Turning-free thin-wall shell

Abstract

The utility model belongs to the technical field of new energy automobile parts, and particularly relates to a turning-free thin-wall shell which comprises a barrel, a first end cover and a second end cover, the barrel comprises an outer barrel and an inner barrel, a cavity between the outer barrel and the inner barrel is divided by a spiral partition plate to form an airflow channel, and an air inlet and an air outlet are formed in the two ends of the airflow channel respectively. The two ends of the spiral partition plate are fixedly connected to the end plates, a first end cover and a second end cover are installed at the two ends of the barrel respectively, and fan blades are arranged between a base of the first end cover and the filter casing. According to the utility model, the motor shell is composed of the inner and outer layers of cylinders which are sleeved with each other, the airflow channel is formed between the two cylinders and is matched with the fan blade arranged at one end of the airflow channel for use, in the operation process of the motor, the fan blade conveys external air into the airflow channel, and heat generated by the operation of the motor is taken away by rapidly flowing airflow; and the whole shell is simple in structure, good in heat dissipation performance and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy automobile parts, in particular to a turning-free thin-wall shell. Background Art

[0002] With the development of new energy vehicles, the motors of electric vehicles have been given a new mission, that is, to directly drive the vehicle. According to the use conditions of the motor in the vehicle, the casing is an indispensable part of the motor. The casing mainly protects the internal structure of the motor and plays a cooling role.

[0003] Various motor housings commonly seen on the market are usually made by casting technology (cast iron or cast aluminum) combined with mechanical processing. However, casting technology produces a large amount of solid waste, which seriously harms the environment. Therefore, turning-free thin-walled motor housings are becoming more and more popular. Existing turning-free thin-walled motor housings are usually integrated, so the heat dissipation of turning-free thin-walled motor housings is poor, resulting in excessive temperature inside the turning-free thin-walled motor housing, which can easily affect the use of the motor. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a turning-free thin-wall housing, which solves the problem of poor heat dissipation performance of the prior turning-free thin-wall motor housing.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A turning-free thin-wall shell comprises a cylinder, a first end cover and a second end cover, wherein the cylinder comprises an outer cylinder and an inner cylinder, a cavity between the outer cylinder and the inner cylinder is divided by a spiral partition to form an air flow channel, an air inlet and an air outlet are respectively formed at both ends of the air flow channel, and both ends of the spiral partition are fixedly connected to the end plate, and the first end cover and the second end cover are respectively installed at both ends of the cylinder, a fan blade is arranged between the base of the first end cover and the filter cover, and the air vent arranged on the base is connected to the air inlet.

[0009] Furthermore, the spiral baffles are distributed in an annular array between the outer tube and the inner tube, and form a spiral air flow channel evenly distributed in the cavity, and the air inlet at one end of the air flow channel is opened on the side wall of the inner tube, and the air outlet at the other end is opened on the side wall of the outer tube;

[0010] The end plates are fixedly connected to both ends of the outer tube and the inner tube, and the end plates are provided with evenly distributed threaded holes.

[0011] Furthermore, the flange plate arranged on the base is overlapped on the end plate at one end of the cylinder air inlet and fixedly connected to the end plate by screws, and a plugging plate integrally arranged on one side of the flange plate is inserted into the cylinder, a ring sleeve is fixedly connected between the plugging plate and the flange plate, and the vent is opened at a position on the ring sleeve corresponding to the air inlet;

[0012] The other side of the flange plate is fixedly connected with a plug-in ring plate, the filter cover is fixedly sleeved on the plug-in ring plate, and the air intake area arranged on the filter cover is provided with evenly distributed air intake holes.

[0013] Furthermore, the second end cover is fixedly connected to the end plate at the end of the cylinder by screws, and the edge of the second end cover is bent toward one side of the cylinder to form a guide ring sleeve, and an exhaust cavity is formed between the guide ring sleeve and the outer cylinder and is connected to the air outlet.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a thin-walled shell without turning, which has the following beneficial effects:

[0016] The utility model adopts an inner and outer shell composed of two mutually nested cylinders, and an air flow channel is formed between the two cylinders. The motor housing is used together with a fan blade arranged at one end of the air flow channel. During the operation of the motor, the fan blade transports the outside air into the air flow channel, and the heat generated by the operation of the motor is taken away by the fast-flowing air flow, so that the motor can quickly dissipate the heat, thereby dissipating the heat. The whole housing has a simple structure, good heat dissipation performance, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is an exploded view of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the cylinder in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the base in the utility model.

[0021] In the figure: 1. cylinder; 101. outer cylinder; 102. inner cylinder; 103. spiral partition; 104. end plate; 105. air inlet; 106. air outlet; 2. first end cover; 201. base; 2011. flange plate; 2012. sealing plate; 2013. plugging ring plate; 2014. vent; 202. fan blades; 203. filter cover; 3. second end cover. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an embodiment of the utility model proposes: a turning-free thin-walled shell, including a cylinder 1, a first end cover 2 and a second end cover 3, the cylinder 1 includes an outer cylinder 101 and an inner cylinder 102, the cavity between the outer cylinder 101 and the inner cylinder 102 is divided by a spiral partition 103 to form an air flow channel, and an air inlet 105 and an air outlet 106 are formed at both ends of the air flow channel, which is convenient for smoothly inputting external air into the air flow channel during the operation of the motor, and using the fast-flowing air to take away the heat generated by the operation of the motor, so as to achieve rapid heat dissipation of the motor, and both ends of the spiral partition 103 are fixedly connected to the end plate 104, ensuring that a uniformly distributed spiral air flow channel is formed on the cylinder 1, The heat dissipation performance of the shell is improved, and the first end cover 2 and the second end cover 3 are respectively installed at both ends of the cylinder 1 to ensure that the three are stably matched together to form a complete motor housing to ensure stable use. The fan blade 202 is arranged between the base 201 of the first end cover 2 and the filter cover 203, which is convenient for installation at the end of the rotor shaft. During the operation of the motor, it rotates together, thereby drawing the outside air into the air flow channel formed on the cylinder 1, quickly taking away the heat, and improving the heat dissipation efficiency of the motor. The vent 2014 arranged on the base 201 is connected to the air inlet 105 to ensure that the air drawn by the fan blade 202 can smoothly enter the air flow channel to dissipate heat.

[0025] like Figure 2 and Figure 3 As shown, in some embodiments, the spiral baffles 103 are distributed in an annular array between the outer cylinder 101 and the inner cylinder 102, and the spiral air flow channel is evenly distributed in the cavity, and the air inlet 105 at one end of the air flow channel is opened on the side wall of the inner cylinder 102, and the air outlet 106 at the other end is opened on the side wall of the outer cylinder 101, ensuring that the air transported by the fan blades 202 can flow smoothly between the outer cylinder 101 and the inner cylinder 102, thereby taking away the heat dissipated to the shell during the operation of the motor, ensuring the stable and smooth operation of the motor;

[0026] The end plate 104 is fixedly connected to both ends of the outer cylinder 101 and the inner cylinder 102. The end plate 104 is provided with evenly distributed threaded holes for easy use with screws, so that the first end cover 2 and the second end cover 3 can be stably installed on the cylinder body 1, so that the three are stably combined together to form a stable motor housing to ensure stable use.

[0027] like Figure 1 , Figure 2 and Figure 4 As shown, in some embodiments, the flange plate 2011 provided on the base 201 is overlapped on the end plate 104 at one end of the air inlet 105 of the cylinder 1, and is fixedly connected to the end plate 104 by screws, so as to facilitate the stable installation of the base 201 at one end of the cylinder 1, so that it can be used as a carrier for installation, and ensure that the entire first end cover 2 is stably installed on the cylinder 1, and the end is blocked, and used together with the cylinder 1 and the second end cover 3 to form a stable motor housing, ensuring stable use, and the sealing plate 2012 integrally provided on one side of the flange plate 2011 is inserted into the cylinder 1, and a sealing plate 2012 is provided on the sealing plate 2012. The perforations of the rotor shaft body are inserted so that the shaft body can smoothly extend into the cavity between the filter cover 203 and the base 201 and be stably connected with the fan blade 202. A ring sleeve is fixedly connected between the sealing plate 2012 and the flange plate 2011. The vent 2014 is provided at a position on the ring sleeve corresponding to the air inlet 105, so that the fan blade 202 can be driven to rotate smoothly when the motor is running, and the outside air can be drawn into the cavity where the fan blade 202 is located, and then enter the air flow channel on the cylinder 1 from the vent 2014, and the heat generated during the operation of the motor can be quickly dissipated during the air flow, so as to achieve rapid heat dissipation;

[0028] The other side of the flange plate 2011 is fixedly connected to the plug-in ring plate 2013, the filter cover 203 is fixedly mounted on the plug-in ring plate 2013, and the air intake area set on the filter cover 203 is provided with evenly distributed air intake holes, and an air intake filter is placed at the air intake hole position of the filter cover 203 to filter the air entering the filter cover 203 to prevent dust and other debris from entering, thereby ensuring long-term and stable use.

[0029] like Figure 1 and Figure 2As shown, in some embodiments, the second end cover 3 is fixedly connected to the end plate 104 at the end of the cylinder 1 by screws, so that the second end cover 3 can be stably installed at one end of the cylinder 1 to seal the port of the cylinder 1. At the same time, a through hole for inserting the motor rotor output shaft is opened on the second end cover 3, so as to facilitate the smooth installation of the motor rotor in the shell for stable use. The edge of the second end cover 3 is bent toward one side of the cylinder 1 to form a guide ring sleeve, and an exhaust cavity is formed between the guide ring sleeve and the outer cylinder 101 and is connected to the air outlet 106, so that the air flowing in the cavity between the outer cylinder 101 and the inner cylinder 102 can smoothly enter the exhaust cavity formed from the air outlet 106, and change the flow direction after passing through the guide ring sleeve, and blow it to the outer wall of the cylinder 1, thereby accelerating the air flow and improving the heat dissipation performance.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A turning-free thin-walled housing, comprising a cylinder (1), a first end cover (2) and a second end cover (3), characterized in that: The cylinder (1) comprises an outer cylinder (101) and an inner cylinder (102); a cavity between the outer cylinder (101) and the inner cylinder (102) is divided by a spiral partition (103) to form an air flow channel; an air inlet (105) and an air outlet (106) are respectively formed at two ends of the air flow channel; both ends of the spiral partition (103) are fixedly connected to the end plate (104); and a first end cover (2) and a second end cover (3) are respectively installed at two ends of the cylinder (1); a fan blade (202) is arranged between a base (201) of the first end cover (2) and a filter cover (203); and an air vent (2014) arranged on the base (201) is connected to the air inlet (105).

2. The turning-free thin-walled housing according to claim 1, characterized in that: The spiral baffles (103) are distributed in a circular array between the outer tube (101) and the inner tube (102) and form a spiral air flow channel evenly distributed in the cavity, and the air inlet (105) at one end of the air flow channel is opened on the side wall of the inner tube (102), and the air outlet (106) at the other end is opened on the side wall of the outer tube (101).

3. The turning-free thin-walled housing according to claim 2, characterized in that: The end plate (104) is fixedly connected to both ends of the outer cylinder (101) and the inner cylinder (102), and the end plate (104) is provided with evenly distributed threaded holes.

4. The turning-free thin-walled housing according to claim 1, characterized in that: The flange plate (2011) arranged on the base (201) is overlapped on the end plate (104) at one end of the air inlet (105) of the cylinder (1) and is fixedly connected to the end plate (104) by means of screws, and a sealing plate (2012) integrally arranged on one side of the flange plate (2011) is inserted into the cylinder (1), a ring sleeve is fixedly connected between the sealing plate (2012) and the flange plate (2011), and the air vent (2014) is provided at a position on the ring sleeve corresponding to the air inlet (105).

5. The turning-free thin-walled housing according to claim 4, characterized in that: The other side of the flange plate (2011) is fixedly connected to a plug-in ring plate (2013), the filter cover (203) is fixedly sleeved on the plug-in ring plate (2013), and an air intake area arranged on the filter cover (203) is provided with evenly distributed air intake holes.

6. The turning-free thin-walled housing according to claim 1, characterized in that: The second end cover (3) is fixedly connected to the end plate (104) at the end of the cylinder (1) by means of screws; the edge of the second end cover (3) is bent toward one side of the cylinder (1) to form a guide ring; an exhaust cavity is formed between the guide ring and the outer cylinder (101) and is connected to the air outlet (106).

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