CN101965494B

CN101965494B - Refrigerator

Info

Publication number: CN101965494B
Application number: CN200980106929XA
Authority: CN
Inventors: 杉本修平; 中村光男
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2008-02-29
Filing date: 2009-02-24
Publication date: 2012-11-28
Anticipated expiration: 2029-02-24
Also published as: WO2009107360A1; TW200946850A; JPWO2009107360A1; CN101965494A; TWI456155B

Abstract

A refrigerator having a heat insulation casing consisting of an outer box, an inner box, and a thermal insulation material provided therebetween. The refrigerator is further provided with piping which includes an iron pipe and a plurality of joints of iron pipe at least partially and constituting a hermetically-closed annular cooling cycle, a first machine room provided on the outside of the outer box contiguously thereto, and a second machine room provided on the outside of the base portion of the outer box contiguously thereto at a position different from the first machine room. The piping passes through the first machine room and the second machine room and at least one of the plurality of joints is arranged, respectively, in the first machine room and the second machine room.

Description

Freezer

Technical field

The present invention relates to freezer.

Background technology

Freezer has a plurality of equipment such as compressor, evaporimeter, drier, valve and heat exchanger that constitute cool cycles.In the prior art, the major part of above-mentioned a plurality of equipment all is arranged in the Machine Room of freezer bottom.Therefore, the connecting pipings that in the Machine Room, connects these equipment is complicated (like patent documentation 1) comparatively.

In the Machine Room, owing to there is the junction surface of the above-mentioned pipe arrangement of a plurality of connections, the general copper pipe of welding easily that uses is used as pipe arrangement.

But the pipe arrangement at least a portion cool cycles that reduces cost uses the iron pipe more cheap than copper pipe sometimes.At this moment, replace being used for the spelter solder welding of the welding between copper pipe and the copper pipe, be necessary to use the silver solder welding of the welding that is used for copper pipe and iron pipe.Yet when welding silver material needs the coating flux, removes operational sequence such as this flux in order to make silver solder be easy to fusing, compares the operational sequence increase with the spelter solder welding.When therefore silver solder welds, must guarantee the operating space and shorten weld interval in order to carry out welding operation.

But for the structure that has the junction surface of a plurality of pipe arrangements in the existing this Machine Room, the operating space of welding that is used for the junction surface is just narrow.Therefore, be difficult to guarantee the operating space of various operational sequences such as removing of welding, flux, also can waste the operating time, thereby operability be poor at pipe arrangement.

Patent documentation 1: japanese kokai publication hei 7-146054 communique

Freezer among the present invention; Has heat insulating box; This heat insulating box has outer container, interior case; And, comprise that also ring-type constitutes the pipe arrangement of cool cycles hermetically, the junction surface that its at least a portion has a plurality of iron pipes and engages with said iron pipe by the heat-barrier material that is arranged between said outer container and the said interior case; First Machine Room, it is arranged to the outside in abutting connection with said outer container; With second Machine Room; It is arranged in the outside adjacency of bottom surface sections of the said outer container of the position different with said first Machine Room; Said pipe arrangement is via said first Machine Room and said second Machine Room, and at least one in a plurality of said junction surfaces is arranged in said first Machine Room and said second Machine Room.

Two places of Machine Room in heat insulating box also promptly are divided into first Machine Room and second Machine Room in such freezer, and the machine quantity in each Machine Room reduces, and it is simple that matched tube structure also becomes.The pad number that also is the pipe arrangement in each Machine Room has reduced.Therefore at least one junction surface with the iron pipe of silver solder welding, the space enlargement of the weld part periphery of pipe arrangement, thereby the operating space that can guarantee welding operation, and can shorten the operating time.

Description of drawings

Fig. 1 is the front view of the freezer in the embodiment of the present invention 1.

Fig. 2 is the stereogram of same freezer from back displays.

Fig. 3 A shows the stereogram of first Machine Room of same freezer.

Fig. 3 B shows the skeleton diagram of first Machine Room of same freezer.

Fig. 4 shows the stereogram of second Machine Room of same freezer.

Fig. 5 shows the stereogram of the matched tube structure of same freezer.

Second iron pipe that Fig. 6 shows same freezer is crimped on the stereogram in the heat-barrier material.

The figure of suitable welding space when Fig. 7 is iron pipe and the copper pipe welding of the same freezer of explanation.

Fig. 8 A is the front view of direction of engagement at the junction surface of the same freezer of explanation.

Fig. 8 B is the profile of direction of engagement at the junction surface of the same freezer of explanation.

Fig. 9 A is the profile of the freezer in the embodiment of the present invention 2.

Fig. 9 B is the back view of same freezer.

Figure 10 is the stereogram of the rear side of the freezer in the embodiment of the present invention 3.

Figure 11 A shows the stereogram of the matched tube structure of the freezer in the embodiment of the present invention 4.

Figure 11 B shows the stereogram of the another kind of matched tube structure of same freezer.

Figure 11 C shows the stereogram of the another kind of matched tube structure of same freezer.

Figure 11 D shows the stereogram of the another kind of matched tube structure of same freezer.

Figure 11 E shows the stereogram of the another kind of matched tube structure of same freezer.

Figure 12 shows the stereogram of the matched tube structure of the freezer in the embodiment of the present invention 5.

Figure 13 is the profile of the freezer in the embodiment of the present invention 6.

Symbol description:

100,120,130,160 freezers

101 heat insulating boxes

102 first refrigerating chambers

103 second refrigerating chambers

104 refrigerating chambers

105 ice-making compartments

Switching chambers 106

107 insulated doors

108 thermal insulation boards

200,220,230 first Machine Rooms

201 compressors

202 driers

203 first iron pipes

204 second iron pipes

205 first copper pipes

206 second copper pipes

211 fans

The 211a fan guard

233,244 second junction surfaces

235,246 first junction surfaces

300 second Machine Rooms

301 evaporating pans

303 the 3rd copper pipes

304 the 4th copper pipes

305 the 5th copper pipes

306 the 6th copper pipes

400 heat-barrier materials

The specific embodiment

Freezer in the 1st invention; Has heat insulating box; This heat insulating box has outer container, interior case; And by the heat-barrier material that is arranged between said outer container and the said interior case, comprising: ring-type constitutes the pipe arrangement of cool cycles hermetically, the junction surface that its at least a portion has a plurality of iron pipes and engages with said iron pipe; First Machine Room, it is arranged to the outside in abutting connection with said outer container; With second Machine Room; It is arranged in the outside adjacency of bottom surface sections of the said outer container of the position different with said first Machine Room; Said pipe arrangement is via said first Machine Room and said second Machine Room, and at least one in a plurality of said junction surfaces is arranged in said first Machine Room and said second Machine Room.The Machine Room is positioned at two places of heat insulating box in such freezer, also promptly is divided into first Machine Room and second Machine Room, and the machine quantity in each Machine Room reduces, and it is simple that matched tube structure also becomes.The pad number that also is the pipe arrangement in each Machine Room has reduced.Therefore at least one junction surface with the iron pipe of silver solder welding, the space enlargement of pipe arrangement weld part periphery, thereby the operating space that can guarantee welding operation, and can shorten the operating time.

The 2nd invention is; The pipe arrangement of the 1st invention comprises that at least a portion is arranged on the pipe of first in said first Machine Room, at least a portion is arranged on the pipe of second in said second Machine Room and connects the said iron pipe that said first pipe and said second is managed; First junction surface of one end of said first pipe of solder joints and said iron pipe is arranged in said first Machine Room, and second junction surface of the other end of said second pipe of solder joints and said iron pipe is arranged in said second Machine Room.The Machine Room is positioned at two places of heat insulating box in such freezer, also promptly is divided into first Machine Room and second Machine Room, and the machine quantity in each Machine Room reduces, and it is simple that matched tube structure also becomes.The pad number that also is the pipe arrangement in each Machine Room has reduced.Therefore for first junction surface of welding an end of first pipe and iron pipe through silver solder; And second junction surface of passing through the other end of silver solder welding second pipe and iron pipe; The space enlargement of the weld part periphery of pipe arrangement; Thereby the operating space that can guarantee welding operation, and the operating time can be shortened.

The 3rd the invention be, the 2nd the invention first the pipe be first copper pipe and second copper pipe that is made of copper, second the pipe be the 3rd copper pipe and the 4th copper pipe that is made of copper.The Machine Room is positioned at two places of heat insulating box in such freezer, also promptly is divided into first Machine Room and second Machine Room, and the machine quantity in each Machine Room reduces, and it is simple that matched tube structure also becomes.The pad number that also is the pipe arrangement in each Machine Room has reduced.Therefore for first junction surface of an end that welds first copper pipe and iron pipe through silver solder; And second junction surface of welding the other end of second copper pipe and iron pipe through silver solder; The space enlargement of the weld part periphery of pipe arrangement; Thereby the operating space that can guarantee welding operation, and the operating time can be shortened.

In addition; Because it is copper pipe that at least a portion is arranged on the pipe that pipe and at least a portion in first Machine Room be arranged in second Machine Room; With pipe at least a portion is arranged on first Machine Room and pipe at least a portion is arranged on second Machine Room is that the situation of iron pipe is compared, and iron pipe hardness is high, easily transmitting vibrations; Copper pipe is lower than iron pipe hardness, thereby can absorb, lower the vibration that the running machine produces.Therefore can reduce the noise and the vibration of freezer.

The 4th invention is that the freezer of the 1st invention also comprises: be located at the compressor first Machine Room in, and be located at and be used to store in second Machine Room and the evaporating pan of the defrost water of evaporative cooling circulation generation.The Machine Room is split up at two places up and down of the heat insulating box of compressor side and evaporating pan side in such freezer, thereby the minimizing of the machine quantity in each Machine Room, and it is simple that matched tube structure also becomes.The pad number that also is the pipe arrangement in each Machine Room has reduced.Therefore for first junction surface of an end that welds first copper pipe and iron pipe through silver solder; And second junction surface of welding the other end of second copper pipe and iron pipe through silver solder; The space enlargement of the weld part periphery of pipe arrangement; Thereby the operating space that can guarantee welding operation, and the operating time can be shortened.

In addition, the capacity of below storeroom can be increased,, thereby the physical holding of the stock capacity of freezer can be increased significantly simultaneously because the dead band that the top hand can not be got at is used as the Machine Room.

The 5th invention is that first Machine Room is arranged on the back side of heat insulating box in the freezer of the 1st invention.The Machine Room is positioned at two places of heat insulating box in such freezer, also promptly is divided into first Machine Room and second Machine Room, and the machine quantity in each Machine Room reduces, and it is simple that matched tube structure also becomes.The pad number that also is the pipe arrangement in each Machine Room has reduced.Therefore for first junction surface of welding an end of first pipe and iron pipe through silver solder; And second junction surface of passing through the other end of silver solder welding second pipe and iron pipe; The space enlargement of pipe arrangement weld part periphery; Thereby the operating space that can guarantee welding operation, and the operating time can be shortened.

In addition, through first Machine Room being arranged on the back side of freezer, for example under the situation of the back side portion that will be arranged on heat insulating box, the matched tube structure of cool cycles being oversimplified, thereby can be shortened weld interval and operating time like the iron pipe of electric wire shape.

The 6th invention is in the freezer of the 2nd invention, the space of the suitable welding of the flame heat when first junction surface and second junction surface are configured in the wall that can not be soldered first Machine Room and second Machine Room respectively.In such freezer the junction surface is arranged in the space that is fit to welding the operating space that can guarantee welding operation.Even and the welding position is not arranged in the space that is fit to welding; If also can being introduced in the space that is fit to welding when welding, the welding position carries out; Can be arranged on the space that is fit to welding; Can guarantee the operating space of welding operation, make the operator can easily carry out welding operation simultaneously, thereby shorten the time of operation.

The 7th invention is in the freezer of the 3rd invention, and first copper pipe is the tube connector that connects iron pipe and be used for removing the drier of cool cycles cold-producing medium moisture.Because drier wall thickness and volume are bigger, need more heat when carrying out the silver solder welding with iron pipe in such freezer, thereby required time of welding operation is long.Therefore between drier and iron pipe, copper connecting tube is set, thereby can the welding of the silver solder between drier and the iron pipe be changed to the spelter solder welding of drier and plumbers shed, thereby can shorten weld interval.

In addition, iron pipe hardness is high, easy transmitting vibrations, and copper pipe hardness is lower than iron pipe, thereby can absorb, lower the vibration of the machine generation of running.Therefore, use copper connecting tube can hang down noise and the vibration that subtracts freezer.

The 8th invention is in the freezer of the 2nd invention, and it is horizontal direction that first junction surface makes the direction of first pipe and iron pipe butt joint; It is horizontal direction that second junction surface makes the direction of second pipe and iron pipe butt joint.For such freezer, when silver solder welded, silver solder fusing back was because deadweight flows down from top, junction surface, and flowed down around along the junction surface, thereby being easy in full week be coated with and being covered with silver solder of junction surface.Therefore, because silver coated scolder easily, so can shorten the operating time.

The 9th invention is in the freezer of the 1st invention, and at least a portion of iron pipe is provided with along the outer container inner face, and heat-barrier material is crimped on outer container with the part of iron pipe, and heat-barrier material is the plate-shaped member with thermal insulation.Such freezer can utilize guarantees that the needed heat-barrier material of thermal insulation comes the crimping iron pipe, makes iron pipe under fixing state, weld.Thereby make welding operation become simply, also can shorten the operating time.

In addition, iron pipe is crimped on outer container, and iron pipe is with outer container thereby closely contact, thereby can improve from the heat dispersion of iron pipe to the outer container side, and can further prevent the distortion of outer container.

Next with reference to description of drawings embodiment of the present invention.Yet the present invention is not limited to these embodiments.

(embodiment 1)

Fig. 1 is the front view of the freezer in the embodiment of the present invention 1.As shown in Figure 1, freezer 100 has the opposite opened door on top, makes the inside and outside heat insulating box 101 that under state of thermal isolation, is separated into freezer 100 have the storeroom of a plurality of divisions.

A plurality of storerooms of being divided in freezer 100 can be divided into first refrigerating chamber 102, ice-making compartment 105, can change switching chamber 106, second refrigerating chamber 103 and the refrigerating chamber 104 etc. of refrigeration storehouse temperature according to function (chilling temperature).

In the front openings portion of first refrigerating chamber 102 that is arranged in freezer 100 topmosts, be provided with foam filled like the swinging insulated door 107 of the heat-barrier material of polyurethane and so on.And first refrigerating chamber 102 constitutes the accommodation space of shelf type.

In addition, be configured in first refrigerating chamber, 102 belows ice-making compartment 105, switch chamber 106, second refrigerating chamber 103 and refrigerating chamber 104 and constitute the pull-out type accommodation space.And each pull-out type accommodation space is provided with the thermal insulation board 108 as header board, can not leak cold air and seal storage chamber thus.

Heat insulating box 101 by metal outer container and resinous between the case filling such as hard polyurethane foam etc. heat-insulating material and form, and be the casing of the cuboid of at least one opening.Heat insulating box 101 has partition flows to the heat in the heat insulating box 101 from extraneous atmosphere (atmosphere) function.

Fig. 2 is the stereogram that shows the back side of the freezer in the embodiment of the present invention 1.In the embodiment 1 of the present invention, first Machine Room 200 is arranged, below its situation when being arranged at topmost rear area of heat insulating box 101 of explanation in abutting connection with the arranged outside of the outer container of heat insulating box 101.

As shown in Figure 2, direction is formed with the recess (not shown) of downstairs shape towards the back side of freezer 100 on the top of freezer 100, forms first Machine Room 200 in this recess.It also is the state that first Machine Room 200 forms the topmost rear area in the outside that embeds heat insulating box 101.

In the bottom of this external freezer 100, be formed with the ditch shape recess of direction opening overleaf, with the recess of first Machine Room, 200 diverse locations in be formed with second Machine Room 300.It also is the state that second Machine Room 300 forms the outside foot rear area that embeds heat insulating box 101.

Also promptly first Machine Room 200 in abutting connection with the arranged outside of outer container, the outside of the bottom surface sections of the outer container that second Machine Room, 300 adjacency are different with 200 positions, first Machine Room and being provided with.

At this, in the rear area of the storeroom of the foot of existing heat insulating box 101, generally be provided with a Machine Room.Therefore the Machine Room is in the state that is divided into

first Machine Room

200 and 300 configurations of second Machine Room, compares with existing freezer, and the device quantity in each Machine Room reduces, matched tube structure thereby simple.

In addition, compare with existing freezer, second refrigerating chamber, the 103 grades capacity of the storeroom of below obviously increase.And because the dead space volume that the hand of the top of first refrigerating chamber 102 is difficult to reach is used as first Machine Room 200, thereby can increase freezer 100 actual storage capacities.

In addition, usually in order to prevent that noise from covering first Machine Room 200 and second Machine Room 300 with the cover plate (not shown).

In addition, Machine Room described herein is the space that is used to place, take at least one parts relevant with cool cycles.

Fig. 3 A shows the stereogram of first Machine Room of the freezer in the embodiment of the present invention 1, and Fig. 3 B shows the skeleton diagram of first Machine Room of this freezer.

First Machine Room 200 as shown in Figure 3 is the fan 211 of taking in compressor 201, cooling compressor 201, drier 202 etc. and other on high-tension side spaces mainly as cool cycles.

Compressor 201 be form cool cycles component parts one of, it is used for compressed refrigerant.And compressor placed and is installed in first Machine Room 200 on the Shockproof rubber (not shown) in 201 years.

Moisture in the cold-producing medium that the cool cycles that is used for drier 202 removing circulates.And drier 202 is fixedly installed on the fan guard 211a of fan 211.

Ring-type forms a plurality of junction surfaces that the pipe arrangement of cool cycles comprises iron pipe and engages with iron pipe hermetically.And pipe arrangement is via first Machine Room 200 and second Machine Room 300, and at least one in a plurality of junction surfaces is arranged in first Machine Room 200 and second Machine Room 300.

Compressor 201, drier 202 are through being connected to form cool cycles with first iron pipe 203, second iron pipe 204, first copper pipe 205 and second copper pipe 206 etc.In addition, this first iron pipe 203 and second iron pipe 204 are pipe arrangements of heat transmission, and it is for carrying out the iron pipe of antirust plating, copper plating treatment on steel pipe.And first copper pipe 205 and second copper pipe 206 are disposed near the compressor 201.

Specifically, an end of the drier 202 and first iron pipe 203 is situated between by first copper pipe, 205 solder joints together shown in Fig. 3 B.

Here, because the rotation of fan 211, fan guard 211a has passed to drier 202 with vibration.At this moment, because the hardness of copper pipe is also low than iron pipe, first copper pipe 205 can absorb and lower and should vibrate, thereby can reduce the noise and the vibration of freezer 100.

In addition, an end solder joints of second copper pipe 206 and second iron pipe 204.

So the junction surface that first iron pipe 203 and first copper pipe are 205 the i.e. junction surface of first junction surface 235 and

second iron pipe

204 and 206 of second copper pipes is that first junction surface 246 all is configured near the compressor 201.Particularly, first junction surface 235,246 is arranged in first Machine Room 200.

In addition, first iron pipe 203 and second iron pipe 204 are referred to as iron pipe.And first copper pipe 205 and second copper pipe 206 are called first pipe, and first copper pipe 205 is also referred to as tube connector.At this, first pipe at least a portion is configured in first Machine Room 200.

Fig. 4 shows the stereogram of second Machine Room of the freezer in the embodiment of the present invention 1.Bottom in second Machine Room 300 as shown in Figure 4 is provided with evaporating pan 301.

Evaporating pan 301 is one of component parts of forming cool cycles, the defrost water that it is used to store, the evaporative cooling circulation produces.In addition, evaporating pan 301 is provided with the 4th copper pipe 304 that makes this Defrost water evaporating.

Fig. 5 shows the stereogram of the matched tube structure of the freezer in the embodiment of the present invention 1.As shown in Figure 5, second iron pipe 204 and the 4th copper pipe 304 are through second junction surface, 244 solder joints.And the front openings portion peripheral condensation pipe arrangement 303a that be used to prevent dewfall of second iron pipe 204 through being arranged at heat insulating box 101; Again via near the 3rd copper pipe 303 that is arranged at the evaporating pan 301, then through second junction surface 233 and first iron pipe, 203 solder joints.

In addition, the 3rd copper pipe 303 also can be at this point uses as the prolongation pipe arrangement of the condensation pipe arrangement 303a that prevents dewfall always, and is not provided with in addition.

Then, the junction surface of 303 of first iron pipe 203 and the 3rd copper pipes promptly promptly is arranged near the evaporating pan 301 at second junction surface 244 at the junction surface of 304 of second junction surface 233 and second iron pipe 204 and the 4th copper pipes.Particularly, these second junction surfaces 233,244 are arranged in second Machine Room 300.

In addition, the 3rd copper pipe 303 and the 4th copper pipe 304 are called second pipe.Be configured in second Machine Room 300 in this second pipe at least a portion.The pipe arrangement of cool cycles comprises first pipe, second pipe and the iron pipe that is connected with them like this.And first junction surface 235,246 is by an end solder joints of first pipe and iron pipe, and second junction surface 233,244 is by the other end solder joints of second pipe and iron pipe.

Fig. 6 shows that second iron pipe of freezer is crimped on the stereogram in the heat-barrier material in the embodiment of the present invention 1.As shown in Figure 6, at least a portion of first iron pipe 204 is along the inner face setting of the outer container of heat insulating box 101.And heat-barrier material 400 is gone into 204 crimping of second iron pipe in the outer container, and is close on the outer container.

In addition, the board-like material of heat-barrier material 400 for having thermal insulation is like vacuum heat insulation material.Go up the groove that forms along 204 formation of second iron pipe with 204 contacted in second iron pipe in the heat-barrier material 400 in addition.

Utilize and guarantee the needed heat-barrier material 400 of thermal insulation like this, second iron pipe 204 is crimped on the outer container.And be provided with being close between second iron pipe 204 and the outer container and can improve of the heat radiation of second iron pipe 204, and can further prevent the distortion of outer container to the outer container side.

And first iron pipe 203 equally also is crimped onto in the outer container by heat-barrier material 400.

Next the welding operation of iron pipe and plumbers shed is described.

Iron pipe and copper pipe use silver solder to weld.Because the silver solder welding is longer than spelter solder welding required time, thereby be necessary to guarantee the operating space of welding operation and the time that shortens operation.And because the Machine Room is divided into 300 two chambers in first Machine Room 200 and second Machine Room, the number of machines in each Machine Room reduces, and it is simple that the structure of pipe arrangement also becomes.The pad that also is the pipe arrangement in each Machine Room has reduced.Therefore, the space enlargement of pipe arrangement weld part periphery can guarantee to have enlarged the operating space of welding operation.

The figure of suitable welding space when Fig. 7 is iron pipe and the copper pipe welding of freezer in the explanation embodiment of the present invention 1.

The space of said suitable welding here is as the space that is fit to welding and preset space.And the junction surface of iron pipe and copper pipe can be arranged in the space that is fit to welding.

The welding of iron pipe and plumbers shed is the silver solder welding owing to need the long period, and the wall of meeting heated mechanical chamber may burn out the Machine Room during welding.At this moment, need prevent operational requirements operating time of burning out.Therefore, for the wall of heated mechanical chamber not, need when welding, make flame direction for not welding towards the direction of the wall of Machine Room.

As shown in Figure 7 particularly, the wall W of Machine Room is stepped, and this moment, the junction surface P to pipe arrangement welded.In this X-direction is horizontal direction, and Y direction is a vertical direction.In this case need be when welded joint P, the flame B when making welding is not towards the direction of the wall W of Machine Room, promptly towards welding from the direction of X-direction more than Y direction cant angle theta degree.The direction that also promptly need leave wall W at the line from the bight W1 of connecting wall W and bight W2 is provided with junction surface P.The space that junction surface P so is set is the space that is fit to welding.

At this, the space that is fit to welding is not limited to dispose with the mode that does not heat the stepped walls W shown in Fig. 7 the space of junction surface P, and the space that disposes the junction surface with the mode of all walls of heated mechanical chamber not also is the space that is fit to welding.

In addition, even be not arranged under the situation in the space that is fit to welding,, be configured in the space that is fit to welding and get final product as long as can junction surface P be drawn out in the space that is fit to welding when welding at junction surface P.

And because the Machine Room is divided into 300 two chambers in first Machine Room 200 and second Machine Room, therefore the structure of pipe arrangement is oversimplified, and also can guarantee the space that big welding is fit to.In addition because junction surface P is arranged in the space that is fit to welding thereby the operating space that can guarantee welding operation, and because the operator can more easily carry out welding operation, thereby can shorten the time of operation.

Fig. 8 A is the front view of direction of engagement at the junction surface of freezer in the explanation embodiment of the present invention 1, and Fig. 8 B is the profile of direction of engagement at the junction surface of this freezer of explanation.

Shown in Fig. 8 A, copper pipe P1 is docked with iron pipe P2 engage.And the butt joint direction at butt-welded junction surface is a horizontal direction.

Thus, shown in Fig. 8 B, carry out silver solder when welding, silver solder R fusing back contacts because of the top of self gravitation P from the junction surface flows down with junction surface P, through wander junction surface P around, thereby can be at the junction surface complete all silver coated scolder R of P.

Also promptly heat after the P of junction surface, when making silver solder R near junction surface P, fusing and aqueousization take place in silver solder R.And silver solder R because of deadweight wander junction surface P around, thereby at the junction surface the full Zhou Jun of P is covered with silver solder R.And, after coagulation between the space of silver solder R inflow junction surface P.Like this because silver solder R engages scolder because of deadweight falls, the butt joint direction at junction surface is arranged to horizontal direction, this be arranged to the contrast of vertical direction, carry out the joint of scolder more easily.

Direction at these first junction surface, 235,246 butt joint first pipes and iron pipe, second junction surface 233,244 butt joints, second pipe and iron pipe is a horizontal direction.

Weld the welding of strong dike through silver solder in addition, even thereby the influence of also not being heated and stretching etc. of welding in the horizontal direction, can carry out good welding operation at the junction surface, thereby improve operability.

Therefore, when the butt joint direction at the junction surface of mated condition is set to level, the fusing of silver solder when welding silver solder and since deadweight flow down from top, junction surface, flow into the junction surface around, thereby the Quan Zhouneng at junction surface easily is coated with full silver solder.Therefore, can shorten the time of welding operation.

Shown in Fig. 3 A and Fig. 3 B, be provided with first copper pipe 205 between the drier 202 and first iron pipe 203 in addition.This is because drier 202 wall thickness are bigger, needs a lot of thermal capacity carrying out silver solder when welding with first iron pipe 203, thereby needs the more time during welding operation.Also promptly through between the drier 202 and first iron pipe 203, first copper pipe 205 being set, replacing the silver solder welding between drier 202 and first iron pipe 203 with the spelter solder welding of 205 of drier 202 and first copper pipes, thereby can shorten the operating time of welding.

In addition, the joint method of drier 202, first copper pipe 205 and first iron pipe 203 comprises following two kinds of methods.

First method is after drier 202 and first copper pipe, 205 prior solder joints, to weld first copper pipe 205 and first iron pipe 203 again.And the length of first copper pipe 205 with after first copper pipe 205 stated in second method compare setting shorter.

Shown in Fig. 3 B, drier 202 is installed on the fan guard 211a at this.And first copper pipe 205 is because length is shorter relatively in first method, and the drier 202 and first copper pipe 205 of solder joints are fixed on the fan guard 211a integratedly in advance.First iron pipe 203 is fixed in the heat insulating box 101 in addition.

Like this, the both sides at the junction surface of first copper pipe 205 and first iron pipe 203 all are fixed, thereby in the operation of the flux of removing when welding, can not make load on the junction surface escape to transmit efficiently to increase the weight of.Thus, for example through metallic brush etc. when the weld part transmission increases the weight of, can transmit efficiently, can make flux remove operation and carry out efficiently.Therefore can shorten the operating time of welding operation.

Second method is with first copper pipe 205 and first iron pipe, 203 prior solder joints, the solder joints drier 202 and first copper pipe 205 more in addition.Moreover the length of first copper pipe 205 is longer than first copper pipe 205 in first method.

At this moment, because first copper pipe 205 and the prior solder joints of first iron pipe, 203 quilts, thereby can be with the high strength welded joint.In addition, the length of first copper pipe 205 is longer relatively in second method.The vibrational energy that produces when therefore operating is by 205 absorptions of first copper pipe and inhibition.The vibration at junction surface in the time of suppressing thus to weld the drier 202 and first copper pipe 205, and can shorten operating time of welding operation.

Because first copper pipe 205 and first iron pipe 203 weld with silver solder in advance, the on-the-spot spelter solder welding of only carrying out the drier 202 and first copper pipe 205 gets final product, thereby has shortened the time of welding operation in addition.

As shown in Figure 6 in addition, in order to ensure thermal insulation, second iron pipe 204 is crimped in the outer container by heat-barrier material 400.Like this because heat-barrier material 400 crimping second iron pipe 204, thereby can weld second iron pipe 204 down at fixing state.So welding operation becomes easily, thereby can shorten the operating time of welding operation.

Because above setting according to the freezer in the embodiment of the present invention 1, even the part of the pipe arrangement of cool cycles has been used iron pipe, also can be guaranteed the operating space of welding operation, and shorten the time of welding operation.

Freezer in the above-mentioned disclosed embodiment 1 of the present invention, all contents all are used for example and unrestricted the present invention.

For example first iron pipe 203 and first iron pipe 204 but also can use the iron pipe that does not carry out antirust plating or copper plating treatment on steel pipe, to have carried out antirust plating or copper-plated iron pipe in the embodiment of the present invention 1.

In addition; Second iron pipe 204 is crimped on heat-barrier material 400 in the outer container for having the tabular vacuum heat insulation material of groove in the embodiment of the present invention 1, but heat-barrier material 400 also can be anyly can second iron pipe 204 be crimped on the material with thermal insulation in the outer container.

The direction of welding with horizontal direction when in addition, the butt joint direction at junction surface is also made.

235,246, the second junction surfaces 233,244, first junction surface in the embodiment of the present invention 1 are the junction surface of copper pipe and iron pipe in addition, but also can be the junction surfaces of iron pipe and iron pipe.Also promptly can pass through silver solder solder joints iron pipe and iron pipe.

In the embodiment of the present invention 1, liftoff being arranged in first Machine Room 200 and second Machine Room 300 of the both ends open part of first iron pipe 203 and second iron pipe 204 engaged in addition.But also be not limited thereto, also can respectively the both ends open portion of first iron pipe 203 and the both ends open of second iron pipe 204 partly be arranged in first Machine Room 200 and second Machine Room 300, engage with other pipe arrangements in separately the Machine Room.

Also promptly describe ground with reference to Fig. 5, the end openings of the second open iron pipe 204 directly is connected with the top opening of first iron pipe 203 that is positioned at same second Machine Room 300 in second Machine Room 300.Matched tube structure also can be after the end openings of first iron pipe 203 is passed heat insulating box, and 300 inner openings in second Machine Room are connected to the condensation pipe arrangement 303a that prevents dewfall after this end openings engages with the 3rd copper pipe 303 once more.

In this case; The condensation pipe arrangement 303 that prevents dewfall is arranged at the downstream of high-pressure side condensation pipe arrangement; And be not in the state of high pipe arrangement temperature, as at the effective pipe arrangement that suppresses in the storehouse, to invade the situation etc. of heat from the front openings edge of heat insulating box 101.

Also promptly, the both ends open portion of first iron pipe 203 or second iron pipe 204 and nonessential being arranged on discretely in first Machine Room 200 and second Machine Room 300 also can be arranged in the space of same Machine Room.At this moment, space, a plurality of Machine Room can be arranged, thereby can enlarge the operating space of welding operation and improve the operability of welding.

(embodiment 2)

Situation when first Machine Room 220 is arranged on the heat insulating box back side below is described in the freezer 120 of embodiment of the present invention 2.Different place in embodiment of the present invention 2 and the embodiment 1 only is described in addition.

Fig. 9 A is the profile of the freezer in the embodiment of the present invention 2, and Fig. 9 B is the back view of this freezer.Shown in Fig. 9 A, 9B, as first Machine Room 220, the condenser that electric wire shape ground is formed with iron pipe 500 is housed in this Machine Room with the space that is arranged at the heat insulating box back side.

Under the situation at the back side that electric wire shape iron pipe is arranged on heat insulating box, the matched tube structure of cool cycles becomes simply, thereby can shorten weld interval and operating time like this.And being arranged at second Machine Room 300 with 220 different positions, first Machine Room is the bottom of heat insulating box, and the compressor (not shown) is configured in second Machine Room 300.The space that such structure can be guaranteed to have space, a plurality of Machine Room and enlarge welding operation, thereby improved the operability of welding.

In addition, also can not use blowing fan in the embodiment of the present invention 2, and use free convection to dispel the heat from condenser to the condenser forced air supply.

(embodiment 3)

Below in the freezer of explanation in the embodiment of the present invention 3 in 130, in heat insulating box, dividing has first Machine Room 230, and the situation when it is arranged on the midriff at the heat insulating box back side.The place that embodiment 3 and embodiment 1 are different only is described in addition.

Figure 10 is the stereogram of the rear side of the freezer in the embodiment of the present invention 3.In the freezer 130, as first Machine Room 230, compressor 201 is arranged in first Machine Room 230 with the space of the formation recess of the back side midriff of heat insulating box.And being arranged at second Machine Room 300 with 230 different positions, first Machine Room is the bottom of heat insulating box.The condenser that electric wire shape ground is formed with the iron pipe (not shown) is arranged in second Machine Room 300.

Under the situation of the back side midriff that electric wire shape iron pipe is arranged on heat insulating box, the matched tube structure of cool cycles becomes simply, thereby can shorten weld interval and operating time like this.The space that such structure can be guaranteed to have space, a plurality of Machine Room and enlarge welding operation, thereby improved the operability of welding.

(embodiment 4)

The place that embodiment of the present invention 4 and embodiment 1 are different below only is described.Figure 11 A shows the stereogram of the matched tube structure of the freezer in the embodiment of the present invention 4.Shown in Figure 11 A, from the path of compressor 201 to the drier 202 of cool cycles, have compressor 201, second copper pipe 206, second iron pipe 204, be arranged on the 4th copper pipe 304 in the evaporating pan, be arranged on the 3rd copper pipe 303, first iron pipe 203, first copper pipe 205 and the drier 202 of freezer front shell edge.

Thus; Because the high-temperature gas of discharging from compressor 201 heat radiation second copper pipe 206 of first Machine Room that is arranged at heat insulating box top and second iron pipe 204, therefore with the outside of the heat insulating box bottom surface sections environment temperature in second Machine Room that is provided with height in the past not.Thereby the heat in the storehouse is invaded in second Machine Room of having reduced outside the storehouse.

On the other hand, the result of dispelling the heat in second copper pipe 206 and second iron pipe 204 in first Machine Room is that environment temperature rises.But because that the epimere of freezer 100 is the situation of the higher relatively refrigerating chamber of the design temperature storehouse in is more, therefore compare, reduced the temperature difference inside and outside the storehouse greatly with the refrigerating chamber of hypomere.Further because first Machine Room is the space until indoor top, and its ventilation has also increased than second Machine Room, thereby can suppress the heat that in the storehouse, transmits from first Machine Room.

Above structure makes the whole cooling performance of freezer to be improved, and has further reduced the electric weight that is consumed.

In addition, Figure 11 B shows the stereogram of the another kind of matched tube structure of freezer in the embodiment of the present invention 4.For example at the 4th copper pipe 303 of Figure 11 A and the 5th copper pipes 305 that are in the freezer bottom surface of 303 additional settings of the 3rd copper pipe.Can prevent the dewfall of freezer bottom surface and front lower shell thus, thereby the freezer of high reliability is provided.

In addition, Figure 11 C shows the stereogram of the another kind of matched tube structure of freezer in the embodiment of the present invention 4.Second copper pipe 206 among Figure 11 A for example is configured in by a plurality of tabular fins, flowing has the refrigerant pipe of cold-producing medium to constitute in the fin tube type heat exchanger.Can increase the condensation ability thus and reduce the electric power that freezer consumes.

In addition, Figure 11 D shows the stereogram of the another kind of matched tube structure of freezer in the embodiment of the present invention 4.Cancelled the 3rd copper pipe 303 of the front shell periphery that is arranged on first refrigerating chamber 102 among Figure 11 A.Can reduce the heat in the Guan Chuanxiang storehouse thus, also can reduce the electric power that freezer consumes.

In addition, Figure 11 E shows the stereogram of the another kind of matched tube structure of freezer in the embodiment of the present invention 4.Additional the 6th copper pipe 306 that is provided with in the freezer back side in Figure 11 A.Increase the condensation ability thus and reduce the electric power that freezer consumes.Further the freezer that prevents in freezer back side dewfall can be provided.

(embodiment 5)

The place different with embodiment 1 below only is described in the embodiment of the present invention 5.Figure 12 shows the stereogram of the matched tube structure of the freezer in the embodiment of the present invention 5.Shown in figure 12, be provided with compressor 201, second copper pipe 206, second iron pipe 204 in the path of compressor 201 to drier 202, be arranged on the 4th copper pipe 304 in the evaporating pan 301, be arranged on the 3rd copper pipe 303 and the drier 202 of freezer front shell periphery.First iron pipe and first copper pipe promptly are not set yet, but after the 3rd copper pipe 303, drier 202 are set.

The shell periphery extends towards the rear the 3rd copper pipe 303 of the prior art from the freezer front, and extends to the freezer top through first iron pipe, finally arrives drier 202.When the 3rd copper pipe 303 was through freezer front shell periphery in this process, the cold air meeting cooling tubing that bleeds from the gap between door and the outer container made condensation of refrigerant liquefaction.But afterwards because long to the path distance of drier, and the heat exchange between the pipe arrangement outside makes the cold-producing medium of liquefaction vaporize once more, thereby has the obviously problem of decline of heat-sinking capability.

But; In embodiment of the present invention 5, be provided with compressor 201, second copper pipe 206, second iron pipe 204 from the path of compressor 201 to drier 202, be arranged on the 4th copper pipe 304 evaporating pan 301, be arranged on the 3rd copper pipe 303 and the drier 202 of freezer front shell periphery.As a result, the 3rd copper pipe 303 distance that the shell periphery begins rearward to extend up to reaching drier 202 from the freezer front has compared with prior art shortened, from the 3rd copper pipe 303 to the path of drier 202, heat is transmitted and also can significantly be reduced.And can reduce the gas ratio in the cold-producing medium, thereby increase circulating mass of refrigerant and refrigerating capacity, can also reduce the electric power that freezer consumes.

(table 1)

Freezer pipe arrangement pattern and number of welds in embodiment of the present invention 4 and 5 have been shown in this appearance 1.In pipe arrangement form in addition,, also can obtain effect same as described above so long as can reduce the spacial structure of pipe arrangement in the Machine Room.Whether be that copper, iron are irrelevant with the pipe arrangement material in addition,, also can obtain above-mentioned identical effect so long as can reduce pipe arrangement spacial material in the Machine Room.

(embodiment 6)

Below in the explanation embodiment of the present invention 6, with the heat insulating box outer container outside in abutting connection with first Machine Room is set, and it is configured in the situation of heat insulating box upper surface.And embodiment of the present invention 6 and embodiment 1 difference only are described.

Figure 13 is the profile of the freezer in the embodiment of the present invention 6.Embodiment of the present invention 6 is that with the difference of embodiment 2 first Machine Room 260 is arranged on the upper surface of heat insulating box.

Among Figure 13, the left side is the covering front surface that is provided with the insulated door (not shown) of the front openings portion that can close freezer 160, and the right side is the back side of freezer 160.Freezer 160 in the embodiment of the present invention 6, as first Machine Room 260, the condenser that electric wire shape ground is formed with iron pipe 500 is housed in first Machine Room 260 with the space of heat insulating box upper surface.In addition, except that first Machine Room 260, in the bottom of heat insulating box second Machine Room 300 is set, the compressor (not shown) is arranged in second Machine Room 300.

In addition, in the embodiment of the present invention 6,260 inner rears (rear side), first Machine Room are provided with blowing fan 501.And the front and back of first Machine Room 260 is respectively equipped with passage 502.

Blowing fan 501 capable of using like this is gas outside the freezer rear sucks, and pass through forced exhaust forwards, thereby improve heat-sinking capability.

Such structure also can have space, a plurality of Machine Room, and the operating space of having guaranteed to enlarge welding operation, thereby improves the operability of welding.

(usability on the industry)

The present invention is applicable to large-scale family expenses freezer and commercial freezer of various kinds such as freezer, freezing air conditioner etc.

Claims

1. a freezer has heat insulating box, and this heat insulating box has outer container, interior case, and is arranged on the heat-barrier material between said outer container and the said interior case, it is characterized in that:

Comprise:

Ring-type constitutes the pipe arrangement of cool cycles hermetically, the junction surface that its at least a portion has a plurality of iron pipes and engages with said iron pipe;

First Machine Room, it is arranged to the outside in abutting connection with said outer container; With

Second Machine Room, it is arranged in the outside adjacency of bottom surface sections of the said outer container of the position different with said first Machine Room,

Said pipe arrangement is via said first Machine Room and said second Machine Room,

Said pipe arrangement comprises that at least a portion is arranged on the pipe of first in said first Machine Room, at least a portion is arranged on the pipe of second in said second Machine Room and connects the said iron pipe that said first pipe and said second is managed; First junction surface of one end of said first pipe of solder joints and said iron pipe is arranged in said first Machine Room; And second junction surface of the other end of said second pipe of solder joints and said iron pipe is arranged in said second Machine Room

First copper pipe and second copper pipe of said first pipe for processing by copper product, three copper pipe and four copper pipe of said second pipe for processing by copper product.

2. freezer as claimed in claim 1 is characterized in that: also comprise: be arranged on the compressor in said first Machine Room and be arranged on the evaporating pan that is used to store and evaporate the defrost water of said cool cycles generation in said second Machine Room.

3. freezer as claimed in claim 1 is characterized in that: said first Machine Room is arranged on the back side portion of said heat insulating box.

4. freezer as claimed in claim 1 is characterized in that: said first junction surface and said second junction surface are configured in welding respectively the time makes flame not heat the space of suitable welding of all walls of wall of wall and said second Machine Room of said first Machine Room.

5. freezer as claimed in claim 1 is characterized in that: said first copper pipe is for connecting the tube connector of the said iron pipe and the drier of the moisture of the cold-producing medium that is used for removing said cool cycles.

6. freezer as claimed in claim 1 is characterized in that: the direction that said first pipe and said iron pipe are docked in said first junction surface is a horizontal direction, and the direction that said second pipe and said iron pipe are docked in said second junction surface is a horizontal direction.

7. freezer as claimed in claim 1 is characterized in that: at least a portion of said iron pipe is provided with along said outer container inner face, and heat-barrier material is crimped on said outer container with the part of said iron pipe, and said heat-barrier material is the plate-shaped member with thermal insulation.