CN211287999U

CN211287999U - Motor-driven compressor

Info

Publication number: CN211287999U
Application number: CN201922086967.7U
Authority: CN
Inventors: 常怀春; 丁一; 赵朋朋; 张桂鑫; 时传兴; 李敬
Original assignee: Shandong Hualu Hengsheng Chemical Co Ltd
Current assignee: Shandong Hualu Hengsheng Chemical Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-18
Anticipated expiration: 2029-11-28

Abstract

The application relates to a motor-driven compressor, including: the device comprises a base and a compressor shell, wherein the inner wall of the base is hermetically and slidably connected with a sliding isolation unit, and the base is divided into an induction cavity and a cooling cavity through the sliding isolation unit; the cooling cavity is used for arranging cooling liquid, and the induction cavity is used for arranging evaporating liquid; the compressor shell is arranged on the upper side of the base, and the compressor shell is divided into a driving cavity and a processing cavity; a compressor body is arranged in the treatment cavity, and a driving motor connected with the compressor body is arranged in the driving cavity; a cooling pipe is arranged in the driving cavity, one end of the cooling pipe is provided with a seal, and the cooling pipe is communicated with the cooling cavity; the driving cavity is communicated with the sensing cavity through a heat conduction unit, and the heat conduction unit is used for conducting heat in the driving cavity to the sensing cavity. Through the technical scheme of this application, realized the temperature variation in the auto-induction drive intracavity, cooled down it automatically, need not artifical the selection.

Description

Motor-driven compressor

Technical Field

The application relates to the field of compressors, in particular to a motor-driven compressor.

Background

The compressor is a driven fluid machine for lifting low-pressure gas into high-pressure gas, is the heart of a refrigeration system, sucks low-temperature and low-pressure refrigerant gas from an air suction pipe, drives a piston to compress the refrigerant gas by the operation of a motor with a main shaft provided with an electrostatic carbon brush, and discharges the high-temperature and high-pressure refrigerant gas to an exhaust pipe to provide power for a refrigeration cycle.

In the actual life, along with the long-time work of compressor, the long-time work of actuating mechanism's driving motor itself can produce a large amount of heats, and these heats pile up in the compressor casing for a long time, often can influence driving motor's life, and driving motor is worth expensive, great improvement the cost of maintenance of compressor, in the correlation technique, can not make effective processing to these a large amount of accumulations heats, often need the manual work to handle it.

In addition, driving motor is at the in-process of work, and its output shaft can produce a large amount of charges, and these charges can transmit for the compressor bearing, cause the damage to the compressor bearing, influence the life of compressor, and the practicality is not strong.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem or at least partially solve the above technical problem, the present application provides a motor-driven compressor.

The application provides a motor-driven compressor, includes: the device comprises a base and a compressor shell, wherein the inner wall of the base is hermetically and slidably connected with a sliding isolation unit, and the base is divided into an induction cavity and a cooling cavity through the sliding isolation unit; the cooling cavity is used for arranging cooling liquid, and the induction cavity is used for arranging evaporating liquid; a sliding isolation unit configured to slide within the base in response to a pressure within the cooling cavity; the compressor shell is arranged on the upper side of the base, and the compressor shell is divided into a driving cavity and a processing cavity; wherein, a compressor body is arranged in the processing cavity, and a driving motor connected with the compressor body is arranged in the driving cavity; wherein, a cooling pipe is arranged in the driving cavity, one end of the cooling pipe is provided with a seal, and the cooling pipe is communicated with the cooling cavity; the driving cavity is communicated with the sensing cavity through a heat conduction unit, and the heat conduction unit is used for conducting heat in the driving cavity to the sensing cavity.

In some embodiments, the end of the output shaft of the driving motor is fixedly connected with an intermediate shaft through a coupler, and one end of the intermediate shaft, which is far away from the coupler, is connected with a compressor bearing, wherein an electrostatic carbon brush is vertically arranged on the coupler.

In certain embodiments, the cooling tube surrounds the periphery of a motor casing of the drive motor.

In some embodiments, the cooling pipe is fixedly connected with the inner side wall of the compressor shell through a plurality of groups of fixing blocks.

In certain embodiments, the cooling tube is spring-type.

In some embodiments, the end of the intermediate shaft remote from the coupling extends through the partition between the drive chamber and the process chamber and is connected to the compressor bearing.

In certain embodiments, the evaporative liquid comprises liquid methylene chloride having a boiling point of 39.75 degrees celsius.

In certain embodiments, the heat conducting unit includes: the heat-conducting fin is arranged in the driving cavity, and the heat-conducting wire is connected with the heat-conducting fin and extends to the sensing cavity.

In some embodiments, the heat-conducting sheet is made of an aluminum alloy, and the heat-conducting wires are made of copper wires.

In some embodiments, a plurality of sets of supports are fixedly arranged on the lower side wall of the base, and a silica gel pad with a grid pattern is arranged on the lower side wall of each support.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: absorb the heat of drive intracavity through the cooling tube, avoid drive intracavity high temperature, influence driving motor's life, reduced the utility model discloses a cost of maintenance, heat conduction unit will drive the heat transfer of intracavity and give the response chamber to cause the vaporization of evaporating liquid in the response intracavity, go into the cooling tube with the cooling liquid pressure of cooling off the intracavity, cool down to the drive chamber fast, fine protection driving motor has realized the temperature variation of auto-induction drive intracavity, timely automation is cooled down it, need not artifical the selection, the practicality is stronger.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an embodiment of a motor-driven compressor provided in an embodiment of the present application; and

fig. 2 is a schematic top view of a cooling pipe of an embodiment of a motor-driven compressor according to an embodiment of the present disclosure.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning by themselves. Thus, "module", "component" or "unit" may be used mixedly.

In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 and 2, an embodiment of the present application provides a motor-driven compressor, including: the device comprises a base 1 and a compressor shell 2, wherein the inner wall of the base 1 is hermetically and slidably connected with a sliding isolation unit 20, and the base 1 is divided into an induction cavity 11 and a cooling cavity 12 through the sliding isolation unit 20; the cooling cavity 12 is used for accommodating cooling liquid, and the sensing cavity 11 is used for accommodating evaporating liquid; the compressor shell 2 is arranged on the upper side of the base 1, and the interior of the compressor shell 2 is divided into a driving cavity 3 and a processing cavity 4; wherein, a compressor body 5 is arranged in the processing cavity 4, and a driving motor 21 connected with the compressor body 5 is arranged in the driving cavity 3; wherein, a cooling pipe 14 is arranged in the driving cavity 3, one end of the cooling pipe 14 is provided with a seal, and the cooling pipe 14 is communicated with the cooling cavity 12; the driving chamber 3 is communicated with the sensing chamber 11 through a heat conducting unit 13, and the heat conducting unit 13 is used for conducting heat in the driving chamber 3 to the sensing chamber 11.

Through this embodiment, set up the heat that the cooling tube absorbed the drive intracavity, avoid drive intracavity high temperature, influence driving motor's life, reduced the utility model's cost of maintenance, heat conduction unit transmits the heat of drive intracavity for the response chamber to cause the vaporization of evaporating liquid in the response chamber, go into the cooling tube with the cooling hydraulic pressure of cooling intracavity, cool down the drive chamber fast, fine protection driving motor has realized the temperature variation of auto-induction drive intracavity, timely automation is cooled down it, need not the manual selection, and the practicality is stronger.

In some embodiments, the end of the output shaft of the driving motor 21 is fixedly connected to the intermediate shaft 18 through the coupler 16, and the end of the intermediate shaft 18 away from the coupler 16 is connected to the compressor bearing 19, wherein the coupler 16 is vertically provided with the electrostatic carbon brush 17. By providing the electrostatic carbon brush 17, a large amount of static electricity generated by the output shaft of the driving motor is effectively removed. The damage of the static charge to the bearing of the compressor is avoided, and the service life of the compressor is prolonged.

In some embodiments, the cooling tube 14 surrounds the periphery of the motor case 8 of the drive motor 21. In some embodiments, the cooling pipe 14 is fixedly connected to the inner side wall of the compressor housing 2 by a plurality of sets of fixing blocks 15. In certain embodiments, the cooling tube 14 is spring-type.

In some embodiments, the end of the intermediate shaft 18 remote from the coupling 16 extends through the partition between the drive chamber 3 and the process chamber 4 and is connected to a compressor bearing 19.

In certain embodiments, the heat conducting unit 13 includes: a heat conduction sheet 131 disposed in the driving chamber 3, and a heat conduction wire 132 connected to the heat conduction sheet 131 and extending to the sensing chamber 11. In some embodiments, the heat conductive sheet 131 is made of aluminum alloy, and the heat conductive wires 132 are made of copper wire. The heat conduction piece 131 of aluminum alloy preparation and the heat conduction silk 132 of copper wire preparation can be comparatively rapid with the heat transfer in the drive chamber 3 for response chamber 11 to the evaporation liquid gasification in the faster response chamber 11 that causes impresses the coolant liquid in the cooling chamber 12 in the cooling tube 14, cools down the drive chamber fast, fine protection driving motor 21.

In some embodiments, the lower side wall of the base 1 is fixedly provided with a plurality of sets of supports 22, and the lower side wall of each support 22 is provided with a silicone pad 221 having a grid pattern.

As further described below with reference to fig. 1 and 2.

As shown in fig. 1, the compressor housing 2 is fixedly arranged on the upper side wall of the base 1, a plurality of groups of evenly distributed supports 22 are fixedly arranged on the lower side wall of the base 1, a silica gel pad 221 with a deeper grid pattern on one side layer is arranged on the lower side wall of each support 22, the arrangement of the silica gel pad 221 with the grid patterns on the lower side wall of the support 22 reduces the vibration amplitude of the compressor in the working process due to the work of the driving motor 21 to a certain extent, phase change protects each part mechanism in the compressor housing 2, on the other hand, the friction force between the support 22 and the ground is increased, and the compressor is prevented from relative displacement with the ground and affecting the use in the working process.

Separate into drive chamber 3 and process chamber 4 through the baffle in the compressor housing 2, drive chamber 3 and process chamber 4 set up side by side, and process chamber 4 is located drive chamber 3 top, is provided with compressor body 5 in the process chamber 4, and compressor housing 2 is fixed to be provided with intake pipe 6 and blast pipe 7 with compressor body 5 matching.

The fixed driving motor 21 that is provided with and matches with compressor body 5 of 3 downside inner walls in drive chamber, driving motor 21 includes motor casing 8, rotor 9 and stator 10, and the output shaft end of driving motor 21 is through shaft coupling 16 and the 18 fixed connection of jackshaft at the motor end, and the one end of the shaft coupling 16 that the jackshaft 18 is far away from the motor end upwards runs through baffle fixedly connected with compressor bearing 19, and the vertical static carbon brush 17 that is provided with on the shaft coupling 16 of motor end.

The inner wall of the base 1 is hermetically and slidably connected with a sliding isolation unit 20 (a piston plate in fig. 1), the base 1 is internally divided into an induction cavity 11 and a cooling cavity 12 through the sliding isolation unit 20, the cooling cavity 12 and the induction cavity 11 are respectively internally provided with cooling liquid and evaporating liquid, and the evaporating liquid mainly comprises liquid dichloromethane with the boiling point of 39.75 ℃. Still be provided with cooling tube 14 in the drive chamber 3, cooling tube 14 sets to the spring type, and even parcel is around driving motor 21, and cooling tube 14 sets to the spring type, and the heat in the absorption drive chamber 3 that can be more quick even avoids drive chamber 3 interior high temperature, influences driving motor's life, has reduced cost of maintenance. 14 one end of cooling tube is equipped with and seals, and the cooling tube 14 other end runs through compressor housing 2 lower lateral wall and cooling chamber 12 intercommunication downwards, through 15 fixed connection of multiunit fixed block between cooling tube 14 and the 2 inside walls of compressor housing, still be provided with conducting strip 131 in the drive chamber 3, conducting strip 131 is connected through conducting wire 132 with response chamber 11, conducting strip 131 is formed by the better aluminum alloy preparation of thermal conductivity, conducting wire 132 is made by the higher copper wire of coefficient of heat conductivity, the conducting strip 131 of aluminum alloy preparation and the conducting wire 132 of copper wire preparation can be comparatively rapid with the heat transfer in the drive chamber 3 for response chamber 11, thereby more rapid cause the evaporation liquid gasification in the response chamber 11, in cooling tube 14 is impressed the coolant liquid in the cooling chamber 12, cool down drive chamber 3 fast, fine protection driving motor 21.

In the embodiment of the present application, after the driving motor 21 works for a period of time, the temperature in the driving cavity 3 increases therewith, the heat conducting fins 131 and the heat conducting wires 132 transfer the temperature in the driving cavity 3 to the evaporating liquid in the sensing cavity 11, the evaporating liquid is heated and gasified, the volume of the evaporating liquid increases, the sliding isolation unit 20 is pushed to compress the cooling liquid in the cooling cavity 12, the cooling liquid enters the cooling pipe 14 along with the cooling liquid, the cooling liquid is in the process of continuous forward movement of the cooling pipe 14, the heat in the driving cavity 3 is absorbed simultaneously, the temperature in the driving cavity 3 is gradually reduced along with the absorption of the heat in the driving cavity 3, the evaporating liquid is liquefied again, the sliding isolation unit 20 recovers the original position, the cooling liquid in the cooling pipe 14 enters the cooling cavity 12 again, and the cooling treatment in the driving cavity 3 is completed.

In addition, during the operation of the driving motor 21, the electrostatic carbon brush 17 disposed on the motor end coupling 16 absorbs and discharges a large amount of static electricity generated by the output shaft of the driving motor 21, thereby preventing the static electricity from damaging the compressor bearing 19.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A motor-driven compressor, comprising: a base (1) and a compressor housing (2), wherein,

the inner wall of the base (1) is hermetically and slidably connected with a sliding isolation unit (20), and the base (1) is divided into an induction cavity (11) and a cooling cavity (12) through the sliding isolation unit (20); the cooling cavity (12) is used for arranging cooling liquid, and the induction cavity (11) is used for arranging evaporating liquid; the sliding isolation unit (20) is configured to slide within the base (1) in response to pressure within the cooling chamber (12);

the compressor shell (2) is arranged on the upper side of the base (1), and the interior of the compressor shell (2) is divided into a driving cavity (3) and a processing cavity (4); wherein a compressor body (5) is arranged in the processing cavity (4), and a driving motor (21) connected with the compressor body (5) is arranged in the driving cavity (3);

a cooling pipe (14) is arranged in the driving cavity (3), a seal is arranged at one end of the cooling pipe (14), and the cooling pipe (14) is communicated with the cooling cavity (12); the driving cavity (3) is communicated with the induction cavity (11) through a heat conduction unit (13), and the heat conduction unit (13) is used for conducting heat in the driving cavity (3) to the induction cavity (11).

2. The motor-driven compressor according to claim 1, characterized in that the end of the output shaft of the driving motor (21) is fixedly connected with an intermediate shaft (18) through a coupling (16), and the end of the intermediate shaft (18) far away from the coupling (16) is connected with a compressor bearing (19), wherein an electrostatic carbon brush (17) is vertically arranged on the coupling (16).

3. Motor-driven compressor according to claim 1, characterized in that the cooling pipe (14) surrounds the periphery of the motor housing (8) of the drive motor (21).

4. A motor-driven compressor according to claim 1 or 3, characterized in that the cooling pipe (14) is fixedly connected to the inner side wall of the compressor housing (2) by means of a plurality of sets of fixing blocks (15).

5. Motor-driven compressor according to claim 3, characterized in that the cooling tube (14) is of the spring type.

6. Motor-driven compressor according to claim 2, characterized in that the end of the intermediate shaft (18) remote from the coupling (16) extends through a partition between the drive chamber (3) and the process chamber (4) and is connected to the compressor bearing (19).

7. A motor-driven compressor according to claim 1 or 2, wherein the evaporated liquid comprises liquid dichloromethane having a boiling point of 39.75 degrees celsius.

8. The motor-driven compressor according to claim 1, wherein the heat conducting unit (13) comprises: the heat conducting wires (132) are connected with the heat conducting fins (131) and extend to the induction cavity (11).

9. The motor-driven compressor according to claim 8, wherein the heat conductive sheet (131) is made of an aluminum alloy, and the heat conductive wire (132) is made of a copper wire.

10. The motor-driven compressor according to claim 1, characterized in that a plurality of sets of seats (22) are fixedly arranged on the lower side wall of the base (1), and a silicone pad (221) having a grid pattern is arranged on the lower side wall of each seat (22).