Explosion-proof wireless interphone
By using an embedded sealing frame, adsorption soft magnetic stripe and semiconductor refrigeration sheet in the wireless intercom, the problem that wireless intercom cannot be explosion-proof in alcohol and toluene environments is solved, and the stable call effect is achieved in harmful gas environments.
Patent Information
- Application Number
- CN202421537728.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The existing wireless intercoms cannot effectively prevent explosion-proof in alcohol and toluene environments, resulting in these harmful gases being able to enter the box and affect the call effect.
An explosion-proof wireless intercom was designed, using a combination of an embedded sealing frame and an adsorption soft magnetic stripe to significantly improve the sealing of the box, and a semiconductor refrigeration sheet and a thermostat were installed in the box to achieve constant temperature refrigeration.
By improving the sealing of the box, the explosion-proof wireless intercom can effectively prevent alcohol and toluene gas from entering, thereby achieving stable intercom calls under these harmful gas environments.
Smart Images
Figure CN222776208U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of intercoms, in particular to an explosion-proof wireless intercom. Background Art
[0002] A wireless walkie-talkie is a two-way voice communication device that uses radio communication technology. The wireless walkie-talkie first converts the human voice into an analog electrical signal through a microphone. Since the electrical signal output by the microphone is very weak and cannot be directly used for radio transmission, an audio amplifier is required to amplify it to increase its power. The modulated electrical signal is sent to the radio frequency transmitter and transmitted through the antenna. The antenna converts the electrical signal into radio waves and transmits it into the air. The antenna on the receiving end receives the radio waves and converts them into electrical signals. The demodulator in the receiving end extracts the modulated signal from the electrical signal and restores it to the original voice signal.
[0003] The existing wireless intercom cannot allow the gas containing alcohol and toluene to enter the box, and cannot make intercom calls in the alcohol and toluene environment, and the explosion-proof effect is poor. Utility Model Content
[0004] In view of the problems in the prior art, the utility model provides an explosion-proof wireless intercom, which greatly improves the sealing performance of the box, and gases containing alcohol and toluene are not easy to enter the box, so that intercom calls can be made in an alcohol or toluene environment, achieving an explosion-proof effect.
[0005] The utility model solves the technical problem by adopting a technical solution of an explosion-proof wireless interphone, comprising a box body, a cooling cover and a sealed box cover, one end of the box body is connected to the cooling cover, a semiconductor refrigeration sheet is installed on the top of the cooling cover through a mounting hole, one side of the box body is connected to the sealed box cover through a hinge, an embedded sealing frame is bonded to the inner side of the sealed box cover, and an adsorption soft magnetic strip is arranged on the outer side of the embedded sealing frame;
[0006] A loud speaker is arranged at the other end of the box body, a mounting plate is arranged inside the box body and an audio amplifier is mounted on one side of the mounting plate through a mounting seat, a frequency modulator and a signal receiver are respectively mounted on both ends of the audio amplifier through screws, a demodulator is mounted on the lower end of the audio amplifier through screws, and a microphone is mounted on the sealed box cover through a mounting hole.
[0007] By adopting the above technical solution, the embedded sealing frame is embedded in the box, and the soft magnetic strip is adsorbed on the box, which greatly improves the sealing of the box. Gases containing alcohol and toluene are not easy to enter the box, so intercom calls can be made in the environment of alcohol and toluene, achieving an explosion-proof effect.
[0008] Specifically, the cooling end of the semiconductor refrigeration plate and the detection end of the temperature controller are both located in the cooling cover, and the output end of the temperature controller is electrically connected to the input end of the semiconductor refrigeration plate through a wire.
[0009] Specifically, the output end and the input end of the audio amplifier are electrically connected to the input end of the frequency modulator and the output end of the microphone through wires.
[0010] By adopting the above technical solution, the human voice is first converted into an analog electrical signal through a microphone, amplified by an audio amplifier to increase its power, and then frequency modulated by a frequency modulator.
[0011] Specifically, the output end and the input end of the demodulator are electrically connected to the input end of the loudspeaker and the output end of the signal receiver through wires.
[0012] By adopting the above technical solution and restoring to the original voice signal, the electrical signal output by the demodulator is sent to the loudspeaker and converted into a sound signal.
[0013] Specifically, one side of the top of the box body and the top of the speaker are both provided with mounting plates, and mounting holes are provided on the mounting plates.
[0014] Specifically, the embedded sealing frame is made of polyurethane elastic material.
[0015] Beneficial effects of the utility model:
[0016] In the explosion-proof wireless intercom described in the utility model, the temperature controller controls the semiconductor refrigeration sheet to perform constant temperature refrigeration in the box body, thereby improving the heat dissipation rate of the electronic components.
[0017] The explosion-proof wireless intercom described in the utility model utilizes an embedded sealing frame to be embedded into a box body, and a soft magnetic strip is adsorbed on the box body, thereby greatly improving the sealing performance of the box body, and alcohol and toluene gases are not easy to enter the box body, thereby realizing intercom calls in an alcohol and toluene environment, achieving an explosion-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the box of the utility model;
[0021] Figure 3 This is a schematic diagram of the microphone structure of the present utility model.
[0022] In the figure: 1. Cooling cover; 2. Temperature controller; 3. Semiconductor refrigeration plate; 4. Mounting plate; 5. Box body; 6. Sealed box cover; 7. Speaker; 8. Microphone; 9. Adsorption soft magnetic strip; 10. Embedded sealing frame; 11. Demodulator; 12. Mounting plate; 13. FM; 14. Audio amplifier; 15. Signal receiver. DETAILED DESCRIPTION
[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0024] In order to greatly improve the sealing performance of the box 5, the gas containing alcohol and toluene is not easy to enter the box 5, so that intercom calls can be made in the alcohol and toluene environment, and the explosion-proof effect can be achieved. Figure 1-3 As shown, the explosion-proof wireless intercom described in the utility model includes a box body 5, a cooling cover 1 and a sealed box cover 6, one end of the box body 5 is connected to the cooling cover 1, the top of the cooling cover 1 is installed with a semiconductor refrigeration sheet 3 through a mounting hole, one side of the box body 5 is connected to the sealed box cover 6 through a hinge, the inner side of the sealed box cover 6 is bonded with an embedded sealing frame 10 and the outer side of the embedded sealing frame 10 is provided with an adsorption soft magnetic strip 9;
[0025] A loud speaker 7 is provided at the other end of the box body 5, a mounting plate 12 is provided inside the box body 5, and an audio amplifier 14 is installed on one side of the mounting plate 12 through a mounting seat, a frequency modulator 13 and a signal receiver 15 are respectively installed at both ends of the audio amplifier 14 through screws, a demodulator 11 is installed at the lower end of the audio amplifier 14 through screws, and a microphone 8 is installed on the sealed box cover 6 through a mounting hole.
[0026] When in use, the embedded sealing frame 10 is embedded into the box body 5, and the soft magnetic strip 9 is adsorbed on the box body 5, which greatly improves the sealing of the box body 5. Gases containing alcohol and toluene are not easy to enter the box body 5, so that intercom calls can be made in an alcohol or toluene environment, achieving an explosion-proof effect.
[0027] For example, Figure 1 As shown, the utility model also includes that the cooling end of the semiconductor cooling plate 3 and the detection end of the temperature controller 2 are both located in the cooling cover 1, and the output end of the temperature controller 2 is electrically connected to the input end of the semiconductor cooling plate 3 through a wire.
[0028] When in use, the temperature controller 2 controls the semiconductor cooling chip 3 to cool the box body 5 at a constant temperature, thereby improving the heat dissipation rate of the electronic components.
[0029] For example, Figure 2As shown, the utility model also includes that the output end and the input end of the audio amplifier 14 are electrically connected to the input end of the frequency modulator 13 and the output end of the microphone 8 through wires.
[0030] When in use, the human voice is first converted into an analog electrical signal by the microphone 8 , amplified by the audio amplifier 14 to increase its power, and then frequency modulated by the frequency modulator 13 .
[0031] For example, Figure 1 , 2 As shown, the utility model also includes that the output end and the input end of the demodulator 11 are electrically connected to the input end of the loudspeaker 7 and the output end of the signal receiver 15 through wires.
[0032] When in use, the electrical signal output by the demodulator 11 is sent to the speaker 7 and converted into a sound signal and restored to the original voice signal.
[0033] For example, Figure 1 As shown, the utility model also includes that a mounting plate 4 is provided on one side of the top of the box body 5 and the top of the speaker 7, and a mounting hole is provided on the mounting plate 4.
[0034] When in use, the box body 5 and the loudspeaker 7 are conveniently installed and fixed by using the mounting holes on the mounting plate 4 and the matching bolts.
[0035] For example, Figure 2 As shown, the utility model also includes that the embedded sealing frame 10 is specifically made of polyurethane elastic material.
[0036] When in use, the embedded sealing frame 10 has high elasticity and good close contact effect, which greatly improves the sealing performance of the box body 5.
[0037] When the utility model is used, the mounting holes on the mounting plate 4 and the matching bolts are used to easily mount and fix the box 5 and the speaker 7. First, the human voice is converted into an analog electrical signal through the microphone 8, and amplified through the audio amplifier 14 to increase its power;
[0038] Then the frequency is modulated by the frequency modulator 13, and the modulated electrical signal is sent to the signal receiver 15 and transmitted through the antenna. The antenna converts the electrical signal into radio waves. The antenna on the receiving side receives the radio waves and converts them into electrical signals.
[0039] The demodulator 11 in the receiving side extracts the modulated signal from the electrical signal and restores it to the original voice signal. The electrical signal output by the demodulator 11 is sent to the speaker 7 and converted into a sound signal.
[0040] The thermostat 2 controls the semiconductor refrigeration chip 3 to maintain constant temperature in the box 5, thereby improving the heat dissipation rate of the electronic components. The embedded sealing frame 10 is embedded in the box 5, and the soft magnetic strip 9 is adsorbed on the box 5, which greatly improves the sealing of the box 5. Alcohol and toluene gases are not easy to enter the box 5, so that intercom calls can be made in the alcohol and toluene environment, achieving an explosion-proof effect.
[0041] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. Explosion-proof wireless intercom, characterized by: The invention comprises a box body (5), a cooling cover (1) and a sealed box cover (6), wherein one end of the box body (5) is connected to the cooling cover (1), a semiconductor cooling plate (3) is installed on the top of the cooling cover (1) through a mounting hole, one side of the box body (5) is connected to the sealed box cover (6) through a hinge, an embedded sealing frame (10) is bonded to the inner side of the sealed box cover (6), and an adsorbing soft magnetic strip (9) is arranged on the outer side of the embedded sealing frame (10); A loudspeaker (7) is arranged at the other end of the box (5), a mounting plate (12) is arranged inside the box (5), and an audio amplifier (14) is mounted on one side of the mounting plate (12) via a mounting seat, a frequency modulator (13) and a signal receiver (15) are respectively mounted on the two ends of the audio amplifier (14) via screws, a demodulator (11) is mounted on the lower end of the audio amplifier (14) via screws, and a microphone (8) is mounted on the sealed box cover (6) via a mounting hole.
2. The explosion-proof wireless intercom according to claim 1, characterized in that: The cooling end of the semiconductor cooling plate (3) and the detection end of the temperature controller (2) are both located in the cooling cover (1), and the output end of the temperature controller (2) is electrically connected to the input end of the semiconductor cooling plate (3) via a wire.
3. The explosion-proof wireless intercom according to claim 1, characterized in that: The output end and the input end of the audio amplifier (14) are electrically connected to the input end of the frequency modulator (13) and the output end of the microphone (8) respectively through wires.
4. The explosion-proof wireless intercom according to claim 1, characterized in that: The output end and the input end of the demodulator (11) are electrically connected to the input end of the loudspeaker (7) and the output end of the signal receiver (15) respectively through wires.
5. The explosion-proof wireless intercom according to claim 1, characterized in that: A mounting plate (4) is provided on one side of the top of the box body (5) and on the top of the speaker (7), and a mounting hole is provided on the mounting plate (4).
6. The explosion-proof wireless intercom according to claim 1, characterized in that: The embedded sealing frame (10) is specifically made of polyurethane elastic material.