CN107166851B - Refrigerator - Google Patents

Abstract

The present invention provides a kind of refrigerator, the refrigerator make the small shape of compressor, lightweight and while so that the storage volume of lowest part storeroom is become larger, so that the center of gravity of refrigerator is moved downwards and is inhibited toppling over for refrigerator as far as possible.While reducing Machine Room height using the flat compressor of the flat pattern small relative to compressor lateral dimension height dimension, the total weight for making to be configured at the vacuum heat-insulation component above heat insulating box is less than the total weight for the vacuum heat-insulation component being configured at below heat insulating box.According to this feature, is reducing the size of Machine Room while increase the storage volume of lowest part storeroom, the center of gravity of refrigerator is moved downwards and is able to suppress a possibility that refrigerator is toppled over.

Description

Refrigerator

Technical field

The present invention relates to refrigeration or the refrigerators of stored frozen food, beverage, match more particularly to the lower part in heat insulating box Set the refrigerator of Machine Room.

Background technique

The refrigerator generally sold, configures refrigerating chamber on the heat insulating box top of thermal insulation, configures freezing chamber in middle part, Lower part configures vegetable compartment, divides respective storeroom each other by heat-insulated next door in the mobile few mode of heat.Also, in order to cold Each storeroom needs to generate cold air by refrigerating cycle, and refrigerating cycle is by compressor, cooler (evaporator), condenser, swollen Swollen valve etc. is constituted, and is mainly configured at the back side of heat insulating box.Moreover, because compressor weight weight, therefore it is heat-insulated by being placed in The lower part of box back surface.

It is recorded in the refrigerator such as Japanese Unexamined Patent Publication 2015-17737 bulletin (patent document 1) of this spline structure.

In patent document 1, heat insulating box has refrigerating chamber, ice-making compartment and top freezer compartment, lower freezer from top Room, vegetable compartment.Therefore, refrigerating chamber is the storeroom of probably+3 DEG C of refrigerating temperature zone, and vegetable compartment is probably+3 DEG C~+7 DEG C The storeroom of refrigerating temperature zone.In addition, ice-making compartment, top freezer compartment and lower freezer compartment are probably -18 DEG C of cryogenic temperatures The storeroom of band.

Machine Room is formed in the heat insulating box lower part of vegetable compartment depth side, in the wherein built-in compression for constituting refrigerating cycle Machine.In addition, cooler receiving room is connected to Machine Room by drainage channel, the condensed water of cooler is discharged.Also, the compressor Above to height generally have the height of 190mm~200mm or so, be using the bigger compressor of face shaping It is general.In addition, its weight is also 7~8kg or so, it is weight.

Existing technical literature

Patent document 1: Japanese Unexamined Patent Publication 2015-17737 bulletin

In order to inhibit the cold and hot to case outward leakage of storeroom in general refrigerator, becomes and fill hair into heat insulating box Bubble foam, the structure for also burying vacuum heat-insulation component thereto.The vacuum heat-insulation component is configured at the heat insulating box for constituting refrigerator Underside wall, side walls, back face wall, top wall and each storeroom switch gate on.Vacuum heat-insulation component is due to complete in multilayer Inorfil is laminated in portion and is made, so, weight ratio frothing foam weight.

But in existing refrigerator, the weight of compressor is 7~8kg or so, and the center of gravity of refrigerator can be made substantially low, A possibility that toppling over is small.On the other hand, if making the small shape of compressor, lightweight, by caused by the weight as vacuum heat-insulation component The position of centre of gravity for influencing refrigerator is moved upward, and the stability of refrigerator deteriorates as a result, and refrigerator is easy a possibility that toppling over raising.

And, as a reference, in the ice of the mode (gyro compressor mode) for the top surface side that compressor is configured to refrigerator In case, due to being located above by the center of gravity of compressor refrigerator, propose to utilize the vacuum heat-insulation being configured in heat insulating box Component makes the scheme that center of gravity moves downwards.That is, the weight for being located at the vacuum heat-insulation component on the downside of refrigerator is made to become weight, make to be located at top The influence of the compressor weight of surface side tails off.But this method must make the weight for being located at the vacuum heat-insulation component on the downside of refrigerator Quantitative change weight, the weight that can generate refrigerator entirety become heavier phenomenon.

Summary of the invention

The purpose of the present invention is to provide move the center of gravity of refrigerator downwards while a kind of inhibition refrigerator overall weight And it is able to suppress the new refrigerator that refrigerator is toppled over.

The present invention is characterized in that: while using the flat compressor small relative to refrigerator lateral dimension height dimension, The total weight for making to be configured at the vacuum heat-insulation component above heat insulating box is lower than the vacuum heat-insulation portion being configured at below heat insulating box The total weight of part.

Effect of the invention is as follows.

According to the present invention, inhibit that the vacuum heat-insulation portion being configured above heat insulating box can be made while refrigerator overall weight The total weight of part lightens and the center of gravity of refrigerator is made to move downwards and be able to suppress a possibility that refrigerator is toppled over.

Detailed description of the invention

Fig. 1 is the main view for the refrigerator that the present invention is applicable in.

Fig. 2 is the longitudinal sectional view of refrigerator shown in FIG. 1.

Fig. 3 is the main view for indicating to open the back part in the state of the door of refrigerator shown in FIG. 1.

Fig. 4 is the longitudinal sectional view for being used in the hermetic type compressor of embodiments of the present invention.

Fig. 5 is the transverse sectional view of hermetic type compressor shown in Fig. 4.

Fig. 6 A is the effect for illustrating hermetic type compressor shown in Fig. 4, the schematic diagram of effect.

Fig. 6 B is the effect for illustrating comparative example, the schematic diagram of effect.

Fig. 7 is the chart for indicating the relationship of bearing internal loss and (bearing length/diameter of axle).

Fig. 8 is the figure for indicating vibration with the relationship of (rotor radius/(height center-rotor height center of piston)) Table.

Fig. 9 is section view in the state of loading compressor shown in Fig. 4 as embodiments of the present invention, in Machine Room Figure.

Figure 10 is the figure for indicating the configuration example of the first vacuum heat-insulation component of embodiments of the present invention.

Figure 11 is the figure for indicating the configuration example of the second vacuum heat-insulation component of embodiments of the present invention.

Figure 12 is the figure for indicating the configuration example of third vacuum heat-insulation component of embodiments of the present invention.

Figure 13 is the figure for indicating the configuration example of the 4th vacuum heat-insulation component of embodiments of the present invention.

Figure 14 is the figure for indicating the configuration example of the 5th vacuum heat-insulation component of embodiments of the present invention.

Figure 15 is the figure for indicating the configuration example of the 6th vacuum heat-insulation component of embodiments of the present invention.

In figure: 3-closed containers, 3a-stage portion, 9-helical springs (elastomeric element), 10-rubber bases, 20-compressions Element, 21-cylinder bodies, 22-pistons, 23-crankshafts, 24-racks, 24a-pedestal, 24b-through hole, 24c-recess portion, 24d-extension, 25-radial bearings (bearing), 26-thrust bearings, 30-electric elements, 31-rotors, 32-stators, 70-refrigerating chambers, 70a, 70b-refrigerating-chamber door, 73-lower freezer compartments, 73a-lower freezer compartment door, 74-vegetable compartments, 74a-vegetable compartment door, 81b-underside wall, 81s-back face wall, the heat-insulated next door in 84-downsides, 105b-downside vegetables storage are held Device, 105u-upside vegetables accommodating container, 106-Machine Rooms, 107-condensate water discharging pipelines, 108-aqueducts, CMP-are close Closed form compressor, WB-bottom surface sections, WR-back part, WSL-left side face, WSR-right side face, WF-face portion, WC- Top part.

Specific embodiment

Hereinafter, being described in detail about embodiments of the present invention using attached drawing, the present invention is not limited to following Embodiment, various deformation example and application examples are also contained in its range in technical concept of the invention.

Before illustrating a specific embodiment of the invention, the knot for the refrigerator that the present invention is applicable in is illustrated based on Fig. 1 to Fig. 3 Structure.Fig. 1 is the front appearance figure of refrigerator, and Fig. 2 is the cross-sectional view for indicating the longitudinal profile of Fig. 1.Moreover, the ice-making compartment in Fig. 2 Section does not indicate.

In fig. 1 and fig. 2, refrigerator has refrigerating chamber 70, ice-making compartment 71 and top freezer compartment 72, lower freezer from top Room 73, vegetable compartment 74.Here, ice-making compartment 71 and top freezer compartment 72 left-right situs between refrigerating chamber 70 and lower freezer compartment 73 Setting.Moreover, top freezer compartment 72 is formed as smaller than 73 volume of lower freezer compartment, keep in cold storage a small amount of food.

Also, the temperature of each storeroom be as an example refrigerating chamber 70 be about+3 DEG C, vegetable compartment 74 be about+3 DEG C~+ The storeroom of 7 DEG C of temperature of refrigerating chamber band.In addition, ice-making compartment 71, top freezer compartment 72 and lower freezer compartment 73 be about- The storeroom of 18 DEG C of cryogenic temperature band.Wherein, hypobaric and refrigerated preservation room is formed in the bottom of refrigerating chamber 70.

Refrigerating chamber 70 has the refrigerating chamber for two fans door (so-called Francis) of left and right segmentation split around in front side Door 70a, 70b.Ice-making compartment 71, top freezer compartment 72, lower freezer compartment 73, vegetable compartment 74 are each provided with the ice-making compartment door of drawer type 71a, top freezer compartment door 72a, lower freezer compartment door 73a, vegetable compartment door 74a.

In addition, (not scheme along the gasket that built-in magnetite is respectively arranged in a manner of edge outdoors on the face of the storeroom side of each door Show), for when each door is closed with the flange of the refrigerator outer container formed by iron plate, aftermentioned each partition iron plate it is closely sealed and outside inhibition The structure that air is mutually stored indoor intrusion and revealed from the cold air of storeroom.

Here, Machine Room 76 is formed in the lower part of refrigerator main body 75 as shown in Figure 2, wherein compressor having internally mounted 77.It is cooling Device receiving room 78 is connected to Machine Room 76 by condensate water discharging valve 79, and the condensed water of cooler 80 can be discharged.

As shown in Fig. 2, the case of refrigerator main body 75 is outer and case is interior by passing through the heat-insulated material of filling-foam between interior case and outer container The heat insulating box 81 expecting (polyurathamc) and being formed separates.In addition, the heat insulating box 81 of refrigerator main body 75 installs multiple vacuum Heat insulating member 82.Vacuum heat-insulation portion is configured in the underside wall of heat insulating box 81, side walls (two sides), back face wall and top wall Part 82, cold and hot in case will not be to case outward leakages.

In addition, refrigerator main body 75 divides refrigerating chamber 70 and top freezer compartment 72 and ice-making compartment by the heat-insulated next door 83 in upside 71 (referring to Fig.1, ice-making compartment 71 is not shown in Fig. 2) divide lower freezer compartment 73 and vegetable compartment by the heat-insulated next door 84 in downside 74。

In the bottom of refrigerating chamber 70, decompression storeroom 85 is configured in the upper surface of heat-insulated next door 83 in upside, in order to take out Food in the decompression storeroom 85 and while pulling out decompression door of storage room, restores to atmospheric pressure, decompression door of storage room is restored to original Position and when closing refrigerating-chamber door 70a, 70b by the defined time, vacuum pump movement, which makes to depressurize storeroom 85, depressurizes.

In addition, diaphragm plate portion is arranged on the top of lower freezer compartment 73.Diaphragm plate portion separates ice-making compartment in the up-down direction 71 and top freezer compartment 72 and lower freezer compartment 73.In addition, the top setting in diaphragm plate portion in the lateral direction will ice making The midfeather portion of room 71 and top freezer compartment 72 being spaced apart.

Diaphragm plate portion with before the heat-insulated next door 84 in downside and before left and right sidewall together be set to lower freezer compartment Liner contact (not shown) on the face of the storeroom side of door 73a.By being set to ice-making compartment door 71a and top freezer compartment door The liner (not shown) and diaphragm plate portion, midfeather portion, the heat-insulated next door 83 in upside and refrigerator main body in the face of the storeroom side of 72a It is contacted before 1 left and right sidewall, inhibits the cold air between each storeroom and each door mobile respectively.

As shown in Fig. 2, top freezer compartment 72, lower freezer compartment 73 and vegetable compartment 74 are mounted in front of respective storeroom Door 72a, 73a, the 74a being had.In addition, being stored in top freezer compartment 72, configuring top freezer tank 86, in lower part It stored in freezing chamber 73, configure keep in cold storage container 87, lower layer of upper layer and keep in cold storage container 88.Moreover, being received in vegetable compartment 74 It receives, configure upper layer preservation of vegetables container 89, lower layer's preservation of vegetables container 90.

Also, ice-making compartment door 71a, top freezer compartment door 72a, lower freezer compartment door 73a and vegetable compartment door 74a are by dividing Do not hold handle portion (not shown) to front side pull out, haul out ice making tank (not shown), top freezer tank 86, Lower layer keeps in cold storage container 88, lower layer's preservation of vegetables container 90.

In detail, lower layer keep in cold storage container 88 on the support arm for being installed on refrigerating chamber door inner wall suspension lower layer freeze The flange part of the side surface upper part of tank 88 only pulls out lower layer while pulling out refrigerating chamber door 73a and keeps in cold storage container 88.On Layer keep in cold storage container 87 be placed in the side walls for being formed in freezing chamber 73 bump (not shown) and can be in the longitudinal direction Sliding.

Flange part is similarly suspended in the support being installed on the inner wall of vegetable compartment door 74a by lower layer's preservation of vegetables container 90 Arm, upper layer preservation of vegetables container 89 are placed in the bump of vegetable compartment side walls.It is fixed in addition, being arranged in the vegetable compartment 74 Electrothermal heater on heat insulating box 81 is become in mode that will not be too low by the temperature of the electrothermal heater vegetable compartment 74 Temperature suitable for preservation of vegetables.Moreover, as long as the electrothermal heater is set as needed, in the present embodiment for vegetables Be stored under more suitable environment and carry out and electrothermal heater is set.

Secondly, the cooling means about refrigerator is illustrated.Cooler receiving room 78 is formed on refrigerator main body, wherein Has cooler 80 as cooling body.Cooler 80 (as an example, fin-tube heat exchanger) is set to configuration in lower part In the cooler receiving room 78 at the back of freezing chamber 73.In addition, making in cooler receiving room 78 and in the top of cooler 80 For wind pushing mechanism, pressure fan 91 (as an example, propeller fan) is set.

The air of heat exchange and cooling is carried out in cooler 80 (hereinafter, the low of heat exchange will be carried out in cooler 80 Warm air is known as " cold air ") by pressure fan 91 via refrigerating chamber air supply duct 92, freezing chamber air supply duct 93 and not shown Ice-making compartment air supply duct, respectively to refrigerating chamber 70, ice-making compartment 71, top freezer compartment 72, lower freezer compartment 73, vegetable compartment 74 Each storeroom conveying.

Air-supply to each storeroom passes through the first air output control for controlling the air output to the refrigerating chamber 70 of refrigerating temperature zone Mechanism (hereinafter referred to as refrigerating chamber baffle 94) processed, control the top freezer compartment 72 to cryogenic temperature band, lower freezer compartment 73 is given The second air output control mechanism (hereinafter referred to as freezing chamber baffle 95) of air quantity is controlled.By the way, to refrigerating chamber 70, ice making Room 71, top freezer compartment 72, lower freezer compartment 73 and vegetable compartment 74 each air supply duct be set to ice as shown in phantom in Figure 3 The back side of each storeroom of box main body 1.Specifically, refrigerating chamber baffle 94 is in an open state, freezing chamber baffle 95 is pass When closed state, cold air is delivered to refrigerating chamber 70 from the blow-off outlet 96 being set as in multilayer via refrigerating chamber air supply duct 92.

In addition, cooling the cold air of refrigerating chamber 70 from the refrigerating chamber return port 97 for the lower part for being set to refrigerating chamber 70 via cold Hiding room-vegetable compartment connecting pipe 98 is from the vegetable compartment blow-off outlet 99 on the inside of the lower right for being set to the heat-insulated next door 84 in downside to vegetables Room 74 conveys.Vegetable compartment return duct in front of from the cold air that vegetable compartment 74 returns from the lower part for being set to the heat-insulated next door 84 in downside Entrance 98a is back to the lower part of cooler receiving room 78 from the outlet of vegetable compartment return duct via vegetable compartment return duct 98b.

As shown in Figure 2 and Figure 3, the setting of the front of cooler receiving room 78 by each storeroom and cooler receiving room 78 it Partition component 100 spaced apart.On partition component 100 as shown in Figure 3 it is upper and lower formed a pair of of blow-off outlet 101a, 101b, 102a, 102b, in freezing chamber 95 opening state of baffle, the cold air that heat exchange is carried out in cooler 80 is passed through by pressure fan 91 From the ice-making compartment air supply duct of illustration omitted, upper layer freezing chamber air supply duct from blow-off outlet 101a, 101b respectively to ice-making compartment 71, Top freezer compartment 72 is blown.In addition, via lower layer's freezing chamber air supply duct 103 from blow-off outlet 102a, 102b freezing chamber to the lower part 73 air-supplies.

It is equipped with the memory of CPU, ROM and/or RAM etc. in addition, being arranged in the top plate wall top side of refrigerator main body 75, connects The control device in mouth circuit etc., with outside air temperature sensor (not shown), chiller temperature sensor (not shown), refrigeration room temperature Degree sensor (not shown), freezer temperature sensor (not shown), detects door at vegetable compartment temperature sensor (not shown) respectively The door sensor (not shown) of the open and-shut mode of each door of 70a, 70b, 71a, 72a, 73a, 74a is set to 70 inner wall of refrigerating chamber The connection such as temperature setting device (not shown), pass through the program being equipped in ROM in advance, carry out the on-off of compressor 77 Deng control, respectively drive refrigerating chamber baffle 94 and freezing chamber baffle 95 the control of respective driver, pressure fan 91 On/off control and/or the quick-frozen control of rotation, report door open state the on/off of alarm etc. control.

It is such as above-mentioned in the refrigerator of this spline structure, it requires to become larger the storage volume of the lowest part storeroom of refrigerator recently. It is therefore desirable to make to be placed in, the compressor being formed in the Machine Room of heat insulating box lower part is small-sized, lightweight.But make to compress Machine is small-sized, lightweight, and the center of gravity of refrigerator entirety will be moved upward, lead to the problem of refrigerator and be easy to topple over.

The weight of compressor is 7~8kg or so in existing refrigerator, and the center of gravity of refrigerator can be made sufficiently low, toppled over Possibility is small.On the other hand, if making, compressor is small-sized, lightweight, by being influenced caused by the weight as vacuum heat-insulation component, The position of centre of gravity of refrigerator is moved upward, and thus the stability of refrigerator deteriorates, and refrigerator is easy a possibility that toppling over and increases.

Embodiment 1

Therefore, in the present embodiment, new design can make flat smaller than lateral dimension of the size of compressor short transverse The compressor of shape makes the height of Machine Room reduce and help by the way that the compressor of the flat pattern to be configured in Machine Room In the capacity for the storage volume for increasing lowest part storeroom, moreover, by making to be configured at the vacuum heat-insulation portion above heat insulating box The total weight of part is lighter than the total weight for being configured at the vacuum heat-insulation component below heat insulating box, so the center of gravity of refrigerator can be made downward Fang Yidong and a possibility that inhibit refrigerator to topple over.

Firstly, the structure about the flat compressor that the size of compressor short transverse can be made smaller than lateral dimension carries out Explanation.The compressing member of the compressor of present embodiment, which has, compresses system and diametrically reciprocating piston in cylinder body Crankshaft, the axis of cryogen support the bearing of crankshaft, and electric element has the rotor being fixed on crankshaft, applies rotary force to rotor Stator, using the length at the short transverse center from the center of the short transverse of piston to rotor as S, using rotor radius as When R, by keeping the size of compressor short transverse smaller than lateral dimension for " R/S≤0.8 ".

As shown in figure 4, the flat compressor CMP of hermetic type used in present embodiment is by compressing member 20 and electricity Dynamic element 30 is configured in closed container 3 and the so-called reciprocating compressor of composition.Compressing member 20 and electric element 30 exist It is elastically supported in closed container 3 by multiple helical springs 9 (elastomeric element).Closed container 3 is constituted with engagements such as welding The upper housing 3m of the gabarit of the roughly upper half and lower case 3n for constituting the substantially gabarit of lower half portion, has storage in inside The space of compressing member 20 and electric element 30.

Compressing member 20 has cylinder body 21, compresses the song of refrigerant and moving back and forth piston 22 in the cylinder body 21 Axis 23, axis support the radial bearing 25 of the crankshaft 23.Radial bearing 25 (bearing) and cylinder body 21 and rack 24 are integrally-formed. Crankshaft 23 is rotatably supported in rack 24 by thrust bearing 26.

Rack 24 has pedestal 24a substantially extending to the horizontal direction, and cylinder body 21 is located at the top of pedestal 24a.In addition, The centripetal of the cylindrical shape extended to (Xiang the bottom surface of lower case 3n) below vertical direction is formed in the substantially central portion of rack 24 Bearing 25.In addition, rack 24 constitutes a part of cylinder body 21.

Cylinder body 21 is formed in the position more deviated to radial outside compared to the central axis O of crankshaft 23.In addition, in cylinder body 21 Axial periphery side end on install cylinder cap 27, on the end of opposite side be inserted into piston 22.In this way, passing through cylinder body 21, cylinder Lid 27, piston 22 constitute discharge chambe (cylinder body room) Q1.Also, setting has in sucking refrigerant between cylinder body 21 and cylinder cap 27 When the inlet valve opened, the valve switching mechanism of ejection valve opened when spraying the refrigerant compressed.

Radial bearing 25 is made of the sliding bearing of axis support crankshaft 23.In addition, radial bearing 25 is by being formed in rack 24 Through hole 24b constitute.Thrust bearing 26 is formed near the through hole 24b above pedestal 24a with being configured at round channel-shaped Recess portion 24c.

The major diameter side end 22b of connecting rod 22a and aftermentioned crank-pin 23a links, and the path side end 22c of connecting rod 22a is logical It crosses pin 22d and piston 22 links.

Crank-pin 23a is formed on the upper end of crankshaft 23, crank-pin 23a is formed in the Pivot axle O from crankshaft 23 On the position of offset.In addition, the lower end of crankshaft 23 is near lower case 3n.By crank-pin 23a relative in rotation Mandrel O is eccentrically rotated, and piston 22 moves back and forth in cylinder body 21.

In addition, crankshaft 23 has above through hole 24b to direction (the level side orthogonal relative to Pivot axle O To) extend flange part 23b.Also, flange part 23b is the structure as counterweight in the present embodiment.Counterweight has reduction The function of being vibrated when compressing member 20 drives.Thereby, it is possible to reduce the height dimension of compressing member 20, facilitate hermetic type pressure The miniaturization of contracting machine CMP.

In addition, forming the bore hole 23c from axial lower end recessed shape upwards, on crankshaft 23 to have in crankshaft 23 There is the mode of hollow portion to constitute.In addition, on crankshaft 23 formed run through from the upper end of bore hole 23c it is upper above flange part 23b Portion intercommunicating pore 23d.

In addition, helicla flute 23e is formed to flange part 23b on the outer peripheral surface of crankshaft 23.The upper end of helicla flute 23e Portion is connected to by pin portion bore hole 23f, the pin portion intercommunicating pore 23g for the concave shape being formed on crank-pin 23a.

Stationary shaft member 28 is inserted into the hollow portion of crankshaft 23.Stationary shaft member 28 by setting tool (not shown) with The mode that will not be rotated when crankshaft 23 rotates is fixed.Fixing axle helicla flute is formed in the outer peripheral surface of stationary shaft member 28 28a.Spiral helicine oil passage is formed with the wall surface of the wall surface of fixing axle helicla flute 28a and bore hole 23c, with by crankshaft Wall surface caused by 23 rotation is mobile, lubricating oil drawn due to quasi-viscous effect by wall surface and in fixing axle helicla flute 28a on It rises.

The lubricating oil risen in bore hole 23c is blown out by upper communication hole 23d to flange part 23b, lubricating thrust bearing 26.In addition, in the helicla flute 23e of crankshaft 23 between the oil lubrication crankshaft 23 risen and radial bearing 25 while, lead to It crosses pin portion intercommunicating pore 23g to flow into the pin portion bore hole 23f of crank-pin 23a, lubricate near connecting rod 23a.Also, it is pushed away with having lubricated The mode for the bottom that the lubricating oil through hole 24s (referring to Fig. 4) of power bearing 26 etc. is back to closed container 3 is constituted.

Electric element 30 is configured at the downside (lower section of pedestal 24a) of rack 24, the structure comprising rotor 31 and stator 32 At.

Rotor 31 has the rotor core of laminated electromagnetic steel plate and constitutes, and the lower part of crankshaft 23 is fixed on by indentation etc.. In addition, rotor 31 is the radius R flat pattern bigger than thickness T1 (axial height).In addition, the thickness T1 of rotor 31 is (axial Highly) it is set as substantially half or so of the length L (bearing length) of radial bearing 25.

Stator 32 has the periphery for being configured at rotor 31 and by cylindric stator core and is formed in the stator core The iron core 32a of multiple slots composition in week, it is made up of the coil 32b that insulator (not shown) is wound in iron core 32a.Separately Outside, iron core 32a is the radical length W flat pattern longer than thickness T2 (axial height) in longitudinal section view visual angle of Fig. 7.Line Enclosing 32a is also the radical length flat pattern longer than thickness (axial height) in longitudinal section view visual angle of Fig. 4.In addition, iron core The thickness T2 (axial height) of 32a is constituted in a manner of with the thickness T1 of rotor 31 (axial height) same degree.In this way, In the case where keeping rotor 31 flat, also being expanded by the diameter of stator 32 is flat pattern, can be obtained for making to turn The torque of 31 rotation of son.

The rack 24 that compressing member 20 and electric element 30 is arranged such passes through multiple helical springs in closed container 3 9, it 9 is supported by elasticity.In addition, when compressing member 20 and electric element 30 generate vibration in the running, it is closed not to be contacted with The mode of the inner wall of container 3 designs in the state of presetting scheduled space CL.

Helical spring 9 is set to 21 side of the cylinder body (left side of compressor room side Q2, Fig. 4 for constituting 20 a part of compressing member Side) and 21 side opposite side of cylinder body (right side of anti-compressor room side Q3, Fig. 4).Also, in the present embodiment, helical spring 9 The front sides and inside in the direction orthogonal with the paper of Fig. 4 are set to total 4 on anti-discharge chambe side in discharge chambe side respectively (referring to Fig. 5).Also, all helical springs 9 all have identical shape and spring performance.In this way, by making spiral bullet Spring 9 is the configuration error in the case that single kind can prevent 9 variety classes of helical spring from mixing.But helical spring 9 Radical is not limited to 4, either 3, it is also possible to 5 or more.

In addition, rack 24 has the extension 24d that (radial outside) extends more to outer peripheral side than cylinder body 21.The extension 24d extends more to outer peripheral side compared to stator 32.In addition, forming the top for being embedded in helical spring 9 below extension 24d And the protrusion 24e kept.

In addition, rack 24 has even if in extension 24d opposite side extends prolonging for same degree with extension 24d Extending portion 24f.Extension 24f also extends compared to stator 32 more to outer peripheral side.In addition, being formed below extension 24f embedding The protrusion 24g on top and holding together in helical spring 9.

In the bottom surface of closed container 3, the protrusion in a manner of outstanding into closed container 3 is formed in the peripheral side of stator 32 Stage portion 3a.Stage portion 3a is merged with a part of side by a part of the bottom surface lower case 3n and becomes concave shape It constitutes.In addition, stage portion 3a is set on position corresponding with the position of helical spring 9.In addition, in the upper end shape of stage portion 3a The protrusion 3b for being fitted into and keeping at the lower part of helical spring 9.Protrusion 3b is located at more against the top than 31a below rotor 31.And And the pasta 40 of lubricating oil is located on the lower than 31a below rotor 31 in such a way that lubricating oil will not immerse rotor 31.

In addition, in the rubber base 10 of the lower part of each stage portion 3a setting resilient support closed container 3.The rubber base 10 is propped up It supports on the metal plate 11 on the lower case 3n for being fixed on closed container 3.In addition, rubber base 10 be configured at vertical direction (on Lower direction) on the position Chong Die with helical spring 9.

Fig. 5 is the transverse sectional view of hermetic type compressor represented in Fig. 4.Also, in Fig. 5, about hermetic type pressure Refrigerant flowing in contracting machine CMP is illustrated.

As shown in figure 5, returning from the cooler of refrigerator and being imported from the intake line 3e that perforation closed container 3 connects Refrigerant from absorbing silencer 41 suction inlet sucking (not shown) after it is equal to discharge chambe Q1 by cylinder cap 27 (referring to Fig. 4) It imports.In addition, passing through discharge chamber space (not shown) by the refrigerant that piston 22 compresses in discharge chambe Q1, by being formed in Ejection muffler 42a, 42b and pipeline 3f in rack 24 are conveyed from ejection passage 3g to cooler.

Fig. 6 A is the effect for illustrating the hermetic type compressor in present embodiment, the schematic diagram of effect, and Fig. 6 B is to illustrate ratio Compared with the effect of the existing hermetic type compressor in example, the schematic diagram of effect.

It is electronic in the compressing member of the configuration up and down 20B and electric element 30B of rack 24B in the comparative example shown in Fig. 6 B Element 30 is elastically supported by helical spring 9B, 9B in closed container 3B.In this case, due to the (compression of internal mechanism portion Element 20B and electric element 30B) center of gravity be located at it is more against the top than the upper end of helical spring 9B, 9B, therefore in the running to two When arrow direction is vibrated, vibration angle b becomes larger.

In contrast, compressing member 20 is configured on the top of rack 24, in lower part in the present embodiment shown in Fig. 6 A Electric element 30 is configured, rack 24 is elastically supported by helical spring 9,9 in closed container 3.In this case, when operating Compressing member 20 and electric element 30 are vibrated to two arrow directions respectively, since center of gravity is located at the height and position of rack 24 (with spiral shell Revolve the mutually level position in upper end of spring 9,9), so angle of throw a (< b) becomes smaller.

In this way, compressing member 20 is configured in the upside of rack 24, in the downside of rack 24 in hermetic type compressor CMP Electric element 30 is configured, is elastically supported by rack 24 by helical spring 9,9, the vibration in internal mechanism portion can be reduced.And And the peripheral side by the way that the position of helical spring 9 to be configured to cylinder body 21, it can more effectively inhibit the vibration in internal mechanism portion It is dynamic.

In addition, in the present embodiment, compared with can reduce vibration compared with comparative example and angle of throw a made to become smaller, energy The space CL (referring to Fig. 4) between internal mechanism portion (compressing member 20 and electric element 30) and closed container 3 is enough set to shorten. As a result, it is possible to make closed container 3 become smaller, the miniaturization of hermetic type compressor CMP can be sought.

In addition, in the rubber base 10 of the lower part of each stage portion 3a setting resilient support closed container 3 (referring to Fig. 4).The rubber Rubber base 10 is supported on the metal plate 11 on the lower case 3n for being fixed on closed container 3.In addition, rubber base 10 is configured in lead In vertical direction (up and down direction) on the position Chong Die with helical spring 9.

By being thusly-formed stage portion 3a, helical spring 9 is configured on stage portion 3a, helical spring 9 can be arranged not In the height of meeting dip lubrication oil, therefore the noise that can prevent helical spring 9 from generating in lubricating oil internal vibration, it can seek The tranquilization of hermetic type compressor CMP.In addition, rubber can be prevented by the lower part that rubber base 10 is configured to stage portion 3a The lower case 3n of seat 10 from closed container 3 is downwards bigly prominent, and the height for being able to suppress hermetic type compressor CMP is got higher, can Seek the miniaturization of hermetic type compressor CMP.

But due to the weight for configuring cylinder body 21, piston 22 etc. on compressor room side Q2, it is compared to anti-compressor room Q3 (with compressor room's side opposite side) weight in side becomes weight, and the load for acting on helical spring 9 becomes larger.In this case, if making spiral The type of spring 9 is identical and keeps the height of the 9 lower end bearing surface of helical spring of both sides identical, then the amount of sinking of compressor room side Q2 (shrinkage) becomes more, and internal mechanism portion 20,30 is inclined state in the A-stage before operating.Additionally, it is contemplated that when operating Vibration (inclination) between closed container 3 and internal mechanism portion installation space (surplus).But if making the height in the face abutted It is identical, due to a possibility that colliding in closed container 3 there are internal mechanical portion, just produce significantly the necessity for ensuring space Property, compressor enlargement.

It therefore, in the present embodiment, is with the spiral winding 9 in (21 side of cylinder body, the left side of Fig. 7) compressor room side Q2 What the lower end of helical spring 9 of the height than anti-compressor room side Q3 (right side of Fig. 4) for the bearing surface 3c that lower end abuts abutted supports The device that the high mode of the height of junction 3d is constituted.Also, as above-mentioned, all helical springs 9 are with identical (shape and spy Property) type spring constitute.The difference of the height of the height and bearing surface 3d of bearing surface 3c is set as supporting with helical spring 9 When, interior structural component is the value of horizontality in the A-stage before operating.

In this way, by keeping the height of bearing surface 3c higher than the height of bearing surface 3d, being transported in hermetic type compressor CMP A-stage before turning can inhibit inside when operating due to that can support internal mechanism portion with horizontality smaller The inclination of mechanism part.As a result, the space CL (referring to Fig. 4) between confined space 3 and internal mechanism portion can be set smaller, it can Realize the miniaturization of hermetic type compressor CMP.

Also, the height in the above description, the enumerating bearing surface 3c situation different from the height of bearing surface 3d is as example Son is illustrated, but can also make the identical height of bearing surface 3c, 3d, below extension 24d, 24f of rack 24 Highly, height and position of the height and position of the extension 24d of compressor room side Q2 than the extension 24f of anti-compressor room side Q3 It is high.

Fig. 7 is the chart for indicating [bearing internal loss] Yu [bearing length/diameter of axle] relationship.Also, " bearing internal loss " passes through Compressor is operated under identical operating condition to carry out the comparison of compressor input (consumption electric power) and obtain.Here identical operating Condition refers to the sucking of compressor and the pressure of ejecting fluid, temperature, the rotation speed of compressor, ambient temperature etc..

The input of compressor is by inciting somebody to action " the theoretical power needed when compression refrigerant ", " hot-fluid bulk diffusion " (refrigerant Overheat, pump leakage caused by lose), " motor loss " while being rotary force (loss) by electrical power conversion, " mechanical damage Mistake " (frictional force of sliding part (bearing etc.)) is added together and obtains.Only change bearing designation, by under identical operating condition Obtained experimental result can be judged as that the small device of input is more superior.

In addition, as needed, it can be used and also add the COP (cold power/input) of cold power and be compared.In addition, " bearing length Degree L " is the axial length (referring to Fig. 7) for supporting the radial bearing 25 of periphery (side) of crankshaft 23, and " diameter of axle D " is crankshaft 23 Diameter (referring to Fig. 4).

But the advantages of making compressor miniaturization especially when product (for example, refrigerator) is packed into, is big, but low in exploitation height Compressor in the case where there are following projects.

In order to inhibit the height of compressor, it is compared to the prior art and needs to shorten bearing length (bearing length).But There are optimal ratios between bearing length, the diameter of axle (diameter of crankshaft 23).In general bearing, the bearing length/diameter of axle In the case that (hereinafter, as α) is 2 or more, the lubrication for being known as design bearing is good.

As shown in phantom in Figure 7, this is theory of the axis in bearing premised on the parallel bearing of keeping parallelism.Another party Face, in the bearing of reciprocating compressor etc., due to crank-pin is eccentrically rotated and according to operating condition generate axis inclination, As shown in solid in Fig. 7, in the case where α < 2.5, with α increase, the loss in bearing is reduced, even if α in α≤2.5 The loss increased in bearing also keeps lower value.It also can experimentally confirm that generation is above-mentioned in the range of α < 2.5 as a result, Project.

Subsidiary, in the solid line of Fig. 7, the case where α < 2.0 is " metal contacts " that bearing is in contact with each other with the solid of axis The case where region , α≤2.5 is the region for clamping " fluid lubrication " that the solid of lubricating film (oil film) bearing and axis is in contact with each other, The case where 2.0≤α < 2.5 be the inadequate thickness of lubricating film, bearing and shaft portion solid contact " boundary lubrication " Region.

As the technical reason for generating such project, there is also economy and achievable processing in the gap of bearing and axis The margin of tolerance also can not be extremely short even if bearing length shortens, and is unpractical in the design of bearing.

On the other hand, since bearing length shortens, the inclined angle of axis increases if gap having the same, as its knot The inclination of the axis (crankshaft) of fruit compressor becomes larger, and while the loss in bearing increases, the coefficient of friction in bearing becomes larger, and hinders The smooth rotation of axis can confirm that the increased tendency of vibration.

Therefore, because being to be increased with the shortening of bearing by the inclined range of axis and led to the problem of, if it is possible to press down The inclination of axis processed is just able to solve project.Therefore, in the present embodiment, by making the outer diameter 2R of rotor 31 compare the prior art It greatly, is the content that can be obtained rotates effe representated by gyro (gyro) and solve project.

Fig. 8 is to indicate " to vibrate " and the figure of the relationship of " rotor radius/(height center-rotor height center of piston) " Table.Also, " vibration " is compared and is obtained by operating compressor under identical operating condition and carrying out the vibration of compressor.Here Identical operating condition refers to the sucking of compressor and the pressure of ejecting fluid, temperature, the rotation speed of compressor, ambient temperature Deng.In general, connect compressor is operated in refrigerating cycle.Furthermore it is possible to be connected to as assembling object product Refrigerator, simulation product in pattern refrigerating plant (so-called refrigerant operating) and verified.It, can as easy method It is verified with being operated under the state (so-called air operating) for making sucking and ejection atmosphere opening.

The measurement of vibration can compressor gabarit in operation, installation foot nearby or near the connecting pipe of product, It carries component of compressor etc., there is the setting vibration measurement mechanism on the position influenced of vibrating of compressor to measure.In addition, It can be the method that the intracorporal compression mechanical part setting vibration measurement mechanism of the shell in compressor measures.In addition, about vibration The evaluation method of dynamic measurement can also be left to be equivalent to front and back in addition to the vibration of the flexible so-called up and down direction with spring Vibration on the inclined direction of the compression mechanical part of right direction is evaluated, and can also will be combined with the Quadratic Finite Element of those to three times The vibration synthesis of member is evaluated.

In addition, " rotor radius R " is the radius (referring to Fig. 4) of rotor 31, " the height center H1 of piston " is piston 22 The height and position (referring to Fig. 4) of the half of height, " the height center H2 of rotor " is the half of the height of rotor 31 Height and position (referring to Fig. 4).In addition, below by rotor radius R/ (the height center H2 of the height center H1- rotor of piston) =R/S is as β.

As shown in figure 8, the case where the case where α < 2.5 can be divided into Yu α≤2.5.In the case where α≤2.5, with Fig. 8 In " ▲ " indicate existing pattern compressor in, even if in the case where change β (=R/S) in 0.5~1.2, vibrate Big variation can not be found in value.This is considered that, due to bearing length L (referring to Fig. 4) long enough, the inclination of axis is difficult to produce Raw, the influence that the diameter of rotor 31 is different is small.

On the other hand, in the case where α < 2.5, in the compressor indicated with "●" in Fig. 8, since bearing length shortens, Deteriorate in β=0.5 compared to the vibration of compressor value of existing pattern.In addition, if can understand makes β value between 0.5 to 1.2 Variation, then rotates effe increases, and vibration values are successively decreased.In addition, in β≤0.8, can confirm that hold relative to existing compressor it is aobvious It writes sex differernce and can reduce vibration values.

Therefore, in the present embodiment, after realization inhibits the compressor of flat pattern of height, inhibition can not be kept away The bearing inclination generated by inhibition bearing length L exempted from, can be realized the compression of the bearing with low loss and high reliablity Machine.

But it is general situation that the axis of reciprocating compressor is slightly angled slided according to condition.Therefore, for bearing It is not contacted with axis, therefore, to assure that bearing length L, miniaturization difficult.Therefore, in hermetic type compressor CMP, pass through β (=R/S) ≤ 0.8, using the 31 bring rotates effe of rotor by flat pattern, it is able to suppress the axis (crankshaft 23) in compressor operation Inclination can obtain making bearing (radial bearing 25) with the angle of axis (crankshaft 23) to be compared to the prior art closer parallel Effect.

In addition, in hermetic type compressor CMP, as α (=L/D) < 2.5 by the length of bearing (radial bearing 25) In the case that (bearing length L) substantially shortens, if assembling existing shaped (in axial length) rotor oscillation just will increase, pass through β ≤ 0.8, vibration can be inhibited, can be miniaturised.

According to structure as above, the height dimension of compressor CMP can be made to shorten in the present embodiment, moreover, It is accompanied by this weight that can make compressor.Weight is 7~8kg in existing compressor, in the present embodiment may be used Inhibit in about 6kg or less.

Also, the pattern appropriate as the compressor CMP being used on refrigerator in the present embodiment, makes height dimension It is about 130mm hereinafter, making its weight about 6kg hereinafter, preferably 5kg or less.Moreover, making the short transverse as compressor The flat ratio (height dimension/lateral dimension) of size and the ratio of lateral dimension is 70% or less.If by the flat of such form Flat compressor is used on refrigerator, and the storage volume for being located at the storeroom in front of Machine Room can be made sufficiently large.

Secondly, the compressor of the size of the compressor short transverse flat pattern smaller than lateral dimension is configured at Machine Room In, facilitate expand Machine Room on the upside of and heat-insulated next door between area of space and increase storeroom storage volume capacity, Illustrate the increased embodiment of storage volume that can make to be located at the storeroom in front of Machine Room based on Fig. 9.

Fig. 9 indicate using it is above-mentioned make height dimension be about 130mm or less, weight is about 6kg or less, flat ratio is about Refrigerator in the case where 70% flat compressor below.Moreover, reference number is diverted used in FIG. 1 to FIG. 3 referring to volume Number while, increase new reference number as needed and be illustrated.

In Fig. 9, vegetable compartment 74 is formed in the upper region of the underside wall 81b of heat insulating box 81, vegetable compartment 74 passes through heat-insulated Next door 84 and 73 shield heat away of lower freezer compartment.Cooler 80 is configured at the back side of lower freezer compartment 73, below cooler 80 Configure radiator 104.

Vegetable compartment door 74a is set in the front openings of vegetable compartment 74.If downside will be pulled out by pulling out vegetable compartment door 74a Vegetables accommodating container 105b, user can also pull out upside vegetables accommodating container 105u in this case.These downside vegetables are received The container 105b and upside vegetables accommodating container 105u that receives is incorporated in vegetable compartment 74, by supplying from cold air blow-off outlet (not shown) Cold air be cooled to scheduled temperature according to the foregoing description.

The downside of the back face wall 81s of heat insulating box 81 forms the Machine Room 106 for being determined as new height dimension, the Machine Room 106 are located at than 74 backrest surface side of vegetable compartment.Condenser is configured in order along the back side of vegetable compartment 74 in Machine Room 106 (not scheme Show), cooling fan (not shown) and new compressor CMP.

The new compressor CMP be above-mentioned flat pattern compressor, style be height dimension be about 130mm or less, Weight is about 6kg or less, flat ratio is about 70% compressor below.As shown in figure 9, due to being the transverse direction relative to compressor The flat pattern that size (Wp) height dimension (Tp) is constituted smallly, thus the height dimension of Machine Room 106 also cooperate the size and Become smaller.Moreover, flat ratio (Ob) is indicated with " Ob=Tp/Wp × 100 ".In addition, lateral dimension (Wp), height dimension (Tp) both may be used To be the full-size of transverse direction and short transverse, it is also possible to average-size.

Since the underside wall 81b of heat insulating box 81 is substantially formed along the shape of Machine Room 106, on Machine Room 106 The case where height on the ground of lateral extent underside wall 81b is than existing refrigerator is low.Therefore, can make to be located at 106 upside of Machine Room The heat-insulated next door 84 underside wall 81b and downside between Machine Room upper area SP short transverse length (Lp) it is elongated.

In addition, in order to as far as possible by condensate water discharging pipeline 107 close to the back side of heat insulating box 81, condensate water discharging pipeline Formed to 107 straight tube-likes.Since existing condensate water discharging pipeline is curved shape, it can correspondingly make heat insulating box 81 Back face wall 81s thickens.In contrast, being in the present embodiment the condensate water discharging pipeline 107 of straight tube-like, heat insulating box can be made 81 back face wall 81s is thinning.Therefore, the length Lh of the depth direction of Machine Room upper area SP can be made elongated.Moreover, length Lh is the length positioned at the depth direction of the underside wall 81b of the heat insulating box 81 of 106 upside of Machine Room.In the present embodiment, For using the 74 side front end face of vegetable compartment of compressor CMP as the length of the depth direction of starting point.

In addition, the heat-insulated next door 84 in downside is connect with back face wall 81s by aqueduct 108, the section of aqueduct 108 is in downside The inclined direction bending in the downward side bending section D of heat-insulated 84 side of next door, almost linearly extends and is connected to back face wall 81s. Thereby, it is possible to keep the depth end 105e of aftermentioned upside vegetables accommodating container 105u longer.

In this way, by the present embodiment using the compressor CMP of the flat pattern of above-mentioned pattern, since machine can be made The length Lp of the short transverse of tool room upper area SP is elongated, therefore the storage volume of vegetable compartment 74 can be made to become larger.In addition, removing Since the length Lh of the depth direction of Machine Room upper area SP can be made elongated except this, it can further make vegetable compartment 74 storage volume becomes larger.

Also, with these due to forming upside along by the shape of the widened vegetable compartment 74 of Machine Room upper area SP Vegetables accommodating container 105u, thus it is possible to store more vegetables.Certainly, the shape of downside vegetables accommodating container 105b can also It changes as needed.Alternatively, it is also possible to which upside vegetables accommodating container 105u and downside vegetables accommodating container 105b is integrated Change, becomes a vegetables accommodating container.As long as also edge passes through the widened vegetable compartment 74 of Machine Room upper area SP in this case Shape formed vegetables accommodating container.

Secondly, each size relationship about new vegetable compartment as obtained from present embodiment is illustrated.

As shown in figure 9, the Machine Room height Lm of the height as the bottom surface from Machine Room 106 to top plate, from be located at machinery The upper surface of underside wall 81B of heat insulating box 81 of the upside of room 106 to heat-insulated 84 bottom surface of next door in downside Machine Room upper area SP Height Lp have " Lm < Lp " relationship.Thereby, it is possible to make height dimension (depth) change of upside vegetables accommodating container 105u Greatly, due to can further stretch out the depth end 105e of upside vegetables accommodating container 105u to Machine Room upper area SP, because This can make the storage volume of upside vegetables accommodating container 105u become larger.

In addition, upside can be made since Machine Room upper area SP is to the expansion of the side back face wall 81s of heat insulating box 81 Vegetable compartment side front end face of the depth end 105e of vegetables accommodating container 105u than compressor CMP is extended inwardly with length Gp1, The storage volume of upside vegetables accommodating container 105u can be further set to become larger.

Same reason can make the depth end 105e of upside vegetables accommodating container 105u than the bending section of aqueduct 108 Extended inwardly with length Gp2, the storage volume of upside vegetables accommodating container 105u can be made to become larger.Moreover, because aqueduct 108 almost linearly tilt from bending section D, therefore the upper edge of the inclined surface of aqueduct 108 and depth end 105e will not Interference can be such that depth end 105e further extends to depth.

In addition, being maintained in+3 DEG C~+7 DEG C of temperature band due to vegetable compartment 74, in order not to be subcooled, setting electric heating is heated Device, the electrothermal heater are set to 74 side of vegetable compartment in the heat-insulated next door 84 in downside.Therefore, the heat of electrothermal heater flows through freezing A possibility that temperature that 73 side of room can have freezing chamber 73 rises.

In contrast, since Machine Room upper area SP in the present embodiment is to the side back face wall 81s of heat insulating box 81 Expand, electrothermal heater can be made to configure close to the expansion side.As a result, between lower freezer compartment 73 and electrothermal heater away from From length, the ratio that the heat of electrothermal heater can be made to flow through 73 side of lower freezer compartment becomes smaller, and is able to suppress lower freezer compartment 73 Temperature rise.

More than, about the compressor for newly designing the flat pattern for keeping the size of compressor short transverse smaller than lateral dimension, Being lower by the height for being configured in Machine Room, making Machine Room for the compressor of the flat pattern helps to increase lowest part storage The capacity for hiding the storage volume of room is illustrated.

Secondly, being said about the structure for inhibiting small-sized along with compressor, lightweight refrigerator center of gravity to be moved upward It is bright.The basic idea of the structure be make to be configured at the total weight of the vacuum heat-insulation component of the top of heat insulating box lower than be configured at every The total weight of vacuum heat-insulation component below hot tank body, thus inhibit the center of gravity of refrigerator to move downwards and make that refrigerator topples over can It can property.

Figure 10 is the first exemplary figure for indicating to make the weight above refrigerator.In Figure 10, drawing is by refrigerator The figure that each face is unfolded in the plane, it be back part, reference number WSL is left side that reference number WB, which is bottom surface sections, reference number WR, It is that face portion and reference number WC indicate top part that face, reference number WSR, which are right side face, reference number WF,.

Configure above-mentioned flat compressor CMP in the Machine Room of refrigerator 106, the Machine Room 106, flat compressor CMP Size relationship is according to shown in Fig. 9.Here, flat compressor CMP makes height dimension be about 130mm or less, weight be about 6kg with Under, flat ratio be about 70% or less.

In Figure 10, it is arranged on bottom surface sections WB, back part WR, left side face WSL, right side face WSR, top part WC true Empty heat insulating member 82.In addition, being also provided with vacuum heat-insulation on vegetable compartment door 74a, the lower freezer compartment door 73a for constituting face portion WF Component 82.On the other hand, vacuum heat-insulation is not provided on ice-making compartment door 71a, top freezer compartment door 72a, refrigerating-chamber door 70a, 70b Component 82.

Vacuum heat-insulation component 82 is made of core material with having the outsourcing material for the gas-insulated layer for covering the core material.Core material makes With the laminated body of inorganic fiber material, the gas adsorption material of synthetic zeolite etc. is stored in inside.Outsourcing material is true to be formed The mode on empty heat insulating member two sides is formed as applying from the crest line of the layered membrane of same size by thermosol by the part of one fixed width What is be bonded is bag-shaped.Also, the thickness of the vacuum heat-insulation component 82 is determined as almost uniform thickness on comprehensively.

In the Figure 10, basic reduction is located at than 70 downside boundary line of refrigerating chamber present in refrigerating-chamber door 70a, 70b The total weight of the vacuum heat-insulation component 82 in C-C upper region.Moreover, in ice-making compartment door 71a, top freezer compartment in Figure 10 It is also not provided with vacuum heat-insulation component 82 on door 72a and mitigates the weight above refrigerator.

Here, in present embodiment substantially, refer to above so-called refrigerator more top than the downside boundary line C-C of refrigerating chamber 70 The region of side refers to the region on the lower downside boundary line C-C than refrigerator 70 below refrigerator.This by shutter door side vacuum every Thermal part is divided in each shutter door, there is the less than half of length of refrigerator short transverse to come by refrigerating-chamber door 70a, 70b It determines.But it is without being limited thereto, can be using the top half of refrigerator as top, using lower half portion as below, such case Under, vacuum heat-insulation component 82 can be divided in advance with this cooperation.

In this way, vacuum heat-insulation component is at least not provided on refrigerating-chamber door 70a, 70b in Figure 10, due to making to be configured at The total weight of vacuum heat-insulation component 82 above heat insulating box is lower than the total of the vacuum heat-insulation component being configured at below heat insulating box Weight, be able to suppress by using small shape, light-weighted flat compressor and the center of gravity generated is moved upward.Thereby, it is possible to make A possibility that refrigerator is toppled over is lower.

But in order to mitigate the weight above refrigerator, due to if omitting vacuum heat-insulation component 82 whole above refrigerator A possibility that being greatly reduced there are heat-proof quality, it is therefore desirable to necessary minimally to retain.

In addition, omitting the vacuum heat-insulation component 82 of refrigerating-chamber door 70a, 70b in Figure 10 and making refrigerating-chamber door 70a, 70b It lightens.Therefore, when opening refrigerating-chamber door 70a, 70b, in the case where having vacuum heat-insulation component 82, center of gravity is to front sidesway It moves and is easy to topple over.In contrast, the situation in Figure 10 becomes due to omitting the vacuum heat-insulation component 82 of refrigerating-chamber door 70a, 70b Gently, therefore the center of gravity ratio mobile to front side can be mitigated, can reduce a possibility that toppling over.

Embodiment 2

Figure 11 is the second exemplary figure for indicating to make weight above refrigerator.It is also that each face of refrigerator is unfolded in Figure 11 Figure in the plane.It is omitted the description about reference number identical with Figure 10.

In Figure 11, vacuum heat-insulation component 82 is set on refrigerating-chamber door 70a, 70b, omits the vacuum heat-insulation of top part WC Component 82.Even if also at least vacuum heat-insulation component 82 is not provided in top part WC, due to making to be configured at heat insulating box in Figure 11 The total weight of the vacuum heat-insulation component 82 of top is lower than the total weight for the vacuum heat-insulation component being configured at below heat insulating box, can Inhibit by using small shape, light-weighted flat compressor and the center of gravity generated is moved upward.Thereby, it is possible to reduce refrigerator to topple over A possibility that.Moreover, it is located at the vacuum heat-insulation component 82 of the top part WC of extreme higher position in refrigerator due to omitting in Figure 11, because This has the effect for moving the center of gravity of refrigerator further in downward direction.

Embodiment 3

Figure 12 is indicated the exemplary figure of the third of the weight above refrigerator.It is also by each of refrigerator in the Figure 12 The figure of face expansion in the plane.It is omitted the description about reference number identical with Figure 10.

Figure 12 is by the figure of example combination represented by Figure 10 and Figure 11, by the vacuum heat-insulation component 82 of top part WC, cold The vacuum heat-insulation component 82 for hiding room door 70a, 70b omits.According to the third example, by further mitigating the weight above refrigerator Amount, be able to suppress by using small shape, light-weighted flat compressor and the center of gravity generated is moved upward.Thereby, it is possible to reduce A possibility that refrigerator is toppled over.In addition, it is identical as the example in Figure 10, due to the vacuum heat-insulation component 82 of refrigerating-chamber door 70a, 70b It is omitted and lightens, the center of gravity ratio mobile to front side can be reduced, a possibility that rolling forward can be reduced.

Embodiment 4

Figure 13 is indicated the 4th exemplary figure of the weight above refrigerator.It is also by each face of refrigerator in the Figure 13 The figure of expansion in the plane.It is omitted the description about reference number identical with Figure 10.

In Figure 10~Figure 12, be omit the vacuum heat-insulation component 82 of top part WC, refrigerating-chamber door 70a, 70b vacuum every The figure of thermal part 82.According to these examples, exist the refrigerating chamber 70 from refrigerator it is cold and hot from top part WC, refrigerating-chamber door 70a, A possibility that 70b is to case outward leakage.

The expression of 4th example shown in Figure 13 is able to suppress while moving the center of gravity of refrigerator downwards to case outward leakage Cold and hot structure.

In Figure 13, the bottom surface sections WB of refrigerator, back part WR, left side face WSL, right side face WSR, top part WC with And vacuum heat-insulation component 82 is set on face portion WF.But the vacuum heat-insulation component 82 of top part WC, refrigerating-chamber door 70a, 70b Thickness compared to be set to other than these composition bottom surface sections WB, back part WR, left side face WSL, right side face WSR and The vacuum heat-insulation component 82 of the vegetable compartment door 74a of face portion WF, downside refrigerating chamber door 73a, thickness thinly forms.

Therefore, the weight of the vacuum heat-insulation component 82 of top part WC, refrigerating-chamber door 70a, 70b and thickness is thinning correspondingly subtracts Gently, so being able to suppress by the movement of the center of gravity generated upwards using small shape, light-weighted flat compressor.

In addition, top part WC, refrigerating-chamber door 70a, 70b thickness are thinning, but since vacuum heat-insulation component 82 is arranged, compared to Example shown in Figure 10~12 can make to reduce from refrigerating chamber 70 to the ratio of case outward leakage cold air.

Moreover, using the downside boundary line C-C of refrigerating chamber 70 as boundary line will be configured at back part WR, side surface part WSR, Vacuum heat-insulation component 82 on WSL is divided into two parts, by making the vacuum positioned at the region more upper than downside boundary line C-C The thickness of heat insulating member 82 is thinning, and the weight above refrigerator can be made further to mitigate.Thereby, it is possible to inhibit by using small shape, Light-weighted flat compressor and the movement of the center of gravity generated upwards.

Embodiment 5

Above-mentioned Figure 10~Figure 13's illustrates the example for moving downward the center of gravity of refrigerator up and down direction, secondly, saying It is bright by the refrigerator center of gravity mobile example in side backward in the front-back direction.

Figure 14 is the 5th example for indicating to make the weight saving of refrigerator front side.It is also by each face of refrigerator in the Figure 14 The figure of expansion in the plane.It is omitted the description about reference number identical with Figure 10.

In Figure 14, it is arranged on bottom surface sections WB, back part WR, left side face WSL, right side face WSR, top part WC true Empty heat insulating member 82.On the other hand, in vegetable compartment door 74a, the lower freezer compartment door 73a, ice-making compartment door for constituting face portion WF 71a, top freezer compartment door 72a, vacuum heat-insulation component 82 is not provided in refrigerating-chamber door 70a, 70b.

If being not provided with vacuum heat-insulation component 82 in face portion WF in this way, side is mobile backward for the center of gravity of refrigerator.Certainly, due to In the not set vacuum heat-insulation component 82 of refrigerating-chamber door 70a, 70b, therefore, center of gravity can also be moved downward.

Therefore, by the center of gravity of refrigerator, side is mobile backward, can reduce a possibility that refrigerator rolls forward.That is, constituting Vegetable compartment door 74a, lower freezer compartment door 73a, refrigerating-chamber door 70a, 70b of face portion WF is opened to front side.Therefore, it is opening When vegetable compartment door 74a, lower freezer compartment door 73a, refrigerating-chamber door 70a, 70b, in the case where having vacuum heat-insulation component 82, weight The heart is mobile to front side, is easy to topple over.In contrast, the situation in Figure 14 is due to being omitted vegetable compartment door 74a, lower freezer compartment Door 73a, refrigerating-chamber door 70a, 70b vacuum heat-insulation component 82 and lighten, therefore center of gravity reduces to the mobile ratio in front side, energy It is enough to reduce a possibility that toppling over.

Here, omitting vegetable compartment door 74a, the lower freezer compartment door 73a, refrigerating-chamber door for constituting face portion WF in Figure 14 The vacuum heat-insulation component 82 of 70a, 70b.Therefore, it is cold and hot from the refrigerating chamber 70 of refrigerator, lower freezer compartment 73, vegetable compartment 74 to outside case A possibility that leakage, is big.

Embodiment 6

6th example shown in figure 15 indicates for the center of gravity of refrigerator to be able to suppress while side is mobile backward to case external leakage Cold and hot structure.

In Figure 15, the bottom surface sections WB of refrigerator, back part WR, left side face WSL, right side face WSR, top part WC with And vacuum heat-insulation component 82 is set on face portion WF.But it is the vegetable compartment door 74a of face portion WF, lower freezer compartment door 73a, cold The thickness of the vacuum heat-insulation component 82 of room door 70a, 70b is hidden compared to top part WC, the bottom surface sections WB, the back side being set to other than this Portion WR, left side face WSL, the vacuum heat-insulation component 82 on the face WSR of right side, thickness thinly forms.

Therefore, the weight of the vacuum heat-insulation component 82 of vegetable compartment door 74a, lower freezer compartment door 73a, refrigerating-chamber door 70a, 70b Amount can reduce the center of gravity ratio mobile to front side due to correspondingly reducing weight with thickness reduction, can reduce topple over can It can property.Here, if keeping the thickness for the vacuum heat-insulation component 82 being set on back part WR most thick, can make the center of gravity of refrigerator into Side is mobile backward for one step.

In addition, vegetable compartment door 74a, lower freezer compartment door 73a, refrigerating-chamber door 70a, 70b are since thickness is thinning and setting is true Empty heat insulating member 82, therefore cold air can be reduced from refrigerating chamber 70, lower freezer compartment 73, vegetables compared to example shown in Figure 14 Ratio of the room 74 to case outward leakage.

First example discussed above both respectively can individually have been implemented to the 6th example, can also will respective suitably group It closes and implements.

According to present invention as described above, become and use the pancake small relative to the lateral dimension height dimension of compressor The flat compressor of shape makes to make to be configured at while the height reduction of Machine Room the total of the vacuum heat-insulation component above heat insulating box Weigh less than the structure of the total weight of the vacuum heat-insulation component for the side being configured under heat insulating box.

According to this structure, while so that the size of Machine Room is become smaller and the storage volume of lowest part storeroom is made to become larger, Total amount due to making to be configured at the vacuum heat-insulation component above heat insulating box lightens and moves the center of gravity of refrigerator downwards, can A possibility that inhibiting refrigerator to topple over.

Moreover, containing various deformation example the present invention is not limited to above embodiment.For example, above embodiment in order to Illustrate the present invention with being readily appreciated that and explain in detail, the entire infrastructure having in explanation may not be defined in.In addition, can be by certain reality The a part for applying mode structure is converted to the structure of other embodiments, alternatively, it is also possible to add in the structure of certain embodiment The structure of upper other embodiments.In addition, the addition that a part about each embodiment structure can carry out other structures is deleted Except displacement.

Claims (4)

1. a kind of refrigerator, has: at least having the heat insulating box of multiple storerooms；By each above-mentioned storeroom be spaced apart Next door；The back side of the lowest part storeroom of the lowest part for being configured at above-mentioned heat insulating box in above-mentioned storeroom and it is above-mentioned every The Machine Room that hot tank body is adjacently formed；And it is configured at above-mentioned Machine Room and compresses the compression for flowing through the refrigerant of refrigerating cycle Machine, the refrigerator be characterized in that,

The height dimension flat compressor small relative to the lateral dimension of above-mentioned compressor is configured at above-mentioned Machine Room, is configured at The total weight of the vacuum heat-insulation component of the top of above-mentioned heat insulating box is above-mentioned less than the lower section for being configured at above-mentioned heat insulating box The total weight of vacuum heat-insulation component,

Also, it is configured at the above-mentioned vacuum heat-insulation of the shutter door of the multiple above-mentioned storerooms for the face portion for constituting above-mentioned heat insulating box Component is thinner than the thickness of above-mentioned vacuum heat-insulation component in addition to this, so be configured at above-mentioned heat insulating box back part it is upper The thickness for stating vacuum heat-insulation component is most thick.

2. refrigerator according to claim 1, which is characterized in that

Above-mentioned flat compressor be height dimension be 130mm or less, weight is 6kg or less, flat ratio i.e. height/lateral dimension is 70% compressor below.

3. refrigerator according to claim 1, which is characterized in that

Relative to the length Lm of the bottom surface from above-mentioned Machine Room to top surface, from the above-mentioned machinery for forming above-mentioned Machine Room upper area The length Lp of the bottom surface in the face of the upside of room to above-mentioned next door is formed as longer.

4. refrigerator according to claim 1, which is characterized in that

Above-mentioned flat compressor is that have compressing member, the electric element of the above-mentioned compressing member of driving, the above-mentioned compressing member of storage And the hermetic type compressor of the closed container of above-mentioned electric element,

Above-mentioned compressing member has the crankshaft and axis that refrigerant is compressed and moving back and forth piston radially in cylinder body The bearing of above-mentioned crankshaft is supported,

Above-mentioned electric element has the rotor for being fixed on above-mentioned crankshaft and applies the stator of rotary force to above-mentioned rotor,

Length from the center of the short transverse of above-mentioned piston to the center of the short transverse of above-mentioned rotor is set as S, above-mentioned turn When the radius of son is set as R, R/S≤0.8.