Integrated metering valve

Abstract

The utility model relates to an integrated metering valve, which comprises a metering valve body (1) and a plug wire (4) with a plug connector (3), and is characterized in that a connecting pin (2) of the metering valve body (1) is connected with a connecting wire (4.1) of the plug wire (4) and then is wrapped in a protective jacket (5) of the metering valve body (1), and the protective jacket (5) wraps a part of an insulating sleeve (4.2) of the plug connector (3). According to the integrated metering valve, through the integrated structure, the plug wire and the metering valve form a complete whole, so that the conditions of abrasion and the like between a plug wire cable and a connecting contact pin are avoided, the contact quality is ensured, and the electric connection reliability of the metering valve is improved.

Description

Technical Field

[0001] The utility model relates to a metering valve with an integrated structure, belonging to the technical field of valves. Background Art

[0002] At present, during the assembly and application of the fuel / gas metering valve for vehicles, a plug-in cable is required to connect the metering valve and the ECU, that is, the plug connector at one end of the plug-in cable is connected to the vehicle ECU, and the wiring terminal at the other end is plugged in with the wiring terminal of the metering valve to achieve electrical connection with the connecting pin in the metering valve (such as Figure 3 As shown). However, in actual applications, according to customer feedback, the plug-in matching method of the terminal with the connecting pin often causes poor contact due to processing errors and assembly errors, affecting the control and response of the ECU to the metering valve. At the same time, during the use of the vehicle, especially the vibration of the engineering vehicle during the use, the plug-in matching part between the connecting pin and the terminal will be worn due to frequent relative displacement, thereby exacerbating the poor contact. Therefore, a metering valve structure that can solve the above problems is urgently needed. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide an integrated metering valve. Through the integrated overall structure, the plug-in wire and the metering valve form a complete whole, thereby avoiding wear and tear between the plug-in wire cable and the connecting pin, thereby ensuring the contact quality and improving the electrical connection reliability of the metering valve.

[0004] The purpose of the utility model is achieved in this way:

[0005] Implementation method 1:

[0006] An integrated metering valve comprises a metering valve body and a plug wire with a plug connector. The connecting pin of the metering valve body is connected to the connecting wire of the plug wire and then wrapped in a protective sheath of the metering valve body, and the protective sheath wraps a part of the insulating sleeve of the plug connector.

[0007] Preferably, the protective jacket is integrally formed by injection molding.

[0008] Preferably, the connecting pin of the metering valve body is overlapped with the connecting wire of the plug wire and then connected by electric welding.

[0009] Preferably, the protective jacket is also the injection-molded housing of the coil assembly of the metering valve body.

[0010] Implementation method 2:

[0011] An integrated metering valve comprises a metering valve body and a plug wire with a plug connector, characterized in that the lead-out end of the coil wire of the metering valve body is connected to the connecting wire of the plug wire and then wrapped in a protective sheath of the metering valve body, and the protective sheath wraps around part of the insulating sleeve of the plug connector.

[0012] Preferably, the lead-out end of the coil conductor is connected to the connecting wire of the plug wire by welding or hinged connection.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model forms an integrated structure of the plug-in wire and the metering valve body, thereby avoiding the risk of poor contact due to plug-in connection, reducing the cost of parts, simplifying the process steps, and being conducive to reducing the overall manufacturing cost and improving the market competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the integrated metering valve of the utility model.

[0016] Figure 2 It is a partial cross-sectional view of the connecting pin and connecting wire of the integrated metering valve of the utility model.

[0017] Figure 3 It is a schematic diagram of the local structure at the connection terminal of a conventional metering valve.

[0018] in:

[0019] Metering valve body 1, connecting pin 2, plug connector 3, plug wire 4, protective jacket 5;

[0020] Connecting wire 4.1, insulating sleeve 4.2. DETAILED DESCRIPTION Embodiment 1:

[0021] See also Figure 1 and Figure 2 The utility model relates to an integrated metering valve, comprising a metering valve body 1, the metering valve body 1 is connected to a plug wire 4, and the end of the plug wire 4 is connected to a plug connector 3, and is electrically connected to a vehicle-mounted ECU through the plug connector 3;

[0022] Specifically, the connecting pin 2 of the metering valve body 1 is connected to the connecting wire 4.1 of the plug wire 4 by resistance welding, and then the protective jacket 5 formed by injection molding wraps the connecting portion between the connecting pin 2 and the connecting wire 4.1 therein, and the protective jacket 5 also wraps the insulating sleeve 4.2 of the plug connector 3, thereby forming an integral body, which is not only conducive to improving the overall strength, but also improves the electrical performance (compared with the conventional plug-in method, it has excellent waterproof and dustproof properties).

[0023] Compared with the conventional plug-in method, the conventional injection-molded protective cover 5 only covers the coil assembly constituting the metering valve body 1, and the concave terminal formed in the protective cover 5 is used for the connecting pin 2 to extend (such as Figure 3 As shown); then the connection pin is connected to the patch cord 4 by plugging (additional wiring terminals are required on the patch cord 4 to match the plugging). In this embodiment, the wiring terminals are directly eliminated, and the cable of the patch cord 4 is directly welded to the connection pin 2. When the protective jacket 5 is formed by injection molding, the connection part between the connection pin 2 and the connection wire 4.1 is directly wrapped therein to form the protective jacket 5 as a whole, thereby saving costs (no wiring terminals are required to be installed on the patch cord 4, and no wiring terminals are required to be constructed during the formation of the protective jacket 5, thereby simplifying the process), and the integrated overall structure prevents the connection pin 2 and the connection wire 4.1 from being worn due to vibration during the use of the vehicle, thereby ensuring the reliability of the connection. Embodiment 2:

[0024] Compared with the first embodiment, the improvement of the second embodiment is that the coil assembly of the metering valve body 1 no longer leads out the connecting pin 2, and directly leads out the coil wire. After the lead-out head of the coil wire is connected to the connecting wire 4.1 of the plug wire 4 (welded or hinged), a protective jacket 5 is formed by injection molding in the same way as in the first embodiment, and the protective jacket 5 wraps the connecting wire 4.1 and the lead-out head of the coil wire.

[0025] In addition: It should be noted that the above specific implementation is only an optimization scheme of this patent. Any changes or improvements made by technicians in this field based on the above concept are within the scope of protection of this patent.

Claims

1. An integrated metering valve, comprising a metering valve body (1) and a plug cable (4) with a plug connector (3), characterized in that: After the connecting pin (2) of the metering valve body (1) is connected to the connecting wire (4.1) of the plug wire (4), it is wrapped in the protective jacket (5) of the metering valve body (1), and the protective jacket (5) wraps around part of the insulating sleeve (4.2) of the plug connector (3).

2. The integrated metering valve according to claim 1, characterized in that: The protective jacket (5) is integrally formed by injection molding.

3. An integrated metering valve according to claim 1 or 2, characterized in that: The connecting pin (2) of the metering valve body (1) and the connecting wire (4.1) of the plug wire (4) are overlapped and then connected by electric welding.

4. The integrated metering valve according to claim 2, characterized in that: The protective jacket (5) is also an injection-molded housing of the coil assembly of the metering valve body (1).

5. An integrated metering valve, comprising a metering valve body (1) and a plug cable (4) with a plug connector (3), characterized in that: The lead-out end of the coil wire of the metering valve body (1) is connected to the connecting wire (4.1) of the plug wire (4) and then wrapped in a protective jacket (5) of the metering valve body (1), and the protective jacket (5) wraps around a portion of the insulating jacket (4.2) of the plug connector (3).

6. The integrated metering valve according to claim 5, characterized in that: The lead-out end of the coil conductor is connected to the connecting wire (4.1) of the plug wire (4) by welding or hinged connection.

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