Lightning protection combustible gas alarm controller

Abstract

The utility model discloses a lightning protection combustible gas alarm controller, which comprises a shell, a fan and a cover plate, a main control board and a lightning protection device are arranged in the shell, the main control board is electrically connected with the lightning protection device, a detection head is arranged on the main control board, the fan is arranged in the shell, the fan is electrically connected with the main control board, the fan is used for accelerating air to flow through the detection head, and the cover plate is arranged on the shell. The cover plate is installed on the surface of the shell, the dustproof net is placed in the cover plate and located between the cover plate and the shell, the edge of the surface of the cover plate is provided with a ventilation opening, the lower portion of the inner surface of the cover plate and the lower portion of the inner surface of the shell are provided with the positive pole magnet and the negative pole magnet respectively, and the fan accelerates air to flow into the shell from the ventilation opening. The combustible gas can be detected by the detection head more quickly, the detection sensitivity is improved, leakage of the combustible gas and flowing of air in the shell can be found more timely, the heat of the main control board can be dissipated, and the temperature of the main control board can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a lightning-proof combustible gas alarm controller. Background Art

[0002] When the combustible gas alarm controller detects that the concentration of combustible gas reaches the alarm value set by the alarm, the combustible gas alarm will emit audible and visual alarm signals to remind people to take safety measures such as personnel evacuation, forced ventilation, and equipment shutdown.

[0003] In the related art, through retrieval, it is found that in a solution of a combustible gas alarm controller (publication number CN216083907U), the protective plate is provided to protect the display screen. When not in use, it can prevent others from accidentally touching the buttons by mistake, avoid affecting the settings of the controller, ensure the normal use of the device, improve safety, and the designed cushion block plays a shock-absorbing role to prevent the display screen from being damaged.

[0004] The above-mentioned combustible gas alarm controller detects combustible gas by means of natural air flow, and the detection speed is slow. The combustible gas in the air may take a long time to diffuse to the position where the detector is located and thus be detected. In addition, the combustible gas alarm controller generally works continuously for 24 hours. Since the electronic components are closely attached to the inside of the housing, the heat dissipation effect of the electronic components is poor, and faults are likely to occur. Summary of the Invention

[0005] The purpose of the utility model is to provide a lightning-proof combustible gas alarm controller to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A lightning-proof combustible gas alarm controller, including a housing, a main control board and a lightning arrester are installed inside the housing, and the main control board and the lightning arrester are electrically connected. The main control board is provided with a detection head. The lightning arrester can prevent lightning from damaging the combustible gas alarm controller and also improve the explosion-proof ability of the combustible gas alarm controller.

[0007] A fan, the fan is installed inside the housing, and the fan is electrically connected to the main control board. The fan is used to accelerate the air flow through the detection head. The fan can accelerate the air flow to dissipate heat from the main control board and also helps the combustible gas to pass through the detection head.

[0008] A cover plate, the cover plate is installed on the surface of the housing. A dust-proof net is placed inside the cover plate. The dust-proof net is located between the cover plate and the housing. Ventilation openings are provided at the edge of the surface of the cover plate. Positive magnets and negative magnets are respectively provided on the lower parts of the inner surfaces of the cover plate and the housing. The magnetic adsorption installation method facilitates the removal of the cover plate.

[0009] Further, sound holes are provided in the lower part of the surface of the cover plate. The sound holes can spread the alarm sound and also play a role in ventilation.

[0010] Further, a hanging ring is provided inside the housing. A hook is installed on the hanging ring, and the hook is fixedly connected to the cover plate. This realizes the rotational connection between the cover plate and the housing and can also prevent the cover plate from falling off the housing.

[0011] Further, a partition cover is provided inside the housing, and the partition cover covers the surface of the main control board. When the cover plate is opened, the partition cover covers the main control board to avoid the problem of electric leakage.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] (1) The fan accelerates the flow of air into the housing through the ventilation port. When combustible gas leaks, the combustible gas can be detected by the detection head more quickly, improving the detection sensitivity and enabling the leakage of combustible gas to be discovered more timely. The air flowing in the housing can also dissipate heat from the main control board and reduce the temperature of the main control board.

[0014] (2) The lightning arrester plays a role in protecting the main control board from lightning, avoiding overload damage to the main control board caused by lightning, improving the stability of the combustible gas alarm controller, and being not easily damaged during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the present utility model;

[0016] Figure 2 is the schematic diagram of the internal structure of the housing of the present utility model;

[0017] Figure 3 is the exploded view of the present utility model.

[0018] In the figure: 1, cover plate; 2, ventilation port; 3, sound hole; 4, tube; 5, dust-proof net; 6, power supply plug; 7, opening strip; 8, housing; 9, main control board; 10, detection head; 11, lightning arrester; 12, fan; 13, hanging ring; 14, hook; 15, negative magnet; 16, positive magnet; 17, partition cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0020] Please refer to Figures 1-3 , the utility model provides a technical solution: a lightning protection combustible gas alarm controller, including a shell 8, a main control board 9 and a lightning arrester 11 are installed inside the shell 8, and the main control board 9 and the lightning arrester 11 are electrically connected. When lightning occurs, the lightning arrester 11 can quickly guide the overvoltage and overcurrent generated by lightning into the ground, thereby preventing lightning from directly hitting or sensing the combustible gas alarm controller, causing damage or malfunction thereof. The main control board 9 is provided with a detection head 10, and the detection head 10 detects the concentration of combustible gas in real time. When the concentration is too high, the buzzer on the main control board 9 sounds;

[0021] Fan 12, the fan 12 is installed inside the housing 8, and the fan 12 is electrically connected to the main control board 9. The fan 12 is used to accelerate the air flow through the detection head 10, and has a heat dissipation effect on the main control board 9, ensuring that the main control board 9 will not be overheated when it continues to work;

[0022] Cover 1, the cover 1 is mounted on the surface of the shell 8, a dust screen 5 is placed inside the cover 1, the dust screen 5 is located between the cover 1 and the shell 8, the dust screen 5 can block some dust to prevent dust accumulation inside the shell 8, the edge of the surface of the cover 1 is provided with a vent 2, the cover 1 and the lower part of the inner surface of the shell 8 are respectively provided with a positive magnet 16 and a negative magnet 15, the shell 8 and the cover 1 are attached by magnetic attraction, and the dust screen 5 is ensured to be clamped by the cover 1 and the shell 8.

[0023] In this embodiment, if Figure 1 As shown in FIG. 1 , the housing 8 is connected with a power plug 6, which is electrically connected to the lightning arrester 11. The power plug 6 has a ground wire, which can ground the main control board 9 to prevent the main control board 9 from being damaged by lightning.

[0024] In this embodiment, if Figure 1 As shown in , the surface of the cover plate 1 is provided with a tube 4, which is used to view the dust screen 5. The wind exhausted by the fan 12 is discharged through the tube 4 to ensure that the air flow inside the housing 8 is not blocked.

[0025] In this embodiment, if Figure 1 As shown in , the lower part of the surface of the cover plate 1 is provided with a sound outlet 3, which allows the sound of the buzzer to be better diffused, and the sound outlet 3 also serves as a ventilation function.

[0026] In this embodiment, if Figure 3 As shown, it is characterized in that: a hanging ring 13 is provided inside the housing 8, a hook 14 is installed on the hanging ring 13, and the hook 14 is fixedly connected to the cover plate 1. The hook 14 hangs on the hanging ring 13, so that the cover plate 1 can be opened, and the dustproof net 5 can be removed and cleaned.

[0027] ​​In this embodiment, as Figure 3 shown, an opening strip 7 is fixedly connected to the lower side surface of the cover plate 1, and the opening strip 7 is used to conveniently lift the cover plate 1 quickly.

[0028] In this embodiment, as Figure 3 shown, a partition cover 17 is provided inside the housing 8, and the partition cover 17 covers the surface of the main control board 9. After the cover plate 1 is opened, the partition cover 17 separates the main control board 9 to avoid accidental contact with the main control board 9.

[0029] Specifically, during use, after the power supply plug 6 is inserted into the socket, the power supply plug 6 supplies power to the main control board 9, and the main control board 9 controls the detection head 10 and the fan 12 to work. When the fan 12 rotates, outside air flows from the ventilation port 2 into the housing 8, causing the air inside the housing 8 to flow quickly. When combustible gas leaks, the combustible gas and air flow into the housing 8 together, and the detection head 10 detects the combustible gas. If the concentration of the combustible gas is too high, the buzzer emits a warning sound;

[0030] When the dust-proof net 5 needs to be cleaned, lift the cover plate 1 so that the cover plate 1 and the housing 8 no longer clamp the dust-proof net 5. At this time, the dust-proof net 5 can be taken out of the housing 8, and the dust-proof net 5 can be cleaned.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightning protection combustible gas alarm controller, characterized in that: include: A housing (8), wherein a main control board (9) and a lightning arrester (11) are installed inside the housing (8), and the main control board (9) and the lightning arrester (11) are electrically connected, and the main control board (9) is provided with a detection head (10); A fan (12), the fan (12) being installed inside the housing (8), and the fan (12) being electrically connected to the main control board (9), and the fan (12) being used to accelerate air flow through the detection head (10); A cover plate (1), the cover plate (1) being mounted on the surface of a shell (8), a dust screen (5) being placed inside the cover plate (1), the dust screen (5) being located between the cover plate (1) and the shell (8), a vent (2) being provided at the edge of the surface of the cover plate (1), and a positive magnet (16) and a negative magnet (15) being provided at the lower part of the inner surface of the cover plate (1) and the shell (8), respectively.

2. The lightning protection combustible gas alarm controller according to claim 1 is characterized in that: The housing (8) is clamped with a power supply plug (6), and the power supply plug (6) is electrically connected to the lightning arrester (11).

3. The lightning protection combustible gas alarm controller according to claim 1 is characterized in that: A tube (4) is provided on the surface of the cover plate (1), and the tube (4) is used to inspect the dustproof net (5).

4. The lightning protection combustible gas alarm controller according to claim 1 is characterized in that: A sound outlet hole (3) is provided at the lower part of the surface of the cover plate (1).

5. The lightning protection combustible gas alarm controller according to claim 1 is characterized in that: A hanging ring (13) is provided inside the shell (8), a hook (14) is mounted on the hanging ring (13), and the hook (14) is fixedly connected to the cover plate (1).

6. The lightning protection combustible gas alarm controller according to claim 1 is characterized in that: An opening strip (7) is fixedly connected to the lower side of the cover plate (1).

7. The lightning protection combustible gas alarm controller according to claim 1 is characterized in that: A partition cover (17) is provided inside the housing (8), and the partition cover (17) covers the surface of the main control board (9).

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