A DC brushless temperature-controlled speed-regulating cooling fan

Abstract

The utility model discloses a DC brushless temperature-controlled speed-regulating cooling fan, which relates to the field of cooling fans, including a cooling fan shell, the front and rear sides of the cooling fan shell are fixedly mounted with shell plates, the interior of the cooling fan shell is sleeved with a DC brushless motor body, the output shaft of the DC brushless motor body is fixedly mounted with fan blades through a coupling, and the outer wall of the cooling fan shell is provided with a support frame; the cooling fan shell is provided with two grooves at the upper and lower diagonals, the inner wall of the groove is provided with two threaded holes, and the inner wall of the groove is provided with a mounting seat. By providing bolts, threaded holes and screws, the cooling fan can be installed with a lighting lamp and the lighting angle can be adjusted, which is convenient for users to manually adjust the angle of the cooling fan at night, thereby improving the convenience and practicality of the cooling fan, and a temperature sensor body and a microcontroller body are provided, which can be self-monitored and controlled according to the ambient temperature, and have a temperature control and speed regulation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation fans, in particular to a direct current brushless temperature-controlled speed-regulating heat dissipation fan. Background Art

[0002] A heat dissipation fan, also known as a heat dissipation fan or a cooling fan, is a fan used to dissipate heat from equipment. Its main function is to drive air flow through rapid rotation, thereby transferring heat from the heat source (such as the CPU) and blowing it into the nearby air to achieve a cooling effect. This type of fan is usually used in computers, communication products, optoelectronic products, consumer electronics, automotive electronic equipment, medical equipment and other equipment.

[0003] For example, the announcement number CN110410345A discloses a high-temperature resistant DC brushless cooling fan, including a casing, a bearing sleeve fixed at the lower part of the casing, a bearing wrapped in the bearing sleeve, and a matching shaft passing through the bearing; the bottom of the bearing sleeve passes through the casing, and at least one heat dissipation hole is opened at the bottom of the bearing sleeve; a driving circuit board is also provided at the upper part of the bottom casing, a yoke plate is provided above the driving circuit board, and the shaft, bearing and bearing sleeve all pass through the driving circuit board and the yoke plate; two hollow coils are provided on the yoke plate, and the hollow coils are symmetrically distributed on both sides of the shaft; the leads of the hollow coils are connected to the driving circuit board, and the wires are led out from the driving circuit board to the outside of the casing; the upper part of the shaft is connected to the integrally formed fan blades, and a magnetic steel is provided at the position opposite to the hollow coil under the fan blades. The hollow coil structure is conducive to the heat dissipation of the coil and effectively reduces the temperature rise. The cooling fan uses ferrite magnets with very good temperature resistance and high cost performance. The magnetic force of the magnets can be easily adjusted by increasing the thickness of the magnets. However, the cooling fan has other shortcomings when in use. First, the cooling fan is not equipped with a night lighting structure, which makes it inconvenient for users to manually adjust the angle of the cooling fan at night, and it is impossible to monitor and control the speed according to the ambient temperature. As a result, the cooling fan is always rotating at a high speed, which can easily lead to excessive use of the fan and shorten the life of the fan. Therefore, there are still certain shortcomings when using the device. Utility Model Content

[0004] The utility model aims to provide a DC brushless temperature-controlled speed-regulating cooling fan to solve the problem raised in the above-mentioned background technology that when the cooling fans currently on the market are in use, firstly, the cooling fans are not provided with a nighttime lighting structure, so that it is inconvenient for users to manually adjust the angle of the cooling fans at night, and the cooling fans cannot be automatically monitored and controlled according to the ambient temperature, so that the cooling fans are always rotating at a high speed, which easily leads to excessive use of the fans and shortens the life of the fans.

[0005] To achieve the above object, the utility model provides the following technical solutions: a brushless DC temperature-controlled speed-regulating cooling fan, comprising a cooling fan shell, the front and rear sides of the cooling fan shell are fixedly mounted with shell plates, the interior of the cooling fan shell is sleeved with a brushless DC motor body, the output shaft of the brushless DC motor body is fixedly mounted with fan blades through a coupling, and the outer wall of the cooling fan shell is provided with a support frame;

[0006] The cooling fan housing is provided with two grooves at the upper and lower diagonals, the inner wall of the groove is provided with two threaded holes, and the inner wall of the groove is provided with a mounting seat;

[0007] A temperature sensor body is arranged on the front side of one side of the support frame, and a circuit mounting board is fixedly mounted on one side of the support frame.

[0008] Furthermore, connecting plates are fixedly installed on the upper and lower sides of the mounting base, bolts are passed through the inside of the connecting plates and the ends are inserted into threaded holes, a threaded groove is opened inside one side of the mounting base, a screw rod is passed through the inner wall of the threaded groove, a lamp holder is fixedly installed on one side of the screw rod, and the front side of the lamp holder is fixedly connected to the lighting bulb body.

[0009] Furthermore, a control panel is fixedly mounted on the top of one side of the circuit mounting board, and a microcontroller processor body is arranged on the bottom of one side of the circuit mounting board.

[0010] Furthermore, the support frame is fixedly connected to the shell plate via a hinged seat, and the support frame is configured as a U-shaped structure.

[0011] Furthermore, the mounting seat and the groove are connected in a detachable manner, and the shell plate, the groove and the threaded hole are integrated.

[0012] Furthermore, the thread groove and the screw rod are threadedly connected, and an internal thread is provided inside the thread groove.

[0013] Furthermore, the microcontroller body is electrically connected to the control panel via a wire harness, and the receiving end of the microcontroller body is electrically connected to the output end of the temperature sensor body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The DC brushless temperature-controlled speed-regulating cooling fan can be equipped with a lighting lamp and the lighting angle can be adjusted by setting bolts, threaded holes and screws, so that the user can adjust the angle of the cooling fan manually at night, thereby improving the convenience and practicality of the cooling fan. In addition, a temperature sensor body and a microcontroller body are provided, which can monitor and control the ambient temperature automatically, and have a temperature-controlled speed-regulating effect. The specific contents are shown below:

[0016] 1. Bolts and threaded holes are provided. Each mounting seat is manually placed in the corresponding groove, and each bolt is inserted through the connecting plate into the corresponding threaded hole, so that the lighting bulb body provided in the mounting seat is fixedly installed in the shell plate connected to the cooling fan shell, which is convenient for installing the lighting lamp on the cooling fan;

[0017] Furthermore, a screw rod is provided, and the screw rod and the internal thread in the thread groove are threadedly rotated by manually rotating the corresponding screw rod, so that the screw rod drives the lighting bulb body connected to the lamp holder to rotate up and down, and the maximum rotation up and down is 45 degrees, which is convenient for adjusting the lighting angle of the cooling fan, and convenient for users to manually adjust the angle of the cooling fan at night, thereby improving the convenience and practicality of the cooling fan;

[0018] 2. A temperature sensor body and a microcontroller body are provided, and the temperature sensor body monitors the ambient temperature at time intervals, so that the temperature sensor body transmits the monitored temperature signal to the microcontroller body, so that the microcontroller body receives the temperature signal in real time, calculates the fan speed information according to the temperature signal, and outputs the fan speed information to control the DC brushless motor body to drive the fan blade rotation speed, so that it can perform self-monitoring and control according to the ambient temperature, and has the effect of temperature control and speed regulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a side view of the structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the partial structure of the heat dissipation fan housing and fan blades of the utility model;

[0022] Figure 4 This is a schematic diagram of the partial structure of the brushless DC motor body and fan blades of the utility model;

[0023] Figure 5 This is a schematic diagram of the local structure of the mounting seat of the utility model;

[0024] Figure 6 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0025] In the figure: 1. cooling fan housing; 2. housing plate; 3. DC brushless motor body; 4. fan blades; 5. support frame; 6. groove; 7. threaded hole; 8. mounting base; 9. connecting plate; 10. bolt; 11. threaded groove; 12. screw; 13. lamp holder; 14. lighting bulb body; 15. temperature sensor body; 16. circuit mounting board; 17. control panel; 18. microcontroller body. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 6 , the utility model provides the following technical solutions:

[0028] Embodiment 1: In order to solve the problem that the cooling fan on the market is not provided with a nighttime lighting structure when in use, so that it is inconvenient for the user to manually adjust the angle of the cooling fan at night, and the cooling fan cannot be automatically monitored and controlled according to the ambient temperature, so that the cooling fan is always rotating at a high speed, which easily leads to excessive use of the fan and shortens the life of the fan. For reference, the following embodiment can be used. Figure 1 , Attachment Figure 3 and attached Figure 5 -Attached Figure 6 , comprising a cooling fan shell 1, a shell plate 2 is fixedly installed on the front and rear sides of the cooling fan shell 1, a DC brushless motor body 3 is sleeved inside the cooling fan shell 1, a fan blade 4 is fixedly installed on the output shaft of the DC brushless motor body 3 through a coupling, and a support frame 5 is arranged on the outer wall of the cooling fan shell 1; two grooves 6 are provided at the upper and lower diagonals of the cooling fan shell 1, two threaded holes 7 are provided on the inner wall of the groove 6, and a mounting seat 8 is arranged on the inner wall of the groove 6; a connecting plate 9 is fixedly installed on the upper and lower sides of the mounting seat 8, a bolt 10 is penetrated inside the connecting plate 9 and the end is inserted into the threaded hole 7, a thread groove 11 is provided inside one side of the mounting seat 8, a screw rod 12 is penetrated on the inner wall of the thread groove 11, a lamp holder 13 is fixedly installed on one side of the screw rod 12, and a lighting bulb body 14 is fixedly connected to the front of the lamp holder 13. The mounting seat 8 and the groove 6 are detachably connected, and the shell plate 2 is integrated with the groove 6 and the threaded hole 7. The thread groove 11 and the screw rod 12 are threadedly connected, and the thread groove 11 is provided with an internal thread. By manually placing each mounting seat 8 in the corresponding groove 6, each bolt 10 passes through the connecting plate 9 and is inserted into the corresponding threaded hole 7, so that the lighting bulb body 14 arranged in the mounting seat 8 is fixedly installed in the shell plate 2 connected to the cooling fan shell 1. According to environmental requirements, the corresponding screw 12 is manually rotated to make the screw 12 and the internal thread in the thread groove 11 threadably rotate, so that the screw 12 drives the lighting bulb body 14 connected to the lamp holder 13 to rotate up and down, and can rotate up and down up to forty-five degrees, which is convenient for installing the lighting lamp on the cooling fan and adjusting the lighting angle, and is convenient for users to manually adjust the angle of the cooling fan at night, thereby improving the convenience and practicality of the cooling fan.

[0029] Embodiment 2: It can monitor and control itself according to the ambient temperature, and has the effect of temperature control and speed regulation. Please refer to the attached Figure 1 -Attached Figure 5 A temperature sensor body 15 is arranged on the front of one side of the support frame 5, and a circuit mounting board 16 is fixedly mounted on one side of the support frame 5. A control panel 17 is fixedly mounted on the top of one side of the circuit mounting board 16, and a microcontroller body 18 is arranged on the bottom of one side of the circuit mounting board 16. The microcontroller body 18 is electrically connected to the control panel 17 through a wire harness, and the receiving end of the microcontroller body 18 is electrically connected to the output end of the temperature sensor body 15. By setting the model of the temperature sensor body 15 to LM35 and the model of the microcontroller body 18 to TMS320F2802PZA, the temperature sensor body 15 monitors the ambient temperature at time intervals. The time interval is set by the control panel 17 as required. The receiving end of the temperature sensor body 15 is connected to the output end of the control panel 17. Generally, the time interval is 5-60s. Thus, the temperature sensor body 15 transmits the monitored temperature signal to the microcontroller body 18, so that the microcontroller body 18 receives the temperature signal in real time, converts the fan speed information according to the temperature signal, and outputs the fan speed information to control the DC brushless motor body 3 to drive the fan blade 4 to rotate. Thus, the self-monitoring and control can be performed according to the ambient temperature, and the temperature control and speed regulation effect is achieved.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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 should be included in the protection scope of the present invention.

Claims

1. A brushless DC temperature-controlled speed-regulating cooling fan, comprising a cooling fan housing (1), housing plates (2) being fixedly mounted on both the front and rear sides of the cooling fan housing (1), a brushless DC motor body (3) being sleeved inside the cooling fan housing (1), a fan blade (4) being fixedly mounted on the output shaft of the brushless DC motor body (3) via a coupling, and a support frame (5) being arranged on the outer wall of the cooling fan housing (1); Features: The heat dissipation fan housing (1) is provided with two grooves (6) at the upper and lower diagonals, the inner wall of the groove (6) is provided with two threaded holes (7), and the inner wall of the groove (6) is provided with a mounting seat (8); A temperature sensor body (15) is provided on the front side of one side of the support frame (5), and a circuit mounting plate (16) is fixedly mounted on one side of the support frame (5).

2. A brushless DC temperature-controlled speed-regulating cooling fan according to claim 1, characterized in that: The upper and lower sides of the mounting seat (8) are fixedly mounted with connecting plates (9), the interior of the connecting plate (9) is penetrated by a bolt (10) and the end is inserted into a threaded hole (7), a threaded groove (11) is provided inside one side of the mounting seat (8), a screw rod (12) is penetrated through the inner wall of the threaded groove (11), a lamp holder (13) is fixedly mounted on one side of the screw rod (12), and the front side of the lamp holder (13) is fixedly connected to a lighting bulb body (14).

3. A brushless DC temperature-controlled speed-regulating cooling fan according to claim 1, characterized in that: A control panel (17) is fixedly mounted on the top of one side of the circuit mounting board (16), and a microcontroller processor body (18) is arranged on the bottom of one side of the circuit mounting board (16).

4. A brushless DC temperature-controlled speed-regulating cooling fan according to claim 1, characterized in that: The support frame (5) is fixedly connected to the shell plate (2) via a hinge seat, and the support frame (5) is configured as a U-shaped structure.

5. A brushless DC temperature-controlled speed-regulating cooling fan according to claim 1, characterized in that: The mounting seat (8) and the groove (6) are connected in a disassembly manner, and the shell plate (2), the groove (6) and the threaded hole (7) are integrated.

6. A brushless DC temperature-controlled speed-regulating cooling fan according to claim 2, characterized in that: The thread groove (11) and the screw rod (12) are threadedly connected, and an internal thread is provided inside the thread groove (11).

7. A brushless DC temperature-controlled speed-regulating cooling fan according to claim 3, characterized in that: The microcontrol processor body (18) is electrically connected to the control panel (17) via a wire harness, and the receiving end of the microcontrol processor body (18) is electrically connected to the output end of the temperature sensor body (15).

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