CN112614658B

CN112614658B - Transformer cooling device

Info

Publication number: CN112614658B
Application number: CN202011456592.XA
Authority: CN
Inventors: 倪晓伟
Original assignee: Wuxi Huili Special Power Supply Co ltd
Current assignee: Wuxi Huili Special Power Supply Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-06-24
Anticipated expiration: 2040-12-10
Also published as: CN112614658A

Abstract

The invention provides a transformer cooling device, which relates to the field of transformers and comprises a fan and a flow increasing assembly, wherein the flow increasing assembly is bolted at the front end of the fan through screws, a diffusion assembly is inserted into the circle center of the flow increasing assembly, the diffusion assembly comprises an adjusting pipe and a diffusion cover, the adjusting pipe is arranged on the rear side of the diffusion cover, and the adjusting pipe and the diffusion cover are connected in a front-back manner; the diffusion cover is the loudspeaker form, and the surface of diffusion cover has the slot of four places with annular distribution form partition cutting, is the curved surface form based on the diffusion cover, and then blows the in-process at the air current, via the curved surface transition, comes to carry out diffusion processing to the air current, and after the diffusion processing, the range of blowing of fan is increased by a wide margin for the transformer can contact more drum-blown air currents at the radiating process, and then reaches better radiating effect more.

Description

Transformer cooling device

Technical Field

The invention relates to the field of transformers, in particular to a transformer cooling device.

Background

The transformer is a static electrical equipment used for transforming alternating voltage and current and transmitting alternating current energy, which realizes electric energy transmission according to the principle of electromagnetic induction and is a device used for changing the alternating voltage with a certain value into another voltage with the same frequency or a plurality of voltages with different values, namely, when a primary winding is electrified with alternating current, alternating magnetic flux is generated, the alternating magnetic flux induces alternating electromotive force in a secondary winding through the magnetic conduction function of an iron core, the level of the secondary induced electromotive force is related to the number of turns of the primary winding, namely, the voltage is in direct proportion to the number of turns; the transformer can be classified into a power transformer, a test transformer, an instrument transformer and a transformer for special purposes.

When transformer transformation load is big, need carry out supplementary cooling to the transformer through external heat sink, current external heat sink when blowing air current to transformer surface, its blowing scope is difficult to adjust according to the actual cooling of transformer needs, and the limitation of use is great.

Disclosure of Invention

The invention aims to provide a transformer cooling device to solve the technical problem.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a transformer heat sink, includes fan and increases a class subassembly, its characterized in that: the front end of the fan is bolted with a flow increasing assembly through a screw, a diffusion assembly is inserted into the circle center of the flow increasing assembly and comprises an adjusting pipe and a diffusion cover, the adjusting pipe is arranged on the rear side of the diffusion cover, and the adjusting pipe and the diffusion cover are connected in a front-back manner; the diffusion cover is horn-shaped, and the surface of the diffusion cover is equally divided into four groove positions in an annular distribution shape.

Preferably, the annular outer wall of the adjusting pipe is etched with threads, and the annular inner wall of the adjusting pipe is provided with a handle.

Preferably, the flow increasing assembly comprises a sleeve, a screen, an annular frame and flow increasing channels, the annular frame is fixed at the front end of the fan, and a plurality of flow increasing channels are uniformly penetrated through the annular wall body of the annular frame in an annular distribution shape; a screen is arranged at the joint of the annular frame and the fan and covers the port of the annular frame; the center of the screen is vertically inserted with a sleeve, and the inner wall of the sleeve is etched with threads.

Preferably, the flow increasing channel is an oblique channel, the air inlet of the flow increasing channel is close to the rear end edge of the annular frame, and the air outlet of the flow increasing channel is close to the front end edge of the annular frame.

Preferably, the sleeve is retracted compared to the annular frame, and the sleeve is disposed in parallel with respect to the annular frame.

Preferably, the bottom end of the fan is bolted with a support frame through screws, and bolt hole sites are equally penetrated through the left wall body and the right wall body of the support frame.

The invention has the beneficial effects that:

1. the invention diffuses the air flow blown by the fan based on the diffusion component, namely, in the using process, the insertion depth of the adjusting pipe relative to the flow increasing component is adjusted, so that the shape of the diffusion cover relative to the flow increasing component is changed, namely, the insertion amount of the diffusion cover is in negative correlation with the diffusion amount of the air flow.

2. According to the invention, the diffusion cover is in a curved surface form, so that the air flow is subjected to diffusion treatment through curved surface transition in the air flow blowing process, and after the diffusion treatment, the blowing range of the fan is greatly increased, so that the transformer can contact more blown air flows in the heat dissipation process, and a faster and better heat dissipation effect is achieved.

3. According to the invention, the flow increasing channel is arranged at the annular wall body of the annular frame, so that more air flows are blown into the annular frame based on the negative pressure applied to the relatively static area by the high-flow-rate area in the air flow blowing process, and the blowing force of the fan is further improved.

Drawings

FIG. 1 is a schematic structural diagram of a transformer cooling device according to the present invention;

FIG. 2 is a schematic view of a combination structure of a diffusion assembly and a flow increasing assembly according to the present invention;

FIG. 3 is a schematic structural view of a flow increasing assembly according to the present invention;

FIG. 4 is a schematic structural view of a flow-increasing channel according to the present invention;

FIG. 5 is a schematic view of a split construction of the diffuser assembly of the present invention;

reference numerals: 1. a fan; 2. a flow increasing assembly; 3. a diffusion member; 4. a support frame; 21. a sleeve; 22. screening a screen; 23. an annular frame; 24. a flow increasing channel; 31. an adjusting tube; 32. a diffusion cover.

Detailed Description

The present invention will be further described with reference to the following detailed description and the accompanying drawings, which are provided for the purpose of illustrating the invention and are not intended to limit the invention to the particular embodiments disclosed. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention.

Specific embodiments of the present invention are described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1, 2 and 5, a transformer cooling device comprises a fan 1 and a flow increasing assembly 2, wherein the flow increasing assembly 2 is bolted at the front end of the fan 1 through screws, a diffusion assembly 3 is inserted into the circle center of the flow increasing assembly 2, the diffusion assembly 3 comprises an adjusting pipe 31 and a diffusion cover 32, the adjusting pipe 31 is arranged at the rear side of the diffusion cover 32, and the adjusting pipe 31 and the diffusion cover 32 are connected in a front-back manner; the diffusion cover 32 is trumpet-shaped, and four groove positions are equally cut on the surface of the diffusion cover 32 in an annular distribution shape; the annular outer wall of the adjusting pipe 31 is etched with threads, and the annular inner wall of the adjusting pipe 31 is provided with a handle.

In this embodiment, the airflow blown by the fan 1 is diffused based on the diffusion component 3, that is, during use, the insertion depth of the adjusting pipe 31 relative to the flow increasing component 2 is adjusted, so that the shape of the diffusion cover 32 relative to the flow increasing component 2 changes, that is, the insertion amount of the diffusion cover 32 is in negative correlation with the diffusion amount of the airflow.

In this implementation, based on diffusion cover 32 is the curved surface form, and then in the air current blows the in-process, via the curved surface transition, comes to carry out diffusion processing to the air current, and after the diffusion processing, the range of blowing of fan 1 is increased by a wide margin for the transformer can contact more blast air current in the radiating process, and then reaches faster better radiating effect.

Example 2

As shown in fig. 1-4, a transformer cooling device, a flow increasing assembly 2 includes a casing 21, a screen 22, an annular frame 23 and flow increasing channels 24, the annular frame 23 is fixed at the front end of a fan 1, and a plurality of flow increasing channels 24 are equally penetrated in an annular distribution shape at the annular wall body of the annular frame 23; a screen 22 is arranged at the joint of the annular frame 23 and the fan 1, and the screen 22 covers the port of the annular frame 23; a sleeve 21 is vertically inserted in the center of the screen 22, and threads are etched on the inner wall of the sleeve 21;

in this embodiment, the flow increasing channel 24 is arranged on the annular wall body of the annular frame 23, so that in the air blowing process, more air flows are blown into the annular frame 23 based on the negative pressure applied to the relatively static area in the high flow velocity area, and the blowing force of the fan 1 is improved.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a transformer heat sink, includes fan (1) and increases a class subassembly (2), its characterized in that: the front end of the fan (1) is bolted with a flow increasing assembly (2) through a screw, a diffusion assembly (3) is inserted into the circle center of the flow increasing assembly (2), the diffusion assembly (3) comprises an adjusting pipe (31) and a diffusion cover (32), the adjusting pipe (31) is arranged on the rear side of the diffusion cover (32), and the adjusting pipe (31) and the diffusion cover (32) are connected in a front-back manner; the diffusion cover (32) is horn-shaped, and four groove positions are equally cut on the surface of the diffusion cover (32) in an annular distribution shape;

threads are etched on the annular outer wall of the adjusting pipe (31), and a handle is arranged on the annular inner wall of the adjusting pipe (31);

the flow increasing assembly (2) comprises a sleeve (21), a screen (22), an annular frame (23) and flow increasing channels (24), the annular frame (23) is fixed at the front end of the fan (1), and a plurality of flow increasing channels (24) are uniformly penetrated through the annular wall body of the annular frame (23) in an annular distribution shape; a screen (22) is arranged at the joint of the annular frame (23) and the fan (1), and the screen (22) covers a port of the annular frame (23); the center of the screen (22) is vertically inserted with a sleeve (21), and the inner wall of the sleeve (21) is etched with threads.

2. The transformer cooling device according to claim 1, wherein: the flow increasing channel (24) is an inclined channel, an air inlet of the flow increasing channel (24) is close to the edge of the rear end of the annular frame (23), and an air outlet of the flow increasing channel (24) is close to the edge of the front end of the annular frame (23).

3. The transformer cooling device according to claim 1, wherein: the sleeve (21) is retracted compared to the annular frame (23), and the sleeve (21) is arranged in parallel relative to the annular frame (23).

4. The transformer cooling device according to claim 1, wherein: the bottom end of the fan (1) is bolted with a supporting frame (4) through screws, and bolt hole positions are arranged on the left wall body and the right wall body of the supporting frame (4) in an evenly-distributed penetrating manner.