A parking air conditioner motor and interior unit assembly with periodic self-cleaning function

Abstract

The present invention discloses a parking air conditioner motor and an internal unit assembly with a periodic self-cleaning function, belonging to the field of motor technology. The parking air conditioner motor includes a stator, a rotor, a graded reduction mechanism, an air pumping mechanism, an air storage mechanism, a first jet mechanism and a counting mechanism. The graded reduction mechanism is connected to the rotor driving and outputs the rotor's rotation speed after graded reduction. The air pumping mechanism and the counting mechanism are respectively connected to one of the output ends of the graded reduction mechanism, so as to realize the action of pumping air into the air storage mechanism and controlling the opening of the air storage mechanism and delivering high-pressure gas to the first jet mechanism under the drive of the graded reduction mechanism. In this scheme, after the rotation speed of the rotor is reduced to a suitable speed by the graded reduction mechanism, the air pumping mechanism and the counting mechanism are driven to operate, and finally the surface of the parking air conditioner motor is cleaned. In addition, the assembly in this scheme realizes the synchronous cleaning of the impeller in the assembly through the second nozzle mechanism connected to the air storage mechanism.

Description

Technical Field

[0001] The invention relates to the field of parking air-conditioning motors, in particular to a parking air-conditioning motor with a periodic self-cleaning function and an internal unit assembly. Background Art

[0002] When the car is cooling or heating, the quality of the air drawn into the car is directly affected by the cleanliness of the car's internal ventilation system. Therefore, the ventilation system of the car needs to be maintained accordingly during car maintenance. Existing car maintenance usually only replaces the air filter element of the car, while other components of the car ventilation system hidden inside the car, such as the parking air conditioner motor and the internal machine assembly, are often not disassembled, cleaned, or cleaned because of the cumbersome disassembly and assembly. For this reason, a large amount of dust often accumulates on the surface of the parking air conditioner motor and the internal machine assembly, becoming a key area for mold growth in the car ventilation system. When the air passes through the surface of the above-mentioned components, it brings a moldy smell into the car, reduces the quality of the car, and even brings a large number of mold spores into the car, which brings a bad riding experience to the occupants and even has an adverse effect on the health of the occupants. Summary of the invention

[0003] The object of the present invention is to provide a parking air conditioner motor and an inner unit assembly with a periodic self-cleaning function, so as to achieve regular cleaning of the parking air conditioner motor surface and the inner unit assembly and reduce the breeding space of mold.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A parking air conditioner motor with a periodic self-cleaning function, comprising

[0006] stator;

[0007] The rotor is rotatably disposed in the stator and has two output shafts extending coaxially in both directions;

[0008] The step reduction mechanism comprises an input gear and at least two duplex gears, wherein the input gear is coaxially connected to one of the output shafts and is in reduction meshing engagement with one of the duplex gears, and the at least two duplex gears are in reduction meshing engagement engagement in the form of alternating large and small gears;

[0009] A pumping mechanism is drivingly connected to one of the double gears so as to be driven by the rotating double gears;

[0010] An air storage mechanism, which is in communication with the air pump mechanism and stores the air delivered by the air pump mechanism in a high-pressure state;

[0011] A first air injection mechanism is arranged outside the stator in a ring and connected to the air storage mechanism;

[0012] The counting mechanism is drivingly connected to one of the double gears that is not connected to the air pump mechanism, and realizes periodic rotation counting under the drive of the double gear connected thereto. The counting mechanism is electrically connected to the air storage mechanism to control the air storage mechanism to open and deliver high-pressure air to the jet mechanism after the count value reaches a preset value.

[0013] Preferably, the air pumping mechanism includes a cylinder body, which has an air outlet connected to an air storage mechanism. A piston is slidably arranged in the cylinder body to form a chamber, and an air passage is axially penetrated on the piston. A sealing sheet that can only be folded inward is hinged on the surface of the piston in the chamber, and the sealing sheet covers the air passage. A pull rod is hinged on the surface of the piston facing away from the chamber, and a crank is hinged on the end of the pull rod away from the piston. One end of the crank is fixedly connected to the rotating shaft of the corresponding double gear, and the double gear is rotated to drive the piston to reciprocate in the cylinder body. A one-way valve that conducts one-way traffic from the cylinder body to the air storage mechanism is provided on the air outlet of the cylinder body.

[0014] Preferably, the gas storage mechanism includes an air storage tank, and the air storage tank is provided with an air inlet channel and an air outlet channel. The air inlet channel is connected with the air pump mechanism through a pipeline, and the air outlet channel is provided with a solenoid valve. The solenoid valve is electrically connected to the counting mechanism to realize opening and closing under the control of the counting mechanism, and the first jet mechanism is connected to the solenoid valve.

[0015] Preferably, the gas storage tank is also provided with an overflow valve.

[0016] Preferably, the first jet mechanism comprises a support frame, the support frame is arranged on the outside of the stator, a plurality of first nozzles are arranged on the support frame at equal intervals, and the first nozzles are connected to the solenoid valve through a pipeline.

[0017] Preferably, the counting mechanism includes a toggle lever connected to the rotating shaft of the corresponding double gear, and also includes a counter. The double gear drives the toggle lever to rotate to periodically toggle the counting switch of the counter. The counter is electrically connected to the solenoid valve.

[0018] An internal machine assembly includes a volute, in which a parking air conditioner motor is installed, and in which an impeller is provided, and the impeller is drivingly connected to the parking air conditioner motor; and also includes a second jet mechanism, which is installed on the volute and communicated with an air storage mechanism to intermittently spray high-pressure air to rotating impeller blades.

[0019] Preferably, the second jet mechanism includes a plurality of second nozzles, which are inserted into the volute and arranged along the axial direction of the impeller. The second nozzles are inclined toward the impeller so as to be able to blow high-pressure air into the gaps between the impeller blades.

[0020] Preferably, the transmission ratio of the stepped reduction mechanism is a non-integer ratio.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This scheme uses a graded reduction mechanism to reduce the speed of the rotor and then drives the pumping mechanism to pump air and the counting mechanism to count. After the pressure is increased by the air storage mechanism, the counting mechanism controls the opening and closing of the air storage mechanism to periodically deliver high-pressure air to the first jet mechanism, thereby blowing up the surface of the parking air conditioner motor to clean up the dust on the surface of the parking air conditioner motor in time, avoid mildew on the surface of the motor, and ultimately effectively ensure the quality of the air in the car.

[0023] 2. The air pump mechanism in this scheme adopts a plunger form and is driven and connected to the graded reduction mechanism through a crank to achieve synchronous operation with the parking air conditioner motor, that is, during the air intake process of the assembly, the surface of the parking air conditioner motor is periodically blown up and cleaned with high pressure.

[0024] 3. A one-way valve is installed at the air outlet of the cylinder body to prevent the high-pressure gas in the air tank from backwashing and affecting the smooth operation of the pumping mechanism. The one-way valve can also effectively reduce the impact of pressure changes during the exhaust process of the air tank on the operation of the pumping mechanism.

[0025] 4. An overflow valve is installed on the gas tank so that after sufficient pressure of air is pumped into the gas tank, the excess pumped gas can be discharged through the overflow valve to prevent the gas tank from bursting due to excessive pressure.

[0026] 5. A second jet mechanism connected to the air storage mechanism is provided on the volute to clean the impeller which is easy to be cleaned, thereby ensuring the cleanliness of the impeller blade surface.

[0027] 6. When the transmission ratio of the stepped reduction mechanism is a non-integer ratio, the time point at which the counting mechanism controls the opening of the solenoid valve is converted into a non-repetitive position at which the second jet mechanism sprays on the impeller, so that the impeller can be more comprehensively cleaned by the high-pressure air. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 is a cross-sectional view of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the parking air conditioning motor in the present invention;

[0031] Figure 4 It is a left side view of the present invention;

[0032] Figure 5 It is an enlarged view of the mark Ⅰ of the present invention;

[0033] Figure 6 It is an enlarged view of the mark II of the present invention;

[0034] Figure 7 It is an enlarged view of the mark III of the present invention.

[0035] Figure numerals: 1. parking air conditioning motor; 11. stator; 12. rotor; 121. output shaft; 13. step-down mechanism; 131. input gear; 132. double gear; 14. pumping mechanism; 141. cylinder; 142. piston; 1421. air duct; 143. sealing plate; 144. pull rod; 145. crank; 146. one-way valve; 15. air storage mechanism; 151. air storage tank; 152. solenoid valve; 153. overflow valve; 16. first jet mechanism; 161. support frame; 162. first nozzle; 17. counting mechanism; 171. counter; 172. toggle lever; 2. volute; 3. impeller; 4. second jet mechanism; 41. second nozzle. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] It should be noted that the technical problem to be solved by this solution is mainly the problem of poor air quality in the car caused by the difficulty in disassembling the parking air-conditioning motor 1 and the indoor unit assembly, which makes it difficult to clean the dust on the surface of the parking air-conditioning motor 1 and the indoor unit assembly and causes mildew.

[0040] Specifically as 1, Figure 2 The parking air conditioning motor 1 with a periodic self-cleaning function shown in the figure includes a stator 11 mounted on a volute 2, a rotor 12 rotatably mounted in the stator 11 to form the main body of the parking air conditioning motor 1, and a structure capable of cleaning the outer surface of the stator 11 is mounted on the main body.

[0041] like Figure 3 As shown, the rotor 12 is a dual output shaft 121 structure, that is, it has two output shafts 121 extending coaxially in both directions, and a graded reduction mechanism 13 is installed on one of the output shafts 121 to reduce the output speed of the output shaft 121 and output it in grades.

[0042] Specifically, the step reduction mechanism 13 includes an input gear 131 and at least two double gears 132. The input gear 131 is coaxially and fixedly mounted on the output shaft 121 of the rotor 12 so as to be able to rotate synchronously with the rotor 12, and the double gears 132 are connected to the input gear 131 in a reduction transmission manner so that each double gear 132 can have a different output speed.

[0043] Specifically, the reduction connection method of the double gears 132 in this scheme is that the large gear part of the first double gear 132 is meshed with the input gear 131, and the small gear is meshed with the large gear of the next double gear 132, and then the large gear of the second double gear 132 is meshed with the small gear of the first double gear 132, and the large gear of the third double gear 132 is meshed with the small gear of the second double gear 132, and so on, to ensure that the rotation speed of the double gear 132 at the rear is gradually reduced.

[0044] It should be noted that, through the above-mentioned structural form, when the external counting mechanism 17 and the pumping mechanism 14 are connected to the driving of the adapted double gear 132, they can operate at a suitable speed.

[0045] Specifically, in this embodiment, the air pumping mechanism 14 is connected to the rotating shaft driving of one of the double gears 132. As the double gear 132 is driven by the input gear 131, the air pumping mechanism 14 will also be driven by the double gear 132 connected thereto and perform the air pumping action during the rotation of the rotor 12.

[0046] Similarly, the counting mechanism 17 is connected to another double gear 132. When the double gear 132 is driven to rotate, the toggle rod 172 of the counting mechanism 17 can rotate with it and count the counter 171 in the counting mechanism 17. When the counter 171 reaches the set count value, it can drive the gas storage mechanism 15 electrically connected thereto to open, and then release high-pressure air to the first jet mechanism 16 and the second jet mechanism 4 connected to the gas storage mechanism 15, and the high-pressure air can be used to blow and clean the outer surface of the stator 11 and the blade surface of the impeller 3.

[0047] It should be noted that in Figure 3 As shown, the air outlet of the air pumping mechanism 14 in the present embodiment is connected to an air storage mechanism 15 so as to store the air pumped out by the air pumping mechanism 14 in the state of high-pressure air, and the first jet mechanism 16 and the second jet mechanism 4 are connected to the air storage mechanism 15. When the air storage mechanism 15 is opened under the drive of the counting mechanism 17, the high-pressure air stored in the air storage mechanism 15 can be sprayed onto the outer surface of the stator 11 and the blades of the impeller 3 through the first jet mechanism 16, so as to clean the surfaces of the above two components.

[0048] In addition, as a preferred embodiment, the rotation speed of the double gear 132 connected to the pumping mechanism 14 in this solution is greater than the rotation speed of the double gear 132 connected to the pumping mechanism 14. It should be noted that the reason for this setting is that the installation space of the parking air conditioning motor 1 in the car is limited, that is, the pumping mechanism 14 in this solution can pump out limited air each time it works, and in order to ensure that the pressure of the air in the air storage mechanism 15 can reach a certain pressure value each time the air is jetted and cleaned, it is necessary to continuously pump gas into the air storage mechanism 15 through a large amount of work of the pumping mechanism 14 to increase the pressure of the air stored in the air storage mechanism 15. The threshold value of the triggering of the counting mechanism 17 is an adjustable mode. When the rotation speed of the double gear 132 connected to the counting mechanism 17 is low, it is only necessary to reduce the triggering threshold value. In addition, the counter 171 in the counting mechanism 17 is triggered by the toggle lever 172, and reducing the number of toggle times of the counter 171 can also better extend the service life of the counter 171.

[0049] In addition, it should be noted that the rotation speed of the parking air conditioner motor 1 is usually between 720 and 1440 revolutions. In this solution, in order to make the pumping frequency of the pumping mechanism 14 be in a reasonable range, that is, the amount of pumped gas and the amount of consumed gas can be balanced, the output speed of the double gear 132 connected to the pumping mechanism 14 in this solution is optimally between 1 / 6 and 1 / 10 of the rotation speed of the rotor 12.

[0050] As a further improvement of the above embodiment, in this solution, the pumping mechanism 14 adopts a plunger structure. Specifically, it includes a cylinder 141, in which a piston 142 is slidably mounted, and the piston 142 and the cylinder 141 form a chamber. Figure 6 As shown, two air passages 1421 are provided on the piston 142 and pass through along the axial direction of the piston 142, and two sealing sheets 143 are hinged on the inner side of the piston 142 facing the chamber, and the sealing sheets 143 cover the air passages 1421 to ensure that the piston 142 is in an open state when withdrawing from the chamber, so that the outside air can enter the chamber. When the piston 142 is pressed into the chamber, the sealing sheet 143 is in a state of closing the air passage 1421, so that the piston 142 can press the air into the air storage mechanism 15. It should be noted that, in order for the connected duplex gear 132 to drive the piston 142 to move in the cylinder 141, a pull rod 144 is hinged on the outer side of the piston 142 facing away from the chamber, and a crank 145 is hinged on the outer end of the pull rod 144 away from the piston 142. The crank 145 is fixedly connected to the rotating shaft of the corresponding duplex gear 132 and extends radially along the connected duplex gear 132. When the duplex gear 132 is driven to rotate, it can drive the crank 145 to rotate synchronously, and the outer end of the crank 145 then pulls the pull rod 144 to realize the reciprocating motion of the piston 142 in the cylinder 141. It should be noted that, Figure 6 As shown, an air outlet is provided on the end surface of the cylinder 141 away from the piston 142, and the air storage mechanism 15 is connected to the air outlet through a pipeline to achieve connection with the cylinder 141. In addition, it should be noted that in order to prevent the high-pressure air in the air storage mechanism 15 from backwashing into the cylinder 141 during the pumping process and affecting the opening and closing of the sealing sheet 143 on the piston 142, a one-way valve 146 is also installed on the air outlet of the cylinder 141. The one-way valve 146 is unidirectionally conducted from the cylinder 141 to the air storage mechanism 15, so as to prevent the high-pressure air in the air storage mechanism 15 from flowing back into the cylinder 141.

[0051] like Figure 3As shown, the gas storage mechanism 15 in this scheme mainly stores the pumped air in the gas tank 151, and then controls the discharge of the high-pressure air in the gas tank 151 through the solenoid valve 152. Specifically, the gas tank 151 is a high-pressure resistant steel cylinder, and the gas tank 151 has an air inlet channel and an air outlet channel. Among them, the air inlet channel is connected to the pumping mechanism 14 through a pipeline, and the solenoid valve 152 that controls its opening and closing state is installed on the air outlet channel. It should be noted that the solenoid valve 152 is electrically connected to the counting mechanism 17 in this scheme. When the counting mechanism 17 is triggered, an opening instruction is sent to the solenoid valve 152. At this time, the solenoid valve 152 is opened so that the high-pressure air in the gas tank 151 can enter the first jet mechanism 16 and the second jet mechanism 4 connected to the solenoid valve 152 in the form of high-pressure spray.

[0052] In addition, it should be noted that, although the speed of the double gear 132 connected to the pumping mechanism 14 is controlled within a reasonable speed range, the amount of air pumped into the gas storage mechanism 15 by the pumping mechanism 14 and the amount of air subsequently discharged can be in a balanced state. However, it should be noted that as the surrounding environment changes, the air pressure in the gas storage tank 151 will also change, especially the higher the temperature, the greater the pressure. For this reason, it is necessary to add a safety device to the gas storage tank 151 to ensure that the gas storage tank 151 will not burst due to excessive internal air pressure. Specifically, a relief valve 153 is also installed on the gas storage tank 151. When the pressure in the gas storage tank 151 is greater than the threshold value preset by the relief valve 153, the air in the gas storage tank 151 will be discharged by the relief valve 153 to ensure that the pressure value in the gas storage tank 151 is always within a safe value.

[0053] It should also be noted that the first jet mechanism 16 in this solution has a specific structure as follows: Figure 3 As shown, it includes a support frame 161 arranged around the outside of the stator 11, and a plurality of first nozzles 162 are arranged at equal intervals on the support frame 161. These first nozzles 162 are connected to the electromagnetic valve 152 of the gas storage mechanism 15 through a high-pressure hose. When the electromagnetic valve 152 is opened under the control of the counting mechanism 17, the first nozzle 162 can spray high-pressure gas to the surface of the stator 11 to blow away the dust accumulated on the surface of the stator 11, thereby cleaning the surface of the stator 11.

[0054] like Figure 5 , Figure 7As shown, the counting mechanism 17 includes a counter 171 installed on the graded reduction mechanism 13, and the counter 171 is a toggle counting device. At the same time, the rotating shaft of a double gear 132 of the graded reduction mechanism 13 extends out of the graded reduction mechanism 13 and is connected to a toggle rod 172 of the counting mechanism 17. It should be noted that the toggle rod 172 extends along the radial direction of the rotating shaft to ensure that the double gear 132 can drive the toggle rod 172 to sweep across a circular area when rotating. It should be noted that when the toggle rod 172 sweeps across the counter 171, the toggle counting of the counter 171 can be implemented, and when the counter 171 is toggled a specific number of times, the counter 171 is triggered to drive the solenoid valve 152 electrically connected thereto to open.

[0055] In addition, the present invention discloses a parking air conditioning motor 1 with a self-cleaning function, and also discloses an internal machine assembly installed with the parking air conditioning motor 1 of the present invention. Specifically, it includes a volute 2, and the parking air conditioning motor 1 is fixedly mounted on the volute 2. It should be noted that the dual output shafts 121 of the rotor 12 of the parking air conditioning motor 1 extend into the volute 2. Figure 1 As described above, the two impellers 3 installed in the volute 2 are coaxially connected with the rotor 12 of the parking air conditioner motor 1, so that the impeller 3 is driven to rotate by the rotation of the parking air conditioner motor 1, so as to realize the operation of drawing the external cooling or heating air into the vehicle. It should be noted that in the process of drawing the external air in through the impeller 3, the dust in the air will gradually accumulate on the blades of the impeller 3. For this reason, a second jet mechanism 4 is also installed on the volute 2. The second jet mechanism 4 is connected to the solenoid valve 152 of the air storage mechanism 15. When the solenoid valve 152 is controlled by the counting mechanism 17 and opened, the second jet mechanism 4 and the first jet mechanism 16 can simultaneously spray high-pressure air outward. Among them, the high-pressure air sprayed by the second jet mechanism 4 impacts the impeller 3 to blow off the dust on the impeller 3.

[0056] It should be noted that if Figure 1 As shown, the second jet mechanism 4 in this scheme is composed of a plurality of second nozzles 41. These second nozzles 41 are connected to the electromagnetic valve 152 through a conduit so as to be able to synchronously eject high-pressure gas outward. Preferably, in order to ensure the uniformity of cleaning, a plurality of second nozzles 41 are inserted into the volute 2 at equal intervals, and when designing the air outlet direction of the second nozzle 41, the second nozzle 41 and the gap formed by the adjacent blades in the impeller 3 can have the same inclination angle to ensure that the air ejected from the second nozzle 41 can smoothly enter the gap of the impeller 3, so as to improve the efficiency of the high-pressure air flowing through the two sides of the blade, and improve the effect of the high-pressure air cleaning the dust on the surface of the blade.

[0057] Finally, it should be noted that in the specific implementation process, the following issues should also be noted: if the transmission ratio of the graded reduction mechanism 13 is an integer, the position where the impeller 3 receives the jet cleaning will always be the same, which will greatly reduce the cleaning effect of the second jet mechanism 4 on the impeller 3.

[0058] Specifically, it can be assumed that the transmission ratio of the double gear 132 connected to the counting mechanism 17 in the stepped reduction mechanism 13 is 240. At this time, if the rotation speed of the rotor 12 is 1440rpm, then after being decelerated by the stepped reduction mechanism 13, the rotation speed of the toggle lever 172 will be 6rpm. At this time, if the threshold of the counter 171 is an integer multiple of 6, the solenoid valve 152 will open after an integer number of minutes. When the solenoid valve 152 is opened, the impeller 3 driven by the rotor 12 will be at the same position and come to the area where the second jet mechanism 4 acts, that is, the same position of the impeller 3 will always be impacted and cleaned by the high-pressure gas ejected from the second nozzle 41. Obviously, this cleaning effect is obviously not good.

[0059] To this end, this solution can adjust the gear ratio of the double gear 132 and the input gear 131 to make the transmission ratio of the stepped reduction mechanism 13 a non-integer, thereby ensuring that the gas ejected by the second jet mechanism 4 can act on different positions of the impeller 3.

[0060] Working principle: When the rotor 12 of the parking air conditioner motor 1 rotates, the assembly draws heated or cooled air to the outside. In the process again, the air passes through the outer surface of the stator 11 and the impeller 3, and the dust remaining in the air adheres to the surface of the impeller 3. At this time, due to the existence of the graded reduction mechanism 13, as the rotor 12 rotates, the graded reduction mechanism 13 also operates synchronously, and then outputs the decelerated speed to the outside. The decelerated speed is output to the pumping mechanism 14 and the counting mechanism 17 connected thereto through different double gears 132, thereby driving the pumping mechanism 14 to realize the pumping action, and the counting mechanism 17 to realize the dialing count. During this period, after the pumping mechanism 14 continuously pumps air into the air storage mechanism 15, the air pressure in the air storage mechanism 15 rises, and the counting mechanism 17 performs rotation counting. When the number of times counted by the counting mechanism 17 reaches the set threshold, the counting mechanism 17 sends a driving signal to the solenoid valve 152 in the gas storage mechanism 15, and the solenoid valve 152 opens immediately, and the high-pressure gas stored in the gas storage mechanism 15 is released into the first jet mechanism 16 and the second jet mechanism 4, and the surface of the stator 11 and the impeller 3 will be impacted by the high-pressure air, and the surfaces of the two can be cleaned by the high-pressure air.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A parking air conditioning motor (1) with a periodic self-cleaning function, characterized in that: include stator (11); A rotor (12) is rotatably disposed in the stator (11) and has two output shafts (121) extending coaxially in both directions; The stepped speed reduction mechanism (13) comprises an input gear (131) and at least two duplex gears (132), wherein the input gear (131) is coaxially connected to one of the output shafts (121) and is in speed reduction meshing engagement with one of the duplex gears (132), and the at least two duplex gears (132) are in speed reduction connection engagement in the form of alternating meshing of large and small gears; The air pump mechanism (14) is drivingly connected to one of the double gears (132) so as to be driven by the rotating double gear (132); An air storage mechanism (15) is connected to the air pump mechanism (14) and stores the air delivered by the air pump mechanism (14) in a high-pressure state; A first air injection mechanism (16) is arranged outside the stator (11) and is connected to the air storage mechanism (15); A counting mechanism (17) is drivingly connected to one of the double gears (132) not connected to the air pump mechanism (14), and is driven by the double gear (132) connected thereto to perform periodic rotation counting, wherein the counting mechanism (17) is electrically connected to the air storage mechanism (15) so as to control the air storage mechanism (15) to open and deliver high-pressure air to the air injection mechanism after the count value reaches a preset value; The air pump mechanism (14) comprises a cylinder body (141), the cylinder body (141) having an air outlet connected to the air storage mechanism (15), a piston (142) being slidably arranged in the cylinder body (141) to form a chamber, an air passage (1421) being axially penetrating the piston (142), a sealing sheet (143) being hingedly connected to the surface of the piston in the chamber and capable of only being turned inwards, the sealing sheet (143) being sealed on the air passage (1421), and the surface of the piston facing away from the chamber An upper hinged pull rod (144) is hingedly connected to a crank (145) at one end of the pull rod (144) away from the piston (142), and one end of the crank (145) is fixedly connected to the rotating shaft of the corresponding double gear (132), and the double gear (132) is rotated to drive the piston (142) to reciprocate in the cylinder body (141); a one-way valve (146) is provided on the air outlet of the cylinder body (141) for unidirectional conduction from the cylinder body (141) to the air storage mechanism (15).

2. A parking air conditioning motor (1) with a periodic self-cleaning function as claimed in claim 1, characterized in that: The gas storage mechanism (15) comprises a gas storage tank (151), the gas storage tank (151) is provided with an air inlet channel and an air outlet channel, the air inlet channel is connected to the gas pump mechanism (14) through a pipeline, the air outlet channel is provided with a solenoid valve (152), the solenoid valve (152) is electrically connected to the counting mechanism (17) so as to be opened and closed under the control of the counting mechanism (17), and the first jet mechanism (16) is connected to the solenoid valve (152).

3. A parking air conditioning motor (1) with a periodic self-cleaning function as claimed in claim 2, characterized in that: The gas storage tank (151) is also provided with a relief valve (153).

4. A parking air conditioning motor (1) with a periodic self-cleaning function as claimed in claim 2, characterized in that: The first jet mechanism (16) comprises a support frame (161), the support frame (161) is arranged in a ring outside the stator (11), a plurality of first nozzles (162) are arranged at equal intervals on the support frame (161), and the first nozzles (162) are connected to the solenoid valve (152) through a pipeline.

5. A parking air conditioning motor (1) with a periodic self-cleaning function as claimed in claim 2, characterized in that: The counting mechanism (17) comprises a toggle lever (172) connected to the rotating shaft of the corresponding double gear (132), and also comprises a counter (171). The double gear (132) drives the toggle lever (172) to rotate so as to periodically toggle a counting switch of the counter (171). The counter (171) is electrically connected to the solenoid valve (152).

6. An internal unit assembly, comprising a volute (2), wherein the parking air conditioner motor (1) as claimed in any one of claims 1 to 5 is installed in the volute (2), and an impeller (3) is also arranged in the volute (2), and the impeller (3) is drivingly connected to the parking air conditioner motor (1); and further comprising a second jet mechanism (4), wherein the second jet mechanism (4) is installed on the volute (2) and is connected to an air storage mechanism (15) so as to intermittently spray high-pressure air to the rotating blades of the impeller (3).

7. An internal machine assembly according to claim 6, characterized in that: The second jet mechanism (4) comprises a plurality of second nozzles (41), the second nozzles (41) being inserted into the volute (2) and arranged along the axial direction of the impeller (3), the second nozzles (41) being arranged to be inclined in the direction of the impeller (3) so as to be able to cut and blow high-pressure air into the gaps between the blades of the impeller (3).

8. An internal machine assembly according to claim 7, characterized in that: The transmission ratio of the stepped speed reduction mechanism (13) is a non-integer ratio.

Images