CN214367995U

CN214367995U - Automobile air conditioner valve inside

Info

Publication number: CN214367995U
Application number: CN202023264030.3U
Authority: CN
Inventors: 袁博; 王力新; 朱晓鸿; 夏春秋; 廉卫东; 贾龙; 蒋塑
Original assignee: Gongzhuling General Yuan Industrial Co ltd
Current assignee: Gongzhuling General Yuan Industrial Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-10-08
Anticipated expiration: 2030-12-29

Abstract

The automobile air conditioner valve core comprises a core body connecting cap with a through hole; the core rod penetrates through the core body connecting cap and can move linearly; an external thread matched with a connecting hole with an internal thread on the valve body matched with the valve core is arranged above the outer side surface of the core body connecting cap; the outer side surface of the core body connecting cap is provided with an annular first bulge; the outer side surface of the core body connecting cap is provided with an annular second bulge; the bottom surface of the first bulge, the top surface of the second bulge and the outer side surface of the core body connecting cap positioned between the first bulge and the second bulge form an integral groove for accommodating the sealing ring; the sealing ring comprises a first ring and a second ring, and the inner diameter of the first ring is larger than that of the second ring. The utility model discloses a space that first bellied bottom surface, first face, second face formed is through receiving first ring, is convenient for install the sealing washer location fast.

Description

Automobile air conditioner valve inside

Technical Field

The utility model belongs to valve inside field, especially vehicle air conditioner valve inside.

Background

The refrigerant is an essential medium for ensuring the normal operation of the air conditioner, and in addition to the excellent working performance, performance indexes influencing the environment must be considered, that is, the refrigerant has less harm to the atmospheric environment, and is preferably harmless. Wherein, CO₂The refrigerant (R744) has been the subject of attention and research because of its excellent working performance and harmless property to the environment, but it requires high working pressure and is not popularized in the design and production of air conditioning systems in the late years. In recent years, CO₂As a refrigerant, the advantages of environmental protection and performance are increasingly attracting the attention of researchers in various countries around the world, the development of systems and components thereof is greatly developed, and the problems of technologies and processes which limit the popularization and application thereof are gradually overcome. It is believed that automotive air conditioning systems, commercial refrigeration systems, residential air conditioning systems, and the like will use a substantial amount of CO in the near future₂Replace the existing refrigeration working medium.

Changes in refrigerant will necessarily place new demands on the performance of the air conditioning system, such as the aforementioned operating pressures. C0₂The working pressure of the refrigerant is 6-8 times of that of the traditional refrigerant, so that the requirement is that the new air-conditioning system can be safe and feasible under the new pressure conditionThe operation is dependent. The valve core is used as a key part for filling and sealing the refrigerant, and naturally, the requirement is further satisfied.

However, due to structural limitations, when the valve core (shown in fig. 1 and 2) of the existing type is screwed into the valve body, the sealing ring at the bottom is easily blown or blown out to lose effectiveness during high-pressure inflation, and the reliability under the high-pressure condition is difficult to ensure. To this end, we developed this new valve core to accommodate CO₂High working pressure of refrigerant.

In view of the problems of the prior art, a need exists for an automotive air conditioner valve core with good sealing performance.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vehicle air conditioner valve inside that sealing performance is good.

In order to achieve the above object, the present invention provides the following technical solutions:

an automotive air conditioner comprising:

a core body connecting cap with a through hole;

the core rod penetrates through the core body connecting cap and can move linearly;

an external thread matched with a connecting hole with an internal thread on the valve body matched with the valve core is arranged above the outer side surface of the core body connecting cap;

the outer side surface of the core body connecting cap is provided with an annular first bulge;

the outer side surface of the core body connecting cap is provided with an annular second bulge;

a groove is formed on the bottom surface of the first bulge, the top surface of the second bulge and the outer side surface of the core body connecting cap between the first bulge and the second bulge and used for accommodating a sealing ring;

the bottom surface of recess includes from top to bottom in proper order: the first surface is a cylindrical side surface, and the second surface, the third surface and the fourth surface are arranged on a horizontal plane connected with the first surface;

the second surface is annular, and the outer side of the second surface extends downwards to form a third surface which is a cylindrical side surface;

the third surface is a side surface of the circular truncated cone and is connected with the lower edge of the third surface and the inner edge of the top surface of the second protrusion;

the diameter of the first surface is smaller than that of the third surface;

the sealing ring comprises a first ring and a second ring, and the inner diameter of the first ring is larger than that of the second ring;

the sealing ring is clamped on the step surface formed by the second surface and the third surface.

Further, the outer diameter of the first bulge is larger than the outer diameter of the second bulge.

In the technical scheme, the utility model provides a vehicle air conditioner valve inside has following beneficial effect:

the sealing ring with the ladder shape is sleeved on the whole groove of the outer side surface of the core body connecting cap, and further, the first ring is arranged in the first groove formed by the first surface, the second surface and the bottom surface of the first bulge, so that the initial positioning of the installation of the sealing ring can be quickly realized; the mounting process is simple, the sealing ring is not influenced by air pressure during high-pressure inflation, so that the reliability of the valve is better, and meanwhile, the sealing problem is solved by means of the tight fit of the sealing ring and the connecting hole on the valve body; the second ring is a cylinder, and is extruded and deformed in a second groove between the third surface, the fourth surface and the top surface of the second bulge, so that gas is prevented from being discharged from the through hole, the tight fit between the sealing ring and the connecting hole in the valve body is further improved due to the extrusion of the cylindrical second ring, and the sealing property is ensured; the inclined second ring clings to the fourth surface, so that the sealing ring is firmly sleeved on the whole groove on the outer side surface of the core body connecting cap.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

FIG. 1 is a schematic view of a prior art valve core;

FIG. 2 is a schematic view of another prior art valve core configuration;

FIG. 3 is a schematic view of the structure of the valve core disclosed in the present invention;

FIG. 4 is an enlarged partial schematic view of FIG. 3;

fig. 5 is a partially enlarged schematic view of fig. 3.

1. A core bar; 2. the core body is connected with the cap; 3. a seal ring; 21. a first protrusion; 22. a second protrusion; 31. a first side; 32. a second face; 33. a third surface; 34. a fourth surface; 4. an integral groove; 41. a first groove; 42. a second groove.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in FIGS. 1-5;

the automobile air conditioner door core comprises a core body connecting cap 2 with a through hole; the core rod 1 penetrates through the core body connecting cap 2 and can move linearly; the core body cap 2 can be an integral structure or a split structure of the core cap and the core body which are buckled together, and the structure and the connection of the core rod cap and the core body 1 belong to the prior art, and are not described again.

The novel structure mainly improves the outer side surface of the core body cap 2,

and an external thread matched with a connecting hole with an internal thread on the valve body matched with the valve core is arranged above the outer side surface of the core body connecting cap 2.

A sealing ring 3 is arranged below the external thread, and the upper part and the lower part of the sealing ring are respectively provided with a circular ring; the height of the upper first ring is less than the height of the second ring, the outer diameters of the two rings are the same, but the inner diameter of the first ring is less than the inner diameter of the second ring, forming a protrusion above the sealing ring 3 extending into the sealing ring bore.

The outer side surface of the core body connecting cap 2 is provided with an annular first bulge 21; the outer side surface of the core body connecting cap 2 is provided with an annular second bulge 22 below the first bulge 21; the bottom surface of the first protrusion 21, the top surface of the second protrusion 22 and the outer side surface of the core cap 2 between the first protrusion 21 and the second protrusion 22 form an integral groove 4 for accommodating the seal ring 3;

the bottom surface of the integral groove 4 comprises from top to bottom: a first surface 31 having a cylindrical side surface, a second surface 32, a third surface 33, and a fourth surface 34 on a horizontal surface connected to the first surface 31;

the second surface 32 is annular, and the outer side of the second surface 32 extends downwards to form a third surface 33 which is a cylindrical side surface; the fourth face 34 is a side face of the circular truncated cone, and connects a lower edge of the third face 33 and an inner edge of the top face of the second projection 22.

That is, the sectional shape of the integral groove 4 of the axial sectional view of the valve core shown in fig. 5 is a vertical line in order from top to bottom, and the first face 31 is correspondingly formed; then the vertical line is connected with the horizontal line extending outwards to form a second surface 32 correspondingly; the other end of the horizontal line is connected with another vertical line to correspondingly form a third surface 33; the final cross-sectional shape is connected by a diagonal line, which corresponds to the fourth face 34.

The second surface 32 and the third surface 33 form a stepped surface; the diameter of the first face 31 is smaller than the diameter of the third face 33. This forms a first groove 41 facilitating the quick mounting of the first ring of the sealing ring 3.

While the third and fourth faces 33, 34 and the top surface of the second protrusion 22 form a second groove for facilitating the mounting of the second ring of the sealing ring 3. The design of third face 33 realizes the second ring slope's middle transition smoothly, and the assumption does not have the design of third face, and the second ring directly inclines, can cause the right angle that first ring and second ring junction formed not to laminate with the step that second face 32 and third face 33 formed, and sealed effect is insecure.

Because of the difficult processing of core even the lateral surface of cap 2 goes out the pitch arc, and the sealing washer is from taking elasticity again, and the fourth face 34 of slope is convenient for process, also can reach the crooked purpose of messenger's sealing washer, is convenient for realize the crooked of second ring lower part, further increases the extrusion deformation of first ring, increases sealed effect. It will be appreciated by those skilled in the art that selecting the length of the second ring to be the total length of the third face 33 and the fourth face 33 will ensure that the second ring is firmly squeezed in the second groove.

The outer diameter of the first protrusion 21 is larger than the outer diameter of the second protrusion 22. When the liquid reaches the sealing ring 3 through the second bulge 22, the liquid pressure can further attach the second ring to the integral groove because the second ring is obliquely arranged; on the other hand, the first ring is further extruded and deformed, and the sealing performance is improved.

As can be appreciated by those skilled in the art, a sealing ring can be added above the position of the internal thread on the valve body matched with the valve core and arranged above the outer side surface of the core body connecting cap 2 according to the convention of the prior art.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. Automobile air conditioner valve inside, its characterized in that includes:

a core body connecting cap (2) with a through hole;

the core rod (1) penetrates through the core body connecting cap (2) and can move linearly;

an external thread is arranged above the outer side surface of the core body connecting cap (2), and the external thread is matched with a connecting hole with an internal thread on a valve body matched with the valve inside for use;

the outer side surface of the core body connecting cap (2) is provided with an annular first bulge (21);

the outer side surface of the core body connecting cap (2) is provided with an annular second bulge (22);

the bottom surface of the first bulge (21), the top surface of the second bulge (22) and the outer side surface of the core body connecting cap (2) positioned between the first bulge (21) and the second bulge (22) form an integral groove (4) for accommodating a sealing ring (3);

the bottom surface of the integral groove (4) sequentially comprises from top to bottom: a first surface (31) having a cylindrical side surface shape, a second surface (32), a third surface (33), and a fourth surface (34) on a horizontal plane connected to the first surface (31);

the second surface (32) is annular, and the outer side of the second surface (32) extends downwards to form a third surface (33) in a cylindrical side surface shape;

the fourth surface (34) is shaped as a side surface of a circular truncated cone and connects a lower edge of the third surface (33) and an inner edge of the top surface of the second protrusion (22);

the second surface (32) and the third surface (33) form a stepped surface;

the diameter of the first face (31) is smaller than the diameter of the third face (33);

the sealing ring (3) comprises a first ring and a second ring from top to bottom, the inner diameter of the first ring is larger than that of the second ring, and the height of the first ring is smaller than that of the second ring;

the sealing ring (3) is clamped on a step surface formed by the second surface (32) and the third surface (33).

2. The automotive air conditioner valve core according to claim 1, wherein the first protrusion (21) has an outer diameter larger than the outer diameters of the two protrusions (22).