KR102562842B1 - Touch sensor assembly and electrical port comprising the same - Google Patents

Abstract

The present invention relates to a touch sensor assembly and an electric pot including the same. In addition, the touch sensor assembly according to an embodiment of the present invention is provided by stacking a touch substrate attached to a lower surface of an upper panel on which touch points are displayed, a first pole and a second pole, so that the first pole is in contact with the lower surface of the touch substrate. Piezo disk aligned in the direction facing the touch board, holder supporting the side and bottom of the piezo disk to fix the piezo disk to the bottom of the touch board, the top is attached to the bottom of the touch board, and the overlapping part with the holder A protective substrate having an open hole, an upper surface attached to the lower surface of the protective substrate, an indicator substrate provided with one or more light emitting elements in a portion that does not overlap with the protective substrate, and a user's touch input from the touch substrate. It may include a main board provided with a control unit for controlling the driving of one or more light emitting devices by receiving the provided.

Description

Touch sensor assembly and electric port including the same {TOUCH SENSOR ASSEMBLY AND ELECTRICAL PORT COMPRISING THE SAME}

The present invention relates to a touch sensor assembly and an electric pot including the same.

Generally, an electric pot is a device for boiling and keeping a fluid such as water warm. Since such an electric pot is a device that can boil water more conveniently than a gas stove, it is used for boiling water when drinking coffee or tea. In addition, the electric pot has the advantage of being able to easily boil water, so it can be used for various purposes such as boiling ramen, heating soup, stew, etc., or steaming food.

Here, referring to FIG. 1, the configuration of a conventional electric pot is shown, and with reference to this, let's take a look at the conventional electric pot.

1 is a cross-sectional view illustrating a conventional electric pot.

For reference, FIG. 1 is a drawing shown in Republic of Korea Patent Publication No. 10-2013-0013529, and the reference numerals used in FIG. 1 are applied only to FIG.

Referring to FIG. 1 , a conventional electric pot may include a body 110, a power supply 120, a heat conduction panel 140, a heating panel 150, and the like.

Here, a handle 115 may be coupled to the body 110, and the handle 115 may be formed of a resin material having low thermal conductivity. A button 117 may be installed on the upper side of the handle 115 to turn on/off the power of the electric pot.

That is, when the user presses the button 117, power is supplied from the power supply 120 to a heater (not shown) provided in the body 110, and as the heater is heated, the liquid accommodated in the body 110 is heated. will be.

However, in this way, when a button for operating the electric pot is installed on the upper side of the handle 115, there is a problem that the appearance of the electric pot may be damaged.

In view of this, research on a handle structure that is normally invisible but displays display information or buttons only when the user desires (i.e., a handle structure with a hidden button method applied) has been actively conducted. It is becoming.

In addition, users have recently shown a high preference for metal materials as materials for home appliances.

However, there is a problem in that it is difficult to apply the capacitive touch method to a handle having a panel made of metal. In addition, since the metal material itself has some rigidity, it is not easy to implement a static pressure touch method. In particular, it is not easy to implement a hidden button on a panel made of metal with a conventional touch sensing method.

Therefore, it is time to develop a sensor that can reliably recognize a touch operation even on a metal panel. These sensors can be applied not only to the top panel of the handle of the electric pot, but also to other home appliances in which hidden buttons are applied to the exterior made of metal, so the application fields are very diverse.

For reference, Korean Patent Registration No. 10-1826478 discloses a metal touch sensor according to the prior art.

However, in the case of a metal touch sensor, there is a problem that oxidation occurs when a connection part made of metal is exposed to air for a long time. Furthermore, when oxidation occurs, there is also a problem that an abnormality may occur in the electrical connection of the connection unit.

In addition, when attaching a touch board to which a metal touch sensor (eg, piezo disk) is attached to a panel through an adhesive member (eg, double-sided tape), a device such as a roller is used to compress the metal touch sensor with a certain force. As should be done, there is a risk that the metal touch sensor or sensor holder may be deformed or damaged during the compression process.

In addition, when the user touches the metal touch sensor too strongly or touches an area other than the metal touch sensor, the force is transferred to another metal touch sensor that was not intended to be touched, and the product may malfunction.

In addition, the handle portion of the electric pot has a narrow internal space, so it is difficult to accommodate all of the touch substrate to which the metal touch sensor is attached, the indicator substrate to control the light emitting element, and the main substrate to control the driving of all components. .

An object of the present invention is to provide a touch sensor assembly capable of preventing oxidation of a piezo disk.

Another object of the present invention is to provide a touch sensor assembly capable of preventing deformation or breakage of a piezo disk or holder during a compression operation using equipment such as a roller.

Another object of the present invention is to provide a touch sensor assembly capable of preventing malfunction of a product due to a touch mistake.

Another object of the present invention is to provide a touch sensor assembly to which an adhesive member capable of preventing static electricity from entering and maintaining adhesive force for a long period of time is applied.

Another object of the present invention is to provide a touch sensor assembly in which a touch substrate to which a piezo disk is attached, an indicator substrate, and a main substrate are configured in a stack form.

Another object of the present invention is to provide a touch sensor assembly capable of improving the reliability of maintaining adhesive strength of an adhesive member.

Another object of the present invention is to provide a touch sensor assembly having high sensitivity to a touch operation.

Another object of the present invention is to provide a touch sensor assembly that is robust and highly durable.

Another object of the present invention is to provide a touch sensor assembly with a high design freedom.

Another object of the present invention is to provide an electric pot including the touch sensor assembly described above.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention not mentioned above can be understood by the following description and will be more clearly understood by the examples of the present invention. It will also be readily apparent that the objects and advantages of the present invention may be realized by means of the instrumentalities and combinations indicated in the claims.

The touch sensor assembly according to the present invention may prevent oxidation of the piezo disk by including a protective substrate attached to the lower surface of the touch substrate.

In addition, the touch sensor assembly according to the present invention includes a protective substrate having an open hole formed at a portion overlapped with the holder, thereby preventing the piezo disk or holder from being deformed or damaged during pressing using equipment such as a roller. can do.

In addition, in the touch sensor assembly according to the present invention, a portion of the upper surface that does not overlap with the holder is attached to the lower surface of the touch substrate to seal the piezo disk and the holder, and MPPO (Modified Polyphenylene Oxide), PBT (Polybutylene Terephthalate), PC (Polycarbonate) By including a protective substrate made of at least one of the materials, malfunction of the product due to a touch mistake can be prevented.

In addition, since acrylic adhesive is applied to the touch sensor assembly according to the present invention, a primer is applied, and an adhesive member having high insulation resistance and heat resistance is applied, it is possible to prevent static electricity from entering and to maintain adhesive strength for a long period of time.

In addition, the touch sensor assembly according to the present invention includes a touch board, an indicator board, and a main board configured in a stack form on the inside of the top of the handle, enabling the function implementation of each board in a small space.

In addition, the touch sensor assembly according to the present invention supports substrates configured in a stack shape in an upward direction with a boss portion formed to extend upward, thereby improving the reliability of maintaining adhesive force of the adhesive member.

In addition, since an adhesive member having a thin thickness is applied to the touch sensor assembly according to the present invention, sensitivity to a touch operation can be improved.

In addition, the touch sensor assembly according to the present invention can be firmly attached to the top panel provided with the touch area through the boss portion extending upward, and through this, durability can be improved.

In addition, various types of piezo disks can be applied to the touch sensor assembly according to the present invention, and accordingly, the structure for fixing the piezo disk can be easily modified, thereby increasing the degree of freedom in design.

In addition, the electric pot according to the present invention may include the above-described touch sensor assembly and a handle having an inner side of a boss supporting the above-described touch sensor assembly.

Since the touch sensor assembly according to the present invention can prevent oxidation of the piezo disk, electrical contact failure due to oxidation can be prevented in advance.

In addition, the touch sensor assembly according to the present invention can prevent deformation or breakage of the piezo disk or holder during a compression operation using equipment such as a roller, so that the durability and lifespan of the corresponding parts can be improved.

In addition, the touch sensor assembly according to the present invention can prevent malfunction of a product due to a touch mistake, thereby improving user convenience and user satisfaction.

In addition, since an adhesive member capable of preventing static electricity from entering and maintaining adhesive force for a long period of time is applied to the touch sensor assembly according to the present invention, damage to circuit components and electric shock accidents due to static electricity can be prevented.

In addition, in the touch sensor assembly according to the present invention, since each board is configured in a stack form on the inside of the top of the handle, organic functions of each board can be realized.

In addition, the touch sensor assembly according to the present invention can improve the reliability of maintaining the adhesive force of the adhesive member, and can minimize the possibility of adhesive performance deterioration due to product vibration, shock, and changes in ambient temperature and humidity.

In addition, since the touch sensor assembly according to the present invention can improve sensitivity to a touch operation, user convenience and user satisfaction can be improved.

In addition, since the touch sensor assembly according to the present invention can be firmly attached to the top panel of the handle part, durability can be improved and robust assembly can be achieved. Furthermore, it is possible to improve the reliability of touch operation detection through a solid assembly.

In addition, since the touch sensor assembly according to the present invention has a high degree of design freedom, various designs are possible.

In addition, the electric pot according to the present invention may have the above-described effects by including the above-described touch sensor assembly and a handle provided inside the boss portion supporting the above-mentioned upwardly.

In addition to the effects described above, specific effects of the present invention will be described together while explaining specific details for carrying out the present invention.

1 is a cross-sectional view illustrating a conventional electric pot.
2 is a perspective view illustrating an electric pot according to an embodiment of the present invention.
3 is an exploded perspective view illustrating the electric pot of FIG. 2;
Figure 4 is a cross-sectional view of the pedestal shown in Figure 2;
5 is a cross-sectional view of the pot body shown in FIG. 2;
6 is an exploded perspective view of the handle shown in FIG. 2;
FIG. 7 is an exploded perspective view specifically explaining the touch sensor assembly shown in FIG. 6 .
FIG. 8 is a schematic diagram illustrating a boss portion provided on an upper inner side of the handle shown in FIG. 6 .
FIG. 9 is an enlarged view of a portion A of the touch substrate shown in FIG. 7 .
FIG. 10 is a diagram for explaining other examples of the touch substrate shown in FIG. 9 .
FIG. 11 is a diagram explaining the piezo disk shown in FIG. 7 .
FIG. 12 is a diagram explaining the holder shown in FIG. 7;
13 is a cross-sectional view illustrating an assembled state of some components of the touch sensor assembly of FIG. 7 .
FIG. 14 is a plan view illustrating an assembled state of some components of the touch sensor assembly of FIG. 7 .
Fig. 15 is a bottom view of Fig. 14;

The above objects, features and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, those skilled in the art to which the present invention belongs will be able to easily implement the technical spirit of the present invention. In describing the present invention, if it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Hereinafter, the arrangement of an arbitrary element on the "upper (or lower)" or "upper (or lower)" of a component means that an arbitrary element is placed in contact with the upper (or lower) surface of the component. In addition, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.

In addition, when a component is described as "connected", "coupled" or "connected" to another component, the components may be directly connected or connected to each other, but other components may be "interposed" between each component. ", or each component may be "connected", "coupled" or "connected" through other components.

Hereinafter, an electric pot according to an embodiment of the present invention will be described with reference to FIGS. 2 to 5 .

2 is a perspective view illustrating an electric pot according to an embodiment of the present invention. 3 is an exploded perspective view illustrating the electric pot of FIG. 2; Figure 4 is a cross-sectional view of the pedestal shown in Figure 2; 5 is a cross-sectional view of the pot body shown in FIG. 2;

First, referring to FIGS. 2 to 5, the electric pot 1 according to the embodiment of the present invention includes a stand 100, a pot body 200, a lid 400, a pot body top coupling part 500, a handle ( 600), and may include a lower coupling part 700 of the pot body.

First, the pedestal 100 may be detachably coupled to the lower end of the pot body 200 .

Specifically, the pedestal 100 may be coupled to the lower end of the pot body 200 to support the pot body 200 . In addition, a power cable connected to an external power source (not shown) is installed in the pedestal 100, and power can be supplied to the port body 200 by receiving power from the external power source.

In addition, as shown in FIG. 4 , the first power module PM1 is provided at the upper end of the pedestal 100 so as to protrude upward.

Specifically, the first power module PM1 may have a cylindrical shape protruding upward from the center of the top of the pedestal 100 . In addition, the first power module PM1 is electrically connected to the second power module PM2 through male-female coupling with the second power module PM2 provided in the port body 200, and through this, the pedestal 100 may transfer power supplied from an external power source to the port body 200. Also, the first power module PM1 may be electrically connected to a heater (not shown) provided in the pot body 200 by being male and female coupled to the second power module PM2.

The pot body 200 may be detachably coupled to the top of the pedestal 100, and contents (eg, water or beverage, etc.) may be contained therein.

Specifically, a space capable of accommodating contents (eg, water or beverage, etc.) exists inside the pot body 200, and a heater for heating the contents is provided.

In addition, since the upper end of the pot body 200 is opened, the upper end coupling part 500 of the pot body 200 may be coupled to the open upper end of the pot body 200 .

For reference, the user may insert contents into the pot body 200 through the open top of the pot body 200 .

In addition, the material of the pot body 200 may be heat-insulated and warmed to maintain the temperature of the contents for a long time, and the pot body 200 may be formed in a cylindrical shape, but is not limited thereto.

Also, as shown in FIG. 5 , a second power module PM2 that is male and female coupled to the first power module PM1 is provided at the lower end of the port body 200 .

The second power module PM2 may be electrically connected to the first power module PM1 through male-female coupling with the first power module PM1 provided on the pedestal 100, and through this, the port body 200 ) may receive power from the pedestal 100.

The lid 400 may be detachably coupled to the upper end of the pot body upper coupling part 500 .

Specifically, the lid 400 serves to cover the open top of the pot body 200 by being coupled to the top of the pot body top coupling part 500 . In addition, since the lid 400 is coupled to the upper coupling portion 500 of the pot body, the contents contained in the pot body 200 can be discharged to the outside only through the outlet 550 of the upper coupling portion 500 of the pot body. . In addition, a handle portion 450 protruding upward is provided on the upper surface of the lid 400, and the user can attach and detach the lid 400 from the upper coupling portion 500 of the pot body using the handle portion 450. .

The pot body upper end coupling part 500 may be coupled between the upper end of the pot body 200 and the lower end of the lid 400 .

Specifically, the pot body upper coupling portion 500 is coupled between the pot body 200 and the lid 400, and both upper and lower ends of the pot body upper coupling portion 500 may be opened. Accordingly, after lifting the lid 400, the user can inject the contents into the pot body 200 through the upper coupling part 500 of the pot body whose upper and lower ends are open. Furthermore, an outlet 550 is formed on one side of the upper end of the upper coupling part 500 of the pot body, so that the user tilts the pot body 200 even when the lid 400 is coupled to the upper coupling part 500 of the pot body. Depending on the degree, the contents contained in the pot body 200 can be discharged to the outside through the outlet 550.

For reference, the outlet 550 may be in communication with the inner space of the pot body 200 to allow contents contained in the pot body 200 to be discharged to the outside.

In addition, a handle coupling portion 570 is provided on one side of the upper coupling portion 500 of the pot body, and the handle 600 may be inserted into and coupled to the inside of the handle coupling portion 570 .

Specifically, the handle coupling part 570 may include a top panel 571 on which the touch point 53 is marked and a side panel 573 extending downward along an edge of the top panel 571 .

Here, the display hole 51 and the touch area 52 are provided on the top panel 571 at a portion that is easy for a user to identify or manipulate.

The display hole 51 is a hole for displaying the operating state of the electric pot 1, and may exist in plural numbers, for example. For reference, the number of display holes 51 may be the same as the number of light emitting elements (883 in FIG. 7 ) described later, but is not limited thereto.

Also, the display hole 51 may be formed at a position vertically overlapping a light emitting element ( 883 in FIG. 7 ) on the top panel 571 . Accordingly, the light emitted from the light emitting element ( 883 in FIG. 7 ) may be visually identified to the user through the display hole 51 .

Meanwhile, the touch area 52 is a part where a user touches to operate the electric pot 1 and is provided on the top panel 571 . A plurality of touch points 53 are provided in the touch area 52, and when a user presses a corresponding touch point 53, a corresponding operation is performed. The touch point 53 may be displayed on the top panel 571 by a surface processing method such as printing or etching so that a user can recognize its location.

Of course, the touch area 52 does not necessarily have to be provided on the top panel 571, and may be provided on another part (eg, the pot body 200 or the pedestal 100).

In addition, in the case of the touch point 53, it is not always displayed so that it can be identified, and depending on whether light is irradiated from the inside of the handle coupling part 570 or not, the corresponding position may or may not be recognized from the outside. there is.

This top panel 571 may be made of a metal plate (eg, a steel or stainless steel plate). The touch sensor assembly 800 is fixed to the lower surface of the top panel 571, that is, to the lower surface of the portion corresponding to the touch area 52.

In addition, the side panel 573 may also be made of a metal plate, and this side panel 573 may surround the side of the upper part 630 of the handle 600 .

The handle 600 is inserted into and coupled to the inside of the handle coupling part 570 and may have a column shape that is easy for a user to grip by hand. In addition, a touch sensor assembly 800 to be described below may be provided on the upper portion 630 of the handle 600 (that is, a portion inserted into and coupled to the inside of the handle coupling portion 570), and the pillar portion 620 of the handle 600 ) may include a switched-mode power supply (SMPS), an electrostatic double-layer capacitor (EDLC), a wireless communication module, and the like.

For reference, first and second bosses (BS1 and BS2 in FIG. 8 ) are formed on the inner wall of the upper part 630 of the handle 600 to extend upward. ) will be described later along with specific details.

The pot body bottom coupling part 700 may be coupled between the bottom of the pot body 200 and the top of the pedestal 100 .

Specifically, the lower coupling part 700 of the pot body may be coupled between the pot body 200 and the pedestal 100 . In addition, an insertion hole 710 is formed in the central portion of the bottom coupling part 700 of the pot body, and the first power module PM1 of the pedestal 100 can be inserted into and coupled to the insertion hole 710 .

As such, the electric pot 1 according to the embodiment of the present invention has the above-described configuration and characteristics. Hereinafter, referring to FIGS. 6 to 8, the touch sensor assembly 800 provided in the electric pot of FIG. 2 ) and surrounding structures.

6 is an exploded perspective view of the handle shown in FIG. 2; FIG. 7 is an exploded perspective view specifically explaining the touch sensor assembly shown in FIG. 6 . FIG. 8 is a schematic diagram illustrating a boss portion provided on an upper inner side of the handle shown in FIG. 6 .

6 to 8 , the handle 600 may include a pillar portion 620, an upper portion 630, and a packing portion 635.

Specifically, a packing part 635 for coupling and fixing between the pillar part 620 and the upper part 630 is disposed between the pillar part 620 and the upper part 630, and the pillar part 620 is the pillar body 622 ) and a pillar cover 624.

Here, the packing part 635 mutually couples and fixes the upper part 630 and the pillar body 622, and may be made of, for example, silicon.

In addition, the upper part 630 and the pillar body 622 may be made of the same material (eg, nylon-based plastic material (PA66)), and the pillar cover 625 is made of a metal material (eg, stainless steel (STS304)). ) can be made.

Meanwhile, the touch sensor assembly 800 may be provided inside the upper part 630 .

Specifically, the touch sensor assembly 800 includes a main substrate 890 configured in a stack structure and the remaining substrates 810 (touch substrate 820, protection substrate 860, indicator substrate 880) as well as a piezoelectric substrate. A disk 830 and a holder 840 may be included.

First, the touch substrate 820 may be attached to the lower surface of the top panel 571 on which the touch points 53 are marked, and may be made of a printed circuit board (PCB) having a predetermined thickness.

Also, a first adhesive member T1 in the form of a double-sided tape may be attached to an upper surface of the touch substrate 820, that is, a surface opposite to the surface on which the piezo disk 830 is disposed. That is, the upper surface of the touch substrate 820 may be attached to the lower surface of the upper panel 571 through the first adhesive member T1.

Also, the second adhesive member T2 may be attached to the lower surface of the touch substrate 820, and through this, watertightness of the piezo disk 830 and the holder 840 to be described below is possible.

In addition, the touch substrate 820 corresponds to a touch area (52 in FIG. 3) including a plurality of touch points 53 displayed on the top panel 571 constituting the handle coupling portion (570 in FIG. 3).

For reference, a plurality of touch points 53 are spaced apart in a line on the top panel 571, and a hole (see FIG. 9 in FIG. 822) is formed, and more detailed information about the touch substrate 820 will be described later.

The upper surface of the protective substrate 860 may be attached to the lower surface of the touch substrate 820 , and open holes OH1 and OH2 may be formed at portions overlapping the holder 840 .

In addition, a second adhesive member T2 in the form of a double-sided tape may be attached to the upper surface of the protective substrate 860 . That is, the upper surface of the protective substrate 860 may be attached to the lower surface of the touch substrate 820 through the second adhesive member T2 .

The outer line of the protective substrate 860 is formed to match the outer line of the touch substrate 820, and the upper surface is attached to the lower surface of the touch substrate 820, and an open hole is formed in a portion overlapping the holder 840 of the upper surface. (OH1, OH2) can be formed.

In addition, a plurality of open holes OH1 and OH2 may be provided to correspond to the holder 840 .

Accordingly, the open holes OH1 and OH2 are formed to surround the piezo disk 830 and the holder 840, and the portion of the protection substrate 860 that does not overlap with the holder 840 is formed to surround the piezo disk 830 and the holder. It may be attached to the lower surface of the touch substrate 820 to seal the 840 .

In this way, the piezo disk 830 may not be exposed to air through the sealing structure using the protective substrate 860 . In addition, by preventing the piezo disk 830 from being exposed to air, it is possible to prevent the piezo disk 830 from being oxidized and also to prevent poor electrical contact due to oxidation.

For reference, when attaching the touch substrate 820 to the top panel 571 through the first adhesive member T1, the touch substrate 820 must be compressed using a device such as a roller. However, during a compression operation using a device such as a roller, the piezo disk 830 or the holder 840 attached to the touch substrate 820 may be deformed or damaged.

However, in the embodiment of the present invention, the protective substrate 860 is attached to the lower surface of the touch substrate 820 to seal and protect the piezo disk 830 and the holder 840, such as rollers. Deformation or breakage of the piezo disk 830 and the holder 840 can be prevented even during the compression operation using the piezo disk 830 .

In particular, open holes OH1 and OH2 are formed in portions of the protection substrate 860 overlapping the holder 840, and portions not overlapping the holder 840 are formed as flat surfaces to form a flat surface on the lower surface of the touch substrate 820. Since it is attached, it is easy to compress evenly using equipment such as a roller.

Meanwhile, the protective substrate 860 may be made of a material having high rigidity, low molding shrinkage, and low warpage. That is, the protective substrate 860 may be formed of at least one of, for example, modified polyphenylene oxide (MPPO), polybutylene terephthalate (PBT), and polycarbonate (PC), but is not limited thereto.

In addition, a portion of the protective substrate 860 excluding the open holes OH1 and OH2 (that is, a portion that does not overlap with the holder 840 and is attached to the lower surface of the touch substrate 820) is provided between neighboring piezo disks. It can act as an isolating bulkhead.

For reference, if the user strongly presses the touch point 53 or presses an area other than the touch point (eg, an area between the touch points), the force is transmitted to another piezo disk that was not intended to be touched, and the product may malfunction. can In addition, when the length of the touch substrate 820 is long and the area of the top panel 571 is large, a user's touch operation causes the touch substrate 820 to bend or the top panel 571 to slosh and sway, resulting in product failure. It may malfunction.

However, in an embodiment of the present invention, since the protective substrate 860 serves as a barrier separating neighboring piezo disks, it is possible to prevent force from being transmitted to another piezo disk that is not intended to be touched. In addition, since the protective substrate 860 may be made of at least one of MPPO, PBT, and PC, bending of the touch substrate 820 or sloshing of the top panel 571 may be prevented. That is, since the protective substrate 860 prevents transmission of erroneous force and bending of the touch substrate 820, the possibility of malfunction of the product can be minimized.

For reference, the protection substrate 860 may be electrically connected to the touch substrate 820 and the indicator substrate 880, and thus a user's touch input may be received from the touch substrate 820 and transmitted to the indicator substrate 880. . Of course, a touch input transmitted to the indicator substrate 880 may be transmitted to the main substrate 890 .

An upper surface of the indicator substrate 880 may be attached to a lower surface of the protective substrate 860, and one or more light emitting elements 883 may be provided in a portion that does not overlap with the protective substrate 860.

Also, a third adhesive member T3 in the form of a double-sided tape may be attached to the upper surface of the indicator substrate 880 . That is, the upper surface of the indicator substrate 880 may be attached to the lower surface of the protective substrate 860 through the third adhesive member T3.

The indicator substrate 880 may include a first portion 880a overlapping the protective substrate 860 and a second portion 880b non-overlapping the protective substrate 860 .

Specifically, a first boss groove BH1 is formed on one side of the area where the first and second parts 880a and 880b come into contact, and a second boss groove BH1 is formed on the other side of the area where the first and second parts 880a and 880b contact each other. A boss groove BH2 may be formed. Also, the outer line of the first portion 880a may be formed to match the outer line of the protective substrate 860 .

These first and second boss grooves BH1 and BH2 may overlap with third and fourth boss grooves BH3 and BH4 to be described later, respectively. In addition, the first and second boss portions BS1 and BS2 may be inserted and coupled to the first and second boss grooves BH1 and BH2, respectively.

For reference, as shown in FIG. 8 , the first and second boss portions BS1 and BS2 may be formed to extend upward from the inner wall of the upper portion 630 of the handle 600 .

Meanwhile, an indicator cover 886 may be further provided on the indicator substrate 880 to protect one or more light emitting devices 883 from external impact or heat.

As shown in FIG. 6 , the indicator cover 886 may be mounted to cover one or more light emitting elements 883, and the same number of holes as the one or more light emitting elements 883 may be formed.

For reference, one or more light emitting elements 883 are arranged spaced apart in a line to match the above-described display hole 51, and holes formed in the indicator cover 886 may also be formed spaced apart in a line to match them. Through this, light emitted from one or more light emitting devices 883 may be transferred to the aforementioned display hole 51 through a hole formed in the indicator cover 886 .

In addition, the light emitting element 883 may include, for example, a light emitting diode (LED), and the indicator cover 886 may be made of, for example, a rubber material (eg, nitrile-butadiene rubber (NBR)). It may, but is not limited thereto.

For reference, although not shown in the drawing, the indicator substrate 880 may further include various parts required to drive one or more light emitting elements 883 .

The main substrate 890 is disposed below the indicator substrate 880 and is provided with a controller (not shown) that receives a user's touch input from the touch substrate 820 and controls driving of one or more light emitting elements 883. can

Here, the control unit may serve to control the operation of not only the light emitting element 883 but also various parts provided in the electrical pot 1, and may include the touch substrate 820, the protective substrate 860, and the indicator substrate 880. ) and electrically connected.

Also, the outer line of the main substrate 890 may be formed to match the outer line of the indicator substrate 880 .

Further, in the main substrate 890, a third boss groove BH3 is formed at a portion overlapping the first boss groove BH1, and a fourth boss groove BH4 is formed at a portion overlapping the second boss groove BH2. can be formed

The first and second boss portions BS1 and BS2 may be inserted and coupled to the third and fourth boss grooves BH3 and BH4, respectively.

That is, since the first boss portion BS1 formed to extend upward is inserted into and coupled to the first and third boss grooves BH1 and BH3, the first boss portion BS1 extends one side of the main substrate 890 upward. that can be supported.

In addition, the second boss portion BS2 formed to extend upward is inserted into and coupled to the second and fourth boss grooves BH2 and BH4, so that the second boss portion BS2 moves the other side of the main board 890 upward. that can be supported.

As described above, the touch substrate 820, the protective substrate 860, the indicator substrate 880, and the main substrate 890 are sequentially stacked to form a stacked substrate structure.

In addition, by inserting the first and second boss portions BS1 and BS2 into the first to fourth boss grooves BH1 to BH4, the stacked substrate structure may be supported upward so as not to be separated from the top panel 571.

A first adhesive member T1 is attached to the top surface of the touch substrate 820, a second adhesive member T2 is attached to the top surface of the protection substrate 860, and a third adhesive member T2 is attached to the top surface of the indicator substrate 880. As the member T3 is attached, the stacked substrate structure can be stably maintained.

For reference, the first to third adhesive members T1 to T3 may include, for example, double-sided tape. In addition, at least one of the first to third adhesive members T1 to T3 may be formed with a thin thickness (eg, 0.05 mm) to facilitate power transfer upon touch.

A high-performance acrylic adhesive may be applied to at least one of the first to third adhesive members T1 to T3 and a primer may be applied. For reference, adhesive strength can be additionally secured by applying a primer to the adhesive member. In addition, at least one of the first to third adhesive members T1 to T3 may have heat resistance to high temperatures (eg, heat resistance to a temperature of 849° C. or more and 204° C. or less).

That is, since a high-performance acrylic adhesive is applied to an adhesive member having heat resistance (at least one of the first to third adhesive members T1 to T3) and a primer is applied, the adhesive strength of the adhesive member is increased for a long period of time (eg, 10 years or more), and through this, the long-term reliability of the adhesive member can be improved.

In addition, since at least one of the first to third adhesive members T1 to T3 has an insulation resistance of a certain level or higher (eg, an insulation resistance of 1 MΩ or higher), human static electricity may flow into the product or leakage current of the circuit (eg, an insulation resistance of 1 MΩ or higher). For example, leakage current of the touch substrate 820) may be prevented from being transmitted to the human body. Furthermore, circuit damage (eg, damage to the touch substrate 820) can be prevented by preventing the inflow of static electricity, and electric shock accidents or touch quality deterioration due to microcurrent can be prevented by preventing transmission of leakage current to the human body. there is.

For reference, as shown in FIG. 7 , the second adhesive member T2 may include a double-sided tape having the same shape as a portion of the front surface of the protective substrate 860 that does not overlap with the open holes OH1 and OH2. there is.

As such, the touch sensor assembly 800 and the peripheral structure of the electric pot 1 according to the embodiment of the present invention have the above-described configuration and characteristics. Hereinafter, referring to FIGS. 9 to 15, FIG. 7 The illustrated touch substrate 820, piezo disk 830, and holder 840 will be described in more detail.

FIG. 9 is an enlarged view of a portion A of the touch substrate shown in FIG. 7 . FIG. 10 is a diagram for explaining other examples of the touch substrate shown in FIG. 9 . FIG. 11 is a diagram explaining the piezo disk shown in FIG. 7 . FIG. 12 is a diagram explaining the holder shown in FIG. 7; 13 is a cross-sectional view illustrating an assembled state of some components of the touch sensor assembly of FIG. 7 . FIG. 14 is a plan view illustrating an assembled state of some components of the touch sensor assembly of FIG. 7 . Fig. 15 is a bottom view of Fig. 14;

First, referring to FIGS. 3, 9, and 10 , holes 822 are formed at positions corresponding to the touch points 53 of the top panel 571 in the touch substrate 820 . For reference, in the embodiment of the present invention, the hole 822 is expressed as having a polygonal shape, but the shape of the hole is not necessarily limited thereto.

The center of the hole 822 may be aligned with the center of the touch point 53 of the top panel 571 . In addition, the inner circumferential surface of the hole 822 is provided with a leg portion 824 extending from the inner circumferential surface to the center of the hole 822 . Also, a pressing portion 826 aligned with the center of the hole 822 is connected to the front end of the leg portion 824 .

The pressing portion 826 corresponds to the shape of the piezo disk 830 to be described later, and may have a slightly smaller size than the piezo disk 830 . For reference, in the embodiment of the present invention, a disk-shaped piezo disk 830 and a corresponding circular pressing unit 826 may be implemented, but the present invention is not limited thereto. The pressing portion 826 and the inner circumferential surface of the polygonal hole 822 are interconnected by a leg portion 824 extending from the center of each side of the polygon to the pressing portion 826 .

The structure connecting the pressing part 826 disposed at the center of the hole 822 to the inner circumferential surface of the hole 822 through the leg part 824 makes the behavior of the pressing part 826 flexible. That is, when the user presses the touch point 53 of the top panel 571, the pressing force is transmitted to the pressing part 826, and the pressing part 826 touches the touch substrate through the relatively thin leg part 824. Since it is connected to the body of the 820 (ie, the inner circumferential surface of the hole 822), the pressing portion 826 can be pressed together in compliance with the user's pressing force. That is, the pressing portion 826 may be provided on the touch substrate 820 to impart flexibility.

Therefore, in the embodiment of the present invention, the structure in which the pressing part 826 is disposed at the center of the hole 822 through the four leg parts 824, while the pressing part 826 flexibly moves in response to the user's touch pressure Also, as long as it can have sufficient durability against repetitive pressing operations, it can be changed to any other form.

For example, as a modified example of the above structure (see FIGS. 9 and 10 (a)) provided with four leg parts at 90 ° intervals, a beam structure (beam) such that the distance between the leg parts is 180 ° ( (b) of FIG. 10) or a cantilever structure having only two legs at 90° intervals (see (c) of FIG. 10) or a cantilever structure having only one leg (see (d of FIG. 10) )), etc. are also applicable. In particular, since the cantilever structure conforms to and deforms the user's touch pressure better than other structures, touch sensitivity can be further increased.

Meanwhile, as shown in FIG. 9 , a fixing surface 828 capable of fixing a fixing leg portion ( 848 in FIG. 12 ) of a holder ( 840 in FIG. 12 ) to be described later is provided near the hole 822 . For reference, although the fixing surface 828 protrudes into the polygonal hole 822 in FIG. 9 , the position of the fixing surface 828 is not necessarily limited thereto.

In an embodiment of the present invention, the long side of the polygonal hole 822 may be aligned in a direction corresponding to the length direction or the width direction (ie, a direction orthogonal to the length direction) of the touch substrate 820 . In addition, since the fixing surface 828 is provided on the short side of the hole 822, the insertion hole (841 in FIG. 12) of the holder (840 in FIG. 12), which will be described later, depends on the arrangement direction of the long side of the hole 822. It may be configured in an open form toward the side or front of 820. Accordingly, an operation of inserting the piezo disk 830 may be more easily performed.

For reference, when the hole 822, the leg portion 824, the pressing portion 826, and the fixing surface 828 are formed on the touch substrate 820, the leg portion 824 and the pressing portion are formed on the touch substrate 820. 826 and the fixing surface 828 can be manufactured at once by drilling the rest of the hole portion.

In addition, the touch board 820 is provided with electrical wires, one of which is a first wire 8201 passing through the pressing part 826 and the leg part 824, and the other is a second wiring passing through the fixing surface 828. It is the wiring 8202. Here, the first and second wires 8201 and 8202 are for determining whether pressure is applied to the piezo disk, which will be described later. That is, when the piezo disk receives pressure and a potential difference is generated, electromotive force may be sensed through the first and second wires 8201 and 8202 .

Meanwhile, referring to FIGS. 7, 12, and 13 , a plurality of holders 840 are fixed to the hole 822 of the touch substrate 820 . In addition, when the holder 840 is fixed to the touch substrate 820, a piezo disk 830 to be described later may be inserted into a space formed between the holder 840 and the touch substrate 820 to fix the piezo disk 830. there is.

The holder 840 includes a bottom support 842 having a polygonal shape that can cover most of the hole 822 of the touch substrate 820 .

When the holder 840 is fixed to the touch substrate 820, the lower surface support 842 is spaced apart from the surface (ie, lower surface) of the touch substrate 820 by a predetermined distance. A gap between the bottom support portion 842 and the surface of the touch substrate 820 may be defined by a side support portion 846 bent at a substantially right angle from an outer edge of the bottom support portion 842 .

Further, a fixing leg portion 848 fixed to the fixing surface 828 of the touch substrate 820 by soldering or the like is provided at an end of the side support 846 . That is, the fixing leg portion 848 may be electrically connected to the fixing surface 828 by soldering.

Specifically, a total of four fixing surfaces 828 of the touch substrate 820 are provided, one pair at a short side of the polygonal hole 822, and four fixing leg portions 848 are also provided at corresponding positions. do. In addition, the fixing leg portion 848 is formed in a flat shape in contact with the fixing surface 828, and a via-hole 849 or the like may be formed at an end thereof to increase soldering adhesion with the fixing surface 828. there is.

As such, the fixing leg portion 848 is disposed along the longitudinal direction or the width direction of the touch substrate 820, and the insertion hole 841 of the holder 840 is disposed along the long side of the hole 822 in the direction of disposition of the touch substrate 820. It may be open toward the side (ie, the direction perpendicular to the longitudinal direction) or the front (ie, the longitudinal direction) of the side. Accordingly, an operation of inserting the piezo disk may be more easily performed.

The side support 846 is provided in a form bent at right angles from two short sides and one long side among the four sides of the polygonal lower surface support portion 842 . That is, the side support 846 supports the side of the piezo disk 830 inserted into the holder 840 to prevent the piezo disk 830 from being separated from the holder 840 during assembly. The fixed leg part 848 is provided at the end of the side support part 846 provided on the two short sides of the lower support part 842 . In addition, an insertion hole 841 into which a piezo disk 830 to be described later can be inserted is formed on the other long side of the bottom support part 842 where the side support part 846 is not provided. An arc-shaped guide groove 847 is formed in the insertion hole 841 to guide an end of the piezo disk 830 toward the insertion hole 841 when a circular flat plate-shaped piezo disk 830 to be described later is inserted.

The lower surface support portion 842 is a portion that supports the lower surface ( 834 in FIG. 11 ) of the piezo disk 830 . A pressing protrusion 843 for pressing and supporting the lower edge of the piezo disk 830 is provided near an outer edge of the lower surface support part 842 . The pressing protrusion 843 is located at a position that does not overlap with the first pole 836 provided on the upper surface (832 in FIG. 11) of the piezo disk 830 (that is, a position outside the first pole 836), which will be described later. are provided

Also, the first pole 836 provided at the center of the top surface (832 in FIG. 11) of the piezo disk 830 slightly protrudes from the top surface (832 in FIG. 11) of the piezo disk 830. Also, the first pole 836 contacts the pressing portion 826 of the touch substrate 820 and is supported by the touch substrate 820 .

Therefore, the flexibly moving pressing part 826 presses the first pole 836 protruding from the upper surface (832 in FIG. 11) of the piezo disk 830, and complementary thereto, the pressing protrusion 843 ) may press the edge of the lower surface (834 in FIG. 11) of the piezo disk 830 that does not overlap with the first pole 836. Accordingly, the piezo disk 830 can be tightly supported while minimizing the load applied to the potential difference generating portion of the piezo disk 830 .

In addition, a slit 844 cut in an arc shape is provided around the center point of the lower surface support portion 842 of the holder 840 . For reference, the slit 844 is provided inside the pressing protrusion 843 .

Slit 844 can also facilitate deformation around slit 844 . Therefore, the central part of the lower surface support part 842 conforms to some degree to the deformation of the central part of the lower surface (834 in FIG. can be transformed together. This is the same even when the user presses the touch point (53 in FIG. 3) of the top panel (571 in FIG. 3).

For reference, the holder 840 may be made of a metal material capable of conducting electricity, and a flat metal plate is formed through press processing and piercing processing to form the above-described pressing protrusion 843, slit 844, and side support portion 846. It can be easily molded into the shape of a back.

Further, the holder 840 is energized to the second wire 8202 through the fixing surface 828 . Further, the holder 840 is fixed to the fixing surface 828 through the fixing leg portion 848, and the fixing surface 828 has a second pole ( 838), is electrically connected to the second pole 838, and can be electrically connected to the second wire 8202 provided on the touch substrate 820.

Meanwhile, referring to FIGS. 11 to 13 , the piezo disk 830 has a second pole 838 of a metal plate having an upper surface 832 and a lower surface 834 and a first stacked at the center of the upper surface 832. pole 836. The first pole 836 may have a shape slightly thickly protruding from the central portion of the surface of the second pole 838 . Also, the first pole 836 may be made of, for example, ceramic, and the second pole 838 may be made of a metal material capable of conducting electricity. Also, a conductive layer 8361 such as silver (Ag) may be coated on the surface of the first electrode 836 to conduct electricity.

The piezo disk 830 may have, for example, a circular flat plate shape, and may be provided in plurality. In addition, the diameter of the piezo disk 830 may be equal to or slightly smaller than the distance between the side support parts 846 provided on the short side of the bottom support part 842 of the holder 840 described above.

In addition, the piezo disk 830 may be inserted between the touch substrate 820 and the holder 840 fixed to the touch substrate 820, and when the piezo disk 830 is inserted, the guide groove 847 forms the piezo disk ( 830) may guide the insertion direction. When inserting the piezo disk 830, align the upper surface 832 on which the first pole 836 is stacked to face the touch substrate 820 and the lower surface 834 to face the holder 840. Insert (830).

When pressure is applied to the first pole 836 and the second pole 838 of the piezo disk 830, a potential difference is generated between the first pole 836 and the second pole 838. Corresponding to the principle of the piezo disk 830, the pressing portion 826 of the touch substrate 820 in contact with the first pole 836 has a wiring surface exposed so as to be energized with the first pole 836, and the touch substrate ( Even if the leg portion 824 of the 820 contacts the upper surface 832 of the second pole 838, the wire 1201 is not exposed so that current is not applied.

In addition, the wiring surface of the pressurization part 826 may include a connection material 8261 made of copper or gold, and each of the plurality of first wires 8201 may be electrically connected to the connection material 8261 .

For reference, the holder 840 is made of a metal material having electrical conductivity and is energized in contact with the lower surface 834 of the second pole 838 .

In addition, the first wire 8201 of the pressing part 826 may be connected to the touch substrate 820 via the leg part 824 . Also, the fixed leg portion 848 of the holder 840 and the fixed surface 828 of the touch substrate 820 that are soldered may also be connected to the touch substrate 820 through the second wire 8202 .

Accordingly, when the user presses the touch point (53 in FIG. 3), the pressing unit 826 is pressed with a predetermined force F and presses the piezo disk 830. At this time, the pressing portion 826 presses the central portion of the upper surface 832 of the piezo disk 830, and the pressing protrusion 843 of the holder 840 supports the edge of the lower surface 834 of the piezo disk 830. Accordingly, the piezo disk 830 is deformed by receiving the moment M, and a potential difference is generated between the first pole 836 and the second pole 838. The minute current according to the electromotive force generated by this process is transmitted to the controller (not shown) provided on the main substrate (890 in FIG. 7) through the wiring of the touch substrate 820, and the controller It can be recognized that 53 of 3) has been touched.

Here, the conductive layer 8361 coated on the surface of the connecting member 8261 and the first pole 836 exposed to the pressing part 826 may be corroded over time.

For example, a connection member 8261 made of copper (Cu) is formed in the pressing part 826, and a conductive layer 8361 made of silver (Ag) is formed in the first electrode 836 made of ceramic. Therefore, when the connection material 8261 and the conductive layer 8361 are exposed to air for a long time, oxidation occurs, and as a result, an abnormality may occur in the electrical connection between the connection material 8261 and the conductive layer 8361.

However, the touch sensor assembly 800 according to an embodiment of the present invention can prevent this problem through the aforementioned protective substrate 860 .

As such, some parts of the touch sensor assembly 800 (that is, the touch substrate 820, the piezo disk 830, and the holder 840) have the above-described characteristics. Hereinafter, FIG. 7, FIG. 12 and FIG. Referring to 13, an example of an assembly sequence of some parts of the touch sensor assembly will be described.

First, the holder 840 is fixed to the lower surface of the touch substrate 820 (opposite to the surface facing the top panel 571) by soldering. This can be done in an automated process.

Next, the piezo disk 830 is inserted between the holder 840 and the touch substrate 820 . When inserting the piezo disk 830, since the insertion direction of the piezo disk is guided by the guide groove 847, the operator can easily insert the piezo disk 830 manually. Also, while the piezo disk 830 has a circular shape, the side support 846 of the holder 840 corresponds to a polygonal side shape. Therefore, when an operator puts only the tip of the piezo disk 830 into the insertion hole 841 and presses the piezo disk 830 from behind, the circular edge of the piezo disk 830 guides the piezo disk 830 to the holder 840. Inside, the piezo disk 830 is naturally aligned and inserted.

Figures 14 and 15 show the upper and lower surfaces of the touch portion of the touch sensor assembly 800 in a semi-assembled state in which the holder 840 is fixed to the touch substrate 820 and the piezo disk 830 is inserted in this manner. am.

Next, the second adhesive member T2 is attached to the lower surface of the touch substrate 820 . This too can be done in an automated process.

For reference, the first adhesive member T1 may be stacked with a release paper attached to the surface. Accordingly, when the touch sensor assembly 800 is later attached to the upper panel (571 in FIG. 3) of the handle coupling part (570 in FIG. 3), the adhesive strength of the surface of the first adhesive member (T1) is reduced by removing the release paper. can prevent it from happening.

As such, some parts of the touch sensor assembly 800 may be assembled through the above-described assembly sequence.

As described above, the touch sensor assembly 800 having a stacked substrate structure may be applied to the electrical port 1 according to the embodiment of the present invention.

In addition, in the above-described embodiment, the structure and manufacturing method of the touch sensor assembly based on the electric pot have been described. However, the above-described touch sensor assembly may be used in various fields such as vehicle door panels as well as other types of home appliances including electric pots.

As described above, the present invention has been described with reference to the drawings illustrated, but the present invention is not limited by the embodiments and drawings disclosed in this specification, and various modifications are made by those skilled in the art within the scope of the technical idea of the present invention. It is obvious that variations can be made. In addition, although the operational effects according to the configuration of the present invention have not been explicitly described and described while describing the embodiments of the present invention, it is natural that the effects predictable by the corresponding configuration should also be recognized.

100: pedestal 200: port body
400: lid 500: pot body top joint
600: handle 700: pot body bottom coupling
800: touch sensor assembly 820: touch substrate
830: piezo disk 840: holder
860: protection board 880: indicator board
890: main board

Claims (15)

a touch substrate attached to a lower surface of the upper panel on which touch points are displayed;
a piezo disk in which a first pole and a second pole are stacked and aligned in a direction facing the touch substrate such that the first pole contacts the lower surface of the touch substrate;
a holder supporting side surfaces and lower surfaces of the piezo disk to fix the piezo disk to the lower surface of the touch substrate;
a protective substrate having an upper surface attached to a lower surface of the touch substrate and having an open hole formed at a portion overlapping the holder;
an indicator substrate having an upper surface attached to a lower surface of the protective substrate and having one or more light emitting devices provided on a portion that does not overlap with the protective substrate; and
A main board disposed under the indicator board and provided with a control unit for receiving a user's touch input from the touch board and controlling driving of the one or more light emitting elements.
Touch sensor assembly.
According to claim 1,
The indicator substrate,
a first portion overlapping the protective substrate;
A second portion that does not overlap with the protective substrate
Touch sensor assembly.
According to claim 2,
A first boss groove is formed on one side of the area where the first and second parts contact, and a second boss groove is formed on the other side of the area where the first and second parts contact,
In the main substrate, a third boss groove is formed in a portion overlapping the first boss groove, and a fourth boss groove is formed in a portion overlapping the second boss groove.
Touch sensor assembly.
According to claim 3,
A first boss portion formed to extend upward is inserted into and coupled to the first and third boss grooves, and the first boss portion supports one side of the main board upward,
A second boss portion formed to extend upward is inserted into and coupled to the second and fourth boss grooves, and the second boss portion supports the other side of the main board upward.
Touch sensor assembly.
According to claim 1,
A portion of the protective substrate that does not overlap with the holder is attached to the lower surface of the touch substrate to seal the piezo disk and the holder.
Touch sensor assembly.
According to claim 1,
A first adhesive member providing adhesive force for attaching the touch substrate to the lower surface of the upper panel is attached to the upper surface of the touch substrate;
A second adhesive member providing adhesive force for attaching the protective substrate to the lower surface of the touch substrate is attached to the upper surface of the protective substrate;
A third adhesive member is attached to the upper surface of the indicator substrate to provide adhesive force for attaching the indicator substrate to the lower surface of the protective substrate.
Touch sensor assembly.
According to claim 6,
An acrylic adhesive is applied to at least one of the first to third adhesive members and a primer is applied.
Touch sensor assembly.
According to claim 6,
The second adhesive member includes a double-sided tape having the same shape as a portion of the front surface of the protective substrate that does not overlap with the open hole.
Touch sensor assembly.
According to claim 1,
The touch substrate,
a pressing portion having flexibility, being electrically connected when in contact with the first electrode, and being electrically connected to a first wire provided on the touch substrate;
A fixing surface supporting the second pole so that the piezo disk is fixed to the lower surface of the touch substrate, electrically connected to the second pole, and electrically connected to a second wire provided on the touch substrate.
Touch sensor assembly.
According to claim 9,
A hole is formed in a region of the touch substrate corresponding to the touch point;
The pressing portion is connected to an end of a leg portion extending from the inner circumferential surface of the hole to the central portion of the hole.
Touch sensor assembly.
According to claim 9,
the holder,
a bottom support portion for supporting a bottom surface of the piezo disk;
a side support portion extending from an edge of the bottom support portion toward the touch substrate to support a side surface of the piezo disk;
And a fixing leg portion extending outward from the side support portion in a direction parallel to a plane including the touch substrate and fixed to the fixing surface.
Touch sensor assembly.
a top panel displaying touch points touched by a user;
a touch substrate attached to a lower surface of the upper panel corresponding to the touch point;
a piezo disk in which a first pole and a second pole are stacked and aligned in a direction facing the touch substrate such that the first pole contacts the lower surface of the touch substrate;
a holder supporting side surfaces and lower surfaces of the piezo disk to fix the piezo disk to the lower surface of the touch substrate;
a protective substrate having an upper surface attached to a lower surface of the touch substrate and having an open hole formed at a portion overlapping the holder;
an indicator substrate having an upper surface attached to a lower surface of the protective substrate and having one or more light emitting devices provided on a portion that does not overlap with the protective substrate;
a main substrate disposed under the indicator substrate and provided with a controller configured to receive a user's touch input from the touch substrate and control driving of the at least one light emitting element; and
A handle coupled to a lower end of the upper panel and provided with the touch substrate, the piezo disk, the holder, the protection substrate, the indicator substrate, and the main substrate inside the upper portion.
electric pot.
According to claim 12,
The indicator substrate,
a first portion overlapping the protective substrate;
A second portion that does not overlap with the protective substrate
electric pot.
According to claim 13,
A first boss groove is formed on one side of the area where the first and second parts contact, and a second boss groove is formed on the other side of the area where the first and second parts contact,
In the main substrate, a third boss groove is formed in a portion overlapping the first boss groove, and a fourth boss groove is formed in a portion overlapping the second boss groove.
electric pot.
According to claim 14,
First and second bosses formed to extend upward are provided on an upper inner wall of the handle,
The first boss portion is inserted into and coupled to the first and third boss grooves to support one side of the main board upward,
The second boss portion is inserted into and coupled to the second and fourth boss grooves to support the other side of the main board upward.
electric pot.