CN101995140A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN101995140A CN101995140A CN2010101155143A CN201010115514A CN101995140A CN 101995140 A CN101995140 A CN 101995140A CN 2010101155143 A CN2010101155143 A CN 2010101155143A CN 201010115514 A CN201010115514 A CN 201010115514A CN 101995140 A CN101995140 A CN 101995140A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- door
- circuit board
- storeroom
- test section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D27/00—Lighting arrangements
- F25D27/005—Lighting arrangements combined with control means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
- E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/043—Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2327/00—Lighting arrangements not provided for in other groups of this subclass
- F25D2327/001—Lighting arrangements on the external side of the refrigerator, freezer or cooling box
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
- F25D2400/361—Interactive visual displays
Abstract
The object of the invention is to obtain a refrigerator having an operation part with improved operation performance and cleaning performance. The refrigerator is characterized by comprising: a storage space arranged in a main body of the refrigerator; a storage space door for opening/closing a front opening of the storage space; a door front panel with light permeability arranged on front face of the storage space door; an operation part arranged on front of the door front panel; a detection part contacted or close to the back side of the operation part and the door front panel to detect variation of electrostatic capacitance; a display part for displaying an operation result of the operation part; a lighting mechanism configured to light the display part from the back; a control part configured to control the lighting mechanism based on a detection value of the detection part; a circuit board equipped with the detection part and the lighting mechanism; and an insertion part arranged on an edge of the storage space door to store the circuit board in the storage space door.
Description
Technical field
The present invention relates to refrigerator.
Background technology
As existing refrigerator, known have in the door face portion possess operating portion (for example button etc.), by operating this operating portion, thereby make the structure of many function actions of snap frozen, fast refrigeration, automatic ice-making plant etc.In addition, as aforesaid operations portion, the known mechanical switch that microswitch etc. is arranged.
Have again, in household appliances in recent years, the product of the soft-touch control that uses electrostatic capacitive is arranged.As an example of the refrigerator that possesses soft-touch control, the structure of patent documentation 1 record is arranged.
In the structure of patent documentation 1 record, the soft-touch control with contact electrode and opposite electrode portion is arranged on face in front of the door.In addition, the front face of touch electrode is outstanding to the face side of guidance panel.Opposite electrode portion possesses two sided pcb and the pair of electrodes that is equivalent to insulator.In this structure, when user's hand or finger touches contact electrode, then interelectrode electrostatic capacitance changes.The variation of this electrostatic capacitance is taken out as switch connection, cut-off signal.
Patent documentation 1: TOHKEMY 2006-304077 communique.
But, in the structure of patent documentation 1 record,, use the wet hand or the occasion of finger manipulation soft-touch control the user because contact electrode is outstanding to the face side of guidance panel, moisture invades inside from the gap of the part that is provided with soft-touch control, might make breakages such as electric product.
Have again, in the occasion of wanting wiping clean-out door surface, owing to be not the plane, so the cleaning complexity around the soft-touch control, owing to exceedingly carry out wiping cleaning etc., thereby worry can become the reason of faulty operation and switch fault.
In addition, because the user is with the hand or the finger manipulation contact electrode that are stained with grease, so the worry contact electrode is corroded and does sth. in advance deterioration.
Summary of the invention
The present invention proposes in view of the above problems, and purpose is to obtain possessing the refrigerator of the operating portion that has improved operability and cleaning property.
In order to address the above problem, refrigerator of the present invention is characterised in that to possess: the storeroom of being located at refrigerator main body; Open and close the storeroom door of the front openings of this storeroom; The panel in front of the door of being located at the front of this storeroom door and having light transmission; Be located at this operating portion of panel front in front of the door; Contact with the back of the rear of this operating portion and above-mentioned panel in front of the door or near and be provided with and detect the test section of the variation of electrostatic capacitance; The display part that shows the operating result of aforesaid operations portion; Shine the lighting mechanism of this display part from the rear; Control the control part of above-mentioned lighting mechanism based on the detected value of above-mentioned test section; Be provided with the circuit board of above-mentioned test section and above-mentioned lighting mechanism; And be located at the edge part of above-mentioned storeroom door and the foregoing circuit plate is contained in insertion section in this storeroom door.
In addition, refrigerator of the present invention is characterised in that to possess: the storeroom of being located at refrigerator main body; Open and close the storeroom door of the front openings of this storeroom; Be filled in the foam-thermal insulation in this storeroom door; Be located at the front of this storeroom door and have insulating properties and the glass component of light transmission with plane; Be arranged to form to above-mentioned foam-thermal insulation side the case cover of recess from the front of above-mentioned storeroom door; Be located at the edge part of above-mentioned storeroom door and the insertion section that is communicated with above-mentioned recess; Be located at the operating portion of the front of above-mentioned glass component with the same level shape; Have operating result with aforesaid operations portion and be shown in the film of display part of the front of above-mentioned glass plate; Shine the light emitting diode of the display part of this film towards the front of above-mentioned glass plate from the rear; Be located at the rear of aforesaid operations portion and detect the test section of the variation of electrostatic capacitance; Control the control part of above-mentioned lighting mechanism based on the detected value of this test section; Be provided with the circuit board of above-mentioned light emitting diode and above-mentioned test section; And hold this circuit board and with the circuit board housing of above-mentioned film covering front, this circuit board housing is inserted in the above-mentioned case cover from above-mentioned insertion section, above-mentioned film contact with the back of above-mentioned glass component or near and be provided with, and above-mentioned test section contacts with the back of above-mentioned film or approaching and be provided with.
In addition, be characterised in that, have the gathering sill of being located at above-mentioned case cover and be located at the slide unit of foregoing circuit plate housing, foregoing circuit plate housing inserts from above-mentioned insertion section, this circuit board housing is directed along above-mentioned gathering sill at above-mentioned slide unit and is inserted under the state in the above-mentioned case cover, above-mentioned film contact with the back of above-mentioned glass component or near and be provided with, and above-mentioned test section contacts with the back of above-mentioned film or approaching and be provided with.
In addition, be characterised in that, have and be located at the fastening portion on the foregoing circuit plate housing and be located at limited part on the above-mentioned case cover, be inserted into occasion in the above-mentioned case cover at foregoing circuit plate housing, above-mentioned fastening portion opposing elastic force after crossing above-mentioned limited part fastening on this limited part.
In addition, be characterised in that above-mentioned insertion section is used with the edge part of above-mentioned storeroom door and become plane lid to cover.
In addition, be characterised in that above-mentioned insertion section is located on the side, bottom surface of above-mentioned storeroom door or top arbitrary, the connector of foregoing circuit plate is connected with cable side-connector in being drawn out to above-mentioned case cover.
Effect of the present invention is described.
According to the present invention, can access the refrigerator that possesses the operating portion that has improved operability and cleaning property.
Description of drawings
Fig. 1 is the front view of the refrigerator that relates to of embodiments of the present invention.
Fig. 2 is the represented display part of the P portion of Fig. 1 and the figure of operating portion.
Fig. 3 is the figure of the hinge opposite sides of door shown in Figure 1.
Fig. 4 is the A-A cutaway view of door shown in Figure 1.
Fig. 5 is the vertical view of the circuit board assemblies that relates to of embodiments of the present invention.
Fig. 6 is the B-B cutaway view of door shown in Figure 1.
Fig. 7 is the figure of the circuit board housing that relates to of explanation embodiments of the present invention.
Fig. 8 A is the exploded perspective view of the circuit board assemblies that relates to of embodiments of the present invention.
Fig. 8 B is the B-B cutaway view of door shown in Figure 1, is the details drawing of LED illuminating part.
Fig. 9 is the door that the expression embodiments of the present invention relate to, and is the figure that the example of bottom surface is located at the insertion section in expression.
Among the figure:
2a-left side refrigerating-chamber door, the 2c-doorframe, 6-is panel in front of the door, the 6a-glass plate,
The 7-foam-thermal insulation, 8-door inner panel, the 9-operating portion, the 10-display part, the 11-lid,
The 12-circuit board assemblies, the 13-LED illuminating part, the 14-test section, the 15-circuit board,
The 15a-surface, 15b-hole portion, the 16-film, 17-circuit board housing, the 17a-flange part,
The 18-case cover, 19-colored paint face, the 19a-protective film, the 20-slide unit,
The 21-recess, the 22-connector, 23-fastening portion, the 24-insertion section, the 25-gathering sill,
The 25a-terminal part, the 25b-inlet portion, the 25c-guide part, the 26-space, the 27-limited part,
The 28-cable, 29-cable side-connector, 30-outlet.
The specific embodiment
Below, with reference to accompanying drawing embodiments of the present invention are described.
At first utilize Fig. 1～Fig. 4, embodiment 1 is described.Fig. 1 is the front view of the refrigerator that relates to of embodiments of the present invention.Fig. 2 is the represented display part of the P portion of Fig. 1 and the figure of operating portion.Fig. 3 is the figure of the hinge opposite sides of door shown in Figure 1.Fig. 4 is the A-A cutaway view of door shown in Figure 1
In Fig. 1, mark 1 is a refrigerator main body, and refrigerator main body 1 has refrigerating chamber 2d, refrigerating chamber 4d1 and a vegetable compartment 5d etc. successively from last.Between refrigerating chamber 2d and refrigerating chamber 4d1, be provided with quick freeze chamber 4d2, and be provided with ice-making compartment 4d3 on the next door of quick freeze chamber 4d2.
In addition, the front openings at each storeroom is provided with the door that opens and closes this front openings.Promptly, be provided with left refrigerating-chamber door 2a and right refrigerating-chamber door 2b in the front openings of refrigerating chamber 2d, each front openings at refrigerating chamber 4d1, quick freeze chamber 4d2, ice-making compartment 4d3 and vegetable compartment 5d is respectively equipped with refrigerating chamber door 4b, quick freeze chamber door 4c, ice-making compartment door 4a and vegetable compartment door 5.
Left side refrigerating chamber 2a and right refrigerating chamber 2b are supported with axle freely by rotations such as the upper hinges 3 of being located at refrigerator main body 1 top respectively (left hinge 3a, right hinge 3b).Promptly, constitute opposite opened, be so-called appearance of french doors.
In addition, refrigerating chamber door 4b, quick freeze chamber door 4c, ice-making compartment door 4a and vegetable compartment door 5 are respectively drawer type doors, pull out freely with the container of separately storeroom.
And left refrigerating-chamber door 2a and right refrigerating-chamber door 2b, refrigerating chamber door 4b, quick freeze chamber door 4c, ice-making compartment door 4a and vegetable compartment door 5 are provided with the glass plate 6a with transparency on its outer surface.
Foam-thermal insulation 7 is filled foaming between panel in front of the door 6 that is made of glass plate 6a and door inner panel 8 as shown in Figure 4.Panel 6 is that the thickness of slab of glass plate 6a is 2mm～3.5mm in the present embodiment in front of the door.This thickness of slab is the size that glass plate 6a can not break or crack etc. because of the impact of generation such as when refrigerator is assembled, when refrigerator when carrying and refrigerator use.
In addition, in occasion of further guaranteeing intensity and attenuate thickness of slab etc., can also implement hot intensive treatment or chemical enhanced processing etc. to glass plate 6a.Have, glass plate 6a is an insulator again.
Secondly, in Fig. 1 and Fig. 2, mark 9 is operating portions.Operating portion 9 is operated from the outside by the user, thereby sets the room temperature of each storeroom of refrigerating chamber 2d and refrigerating chamber 4d1 etc., and refrigerating chamber 2d or refrigerating chamber 4d1 are cooled off fast, perhaps sets the size of ice making.In addition, be located on the refrigerating chamber 2d, make storage space become decompression or hypoxia, adjusting is used to realize keeping the freshness of foodstuff storing and the temperature of the storeroom (not shown) that suppresses oxidative degradation, perhaps sets conversion decompression or protoxydic function for.Promptly, by user's operating operation portion 9, thereby can set all multi-functional of refrigerator.
In addition, mark 10 is display parts.Display part 10 will be presented at the outside of refrigerator main body 1 from the input results of operating portion 9.Thus, the user can confirm the operation carried out with operating portion 9, and all multi-functional state of setting before confirming.
Operating portion 9 and display part 10 are not the structure that special panel is installed, but are located on the glass plate 6a.Promptly, the glass plate 6a that is located at left refrigerating-chamber door 2a is arranged to comprise operating portion 9 and display part 10 interior, the outer surface integral body that runs through this left side refrigerating-chamber door 2a becomes the plane.
In other words, operating portion 9 and display part 10 are set directly at glass plate 6a promptly in front of the door on the panel 6.Therefore, omitted existing guidance panel.
In addition, the back side of glass plate 6a has also applied colored paint except display part 10.Thus, foam-thermal insulation 7 is processed into from face side be can't see, and since display part 10 clearly as seen, so constitute the good door of aesthetic appearance.
Secondly, with reference to Fig. 2 operating portion 9 and display part 10 further are elaborated.
In Fig. 2, the demonstration of the word segment that with dashed lines surrounds (each literal of freezing, refrigeration, ice making, snap frozen and vacuum cold) is presented at the back side of glass plate 6a by direct printing etc.On the other hand, operating portion 9 is meant the front (panel 6 promptly, the front of glass plate 6a) in front of the door of the position relative with the back side of having printed this literal.Have again, as at the back side of glass plate 6a setting operation with the method that shows (above-mentioned word segment), except printing, can enumerate etching and inlay etc.
In addition, in Fig. 2, the part of surrounding with solid line is to be accompanied by the input of being undertaken by the operation of aforesaid operations portion 9 and the display part 10 that shows all multi-functional set conditions.And this literal shows that (" strong (low temperature), in, weak ", " strong (refrigeration), in, weak ", " big, standard, stop ", " fast refrigeration, snap frozen ", " vacuum ice temperature, vacuum cold, conversion (ice is warm) ") represent at film surface described later with printing etc.
This film is that install in the mode that is adjacent to or the gap is minimum at the back side of glass plate 6a at panel 6 in front of the door.Thus, see through glass plate 6a and can confirm exactly that from the front of left refrigerating-chamber door 2a this literal shows.It is high and be made of the good door of aesthetic appearance of outer surface the glass plate on plane promptly, to constitute observability.
In addition, operating portion 9 and display part 10 are provided with up and down as shown in Figure 2 side by side.Display part 10 constitutes as the function that refrigerator main body 1 had can show that fast refrigeration or snap frozen are the content in the action etc.
Have, the literal of display part 10 shows by the LED (light emitting diode) on the aftermentioned circuit board etc. illuminated, and shines glass plate 6a front, and constitutes emersion ground as seen again.
Secondly, in Fig. 3, mark 11 is lids of being located at left refrigerating-chamber door 2a side.Lid 11 is located at the hinge opposition side of left refrigerating-chamber door 2a, and be located at and adjacent right refrigerating-chamber door 2b between.In this structure, in the occasion of closing left refrigerating-chamber door 2a and right refrigerating-chamber door 2b, lid 11 constitutes in appearance that the user can't see.
Secondly, in Fig. 4, mark 2a is left refrigerating-chamber door, and mark 6 is panels in front of the door, and mark 7 is foam-thermal insulations, and mark 8 is inner panels, and mark 12 is circuit board assemblies.Circuit board assemblies 12 is by possessing LED illuminating part 13 that display part 10 is thrown light on, detecting test section 14, the judging part (not shown) of variation of electrostatic capacitance and the circuit board 15 that comprises the automatic control part (not shown) etc. of microcomputer, be printed with the film 16 of display text, and formation such as circuit board housing 17.
With regard to circuit board 15 (comprising test section 14), the one side of the face side of this circuit board 15 covers with film 16, and another side covers with circuit board housing 17.Film 16 is adjacent to test section 14.In addition, film 16 is that light with LED illuminating part 13 is transmitted to the structure that the surface sees through to glass plate 6a side again from the back side.
Have, judging part (not shown) is the electrostatic capacitance change between detecting operation portion 9 and the test section 14 in circuit board 15 again.Be included in the vicissitudinous occasion of electrostatic capacitance, with the variation starting of oscillation accordingly of this electrostatic capacitance, the oscillating circuit that amplitude changes.Thus, read the switching signal of judging part output, the automatic control part of on/off signal drives load.Have again, make according to the user only front by operating portion 9 or user for the action of cleaning wiping refrigerator front (left refrigerating-chamber door 2a) etc., do not export the switching signal of judging part output, the structure of on/off signal.
Promptly, the glass plate 6a that constitutes the panel in front of the door 6 of refrigerator is insulator, and is the sheet material with light transmission.And, for glass plate 6a front as operating portion 9, at the back side of the operating portion 9 of glass plate 6a, utilize the content of operation that comes display operation portion 9 with the literal of demonstrations such as printing.
At the back side of the glass plate 6a relative, closely to be provided with the test section 14 of being located on the circuit board 15 and being connected by film 16 with judging part with operating portion 9.The literal of display part 10 grades that are set up in parallel with operating portion 9 shows and utilizes printing to wait surperficial enterprising line display at the film 16 on covering board 15 surfaces.
And the literal of display part 10 shows and utilizes the LED illuminating part be located on the circuit board 15 13 to express from back side illuminaton.Have again, when hand or finger touch operating portion 9, then the test section on the circuit board 15 14 detect and glass plate 6a between the variation of electrostatic capacitance, inform the judging part on the circuit board 15.And, when judging part detects input, then make the load action by automatic control part.
Here, the load by the action of automatic control part be turn round continuously in the pressure of the occasion freeze cycle of snap frozen, the pressure of circulating cold air fan (not shown) the positive opening control etc. of the damper of running or control cold air supply continuously.By controlling these loads, carry out the snap frozen of fast refrigeration or the refrigerating chamber 4d1 of refrigerating chamber 2d.
Be provided with the test section 14 that detects electrostatic capacitance change on circuit board 15, when judgement section judges went out the variation of electrostatic capacitance, the buzzer that circuit board 15 is possessed sent alert sound, and was accompanied by the control content change, and alert sound is added scale.
Utilize Fig. 2 that above-mentioned situation is specifically described.Be adjusted to the occasion of the setting of " strong, in, weak " in temperature, in the present embodiment, alert sound added scale by following circulation with refrigerating chamber 2d or refrigerating chamber 4d1.
" weak (bass " do ") → in (middle pitch " mi ") → strong (high pitch " so ") → weak (bass " do ") → ... "
Thus, even can't see the occasion that the user of literal operates, also can utilize the difference of above-mentioned scale to confirm the temperature setting.
In addition, the selection additional function of snap frozen and fast refrigeration etc. is when input, and the circulation below utilizing makes alert sound change scale and informs number of times.
" snap frozen (bass " do ") → fast refrigeration (middle pitch " mi ") → snap frozen and fast refrigeration (high pitch " so ") → stop (high pitch twice " la, la ") → snap frozen (bass " do ") ... " especially, in the occasion of having selected plain vanilla (stopping), as mentioned above, by making the alert sound number of times for repeatedly, even thereby without visual identity, the user also can easily confirm setting content according to the sense of hearing.
Secondly, in Fig. 4, mark 18 expression case cover.Case cover 18 plays the effect that circuit board assemblies 12 is isolated from foam-thermal insulation 7.In addition, play that circuit board assemblies 12 is remained on effect in the case cover 18, so that the film 16 on circuit board 15 surfaces is adjacent to or be glass plate 6a near panel 6 in front of the door.
In addition, the short side direction of the short side direction of circuit board assemblies 12 and glass plate 6a disposes across.This is based on glass plate 6a is applied heat treated occasion, the character that the distortion of glass plate 6a manifests at length direction easily.Promptly, in view of this character, make the structure of the deformation effect of the inhibition glass plate 6a in the occasion that is provided with circuit board assemblies 12.
Here, the occasion of length direction to pack into along the length direction of circuit board assemblies 12 at glass plate 6a is subjected to the influence of the distortion of glass plate 6a, is easy to generate the gap between the test section 14 on glass plate 6a and the circuit board 15.Thus, there is the problem that successfully is not delivered to test section 14 from the input content of operating portion 9.
So in the present embodiment, the length direction of circuit board assemblies 12 is provided on the direction that the length direction with glass plate intersects.
In addition, by with refrigerator the door surface make a glass plate 6a, thereby can reduce manufacturing cost.Have, the gap of glass plate 6a and test section 14 comprises that the distortion of glass plate 6a needs to be set at below the 0.2mm again.Clear and definite according to present inventor's test etc.: as, to have the problem that successfully is not delivered to test section 14 from the input content of operating portion 9 in the occasion that has produced the gap more than the 0.2mm.
In addition, the door of the refrigerating chamber 2d that is located in the topmost setting of refrigerator main body 1 of circuit board assemblies 12 is on the left refrigerating-chamber door 2a.Its height and position is the position that child's hand reaches.And the person of being to use sees maneuverable position easily.
Have again, the occasion of present embodiment, operating portion 9 and display part 10 be not as existing ratio panel 6 is outstanding in front of the door.Thus, child is difficult to identifying operation portion 9 and display part 10 the situation there itself.Promptly, can reduce the naughty action that causes by child.
Secondly, with reference to Fig. 5～Fig. 8 embodiments of the invention 2 are described.
Fig. 5 is the vertical view of the circuit board assemblies that relates to of embodiments of the present invention.Fig. 6 is the B-B cutaway view of door shown in Figure 1.Fig. 7 is the figure of the circuit board housing that relates to of explanation embodiments of the present invention.Fig. 8 A is the exploded perspective view of the circuit board assemblies that relates to of embodiments of the present invention.Fig. 8 B is the B-B cutaway view of door shown in Figure 1, is the details drawing of LED illuminating part.Fig. 8 C is the detailed section view of existing LED illuminating part.
In the drawings, mark 2a is left refrigerating-chamber door, and mark 6 is panels in front of the door, and mark 7 is foam-thermal insulations, and mark 8 is inner panels, and mark 11 is lids, and mark 12 is circuit board assemblies, and mark 16 is films, and mark 17 is circuit board housings.
Shown in Fig. 8 A and Fig. 8 B, circuit board assemblies 12 is assembled with circuit board housing 17, LED illuminating part 13, circuit board 15 and film 16 successively.
Has the LED illuminating part 13 that from behind this display part 10 is thrown light at the back side of display part 10.Promptly, the circuit board 15 that is positioned at display part 10 back sides is made the shape with the one portions cut, and is arranged to face from this notch portion and LED illuminating part 13.
The test section 14 that detects electrostatic capacitance change is positioned at the back side of operating portion 9.Circuit board 15 possesses test section 14, judging part (not shown) and comprises automatic control part (not shown) of microcomputer etc.
The one side of circuit board 15 covers with film 16, and another side covers with circuit board housing 17.Film 16 is adjacent to test section 14.In addition, the light of transmission LED illuminating part 13.
Secondly, mark 20 is slide units.Slide unit 20 is separately positioned on four jiaos of circuit board housing 17 shown in Fig. 8 A.
Mark 21 is recesses of containment circuit board 15.Recess 21 is located on the circuit board housing 17, has the degree of depth of microcomputer that containment circuit board 15 possesses etc.
At this moment, near the terminal part 2a of gathering sill 25, make the size variable between circuit board 15 face side and the glass plate 6a.Promptly, the test section 14 made on terminal part 25a guided slidable parts 20 and then the circuit board 15 of gathering sill 25 is adjacent to or approaching structure with glass plate 6a.In other words, in the moment that circuit board assemblies 12 is inserted in the insertion section 24, with regard to the inlet portion 25b of gathering sill 25, consider the insertion of packing into of circuit board assemblies 12, test section 14 is slided in the position of leaving from glass plate 6a, and terminal part 25a is erected, make to be adjacent to glass plate 6a or approaching at the end position test section 14 of packing into.
In addition, circuit board housing 17 is made horizontal wide oblong-shaped.So, as mentioned above, only be slide unit 20, crooked near the central authorities of circuit board housing 17, worry that the test section 14 on the circuit board 15 leaves from glass plate 6a.
So, in the present embodiment, be provided with protuberance 17b at the upper and lower side of the backrest face central authorities of circuit board housing 17.Thus, the occasion in case cover 18 that circuit board housing 17 is packed into, protuberance 17b plays the effect of the bending of circuit for rectifying plate housing.Thus, the test section 14 on the circuit board 15 can be arranged to be adjacent to or near glass plate 6a.
In addition, as shown in Figure 7, be provided with a plurality of rib 18a at the back side of case cover 18.Promptly, be provided with a plurality of rib 18a in a side that contacts with foam-thermal insulation 7.
Fill the also occasion of frothing foam heat-insulating material 7, to case cover 18 effect blow pressures.This occasion utilizes a plurality of rib 18a can suppress the distortion of the case cover 18 that caused by blow pressure.In addition, rib 18a guiding foam-thermal insulation 7 flows along this rib 18a, so play the effect that does not hinder filling-foam.Have again and since with the mode of surrounding rib 18a equably filled and process heat-insulating material 7 harden, so can make fixedly becoming of case cover 18 reliable.
From the above mentioned, owing to utilize the filling-foam of foam-thermal insulation 7 can suppress case cover 18 distortion and skew, the occasion in case cover 18 that circuit board assemblies 12 is packed into can suppress the position skew of gathering sill 25 and slide unit 29.Promptly, the test section on the circuit board 15 14 can be adjacent to reliably with glass plate 6a or closely be provided with.
Secondly, referring again to Fig. 6 describes the space 26 interior occasions that formed by glass plate 6a and case cover 18 that circuit board assemblies 12 is packed into.
The slide unit 20 of inlet portion 25b side is pushed lightly along gathering sill 25 under the state of the inlet portion 25b that is positioned at gathering sill 25.So the slide unit 20 of terminal part 25a side arrives the terminal part 25a of gathering sill 25, the test section 14 (with reference to Fig. 4) of circuit board assemblies 12 is adjacent to glass plate 6a by film 16 or is approaching.
The slide unit 20 of entrance side 25b side is multiplied by guide part 25c from inlet portion 25b as shown in Figure 6, is located at the fastening portion 23 opposing elastic force of circuit board housing 17 and is crossing limited part 27 fastenings afterwards on limited part 27.Thus, circuit board assemblies 12 is that glass plate 6a is adjacent to or approaching state is fixed with test section 14 by film 16 and panel 6 in front of the door.
Secondly, board side connector 22 is positioned at insertion section 24 sides.As shown in Figure 7, the cable 28 of mains cord etc. is drawn out in the case cover 18 in advance.And, be that cable side-connector 29 is inserted in the board side connector 22 with the front end of cable 28.Thus, cable 28 can be concentrated in the space 26.Mounting cover 11 under this state, finish assembling operation.Have again, in the occasion of checking, taking out circuit board assemblies 12 when repairing, as long as carry out and above-mentioned opposite operation.
Have, cable 28 is drawn from foam-thermal insulation 7 lateral space 26 of door 2 again.To the outlet 30 in space 26 as shown in Figure 6, be located at position near lid 11.Thus, the concentrated operation of cable 28 becomes effective.
In addition, outlet 30 is positioned at the top in space 26 when packing left refrigerating-chamber door 2a into refrigerator main body 1.Thus, can prevent to invade foam-thermal insulation 7 sides from outlet 30 attached to the condensate water in the space 26.
Have again, make at the back side of glass plate 6a and form display part 10, and remove the occasion of the structure of film 16, following problem occurs by directly printing to wait.In the operation of filled and process heat-insulating material 7, be located at the display part 10 of glass plate 6a and case cover 18 because blow pressure produces the position skew about about 1～2mm.Promptly, owing to utilize the gathering sill 25 positioning circuit board components 12 be located on the case cover 18, so produce the position skew being located between LED illuminating part 13 on the circuit board 15 and the display part 10.Thus, it is uneven that illumination takes place on display part 10, do not expect in appearance.In addition, consider the position skew, add the daimonji display part and also do not expect in appearance.
Promptly, pass through by forming circuit board components 12 such as circuit board housing 17, circuit board 15 and films 16, so in the operation of filled and process heat-insulating material 7, even case cover 18 produces the illumination inequality that the positions skew also is not easy to produce display part 10.
In the present embodiment, illustrated to be located at 4 slide units 20 and the relation of being located at the gathering sill 25 on the case cover 18 on the circuit board housing 17, the structure that circuit board assemblies 12 and glass plate 6a are adjacent to.But this is an example that is used to make test section 14 and glass plate 6a to be adjacent to, and is not limited to this structure.In addition, the position that insertion section 24 is set also is not limited to the reveal face of above-mentioned explanation, can also be a bottom surface, top or the back side (foam-thermal insulation side).
Secondly, in Fig. 8 A, circuit board assemblies 12 is made of circuit board housing 17, LED illuminating part 13, circuit board 15, film 16 etc.And, containment circuit board 15 in the recess 21 of circuit board housing 17.Have again, the surperficial 15a of circuit board 15 with the flange part 17a that is located at circuit board housing (circuit board holds parts) 17 be that the mode of same level is held.Be pasted and fixed at the film 16 that has bonding agent under this state on the flange part 17a of the surperficial 15a of circuit board 15 and circuit board housing 17.
Therefore, constitute between test section on the circuit board 15 14 and film 16 and do not have spatial portion or approaching.
Secondly, with reference to Fig. 8 B the structure of LED illuminating part 13 is described.On the opposing face of the test section 14 of circuit board 15, dispose LED13b.The 15b of hole portion is set near LED13b.LED transmittance section 13a is set in the 15b of hole portion.Opposite face configuration film 16 at the 15b of hole portion.
Thus, in the occasion of having lighted LED13b, light inlet is to the root 13c of the LED transmittance section 13a of the opposite face that is configured in LED13b.LED transmittance section 13a transparent resin or third rare injection mouldings such as transparent resin material of polystyrene.Thus, shown in the arrow of Fig. 8 B, in the 13a of LED transmittance section the refraction and carry out printing opacity, the surperficial 13d of LED transmittance section 13a is lighted.Thus, be the structure that illuminates the display text of film 16.
Have again, also shown in Fig. 8 A, need all illuminate accordingly with the display text that is printed on fast refrigeration on the film 16, snap frozen etc.Thus, in the present embodiment, shown in Fig. 8 A, on circuit board 15, be provided with a plurality of hole 15b of portion and LED13b, be provided with a plurality of LED transmittance section 13a accordingly with this a plurality of hole portion.
According to this structure, the thickness that the circuit board housing 17 of circuit board 15 is housed in can making is Min., can fully guarantee the thickness of foam-thermal insulation 7.
And, though not shown, in the occasion of lighting from the indication of automatic control part, illuminate display part 10 from the rear side of film 16, thereby and transmissive glass plate 6a improve light and become and see literal easily.
In other words, the LED illuminating part 13 in the present embodiment is only lighted when test section 14 detects electrostatic capacitance.So in actual user mode, it itself is operating portion 9 that child is difficult to identification glass plate 6a.Thus, can prevent mischief etc.
Have again, wait the literal that is presented on the film 16 can see through glass plate 6a as seen for the user with printing.
Secondly, with reference to Fig. 9, the example of insertion section 24 being located at a bottom surface is described.In Fig. 9, in the bottom surface of left refrigerating-chamber door 2a insertion section 24 is set, cover insertion section 24 with covering 11., consider operability and observability here, near the handle 1a that opens and closes left refrigerating-chamber door 2a, display part 10 is set.Thus, with insertion section 24 as left refrigerating-chamber door 2a bottom surface.
Have, the assembling of the method to set up of display part 10, operating portion 9 (not shown) and the 2a of refrigerating-chamber door left of circuit board assemblies etc. are with previously described the same again.
This occasion, by make cover 11 be positioned at than user's sight line by under the position, thereby can further eliminate showy.
Though not shown in addition, in the low occasion of the whole height of refrigerator main body 1, the mode serviceability on top that display part 10 is configured in refrigerating-chamber door is better.Can also be that the top structure of door is located in insertion section 24 promptly.This occasion, the assemble method of circuit board assemblies is same as described above.
The present invention is owing to having the structure of each embodiment of above-mentioned explanation, so can obtain following effect.
Promptly, the panel in front of the door of refrigerator is the glass component with insulating properties and light transmission.And, as plane operating portion, and be the literal display part that the back side of glass component is provided with printing etc. at the rear of this operating portion with the glass component front.In addition, in the contact of the back side of the glass component relative or the test section that is connected with judging part on the circuit board closely is set, and the literal demonstration of display operation result's display part etc. is set near operating portion with this operating portion.In addition, the literal of this display part shown from the rear by the light emitting diode of being located at circuit board etc. and shine.
When test section detects electrostatic capacitance change, by the judging part on the circuit board and utilize automatic control part that load is moved, the on/off of control LED.
Thus, because panel is insulator and is made of the glass plate of light transmission in front of the door, so the operating portion that contacts with contact electrode as glass front, does not need guidance panel.In addition, the occasion of being made dirty by moisture or grease in glass front is because this glass front is plane, so wiping simply.In addition, can suppress child's mischief.In addition, even the user is with the situation of the hand that is stained with moisture or grease or finger operating of contacts portion and so on, because operating portion is a glass component itself, so can suppress the corrosion and the deterioration of electric product.In addition, because the door surface is the plane, so the wiping cleaning easily.
In addition, the display part that is set up in parallel with operating portion shines from the rear with LED etc., and is mapped on the glass component surface according to the indication of the automatic control part on the circuit board.
Thus, the user need not shutter door just can the surperficial demonstration of enough doors confirm the content that oneself is imported, so can prevent wrong input and unhelpful door switching.
In addition, circuit board possesses: the LED illuminating part that display part is thrown light on; Detect the test section of electrostatic capacitance change; Judging part (not shown) and comprise automatic control part of microcomputer etc.In addition, circuit board covers with film and circuit board housing, is arranged to the test section contact or near film, makes the test section contact or near glass plate by film.
Thus, the position of operating portion and judging part relation is retained as certain, and microcomputer etc. reduced infringement by film and the protection of circuit board housing may.Have again,, do not worry the back side with circuit board shell damage glass component in the occasion of mounting circuit boards housing.
In addition, in circuit board is housed the circuit board housing be contained in the case cover of isolating from foam-thermal insulation, contact with the test section of being located at circuit board surface or approaching film is mounted to that test section contacts with the back side of glass component or approaching.
Thus, the circuit board that can prevent to be assembled in the circuit board housing breaks down because of the intrusion of the foam-thermal insulation that is filled.
In addition, the back of the glass component beyond the display part is provided with colored paint.
Thus, the transparency of display part guaranteed, sticks on the glass protection material of glass back and foam-thermal insulation etc. and can't see from the door front, makes good in appearance structure.
In addition, the circuit board automatic control part etc. that possesses LED that display part is thrown light on, detect test section, the judging part of electrostatic capacitance change and comprise microcomputer.Test section is configured on the circuit board face of a face side LED that configuration is thrown light on to display part on the opposing face of the circuit board that has disposed test section.In addition, around the circuit board that has disposed LED, square hole is set, on the opposite face of this square hole, display part is set.
Thus, the thickness of the circuit board housing of circuit board is housed in can reducing, can fully guarantees the thickness of foam-thermal insulation.
In addition, glass component is the long flat shape of short transverse, and circuit board is that horizontal wide shape and the length direction that is configured to this circuit board intersect with the short transverse of glass component.In addition, the thickness of glass component is 2mm～3.5mm.
Thus, when the filled and process heat-insulating material, when refrigerator uses and during the refrigerator assembling etc., can prevent glass sheet breakage or crackle occur.In addition, the influence of thermal deformation of glass self etc. can be suppressed to Min..In addition, can also reduce manufacturing cost.
Have again, the thickness of glass component is made as the reasons are as follows of 2mm～3.5mm.Promptly, when the filled and process heat-insulating material, when refrigerator uses, during the refrigerator assembling and during the carrying of refrigerator etc., consider that panel is the suffered impact of glass component in front of the door.Specifically, guaranteed that height at 1m above door falls the intensity that the occasion glass component of the copper ball of 1kg does not break.
In addition, in order to ensure better intensity, can also apply hot intensive treatment or chemical enhanced processing to glass component.In addition, in order to reduce himself quality of refrigerator, as long as can guarantee intensity, the scheme that the thickness of glass component is thinner is good.
The occasion of present embodiment, such as previously described, paste protective material at the back side of glass component, thereby fragmentation can not disperse yet even glass component breaks.Have, applied the occasion of intensive treatment, the glass fragmentation diminishes, and can improve security.
In addition, the gauge of glass component, film and protective film is the thickness that can detect the electrostatic capacitance change that the operation by operating portion causes with test section.
In addition, the test section that detects electrostatic capacitance change is set on circuit board, when judgement section judges went out electrostatic capacitance change, the notice mechanism that circuit board possesses was that buzzer sends alert sound.Have again, with regard to alert sound, be accompanied by the control content change and alert sound be provided with scale or the alert sound number of times is changed.
Thus, in the occasion that the user has carried out operation,, utilize sound just can confirm the content of having imported by the scale and the alert sound number of times of alert sound.With the surface plate of door that does not have concavo-convex glass component formation refrigerator, and plane operating portion is set, so can confirm that with sound content is important.
In addition, from the insertion section of being located at door when being assembled into circuit board assemblies in the case cover, utilization is located at the gathering sill of case cover and terminal part and is located at the relation of the slide unit on the circuit board housing, the surface of circuit board assemblies is contacted or approaching with the glass plate back side.
Thus, can not cause damage to the judging part and the glass plate back side, but the containment circuit board assembly.In addition, just can load and unload circuit board assemblies with less power.
In addition, from the side of being located at door, above or the insertion section of bottom surface circuit board is installed in the case cover with loading and unloading freely, and with covering inaccessible insertion section.
Thus, the user is not easy to see the insertion section, can make the design of good appearance.In addition, needn't be from the refrigerator main body separation gate etc., utilize the switching of lid just can finish the service inspection of circuit board assemblies.
In addition, from the edge of being located at door be the side, above or the insertion section of bottom surface circuit board is installed in the case cover with loading and unloading freely, and after circuit board has been installed, the connector that is drawn out to the cable in the case cover is connected with the board side connector.
Thus, the connection of cable, hold operation and become easy.
In addition, the fastening portion integrally formed with resinous circuit board housing has elasticity, utilizes this elasticity, and the fastening of fastening portion is fixed on this circuit board housing in the case cover on the limited part of case cover side.
Thus,, prevent to be installed in the position skew of the circuit board assemblies in the case cover, prevent that test section from can't detect the variation of electrostatic capacitance in the occasion that refrigerator main body is applied impact.
Claims (6)
1. refrigerator is characterized in that possessing:
Be located at the storeroom of refrigerator main body;
Open and close the storeroom door of the front openings of this storeroom;
The panel in front of the door of being located at the front of this storeroom door and having light transmission;
Be located at this operating portion of the front of panel in front of the door;
Contact with the back of the rear of this operating portion and above-mentioned panel in front of the door or near and be provided with and detect the test section of the variation of electrostatic capacitance;
The display part that shows the operating result of aforesaid operations portion;
Shine the lighting mechanism of this display part from the rear;
Control the control part of above-mentioned lighting mechanism based on the detected value of above-mentioned test section;
Be provided with the circuit board of above-mentioned test section and above-mentioned lighting mechanism; And
Be located at the edge part of above-mentioned storeroom door and the foregoing circuit plate is contained in insertion section in this storeroom door.
2. a refrigerator is characterized in that,
Possess: the storeroom of being located at refrigerator main body;
Open and close the storeroom door of the front openings of this storeroom;
Be filled in the foam-thermal insulation in this storeroom door;
Be located at the front of this storeroom door and have insulating properties and the glass component of light transmission with plane;
Be arranged to form to above-mentioned foam-thermal insulation side the case cover of recess from the front of above-mentioned storeroom door;
Be located at the edge part of above-mentioned storeroom door and the insertion section that is communicated with above-mentioned recess;
Be located at the operating portion of the front of above-mentioned glass component with the same level shape;
Have operating result with aforesaid operations portion and be shown in the film of display part of the front of above-mentioned glass plate;
Shine the light emitting diode of the display part of this film towards the front of above-mentioned glass plate from the rear;
Be located at the rear of aforesaid operations portion and detect the test section of the variation of electrostatic capacitance;
Control the control part of above-mentioned lighting mechanism based on the detected value of this test section;
Be provided with the circuit board of above-mentioned light emitting diode and above-mentioned test section; And
Hold this circuit board also covers the front with above-mentioned film circuit board housing,
Foregoing circuit plate housing is inserted in the above-mentioned case cover from above-mentioned insertion section, above-mentioned film contact with the back of above-mentioned glass component or near and be provided with, and above-mentioned test section contacts with the back of above-mentioned film or approaching and be provided with.
3. refrigerator according to claim 2 is characterized in that,
Have the gathering sill of being located at above-mentioned case cover and be located at the slide unit of foregoing circuit plate housing,
Foregoing circuit plate housing inserts from above-mentioned insertion section, this circuit board housing is directed along above-mentioned gathering sill at above-mentioned slide unit and is inserted under the state in the above-mentioned case cover, above-mentioned film contact with the back of above-mentioned glass component or near and be provided with, and above-mentioned test section contacts with the back of above-mentioned film or approaching and be provided with.
4. refrigerator according to claim 1 and 2 is characterized in that,
Have and be located at the fastening portion on the foregoing circuit plate housing and be located at limited part on the above-mentioned case cover.
Be inserted into occasion in the above-mentioned case cover at foregoing circuit plate housing, above-mentioned fastening portion opposing elastic force after crossing above-mentioned limited part fastening on this limited part.
5. refrigerator according to claim 1 and 2 is characterized in that,
Above-mentioned insertion section is used with the edge part of above-mentioned storeroom door and is become plane lid to cover.
6. refrigerator according to claim 1 and 2 is characterized in that,
Above-mentioned insertion section is located on the side, bottom surface of above-mentioned storeroom door or top arbitrary, and the connector of foregoing circuit plate is connected with cable side-connector in being drawn out to above-mentioned case cover.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-186972 | 2009-08-12 | ||
| JP2009186972A JP4948578B2 (en) | 2009-08-12 | 2009-08-12 | refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101995140A true CN101995140A (en) | 2011-03-30 |
| CN101995140B CN101995140B (en) | 2013-07-10 |
Family
ID=43766669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101155143A Active CN101995140B (en) | 2009-08-12 | 2010-02-11 | Refrigerator |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4948578B2 (en) |
| KR (5) | KR101136496B1 (en) |
| CN (1) | CN101995140B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20120041715A (en) | 2012-05-02 |
| KR101238770B1 (en) | 2013-03-06 |
| KR101193046B1 (en) | 2012-10-22 |
| KR101166447B1 (en) | 2012-07-19 |
| CN101995140B (en) | 2013-07-10 |
| JP2011038712A (en) | 2011-02-24 |
| KR101330106B1 (en) | 2013-11-18 |
| KR20120039592A (en) | 2012-04-25 |
| JP4948578B2 (en) | 2012-06-06 |
| KR101136496B1 (en) | 2012-04-19 |
| KR20120039591A (en) | 2012-04-25 |
| KR20110016809A (en) | 2011-02-18 |
| KR20110117035A (en) | 2011-10-26 |
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Address after: Tokyo, Japan, Japan Patentee after: Hitachi Global Living Program Co., Ltd. Address before: Tokyo, Japan, Japan Patentee before: Hitachi Household Electric Appliance Co. |