CN102878745A - Refrigerator - Google Patents

Refrigerator Download PDF

Info

Publication number
CN102878745A
CN102878745A CN2012101756888A CN201210175688A CN102878745A CN 102878745 A CN102878745 A CN 102878745A CN 2012101756888 A CN2012101756888 A CN 2012101756888A CN 201210175688 A CN201210175688 A CN 201210175688A CN 102878745 A CN102878745 A CN 102878745A
Authority
CN
China
Prior art keywords
mentioned
lighting device
refrigerator
refrigerating chamber
light
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
Application number
CN2012101756888A
Other languages
Chinese (zh)
Other versions
CN102878745B (en
Inventor
前田刚
大和康成
铃木和贵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of CN102878745A publication Critical patent/CN102878745A/en
Application granted granted Critical
Publication of CN102878745B publication Critical patent/CN102878745B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention provides a refrigerator which can extract the light emitted out of a light-emitting diode effectively to thereby utilize the light-emitting diode furthest and then radiate light to the opening side of a refrigerating chamber. The refrigerator comprises a lighting device (9) which is configured at the downward protruded position of an inner side wall forming the top surface (13) of a storage room (2) which is equipped with an opening part at the front. The lighting device (9) comprises a substrate (10a) equipped with a plurality of light-emitting diodes (10b) along the width directions (the left and right directions) watching from the opening part side of the storage room (2), and a lampshade covering the installing sides of the light-emitting diodes (10b) of the substrate (10a). Watching from the opening part side of the refrigerating chamber, the back part of the substrate (10a) of the lighting device (9) is lower than the front part, so that the optical axes of the light-emitting diodes (10b) tilt toward the above opening part side.

Description

Refrigerator
Technical field
The present invention relates to adopt as the illumination in for example refrigerating chamber of storeroom the refrigerator of light emitting diode.
Background technology
Before, as in the refrigerating chamber that is located at refrigerator, refrigerating chamber the door on the door box (door pocket) lighting device, main adopt incandescent lamp bulb, and in recent years, proposed to adopt the motion of the light emitting diode that aspect caloric value, power consumption, has superiority (below be called " LED ").
But LED compares with incandescent lamp bulb, has that the luminous site is little, directive property is strong and the narrow shortcoming of range of exposures.For with LED without omitting the large refrigerating chamber of ground irradiation, must adopt the LED that brightness ratio is large, price is high, guarantee with the equal refrigerating chamber of incandescent lamp bulb in the situation of illumination under, the tendency that has manufacturing cost to increase.In addition, for the shortcoming that remedies LED, effectively shine large refrigerating chamber as far as possible, must make the quantity that place, LED are set of lighting device, the optimizations such as direction of illumination of LED.
Before, as the lighting device that effectively shines refrigerating chamber as far as possible, for example there is the end face at refrigerating chamber recess to be set and the device that the substrate of a plurality of LED is installed and consists of is set in this recess.With the direction of illumination of the LED of the lighting device rear side towards refrigerating chamber, mainly shine in the refrigerating chamber (for example referring to patent documentation 1).
Patent documentation 1: TOHKEMY 2008-39355 communique (the 4th~5 page, Fig. 5).
Summary of the invention
In the technology of above-mentioned patent documentation 1 record, the light that the LED in the recess that is located at end face penetrates is owing to the place ahead irradiation of the food in refrigerating chamber, so the user of refrigerating chamber recognizes food easily.But, because LED is accommodated in the recess of end face, so, can run into the wall on the inclined-plane that forms recess from the light that LED sends, the light of this part can not be got outside and wasting problem thereby exist.In addition owing to be towards the rear side of refrigerating chamber irradiation light, so, exist light be difficult to refrigerating chamber the peristome side, namely be installed in the problem of the direction irradiation of the door box on the refrigerating-chamber door.
The present invention makes in order to address the above problem, and its 1st purpose is, can effectively take out the light that sends from light emitting diode and maximally utilises the performance of light emitting diode, obtains also light shining the refrigerator of the peristome side of refrigerating chamber.
The 2nd purpose is, on the basis of the 1st purpose, obtains when running is unusual, can be with the refrigerator of the demonstration of the lighting device in refrigerating chamber abnormal information.
The 3rd purpose is on the basis of the 1st and the 2nd purpose, to obtain regulating arbitrarily the refrigerator of the illumination in the refrigerating chamber.
In order to realize at least the 1st purpose, refrigerator of the present invention has lighting device, and this lighting device is configured in the position that leans out towards the below from the madial wall that consists of the storeroom end face, and there is peristome the front of this storeroom; This lighting device from the peristome side of storeroom, has along left and right directions and the substrate of a plurality of light emitting diodes is installed and covers the lampshade of this substrate; The optical axis of above-mentioned light emitting diode rolls tiltedly with respect to the peristome of vertical direction towards storeroom.
According to the present invention, have in front on the madial wall of end face of storeroom of peristome, lighting device is being set, and this lighting device is from the peristome side, have along a plurality of light emitting diodes of left and right directions configuration, so, compare with the lighting device in the recess that is located at end face, can effectively take out the light that sends from light emitting diode, as storeroom illumination usefulness, can maximally utilise the performance of light emitting diode.
In addition, because the optical axis of a plurality of light emitting diodes is oblique towards the peristome inclination of storeroom with respect to vertical direction, so, can make light also shine the peristome side of storeroom.
Description of drawings
Fig. 1 is the profile that the side of the refrigerator of embodiment 1 is dissectd expression.
Fig. 2 is the plane of the position relationship of the front elevation of refrigerating chamber shown in Figure 1 and the expression lighting device when seeing refrigerating chamber from the below and rack.
Fig. 3 is the side view of the installation example of expression lighting device shown in Figure 1.
Fig. 4 is the amplification profile that the lighting device of Fig. 3 is amplified expression.
Fig. 5 is the directional property figure of the light emitting diode in the embodiment 1.
Fig. 6 be the lighting device of expression in the embodiment 1 range of exposures side view and pull down the top of refrigerator and the plane of the range of exposures of the lighting device that represents.
Fig. 7 is side view and the plane that the side view of the range of exposures of lighting device when vertical direction of presentation graphs 6 and plane and expression are located at the range of exposures of the lighting device in the recess of madial wall.
Fig. 8 be the lighting device of expression in the embodiment 2 range of exposures side view and pull down the top of refrigerator and the plane of the range of exposures of the lighting device that represents.
Fig. 9 is the amplification profile that the lighting device of Fig. 8 is amplified the concrete example of the amplification profile of expression and the lampshade that expression has lens arrangement section.
Figure 10 is that expression is with the lighting device in the embodiment 1,2 and the schematic circuit diagram of comparing before.
Figure 11 is the front elevation of guidance panel of refrigerator that represents the display case of abnormal information before.
Figure 12 is the oscillogram of the bright light pattern of the display case that represents abnormal information of the LED with lighting device in the embodiment 3.
Figure 13 be illustrated in the embodiment 4, the line chart of the relation of the ratio of LED lighting time and brightness and expression lighting time be with respect to the oscillogram of the ratio of the unit interval of LED flicker.
Figure 14 is the oscillogram of the bright light pattern of the LED with lighting device of expression in the embodiment 4 display case that represents abnormal information.
The explanation of Reference numeral
1 ... refrigerator, 2 ... refrigerating chamber, 3 ... switching chamber, 4 ... vegetable compartment, 5 ... refrigerating chamber, 6 ... clamshell doors, 7 ... drawer type door, 8 ... rack, 9 ... lighting device, 10a ... substrate, 10b ... light emitting diode (LED), 10c ... lampshade, 11 ... the door box, 12 ... the optical axis of LED, 13 ... the end face of refrigerating chamber, 13a ... madial wall, 14 ... recess, 16 ... lens arrangement section, 21 ... compressor, 22 ... cooler, 23 ... cooling fan, 31 ... relay, 32 ... transistor, 33 ... incandescent lamp bulb, 34 ... guidance panel, 35 ... liquid crystal display part, 36 ... switch, 37a, 37b ... the LED that abnormal show is used, 40,41 ... control device.
The specific embodiment
Embodiment 1
Fig. 1 is the profile that the side of the refrigerator of embodiment 1 is dissectd expression.Fig. 2 is the plane of the position relationship of the front elevation of refrigerating chamber shown in Figure 1 and the expression lighting device when seeing refrigerating chamber from the below and rack.Fig. 3 is the side view of the installation example of expression lighting device shown in Figure 1.Fig. 4 is the amplification profile that the lighting device of Fig. 3 is amplified expression.Fig. 5 is the directional property figure of the light emitting diode in the embodiment 1.
The refrigerator 1 of embodiment 1 as shown in Figure 1, has: the refrigerating chamber 2 in the superiors as storeroom; The switching chamber 3 of its lower floor and with horizontal side by side the ice-making compartment (not shown) of switching chamber 3; At undermost refrigerating chamber 5; Thereon the layer vegetable compartment 4.In addition, each chamber 2,3,4 of refrigerator 1,5 configuration are not limited thereto.Peristome at refrigerating chamber 2 is installed with for example clamshell doors 6 of radial type, at each peristome of switching chamber 3 and ice-making compartment, vegetable compartment 4, refrigerating chamber 5 for example door 7 of drawer type is installed respectively.Take in the door box 11 that food is used being provided with by the inner face of refrigerating chamber 2 one sides of clamshell doors 6.In addition, the door of refrigerating chamber 2 is clamshell doors 6 of radial type, but also can be the door of single open-door formula.
In order to improve the taking in property of food, above-mentioned refrigerating chamber 2 by the longitudinal direction of refrigerating chamber 2 removably a plurality of racks 8 demarcate.Rack 8 for example forms tabular by transparent synthetic resin.Madial wall 13a at the end face 13 that consists of refrigerating chamber 2 is installed with lighting device 9.This lighting device 9 is made of substrate 10a, a plurality of light emitting diodes (below be called " the LED ") 10b that is installed on this substrate 10a and lampshade 10c, and lampshade 10c and madial wall 13a encirclement also are covered with the installation side of the LED10b of substrate 10a.
In the space of each chamber 2,3,4 of refrigerator 1,5 inboard, the back side, be provided with cooling fan 23, the compressor 21 that consists of refrigerating circulatory device, condenser, capillary, cooler 22 etc.The cold-producing medium that circulates in refrigerating circulatory device becomes the gas refrigerant of HTHP under the effect of compressor 21, become the liquid refrigerant of high pressure under the effect of condenser.The condensed liquid refrigerant of the device that is condensed is reduced pressure by capillary, and at cooler 22 puffings, compressor 21 is returned in heat absorption from ambient air and become the gas refrigerant of low pressure.On the other hand, carry out the cold air after the heat exchange by cooler 22, sent into each chamber 2,3,4,5 by cooling fan 23.The running control of compressor 21 and the control of cooling fan 23 are undertaken by the control device of refrigerator 1.
The substrate 10a of above-mentioned lighting device 9, shown in Fig. 2 (a), from the peristome side of refrigerating chamber 2, form the rectangle of extending along the width (left and right directions) of refrigerating chamber 2, being roughly along its length direction, linearity ground equally spaced is installed with for example 7 LED10b.Lighting device 9, shown in Fig. 2 (b), be installed among the madial wall 13a of the end face 13 that consists of refrigerating chamber 2, with the toe lateral madial wall 13a in opposite directions of rack 8 on.In addition, the substrate 10a of lighting device 9, from the peristome side of refrigerating chamber 2, its rear portion is lower than anterior.For example, as shown in Figure 3, take the front portion of substrate 10a as basic point, its rear portion becomes predetermined angular β ground to reduce downwards with respect to the axis parallel with the upper side of refrigerator 1.Like this, the optical axis 12 of each LED10b rolls tiltedly towards the peristome of refrigerating chamber 2.Although the angle of inclination of the substrate 10a of lighting device 9 is made as angle beta, this angle beta can be according to the size of refrigerating chamber 2 and is different.
Above-mentioned substrate 10a, for example as shown in Figure 4, substrate maintaining part 10d, the 10e by lampshade 10c keeping in the mode that is inclined to predetermined angular β.Lampshade 10c is for example made by transparent synthetic resin, and section shape forms roughly concavity, to surround and to be covered with aforesaid substrate 10a and each LED10b with madial wall 13a. Substrate maintaining part 10d, 10e are for example integrally formed with lampshade 10c, in the along its length outstanding setting at a plurality of positions of inner face of lampshade 10c.Be provided with toward each other projection on substrate maintaining part 10d, 10e, these projections are so that the state of substrate 10a predetermined oblique angle β keeps substrate 10a.
As a rule the directive property of light is strong to be installed in each LED10b on the substrate 10a, for example, has directional property as shown in Figure 5.If make the direction of illumination of each LED10b become vertical direction, then the light-emitting area from each LED10b is the strongest to the light output of the optical axis 12 of vertical direction, more departs from optical axis 12, and light output is lower.Here, light output is output as scope more than 50% with respect to optical axis 12, as effective range of exposures α of LED10b.
Below, for the range of exposures α of the lighting device 9 in the embodiment 1, the optical axis of each LED10b is compared to be illustrated towards the lighting device 9 of vertical direction and the lighting device 9 that is located in the recess 14 of madial wall 13a.
Fig. 6 be the lighting device of expression in the embodiment 1 range of exposures side view and pull down the top of refrigerator and the plane of the range of exposures of the lighting device that represents.Fig. 7 is side view and the plane that the side view of the range of exposures of lighting device when vertical direction of presentation graphs 6 and plane and expression are located at the range of exposures of the lighting device in the recess of madial wall.Fig. 7 (a) is the side view of the range of exposures of lighting device when vertical direction.Fig. 7 (b) is that expression is from top 7(a with the aid of pictures) shown in lighting device the time the plane of range of exposures of lighting device.Fig. 7 (c) is the side view of the range of exposures of the lighting device when being located at lighting device in the recess.Fig. 7 (d) is that expression is from top 7(c with the aid of pictures) shown in lighting device the time the plane of range of exposures of lighting device.
If more than being opened to the clamshell doors 6 of refrigerating chamber 2 to a certain degree, then 7 of lighting device 9 LED10b are simultaneously luminous, and this light dotted arrow as shown in Figure 4 sees through lampshade 10c like that, illuminates in the refrigerating chamber 2.The fluorescent lifetime of each LED10b is, when the door switch that detects the peristome that is located at refrigerating chamber 2 when above-mentioned control device had been connected, under the control of control device, each LED10b was luminous.
In embodiment 1, because the optical axis 12 of each LED10b rolls tiltedly towards the peristome of refrigerating chamber 2, so, the light that sends from each LED10b, the triangle of the inclination centered by the optical axis 12 that shown in Fig. 6 (a), becomes to tilt (effectively range of exposures α), this range of exposures is the brightest, will illuminate in the refrigerating chamber 2.When seeing each LED10b luminous from the top, shown in Fig. 6 (b), be trapezoidal range of exposures.That is, from the light of each LED10b irradiation, centered by the optical axis that tilts, a part sees through until undermost rack 8 successively from the rack 8 of the superiors, and another part is diffused into the peristome side of refrigerating chamber 2 and illuminates around the box 11.
On the other hand, become in the lighting device 9 of vertical direction at the optical axis that makes each LED10b, from the light of each LED10b irradiation, shown in Fig. 7 (a), equably diffusion is seen Fig. 7 (b) but shine less than door box 11(centered by optical axis).In addition, in the lighting device 9 in the recess 14 that is located at madial wall 13a, shown in Fig. 7 (c), run into the inclined-plane that forms recess 14 from the part of the light of each LED10b irradiation, the light (oblique line part) that becomes this part directly is not fetched to the state in the refrigerating chamber 2.In addition, because each LED10b is towards the rear side of refrigerating chamber 2, so, do not arrive (seeing Fig. 7 (d)) around the box 11 from the light of each LED10b irradiation.
As mentioned above, in embodiment 1, because lighting device 9 is located on the madial wall 13a that consists of end face 13, so, compare with the lighting device 9 that the recess 14 on being located at madial wall 13a is interior, can effectively take out the light that sends from each LED10b.Therefore, can maximally utilise and to make illumination be mapped to the performance of the such LED10b of undermost rack 8, can make the brightness in the refrigerating chamber 2 roughly even.
In addition, owing to roll oblique mode with the optical axis 12 of each LED10b towards the peristome of refrigerating chamber 2 lighting device 9 is installed on the madial wall 13a, so, compare with lighting device 9 illustrated in fig. 7, can shine around the box 11, can improve the identification in the refrigerating chamber 2.
In addition, in embodiment 1, illustrated lighting device 9 has been located on the madial wall 13a, but, during food storage space in this lighting device 9 has affected refrigerating chamber 2, hope each LED10b is set to highly low Plane Installation formula or lighting device 9 is arranged on directly over the front portion of rack 8 or the madial wall 13a of more forward side first-class, and do not affect food storage space in the refrigerating chamber 2 as far as possible.At this moment, change the angle beta of substrate 10a according to the setting position of lighting device 9.
In addition, in embodiment 1, be the rear portion of substrate 10a to be reduced and the optical axis that makes each LED10b rolls tiltedly towards the peristome of refrigerating chamber 2 downwards than the front portion.But, for example also can pinch hand be set in the either party side at lampshade 10c two ends, roll oblique position take this substrate 10a towards peristome with this pinch hand and change the angle of substrate 10a until the rear side of refrigerating chamber 2 as basic point.At this moment, for example, the axle that mutually extends in the opposite direction is set at the length direction two ends of substrate 10a, makes each axle run through rotationally the side at the two ends of lampshade 10c, can change according to the operation of pinch hand the section of mechanism of the angle of substrate 10a an axle setting.In addition, stop when peristome rolls oblique predetermined angular β in order to make substrate 10a, in the front and back of the inner face of lampshade 10c stop part etc. is set.Like this, the rear side that just can shine brightly refrigerating chamber 2 by the operation of pinch hand, so, can confirm to be accommodated in refrigerating chamber 2 inboards little food, when cleaning refrigerating chamber 2, can confirm the dirt degree.
Embodiment 2
In embodiment 1, be that lighting device 9 is rolled around the door box 11 that tiltedly makes light arrive refrigerating chamber 2 towards the peristome of refrigerating chamber 2.And in embodiment 2, lighting device 9 adopts the lampshade with lens arrangement section, so that the light ratio embodiment 1 of each LED10b further shines the rear side of refrigerating chamber 2.
Fig. 8 be the lighting device of expression in the embodiment 2 range of exposures side view and pull down the top of refrigerator and the plane of the range of exposures of the lighting device that represents.Fig. 9 is the amplification profile that the lighting device of Fig. 8 is amplified the concrete example of the amplification profile of expression and the lampshade that expression has lens arrangement section.In addition, Fig. 9 (a) expression is from the travel condition of the light of each LED of lampshade radiation with lens arrangement section.Fig. 9 (b), (c) expression are arranged at the shape example of the lens arrangement section of lampshade.
Lighting device 9 in the embodiment 2, with embodiment 1 similarly, have from the peristome side of refrigerating chamber 2 see the rectangular substrate 10a that extends along the width (left and right directions) of refrigerating chamber 2, for example 7 LED10b of being that linearity ground roughly equally spaced is installed with at the length direction of substrate 10a and surround the also lampshade 10c of covered substrate 10a and each LED10b with madial wall 13a.The substrate 10a of lighting device 9, shown in Fig. 8 (a), from the peristome side of refrigerating chamber 2, its rear portion reduces predetermined angular β downwards than the front portion.This lighting device 9, shown in Fig. 8 (b), be installed among the madial wall 13a of refrigerating chamber 2, with the toe lateral madial wall 13a in opposite directions of rack 8 on.
Lampshade 10c, with embodiment 1 similarly, made by lucite, have integrally formed lens arrangement section 16 with each LED10b position in opposite directions.In addition, lampshade 10c has substrate maintaining part 10d, and this substrate maintaining part 10d keeps being installed with the substrate 10a of LED10b.When lampshade 10c does not have lens arrangement section 16, as implement as described in the mode 1, cause craspedodrome (dotted arrow) from the wide of each LED10b, and when lampshade 10c had lens arrangement section 16, the light from each LED10b reflected like that shown in the solid arrow among Fig. 9 (a).Lens arrangement section 16 arranges in the mode of not running into it among the light (dotted arrow) of each LED10b irradiation, towards the light of the peristome side of refrigerating chamber 2, and so that except remaining anaclasis (solid arrow) towards the light of peristome side, be shaped towards the mode of the rear side of refrigerating chamber 2.As lens arrangement section 16, for example use the structure (seeing Fig. 9 (b)) that this part of lampshade 10c is thickeied or should partially-formedly be jagged structure (seeing Fig. 9 (c)).
In order to make lens arrangement section 16 produce the refraction action of light, as previously mentioned, the position relationship of each LED10b and lens arrangement section 16 is very important.In the present embodiment, with embodiment 1 similarly, be provided with substrate maintaining part 10d, 10e for the rectangular substrate 10a that keeps being installed with each LED10b, substrate 10a is installed on the lampshade 10c, so, can consist of lens arrangement section 16 lighting device 9 few with the dislocation of each LED10b.
If make each LED10b of the lighting device 9 on the madial wall 13a that is located at refrigerating chamber 2 luminous by opening clamshell doors 6, the light of then not running into lens arrangement section 16 directly sees through lampshade 10c, illuminates (see figure 8) around the box 11 to the peristome side of refrigerating chamber 2.On the other hand, run into the light of lens arrangement section 16, shown in Fig. 9 (a), illuminate rack 8 in the refrigerating chamber 2 and the rear side of refrigerating chamber 2 to the refraction of the rear side of refrigerating chamber 2.
In embodiment 2, because lighting device 9 is located on the madial wall 13a, so, compare with the lighting device 9 in the recess 14 that is located at madial wall 13a, can effectively take out the light of each LED10b.
In addition owing to adopted the lampshade 10c with lens arrangement section 16 at lighting device 9, so, can be effectively illuminating on a large scale around from the rear side of refrigerating chamber 2 to the door box 11 of peristome side.Therefore, compare with embodiment 1, can utilize to a greater extent the performance of LED10b, can make the brightness in the refrigerating chamber 2 roughly even.
In addition, in embodiment 2, be the rear portion of substrate 10a to be reduced and the optical axis that makes each LED10b rolls tiltedly towards the peristome of refrigerating chamber 2 downwards than the front portion.But, for example also can pinch hand be set in the either party side at the two ends of lampshade 10c, roll oblique position take this substrate 10a towards peristome with this pinch hand and change the angle of substrate 10a until the rear side of refrigerating chamber 2 as basic point.At this moment, for example, the axle that mutually extends in the opposite direction is set at the length direction two ends of substrate 10a, makes each axle run through rotationally the side at the two ends of lampshade 10c, can change according to the operation of pinch hand the section of mechanism of the angle of substrate 10a an axle setting.In addition, stop when peristome rolls oblique predetermined angular β in order to make substrate 10a, in the front and back of the inner face of lampshade 10c stop part etc. is set.Like this, the rear side that just can shine brightly refrigerating chamber 2 by the operation of pinch hand, so, can confirm to be accommodated in refrigerating chamber 2 inboards little food, when cleaning refrigerating chamber 2, can confirm the dirt degree.
In embodiment 1,2, the lighting device 9 that 7 LED10b have been installed at substrate 10a has been described, still, the number of LED10b is not limited thereto, if then can be individual arbitrarily more than 3.
Embodiment 3
In embodiment 3, aforementioned embodiments 1,2 lighting device 9 are used as indication mechanism.In addition, explanation lighting device 9 as indication mechanism before, the circuit formation of lighting device 9 is described with reference to Figure 10 first.
Figure 10 is that expression is with the lighting device in the embodiment 1,2 and the schematic circuit diagram of comparing before.
In with the refrigerator of incandescent lamp bulb 33 as light source, if open the door of refrigerating chamber, the door switch (not shown) that then is located at the peristome of refrigerating chamber is connected, by control device 40 transistor 32 is connected, by the ON Action of transistor 32, the contact of relay 31 is connected, and makes incandescent lamp bulb 33 bright lights.On the other hand, in embodiment 1,2, if when by the clamshell doors 6 of opening refrigerating chamber 2 the door switch (not shown) being connected, by the control of control device 41 transistor 32 is connected, by the ON Action of transistor 32, each LED10b is luminous.Each LED10b that adopts in the embodiment 1,2, because voltage/current is more much smaller than before, so, switch the bright light of each LED10b/circuit component of the usefulness of turning off the light and also can adopt the part of less expensive and long service life.
When adopting incandescent lamp bulb 33, being switched on or switched off of the mechanical contacts by relay 31 grades switched bright light/turn off the light.And in embodiment 1,2, the bright light of each LED10b/turn off the light can be by relay 31 grade and is only carried out with the semiconductor of transistor 32 grades.Relay 31 is owing to adopt mechanical contacts, and the number of times of its break-make is restricted, and transistor 32 almost without limits.Therefore, not only bright light/turn off the light and is carried out with the short period flickering display of bright light/turn off the light repeatedly easily easily.
Below, illustrate that this lighting device 9 is located on the madial wall 13a of the end face 13 that consists of refrigerating chamber 2 the situation of lighting device 9 as the indication mechanism use of the abnormal information of display refrigerator 1.
Figure 11 is the front elevation of guidance panel of refrigerator that represents the display case of abnormal information before.Figure 12 is the oscillogram of the bright light pattern of the display case that represents abnormal information of the LED with lighting device in the embodiment 3.
In the refrigerator of embodiment 3, make the control device 41 of each LED10b bright light of lighting device 9/turn off the light along with the switching of clamshell doors 6, be provided with the function according to each LED10b flicker that unusually makes lighting device 9 of refrigerator 1.For example, control device 41 has the function of the operating condition of the refrigerating circulatory device described in the diagnosis embodiment 1, when clamshell doors 6 is opened, if operating condition has unusually, then according to should be unusual, makes each LED10b flicker of lighting device 9.In addition, when clamshell doors 6 has been passed through the scheduled time when still opening, control device 41 makes each LED10b flicker of lighting device 9.
As the diagnosis object of operating condition, such as the motor that compressor 21 is arranged, cooling fan 23, detect the temperature sensor of refrigerant temperature etc.Whether the motor of compressor 21 is to judge according to the current value that flows through this motor unusually.Whether cooling fan 23 is judged according to rotating speed unusually.In addition, to temperature sensor, judge according to detected temperatures.In addition, the diagnosis object of operating condition is not limited to aforementioned device.
In refrigerator before, shown in Figure 11 (a), liquid crystal display part 35 on the guidance panel 34 that is arranged on the refrigerator doors shows unusual number (E34), perhaps shown in Figure 11 (b), come display case such as temperature sensor correctly not to detect the abnormal information of temperature etc. with the flicker number of times of each LED37a, the 37b that are located at the unusual usefulness of demonstration on the guidance panel 34.Be provided with various switches 36 for the design temperature that switches refrigerating chamber 2, refrigerating chamber 5 etc. at these guidance panels 34.
On the other hand, in embodiment 3, when showing for example demonstration " E34 " of the unusual number of conduct with each LED10b, as shown in figure 12, control device 41 shows first " 3 " of tens with the flicker of each LED10b of lighting device 9, then, with time chien shih each LED10b bright light longer than bright light and the time t that turns off the light, then, show with the flicker of each LED10b and " 4 " of units repeatedly carry out this action.The demonstration of the abnormal information of carrying out with the flicker of this each LED10b is in the clamshell doors 6 of having opened refrigerating chamber 2.
In addition, when the guidance panel 34 on being located at this refrigerator 1 has liquid crystal display part 35, show same unusual number.In addition, when this guidance panel 34 has each LED37a, the 37b that abnormal show uses, use the bright light pattern flicker identical with each LED10b of lighting device 9.
In addition, control device 41 opening each LED10b that makes lighting device 9 because of the clamshell doors 6 of refrigerating chamber 2 when luminous, is still being opened if clamshell doors 6 has been passed through the scheduled time, then makes each LED10b flicker, reports this situation.Passed through the state that the scheduled time still opening as clamshell doors 6, following situation is arranged: the user is in order to take in food etc. and deliberately opening; Although want to close clamshell doors 6, door is still being opened slightly; Between clamshell doors 6 and refrigerating chamber 2, clip foreign matter and do not close fully.
As mentioned above, according to embodiment 3, have in the situation that clamshell doors 6 is being opened when unusual at refrigerator 1, according to this abnormal information, make each LED10b flicker of the lighting device 9 in the refrigerating chamber 2.Therefore, the user of subtend refrigerator 1 reports that the requirement degree of abnormal information is higher, and like that only shows that LED37a, the 37b of usefulness report and compares with being contained in liquid crystal display part 35, abnormal information on the guidance panel 34 before, and the cognition degree of abnormality is improved.
In addition, when the clamshell doors 6 of refrigerating chamber 2 is keeping unlatching, make each LED10b flicker of the lighting device 9 in the refrigerating chamber 2, so, when clamshell doors 6 is not closed with opening slightly or when clamping foreign matter clamshell doors 6 is not closed fully, this flickering display is effectively, and user's cognition degree improves.
Embodiment 4
In embodiment 3, be to make repeatedly each LED10b bright light of lighting device 9/turn off the light to carry out flickering display with the short period.And in embodiment 4, be to make the luminous quantity of each LED10b increase and decrease to show abnormality etc.
Figure 13 be illustrated in the embodiment 4, the line chart of the relation of the ratio of LED lighting time and brightness and expression lighting time be with respect to the oscillogram of the ratio of the unit interval of LED flicker.Figure 14 is the oscillogram of the bright light pattern of the LED with lighting device of expression in the embodiment 4 display case that represents abnormal information.
As implement described in the mode 3, available transistor 32 carries out the switching of the bright light of each LED10b/turn off the light, and also the available shorter cycle is carried out the switching of bright light/turn off the light.For example, repeatedly carry out bright light/when turning off the light, because of the reason of illusion, seem not think to be to turn off the light with the high-frequency of number kHz, and feel it is that brightness reduces.The bright degree of each LED10b shown in Figure 13 (b), is directly proportional with respect to the ratio of unit interval (below be called " dutycycle ") with lighting time, and the relation of dutycycle and brightness is shown in Figure 13 (a).
If gradually increase or reduce this dutycycle, then can obtain the visual effect that brightness changes bit by bit.In embodiment 3, be that the flickering display with each LED10b represents abnormal information, and in embodiment 4, as previously mentioned, be that the adjusting by dutycycle shows abnormal information.When making each LED10b flicker, because the variation of brightness is violent, so the user of refrigerator 1 sometimes may be frightened.But, when " 3 " of the tens in display case such as unusual number " 34 ", as shown in figure 14, not that each LED10b is turned off the light fully, but the luminous quantity when making bright light with 50ms reduces by 5%, then, the luminous quantity that the luminous quantity of each LED10b is increased with bright light the time with 50ms is identical, with its 3 times repeatedly.If increase and decrease to make the bright light patterns of change with such luminous quantity, then can not can make the user report abnormal information frightenedly.
Here, thus the adjusting that has exemplified by dutycycle comes brightness adjusting to show the example of abnormal information.But, come this method of brightness adjusting also can be used for selecting according to user's hobby the function of the brightness in the refrigerating chamber 2 by the adjusting of dutycycle.
For example, be provided for regulating the dimmer switch (not shown) of the luminous quantity of lighting device 9 at guidance panel shown in Figure 11 34, the user of refrigerator 1 operates this dimmer switch, can at random regulate the luminous quantity of each LED10b.Regulate based on this, the luminous quantity of each LED10b is controlled by control device.When refrigerator 1 is used in bright place around, do not need too bright in the refrigerating chamber 2, so, reducing the degree of luminous quantity uses, and 2 medium at the arrangement refrigerator, when needing higher brightness, the degree of luminous quantity can be improved, by carrying out such operation etc., the effect of power consumption can be more reduced.

Claims (9)

1. a refrigerator is characterized in that having lighting device, and this lighting device is configured in than the madial wall of the end face that the consists of storeroom position outstanding towards the below, and this storeroom has peristome in front; This lighting device has peristome side from this storeroom, the substrate of a plurality of light emitting diodes is installed and covers the lampshade of this substrate along left and right directions; The optical axis of above-mentioned light emitting diode rolls tiltedly with respect to the peristome of vertical direction towards above-mentioned storeroom.
2. refrigerator as claimed in claim 1 is characterized in that, from above-mentioned peristome side, the rear portion of aforesaid substrate reduces downwards than the front portion, so that the optical axis of above-mentioned light emitting diode rolls tiltedly towards above-mentioned peristome.
3. refrigerator as claimed in claim 2 is characterized in that, aforesaid substrate is arranged at above-mentioned lighting device to roll oblique state towards above-mentioned peristome as the mode that basic point, angle can change to the rear side of storeroom.
4. such as each described refrigerator in the claims 1 to 3, it is characterized in that having the rack that is divided into a plurality of parts for the accommodation space with above-mentioned storeroom; Above-mentioned lighting device be arranged in the above-mentioned madial wall, with the toe lateral madial wall in opposite directions of above-mentioned rack on.
5. such as each described refrigerator in the claims 1 to 3, it is characterized in that above-mentioned lampshade has the lead lens arrangement section of rear side of above-mentioned storeroom of the part of the light that sends from above-mentioned light emitting diode.
6. such as each described refrigerator in the claims 1 to 3, it is characterized in that having dimmer switch and control device, this control device is regulated the luminous quantity of above-mentioned light emitting diode based on the operation of above-mentioned dimmer switch.
7. refrigerator as claimed in claim 6 is characterized in that, above-mentioned control device has passed through the scheduled time when still opening at the door of the peristome that opens and closes above-mentioned storeroom, makes above-mentioned LED flash.
8. refrigerator as claimed in claim 6, it is characterized in that, above-mentioned control device has at least diagnosis for the function of the operating condition of cooling off the refrigerating circulatory device in the above-mentioned storeroom, operating condition has in the unusual situation when above-mentioned door is opened, unusual according to this, make above-mentioned LED flash.
9. refrigerator as claimed in claim 7 is characterized in that, above-mentioned control device makes that the luminous quantity of above-mentioned light emitting diode is variable to increase and decrease brightness, to replace the flicker of this light emitting diode.
CN201210175688.8A 2011-07-14 2012-05-31 Refrigerator Active CN102878745B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-155852 2011-07-14
JP2011155852A JP5586535B2 (en) 2011-07-14 2011-07-14 refrigerator

Publications (2)

Publication Number Publication Date
CN102878745A true CN102878745A (en) 2013-01-16
CN102878745B CN102878745B (en) 2015-08-05

Family

ID=47480172

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210175688.8A Active CN102878745B (en) 2011-07-14 2012-05-31 Refrigerator

Country Status (2)

Country Link
JP (1) JP5586535B2 (en)
CN (1) CN102878745B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104279809A (en) * 2014-09-29 2015-01-14 青岛海尔股份有限公司 Refrigerator
CN104654734A (en) * 2015-02-06 2015-05-27 海信容声(广东)冰箱有限公司 Method for indicating failure by using mesooecium illumination lamp and cold storage device
CN105222501A (en) * 2014-05-29 2016-01-06 宁波高新区赛尔富电子有限公司 A kind of LED lamp for refrigerator-freezer
CN105814384A (en) * 2013-12-13 2016-07-27 Bsh家用电器有限公司 Illumination device having an optical waveguide and domestic refrigeration device having such an illumination device
CN112146326A (en) * 2019-06-28 2020-12-29 代傲阿扣基金两合公司 Temperature indicating and regulating assembly

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6137859B2 (en) * 2013-02-18 2017-05-31 三菱電機株式会社 Refrigerator and lighting device
DE102013225841A1 (en) 2013-12-13 2015-06-18 BSH Hausgeräte GmbH Refrigerating appliance with a light
JP2016086940A (en) * 2014-10-31 2016-05-23 日立工機株式会社 Electrically-driven dust collector
KR102167542B1 (en) * 2018-06-01 2020-10-19 엘지전자 주식회사 Refrigerator
KR102624852B1 (en) * 2018-12-11 2024-01-15 삼성전자주식회사 Refrigerator
JP7430085B2 (en) 2020-03-24 2024-02-09 日立グローバルライフソリューションズ株式会社 refrigerator
JP6972283B1 (en) * 2020-11-25 2021-11-24 シャープ株式会社 Containment illuminators and depots

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040090859A (en) * 2003-04-18 2004-10-27 엘지전자 주식회사 A lamp apparatus for refrigerators
JP2008039355A (en) * 2006-08-10 2008-02-21 Matsushita Electric Ind Co Ltd Refrigerator
CN101198272A (en) * 2005-07-04 2008-06-11 星崎电机株式会社 Showcase
CN101551186A (en) * 2008-03-31 2009-10-07 无锡松下冷机有限公司 Refrigerator and control method thereof
KR20090132400A (en) * 2008-06-20 2009-12-30 엘지전자 주식회사 Lighting apparatus for refrigerator
CN201724515U (en) * 2010-07-13 2011-01-26 江苏德莱仕电器有限公司 Lighting system used in refrigerator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005344975A (en) * 2004-06-01 2005-12-15 Toshiba Corp Refrigerator
JP4409414B2 (en) * 2004-11-08 2010-02-03 株式会社東芝 refrigerator
FR2887969B1 (en) * 2005-06-30 2007-10-12 Bonnet Neve Sa REFRIGERATED UNIT, COMPRISING A LOWER PART FORMING AN OPEN BIN ON TOP AND A UPPER PART IN CUPBOARD SHAPE
JP4869715B2 (en) * 2005-07-04 2012-02-08 ホシザキ電機株式会社 Showcase
JP5124176B2 (en) * 2007-06-11 2013-01-23 三洋電機株式会社 Showcase
CH703147B1 (en) * 2008-06-04 2011-11-30 Forster Kuechen & Kuehltechnik Ag Refrigerator with a shell-like inner container.
JP5197185B2 (en) * 2008-06-30 2013-05-15 三菱電機株式会社 refrigerator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040090859A (en) * 2003-04-18 2004-10-27 엘지전자 주식회사 A lamp apparatus for refrigerators
CN101198272A (en) * 2005-07-04 2008-06-11 星崎电机株式会社 Showcase
JP2008039355A (en) * 2006-08-10 2008-02-21 Matsushita Electric Ind Co Ltd Refrigerator
CN101551186A (en) * 2008-03-31 2009-10-07 无锡松下冷机有限公司 Refrigerator and control method thereof
KR20090132400A (en) * 2008-06-20 2009-12-30 엘지전자 주식회사 Lighting apparatus for refrigerator
CN201724515U (en) * 2010-07-13 2011-01-26 江苏德莱仕电器有限公司 Lighting system used in refrigerator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105814384A (en) * 2013-12-13 2016-07-27 Bsh家用电器有限公司 Illumination device having an optical waveguide and domestic refrigeration device having such an illumination device
CN105222501A (en) * 2014-05-29 2016-01-06 宁波高新区赛尔富电子有限公司 A kind of LED lamp for refrigerator-freezer
CN104279809A (en) * 2014-09-29 2015-01-14 青岛海尔股份有限公司 Refrigerator
CN104654734A (en) * 2015-02-06 2015-05-27 海信容声(广东)冰箱有限公司 Method for indicating failure by using mesooecium illumination lamp and cold storage device
CN104654734B (en) * 2015-02-06 2017-04-05 海信容声(广东)冰箱有限公司 Between a kind of utilization, room illumination lamp carries out the method and cold storage plant of indicating fault
CN112146326A (en) * 2019-06-28 2020-12-29 代傲阿扣基金两合公司 Temperature indicating and regulating assembly
CN112146326B (en) * 2019-06-28 2024-02-06 代傲阿扣基金两合公司 Temperature indicating and adjusting assembly

Also Published As

Publication number Publication date
JP5586535B2 (en) 2014-09-10
CN102878745B (en) 2015-08-05
JP2013019657A (en) 2013-01-31

Similar Documents

Publication Publication Date Title
CN102878745B (en) Refrigerator
JP5106245B2 (en) refrigerator
JP5197185B2 (en) refrigerator
JP5197172B2 (en) refrigerator
KR101073838B1 (en) Control apparatus for showcase
JP5366686B2 (en) refrigerator
JP2006292221A (en) Refrigerator
US8393746B2 (en) Lighting device for refrigerator and a method of controlling the same
WO2011004569A1 (en) Refrigerator
WO2013054239A2 (en) Cooling appliance and operation method thereof
JP5853163B2 (en) refrigerator
JP6321718B2 (en) Defroster for evaporator and control method thereof
KR20090074973A (en) Lighting device for refrigerator
JP5419823B2 (en) refrigerator
TWI786386B (en) refrigerator
KR20050045043A (en) Illuminator
KR100851054B1 (en) A lighting apparatus for refrigerator
JP5579561B2 (en) Vending machine lighting control device
WO2011077651A1 (en) Refrigerator
JP2011144993A (en) Refrigerator
JP2008070024A (en) Refrigerator
JP2011144992A (en) Refrigerator
WO2020170421A1 (en) Refrigerator
JP2009115372A (en) Refrigerator
JP2008020122A (en) Refrigerator

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant