CN210007526U

CN210007526U - Motor heat dissipation shell of water-cooled water pumps

Info

Publication number: CN210007526U
Application number: CN201921312735.2U
Authority: CN
Inventors: 张正良
Original assignee: Guangzhou Bailitong Electric Machinery Co Ltd
Current assignee: Guangzhou Bailitong Electric Machinery Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-01-31
Anticipated expiration: 2029-08-14

Abstract

motor heat dissipation shell of water-cooled water pump, including pump cover, shell body, well lid assembly and hou gai assembly, wherein, shell body's both ends outer lane is equipped with at least three screw respectively, the pump cover passes through the bolt fastening at shell body's preceding tip, well lid assembly corresponds the screw position and is equipped with the through-hole that runs through, the back lid assembly passes through the through-hole in proper order through the bolt, the screw is fixed at shell body's rear end portion, the shell body outside is equipped with a plurality of rings of annular heat dissipation arch.

Description

Motor heat dissipation shell of water-cooled water pumps

Technical Field

The utility model relates to a water-cooled water pump field, especially kinds of water-cooled water pump's motor heat dissipation shell.

Background

The automobile water pump is a device used for conveying engine coolant on an automobile, and can be divided into a mechanical water pump and an electric water pump according to a driving mode, and the electric water pump can be divided into a brushed electric water pump and a brushless electric water pump according to whether a carbon brush exists or not. The mechanical water pump is driven by the engine, the rotating speed of the water pump and the rotating speed of the engine form a fixed ratio, the heat dissipation requirement under the low-speed and high-load working condition cannot be met, and the cooling requirements of parts such as a main drive motor of a new energy automobile and the water supply requirement on a motor home cannot be met when the engine stops working; the brushed electric water pump has poor electromagnetic interference resistance, the carbon brush is easy to generate electric sparks to interfere other electronic devices, and meanwhile, due to the abrasion influence of the reversing carbon brush, the brushed electric water pump is short in service life and not suitable for new energy automobiles. Therefore, the direct current brushless motor water pump will be more and more applied to high-end automobiles, new energy automobiles and motor homes.

When a water-cooled water pump in a brushless direct current motor works, the rotating speed is high, especially under the condition of high-power output, a large amount of heat can be generated, and at present, good solutions do not exist for heat dissipation on the water-cooled water pump.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages of the prior art, the present invention provides a heat dissipation casing for motor of water-cooled water pumps.

The utility model provides a motor heat dissipation shell of kinds of water-cooled water pump, including pump cover, shell body, well lid assembly and hou gai assembly, wherein, the both ends outer lane of shell body is equipped with at least three screw respectively, the pump cover passes through the bolt fastening at shell body's preceding tip, well lid assembly corresponds the screw position and is equipped with the through-hole that runs through, the back lid assembly passes through the through-hole in proper order through the bolt, the screw is fixed at shell body's rear end portion, the shell body outside is equipped with a plurality of rings of annular heat dissipation arch.

According to the improvement of the utility model in , a stator assembly is arranged in the shell body, the outer wall of the stator assembly is attached to the inner wall of the shell body, and the attaching position corresponds to the annular heat dissipation protruding position on the outer surface of the shell body.

As an improvement of the utility model in steps, a rotor assembly is arranged in the stator assembly, an isolation sleeve made of high-temperature-resistant plastics is arranged between the stator assembly and the rotor assembly, the front end of the isolation sleeve is matched and connected with the inner side step of the front end part of the shell body, the rear end of the isolation sleeve is connected with the concave platform of the front end part of the middle cover assembly, and two connection parts are respectively provided with an O-shaped sealing ring.

Compared with the prior art, the beneficial effects of the utility model are that: the heat dissipation efficiency of the water-cooled water pump is improved, and the waterproof performance of the water-cooled water pump shell is enhanced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will now be described with reference to the accompanying drawings, which are illustrative and exemplary in nature, in :

referring to fig. 1, motor heat dissipation housings of water-cooled water pumps comprise a pump cover 1, a housing body 2, a middle cover assembly 3 and a rear cover assembly 4, wherein at least three screw holes 21 are respectively arranged on the outer rings of the two end portions of the housing body 2, the pump cover 1 is fixed on the front end portion of the housing body 2 through bolts, through holes 31 are arranged at positions of the middle cover assembly 3 corresponding to the screw holes, the rear cover assembly 4 sequentially penetrates through the through holes and the screw holes and is fixed on the rear end portion of the housing body 2 through bolts, an annular protrusion 32 is arranged at the front end of the middle cover assembly 3, the outer wall of the annular protrusion 32 is attached to the inner wall of the rear end portion of the housing body 2, a groove 33 is arranged on the outer wall of the annular protrusion 32, and a sealing ring is arranged in the groove 33 and can prevent water from entering from a gap between the middle cover assembly and the housing body, thereby ensuring the sealing and the waterproof performance.

The outer side of the shell body 2 is provided with a plurality of rings of annular heat dissipation protrusions 22, and the annular heat dissipation protrusions increase the surface area of the shell body and improve the heat dissipation efficiency. The outer surface of the rear cover assembly is provided with the same second annular heat dissipation bulge 41, the heat energy of the shell body and the heat energy generated by the driving circuit board on the middle cover assembly can be conducted through the joints of all the parts, and the second annular heat dissipation bulge also plays a role in heat dissipation.

Be equipped with stator assembly 5 in the housing body 2, the outer wall of stator assembly 5 and the inner wall laminating of housing body 2, laminating department corresponds the annular heat dissipation arch 22 position of housing body 2 surface. The heat energy that the stator assembly produced at the during operation can directly be through the annular heat dissipation arch of shell body direct heat conduction to the surface, improves radiating efficiency.

Referring to fig. 2, a rotor assembly is arranged in the stator assembly 5, an isolation sleeve 6 made of high-temperature-resistant plastic is arranged between the stator assembly 5 and the rotor assembly, the front end of the isolation sleeve 6 is matched and connected with an inner side step of the front end portion of the shell body 2, the rear end of the isolation sleeve 6 is connected with a concave table of the front end portion of the middle cover assembly 3, and O-shaped sealing rings are arranged at the two connecting positions, specifically, two steps are arranged on the inner side of the front end portion of the shell body 2, and an inward step is attached to the front end of the isolation sleeve 6, so that second annular groove bodies 23 are formed on the inner side surface of the outward step and the outer side surface of the isolation sleeve 6, a O-shaped sealing ring is arranged in the second annular groove body 23, similarly, the front end portion of the middle cover assembly 3 is provided with a concave table, the rear end of the isolation sleeve 6 is placed in the concave table, the inner side of the isolation sleeve 6 and the outer side of the concave table form a second annular groove body 34, a second O-shaped sealing ring is arranged in the second O-shaped groove body 34, and the two grooves.

In conclusion, after the ordinary skilled in the art reads the document of the present invention, according to the present invention, the technical solution and technical concept of the present invention do not need creative mental labor to make other various corresponding transformation schemes, which all belong to the protection scope of the present invention.

Claims

The motor heat dissipation shell of the water-cooled water pump of 1 and types comprises a pump cover, a shell body, a middle cover assembly and a rear cover assembly and is characterized in that at least three screw holes are formed in outer rings of two end portions of the shell body respectively, the pump cover is fixed to the front end portion of the shell body through bolts, a through hole penetrating through the middle cover assembly is formed in the position, corresponding to the screw holes, of the middle cover assembly, the rear cover assembly sequentially penetrates through the through hole and the screw holes through bolts and is fixed to the rear end portion of the shell body, and a plurality of rings of annular heat dissipation protrusions are.
2. The heat dissipation casing for the motor of kinds of water-cooled water pumps according to claim 1, wherein the casing body has a stator assembly disposed therein, the outer wall of the stator assembly is attached to the inner wall of the casing body, and the attachment position corresponds to the heat dissipation protrusion position outside the casing body.
3. The kind of motor heat dissipation casings of water-cooled water pumps of claim 2, wherein the stator assembly is equipped with the rotor assembly, there is a spacer sleeve made of high temperature resistant plastics between the stator assembly and the rotor assembly, the front end of the spacer sleeve is engaged with the inside step of the front end of the housing body, the rear end of the spacer sleeve is engaged with the concave platform of the front end of the middle cover assembly, and both engagement parts are equipped with O-ring seals.