CN208722796U - Light guide ring, control case assembly and household electrical appliance - Google Patents
Light guide ring, control case assembly and household electrical appliance Download PDFInfo
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- CN208722796U CN208722796U CN201821266937.3U CN201821266937U CN208722796U CN 208722796 U CN208722796 U CN 208722796U CN 201821266937 U CN201821266937 U CN 201821266937U CN 208722796 U CN208722796 U CN 208722796U
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Abstract
The utility model provides a kind of light guide ring, control case assembly and household electrical appliance.Wherein, light guide ring includes cricoid ontology and multiple convex closures for extending from ontology towards outside, and convex closure bottom is equipped with the lamp hole for installing electroluminescent lamp.Light guide ring provided by the utility model, by the outer body in light guide ring, convex closure is set, in convex closure bottom, the lamp hole for installing electroluminescent lamp is set, when light at the top of electroluminescent lamp by being irradiated at the top of convex closure, light can be reflected, and directive light guide ring mesoporous inner sidewall, then it is reflected back inside light guide ring through light guide ring mesoporous inner sidewall, and multiple tracks reflection is carried out in light guide ring, finally to be lit at the top of light guide ring, cause on the inside of light guide ring without being arranged reflective structure, the production efficiency of product when reducing material and cost of labor, and improving batch production.
Description
Technical field
The utility model relates to household appliance technical fields, more specifically, be related to a kind of light guide ring, it is a kind of include the light guide ring
Control case assembly and a kind of household electrical appliance including the control case assembly.
Background technique
With the improvement of living standards, user is higher and higher to the appearance requirement of household electronic products.To pursue product
Technology sense and dazzle cruel sense, the manipulation part of many products can design one for manipulation knob, the design one on the outside of knob
Light guide ring after energization, can be lit at the top of the light guide ring.
In current scheme, reflective paster need to be posted on light guide ring or is coated with reflective oil, can just there is enough light
It will be far from the light guide ring top surface at lamp to light.With skyrocketing for raw material and labor wage, the program need to carry out light guide ring
Spray treatment or patch reflective sheeting processing, undoubtedly increase the cost of product, the production efficiency of product when also reducing batch production,
So there are biggish rooms for improvement for the organization plan.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.
For this purpose, the purpose of the utility model first aspect is, a kind of light guide ring is provided.
The purpose of the utility model second aspect is, provides a kind of control case assembly including above-mentioned light guide ring.
Purpose in terms of the utility model third is, provides a kind of household electrical appliance including above-mentioned control box component.
To achieve the above object, the technical solution of the utility model first aspect provides a kind of light guide ring, is used for household
Electric appliance, the light guide ring include cricoid ontology and multiple convex closures for extending from the ontology towards outside, the convex closure bottom
Equipped with the lamp hole for installing electroluminescent lamp.
The light guide ring that the utility model above-mentioned technical proposal provides, is arranged convex closure, convex closure bottom is equipped on the outside of light guide ring
Lamp hole, lamp hole position enter inside light guide ring out of lamp hole for installing electroluminescent lamp, the light that electroluminescent lamp issues, and utilize light
Total reflection principle, when light at the top of electroluminescent lamp by being irradiated at the top of convex closure, light can be reflected, and on the inside of directive light guide ring mesoporous
Then wall is reflected back in light guide ring through mesoporous inner sidewall, and multiple tracks reflection is carried out in light guide ring, and there is no need in light guide ring
Spray treatment or patch reflective sheeting are carried out on the inner sidewall of hole, it will be able to realize the light weight that will be come out from light guide ring convex closure top reflective
It is newly reflected back inside light guide ring, and carries out the purpose of multiple tracks reflection in light guide ring, so that material and cost of labor are reduced, and
The production efficiency of product when improving batch production；When the light of reflection is through light guide ring bottom, light can be reflected to leaded light
Circle top, so that being lit at the top of light guide ring.
In addition, the light guide ring that the utility model above-mentioned technical proposal provides can also have following additional technical feature:
In the above-mentioned technical solutions, it is preferable that inclined-plane there are two setting at the top of the convex closure, two inclined-planes surround one
Groove.
Two inclined-planes surround a groove, it is ensured that light can inject the left and right sides, and the directive light guide ring mesoporous behind inclined-plane
Inner sidewall.
In the above-mentioned technical solutions, it is preferable that the clamp on two inclined-planes and the light guide ring central axis described are led
The angle of the parallel lines of aperture central axis is within the scope of 30 °~60 °, the clamp and the light guide ring central axis on two inclined-planes
Or the angle on plane determined by the parallel lines of the light guide ring central axis and each inclined-plane is within the scope of 30 °~60 °.
By rationally designing the tilt angle on two inclined-planes at the top of convex closure, so that being installed in the lamp hole of convex closure bottom
The light that electroluminescent lamp issues enters inside light guide ring out of lamp hole, and using the total reflection principle of light, light passes through electroluminescent lamp top
When two inclined-planes in portion, light can be reflected, because the two inclined-planes each inclined-plane there are two direction angle, so light is being penetrated
After on to the inclined-plane, light is not instead of only penetrated towards light guide ring center position, is tilted a certain angle directive leaded light with center position
Mesoporous inner sidewall is enclosed, because light is not to be emitted directly toward light guide ring mesoporous inner sidewall, so luminous energy is reflected back leaded light through mesoporous inner sidewall
In circle, and multiple tracks reflection is carried out in light guide ring, it is anti-there is no need to carry out spray treatment or patch on light guide ring mesoporous inner sidewall
Machine-glazed paper, it will be able to realizing will return inside light guide ring from the light back that light guide ring convex closure top bevel reflects, and
The purpose of multiple tracks reflection is carried out in light guide ring, to reduce material and cost of labor, and product when improving batch production
Production efficiency；When the light of reflection is through light guide ring bottom, light can be reflected at the top of light guide ring, so that light guide ring top
Portion is lit, it is ensured that the uniformity being lit at the top of light guide ring.
In the above-mentioned technical solutions, it is preferable that the clamp on two inclined-planes is perpendicular to the light guide ring central axis
Done on face projection line that projection is formed at a distance from the lamp hole central axis below the clamp and the electroluminescent lamp
Diameter ratio is in 0~2/3 range.
In order to guarantee that the light of electroluminescent lamp sending can equably inject the inclined-plane of clamp two sides, the folder on two inclined-planes is designed
The projection line that line does projection formation on the face perpendicular to light guide ring central axis just falls in the lamp hole center below clamp
On axis, or deviate the lamp hole central axis being located at below clamp is no more than the diameter of electroluminescent lamp 2/3.
In the above-mentioned technical solutions, it is preferable that the multiple convex closure being provided at circumferentially spaced along the ontology, it is each described
It is all provided at the top of convex closure there are two the inclined-plane, the extended line of the clamp on two inclined-planes intersects at the guide-lighting circle center
Same point on axis.
The above-mentioned extended line for being designed to ensure that the clamp on two inclined-planes at the top of multiple convex closures intersects with light guide ring central axis
And the two angle is equal, namely ensures that multiple inclined-planes are equal along the tilt angle of light guide ring central axis direction.
In the above-mentioned technical solutions, it is preferable that two inclined-planes are set about the clamp bilateral symmetry on two inclined-planes
It sets.
The above-mentioned clamp for being designed to ensure that two inclined-planes and light guide ring central axis (or parallel lines of light guide ring central axis) institute
The angle on determining plane and a wherein inclined-plane is equal to the angle with another inclined-plane.
In any of the above-described technical solution, it is preferable that the bottom of the ontology is equipped with rack gear, the highest point on the inclined-plane
Set the height of the tooth higher than rack gear highest point position.
The highest point position on design inclined-plane is higher than the height of the tooth of rack gear highest point position, to ensure that light is convex through light guide ring
After the slant reflection for wrapping top, light can be mapped on the tooth of highest point position, so that it is guaranteed that light can be through the inclined-plane of each tooth
It is reflected at the top of light guide ring, will be lighted at the top of light guide ring.
In the above-mentioned technical solutions, it is preferable that the multiple convex closure being provided at circumferentially spaced along the ontology, the rack gear
Tooth be circumferentially divided into the quantity such as the convex closure and the multiple groups that are correspondingly arranged, the height of every group of tooth is by institute corresponding with this group of tooth
The position for stating the lamp hole central axis of the two laterally closer convex closures of convex closure gradually rises, the institute at the top of the convex closure
State inclined-plane highest point position be higher than in this group of tooth farthest away from the position of the lamp hole central axis tooth height.
To ensure light after the slant reflection at the top of light guide ring convex closure, light can be mapped to away from the oblique of the farthest tooth of electroluminescent lamp
On face, so the highest point on the inclined-plane at the top of light guide ring convex closure should be higher than that in this group of tooth corresponding with convex closure of light guide ring bottom, most
The height of the tooth of position far from electroluminescent lamp.
The technical solution of the utility model second aspect provides a kind of control case assembly, comprising: control box rear cover；Route
Plate covers after being installed in the control box, and the wiring board is equipped with electroluminescent lamp；Leaded light as described in any of the above-described technical solution
Circle, the electroluminescent lamp correspondence are inserted into the lamp hole of the light guide ring；Control box, be installed at the top of the light guide ring and with it is described
Control box rear cover is fixedly connected, and offers knob hole on the control box；And knob, it is installed at the knob hole.
The control case assembly that the utility model above-mentioned technical proposal provides, because it includes described in any of the above-described technical solution
Light guide ring, thus the beneficial effect with light guide ring described in any of the above-described technical solution.
In the above-mentioned technical solutions, it is preferable that the control case assembly further include: route board mount is installed in the line
On the plate of road, the route board mount is equipped with through-hole corresponding with the electroluminescent lamp, and the light guide ring is installed on the wiring board
On bracket, the electroluminescent lamp is inserted into the lamp hole after passing through the through-hole.
The fixation of light guide ring in the circuit board is realized using route board mount, and structure is simple, easy to assembly.
In the above-mentioned technical solutions, it is preferable that the route board mount is equipped with light-blocking muscle, and the light-blocking muscle is close to described
The convex closure of light guide ring is arranged and in the inside of the light guide ring mesoporous inner sidewall, the light-blocking muscle and the light guide ring mesoporous
The distance between side wall is less than 1mm, and the height of the light-blocking muscle is higher than the top surface of the electroluminescent lamp.
Close to the position of light guide ring mesoporous inner sidewall on assist side bracket, and close to the convex closure position of light guide ring dress electroluminescent lamp
Set one light-blocking muscle of each design, and design the distance between light-blocking muscle and light guide ring mesoporous inner sidewall less than 1mm, the light-blocking muscle because with
The distance of light guide ring mesoporous inner sidewall is small, and the height of light-blocking muscle is higher than the top surface of electroluminescent lamp, so even if having light emission to leading
In the gap of aperture and the light-blocking muscle, user is also difficult to see that the light of position at this, namely is unlikely to from control box and knob
Gap in see that light guide ring has the position of electroluminescent lamp excessively bright.
In the above-mentioned technical solutions, it is preferable that the top surface of the control box is covered with film, and the film is by the control box
Top surface extend at the top sidewall of the knob hole, extend into the height of the film at the top sidewall of the knob hole
Greater than 1mm and it is printed as opaque color.
In the top surface overlay film (such as PET film) of control box, and make in one section of the film roll knob hole to control box, tool
Body, the height for extending into the film at the top sidewall of knob hole is greater than 1mm, and the film is printed as nontransparent color, so
Light at the top of light guide ring when passing through at the top of control box, light control that the film at the top of box not print one can be punctuated it is bright, because
The blocking of one section of film (being printed as nontransparent color) in knob hole, light can not be mapped to control from the side wall of control box knob hole
In the gap of box and knob, be lit to realize and enclose the part do not printed around knob one at the top of only control box, control box with
It is very weak without light or light in the gap of knob, to well solve the non-uniform problem of light in existing scheme.
In any of the above-described technical solution, it is preferable that the control case assembly further include: key fixing seat is fixed on institute
It states on wiring board；And key support, it is installed in the key fixing seat, in the key fixing seat and the key support
Be installed on one key pillar, another be equipped with the guide and limit hole passed through for the key pillar.
A upper installing key pillar in key fixing seat and key support, another is equipped with passes through for key pillar
Guide and limit hole, thus using guide and limit hole limitation key pillar generation swing by a relatively large margin, accordingly even when work as key column
When son is very long, when pressing marking keys (such as key convex closure) on control panel, key pillar there will not be very big skew, begin
It is limited in guide and limit hole eventually, when so that pressing keys identifying, marking keys can be accurately pressed in by key pillar
On wiring board key, to ensure that the reliability of product work, well solve because key pillar is too long in existing scheme,
The problem of key pillar is easy skew and leads to keys deactivation.
In the above-mentioned technical solutions, it is preferable that the control case assembly further include: control panel is installed in the key
At the top of fixing seat and the key support, the wiring board is equipped with wiring board key, the control panel be equipped with it is described
The corresponding marking keys of wiring board key, the key pillar is between the marking keys and the wiring board key, institute
It states and is able to drive the key pillar pressing wiring board key when marking keys are pressed.
By the marking keys on pressing control panel, the key pillar on key fixing seat (or key support) is driven to move
Dynamic, pressing force is passed to the wiring board key on wiring board by key pillar, to realize the control to product；Specifically, it presses
Key is identified as the tagged function key of tool, such as cooking, mark of cooking congee usually are set at marking keys to improve pressing feel
It is set to the convex closure for improving pressing feel, certainly, marking keys can not also be raised next, can specifically carry out according to actual product situation
It rationally designs.
The technical solution of the utility model third aspect provides a kind of household electrical appliance, including such as any of the above-described technical solution
The control case assembly, and with the beneficial effect for controlling case assembly described in any of the above-described technical solution.
The additional aspect and advantage of the utility model will become obviously in following description section, or practical new by this
The practice of type is recognized.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the decomposition texture schematic diagram of light guide ring described in the utility model one embodiment and wiring board；
Fig. 2 is light guide ring shown in Fig. 1 and the schematic view of the front view after wiring board assembly；
Fig. 3 be in Fig. 2 A-A to schematic cross-sectional view；
Fig. 4 is the side structure schematic view of light guide ring shown in Fig. 1；
Fig. 5 is the schematic view of the front view of light guide ring described in Fig. 1；
Fig. 6 is the schematic cross-sectional view of B-B direction in Fig. 5；
Fig. 7 be in Fig. 6 C-C to schematic cross-sectional view；
Fig. 8 is the decomposition texture schematic diagram that case assembly is controlled described in the utility model one embodiment；
Fig. 9 is the schematic view of the front view after the assembly of control case assembly shown in Fig. 8；
Figure 10 be in Fig. 9 D-D to schematic cross-sectional view；
Figure 11 is the enlarged structure schematic diagram in the portion E in Figure 10；
Figure 12 is the enlarged structure schematic diagram in the portion F in Figure 11；
Figure 13 is the structural schematic diagram of light guide ring and route board mount in control case assembly shown in Fig. 8；
Figure 14 is light guide ring shown in Figure 13 and the schematic view of the front view after the assembly of route board mount；
Figure 15 be in Figure 14 G-G to schematic cross-sectional view；
Figure 16 is the enlarged structure schematic diagram in the portion H in Figure 15；
Figure 17 is the decomposition texture schematic diagram that case assembly is controlled described in the utility model one embodiment；
Figure 18 is the decomposition texture schematic diagram that case assembly is controlled described in another embodiment of the utility model.
Wherein, corresponding relationship of the Fig. 1 into Figure 18 between appended drawing reference and component names are as follows:
1 light guide ring, 10 ontologies, 11 convex closures, 111 lamp holes, 112 inclined-planes, 113 clamps, 12 rack gears, 13 light guide ring mesoporous insides
Wall, 14 light guide rings top, 2 wiring boards, 21 electroluminescent lamps, 3 route board mounts, 31 through-holes, 32 light-blocking muscle, 4 knobs, after 5 control boxes
Lid, 51 accommodation grooves, 6 control boxes, 61 knob holes, 62 films, 63 water-blocking grooves, 7 key fixing seats, 71 key pillars, 72 guide and limits
Hole, 8 key supports, 81 guide and limit holes, 82 key pillars, 9 control panels, 91 marking keys.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Many details are explained in the following description in order to fully understand the utility model, still, this is practical
It is novel to be implemented using other than the one described here mode, therefore, the protection scope of the utility model not by
The limitation of following public specific embodiment.
With reference to the accompanying drawings 1 to Figure 18 description according to the light guide rings of some embodiments of the utility model, control case assembly and
Household electrical appliance.
As shown in Fig. 1 to Figure 18, according to a kind of light guide ring 1 that some embodiments of the utility model provide, light guide ring 1 includes
Cricoid ontology 10 and the multiple convex closures 11 extended from ontology 10 towards outside, 11 bottom of convex closure are equipped with for installing electroluminescent lamp 21
Lamp hole 111.
Convex closure 11,11 bottom of convex closure is arranged in the utility model light guide ring 1 provided by the above embodiment on the outside of light guide ring 1
Equipped with lamp hole 111, for installing electroluminescent lamp 21, the light that electroluminescent lamp 21 issues is entered out of lamp hole 111 leads 111 position of lamp hole
Inside aperture 1, using the total reflection principle of light, when light is by being irradiated to 11 top of convex closure at the top of electroluminescent lamp 21, light can be anti-
Penetrate, and directive light guide ring mesoporous inner sidewall 13, then light is reflected back in light guide ring 1 through mesoporous inner sidewall, and in light guide ring 1 into
The reflection of row multiple tracks, there is no need to spray treatment or patch reflective sheeting are carried out on light guide ring mesoporous inner sidewall 13, it will be able to which realizing will
The light back come out from 1 convex closure of light guide ring, 11 top reflective returns inside light guide ring 1, and multiple tracks is carried out in light guide ring 1
The purpose of reflection, to reduce material and cost of labor, and when improving batch production product production efficiency；When reflection
When light is through 1 bottom of light guide ring, light can be reflected to 14 at the top of light guide ring, so that light guide ring top 14 is lit.
In one embodiment of the utility model, as shown in Figure 1, setting at the top of convex closure 11, there are two inclined-planes 112, and two tiltedly
Face 112 surrounds a groove, it is ensured that light can inject the left and right sides, and the directive light guide ring mesoporous inner sidewall behind inclined-plane.
Further, as shown in Figure 6 and Figure 7, the clamp 113 on two inclined-planes 112 and 1 central axis of light guide ring or light guide ring 1
The angle of the parallel lines of central axis the clamp 113 and 1 central axis of light guide ring on two inclined-planes 112 or is led within the scope of 30 °~60 °
The angle on plane determined by the parallel lines of 1 central axis of aperture and each inclined-plane 112 is within the scope of 30 °~60 °.
As shown in fig. 6, the α in diagram indicates the clamp 113 and 1 central axis of light guide ring (or light guide ring 1 on two inclined-planes 112
The parallel lines of central axis) angle, 30 °≤α≤60 °.
As shown in fig. 7, the β in diagram indicates 1 central axis of clamp 113 and light guide ring (or the light guide ring 1 on two inclined-planes 112
The parallel lines of central axis) determined by plane and a wherein inclined-plane 112 angle, γ indicates 113 He of clamp on two inclined-planes 112
The angle of plane and another inclined-plane 112 determined by 1 central axis of light guide ring (or parallel lines of 1 central axis of light guide ring), 30 °≤β
≤ 60 °, 30 °≤γ≤60 °.
In other words, section (C-C as shown in Figure 6 to do section) is done perpendicular to two inclined-planes 112, in section and inclined-plane 112
Junction form two oblique lines for intersecting at an intersection point (two oblique lines for being located at the two sides β and γ as shown in Figure 7), each oblique line
With cross the intersection point and be parallel between the straight line (as shown in Figure 7 straight line) between β and γ of 1 central axis of light guide ring
Angle is within the scope of 30 °~60 °, i.e. 30 °≤β≤60 °, and 30 °≤γ≤60 °.
By rationally designing the tilt angle on two inclined-planes at the top of convex closure, so that being installed in the lamp hole of convex closure bottom
The light that electroluminescent lamp 21 issues is entered out of lamp hole 111 inside light guide ring 1, and using the total reflection principle of light, light is by hair
When two inclined-planes 112 at the top of light lamp 21, light can be reflected, because there are two directions for each inclined-plane 112 on the two inclined-planes 112
Angle, so light is after being mapped on the inclined-plane 112, light is not only penetrated towards 1 center position of light guide ring, with center position
It is tilted a certain angle directive light guide ring mesoporous inner sidewall 13, because light is not to be emitted directly toward light guide ring mesoporous inner sidewall 13, so light
It can be reflected back through mesoporous inner sidewall in light guide ring 1, and carry out multiple tracks reflection in light guide ring 1, there is no need in light guide ring mesoporous
Spray treatment or patch reflective sheeting are carried out on inner sidewall 13, it will be able to which realization will be reflected from 1 convex closure of light guide ring, 11 top bevel 112
The light back come returns inside light guide ring 1, and the purpose of multiple tracks reflection is carried out in light guide ring 1, to reduce material
And cost of labor, and when improving batch production product production efficiency；When the light of reflection is through the rack gear 12 of 1 bottom of light guide ring
When, light can be by the top of 12 slant reflection of rack gear to light guide ring 14, so that light guide ring top 14 is lit, it is ensured that light guide ring
The uniformity that 1 top is lit.
Further, the clamp 113 on two inclined-planes 112 does what projection was formed on the face perpendicular to 1 central axis of light guide ring
Projection line is at a distance from 111 central axis of lamp hole for being located at 113 lower section of clamp and the diameter ratio of electroluminescent lamp 21 is in 0~2/3 range
It is interior.
In order to guarantee that the light of the sending of electroluminescent lamp 21 can equably inject the inclined-plane 112 of 113 two sides of clamp, two are designed
The clamp 113 on inclined-plane 112 does the projection line that projection is formed on the face perpendicular to 1 central axis of light guide ring and just falls in positioned at clamp
On 111 central axis of lamp hole of 113 lower sections, or deviate 111 central axis of lamp hole for being located at 113 lower section of clamp no more than electroluminescent lamp 21
Diameter 2/3.
Specifically, electroluminescent lamp 21 can be the various electroluminescent lamps 21 such as lamppost or SMD lamp, it is lamppost for lamp hole 111
Hole installs the scheme of lamppost in lamppost hole, can use the diameter of lamppost also to be defined, the clamp on two inclined-planes 112
113 do the projection line that projection is formed and the lamppost central axis being located at below clamp 113 on the face perpendicular to 1 central axis of light guide ring
Distance and lamppost diameter ratio in 0~2/3 range, it is preferable that in 0~1/2 range.
Preferably, as shown in Figure 2 and Figure 5, multiple being provided at circumferentially spaced along ontology 10 of convex closure 11, the top of each convex closure 11
Portion is all provided with there are two inclined-plane 112, and the extended line of the clamp 113 on two inclined-planes 112 intersects at same on 1 central axis of light guide ring
Point.
The extended line of the above-mentioned clamp 113 for being designed to ensure that multiple 11 two inclined-planes 112 in top of convex closure is and in light guide ring 1
Mandrel intersects and the two angle is equal, namely ensures multiple inclined-planes 112 equal along the tilt angle of 1 central axis direction of light guide ring
It is equal.
Preferably, as shown in Figure 2 and Figure 5, two inclined-planes 112 are set about 113 bilateral symmetry of clamp on two inclined-planes 112
It sets.
The above-mentioned clamp 113 for being designed to ensure that two inclined-planes 112 and 1 central axis of light guide ring (or 1 central axis of light guide ring is flat
Line) determined by the angle on plane and a wherein inclined-plane 112 be equal to the angle with another inclined-plane 112.
In one specific embodiment, as shown in Figure 1, Figure 2 and shown in Fig. 5, the quantity of convex closure 11 is three, and three convex closures 11 are along leading
1 side wall of aperture is arranged circumferentially, it is preferable that light guide ring 1 is using central shaft as rotation center rotational symmetry, namely entirely leads
Aperture 1 is designed as rotational symmetry structure.
Further, as shown in Figure 3 and Figure 4, the bottom of ontology 10 is equipped with rack gear 12, and the highest point position on inclined-plane 112 is high
In the height of the tooth of 12 highest point position of rack gear.
The highest point position on design inclined-plane 112 is higher than the height of the tooth of 12 highest point position of rack gear, to ensure light through leading
After the inclined-plane 112 at the top of 1 convex closure of aperture 11 reflects, light can be mapped on the tooth of highest point position, so that it is guaranteed that light can be through
The inclined-plane 112 of each tooth is reflected into 14 at the top of light guide ring, and at the top of light guide ring 14 are lighted.
Still further, 1 outside of light guide ring is circumferentially spaced equipped with multiple convex as shown in Fig. 1, Fig. 3, Fig. 4, Fig. 6 and Fig. 7
Packet 11, the tooth of rack gear 12 be circumferentially divided into the quantity such as convex closure 11 and the multiple groups that are correspondingly arranged, the height of every group of tooth by with the group
The position of 111 central axis of lamp hole of two laterally closer convex closures 11 of the corresponding convex closure 11 of tooth gradually rises, and is located at 11 top of convex closure
Inclined-plane 112 highest point position be higher than in this group of tooth farthest away from the position of 111 central axis of lamp hole tooth height.
As shown in figure 4, the highest point position for being located at the inclined-plane 112 at 11 top of convex closure is higher than in this group of tooth farthest away from lamp hole
The height of the tooth of the position of 111 central axises, i.e. H1 > 0.
To ensure light after the inclined-plane 112 at 1 convex closure of light guide ring, 11 top reflects, light can be mapped to farthest away from electroluminescent lamp 21
Tooth inclined-plane 112 on, so the highest point on the inclined-plane 112 at the top of 1 convex closure of light guide ring 11 should be higher than that 1 bottom of light guide ring and convex closure
In 11 corresponding this group of teeth, farthest away from the height of the tooth of the position of electroluminescent lamp 21.
In one specific embodiment, as shown in Figures 1 to 7, one or more convex closures 11 are designed on the outside of light guide ring 1, it is convex
Wrapping 11 bottoms and designing has lamppost hole, and after the completion of Product Assembly, lamppost is inserted into the lamppost hole, and in lamppost hole, top design has two
A inclined-plane 112, surrounds a groove between two inclined-planes 112, the clamp 113 on two inclined-planes 112 and 1 central axis of light guide ring
Angle is i.e. 30 °≤α≤60 ° within the scope of 30 °~60 °；To guarantee the impartial inclined-plane 112 for injecting the left and right sides of light energy, this two
The clamp 113 on a inclined-plane 112 does the projection line that projection is formed on the face perpendicular to 1 central axis of light guide ring and is located at clamp 113
The distance and lamppost diameter ratio of the lamppost central axis of lower section are in 0~2/3 range；If vertical two inclined-planes 112 do section,
The junction on the section and inclined-plane 112 forms two oblique lines for intersecting at an intersection point, each oblique line and the mistake intersection point and is parallel to
Angle between the straight line of 1 central axis of light guide ring is within the scope of 30 °~60 °, i.e. 30 °≤β≤60 °, and 30 °≤γ≤60 °；It is true
Light is protected after the inclined-plane 112 at 1 convex closure of light guide ring, 11 top reflects, light can be mapped to the inclined-plane 112 away from the farthest tooth of lamppost, institute
It is higher than the tooth in 1 bottom rack gear 12 of light guide ring farthest away from the position of lamp with the highest point on the inclined-plane 112 at 1 convex closure of light guide ring, 11 top
Height, i.e. H1 > 0.
Specifically, light is entered out of lamppost hole inside light guide ring 1, and using the total reflection principle of light, light passes through lamppost
When two inclined-planes 112 at top, light can be reflected, because the two inclined-planes 112 each inclined-plane 112 there are two direction angle
Degree tilts so light, after being mapped on the inclined-plane 112, light is not instead of only penetrated towards 1 center position of light guide ring with center position
Certain angle directive light guide ring mesoporous inner sidewall 13, because light is not to be emitted directly toward light guide ring mesoporous inner sidewall 13, so luminous energy passes through
Light guide ring mesoporous inner sidewall 13 is reflected back in light guide ring 1, and multiple tracks reflection is carried out in light guide ring 1, when the light of reflection is through leaded light
When enclosing the rack gear 12 of 1 bottom, light can be by the top of 12 slant reflection of rack gear to light guide ring 14, so that 14 quilts at the top of light guide ring
It lights；To ensure light after the inclined-plane 112 at 1 convex closure of light guide ring, 11 top reflects, light can be mapped to away from the farthest tooth of lamppost
Inclined-plane 112, thus the highest point on the inclined-plane 112 at the top of 1 convex closure of light guide ring 11 should be higher than that in 1 bottom rack gear 12 of light guide ring farthest away from
The height of the tooth of the position of lamppost；By above-mentioned design without carrying out spray treatment to light guide ring mesoporous inner sidewall 13 or pasting reflective
Paper, thus while reduce product cost, also improve the production efficiency in batch production.
As shown in Fig. 8 to Figure 16, the embodiment of the utility model second aspect provides a kind of control case assembly, comprising:
Control box rear cover 5, wiring board 2, the light guide ring 1 of such as above-mentioned any embodiment, control box 6 and knob 4, wiring board 2 are installed in control
On box rear cover 5 processed, specifically, accommodation groove 51 can be set on control box rear cover 5, wiring board 2 is mounted in accommodation groove 51,
Wiring board 2 is equipped with electroluminescent lamp 21；The correspondence of electroluminescent lamp 21 is inserted into the lamp hole 111 of light guide ring 1；Control box 6 is installed in leaded light
It encloses top 14 and is fixedly connected with control box rear cover 5, control and offer knob hole 61 on box 6；Knob 4 is installed in knob hole 61
Place.
The utility model control case assembly provided by the above embodiment, because it includes the light guide ring 1 of any of the above-described embodiment,
The thus beneficial effect of the light guide ring 1 with any of the above-described embodiment, details are not described herein.
In one embodiment of the utility model, as shown in Fig. 8 to Figure 16, case assembly is controlled further include: wiring board branch
Frame 3 is installed on wiring board 2, and route board mount 3 is equipped with through-hole 31 corresponding with electroluminescent lamp 21, and light guide ring 1 is installed on route
On board mount 3, electroluminescent lamp 21 is inserted into lamp hole 111 after passing through through-hole 31.
The fixation in 1 assist side 2 of light guide ring is realized using route board mount 3, and structure is simple, easy to assembly.
In one embodiment of the utility model, as shown in Fig. 8, Figure 11, Figure 13 to Figure 16, set on route board mount 3
There is light-blocking muscle 32, light-blocking muscle 32 is arranged close to the convex closure 11 of light guide ring 1 and is located at the inside of light guide ring mesoporous inner sidewall 13, light-blocking
The distance between muscle 32 and light guide ring mesoporous inner sidewall 13 are less than 1mm, and the height of light-blocking muscle 32 is higher than the top of electroluminescent lamp 21
Face.
As shown in figure 16, the distance between light-blocking muscle 32 and light guide ring mesoporous inner sidewall 13 are less than 1mm, i.e. D1 < 1mm；Gear
The height of light muscle 32 is higher than the top surface of electroluminescent lamp 21, i.e. H2 > 0.
Close to the position of light guide ring mesoporous inner sidewall 13 on assist side bracket 3, and electroluminescent lamp 21 is filled close to light guide ring 1
A light-blocking muscle 32 is respectively designed in 11 position of convex closure, and designs the distance between light-blocking muscle 32 and light guide ring mesoporous inner sidewall 13 and be less than
1mm, the light-blocking muscle 32 is because small at a distance from light guide ring mesoporous inner sidewall 13, and the height of light-blocking muscle 32 is higher than the top of electroluminescent lamp 21
Portion face, so even if there is light emission into the gap of light guide ring 1 and the light-blocking muscle 32, user is also difficult to see that the bright of position at this
Light, namely be unlikely to see that light guide ring 1 has the position of electroluminescent lamp 21 excessively bright from the gap of control box 6 and knob 4.
Further, as shown in Fig. 9 to Figure 12, the top surface of control box 6 is covered with film 62, film 62 by control box 6 top
At portion's surface extension to the top sidewall of knob hole 61, the height of the film 62 extended at the top sidewall of knob hole 61 is greater than
1mm and it is printed as opaque color.
As shown in figure 12, the height for extending into the film 62 at the top sidewall of knob hole 61 is greater than 1mm, i.e. H3 > 1mm.
Control box 6 top surface overlay film 62 (such as PET film 62), and made film volume 62 one section to control box 6 rotation
In buttonhole 61, specifically, the height for extending into the film 62 at the top sidewall of knob hole 61 is greater than 1mm, and the film 62 is printed
At nontransparent color, so for 14 light when passing through control 6 top of box, light can will control the film at 6 top of box at the top of light guide ring
62 do not print one punctuate bright, because of the blocking of one section of film 62 (being printed as nontransparent color) in knob hole 61, light can not
It is mapped in the gap of control box 6 and knob 4 from the side wall of control 6 knob hole 61 of box, to realize that only 6 top of control box is around knob
4 one parts do not printed of circle are lit, control box 6 with it is very weak without light or light in the gap of knob 4, thus well
Solve the problems, such as that light is non-uniform in existing scheme.
Further, in order to prevent user when wiping manipulation part of the surface with wet rag, cause water on wet rag from
Gap between control box 6 and knob 4 enters at wiring board 2, the water-blocking groove 63 of one annular of setting, rotation at the top of control box 6
The outer ring of button 4 is inserted into water-blocking groove 63；In this structure basis, the film 62 of control 6 top surface of box can will be overlying on from control
The top surface of box 6 processed extends at the outer ring internal groove side wall of water-blocking groove 63, and design extends into the outer ring internal groove side wall of water-blocking groove 63
The height of the film 62 at place is greater than 1mm and is printed as opaque color.
Specifically, existing control box 6 is made of IMD technique, i.e., being covered with one layer at the top of transparent material has in printing
The PET film 62 of appearance fills the position of the knob hole 61 of knob 4 in control box 6 to show the luminous energy at top of light guide ring 1
It sets, stays a circle not print PET film 62；To save product cost, usually a circle lamp will not be designed in 1 bottom of light guide ring to light
14 at the top of light guide ring, but according to 1 actual size of light guide ring, 1 bottom of light guide ring arrange one or reasonable Arrangement it is a small amount of
LED light is lighted 14 at the top of light guide ring.To avoid light from projecting too much from the top of light guide ring 14 by the position of low beam, cause
14 lean on the position brightness of low beam excessively bright at the top of aperture, the position too dark brightness far from lamp, so lamp will not be designed in light guide ring 1
Underface, but design has convex closure 11 on the outside of light guide ring 1, lamp designs below convex closure 11, and in addition in 1 bottom of light guide ring, design has
The height of rack gear 12, the tooth of rack gear 12 is stepped up since the position for leaning on low beam, and the angle that each tooth has a face is
30 degree to 60 degree, so that the light energy reflected being mapped on the face is at the top of light guide ring 14.However in existing scheme inevitably
Some light is projected out of light guide ring 1 mesoporous by the inner sidewall of low beam.So as to cause the seam between knob 4 and control box 6
In gap, the brightness by the position of low beam is most bright.It to solve this problem often can be in light guide ring mesoporous inner sidewall 13 by the position of low beam
Reflective membrane 62 or reflectorised paint are sticked, so that increasing material cost simultaneously, also because more procedures will lead to production efficiency
Decline, even if in addition posting reflective membrane 62 in 1 inner sidewall of light guide ring or being coated with reflectorised paint, 14 light can will still be controlled at the top of light guide ring
It is lighted at the top of box 6 processed and the gap of knob 4, and brightness is markedly less than the brightness right above light guide ring 1 in the gap, so from
When seeing right above knob 4, it can be appreciated that the brightness irregularities in light region, which seriously affects the appearance of product, reduces
The class of product.
In one embodiment of the utility model, as shown in Figure 17 and Figure 18, case assembly is controlled further include: key is fixed
Seat 7 and key support 8, key fixing seat 7 are fixed on wiring board 2；Key support 8 is installed in key fixing seat 7, and key is solid
Be installed on one in reservation 7 and key support 8 key pillar 71 (or 82), another be equipped with for key pillar 71 (or
82) the guide and limit hole 81 (or 72) passed through.
Specifically, as shown in figure 17, key pillar 71 is installed in key fixing seat 7, key support 8 is equipped with for key
The guide and limit hole 81 that pillar 71 passes through；As shown in figure 18, key pillar 82 is installed on key support 8, in key fixing seat 7
Equipped with the guide and limit hole 72 passed through for key pillar 82.
Occur to swing by a relatively large margin using guide and limit hole 81 (or 72) limitation key pillar 71 (or 82), accordingly even when working as
When key pillar is very long, when pressing marking keys 91 (such as key convex closure) on control panel 9, key pillar be there will not be very
Big skew, is limited in always in guide and limit hole, so that marking keys 91 can pass through key column when pressing keys mark 91
Son is accurately pressed on wiring board key 22, to ensure that the reliability of product work, has been well solved in existing scheme
Because key pillar is too long, key pillar be easy skew and the problem of lead to keys deactivation.
Further, as shown in Figure 17 and Figure 18, case assembly is controlled further include: control panel 9 is installed in key fixing seat
7 and the top of key support 8, wiring board 2 be equipped with wiring board key 22, control panel 9 is equipped with corresponding with wiring board key 22
Marking keys 91, key pillar 71 (or 82) between marking keys 91 and wiring board key 22, pressed by marking keys 91
Key pillar 71 (or 82) pressing wiring board key 22 is able to drive when pressure.
By the marking keys 91 on pressing control panel 9, the key on key fixing seat 7 (or key support 8) is driven
Pillar 71 (or 82) is mobile, and pressing force is passed to the wiring board key 22 on wiring board 2 by key pillar 71 (or 82), thus real
Now to the control of product；Specifically, marking keys 91 are to have tagged function key, such as cooking, mark of cooking congee, in order to improve
Feel is pressed, is usually arranged as improving the convex closure of pressing feel at marking keys 91, certainly, marking keys 91 can not also be raised
Come, can specifically be rationally designed according to actual product situation.
Preferably, as shown in Figure 17 and Figure 18, key fixing seat 7 and key support 8 are installed in the medial area of light guide ring 1
Domain.
In a specific embodiment of the utility model, close to light guide ring mesoporous inner sidewall 13 on assist side bracket 3
Position, and respectively design a light-blocking muscle 32 close to 11 position of convex closure of dress lamp of light guide ring 1, the light-blocking muscle 32 and light guide ring mesoporous
The distance D1 of inner sidewall 13 is less than 1mm, i.e. D1 < 1mm, and after the assembly is completed, the height of the light-blocking muscle 32 is higher than 1 bottom of light guide ring
Lamppost top surface, i.e. H2 > 0, the light-blocking muscle 32 because with light guide ring mesoporous inner sidewall 13 apart from small, so even if having light emission to leaded light
For circle 1 with the gap of the light-blocking muscle 32, user is also difficult to see that the light of position at this, that is, is unlikely to from control box 6 and knob 4
Gap in see that light guide ring 1 has the position of lamp excessively bright；In addition PET film a part of volume 62 at the top of box 6 will be controlled to dress knob 4
Knob hole 61 in, the height H3 for being rolled onto the film 62 in knob hole 61 is greater than 1mm, i.e. H3 > 1mm, and this is involved in knob hole 61
Film 62 need to be printed as nontransparent color, because in control overlay film volume 62 of box 6 one section of knob holes 61 to control box 6, and should
Film 62 has been printed as nontransparent color, so for 14 light when passing through control 6 top of box, light can will control box at the top of light guide ring
6 top PET film 62 do not print one punctuate it is bright, because (film 62 has been printed as nontransparent one section of PET film 62 in knob hole 61
Color) blocking, light can not from control 6 knob hole 61 of box side wall be mapped to control box 6 and knob 4 gap in.
Above scheme eliminates the patch reflective membrane 62 or Tu Fanguang of 1 inside of light guide ring under the premise of meeting properties of product
Paint, reduces product cost, improves the production efficiency of product, and the program solve very well controlled in existing scheme box 6 with
There is the problem of light between knob 4, above scheme, which only controls 6 top of box, which encloses the part that do not print around knob 4 one, can be lit, and control
Box 6 processed with it is very weak without light or light in the gap of knob 4, to solve the problems, such as that light is non-uniform in existing scheme,
Improve the display effect of product.
The embodiment of the utility model third aspect provides a kind of household electrical appliance, the control including such as above-mentioned any embodiment
Case assembly processed, and the beneficial effect of the control case assembly with any of the above-described embodiment, details are not described herein.
In one embodiment of the utility model, the household electrical appliance are electric pressure cooking saucepan, certain household electrical appliance
It can be other household electrical appliance such as electric cooker, soy bean milk making machine, washing machine with control case assembly etc. namely above-mentioned control box group
Part is widely used in various small household electrical appliances, should all be in the utility model without departing from the design concept of the utility model
Protection scope in.
In conclusion control case assembly provided by the embodiment of the utility model, by being arranged two at the top of light guide ring convex closure
A inclined-plane, and there are two the angles in direction on each inclined-plane on two inclined-planes, without enterprising in light guide ring mesoporous inner sidewall
Row spray treatment or patch reflective sheeting, it will be able to realize and return the light back reflected from light guide ring convex closure top bevel
Inside light guide ring, and multiple tracks reflection is carried out in light guide ring, light is reflected on the rack gear of light guide ring bottom, then rack inclined
It is reflected at the top of light guide ring, so that being lit at the top of light guide ring, when reducing material and cost of labor, and improving batch production
The production efficiency of product.
In the description of the utility model, it is to be understood that the orientation or positional relationship of the instructions such as term " on ", "lower" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or unit must have specific direction, be constructed and operated in a specific orientation, it is thus impossible to understand
For limitations of the present invention.
In the description of the present invention, unless otherwise clearly defined and limited, term " connection " etc. should all do broad sense
Understand, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection, or electrical connection；It can be with
It is to be connected directly, it can also be indirectly connected through an intermediary.It for the ordinary skill in the art, can be according to tool
Body situation understands the concrete meaning of above-mentioned term in the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model
In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment
Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (15)
1. a kind of light guide ring is used for household electrical appliance, which is characterized in that
The light guide ring includes cricoid ontology and multiple convex closures for extending from the ontology towards outside, and the convex closure bottom is set
There is the lamp hole for installing electroluminescent lamp.
2. light guide ring according to claim 1, which is characterized in that
Inclined-plane there are two setting at the top of the convex closure, two inclined-planes surround a groove.
3. light guide ring according to claim 2, which is characterized in that
The angle of the parallel lines of the clamp on two inclined-planes and the light guide ring central axis or the light guide ring central axis is at 30 °
Within the scope of~60 °, the clamp on two inclined-planes and the parallel lines institute of the light guide ring central axis or the light guide ring central axis
The angle of determining plane and each inclined-plane is within the scope of 30 °~60 °.
4. light guide ring according to claim 3, which is characterized in that
The clamp on two inclined-planes is done on the face perpendicular to the light guide ring central axis to be projected the projection line formed and is located at
The distance of the lamp hole central axis below the clamp and the diameter ratio of the electroluminescent lamp are in 0~2/3 range.
5. light guide ring according to claim 3, which is characterized in that
The multiple convex closure being provided at circumferentially spaced along the ontology, be all provided at the top of each convex closure there are two it is described tiltedly
Face, the extended line of the clamp on two inclined-planes intersect at the same point on the light guide ring central axis.
6. light guide ring according to claim 3, which is characterized in that
Two inclined-planes are symmetrical set about the clamp on two inclined-planes.
7. the light guide ring according to any one of claim 2 to 6, which is characterized in that
The bottom of the ontology is equipped with rack gear, and the highest point position on the inclined-plane is higher than the height of the tooth of rack gear highest point position
Degree.
8. light guide ring according to claim 7, which is characterized in that
The multiple convex closure being provided at circumferentially spaced along the ontology, the tooth of the rack gear are circumferentially divided into and the numbers such as the convex closure
The multiple groups measured and be correspondingly arranged, the height of every group of tooth by the convex closure corresponding with this group of tooth the two laterally closer convex closures
The position of the lamp hole central axis gradually rises, and the highest point position on the inclined-plane at the top of the convex closure is higher than this group of tooth
In farthest away from the position of the lamp hole central axis tooth height.
9. a kind of control case assembly characterized by comprising
Control box rear cover；
Wiring board covers after being installed in the control box, and the wiring board is equipped with electroluminescent lamp；
Such as light guide ring described in any item of the claim 1 to 8, the corresponding lamp hole for being inserted into the light guide ring of the electroluminescent lamp
In；
Box is controlled, be installed at the top of the light guide ring and is fixedly connected with the control box rear cover, is offered on the control box
Knob hole；With
Knob is installed at the knob hole.
10. control case assembly according to claim 9, which is characterized in that further include:
Route board mount is installed on the wiring board, and the route board mount is equipped with through-hole corresponding with the electroluminescent lamp,
The light guide ring is installed on the route board mount, and the electroluminescent lamp is inserted into the lamp hole after passing through the through-hole.
11. control case assembly according to claim 10, which is characterized in that
The route board mount is equipped with light-blocking muscle, and the light-blocking muscle is arranged close to the convex closure of the light guide ring and is located at described lead
The inside of aperture mesoporous inner sidewall, the distance between the light-blocking muscle and the light guide ring mesoporous inner sidewall are less than 1mm, and described
The height of light-blocking muscle is higher than the top surface of the electroluminescent lamp.
12. control case assembly according to claim 9, which is characterized in that
The top surface of the control box is covered with film, and the film extends into the knob hole by the top surface of the control box
At top sidewall, the height of the film extended at the top sidewall of the knob hole is greater than 1mm and is printed as opaque face
Color.
13. the control case assembly according to any one of claim 9 to 12, which is characterized in that further include:
Key fixing seat is fixed on the wiring board；With
Key support is installed in the key fixing seat, and one in the key fixing seat and the key support is upper to be filled
Equipped with key pillar, another be equipped with the guide and limit hole passed through for the key pillar.
14. control case assembly according to claim 13, which is characterized in that further include:
Control panel, is installed at the top of the key fixing seat and the key support, and the wiring board is pressed equipped with wiring board
Key, the control panel are equipped with marking keys corresponding with the wiring board key, and the key pillar is located at the key
Between mark and the wiring board key, the marking keys are able to drive the key pillar and press the route when being pressed
Plate key.
15. a kind of household electrical appliance, which is characterized in that including the control case assembly as described in any one of claim 9 to 14.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821266937.3U CN208722796U (en) | 2018-08-07 | 2018-08-07 | Light guide ring, control case assembly and household electrical appliance |
| PCT/CN2019/080817 WO2020029593A1 (en) | 2018-08-07 | 2019-04-01 | Light guide ring, control box assembly, and household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821266937.3U CN208722796U (en) | 2018-08-07 | 2018-08-07 | Light guide ring, control case assembly and household electrical appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208722796U true CN208722796U (en) | 2019-04-09 |
Family
ID=65976553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821266937.3U Active CN208722796U (en) | 2018-08-07 | 2018-08-07 | Light guide ring, control case assembly and household electrical appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208722796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020029593A1 (en) * | 2018-08-07 | 2020-02-13 | 佛山市顺德区美的电热电器制造有限公司 | Light guide ring, control box assembly, and household appliance |
-
2018
- 2018-08-07 CN CN201821266937.3U patent/CN208722796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020029593A1 (en) * | 2018-08-07 | 2020-02-13 | 佛山市顺德区美的电热电器制造有限公司 | Light guide ring, control box assembly, and household appliance |
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