Heat dissipation structure of transformer

Abstract

The utility model belongs to the technical field of transformers, and provides a heat dissipation structure of a transformer, which comprises a heat dissipation fin group fixedly arranged on the outer side of a transformer main body; and the ventilation equipment is hung below the upper side plate of the transformer main body, is positioned above the radiating fin groups and is used for generating wind power to enhance air flow among the radiating fin groups. Wind power is generated through the arranged ventilation equipment, air flow between the cooling fin sets can be enhanced in an active mode, the heat exchange speed is increased, and therefore the cooling efficiency of the cooling fin sets is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, concretely relates to a heat dissipation structure of transformer. BACKGROUND

[0002] The transformer is a kind of electrical equipment for changing alternating voltage, it is mainly through electromagnetic induction principle, using the turns ratio of primary coil and secondary coil to realize the increase or decrease of voltage.In this process, the changing magnetic field generates heat in the coil, causing the temperature inside the transformer to rise, and then affecting the reliability and safety of the working performance of the transformer, so it needs to install heat sink to dissipate heat.

[0003] At present, the heat sink can only passively accept the natural convection of external air to take away heat to realize heat dissipation, and the heat dissipation efficiency is low;In addition, the heat sink needs to be exposed to the air to fully contact with the external air, which is easy to make the dust and flying fibers in the air adhere to it, and then reduce the heat conduction performance of the heat sink. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a heat dissipation structure of transformer to solve the problem that the existing heat sink can only passively accept the natural convection of external air to take away heat to realize heat dissipation, and the heat dissipation efficiency is low;In addition, the heat sink needs to be exposed to the air to fully contact with the external air, which is easy to make the dust and flying fibers in the air adhere to it, and then reduce the heat conduction performance of the heat sink.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A heat dissipation structure of transformer, comprising:

[0007] A heat sink group is fixedly installed on the outside of the transformer body; and

[0008] Ventilation equipment is hoisted below the upper edge plate of the transformer body and located above the heat sink group, for generating wind power to enhance the air flow between the heat sink group.

[0009] In one embodiment of the present application, the ventilation equipment is an electric fan.

[0010] In one embodiment of the present application, it further includes cleaning assembly;

[0011] The cleaning assembly is in transmission connection with the ventilation equipment, for cleaning the dust and flying fibers adhered to the heat sink group.

[0012] In one embodiment of the present application, the cleaning assembly includes transmission unit and cleaning unit connected with each other;

[0013] The transmission unit is used to transmit the power of the ventilation equipment to the cleaning unit;

[0014] The cleaning unit can move back and forth between the heat sink assemblies to clean the dust and lint adhering to the heat sink assemblies.

[0015] In one embodiment disclosed in this application, the transmission unit includes a first pulley, a synchronous belt, and a second pulley that are sequentially connected in a transmission relationship. The first pulley is fixedly connected to the motor output shaft of the ventilation equipment, and the second pulley is fixedly connected to a transmission rod. The transmission rod is rotatably connected to the lower plate of the transformer body through a bearing.

[0016] The cleaning unit is connected to the transmission rod via a movable seat, which can reciprocate on the transmission rod.

[0017] In one embodiment disclosed in this application, the cleaning unit includes a cleaning roller with an elastic brush plate;

[0018] The cleaning roller is connected to the movable seat and is located between the heat sinks, with its elastic brush plate in contact with the side of the heat sink of the heat sink assembly.

[0019] In one embodiment disclosed in this application, the cleaning roller is rotatably connected to the movable seat;

[0020] A gear is fixedly connected to the end of the cleaning roller away from the movable seat;

[0021] The gear meshes with a rack;

[0022] The rack is fixed between the upper and lower side plates of the transformer body and located between the heat sinks of the heat sink assembly.

[0023] In one embodiment disclosed in this application, multiple elastic brush plates are evenly distributed around the axial circumference of the cleaning roller.

[0024] In one embodiment disclosed in this application, a reciprocating helical groove is formed on the circumferential surface of the transmission rod;

[0025] The movable seat has a through hole with a diameter that matches the transmission rod. The through hole is radially connected to a sliding groove. A sliding rod is installed in the sliding groove. One end of the sliding rod extends out of the sliding groove and is connected to a rocking ball. The rocking ball is placed in the through hole and is slidably connected to the reciprocating spiral groove to form a spiral reciprocating mechanism.

[0026] A compressed spring is installed between the end of the slide bar away from the rocker ball and the end of the slide groove away from the through hole.

[0027] In one embodiment of the present application, the ventilation devices are arranged at equal intervals, and one of the transmission units corresponds to one ventilation device;

[0028] The movable seat is in a strip structure, and is connected with the transmission rods of all the transmission units;

[0029] The cleaning units are arranged at equal intervals, and are arranged between the fins of the fin groups in a one-to-one manner.

[0030] Compared with the prior art, the present application has the following beneficial effects:

[0031] 1. The ventilation devices generate wind force, which can actively enhance the air flow between the fin groups, improve the heat exchange speed, and effectively improve the heat dissipation efficiency of the fin groups.

[0032] 2. The cleaning units of the cleaning assembly can clean the dust and flying fibers attached to the fin groups, thereby restoring and ensuring the heat conduction performance and further improving the heat dissipation efficiency of the fin groups. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the transformer of the present application;

[0035] Figure 2 It is a schematic diagram of the three-dimensional structure of the present application;

[0036] Figure 3 It is Figure 2 It is a schematic diagram of the enlarged structure of the local part A;

[0037] Figure 4 It is Figure 2 It is a schematic diagram of the enlarged structure of the local part B;

[0038] Figure 5 It is a schematic diagram of the three-dimensional structure of the movable seat after being cut. DETAILED DESCRIPTION

[0039] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0045] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0046] See Figures 1-5 As shown, this utility model provides a heat dissipation structure for a transformer, comprising:

[0047] The heat sink assembly 200 is fixedly installed on the outside of the transformer body 100; and

[0048] Ventilation equipment 300 is suspended below the upper side plate of the transformer body 100 and above the heat sink assembly 200 to generate wind to enhance airflow between the heat sink assemblies 200.

[0049] In operation, through heat exchange with the transformer body 100, the heat sink assembly 200 heats up the cold air, turning it into hot air. The less dense hot air rises along the heat sink assembly 200. Simultaneously, the ventilation equipment 300 activates, generating downward airflow that carries the denser cold air downwards. This enhances airflow between the heat sink assemblies 200 and allows the hot air to converge, rapidly carrying away heat and cooling the transformer body 100. In other words, the ventilation equipment 300 actively enhances airflow between the heat sink assemblies 200, increasing the heat exchange rate and effectively improving the heat dissipation efficiency of the heat sink assembly 200.

[0050] In this embodiment, the ventilation device 300 is preferably an electric fan.

[0051] The aforementioned transformer heat dissipation structure also includes a cleaning assembly 400, which is connected to the ventilation equipment 300 and used to clean dust and lint adhering to the heat sink assembly 200. Specifically, the cleaning assembly 400 includes a transmission unit 410 and a cleaning unit 420 connected to each other. The transmission unit 410 transmits power from the ventilation equipment 300 to the cleaning unit 420, which can reciprocate between the heat sink assemblies 200 to clean the dust and lint adhering to them. Through the cleaning unit 420 within the cleaning assembly 400, dust and lint adhering to the heat sink assembly 200 can be cleaned, thereby restoring and ensuring its heat conduction performance and further improving the heat dissipation efficiency of the heat sink assembly 200.

[0052] See Figure 2 and Figure 3As shown, the transmission unit 410 includes a first pulley 411, a synchronous belt 412, and a second pulley 413 connected in sequence. The first pulley 411 is fixedly connected to the output shaft of the motor of the ventilation equipment 300, and the second pulley 413 is fixedly connected to a transmission rod 414. The transmission rod 414 is rotatably connected to the lower plate of the transformer body 100 through bearings. The cleaning unit 420 is connected to the transmission rod 414 through a movable seat 430, which can reciprocate on the transmission rod 414. When the ventilation equipment 300 is started, its motor drives the transmission rod 414 to rotate through the first pulley 411, the synchronous belt 412, and the second pulley 413, thereby causing the movable seat 430 to reciprocate on the transmission rod 414. The cleaning unit 420 follows the reciprocating movement of the movable seat 430, thereby cleaning the dust and lint adhering to the heat sink assembly 200.

[0053] See Figure 2 and Figure 4 As shown, the cleaning unit 420 includes a cleaning roller 421 with an elastic brush plate. The cleaning roller 421 is connected to the movable seat 430 and disposed between the heat sink assemblies 200. Its elastic brush plate is in contact with the side of the heat sink fins of the heat sink assembly 200. The movable seat 430 moves back and forth, causing the cleaning roller 421 to move back and forth as well, thereby causing the elastic brush plate on the cleaning roller 421 to scrape the side of the heat sink fins of the heat sink assembly 200, thereby removing the dust and lint adhering to the heat sink assembly 200, ensuring its heat conduction performance and heat dissipation efficiency.

[0054] To enhance the cleaning effect of the elastic brush plate on the cleaning roller 421 on dust and lint adhering to the heat sink assembly 200, the cleaning roller 421 is rotatably connected to the movable seat 430, and a gear 422 is fixedly connected to the end of the cleaning roller 421 away from the movable seat 430. The gear 422 meshes with a rack 423, which is fixed between the upper and lower side plates of the transformer body 100 and located between the heat sinks of the heat sink assembly 200. Thus, when the movable seat 430 reciprocates, the cleaning roller 421 rotates due to the meshing of the gear 422 and the rack 423, thereby driving the elastic brush plate to rotate. The rotating elastic brush plate can powerfully clean the dust and lint adhering to the heat sink assembly 200.

[0055] In this embodiment, multiple elastic brush plates are evenly distributed around the axial circumference of the cleaning roller 421.

[0056] See Figure 3 As shown, a reciprocating helical groove 415 is formed on the circumferential surface of the transmission rod 414; see also Figure 5As shown, the movable seat 430 has a through hole 431 with a diameter adapted to the transmission rod 414. The through hole 431 is radially connected to a sliding groove 432. A sliding rod 433 is installed in the sliding groove 432. One end of the sliding rod 433 extends out of the sliding groove 432 and is connected to a rocker ball 434. The rocker ball 434 is placed in the through hole 431 and is slidably connected to the reciprocating spiral groove 415 to form a spiral reciprocating mechanism. A compressed spring 435 is installed between the end of the sliding rod 433 away from the rocker ball 434 and the end of the sliding groove 432 away from the through hole 431. When the transmission rod 414 rotates, the rocker ball 434 can always slide in the reciprocating spiral groove 415 by the restoring force of the compressed spring 435. Thus, the sliding rod 433 drives the movable seat 430 to move linearly back and forth. The cleaning roller 421 moves back and forth as well, and the dust and lint attached to the heat sink assembly 200 are continuously cleaned by the scraping action of the elastic brush plate.

[0057] See Figure 2 As shown, in this embodiment, three ventilation devices 300 are arranged at equal intervals, and the transmission units 410 correspond one-to-one with them; the movable seat 430 has a strip-shaped structure and is connected to the transmission rods 414 of all transmission units 410; several cleaning units 420 are arranged at equal intervals and are located between the heat sinks of the heat sink assembly 200 in a one-to-one manner.

[0058] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A heat dissipation structure for a transformer, characterized in that, include: The heat sink assembly is fixedly installed on the outside of the transformer body; and A ventilation device is suspended below the upper side plate of the transformer body and above the heat sink assembly to generate wind to enhance airflow between the heat sink assemblies.

2. The heat dissipation structure of the transformer according to claim 1, characterized in that, The ventilation equipment is an electric fan.

3. The heat dissipation structure of the transformer according to claim 1 or 2, characterized in that: It also includes cleaning components; The cleaning component is connected to the ventilation equipment and is used to clean the dust and lint adhering to the heat sink assembly.

4. The heat dissipation structure of the transformer according to claim 3, characterized in that: The cleaning assembly includes a transmission unit and a cleaning unit that are connected to each other. The transmission unit is used to transmit the power of the ventilation equipment to the cleaning unit; The cleaning unit can move back and forth between the heat sink assemblies to clean the dust and lint adhering to the heat sink assemblies.

5. The heat dissipation structure of the transformer according to claim 4, characterized in that: The transmission unit includes a first pulley, a synchronous belt, and a second pulley that are sequentially connected in a transmission relationship. The first pulley is fixedly connected to the motor output shaft of the ventilation equipment, and the second pulley is fixedly connected to a transmission rod. The transmission rod is rotatably connected to the lower plate of the transformer body through a bearing. The cleaning unit is connected to the transmission rod via a movable seat, which can reciprocate on the transmission rod.

6. The heat dissipation structure of the transformer according to claim 5, characterized in that: The cleaning unit includes a cleaning roller with a flexible brush plate; The cleaning roller is connected to the movable seat and is located between the heat sinks, with its elastic brush plate in contact with the side of the heat sink of the heat sink assembly.

7. The heat dissipation structure of the transformer according to claim 6, characterized in that: The cleaning roller is rotatably connected to the movable seat; A gear is fixedly connected to the end of the cleaning roller away from the movable seat; The gear meshes with a rack; The rack is fixed between the upper and lower side plates of the transformer body and located between the heat sinks of the heat sink assembly.

8. The heat dissipation structure of the transformer according to claim 6 or 7, characterized in that, The elastic brush plates are evenly distributed around the axial circumference of the cleaning roller in multiple pieces.

9. The heat dissipation structure of the transformer according to any one of claims 5 to 7, characterized in that: The circumferential surface of the transmission rod is provided with a reciprocating spiral groove; The movable seat has a through hole with a diameter that matches the transmission rod. The through hole is radially connected to a sliding groove. A sliding rod is installed in the sliding groove. One end of the sliding rod extends out of the sliding groove and is connected to a rocking ball. The rocking ball is placed in the through hole and is slidably connected to the reciprocating spiral groove to form a spiral reciprocating mechanism. A compressed spring is installed between the end of the slide bar away from the rocker ball and the end of the slide groove away from the through hole.

10. The heat dissipation structure of the transformer according to claim 9, characterized in that: The ventilation equipment is arranged in three equally spaced units, and the transmission unit corresponds to each of them. The movable seat has a strip-shaped structure and is connected to the transmission rods of all transmission units; The cleaning units are arranged at equal intervals, and are positioned one-to-one between the heat sinks of the heat sink assembly.

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