Silver contact piece of temperature control switch of transformer

Abstract

The utility model relates to the field of transformer temperature control switches, and discloses a transformer temperature control switch silver contact, which comprises a temperature control box and a transformer groove arranged in the temperature control box, one side of the transformer groove is provided with a heat storage groove, one side of the heat storage groove is provided with a switch groove, the switch groove is internally provided with a silver contact butt joint assembly, and the silver contact butt joint assembly is connected with the transformer groove. An automatic rotating assembly is arranged on one side of the silver contact piece butt joint assembly; heat in a transformer groove is transmitted into a heat storage groove through a heat conduction rod, a thermosensitive piece on a heat conduction plate is heated and expanded to push a sliding rod to drive a driving spring to push silver contact pieces, silver contacts on the two silver contact pieces are in contact and powered on, and therefore cooling equipment is started for cooling; after the novel silver contact piece is electrified, the rotating motor and the electromagnetic valve can be started to be embedded into the electromagnetic valve embedding groove, so that acting force is applied to the silver contact piece connected with the sawtooth plate to enhance contact force, and the problem that cooling equipment is damaged due to the fact that a switch is continuously turned on and turned off when the temperature repeatedly changes at one node is solved.

Description

Technical Field

[0001] The utility model relates to the field of transformer temperature control switches, in particular to a silver contact piece of a transformer temperature control switch. Background Art

[0002] Transformer is an electrical device used to change the size of AC voltage. It changes a certain level of AC voltage into another level of AC voltage with the same frequency based on the principle of electromagnetic induction to meet the needs of different loads. It can also be used to change current, change impedance and generate pulses. It is mainly used in power transmission and distribution systems, and is also widely used in the fields of electrical control, electronic technology, testing technology and welding technology. When the transformer is working, it will generate a certain amount of heat. In order to ensure the stable operation of the transformer, it is necessary to cool the transformer under high temperature. At present, transformer cooling is mostly carried out by air cooling, water cooling and other methods. These cooling methods generally monitor the temperature of the transformer through sensors. After the temperature reaches the requirement, information is sent to turn on or off the cooling equipment. Since transformers are generally installed outdoors, and sensors are sensitive components and transmit information through electrical signals, this makes the entire switch system too complicated, and it also needs to withstand various harsh environments. This leads to the problem that the temperature detected in the end often changes greatly in a short period of time when used for a long time, resulting in frequent opening and closing of the transformer cooling equipment, which is easy to damage it.

[0003] Therefore, a transformer temperature control switch silver contact is needed to solve this problem. Utility Model Content

[0004] A transformer temperature control switch silver contact comprises a temperature control box and a transformer groove arranged in the temperature control box, a heat storage groove is arranged on one side of the transformer groove, a switch groove is arranged on one side of the heat storage groove, a silver contact docking assembly is arranged inside the switch groove, and an autonomous rotating assembly is arranged on one side of the silver contact docking assembly.

[0005] Preferably, a heat insulation board is provided in the temperature control box, and the heat insulation board is arranged between the heat storage tank and the transformer groove. An isolation plate is provided on one side of the heat insulation board, and a sliding rod is embedded in the isolation plate.

[0006] Preferably, the heat storage tank is provided with a heat conducting plate, one side of the heat conducting plate is connected to a heat conducting rod, and the heat conducting rod is embedded in the heat insulating plate.

[0007] Preferably, a thermal sensitive sheet is embedded in the other side of the heat conducting plate, a sliding rod is provided on one side of the thermal sensitive sheet, and the other end of the sliding rod is arranged in the switch slot.

[0008] Preferably, the silver contact piece docking assembly comprises two silver contact pieces, each of which is provided with a silver contact point, and one side of one of the silver contact pieces is connected to a plurality of active springs, and the active springs are connected to a slide rod.

[0009] Preferably, a silver contact slide rod is connected to the side of the other silver contact piece, the other end of the silver contact slide rod is connected to a passive spring, the silver contact slide rod is embedded in a slide groove, and the slide groove is fixed on the temperature control box.

[0010] Preferably, the autonomous rotating component comprises a serrated plate, the serrated plate is connected to one side of the silver contact piece, the serrated plate is engaged with a gear, and the gear is provided with a rotating rod slide groove.

[0011] Preferably, the gear is provided with a solenoid valve engaging groove, the rotating rod sliding groove engages with the rotating rod, the rotating rod is installed on a rotating motor, the rotating motor is provided with a solenoid valve, and the solenoid valve engages with the solenoid valve engaging groove.

[0012] Beneficial effects: The new type transfers the heat in the transformer groove to the heat storage tank through the heat conducting rod. The thermistor on the heat conducting plate expands due to heat, pushing the slide rod to drive the active spring to push the silver contact piece, so that the silver contacts on the two silver contact pieces are in contact and energized, thereby starting the cooling equipment to cool down; after the new silver contact piece is energized, it will start the rotating motor and the solenoid valve to fit into the solenoid valve fitting groove, thereby giving the silver contact piece connected to the serrated plate a force to strengthen the contact force, avoiding the problem of damage to the cooling equipment caused by the continuous opening and closing of the switch when the temperature changes repeatedly at a node. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a partial structural diagram of the silver contact patch docking assembly of the utility model;

[0016] Figure 3 This is a partial structural diagram of the autonomous rotating component and the silver contact piece docking component of the utility model.

[0017] Legend:

[0018] 1. Temperature control box; 2. Transformer groove; 3. Heat storage groove; 4. Switch groove; 5. Silver contact piece docking assembly; 6. Autonomous rotation assembly; 11. Heat insulation board; 12. Isolation board; 13. Slide rod; 31. Heat conduction plate; 32. Heat conduction rod; 33. Thermistor; 51. Silver contact piece; 52. Active spring; 53. Silver contact piece slide rod; 54. Passive spring; 55. Slide groove; 56. Silver contact; 61. Sawtooth plate; 62. Gear; 63. Rotating rod slide groove; 64. Solenoid valve fitting groove; 631. Rotating rod; 65. Rotating motor; 66. Solenoid valve. DETAILED DESCRIPTION

[0019] The utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. 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.

[0020] It should be noted that if the utility model embodiments involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0022] Please refer to the instruction manual Figure 1-Figure 3 A transformer temperature control switch silver contact comprises a temperature control box 1 and a transformer groove 2 arranged in the temperature control box 1, a heat storage tank 3 is arranged on one side of the transformer groove 2, a switch groove 4 is arranged on one side of the heat storage tank 3, a silver contact docking assembly 5 is arranged inside the switch groove 4, and an autonomous rotating assembly 6 is arranged on one side of the silver contact docking assembly 5.

[0023] Furthermore, a heat insulation board 11 is provided in the temperature control box 1 , and the heat insulation board 11 is arranged between the heat storage tank 3 and the transformer groove 2 . An isolation board 12 is provided on one side of the heat insulation board 11 , and a sliding rod 13 is embedded in the isolation board 12 .

[0024] Furthermore, the heat storage tank 3 is provided with a heat conducting plate 31 , one side of the heat conducting plate 31 is connected to a heat conducting rod 32 , the heat conducting rod 32 is embedded in the heat insulation plate 11 , and the heat conducting rod 32 can conduct the heat generated by the transformer in the transformer groove 2 to the heat storage tank 3 .

[0025] Furthermore, a thermistor 33 is embedded on the other side of the heat conducting plate 31 , a slide bar 13 is provided on one side of the thermistor 33 , and the other end of the slide bar 13 is provided in the switch slot 4 . The thermistor 33 expands and pushes the slide bar 13 after receiving the heat from the heat conducting plate 31 .

[0026] Furthermore, the silver contact piece docking assembly 5 includes two silver contact pieces 51 , each of which is provided with a silver contact point 56 . One side of one of the silver contact pieces 51 is connected to a plurality of active springs 52 , and the active springs 52 are connected to the slide bar 13 .

[0027] Furthermore, a silver contact slide rod 53 is connected to the side of the other silver contact piece 51, and the other end of the silver contact slide rod 53 is connected to a passive spring 54. The silver contact slide rod 53 is embedded in a slide groove 55, and the slide groove 55 is fixed on the temperature control box 1. The slide rod 13 will push one of the silver contact pieces 51 to move through the active spring 52, so that the silver contacts 56 of the two silver contact pieces 51 are connected and energized.

[0028] Furthermore, the autonomous rotating component 6 includes a serrated plate 61, the serrated plate 61 is connected to one side of the silver contact piece 51, the serrated plate 61 is engaged with a gear 62, and the gear 62 is provided with a rotating rod slot 63.

[0029] Furthermore, the gear 62 is provided with a solenoid valve engaging groove 64, the rotating rod slide groove 63 is engaged with the rotating rod 631, and the rotating rod 631 is installed on the rotating motor 65. The rotating motor 65 is provided with a solenoid valve 66, and the solenoid valve 66 is engaged with the solenoid valve engaging groove 64. After the silver contact piece 51 is energized, the rotating motor 65 will be started and the solenoid valve 66 will be engaged with the solenoid valve engaging groove 64. The rotating motor 65 drives the gear 62 to rotate, thereby applying a force to the silver contact piece 51 connected to the serrated plate 61 to strengthen the contact force. When the temperature drops and the power is cut off, the solenoid valve 66 moves out of the solenoid valve engaging groove 64, and the passive spring 54 will pull the silver contact piece 51 serrated plate 61 to cause the rotating rod 631 on the rotating motor 65 to rotate in the opposite direction in the rotating rod slide groove 63 to achieve the purpose of leaving a power-on buffer zone between the silver contact pieces 51.

[0030] First, the operation of the transformer will generate heat in the transformer groove 2. The heat-conducting rod 32 conducts the heat generated by the transformer in the transformer groove 2 to the heat storage tank 3. The heat-conducting rod 32 heats the heat-conducting plate 31. The thermistor 33 expands and pushes the slide bar 13 after receiving the heat from the heat-conducting plate 31. The slide bar 13 pushes one of the silver contact sheets 51 to move through the active spring 52, so that the silver contacts 52 of the two silver contact sheets 51 are connected and energized. After the silver contact sheets 51 are energized, the rotating motor 65 is started and the solenoid valve 66 is engaged in the solenoid valve engagement groove 64, rotating. The motor 65 drives the gear 62 to rotate, thereby exerting a force on the silver contact piece 51 connected to the serrated plate 61 to strengthen the contact force. When the temperature drops and the power is cut off, the solenoid valve 66 moves out of the solenoid valve fitting groove 64, and the passive spring 54 pulls the silver contact piece 51 and the serrated plate 61, so that the rotating rod 631 on the rotating motor 65 rotates in the opposite direction in the rotating rod slide groove 63 to leave a power-on buffer zone between the silver contact pieces 51, thereby avoiding repeated changes in temperature at a node causing continuous contact and separation between the silver contacts, causing the circuit to be continuously powered on and off, and causing damage to the cooling equipment.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A transformer temperature control switch silver contact piece, comprising a temperature control box (1) and a transformer groove (2) arranged in the temperature control box (1), characterized in that: A heat storage groove (3) is provided on one side of the transformer groove (2), a switch groove (4) is provided on one side of the heat storage groove (3), a silver contact piece docking assembly (5) is provided inside the switch groove (4), and an autonomous rotating assembly (6) is provided on one side of the silver contact piece docking assembly (5).

2. The silver contact piece of a transformer temperature control switch according to claim 1, characterized in that: A heat insulation board (11) is provided in the temperature control box (1), and the heat insulation board (11) is provided between the heat storage tank (3) and the transformer groove (2). An isolation board (12) is provided on one side of the heat insulation board (11), and a sliding rod (13) is embedded in the isolation board (12).

3. The silver contact piece of a transformer temperature control switch according to claim 1, characterized in that: The heat storage tank (3) is provided with a heat conducting plate (31), one side of the heat conducting plate (31) is connected to a heat conducting rod (32), and the heat conducting rod (32) is embedded in the heat insulation plate (11).

4. The silver contact piece of a transformer temperature control switch according to claim 3, characterized in that: A thermal sensitive sheet (33) is embedded in the other side of the heat conducting plate (31), a sliding rod (13) is provided on one side of the thermal sensitive sheet (33), and the other end of the sliding rod (13) is arranged in the switch slot (4).

5. The silver contact piece of a transformer temperature control switch according to claim 1, characterized in that: The silver contact piece docking assembly (5) comprises two silver contact pieces (51), each of which is provided with a silver contact point (56), one side of one of the silver contact pieces (51) is connected to a plurality of active springs (52), and the active springs (52) are connected to a slide bar (13).

6. The silver contact piece of a transformer temperature control switch according to claim 5, characterized in that: The side of the other silver contact piece (51) is connected to a silver contact piece slide rod (53), the other end of the silver contact piece slide rod (53) is connected to a passive spring (54), the silver contact piece slide rod (53) is embedded in a slide groove (55), and the slide groove (55) is fixed on the temperature control box (1).

7. The silver contact piece of a transformer temperature control switch according to claim 1, characterized in that: The self-rotating component (6) comprises a sawtooth plate (61), the sawtooth plate (61) is connected to one side of the silver contact piece (51), the sawtooth plate (61) is engaged with a gear (62), and the gear (62) is provided with a rotating rod sliding groove (63).

8. The silver contact piece of a transformer temperature control switch according to claim 7, characterized in that: The gear (62) is provided with an electromagnetic valve engaging groove (64), the rotating rod sliding groove (63) is engaged with a rotating rod (631), the rotating rod (631) is installed on a rotating motor (65), the rotating motor (65) is provided with an electromagnetic valve (66), and the electromagnetic valve (66) is engaged with the electromagnetic valve engaging groove (64).

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