JP2563605B2 - Band for pressure resistance of heater core - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure band of a heating heater core in a vehicle air conditioner.

2. Description of the Related Art The structure of a conventional pressure band 6 of a heater core will be described with reference to FIG. As shown in the figure, the heater core is such that the upper tank 1 and the lower tank 2 are connected by a plurality of tubes 3, fins 4 are arranged between the tubes 3, and the fins 4 and the side plate 5 sandwiching the tubes 3 are strip-shaped. It is held by the pressure resistant band 6 of the heater core. Since the vehicle engine cooling water is circulated in the tube 3, the pressure inside the tube 3 changes with the engine speed, and therefore the pressure band 6 for the band-shaped heater core improves the pressure resistance of the heater core. .

However, the pressure-resistant band 6 of the heater core has only the purpose of improving the pressure resistance when an internal pressure is applied to the heater core. An object of the present invention is to provide a pressure band for a heater core, which has the purpose of improving the pressure resistance and also improving the degree of mixing of cold and warm air in a vehicle air conditioner having a small volume of aeromic scan bar.

Means for Solving the Problems In order to achieve the above object, the present invention provides a pressure-resistant band of a heater core on the outlet side of a fin and has a substantially V-shaped cross-section that extends from the upstream side to the downstream side of hot air. It is configured to deflect the flow of hot air as a widened shape.

Function In the above configuration, a part of the hot air flow is deflected by the pressure band slope of the heater core, and a part of the cold air is guided by the V groove portion on the opposite side of the hot air to mix the hot air and the cold air.

Example An example of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 2 is a sectional view of a unit when the present invention is used. Reference numeral 7 denotes an air mix damper that distributes the cool air that has passed through the evaporator 18 to a warm air passage 8 and a cold air passage 9 that are guided to the heater core 19. The cool and warm air is mixed in the air mix chamber 10 and is blown to a predetermined outlet. . This figure shows the defroster outlet 11 and the vent outlet 12
Furthermore, defroster damper 1 which opens and closes each outlet
3 shows the vent damper 14. Reference numeral 15 is a heat outlet, which is generally used for heating in winter. (Damper is not shown) Generally, the mode in winter used in the air conditioner for automobiles is the heat mode in which the heat blower outlet 15 that blows to the feet and the defroster blower outlet 11 that blows fog on the windshield are opened. At this time, the defroster outlet
The temperature of the air blown from 11 needs to be lower than the temperature of the wind blown from the heat blowout port 15 blown from the feet because the blowout port is close to the occupant's face. However, in the structure shown in FIG. 2, the hot air 16 blown from the heater core 19 is pushed up by the cold air 17 passing through the cold air passage 9, and the cold air 17 tends to flow to the defroster air outlet 11 and the heat air outlet 15. 6a is a pressure-proof band of the heater core, which is installed downstream of the flow of the hot air 16 and has a substantially V shape. As shown in FIG. 1, the upper tank 1 and the lower tank 2 are connected by a plurality of tubes 3 to form a tube 3 The fins 4 are arranged in between, and the space between the fins 4 and the side plate 5 between which the tube 3 is sandwiched is held. As described above, the pressure-resistant band 6a of the heater core supports the engine cooling pressure applied to the tube 3 as described above, and as shown in FIGS. 3 and 4, divides the hot air 16 into the left and right directions and the cold air 17 upwards. Since the cold air 17 can be guided to the defroster outlet 11 of FIG. 2 and the hot air 16 can be introduced to the heat outlet 15, the heat outlet in the heat mode in which the aforementioned outlet temperature is required in winter mode is required. The blowout temperature of the defroster blowout port 11 can be made lower than that of 15, and air conditioning can be realized without making passengers feel uncomfortable.

EFFECTS OF THE INVENTION As is clear from the above embodiments, according to the present invention, the pressure band of the heater core is formed into a substantially V shape so that the flow of hot air can be deflected and the cold air can be guided. An improvement in the degree of mixing can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view of a heater core using a heater core pressure band in one embodiment of the present invention, FIG. 2 is a sectional view of a vehicle air conditioner using the heater core, and FIG. 3 is a main part of the heater core. FIG. 4 is a perspective view of a main part of the same heater core, and FIG. 5 is a perspective view of a conventional heater core. 5 ... Side plate, 6a ... Heater core pressure band, 11 ...
Defroster outlet, 12 …… Bent outlet, 15 …… Heat outlet, 16 …… Hot air, 17 …… Cold air, 18 …… Evaporator, 19 …… Heater core.

Claims (1)

(57) [Claims] 1. Deformation due to pressure fluctuations of hot water is secured to both side plates of a heater core having fins for exchanging heat, which are sandwiched between a plurality of tubes communicating between an upper tank and a lower tank of hot water. A band for pressure resistance of a heater core of an air conditioner for a vehicle, which is provided on the outlet side of the fins and has a substantially V-shaped cross section and has a shape that spreads from the upstream side to the downstream side of the hot air. A pressure-resistant band for the heater core that deflects the flow.