Integrated constant-temperature water bath cable insulation resistance detection device

Abstract

The utility model discloses an integrated constant-temperature water bath cable insulation resistance detection device which comprises a bearing seat, a constant-temperature water bath assembly used for simulating a cable temperature environment is arranged above the bearing seat, and a heating microwave assembly used for adjusting the cable temperature environment is arranged on the bearing seat and located at the bottom of the constant-temperature water bath assembly. A control assembly is arranged in the bearing seat, the control assembly is connected with the constant-temperature water bath assembly and the heating microwave assembly, and a testing assembly used for cable insulation resistance detection is arranged on one side of the control assembly. Through the synergistic effect of the constant-temperature water bath assembly and the heating microwave assembly, the cable temperature environment can be more effectively controlled, the temperature fluctuation is reduced, and the stability of the test temperature is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable detection, in particular to an integrated constant temperature water bath cable insulation resistance detection device. Background Art

[0002] Cable insulation resistance measurement is a test method used to evaluate the quality of cable insulation. It can detect whether the cable insulation has leakage, aging or damage.

[0003] The traditional cable insulation resistance measurement is measured by a constant temperature water bath device and an insulation resistance tester. The constant temperature water bath device uses a glass container. The temperature of the upper and lower layers of the container is uneven, the heat loss is relatively large, and the test temperature fluctuates greatly, making it difficult to ensure a constant test temperature.

[0004] At the same time, a large number of tiny bubbles are generated on the outer surface of the cable during the heating process in the constant temperature water bath container, and it is difficult to eliminate artificial shaking, which seriously affects the accuracy of the test results.

[0005] The insulation resistance tester and the constant temperature water bath device are separate, which often leads to poor electrical connection between the input pole and the constant temperature water bath device, resulting in the inability to accurately measure the current at the high voltage end.

[0006] Therefore, an integrated constant temperature water bath cable insulation resistance detection device is proposed. Utility Model Content

[0007] The utility model aims to provide an integrated constant temperature water bath cable insulation resistance detection device to solve the problem of poor accuracy of traditional cable insulation resistance measurement proposed in the above background technology.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: an integrated constant temperature water bath cable insulation resistance detection device, comprising a bearing seat, a constant temperature water bath component for simulating the cable temperature environment is arranged above the bearing seat, and a heating microwave component for adjusting the cable temperature environment temperature is arranged at the bottom of the bearing seat.

[0009] A control component is disposed inside the bearing seat, and the control component is connected to a constant temperature water bath component and a heating microwave component.

[0010] A test component for detecting the insulation resistance of the cable is arranged on one side of the control component.

[0011] Preferably, the constant temperature water bath assembly comprises a glass bathtub disposed on a bearing seat, the upper portion of the glass bathtub is connected to a cover plate via a hinge shaft, and a handle is disposed on the top of the cover plate.

[0012] The outer peripheral side of the glass bathtub is provided with an overflow port.

[0013] The outer peripheral side of the cover plate is provided with a gusset plate for fixing the cable test, and the gusset plate is provided with a plurality of groups of slots for engaging the cables to be tested.

[0014] Preferably, a heat-insulating cover is provided on the outer periphery of the glass bathtub, and the heat-insulating cover is made of polyurethane material.

[0015] Preferably, the heating microwave assembly comprises a metal plate, and microwave generators are symmetrically arranged on both sides of the metal plate.

[0016] Preferably, a stirring blade is provided in the middle of the metal plate, and the input end of the stirring blade is connected to the output end of the stirring motor.

[0017] The metal plate is also provided with an electric heating rod, and the shape of the electric heating rod is ring-shaped.

[0018] A temperature sensor is arranged on the metal plate next to the electric heating rod;

[0019] The metal plate is connected to a protective grid plate through three groups of support rods, the stirring motor is arranged below the grid plate, and the stirring blades are located below the grid plate.

[0020] Preferably, an electrical socket is provided on the upper portion of the supporting seat, so that the temperature sensor, the electric heating rod, the microwave generator and the stirring motor can be electrically connected through the electrical socket.

[0021] Preferably, the control component comprises a water bath temperature controller, and a microwave controller is arranged on one side of the water bath temperature controller.

[0022] Preferably, the test assembly includes an insulation resistance tester, a high-voltage interface of the insulation resistance tester is arranged on a side of the support base located on the microwave controller, and an output end of the high-voltage interface is connected to a crocodile clip, and an input electrode of the insulation resistance tester is connected to a metal plate.

[0023] Preferably, a power interface for connecting the device to electricity is provided on the outer periphery of the supporting base.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] The utility model reduces the temperature loss in the container by adding a heat preservation layer on the outer wall of the glass container, so that the temperature is constant; and adds stirring blades at the bottom of the container to accelerate the flow of liquid in the upper and lower layers of the glass bathtub, so that the temperature of the upper and lower layers is uniform.

[0026] A microwave generator is added to the glass bathtub to eliminate small bubbles on the outer surface of the cable due to the increase in temperature, so that the cable surface is completely immersed in the liquid, which is more convenient and efficient than the traditional method.

[0027] Through the synergistic effect of the constant temperature water bath component and the heating microwave component, the temperature of the cable temperature environment can be more effectively controlled, the temperature fluctuation can be reduced, and the stability of the test temperature can be improved.

[0028] The integrated design integrates the constant temperature water bath component, heating microwave component, control component and test component, making the operation easier and more efficient, and improving the user experience. The constant temperature water bath component and the insulation resistance tester are directly connected, avoiding the problem of poor input pole connection that may occur in the split device, and ensuring accurate measurement of the high voltage end current. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0030] Figure 2 It is a schematic diagram of a partial cutaway structure of an embodiment of the utility model;

[0031] Figure 3 It is a schematic diagram of the internal structure of an embodiment of the utility model;

[0032] Figure 4 This is a schematic diagram of the structure of the bearing seat of an embodiment of the utility model;

[0033] Figure 5 This is a schematic diagram of the structure of a heating microwave assembly according to an embodiment of the utility model.

[0034] In the figure: 1. supporting base; 101. electrical socket; 102. power interface; 2. constant temperature water bath assembly; 201. glass bathtub; 202. cover; 203. handle; 204. overflow; 205. buckle plate; 2051. card slot; 206. insulation cover; 3. heating microwave assembly; 301. metal plate; 302. microwave generator; 303. stirring fan blade; 304. electric heating rod; 305. temperature sensor; 306. support rod; 307. grid plate; 4. control assembly; 401. water bath temperature controller; 402. microwave controller; 5. test assembly; 501. insulation resistance tester; 502. high voltage interface; 503. alligator clip. DETAILED DESCRIPTION

[0035] In order to solve the problem of poor accuracy in traditional cable insulation resistance measurement, the embodiment of the utility model provides an integrated constant temperature water bath cable insulation resistance detection device. The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-5 The utility model provides an integrated constant temperature water bath cable insulation resistance detection device, comprising a bearing seat 1, a constant temperature water bath assembly 2 for simulating a cable temperature environment is arranged above the bearing seat 1, the constant temperature water bath assembly 2 comprises a glass bathtub 201 arranged on the bearing seat 1, the upper part of the glass bathtub 201 is connected to a cover plate 202 through a hinge shaft, a handle 203 is arranged on the top of the cover plate 202, an overflow port 204 is provided on the outer peripheral side of the glass bathtub 201, a buckle plate 205 for fixing cable testing is provided on the outer peripheral side of the cover plate 202, and a plurality of groups of card slots 2051 for clamping the cables to be tested are provided at the buckle plate 205, and an insulation cover 206 is provided on the outer periphery of the glass bathtub 201, and the insulation cover 206 is made of polyurethane material.

[0037] The bearing seat 1 is located at the bottom of the constant temperature water bath assembly 2 and is provided with a heating microwave assembly 3 for adjusting the temperature of the cable and the ambient temperature. The heating microwave assembly 3 includes a metal plate 301, and microwave generators 302 are symmetrically arranged on both sides of the metal plate 301. A stirring blade 303 is arranged in the middle of the metal plate 301, and the input end of the stirring blade 303 is connected to the output end of the stirring motor. The metal plate 301 is also provided with an electric heating rod 304, and the shape of the electric heating rod 304 is annular. A temperature sensor 305 is arranged on the metal plate 301 next to the electric heating rod 304; the metal plate 301 is connected to a grid plate 307 for protection through three groups of support rods 306, the stirring motor is arranged below the grid plate 307, and the stirring blade 303 is located below the grid plate 307.

[0038] A control component 4 is disposed inside the supporting base 1 . The control component 4 includes a water bath temperature controller 401 . A microwave controller 402 is disposed on one side of the water bath temperature controller 401 .

[0039] The control component 4 is connected to the constant temperature water bath component 2 and the heating microwave component 3.

[0040] A test component 5 for detecting the insulation resistance of the cable is disposed on one side of the control component 4. The test component 5 includes an insulation resistance tester 501, a high voltage interface 502 of the insulation resistance tester 501 is disposed on a side of the carrier 1 located at the microwave controller 402, and an output end of the high voltage interface 502 is connected to an alligator clip 503, and an input electrode of the insulation resistance tester 501 is connected to the metal plate 301.

[0041] An electrical socket 101 is disposed on the upper portion of the support base 1 , so that the temperature sensor 305 , the electric heating rod 304 , the microwave generator 302 , and the stirring motor can be electrically connected through the electrical socket 101 .

[0042] The outer periphery of the supporting base 1 is provided with a power interface 102 for connecting the device to electricity.

[0043] The working principle of the integrated constant temperature water bath cable insulation resistance detection device provided by the utility model is as follows: when in use,

[0044] Step 1: Connect the power interface 102 of the supporting base 1 to an AC 220V power source.

[0045] Step 2: Add pure water into the glass bathtub 201 , and stop adding water when the pure water flows out from the overflow port 204 of the glass bathtub 201 .

[0046] Step 3: Turn on the water bath temperature controller 401, control the electric heating rod 304 and the stirring motor to operate, heat the pure water through the electric heating rod 304 until the temperature of the pure water reaches the specified temperature of the test, and then the temperature sensor 305 detects the temperature of the pure water. At this time, the electric heating rod 304 is controlled to stop heating and keep the pure water constant within the specified temperature.

[0047] Step 4: Open the cover 202 through the handle 203, put the cable to be tested into the glass bathtub 201, fix both ends of the cable to be tested at the slots 2051 of the buckle plate 205 of the cover 202, heat the pure water again, and start timing after the pure water temperature returns to the test temperature.

[0048] Step 5: After the cable to be tested reaches the specified test time in the glass bathtub 201 , the microwave controller 402 controls the microwave generator 302 to operate, so that the bubbles in the water expand and release rapidly, thereby eliminating the bubbles on the outer surface of the cable immersed in the glass bathtub 201 .

[0049] Step 6: Turn on the power of the insulation resistance tester 501, perform zero adjustment and then charge; clamp the alligator clip 503 at the high voltage interface 502 onto the cable conductor on the cover 202; and perform insulation resistance test on the cable through the insulation resistance tester 501.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated constant temperature water bath cable insulation resistance detection device, characterized in that: The invention comprises a bearing seat (1), a constant temperature water bath component (2) for simulating the temperature environment of the cable is arranged above the bearing seat (1), and a heating microwave component (3) for adjusting the temperature of the cable environment is arranged at the bottom of the bearing seat (1) and located at the constant temperature water bath component (2). A control component (4) is disposed inside the bearing seat (1), and the control component (4) is connected to the constant temperature water bath component (2) and the heating microwave component (3). A test component (5) for detecting the insulation resistance of the cable is provided on one side of the control component (4).

2. The integrated constant temperature water bath cable insulation resistance detection device according to claim 1, characterized in that: The constant temperature water bath assembly (2) comprises a glass bathtub (201) arranged on a supporting seat (1), the upper part of the glass bathtub (201) being connected to a cover plate (202) via a hinge shaft, and a handle (203) being arranged at the top of the cover plate (202). An overflow port (204) is provided on the outer peripheral side of the glass bathtub (201). A buckle plate (205) for fixing the cable during testing is provided on the outer peripheral side of the cover plate (202), and a plurality of groups of slots (2051) for engaging the cables to be tested are provided on the buckle plate (205). The outer periphery of the glass bathtub (201) is provided with a heat-insulating sleeve (206), and the heat-insulating sleeve (206) is made of polyurethane material.

3. The integrated constant temperature water bath cable insulation resistance detection device according to claim 2, characterized in that: The heating microwave component (3) comprises a metal plate (301), and microwave generators (302) are symmetrically arranged on both sides of the metal plate (301).

4. The integrated constant temperature water bath cable insulation resistance detection device according to claim 3, characterized in that: A stirring blade (303) is provided in the middle of the metal plate (301), and an input end of the stirring blade (303) is connected to an output end of a stirring motor. The metal plate (301) is also provided with an electric heating rod (304), and the electric heating rod (304) is in a ring shape. A temperature sensor (305) is provided on the metal plate (301) next to the electric heating rod (304); The metal plate (301) is connected to a protective grid plate (307) via three groups of support rods (306); the stirring motor is arranged below the grid plate (307); and the stirring blades (303) are located below the grid plate (307).

5. The integrated constant temperature water bath cable insulation resistance detection device according to claim 4, characterized in that: An electrical socket (101) is provided on the upper portion of the support base (1), so that the temperature sensor (305), the electric heating rod (304), the microwave generator (302), and the stirring motor can be electrically connected via the electrical socket (101).

6. The integrated constant temperature water bath cable insulation resistance detection device according to claim 5, characterized in that: The control component (4) comprises a water bath temperature controller (401), and a microwave controller (402) is arranged on one side of the water bath temperature controller (401).

7. The integrated constant temperature water bath cable insulation resistance detection device according to claim 6, characterized in that: The test assembly (5) comprises an insulation resistance tester (501), wherein a high voltage interface (502) of the insulation resistance tester (501) is arranged on a side of the support base (1) located on the microwave controller (402), and an output end of the high voltage interface (502) is connected to an alligator clip (503), and an input electrode of the insulation resistance tester (501) is connected to the metal plate (301).

8. The integrated constant temperature water bath cable insulation resistance detection device according to claim 7, characterized in that: The outer periphery of the supporting seat (1) is provided with a power supply interface (102) for connecting the device to electricity.

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