Power supply cabinet wire inspection tool

Abstract

A power supply cabinet wire detection tool belongs to the technical field of power supply cabinet detection. A negative connecting block supporting plate and a positive connecting block supporting plate are arranged on the upper surface of the outer shell in parallel; a plurality of cathode connecting blocks are arranged on the cathode connecting block supporting plate; a plurality of anode connecting blocks are arranged on the anode connecting block supporting plate; the plurality of negative electrode connecting blocks and the plurality of positive electrode connecting blocks are arranged in a one-to-one correspondence manner, each negative electrode connecting block and the corresponding positive electrode connecting block form a group of connecting blocks, each group of connecting blocks is electrically connected with the corresponding resistor, each resistor is electrically connected with the corresponding voltmeter, and the plurality of resistors are connected in series. According to the utility model, acquisition and transmission of electric signals at independent point positions are realized, positive and negative wire harness wiring at multiple point positions can be detected at the same time, the operation convenience and safety are improved, the requirement for the number of operators and the production cost are reduced, the problems of detection dislocation, short circuit, open circuit and the like in a traditional manual test mode are avoided, and the detection efficiency is improved. And the test efficiency and accuracy are improved.

Description

Technical Field

[0001] This utility model relates to a power cabinet line inspection tooling, belonging to the field of power cabinet testing technology. Background Technology

[0002] Wiring harnesses in power supply cabinets typically include positive and negative terminals, and multiple wiring ports are provided to accommodate different power requirements. The ends of the wiring harnesses need to be precisely connected to the corresponding points on the needle bed to ensure proper current transmission and stable equipment operation.

[0003] However, this connection method has significant drawbacks in actual production. First, due to the numerous wiring holes in the power cabinet and the complex connection operation between the wire harness ends and the needle bed points, incorrect wiring or misconnection of points is prone to occur. If such incorrect wiring is not detected and corrected in time, it will directly affect the normal operation of the product once applied to the cell charging and discharging test, and may even cause serious safety accidents, resulting in incalculable damage to personnel and equipment.

[0004] To address this issue, existing methods typically rely on manual inspection using a multimeter to check the power cabinet wiring harness and the terminal needle bed connection harness one-to-one. However, with the increasing number of equipment points, this inspection method becomes increasingly labor-intensive, placing extremely high demands on the operator's skills and patience. Prolonged, high-intensity inspection work can easily lead to operator fatigue, thus affecting measurement accuracy. Measurement deviations can result in serious consequences such as misconnected battery cells and overcharging, threatening product quality and safety. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a power cabinet line inspection tool.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a power cabinet line inspection fixture, comprising a negative connection block support plate, a negative connection block, a positive connection block support plate, a positive connection block, a housing, a voltmeter, and a resistor; the upper surface of the housing is provided with a negative connection block support plate and a positive connection block support plate arranged in parallel; a plurality of negative connection blocks are fixedly arranged on the negative connection block support plate; a plurality of positive connection blocks are fixedly arranged on the positive connection block support plate; the plurality of negative connection blocks and the plurality of positive connection blocks are arranged in a one-to-one correspondence, each negative connection block and its corresponding positive connection block form a group of connection blocks, each group of connection blocks is electrically connected to a corresponding resistor, each resistor is electrically connected to a corresponding voltmeter, and the plurality of resistors are connected in series.

[0007] The upper surface of the outer casing is provided with two parallel sliding grooves, and the two ends of the negative electrode connection block support plate and the two ends of the positive electrode connection block support plate are respectively slidably connected to the corresponding sliding grooves.

[0008] The lower end of the outer shell is fixed with multiple bottom support frames.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This invention enables the acquisition and transmission of electrical signals at independent points, thereby accurately determining the accuracy of wiring. It not only simultaneously detects the positive and negative wiring harnesses at multiple points, improving operational convenience and safety, and reducing the number of operators and production costs, but also avoids problems such as misalignment, short circuits, and open circuits inherent in traditional manual testing methods, thus improving testing efficiency and accuracy. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the power cabinet line inspection tooling of this utility model;

[0012] Figure 2 yes Figure 1 The main view;

[0013] Figure 3 yes Figure 1 Top view;

[0014] Figure 4 yes Figure 1 Side view;

[0015] Figure 5 This is a schematic diagram of resistors connected in series;

[0016] Figure 6 This is the circuit schematic diagram for testing the output current line of this utility model;

[0017] Figure 7 This is the circuit schematic diagram of the data acquisition line test of this utility model. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0019] A power cabinet line inspection fixture includes a negative connection block support plate 2, a negative connection block 3, a positive connection block support plate 4, a positive connection block 5, a housing 8, a voltmeter 9, and a resistor 10. The upper surface of the housing 8 is provided with the negative connection block support plate 2 and the positive connection block support plate 4 arranged in parallel. Multiple negative connection blocks 3 are fixedly arranged in parallel on the negative connection block support plate 2. Multiple positive connection blocks 5 are fixedly arranged in parallel on the positive connection block support plate 4. The multiple negative connection blocks 3 and the multiple positive connection blocks 5 are arranged in a one-to-one correspondence. Each negative connection block 3 and the corresponding positive connection block 5 form a group of connection blocks. Each group of connection blocks is electrically connected to the corresponding resistor 10. Each resistor 10 is electrically connected to the corresponding voltmeter 9 through a resistor parallel connection line 6. The multiple resistors 10 are connected in series through a resistor series connection line 11.

[0020] The upper surface of the outer casing 8 is provided with two parallel sliding grooves 1. The two ends of the negative electrode connecting block support plate 2 and the two ends of the positive electrode connecting block support plate 4 are respectively slidably connected to the corresponding sliding grooves 1, thereby matching the usage requirements of different battery models.

[0021] The lower end of the outer shell 8 is fixed with multiple arrayed bottom support frames 7. The bottom support frames 7 fix the present invention to the needle bed, which is not affected by different battery models. It can be placed directly on the needle bed without disassembling the needle bed, which is convenient for personnel to operate.

[0022] After connecting the multi-port harness of the power cabinet to the multi-point harness of the needle bed equipment, manually press the multi-point mechanism in the needle bed down onto the positive and negative terminal connection block of the line inspection fixture using a manual switch. After the multi-point of the equipment is matched one by one with the corresponding multi-point of the fixture, the electrical signal of the independent point is collected by the line inspection fixture and transmitted to the voltmeter to determine the accuracy of the wiring.

[0023] This utility model discloses a method for inspecting the output current lines of a power cabinet wiring inspection fixture, such as... Figure 6 As shown, the method includes the following steps:

[0024] S1: Multiple resistors with the same resistance value are connected in series (10).

[0025] S2: Press down on the positive and negative electrode wire harnesses and make contact with the corresponding negative electrode connection block 3 and positive electrode connection block 5;

[0026] S3: Use different currents to charge all points with constant current respectively;

[0027] S4: Voltmeter 9 displays the actual voltage at the corresponding point in real time;

[0028] S5: Determine if the output current line is connected incorrectly.

[0029] Based on the principle that different input currents I result in different output voltages U when the resistance R is the same, if the voltage value of voltmeter 9 is different from the theoretical value, it indicates that the corresponding output current line is connected incorrectly; otherwise, it indicates that the output current line is connected correctly.

[0030] For example:

[0031] If R1=R2=R3=R4, I1=1, I2=2, I3=3, I4=4, then the theoretical values ​​are U1=1, U2=2, U3=3, U4=4.

[0032] If U1 = 2 and U2 = 1, it indicates that the output current lines at point one and point two are connected incorrectly.

[0033] This utility model discloses a method for inspecting the data acquisition line of a power cabinet cable inspection fixture, such as... Figure 7 As shown, the method includes the following steps:

[0034] S1: Multiple resistors with different resistance values ​​are connected in series (10);

[0035] S2: Press down on the positive and negative electrode wire harnesses and make contact with the corresponding negative electrode connection block 3 and positive electrode connection block 5;

[0036] S3: Use the same current to charge all points with a constant current;

[0037] S4: Voltmeter 9 displays the actual voltage at the corresponding point in real time;

[0038] S5: Determine if the output current line is connected incorrectly.

[0039] Based on the principle that with the same input series current I, different resistances R will result in different output voltages U, if the voltage value of voltmeter 9 is different from the theoretical value, it indicates that the corresponding acquisition line is connected incorrectly; otherwise, it indicates that the acquisition line is not connected incorrectly.

[0040] For example:

[0041] If I1 = I2 = I3 = I4, R1 = 1, R2 = 2, R3 = 3, R4 = 4, then the theoretical values ​​are U1 = 1, U2 = 2, U3 = 3, U4 = 4.

[0042] If the voltage displayed at points U1, U2, U3, and U4 does not match the actual voltage at the corresponding points, then the acquisition lines at each point are connected incorrectly.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A power cabinet line inspection fixture, characterized in that: The device includes a negative electrode connection block support plate (2), a negative electrode connection block (3), a positive electrode connection block support plate (4), a positive electrode connection block (5), a housing (8), a voltmeter (9), and a resistor (10). The upper surface of the housing (8) is provided with a negative electrode connection block support plate (2) and a positive electrode connection block support plate (4) arranged in parallel. Multiple negative electrode connection blocks (3) are fixedly provided on the negative electrode connection block support plate (2). Multiple positive electrode connection blocks (5) are fixedly provided on the positive electrode connection block support plate (4). Multiple negative electrode connection blocks (3) and multiple positive electrode connection blocks (5) are arranged in a one-to-one correspondence. Each negative electrode connection block (3) and the corresponding positive electrode connection block (5) form a group of connection blocks. Each group of connection blocks is electrically connected to the corresponding resistor (10). Each resistor (10) is electrically connected to the corresponding voltmeter (9). Multiple resistors (10) are connected in series.

2. The power cabinet line inspection fixture according to claim 1, characterized in that: The upper surface of the outer shell (8) is provided with two parallel sliding grooves (1), and the two ends of the negative electrode connecting block support plate (2) and the two ends of the positive electrode connecting block support plate (4) are respectively slidably connected to the corresponding sliding grooves (1).

3. The power cabinet line inspection fixture according to claim 1, characterized in that: The lower end of the outer shell (8) is fixed with multiple bottom support frames (7).

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