CN217904170U - Water-cooled permanent magnet synchronous motor - Google Patents

Abstract

The utility model relates to a field of PMSM technique, especially, relate to a water-cooled PMSM, which comprises a motor body, motor body includes the casing, the end cover, the apparatus further comprises a rotating shaft, rotor and stator, the end cover is connected in the tip of casing, the end cover is equipped with one respectively at the both ends of casing, the pivot is connected between two end covers, the rotor is connected in the pivot, the stator is connected in the casing, the rotor is located the stator inside and with the coaxial setting of stator, the mounting groove has been seted up on the casing, the length direction setting of casing is followed to the mounting groove, the circumference setting of casing is followed to the mounting groove, the mounting hole has been seted up to the tank bottom of mounting groove, the mounting hole runs through the casing, the mounting hole is a plurality of in the tank bottom of mounting groove has evenly arranged, be connected with the heat-conducting block in the mounting groove, the heat-conducting block is inconsistent with the heat-conducting block, around being equipped with condensing coil pipe in the mounting groove, be connected with upper shell cover and lower shell cover on the casing, form inclosed cooling chamber between upper shell cover and the mounting groove after the lower shell cover amalgamation. This application has the heat dispersion that improves the motor, guarantees the work efficiency and the life's of motor effect.

Description

Water-cooled permanent magnet synchronous motor

Technical Field

The utility model belongs to the technical field of PMSM technique and specifically relates to a water-cooled PMSM is related to.

Background

At present, the motor for the automobile is different from power devices in other fields, and has higher requirements, such as small volume, light weight, high efficiency, low-speed large torque, high-speed constant power, wide speed regulation range and the like, so that the comfort of a new energy car is reflected, and the market acceptance rate and the occupancy rate are improved. The permanent magnet synchronous motor has the characteristics of small volume, good performance, high efficiency, high reliability and the like, and is more and more widely applied to the field of new energy saloon cars.

The rotor permanent magnet is divided into a surface-mounted type and a built-in type according to different installation positions of the permanent magnet on the rotor. Surface-mounted permanent magnets are typically tile-shaped and are attached to the outer surface of the rotor core. The built-in permanent magnets are arranged in the rotor and distributed in a linear or V shape. Since the permanent magnets are embedded inside the rotor, the permanent magnets can be prevented from flying out at high-speed operation. The motor can produce the heat when using, if can not in time effectively distribute away the heat and make the motor cooling, will influence the availability factor and the life-span of motor, burns out the motor even, and the heat dissipation of current motor often relies on the fan self-cooling mode heat dissipation of the motor of motor self, and the radiating effect is not good.

SUMMERY OF THE UTILITY MODEL

In order to improve the heat dispersion of motor, guarantee the work efficiency and the life of motor, this application provides a water-cooled PMSM.

The application provides a water-cooled PMSM adopts following technical scheme:

the utility model provides a water-cooled PMSM, includes motor body, motor body includes casing, end cover, pivot, rotor and stator, the end cover is connected in the tip of casing, the end cover is equipped with one respectively at the both ends of casing, the pivot is connected between two end covers, the rotor is connected in the pivot, the stator is connected inside the casing, the rotor is located the stator inside and with the coaxial setting of stator, the mounting groove has been seted up on the casing, the length direction setting of casing is followed to the mounting groove, the circumference setting of casing is followed to the mounting groove, the mounting hole has been seted up to the tank bottom of mounting groove, the mounting hole runs through the casing, the mounting hole is a plurality of evenly having arranged at the tank bottom of mounting groove, be connected with the heat-conducting block in the mounting hole, the one deck heat-conducting plate has been laid to the tank bottom of mounting groove, the heat-conducting block is inconsistent with the heat-conducting plate, around being equipped with condensing coil in the mounting groove, be connected with upper shell cover and lower shell cover on the casing, form inclosed cooling chamber between upper shell cover and the mounting groove after upper shell cover amalgamation.

Preferably, the heat conduction block comprises an insertion part and a limiting part, the heat conduction block is arranged in a T shape, the insertion part is inserted into the mounting hole, and the limiting part abuts against the bottom of the mounting groove.

Preferably, the shell is connected with a sealing ring, and the sealing ring is positioned between the shell and the spliced upper shell cover and lower shell cover.

Preferably, the upper shell cover and the lower shell cover are respectively provided with a through hole for the end part of the condensing coil to pass through.

To sum up, the application comprises the following beneficial technical effects:

1. the utility model discloses a set up heat conduction piece, heat-conducting plate, condenser coil, go up clamshell and lower clamshell, by last clamshell and lower clamshell amalgamation back and form the cooling chamber between the casing, make the cooling chamber keep low temperature through condenser coil to utilize heat conduction piece and heat-conducting plate to make cooling chamber and the inside high-efficient geothermol power exchange that produces of casing, reduce the inside temperature of casing, thereby reached the heat dispersion that improves the motor, guaranteed the work efficiency and the life's of motor effect.

Drawings

Fig. 1 is a schematic overall structure diagram of a water-cooled permanent magnet synchronous motor in an embodiment of the present application;

fig. 2 is an enlarged view for embodying point a in the embodiment of the present application.

Description of reference numerals: 1. a motor body; 11. a housing; 111. mounting grooves; 112. mounting holes; 113. a seal ring; 12. an end cap; 13. a rotating shaft; 14. a rotor; 15. a stator; 2. a heat conducting block; 21. a plug-in part; 22. a limiting part; 3. a heat conducting plate; 4. a condenser coil; 5. an upper housing shell; 6. a lower shell cover; 7. a cooling chamber; 8. and a through hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two original pieces can be directly connected or indirectly connected through an intermediate medium, or the two original pieces can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the application discloses a water-cooled permanent magnet synchronous motor. Referring to fig. 1 and 2, the water-cooled permanent magnet synchronous motor includes a motor body 1, the motor body 1 includes a housing 11, an end cover 12, a rotating shaft 13, a rotor 14 and a stator 15, the end cover 12 is connected to an end portion of the housing 11, the end cover 12 is respectively provided with one at both ends of the housing 11, the rotating shaft 13 is connected between the two end covers 12, the rotor 14 is connected to the rotating shaft 13, the stator 15 is connected to an inside of the housing 11, the rotor 14 is located inside the stator 15 and coaxially arranged with the stator 15, a mounting groove 111 is formed on the housing 11, the mounting groove 111 is arranged along a length direction of the housing 11, the mounting groove 111 is arranged along a circumferential direction of the housing 11, a mounting hole 112 is formed in a groove bottom of the mounting groove 111, a plurality of mounting holes 112 are uniformly arranged at the groove bottom of the mounting groove 111, a heat conduction block 2 is connected to the mounting hole 112, a layer of heat conduction plate 3 is laid at the groove bottom of the mounting groove 111, the heat conduction block 2 abuts against the heat conduction plate 3, the heat conduction plate 3 is arranged along the circumferential direction of the housing 11, a condensation coil 4 is arranged in the mounting groove 111, an upper housing cover 5 and a cooling cavity 7 is formed between the housing cover 6 and the lower housing 11.

Referring to fig. 2, the heat conduction block 2 is composed of an insertion portion 21 and a limiting portion 22, the heat conduction block 2 is arranged in a T shape, the insertion portion 21 is inserted into the mounting hole 112, and the limiting portion 22 abuts against the bottom of the mounting groove 111.

Referring to fig. 1, a sealing ring 113 is connected to the casing 11, the sealing ring 113 is located between the casing 11 and the upper housing 5 and the lower housing 6 after being spliced, the sealing performance of the cooling cavity 7 is improved by the sealing ring 113, the heat exchange between the cooling cavity 7 and the outside of the motor body 1 is reduced, the heat exchange efficiency between the cooling cavity 7 and the inside of the casing 11 is ensured, and the cooling effect is improved.

Referring to fig. 1, the upper housing 5 and the lower housing 6 are respectively provided with a through hole 8 for the end of the condenser coil 4 to pass through.

The implementation principle of the water-cooled permanent magnet synchronous motor in the embodiment of the application is as follows: this PMSM during operation can let in the cooling water in to the condenser pipe, utilizes the cooling water to reduce the inside temperature in cooling chamber 7, simultaneously, utilizes heat conduction piece 2 and heat-conducting plate 3 to conduct the inside temperature of casing 11 to cooling chamber 7 in, carries out the heat exchange with the low temperature in the cooling chamber 7 to reduce the inside temperature of casing 11.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (4)

1. A water-cooled permanent magnet synchronous motor is characterized in that: including motor body (1), motor body (1) includes casing (11), end cover (12), pivot (13), rotor (14) and stator (15), end cover (12) are connected in the tip of casing (11), end cover (12) are equipped with one respectively at the both ends of casing (11), pivot (13) are connected between two end covers (12), rotor (14) are connected on pivot (13), stator (15) are connected inside casing (11), rotor (14) are located stator (15) inside and with stator (15) coaxial setting, mounting groove (111) have been seted up on casing (11), the length direction setting of casing (11) is followed in mounting groove (111), the circumference setting of casing (11) is followed in mounting groove (111), mounting hole (112) have been seted up to the tank bottom of mounting groove (111), casing (11) are run through in mounting hole (112), mounting hole (112) have evenly arranged at the tank bottom of mounting groove (111) a plurality of heat conduction, mounting hole (112) interconnection has been connected with in-connection piece (112), tank bottom (111) is equipped with one deck condensation heat-conducting plate (3), heat-conducting plate (3) and heat-conducting plate (3) are offset, the cooling structure is characterized in that an upper shell cover (5) and a lower shell cover (6) are connected to the shell (11), and a closed cooling cavity (7) is formed between the spliced upper shell cover (5) and the spliced lower shell cover (6) and the mounting groove (111).

2. The water-cooled permanent magnet synchronous motor according to claim 1, characterized in that: the heat conduction block (2) is composed of an insertion part (21) and a limiting part (22), the heat conduction block (2) is arranged in a T shape, the insertion part (21) is inserted into the mounting hole (112), and the limiting part (22) abuts against the bottom of the mounting groove (111).

3. The water-cooled permanent magnet synchronous motor according to claim 1, characterized in that: the sealing ring (113) is connected to the shell (11), and the sealing ring (113) is located between the shell (11) and the upper shell cover (5) and the lower shell cover (6) after being spliced.

4. The water-cooled permanent magnet synchronous motor according to claim 1, characterized in that: and the upper shell cover (5) and the lower shell cover (6) are respectively provided with a through hole (8) for the end part of the condensing coil pipe (4) to pass through.

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