Branching device
By designing a wire splitting device including a junction box and a wire stripping mechanism, the problem of low efficiency and easy short circuit in the manual operation of the stripping battery module in the prior art is solved, and simplified wiring, improved efficiency and ensured test results are achieved. The effect of accuracy.
Patent Information
- Application Number
- CN202323431915.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-15
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2033-12-15
AI Technical Summary
In the prior art, the battery module voltage line is manually operated to strip the battery module and connected to the charge and discharge tester, which is inefficient and complicated to operate, which can easily lead to short circuits and insulation failures, affecting the test results.
A wire splitting device is designed, including a junction box and a wire stripping mechanism. The first end of the junction box is provided with a plurality of first wiring units that can be electrically connected to the voltage line, and the second end is provided with a plurality of charge and discharge testers that can be provided with a charge and discharge tester. The second wiring unit electrically connected, the wire stripping mechanism includes a fixing member and a cutting member, which can automatically peel off the insulating layer of the voltage wire, simplifying the wiring process.
Through the wire splitting device, wiring operations are simplified, wiring efficiency is improved, short circuits and insulation failure are avoided, and the accuracy of test results is ensured.
Smart Images
Figure CN222514598U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery module testing equipment, in particular to a line splitting device. Background Art
[0002] In recent years, lithium-ion batteries have been widely used in new energy vehicles. A battery module is a battery combination in which battery cells are connected in series and parallel and have a pair of positive and negative output terminals. When testing the battery module, it is necessary to connect the cell voltage line in the battery module to the voltage sampling line of the charge and discharge tester in order to interact with the charge and discharge tester. The existing wiring method is manual operation. The cell voltage line of the battery module is stripped by wire strippers to expose the copper wire. The alligator clip of the voltage sampling line of the charge and discharge tester is clamped on the wire and wrapped with insulating tape. However, the wire stripping efficiency of manual operation is low and the operation is complicated. It is also easy to expose the wire when wrapping the insulating tape. During high and low temperature tests, the insulating tape is also easy to lose its viscosity and cause insulation failure, affecting the test results. Therefore, a wire splitting device is urgently needed to solve the above problems. Utility Model Content
[0003] One purpose of the utility model is to:
[0004] A wire splitting device is provided, which uses a junction box as an intermediate medium for electrically connecting a voltage line with a charge and discharge tester, and at the same time adds a wire stripping mechanism to simplify wiring operations, improve wiring efficiency, and avoid wiring short circuits.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A line splitting device is used for voltage testing of a battery module, wherein the battery module comprises a plurality of battery cells, each of which is provided with a voltage line, and the line splitting device comprises:
[0007] A junction box, wherein the junction box is made of insulating material, a first end of the junction box is provided with a plurality of first wiring units that can be electrically connected to the voltage line, a second end of the junction box is provided with a plurality of second wiring units that can be electrically connected to the charge and discharge tester, the first wiring units are connected to the second wiring units in a one-to-one correspondence, and the first wiring units and the second wiring units are both isolated;
[0008] A wire stripping mechanism is arranged on the first wiring unit, and the wire stripping mechanism includes a fixing member and a cutting member, the fixing member can be pressed against the outer periphery of the voltage line to fix the voltage line, and the cutting member can cut the insulation layer of the voltage line to strip the insulation layer of the voltage line.
[0009] Preferably, the first wiring unit includes a conductive block, an insulating pressure plate and a fastener, a wire pressing cavity for inserting the copper conductor of the voltage line is provided between the conductive block and the insulating pressure plate, the fastener is passed through the insulating pressure plate and the fastener is threadedly connected to the conductive block, the connection depth between the fastener and the conductive block is adjustable, and the fastener can drive the insulating pressure plate to move toward the conductive block to press the copper conductor of the voltage line against the conductive block.
[0010] Preferably, the first wiring unit is provided with a wire stripping groove, which is connected to the wire pressing cavity, and the fixing member and the cutting member are arranged at intervals along any side wall of the wire stripping groove, and the fixing member and the cutting member can both be extended and retracted toward the other side wall of the wire stripping groove to press the voltage line against the side wall of the wire stripping groove and cut the insulation layer of the voltage line.
[0011] Preferably, the wire stripping mechanism further comprises a fixing control button and a cutting control button, wherein the fixing control button can control the extension and retraction of the fixing member, and the cutting control button can control the extension and retraction of the cutting member.
[0012] Preferably, a wire accommodating groove is provided on a side wall of the wire stripping groove away from the cutting member, and the wire accommodating groove is communicated with the wire pressing cavity.
[0013] Preferably, the fastener is a fastening screw, and the fastening screw is made of PC plastic or ABS plastic.
[0014] Preferably, the second wiring unit comprises a conductive rod and an insulating spacer, the conductive rod is connected to the conductive block, and the insulating spacer is used to isolate adjacent conductive rods.
[0015] Preferably, the insulating spacer is made of PC plastic or ABS plastic.
[0016] Preferably, the insulating spacer is sleeved on the outer periphery of the conductive rod, a wiring cavity capable of inserting a wire of the charge and discharge tester is provided inside the insulating spacer, and the insulating spacer is connected to the junction box.
[0017] Preferably, the insulating spacer is a plate-shaped structure, the insulating spacer is disposed between two adjacent conductive bars and the insulating spacer is connected to the junction box.
[0018] The beneficial effects of the utility model are:
[0019] The utility model provides a wire splitting device for voltage testing of a battery module. The battery module comprises a plurality of battery cells, each of which is provided with a voltage line. The wire splitting device comprises a junction box and a wire stripping mechanism. A first end of the junction box is provided with a plurality of first wiring units which can be electrically connected to the voltage line. The first wiring units are connected to the voltage line one by one, and the first wiring units are isolated to avoid short circuit caused by contact of adjacent voltage lines. The first wiring units are also provided with a wire stripping mechanism, which comprises a fixing member and a cutting member. The fixing member can be pressed against the outer periphery of the voltage line to fix the voltage line, and the cutting member can cut the insulation layer of the voltage line to strip the insulation layer of the voltage line, thereby simplifying the wire stripping process, eliminating the need for an operator to use wire strippers to perform wire stripping operations, and the operation is simple and convenient with higher efficiency. The second end of the junction box is provided with a plurality of second wiring units that can be electrically connected to the charge and discharge tester. The second wiring units are arranged in isolation, and each second wiring unit is individually connected to a wire of the charge and discharge tester to avoid short circuit caused by the wires of the charge and discharge tester touching each other and affecting the test results. At the same time, the first wiring unit is connected to the second wiring unit in a one-to-one correspondence, and the battery module can be electrically connected to the charge and discharge tester through the first wiring unit and the second wiring unit. The branching device serves as an intermediate medium for electrically connecting the voltage line and the charge and discharge tester, which can simplify the wiring operation, improve the wiring efficiency, and avoid the short circuit affecting the test results. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The utility model is further described in detail below according to the accompanying drawings and embodiments;
[0021] Figure 1 It is the first axonometric view of the line dividing device;
[0022] Figure 2 It is a second axonometric view of the line dividing device;
[0023] Figure 3 for Figure 2 A magnified view of part A;
[0024] Figure 4 It is the third axonometric drawing of the line dividing device;
[0025] Figure 5 for Figure 4 Enlarged view of part B.
[0026] In the figure:
[0027] 100. Junction box;
[0028] 1. First wiring unit; 11. Conductive block; 12. Insulation pressing plate; 13. Fastener; 14. Wire stripping slot; 15. Wire storage slot;
[0029] 2. Second wiring unit; 21. Conductive rod; 22. Insulating spacer; 23. Transparent window;
[0030] 31. Fixing part; 32. Cutting part; 33. Fixing control button; 34. Cutting control button. DETAILED DESCRIPTION
[0031] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0034] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0035] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.
[0036] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.
[0037] like Figures 1 to 5 As shown, a wire splitting device is provided for voltage testing of a battery module. The battery module includes a plurality of battery cells, each of which is provided with a voltage line. The wire splitting device includes a junction box 100 and a wire stripping mechanism. A plurality of first wiring units 1 electrically connected to the voltage line are provided at the first end of the junction box 100. The plurality of first wiring units 1 are isolated and arranged. The first wiring units 1 are connected to the voltage line in a one-to-one correspondence to avoid short circuit caused by contact between adjacent voltage lines. A plurality of second wiring units 2 electrically connected to a charge and discharge tester are provided at the second end of the junction box 100. The plurality of second wiring units 2 are isolated and arranged. Each second wiring unit 2 is individually connected to a wire of the charge and discharge tester. To avoid short circuit of the wires of the charge and discharge tester, the first wiring unit 1 and the second wiring unit 2 are connected one by one. The battery module can be electrically connected to the charge and discharge tester through the first wiring unit 1 and the second wiring unit 2. The branching device serves as an intermediate medium for electrically connecting the voltage line and the charge and discharge tester. The junction box 100 is made of PC plastic or ABS plastic and other materials with good insulation and flame retardant properties. The junction box 100 is used to separate each first wiring unit 1 and each second wiring unit 2, thereby improving the insulation performance of the branching device and ensuring that one first wiring unit 1 is electrically connected to one second wiring unit 2, thereby avoiding line short circuit affecting the voltage test result.
[0038] like Figures 1 to 5 The wire stripping mechanism is arranged on the first wiring unit 1, and the wire stripping mechanism includes a fixing member 31 and a cutting member 32. The fixing member 31 can be pressed against the outer periphery of the voltage line to fix the voltage line, and the cutting member 32 can cut the insulation layer of the voltage line to strip off the insulation layer of the voltage line, so that the copper wire at the connection of the voltage line is exposed, and the copper wire of the voltage line contacts the first wiring unit 1, thereby realizing the electrical connection between the voltage line and the first wiring unit 1.
[0039] Exemplarily, the first wiring unit 1 includes a conductive block 11, an insulating pressure plate 12 and a fastener 13. A pressure line cavity for inserting a copper conductor of a voltage line is provided between the conductive block 11 and the insulating pressure plate 12. The fastener 13 is passed through the insulating pressure plate 12 and is threadedly connected to the conductive block 11. The connection depth between the fastener 13 and the conductive block 11 is adjustable. The fastener 13 is connected to the insulating pressure plate 12. The fastener 13 can drive the insulating pressure plate 12 to move toward the conductive block 11 to press the copper conductor of the voltage line against the conductive block 11. The conductive block 11 is made of conductive materials such as copper or iron, and the insulating pressure plate 12 is made of insulating materials such as PC plastic or ABS plastic. The insulating pressure plate 12 is made of good and flame-retardant materials. When the copper conductor of the voltage line is inserted into the wire pressing cavity, the fastener 13 is rotated to adjust the connection depth between the fastener 13 and the conductive block 11. The fastener 13 drives the insulating pressure plate 12 to move toward the copper conductor of the voltage line until the copper conductor of the voltage line is pressed against the conductive block 11, thereby realizing electrical connection between the voltage line and the first wiring unit 1. At the same time, the insulating pressure plate 12 can fix the position of the voltage line to avoid deviation of the voltage line during the voltage test and ensure good contact between the voltage line and the conductive block 11. The insulating pressure plate 12 can also prevent the copper conductor of the voltage line from being exposed at the outer end to avoid contact by operators during the test, thereby improving the safety performance of the line splitter.
[0040] Furthermore, the fastener 13 is a fastening screw, which is made of a material with good insulation and flame retardancy such as PC plastic or ABS plastic. The operator can tighten the fastening screw with a wrench to increase the pressure of the insulating pressure plate 12 on the copper conductor of the voltage line, thereby further improving the connection strength between the voltage line and the first wiring unit 1. The fastener 13 can also play an insulating and flame retardant role, thereby further improving the safety performance of the line distribution device.
[0041] like Figures 2 to 5 As shown, the first wiring unit 1 is provided with a wire stripping groove 14, which is connected to the wire pressing cavity, and the fixing member 31 and the cutting member 32 are arranged at intervals along any side wall of the wire stripping groove 14. The fixing member 31 and the cutting member 32 can both extend and retract along the other side wall of the wire stripping groove 14 to press the voltage line against the side wall of the wire stripping groove 14 and cut the insulation layer of the voltage line.
[0042] Furthermore, a wire accommodating groove 15 is provided on the side wall of the wire stripping groove 14 away from the cutting piece 32, and the wire accommodating groove 15 is connected to the wire pressing cavity. The fixing piece 31 can press the voltage line against the side wall of the wire stripping groove 14, and at the same time, the cutting piece 32 pushes the connecting end of the voltage line to be embedded in the wire accommodating groove 15. When the outer periphery of the voltage line abuts against the side wall of the wire accommodating groove 15, the cutting piece 32 cuts the insulating layer of the voltage line. The fixing piece 31 can fix the position of the voltage line to prevent the voltage line from shifting during the cutting process. The wire accommodating groove 15 can prevent the cutting piece 32 from completely cutting off the voltage line, thereby ensuring that the cutting piece 32 can only cut the insulating layer of the voltage line.
[0043] Furthermore, the cutting member 32 and the fixing member 31 can be completely hidden in the wire stripping box when retracted, so as to prevent the cutting member 32 from scratching the insulation layer of the voltage line or scratching the operator.
[0044] Exemplarily, the wire stripping mechanism further includes a fixing control button 33 and a cutting control button 34, wherein the fixing control button 33 can control the extension and retraction of the fixing member 31, and the cutting control button 34 can control the extension and retraction of the cutting member 32. In actual use, the connection end of the voltage line is placed in the wire stripping groove 14, the fixing control button 33 is pressed to drive the fixing member 31 to extend toward the voltage line, and the voltage line is pressed against the side wall of the wire stripping groove 14, the cutting control button 34 is pressed to drive the cutting member 32 to extend toward the voltage line, and the insulation layer of the voltage line is cut, the fixing control button 33 and the cutting control button 34 are pressed to retract the fixing member 31 and the cutting member 32, the voltage line is rotated to cut the insulation layer on the other side, and after stripping the insulation layer, the exposed copper wire of the voltage line is inserted into the wire pressing cavity, the fastener 13 is twisted to drive the insulating pressing plate 12 to press against the copper wire of the voltage line, and the fastener 13 is tightened to complete the fixed connection between the voltage line and the first wiring unit 1, simplifying the wire stripping process, and no need for the operator to use wire stripping pliers to perform the wire stripping operation, which is simple and convenient to operate and more efficient.
[0045] like Figures 1 to 5 As shown, the second wiring unit 2 includes a conductive rod 21 and an insulating spacer 22. The conductive rod 21 is electrically connected to the conductive block 11. The insulating spacer 22 is used to isolate adjacent conductive rods 21. The insulating spacer 22 is made of PC plastic or ABS plastic or other materials with good insulation and flame retardancy.
[0046] In this embodiment, a crocodile clip is provided at the connection end of the lead of the charge and discharge tester. The crocodile clip is clamped on the outer circumference of the conductive rod 21 to complete the electrical connection between the charge and discharge tester and the second wiring unit 2 .
[0047] In other embodiments, the copper wire of the charge and discharge tester wire may be wound around the conductive rod 21 by stripping off the insulation layer of the charge and discharge tester wire.
[0048] Exemplarily, the insulating spacer 22 is sleeved on the outer periphery of the conductive rod 21 and is connected to the junction box 100. The insulating spacer 22 is provided with a wiring cavity for inserting the alligator clip of the charge and discharge tester. Furthermore, the length of the insulating spacer 22 is greater than the length of the conductive rod 21, so that the conductive part of the alligator clip can be completely hidden in the insulating spacer 22, thereby increasing the insulation performance of the line splitter and preventing the alligator clips from contacting each other and affecting the test results. At the same time, it also prevents the operator from contacting the conductive part during the voltage test, thereby improving the safety performance of the line splitter.
[0049] In other embodiments, the insulating spacer 22 is configured as a plate-shaped structure, the insulating spacer 22 is disposed between two adjacent conductive bars 21 , and the insulating spacer 22 is connected to the junction box 100 .
[0050] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims
1. A line splitting device for voltage testing of a battery module, wherein the battery module comprises a plurality of battery cells, each of which is provided with a voltage line, characterized in that: The line splitting device comprises: A junction box (100), the junction box (100) being made of insulating material, a first end of the junction box (100) being provided with a plurality of first junction units (1) capable of being electrically connected to the voltage line, a second end of the junction box (100) being provided with a plurality of second junction units (2) capable of being electrically connected to a charge and discharge tester, the first junction units (1) being connected to the second junction units (2) in a one-to-one correspondence, and the first junction units (1) and the second junction units (2) being both isolated from each other; A wire stripping mechanism, the wire stripping mechanism being arranged on the first wiring unit (1), the wire stripping mechanism comprising a fixing member (31) and a cutting member (32), the fixing member (31) being able to press against the outer periphery of the voltage line to fix the voltage line, and the cutting member (32) being able to cut the insulation layer of the voltage line to strip the insulation layer of the voltage line.
2. The line splitting device according to claim 1, characterized in that: The first wiring unit (1) comprises a conductive block (11), an insulating pressure plate (12) and a fastener (13); a pressure cavity for inserting the copper conductor of the voltage line is provided between the conductive block (11) and the insulating pressure plate (12); the fastener (13) is passed through the insulating pressure plate (12) and the fastener (13) is threadedly connected to the conductive block (11); the connection depth between the fastener (13) and the conductive block (11) is adjustable; the fastener (13) can drive the insulating pressure plate (12) to move toward the conductive block (11) so as to press the copper conductor of the voltage line against the conductive block (11).
3. The line splitting device according to claim 2, characterized in that: The first wiring unit (1) is provided with a wire stripping groove (14), the wire stripping groove (14) is connected to the wire pressing cavity, the fixing member (31) and the cutting member (32) are arranged at intervals along any side wall of the wire stripping groove (14), and the fixing member (31) and the cutting member (32) can both be extended and retracted toward the other side wall of the wire stripping groove (14) to press the voltage line against the side wall of the wire stripping groove (14) and cut the insulation layer of the voltage line.
4. The line splitting device according to claim 3, characterized in that: The wire stripping mechanism further comprises a fixing control button (33) and a cutting control button (34); the fixing control button (33) can control the extension and retraction of the fixing member (31); and the cutting control button (34) can control the extension and retraction of the cutting member (32).
5. The line splitting device according to claim 3, characterized in that: A wire accommodating groove (15) is provided on the side wall of the wire stripping groove (14) away from the cutting piece (32), and the wire accommodating groove (15) is communicated with the wire pressing cavity.
6. The line splitting device according to any one of claims 2 to 5, characterized in that: The fastener (13) is a fastening screw, and the fastening screw is made of PC plastic or ABS plastic.
7. The line splitting device according to claim 2, characterized in that: The second wiring unit (2) comprises a conductive rod (21) and an insulating spacer (22), wherein the conductive rod (21) is connected to the conductive block (11), and the insulating spacer (22) is used to isolate adjacent conductive rods (21).
8. The line splitting device according to claim 7, characterized in that: The insulating spacer (22) is made of PC plastic or ABS plastic.
9. The line splitting device according to claim 8, characterized in that: The insulating spacer (22) is sleeved on the outer periphery of the conductive rod (21), a wiring cavity capable of inserting a wire of the charge and discharge tester is provided in the insulating spacer (22), and the insulating spacer (22) is connected to the junction box (100).
10. The line splitting device according to claim 8, characterized in that: The insulating spacer (22) is a plate-shaped structure; the insulating spacer (22) is arranged between two adjacent conductive bars (21) and the insulating spacer (22) is connected to the junction box (100).