Power supply product insulation test tool

Abstract

The utility model discloses an insulation test tool for a power supply product, which belongs to the technical field of electronics and comprises a PCB (printed circuit board). The PCB is provided with two input ports b in one-to-one correspondence with input ports a of a to-be-tested power supply product, a plurality of output ports b in one-to-one correspondence with output ports a of the to-be-tested power supply product, and a plurality of grounding ports b in one-to-one correspondence with grounding ports a of the to-be-tested power supply product. Each grounding port b corresponds to more than one output port b, and each grounding port b is in short circuit with more than one output port b corresponding to the grounding port b; an input plug is arranged on the PCB; the input plug is electrically connected with the input port b, the output port b and the grounding port b; and an input port a, an output port a and a grounding port a in the to-be-tested power supply product are communicated with an input port b, an output port b and a grounding port b on the PCB through input plugs. According to the utility model, the complexity of the wire harness is reduced, the tool volume is reduced, the insulation test is facilitated, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electronic technology field, concretely relates to a power product insulation test frock. BACKGROUND

[0002] In the development process of military power products, in order to ensure the reliability of the delivered product, electrical performance test is a crucial link. Because the power product is a closed structure and a small port design, it is necessary to lead the test port (including the input port, the output port and the ground port) inside the power product to the outside through the electrical performance test frock, so as to facilitate the connection of the test device. The electrical performance test frock includes a frock circuit board matched with a specific power product model and a load board, so that the test port of the power product can be led to the load board through the frock circuit board, and then connected to the test device.

[0003] Insulation test, as a key part of power product comprehensive test, aims to verify whether the insulation of the power product meets the safety standards. Insulation test includes three key tests: insulation performance test between the input port inside the power product and the power product shell, insulation performance test between each output port inside the power product and the power product shell, and insulation performance test between the output ports. According to the insulation test specification, the output port used for insulation test must be short-circuited with its corresponding ground port.

[0004] The existing insulation test is carried out through the electrical performance test frock. Due to the short-circuit design of the electrical performance test frock, the insulation test operation is complicated, and the electrical performance test frock is large in size, has many wire harnesses and complex layout (such as some ports used for insulation test are distributed on the frock circuit board and the load board, and the load board also includes ports unrelated to insulation test), which not only increases the preparation time before test, but also increases the difficulty of wire harness management and maintenance.

[0005] Therefore, a frock specially used for insulation test is needed, which needs to reduce the test ports, so as to improve the efficiency and convenience of insulation test. UTILITY MODEL CONTENTS

[0006] Therefore, the utility model provides a power product insulation test frock, which reduces the complexity of wire harness, reduces the size of the frock, facilitates insulation test and improves production efficiency.

[0007] The utility model is realized through the following technical solutions:

[0008] A power product insulation test frock, comprising: a PCB board;

[0009] The PCB is provided with two input ports b corresponding to the input ports a of the power supply product to be tested, several output ports b corresponding to the output ports a of the power supply product to be tested, and several ground ports b corresponding to the ground ports a of the power supply product to be tested.

[0010] Each ground port b corresponds to more than one output port b, and each ground port b shorts more than one output port b corresponding thereto.

[0011] The PCB is further provided with an input connector; the input connector is electrically connected with the input ports b, the output ports b and the ground ports b.

[0012] The input ports a inside the power supply product to be tested are connected to the input ports b on the PCB through the input connector, the output ports a are connected to the output ports b on the PCB through the input connector, and the ground ports a are connected to the ground ports b on the PCB through the input connector.

[0013] Further, the input connector comprises several pins a.

[0014] The several pins a correspond one-to-one to the pins b for insulation test on the interface of the power supply product to be tested.

[0015] The several pins a and the input connector correspond one-to-one to the input ports b, the output ports b and the ground ports b, and are electrically connected.

[0016] Further, when the ground port b corresponds to multiple output ports b, each ground port b shorts any output port b corresponding thereto.

[0017] The multiple output ports b corresponding to the same ground port b are electrically connected.

[0018] Further, it further comprises an output integration device.

[0019] The output integration device comprises one or more connector rows and several conductive contacts.

[0020] Each connector row is processed with several mounting grooves.

[0021] The conductive contacts are mounted in the mounting grooves.

[0022] One conductive contact is electrically connected with two input ports b; among the remaining conductive contacts, each conductive contact is electrically connected with one ground port b.

[0023] Further, the conductive contacts are arranged at intervals in the mounting grooves.

[0024] Further, when two or more connector rows are used, the two connector rows are arranged in a stacked manner along the height direction and are fixed.

[0025] Further, when using two or more connector blocks, the conductive contacts on the upper and lower connector blocks are arranged staggered.

[0026] Advantages:

[0027] (1) The power supply product insulation test tool of the utility model, each ground port b corresponds to one or more output ports b, each ground port b is short-circuited with one or more output ports b corresponding thereto through connecting line, the tool leads the port required for power supply test to the PCB board, and insulation test is facilitated; The insulation test tool is specially used for insulation test, and the volume is small, the structure is simple, the original test tool harness complex, the output end is more, the problem of easy to appear wrong test, missing test and other causes time and energy is solved. Meanwhile, the insulation test tool connects the multiple common ground output ports b to the ground port b corresponding thereto, only needs to carry out insulation test between input port b and shell, between input port b and each ground port b and between two ground ports b, compared with the original test, not only reduces the port quantity, but also can simplify the complex harness, thereby reducing the insulation test process, can save manpower, improve test accuracy, and further improve production efficiency.

[0028] (2) The power supply product insulation test tool of the utility model, when the ground port b corresponds to multiple output ports b, each ground port b is short-circuited with any output port b corresponding thereto, and the multiple output ports b corresponding to the same ground port b are electrically connected through connecting line, the connection mode can simplify the layout of the wire, can reduce the friction and physical damage between the wires on the PCB board, can better control the distance and direction between the wires, thereby improving the reliability of the circuit and reducing signal interference.

[0029] (3) The power supply product insulation test tool of the utility model further includes an output integration device, can integrate several connecting lines together, makes wiring more convenient and orderly, makes insulation test more convenient, and further reduces the confusion and error during wiring, thereby improving test efficiency.

[0030] (4) The power supply product insulation test tool of the utility model, the conductive contacts are arranged in the mounting groove, can avoid the short circuit caused by the accidental touch between the left and right adjacent two conductive contacts, thereby causing the damage of the power supply product.

[0031] (5) The power supply product insulation test tool of the utility model, when using two or more connector blocks, the two connector blocks are arranged in a stacked manner along the height direction, can reduce the occupied space of the insulation test tool.

[0032] (6) The utility model discloses a power product insulation test tool, and the conductive contact patch on the upper and lower connector row is staggered arrangement, can avoid the short circuit of the miscontact between the two adjacent conductive contact patches, thereby causing the damage of power product. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the definition drawing of the PCB board of the utility model;

[0034] Figure 2 It is the plan view of the output integrated device of the utility model;

[0035] Figure 3 It is the three-dimensional view of the output integrated device of the utility model;

[0036] Among them, 1-PCB board, 11-input connector, 2-connection line, 3-output integrated device, 31-connector row, 32-conductive contact patch. DETAILED DESCRIPTION

[0037] The utility model is described in detail below in combination with the drawings and examples.

[0038] Example 1:

[0039] The embodiment provides a power product insulation test tool for leading out a plurality of ports A (the definition of port A of different models of power products is different) inside the power product to be tested for insulation test, so as to carry out insulation test. The plurality of ports A include two input ports a, a plurality of output ports a and a plurality of ground ports a. Each ground port a corresponds to more than one output port a. When one ground port a corresponds to a plurality of output ports a, it indicates that the plurality of output ports a are common ground (that is, different output ports a share the same ground reference point).

[0040] As shown in Figures 1 to 3 The insulation test tool includes: a PCB board 1, a plurality of connection lines 2 and an output integrated device 3.

[0041] The PCB board 1 is provided with a plurality of ports B. The plurality of ports B include: input ports b corresponding to the input ports a one by one, output ports b corresponding to the output ports a one by one and ground ports b corresponding to the ground ports a one by one. The corresponding relationship between the output ports b and the ground ports b is consistent with the corresponding relationship between the output ports a and the ground ports a of the power product to be tested (that is, the common ground condition of the output ports b is consistent with the ground condition of the output ports a). Each ground port b is short-circuited with more than one output port b corresponding thereto through the connection line 2.

[0042] The PCB board 1 is also provided with an input connector 11 for connecting the interface of the power supply product to be tested (through which the power supply product to be tested is connected to other products, and which contains a plurality of pins b electrically connected to all ports inside the power supply product to be tested), so that the PCB board 1 and the power supply product to be tested are in communication. The input connector 11 is provided with a plurality of pins a corresponding to the pins b corresponding to the ports A on the power supply product to be tested. At the same time, the pins a on the input connector 11 correspond to and are electrically connected to a plurality of ports B (i.e. input ports b, output ports b and ground ports b) on the PCB board 1. When the input connector 11 is inserted into the interface of the power supply product to be tested, the input connector 11 is electrically connected to a plurality of ports B (i.e. input ports b, output ports b and ground ports b) on the PCB board 1. The input connector 11 leads a plurality of ports A (i.e. input ports a, output ports a and ground ports a) of the power supply product to be tested to a plurality of ports B on the PCB board 1, i.e. the input ports a inside the power supply product to be tested are connected to the input ports b on the PCB board 1 through the input connector 11, the output ports a are connected to the output ports b on the PCB board through the input connector 11, and the ground ports a are connected to the ground ports b on the PCB board through the input connector 11.

[0043] As shown in Figure 2 and Figure 3 The output integrated device 3 includes one or more connector rows 31 and a plurality of conductive contacts 32.

[0044] Each connector row 31 is provided with a plurality of mounting grooves evenly spaced along the length direction of the connector row 31, which are used to mount the conductive contacts 32. One end of each conductive contact 32 is connected to the mounting groove, and the other end extends out of the connector row 31, facilitating the connection of the megohmmeter. In each connector row 31, the conductive contacts 32 are spaced apart in the mounting grooves. As an example, as shown in Figure 3 one mounting groove is left between every two conductive contacts 32.

[0045] When two or more connector rows 31 are used, the two connector rows 31 are arranged in a stacked manner in the height direction and are fixed by a screw rod. The conductive contacts 32 on the upper and lower connector rows 31 are arranged staggered to prevent short circuiting between the two conductive contacts 32.

[0046] One conductive contact 32 is electrically connected to two input ports b through the connecting line 2; and each of the remaining conductive contacts 32 is electrically connected to one ground port b through the connecting line 2. The output integrated device 3 can integrate a plurality of connecting lines 2 led out by the PCB board 1 together, making the wiring more convenient and orderly, further reducing the confusion and errors during wiring, thereby improving the testing efficiency.

[0047] The insulation test tool in the embodiment is connected in the following way:

[0048] In the embodiment, the test port of the power supply product to be tested is defined as: input port a: +27V port, -27V port, output port a: +5V port one, +5V port two, +5V port three, +10V port, -10V port, +12V port, +15V port, -15V port, and +5V port one, +12V port are grounded, +5V port three, +10V port, -10V port, +15V port, -15V port are grounded, and +5V port two is grounded alone, thus three grounding ports are needed. The three grounding ports are GND1, GND2 and GND3 respectively, and +5V port one, +12V port are grounded to GND1, +5V port three, +10V port, -10V port, +15V port, -15V port are grounded to GND2, and +5V port two is grounded to GND3.

[0049] As shown in Figure 1 The port definition of the PCB board 1 corresponds to the port definition of the power supply product to be tested one by one, that is, the input port b includes: +27V port, -27V port, the output port b includes: +5V port one, +5V port two, +5V port three, +10V port, -10V port, +12V port, +15V port, -15V port, and the grounding port b includes: GND1, GND2 and GND3.

[0050] In the PCB board 1, +5V port one and +12V port in the output port b are connected to GND1 through wires, +5V port three, +10V port, -10V port, +15V port and -15V port are connected to GND2 through wires, and +5V port two is connected to GND3 through wires.

[0051] Two input ports +27V port and -27V port each lead out a connecting line 2, and GDN1, GDN2 and GDN3 each lead out a connecting line 2.

[0052] The two connecting lines 2 led out by the two input ports are twisted to form a wire, and are connected to a certain conductive contact piece 32 in the output integrated device 3, which is conductive contact piece a. The three connecting lines 2 led out by GDN1, GDN2 and GDN3 are connected to the other three conductive contact pieces 32 one by one, which are conductive contact piece b, conductive contact piece c and conductive contact piece d respectively.

[0053] Since the number of output ports is reduced from eight (the product to be tested) to three, when conducting insulation tests, the megohmmeter only needs to measure the insulation resistance between the conductive contact piece a and the shell of the product to be tested, between the conductive contact piece b and the shell of the product to be tested, between the conductive contact piece c and the shell of the product to be tested, between the conductive contact piece d and the shell of the product to be tested, and between any two of the conductive contact pieces b, c and d, thereby reducing the number of measurements and accelerating the measurement efficiency.

[0054] Embodiment 2

[0055] The power product insulation test tool disclosed in the embodiment is based on the insulation test tool in Embodiment 1.

[0056] When the ground port b corresponds to multiple output ports b, different connection modes are adopted between the multiple output ports b and the common ground port b on the PCB board and between the output port b and the corresponding ground port b.

[0057] In the embodiment, the multiple ground ports b are electrically connected through the connecting line 2, and the ground port b is short-circuited with any ground port b through the connecting line 2.

[0058] To sum up, the above is only a preferred embodiment of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A power product insulation test tool, characterized by, It comprises: a PCB board (1); the PCB board (1) is provided with two input ports b corresponding to the input ports a of the power supply products to be tested, a plurality of output ports b corresponding to the output ports a of the power supply products to be tested, and a plurality of ground ports b corresponding to the ground ports a of the power supply products to be tested; each ground port b corresponds to more than one output port b, and each ground port b short-circuits more than one output port b corresponding thereto; the PCB board (1) is further provided with an input connector (11); the input connector (11) is electrically connected with the input port b, the output port b and the ground port b; the input port a in the power supply product to be tested is connected to the input port b on the PCB board (1) through the input connector (11), the output port a is connected to the output port b on the PCB board through the input connector (11), and the ground port a is connected to the ground port b on the PCB board through the input connector (11).

2. The power product insulation test fixture of claim 1, wherein, The input connector (11) contains a plurality of pins a; a plurality of pins a correspond to the pins b on the interface of the power supply product to be tested for insulation test; a plurality of pins a correspond to the input port b, the output port b and the ground port b of the input connector (11) and are electrically connected.

3. The power product insulation test fixture of claim 1, wherein, When the ground port b corresponds to a plurality of output ports b, each ground port b short-circuits any output port b corresponding thereto; a plurality of output ports b corresponding to the same ground port b are electrically connected.

4. The insulation testing tool for power supply products as claimed in claim 1 or 3, wherein, It further comprises: an output integrated device (3); the output integrated device (3) comprises: one or more connector rows (31) and a plurality of conductive contacts (32); each connector row (31) is processed with a plurality of mounting grooves; the conductive contacts (32) are installed in the mounting grooves; one conductive contact (32) is electrically connected with two input ports b; among the remaining conductive contacts (32), each conductive contact (32) is electrically connected with one ground port b.

5. The power product insulation test fixture of claim 4, wherein the power product insulation test fixture further comprises a plurality of power product insulation test fixtures. The conductive contacts (32) are arranged in the mounting grooves.

6. The power product insulation test fixture of claim 4, wherein, When two or more connector rows (31) are used, the two connector rows (31) are arranged in a stacked manner along the height direction and are fixed.

7. The power product insulation test fixture of claim 6, wherein the power product insulation test fixture further comprises a plurality of power product insulation test fixtures. When two or more connector rows (31) are used, the conductive contacts (32) on the upper and lower connector rows (31) are arranged staggered.

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