Circulating heat dissipation step-down transformer

Abstract

The step-down transformer comprises a cover body, a partition plate and a turning cover, the partition plate is fixedly arranged at the middle end inside the cover body, the turning cover is arranged at the front end outside the cover body, and the step-down transformer is arranged at the upper end inside the cover body. The step-down transformer is cooled in a dual mode of heat conduction and cold air circulation flow, the rapid heat dissipation and cooling effect of the step-down transformer is improved, in addition, by prolonging the flowing space of gas from the interior of the partition plate, the efficiency of refrigerating the gas through the partition plate in a low temperature is ensured, and the service life of the partition plate is prolonged. And the heat dissipation effect of the cold air on the step-down transformer is further improved. Through the design of a dismounting function, a worker can conveniently and quickly combine or separate the step-down transformer and the cover body, so that the worker can conveniently take out the step-down transformer in the cover body for maintenance or replacement, in addition, through the design of a limiting function, the worker can be prevented from pulling a wedge-shaped rod by mistake, and the working efficiency is improved. And the stability after the wedge-shaped rod locks the cover body and the step-down transformer is combined is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage reducers, in particular to a voltage reducer with circulating heat dissipation. Background Art

[0002] The step-down transformer is a transformer that converts the higher voltage at the input end into a relatively low ideal output voltage to achieve the purpose of stepping down the voltage. The step-down transformer is a very important device in the power transmission and transformation system. Its normal operation is not only related to its own safety and the reliable power supply of users, but also directly affects the stability of the power system. The configuration of the step-down transformer protection should meet the requirements that the transformer cannot be burned under any circumstances, which will expand the accident and affect the stability of the power system. Its working principle, relay protection principle, operating conditions, operation and requirements, as well as abnormal operation and handling methods are introduced in detail. However, the traditional step-down transformer has poor heat dissipation effect and cannot quickly exchange heat with the outside world. Therefore, a large amount of heat will be generated during operation. When a certain temperature is reached, it is easy to damage the internal components. Therefore, it is necessary to reduce the power or stop working, which greatly affects the working efficiency of the step-down transformer.

[0003] The patent name is "A high-efficiency, low-heat step-down device" with publication number "CN209880320U". The public document solves the above problems, but the heat dissipation structure in the public document can only dissipate heat from the step-down device by heat conduction. This heat conduction has poor heat dissipation efficiency and cannot quickly cool the step-down device, thereby affecting the heat dissipation effect of the step-down device. Based on this, the utility model designs a step-down device with circulating heat dissipation to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a circulating heat dissipation step-down device to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circulating heat dissipation reducer, comprising a cover body, a partition and a flap, the partition being fixedly arranged at the middle end of the cover body, the flap being arranged at the front end of the cover body, a reducer being arranged at the upper end of the cover body, a cooling component being arranged at the lower end of the cover body, the cooling component comprising a semiconductor refrigeration plate arranged at the lower end of the cover body, and the semiconductor refrigeration plate being fixedly connected to the inner wall of the flap, an air suction pump being fixedly arranged at the lower side of the rear end of the cover body, an air inlet hole being integrally arranged at the lower side of the rear end of the cover body, an exhaust hole being integrally arranged at the upper end of the flap, a controller being fixedly arranged at the top of the cover body, and guide holes being integrally arranged at the left and right ends of the partition.

[0006] Furthermore, the air inlet, exhaust hole and guide hole are all through-hole designs, and the guide hole is designed in a wave-shaped direction. The bottom end of the flip cover is hingedly connected to the cover body, and the top end of the flip cover is connected to the cover body lock.

[0007] Furthermore, the partition is made of copper material, a first one-way valve is fixedly provided inside the air inlet, a second one-way valve is fixedly provided inside the air outlet, and a stop valve is fixedly provided inside the flow guide hole.

[0008] Furthermore, a plurality of clearance holes are integrally provided on the upper side of the rear end of the cover body, and the clearance holes are through holes.

[0009] Furthermore, a connecting plate is fixedly provided on the top of the voltage reducer, a sliding block is fixedly provided on the rear end of the top of the connecting plate, the cross section of the sliding block is T-shaped, and a plug hole is integrally provided inside the sliding block.

[0010] Furthermore, a guide groove with a T-shaped cross section is integrally provided at the top of the inner part of the cover body, and the guide groove and the sliding block can be plug-in-type for assembly and disassembly.

[0011] Furthermore, a wedge-shaped rod is slidably penetrated through the rear end of the top of the cover body, and the front side of the lower end of the wedge-shaped rod is designed as an inclined surface, so that the wedge-shaped rod and the insertion hole can be disassembled and assembled.

[0012] Furthermore, a spring is sleeved on the outer lower end of the wedge-shaped rod, the bottom end of the spring is fixedly connected to the cover body, and the top end of the spring is fixedly connected to the wedge-shaped rod.

[0013] Furthermore, a limiting hole is integrally provided at the upper end of the inner part of the wedge-shaped rod, and the limiting hole is a through hole, and the axis of the limiting hole is designed to be perpendicular to the axis of the wedge-shaped rod.

[0014] Furthermore, a mounting plate is fixedly provided at the rear end of the top of the cover body, and a latch is threadedly penetrated through the upper side of the rear end of the mounting plate, and the axis of the latch is coaxial with the axis of the limiting hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model cools down the step-down device through the dual methods of heat conduction and cold air circulation. It can be seen that by using the device in the present application, the effect of rapid heat dissipation and cooling of the step-down device is improved. In addition, by extending the space for gas to flow from the inside of the partition, the efficiency of the partition in the low temperature to cool the gas is ensured, further improving the heat dissipation effect of the cold air on the step-down device.

[0017] 2. The utility model is designed with a disassembly and assembly function, which makes it easy for the staff to quickly combine or separate the voltage reducer from the cover body, so that the staff can easily take out the voltage reducer inside the cover body for maintenance or replacement. In addition, the design of the limit function can prevent the staff from accidentally pulling the wedge rod, ensuring the stability of the combination of the cover body and the voltage reducer after the wedge rod locks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a front perspective view of a circulating heat dissipation step-down device of the utility model;

[0020] Figure 2 This is a perspective view of the internal side structure of a circulating heat dissipation step-down device of the utility model;

[0021] Figure 3 It is a three-dimensional view of the interior of the partition;

[0022] Figure 4 It is a three-dimensional diagram of the cover body and the guide groove;

[0023] Figure 5 A three-dimensional diagram of a slider, a jack, a connecting plate, and a voltage reducer;

[0024] Figure 6 It is a three-dimensional diagram of the wedge rod and the limiting hole.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-cover, 2-partition, 3-flip cover, 4-pressure reducer, 5-cooling component, 501-semiconductor refrigeration plate, 502-air suction pump, 503-air inlet, 504-exhaust hole, 505-controller, 506-flow guide hole, 6-first one-way valve, 7-second one-way valve, 8-stop valve, 9-allowance hole, 10-connecting plate, 11-slider, 12-jack, 13-guide groove, 14-wedge rod, 15-spring, 16-limiting hole, 17-mounting plate, 18-latch. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1 , Figure 2 , Figure 3 As shown, the device includes a cover body 1, a partition 2 and a flap 3, the partition 2 is fixedly arranged at the middle end of the cover body 1, the flap 3 is arranged at the front end of the cover body 1, a reducer 4 is arranged at the upper end of the cover body 1, a cooling component 5 is arranged at the lower end of the cover body 1, the cooling component 5 includes a semiconductor refrigeration plate 501 arranged at the lower end of the cover body 1, and the semiconductor refrigeration plate 501 is fixedly connected to the inner wall of the flap 3, an air suction pump 502 is fixedly arranged at the lower side of the rear end of the cover body 1, an air inlet hole 503 is integrally arranged at the lower side of the rear end of the cover body 1, an exhaust hole 504 is integrally arranged at the upper end of the flap 3, a controller 505 is fixedly arranged at the top of the cover body 1, and guide holes 506 are integrally arranged at the left and right ends of the partition 2.

[0030] The air inlet 503, the air outlet 504 and the guide hole 506 are all through-hole designs, and the guide hole 506 is designed in a wavy direction. The bottom end of the flip cover 3 is hingedly connected to the cover body 1, and the top end of the flip cover 3 is lockably connected to the cover body 1. The partition 2 is made of copper material. A first one-way valve 6 is fixedly provided inside the air inlet 503, a second one-way valve 7 is fixedly provided inside the air outlet 504, and a stop valve 8 is fixedly provided inside the guide hole 506. First, turn on the semiconductor refrigeration sheet 501 and the air pump 502. The semiconductor refrigeration sheet 501 cools the air at the lower end of the interior of the cover body 1 and the partition 2. Since the partition 2 is made of copper material and has good thermal conductivity, the cooled partition 2 absorbs the heat generated by the step-down device 4 when it is working. At the same time, the air pump 502 discharges the external gas into the lower end of the interior of the cover body 1 through the air inlet 503. At this time, the cold air at the lower end of the interior of the cover body 1 enters the guide hole 506, so that the partition 2 performs a secondary cooling treatment on the cold air. The cold air after the secondary cooling is discharged into the upper end of the interior of the cover body 1, thereby performing a secondary cooling treatment on the step-down device 4. The cold air discharged into the upper end of the interior of the cover body 1 is discharged to the outside through the exhaust hole 504. In the above manner, the gas is placed in a state of circulating flow cooling to quickly dissipate heat from the step-down device 4. The first one-way valve 6 can prevent the cold air at the lower end of the cover body 1 from being discharged to the outside through the air inlet hole 503, the second one-way valve 7 can prevent the external gas from entering the cover body 1 through the exhaust hole 504, and the stop valve 8 can prevent the heat generated by the step-down device 4 during operation from being discharged into the lower end of the cover body 1 through the guide hole 506.

[0031] Example 2

[0032] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown, a plurality of clearance holes 9 are integrally provided on the upper side of the rear end of the cover body 1, and the clearance holes 9 are through-holes. A connecting plate 10 is fixedly provided on the top of the voltage reducer 4, and a slider 11 is fixedly provided on the rear end of the top of the connecting plate 10. The cross section of the slider 11 is T-shaped, and a plug hole 12 is integrally provided inside the slider 11. A guide groove 13 with a T-shaped cross section is integrally provided on the top of the cover body 1. The guide groove 13 and the slider 11 can be disassembled and assembled by plugging. A wedge rod 14 is slidably penetrated through the rear end of the top of the cover body 1, and the front side of the lower end of the wedge rod 14 is an inclined surface design. The wedge rod 1 4 and the socket 12 can be disassembled and assembled. A spring 15 is sleeved on the lower end of the wedge rod 14. The bottom end of the spring 15 is fixedly connected to the cover body 1, and the top end of the spring 15 is fixedly connected to the wedge rod 14. A limiting hole 16 is integrally arranged on the upper end of the wedge rod 14. The limiting hole 16 is a through hole. The axis of the limiting hole 16 is in a vertically intersecting design with the axis of the wedge rod 14. A mounting plate 17 is fixedly arranged on the rear end of the top of the cover body 1. A bolt 18 is threadedly penetrated on the upper side of the rear end of the mounting plate 17. The axis of the bolt 18 is in a coaxial design with the axis of the limiting hole 16.

[0033] When the staff needs to maintain or replace the depressurizer 4, they first use the controller 505 to turn off the suction pump 502 and the semiconductor cooling plate 501, then reverse the latch 18 to disengage the latch 18 from the limit hole 16, then open the flip cover 3, pull the wedge rod 14 to disengage the wedge rod 14 from the socket 12, and then disengage the depressurizer 4 together with the connecting plate 10 and the slider 11 from the guide groove 13, so as to take the depressurizer 4 out of the cover body 1. After the maintenance is completed, the slider 11 is inserted into the guide groove 13. When the voltage reducer 4 is pushed into the groove 13 until the rear end surface of the voltage reducer 4 fits with the rear end surface inside the cover body 1, the slider 11 squeezes the inclined surface of the wedge rod 14 to move upward, and the spring 15 is deformed. When the wedge rod 14 and the socket 12 coincide with each other, the wedge rod 14 is inserted into the socket 12 through the rebound force of the spring 15, and the state of the voltage reducer 4 placed inside the cover body 1 is locked, and then the pin 18 is screwed into the limit hole 16, and the clearance hole 9 makes way for the area where the voltage reducer 4 is connected to the external wires.

Claims

1. A circulating heat dissipation step-down device, comprising a housing (1), a partition (2) and a flip cover (3), characterized in that: The partition (2) is fixedly arranged at the middle end of the cover body (1), the flip cover (3) is arranged at the front end of the cover body (1), a pressure reducer (4) is arranged at the upper end of the cover body (1), a cooling component (5) is arranged at the lower end of the cover body (1), the cooling component (5) comprises a semiconductor cooling plate (501) arranged at the lower end of the cover body (1), and the semiconductor cooling plate (501) is fixedly connected to the inner wall of the flip cover (3), an air suction pump (502) is fixedly arranged at the lower side of the rear end of the cover body (1), an air inlet hole (503) is integrally arranged at the lower side of the rear end of the cover body (1), an exhaust hole (504) is integrally arranged at the upper end of the flip cover (3), a controller (505) is fixedly arranged at the top of the cover body (1), and guide holes (506) are integrally arranged at the left and right ends of the partition (2).

2. A circulating heat dissipation step-down device according to claim 1, characterized in that: The air inlet (503), the air outlet (504) and the air guide hole (506) are all through-hole designs, and the air guide hole (506) is designed to be wavy in shape. The bottom end of the flip cover (3) is hingedly connected to the cover body (1), and the top end of the flip cover (3) is lockably connected to the cover body (1).

3. A circulating heat dissipation step-down device according to claim 1, characterized in that: The partition (2) is made of copper material, a first one-way valve (6) is fixedly arranged inside the air inlet (503), a second one-way valve (7) is fixedly arranged inside the air outlet (504), and a stop valve (8) is fixedly arranged inside the flow guide hole (506).

4. A circulating heat dissipation step-down device according to claim 1, characterized in that: A plurality of clearance holes (9) are integrally provided on the upper side of the rear end of the cover body (1), and the clearance holes (9) are through-holes.

5. The step-down device with circulating heat dissipation according to claim 1, characterized in that: A connecting plate (10) is fixedly provided on the top of the voltage reducer (4), a sliding block (11) is fixedly provided on the rear end of the top of the connecting plate (10), the cross section of the sliding block (11) is T-shaped, and a plug hole (12) is integrally provided inside the sliding block (11).

6. The circulating heat dissipation step-down device according to claim 1, characterized in that: A guide groove (13) with a T-shaped cross section is integrally provided at the top end of the cover body (1), and the guide groove (13) and the sliding block (11) can be disassembled and assembled in a plug-in manner.

7. The circulating heat dissipation step-down device according to claim 1, characterized in that: A wedge-shaped rod (14) is slidably penetrated through the rear end of the top of the cover body (1), and the front side of the lower end of the wedge-shaped rod (14) is designed as an inclined surface. The wedge-shaped rod (14) and the insertion hole (12) can be disassembled and assembled.

8. A circulating heat dissipation step-down device according to claim 7, characterized in that: A spring (15) is sleeved on the lower end of the wedge-shaped rod (14); the bottom end of the spring (15) is fixedly connected to the cover body (1), and the top end of the spring (15) is fixedly connected to the wedge-shaped rod (14).

9. A circulating heat dissipation step-down device according to claim 7, characterized in that: A limiting hole (16) is integrally provided at the upper end of the inner part of the wedge-shaped rod (14); the limiting hole (16) is a through hole; and the axis of the limiting hole (16) is vertically intersecting with the axis of the wedge-shaped rod (14).

10. The circulating heat dissipation step-down device according to claim 1, characterized in that: A mounting plate (17) is fixedly provided at the rear end of the top of the cover body (1), and a latch (18) is threadedly penetrated through the upper side of the rear end of the mounting plate (17), and the axis of the latch (18) is coaxial with the axis of the limiting hole (16).

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