Compression assembly, refrigeration equipment and vehicle

Abstract

The utility model provides a compression assembly, refrigeration equipment and vehicle, compression assembly includes shell, orbiting scroll and static scroll, orbiting scroll is provided in the shell, orbiting scroll includes first disc body and first tooth, first tooth extends in spiral shape and is provided on the first disc body; the static vortex plate is arranged in the shell and comprises a second plate body and second teeth, the second teeth extend spirally and are arranged on the second plate body, and air suction cavities are formed between the second teeth and the first teeth; the orbiting scroll rotates for a circle relative to the static scroll, and the suction volume of the suction cavity is V; the inner diameter D of the shell, the diameter D1 of the first disc body, the diameter D2 of the second disc body and the volume V meet the following relation that (D * V) * D2 / D1 is larger than or equal to 7313 and smaller than or equal to 9577. By optimizing the inner diameter of the shell, the diameter of the disc body and the air suction volume of the air suction cavity, under the condition that the performance and reliability of the compressor are guaranteed, the diameter of the shell is reduced as much as possible, the displacement of the compressor is increased, and the miniaturization and large-displacement design of the compressor is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and specifically proposes a compression component, a refrigeration device and a vehicle. Background Art

[0002] At present, in the related technology, in order to reduce the production cost of the scroll compressor, most of the scroll compressors are miniaturized. However, the volume of the suction chamber of the miniaturized scroll compressor is smaller, resulting in lower working efficiency of the scroll compressor. It is difficult to set up the existing scroll compressors with both small overall volume and high working efficiency, and the comprehensiveness of the products is low. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0004] To this end, a first aspect of the present invention provides a compression assembly.

[0005] A second aspect of the present invention provides a refrigeration device.

[0006] A third aspect of the present invention provides a vehicle.

[0007] In view of this, the first aspect of the utility model provides a compression assembly, which includes a casing, a movable scroll and a fixed scroll, the movable scroll is arranged in the casing, the movable scroll includes a first disk body and a first tooth, the first tooth extends in a spiral shape and is arranged on the first disk body; the fixed scroll is arranged in the casing, the fixed scroll includes a second disk body and a second tooth, the second tooth extends in a spiral shape and is arranged on the second disk body, and an air suction chamber is provided between the second tooth and the first tooth.

[0008] The movable scroll rotates one circle relative to the fixed scroll, and the suction volume of the suction chamber is volume V; the inner diameter D of the shell, the diameter D1 of the first disk body, the diameter D2 of the second disk body and the volume V satisfy the following relationship: 7313≤(D×V)×D2 / D1≤9577; wherein, the units of the inner diameter D of the shell, the diameter D1 of the first disk body and the diameter D2 of the second disk body are all millimeters, and the unit of volume V is cubic centimeters.

[0009] The compression assembly proposed by the utility model comprises a shell, a movable scroll and a fixed scroll. The shell is the external structure of the compression assembly and provides a closed and protected environment for the working parts inside the compression assembly.

[0010] The movable scroll is disposed in the casing. Specifically, the movable scroll can rotate or swing in the casing.

[0011] The movable scroll is composed of a first disk body and a first tooth. The first disk body is the main part of the movable scroll and provides support for the first tooth. The first tooth extends in a spiral shape and is arranged on the first disk body. This design enables the movable scroll to effectively cooperate with the fixed scroll, thereby forming an air suction chamber between the two.

[0012] The fixed scroll corresponds to the movable scroll, and the fixed scroll is fixed and does not move. The fixed scroll includes a second disk body and a second tooth. The second disk body is the main part of the fixed scroll, providing a stable support for the second tooth. The second tooth extends in a spiral shape and corresponds to the first tooth. When the movable scroll moves, the space between the first tooth and the second tooth changes, thereby achieving gas compression.

[0013] The suction chamber is located between the second tooth and the first tooth. The suction chamber is where the gas is sucked in and begins to be compressed. As the orbiting scroll moves, the volume of the suction chamber gradually decreases, thereby compressing the gas.

[0014] The compression assembly realizes the gas intake, compression and discharge process through the cooperation between the orbiting scroll and the stationary scroll.

[0015] The movable scroll rotates one circle relative to the fixed scroll, and the suction volume of the suction chamber is volume V. The utility model defines the inner diameter D of the shell, the diameter D1 of the first disk body, the diameter D2 of the second disk body and the volume V.

[0016] Specifically, the inner diameter D of the housing determines the overall size and spatial layout of the compressor. The diameter D1 of the first disk and the diameter D2 of the second disk determine the size of the orbiting scroll and the fixed scroll. The volume V determines the amount of gas that the compressor can inhale per cycle. A larger volume can increase the displacement, but it may also lead to reduced compression efficiency.

[0017] The utility model sets 7313≤(D×V)×D2 / D1≤9577, wherein the units of the inner diameter D of the shell, the diameter D1 of the first disk body, and the diameter D2 of the second disk body are all in millimeters, and the unit of the volume V is in cubic centimeters. By limiting the upper limit of (D×V)×D2 / D1, it can be ensured that the inner diameter D of the shell will not be too large under a given displacement, thereby reducing the overall size of the compressor. By setting the lower limit of (D×V)×D2 / D1, it can be ensured that under a given shell size, by optimizing the disk body diameter and the suction chamber volume, the largest possible displacement can be achieved.

[0018] While keeping the displacement unchanged, the overall size of the compressor can be reduced by reducing the inner diameter D of the shell and increasing the ratio of the volume V of the suction chamber to the diameter D1 of the first disk. While keeping the size of the shell unchanged, the displacement can be increased by increasing the diameter D2 of the second disk and / or the volume V of the suction chamber, thereby improving the performance of the compressor.

[0019] The utility model makes the inner diameter D of the shell, the diameter D1 of the first disk body, the diameter D2 of the second disk body and the volume V of the air suction chamber meet the above-mentioned "size balance" range, and realizes small shell diameter and large displacement, that is, under the premise of ensuring the performance of the compression component, the shell diameter is reduced as much as possible and the displacement of the compression component is increased. It not only ensures the good performance of the compression component, but also makes the compression component reliable in use and more economical in manufacturing.

[0020] In summary, the compression assembly proposed in the utility model, by setting the above-mentioned parameter relationship, provides a method for optimizing the inner diameter of the shell, the disk diameter and the suction chamber volume while maintaining the performance and reliability of the compressor, so that the inner diameter D of the shell, the diameter D1 of the first disk, the diameter D2 of the second disk and the volume V of the suction chamber satisfy 7313≤(D×V)×D2 / D1≤9577. While ensuring the performance and reliability of the compressor, the shell diameter is reduced as much as possible, the compressor displacement is increased, and the miniaturization and large-displacement design of the compressor are realized.

[0021] In addition, the compression assembly in the above technical solution provided by the utility model may also have the following additional technical features:

[0022] In some technical solutions of the present invention, optionally, the height of the first tooth is a first height H1; the thickness of the first tooth is a first thickness W1; the first height H1 and the first thickness W1 satisfy the following relationship: 6.86≤H1 / W1≤8.99.

[0023] In this technical solution, in the compression assembly, during the design of the scroll compressor, the height-to-thickness ratio of the scroll teeth, that is, the ratio of the tooth height of the first tooth to the tooth thickness of the first tooth, has an important influence on the performance and reliability of the compression assembly.

[0024] When designing the compression assembly, these factors are comprehensively considered, and the utility model sets the relationship 6.86≤H1 / W1≤8.99, so that the ratio of the first height to the first thickness satisfies the above relationship, providing a reasonable ratio range between the height of the first tooth and the thickness of the first tooth.

[0025] The ratio range is 6.86≤H1 / W1≤8.99, ensuring that the compressor has sufficient strength and rigidity during operation and realizing an efficient compression process. Within the above range, the first tooth can maintain sufficient strength and rigidity to withstand the pressure and load of the compressor during operation, and the shape and size of the first tooth can ensure that the gas can flow smoothly during the compression process, reducing energy loss and medium leakage.

[0026] In some technical solutions of the present utility model, optionally, the height of the second tooth is a second height H2; the thickness of the second tooth is a second thickness W2; the second height H2 and the second thickness W2 satisfy the following relationship: 6.86≤H2 / W2≤8.99.

[0027] In this technical solution, the utility model sets a parameter relationship of 6.86≤H2 / W2≤8.99, which limits a reasonable ratio range between the height of the second tooth and the thickness of the second tooth.

[0028] The ratio range is 6.86≤H2 / W2≤8.99, ensuring that the compressor has sufficient strength and rigidity during operation while achieving an efficient compression process. Within this range, the second tooth can maintain sufficient strength and rigidity to withstand the pressure and load during the operation of the compressor. Within this range, the shape and size of the second tooth can ensure that the gas can flow smoothly during the compression process, reducing energy loss and medium leakage.

[0029] In some technical solutions of the present utility model, optionally, the thickness of the first disk body is a third thickness W3; the height of the first tooth is a first height H1; the third thickness W3 and the first height H1 satisfy the following relationship: 2.91≤H1 / W3≤3.81.

[0030] In the technical solution, in the design of the compression assembly, the proportional relationship H1 / W3 between the first height H1 of the first tooth and the third thickness W3 of the first disk body has an important influence on the performance and reliability of the compressor. The relationship 2.91≤H1 / W3≤3.81 set by the utility model provides a reasonable proportional range between the two parameters.

[0031] Within the above-mentioned ratio range, a balance is achieved between the height of the vortex tooth and the thickness of the disk body, which ensures that the first tooth has sufficient strength to withstand the pressure and load during operation, and that the first disk body has sufficient rigidity to support the first tooth to prevent its deformation or failure. In addition, it helps to maintain a good seal between the first tooth and the static vortex disk, which can reduce gas leakage and improve the efficiency of the compression assembly. In a high-temperature working environment, the first tooth and the first disk body will undergo a certain degree of thermal expansion. A reasonable ratio of tooth height to disk body thickness can ensure that this expansion does not cause the gap between the first tooth and the static vortex disk to be too large, thereby maintaining the sealing performance.

[0032] In some technical solutions of the present invention, optionally, the pitch of the first tooth is a first pitch P1; the height of the first tooth is a first height H1; the first height H1 and the first pitch P1 satisfy the following relationship: 1.65≤H1 / P1≤2.16.

[0033] In this technical solution, the relationship between the first pitch P1 of the first tooth and the first height H1 of the first tooth satisfies 1.65≤H1 / P1≤2.16.

[0034] By setting 1.65≤H1 / P1≤2.16, it can be ensured that the compression assembly has a smaller overturning moment and lower substrate end face wear during operation.

[0035] In some technical solutions of the present invention, optionally, the pitch of the first tooth is a first pitch P1; the height of the first tooth is a first height H1; the thickness of the first tooth is a first thickness W1; the first height H1, the first pitch P1 and the first thickness W1 satisfy the following relationship: 2.18≤H1 / (P1-W1)≤2.85.

[0036] In this technical solution, the ratio between the tooth height and the slot width (pitch minus the vortex tooth thickness) has an important influence on the processing and performance of the first tooth.

[0037] The tooth height to slot width ratio reflects the relative relationship between the height of the first tooth and the width of the slot between two adjacent first teeth. The size of this ratio directly affects the difficulty of machining the first teeth, tool life, and the performance of the compression assembly. If the tooth height to slot width ratio is too large, that is, the value of H1 / (P1-W1) is too large, then the slot between the first teeth will be relatively narrow, forming a deep slot. The difficulty of machining deep slots will be greatly increased because higher precision is required during milling to maintain contour and verticality. At the same time, the machining of deep slots will increase tool wear, reduce tool life, and thus increase machining costs.

[0038] By setting the parameter range of 2.18≤H1 / (P1-W1)≤2.85, it can be ensured that the processing difficulty of the first tooth is moderate, and the best performance and processing economy of the compression component can be achieved.

[0039] In some technical solutions of the present invention, optionally, the pitch of the second tooth is a second pitch P2; the height of the second tooth is a second height H2; the second height H2 and the second pitch P2 satisfy the following relationship: 1.65≤H2 / P2≤2.16.

[0040] In this technical solution, the relationship between the second pitch P2 of the second tooth and the second height H2 of the second tooth satisfies 1.65≤H2 / P2≤2.16.

[0041] By setting 1.65≤H2 / P2≤2.16, it can be ensured that the compression assembly has a smaller overturning moment and lower substrate end face wear during operation.

[0042] In some technical solutions of the present invention, optionally, the pitch of the second tooth is the second pitch P2; the height of the second tooth is the second height H2; the thickness of the second tooth is the second thickness W2; the second height H2, the second pitch P2 and the second thickness W2 satisfy the following relationship: 2.18≤H2 / (P2-W2)≤2.85.

[0043] In this technical solution, the ratio between the tooth height and the slot width (pitch minus the vortex tooth thickness) has an important influence on the processing and performance of the second tooth.

[0044] The tooth height to slot width ratio reflects the relative relationship between the height of the second tooth and the width of the slot between two adjacent second teeth. The size of this ratio directly affects the difficulty of machining the second teeth, tool life, and the performance of the compression assembly. If the tooth height to slot width ratio is too large, that is, the value of H2 / (P2-W2) is too large, the slot between the second teeth will be relatively narrow, forming a deep slot. The difficulty of machining deep slots will be greatly increased because higher precision is required during milling to maintain contour and verticality. At the same time, the machining of deep slots will increase tool wear, reduce tool life, and thus increase machining costs.

[0045] By setting the parameter range of 2.18≤H2 / (P2-W2)≤2.85, it can be ensured that the processing difficulty of the second tooth is moderate, and the best performance and processing economy of the compression component can be achieved.

[0046] In some technical schemes of the present utility model, optionally, the air suction chamber includes a first cavity and a second cavity, the first cavity is closer to the shell than the second cavity; the area of ​​the region where the second disk body is opposite to the first cavity is the first area S1; the area of ​​the region where the first disk body is opposite to the second cavity is the second area S2; the height of the first tooth is the first height H1; the volume V of the air suction chamber, the first area S1, the second area S2 and the first height H1 satisfy the following relationship: V = (S1 + S2) × H1.

[0047] In this technical solution, the volume of the suction chamber of the compression assembly is determined by the relative position between the orbiting scroll and the stationary scroll and the height of the first tooth.

[0048] The first area S1 is the area of ​​the region where the second disk body is opposite to the first cavity. The second area S2 is the area of ​​the region where the first disk body is opposite to the second cavity. The first height H1 is the height of the first tooth. The volume V of the suction chamber = (S1 + S2) × H1. The utility model defines the above relationship, indicating that the volume V of the suction chamber is determined by the product of the sum of the first area S1 and the second area S2 and the first height H1. By adjusting these parameters, the volume of the suction chamber can be controlled, and then the performance of the compressor, such as the suction volume, compression ratio, etc., can be adjusted to meet the performance requirements.

[0049] In some technical solutions of the present invention, optionally, the first tooth includes a first tooth segment and a second tooth segment, and the second tooth segment is closer to the center of the first disk body than the first tooth segment; the second tooth includes a third tooth segment and a fourth tooth segment, and the fourth tooth segment is closer to the center of the second disk body than the third tooth segment; the height of the fourth tooth segment is greater than the height of the second tooth segment.

[0050] In this technical solution, the first tooth is divided into a first tooth segment and a second tooth segment, wherein the second tooth segment is closer to the center of the first disc body. The second tooth is divided into a third tooth segment and a fourth tooth segment, wherein the fourth tooth segment is closer to the center of the second disc body.

[0051] Since the teeth of the orbiting scroll and the fixed scroll extend in a spiral shape and need to maintain a certain degree of sealing during operation to ensure compression efficiency, height correction can ensure that during the meshing process of the orbiting scroll and the fixed scroll, the tooth tops and tooth grooves can form a good seal to prevent gas leakage.

[0052] The height of the fourth tooth segment is greater than the height of the second tooth segment. By increasing the height of the specific tooth segment of the fixed scroll, it is ensured that when the movable scroll and the fixed scroll are meshed with each other, the tooth top and the tooth groove can maintain close contact, thereby improving the efficiency and performance of the compression assembly.

[0053] In some technical solutions of the present utility model, optionally, the height of the second tooth segment is greater than the height of the first tooth segment; and / or the height of the fourth tooth segment is greater than the height of the third tooth segment.

[0054] In this technical solution, during the operation of the compression assembly, the teeth of the movable scroll and the fixed scroll need to fit closely but not produce excessive friction. By making the height of the second tooth segment greater than the first tooth segment, or the height of the fourth tooth segment greater than the third tooth segment, it can be ensured that during the rotation of the movable scroll, the tooth tops will not directly contact each other, thereby avoiding unnecessary friction. Reducing friction can not only reduce the energy consumption of the compression assembly, but also reduce wear and extend the service life of the scroll.

[0055] According to a second aspect of the utility model, the utility model provides a refrigeration device, which includes a compression component as in any of the above technical solutions.

[0056] The refrigeration device proposed in the second aspect of the utility model includes a compression component as in any of the above technical solutions, and thus has all the beneficial effects of the compression component in any of the above technical solutions.

[0057] According to a third aspect of the utility model, the utility model provides a vehicle, the vehicle comprising a compression assembly as in any of the above technical solutions.

[0058] The vehicle proposed in the third aspect of the utility model comprises a compression assembly as in any of the above technical solutions, and therefore has all the beneficial effects of the compression assembly in any of the above technical solutions.

[0059] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0061] Figure 1 It is a structural schematic diagram of a movable scroll of a compression assembly according to an embodiment of the utility model;

[0062] Figure 2 It is a structural schematic diagram of a stationary scroll of a compression assembly according to an embodiment of the utility model;

[0063] Figure 3 It is a structural schematic diagram of a compression assembly according to an embodiment of the utility model;

[0064] Figure 4 It is a schematic diagram of the suction closing parameters of the first cavity of the suction cavity of the compression assembly according to one embodiment of the utility model;

[0065] Figure 5 It is a schematic diagram of the suction closing parameters of the second cavity of the suction cavity of the compression assembly according to an embodiment of the utility model.

[0066] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names in the figure is:

[0067] 100 compression assembly, 110 casing, 120 orbiting scroll, 122 first disk body, 124 first tooth, 126 first tooth segment, 128 second tooth segment, 130 stationary scroll, 132 second disk body, 134 second tooth, 136 third tooth segment, 138 fourth tooth segment, 140 suction chamber, 142 first cavity, 144 second cavity. DETAILED DESCRIPTION

[0068] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0069] In the following description, many specific details are set forth to facilitate 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 protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0070] Refer to the following Figures 1 to 5 A compression assembly 100 , a refrigeration device and a vehicle according to some embodiments of the present invention are described.

[0071] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, in some embodiments of the present invention, a compression assembly 100 is proposed, which includes a housing 110, a movable scroll 120 and a fixed scroll 130. The movable scroll 120 is arranged in the housing 110, and the movable scroll 120 includes a first disk body 122 and a first tooth 124. The first tooth 124 extends in a spiral shape and is arranged on the first disk body 122; the fixed scroll 130 is arranged in the housing 110, and the fixed scroll 130 includes a second disk body 132 and a second tooth 134. The second tooth 134 extends in a spiral shape and is arranged on the second disk body 132. An air suction chamber 140 is provided between the second tooth 134 and the first tooth 124.

[0072] The movable scroll 120 rotates one circle relative to the fixed scroll 130, and the suction volume of the suction chamber 140 is volume V; the inner diameter D of the shell 110, the diameter D1 of the first disk body 122, the diameter D2 of the second disk body 132 and the volume V satisfy the following relationship: 7313≤(D×V)×D2 / D1≤9577; wherein, the units of the inner diameter D of the shell 110, the diameter D1 of the first disk body 122 and the diameter D2 of the second disk body 132 are all millimeters, and the unit of the volume V is cubic centimeters.

[0073] The compression assembly 100 proposed in the present invention includes a housing 110, a movable scroll 120 and a fixed scroll 130. The housing 110 is an external structure of the compression assembly 100, and provides a closed and protected environment for the working components inside the compression assembly 100. Specifically, the housing 110 is made of metal or other strong materials to ensure that the internal components can operate safely under high pressure and high temperature environments.

[0074] The movable scroll 120 is disposed in the housing 110. Specifically, the movable scroll 120 can rotate or swing in the housing 110. The movable scroll 120 is composed of a first disk body 122 and a first tooth 124. The first disk body 122 is the main body of the movable scroll 120 and provides support for the first tooth 124. The first tooth 124 extends in a spiral shape and is disposed on the first disk body 122. This design enables the movable scroll 120 to effectively cooperate with the fixed scroll 130, thereby forming an air suction chamber 140 between the two.

[0075] The fixed scroll 130 corresponds to the movable scroll 120, and the fixed scroll 130 is fixed and does not move. The fixed scroll 130 includes a second disk body 132 and a second tooth 134. The second disk body 132 is the main body of the fixed scroll 130, and provides a stable support for the second tooth 134. The second tooth 134 extends in a spiral shape and corresponds to the first tooth 124. When the movable scroll 120 moves, the space between the first tooth 124 and the second tooth 134 will change, thereby achieving gas compression.

[0076] The suction chamber 140 is located between the second tooth 134 and the first tooth 124. The suction chamber 140 is where the gas is sucked in and begins to be compressed. As the orbiting scroll 120 moves, the volume of the suction chamber 140 gradually decreases, thereby compressing the gas. The compression assembly 100 realizes the gas suction, compression and discharge process through the mutual cooperation of the orbiting scroll 120 and the fixed scroll 130.

[0077] The movable scroll 120 rotates one circle relative to the fixed scroll 130 , and the suction volume of the suction chamber 140 is volume V. The utility model defines the inner diameter D of the housing 110 , the diameter D1 of the first disk body 122 , the diameter D2 of the second disk body 132 , and the volume V.

[0078] Specifically, the inner diameter D of the housing 110 determines the size and spatial layout of the compressor as a whole. The diameter D1 of the first disk 122 and the diameter D2 of the second disk 132 determine the size of the orbiting scroll 120 and the fixed scroll 130. The volume V of the suction chamber 140 determines the amount of gas that can be sucked into the compressor per cycle. A larger volume can increase the displacement, but it may also lead to a decrease in compression efficiency.

[0079] The utility model sets 7313≤(D×V)×D2 / D1≤9577, wherein the units of the inner diameter D of the housing 110, the diameter D1 of the first plate 122, and the diameter D2 of the second plate 132 are all in millimeters, and the unit of the volume V is in cubic centimeters. By limiting the upper limit of (D×V)×D2 / D1, it can be ensured that the inner diameter D of the housing 110 will not be too large under a given displacement, thereby reducing the overall size of the compressor.

[0080] By setting the lower limit of (D×V)×D2 / D1, it is possible to ensure that the maximum possible displacement is achieved by optimizing the disk diameter and the volume of the suction chamber 140 under a given shell 110 size. While keeping the displacement unchanged, the overall size of the compressor can be reduced by reducing the inner diameter D of the shell 110 and increasing the volume V / of the suction chamber 140 and the diameter D1 of the first disk 122. While keeping the size of the shell 110 unchanged, the displacement can be increased by increasing the diameter D2 of the second disk and / or the volume V of the suction chamber, thereby improving the performance of the compressor.

[0081] The utility model makes the inner diameter D of the housing 110, the diameter D1 of the first plate 122, the diameter D2 of the second plate 132 and the volume V of the air suction chamber 140 meet the above-mentioned "size balance" range, and realizes a small shell diameter and a large displacement, that is, under the premise of ensuring the performance of the compression component 100, the diameter of the housing 110 is reduced as much as possible, and the displacement of the compression component 100 is increased. It not only ensures the good performance of the compression component 100, but also makes the compression component 100 reliable to use and more economical to manufacture.

[0082] In summary, the compression assembly 100 proposed in the present invention, by setting the above-mentioned parameter relationship, provides a method for optimizing the inner diameter of the shell 110, the disk diameter and the volume of the suction chamber 140 while maintaining the performance and reliability of the compressor, so that the inner diameter D of the shell 110, the diameter D1 of the first disk 122, the diameter D2 of the second disk 132 and the volume V of the suction chamber 140 satisfy 7313≤(D×V)×D2 / D1≤9577. While ensuring the performance and reliability of the compressor, the diameter of the shell 110 is reduced as much as possible, the displacement of the compressor is increased, and the miniaturization and large-displacement design of the compressor are realized.

[0083] Specifically, the inner diameter D of the housing 110, the diameter D1 of the first disk 122, the diameter D2 of the second disk 132 and the volume V of the suction chamber 140 satisfy 7313≤(D×V)×D2 / D1≤9577. Exemplarily, the above parameters (D×V)×D2 / D1 can be 7313, 7800, 7900, 8000, 8100, 8200, 8300, 8700, 8900, 9000, 9300 and 9577, etc. Specifically, the compression assembly 100 is a scroll compressor. Specifically, the scroll compressor also includes a cross slip ring, a main frame, a crankshaft, a main balance block, a housing exhaust pipe, a rotor, a stator, a casing and a sub-frame. The housing 110 is provided with structures such as suction holes, exhaust holes and enthalpy increase holes.

[0084] The scroll compressor proposed by the utility model, when static, the mutually meshing movable scroll 120 and fixed scroll 130 will form several pairs of suction chambers 140. When dynamic, the motor drives the crankshaft to rotate. Under the action of the cross slip ring, the eccentric part of the crankshaft drives the movable scroll 120 to make an overall translational rotation. The several pairs of suction chambers 140 gradually approach the center and the volume becomes smaller, thereby achieving compression and reaching the exhaust state.

[0085] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the height of the first tooth 124 is a first height H1; the thickness of the first tooth 124 is a first thickness W1; the first height H1 and the first thickness W1 satisfy the following relationship: 6.86≤H1 / W1≤8.99.

[0086] In this embodiment, in the compression assembly 100 , during the design of the scroll compressor, the height-to-thickness ratio of the scroll tooth, that is, the ratio of the tooth height of the first tooth 124 to the tooth thickness of the first tooth 124 has an important influence on the performance and reliability of the compression assembly 100 .

[0087] Specifically, when the height-to-thickness ratio is too large, the root of the first tooth 124 is relatively thin, which means that when subjected to the same pressure or load, the stress borne by the root will be greater. Under long-term operation under high stress, the root of the first tooth 124 is prone to fatigue fracture, resulting in tooth breakage, which increases the risk of failure of the compression assembly 100. When the height-to-thickness ratio is too small, the rigidity of the first tooth 124 will be too strong, resulting in poor radial flexibility during operation. This will affect the sealing effect between the first tooth 124 and the static scroll 130, making it easy for the medium to leak, thereby reducing the compression capacity and efficiency of the compression assembly 100.

[0088] When designing the compression assembly 100 , these factors are comprehensively considered, and the utility model sets the relationship 6.86≤H1 / W1≤8.99, so that the ratio of the first height to the first thickness satisfies the above relationship, providing a reasonable ratio range between the height of the first tooth 124 and the thickness of the first tooth 124 .

[0089] Specifically, the ratio of H1 / W1 reflects the slenderness of the first teeth 124. A higher ratio means that the teeth are relatively taller and thinner, while a lower ratio means that the teeth are relatively shorter and thicker.

[0090] The ratio range is 6.86≤H1 / W1≤8.99, ensuring that the compressor has sufficient strength and rigidity during operation and realizing an efficient compression process. Within the above range, the first tooth 124 can maintain sufficient strength and rigidity to withstand the pressure and load during the operation of the compressor, and the shape and size of the first tooth 124 can ensure that the gas can flow smoothly during the compression process, reducing energy loss and medium leakage.

[0091] Under the premise of meeting the performance requirements, limiting the ratio of H1 / W1 can also help reduce manufacturing costs. Through reasonable design and material selection, the material consumption and processing costs can be reduced while ensuring the performance of the compression assembly 100.

[0092] Specifically, the value of H1 / W1 can be 6.86, 6.90, 7.10, 7.30, 7.60, 7.80, 8.00, 8.30 or 8.99.

[0093] During calculation, the dimensional units of the first height H1 of the first tooth 124 and the first thickness W1 of the first tooth 124 are unified. For example, the unit of the first height H1 of the first tooth 124 is centimeter, and the unit of the first thickness W1 of the first tooth 124 is also centimeter, or the unit of the first height H1 of the first tooth 124 is millimeter, and the unit of the first thickness W1 of the first tooth 124 is also millimeter.

[0094] Specifically, the unit of the first height H1 of the first tooth 124 is millimeter, and the unit of the first thickness W1 of the first tooth 124 is millimeter.

[0095] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the height of the second tooth 134 is a second height H2; the thickness of the second tooth 134 is a second thickness W2; the second height H2 and the second thickness W2 satisfy the following relationship: 6.86≤H2 / W2≤8.99.

[0096] In this embodiment, the utility model sets the parameter relationship of 6.86≤H2 / W2≤8.99, which defines a reasonable ratio range between the height of the second tooth 134 and the thickness of the second tooth 134 .

[0097] Specifically, the ratio of H2 / W2 reflects the slenderness of the second tooth 134. A higher ratio means that the second tooth 134 is relatively taller and thinner, while a lower ratio means that the second tooth 134 is relatively shorter and thicker.

[0098] When the height-to-thickness ratio is too large, the root of the second tooth 134 is relatively thin, which means that when subjected to the same pressure or load, the stress borne by the root will be greater. Under long-term operation under high stress, the root of the second tooth 134 is prone to fatigue fracture, resulting in broken teeth, increasing the risk of failure of the compression assembly 100. When the height-to-thickness ratio is too small, the rigidity of the second tooth 134 will be too strong, resulting in poor radial flexibility during operation. This will affect the sealing effect between the second tooth 134 and the movable scroll 120, making it easy for the medium to leak, thereby reducing the compression capacity and efficiency of the compression assembly 100.

[0099] The ratio range is 6.86≤H2 / W2≤8.99, ensuring that the compressor has sufficient strength and rigidity during operation while achieving an efficient compression process. Within this range, the second teeth 134 can maintain sufficient strength and rigidity to withstand the pressure and load during the operation of the compressor. Within this range, the shape and size of the second teeth 134 can ensure that the gas can flow smoothly during the compression process, reducing energy loss and medium leakage.

[0100] Under the premise of meeting the performance requirements, optimizing the ratio of H2 / W2 can also help reduce manufacturing costs. Through reasonable design and material selection, the material consumption and processing costs can be reduced while ensuring the performance of the compression assembly 100.

[0101] Specifically, the value of H2 / W2 can be 6.86, 7.62, 7.89, 7.99, 8.22, 8.45 and 8.99.

[0102] During calculation, the dimensional units of the second height H2 of the second tooth 134 and the second thickness W2 of the second tooth 134 are unified. For example, the unit of the second height H2 of the second tooth 134 is centimeter, and the unit of the second thickness W2 of the second tooth 134 is also centimeter, or the unit of the second height H2 of the second tooth 134 is millimeter, and the unit of the second thickness W2 of the second tooth 134 is also millimeter.

[0103] Specifically, the unit of the second height H2 of the second tooth 134 is millimeter, and the unit of the second thickness W2 of the second tooth 134 is millimeter. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the thickness of the first disk body 122 is a third thickness W3; the height of the first tooth 124 is a first height H1; the third thickness W3 and the first height H1 satisfy the following relationship: 2.91≤H1 / W3≤3.81.

[0104] In this embodiment, in the design of the compression assembly 100, the ratio H1 / W3 between the first height H1 of the first tooth 124 and the third thickness W3 of the first plate body 122 has an important influence on the performance and reliability of the compressor. The relationship 2.91≤H1 / W3≤3.81 set by the utility model provides a reasonable ratio range between these two parameters.

[0105] Specifically, when the ratio H1 / W3 of the third thickness W3 and the first height H1 is too large, the first disk body 122 is prone to significant deformation when subjected to pressure, presenting a shape that is high in the middle and low on the periphery. This deformation can affect the sealing effect between the first tooth 124 and the fixed scroll 130, causing medium leakage and reducing the efficiency of the compressor. When designing the compression assembly 100, ensuring that the ratio of the third thickness W3 and the first height H1 is within the range of 2.91≤H1 / W3≤3.81 can avoid problems caused by excessive deformation of the substrate and increased expansion of the scroll teeth.

[0106] Within the above-mentioned ratio range, a balance is achieved between the height of the vortex tooth and the thickness of the disk body, which ensures that the first tooth 124 has sufficient strength to withstand the pressure and load during operation, and ensures that the first disk body 122 has sufficient rigidity to support the first tooth 124 to prevent its deformation or failure. In addition, it helps to maintain a good seal between the first tooth 124 and the static vortex disk 130, which can reduce gas leakage and improve the efficiency of the compression assembly 100. In a high-temperature working environment, the first tooth 124 and the first disk body 122 will undergo a certain degree of thermal expansion. A reasonable ratio of tooth height to disk body thickness can ensure that this expansion does not cause the gap between the first tooth 124 and the static vortex disk 130 to be too large, thereby maintaining the sealing performance.

[0107] Specifically, the value of H1 / W3 can be 2.91, 3.01, 3.11, 3.21, 3.31, 3.41, 3.51, 3.61, 3.71 or 3.81.

[0108] During calculation, the first height H1 of the first tooth 124 and the third thickness W3 of the first plate body 122 have the same size unit, for example, the first height H1 of the first tooth 124 is in centimeters, and the third thickness W3 of the first plate body 122 is also in centimeters, or the first height H1 of the first tooth 124 is in millimeters, and the third thickness W3 of the first plate body 122 is also in millimeters. Specifically, the first height H1 of the first tooth 124 is in millimeters, and the third thickness W3 of the first plate body 122 is in millimeters.

[0109] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the pitch of the first tooth 124 is a first pitch P1; the height of the first tooth 124 is a first height H1; the first height H1 and the first pitch P1 satisfy the following relationship: 1.65≤H1 / P1≤2.16.

[0110] In this embodiment, the relationship between the first pitch P1 of the first teeth 124 and the first height H1 of the first teeth 124 satisfies 1.65≤H1 / P1≤2.16.

[0111] Specifically, the tooth height pitch ratio reflects the relative relationship between the height and pitch of the first tooth 124. The size of this ratio directly affects the compression assembly 100. If the tooth height pitch ratio is too large, that is, the value of H1 / P1 is too large, then the movable scroll 120 may generate a large overturning moment during operation. Excessive overturning moment will increase the stress of the first tooth 124, resulting in fatigue fracture or increased wear of the first tooth 124. At the same time, an excessively large tooth height pitch ratio may also cause bite wear on the end surfaces of the first disk body 122 and the second disk body 132 between the movable scroll 120 and the fixed scroll 130. This wear will destroy the seal between the first tooth 124 and the fixed scroll 130, resulting in gas leakage and reducing the efficiency of the compression assembly 100.

[0112] By setting 1.65≤H1 / P1≤2.16, it can be ensured that the compression assembly 100 has a smaller overturning moment and lower substrate end surface wear during operation.

[0113] Specifically, the value of H1 / P1 may be 1.65, 1.76, 1.86, 1.96 or 2.16.

[0114] During calculation, the dimensional units of the first height H1 of the first tooth 124 and the first pitch P1 of the first tooth 124 are unified. For example, the unit of the first height H1 of the first tooth 124 is centimeter, and the unit of the first pitch P1 of the first tooth 124 is also centimeter, or the unit of the first height H1 of the first tooth 124 is millimeter, and the unit of the first pitch P1 of the first tooth 124 is also millimeter.

[0115] Specifically, the unit of the first height H1 of the first tooth 124 is millimeter, and the unit of the first pitch P1 of the first tooth 124 is millimeter. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the pitch of the first tooth 124 is a first pitch P1; the height of the first tooth 124 is a first height H1; the thickness of the first tooth 124 is a first thickness W1; the first height H1, the first pitch P1 and the first thickness W1 satisfy the following relationship: 2.18≤H1 / (P1-W1)≤2.85.

[0116] In this embodiment, the ratio between the tooth height and the slot width (pitch minus the scroll tooth thickness) has an important influence on the processing and performance of the first tooth 124.

[0117] The tooth height to slot width ratio reflects the relative relationship between the height of the first tooth 124 and the width of the slot between two adjacent first teeth 124. The size of this ratio directly affects the difficulty of machining the first teeth 124, the tool life, and the performance of the compression assembly 100. If the tooth height to slot width ratio is too large, that is, the value of H1 / (P1-W1) is too large, then the first slot width W4 of the slot between the first teeth 124 will be relatively narrow, forming a deep slot. The difficulty of machining deep slots will be greatly increased because higher precision is required during milling to maintain contour and verticality. At the same time, the machining of deep grooves will also increase tool wear, reduce tool life, and thus increase machining costs.

[0118] By setting the parameter range of 2.18≤H1 / (P1-W1)≤2.85, it can be ensured that the processing difficulty of the first tooth 124 is moderate, and the optimal performance and processing economy of the compression assembly 100 can be achieved.

[0119] Specifically, the value of H1 / (P1-W1) can be 2.18, 2.28, 2.38, 2.48, 2.58, 2.68 or 2.85.

[0120] During calculation, the units of the first height H1 of the first tooth 124, the first thickness W1 of the first tooth 124, and the first pitch P1 of the first tooth 124 are unified. For example, the unit of the first height H1 of the first tooth 124 is centimeter, the unit of the first thickness W1 of the first tooth 124 is also centimeter, and the unit of the first pitch P1 of the first tooth 124 is also centimeter, or the unit of the first height H1 of the first tooth 124 is millimeter, the unit of the first thickness W1 of the first tooth 124 is also millimeter, and the unit of the first pitch P1 of the first tooth 124 is also millimeter.

[0121] Specifically, the unit of the first height H1 of the first tooth 124 is millimeter, the unit of the first thickness W1 of the first tooth 124 is millimeter, and the unit of the first pitch P1 of the first tooth 124 is millimeter.

[0122] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the pitch of the second teeth 134 is a second pitch P2; the height of the second teeth 134 is a second height H2; the second height H2 and the second pitch P2 satisfy the following relationship: 1.65≤H2 / P2≤2.16.

[0123] In this embodiment, the relationship between the second pitch P2 of the second teeth 134 and the second height H2 of the second teeth 134 satisfies 1.65≤H2 / P2≤2.16.

[0124] Specifically, the tooth height pitch ratio reflects the relative relationship between the height and pitch of the second tooth 134. The magnitude of this ratio directly affects the compression assembly 100. If the tooth height pitch ratio is too large, that is, the value of H2 / P2 is too large, fatigue fracture or aggravated wear of the second tooth 134 will result. At the same time, an excessively large tooth height pitch ratio may also cause bite wear on the end surfaces of the first disk body 122 and the second disk body 132 between the movable scroll 120 and the fixed scroll 130. Such wear will destroy the seal between the second tooth 134 and the movable scroll 120, resulting in gas leakage and reducing the efficiency of the compression assembly 100.

[0125] By setting 1.65≤H2 / P2≤2.16, it can be ensured that the compression assembly 100 has a smaller overturning moment and lower substrate end surface wear during operation.

[0126] Specifically, the value of H2 / P2 can be 1.65, 1.75, 1.85, 1.95, 2.00 or 2.16.

[0127] During calculation, the dimensional units of the second height H2 of the second tooth 134 and the second pitch P2 of the second tooth 134 are unified. For example, the unit of the second height H2 of the second tooth 134 is centimeter, and the unit of the second pitch P2 of the second tooth 134 is also centimeter, or the unit of the second height H2 of the second tooth 134 is millimeter, and the unit of the second pitch P2 of the second tooth 134 is also millimeter.

[0128] Specifically, the unit of the second height H2 of the second tooth 134 is millimeter, and the unit of the second pitch P2 of the second tooth 134 is millimeter. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the pitch of the second tooth 134 is the second pitch P2; the height of the second tooth 134 is the second height H2; the thickness of the second tooth 134 is the second thickness W2; the second height H2, the second pitch P2 and the second thickness W2 satisfy the following relationship: 2.18≤H2 / (P2-W2)≤2.85.

[0129] In this embodiment, the ratio between the tooth height and the slot width (pitch minus the scroll tooth thickness) has an important influence on the processing and performance of the second tooth 134.

[0130] The tooth height to slot width ratio reflects the relative relationship between the height of the second teeth 134 and the width of the slot between two adjacent second teeth 134. The size of this ratio directly affects the difficulty of machining the second teeth 134, the tool life, and the performance of the compression assembly 100. If the tooth height to slot width ratio is too large, that is, the value of H2 / (P2-W2) is too large, then the second slot width W5 of the slot between the second teeth 134 will be relatively narrow, forming a deep slot. The difficulty of machining deep slots will be greatly increased because higher precision is required during milling to maintain contour and verticality. At the same time, the machining of deep grooves will also increase tool wear, reduce tool life, and thus increase machining costs.

[0131] By setting the parameter range of 2.18≤H2 / (P2-W2)≤2.85, it can be ensured that the processing difficulty of the second tooth 134 is moderate, and the best performance and processing economy of the compression assembly 100 can be achieved.

[0132] Specifically, the value of H2 / (P2-W2) can be 2.18, 2.28, 2.38, 2.48, 2.58, 2.68, 2.78 or 2.85.

[0133] When calculating, the dimensional units of the second height H2 of the second tooth 134, the second thickness W2 of the second tooth 134 and the second pitch P2 of the second tooth 134 are unified. For example, the unit of the second height H2 of the second tooth 134 is centimeter, the unit of the second thickness W2 of the second tooth 134 is also centimeter, and the unit of the second pitch P2 of the second tooth 134 is also centimeter, or the unit of the second height H2 of the second tooth 134 is millimeter, the unit of the second thickness W2 of the second tooth 134 is also millimeter, and the unit of the second pitch P2 of the second tooth 134 is also millimeter.

[0134] Specifically, the unit of the second height H2 of the second tooth 134 is millimeter, the unit of the second thickness W2 of the second tooth 134 is millimeter, and the unit of the second pitch P2 of the second tooth 134 is millimeter. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the suction chamber 140 includes a first cavity 142 and a second cavity 144, the first cavity 142 is closer to the shell 110 than the second cavity 144; the area of ​​the region where the second disk 132 is opposite to the first cavity 142 is the first area S1; the area of ​​the region where the first disk 122 is opposite to the second cavity 144 is the second area S2; the height of the first tooth 124 is the first height H1; the volume V of the suction chamber 140, the first area S1, the second area S2 and the first height H1 satisfy the following relationship: V = (S1 + S2) × H1.

[0135] In this embodiment, the volume of the suction chamber 140 of the compression assembly 100 is determined by the relative position between the orbiting scroll 120 and the fixed scroll 130 and the height of the first tooth 124 .

[0136] The first area S1 is the area of ​​the region where the second disk 132 is opposite to the first cavity 142. The second area S2 is the area of ​​the region where the first disk 122 is opposite to the second cavity 144. The first height H1 is the height of the first tooth 124. The volume V of the suction chamber 140 = (S1 + S2) × H1. The utility model defines the above relationship, indicating that the volume V of the suction chamber 140 is determined by the product of the sum of the first area S1 and the second area S2 and the first height H1. By adjusting these parameters, the volume of the suction chamber 140 can be controlled, and then the performance of the compressor, such as the suction volume, compression ratio, etc., can be adjusted to meet the performance requirements.

[0137] Specifically, the units of the first area S1 and the second area S2 are the same. For example, the unit of the first area S1 is square centimeters, the unit of the second area is also square centimeters, and the unit of the first height H1 is also centimeters.

[0138] The unit of the first area S1 can also be square millimeters, and the unit of the second area S2 can also be square millimeters. At this time, the unit of the first height H1 is millimeters. In this case, the unit of the volume V is cubic millimeters. When calculating, just convert the unit of the volume V into cubic centimeters and substitute it into 7313≤(D×V)×D2 / D1≤9577 for calculation. Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the first tooth 124 includes a first tooth segment 126 and a second tooth segment 128, and the second tooth segment 128 is closer to the center of the first disk body 122 relative to the first tooth segment 126; the second tooth 134 includes a third tooth segment 136 and a fourth tooth segment 138, and the fourth tooth segment 138 is closer to the center of the second disk body 132 relative to the third tooth segment 136; the height of the fourth tooth segment 138 is greater than the height of the second tooth segment 128.

[0139] In this embodiment, the first tooth 124 is divided into a first tooth segment 126 and a second tooth segment 128, wherein the second tooth segment 128 is closer to the center of the first disk body 122. The second tooth 134 is divided into a third tooth segment 136 and a fourth tooth segment 138, wherein the fourth tooth segment 138 is closer to the center of the second disk body 132.

[0140] Since the teeth of the orbiting scroll 120 and the fixed scroll 130 extend in a spiral shape and need to maintain a certain sealing performance during operation to ensure compression efficiency, the height correction can ensure that the tooth tops and tooth grooves of the orbiting scroll 120 and the fixed scroll 130 can form a good seal during the meshing process to prevent gas leakage.

[0141] The height of the fourth tooth segment 138 is greater than the height of the second tooth segment 128. By increasing the height of the specific tooth segment of the fixed scroll 130, it is ensured that when the orbiting scroll 120 and the fixed scroll 130 are meshed with each other, the tooth tops and the tooth grooves can maintain close contact, thereby improving the efficiency and performance of the compression assembly 100.

[0142] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the height of the second tooth segment 128 is greater than the height of the first tooth segment 126 ; and / or the height of the fourth tooth segment 138 is greater than the height of the third tooth segment 136 .

[0143] In this embodiment, during the operation of the compression assembly 100, the teeth of the movable scroll 120 and the fixed scroll 130 need to fit closely but not produce excessive friction. By making the height of the second tooth segment 128 greater than the first tooth segment 126, or the height of the fourth tooth segment 138 greater than the third tooth segment 136, it can be ensured that during the rotation of the movable scroll 120, the tooth tops will not directly contact each other, thereby avoiding unnecessary friction. Reducing friction can not only reduce the energy consumption of the compression assembly 100, but also reduce wear and extend the service life of the scroll.

[0144] By precisely adjusting the height of the tooth segment, the shape and volume of the compression chamber can be optimized, so that the gas can flow more smoothly during the compression process, reducing leakage and backflow within the vortex. The thermodynamic efficiency of the compression assembly 100 is improved, so that the compression assembly 100 can compress more gas at the same energy consumption, or consume less energy when compressing the same amount of gas. The highly differentiated tooth segment design helps to form a tighter seal between the movable scroll 120 and the fixed scroll 130. When high-pressure gas is compressed, the higher tooth segment can better prevent gas leakage, thereby improving the efficiency of the compression assembly 100. During the operation of the compression assembly 100, the movable scroll 120 may be thermally deformed due to friction and heat generated during the compression process. By designing tooth segments of different heights, it is possible to better adapt to this deformation and maintain the sealing performance between the movable scroll 120 and the fixed scroll 130, thereby ensuring the stable operation of the compressor.

[0145] In summary, by making the height of the second tooth segment 128 greater than the first tooth segment 126, and / or making the height of the fourth tooth segment 138 greater than the third tooth segment 136, not only can the mutual friction between the movable scroll 120 and the fixed scroll 130 be avoided, and wear and energy consumption can be reduced, but also the efficiency of the compression assembly 100 can be improved, the sealing performance can be enhanced, and the influence of thermal deformation on the performance of the compression assembly 100 can be reduced.

[0146] The utility model defines the ratio range of the tooth height to the tooth thickness, the base plate thickness, the pitch and the groove width (pitch-volute tooth thickness) of the first tooth 124, so that the movable scroll 120 as a whole is in the "compatible ratio" range, and the compression assembly 100 is compatible with multiple capabilities at the same time. The ratio range of the height of the first tooth 124 to the tooth thickness determines that the strength of the first tooth 124 meets the functional requirements; the ratio range of the height of the first tooth 124 to the pitch prevents the movable scroll 120 from having an excessive overturning moment, improves the phenomenon of internal leakage of the medium and wear of the base plate, and the ratio range of the height of the first tooth 124 to the base plate thickness ensures that the deformation of the base plate of the movable scroll 120 is not too large under the coupling of various forces and temperatures, so that the compression assembly 100 runs smoothly and reliably. The ratio range of the height of the first tooth 124 to the groove width (pitch-volute tooth thickness) and the base plate thickness can ensure the milling processing accuracy, the stability of the clamping base plate, and reduce the difficulty of deep groove processing, greatly reducing the manufacturing cost.

[0147] In some embodiments of the present invention, the present invention provides a refrigeration device, which includes a compression assembly 100 as described in any of the above embodiments.

[0148] In this embodiment, the refrigeration device proposed by the present invention includes the compression assembly 100 in any of the above embodiments, and thus has all the beneficial effects of the compression assembly 100 in any of the above embodiments.

[0149] Specifically, the refrigeration equipment may be an air conditioner, an industrial chiller, a refrigerator, a freezer, a wine cabinet, a refrigerated display cabinet, and the like.

[0150] In some embodiments of the present invention, the present invention provides a vehicle, and the vehicle includes a compression assembly 100 as described in any of the above embodiments.

[0151] In this embodiment, the vehicle provided by the present invention includes the compression assembly 100 in any of the above embodiments, and thus has all the beneficial effects of the compression assembly 100 in any of the above embodiments.

[0152] Specifically, the compression assembly 100 can be applied to the air-conditioning system of a vehicle to provide the vehicle with higher cooling capacity and efficiency and meet the use requirements of the vehicle.

[0153] In the claims, specification and drawings of the present invention, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, which is only for the purpose of more conveniently describing the present invention and making the description process easier, rather than for indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limitations on the present invention; the terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0154] In the claims, specification and drawings of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification and drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0155] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A compression assembly, characterized in that: include: case; A movable scroll, the movable scroll is arranged in the housing, the movable scroll comprises a first disk body and a first tooth, the first tooth extends in a spiral shape and is arranged on the first disk body; A stationary scroll, wherein the stationary scroll is disposed in the housing, and comprises a second disk body and a second tooth, wherein the second tooth extends in a spiral shape and is disposed on the second disk body, and an air suction cavity is defined between the second tooth and the first tooth; The movable scroll rotates one circle relative to the fixed scroll, and the suction volume of the suction chamber is volume V; The inner diameter D of the housing, the diameter D1 of the first disk, the diameter D2 of the second disk and the volume V satisfy the following relationship: 7313≤(D×V)×D2 / D1≤9577; The units of the inner diameter D of the shell, the diameter D1 of the first disk body, and the diameter D2 of the second disk body are all millimeters, and the unit of the volume V is cubic centimeters.

2. The compression assembly according to claim 1, characterized in that The height of the first tooth is a first height H1; The thickness of the first tooth is a first thickness W1; The first height H1 and the first thickness W1 satisfy the following relationship: 6.86≤H1 / W1≤8.

99.

3. The compression assembly according to claim 1, characterized in that The height of the second tooth is a second height H2; The thickness of the second tooth is a second thickness W2; The second height H2 and the second thickness W2 satisfy the following relationship: 6.86≤H2 / W2≤8.

99.

4. The compression assembly according to claim 1, characterized in that The thickness of the first disk body is a third thickness W3; The height of the first tooth is a first height H1; The third thickness W3 and the first height H1 satisfy the following relationship: 2.91≤H1 / W3≤3.

81.

5. The compression assembly according to claim 1, characterized in that The pitch of the first teeth is a first pitch P1; The height of the first tooth is a first height H1; The first height H1 and the first pitch P1 satisfy the following relationship: 1.65≤H1 / P1≤2.

16.

6. The compression assembly according to claim 1, characterized in that The pitch of the first teeth is a first pitch P1; The height of the first tooth is a first height H1; The thickness of the first tooth is a first thickness W1; The first height H1, the first pitch P1 and the first thickness W1 satisfy the following relationship: 2.18≤H1 / (P1-W1)≤2.

85.

7. The compression assembly according to claim 1, characterized in that The pitch of the second teeth is a second pitch P2; The height of the second tooth is a second height H2; The second height H2 and the second pitch P2 satisfy the following relationship: 1.65≤H2 / P2≤2.

16.

8. The compression assembly according to claim 1, characterized in that The pitch of the second teeth is a second pitch P2; The height of the second tooth is a second height H2; The thickness of the second tooth is a second thickness W2; The second height H2, the second pitch P2 and the second thickness W2 satisfy the following relationship: 2.18≤H2 / (P2-W2)≤2.

85.

9. The compression assembly according to claim 1, characterized in that The air suction cavity comprises a first cavity and a second cavity, wherein the first cavity is closer to the housing than the second cavity; The area of ​​the second disk body opposite to the first cavity is a first area S1; The area of ​​the region where the first disk body and the second cavity face each other is the second area S2; The height of the first tooth is a first height H1; The volume V of the suction cavity, the first area S1, the second area S2 and the first height H1 satisfy the following relationship: V=(S1+S2)×H1.

10. The compression assembly according to any one of claims 1 to 9, characterized in that The first tooth includes a first tooth segment and a second tooth segment, wherein the second tooth segment is closer to the center of the first disk body than the first tooth segment; The second tooth includes a third tooth segment and a fourth tooth segment, and the fourth tooth segment is closer to the center of the second disk body than the third tooth segment; The height of the fourth tooth segment is greater than the height of the second tooth segment.

11. The compression assembly according to claim 10, characterized in that The height of the second tooth segment is greater than the height of the first tooth segment; and / or The height of the fourth tooth segment is greater than the height of the third tooth segment.

12. A refrigeration device, characterized in that: Comprising a compression assembly as claimed in any one of claims 1 to 11.

13. A vehicle, characterized in that: Comprising a compression assembly as claimed in any one of claims 1 to 11.

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