CN217278624U

CN217278624U - DC resistance tester

Info

Publication number: CN217278624U
Application number: CN202220228105.2U
Authority: CN
Inventors: 李丰; 廖助富
Original assignee: Wuhan Uhv Power Technology Co ltd
Current assignee: Wuhan Uhv Power Technology Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-08-23
Anticipated expiration: 2032-01-27

Abstract

The utility model relates to a circuit detection technical field specifically is a direct current resistance tester, including test box, quick-witted case, heat radiation structure and protective structure, the articulated case lid of test box upper end sets up protective structure in the test box inner wall, and the test box internal division is equipped with the mounting groove that is used for the installation machine case, and quick-witted case fixed connection is in the mounting groove, and heat radiation structure is connected in the laminating of quick-witted case side, and inside heat radiation structure was connected to protective structure, beneficial effect was: can effectively increase quick-witted case radiating effect through setting up heat radiation structure, prevent that quick-witted incasement portion heat can not effectively give off and influence the result of use, can prolong quick-witted incasement portion structure's life to be provided with the protection architecture to heat radiation structure, can prevent through protection architecture that heat radiation structure from receiving the collision damage, can effectively completely cut off external dust steam simultaneously, increase waterproof dustproof effect.

Description

DC resistance tester

Technical Field

The utility model relates to the circuit detects technical field, specifically is a direct current resistance tester.

Background

The DC resistance tester (microohm meter) is a high-precision upgrading product for replacing DC single-arm and double-arm bridges. The DC resistance rapid tester adopts an advanced switching power supply technology, and a measurement result is displayed by a dot-matrix liquid crystal. The defect that the value displayed by an LED of other similar products is inconvenient to read in the sun is overcome, and the automatic arc extinction function is achieved.

General main part of direct current resistance tester among the prior art all installs in the box, and the box is airtight form, leads to inside radiating effect relatively poor, and long-time the use may be because high temperature influences the result of use, causes the whole life of device to shorten, and general heat radiation structure can not effectual waterproof dustproof again, probably leads to steam to get into the use that influences direct current resistance tester at the hot in-process of fan, for this reason, the utility model provides a direct current resistance tester is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a direct current resistance tester to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a direct current resistance tester, includes test box, quick-witted case, heat radiation structure and protective structure, the articulated case lid in test box upper end, set up protective structure in the test box inner wall, the test box is middle to be opened and is equipped with the mounting groove that is used for installing quick-witted case, quick-witted case fixed connection is in the mounting groove, heat radiation structure is connected in the laminating of quick-witted case side, heat radiation structure is connected to inside the protective structure.

Preferably, the side edge of the lower end of the box cover protrudes to form a sealing cover, the sealing cover is arranged on the outer side of the upper end of the test box in a sealing mode, the two sides of the front lower end of the sealing cover are hinged to the lock catches, the front upper end of the test box is provided with a connecting block corresponding to the lock catches, and the lock catches are fixedly connected to the connecting block to fixedly connect the box cover to the upper end of the test box.

Preferably, the case is inserted into the mounting groove, the upper end of the case is fixedly connected with the control panel, and the control panel is connected with the case through the connecting bolt and is fixedly connected with the case in the mounting groove.

Preferably, the protective structure includes the heat dissipation chamber of seting up in the test box lateral wall, the thermovent has been seted up on the lateral wall of heat dissipation chamber both sides, it is connected with the dust screen to inlay in the thermovent, a plurality of evenly distributed's the hole that falls into water is seted up to heat dissipation chamber lower extreme, the downthehole packing that falls into water has the filter core, the slot has been seted up on the heat dissipation intracavity lateral wall.

Preferably, the heat radiation structure includes a heat conduction plate, the heat conduction plate is L-shaped, the heat conduction plate is wrapped on the outer side of the case, wherein a heat radiation fin is arranged on the outer side of the heat conduction plate close to the left end and the right end in a protruding mode, and the heat radiation fin penetrates through a slot formed in the inner side wall of the heat radiation cavity in the protection structure and is connected into the heat radiation cavity.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up heat radiation structure and can effectively increase quick-witted case radiating effect, prevent that quick-witted incasement portion heat can not effectively give off and influence the result of use, can prolong quick-witted incasement portion structure's life to be provided with the protection architecture to heat radiation structure, can prevent through protection architecture that heat radiation structure from receiving the collision damage, can effectively completely cut off external dust steam simultaneously, increase waterproof dustproof effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the internal structure of fig. 1.

In the figure: the test box comprises a test box 1, a box cover 2, a sealing cover 3, a lock catch 4, a connecting block 5, a heat dissipation cavity 6, a heat dissipation port 7, a water falling hole 8, a mounting groove 9, a heat conduction plate 10, a heat dissipation fin 11, a case 12 and a control panel 13.

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 to 2, the present invention provides a technical solution: a direct current resistance tester comprises a test box 1, a case 12, a heat dissipation structure and a protection structure, wherein the upper end of the test box 1 is hinged with a box cover 2, the protection structure is arranged in the inner wall of the test box 1, a mounting groove 9 for mounting the case 12 is formed in the middle of the test box 1, the case 12 is fixedly connected in the mounting groove 9, the side edge of the case 12 is attached and connected with the heat dissipation structure, and the heat dissipation structure is connected to the inside of the protection structure;

a sealing cover 3 is convexly arranged on the side edge of the lower end of the box cover 2, the sealing cover 3 is hermetically arranged on the outer side of the upper end of the test box 1, two sides of the lower end of the front side of the sealing cover 3 are hinged with a lock catch 4, a connecting block 5 corresponding to the lock catch 4 is arranged on the upper end of the front side of the test box 1, the lock catch 4 is fixedly connected to the connecting block 5 to fixedly connect the box cover 2 to the upper end of the test box 1, the sealing effect of the box cover 2 can be improved through the sealing cover 3, the surface of an internal control panel 13 is protected, the protection performance is improved, the lock catch 4 and the connecting block 5 can be conveniently opened and closed and can reduce the box cover 2 in a necking mode, and the fixing effect of the box cover 2 is improved;

the case 12 is inserted into the mounting groove 9, the upper end of the case 12 is fixedly connected with the control panel 13, the control panel 13 is connected with bolts, the control panel 13 and the case 12 are fixedly connected into the mounting groove 9 through the connecting bolts, and the control panel 13 is fixed through the bolts, so that the stability of the control panel 13 and the lower case 12 after mounting can be improved, the use effect is improved, and the protection performance is improved;

the protective structure comprises a heat dissipation cavity 6 formed in the side wall of the test box 1, heat dissipation ports 7 are formed in the outer side walls of the two sides of the heat dissipation cavity 6, a dustproof net is connected in the heat dissipation ports 7 in an embedded mode, a plurality of uniformly distributed water falling holes 8 are formed in the lower end of the heat dissipation cavity 6, filter elements are filled in the water falling holes 8, inserting grooves are formed in the inner side wall of the heat dissipation cavity 6, the protective structure can effectively prevent the heat dissipation structure inside from being damaged by collision, the dustproof and waterproof effects can be achieved, and the using effect is improved;

heat radiation structure includes heat-conducting plate 10, heat-conducting plate 10 is L shape, the both sides heat-conducting plate cladding is in the quick-witted case 12 outside, wherein lean on the heat-conducting plate 10 outside protrusion of left and right-hand member to be equipped with fin 11, fin 11 passes the slot of seting up on the 6 inside walls in heat dissipation chamber among the protective structure, be connected to in the heat dissipation chamber 6, heat that can be quick through heat radiation structure distributes in quick-witted case 12 is derived, and distribute in heat dissipation chamber 6 through fin 11, discharge through seting up thermovent 7 in the 6 outside in heat dissipation chamber, increase heat dispersion, prevent the result of use of high temperature influence machine case 12 inside spare part.

The working principle is as follows: in operation, can increase the sealed effect of case lid 2 through closing cap 3, protect inside control panel 13 surface, increase barrier propterty, hasp 4 and connecting block 5 can conveniently open and close and necking down case lid 2, increase the fixed effect of case lid 2, it is fixed with control panel 13 through the bolt, can increase control panel 13 and lower extreme machine case 12 installation back stability, increase the result of use, improve barrier propterty, can effectively prevent collision damage inside heat radiation structure through protective structure, and can play dustproof and waterproof's effect, increase the result of use, can be quick derive the heat that gives off in the machine case 12 through heat radiation structure, and give off in the heat dissipation chamber 6 through fin 11, discharge through offering the thermovent 7 in the heat dissipation chamber 6 outside, increase heat dispersion, prevent the result of use of high temperature influence machine case 12 internal parts.

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 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 direct current resistance tester, includes test box (1), quick-witted case (12), heat radiation structure and protective structure, its characterized in that: the test box is characterized in that the upper end of the test box (1) is hinged to the box cover (2), a protection structure is arranged in the inner wall of the test box (1), a mounting groove (9) used for mounting a case (12) is formed in the middle of the test box (1), the case (12) is fixedly connected in the mounting groove (9), a heat dissipation structure is attached to the side edge of the case (12), and the heat dissipation structure is connected to the inside of the protection structure.

2. The direct current resistance tester according to claim 1, wherein: case lid (2) lower extreme side protrusion is equipped with closing cap (3), the sealed lid of closing cap (3) is established in test box (1) upper end outside, closing cap (3) openly lower extreme both sides articulated hasp (4), test box (1) openly upper end is provided with connecting block (5) that correspond with hasp (4), hasp (4) fixed connection is on connecting block (5) with case lid (2) fixed connection in test box (1) upper end.

3. The direct current resistance tester according to claim 1, wherein: the case (12) is inserted into the mounting groove (9), the upper end of the case (12) is fixedly connected with a control panel (13), and the control panel (13) is connected with a connecting bolt and fixedly connected with the control panel (13) and the case (12) in the mounting groove (9) through the connecting bolt.

4. The direct current resistance tester according to claim 1, wherein: the protection structure comprises a heat dissipation cavity (6) formed in the side wall of the test box (1), heat dissipation ports (7) are formed in the outer side walls of the two sides of the heat dissipation cavity (6), a dustproof net is embedded and connected into the heat dissipation ports (7), a plurality of uniformly distributed water falling holes (8) are formed in the lower end of the heat dissipation cavity (6), a filter element is filled in the water falling holes (8), and slots are formed in the inner side wall of the heat dissipation cavity (6).

5. The direct current resistance tester according to claim 1, wherein: the heat dissipation structure comprises a heat conduction plate (10), wherein the heat conduction plate (10) is L-shaped, the heat conduction plate is wrapped on the outer side of the case (12), a heat dissipation sheet (11) is arranged on the outer side of the heat conduction plate (10) close to the left end and the right end in a protruding mode, and the heat dissipation sheet (11) penetrates through a slot formed in the inner side wall of the heat dissipation cavity (6) in the protection structure and is connected into the heat dissipation cavity (6).