Battery protection board test fixture and battery protection board test system

Abstract

The utility model relates to the technical field of battery protection board testing equipment, and discloses a battery protection board testing clamp and a battery protection board testing system.The battery protection board testing clamp comprises a base, a fixing seat, a binding post and a locking piece, a testing cavity is formed between the fixing seat and the base, and a wiring inlet is formed in the side wall of the fixing seat; the fixed seat is provided with a mounting channel communicated with the test cavity; the binding post has conductive performance and is movably arranged in the mounting channel, the first end of the binding post is suitable for entering and exiting the test cavity, and the second end of the binding post is suitable for being in conductive contact with a test wire entering the second wiring channel through the wiring inlet; and the locking piece is movably arranged in the mounting channel so as to lock and connect the test wire and the binding post. According to the utility model, product deformation and damage caused by high temperature generated by welding can be avoided; the battery protection plate cannot be contaminated by the welding material; the test efficiency is improved; and the lead can be reused after being detached, so that waste of lead materials is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing equipment, in particular to a battery protection board testing fixture and a battery protection board testing system. Background Art

[0002] Currently, before conducting electrical performance tests on PCM samples, it is necessary to first weld test leads on the B+ and B- nickel sheets, and then connect the test leads to relevant test instruments.

[0003] However, this wiring method has the following disadvantages:

[0004] 1. Soldering the test wire on the nickel sheet, the welding temperature is high, which can easily cause irreversible damage to the sample;

[0005] 2. When welding, welding materials, such as solder paste, need to be applied, which causes the sample to be contaminated with welding materials and cannot be removed, affecting external sales;

[0006] 3. There are many test samples and nickel sheets for multi-cell batteries. It is necessary to weld the leads for each nickel sheet, which takes a long time and has low test efficiency.

[0007] 4. The test line cannot be reused, resulting in waste of test lines. Utility Model Content

[0008] In view of this, the utility model provides a battery protection board test fixture and a battery protection board test system to solve the following technical problems: welding leads damage samples; samples are contaminated with welding materials, affecting external sales; test efficiency is low; and test lines are wasted.

[0009] In the first aspect, the utility model provides a battery protection board test fixture, including a base, a fixing base, a terminal post and a locking piece, the fixing base is arranged on the base, and a test cavity for placing the battery protection board to be tested is formed between the fixing base and the base; the fixing base is provided with a second wiring channel, the second wiring channel passes through the fixing base to form a wiring entrance on the side wall of the fixing base; the fixing base is also provided with an installation channel passing through the test cavity, the second wiring channel and the installation channel are arranged at an angle and connected; the terminal post has conductive properties, the terminal post is movably arranged in the installation channel, the first end of the terminal post is suitable for entering and exiting the test cavity, and the second end of the terminal post is suitable for conductive contact with the test line entering the second wiring channel through the wiring entrance; the locking piece is movably arranged in the installation channel to lock the test line and the terminal post.

[0010] Beneficial effects: During the test, the battery protection board to be tested is placed in the test cavity between the fixing seat and the base, the terminal is moved toward the direction close to the base and enters the test cavity, the terminal abuts against the battery protection board, and cooperates with the base to clamp the battery protection board, the test line of the test equipment is inserted into the second wiring channel, and the locking piece is moved along the installation channel until it abuts against the test line, the test line is fixed and locked to prevent the test line from moving. Since the terminal has conductive properties, the test line and the battery protection board are indirectly conductively connected through the terminal, thereby realizing the power-on test of the battery protection board. After the test is completed, the locking piece is first removed to remove the test line, and the terminal is moved out of the test cavity to remove the battery protection board. During the entire test process, since no welding is required, compared with the solution of directly welding the test line to the battery protection board, it has the following advantages:

[0011] 1. It can avoid product deformation and damage caused by high temperature generated by welding;

[0012] 2. The battery protection board will not be contaminated by welding materials, which will not affect the external sales of the product;

[0013] 3. During the test, you only need to adjust the terminal and the locking piece, which takes less time for preparation and improves the test efficiency. Especially for test samples with many nickel sheets for multiple batteries, each nickel sheet can be connected to the test fixture, which greatly improves the test efficiency.

[0014] 4. The test fixture provided in this application can be reused after disassembly, without causing waste of lead materials.

[0015] In an optional embodiment, the terminal post is provided with a first wiring channel and a locking channel, the first wiring channel and the locking channel are arranged at an angle and are connected; the first wiring channel is connected to the second wiring channel, the locking channel is coaxially arranged with the installation channel, the locking member is arranged in the locking channel, and the locking member is suitable for approaching or moving away from the bottom wall of the first wiring channel.

[0016] In an optional embodiment, an extension direction of the first wiring channel is perpendicular to an extension direction of the locking channel.

[0017] In an optional embodiment, the locking member includes a fastener, the inner wall of the installation channel is provided with threads, and the fastener is at least partially threadedly connected to the inner wall of the installation channel;

[0018] Alternatively, the inner wall of the locking channel is provided with threads, and the fastener is at least partially connected to the inner wall of the locking channel by threads.

[0019] In an optional embodiment, the installation channel includes a first connecting channel that cooperates with the terminal post, and the terminal post is movably disposed in the first connecting channel.

[0020] In an optional embodiment, the inner wall of the first connecting channel is provided with threads, the terminal post is provided with threaded sections, and the threaded sections of the terminal post are threadedly connected to the inner wall of the first connecting channel.

[0021] In an optional embodiment, the terminal post further includes a clamping section connected to one end of the threaded section, the installation channel further includes a second connecting channel cooperating with the clamping section, and the clamping section is suitable for passing through the second connecting channel into the test cavity.

[0022] In an optional embodiment, the diameter of the clamping section is smaller than the diameter of the threaded section, a first step surface is formed between the clamping section and the threaded section, the first connecting channel and the second connecting channel are connected, a second step surface is formed between the first connecting channel and the second connecting channel, and the first step surface is suitable for abutting and limiting with the second step surface.

[0023] In an optional implementation, the base is made of insulating material.

[0024] In a second aspect, the utility model also provides a battery protection board testing system, including a battery protection board testing fixture of any one of the above technical solutions.

[0025] Beneficial effect: Because the battery protection board test system includes a battery protection board test fixture, it has the same effect as the battery protection board test fixture and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a structural schematic diagram of a battery protection board test fixture from a first perspective according to an embodiment of the utility model;

[0028] Figure 2 It is a structural schematic diagram of a battery protection board test fixture from a second viewing angle according to an embodiment of the utility model;

[0029] Figure 3 for Figure 1 A right side view of the fixing base of the battery protection board test fixture shown in FIG.

[0030] Figure 4 for Figure 1 The left side view of the fixing base and the terminal of the battery protection board test fixture shown in FIG.

[0031] Figure 5 for Figure 1 A left side view of the terminal blocks of the battery protection board test fixture shown in FIG.

[0032] Figure 6 for Figure 1 A front view of the terminals of the battery protection board test fixture shown in FIG.

[0033] Figure 7 for Figure 1 A top view of the base of the battery protection board test fixture shown in ;

[0034] Figure 8 for Figure 1 Left side view of the base of the battery protection board test fixture shown in .

[0035] Description of reference numerals:

[0036] 1. Base; 101. Connection hole; 2. Fixing seat; 201. Test cavity; 202. First connection channel; 203. Second connection channel; 204. Second step surface; 205. Second wiring channel; 206. Threaded hole; 3. Terminal; 301. First wiring channel; 302. Locking channel; 303. Threaded section; 304. Pressing section; 305. First step surface; 4. Locking piece. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment 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.

[0038] Combine the following Figures 1 to 8 , describing an embodiment of the utility model.

[0039] According to an embodiment of the utility model, on the one hand, a battery protection board test fixture is provided, including a base 1, a fixing base 2, a terminal 3 and a locking piece 4, the fixing base 2 is arranged on the base 1, and a test cavity 201 for placing the battery protection board to be tested is formed between the fixing base 2 and the base 1; the fixing base 2 is provided with a second wiring channel 205, and the second wiring channel 205 passes through the fixing base 2 to form a wiring entrance on the side wall of the fixing base 2; the fixing base 2 is also provided with an installation channel that passes through the test cavity 201, and the second wiring channel 205 and the installation channel are arranged at an angle and connected; the terminal 3 has conductive properties, and the terminal 3 is movably arranged in the installation channel, the first end of the terminal 3 is suitable for entering and exiting the test cavity 201, and the second end of the terminal 3 is suitable for conductive contact with the test line entering the second wiring channel through the wiring entrance; the locking piece 4 is movably arranged in the installation channel to lock the test line and the terminal.

[0040] Beneficial effect: During the test, the battery protection board to be tested is placed in the test cavity between the fixing seat 2 and the base 1, the terminal 3 is moved toward the direction close to the base 1 and enters the test cavity 201, the terminal 3 abuts against the battery protection board, and cooperates with the base 1 to clamp the battery protection board, the test line of the test equipment is inserted into the first wiring channel 301 of the terminal 3, and then the locking member 4 is moved along the locking channel 302 until it abuts against the test line, the test line is fixed and locked to prevent the test line from moving. Since the terminal 3 has conductive properties, the test line and the battery protection board are indirectly conductively connected through the terminal 3, thereby realizing the power-on test of the battery protection board. After the test is completed, the locking member 4 is first disassembled to remove the test line, and the terminal 3 is moved out of the test cavity 201 to remove the battery protection board. During the entire test process, since welding is not required, compared with the solution of directly welding the test line to the battery protection board, it has the following advantages:

[0041] 1. It can avoid product deformation and damage caused by high temperature generated by welding;

[0042] 2. The battery protection board will not be contaminated by welding materials, which will not affect the external sales of the product;

[0043] 3. During the test, you only need to adjust the terminal 3 and the locking piece 4, which takes less time for preparation and improves the test efficiency. Especially for a large number of test samples and a large number of multi-cell battery nickel sheets, each nickel sheet can be connected to the test fixture, which greatly improves the test efficiency.

[0044] 4. The test fixture provided in this application can be reused after disassembly, without causing waste of lead materials.

[0045] In one embodiment, the terminal 3 is provided with a first wiring channel 301 and a locking channel 302, and the first wiring channel 301 and the locking channel 302 are arranged at an angle and connected; the first wiring channel 301 is connected to the second wiring channel 205, and the locking channel 302 is coaxially arranged with the installation channel, and the locking member 4 is arranged in the locking channel 302, and the locking member 4 is suitable for approaching or moving away from the bottom wall of the first wiring channel 301.

[0046] Specifically, the bottom wall of the first wiring channel 301 is the side wall away from the locking member. Figure 1 or Figure 5 In the orientation shown, the bottom wall of the first wiring channel 301 is the lower wall.

[0047] In one embodiment, an extension direction of the first wiring channel 301 is perpendicular to an extension direction of the locking channel 302 .

[0048] In this arrangement, the test line is inserted into the first wiring channel 301, and the locking member 4 is installed in the locking channel 302. Since the extension direction of the first wiring channel 301 is perpendicular to the extension direction of the locking channel 302, the test line and the locking member 4 are perpendicular, which makes it easy for the locking member 4 to apply pressure to the test line and lock the test line in the locking channel 302, preventing the test line from moving in the first wiring channel 301 and causing poor contact, thereby ensuring the stability of the test process.

[0049] In one embodiment, the locking member 4 comprises a fastener, the inner wall of the installation channel is provided with threads, and the fastener is at least partially threadedly connected to the inner wall of the installation channel;

[0050] Alternatively, the inner wall of the locking channel 302 is provided with threads, and the fastener is threadedly connected to the inner wall of the locking channel 302 .

[0051] There are two implementation modes here. In the first implementation mode, the terminal is a solid structure, the test line passes through the wiring entrance into the second wiring channel, and the test line is located at the second end of the terminal, that is, Figure 1 In the orientation shown, the top of the terminal post is used to lock the test line to the top of the terminal post through a locking member to achieve electrical connection between the test line and the terminal post.

[0052] The second implementation method, namely Figures 1 to 8 The locking member 4 is a fastener, and a thread is provided on the inner wall of the locking channel 302, so that the fastener and the inner wall of the locking channel 302 can be threadedly connected. With this arrangement, the locking member 4 can press and fix the test line in the first wiring channel 301, and it is reliable and stable. The threaded connection is adopted, which is convenient for disassembly and assembly.

[0053] After the test line is inserted into the first wiring channel 301 , the test line needs to be fixed by screwing the fastener toward the test line until the bottom of the fastener presses and fixes the test line in the first wiring channel 301 .

[0054] In one embodiment, the locking member 4 further includes a pin, and the pin cooperates with the inner wall of the locking channel 302. The pin is inserted into the locking channel 302 of the terminal 3 and pressed against the test line to fix the test line.

[0055] In one embodiment, the installation channel includes a first connection channel 202 that cooperates with the terminal post 3 , and the terminal post 3 can be movably disposed in the first connection channel 202 .

[0056] By setting the first connecting channel 202 on the fixing seat 2, and the first connecting channel 202 cooperates with the terminal 3, the terminal 3 is set in the first connecting channel 202, and the first connecting channel 202 can play an assembly limit role for the terminal 3, ensuring that the terminal 3 moves in the first connecting channel 202.

[0057] In one embodiment, the inner wall of the first connecting channel 202 is provided with threads, the terminal post 3 is provided with a threaded section 303 , and the threaded section 303 of the terminal post 3 is threadedly connected to the inner wall of the first connecting channel 202 .

[0058] The terminal 3 is provided with a threaded section 303, which can be matched with the inner wall thread of the first connection channel 202, and has a simple structure, is easy to manufacture, and is easy to disassemble and assemble the terminal 3. When the battery protection board to be tested is placed in the test cavity 201, the terminal 3 is twisted toward the base 1, and the terminal 3 is pressed against the battery protection board.

[0059] In one embodiment, the cross section of the first wiring channel 301 along its axial direction is elliptical. This configuration is compatible with test line structures of various specifications, including rectangular connectors and circular connectors, thereby improving the versatility of the battery protection board test fixture.

[0060] In one embodiment, the terminal 3 further includes a clamping section 304 connected to one end of the threaded section 303 , and the installation channel further includes a second connecting channel 203 cooperating with the clamping section 304 , and the clamping section 304 is suitable for passing through the second connecting channel 203 into the test cavity 201 .

[0061] The second connection channel 203 cooperates with the pressing section 304 of the terminal 3, and when the terminal 3 is twisted, the terminal 3 can be moved away from or close to the base 1, so as to enter and exit the test cavity 201. In the process of twisting the terminal 3, the threaded section 303 of the terminal 3 is threadedly connected with the inner wall of the first connection channel 202, and the pressing section 304 of the terminal 3 is slidably connected with the second connection channel 203.

[0062] In one embodiment, the diameter of the clamping section 304 is smaller than the diameter of the threaded section 303, a first step surface 305 is formed between the clamping section 304 and the threaded section 303, the first connecting channel 202 and the second connecting channel 203 are connected, a second step surface 204 is formed between the first connecting channel 202 and the second connecting channel 203, and the first step surface 305 is suitable for abutting and limiting with the second step surface 204.

[0063] With such arrangement, when the terminal 3 is screwed downward, the clamping section 304 of the terminal 3 can extend out of the second connecting channel 203 and enter the test cavity 201. When the terminal 3 continues to be screwed downward, there is an extreme position, that is, the first step surface 305 and the second step surface 204 abut against the limit position, and the terminal 3 cannot continue to move downward. In this way, on the one hand, it can be ensured that the terminal 3 will not fall off during the process of screwing downward, and on the other hand, it can be ensured that the terminal 3 will not be pressed down too tightly and cause damage to the battery protection board.

[0064] In one embodiment, the shape of the second connection channel 203 is adapted to the structure of the first connection channel 202, and the size of the second connection channel 203 is not less than the size of the first connection channel 202. This arrangement ensures that the first connection channel 301 is exposed when the terminal 3 moves toward the base 1, and ensures that the test line can be easily loaded into the first connection channel 301.

[0065] In one embodiment, the fixing base 2 is a block structure.

[0066] In one embodiment, both ends of the second wiring channel 205 pass through the fixing seat 2. In this way, one end is a wiring entrance for inserting the test line, and the other end can be used as a window to observe the connection of the test line, facilitate debugging, and ensure the reliability and stability of the conductive connection.

[0067] In one embodiment, the base 1 is made of insulating material.

[0068] In the related technical solutions, the test wire is directly welded on the battery protection board, which is easy to touch and cause short circuit during the test, and the safety is poor. In this embodiment, the base 1 is made of insulating material, which can effectively prevent the occurrence of short circuit during the test and improve the safety of the test.

[0069] In one embodiment, the fixing seat 2 and the base 1 are fastened together by bolts.

[0070] Specifically, a threaded hole 206 is provided on the fixing seat 2, and a connecting hole 101 is provided on the base 1. The fixing seat 2 and the base 1 are fixedly connected by tightening bolts.

[0071] The test fixture of the battery protection board provided in this embodiment has a simple structure and is easy to operate, and is convenient for conductively connecting the battery protection board and the test line. Since the terminal 3 is movable relative to the fixing base 2, the distance between the bottom end of the terminal 3 and the base 1 can be adjusted, so that it is used to clamp battery protection boards of different thicknesses, and has a wide range of applications and strong versatility.

[0072] According to an embodiment of the present utility model, on the other hand, a battery protection board testing system is also provided, comprising a battery protection board testing fixture of any one of the above technical solutions.

[0073] Because the battery protection board test system includes a battery protection board test fixture, it has the same effect as the battery protection board test fixture and will not be described in detail here.

[0074] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A battery protection board test fixture, characterized in that: include: Base (1); A fixing seat (2), the fixing seat (2) being arranged on the base (1), a test cavity (201) for placing a battery protection board to be tested is formed between the fixing seat (2) and the base (1); the fixing seat (2) is provided with a second wiring channel (205), the second wiring channel (205) passing through the fixing seat (2) to form a wiring entrance on the side wall of the fixing seat (2); the fixing seat (2) is also provided with a mounting channel passing through the test cavity (201), the second wiring channel (205) and the mounting channel being arranged at an angle and connected; A terminal (3), the terminal (3) having a conductive property, the terminal (3) being movably arranged in the installation channel, the first end of the terminal (3) being suitable for entering and exiting the test cavity (201), and the second end of the terminal (3) being suitable for being in conductive contact with a test line entering the second wiring channel through the wiring entrance; A locking member (4) is movably disposed in the installation channel to lock and connect the test line and the terminal.

2. The battery protection board test fixture according to claim 1, characterized in that: The terminal (3) is provided with a first wiring channel (301) and a locking channel (302); the first wiring channel (301) and the locking channel (302) are arranged at an angle and are connected; the first wiring channel (301) is connected with the second wiring channel (205); the locking channel (302) is coaxially arranged with the installation channel; the locking member (4) is arranged in the locking channel (302); the locking member (4) is suitable for approaching or moving away from the bottom wall of the first wiring channel (301).

3. The battery protection board test fixture according to claim 2, characterized in that: The extension direction of the first wiring channel (301) is perpendicular to the extension direction of the locking channel (302).

4. The battery protection board test fixture according to claim 2 or 3, characterized in that: The locking member (4) comprises a fastener, the inner wall of the installation channel is provided with threads, and at least a portion of the fastener is threadedly connected to the inner wall of the installation channel; Alternatively, the inner wall of the locking channel (302) is provided with threads, and the fastener is at least partially connected to the inner wall of the locking channel (302) by threads.

5. The battery protection board test fixture according to any one of claims 1 to 3, characterized in that: The installation channel comprises a first connection channel (202) matched with the terminal post (3), and the terminal post (3) is movably arranged in the first connection channel (202).

6. The battery protection board test fixture according to claim 5, characterized in that: The inner wall of the first connecting channel (202) is provided with threads, the terminal post (3) is provided with a threaded section (303), and the threaded section (303) of the terminal post (3) is threadedly connected to the inner wall of the first connecting channel (202).

7. The battery protection board test fixture according to claim 6, characterized in that: The terminal post (3) further includes a clamping section (304) connected to one end of the threaded section (303), and the installation channel further includes a second connecting channel (203) cooperating with the clamping section (304), and the clamping section (304) is suitable for passing through the second connecting channel (203) to enter the test cavity (201).

8. The battery protection board test fixture according to claim 7, characterized in that: The diameter of the clamping section (304) is smaller than the diameter of the threaded section (303); a first step surface (305) is formed between the clamping section (304) and the threaded section (303); the first connecting channel (202) and the second connecting channel (203) are connected; a second step surface (204) is formed between the first connecting channel (202) and the second connecting channel (203); the first step surface (305) is suitable for abutting and limiting with the second step surface (204).

9. The battery protection board test fixture according to any one of claims 1 to 3, characterized in that: The base (1) is made of insulating material.

10. A battery protection board testing system, characterized in that: A battery protection board testing fixture comprising any one of claims 1 to 9.

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