JPS5938653Y2 - Warming equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heating device such as an electric carpet that is equipped with a controller case that allows the temperature to be adjusted by hand.

In general, in heating equipment such as electric carpets that have large-capacity heating elements, relays are used in most cases to control the heating elements, but these relays are more effective than other electronic components in the control circuit. The actual situation is that the controller case housing these control components has a large size.

However, due to its reliability, lifespan, and cost-effective appearance, this relay is a thyristor used as a heating element control element.
They are inferior to semiconductor devices such as triacs, and recently semiconductor devices are increasingly being used to control heating elements.

In the case of this semiconductor element, there is a problem of how to dissipate the heat of the element. For example, if this semiconductor element and a heat sink that dissipates the heat of this element are built into a controller case, the problem is that the controller case itself The size may still be larger than when using a relay, so for products that are operated by hand, such as electric carpets, if the controller case becomes larger, it will not only reduce operability but also look bad. Met.

Another problem with the main body of electric carpets is that the cord opening case is large, as you can see from the current carpet, and there is no heat source in that part. Therefore, when the user touches that part with his or her hand during use, it is cold and uncomfortable for the user.

The present invention has been made to solve the above-mentioned problems, and the present invention will be explained below based on drawings showing embodiments thereof.

In Figures 1 and 2, 1 is a heating element 2, a temperature detection line 3
4 is a cord opening case provided in a part of the corner of the heating appliance body 1, and the cord opening case 4 has a heating element 2 as shown in FIG.
A control circuit 6 equipped with a semiconductor element 5 and the like is housed therein.

Reference numeral 7 denotes a recess provided on the upper surface of the cord opening case 4, and a metal heat sink 8, which also serves as a name plate, is attached to this recess 7.

Further, the semiconductor element 5 is attached to the lower surface of a metal heat sink 8.

Reference numeral 9 denotes a socket provided in the cord opening case 4, and a cordro plug 10 is detachably connected to this socket 9.

Reference numeral 11 denotes a controller case connected to the cordro plug 10 via a connecting cord 12. Inside this controller case 11, only a temperature adjustment section (not shown) consisting of a variable resistor for temperature adjustment is provided, and a temperature control section (not shown) is provided on the top surface. An adjustment dial knob 13 is provided.

When using an electric carpet or the like, the temperature of the heating element 2 can be adjusted to an arbitrary temperature by turning a temperature adjustment dial knob 13 provided on the controller case 11.

Further, since the cord opening case 4 is provided with a metal heat sink 8 to which the semiconductor element 5 is attached, the heat generated from the semiconductor element 5 can be radiated by the metal heat sink 8, and this heat sink 8 Since the device is heated, even if you touch that part during use, it will no longer feel cold like in the past.

As described above, according to the present invention, a control circuit having a heating element control element is housed in a cord opening case of a heating device body that has built-in heating wires and temperature detection wires, and the heating element control element is arranged at the cord opening. Since it is attached to a metal heat sink provided in the case, this metal heat sink will be warmed by the heat generated by the control element, and as a result, if you touch that part during use, Because it's warm, you won't feel cold and uncomfortable when you touch it, like in the past.

In addition, since there is only a temperature control section inside the controller case, which is connected to the cord opening case via a cordro plug, the controller case itself can be made smaller and has a simpler appearance. Obtainable.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a separated state of a part of the main body of an electric carpet and a controller case showing one embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA' in FIG. 1. 1...Heating device body, 2...Heating element, 3
...Temperature detection wire, 4 ... Cord opening case, 5 ... Semiconductor element, 6 ... Control circuit, 8 ... Metal Made of heat sink, 10...
Cord Robrag, 11...Controller case.

Claims (1)

[Scope of utility model registration request] A control circuit having a semiconductor element for controlling the heating element is housed in a cord opening case of a heating device body that incorporates a heating element and a temperature detection wire, and the semiconductor element is a metal heat sink provided in the cord opening case. This warming device is equipped with only a temperature control unit inside the controller case, which is attached to the cord opening case and connected to the cord opening case via a cordro plug.