Battery controller and shell thereof

Abstract

The utility model relates to the technical field of batteries, and discloses a battery controller and a shell thereof, and the shell comprises a shell body which is internally provided with a containing cavity with an opening; in the accommodating cavity, the shell comprises a first connecting part and a first reinforcing part which are convexly arranged towards the opening; the cover body is connected to the side, provided with the opening, of the shell and covers the opening; the cover body comprises a second connecting part and a second reinforcing part which are convexly arranged towards the accommodating cavity; wherein the first connecting part and the second connecting part are opposite to each other and are connected so as to clamp and fix the circuit board; the first connecting part is provided with a first end face used for abutting against the circuit board, and the second connecting part is provided with a second end face used for abutting against the circuit board. The first reinforcing part and the second reinforcing part are oppositely arranged, the first reinforcing part protrudes out of the second end face, or the second reinforcing part protrudes out of the first end face. According to the technical scheme of the utility model, the first reinforcing part and the second reinforcing part can support each other, thereby reducing the collapse risk of the housing, and improving the protection effect on the circuit board.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a battery controller and its housing. Background Technology

[0002] The battery controller is a crucial component of a power battery assembly, enabling it to monitor and manage the battery. A battery controller typically includes a housing made of materials such as metal or plastic, a circuit board mounted within the housing, and several connectors integrated onto the circuit board.

[0003] As product functions increase, the information interaction between battery controllers and various external systems becomes more complex, integrating more functions and increasing in size. However, the housing of the battery controller is a hollow structure, and the larger its size, the more easily the housing is deformed and collapsed due to external forces during assembly or application, damaging the internal circuit boards. Utility Model Content

[0004] In view of this, the present invention provides a battery controller and its housing to solve the problem that the housing of the battery controller is prone to deformation and collapse, which damages the internal circuit board.

[0005] In a first aspect, the present invention provides a housing for use in a battery controller. The housing includes: a shell having an opening forming a receiving cavity; within the receiving cavity, the shell includes a first connecting portion and a first reinforcing portion protruding toward the opening; a cover connected to the side of the shell having the opening and covering the opening; the cover includes a second connecting portion and a second reinforcing portion protruding toward the receiving cavity; wherein the first connecting portion and the second connecting portion are opposite to and connected to each other for clamping and fixing a circuit board; the first connecting portion has a first end face for abutting against the circuit board, and the second connecting portion has a second end face for abutting against the circuit board; the first reinforcing portion and the second reinforcing portion are disposed opposite to each other, with the first reinforcing portion protruding from the second end face, or the second reinforcing portion protruding from the first end face.

[0006] In one optional embodiment, the housing includes a bottom plate and a side plate extending circumferentially around the bottom plate, the bottom plate and the side plate together enclosing a receiving cavity; a plurality of first connecting portions, second connecting portions, first reinforcing portions and second reinforcing portions are provided; at least some of the first connecting portions and second connecting portions are circumferentially spaced around the side plate, and at least one first reinforcing portion is provided between two adjacent first connecting portions, and at least one second reinforcing portion is provided between two adjacent second connecting portions.

[0007] In one optional embodiment, the first reinforcing part is a strip-shaped reinforcing rib, which is connected between the bottom plate and the side plate.

[0008] In one optional embodiment, the second reinforcing part is a columnar reinforcing rib, and the first reinforcing part includes at least two strip-shaped reinforcing ribs spaced apart, with each of the at least two strip-shaped reinforcing ribs being opposite to the columnar reinforcing rib.

[0009] In one alternative embodiment, a recessed portion is formed at the end of the side panel away from the bottom plate, and the cover is embedded in the recessed portion; the cover includes a baffle extending circumferentially around the cover, the baffle being located at the edge of the cover and extending inside the side panel.

[0010] In one optional embodiment, the side plate is formed by two first side plates facing each other along a first direction and two second side plates facing each other along a second direction; within the receiving cavity, the bottom plate has two positioning parts protruding towards the opening; the two positioning parts are respectively arranged adjacent to the first side plate and the second side plate; wherein the first direction and the second direction intersect.

[0011] In one optional embodiment, both first side plates are provided with grooves, and the two grooves are staggered in the first direction; the cover is provided with protrusions on both sides along the first direction, and the two protrusions are respectively embedded in the two grooves.

[0012] In one alternative embodiment, outside the receiving cavity, the housing is provided with a plug-in portion; the plug-in portion is provided with a plug-in hole and a protrusion, the protrusion being located on one side of the plug-in hole.

[0013] In one alternative embodiment, a recess is provided on the side of the cover away from the receiving cavity, and a plurality of third reinforcing parts are provided in the recess.

[0014] Secondly, this utility model also provides a battery controller, including: a housing as described above; and a circuit board installed inside the housing.

[0015] The present invention provides two key advantages: First, the first and second reinforcing parts are arranged opposite to each other, allowing them to support each other under external force, thus reducing the risk of the casing collapsing. Second, when the casing and cover are connected, the circuit board is clamped and fixed between the first end face of the first connecting part and the second end face of the second connecting part. The first reinforcing part protrudes from the second end face, meaning it protrudes from the surface of the circuit board near the cover, or the second reinforcing part protrudes from the first end face, meaning it protrudes from the surface of the circuit board near the casing. This arrangement ensures that the first and second reinforcing parts contact each other first under external force, providing support and preventing the force from being transmitted to the circuit board when the casing or cover collapses, thereby protecting the circuit board and preventing damage. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a battery controller according to an embodiment of the present utility model;

[0018] Figure 2 This is an exploded view of a battery controller according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of a shell according to an embodiment of the present utility model;

[0020] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of a cover according to an embodiment of the present utility model;

[0022] Figure 6 This is a structural schematic diagram of a cover body from another perspective according to an embodiment of the present utility model;

[0023] Figure 7 This is a cross-sectional view of a battery controller according to an embodiment of the present utility model;

[0024] Figure 8 This is another cross-sectional view of a battery controller according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Shell; 10. Receiving cavity; 11. Base plate; 12. Side plate; 121. First side plate; 122. Second side plate; 13. First connecting part; 131. First end face; 14. First reinforcing part; 15. Countersunk part; 16. Positioning part; 17. Groove; 18. Insertion part; 181. Insertion hole; 182. Protrusion;

[0027] 2. Cover; 21. Second connecting part; 211. Second end face; 22. Second reinforcing part; 23. Baffle; 24. Protrusion; 25. Recess; 26. Third reinforcing part;

[0028] 3. Circuit board;

[0029] 4. Fasteners;

[0030] Y, first direction; X, second direction; Z, third direction. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] In recent years, the new energy industry has become a global focus, and the development of power batteries has grown rapidly. The demand for clean, low-carbon, and high-performance batteries is also increasing. The Battery Management System (BMS) is a crucial component of power batteries, capable of monitoring and managing them. The battery controller is one such end-user automotive electronic product. A battery controller typically includes a housing made of metal or plastic, a circuit board mounted inside the housing, and several connectors integrated onto the circuit board.

[0033] Currently, new energy vehicle battery packs require numerous battery management systems to monitor and manage the batteries. This necessitates the assembly of a large number of battery controllers. However, existing battery controller designs often lack assembly accuracy, frequently resulting in incorrect or reversed installations, thus reducing assembly efficiency. Furthermore, as vehicle functions increase, the information interaction between battery controllers and various external systems becomes more complex, leading to more integrated functions and larger dimensions. The increased size of existing battery controllers makes them more susceptible to deformation and collapse under external forces, potentially damaging the circuit boards installed within the casing and reducing application reliability. Moreover, the battery controller is a crucial link between the vehicle's powertrain and the electric vehicle, requiring safe operation and protection from external environmental influences. Therefore, enhanced dustproof and electrostatic discharge protection performance is essential.

[0034] Based on this, the present invention provides a battery controller and its housing to solve at least one of the above-mentioned problems.

[0035] The following is combined with Figures 1 to 8 The following describes embodiments of the present invention.

[0036] According to an embodiment of this utility model, a battery controller is provided. The battery controller includes a housing, a circuit board 3, and several connectors (not shown in the figure). The circuit board 3 is installed inside the housing, and the connectors are integrated on the circuit board 3. It is understood that the battery controller of this utility model is applied to electrical equipment, including but not limited to new energy vehicles, engineering equipment, etc., as long as the battery controller of this utility model can be used to achieve the function of monitoring and managing the power battery.

[0037] Specifically, the battery controller housing includes a housing 1 and a cover 2 connected together. A receiving cavity 10 with an opening is formed within the housing 1. Within the receiving cavity 10, the housing 1 includes a first connecting portion 13 and a first reinforcing portion 14 protruding towards the opening. The cover 2 is connected to the side of the housing 1 with the opening and covers the opening. The cover 2 includes a second connecting portion 21 and a second reinforcing portion 22 protruding towards the receiving cavity 10. The first connecting portion 13 and the second connecting portion 21 are opposite to and connected to each other for clamping and fixing a circuit board 3. The first connecting portion 13 has a first end face 131 for abutting against the circuit board 3, and the second connecting portion 21 has a second end face 211 for abutting against the circuit board 3. The first reinforcing portion 14 and the second reinforcing portion 22 are disposed opposite to each other, with the first reinforcing portion 14 protruding from the second end face 211, or the second reinforcing portion 22 protruding from the first end face 131.

[0038] In this embodiment, firstly, the first reinforcing part 14 and the second reinforcing part 22 are arranged opposite to each other. When subjected to external force, the first reinforcing part 14 and the second reinforcing part 22 can support each other, reducing the risk of the outer shell collapsing. Secondly, when the shell 1 and the cover 2 are connected, the circuit board 3 is clamped and fixed between the first end face 131 of the first connecting part and the second end face 211 of the second connecting part 21. The first reinforcing part 14 protrudes from the second end face 211, that is, the first reinforcing part 14 protrudes from the surface of the circuit board 3 near the cover 2, or the second reinforcing part 22 protrudes from the first end face 131, that is, the second reinforcing part 22 protrudes from the surface of the circuit board 3 near the shell 1. With this arrangement, when subjected to external force, the first reinforcing part 14 and the second reinforcing part 22 can make contact first, playing a supporting role and preventing the force from being transmitted to the circuit board 3 when the shell 1 or the cover 2 collapses, thereby achieving the purpose of protecting the circuit board 3 and preventing the circuit board 3 from being damaged.

[0039] For ease of description of the embodiments of this utility model, the length direction of the outer shell is defined as the first direction Y, the width direction as the second direction X, and the height direction as the third direction Z. The first direction Y, the second direction X, and the third direction Z all intersect. In some embodiments, the outer shell is generally cuboid in shape, and the first direction Y, the second direction X, and the third direction Z are all perpendicular to each other.

[0040] The housing 1 and the cover 2 are sequentially arranged and connected along a third direction Z, meaning the opening of the housing 1 is located on one side of the housing 1 in the third direction Z. The first connecting portion 13 and the first reinforcing portion 14 of the housing 1, and the second connecting portion 21 and the second reinforcing portion 22 of the cover 2 all extend along the third direction Z. In the third direction Z, the first connecting portion 13 and the second connecting portion 21 are positioned opposite each other, and the first reinforcing portion 14 and the second reinforcing portion 22 are positioned opposite each other. Furthermore, in the third direction Z, the first reinforcing portion 14 protrudes from the second end face 211, or the second reinforcing portion 22 protrudes from the first end face 131.

[0041] Specifically, in such Figure 7 In the illustrated embodiment, the first reinforcing part 14 protrudes from the second end face 211, that is, in the third direction Z, the first reinforcing part 14 protrudes from the surface of the circuit board 3 near the cover 2. At this time, in the third direction Z, the second reinforcing part 22 is located below the circuit board 3, and the distance between the second reinforcing part 22 and the first reinforcing part 14 in the third direction Z is smaller than the distance between the second reinforcing part 22 and the circuit board 3 in the third direction Z. This allows the first reinforcing part 14 and the second reinforcing part 22 to contact each other first when the outer shell is subjected to external force, so as to play a supporting role.

[0042] Of course, in some embodiments not shown in the figures, the second reinforcing part 22 may protrude from the first end face 131, that is, in the third direction Z, the second reinforcing part 22 protrudes from the surface of the circuit board 3 near the housing 1. In this case, in the third direction Z, the first reinforcing part 14 is located above the circuit board 3, and the distance between the first reinforcing part 14 and the second reinforcing part 22 in the third direction Z is smaller than the distance between the first reinforcing part 14 and the circuit board 3 in the third direction Z. This also achieves the purpose of the first reinforcing part 14 and the second reinforcing part 22 contacting each other first to provide support when the housing is subjected to external force.

[0043] The first connecting part 13 and the second connecting part 21 can be connected by snap-fit, plug-in or other means, or by fastener 4.

[0044] In some embodiments, such as Figure 2 and Figure 8 As shown, the battery control system includes multiple fasteners 4, and the housing 1 has multiple first connecting portions 13. Correspondingly, the cover 2 has multiple second connecting portions 21. Each first connecting portion 13 has a connecting hole, and each second connecting portion 21 has a countersunk hole extending Z-direction. The fasteners 4 pass through the countersunk holes and connecting holes sequentially and connect to the connecting holes. For example, the fasteners 4 can be bolts, and the connecting holes can be threaded holes.

[0045] Furthermore, in some embodiments, such as Figure 3 and Figure 5As shown, the housing 1 includes a base plate 11 and side plates 12 extending circumferentially around the base plate 11. The base plate 11 and the side plates 12 together enclose a receiving cavity 10. Multiple first connecting portions 13, second connecting portions 21, first reinforcing portions 14, and second reinforcing portions 22 are provided, with at least some of the first connecting portions 13 and second connecting portions 21 spaced circumferentially around the side plates 12. Specifically, in the first connecting portions 13 spaced circumferentially around the first side plates 121, at least one first reinforcing portion 14 is provided between two adjacent first connecting portions 13. In the second connecting portions 21 spaced circumferentially around the first side plates 121, at least one second reinforcing portion 22 is provided between two adjacent second connecting portions 21. Understandably, the side plates 12 form the edge portion of the housing, which is susceptible to collapse under external pressure during assembly or application. This arrangement enhances the anti-collapse effect of the edge portion of the housing, improving the protection of the circuit board 3.

[0046] Furthermore, the first connecting portion 13 and the second connecting portion 21 can be arranged entirely around the circumferential spacing of the side plate 12, or they can be arranged partially around the circumferential spacing of the side plate 12, with some portions located in the middle of the housing 1 and the cover 2. For example... Figure 3 As shown, the shell 1 is rectangular, and the side plate 12 is formed by two first side plates 121 facing each other along the first direction Y and two second side plates 122 facing each other along the second direction X. A first connecting portion 13 can be provided at each of the four corners of the shell 1, that is, at the connection points between the first side plates 121 and the second side plates 122, and a first connecting portion 13 can also be provided in the middle of the bottom plate 11 of the shell 1. A first connecting portion 13 can also be provided on the inner side of either the first side plate 121 or the second side plate 122. Correspondingly, the cover 2 is rectangular, matching the shape of the shell 1, and a second connecting portion 21 can be provided at each of the four corners, in the middle, and on one side along the first direction Y or the second direction X.

[0047] Understandably, the number of first connecting parts 13 and second connecting parts 21 can be the same or different, as long as the connection function between the housing 1 and the cover 2 can be achieved. Preferably, the number of first connecting parts 13 and second connecting parts 21 can be the same.

[0048] Furthermore, this utility model does not specifically limit the shape and structure of the first reinforcing part 14 and the second reinforcing part 22, as long as they can support each other and play a role in preventing collapse. For example, the first reinforcing part 14 can be constructed as a strip-shaped reinforcing rib, a block-shaped reinforcing rib, a column-shaped reinforcing rib, etc.

[0049] In some embodiments, the first reinforcing part 14 is a strip-shaped reinforcing rib, which is connected between the base plate 11 and the side plate 12. In this embodiment, setting the first reinforcing part 14 as a strip-shaped reinforcing rib not only achieves the anti-collapse effect, but also saves space in the receiving cavity 10, thereby reducing the size of the housing 1 while meeting installation requirements, and thus reducing the overall size of the power management unit.

[0050] In some embodiments, the second reinforcing portion 22 is a columnar reinforcing rib, and the first reinforcing portion 14 includes at least two spaced-apart strip-shaped reinforcing ribs, each of which is opposite to the columnar reinforcing rib. In this embodiment, the second reinforcing portion 22 is configured as a columnar reinforcing rib, which enhances its compressive strength compared to the strip-shaped reinforcing rib. Furthermore, the columnar reinforcing rib, in conjunction with the at least two strip-shaped reinforcing ribs, further enhances the anti-collapse effect.

[0051] For example, the second reinforcing part 22 can be a square columnar reinforcing rib, that is, the cross-sectional shape of the second reinforcing part 22 is square along the third direction Z. Furthermore, the interior of the second reinforcing part 22 is hollow to meet the requirements of lightweight design. Of course, the second reinforcing part 22 can also be other shapes such as cylindrical reinforcing ribs or prismatic reinforcing ribs, as long as it can cooperate with the first reinforcing part 14 to provide mutual support.

[0052] In some embodiments, such as Figure 5 As shown, the cover 2 includes a baffle 23 protruding toward the receiving cavity 10. The baffle 23 is located at the edge of the cover 2 and extends circumferentially around the cover 2. The aforementioned second reinforcing part 22 is disposed on the baffle 23, and at least a portion of the second connecting part 21 is disposed on the baffle 23. In this embodiment, the second reinforcing part 22 and the second connecting part 21 disposed on the baffle 23 can provide structural reinforcement to the baffle 23, thereby further enhancing the structural strength of the outer shell.

[0053] Furthermore, to enable the first reinforcing part 14 and the second reinforcing part 22 to support each other, a notch is provided at the edge of the circuit board 3 for either the first reinforcing part 14 or the second reinforcing part 22 to pass through along the third direction Z. Preferably, the first reinforcing part 14 is a strip-shaped reinforcing rib, and the second reinforcing part 22 is a column-shaped reinforcing rib. In the third direction Z, the first reinforcing part 14 protrudes from the second end face 211, and the second reinforcing part 22 is located below the second end face 211, that is, the second reinforcing part 22 is located below the circuit board 3. With this configuration, the first reinforcing part 14 being a strip-shaped reinforcing rib reduces the mounting space occupied by the circuit board 3, and the second reinforcing part 22 being located below the circuit board 3 reduces the size of the notch, thereby reducing the area occupied by the notch on the circuit board 3.

[0054] For example, the first reinforcing part 14 includes two strip-shaped reinforcing ribs spaced apart, and the second reinforcing part 22 can be a square column-shaped reinforcing rib. Along the third direction Z, both strip-shaped reinforcing ribs are opposite to the square column-shaped reinforcing ribs.

[0055] In some embodiments, such as Figure 3 , Figure 5 and Figure 8 As shown, a recessed portion 15 is formed at the end of the side plate 12 away from the bottom plate 11, and the cover 2 is embedded in the recessed portion 15. The cover 2 includes a baffle 23 extending circumferentially around the cover 2, the baffle 23 being located at the edge of the cover 2 and extending inside the side plate 12. It should be noted that the inside of the side plate 12 refers to the side of the side plate 12 located within the receiving cavity 10. In this embodiment, the cover 2 is embedded in the recessed portion 15, and the baffle 23 of the cover 2 extends inside the side plate 12, which can effectively prevent dust from entering the interior of the casing, thereby enabling the battery controller to have good IP40 protection performance. In addition, the recessed portion 15, the edge of the cover 2, and the baffle 23 form a mutually cooperating stepped structure, which lengthens the electrostatic creepage length, making the fit between the casing 1 and the cover 2 tighter and improving the electrostatic protection performance.

[0056] In some embodiments, such as Figure 3 and Figure 5 As shown, the side plate 12 is formed by two first side plates 121 facing each other along the first direction Y and two second side plates 122 facing each other along the second direction X. Inside the receiving cavity 10, the bottom plate 11 has two positioning portions 16 protruding towards the opening, and the two positioning portions 16 are respectively arranged adjacent to the first side plates 121 and the second side plates 122. In this embodiment, the two first side plates 121 and the two second side plates 122 together form a rectangular structure, and the two positioning portions 16 are respectively arranged adjacent to the first side plates 121 and the second side plates 122, that is, the two positioning portions 16 are respectively located on adjacent sides of the rectangular structure. When the circuit board 3 is installed in the housing 1, the two positioning portions 16 can limit the installation direction of the circuit board 3 and play a positioning role for the circuit board 3, improving the accuracy of the installation position of the circuit board 3, avoiding problems such as incorrect installation or reverse installation, and improving assembly efficiency.

[0057] For example, such as Figure 3 As shown, the positioning part 16 can be columnar, and positioning holes can be provided at the positions of the two positioning parts 16 on the circuit board 3. During installation, the two positioning parts 16 are respectively inserted into the two positioning holes of the circuit board 3.

[0058] In some embodiments, a matching concave-convex structure is provided at the connection between the housing 1 and the cover 2 to define the installation direction between the housing 1 and the cover 2, further improving the accuracy of assembly. Specifically, the concave-convex structure includes a groove 17 provided on the first side plate 121 and a protrusion 24 provided on the cover 2. The two first side plates 121 of the housing 1 each have a groove 17, which are staggered in the first direction Y. Correspondingly, the cover 2 has protrusions 24 on both sides along the first direction Y, with the two protrusions 24 respectively embedded in the two grooves 17. In this embodiment, the groove 17 and the protrusion 24 are asymmetrical structures, which not only serve as a guide during the assembly of the cover 2 and the housing 1, preventing reverse installation, but also provide clamping space for the circuit board 3, making it easier for the assembler to hold the circuit board 3 and install it into the housing 1 using the groove 17, thus improving the ease of assembly.

[0059] Understandably, in some embodiments not shown in the figures, the groove 17 and the protrusion 24 may be set as one or more, as long as they can achieve the effect of preventing incorrect assembly.

[0060] In some embodiments, such as Figure 4 As shown, outside the receiving cavity 10, the housing 1 is provided with a plug-in portion 18. Specifically, the plug-in portion 18 protrudes from the outer side of the side plate 12, and this plug-in portion 18 is used to connect with other components of the battery pack to realize corresponding monitoring and management functions. Specifically, the plug-in portion 18 is provided with a plug-in hole 181 and a protrusion 182, with the protrusion 182 located on one side of the plug-in hole 181. In this embodiment, the protrusion 182 can play a foolproof role, preventing the battery controller from being installed backwards in the battery pack.

[0061] Furthermore, in some embodiments, such as Figure 6 As shown, a recessed portion 25 is provided on the side of the cover 2 away from the receiving cavity 10, and a plurality of third reinforcing portions 26 are provided within the recessed portion 25. In this embodiment, by providing third reinforcing portions 26 within the recessed portion 25, the structural strength of the cover 2 is enhanced, thereby reducing the risk of collapse of the cover 2 and improving the protection effect on the circuit board 3 and connectors inside. Exemplarily, the third reinforcing portion 26 can be a strip-shaped reinforcing rib.

[0062] This utility model does not specifically limit the materials of the shell 1 and the cover 2. For example, the shell 1 and the cover 2 can be made of metal or plastic. The first connecting part 13, the first reinforcing part 14, the bottom plate 11, the side plate 12, etc. of the shell 1 can be integrally formed, and the second connecting part 21, the second reinforcing part 22, the baffle 23, the protrusion 24, the third reinforcing part 26, etc. of the cover 2 can also be integrally formed.

[0063] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A housing for use in a battery controller, characterized in that, The outer casing includes: A housing (1) having an opening forming a receiving cavity (10) within the housing (1); within the receiving cavity (10), the housing (1) includes a first connecting portion (13) and a first reinforcing portion (14) protruding toward the opening; A cover (2) is connected to the side of the housing (1) having the opening and covers the opening; the cover (2) includes a second connecting part (21) and a second reinforcing part (22) protruding toward the receiving cavity (10); The first connecting part (13) is opposite to and connected to the second connecting part (21) for clamping and fixing the circuit board (3); the first connecting part (13) has a first end face (131) for abutting against the circuit board (3), and the second connecting part (21) has a second end face (211) for abutting against the circuit board (3); the first reinforcing part (14) and the second reinforcing part (22) are disposed opposite to each other, the first reinforcing part (14) protrudes from the second end face (211), or the second reinforcing part (22) protrudes from the first end face (131).

2. The outer casing according to claim 1, characterized in that, The housing (1) includes a bottom plate (11) and a side plate (12) extending circumferentially around the bottom plate (11), the bottom plate (11) and the side plate (12) together enclosing the receiving cavity (10); The first connecting part (13), the second connecting part (21), the first reinforcing part (14), and the second reinforcing part (22) are all provided in multiples; at least some of the first connecting parts (13) and the second connecting parts (21) are arranged circumferentially around the side plate (12), and at least one first reinforcing part (14) is provided between two adjacent first connecting parts (13), and at least one second reinforcing part (22) is provided between two adjacent second connecting parts (21).

3. The outer casing according to claim 2, characterized in that, The first reinforcing part (14) is a strip-shaped reinforcing rib, which is connected between the bottom plate (11) and the side plate (12).

4. The outer casing according to claim 3, characterized in that, The second reinforcing part (22) is a columnar reinforcing rib, and the first reinforcing part (14) includes at least two strip-shaped reinforcing ribs spaced apart, and the at least two strip-shaped reinforcing ribs are opposite to the columnar reinforcing ribs.

5. The outer casing according to any one of claims 2-4, characterized in that, A recessed portion (15) is formed at one end of the side plate (12) away from the bottom plate (11), and the cover (2) is embedded in the recessed portion (15); the cover (2) includes a baffle (23) extending circumferentially around the cover (2), the baffle (23) being located at the edge of the cover (2) and extending inside the side plate (12).

6. The outer casing according to any one of claims 2-4, characterized in that, The side plate (12) is formed by two first side plates (121) facing each other along the first direction (Y) and two second side plates (122) facing each other along the second direction (X); inside the receiving cavity (10), the bottom plate (11) is provided with two positioning parts (16) protruding towards the opening; the two positioning parts (16) are respectively arranged adjacent to the first side plate (121) and the second side plate (122); The first direction (Y) intersects with the second direction (X).

7. The outer casing according to claim 6, characterized in that, Both of the first side plates (121) are provided with grooves (17), and the two grooves (17) are staggered in the first direction (Y); The cover (2) has protrusions (24) on both sides along the first direction (Y), and the two protrusions (24) are respectively embedded in the two grooves (17).

8. The outer casing according to claim 6, characterized in that, Outside the receiving cavity (10), the housing (1) is provided with a plug-in portion (18); the plug-in portion (18) is provided with a plug-in hole (181) and a protrusion (182), and the protrusion (182) is located on one side of the plug-in hole (181).

9. The outer casing according to any one of claims 1-4, characterized in that, The cover (2) has a recess (25) on the side opposite to the receiving cavity (10), and the recess (25) has a plurality of third reinforcing parts (26).

10. A battery controller, characterized in that, include: The housing as described in any one of claims 1-9; Circuit board (3) is installed inside the housing.

Images