An oil filter assembly with water pipes

By adopting a design in which the upper sealing plate is directly connected to the water outlet pipe in the oil filter assembly, the problems of thermostat seat stripping and coolant leakage are solved, achieving efficient assembly and improved reliability, while reducing cost and complexity.

CN224452881UActive Publication Date: 2026-07-03浙江信鑫实业有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
浙江信鑫实业有限公司
Filing Date
2025-11-13
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The thermostat seat of the existing oil filter assembly at the cooler outlet is prone to stripping, which affects assembly quality and reliability. In addition, it requires high machining precision, poses a risk of coolant leakage, and increases the number of parts and cost.

Method used

The design adopts a direct connection between the top sealing plate and the outlet pipe, eliminating the thermostat seat and thermostat structure. Reliable flow channel connection is achieved through riveting and brazing processes, simplifying the component composition.

Benefits of technology

It improves assembly quality and reliability, reduces machining accuracy requirements, avoids coolant leakage, significantly reduces costs and production complexity, and improves production efficiency and product stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of oil filter technology, and more particularly to an oil filter assembly with a water pipe, including a filter seat, a cooler mounting seat and a filter mounting base on the filter seat, an oil cooler mounted on the cooler mounting base, and an upper sealing plate on the top of the oil cooler, with a water outlet integrally formed on the upper sealing plate; a water outlet pipe is directly connected to the water outlet of the upper sealing plate. This utility model eliminates the original thermostat seat and thermostat structure, and designs the water outlet of the oil cooler as a direct connection between the upper sealing plate and the water pipe, solving the quality problems caused by threaded connections and precision hole machining in the prior art, eliminating the risk of thread stripping during thermostat installation, and significantly reducing the stringent requirements for machining accuracy, avoiding coolant leakage problems caused by scratches or substandard roughness, thereby greatly improving the assembly quality and long-term reliability of the product.
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Description

Technical Field

[0001] This utility model relates to the field of oil filter technology, specifically to an oil filter assembly with a water pipe. Background Technology

[0002] The oil filter assembly is a key component of the engine lubrication system. Its functions include not only filtering impurities from the engine oil, but also often integrating an oil cooler to regulate the oil temperature. In existing technology, some oil filter assemblies have a thermostat seat at the cooler outlet. By installing the thermostat and connecting it to an external hose, the circulation of coolant is achieved.

[0003] The applicant, commissioned by a client to develop an oil filter assembly for a certain model, required a thermostat holder to be installed at the coolant outlet, with the client then installing the thermostat to achieve coolant circulation. However, during actual mass production, the M6 ​​thread on the thermostat holder was prone to stripping during thermostat installation, affecting assembly quality and reliability. The inner hole of the thermostat holder required high machining precision; scratches or substandard surface roughness could easily lead to coolant leakage. The presence of the thermostat and its holder increased the number of parts, machining steps, and overall cost, while also raising quality risks.

[0004] Therefore, an oil filter assembly with a water pipe is needed to improve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an oil filter assembly with a water pipe to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An oil filter assembly with a water pipe includes a filter housing, on which a cooler mounting base and a filter mounting seat are disposed, and an oil cooler is mounted on the cooler mounting seat.

[0008] The top of the oil cooler is provided with an upper sealing plate, and a water outlet is integrally formed on the upper sealing plate;

[0009] A water outlet pipe is directly connected to the water outlet interface of the upper sealing plate to replace the original thermostat seat and thermostat structure, thereby achieving direct connection with the external cooling pipeline.

[0010] As a preferred embodiment of this utility model, the water outlet of the upper sealing plate is an upwardly protruding water outlet pipe mounting protrusion. The water outlet pipe is fixed to the water outlet pipe mounting protrusion by a riveting process and communicates with the internal flow channel of the oil cooler.

[0011] As a preferred embodiment of this utility model, the upper sealing plate and the water outlet pipe are pre-assembled into a plate water pipe assembly by riveting process, and the assembly is then assembled with the body of the oil cooler and fixed by brazing process.

[0012] As a preferred embodiment of this utility model, the upper sealing plate is further provided with a water inlet pipe installation part for supplying water to the oil cooler.

[0013] As a preferred embodiment of this utility model, an oil filter is installed on the filter mounting base, and the filter base is provided with an internal oil passage for circulating oil between the oil cooler, the oil filter and the engine lubrication system.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model eliminates the original thermostat seat and thermostat structure, and designs the outlet of the oil cooler as a direct connection between the upper sealing plate and the water pipe. This solves the quality problems caused by threaded connection and precision hole machining in the background technology, eliminates the risk of thread stripping during thermostat installation, and significantly reduces the stringent requirements for machining accuracy. It also avoids coolant leakage problems caused by scratches or substandard roughness, thereby greatly improving the assembly quality and long-term reliability of the product.

[0016] This utility model achieves significant cost reduction and efficiency improvement by simplifying the composition and connection of components. Eliminating the thermostat seat and thermostat not only directly reduces material costs, but also reduces the corresponding machining, assembly and quality management links. While optimizing the production process and improving production efficiency, it reduces potential failure points and improves the overall quality stability of the oil filter assembly. Attached Figure Description

[0017] Figure 1 This is a first-view perspective perspective view of the present invention;

[0018] Figure 2 This is the front view of the present invention;

[0019] Figure 3 This is a second-view perspective perspective view of the present invention;

[0020] Figure 4 This is a top view of the present invention.

[0021] In the diagram: Filter holder 1, Cooler 2, Cooler mounting base 3, Upper sealing plate 4, Inlet pipe 5, Outlet pipe mounting protrusion 6, Outlet pipe 7, Filter mounting base 8, Filter 9. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please see Figure 1-4 This utility model provides a technical solution:

[0027] For an example, please refer to... Figure 1 , 2 3 and 4, an oil filter assembly with water pipes, mainly includes a filter housing 1, an oil cooler 2, and an oil filter 9. The filter housing 1 serves as the base of the assembly and is usually fixed to the engine block via its mounting surface. The filter housing 1 has complex internal oil passages cast inside. A cooler mounting seat is provided on one side of the filter housing 1 for mounting the oil cooler 2; a filter mounting seat 8 is provided at its bottom or side for screwing on the replaceable oil filter 9.

[0028] Please refer to Figure 1 , 23 and 4, the oil cooler 2 is the core improved component of this embodiment. Its top is fixed with an upper sealing plate 4 by brazing or other methods. The function of the upper sealing plate 4 is to seal the cooler body and integrate the water interface. An outlet interface is integrally formed on the upper sealing plate 4, specifically a raised outlet pipe mounting protrusion 6. In addition, the upper sealing plate 4 usually also has an inlet pipe mounting part 5 for connecting the inlet pipe of the engine cooling system to introduce coolant into the oil cooler 2.

[0029] Please refer to Figure 1 , 2 3 and 4, the water outlet pipe 7 is a key component of this embodiment. It is directly connected to the water outlet pipe mounting protrusion 6, eliminating the need for the original thermostat seat and thermostat structure. To achieve a reliable and sealed connection, the water outlet pipe 7 is fixed to the water outlet pipe mounting protrusion 6 by riveting, forming a closed flow channel. The outer end of the water outlet pipe 7 can be directly connected to the engine's cooling water return hose.

[0030] In a preferred manufacturing process, the upper sealing plate 4 and the water outlet pipe 7 are first pre-assembled into a flat water pipe assembly by riveting. This sub-assembly is then assembled with the core of the oil cooler 2 as a whole, and finally fixed by brazing to form a complete and reliable oil cooler assembly. This process sequence of riveting first and then brazing ensures the assembly accuracy and welding quality, and fundamentally avoids the risk of stripped threads and internal hole damage of the original thermostat seat.

[0031] Working principle: When the engine is running, the engine oil, driven by the oil pump, enters the internal oil passage from the oil inlet of the filter housing 1, and first flows through the oil cooler 2. At the same time, the engine's cooling system pumps the coolant into the cooling chamber of the oil cooler 2 through the hose connected to the water inlet pipe mounting part 5. Inside the oil cooler 2, the high-temperature engine oil and the low-temperature coolant exchange heat through metal fins, thereby reducing the oil temperature.

[0032] After heat exchange, the coolant temperature rises and it flows from the internal channel of the upper sealing plate 4 to the outlet pipe mounting protrusion 6. Then it flows directly out through the outlet pipe 7 and returns to the engine's cooling system for cooling. This water circulation process has lower flow resistance and more direct connection due to the elimination of the thermostat as an intermediate link, which improves reliability and efficiency.

[0033] After cooling, the engine oil continues to flow through the internal oil passage of the filter housing 1 to the oil filter 9. Inside the filter 9, impurities such as metal shavings and carbon deposits in the engine oil are filtered by the filter paper. The clean engine oil finally flows out from the oil outlet of the filter housing 1 and is resupplying the lubrication points of the engine.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil filter assembly with a water pipe, comprising a filter housing (1), wherein a cooler mounting base and a filter mounting base (8) are disposed on the filter housing (1), and an oil cooler (2) is mounted on the cooler mounting base, characterized in that: The top of the oil cooler (2) is provided with an upper sealing plate (4), and a water outlet is integrally formed on the upper sealing plate (4); A water outlet pipe (7) is directly connected to the water outlet of the upper sealing plate (4) to replace the original thermostat seat and thermostat structure, so as to realize direct connection with the external cooling pipeline.

2. The water-piped oil filter assembly of claim 1, wherein: The water outlet of the upper sealing plate (4) is an upward-protruding water outlet pipe mounting protrusion (6). The water outlet pipe (7) is fixed to the water outlet pipe mounting protrusion (6) by riveting and is connected to the internal flow channel of the oil cooler (2).

3. The water-piped oil filter assembly of claim 2, wherein: The upper sealing plate (4) and the water outlet pipe (7) are pre-assembled into a plate water pipe assembly by riveting process. The assembly is then assembled with the body of the oil cooler (2) and fixed by brazing process.

4. The water-piped oil filter assembly of claim 3, wherein: The upper sealing plate (4) is also provided with a water inlet pipe installation part (5) for supplying water to the oil cooler (2).

5. The water-piped oil filter assembly of claim 4, wherein: An oil filter (9) is installed on the filter mounting base (8). The filter base (1) has an internal oil passage that allows the oil to circulate between the oil cooler (2), the oil filter (9), and the engine lubrication system.