Double-seal joint for automobile air conditioner

Abstract

The utility model relates to the technical field of sealing joints, in particular to a double-sealing joint for an automobile air conditioner, which has radial sealing and end face sealing functions at the same time, improves the system reliability and reduces the production cost. Comprising a connector body, a connecting assembly and a fixing assembly, the fixing assembly is installed in the middle of the connector body, and the connecting assembly is installed at one end of the connector body.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing joints, and in particular to a double-sealing joint for automotive air conditioning. Background Technology

[0002] In the air conditioning systems of new energy vehicles, refrigerant leakage is highly likely to occur at the connection between the air conditioning pipes and the thermal management integrated module. Refrigerant leakage can lead to battery thermal runaway, high-voltage system short circuits, damage to key components of the heat pump air conditioning system, and reduced driving range. Therefore, sealing at the connection is crucial. In existing connection methods, the air conditioning pipe joints and the thermal management integrated module use a single gasket for end-face sealing. This simplistic sealing method may lead to insufficient sealing at the connection point over time, affecting system reliability. Furthermore, the end-face sealing method heavily relies on the flatness of the mounting surface of the thermal management integrated module. If the surface is scratched or deformed during use, the end-face seal will fail, and replacing the gasket and air conditioning pipes will not solve the problem. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a dual-seal joint for automotive air conditioning that simultaneously possesses radial sealing and end-face sealing functions, thereby improving system reliability and reducing production costs.

[0004] This utility model discloses a double-sealed connector for automotive air conditioning, comprising a connector body, a connecting component, and a fixing component. The fixing component is installed in the middle of the connector body, and the connecting component is installed at one end of the connector body. One end of the connector body is welded to a commonly used air conditioning pipe on the market, and the other end is connected to the thermal management integrated module through the connecting component. The part adopts a radial + end face sealing structure design. The double-sealed structure design ensures the sealing reliability of the connection, extends the service life, and reduces the number of after-sales replacements.

[0005] Preferably, the connecting assembly includes a connector mounted on a connector body, and the connector has two sealing grooves; these sealing grooves support the installation of up to two O-rings for radial sealing. Using two O-rings enhances the sealing effect, allows for operation in harsher environments, extends service life, and reduces the frequency of replacements. In less harsh working environments with lower requirements, a single O-ring can also be used for sealing, reducing costs.

[0006] Preferably, the fixing component includes a fixing block located between the connector body and the connector, and the fixing block has a through hole; the connector can be installed through the fixing block and the through hole to ensure stability during use.

[0007] Preferably, the connector body is provided with a PT sensor mounting interface; the PT sensor can be installed through the PT sensor mounting interface to detect the refrigerant pressure and temperature at the evaporator outlet, thereby calculating the refrigerant superheat and adjusting the opening of the electronic expansion valve based on this information to ensure that the refrigerant can be completely evaporated in the evaporator, thereby maintaining the efficient and stable operation of the system and improving the energy efficiency ratio.

[0008] Preferably, the connector body has an internal partition groove; during welding, the molten metal will accumulate in the partition groove, which can prevent the molten metal from entering the PT installation interface and clogging the threads, thus causing installation difficulties.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: one end of the connector body is welded to the commonly used air conditioning pipes on the market, and the other end is connected to the thermal management integrated module through the connecting component. The part adopts a radial + end face sealing structure design. The double sealing structure design ensures the sealing reliability of the connection, extends the service life, and reduces the number of after-sales replacements. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the bushing structure of this utility model;

[0012] Figure 3 This is a three-dimensional structural schematic diagram of the present invention;

[0013] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0014] The attached diagram is labeled as follows: 1. Connector body; 2. Fixing block; 3. PT sensor mounting interface; 4. Connector; 5. Sealing groove; 6. Isolation groove. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0016] like Figures 1 to 4 As shown, connector 4 is installed on connector body 1. Two sealing grooves 5 are opened on connector 4. Fixing block 2 is located between connector body 1 and connector 4. A through hole is opened on fixing block 2. A PT sensor mounting interface 3 is opened on connector body 1. A partition groove 6 is opened inside connector body 1.

[0017] The sealing groove 5 supports the installation of up to two O-rings for radial sealing. Using two O-rings enhances the sealing effect, allows for operation in harsher environments, extends service life, and reduces the frequency of replacements. In less demanding environments, a single O-ring can be used for sealing, reducing costs. The fixing block 2 and through-hole allow for joint installation, ensuring stability during use. The PT sensor mounting interface 3 allows for the installation of a PT sensor, which detects the refrigerant pressure and temperature at the evaporator outlet, calculates the refrigerant superheat, and adjusts the opening of the electronic expansion valve accordingly to ensure complete refrigerant evaporation in the evaporator. This maintains the system's high efficiency and stable operation, improving the energy efficiency ratio. During welding, molten metal accumulates in the partition groove 6, preventing it from entering the PT mounting interface and clogging the threads, thus avoiding installation difficulties.

[0018] like Figures 1 to 4 As shown, this utility model discloses a double-sealed connector for automotive air conditioning. During operation, the connector is installed via a fixing block 2 and a through hole. The part of the connector 4 connected to the thermal management integrated module adopts a radial + end face sealing structure design. The other end can be welded to commonly used air conditioning pipes on the market. During welding, molten metal accumulates in the partition groove 6, which can prevent the molten metal from entering the PT installation interface. The PT sensor can be installed through the PT sensor installation interface 3, which can detect the refrigerant pressure and temperature at the evaporator outlet, thereby calculating the refrigerant superheat and adjusting the opening of the electronic expansion valve based on this information to ensure that the refrigerant can be completely evaporated in the evaporator, thereby maintaining the high efficiency and stable operation of the system and improving the energy efficiency ratio.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A double-sealed connector for automotive air conditioning, characterized in that, It includes a connector body (1), a connecting component and a fixing component. The fixing component is installed in the middle of the connector body (1), and the connecting component is installed at one end of the connector body (1).

2. The double-sealed joint for automotive air conditioning as described in claim 1, characterized in that, The connection assembly includes a connector (4), which is mounted on the connector body (1) and has two sealing grooves (5).

3. The double-sealed joint for automotive air conditioning as described in claim 2, characterized in that, The fixing component includes a fixing block (2), which is located between the connector body (1) and the connector (4), and a through hole is provided on the fixing block (2).

4. The double-sealed joint for automotive air conditioning as described in claim 1, characterized in that, The connector body (1) is provided with a PT sensor mounting interface (3).

5. A double-sealed connector for automotive air conditioning as described in claim 1, characterized in that, The connector body (1) has a partition groove (6) inside.

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