CN218866860U - Transformer - Google Patents

Abstract

The utility model discloses a transformer, including the major structure, be provided with in the major structure and hold the cavity, the inside storage box that is provided with of major structure, the major structure outside is provided with the heat transfer coiled pipe, the continuous slope of heat transfer coiled pipe sets up, the heat transfer coiled pipe has the first end and the second end of keeping away from each other, be in the connected state between the first end of heat transfer coiled pipe and the storage box, the second end detachable fixedly connected with safety helmet of heat transfer coiled pipe, the safety helmet lateral wall is opened there is the installing port, fixedly connected with closed membrane in the installing port, be provided with the voltage limiting component in the heat transfer coiled pipe, the voltage limiting component is located the position that is close to heat transfer coiled pipe second end. The utility model discloses it has improved the radiating effect of embedment transformer to safe and reliable.

Description

Transformer

Technical Field

The utility model relates to a potential device technical field especially relates to a transformer.

Background

The safety transformer made of epoxy resin materials in an encapsulating mode is a representative of a novel energy-saving transformer, the main body structure of the safety transformer is integrally formed, the safety transformer has a reliable sealing and heat-insulating effect, the epoxy resin materials have excellent characteristics of fire resistance and flame retardance, and the safety transformer is stable and reliable and is widely applied to the market.

The transformer is integrally formed, so that the transformer is good in sealing performance and free of a heat exchange window, the integral heat dissipation performance is poor, the use of equipment is influenced, heat dissipation lines are added on the surface of the traditional transformer, heat dissipation is achieved by adding heat dissipation fins, and the action mode of the traditional transformer is limited; some other transformers can be internally provided with a water-cooling evaporation heat dissipation system, but the conventional water-cooling evaporation heat dissipation system has a large volume and is not suitable for transformers with small types, the water-cooling evaporation heat dissipation system needs to continuously realize circulation of cooling water, and more sealing facilities need to be added to avoid liquid leakage, so that the water-cooling evaporation heat dissipation system is difficult to realize on small encapsulated transformers; therefore, how to safely and stably improve the heat dissipation effect of the small-sized filling transformer is a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the transformer that provides, it has improved the radiating effect of embedment transformer to safe and reliable.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a transformer, includes the major structure, be provided with in the major structure and hold the cavity, the inside storage box that is provided with of major structure, the major structure outside is provided with the heat transfer coiled pipe, the continuous slope of heat transfer coiled pipe sets up, the heat transfer coiled pipe has the first end and the second end of keeping away from each other, be in the connected state between the first end of heat transfer coiled pipe and the storage box, the second end detachable fixedly connected with safety helmet of heat transfer coiled pipe, the safety helmet lateral wall is opened there is the installing port, fixedly connected with sealing membrane in the installing port, be provided with the voltage limiting component in the heat transfer coiled pipe, the voltage limiting component is located the position that is close to heat transfer coiled pipe second end.

Preferably, the main body structure is integrally formed by potting.

Preferably, the outer wall of the main body structure is fixedly connected with heat exchange fins, and the heat exchange coiled pipe is attached to the heat exchange fins.

Preferably, the heat exchange fins are in multiple groups, and the multiple groups of heat exchange fins are arranged around the circumferential direction of the main body structure.

Preferably, the heat exchange fins are provided with accommodating grooves at the upper ends thereof, the outer wall of the heat exchange serpentine tube is fixedly connected with a heat exchange fixture block, and the size of the heat exchange fixture block is matched with the size of the accommodating grooves.

Preferably, the pressure limiting assembly comprises a pressure limiting sealing ring fixedly connected with the inner wall of the heat exchange coiled pipe, a pressure limiting sealing ball located on the outer side of the pressure limiting sealing ring is arranged in the heat exchange coiled pipe, and the pressure limiting sealing ball is elastically connected with the inner wall of the heat exchange coiled pipe through an elastic element.

Preferably, the inner wall of the safety helmet is provided with a first thread, and the outer wall of the second end of the heat exchange coiled pipe is provided with a second thread.

Compared with the prior art, the utility model, its beneficial effect does:

the heat generated by the working of the electronic element in the main body structure can be absorbed by the storage box through the arrangement of the storage box and the heat exchange coiled pipe, the heat is taken away by the volatilization of the low-boiling-point liquid in the storage box to realize efficient heat dissipation, and the gas generated by the volatilization can enter the heat exchange coiled pipe to exchange heat, so that the efficient cooling is realized; after the gas is cooled, the liquefied gas flows back through the inclined continuous heat exchange coiled pipe, and the automatic supplement of the low-boiling-point liquid can be realized, so that the cooling device does not need to supplement the liquid subsequently; the limit protection can be realized by arranging the safety cap, the sealing membrane, the pressure limiting component and other components, the gas can break through the pressure limiting component and the sealing membrane after the pressure in the heat exchange coiled pipe and the storage box exceeds the threshold value, let the gas outflow realize the pressure release, avoid the too big leakage that leads to of internal pressure, guarantee the normal work of equipment.

Drawings

Fig. 1 is a schematic perspective view of a transformer according to the present invention;

fig. 2 is a schematic view of a transformer according to the present invention;

fig. 3 is a schematic side view of a transformer according to the present invention;

fig. 4 is an internal schematic diagram of a transformer according to the present invention.

In the figure: 1. a body structure; 101. a housing chamber; 2. a storage box; 201. connecting a pipeline; 3. a voltage limiting component; 301. an elastic element; 302. a pressure limiting sealing ball; 303. a pressure limiting seal ring; 4. a safety helmet; 401. a sealing film; 5. heat exchange fins; 501. an accommodating recess; 502. a heat exchange clamping block; 6. a heat exchange coiled pipe.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from the embodiments described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not limited to the embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1-4, a transformer includes a main structure 1, and a containing cavity 101 for containing electronic components is provided in the main structure 1, wherein the main structure 1 is formed by integral potting of an epoxy resin material, the integral potting transformer has a good sealing effect, the internal environment is not affected by the outside, but the heat dissipation effect is poor compared with that of a conventional semi-closed transformer.

In order to improve the heat dissipation effect of the encapsulated transformer, a storage box 2 is arranged in a main body structure 1, low-boiling-point liquid is added in the storage box 2, after the main body structure 1 dissipates heat, the low-boiling-point liquid is heated and evaporated to absorb the heat, so that the temperature in the main body structure 1 can be effectively reduced, wherein the shape of the storage box 2 is adjusted according to the shape of electronic elements in the main body structure 1, and can be extended to each corner in a containing cavity 101 as much as possible; in order to improve the heat exchange efficiency of the low-boiling-point liquid, a heat exchange coiled pipe 6 is arranged outside a main body structure 1, the heat exchange coiled pipe 6 is continuously and obliquely arranged, the heat exchange coiled pipe 6 is provided with a first end and a second end which are far away from each other, the first end of the heat exchange coiled pipe 6 is communicated with a storage box 2, the first end of the heat exchange coiled pipe 6 is detachably and fixedly connected with the storage box 2 through a connecting pipeline 201, the later installation is facilitated, the low-boiling-point liquid is evaporated and then enters the heat exchange coiled pipe 6 to realize heat exchange, the low-boiling-point liquid is heated and evaporated and then turns into gas to enter the heat exchange coiled pipe 6 to exchange heat, the heat exchange coiled pipe 6 exchanges heat with the gas generated by volatilization, and the heat exchange efficiency can be improved; it should be noted here that, the low boiling point liquid is selected according to the actual working environment of the transformer, and for the occasion with low requirement on the use environment, the high concentration alcohol which is easy to obtain and cheap can be selected, so as to meet the requirement of low temperature heating volatilization.

In order to avoid damage caused by overhigh pressure in the heat exchange coiled pipe 6 and the storage box 2, a safety cap 4 is detachably and fixedly connected to the second end of the heat exchange coiled pipe 6, a mounting opening is formed in the side wall of the safety cap 4, a sealing film 401 is fixedly connected in the mounting opening, the sealing film 401 can be made of common rubber materials and is integrally sealed and formed, the sealing film is broken under overlarge pressure, gas can flow out, and pressure relief is achieved; the pressure limiting assembly 3 is arranged in the heat exchange coiled pipe 6, the pressure limiting assembly 3 is located at a position close to the second end of the heat exchange coiled pipe 6, the pressure limiting assembly 3 is in a closed state when the threshold pressure is low, the condition that low-boiling-point liquid is in contact with the closed membrane 401 to cause aging damage of the closed membrane is avoided, the closed membrane is in an open state after the pressure exceeding the threshold pressure, the pressure relief process is achieved, the pressure limiting assembly plays a protection role on the whole, the service life of the whole equipment can be prolonged, and long-term operation of the device is guaranteed.

For the efficiency that improves 6 heat exchanges of heat transfer coiled pipe, at 1 outer wall fixedly connected with heat exchange fin 5 of major structure, heat transfer coiled pipe 6 laminates mutually with heat exchange fin 5, wherein heat transfer coiled pipe 6 and heat exchange fin 5 all have the metal material that heat exchange efficiency is high to make, for example, the copper pipe, copper pipe metal conduit can realize that thermal conduction gives off, realize high-efficient heat dissipation, equally can set up heat exchange fin 5 and be the multiunit, 1 circumference setting around major structure is surrounded to multiunit heat exchange fin 5, heat exchange fin 5 that circumference was arranged can carry out the heat transfer to 6 many places of heat transfer coiled pipe, further improve the radiating efficiency.

In order to facilitate the installation and fixation of the heat exchange coiled pipe 6 and the heat exchange fins 5, the upper ends of the heat exchange fins 5 are provided with accommodating grooves 501, the outer wall of the heat exchange coiled pipe 6 is fixedly connected with heat exchange clamping blocks 502, the sizes of the heat exchange clamping blocks 502 are matched with the sizes of the accommodating grooves 501, the heat exchange clamping blocks 502 are also made of metal materials, the heat exchange clamping blocks 502 and the heat exchange coiled pipe 6 are installed at a preset position, then the heat exchange clamping blocks 502 and the heat exchange fins 5 are subjected to spot welding, and the connection stability is guaranteed.

As one of the preferable pressure limiting modes, the pressure limiting assembly 3 comprises a pressure limiting sealing ring 303 fixedly connected with the inner wall of the heat exchange coiled pipe 6, a pressure limiting sealing ball 302 positioned outside the pressure limiting sealing ring 303 is arranged in the heat exchange coiled pipe 6, the pressure limiting sealing ball 302 is elastically connected with the inner wall of the heat exchange coiled pipe 6 through an elastic element 301, the elastic element 301 is preferably a spring, the pressure limiting sealing ball 302 is positioned between the pressure limiting sealing ring 303 and the safety cap 4, the pressure generated by the gas generated by the volatilization of the first end of the heat exchange coiled pipe 6 can act on the surface of the pressure limiting sealing ball 302, when the pressure is lower than a preset threshold value, the pressure limiting sealing ball 302 can be tightly sealed with the pressure limiting sealing ring 303, so that the gas leakage is avoided, when the pressure exceeds the threshold value, the elastic element 301 contracts, a gap is generated between the pressure limiting sealing ball and the pressure limiting sealing ball 302, and the gas breaks through the sealing film and flows out, so that the pressure relieving process is realized; for a working area with requirements on the use environment, a containing bag can be arranged at the tail end of the safety helmet 4 and used for collecting the sprayed gas to avoid influencing the normal work of surrounding electronic components.

The inner wall of the safety cap 4 is provided with a first thread, the outer wall of the second end of the heat exchange coiled pipe 6 is provided with a second thread, the safety cap 4 and the heat exchange coiled pipe 6 can be detached and replaced, the sealing film 401 can be replaced in time after being damaged, and the maintenance cost is reduced.

The utility model discloses during the use, wherein the low boiling point liquid in the heat that electronic component work produced can interior storage box 2 absorbs in the major structure 1, and low boiling point liquid volatilizees and becomes gaseous entering into heat transfer coiled pipe 6 and realizes the heat dissipation, and gaseous can become liquid again under multiunit heat transfer fin 5's effect to in 6 flows back to major structure 1 of heat transfer coiled pipe through continuous slope, realize the circulation of low boiling point liquid.

When the pressure in the heat exchange coiled pipe 6 exceeds a threshold value, the elastic element 301 in the limiting assembly is compressed, a gap is formed between the pressure limiting sealing ball 302 and the pressure limiting sealing ring 303, gas breaks through the sealing membrane 401 and flows out, the pressure relief process is realized, internal liquid leakage is avoided, and the normal operation of the transformer is ensured.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides a transformer, includes major structure (1), be provided with in major structure (1) and hold chamber (101), its characterized in that, major structure (1) inside is provided with storage box (2), major structure (1) outside is provided with heat transfer coiled pipe (6), heat transfer coiled pipe (6) slope setting in succession, heat transfer coiled pipe (6) have the first end and the second end of keeping away from each other, be in the intercommunication state between the first end of heat transfer coiled pipe (6) and storage box (2), the second end detachable fixedly connected with safety helmet (4) of heat transfer coiled pipe (6), safety helmet (4) lateral wall is opened there is the installing port, fixedly connected with sealing membrane (401) in the installing port, be provided with pressure limiting component (3) in heat transfer coiled pipe (6), pressure limiting component (3) are located the position that is close to heat transfer coiled pipe (6) second end.

2. A transformer according to claim 1, characterized in that the main structure (1) is potted in one piece.

3. The transformer according to claim 1, characterized in that heat exchange fins (5) are fixedly connected to the outer wall of the main structure (1), and the heat exchange serpentine tubes (6) are attached to the heat exchange fins (5).

4. A transformer according to claim 3, characterised in that the heat exchanger fins (5) are in groups, the groups of fins (5) being arranged circumferentially around the body structure (1).

5. The transformer according to claim 3, wherein the heat exchange fins (5) are provided with accommodating grooves (501) at upper ends thereof, the heat exchange serpentine tube (6) is fixedly connected with heat exchange fixture blocks (502) at outer walls thereof, and the heat exchange fixture blocks (502) are matched with the accommodating grooves (501) in size.

6. The transformer according to claim 1, characterized in that the pressure limiting assembly (3) comprises a pressure limiting sealing ring (303) fixedly connected with the inner wall of the heat exchanging coiled pipe (6), a pressure limiting sealing ball (302) is arranged in the heat exchanging coiled pipe (6) and is positioned outside the pressure limiting sealing ring (303), and the pressure limiting sealing ball (302) is elastically connected with the inner wall of the heat exchanging coiled pipe (6) through an elastic element (301).

7. A transformer according to claim 1, characterised in that the safety helmet (4) is provided with a first thread on the inner wall and the heat exchange coil (6) is provided with a second thread on the outer wall at the second end.

Images