WO2018233611A1

WO2018233611A1 - Portable refrigeration box

Info

Publication number: WO2018233611A1
Application number: PCT/CN2018/091869
Authority: WO
Inventors: 谢勇; 郑明权; 邹斌; 胡灯武
Original assignee: 多美达瑞典有限公司
Priority date: 2017-06-19
Filing date: 2018-06-19
Publication date: 2018-12-27
Also published as: CN207081259U

Abstract

A portable refrigeration box comprises a box body (1), a refrigeration assembly (2), and a cover plate (3). The box body (1) comprises a substrate (11) and an outer frame (12). A front side of the substrate (11) is inwards recessed to form an inner container (111), and the outer frame (12) surrounds along the sides of the substrate (11). The refrigeration assembly (2) is located in a space defined by the back of the substrate (11) and the outer frame (12), and is used for refrigerating the outer wall of the inner container (111). The cover plate (3) is located on the front side of the box body (1) and comprises a fixed portion (31) and a movable door (32), and the fixed portion (31) is fixed to the box body (1). The movable door (32) covers the front side of the inner container (111), and an inner side thereof and the inner container (111) are sealed. The movable door (32) and the fixed portion (31) are connected by means of flexible glue. The fixed portion (31) of the cover plate (3) is fixed to the box body (1), and the heat preservation effect of the inner container (111) is maintained by means of the cooperation between the movable door (32) and the inner container (111).

Description

Portable refrigeration box

Technical field

The utility model relates to the technical field of refrigeration equipment, in particular to a portable refrigeration box.

Background technique

Some items, especially drugs (such as insulin), need to be stored at low temperatures to ensure stable drug performance and avoid failure. For such drugs, it is necessary to use a portable refrigeration box or the like for refrigerating storage when going out. The refrigeration box generally includes a casing in which a liner is disposed, and the liner is used to accommodate articles that need to be refrigerated. The cover is provided with a cover plate, and the cover plate is insulated with the inner casing.

The cover of the existing refrigeration box is generally connected to the casing by direct integral disassembly, such as by snapping to the casing. When you need to open the cooling box, remove the cover directly. In this way, the cover plate needs to be completely removed, and it is not convenient to open and close the cover plate.

Utility model content

The purpose of the utility model is to provide a portable refrigeration box, which has the movable door opened and closed conveniently, and can cooperate well with the inner tank.

To this end, the utility model adopts the following technical solutions:

A portable refrigeration box comprising:

The box includes:

a substrate, the front side is recessed inward to form a liner;

An outer frame surrounding the side of the substrate;

a refrigeration assembly located in a space enclosing the back surface of the substrate and the outer frame for cooling an outer wall of the inner casing;

a cover plate on a front side of the casing, the cover plate comprising:

a fixing portion fixed to the box body;

The movable door is closed to the front surface of the inner casing, and the inner side is sealed with the inner casing, and the movable door and the fixing portion are connected by a soft rubber.

Further, the movable door is formed by two-color injection molding from the outer soft rubber and the inner hard plastic, and the outer soft rubber extends to the outer side of the fixing portion.

Further, an inner layer of the movable door is inwardly convexly provided with an insulating layer.

Further, a sealing strip is disposed on an inner side of the movable door, the sealing strip sequentially surrounds an outer peripheral surface of the heat insulating layer, a convex portion is protruded from an outer side of the inner casing, and the movable door is closed to the inner casing On the front side, the projections are inserted between the weather strips.

Further, the refrigerating assembly is located in a space enclosed by the outer frame and the outer side of the side wall of the inner casing, and the refrigerating assembly comprises:

a semiconductor refrigeration sheet having a cold end abutting against an outer wall of the inner casing;

a heat sink having one end abutting the hot end of the semiconductor cooling sheet and the other end being provided with heat dissipating fins;

A control assembly is located on one side of the heat sink and is electrically connected to the semiconductor cooling fin.

Further, the refrigeration component further includes:

a heat dissipation fan is electrically connected to the control component, the air inlet of the heat dissipation fan faces the heat dissipation fin, the air outlet faces the outer frame, and the position of the outer frame facing the air outlet and the control Vents are provided in the vicinity of the assembly.

Further, a plurality of the heat dissipating fins are arranged in parallel on the heat sink, and air passages are formed between the adjacent heat dissipating fins, and the control component and the heat dissipating fan are respectively located in the air duct. Different sides.

Further, a temperature sensor is attached to an outer wall of the inner casing, and a display screen and a button module are fixed on an outer side of the fixing portion, and the temperature sensor, the display screen and the button module are both controlled by the control The components are electrically connected.

Further, a backplane is fixed on a back surface of the box body, and the bottom plate is recessed inwardly to form a battery compartment, an output end of the battery compartment is electrically connected to the control component, and the control component is located in the battery compartment and the Between the cover plates.

Advantageous Effects: The present invention provides a portable refrigeration box including a casing, a refrigeration assembly and a cover. The casing includes a substrate and an outer frame, the front surface of the substrate is recessed inwardly to form a liner, and the outer frame is disposed along a side surface of the substrate; the refrigeration assembly is located in a space of the back surface of the substrate and the outer frame, and is used for Cooling the outer wall of the inner casing; the cover plate is located at the front side of the casing, the cover plate includes a fixing portion and a movable door, the fixing portion is fixed to the casing; and the movable door is closed to the front surface of the inner casing The inner side is sealed with the inner casing, and the movable door and the fixing portion are connected by a soft rubber. The refrigeration unit in the casing cools the inner casing and maintains the contents of the inner casing in a stable low temperature environment. The fixing portion of the cover plate is fixed to the box body, and cooperates with the inner tank through the movable door to maintain the heat preservation effect of the inner tank. When in use, the movable door can be directly opened or closed, and the entire cover plate does not need to be removed, which is convenient to use. The soft part is connected between the fixed part and the movable door. Compared with the connecting piece made of a hard material such as a hinge, the soft rubber has better deformability, and the movable door can have more variation range, that is, The movable door has better adaptability to the inner liner, forms a good fit with the inner liner, and requires lower installation precision for the fixed portion.

DRAWINGS

1 is an exploded view of the portable refrigeration box provided by the present invention.

2 is a schematic structural view of a cover plate of a portable refrigeration box provided by the present invention.

3 is a schematic structural view of a casing of a portable refrigeration box provided by the present invention.

4 is an exploded view 2 of the portable refrigeration box provided by the present invention.

Figure 5 is an assembled view of the portable refrigeration box provided by the present invention.

among them:

1-box, 11-substrate, 111-liner, 12-outer frame, 121-vent, 2-refrigeration unit, 21-semiconductor refrigerating sheet, 22-heat sink, 221-heat dissipating fin, 23-control unit ,24-heating fan,3-cover,31-fixing,32-moving door,321-insulation,322-seal,41-display,42-button module,5-floor,51-battery .

Detailed ways

In order to make the technical problems, the technical solutions, and the technical effects achieved by the present invention more clear, the technical solutions of the present invention will be further described below with reference to the accompanying drawings.

As shown in FIG. 1 to FIG. 5, the utility model provides a portable refrigeration box, which comprises a box body 1, a refrigeration assembly 2 and a cover plate 3. The casing 1 includes a substrate 11 and an outer frame 12. The front surface of the substrate 11 is recessed inwardly to form a liner 111. The outer frame 12 is surrounded by the side surface of the substrate 11. The substrate can be made of an aluminum plate or the like, and the weight is relatively light and firm. The refrigeration unit 2 is located in the space surrounded by the rear surface of the substrate 11 and the outer frame 12 for cooling the outer wall of the inner casing 111. The cover plate 3 is located on the front surface of the casing 1. The cover plate 3 includes a fixing portion 31 and a movable door 32. The fixing portion 31 is fixed to the casing 1. The movable door 32 covers the front surface of the inner casing 111, and the inner side is sealed with the inner casing 111. The movable door 32 and the fixing portion 31 are connected by a soft rubber.

The portable refrigeration box of the present invention cools the outer wall of the inner liner 111 through the refrigeration unit 2, and maintains the contents of the inner casing 111 and the inner casing at a suitable temperature. The fixing portion 31 of the cover plate 3 is fixed to the casing 1, and is engaged with the inner casing 111 through the movable door 32 to maintain the heat insulating effect of the inner casing 111. In use, the movable door 32 can be directly opened or closed, and the entire cover plate 3 does not need to be removed, and is convenient to use compared with the manner in which the cover plate 3 is integrally removed. The fixing portion 31 and the movable door 32 are connected by a soft rubber, and the soft rubber has better deformability than the connecting member made of a hard material such as a hinge, and the position of the fixing portion 31 is fixed. The movable door 32 can have more variation range. Therefore, the movable door 32 has better adaptability to the inner liner 111 and can form a good fit with the inner liner 111. Such a structure also requires lower mounting accuracy for the fixing portion 31.

Specifically, the movable door 32 is formed by two-color injection molding from the outer soft rubber and the inner hard plastic, and the inner rigid plastic may be a polycarbonate (PC) or the like to form the basic structure of the movable door 32, and keeps the activity. The basic shape of the door 32. The soft rubber may be a thermoplastic elastomer (TPE) or the like, and the outer soft rubber extends to the outside of the fixing portion 31 to seamlessly connect the fixing portion 31 and the movable door 32. In addition, the soft gel feels soft and can be used on the outside to enhance the experience. The outer side of the soft rubber can also be provided with anti-slip lines to further enhance the experience. The movable door 32 can be integrally formed by two-color injection molding, and no other assembly process is required, which simplifies the production process and the subsequent assembly process. The inner side of the movable door 32 is convexly provided with an insulating layer 321 inward to form a better heat insulation effect and maintain a good heat preservation effect. The insulating layer 321 can be formed by foaming on the inside of the movable member 32.

In order to improve the sealing property between the movable door 32 and the inner liner 111 and improve the heat insulating effect, the inner side of the movable door 32 of the present invention is provided with a sealing strip 322 surrounding the outer peripheral surface of the heat insulating layer 321 and the outer side of the inner casing 111. When the movable door 32 is attached to the front surface of the inner casing 111, the convex portion abuts against the side surface of the weather strip 322 to form a seal, thereby improving the heat insulating effect.

The refrigeration unit 2 of the present invention is located in a space enclosed by the outer side of the outer frame 12 and the side wall of the inner casing 111. The refrigeration unit 2 and the inner casing 111 are arranged side by side, and the main components are all laid flat, and the whole box body 1 is flat. Easy to carry. The refrigeration assembly 2 includes a semiconductor refrigeration sheet 21, a heat sink 22, and a control assembly 23. The semiconductor refrigerating sheet 21 is a refrigerating sheet made by utilizing the Peltier effect of a semiconductor material. When direct current is passed through two different semiconductor materials in series, the heat can be absorbed and the heat is released at both ends of the galvanic couple. The heat absorbing end is cold end and externally cooled; the heat releasing end is hot end, and is externally placed. heat. The cold end of the semiconductor refrigerating sheet 21 abuts against the outer wall of the inner liner 111 to cool the outer wall of the inner liner 111. One end of the heat sink 22 is in contact with the hot end of the semiconductor refrigerating sheet 21, and the other end is provided with heat dissipating fins 221, and the heat dissipating fins 221 are used to increase the heat dissipating area, thereby improving the heat dissipating effect. The control unit 23 is located on one side of the heat sink 22 and is electrically connected to the semiconductor refrigerating sheet 21. The control unit 23 controls the semiconductor refrigerating sheet 21 to control the temperature in the inner tank 111.

The cooling unit 2 further includes a cooling fan 24, and the cooling fan 24 is electrically connected to the control unit 23. The air inlet of the cooling fan 24 faces the heat dissipating fin 221, the air outlet faces the outer frame 12, and the outer frame 12 is positioned and controlled at the air outlet. A vent 121 is opened at a position near the assembly 23. The heat-dissipating fan drives the air to flow through the heat-dissipating fins 221, and takes away the heat on the heat-dissipating fins 221 to form a good heat-dissipating effect. The heat dissipating fins 221 on the heat sink 22 are generally arranged in parallel at intervals, and air passages are formed between the adjacent heat dissipating fins 221. The cooling unit 2 of the present invention can be provided with a cooling fan 24 and on different sides of the air duct. The control unit 23 and the cooling fan 24 are separately provided. When the cooling fan 24 is in operation, the air in the air duct is extracted, so that the air flows in from the other side of the air duct. The air flowing into the air passage passes through the control unit 23 to take away the heat generated by the control unit 23 in time to keep the control unit 23 stable. In order to further improve the effect, the number of the cooling fans 24 may be two, and the two cooling fans 24 and the control component 23 are respectively located on three sides of the air duct, and when the two cooling fans 24 are working, the air is exhausted from the air duct, and a large amount is discharged. The air enters the air duct from the side where the control unit 23 is located, while enhancing the heat dissipation of the heat sink 22 and the control unit 23.

The outer wall of the inner casing 111 of the portable refrigeration box of the present invention is attached with a temperature sensor for detecting the temperature of the inner casing 111. The display unit 41 and the button module 42 are fixed to the outer side of the fixed portion 31, and the display screen 41 is used for display. Related information, the button module 42 is used to input related information, such as temperature control, alarm control, time input, and the like. The temperature sensor, display 41 and button module 42 are all electrically coupled to control assembly 23. After the control unit 23 detects the current temperature of the inner tank 111 through the temperature sensor, it can be displayed on the display screen 41. In addition, the display screen 42 can also display information such as the electric quantity and the alarm clock. The control unit 23 is further provided with a storage unit, which can store the temperature value for a period of time, and the button module 42 can read the temperature at different time points on the display screen 41.

The portable refrigeration box is fixed with a bottom plate 5 on the back side of the casing 1. The bottom plate 5 is recessed inwardly to form a battery compartment 51. The output end of the battery compartment 51 is electrically connected to the control assembly 23, and the control assembly 23 is located in the battery compartment 51 and the cover 3. between. The height of the battery compartment 51 itself is relatively low. Therefore, the control assembly 23 is disposed between the battery compartment 51 and the cover 3 without greatly affecting the thickness of the casing 1. The compact layout can be formed by such a structure. Save space and reduce the volume of the box 1.

The above is only a preferred embodiment of the present invention. Those skilled in the art will have various changes in the specific embodiments and applications according to the idea of the present invention. The contents of this specification should not be construed as Limitations on the present invention.

Claims

A portable refrigeration box, comprising:

The box (1) includes:

a substrate (11), the front side is recessed inward to form a liner (111);

An outer frame (12) is disposed along a side of the substrate (11);

a refrigeration unit (2) located in a space surrounded by the back surface of the substrate (11) and the outer frame (12) for cooling an outer wall of the inner casing (111);

a cover plate (3) on the front side of the casing (1), the cover plate (3) comprising:

a fixing portion (31) fixed to the casing (1);

The movable door (32) is closed to the front surface of the inner casing (111), and the inner side is sealed with the inner casing (111), and the movable door (32) is connected with the fixing portion (31) by a soft rubber.
A portable refrigerating box according to claim 1, wherein said movable door (32) is injection molded by two-color injection of outer soft rubber and inner hard plastic, and outer soft rubber extends to said fixing portion (31) The outside.
The portable refrigerating box according to claim 2, wherein an inner layer of the movable door (32) is inwardly convexly provided with an insulating layer (321).
The portable refrigerating box according to claim 3, wherein a sealing strip (322) is disposed on an inner side of the movable door (32), and the sealing strip (322) surrounds an outer peripheral surface of the heat insulating layer (321). The outer side of the inner casing (111) has a protruding portion. When the movable door (32) is covered on the front surface of the inner casing (111), the protruding portion abuts against the side surface of the sealing strip (322). Pick up.
A portable refrigeration box according to any one of claims 1 to 4, wherein said refrigeration unit (2) is located outside said side wall (12) and said side wall of said inner casing (111) In the space, the refrigeration assembly (2) comprises:

a semiconductor refrigeration sheet (21) having a cold end abutting against an outer wall of the inner liner (111);

The heat sink (22) has one end abutting the hot end of the semiconductor refrigeration sheet (21), and the other end is provided with heat dissipating fins (221);

A control unit (23) is located on one side of the heat sink (22) and is electrically connected to the semiconductor cooling fin (21).
The portable refrigerating case of claim 5, wherein the refrigerating assembly (2) further comprises:

a cooling fan (24) electrically connected to the control component (23), the air inlet of the cooling fan (24) faces the heat dissipating fin (221), and the air outlet faces the outer frame (12), The outer frame (12) is provided with a vent (121) at a position facing the air outlet and a position near the control unit (23).
The portable refrigerating box according to claim 6, wherein a plurality of said heat dissipating fins (221) are arranged in parallel spaced apart on said heat sink (22), and said adjacent heat dissipating fins (221) The air duct is formed, and the control unit (23) and the heat dissipation fan (24) are respectively located on different sides of the air duct.
The portable refrigerating box according to claim 5, wherein a temperature sensor is attached to an outer wall of the inner casing (111), and a display screen (41) and a button module are fixed on an outer side of the fixing portion (31). (42) The temperature sensor, the display screen (41) and the button module (42) are all electrically connected to the control component (23).
The portable refrigerating box according to claim 5, wherein a bottom plate (5) is fixed to a back surface of the casing (1), and the bottom plate (5) is recessed inwardly to form a battery compartment (51). An output of the battery compartment (51) is electrically coupled to the control assembly (23), the control assembly (23) being located between the battery compartment (51) and the cover (3).