Breast milk refrigerator

Abstract

The present invention relates to a breast milk refrigeration device, comprising an inner liner, an outer shell, a semiconductor refrigerator, a cold conduction block and a heat dissipation component. The inner liner is provided with a chamber for installing a breast milk carrier. The inner liner is installed in the outer shell. The semiconductor refrigerator comprises a cold end face and a hot end face, the cold end face is in contact with the cold conduction block, the cold conduction block is in contact with the outer wall of the inner liner, and the heat dissipation component is arranged on the hot end face. When the above-mentioned breast milk refrigeration device is working, the hot end face of the semiconductor refrigerator diffuses the heat outward through the heat dissipation component, and the cold end face of the semiconductor refrigerator continuously conducts the cold energy to the inner liner through the cold conduction block, so that the inner liner continuously conducts the cold energy to the breast milk carrier installed in the chamber for a long time. In addition, the overall volume of the semiconductor refrigerator, the cold conduction block and the heat dissipation component after being combined on the outer shell is small, light in weight, and can be easily carried.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration devices, in particular to a breast milk refrigeration device. Background Art

[0002] Breastfeeding has always been the first choice for infant feeding from the perspective of nutrition and health. When the mother is not with the baby, for example, when the mother is unable to feed the baby after maternity leave, the breast milk needs to be squeezed out of the mother's body for storage, transportation and feeding. Generally, breast milk is squeezed out of the mother's body and stored in bags. After the breast milk is packaged and stored in bags, the current storage and transportation method is to place the breast milk carrier with emulsion and a pre-cooling storage device (such as a cooling device with built-in ice and / or cooling liquid) in an insulation bag with insulation function, and cool the breast milk with the help of the cold stored in the cooling device and continue the cold chain transmission during transportation. In the traditional storage and transportation method, since the cold comes from the cooling device, if it is easy to carry and store, it will be limited by volume and weight, resulting in a limited total cold storage capacity, so that the cold that can be consumed during the cooling and continuation of breast milk will gradually decrease over time, causing the temperature of the breast milk to fluctuate and change first and then rise. The longer the time, the more obvious the temperature rise effect. Summary of the invention

[0003] Based on this, it is necessary to overcome the defects of the prior art and provide a breast milk refrigeration device, which can continuously provide coldness for a long time so that the breast milk in the breast milk carrier is maintained within a preset temperature range, and is easy to carry, store and transport.

[0004] The technical solution is as follows: A breast milk refrigeration device, comprising: an inner tank, the inner tank being provided with a chamber for installing a breast milk carrier; an outer shell, the inner tank being installed in the outer shell; a semiconductor refrigerator, a cooling block and a heat dissipation component, the semiconductor refrigerator comprising a cold end face and a hot end face, the cold end face being in contact with the cooling block, the cooling block being in contact with the outer side wall of the inner tank, and the heat dissipation component being arranged on the hot end face.

[0005] When the above-mentioned breast milk refrigeration device is working, the hot end face of the semiconductor refrigerator diffuses the heat outward through the heat dissipation component, and the cold end face of the semiconductor refrigerator continuously transfers the cold to the inner tank through the cold conduction block, so that the inner tank continuously transfers the cold to the breast milk carrier installed in the chamber for a long time. In addition, the overall volume of the semiconductor refrigerator, the cold conduction block and the heat dissipation component after being combined on the outer shell is small and light, and can be easily carried.

[0006] In one of the embodiments, the shape of the end surface of the cooling block in contact with the cold end surface is adapted to the cold end surface; and the other end surface of the cooling block is in contact with the bottom of the inner tank.

[0007] In one of the embodiments, a first recess is provided on one side wall of the cooling block, and a second recess is provided on the other side wall of the cooling block; and / or a hollow hole is provided in the middle of the cooling block.

[0008] In one of the embodiments, one end surface of the cooling block is in close contact with the cold end surface, and the other end surface of the cooling block is in close contact with the outer wall of the inner tank; the end surface area of ​​the cooling block in contact with the cold end surface is smaller than the end surface area of ​​the cooling block in contact with the outer wall of the inner tank.

[0009] In one of the embodiments, a wing portion is formed by extending outward from a side surface of one end of the cooling block facing the inner tank.

[0010] In one embodiment, the breast milk refrigeration device also includes a connecting piece, the outer wall of the inner tank is provided with a first mounting portion and a second mounting portion, two ends of the connecting piece are respectively detachably mounted on the first mounting portion and the second mounting portion, and the wing portion is fixed between the connecting piece and the outer wall of the inner tank.

[0011] In one embodiment, the breast milk refrigeration device also includes an insulation layer, the bottom wall of the outer shell is provided with an installation opening, the cooling block is arranged in the outer shell, the semiconductor refrigerator is arranged at the installation opening, the heat dissipation component is located outside the outer shell, and the insulation layer is filled in the gap between the inner liner and the outer shell.

[0012] In one of the embodiments, the thermal insulation layer is a foamed thermal insulation layer; the outer shell includes a detachable partition, and the mounting port is arranged on the partition.

[0013] In one of the embodiments, the heat dissipation assembly includes a heat sink and a heat dissipation fan, the heat sink is in contact with the hot end surface, and the heat dissipation fan is used to dissipate the heat on the heat sink.

[0014] In one embodiment, the inner liner is provided with an opening connected to the chamber, the outer shell includes an openable cover body, the end face of the cover body is provided with an inner lining, the inner lining is provided with a boss, the outer side wall of the boss is a conical surface, and the inner side surface of the mouth of the outer shell is a concave surface adapted to the conical surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an exploded schematic diagram of a breast milk refrigeration device according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic structural diagram of an inner tank, a cooling block, a semiconductor refrigerator and a heat sink combined together according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic structural diagram of an inner tank and a cooling block combined together according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic structural diagram of a cooling block and a semiconductor refrigerator combined together according to an embodiment of the present invention;

[0019] Figure 5 It is a schematic diagram of air flow when the air outlet surface of the heat dissipation fan according to an embodiment of the present invention is inclined relative to the hot end surface;

[0020] Figure 6 It is a simplified schematic diagram of a cooling fan according to an embodiment of the present invention, in which the air outlet surface is tilted relative to the heat sink;

[0021] Figure 7 A schematic diagram of airflow when the air outlet surface of the heat dissipation fan according to an embodiment of the present invention is arranged sideways to the heat sink;

[0022] Figure 8 It is a schematic diagram of airflow when the air outlet surface of the heat dissipation fan according to an embodiment of the present invention is arranged directly facing the heat sink;

[0023] Fig. 9 This is a schematic diagram of the structure of a breast milk carrier according to an embodiment of the present invention;

[0024] Fig.10 It is a schematic structural diagram of an inner container according to an embodiment of the present invention;

[0025] Fig.11 This is a schematic diagram of a structure in which two breast milk carriers are installed in an inner container according to an embodiment of the present invention;

[0026] Fig.12 for Fig.11 A cross-sectional schematic diagram of one embodiment at AA;

[0027] Fig.13 for Fig.11 A cross-sectional schematic diagram of another embodiment at AA;

[0028] Fig.14 for Fig.11 A cross-sectional schematic diagram of another embodiment at AA;

[0029] Fig.15 This is a schematic diagram of a structure in which a temperature equalizing plate is installed in an inner container according to an embodiment of the present invention;

[0030] Fig.16 for Fig.15 Schematic cross-sectional view at BB.

[0031] Reference numerals:

[0032] 100, liner, 110, heat-conducting shell, 111, chamber, 112, first convex bulge, 113, second convex bulge, 114, opening, 115, smooth guide surface, 120, temperature averaging plate, 130, connector, 140, first mounting portion, 150, second mounting portion, 200, shell, 210, partition, 211, mounting port, 220, cover, 221, top cover, 222, board cover, 223, circuit board, 230, lining, 231, boss, 240, concave surface, 300, semiconductor refrigerator, 400, cooling block, 4 10. first recess, 420. second recess, 430. hollow hole, 440. wing, 441. groove, 500. breast milk carrier, 610. radiator, 611. heat sink, 612. fin plate, 6121. bevel, 620. cooling fan, 630. air guide plate, 710. insulation layer, 720. sealing ring, 730. insulation block, 810. bracket, 820. power supply, 830. control board, 840. protective cover, 841. first vent, 850. bottom cover, 851. second vent, 852. anti-slip mat. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0034] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the description of the present invention, it should be understood that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be intermediate elements at the same time. On the contrary, when an element is said to be "directly" connected to another element, there are no intermediate elements.

[0036] In one embodiment, see Figures 1 to 3A breast milk refrigeration device comprises an inner liner 100, an outer shell 200, a semiconductor refrigerator 300, a cooling block 400 and a heat dissipation component. The inner liner 100 is provided with a chamber 111 for installing a breast milk carrier 500. The inner liner 100 is installed in the outer shell 200. The semiconductor refrigerator 300 comprises a cold end face and a hot end face, the cold end face is in contact with the cooling block 400, the cooling block 400 is in contact with the outer side wall of the inner liner 100, and the heat dissipation component is arranged on the hot end face.

[0037] When the above-mentioned breast milk refrigeration device is working, the hot end surface of the semiconductor refrigerator 300 diffuses the heat outward through the heat dissipation component, and the cold end surface of the semiconductor refrigerator 300 continuously transfers the cold energy to the inner liner 100 through the cold conduction block 400, so that the inner liner 100 continuously transfers the cold energy to the breast milk carrier 500 installed in the chamber 111 for a long time. In addition, the overall volume of the semiconductor refrigerator 300, the cold conduction block 400 and the heat dissipation component after being combined on the housing 200 is small, light, and easy to carry.

[0038] For further information, see Figure 2 , the end surface shape of the cooling block 400 in contact with the cold end surface is adapted to the cold end surface. That is, the end surface area of ​​the cooling block 400 in contact with the cold end surface is the same as the cold end surface area. The other end surface of the cooling block 400 is in contact with the bottom of the inner tank 100. In this way, thermal short circuit between the cooling block 400 and the heat dissipation component can be avoided.

[0039] In one embodiment, see Figure 2 and Figure 3 , one side wall of the cooling block 400 is provided with a first recess 410, and the other side wall of the cooling block 400 is provided with a second recess 420. Specifically, the first recess 410 and the second recess 420 are semi-cylindrical. The sizes of the first recess 410 and the second recess 420 are set according to actual conditions, as long as they do not affect the cold transfer of the cooling block 400. This can reduce the weight of the cooling block 400 to a certain extent, thereby reducing the weight of the breast milk refrigeration device. In addition, the first recess 410 and the second recess 420 make the cooling block 400 a variable cross-section block, that is, the cross-sectional area of ​​the cooling block 400 first becomes smaller and then becomes larger in the direction from the semiconductor refrigerator 300 to the inner tank 100.

[0040] For further information, see Figure 4 The middle part of the cooling block 400 is provided with a hollow hole 430. The size of the hollow hole 430 is set according to the actual situation, as long as it does not affect the cold transfer of the cooling block 400, so that the weight of the cooling block 400 can be reduced to a certain extent, thereby reducing the weight of the breast milk refrigeration device.

[0041] In one embodiment, see Figure 2 One end surface of the cooling block 400 is in close contact with the cold end surface, and the other end surface of the cooling block 400 is in close contact with the outer wall of the inner liner 100. The end surface area S1 of the cooling block 400 in contact with the cold end surface is smaller than the end surface area S2 of the cooling block 400 in contact with the outer wall of the inner liner 100.

[0042] For further information, see Figures 1 to 3 , the side surface of one end of the cold conducting block 400 facing the inner liner 100 extends outward to form a wing 440. Specifically, both side surfaces of one end of the inner liner 100 extend outward to form a wing 440, and both wings 440 are connected to the inner liner 100 through the connector 130. The wing 440 increases the end surface area of ​​the cold conducting block 400 facing the inner liner 100 to a certain extent, so that the contact area between the cold conducting block 400 and the bottom outer wall of the inner liner 100 can be increased, and the thermal resistance of cold conduction can be reduced, so as to facilitate the cold conducting block 400 to conduct cold to the inner liner 100. In addition, it is beneficial to evenly conduct cold to the bottom of the inner liner 100 and enhance the refrigeration performance of the inner liner 100. In addition, the wing 440 can facilitate the connector 130 to connect the cold conducting block 400 and the inner liner 100 to each other and assemble them together.

[0043] In one embodiment, see Figures 1 to 3 The breast milk refrigeration device further includes a connector 130. The outer wall of the inner liner 100 is provided with a first mounting portion 140 and a second mounting portion 150, and the two ends of the connector 130 are detachably mounted on the first mounting portion 140 and the second mounting portion 150, respectively. The wing 440 is fixed between the connector 130 and the outer wall of the inner liner 100. The connector 130 is, for example, a steel belt, a copper belt, an aluminum belt, etc., and the ends of the connector 130 are detachably mounted on the first mounting portion 140 and the second mounting portion 150 by mounting members such as bolts and screws. The connector 130 is, for example, a steel wire rope or a plastic rope, and can also be directly tied to the first mounting portion 140 and the second mounting portion 150. Further, a groove 441 is provided on the side wall of the wing 440 facing away from the inner liner 100, and the connector 130 is arranged in the groove 441, so that the wing 440 can be stably mounted and fixed on the inner liner 100.

[0044] In one embodiment, please refer to Figure 1 and Figure 5 The breast milk refrigeration device further includes a heat preservation layer 710. The bottom wall of the shell 200 is provided with a mounting opening 211, the cooling block 400 is arranged in the shell 200, the semiconductor refrigerator 300 is arranged in the mounting opening 211, the heat dissipation component is located outside the shell 200, and the heat preservation layer 710 is filled in the gap between the inner liner 100 and the shell 200.

[0045] Furthermore, the thermal insulation layer 710 is a foamed thermal insulation layer 710. In this way, the pressure generated by the foaming process of the foamed thermal insulation layer 710 is applied to the wing 440 of the cooling block 400, so that the cooling block 400 and the bottom of the inner liner 100 are more tightly joined, reducing the thermal resistance of cold conduction; in addition, the foamed thermal insulation layer 710 makes the cooling block 400 and the inner liner 100 integrated into one, and the structure is more solid and reliable. Specifically, the housing 200 includes a detachable partition 210, and the mounting port 211 is provided on the partition 210.

[0046] In one embodiment, see Figure 1 and Figure 5 The heat dissipation component includes a heat sink 610 and a heat dissipation fan 620. The heat sink 610 is in contact with the hot end surface and is used to take away the heat on the hot end surface. The heat dissipation fan 620 is used to diffuse the heat on the heat sink 610. That is, the heat dissipation fan 620 drives the wind to flow through the heat sink 610, taking away the heat on the heat sink 610, and playing a heat dissipation role. The air outlet surface of the heat dissipation fan 620 can directly face the heat sink 610, can also be diagonally opposite to the heat sink 610, and can also use an air guide plate 630 to guide the air outlet of the heat dissipation fan 620 to flow through the heat sink 610.

[0047] For further information, please refer to Figure 1 The heat sink 610 includes a heat sink 611 and a plurality of fin plates 612 arranged at intervals on the heat sink 611. The heat sink 611 is used to contact the hot end surface. Specifically, the fin plate 612 is an aluminum fin or a copper fin, etc. In this way, the hot end surface of the semiconductor refrigerator 300 guides the heat to the heat sink 611, and the heat sink 611 guides the heat to the fin plate 612, which can achieve a better heat dissipation effect.

[0048] For further information, see Figure 1 , Figure 5 and Figure 6 , the side of the fin plate 612 facing away from the heat sink 611 is a bevel 6121 inclined relative to the plate surface of the heat sink 611, and the bevel 6121 contacts the air outlet surface of the heat dissipation fan 620. In this way, on the one hand, the air outlet surface of the heat dissipation fan 620 is closer to the radiator 610, which can better take away the heat from the radiator 610; on the other hand, the air outlet surface of the heat dissipation fan 620 contacts the bevel 6121 of the fin plate 612, which can reduce the effective thickness D of the heat dissipation fan 620 as much as possible. f cos a, thereby greatly reducing the total height of the heat dissipation assembly to D2, which is beneficial to reducing the size of the device and facilitating storage, transportation and carrying.

[0049] For further information, see Figure 1 , Figure 5 and Figure 6 The breast milk refrigeration device further includes a bracket 810, a power supply 820 and a control panel 830. The control panel 830 is electrically connected to the power supply 820, the semiconductor refrigerator 300 and the cooling fan 620 respectively. The radiator 610, the cooling fan 620, the power supply 820 and the control panel 830 are all mounted on the bracket 810. The power supply 820 is specifically a rechargeable battery or a storage battery, which provides power 820 for the control panel 830, and the control panel 830 controls the cooling fan 620 and the semiconductor refrigerator 300 to work.

[0050] See also Figure 1 , Figure 5 and Figure 6 The total height of the heat dissipation assembly is set to D2, and the thickness of the heat sink 610 is set to D s , the thickness and frame length of the cooling fan 620 are respectively set to D f With L f Furthermore, the air outlet surface of the cooling fan 620 is tilted relative to the hot end surface, and the tilt angle of the cooling fan 620 is set to a. Accordingly, D2 = D f cosa+D s Thus, as a increases from small to large, the thickness D of the heat sink 610 increases. s The value gradually decreases, which is beneficial to the thickness D of the heat sink 610 s The cooling fan 620 has a reduced heat dissipation wind resistance and a reduced noise. However, as the angle a increases, the heat dissipation area of ​​the cooling fan 620 also gradually decreases, and the fan elevation thickness L f sin a Fig. 9 ) increases, when L f sina>D s When the thickness D of the heat sink 610 is s The effective thickness D of the cooling fan 620 f cos a will be larger than the normal structure value, so the maximum value of a is Taking the above three factors into consideration, in this embodiment, the value range of a is specifically 5° to 45°.

[0051] With 9025 model cooling fan 620 (thickness D f 25mm, side length L f For example, when a=45°, the corresponding height D2 of the heat dissipation component is close to 63 mm. When the design thickness D of the heat sink 610 is s When the thickness D of the heat sink 610 is reduced, a needs to be further reduced. s, wind resistance, heat dissipation area, etc., and finally find the optimal value of a. When the height D2 of the heat dissipation component is smaller, the overall volume of the breast milk refrigeration device can be correspondingly smaller. In addition, since the heat dissipation fan 620 is set to blow sideways at an inclined angle a, on the basis of reducing the overall height, the airflow dead angle caused by direct blowing of the semiconductor radiator 610 is avoided (when blowing directly, the projection of the motor part of the heat dissipation fan 620 on the radiator 610 is generally located at the position of the semiconductor radiator 610, which happens to be the airflow dead zone of the heat dissipation fan 620), thereby improving the heat dissipation efficiency.

[0052] In this embodiment, the power supply 820 and the control board 830 are both located on the same side of the cooling fan 620, or the power supply 820 and the control board 830 are respectively located on different sides of the cooling fan 620. The purpose is to drive the flow of the side branch airflow through the main airflow at the bottom of the cooling fan 620, to play a certain heat dissipation role for the power supply 820, the control board 830, etc. placed on the side, which is conducive to the stability of the performance of the power supply 820. The entire airflow flow is shown in FIG. Figure 5 As shown, a compact solution is formed with main air inlet at the bottom, auxiliary air inlet at the side, and air outlet at the other side.

[0053] See also Figure 7 In a feasible embodiment, a is 90 degrees, the cooling fan 620 is arranged on the side of the radiator 610, and a wind guide plate 630 is provided on the bracket 810. The wind guide plate 630 is inclined relative to the hot end surface, and the wind guide plate 630 can guide the wind of the cooling fan 620 to the radiator 610.

[0054] See also Figure 8 In a feasible embodiment, a is 0 degrees, the air outlet surface of the cooling fan 620 faces the radiator 610, and the wind from the cooling fan 620 blows toward the radiator 610 and then flows to both sides to dissipate heat for the control board 830 and the power supply 820.

[0055] Please refer to Figure 1 Further, the control panel 830 is provided with a protective cover 840, a plurality of first vents 841 are provided on the side wall of the protective cover 840, and the protective cover 840 is mounted on the bracket 810. The protective cover 840 protects the control panel 830 and prevents the control panel 830 from being damaged.

[0056] Furthermore, the breast milk refrigeration device further includes a bottom cover 850, which is arranged at the bottom of the housing 200. The bracket 810, the radiator 610, the cooling fan 620, the power supply 820, the control board 830 and the protective cover 840 are all arranged in the bottom cover 850. The arrangement of the bracket 810, the radiator 610, the cooling fan 620, the power supply 820 and the control board 830 can reduce the volume of the bottom cover 850 as much as possible, so that it can be convenient to carry. In addition, a main vent is provided on the bottom wall of the bottom cover 850. When the cooling fan 620 is working, the outside air enters the bottom cover 850 through the main vent to dissipate heat and cool the radiator 610, the power supply 820 and the control board 830. In addition, a plurality of second vents 851 are provided on the side wall of the bottom cover 850 . When the cooling fan 620 is working, outside air can also enter the bottom cover 850 through the second vents 851 to dissipate heat and cool the radiator 610 , the power supply 820 and the control board 830 .

[0057] Further, a plurality of anti-skid pads 852 are provided at the bottom of the bottom cover 850. When the breast milk refrigeration device is placed on a desktop or a workbench, the anti-skid pads 852 play an anti-skid role.

[0058] In one embodiment, the inner liner 100 is provided with an opening 114 communicating with the chamber 111, and the outer shell 200 includes an openable cover 220, and the end surface of the cover 220 is provided with an inner liner 230, and the inner liner 230 is provided with a boss 231, and the outer side wall of the boss 231 is a conical surface, and the inner side surface of the mouth of the outer shell 200 is a concave surface 240 adapted to the conical surface. When the cover 220 is closed, the outer side surface of the boss 231 conflicts with the concave surface 240, which can improve the sealing performance and prevent the cold in the inner liner 100 from leaking out.

[0059] Furthermore, the breast milk refrigeration device further includes a sealing ring 720 disposed between the boss 231 and the inner liner 100. The sealing ring 720 can further improve the sealing performance and prevent the cold in the inner liner 100 from leaking out.

[0060] Furthermore, the breast milk refrigeration device further comprises a heat preservation block 730, which is detachably arranged at the opening of the inner liner 100, and the inner liner 230 is arranged circumferentially around the heat preservation block 730. In this way, after the cover 220 is closed, the top surface of the heat preservation block 730 contacts and cooperates with the bottom surface of the cover 220, and the bottom surface of the heat preservation block 730 is located at the opening of the inner liner 100, occupying an integral space, so as to prevent the outside hot air from entering and remaining at the mouth of the outer shell 200 during the opening and closing process of the cover 220, thereby improving the freezing performance of the breast milk refrigeration device, and also preventing condensation on the side wall of the outer shell 200.

[0061] In one embodiment, the cover body 220 includes a top cover 221, a plate cover 222 and a circuit board 223. The circuit board 223 is installed between the top cover 221 and the plate cover 222, and the plate cover 222 is detachably connected to the top cover 221. The circuit board 223 is electrically connected to the control board 830 through a wire. An alarm is provided on the circuit board 223. The breast milk refrigeration device also includes at least two temperature sensors electrically connected to the circuit board 223, one of which is used to sense the temperature of the hot end surface, and the other is used to sense the temperature of the breast milk in the breast milk carrier 500 in the inner tank 100. The alarm is used to perform an alarm action when the temperature in the inner tank 100 cannot be reduced to a preset temperature within a preset time period, and to perform an alarm action when the temperature of the hot end surface is too high. The alarm is also used to perform an alarm action when the semiconductor refrigerator 300 and the heat dissipation fan 620 are short-circuited. The alarm is also used to perform an alarm action when the temperature sensor fails.

[0062] Among them, the temperature sensor for sensing the temperature of the breast milk carrier in the inner liner 100 is attached to the side wall of the inner liner 300, and can more accurately sense the temperature of the breast milk carrier. In addition, when the temperature sensor and the breast milk carrier are respectively attached to the outer wall and the inner wall of the heat-conducting shell 310, the temperature sensor can more accurately sense the temperature of the breast milk carrier.

[0063] Furthermore, a display screen electrically connected to the circuit board 223 is provided on the top cover 221, and the display screen is used to display the temperature of the temperature sensor in real time. This is conducive to understanding the specific working conditions of the breast milk refrigeration device. Specifically, the display screen can be a touch screen. The working power of the semiconductor refrigerator 300 can be adjusted by touching the display screen, so as to adjust the cooling effect of the breast milk carrier 500 in the liner 100. Of course, a number of mechanical control buttons can also be provided on the top cover 221, and the working power of the semiconductor refrigerator 300 can be adjusted by the control buttons.

[0064] Generally, see Fig. 9 The breast milk carrier 500 is a square plastic bag that can flow and deform. After being filled with breast milk, the breast milk carrier 500 is flat with the thickness of the top gradually increasing toward the bottom, the thickness from the middle to the bottom remaining basically unchanged, and the height being greater than the thickness. In addition, the breast milk carrier 500 can also be a breast milk bottle or a breast milk box, etc.

[0065] In one embodiment, see Figures 10 to 16 The inner liner 100 includes a heat-conducting shell 110. The heat-conducting shell 110 is provided with a chamber 111 for accommodating the breast milk carrier 500, and one of the inner side walls of the heat-conducting shell 110 is formed with a first convex bump 112. The first convex bump 112 and the other inner side wall of the heat-conducting shell 110 are respectively in contact with two opposite outer side walls of the breast milk carrier 500.

[0066] The above-mentioned liner 100 encapsulates the breast milk carrier 500 filled with breast milk and places it into the chamber 111. The two opposite outer walls of the breast milk carrier 500 are respectively in contact with the inner wall of the heat-conductive shell 110. The breast milk carrier 500 and the heat-conductive shell 110 are in surface contact, avoiding the presence of air with low thermal conductivity between the breast milk carrier 500 and the heat-conductive shell 110, which is beneficial for the heat-conductive shell 110 to transfer cold to the breast milk carrier 500 to achieve efficient cold conduction. In this way, the temperature of the breast milk carrier 500 can be quickly reduced, and the cooling effect of the breast milk carrier 500 is better.

[0067] For further information, see Figures 10 to 12 , the other inner wall of the heat-conducting shell 110 is formed with a second convex hump 113. The second convex hump 113 is arranged opposite to the first convex hump 112, and the first convex hump 112 and the second convex hump 113 are respectively fitted with the two opposite outer walls of the breast milk carrier 500. In this way, on the one hand, the first convex hump 112 and the second convex hump 113 are respectively fitted with the two opposite outer walls of the breast milk carrier 500, and the surface is in close contact and fit, and the contact area is large, which reduces the conduction heat resistance from the heat-conducting shell 110 to the breast milk, which is conducive to the conduction of cold; on the other hand, the inner wall of the heat-conducting shell 110 is partially convex, resulting in the relative increase of the distance between the convex part and the outer shell 200 (filled with heat insulation material), reducing the heat leakage between the inner liner 100 and the outside; in addition, the inner wall of the heat-conducting shell 110 is partially convex to increase the mechanical strength of the wall surface, which can reduce the deformation of the inner liner 100 caused by the foaming process of the heat insulation material filled on the outside.

[0068] Furthermore, the top of the heat-conducting housing 110 is provided with an opening 114 connected to the chamber 111. The end surface of the first convex bump 112 facing the opening 114 is a smooth guide surface 115, and the end surface of the second convex bump 113 facing the opening 114 is a smooth guide surface 115. In this way, when the breast milk carrier 500 is placed into the chamber 111 through the opening 114, the smooth guide surface 115 plays a guiding role, which is conducive to the breast milk carrier 500 sliding into the gap between the first convex bump 112 and the second convex bump 113. When the breast milk carrier 500 slides into the gap between the first convex bump 112 and the second convex bump 113, the first convex bump 112 and the second convex bump 113 are respectively tightly attached to the two side walls of the breast milk carrier 500, so that the cold is well guided to the breast milk carrier 500.

[0069] In one embodiment, the first convex hump 112 is located at the middle of one inner side wall of the heat-conducting housing 110, and the second convex hump 113 is located at the middle of the other inner side wall of the heat-conducting housing 110. In this way, a gap is provided between the first convex hump 112 and the bottom wall of the heat-conducting housing 110 to form a recess; similarly, a gap is provided between the second convex hump 113 and the bottom wall of the heat-conducting housing 110 to form a recess, so that while ensuring that the first convex hump 112 and the second convex hump 113 can well guide the cold energy to the breast milk carrier 500, the material used for the liner 100 can be reduced as much as possible, thereby reducing the weight.

[0070] As an alternative, see Fig.13 The inner side wall of the heat-conducting housing 110 is only provided with the first convex hump 112 or only provided with the second convex hump 113 .

[0071] As an alternative, see Fig.14 The first convex bump 112 and the second convex bump 113 extend to the bottom wall of the heat-conducting housing 110 .

[0072] In one embodiment, the distance D1 between the wall surface of the first convex hump 112 and the wall surface of the second convex hump 113 is not greater than the distance D0 between two opposite outer side walls of the breast milk carrier 500 filled with breast milk when placed naturally.

[0073] Further, the distance D1 between the wall surface of the first convex bump 112 and the wall surface of the second convex bump 113 and the distance D0 between two opposite outer walls of the breast milk carrier 500 filled with breast milk when placed naturally satisfy the relationship: Δd=D0-D1, wherein Δd is 2mm to 3mm. In addition, D1 is 50mm, and the height H of the heat-conducting housing 110 is 105mm.

[0074] In one embodiment, the heat-conducting housing 110 is used to install more than two breast milk carriers 500 filled with breast milk, and the two or more breast milk carriers 500 are placed in sequence along the first convex bump 112. In this way, the two or more breast milk carriers 500 are placed in the heat-conducting housing 110 in a row and carried by the heat-conducting housing 110, so that the two or more breast milk carriers 500 can be carried; in addition, the two opposite outer side walls of the two or more breast milk carriers 500 are respectively tightly fitted with the first convex bump 112 and the second convex bump 113, and the first convex bump 112 and the second convex bump 113 can achieve good synchronous conduction of cold to the two or more breast milk carriers 500, so that the two or more breast milk carriers 500 can be cooled, and the temperature of the two or more breast milk carriers 500 can be maintained at a preset temperature.

[0075] In one embodiment, see Fig.15 and Fig.16, a removable temperature averaging plate 120 is provided in the heat-conducting housing 110. Specifically, the temperature averaging plate 120 is a metal temperature averaging plate 120, for example, it can be a copper plate or an aluminum plate, and has good thermal conductivity. The temperature averaging plate 120 can separate two or more breast milk carriers 500 in the chamber 111 from each other. While separating adjacent breast milk carriers 500 in the heat-conducting housing 110 from each other, it contacts the breast milk carrier 500. When the temperature averaging plate 120 and the inner side wall of the heat-conducting housing 110 are in contact with the breast milk carrier 500, the cold can be quickly transferred to the breast milk in the breast milk carrier 500. In addition, after removing the temperature averaging plate 120 in the heat-conducting housing 110, a breast milk carrier 500 of a larger capacity can be loaded into the heat-conducting housing 110 for cooling and storage and transportation, that is, the cooling and storage and transportation of breast milk carriers 500 of a larger capacity can be achieved.

[0076] Furthermore, the bottom of the temperature averaging plate 120 is connected to the bottom wall of the heat-conducting housing 110. Part of the cold energy of the heat-conducting housing 110 is transferred from the bottom wall thereof to the temperature averaging plate 120, and then the temperature averaging plate 120 transfers the cold energy to the breast milk carrier 500 in contact therewith, thereby achieving a better cooling effect on the breast milk carrier 500 and better temperature uniformity.

[0077] In addition, the temperature averaging plate 120 can be, for example, a straight-line temperature averaging plate 120. When, for example, four breast milk carriers 500 filled with breast milk are placed in the chamber 111 of the heat-conducting housing 110, the temperature averaging plate 120 is installed in the middle of the chamber 111, two breast milk carriers 500 filled with breast milk are placed between one side surface of the temperature averaging plate 120 and the first convex bump 112, and the remaining two breast milk carriers 500 filled with breast milk are placed between the other side surface of the temperature averaging plate 120 and the second convex bump 113. In this way, the two opposite outer side walls of two breast milk carriers 500 are in surface contact with one side surface of the temperature averaging plate 120 and the first convex bump 112 respectively; the two opposite outer side walls of the other two breast milk carriers 500 are in surface contact with the other side surface of the temperature averaging plate 120 and the second convex bump 113 respectively, so that the heat-conducting housing 110 can better transfer cold to the breast milk carrier 500, and the temperature uniformity is better.

[0078] In addition, the temperature equalizing plate 120 can also be, for example, a cross-shaped temperature equalizing plate 120. When, for example, four breast milk carriers 500 filled with breast milk are placed in the chamber 111 of the heat-conducting shell 110, the temperature equalizing plate 120 is installed in the chamber 111, and the bottom of the temperature equalizing plate 120 is in contact with the bottom wall of the heat-conducting shell 110. The temperature equalizing plate 120 can isolate the four breast milk carriers 500 from each other, and a part of the side wall of the breast milk carrier 500 is in surface contact with the inner wall of the heat-conducting shell 110, and another part of the side wall of the breast milk carrier 500 is in surface contact with the temperature equalizing plate 120, so that the heat-conducting shell 110 can better transfer the cold to the breast milk carrier 500, and the temperature uniformity is better.

[0079] In one embodiment, the heat-conducting housing 110 is formed by stretching aluminum. Specifically, according to the ratio of the stretching width D1 to the stretching depth H For example, a soft aluminum plate is stretched to form the main body of the heat-conducting housing 110 by 2.5 to 2.6, and then two opposite inner side walls of the main body are stretched to form the first convex bump 112 and the second convex bump 113. In this way, the heat-conducting housing 110 has good thermal conductivity and can reduce the cold conduction loss on the inner liner 100 as much as possible.

[0080] As an optional solution, the heat-conducting housing 110 includes a plurality of heat-conducting metal blocks welded together. The heat-conducting metal blocks are specifically, for example, copper blocks or aluminum blocks. Compared with the heat-conducting housing 110 welded together by, for example, aluminum blocks or copper blocks, the heat-conducting housing 110 formed by integrally stretching aluminum has better thermal conductivity.

[0081] The above-mentioned breast milk refrigeration device can ensure that the temperature of the breast milk in the breast milk carrier 500 is within a constant temperature range during the entire process from squeezing, storage and transportation to feeding, when the mother is not with the baby, such as when the mother goes to work after maternity leave and is unable to feed the baby closely, so as to ensure that the breast milk is within the optimal temperature range, thereby ensuring the nutrition and safety of the breast milk.

[0082] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A breast milk refrigeration device, characterized in that: include: An inner liner, wherein the inner liner is provided with a chamber for accommodating a breast milk carrier; An outer shell, wherein the inner shell is installed in the outer shell; A semiconductor refrigerator, a cooling block and a heat dissipation component, wherein the semiconductor refrigerator comprises a cold end face and a hot end face, wherein the cold end face contacts the cooling block, wherein the cooling block contacts the outer side wall of the inner tank, wherein the heat dissipation component is arranged on the hot end face, wherein one side wall of the cooling block is provided with a first recess, wherein the other side wall of the cooling block is provided with a second recess, wherein the first recess and the second recess are semi-cylindrical, and wherein a hollow hole is arranged in the middle of the cooling block; wherein the end face area of ​​the cooling block in contact with the cold end face is smaller than the end face area of ​​the cooling block in contact with the outer side wall of the inner tank; wherein both side faces of the cooling block at one end facing the inner tank extend outward to form wings; wherein the cooling block is a variable cross-section block, wherein the cross-sectional area of ​​the cooling block first decreases and then increases in the direction from the semiconductor refrigerator to the inner tank; A connecting member, wherein the outer side wall of the inner container is provided with a first mounting portion and a second mounting portion, two ends of the connecting member are detachably mounted on the first mounting portion and the second mounting portion, respectively, and the wing portion is fixed between the connecting member and the outer side wall of the inner container; and The bottom wall of the shell is provided with a mounting opening, the cooling block is arranged in the shell, the semiconductor refrigerator is arranged at the mounting opening, the heat dissipation component is located outside the shell, the insulation layer is filled in the gap between the inner liner and the shell, and the insulation layer is a foam insulation layer; The heat dissipation assembly includes a heat sink and a heat dissipation fan. The heat sink contacts the hot end surface. The heat dissipation fan is used to diffuse the heat on the heat sink. The thickness of the heat sink is set to D s The frame length of the cooling fan is set to L f The outlet surface of the cooling fan is inclined relative to the hot end surface, and the inclination angle of the cooling fan is set to a, and the maximum value of a is 2. The breast milk refrigeration device according to claim 1, characterized in that: The shape of the end surface of the cooling block in contact with the cold end surface is adapted to the cold end surface; the other end surface of the cooling block is in contact with the bottom of the inner container.

3. The breast milk refrigeration device according to claim 1, characterized in that: One end surface of the cooling block is in close contact with the cold end surface, and the other end surface of the cooling block is in close contact with the outer side wall of the inner container.

4. The breast milk refrigeration device according to claim 1, characterized in that: The two wings are connected to the inner container through the connecting piece.

5. The breast milk refrigeration device according to claim 1, characterized in that: A groove is arranged on the side wall of the wing portion facing away from the inner container, and the connecting piece is arranged in the groove.

6. The breast milk refrigeration device according to claim 1, characterized in that: The housing comprises a detachable partition, and the mounting opening is arranged on the partition.

7. The breast milk refrigeration device according to claim 1, characterized in that: The breast milk refrigeration device also includes a bottom cover, which is arranged at the bottom of the shell.

8. The breast milk refrigeration device according to claim 1, characterized in that: The heat sink comprises a heat sink and a plurality of fin plates arranged at intervals on the heat sink; the heat sink is used to contact the hot end surface.

9. The breast milk refrigeration device according to claim 8, characterized in that: The side of the fin plate facing away from the heat sink is a beveled edge inclined relative to the plate surface of the heat sink, and the beveled edge is in contact with the air outlet surface of the heat sink fan.

10. The breast milk refrigeration device according to any one of claims 1 to 9, characterized in that: The inner liner is provided with an opening connected to the chamber, the outer shell includes an openable cover body, the end face of the cover body is provided with an inner lining, the inner lining is provided with a boss, the outer side wall of the boss is a conical surface, and the inner side surface of the mouth of the outer shell is a concave surface adapted to the conical surface.

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