JPH08200715A - Electric heater - Google Patents

Abstract

PURPOSE: To appropriately heat the body of a user with a temperature distribution of 'keeping one's head cool and felt warm', regardless of the lying direction of the user, when the user sleeps while placing a bedding on the top of a carpet-form heater, and warming the bedding. CONSTITUTION: In the lying direction with one end of a carpet-form heater 1 as a reference, a first heating element 11 is wired into a wiring pattern of a cooler top and warmer bottom. Then, in the lying direction with the other end of the carpet-form heater 1 as a reference, a second heating element 12 is wired into a wiring pattern of 'keeping one's head cool and feet warm'. Then, a switching means which connects power to either one of the first heating element 11 and second heating element 12 is provided. By this method, the body of a user is appropriately warmed with a temperature distribution of αkeeping one's head cool and feet warm' by either one of the heating elements 11, 12 corresponding to the lying direction, regardless of the lying direction of the user to both end directions of the carpet-form heater 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric heating appliance such as an electric carpet that can be used for sleeping.

[0002]

2. Description of the Related Art Conventionally, in an electric carpet, generally, heating elements are evenly arranged on the entire surface of the flooring object, and the entire surface of the flooring object is warmed by electrifying the heating element, or a half surface of the flooring object is selected. The surface is warmed.

In such an electric carpet, for example, as described in Japanese Utility Model Publication No. 4-7444, a futon is laid on the electric carpet, and the electric carpet is used to sleep while warming the futon. In consideration of the above, there is an electric carpet that warms the futon to have a temperature distribution suitable for sleeping.

That is, in the electric carpet of Japanese Utility Model Publication No. 4-7444, a sleeping heating element and an auxiliary heating element capable of heating the entire surface of the lying object are wired to the flooring object to sleep. The heating element for use is divided into two wiring patterns corresponding to the upper body part and the lower body part when a person sleeps on the futon on one side of the floor object,
In the wiring pattern on the upper body side, the wiring of the heating element is sparse, and in the wiring pattern on the lower body side, the wiring of the heating element is dense. When sleeping, by energizing only the sleeping heating element, the lower body side is warmer than the upper body side of the futon,
The temperature distribution of head cold foot heat suitable for sleeping is obtained.

A power cord for energizing each heating element is drawn out from the other end side of the spread object.

[0006]

However, in the conventional electric carpet, since the sleeping heating element is wired with one end of the floor object as a reference, it is necessary to sleep with one end side of the floor object as the head side. There is only one sleeping direction. Therefore, even if the floor covering is laid according to the sleeping direction of the user at the place of use, the power cord extending from the floor covering may not reach depending on the position of the outlet at the place of use. There is a problem that the sleeping direction must be reversed 180 degrees so that the plug can be connected to an outlet, and the sleeping direction should be reversed according to the direction of the spreading object.

The present invention has been made in view of the above circumstances, and an electric heating appliance that can be appropriately warmed by the temperature distribution of head cold foot heat regardless of which direction the user sleeps with respect to the both end directions of the spread object. The purpose is to provide.

[0008]

An electric heating appliance according to claim 1 is provided with a floor object and a first wiring pattern for head cold foot heat along a sleeping direction with one end of the floor object as a reference.
Any of the first heating element and the second heating element, a second heating element wired in a wiring pattern for head cold foot heat along the sleeping direction with the other end of the floor object as a reference. A switching means for energizing one side is provided.

According to a second aspect of the present invention, there is provided an electric heating appliance according to the first aspect.
In the electric heating appliance described above, the switching means switches between energization of the first heating element, energization of the second heating element, and energization of both heating elements.

The electric heating appliance according to claim 3 is the same as that according to claim 1.
Alternatively, in the electric heating appliance as described in 2, the spread object has a surface material and a back material made of the same material, and the first heating element and the second heating element are wired between the surface material and the back material. It is a thing.

[0011]

In the electric heating apparatus according to the first aspect of the present invention, for example, when a bed is laid on a bed object to sleep while sleeping, the switching means is provided regardless of the direction of the user's sleep with respect to the both ends of the bed object. By switching the energization to the first heating element or the second heating element, the first heating element or the second heating element can be appropriately warmed by the temperature distribution of the head cold foot heat.

In the electric heating apparatus according to the second aspect, in addition to the function of the electric heating apparatus according to the first aspect, the entire surface of the spread object can be warmed by switching the power supply to both heating elements by the switching means.

In the electric heating appliance according to claim 3, in addition to the function of the electric heating appliance according to claim 1 or 2, since the surface material and the back material of the floor object are made of the same material, the front surface or the back surface of the floor object. Can be used with any of them facing upward, and, for example, even when connecting a power cord pulled out from one of the four corners of the floor object to an outlet at the place of use, the position of the outlet at the place of use It is possible to connect the power cord to any of the four sides of the floor object at the shortest distance, and there is no restriction on the use position of the floor object.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An electric carpet as an embodiment of the electric heating apparatus of the present invention will be described below with reference to the drawings.

FIG. 1 shows an explanatory view of an electric carpet.
Is a rectangular floor object, and a connector 2 is attached to one corner of the floor object 1, and a connecting cord 3 is attached to the connector 2.
The controller 4 is connected to the controller 4 via a power cord 6 having a plug 5 for connecting an outlet at its tip.

The mat 1 is formed to have a length of 180 cm and a width of 90 cm corresponding to a single-sized futon, for example.
And when using an electric carpet at bedtime,
A futon (not shown) is laid on the mat object 1 so that the head can be directed to either one end or the other end of the mat object 1 in the longitudinal direction so that even if the user sleeps on the mat object, he / she can be appropriately warmed by the cold heat of the head. There is.

Then, the floor object 1 is, as shown in FIG.
The first heating element 11 and the second heating element 12 are wired and the temperature sensing element 13 is also wired on the backing material 10 made of flame-proof polyester felt or the like, and the backing material 10 is provided on the surface thereof. A surface material 14 made of the same material as the above is attached and configured.

The first heating element 11 is made up of one continuous heating wire as shown by the thick solid line in FIG. 1, both ends of which are connected to the connector 2 and is orthogonal to the longitudinal direction of the floor covering 1. From one side edge to the other side edge, it is wired in a substantially comb-tooth-like wiring pattern of head cold foot heat.

The first heating element 11 has a connector 2 for the floor object 1.
The shoulder wiring portion 11a as the first wiring portion, which is wired corresponding to the shoulder position of the user who sleeps on the futon on the litter 1 with reference to one end in the longitudinal direction to which is attached, the waist position of the user Waist wiring portion as a second wiring portion wired corresponding to
11b, and a foot wiring portion 11c as a third wiring portion that is wired corresponding to the position of the user's foot is arranged in a sequentially arranged wiring pattern. Further, the foot wiring portion 11c includes a knee wiring portion 11d that is wired corresponding to the user's knee position and a foot wiring portion 11c that is wired corresponding to the user's foot position.
It is wired in a wiring pattern having e.

Therefore, in the first heating element 11, the gap between the one end edge in the longitudinal direction of the floor covering 1 corresponding to the head position of the user and the shoulder wiring portion 11a corresponds to the back position of the user. The distance between the shoulder wiring portion 11a and the waist wiring portion 11b is such that the waist wiring portion 11b and the foot wiring portion 11 correspond to the user's hip position.
A space is provided between the knee wiring portion 11d and the foot wiring portion 11e, which corresponds to the position between the user's knee and the foot tip. The distance between them is widest between the shoulder wiring portion 11a and the waist wiring portion 11b, between the waist wiring portion 11b and the foot wiring portion 11c, and between the knee wiring portion 11d and the foot wiring. The space between the part 11e is narrowed. Furthermore, the width of the wiring area in the longitudinal direction of the floor covering 1 is arranged such that the width of the shoulder wiring portion 11a, the waist wiring portion 11b, the knee wiring portion 11d, and the toe wiring portion 11e increases in this order.

The second heating element 12 is composed of one continuous heating wire as shown by the thin solid line in FIG. 1, both ends of which are connected to the connector 2 and is orthogonal to the longitudinal direction of the flooring 1. From the other side edge toward the one side edge, the wiring pattern is formed in a substantially comb-tooth-shaped and cold-headed heat pattern.

The second heating element 12 is connected to the connector 2 of the floor object 1.
With the other end opposite to the one end in the longitudinal direction to which is attached as a reference, the shoulder wiring portion 12a as the first wiring portion that is wired corresponding to the shoulder position of the user who sleeps on the futon on the litter 1. ,
The waist wiring portion 12b as the second wiring portion that is wired corresponding to the waist position of the user, and the foot wiring portion 12c as the third wiring portion that is wired corresponding to the foot position of the user are provided. The wiring patterns are arranged in order. Further, the foot wiring portion 12c is a wiring pattern having a knee wiring portion 12d wired corresponding to the user's knee position and a foot wiring portion 12e wired corresponding to the user's foot position. Is wired to.

Therefore, in the second heating element 12, the distance between one end edge in the longitudinal direction of the floor covering 1 corresponding to the head position of the user and the shoulder wiring portion 12a corresponds to the back position of the user. The distance between the shoulder wiring part 12a and the waist wiring part 12b is such that the waist wiring part 12b and the foot wiring part 12 correspond to the user's hip position.
A space is provided between the knee wiring part 12d and the toe wiring part 12e corresponding to the position between the user's knee and the toes. The distance between them is wide between the shoulder wiring portion 12a and the waist wiring portion 12b, and between the waist wiring portion 12b and the foot wiring portion 12c and the knee wiring portion.
The space between 12d and the toe wiring part 12e is narrow. Further, the width of the wiring area in the longitudinal direction of the floor covering 1 is determined by the shoulder wiring portion.
The foot wiring portion 12c is arranged to be larger than the waist wiring portion 12b and the waist wiring portion 12b. The wiring portion 12c for the foot is wired such that the wiring portion 12d for the knee is larger than the wiring portion 12e for the foot.

The shoulder wiring portion 12a of the second heating element 12
Is the wiring part 11d for the knees and the wiring part 11e for the toes of the first heating element 11.
And the waist wiring portion 12b of the second heating element 12 is wired between the waist wiring portion 11b and the knee wiring portion 11d of the first heating element 11, and the second heating element 12 knee wires 12d are first
Wiring between the shoulder wiring portion 11a and the waist wiring portion 11b of the heating element 11 of the second heating element 12 and the toe wiring portion 12e of the second heating element 12 are Shoulder wiring part 11 for heating element 11
It is wired between a and. Then, the first heating element 11 and the second heating element 12 are wired at a uniform pitch in the longitudinal direction of the spread object 1.

Further, the temperature sensitive body 13 is composed of one continuous heat sensitive wire as shown by the one-dot chain line in FIG. 1, both ends of which are connected to the connector 2 and are orthogonal to the longitudinal direction of the spread object 1. It is wired in a substantially comb-like shape between the heating elements 11 and 12 from one side edge to the other side edge.

FIG. 3 shows a controller 4, in which a printed circuit board and the like mounted with a control circuit for controlling energization of the heating elements 11 and 12 are housed. A changeover switch 21 as a changeover means for changing over the operation mode and a temperature setting switch 22 for setting a desired temperature are slidably attached to one side edge of the front surface of the controller 4. The change-over switch 21 is “OFF” for power supply, “A” for selecting energization to the first heating element 11,
It is possible to switch between “A + B” for selecting energization to both heating elements 11 and 12 and “B” for selecting energization for the second heating element 12.

FIG. 4 shows an electric circuit. A commercial power supply 31 is connected to a series circuit of the first heating element 11 and the conduction control element 32, and a series circuit of the second heating element 12 and the conduction control element 33. The energization control elements 32 and 33 are controlled by the control unit 34 built in the connector 2.

The control unit 34 includes the energization control elements 32 and 33.
Is provided with an energization control unit 35 that controls energization to each of the heating elements 11 and 12, and a temperature detection circuit 36 and a temperature setting circuit 37 are connected to the energization control unit 35. The temperature detection circuit 36 detects the temperature of the spread object 1 via the temperature sensitive body 13 and outputs a detection signal to the energization control unit 35. Temperature setting circuit 37
Sets a target temperature corresponding to the position of the temperature setting switch 22 and outputs it to the energization control unit 35. Then, the energization control unit 35
Is based on the detected temperature detected by the temperature detection circuit 36,
The temperature is controlled so as to approach the target temperature set by the temperature setting circuit 37.

The temperature setting circuit 37 is connected to a timer section 38 and a correction section 39 which operate when the changeover switch 21 is set to the "A" or "B" position. Timer section 38
Starts timing when energization of one of the first heating elements 11 is started, and preset elapsed times T1, T2, T3
A signal is output to the correction unit 39 every time. The correction unit 39 is a timer unit
A correction signal is output to the temperature setting circuit 37 so as to lower the target temperature each time it receives a signal from 38.

Next, the operation of this embodiment will be described.

First, at the place of use, the floor object 1 is placed on the surface material 14 thereof.
Is laid as the upper surface, and the plug 5 of the power cord 6 is connected to the outlet at the place of use.

When used as an electric carpet, the selector switch 21 of the controller 4 is set to "A + B".
By setting a desired temperature with the temperature setting switch 22 in accordance with the position, both heating elements 11 and 12 are energized to uniformly warm the entire surface of the spread object 1. Then, the temperature of the laid object 1 is detected by the temperature sensing element 13, and the energization of both heating elements 11 and 12 is automatically controlled so as to maintain the set temperature.

Next, the case where the electric carpet is used for sleeping will be described.

The mat object 1 is laid according to the place where the futon is laid, but the direction of the mat object 1 is 1 depending on the position of the outlet at the place of use where the plug 5 of the power cord 6 is connected.
It doesn't matter if they oppose at 80 degrees.

A futon is laid on the mat object 1, and the changeover switch 21
To the “A” or “B” position and set the temperature setting switch.
Set the desired temperature with 22. The changeover switch 21 is
For example, as shown in FIG. 1, when one side of the floor object 1 sleeps with its head side aligned with the “A” position, conversely, when the other end side of the floor object 1 sleeps with its head side, Align with "B" position.

Then, as shown in FIG. 1, when sleeping with one end side of the floor covering 1 as the head side, the first heating element 11 is energized by setting the changeover switch 21 to the "A" position. Shoulder wiring portion 11a of the first heating element 11, waist wiring portion
11b, the knee wiring part 11d, and the foot wiring part 11e generate heat, and the shoulders, waist, knees, and feet of the user entering the floor are appropriately warmed, and a comfortable heating feeling of the temperature distribution of the head cold foot heat is obtained. I can sleep well. An example of the temperature warmed by the first heating element 11 for sleeping is as follows: when the set temperature is high, the shoulder temperature is 25 ° C,
Waist 30 ℃, feet 34 ℃, in the middle shoulder 23 ℃, waist 2
7 ℃, foot 30 ℃, shoulders 21 ℃, waist 23 when low
℃, foot 25 ℃.

When sleeping with the other end side of the floor covering 1 as the head side, the second heating element 12 is energized by setting the changeover switch 21 to the "B" position, and the second heating element 12 is turned on.
The shoulder wiring portion 12a, the waist wiring portion 12b, the knee wiring portion 12d, and the toe wiring portion 12e generate heat, and the shoulders of the user entering the floor,
The waist, knees, and toes are properly warmed, and a comfortable heating sensation of the temperature distribution of head cold foot heat can be obtained, resulting in a good night's sleep.

FIG. 5 shows an example of the orientation of the floor covering 1 and the sleeping direction of the user when the surface material 14 of the floor covering 1 is the upper surface. FIG. 5 (a) shows the state in which the first heating element 11 is energized.
Fig. 5 (b) shows an example of using the first heating element 11 of Fig. 1 with the orientation of the floor object 1 reversed from the example of use of Fig. 5 (a). 5 (c) shows a use example in which the user's sleeping direction is opposite to the use example of FIG. 5 (a) and the second heating element 12 is energized, and FIG. 5 (d) is shown in FIG. 5 (a). In contrast to the above usage example, a usage example in which the direction of the bed object 1 is reversed and the sleeping direction of the user is reversed and the second heating element 12 is energized is shown.

Therefore, even if the laid object 1 is laid in the opposite direction corresponding to the position of the outlet at the place of use, the user does not feel feverish when he or she sleeps with either direction of both ends of the laid object 1 as the head side. A comfortable heating feeling of the temperature distribution of can be obtained, and the restriction of the sleeping direction can be solved.

Since the back material 10 and the surface material 14 of the floor object 1 are made of the same material, the front and back of the floor object 1 can be used in reverse.

FIG. 6 shows an example of use of the orientation of the floor covering 1 and the sleeping direction of the user when the back material 10 of the floor covering 1 is the upper surface. FIG. 6 (a) shows a use example in which the front side and the back side of the flooring object 1 are reversed to energize the first heating element 11 with respect to the use example of FIG. 5 (a), and FIG. ) For the usage example of 1)
6 shows an example of use in which the first heating element 11 of FIG. 1 is energized in the opposite direction, and FIG. 6 (c) shows the first example with the user sleeping in the opposite direction to the example of use of FIG. 6 (a). 6 (d) shows an example in which the heating element 12 of FIG. 2 is energized. An example of use of energizing the second heating element 12 will be shown.

Therefore, since the front and back of the floor object 1 can be used together, the power cord 6 can be connected regardless of the position of the outlet at the place of use of the floor object 1.
There is no restriction on the position where the floor object 1 is laid.

In addition, the shoulder wiring portion 11a of each heating element 11, 12
, 12a, wiring parts for waist 11b, 12b, wiring parts for knee 11d, 12d
The foot wiring parts 11e and 12e generate heat, and the shoulders, waist, knees, and toes of the user entering the bed are appropriately warmed, and a comfortable heating sensation of the temperature distribution of the head cold foot heat is obtained, and a good sleep is achieved. In this respect, in the conventional electric carpet, since the sleeping heating element is simply wired in two wiring patterns in which the upper body side is sparse and the lower body side is dense, it is actually necessary for the user to warm up. Despite being on the shoulders, hips and legs
The back and buttocks are also warmed, especially when the backs and buttocks are warmed, which causes discomfort such as feeling hot, which is not sufficient for sleeping.

Further, the target temperature-time graph of FIG. 7 shows the temperature control state after the start of energization when used for sleeping, and the changeover switch 21 is set to the "A" or "B" position to set each heating element. At the same time when the energization of one of 11 and 12 is started, the timer section 38 starts measuring the time, and until the timer section 38 measures the predetermined time T1, the target temperature corresponding to the position of the temperature setting switch 22 is reached. Control toward C1.

When the predetermined time T1 has elapsed, the timer unit 38
Sends a signal to the correction unit 39, the correction unit 39 outputs a correction signal to the temperature setting circuit 37 so as to lower the target temperature, and the temperature setting circuit 37 sets the target temperature C2 lower than the initial target temperature C1. Therefore, the timer unit 38 further sets a predetermined time T2.
Until the time is measured, control is performed toward the target temperature C2.

In this way, the target temperature is set to C3 when the predetermined time T2 has passed, and the target temperature is set to C4 when the predetermined time T3 has passed.

By the way, conventionally, it is configured to maintain a constant temperature even when it is used for sleeping, but if it is set to a temperature at which a moderate warmth is felt at the beginning of use,
There is a problem that it feels hot with the passage of time, or if the temperature is set lower than the initial temperature in anticipation of this, the warmth in the initial use may be insufficient.

Therefore, as described above, by gradually lowering the target temperature with the passage of time, it is possible to continuously maintain a comfortable feeling from the initial stage of use. That is, as shown in the comfort-time graph of FIG. 8, when the temperature is set such that the comfort is good at the beginning of use, when the target temperature is constant as in the past, the user feels hot as time passes. Although the comfort is impaired, when the target temperature is gradually decreased as in the present embodiment, a good comfort can always be obtained over time.

Even when users of different heights use it, the shoulder wiring portion 11a of the first heating element 11 is based on one end in the longitudinal direction of the floor covering 1 corresponding to the user's head position.
To waist wiring section 11b, knee wiring section 11d, toe wiring section 11
Since the wiring area is arranged such that the width of the wiring area increases in the order of e, the first heating element 11 is located at the shoulder, waist, knees, and foot positions of the user of any height, and the height difference can be accommodated. .

The second heating element 12 is the first heating element 11
Although the wiring pattern is slightly different from that of the first heating element, the same operation and effect as the first heating element 11 can be obtained. Further, by configuring the wiring pattern of the second heating element 12 to be the same as the wiring pattern of the first heating element 11, both heating elements 11 and 12 have the same effect.

When "A" or "B" is selected by the changeover switch 21, first, both heating elements 11 and 12 are energized to evenly heat the entire surface of the flooring 1 and from the start of energization. It is also possible to automatically stop the energization of one of the heating elements 11 and 12 that is not selected after a predetermined time, and warm the temperature distribution suitable for sleeping by controlling the energization of only the other selected one.

[0052]

According to the electric heating appliance of claim 1,
Since the first heating element and the second heating element are wired in a wiring pattern for head cold feet with reference to the both ends of the floor object, for example, when a bed is laid on the floor object to sleep while warming, No matter which direction the user is going to sleep, the temperature distribution of head cold foot heat in the first heating element or the second heating element is switched by switching the energization to the first heating element or the second heating element by the switching means. Can be properly warmed with.

According to the electric heating apparatus of the second aspect, in addition to the effect of the electric heating apparatus of the first aspect, the entire surface of the floor object can be warmed by switching the power supply to both heating elements by the switching means. .

According to the electric heating appliance of the third aspect, in addition to the effect of the electric heating appliance of the first or second aspect, since the surface material and the back material of the floor object are made of the same material, the surface of the floor object is Alternatively, it can be used with either of the back surfaces facing upward. Moreover, for example, even when the power cord pulled out from one of the four corners of the floor object is connected to the outlet at the place of use, the power cord does not matter whether the outlet at the place of use is located on any of the four sides of the floor object. Can be connected at the shortest distance, and there is no restriction on the position where the floor object is laid.

[Brief description of drawings]

FIG. 1 is an explanatory view of an electric carpet showing an embodiment of an electric heating appliance of the present invention.

FIG. 2 is a cross-sectional view of a spread object according to the above embodiment.

FIG. 3 is a plan view of the controller according to the embodiment.

FIG. 4 is an electric circuit diagram of the above embodiment.

FIG. 5 is an explanatory diagram showing an example of use of the orientation of the flooring object and the sleeping direction of the user in (a) to (d) when the surface material of the flooring object of the above embodiment is the upper surface.

FIG. 6 is an explanatory view showing an example of use of the orientation of the flooring object and the sleeping direction of the user in (a) to (d) when the backing material of the flooring object of the above embodiment is the upper surface.

FIG. 7 is a graph of target temperature-time when used for sleeping according to the above embodiment.

FIG. 8 is a graph of comfort-time when used for sleeping according to the above embodiment.

[Explanation of symbols]

 1 Laying object 10 Backside material 11 First heating element 12 Second heating element 14 Surface material 21 Changeover switch as switching means

Claims (3)

[Claims] 1. A bed object, a first heating element wired in a wiring pattern for head cold foot heat along a sleeping direction with one end of the bed object as a reference, and a sleeping direction with the other end of the bed object as a reference An electric heating device comprising: a second heating element wired along a wiring pattern for head cold foot heat; and a switching means for energizing either one of the first heating element and the second heating element. Equipment. 2. The switching means is for energizing the first heating element,
The electric heating appliance according to claim 1, wherein the second heating element is switched between energization and energization of both heating elements. 3. The laid object has a surface material and a back surface material made of the same material, and a first heating element and a second heating element are wired between the surface material and the back surface material. The electric heating appliance according to claim 1 or 2.