High-efficiency refrigeration compressor for freezer
By using a limiting structure and rubber ring design, the assembly and disassembly of the freezer's refrigeration compressor are simplified, solving the problems of cumbersome assembly and disassembly and high maintenance costs, and achieving convenient maintenance and improved sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGBEI ELECTROMECHANICAL (JIANGSU) CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-07
AI Technical Summary
Existing refrigeration compressors are cumbersome to disassemble and assemble, and have high maintenance costs, resulting in long equipment downtime, affecting user efficiency and increasing maintenance costs.
The compressor employs a limiting structure and rubber ring design, which combines a limiting block, a movable pin, and a helical spring to facilitate the assembly and disassembly of the upper and lower housings. The rubber ring and annular protrusion enhance the sealing performance.
It simplifies the assembly and disassembly process of the compressor, shortens maintenance time, improves maintenance efficiency, and enhances the sealing of the connections.
Smart Images

Figure CN224469280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of freezer technology, specifically to a high-efficiency refrigeration compressor for freezers. Background Technology
[0002] The refrigeration compressor is a core component in refrigeration equipment such as freezers, and its performance and reliability directly affect the refrigeration efficiency and lifespan of the freezer. Currently, common refrigeration compressors typically consist of an upper compressor housing and a lower compressor housing, which are usually fixed together by multiple bolts or screws.
[0003] The following problems exist during actual use:
[0004] 1. Cumbersome disassembly and assembly: When the compressor needs maintenance or repair, special tools must be used to disassemble multiple fasteners one by one. The operation steps are cumbersome and time-consuming, which increases the downtime of the equipment and affects the user's efficiency.
[0005] 2. High maintenance costs: Due to the complexity of the disassembly and assembly process, it may require professional personnel to operate, which increases the labor and time costs of maintenance.
[0006] Therefore, we propose a high-efficiency refrigeration compressor for freezers. Utility Model Content
[0007] (a) Technical problems to be solved
[0008] To address the shortcomings of existing technologies, this utility model provides a high-efficiency refrigeration compressor for freezers, which facilitates the assembly and disassembly of the compressor's upper and lower housings, improves maintenance efficiency, and shortens downtime for maintenance, thus effectively solving the problems in the background technology.
[0009] (II) Technical Solution
[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-efficiency refrigeration compressor for a freezer, comprising a lower compressor housing and an upper compressor housing. Fixed feet are fixedly installed on the left and right sides of the lower outer surface of the lower compressor housing. A junction box is installed on one side of the lower compressor housing. A fixed ring is fixedly installed on the outer wall of the top of the lower compressor housing. A connecting ring is fixedly installed on the outer wall of the bottom of the upper compressor housing. An installation ring is fixedly installed on the upper outer surface of the fixed ring. Limiting structures are provided on the left and right sides of the inner wall of the installation ring. The limiting structure includes an installation hole, a helical spring, a movable pin, and a limiting block. The limiting block is fixed to the outer surface of one end of the movable pin. A first inclined surface is formed on the upper outer surface of the limiting block. A second inclined surface is formed on the lower outer surface of the first inclined surface away from the movable pin. An annular groove is formed on the lower outer surface of the connecting ring. A rubber ring is adhered to the upper part of the fixed ring, and an annular protrusion is provided in the middle of the upper end of the rubber ring.
[0011] Preferably, the outer wall of the connecting ring and the inner wall of the mounting ring are interlocked, the connecting ring is limited to the upper outer surface of the fixed ring, and the limiting block in the limiting structure is used to limit the connecting ring.
[0012] Preferably, after the limiting block is positioned at the upper part of the connecting ring, the annular protrusion is inserted into the annular groove, and the connecting ring is pressed against the upper outer surface of the rubber ring.
[0013] Preferably, the mounting holes are located on the left and right sides of the inner wall of the mounting ring, and the helical spring and the movable pin are both located in the mounting holes.
[0014] Preferably, the helical spring is fixed between one end of the mounting hole and the outer surface of one end of the movable pin.
[0015] Preferably, the outer wall of the movable pin and the limiting block is slidably connected to the mounting hole, and one end of the outer surface of the movable pin is elastically connected to one end of the mounting hole through a helical spring.
[0016] (III) Beneficial Effects
[0017] Compared with the prior art, this utility model provides a high-efficiency refrigeration compressor for freezers, which has the following beneficial effects:
[0018] 1. This high-efficiency refrigeration compressor for freezers facilitates assembly and disassembly between the upper and lower casings of the compressor, improving maintenance efficiency and reducing downtime for maintenance.
[0019] 2. This high-efficiency refrigeration compressor for freezers, through the setting of a rubber ring and annular protrusion, facilitates the improvement of the sealing performance of the connection between the upper and lower casings of the compressor. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency refrigeration compressor for a freezer according to the present invention.
[0021] Figure 2 This is a side cross-sectional view of the fixed ring, connecting ring, and mounting ring in a high-efficiency refrigeration compressor for a freezer according to this utility model.
[0022] Figure 3 This is a schematic diagram of the structure of the rubber ring and the annular protrusion in a high-efficiency refrigeration compressor for a freezer according to the present invention.
[0023] Figure 4 This is a schematic diagram of the bottom structure of the connecting ring in a high-efficiency refrigeration compressor for a freezer according to the present invention.
[0024] In the diagram: 1. Compressor lower housing; 2. Compressor upper housing; 3. Fixing foot plate; 4. Junction box; 5. Fixing ring; 6. Connecting ring; 7. Mounting ring; 8. Limiting structure; 9. Rubber ring; 10. Annular protrusion; 11. Annular groove; 12. Mounting hole; 13. Helical spring; 14. Movable pin; 15. Limiting block; 16. First inclined surface; 17. Second inclined surface. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] This embodiment is a high-efficiency refrigeration compressor for a freezer.
[0027] like Figure 1-4 As shown, the compressor includes a lower housing 1 and an upper housing 2. Fixed feet 3 are fixedly installed on the left and right sides of the lower outer surface of the compressor lower housing 1. A junction box 4 is installed on one side of the compressor lower housing 1. A fixed ring 5 is fixedly installed on the outer wall of the top of the compressor lower housing 1. A connecting ring 6 is fixedly installed on the outer wall of the bottom of the compressor upper housing 2. An installation ring 7 is fixedly installed on the upper outer surface of the fixed ring 5. Limiting structures 8 are provided on the left and right sides of the inner wall of the installation ring 7. The limiting structure 8 includes an installation hole 12, a coil spring 13, a movable pin 14, and a limiting block 15. The limiting block 15 is fixed to the outer surface of one end of the movable pin 14. A first inclined surface 16 is opened on the upper outer surface of the limiting block 15. A second inclined surface 17 is opened on the lower outer surface of the first inclined surface 16 away from the movable pin 14. An annular groove 11 is opened on the lower outer surface of the connecting ring 6. A rubber ring 9 is glued to the upper part of the fixed ring 5. An annular protrusion 10 is provided in the middle of the upper end of the rubber ring 9.
[0028] The outer wall of the connecting ring 6 and the inner wall of the mounting ring 7 are inserted together. The connecting ring 6 is limited to the upper outer surface of the fixed ring 5, and the limiting block 15 in the limiting structure 8 is used to limit the connecting ring 6. After the limiting block 15 is limited to the upper part of the connecting ring 6, the annular protrusion 10 is inserted into the annular groove 11, and the connecting ring 6 is pressed against the upper outer surface of the rubber ring 9. The mounting holes 12 are opened on the left and right sides of the inner wall of the mounting ring 7. The helical spring 13 and the movable pin 14 are both located in the mounting holes 12. The helical spring 13 is fixed between one end of the mounting hole 12 and the outer surface of one end of the movable pin 14. The outer wall of the movable pin 14 and the limiting block 15 are slidably connected to the mounting hole 12. The outer surface of one end of the movable pin 14 is elastically connected to one end of the mounting hole 12 through the helical spring 13.
[0029] It should be noted that this utility model is a high-efficiency refrigeration compressor for a freezer. The compressor lower shell 1, compressor upper shell 2, fixing foot plate 3, and junction box 4 described in this article are all existing technologies and can be effectively understood by those skilled in the art. Specific details will not be elaborated further. The fixing ring 5 is fixed to the outer wall of the upper part of the compressor lower shell 1, and the connecting ring 6 is fixed to the outer wall of the lower part of the compressor upper shell 2. When installing the compressor upper shell 2 and compressor lower shell 1, it is only necessary to directly press the compressor upper shell 2 onto the upper part of the compressor lower shell 1. Specifically, the connecting ring 6 presses against the first inclined surface 16 of the upper part of the limiting block 15 in the limiting structure 8, causing the limiting block 15 and the movable pin 14 to move. The movable pin 14 presses against the helical spring 13 in the mounting hole 12. When the connecting ring 6 moves to the lower part of the limiting block 15, the... The reaction force of the helical spring 13 causes the limiting block 15 to be positioned at the upper part of the connecting ring 6, and the connecting ring 6 is inserted into the outer wall of the annular protrusion 10 through the annular groove 11. The lower end of the connecting ring 6 presses against the rubber ring 9, thereby achieving assembly. The rubber ring 9 and the annular protrusion 10 together provide a sealing effect. When disassembling, the limiting block 15 is pressed, and one end of the limiting block 15 moves into the mounting hole 12. Then, the compressor upper housing 2 is pulled upward. The compressor upper housing 2 causes the upper part of the connecting ring 6 to press against the position of the second inclined surface 17, causing the limiting block 15 to continue moving and slide along the mounting hole 12. This allows the compressor upper housing 2 to be pulled upward, thus achieving disassembly. The compressor upper housing 2 and the compressor lower housing 1 are easy to assemble and disassemble, improving maintenance efficiency and shortening downtime for maintenance.
[0030] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A high-efficiency refrigeration compressor for a freezer, comprising a lower compressor housing (1) and an upper compressor housing (2), wherein fixing feet (3) are fixedly installed on the left and right sides of the lower outer surface of the lower end of the lower compressor housing (1), and a junction box (4) is installed on one side of the lower compressor housing (1), characterized in that: A fixing ring (5) is fixedly installed on the outer wall of the top of the compressor lower housing (1), a connecting ring (6) is fixedly installed on the outer wall of the bottom of the compressor upper housing (2), an installation ring (7) is fixedly installed on the upper outer surface of the fixing ring (5), and a limiting structure (8) is provided on the left and right sides of the inner wall of the installation ring (7). The limiting structure (8) includes an installation hole (12), a helical spring (13), a movable pin (14) and a limiting block (15). The limiting block (15) is fixed on the outer surface of one end of the movable pin (14). A first inclined surface (16) is provided on the upper outer surface of the limiting block (15). A second inclined surface (17) is provided on the side of the lower outer surface of the first inclined surface (16) away from the movable pin (14). An annular groove (11) is provided on the lower outer surface of the connecting ring (6). A rubber ring (9) is bonded to the upper part of the fixing ring (5). An annular protrusion (10) is provided in the middle of the upper end of the rubber ring (9).
2. The high-efficiency refrigeration compressor for a freezer according to claim 1, characterized in that: The outer wall of the connecting ring (6) and the inner wall of the mounting ring (7) are inserted together. The connecting ring (6) is limited to the upper outer surface of the fixing ring (5), and the limiting block (15) in the limiting structure (8) is used to limit the connecting ring (6).
3. The high-efficiency refrigeration compressor for a freezer according to claim 2, characterized in that: After the limiting block (15) is positioned above the connecting ring (6), the annular protrusion (10) is inserted into the annular groove (11), and the connecting ring (6) is pressed against the upper outer surface of the rubber ring (9).
4. A high-efficiency refrigeration compressor for a freezer according to claim 3, characterized in that: The mounting holes (12) are opened on the left and right sides of the inner wall of the mounting ring (7), and the helical spring (13) and the movable pin (14) are both located in the mounting holes (12).
5. A high-efficiency refrigeration compressor for a freezer according to claim 4, characterized in that: The helical spring (13) is fixed between one end of the mounting hole (12) and the outer surface of one end of the movable pin (14).
6. A high-efficiency refrigeration compressor for a freezer according to claim 5, characterized in that: The outer wall of the movable pin (14) and the limiting block (15) is slidably connected to the mounting hole (12), and one end of the outer surface of the movable pin (14) is elastically connected to one end of the mounting hole (12) through a helical spring (13).