Auxiliary junction box for electrical test of power transformer

Abstract

The utility model belongs to the technical field of electrical equipment, and particularly relates to a power transformer electrical test auxiliary junction box which comprises a box body, a switch door is hinged to the surface of the box body, a line concentration pipe penetrates through the top of the box body and is fixedly connected with the top of the box body, and an adjusting mechanism is arranged on the inner wall of the box body. According to the utility model, the distance between the connecting terminals is adjusted as required through the adjusting mechanism, so that the box body can adapt to the connection of leads with different specifications and numbers, the use flexibility is improved, the disorder between the leads can be avoided through adjusting the distance between the connecting terminals, the crossing and winding of cables are further reduced, and the service life of the cables is prolonged. And the stability and the accuracy of the sliding frame in the moving process are ensured through the limiting sliding connection of the sliding column and the limiting groove, the electrical test device has the advantages of dust prevention, cable management, flexible adjustment, convenient operation, stable structure and the like, and the efficiency and the accuracy of an electrical test can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to an auxiliary junction box for electrical testing of a power transformer. Background Art

[0002] Electrical tests on power transformers are a series of important tests used to detect and evaluate transformer performance and safety. These tests are designed to ensure the stability and reliability of the transformer under normal operation and extreme conditions.

[0003] The junction box is a box where power distribution and power-consuming equipment are connected to external lines. The box is used for protection and is generally equipped with wiring terminals and terminal blocks inside. This is only used for wiring, or there are connection ends without terminals but with switch devices. This connection is detachable. There are also switch devices on the top and many terminal blocks on the bottom. The existing auxiliary junction box for electrical tests of power transformers has certain disadvantages. The connection is made through wires and terminal blocks. The terminal position in the existing auxiliary junction box for electrical tests is difficult to adjust. The distance between the terminals is short, which easily leads to different types of wires being intertwined inside the junction box. The cable crossing is complicated and inconvenient to reconnect.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The utility model aims to provide an auxiliary junction box for electrical testing of power transformers, so as to solve the problems that the terminal positions in the existing auxiliary junction box for electrical testing are difficult to adjust, the distance between the terminals is relatively close, which easily leads to different types of wires being intertwined inside the junction box, the cable crossing being complicated, and the reconnection being inconvenient.

[0006] The purpose of the utility model can be achieved by the following technical solutions: an auxiliary junction box for electrical testing of a power transformer, comprising a box body, a switch door is hinged on the surface of the box body, a collection pipe is penetrated and fixedly connected to the top of the box body, and an adjustment mechanism is arranged on the inner wall of the box body;

[0007] The adjustment mechanism includes a plurality of sliding frames connected in horizontal sliding directions, the surface of the sliding frames is provided with connection terminals for test connection, a mounting plate close to the sliding frames is vertically slidably connected in the box body, a plurality of limit grooves are provided on the surface of the mounting plate, and the plurality of limit grooves are vertically radially distributed along the surface of the mounting plate, the back of the sliding frames are fixedly connected with sliding columns, the sliding columns are located in the corresponding limit grooves and are limitedly slidably connected thereto.

[0008] Preferably, two horizontally arranged limiting rods are fixedly connected to the inner wall of the box, and the two limiting rods pass through a plurality of sliding frames and are connected to the sliding frames in a limiting sliding manner.

[0009] Preferably, two symmetrically arranged sliding bars are fixedly connected to the back of the mounting plate, and two limit bars located on both sides of the corresponding sliding bars are fixedly connected to the box body, and the sliding bar is vertically limitedly slidably connected to the corresponding two limit bars.

[0010] Preferably, a mounting bracket is fixedly connected to the inner wall of the box, a circuit breaker is fixedly mounted on the mounting bracket, and a connecting piece detachably connected to the mounting bracket is fixedly connected to the back of the circuit breaker.

[0011] Preferably, heat dissipation openings are provided on both sides of the box body, and filters are inlaid on the inner walls of the heat dissipation openings.

[0012] Preferably, two connecting strips are fixedly connected to the inner wall of the box body, the two connecting strips are penetrated and connected with screws for fixed axis rotation, and the back side of the mounting plate is fixedly connected with a connecting block, and the screw penetrates the connecting block and is screwed thereto.

[0013] Beneficial effects of the utility model:

[0014] (1) The utility model uses an adjustment mechanism to adjust the distance between the connection terminals as needed, so that the box can adapt to the connection of wires of different specifications and quantities, thereby improving the flexibility of use. By adjusting the distance between the connection terminals, the clutter between the wires can be avoided, and the crossing and entanglement of the cables can be further reduced, which is convenient for distinguishing and connecting the connected wires. The limited sliding connection between the sliding column and the limit groove ensures the stability and accuracy of the sliding frame during the movement. It has the advantages of dust prevention, cable management, flexible adjustment, convenient operation and stable structure, and can significantly improve the efficiency and accuracy of electrical tests.

[0015] (2) By setting the screw rod, the distance that the mounting plate moves in the vertical direction can be accurately controlled, thereby improving the adjustment accuracy of the distance between adjacent sliding frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 The utility model has an overall structure of three-dimensional Figure 1 ;

[0018] Figure 2 The utility model has an overall structure of three-dimensional Figure 2 ;

[0019] Figure 3 This is a front view structural schematic diagram of the utility model;

[0020] Figure 4 This is a schematic diagram of the mounting plate structure of the utility model Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the mounting plate structure of the utility model Figure 2 .

[0022] Legend: 1. Box; 2. Switch door; 3. Wire collection tube; 4. Sliding frame; 5. Limit rod; 6. Mounting plate; 7. Connecting terminal; 8. Heat dissipation port; 9. Limit groove; 10. Screw; 11. Connecting strip; 12. Mounting frame; 13. Connecting piece; 14. Circuit breaker; 15. Limit strip; 16. Sliding bar; 17. Connecting block; 18. Sliding column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0024] Embodiment 1:

[0025] This embodiment is used to solve the problem that the terminal positions in the existing electrical test auxiliary junction box are difficult to adjust, the distance between the terminals is close, which easily leads to different types of wires being intertwined inside the junction box, the cables are poor and complicated, and it is inconvenient to reconnect.

[0026] See also Figure 1 - Figure 5 As shown, this embodiment is an auxiliary junction box for electrical testing of a power transformer, comprising a box body 1, a switch door 2 is hingedly connected to the surface of the box body 1, and the switch door 2 is provided to facilitate the sealing of the box body 1 to prevent dust from entering the box body 1 and causing pollution to the box body 1. A collection tube 3 is penetrated and fixedly connected to the top of the box body 1. By providing the collection tube 3, the crossing and entanglement of wires and cables can be reduced, and the difficulty and cost of installation can be reduced. An adjustment mechanism is provided on the inner wall of the box body 1;

[0027] The adjusting mechanism comprises a plurality of sliding racks 4 connected in a horizontal sliding direction, and a connection terminal 7 for test connection is arranged on the surface of the sliding rack 4. The plurality of sliding racks 4 slide away from each other in the horizontal direction, so that the plurality of connection terminals 7 can be moved away from each other. A mounting plate 6 close to the sliding rack 4 is vertically slidably connected in the box body 1, and a plurality of limiting grooves 9 are provided on the surface of the mounting plate 6. The plurality of limiting grooves 9 are vertically radially spread out along the surface of the mounting plate 6. The back of the sliding rack 4 is fixedly connected with a sliding column 18. When the mounting plate 6 moves vertically upward, the corresponding sliding column 18 can slide in the limiting groove 9, and the sliding racks 4 are close to each other. When the mounting plate 6 moves vertically downward, the sliding racks 4 are moved away from each other. The sliding racks 4 are close to or away from each other in the horizontal direction, so as to adjust the distance between the connection terminals 7, avoid the subsequent confusion of the wires connected to the connection terminals 7, further reduce the crossing and entanglement of the wires and cables, facilitate the distinction of the connected wires, and facilitate the connection of the wires with the corresponding connection terminals 7. The sliding column 18 is located in the corresponding limiting groove 9 and is connected with the limiting sliding.

[0028] Two horizontally arranged limit rods 5 are fixedly connected to the inner wall of the box body 1. The two limit rods 5 penetrate multiple sliding frames 4 and are connected to the sliding frames 4 in a limited sliding manner. The two limit rods 5 limit the sliding frames 4 in the horizontal direction so that they can slide stably in the horizontal direction.

[0029] Two symmetrically arranged sliding bars 16 are fixedly connected to the back of the mounting plate 6, and two limit bars 15 located on both sides of the corresponding sliding bars 16 are fixedly connected to the box body 1. The two sliding bars 16 are attached to the limit bars 15 and the limit bars 15 are limited in the vertical direction. The sliding bar 16 is vertically limited and slidably connected to the corresponding two limit bars 15, so that the mounting plate 6 fixedly connected to the limit bars 15 can be stably moved in the vertical direction.

[0030] A mounting frame 12 is fixedly connected to the inner wall of the box body 1, and a circuit breaker 14 is fixedly installed on the mounting frame 12. A connecting piece 13 detachably connected to the mounting frame 12 is fixedly connected to the back of the circuit breaker 14. A mounting groove for bolts to pass through is provided on the surface of the mounting frame 12, and the mounting frame 12 is detachably connected by bolts; heat dissipation ports 8 are provided on both sides of the box body 1, and heat is dissipated under the action of the heat dissipation ports 8 to prevent the temperature in the box body 1 from being too high. The inner wall of the heat dissipation port 8 is inlaid with a gauze, which further prevents dust from entering the box body 1.

[0031] Embodiment 2:

[0032] This embodiment is used to solve the problem that it is difficult to accurately control the distance between the connection terminals 7 .

[0033] See also Figure 1 , Figure 5As shown, in an auxiliary junction box for electrical testing of a power transformer of the present embodiment, two connecting bars 11 are fixedly connected to the inner wall of the box body 1, and the two connecting bars 11 are symmetrically arranged in the vertical direction. The two connecting bars 11 are penetrated and connected with a screw rod 10 for fixed axis rotation. A connecting block 17 is fixedly connected to the back of the mounting plate 6, and the screw rod 10 penetrates the connecting block 17 and is screwed thereto. A handle is fixedly connected to the bottom end of the screw rod 10, and the screw rod 10 is rotated by rotating the handle to rotate the screw rod 10, so that the vertically limited mounting plate 6 can be moved in the vertical direction as the screw rod 10 rotates. By setting the screw rod 10, the distance that the mounting plate 6 moves in the vertical direction can be accurately controlled, thereby improving the precise adjustment of the distance between adjacent sliding frames 4.

[0034] Combining Embodiment 1 with Embodiment 2

[0035] Through the adjustment mechanism, the distance between the connecting terminals 7 is adjusted as needed, so that the box 1 can adapt to the connection of wires of different specifications and quantities, thereby improving the flexibility of use. By adjusting the distance between the connecting terminals 7, the clutter between the wires can also be avoided, further reducing the crossing and entanglement of the cables, and facilitating the distinction and connection of the connected wires. The limited sliding connection between the sliding column 18 and the limiting groove 9 ensures the stability and accuracy of the sliding frame 4 during the movement. By setting the screw 10, the distance that the mounting plate 6 moves in the vertical direction can be accurately controlled, thereby improving the precise adjustment of the distance between adjacent sliding frames 4. This power transformer electrical test auxiliary junction box has the advantages of dustproof, cable management, flexible adjustment, convenient operation and stable structure, can significantly improve the efficiency and accuracy of electrical tests, and is a very practical power transformer electrical test auxiliary equipment.

[0036] like Figure 1 - Figure 5 As shown, the working process and principle of the utility model are as follows:

[0037] Step 1: Check the test transformer, measure the rated output voltage of the winding, and ensure that it matches the auxiliary junction box. Open the switch door 2 on the box 1, and correctly connect the line between the test transformer and the auxiliary junction box according to the wiring diagram, and connect the line to the corresponding terminal on the sliding frame 4;

[0038] Step 2, turn the handle to rotate the screw 10, and the mounting plate 6 fixedly connected to the connecting block 17 moves in the vertical direction as the screw 10 rotates. A plurality of limit grooves 9 are vertically radially spread out along the surface of the mounting plate 6, and the back of the sliding frame 4 is fixedly connected to the sliding column 18. When the mounting plate 6 moves vertically upward, the corresponding sliding column 18 can slide in the limit groove 9, and the sliding frames 4 are close to each other. When the mounting plate 6 moves vertically downward, the sliding frames 4 move away from each other, thereby adjusting the distance between the connecting terminals 7 on the sliding frame 4, avoiding the clutter of the wires connected to the connecting terminals 7, and further reducing the crossing and entanglement of wires and cables.

[0039] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An auxiliary junction box for electrical testing of a power transformer, comprising a box body (1), characterized in that: The surface of the box (1) is hinged with a switch door (2), the top of the box (1) is penetrated and fixedly connected with a collection pipe (3), and the inner wall of the box (1) is provided with an adjustment mechanism; The adjustment mechanism comprises a plurality of sliding frames (4) connected in a horizontal sliding direction, the surface of the sliding frames (4) being provided with connection terminals (7) for test connection, a mounting plate (6) close to the sliding frames (4) being vertically slidably connected in the box body (1), a plurality of limiting grooves (9) being provided on the surface of the mounting plate (6), the plurality of limiting grooves (9) being vertically radially distributed along the surface of the mounting plate (6), the back of the sliding frames (4) being fixedly connected with sliding columns (18), the sliding columns (18) being located in corresponding limiting grooves (9) and being limitedly slidably connected thereto.

2. The auxiliary junction box for electrical testing of a power transformer according to claim 1, characterized in that: Two horizontally arranged limiting rods (5) are fixedly connected to the inner wall of the box body (1); the two limiting rods (5) penetrate through a plurality of sliding frames (4) and are connected to the sliding frames (4) in a limiting sliding manner.

3. The auxiliary junction box for electrical testing of a power transformer according to claim 2, characterized in that: The back of the mounting plate (6) is fixedly connected to two symmetrically arranged sliding bars (16), and the box body (1) is fixedly connected to two limit bars (15) located on both sides of the corresponding sliding bars (16). The sliding bars (16) are vertically limitedly slidably connected to the corresponding two limit bars (15).

4. The auxiliary junction box for electrical testing of a power transformer according to claim 1, characterized in that: The inner wall of the box body (1) is fixedly connected to a mounting frame (12), a circuit breaker (14) is fixedly mounted on the mounting frame (12), and a connecting piece (13) detachably connected to the mounting frame (12) is fixedly connected to the back of the circuit breaker (14).

5. The auxiliary junction box for electrical testing of a power transformer according to claim 1, characterized in that: Heat dissipation openings (8) are provided on both sides of the box body (1), and the inner walls of the heat dissipation openings (8) are inlaid with filter screens.

6. The auxiliary junction box for electrical testing of a power transformer according to claim 1, characterized in that: The inner wall of the box body (1) is fixedly connected to two connecting bars (11), the two connecting bars (11) are penetrated and connected to a screw rod (10) for fixed axis rotation, the back of the mounting plate (6) is fixedly connected to a connecting block (17), and the screw rod (10) penetrates the connecting block (17) and is screwed thereto.

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