Module shell frame, battery module, battery and electric equipment
By using clamped connections on the battery module frame plate, the problems of high defect rate and high cost caused by welding defects are solved, and stable connection and cost savings are achieved.
Patent Information
- Application Number
- CN202420344437.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-02-23
AI Technical Summary
In the prior art, welding defects are easily found in the battery module frame plate through welding connection, resulting in high defect rate and high investment and manufacturing costs of welding equipment.
The clamping connection method is adopted, and by setting the clamp hook and the clamp slot on the adjacent frame plate, the stable connection of the frame plate is achieved and welding defects are avoided.
It improves the yield of module shell frames, reduces production costs and investment in welding equipment, and simplifies the installation process.
Smart Images
Figure CN223124045U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of battery technology, and in particular to a module housing frame, a battery module, a battery, and an electrical device. Background Art
[0002] In the related art, a battery module includes a plurality of frame plates, and adjacent two frame plates are usually connected by welding. However, welding defects are likely to occur during the welding connection, such as blowholes, welding deviation, soldering voids, and undercutting, which may lead to a high defect rate of the module housing frame during the production process, and the welding connection requires the investment of welding equipment and welding manufacturing costs. Summary of the Utility Model
[0003] In view of the above problems, the present application provides a module housing frame, a battery module, and a battery, which can improve the yield of the module housing frame during the production process, and can also save the investment of welding equipment and welding manufacturing costs during the production process.
[0004] In a first aspect, the present application provides a module housing frame of a battery module, including: a plurality of frame plates connected in sequence end to end, and adjacent two of the frame plates are connected by snap connection.
[0005] In the above technical solution, adjacent two frame plates of the module housing frame are connected by snap connection. The snap connection method will not have welding defects such as blowholes and soldering voids during welding connection, which can improve the yield of the module housing frame during the production process; and the snap connection method is simple and has low manufacturing cost, which can save the investment of welding equipment and welding manufacturing costs during the production process.
[0006] In some embodiments, one of the adjacent two frame plates is provided with a catch and the other is provided with a slot, and the catch is snapped into the slot.
[0007] In the above technical solution, by providing a catch on one of the adjacent two frame plates and a slot on the other, and snapping the catch into the slot, a snap connection relationship can be conveniently formed between the adjacent two frame plates; and the connection operation of the catch and the slot is simple and easy to install.
[0008] In some embodiments, the slot is provided on one side of the frame plate along the wall thickness direction of the frame plate.
[0009] In the above technical solution, by making the slot be provided on one side of the frame plate along the wall thickness direction of the frame plate, the slot is easy to form, and the slot can be conveniently snap-connected with the catch.
[0010] In some embodiments, the slot is formed on the outer side wall of the frame plate.
[0011] In the above technical solution, by forming the card slot on the outer side wall of the frame plate, the card slot is exposed on the outer side of the frame plate, which is more convenient for snapping the card hook into the card slot or for disassembling the card hook from the card slot, and it can prevent the components located inside the frame plate from interfering with the assembly and disassembly of the card hook and the card slot.
[0012] In some embodiments, the card slot extends along the axial direction of the module housing frame.
[0013] In the above technical solution, by making the card slot extend along the axial direction of the module housing frame, it is convenient for the card slot and the card hook to form a snap connection relationship along the axial direction, which is beneficial to the stable connection between the card hook and the card slot, and thus beneficial to the stable connection between two adjacent frame plates.
[0014] In some embodiments, the card slot penetrates through two end faces of the frame plate along the axial direction of the module housing frame.
[0015] In the above technical solution, by making the card slot penetrate through two end faces of the frame plate along the axial direction of the module housing frame, there is a card slot between one end face and the other end face of the frame plate along the axial direction. After snapping the card hook into the card slot, there is a snap connection relationship between two adjacent frame plates between one end face and the other end face along the axial direction, and the connection positions of two adjacent frame plates are uniformly continuous in the entire axial direction, which is beneficial to further improving the connection stability between two adjacent frame plates.
[0016] In some embodiments, the card hook includes a connecting portion and a hook portion. The connecting portion is connected between the hook portion and the frame plate. The hook portion is received in the card slot, and the connecting portion is in contact and cooperation with the outer side wall of the frame plate.
[0017] In the above technical solution, by making the card hook include a connecting portion and a hook portion, and making the connecting portion in contact and cooperation with the outer side wall of the frame plate, the connecting portion can enhance the structural strength of the card hook, and the outer side wall of the frame plate can form a supporting effect on the connecting portion, which is beneficial to further enhancing the connection strength between the card hook and the card slot, and preventing the damage of the card hook caused by collision or the like and avoiding the adverse effects on the connection relationship between two adjacent frame plates, such as the connection relationship being damaged or unstable.
[0018] In some embodiments, along the circumferential direction of the module housing frame, the card slot has a first limiting wall and a second limiting wall arranged oppositely. The first limiting wall is closer to the connecting portion than the second limiting wall. The first limiting wall is received in the space defined by the hook portion and the connecting portion. In the wall thickness direction of the frame plate, the second limiting wall is higher than the first limiting wall.
[0019] In the above technical solution, by providing the first limiting wall and the second limiting wall, the first limiting wall and the second limiting wall limit the hook in the circumferential direction, which can prevent the hook from disengaging from the card slot in the circumferential direction; by accommodating the first limiting wall in the space defined by the hook portion and the connecting portion, the first limiting wall and the hook are limited to each other in the circumferential direction, which is beneficial to the stable connection between the card slot and the hook. By making the second limiting wall higher than the first limiting wall in the wall thickness direction of the frame plate, the first limiting wall can avoid the hook, facilitating the smooth engagement of the hook into the card slot from one side of the first limiting wall.
[0020] In some embodiments, in the wall thickness direction of the frame plate, the second limiting wall is higher than the hook portion.
[0021] In the above technical solution, by making the second limiting wall higher than the hook portion in the wall thickness direction of the frame plate, it is convenient for the hook portion to be entirely engaged into the card slot in the wall thickness direction of the frame plate. The clamping connection area between the card slot and the hook is relatively large, making it difficult for the hook to disengage from the card slot, which is beneficial to the stable connection between the frame plates. Additionally, it can prevent the hook portion from being easily deformed or damaged due to collision because it is higher than the second limiting wall in the wall thickness direction of the frame plate.
[0022] In some embodiments, at least a part of the connecting portion extends in an arc in the circumferential direction of the module housing frame. The part of the frame plate that is in contact and cooperation with the connecting portion is the cooperating portion, and at least a part of the cooperating portion extends in an arc in the circumferential direction of the module housing frame.
[0023] In the above technical solution, by making at least a part of the connecting portion extend in an arc in the circumferential direction and making at least a part of the cooperating portion that is in contact and cooperation with the connecting portion extend in an arc in the circumferential direction, the extending trends of the connecting portion and the cooperating portion are consistent, and the connecting portion and the cooperating portion are more adaptable. As a result, the cooperating portion can better support the connecting portion, which is beneficial to further improving the connection strength between the hook and the card slot. Additionally, the arc-shaped extending part of the connecting portion can reduce stress concentration, which is beneficial to improving the connection strength and stability between the hook portion and the frame plate, and also facilitates the installation of multiple frame plates of the module housing frame, avoiding increasing the difficulty of installation operations due to the presence of sharp edges or corners.
[0024] In some embodiments, the hook and the frame plate are integrally formed.
[0025] In the above technical solution, by integrating the hook with the frame plate, the connection operation between the hook and the frame plate can be reduced, which is beneficial to improving production efficiency; and the stress concentration between the hook and the frame plate can be reduced, making the connection strength between the hook and the frame plate uniform, so as to reduce or avoid defects such as cracking and fracture between the hook and the frame plate and the adverse effects of these defects on the connection relationship between the frame plates, which is beneficial to improving the stability of the connection relationship between the frame plates.
[0026] In some embodiments, the multiple frame plates include two end plates and two side plates, the end plates and the side plates are alternately arranged in the circumferential direction of the module housing frame, and an installation groove for installing the output pole base is formed on the end plate.
[0027] In the above technical solution, by forming an installation groove for installing the output pole base on the end plate, the installation groove can limit the output pole base, facilitating the accurate and stable installation of the output pole base on the end plate; and it is also convenient for the output pole of the battery module to be led out through the end plate.
[0028] In some embodiments, the wall thickness of the end plate is greater than that of the side plate, a card slot is provided on the end plate, and a hook is provided on the side plate, and the hook is snapped into the card slot.
[0029] In the above technical solution, by making the wall thickness of the end plate greater than that of the side plate, the end plate can meet the wall thickness requirements for opening the card slot, which is convenient for opening the card slot on the end plate, and can also reduce the influence of the card slot on the structural strength of the end plate, and make the end plate itself and the card slot have higher structural strength.
[0030] In a second aspect, the present application provides a battery module, including: the module housing frame of the first aspect of the present application; a battery pack including a plurality of battery cells and disposed within the module housing frame.
[0031] In the above technical solution, by making the battery module include the above-mentioned module housing frame, the yield of the module housing frame in the production process can be improved, and the investment in welding equipment and welding manufacturing costs in the production process can also be saved, which is beneficial to improving the yield of the battery module in the production process and reducing the production cost of the battery module.
[0032] In a third aspect, the present application provides a battery, including: the battery module of the second aspect of the present application.
[0033] In the above technical solution, by providing the above-mentioned battery module, the adjacent two frame plates of the module housing frame of the battery module are connected by snap connection, which is beneficial to improving the yield of the module housing frame in the production process and saving the investment in welding equipment and welding manufacturing costs, thereby being beneficial to improving the yield of the battery and reducing the production cost of the battery.
[0034] Fourthly, the present application provides an electrical device, including: a battery according to the third aspect of the present application.
[0035] In the above technical solution, by providing the above battery, the yield rate in the battery production process is relatively high and the production cost is reduced, which is conducive to improving the yield rate in the production process of the electrical device and reducing the production cost of the electrical device.
[0036] The additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. Description of the Drawings
[0037] The above and / or additional aspects and advantages of the present application will become apparent and be easily understood from the description of the embodiments in conjunction with the following drawings, where:
[0038] Figure 1 is a schematic perspective view of a module housing frame according to some embodiments of the present application;
[0039] Figure 2 is Figure 1 an enlarged view of part A in
[0040] Figure 3 is Figure 1 an exploded view of the module housing frame in
[0041] Figure 4 is Figure 1 the front view of the module housing frame in
[0042] Figure 5 is Figure 1 the top view of the module housing frame in
[0043] Figure 6 is Figure 5 an enlarged view of part B in
[0044] Figure 7 is Figure 1 the side view of the module housing frame in
[0045] Figure 8 is Figure 1 a schematic perspective view of an end plate in
[0046] Figure 9 is Figure 1 the front view of the end plate in
[0047] Figure 10 is Figure 1 the top view of the end plate in
[0048] Figure 11 is Figure 1 the side view of the end plate in
[0049] Figure 12 is Figure 1 a schematic three - dimensional structure diagram of the side plate in
[0050] Figure 13 is Figure 1 the front view of the side plate in
[0051] Figure 14 is Figure 1 the top view of the side plate in
[0052] Figure 15 is Figure 1 the side view of the side plate in
[0053] Figure 16 a schematic diagram of an electrical device according to some embodiments of the present application.
[0054] Reference numerals:
[0055] 100, module housing frame;
[0056] 1, frame plate; 11, outer side wall; 12, fitting portion; 13, end plate; 131, mounting groove; 14, side plate;
[0057] 2, hook; 21, connecting portion; 22, hook portion;
[0058] 3, card slot; 31, first limiting wall; 32, second limiting wall;
[0059] 1000, electrical device. Detailed implementation manners
[0060] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.
[0061] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above - mentioned drawings are intended to cover non - exclusive inclusion. The terms "first", "second", etc. in the specification and claims of the present application or the above - mentioned drawings are used to distinguish different objects and are not used to describe a specific order or primary - secondary relationship.
[0062] In this application, the mention of "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of this application. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.
[0063] In the description of this application, it should be noted that unless otherwise clearly specified and defined, the terms "install", "connect", "link", "attach" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0064] The term "and / or" in this application is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally represents an "or" relationship between the associated objects before and after.
[0065] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of this application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only for illustrative purposes and should not constitute any limitation to this application.
[0066] The "plurality" mentioned in this application refers to two or more (including two).
[0067] In this application, the battery module is a core component of the battery. The battery module can include at least one battery cell, and the battery can include at least one battery module.
[0068] In this application, the battery can include a box body for encapsulating one or more battery modules. The box body can prevent liquids or other foreign objects from affecting the charging or discharging of the battery cells. Of course, there are also some batteries that do not include the above box body. The battery can be formed by fixing and installing a plurality of battery modules side by side in the box body of the battery.
[0069] In this application, the battery cell may include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery, a magnesium-ion battery, etc., and the embodiments of this application are not limited thereto. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes, and the embodiments of this application are not limited thereto either. Generally, the battery cell is divided into three types according to the encapsulation method: cylindrical battery, square battery, and soft-pack battery, and the embodiments of this application are not limited thereto either.
[0070] Currently, from the perspective of the development of the market situation, the application of batteries is becoming more and more extensive. Batteries are not only applied to energy storage power systems such as hydropower, thermal power, wind power, and solar power stations, but also widely applied to electric transportation tools such as electric bicycles, electric motorcycles, and electric vehicles, as well as multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of power batteries, the market demand for them is also continuously increasing.
[0071] The inventor noticed that in the related art, the battery module includes a plurality of frame plates, and adjacent two frame plates are usually connected by welding. However, welding connection is prone to welding defects such as blowholes, welding deviation, false welding, and undercut, which may lead to a high defective rate of the battery module during the production process, and welding equipment investment and welding manufacturing costs are required for welding connection.
[0072] Based on this, the applicant proposes a module housing frame of a battery module, including: a plurality of frame plates connected in sequence end to end, and adjacent two frame plates are connected by snap connection.
[0073] In the above-mentioned module housing frame of the battery module, adjacent two frame plates of the module housing frame are connected by snap connection. The snap connection method will not have welding defects such as blowholes and false welding during welding connection, which can improve the yield of the module housing frame during the production process; and the snap connection method is simple and has low manufacturing cost, which can save the investment in welding equipment and welding manufacturing costs during the production process.
[0074] The battery module disclosed in the embodiments of this application can be used in electrical equipment using a battery as a power source or various energy storage systems using a battery as an energy storage element. The electrical equipment can be, but is not limited to, mobile phones, tablets, laptop computers, electric toys, power tools, battery cars, electric vehicles, ships, spacecraft, etc. Among them, the electric toy can include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys, and electric aircraft toys, etc., and the spacecraft can include airplanes, rockets, space shuttles, and spaceships, etc.
[0075] Next, refer to Figures 1 - 13 Describe the module housing frame 100 according to the embodiments of this application.
[0076] Refer to Figures 1 - 7, in a first aspect, the present application provides a module housing frame 100 for a battery module, including: a plurality of frame plates 1 connected end to end in sequence, and two adjacent frame plates 1 are connected by snap connection.
[0077] Optionally, the module housing frame 100 may include four frame plates 1 arranged alternately in the circumferential direction. The four frame plates 1 are respectively a first frame plate 1, a second frame plate 1, a third frame plate 1, and a fourth frame plate 1. Among them, the first frame plate 1 and the third frame plate 1 are oppositely arranged along a first direction (shown in the e1 direction in the reference figure), and the second frame plate 1 and the fourth frame plate 1 are oppositely arranged along a second direction (shown in the e2 direction in the reference figure).
[0078] For example, the connection process of the four frame plates 1 is as follows: first, snap-connect the first frame plate 1 and the second frame plate 1, then snap-connect the third frame plate 1 and the second frame plate 1, then snap-connect the third frame plate 1 and the fourth frame plate 1, and finally snap-connect the fourth frame plate 1 and the first frame plate 1.
[0079] For example, the connection process of the four frame plates 1 is as follows: first, place the first frame plate 1 and the third frame plate 1 opposite and side by side along the first direction, then respectively snap-connect one end and the other end of the second frame plate 1 in the first direction to the first frame plate 1 and the third frame plate 1, and then respectively snap-connect one end and the other end of the fourth frame plate 1 in the first direction to the first frame plate 1 and the third frame plate 1; in an alternative manner, after placing the first frame plate 1 and the third frame plate 1 side by side along the first direction, an extrusion force can be applied to the first frame plate 1 and the second frame plate 1 along the first direction to facilitate the snap connection of the second frame plate 1 and the fourth frame plate 1.
[0080] In the above technical solution, two adjacent frame plates 1 of the module housing frame 100 are connected by snap connection. The snap connection method will not have welding defects such as blowholes and false soldering during welding connection, which can improve the yield of the module housing frame 100 during the production process; and the snap connection method is simple and has a low manufacturing cost, which can save the investment in welding equipment and welding manufacturing cost during the production process.
[0081] Reference Figures 1 - 3 , in some embodiments, a snap hook 2 is provided on one of two adjacent frame plates 1 and a card slot 3 is provided on the other, and the snap hook 2 is snapped into the card slot 3.
[0082] Optionally, the module housing frame 100 includes four frame plates 1 arranged alternately in the circumferential direction. The four frame plates 1 are respectively a first frame plate 1, a second frame plate 1, a third frame plate 1, and a fourth frame plate 1. Among them, the first frame plate 1 and the third frame plate 1 are oppositely arranged along a first direction (shown in the direction of e1 in the reference figure), and the second frame plate 1 and the fourth frame plate 1 are oppositely arranged along a second direction (shown in the direction of e2 in the reference figure). Among them, hooks 2 are provided on the first frame plate 1 and the third frame plate 1, and slots 3 are provided on the second frame plate 1 and the fourth frame plate 1; or slots 3 are provided on the first frame plate 1 and the third frame plate 1, and hooks 2 are provided on the second frame plate 1 and the fourth frame plate 1.
[0083] In the above technical solution, by providing a hook 2 on one of two adjacent frame plates 1 and a slot 3 on the other, and by snapping the hook 2 into the slot 3, a snap connection relationship can be easily formed between the two adjacent frame plates 1; and the connection operation of the hook 2 and the slot 3 is simple and easy to install.
[0084] Reference Figures 8 - 11 , in some embodiments, a slot 3 is provided on one side of the frame plate 1 in the wall thickness direction of the frame plate 1.
[0085] Optionally, slots 3 are provided at both ends in the length direction of the frame plate 1.
[0086] In the above technical solution, by providing a slot 3 on one side of the frame plate 1 in the wall thickness direction of the frame plate 1, the slot 3 is easy to form, and the slot 3 can be easily snap-connected with the hook 2.
[0087] Reference Figures 8 - 9 , in some embodiments, the slot 3 is formed on the outer side wall 11 of the frame plate 1.
[0088] In the above technical solution, by forming the slot 3 on the outer side wall 11 of the frame plate 1, the slot 3 is exposed on the outside of the frame plate 1, which is more convenient for snapping the hook 2 into the slot 3 or for disassembling the hook 2 from the slot 3, and can prevent the components located inside the frame plate 1 from interfering with the disassembly and assembly of the hook 2 and the slot 3.
[0089] Reference Figures 8 - 9 , in some embodiments, the slot 3 extends along the axial direction of the module housing frame 100 (shown in the direction of e3 in the reference figure). Among them, the multiple frame plates 1 of the module housing frame 100 are connected end to end in the circumferential direction, and the axial direction of the module housing frame 100 is perpendicular to the circumferential direction of the module housing frame 100.
[0090] In the above technical solution, by making the slot 3 extend along the axial direction of the module housing frame 100, it is convenient for the slot 3 and the hook 2 to form a snap connection relationship along the axial direction, which is beneficial to the stable connection of the hook 2 and the slot 3, and thus beneficial to the stable connection of two adjacent frame plates 1.
[0091] Reference Figures 8 - 11 , in some embodiments, the card slot 3 penetrates through two end faces of the frame plate 1 along the axial direction of the module housing frame 100.
[0092] For example, the catch 2 can slide relative to the card slot 3 along the axial direction from one end of the frame plate 1 towards the other end, so that the catch 2 is snapped into the chute. For example, the catch 2 can be snapped into the card slot 3 along the wall thickness direction of the frame plate 1.
[0093] In the above technical solution, by making the card slot 3 penetrate through two end faces of the frame plate 1 along the axial direction of the module housing frame 100, there is a card slot 3 between one end face and the other end face of the frame plate 1 along the axial direction. After the catch 2 is snapped into the card slot 3, there is a clamping connection between two adjacent frame plates 1 between one end face and the other end face along the axial direction, and the connection positions of two adjacent frame plates 1 are uniformly continuous in the entire axial direction, which is beneficial to further improving the connection stability between two adjacent frame plates 1.
[0094] Reference Figures 12 - 15 , in some embodiments, the catch 2 includes a connecting portion 21 and a hook portion 22. The connecting portion 21 is connected between the hook portion 22 and the frame plate 1. The hook portion 22 is received in the card slot 3, and the connecting portion 21 is in contact and cooperation with the outer side wall 11 of the frame plate 1.
[0095] In the above technical solution, by making the catch 2 include a connecting portion 21 and a hook portion 22, and making the connecting portion 21 in contact and cooperation with the outer side wall 11 of the frame plate 1, the connecting portion 21 can enhance the structural strength of the catch 2, and the outer side wall 11 of the frame plate 1 can form a supporting effect on the connecting portion 21, which is beneficial to further enhancing the connection strength between the catch 2 and the card slot 3, avoiding damage to the catch 2 caused by collision, etc., and avoiding adverse effects on the connection relationship between two adjacent frame plates 1, such as the connection relationship being damaged or the connection relationship being unstable.
[0096] Reference Figures 5 - 6 , in some embodiments, along the circumferential direction of the module housing frame 100, the card slot 3 has a first limiting wall 31 and a second limiting wall 32 which are oppositely arranged. The first limiting wall 31 is closer to the connecting portion 21 than the second limiting wall 32. The first limiting wall 31 is received in the space defined by the hook portion 22 and the connecting portion 21. In the wall thickness direction of the frame plate 1, the second limiting wall 32 is higher than the first limiting wall 31.
[0097] For example, when the catch 2 is snapped into the card slot 3, the catch 2 is snapped into the card slot 3 from one side of the first limiting wall 31. After the catch 2 is snapped into the card slot 3, the hook portion 22 of the catch 2 is located between the first limiting wall 31 and the second limiting wall 32.
[0098] In the above technical solution, by providing the first limiting wall 31 and the second limiting wall 32, the first limiting wall 31 and the second limiting wall 32 limit the hook 2 in the circumferential direction, which can prevent the hook 2 from disengaging from the slot 3 in the circumferential direction; by accommodating the first limiting wall 31 in the space defined by the hook portion 22 and the connecting portion 21, the first limiting wall 31 and the hook 2 are mutually limited in the circumferential direction, all of which are conducive to the stable connection between the slot 3 and the hook 2. By making the second limiting wall 32 higher than the first limiting wall 31 in the wall thickness direction of the frame plate 1, the first limiting wall 31 can avoid the hook 2, facilitating the smooth engagement of the hook 2 into the slot 3 from one side of the first limiting wall 31.
[0099] Reference Figures 5 - 6 , in some embodiments, in the wall thickness direction of the frame plate 1, the second limiting wall 32 is higher than the hook portion 22.
[0100] In the above technical solution, by making the second limiting wall 32 higher than the hook portion 22 in the wall thickness direction of the frame plate 1, it is convenient for the hook portion 22 to be entirely engaged into the slot 3 in the wall thickness direction of the frame plate 1. The clamping connection area between the slot 3 and the hook 2 is relatively large, making it difficult for the hook 2 to disengage from the slot 3, which is conducive to the stable connection between the frame plates 1. Additionally, it can also prevent the hook portion 22 from being easily deformed or damaged due to being higher than the second limiting wall 32 in the wall thickness direction of the frame plate 1 and being prone to collision.
[0101] Reference Figures 1 - 6 , in some embodiments, at least a part of the connecting portion 21 extends in an arc in the circumferential direction of the module housing frame 100. The part of the frame plate 1 in contact and cooperation with the connecting portion 21 is the cooperating portion 12, and at least a part of the cooperating portion 12 extends in an arc in the circumferential direction of the module housing frame 100.
[0102] In the above technical solution, by making at least a part of the connecting portion 21 extend in an arc in the circumferential direction and at least a part of the cooperating portion 12 in contact and cooperation with the connecting portion 21 extend in an arc in the circumferential direction, the extension trends of the connecting portion 21 and the cooperating portion 12 are consistent, and the connecting portion 21 and the cooperating portion 12 are more adaptable. Thus, the cooperating portion 12 can better support the connecting portion 21, which is conducive to further improving the connection strength between the hook 2 and the slot 3. Additionally, the arcuately extending part of the connecting portion 21 can also reduce stress concentration, which is beneficial to improving the connection strength and stability between the hook portion 22 and the frame plate 1, and also facilitates the installation of multiple frame plates 1 of the module housing frame 100, avoiding increasing the difficulty of the installation operation due to the existence of sharp edges or corners.
[0103] Reference Figure 10 , in some embodiments, the hook 2 and the frame plate 1 are integrally formed.
[0104] In the above technical solution, by integrally forming the catch 2 with the frame plate 1, the connection operation between the catch 2 and the frame plate 1 can be reduced, which is beneficial to improving the production efficiency; and the stress concentration between the catch 2 and the frame plate 1 can be reduced, making the connection strength between the catch 2 and the frame plate 1 uniform, so that defects such as cracking and fracture between the catch 2 and the frame plate 1 can be reduced or avoided, as well as the adverse effects of these defects on the connection relationship between the frame plates 1, which is beneficial to improving the stability of the connection relationship between the frame plates 1.
[0105] Reference Figures 1 - 3 , in some embodiments, the plurality of frame plates 1 includes two end plates 13 and two side plates 14. The end plates 13 and the side plates 14 are alternately arranged in the circumferential direction of the module housing frame 100, and an installation groove 131 for installing the output pole base is formed on the end plate 13.
[0106] In the above technical solution, by forming the installation groove 131 for installing the output pole base on the end plate 13, the installation groove 131 can limit the output pole base, facilitating the accurate and stable installation of the output pole base on the end plate 13; it also facilitates the output pole of the battery module to be led out through the end plate 13.
[0107] Reference Figures 1 - 6 , in some embodiments, the wall thickness of the end plate 13 is greater than the wall thickness of the side plate 14. A card slot 3 is provided on the end plate 13, and a catch 2 is provided on the side plate 14. The catch 2 is snapped into the card slot 3.
[0108] In the above technical solution, by making the wall thickness of the end plate 13 greater than the wall thickness of the side plate 14, the end plate 13 can meet the wall thickness requirement for opening the card slot 3, which facilitates opening the card slot 3 on the end plate 13, can also reduce the influence of the card slot 3 on the structural strength of the end plate 13, and enables the end plate 13 itself and the card slot 3 to have relatively high structural strength.
[0109] In a second aspect, the present application provides a battery module, including: the above-mentioned module housing frame 100 and a battery pack. The battery pack includes a plurality of battery cells and is disposed inside the module housing frame 100.
[0110] In the above technical solution, by making the battery module include the above-mentioned module housing frame 100, the yield of the module housing frame 100 during the production process can be improved, and the investment in welding equipment and welding manufacturing costs during the production process can also be saved, which is beneficial to improving the yield of the battery module during the production process and reducing the production cost of the battery module.
[0111] In a third aspect, the present application provides a battery, including the above-mentioned battery module.
[0112] In the above technical solution, by providing the above battery module, two adjacent frame plates 1 of the module housing frame 100 of the battery module are connected by snap connection, which is beneficial to improving the yield of the module housing frame 100 in the production process and saving the investment in welding equipment and welding manufacturing costs, thereby being beneficial to improving the yield of the battery and reducing the production cost of the battery.
[0113] Reference Figure 16 , in a fourth aspect, the present application provides an electrical device 1000, including: a battery according to the third aspect of the present application.
[0114] In the above technical solution, by providing the above battery, the yield in the battery production process is relatively high and the production cost is reduced, thereby being beneficial to improving the yield in the production process of the electrical device 1000 and reducing the production cost of the electrical device 1000.
[0115] Next, reference will be made to Figures 1 - 15 to describe the module housing frame 100 of some embodiments of the present application.
[0116] Reference Figures 1 - 15 , in this embodiment, the module housing frame 100 of the battery module includes a plurality of frame plates 1, the plurality of frame plates 1 are sequentially connected end to end, the plurality of frame plates 1 include two end plates 13 and two side plates 14, and the end plates 13 and the side plates 14 are alternately arranged in the circumferential direction of the module housing frame 100.
[0117] A clamping groove 3 is formed in the end plate 13 along the wall thickness direction of the end plate 13, the clamping groove 3 is formed on the outer side wall 11 of the end plate 13, and the clamping groove 3 is located at both ends of the end plate 13 along the length direction of the end plate 13. The clamping groove 3 extends along the axial direction of the module housing frame 100, and the clamping groove 3 penetrates through two cross-sections of the frame plate 1 along the axial direction of the module housing frame 100. Along the circumferential direction of the module housing frame 100, the clamping groove 3 has a first limiting wall 31 and a second limiting wall 32 which are oppositely arranged, and in the wall thickness direction of the frame plate 1, the second limiting wall 32 is higher than the first limiting wall 31.
[0118] Hook members 2 are provided on the side plates 14, the hook members 2 are located at both ends of the side plates 14 along the length direction of the side plates 14, the hook members 2 include a connecting portion 21 and a hook portion 22, the connecting portion 21 is connected between the hook portion 22 and the frame plate 1, and a part of the connecting portion 21 extends in an arc shape in the circumferential direction of the module housing frame 100.
[0119] The hook 2 is snap-fitted to the slot 3. Specifically, the hook portion 22 of the hook 2 is received in the slot 3. The first limiting wall 31 of the slot 3 is closer to the connecting portion 21 than the second limiting wall 32. The first limiting wall 31 is received in the space defined by the hook portion 22 and the connecting portion 21. The height of the second limiting wall 32 in the thickness direction of the end plate 13 is higher than that of the hook portion 22. The end plate 13 includes a mating portion 12 that is in contact and cooperation with the connecting portion 21. A part of the mating portion 12 extends in an arc in the circumferential direction of the module housing frame 100. The connecting portion 21 is in contact and cooperation with the outer side wall 11 of the mating portion 12 of the end plate 13.
[0120] The two end plates 13 are arranged oppositely along the first direction, and the two side plates 14 are arranged oppositely along the second direction. The hooks 2 on the two side plates 14 are respectively snap-fitted into the slots 3 on the two side plates 14. The end plate 13 and the side plate 14 are snap-connected through the slot 3 and the hook 2.
[0121] In the description of this specification, the descriptions of reference terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0122] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application. The scope of the present application is defined by the claims and their equivalents.
Claims
1. A battery module, characterized in that, Comprising: A module housing frame, comprising a plurality of frame plates sequentially connected end to end, and two adjacent frame plates are snap-connected; A battery pack, comprising a plurality of battery cells and disposed within the module housing frame.
2. The battery module according to claim 1, wherein One of two adjacent frame plates is provided with a catch, and the other is provided with a slot, and the catch is snapped into the slot.
3. The battery module according to claim 2, wherein, The slot is provided on one side of the frame plate in the wall thickness direction of the frame plate.
4. The battery module according to claim 3, wherein The slot is formed on the outer side wall of the frame plate.
5. The battery module according to claim 4, wherein The slot extends in the axial direction of the module housing frame.
6. The battery module according to claim 5, characterized in that, The slot penetrates through two end faces of the frame plate in the axial direction of the module housing frame.
7. The battery module according to claim 5, wherein The catch comprises a connecting portion and a hook portion, the connecting portion is connected between the hook portion and the frame plate, the hook portion is received within the slot, and the connecting portion is in contact and cooperation with the outer side wall of the frame plate.
8. The battery module according to claim 7, wherein In the circumferential direction of the module housing frame, the slot has a first limiting wall and a second limiting wall disposed opposite to each other, the first limiting wall is closer to the connecting portion than the second limiting wall, the first limiting wall is received within the space defined by the hook portion and the connecting portion, and in the wall thickness direction of the frame plate, the second limiting wall is higher than the first limiting wall.
9. The battery module according to claim 8, wherein, In the wall thickness direction of the frame plate, the second limiting wall is higher than the hook portion.
10. The battery module according to claim 7, characterized in that, At least a part of the connecting portion extends in an arc in the circumferential direction of the module housing frame, the part of the frame plate in contact and cooperation with the connecting portion is a cooperating portion, and at least a part of the cooperating portion extends in an arc in the circumferential direction of the module housing frame.
11. The battery module according to any one of claims 2-10, characterized in that, The catch and the frame plate are integrally formed.
12. The battery module according to claim 1, wherein, The plurality of frame plates include two end plates and two side plates, the end plates and the side plates are alternately arranged in the circumferential direction of the module housing frame, and an installation groove for installing an output pole base is formed on the end plate.
13. The battery module according to claim 12, characterized in that, The wall thickness of the end plate is greater than that of the side plate, the end plate is provided with a slot, the side plate is provided with a catch, and the catch is snapped into the slot.
14. A battery, characterized in that, Comprising: The battery module according to any one of claims 1-13.
15. An electrical device, characterized in that, Comprising: The battery according to claim 14.