Vehicle-mounted refrigerator based on phase-change material double refrigeration cabins
By using a dual-cooling chamber made of phase change materials and a buffer connection structure, the problems of items shaking, low cooling efficiency, and noise from the lid in the vehicle refrigerator are solved, achieving stable refrigeration, flexible adjustment, and heat preservation during power outages, thus extending its service life.
Patent Information
- Application Number
- CN202511248349.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2025-11-11
AI Technical Summary
Existing vehicle refrigerators suffer from problems such as items being easily damaged by shaking during driving, low cooling efficiency, and noise and severe wear when the lid is closed.
The design employs a dual-cooling chamber based on phase change materials, combined with a buffer connection structure and a limiting mechanism, to achieve item positioning, cold air accumulation, and lid buffering. Paraffin-based composite phase change materials are used to maintain cooling during power outages.
It effectively prevents items from shaking, improves cooling efficiency, extends the refrigerator's lifespan, ensures the lid is cushioned and slows down, and meets the insulation needs of long-distance travel.
Smart Images
Figure CN120926671A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle refrigerator technology, specifically to a vehicle refrigerator based on a dual-cooling compartment made of phase change materials. Background Technology
[0002] With the rapid development of the automotive industry, car refrigerators have become an indispensable accessory in modern cars. Especially during long-distance travel or outdoor activities, car refrigerators can provide refrigeration or freezing functions for food and beverages, greatly enhancing the user's travel experience. However, existing car refrigerators still have the following problems in actual use: Insufficient stability of items: During vehicle operation, especially on bumpy roads, items inside the refrigerator are prone to shaking or rolling and colliding with each other, resulting in damage to the items or the internal structure of the refrigerator. Low cooling efficiency: Traditional car refrigerators have a fixed cooling space and cannot adjust the cold air gathering area according to the actual storage volume, resulting in uneven cold air distribution and low cooling efficiency, especially in the absence of power, they cannot effectively maintain a stable low temperature environment. Noise and wear when the lid closes: When the lid closes, it falls rapidly due to gravity and is prone to colliding with the refrigerator body, generating noise. Long-term use may cause structural damage to the lid or the refrigerator body, affecting its service life. Summary of the Invention
[0003] The purpose of this invention is to provide a vehicle refrigerator based on a dual-cooling compartment made of phase change materials, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a vehicle refrigerator based on a dual-cooling compartment of phase change material, comprising a refrigerator body, a lid provided on the top of the refrigerator body, the refrigerator body being divided into a refrigerator compartment and a freezer compartment, and a first heat exchange plate provided on the lower end face of both the refrigerator compartment and the freezer compartment, and the first heat exchange plate being in contact with the refrigeration pipe; A buffer connection structure is used to provide a buffering effect when the lid is closed. The buffer connection structure is connected to the lid and to the refrigerator body. The limiting mechanism is used to limit the position of items and simultaneously adjust the space of the refrigerator and freezer compartments. The limiting mechanism is nested with the refrigerator and freezer compartments.
[0005] Preferably, the buffer connection structure includes a fixing plate that is fixed to the lid, and the fixing plate is fixedly connected to the rotating shaft. A protruding plate is fixed on the rotating shaft, and the rotating shaft bearing is connected to the bracket. The bracket is fixedly connected to the refrigerator body. Through the above structure, the lid can be flipped open and closed, thereby ensuring the normal use of the device.
[0006] Preferably, a limiting plate is also fixed on the bracket, and the limiting plate contacts the protruding plate to achieve a positioning function. When the lid is opened, the limiting effect between the limiting plate and the protruding plate can limit the opening angle of the lid and prevent the lid from being damaged due to an excessive opening angle.
[0007] Preferably, the bracket is further fixed with two sets of fixing frames, and the fixing frames are fixedly connected to the cylinder. The lower end of the cylinder is provided with a circular hole for gas flow. Through the above structure, the gas flow inside the cylinder can be facilitated, thereby providing a basic guarantee for the closing and buffering of the lid and avoiding the lid from colliding with the refrigerator body due to gravity.
[0008] Preferably, a piston is slidably connected inside the cylinder, and the upper end of the piston is slidably connected to the convex plate. The lower end of the piston is fixed to one end of the first spring, while the other end of the first spring is fixed inside the cylinder. Through the sliding action between the convex plate and the piston, a basic force can be provided for the downward movement of the piston. Combined with the elastic action of the first spring, a basic guarantee can be provided for the automatic reset of the piston.
[0009] Preferably, the limiting mechanism includes a heat insulation plate installed in the refrigerator compartment and the freezer compartment, and anti-slip strips are installed at equal intervals on the lower end surface of the heat insulation plate. Through the action of the anti-slip strips, the items inside the refrigerator can be pressed and limited, thereby effectively preventing the items from sliding.
[0010] Preferably, the heat insulation plate is further fixed with paraffin-based composite phase change material at equal intervals, and a second heat exchange plate is fixed on the lower end face of the paraffin-based composite phase change material. The second heat exchange plate and the anti-slip strip are staggered. Through the action of the paraffin-based composite phase change material, energy storage can be achieved. Thus, when the power is off, the melting of the paraffin-based composite phase change material can absorb heat, thereby ensuring the cooling effect of the refrigerator in the power-off state.
[0011] Preferably, a fixing box is fixed to the upper surface of the heat insulation board, and mounting boxes are symmetrically fixed to the fixing box. The mounting boxes and the sliding rod are slidably connected. At the same time, a mounting plate is fixed to one end of the sliding rod, and a rubber plate is fixed to the mounting plate. The rubber plate contacts the inner wall of the refrigerator and freezer compartments to achieve positioning. Through the action of the rubber plate, the heat insulation board can be positioned, thereby ensuring the stability of the heat insulation board installation.
[0012] Preferably, the other end of the slide rod is fixed with a movable plate, and the upper end of the movable plate is fixed with a lever plate. The lever plate and the fixed box are slidably connected. At the same time, a second spring is fixed between the movable plate and the fixed box. The second spring is symmetrically distributed about the center line of the movable plate. By pushing the lever plate, the position of the rubber plate can be adjusted, thereby realizing the locking and unlocking function of the heat insulation plate.
[0013] Preferably, a piston head is also fixed on the slide rod, and the piston head is slidably connected inside the mounting box. The air outlet of the mounting box is connected to the annular airbag through a conduit. At the same time, the annular airbag is fixed on the outside of the heat insulation plate. The annular airbag contacts the inner wall of the refrigerator compartment and the freezer compartment to achieve a seal. Through the above structure, the heat insulation plate can achieve a sealing effect between the heat insulation plate and the refrigerator compartment and the freezer compartment, preventing cold air leakage and thus effectively ensuring the cooling effect of the device.
[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This vehicle-mounted refrigerator based on phase change materials with dual cooling compartments can press and limit items in the refrigerator or freezer compartments through a detachable partition limiting mechanism, effectively preventing items from rolling or colliding during driving. It can also flexibly adjust the cooling space according to the storage volume, so that the cold air is concentrated in the storage area, significantly improving the freezing or refrigeration efficiency, avoiding cold air waste, and ensuring the refrigeration effect and efficiency of the refrigerator. 2. This vehicle-mounted refrigerator based on a dual-cooling compartment of phase change material can store cold when the refrigerator is powered on and continue to cool when the vehicle is powered off by melting and absorbing heat through the paraffin-based composite phase change material. This effectively extends the heat preservation time of the refrigerator in the power-off state and meets the needs of long-distance outdoor travel. 3. This vehicle-mounted refrigerator based on phase change material dual cooling compartments adopts a buffer connection structure to connect the refrigerator body and the lid. When the lid is closed, the elastic force and air pressure resistance automatically achieve the buffering and deceleration effect of the lid, thereby effectively avoiding the lid from colliding with the refrigerator body due to its own weight, which would cause noise and damage. This effectively extends the service life of the device. In addition, the cooperation of the limiting plate and the convex plate can limit the opening angle of the lid and prevent damage caused by excessive opening. Attached Figure Description
[0015] Figure 1 This is a frontal perspective three-dimensional structural diagram of the box lid in the open state of the present invention; Figure 2 This is a frontal perspective three-dimensional structural diagram of the box lid in the closed state of the present invention; Figure 3 This is a three-dimensional structural diagram of the refrigerator body of the present invention, viewed from below. Figure 4 This is a schematic diagram of the three-dimensional structure of the buffer connection structure of the present invention; Figure 5 This is a frontal three-dimensional structural diagram of the limiting mechanism of the present invention; Figure 6 This is a frontal cross-sectional three-dimensional structural diagram of the limiting mechanism of the present invention; Figure 7 This is a bottom-view cross-sectional three-dimensional structural diagram of the limiting mechanism of the present invention; Figure 8 This is a schematic diagram of the refrigerator body of the present invention in its placement state.
[0016] In the diagram: 1. Refrigerator body; 101. Refrigerator compartment; 102. Freezer compartment; 103. First heat exchange plate; 2. Lid; 3. Buffer connection structure; 301. Fixing plate; 302. Rotating shaft; 303. Protruding plate; 304. Bracket; 305. Limiting plate; 306. Fixing bracket; 307. Cylinder; 308. Circular hole; 309. Piston; 310. First spring; 4. Limiting mechanism; 401. Heat insulation plate; 402. Anti-slip strip; 403. Paraffin-based composite phase change material; 404. Second heat exchange plate; 405. Fixing box; 406. Mounting box; 407. Sliding rod; 408. Mounting plate; 409. Rubber plate; 410. Movable plate; 411. Paddle plate; 412. Second spring; 413. Piston head; 414. Annular airbag. Detailed Implementation
[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] Please see Figures 1-8 The present invention provides a technical solution: a vehicle refrigerator based on a dual-cooling compartment of phase change material, including a refrigerator body 1, a cover 2 provided on the top of the refrigerator body 1, the refrigerator body 1 being divided into a refrigerator compartment 101 and a freezer compartment 102, and a first heat exchange plate 103 provided on the lower end face of both the refrigerator compartment 101 and the freezer compartment 102, and the first heat exchange plate 103 being in contact with the refrigeration pipe; The buffer connection structure 3 is used to buffer the lid 2 when it is closed. The buffer connection structure 3 is connected to the lid 2 and to the refrigerator body 1. The limiting mechanism 4 is used to limit the position of the items and simultaneously adjust the space of the refrigerator compartment 101 and the freezer compartment 102. The limiting mechanism 4 is nested with the refrigerator compartment 101 and the freezer compartment 102.
[0019] The limiting mechanism 4 includes a heat insulation plate 401 disposed in the refrigerator compartment 101 and the freezer compartment 102, and anti-slip strips 402 are evenly spaced installed on the lower end surface of the heat insulation plate 401; paraffin-based composite phase change material 403 is also evenly fixed inside the heat insulation plate 401, and a second heat exchange plate 404 is fixed on the lower end surface of the paraffin-based composite phase change material 403, and the second heat exchange plate 404 and the anti-slip strips 402 are staggered; a fixing box 405 is fixed on the upper end surface of the heat insulation plate 401, and mounting boxes 406 are symmetrically fixed on the fixing box 405, and the mounting boxes 406 are slidably connected to the slide rod 407. At the same time, a mounting plate 408 is fixed to one end of the slide rod 407, and a rubber plate 409 is fixed on the mounting plate 408, and the rubber plate 409 is connected to the refrigerator compartment 101. 1. The inner wall of the freezer compartment 102 is contacted to achieve positioning; the other end of the slide rod 407 is fixed with a movable plate 410, and the upper end of the movable plate 410 is fixed with a lever 411, and the lever 411 is slidably connected to the fixed box 405. At the same time, a second spring 412 is also fixed between the movable plate 410 and the fixed box 405. The second spring 412 is symmetrically distributed about the center line of the movable plate 410. A piston head 413 is also fixed on the slide rod 407, and the piston head 413 is slidably connected in the mounting box 406. The air outlet of the mounting box 406 is connected to the annular air bag 414 through a conduit. At the same time, the annular air bag 414 is fixed to the outside of the heat insulation plate 401. The annular air bag 414 contacts the inner wall of the refrigerator compartment 101 and the freezer compartment 102 to achieve sealing. When using a vehicle refrigerator with dual cooling compartments based on phase change materials, such as Figures 1-7As shown, first open the lid 2, and remove the limiting mechanism 4 in the refrigerator compartment 101 or freezer compartment 102 according to the actual storage needs. Taking the storage of beverages in the refrigerator compartment 101 as an example, simply press the lever 411 to move the slide bar 407, thereby reducing the distance between the two fixed boxes 405. At this time, the second spring 412 is compressed. When the slide bar 407 moves, it simultaneously drives the mounting plate 408 and the rubber plate 409 to move, causing the rubber plate 409 to separate from the inner wall of the refrigerator compartment 101, thereby releasing the limiting effect of the heat insulation plate 401. And when the slide bar 407 moves, it simultaneously drives the piston head 413 to move. Sliding within the mounting box 406 allows for air intake, enabling gas from the annular airbag 414 to enter and be stored within the mounting box 406 via a conduit. As the gas level in the annular airbag 414 decreases, the seal between the annular airbag 414 and the inner wall of the refrigerator compartment 101 is released. The insulation plate 401 can then be removed, and the beverage to be stored can be placed horizontally within the refrigerator compartment 101 for storage. After storage, based on the above principle, pressing the lever 411 allows the insulation plate 401 to be nested within the refrigerator compartment 101. During the installation of the insulation plate 401, when the lower surface of the insulation plate 401... When the anti-slip strip 402 comes into contact with the beverage, the lever 411 is released. Under the elastic action of the second spring 412, the slide rod 407 is reset, thereby resetting the rubber plate 409 to contact the inner wall of the refrigerator compartment 101, thus positioning the heat insulation plate 401 and ensuring the stability of the heat insulation plate 401 installation. At this time, through the action of the anti-slip strip 402 and the heat insulation plate 401, the beverage can be pressed and limited, effectively preventing the beverage from rolling during operation. When the slide rod 407 is reset, it simultaneously drives the piston head 413 to slide and reset within the mounting box 406, thereby allowing the gas in the mounting box 406 to enter the annular airbag 414, thereby activating the annular airbag. 414 expands and contacts the inner wall of the refrigerator compartment 101 to achieve a sealing effect. At this time, the heat insulation plate 401 and the refrigerator compartment 101 form a sealed cavity, and this sealed cavity is the storage area of the beverage. This allows the cold air to achieve the cooling effect only within the sealed cavity. Furthermore, the volume of the sealed cavity can be adjusted according to the amount of beverage stored, thus better ensuring the refrigeration effect of the beverage. During the refrigeration process, the paraffin-based composite phase change material 403 can be solidified through the action of the second heat exchange plate 404. When the car power is cut off, the melting and heat absorption of the paraffin-based composite phase change material 403 can effectively ensure the refrigeration effect, thereby effectively meeting the actual use requirements. The buffer connection structure 3 includes a fixing plate 301 fixed to the cover 2, and the fixing plate 301 is fixedly connected to the rotating shaft 302. A protruding plate 303 is fixed on the rotating shaft 302, and the rotating shaft 302 is bearing connected to the bracket 304. The bracket 304 is fixedly connected to the refrigerator body 1. A limiting plate 305 is also fixed on the bracket 304, and the limiting plate 305 contacts the protruding plate 303 to achieve a positioning function. Two sets of fixing brackets 306 are also fixed on the bracket 304, and the fixing brackets 306 are fixedly connected to the cylinder 307. A circular hole 308 for gas flow is opened at the lower end of the cylinder 307. A piston 309 is slidably connected inside the cylinder 307, and the upper end of the piston 309 is slidably connected to the protruding plate 303. The lower end of the piston 309 is fixed to one end of the first spring 310, and the other end of the first spring 310 is fixed inside the cylinder 307. When opening box lid 2, as Figures 1-4 As shown, the opening of the box cover 2 can be achieved through the rotation between the rotating shaft 302 and the bracket 304. When the rotating shaft 302 rotates, it synchronously drives the convex plate 303 to rotate. When the convex plate 303 separates from the piston 309, the piston 309 moves upward under the elastic action of the first spring 310. When the convex plate 303 contacts the limiting plate 305, it limits the opening angle of the box cover 2, preventing damage due to excessive opening angle. When closing the box cover 2, the same principle applies. During the closing process, when the box cover 2 rotates rapidly due to its own weight, the rotating shaft 302 rotates synchronously, driving the convex plate 303 to rotate. When the convex plate 303 rapidly contacts the piston 309 under the weight of the box cover 2, the piston 309 moves downward under force, and the first spring 310... When the piston 309 contracts under pressure, the rapid rotation of the convex plate 303 generates a large impact force on the piston 309, causing the piston 309 to move downward. Due to the action of the first spring 310, a primary buffer is achieved. As the piston 309 moves downward, the air on the lower side of the cylinder 307 needs to be discharged through the circular hole 308. However, due to the limited diameter of the circular hole 308, the speed at which the air is discharged from the circular hole 308 is less than the amount of air discharged by the piston 309 as it moves downward. This increases the air pressure on the lower side of the piston 309. Through the action of air pressure, a secondary buffer is achieved on the piston 309, thereby achieving the buffering effect of the convex plate 303 and the lid 2. This effectively reduces the rotational speed of the lid 2 when it is closed, until finally, under the action of the lid 2's own weight, the lid 2 closes with the refrigerator body 1, thus effectively preventing the lid 2 from colliding with the refrigerator body 1 due to its own weight and causing damage to the device.
[0020] It should be noted that, in this document, 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 process, method, article, or apparatus.
[0021] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.
Claims
1. A vehicle-mounted refrigerator based on a dual-cooling compartment using phase change materials, comprising a refrigerator body (1), a lid (2), a refrigerator compartment (101), and a freezer compartment (102), characterized in that: The refrigerator body (1) is divided into a refrigerator compartment (101) and a freezer compartment (102), and a first heat exchange plate (103) is provided on the lower end face of both the refrigerator compartment (101) and the freezer compartment (102), and the first heat exchange plate (103) is in contact with the refrigeration pipe; The refrigerator body (1) and the lid (2) are connected by a buffer connection structure (3), which provides a buffering effect when the lid (2) is closed. Both the refrigerator compartment (101) and the freezer compartment (102) are equipped with a detachable limiting mechanism (4). The limiting mechanism (4) is used to limit the stored items and adjust the refrigeration space of the refrigerator compartment (101) or the freezer compartment (102).
2. The vehicle-mounted refrigerator based on a dual-cooling compartment using phase change materials according to claim 1, characterized in that: The buffer connection structure (3) includes a fixing plate (301) that is fixed to the lid (2), and the fixing plate (301) is fixedly connected to the rotating shaft (302). A protruding plate (303) is fixed on the rotating shaft (302), and the rotating shaft (302) is connected to the bracket (304) by a bearing. The bracket (304) is fixedly connected to the refrigerator body (1).
3. A vehicle-mounted refrigerator based on a dual-cooling compartment using phase change materials according to claim 2, characterized in that: A limiting plate (305) is also fixed on the bracket (304), and the limiting plate (305) contacts the protruding plate (303) to achieve the positioning function.
4. A vehicle-mounted refrigerator based on a dual-cooling compartment using phase change materials according to claim 3, characterized in that: Two sets of fixing brackets (306) are also fixed on the bracket (304), and the fixing brackets (306) are fixedly connected to the cylinder (307), and the lower end of the cylinder (307) is provided with a circular hole (308) for gas flow.
5. A vehicle-mounted refrigerator based on a dual-cooling compartment using phase change materials according to claim 4, characterized in that: The cylinder (307) is slidably connected to a piston (309), and the upper end of the piston (309) is slidably connected to the protrusion (303). The lower end of the piston (309) is fixed to one end of the first spring (310), while the other end of the first spring (310) is fixed inside the cylinder (307).
6. A vehicle-mounted refrigerator based on a dual-cooling compartment using phase change materials according to claim 1, characterized in that: The limiting mechanism (4) includes a heat insulation plate (401) installed in the refrigerator compartment (101) and the freezer compartment (102), and anti-slip strips (402) are installed at equal intervals on the lower end surface of the heat insulation plate (401).
7. A vehicle-mounted refrigerator based on a dual-cooling compartment using phase change materials according to claim 6, characterized in that: The heat insulation plate (401) is also fixed with paraffin-based composite phase change material (403) at equal intervals, and a second heat exchange plate (404) is fixed on the lower end face of the paraffin-based composite phase change material (403). The second heat exchange plate (404) and the anti-slip strip (402) are staggered. The paraffin-based composite phase change material (403) solidifies and stores cold when energized, and melts and absorbs heat when de-energized, so as to maintain the continuous cooling effect of the refrigerator.
8. A vehicle-mounted refrigerator based on a dual-cooling compartment using phase change materials according to claim 7, characterized in that: A fixing box (405) is fixed on the upper surface of the heat insulation plate (401), and mounting boxes (406) are symmetrically fixed on the fixing box (405). The mounting box (406) and the slide rod (407) are slidably connected. At the same time, a mounting plate (408) is fixed on one end of the slide rod (407). A rubber plate (409) is fixed on the mounting plate (408), and the rubber plate (409) contacts the inner wall of the refrigerator compartment (101) and the freezer compartment (102) to achieve positioning.
9. A vehicle-mounted refrigerator based on a dual-cooling compartment using phase change materials according to claim 8, characterized in that: The other end of the slide bar (407) is fixed with a movable plate (410), and a lever (411) is fixed at the upper end of the movable plate (410). The lever (411) is slidably connected to the fixed box (405). At the same time, a second spring (412) is fixed between the movable plate (410) and the fixed box (405). The second spring (412) is symmetrically distributed about the center line of the movable plate (410).
10. A vehicle-mounted refrigerator based on a dual-cooling compartment using phase change materials according to claim 9, characterized in that: A piston head (413) is also fixed on the slide rod (407), and the piston head (413) is slidably connected in the mounting box (406). The air outlet of the mounting box (406) is connected to the annular airbag (414) through a conduit. At the same time, the annular airbag (414) is fixed on the outside of the heat insulation plate (401). The annular airbag (414) contacts the inner wall of the refrigerator compartment (101) and the freezer compartment (102) to achieve sealing.