Motor convenient for heat dissipation

Abstract

The utility model discloses a motor convenient for heat dissipation, which comprises a casing, a stator and a rotor are arranged in the casing, the rotor is located in the stator, the interior of the rotor is fixedly connected with a rotating shaft, one end of the rotating shaft penetrates through the casing, a first fan blade and a second fan blade, and the first fan blade and the second fan blade are arranged on the outer wall of the rotating shaft and are located on the two sides of the rotor respectively. The partition plate is used for rotating along with the rotating shaft to dissipate heat, the partition plate is fixedly arranged on the inner wall of the machine shell and located above the stator, and an exhaust cavity is formed between the upper surface of the partition plate and the inner wall of the machine shell; according to the scheme, the first fan blades and the second fan blades can be synchronously driven to rotate through the rotating shaft, air is sucked in from the tail of the machine shell through rotation of the first fan blades, air is exhausted outwards from the air exhaust cavity separated by the partition plate through rotation of the second fan blades, and therefore the air circulation speed in the machine shell can be effectively increased; therefore, the air can be quickly replaced in the casing, and the heat dissipation effect of the motor can be enhanced.

Description

Technical Field

[0001] This application relates to the technical field of motor heat dissipation, and particularly to a motor facilitating heat dissipation. Background Art

[0002] In industries such as industry, transportation, and household appliances, motors, as devices that convert electrical energy into mechanical energy, are widely used. With the continuous development of modern motors in terms of high efficiency and low energy consumption, their promoting effect on automation and intelligent technologies is becoming increasingly significant. However, motors generate a large amount of heat during operation. To ensure the stability of the motor during operation, it is necessary to endow it with good heat dissipation performance.

[0003] In related technologies, during the use of motors, heat dissipation is mainly carried out through the fan blades installed at the tail of the motor. The provided fan blades are usually installed on the rotating shaft of the motor and can be synchronously controlled to rotate when the motor starts. The rotation of the fan blades can drive the air inside the motor to flow, thereby achieving heat dissipation of the motor. However, the heat dissipation method only through the fan blades at the tail of the motor may affect the heat dissipation effect due to the limited air flow speed, which is not conducive to actual use. Therefore, those skilled in the art have provided a motor facilitating heat dissipation to solve the problems raised in the above background art. Utility Model Content

[0004] To solve the problem that the heat dissipation method only through the fan blades at the tail of the motor in the above background art may affect the heat dissipation effect due to the limited air flow speed, this application provides a motor facilitating heat dissipation.

[0005] The motor facilitating heat dissipation provided by this application adopts the following technical solution:

[0006] A motor facilitating heat dissipation includes a housing. A stator and a rotor are arranged inside the housing. The rotor is located inside the stator. A rotating shaft is fixedly connected inside the rotor. One end of the rotating shaft penetrates the housing. A first fan blade and a second fan blade are both arranged on the outer wall of the rotating shaft and are respectively located on both sides of the rotor for heat dissipation by following the rotation of the rotating shaft. A partition plate is fixedly arranged on the inner wall of the housing and is located above the stator. An exhaust air cavity is formed between the upper surface of the partition plate and the inner wall of the housing.

[0007] By adopting the above technical solution, the casing can limit the installation positions of the stator, rotor and rotating shaft. When the rotating shaft rotates, it can drive the first fan blade and the second fan blade to rotate synchronously. When the first fan blade rotates, air can be inhaled from the tail of the casing, and when the second fan blade rotates, the air can be discharged outward from the exhaust air cavity separated by the partition plate, so as to effectively increase the air circulation speed inside the casing, enable the air to be replaced faster inside the casing, and enhance the heat dissipation effect of the motor.

[0008] Preferably, the casing includes a housing, and the stator, the rotor, the first fan blade and the second fan blade are all located inside the housing. A protective cover is hinged to the top of one side of the housing, and a butterfly bolt is threadedly connected between the side of the protective cover away from the hinged part with the housing and the housing.

[0009] By adopting the above technical solution, when the protective cover is closed, the position between it and the housing can be limited by the butterfly bolt, and at the same time, the stator, rotor, first fan blade and second fan blade installed inside the housing can be protected.

[0010] Preferably, the protective cover includes a circular plate hinged to one side of the housing. A plurality of heat dissipation air inlet holes penetrating the circular plate are evenly opened on the circular plate. A heat dissipation air outlet connected to the exhaust air cavity is opened on the circular plate. An installation hole is opened on the circular plate, and the butterfly bolt passes through the inside of the installation hole, and the two are rotatably connected.

[0011] By adopting the above technical solution, when the fan blade rotates, external air can enter the inside of the housing through the heat dissipation air inlet holes. The redundant air inside the housing can be discharged outward through the cooperation of the exhaust air cavity and the heat dissipation air outlet, and the installation hole facilitates the installation and use of the butterfly bolt.

[0012] Preferably, a mounting plate is fixedly connected to the lower surface of the housing, and reinforcing strips are fixedly connected between the outer walls on both sides of the housing and the upper surface of the mounting plate.

[0013] By adopting the above technical solution, the mounting plate and the bolt can cooperate to fix the housing on the mounting surface, and the reinforcing strip can reinforce the connection between the mounting plate and the housing.

[0014] Preferably, a second air guide plate is fixedly connected to the inner wall of the housing on the side away from the protective cover, and the rotating shaft penetrates through the second air guide plate.

[0015] By adopting the above technical solution, when the air inside the housing circulates, the inclined second air guide plate can guide the air to be discharged to the exhaust air cavity part.

[0016] Preferably, a first air guide plate is fixedly connected to a side of the circular plate away from the shell, and the first air guide plate is located between the heat dissipation air inlet hole and the heat dissipation air outlet and is arranged at an angle.

[0017] By adopting the above technical solution, the first air guide plate can guide the air discharged from the heat dissipation outlet obliquely upward, thereby minimizing the discharged hot air from entering the housing through the heat dissipation air inlet hole.

[0018] Preferably, a filter screen is connected to the inner wall of the circular plate via bolts, and the filter screen is located on one side of the plurality of heat dissipation air inlet holes.

[0019] By adopting the above technical solution, the filter can filter out some foreign matter such as lint in the air circulating inside the heat dissipation air inlet hole.

[0020] In summary, this application has the following beneficial technical effects:

[0021] 1. The motor is easy to dissipate heat. The housing provided can limit the installation positions of the stator, the rotor and the rotating shaft. The rotating shaft can limit the installation positions of the first fan blade and the second fan blade. The installation directions of the first fan blade and the second fan blade are consistent. When the present application is activated, the rotating shaft can synchronously drive the first fan blade and the second fan blade to rotate. The rotation of the first fan blade can inhale air from the rear of the housing, and the rotation of the second fan blade can discharge air from the exhaust cavity separated by the partition plate. This can effectively increase the air circulation speed inside the housing, so that the air can be replaced more quickly in the housing, and the heat dissipation effect of the motor can be enhanced.

[0022] 2. The motor facilitates heat dissipation. When the protective cover is closed, the butterfly bolt can limit the position between the protective cover and the housing, thereby protecting the stator, rotor, first fan blade and second fan blade installed inside the housing. The mounting plate cooperates with the bolts to fix the housing to the mounting surface. The reinforcement strip can reinforce the connection between the mounting plate and the housing. When the air inside the housing circulates, the second air guide plate arranged obliquely can guide the air to be discharged to the exhaust cavity, thereby making the air circulation inside the housing smoother.

[0023] 3. The motor is easy to dissipate heat. When the fan blades rotate, external air can enter the interior of the shell through the heat dissipation air inlet hole. The excess air inside the shell can be discharged outward through the exhaust cavity and the heat dissipation air outlet. The first air guide plate can guide the air discharged from the heat dissipation air outlet obliquely upward, so as to avoid the discharged hot air from entering the shell through the heat dissipation air inlet hole as much as possible. The filter net can filter out some foreign matter such as lint in the air circulating inside the heat dissipation air inlet hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a motor facilitating heat dissipation in an embodiment of the present application;

[0025] Figure 2 It is a schematic cross-sectional structure diagram of a motor facilitating heat dissipation in an embodiment of the present application;

[0026] Figure 3 It is a schematic cross-sectional structure diagram of the motor housing of a motor facilitating heat dissipation in an embodiment of the present application;

[0027] Figure 4 It is a motor facilitating heat dissipation in an embodiment of the present application Figure 2 and a schematic enlarged view of the structure at position A therein.

[0028] Explanation of reference numerals: 1, motor housing; 101, housing; 102, protective cover; 1021, circular plate; 1022, heat dissipation air inlet hole; 1023, heat dissipation air outlet; 1024, mounting hole; 103, wing bolt; 2, stator; 3, rotor; 4, first fan blade; 5, second fan blade; 6, partition plate; 7, exhaust cavity; 8, mounting plate; 9, reinforcing bar; 10, first air guide plate; 11, filter screen; 12, rotating shaft; 13, second air guide plate. Detailed implementation manners

[0029] The following further elaborates on the present application in conjunction with the attached Figures 1-4 drawings.

[0030] An embodiment of the present application discloses a motor facilitating heat dissipation. Referring to Figure 1 and Figure 2 , a motor facilitating heat dissipation includes a motor housing 1. A stator 2 and a rotor 3 are arranged inside the motor housing 1. The rotor 3 is located inside the stator 2. A rotating shaft 12 is fixedly connected inside the rotor 3. One end of the rotating shaft 12 penetrates through the motor housing 1. The first fan blade 4 and the second fan blade 5 are both arranged on the outer wall of the rotating shaft 12 and are respectively located on both sides of the rotor 3 for heat dissipation by rotating following the rotating shaft 12. A partition plate 6 is fixedly arranged on the inner wall of the motor housing 1 and is located above the stator 2. An exhaust cavity 7 is formed between the upper surface of the partition plate 6 and the inner wall of the motor housing 1.

[0031] In this embodiment, the housing 1 provided in the motor facilitating heat dissipation can limit the installation positions of the stator 2, the rotor 3, and the rotating shaft 12. The stator 2 is the stationary part of the motor, and the rotor 3 is the rotating part of the motor. When three-phase alternating current is passed through the stator 2 winding, a rotating magnetic field will be generated. The rotor 3 winding generates induced electromotive force and current under the action of the rotating magnetic field to form an electromagnetic torque. The rotation of the rotor 3 can realize the conversion of electrical energy into mechanical energy. At the same time, the rotation of the rotor 3 can drive the installed rotating shaft 12 to rotate. Further, a first fan blade 4 and a second fan blade 5 are respectively fixedly installed on the outer walls of the rotating shaft 12 on both sides of the rotor 3. Moreover, the first fan blade 4 is located at the tail of the housing 1, and the first fan blade 4 and the second fan blade 5 face the same direction. A partition plate 6 for separating an exhaust cavity 7 is installed inside the housing 1. When the motor starts, the first fan blade 4 and the second fan blade 5 can be synchronously driven to rotate by the rotating shaft 12. The rotation of the first fan blade 4 is responsible for sucking air from the tail of the housing 1, and the rotation of the second fan blade 5 is responsible for discharging the air outward through the exhaust cavity 7. Through the coordinated use of the first fan blade 4 and the second fan blade 5 in this application, the air flow speed inside the housing 1 can be effectively increased, enabling the air to be replaced faster inside the housing 1, thereby enhancing the heat dissipation effect of the motor and making this application more conducive to practical use.

[0032] In a further preferred embodiment of the present utility model, as Figure 2 , Figure 3 and Figure 4 shown, the housing 1 includes a housing body 101. The stator 2, the rotor 3, the first fan blade 4, and the second fan blade 5 are all located inside the housing body 101. A protective cover 102 is hinged at the top of one side of the housing body 101, and a butterfly bolt 103 is threadedly connected between the side of the protective cover 102 away from the hinged part with the housing body 101 and the housing body 101.

[0033] In this embodiment, the provided protective cover 102 can be opened and closed as needed. When the protective cover 102 is closed, the closing position between it and the housing body 101 can be restricted by the butterfly bolt 103. After the protective cover 102 is closed, it can protect the stator 2, the rotor 3, the first fan blade 4, and the second fan blade 5 installed inside the housing body 101.

[0034] In a further preferred embodiment of the present utility model, as Figure 2 , Figure 3 and Figure 4As shown, the protective cover 102 includes a circular plate 1021 hinged to one side of the housing 101. A plurality of heat dissipation air inlet holes 1022 penetrating the circular plate 1021 are evenly formed on the circular plate 1021. A heat dissipation air outlet 1023 communicating with the exhaust chamber 7 is formed on the circular plate 1021. An installation hole 1024 is formed on the circular plate 1021. A wing bolt 103 passes through the inside of the installation hole 1024, and the two are rotatably connected.

[0035] In this embodiment, when the fan blade rotates, the outside air can enter the inside of the housing 101 through the formed heat dissipation air inlet holes 1022. The redundant air inside the housing 101 can be discharged outward through the cooperation of the exhaust chamber 7 and the heat dissipation air outlet 1023. The formed installation hole 1024 facilitates the installation and use of the wing bolt 103.

[0036] In a further preferred embodiment of the present utility model, as Figure 1 、 Figure 2 and Figure 3 shown, a first air guide plate 10 is fixedly connected to the side of the circular plate 1021 away from the housing 101. The first air guide plate 10 is located between the heat dissipation air inlet holes 1022 and the heat dissipation air outlet 1023, and is inclined.

[0037] In this embodiment, when the air is discharged outward from the heat dissipation air outlet 1023, the first air guide plate 10 can guide the discharged air obliquely upward, so as to avoid the discharged hot air entering the housing 101 through the heat dissipation air inlet holes 1022 as much as possible.

[0038] In a further preferred embodiment of the present utility model, as Figure 2 and Figure 4 shown, a filter screen 11 is bolted to the inner wall of the circular plate 1021. The filter screen 11 is located on one side of the plurality of heat dissipation air inlet holes 1022.

[0039] In this embodiment, when the air flows through the heat dissipation air inlet holes 1022, the filter screen 11 can filter out some foreign matters such as fluff in the air.

[0040] In a further preferred embodiment of the present utility model, as Figure 1 、 Figure 2 and Figure 3 shown, a mounting plate 8 is fixedly connected to the lower surface of the housing 101. Reinforcing strips 9 are fixedly connected between the outer walls on both sides of the housing 101 and the upper surface of the mounting plate 8.

[0041] In this embodiment, through the cooperation of the mounting plate 8 and bolts, the housing 101 can be fixed on the mounting surface. The reinforcing strips 9 can reinforce the connection between the mounting plate 8 and the housing 101.

[0042] In a further preferred embodiment of the present utility model, as Figure 2 shown, a second air guide plate 13 is fixedly connected to the inner wall of the housing 101 on the side away from the protective cover 102, and the rotating shaft 12 passes through the second air guide plate 13.

[0043] In this embodiment, the provided second air guide plate 13 is inclined. When the air inside the housing 101 circulates, the second air guide plate 13 can direct the air to be discharged to the exhaust cavity 7, so that the air circulation inside the housing 101 is smoother.

[0044] The implementation principle of a motor facilitating heat dissipation in an embodiment of this application is as follows:

[0045] During use, the first fan blade 4 and the second fan blade 5 are kept in the same orientation and are respectively installed on the outer wall of the rotating shaft 12 on both sides of the rotor 3. When this application is started, the first fan blade 4 and the second fan blade 5 can be synchronously driven to rotate by the rotating shaft 12. The rotation of the first fan blade 4 is responsible for sucking air from the tail of the machine housing 1, and the rotation of the second fan blade 5 discharges the air outwards from the exhaust cavity 7 separated by the partition plate 6. Through the combined use of the first fan blade 4 and the second fan blade 5 in this application, the air circulation speed inside the machine housing 1 can be effectively increased, enabling the air to be replaced faster inside the machine housing 1, thereby enhancing the heat dissipation effect of the motor and making this application more conducive to practical use.

[0046] The above are all preferred embodiments of this application. Without restricting the protection scope of this application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A motor facilitating heat dissipation, comprising a casing (1), characterized in that: Inside the casing (1), a stator (2) and a rotor (3) are provided. The rotor (3) is located inside the stator (2). A rotating shaft (12) is fixedly connected inside the rotor (3), and one end of the rotating shaft (12) penetrates the casing (1). A first fan blade (4) and a second fan blade (5) are both arranged on the outer wall of the rotating shaft (12) and are respectively located on both sides of the rotor (3) for heat dissipation by rotating with the rotating shaft (12); and A partition plate (6) is fixedly arranged on the inner wall of the casing (1) and is located above the stator (2). An exhaust air cavity (7) is formed between the upper surface of the partition plate (6) and the inner wall of the casing (1).

2. The motor for facilitating heat dissipation according to claim 1, wherein: The casing (1) includes a housing (101). The stator (2), the rotor (3), the first fan blade (4), and the second fan blade (5) are all located inside the housing (101). A protective cover (102) is hinged to the top of one side of the housing (101), and a butterfly bolt (103) is threadedly connected between the side of the protective cover (102) away from the hinged part with the housing (101) and the housing (101).

3. The motor for facilitating heat dissipation according to claim 2, wherein: The protective cover (102) includes a circular plate (1021) hinged to one side of the housing (101). A plurality of heat dissipation air inlet holes (1022) penetrating the circular plate (1021) are evenly arranged on the circular plate (1021). A heat dissipation air outlet (1023) communicating with the exhaust air cavity (7) is arranged on the circular plate (1021). An installation hole (1024) is arranged on the circular plate (1021). The butterfly bolt (103) passes through the inside of the installation hole (1024), and the two are rotatably connected.

4. The motor facilitating heat dissipation according to claim 2, wherein: The lower surface of the housing (101) is fixedly connected with a mounting plate (8), and reinforcing strips (9) are fixedly connected between the outer walls on both sides of the housing (101) and the upper surface of the mounting plate (8).

5. The motor facilitating heat dissipation according to claim 2, wherein: A second air guide plate (13) is fixedly connected to the inner wall of the housing (101) on the side away from the protective cover (102), and the rotating shaft (12) penetrates the second air guide plate (13).

6. The motor facilitating heat dissipation according to claim 3, wherein: A first air guide plate (10) is fixedly connected to the side of the circular plate (1021) away from the housing (101). The first air guide plate (10) is located between the heat dissipation air inlet holes (1022) and the heat dissipation air outlet (1023) and is inclined.

7. The motor facilitating heat dissipation according to claim 3, wherein: A filter screen (11) is bolted to the inner wall of the circular plate (1021). The filter screen (11) is located on one side of the plurality of heat dissipation air inlet holes (1022).

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