Scroll compressor including retaining wall housing electrical machinery mechanism

• US 11,359,628 B2
• Filed: 03/07/2018
• Issued: 06/14/2022
• Est. Priority Date: 04/28/2017
• Status: Active Grant

• Current Assignee: Shanghai Highly New Energy Technology Co., Ltd.
• Original Assignee: Shanghai Highly New Energy Technology Co., Ltd.
• Inventors: Song, Xuefeng, Wang, Yuqiang, Mou, Yingtao
• Primary Examiner(s): Dounis, Laert
• Application Number:
  US16/608,334
• Publication Number:
  US 20200132072A1
• Time in Patent Office: 1,560 Days
• CPC Class Codes: F04C 18/0215 where only one member is moving
• CPC Class Codes: F04C 18/0292 Ports or channels located in the wrap
• CPC Class Codes: F04C 2240/10 Stators
• CPC Class Codes: F04C 2240/30 Casings or housings
• CPC Class Codes: F04C 2240/803 Electric connectors or cables; Fittings therefor
• CPC Class Codes: F04C 2240/808 Electronic circuits (e.g. inverters) installed inside the machine
• CPC Class Codes: F04C 23/02 Pumps characterised by combination with, or adaptation to, specific driving engines or motors
• CPC Class Codes: F04C 28/00 Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
• CPC Class Codes: F04C 29/00 Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
• CPC Class Codes: F04C 29/047 Cooling of electronic devices installed inside the pump housing, e.g. inverters
• CPC Class Codes: F04C 29/12 Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
• CPC Class Codes: F05C 2201/903 Aluminium alloy, e.g. AlCuMgPb F34,37

Abstract

A compressor comprises a housing including a first opening to form a receiving space and a retaining wall, wherein the receiving space is divided, by the retaining wall, a low-pressure chamber and a controller chamber. A compressing mechanism further comprises a fixed scroll plate including a low-pressure side of scroll wraps and a high-pressure side, opposite to the scroll wraps; an orbiting scroll plate, located in the receiving space, including a side, facing the scroll wraps of the fixed scroll plate, of scroll wraps and a compression chamber is formed by the scroll wraps of the fixed scroll plate and the scroll wraps of the orbiting scroll plate; an electrical machinery mechanism, located in the low-pressure chamber, including a rotor and a stator, wherein the electrical machinery mechanism drives the compressing mechanism to rotates to compress refrigerant in the compression chamber.

Claims

1. A compressor, comprising:

a housing including a first opening to form a receiving space and a retaining wall, wherein the receiving space is divided, by the retaining wall, into a low-pressure chamber and a controller chamber;

a compressing mechanism comprising;

a fixed scroll plate including a low-pressure side of scroll wraps and a high-pressure side, opposite to the scroll wraps;

an orbiting scroll plate, located in the receiving space, including a side, facing the scroll wraps of the fixed scroll plate, of scroll wraps and a compression chamber is formed by the scroll wraps of the fixed scroll plate and the scroll wraps of the orbiting scroll plate;

an electrical machinery mechanism, located in the low-pressure chamber, including a rotor and a stator, wherein the electrical machinery mechanism drives the compressing mechanism to rotate to compress refrigerant in the compression chamber;

wherein the fixed scroll plate is made of forged aluminum alloy or extrusion casted aluminum alloy;

the compressor further comprises;

an upper cover including a high-pressure chamber formed between the upper cover and the high-pressure side of the fixed scroll plate and a suction chamber is formed on the low-pressure side of the fixed scroll plate;

wherein the fixed scroll plate includes an exhaust port connecting the high-pressure chamber and a suction port connecting the suction chamber;

wherein the compressor is a vertical compressor, the refrigerant flows into the vertical compressor via the suction port of the fixed scroll plate, and then flows away from the fixed scroll plate and towards a bottom wall of the housing, wherein the refrigerant flows by the retaining wall of the housing and cools down electrical controlling components inside the controller chamber and the refrigerant flows by the electrical machinery mechanism to cool down the electrical machinery mechanism;

wherein the refrigerant flows into the compression chamber formed between the fixed scroll plate and orbiting scroll plate.

2. The compressor of claim 1, wherein the low-pressure side of the fixed scroll plate is opposite to the first opening of the housing to form the receiving space and the shape of the receiving space is similar to a cuboid.

3. The compressor of claim 1, wherein the controller chamber comprises a second opening and the compressor further comprises a controller-chamber cover for sealing the second opening;

electrical control components located in the controller chamber, wherein the controller chamber is located between the controller-chamber cover and the retaining wall;

wherein, the retaining wall includes a reentrant facing the second opening of the controller chamber;

the electric controlling components comprises;

a first electric controlling component disposed in the reentrant;

a second electric controlling component and the retaining wall are disposed in a space being outside of the reentrant;

wherein, the first electric controlling component includes at least one of capacitors, inductors and relays;

the second electric controlling component includes power component patched with the retaining wall.

4. The compressor of claim 1, wherein the compressor further comprises:

an upper holder fixed with the low-pressure side of the fixed scroll plate;

a lower holder fixed to the upper holder via the stator.

5. The compressor of claim 4, wherein the upper holder includes a first side connected and fixed to the fixed scroll plate, and a second side opposite to the first side, wherein a plurality of upper-holder bosses are disposed on the second side of the upper holder and each of the upper-holder bosses includes a threaded hole;

wherein the stator includes a plurality of first bolt-through holes corresponding to the threaded holes and the lower holder includes a plurality of second bolt-through holes corresponding to the threaded holes;

bolts going through the second bolt-through holes, the first bolt-through holes and the threaded holes for fixing the upper holder, the stator and the lower holder.

6. The compressor of claim 5, wherein the compressor further comprises guide pillars and each of the bolts goes through a guide pillar, which allows the guiding pillar to be located between an inner wall of the first bolt-through holes of the stator and the bolt, wherein the guide pillar includes an end abutting the upper holder and the other end abutting the lower holder.

7. The compressor of claim 6, wherein an axial length of the guide pillars is greater than an axial length of the first bolt-through holes.

8. The compressor of claim 4, wherein bolts go through a through hole of the upper holder and a threaded hole of the fixed scroll plate, which allows the low-pressure side of the fixed scroll plate to connect and fix the upper holder.

9. The compressor of claim 4, wherein the stator is coupled to a binding post via a lead-out wire and the binding post, disposed between an inner wall of the housing and an outer wall of the stator, is located away from a bottom wall of the housing.

10. The compressor of claim 9, wherein the binding post is disposed on the fixed scroll plate.

11. The compressor of claim 10, wherein the binding post includes a pin and an end plate and the fixed scroll plate includes through holes which allows the pin of the binding post to go through and a groove, facing an opening of the electrical machinery mechanism, surrounding the through hole;

wherein the end plate, away from a surface of the electrical machinery mechanism, is contacted with a bottom wall of the groove.