CN110905774B - Valve module, compressor and electrical apparatus - Google Patents
Valve module, compressor and electrical apparatus Download PDFInfo
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- CN110905774B CN110905774B CN201911264290.XA CN201911264290A CN110905774B CN 110905774 B CN110905774 B CN 110905774B CN 201911264290 A CN201911264290 A CN 201911264290A CN 110905774 B CN110905774 B CN 110905774B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
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Abstract
The present invention relates to the field of compressors. The valve component comprises a base body, a first valve plate and a second valve plate, wherein the first valve plate and the second valve plate are attached to the same side of the base body; still include the differential pressure valve, the differential pressure valve is located first valve opening, and the differential pressure valve includes the shutoff piece, and the shutoff piece can open and shut the first valve opening of shutoff. When the compressor operates in a low-frequency working condition, the pressure difference between the inner side and the outer side of the valve component is not enough to open the pressure difference valve, and the compressor only enters or exhausts air through the second valve hole; when the compressor operates in the high-frequency working condition, the pressure difference of the inner side and the outer side of the valve component is enough to open the pressure difference valve, the first valve hole is conducted at the moment, the compressor simultaneously admits air or exhausts air through the first valve hole and the second valve hole, the pressure difference valve and the first valve hole are arranged to be beneficial to enabling the total flow through sectional area of the valve hole to be matched with the air inlet requirement of the compressor, and the low-frequency performance and the high-frequency performance of the compressor are simultaneously guaranteed.
Description
Technical Field
The invention relates to the field of compressors, in particular to a valve component, a compressor and an electric appliance.
Background
In order to meet the requirement of high-efficiency operation, the existing electric appliance uses the variable frequency compressor in a large number, the variable frequency compressor needs to suck and exhaust at different working frequencies at different speeds, a compressor air suction port in the prior art cannot meet the requirement of rapid air suction when the compressor operates at high frequency, and the air suction port is low in air suction efficiency, so that the operation efficiency of the compressor is reduced.
Disclosure of Invention
One of the objects of the present invention is to provide a valve assembly adapted to the high and low frequency operation of a compressor in terms of suction and discharge efficiency.
In order to achieve the purpose, the valve component provided by the invention comprises a base body, a first valve plate and a second valve plate, wherein the first valve plate and the second valve plate are attached to the same side of the base body; still include the differential pressure valve, the differential pressure valve is located first valve opening, and the differential pressure valve includes the shutoff piece, and the shutoff piece can open and shut the first valve opening of shutoff.
Therefore, through the structural design of the valve component, when the valve component is used in a compressor and the compressor runs under a low-frequency working condition, the pressure difference between the inner side and the outer side of the valve component is not enough to open the pressure difference valve, the compressor only admits air or exhausts air through the second valve hole, and the air admission or exhaust rate of the compressor is low; when the compressor operates in a high-frequency working condition, the pressure difference between the inner side and the outer side of the valve component is large, the pressure difference is enough to open the pressure difference valve, the first valve hole is conducted at the moment, the compressor simultaneously admits air or exhausts air through the first valve hole and the second valve hole, the air admission or exhaust rate of the compressor is high, the pressure difference valve and the first valve hole are arranged to be beneficial to enabling the total flow cross-sectional area of the valve hole to be matched with the air admission or exhaust requirement of the compressor, and the low-frequency performance and the high-frequency performance of the compressor are simultaneously guaranteed.
One preferred scheme is that the valve further comprises a valve plate, and the first valve plate and the second valve plate are integrally formed on the valve plate.
Therefore, the number of parts of the valve assembly is reduced, the structure of the valve assembly is simplified, the installation process of the valve assembly is simplified, and the installation difficulty of the valve assembly is reduced.
Another preferred scheme is that the first valve hole is provided with a small hole section and a large hole section which are adjacent, the small hole section is communicated with one end of the large hole section far away from the first valve plate, and a step surface is arranged between the small hole section and the large hole section; the plugging piece is an elastic plate body, the elastic plate body is attached to the step surface, one end of the elastic plate body is fixed with the base body, the other end of the elastic plate body is a free end, and the free end of the elastic plate body covers an orifice of the small hole section, which is communicated with one end of the large hole section.
Still another preferred scheme is that the base body comprises a first main body and a second main body, the first valve hole comprises a first hole section positioned on the first main body and a second hole section positioned on the second main body, and the first valve plate covers one end, far away from the first hole section, of the second hole section; the plugging piece can be plugged at one end of the first hole section close to the second hole section in an opening and closing manner.
It is thus clear that the installation degree of difficulty of differential pressure valve is favorable to reducing in the setting of first main part and second main part.
In a further aspect, the second valve bore includes a third bore section located on the first body and a fourth bore section located on the second body.
The first main body is provided with a first hole section and a third hole section, and the first hole section is communicated with the third hole section.
The differential pressure valve further comprises an elastic piece, one end of the elastic piece abuts against the second main body, and the other end of the elastic piece abuts against the blocking piece.
Therefore, the elastic piece provides pretightening force for the differential pressure valve, and the elastic pieces with different rigidities can adjust the opening pressure difference of different differential pressure valves.
According to a further scheme, the first valve hole further comprises an installation cavity, the installation cavity is formed between the first main body and the second main body, the first hole section is communicated with the installation cavity, and the second hole section is communicated with the installation cavity; the elastic piece is fixed in the installation cavity.
From top to bottom, the installation cavity provides installation space for the elastic component to for the shutoff piece provides the activity space.
In a further scheme, the plugging piece is a sealing plug which is inserted into the hole cavity of the first hole section.
The sealing plug is characterized in that one end of the sealing plug, which faces the first main body, is provided with a conical section, and the side wall surface of the conical section is abutted against the first main body; and/or a flared opening is formed in the position, facing the orifice of the second main body, of the first hole section, and the side wall surface of the flared opening is abutted to the sealing plug.
Therefore, even if the position of the sealing plug is inclined in the movement process of opening and closing the first valve hole, the sealing plug can be guided to return to the right position under the guide of the side wall surface of the conical section or the side wall surface of the horn-shaped opening, so that the first hole section can be smoothly plugged, namely, after the first valve hole is opened and closed once, the sealing plug can smoothly plug the first hole section.
In a further embodiment, the blocking member is a sealing plate covering the opening of the first bore section near the end of the second body.
It is from top to bottom visible, the closing plate need not insert in the first hole section, even the closing plate position skew appears in the motion process of the first valve opening of switching, also can realize the shutoff to first hole section smoothly.
The invention also aims to provide a compressor which is beneficial to the air suction and exhaust efficiency and is suitable for high-low frequency operation.
In order to achieve the above object, the present invention provides a compressor including the aforementioned valve assembly.
Therefore, the valve assembly is adopted, and the arrangement of the differential pressure valve and the first valve hole is beneficial to matching the total flow cross section area of the valve hole with the air inlet requirement of the compressor, so that the low-frequency performance and the high-frequency performance of the compressor are simultaneously ensured to be excellent.
The invention also aims to provide an electric appliance with high operation efficiency of the compressor.
In order to achieve the above object, the present invention provides an electric appliance including the compressor.
Therefore, the compressor is adopted, so that the running efficiency of the compressor is high, and the efficiency of an electric appliance is improved.
Drawings
FIG. 1 is an exploded view of a first embodiment of the compressor of the present invention;
FIG. 2 is a cross-sectional view of a first embodiment of the compressor of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a cross-sectional view of a second embodiment of the valve assembly of the present invention;
FIG. 5 is a partial enlarged view at B in FIG. 4;
FIG. 6 is a cross-sectional view of a third embodiment of the valve assembly of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at C;
FIG. 8 is an exploded view of three variations of the valve assembly embodiment of the present invention;
FIG. 9 is a cross-sectional view of a third variation of the valve assembly embodiment of the present invention;
fig. 10 is a partial enlarged view at D in fig. 9.
Detailed Description
The electric appliance of this embodiment can be domestic appliances such as refrigerator, freezer, dehumidifier, and the electric appliance includes the compressor of this embodiment, takes the refrigerator as an example, and the refrigerator has quick refrigeration mode and general refrigeration mode, and the compressor operation is the high frequency operating mode when the refrigerator is with quick refrigeration mode, and the compressor operation is the low frequency operating mode when the refrigerator is with general refrigeration mode operation.
The compressor of the present embodiment includes the valve assembly of the present embodiment, and the valve assembly can be used as an exhaust valve and also can be used as a suction valve.
Valve assembly embodiment one:
referring to fig. 1 to 3, the valve assembly of the present embodiment includes a base 1, a valve plate 3 and a differential pressure valve 2, the base 1 is provided with a first valve hole a and a second valve hole b, the base 1 includes a first main body 11 and a second main body 12, the first main body 11 and the second main body 12 are plate bodies, and the first main body 11 and the second main body 12 are stacked on each other.
The first valve hole a includes a first hole section 111 located on the first main body 11, a second hole section 121 located on the second main body 12, and an installation cavity 114 formed between the first main body 11 and the second main body 12, the first hole section 111 communicates with the installation cavity 114, the second hole section 121 communicates with the installation cavity 114, the installation cavity 114 may be formed by a groove opened on the first main body 11 or a groove opened on the second main body 12, the first hole section 111 and the second hole section 121 are distributed in a staggered manner, and the second valve hole b includes a third hole section 112 located on the first main body 11 and a fourth hole section 122 located on the second main body 12.
The valve plate 3 is formed with a first valve plate 31 and a second valve plate 32 by punching to remove material, the valve plate 3 is attached and fixed on one main surface of the second main body 12 facing away from the first main body 11, the free end of the first valve plate 31 covers the first valve hole a, and the free end of the second valve plate 32 covers the second valve hole b.
The differential pressure valve 2 comprises a plugging piece and an elastic piece, the elastic piece is a spiral pressure spring 21, the plugging piece is a cylindrical sealing plug 22, the first hole section 111 is a round hole, the central axis of the first hole section 111 coincides with the central axis of the sealing plug 22, an installation column 123 protrudes out of the installation cavity 114 on the second main body 12, the installation column 123 is opposite to the first hole section 111 along the central axis direction of the first hole section 111, one end of the spiral pressure spring 21 is fixedly sleeved on the installation column 123, and the other end of the spiral pressure spring 21 is fixedly sleeved on the sealing plug 22.
Preferably, the sealing plug 22 has a large-diameter section 221, a small-diameter section 222 and a retaining structure 223 connected in sequence, the helical compression spring 21 is sleeved on the sealing plug 22 from one end of the retaining structure 223, the helical compression spring 21 is sleeved on the small-diameter section 222 and abutted to a step between the small-diameter section 222 and the large-diameter section 221, and the retaining structure 223 is clamped between two adjacent turns of the helical compression spring 21. Therefore, the spiral pressure spring 21 and the sealing plug 22 are firmly fixed, and the sealing plug 22 is prevented from falling off from the spiral pressure spring 21. More preferably, the anti-release structure 223 is in a frustum shape, and a large end of the frustum of the anti-release structure 223 is adjacent to the small-diameter section 222, so that the helical compression spring 21 can be smoothly sleeved to the small-diameter section 222 through the anti-release structure 223, and difficulty in sleeving the helical compression spring 21 to the sealing plug 22 can be reduced.
When the compressor operates in a low-frequency working condition, the pressure difference between the inner side and the outer side of the valve component is not enough to overcome the pressure of the spiral pressure spring 21, and the compressor only enters air through the second valve hole b; when the compressor operates in a high-frequency working condition, the pressure difference between the inner side and the outer side of the valve component reaches the opening threshold value of the pressure difference valve, the external air pressure overcomes the pressure of the spiral pressure spring 21 to push the sealing plug 22 out of the first hole section 111, at the moment, the first hole section 111 and the mounting cavity 114 are conducted to the second hole section 121, the compressor admits air through the first valve hole a and the second valve hole b, the pressure difference valve 2 and the first valve hole a are arranged to facilitate the total flow of the valve holes to be matched with the air admission requirement of the compressor through the sectional area, and the low-frequency performance and the high-frequency performance of the compressor are guaranteed simultaneously.
Preferably, one end of the first hole section 111, which is communicated with the mounting cavity 114, has a trumpet-shaped opening, a side wall surface of the trumpet-shaped opening is a first annular inclined surface 1111, and the sealing plug 22 abuts against the side wall of the trumpet-shaped opening, so that even if the sealing plug 22 has a position deviation in the movement process of opening and closing the first valve hole a, the sealing plug 22 can return to the original position under the guidance of the first annular inclined surface 1111, and further successfully realize the plugging of the first hole section 111, that is, after the first valve hole a is opened and closed once, the sealing plug 22 can smoothly abut against the side wall surface of the trumpet-shaped opening, and can smoothly realize the plugging of the first hole section 111. Similarly, a chamfer may be formed around the sealing plug 22 at one end of the sealing plug 22 close to the first body 11, the chamfer may make the sealing plug 22 in a frustum shape at the end close to the first body 11, a side wall surface of the frustum is a second annular inclined surface, a small end of the frustum is inserted into the first hole section 111, and the side wall surface of the frustum abuts against a hole opening of the first hole section 111 at one end close to the mounting cavity 114. This is also advantageous for the sealing plug 22 to smoothly close the first valve hole section 111 after the first valve hole a is opened and closed once.
Preferably, a first channel 113 is opened on a side of the first body 11 facing away from the second body 12, and the first channel 113 communicates the first hole section 111 and the third hole section 121. In order to reduce the diffusion of the operation noise of the compressor, it is necessary to install a silencer at the suction port of the compressor, and the first channel 113 is used to connect the first hole section 111 with the third hole section 121, so that when the silencer is installed, the silencer with a small diameter can be selected to cover the third hole section 121, and the outer side of the first hole section 111 is sealed, and the first hole opening a is supplied with airflow through the first channel 113, which is beneficial to the miniaturization of the silencer.
Valve assembly embodiment two:
referring to fig. 4 and 5, in the valve assembly of the present embodiment, the sealing plate 23 is used as the blocking member instead of the sealing plug 22 in the first embodiment, the differential pressure valve 2 includes the sealing plate 23 and the helical compression spring 21, a main surface of the sealing plate 23 facing the mounting cavity 114 is connected to the helical compression spring 21, and a main surface of the sealing plate 23 facing the first hole section 111 abuts against the first main body 11 and covers the hole of the first hole section 111 that communicates with one end of the mounting cavity 114. Since the sealing plate 23 blocks the first hole section 111 by abutting against the orifice of the first hole section 111, the sealing plate 23 is not inserted into the first hole section 111, and even if the sealing plate 23 is positionally deviated during the movement of opening and closing the first valve hole a, the blocking of the first hole section 111 can be smoothly performed.
Of course, the first hole section 111 need not be provided with a trumpet-shaped opening in this embodiment.
Preferably, a sealing gasket is arranged on the main surface of the sealing plate 23 facing the first hole section 111, and the sealing gasket is abutted with the first main body 11, so that the sealing performance of the sealing plate 23 for sealing the first hole section 111 is improved; alternatively, a sealing gasket may be disposed between the sealing plate 23 and the first body 11, and the sealing gasket may be fixed on the sealing plate 23 or the first body 11, and the sealing gasket surrounds the opening of the first hole section 111, so as to improve the sealing performance of the sealing plate 23 for sealing the first hole section 111.
The rest of the present embodiment is the same as the first embodiment.
Valve assembly embodiment three:
referring to fig. 6 and 7, in the valve assembly of the present embodiment, the differential pressure valve 2 only includes the elastic plate body 24, the elastic plate body 24 has both the blocking function of the blocking piece and the pre-tightening function of the elastic piece, one end of the first hole section 111 close to the second main body 12 has a hole end surface, the elastic plate body 24 is attached to the hole end surface, one end of the elastic plate body 24 is fixed to the first main body 11, the other end of the elastic plate body 24 covers the orifice of the first hole section 111 close to one end of the second main body 12, and the arrangement of the elastic plate body 24 may refer to the arrangement of the valve plate in the prior art. The elastic plate body 24 covers and blocks the orifice of the first orifice section 111 close to one end of the second main body 12 under the action of the elastic pretightening force of the elastic plate body, when the compressor operates in a high-frequency working condition, the pressure difference between the inner side and the outer side of the valve assembly is large, the air pressure can overcome the elastic pretightening force of the elastic plate body 24, and the elastic plate body 24 is flushed away from the orifice of the second main body 12 by the air pressure, so that the opening of the first valve hole a is realized.
Specifically, a main surface of the second body 12 facing away from the first body 11 is provided with a first sealing ring 4 and a second sealing ring, the first sealing ring 4 is disposed around the second hole section 121, the second sealing ring is disposed around the fourth hole section 122, the first sealing ring 4 is squeezed between the first valve plate 31 and the second body 12, and the second sealing ring is squeezed between the second valve plate 32 and the second body 12.
Of course, the first hole section 111 of the present embodiment does not need to be provided with a trumpet-shaped opening.
Preferably, in this embodiment, the base 1 is a single plate, the first valve hole a is a stepped hole, the first valve hole a includes a small hole section and a large hole section, a stepped surface is formed between the small hole section and the large hole section, the first valve sheet 31 covers an orifice of the large hole section, the elastic plate 24 is attached and fixed to the stepped surface between the small hole section and the large hole section, and the elastic plate 24 covers an orifice of the small hole section near one end of the large hole section. The structure of the single plate body is beneficial to the structural simplicity of the valve component.
Alternatively, referring to fig. 8 to 10, the differential pressure valve 2 of the present embodiment includes a helical compression spring 21 and an elastic plate body 25, one end of the helical compression spring 21 is fixed to the mounting post 123, and the other end of the helical compression spring 21 is fixed to a main surface of the elastic plate body 25 on a side facing away from the first hole section 111.
The rest of the present embodiment is the same as the first embodiment.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the invention are possible to those skilled in the art, without departing from the spirit and scope of the invention.
Claims (12)
1. The valve component comprises a base body, a first valve plate and a second valve plate, wherein the first valve plate and the second valve plate are attached to the same side of the base body;
the method is characterized in that:
the pressure difference valve is arranged in the first valve hole and comprises a plugging piece, and the plugging piece can plug the first valve hole in an opening and closing manner;
the valve plate is characterized by further comprising a valve plate, and the first valve plate and the second valve plate are integrally formed on the valve plate.
2. The valve assembly of claim 1, wherein:
the first valve hole is provided with a small hole section and a large hole section which are adjacent, the small hole section is communicated with one end of the large hole section far away from the first valve plate, and a step surface is arranged between the small hole section and the large hole section;
the plugging piece is an elastic plate body, the elastic plate body is attached to the step surface, one end of the elastic plate body is fixed with the base body, the other end of the elastic plate body is a free end, and the free end of the elastic plate body covers the orifice communicated with the small hole section and one end of the large hole section.
3. The valve assembly of claim 1, wherein:
the base body comprises a first main body and a second main body, the first valve hole comprises a first hole section positioned on the first main body and a second hole section positioned on the second main body, and the first valve plate covers one end, far away from the first hole section, of the second hole section;
the plugging piece can be plugged at one end of the first hole section close to the second hole section in an opening and closing manner.
4. The valve assembly of claim 3, wherein:
the second valve bore includes a third bore section on the first body and a fourth bore section on the second body.
5. The valve assembly of claim 4, wherein:
a first channel is formed in one side, back to the second main body, of the first main body, and the first channel is communicated with the first hole section and the third hole section.
6. A valve assembly according to any one of claims 3 to 5, wherein:
the differential pressure valve further comprises an elastic piece, one end of the elastic piece abuts against the second main body, and the other end of the elastic piece abuts against the blocking piece.
7. The valve assembly of claim 6, wherein:
the first valve hole further comprises an installation cavity, the installation cavity is formed between the first main body and the second main body, the first hole section is communicated with the installation cavity, and the second hole section is communicated with the installation cavity;
the elastic piece is fixed in the installation cavity.
8. The valve assembly of claim 6, wherein:
the blocking piece is a sealing plug which is inserted into the hole cavity of the first hole section.
9. The valve assembly of claim 8, wherein:
one end, facing the first main body, of the sealing plug is provided with a conical section, and the side wall surface of the conical section is abutted to the first main body; and/or a flared opening is formed in the position, facing the orifice of the second main body, of the first hole section, and the side wall surface of the flared opening is abutted to the sealing plug.
10. The valve assembly of claim 6, wherein:
the blocking piece is a sealing plate which covers the orifice of the first hole section close to one end of the second body.
11. A compressor, characterized by:
comprising a valve assembly according to any one of claims 1 to 10.
12. An electrical appliance, characterized by:
comprising a compressor as claimed in claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911264290.XA CN110905774B (en) | 2019-12-11 | 2019-12-11 | Valve module, compressor and electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911264290.XA CN110905774B (en) | 2019-12-11 | 2019-12-11 | Valve module, compressor and electrical apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110905774A CN110905774A (en) | 2020-03-24 |
| CN110905774B true CN110905774B (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911264290.XA Active CN110905774B (en) | 2019-12-11 | 2019-12-11 | Valve module, compressor and electrical apparatus |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022080522A (en) * | 2020-11-18 | 2022-05-30 | ナブテスコ株式会社 | Air compression device and air absorption device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08319973A (en) * | 1995-05-26 | 1996-12-03 | Hitachi Ltd | Compressor and delivery valve device therefor |
| CN1248678A (en) * | 1998-09-24 | 2000-03-29 | 三菱电机株式会社 | Spiral type compressor |
| JP2000161260A (en) * | 1998-11-20 | 2000-06-13 | Fujitsu General Ltd | Scroll compressor |
| CN105179209A (en) * | 2015-10-26 | 2015-12-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Vent valve assembly and compressor with same |
| CN106837746A (en) * | 2017-02-07 | 2017-06-13 | 广州万宝集团压缩机有限公司 | A kind of plate member |
| CN206555128U (en) * | 2017-02-23 | 2017-10-13 | 安徽健丰节能技术有限公司 | A kind of double suction gas port compressor |
-
2019
- 2019-12-11 CN CN201911264290.XA patent/CN110905774B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08319973A (en) * | 1995-05-26 | 1996-12-03 | Hitachi Ltd | Compressor and delivery valve device therefor |
| CN1248678A (en) * | 1998-09-24 | 2000-03-29 | 三菱电机株式会社 | Spiral type compressor |
| JP2000161260A (en) * | 1998-11-20 | 2000-06-13 | Fujitsu General Ltd | Scroll compressor |
| CN105179209A (en) * | 2015-10-26 | 2015-12-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Vent valve assembly and compressor with same |
| CN106837746A (en) * | 2017-02-07 | 2017-06-13 | 广州万宝集团压缩机有限公司 | A kind of plate member |
| CN206555128U (en) * | 2017-02-23 | 2017-10-13 | 安徽健丰节能技术有限公司 | A kind of double suction gas port compressor |
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| CN110905774A (en) | 2020-03-24 |
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