JPS60169625A - Car mount heat exchanger - Google Patents

Abstract

PURPOSE:To eliminate disturbance of flow by arranging straightener boards at the perpendicularly bent section of duct in the upstream of heat-exchanger. CONSTITUTION:A duct 10 is formed with a section 10a formed by inflating a portion of bonnet 4 upwardly and a bellows member 10b placed between the bonnet 4 and inter-cooler 7. A curved section 10c is formed at the inflated section 10a in the upstream of inter-cooler 7. Straightener board 11 are arranged at the curved section 10c of duct 10. Consequently, fluid such as air is layered without disturbance resulting in improvement of cooling efficiency.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a vehicle-mounted heat exchange device for exchanging heat with various heat exchangers such as an intercooler, a heater core, and an evaporator mounted on a width measuring vehicle. In particular, this invention relates to measures to prevent turbulence caused by a substantially right-angled bend in a duct upstream of a heat exchanger.

(Prior art) In recent years, automatic cars equipped with supercharged engines have become popular, but in order to cool the supercharged air, for example, an air-cooled heat exchanger (intercooler) is used in such cars. Installation is required. Conventionally, this heat exchanger was installed on the front side of the radiator, but due to the heat exchange in the heat exchanger (warmed air was led to the jetter and its cooling capacity was inhibited, the engine There was a problem in that the cooling performance of the cooling system was deteriorated.

On the other hand, an opening for introducing running wind into the bonnet 1 of a car (to introduce running wind into the engine room) is described in Japanese Utility Model Application No. 58-3315. Run by using the same opening for wind introduction.
7 It is possible to install a J2 heat exchanger on the flow side, but in this case, the heat exchanger should be installed vertically! In this case, the height of the engine, etc. is restricted accordingly, which is not preferable. Therefore, it is advantageous in terms of space to install the heat exchanger lying down.

When the heat exchanger (intercooler) is installed lying down as described above, if the running wind introduced from the running III introduction opening is guided to the gently curved duct 1 and led to the heat exchanger, The duct length is long, which is disadvantageous in terms of installation space, similar to the above. Therefore, in terms of space, it is preferable to guide the traveling wind introduced from the traveling wind introduction port 1 to the heat exchanger through the ducts 1 to 1, which are bent at a substantially right angle.

However, when the duct upstream of the heat exchanger is bent at a substantially right angle in this way, the traveling wind introduced in a nearly laminar flow state becomes turbulent at the bend in the duct 1-, and flows into the heat exchanger in a turbulent state. As a result, the wind from the vehicle is only directed to a portion of the heat exchanger. As a result, a new problem arises in that the heat exchange performance (cooling performance) of the heat exchanger decreases.

In addition, in the heater core of the air conditioner mounted on the vehicle or the heat exchanger of the vaporizer, the duct that guides the air conditioning air supplied to these heat exchangers is inserted through the back of the instrument panel. , At the back of the instrument panel 1, there are 4 devices installed such as wire harnesses, defrost pipes, etc., and it is necessary to secure a certain amount of space inside the vehicle. For what reason do you have space constraints?
It may be necessary to avoid bending the duct 1 of 1-heat exchanger-F. In that case as well, bending the duct almost at right angles can be advantageous in terms of space, but similarly, the heat exchange performance of the heat exchanger is affected by the generation of turbulent flow at the bend of the duct. There is a problem in that a decrease in

(Object of the invention) The present invention has been made in view of the above-mentioned situation J.
The purpose of this is to install a rectifying plate called a new NA at the bent part of the duct 1, which is bent at an almost right angle due to the laminar flow of the heat exchanger. By eliminating turbulence in fluids such as air after changing direction and creating a laminar flow, the flow is uniform throughout the entire area of the heat exchanger. The goal is to maximize the heat exchange performance of the exchanger.

(Structure of the Invention) In order to achieve the above object, the solution of the present invention is such that the duct 1 for guiding fluid such as air to be supplied to the heat exchanger is bent at an almost right angle upstream of the heat exchanger. 117 vehicle-mounted heat exchange equipment, each of which has the same width as the inflow side of the heat exchanger at each bend into the duct and extends approximately perpendicularly to the duct upstream from the bend, and 14 fins that increase in height as they go downstream of the flow.
ii) A rectifying plate is installed.

This allows the fluid to be guided in a laminar state from upstream of the bend in the duct. The heat exchanger is supplied to the heat exchanger in a laminar flow state.

(Effects of the Invention) Therefore, according to the present invention, the duct that guides the fluid supplied to the heat exchanger is bent almost at both angles in the flow of the heat exchanger due to the space constraint of the width measurement. (Although it is advantageous in terms of space, the fluid is directed to the rectifying plate without causing any turbulence at the bends of the ducts 1 to 1). Provides a practically useful vehicle-mounted heat exchange device that can supply heat to a heat exchanger and maximize the heat exchange performance of the heat exchanger. There are too many things to do.

(Example) Examples of the present invention will be explained below based on the drawings.

Figures 1 to 3 show an example in which the present invention is applied to a vehicle equipped with a supercharged engine as a first embodiment of the present invention. An engine compartment of a vehicle; 2 is a radiator disposed in the front side of the engine room 1; =I: 5 is an intake pipe forming an intake passage 6 for supplying intake air to the engine 1, and a supercharger (not shown) is arranged in the intake passage 6 to supercharge the intake air. The intake passage 6 downstream of the supercharger is
The system is an air-cooled heat exchanger that cools the high-temperature intake air (supercharged air) supercharged by the supercharger by exchanging heat with the low-temperature running wind (outside air). The intercooler 7 is installed on the engine 2 in a horizontal position facing the lower surface of the bonnet 1 to the bonnet 1 so as not to impose restrictions on the engine height, etc. , 8 is a lever provided in the middle of the intake pipe 5.

-7J z The front part of the bonnet 4 facing the intercooler 7 has an opening in the direction of vehicle movement to direct the running wind (outside air) to the intercooler 7 in the engine room 1.
A running introduction opening 9 is provided (the opening 9 communicates with the intercooler 7 via a duct 10). The bellows member 1 is interposed between the bulging portion 10a and the bonnet 4 and the intercooler 7.
01] There is a shadow formed depending on the intercooler 7.
A curved portion 10C is formed in the bulging portion 10a at the upstream side of the bulge 10a, and the curved portion 10C bends approximately at right angles to the flow direction of the traveling wind introduced from the frontage 9. After changing the direction at right angles, it is guided so as to be supplied to the intercooler 7, and is placed on the bonnet 1 facing the four sides 1-i! ! An opening 9 that opens in the vehicle traveling direction to the installed intercooler 7.
Duct 1'O (1
) The length is made to be shorter in terms of length.

Therefore, a current plate 1 is disposed at the bent portion 10c of the duct 10, which is the main component of the present invention.

The current plate 11 has a plurality of (six in the figure) fins 12.12.
The fins 12° 12... have the same width as the inflow side of the intercooler 7, that is, are horizontally suspended in the left-right direction, and are connected to the duct upstream from the bent portion 10c. 7, that is, in a direction substantially perpendicular to the traveling wind introduced from the opening 9, and its height gradually increases as it goes downstream of the flow. It is configured so that the almost laminar traveling wind introduced from 9 is deflected in a substantially right-angled direction while remaining in a laminar flow state without causing any disturbance.

Therefore, in the first embodiment, as the vehicle travels, the running wind introduced from the running introduction frontage 9 flows through the duct 1 having the bent portion 1Qc bent at a nearly right angle.
0 to the intercooler 7, where the high-temperature supercharged air from the supercharger is cooled by heat exchange with the running wind of low dryness. The supercharging efficiency is improved.

In that case, the bent portion 10c of the duct 10 has a converging portion 1 having the same width as the inflow side surface of the intercooler 7.
0 CJ- Extends in a direction almost perpendicular to the ducts I to 10 of the flow, and gradually increases in height as it goes upstream of the flow (
By disposing the rectifying plate 11 comprising a plurality of twins 12, 12, etc., the traveling wind introduced from the frontage 9 in a substantially laminar flow state is layered in a substantially perpendicular direction without turbulence. Since the flow is diverted and supplied to the intercooler 7, the intercooler 7 can maximize its performance without reducing its heat exchange capacity (cooling performance). Therefore, C can further improve the cooling performance for the supercharging air and the supercharging efficiency.

In addition, the above-mentioned duct I-'IO guides the running wind from the opening 9 to the intercooler 7, and depending on the 4th bend 10C (the duct length at the 1st corner C, which bends at a right angle) It can be short, and combined with the fact that the intercooler 7 is installed in a horizontal position (it is space efficient), and the space constraints in the engine route 111 can be alleviated.

FIG. 4 shows, as a second embodiment of the present invention, an example in which the present invention is applied to a heater core as a heat exchanger in an air conditioner mounted on a vehicle. The duct 10' that guides air is inserted through the instrument panel 1 to the back of the panel, so other ducts such as the life harness and differential 1 cost mounted on the back of the instrument panel are inserted into the back of the panel. Due to the constraints, it is bent at an almost right angle upstream of the heater core 13,
A rectifying plate '11' comprising a plurality of fins 12', 12', . Therefore, in this case as well, air conditioning can be achieved without causing any turbulence due to the bent portion 10'C, while making space advantageous by using the duct 10' having the bent portion 10'C bent at a nearly right angle. The air flowed through the rectifier plate 11' is in a laminar flow state in the right angle direction. By changing the direction by 1" and supplying 1 liter to the heater J'13, the heat exchange +1 ability (heating performance) of the heater J'13 can be maximized.

FIG. 5 shows a third embodiment of the present invention, which is applied to an evaporator as a heat exchanger in an air conditioner mounted on a vehicle, similar to the second embodiment. In this case as well, the duct 10'' that guides the air-conditioning air supplied to the Koniba Borator 14 is bent at the upstream side of the 1 Vaborator 14, as in the case of the heater core 12 described above. similar plural) rn12″, 12″
A rectifying plate 11'' is installed, which is equipped with a rectifying plate 11'', which maximizes the space efficiency and the thermal performance of 1/l of 1 vaporizer (?V1 to 4 (1 function)). Both sets with the demonstration of
It is possible to aim for

Incidentally, the present invention provides an intercooler 7 and a heater as in the first to third embodiments described above. -13, Evaporator 14
In addition, there are other heat exchangers that are mounted on vehicles and that can be similarly applied to various heat exchangers that introduce fluids of different temperatures and exchange heat between the two fluids.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the present invention, and FIGS. 1 to 3 show the first embodiment, and FIG. 1 is a longitudinal sectional side view of the front part of the vehicle;
Figure 2 is a perspective view of the same, Figure 3 is an enlarged view of the main parts shown in Figure 2, and Figure 4 is a schematic diagram of the second embodiment. There is a schematic configuration diagram C showing the third embodiment. 7...Intercooler, 10.10', 10''...
・Duct, 10G, 10'c, 10''c...
Bent portion, 11.1'bi, 11''... rectifier plate, 12.
-12'. 12″...Fin, 13...Hi~Tani 11.14・
...Evaporator.

Claims (1)

[Claims] (1) There is a heat exchanger that introduces fluids with different temperatures and exchanges heat between the two fluids, and a device that guides the fluid supplied to the heat exchanger. a duct that is bent at right angles, and a duct located at the bend of the duct, each having the same width as the inlet side of the heat exchanger, extending substantially perpendicular to the duct upstream of the bend, and downstream of the flow. (According to (a vehicle-mounted heat exchanger) characterized by being provided with a rectifier plate comprising a plurality of fins whose height gradually increases.