Self-coupling voltage regulating transformer

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to a self-coupling voltage regulating transformer which comprises a base. A through groove is formed in the middle of the base; two protection boxes are mounted in the middle of the base; the two protection boxes are oppositely arranged; a first groove is formed in the middle of the protection box; the first groove is formed in a position close to the bottom of the protection box; the bottom of the protection box is slidably connected to the middle of the through groove. Two groups of sliding grooves are formed in the top of the base; a sliding block is slidably connected to the middle of the sliding groove. The top of the sliding block is fixedly connected to the middle of the first groove. Two first springs are fixedly connected to the end parts of the two bases; a second groove is formed in the top of the protection box; the second groove is formed in one side of the top of the protection box; the protection box can prevent dust and foreign matters from entering the self-coupling voltage regulating transformer in the using process, and corrosion and damage of the dust and the foreign matters to internal elements of the transformer can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and specifically relates to an autotransformer voltage regulator. Background Art

[0002] An autotransformer voltage regulator is a special transformer. The characteristic of an autotransformer voltage regulator is that the primary and secondary windings are on the same winding, and there is a direct electrical connection between them.

[0003] The autotransformer voltage regulator mainly works based on the principle of electromagnetic induction. When an AC power supply is connected to the primary winding, an alternating magnetic field will be generated in the iron core. This alternating magnetic field will induce an electromotive force in the secondary winding, thereby realizing voltage conversion. The autotransformer voltage regulator also utilizes the phenomenon of self-inductance, that is, a change in the current in the coil will generate a magnetic field around it, and then an electromotive force will be generated at both ends of the coil. By changing the turns ratio of the primary and secondary windings, the output voltage can be adjusted.

[0004] During the use of the autotransformer voltage regulator, dust and foreign objects in the surrounding environment will float through the air flow and enter the inside of the autotransformer voltage regulator, which easily causes dust and impurities to enter the inside of the transformer, resulting in corrosion and damage of components.

[0005] Therefore, the utility model provides an autotransformer voltage regulator. Content of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the utility model described in the utility model is an auto-coupling voltage-regulating transformer, comprising a base; a through slot is provided in the middle of the base; two protection boxes are installed in the middle of the base; the two protection boxes are arranged oppositely; a first groove is provided in the middle of the protection box; the first groove is provided near the bottom of the protection box; the bottom of the protection box is slidably connected to the middle of the through slot; two sets of slide grooves are provided on the top of the base; a slider is slidably connected to the middle of the slide groove; the top of the slider is fixedly connected to the middle of the first groove; two first springs are fixedly connected to the two ends of the base; a second groove is provided on the top of the protection box; the first Two grooves are opened on one side of the top of the protective box; two plug rods are fixedly connected to one side of one of the protective boxes; the two plug rods are fixed near the top of the protective box; the end of the plug rod is fixed with a first magnetic block; two holes are opened on the other side of the protective box corresponding to the position of the plug rod; the end of the hole is fixed with a second magnetic block; the first magnetic block and the second magnetic block attract each other when they are close to each other; through the above structure, the protective box can prevent dust and foreign matter from entering the interior of the autocoupling voltage-regulating transformer during use, can effectively reduce the corrosion and damage of dust and impurities to the internal components of the transformer, and can effectively reduce the damage to the transformer caused by external mechanical impact during use.

[0008] Preferably, a fixing groove is provided on the side wall of the protective box; a cooling fan is installed in the middle of the fixing groove; multiple groups of protective rods are fixedly connected to the side wall of the protective box; multiple groups of the protective rods are fixedly connected to the inside of the protective box; through the above structure, the cooling fan can accelerate the air flow inside and outside the protective box, and can effectively take away the heat generated inside the autotransformer, thereby effectively reducing the temperature inside the transformer.

[0009] Preferably, an elastic band is fixed to the top of the protective box; the other end of the elastic band is fixed to the side wall of the base; a plurality of sponge blocks are fixed to the middle of the elastic band; the sponge blocks increase the friction between the elastic band and the surface of the transformer through the above-mentioned structure, and the elastic band and the sponge blocks cooperate to fit tightly on both sides of the auto-coupling voltage-regulating transformer.

[0010] Preferably, a plurality of second springs are fixedly connected to the top of the base; a rubber pad is fixedly connected to the end of the second spring; and the second springs and the rubber pad support the transformer through the above structure, so that the transformer can be firmly placed inside the protective box, which can effectively reduce the displacement or tipping of the transformer inside the protective box.

[0011] Preferably, two groups of fixing rods are fixedly connected to the side walls of the second groove; two of the fixing rods form a group; the two fixing rods are arranged opposite to each other; elastic plates are fixedly connected to the ends of the fixing rods; the elastic plates are arranged in an arc shape; through the above-mentioned structure, the elastic plates can effectively fix the transformer circuit firmly on the top of the protective plate, and can effectively reduce the risk of shaking or falling off of the circuit due to vibration or external factors.

[0012] Preferably, a plurality of suction cups are installed at the bottom of the base; the suction cups are fixedly connected to the bottom of the base; through the above structure, the plurality of suction cups adsorb on a smooth surface, and can provide a more stable support for the protection box.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. For the autotransformer of the present utility model, the protection box can prevent dust and foreign objects from entering its interior during the use of the autotransformer, and can effectively reduce the corrosion and damage of the internal components of the transformer by dust and impurities.

[0015] 2. For the autotransformer of the present utility model, the heat dissipation fan can accelerate the air flow inside and outside the protection box, and can effectively take away the heat generated inside the autotransformer quickly, effectively reducing the temperature inside the transformer. Description of the Drawings

[0016] The present utility model will be further described below with reference to the drawings.

[0017] Figure 1 is a perspective view of an autotransformer in the present utility model;

[0018] Figure 2 is a schematic structural view of the first magnetic block in the present utility model;

[0019] Figure 3 is a schematic structural view of the protection box in the present utility model;

[0020] Figure 4 is a schematic structural view of the elastic band in the present utility model;

[0021] Figure 5 is a schematic structural view of the elastic plate in the present utility model;

[0022] Figure 6 is a schematic structural view of the rubber pad in the present utility model;

[0023] In the figure: 1, base; 10, through groove; 11, protection box; 12, first spring; 13, first groove; 14, second groove; 15, insertion rod; 16, first magnetic block; 17, insertion hole; 18, second magnetic block; 19, sliding groove; 20, slider; 2, fixed groove; 21, heat dissipation fan; 22, protection rod; 3, elastic band; 31, sponge block; 4, second spring; 41, rubber pad; 5, fixed rod; 51, elastic plate; 6, suction cup; 7, filter screen. Detailed Embodiments

[0024] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Such as Figures 1 to 6As shown in the figure, an autotransformer according to an embodiment of the present utility model includes a base 1; a through groove 10 is provided in the middle of the base 1; two protective boxes 11 are installed in the middle of the base 1; the two protective boxes 11 are arranged oppositely; a first groove 13 is provided in the middle of the protective box 11; the first groove 13 is provided near the bottom of the protective box 11; the bottom of the protective box 11 is slidably connected to the middle of the through groove 10; two sets of sliding grooves 19 are provided at the top of the base 1; a slider 20 is slidably connected to the middle of the sliding groove 19; the top of the slider 20 is fixedly connected to the middle of the first groove 13; two first springs 12 are fixedly connected to the ends of the two bases 1; a second groove 14 is provided at the top of the protective box 11; the second groove 14 is provided on one side of the top of the protective box 11; two insertion rods 15 are fixedly connected to one side of the protective box 11; the two insertion rods 15 are fixedly connected near the top of the protective box 11; a first magnetic block 16 is fixedly connected to the end of the insertion rod 15; two insertion holes 17 are provided at the corresponding position of the other protective box 11 on the side of the insertion rod 15; a second magnetic block 18 is fixedly connected to the end of the insertion hole 17; the first magnetic block 16 and the second magnetic block 18 attract each other when approaching; during operation, the two protective boxes 11 are pulled to both sides, the bottom of the protective box 11 slides inside the through groove 10, and at the same time, the two first springs 12 are elastically stretched outward by the pulling force, and the protective box 11 slides inside the sliding groove 19 through two sets of sliders 20, and at the same time, the two insertion rods 15 are pulled out from the insertion holes 17, so that the two protective boxes 11 are separated. After the two protective boxes 11 are opened, the transformer is placed in the middle of the base 1, and the wires of the transformer are placed on one side corresponding to the second groove 14. Release the two protective boxes 11, and the two protective boxes 11 slide inside the through groove 10 and approach each other by the elastic contraction of the first spring 12. During the approach of the two protective boxes 11, the insertion rod 15 moves into the insertion hole 17 along with the protective box 11. When the first magnetic block 16 contacts the second magnetic block 18, a suction force is generated for fixation, so that the two protective boxes 11 form a sealed state, and the transformer wires are placed in the middle of the second groove 14; the protective box 11 can prevent dust and foreign objects from entering the inside of the autotransformer during use, can effectively reduce the corrosion and damage of the internal components of the transformer by dust and impurities, and can effectively reduce the damage to the transformer caused by external mechanical shocks during the use of the transformer, thereby effectively extending the service life of the transformer, and the two protective boxes 11 can be made more tightly connected by inserting the insertion rod 15 into the insertion hole 17 through the first magnetic block 16 and the second magnetic block 18, reducing the problem of loosening of the protective box 11 during use, and the first magnetic block 16 and the second magnetic block 18 can provide an additional locking force for the connection of the protective box 11, effectively increasing the stability of the connection of the protective box 11.

[0026] As Figures 1 to 5As shown, a fixing groove 2 is formed in the side wall of the protection box 11; a heat dissipation fan 21 is installed in the middle of the fixing groove 2; a plurality of protection rods 22 are fixedly connected to the side wall of the protection box 11; the plurality of protection rods 22 are fixedly connected inside the protection box 11; during operation, when the autotransformer is in long-term use, a large amount of heat will be generated during the operation of the internal components. After the heat dissipation fan 21 is powered on and started, the heat dissipation fan 21 rotates, sucking in and discharging the heat generated during the operation of the transformer inside the protection box 11 to the outside, thereby dissipating the heat of the transformer. The transformer and the heat dissipation fan 21 are isolated by the protection rods 22. The heat dissipation fan 21 can accelerate the air flow inside and outside the protection box 11, effectively take away the heat generated inside the autotransformer quickly, effectively reduce the temperature inside the transformer, effectively reduce the faults and damages caused by overheating of the transformer, and effectively keep the transformer operating within a lower and stable temperature range. And through the plurality of protection rods 22, it can effectively reduce the direct contact between the transformer and the heat dissipation fan 21 when the transformer shakes inside the protection box 11, reducing the problems of collision and damage caused by the direct contact between the transformer and the heat dissipation fan 21, and effectively maintaining the stability and reliability of the transformer during use.

[0027] As Figure 4 shown, an elastic band 3 is fixedly connected to the top of the protection box 11; the other end of the elastic band 3 is fixedly connected to the side wall of the base 1; a plurality of sponge blocks 31 are fixedly connected to the middle of the elastic band 3; during operation, when the autotransformer is placed inside the protection box 11, when two protection boxes 11 are close to each other, one end of the elastic band 3 moves along with the top of the protection box 11, and at the same time, a plurality of sponge blocks 31 come into contact with the surface of the autotransformer. When the two protection boxes 11 are fitted together, the elastic band 3 tightens both sides of the transformer. The friction between the elastic band 3 and the surface of the transformer is increased by the sponge blocks 31. The cooperation of the elastic band 3 and the sponge blocks 31 can closely fit both sides of the autotransformer, effectively reducing the shaking problem of the transformer caused by vibration or external force during use. This stable fixing method can maintain the stability and safety of the autotransformer, and the sponge blocks 31 can absorb the vibration generated during the operation of the transformer, reducing the influence of mechanical stress on the electrical components inside the transformer.

[0028] As Figure 1 and Figure 6As shown, a plurality of second springs 4 are fixedly connected to the top of the base 1; the ends of the second springs 4 are fixedly connected with rubber pads 41; during operation, after the transformer is placed on the top of the base 1, first, the bottom of the transformer contacts the plurality of rubber pads 41. When the transformer is pressed downward, the plurality of second springs 4 simultaneously undergo elastic contraction, closing the two protective boxes 11. The second springs 4 that are not under pressure generate elastic reset. At the same time, the top of the protective box 11 fits against the top of the autotransformer. The internal gap is filled by the second springs 4. The transformer can be stably placed inside the protective box 11 by being supported by the second springs 4 and the rubber pads 41, which can effectively reduce the displacement or tipping of the transformer inside the protective box 11. The second springs 4 can effectively reduce the gap between the transformers inside the protective box 11, effectively reduce the shaking of the transformer inside the protective box 11 caused by external forces, and effectively reduce the problems of collision and friction generated by the shaking of the transformer inside the protective box 11. Moreover, the second springs 4 and the rubber pads 41 can effectively absorb the vibrations generated during the operation of the transformer.

[0029] As Figure 1 , Figure 4 , Figure 5 As shown, two groups of fixing rods 5 are fixedly connected to the side wall of the second groove 14; the two fixing rods 5 are a group; the two fixing rods 5 are arranged oppositely; the ends of the fixing rods 5 are fixedly connected with elastic plates 51; the elastic plates 51 are arc-shaped; during operation, after the transformer is placed inside the protective box 11, the wires of the transformer are also placed in the middle of the second groove 14. When the wires are pressed against one end of the two elastic plates 51, the compressed elastic plates 51 elastically open, allowing the wires to enter the middle of the two elastic plates 51. The wires of the transformer are clamped and fixed by the two opposing elastic plates 51. The elastic plates 51 can effectively fix the wires of the transformer stably on the top of the protective plate, effectively reducing the risk of the wires shaking or falling off due to vibrations or external factors, and effectively reducing the mutual contact between the wires. The wires can be effectively arranged in an orderly manner on the top of the protective box 11, reducing the problem of wire entanglement caused by the wires being in a mess, and effectively improving the reliability and stability of the transformer wires.

[0030] As Figure 1 and Figure 6As shown, a plurality of suction cups 6 are installed at the bottom of the base 1; the suction cups 6 are fixedly connected to the bottom of the base 1. During operation, after the transformer is placed inside the protective box 11, the base 1 is placed at a designated position. The plurality of suction cups 6 are in contact with the plane, and the plane is sucked and fixed by the plurality of suction cups 6. By adsorbing on a smooth surface through the plurality of suction cups 6, a more stable support can be provided for the protective box 11, effectively reducing the problem of displacement of the protective box 11 caused by external factors. Moreover, through the suction cups 6, the direct contact between the bottom of the base 1 and the plane can be effectively reduced, effectively reducing scratches and damage to the plane.

[0031] As Figure 1 and Figure 5 shown, a filter screen 7 is fixedly connected to the side wall of the base 1; the filter screen 7 is fixedly connected to the position of the corresponding fixing groove 2. During operation, when the cooling fan 21 is running, the dust and impurities in the air are intercepted by the filter screen 7, preventing the dust and impurities from entering the inside of the protective box 11 from the position of the fixing groove 2. Through the filter screen 7, the dust and impurities attached to the surface of the cooling fan 21 during operation can be effectively filtered out, effectively reducing the blockage caused by the direct entry of dust and impurities into the inside of the cooling fan 21, and effectively reducing the entry of dust and impurities into the inside of the protective box 11 and adsorbing on the surface of the transformer, effectively reducing the accumulation of dust and impurities on the surface of the transformer and causing damage to the components.

[0032] During operation, pull the two protective boxes 11 to both sides. The bottom of the protective box 11 slides inside the through groove 10. At the same time, the two first springs 12 are elastically stretched outward by the pulling force. And the protective box 11 slides inside the sliding groove 19 through two groups of sliders 20. At the same time, the two insertion rods 15 are pulled out from inside the insertion holes 17, so that the two protective boxes 11 are separated. After opening the two protective boxes 11, place the transformer in the middle of the base 1, and place the transformer wires on one side of the corresponding second groove 14. Release the two protective boxes 11. The two protective boxes 11 slide inside the through groove 10 and approach each other due to the elastic contraction of the first springs 12. During the approaching process of the two protective boxes 11, the insertion rods 15 move into the insertion holes 17 along with the protective boxes 11. When the first magnet 16 contacts the second magnet 18, a suction force is generated for fixation, so that the two protective boxes 11 form a sealed state, and the transformer wires are placed in the middle of the second groove 14. When the autotransformer operates for a long time, a large amount of heat will be generated during the operation of the internal components. After the cooling fan 21 is powered on and started, the cooling fan 21 rotates, sucking in the heat generated during the operation of the transformer inside the protective box 11 and discharging it to the outside, thereby dissipating heat from the transformer. The transformer is isolated from the cooling fan 21 through the protective rod 22. After the autotransformer is placed inside the protective box 11, when the two protective boxes 11 approach, one end of the elastic band 3 moves along with the top of the protective box 11. At the same time, multiple sponge blocks 31 come into contact with the surface of the autotransformer. When the two protective boxes 11 are fitted together, the elastic band 3 tightens both sides of the transformer. After placing the transformer on the top of the base 1, first, the bottom of the transformer contacts multiple rubber pads 41. When the transformer is pressed down, the multiple second springs 4 are elastically contracted at the same time. When the two protective boxes 11 are closed, the second springs 4 that are not under pressure generate elastic reset. At the same time, the top of the protective box 11 fits with the top of the autotransformer, and the internal gap is filled by the second springs 4. After the transformer is placed inside the protective box 11, the transformer wires are also placed in the middle of the second groove 14. Press one end of the two elastic plates 51 against the wires. The squeezed elastic plates 51 elastically open, allowing the wires to enter the middle of the two elastic plates 51. The transformer wires are clamped and fixed by the two opposing elastic plates 51. After the transformer is placed inside the protective box 11, place the base 1 at the designated position. The multiple suction cups 6 contact the plane, and the plane is sucked and fixed by the multiple suction cups 6. During the operation of the cooling fan 21, the filter screen 7 intercepts dust and impurities in the air, preventing the dust and impurities from entering the protective box 11 from the fixed groove 2 position.

[0033] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An autotransformer voltage regulator, comprising a base (1); characterized in that: A through groove (10) is formed in the middle of the base (1); two protective boxes (11) are installed in the middle of the base (1); the two protective boxes (11) are arranged oppositely; a first groove (13) is formed in the middle of the protective box (11); the first groove (13) is formed at a position close to the bottom of the protective box (11); the bottom of the protective box (11) is slidably connected to the middle of the through groove (10); two sets of sliding grooves (19) are formed at the top of the base (1); a slider (20) is slidably connected to the middle of the sliding groove (19); the top of the slider (20) is fixedly connected to the middle of the first groove (13); two first springs (12) are fixedly connected to the ends of the two bases (1); a second groove (14) is formed at the top of the protective box (11); the second groove (14) is formed at one side of the top of the protective box (11); two inserting rods (15) are fixedly connected to one side of one of the protective boxes (11); the two inserting rods (15) are fixedly connected at a position close to the top of the protective box (11); a first magnet block (16) is fixedly connected to the end of the inserting rod (15); two inserting holes (17) are formed at the position corresponding to the inserting rod (15) on one side of the other protective box (11); a second magnet block (18) is fixedly connected to the end of the inserting hole (17); the first magnet block (16) and the second magnet block (18) attract each other when approaching each other.

2. The autotransformer according to claim 1, characterized in that: A fixing groove (2) is formed in the side wall of the protective box (11); a heat dissipation fan (21) is installed in the middle of the fixing groove (2); multiple groups of protective rods (22) are fixedly connected to the side wall of the protective box (11); the multiple groups of protective rods (22) are fixedly connected inside the protective box (11).

3. An autotransformer according to claim 2, characterized in that: An elastic band (3) is fixedly connected to the top of the protective box (11); the other end of the elastic band (3) is fixedly connected to the side wall of the base (1); multiple sponge blocks (31) are fixedly connected to the middle of the elastic band (3).

4. An autotransformer according to claim 3, characterized in that: Multiple second springs (4) are fixedly connected to the top of the base (1); a rubber pad (41) is fixedly connected to the end of the second spring (4).

5. An autotransformer according to claim 4, characterized in that: Two groups of fixing rods (5) are fixedly connected to the side wall of the second groove (14); the two fixing rods (5) are in a group; the two fixing rods (5) are arranged oppositely; an elastic plate (51) is fixedly connected to the end of the fixing rod (5); the elastic plate (51) is arc-shaped.

6. The autotransformer according to claim 5, characterized in that: Multiple suction cups (6) are installed at the bottom of the base (1); the suction cups (6) are fixedly connected to the bottom of the base (1).

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