Waterproof structure of portable refrigerator
By incorporating a multi-layered waterproof structure inside the portable refrigerator, the problem of insufficient waterproofing at the air inlet and outlet in humid environments is solved, achieving higher waterproof performance and safety, extending the equipment's lifespan, and reducing maintenance frequency and costs.
Patent Information
- Application Number
- CN202520127431.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-18
AI Technical Summary
Existing portable refrigerators are not waterproof in humid environments or in the event of accidental liquid spills, which can damage the DC compressor module and power socket, posing safety hazards and equipment failure risks, and shortening their service life.
The portable refrigerator has a multi-layered waterproof structure inside, including a first waterproof cover for the DC compressor module, a second waterproof cover for the power socket, and a fourth waterproof cover for the display screen. These waterproof covers, along with components such as sealing rings and rubber plugs, form multiple waterproof barriers to prevent liquids from entering the electronic components.
The portable refrigerator has improved waterproof performance, reduced the possibility of electronic components being damaged by moisture, lowered the failure rate and maintenance costs, enhanced safety and equipment reliability, extended service life, and meets the IPX5 waterproof standard.
Smart Images

Figure CN223769125U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of refrigerator, especially portable refrigerator's waterproof structure. BACKGROUND
[0002] With the popularity of outdoor activities and travel culture, people's demand for miniaturization and portability of refrigeration devices that can keep food and beverages fresh in different environments is growing. Portable refrigerators, as a product that can meet the above demand, have been widely used in the market. However, the existing portable refrigerators often ignore the importance of waterproof performance in design, especially in humid environments or accidental liquid splashing, the internal DC compressor module assembly is easily damaged by water, resulting in equipment failure and even safety hazards.
[0003] In addition, the existing portable refrigerators generally only set waterproof parts on the outside of the box to limit the entry of liquid, and generally do not set waterproof from the inside of the box, but the air holes at the air inlet and outlet are difficult to waterproof, the liquid may enter the refrigerator body from the air inlet and outlet, and further penetrate into the DC compressor module and the socket, thereby easily causing short circuit, which not only shortens the service life of the product, but also increases the maintenance cost.
[0004] The utility model is made based on the above situation. UTILITY MODEL CONTENTS
[0005] The utility model overcomes the defects of the prior art and provides a portable refrigerator waterproof structure that can waterproof from the inside of the refrigerator body, thereby improving the waterproof performance of the portable refrigerator.
[0006] The utility model is implemented through the following technical solutions:
[0007] A waterproof structure of a portable refrigerator, comprising a refrigerator body, the refrigerator body is provided with a DC compressor module inside, the DC compressor module is provided with a first waterproof structure for limiting the entry of liquid into the DC compressor module on the wiring end, the refrigerator body is also provided with a power supply socket for supplying power to the DC compressor module, the inner side of the power supply socket is provided with a second waterproof structure for limiting the entry of liquid from the inside of the refrigerator body into the power supply socket.
[0008] The waterproof structure of the portable refrigerator as described above, the first waterproof structure comprises a first waterproof cover sleeved on the wiring end of the DC compressor module.
[0009] The waterproof structure of the portable refrigerator as described above, the first waterproof cover is provided with a first wire hole for the wire to pass through.
[0010] The second waterproof structure comprises a second waterproof cover sleeved on the inside of the power supply socket.
[0011] The second waterproof cover is provided with a second wire passing hole for the wire to pass through.
[0012] The outside of the power supply socket is provided with a third waterproof structure for limiting the entry of liquid from the outside into the power supply socket.
[0013] The third waterproof structure comprises a rubber plug for plugging the plug-in interface of the power supply socket.
[0014] The refrigerator body is provided with a mounting port, and the mounting port is connected with a display screen and a third waterproof cover.
[0015] The third waterproof cover is provided with a buckle structure capable of being buckled on the convex ring.
[0016] The inside of the mounting port is further provided with a fourth waterproof cover for limiting the flow of liquid from the refrigerator body to the display screen.
[0017] Compared with the prior art, the portable refrigerator has the following advantages:
[0018] The application sets up a special waterproof structure for the direct-current compressor module and the power supply socket, reduces the possibility of damage to electronic components due to moisture, and prolongs the service life of the entire portable refrigerator. The first waterproof structure can effectively prevent liquid from entering the direct-current compressor module assembly, avoid short circuit or electric shock risk caused by moisture, and greatly improve the safety during use. Even in a humid environment or in the case of accidental splashing, the second waterproof structure can prevent liquid from penetrating from the inside to the power supply socket, ensuring the safety and stability of the charging process, and enhancing the working reliability of the equipment under various conditions. The waterproof structure reduces the failure rate caused by liquid intrusion, reduces the maintenance frequency and cost, and also reduces the user's demand for additional protective measures for the product. By protecting the direct-current compressor module from moisture damage, the conversion efficiency of the direct-current compressor module is ensured to be unaffected, which helps to maintain the energy efficiency level of the refrigerator and achieve the goal of energy saving and environmental protection. Ensure that the portable refrigerator meets the IPX5 waterproof standard. BRIEF DESCRIPTION OF DRAWINGS
[0019] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings.
[0020] Figure 1 is a structural schematic diagram of the refrigerator main body in the utility model;
[0021] Figure 2 is a structural schematic diagram of the direct-current compressor module and the power supply socket in the utility model;
[0022] Figure 3 is a structural schematic diagram of the second waterproof cover, the power supply socket and the rubber plug in the utility model;
[0023] Figure 4 is a structural schematic diagram of the first waterproof cover and the direct-current compressor module in the utility model;
[0024] Figure 5 is an exploded schematic diagram of the display screen assembly in the utility model;
[0025] Figure 6 is a cross-sectional schematic diagram of the display screen in the utility model. DETAILED DESCRIPTION
[0026] The utility model will be further described in conjunction with the drawings:
[0027] As Figures 1 to 6 shown in a portable refrigerator waterproof structure, including refrigerator main body 1, the refrigerator main body 1 is equipped with direct-current compressor module 2, the wiring end of direct-current compressor module 2 is equipped with the first waterproof structure 3 for limiting liquid to enter direct-current compressor module 2, the refrigerator main body 1 is still equipped with the power supply socket 4 for direct-current compressor module 2 and / built-in power supply, the inner side of power supply socket 4 is equipped with the second waterproof structure 5 for limiting liquid from the inside of refrigerator main body 1 to enter power supply socket 4.
[0028] The application sets up the waterproof structure specially for direct-current compressor module 2 and power supply socket 4, reduces the possibility of the damage of electronic components by moisture, and then prolongs the service life of the entire portable refrigerator. The first waterproof structure 3 can effectively prevent liquid from entering the direct-current compressor module 2 assembly, avoid the short circuit or electric shock risk caused by moisture, thereby greatly improving the safety in the use process. Even in a humid environment or in the case of accidental splashing, the second waterproof structure 5 can prevent liquid from penetrating from the inside to the power supply socket 4, ensure the safety and stability of the charging process, and enhance the working reliability of the equipment under various conditions. The waterproof structure reduces the failure rate caused by liquid intrusion, reduces the maintenance frequency and cost, and also reduces the user's demand for additional protective measures for the product. By protecting the direct-current compressor module 2 from moisture damage, the conversion efficiency of the direct-current compressor module 2 is ensured not to be affected, which helps to maintain the energy efficiency level of the refrigerator and achieve the goal of energy saving and environmental protection. Ensure that the portable refrigerator reaches IPX5 waterproof standard.
[0029] In one embodiment, the first waterproof structure 3 includes a first waterproof cover that is sleeved onto the terminals of the DC compressor module 2. The first waterproof cover, directly sleeved onto the terminals of the DC compressor module 2, forms an effective physical barrier, preventing liquids and moisture from directly contacting the DC compressor module 2 components. This design is simple and effective, significantly reducing the risk of malfunctions due to liquid intrusion. The sleeved design means the first waterproof cover can be installed relatively easily onto the terminals of the DC compressor module 2, simplifying the production assembly process. Furthermore, it can be quickly disassembled if replacement or repair is required, facilitating subsequent maintenance. The first waterproof cover can be customized according to the different shapes and sizes of the DC compressor module 2 terminals, ensuring a good sealing effect, suitable for various types of portable refrigerators, and enhancing the versatility and flexibility of the design.
[0030] Furthermore, the first waterproof cover is provided with a first wire-passing hole 31 for the wire to pass through. The first wire-passing hole 31 can be located at the lower part or side of the first waterproof cover. In one embodiment, a sealing plug can be provided between the first wire-passing hole 31 and the wire to achieve a seal.
[0031] In one embodiment, the second waterproof structure 5 includes a second waterproof cover fitted inside the power socket 4. The second waterproof cover can be connected to the power socket 4 using threaded fasteners or other connection methods, thereby preventing the second waterproof cover from loosening and falling off when the charging plug is frequently plugged and unplugged from the power socket 4.
[0032] Furthermore, the second waterproof cover is provided with a second wire-passing hole 51 for the wire to pass through. The second wire-passing hole 51 can be located at the bottom or side of the second waterproof cover. In one embodiment, a sealing plug can be provided between the second wire-passing hole 51 and the wire to form a seal.
[0033] Furthermore, a third waterproof structure 6 is provided on the outside of the power socket 4 to prevent liquid from entering the power socket 4 from the outside. The third waterproof structure 6 directly prevents external liquid from entering the power socket 4, ensuring that the inside of the charging interface remains dry even in wet or splashed conditions, avoiding short circuits or other electrical faults caused by moisture. By preventing liquid intrusion, the risk of electric shock to users during charging is greatly reduced, enhancing the overall safety of the portable refrigerator. This is especially important for outdoor use, as outdoor environments are more prone to rain or moisture. It effectively protects the power socket 4 and its internal circuitry from moisture and corrosion, reducing oxidation, rust, and other problems caused by moisture, thereby extending the lifespan of the charging interface and the entire device.
[0034] Specifically, the third waterproof structure 6 includes a rubber plug for sealing the socket 4's interface. Users can easily insert or remove the rubber plug from the socket 4; the operation is simple and quick, requiring no complicated tools or procedures, making it ideal for outdoor or emergency use. The rubber plug has a relatively low manufacturing cost and is easy to mass-produce, which helps reduce the overall cost of the product, making the portable refrigerator more price-competitive in the market. Recyclable or environmentally friendly materials can be chosen to make the rubber plug, reducing environmental impact and aligning with current green design principles. In addition to being waterproof, the rubber plug also has dustproof and sandproof functions, further enhancing the protection of the socket.
[0035] In one embodiment, the refrigerator body 1 is provided with an installation port 11, and a display screen 81 and a third waterproof cover 82 are connected inside the installation port 11. The third waterproof cover 82 is located outside the display screen 81. A protruding ring 111 is provided on the inner side wall of the installation port 11, and a sealing ring 112 is provided between the third waterproof cover 82 and the protruding ring 111.
[0036] The combination of the third waterproof cover 82 and the sealing ring 112 provides double protection, ensuring that liquids cannot enter the interior of the display screen 81 even in humid or watery environments. The sealing ring 112 fills the tiny gap between the third waterproof cover 82 and the raised ring 111, forming a tight seal. The display screen 81 is physically protected by the coverage of the third waterproof cover 82.
[0037] Furthermore, the third waterproof cover 82 is provided with a snap-fit structure 821 that can be fastened to the protruding ring 111. This facilitates installation, eliminates the need for threaded fasteners, and prevents the connection structure from being exposed, further improving aesthetics.
[0038] In one embodiment, the inner side of the mounting port 11 is further provided with a fourth waterproof cover 83 to restrict liquid from flowing from the refrigerator body 1 to the display screen 81. The fourth waterproof cover 83, together with the third waterproof cover 82, provides a double waterproof barrier on both the inner and outer sides. Even if a small amount of liquid enters the refrigerator, it cannot easily reach the display screen 81, greatly improving the safety of the display screen 81. Since condensation easily forms inside the refrigerator due to temperature changes, the fourth waterproof cover 83 can effectively prevent this condensation from flowing to the display screen 81, avoiding electrical faults or damage to the display screen 81 caused by moisture.
Claims
1. A waterproof structure of a portable refrigerator, characterized by: The refrigerator body (1) is internally provided with a direct-current compressor module (2), a first waterproof structure (3) for limiting liquid from entering the direct-current compressor module (2) is arranged on the wiring end of the direct-current compressor module (2), a power supply socket (4) for supplying power to the direct-current compressor module (2) is further arranged on the refrigerator body (1), and a second waterproof structure (5) for limiting liquid from entering the power supply socket (4) from the inside of the refrigerator body (1) is arranged on the inside of the power supply socket (4).
2. The waterproof structure of a portable refrigerator according to claim 1, wherein: The first waterproof structure (3) comprises a first waterproof cover sleeved on the wiring end of the direct-current compressor module (2).
3. The waterproof structure of a portable refrigerator according to claim 2, wherein: The first waterproof cover is provided with a first wire hole (31) for passing wires.
4. The waterproof structure of a portable refrigerator according to any one of claims 1 to 3, characterized in that: The second waterproof structure (5) comprises a second waterproof cover sleeved on the inside of the power supply socket (4).
5. The waterproof structure of a portable refrigerator according to claim 4, wherein: The second waterproof cover is provided with a second wire hole (51) for passing wires.
6. The waterproof structure of a portable refrigerator according to claim 5, wherein: The outside of the power supply socket (4) is provided with a third waterproof structure (6) for limiting liquid from entering the power supply socket (4) from the outside.
7. The waterproof structure of a portable refrigerator according to claim 6, wherein: The third waterproof structure (6) comprises a rubber plug for plugging the plug-in interface of the power supply socket (4).
8. The waterproof structure of a portable refrigerator according to any one of claims 1 to 3, characterized by: The refrigerator body (1) is provided with a mounting port (11), a display screen (81) and a third waterproof cover (82) are connected in the mounting port (11), the third waterproof cover (82) is arranged on the outside of the display screen (81), a convex ring (111) is arranged on the inner side wall of the mounting port (11), and a sealing ring (112) is arranged between the third waterproof cover (82) and the convex ring (111).
9. The waterproof structure of a portable refrigerator according to claim 8, wherein: The third waterproof cover (82) is provided with a buckle structure (821) capable of being buckled on the convex ring (111).
10. The waterproof structure of a portable refrigerator according to claim 9, wherein: The inside of the mounting port (11) is further provided with a fourth waterproof cover (83) for limiting liquid from flowing from the inside of the refrigerator body (1) to the display screen (81).