CN210106171U - Exhaust structure of rotor type compressor and compressor - Google Patents
Exhaust structure of rotor type compressor and compressor Download PDFInfo
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- CN210106171U CN210106171U CN201920882488.3U CN201920882488U CN210106171U CN 210106171 U CN210106171 U CN 210106171U CN 201920882488 U CN201920882488 U CN 201920882488U CN 210106171 U CN210106171 U CN 210106171U
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Abstract
The application provides a rotor compressor's exhaust structure and compressor, wherein, rotor compressor's exhaust structure includes: a cylinder cover and a baffle plate; the baffle plate is provided with a fixing part and a limiting part tilting relative to the fixing part, an installation groove is formed in the cylinder cover, and the baffle plate is fixedly installed in the installation groove through the fixing part; wherein, spacing portion is provided with at least one and supports the ear, be provided with at least one boss on the cylinder cover, the boss is located in the mounting groove, and with support the position of ear mutually supporting. In the exhaust structure of the rotor compressor and the compressor, the three-point supporting structure is adopted to enhance the structural rigidity of the baffle, so that the modal frequency of the baffle is improved, and the problems of vibration and noise caused by the fact that the modal frequency of the baffle is excited are solved.
Description
Technical Field
The application relates to the field of refrigeration equipment, in particular to an exhaust structure of a rotor type compressor and the compressor.
Background
The exhaust valve structure of the rotary compressor is a reed valve structure and consists of an exhaust valve plate and a baffle plate. The existing exhaust valve plate mounting structure is that an exhaust valve plate and a baffle plate are mounted on a cylinder cover of a compressor to form a cylinder cover assembly, and then the cylinder cover assembly is connected with a cylinder through eccentric assembly.
The baffle is fixed at the position of the cylinder valve seat by rivets or bolts, and the fastening and connecting position of the baffle is tightly limited on the bottom plane of the baffle. The baffle generally comprises a fixed part and a bending extension section, wherein the bending extension section is of a cantilever structure, and the longer the cantilever structure of the baffle is, the lower the swing modal frequency of a first-order cantilever of the baffle is. The mode frequency is low, and the baffle is easy to be excited to vibrate and generate noise. Taking the existing compressor baffle as an example, the first-order modal frequency of the existing compressor baffle is about 1000Hz, and the baffle is impacted by airflow and is easy to generate vibration and noise due to collision of a valve plate.
Therefore, the problem that how to solve the problem that the baffle plate in the existing rotary compressor is easy to vibrate and generate noise becomes a technical problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims to provide an exhaust structure and compressor of rotor compressor has overcome prior art's difficulty, has improved the modal frequency of baffle, has improved vibration, the noise problem that the baffle arouses because of modal frequency.
According to an aspect of the present invention, there is provided an exhaust structure of a rotary compressor, the exhaust structure of the rotary compressor comprising: a cylinder cover and a baffle plate;
the baffle plate is provided with a fixing part and a limiting part tilting relative to the fixing part, an installation groove is formed in the cylinder cover, and the baffle plate is fixedly installed in the installation groove through the fixing part;
wherein, spacing portion is provided with at least one and supports the ear, be provided with at least one boss on the cylinder cover, the boss is located in the mounting groove, and with support the mutual press fit in ear's position.
Optionally, in the exhaust structure of the rotor compressor, an exhaust passage is formed in the cylinder cover, and the exhaust passage is located in the mounting groove.
Optionally, in the exhaust structure of the rotor compressor, the limit part of the baffle covers the exhaust passage.
Optionally, in the exhaust structure of the rotor compressor, the limiting portion is provided with two supporting lugs.
Optionally, in the exhaust structure of the rotary compressor, the two support lugs are arranged oppositely.
Optionally, in the exhaust structure of the rotary compressor, the two support lugs are symmetrical to each other.
Optionally, in the exhaust structure of the rotor compressor, the height of the boss is greater than the height of the limiting portion which naturally tilts.
Optionally, in the exhaust structure of the rotor compressor, the height H of the boss and the height H of the tilting of the limiting portion satisfy: H-H is more than or equal to 0.2mm and less than or equal to 0.3 mm.
According to another aspect of the present invention, there is provided a compressor including the exhaust structure of the rotary compressor as described above.
The utility model provides an among rotor compressor's exhaust structure and the compressor, adopt the structural rigidity of three point support structure reinforcing baffle, improved the modal frequency of baffle, improved vibration and noise problem that the baffle arouses because of modal frequency from this.
Drawings
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments so that the features and advantages of the present invention will be more apparent.
Fig. 1 is a schematic view of a part of the structure of the baffle plate and the cylinder cover of the embodiment of the present invention after being fixed;
fig. 2 is a schematic structural diagram of a baffle plate according to an embodiment of the present invention;
fig. 3 is a schematic view of a partial structure of a cylinder head according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an exhaust structure of a rotor compressor according to an embodiment of the present invention before and after the boss is disposed.
Detailed Description
Detailed descriptions will be given below of embodiments of the present invention. Although the invention will be described and illustrated in connection with certain specific embodiments, it should be understood that the invention is not limited to these embodiments. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the invention as defined by the appended claims.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and components have not been described in detail so as not to obscure the present invention.
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments so that the features and advantages of the present invention will be more apparent.
Please refer to fig. 1 to fig. 3, which are schematic structural diagrams of an exhaust structure of a rotor compressor according to an embodiment of the present invention. As shown in fig. 1 to 3, the discharge structure 1 of the rotary compressor includes: a cylinder head 10 and a baffle 20; the baffle 20 is provided with a fixing portion 21 and a limiting portion 22 tilted relative to the fixing portion 21, an installation groove (reference numeral is not shown in the figure) is formed in the cylinder cover 10, and the baffle 20 is fixedly installed in the installation groove through the fixing portion 21; wherein, spacing portion 22 is provided with at least one support ear 23, be provided with at least one boss 11 on the cylinder cap 10, boss 11 is located in the mounting groove, and with support ear 23's position mutually supports.
Specifically, exhaust passage 12 has been seted up on cylinder cap 10, exhaust passage 12 is located in the mounting groove, the spacing portion 22 of baffle 20 covers on exhaust passage 12, the laminating of fixed part 21 of baffle 20 is in on the bottom surface of mounting groove and through rivet or bolt with cylinder cap 10 fixed connection.
The limiting part 22 of the baffle 20 is provided with a supporting lug 23, the supporting lug 23 follows the limiting part 22 relative to the fixing part 21, the fixing part 21 is fixedly connected with the cylinder cover 10, and therefore a certain distance is reserved between the supporting lug 23 and the body of the cylinder cover 10.
Be provided with boss 11 on cylinder cap 10, boss 11 is located in the mounting groove, and the position with support ear 23 on the baffle 20 is corresponding, boss 11's bottom with cylinder cap 10's body is even as an organic whole, boss 11's top with support ear 23's bottom contact.
Please refer to fig. 4, which is a schematic structural diagram of an exhaust structure of a rotor compressor according to an embodiment of the present invention before and after a boss is disposed. As shown in fig. 4, when the boss 11 is not disposed on the cylinder head 10, the limiting portion 22 of the baffle 20 is naturally warped, and the supporting lug 23 on the limiting portion 22 is also in a naturally warped state, and when the boss 11 is disposed on the cylinder head 10, since the height H of the boss 11 is greater than the height H of the supporting lug 23 in the naturally warped state, the top of the boss 11 and the bottom of the supporting lug 23 form a press fit, that is, the boss 11 is in contact with the supporting lug 23 as a supporting point, and supports the baffle 20, and simultaneously, under the pressing action of the boss 11, the supporting lug 23 and the limiting portion 22 are both slightly warped. Preferably, the difference between the height H of the boss 11 and the height H of the support lug 23 in the natural warped state is between 0.2mm and 0.3 mm.
In this embodiment, the boss 11 and the support ears 23 each have an arcuate cross-section.
In this embodiment, two sides of the baffle 20 are provided with support lugs 23, and the two support lugs 23 are respectively located at two opposite sides and are symmetrical to each other with respect to a center line of the baffle 20. Correspondingly, two bosses 11 are arranged on the cylinder cover 10, and the positions of the two bosses 11 correspond to the positions of the two support lugs 23.
Because the height of boss 11 is greater than the natural bending degree (the perk degree) of support ear 23, baffle 20's fixed part 21 with after cylinder cap 10 fixed connection, boss 11 with support ear 23 extrusion fit, and then form three point support structure, improved baffle 20's structural rigidity, make baffle 20's modal frequency risees.
It should be noted that the number and shape of the supporting ears 23 and the bosses 11 are only for example and not limited, and those skilled in the art can set the number and shape of the supporting ears 23 and the bosses 11 according to actual needs.
In the prior art, the exhaust structure of the rotor compressor is a single-point support cantilever structure and is fixedly connected with a cylinder cover only through a fixing part of a baffle plate, so that the modal frequency of the baffle plate is low and is generally about 1000 Hz. The exhaust structure 1 of the rotor compressor provided by this embodiment is a three-point support structure, and besides the fixing portion 21 of the baffle 20, the support lug 23 on the baffle 20 and the boss 11 on the cylinder cover 10 also form two supports, so that the cantilever structure of the baffle is changed, and therefore, the fixing rigidity between the baffle 20 and the cylinder cover 10 is better, and the modal frequency of the baffle 20 is improved.
Experiments prove that by adopting the exhaust structure of the rotor compressor, the modal frequency of the baffle is increased from original 1000Hz to 4800Hz, and the problems of vibration and noise caused by excitation of the modal frequency are obviously improved.
Correspondingly, the application also provides a compressor, and the compressor comprises the exhaust structure 1 of the rotor compressor.
In conclusion, the utility model discloses a rotor compressor's exhaust structure and compressor adopt the structural rigidity of three point support structure reinforcing baffle, have improved the modal frequency of baffle, have improved vibration and noise problem that the baffle arouses because of the modal frequency from this.
The foregoing is a more detailed description of the present application in connection with specific preferred embodiments and it is not intended that the present application be limited to these specific details. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (9)
1. A gas discharge structure of a rotary compressor, comprising: a cylinder cover and a baffle plate;
the baffle plate is provided with a fixing part and a limiting part tilting relative to the fixing part, an installation groove is formed in the cylinder cover, and the baffle plate is fixedly installed in the installation groove through the fixing part;
wherein, spacing portion is provided with at least one and supports the ear, be provided with at least one boss on the cylinder cover, the boss is located in the mounting groove, and with support the position of ear mutually supporting.
2. A gas discharge structure of a rotor type compressor in accordance with claim 1, wherein a gas discharge passage is opened on said cylinder head, said gas discharge passage being located in said mounting groove.
3. A discharge structure of a rotor type compressor in accordance with claim 2, wherein said stopper of said baffle plate covers said discharge passage.
4. A discharge structure of a rotor type compressor in accordance with claim 1, wherein said spacing portion is provided with two support lugs.
5. A discharge structure of a rotor type compressor in accordance with claim 4, wherein said two support lugs are oppositely disposed.
6. A discharge structure of a rotor type compressor in accordance with claim 5, wherein said two support lugs are symmetrical with each other.
7. A gas discharge structure of a rotor type compressor in accordance with claim 1, wherein the height of the boss is greater than the height of the stopper portion which is naturally tilted.
8. An exhaust structure of a rotor type compressor according to claim 7, wherein a height H of the boss and a height H of the stopper portion tilting satisfy: H-H is more than or equal to 0.2mm and less than or equal to 0.3 mm.
9. A compressor, comprising: a discharge structure of a rotary compressor in accordance with any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920882488.3U CN210106171U (en) | 2019-06-12 | 2019-06-12 | Exhaust structure of rotor type compressor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920882488.3U CN210106171U (en) | 2019-06-12 | 2019-06-12 | Exhaust structure of rotor type compressor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106171U true CN210106171U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920882488.3U Active CN210106171U (en) | 2019-06-12 | 2019-06-12 | Exhaust structure of rotor type compressor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106171U (en) |
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2019
- 2019-06-12 CN CN201920882488.3U patent/CN210106171U/en active Active
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