Multipath insulation resistance tester

Abstract

The utility model discloses a multipath insulation resistance tester comprising an instrument cabinet, a back plate of the instrument cabinet is provided with a regulation and control device, and the regulation and control device is provided with a terminal board; the regulation and control device comprises a back plate support, a telescopic support and a thread tightening fixer. The test interface part of the multi-path insulation resistance tester is arranged on the back plate of the instrument cabinet, the regulation and control device is used for loading, the terminal plate can be pulled out and an operation port can be provided through the regulation and control device when the structure of the terminal plate is set, regulated, connected and maintained, the integration level of equipment is improved through structure optimization, and the cost is reduced. And on-site wiring and other operations are facilitated, so that the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to test instrument technical field especially, relates to a kind of multiway insulation resistance tester. BACKGROUND

[0002] Insulation resistance tester, it is mainly used to measure the insulation resistance value of electrical equipment, line, component, to ensure that electrical equipment has good insulation performance in the running process, prevent the occurrence of equipment failure, safety accident due to poor insulation.In addition, insulation resistance tester can also be used to evaluate the aging degree of insulating material, provide strong basis for equipment maintenance.

[0003] With the increasing complexity of electrical equipment, single insulation resistance tester cannot meet the testing needs, in order to improve testing efficiency, multiway insulation resistance tester emerges as the times require, which can measure insulation resistance of multiple test points at the same time.However, there are still some technical problems in the actual application of the existing multiway insulation resistance tester, for example, more interface points lead to complex wiring, adjustment is difficult, and the internal structure of the equipment is complex, once fault occurs, maintenance is difficult. SUMMARY

[0004] 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.

[0005] The utility model adopts the following technical solutions:

[0006] Provide a kind of multiway insulation resistance tester, it include: instrument cabinet, regulating and control device is arranged on the backboard of the instrument cabinet, terminal board is arranged on the regulating and control device;

[0007] The regulating and control device includes: backboard support, telescopic support and wiring harness fastener;Operating opening is opened on the backboard of the instrument cabinet, and the backboard inner side of the instrument cabinet is provided with the backboard support on the two sides of the operating opening, and the wiring harness fastener is arranged on the backboard support;The fixed end of the telescopic support is connected with the backboard support, the movable end of the telescopic support passes through the operating opening and is connected with the terminal board, and the wiring harness led from the terminal board is clamped on the wiring harness fastener.

[0008] Further, the terminal board includes: main body plate, two groups of high-voltage output ports and a plurality of board cards arranged side by side between the two groups of high-voltage output ports, the high-voltage output ports are arranged on the main body plate, and return end pins and indicator lights are arranged on the board cards.

[0009] Further, the number of the board cards is 16, each group of the high-voltage output ports comprises 8 ports, and each port corresponds to one board card; two groups of the return end pins are arranged on each board card, and each group of the return end pins comprises 8 pins.

[0010] Further, the wire harness fastener comprises a rectangular frame and a plurality of vertical plates arranged in the rectangular frame, a wire harness groove is formed in the side surface of the vertical plate, a wire harness pressing rod is arranged at the slot opening of the wire harness groove, and the wire harness pressing rod and the vertical plate are connected through bolts.

[0011] Further, the front of the instrument cabinet is sequentially provided with an upper cabinet door, a drawer for carrying a keyboard and a mouse, and a lower cabinet door from top to bottom, and the lower cabinet door and the terminal plate are both provided with ventilation grooves.

[0012] Further, the interior of the instrument cabinet is provided with a resistance testing instrument, and the front panel of the resistance testing instrument is provided with a power switch, a label, a liquid crystal display screen, a test result indicator light, a cursor control confirmation key, a measurement shortcut key, a setting shortcut key, a system shortcut key, a start / stop shortcut key, a USB interface and a TF card slot.

[0013] Further, the back panel of the resistance testing instrument is provided with a test interface, a high-voltage output interface, a communication interface, a power socket and a grounding column.

[0014] Further, the back plate of the instrument cabinet is provided with a sink groove around the operation port, a sealing gasket is arranged in the sink groove, and the terminal plate is provided with a pressing strip matched with the sink groove.

[0015] The beneficial effects brought by the utility model: the test interface part of the multi-channel insulation resistance tester is arranged on the back plate of the instrument cabinet, and is loaded by using the control device, the structure of the terminal plate is set, the terminal plate can be pulled out by the control device during control, wiring and maintenance, an operation port is provided, the equipment integration is improved by structure optimization, and the wiring and other operations on site are facilitated, so that the test efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] 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 below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0017] Figure 1is a front structure schematic view of a multi-channel insulation resistance tester of the utility model;

[0018] Figure 2 is a back structure schematic view of a multi-channel insulation resistance tester of the utility model;

[0019] Figure 3 is a structure schematic view of a multi-channel insulation resistance tester when terminal board is extracted of the utility model;

[0020] Figure 4 is a connection schematic view of regulating device, terminal board and instrument cabinet of the utility model;

[0021] Figure 5 is a structure schematic view of wire harness tightener of the utility model;

[0022] Figure 6 is a front structure schematic view of resistance testing instrument of the utility model;

[0023] Figure 7 is a back structure schematic view of resistance testing instrument of the utility model. DETAILED DESCRIPTION

[0024] 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 part 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 belong to the scope of protection of the utility model.

[0025] As Figure 1-7 Indicated, in some illustrative embodiments, a multi-channel insulation resistance tester is provided, comprising: instrument cabinet 100, regulating device 200, terminal board 300, resistance testing instrument 400.

[0026] The internal space of instrument cabinet 100 is divided into multiple areas, including the installation area of regulating device 200, the placement area of resistance testing instrument 400 and the cable management area. The back plate of instrument cabinet 100 is provided with regulating device 200, and regulating device 200 is provided with terminal board 300. Terminal board 300 realizes front and back movement through the push-pull mechanism of regulating device 200, which is convenient for user wiring, maintenance and other operations. Resistance testing instrument 400 is arranged in the interior of instrument cabinet 100 and is connected with terminal board 300 through cable, and has the functions of automatic testing, data storage, result output and the like.

[0027] Regulating device 200 comprises back plate support 210, telescopic support 220 and wire harness tightener 230.

[0028] An operation opening 110 is formed on the back plate of the instrument cabinet 100, and back plate supports 210 are arranged on the inner side of the back plate of the instrument cabinet 100 on both sides of the operation opening 110. The back plate supports 210 are used to support the entire control device 200 and ensure its stability. The telescopic supports 220 are telescopic connecting members, the fixed ends of which are connected to the inner side of the back plate supports 210, and the movable ends of which pass through the operation opening 110 and are connected to the terminal plate 300, so that the terminal plate 300 can move telescopically under the support and guidance of the control device 200. The wire harness fastener 230 is arranged at the end of the back plate support 210 and is used to fix and arrange the wire harness connecting between the terminal plate 300 and the resistance testing instrument 400, prevent the wire harness from loosening or being messy, and at the same time, reserve sufficient wire harness length between the terminal plate 300 and the resistance testing instrument 400, facilitating the extraction of the terminal plate 300.

[0029] The terminal plate 300 is tightly buckled on the operation opening 110 through the telescopic supports 220. When wiring, maintenance or other operations are needed, the operator can pull the terminal plate 300 to extract it along the direction of the telescopic supports 220, so as to open the operation opening 110. After the terminal plate 300 is extracted, the operator can directly contact the wiring terminal to perform wiring or maintenance operation. After the operation is completed, the terminal plate 300 is pushed back to the original position and buckled on the operation opening 110.

[0030] Through the design of the telescopic supports 220, the terminal plate 300 can be quickly extracted and pushed in, and the operation is simple, which improves the operation convenience. At the same time, since the terminal plate 300 can be easily extracted, the operation space is larger when wiring or maintenance is performed, which is convenient for the operator to check and maintain. The use of the wire harness fastener 230 ensures the fixation of the wire harness, reduces the risk of poor contact or short circuit caused by loosening of the wire harness, and at the same time, reserves sufficient wire harness length between the terminal plate 300 and the resistance testing instrument 400, facilitating the extraction of the terminal plate 300. The design of the control device 200 makes the internal space of the instrument cabinet 100 be effectively utilized, avoids the internal wire harness to be messy, and reduces the abrasion of the connection points caused by pulling the wire harness. The design of the control device 200 not only improves the operation efficiency and safety of the multi-channel insulation resistance tester, but also enhances the maintainability and durability of the equipment, which is suitable for insulation resistance testing requirements in various complex environments.

[0031] The terminal plate 300 comprises a main plate member 310, two groups of high-voltage output ports 320, and a plurality of plate cards 330 arranged in parallel between the two groups of high-voltage output ports 320.

[0032] The main plate 310 is used as the base plate of the terminal plate 300 to realize the connection between the terminal plate 300 and the control device 200, and also serves as the mounting platform of the board card 330 and the high-voltage output port 320. The high-voltage output port 320 is arranged on the main plate 310, and each group of high-voltage output ports 320 includes 8 ports, each port corresponding to one board card 330, and the number of board cards 330 is 16. The return end pin 331 and the indicator light 332 are arranged on the board card 330, and two groups of return end pins 331 are arranged on each board card 330, and each group of return end pins 331 includes 8 pins.

[0033] During the test, each high-voltage output port is connected to the high-voltage end of the tested component through a dedicated test line to provide a test voltage for the tested component, and the return end of the tested component is connected back to the return end pin on the corresponding board card 330 through the test line. The indicator light 332 is used to display the state of each test channel, such as test in progress, test completed or test abnormal, etc., to facilitate the operator to monitor the test process in real time. The 16 board cards 330 on the terminal plate 300 allow 16 test channels to be tested simultaneously. Through this design, the multi-channel insulation resistance tester can efficiently and safely complete multi-channel insulation resistance testing, which is suitable for batch electrical equipment detection, greatly improving production efficiency and product quality.

[0034] The wire harness led out from the terminal plate 500 is clamped on the wire harness retainer 230, that is, the wire harness led out from the high-voltage output port 320, the return end pin 331 and the indicator light 332 is first fixed by the wire harness retainer 230, and then connected to the resistance testing instrument 400.

[0035] The wire harness retainer 230 includes a rectangular frame 231 and a plurality of vertical plates 232. The vertical plate 232 is a vertical plate fixed inside the rectangular frame 231, and the number of vertical plates 232 is determined according to the number of wire harnesses to be fixed. The vertical plate 232 functions to guide the wire harness and keep the wire harness in order. The side surface of the vertical plate 232 is provided with a wire harness groove 233 for placing the wire harness, and the depth and width of the wire harness groove 233 should be designed according to the size of the wire harness. The wire harness groove 233 is provided with a wire harness pressing rod 234 at the slot opening, which is used to press the wire harness to prevent the wire harness from moving or falling off in the wire harness retainer 230, and the wire harness pressing rod 234 is connected with the vertical plate 232 by a bolt.

[0036] When installing the wire harness, the wire harness to be fixed is placed in the wire harness groove 233 to ensure that the wire harness is arranged in order along the groove without crossing or overlapping, and then the wire harness pressing rod 234 is placed at the slot opening of the groove to cover the wire harness, and the wire harness pressing rod 234 is fixed on the vertical plate 232 by using a bolt, and the pressure of the wire harness pressing rod 234 is adjusted by rotating the bolt until the wire harness is tightly pressed in the wire harness groove 233.

[0037] The wire harness tightener 230 can effectively maintain the neat arrangement of the wire harness, so that the wire harness is effectively managed in a limited space, not only saving the space in the instrument cabinet 100, but also reducing the damage caused by the pulling of the wire harness, and reserving enough length of the wire harness between the terminal board 300 and the resistance testing instrument 400, facilitating the extraction of the terminal board 300.

[0038] The front of the instrument cabinet 100 is sequentially provided with an upper cabinet door 120, a drawer 130 for carrying a keyboard and a mouse, and a lower cabinet door 140 from top to bottom. The lower cabinet door 140 and the terminal board 300 are both provided with ventilation grooves 500, which are helpful for air circulation and prevent the equipment from overheating due to long-time operation.

[0039] The front panel of the resistance testing instrument 400 is provided with a power switch 1, a label 2, a liquid crystal display screen 3, a test result indicator light 4, a cursor control confirmation key 5, a measurement shortcut key 6, a setting shortcut key 7, a system shortcut key 8, a start / stop shortcut key 9, a USB interface 10, and a TF card slot 11.

[0040] The label 2 is used to display the factory model and the name of the instrument. The liquid crystal display screen 3 is a 7-inch color liquid crystal display screen. The test result indicator light 4 is green when the test is qualified (PASS), and red when the test is unqualified (FAIL). The cursor control confirmation key 5 is used to move between fields on the LCD display page. When the cursor moves to a certain field, the field is displayed in reverse orange on the liquid crystal display. When updating the modified value, press the middle confirmation key to complete the modification. Pressing the measurement shortcut key 6 can enter the measurement interface; pressing the setting shortcut key 7 can enter the parameter setting interface; pressing the system shortcut key 8 can enter the system setting interface; and pressing the start / stop shortcut key 9 can start or pause the test. The USB interface 10 allows the test results to be stored and read through a U disk; and the TF card slot 11 realizes data reading function.

[0041] The back panel of the resistance testing instrument 400 is provided with a test interface 12, a high-voltage output interface 13, a communication interface 14, a power socket 15, and a grounding column 16. The test interface 12 is used to connect the measured object. The high-voltage output interface 13 has high-voltage output when starting the test. The communication interface 14 is connected to a computer through a data line to realize communication with the computer. The power socket 15 is used to connect a power cord to input 220V alternating voltage. The grounding column 16 is the grounding end of the instrument.

[0042] The back plate of the instrument cabinet 100 is provided with a groove 150 around the operation opening 110, and a sealing gasket 160 is arranged in the groove 150, and the terminal plate 300 is provided with a pressing strip 340 matched with the groove 150. When the terminal plate 300 is pushed into the operation opening 110, the pressing strip 340 is embedded in the groove 150, and the sealing gasket 160 can fill the gap between the terminal plate and the back plate of the instrument cabinet, so as to realize the sealing effect.

[0043] 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 the changes or replacements within the technical range disclosed by the present application, which 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. A multi-channel insulation resistance tester, comprising: The instrument cabinet is characterized in that a regulating and controlling device is arranged on the back plate of the instrument cabinet, and a terminal plate is arranged on the regulating and controlling device. The regulating and controlling device comprises a back plate support, an extension support and a wire harness fastener; an operation opening is formed on the back plate of the instrument cabinet, and the back plate support is arranged on the inner side of the back plate of the instrument cabinet on both sides of the operation opening; the wire harness fastener is arranged on the back plate support; the fixed end of the extension support is connected with the back plate support, the movable end of the extension support passes through the operation opening and is connected with the terminal plate, and the wire harness led out from the terminal plate is clamped on the wire harness fastener.

2. A multi-channel insulation resistance tester according to claim 1, wherein The terminal plate comprises a main plate, two groups of high-voltage output ports and a plurality of board cards arranged between the two groups of high-voltage output ports in parallel; the high-voltage output ports are arranged on the main plate; the board cards are provided with return end pins and indicator lights.

3. A multi-channel insulation resistance tester according to claim 2, wherein The number of the board cards is 16; each group of the high-voltage output ports comprises 8 ports, and each port corresponds to one board card; each board card is provided with two groups of return end pins, and each group of the return end pins comprises 8 pins.

4. A multi-channel insulation resistance tester according to claim 3, wherein The wire harness fastener comprises a rectangular frame and a plurality of vertical plates arranged inside the rectangular frame; the side surface of the vertical plate is provided with a wire harness groove, and the groove opening of the wire harness groove is provided with a wire harness pressing rod; and the wire harness pressing rod is connected with the vertical plate through a bolt.

5. A multi-channel insulation resistance tester according to claim 4, wherein The front side of the instrument cabinet is sequentially provided, from top to bottom, with an upper cabinet door, a drawer for carrying a keyboard and a mouse and a lower cabinet door; the lower cabinet door and the terminal plate are both provided with ventilation grooves.

6. A multi-channel insulation resistance tester according to claim 5, wherein The interior of the instrument cabinet is provided with a resistance testing instrument; the front panel of the resistance testing instrument is provided with a power switch, a label, a liquid crystal display, a test result indicator light, a cursor control confirmation key, a measurement shortcut key, a setting shortcut key, a system shortcut key, a start / stop shortcut key, a USB interface and a TF card slot.

7. A multi-channel insulation resistance tester according to claim 6, wherein The back panel of the resistance testing instrument is provided with a test interface, a high-voltage output interface, a communication interface, a power socket and a grounding column.

8. A multi-channel insulation resistance tester according to claim 7, wherein The outer side of the back plate of the instrument cabinet is provided with a sunken groove around the operation opening; a sealing gasket is arranged in the sunken groove; and the terminal plate is provided with a pressing strip matched with the sunken groove.

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