Insulin refrigeration device
By combining semiconductor refrigeration and medical hydrogel in an insulin refrigeration device, the problems of refrigeration efficiency, temperature stability and portability of portable refrigeration devices have been solved, achieving efficient and stable insulin storage that is suitable for diverse usage scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-04-14
AI Technical Summary
Existing portable insulin refrigeration devices suffer from problems such as insufficient cooling efficiency and temperature stability, reliance on power supply, improper management of condensate, and unstable fixation of insulin pens, failing to meet the needs of prolonged power outages and diverse usage scenarios.
It adopts a semiconductor cooling structure combined with a stainless steel inner liner filled with medical hydrogel, is equipped with a patch-type temperature sensor and controller, has a compact insulin pen fixing structure, has a USB-C or Micro-USB charging interface, and the outer shell is equipped with an insulation layer and water guiding holes to achieve efficient and stable cooling and intelligent temperature control.
It achieves efficient and stable cooling within the range of 2-8℃, extends the refrigeration time during power outages, ensures the efficacy of insulin, improves portability and heat preservation performance, prevents condensation buildup, and adapts to diverse usage scenarios.
Smart Images

Figure CN224121461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of insulin storage box technology, and more specifically, to an insulin refrigeration device. Background Technology
[0002] Insulin, a crucial medication for daily treatment of diabetes, has strict storage requirements and typically needs to be stored at a low temperature of 2-8°C to ensure its biological activity is not compromised. In the home, patients usually store insulin in household refrigerators. However, with the diversification of lifestyles, especially the increasing frequency of outings, travel, or situations without refrigeration, the demand for portable insulin refrigeration devices is gradually emerging. Currently, portable refrigeration devices on the market mainly include two types: small refrigerators based on compressor cooling and refrigerator boxes using semiconductor cooling.
[0003] Traditional compressor-based refrigeration devices, while offering good cooling performance, are bulky, heavy, and require a stable external power source, making them unsuitable for portable use. Semiconductor refrigeration technology, with its advantages of no refrigerant, no moving mechanical parts, and compact structure, has been widely adopted in portable refrigeration devices in recent years. However, existing semiconductor refrigeration boxes still have some shortcomings: First, cooling efficiency and temperature stability are limited by heat dissipation conditions, making them susceptible to degradation due to increased ambient temperatures; second, most devices rely on a power source, and once the battery is depleted, the refrigeration function quickly fails, failing to meet the needs of prolonged power outages; third, the way insulin pens are secured is not robust enough, making them prone to displacement or even damage during movement.
[0004] Furthermore, existing technologies rarely consider condensate management. Condensate generated during the refrigeration process may accumulate inside the device, affecting the insulin storage environment and even causing equipment malfunction. Meanwhile, the insulation performance and intelligence of portable devices need improvement to better adapt to different usage scenarios. Therefore, developing an insulin refrigeration device that combines efficient refrigeration, extended refrigeration during power outages, intelligent temperature control, and portability is an urgent technical challenge. Utility Model Content
[0005] The purpose of this invention is to provide an insulin refrigeration device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An insulin refrigeration device includes a refrigeration structure and an insulin pen fixing structure. The refrigeration structure includes a stainless steel inner liner and a semiconductor cooling structure. The stainless steel inner liner is hollow and its cavity is filled with medical hydrogel. A stainless steel partition is welded to the inner cavity of the stainless steel inner liner. A water guide hole is opened at one end of the stainless steel partition. Several sets of insulin pen fixing structures are arranged on the stainless steel partition. The stainless steel inner liner is placed inside the inner cavity of the outer shell. The semiconductor cooling structure is arranged inside the inner cavity of the outer shell and is magnetically connected to the bottom outer sidewall of the stainless steel inner liner.
[0008] As a preferred technical solution of this utility model, both ends of the stainless steel inner liner are provided with holes for injecting medical hydrogel, and the holes are provided with sealing plugs.
[0009] As a preferred technical solution of this utility model, the semiconductor cooling structure includes a semiconductor cooling chip, a cooling fan, a magnet, and a battery. The cooling fan is disposed on the hot end sidewall of the semiconductor cooling chip, the magnet is disposed on the cold end sidewall of the semiconductor cooling chip, and the magnet is adsorbed and connected to the bottom outer sidewall of the stainless steel inner liner.
[0010] As a preferred technical solution of this utility model, the inner cavity of the outer shell is provided with a controller, which is connected to the battery, the cooling fan and the semiconductor refrigeration chip.
[0011] As a preferred technical solution of this utility model, the insulin pen fixing structure includes a plurality of C-shaped metal clips, and each insulin pen fixing structure includes two C-shaped metal clips.
[0012] As a preferred technical solution of this utility model, a patch-type temperature sensor is provided on the magnet sheet, and the patch-type temperature sensor is connected to the controller.
[0013] As a preferred technical solution of this utility model, the outer shell is provided with a lid, the edge of the lid is provided with a sealing ring, and both the lid and the inner wall of the outer shell are provided with a heat insulation layer.
[0014] The present invention is further configured such that both the lower plate and the connecting plate are hollow.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] This insulin refrigeration device achieves highly efficient and stable cooling performance through a semiconductor cooling structure and a stainless steel inner liner filled with medical hydrogel, maintaining the internal temperature within a suitable range of 2-8°C. Even when the battery is depleted, the medical hydrogel's high heat capacity extends the refrigeration time, ensuring the safe storage of insulin during power outages or transport. The intelligent temperature control function of the patch-type temperature sensor and controller further ensures temperature accuracy and stability, protecting the efficacy of insulin.
[0017] The device features a compact and portable design, with a charging port and battery inside the casing. It supports USB-C or Micro-USB charging, making it convenient for users to use when out and about or traveling. The C-shaped metal buckle securely holds the insulin pen in place, and the sealing ring on the lid and the insulation layer effectively insulate against external heat, improving heat retention. The drainage holes on the stainless steel partition are used to drain condensate, keeping the inside dry and enhancing the device's reliability and lifespan. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the stainless steel inner liner of this utility model;
[0020] Figure 3 This is a schematic diagram of the stainless steel partition of this utility model;
[0021] Figure 4 This is a schematic diagram of the principle structure of the semiconductor cooling structure of this utility model.
[0022] In the diagram: 1. Stainless steel inner liner; 2. Stainless steel partition; 3. Outer shell; 4. Semiconductor cooling structure; 41. Semiconductor cooling chip; 42. Cooling fan; 43. Magnet; 45. Battery; 5. Controller; 6. Surface mount temperature sensor; 7. C-shaped metal clip. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can clearly understand the technical solution of this utility model and implement it. It should be noted that the following description is only a part of the typical embodiments of this utility model, and not all possible implementations. Any improvement, equivalent substitution or adjustment based on this embodiment, as long as it does not deviate from the core spirit of this utility model, should be regarded as part of the protection scope of this utility model.
[0025] This embodiment provides an insulin refrigeration device designed to provide a portable and stable low-temperature storage environment for insulin pens, thereby ensuring the efficacy of insulin. The device will be described in detail below with reference to its specific structure.
[0026] This insulin refrigeration device includes a refrigeration structure and an insulin pen fixing structure. The refrigeration structure mainly consists of a stainless steel inner liner 1, an outer shell 3, and a semiconductor cooling structure 4. The stainless steel inner liner 1 is designed as a hollow structure, with its cavity filled with medical hydrogel to enhance cold storage and temperature stability. Holes for injecting the medical hydrogel are opened at both ends of the stainless steel inner liner 1, and each hole is fitted with a sealing plug to prevent leakage and maintain the liner's airtightness. A stainless steel partition 2 is welded into the inner cavity of the stainless steel inner liner 1, dividing the liner into multiple areas. One end of the partition has a drainage hole for draining condensate generated during the refrigeration process, preventing condensate buildup from affecting the internal environment of the device. Multiple insulin pen fixing structures are installed on the stainless steel partition 2. Each fixing structure includes two C-shaped metal clips 7 for securely holding the insulin pen, ensuring it does not shift during transportation or movement. The metal clips also have excellent thermal conductivity, rapidly reducing the temperature of the insulin pen.
[0027] A stainless steel inner liner 1 is installed inside the cavity of the outer shell 3. The outer shell 3 is made of high-strength plastic or metal and has good structural support. A semiconductor cooling structure 4 is also provided inside the cavity of the outer shell 3. This structure is connected to the bottom outer sidewall of the stainless steel inner liner 1 via magnetic attraction. The semiconductor cooling structure 4 includes a semiconductor cooling chip 41, a cooling fan 42, a magnet 43, and a battery 45. The cold end of the semiconductor cooling chip 41 is magnetically connected to the stainless steel inner liner 1 via the magnet 43 to efficiently transfer cooling. A cooling fan 42 is installed on the hot end sidewall to expel heat from the device, thus maintaining the cooling effect. The outer shell 3 has ventilation holes. A surface-mount temperature sensor 6 is also installed on the magnet 43 to monitor the temperature of the bottom of the stainless steel inner liner 1 in real time and transmit the data to the controller 5. The battery 45 provides power to the semiconductor cooling chip 41, the cooling fan 42, and the controller 5, ensuring that the device can still operate normally without an external power source. The housing 3 is also provided with a charging interface for charging the battery 45. This interface can adopt a universal standard such as USB-C or Micro-USB, so that users can charge the device with an external power adapter or power bank.
[0028] A controller 5 is also installed inside the cavity of the outer casing 3. The controller 5 is connected to the battery 45, cooling fan 42, thermoelectric cooler 41, and surface-mount temperature sensor 6 via wires. The controller 5 can adjust the working state of the thermoelectric cooler 41 and cooling fan 42 according to the feedback data of the temperature sensor 6, so as to maintain the internal temperature of the device within a suitable range for insulin storage (usually 2-8°C). The controller 5, battery 45, and cooling fan 42 are all located at the bottom of the inner cavity of the outer casing 3, and a partition is provided above them to prevent condensation from dripping and damaging these electrical devices.
[0029] To further enhance the refrigeration effect, a lid is provided on the outer casing 3, which is connected to the outer casing 3 by hinges or buckles. A sealing ring is embedded at the edge of the lid to ensure the internal seal of the device when closed, preventing cold air leakage. Both the lid and the inner wall of the outer casing 3 are equipped with an insulation layer, which can be made of materials such as polyurethane foam or vacuum insulation panels, effectively reducing the impact of external temperature on the internal environment, thereby extending the storage time of insulin.
[0030] In use, the user first injects medical hydrogel through the holes at both ends of the stainless steel inner liner 1, and then seals the openings with sealing plugs. The insulin pen is then inserted into the C-shaped metal clip 7 for fixation. After closing the lid, the device is started. The controller 5 automatically adjusts the operating state of the semiconductor cooling structure 4 based on the monitoring data from the patch-type temperature sensor 6, ensuring the internal temperature of the stainless steel inner liner 1 remains stable within the set range. The cooling fan 42 dissipates heat, ensuring cooling efficiency. During the cooling process, moisture in the air may condense into condensate at the cold end, which is drained through the water guide holes on the stainless steel partition 2 to prevent water accumulation from affecting the device's operation. When the battery 45 is low on power, the user can connect an external power source to charge it via the charging port on the outer casing 3.
[0031] The insulin refrigeration device of this embodiment is compact and portable, making it suitable for diabetic patients to store insulin when out and about or traveling. Through the synergistic effect of the medical hydrogel and semiconductor cooling structure, it can maintain a low-temperature environment for extended periods. Furthermore, the insulin pen fixing structure and charging interface design further enhance its ease of use and practicality.
[0032] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An insulin refrigeration device, comprising a refrigeration structure and an insulin pen fixing structure, characterized in that, The refrigeration structure includes a stainless steel inner liner (1) and a semiconductor refrigeration structure (4). The stainless steel inner liner (1) has a hollow structure and its cavity is filled with medical hydrogel. A stainless steel partition (2) is welded to the inner cavity of the stainless steel inner liner (1). A water guide hole is opened at one end of the stainless steel partition (2). Several sets of insulin pen fixing structures are provided on the stainless steel partition (2). The stainless steel inner liner (1) is located in the inner cavity of the outer shell (3). The inner cavity of the outer shell (3) is provided with a semiconductor refrigeration structure (4). The semiconductor refrigeration structure (4) is magnetically connected to the bottom outer side wall of the stainless steel inner liner (1).
2. The insulin refrigeration device according to claim 1, characterized in that, Both ends of the stainless steel inner liner (1) are provided with holes for injecting medical hydrogel, and the holes are provided with sealing plugs.
3. The insulin refrigeration device according to claim 1, characterized in that, The semiconductor cooling structure (4) includes a semiconductor cooling chip (41), a cooling fan (42), a magnet (43), and a battery (45). The cooling fan (42) is disposed on the hot end sidewall of the semiconductor cooling chip (41), and the magnet (43) is disposed on the cold end sidewall of the semiconductor cooling chip (41). The magnet (43) is adsorbed and connected to the bottom outer wall of the stainless steel inner liner (1).
4. The insulin refrigeration device according to claim 1, characterized in that, The inner cavity of the outer casing (3) is provided with a controller (5), which is connected to a battery (45), a cooling fan (42), and a semiconductor cooling chip (41).
5. The insulin refrigeration device according to claim 1, characterized in that, The insulin pen fixing structure includes several C-shaped metal clips, and each insulin pen fixing structure includes 2 C-shaped metal clips (7).
6. The insulin refrigeration device according to claim 3, characterized in that, A patch temperature sensor (6) is provided on the magnet (43), and the patch temperature sensor (6) is connected to the controller (5).
7. The insulin refrigeration device according to claim 1, characterized in that, The outer shell (3) is provided with a lid, and a sealing ring is provided at the edge of the lid. Both the lid and the inner wall of the outer shell (3) are provided with a heat insulation layer.