Waterproof testing device of connector

Abstract

The utility model discloses a waterproof testing device of a connector, which comprises an accommodating body and a withstand voltage tester, the withstand voltage tester is arranged on the outer side of the accommodating body, a male head and a female head of the connector are arranged in conductive liquid in the accommodating body after being oppositely inserted, and a lead of the male head and a lead of the female head are connected with a high-voltage end of the withstand voltage tester. And an outgoing line of the common end of the withstand voltage tester is arranged in the conductive liquid. The waterproof performance of the connector can be rapidly and accurately detected, and the waterproof test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector, specifically relates to a waterproof testing device of connector. BACKGROUND

[0002] The connector is the device that connects two active equipment to transmit current or signal, and it can build a communication bridge between the blocked or isolated circuit, so that the current can flow normally, and then the circuit can realize the predetermined function. The connector is widely used in communication and data transmission, new energy automobile and photovoltaic solar energy field.

[0003] The connector needs to be tested for wet leakage in the production process to detect whether the waterproofness of the connector meets the requirements. The conventional waterproof test method of the connector is to place the connector in water with a depth of 1-1.1 meters, and then visually inspect after soaking for 30 minutes to confirm whether water enters the connector terminal. However, in the actual test process, it is often difficult to quickly and accurately confirm whether water enters the connector terminal through visual inspection, which affects the waterproof test efficiency. UTILITY MODEL CONTENTS

[0004] In order to solve at least one problem mentioned in the above background art, the utility model provides a waterproof testing device of connector, which can quickly and accurately detect the waterproof performance of the connector and improve the waterproof test efficiency.

[0005] The specific technical scheme provided by the utility model is as follows:

[0006] A waterproof testing device of connector is provided, which includes a containing body and a voltage withstand tester. The voltage withstand tester is arranged outside the containing body. The male head and the female head of the connector are inserted into each other and then placed in the conductive liquid in the containing body. The lead wire of the male head and the lead wire of the female head are connected to the high-voltage end of the voltage withstand tester. The lead-out wire of the common end of the voltage withstand tester is placed in the conductive liquid.

[0007] As a preferred embodiment of the above scheme, the waterproof testing device of the connector further includes a connecting mechanism. The connecting mechanism includes a conductive terminal and a first lead wire. The first end of the conductive terminal is placed in the conductive liquid. The second end of the conductive terminal is located outside the conductive liquid and connected to one end of the first lead wire. The other end of the first lead wire is connected to the common end of the voltage withstand tester.

[0008] As a preferred embodiment of the above scheme, the connecting mechanism further includes a bracket. The bracket is connected to the containing body. The conductive terminal is arranged on the bracket.

[0009] As a preferred embodiment of the above scheme, the bracket includes a terminal channel. The terminal channel is partially located in the conductive liquid. The conductive terminal is arranged in the terminal channel. The first end and the second end of the conductive terminal both extend out of the terminal channel.

[0010] As a preferred solution of the above, the support further comprises a hanging part, the hanging part is hung on the side of the accommodating body, and the end of the hanging part away from the side of the accommodating body is connected with the terminal channel.

[0011] As a preferred solution of the above, the waterproof testing device of the connector further comprises a connecting part arranged outside the accommodating body, the lead of the male head and the lead of the female head are connected with one end of the second wire through the connecting part, and the other end of the second wire is connected with the high-voltage end of the pressure tester.

[0012] As a preferred solution of the above, the waterproof testing device of the connector further comprises a supporting part arranged outside the accommodating body, the lead of the male head, the lead of the female head and the connecting part are arranged on the supporting part.

[0013] As a preferred solution of the above, the waterproof testing device of the connector further comprises a supporting frame and a supporting part arranged outside the accommodating body, the pressure tester is arranged on the supporting frame, the lead of the male head and the lead of the female head are arranged on the supporting part, and the supporting part comprises a supporting rod fixed on the supporting frame.

[0014] As a preferred solution of the above, the male head and the female head after being plugged are arranged below the liquid surface of the conductive liquid by one meter.

[0015] As a preferred solution of the above, the waterproof testing device of the connector further comprises a sea wave simulator, the accommodating body is arranged on the sea wave simulator, and the sea wave simulator can shake the accommodating body and the conductive liquid to simulate the state of the conductive liquid on the sea.

[0016] As a preferred solution of the above, the conductive liquid is a salt water solution.

[0017] Through the above technical solution, the male head and the female head of the connector are arranged in the conductive liquid in the accommodating body after being plugged, then the lead of the male head and the lead of the female head are connected with the high-voltage end of the pressure tester, and the lead-out wire of the common end of the pressure tester is arranged in the conductive liquid, so that when the pressure tester is turned on, if the male head and the female head are waterlogged, the pressure tester forms a loop through the conductive liquid, the waterproof testing of the connector does not pass, otherwise the waterproof testing of the connector passes, the waterproof performance of the connector can be quickly and accurately detected by the pressure tester, and the waterproof testing efficiency of the connector is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 is a structural schematic diagram of the utility model;

[0020] Figure 2 is Figure 1 is a front view structural schematic diagram;

[0021] Figure 3 is Figure 1 is a side view structural schematic diagram;

[0022] Figure 4 is Figure 1 is a top view structural schematic diagram. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", "up", "down", "inner", "outer", "bottom", and the like used in the specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0025] As described in the background, the connector needs to be subjected to a wet leakage test in the production process to detect whether the waterproofness of the connector meets the requirements. The existing conventional connector waterproof test method is to place the connector in water with a depth of 1-1.1 meters, and after 30 minutes of continuous immersion, visual inspection is carried out to confirm whether water has entered the internal terminal of the connector. However, in the actual test process, it is often impossible to quickly and accurately confirm whether water has entered the internal terminal of the connector through visual inspection, affecting the test efficiency.

[0026] The waterproof test of the photovoltaic module is mainly to confirm whether the connector of the photovoltaic module reaches the highest waterproof level of IP 68 level, to ensure that the connection process of the photovoltaic module is safe and reliable, and can withstand rainwater or seawater immersion without affecting the safety performance of the product. The waterproof level test of IP X8 (continuous immersion test) in the test standard IEC 60529 is more stringent than IP X7 (short-time immersion test) level. IP X7 requires that the sample is placed below the water surface 1m, and visual inspection is performed after 30min. Compared with IP X7, the sample immersion time of IP X8 is increased from 30min to 1h. In addition, when the connector of the photovoltaic module is used outdoors or at sea, the operating environment of the connector is complex, and the waterproof test conditions of the connector need to be more stringent.

[0027] The insulation withstand voltage tester is also called insulation withstand voltage tester. The basic principle is to apply a voltage higher than the normal working voltage to the insulation of the device under test for a period of time, and to judge the insulation performance of the device by measuring the leakage current. The insulation withstand voltage tester is an integrated test device with certain flexibility, which can generate high voltage of 8kV and above. The leakage alarm can be realized during testing, and the grounding end is reliably grounded during testing.

[0028] If the insulation performance of the device is good, the applied high voltage will only produce a small leakage current. If the leakage current remains within the specified range, the device can operate safely under normal conditions; otherwise, the device may have insulation problems.

[0029] The utility model can compensate for the lack of existing standard test methods on the basis of meeting the IEC 60529 standard, easily and quickly realize IPX8 level waterproof performance test, and increase sea wave simulation and salt water addition, so that the waterproof test is more stringent, the execution monitoring is more reliable, and the waterproof performance of the connector is tested by the insulation withstand voltage tester. The waterproof performance of the connector can be quickly and accurately detected, the waterproof test efficiency of the connector is improved, the internal water penetration of the connector which cannot be identified by the naked eye is detected, and the waterproof performance of the photovoltaic module connector is more convenient, intuitive and accurate. Test, and further reduce the risk of performance failure of the photovoltaic module. The embodiment of the utility model (the arrow direction in the embodiment is Figure 2

[0030] Referring to Figures 1 to 4 , a waterproof test device for a connector, comprising a containing body 1 and an insulation withstand voltage tester 2, the insulation withstand voltage tester 2 is arranged outside the containing body 1, the male head 101 and the female head 102 of the connector 100 are inserted into the conductive liquid in the containing body 1, the lead 103 of the male head and the lead 104 of the female head are connected with the high voltage end of the insulation withstand voltage tester 2, and the lead-out wire of the common end (negative electrode) of the insulation withstand voltage tester 2 is placed in the conductive liquid. ​

[0031] In this embodiment, the connector 100 is a connector of a photovoltaic module, the connector 100 comprises a male head 101 and a lead wire 103 of the male head and a female head 102 and a lead wire 104 of the female head, the male head 101 and the female head 102 are opposite plug-in ends of the connector 100, the conductive liquid in the containing body 1 is a salt water solution, specifically a 5% concentration sodium chloride solution, which is convenient for simulating the waterproof state of the connector of the photovoltaic module in seawater, the containing body 1 is a water tank, preferably transparent glass material or acrylic material, which is convenient for observing the state of the connector in the water tank, the thickness of the side of the water tank can be customized according to the pressure, preferably 1 cm, the water tank is not easy to leak and has corrosion resistance, a 1-meter liquid level scale line 11 is arranged on the water tank, and the liquid level of the conductive liquid in the water tank is higher than the liquid level scale line, so that the male head 101 and the female head 102 after plugging are immersed below one meter of the liquid level of the conductive liquid.

[0032] Referring to Figures 1 to 4, the waterproof testing device of the connector further comprises a connecting mechanism 2, the connecting mechanism 3 comprises a conductive terminal 31 and a first wire 32, a first end of the conductive terminal 31 is placed in the conductive liquid, a second end of the conductive terminal 31 is located outside the conductive liquid and connected with one end of the first wire 32, the other end of the first wire 32 is connected with the common end of the withstand voltage tester 2. In the embodiment, the conductive terminal 31 is a metal terminal, and the conductive terminal 31 is used to conduct the conductive liquid and the withstand voltage tester 2 when the connector 100 leaks electricity, so as to facilitate the withstand voltage tester 2 to display the insulation test result. The connecting mechanism 3 further comprises a bracket 33, the bracket 33 is detachably connected to the containing body 1, the conductive terminal 31 is arranged on the bracket 33, one end of the conductive terminal 31 extends out of the bracket 33 and is arranged in the conductive liquid, the other end of the conductive terminal 31 extends out of the conductive liquid and is connected with the first wire 32. The bracket 33 is made of insulating material, preferably transparent glass material or acrylic material, so that the state of the conductive terminal 31 on the bracket 33 can be observed conveniently, the bracket 33 comprises a terminal channel 331 and a hanging part 332, part of the terminal channel 331 extends into the conductive liquid, the conductive terminal 31 is arranged in the terminal channel 331, the first end and the second end of the conductive terminal 31 both extend out of the terminal channel 331, the hanging part 332 is hung on the side of the containing body 1, and one end of the hanging part 332 away from the side of the containing body is connected with the terminal channel 331. In the embodiment, the hanging part 332 is in L shape, the hanging part 332 is hung on the top of the side of the sink, the terminal channel 331 is in strip shape, the terminal channel 331 is vertically arranged, the lower part of the terminal channel 331 extends into the saltwater solution and the upper part of the terminal channel 331 extends out of the saltwater solution, the conductive terminal 31 is also in strip shape, and the conductive terminal 31 can be arranged in one piece with the terminal channel 331, so that the conductive terminal 31 can be contacted or disconnected with the saltwater solution by taking and placing the bracket 33 on the sink, the operation is convenient, the lower end of the conductive terminal 31 extends out of the terminal channel 331 and is immersed in the saltwater solution, so as to ensure that the conductive terminal 31 is in full contact with the saltwater solution,

[0033] Referring to Figures 1 to 4The waterproof test device of the connector further comprises a connecting piece 5 arranged outside the accommodating body 1, one end of the male lead 103 (non-counterplug end of the connector 100) and one end of the female lead 104 (non-counterplug end of the connector 100) and one end of the second lead 4 extending out of the conductive liquid are connected through the connecting piece 5, the other end of the second lead 4 is connected to the high-voltage end of the withstand voltage tester 2, and the connecting piece 5 is arranged above the accommodating body 1. In this embodiment, the connecting piece 5 is preferably an insulating shell, and the male lead 103, the female lead 104 and the second lead 4 are connected in the insulating shell. The waterproof test device of the connector further comprises a support piece arranged outside the accommodating body, the upper end of the male lead 103, the upper end of the female lead 104 and the connecting piece 5 are arranged on the support piece 6, the support piece 6 is arranged above the accommodating body 1 and is used for supporting the male lead 103, the female lead 104 and the connecting piece 5, and specifically, the male lead 103, the female lead 104 and the connecting piece 5 are hung on the support piece 6. The waterproof test device of the connector further comprises a support frame arranged outside the accommodating body, and the withstand voltage tester 2 is arranged on the support frame 7. The support piece 6 comprises support rods which are fixed on the support frame 7. In this embodiment, the support rods are two, and are arranged horizontally above the water tank. The support rods are preferably insulating materials made of non-metallic materials, and can support the weight of the male lead 103, the female lead 104 and the connecting piece 5 without obvious visible deformation. The support frame 7 is used for supporting and raising the withstand voltage tester 2, facilitating the waterproof test of the connector 100 by the withstand voltage tester 2. The support frame 7 is preferably made of aluminum alloy or other non-metallic materials, facilitating the insulation connection between the withstand voltage tester 2 and the support rods. The support frame 7 comprises a placing table 71 and support legs 72, and the withstand voltage tester 2 is placed on the placing table 71, and the support rods are fixed on the side wall of the placing table 71.

[0034] The waterproof test device of the connector further comprises a sea wave simulator 8, and the accommodating body 1 is arranged on the sea wave simulator 8. The sea wave simulator 8 can shake the accommodating body 1 and the conductive liquid to simulate the state of the conductive liquid on the sea. The sea wave simulator 8 is a six-axis control system. In this embodiment, the bottom of the water tank is fixed on the six-axis, and the six-axis can be freely moved through air or electricity to drive the conductive liquid to form irregular waves to simulate the sea situation. The water tank is shaken horizontally or in a special state to make the conductive liquid in the water tank shake. The bottom of the water tank is reliably connected to the sea wave simulator 8 and is not easy to fall off. The bearing capacity of the sea wave simulator 8 is customized and matched according to the water tank and its volume, and can bear the weight of the water tank and the fully loaded conductive liquid. The sea wave simulator 8 has a timing start-stop function. The sea wave simulator 8 is prior art, and its specific structure will not be described here.

[0035] In the waterproof test of the connector 100, first, the male head 101 and the female head 102 of the photovoltaic module connector 100 are connected and placed in the salt water solution in the water tank, and are immersed in the liquid surface depth of 1 meter and below, then the lead wire 103 of the male head, the lead wire 104 of the female head and one end of the second lead wire 4 are connected through the connecting piece 5, the other end of the second lead wire 4 is connected with the high voltage end of the voltage withstand tester 2, the conductive terminal 31 is placed in the salt water solution, one end of the first lead wire 32 is connected with the metal sheet of the conductive terminal 31, and the other end is connected with the common end of the voltage withstand tester 2, the grounding end of the voltage withstand tester 2 is grounded through the third lead wire 9, finally, the water tank is fixed on the sea wave simulator 8, the sea wave simulator 8 is started, the liquid in the water tank is shaken, the sea condition is simulated, and the plug-in end of the connector 100 is immersed in the salt water solution for more than one hour, after the immersion is completed, the sea wave simulator 8 is turned off, after the liquid surface is static, the voltage withstand tester 2 is started to test the insulation and voltage resistance, whether the solution in the water tank is conducted to the inside of the connector 100, if the connection is conducted, the water enters the inside of the connector 100, the photovoltaic module connector IP X8 level waterproof test is failed, if the connection is not conducted, the voltage withstand tester 2 is turned off, the plug-in end of the connector 100 is further taken out for visual inspection, after the inside of the connector 100 is confirmed to have no water entering phenomenon through the appearance inspection, it is confirmed that the test is passed, and the test is completed.

[0036] The voltage withstand tester 2, the containing body 1 and the sea wave simulator 8 can quickly and accurately detect the waterproof performance of the photovoltaic module connector 100 on the sea or in the open air, improve the waterproof test efficiency of the connector 100, and further reduce the risk of performance failure of the photovoltaic module.

[0037] Although the preferred embodiments in the embodiments of the utility model have been described, the person skilled in the art can make additional changes and modifications to these embodiments once the basic creative concept is known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the utility model.

[0038] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and the equivalent technology thereof, the utility model also intends to include these modifications and variations.

Claims

1. A waterproof test device for a connector, characterized by, The device comprises a containing body (1) and a withstand voltage tester (2) arranged outside the containing body (1), the male head (101) and the female head (102) of the connector (100) are inserted into the conductive liquid in the containing body (1), the lead wire (103) of the male head and the lead wire (104) of the female head are connected with the high-voltage end of the withstand voltage tester (2), and the lead-out wire of the common end of the withstand voltage tester (2) is arranged in the conductive liquid.

2. The waterproof test device for a connector according to claim 1, characterized by The device further comprises a connecting mechanism (3) comprising a conductive terminal (31) and a first lead wire (32), the first end of the conductive terminal (31) is arranged in the conductive liquid, the second end of the conductive terminal (31) is arranged outside the conductive liquid and connected with one end of the first lead wire (32), and the other end of the first lead wire (32) is connected with the common end of the withstand voltage tester (2).

3. The waterproof test device of the connector according to claim 2, characterized by, The connecting mechanism (3) further comprises a bracket (33) connected to the containing body (1), and the conductive terminal (31) is arranged on the bracket (33).

4. The waterproof test device of the connector according to claim 3, characterized by The bracket (33) comprises a terminal channel (331), the terminal channel (331) is partially arranged in the conductive liquid, the conductive terminal (31) is arranged in the terminal channel (331), and the first end and the second end of the conductive terminal (31) both extend out of the terminal channel (331).

5. The waterproof test device of the connector according to claim 4, characterized by The bracket (33) further comprises a hanging part (332) arranged on the side of the containing body (1), and the hanging part (332) is connected with the terminal channel (331) away from one end of the side of the containing body.

6. The waterproof test device of the connector according to claim 1, characterized by The device further comprises a connecting piece (5) arranged outside the containing body (1), the lead wire (103) of the male head and the lead wire (104) of the female head are connected with one end of a second lead wire (4) through the connecting piece (5), and the other end of the second lead wire (4) is connected with the high-voltage end of the withstand voltage tester (2).

7. The waterproof test device of the connector according to claim 6, characterized by The device further comprises a support (6) arranged outside the containing body (1), and the lead wire (103) of the male head, the lead wire (104) of the female head and the connecting piece (5) are arranged on the support (6).

8. The waterproof test device of the connector according to claim 1, characterized by, The device further comprises a support frame (7) and a support (6) arranged outside the containing body (1), the withstand voltage tester (2) is arranged on the support frame (7), the lead wire (103) of the male head and the lead wire (104) of the female head are arranged on the support (6), and the support (6) comprises a support rod fixed on the support frame (7).

9. The waterproof test device of the connector according to claim 1, characterized by, The inserted male head (101) and the female head (102) are arranged below the liquid surface of the conductive liquid by one meter.

10. The waterproof test device of the connector according to any one of claims 1 to 9, characterized by, The device further comprises a sea wave simulator (8), and the containing body (1) is arranged on the sea wave simulator (8), so that the containing body (1) and the conductive liquid can be shaken to simulate the state of the conductive liquid on the sea.

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