Shell structure of charge pump

Abstract

The utility model discloses a shell structure of a charge pump, which relates to the technical field of charge pumps and comprises a lower shell, an upper shell and pins, the upper shell is mounted on the lower shell, the pins are mounted on two sides of the upper shell, and side combined heat dissipation structures are arranged on four side surfaces of the lower shell. Through mutual cooperation of the side combined heat dissipation structure, the upper combined heat dissipation structure, the side heat conduction columns, the upper heat conduction columns, the lower shell heat conduction layer and the upper shell heat conduction layer, heat inside and outside the charge pump shell can be rapidly transferred, and heat generated in the charge pump can be rapidly conducted out in the operation process of the charge pump. In order to avoid influence on normal operation of the charge pump and shortening of the service life of the charge pump due to overhigh temperature of the charge pump, the bottom heat dissipation fin plate is arranged and can support the lower shell, so that a certain heat dissipation channel is reserved at the bottom of the lower shell, the bottom surface of the charge pump can effectively dissipate heat, and the service life of the charge pump is prolonged. And the heat dissipation efficiency of the charge pump is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charge pumps, in particular to a shell structure of a charge pump. Background Art

[0002] A charge pump, also known as a switched capacitor voltage converter, is a DC-DC converter that uses so-called "flying" or "pumping" capacitors (rather than inductors or transformers) to store energy. The charge pump can store energy and then release it in a controlled manner to obtain the required output voltage. The charge pump will inevitably generate heat during operation. The existing charge pump housing is usually composed of an upper housing and a lower housing (see the attached manual). Figure 4 As shown in the physical picture provided, the heat generated by the charge pump can only be dissipated through the shell itself. However, the existing charge pump has the problem that the heat dissipation area of ​​the shell is not large enough and the heat dissipation efficiency is not high enough. Utility Model Content

[0003] The purpose of the utility model is to provide a housing structure of a charge pump to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The heat dissipation mechanism is a kind of heat dissipation mechanism, and the heat dissipation mechanism is a kind of heat dissipation mechanism, and the heat dissipation mechanism is a kind of heat dissipation mechanism, and the heat dissipation mechanism is a kind of heat dissipation mechanism, and the heat dissipation mechanism is a kind of heat dissipation mechanism.

[0006] As a further solution of the utility model: a plurality of through holes are provided at equal intervals on the bottom heat dissipation fin plate.

[0007] As a further solution of the utility model: the thickness of the upper shell heat-conducting layer and the lower shell heat-conducting layer are both 0.5-0.8 mm.

[0008] As a further solution of the utility model: the folded-line heat dissipation fin plate is fixedly connected to the straight-line heat dissipation fin plate at the folding point.

[0009] As a further solution of the utility model: the upper heat-conducting column and the side heat-conducting column are respectively connected to the linear heat-dissipating fin plate in the upper combined heat-dissipating structure and the linear heat-dissipating fin plate in the side combined heat-dissipating structure.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model can realize rapid heat transfer between the inside and outside of the charge pump housing through the cooperation of the side combined heat dissipation structure, the upper combined heat dissipation structure, the side heat-conducting column, the upper heat-conducting column, the lower housing heat-conducting layer and the upper housing heat-conducting layer, so as to facilitate rapid heat dissipation generated in the charge pump during the operation of the charge pump, thereby avoiding excessive temperature of the charge pump affecting the normal operation of the charge pump and shortening the service life of the charge pump.

[0012] 2. The utility model provides a bottom heat dissipation fin plate, which can prop up the lower shell, so that a certain heat dissipation channel is retained at the bottom of the lower shell, so that the bottom surface of the charge pump can effectively dissipate heat, thereby improving the heat dissipation efficiency of the charge pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A front view of a housing structure of a charge pump.

[0014] Figure 2 A front cross-sectional view of a housing structure of a charge pump.

[0015] Figure 3 A side view of a housing structure of a charge pump.

[0016] Figure 4 This is a physical diagram of the external structure of an existing charge pump.

[0017] 1. Lower shell; 2. Upper shell; 3. Pins; 4. Side combined heat dissipation structure; 5. Straight heat dissipation fins; 6. Broken-line heat dissipation fins; 7. Upper combined heat dissipation structure; 8. Side heat-conducting columns; 9. Upper heat-conducting columns; 10. Lower shell heat-conducting layer; 11. Upper shell heat-conducting layer; 12. Bottom heat dissipation fins; 13. Through holes. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 In the embodiment of the utility model, a shell structure of a charge pump includes a lower shell 1, an upper shell 2 and pins 3, the upper shell 2 is installed on the lower shell 1, and pins 3 are installed on both sides of the upper shell 2, the four sides of the lower shell 1 are provided with side combined heat dissipation structures 4, and the top of the upper shell 2 is provided with an upper combined heat dissipation structure 7, the side combined heat dissipation structure 4 and the upper combined heat dissipation structure 7 both include linear heat dissipation fins 5 and folded line heat dissipation fins 6, the linear heat dissipation fins 5 are arranged side by side with equal intervals on the lower shell 1 and the upper shell 2, and the folded line heat dissipation fins 6 are arranged between two adjacent linear heat dissipation fins 5, the inner wall of the lower shell 1 and the inner wall of the upper shell 2 are respectively provided with a lower shell heat conduction layer 10 and an upper shell heat conduction layer 11, the lower shell heat conduction layer 10 is connected to the side combined heat dissipation structure 4 by a plurality of side heat conduction columns 8 embedded in the lower shell 1, and the upper shell heat conduction layer 11 is connected to the upper combined heat dissipation structure 7 by a plurality of upper heat conduction columns 9 embedded in the upper shell 2;

[0020] The thickness of the upper shell heat-conducting layer 11 and the lower shell heat-conducting layer 10 are both 0.5-0.8 mm. Setting the heat-conducting layer of this thickness can ensure the heat-conducting effect on the one hand, and will not cause waste of materials on the other hand. The upper shell heat-conducting layer 11, the lower shell heat-conducting layer 10, the upper heat-conducting column 9 and the side heat-conducting column 8 are all made of copper heat-conducting material;

[0021] The folded-line heat dissipation fin plate 6 is fixedly connected to the straight-line heat dissipation fin plate 5 at the folding point, so that the heat on the straight-line heat dissipation fin plate 5 can be transferred to the folded-line heat dissipation fin plate 6 more quickly, making the heat dissipation efficiency higher;

[0022] The upper heat-conducting column 9 and the side heat-conducting column 8 are connected to the linear heat-dissipating fin plate 5 in the upper combined heat-dissipating structure 7 and the linear heat-dissipating fin plate 5 in the side combined heat-dissipating structure 4 respectively.

[0023] See also Figure 2-3 A plurality of bottom heat dissipating fins 12 are evenly spaced on the bottom surface of the lower shell 1, and a plurality of through holes 13 are evenly spaced on the bottom heat dissipating fins 12. The arrangement of the through holes 13 allows air to circulate at the bottom of the lower shell 1, so that the heat on the bottom heat dissipating fins 12 can be dissipated faster.

[0024] The working principle of the utility model is:

[0025] When in use, the heat generated by the operation of the charge pump is first transferred to the lower shell heat conductive layer 10 and the upper shell heat conductive layer 11. Part of the heat on the lower shell heat conductive layer 10 is transferred to the side combined heat dissipation structure 4 through the side heat conductive column 8, and the other part of the heat is transferred from the bottom of the lower shell 1 to the surrounding air through the bottom heat dissipation fin plate 12, and then transferred to the surrounding air by the side combined heat dissipation structure 4. The heat on the upper shell heat conductive layer 11 is transferred to the upper combined heat dissipation structure 7 through the upper heat conductive column 9, and then transferred to the surrounding air by the upper combined heat dissipation structure 7.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A housing structure of a charge pump, comprising a lower housing (1), an upper housing (2) and pins (3), wherein the upper housing (2) is mounted on the lower housing (1), and pins (3) are mounted on both sides of the upper housing (2), characterized in that: The four sides of the lower shell (1) are all provided with side combined heat dissipation structures (4), the top of the upper shell (2) is provided with an upper combined heat dissipation structure (7), the side combined heat dissipation structures (4) and the upper combined heat dissipation structure (7) both comprise straight-line heat dissipation fin plates (5) and folded-line heat dissipation fin plates (6), the straight-line heat dissipation fin plates (5) are arranged side by side at equal intervals on the lower shell (1) and the upper shell (2), the folded-line heat dissipation fin plates (6) are arranged between two adjacent straight-line heat dissipation fin plates (5), and the lower shell (1) The inner wall and the inner wall of the upper shell (2) are respectively provided with a lower shell heat-conducting layer (10) and an upper shell heat-conducting layer (11); the lower shell heat-conducting layer (10) is connected to the side combined heat dissipation structure (4) via a plurality of side heat-conducting columns (8) embedded in the lower shell (1); the upper shell heat-conducting layer (11) is connected to the upper combined heat dissipation structure (7) via a plurality of upper heat-conducting columns (9) embedded in the upper shell (2); and a plurality of bottom heat dissipation fins (12) are evenly spaced on the bottom surface of the lower shell (1).

2. The housing structure of a charge pump according to claim 1, characterized in that: A plurality of through holes (13) are provided at equal intervals on the bottom heat dissipation fin plate (12).

3. The housing structure of a charge pump according to claim 1, characterized in that: The thickness of the upper shell heat-conducting layer (11) and the lower shell heat-conducting layer (10) are both 0.5-0.8 mm.

4. The housing structure of a charge pump according to claim 1, characterized in that: The folded-line heat dissipation fin plate (6) is fixedly connected to the straight-line heat dissipation fin plate (5) at the folding point.

5. The housing structure of a charge pump according to claim 1, characterized in that: The upper heat-conducting column (9) and the side heat-conducting column (8) are respectively connected to the linear heat-dissipating fin plate (5) in the upper combined heat-dissipating structure (7) and the linear heat-dissipating fin plate (5) in the side combined heat-dissipating structure (4).

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