Motor rear cover with fan blades for heat dissipation

Abstract

The utility model relates to a heat dissipation motor rear cover with fan blades, comprising a rear cover outer cover which comprises an outer cover main body and a support ring body; the fan blade assembly is mounted in the middle of the rear cover outer cover; the fan blade assembly comprises a bearing, a central shaft and fan blades; the fan blades are located in the outer cover body and used for being coaxially connected with a motor rotor. The rear cover inner cover is matched and connected with the rear cover outer cover; the rear cover inner cover comprises an inner cover main body, a baffle plate and a cushioning pad; the inner cover main body and the outer cover main body are matched and butted, and the cushioning pad is clamped between the inner cover main body and the outer cover main body; the baffle is used for isolating the fan blades from the motor rotor. The heat dissipation motor rear cover with the fan blades is simple in structure and convenient to use, the fan blades are rotatably installed in the middle of the rear cover outer cover, the fan blades and the motor rotor are coaxially installed, heat dissipation is conducted through driving of the motor rotor, extra installation space is not needed, the whole heat dissipation system is more compact, extra heat dissipation parts and connecting pieces are reduced, and the heat dissipation efficiency is improved. And the complexity and the failure rate of the system are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motor back covers, in particular to a motor back cover with fan blades for heat dissipation. Background Art

[0002] Motor is the transliteration of motor, commonly known as electric motor or electric motor, which is a power device usually used to provide mechanical force, and its output is expressed as torque and speed. Motors are widely used in various equipment and machinery, such as refrigerator compressors, air conditioner compressors, range hoods, ovens, car seat motors, cooling and heat dissipation motors, etc.

[0003] The motor generates a lot of heat during operation. If too much heat accumulates, it may burn the motor and affect the normal operation of the equipment. Therefore, measures need to be taken to dissipate the heat generated by the motor, usually requiring additional heat sinks, fans, and corresponding mounting brackets or connectors. These additional components need to take into account their size, shape, and installation location, which may make the overall motor design complicated or limited, and may even require sacrificing space for some other components or functions, thus affecting the overall performance and function of the equipment. Utility Model Content

[0004] Based on this, the utility model provides a motor back cover with fan blades for heat dissipation, which has a simple structure and is easy to use. The fan blades are rotatably installed in the middle part of the rear cover outer cover. The fan blades are installed coaxially with the motor rotor, and heat is dissipated by the drive of the motor rotor. No additional installation space is required, making the entire heat dissipation system more compact, reducing additional heat dissipation components and connectors, and reducing the complexity and failure rate of the system.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] A rear cover of a motor with fan blades for heat dissipation, comprising:

[0007] The rear cover outer cover comprises an outer cover body and a supporting ring body coaxially arranged at one end of the outer cover body;

[0008] A fan blade assembly installed in the middle of the rear cover outer cover; the fan blade assembly includes a bearing installed on the support ring body, a central shaft installed inside the bearing, and a fan blade coaxially connected to the central shaft; the fan blade is located inside the outer cover body, and the fan blade is used to coaxially connect to the motor rotor; and

[0009] A rear cover inner cover that matches and connects to the rear cover outer cover; the rear cover inner cover includes an inner cover body, a baffle installed inside the inner cover body, and a shock-absorbing pad installed on an end surface of the inner cover body facing the outer cover body; the inner cover body matches and docks with the outer cover body, and the shock-absorbing pad is clamped between the inner cover body and the outer cover body; the baffle is used to isolate the fan blades from the motor rotor.

[0010] The above-mentioned motor back cover with fan blade heat dissipation has a simple structure and is easy to use. The fan blades are rotatably installed in the middle part of the rear cover outer cover. The fan blades are installed coaxially with the motor rotor. The heat is dissipated by the drive of the motor rotor. No additional installation space is required, making the entire heat dissipation system more compact, reducing additional heat dissipation components and connectors, and reducing the complexity and failure rate of the system.

[0011] In one of the embodiments, the rear cover outer cover also includes a plurality of transfer pins extending from the outer periphery of the support ring body toward the outer cover body; one end of the transfer pin is connected to the support ring body, and the other end of the transfer pin is connected to the outer cover body; the gap between adjacent transfer pins is used for heat dissipation.

[0012] In one embodiment, the outer cover body is arranged in a ring shape.

[0013] In one of the embodiments, a docking post is protruding from the middle of the fan blade facing the inner cover of the rear cover for coaxial connection with the motor rotor.

[0014] In one embodiment, the docking post is coaxially arranged with the central axis.

[0015] In one of the embodiments, a through hole is provided in the middle of the baffle, and the docking post passes through the through hole and is coaxially connected to the motor rotor.

[0016] In one of the embodiments, a plurality of openings are evenly spaced apart on the baffle plate, and the openings are used to connect opposite ends of the inner cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of a rear cover of a heat dissipation motor with fan blades according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A three-dimensional schematic diagram of another viewing angle of the rear cover of the motor with fan blades for cooling is shown;

[0019] Figure 3 for Figure 1 The exploded schematic diagram of the rear cover of the motor with fan blade cooling is shown;

[0020] Figure 4 for Figure 3 An exploded schematic diagram of another perspective of the rear cover of the motor with fan blades for cooling is shown;

[0021] Figure 5 for Figure 1 A cross-sectional view of the rear cover of a motor with fan blade cooling is shown.

[0022] Notes on the attached drawings:

[0023] 10-rear cover outer cover, 11-outer cover body, 12-support ring body, 13-transfer pin;

[0024] 20-fan blade assembly, 21-bearing, 22-center axis, 23-fan blade, 24-docking column;

[0025] 30-rear cover inner cover, 31-inner cover body, 32-baffle, 321-through hole, 322-opening hole, 33-shock-absorbing pad. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] See also Figures 1 to 5 , which is a motor back cover with fan blade heat dissipation in one embodiment of the utility model, includes a back cover outer cover 10, a fan blade assembly 20 installed in the middle of the back cover outer cover 10, and a back cover inner cover 30 matched and connected to the back cover outer cover 10; the fan blade assembly 20 is located between the back cover outer cover 10 and the back cover inner cover 30, and no additional installation space is required, making the entire heat dissipation system more compact, reducing additional heat dissipation components and connectors, and reducing the complexity and failure rate of the system.

[0030] The rear cover 10 includes a cover body 11, a support ring 12 coaxially arranged at one end of the cover body 11, and a plurality of transfer pins 13 extending from the outer periphery of the support ring 12 toward the cover body 11; one end of the transfer pin 13 is connected to the support ring 12, and the other end of the transfer pin 13 is connected to the cover body 11 to achieve a fixed connection between the support ring 12 and the cover body 11. The gap between adjacent transfer pins 13 is used for heat dissipation.

[0031] In this embodiment, the outer cover body 11 is substantially arranged in a ring shape.

[0032] The fan blade assembly 20 includes a bearing 21 mounted on the support ring body 12, a central shaft 22 mounted inside the bearing 21, and a fan blade 23 coaxially connected to the central shaft 22. The fan blade 23 is located inside the outer cover body 11, and a docking column 24 is protruded from the middle of the side of the fan blade 23 facing the rear cover inner cover 30, which is used to coaxially connect to the motor rotor. When working, the motor rotor can synchronously drive the fan blade 23 to rotate for heat dissipation.

[0033] In this embodiment, the docking post 24 is coaxially disposed with the central axis 22 .

[0034] The rear cover inner cover 30 includes an inner cover body 31, a baffle 32 installed inside the inner cover body 31, and a shock absorbing pad 33 installed on an end surface of the inner cover body 31 facing the outer cover body 11. The inner cover body 31 is matched and docked with the outer cover body 11, and the shock absorbing pad 33 is sandwiched between the inner cover body 31 and the outer cover body 11, which effectively reduces the vibration and noise generated by the rotation of the motor.

[0035] The baffle 32 is used to isolate the fan blades 23 from the motor rotor. Specifically, a through hole 321 is provided in the middle of the baffle 32. The docking post 24 of the fan blade 23 is coaxially connected to the end of the motor rotor after passing through the through hole 321. A plurality of openings 322 are evenly spaced on the baffle 32. The openings 322 are used to connect the opposite ends of the inner cover body 31 to facilitate heat dissipation inside the motor. During actual operation, the motor rotor is powered to rotate. Since the motor rotor is coaxially connected to the fan blades 23, that is, the motor rotor drives the fan blades 23 to rotate synchronously to roll up the airflow, and the heat inside the motor is discharged to the outside through the gap between the opening 322 and the adapter pin 13, thereby greatly improving the heat dissipation efficiency. Compared with the traditional external radiator structure, the utility model does not require additional installation space, making the entire heat dissipation system more compact, reducing additional heat dissipation components and connectors, and reducing the complexity and failure rate of the system.

[0036] In this embodiment, the inner cover body 31 is substantially arranged in a ring shape.

[0037] The above-mentioned motor back cover with fan blade heat dissipation has a simple structure and is easy to use. The fan blades 23 are rotatably installed in the middle part of the rear cover outer cover 10. The fan blades 23 are installed coaxially with the motor rotor. The heat is dissipated by the drive of the motor rotor. No additional installation space is required, which makes the entire heat dissipation system more compact, reduces additional heat dissipation components and connectors, and reduces the complexity and failure rate of the system.

[0038] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A rear cover of a motor with fan blades for heat dissipation, characterized in that: include: The rear cover outer cover comprises an outer cover body and a supporting ring body coaxially arranged at one end of the outer cover body; A fan blade assembly installed in the middle of the rear cover outer cover; the fan blade assembly includes a bearing installed on the support ring body, a central shaft installed inside the bearing, and a fan blade coaxially connected to the central shaft; the fan blade is located inside the outer cover body, and the fan blade is used to coaxially connect to the motor rotor; and A rear cover inner cover that matches and connects to the rear cover outer cover; the rear cover inner cover includes an inner cover body, a baffle installed inside the inner cover body, and a shock-absorbing pad installed on an end surface of the inner cover body facing the outer cover body; the inner cover body matches and docks with the outer cover body, and the shock-absorbing pad is clamped between the inner cover body and the outer cover body; the baffle is used to isolate the fan blades from the motor rotor.

2. The motor back cover with fan blade heat dissipation according to claim 1, characterized in that: The rear cover outer cover also includes a plurality of transfer pins extending from the outer peripheral edge of the support ring body toward the outer cover body; one end of the transfer pin is connected to the support ring body, and the other end of the transfer pin is connected to the outer cover body; The gaps between adjacent transfer pins are used for heat dissipation.

3. The motor back cover with fan blade heat dissipation according to claim 1, characterized in that: The outer cover body is arranged in a ring shape.

4. The motor back cover with fan blade heat dissipation according to claim 1, characterized in that: A docking post is also protrudingly provided in the middle of the fan blade facing the inner cover of the rear cover for coaxially connecting with the motor rotor.

5. The motor back cover with fan blade heat dissipation according to claim 4, characterized in that: The docking column is coaxially arranged with the central axis.

6. The motor back cover with fan blade heat dissipation according to claim 4, characterized in that: A through hole is provided in the middle of the baffle, and the docking column passes through the through hole and is coaxially connected to the motor rotor.

7. The motor back cover with fan blade heat dissipation according to claim 1, characterized in that: A plurality of openings are evenly spaced on the baffle, and the openings are used to connect the two opposite ends of the inner cover body.

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