KR100283333B1 - Refrigerant injection safety device - Google Patents

Abstract

The present invention relates to a refrigerant injection safety device for a vehicle, comprising: a refrigerant injector pin inserted into one end of a refrigerant injector for injecting refrigerant; The refrigerant injector pins are fitted into the refrigerant injection port for entering the refrigerant, there is no fear of breaking the refrigerant injector pins, there is an advantage that the effect of the sealing action to prevent the refrigerant from leaking due to the elasticity by the elastic member.

Description

Refrigerant injection safety device

The present invention relates to a refrigerant injection safety device of a vehicle, and more particularly, by changing the structure of the refrigerant pin that is easily broken when the refrigerant used in the air conditioner of the vehicle, the refrigerant is accurately inserted and the sealing force so that the refrigerant does not leak It relates to a coolant injection safety device excellently invented.

The car air conditioner system of the automobile is to supply the appropriate warm and cold air into the cabin as part of the air conditioning system to maintain the interior of the car in a comfortable environment of temperature and humidity, and to make the driver's watch better and ensure safety. .

In addition, in the case of a water-cooled engine car, a high temperature heat source of 80 degrees, called cooling water, can be used for a device for supplying warm air into a vehicle, but a special device is required to supply cold air into a vehicle.

The air conditioner system requires the following performance due to the characteristics of the vehicle.

First, a large amount of ventilation is required because of the large proportion of people occupying the interior space. Second, because of the large amount of radiant heat and ventilation from the sun through the glass, a large cooling and heating capacity is required despite the narrow interior. Third, in order to use rapid cooling, rapid heating, and the like, a capacity that is larger than a normal use capacity is required. Fourth, detailed control is necessary because of the large influence of the vehicle speed or external environment. Fifth, it should be possible to prevent frost on window panes such as rain or winter. Sixth, it should be excellent in durability and reliability under vibration conditions while driving. Seventh, in order not to impair the running function of the vehicle, a countermeasure that does not adversely affect the power performance or the heat load performance of the vehicle is necessary.

If the car air conditioner developed to date is classified into temperature control method, it is divided into 4 types of heater cooler independent method, heater cooler conversion method, semi air conditioner method, and full air conditioner method. It can be classified into four types: dash type, instrument type, and dual type. In addition, the air conditioning control system is classified into two types, a manual air conditioner and an auto air conditioner.

An air conditioner is composed of components such as a reservoir and an expansion valve (expansion valve) in addition to main components such as a compressor (compressor), a condenser (condenser), and an evaporator (evaporator). These parts are connected with aluminum, a copper pipe, a rubber hose, etc., and a closed circuit is formed.

1 is a cross-sectional view illustrating a structure of a conventional refrigerant injection hole, and a fixing member 104 is coupled to an outer end of a refrigerant injection pipe 100 having an injection hole 102 into which a refrigerant is introduced, and the fixing member 104. Numerous threads are formed inside 104.

In addition, a coolant inlet 106 having a plurality of threads formed on an outer surface thereof is formed at one side of the coolant tube 110, and the coolant inlet 106 and the fixing member 104 are fastened to each other.

An injection pin 108 is formed inside the refrigerant inlet 106 to be coupled to the injection hole 102 to supply the refrigerant.

On the other hand, in order to charge the system to the refrigerant in the structure as described above, first connect the air conditioning service unit to the can containing the refrigerant, adjust the pressure while slowly opening the low pressure valve, and then operate the engine at high speed idle The refrigerant is charged by operating the air conditioner. In addition, in order to charge the refrigerant as described above, it is necessary to accurately inject the refrigerant after the injection port and the refrigerant injector.

However, since the structure of the refrigerant injector has a fin shape, it is easy to be broken, and as the pin of the injector is broken, the refrigerant leaks or the entire assembly needs to be replaced.

The refrigerant injection safety device of the present invention devised to solve the above problems does not easily break by changing the fin structure of the refrigerant injector, and provides a refrigerant injection safety device so that the refrigerant can be injected accurately without leaking during refrigerant injection. It is for that purpose.

1 is a cross-sectional view showing the structure of a conventional refrigerant inlet

Figure 2 is a cross-sectional view showing the structure of the refrigerant injection safety device of the present invention

Explanation of symbols on the main parts of the drawings

10; Refrigerant injector 12; Refrigerant injector pin

14; Protrusions 16,16a; Elastic member

18,18a; First bowl 20,20a; 2nd bowl

22,22a; Bar 24,24a; septum

26; Refrigerant inlet

The present invention for achieving the above object, the refrigerant injector pin is inserted into one end of the refrigerant injector for injecting the refrigerant, the elastic member is coupled to the refrigerant injector is installed on the outer circumferential surface inside the injection port for entering the refrigerant; A first bowl connected to the resilient member and moving elastically, a bar connected to one side of the first bowl, a second bowl connected to the other end of the bar, a first bowl connected to the resilient member, and a first It is a technical feature that the bar is connected to the bowl, and the second bowl connected to the bar is configured to be partitioned to support the elastically moving linearly so as not to escape.

Hereinafter, with reference to the accompanying drawings will be described the configuration, operation, and effects of the present invention.

The refrigerant injection safety device of the present invention includes a refrigerant injector pin 12 inserted into one end of a refrigerant injector 10 for injecting a refrigerant, and a refrigerant injection port 26 into which a refrigerant enters by fitting the refrigerant injector pin 12. It is composed of

The refrigerant injector pin 12 has a protruding portion 14 formed along an outer circumferential surface of one end thereof, and the refrigerant inlet 26 has elastic members 16 and 16a installed on the outer circumferential surface of the injection hole, and the elastic member 16 and A first bowl 18, 18a connected to 16a and moving elastically, bars 22, 22a connected to one side of the first bowls 18, 18a, and the other ends of the bars 22, 22a. The second balls 20 and 20a connected to each other, the first balls 18 and 18a connected to the elastic members 16 and 16a, and the bars 22 and 22a connected to the first balls 18 and 18a, The second bowls 20 and 20a connected to the bars 22 and 22a linearly move, and constitute a partition wall 24 and 24a for supporting them so as not to be separated.

2 is a cross-sectional view showing the structure of the refrigerant injection safety device of the present invention, the refrigerant injector pin 12 is fitted to the inside of the refrigerant injector 10, a circular shape on the outer peripheral surface of one end of the refrigerant injector pin 12 Protruding portion 14 is formed.

At this time, the elastic member (16, 16a) is installed inside the refrigerant inlet hole 26 is inserted into the refrigerant injector 10, the first bowl (18, 18a) is the respective elastic member (16, 16a) Bars 22 and 22a are connected to one side of the first bowls 18 and 18a, and second balls 20 and 20a are connected to the other ends of the bars 22 and 22a. have.

Meanwhile, the first and second balls 18 and 18a and the second and second balls 20 and 20a are elastically moved by the elastic members 16 and 16a and installed to have a linear displacement by the bars 22 and 22a. It is.

The first balls 18 and 18a and the second balls 20 and 20a are partially supported by the partition walls 24 and 24a so as not to be pulled out, and a part of the second balls 20 and 20a is supported. A part protrudes inward of the partitions 24 and 24a.

Looking at the operation of the present invention made as described above are as follows.

When the refrigerant injector 10 having the refrigerant injector pin 12 is inserted into the refrigerant inlet 26, the protrusion 14 of the refrigerant injector pin 12 is inserted between the partitions 24 and 24a. The second bowls 20 and 20a protruding from the inside of the partition walls 24 and 24a are pushed outwards to be fitted to the seats on which the second bowls 20 and 20a are seated.

Therefore, even when the refrigerant is injected through the refrigerant injector and the refrigerant is filled, the refrigerant injector can be prevented from leaking into the gap by the elastic member and the internal pressure.

Refrigerant injection safety device of the present invention having the configuration as described above has the advantage that there is no fear that the refrigerant injector pin is broken, the sealing effect to prevent the refrigerant from leaking due to elasticity by the elastic member.

Claims (2)

A refrigerant injector pin inserted into one end of the refrigerant injector for injecting the refrigerant; A resilient member installed on an outer circumferential surface of the inlet through which the refrigerant injector pin is fitted and the refrigerant enters; A first bowl connected to the elastic member and elastically moving; A bar connected to one side of the first bowl; A second bowl connected to the other end of the bar; Refrigerant injection safety device, characterized in that consisting of a first wall connected to the resilient member, and a bar connected to the first bowl, a second wall connected to the bar to support the elastically moving linearly so as not to escape. The method of claim 1, The coolant injection safety pin is a refrigerant injection safety device, characterized in that the protrusion is formed along the outer peripheral surface of one end.

Images