Rubber mat for mounting refrigerant pipe

Abstract

The utility model relates to the technical field of automobile parts, in particular to a rubber mat for installing a refrigerant pipe, which comprises a rubber layer and a framework layer, a plurality of through holes for the refrigerant pipe to pass through are arranged in the middle of the rubber layer, the framework layer is partially arranged in the rubber layer and partially protrudes out of the rubber layer, and the rubber layer is arranged in the framework layer. And the rubber layer is clamped with the framework layer. According to the utility model, not only can the lap joint force with the automobile sheet metal part be ensured, but also the requirement of the refrigerant pipe on hardness can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and more particularly to a rubber pad for installing a refrigerant pipe. Background Art

[0002] Cooling is a crucial component in the automotive industry, and maintaining the temperature of power batteries is a core goal of cooling technology. Currently, power battery cooling technologies are primarily categorized into three methods: air cooling, liquid cooling, and direct refrigerant cooling. Direct refrigerant cooling uses refrigerant as the heat exchange medium. It offers advantages such as ease of use, easy maintenance, high cooling efficiency, and low cost. Direct refrigerant cooling is widely used in hybrid electric vehicles (HEVs). However, this high-efficiency cooling method also requires complex processes and structures. Specifically, the air conditioning duct layout for direct refrigerant cooling is particularly complex. The duct runs from the condenser in the front cabin, passes through the underbody, and then connects to the power battery. The direct refrigerant cooling duct is an aluminum tube, and the existing rubber pad is made of rubber. The duct passes through the center of the rubber pad and overlaps the body floor sheet metal. The rubber pad is integrally molded. If the rubber pad is soft, the overlap strength between the rubber pad and the vehicle sheet metal is weak, making the overall structure prone to sagging and detachment. If the rubber pad is hard, the refrigerant duct's mobility through the pad is reduced, making it difficult to precisely align the duct with the power battery, thus increasing assembly difficulties. Utility Model Content

[0003] The purpose of the present utility model is to overcome the deficiency of the prior art rubber pads in balancing the overlapping force with automobile sheet metal parts and the hardness requirements of refrigerant pipes, and to provide a rubber pad for refrigerant pipe installation that can both ensure the overlapping force with automobile sheet metal parts and meet the hardness requirements of refrigerant pipes.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A rubber pad for installing a refrigerant pipe is provided, comprising a rubber layer and a skeleton layer. The middle portion of the rubber layer is provided with a plurality of through holes for passing the refrigerant pipe. The skeleton layer is partially installed inside the rubber layer and partially protrudes from the rubber layer. The rubber layer is clamped to the skeleton layer.

[0006] The skeleton layer of the utility model has a certain hardness, thereby ensuring the overlap force between the rubber pad and the automobile sheet metal. The hardness of the rubber layer is not as high as that of the skeleton layer, which facilitates the refrigerant pipe to pass through the through hole in the middle of the rubber layer. The rubber layer ensures the assembly of the refrigerant pipe.

[0007] Furthermore, a first boss is provided on the outer side of the skeleton layer, and a first groove is provided on the inner side of the rubber layer, wherein the first boss is engaged with the first groove, thereby ensuring a stable connection between the skeleton layer and the rubber layer.

[0008] Furthermore, the first boss is an L-shaped structure. The L-shaped first boss can increase the stability of the structure and optimize the layout, making the structure of the skeleton layer and the rubber layer more compact.

[0009] Furthermore, a plurality of second bosses are provided on the outer side of the skeleton layer, and the second bosses are engaged with the automobile sheet metal parts. The skeleton layer is engaged with the automobile sheet metal parts via the second bosses, and no additional fasteners are required, thereby simplifying the assembly process.

[0010] Furthermore, the lower end surface of the second boss is a first inclined surface. The first inclined surface serves as a guide surface, making it easier for the frame layer to slide into the mounting position of the automobile sheet metal during assembly, reducing the force required during assembly, allowing workers to easily align and insert the frame layer into the predetermined position, thereby reducing labor intensity and time consumption during the assembly process.

[0011] Furthermore, the plurality of second bosses are grouped into two, and the two second bosses in the group are arranged opposite to each other. The oppositely arranged second bosses can disperse the force, reduce stress concentration, and improve the strength of the connection between the utility model and the automobile sheet metal part.

[0012] Furthermore, the frame layer has an even number of strip grooves formed on its side, with two strip grooves forming a group. Within each group, the two strip grooves are positioned opposite each other, and the lower ends of the second bosses are connected to the strip grooves. The second bosses are connected to the strip grooves only at their lower ends, allowing them to deform under load during installation, thereby enabling compatibility with automotive sheet metal parts of varying sizes.

[0013] Furthermore, a mounting portion is provided at the lower end of the rubber layer, through which the rubber layer abuts against the automotive sheet metal component. A second inclined surface extending from the inside to the outside is provided on the inner side of the mounting portion. During assembly, the mounting portion deforms and its inner side abuts against the automotive sheet metal component, resulting in a tighter connection and improved sealing.

[0014] Furthermore, a limiting portion is provided along the circumferential direction at the top of the through hole to limit the position of the refrigerant pipe, thereby ensuring that the refrigerant pipe remains stable and preventing displacement or damage of the refrigerant pipe due to vibration or external force during vehicle driving, thereby reducing the risk of refrigerant leakage.

[0015] Furthermore, there are at least two through holes. Two or more through holes can provide more installation options, making the layout of the refrigerant pipe more flexible.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The skeleton layer of the present invention has a certain hardness, thereby ensuring the lap strength between the rubber pad and the automobile sheet metal. The hardness of the rubber layer is not as high as that of the skeleton layer, which facilitates the passage of the refrigerant pipe through the through hole in the middle of the rubber layer. The rubber layer ensures the assembly of the refrigerant pipe;

[0018] 2. The skeleton layer is connected to the automobile sheet metal through the second boss, without the need for additional fasteners, thus simplifying the assembly process;

[0019] 3. During assembly, the mounting portion of the rubber layer is deformed and its inner side abuts against the automobile sheet metal, making the connection tighter and the sealing better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram from a first perspective of a rubber pad for installing a refrigerant pipe according to the present invention;

[0021] Figure 2 This is a second perspective structural diagram of a rubber pad for installing a refrigerant pipe in the utility model

[0022] Figure 3 This is an AA cross-sectional view of a rubber pad for installing a refrigerant pipe according to the present invention;

[0023] Figure 4 This is a structural diagram of the skeleton layer of the utility model.

[0024] In the accompanying drawings: 100, rubber layer; 110, through hole; 111, limiting portion; 120, first groove; 130, mounting portion; 200, skeleton layer; 210, first boss; 220, second boss; 230, strip groove. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0026] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] Example 1

[0028] Figures 1 to 3 The embodiment shown is a first embodiment of a rubber pad for installing a refrigerant pipe. The present invention includes a rubber layer 100 and a skeleton layer 200. The rubber layer 100 has a plurality of through-holes 110 in the middle for passing the refrigerant pipe. The skeleton layer 200 is partially installed inside the rubber layer 100 and partially protrudes from the rubber layer 100. The rubber layer 100 and the skeleton layer 200 are snap-fitted together. The skeleton layer 200 of the present invention has a certain hardness, thereby ensuring the overlap force between the rubber pad and the automotive sheet metal, limiting the deformation of the rubber layer 100, and enabling the present invention to withstand greater pressure and load. The hardness of the rubber layer 100 is not as high as that of the skeleton layer 200, which facilitates the passage of the refrigerant pipe through the through-holes 110 in the middle of the rubber layer 100. The flexibility of the rubber layer 100 ensures the assembly of the refrigerant pipe. The skeleton layer 200 snaps into the rubber layer 100, enabling a quick connection without the need for additional tools, simplifying the assembly and disassembly process. The skeleton layer 200 of the present invention is snap-fitted to the rubber layer 100, but is not limited to snap-fitting. Adhesive can also be used as a connecting medium to bond the skeleton layer 200 and the rubber layer 100 together. However, once cured, it is difficult to disassemble and reuse. The choice needs to be made based on specific needs and environmental conditions.

[0029] In the present invention, a first boss 210 is provided on the outer side of the skeleton layer 200, and a first groove 120 is provided on the inner side of the rubber layer 100. The first boss 210 is engaged with the first groove 120. The engagement of the first boss 210 with the first groove 120 effectively limits the relative displacement of the rubber layer 100 and the skeleton layer 200, ensuring a stable connection between the skeleton layer 200 and the rubber layer 100. The lateral pressure on the first groove 120 and the first boss 210 can be buffered by the rubber layer 100, reducing the restraining force caused by temperature and shrinkage, and reducing stress concentration in the structure. At the same time, the engagement of the first boss 210 with the first groove 120 allows a certain degree of deformation to adapt to dimensional changes caused by temperature changes and other environmental factors, reducing the resulting internal stress. In addition, the engagement of the first boss 210 with the first groove 120 enables quick connection and simplifies the assembly and disassembly process. In this embodiment, the first boss 210 is disposed at the bottom end of the skeleton layer 200 and is circumferentially disposed around the skeleton layer 200 , while the first groove 120 is circumferentially disposed around the inner side of the rubber layer 100 .

[0030] The first boss 210 of the present invention is an L-shaped structure. The L-shaped first boss 210 can increase the stability of the structure and optimize the layout, making the structure of the skeleton layer 200 and the rubber layer 100 more compact.

[0031] The skeleton layer 200 of the present invention is provided with a plurality of second bosses 220 on the outside, which snap into place with the automotive sheet metal. The skeleton layer 200 snaps into place with the automotive sheet metal via the second bosses 220, making the connection between the present invention and the automotive sheet metal more stable and secure. Furthermore, this snap-fit ​​connection eliminates the need for additional fasteners such as bolts and nuts, eliminating the risk of loosening or damage that can occur with bolts and nuts, thereby enhancing the overall structural strength and durability of the vehicle. By eliminating the use of fasteners, work on the assembly line becomes simpler and more efficient. Workers no longer need to spend extra time and effort installing and adjusting fasteners, which not only speeds up production but also reduces assembly errors caused by improper operation. Furthermore, snap-fitting helps reduce the weight of the vehicle. By eliminating metal fasteners, the overall weight of the vehicle is reduced, which not only helps improve fuel efficiency but also reduces environmental impact. This simplifies the assembly process and improves production efficiency. In this embodiment, the number of the second bosses 220 is selected as two based on comprehensive considerations of structural stability, cost-effectiveness and functionality, but is not limited thereto. The number can be selected based on demand and cost to meet different performance, cost and aesthetic requirements.

[0032] The lower end surface of the second boss 220 of the present invention is a first inclined surface. During installation, the frame layer 200 faces downward, and workers align it with the automotive sheet metal component, installing it from top to bottom. The first inclined surface serves as a guide, optimizing the assembly process between the present invention and the automotive sheet metal component. The first inclined surface makes it easier for the frame layer 200 to slide into the mounting position during assembly, reducing the force required and allowing workers to easily align and insert the frame layer 200 into the desired position, thereby reducing labor intensity and time during assembly. The first inclined surface also helps improve assembly accuracy. Because the first inclined surface provides a clear directional guide, the frame layer 200 is less likely to shift or misalign during assembly, ensuring precise alignment between the frame layer 200 and the sheet metal component. This precise alignment is crucial to ensuring the integrity and safety of the automotive structure. The guiding effect of the first inclined surface also helps reduce potential damage during assembly. Without the first inclined surface, the frame layer 200 may scratch or deform the sheet metal component during forced assembly.

[0033] The second bosses 220 of the present invention are arranged in groups of two, with the two second bosses 220 within the group being arranged opposite each other. The oppositely arranged second bosses 220 can disperse stress, reduce local stress concentration, avoid material fatigue and damage caused by stress concentration, and improve the strength of the connection between the present invention and the automotive sheet metal parts, thereby enhancing the safety performance of the vehicle. The oppositely arranged second bosses 220 increase the surface area in contact with the sheet metal parts, thereby increasing the connection strength between the skeleton layer 200 and the sheet metal parts. This design can better withstand forces from different directions and enhance the stability of the overall structure. During driving, the vehicle is subject to various complex loads, and the oppositely arranged second bosses 220 can better adapt to these changes, provide stable support, and ensure the vehicle's performance under different operating conditions.

[0034] The top of the through hole 110 of the present invention is provided with a limiting portion 111 along the circumferential direction. The limiting portion 111 provides a limit for the refrigerant pipe, ensuring that the refrigerant pipe remains stable and preventing the refrigerant pipe from being displaced or damaged due to vibration or external force during vehicle driving, thereby reducing the risk of refrigerant leakage and ensuring the sealing and safety of the system; the limiting portion 111 helps to improve the connection strength between the refrigerant pipe and the automobile sheet metal, preventing the refrigerant pipe from being subjected to excessive stress at specific points, and reducing the risk of fatigue or rupture of the refrigerant pipe due to stress concentration; the refrigerant pipe may expand and contract under temperature changes, and the limiting portion 111 of the rubber layer 100 can adapt to such changes and prevent the pipe from being deformed or damaged due to temperature differences.

[0035] The utility model has at least two through holes 110. Two or more through holes 110 can provide more installation options, making the layout of the refrigerant pipe more flexible; when the refrigerant pipe needs to be repaired or replaced, the additional through holes 110 can be used as spare connection points; different vehicles may require different connection methods, and providing multiple through holes 110 can meet these different connection requirements and improve the compatibility of the system; with the development of technology and changes in demand, the air-conditioning system may need to be expanded or upgraded. Multiple through holes 110 provide convenience for the future expansion of the system without replacing the entire piping system. In this embodiment, the number of through holes 110 is selected as two, but it is not limited to this. It can be selected according to actual needs to meet different performance, cost and aesthetic requirements.

[0036] The working principle of the rubber pad for installing a refrigerant pipe in this embodiment is as follows: the skeleton layer 200 and the rubber layer 100 are clamped together through the first groove 120 and the first boss 210 to ensure a tight connection. The utility model is clamped to the automobile sheet metal through the second boss 220. The refrigerant pipe passes through the through hole 110 in the middle of the rubber layer 100. The limiting part provides a limit for the refrigerant pipe to prevent displacement and leakage.

[0037] Example 2

[0038] Figure 4 The embodiment shown is a second embodiment of a rubber pad for installing a refrigerant pipe. This embodiment is similar to the first embodiment, except that an even number of strip grooves 230 are provided on the side of the skeleton layer 200 of this embodiment. Two strip grooves 230 form a group, and the two strip grooves 230 in the group are arranged opposite each other. The lower end of the second boss 220 is connected to the strip groove 230. Only the lower end of the second boss 220 is connected to the strip groove 230. During installation, the second boss 220 abuts against the sheet metal and deforms. After installation, the upper end of the second boss 220 naturally fits with the automobile sheet metal, making it compatible with automobile sheet metal parts of different sizes. Manufacturers can reduce the number of parts of different specifications in inventory, simplifying inventory management and logistics costs. This embodiment selects two strip grooves 230 based on a comprehensive consideration of structural stability, cost-effectiveness and functionality, but is not limited to this. It can be selected according to actual needs to meet different performance, cost and aesthetic requirements.

[0039] Example 3

[0040] Figure 3 The third embodiment of a rubber gasket for refrigerant pipe installation is shown. This embodiment is similar to the first embodiment, except that a mounting portion 130 is provided at the lower end of the rubber layer 100 of this embodiment. The rubber layer 100 abuts against the automobile sheet metal through the mounting portion 130. The inner side of the mounting portion 130 is provided with a second inclined surface extending from the inside to the outside, and the outer side of the mounting portion 130 is provided with a third inclined surface extending from the inside to the outside. During assembly, the mounting portion 130 deforms and its inner side abuts against the automobile sheet metal, making the connection tighter and more sealed. The abutment of the rubber layer 100 against the sheet metal through the mounting portion 130 reduces displacement caused by vibration or temperature changes, thereby enhancing the reliability of the connection. The design of the inner tilt and gradually decreasing circumference of the mounting portion 130 enables it to adapt to automobile sheet metals of different thicknesses and sizes, improving the versatility and flexibility of the present invention.

[0041] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A rubber pad for installing a refrigerant pipe, characterized in that: The invention comprises a rubber layer (100) and a skeleton layer (200), wherein a plurality of through holes (110) for passing a refrigerant pipe are provided in the middle of the rubber layer (100), the skeleton layer (200) is partially installed inside the rubber layer (100) and partially protrudes from the rubber layer (100), and the rubber layer (100) and the skeleton layer (200) are snap-connected.

2. The rubber pad for installing a refrigerant pipe according to claim 1, characterized in that: A first boss (210) is provided on the outer side of the skeleton layer (200), a first groove (120) is provided on the inner side of the rubber layer (100), and the first boss (210) is engaged with the first groove (120).

3. The rubber pad for installing a refrigerant pipe according to claim 2, characterized in that: The first boss (210) is an L-shaped structure.

4. The rubber pad for installing a refrigerant pipe according to claim 1, characterized in that: A plurality of second bosses (220) are provided on the outer side of the skeleton layer (200), and the second bosses (220) are clamped with the automobile sheet metal parts.

5. The rubber pad for installing a refrigerant pipe according to claim 4, characterized in that: The lower end surface of the second boss (220) is a first inclined surface.

6. The rubber pad for installing a refrigerant pipe according to claim 4, characterized in that: A plurality of second bosses (220) are grouped into two, and the two second bosses (220) in the group are arranged opposite to each other.

7. The rubber pad for installing a refrigerant pipe according to any one of claims 4 to 6, characterized in that: An even number of strip grooves (230) are provided on the side of the skeleton layer (200), two of the strip grooves (230) form a group, the two strip grooves (230) in the group are arranged opposite to each other, and the lower end of the second boss (220) is connected to the strip groove (230).

8. The rubber pad for installing a refrigerant pipe according to claim 1, characterized in that: The lower end of the rubber layer (100) is provided with a mounting portion (130), the rubber layer (100) is in contact with the automobile sheet metal part through the mounting portion (130), and the inner side of the mounting portion (130) is provided with a second inclined surface extending from the inside to the outside.

9. The rubber pad for installing a refrigerant pipe according to claim 1, characterized in that: A limiting portion (111) is provided at the top of the through hole (110) along the circumferential direction.

10. The rubber pad for installing a refrigerant pipe according to claim 1, characterized in that: There are at least two through holes (110).

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