Portable refrigerator

By using a parallel battery slot and power bank power supply design, combined with a pulley and lever structure, the power supply problem of medical equipment in remote mountainous areas is solved, ensuring stable transportation and long-term refrigeration of blood samples, and achieving reliable power supply and sample protection.

CN224215647UActive Publication Date: 2026-05-08THE FIRST AFFILIATED HOSPITAL OF JINAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST AFFILIATED HOSPITAL OF JINAN UNIV
Filing Date
2025-06-12
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The existing medical equipment in remote mountainous areas has insufficient power supply and difficulty in supplying refrigeration power, resulting in unstable transportation of blood samples and difficulty in meeting the needs of long-term refrigeration.

Method used

It features dual battery slots connected in parallel, powered by a power bank, and incorporates pulleys and an adjustable lever design. It also includes a built-in temperature sensor and shock absorption structure to ensure power supply and transportation stability.

Benefits of technology

It has enabled a reliable power supply in remote mountainous areas, ensuring stable transportation and long-term cold storage of blood samples and reducing the risk of sample breakage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224215647U_ABST
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Abstract

The utility model discloses a portable refrigerator which comprises a refrigerator body and an upper cover, a refrigerating chamber, a refrigerating module and a controller are arranged in the refrigerator body, a power supply socket and at least two battery clamping grooves are further arranged on the refrigerator body, storage batteries are detachably installed in the battery clamping grooves, and all the storage batteries are arranged in parallel. The controller is electrically connected with the storage battery and the refrigeration module; pulleys are arranged at the bottom of the left side of the refrigerator body, and a pull rod facilitating pulling of the refrigerator is arranged on the right side of the refrigerator body. According to the design, the double-battery clamping grooves arranged in parallel are used for providing power, so that blood samples can be conveniently stored, transported and used when people go out. The storage battery can be a power bank and is powered by mains supply when used in a hospital, the charging mode is similar to mobile phone charging, and vehicle-mounted charging and charging with the power bank can be achieved. The box body adopts a single-side pulley structure, and is provided with a foldable pull rod, so that carrying and single-hand transportation become easy.
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Description

Technical Field

[0001] This utility model relates to the field of medical supplies transportation and storage, specifically a portable refrigerator for use in the medical field. Background Technology

[0002] In today's increasingly competitive healthcare industry, many hospitals have launched door-to-door services to improve service levels and address the difficulties faced by people with mobility issues in accessing medical care. When medical staff travel to provide consultations or collect blood samples, they need to carry small refrigerators to ensure the viability of the samples. The transportation of blood samples, in particular, requires specific temperatures and reliable transport vehicles. Existing equipment suffers from insufficient power supply, especially in remote mountainous areas where ensuring a reliable power supply for refrigeration is difficult, and sample stability is also hard to guarantee. Furthermore, the refrigeration duration is generally short, failing to meet the needs of long-term refrigerated transport. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a portable refrigerator that facilitates the storage and transportation of blood samples collected during field trips.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a portable refrigerator, including a box body and a top cover, wherein the box body is provided with a refrigerator compartment, a refrigeration module and a controller, and the box body is also provided with a power socket and at least two battery slots for providing power. A storage battery is detachably installed in the two battery slots, and all the storage batteries are arranged in parallel. The controller is electrically connected to the storage batteries and the refrigeration module; a set of casters is provided on the bottom left side of the box body, and a pull rod for easy pulling of the refrigerator is provided on the right side of the box body.

[0005] Furthermore, the battery can be a power bank, normally powered by mains electricity in the hospital, and powered by the battery when out and about. The enclosure is also equipped with a charging port for convenient charging of the battery, which can be charged in a manner similar to charging a mobile phone, either through a vehicle or with a power bank.

[0006] Furthermore, the rear end of the top cover is connected to the box body via a hinge, and the front end of the top cover is provided with a handle groove for easy opening.

[0007] Furthermore, one end of the pull rod is hinged to the box body, and the other end of the pull rod is equipped with a pull ring for easy use. To accommodate users of different heights, the pull rod is an adjustable telescopic rod. For easy storage, the box body can be provided with a slot to hold the pull rod in place; when not in use, the pull rod can be inserted into the slot for storage.

[0008] Furthermore, the refrigerated compartment is equipped with a blood collection specimen rack, which includes a connecting frame and a top plate and a bottom plate connected to the connecting frame. The connecting frame has a connecting buckle or a connecting positioning part that mates with the box body. The top plate has several through holes adapted for blood collection tubes, and the bottom plate has several arc-shaped grooves adapted for the bottom of the blood collection tubes corresponding to each of the through holes. Each through hole and arc-shaped groove is equipped with a shock-absorbing pad, and the top plate is also equipped with a movable pressure plate for pressing the blood collection tubes corresponding to each of the through holes. In this way, even if the blood collection tubes are bumped during transportation, the shock-absorbing pads and movable pressure plates can effectively protect the blood collection tubes and prevent damage to the blood samples. The movable pressure plate is made of elastic band, and the two ends of the elastic band are fixed to the top plate with buttons or Velcro, so that the blood collection tubes can be easily placed and fixed even with one hand.

[0009] Furthermore, a temperature sensor is provided in the refrigerator compartment, and a thermometer is also provided on the cabinet. The controller is electrically connected to the temperature sensor and the thermometer.

[0010] Furthermore, the top cover may be provided with a transparent window to facilitate observation of the sample inside the chamber. The transparent window is made of double-layered vacuum glass to reduce interference with the temperature inside the chamber.

[0011] Furthermore, the top cover can also be equipped with a small sliding door that connects to the cold storage compartment. By simply opening the small sliding door, medical staff can easily place and retrieve samples, which can reduce interference with the temperature of the cold storage compartment inside the box.

[0012] The beneficial effects of this utility model are as follows: This design adopts a parallel dual-battery slot to provide power, which is convenient for the storage and transportation of blood samples collected outside the hospital and ensures power supply; the battery can be a power bank, and when used in the hospital, it is powered by the mains power. The charging method is similar to that of a mobile phone, and it can be charged in a vehicle or by a power bank; the box adopts a single-sided pulley structure for easy movement and has a foldable pull rod to make carrying and one-handed transportation easy; the samples inside the box are reliably fixed to avoid leakage and damage accidents. Attached Figure Description

[0013] Figure 1-3 These are the front view, right view, and top view of this utility model;

[0014] Figure 4 This is a diagram showing the usage state of this utility model;

[0015] Figure 5 This is a circuit block diagram of the present invention;

[0016] Figure 6 This is a schematic diagram of the blood collection specimen rack structure of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] A portable refrigerator, such as Figures 1-3 As shown, the device includes a housing 1 and a top cover 2. The rear end of the top cover 2 is connected to the housing 1 via a hinge, and the front end of the top cover 2 has a handle groove 21 for easy opening. The housing 1 contains a refrigerator compartment, a refrigeration module, and a controller. The housing 1 also has a power socket 11 and at least two battery slots 12 for providing power. A removable battery is installed in each of the two battery slots 12. Each battery slot 12 has an interface for electrical connection with the battery, allowing connection to the corresponding interface of the battery inserted into the slot 12 to achieve electrical power supply.

[0019] A set of casters 13 is provided on the bottom left side of the cabinet 1, and a pull rod 14 for easy pulling of the refrigerator is provided on the right side of the cabinet 1. One end of the pull rod 14 is hinged to the cabinet 1, and the other end of the pull rod 14 is provided with a pull ring, such as... Figure 4 As shown, the lever 14 can be pulled up at a certain angle to facilitate pulling the refrigerator. Figure 5 As shown, all the batteries are connected in parallel, and the controller is electrically connected to the batteries and the cooling module. The parallel connection of the batteries can improve the stability of power supply.

[0020] Furthermore, the battery can be a power bank, normally powered by mains electricity in the hospital, and powered by the battery when out and about. The housing 1 is also equipped with a charging interface for convenient charging of the battery, which can be charged in a manner similar to charging a mobile phone, either through a vehicle or with a power bank.

[0021] Furthermore, an emergency power interface for connecting to a power bank is provided on the housing 1, and the emergency power interface is electrically connected to the controller. The emergency power interface can be USB or Type-C, and in special emergency situations, it can be directly connected to a regular power bank to achieve a cooling function.

[0022] Furthermore, to accommodate users of different heights, the pull rod 14 is an adjustable telescopic rod. For easy storage, the housing 1 may be provided with a slot to hold the pull rod 14 in place; when not in use, the pull rod can be inserted into the slot for storage.

[0023] Furthermore, a temperature sensor is provided in the refrigerator compartment, and a thermometer 15 is also provided on the cabinet 1. The controller is electrically connected to the temperature sensor and the thermometer 15.

[0024] Furthermore, the upper cover 2 may be provided with a transparent window 22 to facilitate observation of the sample inside the chamber. The transparent window is made of double-layer vacuum glass to reduce interference with the temperature inside the chamber.

[0025] Furthermore, the upper cover 2 can also be provided with a small sliding door 23 that connects to the cold storage compartment. By simply opening the small sliding door 23, medical staff can easily put in and take out samples, which can reduce interference with the temperature of the cold storage compartment inside the box.

[0026] Furthermore, the refrigerated compartment is equipped with a blood collection specimen rack, which includes a connecting frame 41 and a top plate 42 and a bottom plate 43 connected to the connecting frame 41. The connecting frame 41 is provided with a connecting buckle or a connecting positioning part 44 that cooperates with the housing. In this embodiment, the connecting positioning part 44 adopts a vertically arranged convex rail, so that the blood collection specimen rack can be placed vertically in the refrigerated compartment along the convex rail. The top plate 42 is provided with a handle for easy installation of the blood collection specimen rack. In other embodiments, the connecting frame 41 can also be detachably installed in the refrigerated compartment by means of screw connection, buckle engagement, pin connection, etc. The top plate 42 has several through holes 401 adapted to blood collection tubes. The bottom plate 43 has several arc-shaped grooves 402 adapted to the bottom of the blood collection tubes, corresponding to each through hole 401. Each through hole 401 and arc-shaped groove 402 has a shock-absorbing piece 403. The top plate 42 also has a movable pressure plate 404 for pressing the blood collection tubes, corresponding to each through hole 401. Through the through holes 401, arc-shaped grooves 402, shock-absorbing pieces 403, and movable pressure plates 404, the blood collection tubes are secured and protected from all angles. This ensures that even if the blood collection tubes are bumped during transport, the shock-absorbing pieces 403 and movable pressure plates 404 can effectively protect them and prevent damage to the blood sample. In this embodiment, the movable pressure plate 404 is made of elastic band, and both ends of the elastic band are fixed to the top plate 42 with buttons or Velcro, allowing for easy placement and fixation of the blood collection tubes even with one hand. In other embodiments, the movable pressure plate 404 can also be a longitudinally sliding pressure plate to block the entire row or column of through holes 401, or a rotatable pressure plate can be set between the through holes 401 to fix the upper end of the blood collection tube.

[0027] The above description is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the scope of the present utility model patent application and the description of the utility model shall still fall within the scope of the present utility model patent.

Claims

1. A portable refrigerator, characterized in that, The device includes a cabinet and a top cover. The cabinet contains a refrigerator compartment, a refrigeration module, and a controller. The cabinet also has a power socket and at least two battery slots. A battery can be detachably installed in each battery slot. All the batteries are connected in parallel. The controller is electrically connected to the batteries and the refrigeration module. The bottom left side of the cabinet has casters, and the right side of the cabinet has a pull rod.

2. A portable refrigerator according to claim 1, characterized in that, The enclosure is also equipped with a charging port.

3. A portable refrigerator according to claim 1, characterized in that, The rear end of the top cover is connected to the box body via a hinge, and the front end of the top cover is provided with a handle groove for easy opening.

4. A portable refrigerator according to claim 1, characterized in that, One end of the pull rod is hinged to the box body, and the other end of the pull rod is provided with a pull ring.

5. A portable refrigerator according to claim 1, characterized in that, The pull rod is an adjustable telescopic rod.

6. A portable refrigerator according to claim 4 or 5, characterized in that, The housing is provided with a slot to hold the pull rod in place.

7. A portable refrigerator according to claim 1, characterized in that, The refrigerated compartment is equipped with a blood collection specimen rack, which includes a connecting frame and a top plate and a bottom plate connected to the connecting frame. The connecting frame is provided with a connecting buckle or a connecting positioning part that cooperates with the box body. The top plate is provided with several through holes adapted to blood collection tubes. The bottom plate is provided with several arc-shaped grooves adapted to the bottom of the blood collection tubes at the position of each of the through holes. Each of the through holes and arc-shaped grooves is provided with a shock-absorbing piece. The top plate is also provided with a movable pressure piece for pressing the blood collection tubes at the position of each of the through holes.

8. A portable refrigerator according to claim 7, characterized in that, The movable pressure plate is made of elastic band, and the two ends of the elastic band are fixed to the top plate by buttons or Velcro.

9. A portable refrigerator according to claim 1, characterized in that, The refrigerator compartment is equipped with a temperature sensor, and the cabinet is also equipped with a thermometer. The controller is electrically connected to the temperature sensor and the thermometer.

10. A portable refrigerator according to claim 1, characterized in that, The upper surface of the cover is provided with a transparent window, which is made of double-layer vacuum glass.