Filter cartridge for automobile air conditioner

Abstract

The utility model discloses a filter cartridge for an automobile air conditioner, which relates to the technical field of automobile accessories and comprises a base and a filter cartridge body which are made of plastic materials and connected in an assembly mode. The base comprises a top ring part, a lower ring cover and supporting ribs for connecting the top ring part and the lower ring cover; the filter cartridge body comprises an upper ring part, a lower ring part, a connecting rib for connecting the upper ring part and the lower ring part, and screen cloth; the filter cartridge body further comprises a positioning lip and a sealing lip; and the filter cartridge body is formed by plastic injection molding. Through a specific assembly structure between the base and the filter cartridge body, such as the matching of the assembly convex rib and the assembly groove, and the design of the sealing lip on the outer surface of the ring part on the filter cartridge body, the sealing performance of the filter cartridge is effectively enhanced, air or liquid can be better prevented from leaking at the joint of the filter cartridge and other parts, and the service life of the filter cartridge is prolonged. Normal operation of an automobile air conditioning system is ensured, and the refrigerating or heating effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically a filter cartridge for automotive air conditioning. Background Technology

[0002] The automotive air conditioning filter cartridge is a core component ensuring the normal operation of the compressor and refrigeration system in the air conditioning system. It primarily performs functions such as liquid storage, filtration, and drying, and its performance directly affects the efficiency of the condenser and the stability of the air conditioning system. During the automotive air conditioning cycle, the filter cartridge must effectively filter impurities and moisture from the refrigerant or air, preventing contaminants from entering the compressor or refrigeration lines, and preventing equipment wear, blockage, or reduced cooling efficiency. Therefore, its structural rationality, sealing performance, and durability are crucial to the reliability of the entire vehicle's air conditioning system.

[0003] The traditional filter cartridge's base and body assembly structure is poorly designed, easily leading to gaps after assembly. This results in a weak seal, allowing air or refrigerant to leak from the joints, affecting filtration efficiency and the cooling and heating efficiency of the air conditioning system. It may even exacerbate equipment wear due to impurity leakage. Furthermore, traditional filter cartridges suffer from higher procurement costs for aluminum materials compared to plastic. The aluminum base's manufacturing process is relatively complex, and its assembly with the filter cartridge body is cumbersome, resulting in significant manpower and material consumption during production, leading to high overall costs. In addition, the increased weight also increases transportation costs, further reducing the product's market competitiveness. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a filter cartridge for automotive air conditioning.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter cartridge for automotive air conditioning, comprising: a base and a filter cartridge body, wherein the base and the filter cartridge body are both made of plastic and are connected by an assembly method;

[0006] The base includes a top ring, a lower ring cover, and a supporting rib connecting the two.

[0007] The filter cartridge body includes an upper ring portion, an upper ring portion, a connecting rib connecting the two, and a mesh fabric;

[0008] The filter cartridge body also includes a positioning lip and a sealing lip;

[0009] The filter cartridge body is injection molded from plastic, achieving innovative effects such as good sealing effect, light weight, and low cost.

[0010] Preferably, a positioning protrusion is fixedly connected to the top ring portion of the base, and the positioning protrusion is distributed along the circumferential surface of the top ring portion.

[0011] Preferably, the lower ring cover of the base is provided with an assembly groove, and the assembly groove is arranged along the inner circumferential side of the lower ring cover.

[0012] Preferably, the lower ring of the filter cartridge body is fixed with an assembly rib, and the assembly rib matches the assembly groove of the base. The two are assembled and fixed by embedding the assembly groove into the assembly groove.

[0013] Preferably, the outer surface of the upper ring of the filter cartridge body is provided with a positioning lip and a sealing lip, the positioning lip being located above the sealing lip and the two being spaced apart along the axial direction.

[0014] Preferably, the mesh of the filter cartridge body covers the annular area formed by the upper ring, the sealing lip, and the connecting rib;

[0015] The upper ring, lower ring, and connecting rib are integrally injection molded.

[0016] Preferably, the base has multiple supporting ribs that are evenly arranged circumferentially between the top ring and the lower ring cover.

[0017] The upper end of each of the supporting ribs is connected to the lower end face of the top ring and the lower end is connected to the upper end face of the lower ring cover.

[0018] Preferably, the connecting ribs of the filter cartridge body are multiple and are evenly arranged circumferentially between the upper ring and the lower ring.

[0019] The upper end of each connecting rib is connected to the lower end face of the upper ring, and the lower end is connected to the upper end face of the lower ring.

[0020] Preferably, the top ring, lower ring cover, and supporting rib of the base are integrally injection molded structures.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] (1) This utility model effectively enhances the sealing performance of the filter cartridge by using a specific assembly structure between the base and the filter cartridge body, such as the matching of the assembly ribs and the assembly grooves, and the sealing lip design on the outer surface of the upper ring of the filter cartridge body. This can better prevent air or liquid from leaking at the connection between the filter cartridge and other components, ensure the normal operation of the car air conditioning system, and improve the cooling or heating effect.

[0023] (2) The entire filter cartridge of this utility model is made of plastic material. Compared with the traditional aluminum filter cartridge base, the plastic material has a lower density, which significantly reduces the overall weight of the filter cartridge. This not only facilitates installation on automobiles and reduces the manpower and material consumption during the installation process, but also reduces the vehicle's load, which helps to improve the vehicle's fuel economy or driving range;

[0024] (3) In this application, the cost of plastic materials is relatively lower than that of aluminum materials; on the other hand, the one-piece injection molding process simplifies the production process, reduces the processing and assembly of parts, and lowers the labor and material costs in the production process. In addition, due to the light weight of the plastic filter cartridge, transportation costs can also be reduced during transportation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the combined structure of the base and the filter cartridge body in this utility model;

[0026] Figure 2 This is the main view of this utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the base used in this utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the filter cartridge body in this practical application.

[0029] In the diagram: 1. Base; 101. Lower ring cover; 102. Support rib; 103. Top ring; 104. Positioning protrusion; 106. Assembly groove; 2. Filter cartridge body; 201. Upper ring; 202. Lower ring; 203. Connecting rib; 205. Sealing lip; 206. Mesh; 207. Assembly rib; 208. Positioning lip. Detailed Implementation

[0030] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Example 1

[0032] Please see Figure 1 - Figure 4 This application provides a filter cartridge for automotive air conditioning, including: a base 1 and a filter cartridge body 2, wherein the base 1 and the filter cartridge body 2 are both made of plastic and are connected by an assembly method;

[0033] The base 1 includes a top ring 103, a lower ring cover 101, and a support rib 102 connecting the two.

[0034] The filter cartridge body 2 includes an upper ring portion 201, a connecting rib 203 connecting the two, and a mesh 206;

[0035] The filter cartridge body 2 also includes a positioning lip 208 and a sealing lip 205;

[0036] The filter cartridge body 2 is made of plastic injection molding, achieving innovative effects such as good sealing effect, light weight and low cost.

[0037] It should be noted that the filter cartridge body 2 achieves innovative effects such as good sealing effect, light weight and low cost through plastic injection molding process.

[0038] In this embodiment, preferably, a positioning protrusion 104 is fixedly connected to the top ring portion 103 of the base 1, and the positioning protrusion 104 is distributed along the circumferential surface of the top ring portion 103. Its function is to accurately position it with other components in the automotive air conditioning system during the installation process, so as to ensure the accuracy and stability of the filter cartridge installation.

[0039] In this embodiment, preferably, the lower ring cover 101 of the base 1 is provided with an assembly groove 106, and the assembly groove 106 is arranged along the inner circumferential side of the lower ring cover 101 to achieve a tight fit between the filter cartridge body 2 and the base 1.

[0040] In this embodiment, preferably, an assembly rib 207 is fixed on the lower ring portion 202 of the filter cartridge body 2, and the assembly rib 207 matches the assembly groove 106 of the base 1. The two are assembled and fixed by embedding the assembly groove 106 into the assembly groove 106.

[0041] It should be noted that during the assembly process, the assembly rib 207 can be embedded in the assembly groove 106, thereby achieving a firm assembly and fixation between the filter cartridge body 2 and the base 1, ensuring the connection strength and sealing between the two.

[0042] In this embodiment, preferably, the outer surface of the upper ring portion 201 of the filter cartridge body 2 is provided with a positioning lip 208 and a sealing lip 205, with the positioning lip 208 located above the sealing lip 205 and the two being spaced apart along the axial direction.

[0043] It should be noted that the positioning lip 208 can be used to further position relevant components in the automotive air conditioning system to ensure the accurate installation position of the filter cartridge in the system;

[0044] The sealing lip 205 is mainly used to enhance the sealing performance at the connection between the filter cartridge and other components, preventing air or liquid leakage.

[0045] In this embodiment, preferably, the mesh 206 of the filter cartridge body 2 covers the annular area formed by the upper ring 201, the sealing lip 205 and the connecting rib 203.

[0046] The upper ring 201, lower ring 202, and connecting rib 203 are integrally injection molded. This design allows the mesh 206 to be firmly fixed on the filter cartridge body 2, while ensuring good filtration effect and overall structural stability.

[0047] In this embodiment, preferably, the base 1 has multiple supporting ribs 102 that are evenly arranged circumferentially between the top ring portion 103 and the lower ring cover 101.

[0048] The upper end of each support rib 102 is connected to the lower end face of the top ring 103 and the lower end is connected to the upper end face of the lower ring cover 101.

[0049] It should be noted that the function of the support rib 102 is to enhance the structural strength of the base 1, ensuring that the base 1 can maintain a stable shape and structure without deformation or damage when subjected to pressure or vibration.

[0050] In this embodiment, preferably, the connecting ribs 203 of the filter cartridge body 2 are multiple and are evenly arranged circumferentially between the upper ring portion 201 and the lower ring portion 202;

[0051] The upper end of each connecting rib 203 is connected to the lower end face of the upper ring 201, and the lower end is connected to the upper end face of the lower ring 202.

[0052] It should be noted that the presence of the connecting rib 203 enhances the overall structural strength of the filter cartridge body 2, ensuring that the filter cartridge body 2 can withstand the impact of airflow or liquid flow during the filtration process without deformation, thereby ensuring that the mesh 206 is always in the correct position and maintains a good filtration effect.

[0053] In this embodiment, preferably, the top ring 103, the lower ring cover 101, and the support rib 102 of the base 1 are integrally injection molded structures.

[0054] It should be noted that the one-piece injection molding process greatly improves the connection strength between the components, reduces potential problems caused by the assembly process, and also improves production efficiency and reduces production costs.

[0055] Working principle: When the car air conditioning system is running, air or refrigerant is filtered through the filter cartridge. First, air or refrigerant enters from one end of the filter cartridge. When it flows through the filter cartridge body 2, the mesh 206 plays the main filtering role. The mesh 206 has a specific pore structure that can block dust, impurities and tiny particles in the refrigerant, allowing only clean air or refrigerant to pass through.

[0056] During the installation of the filter cartridge, the positioning protrusion 104 of the base 1 cooperates with the corresponding positioning structure in the automotive air conditioning system to ensure the accurate installation position of the filter cartridge in the system; at the same time, the positioning lip 208 of the upper ring 201 of the filter cartridge body 2 is further positioned with the relevant components. The dual positioning mechanism ensures the accuracy and stability of the filter cartridge installation.

[0057] The base 1 and the filter cartridge body 2 are tightly connected by fitting the mounting ribs 207 into the mounting grooves 106. This connection method not only ensures the connection strength between the two but also provides good sealing at the connection point. Furthermore, the sealing lip 205 on the outer surface of the upper ring 201 of the filter cartridge body 2 further enhances the sealing effect when the filter cartridge is connected to other components, preventing air or refrigerant leakage and ensuring the smooth operation of the filtration process.

[0058] The supporting rib 102 in the base 1 and the connecting rib 203 in the filter cartridge body 2 respectively enhance the structural strength of the base 1 and the filter cartridge body 2, enabling the filter cartridge to withstand external forces generated by vibration, airflow impact, etc. during vehicle operation, ensuring that the filter cartridge can work stably under various working conditions and maintain good filtration performance.

[0059] Clean air or refrigerant filtered through the filter cartridge flows out from the other end of the cartridge and enters the subsequent stages of the car's air conditioning system, providing a comfortable environment inside the vehicle or ensuring the normal operation of the refrigeration system.

[0060] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A filter cartridge for automotive air conditioning, characterized in that, include: The base (1) and the filter cartridge body (2) are connected by an assembly method; The base (1) includes a top ring (103), a lower ring cover (101), and a support rib (102) connecting the two. The filter cartridge body (2) includes an upper ring (201), a connecting rib (203) connecting the two, and a mesh (206). The filter cartridge body (2) also includes a positioning lip (208) and a sealing lip (205); The filter cartridge body (2) is sealed by injection molding.

2. The filter cartridge for automotive air conditioning according to claim 1, characterized in that, A positioning protrusion (104) is fixedly attached to the top ring portion (103) of the base (1), and the positioning protrusion (104) is distributed along the circumferential surface of the top ring portion (103).

3. The filter cartridge for automotive air conditioning according to claim 1, characterized in that, The lower ring cover (101) of the base (1) is provided with an assembly groove (106), and the assembly groove (106) is arranged along the inner circumferential side of the lower ring cover (101).

4. The filter cartridge for automotive air conditioning according to claim 1, characterized in that, The filter cartridge body (2) has an assembly rib (207) fixed on its lower ring (202), and the assembly rib (207) matches the assembly groove (106) of the base (1). The two are assembled and fixed by embedding the assembly groove (106) into the assembly groove (106).

5. A filter cartridge for automotive air conditioning according to claim 1, characterized in that, The upper ring (201) of the filter cartridge body (2) is provided with a positioning lip (208) and a sealing lip (205) on its outer surface. The positioning lip (208) is located above the sealing lip (205) and the two are distributed at intervals along the axial direction.

6. A filter cartridge for automotive air conditioning according to claim 1, characterized in that, The mesh (206) of the filter cartridge body (2) covers the annular area formed by the upper ring (201), the sealing lip (205) and the connecting rib (203); The upper ring (201), lower ring (202), and connecting rib (203) are integrally injection molded.

7. A filter cartridge for automotive air conditioning according to claim 1, characterized in that, The base (1) has multiple supporting ribs (102) that are evenly arranged circumferentially between the top ring (103) and the lower ring cover (101); The upper end of each of the support ribs (102) is connected to the lower end face of the top ring portion (103) and the lower end is connected to the upper end face of the lower ring cover (101).

8. A filter cartridge for automotive air conditioning according to claim 1, characterized in that, The connecting ribs (203) of the filter cartridge body (2) are multiple and are evenly arranged circumferentially between the upper ring (201) and the lower ring (202); The upper end of each of the connecting ribs (203) is connected to the lower end face of the upper ring (201) and the lower end is connected to the upper end face of the lower ring (202).

9. A filter cartridge for automotive air conditioning according to claim 1, characterized in that, The top ring (103), lower ring cover (101), and support rib (102) of the base (1) are integrally formed.

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