CN113530815B

CN113530815B - Horizontal scroll compressor and temperature adjusting equipment

Info

Publication number: CN113530815B
Application number: CN202110823560.7A
Authority: CN
Inventors: 凡沁; 冯旭伟; 相玲玲; 李文华; 李世华; 麦嘉伟; 朱飞; 黄骏
Original assignee: Wanbao Group Compressor Co ltd; Shijiazhuang Guoxiang Transportation Equipment Co Ltd
Current assignee: Wanbao Group Compressor Co ltd; Shijiazhuang Guoxiang Transportation Equipment Co Ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2023-04-14
Anticipated expiration: 2041-07-21
Also published as: CN113530815A

Abstract

The invention discloses a horizontal scroll compressor and temperature adjusting equipment, which comprises a shell and a machine core arranged in the shell, wherein the machine core comprises a fixed scroll, a movable scroll, a rack, a crankshaft and a motor assembly, the rack is supported on the shell, the crankshaft is horizontally arranged on the rack through a bearing, the movable scroll is provided with a crankshaft matching shaft hole, the eccentric part of the crankshaft is embedded into the crankshaft matching shaft hole, the movable scroll is provided with an oil supply assembly below the crankshaft matching shaft hole, the oil supply assembly comprises an oil storage part and a piston, the piston is arranged in the oil storage part and divides the oil storage part into a first cavity and a second cavity, thermal expansion liquid is arranged in the first cavity, the piston can move in the oil storage part under the action of the thermal expansion liquid to change the volume of the second cavity, and the second cavity is provided with an oil supply channel leading to the crankshaft matching shaft hole. The irreversible damage of the scroll compressor caused by short-time oil shortage can be avoided, the failure rate of the compressor is reduced, and the reliability and the service life of the compressor are improved.

Description

Horizontal scroll compressor and temperature adjusting equipment

Technical Field

The invention is used in the field of compressors, and particularly relates to a horizontal scroll compressor and temperature regulating equipment.

Background

The application environment of the vehicle compressor is severe, the working conditions are variable, the condition exceeding the service condition range of the compressor exists, for example, the climbing process is greatly tested for the continuous oil supply of the compressor, and sometimes, the condition of short-time oil shortage exists.

Moreover, the inverter scroll compressor has a long operation time under a low rotation speed condition, and is easy to cause poor oil return of the system.

In addition, the sliding bearing between the scroll compressor moving disc and the crankshaft is easy to generate irreversible damage due to short-time oil shortage, the service life of the compressor is influenced, and the compressor is even blocked in severe cases.

Disclosure of Invention

The invention aims to solve at least one technical problem in the prior art and provides a horizontal scroll compressor and a temperature regulating device.

The technical scheme adopted by the invention for solving the technical problems is as follows:

in a first aspect, the horizontal scroll compressor comprises a shell and a movement arranged inside the shell, wherein the movement comprises a fixed scroll, a movable scroll, a frame, a crankshaft and a motor assembly, the frame is supported on the shell, the crankshaft is horizontally arranged on the frame through a bearing, a stator of the motor assembly is connected with the shell, a rotor of the motor assembly is connected with a main shaft part of the crankshaft, the movable scroll is provided with a crankshaft matching shaft hole, an eccentric part of the crankshaft is embedded into the crankshaft matching shaft hole, an oil supply assembly is arranged below the crankshaft matching shaft hole and comprises an oil storage component and a piston, the piston is arranged inside the oil storage component and divides the oil storage component into a first cavity and a second cavity, thermal expansion liquid is arranged in the first cavity, the piston can move inside the oil storage component under the action of the thermal expansion liquid to change the volume of the second cavity, and the second cavity is provided with an oil supply channel leading to the crankshaft matching shaft hole.

With reference to the first aspect, in certain implementations of the first aspect, the thermal expansion liquid has a volume expansion coefficient of not less than 0.0005L/° c.

With reference to the first aspect and the foregoing implementation manners, in certain implementation manners of the first aspect, a mounting blind hole is formed in the bottom of the movable scroll plate, and the first cavity of the oil storage component is embedded in the mounting blind hole.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, a heat conducting glue is disposed between an end portion of the oil storage component and the mounting blind hole.

With reference to the first aspect and the foregoing implementation manners, in certain implementation manners of the first aspect, the end portion of the oil storage member is provided with a corrugated surface.

With reference to the first aspect and the foregoing implementations, in certain implementations of the first aspect, the oil supply passage forms an opening at a bottom of the crankshaft-fitting shaft hole.

With reference to the first aspect and the foregoing implementations, in certain implementations of the first aspect, a seal ring is disposed between the piston and an inner wall of the oil storage component.

With reference to the first aspect and the implementations described above, in certain implementations of the first aspect, the oil supply passage includes an oil delivery pipe.

With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the oil delivery pipe includes a spiral pipe section and a straight pipe section, a mounting through hole is formed in the bottom of the movable scroll, and the straight pipe section of the oil delivery pipe is embedded into the mounting through hole.

In a second aspect, a temperature regulating device comprises the horizontal scroll compressor described in any one of the implementations of the first aspect.

One of the above technical solutions has at least one of the following advantages or beneficial effects: can aggravate at local heating under the eccentric portion of bent axle and the condition of bent axle cooperation shaft hole starvation, heat transfer gives thermal expansion liquid this moment, and thermal expansion liquid heated volume grow produces the motive force to the piston, pushes the lubricating oil in the oil storage part second intracavity into bent axle cooperation shaft hole and lubricates. When the system recovers oil supply and the lubrication is sufficient, the local temperature is reduced, the volume of the thermal expansion material is reduced, and the second cavity of the oil storage component is filled with the lubricating oil again. The invention has simple structure and easy realization, can avoid irreversible damage of the scroll compressor caused by short-time oil shortage, reduces the failure rate of the compressor, and improves the reliability and the service life of the compressor.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of one embodiment of the horizontal scroll compressor of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of a piston and seal ring configuration of the embodiment shown in FIG. 1.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not construed as limiting the present invention.

In the invention, the meaning of "a plurality of" is one or more, the meaning of "a plurality of" is more than two, and the meaning of "more than", "less than", "more than" and the like is understood to not include the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can be detachably connected and can be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The technical field can reasonably determine the specific meaning of the words in the invention by combining the specific contents of the technical scheme.

Fig. 1 shows a reference direction coordinate system of an embodiment of the present invention, and the following describes the embodiment of the present invention with reference to the direction shown in fig. 1.

Referring to fig. 1, an embodiment of the present invention provides a horizontal scroll compressor, including a casing 1 and a movement 2 disposed inside the casing 1, where the movement 2 includes a fixed scroll 21, a movable scroll 22, a frame 23, a crankshaft 24 and a motor assembly 25, the frame 23 is supported on the casing 1, the crankshaft 24 is horizontally mounted on the frame 23 through a bearing, a stator of the motor assembly 25 is connected with the casing 1, a rotor of the motor assembly 25 is connected with a main shaft portion of the crankshaft 24, the movable scroll 22 has a crankshaft matching shaft hole 26, an eccentric portion of the crankshaft 24 is embedded in the crankshaft matching shaft hole 26, a sliding bearing may be disposed between the eccentric portion and the crankshaft matching shaft hole 26 as required, and the movable scroll 22 revolves in a translation manner and is matched with the fixed scroll 21 under the driving of the motor assembly 25, so as to further suck, compress and discharge a refrigerant.

The eccentric portion and the crankshaft matching shaft hole 26 will generate heat locally under the condition of lack of oil, in order to reduce abrasion, referring to fig. 1 and 2, the movable scroll 22 is provided with the oil supply assembly 3 below the crankshaft matching shaft hole 26, the oil supply assembly 3 comprises an oil storage part 31 and a piston 32, the piston 32 is arranged inside the oil storage part 31 and divides the oil storage part 31 into a first cavity 33 and a second cavity 34, the first cavity 33 is provided with thermal expansion liquid 35, the piston 32 can move inside the oil storage part 31 under the action of the thermal expansion liquid 35 to change the volume of the second cavity 34, and the second cavity 34 is provided with an oil supply channel leading to the crankshaft matching shaft hole 26.

Will be at local heating aggravation under the condition of the eccentric part of bent axle 24 and the crank shaft cooperation shaft hole 26 lack of oil, heat transfer is for thermal expansion liquid 35 this moment, and thermal expansion liquid 35 is heated the volume grow, produces the driving force to piston 32, pushes the lubricating oil push bent axle cooperation shaft hole 26 in the second chamber 34 of oil storage part 31 and lubricates. When the system returns to the oil supply and the lubrication is sufficient, the local temperature decreases, the volume of the thermal expansion material decreases, and the second chamber 34 of the oil storage member 31 is filled with the lubricating oil again. The invention has simple structure and easy realization, can avoid the irreversible damage of the scroll compressor caused by short-time oil shortage, reduces the failure rate of the compressor, and improves the reliability and the service life of the compressor.

Where the thermal expansion fluid 35 needs to have a coefficient of volumetric expansion that ensures sufficient expansion volume to drive sufficient lubricant into the crankshaft-engaging bore 26 to participate in lubrication after being heated, in embodiments of the present invention, the coefficient of volumetric expansion of the thermal expansion fluid 35 is not less than 0.0005L/c, such as, but not limited to, ethylene glycol.

Further, referring to fig. 1, the bottom of the movable scroll 22 is provided with the installation blind hole 27, the first cavity 33 of the oil storage component 31 is embedded in the installation blind hole 27, on one hand, the installation of the oil storage component 31 at the bottom of the movable scroll 22 is realized, on the other hand, the first cavity 33 of the oil storage component 31 is closer to the crankshaft matching shaft hole 26 by arranging the installation blind hole 27, so that the thermal expansion liquid 35 in the first cavity 33 can sense the temperature in the crankshaft matching shaft hole 26 more quickly and accurately, and the oil supply capacity and sensitivity of the whole oil supply assembly 3 are improved.

Further, referring to fig. 2, a heat conductive adhesive 36 is disposed between the end of the oil storage member 31 and the mounting blind hole 27, and the end of the oil storage member 31 is provided with a corrugated surface to further increase the heat transfer area and enhance the heat transfer efficiency.

In some embodiments, in order to ensure that the lubricating oil can be automatically replenished into the second cavity 34 again after the temperature is reduced, the oil supply channel is opened at the bottom of the crankshaft matching shaft hole 26, and under the condition that the lubrication is sufficient, the local temperature is reduced, the volume of the thermal expansion liquid 35 is reduced, and the second cavity 34 of the oil storage part 31 is filled with the lubricating oil again.

In order to avoid mixing of the thermal expansion liquid 35 in the first chamber 33 and the lubricating oil in the second chamber 34, a sealing ring 37 is provided between the piston 32 and the inner wall of the oil reservoir 31, see fig. 3. The packing 37 is fixedly attached to the outer periphery of the piston 32 or the inner wall of the oil reservoir 31.

The oil supply passage may be provided directly to the orbiting scroll 22, or may be provided with an oil delivery pipe connected to the oil storage member 31.

Further, referring to fig. 2, the oil delivery pipe includes a spiral pipe section 38 and a straight pipe section 39, the movable scroll 22 is provided at the bottom thereof with a mounting through hole, and the straight pipe section of the oil delivery pipe is inserted into the mounting through hole. The length of the oil delivery pipe can be effectively increased in a limited space by arranging the spiral pipe section, the oil storage capacity of the oil storage part 31 is increased, and the stability of lubricating oil in the oil storage part 31 in the revolution and translation process of the movable scroll 22 is greatly improved by the spiral pipe.

The embodiment of the invention also provides temperature adjusting equipment which comprises the horizontal scroll compressor in any one of the embodiments. Such as air conditioners, refrigerators and the like.

In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope of the claims of the present application.

Claims

1. The utility model provides a horizontal scroll compressor, its characterized in that includes the casing and establishes the inside core of casing, the core includes quiet vortex dish, moves vortex dish, frame, bent axle and motor element, the frame support in the casing, the bent axle pass through the bearing horizontal installation in the frame, motor element's stator with the casing is connected, motor element's rotor with the main shaft portion of bent axle is connected, it has bent axle cooperation shaft hole to move the vortex dish, the eccentric portion embedding of bent axle cooperation shaft hole, it is in to move the vortex dish the below in bent axle cooperation shaft hole is equipped with fuel feeding subassembly, fuel feeding subassembly includes oil storage component and piston, the piston is established inside the oil storage component, and will the oil storage component separates for first chamber and second chamber, be equipped with thermal energy liquid in the first chamber, the piston can be in under the effect of thermal energy liquid the inside motion of oil storage component is in order to change the volume of second chamber, the second chamber has and causes fuel feeding passageway in the bent axle cooperation shaft hole, it is equipped with the installation blind hole to move the position that the vortex dish bottom corresponds bent axle cooperation shaft hole, the first chamber inlay the first chamber and inlay the heat conduction oil storage component side end portion is close to the end portion of being equipped with the heat conduction oil storage chamber, the end portion is close to the end portion of the heat conduction oil storage chamber.

2. The horizontal scroll compressor of claim 1, wherein the coefficient of volumetric expansion of the thermal expansion liquid is not less than 0.0005L/° c.

3. The horizontal scroll compressor of claim 1, wherein the oil supply passage forms an opening at a bottom of the crankshaft-engaging shaft hole.

4. The horizontal scroll compressor of claim 1, wherein a seal is disposed between the piston and an inner wall of the oil storage member.

5. The horizontal scroll compressor of claim 1, wherein the oil supply passage comprises an oil delivery tube.

6. The horizontal scroll compressor of claim 5, wherein the oil delivery pipe comprises a spiral pipe section and a straight pipe section, a mounting through hole is formed in the bottom of the movable scroll plate, and the straight pipe section of the oil delivery pipe is embedded into the mounting through hole.

7. A tempering device comprising the horizontal scroll compressor of any one of claims 1-6.