Heat dissipation structure of air blower motor
By installing guide vanes on the fan wheel guide, the problem of poor heat dissipation of the blower motor is solved, achieving effective heat dissipation and cooling, extending the service life of the motor and improving the air delivery quality.
Patent Information
- Application Number
- CN202422983981.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing blower motors have difficulty dissipating heat when running at high speeds, leading to high temperature buildup, which affects the motor's lifespan and the quality of air delivery.
A guide vane is installed on the fan wheel's guide component. The blade of the guide vane scrapes the vent on the motor housing to dissipate hot air, and the hot air is carried out by the fan blades, thus avoiding the formation of a closed air chamber by high-speed vortex.
It effectively reduces motor operating temperature, decreases the chance of damage, extends service life, and improves air delivery quality and economic benefits.
Smart Images
Figure CN223689967U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of a blower, and particularly relates to a blower motor heat dissipation structure. BACKGROUND
[0002] Blowers are widely used in various places requiring air suction, air exchange or exhaust, such as kitchen or cooking stoves, to quickly exhaust waste gas. The structure of the existing blower generally comprises a hollow casing and a fan set. The casing top end has an eccentric exhaust port, and the two sides of the casing each have a corresponding air inlet. A motor is arranged between the two air inlets in the casing, and the fan set is arranged on the two end output shafts of the motor and has a corresponding fan wheel. When the motor drives the two fan wheels to rotate at high speed, air is introduced from the two air inlets of the casing and is exhausted from the exhaust port of the casing top end by centrifugal action.
[0003] Since the motor is arranged between the two fan wheels of the fan set, a closed air chamber formed by high-speed rotation is generated between the two fan wheels, so that the air flow between the two fan wheels is difficult to be exhausted to form a vortex, and the hot air generated by the high-speed rotation of the motor cannot be smoothly exhausted, which directly affects the heat dissipation and cooling effect of the motor during operation. If the high temperature cannot be dissipated, the motor is easily damaged, thereby affecting the air supply quality and service life of the blower.
[0004] In other words, the existing blower has the problem of motor heat dissipation, which causes the motor to have the phenomenon of not easy heat dissipation and cooling during operation. How to solve the foregoing problem is a topic that the industry and users are eager to explore, and is also a topic that the utility model wants to explore and solve.
[0005] In view of the above-mentioned defects and needs, the applicant believes that it is necessary to make further corrections, and based on many years of experience in related technology and product design and manufacturing, the applicant studies the above-mentioned defects and actively seeks solutions. After continuous efforts in research and trial production, a blower motor heat dissipation structure is successfully developed, so as to overcome the inconvenience caused by the poor heat dissipation of the existing blower. CONTENT OF THE UTILITY MODEL
[0006] The main purpose of the utility model is to provide a blower motor heat dissipation structure, so that the air flow in the motor can be effectively exhausted, without forming a closed air chamber due to high-speed vortex, thereby achieving the purpose of heat dissipation.
[0007] Another main purpose of the utility model is to provide a blower motor heat dissipation structure, which can avoid the accumulation of high temperature in the motor, thereby effectively reducing the operating temperature of the motor to reduce the probability of damage to the motor, thereby prolonging the service life of the motor.
[0008] To this end, the utility model mainly through the following technical means, to realize the above-mentioned purpose and efficiency, it contains a motor and a fan group, the motor has the motor shell of covering a motor and the output shaft driven by the motor, again the motor shell both sides wall surface respectively formed with plurality of air holes, and the output shaft at least one end passes through the motor shell wall surface, and the fan group has at least one fan wheel arranged on the output shaft end, each fan wheel has a fan disc, and the fan disc periphery has plurality of equidistance arranged fan blade, further each fan blade on opposite the fan disc both sides surface respectively surround to form corresponding the motor a inner ring space and different from the motor a outer ring space;
[0009] Among them, at least one of each fan wheel is provided with a flow guide piece, and the flow guide piece is arranged in the fan disc adjacent to the inner ring space of the motor, and the flow guide piece has a plurality of equiangularly arranged flow guide pieces, and the end section of the flow guide piece is adjacent to the motor and has a thin blade part and a thick back part.
[0010] Through the specific implementation of the foregoing technical means, the air blower motor heat dissipation structure of the utility model can utilize the flow guide piece arranged on the surface adjacent to the motor of the fan wheel, and utilize the design of the plurality of flow guide pieces of the flow guide piece. When the fan wheel rotates at high speed, each flow guide piece can scrape the hot air emitted from the air hole of the motor by the blade part, and is taken out by the disturbance of the fan blade, so that the closed air chamber is not generated due to high-speed vortex. The utility model can avoid the accumulation of high temperature of the motor, effectively reduce the operating temperature of the motor, reduce the damage probability of the motor, prolong the service life of the motor, improve the practicability of the motor, and further improve the added value and economic benefit of the motor.
[0011] And the utility model further realizes the foregoing object and effect by using the following technical means, such as:
[0012] The flow guide piece of the flow guide piece can be formed on the outer circumferential surface of an installation disc body, and the shaft hole coaxial with the fan disc is arranged on the shaft center of the installation disc body. A plurality of combination perforations are formed on the circumferential surface of the shaft hole, and a plurality of corresponding combination lock holes are arranged on the fan disc, so that the installation disc body of the flow guide piece is locked on the side surface of the motor shell corresponding to the fan disc by using a plurality of locking members.
[0013] The shaft hole of the fan disc coaxial with the output shaft of the motor is arranged on the shaft center of the fan disc, so that the fan disc can be locked on the output shaft of the motor by using the shaft hole.
[0014] The flow guide piece is formed on the surface of the fan disc adjacent to the motor shell, and the installation ring body is coaxial with the fan disc, and each flow guide piece is arranged on the outer circumferential surface of the installation ring body.
[0015] The fan wheel shaft group of the fan group is provided with a convex shaft member, and the fan wheel can be locked to the output shaft rod of the motor by using the convex shaft member.
[0016] The fan blades of the fan wheel are arc-shaped structures that are recessed in a direction opposite to the rotation direction of the output shaft rod, and the guide vanes are also arc-shaped structures, and the recessed direction of the guide vanes is opposite to the recessed direction of the fan blades, so that the guide vanes have a multi-inclination air guide surface on the recessed surface.
[0017] The motor can be a double-shaft motor, and the output shaft rod can be a double-end output shaft rod that penetrates through the two side walls of the motor shell.
[0018] In order for the examiners to further understand the constitution, features and other purposes of the utility model, the following will describe some preferred embodiments of the utility model, and will be described in detail as follows in combination with the drawings, and will enable those skilled in the art to implement the embodiments. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative labor.
[0020] Figure 1 It is a three-dimensional appearance schematic diagram of a preferred embodiment of the utility model.
[0021] Figure 2 It is a three-dimensional exploded schematic diagram of a preferred embodiment of the utility model, which is used to illustrate the state and relative relationship of the main components.
[0022] Figure 3 It is a side view sectional schematic diagram of a preferred embodiment of the utility model, which is used to illustrate the running state and state of the utility model.
[0023] Figure 4 It is a three-dimensional appearance schematic diagram of another preferred embodiment of the utility model.
[0024] Figure 5 It is a three-dimensional exploded schematic diagram of another preferred embodiment of the utility model, which is used to illustrate the state and relative relationship of the main components.
[0025] Figure 6 It is a side view sectional schematic diagram of another preferred embodiment of the utility model, which is used to illustrate the running state and state of the utility model.
[0026] Wherein, 10: motor; 11: motor shell; 12: air hole; 15: output shaft; 20: fan group; 21: fan wheel; 22: fan disc; 220: fan disc; 23: shaft hole protrusion; 230: protruding shaft; 25: fan blade; 26: inner ring space; 27: outer ring space; 30: flow guide; 31: flow guide piece; 310: flow guide piece; 311: blade edge part; 312: blade back part; 315: air guide surface; 32: mounting disc body; 320: mounting ring body; 33: shaft hole; 341: combined perforation; 342: combined lock hole; 345: locking member. DETAILED DESCRIPTION
[0027] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described below in connection with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort fall within the scope of the present application.
[0028] In the specific embodiments of the present application and the components thereof illustrated by the drawings, all references to front and back, left and right, top and bottom, upper and lower, and horizontal and vertical are only for the convenience of description, and are not intended to limit the present application or to limit the components thereof to any position or spatial direction. The dimensions specified in the drawings and the description can be changed according to the design and requirements of the present application without departing from the scope of the application.
[0029] The motor heat dissipation structure of the air blower of the present application is used in a motor shell of an air blower, as shown in Figure 1 , Figure 2 The motor heat dissipation structure of the air blower of the present application is used in a motor shell of an air blower, as shown in
[0030] The motor (10) has a motor shell (11) covering a motor (not shown in the figure) and an output shaft (15) penetrating the center of the motor, and the two side walls of the motor shell (11) are respectively formed with a plurality of air holes (12) for the hot air generated by the motor in the motor (10) to diffuse out during operation. The motor (10) can be a double-shaft motor, and the output shaft (15) can be a double-headed output shaft with both ends penetrating the two side walls of the motor shell (11). The motor (10) is a double-shaft motor and the output shaft (15) is a double-headed output shaft, which is the best embodiment of the present application.
[0031] The fan set (20) is composed of two opposite fan wheels (21) arranged at both ends of the output shaft (15) of the motor (10). Each fan wheel (21) has a fan disc (22) with a shaft hole protrusion (23) arranged at the center of the fan disc (22) and capable of being locked to the output shaft (15). The periphery of the fan disc (22) is provided with a plurality of equally spaced fan blades (25). Each fan blade (25) is concave and curved in a direction opposite to the rotation direction of the output shaft (15). Furthermore, each fan blade (25) is formed around the two side surfaces of the fan disc (22) to form an inner ring space (26) corresponding to the motor (10) and an outer ring space (27) opposite to the motor (10).
[0032] The preferred embodiment of the utility model has the characteristics as shown in Figure 2 、 Figure 3 One of the fan wheels (21) of the fan set (20) is provided with a flow guide member (30). The flow guide member (30) is arranged in the fan disc (22) of the fan wheel (21) and inside the inner ring space (26) of the motor (10). The flow guide member (30) can rotate at high speed synchronously with the fan wheel (21). The flow guide member (30) has a plurality of flow guide vanes (31) arranged in an equiangular radial manner. Each flow guide vane (31) is concave and curved. The concave direction of each flow guide vane (31) is opposite to the concave direction of each fan blade (25). The end section of the flow guide vane (31) is provided with a thin blade portion (311) adjacent to the motor (10) and a thick back portion (312) adhered to the surface of the fan disc (22). The concave surface of the flow guide vane (31) is provided with a multi-inclination air guide surface (315). When the fan wheel (21) rotates at high speed, the air guide surface (315) of each flow guide vane (31) can drive the hot air of the motor (10) to be discharged from the air hole (12) of the motor shell (11) (as shown in Figure 3 ). The hot air is driven by each fan blade (25) of each fan wheel (21) and is discharged. The purpose of heat dissipation and temperature reduction is achieved.
[0033] Furthermore, each flow guide vane (31) of the flow guide member (30) can be formed on the outer periphery of a mounting disc body (32). The center of the mounting disc body (32) is provided with a shaft hole (33) corresponding to the shaft hole protrusion (23) of the fan disc (22) for the output shaft (15) to pass through. The periphery of the shaft hole (33) of the mounting disc body (32) is provided with a plurality of combined through holes (341). The fan disc (22) is provided with a plurality of combined locking holes (342) corresponding to the combined through holes (341). A plurality of locking members (345) are used to lock the mounting disc body (32) of the flow guide member (30) to the side surface of the fan disc (22) corresponding to the motor shell (11).
[0034] Therefore, the fan motor heat dissipation structure is formed, which has good air guiding effect and can improve heat dissipation effect.
[0035] The fan motor heat dissipation structure of the utility model in actual application is as disclosed in Figure 1 、 Figure 2 and Figure 3 , wherein the output shaft (15) of the motor (10) of the fan is provided with a fan group (20), the fan disc (22) of the fan wheel (21) on both sides of the fan group (20) is provided with a flow guide piece (30) on the surface of the inner ring space (26) adjacent to the motor (10), the flow guide piece (30) can rotate synchronously and at high speed with the fan wheel (21), the flow guide piece (30) has a multi-inclination air guiding surface (315), the heat generated by the air hole (12) on the motor shell (11) of the motor (10) can be moved by the blade part (311) of the flow guide piece (31) when the fan wheel (21) rotates at high speed, the multi-inclination air guiding surface (315) of the flow guide piece (31) drives the hot air to flow, and the hot air is brought out by the rotation of the fan blade (25) of the fan wheel (21), so that the motor (10) can achieve the purpose of heat dissipation and cooling, thereby prolonging the service life of the motor (10).
[0036] Furthermore, as shown in Figure 4 、 Figure 5 and Figure 6 , another preferred embodiment of the utility model is shown, wherein the fan group (20) is composed of two opposite fan wheels (21) arranged on both ends of the output shaft (15), each fan wheel (21) has a fan disc (220), the periphery of the fan disc (220) is provided with a plurality of equidistant fan blades (25), the shaft center of the fan disc (220) is provided with a convex shaft piece (230), the fan disc (220) is locked on both ends of the output shaft (15) of the motor (10) by the convex shaft piece (230), and the fan blade (25) is formed around the surface on both sides of the fan disc (220) to form an inner ring space (26) corresponding to the motor (10) and an outer ring space (27) different from the motor (10).
[0037] Further, at least one of the fan wheels (21) is integrally provided with a flow guide (30), and the flow guide (30) is arranged on the surface of the fan disc (22) adjacent to the inner ring space (26) of the motor (10). The flow guide (30) forms an annular mounting ring body (320) on the surface of the fan disc (220), and the mounting ring body (320) is coaxial with the fan disc (220). Further, the outer circumferential surface of the mounting ring body (320) is provided with a plurality of equiangularly arranged flow guide fins (310). The flow guide fins (310) can have an arc-shaped structure, and the recessed direction of the flow guide fins (310) is arranged in a reverse recessed manner relative to the fan blades (25). The end section of the flow guide fins (310) is provided with a relatively thin blade section (311) adjacent to the motor (10) and a relatively thick blade back section (312) abutting the surface of the fan disc (22). Thus, the arc-shaped recessed surface of the flow guide fins (310) has a multi-inclination air guide surface (315). When the fan wheel (21) rotates at a high speed, the air guide surface (315) of the flow guide fins (310) can drive the hot air of the motor (10) to be discharged from the air hole (12) of the motor shell (11) (as shown in FIG. 8), and the fan blades (25) of the fan wheel (21) drive the hot air to be discharged, so as to achieve the purpose of heat dissipation and cooling. Figure 6
[0038] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A blower motor heat dissipation structure, characterized by, The fan set has at least one fan wheel arranged at the end of the output shaft, each fan wheel has a fan disc, and the periphery of the fan disc has a plurality of equally spaced fan blades, and each fan blade is surrounded by an inner ring space corresponding to the motor and an outer ring space different from the motor on the opposite side surface of the fan disc. At least one of the fan wheels is provided with a flow guide, and the flow guide is arranged in the fan disc of the fan wheel adjacent to the inner ring space of the motor, and the flow guide has a plurality of equally angularly arranged flow guide pieces, and the end section of the flow guide piece is a thin blade part adjacent to the motor and a thick blade back part adhering to the surface of the fan disc.
2. The blower motor heat sink structure of claim 1, wherein The flow guide piece of the flow guide can be formed on the outer periphery of a mounting disc body, and the axis of the mounting disc body has a shaft hole coaxial with the axis of the fan disc, and the mounting disc body has a plurality of combined through holes formed around the shaft hole, and the fan disc has a plurality of corresponding combined lock holes, and a plurality of locking members are used to lock the mounting disc body of the flow guide to the side surface of the fan disc corresponding to the motor shell.
3. The blower motor heat sink structure of claim 2, wherein The axis of the fan disc has a shaft hole protrusion column that can be locked to the output shaft, so that the fan disc can be locked to the output shaft of the motor by the shaft hole protrusion column.
4. The blower motor heat sink structure of claim 1, wherein The flow guide forms an annular mounting ring body adjacent to the surface of the motor shell on the fan disc, and the mounting ring body is coaxial with the fan disc, and each flow guide piece is arranged on the outer periphery of the mounting ring body.
5. The blower motor heat sink structure of claim 4, wherein, The fan disc axis group of the fan set is provided with a protruding shaft member, so that the fan disc can be locked to the output shaft of the motor by the protruding shaft member.
6. The blower motor heat sink structure according to any one of claims 1 to 5, characterized by Each fan blade of each fan wheel is recessed in an arc-shaped structure opposite to the rotation direction of the output shaft, and each flow guide piece can be in an arc-shaped structure, and the recessed direction of each flow guide piece is arranged in a reverse recessed structure opposite to each fan blade, so that each flow guide piece has a multi-inclination air guide surface on the recessed surface of the arc-shaped structure.
7. The blower motor heat sink structure of claim 6, wherein The motor can be a double-shaft motor, and the output shaft can be a double-headed output shaft with both ends penetrating the side walls of the motor shell.