A battery module output pole base

Abstract

The utility model discloses a battery module output pole base relates to battery module technical field, and this device includes: the base body made of insulating material, and the base body includes base plate, isolates the protection part, the mounting piece, strengthens the supporting part and the location assembly part, and the mounting piece sunken mode sets up on the base plate, and the matching protection bushing is fixedly installed in the mounting piece, and the protection bushing is used for fixed output pole connecting piece, and the isolation protection part installs at the top edge of base plate, and strengthens the supporting part and sets up between the base plate and mounting piece, and the location assembly part sets up at the bottom of mounting piece and strengthens the supporting part. The utility model discloses through sunken mode installation structure and protection bushing combination, effectively prevents the exposed conductive component and metal scrap intrusion, strengthens the supporting and isolation protection design to improve structural stability and insulation security, and the location assembly part realizes quick accurate installation, and comprehensively guarantees the safe operation of battery module.

Description

Technical Field

[0001] This utility model belongs to the field of battery module technology, specifically a battery module output electrode base. Background Technology

[0002] With the rapid development of new energy vehicles, energy storage equipment, and other fields, the market has placed higher demands on the performance and reliability of power batteries and energy storage batteries. As the core energy unit, the stability of the internal structure and the reliability of electrical connections of the battery module directly affect the performance and safety of the entire battery pack. The output terminal base is a key component in the battery module, usually composed of insulating materials and embedded conductive components (such as copper busbars). It mainly undertakes the electrical connection and mechanical support functions of the battery module's output terminals, and its design quality is crucial to the long-term stable operation of the battery module.

[0003] In related technologies, common CCS output terminal base assemblies have some inherent design flaws. First, the conductive components at the bottom (such as connecting pieces or copper busbars) have exposed areas, lacking sufficient insulation protection, making them susceptible to electrical safety hazards such as short circuits and arcing due to contact with foreign objects or dust and moisture accumulation. Second, the injection-molded nuts are usually open structures, with their channels directly or indirectly connected to the external environment and the inside of the battery pack. This brings two main risks: one is that metal debris generated during operations such as tightening bolts can easily fall into the battery pack through this open channel. These conductive debris may scratch the blue insulating film (blue film) on the surface of the cell, or even cause a short circuit in the cell casing, leading to serious problems such as insulation failure and thermal runaway; the other is that external contaminants such as moisture and dust may also enter through this channel, affecting the cleanliness and insulation performance of the battery pack, creating potential safety hazards. Utility Model Content

[0004] This utility model provides a battery module output electrode base, which can solve the problems of electrical safety hazards caused by exposed bottom conductive parts and open connection of injection-molded nuts in the existing CCS output electrode base, as well as the problems of metal debris falling into the battery pack and causing damage to the blue film of the battery cell and insulation failure.

[0005] To achieve the above objectives, according to an embodiment of the first aspect of this utility model, a battery module output electrode base is provided, comprising a base body made of insulating material. The base body includes a base substrate, an isolation and protective component, a mounting component, a reinforcing support component, and a positioning assembly. The mounting component is recessed and disposed on the base substrate, and a matching protective bushing is fixedly installed inside the mounting component. The protective bushing is used to fix the output electrode connecting piece. The isolation and protective component is installed at the top edge of the base substrate. The reinforcing support component is disposed between the base substrate and the mounting component. The positioning assembly is disposed at the bottom of the mounting component and the reinforcing support component, and the positioning assembly is used for assembly and engagement with the end plate of the battery module.

[0006] As a further technical solution of this utility model, the isolation and protection component includes a first partition and a second partition. The two first partitions are symmetrically arranged on the upper surface of the base substrate near both ends. The second partition is installed on the upper surface of the base substrate near one side, and the second partition and the two first partitions form an inverted U-shaped structure.

[0007] As a further technical solution of this utility model, the mounting component includes an annular groove and a cylindrical body. The annular groove is formed on the upper surface of the base plate, and the cylindrical body is connected to the bottom of the annular groove and is integrally formed with the base plate.

[0008] As a further technical solution of this utility model, the reinforcing support includes a frame, a U-shaped plate, a first connecting plate, and a second connecting plate. The frame, the U-shaped plate, the first connecting plate, and the second connecting plate are all disposed on the lower surface of the base plate. The first connecting plate is located between the cylinder and the frame, and the second connecting plate is located between the two cylinders. The first connecting plate and the second connecting plate are distributed along the length direction of the base plate. The two ends of the U-shaped plate are respectively connected to the side walls of the two first connecting plates.

[0009] As a further technical solution of this utility model, the protective bushing includes an annular portion and a cylindrical portion. The cylindrical portion is coaxially disposed at the bottom of the annular portion and is integrally formed with the annular portion. The annular portion is interference-fitted with the annular groove, and the inner ring of the annular portion and the inner wall of the cylindrical portion are provided with continuous internal threads.

[0010] As a further technical solution of this utility model, the first partition, the second partition, and the base plate are integrally formed, and the height of the second partition is greater than the height of the first partition.

[0011] As a further technical solution of this utility model, the reinforcing support also includes a first reinforcing rib and a second reinforcing rib. The cylinder is connected to the inner wall of the frame and the side wall of the U-shaped plate respectively through the two first reinforcing ribs. The second reinforcing rib is disposed between the side wall of the U-shaped plate and the inner wall of the frame. The first reinforcing rib and the second reinforcing rib are both connected to the lower surface of the base plate, and the first reinforcing rib and the second reinforcing rib are distributed along the width direction of the base plate.

[0012] As a further technical solution of this utility model, both the annular portion and the cylindrical portion are made of metal material, and the upper surface of the annular portion protrudes from the upper surface of the base plate.

[0013] As a further technical solution of this utility model, the positioning assembly includes a first buckle, a second buckle, a first convex plate and a second convex plate. The first convex plate is disposed on one side bottom of the U-shaped plate, the two first buckles are symmetrically disposed at the bottom ends of the U-shaped plate, the two second convex plates are respectively disposed at the bottom of the two cylinders, and the ends of the second convex plates are flush with the ends of the first convex plates. The second buckle is located between the two second convex plates and is disposed at the bottom of the second connecting plate.

[0014] As a further technical solution of this utility model, the positioning assembly also includes a third reinforcing rib, which is connected between the first convex plate and the second convex plate, and the top end of the third reinforcing rib is connected to the bottom of the cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, by setting the mounting component in a recessed manner on the base plate and incorporating a protective bushing, the bottom conductive components are effectively shielded to prevent electrical short circuits. At the same time, the protective bushing can seal and secure the channel, completely isolating the risk of metal debris falling into the battery pack and ensuring insulation safety.

[0016] 2. In this utility model, by setting isolation and protective components at the edge of the base plate, configuring reinforcing support components below the installation area, and setting positioning components at the bottom, the insulation protection of the operating area, the structural reinforcement of key connection points, and the quick and accurate snap-fit ​​with the end plate are achieved, which significantly improves the product's protection, structural stability, and ease of assembly. Attached Figure Description

[0017] Figure 1 This is a perspective view of a battery module output terminal base according to the present invention; Figure 2 This is an exploded view of a battery module output terminal base according to the present invention; Figure 3 This is a cross-sectional view of the base body in the output terminal base of a battery module according to this utility model; Figure 4 This is a perspective view of the base body in the output terminal base of a battery module according to the present invention; Figure 5 This is a perspective view of the connection between the reinforcing support and the cylinder in the output electrode base of a battery module according to this utility model.

[0018] In the figure: 10, base body; 100, base base plate; 200, isolation and protective component; 201, first partition plate; 202, second partition plate; 300, mounting component; 301, annular groove; 302, cylindrical body; 400, reinforcing support component; 401, frame; 402, U-shaped plate; 403, first connecting plate; 404, second connecting plate; 405, first reinforcing rib; 406, second reinforcing rib; 500, positioning assembly; 501, first buckle; 502, second buckle; 503, first protruding plate; 504, second protruding plate; 505, third reinforcing rib; 600, protective bushing; 601, circular ring; 602, cylindrical part. Detailed Implementation

[0019] The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0020] like Figures 1-5 As shown, a battery module output electrode base includes a base body 10 made of insulating material. In this embodiment, the insulating material can be engineering plastic, rubber, etc. The base body 10 includes a base substrate 100, an isolation protective member 200, a mounting member 300, a reinforcing support member 400, and a positioning device 500. The mounting member 300 is recessed and disposed on the base substrate 100, and a matching protective bushing 600 is fixedly installed inside the mounting member 300. The protective bushing 600 is used to fix the output electrode connecting piece. The isolation protective member 200 is installed at the top edge of the base substrate 100. The reinforcing support member 400 is disposed between the base substrate 100 and the mounting member 300. The positioning device 500 is disposed at the bottom of the mounting member 300 and the reinforcing support member 400, and is used to assemble and snap with the end plate of the battery module.

[0021] It should be noted that during use, the base body 10 is fixed to the end plate of the battery module by its positioning fitting 500. The output terminal connection piece is fixed and electrically connected by a protective bushing 600 that is recessed and set in the mounting piece 300 on the base substrate 100. This recessed structure, combined with the protective bushing 600, effectively shields the conductive area and isolates metal debris. At the same time, the isolation protective piece 200 installed on the top edge of the base substrate 100 forms an outer isolation protection for the connection area, while the reinforcing support piece 400 set between the base substrate 100 and the mounting piece 300 provides stable mechanical support for the entire structure, together ensuring the reliability of the electrical connection and the safety of operation.

[0022] like Figure 1 and Figure 3As shown, the isolation and protection component 200 includes a first partition 201 and a second partition 202. The two first partitions 201 are symmetrically arranged on the upper surface of the base substrate 100 near both ends. The second partition 202 is installed on the upper surface of the base substrate 100 near one side, and the second partition 202 and the two first partitions 201 form an inverted U-shaped structure.

[0023] It should be noted that the isolation and protection component 200 forms an inverted U-shaped structure by two first partitions 201 symmetrically arranged on the base plate 100 and a second partition 202 installed on one side. This structure forms a physical isolation barrier around the output electrode connection piece, effectively preventing contact with external foreign objects or accidental short circuits.

[0024] like Figures 2-3 As shown, the mounting component 300 includes an annular groove 301 and a cylindrical body 302. The annular groove 301 is formed on the upper surface of the base plate 100, and the cylindrical body 302 is connected to the bottom of the annular groove 301 and is integrally formed with the base plate 100.

[0025] It should be noted that the mounting component 300 forms a recessed mounting structure through the annular groove 301 opened on the upper surface of the base plate 100 and the cylindrical body 302 connected to and integrally formed therewith. This structure is used to accommodate and fix the protective bushing 600, thereby concealing the mounting position of the output electrode connection piece, effectively avoiding the exposure of conductive components and improving electrical safety.

[0026] like Figures 3-5 As shown, the reinforcing support 400 includes a frame 401, a U-shaped plate 402, a first connecting plate 403, and a second connecting plate 404. The frame 401, U-shaped plate 402, first connecting plate 403, and second connecting plate 404 are all disposed on the lower surface of the base plate 100. The first connecting plate 403 is located between the cylinder 302 and the frame 401, and the second connecting plate 404 is located between the two cylinders 302. The first connecting plate 403 and the second connecting plate 404 are distributed along the length direction of the base plate 100. The two ends of the U-shaped plate 402 are respectively connected to the side walls of the two first connecting plates 403.

[0027] It should be noted that the reinforcing support 400, together with the frame 401, U-shaped plate 402, first connecting plate 403 and second connecting plate 404 distributed along the length direction on the lower surface of the base plate 100, forms a three-dimensional support frame. The first connecting plate 403 connects the cylinder 302 and the frame 401, the second connecting plate 404 connects the two cylinders 302, and the U-shaped plate 402 connects the two first connecting plates 403 laterally. This frame effectively transmits and distributes the force on the mounting point to a larger area of ​​the base plate 100, significantly enhancing the rigidity and stability of the overall structure.

[0028] like Figures 1-2 As shown, the protective bushing 600 includes an annular portion 601 and a cylindrical portion 602. The cylindrical portion 602 is coaxially disposed at the bottom of the annular portion 601, and the cylindrical portion 602 and the annular portion 601 are integrally formed. The annular portion 601 is interference-fitted with the annular groove 301. The inner ring of the annular portion 601 and the inner wall of the cylindrical portion 602 are provided with continuous internal threads.

[0029] It should be noted that the protective bushing 600 is fixed by interference fit between its annular portion 601 and the annular groove 301 of the mounting part 300, while the integrally formed cylindrical portion 602 extends downward to form a closed channel. The continuous internal thread on the inner wall of this component is used to screw in the connecting bolt to fix the output pole connecting piece. This structure effectively seals the metal debris generated during the fastening process inside the bushing, preventing it from falling into the battery pack, while achieving a reliable electrical connection.

[0030] like Figure 3 As shown, the first partition 201, the second partition 202 and the base plate 100 are integrally formed, and the height of the second partition 202 is greater than the height of the first partition 201.

[0031] It should be noted that the isolation and protection component 200 forms a physical barrier together with the first partition 201 integrally formed on the base plate 100 and the second partition 202 which is taller. The taller second partition 202 provides stronger blocking protection for the critical side, while the integrated structure ensures overall rigidity and insulation reliability, effectively realizing zoned isolation and safety protection.

[0032] like Figures 4-5 As shown, the reinforcing support 400 also includes a first reinforcing rib 405 and a second reinforcing rib 406. The cylinder 302 is connected to the inner wall of the frame 401 and the side wall of the U-shaped plate 402 respectively through the two first reinforcing ribs 405. The second reinforcing rib 406 is disposed between the side wall of the U-shaped plate 402 and the inner wall of the frame 401. The first reinforcing rib 405 and the second reinforcing rib 406 are both connected to the lower surface of the base plate 100, and the first reinforcing rib 405 and the second reinforcing rib 406 are distributed along the width direction of the base plate 100.

[0033] It should be noted that the reinforcing support 400 is distributed along the width direction of the base plate 100 and connects key components through the first reinforcing rib 405 and the second reinforcing rib 406. The cylinder 302 is rigidly connected to the inner wall of the frame 401 and the side wall of the U-shaped plate 402 through the two first reinforcing ribs 405 respectively. The second reinforcing rib 406 forms a lateral support between the side wall of the U-shaped plate 402 and the inner wall of the frame 401. These reinforcing ribs together effectively disperse the force, significantly improving the overall rigidity and deformation resistance of the structure around the installation point.

[0034] like Figure 2 As shown, both the annular portion 601 and the cylindrical portion 602 are made of metal, and the upper surface of the annular portion 601 protrudes from the upper surface of the base substrate 100.

[0035] It should be noted that the upper surface of the annular portion 601 made of metal material protrudes from the upper surface of the base plate 100. When the output electrode connecting piece is tightened, the protruding metal surface can ensure that a solid and reliable metal contact interface is formed with the connecting piece, effectively preventing the insulating material of the base plate 100 from participating in conductive contact or causing interference, thereby achieving a stable and low-resistance electrical connection.

[0036] like Figures 3-5 As shown, the positioning assembly 500 includes a first buckle 501, a second buckle 502, a first protruding plate 503, and a second protruding plate 504. The first protruding plate 503 is disposed on one side bottom of the U-shaped plate 402. The two first buckles 501 are symmetrically disposed at the bottom ends of the U-shaped plate 402. The two second protruding plates 504 are respectively disposed at the bottom of the two cylinders 302, and the ends of the second protruding plates 504 are flush with the ends of the first protruding plates 503. The second buckle 502 is located between the two second protruding plates 504 and is disposed at the bottom of the second connecting plate 404.

[0037] It should be noted that the positioning assembly 500 achieves multi-point snap-fit ​​fixation with the end plate through two first buckles 501 set at the bottom of both ends of the U-shaped plate 402 and a second buckle 502 set at the bottom of the second connecting plate 404. At the same time, the first protruding plate 503 and the two second protruding plates 504 form a coplanar support structure. Through the joint action of the protruding buckles and the flush protruding plates, the base body 10 and the battery module end plate can achieve fast and accurate positioning and stable and reliable assembly connection.

[0038] like Figures 4-5 As shown, the positioning assembly 500 also includes a third reinforcing rib 505, which is connected between the first protruding plate 503 and the second protruding plate 504, and the top end of the third reinforcing rib 505 is connected to the bottom of the cylinder 302.

[0039] It should be noted that in this embodiment, the first reinforcing rib 405 and the third reinforcing rib 505 between the side wall of the cylinder 302 and the U-shaped plate 402 are integrally formed. The positioning assembly 500 establishes a connection between the first convex plate 503 and the second convex plate 504 through the third reinforcing rib 505, and rigidly connects the bottom of the cylinder 302 to the supporting structure below. At the same time, the first reinforcing rib 405 and the third reinforcing rib 505 between the side wall of the cylinder 302 and the U-shaped plate 402 adopt an integrally formed structure, forming a continuous force transmission path from the installation point to the support base, which significantly enhances the rigidity of the key connection parts and the stability of the overall structure.

[0040] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A battery module output electrode base, comprising a base body (10) made of insulating material, characterized in that, The base body (10) includes a base plate (100), an isolation protective component (200), a mounting component (300), a reinforcing support component (400), and a positioning assembly (500). The mounting component (300) is recessed and mounted on the base plate (100), and a matching protective bushing (600) is fixedly installed inside the mounting component (300). The protective bushing (600) is used to fix the output electrode connection piece. The isolation protective component (200) is installed at the top edge of the base plate (100). The reinforcing support component (400) is located between the base plate (100) and the mounting component (300). The positioning assembly (500) is located at the bottom of the mounting component (300) and the reinforcing support component (400), and the positioning assembly (500) is used to assemble and snap with the end plate of the battery module.

2. The battery module output terminal base according to claim 1, characterized in that, The isolation and protective component (200) includes a first partition (201) and a second partition (202). The two first partitions (201) are symmetrically arranged on the upper surface of the base substrate (100) near both ends. The second partition (202) is installed on the upper surface of the base substrate (100) near one side, and the second partition (202) and the two first partitions (201) form an inverted U-shaped structure.

3. The battery module output terminal base according to claim 1, characterized in that, The mounting component (300) includes an annular groove (301) and a cylindrical body (302). The annular groove (301) is formed on the upper surface of the base plate (100), and the cylindrical body (302) is connected to the bottom of the annular groove (301). The cylindrical body (302) and the base plate (100) are integrally formed.

4. A battery module output terminal base according to claim 3, characterized in that, The reinforcing support (400) includes a frame (401), a U-shaped plate (402), a first connecting plate (403), and a second connecting plate (404). The frame (401), U-shaped plate (402), first connecting plate (403), and second connecting plate (404) are all disposed on the lower surface of the base plate (100). The first connecting plate (403) is located between the cylinder (302) and the frame (401), and the second connecting plate (404) is located between the two cylinders (302). The first connecting plate (403) and the second connecting plate (404) are distributed along the length direction of the base plate (100). The two ends of the U-shaped plate (402) are respectively connected to the side walls of the two first connecting plates (403).

5. A battery module output terminal base according to claim 3, characterized in that, The protective bushing (600) includes an annular portion (601) and a cylindrical portion (602). The cylindrical portion (602) is coaxially disposed at the bottom of the annular portion (601), and the cylindrical portion (602) and the annular portion (601) are integrally formed. The annular portion (601) is interference-fitted with the annular groove (301), and the inner ring of the annular portion (601) and the inner wall of the cylindrical portion (602) are provided with continuous internal threads.

6. A battery module output terminal base according to claim 2, characterized in that, The first partition (201), the second partition (202) and the base plate (100) are integrally formed, and the height of the second partition (202) is greater than the height of the first partition (201).

7. A battery module output terminal base according to claim 4, characterized in that, The reinforcing support (400) further includes a first reinforcing rib (405) and a second reinforcing rib (406). The cylindrical body (302) is connected to the inner wall of the frame (401) and the side wall of the U-shaped plate (402) respectively through the two first reinforcing ribs (405). The second reinforcing rib (406) is disposed between the side wall of the U-shaped plate (402) and the inner wall of the frame (401). The first reinforcing rib (405) and the second reinforcing rib (406) are both connected to the lower surface of the base plate (100), and the first reinforcing rib (405) and the second reinforcing rib (406) are distributed along the width direction of the base plate (100).

8. A battery module output terminal base according to claim 5, characterized in that, Both the annular portion (601) and the cylindrical portion (602) are made of metal material, and the upper surface of the annular portion (601) protrudes from the upper surface of the base plate (100).

9. A battery module output terminal base according to claim 4, characterized in that, The positioning assembly (500) includes a first buckle (501), a second buckle (502), a first protruding plate (503), and a second protruding plate (504). The first protruding plate (503) is disposed on one side bottom of the U-shaped plate (402). The two first buckles (501) are symmetrically disposed at the bottom ends of the U-shaped plate (402). The two second protruding plates (504) are respectively disposed at the bottom of the two cylinders (302), and the ends of the second protruding plates (504) are flush with the ends of the first protruding plates (503). The second buckle (502) is located between the two second protruding plates (504) and is disposed at the bottom of the second connecting plate (404).

10. A battery module output terminal base according to claim 9, characterized in that, The positioning assembly (500) also includes a third reinforcing rib (505), which is connected between the first convex plate (503) and the second convex plate (504), and the top end of the third reinforcing rib (505) is connected to the bottom of the cylinder (302).

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