Constant-temperature ice storage cabinet

Abstract

The utility model discloses a constant temperature cold storage cabinet which comprises a cabinet body, a semiconductor refrigeration device and a power supply control device, a cavity used for storing vaccines is arranged in the cabinet body, phase change cold storage layers are arranged on the wall surfaces of the cavity, and the semiconductor refrigeration device comprises a first radiating fin group and a semiconductor refrigeration end. The first radiating fin group is arranged outside the cabinet body, the semiconductor refrigeration end is respectively communicated with the cavity and the phase change cold storage layer, and the power supply control device is electrically connected with the semiconductor refrigeration device and provides two power supply modes of photovoltaic and commercial power for the semiconductor refrigeration device; the photovoltaic power supply mode and the commercial power supply mode are automatically switched through the power supply control device, so that energy loss is reduced, meanwhile, the phase change cold storage layers are arranged on the wall faces of the inner cavity of the cabinet body, store cold energy during semiconductor refrigeration and release the cold energy when the cold storage cabinet is powered off or at night to enable the cold storage cabinet to be kept at the constant temperature of 2-8 DEG C, and energy is saved. And vaccine damage caused by accidental power failure is avoided.

Description

Technical Field

[0001] The utility model relates to the field of medicine storage and transportation, in particular to a constant temperature cold storage cabinet. Background Art

[0002] Vaccines need to be stored in a space of 2-8℃. In the past, vaccines were stored in constant temperature freezers and freezers, but this storage method requires 24-hour uninterrupted power supply. Once a power outage occurs, only generators can be used to supply power. Any carelessness will cause damage to the vaccines. In addition, the vaccine consumes a lot of electricity, and high electricity bills must be paid every year.

[0003] In view of this, the development of a constant temperature cold storage cabinet that can not only solve the problem of vaccine storage in the event of a power outage but also reduce electricity consumption has a very broad application prospect. Utility Model Content

[0004] The purpose of the utility model is to provide a constant temperature cold storage cabinet, which includes a power supply control device, a phase change cold storage layer and a semiconductor refrigeration device. Photovoltaic power supply is used during the day, and mains power is used at night or when the photovoltaic power generation is insufficient, thereby achieving less or no use of mains power. At the same time, the phase change cold storage layer in the cold storage cabinet can store cold energy when the semiconductor refrigeration device is refrigerating, and release it when the cold storage cabinet is powered off or at night to keep the cold storage cabinet at a constant temperature of 2-8°C, solving the problem of vaccine storage in the event of a power outage, reducing the consumption of electricity, and saving electricity bills for users.

[0005] In order to achieve the above technical objectives, the utility model is implemented through the following technical solutions:

[0006] A constant temperature cold storage cabinet, comprising:

[0007] A cabinet, wherein a cavity for storing vaccines is provided inside the cabinet, and a phase-change cold storage layer is provided on the wall surface of the cavity;

[0008] A semiconductor refrigeration device, comprising a first heat dissipation fin group and a semiconductor refrigeration end, wherein the first heat dissipation fin group is arranged outside the cabinet, and the semiconductor refrigeration end is respectively connected to the cavity and the phase change cold storage layer;

[0009] A power supply control device is electrically connected to the semiconductor refrigeration device and provides two power supply modes, photovoltaic power supply and city power supply, for the semiconductor refrigeration device.

[0010] In this solution, the cold storage cabinet is powered by both photovoltaic and AC power. Photovoltaic power is used when the solar irradiance is good during the day, and AC power is used to supplement at night or when the photovoltaic power generation is insufficient, thereby reducing energy loss. At the same time, a cavity for storing vaccines is provided inside the cabinet, and the walls of the cavity are provided with a phase change cold storage layer. The phase change cold storage layer stores cold energy during semiconductor refrigeration, and releases it when the cold storage cabinet is powered off or at night, allowing the cold storage cabinet to maintain a constant temperature at 2-8°C, thereby avoiding damage to vaccines during unexpected power outages.

[0011] As a further technical solution of the constant temperature cold storage cabinet, a hollow top cover is provided on the top of the cabinet body, and the first heat dissipation fin group is arranged in the top cover to protect the heat dissipation fin group.

[0012] As a further technical solution of the constant temperature cold storage cabinet, a cooling fan is arranged at the side end of the top cover, and the first cooling fin group includes a plurality of cooling fins, and the plurality of cooling fins are evenly spaced in an array on the top of the cabinet body, and the gap direction between adjacent cooling fins is the same as the wind direction of the cooling fan, which is used to improve the heat dissipation efficiency of the cooling fins, thereby improving the cooling effect of the semiconductor refrigeration device.

[0013] As a further technical solution of the constant temperature cold storage cabinet, the semiconductor refrigeration end includes a plurality of cooling fin groups, each of the cooling fin groups includes a plurality of cooling fins, and the plurality of cooling fins are evenly spaced in an array at the top of the cavity. The cooling effect of the semiconductor refrigeration device is improved by the rapid cooling of the cooling fins.

[0014] As a further technical solution of the constant temperature cold storage cabinet, the semiconductor refrigeration end also includes a cold storage extension end, and the cold storage extension ends are respectively embedded in the phase change cold storage layer on the cavity wall to facilitate the phase change cold storage layer to store cold.

[0015] As a further technical solution of the constant temperature cold storage cabinet, a placement rack is also provided in the cavity, and the placement rack is provided with storage plates arranged at longitudinal intervals, and storage slots for storing vaccines are opened on the storage plates to prevent vaccines from colliding with each other and being damaged.

[0016] As a further technical solution of the constant temperature cold storage cabinet, the placement rack includes a frame body, and the frame body is connected to the cooling fins;

[0017] The interior of the frame is hollow, and the hollow interior of the frame is filled with a condensing agent, and the cold storage cabinet is efficiently kept at a constant temperature through the heat exchange between the condensing agent and the cooling fins.

[0018] As a further technical solution of the constant temperature cold storage cabinet, a limiting protrusion is provided on the top of the frame, and a limiting groove matching the limiting protrusion is formed between adjacent cooling fin groups. On the one hand, it can avoid shaking of the placement rack during transportation, and on the other hand, it can also increase the heat exchange area between the frame and the cooling fins.

[0019] As a further technical solution of the constant temperature cold storage cabinet, the bottom end of the cabinet is also provided with the semiconductor refrigeration device to further improve the heat preservation effect of the cold storage cabinet.

[0020] As a further technical solution of the constant temperature cold storage cabinet, a hollow bottom cover is provided on the outside of the semiconductor refrigeration device located at the bottom end of the cabinet body to protect the heat dissipation fin group.

[0021] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0022] The utility model provides a constant temperature cold storage cabinet, including a cabinet body, a semiconductor refrigeration device and a power supply control device. The cold storage cabinet automatically switches between photovoltaic and mains power supply modes through the power supply control device. Photovoltaic power supply is used when the solar irradiance is good during the day, and mains power is used to supplement at night or when the photovoltaic power generation is insufficient, thereby reducing energy loss. At the same time, a cavity for storing vaccines is provided inside the cabinet body, and a phase change cold storage layer is provided on the wall surface of the cavity. The phase change cold storage layer stores cold energy during semiconductor refrigeration, and releases it when the cold storage cabinet is powered off or at night to keep the cold storage cabinet at a constant temperature of 2-8°C, thereby avoiding damage to vaccines caused by unexpected power outages. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0024] Figure 1 This is a schematic diagram of the external structure of Example 1 of the utility model;

[0025] Figure 2 This is a schematic diagram of the internal structure of Embodiment 1 of the present utility model;

[0026] Figure 3 This is a schematic diagram of the structure of Example 1 of the utility model when the top cover is not installed;

[0027] Figure 4 This is a schematic diagram of the internal top structure of Example 1 of the utility model;

[0028] Figure 5 This is a schematic cross-sectional view of the structure of Embodiment 1 of the present utility model;

[0029] Figure 6 for Figure 5A schematic diagram of the enlarged structure marked A in the figure;

[0030] Figure 7 This is a schematic diagram of the external structure of Example 2 of the utility model;

[0031] Figure 8 This is a schematic diagram of the internal structure of Embodiment 2 of the present utility model;

[0032] Fig. 9 This is a schematic diagram of the structure of Example 2 of the utility model when the top cover and the bottom cover are not installed;

[0033] Fig.10 This is a cross-sectional structural schematic diagram of Embodiment 2 of the present utility model;

[0034] Fig.11 It is a structural schematic diagram of the placement rack;

[0035] Fig.12 It is a schematic diagram of the cross-sectional structure of the placement rack.

[0036] Marks and corresponding parts names in the attached drawings:

[0037] 1-top cover, 2-cabinet, 3-cooling fan, 4-cabinet door, 5-placing rack, 6-lock, 7-insulation layer, 8-first heat dissipation fin group, 9-cooling fins, 10-heat dissipation fins, 11-semiconductor refrigeration end, 12-phase change cold storage layer, 13-heat pipe, 14-storage plate, 15-cold storage extension end, 16-frame, 17-second heat dissipation fin group, 18-limiting groove, 19-bottom cover, 20-limiting protrusion. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0039] Example 1

[0040] This embodiment 1 provides a constant temperature cold storage cabinet, such as Figure 1-Figure 3 As shown, it includes a cabinet 2, a semiconductor refrigeration device and a power supply control device (not shown in the figure);

[0041] The cabinet 2 is provided with a cavity for storing vaccines, and a cabinet door 4 is provided at the opening of the cavity. The inner wall of the cabinet door 4 is provided with a heat preservation layer 7 matching the cavity opening, and the wall of the cavity is provided with a phase change cold storage layer 12;

[0042] The semiconductor refrigeration device includes a first heat dissipation fin group 8 and a semiconductor refrigeration end 11. The first heat dissipation fin group 8 is arranged outside the cabinet 2. The semiconductor refrigeration end 11 is respectively connected to the cavity and the phase change cold storage layer 12. The power control device is electrically connected to the semiconductor refrigeration device and provides photovoltaic and AC power supply for the semiconductor refrigeration device. Relays and photosensors are arranged inside the power control device, which can automatically switch between photovoltaic and AC power supply according to the on-site lighting conditions. In this embodiment, the power control device is a common power control system, such as a solar street light controller, which will not be described here.

[0043] Among them, see Figure 4-Figure 6 As shown, a hollow top cover 1 is provided on the top of the cabinet 2, and a first heat dissipating fin group 8 is provided in the top cover 1. Specifically, a heat dissipating fan 3 is provided on the side end of the top cover 1. The first heat dissipating fin group 8 includes a plurality of heat dissipating fins 10. The plurality of heat dissipating fins 10 are evenly spaced in an array on the top of the cabinet 2, and the gap direction between adjacent heat dissipating fins 10 is the same as the wind direction of the heat dissipating fan, which is dissipated to the external space through the hollow top cover 1, so as to improve the heat dissipation efficiency of the heat dissipating fins 10, thereby improving the cooling effect of the semiconductor refrigeration device.

[0044] Please refer to Figure 4-Figure 6 As shown, the semiconductor refrigeration end 11 includes a plurality of cooling fin groups, each cooling fin group includes a plurality of cooling fins 9, and the plurality of cooling fins 9 are evenly spaced in an array at the top of the cabinet cavity. When in use, the cold energy generated by the semiconductor refrigeration device is dissipated to the cabinet cavity through the cooling fins 9.

[0045] In this embodiment, in order to make the phase change cold storage layer 12 store cold more efficiently, Figure 5 and Figure 6 As shown, the semiconductor refrigeration end 11 also includes a cold storage extension end 15, which is respectively embedded in the phase change cold storage layer 12 on the cavity wall and directly contacts the phase change cold storage material in the phase change cold storage layer 12 to achieve the purpose of quickly storing cold.

[0046] In some embodiments, in order to improve the preservation effect of the vaccine, Figure 5 , Fig.11 and Fig.12 As shown, a storage rack 5 is also provided in the cavity, and the storage rack 5 is provided with a plurality of storage plates 14 arranged at intervals along the longitudinal direction. Storage grooves for storing vaccines are opened on the storage plates 14, and buffer pads are filled in the storage grooves to prevent vaccines from colliding with each other and being damaged.

[0047] In some embodiments, in order to further improve the heat preservation effect of the vaccine, the above-mentioned placement rack 5 includes a frame 16, which is connected to the cooling fins 9, and the interior of the frame 16 is hollow, and the hollow interior of the frame 16 is filled with a condensing agent, through which the condensing agent and the cooling fins 9 exchange heat; at the same time, a limiting protrusion 20 is provided on the top of the frame 16, and a limiting groove 18 matching the limiting protrusion 20 is formed between adjacent cooling fin groups. On the one hand, it avoids the shaking of the placement rack 5 during transportation, and on the other hand, it can also increase the heat exchange area between the frame 16 and the cooling fins 9, thereby efficiently maintaining a constant temperature in the cold storage cabinet.

[0048] Example 2

[0049] This embodiment 2 further provides a constant temperature cold storage cabinet based on the technical solution of embodiment 1, such as Figure 7-Figure 10 As shown, the difference is that the bottom end of the cabinet 2 is also provided with a semiconductor refrigeration device that is the same as the top end, and the second heat dissipation fin group 17 of the semiconductor refrigeration device (the second heat dissipation fin group 17 has the same structure as the first heat dissipation fin group 8) is also provided with a hollow bottom cover 19 on the outside, and is also provided with a semiconductor refrigeration end 11 and a heat dissipation fan 3. The semiconductor refrigeration end 11 also includes a plurality of heat dissipation fin groups and a cold storage extension end 15, and a limiting protrusion 20 is also provided at the bottom end of the frame 16, and a limiting groove 18 matching the limiting protrusion 20 is also formed between adjacent heat dissipation fin groups at the bottom. The cold storage extension ends 15 at the bottom end of the cabinet 2 are respectively embedded in the phase change cold storage layer 12 on the cavity wall, and the end of the cold extension end 15 at the bottom end is in contact with the end of the cold extension end 15 at the top end, thereby covering the entire inner cavity wall of the cavity except the opening, thereby achieving a better cold storage effect.

[0050] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A constant temperature cold storage cabinet, characterized in that: include: A cabinet (2), wherein a cavity for storing vaccines is provided inside the cabinet (2), and a phase-change cold storage layer is provided on the wall surface of the cavity; A semiconductor refrigeration device, comprising a first heat dissipation fin group (8) and a semiconductor refrigeration end (11), wherein the first heat dissipation fin group (8) is arranged outside the cabinet (2), and the semiconductor refrigeration end (11) is respectively connected to the cavity and the phase change cold storage layer; A power supply control device is electrically connected to the semiconductor refrigeration device and provides two power supply modes, photovoltaic power supply and city power supply, for the semiconductor refrigeration device.

2. A constant temperature cold storage cabinet according to claim 1, characterized in that: The top of the cabinet (2) is provided with a hollow top cover (1), and the first heat dissipation fin group (8) is arranged in the top cover (1).

3. A constant temperature cold storage cabinet according to claim 2, characterized in that: A cooling fan (3) is provided at the side end of the top cover (1); the first cooling fin group (8) comprises a plurality of cooling fins (10); the plurality of cooling fins (10) are arranged in an array evenly spaced apart on the top of the cabinet (2); and the direction of the gaps between adjacent cooling fins (10) is the same as the wind direction of the cooling fan (3).

4. A constant temperature cold storage cabinet according to any one of claims 1 to 3, characterized in that: The semiconductor refrigeration end (11) comprises a plurality of cooling fin groups, each of the cooling fin groups comprises a plurality of cooling fins (9), and the plurality of cooling fins (9) are arranged in an array evenly spaced apart at the top of the cavity.

5. A constant temperature cold storage cabinet according to claim 4, characterized in that: The semiconductor refrigeration end (11) further comprises a cold storage extension end (15), and the cold storage extension ends (15) are respectively embedded in the phase change cold storage layer on the wall surface of the cavity.

6. A constant temperature cold storage cabinet according to claim 4, characterized in that: A storage rack (5) is also provided in the cavity. The storage rack (5) is provided with storage plates (14) spaced apart in the longitudinal direction. Storage slots for storing vaccines are provided on the storage plates (14).

7. A constant temperature cold storage cabinet according to claim 6, characterized in that: The placement rack (5) comprises a frame body (16), and the frame body (16) is connected to the cooling fins (9); The interior of the frame (16) is hollow, and the hollow interior of the frame (16) is filled with a condensing agent.

8. The constant temperature cold storage cabinet according to claim 7, characterized in that: A limiting protrusion (20) is provided at the top of the frame (16), and a limiting groove (18) matching the limiting protrusion (20) is formed between adjacent cooling fin groups.

9. A constant temperature cold storage cabinet according to claim 8, characterized in that: The bottom end of the cabinet (2) is also provided with the semiconductor refrigeration device.

10. The constant temperature cold storage cabinet according to claim 9, characterized in that: A hollow bottom cover (19) is arranged on the outside of the semiconductor refrigeration device located at the bottom end of the cabinet (2).

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