Electric actuating mechanism convenient for heat dissipation

Abstract

The utility model discloses an electric actuating mechanism convenient for heat dissipation, and particularly relates to the technical field of electric actuating mechanisms, which comprises a shell, a motor is arranged in the shell, the output end of the motor is connected with a screw rod, the end part of the screw rod is provided with a transmission head, the screw rod is sleeved with a sliding block, and the top end of the shell is provided with a top cover. The sliding block penetrates through the top cover to be connected with a moving frame, a rear cover is installed on one side of the shell, a pumping and draining assembly is installed on the rear cover, a first one-way valve and a second one-way valve are installed in the positions, on the two sides of the motor, of the shell correspondingly, a filtering assembly is arranged on the outer side of the second one-way valve, and a partition plate is arranged in the shell. A transmission cavity is formed in one side of the partition plate, a heat dissipation cavity is formed in the other side of the partition plate, and the motor is installed on the partition plate located on one side of the heat dissipation cavity. According to the utility model, automatic ventilation can be carried out on the periphery of the motor, heat dissipation can be carried out in the ventilation process, the heat dissipation effect is good, and heat accumulation can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of electric actuator technology, and more specifically, to an electric actuator that is easy to dissipate heat. Background Technology

[0002] Electric actuators are widely used in modern industrial production and automated control systems, and the stable operation of their core component, the motor, is crucial to the overall performance of the equipment. Traditional electric actuator designs often focus on improving mechanical transmission and control precision, but they suffer from significant shortcomings in addressing the issue of motor heat dissipation.

[0003] When a motor is running, it continuously generates heat due to internal resistance and mechanical friction. In enclosed or poorly ventilated environments, this heat accumulates rapidly. For example, electric actuators may operate in harsh conditions with high temperature, high humidity, and high dust levels. Traditional designs cannot dissipate the motor heat in time, causing the motor temperature to rise significantly. Excessive temperature severely interferes with the motor's electromagnetic performance, reduces its conversion efficiency, causes fluctuations in output power, and directly weakens the electric actuator's ability to precisely control valves, baffles, and other equipment. This leads to inaccurate production process control and makes it difficult to guarantee consistent product quality.

[0004] Therefore, an electric actuator that facilitates heat dissipation is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an electric actuator that is easy to dissipate heat, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric actuator with easy heat dissipation, comprising a housing, a motor installed inside the housing, a lead screw connected to the output end of the motor, a transmission head installed at the end of the lead screw, a slider sleeved on the lead screw, a top cover installed at the top of the housing, a movable frame connected to the slider through the top cover, a rear cover installed on one side of the housing, a suction assembly installed on the rear cover, a first one-way valve and a second one-way valve respectively installed inside the housing on both sides of the motor, and a filter assembly provided outside the second one-way valve.

[0007] Preferably, a partition is provided inside the housing, a transmission cavity is formed on one side of the partition, and a heat dissipation cavity is formed on the other side. The motor is mounted on the partition located on the side of the heat dissipation cavity, and one end of the exhaust assembly is slidably engaged with the heat dissipation cavity.

[0008] Preferably, an air inlet and an exhaust outlet are respectively provided on both sides of the heat dissipation cavity. A second one-way valve is installed in the air inlet, and a filter assembly is installed on the outside of the second one-way valve. A first one-way valve is installed in the exhaust outlet.

[0009] Preferably, the top cover has a sliding groove, and the slider slides in cooperation with the sliding groove.

[0010] Preferably, the extraction assembly includes an electric push rod and a piston. The electric push rod is mounted on the rear cover, and the telescopic end of the electric push rod is connected to a piston that is slidably connected to the inner wall of the heat dissipation cavity.

[0011] Preferably, the filter assembly includes a filter plate and a fixing frame, the filter plate is screwed onto the air inlet, and a fixing frame is welded to the outside of the filter plate and pressed around the air inlet.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] By operating the exhaust assembly, a negative pressure is generated inside the heat dissipation chamber. Outside air is filtered by the filter assembly and enters the heat dissipation chamber through the second one-way valve. After absorbing the heat from the motor, it is discharged through the first one-way valve, realizing automatic ventilation and heat dissipation, improving heat dissipation efficiency, avoiding heat accumulation in the motor, and ensuring stable motor operation.

[0014] The transmission chamber and heat dissipation chamber are formed by setting a partition inside the outer shell. The motor is installed on the partition on one side of the heat dissipation chamber. The space is reasonably planned so that the transmission and heat dissipation do not interfere with each other. The sliding groove on the top cover and the sliding block cooperate to ensure smooth transmission. The electric push rod and piston structure of the exhaust assembly effectively change the air pressure in the heat dissipation chamber to realize the air in and out.

[0015] The filter plate of the filter assembly is screwed onto the air inlet and fixed by the fixing frame. It can effectively filter dust in the air and prevent it from affecting the operation of the motor. It is also easy to disassemble and install, convenient for maintenance and cleaning, and extends the service life of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a side view of the three-dimensional structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the extraction and discharge assembly of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the filter assembly of this utility model.

[0021] The attached figures are labeled as follows: 1. Outer shell; 2. Top cover; 3. Movable frame; 4. Rear cover; 5. Extraction assembly; 501. Electric actuator; 502. Piston; 6. Filter assembly; 601. Filter plate; 602. Fixing frame; 7. First check valve; 8. Partition plate; 9. Heat dissipation cavity; 10. Transmission cavity; 11. Motor; 12. Lead screw; 13. Transmission head; 14. Slider; 15. Second check valve. Detailed Implementation

[0022] 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.

[0023] As attached Figures 1-5 The electric actuator shown includes a housing 1, a motor 11 installed inside the housing 1, a lead screw 12 connected to the output end of the motor 11, a transmission head 13 installed at the end of the lead screw 12, a slider 14 sleeved on the lead screw 12, a top cover 2 installed at the top of the housing 1, the slider 14 passing through the top cover 2 and connected to a movable frame 3, a rear cover 4 installed on one side of the housing 1, a suction and exhaust assembly 5 installed on the rear cover 4, a first one-way valve 7 and a second one-way valve 15 respectively installed inside the housing 1 on both sides of the motor 11, and a filter assembly 6 provided on the outside of the second one-way valve 15.

[0024] In practice, the motor 11 operates, causing the lead screw 12 to rotate, which in turn causes the transmission head 13 to rotate. The slider 14 slides with the top cover 2, allowing the slider 14 to move the moving frame 3 along the direction of the groove on the top cover 2, thus enabling operation. During the operation of the motor 11, the exhaust assembly 5 operates, filtering the air in the filter assembly 6 before it enters the vicinity of the motor 11 through the second one-way valve 15 to absorb the heat generated by the motor 11. The air is then discharged through the first one-way valve 7, thus enabling automatic ventilation and heat dissipation during ventilation, improving heat dissipation efficiency and preventing heat accumulation.

[0025] The outer casing 1 is provided with a partition 8. A transmission cavity 10 is formed on one side of the partition 8 and a heat dissipation cavity 9 is formed on the other side. The motor 11 is mounted on the partition 8 located on one side of the heat dissipation cavity 9. One end of the extraction assembly 5 is slidably engaged with the heat dissipation cavity 9.

[0026] The heat dissipation cavity 9 has an air inlet and an exhaust outlet on both sides. A second one-way valve 15 is installed in the air inlet, and a filter assembly 6 is installed on the outside of the second one-way valve 15. A first one-way valve 7 is installed in the exhaust outlet.

[0027] In practice, the operation of the exhaust assembly 5 creates a negative pressure in the heat dissipation chamber 9, thereby drawing outside air into the heat dissipation chamber 9 through the second one-way valve 15 after it has been filtered by the filter assembly 6. The exhaust assembly 5 then pressurizes the heat dissipation chamber 9, causing the air in the heat dissipation chamber 9 that has absorbed the heat generated by the motor 11 to be discharged through the first one-way valve 7. This enables automatic ventilation and heat dissipation. The exhaust method increases the ventilation volume, and the two one-way valves prevent air backflow, ensuring the heat dissipation effect and avoiding backflow.

[0028] The top cover 2 is provided with a sliding groove, and the slider 14 slides in the sliding groove.

[0029] The extraction assembly 5 includes an electric push rod 501 and a piston 502. The electric push rod 501 is mounted on the rear cover 4, and the extension end of the electric push rod 501 is connected to the piston 502, which is slidably connected to the inner wall of the heat dissipation cavity 9.

[0030] In practice, by extending and retracting the electric actuator 501, the piston 502 can slide within the heat dissipation chamber 9, thereby changing the air pressure within the heat dissipation chamber 9. This facilitates the intake of outside air through the second one-way valve 15 and the discharge through the first one-way valve 7, thereby dissipating heat from the motor 11 and ensuring its stable operation.

[0031] The filter assembly 6 includes a filter plate 601 and a fixing frame 602. The filter plate 601 is screwed onto the air inlet, and the fixing frame 602, which is pressed against the air inlet, is welded to the outside of the filter plate 601.

[0032] In practice, the air entering the air inlet is filtered by the filter plate 601 to improve the cleanliness of the incoming gas, thereby avoiding the impact of dust on the operation of the motor 11. At the same time, by rotating the fixing frame 602, the filter assembly 6 can be disassembled and installed as a whole by screwing the filter plate 601 to the air inlet, thus improving the convenience of disassembly and assembly.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electric actuator that facilitates heat dissipation, comprising a housing (1), characterized in that: A motor (11) is installed inside the outer casing (1). A lead screw (12) is connected to the output end of the motor (11). A transmission head (13) is installed at the end of the lead screw (12). A slider (14) is sleeved on the lead screw (12). A top cover (2) is installed at the top of the outer casing (1). A movable frame (3) is connected through the top cover (2). A rear cover (4) is installed on one side of the outer casing (1). A suction and discharge assembly (5) is installed on the rear cover (4). A first one-way valve (7) and a second one-way valve (15) are installed in the outer casing (1) on both sides of the motor (11). A filter assembly (6) is provided on the outside of the second one-way valve (15).

2. The electric actuator with heat dissipation as described in claim 1, characterized in that: The outer casing (1) is provided with a partition (8), a transmission cavity (10) is formed on one side of the partition (8), and a heat dissipation cavity (9) is formed on the other side. The motor (11) is installed on the partition (8) located on one side of the heat dissipation cavity (9). One end of the extraction assembly (5) is slidably engaged with the heat dissipation cavity (9).

3. The electric actuator with heat dissipation as described in claim 2, characterized in that: The heat dissipation cavity (9) has an air inlet and an exhaust outlet on both sides respectively. A second one-way valve (15) is installed in the air inlet. A filter assembly (6) is installed on the outside of the second one-way valve (15). A first one-way valve (7) is installed in the exhaust outlet.

4. The electric actuator with heat dissipation as described in claim 1, characterized in that: The top cover (2) has a sliding groove, and the slider (14) slides in cooperation with the sliding groove.

5. The electric actuator with heat dissipation as described in claim 1, characterized in that: The extraction assembly (5) includes an electric push rod (501) and a piston (502). The electric push rod (501) is mounted on the rear cover (4), and the extension end of the electric push rod (501) is connected to the piston (502) which is slidably connected to the inner wall of the heat dissipation cavity (9).

6. The electric actuator with heat dissipation as described in claim 1, characterized in that: The filter assembly (6) includes a filter plate (601) and a fixing frame (602). The filter plate (601) is screwed onto the air inlet, and the fixing frame (602) is welded to the outside of the filter plate (601) and pressed around the air inlet.

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