CN213040465U

CN213040465U - Desk lamp that multi-angle was adjusted

Info

Publication number: CN213040465U
Application number: CN202022069994.6U
Authority: CN
Inventors: 袁利
Original assignee: Dongguan Second Shukang Technology Co ltd
Current assignee: Dongguan Second Shukang Technology Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-23
Anticipated expiration: 2030-09-18

Abstract

The utility model belongs to the technical field of the light technique and specifically relates to indicate a desk lamp that multi-angle was adjusted, including control base, stand, main lighting lamp and vice light, the one end and the control base of stand rotate to be connected, the other end of stand rotates with the one end of main lighting lamp to be connected, the other end and the vice light of main lighting lamp rotate and detachably are connected, main lighting lamp is connected with the control base electricity, main lighting lamp is provided with accomodates the groove, accomodate the groove and be used for holding and establish vice light. The utility model has the advantages of simple structure, can fold and accomodate and expand the use, simple to use, convenient, it is small to occupy, has main light and vice light, and the regulation of main light and vice light is nimble, can adjust into different user state with this desk lamp to can satisfy the user demand of different occasions, healthy eye, application range is wide, and the practicality is strong.

Description

Desk lamp that multi-angle was adjusted

Technical Field

The utility model belongs to the technical field of the light technique and specifically relates to indicate a desk lamp that multi-angle was adjusted.

Background

The desk lamp is one kind of lamp, and the electric appliance is mainly placed on a writing desk or a dining table for illumination and is a movable lamp. The bright irradiation range of the desk lamp is relatively small and concentrated, so that the light of the whole room is not influenced, the effect is limited around the desk lamp, reading and learning are facilitated, and energy is saved.

The desk lamp in the prior art has a complex structure and high cost, the regulation of the lighting angle and the lighting range of the desk lamp in the prior art is very limited, a user needs to change the lighting angle and the lighting range of the desk lamp through auxiliary operations such as moving the desk lamp, the problems that the eye health is not facilitated due to too strong light-dark transition and the like exist, and inconvenience exists in use. Therefore, the drawbacks are obvious, and a solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a desk lamp that multi-angle was adjusted, a structure is simple, can fold and accomodate and expand the use, independent use after main lighting lamp and vice light are dismantled even, high durability and convenient use, it is small to occupy, main lighting lamp and vice lighting lamp have, and the regulation of main lighting lamp and vice lighting lamp is nimble, can adjust this desk lamp into different user states, thereby can satisfy the user demand of different occasions, it is healthy with the eye, wide application range, therefore, the clothes hanger is strong in practicability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a desk lamp that multi-angle was adjusted, its includes control base, stand, main lighting lamp and vice light, the one end and the control base of stand rotate to be connected, the other end of stand rotates with the one end of main lighting lamp to be connected, the other end and the vice light of main lighting lamp rotate and detachably are connected, main lighting lamp is connected with the control base electricity, main lighting lamp is provided with accomodates the groove, accomodate the groove and be used for holding and establish vice light.

Furthermore, the auxiliary illuminating lamp is rotatably connected with the main illuminating lamp through a first rotary joint, and the first rotary joint is detachably connected with the main illuminating lamp.

Further, the desk lamp that the multi-angle was adjusted still includes the spotlight, spotlight and stand or main lighting lamp detachably connected, the spotlight is connected with the control base electricity.

Furthermore, the tail end of the spotlight is provided with a rotary hole, the stand column is provided with a rotary column, and the rotary column is inserted into the rotary hole.

Furthermore, the free end of the auxiliary illuminating lamp is provided with a positioning hole, the main illuminating lamp is connected with a push button in a sliding mode, the push button is connected with a positioning column, and the positioning column is used for being inserted into the positioning hole.

Further, the first rotary joint is provided with a horizontal shaft and a vertical shaft, the auxiliary illuminating lamp is rotatably connected with the vertical shaft, and the first rotary joint is rotatably connected with the main illuminating lamp through the horizontal shaft.

Furthermore, the main illuminating lamp is electrically connected with a first pole piece, the first pole piece is located in the accommodating groove, the auxiliary illuminating lamp is electrically connected with a second pole piece, the first pole piece is used for being electrically connected with the second pole piece, a rechargeable battery is arranged in the auxiliary illuminating lamp, and the rechargeable battery is electrically connected with the second pole piece.

Furthermore, the main illuminating lamp is rotationally connected with the upright post through a second rotary joint; the second rotary joint comprises a rotary arm connected to the main illuminating lamp and a rotary groove formed in the stand column, and the rotary arm is rotatably connected to the inner wall of the rotary groove.

Furthermore, an elastic deformation piece is arranged at one end of the main lighting lamp close to the upright post, and an irradiation end of the spotlight is concavely provided with an insertion hole; when the spotlight is assembled on the main illuminating lamp, the elastic deformation piece is inserted in the insertion hole.

Furthermore, a circuit board is arranged in the control base, the control base is provided with a pressing knob, a main lamp on-off button, a condensation on-off button and a plurality of color temperature touch buttons, and the pressing knob, the main lamp on-off button, the condensation on-off button and the plurality of color temperature touch buttons are electrically connected with the circuit board.

The utility model has the advantages that: the utility model has the advantages of simple structure, can fold and accomodate and expand the use, independent use after main light and vice light are dismantled even, and is simple to use, convenient, it is small to occupy, main light and vice light have, and the regulation of main light and vice light is nimble, can realize the multi-angle and adjust, and make the illumination area very big extension, can adjust into different user states with this desk lamp, thereby can satisfy the user demand of different occasions, healthy use eye, application range is wide, therefore, the clothes hanger is strong in practicability.

Drawings

Fig. 1 is a schematic perspective view of a usage state of the present invention.

Fig. 2 is a schematic perspective view of another usage state of the present invention.

Fig. 3 is a schematic view of the exploded structure of the present invention.

Description of reference numerals:

1. a control base; 2. a column; 3. a main lighting lamp; 4. a secondary illuminating lamp; 5. spotlight; 6. a receiving groove; 7. a first pole piece; 9. positioning holes; 10. a push button; 11. a positioning column; 12. a first rotary joint; 13. a horizontal axis; 14. a vertical axis; 15. a second rotary joint; 16. a rotating arm; 17. a rotating tank; 18. an elastic deformation member; 20. screwing holes; 21. rotating the column; 22. pressing the knob; 23. a main lamp on-off button; 24. a light-gathering on-off button; 25. a color temperature touch button; 26. an auxiliary lamp on-off button; 27. a brightness adjustment button; 28. and (5) a focusing ring.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1 to 3, the utility model provides a multi-angle adjustable desk lamp, it includes control base 1, stand 2, main lighting lamp 3, vice lighting lamp 4 and spotlight 5, one end of stand 2 rotates with control base 1 to be connected, the other end of stand 2 rotates with one end of main lighting lamp 3 to be connected, the other end of main lighting lamp 3 rotates and detachably connects with vice lighting lamp 4, spotlight 5 detachably connects with stand 2 or main lighting lamp 3, main lighting lamp 3 and spotlight 5 all are connected with control base 1 electricity, main lighting lamp 3 is provided with storage groove 6, storage groove 6 is used for holding vice lighting lamp 4; specifically, the accommodating groove 6 is in concave-convex fit with the auxiliary illuminating lamp 4, after the auxiliary illuminating lamp 4 is accommodated in the accommodating groove 6, the main illuminating lamp 3 and the auxiliary illuminating lamp 4 are in a folded state, and the outline of the main illuminating lamp 3 is complementary with the outline of the auxiliary illuminating lamp 4; the main illuminating lamp 3 and the auxiliary illuminating lamp 4 are both in a long strip shape.

In practical application, when the multi-angle adjustable desk lamp needs to be stored, the storage groove 6 stores the auxiliary illuminating lamp 4, so that the auxiliary illuminating lamp 4 and the main illuminating lamp 3 are in a folding state, the main illuminating lamp 3 and the stand column 2 are folded, and the spotlight 5 is installed at the end part of the main illuminating lamp 3, so that the utility model is in a completely folded state, the utility model is convenient to store and occupies a small space; when the multi-angle adjustable desk lamp is needed, the main illuminating lamp 3 can rotate relative to the upright post 2, so that the main illuminating lamp 3 and the upright post 2 are in an open state, and the rotating angle of the main illuminating lamp 3 relative to the upright post 2 is set according to the requirement of a user (for example, when the angle of the main illuminating lamp 3 is 45 degrees, the main illuminating lamp 3 can be fixed at 45 degrees after the angle is adjusted), so that the main illuminating lamp 3 can be adjusted in multiple angles, the upright post 2 can be rotated according to the requirement of the user, the upright post 2 can rotate relative to the control base 1, the main illuminating lamp 3 can be adjusted in a horizontal direction in a rotating mode, the use range of the main illuminating lamp 3 is enlarged, the illumination angle and the illumination position of the main illuminating lamp 3 can be adjusted conveniently, and the auxiliary illuminating lamp 4 and the spotlight 5 can be synchronously adjusted when the angle of; when the irradiation range of this desk lamp is prolonged or enlarged to needs, vice light 4 can rotate main lighting lamp 3 relatively for vice light 4 shifts out from accomodating in the groove 6, opens vice light 4, makes vice light 4 and main lighting lamp 3 play the effect of illumination simultaneously, thereby has enlarged the regional scope of illumination, and vice light 4 can be relative main lighting lamp 3 arbitrary angular rotation, can carry out the angle modulation of multidimension degree to vice light 4. Such as: when the drawing person is drawing, if the drawing paper is too long or when too wide, can prolong the scope of illumination through auxiliary lighting lamp 4 to in throw light on to whole drawing paper, if when the in-process at the drawing need throw light on to the reference thing, the light of auxiliary lighting lamp 4 shines on the reference thing, and main lighting lamp 3 shines on the drawing board of drawing person, the utility model discloses can also apply to in the scene of difference (reading, engineering operation, writing etc.). When light is required to be intensively irradiated on a certain position, the spotlight 5 is obliquely arranged on the upright post 2, the inclination angle of the spotlight 5 is adjusted according to the actual situation, and the spotlight 5 irradiates concentrated light on the certain position, which is beneficial to increasing the application occasions of the utility model; such as: when the engineering personnel need to weld the circuit board, the light can be intensively irradiated on the welding points of the circuit board through the spotlight 5, and the weak sight can be greatly helped. In application, the auxiliary illuminating lamp 4 can be separated from the main illuminating lamp 3, can be used as a hand lamp by being held by a hand, and can be used as a screen lamp, a bedside lamp and the like by being matched with a fixed frame; the auxiliary illuminating lamp 4 can be placed in the accommodating groove 6 for charging after being used.

The utility model has the advantages of simple structure, can fold and accomodate and expand the use, independent use after main light 3 and vice light 4 are dismantled even, high durability and convenient use, it is small to occupy, main light 3 has, vice light 4 and spotlight 5, and main light 3, vice light 4 and spotlight 5's regulation is nimble, can realize the multi-angle and adjust, and make the illumination area very big extension, can adjust this desk lamp into different user states, thereby can satisfy the user demand of different occasions, it is healthy with the eye, wide application range, therefore, the clothes hanger is strong in practicability.

In this embodiment, the main illuminating lamp 3 is electrically connected with a first pole piece 7, the first pole piece 7 is located in the accommodating groove 6, the auxiliary illuminating lamp 4 is electrically connected with a second pole piece, the first pole piece 7 is used for being electrically connected with the second pole piece, the auxiliary illuminating lamp 4 acts on an independent illuminating lamp, a rechargeable battery is arranged in the auxiliary illuminating lamp 4, and the rechargeable battery is electrically connected with the second pole piece. When the auxiliary illuminating lamp 4 and the main illuminating lamp 3 are in a folded state, the auxiliary illuminating lamp 4 is accommodated in the accommodating groove 6, the second pole piece of the auxiliary illuminating lamp 4 is in conductive contact with the first pole piece 7 of the main illuminating lamp 3, and after the control base 1 is electrified, the rechargeable battery of the auxiliary illuminating lamp 4 can be charged, so that the auxiliary illuminating lamp 4 is ensured to have enough electric quantity.

Specifically, the auxiliary illuminating lamp 4 is provided with an auxiliary lamp on-off button 26 and a brightness adjusting button 27, wherein the auxiliary lamp on-off button 26 and the brightness adjusting button 27 are of an integrated structure, and the two are respectively arranged at two ends of the integrated structure. The sub illumination lamp 4 can be turned on or off by pressing the sub lamp on/off button 26 so that the sub illumination lamp 4 can be independently controlled, and the light brightness of the sub illumination lamp 4 can be adjusted by pressing the brightness adjusting button 27.

In this embodiment, a positioning hole 9 is formed at a free end of the auxiliary illuminating lamp 4, the main illuminating lamp 3 is slidably connected with a push button 10, the push button 10 is connected with a positioning column 11, and the positioning column 11 is used for being inserted into the positioning hole 9. In order to avoid vice light 4 to rotate and expand in the relative main lighting lamp 3 of accident, guarantee the stability after vice light 4 and the 3 folding backs of main lighting lamp, accomodate in accomodating groove 6 back when vice light 4, locating hole 9 aligns reference column 11, the user promotes push button 10 towards the direction that is close to locating hole 9, make push button 10 even take reference column 11 to be close to locating hole 9 and remove, until in reference column 11 inserts locating hole 9, in order to realize locking vice light 4, guarantee that vice light 4 and main lighting lamp 3 can fold together steadily. When the auxiliary illuminating lamp 4 needs to be unfolded, the push button 10 is pushed reversely, so that the positioning column 11 moves out of the positioning hole 9.

In this embodiment, the auxiliary illuminating lamp 4 is rotatably connected with the main illuminating lamp 3 through the first rotary joint 12, the first rotary joint 12 is detachably connected with the main illuminating lamp 3, so that the auxiliary illuminating lamp 4 can rotate relative to the main illuminating lamp 3, and the irradiation angle of the auxiliary illuminating lamp 4 can be adjusted conveniently.

In practical application, the auxiliary illuminating lamp 4 can be detached from the main illuminating lamp 3 for independent use, and can be used as an independent lamp (such as a luminous stick).

In this embodiment, the first rotary joint 12 is provided with a horizontal shaft 13 and a vertical shaft 14, the auxiliary illuminating lamp 4 is rotatably connected with the vertical shaft 14, and the first rotary joint 12 is rotatably connected with the main illuminating lamp 3 via the horizontal shaft 13. This structural design for vice light 4 can be around 360 rotations of the central axis of vertical axis 14, and first rotary joint 12 can drive vice light 4 and rotate around the central axis of horizontal axis 13 approximate 360, thereby can the multidimension degree adjust vice light 4's irradiation angle. Specifically, the horizontal shaft 13 and the vertical shaft 14 are damping shafts for providing frictional resistance to the sub-illumination lamp 4 or the first rotary joint 12 so that the sub-illumination lamp 4 and the first rotary joint 12 can be rotationally fixed at a certain angle.

Specifically, the auxiliary illuminating lamp 4 is detachably connected to the vertical shaft 14.

In this embodiment, the main illuminating lamp 3 is rotatably connected with the upright post 2 through the second rotary joint 15, so that the main illuminating lamp 3 can rotate relative to the upright post 2, and the irradiation angle of the main illuminating lamp 3 can be adjusted conveniently.

In this embodiment, the second rotary joint 15 includes a rotary arm 16 connected to the main illuminating lamp 3 and a rotary groove 17 formed in the column 2, the rotary arm 16 is rotatably connected to an inner wall of the rotary groove 17, the column 2 is cylindrical, and the rotary groove 17 is recessed from a top end of the column 2 and penetrates through a diameter of the column 2. In practical application, the rotating arm 16 can rotate in the rotating groove 17, so that the main illuminating lamp 3 can swing in the vertical direction, namely the main illuminating lamp 3 can swing up and down, the irradiation angle of the main illuminating lamp 3 can be adjusted, and the main illuminating lamp 3 and the stand column 2 can be folded conveniently.

Of course, the first rotary joint 12 and the second rotary joint 15 may be both fixed by a rotary member capable of rotating to a certain angle in the related art.

In this embodiment, an elastic deformation member 18 is disposed at one end of the main lighting lamp 3 close to the upright 2, the elastic deformation member 18 is a rubber member or the like, and an irradiation end of the spotlight 5 is concavely provided with an insertion hole; when the spotlight 5 is assembled to the main lighting lamp 3, the elastic deformation element 18 is inserted into the insertion opening. When the spotlight 5 is not needed to be used, the spotlight 5 is installed at the end of the main lighting lamp 3, so that the elastic deformation member 18 is inserted into the insertion hole, and the elastic deformation member 18 clamps the inner wall of the insertion hole under the elastic force of the elastic deformation member 18, so that the spotlight 5 can be firmly assembled on the main lighting lamp 3, and the spotlight 5 is coaxially arranged with the main lighting lamp 3. When the spotlight 5 is required to be used, the spotlight 5 may be detached from the main illumination lamp 3 and assembled to the column 2. This structural design is convenient for carry out dismouting and use to spotlight 5, and makes the compact structure of this desk lamp, appearance pleasing to the eye.

In this embodiment, a rotating hole 20 is formed at the tail end of the spotlight 5, the upright post 2 is provided with a rotating post 21, and the rotating post 21 is inserted into the rotating hole 20. After the spotlight 5 is detached from the main illuminating lamp 3, the rotary hole 20 of the spotlight 5 is inserted on the rotary column 21, and the spotlight 5 rotates around the central axis of the rotary column 21, so that the irradiation angle of the spotlight 5 can be adjusted. In particular, a damping sleeve is provided inside said rotary hole 20, which provides a friction resistance to the rotary post 21, so that the spotlight 5 can be fixed at an angle.

Specifically, the stand column 2 is provided with a plurality of adjusting holes, the adjusting holes are arranged along the height direction of the stand column 2, and one end of the rotary column 21 is detachably inserted into one adjusting hole. Through will revolve post 21 cartridge in the adjustment hole of co-altitude, can adjust the high position that spotlight 5 installed on stand 2, it is convenient to adjust, and the practicality is strong.

In particular, said spotlight 5 is provided with a focus ring 28 for adjusting the focal length of the spotlight 5. The focal length of the spotlight 5 is adjusted through the focusing ring 28, which is beneficial to adjusting the effect of spotlight.

In this embodiment, a circuit board is arranged in the control base 1, the control base 1 is provided with a press knob 22, a main lamp on-off button 23, a light gathering on-off button 24 and a plurality of color temperature touch buttons 25, and the press knob 22, the main lamp on-off button 23, the light gathering on-off button 24 and the plurality of color temperature touch buttons 25 are all electrically connected with the circuit board. In practical applications, when the user clicks the pressing knob 22, the main illuminating lamp 3 is turned on or off; when pressing knob 22 for the on-state, lightly press knob 22, can adjust the luminance of main lighting lamp 3, when pressing and rotatory knob 22 of pressing, can adjust the colour temperature of main lighting lamp 3 to the user uses illumination light in the condition of difference. Of course, the main lighting lamp opening and closing button 23 can be clicked to control the opening and closing of the main lighting lamp 3, the spotlight opening and closing button 24 can be clicked to control the opening and closing of the spotlight 5, the main lighting lamp 3 and the spotlight 5 can be independently controlled, and the use is convenient and fast. The colour temperature mode that this desk lamp possessed mainly includes work lighting mode, drawing mode, reading mode, writes the operation mode, candlelight mode, engineering operation mode, is absorbed in the mode etc. and the foretell colour temperature mode of a plurality of colour temperature touch buttons 25 difference one-to-one for the user can directly perceivedly and adjust the colour temperature mode that corresponds conveniently through addding colour temperature touch button 25, is particularly suitable for old person and child to use.

Specifically, the control base 1 is provided with a lithium battery and a USB interface for charging the lithium battery. In actual use, can charge to the lithium cell through the USB interface, the lithium cell provides the electric quantity, also can use on the socket of family through the cartridge of electric wire.

Specifically, stand 2 is the telescopic link, is convenient for adjust the length of stand 2 to can highly adjust main lighting lamp 3 and vice light 4, the practicality is strong, and application range is wide.

In particular, said main lighting lamp 3 and spotlight 5 are both electrically connected to the control base 1 via electric wires.

The utility model discloses still possess following advantage:

first, the existing desk lamp is locally high in brightness, concentrated in area, strong in light and shade contrast, and ignores surrounding ambient light. The utility model can make the ambient light become softer and more uniform after multiple reflections, the transition is smooth, the strong stimulation to eyes is reduced, and the eyes are healthier;

secondly, the lighting area of the existing desk lamp is limited, and the space for adjusting the lighting angle is limited. The utility model can ensure the illumination, and simultaneously, the illumination area is multiplied, the illumination angle is adjustable in all directions, and the use is greatly convenient;

thirdly, the existing desk lamp is difficult to meet the local highlight requirement of professional users or people with visual impairment. The utility model can meet the specific requirements of specific people through the design of the focus adjusting ring 28 and the adjustable angle of the spotlight 5;

fourth, the utility model discloses a vice light 4 can charge on main light 3, but separable independent utility has greatly expanded the applicable space of product.

All the technical features in the embodiment can be freely combined according to actual needs.

The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.

Claims

1. The utility model provides a desk lamp that multi-angle was adjusted which characterized in that: including control base, stand, main lighting lamp and vice light, the one end and the control base of stand rotate to be connected, the other end of stand rotates with the one end of main lighting lamp to be connected, the other end and the vice light of main lighting lamp rotate and detachably are connected, the main lighting lamp is connected with the control base electricity, the main lighting lamp is provided with accomodates the groove, accomodate the groove and be used for holding and establish vice light.

2. The multi-angle adjustable desk lamp as claimed in claim 1, wherein: the auxiliary illuminating lamp is rotatably connected with the main illuminating lamp through a first rotary joint, and the first rotary joint is detachably connected with the main illuminating lamp.

3. The multi-angle adjustable desk lamp as claimed in claim 1, wherein: the multi-angle adjustable desk lamp further comprises a spotlight, the spotlight is detachably connected with the stand column or the main illuminating lamp, and the spotlight is electrically connected with the control base.

4. The multi-angle adjustable desk lamp as claimed in claim 3, wherein: the tail end of the spotlight is provided with a rotary hole, the upright post is provided with a rotary post, and the rotary post is inserted into the rotary hole.

5. The multi-angle adjustable desk lamp as claimed in claim 1, wherein: the free end of the auxiliary illuminating lamp is provided with a positioning hole, the main illuminating lamp is connected with a push button in a sliding mode, the push button is connected with a positioning column, and the positioning column is used for being inserted into the positioning hole.

6. The multi-angle adjustable desk lamp as claimed in claim 2, wherein: the first rotary joint is provided with a horizontal shaft and a vertical shaft, the auxiliary illuminating lamp is rotatably connected with the vertical shaft, and the first rotary joint is rotatably connected with the main illuminating lamp through the horizontal shaft.

7. The multi-angle adjustable desk lamp as claimed in claim 1, wherein: the main lighting lamp is electrically connected with a first pole piece, the first pole piece is located in the accommodating groove, the auxiliary lighting lamp is electrically connected with a second pole piece, the first pole piece is used for being electrically connected with the second pole piece, the auxiliary lighting lamp is internally provided with a rechargeable battery, and the rechargeable battery is electrically connected with the second pole piece.

8. The multi-angle adjustable desk lamp as claimed in claim 1, wherein: the main illuminating lamp is rotationally connected with the upright post through a second rotary joint; the second rotary joint comprises a rotary arm connected to the main illuminating lamp and a rotary groove formed in the stand column, and the rotary arm is rotatably connected to the inner wall of the rotary groove.

9. The multi-angle adjustable desk lamp as claimed in claim 3, wherein: an elastic deformation piece is arranged at one end of the main illuminating lamp close to the upright post, and an irradiation end of the spotlight is concavely provided with an insertion hole; when the spotlight is assembled on the main illuminating lamp, the elastic deformation piece is inserted in the insertion hole.

10. The multi-angle adjustable desk lamp as claimed in claim 3, wherein: the control base is internally provided with a circuit board, the control base is provided with a pressing knob, a main lamp on-off button, a condensation on-off button and a plurality of color temperature touch buttons, and the pressing knob, the main lamp on-off button, the condensation on-off button and the plurality of color temperature touch buttons are electrically connected with the circuit board.