CN117514790A - Pump body structure, compressor and air conditioner applying same - Google Patents

Abstract

The invention discloses a pump body structure, a compressor and an air conditioner applying the same, wherein the pump body structure comprises a gas compression cylinder, a liquid pumping cylinder and a baffle plate assembly positioned between the gas compression cylinder and the liquid pumping cylinder; the gas compression cylinder is provided with a gas channel for circulating the vaporous refrigerant, the liquid pumping cylinder is provided with a liquid channel, the baffle plate assembly is provided with a liquid flow cavity, and the liquid channel is communicated with the liquid flow cavity and then used for circulating the liquid refrigerant. The arrangement mode enables the pump body structure to distinguish refrigerants in different forms, and avoids the influence on the performance of the pump body structure after the liquid refrigerant and the vapor refrigerant are mixed and compressed. The compressor provided by the embodiment is applied to the pump body structure, and through the arrangement of the gas compression cylinder and the liquid pumping cylinder, liquid impact damage caused by liquid suction of the compressor is effectively avoided in the running process of the light load working condition.

Description

Pump body structure, compressor and air conditioner applying same

Technical Field

The invention belongs to the technical field of air conditioners, and relates to a pump body structure, a compressor and an air conditioner applying the pump body structure.

Background

Most of the traditional rolling rotor compressors are designed into high-back pressure compressors, the high-back pressure compressors are externally connected with liquid distributor components through an air suction port, and gas-liquid separation is carried out on gas-liquid mixed refrigerants from an evaporator, so that the phenomenon of liquid impact is avoided in the compression process of air in an air cylinder, and the stable reliability of the compressors is ensured. However, even in the case of the compressor equipped with the liquid separator, the operation condition of the compressor needs to be changed according to the user, so that the liquid separator is difficult to separate gas from liquid under certain operation conditions. For example, under the light load refrigeration condition of the air conditioner, due to the influence of low air suction temperature, a large amount of liquid refrigerant from the evaporator is sucked into the compressor pump body through the liquid separator in the low frequency operation process of the compressor, at the moment, serious air suction and liquid carrying conditions occur, the heat exchange efficiency of the air conditioner is reduced, the refrigerating capacity of the compressor is reduced, the liquid impact condition is also generated, the crankshaft of the compressor is distorted and deformed, the bearing part is invalid, and the reliability of the compressor is reduced.

With the development of society, people have higher requirements on refrigeration devices and wider operation ranges of refrigeration compressors, and the refrigeration compressors are required to meet the global low-carbon energy-saving strategy and adapt to all-condition operation. How to reduce the problem of liquid carrying during low-frequency operation of the rolling rotor compressor when the air conditioner is in a light load working condition and the air suction superheat degree is low is a problem to be solved in the field of the rolling rotor compressor at present.

Disclosure of Invention

In view of the above, the invention provides a pump body structure, a compressor and an air conditioner using the pump body structure, which solve the problem of liquid carrying in the air suction of the traditional compressor, and further ensure the reliability of the compressor.

In order to solve the above-described problems, according to one aspect of the present application, an embodiment of the present invention provides a pump body structure including a gas compression cylinder, a liquid pumping cylinder, and a diaphragm assembly between the gas compression cylinder and the liquid pumping cylinder; the gas compression cylinder is provided with a gas channel for circulating the vaporous refrigerant, the liquid pumping cylinder is provided with a liquid channel, the baffle plate assembly is provided with a liquid flow cavity, and the liquid channel is communicated with the liquid flow cavity and then used for circulating the liquid refrigerant.

In some embodiments, the pump body structure further includes an upper flange disposed above the gas compression cylinder, the upper flange having a gas discharge port thereon, the gas discharge port in communication with the gas passage.

In some embodiments, the gas passage includes a gas suction port opening in a radial direction of the gas compression cylinder, the gas suction port communicating with the gas discharge port.

In some embodiments, a valve plate and a baffle are disposed at the gas outlet, the baffle is covered on the valve plate, one end of the valve plate is fixedly connected with one end of the baffle, and the other end of the baffle can be bent relative to the valve plate to realize opening and closing of the gas outlet.

In some embodiments, the baffle assembly includes an upper baffle and a lower baffle that cooperate to form the liquid flow chamber.

In some embodiments, the liquid channel includes a liquid suction inlet formed along a radial direction of the liquid pumping cylinder, a liquid flow channel formed along an inner surface of the liquid pumping cylinder, and a liquid flow hole and a liquid discharge outlet formed in the lower partition plate, wherein the liquid suction inlet, the liquid flow channel, the liquid flow hole, the liquid flow chamber and the liquid discharge outlet are sequentially communicated.

In some embodiments, an angle C between a line connecting the liquid flow hole and the center of the lower partition plate and a line connecting the liquid discharge port and the center of the lower partition plate satisfies: c is 160-200 deg.

In some embodiments, the pump body structure further comprises a crankshaft, the crankshaft has an upper eccentric portion and a lower eccentric portion, the upper eccentric portion and the lower eccentric portion are respectively arranged in the gas compression cylinder and the liquid pumping cylinder, an upper roller is arranged outside the upper eccentric portion, a lower roller is arranged outside the lower eccentric portion, and the upper roller and the lower roller are respectively connected with a corresponding upper sliding sheet and a corresponding lower sliding sheet; and the upper sliding vane is provided with a control module, and the control module can control the radial sliding of the upper sliding vane, so that the gas compression cylinder works or does not work.

In some embodiments, the control module comprises a sliding vane bottom hole and a pin, wherein the sliding vane bottom hole is arranged at the bottom of the upper sliding vane, a gas path channel is arranged in the upper partition plate, the pin is arranged in the gas path channel, the gas path channel is communicated with high-pressure gas through a connecting pipe, and an electromagnetic valve for controlling the on-off of the connecting pipe is arranged on the connecting pipe; the high-pressure gas can enable the pin to be clamped and fixed with the bottom hole of the sliding vane after rising.

In some embodiments, an angle between a line connecting the liquid suction inlet and the center of the liquid pumping cylinder and a line connecting the lower slide and the center of the liquid pumping cylinder is 25 °;

and/or an included angle between a line connecting the liquid circulation channel and the center of the liquid pumping cylinder and a line connecting the lower slide sheet and the center of the liquid pumping cylinder is 20 degrees;

the liquid suction inlet and the liquid circulation channel are positioned at two sides of the lower sliding vane, and are arranged along the clockwise direction by taking the lower sliding vane as a base point, and the liquid suction inlet and the liquid circulation channel are sequentially arranged.

According to another aspect of the present application, an embodiment of the present invention provides a compressor including the pump body structure described above.

According to another aspect of the present application, an embodiment of the present invention provides an air conditioner including the above-described compressor.

Compared with the prior art, the pump body structure has at least the following beneficial effects:

the pump body structure provided by the invention comprises a gas compression cylinder, a liquid pumping cylinder and a baffle plate assembly positioned between the gas compression cylinder and the liquid pumping cylinder; the gas compression cylinder is provided with a gas channel for circulating the vaporous refrigerant, the liquid pumping cylinder is provided with a liquid channel, the baffle plate assembly is provided with a liquid flow cavity, and the liquid channel is communicated with the liquid flow cavity and then used for circulating the liquid refrigerant. Specifically, the gas compression cylinder, the baffle plate assembly and the liquid pumping cylinder are sequentially arranged from top to bottom; the gas compression cylinder is provided with a gas channel for circulating the vaporous refrigerant, and the baffle plate component and the liquid pumping cylinder jointly form a channel for circulating the liquid refrigerant. The arrangement mode enables the pump body structure to distinguish refrigerants in different forms, and avoids the influence on the performance of the pump body structure after the liquid refrigerant and the vapor refrigerant are mixed and compressed.

The compressor provided by the invention is designed based on the pump body structure, and the beneficial effects of the pump body structure are referred to and are not described in detail herein.

Besides, when the pump body structure provided in this embodiment is applied to a compressor, because the liquid separator of the conventional compressor is difficult to perform gas-liquid separation, for example, the air conditioner is in a light-load refrigeration working condition, and is affected by a low air suction temperature, a large amount of liquid refrigerant from the evaporator is sucked into the compressor pump body through the liquid separator in the low-frequency operation process of the compressor, at this time, serious air suction and liquid carrying situations occur, the heat exchange efficiency of the air conditioner is reduced, the refrigerating capacity of the compressor is reduced, liquid impact situations are also generated, the crankshaft of the compressor is distorted and deformed, the bearing part is invalid, and the reliability of the compressor is reduced. The pump body structure provided by the embodiment effectively avoids liquid impact damage caused by liquid carrying of the air suction of the compressor in the running process of the light load working condition by arranging the air compression cylinder and the liquid pumping cylinder.

The air conditioner provided by the invention is designed based on the compressor, and the beneficial effects of the air conditioner are referred to as beneficial effects of the compressor and are not described in detail herein.

The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a pump body structure provided by an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;

FIG. 3 is a cross-sectional view taken in the direction B-B of FIG. 1;

FIG. 4 is an exploded view of a pump body structure provided by an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a control module in a pump body configuration according to an embodiment of the present invention in an open state;

FIG. 6 is a cross-sectional view of a control module in a closed state in a pump body configuration according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view of an exhaust module in a pump body configuration provided by an embodiment of the present invention;

FIG. 8 is a cross-sectional view of a lower diaphragm in a pump body structure provided by an embodiment of the present invention;

fig. 9 is a sectional view of a compressor provided by an embodiment of the present invention;

fig. 10 is a refrigeration cycle diagram of an air conditioner according to an embodiment of the present invention;

fig. 11 is a refrigeration cycle diagram of an air conditioner in a cooling mode according to an embodiment of the present invention;

fig. 12 is a refrigeration cycle diagram of an air conditioner in an energy saving mode according to an embodiment of the present invention.

Wherein:

1. a compressor; 11. a gas compression cylinder; 12. a liquid pumping cylinder; 13. a separator assembly; 14. a flange; 15. a crankshaft; 16. a roller; 17. a sliding sheet; 18. a control module; 19. a muffler; 111. a gas suction inlet; 121. a liquid suction inlet; 122. a liquid flow channel; 131. an upper partition plate; 132. a lower partition plate; 133. a liquid flow hole; 134. a liquid discharge port; 141. an upper flange; 142. a lower flange; 151. an upper eccentric portion; 152. a lower eccentric portion; 143. a gas outlet; 144. a valve plate; 145. a baffle; 146. a rivet; 161. an upper roller; 162. a lower roller; 171. an upper sliding vane; 172. a lower sliding vane; 181. a sliding sheet bottom hole; 182. a pin; 183. an air path channel; 19. an upper muffler;

2. an evaporator; 21. a liquid refrigerant chamber; 22. a vaporous refrigerant cavity;

3. a condenser;

4. a throttle device;

5. a housing;

6. and an exhaust pipe.

Detailed Description

In order to further describe the technical means and effects adopted for achieving the preset aim of the invention, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the application of the invention with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

In the description of the present invention, it should be clear that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order; the terms "vertical," "transverse," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "horizontal," and the like are used for indicating an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description of the present invention, and do not mean that the apparatus or element referred to must have a specific orientation or position, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1

The present embodiment provides a pump body structure, as shown in fig. 1-8, comprising a gas compression cylinder 11, a liquid pumping cylinder 12, and a diaphragm assembly 13 located between the gas compression cylinder 11 and the liquid pumping cylinder 12; the gas compression cylinder 11 has a gas passage for circulating a vapor refrigerant, the liquid pumping cylinder 12 has a liquid passage, the diaphragm assembly 13 has a liquid flow chamber, and the liquid passage is communicated with the liquid flow chamber for circulating a liquid refrigerant.

Specifically, the gas compression cylinder 11, the diaphragm assembly 13, and the liquid pumping cylinder 12 are disposed in this order from top to bottom; and the gas compression cylinder 11 has a gas passage for the flow of the vapor refrigerant, and the diaphragm assembly 13 and the liquid pumping cylinder 12 together form a passage for the flow of the liquid refrigerant. The arrangement mode enables the pump body structure to distinguish refrigerants in different forms, and avoids the influence on the performance of the pump body structure after the liquid refrigerant and the vapor refrigerant are mixed and compressed.

When the pump body structure provided in this embodiment is applied to a compressor, gas-liquid separation is difficult due to the conventional compressor liquid separator. For example, under the light load refrigeration condition of the air conditioner, due to the influence of low air suction temperature, a large amount of liquid refrigerant from the evaporator is sucked into the compressor pump body through the liquid separator in the low frequency operation process of the compressor, at the moment, serious air suction and liquid carrying conditions occur, the heat exchange efficiency of the air conditioner is reduced, the refrigerating capacity of the compressor is reduced, the liquid impact condition is also generated, the crankshaft of the compressor is distorted and deformed, the bearing part is invalid, and the reliability of the compressor is reduced. The pump body structure provided by the embodiment effectively avoids the liquid impact damage caused by liquid carrying of the air suction of the compressor in the running process of the light load working condition by arranging the air compression cylinder 11 and the liquid pumping cylinder 12.

In a specific embodiment, as shown in fig. 4, the pump body structure further includes an upper flange 141 disposed above the gas compression cylinder 11, and the upper flange 141 has a gas outlet 143 thereon, and the gas outlet 143 communicates with the gas channel.

Specifically, the upper flange 141 is matched with the gas compression cylinder 11, and the vaporous refrigerant enters the upper flange 141 after passing through a gas channel in the gas compression cylinder 11, and in order to realize the circulation of the vaporous refrigerant, the upper flange 141 is provided with a flow hole structure, and the vaporous refrigerant passing through the gas channel enters the flow hole structure of the upper flange 141 and is discharged; in order to reduce noise generated during the circulation process, an upper muffler 19 is provided above the upper flange 141, and the vapor refrigerant passing through the circulation hole structure enters the upper muffler 19 and is discharged from the hole above the upper muffler 19.

In addition, a lower flange 142 is provided below the liquid pumping cylinder 12, and a lower muffler is provided below the lower flange 142, corresponding to the upper flange 141 and the upper muffler 19.

The upper flange 141 and the lower flange 142 together form the flange 14, providing support and connection for the pump body structure. The upper silencer 19 and the lower silencer form a silencer together, so that noise generated by the pump body structure can be reduced.

In a specific embodiment, as shown in fig. 4, the gas passage includes a gas suction port 111 opened in a radial direction of the gas compression cylinder 11, and the gas suction port 111 communicates with the gas discharge port 143.

In this embodiment, the gas compression cylinder 11 is an independent compression cylinder, a chamber is formed by the outer circumferential wall of the upper roller 161, the inner circumferential wall of the gas compression cylinder 11, the plane of the upper flange 141 and the plane of the upper partition plate 131, the gas suction inlet 111 is radially arranged on the gas compression cylinder 11, the gas discharge outlet 143 is arranged on the plane of the upper flange 141, the chamber is divided into two parts by the cooperation of the upper slide sheet 171 and the upper roller 161, the gas suction chamber and the gas discharge chamber are respectively a gas suction chamber, the gas suction chamber gradually increases along with the rotation movement of the upper roller 161, negative pressure is formed in the chamber, the vapor refrigerant is sucked in by the gas suction inlet 111, the volume of the gas discharge chamber gradually decreases, the vapor refrigerant is compressed into high temperature and high pressure and is discharged into the shell 5 through the upper muffler 19, and finally discharged through the compressor discharge pipe 6, thereby realizing the compression cycle of refrigeration.

In a specific embodiment, as shown in fig. 7, a valve plate 144 and a baffle 145 are disposed at the gas outlet 143, the baffle 145 covers the valve plate 144, one end of the valve plate 144 is fixedly connected with one end of the baffle 145, and the other end of the baffle 145 can be bent relative to the valve plate 144 to open and close the gas outlet 143.

Specifically, an exhaust module is disposed at the gas outlet 143, the exhaust module includes the valve sheet 144 and the baffle 145, and the valve sheet 144 and the baffle 145 are sequentially installed at the gas outlet 143, and one ends of the valve sheet 144 and the baffle 145 are fixed to the upper flange 141 by rivets 146.

In addition, the valve plate 144 is made of steel sheet, is in a straight state, presses the gas outlet 143, and if high-pressure gas is discharged, the valve plate 144 bends to open the gas outlet 143 for discharging, thereby controlling the opening and closing of the gas outlet 143. The baffle 145 is tightly locked on the valve plate 144, so as to limit the bending angle and the bending height of the valve plate 144, and play a limiting role.

In a specific embodiment, the baffle assembly 13 includes an upper baffle 131 and a lower baffle 132, and the upper baffle 131 and the lower baffle 132 cooperate to form the liquid flow chamber. More specifically, the upper partition plate 131 has a substantially plate-like configuration in outline, and the lower partition plate 132 has a configuration having a certain height and a cavity, and the cavity of the lower partition plate 132 forms a liquid flow chamber in cooperation with the upper partition plate 131.

The upper partition plate 131 is arranged between the gas compression cylinder 11 and the lower partition plate 132, and is used for separating the gas compression cylinder 11 from the liquid flow cavity to play a role in separation, and the inner circle of the upper partition plate 131 and the middle shaft section of the crankshaft 15 form a pair of support shaft parts, and the upper partition plate 131 also has a middle support role; the lower partition 132 of the liquid flow chamber has a thickness greater than that of the upper partition 131, facilitating the provision of the liquid discharge port 134 in the radial direction of the lower partition 132.

In a specific embodiment, the liquid channel includes a liquid suction inlet 121 formed along a radial direction of the liquid pumping cylinder 12, a liquid flow channel 122 formed along an inner surface of the liquid pumping cylinder 12, a liquid flow hole 133 and a liquid discharge outlet 134 formed on a lower partition 132, and the liquid suction inlet 121, the liquid flow channel 122, the liquid flow hole 133, the liquid flow chamber and the liquid discharge outlet 134 are sequentially communicated.

In this embodiment, in the liquid pumping cylinder 12, the outer circumferential wall of the lower roller 162, the inner circumferential wall of the liquid pumping cylinder 12, the plane of the lower partition 132 and the plane of the lower flange 142 form a chamber, the liquid pumping cylinder 12 is provided with a radial liquid suction inlet 121 and a liquid flow channel 122 for communicating with a liquid flow chamber on the inner circumferential wall of the liquid pumping cylinder 12, the plane of the lower partition 132 is provided with a liquid flow hole 133, the lower slide sheet 172 and the lower roller 162 divide the chamber into two parts under cooperation, and the liquid suction chamber and the liquid discharge chamber are divided into a liquid suction chamber and a liquid discharge chamber, the liquid suction chamber gradually increases with the rotation of the lower roller 162, a negative pressure is formed in the chamber, the liquid refrigerant is sucked in, the volume of the liquid discharge chamber gradually decreases, the liquid refrigerant is gradually discharged from the liquid flow channel 122, and enters the liquid flow chamber through the liquid flow hole 133 of the lower partition 132, so that the liquid refrigerant is discharged from the radial liquid discharge outlet 134 of the lower partition 132, and the liquid refrigerant circulation pumping is realized.

In a specific embodiment, an angle C between a line connecting the liquid flow hole 133 and the center of the lower partition 132 and a line connecting the liquid discharge port 134 and the center of the lower partition 132 satisfies: c is 160-200 deg.

In this embodiment, the liquid pumping cylinder 12 is matched with the liquid flow cavity, so as to enable the liquid refrigerant to be independently conveyed, the liquid flow hole 133 of the lower partition 132 is provided without a blocking member, so that the effect of stably conveying the liquid refrigerant can be achieved, the liquid refrigerant enters the liquid flow cavity through the liquid pumping cylinder 12, the liquid discharge outlet 134 is arranged at 160 ° -200 ° relative to the liquid flow hole 133, the liquid refrigerant can fully flow into the liquid flow cavity, heat exchange is carried out on the gas compression cylinder 11, the cooling effect is achieved, the exhaust temperature is controlled through the liquid refrigerant, the circulation of the liquid refrigerant in the pump body can directly reduce the exhaust temperature, the refrigerating capacity is improved, the cooling effect is achieved for the middle support, and the reliability of the compressor is improved.

In a specific embodiment, the pump body structure further includes a crankshaft 15, as shown in fig. 2 and 3, the crankshaft 15 has an upper eccentric portion 151 and a lower eccentric portion 152, the upper eccentric portion 151 and the lower eccentric portion 152 are respectively disposed in the gas compression cylinder 11 and the liquid pumping cylinder 12, an upper roller 161 is disposed outside the upper eccentric portion 151, a lower roller 162 is disposed outside the lower eccentric portion 152, and the upper roller 161 and the lower roller 162 are respectively connected with an upper slide 171 and a lower slide 172; and a control module 18 is arranged at the upper sliding vane 171, and the control module 18 can control the radial sliding of the upper sliding vane 171, so that the gas compression cylinder 11 is operated or not operated.

With the increasing demand of the compressor applied to the machine room, refrigeration is required all the year round, for example, when the outdoor temperature is lower than the indoor temperature in winter, abundant cold sources exist in nature, natural cooling can be reasonably utilized, the energy-saving effect is relatively good, a great amount of electricity fees are saved for users, and the strategy of global low-carbon energy saving can be met, so the pump body structure provided by the embodiment is provided with the control module 18 at the upper sliding vane 171, and the radial sliding of the upper sliding vane 171 can be controlled, so that the pump body structure provided by the embodiment has two operation modes, namely, a refrigeration mode in which the gas compression cylinder 11 and the liquid pumping cylinder 12 work together, and an energy-saving mode in which the liquid pumping cylinder 12 only works.

In a specific embodiment, as shown in fig. 5 and 6, the control module 18 includes a slide bottom hole 181 disposed at the bottom of the upper slide 171, and a pin 182, the upper partition 131 has a gas channel 183 therein, the pin 182 is disposed in the gas channel 183, the gas channel is communicated with high pressure gas through a connection pipe, and the connection pipe is provided with a solenoid valve for controlling on/off of the connection pipe; the high pressure gas can make the pin 182 to be fastened and fixed with the slide bottom hole 181 after rising.

The working process of the control module 18 is as follows: the control module 18 is controlled by a slider bottom hole 181 and a pin 182. The pin 182 is disposed in a channel hole on the upper partition 131, the bottom of the channel hole is communicated with external high-pressure gas, and the communicating pipe is provided with an electromagnetic valve for controlling the communication of the high-pressure gas. The high-pressure gas is communicated through the control electromagnetic valve, enters the gas path channel, and the control pin 182 moves upwards; the bottom of the sliding vane is provided with a sliding vane bottom hole 181, and a pin 182 moves upwards to clamp the upper sliding vane 171, so that the upper sliding vane 171 stops radial reciprocating movement, and the control of the upper sliding vane 171 is realized. When the control solenoid valve is closed, the high pressure is disconnected, the pin 182 moves downward due to its own weight, and the upper slider 171 moves again to be opened.

The compressor performs refrigeration requirement in winter, the upper sliding vane 171 in the gas compression cylinder 11 is controlled to keep a contracted state, the gas compression cylinder 11 cannot form compression, which is equivalent to disabling the gas compression cylinder 11, keeping the liquid pumping cylinder 12 to operate, driving the refrigerant in the refrigeration device to be naturally cooled by the condenser, then entering the evaporator 2 through the throttling device 4 to exchange heat with the environment, and finally returning to the compressor 1 to form refrigeration cycle;

cooling mode: as shown in fig. 11, the gas compression cylinder 11 and the liquid pumping cylinder 12 work together. In summer, the machine room air conditioner starts the refrigeration cycle, the vaporous refrigerant enters the gas compression cylinder 11 to work, the liquid refrigerant enters the liquid pumping cylinder 12 to work, the operation mode avoids the operation of sucking liquid, ensures the reliability of the compressor, and achieves the purpose that the machine room air conditioner does not stop running all the year round.

Energy-saving mode: as shown in fig. 12, the liquid pumping cylinder 12 operates. When the outdoor temperature is lower than the set point, the gas compression cylinder 11 is deactivated by the control module 18, and the energy-saving operation of the liquid pumping cylinder 12 is automatically switched, so that the safe and reliable operation of the air conditioner of the machine room throughout the year is ensured.

The specific principle is as follows: when the outdoor temperature is lower than the set point, as in winter, the refrigerating requirement is met, and the outdoor temperature is lower than the indoor temperature, so that the refrigerant of the refrigerating device is only required to be promoted to perform circulating motion. The upper sliding vane 171 in the gas compression cylinder 11 is controlled by the control module 18 to always keep a contracted state, the gas compression cylinder 11 cannot form compression, which is equivalent to disabling the gas compression cylinder, the liquid pumping cylinder 12 is kept to operate, the liquid pumping cylinder 12 sucks liquid refrigerant into the suction cavity through the liquid suction inlet 121, the liquid refrigerant is conveyed to the liquid circulation channel 122 through the rotary motion of the lower roller 162, the liquid refrigerant enters the middle cavity through the liquid circulation holes of the lower partition 132, finally, the liquid refrigerant is discharged from the radial liquid discharge outlet 134 on the lower partition 132, naturally cooled through the condenser 3, enters the evaporator 2 to exchange heat with the outside through the throttling device 4, and finally returns to the compressor 1. The compressor only needs a low-frequency pumping function in the refrigeration cycle process, has good energy-saving effect, saves a great amount of electricity charge for users, and can also meet the strategy of global low-carbon energy conservation and realize the energy-saving effect.

In a specific embodiment, as shown in fig. 2, an included angle between a line connecting the liquid suction inlet 121 and the center of the liquid pumping cylinder 12 and a line connecting the lower slide 172 and the center of the liquid pumping cylinder 12 is 25 °;

as shown in fig. 2, the angle between the line connecting the liquid circulation channel 122 and the center of the liquid pumping cylinder 12 and the line connecting the lower slide 172 and the center of the liquid pumping cylinder 12 is 20 °;

the liquid suction port 121 and the liquid flow channel 122 are located at two sides of the lower slide 172, and are disposed in sequence along the clockwise direction with the lower slide 172 as a base point, and the liquid suction port 121 and the liquid flow channel 122 are disposed in sequence.

Specifically, the liquid suction port 121 is disposed at 25 ° clockwise of the lower slide plate 172, and since the diameter of the liquid suction port 121 is generally 23mm, the liquid suction port 121 is disposed at 25 ° clockwise, on one hand, the processing limit of 2mm of the wall thickness of the lower slide plate 172 on the inner circular wall of the liquid suction port 121 is just guaranteed, and on the other hand, the angle affects the expansion of the gas in the suction chamber before the start of suction, and the gas pressure in the volume is lower as the angle is larger, and the suction of the compression chamber is affected, so that the configuration is most suitable for 25 °.

Specifically, the lower cylinder liquid circulation channel is arranged at 20 degrees anticlockwise, on the one hand, the minimum processing size requirement of 2mm between the arc-shaped opening and the sliding vane groove edge can be met by 20 degrees anticlockwise, on the other hand, if the angle is larger, the larger the free space between the arc-shaped opening and the sliding vane groove edge is, another problem can occur, after exhaust is closed, the problem of recompression occurs, the gas pressure in the working cavity rapidly rises, and the pressure of the exhaust is exceeded. And is therefore most suitably disposed at 20 degrees counter-clockwise.

Example 2

This embodiment provides a compressor, as shown in fig. 9, which includes the pump body structure described in embodiment 1.

Example 3

The present embodiment provides an air conditioner including the compressor 1 of embodiment 2.

In a specific embodiment, as shown in fig. 10-12, the air conditioner further includes an evaporator 2, a condenser 3 and a throttling device 4, the evaporator 2 has a liquid refrigerant cavity 21 and a vapor refrigerant cavity 22, the liquid refrigerant cavity 21 is connected with the inlet of the liquid pumping cylinder 12, the vapor refrigerant cavity 22 is connected with the inlet of the gas compressing cylinder 11, the outlets of the gas compressing cylinder 11 and the liquid pumping cylinder 12 are both connected with the condenser 3, and the condenser 3 is connected with the inlet of the evaporator 2 through the throttling device 4.

The air conditioner has a circulation circuit for circulating a refrigerant, which is composed of a condenser 3, a throttle device 4, an evaporator 2, and the above-mentioned compressor 1. The evaporator 2 is provided with a liquid refrigerant cavity 21 and a vapor refrigerant cavity 22, wherein the upper cavity is the vapor refrigerant cavity 22, and the lower cavity is the liquid refrigerant cavity 21. The compressor 1 is arranged between the condenser 3 and the evaporator 2, the compressor 1 is provided with two suction paths, one of which is communicated with a gas suction port 111 of the gas compression cylinder 11, and the other end of the suction path is connected with a vapor refrigerant cavity 22 of the evaporator 2. The other liquid refrigerant suction path is communicated with a liquid suction inlet 121 radially arranged on the liquid pumping cylinder 12, and the other end of the liquid refrigerant suction path is connected with a liquid refrigerant cavity 21 of the evaporator 2; in addition, the compressor is provided with two discharge paths, one of which is a compression exhaust pipe 6, namely, the compressor is arranged on the shell 5, and the other end is connected with the condenser 3; the other is a liquid discharge pipe which is communicated with a radial liquid discharge port 134 arranged on a lower partition 132 of the middle cavity of the compressor, and the other end is connected with the condenser 3.

The compression cavity of the compressor consists of a crankshaft 15, a gas compression cylinder 11, a liquid pumping cylinder 12, rollers 16, an upper flange 141, a baffle plate assembly 13 and a sliding vane 17. The eccentric part of the crankshaft 15 is arranged in the corresponding cylinder in series; the roller 16 is arranged on the eccentric part of the crankshaft 15 in series; the slide 17 is provided in a slide groove of the cylinder, one end is always pressed by a spring member, and the other end is in contact with the outer wall surface of the roller 16. In the cylinder, the roller 16 and the slide 17 form a compression chamber. The crankshaft 15 rotates, and the rollers 16 eccentrically rotate, whereby the compression chamber in the cylinder repeatedly expands and contracts, and when the compression chamber of the cylinder expands, the refrigerant introduced from the suction port is sucked into the compression chamber, and when the pressure of the refrigerant becomes a certain level (discharge pressure) by the contraction of the compression chamber while the crankshaft 15 rotates, the refrigerant is compressed, and when the pressure of the refrigerant becomes a certain level, the refrigerant in the cylinder is discharged through the upper flange gas discharge port along with the discharge port. The above-mentioned cylinders refer to a gas compression cylinder 11 and a liquid pumping cylinder 12.

The vapor refrigerant in the upper cavity of the evaporator 2 is sucked by the gas compression cylinder 11 of the compressor, compressed into a high-temperature high-pressure vapor state, discharged from the gas discharge port 143 of the upper flange 141, passes through the upper silencer 19 to the shell 5, and discharged from the upper exhaust pipe 6 of the compressor 1 to the condenser 3; in addition, the liquid refrigerant in the lower chamber of the evaporator 2 is sucked by the compressor liquid pumping cylinder 12, is rotationally pumped to the liquid circulation channel 122 of the lower cylinder through the cylinder, is conveyed to the middle chamber from the liquid circulation hole 133 of the lower partition 132, and finally is conveyed to the condenser 3 from the radial liquid discharge port 134 of the lower partition 132; the vapor state and the liquid refrigerant are mixed in the condenser 3, become a low-temperature high-pressure gas-liquid mixed refrigerant through the condenser 3, then flow into the evaporator 2 to exchange heat with the environment after being depressurized through the throttling device 4, and finally form a new refrigeration cycle.

In summary, it is easily understood by those skilled in the art that the above-mentioned advantageous features can be freely combined and overlapped without conflict.

The above is only a preferred embodiment of the present invention, and the present invention is not limited in any way, and any simple modification, equivalent variation and modification made to the above embodiment according to the technical substance of the present invention still falls within the scope of the technical solution of the present invention.

Claims (12)

1. A pump body structure comprising a gas compression cylinder, a liquid pumping cylinder, and a diaphragm assembly positioned between the gas compression cylinder and the liquid pumping cylinder; the gas compression cylinder is provided with a gas channel for circulating the vaporous refrigerant, the liquid pumping cylinder is provided with a liquid channel, the baffle plate assembly is provided with a liquid flow cavity, and the liquid channel is communicated with the liquid flow cavity and then used for circulating the liquid refrigerant.

2. The pump body structure of claim 1, further comprising an upper flange disposed above the gas compression cylinder, the upper flange having a gas outlet port thereon, the gas outlet port in communication with the gas passage.

3. The pump body structure according to claim 2, wherein the gas passage includes a gas suction port opened in a radial direction of the gas compression cylinder, the gas suction port communicating with the gas discharge port.

4. A pump body structure according to claim 3, wherein a valve plate and a baffle are provided at the gas discharge port, the baffle is covered on the valve plate, one end of the valve plate is fixedly connected with one end of the baffle, and the other end of the baffle can be bent relative to the valve plate to open and close the gas discharge port.

5. The pump body structure of any one of claims 1-4, wherein the diaphragm assembly comprises an upper diaphragm and a lower diaphragm that cooperate to form the liquid flow chamber.

6. The pump body structure according to claim 5, wherein the liquid passage includes a liquid suction port provided along a radial direction of the liquid pumping cylinder, a liquid flow passage provided along an inner surface of the liquid pumping cylinder, a liquid flow hole and a liquid discharge port provided on the lower partition plate, and the liquid suction port, the liquid flow passage, the liquid flow hole, the liquid flow chamber and the liquid discharge port are sequentially communicated.

7. The pump body structure according to claim 6, wherein an angle C between a line connecting the liquid flow hole and the center of the lower diaphragm and a line connecting the liquid discharge port and the center of the lower diaphragm satisfies: c is 160-200 deg.

8. The pump body structure of claim 6, further comprising a crankshaft having an upper eccentric portion and a lower eccentric portion, the upper and lower eccentric portions being disposed within the gas compression cylinder and the liquid pumping cylinder, respectively, the upper eccentric portion having an upper roller outside thereof and the lower eccentric portion having a lower roller outside thereof, the upper and lower rollers being connected to corresponding upper and lower slides, respectively; and the upper sliding vane is provided with a control module, and the control module can control the radial sliding of the upper sliding vane, so that the gas compression cylinder works or does not work.

9. The pump body structure according to claim 8, wherein the control module comprises a slide bottom hole arranged at the bottom of the upper slide and a pin, the upper partition plate is internally provided with a gas path channel, the pin is arranged in the gas path channel, the gas path channel is communicated with high-pressure gas through a connecting pipe, and the connecting pipe is provided with an electromagnetic valve for controlling the on-off of the connecting pipe; the high-pressure gas can enable the pin to be clamped and fixed with the bottom hole of the sliding vane after rising.

10. The pump body structure of claim 8, wherein an angle between a line connecting the liquid suction port and the center of the liquid pumping cylinder and a line connecting the lower slide and the center of the liquid pumping cylinder is 25 °;

and/or an included angle between a line connecting the liquid circulation channel and the center of the liquid pumping cylinder and a line connecting the lower slide sheet and the center of the liquid pumping cylinder is 20 degrees;

the liquid suction inlet and the liquid circulation channel are positioned at two sides of the lower sliding vane, and are arranged along the clockwise direction by taking the lower sliding vane as a base point, and the liquid suction inlet and the liquid circulation channel are sequentially arranged.

11. A compressor comprising a pump body structure according to any one of claims 1 to 10.

12. An air conditioner, characterized in that the air conditioner comprises the compressor of claim 11.