Fixed scroll assembly and scroll compressor

Abstract

The present invention relates to a fixed scroll assembly and a scroll compressor, wherein the fixed scroll assembly includes a fixed scroll and a guide member, the periphery of the fixed scroll is provided with a mounting through hole matching the guide member, the mounting through hole is arranged along the axial direction of the fixed scroll, the guide member is inserted into the mounting through hole, the side wall of the guide member is provided with an annular groove, and a buffer cavity is formed with the side wall of the mounting through hole, or the side wall of the mounting through hole is provided with an annular groove, and a buffer cavity is formed with the side wall of the guide member, and the buffer cavity can be filled with a buffer fluid. During use, the buffer fluid is filled in the buffer cavity, so that when the fixed scroll moves radially relative to the guide member, the buffer fluid can play a certain buffering role on the fixed scroll, effectively reducing the sound of the collision between the fixed scroll and the guide member, thereby reducing the generation of noise.

Description

Technical Field

[0001] The present invention relates to the field of compressors, and in particular to a fixed scroll assembly and a scroll compressor. Background Art

[0002] In a scroll compressor, the compression process of the refrigerant is mainly achieved through the relative movement between the movable scroll and the stationary scroll. Therefore, during use, the sealing of the cavity formed between the movable scroll and the stationary scroll is required to be relatively high. To this end, the stationary scroll is set to a structure with axial flexibility so that the stationary scroll can be pressed against the movable scroll under the action of the pressure in the medium-pressure chamber. The axial flexibility of the stationary scroll is generally achieved by providing a through hole on the stationary scroll that is sleeved on the guide column and then fixing the guide column on the bracket. The stationary scroll can float axially relative to the guide column to achieve the above-mentioned axial flexibility effect. Based on this, when the stationary scroll is subjected to a radial force, there is relative movement between the stationary scroll and the guide column, resulting in collision and causing noise. Summary of the Invention

[0003] Based on this, it is necessary to provide a fixed scroll assembly and a scroll compressor to reduce the noise generated during the operation process.

[0004] A static scroll assembly comprises a static scroll and a guide member, wherein the periphery of the static scroll is provided with a mounting through hole matching the guide member, the mounting through hole is arranged along the axial direction of the static scroll, the guide member is inserted into the mounting through hole, the side wall of the guide member is provided with an annular groove, and forms a buffer cavity with the side wall of the mounting through hole; or the side wall of the mounting through hole is provided with an annular groove, and forms a buffer cavity with the side wall of the guide member, and the buffer cavity can be filled with a buffer fluid.

[0005] The above solution provides a fixed scroll assembly, wherein the fixed scroll is axially floated by the cooperation between the mounting through-hole and the guide member. During use, the buffer chamber is filled with a buffer fluid, so that when the fixed scroll moves radially relative to the guide member, the buffer fluid can provide a certain buffering effect on the fixed scroll, effectively reducing the sound of the impact between the fixed scroll and the guide member, thereby reducing noise generation.

[0006] In one embodiment, the fixed scroll assembly further includes an upper sealing ring and a lower sealing ring both of which are arranged between the side wall of the guide member and the side wall of the mounting through hole, the upper sealing ring is located above the buffer chamber, and the lower sealing ring is located below the buffer chamber.

[0007] In one embodiment, an annular placement groove is provided on the side wall of the guide member at a position corresponding to the upper sealing ring and / or the lower sealing ring, for placing the corresponding sealing ring; or an annular placement groove is provided on the side wall of the mounting through hole at a position corresponding to the upper sealing ring and / or the lower sealing ring, for placing the corresponding sealing ring.

[0008] In one embodiment, the fixed scroll is provided with a guide channel, one end of the guide channel is communicated with the exhaust chamber of the fixed scroll, and the other end of the guide channel is communicated with the buffer chamber.

[0009] In one embodiment, the fixed scroll assembly further includes a first joint assembly, the input end of the first joint assembly is connected to the guide channel, and the output end of the first joint assembly is connected to the buffer chamber, for introducing the buffer fluid in the exhaust chamber into the buffer chamber.

[0010] In one embodiment, the outer edge of the static scroll disk is circumferentially provided with four mounting through holes, and there are four guide members, which correspond one-to-one to the mounting through holes to form two groups of adjacent buffer chambers. There are two first joint assemblies and two guide channels, and the guide channels correspond one-to-one to the first joint assemblies. The input end of the first joint assembly is connected to the corresponding guide channel, and the first joint assembly includes two output ends, which are respectively connected to the two buffer chambers in the same group.

[0011] In one embodiment, the first joint assembly includes a first diverter joint, a first output pipe and a second output pipe, the first diverter joint has an inlet and two outlets, the inlet of the first diverter joint is connected to the corresponding guide channel, the inlet of the first output pipe is connected to one outlet of the first diverter joint, the inlet of the second output pipe is connected to the other outlet of the first diverter joint, and the outlet of the first output pipe and the outlet of the second output pipe are respectively connected to two buffer chambers in the same group.

[0012] In one embodiment, the surface where the inlet of the first diverter joint is located is a connecting surface, and a mating surface is provided at the position where the outlet of the guide channel on the fixed scroll plate is located. The connecting surface can be fitted with the mating surface so that the outlet of the guide channel is opposite to the inlet of the first diverter joint.

[0013] In one embodiment, the four mounting through holes are evenly spaced around the circumference of the static vortex disk, the two guide channels are arranged along the radial direction of the static vortex disk, and the two guide channels are arranged opposite to each other, and one end of the guide channel connected to the corresponding first joint assembly is located between the corresponding two mounting through holes.

[0014] In one embodiment, four lugs are provided on the circumference of the outer edge of the static scroll disk, and the four lugs are evenly spaced along the circumference of the static scroll disk. The four mounting through holes are respectively provided on the four lugs, and an inlet hole is provided on the side of the lug close to the corresponding first joint assembly. One end of the inlet hole is connected to the corresponding buffer chamber, and the other end of the inlet hole is connected to the output end of the corresponding first joint assembly.

[0015] In one embodiment, the static vortex disk assembly further includes a second joint assembly, a partition plate and an upper cover, the partition plate is arranged above the static vortex disk, and the upper cover is arranged above the partition plate to form a high-pressure exhaust chamber, the high-pressure exhaust chamber is connected to the exhaust chamber of the static vortex disk, the side wall of the high-pressure exhaust chamber is provided with an output channel, one end of the second joint assembly is connected to the output channel, and the other end of the second joint assembly is connected to the buffer chamber, which is used to introduce the buffer fluid in the high-pressure exhaust chamber into the buffer chamber.

[0016] In one embodiment, the outer edge of the partition plate is tilted downward to form a buffer fluid deposition area in the high-pressure exhaust chamber, and the output channel is provided at the downward tilted portion of the partition plate and communicates with the deposition area.

[0017] In one embodiment, one end of the second connector assembly connected to the output channel is inserted into the output channel, and the portion of the second connector assembly inserted into the output channel is a mounting section. An annular limiting groove is provided on the outer wall of the mounting section, and a sealing ring is provided in the limiting groove. The sealing ring is pressed between the mounting section and the side wall of the output channel.

[0018] In one embodiment, the outer edge of the static scroll disk is circumferentially provided with four mounting through holes, and there are four guide members, which correspond one-to-one to the mounting through holes to form two groups of adjacent buffer chambers. There are two second joint assemblies and two output channels, and the second joint assemblies correspond one-to-one to the output channels. Each second joint assembly corresponds to a group of adjacent buffer chambers, and each second joint assembly includes a second diverter joint, a third output pipe and a fourth output pipe. The second diverter joint has an inlet and two outlets, and the inlet of the second diverter joint is connected to the output channel. The inlet of the third output pipe is connected to an outlet of the second diverter joint, and the inlet of the fourth output pipe is connected to another outlet of the second diverter joint. The outlet of the third output pipe and the outlet of the fourth output pipe are respectively connected to two buffer chambers in the same group.

[0019] A scroll compressor comprises the above-mentioned fixed scroll assembly.

[0020] The above scheme provides a scroll compressor, which adopts the static scroll assembly described in any of the above embodiments, so that the static scroll can satisfy axial floating and, when subjected to radial force, will be buffered by the buffer fluid in the buffer chamber, effectively reducing the impact between the static scroll and the guide member, thereby reducing the generation of noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the scroll compressor according to this embodiment;

[0022] Figure 2 is a cross-sectional view of the non-orbiting scroll assembly in one embodiment;

[0023] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0024] Figure 4 for Figure 2 A schematic structural diagram of the fixed scroll assembly;

[0025] Figure 5 for Figure 4 A schematic structural diagram of the fixed scroll in the fixed scroll assembly;

[0026] Figure 6 for Figure 4 A schematic structural diagram of the first joint assembly in the fixed scroll assembly;

[0027] Figure 7 is a cross-sectional view of a fixed scroll assembly in another embodiment;

[0028] Figure 8 for Figure 7 A schematic structural diagram of the fixed scroll assembly;

[0029] Figure 9 for Figure 7 A schematic structural diagram of the fixed scroll in the fixed scroll assembly;

[0030] Figure 10 for Figure 7 A schematic structural diagram of the second joint assembly in the fixed scroll assembly.

[0031] Description of reference numerals:

[0032] 10. Scroll compressor, 11. Stationary scroll assembly, 111. Stationary scroll, 1111. Mounting through hole, 1112. Guide channel, 1113. Exhaust chamber, 1114. Mating surface, 1115. Lug, 1116. Inlet hole, 112. Guide member, 113. Buffer chamber, 114. Upper sealing ring, 115. Lower sealing ring, 116. First joint assembly, 1161. First diverter joint, 1162. First output pipe, 1163. Second output pipe, 1164. Connecting surface, 117. Second joint assembly, 1171. Second diverter joint, 1172. Third output pipe, 1173. Fourth output pipe, 118. Partition plate, 1181. High-pressure exhaust chamber, 1182. Deposition area, 119. Upper cover, 12. Limit screw, 13. Orbital scroll, 14. Upper bracket. DETAILED DESCRIPTION

[0033] like Figure 1 、 Figure 2 and Figure 7 As shown, in one embodiment, a static scroll assembly 11 is provided, including a static scroll 111 and a guide member 112, the periphery of the static scroll 111 is provided with a mounting through hole 1111 matching the guide member 112, the mounting through hole 1111 is arranged along the axial direction of the static scroll 111, the guide member 112 is inserted into the mounting through hole 1111, the side wall of the guide member 112 is provided with an annular groove, and a buffer chamber 113 is formed with the side wall of the mounting through hole 1111; or the side wall of the mounting through hole 1111 is provided with an annular groove, and a buffer chamber 113 is formed with the side wall of the guide member 112, and the buffer chamber 113 can be filled with a buffer fluid.

[0034] The above solution provides a fixed scroll assembly 11, wherein the axial floating of the fixed scroll 111 is guided by the cooperation between the mounting through hole 1111 and the guide member 112. During use, the buffer chamber 113 is filled with a buffer fluid, so that when the fixed scroll 111 moves radially relative to the guide member 112, the buffer fluid can provide a certain buffering effect on the fixed scroll 111, effectively reducing the sound of the collision between the fixed scroll 111 and the guide member 112, thereby reducing the generation of noise.

[0035] Specifically, the buffer fluid can be a fluid introduced from the outside, or it can be high-pressure refrigeration oil and / or high-pressure refrigerant in the scroll compressor 10. Moreover, the guide member 112 is mainly used to cooperate with the mounting through hole 1111 to achieve the axial floating of the fixed scroll assembly 11. Specifically, Figure 1 、 Figure 2 and Figure 6As shown, the guide member 112 may be a guide cylinder, which is fixed to the upper bracket 14 for supporting the orbiting scroll 13 by a set screw 12. Alternatively, the guide member 112 may be a device directly connected to the upper bracket 14, as long as it can cooperate with the mounting through hole 1111 to provide guidance for the axially floating fixed scroll 111.

[0036] The formation of the buffer chamber 113 can be achieved by providing the annular groove on the side wall of the guide member 112, or by providing an annular groove on the side wall of the mounting hole 1111, as long as the buffer chamber 113 is formed between the side wall of the mounting hole 1111 and the side wall of the guide member 112, that is, as long as the buffer fluid in the buffer chamber 113 can buffer the radial movement of the static scroll plate 111 and reduce the collision between the static scroll plate 111 and the guide member 112, it will be sufficient.

[0037] Furthermore, in one embodiment, Figure 3 As shown, the fixed scroll assembly 11 also includes an upper sealing ring 114 and a lower sealing ring 115, both of which are arranged between the side wall of the guide member 112 and the side wall of the mounting through hole 1111. The upper sealing ring 114 is located above the buffer chamber 113, and the lower sealing ring 115 is located below the buffer chamber 113.

[0038] Since the fixed scroll 111 needs to float axially relative to the guide member 112, and the buffer chamber 113 needs to be provided with a certain degree of sealing, the upper sealing ring 114 and the lower sealing ring 115 are provided so that the buffer fluid in the buffer chamber 113 can be reliably located in the buffer chamber 113 under the sealing action of the upper sealing ring 114 and the lower sealing ring 115. Furthermore, due to the material properties of the upper sealing ring 114 and the lower sealing ring 115, the upper sealing ring 114 and the lower sealing ring 115 do not significantly resist the axial floating of the fixed scroll 111.

[0039] Furthermore, in one embodiment, Figure 3As shown, the side wall of the guide member 112 and the position corresponding to the upper sealing ring 114 and / or the lower sealing ring 115 are provided with an annular placement groove for placing the corresponding sealing ring; or the side wall of the mounting through hole 1111 and the position corresponding to the upper sealing ring 114 and / or the lower sealing ring 115 are provided with an annular placement groove for placing the corresponding sealing ring. The placement groove provides a placement space for the corresponding sealing ring and also acts as a limiter to ensure that the upper sealing ring 114 and the lower sealing ring 115 can be in the corresponding position during the axial floating of the fixed scroll 111, and the upper sealing ring 114 and the lower sealing ring 115 will not deviate, thereby ensuring the sealing reliability of the buffer chamber 113.

[0040] Furthermore, in one embodiment, the placement groove is arranged on the side wall where the annular groove is provided, that is, if the annular groove is arranged on the guide member 112, the placement groove is arranged on the side wall of the guide member 112; if the annular groove is arranged on the side wall of the mounting through hole 1111, the placement groove is arranged on the side wall of the mounting through hole 1111. In this way, it can be effectively guaranteed that the upper sealing ring 114 is always located above the buffer cavity 113, and the lower sealing ring 115 is always located below the buffer cavity 113, further effectively ensuring the sealing of the buffer cavity 113.

[0041] Furthermore, in one embodiment, Figure 2 The fixed scroll 111 is provided with a guide channel 1112, one end of which is in communication with the exhaust chamber 1113 of the fixed scroll 111, and the other end of which is in communication with the buffer chamber 113. This allows high-pressure refrigerant in the exhaust chamber 1113 of the fixed scroll 111 to be introduced into the buffer chamber 113 for use as a buffer fluid.

[0042] Specifically, in one embodiment, Figure 2 and Figure 4 As shown, the fixed scroll assembly 11 further includes a first joint assembly 116. The input end of the first joint assembly 116 is in communication with the guide channel 1112, and the output end of the first joint assembly 116 is in communication with the buffer chamber 113, for introducing the buffer fluid in the exhaust chamber 1113 of the fixed scroll 111 into the buffer chamber 113. The provision of the first joint assembly 116 indirectly achieves communication between the guide channel 1112 and the buffer chamber 113, thereby introducing the high-pressure refrigerant in the exhaust chamber 1113 at one end of the guide channel 1112 into the buffer chamber 113.

[0043] Alternatively, by properly configuring the guide channel 1112, the high-pressure refrigerant in the exhaust chamber 1113 of the fixed scroll 111 can be directly introduced into the buffer chamber 113 through the guide channel 1112. Furthermore, when there are multiple buffer chambers 113, multiple guide channels 1112 can be provided to achieve the process of introducing the high-pressure refrigerant into each buffer chamber 113.

[0044] Furthermore, in one embodiment, Figure 4 and Figure 5 As shown, the outer circumference of the static vortex disk 111 is circumferentially provided with four mounting through holes 1111, and there are four guide members 112. The guide members 112 correspond one-to-one to the mounting through holes 1111 to form two groups of adjacent buffer chambers 113. There are two first joint assemblies 116 and two guide channels 1112. The guide channels 1112 correspond one-to-one to the first joint assemblies 116. The input end of the first joint assembly 116 is connected to the corresponding guide channel 1112. The first joint assembly 116 includes two output ends, and the two output ends are respectively connected to the two buffer chambers 113 in the same group.

[0045] In order to improve the accuracy of the axial floating of the fixed scroll assembly 11, four guide members 112 and mounting holes 1111 are provided on the circumference of the fixed scroll 111, thereby forming two groups of adjacent buffer chambers 113. Figure 4 As shown, a first joint assembly 116 is provided between each group of adjacent buffer cavities 113. The first joint assembly 116 is used to disperse and introduce the buffer fluid in one guide channel 1112 into a group of adjacent buffer cavities 113. Thus, the introduction of buffer fluid into four buffer cavities 113 is achieved through two guide channels 1112 and two first joint assemblies 116.

[0046] Optionally, the first joint assembly 116 may also be configured to have a structure with multiple outlets, that is, one first joint assembly 116 can implement the process of introducing buffer fluid into multiple buffer cavities 113 .

[0047] Specifically, in one embodiment, Figure 4 and Figure 6As shown, the first joint assembly 116 includes a first diverter joint 1161, a first output pipe 1162 and a second output pipe 1163. The first diverter joint 1161 has an inlet and two outlets. The inlet of the first diverter joint 1161 is connected to the corresponding guide channel 1112. The inlet of the first output pipe 1162 is connected to an outlet of the first diverter joint 1161, and the inlet of the second output pipe 1163 is connected to the other outlet of the first diverter joint 1161. The outlet of the first output pipe 1162 and the outlet of the second output pipe 1163 are respectively connected to two buffer chambers 113 in the same group.

[0048] like Figure 4 As shown, after the first diverter joint 1161 introduces the buffer fluid in a guide channel 1112, the buffer fluid is divided into two outlets in the first diverter joint 1161 and flows out. The buffer fluid flowing out from the two outlets of the first diverter joint 1161 enters the corresponding buffer cavity 113 under the guidance of the first output pipe 1162 and the second output pipe 1163 respectively.

[0049] Furthermore, specifically, the first output tube 1162 and the second output tube 1163 can be directly connected to the corresponding buffer chamber 113 to introduce the buffer fluid, or can be connected to the corresponding buffer chamber 113 to introduce the buffer fluid. Figure 5 As shown, by providing inlet holes 1116 around the buffer cavity 113, the first and second output tubes 1162 and 1163 are inserted into the corresponding inlet holes 1116, thereby indirectly connecting the first and second output tubes 1162 and 1163 with the corresponding buffer cavity 113 through the inlet holes 1116. The specific structure of the first and second output tubes 1162 and 1163 is determined by the position of the outlet of the first diverter joint 1161 and the position of the buffer cavity 113.

[0050] More specifically, in one embodiment, Figure 5 and Figure 6 As shown, the surface where the inlet on the first diverter joint 1161 is located is a connecting surface 1164, and a mating surface 1114 is provided at the position where the outlet of the guide channel 1112 on the fixed vortex disk 111 is located. The connecting surface 1164 can be fitted with the mating surface 1114, so that the outlet of the guide channel 1112 is opposite to the inlet of the first diverter joint 1161.

[0051] During use, the first flow diverter joint 1161 is connected to the position of the fixed scroll 111 where the flow guide channel 1112 is provided by screws or other connecting members. This allows the connecting surface 1164 on the first flow diverter joint 1161 to mate with the mating surface 1114 on the fixed scroll 111, and the inlet of the first flow diverter joint 1161 is arranged opposite to the outlet of the flow guide channel 1112, thereby achieving the transition of the buffer fluid from the flow guide channel 1112 to the first joint assembly 116.

[0052] More specifically, in one embodiment, Figure 4 and Figure 5 As shown, the four mounting holes 1111 are evenly spaced about the circumference of the fixed scroll 111. The two guide channels 1112 are both arranged radially along the fixed scroll 111 and are disposed opposite each other. The ends of the guide channels 1112 that communicate with the corresponding first joint assemblies 116 are located between the two corresponding mounting holes 1111. A group of adjacent buffer cavities 113 communicate with the first joint assembly 116 located therebetween, making the overall structure more compact.

[0053] Specifically, in one embodiment, Figure 5 As shown, four lugs 1115 are circumferentially provided on the outer edge of the fixed scroll 111. The four lugs 1115 are evenly spaced along the circumference of the fixed scroll 111. The four mounting through-holes 1111 are respectively provided on the four lugs 1115. Inlet holes 1116 are provided on the sides of the lugs 1115 near the corresponding first joint assemblies 116. One end of the inlet hole 1116 is connected to the corresponding buffer cavity 113, and the other end of the inlet hole 1116 is connected to the output end of the corresponding first joint assembly 116. The first joint assembly 116 is indirectly connected to the corresponding buffer cavity 113 through the corresponding inlet hole 1116.

[0054] Specifically, if Figure 4 As shown, when the first joint assembly 116 includes a first flow diversion joint 1161 , a first output pipe 1162 and a second output pipe 1163 , the inlet hole 1116 is connected to the first output pipe 1162 or the second output pipe 1163 of the corresponding first joint assembly 116 .

[0055] Furthermore, in one embodiment, Figure 7As shown, the static vortex assembly 11 also includes a second joint assembly 117, a partition plate 118 and an upper cover 119. The partition plate is arranged above the static vortex 111, and the upper cover 119 is arranged above the partition plate 118 to form a high-pressure exhaust chamber 1181. The high-pressure exhaust chamber 1181 is connected to the exhaust chamber 1113 of the static vortex 111, and the side wall of the high-pressure exhaust chamber 1181 is provided with an output channel. One end of the second joint assembly 117 is connected to the output channel, and the other end of the second joint assembly 117 is connected to the buffer chamber 113, which is used to introduce the buffer fluid in the high-pressure exhaust chamber 1181 into the buffer chamber 113.

[0056] The second joint assembly 117 allows the high-pressure refrigeration oil and high-pressure refrigerant in the high-pressure exhaust chamber 1181 to be introduced into the buffer chamber 113. The high-pressure refrigeration oil is less compressible, further enhancing the buffering and noise reduction effects. The high-pressure exhaust chamber 1181 formed between the partition plate 118 and the upper cover 119 is connected to the exhaust chamber 1113 of the fixed scroll 111. High-pressure refrigeration oil drawn into the high-pressure refrigerant will settle in the high-pressure exhaust chamber 1181, and the second joint assembly 117 can direct the deposited high-pressure refrigeration oil into the buffer chamber 113. Of course, the second joint assembly 117 can also direct the high-pressure refrigerant in the high-pressure exhaust chamber 1181 into the corresponding buffer chamber 113, achieving the purpose of buffering and noise reduction. Furthermore, since the partition plate 118 and upper cover 119 do not float up and down like the fixed scroll 111, the reliable conduction of the buffer fluid achieved by connecting the second joint assembly 117 to the high-pressure exhaust chamber 1181 is high.

[0057] Furthermore, in one embodiment, Figure 7 As shown, the outer edge of the partition plate 118 is tilted downward, forming a buffer fluid deposition area 1182 in the high-pressure exhaust chamber 1181 , and the output channel is arranged at the downward tilted portion of the partition plate 118 and is connected to the deposition area 1182 .

[0058] The deposition area 1182 is formed by tilting the outer edge of the partition plate 118 , so that the high-pressure refrigeration oil mainly accumulates in the deposition area 1182 , making it easier for the second joint assembly 117 to introduce the high-pressure refrigeration oil.

[0059] More specifically, in one embodiment, Figures 7 to 10As shown, one end of the second connector assembly 117 that is in communication with the output channel is inserted into the output channel. The portion of the second connector assembly 117 that is inserted into the output channel is a mounting section. The outer wall of the mounting section is provided with an annular limiting groove. A sealing ring is provided in the limiting groove. The sealing ring is pressed between the mounting section and the side wall of the output channel. Figure 7 and Figure 8 As shown, the second joint assembly 117 is inserted into the output channel, and a sealing ring is used to further improve the reliability of the connection and sealing of the second joint assembly 117 at the output channel.

[0060] Furthermore, in one embodiment, Figures 7 to 10 As shown, the outer edge of the fixed scroll plate 111 is circumferentially provided with four mounting through holes 1111, the guide members 112 are four, and the guide members 112 correspond one-to-one with the mounting through holes 1111 to form two groups of adjacent buffer chambers 113. There are two second joint assemblies 117 and two output channels, and the second joint assemblies 117 correspond one-to-one with the output channels. Each second joint assembly 117 corresponds to a group of adjacent buffer chambers 113, and each second joint assembly 117 includes a second diverter joint 1171, a third output The second flow diverter joint 1171 has one inlet and two outlets. The inlet of the second flow diverter joint 1171 is connected to the output channel. The inlet of the third output pipe 1172 is connected to one outlet of the second flow diverter joint 1171. The inlet of the fourth output pipe 1173 is connected to the other outlet of the second flow diverter joint 1171. The outlets of the third output pipe 1172 and the fourth output pipe 1173 are respectively connected to two buffer chambers 113 in the same group. Similar to the situation described above with the first joint assembly 116, the above solution utilizes two second joint assemblies 117 and two output channels to achieve the process of introducing buffer fluid into four buffer chambers 113.

[0061] Furthermore, in another embodiment, a scroll compressor 10 is provided, comprising the above-mentioned fixed scroll assembly 11 .

[0062] The above scheme provides a scroll compressor 10, which adopts the static scroll assembly 11 described in any of the above embodiments, so that the static scroll 111 can satisfy axial floating and, when subjected to radial force, will be buffered by the buffer fluid in the buffer chamber 113, effectively reducing the impact between the static scroll 111 and the guide member 112, thereby reducing the generation of noise.

[0063] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0064] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A fixed scroll assembly, characterized in that: The invention comprises a fixed scroll and a guide member, wherein the periphery of the fixed scroll is provided with a mounting through hole matching the guide member, the mounting through hole being arranged along the axial direction of the fixed scroll, the guide member being inserted into the mounting through hole, the side wall of the guide member being provided with an annular groove, and forming a buffer cavity with the side wall of the mounting through hole; or the side wall of the mounting through hole being provided with an annular groove, and forming a buffer cavity with the side wall of the guide member, and the buffer cavity can be filled with a buffer fluid; The fixed scroll is provided with a guide channel, one end of the guide channel is communicated with the exhaust chamber of the fixed scroll, and the other end of the guide channel is communicated with the buffer chamber; The fixed scroll assembly further includes a second joint assembly, a partition plate and an upper cover, the partition plate being arranged above the fixed scroll, the upper cover being arranged above the partition plate to form a high-pressure exhaust chamber, the high-pressure exhaust chamber being communicated with the exhaust chamber of the fixed scroll, an output channel being provided on a side wall of the high-pressure exhaust chamber, one end of the second joint assembly being communicated with the output channel, and the other end of the second joint assembly being communicated with the buffer chamber for introducing a buffer fluid in the high-pressure exhaust chamber into the buffer chamber; The outer edge of the partition plate is tilted downward to form a buffer fluid deposition area in the high-pressure exhaust chamber. The output channel is arranged at the downward tilted portion of the partition plate and communicates with the deposition area.

2. The fixed scroll assembly according to claim 1, characterized in that: It also includes an upper sealing ring and a lower sealing ring, both of which are arranged between the side wall of the guide member and the side wall of the mounting through hole. The upper sealing ring is located above the buffer cavity, and the lower sealing ring is located below the buffer cavity.

3. The fixed scroll assembly according to claim 2, characterized in that: An annular placement groove is provided on the side wall of the guide member and at the position corresponding to the upper sealing ring and / or the lower sealing ring, for placing the corresponding sealing ring; or an annular placement groove is provided on the side wall of the mounting through hole and at the position corresponding to the upper sealing ring and / or the lower sealing ring, for placing the corresponding sealing ring.

4. The fixed scroll assembly according to any one of claims 1 to 3, characterized in that: It also includes a first joint assembly, the input end of the first joint assembly is connected to the guide channel, and the output end of the first joint assembly is connected to the buffer cavity, which is used to introduce the buffer fluid in the exhaust cavity into the buffer cavity.

5. The fixed scroll assembly according to claim 4, characterized in that: The outer circumference of the static scroll disk is provided with four mounting through holes, and there are four guide members, which correspond one-to-one to the mounting through holes to form two groups of adjacent buffer chambers. There are two first joint assemblies and two guide channels, and the guide channels correspond one-to-one to the first joint assemblies. The input end of the first joint assembly is connected to the corresponding guide channel, and the first joint assembly includes two output ends, which are respectively connected to the two buffer chambers in the same group.

6. The fixed scroll assembly according to claim 5, characterized in that: The first joint assembly includes a first diverter joint, a first output pipe and a second output pipe. The first diverter joint has an inlet and two outlets. The inlet of the first diverter joint is connected to the corresponding guide channel. The inlet of the first output pipe is connected to one outlet of the first diverter joint. The inlet of the second output pipe is connected to the other outlet of the first diverter joint. The outlet of the first output pipe and the outlet of the second output pipe are respectively connected to two buffer chambers in the same group.

7. The fixed scroll assembly according to claim 6, characterized in that: The surface where the inlet of the first diverter joint is located is a connecting surface, and a mating surface is provided at the position where the outlet of the guide channel on the fixed scroll plate is located. The connecting surface can be fitted with the mating surface so that the outlet of the guide channel is opposite to the inlet of the first diverter joint.

8. The fixed scroll assembly according to claim 5, characterized in that: The four mounting through holes are evenly spaced around the circumference of the static vortex disk, the two guide channels are both arranged along the radial direction of the static vortex disk, and the two guide channels are arranged opposite to each other, and one end of the guide channel connected to the corresponding first joint assembly is located between the corresponding two mounting through holes.

9. The fixed scroll assembly according to claim 5, wherein: Four lugs are provided on the circumference of the outer edge of the static scroll disk, and the four lugs are evenly spaced along the circumference of the static scroll disk. The four mounting through holes are respectively provided on the four lugs, and an inlet hole is provided on the side of the lug close to the corresponding first joint assembly. One end of the inlet hole is connected to the corresponding buffer chamber, and the other end of the inlet hole is connected to the output end of the corresponding first joint assembly.

10. The fixed scroll assembly according to claim 1, wherein: One end of the second joint assembly that is connected to the output channel is inserted into the output channel. The part of the second joint assembly inserted into the output channel is a mounting section. An annular limiting groove is provided on the outer wall of the mounting section. A sealing ring is provided in the limiting groove. The sealing ring is pressed between the mounting section and the side wall of the output channel.

11. The fixed scroll assembly according to claim 1, wherein: The outer circumference of the static scroll disk is provided with 4 mounting through holes, and there are 4 guide members, which correspond one-to-one to the mounting through holes to form two groups of adjacent buffer chambers. There are two second joint assemblies and two output channels, and the second joint assemblies correspond one-to-one to the output channels. Each second joint assembly corresponds to a group of adjacent buffer chambers. Each second joint assembly includes a second diverter joint, a third output pipe and a fourth output pipe. The second diverter joint has an inlet and two outlets. The inlet of the second diverter joint is connected to the output channel. The inlet of the third output pipe is connected to an outlet of the second diverter joint, and the inlet of the fourth output pipe is connected to another outlet of the second diverter joint. The outlet of the third output pipe and the outlet of the fourth output pipe are respectively connected to two buffer chambers in the same group.

12. A scroll compressor, characterized in that: The fixed scroll assembly comprises the fixed scroll assembly according to any one of claims 1 to 11.

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