CN104362799A

CN104362799A - Adjustable-speed motor for pump

Info

Publication number: CN104362799A
Application number: CN201410744419.8A
Authority: CN
Inventors: 程夏林
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-09
Filing date: 2014-12-09
Publication date: 2015-02-18

Abstract

The invention discloses an adjustable-speed motor for a pump. The adjustable-speed motor comprises a machine shell, a stator, a rear cover, a rotating shaft, a rotor, a heat dissipating plate and an electronic module, wherein the left end of the rotating shaft is rotatably supported on the machine shell, the right end of the rotating shaft is rotatably supported on the rear cover, the left end of the rotating shaft stretches out of the machine shell, the rotor is fixedly arranged on the rotating shaft, the heat dissipating plate is fixed on the rear cover and is in sealing connection with the rear cover by a sealing part, the electronic module is fixed on the heat dissipating plate, the inner side of the rear cover is provided with a spacer sleeve integrated with the rear cover, the front end of the spacer sleeve is inserted in the machine shell and is in sealing connection with the machine shell by a sealing ring, a central through hole is formed in the rotating shaft, a machine shell fluid through hole is formed in the machine shell, a rear cover fluid through hole is formed in the rear cover, and a gap used as a heat exchange fluid cavity is formed between the heat dissipating plate and the rear cover. The working temperature of the electronic devices is greatly reduced, the stability of the motor is improved and the service life of the motor is prolonged.

Description

Pump buncher

Technical field

The present invention relates to a kind of pump buncher, belong to field of motor manufacturing.

Background technology

The power supply of pump buncher and speed governing need electronic module to perform, and electronic module can produce heat in the course of the work, thus cause the working temperature of electronic devices and components on electronic module to raise, some electronic devices and components can damage because working temperature is too high, this just needs to lower the temperature to electronic module, the heat radiation of this type of pump buncher at present adopts fan cooled more, radiating effect is not good, particularly when ambient temperature is higher, air cannot effective cooling to feeding electric motors and the electronic module carrying out speed regulating control, make electronic devices and components temperature too high and damage.

Summary of the invention

The object of this invention is to provide a kind of pump buncher that greatly can reduce electronic devices and components working temperature.

The technical scheme realizing the object of the invention is: a kind of pump buncher, comprise casing, stator, bonnet, rotating shaft, rotor, heating panel and electronic module, the left end of rotating shaft can be rotated to support on casing, the right-hand member of rotating shaft can be rotated to support on bonnet, and the left end of rotating shaft stretches out casing, rotor is fixedly mounted in rotating shaft, heating panel is fixed on bonnet, and realize being tightly connected by seal and bonnet, electronic module is fixed on heating panel, there is inside bonnet all-in-one-piece separation sleeve processed with it, casing is inserted in the front end of separation sleeve, and realize being tightly connected by sealing ring and casing, rotating shaft has central through hole, casing has casing fluid passing hole, bonnet has bonnet fluid passing hole, there is between heating panel and bonnet the gap as heat exchange flow body cavity.

Optimally, electronic module welds or is bonded on heating panel.

Optimally, bonnet is made of plastics.

After have employed technique scheme, the ingenious height pressure reduction utilizing pump leaf of the present invention, by having central through hole in rotating shaft, casing to be started shooting shell fluid passing hole, bonnet is opened bonnet fluid passing hole, and between heating panel and bonnet, be provided as the gap of heat exchange flow body cavity, the medium that pump is transmitted circulates at motor internal, take away the heat that electronic module produces, greatly reduce the working temperature of electronic devices and components, enhance stability and the useful life of motor, and make to use the electronic devices and components of lower temperature grade to become possibility in a large number, reduce the cost of complete machine.Simultaneously owing to not having additional fan, the volume weight of complete machine also obviously reduces, and is conducive to cost and lowers, and have the occasion of requirement to use, as automobile industry at volume weight.

accompanying drawing explanation

Fig. 1 is the sectional structure schematic diagram of pump buncher of the present invention.

In figure, 1, pump leaf, 2, casing, 3, stator, 4, separation sleeve, 5, bonnet, 6, seal, 7, heating panel, 8, electronic module, 9, bearing, 10, central through hole, 11, heat exchange flow body cavity, 12, bonnet fluid passing hole, 13, rotor, 14, sealing ring, 15, casing fluid passing hole, 16, rotating shaft, 17, area of low pressure, 18, high-pressure area.

Embodiment

In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation

As shown in Figure 1, a kind of pump buncher, comprise casing 2, stator 3, bonnet 5, rotating shaft 16, rotor 13, heating panel 7 and electronic module 8, the left end of rotating shaft 16 can be rotated to support on casing 2 by bearing 9, the right-hand member of rotating shaft 16 can be rotated to support on bonnet 5 by bearing 9, and the left end of rotating shaft 16 stretches out casing 2, the part of stretching out casing 2 may be used for cover armored pump leaf 1, rotor 13 is fixedly mounted in rotating shaft 16, heating panel 7 is fixed on bonnet 5, and realize being tightly connected by seal 6 and bonnet 5, electronic module 8 is fixed on heating panel 7, there is inside bonnet 5 all-in-one-piece separation sleeve 4 processed with it, casing 2 is inserted in the front end of separation sleeve 4, and realize being tightly connected by sealing ring 14 and casing 2, rotating shaft 16 has central through hole 10, casing 2 has casing fluid passing hole 15, bonnet 5 has bonnet fluid passing hole 12, there is between heating panel 7 and bonnet 5 gap as heat exchange flow body cavity 11.

Electronic module 8 welds or is bonded on heating panel 7.The heat on electronic module is conducive to be delivered to rapidly heating panel 7.

Bonnet 5 is made of plastics.Also can be made up of other nonmetallic materials, can manufacturing cost be reduced.

Operation principle of the present invention is as follows:

As shown in Figure 1, the area of low pressure 17 of high-pressure area 18 and correspondence is formed when pump leaf 1 rotates, fluid is under the driving of pressure reduction, along the hole 15 of casing and the air gap between rotor 13 and stator 3, through bonnet fluid passing hole 12, flow into heat exchange flow body cavity 11, then warp beam central through hole 10, flow into area of low pressure 17, form the circulation of fluid.Heat on heating panel 7 is taken away when flowing to heat exchange flow body cavity 11 by fluid, is also taken away by the heat on electronic module 8 simultaneously, thus greatly reduces the working temperature of electronic devices and components on electronic module 8.

Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a pump buncher, comprise casing (2), stator (3), bonnet (5), rotating shaft (16), rotor (13), heating panel (7) and electronic module (8), the left end of rotating shaft (16) can be rotated to support on casing (2), the right-hand member of rotating shaft (16) can be rotated to support on bonnet (5), and the left end of rotating shaft (16) stretches out casing (2), rotor (13) is fixedly mounted in rotating shaft (16), heating panel (7) is fixed on bonnet (5), and realize being tightly connected by seal (6) and bonnet (5), electronic module (8) is fixed on heating panel (7), it is characterized in that: bonnet (5) inner side has all-in-one-piece separation sleeve (4) processed with it, casing (2) is inserted in the front end of separation sleeve (4), and realize being tightly connected by sealing ring (14) and casing (2), rotating shaft (16) has central through hole (10), casing (2) has casing fluid passing hole (15), bonnet (5) has bonnet fluid passing hole (12), there is between heating panel (7) and bonnet (5) gap as heat exchange flow body cavity (11).

2. a kind of pump buncher according to claim 1, is characterized in that: electronic module (8) welds or is bonded on heating panel (7).

3. a kind of pump buncher according to claim 1 and 2, is characterized in that: bonnet (5) is made of plastics.