JP2001221486A - Control equipment with temperature sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for improving the response of a temperature sensor by slightly changing a printed circuit board for mounting the temperature sensor. SOLUTION: A printed circuit board 1 in figure 1 consists of a temperature sensor 10 that consists of a heat-sensitive part 2 and a lead wire 3, and a mounting part pattern 4 of the temperature sensor 10 and a control circuit 5. In the printed circuit board 10, a slit 6 is provided around the temperature sensor 10. Due to the slit 6, a section part 7 where heat conduction from the side of the control circuit 5 to the side of the temperature sensor 10 has been suppressed is formed on the printed circuit board 1. As a result, heat that is generated during the energization of the control circuit 5 on the printed circuit board 1 cannot be propagated to the side of the temperature sensor 10 by the section part 7 easily, thus minimizing the influence that is given to the temperature detection accuracy of the temperature sensor 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device (remote control) for detecting an indoor temperature or the like and controlling the operation of an air conditioner or the like.
About.

[0002]

2. Description of the Related Art For example, Japanese Patent Laying-Open No. 6-82315 discloses a method for providing a small-sized, highly accurate, and highly responsive sensor for detecting temperature.

According to the present invention, the response of a thermistor-type temperature sensor in which a plurality of thermistor elements each having a mounting sheet made of insulating ceramics, a cover sheet made of insulating ceramics, and a lead member are hermetically sealed and built-in. Are shown.

[0004]

However, such a method of improving the temperature sensor main body and improving the responsiveness of temperature detection requires a change in design and manufacturing method, so that development costs and manufacturing costs are increased. I was not spared.

The present invention provides a method for improving the responsiveness of the above-described temperature sensor by making a slight change to the printed circuit board on which the temperature sensor is mounted.

[0006]

According to one aspect of the present invention, there is provided a temperature sensor having a heat-sensitive portion for detecting a room temperature and a lead wire extending from the heat-sensitive portion; In a device for controlling the operation of an air conditioner or the like by bonding a sensor lead wire to a printed circuit board on which a control circuit is formed and detecting an indoor temperature, a slit is formed around a mounting portion of the lead wire on the printed circuit board. Is provided.

The first aspect of the invention has the following operation. The printed circuit board on which the above-mentioned temperature sensor is mounted has a control circuit formed on the printed circuit board, and the control circuit itself generates heat when energized, thereby heating the printed circuit board. This heat is transferred to the printed circuit board by heat conduction. To reach the temperature sensor mounting part and affect the temperature sensor,
By providing a slit around the temperature sensor mounting portion of the printed circuit board, heat transmitted from the control circuit unit due to heat conduction of the printed circuit board is blocked, and the room temperature is accurately detected by the temperature sensor.

According to a second aspect of the present invention, there is provided a temperature sensor having a heat-sensitive portion for detecting a room temperature and a lead wire extending from the heat-sensitive portion, and the heat-sensitive element is bonded to a printed circuit board on which a control circuit is formed. In a device for detecting the room temperature and controlling the operation of an air conditioner or the like, a pattern wiring for improving room temperature detection accuracy is provided around the printed circuit board around which the heat-sensitive element is bonded.

The invention according to claim 2 has the following operation. The printed circuit board to which the above-mentioned temperature sensor is attached can improve the room temperature detection accuracy by enlarging the pattern wiring of the temperature sensor attachment portion on the printed board, for example.

According to a third aspect of the present invention, there is provided a temperature sensor corresponding to at least one of the items described in the first and second aspects.

The third aspect of the invention has the following operation. The printed circuit board on which the above-described temperature sensor is mounted may be provided with a slit around the temperature sensor mounted on the printed circuit board and / or by enlarging the pattern wiring of the temperature sensor mounting portion of the printed circuit board. Room temperature detection accuracy can be improved.

[0012]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory view in one embodiment of a control device (remote control for controlling the operation of an air conditioner) provided with a temperature sensor according to the present invention.

In FIG. 1, reference numeral 1 denotes a printed circuit board, which comprises a temperature sensor 10 comprising a heat sensitive portion 2 and a lead wire 3, a mounting portion pattern 4 of the temperature sensor 10, and a control circuit 5. A slit 6 is provided around the temperature sensor 10.

The provision of the slit 6 forms a partition 7 on the printed circuit board 1 in which heat conduction from the control circuit 5 side to the temperature sensor 10 side is kept small. Therefore, the heat generated when the control circuit 5 on the printed circuit board 1 is energized becomes less likely to be transmitted to the temperature sensor 10 by the partition portion 7, and acts to minimize the influence on the temperature detection accuracy of the temperature sensor 10. ing.

In FIG. 2, reference numeral 20 denotes a printed circuit board comprising a temperature sensor 10 comprising a heat-sensitive portion 2 and a lead wire 3, a mounting portion pattern 21 of the temperature sensor 10, and a control circuit 5. The printed circuit board 20 comprises a temperature sensor. By enlarging the mounting portion pattern 21 of FIG. 10 and, for example, wiring this pattern with a copper foil or the like having a good temperature characteristic, the printed circuit board 20 can be mounted in an air conditioner in which the atmosphere around the temperature sensor 10 has a small air flow. In this case, the temperature of the attachment portion pattern 21 changes in accordance with the atmosphere, so that the temperature detection accuracy of the temperature sensor 10 can be improved.

FIG. 3 is an external view of a remote controller of an air conditioner according to one embodiment of the present invention. Reference numeral 11 denotes a remote control housing provided with operation units such as an operation / stop switch 12, a cooling / heating operation changeover switch 13, a temperature setting switch 14, a wind speed changeover switch 15, and a temperature sensor 10 for detecting a temperature. Inside the remote controller 11, a printed circuit board provided with the temperature sensor of the present invention is incorporated, and a space 31 through which room air can flow is formed by the slit 30, and the space 31 is formed as shown in FIGS. A temperature sensor 10 is located.

FIG. 4 is a perspective view of the remote controller shown in FIG.

FIG. 5 shows a case 11 of the remote controller shown in FIG.
FIG. 4 shows a state of attachment of the temperature sensor 10 on the surface of the printed circuit board 1 provided in the inside of the heat sensitive unit 2.
And a temperature sensor 10 having lead wires 3 in which the area of the attachment pattern 4 is increased and slits 6 are provided around the area. Reference numeral 32 denotes a rising portion for defining a space 31 through which room air can pass, and the slit 6 is located along the rising portion 32.

FIG. 6 shows a case 11 of the remote controller shown in FIG.
FIG. 3 shows a state of attachment of the temperature sensor 10 on the back surface of the printed circuit board 1 provided in the inside of the heat sensitive unit 2.
And the temperature sensor 10 having the lead wire portion 3 has an enlarged area of the mounting portion pattern 4 and a slit 6 provided around the same.

Although the present invention has been described based on the above embodiment, the present invention is not limited to this.

[0022]

As described above, according to the first aspect of the present invention, by providing a slit around the temperature sensor mounting portion of the printed circuit board, the heat transmitted from the control circuit portion by the heat conduction of the printed circuit board is provided. It can be cut off, and the cost of designing / manufacturing by providing slits on the printed circuit board can be almost ignored, so that the temperature detection accuracy of the temperature sensor can be improved at low cost.

According to the second aspect of the present invention, the printed circuit board on which the temperature sensor is mounted can improve the room temperature detection accuracy by enlarging the pattern wiring of the temperature sensor mounting portion on the printed circuit board, for example. The cost of designing / manufacturing by enlarging the pattern wiring is almost negligible, so that the temperature detection accuracy of the temperature sensor can be improved at low cost.

According to the third aspect of the present invention, the printed circuit board on which the temperature sensor is mounted is provided with a slit around the temperature sensor mounted on the printed circuit board and / or a pattern of the temperature sensor mounting portion of the printed circuit board. By combining the enlargement of the wiring, the room temperature detection accuracy of the temperature sensor can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view in one embodiment of a printed circuit board provided with a temperature sensor according to claim 1 of the present invention.

FIG. 2 is an explanatory view in one embodiment of a printed circuit board provided with a temperature sensor according to claim 2 of the present invention.

FIG. 3 is a front view showing a remote controller in the air-conditioning apparatus according to the present invention.

FIG. 4 is a perspective view showing a temperature sensor portion of the remote controller shown in FIG.

FIG. 5 is a front view of a printed circuit board installed inside the remote controller shown in FIG. 3;

FIG. 6 is a rear view of the printed circuit board installed inside the remote controller shown in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Printed circuit board 2 Heat sensitive part 3 Lead wire 4 Pattern wiring 5 Control circuit 6 Slit 7 Division part 10 Temperature sensor

Continued on the front page (72) Inventor Keiji Nishida 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 3L061 BA01 5E338 AA01 AA11 BB06 BB17 BB75 CC10 CD23 EE01 EE03

Claims (3)

[Claims] 1. A temperature sensor having a heat sensitive part for detecting a room temperature and a lead wire extending from the heat sensitive part, and a lead wire of the temperature sensor is adhered to a printed circuit board on which a control circuit is formed to detect a room temperature. A device for controlling the operation of an air conditioner or the like, wherein the printed circuit board is provided with a slit around a mounting portion of the lead wire, the control device including a temperature sensor. 2. A temperature sensor having a heat-sensitive part for detecting a room temperature and a lead wire extending from the heat-sensitive part, and the heat-sensitive element is adhered to a printed circuit board on which a control circuit is formed, and the room temperature is detected and air is detected. A control device including a temperature sensor, wherein a pattern wiring for improving room temperature detection accuracy is provided around a portion of the printed circuit board to which the heat-sensitive element is bonded, such as a harmonic machine. 3. A control device comprising a temperature sensor corresponding to at least one of the items described in claim 1.