Compressor and refrigeration equipment

Abstract

The utility model provides a compressor and refrigeration equipment, the compressor includes: shell, orbiting scroll, static scroll and solenoid valve, and the shell is equipped with inspiration chamber. The orbiting scroll and the static scroll are both located in the shell, a plurality of compression cavities are defined by the static scroll and the orbiting scroll, bypass holes and bypass channels are formed in the static scroll, the bypass holes are communicated with the compression cavities, and the bypass channels are communicated with the bypass holes. At least one part of the electromagnetic valve is located outside the shell, an inlet of the electromagnetic valve communicates with the bypass hole through the bypass channel, and an outlet of the electromagnetic valve communicates with the air suction cavity. According to the scheme, connection and disconnection between the bypass channel and the air suction cavity are controlled through the electromagnetic valve, compared with the scheme in the related technology, the scheme does not need a complex mechanical device to control opening and closing of the bypass hole, the structure of the compressor is simplified, and the complexity and the failure rate of the system are reduced.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and more specifically, to a compressor and a refrigeration device. Background Technology

[0002] Currently, the bypass structure of variable displacement compressors mainly involves creating bypass ports on the compressor's stationary scroll. These ports allow some gas to leak out of the compression chamber beforehand and return to the suction chamber. This bypass structure often uses three-way or four-way valves to introduce different high, medium, and low pressure gases to control the opening and closing of the compressor's internal shut-off valves. This method requires adding multiple sets of drain pipes or channels inside the compressor, increasing the number of parts and the difficulty of assembly. Utility Model Content

[0003] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] In view of this, in a first aspect, the present invention proposes a compressor, comprising: a housing, wherein an intake chamber is provided inside the housing; a moving scroll, located inside the housing; a stationary scroll, located inside the housing, wherein the stationary scroll and the moving scroll enclose a plurality of compression chambers, wherein the stationary scroll is provided with a bypass hole and a bypass channel, the bypass hole communicating with the compression chamber, and the bypass channel communicating with the bypass hole; and a solenoid valve, wherein at least a portion of the solenoid valve is located outside the housing, the inlet of the solenoid valve communicating with the bypass hole through the bypass channel, and the outlet of the solenoid valve communicating with the intake chamber.

[0005] The stationary and moving scroll plates are housed within the casing, and the compression chamber formed by the stationary and moving scroll plates is connected to the intake chamber. Since the moving scroll plate can move relative to the stationary scroll plate, it can compress the gas in the compression chamber during its movement. When the compressed gas increases to the exhaust pressure, the high-temperature and high-pressure compressed gas is discharged from the exhaust port on the stationary scroll plate.

[0006] A bypass hole and a bypass channel are machined on the stationary volute. The bypass hole is connected to the compression chamber, and the bypass hole is connected to the inlet of the solenoid valve through the bypass channel. The outlet of the solenoid valve is connected to the intake chamber. When the solenoid valve is in the open state, the solenoid valve connects the bypass hole to the intake chamber. When the solenoid valve is in the closed state, the bypass channel is closed.

[0007] In this solution, the connection between the bypass channel and the suction chamber is controlled by a solenoid valve. Compared to related technologies, this solution eliminates the need for complex mechanical devices to control the bypass port, simplifying the compressor structure and reducing system complexity and failure rate. Simplifying the compressor structure improves its efficiency and reduces maintenance costs. Furthermore, at least part of the solenoid valve controlling the bypass connection is located outside the housing, minimizing its space occupancy and freeing up space for other components, thus reducing the complexity of the compressor's internal layout.

[0008] In some technical solutions, the compressor may optionally include a connecting pipe, the first end of which is connected to a bypass channel, the second end of which is connected to the inlet of a solenoid valve, the connecting pipe passing through the housing, and the solenoid valve located outside the housing.

[0009] The bypass channel and the inlet of the solenoid valve are connected by a connecting pipe. One part of the connecting pipe is located inside the housing, thus connecting the connecting pipe to the bypass channel, while the other part is located outside the housing, thus connecting the connecting pipe to the solenoid valve. Therefore, this solution allows the solenoid valve to be directly installed outside the housing, without occupying internal space. The external location of the solenoid valve also facilitates maintenance.

[0010] In some technical solutions, optionally, the housing includes: a top cover and an outer shell, the top cover being connected to the outer shell, and the outer shell having a mounting hole; the connecting pipe includes: a first sub-pipe, a second sub-pipe, and a third sub-pipe, the first sub-pipe being connected to a bypass channel, the third sub-pipe being connected to the inlet of a solenoid valve, the first sub-pipe and the third sub-pipe being connected through the second sub-pipe, the third sub-pipe passing through the mounting hole, the first sub-pipe and the third sub-pipe both including a portion extending radially along the compressor and a portion extending axially, and the second sub-pipe extending axially along the compressor.

[0011] The top cover and the outer shell are connected to each other. For example, the top cover can be fixed to the outer shell by welding. The connection position of the top cover and the outer shell is usually located in the same radial plane as the static vortex. If the connecting pipe extends directly along the radial direction of the static vortex, the connecting pipe needs to pass through the connection position of the top cover and the outer shell, thereby destroying the connection stability between the top cover and the outer shell.

[0012] The connecting pipe consists of three sections. The first sub-pipe is connected to the bypass channel, the third sub-pipe is connected to the solenoid valve, and the second sub-pipe connects the first and third sub-pipes. The first and third sub-pipes extend radially along the compressor, while the second sub-pipe extends axially along the compressor. Therefore, there is an angle between the first and second sub-pipes and between the second and third sub-pipes. By extending the second sub-pipe axially along the compressor, the third sub-pipe can be offset from the connection position between the top cover and the outer casing. This eliminates the need for mounting holes at the connection position between the top cover and the outer casing, ensuring the stability of the connection between the top cover and the outer casing.

[0013] In some technical solutions, the compressor may optionally include: a fourth sub-tube, the first end of which is connected to the outlet of the solenoid valve, and the distance between the fourth sub-tube and the housing increases from the first end to the second end of the fourth sub-tube; a fifth sub-tube, the first end of which is connected to the second end of the fourth sub-tube, and the distance between the fifth sub-tube and the housing decreases from the first end to the second end of the fifth sub-tube; and a suction pipe connected to the housing, extending radially along the compressor, with the second end of the fifth sub-tube connected to the suction chamber via the suction pipe.

[0014] The solenoid valve and the intake chamber are connected via a fourth and a fifth sub-tube. The fourth sub-tube is connected to the outlet of the solenoid valve, and the fifth sub-tube is connected to the intake chamber. The fourth and fifth sub-tubes are interconnected. From the solenoid valve to the intake chamber, the distance between the fourth sub-tube and the housing gradually increases, while the distance between the fifth sub-tube and the housing gradually decreases. Therefore, there is an angle between the fourth and fifth sub-tubes. The connection points between the fourth and fifth sub-tubes maintain a certain distance from the housing, allowing the fourth and fifth sub-tubes to avoid interference with the structure on the outer surface of the housing.

[0015] In some technical solutions, optionally, there are two bypass holes, which are symmetrically arranged about the central axis of the stationary vortex disk.

[0016] Both bypass holes are connected to the compression chamber. When a portion of the gas needs to be bypassed, both bypass holes are simultaneously connected to the outlet of the solenoid valve. When the bypass function is not required, neither bypass hole is connected to the outlet of the solenoid valve. This avoids uneven wear between the stationary and moving scrolls caused by uneven compression, which helps extend the service life of the compressor and ensures reliable operation of the compressor.

[0017] In some technical solutions, the bypass channel may optionally include: a first channel, wherein there are two first channels, and the two first channels are respectively connected to two bypass holes; a second channel, wherein the first end of the second channel is connected to the two first channels, the second end of the second channel penetrates the side wall of the stationary vortex disk, and the included angle between the two first channels is α, wherein α satisfies the following range: 30° < α < 75°.

[0018] Of the two first channels, one first channel is connected to one of the two bypass holes, and the other first channel is connected to the other of the two bypass holes. Both first channels are connected to a second channel, which merges the two first channels, allowing the two first channels to connect to the inlet of the solenoid valve through the second channel.

[0019] In this solution, the bypass channel is a Y-shaped channel. Compared with related technologies, this structure does not require multiple holes to be made on the internal components of the compressor, thereby reducing the number of parts and the difficulty of assembly, and lowering production costs.

[0020] In some technical solutions, the bypass hole may optionally include multiple sub-holes that extend along the axial direction of the compressor and communicate with the same compression chamber.

[0021] A bypass orifice comprises multiple sub-orifices, thus consisting of multiple small holes. These sub-orifices communicate with the same compression chamber, allowing gas within that chamber to be simultaneously discharged through multiple sub-orifices. The gas pressure within each compression chamber may differ. Due to the small diameter of each sub-orifice, it is difficult for each sub-orifice to simultaneously communicate with adjacent compression chambers; the bypass function is achieved only through a specific compression chamber, thus fulfilling the compressor's bypass requirements.

[0022] In some technical solutions, optionally, among multiple compression chambers, the compression chamber that communicates with the intake chamber is connected to a bypass hole.

[0023] One of the multiple compression chambers is connected to the intake chamber. Gas flowing from the intake chamber between the moving scroll and the stationary scroll first flows into the compression chamber connected to the intake chamber. The bypass hole is connected to this compression chamber. In the bypass operation, the gas discharged in advance by the bypass structure is basically equal to the intake pressure. The gas has not yet been compressed, so the compressor will not have ineffective compression under the bypass operation, reducing the compressor's ineffective compression work and meeting the compressor's bypass requirements while ensuring energy efficiency.

[0024] In some technical solutions, optionally, the flow rate of the solenoid valve is greater than 30 L / min, and the pressure loss of the solenoid valve is less than 10 kPa.

[0025] The solenoid valve in this design is a high-flow-rate valve, with a flow rate of at least 30 L / min, thus meeting the bypass requirements of the compressor. The pressure loss of the solenoid valve in this design must not exceed 10 kPa. Under bypass conditions, other pressure losses are minimal, thereby improving system efficiency and performance.

[0026] Secondly, this utility model proposes a refrigeration device, including a compressor as described in the first aspect.

[0027] Additional aspects and advantages of this invention will become apparent in the following description or may be learned by practice of this invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 A schematic diagram of the compressor structure in an embodiment of this utility model is shown;

[0030] Figure 2 A schematic diagram of the compressor structure in an embodiment of this utility model is shown;

[0031] Figure 3 A partial structural schematic diagram of the compressor in an embodiment of this utility model is shown;

[0032] Figure 4 A partial structural schematic diagram of the compressor in an embodiment of this utility model is shown;

[0033] Figure 5 A partial structural schematic diagram of the compressor in an embodiment of this utility model is shown;

[0034] Figure 6 A partial structural schematic diagram of the compressor in an embodiment of this utility model is shown;

[0035] Figure 7 A partial structural schematic diagram of the compressor in an embodiment of this utility model is shown;

[0036] Figure 8 A schematic diagram of the solenoid valve structure in an embodiment of this utility model is shown.

[0037] Figure label:

[0038] 100 Compressor, 110 Housing, 111 Intake chamber, 112 Top cover, 113 Outer shell, 114 Mounting hole, 120 Moving scroll, 121 Moving scroll end plate, 122 Moving scroll blade, 130 Stationary scroll, 131 Bypass hole, 132 Bypass channel, 133 First channel, 134 Second channel, 135 Sub-hole, 136 Stationary scroll end plate, 137 Stationary scroll blade, 140 Compression chamber, 150 Solenoid valve, 151 Inlet, 152 Outlet, 160 Connecting pipe, 161 First sub-pipe, 162 Second sub-pipe, 163 Third sub-pipe, 171 Fourth sub-pipe, 172 Fifth sub-pipe, 173 Intake pipe, 181 Divider plate, 182 Float assembly, 183 Back pressure plate, 184 Exhaust chamber, 185 Back pressure chamber. Detailed Implementation

[0039] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0041] The following reference Figures 1 to 8 This invention describes a compressor and refrigeration equipment provided according to some embodiments of the present invention.

[0042] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments of this utility model, a compressor 100 is provided. The compressor 100 includes: a housing 110, a moving scroll 120, a stationary scroll 130, and a solenoid valve 150. The housing 110 has an intake chamber 111. The moving scroll 120 and the stationary scroll 130 are both located inside the housing 110. The stationary scroll 130 and the moving scroll 120 enclose a plurality of compression chambers 140. The stationary scroll 130 is provided with a bypass hole 131 and a bypass channel 132. The bypass hole 131 communicates with the compression chambers 140, and the bypass channel 132 communicates with the bypass hole 131. At least a portion of the solenoid valve 150 is located outside the housing 110. The inlet 151 of the solenoid valve 150 communicates with the bypass hole 131 through the bypass channel 132, and the outlet 152 of the solenoid valve 150 communicates with the intake chamber 111.

[0043] The stationary scroll 130 and the moving scroll 120 are disposed within the housing 110, and the compression chamber 140 formed by the stationary scroll 130 and the moving scroll 120 is connected to the intake chamber 111. Since the moving scroll 120 can move relative to the stationary scroll 130, it can compress the gas in the compression chamber 140 during its movement. When the compressed gas increases to the exhaust pressure, the compressed high-temperature and high-pressure gas is discharged from the exhaust port on the stationary scroll 130.

[0044] The compressor 100 has bypass and non-bypass operating conditions. In the bypass operating condition, the solenoid valve 150 connects the bypass channel 132 with the suction chamber 111 to discharge some gas in advance through the bypass channel 132, thereby reducing the displacement, cooling capacity and energy consumption. In the non-bypass operating condition, the bypass channel 132 is closed, and normal compression begins as the volume of gas in the compression chamber 140 continuously decreases, thus realizing the variable capacity function of the compressor 100.

[0045] A bypass hole 131 and a bypass channel 132 are machined on the stationary volute 130. The bypass hole 131 is connected to the compression chamber 140. The bypass hole 131 and the inlet 151 of the solenoid valve 150 are connected through the bypass channel 132. The outlet 152 of the solenoid valve 150 is connected to the intake chamber 111. When the solenoid valve 150 is in the open state, the solenoid valve 150 connects the bypass hole 131 to the intake chamber 111. When the solenoid valve 150 is in the closed state, the bypass channel 132 is closed.

[0046] In this solution, the connection between the bypass channel 132 and the suction chamber 111 is controlled by a solenoid valve 150. Compared to related solutions, this solution eliminates the need for complex mechanical devices to control the opening and closing of the bypass port 131, simplifying the structure of the compressor 100 and reducing system complexity and failure rate. Simplifying the compressor 100's structure improves its efficiency and reduces maintenance costs and assembly difficulty. Furthermore, at least a portion of the solenoid valve 150 controlling the bypass connection is located outside the housing 110, reducing the space occupied by the solenoid valve 150 within the housing 110 and providing sufficient space for other components within the housing 110, thus simplifying the internal layout of the compressor 100.

[0047] Combination Figure 2 and Figure 3 As shown, in some embodiments, the compressor 100 may optionally include a connecting pipe 160, the first end of which is connected to a bypass channel 132, the second end of which is connected to the inlet 151 of a solenoid valve 150, the connecting pipe 160 passing through the housing 110, and the solenoid valve 150 located outside the housing 110.

[0048] The bypass channel 132 and the inlet 151 of the solenoid valve 150 are connected via a connecting pipe 160. A portion of the connecting pipe 160 is located inside the housing 110, thus connecting the connecting pipe 160 to the bypass channel 132. The other portion of the connecting pipe 160 is located outside the housing 110, thus connecting the connecting pipe 160 to the solenoid valve 150. Therefore, this design allows the solenoid valve 150 to be directly installed outside the housing 110, without occupying internal space. Furthermore, the external location of the solenoid valve 150 facilitates maintenance.

[0049] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, optionally, the housing 110 includes: an upper cover 112 and an outer shell 113, the upper cover 112 being connected to the outer shell 113, and the outer shell 113 having a mounting hole 114. The connecting pipe 160 includes: a first sub-pipe 161, a second sub-pipe 162, and a third sub-pipe 163, the first sub-pipe 161 communicating with a bypass channel 132, the third sub-pipe 163 communicating with the inlet 151 of the solenoid valve 150, the first sub-pipe 161 and the third sub-pipe 163 communicating through the second sub-pipe 162, the third sub-pipe 163 passing through the mounting hole 114, and both the first sub-pipe 161 and the third sub-pipe 163 including a radial ( Figure 2 The arrow at point R points to the extended portion and the axially extended portion, the second sub-tube 162 along the axial direction of the compressor 100 ( Figure 2 The arrow at point H points to the extension.

[0050] The upper cover 112 and the outer shell 113 in the housing 110 are connected to each other. For example, the upper cover 112 can be fixed to the outer shell 113 by welding. The connection position of the upper cover 112 and the outer shell 113 is usually located in the same radial plane as the stationary volute 130. If the connecting pipe 160 extends directly along the radial direction of the stationary volute 130, the connecting pipe 160 will need to pass through the connection position of the upper cover 112 and the outer shell 113, thereby destroying the connection stability between the upper cover 112 and the outer shell 113.

[0051] The connecting pipe 160 consists of three pipe sections. The first sub-pipe 161 connects to the bypass channel 132, the third sub-pipe 163 connects to the solenoid valve 150, and the second sub-pipe 162 connects the first sub-pipe 161 and the third sub-pipe 163. The second sub-pipe 162 extends axially along the compressor 100. This allows the first sub-pipe 161 and the third sub-pipe 163 to be staggered axially along the compressor, thus avoiding the need for a mounting hole 114 at the connection point between the upper cover 112 and the outer casing 113, ensuring the stability of the connection between the upper cover 112 and the outer casing 113. Therefore, a portion of the first sub-pipe 161 extends axially, and another portion extends radially. The radially extending portion of the first sub-pipe 161 connects to the bypass channel 132, and the axially extending portion connects to the second sub-pipe 162. Similarly, a portion of the third sub-tube 163 extends axially and another portion extends radially. The radially extending portion of the third sub-tube 163 is used to communicate with the inlet 151 of the solenoid valve 150, and the axially extending portion of the third sub-tube 163 is used to communicate with the second sub-tube 162.

[0052] Combination Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, in some embodiments, the compressor 100 may optionally further include a fourth sub-pipe 171, a fifth sub-pipe 172, and a suction pipe 173. The first end of the fourth sub-pipe 171 is connected to the outlet 152 of the solenoid valve 150, and the distance between the fourth sub-pipe 171 and the housing 110 increases from the first end to the second end of the fourth sub-pipe 171. The first end of the fifth sub-pipe 172 is connected to the second end of the fourth sub-pipe 171, and the distance between the fourth sub-pipe 171 and the housing 110 decreases from the first end to the second end of the fifth sub-pipe 172. The suction pipe 173 is connected to the housing 110 and extends radially along the compressor. The second end of the fifth sub-pipe 172 is connected to the suction chamber 111 through the suction pipe 173.

[0053] The solenoid valve 150 and the intake chamber 111 are connected by a fourth sub-pipe 171 and a fifth sub-pipe 172. The fourth sub-pipe 171 is connected to the outlet 152 of the solenoid valve 150, and the fifth sub-pipe 172 is connected to the intake chamber 111 through the intake pipe 173. The fourth sub-pipe 171 and the fifth sub-pipe 172 are interconnected. From the solenoid valve 150 to the intake chamber 111, the distance between the fourth sub-pipe 171 and the housing 110 gradually increases, while the distance between the fifth sub-pipe 172 and the housing 110 gradually decreases. Therefore, there is an angle between the fourth sub-pipe 171 and the fifth sub-pipe 172. The connection position between the fourth sub-pipe 171 and the fifth sub-pipe 172 maintains a certain distance from the housing 110, so that the fourth sub-pipe 171 and the fifth sub-pipe 172 can avoid the structure on the outer surface of the housing 110 and avoid interference between the fourth sub-pipe 171 and the structure on the outer surface of the housing 110.

[0054] The suction pipe 173 is mounted on the housing 110 and extends radially along the compressor. This structure facilitates the connection between the fifth sub-pipe 172 and the suction pipe 173 without bending the second end of the fifth sub-pipe 172, ensuring that the gas can pass smoothly through the fifth sub-pipe 172.

[0055] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, optionally, there are two bypass holes 131, which are symmetrically arranged about the central axis of the stationary volute 130.

[0056] Both bypass holes 131 are connected to the compression chamber 140. When a portion of the gas needs to be bypassed, both bypass holes 131 are simultaneously connected to the outlet 152 of the solenoid valve 150. When the bypass function is not required, neither bypass hole 131 is connected to the outlet 152 of the solenoid valve 150. This can prevent uneven wear between the stationary scroll 130 and the moving scroll 120 caused by uneven compression, which helps to extend the service life of the compressor 100 and ensures that the compressor 100 can operate reliably.

[0057] In some embodiments, the bypass channel 132 may optionally include: a first channel 133 and a second channel 134. There are two first channels 133, which are respectively connected to two bypass holes 131. The first end of the second channel 134 is connected to the two first channels 133, and the second end of the second channel 134 penetrates the side wall of the stationary vortex disk 130. The included angle between the two first channels 133 is α, which satisfies the following range: 30° < α < 75°.

[0058] Of the two first channels 133, one first channel 133 is connected to one of the two bypass holes 131, and the other first channel 133 is connected to the other bypass hole 131. Both first channels 133 are connected to a second channel 134, which merges the two first channels 133, allowing the two first channels 133 to connect to the inlet 151 of the solenoid valve 150 through the second channel 134.

[0059] The second end of the second channel 134 penetrates the side wall of the stationary vortex disk 130, allowing the second channel 134 to communicate with the connecting pipe 160. The included angle between the two first channels 133 is α, where 30° < α < 75°. Within this range, the two first channels 133 can be connected to the two bypass holes 131 respectively, without causing problems with gas flow due to excessively large included angles.

[0060] In this design, the bypass channel 132 is a Y-shaped channel. Compared with related technologies, this structure does not require multiple holes to be made in the internal components of the compressor 100, thereby reducing the number of parts and the difficulty of assembly, and lowering production costs.

[0061] Combination Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, the bypass hole 131 may optionally include a plurality of sub-holes 135, which extend along the axial direction of the compressor 100 and communicate with the same compression chamber 140.

[0062] A bypass port 131 includes multiple sub-ports 135, thus the bypass port 131 is composed of multiple small holes. The multiple sub-ports 135 in a bypass port 131 are connected to the same compression chamber 140, allowing gas in a compression chamber 140 to be discharged outwards simultaneously through multiple sub-ports 135. The gas pressure in each compression chamber 140 may be different. Due to the small diameter of each sub-port 135, it is not easy for each sub-port 135 to be connected to an adjacent compression chamber 140 simultaneously. The bypass function is achieved only through a specific compression chamber 140, thus meeting the bypass requirements of the compressor 100.

[0063] In some embodiments, optionally, in a plurality of compression chambers 140, the compression chamber 140 of the intake chamber 111 is connected to the bypass hole 131.

[0064] One of the multiple compression chambers 140 is connected to the intake chamber 111. Therefore, the gas flowing into the intake chamber 111 between the moving scroll 120 and the stationary scroll 130 first flows into the compression chamber 140 connected to the intake chamber 111, which is named the first compression chamber. The bypass hole 131 is connected to the first compression chamber. In bypass operation, the gas discharged in advance by the bypass structure is basically equal to the intake pressure. The gas has not yet been compressed, so the compressor 100 will not have ineffective compression under bypass operation, reducing the ineffective compression work of the compressor 100 and meeting the bypass requirements of the compressor 100 while ensuring energy efficiency.

[0065] In some embodiments, the flow rate of the solenoid valve 150 is optionally greater than 30 L / min, and the pressure loss of the solenoid valve 150 is less than 10 kPa.

[0066] The solenoid valve 150 in this design is a high-flow-rate valve, with a flow rate of at least 30 L / min, thus meeting the bypass requirements of the compressor 100. The pressure loss of the solenoid valve 150 in this design must not exceed 10 kPa. Under bypass conditions, other pressure losses are minimal, thereby improving system efficiency and performance.

[0067] In the embodiments of this utility model, compared with related technologies, the present technical solution mainly solves the following technical problems: First, it reduces the number of parts and assembly difficulty. The existing bypass structure of the compressor 100 requires the addition of multiple sets of diversion pipes or diversion channels to the internal and external components of the compressor 100, which increases the number of parts and assembly difficulty, thereby increasing production costs. The present technical solution opens a Y-shaped bypass channel 132 on the stationary scroll plate 130, and then the two bypass holes 131 converge together. The gas is led out to the high-flow solenoid valve 150 outside the housing 110 through the bypass channel 132. The opening and closing of the bypass channel 132 is controlled by the on / off state of the solenoid valve 150, which reduces the number of parts and assembly difficulty, and lowers production costs. Second, it simplifies the control system. Related technologies usually require multiple valve groups to control the switching of the bypass structure, which increases the complexity of the system and the failure rate. The present technical solution controls the opening and closing of the bypass channel 132 by the on / off state of a single high-flow solenoid valve 150, which simplifies the control system and reduces the failure rate. Third, improve reliability. Existing bypass structures may have leakage problems during use, affecting the performance and efficiency of compressor 100. This technical solution opens a Y-shaped bypass channel 132 on the stationary scroll plate 130, and leads the gas to the solenoid valve 150 outside the housing 110 through the bypass channel 132. This can reduce the possibility of leakage and improve reliability.

[0068] To achieve the above objectives, this technical solution mainly adopts the following technical means: 1. Two bypass holes 131 are opened on the stationary scroll 130 of the compressor 100. The function of these two bypass holes 131 is to realize gas flow. The specific position and size can be adjusted according to actual needs. 2. The two bypass holes 131 are brought together and led out to the solenoid valve 150 outside the housing 110 through the bypass channel 132. The opening and closing of the bypass channel 132 is controlled by the on / off state of the solenoid valve 150 to realize the control of gas flow. 3. The outlet 152 of the solenoid valve 150 can be connected to the suction pipe or to the low-pressure side of the housing 110. Different connection methods can be selected according to actual needs to achieve different functions. 4. Controlling the opening and closing of the bypass channel 132 by the on / off state of the solenoid valve 150 can reduce the number of parts and the assembly difficulty, and reduce production costs. At the same time, it can also simplify the control system, reduce the failure rate, and improve the reliability of use. 5. Two bypass holes 131 are made on the stationary volute 130, and then the two holes are joined together and led out to the solenoid valve 150 outside the housing 110. This can reduce the possibility of leakage and improve the reliability of use. 6. The on / off control of the solenoid valve 150 controls the opening and closing of the bypass channel 132, which can reduce costs and improve cost performance.

[0069] Compared with existing technologies, the beneficial effects of this technical solution are as follows: 1. Reduced number of parts and assembly difficulty: The bypass structure of the variable capacity compressor 100 in this embodiment mainly involves opening a Y-shaped bypass channel 132 on the stationary scroll plate 130. Then, two bypass channels 132 converge and are led out to the solenoid valve 150 outside the housing 110. Compared with existing technologies, this structure eliminates the need for multiple holes in the internal components of the compressor 100, thereby reducing the number of parts and assembly difficulty, and lowering production costs. 2. Simplified control system: The bypass structure in this embodiment controls the opening and closing of the bypass circuit by switching the solenoid valve 150 on and off. The outlet 152 of the solenoid valve 150 can be connected to the suction pipe or to the low-pressure side of the housing. Compared with existing technologies, this control method eliminates the need for complex mechanical devices to control the opening and closing of the holes, simplifying the control system and reducing system complexity and failure rate. 3. Improved efficiency: During use, the bypass structure in this embodiment, due to the reduced number of parts and assembly difficulty, as well as the simplified control system, can improve efficiency and reduce maintenance costs. Furthermore, since the bypass structure of this embodiment can have a bypass hole 131 opened on the stationary scroll 130, the gas flow rate and pressure can be better controlled, improving the performance and efficiency of the equipment. 4. High flexibility: The bypass structure of this embodiment can control the opening and closing of the bypass circuit through the on / off control of the solenoid valve 150, thus controlling the gas flow rate and pressure according to actual needs, improving the system's flexibility and adaptability. In summary, compared with the prior art, the bypass structure of the variable capacity compressor 100 of this embodiment has advantages such as reducing the number of parts and assembly difficulty, simplifying the control system, improving efficiency and flexibility, and has great practical value.

[0070] In this embodiment, the compressor 100 can be a variable displacement scroll compressor 100. The variable displacement compressor 100 includes: an upper cover 112, a partition plate 181, a float assembly 182, a back pressure plate 183, a stationary scroll 130, a bypass channel 132, a moving scroll 120, a solenoid valve 150, etc. The upper cover 112 and the partition plate 181 form an exhaust channel, forming an exhaust chamber 184. The partition plate 181 and the float assembly 182 are attached to each other, which can separate the intake chamber 111 and the exhaust chamber 184. The cavity between the float assembly 182 and the back pressure plate 183 is the back pressure chamber 185. The stationary scroll 130 is connected to the bypass channel 132 and the solenoid valve 150. The moving scroll 120 and the stationary scroll 130 form compression chambers 140 with different pressures in the variable displacement scroll compressor 100, which are respectively referred to as the first compression chamber 140, the second compression chamber, and the third compression chamber. The first compression chamber 140 is connected to the bypass hole 131. By controlling the opening and closing of the solenoid valve 150, the volume of the compressor 100 can be changed, which is the variable capacity scroll compressor 100.

[0071] Two sets of bypass holes 131 are opened in the axial direction of the stationary scroll plate 130, and a Y-shaped bypass channel 132 is opened in the horizontal direction of the stationary scroll plate 130. The two ends of the Y-shaped bypass channel 132 are respectively connected to the two sets of bypass holes 131. The bypass holes 131 are connected to the first compression chamber 140 formed by the moving scroll plate 120 and the stationary scroll plate 130. The Y-shaped channel passes through the housing 110 through the connecting pipe 160 and is connected to the inlet 151 of the solenoid valve 150 outside the housing 110. The outlet 152 of the solenoid valve 150 is connected to the suction port of the compressor 100 through the fourth sub-pipe 171 and the fifth sub-pipe 172. In this embodiment, the solenoid valve 150 is a normally open valve. When the refrigeration equipment is operating at low load, the solenoid valve 150 is de-energized, and the gas in the first compression chamber 140 is discharged through the bypass hole 131, enters the solenoid valve 150 through the bypass channel 132, and then returns to the suction chamber 111 of the compressor 100 through the solenoid valve 150, thereby enabling the compressor 100 to operate at partial load. When the compressor 100 needs to operate at full load, the solenoid valve 150 is energized, the valve core actuates, and the bypass channel 132 between the stationary scroll plate 130 and the suction chamber 111 is blocked. The solenoid valve 150 involved in this embodiment is a high-flow-rate valve with a flow rate greater than 30 L / min.

[0072] The moving scroll 120 includes a moving scroll end plate 121 and a spiral moving scroll blade 122 formed on one side of the moving scroll end plate 121.

[0073] The stationary vortex disk 130 component includes a stationary vortex end plate 136, a spiral stationary vortex blade 137 formed on one side of the stationary vortex end plate 136, and a recess formed with a back pressure plate 183. The recess is connected to one of a series of compression chambers 140 formed between the moving vortex blade 122 and the stationary vortex blade 137 via a medium pressure channel.

[0074] The float assembly 182, together with the recesses formed by the stationary vortex disk 130 and the back pressure plate 183 assembly, forms the back pressure cavity 185.

[0075] The solenoid valve 150 assembly is installed outside the housing 110, with one end connected to the stationary vortex plate 130 via a Z-shaped tube, and the other end connected to the suction pipe or the housing 110 on the suction side via an L-shaped tube.

[0076] The opening and closing of the solenoid valve 150 can change the suction volume of the compressor 100, thereby changing the displacement of the compressor 100.

[0077] In the embodiments of this utility model, a refrigeration device is proposed, which includes the compressor in any of the above embodiments and can achieve the same technical effect, and will not be described again here.

[0078] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0079] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0080] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A compressor, characterized in that, include: A housing, wherein an air intake chamber is provided inside the housing; The moving scroll plate is located inside the housing; A stationary volute is located inside the housing. The stationary volute and the moving volute enclose a plurality of compression chambers. The stationary volute is provided with a bypass hole and a bypass channel. The bypass hole communicates with the compression chambers, and the bypass channel communicates with the bypass hole. A solenoid valve, at least a portion of which is located outside the housing, the inlet of which is connected to the bypass hole via the bypass channel, and the outlet of which is connected to the intake chamber.

2. The compressor according to claim 1, characterized in that, The compressor also includes: A connecting pipe, the first end of which is connected to the bypass channel, and the second end of which is connected to the inlet of the solenoid valve, the connecting pipe passing through the housing, and the solenoid valve located outside the housing.

3. The compressor according to claim 2, characterized in that, The housing includes: a top cover and a bottom cover, the top cover being connected to the bottom cover, and the bottom cover having mounting holes; The connecting pipe includes a first sub-pipe, a second sub-pipe, and a third sub-pipe. The first sub-pipe is connected to the bypass channel, and the third sub-pipe is connected to the inlet of the solenoid valve. The first sub-pipe and the third sub-pipe are connected through the second sub-pipe. The third sub-pipe passes through the mounting hole. Both the first sub-pipe and the third sub-pipe include a portion extending radially along the compressor and a portion extending axially. The second sub-pipe extends axially along the compressor.

4. The compressor according to claim 1, characterized in that, The compressor also includes: The fourth sub-tube has its first end connected to the outlet of the solenoid valve, and the distance between the fourth sub-tube and the housing increases from the first end to the second end of the fourth sub-tube. The fifth sub-tube has a first end connected to the second end of the fourth sub-tube, and the distance between the fifth sub-tube and the housing decreases from the first end to the second end of the fifth sub-tube. The suction pipe is connected to the housing and extends radially along the compressor. The second end of the fifth sub-pipe is connected to the suction chamber through the suction pipe.

5. The compressor according to any one of claims 1 to 4, characterized in that, The number of bypass holes is two, and the two bypass holes are symmetrically arranged about the central axis of the stationary vortex disk.

6. The compressor according to claim 5, characterized in that, The bypass channel includes: The first channel has two channels, and the two first channels are respectively connected to the two bypass holes; The second channel has a first end that connects to the two first channels, and a second end that penetrates the sidewall of the static vortex disk. The included angle between the two first channels is α, which satisfies the following range: 30° < α < 75°.

7. The compressor according to any one of claims 1 to 4, characterized in that, The bypass hole includes a plurality of sub-holes that extend along the axial direction of the compressor and that communicate with the same compression chamber.

8. The compressor according to any one of claims 1 to 4, characterized in that, In the multiple compression chambers, the compression chamber that communicates with the intake chamber is connected to the bypass hole.

9. The compressor according to any one of claims 1 to 4, characterized in that, The flow rate of the solenoid valve is greater than 30 L / min, and the pressure loss of the solenoid valve is less than 10 kPa.

10. A refrigeration device, characterized in that, include: The compressor as described in any one of claims 1 to 9.

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