A testing device with both insulation withstand voltage and NTC vibration functions

Abstract

The present invention relates to the field of testing technologies, and particularly to a testing device with both insulation withstand voltage and NTC vibration functions. The device includes a thermometer, an insulation withstand voltage tester, and a vibration test bench, and the product to be tested is placed on the vibration test bench; the thermometer includes a pneumatic telescopic component and a thermometer display, the pneumatic telescopic component includes a first connecting plate, a second connecting plate, a driving module, and a bottom plate, the first connecting plate and the second connecting plate are both arranged on the bottom plate, and the first connecting plate is arranged at the output end of the driving module; a plurality of first thimbles are arranged on the first connecting plate, and a plurality of second thimbles are arranged at the corresponding positions of the second connecting plate, and the driving module drives the first connecting plate to move towards the second connecting plate so that the first thimbles are in contact connection with the second thimbles; the first thimbles are electrically connected to the thermometer display, the second thimbles are electrically connected to the insulation withstand voltage tester, and the insulation withstand voltage tester is plugged into the product to be tested. This avoids the risk of damage to the product pins caused by secondary plugging and unplugging.

Description

Technical Field

[0001] The present invention relates to the technical field of testing, and particularly relates to a testing device with both insulation withstand voltage and NTC vibration functions. Background Art

[0002] For the circuit board on the battery, during long-term operation, the circuit board not only has to withstand the action of the rated working voltage, but also has to withstand the action of overvoltage (the overvoltage value may be several times higher than the rated working voltage value) that occurs for a short time during the operation process. Under the action of these voltages, the internal structure of the electrical insulation material will change. When the overvoltage intensity reaches a certain value, the insulation of the material will break down, the electrical appliance will not operate normally, and the operator may get an electric shock, endangering personal safety. Therefore, after the power supply module is manufactured, it must be subjected to insulation withstand voltage testing through an insulation withstand voltage test bench to ensure the safety of use.

[0003] For the circuit board on the battery, NTC vibration testing is also required. NTC (Negative Temperature Coefficient) vibration testing refers to the phenomenon and material of a thermistor with a negative temperature coefficient, where the resistance decreases exponentially with the increase in temperature.

[0004] Currently, insulation withstand voltage testing and NTC vibration testing are carried out separately. Separate testing will cause secondary plugging and unplugging of the test plugs, thereby increasing the risk of deformation and damage to the circuit board pins during the secondary plugging and unplugging process. In addition, the time for secondary plugging and unplugging during the test and the secondary placement of the circuit board will both cause waste of time. Summary of the Invention

[0005] The purpose of the present invention is to provide an insulation withstand voltage and vibration testing device, in which the plug only needs to be plugged and unplugged once to simultaneously perform insulation withstand voltage testing and NTC vibration testing.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A testing device with both insulation withstand voltage and NTC vibration functions includes a temperature measuring instrument, an insulation withstand voltage tester, and a vibration test bench. The vibration test bench is used to place the product to be tested;

[0008] The temperature measuring instrument includes a pneumatic telescopic component and a temperature measuring instrument display. The pneumatic telescopic component includes a first connecting plate, a second connecting plate, a driving module, and a bottom plate. The first connecting plate and the second connecting plate are both arranged on the bottom plate. The first connecting plate is arranged at the output end of the driving module, and the driving module drives the first connecting plate to reciprocate;

[0009] A plurality of first ejector pins are provided on the first connecting plate, and a plurality of second ejector pins are provided at corresponding positions on the second connecting plate. The driving module drives the first connecting plate to move towards the second connecting plate so that the first ejector pins are in contact connection with the second ejector pins, or drives the first connecting plate to move away from the second connecting plate so that the first ejector pins are separated from the second ejector pins;

[0010] The first ejector pins are electrically connected to the thermometer display, the second ejector pins are electrically connected to the insulation withstand voltage tester, and the male plug on the insulation withstand voltage tester is inserted into the female plug of the product to be tested.

[0011] Preferably, the thermometer further includes a solenoid valve and a switch control module. The switch control module is connected to the solenoid valve, and the solenoid valve is connected to the driving module.

[0012] Preferably, the thermometer further includes a power supply module. The power supply module is electrically connected to the switch control module.

[0013] Preferably, a first spring is provided between the first ejector pin and the first connecting plate, and a second spring is provided between the second ejector pin and the second connecting plate.

[0014] Preferably, the thermometer further includes a timer. The timer is respectively connected to the solenoid valve and the switch control module.

[0015] Preferably, the adjacent first ejector pins are arranged at the same interval, and the adjacent second ejector pins are arranged at the same interval.

[0016] Preferably, the driving module is a telescopic cylinder or a hydraulic cylinder.

[0017] Preferably, the first connecting plate and the second connecting plate are made of acrylic material.

[0018] Preferably, the first ejector pins and the second ejector pins are made of copper.

[0019] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0020] The driving module drives the first connecting plate to move on the bottom plate in the direction approaching the second connecting plate. The first ejector pin and the second ejector pin at corresponding positions are in contact connection, the circuit in the thermometer is conducted, the thermometer is turned on to the test mode. The first ejector pin is electrically connected to the thermometer display, and the second ejector pin is electrically connected to the insulation withstand voltage tester. The thermometer can perform NTC vibration tests on the product to be tested. After the NTC vibration test is completed, the driving module drives the first connecting plate to move in the direction away from the second connecting plate, the first ejector pin and the second ejector pin are separated, the circuit in the thermometer is disconnected, and the insulation withstand voltage tester starts the test mode. When the insulation withstand voltage tester is working, high-voltage current is prevented from entering the thermometer through the circuit and damaging the thermometer.

[0021] The device of the present application controls the conduction of the internal circuit of the thermometer through the pneumatic telescopic component, so that the device can perform insulation withstand voltage test and NTC vibration test respectively in one plugging and unplugging operation. This avoids the risk of pin deformation and damage of the product connector caused by secondary plugging and unplugging, and also reduces the plugging and unplugging time and the product placement time, improving the test efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Structural schematic diagram of the test device with both insulation withstand voltage and NTC vibration functions provided by the embodiment of the present invention;

[0024] Figure 2 Structural schematic diagram of the pneumatic telescopic component provided by the embodiment of the present invention.

[0025] Illustration: Thermometer 1, insulation withstand voltage tester 2, vibration test bench 3, product to be tested 4;

[0026] Pneumatic telescopic component 11, thermometer display 12, switch control module 13, power supply module 14, timer 15, solenoid valve 16;

[0027] First connecting plate 111, second connecting plate 112, driving module 113, bottom plate 114;

[0028] First ejector pin 1111, second ejector pin 1121;

[0029] Male plug 21, female plug 41. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] To make the objectives, features, and advantages of the present invention more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component.

[0032] In addition, terms such as "long", "short", "inner", "outer", etc. indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or component referred to must have this specific orientation or be constructed and operated in this specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0033] The following further illustrates the technical solutions of the present invention with reference to the accompanying drawings and through specific embodiments.

[0034] Please refer to Figure 1-2 , a test device with both insulation voltage withstand and NTC vibration functions, including a device thermometer 1, an insulation voltage withstand tester 2, and a vibration test bench 3. The vibration test bench 3 is used to place the product 4 to be tested;

[0035] The thermometer 1 includes a pneumatic telescopic component 11 and a thermometer display 12. The pneumatic telescopic component 11 includes a first connecting plate 111, a second connecting plate 112, a driving module 113, and a bottom plate 114. Both the first connecting plate 111 and the second connecting plate 112 are disposed on the bottom plate 114. The first connecting plate 111 is disposed at the output end of the driving module 113, and the driving module 113 drives the first connecting plate 111 to reciprocate;

[0036] A plurality of first thimbles 1111 are disposed on the first connecting plate 111, and a plurality of second thimbles 1121 are disposed at corresponding positions on the second connecting plate 112. The cylinder drives the first connecting plate 111 to move towards the second connecting plate 112 so that the first thimbles 1111 are in contact connection with the second thimbles 1121, or drives the first connecting plate 111 to move away from the second connecting plate 112 so that the first thimbles 1111 are separated from the second thimbles 1121;

[0037] The first thimble 1111 is electrically connected to the thermometer display, the second thimble 1121 is electrically connected to the insulation withstanding voltage tester, and the male plug 21 on the insulation withstanding voltage tester 2 is plugged into the female plug 41 of the product to be tested 4.

[0038] Specifically, the product to be tested 4 is placed on the vibration test bench 3. The male plug 21 on the insulation withstanding voltage tester 2 is plugged into the female plug 41 of the product to be tested 4. The vibration test bench 3 starts the vibration mode, and the driving module 113 starts to work. The driving module 113 drives the first connecting plate 111 to move on the bottom plate 114 in the direction close to the second connecting plate 112, so that the first thimble 1111 and the second thimble 1121 at the corresponding positions are in contact connection. The circuit in the thermometer 1 is conducted, and the thermometer 1 turns on the test mode. The first thimble 1111 is electrically connected to the thermometer display, and the second thimble 1121 is electrically connected to the insulation withstanding voltage tester. The thermometer 1 can perform NTC vibration test on the product to be tested 4.

[0039] After the NTC vibration test is completed, the vibration test bench 3 stops vibrating. The driving module 113 drives the first connecting plate 111 to move in the direction away from the second connecting plate 112. The first thimble 1111 and the second thimble 1121 are separated, and the circuit in the thermometer 1 is disconnected. The insulation withstanding voltage tester 2 starts the test mode, avoiding high-voltage current from entering the thermometer 1 through the circuit during the operation of the insulation withstanding voltage tester 2 and causing damage to the thermometer 1.

[0040] In this embodiment, the pneumatic telescopic assembly 11 controls the conduction of the internal circuit of the thermometer 1, so that the device can respectively perform insulation withstanding voltage test and NTC vibration test in one plug-and-unplug operation. It avoids the risk of pin deformation and damage of the product connector caused by secondary plugging and unplugging, and also reduces the plugging and unplugging time and the product placement time, improving the test efficiency of the product.

[0041] In an optional embodiment, the thermometer 1 further includes a solenoid valve 16 and a switch control module 13. The switch control module 13 is connected to the solenoid valve 16. The switch control module 13 controls the opening or closing of the solenoid valve 16, and the solenoid valve 16 is connected to the driving module 113.

[0042] In this embodiment, the driving module 113 is a telescopic cylinder or a hydraulic cylinder, and the solenoid valve 16 controls the telescopic movement of the telescopic cylinder or the hydraulic cylinder. When the solenoid valve 16 is opened, the telescopic cylinder pushes the first connecting plate 111 until the first thimble 1111 contacts the second thimble 1121. When the solenoid valve 16 is closed, the telescopic cylinder retracts to the initial position, and the first thimble 1111 is separated from the second thimble 1121.

[0043] In an alternative embodiment, the thermometer 1 further includes a power supply module 14, which is electrically connected to the switch control module 13, and the power supply module 14 is used to supply power to the switch control module 13.

[0044] The first ejector pin 1111 is in direct collision contact with the second ejector pin 1121. The device conducts insulation withstand voltage tests and vibration tests on multiple products. Multiple collisions are likely to cause damage to the first ejector pin 1111 and the second ejector pin 1121, resulting in the malfunction of the thermometer 1. In an alternative embodiment, a first spring is provided between the first ejector pin 1111 and the first connecting plate 111, and a second spring is provided between the second ejector pin 1121 and the second connecting plate 112. After the first ejector pin 1111 and the second ejector pin 1121 collide, the first spring and the second spring play a buffering role, reducing the damage to the first ejector pin 1111 and the second ejector pin 1121.

[0045] In an alternative embodiment, the thermometer 1 further includes a timer 15, which is respectively connected to the solenoid valve 16 and the switch control module 13. During the vibration test, the starting time of the telescopic cylinder is controlled to be consistent with the vibration time of the vibration test bench 3, and the timer 15 is used to time the working time of the cylinder.

[0046] The product includes multiple thermistors. One thermistor requires two first ejector pins 1111 and two second ejector pins 1121. Multiple thermistors require multiple first ejector pins 1111 and multiple second ejector pins 1121, and multiple thermistors are tested synchronously. In an alternative embodiment, the adjacent first ejector pins 1111 are arranged at the same interval, and the adjacent second ejector pins 1121 are arranged at the same interval.

[0047] In this embodiment, the first connecting plate 111 and the second connecting plate 112 are made of acrylic material, which has good toughness and is not easily damaged. The first ejector pin 1111 and the second ejector pin 1121 are made of conductive metals such as copper or silver. Preferably, the first ejector pin 1111 and the second ejector pin 1121 are copper telescopic ejector pins, which have high electrical conductivity, high thermal conductivity, and corrosion resistance.

[0048] As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A test device with both insulation voltage withstand and NTC vibration functions, characterized in that, it includes a thermometer (1), an insulation voltage withstand tester (2) and a vibration test bench (3), and the vibration test bench (3) is used to place the product to be tested (4); The thermometer (1) includes a pneumatic telescopic component (11) and a thermometer display (12). The pneumatic telescopic component (11) includes a first connecting plate (111), a second connecting plate (112), a driving module (113) and a bottom plate (114). The first connecting plate (111) and the second connecting plate (112) are both arranged on the bottom plate (114). The first connecting plate (111) is arranged at the output end of the driving module (113), and the driving module (113) drives the first connecting plate (111) to reciprocate; A plurality of first thimbles (1111) are arranged on the first connecting plate (111), and a plurality of second thimbles (1121) are arranged at corresponding positions on the second connecting plate (112). The driving module (113) drives the first connecting plate (111) to move towards the second connecting plate (112) so that the first thimble (1111) is in contact connection with the second thimble (1121), or drives the first connecting plate (111) to move away from the second connecting plate (112) so that the first thimble (1111) is separated from the second thimble (1121); The first thimble (1111) is electrically connected to the thermometer display, the second thimble (1121) is electrically connected to the insulation voltage withstand tester, and the male plug (21) on the insulation voltage withstand tester (2) is inserted into the female plug (41) of the product to be tested (4); The thermometer (1) further includes a solenoid valve (16) and a switch control module (13). The switch control module (13) is connected to the solenoid valve (16), and the solenoid valve (16) is connected to the driving module (113); The thermometer (1) further includes a timer (15). The timer (15) is respectively connected to the solenoid valve (16) and the switch control module (13); During the vibration test, control the start time of the driving module (113) to be the same as the vibration time of the vibration test bench (3). The timer (15) is used to time the working time of the driving module (113); A first spring is arranged between the first thimble (1111) and the first connecting plate (111), and a second spring is arranged between the second thimble (1121) and the second connecting plate (112).

2. The test device with both insulation voltage withstand and NTC vibration functions according to claim 1, characterized in that, the thermometer (1) further includes a power supply module (14), and the power supply module (14) is electrically connected to the switch control module (13).

3. The test device with both insulation voltage withstand and NTC vibration functions according to claim 1, characterized in that, The adjacent first thimbles (1111) are arranged at the same interval, and the adjacent second thimbles (1121) are arranged at the same interval.

4. The test device with both insulation withstand voltage and NTC vibration functions according to claim 1, characterized in that, the driving module (113) is a telescopic air cylinder or a hydraulic cylinder.

5. The test device with both insulation withstand voltage and NTC vibration functions according to claim 1, characterized in that, the first connecting plate (111) and the second connecting plate (112) are made of acrylic material.

6. The test device with both insulation withstand voltage and NTC vibration functions according to claim 1, characterized in that, the first thimble (1111) and the second thimble (1121) are made of copper.

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