Novel vehicle-mounted gas alarm

Abstract

A novel vehicle-mounted fuel gas alarm relates to the technical field of automobile sensors and comprises a shell, a sensor, a PCB (printed circuit board), a connecting terminal and a fixing ring, the fixing ring is arranged on one side of the shell, the shell is mounted on a vehicle fuel gas pipeline through the fixing ring, the connecting terminal is arranged on the outer surface of the shell and electrically connected with an external power supply, the sensor and the PCB are arranged in the shell, and the sensor and the PCB are electrically connected with the fixing ring. The sensor is electrically connected with the PCB, the PCB is electrically connected with the connecting terminal, and the sensor is in signal connection with an external alarm; the vehicle-mounted gas sensor is high in practicability and very convenient to use, the sensor and the PCB are arranged at the gas inlet of the shell, the sensor can conveniently monitor gas leaked in a vehicle, and the safety of the vehicle is improved; the waterproof breathable film is arranged at the air inlet, and the waterproof sealing ring is arranged at the joint of the upper cover and the lower cover, so that external steam is prevented from entering the shell, and the internal sensor and the PCB are prevented from being affected by damp to work.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile sensors, in particular to a novel vehicle-mounted gas alarm. Background Art

[0002] Gas vehicles use liquefied petroleum gas or compressed natural gas as energy, and their emissions of CO, hydrogen hydroxide and nitrogen oxides are significantly reduced. In addition, because the cost of using liquefied petroleum gas or compressed natural gas is lower than that of ordinary fuel vehicles, they are widely used.

[0003] LPG or CNG flows in the form of gas in the pipeline during the use of gas vehicles. There is a risk of gas leakage during the use of gas vehicles, so the pipeline needs to be inspected regularly, especially in the relatively closed space inside the car. Once the gas leaks, the gas concentration in the car increases, which is very likely to cause accidents and threaten the life and property safety of the driver and passengers. Therefore, we propose a new type of vehicle-mounted gas alarm. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model discloses a novel vehicle-mounted gas alarm. The utility model arranges connecting terminals and a fixing ring on the shell, and arranges sensors and a PCB board inside the shell, so as to achieve the purpose of timely issuing an alarm signal when a gas leak in the car is detected.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] A new type of vehicle-mounted gas alarm includes a shell, a sensor, a PCB board, a connecting terminal and a fixing ring. A fixing ring is provided on one side of the shell, and the shell is installed on the vehicle gas pipeline through the fixing ring. A connecting terminal is provided on the outer surface of the shell, and the connecting terminal is electrically connected to an external power supply. A sensor and a PCB board are provided in the shell, and the sensor is electrically connected to the PCB board, the PCB board is electrically connected to the connecting terminal, and the sensor is connected to an external alarm signal.

[0007] The shell comprises an upper cover and a lower cover, the upper cover and the lower cover are matched and arranged, and the upper cover and the lower cover are clamped with each other.

[0008] The lower edge of the upper cover is provided with a groove, and the upper edge of the lower cover is correspondingly provided with a groove. Waterproof sealing rings are provided in the grooves of the upper cover and the lower cover. The upper end of the waterproof sealing ring abuts against the inner wall of the groove of the lower surface of the upper cover, and the lower end of the waterproof sealing ring abuts against the inner wall of the groove of the upper surface of the lower cover.

[0009] An air inlet is arranged at the upper end of the upper cover, the connecting terminal and the fixing ring are both arranged on the upper cover, and the sensor is arranged inside the upper cover, and the sensor is arranged below the air inlet.

[0010] A waterproof and breathable membrane is provided between the sensor and the air inlet.

[0011] The sensor is provided with a shock-absorbing rubber pad, which is a hollow cylindrical structure. The shock-absorbing rubber pad is sleeved on the sensor, and the two ends of the sensor are flush with the two bottom surfaces of the shock-absorbing rubber pad.

[0012] The PCB board is arranged at an end of the sensor away from the air inlet, and the PCB board abuts against the inner surface of the lower cover.

[0013] The utility model discloses a novel vehicle-mounted gas alarm, which is highly practical and very convenient to use. By arranging a sensor and a PCB board at the air inlet of the shell, the sensor can monitor the gas leakage in the car and improve the safety of the vehicle. By arranging a waterproof and breathable membrane at the air inlet and a waterproof sealing ring at the joint of the upper cover and the lower cover, external water vapor can be prevented from entering the shell, and the internal sensor and PCB board can be prevented from being affected by moisture. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the position relationship of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] In the figure: 1. Upper cover; 2. Air inlet; 3. Lower cover; 4. Waterproof breathable membrane; 5. Shock-absorbing rubber pad; 6. Sensor; 7. PCB board; 8. Waterproof sealing ring; 9. Connection terminal; 10. Fixing ring. DETAILED DESCRIPTION

[0017] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0018] Combined with Figure 1~2 A novel vehicle-mounted gas alarm comprises a shell, a sensor 6, a PCB board 7, a connecting terminal 9 and a fixing ring 10. A fixing ring 10 is provided on one side of the shell, and the shell is installed on the vehicle gas pipeline through the fixing ring 10. A connecting terminal 9 is provided on the outer surface of the shell, and the connecting terminal 9 is electrically connected to an external power supply. A sensor 6 and a PCB board 7 are provided in the shell, and the sensor 6 is electrically connected to the PCB board 7, and the PCB board 7 is electrically connected to the connecting terminal 9. The sensor 6 is connected to an external alarm signal.

[0019] The housing comprises an upper cover 1 and a lower cover 3 , the upper cover 1 and the lower cover 3 are matched and arranged, and the upper cover 1 and the lower cover 3 are clamped with each other.

[0020] A groove is provided at the lower edge of the upper cover 1, and a groove is correspondingly provided at the upper edge of the lower cover 3. A waterproof sealing ring 8 is provided in the grooves of the upper cover 1 and the lower cover 3. The upper end of the waterproof sealing ring 8 abuts against the inner wall of the groove on the lower surface of the upper cover 1, and the lower end of the waterproof sealing ring 8 abuts against the inner wall of the groove on the upper surface of the lower cover 3. The waterproof sealing ring 8 prevents humid gas from entering the outer shell from the joint between the upper cover 1 and the lower cover 3, thereby preventing the internal sensor 6 and the PCB board 7 from being affected by moisture.

[0021] An air inlet 2 is provided at the upper end of the upper cover 1 , a connecting terminal 9 and a fixing ring 10 are both arranged on the upper cover 1 , a sensor 6 is arranged inside the upper cover 1 , and the sensor 6 is arranged below the air inlet 2 . Gas enters the housing from the air inlet 2 and is sensed by the sensor 6 .

[0022] A waterproof breathable membrane 4 is provided between the sensor 6 and the air inlet 2, and the waterproof breathable membrane 4 prevents external humid gas from entering the housing through the air inlet 2, thereby protecting the internal sensor 6 and the PCB board 7 from moisture and affecting normal operation.

[0023] The sensor 6 is provided with a shock-absorbing rubber pad 5, which is a hollow cylindrical structure. The shock-absorbing rubber pad 5 is sleeved on the sensor 6, and the two ends of the sensor 6 are flush with the two bottom surfaces of the shock-absorbing rubber pad 5. The shock-absorbing rubber pad 5 buffers the vibration of the sensor 6 during the driving of the car.

[0024] The PCB board 7 is arranged at the end of the sensor 6 away from the air inlet 2, and the PCB board 7 is in contact with the inner surface of the lower cover 3. The lower cover 3 and the upper cover 1 cooperate to fix the PCB board 7 and the sensor 6 in the shell to avoid damage caused by vibration, and make the sensor 6 fit under the air inlet 2, so as to improve the accuracy of monitoring and send out an alarm signal in time to prompt the driver and passengers in the car.

[0025] A novel vehicle-mounted gas alarm described in the embodiment has its shell installed inside the car when in use, is connected to an external power supply using a connecting terminal 9, and has a signal connection between a sensor 6 and an external alarm. When gas leaks inside the car during operation, gas enters from the air inlet 2, and the sensor 6 senses the gas and outputs an alarm signal to the alarm, prompting the driver and passengers in the car to leave and carry out maintenance. During use, the waterproof and breathable membrane 4 prevents external humid gas from entering the shell from the air inlet 2, and the waterproof sealing ring 8 prevents humid gas from entering the shell from the joint between the upper cover 1 and the lower cover 3, thereby protecting the internal sensor 6 and the PCB board 7 from moisture that affects normal operation and improving the service life of the equipment.

[0026] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and ways to implement the technical solution. The above is only a preferred implementation scheme of the present invention. However, technical personnel in the relevant field should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined in the attached claims, which are all within the scope of protection of the present invention.

Claims

1. A novel vehicle-mounted gas alarm, comprising a housing, a sensor (6), a PCB board (7), a connection terminal (9) and a fixing ring (10), wherein the fixing ring (10) is provided on one side of the housing, the housing is installed on the vehicle gas pipeline through the fixing ring (10), and a connection terminal (9) is provided on the outer surface of the housing, the connection terminal (9) is electrically connected to an external power supply, and is characterized in that: A sensor (6) and a PCB board (7) are arranged in the housing, the sensor (6) is electrically connected to the PCB board (7), the PCB board (7) is electrically connected to the connection terminal (9), and the sensor (6) is connected to an external alarm signal.

2. The new vehicle-mounted gas alarm according to claim 1 is characterized in that: The housing comprises an upper cover (1) and a lower cover (3), wherein the upper cover (1) and the lower cover (3) are arranged in coordination with each other, and the upper cover (1) and the lower cover (3) are mutually clamped.

3. The new vehicle-mounted gas alarm according to claim 2 is characterized in that: The lower edge of the upper cover (1) is provided with a groove, and the upper edge of the lower cover (3) is provided with a corresponding groove. A waterproof sealing ring (8) is provided in the grooves of the upper cover (1) and the lower cover (3). The upper end of the waterproof sealing ring (8) abuts against the inner wall of the groove on the lower surface of the upper cover (1), and the lower end of the waterproof sealing ring (8) abuts against the inner wall of the groove on the upper surface of the lower cover (3).

4. The new vehicle-mounted gas alarm according to claim 3 is characterized in that: An air inlet (2) is provided at the upper end of the upper cover (1), the connecting terminal (9) and the fixing ring (10) are both arranged on the upper cover (1), the sensor (6) is arranged inside the upper cover (1), and the sensor (6) is arranged below the air inlet (2).

5. The novel vehicle-mounted gas alarm according to claim 4 is characterized in that: A waterproof and breathable membrane (4) is provided between the sensor (6) and the air inlet (2).

6. The new vehicle-mounted gas alarm according to claim 5 is characterized in that: The sensor (6) is provided with a shock-absorbing rubber pad (5), which is a hollow cylindrical structure. The shock-absorbing rubber pad (5) is sleeved on the sensor (6), and the two ends of the sensor (6) are flush with the two bottom surfaces of the shock-absorbing rubber pad (5).

7. The novel vehicle-mounted gas alarm according to claim 6 is characterized in that: The PCB board (7) is arranged at an end of the sensor (6) away from the air inlet (2), and the PCB board (7) abuts against the inner surface of the lower cover (3).

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