Connector and monitoring system of electronic fuel injection engine

Abstract

The utility model relates to the technical field of electronic fuel injection engines, in particular to a connector and a monitoring system of an electronic fuel injection engine, which comprise a connector body, one end of the connector body is provided with a male connector, the other end of the connector body is provided with a female connector, the female connector is provided with a plurality of first slots, and pins corresponding to the first slots are arranged in the male connector. A plurality of leading-out pins are arranged in the middle of the connector body and are electrically connected with the pins; the connector provided by the utility model can be directly connected between a gasoline electronic fuel injection engine mainboard interface and a gasoline electronic fuel injection engine mainboard plug-in connector, and then at least one lead-out pin is arranged on the connector and is electrically connected with a corresponding pin. Therefore, the display unit can collect relevant parameters of the gasoline electronic fuel injection engine through at least one lead-out pin.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic fuel injection engines, in particular to a connector and a monitoring system for electronic fuel injection engines. Background Art

[0002] A gasoline electronic fuel injection (GEFI) engine is an internal combustion engine that uses an electronic control unit (ECU) to manage fuel injection to optimize engine performance and fuel efficiency. A GFI engine primarily consists of a fuel system, an intake system, an ECU, sensors, and an ignition system. Due to its high efficiency, environmental friendliness, and reliability, GFI engines have become a primary power source for modern vehicles.

[0003] Gasoline electronic fuel injection engines can also be used in small power generation scenarios, for example: using gasoline electronic fuel injection engines as backup power sources.

[0004] When a gasoline electronic fuel injection engine is in operation, it is necessary to monitor and diagnose the gasoline electronic fuel injection engine to ensure its performance. Currently, the monitoring and diagnosis of the gasoline electronic fuel injection engine is performed by obtaining relevant data through the OBD (On-Board Diagnostics) interface on the vehicle.

[0005] However, when gasoline electronic fuel injection engines are used in small power generation scenarios, there is a lack of an on-board automatic diagnostic system, and the gasoline electronic fuel injection engines cannot be monitored in this scenario. The cost of building an OBD alone is relatively high, which is not conducive to the application and promotion of gasoline electronic fuel injection engines in small power generation scenarios. Utility Model Content

[0006] The purpose of the utility model is to solve the above-mentioned deficiencies and provide a connector and a monitoring system for an electronic fuel injection engine.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A connector includes a connector body, one end of the connector body is provided with a male connector, the other end of the connector body is provided with a female connector, the female connector is provided with a plurality of first slots, the male connector is provided with pins corresponding to the first slots, and the middle part of the connector body is provided with a plurality of lead pins, which are electrically connected to the pins.

[0009] Furthermore, the number of the lead pins is four, and the pins connected to the four lead pins are respectively power supply, ground wire, CAN data bus low and CAN data bus high.

[0010] Furthermore, the four lead pins are all arranged on one side of the connector body, a second slot is provided on one side of the connector body, and one end of the four lead pins are all located in the second slot.

[0011] Furthermore, an anti-fool-proof structure is provided on the inner side wall of the second slot, and the anti-fool-proof structure is an anti-fool-proof convex strip provided on one side of the connector body and an anti-fool-proof groove provided on the other side of the connector body.

[0012] Furthermore, at least one limiting protrusion is provided on the edge of the male connector, and a limiting groove matching the limiting protrusion is provided on the inner wall of the edge of the female connector.

[0013] A monitoring system for an electronic fuel injection engine, characterized by comprising:

[0014] The aforementioned connector;

[0015] Gasoline electronic fuel injection engine mainboard interface and gasoline electronic fuel injection engine mainboard connector; the connector is connected in series between the gasoline electronic fuel injection engine mainboard interface and the gasoline electronic fuel injection engine mainboard connector;

[0016] The display unit, the lead pins on the connector are electrically connected to the display unit.

[0017] Furthermore, the display unit includes a processor and a display screen, the lead pins on the connector are electrically connected to the IO port of the processor, and the data port of the display screen is electrically connected to the IO port of the processor.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The connector of the utility model can be directly connected between the gasoline electronic fuel injection engine mainboard interface and the gasoline electronic fuel injection engine mainboard connector, and then at least one lead pin is arranged on the connector, and at least one lead pin is electrically connected to the corresponding pin. Therefore, the display unit can collect relevant parameters of the gasoline electronic fuel injection engine through at least one lead pin to realize the monitoring of the gasoline electronic fuel injection engine. The connector has the advantages of simple structure, strong practicality and convenient assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of a male connector of a connector provided in one embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of a female connector of a connector provided in one embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional schematic diagram of a connector body of a connector provided by one embodiment of the present invention;

[0024] Figure 4 This is a cross-sectional schematic diagram of a connector body of a connector provided by another embodiment of the present invention;

[0025] Figure 5 This is a top view of a connector provided in another embodiment of the present invention;

[0026] Figure 6 This is a block diagram of a monitoring system for an electronic fuel injection engine provided by one embodiment of the present utility model.

[0027] In the figure: 1. Connector body; 2. Male connector; 3. Female connector; 4. Pin; 5. First slot; 6. Lead pin; 7. Second slot; 8. Limiting protrusion; 9. Limiting groove. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0030] Example 1

[0031] Figure 1 This is a schematic diagram of a male connector 2 of a connector provided in one embodiment of the present invention. Figure 1 As shown, this embodiment provides a connector, which includes: a connector body 1, a male connector 2 is provided at one end of the connector body 1, a female connector 3 is provided at the other end of the connector body 1, a plurality of first slots 5 are provided on the female connector 3, a plurality of pins 4 are provided in the male connector 2, and the number and position of the plurality of pins 4 correspond to the number and position of the plurality of first slots 5, and one end of each pin 4 passes through the connector body 1 and extends into the corresponding first slot 5, as shown in FIG. Figure 2 As shown;

[0032] At least one lead pin 6 is provided in the middle of the connector body 1 , and the at least one lead pin 6 is electrically connected to the corresponding pin 4 .

[0033] In this embodiment, the connector can be directly connected between the gasoline electronic fuel injection engine mainboard interface and the gasoline electronic fuel injection engine mainboard connector, and then at least one lead pin 6 is arranged on the connector, and at least one lead pin 6 is electrically connected to the corresponding pin 4, so the relevant data transmitted between the gasoline electronic fuel injection engine mainboard interface and the gasoline electronic fuel injection engine mainboard connector can be obtained from at least one lead pin 6. The connector has the advantages of simple structure, strong practicality and easy assembly.

[0034] In this embodiment, the number of pins 4 in the male connector 2 is 52 in total. Figure 1 As shown, there are four rows of pins 4, which are the first row, the second row, the third row and the fourth row from bottom to top. The pins 4 in the first row are numbered 1 to 14 from left to right, the pins 4 in the second row are numbered 15 to 26 from left to right, the pins 4 in the third row are numbered 27 to 40 from left to right, and the pins 4 in the fourth row are numbered 41 to 52 from left to right.

[0035] Among them, pin 4 of serial number 1 and 3 is +12V power line, pin 4 of serial number 2, 14 and 42 are all grounding wires (used to indicate grounding), pin 4 of serial number 4 is oil pump relay signal line, pin 4 of serial number 6 is engine speed signal line, pin 4 of serial number 8 is air conditioning pump relay signal line, pin 4 of serial number 10 is fan controller signal line, pin 4 of serial number 11 is air flow meter power line, pin 4 of serial number 12 is air flow meter grounding wire. Iron wire, pin 4 with serial number 13 is the air flow meter signal line, pin 4 with serial number 15 is the charcoal canister solenoid valve signal line, pin 4 with serial number 19 is the data diagnostic line, pin 4 with serial number 25 is the front oxygen sensor circuit, pin 4 with serial number 26 is the front oxygen sensor signal line, pin 4 with serial number 27 is the front oxygen sensor heating signal line, pin 4 with serial number 41 is the CAN data bus low signal line, and pin 4 with serial number 42 is the CAN data bus high signal line.

[0036] In this embodiment, the number of lead-out pins 6 is four, and the pins 4 connected to the four lead-out pins 6 are respectively the power supply (i.e., the +12V power line numbered 1), the grounding line (i.e., the grounding line numbered 2), the CAN data bus low (i.e., the CAN data bus low signal line numbered 41) and the CAN data bus high (i.e., the CAN data bus high signal line numbered 42).

[0037] In this embodiment, the four lead pins 6 can be set on the side closest to the pin 4, which makes it easier to route the lead pins 6. Figure 3 shown.

[0038] In this embodiment, in order to facilitate the connection of the four lead pins 6, the four lead pins 6 can also be set on one side of the connector body 1, such as Figure 4 and Figure 5 As shown, a second slot 7 is provided on one side of the connector body 1, and one end of the four lead pins 6 are all located in the second slot 7; at the same time, in order to prevent the four lead pins 6 from being connected incorrectly, an anti-fool structure is provided on the inner wall of the second slot 7. The anti-fool structure can be a protrusion on the inner wall and can be connected using a 4-pin interface commonly used in this field.

[0039] As a further optimization of this embodiment, at least one limiting protrusion 8 is provided on the edge of the male connector 2. Figure 5 As shown, at least one limiting groove 9 is provided on the inner wall of the edge of the female connector 3; in this embodiment, it is assumed that the female connector 3 of the connector is connected to the gasoline electronic fuel injection engine mainboard interface (male interface), and the gasoline electronic fuel injection engine mainboard interface has a protrusion corresponding to the limiting groove 9. Therefore, only after the protrusion on the gasoline electronic fuel injection engine mainboard interface is aligned with the limiting groove 9, the female connector 3 of the connector can be inserted into the gasoline electronic fuel injection engine mainboard interface; similarly, only after the limiting protrusion 8 on the male connector 2 is aligned with the groove on the gasoline electronic fuel injection engine mainboard connector, the male connector 2 of the connector can be inserted into the gasoline electronic fuel injection engine mainboard connector, which can prevent the pins 4 of the connector from being damaged.

[0040] In this embodiment, the connector body 1 has a trapezoidal structure, which can also prevent errors from occurring between the connector and the gasoline electronic fuel injection engine mainboard interface and the gasoline electronic fuel injection engine mainboard connector.

[0041] Example 2

[0042] Figure 6 This is a block diagram of a monitoring system for an electronic fuel injection engine provided by one embodiment of the present invention. Figure 6 As shown, this embodiment provides a monitoring system for an electronic fuel injection engine, the system comprising: the connector of the first embodiment, a gasoline electronic fuel injection engine mainboard interface, a gasoline electronic fuel injection engine mainboard connector, and a display unit;

[0043] The connector is connected in series between the gasoline electronic fuel injection engine mainboard interface and the gasoline electronic fuel injection engine mainboard connector, and at least one lead pin 6 of the connector is electrically connected to the display unit.

[0044] In this embodiment, the connector can be directly connected between the gasoline electronic fuel injection engine mainboard interface and the gasoline electronic fuel injection engine mainboard connector, and then at least one lead pin 6 is arranged on the connector, and at least one lead pin 6 is electrically connected to the corresponding pin 4, so the relevant data transmitted between the gasoline electronic fuel injection engine mainboard interface and the gasoline electronic fuel injection engine mainboard connector can be obtained from at least one lead pin 6. The connector has the advantages of simple structure, strong practicality and easy assembly.

[0045] As a further optimization of this embodiment, the display unit includes a processor and a display screen, at least one lead pin 6 of the connector is electrically connected to the IO port of the processor, and the data port of the display screen is electrically connected to the IO port of the processor, wherein the processor can be an STM32 series microcontroller, and the processor can analyze and process the pulse signal between 0 and 2.5V uploaded by pin 4 of serial number 41 and the pulse signal between 2.5V and 5V uploaded by pin 4 of serial number 42 to obtain corresponding monitoring data, which is then displayed on the display screen.

[0046] The connector of the present invention can be directly connected between the gasoline electronic fuel injection engine mainboard interface and the gasoline electronic fuel injection engine mainboard connector, and then at least one lead pin 6 is arranged on the connector, and at least one lead pin 6 is electrically connected to the corresponding pin 4, so the display unit can collect relevant parameters of the gasoline electronic fuel injection engine through at least one lead pin 6 to realize monitoring of the gasoline electronic fuel injection engine.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A connector, comprising a connector body (1), characterized in that: A male connector (2) is provided at one end of the connector body (1), a female connector (3) is provided at the other end of the connector body (1), a plurality of first slots (5) are provided on the female connector (3), pins (4) corresponding to the first slots (5) are provided in the male connector (2), and a plurality of lead pins (6) are provided in the middle of the connector body (1), and the lead pins (6) are electrically connected to the pins (4).

2. The connector according to claim 1, wherein: The number of the lead pins (6) is four, and the pins (4) connected to the four lead pins (6) are respectively a power supply, a ground wire, a CAN data bus low, and a CAN data bus high.

3. The connector according to claim 2, wherein: The four lead pins (6) are all arranged on one side of the connector body (1); a second slot (7) is provided on one side of the connector body (1); and one end of the four lead pins (6) is located in the second slot (7).

4. The connector according to claim 3, wherein: An anti-fool-proof structure is provided on the inner side wall of the second slot (7), and the anti-fool-proof structure comprises an anti-fool-proof convex strip provided on one side of the connector body (1) and an anti-fool-proof groove provided on the other side of the connector body.

5. The connector according to claim 1, wherein: At least one limiting protrusion (8) is provided on the edge of the male connector (2), and a limiting groove (9) matching the limiting protrusion (8) is provided on the inner wall of the edge of the female connector (3).

6. A monitoring system for an electronic fuel injection engine, characterized in that: include: The connector according to any one of claims 1 to 5; Gasoline electronic fuel injection engine mainboard interface and gasoline electronic fuel injection engine mainboard connector; the connector is connected in series between the gasoline electronic fuel injection engine mainboard interface and the gasoline electronic fuel injection engine mainboard connector; The display unit is provided, and the lead pin (6) on the connector is electrically connected to the display unit.

7. The monitoring system for an electronic fuel injection engine according to claim 6, characterized in that: The display unit comprises a processor and a display screen, the lead pin (6) on the connector is electrically connected to the IO port of the processor, and the data port of the display screen is electrically connected to the IO port of the processor.

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