Cooling fan with sound attenuation and noise reduction functions

Abstract

The utility model relates to the field of fan equipment, and discloses a cooling fan with noise reduction function, which comprises a casing, the upper surface of the casing is detachably connected with a top plate, the left surface and the right surface of the casing are both provided with auxiliary components, and a clamping plate is slidably connected in a groove in the front surface of the casing. A plurality of groups of uniformly distributed heat dissipation grooves are formed in the bottom surface of the machine shell, a noise reduction assembly is arranged in the machine shell, the noise reduction assembly comprises a fixing plate, a supporting plate is fixedly connected to the rear surface in the machine shell, a motor is fixedly installed at the center of the lower surface of the supporting plate, and fan blades are fixedly installed on an output shaft of the motor. According to the utility model, through the mutual cooperation of the parts in the noise reduction assembly, the air flow passes through the noise reduction disc to form an effective air channel, the heat dissipation efficiency of the equipment is improved, the noise reduction disc is matched with the sound absorption cotton to wrap the air channel, the silence of the equipment is improved, and the heat dissipation and noise reduction effects of the equipment are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan equipment field especially, it is a heat dissipation fan with noise reduction function. BACKGROUND

[0002] With the popularity and the continuous enhancement of electronic equipment, the heat dissipation problem becomes the key factor influencing the stable operation and service life of equipment. As a common heat dissipation component in electronic equipment, the performance of heat dissipation fan directly influences the heat dissipation efficiency of equipment. Although the traditional heat dissipation fan can provide sufficient air volume to reduce the temperature of equipment, the noise problem generated when it works is also increasingly concerned by users. Noise not only influences the use experience of users, but also can cause damage to human hearing in high noise environment for a long time.

[0003] Through the retrieval, the patent announcement number of China: CN210343785U discloses a heat dissipation fan with stable noise reduction function, including main frame and fan blade, the back of main frame is equipped with vice board, and the main frame is arranged with the card rod between vice board, both sides of main frame are equipped with installation mechanism, and the inside of main frame is provided with cylinder, the fan blade is located at the outside of cylinder, and the cylinder is provided with circular slide between cylinder and vice board, the inside of cylinder is equipped with motor, and the motor is provided with rotating shaft between cylinder, the outside of rotating shaft is equipped with sound-absorbing pad, the front of main frame is provided with protection mechanism. The heat dissipation fan with stable noise reduction function is provided with cylinder and sound-absorbing pad, starts motor, makes rotating shaft rotate and drives cylinder and fan blade to rotate, so as to realize the purpose of heat dissipation, utilizes circular slide, makes cylinder more stable when rotating, and motor is in the inside of cylinder, cylinder can play the effect of sound insulation, and can realize the purpose of noise reduction in cooperation with the use of sound-absorbing pad.

[0004] The above-mentioned device has the following defects: when the fan rotates, the surface of the fan accelerates the flow of air, but the absence of air flow channels will cause the accelerated airflow to be chaotic, reducing the heat dissipation effect of the fan. The chaotic airflow will also produce noise in all directions, reducing the absorption effect of the sound-absorbing pad on the noise. Therefore, a heat dissipation fan with noise reduction function is proposed to solve the above problems. Utility model content

[0005] In order to make up for the above shortcomings, the utility model provides a heat dissipation fan with noise reduction function, which aims to improve the noise reduction problem in the fan heat dissipation process in the prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a heat dissipation fan with noise reduction function, including the casing, the upper surface of casing is detachably connected with the top board, the left and right surfaces of casing are evenly provided with auxiliary assembly, the front surface recess of casing is slidably connected with the clamping plate, the bottom surface of casing is provided with a plurality of evenly distributed heat dissipation grooves, the inside of casing is provided with the noise reduction assembly, the noise reduction assembly includes the fixed plate, the inside rear surface of casing is fixedly connected with the supporting plate, the lower surface center of supporting plate is fixedly installed with motor, the output shaft of motor is fixedly installed with the fan blade, the upper surface top corner of fixed plate is provided with the positioning groove, the inner wall of positioning groove is detachably connected with the noise reduction disc through the locating block.

[0007] As further description of the above technical scheme: the auxiliary assembly includes auxiliary plate, the auxiliary plate is fixedly installed in the left surface recess of casing through fixed bolt, the front surface of auxiliary plate is fixedly installed with a plurality of evenly distributed auxiliary strips, the rear surface of auxiliary plate is provided with the ventilation groove.

[0008] As further description of the above technical scheme: the outer wall of noise reduction disc is fixedly installed with a plurality of evenly distributed sound-absorbing cotton.

[0009] As further description of the above technical scheme: the locating block is fixedly connected on the outer wall of noise reduction disc.

[0010] As further description of the above technical scheme: the upper surface of fixed plate is provided with the circular recess, and the cross-sectional area of the circular recess of the upper surface of fixed plate and the cross-sectional area of the fan blade are adapted to each other.

[0011] As further description of the above technical scheme: the outer surface of auxiliary strip is provided as a semicircular arc structure, and the inside of auxiliary strip is provided as a hollow structure.

[0012] As further description of the above technical scheme: the left surface of fixed plate is fixedly connected to the inner wall left end of casing.

[0013] As further description of the above technical scheme: the fixed bolt is detachably connected in the recess of the left end of the front surface of auxiliary plate.

[0014] The utility model has the advantages of:

[0015] 1、in the utility model, through the mutual cooperation of the connecting relationship between the noise reduction disc, sound-absorbing cotton, locating block and other parts in the noise reduction assembly, the airflow forms an effective air duct through the noise reduction disc, improves the heat dissipation efficiency of the equipment, and the noise reduction disc cooperates with the sound-absorbing cotton to wrap the air duct, effectively absorbs the noise generated during the rotation of the fan blade and the sound generated by the airflow, improves the quietness of the equipment, and enhances the heat dissipation and noise reduction effect of the equipment.

[0016] 2、 The utility model discloses, through the mutual cooperation of the connecting relationship between the auxiliary plate, auxiliary strip, air exchange groove and other parts in the auxiliary assembly, improve the heat dissipation effect of the equipment, avoid the phenomenon that the dust directly enters the machine shell, improve the dustproof effect of the equipment, improve the convenience of the staff maintaining the equipment, and the functionality of the device is enriched. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A main body front view area schematic drawing of the heat dissipation fan with the noise reduction function is provided for the utility model;

[0018] Figure 2 A main body side view area schematic drawing of the heat dissipation fan with the noise reduction function is provided for the utility model;

[0019] Figure 3 A noise reduction disc local area parts explosion schematic drawing of the heat dissipation fan with the noise reduction function is provided for the utility model;

[0020] Figure 4 A machine shell internal area schematic drawing of the heat dissipation fan with the noise reduction function is provided for the utility model;

[0021] Figure 5 An auxiliary plate local area schematic drawing of the heat dissipation fan with the noise reduction function is provided for the utility model.

[0022] Legend:

[0023] 1, machine shell, 2, top plate, 3, clamping plate, 4, auxiliary assembly, 41, auxiliary plate, 42, fixed bolt, 43, auxiliary strip, 44, air exchange groove, 5, heat dissipation groove, 6, noise reduction assembly, 61, fixed plate, 611, positioning groove, 62, noise reduction disc, 621, positioning block, 622, sound-absorbing cotton, 63, fan blade, 631, support plate, 632, motor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Reference Figures 1-3This utility model provides an embodiment of a cooling fan with noise reduction function, including a housing 1. The housing 1 provides support and protection for the equipment. A top plate 2 is detachably connected to the upper surface of the housing 1. Users can obtain information about the components in the housing 1 through the light-transmitting plate on the top plate 2, which improves the convenience of maintenance and disassembly of the equipment. Auxiliary components 4 are provided on both the left and right surfaces of the housing 1. A retaining plate 3 is slidably connected in the groove on the front surface of the housing 1. Multiple sets of evenly distributed heat dissipation grooves 5 are opened on the bottom surface of the housing 1. The heat dissipation grooves 5 provide heat dissipation and ventilation for the bottom of the housing 1. Noise reduction components 6 are provided inside the housing 1.

[0026] Reference Figures 2-4 When the equipment is running, the noise reduction component 6 is activated. The noise reduction component 6 includes a fixing plate 61, the left surface of which is fixedly connected to the left end of the inner wall of the housing 1. A support plate 631 is fixedly connected to the rear inner surface of the housing 1. A motor 632 is fixedly installed at the center of the lower surface of the support plate 631. A fan blade 63 is fixedly installed on the output shaft of the motor 632. When the motor 632 is activated, it drives the fan blade 63 to rotate. Through the configuration of the heat dissipation slot 5, an upward airflow is formed inside the housing 1. A circular groove is formed on the upper surface of the fixing plate 61. The cross-sectional area of ​​the circular groove on the upper surface of the fixing plate 61 is matched with the cross-sectional area of ​​the fan blade 63. The noise reduction disk 62 concentrates the airflow, causing the airflow to pass through the noise reduction disk 62. An effective air duct is formed, improving the heat dissipation of the equipment. A positioning groove 611 is provided at the top corner of the upper surface of the fixing plate 61. The inner wall of the positioning groove 611 is detachably connected to the noise reduction plate 62 via the positioning block 621. The noise reduction plate 62, together with the sound-absorbing cotton 622, wraps the air duct, effectively absorbing the noise generated during the rotation of the fan blade 63 and the sound generated by the airflow. The positioning block 621 is fixedly connected to the outer wall of the noise reduction plate 62. Multiple sets of evenly distributed sound-absorbing cotton 622 are fixedly installed on the outer wall of the noise reduction plate 62, improving the quietness of the equipment and enhancing the heat dissipation and noise reduction effect of the equipment. When the equipment is not in use, the casing 1 is sealed by closing the top plate 2 and the card plate 3, enhancing the dustproof performance of the equipment.

[0027] Reference Figure 2 and Figure 5After the noise reduction component 6 is activated, the auxiliary component 4 is activated. The auxiliary component 4 includes an auxiliary plate 41. Multiple sets of evenly distributed auxiliary strips 43 are fixedly installed on the front surface of the auxiliary plate 41. The rear surface of the auxiliary plate 41 is provided with a ventilation groove 44. The auxiliary strips 43 and the ventilation groove 44 form a channel for air exchange with the outside, which improves the heat dissipation of the equipment. The outer surface of the auxiliary strips 43 is set as a semi-circular arc structure, and the inside of the auxiliary strips 43 is set as a hollow structure. The equipment on the outer wall of the auxiliary strips 43 effectively avoids the phenomenon of dust directly entering the housing 1, which improves the dustproof effect of the equipment. The auxiliary plate 41 is fixedly installed in the groove on the left surface of the housing 1 by fixing bolts 42. When the equipment needs to be maintained, the auxiliary component 4 can be quickly disassembled by fixing bolts 42. The fixing bolts 42 are detachably connected to the groove on the left end of the front surface of the auxiliary plate 41, which improves the convenience of maintenance by the staff and enriches the functionality of the device.

[0028] Working principle: When the equipment starts, the noise reduction component 6 is activated, and the motor 632 starts, driving the fan blades 63 to rotate. The cooling slots 5 create an upward airflow inside the casing 1. The noise reduction disk 62 gathers the airflow, forming an effective air duct and improving the equipment's heat dissipation. The noise reduction disk 62, together with the sound-absorbing cotton 622, wraps the air duct, effectively absorbing the noise generated during the rotation of the fan blades 63 and the sound produced by the airflow, improving the equipment's quietness and enhancing its heat dissipation and noise reduction effects. When no use is required... When the equipment is in use, the top plate 2 and the card plate 3 are closed to seal the casing 1, which enhances the dustproof performance of the equipment. After the noise reduction component 6 is activated, the auxiliary component 4 is activated. The auxiliary strip 43 and the ventilation slot 44 form a channel for air exchange with the outside, which improves the heat dissipation of the equipment. The equipment on the outer wall of the auxiliary strip 43 effectively prevents dust from directly entering the casing 1, thus improving the dustproof effect of the equipment. When the equipment needs maintenance, the auxiliary component 4 can be quickly disassembled by fixing bolts 42, which improves the convenience of maintenance for staff and enriches the functionality of the device.

[0029] 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 with noise reduction function, comprising a housing (1), characterized in that: The upper surface of the housing (1) is detachably connected to a top plate (2). The left and right surfaces of the housing (1) are provided with auxiliary components (4). A card plate (3) is slidably connected in the groove on the front surface of the housing (1). Multiple sets of evenly distributed heat dissipation slots (5) are opened on the bottom surface of the housing (1). A noise reduction component (6) is provided inside the housing (1). The noise reduction component (6) includes a fixing plate (61). A support plate (631) is fixedly connected to the rear surface inside the housing (1). A motor (632) is fixedly installed at the center of the lower surface of the support plate (631). A fan blade (63) is fixedly installed on the output shaft of the motor (632). A positioning groove (611) is opened at the top corner of the upper surface of the fixing plate (61). A noise reduction disk (62) is detachably connected to the inner wall of the positioning groove (611) through a positioning block (621).

2. A cooling fan with noise reduction function according to claim 1, characterized in that: The auxiliary component (4) includes an auxiliary plate (41), which is fixedly installed in the groove on the left surface of the housing (1) by fixing bolts (42). Multiple sets of evenly distributed auxiliary strips (43) are fixedly installed on the front surface of the auxiliary plate (41), and ventilation grooves (44) are opened on the rear surface of the auxiliary plate (41).

3. A cooling fan with noise reduction function according to claim 1, characterized in that: Multiple sets of evenly distributed sound-absorbing cotton (622) are fixedly installed on the outer wall of the noise reduction disk (62).

4. A cooling fan with noise reduction function according to claim 1, characterized in that: The positioning block (621) is fixedly connected to the outer wall of the noise reduction disk (62).

5. A cooling fan with noise reduction function according to claim 1, characterized in that: The upper surface of the fixing plate (61) is provided with a circular groove, and the cross-sectional area of ​​the circular groove on the upper surface of the fixing plate (61) is adapted to the cross-sectional area of ​​the fan blade (63).

6. A cooling fan with noise reduction function according to claim 2, characterized in that: The outer surface of the auxiliary strip (43) is configured as a semi-circular arc structure, and the interior of the auxiliary strip (43) is configured as a hollow structure.

7. A cooling fan with noise reduction function according to claim 1, characterized in that: The left surface of the fixing plate (61) is fixedly connected to the left end of the inner wall of the housing (1).

8. A cooling fan with noise reduction function according to claim 2, characterized in that: The fixing bolt (42) is detachably connected to the groove at the left end of the front surface of the auxiliary plate (41).

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