CN104685309A

CN104685309A - Refrigerator

Info

Publication number: CN104685309A
Application number: CN201380050635.6A
Authority: CN
Inventors: 堀井慎一
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2012-09-28
Filing date: 2013-09-20
Publication date: 2015-06-03
Anticipated expiration: 2033-09-20
Also published as: JP6089223B2; JP2014070769A; EP2902734A1; CN104685309B; WO2014050052A1; EP2902734A4

Abstract

A refrigerator is provided with: storage compartments of different temperature zones, the storage compartments being formed by partition walls (118a, 118b) for partitioning the inside of a heat insulating box such that the storage compartments are arranged above each other in the vertical direction; and a door (105a) disposed at the front face of each of the storage compartments. The refrigerator is also provided with: gaskets (133) provided to the doors (105a) coming into close contact with the front faces of the openings of the heat insulating box; and door frames (135) for supporting the doors (105a) so that the doors (105a) can be opened and closed. The doors (105a) are provided with: outer plates and inner plates (132); heat insulating foam members (134) filled into the spaces between the outer plates and the inner plates (132); and frame affixation members (136) embedded in the heat insulating foam members (134). The doors (105a) are also provided with frame protective members (140) provided on the side of the doors (105a) which faces the storage compartments. As a result, the exchange of heat occurring when the door frames (135) are cooled is prevented to reduce electric power consumption.

Description

Freezer

Technical field

The present invention relates to the structure of the high freezer of energy-saving effect.

Background technology

When strict to energy-conservation requirement, in the cold air forced circulation making to be generated by cooler in the freezer cooling storeroom, not only pay attention to the refrigerating efficiency of this cooler, and the energy-conservation also attention that the structure of the opening portion of storeroom brings.(such as with reference to patent document 1)

Hereinafter, with reference to the accompanying drawings of existing freezer.

Fig. 7 is the sectional view of existing freezer, and Fig. 8 is the sectional view of the cryogenic temperature room of existing freezer.

In Fig. 7, freezer main body 30 comprises refrigerating chamber 36, cryogenic temperature room 31, vegetable compartment 37 from the top down successively.The 2nd refrigerating chamber 32 and juxtaposed ice-making compartment 33 horizontal with the 2nd refrigerating chamber 32 that are provided with container 42 is configured with on the top of cryogenic temperature room 31.And, be configured with at the 2nd refrigerating chamber 32 of cryogenic temperature room 31 and the below of ice-making compartment 33 the 1st refrigerating chamber 34 being provided with container 43.At the back of the 1st refrigerating chamber 34, divided by partition member 50 and be formed with the cooler room 62 with cooler 61.And, be provided with cold air path 50a at this partition member 50.In addition, in the 1st refrigerating chamber 34, be provided with the container 43 on upper strata and the container 44 of lower floor of overlapping 2 layers.The cold air formed with partition member 50 one or split is discharged wind path 52,53,54 and is communicated with cold air path 50a, imports cold air from outlet 52a, 53a, 54a to container 42,43,44.

Cooler room 62 is located at by blower fan 63, forces the cold air generated by cooler room 62 in cryogenic temperature room 31, refrigerating chamber 36, vegetable compartment 37 circulate.

In cryogenic temperature room 31, the cold air generated by the cooler 61 at the back being arranged at main body, is blown out in storehouse by blower fan 63 from outlet 52a, 53a, 54a of the partition member 50 at the back side of cryogenic temperature room 31, cools received foodstuff.Then, the cold air after cooling food class, as shown in the arrow recorded in Fig. 8, carries out the circulation arriving front, return cooler 61.

The inner surface of door 71 is formed by inner panel 72, is close to the door seal 73 throughout all-round setting, prevents cold air from externally leaking in its end.Be filled with foaming heat insulation parts 74 in the inside of inner panel 72, guarantee the thermal insulation of freezer.

Doorframe 75 and door 71 link by being fixed by doorframe 75 screw 77 of the frame fixed part 76 formed by metal material in the foaming heat insulation parts 74 be embedded in door 71 and maintenance container 41.And the door 71 linked with doorframe 75 is can be installed in freezer main body 30 in the mode of fore-aft travel.

In addition, in recent years, doorframe 75 maximizes to make the storage amount of container 41, has and is installed on the bottom side of container 41 or the trend of below, its result, and doorframe 75 is also configured at below relative to door 71 with the fixed part of the inner panel 72 of door 71.

The protuberance 78 of inner panel 72 is projected into storeroom side, by guaranteeing the creepage distance of the metal abutment 79 be close to from door seal 73, suppresses the heat from the metal abutment 79 also contacted with extraneous air to invade.

And, by arranging cold air guide member 80 in the front end of protuberance 78, extend further the creepage distance in metal abutment 79 and the space in storeroom, and the flow direction of cold air by boot cycle, carry out the suppression that heat invades.

But in existing structure, by cooling doorframe 75 entirety formed by metal material at the cold air of storehouse Inner eycle of blowing out from outlet 52a, and the frame fixed part 76 of the metal material fixed by screw 77 is also cooled simultaneously.Cooled frame fixed part 76, owing to being metal material, so easy heat transfer, is cooled to the leading section 76a of frame fixed part 76.

In addition, doorframe 75 with the fixed part of inner panel 72, being configured at below to make the storage amount of container 41 maximize, thus, being difficult to the thickness of the foaming heat insulation parts 74 of the leading section 76a fully guaranteeing covering frame fixed part 76.

Thus, be subject to the impact of extraneous air etc. and promote the heat exchange of the metal abutment 79 higher with temperature or door seal 73 ambient air, existing to achieve one's goal obtains the problem of the protuberance 78 of inner panel 72, the energy-saving effect of cold air guide member 80.

Prior art document

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2011-080732 publication

Summary of the invention

Freezer of the present invention; at least one comprises the foamed heat-insulating material be filled between outside plate and inner panel and the frame fixed part being embedded in foamed heat-insulating material; further, the frame guard block suppressing cold air directly to contact with the inner panel fixed part of doorframe is provided with in the storeroom side of door.

According to this structure, the present invention, by suppressing the fixed part of doorframe and inner panel is cooled, can suppress the heat exchange in the opening portion of storeroom such as metal abutment, sealing gasket, so can provide the freezer reducing power consumption amount.

Accompanying drawing explanation

Fig. 1 is the front view of the freezer of an embodiment of the invention.

Fig. 2 is the longitudinal section of the freezer of an embodiment of the invention.

Fig. 3 is the major part amplification sectional view of the freezer of an embodiment of the invention.

Fig. 4 is the major part stereogram comprising frame guard block of the freezer of an embodiment of the invention.

Fig. 5 is the major part stereogram comprising frame guard block of the freezer of an embodiment of the invention.

Fig. 6 is the stereogram of the freezer door of an embodiment of the invention.

Fig. 7 is the longitudinal section of existing freezer.

Fig. 8 is the major part amplification sectional view of existing freezer.

Detailed description of the invention

Hereinafter, with reference to the accompanying drawings of the freezer of an embodiment of the invention.In addition, the present invention does not limit by this embodiment.

(embodiment)

Fig. 1 is the front view of the freezer of an embodiment of the invention.Fig. 2 is the longitudinal section of the freezer of an embodiment of the invention.Fig. 3 is the major part amplification sectional view of the freezer of an embodiment of the invention.Fig. 4 is the major part stereogram comprising doorframe guard block of the freezer of an embodiment of the invention.Fig. 5 is the major part stereogram comprising doorframe guard block of the freezer of an embodiment of the invention.Fig. 6 is the stereogram of the freezer door of an embodiment of the invention.

In Fig. 1, Fig. 2, freezer 100 has the heat insulating box 101 forming freezer main body.Heat insulating box 101 mainly comprises: use the outer container 102 of steel plate, the foamed heat-insulating material such as hard polyurethane foam by case 103, the space of foam filling between outer container 102 and interior case 103 in the resin formings such as ABS, with surrounding insulation.Heat insulating box 101 is divided into multiple storeroom, is provided with the refrigerating chamber 104 as the first storeroom at topmost, horizontally-arrangedly in the bottom of this refrigerating chamber 104 is provided with as the second refrigerating chamber 105 of the 4th storeroom and the ice-making compartment 106 as the 5th storeroom.Be provided with the first refrigerating chamber 107 as the second storeroom in the bottom of this second refrigerating chamber 105 and ice-making compartment 106, be provided with the vegetable compartment 108 as the 3rd storeroom at foot.

Refrigerating chamber 104 comprises the right door 104a of refrigerating chamber as revolving door and refrigerating chamber left-hand door 104b, is suitably configured with refrigerating chamber shelf 104c or refrigerating chamber box 104d, is formed in the mode easily arranging storage space in inside.On the other hand, other storeroom has drawer type door, the doorframe being installed on the second refrigerating chamber door 105a is placed with the second refrigerating chamber box 105b, the doorframe being installed on ice-making compartment door 106a is placed with ice-making compartment box 106b.In addition, the doorframe being installed on the first refrigerating chamber door 107a is placed with upper strata refrigerating chamber box 107b and lower floor refrigerating chamber box 107c.The doorframe being installed on vegetable compartment door 108a is placed with upper strata vegetable compartment box 108b and lower floor refrigerating chamber box 108c.

Refrigerating chamber 104, for carrying out stored refrigerated and being set as the temperature that do not freeze and refrigerated storage temperature territory, is set to 1 DEG C ~ 5 DEG C usually.Vegetable compartment 108 is set to the edible wild herbs temperature field 2 DEG C ~ 7 DEG C that the refrigerated storage temperature territory equal with refrigerating chamber 104 or slightly high temperature set.First refrigerating chamber 107 is set at cryogenic temperature territory, usually sets with-22 DEG C ~-15 DEG C for carrying out freezen protective, but for improving freezen protective state, sometimes also sets with the low temperature of such as-30 DEG C or-25 DEG C.

Second refrigerating chamber 105 is set at the cryogenic temperature territory equal with the first refrigerating chamber 107 or slightly high temperature sets-20 DEG C ~-12 DEG C.Ice by automatic ice maker (not shown) ice making being located at indoor top, and is stored in ice-making compartment box 106b by the water that ice-making compartment 106 passes through to send from the water storage tank (not shown) in refrigerating chamber 104.

The top part of heat insulating box 101 is go and the stepped shape being provided with depression to the direction, the back side of freezer, is formed with Machine Room 101a at this stair-stepping recess.Be accommodated with compressor 109 at Machine Room 101a, carry out the high-pressure side component parts of the kind of refrigeration cycle such as the drier (not shown) of moisture removing.That is, the Machine Room 101a configuring compressor 109 is absorbed in the rear area of the topmost in refrigerating chamber 104 and is formed.

Like this, Machine Room 101a is set by the storeroom rear area of the topmost of the heat insulating box 101 of dead space not easily arrived at the hand becoming user and configures compressor 109, following effect can be obtained.That is, in existing freezer, easy-to-use for the user space being in the Machine Room of the foot of heat insulating box 101 effectively can be converted into storeroom capacity, significantly can improve storage property and ease for use.

Kind of refrigeration cycle, by comprising compressor 109, condenser successively, being formed as the capillary of pressure reducer and a series of refrigerant flow path of cooler 112, is sealed with such as the iso-butane of hydrocarbon refrigerant as cold-producing medium.

Compressor 109 for moving back and forth by piston and carrying out the reciprocating motion type compressor of the compression of cold-producing medium in cylinder.In heat insulating box 101, when using the kind of refrigeration cycle of triple valve or transfer valve, sometimes also these functional parts are configured in the 101a of Machine Room.

In addition, in the present embodiment, the pressure reducer forming kind of refrigeration cycle adopts capillary, but also can use the electric expansion valve that freely can control the flow of cold-producing medium driven by pulse motor.

In addition, the item of the major part about the following invention described in present embodiment also goes for arranging Machine Room at the storeroom rear area of the foot of existing general heat insulating box 101 and configuring the freezer of the type of compressor 109.

Be provided with the cooling chamber 110 generating cold air at the back side of the first refrigerating chamber 107, cooling chamber 110 is separated by partition member 111 with the storeroom comprising the second refrigerating chamber 105, ice-making compartment 106 and the first refrigerating chamber 107.In cooling chamber 110, be configured with cooler 112, follow the air carrying out heat exchange and heating with each storeroom to carry out heat exchange, generate cold air.Partition member 111 is made up of storeroom side partition member 111a and cooling chamber side partition member 111b, and in cooling chamber side, partition member 111b is provided with blower fan 113.Space between storeroom side partition member 111a and cooling chamber side partition member 111b is air supply duct 111c, guides to refrigerating chamber 104, ice-making compartment 106, first refrigerating chamber 107, vegetable compartment 108 by being forced the cold air sent by blower fan 113.

In addition, the radiation heating unit 114 of the glass control for the frost or ice defrosting being attached to cooler 112 or its periphery during cooling is provided with in the lower space of cooler 112.And, the drain pan 115 of the defrost water produced when the bottom of radiation heating unit 114 is provided with for bearing defrosting and the drainpipe 116 penetrated into from the most deep of this drain pan 115 storehouse.Evaporating pan 117 is provided with outside the heat insulating box 101 in the downstream of this drainpipe 116.

Near the lower surface of upside partition wall 118a dividing refrigerating chamber 104 and the second refrigerating chamber 105 and ice-making compartment 106, be formed with upper nozzle 120, the cold air flowing through air supply duct 111c delivered to the second refrigerating chamber 105, ice-making compartment 106 and the first refrigerating chamber 107.From the cold air that upper nozzle 120 is discharged, circulate in the second refrigerating chamber box 105b, ice-making compartment box 106b, upper strata refrigerating chamber box 107b and lower floor refrigerating chamber box 107c.The cold air of circulation is again returned cooler 112 circulated by the suction inlet 125 that returns being formed at the bottom of storeroom side partition member 111a.

In addition, in upside, partition wall 118a is configured with air door 121, by the cold air after air door 121 further to refrigerating chamber pipeline 122 and vegetable compartment pipeline (not shown) shunting, is sent to refrigerating chamber 104 and vegetable compartment 108.

As shown in Figure 3, be blown out to the cold air in storehouse from upper nozzle 120, received foodstuff is cooled, carry out the circulation arriving front, return cooler 112 as shown by arrows.

Second refrigerating chamber door 105a is held in the heat insulating box 101 as freezer main body by doorframe 135.In addition, foaming heat insulation parts 134 are filled with in the inside of the second refrigerating chamber door 105a.Keep the doorframe 135 of the second refrigerating chamber box 105b, fix with screw 137 and the frame fixed part 136 be embedded in the foaming heat insulation parts 134 of door 71.The door 71 linked with doorframe 135 is installed in the mode that can move forward and backward in the second refrigerating chamber 105.

In order to increase the food storage amount of the second refrigerating chamber box 105b, doorframe 135 is positioned at the bottom side of the second refrigerating chamber box 105b.Thus, doorframe 135 is configured at below with the fixed part of the inner panel 132 of door 71 relative to the second refrigerating chamber door 105a.

The inner surface of the storeroom side of the second refrigerating chamber door 105a is formed by inner panel 132, close door 71 time be also formed at inner panel 132 for extending from the protuberance 138 of the creepage distance the second refrigerating chamber 105 to the second refrigerating chamber 105.In addition, in the end of inner panel 132, throughout the all-round sealing gasket 133 being provided with door, sealing gasket 133 be arranged at outer container 102, the metal abutment 139 of upside partition wall 118a and lower separation wall 118b is close to.

Frame guard block 140 is to cover arranging with the mode of the stationary plane of inner panel 132 of doorframe 135.In addition, frame guard block 140 and doorframe 135 and be provided with heat insulating member 141 between the stationary plane of inner panel 132.

As shown in Fig. 3, Fig. 4, Fig. 5, be formed with cold air guide portion 150 in the bottom of frame guard block 140, and be provided with the portion that is fitted and fixed with 151 for frame guard block 140 being installed on doorframe 135.In addition, frame guard block 140 is formed for being screwed screwed hole in inner panel 132 and screw fixed part 152.

As shown in Figure 3, frame guard block 140 profile projected area C than doorframe 135 with the area A of the stationary plane 135a of inner panel 132 and the large with the area B of the contact surface 136a of inner panel 132 of frame fixed part 136.

In addition, as shown in Figure 3, Figure 4, as the downstream of cold air circulation frame guard block 140, close to the outstanding dimension D of lower separation wall 118b, larger than the outstanding size E of the upper end of the frame guard block 140 of the upstream side circulated as cold air.

In addition, as shown in Figure 6, frame guard block 140 is the dual-purpose specification can installing same parts on the second refrigerating chamber door 105a and ice-making compartment door 106a.

To freezer as constructed as above, its action, effect are below described.

First, the flowing of the cold air in the second refrigerating chamber 105 is described.By the cooled cold air of cooler 112, be forced to be blown in the second refrigerating chamber box 105b from upper nozzle 120 by blower fan 113, received foodstuff is cooled.And, force the cold air of blowout to be blown out to upper strata refrigerating chamber box 107b in the first refrigerating chamber 107 and lower floor refrigerating chamber box 107c respectively by blower fan 113.Cooled for foodstuff cold air is passed through the second refrigerating chamber 105 and the gap portion of upside partition wall 118a on upper strata, pass through the gap portion of the second refrigerating chamber box 105b and upper strata refrigerating chamber box 107b in middle level.The cold air collaborated after flowing through the gap portion on upper strata and the gap portion in middle level, being inhaled into from returning suction inlet 125 by the space of the below of lower floor refrigerating chamber box 107c, returning cooler 112.

The cold air be blown into from upper nozzle 120 in second refrigerating chamber box 105b is forced, by the second refrigerating chamber box 105b and towards the direction of the second refrigerating chamber door 105a by blower fan 113.

Frame guard block 140 covers the entirety of the stationary plane 135a of doorframe 135, to make by the second refrigerating chamber box 105b and cold air towards the second refrigerating chamber door 105a does not directly contact with the stationary plane of inner panel 132 with doorframe 135.The cold air bumping against frame guard block 140 is dynamic along the surface current of frame guard block 140, and afterwards, flow in the direction to the box in the first refrigerating chamber 107.

The profile projected area C of frame guard block 140, meets the condition of C > A and C > B with the area A of the stationary plane 135a of doorframe 135 and frame fixed part 136 with the area B of the contact surface 136a of inner panel 132.According to this structure, effectively suppress the cooling to doorframe 135 and frame guard block 140.

The protuberance 138 of inner panel 132 is projected into storeroom side, guarantees the creepage distance of the metal abutment 139 be close to from the sealing gasket 133 of door 71, suppresses thus to invade from the heat of the metal abutment 139 also contacted with extraneous air.

Frame guard block 140, by being provided with cold air guide portion 150 in the front of the protuberance 138 of inner panel 132, extends the creepage distance in the space in metal abutment 139 and the second refrigerating chamber 105 further.And, the flow direction of the cold air of circulation can be guided to the direction leaving metal abutment 139, thus suppress heat to invade.

The outstanding size E of the outstanding dimension D near the lower separation wall 118b of frame guard block 140 and the upper end of frame guard block 140 is formed in the mode of the relation meeting D > E.Thus; due to the flow direction of cold air is guided to the direction leaving metal abutment 139; and become the equidirectional inclination of inclination with the draft angle of the mould of the second refrigerating chamber box 105b, so easily guarantee the wind path of the cold air between frame guard block 140 and the second refrigerating chamber box 105b.

Heat insulating member 141 is provided with between the stationary plane 135a of the inner panel 132 of frame guard block 140 and doorframe 135.Thus, cool frame guard block 140 by cold air, the situation being indirectly cooled to the stationary plane 135a of doorframe 135 is thus suppressed, and reduces power consumption amount further thus.

Being installed on the frame guard block 140 of doorframe 135 for easy installation by being fitted and fixed with portion 151, can production hour being suppressed.In addition, screw fixed part 152, when only with when being fitted and fixed with 151, portion maintenance intensity deficiency, can being screwed and firmly fixing.In addition, the screwed hole of doorframe 135 is communicated with the screwed hole of frame guard block 140, and the screw 137 fixed by utilizing doorframe 135 can cut down number of components.

In addition, when only be fitted and fixed with portion 151 just fully can guarantee confining force, also can not use screw fixed part 152.

Frame guard block 140 adopts the specification at the second refrigerating chamber door 105a and ice-making compartment door 106a dual-purpose, and suppression and the cost that can realize die cost reduce.

As described above, the present invention includes: by interior case, outer container be filled in the heat insulating box that the heat-barrier material between interior case and outer container formed; Multiple storerooms that the temperature field formed by the partition wall separated up and down the inside of heat insulating box is different; Be configured at the door of multiple storeroom front surface separately; The door seal that opening range (Inter mouth) front surface being located at Men Bingyu heat insulating box is close to; With with the doorframe of door mode supporting door to be opened/closed.And at least one door comprises: outside plate, inner panel, be filled in the foamed heat-insulating material between outside plate and inner panel and be embedded in the frame fixed part of foamed heat-insulating material, door is provided with frame guard block in storeroom side.According to this structure, the heat exchange that cooling doorframe can be suppressed to cause, reduces power consumption amount.

In addition, the present invention also can be provided with cold air guide member in the storeroom side of door.According to this structure, by the cold air at storeroom Inner eycle is guided to the position leaving the higher heat insulating box opening front surface of temperature, the heat exchange of cold air and the heat insulating box opening front surface circulated can be suppressed, power consumption amount can be reduced.

In addition, frame guard block and cold air guide member also can be integrally formed by the present invention.According to this structure, can not linking between parts, the flowing of cold air can be made smooth and easy, power consumption amount can be reduced by suppressing the pressure loss.In addition, also can realize number of components and cut down the cost reduction brought.

In addition, the present invention also can make the profile projected area ratio doorframe of frame guard block with the area of the stationary plane of inner panel and the large with at least one area in the area of the contact surface of inner panel of frame fixed part.According to this structure, the situation cool inner plate contact face of frame fixed part via inner panel with the stationary plane of inner panel and cold air of cold air cooling doorframe is suppressed, and effectively can suppress heat exchange thus, reduction power consumption amount.

In addition, the present invention also can frame guard block and doorframe and be configured with heat insulating member between the stationary plane of inner panel.According to this structure, can utilize frame guard block that cold air is not directly contacted with doorframe, and heat insulating member can be utilized to improve the thermal insulation of frame guard block inside.Therefore, doorframe or be suppressed via the frame fixed part of doorframe and the heat exchange of cold air, can reduce power consumption amount.

Utilizability in industry

As mentioned above, freezer of the present invention can be applicable to home-use and freezer that is business.

Symbol description

30 freezer main bodys

31 cryogenic temperature rooms

32 the 2nd refrigerating chambers

33 ice-making compartments

34 the 1st refrigerating chambers

36 refrigerating chambers

37 vegetable compartment

41,42,43,44 containers

50 partition members

50a cold air path

52,53,54 cold air discharge wind path

52a, 53a, 54a outlet

61 coolers

62 cooler rooms

63 blower fans

71

72 inner panels

73 door seals

74 foaming heat insulation parts

75 doorframes

76 frame fixed parts

76a leading section

77 screws

78 protuberances

79 metal abutment

80 cold air guide members

100 freezers

101 heat insulating boxes

101a Machine Room

102 outer containers

Case in 103

104 refrigerating chambers

The right door of 104a refrigerating chamber

104b refrigerating chamber left-hand door

104c refrigerating chamber shelf

104d refrigerating chamber box

105 second refrigerating chambers

105a second refrigerating chamber door

105b second refrigerating chamber box

106 ice-making compartments

106a ice-making compartment door

106b ice-making compartment box

107 first refrigerating chambers

107a first refrigerating chamber door

107b upper strata refrigerating chamber box

107c lower floor refrigerating chamber box

108 vegetable compartment

108a vegetable compartment door

108b upper strata vegetable compartment box

108c lower floor refrigerating chamber box

109 compressors

110 cooling chambers

111 partition members

111a storeroom side partition member

111b cooling chamber side partition member

111c air supply duct

112 coolers

113 blower fans

114 radiation heating unit

115 drain pans

116 drainpipes

117 evaporating pans

Partition wall on the upside of 118a

118b lower separation wall

120 upper nozzle

121 air doors

122 refrigerating chamber pipelines

125 return suction inlet

132 inner panels

133 sealing gaskets

134 foaming heat insulation parts

135 doorframes

135a stationary plane

136 frame fixed parts

136a contact surface

137 screws

138 protuberances

139 metal abutment

140 frame guard blocks

141 heat insulating members

150 cold air guide portion

151 are fitted and fixed with portion

152 screw fixed parts

Claims

1. a freezer, is characterized in that, comprising:

By interior case, outer container be filled in the heat insulating box that the heat-barrier material between described interior case and described outer container formed;

Multiple storerooms that the temperature field formed by the partition wall separated up and down the inside of described heat insulating box is different;

Be configured at the door of described multiple storeroom front surface separately;

The door seal that the opening front surface being located at heat insulating box described in described Men Bingyu is close to; With

The doorframe of described door is supported, wherein in described door mode to be opened/closed

Described at least one, door comprises: outside plate, inner panel, be filled in the foamed heat-insulating material between described outside plate and described inner panel and be embedded in the frame fixed part of described foamed heat-insulating material,

Described door is provided with frame guard block in described storeroom side.

2. freezer as claimed in claim 1, is characterized in that:

Cold air guide member is provided with in the described storeroom side of described door.

3. freezer as claimed in claim 2, is characterized in that:

Described frame guard block and described cold air guide member are integrally formed.

4. the freezer according to any one of claims 1 to 3, is characterized in that:

Make doorframe described in the profile projected area ratio of described frame guard block with the area of the stationary plane of described inner panel and the large with at least one area in the area of the contact surface of described inner panel of described frame fixed part.

5. the freezer according to any one of claims 1 to 3, is characterized in that:

Described frame guard block and described doorframe and be configured with heat insulating member between the stationary plane of described inner panel.