CN220041545U

CN220041545U - Transformer

Info

Publication number: CN220041545U
Application number: CN202320357255.8U
Authority: CN
Inventors: 张磊
Original assignee: Baiyi Lighting Shanghai Holdings Ltd
Current assignee: Baiyi Lighting Shanghai Holdings Ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-11-17
Anticipated expiration: 2033-03-02

Abstract

The utility model discloses a transformer, which comprises a transformer main body, a heat dissipation cover and a sealing piece, wherein the heat dissipation cover comprises a cover body and a plurality of heat dissipation plates, a cover cavity is formed in the cover body, a cover opening communicated with the cover cavity is formed in the cover body, the cover body is suitable for being arranged outside the transformer main body through the cover, and the plurality of heat dissipation plates are arranged on the outer wall of the cover body at intervals. The sealing member seals the cover opening when the heat dissipation cover is covered on the transformer main body. The transformer has good heat radiation performance and waterproof and dustproof performance.

Description

Transformer

Technical Field

The utility model relates to the field of voltage transformation equipment, in particular to a transformer.

Background

The transformer is power equipment for voltage conversion by utilizing the electromagnetic induction principle, can be widely applied to a plurality of industrial fields and has wide application range.

At present, heat generated by the transformer during operation is usually dissipated through the radiating holes formed in the surface of the transformer shell, but dust and moisture in the external environment easily enter the transformer through the radiating holes and erode internal parts of the transformer, so that the waterproof and dustproof properties of the transformer are poor, and the service life is shortened.

Disclosure of Invention

An advantage of the present utility model is to provide a transformer that has both good heat dissipation properties and waterproof and dustproof properties.

The transformer has the advantages that the sealing element is formed by covering the opening of the liquid glue encapsulating heat dissipation cover, and the heat conductivity of the encapsulating glue is larger than that of air, so that the heat dissipation performance and the waterproof and dustproof performance of the transformer are further enhanced.

To achieve at least one of the above advantages, the present utility model provides a transformer comprising:

a transformer body;

the radiating cover comprises a cover body and a plurality of radiating plates, a cover cavity is formed in the cover body, a cover opening communicated with the cover cavity is formed in the cover body, the cover body is suitable for being arranged outside the transformer main body through the cover opening, and the plurality of radiating plates are arranged on the outer wall of the cover body at intervals; the method comprises the steps of,

and the sealing piece seals the covering opening when the radiating cover is covered on the transformer main body.

According to an embodiment of the present utility model, the heat dissipation cover is made of aluminum alloy or copper.

According to an embodiment of the present utility model, the plurality of heat dissipation plates are parallel to each other and are equally spaced along the length direction of the cover.

According to an embodiment of the utility model, the heat dissipation plate is integrally formed with the cover.

According to an embodiment of the utility model, the heat dissipation plate is detachably connected with the cover body.

According to an embodiment of the present utility model, the heat dissipation plate is disposed on an opposite wall of the cover body opposite to the cover opening, and a plane of the heat dissipation plate is perpendicular to a plane of the cover opening and the opposite wall.

According to an embodiment of the present utility model, the transformer body includes:

an insulating framework;

the coil assembly comprises a primary coil and a secondary coil, and the primary coil and the secondary coil are arranged on the insulating framework at intervals; the method comprises the steps of,

the magnetic core assembly comprises a first magnetic core and a second magnetic core, wherein the first magnetic core is inserted into the insulating framework from one end, close to the primary coil, of the insulating framework, the second magnetic core is inserted into the insulating framework from one end, close to the secondary coil, of the insulating framework, and a magnetic loop is formed between the first magnetic core and the second magnetic core.

According to an embodiment of the utility model, the sealing member is configured as a potting compound, which is formed by potting the cap opening with a liquid glue.

According to an embodiment of the utility model, the thermal conductivity of the potting compound is greater than the thermal conductivity of air.

According to an embodiment of the utility model, the potting compound is configured as a silicone gel.

Drawings

Fig. 1 shows a schematic diagram of a transformer according to an embodiment of the present utility model in an angle.

Fig. 2 shows a schematic diagram of a transformer according to an embodiment of the utility model in another angle.

Fig. 3 shows a schematic structural view of the heat dissipating cover of the present utility model.

Fig. 4 shows a schematic structural diagram of a transformer body according to an embodiment of the present utility model.

Fig. 5 shows an exploded schematic view of a transformer body according to an embodiment of the present utility model.

Reference numerals

100. A transformer;

10. a transformer body; 11. an insulating skeleton; 12. a coil assembly; 121. a primary coil; 122. a secondary coil; 13. a magnetic core assembly; 131. a first magnetic core; 132. a second magnetic core;

20. a heat dissipation cover; 21. a cover body; 2101. a cavity is covered; 2102. covering a mouth; 22. and a heat dissipation plate.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 3, a transformer 100 according to a preferred embodiment of the present utility model will be described in detail, wherein the transformer 100 includes a transformer body 10, a heat sink 20 and a sealing member (not shown).

The transformer body 10 is used for transforming a voltage. The heat dissipation cover 20 includes a cover body 21 and a plurality of heat dissipation plates 22. The cover 21 has a cover cavity 2101 formed therein, the cover 21 has a cover opening 2102 communicating with the cover cavity 2101, and the cover 21 is adapted to be covered outside the transformer main body 10 through the cover opening 2102. The plurality of heat dissipation plates 22 are arranged on the outer wall of the cover body 21 at intervals. The sealing member seals the housing mouth 2102 when the heat radiation cover 20 is housed in the transformer 100.

In this way, when the transformer 100 is normally operated, that is, the transformer body 10 performs voltage conversion, so as to generate a large amount of heat, the heat dissipation cover 20 provided with the plurality of heat dissipation plates 22 has a large contact area with air, so that when the heat generated by the transformer body 10 is transferred to the heat dissipation cover 20, the heat can be rapidly dissipated through the peripheral wall of the cover 21 and the heat dissipation plates 22 provided on the cover 21, thereby enabling the transformer 100 to have good heat dissipation performance. Meanwhile, since the sealing member seals the covering opening 2102 when the heat dissipation cover 20 is covered on the transformer main body 10, dust, moisture, etc. in the external environment cannot easily enter the inside of the transformer main body 10 and gaps between the outer peripheral wall of the transformer main body 10 and the inner peripheral wall of the cover 21 through the covering opening 2102, and cannot easily erode the transformer main body 10, so that the transformer 100 can have good waterproof and dustproof performance, and therefore, the transformer 100 of the utility model realizes both heat dissipation performance and waterproof and dustproof performance.

In other words, at present, heat dissipation of the transformer is often achieved through the heat dissipation holes on the surface of the transformer shell, however, setting the heat dissipation holes can reduce the protection shielding performance of the transformer shell, so that dust, moisture and the like in the external environment easily enter the transformer through the heat dissipation holes, and further the internal parts of the transformer can be eroded, so that the existing transformer cannot achieve both heat dissipation performance and waterproof and dustproof performance, and further the service life of the transformer is affected. The transformer 100 of the present utility model has good heat dissipation performance and waterproof and dustproof performance, and can give consideration to both heat dissipation performance and waterproof and dustproof performance, thereby overcoming the problems existing in the prior art and prolonging the service life of the transformer 100.

According to some preferred embodiments of the present utility model, referring to fig. 1, the heat dissipation cover 20 is made of aluminum alloy or copper. The aluminum alloy and the copper have good heat conduction performance and low cost, and are favorable for considering the heat dissipation effect and the manufacturing cost of the heat dissipation cover 20.

According to some preferred embodiments of the present utility model, referring to fig. 1, a plurality of the heat dissipation plates 22 are parallel to each other and are equally spaced along the length direction of the cover 21, which can further enhance the uniform heat dissipation effect of the heat dissipation cover 20, and since the cover 21 has a larger size along the length direction, a greater number of the heat dissipation plates 22 can be provided on the cover 21, which can enhance the heat dissipation effect of the heat dissipation cover 20.

According to some preferred embodiments of the present utility model, referring to fig. 1 and 3, the heat dissipation plate 22 is disposed on an opposite wall of the cover 21 opposite to the covering opening 2102, and a plane of the heat dissipation plate 22 is perpendicular to a plane of the covering opening 2102 and the opposite wall.

In this way, when assembling the heat transformer, a customer or a machine may directly cover the heat dissipation cover 20 on the transformer main body 10 by clamping the portion of the heat dissipation cover 20 between the heat dissipation plate 22 and the cover opening 2102, thereby facilitating the assembly and manufacture of the transformer 100.

According to some specific examples of the present utility model, in particular, in the example of fig. 1, the number of the heat dissipation plates 22 is seven, seven heat dissipation plates 22 are disposed on an opposite wall outer surface of the cover 21 opposite to the cover mouth 2102, and the heat dissipation plates 22 are disposed at equal intervals along the length direction of the cover 21. It will be understood, of course, that the number of heat dissipating plates 22 of the present utility model includes, but is not limited to, the number of heat dissipating plates being set by the customer as desired.

In some embodiments of the present utility model, referring to fig. 1, the heat dissipating plate 22 and the cover 21 may be detachably connected, and it is understood that the number of the heat dissipating plates 22 may be advantageously adjusted by detachable connection, for example, different numbers of the heat dissipating plates 22 may be installed, so as to adapt to the transformer main body 10 that generates different amounts of heat during operation.

In other embodiments of the present utility model, referring to fig. 1, the heat dissipating plate 22 and the cover 21 may be integrally formed. For example, the heat radiating plate 22 may be integrally formed with the cover 21 by casting. It will be appreciated that the integrated design not only facilitates the assembly of the transformer 100 in the field, but also enhances the connection between the heat dissipating plate 22 and the cover 21, which is beneficial to increase the service life of the heat dissipating cover 20.

According to some preferred embodiments of the present utility model, referring to fig. 4 and 5, the transformer body 10 includes an insulating bobbin 11, a coil assembly 12, and a magnetic core assembly 13. The coil assembly 12 includes a primary coil 121 and a secondary coil 122. The primary coil 121 and the secondary coil 122 are disposed at intervals on the insulating bobbin 11. The magnetic core assembly 13 includes a first magnetic core 131 and a second magnetic core 132. The first magnetic core 131 is inserted into the insulating bobbin 11 from an end of the insulating bobbin 11 near the primary coil 121. The second magnetic core 132 is inserted into the insulating bobbin 11 from an end of the insulating bobbin 11 near the secondary coil 122, and a magnetic circuit is formed between the first magnetic core 131 and the second magnetic core 132.

In this way, when an ac current is input to the primary coil 121, an ac magnetic flux is generated in the magnetic core assembly 13, so that the secondary coil 122 induces a transformed output voltage according to the ac magnetic flux, and voltage transformation is achieved.

Specifically, the transformer body 10 may be a transformer 100 already existing in the prior art, such as a PQ4040 transformer, etc. Of course, it is understood that the transformer body 10 of the present utility model includes, but is not limited to, other types of transformers 100 capable of performing voltage transformation are equally applicable to the present utility model.

According to some preferred embodiments of the utility model, referring to fig. 2, the seal is configured as a potting compound formed by potting the cap 2102 with a liquid glue.

That is, when the transformer 100 of the present utility model is manufactured, the cover 21 of the heat dissipation cover 20 is covered on the outer side of the transformer body 10 through the cover opening 2102 of the heat dissipation cover 20, and after the cover is completed, the liquid pouring sealant is poured into the cover 21 through the cover opening 2102, so that the pouring sealant is in a liquid state, and after the pouring sealant is in a liquid state and fills the cover opening 2102, the liquid pouring sealant flows into the gap between the inner peripheral wall of the cover 21 and the outer peripheral wall of the transformer body 10 and the part of the transformer body 10 facing the cover opening 2102, thereby sealing the cover opening 2102 of the cover 21 after the pouring sealant is solidified, so that external moisture and dust are not easy to enter the gap between the inner peripheral wall of the cover 21 and the outer peripheral wall of the transformer body 10 and directly enter the inside of the transformer body, and further, the transformer body 10 is not easy to be corroded by the moisture and dust in the external environment, and further the transformer 100 can have a longer service life.

According to some preferred embodiments of the utility model, the potting compound has a thermal conductivity greater than that of air. In this way, the potting adhesive between the transformer main body 10 and the heat dissipation cover 20 can quickly transfer the heat generated by the transformer main body 10 to the heat dissipation cover 20, and the potting adhesive at the center part of the cover opening 2102 of the cover 21 can also quickly transfer the heat, so that the heat dissipation effect of the heat dissipation cover 20 is enhanced, and the transformer has good heat dissipation performance and waterproof and dustproof performances.

Specifically, the potting colloid may be silica gel. In addition, it is understood that the potting gels of the present utility model include, but are not limited to, other gels having a thermal conductivity greater than that of air and which can be potted are equally suitable for use in the present utility model.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present utility model have been fully and effectively realized. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims

1. A transformer, comprising:

a transformer body;

2. The transformer of claim 1, wherein the heat sink cap is made of an aluminum alloy or copper.

3. The transformer according to claim 1, wherein a plurality of the heat dissipation plates are parallel to each other and are disposed at equal intervals along a length direction of the cover.

4. The transformer of claim 1, wherein the heat sink is integrally formed with the cover.

5. The transformer of claim 1, wherein the heat sink and the cover are removably coupled.

6. The transformer of claim 1, wherein the heat dissipating plate is disposed on an opposite wall of the cover opposite the cover opening, and a plane of the heat dissipating plate is perpendicular to a plane of the cover opening and the opposite wall.

7. The transformer according to claim 1, wherein the transformer body comprises:

an insulating framework;

8. The transformer of claim 1, wherein the seal is configured as a potting compound formed by potting the cap with a liquid glue.

9. The transformer of claim 8, wherein the potting compound has a thermal conductivity greater than an air thermal conductivity.

10. The transformer according to claim 8 or 9, wherein the potting compound is configured as a silicone gel.