Compressor lower shell assembly and compressor having same

Abstract

The utility model provides a kind of compressor lower shell assembly and the compressor with it, compressor lower shell assembly includes: lower shell body, lower shell body has chamber, the bottom of chamber has multiple mounting convex parts, mounting convex part is integrally formed structure with lower shell body;Multiple damping springs, set in chamber, damping spring is set one-to-one with mounting convex part, one end of damping spring is set on mounting convex part, the other end of damping spring is used for with movement core abut, to movement core damping;Limiting structure, set on lower shell body, limiting structure is used for fixed damping spring and the relative position of mounting convex part.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and more specifically, to a compressor lower housing assembly and a compressor having the same. Background Technology

[0002] Traditional reciprocating compressors connect the housing and the compressor body via vibration-damping springs. Specifically, the compressor housing contains a spring support, a vibration-damping spring, and a plastic sleeve. The spring support is welded to the bottom of the lower housing, the plastic sleeve is fitted onto the spring support, and the vibration-damping spring is fitted onto the plastic sleeve and abuts against the bottom of the compressor body. Because the spring support is welded to the lower housing and the plastic sleeve is simply fitted onto the spring support, in the application scenario of vehicle refrigerators, the compressor is constantly subjected to bumps and tilts. This can lead to a series of problems such as the plastic sleeve coming off the spring support, weld cracking, or the vibration-damping spring coming off the plastic sleeve. Therefore, designing a connection structure that ensures a stable connection between the structure and the housing while also maintaining a stable connection with the vibration-damping spring has become a pressing problem to be solved in the existing technology. Utility Model Content

[0003] This utility model provides a compressor lower housing assembly and a compressor having the same, to solve the problem of poor connection stability between the compressor housing and the damping spring in the prior art of vehicle compressors.

[0004] According to one aspect of this utility model, a compressor lower housing assembly is provided. The compressor lower housing assembly includes: a lower housing body having a chamber, the bottom of which has multiple mounting protrusions, the mounting protrusions being integrally formed with the lower housing body; multiple damping springs disposed within the chamber, the damping springs corresponding one-to-one with the mounting protrusions, one end of the damping spring being sleeved on the mounting protrusion, and the other end of the damping spring being used to abut against the motor core to dampen vibration of the motor core; and a limiting structure disposed on the lower housing body, the limiting structure being used to fix the relative positions of the damping springs and the mounting protrusions.

[0005] Furthermore, the limiting structure includes a limiting groove, which is located at the bottom of the chamber and surrounds the outside of the mounting protrusion, and the end of the damping spring is fixed in the limiting groove.

[0006] Furthermore, the mounting protrusion includes a limiting section and an extension section connected in sequence. The limiting section is connected to the lower shell body, and the outer wall of the limiting section is interference-fitted with the damping spring.

[0007] Furthermore, the outer diameter of the extension gradually decreases from the direction away from the limiting section.

[0008] Furthermore, the diameter of the spring wire of the damping spring is d, the width of the limiting groove is w, 0.08mm≤dw≤0.2mm; the depth of the limiting groove is h, h≥1.5d.

[0009] Furthermore, the height of the mounting protrusion is between 6mm and 10mm, and the outer diameter of the mounting protrusion is between 8mm and 18mm.

[0010] Furthermore, the diameter of the damping spring wire is d, and the height of the mounting protrusion is H, where H≥6d.

[0011] Furthermore, the mounting protrusion has a cylindrical or conical structure.

[0012] Furthermore, the mounting protrusion is formed by recessing into the cavity from the outer side wall of the bottom of the lower shell body.

[0013] According to another aspect of the present invention, a compressor is provided, the compressor including an upper shell, a core, and the aforementioned compressor lower shell assembly, the upper shell and the lower shell body of the compressor lower shell assembly cooperate to form a receiving cavity, the core is located in the receiving cavity, and the vibration damping spring of the compressor lower shell assembly abuts against the core.

[0014] By applying the technical solution of this utility model, multiple mounting protrusions are designed at the bottom of the chamber, and these mounting protrusions are manufactured integrally with the lower housing body using a molding process. Compared with traditional designs, this integrally molded structure significantly reduces the welding requirements between the mounting protrusions and the lower housing body, thereby avoiding weld breakage problems caused by uneven stress or process defects at the welding points. This enhances the overall strength and durability of the lower housing assembly, prevents the mounting protrusions from separating from the housing due to bumps and vibrations during long-term use of the vehicle compressor, and further improves the stability of the connection between the vibration damping spring and the lower housing body. Furthermore, this application further ensures the relative position of the vibration damping spring and the mounting protrusions is fixed by setting a limiting structure on the lower housing body. The design of the above structure allows the vibration damping spring to be stably connected between the lower housing body and the core, effectively improving the stability of the connection between the lower housing body and the vibration damping spring. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the compressor lower housing assembly provided by this utility model is shown;

[0017] Figure 2 A bottom view of the compressor lower housing assembly of this utility model is shown;

[0018] Figure 3 A cross-sectional view of the compressor lower housing assembly of this utility model is shown;

[0019] Figure 4 A cross-sectional view of the lower shell body of this utility model is shown;

[0020] Figure 5 It shows Figure 4 A magnified view of a section at point A in the middle;

[0021] Figure 6 This diagram illustrates a further embodiment of the present invention, showing a cylindrical mounting protrusion.

[0022] Figure 7 It shows Figure 6 A magnified view of a section at point B in the middle;

[0023] Figure 8 A schematic diagram of the compressor provided in another embodiment of the present invention is shown.

[0024] The above figures include the following reference numerals:

[0025] 10. Lower shell body;

[0026] 11. Chamber;

[0027] 20. Install the protrusion;

[0028] 21. Limiting segment;

[0029] 22. Extension section;

[0030] 30. Vibration damping springs;

[0031] 40. Limiting structure;

[0032] 50. Limiting groove;

[0033] 60. Fixing plate;

[0034] 70. Movement. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0036] like Figure 1 and Figure 2As shown, this embodiment of the invention provides a compressor lower housing assembly, which includes a lower housing body 10, multiple damping springs 30, and a limiting structure 40. The lower housing body 10 has a chamber 11, and the bottom of the chamber 11 has multiple mounting protrusions 20, which are integrally formed with the lower housing body 10. Specifically, the mounting protrusions 20 can be formed by stamping, stretching, casting, or other processes. Multiple damping springs 30 are disposed within the chamber 11, with each damping spring 30 corresponding to one of the mounting protrusions 20. One end of each damping spring 30 is sleeved on a mounting protrusion 20, and the other end of the damping spring 30 abuts against a movement 70 to dampen vibrations in the movement 70. The limiting structure 40 is disposed on the lower housing body 10 and is used to fix the relative positions of the damping springs 30 and the mounting protrusions 20.

[0037] By applying the technical solution of this utility model, multiple mounting protrusions 20 are designed at the bottom of the chamber 11, and these mounting protrusions 20 and the lower housing body 10 are manufactured using an integral molding process. Compared with the traditional design, this integral molding structure significantly reduces the welding requirements between the mounting protrusions 20 and the lower housing body 10, thereby avoiding the problem of weld breakage caused by uneven stress or process defects at the welding points, enhancing the overall strength and durability of the lower housing assembly, and preventing the mounting protrusions 20 from separating from the housing due to bumps and vibrations during long-term use of the vehicle compressor, further improving the stability of the connection between the damping spring 30 and the lower housing body 10. Furthermore, this application further ensures the relative position of the damping spring 30 and the mounting protrusions 20 is fixed by setting a limiting structure 40 on the lower housing body 10. The design of the above structure enables the damping spring 30 to be stably connected between the lower housing body 10 and the core 70, effectively improving the stability of the connection between the lower housing body 10 and the damping spring 30.

[0038] Specifically, at least three mounting protrusions 20 are provided to ensure that they collectively form a stable support plane, providing all-around mechanical support for the compressor core 70. Specifically, there can be three, four, or five protrusions. In this embodiment, four mounting protrusions 20 are provided, evenly distributed at the edges near the four corners of the lower housing body 10, forming a uniformly distributed support array. This design can evenly distribute the weight of the compressor core 70, providing uniform support when the vehicle bumps or tilts, preventing the core 70 from shifting or vibrating excessively, and significantly improving the operational stability and shock resistance of the vehicle refrigerator compressor.

[0039] In this embodiment, by designing the damping spring 30 to be sleeved on the outside of the mounting protrusion 20, the mounting protrusion 20 can provide radial constraint and support for the damping spring 30, so that the mounting protrusion 20 has stronger stability and load-bearing capacity when bearing the vibration energy transmitted by the movement 70.

[0040] The limiting structure 40 can be a limiting groove, a limiting protrusion, a snap-fit ​​structure, etc., as long as it can limit and fix the damping spring 30.

[0041] In this embodiment, the limiting structure 40 includes a limiting groove 50, which is disposed at the bottom of the chamber 11 and surrounds the outer side of the mounting protrusion 20. The end of the damping spring 30 is fixed within the limiting groove 50. By designing the limiting groove 50 at the bottom of the chamber 11 and surrounding the outer side of the mounting protrusion 20, this design of the limiting groove 50 can fix the end of the damping spring 30, limit the relative position between the damping spring 30 and the mounting protrusion 20, ensure a stable connection between the two, further prevent the lateral displacement of the damping spring 30 during the vibration of the compressor core 70, and further prevent the damping spring 30 from coming off the mounting protrusion 20.

[0042] Specifically, the mounting protrusion 20 includes a limiting section 21 and an extension section 22 connected in sequence. The limiting section 21 is connected to the lower shell body 10, and the outer wall of the limiting section 21 is interference-fitted with the damping spring 30.

[0043] By designing the mounting protrusion 20 into two sections, with its limiting section 21 tightly connected to the lower housing body 10 and its outer wall forming an interference fit with the damping spring 30, this design allows the damping spring 30 to be securely nested on the mounting protrusion 20. This effectively prevents axial or radial displacement of the spring under strong vibration or tilting conditions, ensuring the stable support effect of the damping spring 30. The design of its extension section 22 provides a guiding function for the installation of the damping spring 30, ensuring its alignment during installation and avoiding spring misalignment or uneven force distribution due to assembly deviations, thus maximizing the damping effect. Furthermore, the combination of the extension section 22 and the limiting section 21 effectively guides the energy dispersion path of the damping spring 30 under extreme vibration conditions, ensuring the stability of the spring and the smooth operation of the compressor. In this embodiment, the outer diameter of the limiting section 21 is larger than the outer diameter of the extension section 22, and both the limiting section 21 and the extension section 22 can be cylindrical or conical structures.

[0044] Specifically, the outer diameter of the extension section 22 gradually decreases from the direction away from the limiting section 21. Through the above design, the extension section 22 forms a tapered structure. This tapered design facilitates the operator in fitting the damping spring 30 onto the mounting protrusion 20 during assembly. It is especially convenient for operators when operating in confined spaces. Furthermore, since the damping spring 30 is not significantly obstructed by the edges when fitted, the assembly operation becomes smoother, which not only saves assembly time and improves production efficiency, but also reduces the spring deformation or damage that may be caused by forcibly fitting the damping spring 30, ensuring the integrity and effectiveness of the damping spring 30.

[0045] like Figure 3 As shown, the diameter of the spring wire of the damping spring 30 is d, and the width of the limiting groove 50 is w, 0.08mm≤dw≤0.2mm; specifically, the value of dw can be 0.08mm, 0.1mm, 0.15mm, or 0.2mm, etc. The depth of the limiting groove 50 is h, h≥1.5d. In this embodiment, the value of w1 ranges from 0.9 to 2.1mm, and the value of h1 ranges from ≥1.5mm.

[0046] In this embodiment, by setting the difference between the spring wire diameter d and the width of the limiting groove 50 within the aforementioned range, it avoids the situation where, when the difference is less than 0.08 mm, the limiting groove 50 provides insufficient constraint on the damping spring 30, causing the damping spring 30 to easily shift or dislodge during vibration, affecting the stability and performance of the compressor. Conversely, when the difference is greater than 0.2 mm, the limiting groove 50 restricts the damping spring 30 too tightly, potentially generating additional frictional resistance when the damping spring 30 is compressed or extended, affecting its normal operation and further causing localized damage or fatigue, thus reducing its service life. Therefore, the aforementioned value range achieves a balance, ensuring the stability of the damping spring 30 within the limiting groove 50 while avoiding unnecessary friction and stress. This allows the compressor to maintain good operating conditions under various road conditions, improving the reliability and efficiency of the vehicle refrigerator compressor while reducing maintenance costs.

[0047] Furthermore, the depth of the limiting groove 50 is h, where h ≥ 1.5d. This design provides sufficient embedding space for the damping spring 30, ensuring that its end can be securely locked within the groove when subjected to vibrations and impacts generated by the compressor operation. This prevents the damping spring 30 from undergoing axial or radial displacement due to vibration, or even from coming out, thereby significantly enhancing the stability of the damping spring 30 and the reliability of its damping effect.

[0048] The height of the mounting protrusion 20 is between 6mm and 10mm, specifically 6mm, 6.5mm, 7mm, 8mm, 9mm, 10mm, etc. The outer diameter of the mounting protrusion 20 is between 8mm and 18mm, specifically 8mm, 10mm, 12mm, 15mm, and 18mm.

[0049] By controlling the height of the mounting protrusion 20 within the aforementioned range, specifically, if the height of the mounting protrusion 20 is less than 6mm, then during compressor operation, especially when encountering severe vibration or tilting, the limiting effect of the mounting protrusion 20 on the damping spring 30 will be relatively weakened, failing to effectively suppress the large-amplitude swing of the damping spring 30, which may lead to the dislocation of the damping spring 30, affecting the smooth operation and performance stability of the compressor. Conversely, if the height of the mounting protrusion 20 exceeds 10mm, since the mounting protrusion 20 in this application is formed by stamping the lower shell body 10, an excessively high mounting protrusion 20 will reduce the wall thickness of the mounting protrusion 20, thereby reducing the rigidity and strength of the mounting protrusion 20, making the mounting protrusion 20 more prone to deformation or damage under the same operating conditions, affecting the life and safety of the compressor.

[0050] Furthermore, by setting the outer diameter of the mounting protrusion 20 within the aforementioned range, specifically, if the outer diameter of the mounting protrusion 20 is less than 8mm, the damping spring will swing or dislocate due to insufficient support from the mounting protrusion 20 under severe vibration conditions, directly affecting the stability and lifespan of the compressor. If the outer diameter of the mounting protrusion 20 is greater than 10mm, the excessively thin sidewall of the mounting protrusion 20 will weaken its support for the damping spring 30.

[0051] like Figure 4 As shown, the diameter of the spring wire of the damping spring 30 is d, and the height of the mounting protrusion 20 is H, where H ≥ 6d. By setting the height of the mounting protrusion 20 to at least six times the diameter of the spring wire of the damping spring 30, sufficient space constraint and stable support can be provided for the damping spring 30 during compressor operation, reducing the risk of the damping spring 30 dislodging under high-intensity vibration conditions and improving the reliability of the damping system.

[0052] like Figures 5 to 7 As shown, the mounting protrusion 20 can be configured as a cylindrical or conical structure. When the mounting protrusion 20 is entirely cylindrical, the damping spring 30 can be press-fitted with the mounting protrusion 20, further increasing the connection stability between the damping spring 30 and the mounting protrusion 20. When the mounting protrusion 20 is conical, it facilitates the operator in fitting the damping spring 30 onto the mounting protrusion 20, effectively reducing assembly difficulty. In this embodiment, the mounting protrusion is conical, with the diameter of the cone top ranging from 10mm to 18mm; the height of the conical mounting protrusion 20 ranges from 6mm to 10mm; and the taper of the cone ranges from 30° to 120°.

[0053] Specifically, the mounting protrusion 20 is formed by recessing into the cavity 11 from the outer side wall of the bottom of the lower shell body 10. In this application, the mounting protrusion 20 is a stamped design. By directly stamping the mounting protrusion 20 onto the lower shell body 10, structural integration is achieved, reducing the installation and welding processes of the connecting damping spring 30 components. This reduces production costs and avoids weld breakage problems between the mounting protrusion 20 and the lower shell body 10, further improving the stability of the connection between the damping spring 30 and the lower shell body 10.

[0054] It should also be noted that, in this embodiment, the lower shell body 10 is made of cold-rolled low-carbon steel sheet with high stamping properties, and a thickness of 2.0mm to 3.2mm. The steel sheet grade adopts national standard DC04 to DC06. This material has good stamping properties and high strength, making it suitable for manufacturing complex structural parts. Furthermore, a fixing plate 60 is connected to the lower end of the lower shell body 10. The fixing plate 60 is fixed to both sides of the shell by welding to enhance the overall rigidity and stability of the shell assembly.

[0055] like Figure 8 As shown, in other embodiments of this application, a compressor is also provided, which includes an upper shell, a core 70 and the aforementioned lower shell assembly. The upper shell and the lower shell body 10 of the compressor lower shell assembly cooperate to form a receiving cavity. The core 70 is located in the receiving cavity, and the damping spring 30 of the compressor lower shell assembly abuts against the core 70.

[0056] The technical solution provided in this application has the following advantages:

[0057] 1. By stamping and installing protrusions on the lower housing assembly of the compressor, the process structure is simplified, and the welding process of the compression spring support in the prior art is reduced.

[0058] 2. This application eliminates the need for separate design of the compression spring support and plastic sleeve, reducing the number of parts and lowering the compressor's weight and cost.

[0059] 3. The height of the mounting protrusion in this application can limit the swing amplitude of the damping spring, and the limiting groove clamps the damping spring, thus improving the stability of the damping spring through a dual action.

[0060] 4. The housing structure of this application avoids the risk of the vibration damping spring of the vehicle refrigerator compressor falling off, thus improving the reliability of the vehicle refrigerator compressor.

[0061] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification.

[0063] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0064] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0065] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0066] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0067] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

Claims

1. A compressor lower housing assembly, characterized in that, The compressor lower housing assembly includes: The lower shell body (10) has a cavity (11), and the bottom of the cavity (11) has a plurality of mounting protrusions (20), which are integrally formed with the lower shell body (10). Multiple damping springs (30) are disposed in the cavity (11). The damping springs (30) are disposed one-to-one with the mounting protrusions (20). One end of the damping spring (30) is sleeved on the mounting protrusion (20), and the other end of the damping spring (30) is used to abut against the movement (70) to dampen the movement (70). A limiting structure (40) is provided on the lower shell body (10), and the limiting structure (40) is used to fix the relative position of the damping spring (30) and the mounting protrusion (20).

2. The compressor lower housing assembly according to claim 1, characterized in that, The limiting structure (40) includes a limiting groove (50), which is located at the bottom of the chamber (11) and surrounds the outside of the mounting protrusion (20). The end of the damping spring (30) is fixed inside the limiting groove (50).

3. The compressor lower housing assembly according to claim 1 or 2, characterized in that, The mounting protrusion (20) includes a limiting section (21) and an extension section (22) connected in sequence. The limiting section (21) is connected to the lower shell body (10), and the outer side wall of the limiting section (21) is interference-fitted with the damping spring (30).

4. The compressor lower housing assembly according to claim 3, characterized in that, The outer diameter of the extension segment (22) gradually decreases in the direction away from the limiting segment (21).

5. The compressor lower housing assembly according to claim 2, characterized in that, The diameter of the spring wire of the damping spring (30) is d, the width of the limiting groove (50) is w, 0.08mm≤dw≤0.2mm; the depth of the limiting groove (50) is h, h≥1.5d.

6. The compressor lower housing assembly according to claim 1, characterized in that, The height of the mounting protrusion (20) is between 6 mm and 10 mm, and the outer diameter of the mounting protrusion (20) is between 8 mm and 18 mm.

7. The compressor lower housing assembly according to claim 1, characterized in that, The diameter of the spring wire of the damping spring (30) is d, and the height of the mounting protrusion (20) is H, where H≥6d.

8. The compressor lower housing assembly according to claim 1, characterized in that, The mounting protrusion (20) is a cylindrical or conical structure.

9. The compressor lower housing assembly according to claim 1, characterized in that, The mounting protrusion (20) is formed by recessing the outer side wall of the bottom of the lower shell body (10) into the cavity (11).

10. A compressor, characterized in that, The compressor includes an upper housing, a core (70), and a lower housing assembly of the compressor according to any one of claims 1 to 9. The upper housing and the lower housing body (10) of the lower housing assembly of the compressor cooperate to form a receiving cavity. The core (70) is located in the receiving cavity, and the damping spring (30) of the lower housing assembly of the compressor abuts against the core (70).

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