Refrigeration appliance with reinforced backing plate extending into foaming zone
By setting a reinforcing liner between the outer wall of the insulation layer and the foam layer of the vehicle refrigerator, the material fatigue problem in high-stress areas is solved, achieving a balance between strength and lightweight, and improving the stability and service life of the vehicle refrigerator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NINGBO TING WEI ELECTRIC TECH
- Filing Date
- 2021-09-27
- Publication Date
- 2026-06-26
AI Technical Summary
Vehicle refrigerators are prone to material fatigue damage in high-stress areas such as where the refrigeration compressor or handle is installed, leading to performance degradation. Furthermore, traditional designs cannot simultaneously meet the requirements for strength and lightweighting.
A reinforcing liner is installed between the outer wall of the insulation layer and the foam layer. The reinforcing liner is fixedly connected to the outer wall of the insulation layer at both ends and extends into the foam layer to form a reinforced structure, thereby enhancing the strength of the outer wall of the insulation layer without increasing weight or taking up space.
It improves the stability and overall strength of the vehicle refrigerator in high-stress areas, extends its service life, and maintains its lightweight and insulation performance without being affected.
Smart Images
Figure CN115875888B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a refrigeration device with a reinforced liner extending into the foamed area, particularly a vehicle refrigerator. Background Technology
[0002] With the increasing popularity of private cars, travel has become more convenient, but travel time has also increased significantly. This has prompted people to pay more attention to the quality of their journeys, leading to a closer integration of automobiles with new technologies and products. Car refrigerators greatly improve the quality of travel. When traveling, car refrigerators can effectively preserve food, achieving a seamless connection from home to destination, allowing people to enjoy a higher quality of life. Car refrigerators are refrigeration and cooling devices that can be carried in a vehicle, often used in scenarios such as road trips and camping. Common refrigeration modes are divided into semiconductor refrigeration and compressor refrigeration, with compressor refrigerators having higher refrigeration efficiency and wider application. Compared with traditional refrigerators, car refrigerators need to withstand the impact of vehicle vibrations, requiring higher strength, which traditional refrigerator technology cannot meet. In addition, car refrigerators need to be frequently moved and are limited by the space inside the vehicle, requiring specific requirements in terms of size and weight design. Therefore, the material used to manufacture the shell of the car refrigerator cannot be too thick or heavy. However, if the shell material is not thick enough, material fatigue damage can easily occur in high-stress areas, such as the area where the refrigeration compressor is installed or handles, affecting the performance and use of the car refrigerator. Summary of the Invention
[0003] To address the shortcomings of the prior art, the present invention proposes the following technical solution:
[0004] Embodiment 1. A refrigeration device includes an inner wall of an insulation layer, an outer wall of an insulation layer, and a foamed layer disposed between the inner wall of the insulation layer and the outer wall of the insulation layer, characterized in that it further includes a reinforcing liner fixedly connected to the outer wall of the insulation layer, the reinforcing liner being fixedly connected to the outer wall of the insulation layer at both ends, and the middle portion of the reinforcing liner extending into the foamed layer; optionally, the reinforcing liner is not connected to the inner wall of the insulation layer. Due to the size and weight requirements of vehicle-mounted refrigerators, the material used to manufacture the shell of the vehicle-mounted refrigerator cannot be too thick or heavy. However, if the shell material is not thick enough, material fatigue is prone to occur in high-stress areas, especially in areas where the refrigeration compressor is installed or in areas such as handles, leading to a decrease in the quality of the vehicle-mounted refrigerator. The reinforcing liner is fixedly connected to the outer wall of the insulation layer and extends into the foamed layer, so that a fixed connection is formed between the foamed layer and the outer wall of the insulation layer, thereby reinforcing the outer wall. It is equivalent to introducing the strength of the insulation layer to the outer wall, further increasing the adhesion between the outer wall and the insulation layer, making it less prone to detachment. The reinforcing liner is only connected to the outer wall of the insulation layer, not the inner wall. This structural design facilitates installation, and there is no additional installation cost between the outer and inner layers. At the same time, the presence of the reinforcing liner does not significantly reduce the insulation effect of the insulation layer.
[0005] Implementation Method 2. The refrigeration equipment according to Implementation Method 1, characterized in that the outer wall of the insulation layer has a high-stress region, and the reinforcing liner is connected to the high-stress region.
[0006] Implementation Method 3. The refrigeration equipment according to Implementation Method 2, wherein the high-stress area is the area connecting the compressor bracket and / or the handle area.
[0007] Implementation Method 4. The refrigeration equipment according to Implementation Method 3, characterized in that the high-stress area is the area connecting the compressor bracket, and both ends of the reinforcing liner are connected to the frame of the outer wall of the insulation layer and the compressor bracket, thereby fixing the reinforcing liner to the outer wall of the insulation layer at both ends. This design allows the installation of the reinforcing liner without requiring new modifications to the frame structure; instead, it passes through the outer wall of the insulation layer and connects to the compressor bracket. The stress of the compressor bracket is directly transferred to the insulation layer and the frame of the outer wall of the insulation layer, making the entire refrigeration equipment more resistant to stress and more robust.
[0008] Embodiment 5. The refrigeration equipment according to Embodiment 1 is characterized in that a through hole is provided in the middle of the reinforcing liner to reduce the weight of the reinforcing liner, and optionally, the area of the through hole accounts for 1 / 6 to 2 / 3 of the area of the reinforcing liner.
[0009] Embodiment 6. The refrigeration equipment according to Embodiment 1, characterized in that at least 2 / 3 of the reinforcing liner extends into the middle 1 / 3 region of the insulation layer, and the main portion of the reinforcing liner extends along a direction parallel to the outer wall of the insulation layer.
[0010] Implementation Method 7. The refrigeration equipment according to Implementation Method 1, characterized in that a reinforcing rib is provided in the middle of the reinforcing liner on the side near the outer wall of the insulation layer.
[0011] Implementation method 8. The refrigeration device according to implementation method 1, wherein the refrigeration device is a vehicle refrigerator.
[0012] The technical advantages of this invention are as follows: By fixing the reinforcing liner to the outer wall of the insulation layer and extending into the foam layer, a stable connection is formed between the foam layer and the outer wall of the insulation layer, thereby reinforcing the outer wall. This effectively transfers the strength of the insulation layer to the outer wall, further increasing the adhesion between the outer wall and the insulation layer, ensuring that the outer wall of the insulation layer does not deform. If the outer wall of the insulation layer is a high-stress area connecting compressor brackets, handles, etc., it ensures a durable and stable connection, preventing damage. This improves the overall strength of the refrigeration equipment without significantly increasing its weight or affecting its storage space. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.
[0014] Figure 1 It is a three-dimensional view of a refrigeration device with reinforced lining.
[0015] Figure 2 It is a partial three-dimensional view of a refrigeration equipment with reinforced lining.
[0016] Figure 3 This is a partial front view of a refrigeration unit with reinforced lining.
[0017] Figure 4 This is a cross-sectional view of a refrigeration unit with reinforced lining.
[0018] Figure 5 This is a schematic diagram showing the reinforcing liner being fixedly connected to the outer wall of the insulation layer.
[0019] Figure 6 This is a cross-sectional view of a refrigeration device with reinforcing ribs on the reinforcing liner.
[0020] Figure 7 It is a 3D diagram of a refrigeration device with two handles.
[0021] Figure 8 This is a cross-sectional view showing a reinforcing liner installed at the handle.
[0022] Figure 9 This is a partial schematic diagram showing that the handle has a reinforcing liner.
[0023] Reference numerals: 100-Inner wall of insulation layer, 200-Outer wall of insulation layer, 300-Reinforcing liner, 310-Through hole, 320-Reinforcing rib, 400-Compressor bracket, 410-Compressor, 500-Handle. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0025] The terms used in this application have the meanings commonly understood by those skilled in the art, or would otherwise be explicitly defined or stated to the contrary.
[0026] This application provides a refrigeration device, including an inner wall of an insulation layer, an outer wall of an insulation layer, and a foamed layer disposed between the inner wall of the insulation layer and the outer wall of the insulation layer. The device is characterized by further including a reinforcing liner fixedly connected to the outer wall of the insulation layer. The reinforcing liner is fixedly connected to the outer wall of the insulation layer at both ends, and its middle portion extends into the foamed layer. Optionally, the reinforcing liner is not connected to the inner wall of the insulation layer.
[0027] In this application, the inner wall and outer wall of the insulation layer are shells located on both sides of the insulation layer, and the insulation layer is formed by injecting expanding foam into the foam layer and then curing it. In this application, the terms "insulation layer," "foam layer," and "foamed area" have the same meaning when used to describe components of refrigeration equipment.
[0028] This application forms a reinforced structure by setting a reinforcing liner that is fixedly connected to the outer wall of the insulation layer and extends into the foam layer. Specifically, when the foam cures within the foam layer, the reinforcing liner is integrally embedded in the foam area and bonded and cured. Since the reinforcing liner is fixedly connected to the outer wall of the insulation layer at both ends, the stress of the outer wall of the insulation layer can be conducted to the interior of the insulation layer through the reinforcing liner, which is equivalent to introducing the strength of the insulation layer to the outer wall of the insulation layer, thereby generating a reinforcing effect on the outer wall of the insulation layer. In some preferred embodiments, the reinforcing liner is only connected to the outer wall of the insulation layer and not to the inner wall of the insulation layer. This structural design makes the installation of the reinforcing liner more convenient, as it only needs to be fixedly connected to the outer wall of the insulation layer on the outside. On the other hand, it can prevent heat from being conducted through the reinforcing liner, ensuring that the insulation effect is not affected.
[0029] In some embodiments, the outer wall of the insulation layer has high-stress areas, and the reinforcing liner is connected to these high-stress areas. The stress on the outer wall of the insulation layer of the refrigeration equipment is affected by its structure and usage; some areas have concentrated stress, making them high-stress areas prone to damage. Therefore, reinforcing liners are particularly necessary to improve their strength. The reinforcing liners can be installed at multiple points, and those skilled in the art can rationally select the locations and number of reinforcing liners based on the stress conditions experienced by the refrigeration equipment during use and operation. This arrangement ensures that the strength of vulnerable areas of the refrigeration equipment is improved without significantly increasing the overall weight of the refrigeration equipment or occupying its storage space.
[0030] In some embodiments, the high-stress area is the area connecting the compressor bracket and / or the handle area. As a key component of the refrigeration equipment, the compressor is typically connected to the outer wall of the insulation layer via a compressor bracket. Due to the compressor's weight and operational vibrations, the area connecting to the compressor bracket experiences high stress, making it prone to deformation, loosening, or even detachment. The handle, such as a grip for opening the refrigeration equipment or facilitating the handling and preparation of cold-chain components, is also a high-stress area. Using reinforced linings ensures the durability and reliability of these areas, extending the service life of the refrigeration equipment.
[0031] In some embodiments, the high-stress area is the area connecting the compressor bracket. The two ends of the reinforcing liner are connected to the frame of the outer wall of the insulation layer and the compressor bracket, thereby fixing the reinforcing liner to the outer wall of the insulation layer at both ends. In this application, the frame of the outer wall of the insulation layer is the part connecting the outer wall of the insulation layer to the compressor bracket. The two ends of the reinforcing liner are also connected to the other side of the frame connecting to the compressor bracket. Therefore, a connector passing through the outer wall of the insulation layer can be used to fix the reinforcing liner, the outer wall of the insulation layer, and the compressor bracket. This design, on the one hand, eliminates the need to modify the frame structure when installing the reinforcing liner; it only requires connecting the reinforcing liner to the existing connecting parts. On the other hand, it allows the stress of the compressor bracket to be directly transferred to the frame of the outer wall of the insulation layer and the interior of the insulation layer through the reinforcing liner, making the entire refrigeration equipment more resistant to stress and more robust.
[0032] In some embodiments, the reinforcing liner has a through-hole in its center to reduce its weight. Optionally, the area of the through-hole occupies 1 / 6 to 2 / 3 of the area of the reinforcing liner. The through-hole in the reinforcing liner reduces its weight while providing substantially the same reinforcement. This is because although the area is reduced, the total area "covered" by the liner within the insulation layer is still relatively large, achieving the required reinforcement while reducing product weight.
[0033] In some embodiments, at least two-thirds of the reinforcing liner extends into the middle third of the insulation layer, and the main portion of the reinforcing liner extends parallel to the outer wall of the insulation layer. Extending more of the reinforcing liner into the insulation layer while maintaining a certain distance from the outer wall allows for greater reinforcement. The middle third of the insulation layer refers to the area located in the middle third of the insulation layer's thickness direction. This distance between the reinforcing liner and the inner wall of the insulation layer prevents heat from being conducted through the reinforcing liner to the inner wall, thus ensuring the insulation performance is not affected.
[0034] In some embodiments, a reinforcing rib is provided in the middle of the reinforcing liner, near the outer wall of the insulation layer. The reinforcing rib is a protrusion extending onto the surface of the reinforcing liner, such as a columnar protrusion perpendicular to the surface of the reinforcing liner. The reinforcing rib can be embedded into the foam layer during the curing of the foam adhesive, providing further reinforcement. Even when the high-stress area is continuously subjected to force during operation of the refrigeration equipment under continuous vibration, it can still maintain extremely strong stability. The reinforcing rib is located near the outer wall of the insulation layer, maintaining a certain distance from the inner wall of the insulation layer, so neither the reinforcing rib nor the reinforcing liner will affect the insulation and refrigeration effect.
[0035] In some embodiments, the refrigeration device is a vehicle refrigerator. This application particularly relates to a vehicle refrigerator that uses a refrigeration compressor to achieve a refrigeration effect.
[0036] The scope described above can be used alone or in combination. The following examples will make this application easier to understand.
[0037] Example
[0038] Example 1
[0039] This embodiment provides a vehicle-mounted refrigerator with a reinforced liner. Figure 1 A perspective view of the refrigeration equipment with a reinforcing liner is shown, which includes an inner wall 100 of the insulation layer, an outer wall 200 of the insulation layer, and a foam layer disposed between the inner wall 100 and the outer wall 200 of the insulation layer. It also includes a reinforcing liner 300 fixedly connected to the outer wall 200 of the insulation layer. The reinforcing liner 300 is fixedly connected to the outer wall 200 of the insulation layer at both ends, and the middle portion of the reinforcing liner 300 extends into the foam layer. The reinforcing liner 300 is not connected to the inner wall 100 of the insulation layer.
[0040] The outer wall 200 of the insulation layer has a high-stress area, which is the area where the compressor bracket 400 is connected, and the compressor 410 is mounted on the compressor bracket 400. The reinforcing liner 300 is connected to the high-stress area.
[0041] Figure 2 A partial perspective view shows the reinforcing liner 300 connected to the high-stress region. Figure 3 A partial front view is shown of the reinforcing liner 300 being connected to the high-stress region. Figure 4 The figure shows a top view of the cross-section of the vehicle refrigerator where the reinforcing liner 300 is installed. As shown, the compressor bracket 400 is connected to the outer wall of the insulation layer 200 via a frame on the outer wall of the insulation layer. Both ends of the reinforcing liner 300 are also connected to the other side of the frame connecting the compressor bracket 400. The reinforcing liner 300 extends to the middle third of the insulation layer, with its main portion extending parallel to the direction of extension of the outer wall of the insulation layer. The reinforcing liner 300, the outer wall of the insulation layer 200, and the compressor bracket 400 are connected by connectors passing through the outer wall of the insulation layer 200. This design eliminates the need to modify the frame structure when installing the reinforcing liner, and allows the stress of the compressor bracket to be directly transferred to the frame of the outer wall of the insulation layer and the interior of the insulation layer through the reinforcing liner, making the entire refrigeration equipment more resistant to stress and more robust.
[0042] Figure 5A schematic diagram is shown showing the reinforcing liner fixedly connected to the outer wall of the insulation layer. The reinforcing liner 300 has several through holes 310 in its center, the area of which occupies half the area of the reinforcing liner, thereby reducing the weight of the liner.
[0043] The vehicle-mounted refrigerator has a reinforced structure formed by setting a reinforcing liner that is fixedly connected to the outer wall of the insulation layer and extends into the foam layer. This ensures that the outer wall of the insulation layer of the vehicle-mounted refrigerator does not deform or loosen in the high-stress area connected to the compressor bracket. This not only ensures that the strength of the vulnerable areas of the refrigeration equipment is improved, but also does not significantly increase the overall weight of the refrigeration equipment, nor does it occupy the storage space of the refrigeration equipment, thereby improving the insulation effect and extending the service life.
[0044] Example 2
[0045] This embodiment is largely the same as Embodiment 1, except that a reinforcing rib 320 is provided in the middle of the reinforcing liner 300 on the side near the outer wall 200 of the insulation layer. Figure 6 This shows a top view of the cross-section of the vehicle refrigerator at the location where the reinforcing liner 300 and reinforcing rib 320 are provided (compared to that in Embodiment 1). Figure 4 (For comparison). The reinforcing rib 320 protrudes from the side of the reinforcing liner 300, perpendicular to the middle portion, near the outer wall 200 of the insulation layer. When the foaming adhesive cures, the reinforcing liner 300, along with the reinforcing rib 320, is embedded in the foam layer. This allows the stress on the outer wall of the insulation layer to be transferred to the interior of the insulation layer through the reinforcing liner, further reinforcing it. Even when the high-stress area is continuously subjected to force during operation in a continuous vibration environment, the refrigeration equipment maintains extremely high stability. The reinforcing rib 320 is positioned near the outer wall 200 of the insulation layer, maintaining a certain distance from the inner wall of the insulation layer. Neither the reinforcing rib nor the reinforcing liner will affect the insulation and refrigeration effect.
[0046] Example 3
[0047] Reference Figures 7 to 9 This embodiment provides a vehicle refrigerator with a reinforcing liner at the handle. Figure 7 A perspective view of the refrigeration device with handles 500 located on both sides of the vehicle refrigerator is shown. Figure 8A cross-sectional schematic diagram of a vehicle refrigerator with the reinforcing liner installed at the handle 500. As shown in the figure, the vehicle refrigerator includes an inner wall 100 of the insulation layer, an outer wall 200 of the insulation layer, and a foam layer disposed between the inner wall 100 and the outer wall 200 of the insulation layer. It also includes a reinforcing liner 300 fixedly connected to the outer wall 200 of the insulation layer. The reinforcing liner 300 is fixedly connected to the outer wall 200 of the insulation layer at both ends, and the middle part of the reinforcing liner 300 extends into the foam layer. The reinforcing liner 300 is not connected to the inner wall 100 of the insulation layer.
[0048] The outer wall 200 of the insulation layer has a high-stress area, which is the area where the handle 500 is connected, and the reinforcing liner 300 is connected to the high-stress area.
[0049] Figure 9 This is a partial schematic diagram showing a reinforcing liner 300 installed at the handle 500. The handle 500 is connected to the outer wall of the insulation layer 200 via a frame on the outer wall of the insulation layer. The frame of the outer wall of the insulation layer refers to the part where the outer wall of the insulation layer 200 connects to the handle 500. Both ends of the reinforcing liner 300 are also connected to the other side of the frame connecting to the handle 500. Two-thirds of the reinforcing liner 300 extends into the middle one-third of the insulation layer. Its main portion extends along a direction parallel to the extension of the outer wall of the insulation layer. The middle part of the reinforcing liner 300 has several through holes, the area of which accounts for half of the area of the reinforcing liner, thereby reducing the weight of the liner. The reinforcing liner 300, the outer wall of the insulation layer 200, and the handle 500 are connected by a connector that passes through the outer wall of the insulation layer 200. This design eliminates the need to modify the frame structure when installing the reinforcing liner, and allows the stress of the handle to be directly transferred to the frame of the outer wall of the insulation layer and the interior of the insulation layer through the reinforcing liner, making the entire refrigeration equipment more resistant to stress and more robust.
[0050] The vehicle refrigerator has a reinforced structure formed by setting a reinforcing liner that is fixedly connected to the outer wall of the insulation layer and extends into the foam layer. This ensures that the outer wall of the insulation layer of the vehicle refrigerator does not deform or loosen in the high-stress area where the handle is connected. The handle area can remain stable during daily use and transportation, improving the insulation effect and extending the service life. This design does not significantly increase the overall weight of the vehicle refrigerator and does not occupy the storage space of the vehicle refrigerator.
[0051] Finally, it should be noted that the above embodiments are merely illustrative and not intended to limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention. The above descriptions are merely exemplary embodiments of this disclosure and are not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.
Claims
1. A refrigeration device, comprising an inner wall of an insulation layer, an outer wall of an insulation layer, and a foamed layer disposed between the inner wall of the insulation layer and the outer wall of the insulation layer, characterized in that, It also includes a reinforcing liner that is fixedly connected to the outer wall of the insulation layer. The reinforcing liner is fixedly connected to the outer wall of the insulation layer at both ends, and the middle part of the reinforcing liner extends into the foam layer. The outer wall of the insulation layer has a high-stress area, and the reinforcing liner is connected to the high-stress area. At least two-thirds of the reinforcing liner extends into the middle third of the insulation layer, and the main portion of the reinforcing liner extends along a direction parallel to the outer wall of the insulation layer, thereby maintaining a certain distance between the main portion of the reinforcing liner and the outer wall of the insulation layer. The reinforcing liner has a reinforcing rib in the middle, near the outer wall of the insulation layer. The reinforcing rib is a protrusion extending onto the surface of the reinforcing liner of the foam layer. The reinforcing liner has a through hole in its center to reduce its weight. The area of the through hole is between 1 / 6 and 2 / 3 of the area of the reinforcing liner. The reinforcing liner is not connected to the inner wall of the insulation layer.
2. The refrigeration equipment according to claim 1, characterized in that, The high-stress area is the area connecting the compressor bracket and / or the handle area.
3. The refrigeration equipment according to claim 2, characterized in that, The high-stress area is the area where the compressor bracket is connected. The two ends of the reinforcing liner are connected to the frame of the outer wall of the insulation layer and the compressor bracket, so that the reinforcing liner is fixedly connected to the outer wall of the insulation layer at both ends.
4. The refrigeration equipment according to claim 1, wherein the refrigeration equipment is a vehicle-mounted refrigerator.