JPH0655821U - Air conditioning equipment for vehicles with deodorant and mildew proof equipment - Google Patents

Abstract

(57) [Summary] [Objective] The present invention provides refreshing air conditioning without the unpleasant musty odor of conventional vehicle air conditioning equipment. [Constitution] The present invention has a shut-off valve in the air duct to prevent the generation of mold bacteria due to the heat of the heater core of the vehicle air-conditioning equipment, and a cooling water shut-off valve is provided in the heater core part It is a car air-conditioning system that has a fungicidal and deodorant function by covering it with a heat insulating material.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is an air conditioner with deodorant and mildew proof device that can be used on most ordinary vehicles.

[0002]

[Prior art]

 Until now, most air-conditioning systems for cars suffer from musty odors, because the heat of the heater core is left behind without realizing that the heat of the heater core causes the growth of mold and other bacteria. Is the actual situation.

[0003]

[Issues to be solved by the device]

 Structurally speaking, a vehicle air conditioner consists of an evaporator for cooling, a heater core for heating, a duct connecting them, and a fan for sending air. Most models have a fan in the duct, and the air flows from the inlet to the evaporator and then through the heating heater to each outlet. When the fan is switched off during heating, the heat from the heater rises to the inside of the duct due to convection, reaches the evaporator, causing condensation on the evaporator, and keeping it warm for a long time is the main cause of the growth of mold and other bacteria. Depending on the model, the evaporator and the heater core are adjacent to each other, and the heat countermeasure is not considered at all.

[0004]

[Means for solving the problem]

 This invention has devised two methods as a heat countermeasure for the heater for heating in order to prevent unnecessary heating and air retention in the evaporator and duct of the vehicle air conditioning equipment. A. First of all, the heating heater is covered with a heat insulating material, a bypass duct is provided just before the heater core, and the bypass and air flow of the heater core are switched by two electromagnetic three-way valves linked with a fan switch. Do not let the heat of the unit leak into the duct or the evaporator when the fan is stopped. If no bypass is provided, install a normal solenoid valve instead of a three-way valve. B, the other is to radically change the conventional method of mixing warm air and cold air in the duct, and for heating and cooling, each fan and duct, suction port, blowout port are provided for heating and cooling The air outlets of are set up next to each other so that warm air and cold air are completely separated and mixed immediately after the air outlet. By separating this heating and cooling, the harmful effect of the heat of the heater can be prevented. By either of these two methods, most bacteria and fungal growth can be prevented. However, we will add two complementary methods in consideration of the various situations of car usage. One of them is a countermeasure for a car that has been left for a long time in direct sunlight in summer. It is believed that the room temperature will reach 50-70 degrees. At that time, the temperature inside the evaporator and the duct may rise considerably. In order to reduce both the heat, solar power generation and a small fan suitable for it, and a temperature sensor inside the evaporator are used to introduce outside air into the vehicle through the evaporator and duct. The evaporator is set to reach 20 degrees or more when the weather is fine in summer. Bypass is needed for this time. The other is that as a measure for the period when neither heating nor cooling is done, when the air conditioning switch is not turned on when the engine is started, the timer runs and turns on for 10 minutes to prevent air from staying in the duct or evaporator. To prevent it.

[0005]

[Action]

 The main purpose of the present invention is to shut off the air in the duct so that the heat of the heater core does not leak to the duct or the evaporator and to stop the flow of cooling water in the heater core. Describe the need for heat isolation. Three factors are essential for the reproduction of mold and other fungi. The three are nutrients (dust and other) water and moderate heat. Of the above three factors, it is impossible to remove dust and water in the evaporator both during heating and during cooling. Therefore, it is necessary to remove the third factor by cutting off heat. Due to the large amount of water and low temperature of around 0 ° C in the evaporator when the indoor temperature rises due to sunlight in summer, the absolute amount of bacteria and mold is small and mold odor does not occur. Therefore, as long as the heat of the heater core is cut off in the current structure, refreshing cooling and heating is possible without producing a moldy odor all year round.

[0006]

【Example】

 Three embodiments will be described below with reference to the accompanying drawings. 1 FIG. 12 is an evaporator for cooling, and 4 is a heater core for heating. Reference numeral 26 is an air duct connecting the two. Conventional air conditioning equipment does not have the bypass 3 in Fig. 1, the three-way valve 1 and 2, and the valve 14 for stopping the flow of cooling water as shown in Fig. 2. The present invention provides a normal valve or a three-way valve at positions 1 and 2 to prevent the heat of the heater core for heating from flowing to the duct or the evaporator when the fan is not rotating, and the heat insulation of 4 It is a thing that seals heat. Although it is possible to achieve a considerable amount of deodorization and mildew proof by simply attaching normal valves to positions 1 and 2, bypass, three-way valve, etc. will be described later, but more completeness was added. The valves 1 and 2 and the valve 14 for the cooling water are opened and closed in conjunction with the rotation of the fan. Only when the fan is rotating, the valve is opened so that the air and the cooling water can flow and the fan is rotating. When not in use, it is a valve for shutting off cooling water and warm air.

As a measure against the summer, FIG. 4 shows a solar thermal power generation panel, and a small fan according to the amount of power generation 1 shown in FIG. 1 is provided near the outside air inlet of FIG. 1 and 1 inside the evaporator of FIG. A temperature sensor is installed to prevent the temperature inside the evaporator from rising by introducing outside air when the temperature inside the evaporator rises above 20 degrees. It is also possible to transfer to battery charging in winter. Since the fan does not rotate during the period when air conditioning is not used, air in the duct accumulates, and odors are easily generated. A timer is provided to rotate the main fan of FIG. 11 for 10 minutes.

FIG. 3 shows a method of completely separating the cooling and heating ducts in order to prevent the heat of the heater core from leaking to the evaporator. Therefore, the fan shown in Fig. 3 will be installed exclusively for heating the other place. Even with this method, considerable deodorization and mildew prevention can be expected, but since ducts and fans may cause mold and other germs, it is advisable to keep the length of the duct as short as possible.

[0009]

[Effect of device]

 As mentioned above, the vehicle air conditioning system that takes heat measures to shut off the heat of the heater core suppresses the growth of mold and other fungi and prevents an unpleasant musty odor during air conditioning, and can maintain a refreshing vehicle environment all year round. I can do it.

[Brief description of drawings]

FIG. 1 is a front view of an air conditioning system for vehicles equipped with a deodorant / mold prevention device of the present invention.

FIG. 2 is a front view of a conventional vehicle air conditioning facility.

FIG. 3 is a front view of the heating and cooling duct separated type of the present invention.

FIG. 4 is a plan view of a front portion of a vehicle showing a place where a solar power generation panel for rotating a supplemental fan of the present invention is installed in the vehicle.

[Explanation of symbols]

1 Duct air cutoff valve (solenoid valve etc.) 2 Duct air cutoff valve (solenoid valve etc.) 3 Bypass duct 4 Heater core insulation 5 Auxiliary fan 6 Windshield defroster (air duct) 7 Front dashboard outlet (air duct) 8 Foot outlet (air duct) 9 Outside air inlet (air duct) 10 Indoor air inlet (air duct) 11 Main fan (conventional in the duct) 12 Cooling Evaporator 13 Heater core for heating 14 Solenoid valve for cooling water 15 Pipe for cooling water 16 Pipe for cooling water 17 Temperature sensor 18 For duct for defroster of separated type heating in Fig. 19 Front panel of duct for dedicated heating for separated type in Fig. 19 Blow-off port 20 Fan for exclusive use of separate heating in Figure 21 21 Windshield in Figure 22 Thick in Figure 4 Positive thermal power generation panel 23 4 Handles 24 Figure 4 Driver's door 25 Figure 4 Driver's chair 26 Air conditioning duct (for connecting evaporator and heater core)

Claims (4)

[Scope of utility model registration request] 1. A valve is provided at an air intake port and an outlet port of a heater core so that heat of the heater core does not go to a duct or an evaporator except when an air conditioner for a vehicle is used (when a fan is rotating). It is also necessary to operate the valve that stops the flow of cooling water in the heater core in the same way. or,
Cover the heater area with insulation. By the above processing, the temperature rise inside the evaporator and duct is suppressed, and since mold and various bacteria do not propagate, air conditioning without mold odor becomes possible. 2. An air conditioning system for a vehicle is independent of heating and cooling, that is, a fan, a duct, a suction port, and a blowout port are provided for each heating and cooling. Air outlets are provided next to heating and cooling, so that hot air and cold air are crossed and mixed immediately after being blown out. As a result, the heat of the heater does not affect the evaporator. 3. A timer for rotating the air conditioning fan for 10 minutes in conjunction with the engine start when the air conditioning switch is OFF is provided in order to prevent the accumulation of air in the duct for a long period of time. 4. In the summer, when the temperature inside the vehicle rises due to direct sunlight, the temperature inside the duct and the evaporator also rises. Therefore, a temperature sensor is installed inside the evaporator, and a solar thermal power generation panel is installed under the windshield of the dashboard. By rotating a small fan according to the amount of power generation and passing outside air into the duct or evaporator, it is taken into the room to prevent ventilation inside the vehicle and increase in temperature inside the duct, making it a refreshing year-round vehicle. The sensor temperature setting is 20 degrees.