Output pole protection base

Abstract

The utility model provides an output pole protection base which comprises a base body and side plates arranged on the two sides of the base body in the width direction. The base body comprises a first mounting table and a second mounting table which are sequentially arranged in the length direction of the base body, in the height direction of the base body, the first mounting table is higher than the second mounting table, the first mounting table is used for being connected with an output electrode busbar, and the second mounting table is used for being connected with a boundary beam of a battery pack; a first clamping part and a first limiting part which are located above the first mounting table are arranged on the inner side wall of each side plate, the first clamping parts are used for being connected with the output pole busbar in a clamped mode, and the first limiting parts are used for being matched with the first mounting table to limit the output pole busbar to shake in the height direction of the base body. According to the output pole protection base disclosed by the utility model, the output pole protection base can be put into a box along with a module by adopting a limiting and clamping mode, so that the automatic box-entering operation of the battery module can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to an output pole protection base. Background Art

[0002] The output pole protection base is one of the important components of the battery pack, and is mainly used to protect the battery pack from power problems such as overcurrent, overvoltage, and overtemperature. At present, in order to improve the production efficiency of the whole pack, the battery pack is usually assembled by automatically placing the battery module into the box. However, the main problem faced by the automatic placement of the battery module into the box is the coordination problem between the module output pole bus and the output pole protection base. For example, in the prior art, there is still an interference risk between the module output pole bus and the output pole protection base, especially the output pole bus and the mounting hole of the output pole protection base interfere with each other, resulting in the inability to install the fixing bolts, which cannot meet the design requirements of the automatic placement of the module into the box. Utility Model Content

[0003] In view of this, the utility model aims to provide an output pole protection base, which is conducive to the automatic box-in operation of the battery module.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] An output pole protection base, comprising a base body, and side plates arranged on both sides of the base body in a width direction; the base body comprises a first mounting platform and a second mounting platform arranged in sequence along its length direction, in a height direction of the base body, the first mounting platform is higher than the second mounting platform, and the first mounting platform is used to connect an output pole bus bar, and the second mounting platform is used to connect a side beam of a battery pack;

[0006] The inner side wall of each side panel is provided with a first clamping portion and a first limiting portion located above the first mounting platform, the first clamping portion is used to clamp with the output pole bus, and each first limiting portion is used to cooperate with the first mounting platform to limit the output pole bus from shaking along the height direction of the base body.

[0007] Furthermore, the first clamping portion includes a clamping protrusion arranged on the inner side wall of the side plate, and the clamping protrusion is used to clamp with the clamping groove on the output pole bus; and / or, the first limiting portion includes at least two first limiting blocks arranged on the inner side wall of the side plate, and the first limiting blocks on the same side plate are arranged at intervals along the length direction of the base body.

[0008] Furthermore, one side of one of the side panels, close to the second mounting platform, extends outward and is connected to a low-voltage bracket for connecting to a low-voltage plug-in.

[0009] Furthermore, the low-voltage bracket includes a first substrate connected to the side panel, a first slot provided on the first substrate, and a first hook provided on the first substrate and located in the first slot; the low-voltage plug-in includes a card plate with a card slot, and an FPC or FDC connected to the card plate. After the card plate is inserted into the first slot, it is inserted into the card slot through the first hook to be fixed on the first substrate.

[0010] Furthermore, the low-voltage bracket includes a top plate arranged on the top of the first substrate, and a bottom plate arranged on the bottom of the first substrate, and third limit blocks are provided on the top plate and the bottom plate; the first slot is formed in the area surrounded by the first substrate, the top plate, the bottom plate and the third limit blocks.

[0011] Furthermore, an avoidance hole is provided on the first substrate, and the first hook is located in the avoidance hole; and / or an abutment limit column is provided on the side of the first substrate away from the side plate, and the clamping plate abuts on the abutment limit column.

[0012] Furthermore, the low-voltage bracket includes a card connection unit arranged between the top plate and the bottom plate, the card connection unit includes a second substrate spaced apart from and arranged parallel to the first substrate, a second slot arranged on a side of the second substrate away from the first substrate, and a second hook arranged on the second substrate and located in the second slot; after the card connection plate is inserted into the second slot, it is snapped into the slot through the second hook to be fixed on the second substrate.

[0013] Furthermore, the side plate is provided with a second limiting portion for limiting the shaking of the low-voltage plug-in along the width direction of the base body.

[0014] Furthermore, the second limiting portion includes a plurality of second limiting blocks provided on the side plate, and the second limiting blocks are arranged at intervals along the length direction of the base body; the FPC or the FDC is limited between the second limiting blocks and the side plate.

[0015] Furthermore, the first mounting platform is provided with a first mounting hole and a fastening nut arranged in the first mounting hole. The fastening nut is interference fit with the first mounting hole and is used to be connected to the output pole bus bar.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The output pole protection base described in the utility model can connect the output pole protection base with the output pole bus first by setting a first mounting platform, so that the output pole protection base can be put into the box with the battery module, and then the output pole protection base is fixed on the side beam of the battery pack by the second mounting platform, so as to solve the problem of interference between the output pole bus and the output pole protection base in the traditional technology, and realize the automatic box-entry operation of the battery module. At the same time, the clamping part is set to realize the positioning of the output pole bus, and the limiting part can prevent the output pole bus from shaking up and down, which can not only improve the installation convenience between the output pole protection base and the output pole bus, but also improve the structural stability between the two after entering the box, thereby having a good use effect.

[0018] Furthermore, the snap-fit ​​protrusion and the limit block have a simple structure and are easy to arrange. The setting of the low-voltage bracket is conducive to improving the stability of the installation of the low-voltage plug-in. The low-voltage plug-in and the low-voltage bracket are connected by a snap-fit ​​plate, which can achieve a snap-fit ​​connection, thereby improving the convenience of disassembly and assembly. The setting of the first slot has a reasonable structure, is easy to arrange the overall structure, and can also ensure the stable connection of the low-voltage plug-in. The setting of the avoidance hole is conducive to the snap-fit ​​plate to push open the hook and insert it into the slot until the hook is inserted into the slot, and the first substrate is also provided with an abutment limit column to prevent the snap-fit ​​plate from shaking along the length direction of the base body.

[0019] Furthermore, multiple clamping units can be provided to fix multiple low-voltage plug-ins. The second limiter is provided in cooperation with the clamping plate and the first substrate to prevent the low-voltage plug-in from shaking along the width direction of the base body, and can also limit the arching of the FPC or FDC to prevent the arching of the FPC or FDC from interfering with other parts in the package. The tightening nut and the output pole protection base body are connected reliably through interference fit, which can ensure that the two are not dropped off. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the output pole protection base described in an embodiment of the utility model;

[0022] Figure 2 for Figure 1 A magnified view of the structure shown in the middle A;

[0023] Figure 3 for Figure 1 A magnified view of the structure shown at B;

[0024] Figure 4 This is a schematic diagram of the bottom structure of the output pole protection base according to an embodiment of the utility model;

[0025] Figure 5 for Figure 4 An enlarged view of the structure shown in C;

[0026] Figure 6 for Figure 1 a top view of the structure shown;

[0027] Figure 7 for Figure 6 Cross-sectional view along the DD direction;

[0028] Figure 8 for Figure 7 An enlarged view of the structure shown in E;

[0029] Fig. 9 This is a structural schematic diagram of the clamping plate described in an embodiment of the utility model;

[0030] Fig.10 This is a schematic diagram of the structure of the output pole busbar described in an embodiment of the utility model;

[0031] Fig.11 This is a structural schematic diagram of a fastening nut according to an embodiment of the utility model;

[0032] Fig.12 It is a structural schematic diagram of the mounting bolt insert according to an embodiment of the utility model;

[0033] Description of reference numerals:

[0034] 1. Base body; 11. Side plate; 111. Second limiting portion; 1111. Second limiting block;

[0035] 2. first mounting platform; 21. first clamping portion; 211. clamping protrusion; 22. first limiting portion; 221. first limiting block; 23. first mounting hole; 231. first hole section; 232. second hole section; 24. first mounting cavity;

[0036] 3. Second mounting platform; 31. Second mounting hole;

[0037] 4. Low-voltage bracket; 41. First substrate; 411. First hook; 412. Avoidance hole; 42. First slot; 421. Top plate; 422. Bottom plate; 423. Third limit block; 43. Abutment limit column;

[0038] 5. Card plate; 51. Card slot;

[0039] 6. Card connection unit; 61. Second substrate; 611. Second card hook; 62. Second slot;

[0040] 7. Fastening nut; 71. First connecting section; 72. Second connecting section; 73. Output bus bar; 731. Clamping slot;

[0041] 8. Installing bolt insert; 81. First cylinder; 82. Second cylinder;

[0042] 9. Strengthen the ribs;

[0043] D. The outer circumferential wall size of the second connecting section; d. The inner circumferential wall size of the second hole section. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0045] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] Taking the output pole protection base described in the present invention as an example, the directional words used in the embodiments, such as "up, down, left, right, front, back" are based on Figure 1 The vertical direction (also called the height direction), the horizontal direction (also called the width direction), and the front-back direction (also called the length direction) in the illustrated state are defined as references.

[0047] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0048] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0049] Embodiment 1

[0050] This embodiment relates to an output pole protection base, which is conducive to the automatic box-in operation of the battery module. Figure 1As shown, the output pole protection base of this embodiment includes a base body 1, and side panels 11 arranged on both sides of the base body 1 in the width direction. The base body 1 includes a first mounting platform 2 and a second mounting platform 3 arranged in sequence along its own length direction. In the height direction of the base body 1, the first mounting platform 2 is higher than the second mounting platform 3, and the first mounting platform 2 is used to connect the output pole bus 73, and the second mounting platform 3 is used to connect the side beam of the battery pack.

[0051] At the same time, the inner wall of each side panel 11 is provided with a first clamping portion 21 and a first limiting portion 22 located above the first mounting platform 2. The first clamping portion 21 is used to clamp with the output pole bus 73, and each first limiting portion 22 is used to cooperate with the first mounting platform 2 to limit the output pole bus 73 from shaking along the height direction of the base body 1.

[0052] Here, by setting up a first mounting platform 2, the output pole protection base can be first connected to the output pole bus 73, so that the output pole protection base can be put into the box with the battery module, and then the output pole protection base is fixed on the side beam of the battery pack through the second mounting platform 3 to solve the problem of interference between the output pole bus 73 and the output pole protection base in traditional technology, thereby realizing the automatic boxing operation of the battery module.

[0053] In addition, the first clamping portion 21 is provided to realize the positioning of the output pole bus 73, and the first limiting portion 22 can prevent the output pole bus 73 from shaking up and down, which can not only improve the installation convenience between the output pole protection base and the output pole bus 73, but also improve the structural stability between the two after entering the box, thereby having a good use effect.

[0054] Based on the above overall introduction, in this embodiment, as a preferred implementation form, Figure 1 , Figure 6 and Fig.10 As shown, the first clamping portion 21 includes a clamping protrusion 211 provided on the inner side wall of the side plate 11, and the clamping protrusion 211 is used to clamp with the clamping groove 731 on the output pole bus 73. Thus, a clamping connection between the output pole bus 73 and the base body 1 can be formed, making the disassembly and assembly of the two more convenient.

[0055] At the same time, the first limiting portion 22 includes at least two first limiting blocks 221 arranged on the inner side wall of the side plate 11, and the first limiting blocks 221 on the same side plate 11 are arranged at intervals along the length direction of the base body 1. Here, by setting the clamping protrusion 211 and the first limiting blocks 221, the structure can be simple and easy to arrange as a whole.

[0056] It should be noted that the number of the first limiting blocks can be set and adjusted according to actual needs, for example, it can be set to four, and it is only necessary to satisfy the limitation of the height direction of the output pole bus 73.

[0057] In a specific implementation, a clamping groove 731 is provided at the end of the output pole bus 73. After the output pole bus 73 is placed in the base body 1, the clamping groove 731 cooperates with the clamping protrusion 211 to achieve the limitation of the output pole bus 73 along the length direction of the base, and the limitation along the height direction of the base body 1 is achieved through four first limiting blocks 221 provided on the inner wall of the side panel 11.

[0058] Furthermore, in this embodiment, as a preferred implementation form, Figures 1 to 3 As shown, one side of one of the side panels 11 close to the second mounting platform 3 extends outward and is connected with a low-voltage bracket 4 for connecting to the low-voltage plug-in. Here, the arrangement of the low-voltage bracket 4 is conducive to the fixed installation of the low-voltage plug-in.

[0059] Moreover, in this embodiment, as a preferred implementation form, the low-voltage bracket 4 includes a first substrate 41 connected to the side plate 11, a first slot 42 provided on the first substrate 41, and a first hook 411 provided on the first substrate 41 and located in the first slot 42.

[0060] At the same time, the low-voltage plug-in includes a card board 5 with a card slot 51, and an FPC (Flexible Printed Circuit Board; Flexible Printed Circuit Board) or FDC (Flexible Die-cutting Circuit; Flexible Die-cutting Circuit Board) connected to the card board 5. After the card board 5 is inserted into the first slot 42, it is fixed to the first substrate 41 by the first hook 411 into the card slot 51. Here, by providing the card board 5, the low-voltage plug-in can be connected to the low-voltage bracket 4 by card connection, thereby improving the convenience of disassembly and assembly.

[0061] It is worth mentioning that the connection between the FPC or FDC and the clamping plate 5 can refer to the connection methods well known to those skilled in the art, such as bonding, riveting or screwing.

[0062] Secondly, in this embodiment, as a preferred implementation form, Figure 1 and Figure 3 As shown, the low-voltage bracket 4 includes a top plate 421 arranged on the top of the first substrate 41, and a bottom plate 422 arranged on the bottom of the first substrate 41, and third limit blocks 423 are provided on the top plate 421 and the bottom plate 422, and the first slot 42 is formed in the area surrounded by the first substrate 41, the top plate 421, the bottom plate 422 and the third limit blocks 423.

[0063] Here, the first slot 42 is formed by the first substrate 41, the top plate 421, the bottom plate 422 and the third limit blocks 423. The setting result is reasonable and easy to arrange, and it can also limit the shaking of the low-voltage plug-in along the height direction of the base body 1, thereby ensuring the stability of the low-voltage plug-in connection.

[0064] In this embodiment, as a preferred implementation form, Figure 1 and Fig. 9 As shown, the first substrate 41 is provided with an avoidance hole 412 , the first hook 411 is located in the avoidance hole 412 , and abutment limiting columns 43 are provided on the side of the first substrate 41 away from the side plate 11 , and the clamping plate 5 abuts against the abutment limiting columns 43 .

[0065] Here, the setting of the avoidance hole 412 is conducive to the clamping plate 5 to push open the hook and insert it into the first slot 42 until the hook is clamped into the slot 51. The contact with the limiting column 43 can prevent the clamping plate 5 from shaking along the length direction of the base body 1.

[0066] In the specific implementation, the low-voltage plug-in can be inserted into the first slot 42 along each third limit block 423. When the low-voltage plug-in is inserted along the 30° inclined surface of the hook, the hook can bend and deform to the left. When the clamping plate 5 is inserted into the abutment limit column 43, the hook rebounds into the clamping groove 51 of the clamping plate 5, thereby realizing the limitation of the low-voltage plug-in.

[0067] In addition, in this embodiment, as a preferred implementation form, Figure 4 and Figure 5 As shown, the low-voltage bracket 4 includes a card-connecting unit 6 disposed between a top plate 421 and a bottom plate 422, and the card-connecting unit 6 includes a second substrate 61 spaced apart from and arranged in parallel with the first substrate 41, a second slot 62 disposed on a side of the second substrate 61 away from the first substrate 41, and a second hook 611 disposed on the second substrate 61 and located in the second slot 62. At the same time, after the card-connecting plate 5 is inserted into the second slot 62, the second hook 611 is engaged with the card slot 51 to be fixed on the second substrate 61.

[0068] It should be noted that the number of the card-connecting units 6 can be designed and adjusted accordingly according to actual needs, and each card-connecting unit 6 includes a substrate, each substrate is spaced and arranged in parallel, and is structurally the same as the first substrate 41, and the slots on each substrate are arranged on a side away from the previous substrate. When there are multiple low-voltage plug-ins, each low-voltage plug-in is inserted into the slot on each substrate and is fixed to each substrate by a hook into the card slot 51.

[0069] In this embodiment, as a preferred implementation form, Figure 1As shown, the side plate 11 is provided with a second limiter 111 for limiting the low-voltage plug-in from shaking along the width direction of the base body 1. Here, the second limiter 111 can prevent the low-voltage plug-in from shaking along the width direction of the base body 1.

[0070] And, as a preferred implementation form, still as Figure 1 and Figure 6 As shown, the second limiting portion 111 of this embodiment includes a plurality of second limiting blocks 1111 provided on the side panel 11 , and the second limiting blocks 1111 are arranged at intervals along the length direction of the base body 1 , and the FPC or FDC is limited between the second limiting blocks 1111 and the side panel 11 .

[0071] It is worth mentioning that after the snap-in plate 5 is snap-connected with the first substrate 41, the FPC or FDC is limited between the second limit block 1111 and the side plate 11. Here, the second limit portion 111 is arranged in cooperation with the snap-in plate 5 and the first substrate 41 to ensure the stability of the low-voltage plug-in connection, and to limit the arching of the FPC or FDC to prevent the arching of the FPC or FDC from interfering with other parts in the package.

[0072] Furthermore, the FPC or FDC is flexible and can be bent. After the snap-in plate 5 is snap-connected with the second substrate 61 , the FPC or FDC can be bent close to the side plate 11 to be limited between the second limit block 1111 and the side plate 11 .

[0073] In addition, in this embodiment, as a preferred implementation form, Figure 4 As shown, the first mounting platform 2 is provided with a first mounting hole 23, and a fastening nut 7 is provided in the first mounting hole 23, the fastening nut 7 is interference fit with the first mounting hole 23, and is used to be connected with the output pole bus bar 73. Here, the interference fit can ensure that the fastening nut 7 is reliably connected to the output pole protection base body 1 and does not fall off.

[0074] It is still worth mentioning that the lower end of the first mounting platform 2 has a first mounting cavity 24, a reinforcing rib 9 is provided in the first mounting cavity 24, and a first mounting hole 23 is provided on the first mounting platform 2, the first mounting hole 23 passes through the first mounting platform 2, and the first mounting hole 23 has a first hole section 231 and a second hole section 232, and the second hole section 232 is located below the first hole section 231 and communicates with the mounting cavity. The cross section of the first hole section 231 is circular, and the cross section of the second hole section 232 is hexagonal.

[0075] Secondly, if Figure 7 , Figure 8 and Fig.11As shown, the fastening nut 7 includes a first connecting section 71 and a second connecting section 72 connected in the axial direction of the fastening nut 7, the first connecting section 71 is cylindrical, and the second connecting section 72 is hexagonal. The outer peripheral wall size D of the second connecting section 72 is 0.2 mm smaller than the inner peripheral wall d of the second hole section 232 of the first mounting hole 23. Thus, the fastening nut 7 and the base body 1 can be prevented from rotating relative to each other, ensuring that the fastening nut 7 is firmly fixed.

[0076] In the specific implementation, the fastening nut 7 is first installed from the lower end of the installation cavity to the first installation hole 23, so that the first connecting section 71 is passed through the first hole section 231 and then extends out of the base body 1 to ensure that the output pole bus 73 is installed by bolts, and the second connecting section 72 is set in the second hole section 232.

[0077] Furthermore, the maximum distance between any two points on the outer contour of the second connecting section 72 is greater than the maximum distance between any two points on the inner circumferential wall of the first hole section 231. Thus, the second connecting section 72 of the fastening nut 7 can be prevented from entering the first hole section 231 and leaving the first mounting hole 23 from the first hole section 231.

[0078] The output pole bus bar 73 is connected to the fastening nut 7 and is fixed to the base body 1, so that the output pole bus bar 73 and the base body 1 will not rotate relative to each other along the axis of the fastening nut 7, thereby achieving fixation between the output pole bus bar 73 and the base body 1.

[0079] like Figure 4 , Figure 6 and Fig.12 As shown, the second mounting platform 3 of this embodiment has a second mounting cavity at its lower end, a reinforcing rib 9 is provided in the second mounting cavity, and a second mounting hole 31 is provided on the second mounting platform 3 , which passes through the bottom of the second mounting platform 3 .

[0080] Meanwhile, the mounting bolt insert 8 comprises a first cylinder 81 and a second cylinder 82, wherein the diameter of the first cylinder 81 is larger than that of the second cylinder 82, and the diameter of the second cylinder 82 is 0.2 mm larger than that of the second mounting hole 31. The mounting bolt insert 8 is reliably connected to the base body 1 by interference fit.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An output pole protection base, characterized in that: It comprises a base body and side panels arranged on both sides of the base body in the width direction; The base body includes a first mounting platform and a second mounting platform sequentially arranged along the length direction of the base body. In the height direction of the base body, the first mounting platform is higher than the second mounting platform, and the first mounting platform is used to connect the output pole bus bar, and the second mounting platform is used to connect the side beam of the battery pack; The inner side wall of each side panel is provided with a first clamping portion and a first limiting portion located above the first mounting platform, the first clamping portion is used to clamp with the output pole bus, and each first limiting portion is used to cooperate with the first mounting platform to limit the output pole bus from shaking along the height direction of the base body.

2. The output pole protection base according to claim 1, characterized in that: The first clamping portion comprises a clamping protrusion provided on the inner side wall of the side plate, and the clamping protrusion is used to clamp with the clamping groove on the output pole busbar; and / or, The first limiting portions each include at least two first limiting blocks disposed on the inner side wall of the side plate, and the first limiting blocks on the same side plate are spaced apart along the length direction of the base body.

3. The output pole protection base according to claim 2, characterized in that: One side of one of the side panels, close to the second mounting platform, extends outward and is connected to a low-voltage bracket for connecting to a low-voltage plug-in.

4. The output pole protection base according to claim 3, characterized in that: The low-voltage bracket includes a first base plate connected to the side plate, a first slot provided on the first base plate, and a first hook provided on the first base plate and located in the first slot; The low-voltage plug-in includes a card board with a card slot, and an FPC or FDC connected to the card board. After the card board is inserted into the first slot, it is hooked into the card slot through the first hook to be fixed on the first substrate.

5. The output pole protection base according to claim 4, characterized in that: The low-voltage bracket includes a top plate arranged on the top of the first substrate, and a bottom plate arranged on the bottom of the first substrate, and a third limiting block is arranged on the top plate and the bottom plate; The first slot is formed in an area surrounded by the first substrate, the top plate, the bottom plate and each of the third limiting blocks.

6. The output pole protection base according to claim 5, characterized in that: The first substrate is provided with an avoidance hole, and the first hook is located in the avoidance hole; and / or, A contact limiting column is provided on a side of the first substrate away from the side plate, and the clamping plate is contacted with the contact limiting column.

7. The output pole protection base according to claim 5, characterized in that: The low-voltage bracket includes a clamping unit disposed between the top plate and the bottom plate, the clamping unit includes a second substrate spaced apart from and arranged in parallel with the first substrate, a second slot disposed on a side of the second substrate away from the first substrate, and a second hook disposed on the second substrate and located in the second slot; After the card connecting plate is inserted into the second slot, it is locked into the card slot through the second hook to be fixed on the second substrate.

8. The output pole protection base according to claim 4, characterized in that: The side plate is provided with a second limiting portion for limiting the low-voltage plug-in from shaking along the width direction of the base body.

9. The output pole protection base according to claim 8, characterized in that: The second limiting portion includes a plurality of second limiting blocks provided on the side plate, and each of the second limiting blocks is arranged at intervals along the length direction of the base body; The FPC or the FDC is limited between each of the second limiting blocks and the side plates.

10. The output pole protection base according to any one of claims 1 to 9, characterized in that: The first mounting platform is provided with a first mounting hole and a fastening nut arranged in the first mounting hole. The fastening nut is interference-fitted with the first mounting hole and is used to be connected to the output pole busbar.

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