CN209943101U - Compressor with a compressor housing having a plurality of compressor blades - Google Patents
Compressor with a compressor housing having a plurality of compressor blades Download PDFInfo
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- CN209943101U CN209943101U CN201920831820.3U CN201920831820U CN209943101U CN 209943101 U CN209943101 U CN 209943101U CN 201920831820 U CN201920831820 U CN 201920831820U CN 209943101 U CN209943101 U CN 209943101U
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Abstract
The application provides a compressor, includes: the device comprises a shell, a motor assembly, an auxiliary support and a pump body; the motor assembly, the auxiliary support and the pump body are all arranged in the shell, and the pump body comprises a crankshaft, a compression assembly and an intermediate plate; the crankshaft is connected between the motor assembly and the compression assembly and is used for transmitting the torque of the motor assembly to the compression assembly; the middle plate is arranged in the compression assembly and used for separating the adjacent cylinders; the auxiliary bearing is sleeved on the crankshaft and plays an auxiliary bearing role on the crankshaft; wherein, the intermediate plate and the auxiliary support are respectively provided with a welding spot, and the pump body is welded and fixed with the shell through the welding spot. In the compressor provided by the application, the welding points are arranged on the intermediate plate and the auxiliary support, so that not only can the pump body be reliably and fixedly assembled on the shell, but also the adverse effect of the welding process on the performance and reliability of the compressor can be avoided.
Description
Technical Field
The application relates to the field of refrigeration equipment, in particular to a compressor.
Background
At present, rotary compressors have been widely used in compressor devices of systems such as air conditioners, refrigerators, and cold stores. Rotary compressors generally include a housing for receiving a pump body that compresses a refrigerant by rotational motion.
With the development of the rotary compressor technology, the discharge capacity of the compressor is continuously improved, and a double-rotor compressor or even a multi-rotor compressor structure is continuously put into application. In the prior art, the fixing modes of the pump body and the shell of the double (multiple) rotor compressor mainly comprise two types: the first mode is that the upper cylinder cover and the shell are welded and fixed (welding points are arranged on the upper cylinder cover), and the second mode is that the upper cylinder and the shell are welded and fixed (welding points are arranged on the upper cylinder).
However, both of the above two fixing methods have certain disadvantages: when the welding spot is welded on the upper cylinder cover, the exhaust valve seat is arranged on the surface of the upper cylinder cover, and the exhaust valve seat is thin and is easy to deform under the influence of welding stress; when the welding spot is welded on the upper cylinder, the welding heat can cause the deformation of the cylinder blade groove. Both the deformation of the exhaust valve seat and the deformation of the vane grooves of the cylinder adversely affect the performance and reliability of the compressor.
Therefore, how to solve the problem that the performance and the reliability of the existing rotary compressor are affected when the pump body is welded and fixed 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 a compressor has overcome prior art's difficulty, not only can be reliably with the fixed assembly of the compressor pump body on the compressor, can avoid welding process to cause adverse effect to the performance and the reliability of compressor moreover, improves the anti welding deformability of the pump body.
According to an aspect of the present invention, there is provided a compressor, the compressor comprising: the device comprises a shell, a motor assembly, an auxiliary support and a pump body;
the motor assembly, the auxiliary support and the pump body are all arranged in the shell, and the pump body comprises a crankshaft, a compression assembly and an intermediate plate;
the crankshaft is connected between the motor assembly and the compression assembly and is used for transmitting the torque of the motor assembly to the compression assembly;
the middle plate is arranged in the compression assembly and used for separating adjacent cylinders;
the auxiliary support is sleeved on the crankshaft and plays an auxiliary support role for the crankshaft;
the middle plate and the auxiliary support are respectively provided with welding spots, and the pump body is welded and fixed with the shell through the welding spots.
Optionally, in the compressor, a side wall of the intermediate plate is in contact with a side wall of the casing.
Alternatively, in the compressor, a side wall of the auxiliary support is in contact with a side wall of the casing.
Optionally, in the compressor, the auxiliary bearing is disposed coaxially with the crankshaft.
Optionally, in the compressor, the motor assembly includes a stator and a rotor, and the rotor is rotatably disposed in the stator.
Optionally, the compressor further comprises a main support, wherein the main support comprises an upper bearing and a lower bearing, and the upper bearing and the lower bearing are respectively arranged at the upper end and the lower end of the compression assembly.
Optionally, in the compressor, the compression assembly includes a first cylinder and a second cylinder, and the intermediate plate is disposed between the first cylinder and the second cylinder.
Optionally, in the compressor, the compression assembly includes a first cylinder, a second cylinder and a third cylinder, and the intermediate plate is disposed between the first cylinder and the second cylinder and between the second cylinder and the third cylinder.
Optionally, in the compressor, the compressor is a rotary compressor.
The utility model provides an among the compressor, through with the solder joint setting on intermediate lamella and auxiliary bearing, not only can be reliably with pump body fixed mounting on the shell, can avoid welding process to cause adverse effect to the performance and the reliability of compressor moreover, improve the anti welding deformability of the pump body.
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 structural diagram of a compressor according to an embodiment of the present invention.
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, which is a schematic structural diagram of a compressor according to an embodiment of the present invention. As shown in fig. 1, the compressor 10 includes: the device comprises a shell 11, a motor assembly, a pump body and an auxiliary support 14; the motor assembly, the pump body and the auxiliary support 14 are all arranged in the shell 11, and the pump body comprises a crankshaft 12, a compression assembly and an intermediate plate 13; the crankshaft 12 is connected between the motor assembly and the compression assembly and is used for transmitting the torque of the motor assembly to the compression assembly; the intermediate plate 13 is provided in the compression assembly for separating adjacent cylinders; the auxiliary support 14 is sleeved on the crankshaft 12 and plays an auxiliary supporting role for the crankshaft 12; the intermediate plate 13 and the auxiliary support 14 are respectively provided with a welding spot, and the pump body is welded and fixed with the housing 11 through the welding spot.
Specifically, casing 11 includes the main casing body, goes up casing and lower casing, and the main casing body constructs into the annular tubbiness structure that all opens from top to bottom, goes up the casing and establishes the upper end opening in order to seal the main casing body in main casing body upper end, and the lower casing is established the lower extreme in order to seal the lower extreme opening of the main casing body in the main casing body, goes up casing, lower casing and main casing body and welds integratively, makes to inject relative external confined cavity in casing 11 from this.
The motor assembly is arranged above the pump body and comprises a stator and a rotor, and the rotor is rotatably arranged in the stator. The pump body includes a crankshaft 12, a compression assembly (reference numerals not shown in the drawings), and an intermediate plate 13. The compression assembly includes a cylinder assembly and a piston disposed within the cylinder assembly. The crankshaft 12 is a rod-shaped member which sequentially penetrates through the motor assembly and the compression assembly, one end of the crankshaft 12 is connected with a rotor of the motor assembly, and the other end of the crankshaft 12 extends into the cylinder assembly and is connected with the piston.
In this embodiment, the compressor 10 is a rotary compressor. When the motor assembly is powered on, the rotor rotates relative to the stator to further drive the crankshaft 12 to transmit the rotating force of the motor to the piston, and the piston performs eccentric rotating motion in the cylinder cavity so as to compress the refrigerant sucked into the cylinder cavity.
The auxiliary bearing 14 is provided at an upper end portion of the crankshaft 12, and when the crankshaft 12 is rotated at a high speed and rattles due to the deflection, the crankshaft is tilted, and at this time, an outer diameter of the upper end portion of the crankshaft 12 is in contact with an inner diameter of the auxiliary bearing 14, so that the auxiliary bearing 14 supports the crankshaft 12 to prevent the crankshaft 12 from being tilted and offset due to the rattling due to the high-speed rotation. Preferably, the auxiliary bearing 14 is arranged coaxially with the crankshaft 12.
Of course, the compressor 10 further includes a main bearing (reference numeral is not shown) including an upper bearing and a lower bearing, which are respectively disposed at upper and lower ends of the compression assembly. The auxiliary bearing 14, the main bearing and the auxiliary bearing form three bearings for the crankshaft 12, so that the bending of the crankshaft 12 during rotation, particularly during high-speed rotation, is greatly reduced, the abrasion of the crankshaft 12 is reduced, and the service life of the crankshaft 12 is prolonged.
In this embodiment, the cylinder assembly includes a first cylinder and a second cylinder, the intermediate plate 13 is disposed between the first cylinder and the second cylinder, and pistons are disposed in both the first cylinder and the second cylinder. The upper bearing is arranged on the upper end face of the first cylinder, the lower bearing is arranged on the lower end face of the second cylinder, the lower end face of the upper bearing is used for plugging the upper end opening of the first cylinder, and the upper end face of the lower bearing is used for plugging the lower end opening of the second cylinder.
In other embodiments of the present invention, the cylinder assembly includes a first cylinder, a second cylinder and a third cylinder, the intermediate plate 13 is disposed between the first cylinder and the second cylinder and between the second cylinder and the third cylinder, and a piston is disposed in each of the first cylinder, the second cylinder and the third cylinder. The upper bearing is arranged on the upper end face of the first cylinder, the lower bearing is arranged on the lower end face of the third cylinder, the lower end face of the upper bearing is used for plugging the upper end opening of the first cylinder, and the upper end face of the lower bearing is used for plugging the lower end opening of the third cylinder.
The intermediate plate 13 has a central mounting hole (reference numeral not shown) provided at a central position of the intermediate plate 13 for mounting the intermediate plate 13 to the crankshaft 12, and the crankshaft 12 passes through the central mounting hole. The middle plate 13 is further provided with assembling holes (reference numerals are not shown in the figures) for assembling with the upper and lower cylinders, the assembling holes can be positioning pin holes for supporting components passing through the positioning pin holes, and the corresponding upper and lower cylinders are also provided with positioning pin holes, so that the positioning components can fixedly connect the middle plate 13 with the upper cylinder and the lower cylinder. The fitting hole may be a screw through hole for fastening a bolt passing through the screw through hole, and the intermediate plate 13 may be fixedly connected to the upper and lower cylinders by the bolt.
With continued reference to fig. 1, the middle plate 13 and the auxiliary support 14 are each a plate-shaped structure with a certain thickness, the plate-shaped structure has an upper surface, a lower surface and a circular side wall (i.e., an outer circumferential surface) connected between the upper surface and the lower surface, the side walls (i.e., the outer circumferential surface) of the middle plate 13 and the auxiliary support 14 are directly contacted with the side wall of the housing 11 (i.e., the inner circumferential surface of the housing 11), a welding spot 15 is disposed at a contact portion between the housing 11 and the middle plate 13, the housing 11 and the middle plate 13 are connected by spot welding, a welding spot 16 is disposed at a contact portion between the housing 11 and the auxiliary support 14, and the housing 11 and the auxiliary support 14 are connected by spot. That is, the pump body is fixedly connected to the housing 11 through the welding point 15, and the auxiliary support 14 is fixedly connected to the housing 11 through the welding point 16. Thereby, both the pump body and the motor can be securely fixed to the housing 11.
The intermediate plate 13 has a larger diameter than a conventional intermediate plate, and a side wall (i.e., an outer circumferential surface) of the intermediate plate 13 can directly contact a side wall (i.e., an inner circumferential surface) of the housing 11. Therefore, the free space of the intermediate plate 13 is relatively smaller, the fixing rigidity is better, and the vibration of the compressor can be further reduced.
The intermediate plate 13 and the auxiliary bearing 14 are important supporting and fixing parts and can be formed by various methods such as integral casting, forging or combination of the integral casting, forging and pressing with casting and forging parts. In this way, a high structural rigidity and strength of the intermediate plate 13 and the auxiliary support 14 can be ensured.
The material of the intermediate plate 13 and the auxiliary support 14 may be conventional steel or steel alloy with high rigidity and strength, for example, 08-ii-Z, Q235, Q345, etc., which is not limited in this application.
In the prior art, the welding spot is arranged on the upper cylinder cover or the cylinder, and the upper cylinder cover and the cylinder are designed and manufactured due to the fact that the problems of welding and rigidity fixing need to be considered, so that the structure is complex, the size is large, the manufacturing cost is high, parts in the upper cylinder cover and the cylinder are deformed in the welding and fixing process, and adverse effects are caused on the performance and the reliability of the compressor.
In the compressor provided by the embodiment, the welding points are arranged on the middle plate 13 and the auxiliary support 14, so that the problems of welding and fixing rigidity of the upper cylinder cover and the cylinder are not considered during design and manufacture, the structure is simple, and the manufacturing cost is low. In addition, the middle plate 13 and the auxiliary support 14 are plate-shaped structures with certain thicknesses, and have stronger welding deformation resistance, the precision requirement of the middle plate 13 and the auxiliary support 14 is not high, and even if the welding deformation problem occurs, the influence on the middle plate and the auxiliary support is far smaller than that of the cylinder and the upper cylinder cover, so that the adverse influence of the welding process on the performance and the reliability of the compressor can be avoided.
In conclusion, the utility model discloses a compressor not only can be reliably with pump body fixed mounting on the shell through set up the solder joint on intermediate plate and auxiliary bearing, can avoid welding process to cause adverse effect to the performance and the reliability of compressor moreover.
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 compressor, comprising: the device comprises a shell, a motor assembly, an auxiliary support and a pump body;
the motor assembly, the auxiliary support and the pump body are all arranged in the shell, and the pump body comprises a crankshaft, a compression assembly and an intermediate plate;
the crankshaft is connected between the motor assembly and the compression assembly and is used for transmitting the torque of the motor assembly to the compression assembly;
the middle plate is arranged in the compression assembly and used for separating adjacent cylinders;
the auxiliary support is sleeved on the crankshaft and plays an auxiliary support role for the crankshaft;
the middle plate and the auxiliary support are respectively provided with welding spots, and the pump body is welded and fixed with the shell through the welding spots.
2. The compressor of claim 1, wherein the side wall of the intermediate plate is in contact with the side wall of the housing.
3. The compressor of claim 1, wherein a side wall of the auxiliary support is in contact with a side wall of the shell.
4. A compressor according to claim 3, wherein the auxiliary support is disposed coaxially with the crankshaft.
5. The compressor of claim 1, wherein the motor assembly includes a stator and a rotor, the rotor being rotatably disposed within the stator.
6. The compressor of claim 1, further comprising a main support including upper and lower bearings disposed at upper and lower ends of the compression assembly, respectively.
7. The compressor of claim 1, wherein the compression assembly includes a first cylinder and a second cylinder, the intermediate plate being disposed between the first cylinder and the second cylinder.
8. The compressor of claim 1, wherein the compression assembly includes a first cylinder, a second cylinder, and a third cylinder, and the intermediate plate is disposed between the first cylinder and the second cylinder and between the second cylinder and the third cylinder.
9. The compressor of claim 1, wherein the compressor is a rotary compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920831820.3U CN209943101U (en) | 2019-06-04 | 2019-06-04 | Compressor with a compressor housing having a plurality of compressor blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920831820.3U CN209943101U (en) | 2019-06-04 | 2019-06-04 | Compressor with a compressor housing having a plurality of compressor blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209943101U true CN209943101U (en) | 2020-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920831820.3U Active CN209943101U (en) | 2019-06-04 | 2019-06-04 | Compressor with a compressor housing having a plurality of compressor blades |
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| Country | Link |
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| CN (1) | CN209943101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017329A (en) * | 2021-11-01 | 2022-02-08 | 广东美芝制冷设备有限公司 | Compressor, refrigeration equipment and assembling method |
| CN114320916A (en) * | 2021-12-23 | 2022-04-12 | 珠海格力电器股份有限公司 | Pump body structure, compressor and air conditioner |
-
2019
- 2019-06-04 CN CN201920831820.3U patent/CN209943101U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017329A (en) * | 2021-11-01 | 2022-02-08 | 广东美芝制冷设备有限公司 | Compressor, refrigeration equipment and assembling method |
| CN114320916A (en) * | 2021-12-23 | 2022-04-12 | 珠海格力电器股份有限公司 | Pump body structure, compressor and air conditioner |
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