A diesel filter

Abstract

The present invention relates to the technical field of automobile accessories, and in particular to a diesel filter, comprising a cylinder, a filter cartridge arranged inside the cylinder, a connection seat installed at the upper end of the cylinder, a mounting rib fixed at the rear end of the connection seat, a pump body installed at the upper end of the connection seat, and a bottom cup installed at the lower end of the cylinder, wherein two electric heating rings distributed in concentric circles are installed on the inner side of the connection seat, an oil passage is arranged between the connection seat, the pump body and the cylinder, and a drain valve and an electric heating pipe are respectively installed at the lower end of the bottom cup. In the present invention, an adaptive dual-channel flow heating mode is adopted, and the heating mode of diesel and the circulation mode of diesel oil circuit can be adaptively adjusted according to the actual working temperature, viscosity and flow pressure of the filter, which not only effectively saves the consumption of electric energy and meets the environmental protection use requirements of the filter, but also comprehensively improves the working efficiency and working stability of the filter.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to a diesel filter. Background Art

[0002] A filter is an accessory that filters impurities or gases through filter paper. It generally refers to a car filter, which is an engine accessory. At the same time, a diesel filter, also known as a diesel filter, is mainly used to remove impurities such as dust, metal particles, carbon sediments and soot particles in diesel to protect the engine.

[0003] For example, the Chinese invention patent application with application number CN201210317729.2 and patent name "Diesel Filter with Electric Heating" provides a diesel filter with electric heating function. However, during its operation, it is difficult to adaptively adjust the heating mode of the oil and change the flow of the oil circuit according to the actual working temperature, viscosity and flow pressure of the filter, which can easily lead to waste of electric energy and make it difficult to meet environmental protection requirements. It will also lead to a decrease in the working efficiency of the filter and reduce the stability of the filter operation.

[0004] In view of this, it is particularly important in automotive accessories to design and manufacture a filter that can adaptively adjust the heating mode and oil flow according to working environment variables. Summary of the invention

[0005] The purpose of the present invention is to propose a diesel filter to solve the problem that the traditional filter with heating function is difficult to adaptively adjust the heating mode and oil flow according to the working environment variables, which is energy-consuming and has poor working stability.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A diesel filter comprises a cylinder, a filter cartridge arranged inside the cylinder, a connecting seat installed at the upper end of the cylinder, a mounting rib fixed at the rear end of the connecting seat, a pump body installed at the upper end of the connecting seat and a bottom cup installed at the lower end of the cylinder, two electric heating rings distributed in concentric circles are installed on the inner side of the connecting seat, an oil passage is arranged between the connecting seat, the pump body and the cylinder, a drain valve and an electric heating pipe are respectively installed at the lower end of the bottom cup, an oil passage regulating mechanism for controlling the flow path of diesel is arranged between the cylinder and the bottom cup, and an electric control unit for monitoring and controlling the temperature and pressure of the connecting seat and the cylinder flow wall is arranged on the connecting seat.

[0008] As a further description of the above technical solution:

[0009] The oil passage includes a liquid outlet pipe connected between the cylinder and the innermost electric heating ring, a liquid inlet pipe connected between the cylinder and the two electric heating rings, an external spiral tube integrally fixed to the middle of the lower end of the connecting seat, and liquid inlet holes arranged in a ring array at the lower end of the connecting seat and located between the two electric heating rings.

[0010] As a further description of the above technical solution:

[0011] A filter element is installed outside the filter cartridge, a liquid inlet end cover is fixedly connected to the upper end of the filter cartridge, and a check valve plate is installed between the lower end of the liquid inlet end cover and the upper end of the filter element.

[0012] As a further description of the above technical solution:

[0013] An inner spiral tube corresponding to the outer spiral tube is fixedly connected to the middle of the liquid inlet end cover, and a sealing ring is installed on the outer edge of the upper end of the liquid inlet end cover.

[0014] As a further description of the above technical solution:

[0015] The oil circuit regulating mechanism includes a fixed plate fixed inside the cylinder body and located below the filter cartridge, a vertical cylinder fixed in the middle of the fixed plate, a movable valve plate movably installed between the lower end of the fixed plate and the vertical cylinder, liquid exchange holes arranged in an annular array in the middle of the movable valve plate, a spiral extrusion spring sleeved between the vertical cylinder and the lower end of the movable valve plate, and a driving part arranged on the inner side of the bottom cup and driving the movable valve plate to move vertically.

[0016] As a further description of the above technical solution:

[0017] The driving part comprises a soft iron core vertically installed at the axis of the bottom cup, an energized coil wound around the outside of the soft iron core, and a magnetic block fixed at the middle of the movable valve disc and coaxial with the soft iron core.

[0018] As a further description of the above technical solution:

[0019] The outer edge of the fixed plate is provided with a plurality of vertical flow buckles distributed in a circular array and abutting against the lower end of the filter cartridge, the upper end of the vertical flow buckle is provided with a second liquid groove facing the vertical tube, the inner side of the vertical tube is fixedly connected with a fixed valve plate covering a magnetic suction block, and the upper end of the vertical tube is provided with a plurality of first liquid grooves flush with the upper end surface of the fixed plate.

[0020] As a further description of the above technical solution:

[0021] The electric control unit includes a temperature sensor installed at the front end of the connection seat with its probe located between two electric heating rings, a pressure sensor installed at the left end of the connection seat with its probe located between two electric heating rings, and an MCU installed at the right end of the connection seat.

[0022] As a further description of the above technical solution:

[0023] The output ends of the temperature sensor and the pressure sensor are both electrically connected to the input end of the MCU, and the output end of the MCU is electrically connected to the input ends of the pump body, the electric heating tube, the electric heating ring and the energized coil respectively.

[0024] As a further description of the above technical solution:

[0025] A first wiring harness is installed at the outer end of the pump body, and a second wiring harness is installed at the lower end of the electric heating tube.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. In the present invention, an adaptive dual-channel flow heating mode is adopted. When the temperature of the diesel pumped into the connecting seat through the pump body is too low or the flow pressure is too high, the energized coil outside the soft iron core can be energized. At this time, the soft iron core will generate electromagnetic force. Under the magnetic attraction between the soft iron core and the magnetic attraction block, the movable valve disc can be separated from the fixed disc downward. At this time, the diesel that has been initially heated by the electric heating ring can be filtered through the filter element and then enter the bottom cup for further heating through the electric heating pipe. The heated diesel will be discharged upward from the filter through the filter cartridge under the action of liquid flow. This structure can adaptively adjust the heating mode of the diesel and the flow mode of the diesel oil circuit according to the actual working temperature, viscosity and flow pressure of the filter, which not only effectively saves the consumption of electric energy and meets the environmental protection requirements of the filter, but also comprehensively improves the working efficiency and working stability of the filter.

[0028] 2. In the present invention, by arranging a series of temperature sensors, pressure sensors and MCU on the original connection seat, the temperature data and pressure data of the diesel in the filter can be monitored in real time. When the diesel temperature is too low, the viscosity is too high or the flow pressure is high, the MCU can control the electric heating ring to turn on, the electric heating pipe to turn on and the oil circuit regulating mechanism to turn on, so as to perform double-end heating and oil circuit pressure relief treatment on the diesel entering the filter. When the diesel temperature is at a normal value, the diesel viscosity is restored by heat and the flow pressure returns to a normal level, the MCU can control the electric heating ring to perform low-power heating and heat preservation on the diesel, turn off the electric heating pipe and turn off the oil circuit regulating mechanism, so as to ensure that the filter can normally filter the diesel and control the temperature, and improve the stability of the dynamic operation of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of the filter proposed by the present invention;

[0030] Figure 2 The three-dimensional disassembly diagram of the filter in the present invention is shown in FIG. Figure 1 ;

[0031] Figure 3 The three-dimensional disassembly diagram of the filter in the present invention is shown in FIG. Figure 2 ;

[0032] Figure 4 It is a schematic longitudinal section diagram of a 90° angle of the midsole cup of the present invention;

[0033] Figure 5 It is a three-dimensional longitudinal cross-sectional schematic diagram of the cylinder, filter cartridge and bottom cup in the present invention;

[0034] Figure 6 The three-dimensional disassembly diagram of the fixed disc and the movable valve disc in the present invention Figure 1 ;

[0035] Figure 7 The three-dimensional disassembly diagram of the fixed disc and the movable valve disc in the present invention Figure 2 ;

[0036] Figure 8 This is a schematic block diagram of the electrical connection of the electrical part of the filter in the present invention.

[0037] Legend:

[0038] 1. Cylinder; 2. Connecting seat; 201. Liquid outlet pipe; 202. Liquid inlet pipe; 203. External spiral tube; 204. Liquid inlet hole; 205. Mounting rib; 3. Pump body; 301. First wiring harness; 4. Bottom cup; 401. Drain valve; 5. Electric heating tube; 501. Second wiring harness; 6. Filter cartridge; 601. Liquid inlet end cover; 602. Internal spiral tube; 603. Filter element; 604. Check valve plate; 605. Sealing ring; 7. Fixed plate; 701. Vertical cylinder; 702. First liquid tank; 703. Fixed valve plate; 704. Vertical flow buckle; 705. Second liquid tank; 8. Moving valve disc; 801. Liquid exchange hole; 9. Magnetic block; 10. Electric heating ring; 11. Temperature sensor; 12. Pressure sensor; 13. MCU; 14. Power-on coil; 15. Helical extrusion spring; 16. Soft iron core. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0040] See also Figure 1-8The present invention provides a technical solution: a diesel filter, comprising a cylinder 1, a filter cartridge 6 arranged on the inner side of the cylinder 1, a connecting seat 2 installed on the upper end of the cylinder 1, a mounting rib 205 fixed at the rear end of the connecting seat 2, a pump body 3 installed on the upper end of the connecting seat 2 and a bottom cup 4 installed on the lower end of the cylinder 1, two electric heating rings 10 distributed in concentric circles are installed on the inner side of the connecting seat 2, an oil passage is arranged between the connecting seat 2, the pump body 3 and the cylinder 1, a drain valve 401 and an electric heating pipe 5 are respectively installed at the lower end of the bottom cup 4, an oil passage regulating mechanism for diesel flow path control is arranged between the cylinder 1 and the bottom cup 4, and an electric control unit for monitoring and controlling the temperature and pressure of the wall flowing through the connecting seat 2 and the cylinder 1 is arranged on the connecting seat 2.

[0041] Specifically, Figure 1-3 As shown, the oil passage includes a liquid outlet pipe 201 connected between the cylinder 1 and the innermost electric heating ring 10, a liquid inlet pipe 202 connected between the cylinder 1 and the two electric heating rings 10, an outer spiral tube 203 integrally fixed to the middle of the lower end of the connecting seat 2, and liquid inlet holes 204 arranged in a ring array at the lower end of the connecting seat 2 and located between the two electric heating rings 10. Diesel can enter between the two electric heating rings 10 and the connecting seat 2 through the liquid inlet pipe 202, and enter the cylinder 1 downward through the liquid inlet hole 204, and the filtered and heated diesel can be discharged from the filter upward through the outer spiral tube 203, the pump body 3 and the liquid outlet pipe 201.

[0042] Specifically, Figure 2 and Figure 5 As shown, a filter element 603 is installed on the outside of the filter cartridge 6, and a liquid inlet end cover 601 is fixedly connected to the upper end of the filter cartridge 6. A check valve plate 604 is installed between the lower end of the liquid inlet end cover 601 and the upper end of the filter element 603. The check valve plate 604 can prevent the diesel in the cylinder body 1 from entering upward and flowing back into the connecting seat 2 under normal conditions, thereby realizing the unidirectional downward entry of the diesel between the filter cartridge 6 and the filter element 603.

[0043] Among them, the middle part of the liquid inlet end cover 601 is fixedly connected with an inner spiral tube 602 corresponding to the outer spiral tube 203, and a sealing ring 605 is installed on the outer edge of the upper end of the liquid inlet end cover 601. When the outer spiral tube 203 on the connecting seat 2 is screwed into the inner spiral tube 602 through a thread, the connecting seat 2 will be locked above the cylinder 1, and at this time, the sealing ring 605 will seal the gap between the cylinder 1 and the connecting seat 2.

[0044] Specifically, Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the oil circuit regulating mechanism includes a fixed plate 7 fixed on the inner side of the cylinder 1 and located below the filter cartridge 6, a vertical cylinder 701 fixed in the middle of the fixed plate 7, a movable valve plate 8 movably installed between the lower end of the fixed plate 7 and the vertical cylinder 701, liquid exchange holes 801 arranged in an annular array in the middle of the movable valve plate 8, a spiral extrusion spring 15 sleeved between the vertical cylinder 701 and the lower end of the movable valve plate 8, and a driving part arranged on the inner side of the bottom cup 4 and driving the movable valve plate 8 to move vertically.

[0045] The driving part includes a soft iron core 16 vertically installed at the axis center of the bottom cup 4, an energized coil 14 wound around the outside of the soft iron core 16, and a magnetic block 9 fixed in the middle of the movable valve disc 8 and coaxial with the soft iron core 16. When the energized coil 14 is energized, the soft iron core 16 will generate electromagnetic force. Under the action of the magnetic force, the magnetic block 9 can move downward, and the movable valve disc 8 will squeeze the spiral extrusion spring 15 downward. At the same time, the movable valve disc 8 will separate from the fixed disc 7 downward, thereby realizing the opening of the oil circuit regulating mechanism.

[0046] The outer edge of the fixed plate 7 is provided with a plurality of vertical flow buckles 704 distributed in a circular array and abutting against the lower end of the filter cartridge 6. The upper end of the vertical flow buckle 704 is provided with a second liquid tank 705 facing the vertical cylinder 701. The inner side of the vertical cylinder 701 is fixedly connected with a fixed valve plate 703 covering the magnetic suction block 9. The setting of the fixed valve plate 703 can block the connection gap between the vertical cylinder 701 and the magnetic suction block 9 when the oil circuit regulating mechanism is in normal state or closed, thereby reducing the possibility of most diesel entering the bottom cup 4 downward. A plurality of first liquid grooves 702 flush with the upper end surface of the fixed plate 7 are provided at the upper end of the vertical cylinder 701. The arrangement of the first liquid grooves 702 and the second liquid grooves 705 can allow the diesel to flow in the upper half of the cylinder 1 when the oil circuit regulating mechanism is in a normal state or is closed, thereby allowing the diesel to flow between the cylinder 1, the filter cartridge 6, the filter element 603 and the closed fixed plate 7, and under the action of the pump body 3, the diesel is discharged upward through the vertical cylinder 701, the filter cartridge 6, the external spiral tube 203 and the liquid outlet pipe 201 into the automobile diesel oil circuit.

[0047] Specifically, Figure 1-8As shown, the electric control unit includes a temperature sensor 11 installed at the front end of the connecting seat 2 and the probe is between the two electric heating rings 10, a pressure sensor 12 installed at the left end of the connecting seat 2 and the probe is between the two electric heating rings 10, and an MCU 13 installed at the right end of the connecting seat 2. At the same time, the output ends of the temperature sensor 11 and the pressure sensor 12 are electrically connected to the input end of the MCU 13, and the output end of the MCU 13 is electrically connected to the input ends of the pump body 3, the electric heating tube 5, the electric heating ring 10 and the energized coil 14 respectively. The user can set the set range of diesel temperature and pressure according to the actual working parameters of the diesel, that is, the set value. During daily use, the temperature sensor 11 can monitor the temperature data of the diesel in real time, and the pressure sensor 12 can monitor the pressure data of the diesel in real time, and transmit the temperature data and pressure data to the MCU 13 in real time for analysis, calculation and comparison processing. When the temperature data and pressure data exceed or are lower than the set value, the pump body 3, the electric heating tube 5, the electric heating ring 10 and the energized coil 14 are controlled to adjust the corresponding working state.

[0048] A first wiring harness 301 is installed at the outer end of the pump body 3 , and a second wiring harness 501 is installed at the lower end of the electric heating tube 5 .

[0049] Working principle: When in use, the connecting seat 2 can be installed on the designated work position of the car through the installation ribs 205, fasteners and tools, and the car diesel oil circuit is connected to the outlet pipe 201 and the inlet pipe 202 on the connecting seat 2 respectively, and finally the first wiring harness 301 and the second wiring harness 501 on the filter are connected to the power supply and the vehicle control terminal to complete the assembly operation of the filter and the car. During daily use, when the pump body 3 is working, the inlet pipe 202 can generate negative pressure. At this time, the diesel in the car diesel oil circuit will be sucked into the cavity between the two electric heating rings 10. The temperature sensor 11 probe and the pressure sensor 12 probe between the two electric heating rings 10 can respectively collect the temperature data and pressure data of the diesel, and transmit the temperature and pressure data to the MCU 13 in real time for analysis, calculation and comparison processing. When the initial temperature of the diesel is lower than the set value, the initial viscosity is too large or the flow filtration pressure exceeds the set value, the MCU 13 can control the normal power of the electric heating ring 10 to turn on, the electric heating tube 5 to turn on, and the power-on coil 14 to energize. At this time, the soft iron core 16 will generate electromagnetic force. Under the magnetic attraction between the soft iron core 16 and the magnetic attraction block 9, the movable valve disc 8 can be separated from the fixed disc 7 downward. In this state, the diesel entering the connecting seat 2 will be heated in the first step. The heated diesel can go down through the liquid inlet hole 204 on the connecting seat 2 and enter between the cylinder 1 and the filter element 603. The filter element 603 can perform flow filtration on the diesel. The filtered diesel can go down through the vertical flow buckle 704 and the liquid exchange hole 801 and enter the bottom cup 4. The electric heating tube 5 in the bottom cup 4 can perform the second step of heating on the diesel. Under the action of the pump body 3, the diesel after comprehensive heating treatment can go up through the vertical cylinder 701, the filter cylinder 6, the outer spiral tube 203 and the liquid outlet pipe 201 and be discharged into the automobile diesel oil circuit. When the diesel temperature is at the set value, the diesel viscosity is heated to a normal level, and the flow pressure is restored to a normal level, the MCU 13 can control the electric heating ring 10 to perform low-power heating and insulation on the diesel, turn off the electric heating tube 5 and the energized coil 14. At this time, under the action of the elastic force of the spiral extrusion spring 15, the movable valve disc 8 will reset upward to the initial closed state. At this time, the diesel oil circuit entering the bottom cup 4 will be closed, and the diesel filtered by the filter element 603 after entering the cylinder 1 can enter the filter cartridge 6 upward through the second liquid tank 705 on the vertical flow buckle 704 and the first liquid tank 702 on the vertical cylinder 701, and be discharged into the automobile diesel oil circuit upward through the external spiral tube 203 and the liquid outlet pipe 201, so that the heating mode of the diesel and the flow path of the liquid circuit can be automatically adjusted according to the environmental variables, thereby improving the diesel filtering effect, improving the stability of the diesel filtering work and reducing the working energy consumption of the filter.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A diesel filter, comprising a cylinder (1), a filter cartridge (6) arranged inside the cylinder (1), a connecting seat (2) mounted on the upper end of the cylinder (1), a mounting rib (205) fixed to the rear end of the connecting seat (2), a pump body (3) mounted on the upper end of the connecting seat (2), and a bottom cup (4) mounted on the lower end of the cylinder (1), It is characterized in that Two electric heating rings (10) arranged in concentric circles are installed on the inner side of the connecting seat (2); an oil passage is provided between the connecting seat (2), the pump body (3) and the cylinder (1); a drain valve (401) and an electric heating pipe (5) are respectively installed at the lower end of the bottom cup (4); an oil passage regulating mechanism for controlling the flow path of diesel is provided between the cylinder (1) and the bottom cup (4); and an electric control unit for monitoring and controlling the temperature and pressure of the flow wall between the connecting seat (2) and the cylinder (1) is provided on the connecting seat (2); The oil passage comprises a liquid outlet pipe (201) connected between the barrel (1) and the innermost electric heating ring (10), a liquid inlet pipe (202) connected between the barrel (1) and the two electric heating rings (10), an outer spiral tube (203) integrally fixed to the middle of the lower end of the connecting seat (2), and liquid inlet holes (204) arranged in an annular array at the lower end of the connecting seat (2) and located between the two electric heating rings (10); A filter element (603) is installed on the outside of the filter cartridge (6), a liquid inlet end cover (601) is fixedly connected to the upper end of the filter cartridge (6), and a check valve plate (604) is installed between the lower end of the liquid inlet end cover (601) and the upper end of the filter element (603); An inner spiral tube (602) corresponding to the outer spiral tube (203) is fixedly connected to the middle of the liquid inlet end cover (601), and a sealing ring (605) is installed on the outer edge of the upper end of the liquid inlet end cover (601); The oil circuit regulating mechanism comprises a fixed plate (7) fixed inside the cylinder (1) and located below the filter cylinder (6), a vertical cylinder (701) fixed in the middle of the fixed plate (7), a movable valve plate (8) movably mounted between the lower end of the fixed plate (7) and the vertical cylinder (701), liquid exchange holes (801) arranged in an annular array in the middle of the movable valve plate (8), a helical extrusion spring (15) sleeved between the vertical cylinder (701) and the lower end of the movable valve plate (8), and a driving unit arranged inside the bottom cup (4) and driving the movable valve plate (8) to move vertically; The driving part comprises a soft iron core (16) vertically mounted at the axis of the bottom cup (4), an energized coil (14) wound around the outside of the soft iron core (16), and a magnetic attraction block (9) fixed at the middle of the movable valve disc (8) and coaxial with the soft iron core (16).

2. A diesel filter according to claim 1, It is characterized in that The outer edge of the fixed plate (7) is provided with a plurality of vertical flow buckles (704) distributed in a ring array and abutting against the lower end of the filter cartridge (6); the upper end of the vertical flow buckle (704) is provided with a second liquid groove (705) facing the vertical cylinder (701); the inner side of the vertical cylinder (701) is fixedly connected with a fixed valve plate (703) covering a magnetic attraction block (9); and the upper end of the vertical cylinder (701) is provided with a plurality of first liquid grooves (702) flush with the upper end surface of the fixed plate (7).

3. A diesel filter according to claim 1, It is characterized in that The electric control unit comprises a temperature sensor (11) installed at the front end of the connection base (2) and with its probe located between two electric heating rings (10), a pressure sensor (12) installed at the left end of the connection base (2) and with its probe located between the two electric heating rings (10), and an MCU (13) installed at the right end of the connection base (2).

4. A diesel filter according to claim 3, It is characterized in that The output ends of the temperature sensor (11) and the pressure sensor (12) are both electrically connected to the input end of the MCU (13), and the output end of the MCU (13) is electrically connected to the input ends of the pump body (3), the electric heating tube (5), the electric heating ring (10), and the energized coil (14), respectively.

5. A diesel filter according to claim 1, It is characterized in that A first wiring harness (301) is installed at the outer end of the pump body (3), and a second wiring harness (501) is installed at the lower end of the electric heating tube (5).

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