CN217873278U - Compressor and refrigeration plant - Google Patents
Compressor and refrigeration plant Download PDFInfo
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- CN217873278U CN217873278U CN202222052740.2U CN202222052740U CN217873278U CN 217873278 U CN217873278 U CN 217873278U CN 202222052740 U CN202222052740 U CN 202222052740U CN 217873278 U CN217873278 U CN 217873278U
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Abstract
The technical scheme of the utility model is that a compressor and refrigeration equipment are provided, the compressor comprises a compressor body, a variable volume device and a liquid storage device, the compressor body comprises a first cylinder and a second cylinder, the first cylinder is provided with a first compression cavity, and the second cylinder is provided with a second compression cavity; the variable-volume device is communicated with the first compression cavity; the liquid storage device is installed at the bottom of the compressor body and communicated with the second compression cavity. The technical scheme of the utility model provide a compressor, compressor include compressor body, varactor device and reservoir. The radial size of the compressor is reduced by mounting the accumulator at the bottom of the compressor body.
Description
Technical Field
The utility model relates to a refrigeration plant technical field, in particular to compressor and refrigeration plant.
Background
The existing variable capacity technology changes the basic displacement of the compressor, so that the compressor can work under the partial capacity under the low-load working condition and work under the full capacity under the heavy-load working condition, and the energy efficiency of the compressor is improved.
The main variable volume modes of multi-cylinder variable volume mainly include two modes, namely air suction pressure switching (pressure switching in a compression cavity) and pressure switching at the back of a sliding sheet. Because the pressure switching needs to set a pressure control pipeline outside the compressor and needs a three-way or four-way valve, the whole variable volume device has a complex structure and a large volume.
On the other hand, the liquid storage device of the compressor is generally arranged on the side surface, and the installation space (radial size) of the variable capacity device structure is further influenced, so that the existing variable capacity compressor is only suitable for an air conditioner box body with a larger volume.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide a compressor, which aims to reduce the radial dimension of the compressor.
The utility model discloses technical scheme is through providing a compressor, the compressor includes:
the compressor comprises a compressor body, wherein the compressor body comprises a first air cylinder and a second air cylinder, the first air cylinder is provided with a first compression cavity, the second air cylinder is provided with a second compression cavity, and the first compression cavity is communicated with the second compression cavity;
the variable-volume device is communicated with the first compression cavity;
the liquid storage device is arranged at the bottom of the compressor body and communicated with the second compression cavity.
In an embodiment, the compressor body further includes a partition plate disposed between the first cylinder and the second cylinder, and the partition plate is provided with a vent hole communicating the first compression chamber and the second compression chamber.
In one embodiment, the compressor body is provided with an air suction port, the air suction port is arranged on the outer wall of the partition plate, and the air suction port is communicated with the air vent and the liquid storage device.
In an embodiment, the compressor body is provided with an air suction port, the air suction port is arranged on the outer wall of the second cylinder, and the air suction port is communicated with the second compression cavity and the liquid storage device.
In one embodiment, the reservoir communicates with the second compression chamber through a connecting tube.
In one embodiment, the variable-capacity device comprises a pressure switching valve and a pressure conveying pipe, one end of the pressure conveying pipe is connected with the pressure switching valve, and the other end of the pressure conveying pipe is communicated with the first compression cavity; the variable volume device further comprises a first pipeline and a second pipeline, the first pipeline is connected with the interior of the compressor body and the pressure switching valve, and the second pipeline is connected with the liquid storage device and the pressure switching valve.
In one embodiment, the compressor body further comprises a first bearing and a second bearing, the first cylinder is arranged between the first bearing and the partition plate and connects the first bearing and the partition plate, and an outer ring of the first bearing is connected with an inner wall of the compressor body; the second cylinder is arranged between the second bearing and the partition plate and is connected with the second bearing and the partition plate; the compressor body further includes a crankshaft passing through and connecting inner rings of the first and second bearings.
In an embodiment, the compressor body further comprises a motor, and the motor is connected with the crankshaft.
In an embodiment, the compressor further includes a housing, the compressor body and the liquid reservoir are mounted inside the housing, a gas outlet is formed in the top of the housing, and the gas outlet is communicated with the first compression chamber and the second compression chamber.
The utility model also provides a refrigeration plant, refrigeration plant includes the compressor, the compressor includes:
the compressor comprises a compressor body, wherein the compressor body comprises a first air cylinder and a second air cylinder, the first air cylinder is provided with a first compression cavity, the second air cylinder is provided with a second compression cavity, and the first compression cavity is communicated with the second compression cavity;
the variable-volume device is communicated with the first compression cavity;
the liquid storage device is arranged at the bottom of the compressor body and communicated with the second compression cavity.
The technical scheme of the utility model provide a compressor, compressor include compressor body, varactor device and reservoir. The radial size of the compressor is reduced by installing the liquid accumulator at the bottom of the compressor body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of a compressor;
fig. 2 is a cross-sectional view taken at a in fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name(s) |
| 10 | |
210 | First bearing |
| 100 | |
220 | |
| 110 | |
230 | |
| 200 | |
240 | |
| 300 | |
250 | Second bearing |
| 400 | |
260 | |
| 410 | |
270 | |
| 500 | Connecting |
280 | |
| 310 | |
221 | |
| 320 | |
231 | |
| 330 | |
241 | |
| 340 | The second pipeline |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear \8230;) are involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the attached drawings), the motion situation, etc., and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "a and/or B" as an example, including either the a aspect, or the B aspect, or both the a and B aspects. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
With the development of economy and the progress of society, the living standard of people is gradually improved, and more large-sized living rooms and villas are bought, so that the central air conditioner is produced at the same time. In general households, many central air conditioners are multi-split air conditioners, i.e., one outdoor unit drags several indoor units. Because the system load changes with the different opening and closing quantity of the indoor units, the flow of the refrigerant needs to be reduced when the cold and heat quantity is small, and the flow of the refrigerant needs to be increased when the cold and heat quantity is large. By adopting the common compressor, if the requirement of large cold and heat quantity is met, excessive refrigerants are caused when the requirement of small cold and heat quantity is met, unnecessary power consumption is increased, and the energy efficiency of the compressor is reduced; if the requirement of small cold and heat quantity is met, enough refrigerant cannot be provided or the operation frequency is high when the requirement of large cold and heat quantity is met, so that the reliability of the compressor is reduced. Therefore, in order to meet the requirements, the variable capacity compressor is produced in an on-going manner, and a single-cylinder mode is adopted when the load factor is low, and a double-cylinder mode is adopted when the load factor is high.
The existing variable capacity technology changes the basic displacement of the compressor, so that the compressor can work under the low-load working condition in a partial capacity mode and work under the heavy-load working condition in a full capacity mode, and the energy efficiency of the compressor is improved. The main variable volume modes of multi-cylinder variable volume mainly include two modes, namely air suction pressure switching (pressure switching in a compression cavity) and pressure switching at the back of a sliding sheet. Because pressure switching needs to set up the accuse pipeline in the compressor outside, and needs tee bend or cross valve, whole varactor structure is complicated, and is bulky. On the other hand, the liquid storage device of the compressor is generally arranged on the side surface, and the installation space (radial size) of the variable capacity device structure is further influenced, so that the existing variable capacity compressor is only suitable for an air conditioner box body with a larger volume.
Therefore, the technical scheme of the utility model provide a compressor, compressor include compressor body, varactor device and reservoir. The radial size of the compressor is reduced by installing the liquid accumulator at the bottom of the compressor body.
Referring to fig. 1 and 2, the present invention provides a compressor 10, the compressor 10 includes a compressor body 200, a capacity-changing device 300 and a liquid reservoir 400, the compressor body 200 includes a first cylinder 220 and a second cylinder 240, the first cylinder 220 is provided with a first compression cavity 221, the second cylinder 240 is provided with a second compression cavity 241, the first compression cavity 221 is communicated with the second compression cavity 241; the variable-volume device 300 is communicated with the first compression chamber 221; the accumulator 400 is installed at the bottom of the compressor body 200 and communicates with the second compression chamber 241.
Specifically, the compressor 10 includes a compressor body 200, a variable displacement device 300 and a liquid accumulator 400, wherein the compressor body 200 includes a first cylinder 220, and the first cylinder 220 is provided with a first compression chamber 221; the compressor body 200 further includes a second cylinder 240, the second cylinder 240 is provided with a second compression chamber 241, and the first compression chamber 221 is communicated with the second compression chamber 241. The second compression chamber 241 is communicated with the accumulator 400, and the accumulator 400 supplies the refrigerant to the second compression chamber 241, and the refrigerant is branched into the first compression chamber 221 since the second compression chamber 241 is communicated with the accumulator 400.
The first cylinder 220 is a variable displacement cylinder and the second cylinder 240 is a constant motion cylinder. When the compressor 10 is operated, the second cylinder 240 is always maintained in an operation state and continuously compresses the refrigerant. While the first cylinder 220 is controlled by the capacitance-varying device 300 to have a loaded state and an unloaded state, respectively. When the first cylinder 220 is in a load state, the compressor 10 operates with two cylinders, i.e., the first cylinder 220 and the second cylinder 240 compress the refrigerant at the same time. When the first cylinder 220 is in the unloaded state, the compressor 10 operates with a single cylinder, i.e., only the second cylinder 240 compresses the refrigerant, and the first cylinder 220 does not compress the refrigerant. The variable displacement device 300 is used for switching the load state and the no-load state of the first cylinder 220 to realize the switching between the double-cylinder operation and the single-cylinder operation of the compressor 10.
When the compressor 10 is in a load state, the first cylinder 220 and the second cylinder 240 compress the refrigerant at the same time, and the compressor 10 operates for two cylinders. The first cylinder 220 and the second cylinder 240 may be connected in parallel, the first cylinder 220 and the second cylinder 240 operate independently, the accumulator 400 provides refrigerant to the second cylinder 240, the refrigerant is branched into the first cylinder 220, and the first cylinder 220 and the second cylinder 240 compress the refrigerant respectively. Of course, the first cylinder 220 and the second cylinder 240 may be connected in series, and a communication pipe is provided between the first compression chamber 221 and the second compression chamber 241, so that the gas discharged from the first compression chamber 221 continues to enter the second compression chamber 241 for compression again. Alternatively, the first compression chamber 221 is connected to the second compression chamber 241 through a heat exchanger, and is compressed again, which is not limited herein.
The accumulator 400 is installed at the bottom of the compressor body 200, and the accumulator 400 may be vertical or horizontal at the bottom of the compressor body 200. By installing the accumulator 400 at the bottom of the compressor body 200, the space occupied by the compressor body 200 in the circumferential direction is reduced, and the radial size of the compressor 10 is reduced, thereby reducing the occupied space of the air conditioner case.
In an embodiment, the compressor body 200 further includes a partition 230, the partition 230 is disposed between the first cylinder 220 and the second cylinder 240, the partition 230 is provided with a vent 231, and the vent 231 communicates the first compression chamber 221 and the second compression chamber 241.
Referring to fig. 2, the diaphragm 230 is disposed between the first cylinder 220 and the second cylinder 240, and one side surface of the diaphragm 230 is connected to the first cylinder 220, the other side surface of the diaphragm 230 is connected to the second cylinder 240, and the diaphragm 230 separates the first compression chamber 221 from the second compression chamber 241. The partition 230 is provided with a vent 231, and the vent 231 is communicated with the first compression chamber 221 and the second compression chamber 241. After the refrigerant in the accumulator 400 enters the second compression chamber 241, a part of the refrigerant remains in the second compression chamber 241, and the other part of the refrigerant enters the first compression chamber 221 through the air vent 231.
In one embodiment, the compressor body 200 is provided with a suction port 260, the suction port 260 is provided on the outer wall of the partition plate 230, and the suction port 260 communicates the air vent 231 with the accumulator 400.
Referring to fig. 2, the compressor body 200 is provided with a suction port 260, the suction port 260 is disposed on an outer wall of the partition plate 230, and the suction port 260 is respectively communicated with the air vent 231 and the reservoir 400. In contrast, when the air vent 231 communicates with the first compression chamber 221 and the second compression chamber 241, the first compression chamber 221 communicates with the receiver 400 through the air vent 231 and the suction port 260, and the refrigerant in the receiver 400 passes through the suction port 260, then finally enters the first compression chamber 221 through the air vent 231, and is compressed. Similarly, the second compression chamber 241 communicates with the accumulator 400 through the air inlet 231 and the air inlet 260, and the refrigerant in the accumulator 400 passes through the air inlet 260, then enters the second compression chamber 241 through the air inlet 231, and is compressed.
In another embodiment, the compressor body 200 is provided with a suction port 260, the suction port 260 is provided on the outer wall of the second cylinder 240, and the suction port 260 communicates the second compression chamber 241 and the accumulator 400.
Referring to fig. 1, the compressor body 200 is provided with an air inlet 260, the air inlet 260 may also be disposed on an outer wall of the second cylinder 240, and the air inlet 260 is respectively communicated with the second compression chamber 241 and the accumulator 400. The refrigerant in the accumulator 400 directly enters the second compression chamber 241 through the suction port 260, and a part of the refrigerant remains in the second compression chamber 241, so that the second compression chamber 241 compresses the refrigerant. Since the first compression chamber 221 communicates with the second compression chamber 241, another portion of the refrigerant flows into the first compression chamber 221, and the first compression chamber 221 compresses the refrigerant. Of course, the refrigerant may enter the first compression chamber 221 from the second compression chamber 241 through the air vent 231 of the partition plate 230, and the first compression chamber 221 compresses the refrigerant.
In one embodiment, the accumulator 400 communicates with the second compression chamber 241 through the connection pipe 500.
Referring to fig. 1, the compressor 10 further includes a connection pipe 500, and the connection pipe 500 may be a metal pipe or a hose. One end of the connection pipe 500 is connected to the reservoir 400 and is communicated with the cavity inside the reservoir 400, and the other end is communicated with the suction port 260. The connection pipe 500 may be connected to an outer wall of the second cylinder 240 according to a position where the inlet port 260 is opened, and the connection pipe 500 communicates with the second compression chamber 241. Alternatively, the connection pipe 500 may be connected to the outer wall of the partition 230, and the connection pipe 500 may communicate with the air vent 231. The accumulator 400 is provided with a suction port 410, refrigerant can enter an inner chamber of the accumulator 400 from the suction port 410, and liquid refrigerant is stored at the bottom of the inner chamber of the accumulator 400, preventing the liquid refrigerant from flowing into the first compression chamber 221 or the second compression chamber 241 to generate liquid slugging. The gas refrigerant is introduced from the accumulator 400 into the first compression chamber 221 or the second compression chamber 241 through the connection pipe 500 to be gas-compressed.
In one embodiment, the variable-displacement apparatus 300 includes a pressure switching valve 310 and a pressure delivery pipe 320, one end of the pressure delivery pipe 320 is connected to the pressure switching valve 310, and the other end thereof is communicated with the first compression chamber 221; the variable-volume device 300 further includes a first pipe line 330 and a second pipe line 340, the first pipe line 330 connects the inside of the compressor body 200 and the pressure switching valve 310, and the second pipe line 340 connects the accumulator 400 and the pressure switching valve 310.
Referring to fig. 1, when the high pressure gas compressed by the first and second cylinders 220 and 240 is discharged from the first and second cylinders 220 and 240 into the inner cavity of the compressor body 200, the internal pressure of the compressor body 200 is on the high pressure side. A second sliding vane (not shown) is disposed in the second cylinder 240, and a compression spring (not shown) for pushing the second sliding vane is connected to the back of the second sliding vane. When the compressor 10 is started, the movement of the second sliding vane is provided by the elastic force of the compression spring, and the second sliding vane is pushed to move by the high pressure in the sliding vane groove and the compression spring together after the compressor 10 is started. The first cylinder 220 is also provided with a first sliding vane (not shown), the back of the first sliding vane is not provided with a spring for pushing the first sliding vane to move, the first sliding vane forms a closed sliding vane chamber (not shown), the sliding vane chamber is connected with a pressure conveying pipe 320, and the other end of the pressure conveying pipe 320 is connected with the pressure switching valve 310. The variable-capacity device 300 further includes a first pipe line 330, the first pipe line 330 connects the inside of the compressor body 200 and the pressure switching valve 310, and the pressure switching valve 310 can supply the high pressure Pd in the inner cavity of the compressor body 200 to the pressure delivery pipe 320. The variable-displacement apparatus 300 further comprises a second line 340, the second line 340 connecting the reservoir 400 and the pressure switching valve 310. The pressure switching valve 310 may supply the suction low pressure Ps in the accumulator 400 to the pressure delivery pipe 320. And the pressure switching valve 310 may switch the high pressure Pd in the inner chamber of the compressor body 200 and the suction low pressure Ps in the accumulator 400 and supply them to the pressure delivery pipe 320. When the pressure in the pressure conveying pipe 320 is high pressure Pd, the first sliding vane normally moves and works, and the first cylinder 220 has compression and exhaust; when the pressure in the pressure delivery pipe 320 is low pressure Ps, the first sliding vane stops in the sliding vane slot, and the first cylinder 220 is not compressed and has no exhaust. The first cylinder 220 is switched between the discharge and non-discharge, and the compressor 10 changes the discharge capacity, so that the capacity-changing function is realized. The pressure switching valve 310 can control whether the pressure in the pressure delivery pipe 320 is high pressure Pd or low pressure Ps in the pressure delivery pipe 320, when the pressure in the pressure delivery pipe 320 is high pressure Pd, the first cylinder 220 is loaded, and the compressor 10 operates in double cylinders; when the pressure in the force-feed pipe 320 is low Ps, the first cylinder 220 is unloaded and the compressor 10 operates with a single cylinder.
In an embodiment, the compressor body 200 further includes a first bearing 210 and a second bearing 250, the first cylinder 220 is disposed between the first bearing 210 and the partition plate 230 and connects the first bearing 210 and the partition plate 230, and an outer race of the first bearing 210 is connected with an inner wall of the compressor body 200; the second cylinder 240 is disposed between the second bearing 250 and the partition 230, and connects the second bearing 250 and the partition 230; the compressor body 200 further includes a crankshaft 270, and the crankshaft 270 passes through and connects the inner races of the first and second bearings 210 and 250.
Referring to fig. 1, the compressor body 200 further includes a first bearing 210, an outer wall of an outer ring of the first bearing 210 is connected to an inner wall of the compressor body 200, and the first bearing 210 is fixed to the compressor body 200. The first cylinder 220 is disposed between the first bearing 210 and the partition plate 230, an outer wall of the first cylinder 220 is connected to an outer race of the first bearing 210, and the first bearing 210, the first cylinder 220, and the partition plate 230 are fixedly connected. The compressor 10 further includes a second bearing 250, the second cylinder 240 is disposed between the partition 230 and the second bearing 250, and an outer wall of the second cylinder 240 is connected to an outer race of the second bearing 250. The second bearing 250 and thus the first bearing 210 are fixedly connected. The compressor 10 comprises the following components in sequence from top to bottom: a first bearing 210, a first cylinder 220, a diaphragm 230, a second cylinder 240, and a second bearing 250. The compressor 10 further includes a crankshaft 270, the crankshaft 270 sequentially passes through the first bearing 210, the first cylinder 220, the partition 230, the second cylinder 240, and the second bearing 250, the crankshaft 270 is respectively connected to inner rings of the first bearing 210 and the second bearing 250, and the first bearing 210 and the second bearing 250 support the crankshaft 270. The crankshaft 270 has a long axis portion, an eccentric portion, and a short axis portion, and the crankshaft 270 transmits the rotational force of the motor 280 to the upper rotary piston in the first cylinder 220 and the lower rotary piston in the second cylinder 240, respectively, and drives the two rotary pistons to rotate to compress the refrigerant.
In one embodiment, the compressor body 200 further includes a motor 280, and the motor 280 is coupled to the crankshaft 270.
Referring to fig. 1, the compressor body 200 further includes a motor 280, and the crankshaft 270 is connected to the motor 280. The motor 280 includes a stator and a rotor disposed within the stator, wherein the rotor is capable of driving the crankshaft 270 to rotate together when rotating relative to the stator. Specifically, the stator of the motor 280 is fixed to the inner wall of the compressor body 200, the rotor of the motor 280 is sleeved on the crankshaft 270, and the rotor is clasped by cold pressing and drives the crankshaft 270, but not limited thereto. The rotor rotates with respect to the stator so as to transmit the rotational force of the motor 280 to the upper rotary piston in the first cylinder 220 and the lower rotary piston in the second cylinder 240 to compress the refrigerant.
In an embodiment, the compressor 10 further includes a casing 100, the compressor body 200 and the accumulator 400 are installed inside the casing 100, the top of the casing 100 is opened with an air outlet 110, and the air outlet 110 communicates the first compression chamber 221 and the second compression chamber 241.
Referring to fig. 1, the compressor 10 further includes a casing 100, the casing 100 is substantially cylindrical, and the casing 100 includes an upper cover, a lower cover, and a sidewall, a top end of the sidewall is connected to the upper cover, and a bottom end of the sidewall is connected to the lower cover. The compressor body 200 is installed inside the casing 100, the accumulator 400 is also installed inside the casing 100, and the accumulator 400 is installed at the bottom of the compressor body 200. By installing the accumulator 400 at the bottom of the compressor body 200, the space occupied by the compressor body 200 in the circumferential direction is reduced, and the radial size of the compressor 10 is reduced, thereby reducing the occupied space of the air conditioner case.
In other embodiments, the casing 100 may also be formed by connecting an upper cover to the top end of the side wall, connecting a lower cover to the inner wall of the side wall, and providing a space between the lower cover and the lower surface of the side wall, where the lower surface of the side wall is further provided with a bottom shell. The compressor 10 is installed in the casing 100 and between the upper and lower covers. The reservoir 400 is mounted in the case 100 and between the lower cover and the bottom case.
The top of the casing 100 is opened with an air outlet 110, and the air outlet 110 is communicated with the first compression chamber 221. The gas-liquid mixed refrigerant enters the accumulator 400 through the suction port 410, is separated into gas and liquid, and the liquid refrigerant is stored in the accumulator 400, and the gas refrigerant enters the second compression chamber 241 through the connection pipe 500 through the suction port 260, is compressed, and is discharged from the gas outlet 110. Similarly, after the gas-liquid mixed refrigerant enters the accumulator 400 from the suction port 410, gas-liquid separation is performed, the liquid refrigerant is stored in the accumulator 400, the gas refrigerant enters the second compression chamber 241 from the suction port 260 via the connection pipe 500 and then enters the first compression chamber 221, or enters the first compression chamber 221 via the vent 231, and the gas is discharged from the gas outlet 110 after being compressed.
The utility model discloses still provide a refrigeration plant, this refrigeration plant includes compressor 10, and this compressor 10's concrete structure refers to above-mentioned embodiment, because this refrigeration plant has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here.
The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the concepts of the present invention utilize the equivalent structure transformation of the content of the specification and the attached drawings, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. A compressor, characterized in that the compressor comprises:
the compressor comprises a compressor body, wherein the compressor body comprises a first cylinder and a second cylinder, the first cylinder is provided with a first compression cavity, the second cylinder is provided with a second compression cavity, and the first compression cavity is communicated with the second compression cavity;
the variable-volume device is communicated with the first compression cavity;
the liquid storage device is arranged at the bottom of the compressor body and communicated with the second compression cavity.
2. The compressor of claim 1, wherein the compressor body further includes a partition disposed between the first cylinder and the second cylinder, the partition being provided with a vent communicating the first compression chamber and the second compression chamber.
3. The compressor of claim 2, wherein the compressor body is provided with a suction port, the suction port is provided on the outer wall of the partition, and the suction port communicates the vent and the reservoir.
4. The compressor of claim 2, wherein the compressor body is provided with a suction port, the suction port is provided on an outer wall of the second cylinder, and the suction port communicates the second compression chamber and the accumulator.
5. The compressor of claim 1, wherein the accumulator is in communication with the second compression chamber through a connection pipe.
6. The compressor of claim 1, wherein the variable displacement device comprises a pressure switching valve and a pressure delivery pipe, one end of the pressure delivery pipe is connected with the pressure switching valve, and the other end of the pressure delivery pipe is communicated with the first compression chamber; the variable volume device further comprises a first pipeline and a second pipeline, the first pipeline is connected with the interior of the compressor body and the pressure switching valve, and the second pipeline is connected with the liquid storage device and the pressure switching valve.
7. The compressor of claim 2, wherein the compressor body further includes a first bearing and a second bearing, the first cylinder is disposed between the first bearing and the partition and connects the first bearing and the partition, and an outer race of the first bearing is connected with an inner wall of the compressor body; the second cylinder is arranged between the second bearing and the partition plate and is connected with the second bearing and the partition plate; the compressor body further includes a crankshaft passing through and connecting inner rings of the first and second bearings.
8. The compressor of claim 7, wherein the compressor body further comprises a motor, the motor being coupled to the crankshaft.
9. The compressor of claim 1, further comprising a housing, wherein the compressor body and the accumulator are installed inside the housing, and a gas outlet is formed at the top of the housing and communicates the first compression chamber and the second compression chamber.
10. A refrigeration device, characterized by comprising a compressor according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222052740.2U CN217873278U (en) | 2022-08-04 | 2022-08-04 | Compressor and refrigeration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222052740.2U CN217873278U (en) | 2022-08-04 | 2022-08-04 | Compressor and refrigeration plant |
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| Publication Number | Publication Date |
|---|---|
| CN217873278U true CN217873278U (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222052740.2U Active CN217873278U (en) | 2022-08-04 | 2022-08-04 | Compressor and refrigeration plant |
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| Country | Link |
|---|---|
| CN (1) | CN217873278U (en) |
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- 2022-08-04 CN CN202222052740.2U patent/CN217873278U/en active Active
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