CN207196551U

CN207196551U - The luminous knob in the full visual angle of gas furnace

Info

Publication number: CN207196551U
Application number: CN201721139344.6U
Authority: CN
Inventors: 黄俊诚
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-09-06
Filing date: 2017-09-06
Publication date: 2018-04-06
Anticipated expiration: 2027-09-06

Abstract

The utility model is a kind of luminous knob in full visual angle of gas furnace, includes base, circuit board and the light guide ring of the gas valve rotating shaft outside for being separately fixed at stove panel, and one is fixed in the rotating shaft and is able to the knob lid of rotation adjustment firepower size.Wherein, circuit board periphery is provided with the LED of most visual angle arrangements complete in a ring, the controller of firepower high low signal can be received provided with a power switch and one by inside enclosing, when knob lid rotates adjustment firepower, power switch power-on, enable the controller on circuit board to make most LEDs be lighted with corresponding number according to firepower high low signal, firepower size is recognized by LED amount of luminescence with allowing user's instinct type, reaches the effect of easy to use.

Description

The luminous knob in the full visual angle of gas furnace

Technical field

A kind of spare part related to gas furnace is the utility model is related to, is particularly related to for adjusting firepower for user The luminous knob of size, when user's turn knob lid, the most LEDs that can be looped around by full visual angle around knob lid Amount of luminescence, recognize firepower size instinct type.

Background technology

Conventional gas stove is that the thermocouple magnetic valve for being electrically connected to gas valve is provided with fire door, when user utilizes Knob lights stove fire, makes to open gas valve after thermocouple magnetic valve is heated, and then after enabling gas valve normal operation, recycles Knob is rotated to adjust the aperture of gas valve, and then adjusts firepower size.

Wherein, do not have the instruction of firepower size, and loss of ignition or thermocouple electromagnetism for adjusting the knob of firepower Valve is heated not enough and when can not open gas valve, user can only croucs observation, or the position by knob and angle Substantially to assess firepower, this mode that can only rely on experience to judge firepower size or whether stove fire is lighted, not only not side Just it is and inaccurate, therefore there are many dealers to devise luminous knob for this missing, to user be allowed to pass through The knob that can be lighted recognizes firepower size.

Allow user to recognize firepower size by luminous knob, need to solve the problems, such as to wrap in the design of knob Include：Firepower size how is detected, and how to allow knob to provide different instructions with firepower size.In existing skill In art, the Patent Case such as CN205162843U, CN203200560U, CN201016484Y, CN204100314U, though disclose respectively The similar knob structure with luminous indicating lamp, but wherein, CN205162843U ray structure is easily sent out in knob The problem of raw circuit torsional fracture；CN203200560U mainly shows whether the power supply of electric iron turns on, and is not suitable for and combustion gas On stove.Although CN201016484Y, CN204100314U are applied on the knob of stove, but CN204100314U indicator lamp Mainly whether start in display knob, and non-display stove fire size；And CN201016484Y is set for power supply conducting structure Meter, it is still no to solve the problems, such as to show stove fire size.

Inventor also once devises many solutions, including (TaiWan, China patent) regarding to the issue above M531555, CN205897241U, (TaiWan, China patent) M537645, CN206094187U, (TaiWan, China patent) M537647, CN206257705U, (TaiWan, China patent) M547080 etc., the technology contents of the invention described above people design are through reality After border is implemented, though detecting firepower size can be reached, and knob is allowed to provide the work(of different instructions with firepower size Can, but allowing knob to be provided with firepower size in the function of different instructions, if user can be allowed more intuitively to recognize fire Power size, it will can greatly improve and use upper convenience.

In addition, user using gas furnace boil food materials when, often additionally a timer is used, by using in terms of this When device prompting function control cooking time, if can added on knob set a timer to be boiled for user's setting when Between, when setting time has arrived later closing gas valve, and light prompting user is sent, can greatly improve gas furnace makes The convenience used.

Utility model content

The purpose of this utility model is a kind of luminous knob in the full visual angle for providing gas furnace, mainly sets most The LED that can be lighted with firepower size with corresponding number, most LEDs full visual angle arrangement in a ring, allows user can To recognize firepower size by LED amount of luminescence instinct type, reach the effect of easy to use.

To reach above-mentioned purpose, the utility model passes through a kind of luminous knob in full visual angle of gas furnace, the gas furnace With a gas valve rotating shaft for being revealed in panel mounting hole center, the luminous knob includes：One be fixed on the panel top surface or Bottom surface is arranged on leading for circuit board relative to the base of rotating shaft outside position, a circuit board being fixed on base, one The ring of light, and one be arranged on above the light guide ring or inner peripheral and fixed with rotating shaft and can rotate the rotation of adjustment firepower size Button lid；It is characterized in that：

The LED that the outer shroud of the circuit board arranges in light guide ring lower position provided with most visual angles complete in a ring, and Position is enclosed in the LED of the majority can receive the controller of firepower high low signal, the leaded light provided with a power switch and one Ring in a ring and is covered in the top of most LEDs, most LEDs is appeared light upwards by the light guide ring, the power supply Switch being capable of power-on, the control on the circuit board when knob lid and rotating shaft rotarily open gas valve and adjust firepower size Device can make most LEDs be flashed with the luminous long bright or dynamic of corresponding quantity according to firepower high low signal.

During implementation, the controller signals connection one of the circuit board is fixed on the sensor on the gas pipe of gas furnace, should Gas flow or pressure in sensor energy detecting gas pipe, form corresponding firepower high low signal and transmit to the control Device.

During implementation, the power switch, which includes one, to be fixed magnetic switch on circuit boards and one is fixed on the knob lid It is upper can synchronous rotary the first magnet, first magnet when the knob lid rotates to closing gas valve with the magnetic switch pair Position, magnetic switch is set to close power supply；First magnet misplaces when knob lid rotates to and opens gas valve with the magnetic switch, makes Magnetic switch power-on is simultaneously supplied to circuit board.

During implementation, the magnetic switch is an open ended magnetic reed tube, and the base is fixed with one in the relative position of the magnetic reed tube Constant the second magnet that magnetic action is produced to magnetic reed tube；First magnet rotates to and the magnetic reed tube and the second magnetic in knob lid When iron aligns, the magnetic action of the first magnet and the second magnet is cancelled out each other, and the magnetic reed tube is kept open circuit and is closed power supply；Should First magnet when knob lid is rotated to the magnetic reed tube and the dislocation of the second magnet, make by the magnetic that the magnetic reed tube receives the second magnet With and turn on and power-on.

During implementation, the light guide ring relative to a wherein LEDs top position be provided with one can show figure, word, The decorated dormer of power supply instruction or abnormal warning cresset.

During implementation, the light guide ring is provided with a transparent window in the top position in the wherein gap that most LEDs are formed, should Position of the circuit board below relative to the transparent window is provided with one and sets key and light-emitting nixie tube or backlit display screen by the time The timing module formed, wherein, time of the timing module set key as across transparent window light change can be received and The light of shake-up occasionally switchs, and the timing module electrically connects with the controller, and makes controller control all at the end of timing Or part LED sends warning light.

During implementation, the controller electrically connects with the thermocouple magnetic valve positioned at gas furnace fire door, the timing module timing At the end of a backward voltage can be sent by the controller, make thermocouple closed electromagnetic valve, and then it is flame-out to close gas valve, And the controller receive firepower shutdown signal after all or part of LED can be made to send warning light.

During implementation, the base is in disc-shaped and is fixed on the top surface of stove panel, and its center is provided with one and passed for rotating shaft Perforation, be around equipped with the first convex edge projected upwards, the circuit board be fixed on first convex edge in enclose, the leaded light Ring from top to bottom clamping and overlay masking is above first convex edge, and the inner edge of the light guide ring is extended to below knob lid.

During implementation, the base is cylindrical and is fixed on the top surface of stove panel, and its center is provided with one and passed for rotating shaft Perforation, be around equipped with the second convex edge projected upwards, the circuit board, which is set up, to be fixed on above second convex edge, and the rotation Button lid periphery extends downwardly the annular covering for being shielded in the second convex edge outside, and the inner peripheral of the annular covering top surface is provided with thoroughly Light portion, the transmittance section is located above light guide ring, and when most LEDs light, light passes through saturating after the light guide ring and the transmittance section Go out.

During implementation, the stove panel is the glass panel of printing opacity, and the base is arranged on below stove panel, and is upwardly extended One is fixed on the holding section enclosed in mounting hole, is passed above the holding section provided with a water-proof rubber sleeve for rotating shaft, and knob lid covers Above the water-proof rubber sleeve；The circuit board and light guide ring are arranged between base and stove panel, when most LEDs light, Light by appearing upwards after the light guide ring and stove panel.

Compared to prior art, in the luminous knob in full visual angle of the utility model gas furnace, most LEDs take annular Full visual angle arrangement, and by the Rational Arrangement Combination Design of base, circuit board and light guide ring, enable most LEDs with Firepower size to light with corresponding number, allow user can by LED amount of luminescence instinct type recognize firepower size, reach Into it is easy to use the effect of；In addition, be provided with timing time setting key and light-emitting nixie tube or backlit display screen it is specific Embodiment, user is not only allowed without using timer in addition, moreover it is possible to send warning light by most LEDs and cooked to remind The time is boiled, reaches the effect of easy to use.

Based on the following technological means of the present utility model, include suitable for specific embodiment of the present utility model, and match somebody with somebody Schema explanation is closed as after：

Brief description of the drawings

Fig. 1 is set location schematic diagram of the present utility model.

Fig. 2 is the structural upright exploded view of the utility model first embodiment.

Fig. 3 is Fig. 2 combination diagram.

Fig. 4 is the schematic diagram that the utility model power switch closes power supply.

Fig. 5 is the schematic diagram of the utility model power switch power-on.

Fig. 6 is that the utility model knob covers position view at 0 degree.

Fig. 7 is that the utility model knob covers position view at 90 degree.

Fig. 8 is that the utility model knob covers position view at 175 degree.

Fig. 9 is that the utility model knob covers position view at 40 degree.

Figure 10 is the schematic diagram that the utility model shows figure, word or power supply instruction.

Figure 11 is the three-dimensional exploded view of the utility model second embodiment.

Figure 12 is the combination diagram of the utility model second embodiment.

Figure 13 is the embodiment schematic diagram of the utility model timing module.

Figure 14 is the three-dimensional exploded view of the utility model 3rd embodiment.

Figure 15 is the combination diagram of the utility model 3rd embodiment.

Figure 16 is the three-dimensional exploded view of the utility model fourth embodiment.

Figure 17 is the combination diagram of the utility model fourth embodiment.

Description of reference numerals：100- gas furnaces；101- panels；102- mounting holes；103- gas valves；104- rotating shafts； 105- gas pipes；106- sensors；107- thermocouple magnetic valves；10- bases；11- perforates；The convex edges of 12- first；13- second is convex Edge；14- holding sections；15- water-proof rubber sleeves；20- circuit boards；21-LED；22- power switches；221- magnetic switch；The magnetic of 222- first Iron；The magnet of 223- second；23- controllers；24- light-emitting nixie tubes or backlit display screen；The 25- times set key；30- light guide rings； 31- decorated dormers；32- transparent windows；40- knob lids；41- annular coverings；42- transmittance sections.

Embodiment

As shown in figure 1, full visual angle of the present utility model lights, knob is pressed on the panel 101 loaded on gas furnace 100, the combustion The panel 101 of heating stove 100 has a mounting hole 102, and the center of mounting hole 102 has one to be revealed on panel 101 and can control The rotating shaft 104 of the aperture of gas valve 103, the gas valve 103 connect with gas pipe 105, and the gas pipe 105 is provided with a sensor 106, when the rotating shaft 104 rotarily opens gas valve 103, gas flow or pressure in the energy detecting gas of sensor 106 pipe 105 Power, and form corresponding firepower high low signal output.

In Fig. 1, the fire door of the gas furnace 100 is additionally provided with a thermocouple magnetic valve 107, and the thermocouple magnetic valve 107 exists Opened after being heated to proper temperature, enable the normal work of gas valve 103；If thermocouple magnetic valve 107 is because of heated deficiency or abnormal Closed when flame-out, can be accordingly turned off gas valve 103.This thermocouple magnetic valve 107 is the conventional safe machine of gas furnace 100 System, is not repeated separately herein.

As shown in Fig. 2 luminous knob of the present utility model includes：One is fixed on the top surface of panel 101 or bottom surface is relative The circuit board 20, one that base 10, one in the outside position of rotating shaft 104 is fixed on base 10 is arranged on above circuit board 20 Light guide ring 30, and one be fixed in the rotating shaft 104 and can rotate and adjust relative to the base 10, circuit board 20 and light guide ring 30 The knob lid 40 of whole firepower size.

Fig. 2 and Fig. 3 is referred to, the base 10 is disclosed in figure exemplified by being fixed on the top surface of panel 101, and the base 10 is in Disc-shaped is fixed on the top surface of stove panel 101, and its center is provided with the perforation 11 passed for rotating shaft 104, be around equipped with to First convex edge 12 of upper protrusion, the circuit board 20 are fixed on the interior of first convex edge 12 and enclosed.In diagram, outside the circuit board 20 The LED21 of most visual angle arrangements complete in a ring is equipped with, and circuit board 20 encloses position provided with one in the LED21 of most Power switch 22, and one can receive sensor as aforementioned 106 output firepower high low signal controller 23.

Foregoing light guide ring 30 in a ring and is covered in the top of most LEDs 21, and from top to bottom clamping is simultaneously for light guide ring 30 And overlay masking enables most LEDs 21 to appear light upwards by the light guide ring 30 above first convex edge 12；Should The inner edge of light guide ring 30 extends to the lower section of knob lid 40, when gas furnace cooked food, by light guide ring 30 and knob lid 40 Masking, oil stain or water projection can be avoided to circuit board 20, reach the function of waterproof；In diagram, the light guide ring 30 is relative The decoration of figure, word, power supply instruction or abnormal warning cresset can be shown by being provided with one in the top position of a wherein LEDs 21 Window 31.In addition, the illumination mode of most LEDs can be set as length it is bright, or dynamic flash, to strengthen luminescence display Ability.

Aforementioned power source switch 22 is fixed on the knob including a magnetic switch 221 and one being fixed on circuit board 20 First magnet 222 of energy synchronous rotary on lid 40；As shown in Figures 4 and 5, first magnet 222 rotates to pass in knob lid 40 Aligned when closing gas valve with the magnetic switch 221, by magnetic action of first magnet 222 to the magnetic switch 221, magnetic can be made Property switch 221 close power supplys；When first magnet 222 in knob lid 40 rotate to open gas valve when with the magnetic switch 221 Dislocation, makes the power-on of magnetic switch 221, required power supply is operated to supply circuit board 20.

In order to facilitate manufacturing and installing, above-mentioned magnetic switch 221 uses general common open ended magnetic reed tube, and the bottom of at Seat 10 is fixed with one relative to the position of magnetic switch 221 (magnetic reed tube) and constant the of magnetic action is produced to magnetic switch 221 Two magnet 223, make the magnetic switch 221 without other external force act under, it is constant receive the second magnet 223 magnetic action and protect Hold conducting state.

When first magnet 222 when knob lid 40 rotates to closing gas valve with the magnet of magnetic switch 221 and second 223 contrapositions, the magnetic action of the first magnet 222 and the second magnet 223 cancels out each other, make the magnetic switch 221 keep opening a way and Close power supply；When first magnet 222 rotarily opens gas valve in knob lid 40, with the magnet 223 of magnetic switch 221 and second During dislocation, the magnetic switch 221 is to return to the magnetic action of the second magnet 223 of constant receiving and turn on the shape of simultaneously power-on State.That is, when as long as knob lid 40 is rotated from the closed position, circuit board 20 can obtain the power supply needed for running.

In this way, when knob lid 40 and rotating shaft 104 rotarily open gas valve 103 and adjust firepower size, the power switch 22 i.e. power-on, the controller 23 on the circuit board 20 is set to receive the firepower high low signal of the output of sensor 106, and Most LEDs 21 are made to be lighted with corresponding quantity.

Such as：It is closed mode at 0 degree that Fig. 6, which discloses knob lid 40, and now the power switch 22 of circuit board 20 closes electricity Source, LED21 keep OFF state；When Fig. 7 announcement knobs lid 40 rotates to 90 degree, firepower is most big fire, now LED21 all lights； It is inner ring small fire that Fig. 8, which is disclosed when knob lid 40 rotates to 175 degree, and now only single LEDs 21 are shinny；Fig. 9 discloses knob lid 40 be moderate heat fire less than normal when rotating to 40 degree, and the LED21 of only approximately less than half is shinny；Figure 10 then discloses knob lid 40 When rotarily opening, wherein a LEDs 21 show figure, word or power supply instruction by decorated dormer 31.

In this way, when knob lid 40 and rotating shaft 104 rotarily open gas valve 103, firepower is bigger, and quantity luminous LED21 is got over It is more；Firepower is smaller, and quantity luminous LED21 is fewer.As it was previously stated, mode luminous LED21 can be set as growing it is bright, either Dynamic flashes, to strengthen luminescence display ability.Because most LEDs 21 take annular full visual angle arrangement, and by base 10, The Rational Arrangement Combination Design of circuit board 20 and light guide ring 30, allow user can by LED amount of luminescence instinct type recognize Firepower size, reaches the effect of easy to use.

Second embodiment of the present utility model as shown in FIG. 11 and 12, present embodiment and foregoing implementation Example difference be in：The light guide ring 30 is transparent provided with one in the top position in the wherein gap relative to most LEDs 21 Form 32, the circuit board 20 are further provided with one in the lower position relative to transparent window 32 and electrically connected with the controller 23 Timing module, it is illustrated that in the timing module be by one group of light-emitting nixie tube or backlit display screen 24 and two times setting key 25 institute Composition, wherein, the light that the time sets key 25 and touched to receive light change occasionally switchs, and allows user can be across transparent window 32 contact transfer times set key 25 and set cooking time, and in display on light-emitting nixie tube or backlit display screen 24 and meter reciprocal When；At the end of light-emitting nixie tube or backlit display screen 24 show timing, the controller 23 controls all or part of LED21 hairs Go out warning light, such as flicker or other color lights, to remind user's cooking time enough.

As shown in figure 13, during implementation, the controller 23 is further electric with the foregoing thermocouple positioned at the fire door of gas furnace 100 Magnet valve 107 electrically connects, and at the end of the timing module timing, sends a backward voltage by the controller 23 and makes the thermocouple electromagnetism Valve 107 is closed, so that gas valve 103 is closed and stopped working；Now, controller 23 receives the firepower of the output of sensor 106 Signal is closed mode, but the power switch 22 of circuit board 20 stills remain in the state (ginseng Fig. 5) of power-on, therefore is controlled Device 23 can be with as it was previously stated, make all or part of LED21 send warning light, to have reminded the cooking time of its setting of user Through terminating.

The 3rd embodiment of the present utility model as shown in Figure 14 and Figure 15, the present embodiment difference be in：The bottom The 10 cylindrical top surfaces for being fixed on stove panel 101 of seat, its center are provided with a perforation 11 passed for rotating shaft 104, surrounding ring Provided with the second convex edge 13 projected upwards, the circuit board 20, which is set up, is fixed on the top of the second convex edge 13, and the knob lid 40 Periphery extends downwardly the annular covering 41 for being shielded in the outside of the second convex edge 13, and the inner peripheral of the top surface of annular covering 41 is provided with Transmittance section 42, the transmittance section 42 are located at the top of light guide ring 30, when most LEDs 21 is lighted, light by the light guide ring 30 and Appeared behind the transmittance section 42, form the luminous aspect in the outside of knob lid 40.

4th embodiment of the present utility model as shown in FIG. 16 and 17, the present embodiment difference be in：The stove Has the glass panel that panel 101 is printing opacity, the base 10 is arranged on the lower section of stove panel 101, and upwardly extends one and be fixed on peace The holding section 14 enclosed in dress hole 102, the top of holding section 14 are provided with a water-proof rubber sleeve 15 and passed for rotating shaft 104, and knob lid 40 hides Cover above water-proof rubber sleeve 15, the effect of reaching waterproof.In addition, the circuit board 20 and light guide ring 30 are arranged on base and stove face Between plate 101, when most LEDs 21 is lighted, light by appearing upwards after the light guide ring 30 and stove panel 101.

It is described above to be merely exemplary for the utility model, and nonrestrictive, those of ordinary skill in the art Understand, in the case where not departing from the spirit and scope that claim is limited, can many modifications may be made, change or it is equivalent, but Fall within the scope of protection of the utility model.

Claims

The knob 1. a kind of full visual angle of gas furnace lights, the gas furnace have a combustion gas for being revealed in panel mounting hole center Valve rotating shaft, the luminous knob include：One be fixed on the panel top surface or bottom surface relative to rotating shaft outside position base, one The light guide ring that the circuit board that is fixed on base, one are arranged on circuit board, and one be arranged on it is above the light guide ring or interior Periphery and fixed with rotating shaft and can rotate adjustment firepower size knob lid；It is characterized in that：

The outer shroud of the circuit board is provided with the LED of most visual angle arrangements complete in a ring in light guide ring lower position, and more at this Position is enclosed in the LED of several can receive the controller of firepower high low signal provided with a power switch and one, and the light guide ring is in Annular is simultaneously covered in the top of most LEDs, most LEDs is appeared light upwards by the light guide ring, the power switch Can when knob lid and rotating shaft rotarily open gas valve and adjust firepower size power-on, the controller energy on the circuit board Most LEDs are made to be flashed with the luminous long bright or dynamic of corresponding quantity according to firepower high low signal.
The knob 2. the full visual angle of gas furnace as claimed in claim 1 lights, it is characterised in that：The controller signals of the circuit board Connection one is fixed on sensor on the gas pipe of gas furnace, gas flow or pressure in the sensor energy detecting gas pipe Power, form corresponding firepower high low signal and transmit to the controller.
The knob 3. the full visual angle of gas furnace as claimed in claim 1 lights, it is characterised in that：The power switch, which includes one, to be fixed Magnetic switch and one on circuit boards is fixed on the first magnet that the knob covers energy synchronous rotary, and first magnet exists Aligned when the knob lid rotates to closing gas valve with the magnetic switch, magnetic switch is closed power supply；First magnet is revolving Button lid is rotated to and misplaced when opening gas valve with the magnetic switch, is made magnetic switch power-on and is supplied to circuit board.
The knob 4. the full visual angle of gas furnace as claimed in claim 3 lights, it is characterised in that：The magnetic switch is an open ended Magnetic reed tube, the base are fixed with constant second magnet that magnetic action is produced to magnetic reed tube in the relative position of the magnetic reed tube； First magnet when knob lid is rotated to the magnetic reed tube and the contraposition of the second magnet, make by the magnetic of the first magnet and the second magnet With cancelling out each other, the magnetic reed tube is set to keep open circuit and close power supply；First magnet in knob lid rotate to the magnetic reed tube and When second magnet misplaces, the magnetic reed tube receives the magnetic action of the second magnet and turns on simultaneously power-on.
The knob 5. the full visual angle of gas furnace as claimed in claim 1 lights, it is characterised in that：The light guide ring is relative to wherein The top position of one LEDs, which is provided with one, can show the decorated dormer of figure, word, power supply instruction or abnormal warning cresset.
The knob 6. the full visual angle of gas furnace as claimed in claim 1 lights, it is characterised in that：The light guide ring is in most LEDs The top position in the wherein gap formed is provided with a transparent window, position of the circuit board below relative to the transparent window Provided with a timing module being made up of time setting key and light-emitting nixie tube or backlit display screen, wherein, the timing module Time sets key and changes the light touched occasionally switch, and the timing module and the control as that can receive light across transparent window Device electrically connects, and makes controller control all or part of LED to send warning light at the end of timing.
The knob 7. the full visual angle of gas furnace as claimed in claim 6 lights, it is characterised in that：The controller is with being located at gas furnace Have the thermocouple magnetic valve electrical connection of fire door, it is reversely electric that one can be sent at the end of the timing module timing by the controller Pressure, makes thermocouple closed electromagnetic valve, and then it is flame-out to close gas valve, and the controller receives energy after firepower shutdown signal All or part of LED is enough made to send warning light.
The knob 8. the full visual angle of gas furnace as any one of claim 1 to 7 lights, it is characterised in that：The base is in Disc-shaped and the top surface for being fixed on stove panel, its center are provided with a perforation passed for rotating shaft, are around equipped with prominent upwards The first convex edge gone out, the circuit board be fixed on first convex edge in enclose, the light guide ring from top to bottom clamping and covers It is shielded in above first convex edge, and the inner edge of the light guide ring is extended to below knob lid.
The knob 9. the full visual angle of gas furnace as any one of claim 1 to 7 lights, it is characterised in that：The base is in Cylindric and be fixed on the top surface of stove panel, its center is provided with a perforation passed for rotating shaft, is around equipped with prominent upwards The second convex edge gone out, the circuit board, which is set up, to be fixed on above second convex edge, and the knob lid periphery has extended downwardly masking Annular covering in the second convex edge outside, the inner peripheral of the annular covering top surface are provided with transmittance section, and the transmittance section is positioned at leaded light Above ring, when most LEDs light, light after the light guide ring and the transmittance section by appearing.
The knob 10. the full visual angle of gas furnace as any one of claim 1 to 7 lights, it is characterised in that：The stove face Plate is the glass panel of printing opacity, and the base is arranged on below stove panel, and is upwardly extended one and be fixed on the card enclosed in mounting hole Portion is held, is passed above the holding section provided with a water-proof rubber sleeve for rotating shaft, and knob lid is shielded in above the water-proof rubber sleeve；The circuit Plate and light guide ring are arranged between base and stove panel, and when most LEDs light, light passes through the light guide ring and stove face Appeared upwards after plate.