A controllable power supply for a cooling fan

Abstract

This utility model discloses a controllable power supply for a cooling fan, including a first frame, a second frame mounted on the back of the first frame, an outer wall of a mounting housing fixedly connected to the first frame, a fan body mounted on the back of the mounting housing via the second frame, a control circuit board disposed inside the mounting housing, a cover mounted on the mounting housing for shielding and protecting the control circuit board, and a limiting component disposed inside the mounting housing, which limits the installation of the control circuit board through the cover. This utility model utilizes the coordinated use of the mounting housing, fan body, control circuit board, cover, and limiting component. The cover and limiting component ensure the stability of the control circuit board inside the mounting housing. Removing the cover allows direct removal of the control circuit board from the mounting housing, thereby improving the convenience of installing and removing the control circuit board.

Description

Technical Field

[0001] This utility model relates to the field of cooling fans, and in particular to a controllable power supply for cooling fans. Background Technology

[0002] Controllable power supplies for cooling fans are an important component of modern electronic equipment heat dissipation systems. They can effectively regulate fan speed, achieve energy saving, noise reduction, and optimized heat dissipation. By properly selecting and using controllable power supplies, the working efficiency and stability of equipment can be improved, and its service life can be extended.

[0003] The working principle of a controllable power supply for a cooling fan is mainly based on adjusting voltage or current to control the fan speed. When regulating the power supply of a cooling fan, the circuit on the control board usually adjusts the output voltage according to the received control signal. The higher the voltage, the faster the fan speed, and vice versa. However, when installing a cooling fan, the fan body is usually installed through two mating frames, and the control board is assembled inside the fan body. Therefore, when it is necessary to disassemble and maintain the control board, it is necessary to disassemble the two frames and then disassemble the fan body. This makes disassembly and assembly cumbersome and inconvenient to directly disassemble and maintain the circuit board, thus having certain drawbacks. Utility Model Content

[0004] The purpose of this invention is to provide a controllable power supply for a cooling fan to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a controllable power supply for a cooling fan, comprising:

[0006] A first frame and a second frame, wherein the second frame is mounted on the back of the first frame;

[0007] The mounting housing is fixedly connected to the first frame;

[0008] The fan body is mounted on the back of the mounting housing via a second frame;

[0009] A control circuit board, wherein the control circuit board is disposed inside the mounting housing;

[0010] A cover is mounted on the mounting housing and is used to shield and protect the control circuit board.

[0011] A limiting component is disposed inside the mounting housing, and the limiting component limits the installation of the control circuit board through a cover.

[0012] Preferred options also include:

[0013] A fixing block is fixedly connected to the side of the cover plate, and a groove matching the fixing block is provided on the front of the mounting housing;

[0014] An inner bolt is provided on a fixing block, and the fixing block is fixedly connected to the mounting housing by the inner bolt.

[0015] Preferably, the limiting component includes:

[0016] A connecting plate is disposed inside the mounting housing, and a snap-fit ​​groove matching the control circuit board is provided on one side of the connecting plate;

[0017] A fixing rod, one end of which is fixedly connected to the plate cover, and the outer wall of the fixing rod is slidably inserted into the connecting plate.

[0018] Preferably, the limiting component further includes;

[0019] A rubber sleeve is slidably fitted onto the outside of a fixed rod, and the rubber sleeve is located on one side of a connecting plate;

[0020] A limiting spring is slidably sleeved on the outside of the fixed rod, and the limiting spring is located on the other side of the connecting plate.

[0021] Preferably, the limiting component further includes a positioning seat, which is fixedly connected to the inside of the mounting housing. The front of the positioning seat has a through hole that matches the fixing rod, and the front of the positioning seat has a positioning groove that matches the rubber sleeve.

[0022] Preferably, the limiting component further includes:

[0023] Guide rod, one end of which is fixedly connected to the connecting plate;

[0024] A guide hole is provided on the front of the positioning seat, and the outer wall of the guide rod is slidably sleeved with the inner cavity of the guide hole.

[0025] The technical effects and advantages of this utility model are as follows:

[0026] This utility model utilizes the combined use of a mounting housing, a fan body, a control circuit board, a cover, and a limiting component. With the help of the cover and the limiting component, the stability of the control circuit board installed inside the mounting housing can be ensured. By removing the cover, the control circuit board can be directly removed from inside the mounting housing, thereby improving the convenience of installing and removing the control circuit board. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2This is a top-view schematic diagram of the internal structure of the mounting housing portion of this utility model;

[0029] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0030] In the diagram: 1. First frame; 2. Second frame; 3. Mounting housing; 4. Fan body; 5. Control circuit board; 6. Cover; 7. Limiting assembly; 71. Connecting plate; 72. Fixing rod; 73. Positioning seat; 74. Rubber sleeve; 75. Limiting spring; 76. Guide rod; 77. Guide hole; 8. Fixing block; 9. Inner bolt. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This utility model provides, for example Figure 1-3 The diagram shows a controllable power supply for a cooling fan.

[0033] Example 1

[0034] The system includes a first frame 1, a second frame 2, a mounting housing 3, a fan body 4, a control circuit board 5, a cover 6, and a limiting assembly 7. The second frame 2 is mounted on the back of the first frame 1. The outer wall of the mounting housing 3 is fixedly connected to the first frame 1. The fan body 4 is mounted on the back of the mounting housing 3 via the second frame 2. The control circuit board 5 is located inside the mounting housing 3. The first frame 1 has a cable routing hole for installing cables connected to the control circuit board 5. Thus, an external power supply is electrically connected to the control circuit board 5 via the cable to power the fan body 4. The control circuit board 5 can... The voltage supplying power to the fan body 4 is controlled, thereby regulating the fan body 4. The installation of the first frame 1, the second frame 2, the mounting housing 3, and the fan body 4 are all existing technologies and will not be described in detail here. The cover 6 is installed on the mounting housing 3 and is used to shield and protect the control circuit board 5. The limiting component 7 is set inside the mounting housing 3. The limiting component 7 limits the installation of the control circuit board 5 through the cover 6. Thus, by removing the cover 6, the control circuit board 5 can be directly removed from inside the mounting housing 3, thereby improving the convenience of installing and removing the control circuit board 5.

[0035] Furthermore, it also includes a fixing block 8 and an inner bolt 9. The fixing block 8 is fixedly connected to the side of the cover 6. The front of the mounting housing 3 is provided with a groove that matches the fixing block 8. The inner bolt 9 is set on the fixing block 8. The fixing block 8 is fixedly connected to the mounting housing 3 through the inner bolt 9. The inner bolt 9 and the fixing block 8 can ensure the stability of the cover 6 installation. The cover 6 can be removed by removing the inner bolt 9.

[0036] Example 2

[0037] Based on Embodiment 1, the limiting component 7 includes a connecting plate 71 and a fixing rod 72. The connecting plate 71 is disposed inside the mounting housing 3. A snap-fit ​​groove matching the control circuit board 5 is opened on one side of the connecting plate 71, so that both sides of the control circuit board 5 are snapped into the snap-fit ​​groove. The two connecting plates 71 can limit the installation of the control circuit board 5. One end of the fixing rod 72 is fixedly connected to the cover 6. The outer wall of the fixing rod 72 is slidably inserted and sleeved with the connecting plate 71, and the minimum number of fixing rods 72 connected to the connecting plate 71 is two.

[0038] Furthermore, the limiting component 7 also includes a rubber sleeve 74 and a limiting spring 75. The rubber sleeve 74 is slidably sleeved on the outside of the fixing rod 72 and is located on one side of the connecting plate 71. The limiting spring 75 is slidably sleeved on the outside of the fixing rod 72 and is located on the other side of the connecting plate 71. The limiting spring 75 and the rubber sleeve 74 can elastically compress and limit the connecting plate 71, thereby allowing the connecting plate 71 to flexibly install and limit the control circuit board 5, that is, to provide buffer protection for the control circuit board 5. The limiting component 7 also includes a positioning seat 73, which is fixedly connected to the inside of the mounting housing 3. The front of the positioning seat 73 has a through hole that matches the fixing rod 72, and the front of the positioning seat 73 has a positioning groove that matches the rubber sleeve 74. Under the action of the positioning seat 73, the stability of the installation of the fixing rod 72 and the rubber sleeve 74 can be improved.

[0039] Furthermore, the limiting component 7 also includes a guide rod 76 and a guide hole 77. One end of the guide rod 76 is fixedly connected to the connecting plate 71, and the guide hole 77 is opened on the front of the positioning seat 73. The outer wall of the guide rod 76 is slidably sleeved with the inner cavity of the guide hole 77. The guide rod 76 can guide and limit the connecting plate 71 again, thereby ensuring the stability of the connecting plate 71 in the snap-fit ​​installation of the control circuit board 5.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooling fan controllable power supply, characterized by, include: A first frame (1) and a second frame (2), wherein the second frame (2) is mounted on the back of the first frame (1); Mounting housing (3), the outer wall of which is fixedly connected to the first frame (1); The fan body (4) is mounted on the back of the mounting housing (3) via the second frame (2); A control circuit board (5) is disposed inside the mounting housing (3); A cover (6) is mounted on the mounting housing (3) and is used to shield and protect the control circuit board (5). A limiting component (7) is disposed inside the mounting housing (3), and the limiting component (7) limits the installation of the control circuit board (5) through the cover (6).

2. A power supply with controllable cooling fan according to claim 1, characterized in that, Also includes: A fixing block (8) is fixedly connected to the side of the cover (6), and a groove matching the fixing block (8) is provided on the front of the mounting housing (3); An inner bolt (9) is provided on a fixing block (8), and the fixing block (8) is fixedly connected to the mounting housing (3) by the inner bolt (9).

3. A power supply with controllable cooling fan according to claim 1, characterized in that, The limiting component (7) includes: A connecting plate (71) is disposed inside the mounting housing (3), and a snap-fit ​​groove matching the control circuit board (5) is provided on one side of the connecting plate (71). A fixing rod (72) is fixedly connected at one end to the cover plate (6), and the outer wall of the fixing rod (72) is slidably inserted into the connecting plate (71).

4. A cooling fan controllable power supply as claimed in claim 3, characterized in that, The limiting component (7) also includes; A rubber sleeve (74) is slidably sleeved on the outside of a fixed rod (72), and the rubber sleeve (74) is located on one side of a connecting plate (71); A limiting spring (75) is slidably sleeved on the outside of the fixing rod (72) and the limiting spring (75) is located on the other side of the connecting plate (71).

5. A cooling fan controllable power supply as claimed in claim 4, wherein, The limiting component (7) also includes a positioning seat (73), which is fixedly connected to the inside of the mounting housing (3). The front of the positioning seat (73) has a through hole that matches the fixing rod (72), and the front of the positioning seat (73) has a positioning groove that matches the rubber sleeve (74).

6. A cooling fan controllable power supply as claimed in claim 5, characterized in that, The limiting component (7) also includes: Guide rod (76), one end of which is fixedly connected to connecting plate (71); A guide hole (77) is provided on the front of the positioning seat (73), and the outer wall of the guide rod (76) is slidably sleeved with the inner cavity of the guide hole (77).

Images