A linear-to-board connecting assembly for energy storage

Abstract

The utility model relates to electric connector manufacturing technical field especially a kind of line pair board connecting assembly for energy storage. Adapter is composed of insulator and electrically conductive adapter piece. Electrically conductive adapter piece is embedded in the inside of insulator, and first conducting end and second conducting end are oppositely distributed on it. First cable plug and first conducting end realize plug-in cooperation, and second cable plug and second conducting end realize plug-in cooperation. In the convenience of maintenance, without disassembling or loosening adapter, only need to pull out the plug of the cable to be maintained corresponding, operation can be quickly completed;In the running safety, circuit conduction completely depends on the plug-in cooperation of first cable plug and first conducting end, second cable plug and second conducting end, effectively reduces the probability of poor contact;In the space adaptability, through the coaxial butt joint design of first cable plug, adapter, second cable plug, overall structure is more compact, especially suitable for small-sized energy storage equipment with limited internal space.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector manufacturing technology, and in particular to a wire-to-board connection assembly for energy storage. Background Technology

[0002] In the internal and external circuit architecture of an energy storage system, power transmission relies on power cables, and signal acquisition relies on control cables. Energy storage cables of different specifications and functions need to be flexibly connected through adapters to ensure stable transmission of power and signals.

[0003] Current mainstream cable adapter solutions in the energy storage field have significant limitations in structural design and application adaptability. The core problem lies in the mismatch between the adapter's port connection method and the actual wiring harness connection requirements. In existing technologies, to adapt to the copper busbar-type busbar structure within energy storage systems, adapters generally adopt an asymmetrical design of "front-end connection to the wiring harness, rear-end copper busbar lead-out." This design has revealed numerous problems in practical applications, specifically: 1) When it is necessary to replace or repair a specific cable, the fixing structure of the adapter and the copper busbar must be disassembled first. The operation process is cumbersome and time-consuming, which seriously affects the maintenance efficiency. 2) The adapter is fastened to the copper busbar with bolts. During long-term operation, the bolts are easily loosened due to vibration and temperature changes, which can lead to increased contact resistance and localized heating, posing a safety hazard. 3) The internal space of miniaturized energy storage equipment is limited, and the copper busbar layout and adapter installation are already constrained by space. The "back-end copper busbar lead-out" design further compresses the wiring harness space and increases the installation difficulty. Furthermore, the rigid connection between the copper busbar and the adapter requires extremely high installation accuracy. Once the installation deviation exceeds the allowable range, it is easy to cause the adapter to deform under stress, which will inevitably affect the connection stability.

[0004] Therefore, it is urgent for technical personnel to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a wire-to-board connection component for energy storage, which aims to solve the problems in the existing design, such as the need to disassemble the copper busbar fixing structure, which leads to cumbersome maintenance, easy loosening of the connection, which causes heat generation and safety hazards, and the compression of wiring space and high installation accuracy requirements of the rear copper busbar. The new design enables rapid wire harness docking and improves connection stability and safety.

[0006] This utility model relates to a line-to-plate connection assembly for energy storage, used to realize the connection and conversion between a first cable and a second cable, which includes an adapter, a first cable plug and a second cable plug; The adapter includes an insulator and a conductive connector; the conductive connector is embedded inside the insulator and has a first conductive end and a second conductive end arranged opposite each other along the same axis; One end of the first cable plug is fixedly connected to the first cable, and the other end is detachably plugged into the first conductive end. One end of the second cable plug is fixedly connected to the second cable, and the other end is detachably plugged into the second conductive terminal.

[0007] As a further improvement to the technical solution disclosed in this utility model, along its axial direction, the insulator is integrally connected by a first plug-in portion, a middle positioning portion, and a second plug-in portion in sequence; the interior of the first plug-in portion forms a first receiving cavity adapted to the first cable plug, and the interior of the second plug-in portion forms a second receiving cavity adapted to the second cable plug; the outer diameter of the middle positioning portion is larger than the outer diameters of the first plug-in portion and the second plug-in portion, and its outer peripheral wall is provided with mounting holes for cooperating with external mounting structures.

[0008] As a further improvement to the technical solution disclosed in this utility model, the outer side wall of the first plug-in portion extends outward in the circumferential direction to form a first anti-disengagement flange and a first radial shoulder; the first anti-disengagement flange is located at the free end of the first plug-in portion; the inner diameter of the first cable plug is in transitional fit with the outer diameter of the first radial shoulder, and a first limiting groove adapted to the first anti-disengagement flange is formed on its hole wall; when the first cable plug and the first plug-in portion are fully inserted into each other, the first anti-disengagement flange elastically expands and engages in the first limiting groove, and the first radial shoulder is in contact with the inner wall of the first cable plug. The outer side wall of the second connector extends outward in the circumferential direction to form a second anti-disengagement flange and a second radial shoulder; the second anti-disengagement flange is located at the free end of the second connector; the inner diameter of the second cable plug is in transition fit with the outer diameter of the second radial shoulder, and a second limiting groove adapted to the second anti-disengagement flange is formed on its hole wall; when the second cable plug and the second connector are fully inserted, the second anti-disengagement flange elastically expands and engages in the second limiting groove, and the second radial shoulder is in contact with the inner wall of the second cable plug.

[0009] As a further improvement to the technical solution disclosed in this utility model, the adapter also includes a first protective end cap and a second protective end cap; the first protective end cap is fitted and fixed to the free end of the first conductive end; the second protective end cap is fitted and fixed to the free end of the second conductive end.

[0010] As a further improvement of the technical solution disclosed in this utility model, on the outer side wall of the first conductive end, at a set distance from its free end, a first annular limiting groove is formed extending outward in the circumferential direction; the inner wall of the first protective end cover is formed with a first hook protrusion that is adapted to the first annular limiting groove, and the number of the first hook protrusions is at least 2, and they are evenly distributed along the circumference of the first protective end cover. On the outer side wall of the second conductive end, at a set distance from its free end, a second annular limiting groove is formed extending outward in the circumferential direction; the inner wall of the second protective end cover is formed with a second hook protrusion that matches the second annular limiting groove, and the number of the second hook protrusions is at least 2, and they are evenly distributed in the circumferential direction of the second protective end cover. When the first protective end cap is fitted onto the first conductive end, the first hook protrusion engages in the first annular limiting groove to achieve axial limiting; when the second protective end cap is fitted onto the second conductive end, the second hook protrusion engages in the second annular limiting groove to achieve axial limiting.

[0011] In practical applications, the energy storage line-to-plate connection assembly disclosed in this utility model can achieve at least the following beneficial technical effects, specifically: 1) When maintenance or replacement of either the first or second cable is required during the operation of the energy storage system, personnel do not need to disassemble the entire structure of the adapter, nor do they need to loosen the adapter itself. To maintain the first cable, simply unplug and plug in the first cable connector; to maintain the second cable, simply unplug and plug in the second cable connector. The entire operation process requires no complex procedures, is simple and quick, significantly reducing the time spent on cable maintenance and effectively improving the convenience of system maintenance and emergency response efficiency. 2) In the actual process of achieving circuit conduction, current transmission relies entirely on the insertion and cooperation of the first cable plug and the first conducting terminal of the adapter, and the insertion and cooperation of the second cable plug and the second conducting terminal of the adapter. No other auxiliary connection structure is needed, which can effectively reduce the probability of poor contact between the first cable plug and the first conducting terminal, and between the second cable plug and the second conducting terminal, thereby reducing the risk of local heating caused by abnormal increase in contact resistance from the root cause. 3) In actual installation scenarios, the first cable plug, adapter, and second cable plug are connected sequentially along the same axis. The coaxial layout makes the structure of the entire energy storage wire-to-board connection component more compact. There is no need to reserve extra redundant space for component installation, which can save more of the wiring area inside the energy storage device, especially suitable for the limited internal space of miniaturized energy storage devices. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1This is a three-dimensional schematic diagram of the energy storage line-to-plate connection assembly disclosed in this utility model (the first cable and the second cable are shown in the form of double-dotted lines).

[0014] Figure 2 This is a three-dimensional schematic diagram of the adapter in the energy storage line-to-plate connection assembly disclosed in this utility model (with hidden lines visible).

[0015] Figure 3 yes Figure 2 Top view.

[0016] Figure 4 yes Figure 3 AA sectional view.

[0017] Figure 5 This is a three-dimensional schematic diagram of the conductive adapter in the energy storage line-to-plate connection assembly disclosed in this utility model.

[0018] Figure 6 This is a three-dimensional schematic diagram of the first protective end cap in the energy storage line-to-plate connection assembly disclosed in this utility model.

[0019] Figure 7 This is a three-dimensional schematic diagram of the second protective end cap in the energy storage line-to-plate connection assembly disclosed in this utility model.

[0020] Figure 8 This is a three-dimensional schematic diagram of the first cable plug in the energy storage line-to-plate connection assembly disclosed in this utility model.

[0021] Figure 9 yes Figure 8 Top view.

[0022] Figure 10 yes Figure 9 BB cross-sectional view.

[0023] Figure 11 This is a three-dimensional schematic diagram of the second cable plug in the energy storage line-to-plate connection assembly disclosed in this utility model.

[0024] Figure 12 yes Figure 11 Top view.

[0025] Figure 13 yes Figure 12 CC section view.

[0026] Figure 14 yes Figure 1 Top view.

[0027] Figure 15 yes Figure 14 DD sectional view.

[0028] Figure 16 yes Figure 15 A magnified view of part of I.

[0029] Figure 17 yes Figure 15 A magnified view of part II.

[0030] 1-Adapter; 11-Insulator; 111-First plug-in portion; 1111-First receiving cavity; 1112-First anti-detachment flange; 1113-First radial shoulder; 112-Center positioning portion; 113-Second plug-in portion; 1131-Second receiving cavity; 1132-Second anti-detachment flange; 1133-Second radial shoulder; 12-Conductive adapter; 121-First conductive end; 1211-First annular limiting groove; 122-Second conductive end; 1221-Second annular limiting groove; 13-First protective end cap; 131-First hook protrusion; 14-Second protective end cap; 141-Second hook protrusion; 2-First cable plug; 21-First limiting slot; 3-Second cable plug; 31-Second limiting slot. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to specific embodiments. Figure 1 A three-dimensional schematic diagram of the energy storage line-to-plate connection assembly disclosed in this utility model is shown. It can be seen that it mainly consists of several parts, such as an adapter 1, a first cable plug 2, and a second cable plug 3, which form a stable conductive link from the first cable to the second cable, realizing flexible connection and switching of different cables in the energy storage system.

[0032] The adapter 1 serves the dual function of current conduction and structural support, and includes an insulator 11 and a conductive adapter 12 (such as...). Figure 2 (As shown). The insulator 11 is made of high-strength insulating plastic, preferably PA66+25%GF, possessing good temperature resistance and insulation performance; the conductive adapter 12 is made of high-conductivity copper alloy, preferably T2 copper, and is entirely embedded inside the insulator 11 without being exposed, with only two ends forming a first conductive end 121 and a second conductive end 122 arranged opposite each other along the same axis (as shown). Figures 2-5(As shown). One end of the first cable plug 2 is fixedly connected to the first cable by crimping, and the other end forms a detachable plug-in fit with the first conductive end 121. One end of the second cable plug 3 is also fixedly connected to the second cable by crimping, and the other end forms a detachable plug-in fit with the second conductive end 122. In this way, on the one hand, the connection between the first cable, the second cable and the adapter 1 does not require disassembly of the adapter body. During subsequent maintenance, it is only necessary to directly plug and unplug the corresponding first cable plug 2 or second cable plug 3, which greatly simplifies the operation process and significantly improves the convenience of maintenance. On the other hand, when installing and maintaining, the staff does not need to distinguish the left and right compatibility of the first cable plug 2 and the second cable plug 3, reducing the complexity of operation and further improving the flexibility of the component.

[0033] Similarly, Figures 2-4 As shown, along its axial direction, the insulator 11 is integrally injection molded from a first plug-in portion 111, a central positioning portion 112, and a second plug-in portion 113. The interior of the first plug-in portion 111 forms a first receiving cavity 1111 adapted to the first cable plug 2; the interior of the second plug-in portion 113 forms a second receiving cavity 1131 adapted to the second cable plug 3. The outer diameter of the central positioning portion 112 is larger than the outer diameters of the first plug-in portion 111 and the second plug-in portion 113, forming a stepped structure. Its outer peripheral wall is evenly distributed with mounting holes (compatible with standard mounting bolts) for mating with external mounting structures. The adapter 1 can be securely fixed to the mounting bracket of the energy storage device using bolts. Furthermore, the first cable plug 2, the adapter 1, and the second cable plug 3 are sequentially connected along the same axis, resulting in a compact overall layout that more effectively saves wiring space inside the energy storage device, making it particularly suitable for miniaturized energy storage devices with limited internal space.

[0034] like Figures 2-4 As shown, the outer side wall of the first plug portion 111 extends outward in the circumferential direction to form a first anti-disengagement flange 1112 and a first radial shoulder 1113; the first anti-disengagement flange 1112 is located at the free end of the first plug portion 111. When inserted, the first anti-disengagement flange 1112 naturally deforms to smoothly pass through the inner hole of the first cable plug 2, and automatically springs back after reaching its position; the first radial shoulder 1113 is spaced a set distance from the first anti-disengagement flange 1112, and its outer diameter is larger than the outer diameter of the main body of the first plug portion 111. Correspondingly, the inner diameter of the first cable plug 2 and the outer diameter of the first radial shoulder 1113 are in transition fit, which can significantly reduce radial wobble after insertion, and a first limiting groove 21 adapted to the first anti-disengagement flange 1112 is formed on its hole wall (e.g., ...). Figures 8-10 (As shown). When the first cable plug 2 and the first insertion part 111 are fully inserted, the first anti-disengagement flange 1112 elastically expands and engages with the first limiting groove 21, forming a reliable axial anti-disengagement lock. At the same time, the first radial shoulder 1113 contacts and abuts against the inner wall of the first cable plug 2 (as shown). Figures 14-16 As shown), this fills the insertion gap and prevents external dust from entering the first receiving cavity 1111. Similarly, the outer side wall of the second insertion part 113 extends outward in the circumferential direction to form a second anti-disengagement flange 1132 and a second radial shoulder 1133, and a second limiting groove 31 is formed on the hole wall of the second cable plug 3 (as shown). Figures 11-13 (As shown). When the second cable plug 3 and the second insertion part 113 are fully inserted, the second anti-disengagement flange 1132 elastically expands and engages with the second limiting groove 31, forming a reliable axial anti-disengagement lock. At the same time, the second radial shoulder 1133 contacts and abuts against the inner wall of the second cable plug 3 (as shown). Figure 17 (As shown). During maintenance, only appropriate axial tension needs to be applied to the first cable plug 2 and the second cable plug 3 corresponding to the first cable and the second cable that need to be replaced to complete the plugging and unplugging operation. There is no need to disassemble the overall structure of the adapter 1. The operation steps are simple and quick, which greatly shortens the maintenance time and improves the convenience of system maintenance and emergency response efficiency.

[0035] To prevent the risk of accidental electric shock to workers due to the exposure of the first conductive terminal 121 and the second conductive terminal 122 when the adapter 1 is not equipped with a plug, the adapter 1 is also equipped with a first protective end cover 13 and a second protective end cover 14 (e.g., Figures 2-5 (As shown in the image). Specifically, as... Figure 5 As shown, on the outer wall of the first conductive end 121, at a predetermined distance from its free end, a first annular limiting groove 1211 extends outward in the circumferential direction to form a first annular limiting groove 1211; as shown Figure 6 As shown, the inner wall of the first protective end cap 13 is formed with a first hook protrusion 131 that matches the first annular limiting groove 1211. Multiple first hook protrusions 131 are evenly distributed circumferentially along the first protective end cap 13 to ensure balanced force distribution and thus prevent the end cap from loosening due to unilateral force. Similarly... Figure 5 As shown, on the outer wall of the second conductive end 122, at a predetermined distance from its free end, a second annular limiting groove 1221 extends outward in the circumferential direction to form a second annular limiting groove 1221; as shown Figure 7 As shown, the inner wall of the second protective end cap 14 is formed with a plurality of second hook protrusions 141 evenly distributed circumferentially. When the adapter 1 is plugged into the first cable plug 2 and the second cable plug 3, the first protective end cap 13 completely covers the first conductive end 121 and the second protective end cap 14 completely covers the second conductive end 122, completely isolating the human body from contact with the conductive adapter 12; combined with the overall insulation characteristics of the insulator 11 itself, the risk of electric shock to workers who accidentally touch the conductive end during installation or maintenance can be effectively eliminated.

[0036] As Figures 14-17As shown, when the first protective end cap 13 is installed, the first hook protrusion 131 on its inner wall deforms due to the elasticity of the plastic material, smoothly passing over the outer wall of the first conductive end 121. After the first hook protrusion 131 aligns with the first annular limiting groove 1211, the first hook protrusion 131 automatically springs back and locks into the first annular limiting groove 1211, achieving a stable axial limit on the first conductive end 121 for the first protective end cap 13, ensuring that the first protective end cap 13 will not easily loosen. Similarly, when the second protective end cap 14 is installed, the second hook protrusion 141 on its inner wall deforms due to the elasticity of the plastic, passing over the outer wall of the second conductive end 122. After aligning with the second annular limiting groove 1221, it automatically springs back and locks into the second annular limiting groove 1221, completing the reliable limit on the second conductive end 122 for the second protective end cap 14.

[0037] The assembly steps for wire-to-plate connection components for energy storage are roughly as follows: S1. Fix the adapter 1 to the mounting bracket of the energy storage device through the mounting hole of the central positioning part 112, and tighten the mounting bolts to the preset torque using a torque wrench (ensure that the adapter is not loose); at the same time, check whether the first protective end cover 13 and the second protective end cover 14 are installed in place. S2. Align the plug end of the first cable plug 2 with the first plug part 111, apply axial thrust to slowly insert the plug until you hear a "click" sound (indicating that the first anti-disengagement flange 1112 is engaged in the first limiting groove 21). At this time, the first radial shoulder 1113 touches the inner wall of the first cable plug 2. S3. Following the same operating procedure as the first cable connection, insert the second cable plug 3 into the second connector 113 to complete the second cable connection. At this time, the first cable, the conductive adapter 12 and the second cable can form a complete conductive link. S4. Gently pull the first cable and the second cable in the opposite direction to confirm that the first cable plug 2 and the second cable plug 3 are not loose, and ensure that the current transmission channel is unobstructed.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wire-to-plate connection assembly for energy storage, used to connect and switch between a first cable and a second cable, characterized in that, Includes an adapter, a first cable plug, and a second cable plug; The adapter includes an insulator and a conductive adapter; the conductive adapter is embedded inside the insulator and has a first conductive end and a second conductive end arranged opposite to each other along the same axis; One end of the first cable plug is fixedly connected to the first cable, and the other end is detachably plugged into the first conductive end. One end of the second cable plug is fixedly connected to the second cable, and the other end is detachably plugged into the second conductive end.

2. The energy storage line-to-plate connection assembly according to claim 1, characterized in that, Along its axial direction, the insulator is integrally connected from a first plug-in portion, a middle positioning portion, and a second plug-in portion; the interior of the first plug-in portion forms a first receiving cavity adapted to the first cable plug, and the interior of the second plug-in portion forms a second receiving cavity adapted to the second cable plug; the outer diameter of the middle positioning portion is larger than the outer diameters of the first plug-in portion and the second plug-in portion, and its outer peripheral wall is provided with mounting holes for cooperating with external mounting structures.

3. The energy storage line-to-plate connection assembly according to claim 2, characterized in that, The outer side wall of the first plug portion extends outward in the circumferential direction to form a first anti-disengagement flange and a first radial shoulder; the first anti-disengagement flange is located at the free end of the first plug portion; the inner diameter of the first cable plug is in transition fit with the outer diameter of the first radial shoulder, and a first limiting groove adapted to the first anti-disengagement flange is formed on its hole wall; when the first cable plug and the first plug portion are fully inserted into each other, the first anti-disengagement flange elastically expands and engages in the first limiting groove, and the first radial shoulder is in contact with the inner wall of the first cable plug. The outer side wall of the second plug extends outward in the circumferential direction to form a second anti-disengagement flange and a second radial shoulder; the second anti-disengagement flange is located at the free end of the second plug; the inner diameter of the second cable plug is in transition fit with the outer diameter of the second radial shoulder, and a second limiting groove adapted to the second anti-disengagement flange is formed on its hole wall; when the second cable plug and the second plug are fully inserted into each other, the second anti-disengagement flange elastically expands and engages in the second limiting groove, and the second radial shoulder is in contact with the inner wall of the second cable plug.

4. The energy storage line-to-plate connection assembly according to any one of claims 1-3, characterized in that, The adapter further includes a first protective end cap and a second protective end cap; the first protective end cap is fitted and fixed to the free end of the first conductive end; the second protective end cap is fitted and fixed to the free end of the second conductive end.

5. The energy storage line-to-plate connection assembly according to claim 4, characterized in that, On the outer side wall of the first conductive end, at a set distance from its free end, a first annular limiting groove is formed extending outward in the circumferential direction; the inner wall of the first protective end cover is formed with a first hook protrusion adapted to the first annular limiting groove, and the number of the first hook protrusions is at least 2, and they are evenly distributed along the circumference of the first protective end cover. On the outer side wall of the second conductive end, at a set distance from its free end, a second annular limiting groove is formed extending outward in the circumferential direction; the inner wall of the second protective end cover is formed with a second hook protrusion adapted to the second annular limiting groove, and the number of the second hook protrusions is at least 2, and they are evenly distributed along the circumference of the second protective end cover. When the first protective end cap is fitted onto the first conductive end, the first hook protrusion engages in the first annular limiting groove to achieve axial limiting; when the second protective end cap is fitted onto the second conductive end, the second hook protrusion engages in the second annular limiting groove to achieve axial limiting.

Images