JP3246416B2 - Yagatsutatsu - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold that enables a heater or the like to be controlled wirelessly by a remote controller embedded in a couchtop, and more particularly to an improvement in the structure of the couchtop.

[0002]

2. Description of the Related Art In a conventional yagatsu, the heater temperature control is generally set by a controller provided in the middle of a power cord, but the controller is hidden under a kotatsu futon. Frequently, it is difficult or stepping on the foot.

[0005] Therefore, a remote control is built in a top plate using electromagnetic induction, electromagnetic coupling, electromagnetic waves, and the like, and a remote control of the heater by wireless has been developed. FIG. 2 shows an exploded perspective view of a ratchet that has already been proposed by the present applicant.
Has a built-in remote control operation / display unit 203 and a remote control transmission unit 205.

The operation / display unit 203 is used to turn on / off the heater, raise and lower the temperature, and display the set temperature, and is attached to a hole 208 provided at one corner of the top plate 201. The transmitting unit 205 includes a transmitting circuit and a transmitting antenna that modulates and transmits a microwave with a control signal from the operation / display unit 203, and the back surface of the top plate 201 facing the heater unit 209 of the kotatsu main body 202. Is attached to a hole 206 formed in the center of the.

[0005] The operation / display unit 203 and the transmission unit 205
Connected by a code 204, this code 204
It is embedded in a groove 207 formed on the back surface of the top plate 201. Note that the heater unit 209 includes a receiving circuit for demodulating the control signal transmitted from the transmitting unit 205 and controlling the heater, and a receiving antenna.

[0006]

[0005] However, in the above-described conventional yagatsu, when home appliances such as a television, an electromagnetic cooker, a microwave oven, and a cordless phone are placed on a top plate,
There is a problem that the shield against the unnecessary electromagnetic field noise generated by them is not sufficient, and the remote control of the rattle malfunctions.

The operation / display unit 203, the transmission unit 205,
In order to embed the cords 204 connecting these components, not only does the top plate 201 need to be complicatedly processed, but also the strength of the top plate decreases.

[0008] Therefore, an object of the present invention is to provide a remote control type or a ratchet that is resistant to noise, has a simple processing of the top plate, and does not decrease in strength.

[0009]

In order to solve the above-mentioned problems, the present invention embeds a transmitter of a remote controller having an operation / display function in a top plate, and covers the rear surface of the top plate with the transmitter. A first metal foil and an insulating sheet are sequentially attached, and a microstrip antenna patch having a shape that resonates at a microwave frequency using the first metal foil as a ground conductor is provided at both ends. Paste the second metal foil that has a shape connected by a strip line,
The transmitter communicates from one microstrip antenna patch to the other microstrip antenna patch and from the other microstrip antenna patch to the main body of the ragged ratchet. Is obtained.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION According to the first aspect of the present invention, a first metal foil is applied so as to cover the back surface of a top plate, and an insulating sheet having substantially the same size is further applied so as to cover the lower surface. On the lower surface, a microstrip antenna patch having a shape that resonates at the frequency of microwaves using the first metal foil as a ground conductor has a microstrip antenna patch at both ends, and a microstrip line connecting the both ends with a microstrip line. A microstrip antenna is formed by attaching two metal foils, and one microstrip antenna patch of the second metal foil is provided to a transmitting unit having an operation / display function embedded in the top plate. The microstrip antenna patch is opposed to the opening formed in the first metal foil via an insulating sheet, and the other microstrip antenna patch is provided on a heater provided on the body of the main body of the ratchet. Disposed at a position facing the antenna,
Through the microstrip antenna the microwave modulated by the control signal of the heater control of the transmission unit,
It is characterized in that communication is possible between the top plate and the main body of the yagatsutatsu.

[0011] This has the effect of exhibiting a strong shielding effect against external noise from home appliances such as televisions, electromagnetic cookers, microwave ovens, cordless phones, etc. and realizing a structure that is easy to process and does not reduce the strength of the top plate. Have.

Embodiment 1 Hereinafter, an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a perspective view of the cradle of the present invention. In particular, a top plate is shown in an exploded perspective view for explaining the antenna structure.

In the figure, 101 is a top plate, 102 is a first metal foil, 103 is an insulating sheet, and 104 is a second metal foil made of the same material as the first metal foil, which are adhered in order. The first metal foil 102 and the insulating sheet 103 have substantially the same size as the top plate 101. Reference numeral 105 denotes a transmission unit in which an operation / display panel and a transmission circuit are integrated, and is attached to an embedding hole 106 opened in the top plate 101.

The second metal foil 104 is formed by connecting two microstrip antenna patches 108 and 109 with a microstrip line 110. The microstrip antenna patch 109 is located below the transmitting unit 105 and the microstrip antenna patch 108 is located on the kotatsu main body 11.
The second heater unit 111 is located on the upper surface. Thus, the first metal foil 102, the insulating sheet 103 and the second metal foil 104 constitute a microstrip antenna.

The configurations of the heater unit 111 and the body of the kotatsu 112, which are provided integrally with the receiving antenna and the receiving circuit, are the same as those of the prior art.

Reference numeral 107 denotes a coupling window formed by opening the first metal foil. The coupling window 107 has substantially the same shape as the microstrip antenna patch 109, and is opposed to the microstrip antenna patch 109 and the transmitting unit 105. Therefore, although not shown, a transmitting antenna provided on the lower surface of the transmitting unit 105 is coupled to the microstrip antenna patch 109 via the insulating sheet 103.

Here, when the operation button of the transmitting unit 105 is pressed to change the on / off of the kotatsu and the temperature setting, the microwave modulated by the control signal to be changed is radiated from the transmitting antenna of the transmitting unit 105. You. The radiated microwave is input to the microstrip antenna patch 109 through the coupling window 107. The microstrip antenna patches 108 and 109 are shaped so as to resonate at a microwave frequency using the first metal foil 102 as a ground conductor. It is re-emitted to the receiving antenna of unit 111. The heater unit 111 controls the heater by demodulating the received microwave.

In the ragged top plate configured as described above, the first metal foil 102 serves as a ground conductor of the microstrip antenna and also serves as a shield conductor against external noise from the top surface of the top plate. It is possible to prevent a malfunction of the kotatsu remote control when home appliances are placed on the top plate.

Further, only one embedding hole 106 is provided at one corner of the top plate.
The microstrip antenna can be attached and configured simply because there is, so that there is no need for complicated processing like a conventional top plate, workability is improved, and the strength of the top plate can be improved.

[0020]

As described above, according to the present invention, a strong top plate which is resistant to external noise from home appliances such as televisions, electromagnetic cookers, microwave ovens, cordless phones, etc. and which does not require complicated processing. realizable.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a ratchet in one embodiment of the present invention.

FIG. 2 is an exploded perspective view of a conventional cradle.

[Explanation of symbols]

 REFERENCE SIGNS LIST 101 Top plate 102 First metal foil 103 Insulating sheet 104 Second metal foil 105 Transmitter 106 Embedding hole 107 Coupling window 108, 109 Microstrip antenna patch 110 Microstrip line 111 Heater unit 112 Kotatsu main body

Claims (1)

(57) [Claims] 1. A first metal foil covering a back surface of a top plate,
Further, an insulating sheet of substantially the same size is pasted in order so as to cover the lower surface, and a microstrip antenna patch having a shape resonating at a microwave frequency using the first metal foil as a ground conductor is attached to the lower surface. A microstrip antenna is formed by attaching a second metal foil having a shape that has both ends and connects the both ends with a microstrip line, and one microstrip antenna patch of the second metal foil is , A transmitting section having an operation / display function embedded in the top plate, facing an opening formed in the first metal foil via an insulating sheet, and the other microstrip antenna patch is located on the main body side Placed at a position facing a receiving antenna provided on a heater of the transmitter, and modulated by a control signal for heater control of the transmitter. Waves can be communicated between the top plate and the main body through the microstrip antenna.