Heat dissipation box type transformer

Abstract

The utility model discloses a heat dissipation box-type transformer which comprises a transformer body and a box body, the transformer body is arranged in the box body, a box cover is arranged at the top of the box body, a plurality of symmetrical notches are formed in inclined faces of the left side and the right side of the box cover from high to low, a top plate is fixed to the top face in the box body, and a circulating pipe is connected to the bottom of a rainwater collecting groove. A bottom plate is mounted on the bottom surface in the box body, a plurality of parallel base plates are arranged on the surface of the bottom plate, graphite heat-conducting fins wrap the base plates, and a heat dissipation aluminum plate is arranged at the bottom of the bottom plate. According to the scheme, heat at the position of the transformer in the box body is extracted upwards by the exhaust fan and dissipated from the notch, the heat dissipation aluminum plate can be cooled in the air flowing process, the heat dissipation aluminum plate can be cooled in the air flowing process, collected rainwater circularly flows in the box body in cooperation, the good heat dissipation effect is achieved, and the whole box type transformer structure has the good dustproof and heat dissipation effects.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type transformers, in particular to a heat dissipation box-type transformer. Background Art

[0002] The box-type transformer is also called a combined transformer, which is composed of a transformer, a high-voltage voltage control device, and a low-voltage voltage control device. The electronic components inside the box-type transformer in the prior art often emit a lot of heat when working due to the large number of circuits. If it is not discharged in time, it will affect the service life of the electronic components. Therefore, the heat in the box-type transformer needs to be dissipated in time. When the external air is introduced into the box-type transformer for heat dissipation, the dust prevention effect needs to be considered. Too much dust will also affect the normal operation of the electronic components in the transformer. In this regard, this solution provides a heat dissipation box-type transformer, which makes structural improvements for heat dissipation and dust prevention. Utility Model Content

[0003] The purpose of the utility model is to provide a heat dissipation box type transformer to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat dissipation box-type transformer, comprising a transformer and a box body, wherein the transformer is built inside the box body, a box cover is arranged on the top of the box body, and a plurality of symmetrical notches are arranged on the left and right inclined surfaces of the box cover from high to low, a top plate is fixed on the inner top surface of the box body, a rainwater collection trough is fixedly installed on the inner top plate of the box body, a circulation pipe is connected to the bottom of the rainwater collection trough, a bottom plate is installed on the inner bottom surface of the box body, a plurality of parallel pads are arranged on the surface of the bottom plate, a graphite heat conductive sheet is coated on the pad, a heat dissipation aluminum plate is arranged at the bottom of the bottom plate, and the left and right ends of the bottom surface of the heat dissipation aluminum plate and the graphite heat conductive sheet are in contact;

[0005] A circulation pump is fixedly installed inside the box, the circulation pipe is built into the inner wall of the box, and the top end of the circulation pipe passes through the internal top plate of the box, and the bottom end of the circulation pipe is fixed in the heat dissipation aluminum plate on the bottom surface of the bottom plate, and the heat dissipation aluminum plate is arranged along the horizontal axis of the bottom plate. The circulation pump is connected to the circulation pipe, and a one-way valve is arranged on one side of the box, and the one-way valve and the circulation pipe are connected;

[0006] An air duct cavity is provided at the bottom of the base plate, an air inlet is provided on the outer side of the bottom of the box body, a filter is provided between the air inlet and the air duct cavity, an air suction pipe is installed at the bottom of the base plate, and the air suction pipe is located in the air duct cavity, an air filter port is provided on one side surface of the base plate, and an exhaust fan is fixedly installed on the internal top plate of the box body.

[0007] Preferably, the bottom of the transformer is in contact with the backing plate, and the bottom surface of the heat dissipation aluminum plate is located in the air duct cavity.

[0008] Preferably, filters are provided at the inclined notches on the left and right sides of the box cover.

[0009] Preferably, the interior of the box is divided into two upper and lower cavities by a bottom plate, and the upper and lower cavities are connected through an air filter port of the bottom plate. Beneficial Effects

[0010] The utility model provides a heat dissipation box type transformer, which has the following beneficial effects:

[0011] In this solution, the heat at the transformer in the box is drawn upward by the exhaust fan and dissipated from the slot. During the air flow, the heat dissipation aluminum plate can be dissipated. Combined with the collected rainwater, it circulates in the box to play a good heat dissipation effect. When the external air enters the box from the slot and the air inlet, the dust can be filtered out, and the dust at the slot will fall on the top plate, while most of the dust in the bottom air duct cavity will be on the bottom surface of the air duct cavity, and some of the dust will also be filtered at the filter at the filter outlet. The entire box-type transformer structure has a good dust-proof and heat-dissipating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a connection structure diagram of the bottom plate and the backing plate of the utility model;

[0014] In the figure: 1. Transformer; 2. Box body; 3. Box cover; 4. Notch; 5. Rainwater collection trough; 6. Circulation pipe; 7. Bottom plate; 8. Pad; 9. Graphite heat conductive sheet; 10. Heat dissipation aluminum plate; 11. Circulation pump; 12. One-way valve; 13. Air duct cavity; 14. Air inlet; 15. Filter; 16. Suction pipe; 17. Air filter outlet; 18. Exhaust fan; 19. Top plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-2The utility model provides a technical solution: a heat dissipation box transformer, comprising a transformer 1 and a box body 2, the transformer 1 is built inside the box body 2, a box cover 3 is arranged on the top of the box body 2, and a plurality of symmetrical notches 4 are arranged on the left and right inclined surfaces of the box cover 3 from high to low, a top plate 19 is fixed on the inner top surface of the box body 2, a rainwater collecting trough 5 is fixedly installed on the inner top plate 19 of the box body 2, a circulation pipe 6 is connected to the bottom of the rainwater collecting trough 5, a bottom plate 7 is installed on the inner bottom surface of the box body 2, a plurality of parallel pads 8 are arranged on the surface of the bottom plate 7, a graphite heat conducting sheet 9 is coated on the pad 8, a heat dissipation aluminum plate 10 is arranged on the bottom of the bottom plate 7, and the heat dissipation aluminum plate 10 is in contact with the left and right ends of the bottom surface of the graphite heat conducting sheet 9;

[0017] A circulation pump 11 is fixedly installed inside the box body 2, a circulation pipe 6 is built into the inner wall of the box body 2, and the top end of the circulation pipe 6 passes through the internal top plate 19 of the box body 2, and the bottom end of the circulation pipe 6 is fixed in the heat dissipation aluminum plate 10 on the bottom surface of the bottom plate 7, and the heat dissipation aluminum plate 10 is arranged along the horizontal axis of the bottom plate 7. The circulation pump 11 is connected to the circulation pipe 6, and a one-way valve 12 is arranged on one side of the box body 2, and the one-way valve 12 is connected to the circulation pipe 6;

[0018] An air duct cavity 13 is provided at the bottom of the bottom plate 7, an air inlet 14 is provided on the outer side surface of the bottom of the box body 2, a filter screen 15 is provided between the air inlet 14 and the air duct cavity 13, an air suction pipe 16 is installed at the bottom of the bottom plate 7, and the air suction pipe 16 is located in the air duct cavity 13, an air filter port 17 is provided on one side surface of the bottom plate 7, and an exhaust fan 18 is fixedly installed on the internal top plate 19 of the box body 2.

[0019] The bottom of the transformer 1 is in contact with the pad 8, and the bottom surface of the heat dissipation aluminum plate 10 is located in the air duct cavity 13, so that the heat dissipation aluminum plate 10 can transfer the heat in the upper cavity of the box body 2 from the graphite heat conductive sheet 9 to the heat dissipation aluminum plate 10, and when the external air is sucked in from the air inlet 14, the heat on the heat dissipation aluminum plate 10 is dissipated in the air duct cavity 13.

[0020] Filters are provided at the inclined notches 4 on the left and right sides of the box cover 3 to prevent dust in the outside air from entering the box body 2 and not affecting rainwater from falling from the notches 4 into the rainwater collection tank 5.

[0021] The interior of the box body 2 is divided into two upper and lower cavities by the bottom plate 7, and the upper and lower cavities are connected through the air filter port 17 of the bottom plate 7. The transformer 1 is located as a whole in the upper cavity in the box body 2. There is a top plate 19 as a partition between the upper cavity and the box cover 3. The transformer 1 is in an independent space in the upper cavity in the box body 2, which has a good dust-proof effect.

[0022] The circulation pipe 6 is a pipe structure formed by connecting multiple flow guide pipes in parallel at the heat dissipation aluminum plate 10, and both ends are connected to the main pipe. The circulation pipe 6 at the inner wall of the box body 2 and the top plate 19 is a flat hollow pipe structure for increasing the heat dissipation area of ​​the contact surface between the bottom surface of the transformer 1 and the bottom plate 7. The heat at the bottom of the transformer 1 contacts the graphite heat sinks 9 on the multiple pads 8 and then is transferred to the heat dissipation aluminum plate 10. The circulation pipe 6 is a combination of multiple parallel pipes at the heat dissipation aluminum plate 10, and both ends are connected to the main pipe. The end of the main pipe is connected to the flat hollow pipe, that is, the entire circulation pipe 6 is divided into a flat hollow pipe and a parallel pipe structure formed by combining multiple flow guide pipes and the main pipes at both ends, such as Figure 2 As shown, the left side is a plurality of parallel pipe structures and a main pipe, and the right side is a flat hollow pipe structure for being built into the inner wall of the box body 2.

[0023] Working principle:

[0024] In this solution, a box cover 3 is installed on the top of the box body 2, a top plate 19 is fixed on the inner top surface of the box body 2, the exhaust fan 18 and the rainwater collection tank 5 are fixed on the top plate 19, a bottom plate 7 is installed inside the box body 2, and the transformer 1 is located in the upper cavity between the top plate 19 and the bottom plate 7;

[0025] An air duct cavity 13 is provided at the bottom of the bottom plate 7. The exhaust fan 18 fixed on the top plate works after being connected to an external power supply, and air is drawn upward from the air duct cavity 13 of the lower layer inside the box body 2. The external air enters from the air inlet 14 at the outer side of the bottom of the box body 2, and enters the cavity of the upper layer of the bottom plate 7 from the air filter port 17 along the air suction pipe 16 in the air duct cavity 13. The heat generated by the transformer 1 is in the upper cavity at the top of the bottom plate 7. Part of the heat is transferred from the graphite heat conductive sheet 9 at the bottom to the heat dissipation aluminum plate 10. The bottom of the heat dissipation aluminum plate 10 is located in the air duct cavity 13. Therefore, when the external air passes through the air duct cavity 13, it can play a role in dissipating heat for the heat dissipation aluminum plate 10. The airflow passes through the air duct 16 and the air filter port 17 from the air duct cavity 13 at the bottom and enters the upper cavity. Most of the heat in the upper cavity is drawn upward by the exhaust fan 18, and the heat is discharged from the notch 4 of the top box cover 3.

[0026] Rainwater falls from the notch 4 into the rainwater collecting trough 5 and is connected to the circulation pipe 6. The circulation pump 11 works to make the rainwater circulate in the circulation pipe 6. A part of the circulation pipe 6 is located in the inner wall of the box body 2, a part is in the top plate 19, and a part is in the heat dissipation aluminum plate 10, so that the outer shell of the box body 2 can dissipate heat and the heat at the bottom base plate 7 can be dissipated. Excess rainwater in the circulation pipe 6 can be discharged from the box body 2 through the one-way valve 12.

[0027] In the entire transformer box structure, the heat at the transformer 1 is drawn upward by the exhaust fan 18 and dissipated from the slot 4, and the collected rainwater circulates in the box 2 to achieve a heat dissipation effect. The external air can filter out dust when entering the box 2 from the slot 4 and the air inlet 14, and the dust at the slot 4 will fall on the top plate 19, while most of the dust in the bottom air duct cavity 13 will be on the bottom surface of the air duct cavity 13, and some of the dust will also be filtered at the filter at the filter outlet 17, which has a good dust-proof and heat-dissipating effect.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation box-type transformer, comprising a transformer (1) and a box (2), characterized in that: The transformer (1) is built into a box body (2); a box cover (3) is arranged on the top of the box body (2); a plurality of symmetrical notches (4) are arranged on the left and right inclined surfaces of the box cover (3) from high to low; a top plate (19) is fixed to the top surface of the box body (2); a rainwater collection trough (5) is fixedly installed on the top plate (19) of the box body (2); a circulation pipe (6) is connected to the bottom of the rainwater collection trough (5); a bottom plate (7) is installed on the bottom surface of the box body (2); a plurality of parallel pads (8) are arranged on the surface of the bottom plate (7); a graphite heat conducting sheet (9) is coated on the pads (8); a heat dissipation aluminum plate (10) is arranged at the bottom of the bottom plate (7); and the heat dissipation aluminum plate (10) and the bottom surfaces of the graphite heat conducting sheet (9) are in contact with each other at left and right ends; A circulation pump (11) is fixedly installed inside the box (2), the circulation pipe (6) is built into the inner wall of the box (2), and the top end of the circulation pipe (6) passes through the internal top plate (19) of the box (2), and the bottom end of the circulation pipe (6) is fixed to the heat dissipation aluminum plate (10) on the bottom surface of the bottom plate (7), and the heat dissipation aluminum plate (10) is arranged along the transverse axis of the bottom plate (7), the circulation pump (11) and the circulation pipe (6) are connected, and a one-way valve (12) is arranged on one side of the box (2), and the one-way valve (12) and the circulation pipe (6) are connected; An air duct cavity (13) is provided at the bottom of the bottom plate (7), an air inlet (14) is provided on the outer side surface of the bottom of the box body (2), a filter screen (15) is provided between the air inlet (14) and the air duct cavity (13), an air suction pipe (16) is installed at the bottom of the bottom plate (7), and the air suction pipe (16) is located in the air duct cavity (13), an air filter port (17) is provided on a side surface of the bottom plate (7), and an exhaust fan (18) is fixedly installed on the internal top plate (19) of the box body (2).

2. A heat dissipation box type transformer according to claim 1, characterized in that: The bottom of the transformer (1) is in contact with the pad (8), and the bottom surface of the heat dissipation aluminum plate (10) is located in the air duct cavity (13).

3. The heat dissipation box type transformer according to claim 1, characterized in that: Filter screens are arranged at the inclined notches (4) on the left and right sides of the box cover (3).

4. The heat dissipation box type transformer according to claim 1, characterized in that: The interior of the box body (2) is divided into two upper and lower cavities by a bottom plate (7), and the upper and lower cavities are connected via an air filter port (17) of the bottom plate (7).

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