A connecting structure of an energy storage circuit board

Abstract

The utility model discloses a kind of connecting structure of energy storage circuit board, including circuit board body and the positioning frame for being connected with energy storage equipment;The circuit board body is clamped in the inner chamber of positioning frame, and mounting groove is respectively set up on the two side walls of positioning frame, by setting mounting groove with positioning assembly in the two sides of positioning frame, the cooperation of movable rod and spring is utilized, the quick clamping and release of circuit board body are realized, maintenance personnel only need to pull connecting rod to drive pull rod and movable rod to move, the clamping state of circuit board body can be easily released, and quick disassembly is realized;When installing, circuit board body is inserted into the inner chamber of positioning frame under the guidance of guide column, and is automatically clamped by wedge portion, easy and fast to operate, this design greatly shortens the dismounting time of circuit board body, significantly improves the maintenance efficiency of energy storage equipment, reduces downtime, improves equipment utilization.

Description

Technical Field

[0001] This utility model relates to the field of energy storage equipment technology, specifically to a connection structure for an energy storage circuit board. Background Technology

[0002] As one of the core components of an energy storage system, the energy storage circuit board undertakes key functions such as electrical connection, signal transmission and control. It is widely used in many fields to support the stable operation and energy management of various devices. In a solar photovoltaic power generation system, the energy storage circuit board connects photovoltaic panels, battery packs, inverters and other devices to realize the storage and release of electrical energy. When there is sufficient sunlight, excess electrical energy is stored in the battery through the circuit board; at night or when there is insufficient sunlight, the battery supplies power to the load through the circuit board, ensuring the continuous power supply of the solar power generation system and improving energy utilization.

[0003] In existing technologies, energy storage circuit boards are typically installed with energy storage devices (such as battery modules, power management units, inverters, etc.) by means of screw fixing or welding. During the long-term operation of energy storage devices, circuit boards may need to be disassembled and replaced due to aging, failure, or upgrade requirements. Existing connection methods require tools to tighten or loosen each connection one by one, which is cumbersome and time-consuming, resulting in extended maintenance cycles, increased equipment downtime, and impact on the availability and economic benefits of energy storage systems. Therefore, we need to propose a connection structure for energy storage circuit boards. Summary of the Invention

[0004] The purpose of this utility model is to provide a connection structure for energy storage circuit boards. By setting mounting slots with positioning components on both sides of the positioning frame, the disassembly and assembly time of the circuit board body can be greatly shortened, the maintenance efficiency of energy storage equipment can be significantly improved, downtime can be reduced, and the equipment utilization rate can be increased. This circuit board connection structure is used for energy storage systems (such as battery management systems BMS and energy storage converters PCS), and is especially suitable for application scenarios that require rapid disassembly and assembly and high reliability, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A connection structure for an energy storage circuit board includes: a circuit board body and a positioning frame for connecting to an energy storage device; the circuit board body is snapped into the inner cavity of the positioning frame, and mounting slots are respectively provided on the two side walls of the positioning frame, and positioning components for quickly clamping the circuit board body are provided inside the mounting slots; four sets of guide posts are fixedly connected to the bottom of the circuit board body, and the four sets of guide posts are inserted into the inner top of the positioning frame, and the four sets of guide posts are arranged asymmetrically.

[0007] Preferably, the positioning component includes two sets of fixed shells, which are fixedly embedded in the interior of the mounting groove. A movable rod is slidably inserted into the interior of the fixed shell. One end of the movable rod passes through the mounting groove, and the bottom of the movable rod abuts against the top of the circuit board body. A spring is fixedly connected to the other end of the movable rod, and one end of the spring is fixedly connected to the inner wall of one side of the fixed shell.

[0008] Preferably, it also includes two sets of pull rods, which are slidably inserted into one side wall of the two sets of fixed shells respectively. One end of the pull rod passes through the fixed shell and is fixedly connected to one end of the movable rod, and the spring is movably sleeved on the outer wall of the pull rod.

[0009] Preferably, the exposed ends of the two sets of pull rods are fixedly connected to connecting rods.

[0010] Preferably, the end of the movable rod away from the spring has a wedge-shaped portion, and the outer wall of the circuit board body is provided with a wear-resistant coating, which is slidably connected to the wedge-shaped portion.

[0011] Preferably, the top inner part of the positioning frame is provided with a guide hole that matches the guide post, and the bottom end of the guide post is inserted into the guide hole.

[0012] Preferably, the inner top of the positioning frame is provided with an adhesive layer, and the bottom of the circuit board body is bonded and fixed to the top of the adhesive layer.

[0013] Preferably, the bottom of the circuit board body is provided with a notch, and the interior of the notch is provided with a stepped groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model achieves rapid locking and releasing of the circuit board body by setting mounting slots with positioning components on both sides of the positioning frame and utilizing the cooperation of the movable rod and spring. Maintenance personnel only need to pull the connecting rod to move the pull rod and movable rod to easily release the locking state of the circuit board body and achieve rapid disassembly. During installation, the circuit board body is inserted into the inner cavity of the positioning frame under the guidance of the guide column and automatically locked by the wedge part. The operation is simple and quick. This design significantly shortens the disassembly and assembly time of the circuit board body, significantly improves the maintenance efficiency of energy storage equipment, reduces downtime, and improves equipment utilization.

[0016] 2. By precisely matching the four sets of asymmetrical guide pillars at the bottom of the circuit board body with the guide holes at the top of the positioning frame, the positioning accuracy of the circuit board during installation is ensured. The asymmetrical design effectively prevents the circuit board from being installed backwards or incorrectly, avoiding electrical connection problems caused by installation errors. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the circuit board body and positioning frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the positioning frame and positioning components of this utility model.

[0020] In the diagram: 1. Circuit board body; 2. Positioning frame; 3. Mounting slot; 4. Positioning assembly; 401. Fixed shell; 402. Movable rod; 403. Spring; 404. Pull rod; 5. Guide post; 6. Connecting rod; 7. Wedge-shaped part; 8. Wear-resistant coating; 9. Guide hole; 10. Adhesive layer; 11. Notch groove; 12. Step groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution:

[0023] A connection structure for an energy storage circuit board includes: a circuit board body 1 and a positioning frame 2 for connecting with an energy storage device. The positioning frame 2 serves as the core support structure for connecting the energy storage device, and its inner cavity size is precisely matched with the outer contour of the circuit board body 1 to ensure that the circuit board body 1 does not shake or shift after installation.

[0024] The circuit board body 1 is snapped into the inner cavity of the positioning frame 2. The two side walls of the positioning frame 2 are respectively provided with mounting grooves 3. The mounting grooves 3 are provided with positioning components 4 for quickly snapping the circuit board body 1. The mounting grooves 3 on the two side walls of the positioning frame 2 provide installation space for the positioning components 4. This snapping structure not only ensures the stability of the connection, but also provides a basis for subsequent quick disassembly and assembly.

[0025] Four sets of guide posts 5 are fixedly connected to the bottom of the circuit board body 1. All four sets of guide posts 5 are inserted into the inner top of the positioning frame 2, and the four sets of guide posts 5 are arranged asymmetrically.

[0026] The positioning component 4 includes two sets of fixed shells 401. The fixed shells 401 are fixedly embedded inside the mounting groove 3. A movable rod 402 is slidably inserted into the inside of the fixed shell 401. The fixed shells 401 are fixed in the mounting groove 3 by fasteners or embedding process. The sliding fit accuracy between the internal sliding groove and the movable rod 402 is controlled within ±0.05mm to ensure that the movable rod 402 does not jam when the spring 403 is compressed. One end of the movable rod 402 passes through the mounting groove 3, and the bottom of the movable rod 402 abuts against the top of the circuit board body 1. The other end of the movable rod 402 is fixedly connected to the spring 403. One end of the spring 403 is fixedly connected to the inner wall of one side of the fixed shell 401. The spring 403 is made of a high elastic coefficient material, and the initial compression is designed to be 30%-50% of the stroke of the movable rod to balance the clamping force and the ease of operation.

[0027] It also includes two sets of pull rods 404, which are slidably inserted into one side wall of the two sets of fixed shells 401. One end of the pull rod 404 passes through the fixed shell 401 and is fixedly connected to one end of the movable rod 402, and the spring 403 is movably sleeved on the outer wall of the pull rod 404.

[0028] The exposed ends of the two sets of pull rods 404 are fixedly connected to the connecting rods 6. The connection between the pull rods 404 and the movable rod 402 is provided with a limit pin to prevent them from loosening during high-frequency operation. The exposed ends of the two sets of pull rods 404 are linked through the connecting rods 6. The surface of the connecting rods 6 is covered with an anti-slip silicone layer. The operator can pull the two pull rods 404 on both sides simultaneously by holding them with one hand, so that the movable rod 402 retracts and releases the circuit board body 1.

[0029] A wedge-shaped part 7 is provided at the end of the movable rod 402 away from the spring 403. A wear-resistant coating 8 is provided on the outer wall of the circuit board body 1. The wear-resistant coating 8 is slidably connected to the wedge-shaped part 7. The wedge-shaped part 7 at the end of the movable rod 402 adopts a 45° inclined surface design, and its surface hardness reaches HRC55-60. It forms a hard-soft fit with the wear-resistant coating 8 on the outer wall of the circuit board body 1. The wear-resistant coating 8 is made of polytetrafluoroethylene vinyl composite material with a thickness controlled at 0.1-0.2mm. It has both a low coefficient of friction (≤0.1) and high wear resistance. During the insertion of the circuit board, the sliding friction between the wedge-shaped part 7 and the wear-resistant coating 8 is less than the preload of the spring 403, ensuring that the circuit board can be smoothly inserted and automatically locked.

[0030] The top inner part of the positioning frame 2 is provided with guide holes 9 that are adapted to the guide posts 5. The bottom end of the guide posts 5 is inserted into the interior of the guide holes 9. The four sets of guide posts 5 are arranged asymmetrically, with two sets being cylindrical and two sets having elliptical cross sections. The guide holes 9 on the top inner part of the positioning frame 2 are matched with the same shape. The asymmetrical design prevents the circuit board from being installed backwards through geometric constraints. At the same time, the gap between the guide posts 5 and the guide holes 9 is controlled at 0.02-0.05mm, which ensures smooth insertion and suppresses fretting wear of the circuit board under vibration. The surface of the guide posts 5 is plated with hard chrome, increasing the hardness to HRC60-62, which significantly improves the wear resistance.

[0031] An adhesive layer 10 is provided on the inner top of the positioning frame 2. The bottom of the circuit board body 1 is bonded and fixed to the top of the adhesive layer 10. The adhesive layer 10 is made of two-component epoxy resin adhesive, and its Shore hardness is D70-80 after curing. It has both high bonding strength (shear strength ≥15MPa) and a certain degree of elasticity. The thickness of the adhesive layer 10 is 0.3-0.5mm. After the circuit board body 1 is clamped, it is bonded by pressure to further enhance the connection stability. At the same time, the elasticity of the adhesive layer 10 can absorb low-frequency vibrations during the operation of the energy storage equipment, reduce the risk of fatigue of the circuit board solder joints, and extend the service life of the equipment.

[0032] The bottom of the circuit board body 1 is provided with a notch 11, and the inside of the notch 11 is provided with a stepped groove 12. The notch 11 is rectangular, which makes it easy to apply an upward lifting force during disassembly. The operator can insert his / her fingers into the notch 11 and hook them on the edge of the stepped groove 12. By leveraging the principle, the adhesive force of the adhesive layer 10 can be overcome more easily, and the circuit board body 1 can be removed from the positioning frame 2. In addition, the edge of the stepped groove 12 is designed with rounded corners to avoid scratching the fingers during operation.

[0033] Installation process: The operator aligns the guide post 5 of the circuit board body 1 with the guide hole 9 of the positioning frame 2 and presses it down vertically. When the guide post 5 is inserted into the guide hole 9, the wear-resistant coating 8 on the outer wall of the circuit board body 1 contacts the wedge-shaped part 7 of the movable rod 402, pushing the movable rod 402 to retract into the fixed shell 401 against the elastic force of the spring 403. After the circuit board body 1 is fully inserted into the inner cavity of the positioning frame 2, the movable rod 402 is reset under the action of the spring 403, and its end abuts against the top of the circuit board body 1 to achieve a clamping fixation. At the same time, the bottom of the circuit board body 1 is bonded to the adhesive layer 10 to complete the double fixation.

[0034] Disassembly process: The operator pulls the connecting rod 6, which drives the two pull rods 404 to move synchronously, causing the movable rod 402 to retract and disengage from the circuit board body 1. At this time, the circuit board body 1 is only constrained by the adhesive force of the adhesive layer 10. The adhesive force can be overcome and the circuit board can be removed by lifting vertically.

[0035] Error prevention and self-locking mechanism: The cooperation between the asymmetric guide post 5 and the guide hole 9 ensures that the circuit board can only be inserted in the correct direction. When installed in reverse, the guide post cannot enter the guide hole, triggering physical error prevention. The preload of the spring 403 is designed to be 3-5 times the weight of the circuit board body 1, ensuring that the movable rod 402 will not retract unexpectedly in a vibration environment, thus realizing the self-locking function.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connection structure for an energy storage circuit board, characterized in that, Include: Circuit board body (1) and positioning frame (2) for connecting with energy storage device; The circuit board body (1) is clamped in the inner cavity of the positioning frame (2), mounting grooves (3) are respectively formed in the two side walls of the positioning frame (2), and a positioning assembly (4) for quickly clamping the circuit board body (1) is arranged in the mounting groove (3). Four groups of guide columns (5) are fixedly connected to the bottom of the circuit board body (1), the four groups of guide columns (5) are inserted into the inner top of the positioning frame (2), and the four groups of guide columns (5) are asymmetrically arranged.

2. The connection structure of the energy storage circuit board according to claim 1, characterized in that: The positioning assembly (4) includes two groups of fixed shells (401), the fixed shells (401) are fixedly embedded in the inner part of the mounting groove (3), the inner part of the fixed shell (401) is slidably connected with a movable rod (402), one end of the movable rod (402) penetrates the mounting groove (3), the bottom of the movable rod (402) abuts against the top of the circuit board body (1), the other end of the movable rod (402) is fixedly connected with a spring (403), and one end of the spring (403) is fixedly connected with one side of the inner wall of the fixed shell (401).

3. The connection structure of the energy storage circuit board according to claim 2, characterized in that: Two groups of pull rods (404) are slidably connected to one side of the inner wall of the two groups of fixed shells (401), one end of the pull rod (404) penetrates the fixed shell (401) and is fixedly connected with one end of the movable rod (402), and the spring (403) is movably sleeved on the outer wall of the pull rod (404).

4. The connection structure of the energy storage circuit board according to claim 3, characterized in that: The exposed ends of the two groups of pull rods (404) are fixedly connected with a connecting rod (6).

5. The connection structure of the energy storage circuit board according to claim 4, characterized in that: The end of the movable rod (402) away from the spring (403) is provided with a wedge-shaped part (7), the outer wall of the circuit board body (1) is provided with a wear-resistant coating (8), and the wear-resistant coating (8) is in sliding connection with the wedge-shaped part (7).

6. The connection structure of the energy storage circuit board according to claim 1, characterized in that: The inner top of the positioning frame (2) is provided with a guide hole (9) matched with the guide column (5), and the bottom end of the guide column (5) is inserted into the inner part of the guide hole (9).

7. The connection structure of the energy storage circuit board according to claim 1, characterized in that: The inner top of the positioning frame (2) is provided with a glue layer (10), and the bottom of the circuit board body (1) is fixedly bonded to the top of the glue layer (10).

8. The connection structure of the energy storage circuit board according to claim 1, characterized in that: The bottom of the circuit board body (1) is provided with a notch groove (11), and the inner part of the notch groove (11) is provided with a stepped groove (12).

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