Power supply cabinet wire inspection tool and inspection method thereof

Abstract

The invention discloses a power cabinet wire detection tool and a detection method thereof, and belongs to the technical field of power 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 invention, 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] The invention relates to a power cabinet line inspection tool and an inspection method thereof, belonging to the technical field of power cabinet detection. Background Art

[0002] The wiring harness in the power cabinet usually contains a positive terminal and a negative terminal, and the wiring holes are set to multiple channels to meet different power requirements. The ends of the wiring harness need to be accurately connected to the corresponding points on the needle bed to ensure the normal transmission of current and the stable operation of the equipment.

[0003] However, in the actual production process, this connection method has obvious disadvantages. First, due to the large number of wiring holes in the power cabinet and the complicated connection operation between the end of the wire harness and the needle bed point, it is easy to cause incorrect wiring or point connection. If this incorrect wiring is not discovered and corrected in time, once it is applied to the battery cell charge and discharge test, it will directly affect the normal operation of the product and may even cause serious safety accidents, causing immeasurable damage to personnel and equipment.

[0004] To address this problem, existing operating methods usually rely on manual one-to-one testing of the power cabinet wiring harness and the end needle bed connection harness using a multimeter. However, as the number of equipment points continues to increase, the workload of this detection method has become increasingly heavy, placing extremely high demands on the operator's skills and patience. Long-term, high-intensity detection work can easily lead to operator fatigue, which in turn affects the accuracy of the measurement. Once the measurement deviates, it may cause serious consequences such as misconnected battery cells and overcharging, posing a threat to the quality and safety of the product. Summary of the invention

[0005] In order to solve the problems existing in the background technology, the present invention provides a power cabinet line inspection tool and an inspection method thereof.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a power supply cabinet line inspection tool, including a negative connection block support plate, a negative connection block, a positive connection block support plate, a positive connection block, an outer shell, a voltmeter and a resistor; the upper surface of the outer shell 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 provided on the negative connection block support plate; a plurality of positive connection blocks are fixedly provided on the positive connection block support plate; a plurality of negative connection blocks are arranged in one-to-one correspondence with a plurality of positive connection blocks, each negative connection block and the corresponding positive connection block constitute a group of connection blocks, each group of connection blocks is electrically connected to the corresponding resistor, each resistor is electrically connected to the corresponding voltmeter, and a plurality of resistors are arranged in series.

[0007] The upper surface of the outer shell is provided with two movable slide grooves arranged in parallel, 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 movable slide grooves.

[0008] A plurality of bottom support frames are fixed to the lower end of the outer shell.

[0009] A method for inspecting output current lines of a power cabinet line inspection tool of the present invention comprises the following steps:

[0010] S1: connect multiple resistors with the same resistance in series;

[0011] S2: Press down the points of the positive and negative wiring harnesses of the needle bed to contact and connect with the negative connection block and the positive connection block accordingly;

[0012] S3: Use currents of different magnitudes to perform constant current charging on all points;

[0013] S4: The voltmeter displays the actual voltage of the corresponding point in real time;

[0014] S5: Determine whether the output current line is connected incorrectly:

[0015] If the voltage value of the voltmeter is different from the theoretical value, it means that the corresponding output current line is connected incorrectly. Otherwise, it means that the output current line is not connected incorrectly.

[0016] A method for inspecting a power cabinet line inspection tool collection line of the present invention comprises the following steps:

[0017] S1: multiple resistors with different resistance values ​​connected in series;

[0018] S2: Press down the points of the positive and negative wiring harnesses of the needle bed to contact and connect with the negative connection block and the positive connection block accordingly;

[0019] S3: Use the same current to charge all points at a constant current;

[0020] S4: The voltmeter displays the actual voltage of the corresponding point in real time;

[0021] S5: Determine whether the output current line is connected incorrectly:

[0022] If the voltage value of the voltmeter is different from the theoretical value, it means that the corresponding acquisition line is connected incorrectly; otherwise, it means that the acquisition line is not connected incorrectly.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention realizes the collection and transmission of electrical signals at independent points, thereby accurately determining the wiring accuracy. It can not only detect the positive and negative wiring harness connections at multiple points at the same time, improve the convenience and safety of operation, reduce the demand for the number of operators and production costs, but also avoid the problems of detection misalignment, short circuit, open circuit, etc. under the traditional manual testing method, and improve the testing efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the power cabinet line inspection tool of the present invention;

[0026] Figure 2 yes Figure 1 The main view;

[0027] Figure 3 yes Figure 1 A top view of

[0028] Figure 4 yes Figure 1 Side view of

[0029] Figure 5 It is a schematic diagram of series connection of resistors;

[0030] Figure 6 It is a circuit principle diagram of the output current line test of the present invention;

[0031] Figure 7 It is a circuit principle diagram of the acquisition line test of the present invention. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] A power supply cabinet line inspection tool, comprising a negative connection block support plate 2, a negative connection block 3, a positive connection block support plate 4, a positive connection block 5, an outer shell 8, a voltmeter 9 and a resistor 10; the upper surface of the outer shell 8 is provided with a negative connection block support plate 2 and a positive connection block support plate 4 arranged in parallel; a plurality of evenly distributed and parallel negative connection blocks 3 are fixedly arranged on the negative connection block support plate 2; a plurality of evenly distributed and parallel positive connection blocks 5 are fixedly arranged on the positive connection block support plate 4; a plurality of the negative connection blocks 3 are arranged in one-to-one correspondence with a plurality of positive connection blocks 5, each negative connection block 3 and the corresponding positive connection block 5 constitute 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, and a plurality of resistors 10 are arranged in series through a resistor series line 11.

[0034] The upper surface of the outer shell 8 is provided with two parallel movable slide grooves 1, and the two ends of the negative connection block support plate 2 and the two ends of the positive connection block support plate 4 are respectively slidably connected to the corresponding movable slide grooves 1, so as to match the use requirements of different models of batteries.

[0035] A plurality of bottom support frames 7 arranged in an array are fixed to the lower end of the outer shell 8. The bottom support frames 7 enable the present invention to be fixed on the needle bed and are not affected by different battery models. The present invention can be directly placed on the needle bed without disassembling the needle bed, which is convenient for personnel to operate.

[0036] After connecting the multi-port wiring harness of the power cabinet with the multi-point wiring harness of the needle bed equipment, the manual switch presses the multi-point mechanism in the needle bed down to the positive and negative connection block device of the wire inspection tooling. After the multi-points of the equipment are matched one by one with the corresponding multi-points of the tooling, the wire inspection tooling collects the electrical signals of the independent points and transmits them to the voltmeter to determine the accuracy of the wiring.

[0037] A method for inspecting the output current line of a power cabinet line inspection tool of the present invention is as follows: Figure 6 As shown, the method comprises the following steps:

[0038] S1: multiple resistors with the same resistance value in series 10;

[0039] S2: Press down the needle bed so that the positive and negative electrode harnesses are in contact and connected with the negative electrode connection block 3 and the positive electrode connection block 5 correspondingly;

[0040] S3: Use currents of different magnitudes to perform constant current charging on all points;

[0041] S4: The voltmeter 9 displays the actual voltage of the corresponding point in real time;

[0042] S5: Determine whether the output current line is connected incorrectly:

[0043] According to the principle that when the resistance R is the same, the output voltage U is different if the input current I is different, if the voltage value of the voltmeter 9 is different from the theoretical value, it means that the corresponding output current line is connected incorrectly, otherwise, it means that the output current line is not connected incorrectly.

[0044] For example:

[0045] R 1 =R 2 =R 3 =R 4 ,I 1 =1,I 2 =2,I 3 =3,I 4 =4, then the theoretical value U 1 =1,U 2 =2,U 3 =3,U 4 =4.

[0046] If U 1 =2, U 2 =1 indicates that the output current lines of point 1 and point 2 are connected incorrectly.

[0047] The present invention provides a method for inspecting a power cabinet line inspection tooling acquisition line, such as Figure 7 As shown, the method comprises the following steps:

[0048] S1: multiple resistors with different resistance values ​​connected in series 10;

[0049] S2: Press down the needle bed so that the positive and negative electrode harnesses are in contact and connected with the negative electrode connection block 3 and the positive electrode connection block 5 correspondingly;

[0050] S3: Use the same current to charge all points at a constant current;

[0051] S4: The voltmeter 9 displays the actual voltage of the corresponding point in real time;

[0052] S5: Determine whether the output current line is connected incorrectly:

[0053] According to the principle that when the input series current I is the same, the resistance R is different, and the output voltage U is different, if the voltage value of the voltmeter 9 is different from the theoretical value, it means that the corresponding acquisition line is connected incorrectly; otherwise, it means that the acquisition line is not connected incorrectly.

[0054] For example:

[0055] I 1 =I 2 =I 3 =I 4 , R 1 =1, R 2 =2, R 3=3, R 4 =4, then the theoretical value U 1 =1,U 2 =2,U 3 =3,U 4 =4.

[0056] If U 1 , U 2 , U 3 , U 4 If it does not match the actual displayed voltage at the corresponding point, the acquisition lines at each point are connected incorrectly.

[0057] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A power cabinet line inspection tool, characterized by: The invention comprises 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), an outer shell (8), a voltmeter (9) and a resistor (10); the upper surface of the outer shell (8) is provided with a negative electrode connection block support plate (2) and a positive electrode connection block support plate (4) arranged in parallel; a plurality of negative electrode connection blocks (3) are fixedly arranged on the negative electrode connection block support plate (2); a plurality of positive electrode connection blocks (5) are fixedly arranged on the positive electrode connection block support plate (4); a plurality of negative electrode connection blocks (3) and a plurality of positive electrode connection blocks (5) are arranged in one-to-one correspondence, each negative electrode connection block (3) and a corresponding positive electrode connection block (5) form a group of connection blocks, each group of connection blocks is electrically connected to a corresponding resistor (10), each resistor (10) is electrically connected to a corresponding voltmeter (9), and a plurality of resistors (10) are arranged in series.

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

3. The power cabinet line inspection tool according to claim 1, characterized in that: A plurality of bottom support frames (7) are fixed to the lower end of the outer shell (8).

4. A method for inspecting the output current line of a power supply cabinet line inspection tool according to claim 2 or 3, characterized in that: The method comprises the following steps: S1: multiple resistors with the same resistance value connected in series (10); S2: Press down the points of the positive and negative electrode harnesses of the needle bed to contact and connect with the negative electrode connection block (3) and the positive electrode connection block (5) accordingly; S3: Use currents of different magnitudes to perform constant current charging on all points; S4: The voltmeter (9) displays the actual voltage of the corresponding point in real time; S5: Determine whether the output current line is connected incorrectly: If the voltage value of the voltmeter (9) is different from the theoretical value, it means that the corresponding output current line is connected incorrectly, otherwise, it means that the output current line is not connected incorrectly.

5. A method for inspecting the acquisition line of the power cabinet line inspection tool according to claim 2 or 3, characterized in that: The method comprises the following steps: S1: multiple resistors (10) with different resistance values ​​connected in series; S2: Press down the points of the positive and negative electrode harnesses of the needle bed to contact and connect with the negative electrode connection block (3) and the positive electrode connection block (5) accordingly; S3: Use the same current to charge all points at a constant current; S4: The voltmeter (9) displays the actual voltage of the corresponding point in real time; S5: Determine whether the output current line is connected incorrectly: If the voltage value of the voltmeter (9) is different from the theoretical value, it means that the corresponding acquisition line is connected incorrectly; otherwise, it means that the acquisition line is not connected incorrectly.

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