Abnormal noise detection device for direct-current fan

Abstract

The utility model discloses a direct current fan abnormal sound detection device, and relates to the technical field of direct current fan detection devices. The abnormal sound detection device for the direct-current fan comprises a direct-current fan body, a sleeve is fixedly connected to the back face of the direct-current fan body, a sponge rod is fixedly connected to the interior of the sleeve, a rotating mechanism is fixedly connected to one end of the sleeve, and an adjusting mechanism is fixedly connected to one end of the rotating mechanism. And one end of the adjusting mechanism is fixedly connected with a microphone detector. According to the utility model, through the arrangement of the sound receiving mechanism, when the microphone detector is used for carrying out abnormal sound detection on the direct current fan, the sound receiving mechanism can be used for isolating external noise and receiving sound around the microphone detector so as to prevent the external noise from interfering the work of the microphone detector, mistakenly considering the noise as abnormal sound and causing judgment errors; when the microphone detector is close to the direct-current fan, the microphone detector can detect sound emitted by the direct-current fan and detect whether abnormal sound exists in the sound.

Description

Technical Field

[0001] The utility model relates to the technical field of DC fan detection devices, in particular to a DC fan abnormal noise detection device. Background Art

[0002] A DC fan is a common electric fan that is widely used in various devices, such as computers, refrigeration equipment, and household appliances. It uses a DC power supply (such as a battery or a DC power adapter) to drive the motor, and the rotation of the motor generates airflow.

[0003] Traditional DC fan abnormal sound detection devices mostly use microphone sensors to receive sound during the detection process. However, when using microphone sensors to receive sound, it is easy to receive other external noises. External noise may interfere with the signal acquisition of the microphone sensor, resulting in false alarms (normal sounds are misjudged as abnormal sounds) or missed alarms (failure to detect the real abnormal sounds), thus failing to effectively detect the existence of abnormal sounds and prone to errors.

[0004] Therefore, the present invention provides a DC fan abnormal noise detection device to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a device for detecting abnormal noise of a DC fan, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a DC fan abnormal sound detection device, comprising a DC fan body, a sleeve fixedly connected to the back of the DC fan body, a sponge rod fixedly connected to the interior of the sleeve, one end of the sleeve fixedly connected to a rotating mechanism, one end of the rotating mechanism fixedly connected to an adjusting mechanism, one end of the adjusting mechanism fixedly connected to a microphone detector, a slide groove A is provided on both sides of the microphone detector, a radio mechanism is slidably connected to the interior of the slide groove A, and a shock absorbing mechanism is fixedly connected to all four sides of the back of the DC fan body;

[0007] The radio mechanism includes an A slider, the outer surface of which is slidably connected to the inside of the A slide groove, one end of the A slider is fixedly connected to a telescopic sound receiving cover, and the inner side wall of the telescopic sound receiving cover is fixedly connected to a sponge pad.

[0008] Furthermore, the rotating mechanism includes an orbital ring, the front of which is fixedly connected to the back of the DC fan body, the surface of the orbital ring is provided with a groove, the inside of the groove is fixedly connected to a magnetic piece A, the surface of the magnetic piece A is adsorbed with a magnetic piece B, and the outer surface of the magnetic piece B is fixedly connected to a connecting block.

[0009] Furthermore, the adjustment mechanism includes a rotating plate, one end of which is fixedly connected to one end of the connecting block, a B slide groove is provided on the front of the rotating plate, a B slider is slidably connected inside the B slide groove, a threaded hole is provided on the surface of the B slider, and an A fixing bolt is threadedly connected inside the threaded hole.

[0010] Furthermore, the front of the B slider is fixedly connected to the A rotating block, and one side of the A rotating block is rotatably connected to the B rotating block via a B fixing bolt, and the outer surface of the B fixing bolt is threadedly connected to a nut.

[0011] Furthermore, the shock absorbing mechanism includes a shock absorbing pad A, one end of which is fixedly connected to the back of the DC fan body, the other end of which is fixedly connected to a damping rod, and one end of which is fixedly connected to a shock absorbing pad B.

[0012] Furthermore, a spring is sleeved on the outer surface of the damping rod, and both ends of the spring are fixedly connected to the inner side walls of the A shock-absorbing pad and the B shock-absorbing pad.

[0013] The beneficial effects of the utility model are:

[0014] The utility model uses a radio mechanism to detect abnormal sounds of a DC fan using a microphone detector. In order to avoid external noise interfering with the operation of the microphone detector and mistaking the noise for abnormal sounds, which leads to misjudgment, the radio mechanism can isolate external noise and receive sounds around the microphone detector. When the microphone detector is close to the DC fan, it can detect the sound emitted by the DC fan and detect whether there is abnormal sound therein. Through the provided rotating mechanism and adjusting mechanism, when the microphone detector is used to detect abnormal sounds of the DC fan, the rotating mechanism and adjusting mechanism can be used to rotate the microphone detector to multiple positions and angles, so that multiple positions can be detected, which is convenient for adjustment. Multiple detections can improve the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a DC fan abnormal noise detection device;

[0016] Figure 2 This is a schematic diagram of the structure of the rotating plate in the DC fan abnormal noise detection device;

[0017] Figure 3 This is a schematic diagram of the structure of the DC fan body in the DC fan abnormal noise detection device;

[0018] Figure 4 This is a schematic diagram of the structure of the track ring in the DC fan abnormal noise detection device;

[0019] Figure 5 This is a schematic diagram of the structure of the spring in the DC fan abnormal noise detection device.

[0020] In the figure: 1. DC fan body; 2. Sleeve; 3. Sponge rod; 4. Microphone detector; 5. Slider A; 6. Telescopic sound cover; 7. Sponge pad; 8. Track ring; 9. Magnetic plate A; 10. Magnetic plate B; 11. Connecting block; 12. Rotating plate; 13. Slider B; 14. Fixing bolt A; 15. Rotating block A; 16. Fixing bolt B; 17. Rotating block B; 18. Nut; 19. Shock absorber A; 20. Damping rod; 21. Shock absorber B; 22. Spring. DETAILED DESCRIPTION

[0021] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0022] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0023] In addition, numerous specific details are provided in the following specific examples to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, and components well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0024] Reference Figure 1-Figure 5 , this utility model provides two technical solutions:

[0025] Example 1:

[0026] A DC fan abnormal noise detection device includes a DC fan body 1, a sleeve 2 fixedly connected to the back of the DC fan body 1, a sponge rod 3 fixedly connected to the interior of the sleeve 2, one end of the sleeve 2 fixedly connected to a rotating mechanism, one end of the rotating mechanism fixedly connected to an adjusting mechanism, one end of the adjusting mechanism fixedly connected to a microphone detector 4, two sides of the microphone detector 4 are provided with a slide groove A, the interior of the slide groove A is slidably connected to a radio mechanism, and the back of the DC fan body 1 is fixedly connected to a shock absorbing mechanism on all four sides;

[0027] The radio structure includes an A slider 5, the outer surface of which is slidably connected to the inside of the A slide groove, one end of the A slider 5 is fixedly connected to a telescopic sound cover 6, and the inner side wall of the telescopic sound cover 6 is fixedly connected to a sponge pad 7.

[0028] When using the microphone detector 4 to detect abnormal sounds on the DC fan, in order to avoid external noise interfering with the operation of the microphone detector 4 and mistaking the noise for abnormal sounds, which leads to misjudgment, the radio mechanism can isolate the external noise and receive the sounds around the microphone detector 4. When the microphone detector 4 is close to the DC fan, it can detect the sound emitted by the DC fan and detect whether there is abnormal sound in it.

[0029] Example 2:

[0030] Based on Example 1:

[0031] The rotating mechanism includes a track ring 8, the front of the track ring 8 is fixedly connected to the back of the DC fan body 1, and a groove is provided on the surface of the track ring 8. The inside of the groove is fixedly connected to a magnetic piece A 9, and a magnetic piece B 10 is magnetically attracted to the surface of the magnetic piece A 9. The outer surface of the magnetic piece B 10 is fixedly connected to a connecting block 11. When the microphone detector 4 is used to detect abnormal noise of the DC fan, the microphone detector 4 can be rotated to multiple positions and angles by using the rotating mechanism and the adjusting mechanism. It can detect multiple positions and is easy to adjust. Multiple detections can improve the accuracy of the detection results.

[0032] The adjustment mechanism includes a rotating plate 12, one end of the rotating plate 12 is fixedly connected to one end of the connecting block 11, a B slide groove is provided on the front of the rotating plate 12, and a B slider 13 is slidably connected inside the B slide groove. A threaded hole is provided on the surface of the B slider 13, and an A fixing bolt 14 is connected to the internal thread of the threaded hole. When the angle of the microphone detector 4 needs to be adjusted, the angle of the microphone detector 4 is adjusted by adjusting the position of the A rotating block 15 and the B rotating block 17, and fixed by the B fixing bolt 16 and the nut 18.

[0033] The front of the B slider 13 is fixedly connected to the A rotating block 15 , and one side of the A rotating block 15 is rotatably connected to the B rotating block 17 via a B fixing bolt 16 , and a nut 18 is threadedly connected to the outer surface of the B fixing bolt 16 .

[0034] The shock absorbing mechanism includes a shock absorbing pad A 19 , one end of which is fixedly connected to the back of the DC fan body 1 , the other end of which is fixedly connected to a damping rod 20 , and one end of the damping rod 20 is fixedly connected to a shock absorbing pad B 21 .

[0035] A spring 22 is sleeved on the outer surface of the damping rod 20, and both ends of the spring 22 are fixedly connected to the inner walls of the A shock-absorbing pad 19 and the B shock-absorbing pad 21. In order to avoid excessive vibration when the DC fan body 1 is working, causing the microphone detector 4 to detect the vibration sound and mistakenly think it is an abnormal sound, resulting in errors in the detection results, the A shock-absorbing pad 19 and the B shock-absorbing pad 21 can play a shock-absorbing role. When the DC fan body 1 is working, the damping rod 20 is hydraulically extended and retracted, driving the spring 22 to bounce, thereby achieving a shock-absorbing effect, which can reduce the vibration of the detection device.

[0036] On the basis of Example 1 and Example 2: When it is necessary to detect abnormal sounds inside the DC fan body 1, adjust the position of the connecting block 11 inside the track ring 8, and use the A magnetic piece 9 and the B magnetic piece 10 to adsorb, so that the rotating plate 12 can be rotated and adjusted to the appropriate position, and then adjust the position of the B slider 13 inside the rotating plate 12. After the adjustment is completed, use the A fixing bolt 14 to fix it, so as to adjust the position of the microphone detector 4. When it is necessary to adjust the angle of the microphone detector 4, adjust the angle of the microphone detector 4 by adjusting the position of the A rotating block 15 and the B rotating block 17, and use the B fixing bolt 16 and the nut 18 to fix it. Then, slide the A slider 5 on both sides of the microphone detector 4, cover the outside of the microphone detector 4 with the telescopic sound cover 6, and there is a sponge inside the telescopic sound cover 6. The pad 7 can isolate external noise and receive the sound around the microphone detector 4. When the microphone detector 4 is close to the DC fan body 1, it can detect the sound emitted by the DC fan body 1 and detect whether there is any abnormal sound. During the detection, in order to avoid excessive vibration of the DC fan body 1 when working, causing the microphone detector 4 to detect the vibration sound and mistakenly believe it to be an abnormal sound, resulting in an error in the detection result, the A shock-absorbing pad 19 and the B shock-absorbing pad 21 can play a shock-absorbing role. When the DC fan body 1 is working, the damping rod 20 is hydraulically extended and retracted, driving the spring 22 to bounce, thereby achieving a shock-absorbing effect, which can reduce the vibration of the detection device, and then the sleeve 2 and the internal sponge rod 3 are used to enhance the shock absorption. Then, if no detection is required, the A magnetic sheet 9 and the B magnetic sheet 10 are separated, and the rotating plate 12 can be directly taken out.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A DC fan abnormal noise detection device, comprising a DC fan body (1), characterized in that: The back of the DC fan body (1) is fixedly connected to a sleeve (2), the interior of the sleeve (2) is fixedly connected to a sponge rod (3), one end of the sleeve (2) is fixedly connected to a rotating mechanism, one end of the rotating mechanism is fixedly connected to an adjusting mechanism, one end of the adjusting mechanism is fixedly connected to a microphone detector (4), both sides of the microphone detector (4) are provided with A slide grooves, the interior of the A slide grooves is slidably connected to a radio mechanism, and the four sides of the back of the DC fan body (1) are fixedly connected to a shock absorbing mechanism; The radio mechanism comprises an A slider (5), the outer surface of the A slider (5) is slidably connected to the inside of the A slide groove, one end of the A slider (5) is fixedly connected to a telescopic sound receiving cover (6), and the inner side wall of the telescopic sound receiving cover (6) is fixedly connected to a sponge pad (7).

2. The DC fan abnormal noise detection device according to claim 1, characterized in that: The rotating mechanism comprises an orbital ring (8), the front surface of the orbital ring (8) is fixedly connected to the back surface of the DC fan body (1), a groove is provided on the surface of the orbital ring (8), a magnetic sheet A (9) is fixedly connected inside the groove, a magnetic sheet B (10) is magnetically attracted to the surface of the magnetic sheet A (9), and a connecting block (11) is fixedly connected to the outer surface of the magnetic sheet B (10).

3. The DC fan abnormal noise detection device according to claim 1, characterized in that: The adjustment mechanism comprises a rotating plate (12), one end of the rotating plate (12) is fixedly connected to one end of the connecting block (11), a B slide groove is provided on the front of the rotating plate (12), a B slider (13) is slidably connected inside the B slide groove, a threaded hole is provided on the surface of the B slider (13), and an A fixing bolt (14) is threadedly connected inside the threaded hole.

4. A DC fan abnormal noise detection device according to claim 3, characterized in that: The front surface of the B sliding block (13) is fixedly connected to the A rotating block (15), and one side of the A rotating block (15) is rotatably connected to the B rotating block (17) via a B fixing bolt (16), and the outer surface of the B fixing bolt (16) is threadedly connected to a nut (18).

5. The DC fan abnormal noise detection device according to claim 1, characterized in that: The shock absorbing mechanism comprises an A shock absorbing pad (19), one end of the A shock absorbing pad (19) is fixedly connected to the back of the DC fan body (1), the other end of the A shock absorbing pad (19) is fixedly connected to a damping rod (20), and one end of the damping rod (20) is fixedly connected to a B shock absorbing pad (21).

6. The DC fan abnormal noise detection device according to claim 5, characterized in that: The outer surface of the damping rod (20) is sleeved with a spring (22), and both ends of the spring (22) are fixedly connected to the inner side walls of the A shock-absorbing pad (19) and the B shock-absorbing pad (21).

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