Compression-expansion linkage type refrigerating or heating device

By designing a compression-expansion linkage refrigeration unit, the problem of low energy efficiency in air conditioning systems is solved, enabling tiered energy utilization and energy efficiency improvement, reducing energy consumption and saving electricity costs.

CN121346408APending Publication Date: 2026-01-16金荣国
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Patent Information

Application Number
CN202511877647.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-01-16

AI Technical Summary

Technical Problem

Existing air conditioning systems have low energy efficiency, and energy is not effectively recovered and utilized, resulting in low overall energy efficiency.

Method used

It adopts a compression-expansion linkage refrigeration unit, including a rotary compressor, a variable speed gear unit and a working device. Through the linkage design within the sealed container, it realizes the cascade utilization of energy and improves energy efficiency.

Benefits of technology

The internal energy of the refrigerant decreases after expansion and work is done, the temperature drops, the cooling effect is improved, energy consumption is reduced, energy utilization is increased, and electricity and electricity costs are saved.

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Abstract

The invention discloses a compression-expansion linkage type refrigerating or heating device, and relates to the technical field of heat exchange devices. A compression-expansion linkage type refrigerating or heating device comprises a rotor type compressor, a connecting shaft, a speed change gear device and a work doing device, the rotor type compressor is connected with the speed change gear device through the connecting shaft, the other end of the speed change gear device is connected with the work doing device, and a sealing device is arranged between the rotor type compressor and the connecting shaft. And a sealing device is arranged between the change gear device and the acting device. The whole system needs to be placed in a sealed container, the purposes of energy conservation and consumption reduction are achieved after a refrigerant from the condenser is expanded to do work through the work doing device, the internal energy of the refrigerant subjected to expansion work doing is reduced, the temperature of the refrigerant subjected to expansion work doing is lowered, in the evaporator, the lower temperature of the refrigerant can take away more heat, the refrigeration effect is improved, and the refrigeration efficiency is improved. Energy consumption is reduced, and the energy utilization rate is increased through the linkage design of the compression and expansion work doing processes.
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Description

Technical Field

[0001] This invention relates to the field of radiator assembly technology, and more specifically to a compression-expansion linkage cooling or heating device. Background Technology

[0002] The existing air conditioning cooling and heating system compresses the working medium into a high-temperature, high-pressure gas through a compressor. After being cooled by the condenser, it becomes a high-temperature, high-pressure liquid. It then passes through a throttling expansion valve, turns into a gas, absorbs a large amount of heat, and returns to the compressor, forming a working cycle. However, in the existing refrigeration system, this energy is wasted and not effectively recovered and utilized, resulting in relatively low overall energy efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a compression-expansion linkage refrigeration or heating device to solve the problem of low energy efficiency in air conditioning refrigeration and heating systems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A compression-expansion linkage refrigeration or heating device includes a rotary compressor, a connecting shaft, a speed-changing gear device, and a working device. The rotary compressor is connected to the speed-changing gear device via the connecting shaft, and the working device is connected to the other end of the speed-changing gear device. A sealing device is provided between the rotary compressor and the connecting shaft, and a sealing device is provided between the speed-changing gear device and the working device.

[0005] Furthermore, the working device includes a housing, a rotor, a vane, an air inlet, and an exhaust port. The rotor is housed inside the housing, and the side of the rotor is in close contact with the vane. The other end of the vane extends to the outside of the housing. The air inlet and the exhaust port are respectively located on the housing on both sides of the vane. The air inlet and the exhaust port communicate with the interior of the housing. The air inlet is used to introduce high-pressure gas to drive the rotor, and the exhaust port discharges expanded low-pressure gas. The rotor is provided with a rotor shaft, and the extended end of the rotor shaft is connected to the speed-changing gear device.

[0006] Furthermore, the rotor is provided with a rotor shaft, and the extended end of the rotor shaft is connected to the speed-changing gear device.

[0007] Furthermore, the rotor is an eccentric cam structure. The eccentric cam structure of the rotor has a blocking effect during rotation, which causes the air inlet and the exhaust port to automatically alternate between air intake and exhaust. The upper part of the air inlet and the exhaust port is provided with a one-way ventilation device.

[0008] Furthermore, the axes of the rotary compressor, connecting shaft, speed-changing gear device, and working device are on a straight line and installed in the same sealed container.

[0009] The beneficial effects of this invention are as follows: The entire system is placed in a sealed container. The refrigerant from the condenser expands and performs work through the working device, achieving energy saving and consumption reduction. The mechanical energy gained is then directly transferred to the original compressor via a speed-changing gear device and connecting shaft, maximizing energy efficiency. After expansion and work, the refrigerant's internal energy decreases, and its temperature drops. In the evaporator, the lower temperature of the refrigerant allows it to remove more heat, further improving the cooling effect and reducing energy consumption. Through the linkage design of the compression and expansion work processes, the heat absorption during expansion is organically combined with compression and work, achieving cascaded energy utilization, improving overall energy efficiency, and significantly saving electricity and electricity costs.

[0010] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0012] Figure 2 This is a cross-sectional structural diagram of component 4 of the present invention.

[0013] Figure 3 This is a cross-sectional structural diagram of the starting position of component 4 of the present invention.

[0014] Explanation of reference numerals in the attached drawings: 1. Rotary compressor; 2. Connecting shaft; 3. Speed ​​change gear device; 4. Working device; 40. Housing; 41. Rotor; 42. Sliding vane; 43. Air inlet; 44. Air outlet; 45. Rotor shaft. Detailed Implementation

[0015] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0018] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] Please see Figure 1-3 A preferred embodiment of this application shows a compression-expansion linkage refrigeration or heating device, including a rotary compressor 1, a connecting shaft 2, a speed-changing gear device 3, and a working device 4. The rotary compressor 1 is connected to the speed-changing gear device 3 through the connecting shaft 2. The speed-changing gear device 3 plays a speed reduction role. The other end of the speed-changing gear device 3 is connected to the working device 4. A sealing device is provided between the rotary compressor 1 and the connecting shaft 2, and a sealing device is provided between the speed-changing gear device 3 and the working device 4.

[0020] The working device 4 includes a housing 40, a rotor 41, a vane 42, an air inlet 43, and an exhaust port 44. The rotor 41 is housed inside the housing 40. The side of the rotor 41 is in close contact with the vane 42. The other end of the vane 42 extends to the outside of the housing 40. The air inlet 43 and the exhaust port 44 are respectively located on the housing 40 on both sides of the vane 42. The air inlet 43 and the exhaust port 44 are connected to the inside of the housing 40. The air inlet 43 is used to introduce high-pressure gas to drive the rotor 41 to move, while the exhaust port 44 discharges the expanded low-pressure gas. The rotor 41 is provided with a rotor shaft 45. The extended end of the rotor shaft 45 is connected to the speed change gear device 3.

[0021] The rotor 41 is provided with a rotor shaft 45, and the extended end of the rotor shaft 45 is connected to the speed change gear device 3.

[0022] The rotor 41 has an eccentric cam structure. The eccentric cam structure of the rotor 41 blocks the air intake port 43 and the exhaust port 44 automatically alternate between intake and exhaust. The upper part of the intake port 43 and the exhaust port 44 is provided with a one-way ventilation device.

[0023] The axes of the rotary compressor 1, connecting shaft 2, speed-changing gear device 3, and working device 4 are on a straight line and installed in the same sealed container.

[0024] The rotor 41 is an eccentric cam structure. During rotation, the eccentric cam structure of the rotor 41 controls the intake of the intake port 43 and the exhaust of the exhaust port 44 by blocking the rotation angle.

[0025] In operation, as the rotary compressor 1 rotates, the rotor 41 begins to rotate after being reduced in speed by gears. At a certain time, the air inlet 43 is not blocked by the rotor 41, and high-pressure gas enters the housing 40 of the working device 4 through the air inlet 43, pushing the rotor 41 to move and driving the rotor shaft 45 to move. The rotor shaft 45 is connected to the external gears, which further drives the speed-changing gear device 3 to move. The speed-changing gear device 3 then increases the speed and transmits the power to the rotary compressor 1 through the connecting shaft 2, driving it to perform compression work and achieving efficient energy recovery and utilization. The vane 42 acts as an isolation between the two chambers. As the rotor 41 continues to rotate, the air inlet 43 will be blocked, and the air intake will stop, thus repeating the cycle.

[0026] The function of the speed-changing gear is to transfer the mechanical energy obtained from work to the rotary compressor by increasing the rotational speed, so as to drive the rotary compressor to rotate.

[0027] The rotary compressor 1 is connected to the speed change gear device 3 via the connecting shaft 2. The other end of the speed change gear device 3 is connected to the working device 4. The purpose of deceleration is to provide the working device 4 with an initial rotational power to start working. Conversely, the working device 4 can effectively transfer the mechanical energy obtained to the rotary compressor after speed increase.

[0028] The entire system should be placed inside a sealed container, with the condenser and evaporator placed outside the sealed container to facilitate heat exchange.

[0029] In summary, this invention provides a compression-expansion linked refrigeration or heating device. This device places the entire system within a sealed container. The refrigerant from the condenser expands and performs work through the working device, achieving energy saving and consumption reduction. The resulting mechanical energy is then directly transferred to the existing compressor via a transmission gear and connecting shaft, maximizing energy efficiency. After expansion, the refrigerant's internal energy decreases, and its temperature drops. In the evaporator, the lower temperature of the refrigerant allows it to remove more heat, further improving the cooling effect and reducing energy consumption. Through the linked design of the compression and expansion processes, the heat absorption during expansion is organically combined with the compression and work, achieving cascaded energy utilization, improving overall energy efficiency, and significantly saving on electricity and electricity costs.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The embodiments described above are merely illustrative of implementation methods of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A compression-expansion coupled refrigeration or heating device, characterized by, The application relates to a rotary compressor, which comprises a rotary compressor (1), a connecting shaft (2), a variable speed gear device (3) and a work device (4), wherein the rotary compressor (1) is connected with the variable speed gear device (3) through the connecting shaft (2), the variable speed gear device (3) is connected with the work device (4) at the other end, and sealing devices are arranged between the rotary compressor (1) and the connecting shaft (2) and between the variable speed gear device (3) and the work device (4).

2. A compression-expansion combined refrigeration or heating device according to claim 1, wherein The work device (4) comprises a shell (40), a rotor (41), a sliding vane (42), an air inlet hole (43) and an air outlet hole (44), the shell (40) is internally provided with the rotor (41), the rotor (41) is in close contact with the sliding vane (42) on the side, the other end of the sliding vane (42) penetrates out of the shell (40), the air inlet hole (43) and the air outlet hole (44) are arranged on the shell (40) on the two sides of the sliding vane (42) respectively, the air inlet hole (43) and the air outlet hole (44) are communicated with the inside of the shell (40), the air inlet hole (43) is used for guiding high-pressure gas to drive the rotor (41) to move, the air outlet hole (44) is used for discharging expanded low-pressure gas, the rotor (41) is provided with a rotor shaft (45), and the extending end of the rotor shaft (45) is connected with the variable speed gear device (3).

3. A compression-expansion combined refrigeration or heat generation device according to claim 2, wherein The rotor (41) is provided with a rotor shaft (45), and the extending end of the rotor shaft (45) is connected with the variable speed gear device (3).

4. A compression-expansion combined refrigeration or heating device according to claim 2, wherein The rotor (41) is an eccentric cam structure, the eccentric cam structure of the rotor (41) automatically alternately performs air intake and air exhaust of the air inlet hole (43) and the air outlet hole (44) through the shielding effect in the rotating process, and the upper portions of the air inlet hole (43) and the air outlet hole (44) are provided with one-way air passing devices.

5. The compression-expansion combined refrigeration or heating device according to claim 1, wherein The rotary compressor (1), the connecting shaft (2), the variable speed gear device (3) and the work device (4) are arranged on the same straight line and are installed in the same sealed container.