Motor shell compatible with double cooling and driving motor

Abstract

The utility model discloses a motor housing compatible with double cooling, the motor housing is hollow and integrally cylindrical, a circle of water cooling channels are arranged in the motor housing along the circumferential direction, two ends of the motor housing are detachably provided with a plurality of transition joints, and each transition joint is connected with openings of two adjacent water cooling channels at the same end. The transition connectors at the two ends of the motor shell are arranged in a staggered mode, a water inlet connector and a water outlet connector are connected to openings in one ends of the two water cooling channels, heat dissipation fins are further arranged on the peripheral face of the motor shell at equal angles, and the heat dissipation fins extend in the radial direction of the motor shell from the peripheral face of the motor shell. A first air cooling channel extending in the axial direction of the motor shell is formed in the position, on the outer surface of the motor shell, between every two adjacent cooling fins, and the water cooling channels and the first air cooling channels are correspondingly arranged inside and outside. According to the scheme, the tubular through hole selectively has an air cooling function and a water cooling function, and is flexible to use, small in size, convenient to disassemble and maintain and good in cooling effect.

Description

Technical Field

[0001] The utility model relates to the field of drive motors, and in particular to a motor housing and a drive motor compatible with double cooling. Background Art

[0002] Most small vehicles on the market use air-cooled motors. The motor housing of this type of motor can be directly stretched using a die, which has the lowest cost. The motor housings of existing air-cooled motors, such as the utility model patent with authorization announcement number CN211183639U, all achieve heat dissipation by arranging heat dissipation fins on the outer periphery of the motor housing to increase the heat dissipation area. The production cost of such motor housings is relatively low. As the output density requirements of drive motors become higher and higher, the requirements for motor heat dissipation performance are also increasing. In particular, some small logistics vehicles have increased requirements for continuous power and peak torque of drive motors. Existing solutions, such as the utility model patent with authorization announcement number CN218920123U, improve heat dissipation effects by adjusting the size and arrangement of heat dissipation fins. However, the production cost of such motor housings is relatively high, and the heat dissipation performance is still limited. Some motor housings are equipped with water cooling systems, such as the utility model patent with authorization announcement number CN216672758U, which has a number of interconnected water cooling holes in the motor housing, and cooling is achieved by circulating input and output of condensed water. There are also some motor housings with both air cooling and water cooling functions, but when the air cooling and water cooling devices are arranged unevenly, it is easy to cause poor local heat dissipation of the motor. At the same time, in the prior art, the motor housing with both air cooling and water cooling devices is large in size and complex in structure, and is not suitable for small and lightweight motors. Utility Model Content

[0003] Therefore, in order to solve the above problems, the utility model provides a motor housing and a drive motor compatible with dual cooling.

[0004] The utility model is realized by the following technical solutions:

[0005] A motor housing compatible with dual cooling, the motor housing is hollow and cylindrical as a whole, a circle of tubular through holes extending along the axial direction of the motor housing and open at both ends are arranged in the motor housing along its circumferential direction, and heat dissipation fins are also arranged at equal angles on the outer circumferential surface of the motor housing, the heat dissipation fins are integrally arranged with the motor housing, the heat dissipation fins extend radially from the outer circumferential surface of the motor housing, a first air-cooling channel extending axially along the motor housing is formed on the outer surface of the motor housing between two adjacent heat dissipation fins, the tubular through hole is arranged between two adjacent heat dissipation fins, and the aperture of the tubular through hole is smaller than the spacing between two adjacent heat dissipation fins, and the tubular through hole and the first air-cooling channel are arranged correspondingly inside and outside the radial direction of the motor housing.

[0006] Preferably, the tubular through hole in the motor housing is a water cooling channel, and a plurality of transition joints are detachably provided at both ends of the motor housing, each transition joint connects the openings of two adjacent water cooling channels at the same end, and the transition joints at both ends of the motor housing are staggered so that all water cooling channels on the motor housing are interconnected, wherein a water inlet joint and a water outlet joint are connected to the openings at one end of two water cooling channels.

[0007] Preferably, a second air cooling channel is formed between two adjacent water cooling channels in the motor housing, and the second air cooling channel is located at the bottom of the heat dissipation fins.

[0008] Preferably, the axial lengths of the heat dissipating fins, the first air-cooling channel, the second air-cooling channel and the water-cooling channel are all the same as the axial length of the motor housing.

[0009] Preferably, the transition joint is a semicircular tube body including two interfaces, and the two interfaces of the transition joint are respectively connected to an opening of a water cooling channel by interference fit.

[0010] Preferably, first clamping rings are provided on the outer peripheries of the two interfaces of the transition joint, and the first clamping rings abut against the outer portion of the opening at the end of the water-cooling channel.

[0011] Preferably, a sealant layer is provided between the interface of the transition joint and the inner wall of the water cooling channel.

[0012] Preferably, the water inlet joint and the water outlet joint are L-shaped pipe bodies, including two interfaces, one of which is connected to the water cooling channel, and the other is connected to the water inlet pipe or the water outlet pipe.

[0013] Preferably, a second clamping ring is provided at the periphery of the interface where the water inlet joint and the water outlet joint are connected to the water cooling channel, and a thread is provided at the periphery of the interface where the water inlet joint and the water outlet joint are away from the water cooling channel.

[0014] A drive motor comprises a motor housing compatible with dual cooling as described above.

[0015] The beneficial effects of the technical solution of the utility model are mainly reflected in:

[0016] 1. The motor housing has transition joints, water inlet joints and water outlet joints detachably arranged at both ends of the tubular through hole, so that the tubular through hole can selectively have both air cooling and water cooling functions, which is convenient for flexible use of the motor housing. When the joints are removed, the tubular through hole can be used as an air cooling through hole. At this time, the motor housing only has an air cooling function and a simple structure. When the joints are installed, the tubular through hole can be used as a water cooling channel, and condensed water is connected through the water inlet joint and the water outlet joint, so that the motor housing has both air cooling and water cooling functions, further improving the cooling effect.

[0017] 2. Water cooling channels and heat dissipation fins are respectively provided on the motor housing. On the one hand, the heat dissipation fins can increase the surface area of ​​the motor housing, thereby increasing the heat dissipation area. On the other hand, multiple first air cooling channels can be formed on the surface of the motor housing to facilitate air cooling. The second air cooling channel and water cooling channel in the motor housing can further perform air cooling and water cooling on the drive motor, thereby improving the heat dissipation effect of the drive motor.

[0018] 3. The water cooling channel realizes the transportation, input and output of condensed water in the water cooling channel through a detachable transition joint, water inlet joint and water outlet joint. It is easy to assemble and can be replaced in time when any component is damaged, thereby increasing the service life of the motor housing.

[0019] 4. The heat dissipation structures on the motor housing are arranged at equal angles along its circumference, including heat dissipation fins arranged at equal angles on the outer circumference of the motor housing, and water cooling channels and air cooling channels arranged at equal angles in the motor housing. The heat dissipation structures in various parts of the motor housing are consistent in shape and arrangement. The various structures on the motor housing are integrated. The water cooling channel only needs to be provided with tubular through holes, and the condensate can be circulated in the water cooling channel in combination with the joint accessories. On the one hand, the structure of the motor housing is simplified, and the size of the motor can be changed by only adjusting the length of the drawing die, which can be suitable for lightweight and small-volume motors. On the other hand, it can also ensure the uniformity of the heat dissipation effect in various parts of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded schematic diagram of a transition joint, a water inlet joint, a water outlet joint and a motor housing in a drive motor having a motor housing compatible with dual cooling;

[0021] Figure 2 is a bottom view of a drive motor having a motor housing compatible with dual cooling;

[0022] Figure 3 is a top view of a drive motor having a motor housing compatible with dual cooling;

[0023] Figure 4 is a cross-sectional view of a drive motor having a motor housing compatible with dual cooling (the arrows in the figure represent the direction of condensed water flow);

[0024] Figure 5 is a perspective view of a drive motor having a motor housing compatible with dual cooling;

[0025] Figure 6 This is a top view of a motor housing compatible with dual cooling (without the connectors installed at this time);

[0026] Figure 7 It is a stereoscopic diagram of the drive motor having only air cooling function in the utility model at a first viewing angle;

[0027] Figure 8 It is a stereoscopic diagram of the drive motor having only air cooling function in the utility model at a second viewing angle. DETAILED DESCRIPTION

[0028] In order to make the purpose, advantages and features of the utility model more clearly and in detail, the following preferred embodiments are illustrated and explained through non-limiting descriptions. This embodiment is only a typical example of the application of the technical solution of the utility model. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the utility model.

[0029] At the same time, it is stated that in the description of the scheme, it should be noted that the directions or positional relationships indicated by the terms "center", "up", "down", "left", "right", "front", "back", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0030] In addition, the terms "first" and "second" in this solution are only used for descriptive purposes and cannot be understood as indicating or implying the order of importance, or implicitly indicating the number of technical features shown. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In this utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] The outer peripheral surface of the motor housing is also provided with heat dissipation fins at equal angles, and the heat dissipation fins are integrally arranged with the motor housing. The heat dissipation fins extend radially from the outer peripheral surface of the motor housing, and a first air cooling channel extending axially along the motor housing is formed on the outer surface of the motor housing between two adjacent heat dissipation fins. The tubular through hole 1 is arranged between two adjacent heat dissipation fins, and the aperture of the tubular through hole 1 is smaller than the spacing between two adjacent heat dissipation fins. The tubular through hole 1 and the first air cooling channel are arranged correspondingly inside and outside the radial direction of the motor housing.

[0032] The utility model discloses a motor housing compatible with dual cooling, such as Figure 1 , Figure 6 As shown, the motor housing is hollow and cylindrical in shape as a whole, and a tubular through hole 1 extending along the axial direction of the motor housing and opened at both ends is provided in the motor housing. Figure 2 , Figure 3 , Figure 6As shown, heat dissipation fins 3 are also arranged at equal angles on the outer circumferential surface of the motor housing, and the heat dissipation fins 3 extend radially from the outer circumferential surface of the motor housing. On the one hand, the heat dissipation area of ​​the motor housing can be increased; on the other hand, a first air cooling channel 2 extending axially along the motor housing is formed on the outer surface of the motor housing between two adjacent heat dissipation fins 3, and air enters axially in the first air cooling channel 2 to achieve accelerated cooling in the first air cooling channel 2, and the tubular through hole 1 is arranged between two adjacent heat dissipation fins 3, and the aperture of the tubular through hole 1 is smaller than the spacing between two adjacent heat dissipation fins, and the tubular through hole 1 and the first air cooling channel 2 are arranged correspondingly inwardly and outwardly along the radial direction of the motor housing to further improve the cooling effect.

[0033] The tubular through hole 1 can selectively have two functions: air cooling and water cooling.

[0034] like Figure 6-Figure 8 As shown, in some embodiments, the tubular through hole 1 is used as an air cooling through hole. During the process of driving the motor to rotate, the air cooling through hole is combined with the first air cooling channel 2 to take in air axially. The air flows along the air cooling through hole and the first air cooling channel 2 in the motor housing along its axial direction, thereby realizing the air cooling function. In this embodiment, the motor housing is a motor housing that only has an air cooling function, and the overall structure is simple.

[0035] In other embodiments, the tubular through hole 1 in the motor housing is a water cooling channel, and the condensed water in the tubular through hole 1 can flow along the axial direction of the motor housing through the water cooling channel in the motor housing. A plurality of transition joints 4 are detachably provided at both ends of the motor housing, and each transition joint 4 connects the openings of two adjacent water cooling channels at the same end. The transition joints 4 at both ends of the motor housing are staggered so that all water cooling channels on the motor housing are interconnected, wherein one end opening of the two water cooling channels is connected with a water inlet joint and a water outlet joint. In this embodiment, the motor housing is a motor housing with both air cooling and water cooling functions, which can further improve the cooling effect of the motor housing. In a preferred embodiment, the water inlet joint and the water outlet joint are installed at the same end of two adjacent water cooling channels, and the condensed water is first transported from the water cooling channel where the water inlet interface 5 is installed to the side away from the water outlet joint through the transition joint 4, and then flows into each water cooling channel in turn through the transition joints 4 staggered at both ends of the motor housing until the condensed water flows into the water cooling channel where the water outlet interface 6 is installed and then flows out from the water outlet interface 6, and the water cooling cycle of the drive motor is realized by circulating the condensed water.

[0036] like Figure 3 , Figure 6As shown, in some embodiments, a second air-cooling channel 7 is further formed between two adjacent water-cooling channels in the motor housing, and the second air-cooling channel 7 is located at the bottom of the heat dissipation fin 3. In a preferred embodiment, the heat dissipation fin 3 is integrally arranged with the motor housing, and the water-cooling channel and the second air-cooling channel 7 are integrally formed with the motor housing. The axial lengths of the heat dissipation fin 3, the first air-cooling channel 2, the second air-cooling channel 7 and the water-cooling channel are the same as the axial length of the motor housing, and the various structures on the motor housing are symmetrically arranged with the axis of the motor housing as the axis. Therefore, it is convenient to draw the motor housing when making the die, and when the size of the motor housing needs to be changed, it is only necessary to adjust the length of the drawing by the die, which greatly reduces the preparation cost of the motor housing and can ensure the balance of the cooling effect of each part of the motor housing.

[0037] like Figure 1 , Figure 5 As shown, in some embodiments, the transition joint 4 is a semicircular tube body, including two interfaces, and the two interfaces of the transition joint 4 are respectively connected with the opening of a water-cooling channel by interference fit. In a preferred embodiment, a sealant layer is also provided between the interface of the transition joint 4 and the inner wall of the water-cooling channel, which can improve the sealing of the connection between the transition joint 4 and the water-cooling channel. A first clamping ring is also provided on the outer periphery of the two interfaces of the transition joint 4, and the first clamping ring abuts against the outside of the opening at the end of the water-cooling channel, thereby further improving the tightness of the connection between the transition joint 4 and the water-cooling channel.

[0038] like Figure 1 As shown, in some embodiments, the water inlet joint and the water outlet joint are L-shaped pipe bodies, which are convenient for connecting external pipes. The water inlet joint and the water outlet joint each include two interfaces, one of which is connected to the water cooling channel, and the other is connected to the water inlet pipe or the water outlet pipe. In a preferred embodiment, a second clamping ring is provided on the outer periphery of the interface where the water inlet joint and the water outlet joint are connected to the water cooling channel, and a thread is provided on the outer periphery of the interface of the water inlet joint and the water outlet joint away from the water cooling channel.

[0039] like Figure 1-Figure 5 As shown, the utility model also discloses a driving motor, including the motor housing compatible with dual cooling as described above.

[0040] There are many implementation methods of the utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A motor housing compatible with dual cooling, the motor housing being hollow and cylindrical in shape as a whole, characterized in that: A circle of tubular through holes extending along the axial direction of the motor housing and open at both ends are arranged in the motor housing along its circumferential direction. Heat dissipation fins are also arranged at equal angles on the outer circumferential surface of the motor housing. The heat dissipation fins are integrally arranged with the motor housing. The heat dissipation fins extend radially from the outer circumferential surface of the motor housing. A first air cooling channel extending axially of the motor housing is formed on the outer surface of the motor housing between two adjacent heat dissipation fins. The tubular through hole is arranged between two adjacent heat dissipation fins, and the aperture of the tubular through hole is smaller than the spacing between two adjacent heat dissipation fins. The tubular through hole and the first air cooling channel are arranged correspondingly inside and outside the radial direction of the motor housing.

2. The motor housing compatible with dual cooling according to claim 1, characterized in that: The tubular through hole in the motor housing is a water cooling channel. A plurality of transition joints are detachably provided at both ends of the motor housing. Each transition joint connects the openings of two adjacent water cooling channels at the same end. The transition joints at both ends of the motor housing are staggered so that all water cooling channels on the motor housing are interconnected, wherein a water inlet joint and a water outlet joint are connected to the openings at one end of the two water cooling channels.

3. The motor housing compatible with dual cooling according to claim 1, characterized in that: A second air cooling channel is formed between two adjacent water cooling channels in the motor housing, and the second air cooling channel is located at the bottom of the heat dissipation fins.

4. The motor housing compatible with dual cooling according to claim 3, characterized in that: The axial lengths of the heat dissipation fins, the first air cooling channel, the second air cooling channel and the water cooling channel are all the same as the axial length of the motor housing.

5. The motor housing compatible with dual cooling according to claim 2, characterized in that: The transition joint is a semicircular tube body including two interfaces. The two interfaces of the transition joint are respectively connected with the opening of a water cooling channel by interference fit.

6. The motor housing compatible with dual cooling according to claim 5, characterized in that: The outer peripheries of the two interfaces of the transition joint are provided with first clamping rings, and the first clamping rings abut against the outer opening of the end of the water-cooling channel.

7. The motor housing compatible with dual cooling according to claim 5, characterized in that: A sealing rubber layer is also provided between the interface of the transition joint and the inner wall of the water cooling channel.

8. The motor housing compatible with dual cooling according to claim 2, characterized in that: The water inlet joint and the water outlet joint are L-shaped pipe bodies, including two interfaces, one of which is connected to the water cooling channel, and the other is connected to the water inlet pipe or the water outlet pipe.

9. The motor housing compatible with dual cooling according to claim 8, characterized in that: A second clamping ring is provided at the periphery of the interface where the water inlet joint and the water outlet joint are connected to the water cooling channel, and a thread is provided at the periphery of the interface where the water inlet joint and the water outlet joint are away from the water cooling channel.

10. A driving motor, characterized in that: It comprises a motor housing compatible with dual cooling as described in any one of claims 1-9.

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