A micro refrigeration compressor orbiting scroll mounting structure

Abstract

The utility model provides a kind of dynamic disc mounting structure of micro refrigeration compressor belongs to refrigeration equipment technical field.A kind of dynamic disc mounting structure of micro refrigeration compressor includes shell, stator assembly, rotor assembly, dynamic disc and eccentric column;The utility model is installed in the inner cavity of shell by stator assembly, and rotor assembly is installed in stator assembly, dynamic disc is built-in in rotor assembly, simultaneously, the both ends of shell are provided with the slide rail of protruding and along annular arrangement, and the both ends of dynamic disc are provided with annular slide groove and are respectively matched with two slide rails, so that the both ends of shell can be stabilized support to the both ends of dynamic disc by slide rail, and adapt the rotation demand of dynamic disc and rotor assembly, simultaneously, by built-in in rotor assembly, realize shaft connection and transmission without, under the condition of guaranteeing stable rotation, simplified structure makes the length of structure whole shorter, to realize the light and thin design of micro refrigeration compressor, improve its use adaptability.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, specifically to a moving disc mounting structure for a micro refrigeration compressor. Background Technology

[0002] Existing micro refrigeration compressors on the market typically employ a structure where the compression component and drive component are arranged separately, connected by an output shaft. This allows the drive component to actuate the compression component, drawing in and compressing the medium before discharging it to meet refrigeration compression requirements. For example, patent CN216589104U discloses a rotary valve micro compressor, whose housing contains a stator mechanism, a rotor mechanism, and a rotary compression mechanism. The rotor mechanism is rotatably mounted within the stator mechanism. Furthermore, the rotary compression mechanism includes a power cylinder with an upper cover that covers the upper opening of the compression chamber. A rotating shaft with one end extending through the upper cover is mounted on the compression rotor, and the rotor mechanism is inserted into the shaft. A lower cover that covers the lower opening of the compression chamber is located at the lower end of the power cylinder. In addition, the compression rotor is located inside the compression chamber of the power cylinder, and the rotation center of the compression rotor is offset from the center of the compression chamber. The sidewall of the compression rotor is equipped with a first valve plate and a second valve plate that can move towards the inner sidewall of the compression chamber to separate the chamber. The compression block is equipped with a first elastic element that can respectively press the first and second valve plates towards the inner wall of the compression chamber. During operation, the rotor mechanism rotates under the action of the stator mechanism, driving the compression rotor to rotate within the compression chamber via the shaft. Because the compression rotor is eccentrically arranged within the compression chamber, its rotation changes the size of the separated compression chamber, thereby achieving the intake, compression, and discharge of the medium to meet the refrigeration compression requirements. Although the above structure can meet the refrigeration compression requirements, it still requires a shaft to power the rotor mechanism and the rotary compression mechanism. Furthermore, the rotor mechanism and the rotary compression mechanism are located at opposite ends of the axial direction of the shaft, resulting in a relatively long overall length for the micro refrigeration compressor. This not only leads to numerous assembly and connection structures and a complex structure but also results in insufficient miniaturization, failing to meet the requirements for a lightweight and thin design. Summary of the Invention

[0003] To address the aforementioned problems in the existing technology, this paper aims to provide a moving plate mounting structure for a micro refrigeration compressor. This structure features annular slide rails arranged on the outer casing at both ends of the moving plate. Simultaneously, corresponding slide grooves are provided at both ends of the moving plate. The moving plate is then embedded within the rotor assembly. This allows the moving plate to be supported and accommodated by the slide rails and grooves when the rotor assembly drives the moving plate to rotate. This design not only ensures stable mounting of the moving plate and rotor assembly within the stator assembly but also achieves a shaftless connection design. The structure is simple, and the embedded moving plate within the rotor assembly makes the micro refrigeration compressor lighter and thinner.

[0004] The specific technical solution is as follows: A moving plate mounting structure for a miniature refrigeration compressor includes a housing, a stator assembly, a rotor assembly, a moving plate, and an eccentric column. The housing has a cavity, the stator assembly is mounted on the inner wall of the housing, and the rotor assembly is coaxially mounted inside the stator assembly and rotates relative to the stator assembly. The moving plate has the following features: the moving plate is a ring-shaped structure; both ends of the housing are respectively provided with slide rails that protrude into the cavity and are arranged along the ring; and both ends of the moving plate are respectively provided with ring-shaped grooves. After the moving plate is assembled into place, the grooves at both ends of the moving plate cooperate with the slide rails at both ends of the housing.

[0005] In the aforementioned moving plate mounting structure of a miniature refrigeration compressor, each slide rail is divided into several spaced slide segments, and several slide segments of the same slide rail are arranged on the same circle, and each slide segment is embedded in a corresponding slide groove.

[0006] In the aforementioned moving plate mounting structure of a miniature refrigeration compressor, the cross-sectional profile of the protruding side of the slide rail is arc-shaped, and the cross-sectional profile of the slide groove is also arc-shaped.

[0007] The aforementioned moving plate mounting structure of a micro refrigeration compressor includes a split outer shell, which comprises a barrel shell and an end cap. The barrel shell has an end cap installed at its opening, and slide rails are provided on the bottom of the barrel shell and the end cap.

[0008] In the aforementioned moving plate mounting structure of a micro refrigeration compressor, an eccentric column is provided in the cavity of the outer shell, and the eccentric column extends into the center hole of the moving plate. The eccentric column and the end cover are an integral structure, or the eccentric column, the end cover, and the bottom of the barrel shell are arranged separately.

[0009] The aforementioned moving plate mounting structure of a micro refrigeration compressor includes a plurality of telescopic grooves on the inner side wall of the central hole of the moving plate. Each telescopic groove is provided with a telescopic blade, and one end of each telescopic blade extends into the central hole and abuts against the outer side wall of the eccentric column. Each telescopic groove is provided with a telescopic spring, and the two ends of the telescopic spring abut against the bottom of the telescopic groove and the corresponding telescopic blade, respectively.

[0010] In the aforementioned moving plate mounting structure of a miniature refrigeration compressor, each telescopic blade is provided with at least two telescopic springs, and the telescopic springs on the same telescopic blade are arranged at intervals along the axial direction of the moving plate.

[0011] The positive effects of the above technical solution are: The aforementioned micro refrigeration compressor's moving plate mounting structure integrates the moving plate within the rotor assembly, allowing the rotor assembly to directly drive the moving plate to rotate. Furthermore, both ends of the outer casing are equipped with protruding slide rails arranged along a ring, and both ends of the moving plate are equipped with annular grooves corresponding to the two slide rails. This allows the two ends of the moving plate to be stably supported by the outer casing through the cooperation of the slide rails and grooves, adapting to the rotational movement requirements of the moving plate. This structure not only provides stable support for the moving plate and rotor assembly and meets rotational requirements, but also achieves shaftless connection and transmission. The structure is simpler, the overall length is shorter, and it is beneficial for the lightweight and thin design of the micro refrigeration compressor. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the moving plate mounting structure of a miniature refrigeration compressor according to the present invention; Figure 2 This is a structural diagram of the moving disk according to a preferred embodiment of the present invention; Figure 3 This is a structural diagram of the barrel shell according to a preferred embodiment of the present invention; Figure 4 This is a structural diagram of the end cap of a preferred embodiment of the present invention.

[0013] In the attached diagram: 1. Outer shell; 11. Barrel shell; 12. End cap; 111. Cavity; 121. Slide rail; 1211. Slide section; 2. Stator assembly; 3. Rotor assembly; 4. Moving disc; 41. Slide groove; 42. Telescopic groove; 43. Telescopic blade; 44. Telescopic spring; 5. Eccentric column. Detailed Implementation

[0014] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 4 The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.

[0015] Figure 1 This is a cross-sectional view of the moving plate mounting structure of a miniature refrigeration compressor according to this utility model. Figure 1 As shown, the moving plate mounting structure of the micro refrigeration compressor provided in this embodiment includes: a housing 1, a stator assembly 2, a rotor assembly 3, a moving plate 4, and an eccentric column 5. The housing 1 has a cavity 111, providing installation and movement space for the stator assembly 2, rotor assembly 3, moving plate 4, and eccentric column 5. During assembly, the stator assembly 2 is mounted on the inner wall of the housing 1, and the rotor assembly 3 is coaxially mounted inside the stator assembly 2 and rotates relative to the stator assembly 2. The stator assembly 2 and rotor assembly 3 together constitute a motor drive structure, providing power for the subsequent rotation of the moving plate 4.

[0016] Figure 2 This is a structural diagram of the moving disk according to a preferred embodiment of the present invention; Figure 3 This is a structural diagram of the barrel shell according to a preferred embodiment of the present invention; Figure 4 This is a structural diagram of the end cap according to a preferred embodiment of the present invention. Figures 1 to 4 As shown, the moving disk 4 has a circular structure, which ensures that the rotation of the moving disk 4 is a parallel circular rotation. This ensures that the moving disk 4 can smoothly follow the rotation of the rotor assembly 3 without the need for additional clearance space to accommodate its rotation, thus achieving noise reduction and vibration damping. At the same time, both ends of the outer shell 1 are respectively provided with slide rails 121 that protrude into the cavity 111 and are arranged along the circular ring. This allows the structural shape of the slide rails 121 to adapt to the rotational motion of the rotor assembly 3 and the moving disk 4. Furthermore, annular grooves 41 are respectively provided at both ends of the moving disk 4. After the moving disk 4 is assembled in place, the grooves 41 at both ends of the moving disk 4 cooperate with the slide rails 121 at both ends of the outer shell 1. The moving disk 4 is stably supported in the cavity 111 of the outer shell 1 through the grooves 41 and the slide rails 121. At this time, since the moving disk 4 is installed in the rotor assembly 3, it also achieves stable support for the rotor assembly 3, realizes shaftless installation and transmission of the rotor assembly 3 and the moving disk 4, and can adapt to the rotation requirements of the rotor assembly 3 and the moving disk 4. The structure is simple and the overall length is shorter, making the micro refrigeration compressor lighter and thinner. It is worth noting that the slide rails 121 can also be set at both ends of the moving disk 4, and the grooves 41 are correspondingly arranged on both ends of the outer shell 1. That is, the specific positions of the grooves 41 and the slide rails 121 on the outer shell 1 and the moving disk 4 can be selected according to actual needs, and should also be considered as the same as the technical solution disclosed in this embodiment.

[0017] Specifically, each slide rail 121 is further divided into several spaced-apart slide segments 1211, and each slide segment 1211 is an arc-shaped structure, which can better adapt to the rotational movement of the moving disk 4. Furthermore, the slide segments 1211 of the same slide rail 121 are arranged on the same circle, that is, the slide rail 121 is formed by several spaced-apart slide segments 1211 arranged along a circle. Each slide segment 1211 is embedded in a corresponding groove 41. The movement of the slide segment 1211 within the groove 41 adapts to the rotation of the moving disk 4, providing support for the moving disk 4 and the rotor assembly 3. At the same time, it reduces the total length of the slide rail 121 in contact with the groove 41, reducing the contact area and thus reducing frictional loss. The structural design is more rational. More specifically, the cross-sectional profile of the side of the slide rail 121 protruding towards the inside of the cavity 111 is arc-shaped. Similarly, the cross-sectional profile of the slide groove 41 is also arc-shaped, making the outer wall of the slide rail 121 and the inner wall of the slide groove 41 both smoothly transitioned. This results in less friction, less wear, and a longer service life when the slide groove 41 and the slide rail 121 slide relative to each other. In addition, when the moving plate 4 is installed inside the housing 1, the arc-shaped guide function can achieve automatic alignment of the slide groove 41 and the slide rail 121 without additional adjustment, which is beneficial for assembly. It is worth noting that although this embodiment proposes that the cross-sectional profiles of the slide rail 121 and the slide groove 41 are arc-shaped, it does not exclude that the cross-sections of the slide rail 121 and the slide groove 41 are inclined, polygonal, or other irregular structures. Different cross-sectional profiles do not affect the cooperative use of the slide rail 121 and the slide groove 41. Therefore, it should be considered that slide rails 121 and slide grooves 41 with other cross-sectional profiles are also within the protection scope of the technical solution disclosed in this embodiment.

[0018] More specifically, the outer shell 1 has a split structure, which facilitates the opening and closing of the cavity 111 of the outer shell 1, thereby facilitating the assembly and disassembly of the stator assembly 2, rotor assembly 3, and moving disk 4 within the cavity 111. At this time, the outer shell 1 also includes a barrel shell 11 and end caps 12. The end caps 12 are installed at the opening of the barrel shell 11, forming a support structure at both ends of the barrel shell 11 through the end caps 12 and the bottom of the barrel shell 11, facilitating the stable installation of the moving disk 4 within the cavity 111 of the outer shell 1 and its rotation within the cavity 111. Furthermore, slide rails 121 are provided on both the bottom of the barrel shell 11 and the end caps 12, providing a carrier for the arrangement of the slide rails 121. Preferably, the two slide rails 121 are integrally integrated with the bottom of the barrel shell 11 and the end caps 12, respectively, resulting in better load-bearing capacity of the slide rails 121 and greater stability of the moving disk 4 after installation.

[0019] More specifically, an eccentric column 5 is provided within the cavity 111 of the outer shell 1, and the eccentric column 5 extends into the central hole of the moving disk 4. When the moving disk 4 rotates with the rotor assembly 3, the position of the eccentric column 5 within the central hole of the moving disk 4 changes, thereby altering the volume of the cavities created by the eccentric column 5 within the moving disk 4. This change in volume allows for the intake, compression, and discharge of the medium, meeting the refrigeration compression requirements. Preferably, the eccentric column 5 and the end cap 12 are integrally formed, resulting in higher structural strength and easier assembly. Alternatively, the eccentric column 5, the end cap 12, and the bottom of the casing 11 can be arranged separately, offering greater structural flexibility and facilitating the manufacturing of each component. It is worth noting that when the eccentric column 5 and the end cap 12 are an integral structure, it is not ruled out that the eccentric column 5 and the bottom of the barrel shell 11 can also be an integral structure. That is, the eccentric column 5 can be integral with either the end cap 12 or the bottom of the barrel shell 11, as long as the requirement of stable installation of the eccentric column 5 on the end cap 12 or the bottom of the barrel shell 11 is met. When the eccentric column 5 is arranged separately from the end cap 12 and the bottom of the barrel shell 11, both the end cap 12 and the bottom of the barrel shell 11 are provided with insertion holes. At the same time, both ends of the eccentric column 5 are provided with protruding plugs, so that the eccentric column 5 can be stably connected by inserting the plugs at both ends into the two insertion holes respectively. Furthermore, the plugs can be polygonal in structure, and the insertion holes can also be polygonal holes that match them, so that the plugs will not rotate circumferentially after being inserted into the insertion holes, thereby maintaining the stability of the eccentric column 5 after installation in the outer shell 1.

[0020] More specifically, several telescopic grooves 42 are provided on the inner wall of the central hole of the moving disk 4, and each telescopic groove 42 is provided with a telescopic blade 43. One end of each telescopic blade 43 extends into the central hole and abuts against the outer wall of the eccentric column 5. The telescopic blade 43 fills the gap between the eccentric column 5 and the inner wall of the central hole of the moving disk 4, resulting in better sealing and independence of the separated volumetric cavity, thus ensuring the compression effect. It is worth noting that each telescopic groove 42 is provided with a telescopic spring 44, and both ends of the telescopic spring 44 abut against the bottom of the groove 42 and the corresponding telescopic blade 43, respectively. The telescopic spring 44 maintains the telescopic movement capability of the telescopic blade 43, ensuring that when the moving disk 4 rotates relative to the eccentric column 5, the end of the telescopic blade 43 always remains abutting against the eccentric column 5, resulting in a more rational structural design.

[0021] More specifically, at least two telescopic springs 44 are provided on each telescopic blade 43. In this case, the telescopic springs 44 on the same telescopic blade 43 are arranged at intervals along the axial direction of the moving plate 4, so that each telescopic blade 43 is supported by multiple telescopic springs 44, which improves the support capacity and maintains the uniformity of force on the telescopic blade 43. This prevents poor sealing or excessive wear in some areas caused by uneven force on the telescopic blade 43, ensuring performance and extending service life.

[0022] The moving disk mounting structure of the micro refrigeration compressor provided in this embodiment includes a housing 1, a stator assembly 2, a rotor assembly 3, a moving disk 4, and an eccentric column 5. By embedding the moving disk 4 inside the rotor assembly 3, and with both ends of the housing 1 having protruding slide rails 121 arranged along a ring, and both ends of the moving disk 4 having annular grooves 41 that cooperate with the two slide rails 121 respectively, the two ends of the housing 1 can directly and stably support the two ends of the moving disk 4 through the slide rails 121, and adapt to the rotation requirements of the moving disk 4 and the rotor assembly 3. At the same time, by embedding the moving disk 4 inside the rotor assembly 3, shaftless connection and transmission are achieved, simplifying the structure while ensuring stable rotation, making the overall length of the structure shorter, thereby realizing the thin and light design of the micro refrigeration compressor and improving its adaptability to use.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A moving disk mounting structure for a micro refrigeration compressor, comprising a housing, a stator assembly, a rotor assembly, a moving disk, and an eccentric column, wherein the housing has a cavity, the stator assembly is mounted on the inner wall of the housing, and the rotor assembly is coaxially mounted within the stator assembly and rotates relative to the stator assembly, characterized in that, The moving plate has a circular structure. The two ends of the outer shell are respectively provided with slide rails that protrude into the cavity and are arranged along the ring. Furthermore, circular grooves are respectively opened at both ends of the moving plate. After the moving plate is assembled into place, the grooves at both ends of the moving plate cooperate with the slide rails at both ends of the outer shell.

2. The moving disc mounting structure of the micro refrigeration compressor according to claim 1, characterized in that, Each slide rail is divided into several spaced slide segments, and several slide segments of the same slide rail are arranged on the same circle, with each slide segment embedded in the corresponding slide groove.

3. The moving disc mounting structure of the micro refrigeration compressor according to claim 1, characterized in that, The cross-sectional profile of the protruding side of the slide rail is arc-shaped, and the cross-sectional profile of the slide groove is arc-shaped.

4. The moving disc mounting structure of the micro refrigeration compressor according to claim 1, characterized in that, The outer shell is a split structure, which includes a barrel shell and an end cap. The end cap is installed at the mouth of the barrel shell, and the slide rail is provided on the bottom of the barrel shell and the end cap.

5. The moving disc mounting structure of the micro refrigeration compressor according to claim 4, characterized in that, An eccentric column is provided in the cavity of the outer shell, and the eccentric column extends into the center hole of the moving plate. The eccentric column and the end cap are integral structures, or the eccentric column, the end cap, and the bottom of the barrel shell are arranged separately.

6. The moving disc mounting structure of the micro refrigeration compressor according to claim 5, characterized in that, The inner wall of the central hole of the moving plate is provided with several telescopic grooves. Each telescopic groove is provided with a telescopic blade, and one end of each telescopic blade extends into the central hole and abuts against the outer wall of the eccentric column. Each telescopic groove is provided with a telescopic spring, and the two ends of the telescopic spring abut against the bottom of the telescopic groove and the corresponding telescopic blade, respectively.

7. The moving disc mounting structure of the micro refrigeration compressor according to claim 6, characterized in that, Each of the telescopic blades is provided with at least two telescopic springs, and the telescopic springs on the same telescopic blade are arranged at intervals along the axial direction of the moving disk.

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