A car charcoal canister with internal detection of electronic components

Abstract

This invention provides an automotive carbon canister with internal electronic component detection, comprising a carbon canister body, with connecting seats welded to all four sides of one side and a connecting shell welded to the other side; a maintenance cover is bolted to the connecting shell, and a temperature sensor is embedded in the center of the maintenance cover for fixation; an assembly head is welded to the upper part of the carbon canister body for connection; a first solenoid valve is threadedly connected to the upper side of the carbon canister body, and a detection tube frame structure is connected to the upper end of the first solenoid valve. The detection tube frame structure includes a T-connector, with a second solenoid valve threaded to one end and a splicing shell welded to the other end; a disassembly cover is bolted to the splicing shell. This invention, through the setting of the detection tube frame structure, can periodically detect the internal pressure of the carbon canister body, thereby facilitating the detection of internal leaks and providing a warning, while preventing prolonged leakage from affecting its use.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and in particular relates to an automotive carbon canister with internal detection of electronic components. Background Technology

[0002] The full name of this automotive charcoal canister is the fuel evaporative emission control activated carbon canister. It is a component connected to the automotive fuel evaporative emission control system. This component uses the adsorption capacity of activated carbon to "capture" gasoline vapors in the fuel tank and release them to the engine to burn when appropriate. However, it is inconvenient to know the specific situation when it is damaged or leaking, which will affect its use. It is also inconvenient to detect its temperature to determine whether it is damaged. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an automotive carbon canister with internal detection of electronic components, which realizes the function of periodically checking the internal pressure, thereby making it easy to know whether there is an internal leak and avoid affecting its use, and also to check the surface temperature, so as to know whether the temperature is cool and determine whether it is damaged.

[0004] The technical solution is as follows: a car carbon canister with internal electronic component detection, including a carbon canister body, with connecting seats welded to all four sides of one side of the carbon canister body and a connecting shell welded to the other side; a maintenance cover is bolted to the connecting shell, and a temperature sensor is embedded in the middle of the maintenance cover for fixation; an assembly head is welded to the upper part of the carbon canister body for connection; a first solenoid valve is threadedly connected to the upper side of the carbon canister body, and a detection tube rack structure is connected to the upper end of the first solenoid valve.

[0005] Preferably, the detection tube rack structure includes a three-way pipe, one end of which is threadedly connected to a second solenoid valve, and the other end is welded to a splicing shell; a disassembly cover is bolted to the splicing shell; a negative pressure pump is threadedly connected to the second solenoid valve; and a pressure sensor is embedded inside the disassembly cover for fixation.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0007] In this invention, the first solenoid valve, the three-way pipe, and the second solenoid valve are designed to work in conjunction with a pressure sensor and a negative pressure pump.

[0008] In this invention, the splicing shell and the detachable cover facilitate disassembly for inspection and maintenance of the pressure sensor.

[0009] In this invention, the negative pressure pump and pressure sensor are designed to periodically detect the internal pressure of the carbon canister, thereby providing a warning of any internal leaks and preventing prolonged leakage from affecting its use. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the detection tube rack structure of this utility model.

[0013] In the picture:

[0014] 1. Carbon canister body; 2. Connecting seat; 3. Assembly head; 4. First solenoid valve; 5. Connecting shell; 6. Detection pipe rack structure; 61. T-pipe; 62. Second solenoid valve; 63. Negative pressure pump; 64. Splicing shell; 65. Disassembly cover; 66. Pressure sensor; 7. Maintenance cover; 8. Temperature sensor. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] Example:

[0017] As attached Figure 1 and attached Figure 2 As shown, an automotive carbon canister with internal electronic component detection includes a carbon canister body 1. Connecting seats 2 are welded to all four sides of one side of the carbon canister body 1, and a connecting shell 5 is welded to the other side. A maintenance cover 7 is bolted to the connecting shell 5, and a temperature sensor 8 is embedded in the middle of the maintenance cover 7 for fixation. An assembly head 3 is welded to the upper part of the carbon canister body 1 for communication. A first solenoid valve 4 is threadedly connected to the upper side of the carbon canister body 1, and a detection tube frame structure 6 is connected to the upper end of the first solenoid valve 4.

[0018] As attached Figure 3 As shown in the above embodiment, specifically, the detection tube rack structure 6 includes a three-way pipe 61, one end of which is threadedly connected to a second solenoid valve 62, and the other end is welded to a splicing shell 64; a disassembly cover 65 is bolted to the splicing shell 64; a negative pressure pump 63 is threadedly connected to the second solenoid valve 62; and a pressure sensor 66 is embedded inside the disassembly cover 65 for fixation.

[0019] In the above embodiment, specifically, the end of the temperature sensor 8 is in close contact with the surface of the carbon canister body 1 and is supported by the maintenance cover 7.

[0020] In the above embodiments, specifically, the maintenance cover 7 is movably connected to the connecting shell 5, and the temperature sensor 8 support rod is inside the connecting shell 5 to detect the surface temperature, so as to know whether the surface is cool and thus determine whether it is damaged.

[0021] In the above embodiments, specifically, the lower end of the three-way pipe 61 is threadedly connected to the first solenoid valve 4, and both are connected to the carbon canister body 1.

[0022] In the above embodiment, specifically, both ends of the upper part of the three-way pipe 61 are connected to the splicing shell 64 and the second solenoid valve 62, and the rear end of the pressure sensor 66 is movably embedded inside the three-way pipe 61 for use.

[0023] In the above embodiments, specifically, the first solenoid valve 4, temperature sensor 8, second solenoid valve 62, negative pressure pump 63, and pressure sensor 66 are all electrically connected to the vehicle's central control system for drive detection.

[0024] Working principle

[0025] The working principle of this utility model is as follows: The carbon canister body 1 is fixed to the car by bolts through the connecting seat 2. At the same time, the assembly head 3 is connected to the fuel tank line, engine line and ventilation line respectively. In this way, steam enters the carbon canister body 1 and is adsorbed. After adsorption, it enters the engine line. During use, it can be ventilated through the ventilation line. During use, the temperature sensor 8 can detect the temperature of the carbon canister body 1 in real time to know its status. At the same time, when periodically checking the internal pressure of the carbon canister body 1, the valves on the fuel tank line, engine line and ventilation line are closed to seal the carbon canister body 1. Then, the first solenoid valve 4 and the second solenoid valve 62 are opened and a certain amount of pressure is injected into the carbon canister body 1 through the negative pressure pump 63. Then, the second solenoid valve 62 is closed. In this way, the pressure sensor 66 can detect whether the pressure continues to weaken to know whether there is leakage or damage.

[0026] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution of this utility model, falls within the protection scope of this utility model.

Claims

1. A car carbon canister with internal detection of electronic components, comprising a carbon canister body (1), wherein connecting seats (2) are welded to all four sides of one side of the carbon canister body (1), and a connecting shell (5) is welded to the other side; a maintenance cover (7) is bolted to the connecting shell (5), and a temperature sensor (8) is embedded in the middle of the maintenance cover (7) for fixation; an assembly head (3) is welded to the upper part of the carbon canister body (1) for communication; a first solenoid valve (4) is threadedly connected to the upper side of the carbon canister body (1), and a detection tube frame structure (6) is connected to the upper end of the first solenoid valve (4), characterized in that, The detection tube frame structure (6) includes a three-way tube (61), one end of which is threaded to a second solenoid valve (62), and the other end is welded to a splicing shell (64); a disassembly cover (65) is bolted to the splicing shell (64); a negative pressure pump (63) is threaded to the second solenoid valve (62); and a pressure sensor (66) is embedded inside the disassembly cover (65) for fixation.

2. The automotive carbon canister with internal electronic component detection as described in claim 1, characterized in that, The end of the temperature sensor (8) is in close contact with the surface of the carbon canister body (1) and is supported by the maintenance cover (7).

3. The automotive carbon canister with internal electronic component detection as described in claim 1, characterized in that, The maintenance cover (7) is movably connected to the connecting shell (5), and the temperature sensor (8) support rod is inside the connecting shell (5).

4. The automotive charcoal canister with internal electronic component detection as described in claim 1, characterized in that, The lower end of the three-way pipe (61) is threadedly connected to the first solenoid valve (4), and both are connected to the carbon canister body (1).

5. The automotive carbon canister with internal electronic component detection as described in claim 1, characterized in that, Both ends of the upper part of the three-way pipe (61) are connected to the splicing shell (64) and the second solenoid valve (62), and the rear end of the pressure sensor (66) is movably embedded inside the three-way pipe (61) for use.

6. The automotive charcoal canister with internal electronic component detection as described in claim 2, characterized in that, The first solenoid valve (4), temperature sensor (8), second solenoid valve (62), negative pressure pump (63), and pressure sensor (66) are all electrically connected to the vehicle's central control system for drive detection.

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