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Electrical heater, heating heat exchanger and vehicle air conditioner

An electric heater and heat technology, applied in air heaters, heat exchanger shells, fluid heaters, etc., can solve problems such as complex heater structures

Inactive Publication Date: 2005-02-02
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the structure of the heater becomes complicated

Method used

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  • Electrical heater, heating heat exchanger and vehicle air conditioner
  • Electrical heater, heating heat exchanger and vehicle air conditioner
  • Electrical heater, heating heat exchanger and vehicle air conditioner

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0030] The following will refer to the attached figure 1 and 2 A first embodiment of the present invention will be described. First, an air conditioner for a vehicle using the electric heater of the first embodiment will be described. figure 1 A schematic structure of an interior air conditioning unit portion 10 of an air conditioner for a vehicle is shown. The interior air-conditioning unit section 10 is generally installed inside an unshown vehicle instrument panel (instrument panel), which is located at the front of the passenger compartment of the vehicle. Outer air inlets 11, inner air inlets 12, 13 and inner and outer air switch doors 14, 15 for opening and closing these inlets 11, 12, 13 are located in the air flow of the inner air conditioning unit portion 10. the most upstream part.

[0031] The outside air (i.e., the air outside the passenger compartment of the vehicle) or the inside air (i.e., the air inside the passenger compartment of the vehicle) entering fro...

no. 2 example

[0051] The following will refer to image 3 A second embodiment of the present invention will be described.

[0052] In the first embodiment described above, the electrode members 33, 34 are located in the longitudinal direction of each of the plurality of heating body plates 31 ( figure 1 The two ends on the vertical direction). That is, the electrode members 33 and 34 extend in a direction parallel to the airflow direction "a" at both ends of each heating body plate 31 . But in the second embodiment, as in image 3 As shown, the electrode members 33 and 34 are located at both end portions of each heating body plate 31 in the short side direction (horizontal direction). That is, the electrode parts 33 , 34 are located at the upstream and downstream end portions of the heating body plate 31 in the airflow direction “a”.

[0053] Therefore, in the second embodiment, the segment-shaped joint portions 33a, 34a and the slit-shaped air gap portions 33b, 34b are formed in the el...

no. 3 example

[0056] The following will refer to Figure 4A and 4B A third embodiment of the present invention will be described.

[0057] In the above-mentioned first and second embodiments, the heating body plate 31 and the electrode parts 33, 34 are pre-molded independent bodies respectively, and the ends of a plurality of heating body plates 31 arranged parallel to each other are connected to the electrode parts 33 in a flat plate shape. , 34 joined into a whole. But in the third embodiment, if Figure 4A and 4B As shown, auxiliary electrode parts 330 and 340 made of electrical conductors such as copper are integrally molded at the end of each heating body plate 31 .

[0058] In particular, in Figure 4A Among them, the auxiliary electrode members 330, 340 made of conductors such as copper and the longitudinal direction of each heating body plate 31 ( figure 1 The two ends in the vertical direction) are molded into one piece. In addition, in Figure 4B Among them, the auxiliary ...

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Abstract

An electrical heater includes plural heating body plates (31) arranged in parallel with each other to define an air passage (32) between adjacent two thereof, a positive electrode member (33) joined to one end side of each heating body plate, and a negative electrode member (34) joined to the other end side of each heating body plate. In the electrical heater, the heating body plates are arranged to directly heat air passing through the air passage when electrical power is supplied to the heating body plates through the electrode members. Accordingly, the electrical heater can effectively heat air with a simple structure.

Description

technical field [0001] The present invention relates to an electric heater, a heating heat exchanger including a heating core integrated with the electric heater, and an air conditioner for a vehicle using the electric heater or Heating heat exchanger. Background technique [0002] There have been proposed various types of electric heaters which have an electric heating body for generating heat, and heat can be generated by passing an electric current through the electric heating body (for example, JP-B2-3274234). In the prior art, a PTC heating body is used as an electric heating body. The PTC heating body is made of ceramics, and its resistance value increases suddenly at a predetermined temperature, and the heating temperature can be self-controlled to a predetermined temperature. [0003] Since the PTC heating body is made of ceramics, the degree of freedom of choice of molding shape is low. Therefore, the heat dissipation part for increasing the heat dissipation must ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/14B60H1/03B60H1/22F24H3/04F28F9/00
CPCF24H3/0435F24H3/0405F24H9/1872B60H1/2225F24H3/0429
Inventor 伊藤仁士鸟越荣一中村贡
Owner DENSO CORP
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