CN214954018U - Crankshaft breather pipe pipeline on-off detection system - Google Patents
Crankshaft breather pipe pipeline on-off detection system Download PDFInfo
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- CN214954018U CN214954018U CN202120916950.4U CN202120916950U CN214954018U CN 214954018 U CN214954018 U CN 214954018U CN 202120916950 U CN202120916950 U CN 202120916950U CN 214954018 U CN214954018 U CN 214954018U
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Abstract
The utility model relates to the technical field of automobile pipeline detection, and discloses a crankshaft vent pipe pipeline on-off detection system, which comprises a main pipeline and an off detection line, wherein connecting terminals are arranged at both ends of the main pipeline, the connecting terminals can be detachably connected with second connecting terminals, a resistance unit is arranged in the second connecting terminals or the connecting terminals, and a conductive switch is arranged inside the connecting terminals or at the joint of the second connecting terminals and the connecting terminals; the disconnection detection circuit comprises a main circuit and branch circuits, wherein the main circuit comprises an ECU (electronic control unit) and a connecting circuit, two ends of the connecting circuit are respectively connected with a power supply end of the ECU and a grounding end of the ECU, the connecting circuit comprises a first resistor unit and a second resistor unit which are connected in series, the two branch circuits are respectively connected in parallel at two ends of the first resistor unit and the second resistor unit, and each branch circuit comprises a resistor unit and a corresponding conductive switch. This crankshaft breather pipe pipeline break-make detecting system can avoid causing the erroneous judgement.
Description
Technical Field
The utility model relates to an automobile pipeline detects technical field, especially relates to a bent axle breather pipe pipeline break-make detecting system.
Background
At present, a closed crankcase ventilation system is mostly adopted for an engine, mainly to avoid that fuel oil components are volatilized into air to cause that evaporative emission of a whole vehicle exceeds standard, and to inhibit pressure rise in the crankcase, gas in the crankcase needs to be intermittently pumped out.
Vibration, high and low temperature changes during the operation of the engine, material durability problems caused by long-term use, and vehicle maintenance influence the integrity of a crankcase ventilation pipeline (such as pipe disconnection, joint disconnection and joint extraction).
The crankcase ventilation pipeline comprises a multi-section structure, such as a main pipeline, joints at two ends, or other connecting structures, and whether the main pipeline is disconnected or not and whether the joints at the two ends are pulled out or fall off or not need to be judged in online diagnosis. The detection circuit of the existing detection system is a series circuit, and if a connecting wire is disconnected, but a connector is not disconnected, the detection system cannot detect the connecting wire, so that the detection system can make erroneous judgment, and the detection accuracy is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bent axle breather pipe pipeline break-make detecting system, the detection circuitry who has solved current detecting system is series circuit, leads to the technical problem of erroneous judgement easily.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a crankshaft breather pipe pipeline break-make detection system, including main line and disconnection detection circuitry, the both ends of main line all are provided with first connecting terminal, first connecting terminal can be dismantled with the second connecting terminal and be connected, be provided with resistance unit in the second connecting terminal or the first connecting terminal, the first connecting terminal inside or the second connecting terminal with the junction of first connecting terminal is provided with conductive switch; the disconnection detection circuit includes:
the main circuit comprises an ECU and a connecting circuit, wherein two ends of the connecting circuit are respectively connected with a power supply end of the ECU and a grounding end of the ECU, and the connecting circuit comprises a first resistor unit and a second resistor unit which are connected in series; and
the branch road, two the branch road is parallelly connected respectively in first resistance unit with the both ends of second resistance unit, each the branch road all includes resistance unit and the electrically conductive switch that corresponds, first connecting terminal and corresponding second connecting terminal links to each other, so that correspond electrically conductive switch switches on, in order to correspond the branch road with the major loop switches on mutually.
This crankshaft breather pipe pipeline break-make detecting system respectively connects a branch road in parallel through the both ends at the first resistance unit of major loop and second resistance unit respectively, each branch road all includes resistance unit and conductive switch, it links to each other with the second connecting terminal that corresponds to work as first connecting terminal, so that the conductive switch that corresponds switches on, so as to switch on corresponding branch road and major loop mutually, can detect the interconnecting link disconnection of major loop through this crankshaft breather pipe pipeline break-make detecting system, the condition of arbitrary second connecting terminal disconnection and both ends second connecting terminal disconnection, improve the degree of accuracy that detects, avoid causing the erroneous judgement.
As a preferable scheme of the crankshaft vent pipe pipeline on-off detection system, an upper resistor is arranged between a power supply end of the ECU and the connecting circuit.
An upper resistor is arranged between a power supply end of the ECU and the connecting circuit to play a role in voltage division.
As a preferable scheme of the crankshaft vent pipe pipeline on-off detection system, the resistance values of the resistance units on the two branches are equal.
The resistance values of the resistance units on the two branches are equal, and the design is simple, so that the preparation of the two branches is facilitated.
As a preferable scheme of the crankshaft vent pipe pipeline on-off detection system, the resistances of the resistor units on the two branches are unequal.
The resistance values of the resistance units on the two branches are unequal, so that the disconnection of the second connecting terminal at which end of the main pipeline is detected.
As a preferable solution of the above crankshaft vent pipe on-off detection system, the resistor unit on the branch comprises a single or multiple resistors.
The resistance units on the branches comprise single or multiple resistors and can be set according to requirements so as to be suitable for different scenes.
As a preferable scheme of the above crankshaft vent pipe pipeline on-off detection system, when the resistance unit on the branch comprises a plurality of resistances, the plurality of resistances are connected in series, in parallel, or in series-parallel.
When the resistance unit on the branch circuit comprises a plurality of resistances, the plurality of resistances can be connected in series or in parallel to be suitable for different scenes.
As a preferable mode of the above crankshaft vent pipe on-off detection system, the first resistance unit and the second resistance unit include a single or multiple resistances.
The first resistance unit and the second resistance unit comprise single or multiple resistances, and can be flexibly arranged.
As a preferable scheme of the above crankshaft vent pipe pipeline on-off detection system, a conductive switch is arranged on the first connection terminal, the resistance unit is arranged in the second connection terminal, the second connection terminal is connected with the first connection terminal in an inserting manner, and when the second connection terminal is connected in the first connection terminal in an inserting manner, the conductive switch is triggered to be switched on.
Through set up conductive switch on first connecting terminal, set up the resistance unit on the second connecting terminal to when first connecting terminal and second connecting terminal peg graft and link to each other, can trigger conductive switch and switch on.
As a preferable scheme of the above crankshaft vent pipe pipeline on-off detection system, circuit plugs are arranged on positive and negative electrodes of the conductive switch, a conductive structure is arranged in the second connecting terminal, the second connecting terminal is connected with the first connecting terminal in an inserting manner, and the conductive structure is conducted with the positive and negative electrodes of the conductive switch.
Be provided with the circuit plug on conductive switch's the positive and negative electrode, be provided with conductive structure in the second connecting terminal, peg graft through second connecting terminal and first connecting terminal and link to each other to make conductive structure and conductive switch's positive and negative electrode switch on mutually, convenient operation realizes switching on of first connecting terminal and second connecting terminal easily.
As a preferable scheme of the above crankshaft vent pipe on-off detection system, the connection line is attached to the surface of the main pipe, and an insulating protection layer covers the connection line;
alternatively, the connection line is buried in the main line and led out at an end portion.
The connecting line is attached to the surface of the main pipeline, so that the preparation is convenient, and an insulating protective layer is covered outside the connecting line to protect and insulate the main pipeline; the connecting line is buried in the main pipe and led out at the end, the connecting line can be well protected by the arrangement, and the connecting line is led out from the end of the main pipe so as to be connected with a power supply end of the ECU and a grounding end of the ECU.
The utility model has the advantages that:
the utility model provides a bent axle breather pipe pipeline break-make detecting system, respectively connect a branch road in parallel through the both ends at the first resistance unit of major loop and second resistance unit respectively, each branch road all includes resistance unit and conductive switch, it links to each other with the second connecting terminal that corresponds to work as first connecting terminal, so that the conductive switch that corresponds switches on, so as to switch on corresponding branch road and major loop mutually, with the interconnecting link disconnection that can detect the major loop through this bent axle breather pipe pipeline break-make detecting system, the condition of arbitrary second connecting terminal disconnection and both ends second connecting terminal disconnection, improve the degree of accuracy that detects, avoid causing the erroneous judgement.
Drawings
Fig. 1 is a schematic structural view of a crankshaft vent pipe pipeline on-off detection system provided by the present invention;
fig. 2 is a schematic diagram of the crankshaft vent pipe pipeline on-off detection system provided by the utility model.
In the figure:
1. a main pipeline; 3. a first connection terminal; 4. a second connection terminal; 5. a resistance unit; 6. an ECU; 7. a first resistance unit; 8. a second resistance unit; 9. an upper resistor;
21. a main loop; 22. and (4) branching.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1 and fig. 2, the present embodiment provides a system for detecting on/off of a crankshaft vent pipe pipeline, including a main pipeline 1 and a disconnection detection pipeline, wherein both ends of the main pipeline 1 are provided with first connection terminals 3, the first connection terminals 3 can be detachably connected to second connection terminals 4, a resistance unit 5 is arranged in the second connection terminals 4 or the first connection terminals 3, and a conductive switch is arranged inside the first connection terminals 3 or at a junction between the second connection terminals 4 and the first connection terminals 3; the disconnection detection circuit includes a main circuit 21 and branches 22, the main circuit 21 includes an ECU6 and a connection line, both ends of the connection line are connected to a power supply terminal of the ECU6 and a ground terminal of the ECU6, respectively, the connection line includes a first resistance unit 7 and a second resistance unit 8 connected in series, the two branches 22 are connected in parallel to both ends of the first resistance unit 7 and the second resistance unit 8, respectively, each branch 22 includes a resistance unit 5 and a corresponding conductive switch, the first connection terminal 3 is connected to the corresponding second connection terminal 4, so that the corresponding conducting switch is conducted, to conduct the corresponding branch 22 with the main loop 21, the crankshaft vent pipe pipeline on-off detection system can detect the conditions of disconnection of a connecting circuit of the main loop 21, disconnection of any second connecting terminal 4 and disconnection of the second connecting terminals 4 at two ends, improves the detection accuracy and avoids causing misjudgment. In one embodiment, the branch 22 connected in parallel to two ends of the first resistance unit 7 is a first branch, and the branch 22 connected in parallel to two ends of the second resistance unit 8 is a second branch.
Optionally, an upper resistor 9 is disposed between the power supply terminal of the ECU6 and the connection line, and the upper resistor 9, the first resistor unit 7 and the second resistor unit 8 are connected in series, so as to perform a voltage division function at the same time, thereby avoiding the short circuit of the two branches 22 and damaging the power supply terminal of the ECU 6.
In one embodiment, the resistance values of the resistor units 5 on the two branches 22 are equal, and the design is simple, so as to facilitate the preparation of the two branches 22. In other embodiments, the resistance values of the resistance units 5 on the two branches 22 are not equal in order to detect which end of the main line 1 the second connection terminal 4 is disconnected. In this embodiment, the resistance values of the resistance units 5 on the two branches 22 are set to be equal.
The resistance unit 5 on the branch 22 comprises a single or multiple resistances. The resistor unit 5 on the branch 22 comprises a single or multiple resistors, which can be set according to requirements to adapt to different scenes. When the resistance unit 5 on the branch 22 includes a plurality of resistances, the plurality of resistances are connected in series, in parallel, or in series-parallel to be suitable for different scenarios. In this embodiment, for the simplicity of the branch 22, a single resistor is disposed on each of the first branch and the second branch, and the resistances of the resistors on the first branch and the second branch are equal.
Alternatively, the first resistance unit 7 includes a single or a plurality of resistances, and when the first resistance unit 7 includes a plurality of resistances, the plurality of resistances are connected in series, in parallel, or in series-parallel. The second resistance unit 8 includes a single or a plurality of resistances, and when the second resistance unit 8 includes a plurality of resistances, the plurality of resistances are connected in series, in parallel, or in series-parallel, so as to be adjusted according to actual requirements. In this embodiment, in order to simplify the circuit, the first resistance unit 7 and the second resistance unit 8 each include a single resistance, and the resistances of the first resistance unit 7 and the second resistance unit 8 are equal.
Optionally, a conductive switch is disposed on the first connection terminal 3, a resistance unit 5 is disposed in the second connection terminal 4, the second connection terminal 4 is connected to the first connection terminal 3 in an inserting manner, and when the second connection terminal 4 is connected to the first connection terminal 3 in an inserting manner, the conductive switch is triggered to be turned on.
Specifically, be provided with the circuit plug on conductive switch's the positive and negative electrode, be provided with conductive structure in the second connecting terminal 4, second connecting terminal 4 pegs graft with first connecting terminal 3 and links to each other, and conductive structure switches on with conductive switch's positive and negative electrode mutually, and convenient operation realizes switching on of first connecting terminal 3 and second connecting terminal 4 easily.
In one embodiment, the connection circuit is attached to the surface of the main pipeline 1, and an insulating protection layer is covered outside the connection circuit to protect and insulate the main pipeline 1; in other embodiments, the connection line is embedded in main conduit 1 and led out at the end so as to be connected to the power supply terminal of ECU6 and the ground terminal of ECU 6.
In this embodiment, the resistance of the upper resistor 9 is 100K Ω ± 5%, the voltage of the power source terminal of the ECU6 is 5V, the resistances of the first resistor unit 7 and the second resistor unit 8 are both 1M Ω, and the resistances of the resistor unit 5 in the first branch 22 and the resistors 5 in the second branch 22 are both 4.99K Ω.
When the connection line of the main circuit 21 is broken, the ECU6 receives a voltage signal of 5V; when the second connection terminal 4 is normally connected, the ECU6 receives a low voltage signal of 0.45V, when any one end of the two ends of the vent pipe is disconnected, the ECU6 receives a high voltage signal of 4.5V, when the two ends are disconnected, the ECU6 receives a high voltage signal of 4.76V, and the ECU6 can judge whether the second connection terminal 4 is disconnected according to the received high and low voltage signals, so that the states of the main circuit 21 and the second connection terminal 4 are judged according to the magnitude of the voltage signal received by the ECU6, erroneous judgment is not caused, and the detection accuracy is improved.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The system for detecting the on-off of the crankshaft vent pipe pipeline is characterized by comprising a main pipeline (1) and a disconnection detection circuit, wherein first connecting terminals (3) are arranged at two ends of the main pipeline (1), the first connecting terminals (3) can be detachably connected with second connecting terminals (4), resistance units (5) are arranged in the second connecting terminals (4) or the first connecting terminals (3), and conductive switches are arranged in the first connecting terminals (3) or at the joint of the second connecting terminals (4) and the first connecting terminals (3); the disconnection detection circuit includes:
the main circuit (21) comprises an ECU (6) and a connecting circuit, wherein two ends of the connecting circuit are respectively connected with a power supply end of the ECU (6) and a grounding end of the ECU (6), and the connecting circuit comprises a first resistor unit (7) and a second resistor unit (8) which are connected in series; and
branch road (22), two branch road (22) are parallelly connected respectively in first resistance unit (7) with the both ends of second resistance unit (8), each branch road (22) all include resistance unit (5) and the electrically conductive switch that corresponds, first connecting terminal (3) and corresponding second connecting terminal (4) link to each other to make correspond electrically conductive switch switches on, with corresponding branch road (22) with major loop (21) switch on mutually.
2. The system according to claim 1, wherein an upper resistor (9) is provided between the power supply terminal of the ECU (6) and the connection line.
3. The system according to claim 1, wherein the resistance units (5) on both branches (22) are equal in resistance.
4. The system according to claim 1, wherein the resistances of the resistor units (5) on the two branches (22) are not equal.
5. The crankshaft snorkel duct on-off detection system as claimed in claim 1, wherein the resistance unit (5) on the branch (22) comprises a single or multiple resistances.
6. The system according to claim 5, wherein the resistor unit (5) of the branch (22) comprises a plurality of resistors, and the plurality of resistors are connected in series, in parallel or in series-parallel.
7. The crankshaft snorkel duct on-off detection system as claimed in claim 1, wherein the first resistance unit (7) and the second resistance unit (8) comprise a single or multiple resistances.
8. A crankshaft ventilation pipe line on-off detection system according to any one of claims 1-7, characterized in that a conductive switch is arranged on the first connection terminal (3), the resistance unit (5) is arranged in the second connection terminal (4), the second connection terminal (4) is connected with the first connection terminal (3) in a plugging manner, and when the second connection terminal (4) is plugged in the first connection terminal (3), the conductive switch is triggered to be conducted.
9. The system according to claim 8, wherein the conductive switch has a circuit plug disposed on the positive and negative electrodes, and the second connection terminal (4) has a conductive structure disposed therein, the conductive structure being in communication with the positive and negative electrodes of the conductive switch.
10. A crankshaft breather pipe line on-off detection system according to any of claims 1-7, characterized in that the connection line is attached to the surface of the main pipe (1), and is covered with an insulating protective layer on the outside;
or the connecting line is buried in the main pipeline (1) and is led out at the end part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120916950.4U CN214954018U (en) | 2021-04-29 | 2021-04-29 | Crankshaft breather pipe pipeline on-off detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120916950.4U CN214954018U (en) | 2021-04-29 | 2021-04-29 | Crankshaft breather pipe pipeline on-off detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214954018U true CN214954018U (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120916950.4U Active CN214954018U (en) | 2021-04-29 | 2021-04-29 | Crankshaft breather pipe pipeline on-off detection system |
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| Country | Link |
|---|---|
| CN (1) | CN214954018U (en) |
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2021
- 2021-04-29 CN CN202120916950.4U patent/CN214954018U/en active Active
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Address after: Room 101, No. 1, East Ring 3rd Street, Jitiagang, Huangjiang Town, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Zhengyang Sensor Technology Co.,Ltd. Address before: 523757 jitigang village, Huangjiang Town, Dongguan City, Guangdong Province (No. 1, Donghuan Third Street) Patentee before: DONGGUAN ZHENGYANG ELECTRONIC MECHANICAL Co.,Ltd. |
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