CN106052265A - Refrigerator - Google Patents

Abstract

The invention provides a new refrigerator which can improve the temperature detection precision of a temperature sensor for detecting the temperature of a compressor cover. A side of a compressor which is configured to compress refrigerating fluid in a machine room is provided with a cooling fan for cooling the compressor, and the temperature sensor for detecting the temperature of the compressor cover is isolated from the compressor and is configured on the side, opposite too the cooling fan, of the compressor cover. Therefore, the cooling air of the cooling fan does not directly act on the compression cover with the temperature sensor, so the impact from the cooling air of the cooling fan can be inhibited, thereby improving the detection precision of the temperature sensor.

Description

Refrigerator

Technical field

The present invention relates to the refrigerator cold preservation such as food, beverage or freezing stored.

Background technology

In the past, refrigerator possessed the compressor of compression cold-producing medium in Machine Room, if on the temperature inside the box of storeroom Rise to more than the setting value temp. control function controlling device then by refrigerator and make to be built in the electricity of compressor The rotating speed of dynamic motor increases and runs up, and makes the refrigerant flow increase in freeze cycle to improve cooling energy Power thus in cooler bin.It addition, in the case of the temperature inside the box is cooled to setting value, make turning of electro-motor Speed declines and low-speed running makes cooling capacity decline, with repeatedly making by this high speed and low-speed running The mode that the temperature inside the box remains in prescribed limit is controlled.

As above-mentioned, compressor the temperature inside the box higher than design temperature time for running up, but refrigerator installation In the surrounding air of high temperature, and in the case of around being blocked by wall etc., there is compressor temperature singularly Rise and become overload state, become the situation of the reason of fault.

As the compressor tackling such fault, it is known that possess by bimetallic in the power supply circuits of compressor The compressor of the overload relay that element is constituted.More than set point of temperature, relay work is become if this is compressor Make and cut off the compressor of the power supply to compressor.Specifically, the bimetallic element perception storage when high temperature The heat of the compressor shroud of compressor and invert, make contact separate and cut off the power supply to compressor, if compressor The temperature of cover is cooled to below the set point of temperature then bimetallic element original state of recovery and contact connects, to pressure Contracting machine supplies power supply and starts.Overload relay is installed in the way of being accommodated in protective cover, makes cooling compressor The cooling wind of cooling fan directly do not contact with overload relay thus improve the temperature of bimetallic element and examine Survey precision.

It addition, the compression facility disclosed in Japanese Unexamined Patent Publication 2014-177880 publication (patent documentation 1) Standby: the control circuit of the DC power control being driven compressor；It is provided with control circuit supply power supply The printed base plate of power circuit；Storage is installed on the storage case of the printed base plate of compressor shroud；And detection The temperature sensor of the heat of compressor shroud.Temperature sensor is connected to the DC source of storage case and controls electricity Between road, and this temperature sensor is installed in the wall of storage case and is contained.And, it is in temperature In the case of the temperature of degree sensor detection compressor shroud becomes more than set point of temperature, cut off the structure of DC source Make.

It addition, propose many in order to prevent the high temperature of compressor, and improve cooling effectiveness, arranging There is the part configuration cooling fan of the Machine Room of compressor, make to cool down compressor cooling fan revolve Turn, thus be compressed machine forcibly and the high-pressure side pipe arrangement of freeze cycle that is arranged in Machine Room is contour The heat radiation of temperature parts, prevents the composition that the excessive temperature of compressor rises.

Prior art literature:

Patent documentation:

Patent documentation 1: Japanese Unexamined Patent Publication 2014-177880 publication

Summary of the invention

As above-mentioned, in order to make to prevent the defencive function action of the high temperature of compressor, make in conventional refrigerator With overload relay and temperature sensor.And, utilize this overload relay and temperature sensor to examine The temperature of measured compressed hood, becomes set point of temperature and then stops compressor to prevent compressor from becoming the regulation of fault More than temperature.

Further, the cooling fan for cooling down compressor it is provided with in Machine Room, but in order to prevent this cooling The cooling wind of fan directly acts on overload relay and temperature sensor and improves temperature detecting precision, mistake Carry relay and temperature sensor is incorporated in protective cover.

But, even if being incorporated in protective cover, the cooling wind of cooling fan touches overload relay, temperature The compressor shroud of sensor proximity, then compressor shroud is by the cooling air cooling of this cooling fan, cannot so having Accurately measure the temperature of compressor shroud and the problem of accuracy of detection cannot be improved.

It addition, recently, such as also require that corresponding with the temperature of the cold-producing medium being sucked into compressor via suction tube The number of times of the reciprocating motion of the pistons of the variable adjustment compressor in ground, controls the temperature inside the box more meticulously.(compressor Being compressor in the form of piston, the bent axle that piston rotates by utilizing electro-motor moves back and forth, below by past The number of times of multiple motion is designated as rotating speed.) should in the case of, bimetallic element can not export for controlling compressor The temperature signal of rotating speed, so can use the size of output signal with variations in temperature accordingly in ratio ground defeated The temperature sensor gone out.

And, the temperature of the cold-producing medium being sucked into compressor also passes to compressor shroud via suction tube, if The temperature detecting compressor shroud accurately then can detect the temperature of cold-producing medium indirectly.But, as above-mentioned, Even if temperature sensor is accommodated in protective cover, compressor shroud is cooled the cooling air cooling of fan, so nothing Method accurately measures the temperature of compressor shroud, thus be also contemplated by being difficult to the rotating speed of variable adjustment compressor and more Control the problem of the temperature inside the box meticulously.

In any case, it is desirable to raising is compressed for rotation stopping control or variable control of compressor further The accuracy of detection of the temperature sensor of the rotating speed of machine, detection compressor shroud temperature.

It is an object of the invention to provide the temperature of the temperature sensor of the temperature that can improve detection compressor shroud The new refrigerator of degree accuracy of detection.

It is a feature of the present invention that the side of the compressor at the compression cold-producing medium being arranged at Machine Room configures cold But the cooling fan of compressor, and the temperature sensor of the temperature of detection compressor shroud is joined across compressor Put the compressor shroud in the side contrary with cooling fan.

According to the present invention, the cooling wind of cooling fan is not directly placed on the compressor being configured with temperature sensor Cover side, it is possible to suppression cools down the cooling wind effect compressor shroud of fan and can improve temperature sensor Accuracy of detection.

Accompanying drawing explanation

Fig. 1 is the front view of the refrigerator applying the present invention.

Fig. 2 is the longitudinal section of the longitudinal side of the refrigerator shown in cut away view 1.

Fig. 3 is the front view of the composition at the back side in the case representing the refrigerator shown in Fig. 1.

Fig. 4 is the axonometric chart of the composition of the Machine Room of the lower backside of the refrigerator representing embodiments of the invention.

Fig. 5 is cooling fan, compressor, the configuration of protective cover schematically showing embodiments of the invention The explanatory diagram of relation.

Fig. 6 is the front view of the protective cover side observation of the compressor from embodiments of the invention.

Fig. 7 is the sectional elevation of the horizontal profile of the compressor shroud representing embodiments of the invention.

In figure: 11 Machine Rooms, 43 planar portions, 44 capacitor units, 45 cooling fans, 46 Compressor shroud, 47 protective covers, 48R, 48L vent, 49 suction tubes, 50 adapters, 51 temperature sensors, 52 bracket components.

Detailed description of the invention

Hereinafter, use accompanying drawing, embodiments of the present invention are described in detail, the invention is not restricted to Under embodiment, in the technological concept of the present invention, various variation or application examples are also contained in its scope.

Before the specific embodiment of the explanation present invention, based on the Fig. 1 to Fig. 3 refrigerator to applying the present invention Composition illustrate.Fig. 1 is the front appearance figure of refrigerator, and Fig. 2 is the section view in the vertical section representing Fig. 1 Figure.It addition, the section of ice-making compartment not shown in Fig. 2.

In Fig. 1 and Fig. 2, refrigerator 1 has cold room 2, ice-making compartment 3 and top freezer from top to bottom Room 4, lower freezer compartment 5, vegetable compartment 6.Here, ice-making compartment 3 and top freezer compartment 4 are at cold room 2 With left-right situs is arranged between lower freezer compartment 5.It addition, the volumetric ratio lower freezer compartment of top freezer compartment 4 The volume of 5 is little, for keeping a small amount of food in cold storage.

And, the temperature of each storeroom, as an example, is that cold room 2 is about+3 DEG C, vegetable compartment The storeroom of the 6 refrigerated storage temperature sections being about+3 DEG C～+7 DEG C.It addition, ice-making compartment 3, top freezer compartment 4 and lower freezer compartment 5 be about the storeroom of cryogenic temperature section of-18 DEG C.

Cold room 2 possesses the refrigerating-chamber door of split (the so-called door-opening type) of left and right segmentation at front side 2a、2b.Ice-making compartment 3, top freezer compartment 4, lower freezer compartment 5, vegetable compartment 6 possess drawer type respectively Ice-making compartment door 3a, top freezer compartment door 4a, lower freezer compartment door 5a, vegetable compartment door 6a.

It is built-in with magnetic it addition, be provided with in the outer peripheral mode along each door in the face of the storeroom side of each door The sealing member (not shown) of ferrum, when the closedown of each door, with the flange of the refrigerator outer container formed by iron plate, In each separation iron plate described later is close to prevent extraneous air from invading storeroom and cold air leaks from storeroom. Here, the bottom at refrigerator main body 10 is formed with Machine Room 11 as shown in Figure 2, is wherein built-in with compressor 12.Cooler receiving room 13 is connected by drainage channel 14 with Machine Room 11, it is possible to discharge condensed water.

As in figure 2 it is shown, the case of refrigerator main body 10 is outer and passes through filling-foam between interior case and outer container in case Adiabator (polyurathamc) and the body of thermal insulating box 15 that formed separate.And the thermal insulation of refrigerator main body 10 Casing 15 is provided with multiple vacuum heat insulation materials 16.By upside thermal insulation partition wall 17 in refrigerator main body 10 Divide cold room 2, top freezer compartment 4 and ice-making compartment 3 (with reference to Fig. 1, not shown ice making in Fig. 2 Room 3), mark off lower freezer compartment 5 and vegetable compartment 6 by downside thermal insulation partition wall 18.

In the bottom of cold room 2, the upper surface at upside thermal insulation partition wall 17 is formed with decompression storeroom 82, return to atmospheric pressure when pulling out decompression door of storage room for the food that takes out in this decompression storeroom 82, If decompression door of storage room is returned to original state, vacuum pump works and subtracts decompression storeroom 82 Pressure.

It addition, be provided with cross septation portion on the top of lower freezer compartment 5.Cross septation portion by ice-making compartment 3 and Top freezer compartment 4 and lower freezer compartment 5 separate at above-below direction.It addition, arrange on the top in cross septation portion There is the vertical separating part that will separate between ice-making compartment 3 and top freezer compartment 4 at left and right directions.

Cross septation portion be arranged on before the adiabatic partition wall 18 in downside, before the sidewall of left and right and bottom cold Sealing member (not shown) contact in the face of the storeroom side of chilling chamber door 5a.It is arranged on ice-making compartment door 3a and upper The sealing member (not shown) in the face of the storeroom side of portion refrigerating chamber door 4a and cross septation portion, vertical separating part, Contact before the left and right sidewall of the adiabatic partition wall 51 in upside and refrigerator main body 1, thus suppress each storage respectively The movement of the cold air between room, Tibetan and Ge Men.

It is arranged on respectively as in figure 2 it is shown, top freezer compartment 4, lower freezer compartment 5 and vegetable compartment 6 are provided with From door 4a, 5a, the 6a in front of storeroom.It addition, at top freezer compartment 4 storage configuration top freezer Tank 41, the container 61 that keeps in cold storage on lower freezer compartment 5 storage configuration upper strata, lower floor keep in cold storage Container 62.Further, hold at vegetable compartment 6 storage configuration upper strata preservation of vegetables container 71, lower floor's preservation of vegetables Device 72.

And, ice-making compartment door 3a, top freezer compartment door 4a, lower freezer compartment door 5a and vegetable compartment door 6a By not shown handle portion will be manually placed into respectively and to nearby layback, pull out ice making tank 3b (not Diagram), top freezer tank 41, lower floor keep in cold storage container 62, lower floor's preservation of vegetables container 72.

Specifically, for lower floor keeps container 62 in cold storage, lower floor keeps in cold storage the side of container 62 The flange part on top is suspended in and is arranged on the supporting arm 5d of case in refrigerating chamber door, pull-out refrigerating chamber door 5a then with Time only have lower floor's container 62 that keeps in cold storage to be drawn out.The upper strata container 61 that keeps in cold storage is placed in and is formed at freezing The jog (not shown) of the side walls of room 5 and can slide in the longitudinal direction.

Lower floor's preservation of vegetables container 72 its flange part the most in the same manner is suspended in the interior case being installed on vegetable compartment door 6a Supporting arm 6d, upper strata preservation of vegetables container 71 is placed in the jog of vegetable compartment side walls.It addition, This vegetable compartment 6 is provided with the electrothermal heater 6C being fixed on body of thermal insulating box 15, by this electrothermal heater 6C makes the temperature of vegetable compartment 6 become the temperature of the storage being suitable for vegetable, in order to avoid the temperature mistake of vegetable compartment 6 Cold.It addition, this electrothermal heater 6C is arranged as required to, but in order to preferably in the present embodiment Store vegetable and electrothermal heater 6C is set.

Next the cooling means of refrigerator is illustrated.It is formed with cooler receiving room at refrigerator main body 1 13, wherein possess cooler 19 as cooling body.(as an example, finned tube changes cooler 19 Hot device) it is arranged in the cooler receiving room 13 possessed at the back of lower freezer compartment 5.It addition, cold But interior and cooler 19 the top of device receiving room 13 is provided with pressure fan 20 (as one as wind pushing mechanism Individual example, screw-type ventilator).

In cooler 19, carry out heat exchange and cooled air (following, cooler 19 will carry out heat The air of the low temperature of exchange is referred to as " cold air ") pass through pressure fan 20 via cold room ajutage 21, freezing Room ajutage 22 and not shown ice-making compartment ajutage and be respectively fed to cold room 2, ice-making compartment 3, Top freezer compartment 4, lower freezer compartment 5, each storeroom of vegetable compartment 6.

First of the air output by controlling the cold room 2 to refrigerated storage temperature section of blowing each storeroom send Wind controlling organization (hereinafter referred to as cold room air door 23) and the control refrigerating chamber 4,5 to cryogenic temperature section The second air output controlling organization (hereinafter referred to as refrigerating chamber air door 24) of air output control.In passing Say, to cold room 2, ice-making compartment 3, top freezer compartment 4, lower freezer compartment 5 and vegetable compartment 6 Carry out each ajutage of blowing as in Fig. 3 to be arranged on the back side of each storeroom of refrigerator main body 1 shown in dotted line Side.Specifically, it is open state at cold room air door 23, when refrigerating chamber air door 24 is closed state, cold air It is sent to cold room 2 from the outlet 25 being set to multistage via cold room ajutage 21.

It addition, cool the cold air of the cold room 2 cold room return port from the bottom being arranged at cold room 2 26 via cold room-vegetable compartment communicating pipe 27, inboard from the lower right being arranged at the adiabatic partition wall 18 in downside Vegetable compartment outlet 28 be sent to vegetable compartment 6.From vegetable compartment 6 return cold air from be arranged at downside The vegetable compartment recurrent canal entrance 29 in the front, bottom of adiabatic partition wall 18 via vegetable compartment recurrent canal 30, from The outlet of vegetable compartment recurrent canal returns to the bottom of cooler receiving room 13.It addition, the composition as other also may be used So that cold room-vegetable compartment communicating pipe 27 does not connects with vegetable compartment 6, in Fig. 3, from cooler receiving room The above observation of 12, for returning the composition of lower right side.As an example of this situation, at cold room Front projection's position configuration vegetable compartment ajutage of-vegetable compartment communicating pipe 27, will carry out heat at cooler 19 The cold air of exchange is fed directly to vegetable compartment 6 from vegetable compartment outlet 28.

As shown in Figure 2 and Figure 3, the front at cooler receiving room 13 is provided with separation each storeroom and cold But the partition member 31 between device receiving room 12.At partition member 31, it is being formed up and down as shown in Figure 3 A pair outlet 32a, 32b, 33a, 33b, when refrigerating chamber air door 24 is open state, at cooler 19 Carry out ice-making compartment ajutage, upper strata refrigerating chamber that the cold air of heat exchange is illustrated via omission by pressure fan 20 Ajutage 34 is sent to ice-making compartment 3, top freezer compartment 4 respectively from outlet 32a, 32b.It addition, warp It is sent to lower freezer compartment 5 from outlet 33a, 33b by lower floor's refrigerating chamber ajutage 35.Additionally, it is possible to To set up outlet in lower freezer compartment 5 as required.

It is equipped with CPU, ROM or RAM it addition, be provided with at the ceiling wall upper face side of refrigerator main body 10 Deng memorizer, interface circuit equal controller, with external air temperature sensor (not shown), cooler Temperature sensor (not shown), refrigerator temperature sensor (not shown), vegetable compartment temperature sensor are (not Diagram), freezer temperature sensor (not shown), compressor shroud temperature sensor (not shown, Fig. 4～ Fig. 6 illustrates.), the open and-shut mode of each door of detection door 2a, 2b, 3a, 4a, 5a, 6a respectively Door sensor (not shown), the not shown temperature setting device etc. that is arranged at cold room 2 inwall connect, By being pre-installed in the program of ROM, it is compressed ON, OFF and the rotating speed control etc. of machine 12 Control, drive independently the respective actuator of cold room air door 23 and refrigerating chamber air door 24 control, The ON/OFF control of pressure fan 20, rotary speed control, the ON of the siren of report door open mode The control of/OFF etc..

Returning Fig. 1, refrigerating-chamber door 2a is provided with input control portion 40, this input control portion 40 is with above-mentioned Control device connect.Therefore, refrigerator 1 can be set according to the input from input control portion 40 The temperature of each storeroom.Such as control the rotating speed of compressor 12, the rotating speed of pressure fan 20, cold room air door 23 and the opening and closing of refrigerating chamber air door 24, opening and closing amount etc. thus control the temperature of each storeroom.Temperature sets Button 41 carries out the control of the cold air to decompression storeroom supply, and temperature setting button 42 is carried out being arranged at The control of the cold air that the bottom tank (not shown) of lower freezer compartment 4 supplies.

The composition of refrigerator is the composition having been well known as described above, so omitting further instruction.

As above-mentioned, in order to make to prevent the defencive function action of the high temperature of compressor, use in conventional refrigerator Temperature sensor detects the temperature of compressor shroud.And, temperature sensor is in order to prevent from cooling down the wind of fan Directly act on and improve temperature detecting precision and be incorporated in protective cover.But, even if being incorporated in protective cover, If the wind of cooling fan touches the compressor shroud near temperature sensor, then compressor shroud is by this cooling fan Cooling air cooling, it is impossible to accurately measure the temperature of compressor shroud, there is the class that cannot improve accuracy of detection Topic.

Further, also require that and the turning of temperature the most variable adjustment compressor of the cold-producing medium that is sucked into compressor Speed, thus control the temperature inside the box more meticulously.But, even if temperature sensor is accommodated in protective cover, pressure Contracting hood is cooled the cooling air cooling of fan and cannot accurately measure the temperature of compressor shroud, exists and is difficult to The rotating speed of variable adjustment compressor to control more meticulously the problem of the temperature inside the box.

Therefore, in the present embodiment, it is proposed that a side of the compressor of the compression cold-producing medium being arranged at Machine Room Side configuration cooling compressor cooling fan, and by detection compressor shroud temperature temperature sensor across Compressor is arranged in and cools down the composition of the compressor shroud of fan opposite side.Thus, the cooling of fan is cooled down Wind is not directly placed on the compressor shroud side being configured with temperature sensor, it is possible to suppression cooling fan is cold But wind effect compressor shroud and the accuracy of detection of temperature sensor can be improved.

Hereinafter, based on Fig. 4 to Fig. 6, the present embodiment is described in detail, in first Fig. 4, to setting The composition of the Machine Room 11 putting the lower back side at body of thermal insulating box 15 illustrates.

As shown in Figure 4, in Machine Room 11, it is configured with capacitor unit 44 by side (here for right side). Fan 45 is cooled down, in this cooling being configured with right side, outside RS opposite side of capacitor unit 44 The side contrary with capacitor unit 44 side of fan 45 is configured with the compressor shroud 46 of storage compressor 12. Further, the side contrary with cooling fan 45 in compressor shroud 46 is configured with the guarantor of storage temperature sensor Guard shield 47.The left outer end face LS that the side contrary with compressor shroud 46 is Machine Room 11 of protective cover 47. It addition, in addition, possess in Machine Room 11 capillary tube, the switching freeze cycle parts such as valve, exsiccator, Pipe arrangement.

Constitute Machine Room 11 right side, outside RS and left outer end face LS be formed vent 48R, 48L, it is possible to air high for the temperature in Machine Room 11 is swapped with outside cold air.That is, pass through The rotation of cooling fan 45, the extraneous air cooling capacitor unit 44 flowed into from vent 48R, and then Discharge from vent 48L after cooling cooling fan 45, compressor shroud 46.

And, as shown in Figure 5 in the present embodiment, from observation Machine Room, upside 11, linking cooling fan The regulation region Q's of the both sides of the extended line L of the axial-rotation center O of 45 and the center P of compressor 12 The compressor shroud 46 of scope is configured with protective cover 47.Regulation region Q is with by the center P of compressor 12 And with the region that the cross line R of extended line L-orthogonal is border and cooling fan 45 opposite side.

Therefore, the cooling wind brought from cooling fan 45 is difficult to flow to and cooling with cross line R for border The region of the side that fan 45 is contrary.Certainly, there are some cooling wind to be involved in and flow to and cool down fan 45 The Q side, regulation region of contrary side, but its cooling effect is fewer than the side opposed with cooling fan 45, The main cooling surface utilizing cooling fan 45 of compressor shroud 46 is the side opposed with cooling fan 45 Face.

Therefore, cooling fan 45 cooling wind be not directly placed on compressor shroud 46 with cross line R be The regulation region Q of the side contrary with cooling fan 45 on border, it is possible to suppression cooling fan 45 Cooling wind effect compressor shroud 46 regulation region Q, so, protective cover 47 is configured at this regulation region In the range of Q, it is possible to improve the accuracy of detection of the temperature sensor being built in protective cover 47.Separately Outward, the upper surface of the compressor shroud 46 that protective cover 47 is fixed on extended line L, institute in the present embodiment The region minimum to be configured at the impact of the cooling wind of cooling fan 45.

Further, in the present embodiment, side at protective cover 47 is configured with the suction tube 49 of cold-producing medium.Therefore, Temperature sensor in protective cover 47 also is able to indirectly detect the temperature of the suction tube 49 of cold-producing medium.That is, Protective cover 47 is configured at the few region of impact of the cooling wind of cooling fan 45, so utilizing temperature sensor In the temperature of the compressor shroud 46 of detection, the impact of the cooling wind of cooling fan 45 reduces, and reflects The temperature of the cold-producing medium of flowing in suction tube 49.Therefore, between the temperature sensor in protective cover 47 also is able to The temperature of earthing detection cold-producing medium.It addition, make temperature section that the defencive function of stopping compressor 12 works and Different, so mutual control will not interfere with for the temperature section of the rotating speed of variable adjustment compressor.

Fig. 6 shows the detailed content of protective cover 47.Protective cover 47 is positioned on the extended line L of Fig. 5 The outer surface of compressor shroud 46.Protective cover 47 is formed by the synthetic resin of box like, is fixed on fixing bolt Compressor shroud 46, or be embedded in and be arranged on the mounting bracket of compressor shroud 46 and fixed.

In protective cover 47, it is provided with and the control device extension from the end face being arranged on refrigerator main body 10 The adapter 50 that the electric lines of force of 3 phases connects.It is built in the electro-motor of compressor shroud 46 by from adapter The electric power of 50 supplies rotates and drives compressor.Pass it addition, be provided with temperature near adapter 50 Sensor 51, this temperature sensor 51 is arranged in the position adjacent with suction tube 49.In other words, sandwiched Between adapter 50 and suction tube 49.

Therefore, temperature sensor 51 can indirectly detect via compressor shroud 46 and flow in suction tube 49 The temperature of dynamic cold-producing medium.Temperature sensor 51 can use various sensor, it is possible to use critesistor, Temperature-measuring resistance element etc..Alternatively, it is also possible to make temperature sensor 51 not contact with compressor shroud 46 and close. In the case of Gai, the accuracy of detection of temperature somewhat declines, but empty in the configuration that cannot ensure temperature sensor 51 Between situation inferior favorably.

Here, as it is shown in fig. 7, temperature sensor 51 at least some of be formed at compressor shroud 46 The planar portions 43 on surface configure contiguously.A part at the outer peripheral face of compressor shroud 46 is formed with plane Portion 43, protective cover 47 is fixed on this planar portions 43.Temperature sensor 51 directly contact with planar portions 43 or Person is via the good flat metallic plate thermally coupled of heat conductivity.If the periphery in compressor shroud 46 is installed Temperature sensor 51 then contact area is limited and temperature detection sensitivity declines, but the middle temperature of the present embodiment Degree sensor 51 contacts with planar portions 43, it is possible to increase contact area and improve temperature detection sensitivity.

It addition, temperature sensor 51 keeps in the way of being clamped by bracket component 52, bracket component 52 One end is fixed in the inside of protective cover 47.Therefore, it is possible to make temperature sensor 51 and the planar portions 43 can By ground contact.Further, if this bracket component 52 is for having resilient spring support, then temperature can be made to pass Sensor 51 elastic pressing planar portions 43 and during length in make temperature sensor 51 stably with planar portions 43 Contact.It is of course possible to suppression causes temperature sensor 51 due to the vibration produced in the operating of compressor The phenomenon separated intermittently from planar portions 43, it is possible to carry out temperature detection accurately.

So, protective cover 47 is arranged in the few region of impact of the cooling wind of cooling fan 45, so by temperature The temperature of the compressor shroud 46 that degree sensor 51 detects decreases the shadow of the cooling wind of cooling fan 45 Ring, reflect the temperature of the cold-producing medium flowed at suction tube 49.Therefore, the temperature sensing in protective cover 47 Device also is able to indirectly detect the temperature of cold-producing medium.It addition, decrease the shadow of the cooling wind of cooling fan 45 Ring, so further increasing its temperature detecting precision.

As previously discussed, the present invention is cold in the side configuration of the compressor of the compression cold-producing medium being arranged at Machine Room But the cooling fan of compressor, is arranged in the temperature sensor of the temperature of detection compressor shroud across compressor The compressor shroud of the side contrary with cooling fan.Thus, the cooling wind of cooling fan is not directly placed on and joins It is equipped with the compressor shroud side of temperature sensor, it is possible to the cooling wind effect compressor shroud of suppression cooling fan And the accuracy of detection of temperature sensor can be improved.

It addition, the invention is not restricted to the embodiments described, comprise various variation.Such as, above-mentioned enforcement Example is to easily illustrate that the present invention is illustrated in detail, but is not necessarily limited to possess illustrated Whole compositions.Furthermore it is possible to the composition of a part for the composition of certain embodiment with other embodiment is put Change, alternatively, it is also possible in the composition constituting the embodiment adding other of certain embodiment.Alternatively, it is also possible to A part to the composition of each embodiment adds, eliminates, replaces other composition.

Claims (6)

1. a refrigerator, it possesses:

It is configured at Machine Room and is compressed in freeze cycle the compressor of the cold-producing medium flowed；

It is configured at above-mentioned Machine Room and cools down the cooling fan of above-mentioned compressor；And

The temperature sensor that the temperature of the compressor shroud of storage above-mentioned compressor is detected,

Above-mentioned refrigerator is characterised by,

Side configuration in the above-mentioned compressor being arranged at above-mentioned Machine Room cools down the above-mentioned cold of above-mentioned compressor But fan, and the said temperature sensor of the temperature of detection above-mentioned compressor cover is joined across above-mentioned compressor Put the above-mentioned compressor cover in the side contrary with above-mentioned cooling fan.

Refrigerator the most according to claim 1, it is characterised in that

The position of configuration said temperature sensor is, when observing above-mentioned Machine Room from upside, to link above-mentioned cold But in the range of the both sides of the extended line that the axial-rotation center of fan and the center of above-mentioned compressor obtain, and And with cold with above-mentioned as border by center and the cross line orthogonal with above-mentioned extended line of above-mentioned compressor The regulation region of the side that but fan is contrary.

Refrigerator the most according to claim 2, it is characterised in that

Said temperature sensor is incorporated in protective cover, and the position configuring above-mentioned protective cover is on above-mentioned extended line The outer surface of above-mentioned compressor cover.

Refrigerator the most as claimed in any of claims 1 to 3, it is characterised in that

Above-mentioned compressor cover is provided with the suction tube to above-mentioned compressor the supply system cryogen, and above-mentioned suction tube sets Put in the position adjacent with said temperature sensor.

Refrigerator the most according to claim 1, it is characterised in that

Said temperature sensor is with the side contacted with the planar portions being formed at above-mentioned compressor cover at least partially Formula configures.

Refrigerator the most as claimed in any of claims 1 to 5, it is characterised in that

If being reached by the temperature controlling the above-mentioned compressor cover that device is judged as that said temperature sensor detects The temperature predetermined, the most above-mentioned control device stops the operating of above-mentioned compressor or changes above-mentioned compression The rotating speed of machine.