A lightweight oil filter
By using plastic materials to make the upper and lower shells of the oil filter and using welding to connect the filter screen and the shell, the problems of complex assembly, high cost and heavy weight of the existing oil filter are solved, and lightweight design and high reliability connection are achieved.
Patent Information
- Application Number
- CN202421536018.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The assembly process of existing oil filters is complex and costly, and the overall weight is large due to the need for a metal lower shell.
The upper and lower shells are made of plastic materials, and a lightweight design is achieved by providing flanges and grooves at the edge of the shell, combined with welding to connect the filter and the shell.
Reduces overall weight, simplifies assembly process, reduces costs, and improves the firmness of the connection, avoiding the problem of damage to the filter due to impact.
Smart Images
Figure CN222738571U_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of filters, and in particular relates to a lightweight oil filter. Background Art
[0002] like Figure 1 As shown, the oil filter in the prior art is mainly composed of a shell and a filter screen, and the shell is divided into an upper shell and a lower shell, wherein the upper shell is made of plastic material and the lower shell is made of metal material, and a circle of flange 3.1 is processed on the edge of the lower shell. During assembly, the flange of the edge of the upper shell is inserted into the flange 3.1, and the edge of the filter screen is also fixed in the flange, and then the flange is pressed together by a machine, so that the upper shell, the lower shell and the filter screen are riveted and connected.
[0003] This assembly method has the problems of complex process and high cost. In addition, in order to meet the riveting requirements, the lower shell must be made of metal, which will inevitably increase the weight of the entire oil filter. Summary of the invention
[0004] The object of the present invention is to provide a lightweight oil filter which can not only reduce the overall weight but also achieve the purpose of low cost and high reliability connection.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a lightweight oil filter, comprising a plastic upper shell, a plastic lower shell and a filter screen; the edge of the plastic upper shell has a first flange, and the edge of the plastic lower shell has a second flange matching the first flange; the edge of the filter screen is located between the first flange and the second flange, and is fixed by a welding connection between the first flange and the second flange.
[0006] Further, the thickness of the first flange is greater than the thickness of the second flange.
[0007] Furthermore, a circle of grooves is provided on the bottom surface of the first flange, and a circle of protrusions corresponding to the grooves is provided on the top surface of the second flange; the protrusions are fixed in the grooves by welding.
[0008] Furthermore, the edge portion of the filter screen is fixed to the groove and the protrusion.
[0009] Furthermore, when the plastic upper shell and the plastic lower shell are connected by laser welding, the plastic upper shell is a shell made of a light-transmitting material, and the plastic lower shell is a shell made of a light-absorbing material.
[0010] Furthermore, a plurality of supporting ribs are disposed inside the plastic upper shell and the plastic lower shell.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1) The present invention changes the original riveting connection into welding, which not only reduces the process cost and improves the firmness of the connection, but also reduces the overall weight and achieves the purpose of lightweight manufacturing.
[0013] 2) The present invention adds support ribs in the plastic lower shell, which can not only prevent the shell from being deformed, but also support the filter screen to prevent the filter screen from being damaged by a large flow impact. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the assembly of an oil filter in the prior art;
[0015] Figure 2 It is a structural exploded view of a preferred embodiment of the present invention;
[0016] Figure 3 for Figure 2 Schematic diagram of the assembly of the illustrated embodiment. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0018] like Figure 2 and 3 As shown, the present invention discloses a lightweight oil filter, comprising a plastic upper shell 1, a plastic lower shell 3 and a filter screen 2. The plastic upper shell 2 is provided with an oil port with a rubber ring 1.2 and a bushing 1.4 for installing the oil filter. The edge of the plastic upper shell 2 has a first flange 1.1, and the edge of the plastic lower shell 3 has a second flange 3.2 matching the first flange 1.1. The edge of the filter screen 2 is located between the first flange 1.1 and the second flange 3.2, and is fixed by welding the first flange 1.1 and the second flange 3.2.
[0019] The welding method may be laser welding, friction welding, ultrasonic welding, etc. As a preferred example, the thickness of the first flange 1.1 should be greater than the thickness of the second flange 3.2 to ensure the welding strength.
[0020] As a preferred example, the bottom surface of the first flange 1.1 is provided with a circle of grooves 1.3, and the top surface of the second flange 3.2 is provided with a circle of protrusions 3.3 corresponding to the grooves 1.3. During manufacturing, the plastic lower shell 3 and the filter screen 2 are first integrally connected by injection molding, and the protrusions 3.3 protrude from the surface of the filter screen 2. Then, the plastic lower shell 3 provided with the filter screen 2 is connected to the plastic upper shell 2 through a welding process. During welding, the protrusions 3.3 melt and enter the grooves 1.3, thereby connecting the first flange 1.1 and the second flange 3.2.
[0021] As a preferred example, when the plastic upper shell 1 and the plastic lower shell 3 are connected by laser welding, the plastic upper shell 1 is a shell made of a light-transmitting material, and the plastic lower shell 3 is a shell made of a light-absorbing material.
[0022] As a preferred example, a plurality of support ribs 3.4 are provided in both the plastic upper shell 1 and the plastic lower shell 3. The height of the support ribs 3.4 is such that the top of the support ribs 3.4 is flush with the surface of the flange, thereby supporting the filter screen 2. The support ribs 3.4 can not only prevent the plastic shell from being deformed, but also support the filter screen 2 to prevent it from being damaged by the impact of the medium.
[0023] The matters not described in detail in the present invention are all known technologies to those skilled in the art.
[0024] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.
Claims
1. A lightweight oil filter, comprising a plastic upper shell (1), a plastic lower shell (3) and a filter screen (2); characterized in that: The edge of the plastic upper shell (1) has a first flange (1.1), and the edge of the plastic lower shell (3) has a second flange (3.2) matching the first flange (1.1); the edge of the filter screen (2) is located between the first flange (1.1) and the second flange (3.2), and is fixed by welding the first flange (1.1) and the second flange (3.2).
2. A lightweight oil filter according to claim 1, characterized in that: The thickness of the first flange (1.1) is greater than the thickness of the second flange (3.2).
3. A lightweight oil filter according to claim 2, characterized in that: The bottom surface of the first flange (1.1) is provided with a circle of grooves (1.3), and the top surface of the second flange (3.2) is provided with a circle of protrusions (3.3) corresponding to the grooves (1.3); the protrusions (3.3) are fixed in the grooves (1.3) by welding.
4. A lightweight oil filter according to claim 3, characterized in that: The edge portion of the filter screen (2) is fixed to the groove (1.3) and the protrusion (3.3).
5. A lightweight oil filter according to claim 4, characterized in that: When the plastic upper shell (1) and the plastic lower shell (3) are connected by laser welding, the plastic upper shell (1) is a shell made of a light-transmitting material, and the plastic lower shell (3) is a shell made of a light-absorbing material.
6. A lightweight oil filter according to claim 5, characterized in that: A plurality of supporting ribs (3.4) are provided in both the plastic upper shell (1) and the plastic lower shell (3).