Three-phase sealing connector for ultrahigh pressure air condition compressor

Abstract

The utility model discloses a three-phase sealing connector for an ultrahigh pressure air condition compressor, which relates to the technical field of rubber and plastic sealing, and comprises a fixed bottom plate and a sealing structure, the fixed bottom plate is provided with an insertion hole, the sealing structure comprises an upper structure and a lower structure, and the fixed bottom plate is bonded with the lower structure. The upper structure and the lower structure are both coaxial with the insertion hole, the upper structure is arranged on one side of the lower structure, the diameter of the upper structure is larger than that of the lower structure, and an external sealing ring and an internal sealing ring are further arranged on the lower structure. And the external sealing ring and the internal sealing ring are on the same side with the upper structure and are respectively positioned on the outer side and the inner side of the upper structure. And the connection stability and the connection strength between the rubber sealing structure and the metal fixing bottom plate are improved through the vulcanization integrated technology. The sealing structure is used for comprehensively sealing four different positions inside, outside, up and down.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber and plastic sealing, and particularly relates to a three-phase sealing connector for an ultra-high pressure air-conditioning compressor. Background Art

[0002] As a highly efficient and sealed safety component, the three-phase sealed connector for ultra-high pressure air-conditioning compressors for new energy vehicles has the characteristics of good sealing performance, easy installation, high pressure resistance and safety. It is increasingly used in high-end new energy vehicles and is an important component to improve the comfort of passenger cars. Due to the complex working conditions of vehicles during use, they often experience various extremely harsh environments such as wind, frost, rain, snow, sand and dust, which will have a direct impact on comfort. Therefore, for multifunctional and high-precision devices such as the structure of the three-phase sealed connector for air-conditioning compressors, it is generally required to meet the requirements of long-term stable sealing, which requires the use of a structure that is resistant to high pressure, fully sealed, easy to install and has stable performance.

[0003] Previously, due to the complex structure and high ambient temperature of the air-conditioning compressor of new energy vehicles, it was difficult to use a three-phase compressor connector made of a single material inside the air-conditioning compressor housing; the existing connector rubber material is generally made of plastic, one end is installed on the air-conditioning compressor end, and the other end is connected to the connector; it plays the role of connecting the current. Due to the general structure, after working for a long time, the plastic sealing end will leak to a certain extent due to the influence of the external environment, and dust pollutants will enter. After working for a long time and the temperature rises, the plastic three-phase connector will deform, seriously affecting the service life of the air-conditioning compressor and the comfort of the car. In view of the above working environment and use requirements, the general air-conditioning compressor uses a plastic connector to fix the three-phase joint, and the connection is not well sealed, which not only affects the use effect, but also the safety performance is worrying, so that all aspects of the air-conditioning compressor The function cannot be guaranteed. Utility Model Content

[0004] In view of the problems mentioned in the background technology, the purpose of the present utility model is to provide a three-phase sealed connector for an ultra-high pressure air-conditioning compressor to solve the problems mentioned in the background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A three-phase sealed connector for an ultra-high pressure air-conditioning compressor comprises a fixed base plate and a sealing structure, wherein an insertion hole is provided on the fixed base plate, the sealing structure comprises an upper structure and a lower structure, the fixed base plate is bonded to the lower structure, the upper structure and the lower structure are both coaxial with the insertion hole and the upper structure is arranged on one side of the lower structure, the diameter of the upper structure is larger than the diameter of the lower structure, an external sealing ring and an internal sealing ring are further arranged on the lower structure, the external sealing ring and the internal sealing ring are both on the same side as the upper structure and are respectively located on the outer side and the inner side of the upper structure.

[0007] As a preferred technical solution, the compression amount of the upper structure is 20%-30%.

[0008] As a preferred technical solution, two groups of first elliptical sealing ribs are provided on the upper structure, and the cross-section of the first elliptical sealing ribs is an ellipse protruding toward both sides of the upper structure respectively, that is, the cross-section of the upper structure is gourd-shaped, and the top of the upper structure away from the lower structure is the top sealing part.

[0009] As a preferred technical solution, three groups of second elliptical sealing ribs are provided on the lower structure, and the cross-section of the second elliptical sealing ribs is a semi-elliptical shape protruding toward the insertion hole.

[0010] As a preferred technical solution, there are three groups of insertion holes and sealing structures, and the three groups of sealing structures are in a herringbone shape.

[0011] As a preferred technical solution, the middle group of sealing structures is fixedly connected to the two adjacent groups of sealing structures via a connecting portion.

[0012] As a preferred technical solution, the sealing structure and the connecting parts are both made of high-pressure resistant rubber material.

[0013] As a preferred technical solution, the high-pressure resistant rubber material and the fixed base plate are formed into an integral structure through an integral molding vulcanization process.

[0014] As a preferred technical solution, three groups of mounting holes are opened on the fixed bottom plate, the three groups of mounting holes are in a herringbone shape and the three groups of sealing structures are staggered.

[0015] As a preferred technical solution, the mounting hole adopts a recessed groove structure in which the upper diameter is larger than the lower diameter.

[0016] The advantages of the utility model are: the vulcanization integrated process increases the connection stability and connection strength between the rubber sealing structure and the metal fixed base plate. The three sets of sealing structures and the three mounting holes are nested in a positive and negative triangle shape, which is convenient for distinguishing the installation direction and facilitating quick assembly. The upper structure is designed in a gourd shape and is designed with a full sealing structure with a compression amount of 20%-30% in conjunction with the assembly parts. The lower structure is designed with an interference assembly structure of three sets of elliptical sealing ribs, and the external sealing ring and the internal sealing ring are fully sealed at four different positions inside, outside, top and bottom.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of a three-phase sealed connector for an ultra-high pressure air-conditioning compressor proposed by the utility model Figure 1 ;

[0019] Figure 2 This is a top view of a three-phase sealed connector for an ultra-high pressure air-conditioning compressor proposed by the utility model;

[0020] Figure 3 for Figure 2 Cross-sectional view along the AA direction;

[0021] Figure 4 for Figure 2 Cross-sectional view along direction BB.

[0022] Figure numerals: 1. Sealing structure; 11. Upper structure; 111. First elliptical sealing rib; 112. Top sealing portion; 12. Lower structure; 121. Second elliptical sealing rib; 13. External sealing rib; 14. Internal sealing rib; 2. Fixed bottom plate; 21. Mounting hole; 3. Connecting portion; 4. Insertion hole. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] Example 1

[0025] refer to Figures 1 to 4 The three-phase sealed connector for an ultra-high pressure air-conditioning compressor described in this embodiment includes a fixed base plate 2, three groups of insertion holes 4 are opened on the fixed base plate 2, and a sealing structure 1 is arranged in the insertion hole 4. The three groups of sealing structures 1 are in a herringbone shape, and the middle group of sealing structures 1 is fixedly connected to the two adjacent groups of sealing structures 1 through a connecting portion 3. The sealing structure 1 and the connecting portion 3 are both made of high-pressure resistant rubber material, and the high-pressure resistant rubber material and the fixed base plate 2 are formed into an integrated structure through an integrated molding vulcanization process.

[0026] Preferably, the fixed base plate 2 is made of metal material.

[0027] The sealing structure 1 coincides with the axis of the insertion hole 4 .

[0028] The sealing structure 1 includes an upper structure 11 and a lower structure 12, the upper structure 11 and the lower structure 12 both coincide with the axis of the insertion hole 4, the inner wall of the insertion hole 4 and the upper and lower end surfaces of the fixed base plate 2 are bonded to the lower structure 12, the upper structure 11 is arranged on one side of the lower structure 12, the diameter of the upper structure 11 is larger than the diameter of the lower structure 12, and the lower structure 12 is also provided with an external sealing ring 13 and an internal sealing ring 14, the external sealing ring 13 and the internal sealing ring 14 are both on the same side as the upper structure 11 and are respectively located on the outer side and the inner side of the upper structure 11.

[0029] Preferably, the compression amount of the upper structure 11 is 20%-30%.

[0030] Two groups of first elliptical sealing ribs 111 are provided on the upper structure 11. The cross-section of the first elliptical sealing ribs 111 is an ellipse protruding toward both sides of the upper structure 11, that is, the cross-section of the upper structure 11 is gourd-shaped, and the top of the upper structure 11 away from the lower structure 12 is the top sealing part 112.

[0031] Three groups of second elliptical sealing ribs 121 are provided on the lower structure 12 . The cross section of the second elliptical sealing ribs 121 is a semi-elliptical shape protruding toward the insertion hole 4 .

[0032] Three groups of mounting holes 21 are formed on the fixed bottom plate 2 . The three groups of mounting holes 21 are in a herringbone shape and the three groups of sealing structures 1 are staggered.

[0033] Preferably, the mounting hole 21 adopts a recessed groove structure with an upper diameter larger than a lower diameter, so as to save installation space.

[0034] The vulcanization integrated process increases the connection stability and connection strength between the rubber sealing structure 1 and the metal fixed base plate 2. The three sets of sealing structures 1 and the three mounting holes 21 are nested in a positive and negative triangle shape to facilitate the identification of the installation direction and quick assembly. The upper structure 11 is designed in a gourd shape and is designed with a full sealing structure with a compression amount of 20%-30% in conjunction with the assembly parts. The lower structure 12 is designed with an interference assembly structure of three sets of elliptical sealing ribs, and the external sealing ring 13 and the internal sealing ring 14 are all-round seals for four different positions inside, outside, top and bottom.

[0035] During assembly, the sealing connector is assembled on the automobile air-conditioning compressor through the sealing structure 1. The high-pressure resistant rubber material and the upper structure 11 and the lower structure 12 are sealed at multiple locations at the same time, so that the automobile can achieve long-term stable sealing during use. The three-phase sealing connector integrates sealing, linking, isolation, assembly, fixing, installation, error prevention and safety performance into one seal. The air-conditioning compressor of new energy vehicles is mostly an electric scroll compressor, which is composed of a motor, a rotor, a gasket, an eccentric disk, a scroll fixed disk, a scroll movable disk, and a rear cover. The three-phase cable of the compressor is installed at the motor end through a three-phase sealing connector. The three-phase cable forms the last hole seal between the motor and the housing through a rubber connector to ensure that dust and other pollutants cannot enter the motor. The high-voltage DC power provided by the external battery pack to the compressor is transmitted to the motor through the compressor power line of the three-wire cable, and then converted into AC power by the motor to provide power for the compressor. Different from the inclined plate compressor of the traditional fuel vehicle, the electric scroll compressor not only bears the refrigeration of the air conditioner, but also bears the cooling system of the battery pack. Therefore, the compressor of the new energy vehicle is crucial to the normal operation of the whole vehicle.

[0036] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A three-phase sealed connector for an ultra-high pressure air-conditioning compressor, comprising a fixed base plate (2) and a sealing structure (1), characterized in that: An insertion hole (4) is provided on the fixed base plate (2). The sealing structure (1) comprises an upper structure (11) and a lower structure (12). The fixed base plate (2) is bonded to the lower structure (12). The upper structure (11) and the lower structure (12) are coaxial with the insertion hole (4). The upper structure (11) is arranged on one side of the lower structure (12). The diameter of the upper structure (11) is greater than the diameter of the lower structure (12). The lower structure (12) is also provided with an external sealing ring (13) and an internal sealing ring (14). The external sealing ring (13) and the internal sealing ring (14) are both on the same side as the upper structure (11) and are respectively located on the outer side and the inner side of the upper structure (11).

2. A three-phase sealed connector for an ultra-high pressure air-conditioning compressor according to claim 1, characterized in that: The compression amount of the upper structure (11) is 20%-30%.

3. A three-phase sealed connector for an ultra-high pressure air-conditioning compressor according to claim 1, characterized in that: Two groups of first elliptical sealing ribs (111) are provided on the upper structure (11), and the cross-section of the first elliptical sealing ribs (111) is an ellipse protruding toward both sides of the upper structure (11), that is, the cross-section of the upper structure (11) is gourd-shaped, and the top end of the upper structure (11) away from the lower structure (12) is the top sealing part (112).

4. A three-phase sealed connector for an ultra-high pressure air-conditioning compressor according to claim 1, characterized in that: Three groups of second elliptical sealing ribs (121) are arranged on the lower structure (12), and the cross section of the second elliptical sealing ribs (121) is a semi-elliptical shape protruding toward the insertion hole (4).

5. The three-phase sealed connector for an ultra-high pressure air-conditioning compressor according to claim 1, characterized in that: The insertion holes (4) and the sealing structures (1) are both in groups of three, and the three groups of sealing structures (1) are in a herringbone shape.

6. A three-phase sealed connector for an ultra-high pressure air-conditioning compressor according to claim 1, characterized in that: The middle group of sealing structures (1) is fixedly connected to the two adjacent groups of sealing structures (1) via a connecting portion (3).

7. A three-phase sealed connector for an ultra-high pressure air-conditioning compressor according to claim 6, characterized in that: The sealing structure (1) and the connecting part (3) are both made of high-pressure resistant rubber material.

8. A three-phase sealed connector for an ultra-high pressure air-conditioning compressor according to claim 7, characterized in that: The high-pressure resistant rubber material and the fixed base plate (2) are formed into an integral structure through an integral molding vulcanization process.

9. The three-phase sealed connector for an ultra-high pressure air-conditioning compressor according to claim 1, characterized in that: Three groups of mounting holes (21) are provided on the fixed bottom plate (2), the three groups of mounting holes (21) are in a herringbone shape, and the three groups of sealing structures (1) are staggeredly distributed.

10. A three-phase sealed connector for an ultra-high pressure air-conditioning compressor according to claim 9, characterized in that: The mounting hole (21) adopts a sink structure with an upper diameter larger than a lower diameter.

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