Electrical safety comprehensive tester

Abstract

The utility model discloses an electrical safety comprehensive tester, comprising an instrument main body, a front panel of the instrument main body is provided with a withstand voltage test terminal, the withstand voltage test terminal is composed of a high-voltage output port and a high-voltage detection port, and the positions of the high-voltage output port and the high-voltage detection port are provided with plug locking devices; the plug locking device comprises a limiting socket and a pre-tightening socket. According to the invention, the plug locking device is arranged at the position of the withstand voltage test terminal, when a test line is connected, an operator needs to insert a plug into the plug locking device, and the pre-tightening socket is driven to rotate in the limiting socket in a screwing manner, so that the triangular hollow groove and the triangular sinking groove are butted in a staggered manner; according to the structural design, the connecting plug is effectively prevented from falling off due to accidental touch, the safety of the testing process is ensured, and the device has the advantages of being easy and convenient to operate and easy to implement.

Description

TECHNICAL FIELD

[0001] The utility model relates to test instrument technical field especially relates to a kind of electrical safety comprehensive tester. BACKGROUND

[0002] Electrical safety comprehensive tester is the test instrument of photovoltaic module safety parameter, and can also be used for household appliance, electronic instrument, electronic equipment, electronic component, wire and cable etc. Electrical safety comprehensive tester's part test project instrument has 12KVDC high voltage output, to meet different test needs, so the safety protection measure of test instrument is the focus of attention. When carrying out high voltage test, if test line is not completely connected or falls, it can cause the high voltage on the measured piece, there is great security risk. The electrical safety comprehensive tester on the market generally lacks effective protection measures for incomplete or falling test line connection. SUMMARY

[0003] To solve the above technical problems, the utility model provides. In order to have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This part is not a general review, nor is it intended to determine the key / important elements or delineate the scope of protection of these embodiments. Its only purpose is to present some concepts in simple form as a prelude to the detailed description that follows.

[0004] The utility model adopts the following technical solutions:

[0005] Provide a kind of electrical safety comprehensive tester, comprising: instrument main body, the front panel of the instrument main body is provided with voltage-withstanding test terminal, the voltage-withstanding test terminal is composed of high voltage output port and high voltage detection port, and the high voltage output port and the high voltage detection port are located at position and are provided with plug locking device;The plug locking device includes: limit socket and pre-tightening socket, the limit socket is arranged on the front panel of the instrument main body, the limit socket is provided with guide cavity in, the pre-tightening socket is arranged in the guide cavity, the front end surface of the limit socket is provided with triangular hollow slot, the pre-tightening socket is provided with triangular sunken groove, and the groove bottom of the triangular sunken groove is provided with jack.

[0006] Further, the limit socket includes: socket main body, rotary supporting mechanism and mounting bottom piece, the mounting bottom piece is arranged on the socket main body and is connected with the front panel of the instrument main body, and the rotary supporting mechanism is arranged on the cavity wall of the guide cavity and is connected with the pre-tightening socket.

[0007] Further, the guide cavity is a cylindrical cavity, the guide cavity is communicated with the triangular hollow groove, the pre-tightening socket is a disc-shaped structure, a gasket is arranged on the front end surface of the pre-tightening socket, and the gasket is in contact with the front cavity wall of the guide cavity.

[0008] Further, the electrical safety comprehensive tester further comprises a plug, and the plug comprises a plug body and a triangular positioning head arranged on the plug body and matched with the triangular sunken groove.

[0009] Further, the electrical safety comprehensive tester further comprises a power switch, an indicator lamp, a USB interface, a label and a liquid crystal display, and the power switch, the indicator lamp, the USB interface, the label and the liquid crystal display are arranged on the front panel of the instrument body.

[0010] Further, the electrical safety comprehensive tester further comprises a function soft key, a function shortcut key, a cursor direction key, a digital keyboard and a start reset key, and the function soft key, the function shortcut key, the cursor direction key, the digital keyboard and the start reset key are arranged on the front panel of the instrument body.

[0011] The beneficial effects brought by the utility model: the plug locking device is arranged at the position of the pressure test terminal, when the test line is connected, the operator needs to insert the plug into the plug locking device, and the pre-tightening socket is rotated in the limiting socket through the screwing mode, so that the triangular hollow groove is misaligned with the triangular sunken groove, thereby realizing reliable limiting and fixing of the plug, the structure design of the utility model effectively prevents the plug from falling off due to accidental touch, ensures the safety of the test process, and has the advantages of simple and easy operation. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0013] Figure 1 It is a front structure schematic view of the electrical safety comprehensive tester of the utility model,

[0014] Figure 2 It is a back structure schematic view of the electrical safety comprehensive tester of the utility model,

[0015] Figure 3 is the structure schematic view of the plug locking device of the utility model;

[0016] Figure 4 is the structure schematic view of the plug locking device of the utility model when inserting the plug;

[0017] Figure 5 is the schematic view when the triangular hollow groove and the triangular sunken groove in the plug locking device of the utility model are misaligned and butt jointed;

[0018] Figure 6 is the sectional schematic view of the plug locking device of the utility model;

[0019] Figure 7 is the structure schematic view of the pre-tightening socket of the utility model;

[0020] Figure 8 is the structure schematic view of the limiting socket of the utility model. DETAILED DESCRIPTION

[0021] The embodiments of the utility model will be described in detail below with reference to the drawings. It should be clear that the described embodiments are only some of the embodiments of the utility model, not 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 the utility model protection.

[0022] As shown in Figures 1-8 In some illustrative embodiments, an electrical safety regulation comprehensive tester is provided, comprising: an instrument body 100, a plug locking device 200 and a plug 300.

[0023] The instrument body 100 integrates multiple test function modules, including power module, control module, display module, test module, etc., and realizes test functions including: DC voltage resistance test, insulation resistance test, grounding resistance test, pin detection; wherein, the DC voltage resistance test outputs 12KVDC test voltage, which is used for detecting the voltage resistance performance of electrical products such as photovoltaic modules and household appliances; the insulation resistance test is used for measuring the resistance value of the insulation material of the measured piece, and the output voltage range is 100V-5000V. The plug locking device 200 is located at the position of the voltage resistance test terminal of the instrument body 100, which is used to prevent the plug 300 from falling off due to external force during the test process, so as to ensure the safety during the test process.

[0024] The front panel 110 of the instrument main body is provided with a withstand voltage test terminal composed of a high-voltage output port and a high-voltage detection port, and the high-voltage output port and the high-voltage detection port are provided with a plug locking device 200 at the positions thereof, that is, the plug locking device 200 covers the high-voltage output port and the high-voltage detection port and leaves a corresponding channel for the plug 300 to be inserted. Each plug locking device 200 corresponds to a corresponding withstand voltage test terminal one by one to ensure reliable connection between the test line and the withstand voltage test terminal. Through the anti-falling mechanism of the plug locking device 200, the plug 300 is prevented from being accidentally pulled out during the test, thereby ensuring the safety of the test.

[0025] The plug locking device 200 comprises a limiting socket 210 and a pre-tightening socket 220.

[0026] The limiting socket 210 is arranged on the front panel 110 of the instrument main body. Specifically, the limiting socket 210 comprises a socket main body 212, a rotary supporting mechanism 213 and a mounting bottom sheet 214.

[0027] The mounting bottom sheet 214 is arranged at the inner side edge of the socket main body 212 and is an integral molding structure with the socket main body 212. The main function of the mounting bottom sheet 214 is to fix the limiting socket 210 on the front panel 110 of the instrument main body. The mounting bottom sheet 214 can be clamped into the reserved clamping groove on the front panel 110 of the instrument main body to achieve quick and firm fixation. Alternatively, a high-performance adhesive can be used to bond the mounting bottom sheet 214 and the front panel 110 of the instrument main body into an integral whole to provide stable support.

[0028] A guide cavity 211 is formed in the limiting socket 210 to provide a rotating space for the pre-tightening socket 220. Specifically, the guide cavity 211 is formed in the socket main body 212, and the pre-tightening socket 220 is arranged in the guide cavity 211. The rotary supporting mechanism 213 is arranged on the cavity wall of the guide cavity 211 and connected with the pre-tightening socket 220, so that the pre-tightening socket 220 can rotate in the limiting socket 210. The rotary supporting mechanism 213 can be a bearing or other existing mechanism that can support rotation.

[0029] A triangular hollow groove 215 is formed in the front end face of the limiting socket 210, and a corresponding triangular sunken groove 221 is arranged on the pre-tightening socket 220. The bottom of the triangular sunken groove 221 is provided with a plug hole 222. The plug hole 222 is in communication with the corresponding high-voltage output port and high-voltage detection port at the positions of the high-voltage output port and high-voltage detection port, respectively, to ensure smooth electrical connection.

[0030] The guide cavity 211 is a cylindrical inner cavity, and the guide cavity 211 is in communication with the triangular hollow groove 215, and the pre-tightening socket 220 is a disc-shaped structure. The plug connector 300 includes a plug main body 310 and a triangular positioning head 320, and the triangular positioning head 320 is arranged on the plug main body 310 and is matched with the triangular sunken groove 221.

[0031] Before connecting the test line, it is necessary to ensure that the triangular hollow groove 215 is aligned with the triangular sunken groove 221. The steps of connecting the test line are as follows:

[0032] Firstly, the triangular positioning head 320 of the plug connector 300 is aligned with the triangular hollow groove 215, and the plug connector 300 is gently pushed so that the triangular positioning head 320 passes through the triangular hollow groove 215 and is embedded in the triangular sunken groove 221, and the two are in interference fit, which ensures close connection, and at the same time, the plug main body 310 passes through the triangular hollow groove 215, the triangular sunken groove 221 and the jack 222 in sequence, and finally is inserted into the high-voltage output port or the high-voltage detection port.

[0033] Then, the plug connector 300 is rotated to drive the pre-tightening socket 220 to rotate, so that the triangular hollow groove 215 and the triangular sunken groove 221 are mutually misaligned, and at this time, the limiting socket 210 plays a limiting role to prevent the plug connector 300 from being accidentally pulled out. Through this design, the plug connector 300 is firmly locked in position after completing the insertion and rotation operation, thereby ensuring the safety and stability of the test process.

[0034] The front end face of the pre-tightening socket 220 is provided with a gasket 223, and the gasket 223 is in contact with the front side cavity wall of the guide cavity 211. The gasket 223 increases the friction between the limiting socket 210 and the pre-tightening socket 220, so that when the plug connector 300 is rotated for fixation, unnecessary rotation of the pre-tightening socket 220 relative to the limiting socket 210 can be prevented, thereby improving the fixation effect and safety of the plug connector 300.

[0035] The thickness of the triangular positioning head 320 is less than the groove depth of the triangular sunken groove 221, so as to avoid affecting the rotation of the pre-tightening socket 220.

[0036] The electrical safety comprehensive tester of the embodiment further comprises a power switch 1, an indicator light 2, a USB interface 3, a label 4, and a liquid crystal display 5. The power switch 1, the indicator light 2, the USB interface 3, the label 4, and the liquid crystal display 5 are arranged on the front panel 110 of the instrument body. The power switch 1 is used to control the power on and off of the electrical safety comprehensive tester. The indicator light 2 is used to display the working state of the tester, such as power on, testing in progress, testing completed, or fault occurred, etc. The USB interface 3 is used for data transmission with external devices (such as computers, printers or other data storage devices), which facilitates users to export test data or update the firmware of the tester. The label 4 is used to identify the model, manufacturer, serial number, safety warning, and other information of the tester. The liquid crystal display 5 is used to display test parameters, test results, operation menus, and fault diagnosis information, etc.

[0037] The electrical safety comprehensive tester of the embodiment further comprises a function soft key 6, a function shortcut key 7, a cursor direction key 8, a numeric keypad 9, and a start reset key 10. The function soft key 6, the function shortcut key 7, the cursor direction key 8, the numeric keypad 9, and the start reset key 10 are arranged on the front panel 110 of the instrument body. The function soft key 6 is used to select and set various parameters. Each soft key has a corresponding function definition on the left side. The function definition of the soft key changes according to the display page. The function shortcut key 7 includes a TEST key, a SETUP key, and a SYSTEM key. Pressing the TEST key makes the instrument enter the test preparation state. Pressing the SETUP key makes the instrument enter the parameter setting interface. Pressing the SYSTEM key makes the instrument enter the system setting interface. The cursor direction key 8 is used to move between fields on the liquid crystal display page for selection or adjustment. The numeric keypad 9 is used to input data through numeric keys, such as test parameters, test numbers, or other numerical information. The start reset key 10 is used to start or reset the tester, start a new test cycle, or terminate the current test.

[0038] The electrical safety comprehensive tester of the embodiment further comprises a ground resistance test terminal 11, which is arranged on the front panel 110 of the instrument body. The ground resistance test terminal 11 includes a current output positive terminal, a voltage sampling positive terminal, a voltage sampling negative terminal, and a current output negative terminal.

[0039] The electrical safety comprehensive tester of the embodiment further comprises an RS232 / 485 interface 12, a HANDLER interface 13, a power socket 14, a safety grounding terminal 15, and a fuse. The RS232 / 485 interface 12, the HANDLER interface 13, the power socket 14, and the safety grounding terminal 15 are arranged on the rear panel 120 of the instrument main body, and the fuse is arranged in the power socket 14. The RS232 / 485 interface 12 is used to realize communication between the tester and external equipment (such as a computer, a PLC, or other control systems). The HANDLER interface 13 is specially used to connect with an automated test system or a test fixture (such as a robot, a test fixture, etc.), so as to realize an automated test process. The power socket 14 is a power input interface of the tester, and is used to connect with an external power supply. The safety grounding terminal 15 is used to ground the tester, so as to prevent electric leakage and static electricity accumulation, and to ensure the safety of operators and equipment. The fuse is arranged in the power socket 14, and is used to protect the tester from power overload.

[0040] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, and all of these should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An electrical safety comprehensive tester, comprising: The utility model discloses an instrument main body, its characterized in that, the front panel of the instrument main body is provided with pressure resistance test terminal, the pressure resistance test terminal is composed of high pressure output port and high pressure detection port, and the high pressure output port and the high pressure detection port are all provided with plug locking device at the position, the plug locking device includes: limiting socket and pre-tightening socket, the limiting socket is arranged on the front panel of the instrument main body, the guiding cavity is formed in the limiting socket, the pre-tightening socket is arranged in the guiding cavity, the front end surface of the limiting socket is provided with triangular hollow slot, the pre-tightening socket is provided with triangular sunken groove, and the bottom of the triangular sunken groove is provided with insertion hole.

2. The electrical safety comprehensive tester according to claim 1, characterized in that, The limiting socket includes: socket main body, rotary supporting mechanism and mounting bottom sheet, the mounting bottom sheet is arranged on the socket main body and connected with the front panel of the instrument main body, and the rotary supporting mechanism is arranged on the cavity wall of the guiding cavity and connected with the pre-tightening socket.

3. The electrical safety comprehensive tester according to claim 2, characterized in that, The guiding cavity is cylindrical inner cavity, and the guiding cavity is communicated with the triangular hollow slot; the pre-tightening socket is disc-shaped structure, the front end surface of the pre-tightening socket is provided with gasket, and the gasket is in contact with the front cavity wall of the guiding cavity.

4. The electrical safety comprehensive tester according to claim 3, characterized in that, Further comprising: Plug connector; The plug connector includes: plug main body and triangular positioning head, the triangular positioning head is arranged on the plug main body and matched with the triangular sunken groove; The thickness of the triangular positioning head is less than the groove depth of the triangular sunken groove.

5. The electrical safety comprehensive tester according to claim 4, characterized in that, Further comprising: Power switch, indicator light, USB interface, label and liquid crystal display; the power switch, the indicator light, the USB interface, the label and the liquid crystal display are arranged on the front panel of the instrument main body.

6. The electrical safety comprehensive tester according to claim 5, characterized in that, Further comprising: Function soft key, function shortcut key, cursor direction key, digital keyboard and start reset key; The function soft key, the function shortcut key, the cursor direction key, the digital keyboard and the start reset key are arranged on the front panel of the instrument main body.

7. The electrical safety comprehensive tester according to claim 6, characterized in that, Further comprising: Ground resistance test terminal, and the ground resistance test terminal is arranged on the front panel of the instrument main body.

8. The electrical safety comprehensive tester according to claim 7, characterized in that, Further comprising: RS232 / 485 interface, HANDLER interface, power socket, safety grounding terminal and fuse; the RS232 / 485 interface, the HANDLER interface, the power socket and the safety grounding terminal are arranged on the rear panel of the instrument main body, and the fuse is arranged in the power socket.

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