CN112331446A

CN112331446A - Transformer heat abstractor

Info

Publication number: CN112331446A
Application number: CN202010995792.6A
Authority: CN
Inventors: 吴伶俐; 章礼勇; 韩晓健; 吴富荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-02-05

Abstract

The invention discloses a transformer heat dissipation device, and belongs to the field of transformers. A transformer heat sink comprising: the shell and the plurality of rotating plates; the transformer is arranged in the housing; the upper end of the shell is provided with a through air inlet channel, and a fan is arranged in the air inlet channel; the shell is provided with at least one opening, the opening is communicated with the outside, and the rotating plate is arranged in the opening and is in rotating connection with the shell; when the rotating plate is rotated to be aligned with the opening, the opening can be closed; a flow channel is embedded in the rotating plate, and two ends of the flow channel are communicated with the outside of the shell. Compared with the prior art, the variable pressure ball heat dissipation device can effectively utilize high-humidity air or rainwater to dissipate heat, and meanwhile can ensure waterproofness.

Description

Transformer heat abstractor

Technical Field

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

Background

The transformer is a device for changing alternating voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil and an iron core. The main functions are voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization and the like. A conventional transformer is generally provided with a transformer bobbin, an iron core is inserted into the transformer bobbin, and a primary coil and a secondary coil are wound on the outside.

The transformer is used outdoors, and the energized coils are arranged inside the transformer, so that the shell of the transformer needs to have good waterproof performance. Although transformers for outdoor use are also provided with vent or grid-like heat dissipation structures, the heat dissipation performance of these structures is constrained due to the limitations of the waterproof requirements. That is, the conventional transformer heat dissipation structure cannot achieve a good heat dissipation effect while maintaining waterproof properties.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a transformer heat dissipation device.

The purpose of the invention can be realized by the following technical scheme:

a transformer heat sink comprising: the shell and the plurality of rotating plates;

the transformer is arranged in the housing;

the upper end of the shell is provided with a through air inlet channel, and a fan is arranged in the air inlet channel;

the shell is provided with at least one opening, the opening is communicated with the outside, and the rotating plate is arranged in the opening and is in rotating connection with the shell; when the rotating plate is rotated to be aligned with the opening, the opening can be closed;

a flow channel is embedded in the rotating plate, and two ends of the flow channel are communicated with the outside of the shell.

Furthermore, the rotating plate is vertically arranged, the upper end of the shell is provided with a through water inlet hole, and the lower end of the shell is provided with a through water drain hole; one end of the flow channel extends to the upper end of the rotating plate and is communicated with the water inlet hole; the other end of the flow passage extends to the lower end of the rotating plate and is communicated with the drain hole.

Furthermore, the upper end of the shell is provided with a diversion trench, and the upper end of the water inlet hole extends to the bottom surface of the diversion trench.

Furthermore, an inner cavity is formed in the shell, a rotating shaft of the rotating plate extends into the inner cavity, a stop block is arranged in the inner cavity, a vent hole is formed in the stop block, one end of the vent hole is aligned with the flow channel, and the rotating shaft is fixedly connected with the stop block; and when and only when the rotating plate seals the opening, the stop block blocks the air inlet channel, and meanwhile, the other end of the vent hole is communicated with the air inlet channel.

Further, the flow passages are arranged in an S shape.

Further, a heat conducting plate is fixedly connected to the rotating plate, radiating fins are mounted on the transformer, and when the rotating plate does not seal the opening, the heat conducting plate is in lap joint with the radiating fins.

Furthermore, a drying agent is arranged at the lower end of the air inlet channel.

Furthermore, a boss is arranged at the upper end of the shell, the upper end of the boss is higher than the upper end surface of the shell, and the upper end of the air inlet channel extends to the upper end of the boss; a plurality of support rods are fixedly arranged on the boss and arranged around the upper end of the air inlet channel; the boss top is equipped with the weather shield, and is a plurality of the bracing piece all with the lower terminal surface fixed connection of weather shield.

The invention has the beneficial effects that:

the transformer heat dissipation device can isolate water vapor, protect the transformer and simultaneously utilize high humidity or rainwater to exchange heat so as to achieve the purpose of heat dissipation.

Drawings

The invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic perspective view of a heat dissipation device according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of a heat dissipation device in an embodiment of the present application;

fig. 3 is a schematic perspective view of a heat dissipation device according to another embodiment of the present application;

FIG. 4 is a cross-sectional view of a heat sink in another embodiment of the present application;

FIG. 5 is a perspective view of a rotating plate in one embodiment of the present application;

fig. 6 is a cross-sectional view of a rotation plate in the present application.

The parts corresponding to the reference numerals in the figures are as follows:

1. a housing; 2. a drain hole; 3. a rotating plate; 4. a water inlet hole; 5. a fan; 6. a rain shield; 7. a support bar; 8. a boss; 9. a stopper; 10. a flow channel; 11. a vent hole; 12. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

A transformer heat sink comprising: a shell 1 and a plurality of rotating plates 3; the transformer is arranged in the housing 1; the upper end of the shell 1 is provided with a through air inlet channel, and a fan 5 is arranged in the air inlet channel; the shell 1 is provided with at least one opening which is communicated with the outside, and the rotating plate 3 is arranged in the opening and is rotationally connected with the shell 1; when the rotating plate 3 is rotated to be aligned with the opening, the opening can be closed; a flow channel 10 is embedded in the rotating plate 3, and both ends of the flow channel 10 are communicated with the outside of the shell 1.

More specifically, in a dry environment where the transformer is arranged inside the housing 1, the rotating plate 3 may be rotated such that the rotating plate 3 does not block the opening, and in order to maximize the opening ventilation area, the rotating plate 3 should be perpendicular to the direction of the opening. When the humidity of the outside air is too high, or when rain and fog weather occurs, the rotating plate 3 should be rotated, so that the opening is sealed by the rotating plate 3, and the transformer part is prevented from being damaged by rain or fog. Meanwhile, external air or rainwater can be introduced into the flow channels 10 of the rotating plate 3 to exchange heat with the rotating plate 3, so that the rotating plate 3 continues to exert a heat dissipation function.

In an embodiment of the present invention, as shown in fig. 1, fig. 5 and fig. 2, the rotating plate 3 is vertically disposed, the upper end of the housing 1 is provided with a through water inlet hole 4, and the lower end is provided with a through water drain hole 2; one end of the flow channel 10 extends to the upper end of the rotating plate 3 and is communicated with the water inlet 4; the other end of the flow passage 10 extends to the lower end of the rotating plate 3 and communicates with the water discharge hole 2.

When raining, the opening is sealed by the rotating plate 3, and rainwater is prevented from entering the shell 1. Rainwater flows into the flow channel 10 of the rotating plate 3 from the water inlet hole 4. Exchanges heat with the rotating plate 3 and is then discharged from the other end of the flow channel 10 to the outside of the housing 1. Like this through rainwater and 3 heat exchanges of rotor plate, can derive the heat of transformer, seals the opening through rotor plate 3, when guaranteeing waterproof nature, utilizes the rainwater to derive the heat, reaches the radiating effect.

It can be understood that, with respect to the existing transformer heat sink, the heat sink in this embodiment, which dissipates heat by rainwater in rainy weather, can rotate the rotating plate 3 in dry environment, and opens the opening to provide an unobstructed heat dissipating passage with a large ventilation cross section, and exchanges heat with the outside of the case 1 by air flow.

More specifically, in the present embodiment, the upper end of the housing 1 is provided with a diversion trench, and the upper end of the water inlet hole 4 extends to the bottom surface of the diversion trench. So that rainwater falling on the upper end of the housing 1 efficiently flows into the flow passage 10.

In another embodiment of the present invention, as shown in fig. 3 and 4, the housing 1 has an inner cavity, the rotating shaft 12 of the rotating plate 3 extends into the inner cavity, the inner cavity is provided with a stopper 9, the stopper 9 is provided with a vent hole 11, one end of the vent hole 11 is aligned with the flow channel 10, and the rotating shaft 12 is fixedly connected with the stopper 9; if and only if the rotating plate 3 closes the opening, the stopper 9 blocks the air intake passage, while the other end of the air vent 11 communicates with the air intake passage.

In this embodiment, also, when the external environment is dry, the rotating plate 3 may be rotated so that the rotating plate 3 is perpendicular to the opening, a large ventilation area is maintained, and heat dissipation is performed by air flow. When the humidity of the external environment is high, the rotating plate 3 is adjusted to seal the opening, meanwhile, the stop block 9 rotates along with the rotating plate 3 in the inner cavity, and when the rotating plate 3 seals the opening, the lower end of the air inlet channel is sealed by the stop block, so that high-humidity air cannot flow into the shell 1. The ventilation holes 11 of the stopper 9 communicate the flow channel 10 with the intake air channel, so that the air with high humidity turns to flow into the flow channel 10 to exchange heat with the rotating plate 3.

It can be understood that, in the present embodiment, by closing the air inlet channel, the moisture of the transformer parts can be effectively prevented, and the high humidity air is introduced into the flow channel 10 to perform the heat dissipation through the heat exchange with the rotating plate 3. In addition, the heat absorption capacity of air with higher humidity is better than that of dry air, so that the high-humidity air can achieve a better heat dissipation effect.

Further, as shown in fig. 6, the flow channels 10 are arranged in an S-shape. The rotating plate 3 is fixedly connected with a heat conducting plate, the transformer is provided with a radiating fin, and when the rotating plate 3 does not seal the opening, the heat conducting plate is lapped on the radiating fin and can further conduct heat of the transformer. The lower end of the air inlet channel is provided with a drying agent. The joint of the rotating plate 3 and the shell 1 is provided with a sealing element to prevent water leakage at the joint of the rotating plate 3 and the shell 1.

The upper end of the shell 1 is provided with a boss 8, the upper end of the boss 8 is higher than the upper end surface of the shell 1, and the upper end of the air inlet channel extends to the upper end of the boss 8; a plurality of support rods 7 are fixedly arranged on the boss 8, and the support rods 7 are arranged around the upper end of the air inlet channel; a rain baffle 6 is arranged above the boss 8, and the plurality of support rods 7 are fixedly connected with the lower end face of the rain baffle 6. By arranging the rain shield 6, rain and snow can be directly shielded. And through setting up boss 8, when the sleet weather appears, can avoid ponding to flow into inside shell 1.

A driving mechanism is fixedly installed at the upper end of the shell 1 or in the shell 1, the rotating plate 3 is fixedly connected with the output end of the driving mechanism, and the driving mechanism is used for driving the rotating plate 3 to rotate. Through setting up actuating mechanism drive rotor plate 3, can use manpower sparingly. On the other hand, in the weather of non-rain or snow, the air flow inside and outside the housing 1 is accelerated by the continuous rotation of the approaching rotating plate 3, and the heat dissipation is effectively promoted.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to 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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer 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.

The foregoing shows and describes the general principles, essential 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, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A transformer heat sink, comprising: a shell (1) and a plurality of rotating plates (3);

the transformer is arranged within the housing (1);

the upper end of the shell (1) is provided with a through air inlet channel, and a fan (5) is arranged in the air inlet channel;

the shell (1) is provided with at least one opening which is communicated with the outside, and the rotating plate (3) is arranged in the opening and is rotationally connected with the shell (1); when the rotating plate (3) is rotated to be aligned with the opening, the opening can be closed;

a flow channel (10) is embedded into the rotating plate (3), and two ends of the flow channel (10) are communicated with the outside of the shell (1).

2. The transformer heat dissipation device according to claim 1, wherein the rotating plate (3) is vertically arranged, the upper end of the housing (1) is provided with a through water inlet hole (4), and the lower end is provided with a through water drain hole (2); one end of the flow channel (10) extends to the upper end of the rotating plate (3) and is communicated with the water inlet hole (4); the other end of the flow passage (10) extends to the lower end of the rotating plate (3) and is communicated with the drain hole (2).

3. The transformer heat sink according to claim 2, wherein the upper end of the housing (1) is provided with a guiding groove, and the upper end of the water inlet hole (4) extends to the bottom surface of the guiding groove.

4. The transformer heat dissipation device according to claim 1, wherein an inner cavity is formed in the housing (1), a rotating shaft (12) of the rotating plate (3) protrudes into the inner cavity, a stopper (9) is disposed in the inner cavity, a vent hole (11) is formed in the stopper (9), one end of the vent hole (11) is aligned with the flow channel (10), and the rotating shaft (12) is fixedly connected with the stopper (9); and if and only if the rotating plate (3) closes the opening, the stop block (9) blocks the air inlet channel, and meanwhile, the other end of the vent hole (11) is communicated with the air inlet channel.

5. The transformer heat sink according to claim 1, wherein the flow channels (10) are arranged in an S-shape.

6. The transformer heat sink according to claim 1, wherein a heat conducting plate is fixedly connected to the rotating plate (3), and a heat sink is mounted on the transformer, and when the rotating plate (3) does not close the opening, the heat conducting plate overlaps the heat sink.

7. The transformer heat sink according to claim 1, wherein a desiccant is disposed at a lower end of the air inlet channel.

8. The transformer heat dissipation device according to claim 1, wherein a boss (8) is provided at an upper end of the housing (1), an upper end of the boss (8) is higher than an upper end surface of the housing (1), and an upper end of the air inlet channel extends to an upper end of the boss (8); a plurality of support rods (7) are fixedly arranged on the boss (8), and the support rods (7) are arranged around the upper end of the air inlet channel; the top of the boss (8) is provided with a rain baffle (6), and the support rods (7) are fixedly connected with the lower end face of the rain baffle (6).

9. The transformer heat sink according to claim 1, characterized in that the joint of the rotating plate (3) and the housing (1) is provided with a seal.

10. The transformer heat dissipation device according to claim 1, wherein a driving mechanism is fixedly mounted at an upper end of the housing (1) or inside the housing (1), the rotating plate (3) is fixedly connected with an output end of the driving mechanism, and the driving mechanism is used for driving the rotating plate (3) to rotate.