CN217783656U - Fuel oil heating device integrating water level detection function - Google Patents
Fuel oil heating device integrating water level detection function Download PDFInfo
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- CN217783656U CN217783656U CN202222084277.XU CN202222084277U CN217783656U CN 217783656 U CN217783656 U CN 217783656U CN 202222084277 U CN202222084277 U CN 202222084277U CN 217783656 U CN217783656 U CN 217783656U
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- water level
- level detection
- insulating shell
- fuel
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Abstract
The utility model discloses a fuel oil heating device with integrated water level detection function, which comprises an insulating shell, wherein one surface of the insulating shell, which is matched with a fuel oil filter, is connected with a heating piece, and the heating piece is used for stretching into the fuel oil filter to heat fuel oil; the insulating shell is connected with a water level detection assembly, the insulating shell is provided with a leading-out port, a temperature controller is arranged in the insulating shell, and the temperature controller is connected with the heating sheet; the temperature controller and the external circuit of the water level detection component are integrated together and are led out from the leading-out port. The utility model discloses three kinds of water level detection subassembly's technical scheme has still been given. The utility model discloses when installing on the filter, only need an erection joint interface when realizing water level detection and fuel heating function, make compacter small and exquisite that the filter volume was done, practice thrift installation space to product cost after the integration can not increase, when saving during production assembly, improves fuel filter's assembly efficiency.
Description
Technical Field
The utility model relates to a diesel motor car fuel filters technical field, especially relates to space optimization technique.
Background
Diesel engines are used in large-scale construction machines, trucks and tractors with large loads, and the like. In cold winter, the diesel oil is easy to be coagulated and cured, so that the fluidity of the diesel oil is poor, a fuel oil pipeline is blocked, and a vehicle cannot be started or is suddenly flamed out in the driving process. In order to solve the problem of wax formation of diesel oil at low temperature, a heating device is generally required to be arranged on a fuel filter to preheat the diesel oil.
In order to avoid the influence of moisture in the diesel on the work of an engine, the fuel filter can also separate the water of the diesel, the separated water is stored in a water collecting cup at the bottom of the shell of the filter, and when the stored water reaches a certain amount, the water is discharged, so that a water level sensor is required to be installed at the bottom of the shell of the fuel filter and used for detecting the water level in the water collecting cup of the fuel filter in real time.
In the technology commonly used in the industry at present, a heating device and a water level sensor of a filter are two independent parts, so that the defects that the installation space of a filter shell is more occupied, and the arrangement of the heater and the water level sensor becomes difficult under the condition that the installation space of the shell is insufficient are overcome.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fuel heating device of integrated water level detection function occupies a mounted position on burning oil filter, realizes water level detection and two kinds of functions of heating, and concentrates more and neat to the external connection.
In order to achieve the purpose, the fuel oil heating device with the integrated water level detection function comprises an insulating shell, wherein one surface of the insulating shell, which is matched with a fuel oil filter, is connected with a heating sheet, and the heating sheet is used for extending into the fuel oil filter to heat fuel oil; the insulating shell is connected with a water level detection assembly, the insulating shell is provided with a leading-out port, a temperature controller is arranged in the insulating shell, and the temperature controller is connected with the heating sheet; the temperature controller and the external circuit of the water level detection component are integrated together and are led out from the leading-out port.
The water level detection assembly comprises a water level probe, a resistance module and a water level signal output interface, the water level probe and the resistance module are connected in parallel through a lead to form a detection device, the detection device is connected with the water level signal output interface, and a connecting circuit of the water level signal output interface is used as an external connecting circuit of the water level detection assembly; the resistance module is arranged in the insulating shell and is isolated from the inner space of the water collecting cup of the fuel filter, and the water level probe is used for extending into the water collecting cup of the fuel filter.
The water level detection assembly comprises a water level signal output interface and a hollow insulating column connected to the insulating shell, a reed pipe is arranged in the hollow insulating column, two iron-containing metal sheets are arranged in the reed pipe, and the two metal sheets are positioned at the axis of the hollow insulating column; a floater is sleeved outside the hollow insulating column in a sliding manner, a magnetic block used for connecting two metal sheets in the reed pipe is embedded in the floater, and the overall density of the floater is greater than that of diesel oil and less than that of water; the two metal sheets are respectively connected with the water level signal output interface through leads;
the top of the hollow insulating column is provided with a baffle ring for preventing the floater from floating upwards and separating from the hollow insulating column;
the magnetic block is far away from the two metal sheets when the floater does not float upwards; after the floater floats upwards, the magnetic block is close to the two metal sheets under the state that the magnetic block is blocked by the blocking piece, and the two metal sheets are magnetized by the magnetic field to be communicated;
and a connecting circuit of the water level signal output interface is used as an external connecting circuit of the water level detection assembly.
The magnetic blocks are annular around the hollow insulating column or are distributed more than two in a centrosymmetric way around the axis of the hollow insulating column.
The water level detection assembly comprises a circuit board, an electrical interface and at least two water level probes;
the lower parts of the two water level probes extend into the insulating shell and are connected with the circuit board in a welding and conductive mode; the upper parts of the two water level probes extend out of the insulating shell and are used for detecting the water level; the circuit board is provided with an operational amplifier, a resistor, a capacitor and a triode or an MOS tube;
the electric interface comprises a power supply interface and a water level signal output interface; when the water level probe is positioned in the diesel oil, the connecting circuit of the water level signal output interface outputs a high level or a low level; the power interface is connected with a power circuit, and the power circuit is integrated with an external circuit of the temperature controller and an external circuit of the water level detection assembly together to be used as a part of the integrated wiring harness.
The utility model discloses have following advantage:
the shape and volume of fuel filters are often limited to the in-vehicle installation space of a particular vehicle type. For the vehicle type with limited installation space in the vehicle, the fuel filter should be designed to be as small as possible on the basis of meeting the filtering function, so that the surface installation space of the fuel filter is limited.
The utility model discloses simple structure need not install heating device and water level detection subassembly respectively to oil cleaner, has reduced the annex on the whole and has taken the space that fires oil cleaner, and the convenience is at the water level detection subassembly of limited air cleaner installation space in installation heating device, also allows the casing design that fires oil cleaner to get littleer.
The external circuit of temperature controller and the external circuit of water level detection subassembly are put together for fuel filter concentrates more and neatly to the external connection. The insulating shell is suitable for installing water level detection assemblies with various characteristics due to the insulating characteristic of the insulating shell.
When adopting water level probe and electronic module, according to the size of the resistance value of output, on-vehicle ECU learns whether the water level of filter water-collecting cup has flooded the probe, and then makes the installation the utility model discloses a whole car realizes water level detection's function.
When the floater is used, the vehicle-mounted ECU detects the water level by switching off or switching on two metal sheets which are in conductive connection with the water level signal output interface, and the water level is low when the water level is switched off and does not need to be drained; high water level when putting through needs the drainage, makes the installation the utility model discloses a whole car realizes water level detection's function.
When using two water level probes and circuit board, on-vehicle ECU learns whether the probe has been flooded to the water level that the filter catchment cup according to high level or low level signal, makes the installation the utility model discloses a whole car realizes water level detection's function.
The power interface can be an independent interface or can share one interface with the temperature controller.
In a word, the utility model discloses to fire oil cleaner's traditional heating device and water level detection device and integrated, only need an erection joint interface when installing on the filter, can make compacter small and exquisite that the filter volume was done, practice thrift installation space to product cost after the integration can not increase, and in time saving during the production assembly, the improvement fires oil cleaner's assembly efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment and a third embodiment;
FIG. 2 is a schematic circuit diagram according to the first embodiment;
FIG. 3 is a schematic structural view of the second embodiment;
FIG. 4 is an enlarged view at A in FIG. 3;
FIG. 5 is a schematic diagram of the circuit structure of the second embodiment;
FIG. 6 is a schematic diagram of the circuit configuration of the third embodiment;
fig. 7 is a top view of fig. 3.
Detailed Description
As shown in fig. 1 to 7, the utility model provides a fuel oil heating device with integrated water level detection function, which comprises an insulating shell 1, wherein a heating piece 2 is connected to one side of the insulating shell 1, which is matched with a fuel oil filter, and the heating piece 2 is used for extending into the fuel oil filter to heat fuel oil; the insulating shell 1 is connected with a water level detection assembly, the insulating shell 1 is provided with a leading-out port 3, a temperature controller 4 is arranged in the insulating shell 1, and the shell of the temperature controller 4 protrudes out of the insulating shell 1. The temperature controller 4 is connected with the heating sheet 2; an external line of the temperature controller 4 and an external line 5 of the water level detection assembly are integrated together to form a collective wiring harness 6 which is led out from the leading-out port 3 and is used for connecting a vehicle-mounted circuit, and finally the collective wiring harness is connected with a vehicle-mounted ECU 7.
The shape and volume of fuel filters are often limited to the in-vehicle installation space of a particular vehicle type. For the vehicle type with limited installation space in the vehicle, the fuel filter should be designed to be as small as possible on the basis of meeting the filtering function, so that the surface installation space of the fuel filter is limited.
The utility model discloses simple structure need not install heating device and water level detection subassembly respectively to oil cleaner, has reduced the annex on the whole and has taken the space that fires oil cleaner, and the convenience is at the water level detection subassembly of limited air cleaner installation space in installation heating device, also allows the casing design that fires oil cleaner to get littleer.
The external circuit of the temperature controller 4 and the external circuit of the water level detection assembly are integrated together, so that the fuel filter is more concentrated and tidy in external connection. The insulating case 1 is suitable for mounting water level detecting components having various characteristics due to its insulating characteristics.
Example one
As shown in fig. 1 and 2, the water level detecting assembly of the present embodiment includes a water level probe 8, a resistor module 9 and a water level signal output interface 10, the water level probe 8 and the resistor module 9 are connected in parallel by a wire to form a detecting device, the detecting device is connected to the water level signal output interface 10, and a connection line of the water level signal output interface 10 is used as an external connection line 5 of the water level detecting assembly; the resistance module 9 and the water level signal output interface 10 are arranged in the insulating shell 1 and isolated from the inner space of the water collecting cup of the fuel filter, and the water level probe 8 is used for extending to a preset position in the water collecting cup of the fuel filter. In this embodiment, two water level probes 8 are provided in parallel.
The during operation the utility model discloses install on firing oil filter, thereby heating plate 2 can heat the fuel with the fuel contact, and water level probe 8 stretches into the cup that catchments. When the water level is low, the water level probe 8 is contacted with the diesel oil. Because diesel is not conductive and the resistance value of water is much smaller than that of the resistance module 9, when the water level probe 8 is submerged in water, the water level signal output interface 10 outputs a very small resistance value (close to zero ohm); and when water level probe 8 was in fuel or air, water level signal output interface 10 can export a resistance value rather than the resistance module 9 resistance value is very close, like this according to the size of the resistance value of output, on-vehicle ECU7 knows clear ware water cup's water level and whether submerged the probe, and then made the installation the utility model discloses a whole car realizes water level detection's function.
Example two
As shown in fig. 3, 4, 5 and 7, the present embodiment is different from the first embodiment in that: the water level detection assembly comprises a water level signal output interface 10 and a hollow insulating column 11 connected to the insulating shell 1 through a connecting frame 17, a reed pipe 12 is arranged in the hollow insulating column 11, two iron-containing metal sheets 13 are arranged in the reed pipe 12, and the two metal sheets 13 are positioned at the axis of the hollow insulating column 11; a floater 14 is slidably sleeved outside the hollow insulating column 11, a magnetic block 15 for communicating two metal sheets 13 in the reed pipe 12 is embedded in the floater 14, and the overall density of the floater 14 is greater than that of diesel oil and less than that of water; the two metal sheets 13 are respectively connected with the water level signal output interface 10 through leads;
the top of the hollow insulating column 11 is provided with a baffle ring 16 for preventing the floater 14 from floating upwards and separating from the hollow insulating column 11;
the magnetic block 15 is far away from the two metal sheets 13 when the floater 14 is not in the floating state; after the floater 14 floats upwards, the magnetic block 15 approaches the two metal sheets 13 under the state that the magnetic block 15 is blocked by the blocking piece, and the two metal sheets 13 are magnetized by the magnetic field to be communicated;
the connection line of the water level signal output interface 10 is used as the external connection line 5 of the water level detection assembly.
The magnetic blocks 15 are annular around the hollow insulating column 11 or are distributed more than two in a central symmetry manner about the axis of the hollow insulating column 11, so that the magnetic force applied to the metal sheet 13 in the circumferential direction is consistent.
When the water level is not high, the floater 14 is positioned at the bottom of the hollow insulating column 11 because the density of the floater is higher than that of diesel oil, and the two metal sheets 13 are far away from the magnetic field and are not magnetized to be disconnected with each other. When the water level is higher, the floater 14 floats upwards due to the density of the floater is lower than that of water, the magnetic block 15 is close to the two metal sheets 13, and the two metal sheets 13 are magnetized in a magnetic field and attract each other. When the floater 14 is used, the vehicle-mounted ECU7 detects the water level by whether the two metal sheets 13 which are in conductive connection with the water level signal output interface 10 are switched off or on, and the water level is low when the water level is switched off and does not need to be drained; when the switch is switched on, the water level is high, and water needs to be drained.
EXAMPLE III
As shown in fig. 1 and 6, the present embodiment is different from the first embodiment in that:
the water level detection assembly comprises a circuit board 18, an electrical interface and at least two water level probes 8;
the lower parts of the two water level probes 8 extend into the insulating shell 1 and are connected with the circuit board 18 in a welding and conducting manner (the water level probes 8 and the insulating shell 1 are in a water-tight state, such as sealing by sealant); the upper portions of the two water level probes 8 protrude out of the insulating housing 1 and are used to detect the water level. When the water level in the fuel filter is low, the water level probe 8 is contacted with the fuel, and when the water level is high, the water level probe 8 is contacted with the water; the circuit board 18 is at least provided with an operational amplifier, a resistor, a capacitor and a triode or an MOS tube, wherein the triode and the MOS tube are selected from two, and the operational amplifier, the resistor and the capacitor are necessary components; the operational amplifier, the resistor, the capacitor, the triode and the MOS transistor are all in the prior art and are not shown in the figure.
The electrical interface comprises a power interface 19 and a water level signal output interface 10; when the water level probe 8 is located in water, the connection line of the water level signal output interface 10 (i.e. the external line 5 of the water level detection assembly) outputs high level or low level to the outside, and when the water level probe 8 is located in diesel oil, the connection line of the water level signal output interface 10 (i.e. the external line 5 of the water level detection assembly) outputs low level or high level to the outside. The power interface 19 is connected with a power line 20, the power line 20 is integrated with an external line of the temperature controller 4 and an external line 5 of the water level detection assembly, and is led out from the leading-out port 3 as a part of the integrated wiring harness 6 and used for being connected with a vehicle-mounted circuit, and finally is connected with the vehicle-mounted ECU 7. Power supply lines 20 provide power to the circuit board 18. The power interface 19 may be a separate interface as shown in fig. 6, or may share an interface with the thermostat 4.
The during operation the utility model discloses install on firing oil filter, thereby heating plate 2 can heat the fuel with the fuel contact, and two water level probes 8 stretch into the cup that catchments. When the water level is low, the water level probe 8 is contacted with the diesel oil. The diesel oil is not conductive, but the water is conductive, so that when the two water level probes 8 are in the diesel oil and in the water, the resistance between the two water level probes 8 is different, the corresponding circuit board 18 enables the water level signal output interface 10 to output high level or low level outwards, and when the two water level probes 8 and the circuit board 18 are used, the vehicle-mounted ECU7 obtains whether the water level of the water collecting cup of the filter submerges the probes or not according to the high level or low level signals, and the water level detection function is realized.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (5)
1. The utility model provides a fuel heating device of integrated water level detection function, includes insulating casing, its characterized in that: one side of the insulating shell, which is matched with the fuel filter, is connected with a heating sheet, and the heating sheet is used for extending into the fuel filter to heat fuel; the insulating shell is connected with a water level detection assembly, the insulating shell is provided with a leading-out port, a temperature controller is arranged in the insulating shell, and the temperature controller is connected with the heating sheet; the temperature controller and the external circuit of the water level detection component are integrated together and are led out from the leading-out port.
2. The fuel heating apparatus integrated with water level detection function as claimed in claim 1, wherein: the water level detection assembly comprises a water level probe, a resistance module and a water level signal output interface, the water level probe and the resistance module are connected in parallel through a lead to form a detection device, the detection device is connected with the water level signal output interface, and a connecting circuit of the water level signal output interface is used as an external connecting circuit of the water level detection assembly; the resistance module is arranged in the insulating shell and is isolated from the inner space of the water collecting cup of the fuel filter, and the water level probe is used for extending into the water collecting cup of the fuel filter.
3. The fuel heating apparatus with integrated water level detection function as set forth in claim 1, wherein: the water level detection assembly comprises a water level signal output interface and a hollow insulating column connected to the insulating shell, a reed pipe is arranged in the hollow insulating column, two iron-containing metal sheets are arranged in the reed pipe, and the two metal sheets are positioned at the axis of the hollow insulating column; a floater is sleeved outside the hollow insulating column in a sliding manner, a magnetic block for connecting two metal sheets in the dry spring tube is embedded in the floater, and the integral density of the floater is greater than that of diesel oil and less than that of water; the two metal sheets are respectively connected with the water level signal output interface through leads;
the top of the hollow insulating column is provided with a baffle ring for preventing the floater from floating upwards and separating from the hollow insulating column;
the magnetic block is far away from the two metal sheets when the floater does not float upwards; after the floater floats upwards, the magnetic block is close to the two metal sheets under the state that the magnetic block is blocked by the blocking piece, and the two metal sheets are magnetized by the magnetic field to be communicated;
and a connecting circuit of the water level signal output interface is used as an external connecting circuit of the water level detection assembly.
4. A fuel heating apparatus integrated with water level detection function as set forth in claim 3, characterized in that: the magnetic blocks are annular around the hollow insulating column or are distributed more than two in a centrosymmetric way around the axis of the hollow insulating column.
5. The fuel heating apparatus with integrated water level detection function as set forth in claim 1, wherein: the water level detection assembly comprises a circuit board, an electrical interface and at least two water level probes;
the lower parts of the two water level probes extend into the insulating shell and are connected with the circuit board in a welding and conductive mode; the upper parts of the two water level probes extend out of the insulating shell and are used for detecting the water level; the circuit board is provided with an operational amplifier, a resistor, a capacitor and a triode or an MOS tube;
the electric interface comprises a power supply interface and a water level signal output interface; when the water level probe is positioned in the diesel oil, the connecting line of the water level signal output interface outputs a high level or a low level; the power interface is connected with a power circuit, and the power circuit and an external circuit of the temperature controller and an external circuit of the water level detection assembly are integrated together to be a part of an integrated wiring harness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222084277.XU CN217783656U (en) | 2022-08-09 | 2022-08-09 | Fuel oil heating device integrating water level detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222084277.XU CN217783656U (en) | 2022-08-09 | 2022-08-09 | Fuel oil heating device integrating water level detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217783656U true CN217783656U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222084277.XU Active CN217783656U (en) | 2022-08-09 | 2022-08-09 | Fuel oil heating device integrating water level detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217783656U (en) |
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2022
- 2022-08-09 CN CN202222084277.XU patent/CN217783656U/en active Active
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