Transformer center point grounding copper bar structure

Abstract

The utility model relates to the technical field of transformers, and discloses a transformer center point grounding copper bar structure which comprises a main body mechanism and an auxiliary mechanism, the auxiliary mechanism is located below the main body mechanism, and the main body mechanism comprises a connecting bottom plate, a transformer grounding copper bar and a positioning pressing plate. The transformer grounding copper bar is located in the connecting bottom plate, the positioning pressing plate is movably installed at the upper end of the connecting bottom plate, the main body mechanism further comprises an arc-shaped connecting block, a connecting buckle and a connecting clamping groove, and the arc-shaped connecting block is fixedly installed at the left end of the lower end of the positioning pressing plate. According to the transformer center point grounding copper bar structure, by installing the main body mechanism, when grounding connection operation of a transformer center point copper bar is carried out through the structure, a worker can rapidly assemble the copper bar through operation, auxiliary use of other tools is not needed, the installation time of the worker on the copper bar is shortened, and the working efficiency is improved. The connection efficiency of the copper bars is improved, and the use convenience of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer center point grounding copper bar structure. Background Art

[0002] When the transformer is operating or testing, under the action of the electric field, a floating potential will be generated on the center core and other metal structural parts. When the potential difference between the two points reaches a level that can break through the insulation between them, local discharge will occur. If this continues for a long time, the transformer insulation will be damaged, leading to accidents. Therefore, the existing technology uses copper busbar grounding for protection.

[0003] The existing patent document of technical disclosure number CN213242202U provides a transformer core grounding copper bar fixing device. Since the utility model adopts a pressing plate to press the transformer core grounding copper bar onto the insulator, it is not necessary to provide a mounting hole for connecting with the insulator on the copper bar, thereby ensuring the effective cross-sectional area of ​​the copper bar. In addition, since there is no fixed connection relationship between the copper bar and the insulator in the utility model, when the copper bar expands and contracts due to heat, the thermal expansion and contraction stress generated will not act on the insulator, thereby protecting the insulator from being pulled off.

[0004] However, when the existing transformer copper busbar grounding structure is in use, the bolt connection method makes the installation of the copper busbar more complicated, thereby increasing the assembly time of the copper busbar and reducing the work efficiency in the copper busbar grounding operation, and the practicality and convenience are poor. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model aims to provide a transformer center point grounding copper bar structure to solve the problem that the installation of the copper bar is complicated due to the bolt connection method when the existing transformer copper bar grounding structure is used.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transformer center point grounding copper bar structure, comprising a main mechanism and an auxiliary mechanism, wherein the auxiliary mechanism is located below the main mechanism, and the main mechanism comprises a connecting bottom plate, a transformer grounding copper bar and a positioning pressure plate, wherein the transformer grounding copper bar is located inside the connecting bottom plate, and the positioning pressure plate is movably installed at the upper end of the connecting bottom plate;

[0009] The main body mechanism also includes an arc-shaped connecting block, a connecting buckle and a connecting slot. The arc-shaped connecting block is fixedly mounted on the left end of the lower end of the positioning pressure plate, the connecting buckle is movably mounted on the left end of the arc-shaped connecting block, the connecting slot is fixedly arranged on the left end of the connecting base plate, and the connecting slot is movably connected to the connecting buckle.

[0010] Preferably, the auxiliary mechanism includes a connecting insulator and a receiving groove, the connecting insulator is fixedly mounted on the lower end of the connecting base plate, the receiving groove is fixedly arranged in the middle of the upper end of the connecting base plate, and the transformer grounding copper busbar is located inside the receiving groove.

[0011] Preferably, the auxiliary mechanism further comprises a positioning groove, wherein the positioning groove is fixedly arranged at the upper end of the connecting base plate, and the positioning groove is evenly distributed at the upper end of the connecting base plate.

[0012] Preferably, the auxiliary mechanism further comprises a positioning column, wherein the positioning column is fixedly mounted on the lower end of the positioning pressure plate, and the positioning column corresponds to the positioning groove.

[0013] Preferably, the auxiliary mechanism further comprises an arc-shaped connecting groove, which is fixedly arranged at the left end of the upper end of the connecting bottom plate, and corresponds to the arc-shaped connecting block.

[0014] Preferably, the auxiliary mechanism further comprises a setting slot and a connecting spring, wherein the setting slot is fixedly arranged at the left end of the connecting base plate, the connecting slot is located inside the setting slot, and the connecting spring is fixedly installed at the upper end inside the setting slot.

[0015] Preferably, the auxiliary mechanism further comprises a push plate, the push plate is fixedly mounted on the lower end of the connecting spring, the push plate is located at the front end of the connecting slot, and the push plate is slidably connected to the setting slot.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The transformer center point grounding copper bar structure, through the installation of the main body mechanism, realizes that when the structure is performing the grounding connection operation of the transformer center point copper bar, the staff can quickly assemble the copper bar through operation without the auxiliary use of other tools, which reduces the installation time of the copper bar by the staff, improves the connection efficiency of the copper bar, and improves the convenience of using the structure;

[0018] 2. The transformer center point grounding copper busbar structure is realized by installing auxiliary mechanisms. When the structure is in use, the slot design is convenient for the staff to quickly disassemble the copper busbar and perform maintenance operations on it. The design of the push plate provides a protective effect for the connecting slot to ensure the stability of the connection between the positioning pressure plate and the connecting bottom plate, thereby improving the practicality and protection of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the main mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the auxiliary mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the enlarged structure of the local details of the groove of the utility model.

[0023] In the figure: 1. Main mechanism; 101. Connecting bottom plate; 102. Transformer grounding copper bar; 103. Positioning pressure plate; 104. Arc-shaped connecting block; 105. Connecting buckle; 106. Connecting slot; 2. Auxiliary mechanism; 201. Connecting insulator; 202. Accommodating slot; 203. Positioning slot; 204. Positioning column; 205. Arc-shaped connecting slot; 206. Setting slot; 207. Connecting spring; 208. Pushing plate. DETAILED DESCRIPTION

[0024] 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 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.

[0025] See also Figure 1 - Figure 4 The utility model provides a technical solution: a transformer center point grounding copper bar structure, including a main mechanism 1 and an auxiliary mechanism 2, the auxiliary mechanism 2 is located below the main mechanism 1, the main mechanism 1 includes a connecting bottom plate 101, a transformer grounding copper bar 102 and a positioning pressure plate 103, the transformer grounding copper bar 102 is located inside the connecting bottom plate 101, and the positioning pressure plate 103 is movably installed on the upper end of the connecting bottom plate 101;

[0026] The main body mechanism 1 also includes an arc-shaped connecting block 104, a connecting buckle 105 and a connecting slot 106. The arc-shaped connecting block 104 is fixedly mounted on the left end of the lower end of the positioning pressure plate 103, and the connecting buckle 105 is movably mounted on the left end of the arc-shaped connecting block 104. The connecting slot 106 is fixedly arranged on the left end of the connecting base plate 101. The connecting slot 106 is movably connected to the connecting buckle 105. The staff places the positioning pressure plate 103 above the connecting base plate 101, and then presses the connecting buckle 105 to retract it into the arc-shaped connecting block 104, so that the arc can be positioned. The shaped connecting block 104 is inserted, and after the positioning pressure plate 103 is fully connected with the connecting base plate 101, the connecting buckle 105 corresponds to the connecting slot 106, and the connecting buckle 105 is reset to connect with the connecting slot 106 to realize the connection of the positioning pressure plate 103 and complete the assembly of the transformer grounding copper bus 102. The staff presses the connecting buckle 105 to separate it from the connecting slot 106, and then pulls the positioning pressure plate 103 to separate it from the connecting base plate 101, and then the transformer grounding copper bus 102 can be inspected and maintained.

[0027] The auxiliary mechanism 2 includes a connecting insulator 201 and a receiving groove 202. The connecting insulator 201 is fixedly installed at the lower end of the connecting base plate 101. The receiving groove 202 is fixedly arranged in the middle of the upper end of the connecting base plate 101. The transformer grounding copper bar 102 is located inside the receiving groove 202. The auxiliary mechanism 2 also includes a positioning groove 203. The positioning groove 203 is fixedly arranged at the upper end of the connecting base plate 101. The positioning grooves 203 are evenly distributed at the upper end of the connecting base plate 101. The auxiliary mechanism 2 also includes a positioning column 204. The positioning column 204 is fixedly arranged at the upper end of the connecting base plate 101. The column 204 is fixedly mounted on the lower end of the positioning plate 103, and the positioning column 204 corresponds to the positioning groove 203. The auxiliary mechanism 2 also includes an arc-shaped connecting groove 205, which is fixedly arranged at the left end of the upper end of the connecting base plate 101, and the arc-shaped connecting groove 205 corresponds to the arc-shaped connecting block 104. The auxiliary mechanism 2 also includes a setting groove 206 and a connecting spring 207. The setting groove 206 is fixedly arranged at the left end of the connecting base plate 101, and the connecting card slot 106 is located inside the setting groove 206. The connecting spring 207 is fixedly installed at the upper end inside the setting groove 206. The auxiliary mechanism 2 also includes a pushing plate 208, which is fixedly installed at the lower end of the connecting spring 207. The pushing plate 208 is located at the front end of the connecting slot 106. The pushing plate 208 is slidably connected to the setting slot 206. When the structure is used to perform grounding operations at the center point of the transformer, the staff connects the connecting base plate 101 with the connecting insulator 201, and then places the transformer grounding copper bus 102 into the accommodating slot 202 on the connecting base plate 101. The staff places the positioning pressure plate 103 above the connecting base plate 101, and makes the arc-shaped connecting block 104 correspond to the arc-shaped connecting slot 205, and the positioning column 204 corresponds to the positioning slot 203. The staff connects the positioning column 204 with the positioning slot 203 to achieve the connection of the positioning pressure plate 103 and complete the assembly of the transformer grounding copper bus 102. The staff pushes the pushing plate 208 to compress the connecting spring 207, so that the connecting slot 106 is exposed.

[0028] Working principle: When using this structure to perform grounding work at the center point of the transformer, the staff connects the connecting base plate 101 with the connecting insulator 201, and then places the transformer grounding copper bar 102 into the receiving groove 202 on the connecting base plate 101. The staff places the positioning pressure plate 103 above the connecting base plate 101, and makes the arc-shaped connecting block 104 correspond to the arc-shaped connecting groove 205, and the positioning column 204 corresponds to the positioning groove 203. The staff presses the connecting buckle 105 to retract it into the arc-shaped connecting block 104, and then inserts the arc-shaped connecting block 104 to connect it to the arc-shaped connecting groove 205, and the positioning column 204 is connected to the positioning groove 203. After the positioning pressure plate 103 is fully connected to the connecting base plate 101, the connecting buckle 105 corresponds to the connecting slot 106, and the connecting buckle 105 is reset to connect with the connecting slot 106 to realize the connection of the positioning pressure plate 103 and complete the assembly of the transformer grounding copper bus 102. When it is necessary to perform inspection and maintenance operations on the transformer grounding copper bus 102, the staff pushes the push plate 208 to compress the connecting spring 207. At this time, the connecting slot 106 is exposed. The staff presses the connecting buckle 105 to separate it from the connecting slot 106, and then pulls the positioning pressure plate 103 to separate it from the connecting base plate 101. The transformer grounding copper bus 102 can then be inspected and maintained.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A transformer center point grounding copper bar structure, comprising a main mechanism (1) and an auxiliary mechanism (2), characterized in that: The auxiliary mechanism (2) is located below the main mechanism (1); the main mechanism (1) comprises a connecting base plate (101), a transformer grounding copper bar (102) and a positioning pressure plate (103); the transformer grounding copper bar (102) is located inside the connecting base plate (101); and the positioning pressure plate (103) is movably mounted on the upper end of the connecting base plate (101); The main body mechanism (1) further comprises an arc-shaped connecting block (104), a connecting buckle (105) and a connecting slot (106); the arc-shaped connecting block (104) is fixedly mounted on the left end of the lower end of the positioning pressure plate (103); the connecting buckle (105) is movably mounted on the left end of the arc-shaped connecting block (104); the connecting slot (106) is fixedly arranged on the left end of the connecting bottom plate (101); and the connecting slot (106) is movably connected to the connecting buckle (105).

2. A transformer center point grounding copper bar structure according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a connecting insulator (201) and a receiving groove (202); the connecting insulator (201) is fixedly mounted on the lower end of the connecting base plate (101); the receiving groove (202) is fixedly arranged in the middle of the upper end of the connecting base plate (101); and the transformer grounding copper bar (102) is located inside the receiving groove (202).

3. A transformer center point grounding copper bar structure according to claim 2, characterized in that: The auxiliary mechanism (2) further comprises a positioning groove (203), wherein the positioning groove (203) is fixedly arranged at the upper end of the connecting base plate (101), and the positioning grooves (203) are evenly distributed at the upper end of the connecting base plate (101).

4. A transformer center point grounding copper bar structure according to claim 3, characterized in that: The auxiliary mechanism (2) further comprises a positioning column (204), wherein the positioning column (204) is fixedly mounted on the lower end of the positioning pressure plate (103), and the positioning column (204) corresponds to the positioning groove (203).

5. A transformer center point grounding copper bar structure according to claim 4, characterized in that: The auxiliary mechanism (2) further comprises an arc-shaped connecting groove (205), wherein the arc-shaped connecting groove (205) is fixedly arranged at the left end of the upper end of the connecting bottom plate (101), and the arc-shaped connecting groove (205) corresponds to the arc-shaped connecting block (104).

6. A transformer center point grounding copper bar structure according to claim 5, characterized in that: The auxiliary mechanism (2) further comprises a setting slot (206) and a connecting spring (207); the setting slot (206) is fixedly arranged at the left end of the connecting base plate (101); the connecting slot (106) is located inside the setting slot (206); and the connecting spring (207) is fixedly mounted at the upper end inside the setting slot (206).

7. A transformer center point grounding copper bar structure according to claim 6, characterized in that: The auxiliary mechanism (2) further comprises a push plate (208), wherein the push plate (208) is fixedly mounted on the lower end of the connection spring (207), the push plate (208) is located at the front end of the connection slot (106), and the push plate (208) is slidably connected to the setting slot (206).

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