Welding protection device for printed circuit board

Abstract

The utility model discloses a printed circuit board welding protection device which comprises a base and a fan cover, an air draft assembly is installed on the fan cover, the air draft assembly comprises an air duct and a fan, a purification assembly is installed on the inner side of the air duct and comprises a filter screen and activated carbon, an illumination assembly is installed on the inner side of the fan cover, and the fan cover is installed on the base. The lighting assembly comprises a lighting lamp and a wiping plate, the top of the fan cover is provided with a pushing assembly, the pushing assembly comprises a supporting sleeve and an electromagnet, the printed circuit board welding protection device can prevent smoke from drifting away, the health and safety of personnel are effectively guaranteed, the air environment safety is also protected, dirt on the lighting lamp can be automatically wiped away, and the practicability is high. And when the temperature on the circuit board is high, personnel are automatically prompted to stop welding work, damage to the circuit board due to the high welding temperature is avoided, welding safety of the circuit board is guaranteed, and the circuit board welding protection device is suitable for welding protection of the printed circuit board.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit board welding protection equipment, in particular to a printed circuit board welding protection device. Background Art

[0002] In order to ensure the welding safety of printed circuit boards, it is often necessary to use printed circuit board welding protection equipment. The utility model patent with patent application number CN202021993511.5 discloses a circuit board welding protection device. By fixing the motor at the bottom of the second connecting net of the fixing mechanism, the fan blades on the output end of the motor drive the hot air to leave the electronic circuit board to prevent the electronic circuit board from being overheated due to untimely heat dissipation, thereby damaging the circuit board and causing unnecessary waste. A welding hole is opened on the top cover to facilitate pressing the circuit board and allowing the welding head to enter and weld the circuit board to solve the problems raised in the above background technology. According to the technical solution disclosed by the utility model, when the existing printed circuit board welding protection device is used, on the one hand, a large amount of smoke is easily generated during welding work, which is not conducive to the monitoring of protection personnel and environmental safety. In addition, during welding work, it is easy to be unfavorable to ensure the welding sight due to light and shadow, and it is inconvenient to perform welding work. On the other hand, during welding work, it is often only possible to dissipate heat for the circuit board. Once the heat dissipation efficiency is insufficient, it is easy to cause damage to the circuit board, which is not conducive to ensuring the safety of the circuit board.

[0003] Therefore, how to design a printed circuit board welding protection device has become our current problem to be solved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a printed circuit board welding protection device to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable design and is convenient to use, and is suitable for use in welding protection of printed circuit boards.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a printed circuit board welding protection device, comprising a base and a hood, an exhaust assembly is installed on the hood, the exhaust assembly includes a wind tube and a fan, a purification assembly is installed on the inner side of the wind tube, the purification assembly includes a filter and activated carbon, a lighting assembly is installed on the inner side of the hood, the lighting assembly includes a lighting lamp and a wiper, a pushing assembly is installed on the top of the hood, the pushing assembly includes a support sleeve and an electromagnet, a temperature control assembly is installed on the base, the temperature control assembly includes a sleeve and a piston, an alarm assembly is installed on the sleeve and the hood, and the alarm assembly includes a button and an electric bell.

[0006] Furthermore, the wind hood is welded to the top of one side of the base, the wind tube is welded to one side of the wind hood, the fan is installed on the inner side of one end of the wind tube by bolts, the filter is welded to the inner wall of the other end of the wind tube, and the activated carbon is stuck on the inner side of the wind tube.

[0007] Furthermore, the lighting lamps are respectively mounted on both sides and the top of the wind shield by bolts, and the wiper plates are respectively clamped on the inner walls of both sides and the top of the wind shield.

[0008] Furthermore, the support sleeve is welded to the top of one side of the wind hood, a guide rod is welded to the electromagnet, the guide rod passes through the support sleeve and the wind hood and is welded to the wiper plate, and the electromagnet is connected to the inner wall of the support sleeve through a spring.

[0009] Furthermore, the sleeve is welded to the inner side of the base, the bottom of the sleeve extends to the bottom of the base, and the bottom of the sleeve is connected to the outside.

[0010] Furthermore, the outer side of the piston is clamped on the inner wall of the sleeve, and the bottom of the piston is connected to the inner wall of the bottom of the sleeve through spring 2.

[0011] Furthermore, the button is mounted on the inner wall of the bottom of the sleeve by bolts, and the electric bell is mounted on the outer side of the wind shield by bolts.

[0012] Furthermore, a travel switch is installed on the inner side of the support sleeve by bolts, a switch group is installed on the wind cover by bolts, the switch group is connected to the travel switch, button, fan and lighting lamp by wires, the travel switch is connected to the electromagnet by wires, and the button is connected to the electric bell by wires.

[0013] Beneficial effects: 1. When the printed circuit board welding protection device is in use, the fan works in the wind tube, and generates suction on the welding point through the wind hood, sucks the smoke generated by the welding work into the inner side of the wind tube, and then filters out the smoke through the filter, and purifies and adsorbs the harmful gas through the activated carbon to prevent the smoke from drifting, which not only effectively protects the health and safety of personnel, but also protects the safety of the air environment. The lighting lamps on the top and both sides of the wind hood form shadowless lighting, effectively ensuring the brightness of the welding point and the welding line of sight. When dirt is attached to the lighting lamp, the electromagnet is turned on, and the electromagnet is energized to generate suction, so that the electromagnet compression spring drives the wiper to move, and the wiper is used to clean the lighting lamp. At the same time, the travel switch is used to control the frequent power on and off of the electromagnet, so as to wipe off the dirt on the lighting lamp and ensure the lighting brightness.

[0014] 2. When the printed circuit board welding protection device is in use, the circuit board is placed on the base and the welding point is moved to the top of the sleeve. When the circuit board is welding, the welding heat is conducted to the inside of the sleeve through the circuit board, and the air in the sleeve expands to compress the piston downward to move the spring. When the temperature on the circuit board is high and the suction force generated by the fan is not enough to lower the temperature, the piston in the sleeve is pushed downward to the button, and the button turns on the electric bell to remind the personnel to stop the welding work, avoid damage to the circuit board due to the high welding temperature, and ensure the welding safety of the circuit board.

[0015] 3. The printed circuit board welding protection device is reasonably designed, more efficient and convenient to use, and is suitable for welding protection of printed circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a printed circuit board welding protection device of the utility model;

[0017] Figure 2 This is a cross-sectional view of a printed circuit board welding protection device of the utility model;

[0018] Figure 3 It is a cross-sectional view of a sleeve of a printed circuit board welding protection device of the utility model;

[0019] In the figure: 1. base; 2. wind hood; 3. air cylinder; 4. fan; 5. filter; 6. activated carbon; 7. lighting lamp; 8. wiper; 9. support sleeve; 10. electromagnet; 11. spring 1; 12. travel switch; 13. sleeve; 14. piston; 15. spring 2; 16. button; 17. switch group; 18. doorbell. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 3The utility model provides a technical solution: a printed circuit board welding protection device, comprising a base 1 and a hood 2, an exhaust assembly is installed on the hood 2, the exhaust assembly includes a wind tube 3 and a fan 4, a purification assembly is installed on the inner side of the wind tube 3, the purification assembly includes a filter 5 and activated carbon 6, a lighting assembly is installed on the inner side of the hood 2, the lighting assembly includes a lighting lamp 7 and a wiper 8, a pushing assembly is installed on the top of the hood 2, the pushing assembly includes a support sleeve 9 and an electromagnet 10, a temperature control assembly is installed on the base 1, the temperature control assembly includes a sleeve 13 and a piston 14, an alarm assembly is installed on the sleeve 13 and the hood 2, the alarm assembly includes a button 16 and an electric bell 18, the sleeve 13 is welded to the inner side of the base 1, the bottom of the sleeve 13 extends to the bottom of the base 1, the bottom of the sleeve 13 is connected to the outside, the active The outer side of the plug 14 is stuck on the inner wall of the sleeve 13, and the bottom of the piston 14 is connected to the inner wall of the bottom of the sleeve 13 through the spring 15. The button 16 is installed on the inner wall of the bottom of the sleeve 13 by bolts, and the electric bell 18 is installed on the outer side of the wind cover 2 by bolts. When in use, the circuit board is placed on the base 1 and the welding point is moved to the top of the sleeve 13. When the circuit board is welded, the welding heat is conducted to the inner side of the sleeve 13 through the circuit board. The air in the sleeve 13 expands and compresses the piston 14 downward to move the spring 15. When the temperature on the circuit board is high and the suction force generated by the fan 4 is not enough to lower the temperature, the piston 14 in the sleeve 13 is pushed downward to the button 16, and the button 16 turns on the electric bell 18 to remind personnel to stop welding work, avoid damage to the circuit board due to the high welding temperature, and ensure the welding safety of the circuit board.

[0022] In this embodiment, the wind hood 2 is welded to the top of one side of the base 1, the wind tube 3 is welded to one side of the wind hood 2, the fan 4 is installed on the inner side of one end of the wind tube 3 by bolts, the filter 5 is welded to the inner wall of the other end of the wind tube 3, the activated carbon 6 is stuck on the inner side of the wind tube 3, the lighting lamp 7 is respectively installed on the two sides and the top of the wind hood 2 by bolts, the wiper plate 8 is respectively stuck on the inner walls of the two sides and the top of the wind hood 2, the support sleeve 9 is welded to the top of one side of the wind hood 2, a guide rod is welded on the electromagnet 10, the guide rod passes through the support sleeve 9 and the wind hood 2 and is welded to the wiper plate 8, the electromagnet 10 is connected to the inner wall of the support sleeve 9 by a spring 11, a travel switch 12 is installed on the inner side of the support sleeve 9 by bolts, a switch group 17 is installed on the wind hood 2 by bolts, the switch group 17 is connected to the travel switch 12, the button 16, the fan 4 and the lighting lamp 7 by wires, the travel switch 12 It is connected to the electromagnet 10 through an electric wire, and the button 16 is connected to the electric bell 18 through an electric wire. When in use, the fan 4 works in the wind tube 3, and generates suction on the welding point through the wind hood 2, so that the smoke generated by the welding work is sucked into the inner side of the wind tube 3, and then the smoke is filtered out through the filter 5, and the harmful gas is purified and adsorbed through the activated carbon 6 to prevent the smoke from drifting, which can effectively protect the health and safety of personnel and protect the safety of the air environment. The lighting lamps 7 on the top and both sides of the wind hood 2 are used to form shadowless lighting, which effectively guarantees the brightness of the welding point and the welding sight. When dirt is attached to the lighting lamp 7, the electromagnet 10 is turned on and the electromagnet 10 is energized to generate suction, so that the electromagnet 10 compresses the spring 11 and drives the wiping plate 8 to move, and the wiping plate 8 is used to clean the lighting lamp 7. At the same time, the travel switch 12 is used to control the frequent power on and power off of the electromagnet 10, so as to wipe off the dirt on the lighting lamp 7 and ensure the lighting brightness.

[0023] The printed circuit board welding protection device provides power to all electrical equipment through an external power supply. When in use, the circuit board is placed on the base 1, and the welding point is moved to the top of the sleeve 13. When the circuit board is welding, the welding heat is conducted to the inner side of the sleeve 13 through the circuit board, and the air in the sleeve 13 expands to compress the piston 14 downward to move the spring 15. When the temperature on the circuit board is high and the suction force generated by the fan 4 is not enough to reduce the temperature, the piston 14 in the sleeve 13 is pushed downward to the button 16, and the button 16 turns on the bell 18 to remind the personnel to stop the welding work, so as to avoid damage to the circuit board due to the high welding temperature and ensure the welding safety of the circuit board. The fan 4 works in the wind tube 3 and produces a pressure drop on the welding point through the wind cover 2. Generate suction, suck the fume generated by the welding work into the inner side of the wind tube 3, then filter out the smoke through the filter 5, and purify and adsorb the harmful gas through the activated carbon 6 to prevent the fume from drifting, which can effectively protect the health and safety of personnel and the safety of the air environment. The lighting lamps 7 on the top and both sides of the wind hood 2 form shadowless lighting, effectively ensure the brightness of the welding place and the welding sight. When dirt is attached to the lighting lamp 7, turn on the electromagnet 10, and the electromagnet 10 is energized to generate suction, so that the electromagnet 10 compresses the spring 11 and drives the wiping plate 8 to move, and the wiping plate 8 is used to clean the lighting lamp 7. At the same time, the travel switch 12 is used to control the frequent power on and power off of the electromagnet 10, so as to wipe off the dirt on the lighting lamp 7 and ensure the lighting brightness.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A printed circuit board welding protection device, comprising a base (1) and a wind shield (2), wherein an exhaust assembly is mounted on the wind shield (2), wherein the exhaust assembly comprises a wind tube (3) and a fan (4), wherein: A purification component is installed on the inner side of the wind tube (3), and the purification component includes a filter (5) and activated carbon (6). A lighting component is installed on the inner side of the wind hood (2), and the lighting component includes a lighting lamp (7) and a wiper (8). A pushing component is installed on the top of the wind hood (2), and the pushing component includes a support sleeve (9) and an electromagnet (10). A temperature control component is installed on the base (1), and the temperature control component includes a sleeve (13) and a piston (14). An alarm component is installed on the sleeve (13) and the wind hood (2), and the alarm component includes a button (16) and an electric bell (18).

2. A printed circuit board welding protection device according to claim 1, characterized in that: The wind cover (2) is welded to the top of one side of the base (1), the wind tube (3) is welded to one side of the wind cover (2), the fan (4) is installed on the inner side of one end of the wind tube (3) by bolts, the filter (5) is welded to the inner wall of the other end of the wind tube (3), and the activated carbon (6) is stuck on the inner side of the wind tube (3).

3. A printed circuit board welding protection device according to claim 2, characterized in that: The lighting lamps (7) are respectively mounted on the two sides and the top of the wind shield (2) by means of bolts, and the wiper plates (8) are respectively clamped on the inner walls of the two sides and the top of the wind shield (2).

4. A printed circuit board welding protection device according to claim 3, characterized in that: The support sleeve (9) is welded to the top of one side of the wind cover (2); a guide rod is welded to the electromagnet (10); the guide rod passes through the support sleeve (9) and the wind cover (2) and is welded to the wiper plate (8); the electromagnet (10) is connected to the inner wall of the support sleeve (9) via a spring 1 (11).

5. A printed circuit board welding protection device according to claim 1, characterized in that: The sleeve (13) is welded to the inner side of the base (1), the bottom of the sleeve (13) extends to the bottom of the base (1), and the bottom of the sleeve (13) is connected to the outside.

6. A printed circuit board welding protection device according to claim 5, characterized in that: The outer side of the piston (14) is clamped on the inner wall of the sleeve (13), and the bottom of the piston (14) is connected to the inner wall of the bottom of the sleeve (13) through a second spring (15).

7. A printed circuit board welding protection device according to claim 6, characterized in that: The button (16) is mounted on the inner wall of the bottom of the sleeve (13) by means of bolts, and the electric bell (18) is mounted on the outer side of the wind shield (2) by means of bolts.

8. A printed circuit board welding protection device according to claim 7, characterized in that: A travel switch (12) is installed on the inner side of the support sleeve (9) by means of bolts, a switch group (17) is installed on the wind cover (2) by means of bolts, the switch group (17) is connected to the travel switch (12), the button (16), the fan (4) and the lighting lamp (7) by means of wires, the travel switch (12) is connected to the electromagnet (10) by means of wires, and the button (16) is connected to the electric bell (18) by means of wires.

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