CN214039026U - Refrigerator with a door - Google Patents

Abstract

The utility model provides a refrigerator, include: the refrigerator comprises a refrigerator body, a storage compartment and a device chamber, wherein the refrigerator body is internally limited with the storage compartment; the Stirling refrigerating system is configured to provide cold energy for at least one storage chamber and comprises a Stirling refrigerator and a heat dissipation device, wherein the heat dissipation device is configured to be in thermal connection with the hot end of the Stirling refrigerator, and at least one part of the heat dissipation device is positioned on the left side and/or the right side of the main body part of the Stirling refrigerator; and a heat dissipation fan disposed in the device chamber at an interval in a transverse direction from the stirling refrigerator, for urging outside air to flow into the device chamber and through the main body and the heat dissipation device. The utility model discloses a stirling refrigerator of refrigerator's radiating effect is good.

Description

Refrigerator with a door

Technical Field

The utility model relates to a refrigeration field especially relates to a refrigerator.

Background

With the health emphasis of people, the household stock of high-end food materials is also increasing. According to the research, the storage temperature of the food material is lower than the glass transition temperature, the property of the food material is relatively stable, and the quality guarantee period is greatly prolonged. The existing household refrigerator provided with the Stirling refrigerating system has the problem that the heat dissipation structure of the refrigerating system is complex, and particularly the problems that the heat dissipation parts are many, the installation process is complex and the cost is high due to the fact that the original vapor compression refrigerating system of the refrigerator is not considered.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a do benefit to radiating refrigerator of stirling refrigerator.

The utility model discloses a further purpose provides a part configuration is reasonable, the jointly refrigerated refrigerator of utilization stirling refrigerating system and vapor compression refrigerating system that the radiating effect is good.

Particularly, the utility model provides a refrigerator, include:

the storage compartment is defined in the box body, and the device chamber is defined at the bottom of the rear side of the box body;

the Stirling refrigerating system is configured to provide cold energy for at least one storage chamber and comprises a Stirling refrigerator and a heat dissipation device, wherein the heat dissipation device is configured to be in thermal connection with the hot end of the Stirling refrigerator, and at least one part of the heat dissipation device is positioned on the left side and/or the right side of the main body part of the Stirling refrigerator; and

and the heat dissipation fan and the Stirling refrigerator are arranged in the device chamber at intervals in the transverse direction and are used for promoting the external air to flow into the device chamber and flow through the main body part and the heat dissipation device.

Optionally, the refrigerator further comprises: and the vapor compression refrigeration system is configured to provide cold energy to the at least one storage compartment, wherein a compressor and a condenser of the vapor compression refrigeration system are arranged in the device compartment at intervals in the transverse direction, and the compressor and the condenser are positioned on the same side of the Stirling refrigerator.

Optionally, the part of the heat sink on the side of the main body is positioned on the side of the Stirling refrigerator far away from the compressor;

the heat radiation fan is arranged between the condenser and the compressor to promote the external air to flow into the device chamber and flow through the condenser, the heat radiation fan, the compressor, the main body part and the part of the heat radiation device, which is positioned at the side of the main body part.

Optionally, the left side and the right side of the device chamber are respectively provided with a first vent;

and second ventilation openings are respectively formed in the positions, corresponding to the heat dissipation device, the main body part and the compressor, of the rear cover plate of the box body.

Optionally, the heat sink comprises: the first adapter, the first heat conduction heat pipe and the radiating fins; wherein the first adapter is thermally connected with the hot end of the Stirling refrigerator; the first end of the first heat conduction heat pipe is thermally connected with the first adapter, and the second end of the first heat conduction heat pipe is inserted into the radiating fin;

the heat sink is configured to: the second end of the first heat conduction heat pipe and the heat dissipation fin are positioned on the left side and/or the right side of the main body part.

Optionally, the heat dissipation device further comprises: a second adapter and a second heat conducting heat pipe; wherein the second adapter is thermally connected to the body portion; the first end of the second heat conduction heat pipe is thermally connected with the second adapter, and the second end of the second heat conduction heat pipe is inserted into the radiating fin, so that the second end of the second heat conduction heat pipe is positioned on the left side and/or the right side of the main body part.

Optionally, the stirling refrigeration system further comprises a housing, wherein an accommodating space is defined in the housing, the main body part is suspended in the accommodating space through a plurality of elastic connecting pieces, and

the housing is provided with at least one heat dissipation port to facilitate heat dissipation of the Stirling refrigerator.

Optionally, the housing is configured to have a hollow structure on a surface thereof, so that a plurality of heat dissipation ports are formed on the housing.

Optionally, the stirling refrigeration system further comprises a plurality of first permanent seats and a plurality of second permanent seats; the first fixing seats are symmetrically arranged on the inner side of the housing at intervals; the plurality of second fixed seats are symmetrically arranged at the outer side of the main body part at intervals and correspond to the first fixed seats one by one;

one end of the elastic connecting piece is connected with the first fixing seat, and the other end of the elastic connecting piece is connected with the second fixing seat, so that the main body part is suspended and fixed.

Optionally, two hooks are formed on each group of the first fixing seat and the second fixing seat at intervals along the vertical direction on opposite surfaces respectively;

the elastic connecting piece is a spring, and two springs are arranged between each group of the first fixing seat and the second fixing seat through hooks.

The utility model discloses a refrigerator sets at least some left side and/or the right side that is in the main part of stirling refrigerator through the heat abstractor with stirling refrigerating system to set up radiator fan and stirling refrigerator in the device room at the interval on the transverse direction, make outside air flow through main part and heat abstractor behind the device room, more do benefit to the whole heat dissipation of stirling refrigerator, can prolong the life of stirling refrigerator, reduced the fault rate of stirling refrigerator.

Further, the utility model discloses a refrigerator has still set up vapor compression refrigerating system, through setting up compressor and condenser in the device is indoor in horizontal direction interval to compressor and condenser are located one side of stirling refrigerator, make stirling refrigerating system and vapor compression refrigerating system share a cooling fan, have reduced radiating part quantity, the cost is reduced, and parts layout is reasonable simultaneously, conveniently maintains and sets up.

Further, the utility model discloses a refrigerator is located one side of keeping away from the compressor of stirling refrigerator through setting the heat abstractor to the part that is in the main part avris, sets up radiator fan between condenser and compressor, can make the air current flow more smooth and easy, reduces the windage, improves the amount of wind, further improves the radiating efficiency.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a front view schematically illustrating parts of a refrigerator according to an embodiment of the present invention.

Fig. 2 is an exploded schematic view of part of components of the refrigerator shown in fig. 1.

Fig. 3 is a perspective view of the stirling refrigeration system of the refrigerator shown in fig. 1.

FIG. 4 is an exploded schematic view of the Stirling cooler and enclosure of the refrigerator shown in FIG. 3.

Fig. 5 is an exploded schematic view of a double door and a door frame of the refrigerator shown in fig. 1.

Fig. 6 is a partially enlarged schematic view of fig. 5.

Detailed Description

In the following description, the orientation or positional relationship indicated by "front", "rear", "upper", "lower", "left", "right", etc. is an orientation based on the refrigerator 100 itself as a reference, and "front", "rear", "upper", "lower", "left", "right" is a direction as indicated in fig. 2.

Fig. 1 is a schematic front view of parts of a refrigerator 100 according to an embodiment of the present invention. Fig. 2 is an exploded schematic view of part of the components of the refrigerator 100 shown in fig. 1. Fig. 3 is a perspective view of the stirling refrigeration system of the refrigerator 100 shown in fig. 1. Fig. 4 is an exploded schematic view of the stirling cooler 300 and enclosure 600 of the refrigerator 100 shown in fig. 3.

The refrigerator 100 of the embodiment of the present invention may generally include: the refrigerator comprises a box body 101, a Stirling refrigerating system and a heat radiation fan 103. The box 101 may include a casing 110, an inner container disposed in the casing 110, and a heat insulation layer disposed between the casing 110 and the inner container. The inner container is internally provided with a storage chamber. A device chamber 102 is defined at the bottom of the rear side of the case 101. The Stirling refrigeration system is configured to provide cold to at least one storage compartment and comprises a Stirling refrigerator 300 and a heat sink 304, wherein the heat sink 304 is configured to be thermally connected to the hot end of the Stirling refrigerator 300, and at least a portion of the heat sink 304 is located on the left side and/or the right side of the body portion 301 of the Stirling refrigerator 300. The heat dissipation fan 103 and the stirling cooler 300 are disposed in the device chamber 102 at a distance in the lateral direction, and are configured to promote the external air to flow into the device chamber 102 and through the body portion 301 and the heat sink 304. The main body 301 of the stirling cooler 300 is a portion where a driving mechanism of the stirling cooler 300 is provided, and generates heat when the driving mechanism operates. Therefore, the stirling cooler 300 needs to dissipate heat from the hot end and the main body 301 in which the driving mechanism is provided. The utility model discloses refrigerator 100 sets up to at least some left side and/or right side that is in main part 301 of stirling refrigerator 300 through heat abstractor 304 with stirling refrigerating system, and set up heat dissipation fan 103 and stirling refrigerator 300 interval in transverse direction in device room 102, make outside air flow through main part 301 and heat abstractor 304 after device room 102, realized the heat dissipation to two main heat production positions simultaneously, more do benefit to the whole heat dissipation of stirling refrigerator 300, can prolong the life of stirling refrigerator 300, the fault rate of stirling refrigerator 300 has been reduced.

The utility model discloses refrigerator 100's inner bag can include at least one ordinary inner bag and at least one cryrogenic inner bag 113, and wherein ordinary inner bag is injectd ordinary compartment 111, and cryrogenic inner bag 113 is injectd cryrogenic compartment 112. Herein, the "normal inner container" refers to an inner container other than the deep cooling inner container 113, such as a refrigerating inner container, a freezing inner container, and a temperature changing inner container. Correspondingly, the "ordinary compartment" refers to other non-ultra-low temperature compartments that cannot achieve ultra-low temperature except for the cryogenic compartment 112, such as a refrigerating compartment, a freezing compartment, and a temperature-changing compartment, which are respectively defined by a refrigerating liner, a freezing liner, and a temperature-changing liner. The preservation temperature of the cold storage chamber can be 4-7 ℃ generally, and the preservation temperature of the freezing chamber can be-20-16 ℃ generally. The temperature-changing chamber can be adjusted according to requirements and used as a refrigerating chamber or a freezing chamber. The cryogenic compartment 112 refers to a compartment which is refrigerated by at least a Stirling refrigeration system, and the preservation temperature can be generally-14 ℃ to-80 ℃. In the refrigerator 100 shown in fig. 1, the refrigerator 100 is a cross-door refrigerator, and the normal compartment 111 of the refrigerator 100 is a refrigerating compartment located at the upper part, a temperature-changing compartment located at the right side of the lower part, and a freezing compartment located at the upper left side of the lower part, and a deep-cooling compartment 112 is located below the freezing compartment.

At least a portion of the heat sink 304 may be on the left side, the right side, or both the left and right sides of the body portion 301 of the stirling cooler 300. In order to simplify the arrangement of the heat sink 304, at least a part of the heat sink 304 is usually on the left or right side of the main body portion 301 of the stirling cooler 300. As shown in fig. 2, the device chamber 102 is defined by a profile plate 121, a left side plate 122, a right side plate 123, a back cover plate 124, and a bottom wall plate 125. In order to shorten the cooling distance of the stirling refrigerating system, the stirling cooler 300 is generally disposed behind the cryogenic compartment 112. Thus, a certain gap is left between the left side of the stirling cooler 300 and the left side plate 122, and at least a part of the heat sink 304 is disposed on the left side of the body 301 of the stirling cooler 300, so that the space can be effectively utilized and the components in the device chamber 102 can be arranged compactly.

With continued reference to fig. 2, the stirling cooler 300 is disposed vertically within the device chamber 102, behind the cryogenic compartment 112, and includes a housing, a cylinder, a piston, and a drive mechanism for driving the piston in motion. The housing is composed of a main body 301 and a cylindrical portion 302. The drive mechanism is provided in the main body 301 located at the lower portion. The piston is provided to reciprocate within the cylindrical portion 302 located at the upper portion, so that the upper end of the cylindrical portion 302 forms the cold end of the stirling cooler 300 and the lower end forms the hot end of the stirling cooler 300. The stirling refrigeration system also includes a heat exchanger 305 and a cold sink 303. The heat exchanger 305 is disposed in the cryogenic compartment 112, and is thermally connected to the cold end of the stirling cooler 300 by the cold conduction device 303, so that the stirling cooling system supplies cold to the cryogenic compartment 112. Cold guide 303 may include cold end adapter 331 and cold guide heat pipe 332. Cold-end adapter 331 is thermally connected to the cold end of stirling cooler 300, and cold conduction heat pipe 332 has a first end thermally connected to cold-end adapter 331 and the other end thermally connected to heat exchanger 305. As shown in fig. 3, the heat exchanger 305 may include a cold plate 351 and a plurality of spaced apart cold guide fins 352. The second end of the heat conduction pipe 332 is thermally connected to the heat conduction plate 351, and a plurality of cooling conduction fins 352 extend forward from the front surface of the heat conduction plate 351, and air flow passages are defined between adjacent cooling conduction fins 352. By configuring the heat exchanger 305 to have the cold conductive plate 351 and the plurality of cold conductive fins 352, the heat exchange efficiency can be improved by thermally connecting the cold conductive heat pipe 332 with the cold conductive plate 351 and defining the air flow channel between the adjacent cold conductive fins 352.

In some embodiments, the heat sink 304 of the refrigerator 100 of the embodiment of the present invention includes: a first adapter 341, a first heat conductive heat pipe 342, and heat dissipating fins 343. The first adapter 341 is thermally connected to the hot end of the stirling cooler 300; a first end of the first heat conduction heat pipe 342 is thermally connected to the first adapter 341, and a second end is inserted into the heat dissipation fin 343. The heat sink 304 is configured to: the second end of the first heat conductive heat pipe 342 and the heat dissipation fins 343 are located at the left and/or right side of the body portion 301. The heat of the hot end of the Stirling refrigerator 300 is dissipated by arranging the first heat-conducting heat pipes 342 and the heat-dissipating fins 343 in a matched mode, and therefore heat dissipation efficiency of the hot end can be effectively improved. As shown in fig. 2 and 3, the first adapter 341 sandwiches the upper end of the cylindrical portion 302 therebetween, and the first adapter 341 has a first tube hole along the left-right direction, the first ends of the plurality of first heat-conducting heat pipes 342 are inserted into the first tube hole to fix the first adapter 341, the first heat-conducting heat pipes 342 extend leftward from the first ends and then extend downward, the plurality of heat-dissipating fins 343 have second tube holes along the up-down direction, and the second ends of the first heat-conducting heat pipes 342 are inserted into the second tube holes to fix the heat-dissipating fins 343. By providing the first heat-conducting heat pipe 342 with a section extending downward, at least a portion of the heat sink 304 is naturally located at the side of the main body 301, which is skillful and easy to configure.

In some embodiments, the heat sink 304 of the refrigerator 100 of the embodiment of the present invention further includes: a second adapter 361 and a second heat-conducting heat pipe 362. The second adaptor 361 is thermally connected to the main body 301; a first end of the second heat conduction heat pipe 362 is thermally connected to the second adapter 361, and a second end is inserted into the heat dissipation fin 343, so that the second end of the second heat conduction heat pipe 362 is located at the left and/or right side of the main body portion 301. The heat of the main body part 301 of the stirling cooler 300 is dissipated by the cooperation of the plurality of second heat-conducting heat pipes 362 and the plurality of heat dissipation fins 343, so that the heat dissipation efficiency of the main body part 301 can be effectively improved. As shown in fig. 2 and 3, the second adapter 361 is disposed to be attached to the outer side of the main body portion 301, third pipe holes are formed in the second adapter 361 along the vertical direction, the first ends of the second heat conduction heat pipes 362 are inserted into the third pipe holes to fix the second adapter 361, the second heat conduction heat pipes 362 extend upwards from the first ends to exceed the housing 600, extend leftwards, and finally extend downwards, and the second ends of the second heat conduction heat pipes 362 are also inserted into the second pipe holes of the heat dissipation fins 343 to fix the heat dissipation fins 343. By providing the second heat conduction heat pipe 362 with a section extending downward, at least a portion of the heat sink 304 is naturally located at the side of the main body 301, which is a skillful and easy configuration.

The embodiment of the utility model provides a refrigerator 100 still includes: and the vapor compression refrigeration system is configured to provide cold energy to at least one storage compartment, wherein the compressor 201 and the condenser 202 of the vapor compression refrigeration system are arranged in the device chamber 102 at intervals in the transverse direction, and the compressor 201 and the condenser 202 are positioned on the same side of the Stirling refrigerator 300. In the refrigerator 100 according to the embodiment of the present invention, the common compartment 111 is provided with cooling capacity by the vapor compression refrigeration system. The vapour compression refrigeration system further comprises at least one evaporator (not shown) arranged in the common compartment 111 to achieve that the vapour compression refrigeration system provides refrigeration to the common compartment 111. The refrigerator 100 according to the embodiment of the present invention has the advantages that the compressor 201 and the condenser 202 are arranged in the device chamber 102 at intervals in the transverse direction, so that the stirling refrigeration system and the vapor compression refrigeration system share the same heat dissipation fan 103, the number of heat dissipation components is reduced, and the cost is reduced; by locating the compressor 201 and the condenser 202 on the same side of the stirling cooler 300, the main components of the stirling cooling system and the vapor compression cooling system can be installed in different areas, and the later maintenance is facilitated.

In some embodiments, the portion of the heat sink 304 on the side of the main body portion 301 is located on the side of the stirling cooler 300 remote from the compressor 201. The heat dissipation fan 103 is disposed between the condenser 202 and the compressor 201 to cause outside air to flow into the device chamber 102 and to flow through the condenser 202, the heat dissipation fan 103, the compressor 201, the main body 301, and the heat sink 304 in this order at a portion on the side of the main body 301. The utility model discloses refrigerator 100 is located one side of keeping away from compressor 201 of stirling refrigerator 300 through the part that sets heat abstractor 304 to be in main part 301 avris to set up radiator fan 103 between condenser 202 and compressor 201, can make the air current flow more smooth and easy, reduce the windage, improve the amount of wind, further improve the radiating efficiency. As shown in fig. 2, the device chamber 102 is provided with first vents 131 at left and right sides thereof; the rear cover plate 124 of the box 101 is provided with second ventilation openings 132 at positions corresponding to the heat sink 304, the main body 301 and the compressor 201. Through setting up left right direction's first vent 131 to set up second vent 132 on back shroud 124 respectively corresponding main heat dissipation part, can do benefit to the flow of air current, and then improve the radiating efficiency.

In some embodiments, the stirling refrigerating system of the refrigerator 100 of the embodiment of the present invention further includes a cover 600, the cover 600 defines an accommodating space 610 therein, the main body 301 is suspended in the accommodating space 610 through a plurality of elastic connectors 703, and the cover 600 is provided with at least one heat dissipating port 601 for dissipating heat of the stirling refrigerator 300. By suspending the stirling cooler 300 in the housing 600 by the elastic connector 703, the vibration of the stirling cooler 300 can be reduced or even eliminated in all directions while the stirling cooler 300 is stably and reliably mounted, thereby preventing the vibration generated by the stirling cooler 300 from being amplified by the heat sink 304; the heat radiation port 601 provided in the cover 600 can further contribute to the heat radiation of the stirling refrigerator 300, particularly, the heat radiation of the main body 301. As shown in fig. 2, 3 and 4, the cover 600 is configured to have a hollow structure on the surface, so that a plurality of heat dissipation openings 601 are formed on the cover 600. Through setting cover 600 to hollow out construction, can alleviate stirling refrigerating system's whole weight, a plurality of thermovents 601 can make things convenient for the flow of air current more simultaneously, more do benefit to the heat dissipation of main part 301. As shown in fig. 3, the bottom of the casing 600 is provided with a plurality of elastic feet 602 to further reduce the vibration of the stirling cooler 300.

In some embodiments, the stirling refrigeration system of the refrigerator 100 of the embodiment of the present invention further includes a plurality of first fixing seats 701 and a plurality of second fixing seats 702; the first fixing seats 701 are symmetrically arranged at intervals on the inner side of the housing 600; the second fixing seats 702 are symmetrically arranged at intervals on the outer side of the main body part 301 and correspond to the first fixing seats 701 one by one; one end of the elastic connector 703 is connected to the first fixing seat 701, and the other end is connected to the second fixing seat 702, so as to realize the suspended fixing of the main body 301. As shown in fig. 4, the stirling refrigeration system includes four first fixing seats 701 and four second fixing seats 702, the casing 600 is an octagonal hollow structure as a whole, and the four first fixing seats 701 and the four second fixing seats 702 are uniformly arranged in the casing 600 at intervals. In some embodiments, each set of the first fixing seat 701 and the second fixing seat 702 has two hooks 704 formed on opposite surfaces thereof at intervals in the up-down direction. The elastic connection 703 may be a spring, and two springs are disposed between each set of the first fixing base 701 and the second fixing base 702 by using the hook 704. One end of the spring positioned at the upper part is connected with the hook 704 positioned at the upper part of the first fixing base 701, and the other end is connected with the hook 704 positioned at the upper part of the second fixing base 702. One end of the spring located at the lower portion is connected to the hook 704 located at the lower portion of the first fixing base 701, and the other end is connected to the hook 704 located at the lower portion of the second fixing base 702. In addition, the stirling refrigerating system may further include four limiting blocks 705 and four limiting rods 706, and each of the first fixing seats 701 is provided with one limiting block 705 and one limiting rod 706 correspondingly. The limiting block 705 is provided with a first limiting hole 750, and the second fixing base 702 is correspondingly provided with a second limiting hole. One end of the limiting rod 706 penetrates through the first limiting hole 750, and the other end of the limiting rod is fixed in the second limiting hole. A rib is formed on the first fixing seat 701, a slot is formed on the limiting block 705, and the limiting block 705 and the first fixing seat 701 are fixed in an inserting manner. The Stirling refrigerator 300 can be further reliably mounted by arranging the limiting block 705 and the limiting rod 706.

Fig. 5 is an exploded schematic view of the double door 400 and the door frame 430 of the refrigerator 100 shown in fig. 1. Fig. 6 is a partially enlarged schematic view of fig. 5. A double door 400 is provided at a front side of the deep cooling compartment 112 of the refrigerator 100 to enhance a heat insulating effect of the refrigerator 100. In some embodiments, the double door 400 includes an outer door body 401 and an inner door body 402; the inner door body 402 is positioned on the inner side of the outer door body 401, is arranged on the front side of the deep cooling chamber 112 and is used for opening and closing the deep cooling chamber 112; and the outer door body 401 and the inner door body 402 are provided independently of each other so that the inner door body 402 remains closed while the outer door body 401 is opened outward. The preservation temperature of the cryogenic compartment 112 is relatively low, when the cryogenic compartment 112 and the common compartment 111 share the same outer door body 401, the double-layer door 400 is arranged to include the outer door body 401 and the inner door body 402 which are independent of each other, the size of the outer door body 401 is larger than that of the inner door body 402, and the common compartment 111 is opened and closed by the outer door body 401, so that when a user takes and places articles from and in the common compartment 111, the inner door body 402 can be kept in a closed state under the condition that the outer door body 401 is opened, namely, the cryogenic compartment 112 is still sealed, and cold leakage can be effectively reduced. The distance between the inner door body 402 and the outer door body 401 is not more than 5 mm. The distance is too large, and the frosting risk is large. In addition, the outer surface of the inner door 402 may be provided with a heating wire, which may be intermittently turned on or turned on depending on conditions. Meanwhile, in order to ensure that the outer side of the inner door body 402 does not frost, a vacuum heat insulation board can be further arranged inside the inner door body 402, so that the temperature of the outer surface of the inner door body 402 is higher than 0 ℃. In order to overcome the negative pressure problem of the deep cooling compartment 112, a pressure balance hole may be further formed on the door seal of the inner door body 402 to ensure that the inner door body 402 can be opened smoothly.

The embodiment of the utility model provides a refrigerator 100 still includes: a door frame 430 and a mechanical locking mechanism. Door frame 430 is disposed at the front of tank 101 of deep cooling compartment 112. One end of the inner door 402 is connected to the cabinet 101, and the other end is detachably connected to the door frame 430 by a mechanical locking mechanism. By providing a separate door frame 430 in front of the tank 101 of the cryogenic compartment 112, the inner door 402 can be embedded within the tank 101. A seal strip is provided between the inner door body 402 and the door frame 430. Specifically, in order to ensure the sealing performance of the inner door body 402, a sealing strip is provided at the mating surface of the inner door body 402 and the door frame 430, and a sealing strip is also provided at the convex portion of the inner door body 402, i.e., a double door seal, which reduces the gap between the inner door body 402 and the door frame 430. Meanwhile, in order to prevent cold leakage, a seal may be provided between the upper portion of the inner door 402 and the general compartment 111.

In some embodiments, the inner door 402 and the chest 101 may be connected by at least two hinges 450. By connecting the inner door 402 to the box 101 with the hinge 450, the angle of the inner door 402 when opened can be ensured to reach 90 °. In the embodiment shown in FIG. 5, the inner door 402 is attached to the cabinet 101 by two hinges 450.

In some embodiments, the front end surface of the door frame 430 is formed with a locking groove 431. The mechanical locking mechanism comprises a first structural member 501, a second structural member 502, a third structural member 503 and a rotating rod 504, wherein a clamping joint 5121 is formed on a side end plate 512 of the first structural member 501, and the first structural member 501 is rotatably connected with the side end surface of the inner door body 402 through the third structural member 503 and the rotating rod 504; the second structural member 502 is connected to the door frame 430 and has a protrusion 521 extending to the slot 431. The inner door body 402 and the door frame 430 are hermetically fixed by moving the clamping head 5121 into the clamping groove 431 and fitting the bulge 521, and the inner door body 402 and the door frame 430 are separated by moving the clamping head 5121 out of the clamping groove 431. Through set up draw-in groove 431 on door frame 430, utilize the joint 5121 of mechanical locking mechanism to realize the fixed and separation of interior door body 402 and door frame 430, also realize closing and opening of interior door body 402, the structure is ingenious, conveniently controls. Referring to fig. 6, the first structure 501 includes a front end plate 511 and a side end plate 512, and a through hole matching with the first rod (not shown) of the rotating rod 504 is formed on the side end plate 512. The third structural member 503 includes a front end plate and a side end plate, the side end plate is fixed to the inner door 402 by two mounting holes and a fixing member 530, a through hole for the rotating rod 504 to pass through is also formed between the two mounting holes corresponding to the through hole of the first structural member 501, and the through hole of the third structural member 503 is matched with the second rod portion (not shown in the figure) of the rotating rod 504. And the outer diameter of the first rod part of the rotating rod 504 is larger than that of the second rod part, that is, the outer diameter of the contact area of the rotating rod 504 and the first structural member 501 is larger than that of the contact area of the rotating rod 504 and the third structural member 503, so that the first structural member 501 can be connected with the inner door body 402 and can rotate at the same time. In addition, in order to make the installation of the third structural member 503 and the inner door 402 more stable, a gasket may be provided under the side end plate of the third structural member 503. In the embodiment shown in fig. 6, the first structural member 501 rotates in the front-rear direction, the latch 5121 is formed to extend downward and rearward, and the second structural member 502 has a flat plate portion provided with a mounting hole and a protrusion 521 extending upward from the flat plate portion. It is understood that the first structural member 501 may also be rotated in the up-down direction, in which case the locking groove 431 may be opened in the left-right direction, and the protrusion 521 may extend leftwards or rightwards. In some embodiments, the front end surface of the inner door body 402 is formed with a recess 421; the front end plate 511 of the first structural member 501 extends into the recess 421, and the front side is provided with an indication plate 422. The front end plate 511 of the first structural member 501 is located in the concave portion 421, and can be used as a handle, so that the operation of a user is facilitated, the operation direction of the user can be reminded by arranging the indicating plate 422, and the use experience of the user is improved.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A refrigerator characterized by comprising:

the refrigerator comprises a refrigerator body, a storage compartment and a device chamber, wherein the refrigerator body is internally limited with the storage compartment;

the Stirling refrigerating system is configured to provide cold energy for at least one storage chamber and comprises a Stirling refrigerator and a heat dissipation device, wherein the heat dissipation device is configured to be in thermal connection with the hot end of the Stirling refrigerator, and at least one part of the heat dissipation device is positioned on the left side and/or the right side of the main body part of the Stirling refrigerator; and

and the heat dissipation fan and the Stirling refrigerator are arranged in the device chamber at intervals in the transverse direction and used for promoting external air to flow into the device chamber and flow through the main body part and the heat dissipation device.

2. The refrigerator according to claim 1, further comprising:

and the vapor compression refrigeration system is configured to provide cold energy to at least one storage compartment, wherein a compressor and a condenser of the vapor compression refrigeration system are arranged in the device compartment at intervals in the transverse direction, and the compressor and the condenser are positioned on the same side of the Stirling refrigerator.

3. The refrigerator according to claim 2,

the part of the heat dissipation device, which is positioned on the side of the main body part, is positioned on one side of the Stirling refrigerator, which is far away from the compressor;

the cooling fan set up in the condenser with between the compressor to make outside air flow in the device room and flow through in proper order the condenser, cooling fan, the compressor, the main part, heat abstractor is in the part of main part avris.

4. The refrigerator according to claim 2,

the left side and the right side of the device chamber are respectively provided with a first ventilation opening;

and second ventilation openings are respectively formed in the positions, corresponding to the heat dissipation device, the main body part and the compressor, of the rear cover plate of the box body.

5. The refrigerator according to claim 1,

the heat dissipating device includes: the first adapter, the first heat conduction heat pipe and the radiating fins; wherein the first adapter is thermally connected to the hot end of the Stirling cooler; the first end of the first heat conduction heat pipe is thermally connected with the first adapter, and the second end of the first heat conduction heat pipe is inserted into the radiating fin;

the heat dissipation device is configured to: the second end of the first heat conduction heat pipe and the heat dissipation fin are positioned on the left side and/or the right side of the main body part.

6. The refrigerator according to claim 5,

the heat dissipating device further includes: a second adapter and a second heat conducting heat pipe; wherein the second adapter is thermally coupled to the body portion; the first end of the second heat conduction heat pipe is thermally connected with the second adapter, and the second end of the second heat conduction heat pipe is inserted into the heat dissipation fin, so that the second end of the second heat conduction heat pipe is located on the left side and/or the right side of the main body portion.

7. The refrigerator according to claim 1,

the Stirling refrigerating system further comprises a cover shell, wherein an accommodating space is defined in the cover shell, the main body part is arranged in the accommodating space in a suspension mode through a plurality of elastic connecting pieces, and

the housing is provided with at least one heat dissipation port to facilitate heat dissipation of the Stirling refrigerator.

8. The refrigerator according to claim 7,

the cover shell is configured to have a hollow structure on the surface, so that a plurality of heat dissipation openings are formed in the cover shell.

9. The refrigerator according to claim 7,

the Stirling refrigeration system further comprises a plurality of first fixed seats and a plurality of second fixed seats; the first fixing seats are symmetrically arranged on the inner side of the housing at intervals; the plurality of second fixing seats are symmetrically arranged on the outer side of the main body part at intervals and correspond to the first fixing seats one by one;

one end of the elastic connecting piece is connected with the first fixing seat, and the other end of the elastic connecting piece is connected with the second fixing seat, so that the main body part is suspended and fixed.

10. The refrigerator according to claim 9,

two hooks are formed on the opposite surfaces of each group of the first fixed seat and the second fixed seat at intervals along the vertical direction;

the elastic connecting piece is a spring, and each group of the first fixing seat and the second fixing seat are provided with two springs by utilizing the hook.

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