A terminal plate having a plug-in terminal
Patent Information
- Application Number
- CN202522319663.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0003]然而，上述现有技术存在明显缺陷：首先，端板侧面加工六角盲孔工艺复杂，对模具要求高，增加了制造成本；其次，六角孔结构会形成应力集中，削弱端板整体机械强度，在承受电芯膨胀力时易开裂；再次，其固定效果依赖过盈配合，精度难以控制，过松易导致螺母打滑，过紧易导致端板开裂，装配可靠性与一致性差，该现象成为本领域人员亟待解决的问题
[0011]与现有技术相比，本实用新型所达到的有益效果是：本实用新型，通过设置有插拔式的端子，成功实现了接线端子模块的即插即用与快速更换，极大地提升了设备的维护效率与系统可用性。
Smart Images
Figure CN224908259U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of energy storage equipment structure technology, specifically relating to an end plate with pluggable terminals. Background Technology
[0002] In energy storage devices such as lithium-ion battery modules, end plates are key structural components located at both ends of the cell stack, providing support, fixation, and insulation. Electrical terminals are mounted on the end plates to enable electrical connection between the module and external systems. Currently, the traditional method for fixing terminals typically involves creating a Z-axis through hole in the end plate body for the terminal to pass through, machining a hexagonal blind hole on the side of the end plate and pressing in a hexagonal nut insert, and finally securing the terminal with a screw screwed into the nut from the outside. This method relies on the mechanical interlock between the nut and the end plate hole wall to withstand the Z-axis pull-out force.
[0003] However, the aforementioned existing technologies have obvious drawbacks: First, the process of machining hexagonal blind holes on the side of the end plate is complex, requires high-quality molds, and increases manufacturing costs; second, the hexagonal hole structure will cause stress concentration, weakening the overall mechanical strength of the end plate and making it prone to cracking when subjected to the expansion force of the battery cell; third, its fixing effect depends on interference fit, and the precision is difficult to control. Too loose a fit will cause the nut to slip, and too tight a fit will cause the end plate to crack, resulting in poor assembly reliability and consistency. This phenomenon has become a problem that urgently needs to be solved by those in the field. Utility Model Content
[0004] The purpose of this invention is to provide an end plate with pluggable terminals for existing devices, in order to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an end plate with pluggable terminals, including an end plate and terminals. The end plate includes an inner side facing the battery module and an outer side with a mounting structure. The end plate is cuboid in shape. An irregularly shaped guide groove is provided on the top of the end plate. The irregularly shaped guide groove is U-shaped and runs through the outer and inner sides of the end plate. A protrusion is fixed in the middle of both sides inside the irregularly shaped guide groove. The protrusion is rectangular. The shape of the terminal is adapted to the shape of the irregularly shaped guide groove. The irregularly shaped guide groove is plugged into the terminal.
[0006] This utility model further describes that a threaded hole is provided at the center of the top of the terminal for electrical connection with external circuitry. Sliding grooves are provided on both sides of the terminal, and the sliding grooves match the shape of the protrusions. The sliding grooves and protrusions are slidably connected, and the protrusions restrict the displacement of the terminal in the X and Y directions. The end plate body is integrally formed by molding MFP composite material. The top of the end plate is provided with a mounting hole for subsequent tool operation space. Rectangular grooves are provided on the upper part of both sides of the end plate. The inner edges and corners of the rectangular grooves are rounded. The inner side of the end plate is in contact with the battery module. The inner side of the end plate is a large flat surface. The outer side of the end plate is provided with crisscrossing reinforcing ribs, which greatly improves the bending and compressive strength of the end plate when subjected to the expansion force of the battery cell, and saves materials.
[0007] This utility model further describes that mounting posts are fixed on both sides of the end plate. The mounting posts have a quarter-circular cross-section and a length less than that of the end plate. A through hole is provided at the center of the top of the mounting post for fixing the upper and lower plates of the battery module. The through hole is capsule-shaped and passes through the mounting post. A back plate is fixed to the top of the mounting post. The side of the back plate is fixedly connected to the end plate. The back of the back plate and the inner side of the end plate are on the same horizontal plane. A square groove is provided in front of the mounting post. The length of the square groove is about half that of the mounting post. The square groove communicates with the through hole.
[0008] This utility model further explains that a square groove two is provided on the side of the bottom of the mounting column away from the inner side. The length of the square groove two is shorter than the length of the square groove one. The bottom of the square groove two is on the same plane as the bottom of the mounting column. The square groove two is connected to the through hole one. Limiting block one and limiting block two are fixedly connected to the front of the mounting column. The volume of limiting block one is smaller than the volume of limiting block two. Limiting block one is located below the square groove one, and limiting block two is located above the square groove two. Limiting block one and limiting block two are used for guiding and limiting with the external fixing plate.
[0009] The present invention further explains that the reinforcing rib is provided with two sets of threaded holes, which are located on the lower part of the end plate. The threaded holes are arranged horizontally and symmetrically along the center line of the outer side of the end plate. A serrated hole is provided at the intersection of the reinforcing ribs. The serrated hole is provided with multiple radial teeth and grooves evenly distributed around its circumference for installation and fixation, so that the end plate is not easy to slide.
[0010] The present invention further describes that the reinforcing rib is fixedly connected to platform one and platform two, which are located at the left and right ends of the end plate, respectively. Platform one has two through holes two with equal diameter and depth, and the two sets of through holes two are arranged horizontally. A metal sleeve is fixed on the inner circle of the left through hole two, and multiple radial teeth and grooves are evenly distributed on the circumference of the metal sleeve. Platform two has through holes three and four, and the diameter of through hole three is larger than the diameter of through hole four.
[0011] Compared with the prior art, the beneficial effects achieved by this utility model are: by setting pluggable terminals, this utility model successfully realizes the plug-and-play and quick replacement of the terminal block module, which greatly improves the maintenance efficiency of the equipment and the availability of the system. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the terminal of this utility model; In the diagram: 1. End plate; 101. Irregular guide groove; 102. Protrusion; 103. Mounting hole; 104. Rectangular groove; 2. Terminal; 201. Threaded hole one; 202. Sliding groove; 3. Mounting post; 301. Through hole one; 302. Square groove one; 303. Back plate; 304. Limiting block one; 305. Limiting block two; 306. Square groove two; 4. Reinforcing rib; 401. Threaded hole two; 402. Serrated hole one; 5. Platform one; 501. Metal hole sleeve; 502. Through hole two; 6. Platform two; 601. Through hole three; 602. Through hole four. Detailed Implementation
[0013] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0014] Please see Figure 1-2 The present invention provides a technical solution: an end plate with pluggable terminals, including an end plate 1 and a terminal 2. The end plate 1 includes an inner side facing the battery module and an outer side with a mounting structure. The end plate 1 is cuboid in shape. A shaped guide groove 101 is provided on the top of the end plate 1. The shaped guide groove 101 is U-shaped and penetrates the outer side and inner side of the end plate 1. A protrusion 102 is fixed in the middle of both sides inside the shaped guide groove 101. The protrusion 102 is rectangular. The shape of the terminal 2 is adapted to the shape of the shaped guide groove 101. The shaped guide groove 101 is plugged into the terminal 2. A threaded hole 201 is provided at the center of the top of terminal 2 for electrical connection with external circuits. Slide grooves 202 are provided on both sides of terminal 2. The slide grooves 202 match the shape of the protrusions 102 and are slidably connected to the protrusions 102. The protrusions 102 restrict the displacement of terminal 2 in the X and Y directions. The end plate 1 body is integrally formed by molding MFP composite material. A mounting hole 103 is provided at the top of end plate 1 for subsequent tool operation space. Rectangular grooves 104 are provided on the upper part of both sides of end plate 1. The inner edges and corners of the rectangular grooves 104 are rounded. The inner side of end plate 1 is in contact with the battery module. The inner side of end plate 1 is a large flat surface. The outer side of end plate 1 is provided with crisscrossing reinforcing ribs 4, which greatly improves the bending and compressive strength of end plate 1 when subjected to the expansion force of the battery cell and saves materials. Mounting posts 3 are fixed on both sides of the end plate 1. The cross-section of the mounting post 3 is quarter-circular and its length is less than that of the end plate 1. A through hole 301 is opened in the center of the top of the mounting post 3 for fixing the upper and lower plates of the battery module. The through hole 301 is capsule-shaped and passes through the mounting post 3. A back plate 303 is fixed on the top of the mounting post 3. The side of the back plate 303 is fixedly connected to the end plate 1. The back of the back plate 303 is on the same horizontal plane as the inner side of the end plate 1. A square groove 302 is opened in front of the mounting post 3. The length of the square groove 302 is about half that of the mounting post 3. The square groove 302 is connected to the through hole 301. A square groove 2 306 is provided on the side of the bottom of the mounting column 3 away from the inner side. The length of square groove 2 306 is shorter than the length of square groove 1 302. The bottom of square groove 2 306 is on the same plane as the bottom of the mounting column 3. Square groove 2 306 is connected to through hole 1 301. Limiting block 1 304 and limiting block 2 305 are fixedly connected to the front of the mounting column 3. The volume of limiting block 1 304 is smaller than the volume of limiting block 2 305. Limiting block 1 304 is located below square groove 1 302, and limiting block 2 305 is located above square groove 2 306. Limiting block 1 304 and limiting block 2 305 are used for guiding and limiting with the external fixing plate. The reinforcing rib 4 has two sets of threaded holes 401. The two sets of threaded holes 401 are located in the lower part of the end plate 1. The threaded holes 401 are arranged horizontally and symmetrically along the center line of the outer side of the end plate 1. The reinforcing rib 4 has a sawtooth hole 402 at the center of the intersection. The sawtooth hole 402 has multiple radial teeth and grooves evenly distributed around its circumference for installation and fixation, so that the end plate 1 is not easy to slide. Platform 1 5 and Platform 2 6 are fixedly connected to the reinforcing rib 4. Platform 1 5 and Platform 2 6 are located at the left and right ends of the end plate 1, respectively. Platform 1 5 has two through holes 2 502 with equal diameter and depth. The two sets of through holes 2 502 are arranged horizontally. A metal sleeve 501 is fixed on the inner circle of the left through hole 2 502. The metal sleeve 501 has multiple radial teeth and grooves evenly distributed around its circumference. Platform 2 6 has through holes 3 601 and 4 602. The diameter of through hole 3 601 is larger than the diameter of through hole 4 602.
[0015] Working principle: This utility model is suitable for application scenarios where there is no pull-out force requirement in the Z direction. During installation, first align terminal 2 with the irregular guide groove 101 along the Y direction, and smoothly slide terminal 2 into the irregular guide groove 101. The protrusion 102 and the slide groove 202 fix terminal 2 in the X and Y directions. The threaded hole 201 on terminal 2 is used to connect with the cable to complete the electrical connection. The end plate 1 body does not need to be pulled from the side, thereby improving the mold production efficiency and life, as well as the assembly reliability and consistency, and increasing the working efficiency and quick replacement of terminal 2 wiring.
[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0017] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An end plate with pluggable terminals, comprising an end plate (1) and terminals (2), characterized in that: The end plate (1) includes an inner side facing the battery module and an outer side with an installation structure. The end plate (1) is rectangular. A shaped guide groove (101) is provided on the top of the end plate (1). The shaped guide groove (101) is U-shaped and runs through the outer and inner sides of the end plate (1). A protrusion (102) is fixed in the middle of both sides inside the shaped guide groove (101). The protrusion (102) is rectangular. The shape of the terminal (2) is adapted to the shape of the shaped guide groove (101). The shaped guide groove (101) is inserted into the terminal (2).
2. The end plate with pluggable terminals according to claim 1, characterized in that: The terminal (2) has a threaded hole (201) at the top center and a sliding groove (202) on both sides. The sliding groove (202) matches the shape of the protrusion (102) and the sliding groove (202) is slidably connected to the protrusion (102). The end plate (1) is integrally formed by molding MFP composite material. The end plate (1) has a mounting hole (103) at the top and rectangular grooves (104) on the upper part of both sides. The inner edges and corners of the rectangular grooves (104) are rounded. The inner side of the end plate (1) is in contact with the battery module. The inner side of the end plate (1) is a large plane. The outer side of the end plate (1) is provided with crisscrossing reinforcing ribs (4).
3. An end plate with pluggable terminals according to claim 2, characterized in that: Mounting posts (3) are fixed on both sides of the end plate (1). The mounting posts (3) have a quarter-circular cross-section and a length less than that of the end plate (1). A through hole (301) is provided at the center of the top of the mounting post (3). The through hole (301) is capsule-shaped and passes through the mounting post (3). A back plate (303) is fixed on the top of the mounting post (3). The side of the back plate (303) is fixedly connected to the end plate (1). The back of the back plate (303) is on the same horizontal plane as the inner side of the end plate (1). A square groove (302) is provided in front of the mounting post (3). The length of the square groove (302) is about half that of the mounting post (3). The square groove (302) is connected to the through hole (301).
4. An end plate with pluggable terminals according to claim 3, characterized in that: The bottom of the mounting post (3) is provided with a square groove 2 (306) on the side away from the inner side. The length of the square groove 2 (306) is shorter than the length of the square groove 1 (302). The bottom of the square groove 2 (306) is on the same plane as the bottom of the mounting post (3). The square groove 2 (306) is connected to the through hole 1 (301). The mounting post (3) is fixedly connected to the front of the limiting block 1 (304) and the limiting block 2 (305). The volume of the limiting block 1 (304) is smaller than the volume of the limiting block 2 (305). The limiting block 1 (304) is located below the square groove 1 (302), and the limiting block 2 (305) is located above the square groove 2 (306).
5. An end plate with pluggable terminals according to claim 4, characterized in that: The reinforcing rib (4) has two sets of threaded holes (401) located in the lower part of the end plate (1). The threaded holes (401) are arranged horizontally and symmetrically along the center line of the outer side of the end plate (1). A sawtooth hole (402) is provided at the central intersection of the reinforcing rib (4). The sawtooth hole (402) has multiple radial teeth and grooves evenly distributed around its circumference.
6. An end plate with pluggable terminals according to claim 5, characterized in that: Platform 1 (5) and Platform 2 (6) are fixedly connected to the reinforcing rib (4). Platform 1 (5) and Platform 2 (6) are located at the left and right ends of the end plate (1). Platform 1 (5) has two through holes 2 (502) with equal diameter and depth. The two sets of through holes 2 (502) are arranged horizontally. A metal sleeve (501) is fixed on the inner circle of the through hole 2 (502) on the left side. The metal sleeve (501) has multiple radial teeth and grooves evenly distributed around its circumference. Platform 2 (6) has through holes 3 (601) and through holes 4 (602). The diameter of through hole 3 (601) is larger than the diameter of through hole 4 (602).