CN213025713U - Inflatable high-voltage test transformer - Google Patents

Abstract

The utility model relates to an electrical test equipment technical field just discloses an inflatable high-voltage testing transformer, including the transformer main part, the top of transformer main part and the bottom fixed connection of sealed lid, the outside of transformer main part is provided with a heat dissipation section of thick bamboo, leave the space between a heat dissipation section of thick bamboo and the transformer main part, the top of a heat dissipation section of thick bamboo and the bottom fixed connection of sealed lid, the top of sealed lid and the bottom fixed connection of water inlet. This inflatable high-voltage testing transformer drives main pivot and dwang through setting up driving motor and rotates to drive catch bar through pushing the piece and promote the sliding plate and remove, realize the compression to a heat dissipation section of thick bamboo inner space, and set up a heat dissipation section of thick bamboo, drain pipe, cooler bin and drinking-water pipe and cooperate, make a heat dissipation section of thick bamboo continuously cool off transformer main body, reduced transformer main body because of the probability that high temperature takes place the fracture, improved the security of device when carrying out high-voltage testing.

Description

Inflatable high-voltage test transformer

Technical Field

The utility model relates to an electrical test equipment technical field specifically is an inflatable high-voltage testing transformer.

Background

The power frequency voltage withstand test, namely applying power frequency voltage to the tested object to test the insulation bearing capacity of the tested object to the increase of the power frequency voltage, is the most effective and direct test method for identifying the insulation strength of the tested object. The transformer is one of important elements of a power frequency withstand voltage test. Under the power frequency condition, because the tested object capacitance is great, or the test voltage requirement is higher, also has higher requirement to the power capacity correspondence of test device, therefore, the high-voltage test transformer among the traditional power frequency withstand voltage device often the singleton is bulky, and weight is heavy to make power frequency withstand voltage test device be not convenient for the on-the-spot transport, be not convenient for arbitrary combination moreover, the flexibility is relatively poor. In addition, the pressure variation range of the existing high-voltage test transformer is limited, and the existing high-voltage test transformer cannot be flexibly applied to the voltage requirements of tooling experiments under various scenes.

Chinese patent publication No. CN204422571U proposes an inflatable test transformer. The method comprises the following steps: it is filled with gaseous box, is fixed in the equalizer ball on the box through high-voltage bushing, is located the coil in the box, wherein: a high-voltage output line is arranged in the high-voltage sleeve, one end of the high-voltage output line is connected with a high-voltage winding of the coil, and the other end of the high-voltage output line is positioned on the voltage-equalizing ball; and a secondary voltage input end connected with a low-voltage winding of the coil is arranged on the shell of the box body. Therefore, the utility model has the following advantages: the structure is simple: the utility model reduces the volume, weight and production cost of the device through reasonable design; (II) the voltage grade of a single test transformer can reach 300KV, so that the pressure conversion range is enlarged; and (III) no oil pollution exists, and the environment is protected. However, the device has poor heat dissipation performance when in use, internal pressure of the device is increased in a high-temperature state, cracking is easy to occur, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an inflatable high-voltage testing transformer, heat dispersion is poor when having solved the use, and the device presses the increase in under the high temperature state, easily takes place the fracture, has the problem of potential safety hazard.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: an inflatable high-voltage test transformer comprises a transformer main body, wherein the top of the transformer main body is fixedly connected with the bottom of a sealing cover, a heat radiating cylinder is arranged on the outer side of the transformer main body, a gap is reserved between the heat radiating cylinder and the transformer main body, the top of the heat radiating cylinder is fixedly connected with the bottom of the sealing cover, the top of the sealing cover is fixedly connected with the bottom of a water inlet, the bottom of the water inlet penetrates through the sealing cover and is positioned inside the heat radiating cylinder, the outer side wall of the heat radiating cylinder is fixedly connected with the inner wall of a supporting frame, the bottom of the rear side of the heat radiating cylinder is fixedly connected with the front end of a water outlet, a water drainage pipe is arranged on the right side of the water outlet, the front end of the water drainage pipe is fixedly connected with the rear side of the heat radiating cylinder, the bottom of the water drainage pipe, the bottom end of the water pumping pipe is positioned in the cooling box, the rear inner wall of the heat radiating cylinder is fixedly connected with the rear side of the partition plate, the left end and the right end of the front side of the partition plate are fixedly connected with the rear sides of a group of fixed plates, the front side of the fixed plate is fixedly connected with the rear side of the transformer main body, the left side of the fixed plate positioned on the left side of the partition plate is fixedly connected with the right side of the waterproof shell, the left inner wall of the waterproof shell is fixedly connected with the left side of the driving motor, the output end of the driving motor penetrates through the fixed plate positioned on the right side of the driving motor and is fixedly connected with the left end of the main rotating shaft, the right end of the main rotating shaft is rotatably connected with the left side of the fixed plate positioned on the right side of the main rotating shaft, the left side and the right side of the outer wall of the main rotating shaft are fixedly connected with one side of a, the front side of the sliding plate is in contact with the rear side of the transformer main body, the left side of the top of the sliding plate below the main rotating shaft and the right side of the bottom of the sliding plate above the main rotating shaft are fixedly connected with a group of push rods, and the right side of the left push rod and the left side of the right push rod in the two groups of push rods are fixedly connected with a plurality of groups of push blocks.

Preferably, the width of dwang equals with the width that promotes the piece, and is two sets of promote the piece and be located two sets of dwang directly over respectively.

Preferably, the two groups of sliding plates are provided with sliding holes at the rear side of the upper sliding plate and at the front side of the lower sliding plate, and the width of each sliding hole is equal to the sum of the widths of the pushing block and the pushing rod.

Preferably, the bottom end of the water pumping pipe and the inner wall of the bottom of the cooling box are located on the same horizontal plane, and the driving motor is a bidirectional motor.

Preferably, the top and the bottom of the two groups of fixed plates are fixedly connected with one side of one group of limiting plates close to the fixed plates, and the front sides of the limiting plates are fixedly connected with the front sides of the partition plates.

Preferably, the water inlet and the water outlet are both provided with valves, the rear side of the sliding plate is in contact with the front side of the partition plate, a gap is reserved between the limiting plate and the partition plate, and the part of the partition plate, which is positioned at the rear side of the sliding plate, is provided with a vent hole.

(III) advantageous effects

Compared with the prior art, the utility model provides an inflatable high-voltage testing transformer possesses following beneficial effect:

1. this inflatable high-voltage testing transformer drives main pivot and dwang through setting up driving motor and rotates to drive catch bar through pushing the piece and promote the sliding plate and remove, realize the compression to a heat dissipation section of thick bamboo inner space, and set up a heat dissipation section of thick bamboo, drain pipe, cooler bin and drinking-water pipe and cooperate, make a heat dissipation section of thick bamboo continuously cool off transformer main body, reduced transformer main body because of the probability that high temperature takes place the fracture, improved the security of device when carrying out high-voltage testing.

2. This inflatable high-voltage testing transformer, through setting up the dwang and pushing the width of piece equal and set up and promote the piece and be located the dwang directly over for the dwang changes in and promotes the piece and collide, slides along the fixed plate with driving the catch bar promotion sliding plate, through setting up the limiting plate, makes the sliding plate contact with the limiting plate when removing to the maximum distance, avoids sliding plate and fixed plate emergence to break away from.

Drawings

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

FIG. 2 is a schematic diagram of the structure of the transformer of the present invention;

fig. 3 is a schematic view of the structure of the push rod of the present invention.

In the figure: 1. a sealing cover; 2. a heat-dissipating cylinder; 3. a support frame; 4. a water inlet; 5. a water pumping pipe; 6. a drain pipe; 7. a cooling tank; 8. a water outlet; 9. a fixing plate; 10. a partition plate; 11. a limiting plate; 12. a waterproof housing; 13. a drive motor; 14. a main rotating shaft; 15. rotating the rod; 16. a push rod; 17. a pushing block; 18. a sliding plate; 19. a transformer body.

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. 1-3, the present invention provides a technical solution: an inflatable high-voltage test transformer comprises a transformer main body 19, the top of the transformer main body 19 is fixedly connected with the bottom of a sealing cover 1, a heat radiation cylinder 2 is arranged on the outer side of the transformer main body 19, a gap is reserved between the heat radiation cylinder 2 and the transformer main body 19, the top of the heat radiation cylinder 2 is fixedly connected with the bottom of the sealing cover 1, the top of the sealing cover 1 is fixedly connected with the bottom of a water inlet 4, the bottom of the water inlet 4 penetrates through the sealing cover 1 and is positioned inside the heat radiation cylinder 2, the outer side wall of the heat radiation cylinder 2 is fixedly connected with the inner wall of a supporting frame 3, the bottom of the rear side of the heat radiation cylinder 2 is fixedly connected with the front end of a water outlet 8, a water discharge pipe 6 is arranged on the right side of the water outlet 8, the front end of the water discharge pipe 6 is fixedly connected with the rear side of the heat radiation cylinder 2, the, the bottom end of the water pumping pipe 5 is positioned inside the cooling box 7, the rear inner wall of the heat radiating cylinder 2 is fixedly connected with the rear side of a partition plate 10, the left and right ends of the front side of the partition plate 10 are fixedly connected with the rear sides of a group of fixing plates 9, the front side of the fixing plates 9 is fixedly connected with the rear side of a transformer main body 19, the left side of the fixing plates 9 positioned on the left side of the partition plate 10 is fixedly connected with the right side of a waterproof shell 12, the left inner wall of the waterproof shell 12 is fixedly connected with the left side of a driving motor 13, the output end of the driving motor 13 penetrates through the fixing plates 9 positioned on the right side of the driving motor and is fixedly connected with the left end of a main rotating shaft 14, the right end of the main rotating shaft 14 is rotatably connected with the left side of the fixing plates 9 positioned on the right side of the main rotating shaft 14, the left and right sides of the outer wall of the main rotating shaft 14 are fixedly connected with, the front side of the sliding plate 18 contacts with the rear side of the transformer main body 19, the left side of the top of the sliding plate 18 below the main rotating shaft 14 and the right side of the bottom of the sliding plate 18 above the main rotating shaft 14 are fixedly connected with a group of push rods 16, and the right side of the left push rod 16 and the left side of the right push rod 16 in the two groups of push rods 16 are fixedly connected with a plurality of groups of push blocks 17.

Specifically, in order to facilitate the rotating rod 15 to collide with the pushing block 17, the width of the rotating rod 15 is equal to that of the pushing block 17, and the two sets of pushing blocks 17 are respectively located right above the two sets of rotating rods 15.

Specifically, in order to facilitate the movement of the pushing rod 16 and the pushing block, sliding holes are formed in the rear sides of the upper sliding plates 18 and the front sides of the lower sliding plates 18 in the two groups of sliding plates 18, and the width of each sliding hole is equal to the sum of the widths of the pushing block 17 and the pushing rod 16.

Specifically, in order to improve the water pumping efficiency of the water pumping pipe 5, the bottom end of the water pumping pipe 5 and the inner wall of the bottom of the cooling box 7 are located on the same horizontal plane, and the driving motor 13 is a bidirectional motor.

Specifically, in order to avoid the sliding plate 18 from being separated from the fixed plates 9, the top and the bottom of each of the two groups of fixed plates 9 are fixedly connected to one side of one group of limiting plates 11 close to the top and the bottom, the front side of each limiting plate 11 is fixedly connected to the front side of the corresponding partition plate 10, and the limiting plates 11 limit the maximum moving distance of the sliding plate 18.

Specifically, in order to ensure the efficiency of pumping water in the heat dissipation cylinder 2, valves are respectively arranged on the water inlet 4 and the water outlet 8, the rear side of the sliding plate 18 is in contact with the front side of the partition plate 10, a gap is reserved between the limiting plate 11 and the partition plate, a vent hole is formed in the part, located on the rear side of the sliding plate 18, of the partition plate 10, and after the valves are closed, a closed space is formed inside the heat dissipation cylinder 2, the water drainage pipe 6, the water pumping pipe 5 and the cooling box 7.

The working principle is as follows: filling sulfur hexafluoride gas into the transformer main body 19, performing a high-pressure test, opening the valve at the water inlet 4 to make cooling water fill the heat-dissipating cylinder 2 and close the valve at the water inlet 4, starting the driving motor 13, driving the main rotating shaft 14 to rotate by the driving motor 13, thereby driving the rotating rod 15 to rotate and pushing the pushing rod 16 to move through the pushing block 17, the pushing rod 16 driving the sliding plate 18 to slide along the fixed plate 9, thereby compressing the space inside the heat dissipating cylinder 2, the water in the heat-radiating cylinder 2 is discharged into the cooling tank through the water discharge pipe 6 under the air pressure and cooled, and when the sliding plate 18 is in contact with the restriction plate 11, the driving motor 13 is rotated in the reverse direction to reset the slide plate 18, releasing the previously compressed space inside the heat radiating cylinder 2, the water in the cooling box 7 is pumped back to the heat dissipation cylinder 2 by the water pumping pipe 5 under the action of air pressure, so that the circulating cooling of the transformer main body 19 is realized.

In conclusion, the inflatable high-voltage test transformer is provided with the driving motor 13 to drive the main rotating shaft 14 and the rotating rod 15 to rotate, so that the pushing rod 16 is driven by the pushing block 17 to push the sliding plate 18 to move, thereby compressing the inner space of the heat dissipation cylinder 2, the drain pipe 6, the cooling box 7 and the water pumping pipe 5 are arranged to be matched, so that the heat dissipation cylinder 2 continuously cools the transformer main body 19, the probability of cracking of the transformer main body 19 due to high temperature is reduced, the safety of the device during high-voltage test is improved, the width of the rotating rod 15 is equal to that of the pushing block 17, the pushing block 17 is arranged right above the rotating rod 15, so that the rotating rod 15 is more easily collided with the pushing block 17, the pushing rod 16 is driven to push the sliding plate 18 to slide along the fixing plate 9, and the sliding plate 18 is contacted with the limiting plate 11 when moving, the sliding plate 18 is prevented from being separated from the fixed plate 9.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (6)

1. The utility model provides an inflatable high voltage test transformer, includes transformer main part (19), its characterized in that: the top of the transformer body (19) is fixedly connected with the bottom of the sealing cover (1), a heat radiating cylinder (2) is arranged on the outer side of the transformer body (19), a gap is reserved between the heat radiating cylinder (2) and the transformer body (19), the top of the heat radiating cylinder (2) is fixedly connected with the bottom of the sealing cover (1), the top of the sealing cover (1) is fixedly connected with the bottom of the water inlet (4), the bottom of the water inlet (4) penetrates through the sealing cover (1) and is positioned inside the heat radiating cylinder (2), the outer side wall of the heat radiating cylinder (2) is fixedly connected with the inner wall of the supporting frame (3), the bottom of the rear side of the heat radiating cylinder (2) is fixedly connected with the front end of the water outlet (8), the right side of the water outlet (8) is provided with a water drainage pipe (6), and the front end of the water drainage pipe (6) is fixedly connected with the rear, the bottom of drain pipe (6) passes the top wall of cooler bin (7) and is located inside cooler bin (7), the right side of a heat dissipation section of thick bamboo (2) and the left end fixed connection of drinking-water pipe (5), the bottom of drinking-water pipe (5) is located inside cooler bin (7), the rear side inner wall of a heat dissipation section of thick bamboo (2) and the rear side fixed connection of baffle (10), both ends all with the rear side fixed connection of a set of fixed plate (9) about baffle (10) front side, the front side of fixed plate (9) and the rear side fixed connection of transformer main part (19), be located the left side of the left fixed plate (9) of baffle (10) and the right side fixed connection of waterproof shell (12), the left side inner wall of waterproof shell (12) and the left side fixed connection of driving motor (13), the output of driving motor (13) passes fixed plate (9) that are located its right side and is connected with the left side of main rotating shaft (14), the right end of the main rotating shaft (14) is rotatably connected with the left side of the fixing plate (9) positioned on the right side thereof, the left side and the right side of the outer wall of the main rotating shaft (14) are fixedly connected with one side of a group of rotating rods (15) close to the rotating rods, a group of sliding plates (18) are arranged above and below the main rotating shaft (14), the left side and the right side of the sliding plate (18) are respectively connected with one side of the fixed plate (9) which is positioned at the left side and the right side and is close to the fixed plate in a sliding way, the front side of the sliding plate (18) is in contact with the rear side of a transformer main body (19), the left side of the top of the sliding plate (18) below the main rotating shaft (14) and the right side of the bottom of the sliding plate (18) above the main rotating shaft (14) are fixedly connected with a group of push rods (16), and the right side of the left push rod (16) and the left side of the right push rod (16) in the two groups of push rods (16) are fixedly connected with a plurality of groups of push blocks (17).

2. The gas-filled high-voltage test transformer of claim 1, wherein: the width of dwang (15) equals with the width that promotes piece (17), and is two sets of it is located two sets of dwang (15) directly over respectively to promote piece (17).

3. The gas-filled high-voltage test transformer of claim 1, wherein: sliding holes are formed in the two groups of sliding plates (18) on the rear side of the upper sliding plate (18) and the front side of the lower sliding plate (18), and the width of each sliding hole is equal to the sum of the widths of the pushing block (17) and the pushing rod (16).

4. The gas-filled high-voltage test transformer of claim 1, wherein: the bottom of drinking-water pipe (5) and the bottom inner wall of cooler bin (7) are located same horizontal plane, driving motor (13) are two-way motor.

5. The gas-filled high-voltage test transformer of claim 1, wherein: the top and the bottom of the two groups of fixing plates (9) are fixedly connected with one side of a group of limiting plates (11) close to the fixing plates, and the front sides of the limiting plates (11) are fixedly connected with the front sides of the partition plates (10).

6. The gas-filled high-voltage test transformer of claim 5, wherein: valves are arranged on the water inlet (4) and the water outlet (8), the rear side of the sliding plate (18) is in contact with the front side of the partition plate (10), a gap is reserved between the limiting plate (11) and the partition plate, and a vent hole is formed in the part, located on the rear side of the sliding plate (18), of the partition plate (10).

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