Built-in fire extinguishing system of wave soldering equipment

Abstract

The utility model provides a built-in fire extinguishing system of wave soldering equipment, which comprises a fire extinguishing assembly, the fire extinguishing assembly comprises a rack, a casing, a mounting hole, a shunting tank, a fire extinguishing branch pipe, a tee joint, a fire extinguishing main pipe, a carbon dioxide storage tank, a spray pipe, a spray head and a smoke sensor; a machine shell is fixedly connected to the outer side of the upper surface of the rack, and mounting holes are formed in the two sides of the upper surface of the machine shell. According to the utility model, the fire extinguishing system is arranged in the wave-soldering equipment, so that the fire can be detected in time at the initial stage of the fire and a fire extinguishing program can be quickly started, the response time is greatly shortened, the fire extinguishing operation is performed when the fire just occurs, and the initial fire extinguishing effect is good; and meanwhile, a detection mode of combining the temperature sensor and the smoke sensor is adopted, so that the accuracy and reliability of fire detection are improved, fire hazards can be found more timely and accurately, a fire extinguishing program is started immediately once abnormity is found, a guarantee is provided for rapid fire extinguishing, and higher initiative and preventive performance are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wave soldering equipment, in particular to a built-in fire protection system for wave soldering equipment. Background Art

[0002] Wave soldering, a crucial piece of equipment in the electronics manufacturing process, works by directly contacting the soldering surface of a plug-in board with hot liquid tin. During the manufacturing process, various electronic components are typically mounted on the board. Wave soldering creates a reliable electrical connection between the component pins and the board's pads by immersing the board's soldering surface in hot liquid tin. However, the use of wave soldering can pose a serious risk of fire accidents due to high temperatures and electrical failures, posing a serious threat to production safety.

[0003] At present, although there are some fire-fighting equipment outside the wave soldering equipment that can extinguish fires in the event of a fire, these devices often have a long response time and cannot extinguish fires in a timely and effective manner in the early stages of a fire, which can easily lead to the expansion of the fire and cause greater losses. Therefore, a built-in fire-fighting system for wave soldering equipment is proposed. Utility Model Content

[0004] In view of this, the present invention hopes to provide a built-in fire protection system for wave soldering equipment to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0005] The technical solution of the embodiment of the utility model is achieved as follows: a built-in fire protection system for wave soldering equipment includes a fire extinguishing assembly, wherein the fire extinguishing assembly includes a frame, a housing, a mounting hole, a diversion tank, a fire extinguishing branch pipe, a tee, a fire extinguishing main pipe, a carbon dioxide storage tank, a nozzle, a nozzle, a solenoid valve, a controller, a temperature sensor, and a smoke sensor;

[0006] The outer side of the upper surface of the frame is fixedly connected to the organic shell, and mounting holes are opened on both sides of the upper surface of the shell, and the inner walls of the two mounting holes are fixedly connected to the diversion tanks, and the rear centers of the outer walls of the two diversion tanks are connected with fire extinguishing branch pipes, and the ends of the two fire extinguishing branch pipes away from the diversion tanks are connected to the fire extinguishing main pipe through a tee, and the end of the fire extinguishing main pipe away from the tee is connected to the carbon dioxide storage tank, and the centers of the lower surface and upper surface of the diversion tank are connected with nozzles, and the ends away from each other of the two nozzles are equipped with nozzles, and a solenoid valve is installed in the middle of the outer wall of the nozzle, and a controller is fixedly connected to the middle of the front surface of the shell, and the input end of the solenoid valve is electrically connected to the output end of the controller, and a temperature sensor and a smoke sensor are respectively installed on both sides of the center of the inner top wall of the shell, and the output ends of the temperature sensor and the smoke sensor are electrically connected to the input end of the controller.

[0007] Further preferably, a pressure sensor is installed at one end of the outer wall of the fire extinguishing main pipe close to the carbon dioxide storage tank, and the output end of the pressure sensor is electrically connected to the input end of the controller.

[0008] Further preferably, an electric cylinder is fixedly connected to the outside of the bottom center of the carbon dioxide storage tank, a pressure plate is slidably connected to the inner wall of the carbon dioxide storage tank, the output end of the electric cylinder is fixedly connected to the center of the lower surface of the pressure plate, and the input end of the electric cylinder is electrically connected to the output end of the controller.

[0009] Further preferably, a plurality of sealing grooves are opened in the middle of the outer side wall of the pressure plate, a sealing ring is fixedly connected to the inner side wall of the sealing groove, and the outer side wall of the sealing ring is slidably connected to the inner side wall of the carbon dioxide storage tank.

[0010] Further preferably, sound and light alarms are fixedly connected to the tops of both sides of the housing, and the input ends of the sound and light alarms are electrically connected to the output ends of the controller.

[0011] Further preferably, a bracket is fixedly connected to the middle of the rear surface of the casing, a through hole is opened in the middle of the upper surface of the bracket, and the middle of the outer wall of the carbon dioxide storage tank is fixedly connected to the inner wall of the through hole.

[0012] Further preferably, a touch screen is provided on the front surface of the controller.

[0013] Further preferably, windows are provided on both sides of the front surface of the housing, and glass observation windows are hinged to the inner top walls of the windows.

[0014] The embodiment of the present invention has the following advantages due to the adoption of the above technical solution:

[0015] The utility model has a built-in fire protection system inside the wave soldering equipment, which can detect fire in time at the early stage of fire and quickly start the fire extinguishing program, greatly shortening the response time. The fire extinguishing operation is carried out when the fire just occurs, and the early fire extinguishing effect is good. At the same time, the detection method combining temperature sensor and smoke sensor is adopted to improve the accuracy and reliability of fire detection, and can detect fire hazards more timely and accurately. Once an abnormality is found, the fire extinguishing program is immediately started, providing guarantee for rapid fire extinguishing, with higher initiative and preventiveness.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a structural diagram from one perspective of the present utility model;

[0019] Figure 2 This is a structural diagram from another perspective of the present utility model;

[0020] Figure 3 This is a structural diagram of the temperature sensor and smoke sensor of the present utility model;

[0021] Figure 4 This is a cross-sectional structural diagram of the carbon dioxide storage tank of the present invention.

[0022] Figure numerals: 1. Fire extinguishing assembly; 11. Frame; 12. Casing; 13. Mounting hole; 14. Diversion tank; 15. Fire extinguishing branch pipe; 16. Tee; 17. Fire extinguishing main pipe; 18. Carbon dioxide storage tank; 19. Nozzle; 20. Nozzle; 21. Solenoid valve; 22. Controller; 23. Temperature sensor; 24. Smoke sensor; 25. Pressure sensor; 26. Electric cylinder; 27. Pressure plate; 28. Sealing groove; 29. ​​Sealing ring; 30. Sound and light alarm; 31. Bracket; 32. Through hole; 33. Touch screen; 34. Window; 35. Glass observation window. DETAILED DESCRIPTION

[0023] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0024] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-Figure 4 As shown, the embodiment of the present invention provides a built-in fire protection system for wave soldering equipment, including a fire extinguishing assembly 1, which includes a frame 11, a housing 12, a mounting hole 13, a diversion tank 14, a fire extinguishing branch pipe 15, a tee 16, a fire extinguishing main pipe 17, a carbon dioxide storage tank 18, a nozzle 19, a nozzle 20, a solenoid valve 21, a controller 22, a temperature sensor 23, and a smoke sensor 24;

[0026] The outer side of the upper surface of the frame 11 is fixedly connected to the casing 12, and mounting holes 13 are provided on both sides of the upper surface of the casing 12. The inner side walls of the two mounting holes 13 are fixedly connected to the diversion tank 14, and the rear center of the outer side wall of the two diversion tanks 14 are connected with a fire extinguishing branch pipe 15. The end of the two fire extinguishing branch pipes 15 away from the diversion tank 14 is connected to the fire extinguishing main pipe 17 through a tee 16, and the end of the fire extinguishing main pipe 17 away from the tee 16 is connected to a carbon dioxide storage tank 18. The lower surface and the center of the upper surface of the diversion tank 14 are connected with a nozzle 19. The ends away from each other are installed with a nozzle 20, and the middle of the outer side wall of the nozzle 19 is installed with a solenoid valve 21. The middle of the front surface of the casing 12 is fixedly connected to the outer side wall of the casing 12. It is connected to a controller 22, and the input end of the solenoid valve 21 is electrically connected to the output end of the controller 22. A temperature sensor 23 and a smoke sensor 24 are respectively installed on both sides of the center of the inner top wall of the casing 12. The output ends of the temperature sensor 23 and the smoke sensor 24 are electrically connected to the input end of the controller 22. The temperature sensor 23 and the smoke sensor 24 are convenient for real-time monitoring of the temperature change agent smoke changes inside the casing 12. By utilizing the carbon dioxide in the carbon dioxide storage tank 18 to extinguish the fire, not only is the fire extinguishing efficiency high, but the carbon dioxide fire extinguishing agent also has the advantages of being non-conductive and pollution-free. It is very suitable for fire extinguishing inside wave soldering equipment, and can quickly reduce the oxygen concentration in the equipment and suppress the development of fire.

[0027] In one embodiment, specifically: a pressure sensor 25 is installed on one end of the outer wall of the fire extinguishing main pipe 17 close to the carbon dioxide storage tank 18, and the output end of the pressure sensor 25 is electrically connected to the input end of the controller 22. The pressure sensor 25 facilitates real-time monitoring of the pressure inside the fire extinguishing main pipe 17.

[0028] In one embodiment, specifically: an electric cylinder 26 is fixedly connected to the outside of the bottom center of the carbon dioxide storage tank 18, and a pressure plate 27 is slidably connected to the inner wall of the carbon dioxide storage tank 18. The output end of the electric cylinder 26 is fixedly connected to the center of the lower surface of the pressure plate 27, and the input end of the electric cylinder 26 is electrically connected to the output end of the controller 22. The pressure plate 27 is pushed upward by the electric cylinder 26, thereby pressurizing the carbon dioxide fire extinguishing agent inside the carbon dioxide storage tank 18.

[0029] In one embodiment, specifically: a plurality of sealing grooves 28 are opened in the middle of the outer wall of the pressure plate 27, and a sealing ring 29 is fixedly connected to the inner wall of the sealing groove 28. The outer wall of the sealing ring 29 is slidably connected to the inner wall of the carbon dioxide storage tank 18. The sealing of the sealing ring 29 prevents the carbon dioxide fire extinguishing agent in the carbon dioxide storage tank 18 from leaking.

[0030] In one embodiment, specifically: an audible and visual alarm 30 is fixedly connected to the top of both sides of the casing 12, and the input end of the audible and visual alarm 30 is electrically connected to the output end of the controller 22. The audible and visual alarm 30 emits a buzzing alarm sound and flashing lights to remind the staff that a fire has occurred in the equipment.

[0031] In one embodiment, specifically: a bracket 31 is fixedly connected to the middle of the rear surface of the casing 12, a through hole 32 is opened in the middle of the upper surface of the bracket 31, and the middle of the outer wall of the carbon dioxide storage tank 18 is fixedly connected to the inner wall of the through hole 32. The carbon dioxide storage tank 18 is supported and fixed by the bracket 31, thereby increasing the stability of the carbon dioxide storage tank 18.

[0032] In one embodiment, specifically: a touch screen 33 is provided on the front surface of the controller 22, and the touch screen 33 is used to facilitate viewing the working status of the fire protection system and operating the fire protection system.

[0033] In one embodiment, specifically: windows 34 are provided on both sides of the front surface of the housing 12, and a glass observation window 35 is hinged on the inner top wall of the window 34. The glass observation window 35 is used to facilitate observation of the internal situation of the device, and opening the glass observation window 35 facilitates repair and maintenance of the internal equipment.

[0034] When the utility model is working: when no fire occurs, the entire fire protection system is in a standby state, and the temperature sensor 23 and the smoke sensor 24 continuously monitor the environment inside the wave soldering equipment. When a fire hazard occurs inside the wave soldering equipment due to various reasons, the temperature sensor 23 detects that the temperature inside the equipment exceeds the set temperature threshold, or the smoke sensor 24 detects that the smoke concentration inside the equipment exceeds the set smoke concentration threshold, the temperature sensor 23 and the smoke sensor 24 transmit the fire signal to the controller 22. After receiving the fire signal, the controller 22 immediately responds. First, the controller 22 starts the sound and light alarm 30, and sends out a sound and light alarm to remind the staff that the equipment has a fire. At the same time, the controller 22 opens the solenoid valve 21 on the nozzle 19, so that the carbon dioxide fire extinguishing agent is sprayed from the diversion tank 14 through the nozzle 19 from the nozzle 20, and a part of the carbon dioxide fire extinguishing agent is sprayed out from the diversion tank 14 through the nozzle 19 from the nozzle 20. Carbon fire extinguishing agent is sprayed inside the casing 12 to extinguish the fire, and at the same time, another part of carbon dioxide fire extinguishing agent is sprayed outside the casing 12 through a specific pipe or device to suppress the possible fire source outside the casing 12. During the spraying of the carbon dioxide fire extinguishing agent, the controller 22 judges the pressure situation in the fire extinguishing main pipe 17 based on the pressure data fed back by the pressure sensor 25. If the pressure is insufficient, the controller 22 starts the electric cylinder 26 to push the pressure plate 27 to move upward in the carbon dioxide storage tank 18, and pressurizes the carbon dioxide fire extinguishing agent in the carbon dioxide storage tank 18 to ensure that there is sufficient pressure to spray the carbon dioxide fire extinguishing agent during the fire extinguishing process. The carbon dioxide sprayed from the nozzle 20 quickly diffuses inside the wave soldering equipment and outside the casing 12, and uses the fire extinguishing characteristics of carbon dioxide to reduce the oxygen concentration inside and outside the equipment, suppress the continued development of the fire, and achieve the purpose of fire extinguishing.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. A wave soldering equipment with a built-in fire protection system, characterized by: The fire extinguishing assembly (1) includes a frame (11), a housing (12), a mounting hole (13), a diversion tank (14), a fire extinguishing branch pipe (15), a tee (16), a fire extinguishing main pipe (17), a carbon dioxide storage tank (18), a nozzle (19), a nozzle (20), a solenoid valve (21), a controller (22), a temperature sensor (23), and a smoke sensor (24); The outer side of the upper surface of the frame (11) is fixedly connected to a housing (12), and mounting holes (13) are provided on both sides of the upper surface of the housing (12). The inner side walls of the two mounting holes (13) are fixedly connected to a diversion tank (14). The rear centers of the outer side walls of the two diversion tanks (14) are connected to a fire extinguishing branch pipe (15). One end of the two fire extinguishing branch pipes (15) away from the diversion tank (14) is connected to a fire extinguishing main pipe (17) through a tee (16). One end of the fire extinguishing main pipe (17) away from the tee (16) is connected to a carbon dioxide storage tank (18). The lower surface and upper side of the diversion tank (14) are connected to the fire extinguishing main pipe (17). The center of each surface is connected to a nozzle (19), and a nozzle (20) is installed at the end away from each other of the two nozzles (19). A solenoid valve (21) is installed in the middle of the outer wall of the nozzle (19). A controller (22) is fixedly connected to the middle of the front surface of the housing (12), and the input end of the solenoid valve (21) is electrically connected to the output end of the controller (22). A temperature sensor (23) and a smoke sensor (24) are respectively installed on both sides of the center of the inner top wall of the housing (12), and the output ends of the temperature sensor (23) and the smoke sensor (24) are electrically connected to the input end of the controller (22).

2. A built-in fire protection system for wave soldering equipment according to claim 1, characterized in that: A pressure sensor (25) is installed at one end of the outer wall of the fire extinguishing main pipe (17) close to the carbon dioxide storage tank (18), and the output end of the pressure sensor (25) is electrically connected to the input end of the controller (22).

3. A built-in fire protection system for wave soldering equipment according to claim 2, characterized in that: An electric cylinder (26) is fixedly connected to the outer side of the bottom center of the carbon dioxide storage tank (18), and a pressure plate (27) is slidably connected to the inner wall of the carbon dioxide storage tank (18). The output end of the electric cylinder (26) is fixedly connected to the center of the lower surface of the pressure plate (27), and the input end of the electric cylinder (26) is electrically connected to the output end of the controller (22).

4. A built-in fire protection system for wave soldering equipment according to claim 3, characterized in that: A plurality of sealing grooves (28) are provided in the middle of the outer wall of the pressure plate (27), a sealing ring (29) is fixedly connected to the inner wall of the sealing groove (28), and the outer wall of the sealing ring (29) is slidably connected to the inner wall of the carbon dioxide storage tank (18).

5. The built-in fire protection system for wave soldering equipment according to claim 1, characterized in that: The tops of both sides of the housing (12) are fixedly connected with sound and light alarms (30), and the input end of the sound and light alarm (30) is electrically connected to the output end of the controller (22).

6. The built-in fire protection system for wave soldering equipment according to claim 1, characterized in that: A bracket (31) is fixedly connected to the middle of the rear surface of the housing (12), a through hole (32) is opened in the middle of the upper surface of the bracket (31), and the middle of the outer wall of the carbon dioxide storage tank (18) is fixedly connected to the inner wall of the through hole (32).

7. The built-in fire protection system for wave soldering equipment according to claim 5, characterized in that: The front surface of the controller (22) is provided with a touch screen (33).

8. The built-in fire protection system for wave soldering equipment according to claim 1, characterized in that: Windows (34) are provided on both sides of the front surface of the housing (12), and a glass observation window (35) is hingedly connected to the inner top wall of the window (34).

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