Constant-voltage and constant-power protection mechanism for motor

Abstract

The utility model discloses a motor constant-voltage constant-power protection mechanism, and particularly relates to the technical field of motor accessories, the motor constant-voltage constant-power protection mechanism comprises a protection shell and an opening and closing door, the opening and closing door is movably connected to the inner front face of the protection shell, a protection device is installed on the side face of the protection shell, and the protection device comprises a drying unit, a cleaning unit and a ventilation unit. The drying unit is installed on a side door of the protective shell, the cleaning unit is installed on the side face of the protective shell, and the ventilation unit is installed on the other side of the protective shell. According to the constant-voltage and constant-power protection mechanism for the motor, the air pump conveys air into the drying shell through the air inlet pipe, dust in the air is removed through the dust removal plate, the air is blown to the drying assembly, the air is heated through the electric heating pipe in the drying assembly, water molecules in the air are evaporated, and the air is dried. And dry air is blown into the protection shell, so that the situation that the service life of the motor is shortened due to high humidity in the protection shell is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of motor accessories, in particular to a motor constant voltage and constant power protection mechanism. Background Art

[0002] There are generally two forms of motor operation, one is constant torque operation, that is, during the operation, the change of speed does not affect the torque, and the other is constant power operation, that is, the power of the motor is constant during operation, the torque is high when the speed is low, and the torque is low when the speed is high. The second form is more common in engineering. For example, when a tram starts, a larger torque is required to drive it, but the speed requirement is very low, so constant power is more suitable in this occasion. During the constant power operation, a frequency converter is required. Therefore, to protect the constant power operation of the motor, it is only necessary to prevent the frequency converter from being disturbed during operation. However, the existing motor protection device generally does not have a housing to protect the frequency converter, and it needs to be installed separately. The additional protective housing is generally not designed as an integral whole, so it is troublesome to disassemble it. Therefore, the traditional protective housing is not convenient to use.

[0003] In the patent document with publication number CN 206727835 U3, a motor constant voltage and constant power protection mechanism is disclosed. The device can provide a mounting base for the inverter protection box by adding a protection mechanism mounting seat, so that the inverter can be stably installed. By adding a locking mechanism, the installation and removal of the inverter protection box can be facilitated. During installation, it is only necessary to insert the locking hook at the bottom of the inverter protection box into the card slot. Due to the arc-shaped structure of the upper edge of the card, the card is pushed to the left. When the lower hook of the locking hook passes over the bottom of the card, the card is locked. Due to the action of the locking spring, the card plate and the locking hook are locked and the installation can be completed. When disassembly is required, the rubber button is pressed, and the rubber button pushes the locking pin. The locking pin drives the card plate to compress the locking spring and the locking hook is taken out to complete the disassembly. It is very convenient. By adding the rubber gasket, the influence of the vibration generated by the motor during operation on the inverter can be reduced, thereby protecting the motor from constant power operation. In summary, the utility model has a simple structure, is easy to install and disassemble, can protect the inverter, and has good practical value.

[0004] However, the device cannot dry the internal environment of the motor, which may cause the motor to be in an environment with high humidity, thereby shortening the service life of the motor.

[0005] Therefore, we propose a motor constant voltage and constant power protection mechanism to solve the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a motor constant voltage and constant power protection mechanism, which can effectively solve the above problems.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A motor constant voltage and constant power protection mechanism, comprising a protection shell and a switch door, wherein the switch door is movably connected to the inner front of the protection shell, a protection device is installed on the side of the protection shell, and the protection device comprises a drying unit, a cleaning unit, and a ventilation unit, wherein the drying unit is installed on the side door of the protection shell, the cleaning unit is installed on the side of the protection shell, and the ventilation unit is installed on the other side of the protection shell;

[0009] The drying unit includes a drying shell, an air inlet pipe, an air pump, a dust removal plate, a drying component, an electric heating pipe, an energy component, and an air outlet pipe. The drying shell is fixedly connected to the side of the protective shell, the air inlet pipe is installed on the front of the drying shell, the air pump is fixedly connected to the outer surface of the air inlet pipe, the dust removal plate is fixedly connected to the inside of the drying shell, the drying component is fixedly connected to the inside of the drying shell, the energy component is installed in the inside of the drying component, the electric heating pipe is installed at the bottom of the energy component, and the air outlet pipe is fixedly connected to the back of the drying shell.

[0010] Preferably, the cleaning unit comprises a hydraulic rod, a cleaning plate, and a dust collecting port, wherein the dust collecting port is opened at the bottom of the drying shell, the hydraulic rod is installed at the top of the drying shell, and the cleaning plate is fixedly connected to the bottom of the hydraulic rod.

[0011] Preferably, the ventilation unit includes a blowing shell, a dust cover, and a ventilation assembly, the blowing shell is fixedly connected to the side of the protective shell, the dust cover is installed on the side of the blowing shell, and the ventilation assembly is fixedly connected to the inside of the blowing shell.

[0012] Preferably, a pull-out plate is movably connected inside the protective shell, and a motor is fixedly connected to the top of the pull-out plate.

[0013] Preferably, the ventilation assembly consists of a ventilation motor and ventilation blades. The ventilation motor is fixedly connected to the inside of the blowing shell, and the ventilation blades are fixedly connected to the output end of the ventilation motor.

[0014] Preferably, a plurality of air holes are provided on the outer surface of the drying component.

[0015] Preferably, a pulling hole is provided inside the pulling plate.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. By installing the drying unit, the air pump is started to transport air into the drying shell through the air inlet pipe, and the dust in the air is further removed by the dust removal plate, and then blown to the drying component. The air is heated by the electric heating tube inside the drying component to evaporate the water molecules in the air, and then the dry air is further blown into the protective shell, so as to prevent the high humidity inside the protective shell, which will shorten the service life of the motor.

[0018] 2. By installing the cleaning unit, the hydraulic rod is started, so that the hydraulic rod drives the cleaning plate to move downward repeatedly, and the dust on the surface of the dust removal plate is driven by the cleaning plate and discharged through the dust collecting port, thereby cleaning the surface of the dust removal plate to prevent the dust from clogging the internal air holes of the dust removal plate, thereby preventing air from entering normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the side structure of the device of the utility model;

[0021] Figure 3 This is a schematic diagram of the pull-out plate and motor structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the drying unit structure of the utility model;

[0023] Figure 5 This is a schematic diagram of the ventilation unit structure of the utility model.

[0024] In the figure: 101, protective shell; 102, switch door; 103, pull-out plate; 104, motor; 201, drying shell; 202, air inlet pipe; 203, air pump; 204, dust removal plate; 205, drying component; 206, electric heating pipe; 207, energy component; 208, air outlet pipe; 301, hydraulic rod; 302, cleaning plate; 303, dust collecting port; 401, blowing shell; 402, dust cover; 403, ventilation shell. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-5As shown, a motor constant voltage and constant power protection mechanism comprises a protection shell 101 and a switch door 102, wherein the switch door 102 is movably connected to the inner front of the protection shell 101, and a protection device is installed on the side of the protection shell 101, and the protection device comprises a drying unit, a cleaning unit, and a ventilation unit, wherein the drying unit is installed on the side door of the protection shell 101, the cleaning unit is installed on the side of the protection shell 101, and the ventilation unit is installed on the other side of the protection shell 101;

[0027] The drying unit includes a drying shell 201, an air inlet pipe 202, an air pump 203, a dust removal plate 204, a drying component 205, an electric heating pipe 206, an energy component 207, and an air outlet pipe 208. The drying shell 201 is fixedly connected to the side of the protective shell 101, the air inlet pipe 202 is installed on the front of the drying shell 201, the air pump 203 is fixedly connected to the outer surface of the air inlet pipe 202, the dust removal plate 204 is fixedly connected to the inside of the drying shell 201, the drying component 205 is fixedly connected to the inside of the drying shell 201, the energy component 207 is installed in the inside of the drying component 205, and the electric heating pipe 206 is installed on the energy component 207. At the bottom, the air outlet pipe 208 is fixedly connected to the back of the drying shell 201. By installing the drying unit, the air pump 203 is started, so that the air pump 203 conveys the air into the interior of the drying shell 201 through the air inlet pipe 202, and further removes the dust in the air through the dust removal plate 204, and further blows it to the drying component 205. The air is heated by the electric heating tube 206 inside the drying component 205 to evaporate the water molecules in the air, and then the dry air is further blown into the protective shell 101, so as to prevent the humidity inside the protective shell 101 from being high, which would shorten the service life of the motor 104.

[0028] The cleaning unit includes a hydraulic rod 301, a cleaning plate 302, and a dust collecting port 303. The dust collecting port 303 is opened at the bottom of the drying shell 201. The hydraulic rod 301 is installed on the top of the drying shell 201. The cleaning plate 302 is fixedly connected to the bottom of the hydraulic rod 301. By installing the cleaning unit, the hydraulic rod 301 is started, so that the hydraulic rod 301 drives the cleaning plate 302 to move downward repeatedly, and the dust on the surface of the dust removal plate 204 is driven by the cleaning plate 302 and discharged through the dust collecting port 303, so that the surface of the dust removal plate 204 is cleaned to prevent the dust from clogging the internal air vents of the dust removal plate 204, thereby preventing air from entering normally.

[0029] The ventilation unit includes a blowing shell 401, a dust cover 402, and a ventilation component 403. The blowing shell 401 is fixedly connected to the side of the protective shell 101, the dust cover 402 is installed on the side of the blowing shell 401, and the ventilation component 403 is fixedly connected to the inside of the blowing shell 401. By installing the ventilation unit and further starting the ventilation component 403, the air inside the protective shell 101 is guided by the ventilation component 403 and discharged through the ventilation component 403.

[0030] The protective shell 101 is movably connected to a pull-out plate 103, and the top of the pull-out plate 103 is fixedly connected to a motor 104, so that the motor 104 can be pulled out from the protective shell 101 through the pull-out plate 103, thereby facilitating maintenance and inspection of the motor 104 inside the protective shell 101.

[0031] The ventilation component 403 consists of a ventilation motor and ventilation fan blades. The ventilation motor is fixedly connected to the inside of the blowing shell 401, and the ventilation fan blades are fixedly connected to the output end of the ventilation motor. By starting the ventilation motor, the ventilation motor drives the ventilation fan blades to rotate, so that the air volume inside the protective shell 101 is circulated through the ventilation component 403, so that the motor 104 can dissipate heat.

[0032] The outer surface of the drying component 205 is provided with a plurality of air holes, so that the dried air is guided and exhausted through the air holes during drying by the drying component 205 .

[0033] A pull-out hole is provided inside the pull-out plate 103 , so that the pull-out plate 103 can be pulled out from the inside of the protective housing 101 through the pull-out hole, thereby facilitating maintenance of the motor 104 .

[0034] It should be noted that the specific installation method of the ventilation motor and motor 104, the circuit connection method and the control method used in the present invention are all conventional designs, and the present invention will not elaborate on them in detail.

[0035] The working principle of the utility model is as follows: by starting the air pump 203, the air pump 203 transports air into the interior of the drying shell 201 through the air inlet pipe 202, further removes dust in the air through the dust removal plate 204, and further blows it to the drying component 205, and heats the air through the electric heating tube 206 inside the drying component 205 to evaporate the water molecules in the air, thereby further blowing the dry air into the interior of the protective shell 101, thereby preventing the humidity inside the protective shell 101 from being high, thereby shortening the service life of the motor 104, and by starting the hydraulic rod 301, the hydraulic rod 301 drives the cleaning plate 302 to start moving downward repeatedly, and the dust on the surface of the dust removal plate 204 is driven by the cleaning plate 302 and discharged through the dust collecting port 303, thereby cleaning the surface of the dust removal plate 204, preventing too much dust from clogging the air vents inside the dust removal plate 204, and starting the ventilation component 403, and the ventilation component 403 guides the air inside the protective shell 101, so as to be discharged through the ventilation component 403.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A motor constant voltage and constant power protection mechanism, comprising a protection housing (101) and a switch door (102), characterized in that: The switch door (102) is movably connected to the inner front side of the protective shell (101); a protective device is installed on the side of the protective shell (101); the protective device comprises a drying unit, a cleaning unit and a ventilation unit; the drying unit is installed on the side of the protective shell (101); the cleaning unit is installed on the side of the protective shell (101); and the ventilation unit is installed on the other side of the protective shell (101); The drying unit comprises a drying shell (201), an air inlet pipe (202), an air pump (203), a dust removal plate (204), a drying component (205), an electric heating pipe (206), an energy component (207), and an air outlet pipe (208); the drying shell (201) is fixedly connected to the side of the protective shell (101); the air inlet pipe (202) is installed on the front of the drying shell (201); the air pump (203) is fixedly connected to the outer surface of the air inlet pipe (202); the dust removal plate (204) is fixedly connected to the inside of the drying shell (201); the drying component (205) is fixedly connected to the inside of the drying shell (201); the energy component (207) is installed in the inside of the drying component (205); the electric heating pipe (206) is installed at the bottom of the energy component (207); and the air outlet pipe (208) is fixedly connected to the back of the drying shell (201).

2. A motor constant voltage and constant power protection mechanism according to claim 1, characterized in that: The cleaning unit comprises a hydraulic rod (301), a cleaning plate (302), and a dust collecting port (303); the dust collecting port (303) is opened at the bottom of the drying shell (201); the hydraulic rod (301) is installed on the top of the drying shell (201); and the cleaning plate (302) is fixedly connected to the bottom of the hydraulic rod (301).

3. A motor constant voltage and constant power protection mechanism according to claim 1, characterized in that: The ventilation unit comprises a blowing shell (401), a dust cover (402), and a ventilation assembly (403); the blowing shell (401) is fixedly connected to the side of the protective shell (101); the dust cover (402) is installed on the side of the blowing shell (401); and the ventilation assembly (403) is fixedly connected to the inside of the blowing shell (401).

4. A motor constant voltage and constant power protection mechanism according to claim 1, characterized in that: A pull-out plate (103) is movably connected inside the protective shell (101), and a motor (104) is fixedly connected to the top of the pull-out plate (103).

5. The motor constant voltage and constant power protection mechanism according to claim 3, characterized in that: The ventilation assembly (403) consists of a ventilation motor and ventilation blades. The ventilation motor is fixedly connected to the inside of the blowing housing (401), and the ventilation blades are fixedly connected to the output end of the ventilation motor.

6. A motor constant voltage and constant power protection mechanism according to claim 1, characterized in that: The outer surface of the drying component (205) is provided with a plurality of air holes.

7. A motor constant voltage and constant power protection mechanism according to claim 4, characterized in that: A drawing hole is provided inside the drawing plate (103).

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