JPH0571757A - Blower with heater - Google Patents

Abstract

PURPOSE:To accurately detect radiant heat from a heater of the subject blower provided with a fuse and/or a temperature detector. CONSTITUTION:An electric heater 10 is positioned on the windward side of a blower 12, and on a holding frame body of the electric heater 10, a shielding plate 19 is provided. On the plate 19, a fuse 21 and/or a temperature detector 20 are mounted. Warm air hitting the shielding plate 19 is led to the fuse 21 and/or temp. detector 20 for accurate detection.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower device with a heater incorporated in an air conditioner.

[0002]

2. Description of the Related Art Conventionally, as a blower device with an electric heater arranged behind an indoor heat exchanger in an air conditioner, for example, Japanese Utility Model Laid-Open No. 63-181723 is known. In this method, a heater is provided in the rear of the indoor heat exchanger, and a shield plate is arranged above the heater so that the heat radiation rising from the heater is detected by a temperature detector attached to the shield plate.

[0003]

However, since the shielding plate and the heater mounting member to which the temperature detector is mounted are separate components, a mounting error between them is likely to occur and abnormal heating of the heater is ensured. It was difficult to detect.

In view of the above situation, it is an object of the present invention to provide a blower device with a heater, in which a fuse or a temperature detector is directly attached to the upper part of a shield plate to solve the above problems.

[0005]

DISCLOSURE OF THE INVENTION The present invention relates to a heater-equipped blower device in which an electric heater is provided in a ventilation path in which a blower is arranged. The fuse of the electric heater and / or the temperature detector is attached to the upper part of the shielding plate.

[0006]

With the above-mentioned structure, when the blower (fan) is rotated, the guide air flows from the suction grill on the front side to the electric heater through the heat exchanger, and the air heated by the electric heater to become warm air is taken into the intake port. Through a blower to the upper discharge port. In this case, since the fuse and / or the temperature detector was attached to the leeward side of a part of the electric heater and the shielding plate was positioned, a part of the electrically heated air was not immediately sucked into the blower and collided with the shielding plate. As it rises and hits the fuse and temperature detector, reliable temperature detection is possible.

[0007]

The present invention will be described below with reference to the drawings of the embodiments.

FIG. 1 shows an integrated air conditioner, in which 1 is a casing type case (main body), and inside this case 1 is a partition plate 3 standing upright on a bottom plate 2 inserted thereinto. It is divided into 5. A suction grill (air suction port) 7 is provided on the front surface of the indoor side chamber 4, and a front cover 6 is arranged. An indoor heat exchanger 8 and a suction passage 9 are provided on the inner side (back side) of the suction grill 7.
The electric heater 10 disposed in the electric heater 10 and the blower (sirocco fan) 12 disposed behind the electric heater 10 are provided. This blower 12 is an outdoor chamber 5 of the partition plate 3.
Is attached to one shaft 14a of the fan driving motor 13 provided in the above, and an outdoor blower (propeller fan) 15 is attached to the other shaft 14b of the shaft 14a. A fan case 16 surrounds the outdoor blower 15 An outdoor heat exchanger 17 is arranged behind the blower 15, and the air conditioner 16 is configured with the entire configuration thereof. Here, the end portion of the heater element 10a of the electric heater 10 is locked to the support tool 18 provided on the vertical support frame 30, and a plurality of heater elements 10a are arranged in parallel in a substantially U shape. Reference numeral 31 is a horizontal support frame connected to the vertical support frame 30. The shield plate 19 is fixed to the upper portion of the back surface of the support frame 30 with screws 32. The shield plate 19 is integrally formed with two mounting pieces 32 and 33 extending upward. The support 18 is vertically attached to one of the mounting pieces 32.
The supports 18 arranged in the upper stage and the supports 18 of the vertical support frame 30 are connected via a fuse 21.
Further, the middle stage support tool 18 and the lower stage support tool 18 are connected via a temperature detector 20 (see FIGS. 3 and 5).

FIG. 4 is a front view of the vertical and horizontal support frames 30 and 31 with the heater element 10a removed, in which the shield plate 19 and the two mounting pieces 33 and 34 are integrally formed. The screws 32 are attached to the back side of the lateral support frame 31.

The operation will be described. First, the air conditioner 16 drives the motor 13 and the compressor (not shown) by a predetermined means to supply the refrigerant to the compressor and the cold / warm flow path switching valve (not shown). , The indoor heat exchanger 8, an electric expansion valve (not shown), and the outdoor heat exchanger 17 to cool or heat the room. Further, the heater can be heated by energizing the electric heater 10.

Here, the air (see the arrow in FIG. 1) flowing into the position of the electric heater 10 hits the heater element 10a from the indoor heat exchanger 8 through the suction passage 9 and is heated to become warm air. Passing through the rear blower 12
The warm air that flows into the room is discharged from the blower 12 to the room through the discharge passage 23 above the room 4 through the outlet 24.

In this case, the heater element 1 of the electric heater 10
A shield plate 19 is located behind 0a, and the warm air flowing in this portion does not pass through by colliding with the shield plate 19 and is not directed to the rear (blower side) and is guided upward, so that the air is abnormally heated. If so, this heated air is immediately sensed by the temperature detector 20 located above or the fuse 21 is activated. Moreover, since the temperature detector 20 and the fuse 21 are attached to the attachment pieces 33 and 34 provided integrally with the shield plate 19, the distance between the heater element 10a and the fuse 21 or the temperature detector 20 is maintained as designed. From this point, the temperature detector 20 obtains an accurate detection.

[0013]

As described above, in the air blower with a heater incorporated in the air conditioner of the present invention, the shield plate is disposed on the lee side of a part of the electric heater, and the fuse and / or the temperature is provided on the shield plate. Since the detector is directly attached, the distance between the heater and the fuse or temperature detector can be maintained as designed.
Therefore, the heat radiation of the heater raised by the shield plate is surely guided to the fuse and the temperature detector, and reliable detection is possible.

[Brief description of drawings]

FIG. 1 is a side view showing the inside of an air conditioner showing an embodiment of the present invention.

FIG. 2 is a front view showing a main part of an electric heater incorporated in the air conditioner shown in FIG.

3 is a front view of the electric heater shown in FIG. 2. FIG.

FIG. 4 is a front view showing the relationship between the support frame and the shielding plate shown in FIG.

5 is a perspective view of the electric heater shown in FIG. 3. FIG.

[Explanation of symbols]

 1 Main Body 9 Suction Passage 10 Electric Heater 10a Heater Element 17 Support Frame 19 Shielding Plate 20 Temperature Detector 21 Fuse

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshiyuki Komuro 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Fujio Suzuki 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Denki Incorporated (72) Inventor Toshinasa Tsukui 2-18 Keihan Hondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A blower device with a heater, wherein an electric heater is provided in a ventilation path in which a blower is arranged. A shield plate is provided on a leeward side of a part of the electric heater, and an upper portion of the shield plate is provided. A blower device with a heater, to which a fuse and / or a temperature detector of the electric heater is attached.