CN211718471U

CN211718471U - Motor three-phase leakage current tester

Info

Publication number: CN211718471U
Application number: CN202020289173.0U
Authority: CN
Inventors: 王兵
Original assignee: Zhejiang Oufei Testing And Certification Co ltd
Current assignee: Zhejiang Oufei Testing And Certification Co ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-10-20
Anticipated expiration: 2030-03-11

Abstract

The utility model discloses a motor three-phase leakage current tester, including the current tester body, four bases are fixed to current tester body bottom, the current tester body openly is provided with display screen, test socket operating key, test socket, voltage regulation knob, power key, reset key, be fixed with the rubber circle in the test socket, the current tester body includes impedance converter, range converter, alternating current-direct current converter, circuit amplifier and indicator, and five components and parts are all fixed on the support frame, the level is provided with the baffle below the support frame; the utility model has the advantages of reasonable design, convenient to use, the radiating effect is superior, and the security is high, has seted up radiator fan in the bottom of current tester, cooperates the inside semiconductor refrigeration piece to dispel the heat the cooling to the electronic components in the current tester, avoids constantly gathering the condition that leads to equipment trouble at the in-process electronic components temperature that tests the motor.

Description

Motor three-phase leakage current tester

Technical Field

The utility model belongs to the technical field of the motor, specifically be a motor three-phase leakage current tester.

Background

The three-phase asynchronous motor is one of induction motors, and is a motor supplied with power by simultaneously connecting 380V three-phase alternating current (phase difference of 120 degrees), and is called a three-phase asynchronous motor because a rotor and a stator rotating magnetic field of the three-phase asynchronous motor rotate in the same direction and at different rotating speeds and have slip ratios. Three motors need carry out the electric current to it and test after the production and processing, and the test needs the leakage current tester to test, and general tester is box body column structure, and holistic leakproofness is high, and at the in-process of equipment work, inside components and parts can produce a large amount of heats and gather in inside, can produce the condition of high temperature during long time use, have seriously influenced the life of whole equipment.

Aiming at the problems in the related art, an effective solution is not provided at present, and therefore, a three-phase leakage current tester for the motor is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a motor three-phase leakage current tester has advantages such as strong, the security of thermal diffusivity, has solved current tester thermal diffusivity poor, the poor scheduling problem of security.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a motor three-phase leakage current tester, includes the current tester body, current tester body bottom is fixed with four bases, the current tester body openly is provided with display screen, test socket operating key, test socket, voltage regulation knob, power key, reset key, the test socket internal fixation has the rubber circle, the current tester body includes impedance converter, range converter, alternating current-direct current converter, circuit amplifier and indicator, and five components and parts are all fixed on the support frame, support frame below level is provided with the baffle, the block has the semiconductor refrigeration piece in the middle of the baffle, semiconductor refrigeration piece below is provided with radiator fan.

In a further improvement, the display screen, the test socket operating key, the test socket, the voltage adjusting knob, the power key, the reset key and the current tester body are electrically connected.

In a further improvement, a dustproof net is fixed on the bottom surface of the radiating fan.

In a further improvement, the inner ring of the rubber ring is provided with a plurality of rubber strips, the plurality of rubber strips are annularly arranged by taking the inner ring as a circle center, and one ends of the rubber strips are fixed with the inner ring.

In a further improvement, the heat dissipation end of the semiconductor refrigeration piece faces the heat dissipation fan, and the heat absorption end faces the support frame.

In a further improvement, the surface of the clapboard is fully distributed with round holes.

(III) advantageous effects

Compared with the prior art, the utility model provides a motor three-phase leakage current tester possesses following beneficial effect:

1. this kind of motor three-phase leakage current tester, structural design is reasonable, and the radiating effect is superior, and the security is high, has seted up radiator fan in current tester's bottom, cooperates the inside semiconductor refrigeration piece to dispel the heat the cooling to the electronic components in the current tester, avoids constantly gathering the condition that leads to equipment to break down at the in-process electronic components temperature that tests the motor.

2. This kind of motor three-phase leakage current test is provided with the rubber circle in testing socket, utilizes the rubber circle to provide the protection to testing socket, when not using the tester, can avoid the dust to enter into testing socket, has guaranteed testing socket's cleanliness.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a cross-sectional view of the test socket of the present invention;

FIG. 4 is a schematic view of the structure of the partition plate of the present invention;

fig. 5 is a block diagram of the electrical connection of the present invention.

In the figure: 1. a current tester body; 2. a base; 3. a display screen; 4. testing socket operating keys; 5. a power key; 6. a reset key; 7. a voltage adjustment knob; 8. a test socket; 9. a dust screen; 10. an impedance transformer; 11. a range converter; 12. an AC-DC converter; 13. a circuit amplifier; 14. an indicator; 15. a support frame; 16. a partition plate; 17. a semiconductor refrigeration sheet; 18. a heat radiation fan; 19. a rubber ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a motor three-phase leakage current tester, includes

current tester body

1, 1 bottom of current tester body is fixed with four bases 2, current tester body 1 openly is provided with display screen 3, test socket manipulating key 4, test socket 8, voltage regulation knob 7, power key 5, reset key 6, test socket 8 internal fixation has rubber circle 19, current tester body 1 includes impedance converter 10, range converter 11, alternating current-direct current converter 12, circuit amplifier 13 and indicator 14, and five components and parts are all fixed on support frame 15, support frame 15 below level is provided with baffle 16, the block has semiconductor refrigeration piece 17 in the middle of the baffle 16, semiconductor refrigeration piece 17 below is provided with radiator fan 18.

As shown in fig. 5, the display screen 3, the test socket operation key 4, the test socket 8, the voltage adjusting knob 7, the power key 5, the reset key 6 and the current tester body 1 are electrically connected.

As shown in fig. 1, radiator fan 18 bottom surface is fixed with dust screen 9, avoids during the dust enters into current tester body 1, the inner circle of rubber circle 19 is provided with a plurality of rubber strips, and a plurality of rubber strips use the inner circle to arrange as centre of a circle annular, and rubber strip one end is fixed with the inner circle, blocks test socket through the rubber strip in the rubber circle 19, avoids the dust to enter into, semiconductor refrigeration piece 17's heat dissipation end is towards radiator fan 18, and the heat absorption end is towards support frame 15, cools down through semiconductor refrigeration piece 17 to current tester body 1 inside.

As shown in fig. 4, the surface of the partition 16 is covered with round holes to ensure the heat to be dissipated normally.

The semiconductor refrigerating plate 17 adopts a TEC1-12706 model and adopts 12V power supply.

The electrical components presented in the document are electrically connected to an external master controller and 220V commercial power, and the master controller can be a conventional known device controlled by a computer or the like.

The working principle is as follows: when using, insert the output line of circuit in the motor in the test socket 8 of current tester body 1, as shown in fig. 3, the rubber strip in the rubber circle 19 can the incurving when inserting, can support the output line in the test socket 8, guarantees the fastness, opens power key 5, detects the motor through test socket operating key 4 and voltage adjust knob 7, and the data of detection pass through display screen 3 and show. In the testing process, the heat absorption end of the semiconductor refrigeration piece 17 is used for generating cold air to cool components in the current tester body 1, the heat release end of the semiconductor refrigeration piece 17 is used for dissipating heat through the cooling fan 18, and heat accumulation in the current tester body 1 is avoided, so that the service life of the whole device is prolonged.

To sum up, the utility model has the advantages of reasonable structure, superior heat dissipation effect and high safety, the bottom of the current tester is provided with the heat dissipation fan 18, and the semiconductor refrigeration piece 17 inside is matched to dissipate heat and cool the electronic components in the current tester, so as to avoid the condition that the temperature of the electronic components is accumulated continuously to cause equipment failure in the process of testing the motor; and be provided with rubber circle 19 in test socket 8, utilize rubber circle 19 to provide the protection to test socket 8, when not using the tester, can avoid the dust to enter into test socket 8, guaranteed test socket 8's cleanliness.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a motor three-phase leakage current tester, includes current tester body (1), its characterized in that: the electric current tester body (1) bottom is fixed with four bases (2), electric current tester body (1) openly is provided with display screen (3), test socket operating key (4), test socket (8), voltage control knob (7), power key (5), reset key (6), test socket (8) internal fixation has rubber circle (19), electric current tester body (1) is including impedance converter (10), range converter (11), alternating current-direct current converter (12), circuit amplifier (13) and indicator (14), and five components and parts are all fixed on support frame (15), support frame (15) below level is provided with baffle (16), the block has semiconductor refrigeration piece (17) in the middle of baffle (16), semiconductor refrigeration piece (17) below is provided with radiator fan (18).

2. The motor three-phase leakage current tester of claim 1, wherein: the display screen (3), the test socket operating key (4), the test socket (8), the voltage adjusting knob (7), the power key (5), the reset key (6) and the current tester body (1) are electrically connected.

3. The motor three-phase leakage current tester of claim 1, wherein: and a dustproof net (9) is fixed on the bottom surface of the heat radiation fan (18).

4. The motor three-phase leakage current tester of claim 1, wherein: the inner ring of the rubber ring (19) is provided with a plurality of rubber strips, the rubber strips are annularly arranged by taking the inner ring as a circle center, and one ends of the rubber strips are fixed with the inner ring.

5. The motor three-phase leakage current tester of claim 1, wherein: the heat dissipation end of the semiconductor refrigeration sheet (17) faces the heat dissipation fan (18), and the heat absorption end faces the support frame (15).

6. The motor three-phase leakage current tester of claim 1, wherein: round holes are distributed on the surface of the clapboard (16).