Double-insulation direct-current brushless motor pump of high-pressure cleaning machine

Abstract

The utility model relates to the technical field of brushless motor pumps, and discloses a double-insulation direct-current brushless motor pump of a high-pressure cleaning machine, which comprises a motor mechanism and a pump body mechanism, a motor shell is used as a main body structure of a motor, provides mechanical support and protects internal elements, and the pump body mechanism is used as a main body structure of the motor. Insulating paint is sprayed on the surface to enhance electrical safety, and the radiating fins are arranged on the outer ring of the motor shell to help to radiate heat generated in the operation process of the motor, so that the operation efficiency of the motor is kept. According to the double-insulation direct-current brushless motor pump of the high-pressure cleaning machine, the double-insulation technology is adopted, the surface of the motor shell is sprayed with insulation paint, and extra insulation layers are additionally arranged between electrical components in the motor, so that the possibility that the electrical components are in contact with a user is effectively isolated, and the risk of electric shock is greatly reduced; due to the design, the equipment is safer when being used in a humid environment, and is particularly suitable for equipment such as a high-pressure cleaning machine which is often operated in a watery environment.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motor pumps, and particularly relates to a double-insulated DC brushless motor pump for a high-pressure cleaner. Background Technique

[0002] A high-pressure cleaner is a device that uses high-pressure water flow for cleaning, and is widely used in the cleaning work of buildings, roads, vehicles, and industrial equipment. These machines compress the water flow through a high-pressure pump and spray it at high speed through a nozzle to effectively remove surface dirt, oil stains, and other stubborn pollutants. The efficiency and cleaning effect of the high-pressure cleaner directly depend on the performance of the pump used.

[0003] Traditional high-pressure cleaners mostly use brushed motors. Although such motors have a low cost, they have problems such as frequent maintenance, high noise, short lifespan, and low efficiency. With the progress of technology, DC brushless motors have gradually replaced brushed motors as the preferred power source for high-pressure cleaners due to their superior performance, such as higher efficiency, longer operating lifespan, and lower maintenance requirements. In addition, operational safety is also a key consideration factor, especially in scenarios where electric equipment is used in wet or water environments. For this reason, double-insulation technology has been introduced to increase the safety of the equipment. This technology ensures that the equipment can still operate safely even if one layer of insulation fails by adding insulation layers between various components of the motor, greatly reducing safety accidents caused by electrical faults. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] The purpose of the utility model is to provide a double-insulated DC brushless motor pump for a high-pressure cleaner to solve the problems of short lifespan and low efficiency of the motor pump of traditional high-pressure cleaners mentioned in the above background technique.

[0006] (II) Technical Solutions

[0007] To achieve the above purpose, the utility model provides the following technical solutions: A double-insulated DC brushless motor pump for a high-pressure cleaner, which includes a motor mechanism and a pump body mechanism. The pump body mechanism is arranged at the front end of the motor mechanism. The motor mechanism includes a motor housing. The surface of the motor housing is sprayed with insulating paint. An installation bracket is arranged at the bottom end of the motor housing. Heat dissipation fins are arranged on the outer circle of the motor housing. A power management unit is arranged at the left end of the motor housing. The motor housing serves as the main structure of the motor, providing mechanical support and protecting internal components. The surface is sprayed with insulating paint to enhance electrical safety. The heat dissipation fins are arranged on the outer circle of the motor housing to help dissipate the heat generated during the operation of the motor and maintain the operating efficiency of the motor.

[0008] Preferably, a power interface is provided at the rear end of the power management unit, and a rotor shaft is provided at the center inside the motor housing. The rotor shaft is installed at the center inside the motor housing and is responsible for converting the rotational force generated by the motor into mechanical power.

[0009] Preferably, a rotor core is provided on the outer ring of the rotor shaft, and a stator core is provided on the outer ring of the rotor core. The rotor core and the stator core interact with each other to generate rotational power through magnetic force.

[0010] Preferably, an insulating layer is provided between the stator core and the motor housing, and a transmission rod is provided at the front end of the rotor shaft. The insulating layer is provided between the stator core and the motor housing to prevent electrical faults and ensure operation safety.

[0011] Preferably, a bearing is provided at the front end of the rotor shaft, and a sealing ring is provided on the outer ring of the bearing. The bearing is installed at the front end of the rotor shaft to reduce friction during movement and ensure the smooth operation of the rotor shaft.

[0012] Preferably, the pump body mechanism includes a pump head housing. The pump head housing is provided at the front end of the motor housing, and flanges are provided on the left and right sides of the pump head housing. The flanges are installed on both sides of the pump head housing and are used to connect the pump body to other pipelines or equipment.

[0013] Preferably, a water outlet valve is provided at the left end of the pump head housing, a water inlet valve is provided at the right end of the pump head housing, and an impeller is provided at the front end of the transmission rod.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The double-insulated DC brushless motor pump of this high-pressure cleaner adopts double-insulated technology. The surface of the motor housing is sprayed with insulating paint and additional insulating layers are added between the electrical components inside the motor, effectively isolating the possibility of contact between electrical components and users, greatly reducing the risk of electric shock. This design makes the equipment safer to use in a humid environment, especially suitable for equipment such as high-pressure cleaners that are often operated in a multi-water environment;

[0016] 2. The double-insulated DC brushless motor pump of this high-pressure cleaner, the heat dissipation fins assembled on the periphery of the motor housing and the optimized internal air flow design together improve the heat dissipation efficiency of the motor during long-term operation. The good heat dissipation performance not only protects the motor from overheating damage and extends its service life, but also ensures that the motor maintains stable performance under high load, improving the working efficiency and reliability of the whole machine;

[0017] 3. The double-insulated DC brushless motor pump of this high-pressure cleaner is directly connected to the transmission rod of the pump head through the rotor shaft, and the power of the motor can be directly and efficiently transmitted to the pump impeller. This direct drive method reduces the energy loss during power transmission, improves the energy efficiency ratio of the whole machine. At the same time, the simplified mechanical structure also reduces the weight and manufacturing cost of the equipment, and is easy to maintain and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the brushless motor pump of the present utility model;

[0019] Figure 2 is a sectional structural schematic diagram of the brushless motor pump of the present utility model;

[0020] Figure 3 is of the present utility model Figure 1 an enlarged view of A therein;

[0021] Figure 4 is of the present utility model Figure 2 an enlarged view of B therein.

[0022] In the figures: 1. Motor mechanism; 101. Motor housing; 102. Mounting bracket; 103. Heat dissipation fins; 104. Power management unit; 105. Power interface; 106. Rotor shaft; 107. Rotor core; 108. Stator core; 109. Insulation layer; 110. Transmission rod; 111. Bearing; 112. Sealing ring; 2. Pump body mechanism; 201. Pump head housing; 202. Flange; 203. Outlet valve; 204. Inlet valve; 205. Impeller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4, the present utility model provides a technical solution: a double-insulated DC brushless motor pump for a high-pressure cleaner. This double-insulated DC brushless motor pump for a high-pressure cleaner includes a motor mechanism 1 and a pump body mechanism 2. The pump body mechanism 2 is arranged at the front end of the motor mechanism 1. The motor mechanism 1 includes a motor housing 101, the surface of the motor housing 101 is sprayed with insulating paint, an installation bracket 102 is arranged at the bottom end of the motor housing 101, heat dissipation fins 103 are arranged on the outer circle of the motor housing 101, a power management unit 104 is arranged at the left end of the motor housing 101. The core of the motor mechanism 1 is the motor housing 101, and the surface of this housing is sprayed with insulating paint to enhance electrical safety. The bottom end of the motor housing 101 is equipped with an installation bracket 102, which not only provides stability but also helps in installing on the cleaner frame. Heat dissipation fins 103 are installed on the periphery of the motor housing 101, and these fins help dissipate the heat generated by the motor during operation, maintaining the efficiency and safety of the motor operation. The power management unit 104 is integrated at the left end of the motor housing 101, responsible for controlling the power supply of the motor and adjusting the motor operation parameters to adapt to different working requirements.

[0025] A power interface 105 is arranged at the rear end of the power management unit 104. A rotor shaft 106 is arranged at the central position inside the motor housing 101. A rotor core 107 is arranged on the outer circle of the rotor shaft 106. A stator core 108 is arranged on the outer circle of the rotor core 107. An insulating layer 109 is arranged between the stator core 108 and the motor housing 101. A transmission rod 110 is arranged at the front end of the rotor shaft 106. The rear end of the power management unit 104 is connected with a power interface 105, which is convenient for connecting with an external power system. Inside the motor housing 101, a rotor shaft 106 is arranged at the central position. A rotor core 107 is fixedly installed on the outer circle of the rotor shaft 106. This core interacts with the stator core 108 to generate rotational power. The stator core 108 is fixed inside the motor housing 101, and an insulating layer 109 is arranged between the two to ensure electrical safety and isolation. The front end of the rotor shaft 106 is connected with a transmission rod 110, and this transmission rod directly transmits the rotational power of the motor to the pump body mechanism 2.

[0026] A bearing 111 is provided at the front end of the rotor shaft 106, and a sealing ring 112 is provided on the outer ring of the bearing 111. The pump body mechanism 2 includes a pump head housing 201. The pump head housing 201 is provided at the front end of the motor housing 101. Flanges 202 are provided on the left and right sides of the pump head housing 201. A water outlet valve 203 is provided at the left end of the pump head housing 201, and a water inlet valve 204 is provided at the right end of the pump head housing 201. The pump body mechanism 2 is located at the front end of the motor mechanism 1 and is mainly composed of the pump head housing 201. Flanges 202 are provided on the left and right sides of the pump head housing 201 for connecting the pump head housing to other parts of the cleaning machine. An impeller is installed inside the pump head housing 201. The impeller is connected to the power of the motor through a transmission rod 110. A water outlet valve 203 is provided at the left end of the pump head housing 201 to control the spraying of cleaning water; a water inlet valve 204 is provided at the right end to control the introduction of water source. During operation, the motor starts, and a rotational force is generated through the interaction between the rotor core 107 and the stator core 108. This rotational force is transmitted to the impeller 205 of the pump head through the rotor shaft 106 and the transmission rod 110. The impeller 205 pushes the water flow and sucks in water through the water inlet valve 204.

[0027] Working principle: The core of the motor mechanism 1 is the motor housing 101. The surface of this housing is sprayed with insulating paint to enhance electrical safety. At the bottom end of the motor housing 101, there is an installation bracket 102, which not only provides stability but also helps with installation on the cleaning machine frame. Around the motor housing 101, there are heat dissipation fins 103. These fins help dissipate the heat generated by the motor during operation, maintaining the efficiency and safety of the motor operation. On the left end of the motor housing 101, a power management unit 104 is integrated, which is responsible for controlling the power supply of the motor and adjusting the motor operation parameters to adapt to different working requirements. At the rear end of the power management unit 104, there is a power interface 105, which is convenient for connection to an external power system. Inside the motor housing 101, at the central position, there is a rotor shaft 106. On the outer circle of the rotor shaft 106, a rotor core 107 is fixedly installed. This core interacts with the stator core 108 to generate rotational power. The stator core 108 is fixed inside the motor housing 101, and there is an insulating layer 109 between them to ensure electrical safety and isolation. At the front end of the rotor shaft 106, there is a transmission rod 110, which directly transmits the rotational power of the motor to the pump body mechanism 2. At the front end of the rotor shaft 106, a bearing 111 is also installed. There is a sealing ring 112 on the outer circle of the bearing 111. These components ensure the smoothness and sealing performance of the rotor shaft during rotation, preventing water and dust from entering the interior of the motor. The pump body mechanism 2 is located at the front end of the motor mechanism 1 and is mainly composed of a pump head housing 201. On the left and right sides of the pump head housing 201, there are flanges 202 for connecting the pump head housing to other parts of the cleaning machine structure. Inside the pump head housing 201, there is an impeller 205, and the impeller 205 is connected to the power of the motor through the transmission rod 110. At the left end of the pump head housing 201, there is a water outlet valve 203 for controlling the spraying of cleaning water; at the right end, there is a water inlet valve 204 for controlling the introduction of water source. During operation, the motor starts, generates a rotational force through the interaction between the rotor core 107 and the stator core 108. This rotational force is transmitted to the impeller of the pump head through the rotor shaft 106 and the transmission rod 110. The impeller 205 pushes the water flow, sucks in water through the water inlet valve 204, and then sprays it out in a high-pressure form through the water outlet valve 203 to complete the cleaning work.

[0028] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than a limitation on the protection scope of the present invention. Any simple modification or equivalent replacement of the technical solution of the present invention by those of ordinary skill in the art shall not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A high-pressure cleaning machine double-insulated DC brushless motor pump, the high-pressure cleaning machine double-insulated DC brushless motor pump comprising a motor mechanism (1) and a pump body mechanism (2), characterized in that: A pump body mechanism (2) is arranged at the front end of the motor mechanism (1), the motor mechanism (1) comprises a motor housing (101), the surface of the motor housing (101) is sprayed with insulating paint, a mounting bracket (102) is arranged at the bottom end of the motor housing (101), a heat dissipation fin (103) is arranged on the outer ring of the motor housing (101), and a power management unit (104) is arranged at the left end of the motor housing (101).

2. A double-insulated brushless DC motor pump for a high-pressure cleaning machine according to claim 1, characterized in that: A power interface (105) is provided at the rear end of the power management unit (104), and a rotor shaft (106) is provided at the inner center position of the motor housing (101).

3. A double-insulated DC brushless motor pump for a high-pressure cleaning machine according to claim 2, characterized in that: The outer ring of the rotor shaft (106) is provided with a rotor iron core (107), and the outer ring of the rotor iron core (107) is provided with a stator iron core (108).

4. A double-insulated DC brushless motor pump for a high-pressure cleaning machine according to claim 3, characterized in that: An insulating layer (109) is provided between the stator core (108) and the motor housing (101), and a transmission rod (110) is provided at the front end of the rotor shaft (106).

5. A double-insulated DC brushless motor pump for a high-pressure cleaning machine according to claim 2, characterized in that: A bearing (111) is provided at the front end of the rotor shaft (106), and a sealing ring (112) is provided on the outer ring of the bearing (111).

6. A high pressure cleaning machine double insulation DC brushless motor pump according to claim 1, characterized in that: The pump body mechanism (2) comprises a pump head housing (201), the front end of the motor housing (101) is provided with a pump head housing (201), and flanges (202) are provided on the left and right sides of the pump head housing (201).

7. A double-insulated DC brushless motor pump for a high-pressure cleaning machine according to claim 6, characterized in that: A water outlet valve (203) is disposed at the left end of the pump head housing (201), a water inlet valve (204) is disposed at the right end of the pump head housing (201), and an impeller (205) is disposed at the front end of the transmission rod (110).

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