Protection device of motor driver

Abstract

The utility model relates to a protection device of a motor driver, which comprises a driver body and a dustproof box, and further comprises a mounting plate for mounting the driver body and the dustproof box, and the outer wall of the driver body is provided with an air outlet and a joint; the dustproof box is arranged to be a conical sleeve, the dustproof box is communicated with the driver body through a rubber rectangular sleeve, and the fan is installed on the upper end face of the dustproof box through an air inlet channel; the inserting plate penetrates through the outer wall of the rubber rectangular sleeve and is slidably arranged with the rubber rectangular sleeve; and the first filter screen is mounted in the rubber rectangular sleeve. According to the utility model, on the basis of the structural arrangement that the deflector rod type reciprocating displacement is adopted and the fan is externally arranged, an air path is prevented from being blocked, and the air velocity is prevented from being influenced to influence the heat dissipation effect; the rubber rectangular sleeve is connected with the dustproof box and the driver body, so that the working vibration of the fan and the air cylinder is prevented from influencing the working of the driver body, and the operation reliability is improved; and an insertion plate and a first filter screen are arranged, so that the dustproof performance is further improved, and cleaning is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of motor drivers, in particular to a protection device for a motor driver. Background Art

[0002] A motor driver is an actuator that can convert electrical pulses into angular displacement and is an important electronic control component in a motor.

[0003] A motor driver generally includes a housing structure and a circuit board installed inside the housing. During operation, part of the electrical energy is converted into heat energy, so the temperature inside the housing will be higher than room temperature. For this reason, a fan structure is installed on the motor driver to cool the motor driver by air cooling.

[0004] However, when the fan is working, it will not only generate an adsorption force on the external air flow, but also generate an adsorption force on the dust in the air. Therefore, the dust will enter the inside of the motor driver along with the air flow, which will further affect the normal heat dissipation of the motor driver.

[0005] Chinese Utility Model Patent CN219760886U discloses a DC motor driver with a protection structure. The DC motor driver with a protection structure includes a mounting plate, and a driver body is also installed on the mounting plate. An air hole is opened on the side of the driver body. It further includes: a housing, which is bolted to one side of the driver body, and a fan mounting seat is arranged between the housing and the driver body. A fan is installed inside the fan mounting seat, and the air outlet port of the fan mounting seat is exactly opposite to the opening on the side of the driver body, and the air inlet port is communicated with the inside of the housing; an arc-shaped filter cloth and a cleaning member capable of knocking the filter cloth are also fixed inside the housing. The filter cloth can intercept the dust in the air flow, so as to avoid the accumulation of dust inside the driver body, and a cleaning member capable of cleaning the filter cloth is also provided to improve the service life of the filter cloth.

[0006] It solves the technical problem of dust interception and cleaning, but there are still the following defects:

[0007] 1. The cleaning of the filter cloth uses a rotating knocking plate, which rotates with the cooperation of a motor to pat the filter cloth. Moreover, its fan is located in the air duct, which will block the air path, affect the air flow rate, and thus affect the heat dissipation performance;

[0008] 2. Its cleaning and filtering components are rigidly connected to the driver body, and the working vibrations of the motor and the fan will affect the operation of the driver body, making it inconvenient to use;

[0009] Based on the above technical problems, a protection device for a motor driver is needed for heat dissipation and dust prevention. Summary of the Invention

[0010] Technical problems to be solved by the utility model

[0011] The existing protection structure uses a rotating knocking plate to clean the filter cloth, which rotates with the cooperation of a motor to pat the filter cloth. Moreover, its fan is located inside the air duct, which will cause blockage of the air path, affect the air flow rate, and thus affect the heat dissipation performance. The cleaning and filtering components are rigidly connected to the driver body, and the working vibrations of the motor and the fan will affect the operation of the driver body, making it inconvenient to use.

[0012] Technical solutions for solving the technical problems

[0013] Other advantageous and partially inventive embodiments and extended designs of the present utility model are described in the following description.

[0014] A protection device for a motor driver, comprising a driver body and a dust-proof box, and further comprising a mounting plate for mounting the driver body and the dust-proof box. An air outlet and a connector are provided on the outer wall of the driver body;

[0015] The dust-proof box is provided as a conical sleeve, and the dust-proof box is communicated with the driver body through a rubber rectangular sleeve. The dust-proof box further comprises:

[0016] A fan, which is installed on the upper end surface of the dust-proof box through an air inlet duct;

[0017] A plug board, which penetrates through the outer wall of the rubber rectangular sleeve and is slidably arranged with the rubber rectangular sleeve;

[0018] A first filter screen, which is installed inside the rubber rectangular sleeve;

[0019] A filter cloth, which is installed at the end of the dust-proof box far from the rubber rectangular sleeve.

[0020] Preferably, the fan is communicated with the dust-proof box through an air inlet duct, and the air inlet duct is arranged at an angle with the dust-proof box and points to the driver body.

[0021] Preferably, a lever is further arranged inside the dust-proof box, and the lever is slidably arranged vertically inside the dust-proof box;

[0022] The lever is located on one side of the filter cloth.

[0023] Preferably, a sliding groove for the lever to slide is provided on the outer wall of the dust-proof box.

[0024] Preferably, a cylinder is arranged on the mounting plate and on one side of the dust-proof box, and the output end of the cylinder is connected to the end of the lever through a connecting rod.

[0025] Preferably, the connecting rod is provided as a "Z"-shaped rod.

[0026] Preferably, the cross-sectional area of the end of the conical sleeve away from the drive body is larger than that of the end close to the drive body.

[0027] Effects of the utility model

[0028] 1. By adopting the structure of reciprocating displacement of the lever type and external placement of the fan, it avoids blocking the air path and affecting the air flow rate, thus affecting the heat dissipation effect.

[0029] 2. A rubber rectangular sleeve is provided to connect the dust-proof box and the drive body, avoiding the working vibration of the fan and the cylinder from affecting the operation of the drive body and improving the operation reliability.

[0030] 3. An insertion plate and a first filter screen are provided to further improve the dust-proof performance and facilitate cleaning. Description of the drawings

[0031] The embodiments of the present utility model will be described in detail below with reference to the drawings. In the drawings:

[0032] Figure 1 is the first structural view of the present utility model;

[0033] Figure 2 is the second structural view of the present utility model;

[0034] Figure 3 is the structural view of the present utility model with a part of the dust-proof box hidden;

[0035] Figure 4 is the above Figure 2 partial enlarged view of "A";

[0036] Figure 5 is the cross-sectional view of the dust-proof box included in the present utility model.

[0037] Description of the reference numerals

[0038] 1. Mounting plate; 2. Drive body; 201. Air outlet; 202. Connector; 3. Dust-proof box; 301. Rubber rectangular sleeve; 301-1. Insertion plate; 301-2. First filter screen; 302. Fan; 302-1. Air inlet duct; 303. Filter cloth; 303-1. Lever; 303-2. Cylinder; 303-3. Connecting rod. Detailed implementation manners

[0039] Hereinafter, a protection device for an electric motor drive, which is an embodiment of the present utility model, will be described with reference to the drawings.

[0040] Please refer to Figures 1 - 5As shown in the figure, a protection device for a motor driver includes a driver body 2 and a dust-proof box 3. The dust-proof box 3 is used to block dust from entering the driver body 2, and also includes a mounting plate 1 for mounting the driver body 2 and the dust-proof box 3;

[0041] Regarding the driver body 2, it is fixed to the upper end surface of the mounting plate 1;

[0042] One end of the driver body 2 is provided with an exhaust port 201, and one side of the driver body 2 is provided with a connector 202;

[0043] Specifically, the exhaust port 201 is used to discharge the hot air inside the driver body 2, and the connector 202 is used to connect the motor;

[0044] Regarding the dust-proof box 3, it is set as a conical sleeve and includes:

[0045] A fan 302 is arranged on the upper end surface of the dust-proof box 3;

[0046] An air inlet duct 302-1 is obliquely installed on the upper end surface of the dust-proof box 3 and points to the driver body 2;

[0047] Specifically, the fan 302 blows air into the driver body 2 through the air inlet duct 302-1. The air circulates inside the driver body 2 and then is discharged through the exhaust port 201 to achieve the cooling of the inside of the driver body 2;

[0048] More specifically, the fan 302 adopts a filtering fan 302 with a filter. Since the air inlet duct 302-1 is arranged at an angle with the dust-proof box 3 and points to the driver body 2, based on the siphon effect, the air enters from the direction where the dust-proof box 3 is installed with a filter cloth 303, which can avoid the air path blockage caused by the fan blades of the fan 302 and the motor of the fan 302 and affect the heat dissipation effect;

[0049] A rubber rectangular sleeve 301 is used to connect the dust-proof box 3 and the driver body 2;

[0050] Specifically, the inside of the dust-proof box 3 is communicated with the inside of the driver body 2 through the rubber rectangular sleeve 301;

[0051] A plug board 301-1 is installed at the joint where the rubber rectangular sleeve 301 fits with the driver body 2;

[0052] A first filter screen 301-2 is installed inside the rubber rectangular sleeve 301;

[0053] Specifically, the staff can close the air inlet end of the driver body 2 by moving the plug board 301-1, and then remove the dust-proof box 3 and the first filter screen 301-2 for cleaning;

[0054] A filter cloth 303 is installed at the end of the dust-proof box 3 far from the rubber rectangular sleeve 301;

[0055] The lever 303-1 is installed inside the dust-proof box 3 and on one side of the filter cloth 303. A sliding groove for the lever 303-1 to slide through is provided through the outer wall of the dust-proof box 3.

[0056] The air cylinder 303-2 is arranged on the mounting plate 1 and its output end is connected to the lever 303-1 through a connecting rod 303-3.

[0057] Specifically, the connecting rod 303-3 is set as a "Z"-shaped rod.

[0058] That is, during use, the air cylinder 303-2 is intermittently started, and the lever 303-1 is driven by the connecting rod 303-3 to perform vertical reciprocating displacement. Since the filter cloth 303 bulges towards the driver body 2 in the working state, during the vertical displacement of the lever 303-1, it can contact the filter cloth 303, thereby driving the filter cloth 303 to vibrate and removing the dust and other adsorbed substances adsorbed on the filter cloth 303.

[0059] The cross-sectional area of the end of the conical sleeve away from the driver body 2 is larger than the cross-sectional area of its end close to the driver body 2.

[0060] Normal use state

[0061] The staff installs the driver body 2 to the working position through the mounting plate 1 and wires it to the motor through the connector 202. In the working state:

[0062] The fan 302 works, and through the siphon effect of the air inlet duct 302-1 and the dust-proof box 3, air is inhaled from the side of the dust-proof box 3 equipped with the filter cloth 303, pressurized through the conical sleeve, and blown into the driver body 2 to complete heat dissipation.

[0063] During the heat dissipation process, if dust in the air enters the driver body 2, it will affect the normal operation of the driver body 2 and cause abnormal temperature.

[0064] Based on the setting of the first filter screen 301-2, initial interception of dust can be carried out.

[0065] Based on the setting of the filter cloth 303, the dust-proof effect is further improved, and there is a lever 303-1 driven by the air cylinder 303-2 to pat the filter cloth 303 to realize the cleaning of the filter cloth 303.

[0066] Through the settings of the first filter screen 301-2, the filter cloth 303, and the lever 303-1, dust-proof inside the driver body 2 is realized.

[0067] Compared with the prior art, the present utility model has the following characteristics:

[0068] 1. The structure with a reciprocating displacement of the lever 303-1 type and an external placement of the fan 302 is adopted to avoid blocking the air path, affecting the air flow rate and thus the heat dissipation effect.

[0069] 2. A rubber rectangular sleeve 301 is provided to connect the dust-proof box 3 and the driver body 2, avoiding the working vibration of the fan 302 and the cylinder 303-2 from affecting the operation of the driver body 2 and improving the operation reliability.

[0070] 3. A plug board 301-1 and a first filter screen 301-2 are provided to further improve the dust-proof performance and facilitate cleaning.

[0071] The utility model is not limited to the implementation mode, and various deformations can be implemented as long as its purpose is not violated.

Claims

1. A protective device for a motor driver, comprising a driver body (2) and a dustproof box (3), characterized in that: It also includes a mounting plate (1) for mounting the driver body (2) and the dustproof box (3); an outer wall of the driver body (2) is provided with an exhaust port (201) and a joint (202); The dustproof box (3) is configured as a conical sleeve, the dustproof box (3) is connected to the driver body (2) via a rubber rectangular sleeve (301), and further comprises: A fan (302) is installed on the upper end surface of the dustproof box (3) through an air inlet duct (302-1); An inserting plate (301-1) penetrates the outer wall of the rubber rectangular sleeve (301) and is slidably arranged with the rubber rectangular sleeve (301); A first filter screen (301-2) is installed inside the rubber rectangular sleeve (301); The filter cloth (303) is installed at the end of the dustproof box (3) away from the rubber rectangular sleeve (301).

2. The protection device for a motor driver according to claim 1, characterized in that: The fan (302) is connected to the dustproof box (3) via an air inlet duct (302-1); the air inlet duct (302-1) is arranged at an angle to the dustproof box (3) and points to the driver body (2).

3. The protection device for a motor driver according to claim 1, characterized in that: A lever (303-1) is also provided inside the dustproof box (3), and the lever (303-1) is arranged to slide vertically inside the dustproof box (3); The lever (303-1) is located on one side of the filter cloth (303).

4. The protection device for a motor driver according to claim 3, characterized in that: The outer wall of the dustproof box (3) is provided with a sliding groove for the lever (303-1) to slide.

5. The protection device for a motor driver according to claim 3, characterized in that: A cylinder (303-2) is provided on the mounting plate (1) and on one side of the dustproof box (3); an output end of the cylinder (303-2) is connected to an end of the shifting rod (303-1) via a connecting rod (303-3).

6. The protection device for a motor driver according to claim 5, characterized in that: The connecting rod (303-3) is configured as a "Z"-shaped rod.

7. The protection device for a motor driver according to claim 1, characterized in that: The cross-sectional area of ​​the end of the conical sleeve away from the driver body (2) is larger than the cross-sectional area of ​​the end of the conical sleeve close to the driver body (2).

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