Novel wireless smoke pot device

By using an ultra-high frequency wireless power supply transmitter chip and a wireless induction drive circuit with a custom PCB printed coil, contactless and non-contact wireless smoke generation is achieved, solving the problems of poor contact and easy damage of traditional smoke generators, and improving the practicality and market competitiveness of the product.

CN224020167UActive Publication Date: 2026-03-20CHONGQING BINGWEI ZHIXUN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Traditional smoke generators suffer from poor contact, are easily damaged, and are complex to maintain. Furthermore, existing wireless smoke generation technology has low integration, complex driving circuits, and is not conducive to modular design and expansion.

Method used

The wireless induction drive circuit, which uses an ultra-high frequency wireless power supply transmitter chip and a custom PCB printed coil, realizes the wireless smoke generation function without contact. It has a high degree of integration and requires very few external components. By adjusting the resistance, capacitance and coil parameters, it can be adapted to different sizes and power requirements.

Benefits of technology

It solves the problems of poor contact and easy damage of traditional smoke generators, reduces production costs and process difficulty, improves the practicality and market competitiveness of the product, and is easy to modularly produce and apply on a large scale.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a novel wireless smoke pot device. The novel wireless smoke pot device comprises a wireless smoke pot and a radio induction driving circuit, the wireless smoke pot is connected with the radio induction driving circuit; the wireless fuming pot comprises a first wireless induction coil, an electronic ignition head and a fuming pyrotechnic composition; the wireless induction coil is connected with the electronic ignition head; the electronic ignition head is connected with the ignition pyrotechnic composition; the radio induction driving circuit comprises a second wireless induction coil and a control circuit; and the control circuit is connected with the second wireless induction coil and is used for receiving a control instruction sent by the MCU. The wireless smoke pot does not need extra power supply, and is simple in periphery, simple in process, easy to implement and small in size. A wireless charging chip scheme is adopted in the wireless induction driving circuit, wireless induction cigarette lighting can be achieved only through few peripheral devices, the size of a finished product is further compressed, and the production process and the cost are further optimized.
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Description

Technical Field

[0001] This utility model relates to the field of intelligent terminal control technology, and in particular to a novel wireless smoke generator. Background Technology

[0002] Smoke canisters are widely used in live-action CS, simulated combat, and live-fire exercises, primarily for indicating injuries during combat. Traditional smoke canisters are contact-based, requiring the two metal contacts to be wired or physically connected to a control unit. This method suffers from drawbacks such as poor contact, easy damage to the metal contacts, short lifespan, and inconvenient maintenance. To overcome these shortcomings, a contactless, wireless smoke canister needs to be developed.

[0003] The existing patent technology "CN110837238A" proposes to use an MCU to generate a square wave signal, which is then processed by a circuit composed of transistors, MOSFETs, capacitors, etc., and converted into a sinusoidal AC signal. This AC signal is then output to a driver module, which uses the principle of electromagnetic induction to control the heating of an induction coil to achieve wireless cigarette lighting. However, this technology has low integration, requiring a large number of discrete components such as transistors, MOSFETs, and capacitors to form the driver circuit. It also requires an MCU to control the generation of a specific square wave signal. In addition, both the wireless induction transmitter and receiver require relatively complex driver circuits, which is not conducive to modular design and technological application expansion. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a novel wireless smoke generator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a novel wireless smoke generator device comprising: a wireless smoke generator and a wireless induction drive circuit; the wireless smoke generator and the wireless induction drive circuit are connected.

[0006] The wireless smoke generator includes: a first wireless induction coil, an electronic ignition head, and smoke-generating gunpowder; the wireless induction coil and the electronic ignition head are connected; the electronic ignition head and the smoke-generating gunpowder are connected.

[0007] The radio induction drive circuit includes: a second wireless induction coil and a control circuit; the control circuit is connected to the second wireless induction coil and is used to receive control commands sent by the MCU.

[0008] In one embodiment, the control circuit includes: integrated circuit U1, resistor R1, resistor R2, capacitor C1 and capacitor C2;

[0009] Pins 1 and 2 of integrated circuit U1 are connected to both ends of resistor R2; pin 2 of integrated circuit U1 is connected to one end of resistor R1; the other end of resistor R1 is connected to the power supply; pins 3 and 4 of integrated circuit U1 are grounded; pins 5 and 7 of integrated circuit U1 are connected in parallel with capacitor C2 and then connected to the second wireless induction coil; pin 7 of integrated circuit U1 is also connected to the power supply; pin 7 of integrated circuit U1 is also connected to capacitor C1 and then grounded; pin 8 of integrated circuit U1 is connected to the GPIO port of the MCU.

[0010] As can be seen from the above, the novel wireless smoke generator provided by this utility model achieves contactless and contactless wireless smoke generation by employing an ultra-high frequency wireless power supply transmitter chip and a wireless induction drive circuit with a customized PCB printed coil. This completely solves the problems of poor contact, easy damage, and complex maintenance of traditional contact-type smoke generators. Its drive circuit has a high degree of integration, requiring only a few external components, significantly simplifying the complex discrete component circuits of traditional solutions and reducing production costs and process difficulty. Simultaneously, by adjusting the chip's external resistance and capacitance parameters, as well as the design parameters such as the line width and number of turns of the PCB coil, it can flexibly adapt to different smoke generator sizes, sensing distances, and power requirements, offering strong scalability. Furthermore, the wireless smoke generator itself adopts a passive design, requiring only the replacement of traditional metal contacts with a PCB coil. This results in a simple structure, small size, and high reliability. Combined with a mature wireless charging chip solution, it is easy to modularly produce and scale up for application, significantly improving the product's practicality and market competitiveness. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of a novel wireless smoke generator according to an embodiment of the present invention.

[0013] Figure 2 This is a circuit diagram of the wireless sensing drive circuit according to an embodiment of the present invention. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0015] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0016] Depend on Figure 1 As shown, this utility model provides a novel wireless smoke generator device, comprising: a wireless smoke generator and a wireless induction drive circuit; the wireless smoke generator and the wireless induction drive circuit are connected.

[0017] The wireless smoke generator consists of a first wireless induction coil, an electronic ignition head, and smoke-generating gunpowder. The first wireless induction coil is connected to the electronic ignition head, and the electronic ignition head is connected to the smoke-generating gunpowder. All components are passive devices, requiring no additional power supply or complex external drive circuitry. Utilizing the principle of electromagnetic induction, the wireless induction coil receives an ultra-high frequency wireless alternating signal emitted by the wireless induction drive circuit. When the alternating signal exceeds the ignition threshold current of the electronic ignition head, the electronic ignition head is triggered, and the smoke-generating gunpowder is ignited, achieving contactless wireless smoke ignition.

[0018] The wireless induction drive circuit consists of a second wireless induction coil and a control circuit. The control circuit is connected to the second wireless induction coil and receives control commands sent by the MCU.

[0019] The control circuit includes: integrated circuit U1, second wireless induction coil A1, resistors R1 and R2, and capacitors C1 and C2. The circuit diagram of the wireless induction drive circuit is shown below. Figure 2 As shown.

[0020] Integrated circuit U1 is an ultra-high frequency wireless power supply transmitter chip. Pins 1 and 2 of the chip are connected to resistor R2. The transmission frequency of the chip can be adjusted by modifying the parameters of resistors R1 and R2. Pins 7 and 5 of the chip are connected to capacitor C2. The transmission power, quiescent current, and other parameters can be adjusted by modifying the parameters of capacitor C2. Pin 7 of the chip is connected to the power supply and capacitor C1, which is used for power supply filtering. Pin 8 of the chip is connected to the GPIO port of the MCU for controlling the cigarette lighter enable. Pins 3 and 4 of the chip are grounded.

[0021] The wireless induction drive circuit utilizes an ultra-high frequency wireless power supply transmitter chip to send alternating electrical signals to the wireless induction coil. This chip, commonly used for wireless charging of electronic devices, is readily available in the market. Its operating frequency range is 1kHz-3.5MHz, and the operating frequency can be easily adjusted by modifying the parameters of resistors R1 and R2. The specific operating frequency is determined by parameters such as the induction coil parameters, sensing distance, and operating current. The wireless induction coil uses a PCB printed coil instead of a wire-wound coil, allowing for easy customization of the induction coil parameters to suit different application scenarios and greatly simplifying the manufacturing process.

[0022] When in use, the amount of smoke generated determines the size of the smoke generator. Based on the size of the smoke generator, combined with factors such as chip operating frequency, sensing distance, and operating current, parameters such as the line width, line spacing, number of coil turns, PCB copper thickness, and PCB material are adjusted to adapt to different application scenarios and achieve efficient, reliable, and convenient wireless cigarette lighting.

[0023] In practical use, the wireless smoke generator only requires replacing the existing mature metal contacts of the smoke generator with wireless induction coils, which are custom-made PCB coils. The wireless smoke generator requires no additional power supply, has a simple peripheral structure, is easy to manufacture, and is small in size.

[0024] This invention provides a novel wireless smoke generator, which achieves contactless and contactless smoke generation by employing an ultra-high frequency wireless power supply transmitter chip and a customized PCB printed coil wireless induction drive circuit. This completely solves the problems of poor contact, easy damage, and complex maintenance associated with traditional contact-type smoke generators. Its drive circuit has a high degree of integration, requiring only a few external components (resistors, capacitors, etc.), significantly simplifying the complex discrete component circuits (such as transistors, MOSFETs, etc.) in traditional solutions, reducing production costs and process difficulty. Simultaneously, by adjusting the chip's external resistor and capacitor parameters, as well as the PCB coil's line width and number of turns, it can flexibly adapt to different smoke generator sizes, sensing distances, and power requirements, offering strong scalability. Furthermore, the wireless smoke generator itself adopts a passive design (requiring no additional power supply), simply replacing traditional metal contacts with a PCB coil. This results in a simple structure, small size, and high reliability. Combined with a mature wireless charging chip solution, it is easy to modularly produce and scale up for application, significantly improving the product's practicality and market competitiveness.

[0025] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0026] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel wireless smoke generator, characterized in that, include: Wireless smoke generator and wireless induction drive circuit; The wireless smoke generator and the wireless induction drive circuit are connected; The wireless smoke generator includes: a first wireless induction coil, an electronic ignition head, and smoke-generating gunpowder; the wireless induction coil and the electronic ignition head are connected; the electronic ignition head and the smoke-generating gunpowder are connected. The radio induction drive circuit includes: a second wireless induction coil and a control circuit; the control circuit is connected to the second wireless induction coil and is used to receive control commands sent by the MCU.

2. The novel wireless smoke generator according to claim 1, characterized in that, The control circuit includes: integrated circuit U1, resistor R1, resistor R2, capacitor C1, and capacitor C2; Pins 1 and 2 of integrated circuit U1 are connected to both ends of resistor R2; pin 2 of integrated circuit U1 is connected to one end of resistor R1; the other end of resistor R1 is connected to the power supply; pins 3 and 4 of integrated circuit U1 are grounded; pins 5 and 7 of integrated circuit U1 are connected in parallel with capacitor C2 and then connected to the second wireless induction coil; pin 7 of integrated circuit U1 is also connected to the power supply; pin 7 of integrated circuit U1 is also connected to capacitor C1 and then grounded; pin 8 of integrated circuit U1 is connected to the GPIO port of the MCU.

Citation Information

Patent Citations

  • Driving system of wireless individual smoke pot, and application method thereof

    CN110837238A