CN208536063U - High-temperature cooking device - Google Patents

Abstract

The utility model discloses a kind of high-temperature cooking devices, the high-temperature cooking device includes cooking cavity (100), the periphery wall of the cooking cavity (100) offers perforative furnace lamp installing port, the furnace lamp installing port is embedded with the furnace lamp mounting box (8) for sealing fixed illumination furnace lamp, and the furnace lamp mounting box (8) is removably installed on the periphery wall.As it can be seen that the high-temperature cooking device of the utility model uses dismountable furnace lamp mounting box so that illumination furnace lamp is fixedly mounted, so that the mounting structure of illumination furnace lamp is more easy, convenient for safeguarding, and shape is more clean and tidy and beautiful.

Description

High-temperature cooking device

Technical field

The utility model relates to household appliance technical fields, and in particular, to a kind of high-temperature cooking device.

Background technique

The high-temperature cooking device of existing household mainly includes oven, steaming and baking box or micro-wave oven etc..These high-temperature cookings Setting illumination furnace lamp is typically necessary in the cooking cavity of device to be illuminated, but due in cooking cavity hot environment it is special Property, the generally existing structure of existing illumination furnace modulated structure is complex, effect is not good enough yet and manufactures the problems such as inconvenient.Such as often Halogen lamp, due to the light yellowing of halogen lamp, when impinging upon on food, food only shows the appearance of yellow, so that The true colors of food in cooking cavity cannot really embody, thus cause user be difficult to judge food culinary art quality and Effect, and can not determine whether to take out food.It is fixed in addition, illumination furnace lamp usually passes through screw or fixed glue etc., so that Furnace lamp installation more inconvenience is illuminated, and not easy to disassemble, aesthetics is poor.

In addition, the particularity of the high-temperature cooking chamber due to high-temperature cooking device, cause existing illumination furnace lamp be easy by The influence of high temperature, and the heat dissipation effect for illuminating furnace lamp is poor, affects the service life of illuminator.

Utility model content

The purpose of the utility model is to provide a kind of high-temperature cooking device, the installations of the illumination furnace lamp of the high-temperature cooking device Effect is more preferable, and the service life is longer.

To achieve the goals above, the utility model provides a kind of high-temperature cooking device, and the high-temperature cooking device includes Cooking cavity, the periphery wall of the cooking cavity offer perforative furnace lamp installing port, and the furnace lamp installing port is embedded with and is used for The furnace lamp mounting box of the fixed illumination furnace lamp of sealing, the furnace lamp mounting box are removably installed on the periphery wall.

Preferably, the furnace lamp mounting box includes the transparent interior box cover and opaque outer box cover mutually fastened, described transparent Interior box cover fitting is arranged on the inner wall of the cooking cavity.

Preferably, the transparent interior box cover is Transparent Plastic Box Lid resistant to high temperature or glass box cover, the opaque outer box Lid is metal box-lid.

Preferably, the transparent interior box cover include inner box end cap and from the end face of the inner box end cap stretch out embedded portion, The end face of the inner box end cap is bonded the inner wall of the cooking cavity, and embedded portion's insertion is installed on the furnace lamp peace In dress mouth and protruding, the extension in the embedded portion is connect with the opaque outer box cover buckling.

Preferably, the opaque outer box cover is formed with outer box inserting chamber, the extension insertion in the embedded portion In the outer box inserting chamber, mutual cooperation is formed between the periphery wall in the embedded portion and the periphery wall of outer box inserting chamber Buckle structure.

Preferably, the opaque outer box cover includes the flanging knot that fitting is installed in the outside wall surface of the cooking cavity Structure.

Preferably, the furnace lamp mounting box further includes through periphery wall that outer box inserting chamber is arranged in and described being embedded in Installation post holes on the periphery wall in portion.

Preferably, it is recessed that the ring packing being arranged around the embedded portion is formed on the end face of the inner box end cap Slot, the annular seal grooves are equipped with ring type seal.

Preferably, the illumination furnace lamp is the built-in LED light being mounted in the furnace lamp mounting box.

Preferably, the illumination furnace lamp includes the conduction light of external LED light and the light source for conducting the external LED light Column, the conduction light beam protrude into the furnace lamp mounting box.

Through the above technical solutions, as it can be seen that the high-temperature cooking device of the utility model uses dismountable furnace lamp mounting box Furnace lamp is illuminated to be fixedly mounted, so that the mounting structure of illumination furnace lamp is more easy, convenient for safeguarding, and shape is more clean and tidy and beautiful It sees.

Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is to be used to provide a further understanding of the present invention, and constitute part of specification, and following Specific embodiment be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings:

Fig. 1 is the explosive view of the illumination furnace lamp of preferred embodiments of the present invention；

Fig. 2 is the part-structure of the perspective view of the high-temperature cooking device of first preferred embodiment of the utility model, main Illustrate cooking cavity, illumination furnace lamp (external) and furnace lamp mounting box；

Fig. 3 is the right side view in Fig. 2；

Fig. 4 is the E-E cross-sectional view of Fig. 3；

Fig. 5 is the part-structure of the perspective view of the high-temperature cooking device of second preferred embodiment of the utility model, main Illustrate cooking cavity, illumination furnace lamp (built-in) and furnace lamp mounting box.

Fig. 6 is the stereoscopic figure of the high-temperature cooking device of the third preferred embodiment of the utility model；

Fig. 7 is the explosive view of furnace lamp mounting box of the Fig. 2 into Fig. 4；

Fig. 8 is the main view of Fig. 7；

Fig. 9 is the Section A-A cross-sectional view of Fig. 8；

Figure 10 is illumination furnace lamp and furnace lamp mounting box explosive view of the Fig. 2 into Fig. 4, illustrates illumination furnace lamp and the installation of furnace lamp The installation relation of box；

Figure 11 is the left view of Figure 10；With

Figure 12 is the section B-B cross-sectional view in Figure 11.

Description of symbols

1 LED lamp circuit plate 2 conducts light beam

Set is mounted in 3 connecting sleeves 4

5 end support base, 6 inlet tank

7 waste water tank, 8 furnace lamp mounting box

10 LED light, 21 light transmission end

22 light source reflection end, 220 diffusing reflection end face

31 casing lumen, 41 flange limiting portion

51 supporting oblique surfaces

The 81 transparent interior opaque outer box covers of box cover 82

80 installation 83 ring type seals of post holes

811 embedded 812 inner box end caps of portion

813 annular seal grooves

821 flanging structure, 820 outer box insert chamber

100 cooking cavity, 101 cooking cavity

103 installation gaps

The central axis of θ slanted angle OO ' conduction light beam

Specific embodiment

Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.

In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually Be for direction shown in the drawings either for it is vertical, vertically or on gravity direction for each component mutual alignment Relationship description word.

It is asked for the illumination in the cooking cavity of existing high-temperature cooking device (such as steam oven, oven or micro-wave oven etc.) Topic, due to common halogen lamp there are illuminating effect difference and LED cannot problem resistant to high temperature, the utility model provides one kind can For the novel illumination furnace lamp in high-temperature cooking device, as shown in Figure 1, the illumination furnace lamp includes transparent 2 He of conduction light beam One end of LED light 10, conduction light beam 2 is light transmission end 21 and the other end is light source reflection end 22, and the fitting of LED light 10 is arranged in light transmission On the light transmission end face at end 21, the end face of light source reflection end 22 is formed as inclined diffusing reflection end face 220, the light source edge of LED light 10 It conducts the axial conduction of light beam 2 and is projected via the reflection of diffusing reflection end face 220 from the outer peripheral surface of conduction light beam 2.

The illumination furnace lamp of the utility model is used as light source using LED light 10, therefore, for the light source of halogen lamp, Since the light of the sending of LED light 10 is white light and can react true food colors, the illuminating effect of LED light 10 is more It is good.But since the high temperature resistance of LED light 10 itself is poor, it is not suitable for being placed in the cooking cavity of high temperature, therefore the prior art In will not attempt LED light 10 easily as light source, to the invention people creatively using conduction light beam 2 by the light of LED light 10 Source is directed into the inside of cooking cavity outside cooking cavity, solves the problems, such as above-mentioned 10 non-refractory of LED light, so that LED 10 longer life expectancy of lamp.In addition, particularly, the conduction light in the illumination furnace lamp of the utility model, as reflection 10 light source of LED light The end face of the light source reflection end 22 of column 2 is formed as inclined diffusing reflection end face 220, therefore, when 10 light source of LED light is along conduction light beam When 2 conduction to inclined diffusing reflection end face 220, it directly can carry out diffusing reflection and scatter out light source, without additionally increasing If the components such as reflective mirror carry out light reflection, so that structure is more simple and reflecting surface is bigger.Wherein, LED light 10 also has It is small in size, the advantages that being easily installed.To sum up, the illumination furnace lamps and lanterns of the utility model have structure novel, good illumination effect with And the advantages that long service life.

Preferably, diffusing reflection end face 220 can be frosting.The end face of the light source reflection end 22 of conduction light beam 2 is carried out Surface frosted processing, to play the role of diffusing reflection end face, the processing is simple.

Referring to shown in Figure 11 and Figure 12, the inclination between diffusing reflection end face 220 and the central axis OO ' for conducting light beam 2 is pressed from both sides Angle θ is preferably 30 °~60 °.

For convenience of the installation at the light transmission end 21 of the conduction light beam 2 of the illumination furnace lamp of the utility model, illumination furnace lamp further includes Connecting sleeve 3, while being also convenient for LED light 10 and being capable of fixing in the light transmission end 21 of conduction light beam 2.As shown in Figure 1, the connecting sleeve 3 Including axially through casing lumen 31, the light transmission end 21 of one end socket conduction light beam 2 of casing lumen 31, LED light 10 is from set The other end of pipe lumen 31 protrudes into and abuts light transmission end face.

Generally, illumination furnace lamp further includes the LED lamp circuit plate 1 for being fixedly installed with LED light 10, LED lamp circuit plate 1 and company Female connector pipe 3 forms flanged joint, to control the switch of LED light.

Further, the outer peripheral surface for conducting the close light transmission end 21 of light beam 2 can be enclosed with photomask.The photomask can be into one Step reinforces conduction of 10 light source of LED light in conduction light beam 2, avoids the loss of light source.

For the fixed installation convenient for conducting the light source reflection end 22 of light beam 2, illumination furnace lamp further includes with flange limiting portion 41 limit installation set 4, while the diffuse reflection effect of diffusing reflection end face 220 is influenced to prevent from being mounted set 4, set is mounted 4 are sheathed on the peripheral part of light source reflection end 22 and are arranged with 220 axially spaced-apart of diffusing reflection end face.

As shown in Figure 1, being usually so that the beveled end light source reflection end 22 of conduction light beam 2 installs stronger, illumination furnace lamp It further include end support base 5, end support base 5, which is formed with, is bonded matched supporting oblique surface 51 with diffusing reflection end face 220.

Generally, end support base 5 is preferably the flexible opaque material such as rubber base.

The utility model additionally provides a kind of high-temperature cooking device, described referring to fig. 2, which is usually roasting Case, steam oven or micro-wave oven etc., and the high-temperature cooking device includes above-mentioned illuminator, therefore also includes illuminator All advantages, no longer repeat one by one.

Fixed for the illumination furnace lamp in existing high-temperature cooking device by screw or aesthetics difference that glue is fixed and Inconvenient problem is installed, the utility model provides a kind of novel high-temperature cooking device, as shown in Fig. 2 to Fig. 4 and Figure 11. The high-temperature cooking device includes cooking cavity 100, and the periphery wall of cooking cavity 100 offers perforative furnace lamp installing port, furnace lamp Installing port is embedded with the furnace lamp mounting box 8 for sealing fixed illumination furnace lamp, and furnace lamp mounting box 8 is removably installed in periphery wall On.

As it can be seen that the high-temperature cooking device of the utility model uses dismountable furnace lamp mounting box 8 illumination furnace is fixedly mounted Lamp, so that the mounting structure of illumination furnace lamp is more easy, convenient for safeguarding, and shape is more clean and tidy and beautiful.

Specifically, while due to furnace lamp mounting box 8 for fixed illumination furnace lamp, it is also necessary to which the light of furnace lamp will be illuminated by meeting Source is projected to the effect in cooking cavity 101, and therefore, furnace lamp mounting box 8 includes the transparent interior box cover 81 that mutually fastens and opaque Outer box cover 82, the transparent interior fitting of box cover 81 are arranged on the inner wall of cooking cavity 100, as shown in Figure 7 to 9, so that The light source of illumination furnace lamp can expose in cooking cavity 101 from transparent interior box cover 81.

Preferably, transparent interior box cover 81 is Transparent Plastic Box Lid resistant to high temperature or glass box cover, and opaque outer box cover 82 is Metal box-lid.

More specifically, as shown in figures 7 and 9, transparent interior box cover 81 includes inner box end cap 812 and from inner box end cap 812 The embedded portion 811 that end face is stretched out, the inner wall of the end face fitting cooking cavity 100 of inner box end cap 812, is embedded in the insertion of portion 811 peace Loaded in furnace lamp installing port and protruding, the extension for being embedded in portion 811 is snapped connection with opaque outer box cover 82.

As shown in figure 9, opaque outer box cover 82 is formed with outer box inserting chamber 820, the extension insertion for being embedded in portion 811 is outer Box inserts in chamber 820, is embedded between the periphery wall in portion 811 and the periphery wall of outer box inserting chamber 820 and is formed with mutually matched card Buckle structure snaps connection mode with easy-to-mount advantage.

Meanwhile opaque outer box cover 82 includes the flanging structure that fitting is installed in the outside wall surface of cooking cavity 100 821.Therefore transparent interior box cover 81 is combined to pass through furnace lamp installing port from the inner wall of cooking cavity 100, so that furnace lamp is pacified Mounted box 8 is fixed in cooking cavity 100.

In the first preferred embodiment of the high-temperature cooking device of the utility model, furnace lamp mounting box 8 can be used for fixing It is placed outside 10 light source of LED light of furnace lamp mounting box 8, as shown in fig. 7, furnace lamp mounting box 8 further includes inserting through setting in outer box Installation post holes 80 on the periphery wall of chamber 820 and the periphery wall in embedded portion 811.

Wherein, in above-mentioned 10 light source of external LED light, which includes external LED light and external for conducting The conduction light beam 2 (shown in Figure 1) of the light source of LED light, conduction light beam 2 protrude into furnace lamp mounting box 8.

For the sealing performance for reinforcing furnace lamp mounting box 8, furnace lamp mounting box 8 and 100 side wall fixing seal of cooking cavity are prevented The problem of effect difference is formed with the annular seal grooves 813 being arranged around embedded portion 811, annular on the end face of inner box end cap 812 Sealed groove 813 can be equipped with the ring type seal 83 for sealing.

It is shown in Figure 6 in the second preferred embodiment of the high-temperature cooking device of the utility model, since furnace lamp is pacified Mounted box 8 has certain heat insulation, and illumination furnace lamp can also be the built-in LED light being mounted in furnace lamp mounting box 8.

For the problem of the illumination furnace lamp heat dissipation effect difference in existing high-temperature cooking device, especially LED light is intolerant to height The characteristic of temperature, in the high-temperature cooking device of the third preferred embodiment of the utility model, referring to shown in Fig. 6, Fig. 2 and Fig. 1, The high-temperature cooking device include cooking cavity 100 and be installed on cooking cavity 100 periphery wall illumination furnace lamp (referring to Fig. 1 institute Show), illumination furnace lamp includes the LED lamp circuit plate 1 with LED light 10, is laid with waterway tube on the periphery wall of cooking cavity 100 Line, water route pipeline are bonded setting with LED lamp circuit plate 1 as water cooling tube.

As it can be seen that in the high-temperature cooking device of the third preferred embodiment of the utility model, not only with good illumination effect LED light.At the same time, as shown in fig. 6, since the high-temperature cooking device of the utility model is usually steam cooking apparatus, example Such as steaming and baking box, steam oven or steam microwave oven, the steam cooking apparatus are commonly configured with water route pipeline system, therefore, simultaneously By as the water route pipeline of cooling water channel close to the LED light 10 for being placed outside cooking cavity 100, to play automatic water-cooling LED light 10 Heat dissipation effect therefore can remove the cumbersome design using radiating pieces such as cooling fins, space efficient and resource from, facilitate Reduce the production cost of product.

In general, the high-temperature cooking device of the utility model includes inlet tank 6, water route pipeline includes the pumping for connecting inlet tank 6 Water pipe.In this way, can be by drinking-water pipe close to LED light 10, therefore can at least cool down one group of LED light 10.

Meanwhile in the high-temperature cooking device of the utility model as shown in FIG. 6, which further includes waste water Case 7, water route pipeline further include the condensing reflux pipe for connecting waste water tank 7.Therefore can by condensate reflux line close to LED light 10, because The cooling another group of LED light 10 of solidifying reflux pipeline also can be used in this.

Specifically, in the high-temperature cooking device of the utility model, the high-temperature cooking device further include steam generator and Condensing unit, steam generator and condensing unit are installed on above the roof of cooking cavity 100, and inlet tank 6 and waste water tank 7 can be set It sets below the bottom wall of cooking cavity 100 (shown in Figure 6), one end of condensing unit is connected to cooking cavity 101 by exhaust pipe, The other end connects condensing reflux pipe.

Wherein, connection steam generator and the drinking-water pipe of inlet tank 6 are routed along the first side wall of cooking cavity 100, connection Waste water tank 7 and the condensing reflux pipe of condensing unit are along the opposite second sidewall cabling of the first side wall.Therefore corresponding two groups of illuminations Furnace lamp can be arranged close to the drinking-water pipe of the first side wall and second sidewall condensing reflux pipe respectively, reference can be made to Fig. 4 and Fig. 5.Therefore, make Furnace lamp must be illuminated to be distributed on the two sidewalls of cooking cavity 100, so that the illumination zone of illumination furnace lamp is wider.

Further, due to being equipped with multilayer mounting rack in the cooking cavity 101 of usual existing part high-temperature cooking device Layer is cooked, in this regard, the first side wall of cooking cavity 100 and second sidewall are provided through furnace lamp installing port, the furnace lamp of two sides Installing port is arranged along Sidewall Height direction interval.Therefore, the illumination furnace lamp of two sides periphery wall is designed into different height, can made Different illumination furnace lamps illuminate different culinary art layers, and furnace lamp installing port number is unlimited, and settable multiple illumination furnace lamps, so that 101 intraoral illumination effect of cooking cavity is brighter, clear.

Wherein, in the high-temperature cooking device of the third preferred embodiment of the utility model, illumination furnace lamp is preferably outer It is placed in Fig. 1 of furnace lamp mounting box 8 and illuminates the specific structure of furnace lamp, illumination furnace lamp further includes transparent conduction light beam 2, and LED Lamp circuit board 1 is installed on the roof of cooking cavity 100 or the lateral edge portion of bottom wall and is bonded the light transmission end face at light transmission end 21 and sets It sets, conduction light beam 2 extends towards the furnace lamp installing port on the side wall of cooking cavity 100, and the light source of LED light 10 is along conduction light beam 2 Axial conduction and via the reflection of diffusing reflection end face 220 so that reflected light is imported in cooking cavity 101 by furnace lamp installing port.

Meanwhile furnace lamp installing port is embedded with and (referring to Fig. 7 to Fig. 9), and is somebody's turn to do for the furnace lamp mounting box 8 of fixed illumination furnace lamp Illumination furnace lamp is fixed on the furnace lamp installing port of cooking cavity 100 by furnace lamp mounting box 8.It is shown in Figure 10, furnace lamp peace Mounted box 8 includes the transparent interior box cover 81 and opaque outer box cover 82 mutually fastened, and the light source reflection end 22 of conduction light beam 2 protrudes into furnace In the box chamber of lamp mounting box 8.The furnace lamp mounting box 8 passes through from the inner wall of cooking cavity 100 and fixes illumination furnace lamp.

Specifically, end support base 5 is arranged in furnace lamp mounting box 8, and end support base 5 is formed with and diffusing reflection end face The 220 matched supporting oblique surfaces 51 of fitting conduct light beam 2 via installation post holes to support the light source reflection end 22 of conduction light beam 2 80 protrude into box chamber, and the light source reflection end 22 of conduction light beam 2 is arranged with the set of the limit installation with flange limiting portion 41 4, limit Installation set 4 is in installation post holes 80.

It is that the light transmission end 21 of light beam 2 is conducted on the light transmission end 21 for conducting light beam 2 from connector sleeve in the other end of illuminator One end of pipe 3 pass through axially through casing lumen 31, and LED light 10 protrudes into from the other end of casing lumen 31 and abuts light transmission End face, LED lamp circuit plate 1 and connecting sleeve 3 form flanged joint.

Meanwhile it is shown in Figure 2, the roof of cooking cavity 100 or the lateral edge portion of bottom wall are equipped with and are used for mounted LED lamp The installation gap 103 of circuit board 1, LED light 10 are stretched out from installation gap 103.2 one end of conduction light beam for illuminating furnace lamp is protruded into simultaneously It is fixed on furnace lamp installing port, the other end is fixed in the roof of cooking cavity or the lateral edge portion of bottom wall, so that illumination The fixation of furnace lamp is more secured and stablizes.

Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above Detail in above embodiment can be to the skill of the utility model in the range of the technology design of the utility model Art scheme carries out a variety of simple variants, these simple variants belong to the protection scope of the utility model.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the utility model is to each No further explanation will be given for the possible combination of kind.

In addition, any combination can also be carried out between a variety of different embodiments of the utility model, as long as it is not disobeyed The thought for carrying on the back the utility model, equally should be considered as content disclosed in the utility model.

Claims (10)

1. a kind of high-temperature cooking device, which is characterized in that the high-temperature cooking device includes cooking cavity (100), the culinary art The periphery wall of cavity (100) offers perforative furnace lamp installing port, and the furnace lamp installing port is embedded with for sealing fixed illumination The furnace lamp mounting box (8) of furnace lamp, the furnace lamp mounting box (8) are removably installed on the periphery wall.

2. high-temperature cooking device according to claim 1, which is characterized in that the furnace lamp mounting box (8) includes mutually buckleing The transparent interior box cover (81) closed and opaque outer box cover (82), transparent interior box cover (81) fitting are arranged in the cooking cavity (100) on inner wall.

3. high-temperature cooking device according to claim 2, which is characterized in that the transparent interior box cover (81) is resistant to high temperature Transparent Plastic Box Lid or glass box cover, the opaque outer box cover (82) are metal box-lid.

4. high-temperature cooking device according to claim 2, which is characterized in that the transparent interior box cover (81) includes inner box end The embedded portion (811) covering (812) and being stretched out from the end face of the inner box end cap (812), the end of the inner box end cap (812) Face paste closes the inner wall of the cooking cavity (100), embedded portion (811) insertion be installed in the furnace lamp installing port and to Outer stretching, the extension of the embedded portion (811) are snapped connection with the opaque outer box cover (82).

5. high-temperature cooking device according to claim 4, which is characterized in that the opaque outer box cover (82) is formed with outer Box inserts chamber (820), and the extension of the embedded portion (811) is embedded in outer box inserting chamber (820), described to be embedded in Mutually matched buckle structure is formed between the periphery wall in portion (811) and the periphery wall of outer box inserting chamber (820).

6. high-temperature cooking device according to claim 5, which is characterized in that the opaque outer box cover (82) includes fitting The flanging structure (821) being installed in the outside wall surface of the cooking cavity (100).

7. high-temperature cooking device according to claim 5, which is characterized in that the furnace lamp mounting box (8) further includes running through Installation post holes (80) on the periphery wall of outer box inserting chamber (820) and the periphery wall in the embedded portion (811) is set.

8. the high-temperature cooking device according to any one of claim 4~7, which is characterized in that the inner box end cap (812) annular seal grooves (813) around embedded portion (811) setting are formed on the end face, the annular is close It seals groove (813) and is equipped with ring type seal (83).

9. high-temperature cooking device according to claim 1, which is characterized in that the illumination furnace lamp is to be mounted on the furnace lamp Built-in LED light in mounting box (8).

10. high-temperature cooking device according to claim 1, which is characterized in that the illumination furnace lamp include external LED light and For conducting the conduction light beam (2) of the light source of the external LED light, the conduction light beam (2) protrudes into the furnace lamp mounting box (8) It is interior.