethylene; this application does not limit the material used.

[0087] The insulating layer 10 is used to increase the resistance between the runaway battery module 2 and other battery modules 2, thereby reducing the possibility of current breakdown between the runaway battery module 2 and other battery modules 2, and reducing the short circuit risk of the battery pack 1000. On the other hand, the insulating layer 10 can effectively slow down the heat transfer between the runaway battery module 2 and other battery modules 2, slow down the spread rate of thermal runaway of battery module 2 within the battery pack 1000 after thermal runaway, and improve the reliability of the battery pack 1000.

[0088] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications or equivalent substitutions made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A module bracket, wherein the module bracket is applied to a battery pack, the battery pack housing having a support surface, and the module bracket is used to support a battery module on the support surface, characterized in that, It includes a support plate, two support members, and a first reinforcing plate. The support plate is used to support the battery module. The support plate has a first end face and a second end face that are arranged opposite to each other along the length direction of the module support. Two support members are disposed on opposite sides of the support plate along the width direction of the module bracket, and the two support members are used to support the support plate on the support surface; The first reinforcing plate is disposed on one side of the first end face and / or the second end face, and is connected to the two support members.

2. The module bracket as described in claim 1, characterized in that, The support plate also includes a third end face and a fourth end face that are disposed opposite to each other along the height direction of the module bracket; The first reinforcing plate includes a limiting part and a connecting part. The connecting part is disposed on both sides of the limiting part along the width direction of the module bracket, and the connecting part is connected to the support member. The limiting portion, the third end face, and the two supporting members enclose a first mounting space, which is used to accommodate the first battery module; and / or The limiting part, the fourth end face, and the two supporting members surround and form a second installation space, which is used to accommodate the second battery module.

3. The module bracket as described in claim 1, characterized in that, The support member includes a first support portion and a second support portion connected to each other, and the first support portions of the two support members are arranged parallel to each other. The second support portion is used to contact the support surface, and the second support portions of the two support members are at least partially inclined in opposite directions to each other; The first reinforcing plate is connected to the first support portion and / or the second support portion.

4. The module bracket as described in claim 3, characterized in that, The second support includes a first support section and a second support section. The first support section is connected to the first support, and the first support sections of the two support members are inclined in opposite directions to each other. The second support segment is connected to the side of the first support segment away from the first support portion, and the second support segment is used to connect perpendicularly to the support surface.

5. The module bracket as described in claim 4, characterized in that, The first support section is provided with a first clearance hole; A portion of the structure of the second support section protrudes from the first clearance hole to form a mounting surface; the mounting surface is provided with a first mounting hole for a first fastener to pass through, so as to fix the module bracket to the support surface.

6. The module bracket as described in any one of claims 3-5, characterized in that, The support also includes a second reinforcing plate, which is disposed on one side of the second support portion and extends at least partially to the first support portion.

7. The module bracket as described in claim 1, characterized in that, The support plate is provided with a second clearance hole that extends through the height direction of the module bracket; The second clearance hole includes an intersecting first hole segment and a second hole segment; the first hole segment extends along the length direction of the module bracket, and the second hole segment extends along the width direction of the module bracket.

8. The module bracket as described in claim 1, characterized in that, The module bracket also includes an insulating layer, which is disposed on the surface of the support plate.

9. A battery pack, characterized in that, include: Box; A partition beam is disposed inside the housing and divides the housing into multiple cell cavities; the partition beam has a support surface. The module support as described in any one of claims 1-8, wherein the module support is disposed on the support surface; A first battery module is disposed in the first mounting space of the module bracket; The second battery module is disposed in the second mounting space of the module bracket.

10. An electrical appliance, characterized in that, Includes the battery pack as described in claim 9.

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