Filter seat with built-in heater

By incorporating a heater into the filter housing, the problem of waste from replacing built-in heaters in filters is solved, enabling long-term use and low-cost maintenance of the filter housing, and ensuring that oil flow is not affected.

CN224228767UActive Publication Date: 2026-05-12ZHEJIANG YONGYU FILTER SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YONGYU FILTER SYST CO LTD
Filing Date
2025-06-30
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing filters typically have built-in heating components placed in the oil cup, which means the heater is replaced along with the filter holder, resulting in waste. Furthermore, traditional filter holder structures require periodic replacement, increasing costs.

Method used

Design a filter holder with a built-in heater, install the heater inside the filter holder, connect it to the filter through an external threaded connection end, and set an oil passage hole and an oil inlet pipe inside the heater. Power is supplied by a power terminal and wires to fix the heater and supply power, so as to avoid interfering with the flow of oil.

Benefits of technology

This enables the heater to be used for a long time, reduces the frequency of filter replacement and resource waste, reduces maintenance costs, and ensures that the flow of oil is not interfered with.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224228767U_ABST
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Abstract

The utility model discloses a filter seat with a built-in heater, which comprises a seat body, a mounting surface is arranged on the lower side of the seat body, the axis of the mounting surface is concave inwards to form a mounting groove, an external thread connecting end is arranged in the mounting groove, and the external thread connecting end is used for being connected with a filter so as to enable the filter to be attached to the mounting surface. A first oil outlet hole is formed in the external thread connecting end, and a heater is installed in the external thread connecting end. According to the utility model, the heater is arranged on the valve seat, and different from a traditional filter arranged in a filter oil cup, the valve seat belongs to an accessory which does not need to be replaced for a long time, so that the aims of reducing maintenance cost and reducing resource waste can be fulfilled; according to the utility model, the oil passing hole is formed in the heater, so that the installed heater is prevented from interfering with oil circulation.
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Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a filter holder with a built-in heater. Background Technology

[0002] An air filter is an accessory that filters impurities in fuel to improve engine life and efficiency. It is usually mounted on a filter holder for vehicle operation.

[0003] To prevent the oil inside the filter from solidifying at low temperatures and causing difficulty in starting the engine quickly, the conventional solution is to build a heating element into the filter. However, as shown in the filter with built-in heating function disclosed in application number 202320984671.0, the current heating element is generally placed in the oil cup connected to the filter. The filter oil cup is made of nylon, which is a vulnerable part that needs to be replaced regularly. When it is replaced, the heater is also replaced, resulting in great waste. Therefore, an improvement is needed so that the heater can be placed inside the filter holder to reduce consumable costs without significantly changing the filter holder structure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a filter holder with a built-in heater to solve the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a filter holder with a built-in heater, including a seat body, a mounting surface on the lower side of the seat body, an indentation at the axis of the mounting surface to form a mounting groove, a filter for connecting in the mounting groove so that the filter is attached to the external threaded connection end of the mounting surface, an oil outlet hole is provided in the external threaded connection end, and a heater is installed in the external threaded connection end.

[0006] The heater includes a mounting part and a heating part. The curved surface of the first oil outlet hole is also machined with an internal thread, and the mounting part is threadedly connected to the first oil outlet hole. The mounting part is tubular, and the heating part is inserted upward and fixed in the mounting part. The curved surface of the mounting part located on the upper side of the heating part is also provided with an oil passage hole that runs through the inside and outside.

[0007] The housing is also provided with an oil inlet pipe, and the end face of the oil inlet pipe is provided with an oil inlet hole that communicates with the mounting groove.

[0008] Preferably, a power connection post is provided on the bottom surface of the mounting groove, a first wire is connected to the upper end of the heating part, a terminal is provided at the end of the first wire, and the terminal is fixed to the power connection post by screws;

[0009] One end of the power terminal extending outside the base is connected to a second wire, which is connected to a wire harness box fixed on the base and can be powered.

[0010] Preferably, a boss is integrally formed at the connection between the external threaded connection end and the bottom surface of the mounting groove. A through hole is provided in the end face of the boss, which passes through the first oil outlet hole. The first wire extends into the first oil outlet hole and passes through the through hole.

[0011] Preferably, the through hole is fitted with a wire harness sealing plug.

[0012] Preferably, the housing contains a pump, the inlet of which is connected to the first oil outlet, and the housing also contains a second oil outlet, the outlet of which is connected to the second oil outlet.

[0013] Preferably, the second oil outlet and the first oil outlet are connected by a connecting hole, and the connecting hole is provided with a one-way valve that allows one-way flow into the second oil outlet.

[0014] Preferably, the one-way valve is a reverse valve.

[0015] Preferably, the base body is provided with a fixing seat that is perpendicular to the mounting surface, and the fixing seat is provided with bolt pre-drilled holes.

[0016] This utility model provides a filter holder with a built-in heater, which has the following beneficial effects:

[0017] This utility model installs a heater on the valve seat. Unlike traditional filters that are installed in the filter oil cup, the valve seat is a part that does not need to be replaced for a long time, which can reduce maintenance costs and reduce resource waste.

[0018] This invention features an oil passage hole inside the heater to prevent the installed heater from interfering with the flow of oil. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the appearance of this utility model;

[0020] Figure 2 This is a schematic diagram of the appearance of this utility model from another perspective;

[0021] Figure 3 yes Figure 2 A schematic diagram showing the appearance after the heater has been removed;

[0022] Figure 4 This is a schematic diagram of the heater in this utility model;

[0023] Figure 5 This is a bottom view of the present invention;

[0024] Figure 6 This is a structural schematic diagram of the present invention.

[0025] In the picture:

[0026] 11. Base; 12. Mounting slot; 13. External threaded connection end; 14. No. 1 oil outlet; 15. Heater; 16. Electrical connector; 17. Boss; 18. Sealing plug; 19. Oil inlet; 20. Pump; 21. No. 2 oil outlet; 22. Connecting hole; 23. One-way valve; 31. Fixing base; 51. Mounting part; 52. Heating part; 53. Oil passage hole; 54. No. 1 wire; 55. Terminal; 56. No. 2 wire; 57. Wiring harness box. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Reference Figures 1-6 According to an embodiment of the filter holder with a built-in heater of the present invention, it includes a seat body 11, the lower side of the seat body 11 is provided with a mounting surface, the axis of the mounting surface is recessed to form a mounting groove 12, the mounting groove 12 is provided with a filter for connecting, so that the filter is attached to the external threaded connection end 13 of the mounting surface, the external threaded connection end 13 is provided with an oil outlet hole 14, and the seat body 11 is also provided with an oil inlet pipe, the end face of the oil inlet pipe is provided with an oil inlet hole 19 communicating with the mounting groove 12.

[0032] When a filter is fixed to the mounting surface via the external threaded connection end 13, oil will enter the filter through the oil inlet hole 19 and flow out through the first oil outlet hole 14 after filtration.

[0033] To prevent the oil inside the filter from cooling and solidifying, a heater 15 is installed inside the external threaded connection end 13.

[0034] In this embodiment, as Figure 4 As shown, the heater 15 includes a mounting part 51 and a heating part 52. The curved surface of the first oil outlet 14 is also machined with an internal thread, and the mounting part 51 is threadedly connected to the first oil outlet 14. The mounting part 51 can also be sealed with glue between itself and the first oil outlet 14 to prevent it from coming off. The mounting part 51 is tubular. The heating part 52 is inserted upward and fixed in the mounting part 51. The curved surface of the mounting part 51 located on the upper side of the heating part 52 is also provided with an oil passage hole 53 that runs through the inside and outside.

[0035] With the heater 15 provided, the oil, after being filtered, enters the first oil outlet 14 through the oil passage 53 and then flows out.

[0036] The wiring method of the heater 15 is as follows: a power terminal 16 is provided on the bottom surface of the mounting groove 12, a first wire 54 is connected to the upper end of the heating part 52, a terminal 55 is installed at the end of the first wire 54, and the terminal 55 is fixed to the power terminal 16 by screws.

[0037] One end of the power terminal 16 extending outside the base 11 is connected to a second wire 56, and the second wire 56 is connected to a wire harness box 57 fixed on the base 11 and can be powered.

[0038] The first wire 54 can pass through the oil passage 53 and be connected to the terminal 16 via the terminal 55. In the second embodiment of the heater 15, in order to reduce the oil impact on the first wire 54, such as... Figure 2As shown, a boss 17 is integrally formed at the connection between the external threaded connection end 13 and the bottom surface of the mounting groove 12. The end face of the boss 17 is provided with a through hole that passes through the first oil passage hole 14. The first wire 54 extends into the first oil passage hole 14 and passes through the through hole.

[0039] In addition, a wire harness sealing plug 18 is installed in the through hole to prevent the oil in the No. 1 oil outlet 14 from flowing back through the through hole into the mounting groove 12 and the filter.

[0040] In a third embodiment of the filter holder with a built-in heater, a pump 20 is installed inside the holder 11 to increase the flow rate, such as... Figure 6 As shown, the inlet of the pump 20 is connected to the first oil outlet 14, and the base 11 is also provided with a second oil outlet 21 (which is blocked by a plug in the figure). The outlet of the pump 20 is connected to the second oil outlet 21.

[0041] It should be noted that the power cord inside the pump 20 is also connected to the wiring harness box 57 to be powered together, and to avoid wiring harness tangling.

[0042] Furthermore, the second oil outlet 21 and the first oil outlet 14 are connected by a connecting hole 22, and the connecting hole 22 is provided with a one-way valve 23 that flows unidirectionally into the second oil outlet 21. In this embodiment, the one-way valve 23 is a reverse valve to prevent oil backflow.

[0043] In order to facilitate the installation and fixation of the base 11, the base 11 is provided with a fixing seat 31 that is perpendicular to the mounting surface. The fixing seat 31 is provided with bolt pre-drilled holes to facilitate the installation of the filter base with built-in heater.

[0044] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A filter holder with a built-in heater, comprising a seat body (11), wherein the lower side of the seat body (11) is provided with a mounting surface, and the mounting surface is recessed at its axis to form a mounting groove (12), characterized in that: The mounting groove (12) is provided with a filter for connecting the filter so that the filter is attached to the external threaded connection end (13) of the mounting surface. The external threaded connection end (13) is provided with an oil outlet hole (14) and a heater (15) is installed in the external threaded connection end (13). The heater (15) includes a mounting part (51) and a heating part (52). The curved surface of the first oil outlet (14) is also machined with an internal thread, and the mounting part (51) is threaded into the first oil outlet (14). The mounting part (51) is tubular, and the heating part (52) is inserted upward and fixed in the mounting part (51). The curved surface of the mounting part (51) located on the upper side of the heating part (52) is also provided with an oil passage hole (53) that runs through the inside and outside. The base (11) is also provided with an oil inlet pipe, and the end face of the oil inlet pipe is provided with an oil inlet hole (19) that communicates with the mounting groove (12).

2. The filter holder with a built-in heater according to claim 1, characterized in that: A power connection post (16) is provided on the bottom surface of the mounting groove (12). A first wire (54) is connected to the upper end of the heating part (52). A terminal (55) is installed at the end of the first wire (54), and the terminal (55) is fixed to the power connection post (16) by screws. The end of the power terminal (16) extending outside the base (11) is connected to a second wire (56), and the second wire (56) is connected to a wire harness box (57) fixed on the base (11) and can be powered.

3. A filter holder with a built-in heater according to claim 2, characterized in that: A boss (17) is integrally formed at the connection between the external threaded connection end (13) and the bottom surface of the mounting groove (12). A through hole is provided in the end face of the boss (17) and passes through the first oil outlet hole (14). The first wire (54) extends into the first oil outlet hole (14) and passes through the through hole.

4. A filter holder with a built-in heater according to claim 3, characterized in that: The through hole is fitted with a wire harness sealing plug (18).

5. A filter holder with a built-in heater according to claim 1, characterized in that: The seat (11) is equipped with a pump (20), the inlet of the pump (20) is connected to the first oil outlet (14), the seat (11) is also provided with a second oil outlet (21), and the outlet of the pump (20) is connected to the second oil outlet (21).

6. A filter holder with a built-in heater according to claim 5, characterized in that: The second oil outlet (21) and the first oil outlet (14) are connected by a connecting hole (22), and a one-way valve (23) is provided in the connecting hole (22) to flow in one direction toward the second oil outlet (21).

7. A filter holder with a built-in heater according to claim 6, characterized in that: The one-way valve (23) is a reverse valve.

8. A filter holder with a built-in heater according to claim 1, characterized in that: The base (11) is provided with a fixing seat (31) that is perpendicular to the mounting surface, and the fixing seat (31) is provided with bolt pre-drilled holes.