CN108054874B - A kind of closed ammonia refrigerating compressor resistant to ammonia motor - Google Patents
A kind of closed ammonia refrigerating compressor resistant to ammonia motor Download PDFInfo
- Publication number
- CN108054874B CN108054874B CN201711335657.3A CN201711335657A CN108054874B CN 108054874 B CN108054874 B CN 108054874B CN 201711335657 A CN201711335657 A CN 201711335657A CN 108054874 B CN108054874 B CN 108054874B
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- Prior art keywords
- ammonia
- motor
- power supply
- valve
- pressure
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Compressor (AREA)
Abstract
The present invention provides a kind of closed ammonia refrigerating compressor resistant to ammonia motor, it include: inlet, compressor, transmission shaft, liquid outlet, ball bearing, solenoid valve, power supply line, power supply terminal, rotor, stator, pressure release check valve, reflux line, when motor works, solenoid valve is opened, ammonia refrigerant enters the cooling rotor of right chamber and stator from left chamber, when motor operational stoppage, solenoid valve is closed, left chamber is no longer connected to right chamber, since motor stator and rotor also have surplus heat, and ammonia has effumability, waste heat makes ammonia volatilization, the chamber inner pressure on the right is gradually increased by force, when pressure reaches critical value, ammonia refrigerant opens pressure release check valve, ammonia refrigerant flow to main pipeline by return flow line, the liquid level decline of ammonia refrigerant in right chamber, so that power supply terminal will not be immersed in corrosivity Ammonia refrigerant in.
Description
Technical field
The present invention relates to motor fields, and in particular to a kind of closed ammonia refrigerating compressor resistant to ammonia motor.
Background technique
In recent years, because it is found that freon class refrigerant is to atmospheric ozone layer has destruction and can generate greenhouse effects
Etc. environmental problems, reached in the world completely disabling CFC, gradually limitation use HCFC class refrigerant common recognition.Nowadays, people couple
Ammonia refrigerant starts to reappraise, and has put into a large amount of manpower and material resources, be dedicated to ammonia security performance and refrigeration system and its
The research of equipment and technology.
Currently, ammonia refrigerating compressor mainly has open-type and two kinds closed, at present ammonia refrigeration using it is more be to open
Formula refrigeration compressor, i.e. compressor and power are two systems independently, and motor with compressor is joined by shaft coupling
It connects,
And enclosed refrigeration compressor is that motor and compressor are enclosed in the same casing, machine winding by
In in the same system, motor has good cooling condition with ammonia refrigerant work, such motor can be than common standard electricity
Machine is much smaller, and loss can be also substantially reduced.
But the power supply terminal of the motor of existing closed ammonia refrigerating compressor is immersed in ammonia refrigerant always
(the closed ammonia refrigerating compressor as disclosed in patent document JP Tetsukai 2006-118417), due to the power supply of enclosed motor
Connecting terminal is immersed in ammoniacal liquor for a long time, and power supply terminal is easy to be corroded by ammonia refrigerant.
Summary of the invention
The present invention provides a kind of closed ammonia refrigerating compressor resistant to ammonia motor, comprising: inlet, compressor, transmission shaft,
Liquid outlet, power supply line, power supply terminal, rotor, stator, which is characterized in that compressor, transmission shaft and motor rotor,
Stator is arranged in same housing.
Preferably, closed ammonia refrigerating compressor resistant to ammonia motor further includes ball bearing, and compressor is by being mounted on ball axis
The rotor of the transmission shaft and motor that hold is sequentially connected.
Preferably, closed ammonia refrigerating compressor resistant to ammonia motor further includes ball bearing, solenoid valve, pressure release check valve, returns
Flow tube road；
Compressor is sequentially connected by the rotor of the transmission shaft and motor that are mounted on ball bearing, and transmission shaft is set two sides up and down
It is equipped with solenoid valve, solenoid valve includes coil, static iron core, spring, dynamic iron core, and solenoid valve is normally closed solenoid valve, when being only powered
Solenoid valve is just opened；When motor rotates, solenoid valves, when motor stalls, solenoid valve power-off.
The power supply line of stator is connect by power supply terminal with external power supply, and chamber on the right is arranged in power supply terminal
The top of shell, the lower part of right chamber are provided with return flow line, pass through pressure release check valve between return flow line and right chamber
Connection；
Pressure release check valve includes valve head, cavity, gasket seal, valve rod, pressure spring, valve core case, and pressure spring one end is connected to spool
On seat, the pressure spring other end is connected on valve rod, and under the elastic force effect of pressure spring, the gasket seal of valve rod upper end setting is blocked out
Mouthful, ammonia refrigerant can not flow into return flow line from right chamber, and pressure release check valve keeps normally off；When the pressure in right chamber
When strong increase, the ammonia refrigerant from right chamber can apply sufficiently large downward pressure to gasket seal, and pressure spring is compressed, ammonia
Refrigerant is flowed out from right chamber, and approach pressure release check valve and return flow line flow into main pipeline；
After closed ammonia refrigerating compressor resistant to ammonia motor stopping, left and right chamber is no longer connected to.Due to motor stator and turn
Son also has surplus heat, and ammonia has effumability, and waste heat makes ammonia volatilization, and the chamber inner pressure on the right is gradually increased by force, when pressure reaches
When to critical value, ammonia refrigerant opens pressure release check valve, and ammonia refrigerant flow to main pipeline by return flow line, in right chamber
The liquid level of ammonia refrigerant declines, so that power supply terminal will not be immersed in in corrosive ammonia refrigerant.
The invention has the following advantages: being in and stopping in compressor since the compressor on refrigerator is discontinuous operation
When machine state, closed ammonia refrigerating compressor will not be immersed in ammonia refrigerant always with the power supply terminal of resistant to ammonia motor,
Ammonia has been delayed to extend the service life of power supply terminal to the corrosion of power supply terminal.
Detailed description of the invention
The schematic diagram of Fig. 1-closed ammonia refrigerating compressor resistant to ammonia motor.
Schematic diagram of Fig. 2-closed ammonia refrigerating compressor under resistant to ammonia electric machine operation state.
The valve head partial enlarged view of Fig. 3-closed ammonia refrigerating compressor solenoid valve under resistant to ammonia electric machine operation state.
Schematic diagram of Fig. 4-closed ammonia refrigerating compressor under resistant to ammonia motor stopping state.
The pressure release check valve schematic diagram of Fig. 5-closed ammonia refrigerating compressor resistant to ammonia motor.
Specific embodiment
The present invention is further illustrated With reference to embodiment.Wherein, attached drawing only for illustration,
What is indicated is only schematic diagram, rather than pictorial diagram, should not be understood as the limitation to this patent；Reality in order to better illustrate the present invention
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
The present invention relates to a kind of closed ammonia refrigerating compressor resistant to ammonia motors, comprising: 1. inlets, 2. compressors, 3.
Transmission shaft, 4. liquid outlets, 5. ball bearings, 6. solenoid valves, 7. power supply lines, 8. power supply terminals, 9. rotors, 10. stators, 11 are let out
Press check valve, 12. reflux lines, 61. coils, 62. static iron cores, 63. springs, 64. dynamic iron cores, 65. valve heads, 110. cavitys,
111. gasket seal, 112. valve rods, 113. pressure springs, 114. valve core cases.
Compressor 2 and motor are arranged in same housing, have the inlet 1 for the disengaging of ammonia refrigerant on shell and go out
Liquid mouth 4, compressor 2 are sequentially connected by the rotor 9 of the transmission shaft 3 and motor that are mounted on ball bearing 5, two sides above and below transmission shaft
It is provided with solenoid valve 6, solenoid valve 6 includes coil 61, static iron core 62, spring 63, dynamic iron core 64.Solenoid valve 6 is normally closed type electromagnetism
Valve, solenoid valve 6 is just opened when being only powered.
The power supply line 7 of stator 10 is connect by power supply terminal 8 with external power supply, and power supply terminal 8 is arranged on the right side
The top of side chamber housing, the lower part of right chamber are provided with return flow line 12, pass through between return flow line 12 and right chamber
Pressure release check valve 11 connects.
Pressure release check valve 11 includes cavity 110, gasket seal 111, valve rod 112, pressure spring 113, valve core case 114, pressure spring 113
One end is connected on valve core case 114, and 113 other end of pressure spring is connected on valve rod 112, under the elastic force effect of pressure spring 113, valve rod
The gasket seal 111 of 112 upper ends setting blocks outlet, and ammonia refrigerant can not flow into return flow line 12, pressure release list from right chamber
Normally off is kept to valve 11.When the pressure in right chamber increases, the ammonia refrigerant from right chamber can be to gasket
When piece 111 applies sufficiently large downward pressure, pressure spring 113 is compressed (as shown in Figure 5), and ammonia refrigerant is flowed out from right chamber,
Approach pressure release check valve 11 and return flow line 12 flow into main pipeline.
Working principle of the invention is as follows.
Compressor on refrigerator is discontinuous operation, when closed ammonia refrigerating compressor resistant to ammonia motor enters work
When state (as Figure 2-3), the stator 10 and solenoid valve 6 of motor power on, and solenoid valve 6 is opened, and the rotor 9 of motor rotates
To drive compressor 2 to work, ammonia refrigerant flows into left chamber from inlet 1 and flows out from liquid outlet 4, due to solenoid valve 6
It opens, ammonia refrigerant can pass through gap inflow the right (as shown in Figure 3) between valve head 65 and transmission shaft 3 from the chamber on the left side
Chamber so that the stator 10 and rotor 9 of motor are immersed in ammonia refrigerant, stator 10 and rotor 9 of the ammonia refrigerant to motor
Cooling effect is played, prevents motor temperature excessively high；
Since the compressor on refrigerator is discontinuous operation, when closed ammonia refrigerating compressor resistant to ammonia motor works
After a period of time, closed ammonia refrigerating compressor resistant to ammonia motor enters shutdown status, and the stator 10 and solenoid valve 6 of motor are disconnected
Electricity, solenoid valve 6 are closed, and since solenoid valve 6 is closed, the gap between valve head 65 and transmission shaft 3 will close (as shown in Fig. 1,4),
Left and right chamber is no longer connected to.
After closed ammonia refrigerating compressor resistant to ammonia motor stopping, left and right chamber is no longer connected to.Due to motor stator and turn
Son also has surplus heat, and ammonia has effumability, and waste heat makes ammonia volatilization, and the chamber inner pressure on the right is gradually increased by force, when pressure reaches
When to critical value, ammonia refrigerant opens pressure release check valve 11, and ammonia refrigerant flow to main pipeline, the right chamber by return flow line 12
The liquid level of indoor ammonia refrigerant declines, so that power supply terminal 8 will not be immersed in in corrosive ammonia refrigerant.
In this way, since the compressor on refrigerator is discontinuous operation, when compressor is in shutdown status, closed ammonia system
The power supply terminal 8 of cold compressor resistant to ammonia motor will not be immersed in ammonia refrigerant always, delay ammonia to power supply wiring
The corrosion of terminal 8 extends the service life of power supply terminal 8.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (1)
1. a kind of closed ammonia refrigerating compressor resistant to ammonia motor, comprising: inlet, compressor, transmission shaft, liquid outlet, power supply
Line, power supply terminal, rotor, stator, which is characterized in that compressor, the rotor of transmission shaft and motor, stator are arranged same
In one shell；It further include ball bearing, solenoid valve, pressure release check valve, reflux line；
Compressor is sequentially connected by the rotor of the transmission shaft and motor that are mounted on ball bearing, and transmission shaft is provided with two sides up and down
Solenoid valve, solenoid valve include coil, static iron core, spring, dynamic iron core, and solenoid valve is normally closed solenoid valve, electromagnetism when being only powered
Valve is just opened, and left chamber is connected to right chamber；When motor rotates, solenoid valves, when motor stalls, solenoid valve is disconnected
Electricity；
The power supply line of stator is connect by power supply terminal with external power supply, and chamber housing on the right is arranged in power supply terminal
Top, the lower part of right chamber is provided with return flow line, is connected between return flow line and right chamber by pressure release check valve；
Pressure release check valve includes valve head, cavity, gasket seal, valve rod, pressure spring, valve core case, and pressure spring one end is connected on valve core case,
The pressure spring other end is connected on valve rod, and under the elastic force effect of pressure spring, the gasket seal of valve rod upper end setting blocks outlet, ammonia system
Cryogen can not flow into return flow line from right chamber, and pressure release check valve keeps normally off；When the pressure in right chamber increases
When, the ammonia refrigerant from right chamber can apply sufficiently large downward pressure to gasket seal, and pressure spring is compressed, ammonia refrigerant
It is flowed out from right chamber, approach pressure release check valve and return flow line flow into main pipeline；
After closed ammonia refrigerating compressor resistant to ammonia motor stopping, left and right chamber is no longer connected to, also due to motor stator and rotor
It has surplus heat, and ammonia has effumability, waste heat makes ammonia volatilization, and the chamber inner pressure on the right is gradually increased by force, is faced when pressure reaches
When dividing value, ammonia refrigerant opens pressure release check valve, and ammonia refrigerant flow to main pipeline, ammonia system in right chamber by return flow line
The liquid level of cryogen declines, so that power supply terminal will not be immersed in in corrosive ammonia refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711335657.3A CN108054874B (en) | 2017-12-14 | 2017-12-14 | A kind of closed ammonia refrigerating compressor resistant to ammonia motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711335657.3A CN108054874B (en) | 2017-12-14 | 2017-12-14 | A kind of closed ammonia refrigerating compressor resistant to ammonia motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108054874A CN108054874A (en) | 2018-05-18 |
| CN108054874B true CN108054874B (en) | 2019-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711335657.3A Active CN108054874B (en) | 2017-12-14 | 2017-12-14 | A kind of closed ammonia refrigerating compressor resistant to ammonia motor |
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| Country | Link |
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| CN (1) | CN108054874B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101410624A (en) * | 2006-03-24 | 2009-04-15 | 西门子公司 | Compressor unit |
| CN107294249A (en) * | 2017-08-10 | 2017-10-24 | 苏州贝得科技有限公司 | A kind of enclosed refrigeration compressor resistant to ammonia motor |
-
2017
- 2017-12-14 CN CN201711335657.3A patent/CN108054874B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101410624A (en) * | 2006-03-24 | 2009-04-15 | 西门子公司 | Compressor unit |
| CN107294249A (en) * | 2017-08-10 | 2017-10-24 | 苏州贝得科技有限公司 | A kind of enclosed refrigeration compressor resistant to ammonia motor |
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| Publication number | Publication date |
|---|---|
| CN108054874A (en) | 2018-05-18 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190912 Address after: 151900 Shihetun, Hedong Village, Liuhe Town, Mulan County, Harbin City, Heilongjiang Province Applicant after: Hu Mei Yu Address before: Wuzhong District Mudu town Tianping Village West Road Suzhou Jiangsu province 215000 City Garden Applicant before: Suzhou Longsheng automobile maintenance Co., Ltd. |
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Effective date of registration: 20200605 Address after: Room 206, Yuyuan Shopping Plaza, Suzhou High-tech Zone, Jiangsu Province Patentee after: Suzhou Sanmu Intellectual Property Service Co.,Ltd. Address before: 151900 Shihetun, Hedong Village, Liuhe Town, Mulan County, Harbin City, Heilongjiang Province Patentee before: Hu Meiyu |