CN110648822A

CN110648822A - Power coil with built-in cooling structure

Info

Publication number: CN110648822A
Application number: CN201911042267.6A
Authority: CN
Inventors: 张青山
Original assignee: Electronics Co Ltd Of Huaihua Asiainfo
Current assignee: Electronics Co Ltd Of Huaihua Asiainfo
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-01-03

Abstract

The invention discloses a power coil with a built-in cooling structure, which comprises an annular iron core, a winding coil wound on the annular iron core and two heat dissipation annular sleeves sleeved at two ends of the annular iron core, wherein grooves for leading helical gear teeth to move are formed in the outer surface walls of the heat dissipation annular sleeves. According to the spliced heat dissipation sleeve, the winding coils wound on the annular iron core are distributed in a clearance mode, the two annular heat dissipation sleeves are sleeved at the two ends of the annular iron core, the outer wall of each annular heat dissipation sleeve is provided with a groove, the winding coils on the winding coils are clamped into the grooves, therefore, when the two annular heat dissipation sleeves and the winding coils are installed, the two annular heat dissipation sleeves only need to be inserted from the two sides of the winding coils in opposite directions and then rotate reversely, the two annular heat dissipation sleeves are connected in a buckling mode through the guiding of the winding coils, the spliced heat dissipation sleeve is convenient to install and detach, the contact area between the spliced heat dissipation sleeve and the winding coils is increased.

Description

Power coil with built-in cooling structure

Technical Field

The invention relates to the technical field of excitation power coil heat dissipation, in particular to a power coil with a built-in cooling structure.

Background

Exciting coil can produce the heat under the effect of strong current, and the cooling method that adopts at present is windy cold and water-cooling, and water-cooled exciting coil generally adopts the hollow conductor coiling, lets in the cooling water in hollow conductor, cools down, and the air-cooled is direct uses the fan to blow the heat dissipation to exciting coil to guarantee exciting coil winding's normal working property.

However, for the water-cooled structure, because the hollow lead needs to be filled with cooling water, if slight leakage occurs, the water-electricity connection safety of the water-cooled excitation coil will be affected, and the air-cooled mode is poor in the closed heat dissipation effect due to the winding of the coil.

Therefore, the invention provides a power coil with a built-in cooling structure.

Disclosure of Invention

The invention aims to: the power coil with the built-in cooling structure is provided for solving the problems that an excitation power coil is poor in air cooling heat dissipation effect and water and electricity safety easily occurs when cold water is led into a hollow lead.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a power coil of built-in cooling structure, includes annular iron core and coils the coil winding at annular iron core, still includes that two covers establish the heat dissipation annular cover at annular iron core both ends, the slot that helical gear tooth went to is seted up to the outward appearance wall of heat dissipation annular cover, the coil winding is the clearance and coils and place in the slot, heat dissipation annular cover is hollow structure and fixed ventilation pipe, two above that is provided with between the heat dissipation annular cover through the connecting pipe intercommunication.

As a further description of the above technical solution:

the one end welding of heat dissipation annular cover has annular shrouding, annular shrouding is hollow structure and communicates with the inner chamber of heat dissipation annular cover.

As a further description of the above technical solution:

the ventilation pipe is welded on one side of the annular sealing plate opposite to the heat dissipation annular sleeve.

As a further description of the above technical solution:

and one ends of the two heat dissipation annular sleeves positioned on the annular iron cores are mutually contacted.

As a further description of the above technical solution:

one end of the heat dissipation annular sleeve, which is positioned on the annular iron core, is provided with a counter bore which is in sealing fit with the connecting pipe.

As a further description of the above technical solution:

and the inner surface walls of the two heat dissipation annular sleeves are welded with connecting plates.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the spliced heat dissipation sleeve, the winding coils wound on the annular iron core are distributed in a clearance mode, the two annular heat dissipation sleeves are sleeved at the two ends of the annular iron core, the outer wall of each annular heat dissipation sleeve is provided with a groove, the winding coils on the winding coils are clamped into the grooves, therefore, when the two annular heat dissipation sleeves and the winding coils are installed, the two annular heat dissipation sleeves only need to be inserted from the two sides of the winding coils in opposite directions and then rotate reversely, the two annular heat dissipation sleeves are connected in a buckling mode through the guiding of the winding coils, the spliced heat dissipation sleeve is convenient to install and detach, the contact area between the spliced heat dissipation sleeve and the winding coils is increased.

2. According to the invention, the annular heat dissipation sleeves are hollow, the ventilation pipes are fixedly arranged on the annular heat dissipation sleeves, the two annular heat dissipation sleeves are communicated through the connecting pipe, the winding coil transfers heat into the inner cavity of the annular heat dissipation sleeves, so that the ventilation pipes are communicated with an external wind path, cold air circulates in the two annular heat dissipation sleeves, hot air is led into the outside, the heat dissipation of the winding coil is accelerated, and the heat dissipation efficiency of winding money can be greatly improved by changing the flow speed of the external cold air

3. According to the invention, the annular sealing plates are welded at one ends of the annular heat dissipation sleeves, the connecting plates are welded on the inner surface walls of the annular heat dissipation sleeves, the two annular heat dissipation sleeves are sleeved from the two ends of the annular iron core, the two connecting plates are connected through the bolts, the two annular sealing plates clamp the whole power coil, and the winding coil is fixed on the two annular heat dissipation sleeves, so that the annular heat dissipation sleeves are not required to be connected with external parts and are directly combined with the heat dissipation coil, the structure is simple, the occupied space is not occupied, and the positioning is reliable.

Drawings

FIG. 1 is a schematic diagram illustrating an exploded power coil and heat dissipating collar according to an embodiment of the present invention;

FIG. 2 illustrates a schematic structural view of a heat dissipating annular sleeve provided in accordance with an embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating the structure of two heat dissipating annular sleeves and a connecting pipe provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a structure of a power coil and a heat dissipation annular sleeve provided in an embodiment of the invention;

FIG. 5 is a schematic structural diagram illustrating a section of a counter bore and a connecting pipe according to an embodiment of the present invention

Illustration of the drawings:

1. an annular iron core; 2. winding a coil; 3. a heat dissipating annular sleeve; 31. a trench; 32. a vent pipe; 33. an annular seal plate; 34. a countersunk hole; 35. a connecting plate; 4. and (4) connecting the pipes.

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.

Referring to fig. 1-5, the present invention provides a technical solution: a power coil with a built-in cooling structure comprises an annular iron core 1 and a winding coil 2 wound on the annular iron core 1, and further comprises two heat dissipation annular sleeves 3 sleeved at two ends of the annular iron core 1, wherein grooves 31 with the trend of helical gear teeth are formed in the outer surface walls of the heat dissipation annular sleeves 3, the outer surface walls of the annular iron core 1 are provided with winding grooves to enable the winding coil 2 to be wound in a clearance mode, the winding coil 2 is wound in the clearance mode and is arranged in the grooves 31, one half of the upper line body of the winding coil 2 is sunk into the grooves 31 to increase the heat conduction area, the heat dissipation annular sleeves 3 can be made of common aluminum alloy materials and are good in heat dissipation effect, the heat dissipation annular sleeves 3 are of a hollow structure, ventilation pipes 32 are fixedly arranged on the heat dissipation annular sleeves 3, heat generated by the winding coil 2 enters the heat dissipation annular sleeves 3, the two heat dissipation annular sleeves 3 are, carry out the heat in the annular cover 3 that dispels the heat to the outside, the welding of the one end of the annular cover 3 that dispels the heat has annular shrouding 33, the ventilation pipe 32 welds in the relative one side of annular shrouding 33 and the annular cover 3 that dispels the heat, annular shrouding 33 be hollow structure and with the inner chamber intercommunication of the annular cover 3 that dispels the heat, further increase heat radiating area, connecting plate 35 has all been welded to the interior table wall of two annular covers 3 that dispel the heat, two connecting plates 35 pass through bolted connection, two annular shrouding 33 press from both sides tight power coil.

Specifically, as shown in fig. 4, one ends of the two heat dissipation annular sleeves 3, which are located on the annular iron core 1, are in contact with each other, so that the contact area with the winding coil 2 is further increased, and the heat dissipation efficiency is improved.

Specifically, as shown in fig. 3 and 5, a countersunk hole 34 hermetically matched with the connecting pipe 4 is formed in one end of the annular core 1 of the annular heat dissipation sleeve 3, a rubber sleeve is bonded in the countersunk hole 34, and two ends of the connecting pipe 4 are detachably connected with the rubber sleeve, so that the two annular heat dissipation sleeves 3 can be conveniently assembled and disassembled.

The working principle is as follows: during the use, with the outside wind path of ventilation pipe 32 switch-on, another ventilation pipe 32 passes through the pipeline intercommunication outside, and the back generates heat around coil 2, in the inner chamber for heat dissipation annular cover 3 and annular shrouding 33 with the heat transfer, in getting into next heat dissipation annular cover 3 through connecting pipe 4 under the promotion of air current to discharge from another ventilation pipe 32, improve radiating efficiency and radiating security.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a power coil of built-in cooling structure, includes annular iron core (1) and coils coil (2) at annular iron core (1), its characterized in that still includes that two covers establish heat dissipation annular cover (3) at annular iron core (1) both ends, slot (31) that oblique gear tooth walked to are seted up to the exterior wall of heat dissipation annular cover (3), coil (2) are the clearance and coil and place in slot (31), heat dissipation annular cover (3) are hollow structure and fixed ventilation pipe (32) that are provided with on it, two through connecting pipe (4) intercommunication between heat dissipation annular cover (3).

2. The power coil with the built-in cooling structure as claimed in claim 1, wherein an annular sealing plate (33) is welded to one end of the heat dissipation annular sleeve (3), and the annular sealing plate (33) is of a hollow structure and is communicated with an inner cavity of the heat dissipation annular sleeve (3).

3. The power coil with built-in cooling structure as claimed in claim 2, wherein the ventilation tube (32) is welded to the side of the annular sealing plate (33) opposite to the heat dissipating annular sleeve (3).

4. The power coil with the built-in cooling structure as claimed in claim 1, wherein one ends of the two heat dissipation annular sleeves (3) located on the annular iron core (1) are in contact with each other.

5. The power coil with the built-in cooling structure as claimed in claim 4, wherein a countersunk hole (34) hermetically matched with the connecting pipe (4) is formed at one end of the annular heat dissipation sleeve (3) located at the annular iron core (1).

6. The power coil with the built-in cooling structure as claimed in claim 1, wherein the inner surface walls of the two heat dissipation annular sleeves (3) are welded with connecting plates (35).