A refrigeration compressor with a flat structure

Abstract

The present invention discloses a refrigeration compressor with a flat structure, comprising a motor assembly, a crankshaft assembly and a cylinder seat connected to the motor assembly; the highest point of the cylinder on the side of the cylinder seat does not exceed the parting surface of the cylinder seat, and a sunken crankcase is provided below the cylinder seat; the motor assembly comprises a motor rotor and a motor stator arranged at the periphery of the motor rotor, and the sunken crankcase sinks toward the middle of the motor rotor; the refrigeration compressor with a flat structure sinks the cylinder head part, the crankcase part, the crankshaft connecting rod and other components, so that there is no redundant component structure above the cylinder seat, thereby reducing the height of the compressor as a whole, and the refrigeration compressor with a flat structure can control the height of the whole machine within 140 mm, and occupies a small installation space. It can be expanded and applied to small household appliances such as small ice makers, dehumidifiers, and water dispensers, further improving the competitiveness of the product.

Description

Technical Field

[0001] The present invention relates to the technical field of compressor production, and in particular to a refrigeration compressor with a flat structure. Background Art

[0002] The existing mass-produced compressor pump body mainly consists of a cylinder block, a crankshaft assembly, a piston, a connecting rod, a piston pin, a motor, and an exhaust chamber. Due to the height of the motor enameled wire, the cylinder of the cylinder block (the part where the piston fits in the cylinder hole) is higher than the enameled wire, and the exhaust chamber is located above the cylinder block, making the entire compressor taller. Figure 1 As shown, the upper end of the crankshaft passes through the cylinder seat to connect the connecting rod, and the connecting rod is connected to the cylinder above the cylinder seat. In addition, an exhaust chamber, an exhaust coil and other components need to be arranged above the cylinder seat, resulting in a relatively high overall height.

[0003] As refrigerator manufacturers optimize the structure of the cabinet, in order to maximize the internal volume of the refrigerator, they often put forward requirements for low and small products when selecting compressors. The height of current refrigeration compressors is difficult to meet the requirements. Summary of the Invention

[0004] The purpose of the present invention is to provide a refrigeration compressor with a flat structure in order to solve the problems existing in the prior art.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A flat refrigeration compressor includes a motor assembly, a crankshaft assembly connected to the motor assembly, and a cylinder block; the highest point of the cylinder on the side of the cylinder block does not exceed the parting surface of the cylinder block, and a sunken crankcase is provided below the cylinder block; the motor assembly includes a motor rotor and a motor stator arranged around the motor rotor, and the sunken crankcase is sunken toward the middle of the motor rotor;

[0007] The crankshaft assembly includes a crankshaft and a connecting rod connected to the crankshaft. The crankshaft passes through the motor rotor from bottom to top and is connected to the motor rotor. The upper half of the crankshaft is sleeved in the sunken crankcase. The upper end of the crankshaft does not exceed the upper surface of the cylinder seat. The arrangement height of the connecting rod is lower than the main body height of the cylinder seat. The motor enameled wire of the motor stator is shaped downward on the side close to the cylinder to form a first clearance space. The sunken crankcase is provided with a penetrating second clearance space on the side close to the cylinder. The connecting rod passes through the second clearance space and the first clearance space and is connected to the cylinder.

[0008] This flat-structured refrigeration compressor sinks the cylinder head, crankcase, crankshaft and connecting rod, eliminating redundant components above the cylinder seat. This reduces the overall height of the compressor by more than 28mm compared to similar products. Furthermore, this flat-structured refrigeration compressor can keep the overall height within 140mm, enabling it to meet the needs of products with limited installation space. This means that the space required for installation will be smaller. In addition to being used in refrigerators to maximize the internal volume of the refrigerator, this refrigeration compressor can also be expanded to small appliances such as small ice makers, dehumidifiers, and water dispensers, further enhancing product competitiveness.

[0009] The cylinder head is lowered so that it sits to the side of the cylinder block, rather than above the side edge of the block. This arrangement frees up space above the cylinder block, saving significant overhead space. With the cylinder lowered, the crankshaft and connecting rod must also be lowered. This eliminates the need for the upper end of the crankshaft to extend beyond the cylinder block, while allowing the connecting rod to pass underneath the cylinder block to connect to the cylinder. This design not only reduces overall height but also creates a concealed design, with the crankshaft and connecting rod completely hidden by the cylinder block and not exposed.

[0010] The setting of the sunken crankcase is more critical. On the one hand, it is basically located in the motor assembly below, making full use of the space surrounded by the motor enameled wire for layout, and at the same time more is arranged inside the motor rotor; on the other hand, the internal space of the sunken crankcase can be used to arrange the crankshaft, especially the eccentric part above the crankshaft, so that it is completely located in the sunken crankcase, so that the layout height of the connecting rod can be reduced so that it can be connected to the outer cylinder.

[0011] The first clearance space and the second clearance space can be produced by shaping the motor enameled wire and the sunken crankcase near the side of the cylinder. These clearance spaces can be used to allow the connecting rod to reciprocate within this range.

[0012] Furthermore, the sunken crankcase includes a first-stage sunken case, a second-stage sunken case and a third-stage sunken case from top to bottom, the second-stage sunken case is lower than the maximum height of the motor enameled wire of the motor stator; a first countersunk hole and a second countersunk hole are provided on the motor rotor, the third-stage sunken case is sleeved in the second countersunk hole, and the second-stage sunken case is sleeved in the first countersunk hole; the surrounding wall of the first-stage sunken case is provided with the second clearance space.

[0013] By setting up the three-level sunken box body, the sunken crankcase can be better accommodated in the motor assembly, and can also provide multi-level layered space to accommodate the crankshaft assembly, making full use of both internal and external space.

[0014] Furthermore, the crankshaft is provided with an eccentric disk. The crankshaft portion below the eccentric disk is sleeved in the three-stage sinking case and passes downward through the motor rotor. The crankshaft portion above the eccentric disk is connected to the connecting rod. The eccentric disk is located in the two-stage sinking case. The inner bottom of the two-stage sinking case is provided with a bearing that supports and connects the eccentric disk. This arrangement not only reduces the height of the crankshaft eccentric portion, but also provides better support for the eccentric portion, allowing the eccentric portion to rotate within the designed range.

[0015] Furthermore, the first-stage sunken box and the second-stage sunken box are both truncated cone-shaped, the maximum outer diameter of the second-stage sunken box is smaller than the minimum outer diameter of the first-stage sunken box, the third-stage sunken box is cylindrical, the outer diameter of the third-stage sunken box is smaller than the minimum outer diameter of the second-stage sunken box, and the axial dimension of the third-stage sunken box is not less than half of the axial dimension of the motor rotor.

[0016] By setting the above-mentioned shapes and sizes, the first-level sinking box, the second-level sinking box and the third-level sinking box can form a stepped structure with a larger top and a smaller bottom. Such a structure not only facilitates its installation, but also provides a reasonable space to accommodate the eccentric disk and the connecting rod. The end of the connecting rod can rotate in the first-level sinking space driven by the eccentric part.

[0017] Furthermore, the cylinder base is provided with a clearance groove between the sunken crankcase and the cylinder, the clearance groove being in communication with the second clearance space. The provision of the clearance groove enables communication with the sunken crankcase, facilitating the installation of components and promoting heat dissipation of the motor assembly.

[0018] Furthermore, the refrigeration compressor further includes a bottom-mounted exhaust chamber, which is disposed on the outer periphery of the motor stator and is located below the cylinder. The cylinder base is provided with an exhaust passage communicating with the cylinder near the cylinder, and the exhaust chamber is connected to the exhaust passage via a pipeline. Positioning the exhaust chamber bottom-mounted avoids the need for an exhaust chamber or exhaust muffler above the cylinder base, thereby maintaining a clear space above the cylinder base.

[0019] Furthermore, the outer side of the cylinder is connected to a valve plate assembly and a cylinder head, and the lower side of the cylinder head is connected to an air intake silencer chamber.

[0020] Furthermore, the end of the connecting rod is connected to a piston via a piston pin, and the piston is disposed in the cylinder. An eccentric balancing disc is sleeved and connected to the upper end of the crankshaft, and the eccentric balancing disc is located above the connecting rod. The eccentric balancing disc not only acts as an end stop to prevent axial displacement of the connecting rod, but also balances rotational motion.

[0021] Furthermore, the motor enameled wire located below the motor stator is led outwardly for motor wiring. Leading out the motor wiring from below can utilize the empty space below the motor stator, avoiding leading out wiring from a position with more components above.

[0022] Furthermore, a plurality of cylinder seat legs are provided below the cylinder seat, the cylinder seat legs are supported on the motor stator, and are connected to the motor stator via long bolts, wherein the heads of the long bolts are located below the motor stator.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The flat structure refrigeration compressor sinks the cylinder head, crankcase, crankshaft and connecting rod, etc., so that there is no redundant component structure above the cylinder seat, thereby reducing the height of the compressor as a whole. Compared with similar products, the height can be reduced by more than 28mm; 2. The flat structure refrigeration compressor can control the height of the whole machine within 140mm, so that it can meet the needs of products with narrow installation space. In addition to being used in refrigerators to maximize the internal volume of refrigerators, the refrigeration compressor can also be expanded to small ice makers, dehumidifiers, and drinking water dispensers. 1. The lower end of the crankshaft and the connecting rod are designed to be lowered so that the upper end of the crankshaft does not need to extend out of the cylinder seat. On the other hand, the connecting rod is allowed to pass through the bottom of the cylinder seat to connect to the cylinder. From the appearance, it not only reduces the overall height but also achieves a hidden setting. The crankshaft and the connecting rod are completely blocked by the cylinder seat and are not exposed. 2. The lower end of the crankshaft and the connecting rod are designed to be lowered so that the upper end of the crankshaft and the connecting rod are allowed to pass through the bottom of the cylinder seat to connect to the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the refrigeration compressor structure of conventional height of the present invention

[0025] Figure 2 This is a schematic diagram of the overall structure of a flat refrigeration compressor according to the present invention;

[0026] Figure 3 This is a schematic top view of a refrigeration compressor with a flat structure according to the present invention;

[0027] Figure 4 This is a schematic top view of a cylinder base of a refrigeration compressor with a flat structure according to the present invention;

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of a flat refrigeration compressor of the present invention. Figure 1 ;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of a flat refrigeration compressor of the present invention. Figure 2 ;

[0030] In the figure: 1. Cylinder seat; 101. Makeway groove; 2. Cylinder; 3. Sunken crankcase; 301. First-stage sunken case; 302. Second-stage sunken case; 303. Third-stage sunken case; 4. Motor rotor; 401. First countersunk hole; 402. Second countersunk hole; 5. Motor stator; 6. Motor enameled wire; 7. Crankshaft; 8. Connecting rod; 9. First makeway space; 10. Second makeway space; 11. Eccentric disk; 12. Bearing; 13. Eccentric balancing disk; 14. Exhaust chamber; 15. Exhaust channel; 16. Valve plate assembly; 17. Cylinder head; 18. Intake silencer chamber; 19. Cylinder seat support foot; 20. Long bolt; 21. Motor wiring. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," etc., etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] like Figures 2 to 6As shown, a flat refrigeration compressor includes a motor assembly, a crankshaft assembly connected to the motor assembly, and a cylinder block 1; the highest point of the cylinder 2 on the side of the cylinder block 1 does not exceed the parting surface of the cylinder block 1, and a sunken crankcase 3 is provided below the cylinder block 1; the motor assembly includes a motor rotor 4 and a motor stator 5 arranged around the periphery of the motor rotor 4, and the sunken crankcase 3 is sunken toward the middle of the motor rotor 4;

[0034] The crankshaft assembly includes a crankshaft 7 and a connecting rod 8 connected to the crankshaft 7. The crankshaft 7 passes through the motor rotor 4 from bottom to top and is connected to the motor rotor 4. The upper half of the crankshaft 7 is sleeved in the sunken crankcase 3. The upper end of the crankshaft 7 does not exceed the upper surface of the cylinder block 1. The arrangement height of the connecting rod 8 is lower than the main body height of the cylinder block 1; the motor enameled wire 6 (winding) of the motor stator 5 is shaped downward on the side close to the cylinder 2 to form a first clearance space 9. The sunken crankcase 3 is provided with a radially penetrating second clearance space 10 on the side close to the cylinder 2. The connecting rod 8 passes through the second clearance space 10 and the first clearance space 9 and is connected to the cylinder 2.

[0035] This flat-structured refrigeration compressor sinks the cylinder head, crankcase, crankshaft and connecting rod, eliminating redundant components above the cylinder seat 1. This reduces the overall height of the compressor by more than 28 mm compared to similar products. Furthermore, this flat-structured refrigeration compressor can keep the overall height within 140 mm, meeting the needs of products with limited installation space. In addition to being used in refrigerators to maximize the internal volume of the refrigerator, this refrigeration compressor can also be expanded to small appliances such as small ice makers, dehumidifiers, and water dispensers, further enhancing product competitiveness.

[0036] Since a motor assembly is provided below the cylinder block 1, the sinking setting does not simply involve moving the upper components downward. Instead, it requires comprehensive consideration of the arrangement structure of the motor assembly and the crankshaft assembly, replanning the layout, and rationally utilizing the space between the motor assembly and the cylinder block. The sinking setting of this refrigeration compressor does not cause the motor assembly to rise.

[0037] The cylinder head portion of the cylinder 2 is sunken so that it is located on the side of the cylinder block 1, rather than on the side edge of the cylinder block 1. This arrangement frees up space above the cylinder block 1, thereby saving a significant amount of space above. With the cylinder 2 sunken design, the crankshaft 7 and its connecting rod 8 must also be sunken. This allows the upper end of the crankshaft 7 to pass through the cylinder block 1, while allowing the connecting rod 8 to pass under the cylinder block 1 to connect to the cylinder 2. This design not only reduces the overall height but also creates a concealed design. From a circumferential perspective, the crankshaft 7 and connecting rod 8 are completely hidden by the cylinder block 1 and are not exposed.

[0038] The setting of the sunken crankcase 3 is relatively critical. On the one hand, it is basically located in the motor assembly below, making full use of the space surrounded by the motor enameled wire 6 for arrangement, and at the same time more is arranged inside the motor rotor 4; on the other hand, the internal space of the sunken crankcase 3 can be used to arrange the crankshaft 7, especially the eccentric part above the crankshaft 7, so that it is completely located in the sunken crankcase 3, so that the arrangement height of the connecting rod can be reduced so that it can be connected to the outer cylinder.

[0039] The motor enameled wire 6 and the sunken crankcase 3 near the side of the cylinder 2 are reshaped to produce the first clearance space 9 and the second clearance space 10. These clearance spaces can allow the connecting rod to reciprocate within this range.

[0040] In some embodiments, the first clearance space 9 is reserved when the motor enameled wire is wound, and a slot is provided on the motor stator to allow the motor enameled wire to pass downward from here and leave space above; the second clearance space 10 can be cast together when making the cylinder block (the sunken crankcase and the cylinder block are also an integrated structure).

[0041] Furthermore, the sunken crankcase 3 includes a first-stage sunken box body 301, a second-stage sunken box body 302 and a third-stage sunken box body 303 from top to bottom, and the second-stage sunken box body 302 is lower than the maximum height of the motor enameled wire 6 of the motor stator 5; the motor rotor 4 is provided with a first countersunk hole 401 and a second countersunk hole 402, the third-stage sunken box body 303 is sleeved in the second countersunk hole 402, and the second-stage sunken box body 302 is sleeved in the first countersunk hole 401; the surrounding wall of the first-stage sunken box body 301 is provided with the second clearance space 10.

[0042] By setting up the three-level sunken box body, the sunken crankcase 3 can be better accommodated in the motor assembly, and can also provide multi-level layered space to accommodate the crankshaft assembly, making full use of both internal and external space.

[0043] On the one hand, the present application extends the length of the three-stage sinking box 303 and allows it to be sunk and sleeved in the second sinking hole of the motor device. On the other hand, a two-stage sinking box 302 is added to better support and accommodate the components on the crankshaft.

[0044] In some embodiments, an eccentric disk 11 is provided on the crankshaft 7. The crankshaft portion below the eccentric disk 11 is sleeved in the three-stage sinking box 303 and passes downward through the motor rotor 4. The crankshaft portion (eccentric portion) above the eccentric disk 11 is connected to the connecting rod 8. The eccentric disk 11 is located in the two-stage sinking box 302. A bearing 12 is provided at the inner bottom of the two-stage sinking box 302. The bearing 12 supports and connects the eccentric disk 11. This arrangement not only reduces the height of the eccentric portion of the crankshaft, but also better supports the eccentric portion, so that the eccentric portion can rotate within the designed range.

[0045] Furthermore, the first-stage sunken box 301 and the second-stage sunken box 302 are both truncated cone-shaped, the maximum outer diameter of the second-stage sunken box 302 is smaller than the minimum outer diameter of the first-stage sunken box 301, the third-stage sunken box 303 is cylindrical, the outer diameter of the third-stage sunken box 303 is smaller than the minimum outer diameter of the second-stage sunken box 302, and the axial dimension of the third-stage sunken box 303 is not less than half of the axial dimension of the motor rotor 4.

[0046] By setting the above-mentioned shapes and sizes, the first-level sinking box 301, the second-level sinking box 302 and the third-level sinking box 303 can form a stepped structure with a larger top and a smaller bottom. Such a structure not only facilitates its installation, but also provides a reasonable space to accommodate the eccentric disk and the connecting rod. The end of the connecting rod can rotate in the first-level sinking space driven by the eccentric part.

[0047] Furthermore, the cylinder block 1 is provided with a clearance groove 101 in a portion between the sunken crankcase 3 and the cylinder 2 , and the clearance groove 101 is communicated with the second clearance space 10 .

[0048] The provision of the clearance groove 101 can not only reduce the weight of the cylinder block body, but also connect it with the sunken crankcase 3, making it easier to install parts and also beneficial to the heat dissipation of the motor assembly. In existing cylinder blocks, since the connecting rod part is arranged at the top, this part is mostly closed.

[0049] Furthermore, the refrigeration compressor also includes a lower-mounted exhaust chamber 14, which is arranged on the outer periphery of the motor stator 5. The exhaust chamber 14 is located below the cylinder 2. The cylinder base 1 is provided with an exhaust channel 15 connected to the cylinder 2 near the cylinder 2, and the exhaust chamber 14 is connected to the exhaust channel 15 through a pipeline.

[0050] By setting the exhaust chamber 14 to be bottom-mounted, it is possible to avoid setting an exhaust chamber or an exhaust muffler chamber above the cylinder block 1, thereby keeping the space above the cylinder block 1 empty; the exhaust passage 15 and the pipeline can also be conveniently connected to the cylinder and the valve plate assembly to achieve a normal exhaust effect.

[0051] Furthermore, a valve plate assembly 16 and a cylinder head 17 are connected to the outside of the cylinder 2 , and an air intake muffler chamber 18 is arranged below the cylinder head 17 .

[0052] The intake silencer chamber 18 is arranged below the cylinder head 17, which can just offset the exhaust chamber 14, so that the two chambers can be arranged side by side on the periphery of the motor assembly; the existing intake silencer chambers are mostly arranged below the cylinder, which is the position of the exhaust chamber in this application; after the intake silencer chamber 18 is moved outward in this application, the inner space can be made available for installing the exhaust chamber 14. The structural adjustment here also allows the intake silencer chamber 18 to be connected to the outside of the cylinder head 17 instead of being connected to the cylinder.

[0053] Furthermore, the end of the connecting rod 8 is connected to a piston via a piston pin, and the piston is disposed in the cylinder 2. An eccentric balancing disc 13 is sleeved and connected to the upper end of the crankshaft 7, and is located above the connecting rod 8. The eccentric balancing disc 13 serves as an end stop, preventing axial displacement of the connecting rod 8, and also balances rotational motion. The eccentric balancing disc 13 is also substantially contained within the first-stage sinking box 301, and its highest point does not exceed the parting surface of the cylinder base.

[0054] Furthermore, the motor enameled wire 6 located below the motor stator 5 leads outward to the motor wiring 21. Leading out the motor wiring 21 from the bottom can also save axial space. Since the upper part of the motor assembly already accommodates many components, it is not appropriate to lead out the wiring from the top.

[0055] Furthermore, a plurality of cylinder seat legs 19 are provided below the cylinder seat 1 . The cylinder seat legs 19 are supported on the motor stator 5 and connected to the motor stator 5 via long bolts 20 . The heads of the long bolts 20 are located below the motor stator 5 .

[0056] The cylinder seat support foot 19 can be used to better connect and fix the cylinder seat 1. The cylinder seat support foot 19 is slightly higher than the height of the winding above the motor assembly (the upper motor enameled wire), which reduces the overall axial height as much as possible; the long bolt 20 is passed through and connected from the bottom to the top, which can also avoid the appearance of connecting parts above the cylinder seat 1 and utilize the space below the motor stator 5.

[0057] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A refrigeration compressor with a flat structure, comprising a motor assembly, a crankshaft assembly connected to the motor assembly, and a cylinder block; characterized in that: The highest point of the cylinder on the side of the cylinder seat does not exceed the parting surface of the cylinder seat, and a sunken crankcase is provided below the cylinder seat; the motor assembly includes a motor rotor and a motor stator arranged on the periphery of the motor rotor, and the sunken crankcase is sunken toward the middle of the motor rotor; The crankshaft assembly includes a crankshaft and a connecting rod connected to the crankshaft. The crankshaft passes through the motor rotor from bottom to top and is connected to the motor rotor. The upper half of the crankshaft is sleeved in the sunken crankcase. The upper end of the crankshaft does not exceed the upper surface of the cylinder seat. The arrangement height of the connecting rod is lower than the main body height of the cylinder seat. The motor enameled wire of the motor stator is shaped downward on the side close to the cylinder to form a first clearance space. The sunken crankcase is provided with a penetrating second clearance space on the side close to the cylinder. The connecting rod passes through the second clearance space and the first clearance space and is connected to the cylinder. The sunken crankcase includes a first-stage sunken case, a second-stage sunken case, and a third-stage sunken case from top to bottom, wherein the second-stage sunken case is lower than the maximum height of the motor enameled wire of the motor stator; a first countersunk hole and a second countersunk hole are provided on the motor rotor, the third-stage sunken case is sleeved in the second countersunk hole, and the second-stage sunken case is sleeved in the first countersunk hole; the second clearance space is provided on the peripheral wall of the first-stage sunken case; An eccentric disk is provided on the crankshaft, the crankshaft portion below the eccentric disk is sleeved in the three-stage sinking box and passes downward through the motor rotor, and the crankshaft portion above the eccentric disk is connected to the connecting rod; the eccentric disk is located in the two-stage sinking box, and a bearing is provided at the inner bottom of the two-stage sinking box, and the bearing supports and connects the eccentric disk; The first-stage sunken box and the second-stage sunken box are both truncated cone-shaped, the maximum outer diameter of the second-stage sunken box is smaller than the minimum outer diameter of the first-stage sunken box, the third-stage sunken box is cylindrical, the outer diameter of the third-stage sunken box is smaller than the minimum outer diameter of the second-stage sunken box, and the axial dimension of the third-stage sunken box is not less than half of the axial dimension of the motor rotor.

2. The refrigeration compressor with a flat structure according to claim 1, characterized in that: The cylinder seat is provided with a clearance groove in a portion between the sunken crankcase and the cylinder, and the clearance groove is communicated with the second clearance space.

3. The refrigeration compressor with a flat structure according to claim 1, characterized in that: It also includes a lower exhaust chamber, which is arranged on the outer periphery of the motor stator. The exhaust chamber is located below the cylinder. The cylinder seat is provided with an exhaust channel connected to the cylinder near the cylinder, and the exhaust chamber is connected to the exhaust channel through a pipeline.

4. The refrigeration compressor with a flat structure according to claim 1, characterized in that: The outer side of the cylinder is also connected to a valve plate assembly and a cylinder cover, and the lower side of the cylinder cover is connected to an air intake silencer chamber.

5. The refrigeration compressor with a flat structure according to claim 1, characterized in that: The end of the connecting rod is connected to a piston via a piston pin, and the piston is arranged in the cylinder; the upper end of the crankshaft is also sleeved and connected with an eccentric balancing disk, and the eccentric balancing disk is located above the connecting rod.

6. The refrigeration compressor with a flat structure according to claim 1, characterized in that: The motor enameled wire located below the motor stator is led outwards to connect the motor.

7. The refrigeration compressor with a flat structure according to claim 1, characterized in that: A plurality of cylinder seat legs are provided below the cylinder seat. The cylinder seat legs are supported on the motor stator and connected to the motor stator via long bolts. The heads of the long bolts are located below the motor stator.

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