Air-cooled heat dissipation motor

Abstract

The utility model discloses an air-cooled heat dissipation motor, which relates to the technical field of heat dissipation and comprises a motor body, and a plurality of air outlet channels are arranged on the edge of the motor body. The end cover is connected to the motor body and is provided with an air inlet; the protective cover sleeves the motor body, an air inlet chamber is formed between the protective cover and the end cover, and the air inlet chamber is communicated with the air inlet and the air outlet channel; in the air outlet direction perpendicular to the air outlet channel, the air inlet cavity is divided into a first part close to the air outlet channel and a second part away from the air outlet channel, and the size of the first part is smaller than that of the second part so that airflow can pass through the air outlet channel after passing through the air inlet cavity and being pressurized. According to the air-cooled heat dissipation motor, the flow speed of the air flow passing through the air outlet channel can be increased by pressurizing the air flow, and the heat dissipation efficiency of the motor body is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology, and more specifically, to an air-cooled heat dissipation motor. Background Technology

[0002] When an electric motor is rotating, it generates a lot of heat inside, which needs to be dissipated in a timely manner to ensure the service life of the motor.

[0003] In related technologies, a fan is used to deliver airflow from the rear end cover to the surface of the motor housing for cooling. In this method, the airflow velocity depends on the fan, but excessive fan speed can easily generate high temperatures, thus preventing the production of a large airflow velocity.

[0004] In conclusion, how to increase airflow velocity is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a wind-cooled heat dissipation motor that can increase the airflow velocity and improve heat dissipation efficiency by pressurizing.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An air-cooled heat dissipation motor, comprising:

[0008] The motor body has several air outlet channels on its edge;

[0009] An end cap is connected to the motor body and is provided with an air inlet;

[0010] A protective cover is fitted onto the motor body, and an air inlet chamber is formed between the protective cover and the end cover. The air inlet chamber is connected to the air inlet and the air outlet.

[0011] Along the air outlet direction perpendicular to the air outlet channel, the air inlet chamber is divided into a first part close to the air outlet channel and a second part away from the air outlet channel. The volume of the first part is smaller than that of the second part, so that the airflow can be pressurized in the air inlet chamber before passing through the air outlet channel.

[0012] Preferably, the end cap includes a main body portion connected to the motor body and a protrusion portion extending along a first direction relative to the edge of the main body portion, the first direction being a direction away from the motor body.

[0013] Preferably, the outer periphery of both the protrusion and the main body is lower than or flush with the bottom surface of the air outlet channel.

[0014] Preferably, the motor body is provided with a plurality of heat dissipation fins evenly distributed around its circumference, and the air outlet channel is formed between two adjacent heat dissipation fins.

[0015] Preferably, at least one of the plurality of heat dissipation fins is provided with a fastening hole for connecting the protective cover.

[0016] Preferably, a plurality of spaced fastening holes are provided along the length of the heat dissipation fins, and the protective cover can be connected to any of the fastening holes to change the size of the air inlet chamber;

[0017] Alternatively, each of the multiple heat dissipation fins may be provided with a fastening hole, and the distance between the multiple fastening holes corresponding to the multiple heat dissipation fins and the end cap may be different. The protective cover may be connected to the fastening hole corresponding to any of the heat dissipation fins to change the size of the air inlet chamber.

[0018] Preferably, the length of the portion of the heat dissipation fin inside the protective cover is less than the length of the portion extending out of the protective cover, and the length direction of the heat dissipation fin is parallel to the air outlet direction of the air outlet channel.

[0019] Preferably, a plurality of air inlets of different diameters are provided along the outer periphery of the end cap, wherein any one of the air inlets is used to introduce airflow, and the other air inlets are closed.

[0020] Preferably, it also includes an air pipe connector, which is connected to any of the air inlets via a threaded connection.

[0021] Preferably, the outer periphery of the protective cover is provided with a positioning groove for positioning the air pipe connector, and the air pipe connector passes through the positioning groove and is connected to the air inlet.

[0022] The air-cooled motor provided by this utility model includes a motor body, an end cover, and a protective cover. The edge of the motor body is provided with several air outlet channels. The end cover is connected to the motor body and has an air inlet. Cooling air can be introduced into the air inlet chamber formed between the protective cover and the end cover through the air inlet. The cooling air can enter the air outlet channel through the air inlet chamber to dissipate heat on the surface of the motor body. Along the air outlet direction perpendicular to the air outlet channel, the air inlet chamber is divided into a first part close to the air outlet channel and a second part away from the air outlet channel. The volume of the first part is smaller than that of the second part. Due to the volume difference, the airflow entering the air inlet chamber can be pressurized before being sent to the air outlet channel. Through this pressurization, the airflow velocity in the air outlet channel can be effectively increased, and the temperature rise of the motor body can be effectively reduced.

[0023] The beneficial effects of this utility model are as follows: by dividing the air inlet chamber into a first part close to the air outlet channel and a second part far away from the air outlet channel, the volume of the first part is smaller than that of the second part, which can increase the air pressure in the air inlet chamber. The airflow can be pressurized in the air inlet chamber and then flow through the smaller first part to the air outlet channel, which can increase the airflow rate and improve the heat dissipation efficiency of the motor body. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 A schematic diagram of the air-cooled heat dissipation motor provided by this utility model;

[0026] Figure 2 This is an axial sectional view of the air-cooled heat dissipation motor provided by this utility model;

[0027] Figure 3 This is a radial sectional view of the air-cooled heat dissipation motor provided by this utility model;

[0028] Figure 4 This is a schematic diagram showing the distribution of the heat dissipation fins provided by this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the protective cover provided by this utility model.

[0030] Figures 1-5 In the accompanying drawings, the reference numerals include:

[0031] 1-Protective cover; 2-End cap; 3-Air pipe connector; 4-Heat dissipation fin; 5-Screw; 6-Air outlet channel; 7-Air inlet chamber; 8-Motor body; 11-Positioning groove; 12-Mounting hole; 21-Air inlet; 22-Protrusion; 23-Main body; 41-Fastening hole; 71-First part; 72-Second part. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] The core of this utility model is to provide an air-cooled heat dissipation motor, which can increase the airflow velocity by setting up an air inlet chamber 7 with a pressurization effect, so as to quickly and timely remove the heat of the motor body 8, improve the heat dissipation efficiency, and ensure the service life of the motor.

[0034] The air-cooled heat dissipation motor provided by this utility model includes a motor body 8, an end cover 2, and a protective cover 1. Please refer to the following for details. Figure 1 , Figure 2 , Figure 3 .

[0035] The motor body 8 has several air outlet channels 6 along its edge. The end cover 2 is connected to the motor body 8 and has an air inlet 21. An air inlet chamber 7 is formed between the protective cover 1 and the end cover 2. The airflow enters the air inlet chamber 7 through the air inlet 21 and is then sent to the air outlet channels 6 to cool the motor body 8.

[0036] Specifically, the several air outlet channels 6 set on the edge of the motor body 8 are channels formed by components protruding from the motor body 8. These channels can guide airflow out of the surface of the motor body 8 to remove the heat from the surface of the motor body 8 in a timely manner and ensure the service life of the motor.

[0037] The specific air outlet channel 6 can be vertical, trapezoidal, circular, or other shapes, without specific restrictions.

[0038] The specific area where the air outlet duct 6 is distributed on the motor body 8 is not limited. It can be distributed locally or densely distributed around the perimeter. The design can be flexibly made according to the actual heat dissipation requirements of the motor body 8.

[0039] The end cover 2 connected to the motor body 8 can be either a front cover or a rear cover, without much restriction. The connection can be made using screws 5 or other fasteners.

[0040] An air inlet chamber 7 is formed between the protective cover 1 and the end cover 2. Specifically, the two can be detachably connected by screws 5 or the like. The protective cover 1 is fitted onto the motor body 8 and also onto the outer periphery of the end cover 2 to provide protection and ensure the service life of the components.

[0041] Along the air outlet direction perpendicular to the air outlet duct 6, the air inlet chamber 7 is divided into a first part 71 closer to the air outlet duct 6 and a second part 72 farther away from the air outlet duct 6. The volume of the first part 71 is smaller than that of the second part 72, so that the airflow in the air inlet chamber 7 can be pressurized before passing through the air outlet duct 6. This volume difference allows the airflow entering the air inlet chamber 7 through the air inlet 21 to be pressurized, and then flows out through the smaller first part 71 to the air outlet duct 6. This increases the airflow velocity through the air outlet duct 6, enabling faster and more effective removal of heat from the surface of the motor body 8, thus improving heat dissipation efficiency. The air outlet direction of the air outlet duct 6 is as follows: Figure 4 The middle arrow indicates the meaning.

[0042] The volume of the first part 71 and the volume of the second part 72 are different, which can be achieved by having different shapes or different sizes. The dimensions can specifically be height, width, length, diameter, etc.

[0043] The volume of the first part 71 and the volume of the second part 72 are not the same. This can also be achieved through the structure of the protective cover 1 and the end cap 2. For example, a stepped structure can be provided to create different sizes at different positions of the air inlet chamber 7.

[0044] In this embodiment, by dividing the air inlet chamber 7 into a first part 71 that is close to the air outlet channel 6 and a second part 72 that is far away from the air outlet channel 6, the volume of the first part 71 is smaller than the volume of the second part 72, which can increase the air pressure in the air inlet chamber 7, thereby increasing the airflow velocity through the air outlet channel 6 and improving the heat dissipation efficiency.

[0045] Based on the above embodiments, please refer to Figure 3 , Figure 4 The end cap 2 includes a main body portion 23 connected to the motor body 8 and a protrusion 22 extending along a first direction relative to the edge of the main body portion 23, the first direction being the direction away from the motor body 8.

[0046] By setting the protrusion 22, the distance between the protrusion 22 and the bottom of the protective cover 1 can be smaller than the distance between the main body 23 and the bottom of the protective cover 1. This allows the volume of the first part 71 of the air inlet chamber 7 to be smaller than the volume of the second part 72, thereby increasing the airflow velocity through pressurization. This allows the airflow to have a higher velocity when passing through the air outlet duct 6, thus improving the heat dissipation efficiency.

[0047] In this embodiment, the protrusions 22 may be distributed along the edge of the main body 23, such as... Figure 4 As shown; alternatively, depending on the actual situation, the protrusion 22 can be set only at the position corresponding to the part with the air outlet duct 6. The specific choice can be made flexibly according to the actual use.

[0048] Based on any of the above embodiments, the outer peripheral surfaces of the protrusion 22 and the main body 23 are both lower than or flush with the bottom surface of the air outlet duct 6.

[0049] In this embodiment, the bottom surface of the air outlet channel 6 is actually the outer peripheral surface of the motor body 8. By restricting the relationship between the outer peripheral surfaces of the protrusion 22 and the main body 23 and the bottom surface of the air outlet channel 6, the high-speed airflow that is in a positive pressure state after passing through the first part 71 can smoothly enter the air outlet channel 6, so as to ensure the efficiency and reliability of heat dissipation.

[0050] It should be noted that when the outer peripheral surfaces of the protrusion 22 and the main body 23 are both set lower than the bottom surface of the air outlet channel 6, they can be set slightly lower to avoid affecting the smoothness of the airflow of the first part 71 into the air outlet channel 6.

[0051] Based on any of the above embodiments, please refer to Figure 4 The motor body 8 has multiple heat dissipation fins 4 evenly distributed around its circumference, and an air outlet channel 6 is formed between adjacent heat dissipation fins 4. Figure 4 As shown, by setting multiple heat dissipation fins 4, positive pressure airflow can be passed through multiple air outlet channels 6 at the same time, which can improve the comprehensiveness and reliability of heat dissipation of the motor body 8 and ensure the service life of the motor.

[0052] The length of the heat dissipation fin 4 is set according to the size of the motor body 8, which can ensure reliable heat dissipation from one end connected to the end cover 2 to the other end, and ensure the service life of the motor.

[0053] Based on any of the above embodiments, please refer to Figure 4 At least one of the multiple heat dissipation fins 4 is provided with a fastening hole 41, which is used to connect the protective cover 1.

[0054] The protective cover 1 and the heat dissipation fin 4 are connected by a fastening hole 41. This fastening hole 41 can be a round hole, and the mounting hole 12 provided on the protective cover 1 is also a round hole. By passing a fastener through the corresponding round holes, the protective cover 1 can be fixed to the motor body 8.

[0055] Alternatively, the fastening hole 41 can be a slotted hole, and the mounting hole 12 on the protective cover 1 can be a round hole. By passing the fastener through the round hole and the slotted hole, the connection between the two can accommodate machining errors, which reduces the machining accuracy requirements of the parts and ensures a reliable connection between the two.

[0056] In this embodiment, the first side of the heat dissipation fin 4 is attached to the outer periphery of the motor body 8, and the second side is provided with a fastening hole 41. When the protective cover 1 is fitted onto the motor body 8, the inner wall of the protective cover 1 can contact the second side for positioning, so as to achieve reliable installation of the protective cover 1 and the motor body 8.

[0057] Based on any of the above embodiments, a plurality of spaced fastening holes 41 are provided along the length of the heat dissipation rib 4. The protective cover 1 can be connected to any of the fastening holes 41 to change the size of the air inlet chamber 7. By changing the size of the air inlet chamber 7, the pressure inside the air inlet chamber 7 can be adjusted to control the airflow rate.

[0058] In this configuration, multiple spaced fastening holes 41 can be concentrated on one or a few heat dissipation fins 4 that are easy to connect, which can improve the convenience of adjusting the size of the air inlet chamber 7.

[0059] Based on any of the above embodiments, each of the multiple heat dissipation fins 4 is provided with a fastening hole 41, and the distance between the multiple fastening holes 41 corresponding to the multiple heat dissipation fins 4 and the end cover 2 is different. For example, the multiple fastening holes 41 corresponding to the multiple heat dissipation fins 4 are arranged in a spiral on the motor body 8, that is, the distance between the multiple fastening holes 41 and the end cover 2 increases or decreases; of course, it is not limited to a spiral arrangement, and the distance between the multiple fastening holes 41 and the end cover 2 can also be varied in other forms, as long as multiple different fastening holes 41 that can adjust the size of the air inlet chamber 7 can be formed.

[0060] The protective cover 1 can be connected to the fastening hole 41 corresponding to any of the heat dissipation fins 4, so as to change the size of the air inlet chamber 7. By changing the size of the air inlet chamber 7, the pressure inside the air inlet chamber 7 can be adjusted, thereby controlling the airflow rate.

[0061] In this configuration, when it is necessary to adjust the air intake chamber for 7 hours, the position of the heat dissipation fin 4 to be connected to the protective cover 1 needs to be selected according to the situation. Then, by passing the fastener through the fastening hole 41 of the heat dissipation fin 4 and the protective cover 1, a quick and effective adjustment can be achieved.

[0062] It should be noted that adjusting the size of the air inlet chamber 7 actually changes the axial distance between the motor body 8 and the protective cover 1.

[0063] In addition, to facilitate the adjustment of the size of the air inlet chamber 7, a mark can be made on the heat dissipation fin 4. This mark can indicate the size / pressure of the air inlet chamber 7, so that the operator can make convenient and accurate adjustments.

[0064] Based on any of the above embodiments, please refer to Figure 1 , Figure 3 The length of the portion of the heat dissipation rib 4 inside the protective cover 1 is less than the length of the portion extending out of the protective cover 1, and the length direction of the heat dissipation rib 4 is parallel to the air outlet direction of the air outlet channel 6.

[0065] This configuration allows the airflow in the air outlet duct 6 to have a large contact area with the air, enabling rapid heat dissipation and cooling of the motor body 8, thereby improving the heat dissipation efficiency of the motor body 8.

[0066] Based on any of the above embodiments, a plurality of air inlets 21 of different diameters are provided along the outer periphery of the end cover 2. Any one air inlet 21 is used to introduce airflow, while the other air inlets 21 are closed.

[0067] By changing the diameter of the air inlet 21, the airflow rate can be adjusted, which can effectively reduce the motor temperature rise and improve compatibility and applicability according to the actual situation.

[0068] If the air inlet 21 with the largest diameter is used to introduce airflow, the air volume and speed can be effectively increased, ensuring reliable and effective heat dissipation for the large motor body 8.

[0069] For the air inlet 21 to be sealed, a sealing element can be installed. The sealing element needs to be able to withstand positive pressure within a certain range to ensure that the sealing element will not fall off when airflow is introduced into the air inlet chamber 7, thus ensuring the sealing effect.

[0070] Based on any of the above embodiments, please refer to Figure 1 , Figure 4 It also includes a gas pipe connector 3, which is connected to any air inlet 21 by a threaded connection. The threaded seal can ensure the sealing of the connection between the gas pipe connector 3 and the air inlet 21, reduce gas loss, and ensure the reliability of the airflow for cooling.

[0071] Based on any of the above embodiments, please refer to Figure 1 , Figure 5 The outer periphery of the protective cover 1 is provided with a positioning groove 11 for positioning the air pipe connector 3. The air pipe connector 3 passes through the positioning groove 11 and is connected to the air inlet 21.

[0072] The positioning groove 11 provides a positioning reference for the connection between the air pipe connector 3 and the air inlet 21, which facilitates the quick installation of both. It can also serve as a reference for determining the fixed direction of the protective cover 1, making assembly simple and convenient and improving the assembly efficiency of the air-cooled heat dissipation motor.

[0073] In summary, this invention can form a positive pressure chamber by creating a first part 71 and a second part 72 with different volumes within the air inlet chamber 7. This allows the airflow to be pressurized and sent to the air outlet duct 6, increasing the airflow rate, improving heat dissipation efficiency, and effectively increasing the power density of the motor. The size of the air inlet chamber 7 can be adjusted by connecting the protective cover 1 to the fastening holes 41 at different positions of the heat dissipation fins 4. The airflow volume and rate can be changed by using multiple air inlets 21 with different diameters, thus adapting to different heat dissipation needs and improving compatibility.

[0074] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0075] The present invention provides a detailed description of an air-cooled heat dissipation motor. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A wind-cooled heat dissipation motor, characterized in that, include: The motor body (8) has several air outlet channels (6) on its edge. End cap (2), connected to the motor body (8) and provided with air inlet (21); A protective cover (1) is fitted onto the motor body (8). An air inlet chamber (7) is formed between the protective cover (1) and the end cover (2). The air inlet chamber (7) is connected to the air inlet (21) and the air outlet (6). Along the air outlet direction perpendicular to the air outlet channel (6), the air inlet chamber (7) is divided into a first part (71) close to the air outlet channel (6) and a second part (72) away from the air outlet channel (6). The volume of the first part (71) is smaller than that of the second part (72) so that the airflow can be pressurized through the air inlet chamber (7) and then pass through the air outlet channel (6).

2. The air-cooled heat dissipation motor according to claim 1, characterized in that, The end cap (2) includes a main body (23) connected to the motor body (8) and a protrusion (22) extending along a first direction relative to the edge of the main body (23), the first direction being the direction away from the motor body (8).

3. The air-cooled heat dissipation motor according to claim 2, characterized in that, The outer periphery of the protrusion (22) and the main body (23) are both lower than or flush with the bottom surface of the air outlet channel (6).

4. The air-cooled heat dissipation motor according to claim 3, characterized in that, The motor body (8) is provided with a plurality of heat dissipation fins (4) evenly distributed around its circumference, and the air outlet channel (6) is formed between two adjacent heat dissipation fins (4).

5. The air-cooled heat dissipation motor according to claim 4, characterized in that, At least one of the plurality of heat dissipation fins (4) is provided with a fastening hole (41) for connecting the protective cover (1).

6. The air-cooled heat dissipation motor according to claim 5, characterized in that, Multiple fastening holes (41) are provided at intervals along the length of the heat dissipation fins (4). The protective cover (1) can be connected to any of the fastening holes (41) to change the size of the air inlet chamber (7). Alternatively, each of the multiple heat dissipation fins (4) is provided with a fastening hole (41), and the distance between the multiple fastening holes (41) corresponding to the multiple heat dissipation fins (4) and the end cap (2) is different. The protective cover (1) can be connected to the fastening hole (41) corresponding to any of the heat dissipation fins (4) so ​​as to change the size of the air inlet chamber (7).

7. The air-cooled heat dissipation motor according to claim 6, characterized in that, The length of the portion of the heat dissipation rib (4) inside the protective cover (1) is less than the length of the portion extending out of the protective cover (1), and the length direction of the heat dissipation rib (4) is parallel to the air outlet direction of the air outlet channel (6).

8. The air-cooled heat dissipation motor according to any one of claims 1 to 7, characterized in that, Multiple air inlets (21) of different diameters are provided along the outer periphery of the end cap (2). Any one of the air inlets (21) is used to allow airflow, while the other air inlets (21) are closed.

9. The air-cooled heat dissipation motor according to claim 8, characterized in that, It also includes an air pipe connector (3), which is connected to any of the air inlets (21) by a threaded connection.

10. The air-cooled heat dissipation motor according to claim 9, characterized in that, The outer periphery of the protective cover (1) is provided with a positioning groove (11) for positioning the air pipe connector (3), and the air pipe connector (3) passes through the positioning groove (11) and is connected to the air inlet (21).

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