An energy storage welding power supply based on a rechargeable battery pack

Abstract

The present invention discloses an energy storage welding power supply based on a rechargeable battery pack, belonging to the technical field of welding power supplies. The power supply comprises a welding power supply housing, inside which a rechargeable battery pack, an intelligent charger, a power supply body, and a temperature sensor are arranged; an air inlet and an air outlet are provided on the welding power supply housing, and a purification mechanism is provided inside the welding power supply housing; a ventilation duct opening at one end faces the air inlet, and a shielding assembly is provided between the ventilation duct opening and the air inlet; and a drying assembly is provided on the mounting plate. The present invention can perform welding work outdoors, at high altitude, and without external power supply, and can simultaneously charge the battery when powered by an external power supply. Furthermore, the use of a high-voltage battery pack solution results in a low battery discharge current, low battery loss, fast charging speed, low battery performance requirements, and rapid heat dissipation and dust prevention.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of welding power supplies, and in particular to an energy storage welding power supply based on a rechargeable battery pack. Background Art

[0002] A welding power source primarily functions as a device that allows the welder to control whether the current is alternating current (AC) or direct current (DC), as well as the amperage and voltage. For welding processes using shielding gas, the power source also provides a method for connecting the gas and controlling the gas flow. The operator can set these factors within parameters based on the type of metal being used, thickness, and technique. Most welding power sources do not generate electricity, but rather act as controllable transformers, allowing the operator to adjust the electrical characteristics as needed.

[0003] Existing welding power supplies are divided into two types: those with their own power supply and those without. Different welding power supplies need to be used in different working environments, which seriously affects work efficiency. When the welding power supply is in use, if the heat inside it cannot be dissipated quickly, a large amount of heat will accumulate inside. The power supply itself will consume power faster due to the high temperature, making its use effect worse. Accelerating heat dissipation will cause a large amount of dust to accumulate inside the power supply. Excessive dust will also affect the service life and heat dissipation. Summary of the Invention

[0004] The technical solution of the present invention addresses the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. Specifically, the present invention mainly provides an energy storage welding power supply based on a rechargeable battery pack to solve the technical problems raised in the above background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] An energy storage welding power supply based on a rechargeable battery pack comprises a welding power supply outer shell, wherein a rechargeable battery pack, an intelligent charger, a power supply body and a temperature sensor are arranged inside the welding power supply outer shell;

[0007] An air inlet and an air outlet are provided on the outer shell of the welding power supply, a purification mechanism is provided inside the outer shell of the welding power supply, the purification mechanism includes a mounting plate frame composed of two upper and lower relative mounting plates, a plurality of rotating rollers and ventilation ducts are provided inside the mounting plate frame, several of the rotating rollers are rotatably mounted, and several of the rotating rollers are commonly connected to a dust filter, the ventilation duct is located inside the dust filter, a rotating fan is provided inside the ventilation duct, a driving motor is provided on the mounting plate frame, an output end of the driving motor is connected to a driving shaft and a reducer, and the driving shaft drives the rotating fan to rotate through mutually meshing bevel gears;

[0008] The duct opening at one end of the ventilation duct is directly opposite to the air inlet, and a shielding component is provided between the duct opening of the ventilation duct and the air inlet;

[0009] A drying assembly is provided on the mounting plate frame, and the drying assembly includes a connected storage box and a feed tray. A rotating shaft connected to a reducer is provided at the center of the feed tray, and a plurality of equidistant rotating plates are installed on the rotating shaft. A discharge pipe is connected to the lower end of the feed tray, and the discharge pipe extends to the inside of the ventilation duct. Dry particles are stored inside the storage box.

[0010] Preferably, the rechargeable battery pack is composed of multiple battery cells and is connected to the DC bus of the power supply body through a diode, and the intelligent charger and the inverter part of the power supply body are connected to the DC bus.

[0011] Preferably, a dust filter assembly is provided on the mounting plate frame, and the dust filter assembly includes a reduction motor located at the upper end of the mounting plate frame and a cam located inside the mounting plate frame, the output end of the reduction motor is connected to the cam shaft center, the cam is in contact with the dust filter net, the output end of the reduction motor is connected to the shaft center of one of the rotating rollers through a chain sprocket, and the lower end of the cam is provided with a dust box installed on the mounting plate frame.

[0012] Preferably, the shielding assembly includes two shielding plates sliding on the mounting plate frame and an adjusting box fixedly mounted on the mounting plate frame, a fixed seat is provided at the upper end of the adjusting box, a rotating round table is rotatably mounted at the lower end of the fixed seat, the rotating round table and the driving shaft are connected by a chain sprocket, a plurality of equally spaced guide rail grooves are provided on the oblique side surface of the rotating round table, and a cross bar is slidably arranged on each of the guide rail grooves, two sides of the fixed seat are set as inclined surfaces, and vertical plates are slidably arranged on the inclined surfaces, a top rod is installed on the side of the vertical plate away from the rotating round table, and the other end of the top rod is slidably mounted on the shielding plate.

[0013] Preferably, a return box installed at the lower end of the mounting plate is provided at another pipe opening of the ventilation duct, the return box is connected to an auger through a material pipe, and the discharge port at the upper end of the auger is connected to the feed tray through a pipe.

[0014] Preferably, the return box is provided with a collection box on one side along the moving direction of the dust filter, and a scraper in contact with the dust filter is provided at the center above the collection box.

[0015] Preferably, a rotating shaft is provided through the discharge pipe, and the rotating shaft is located inside the ventilation duct, and the rotating shaft is installed with fan blades located outside the discharge pipe and a limit plate located inside the discharge pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) When using external power supply, the inverter part of the power supply body is powered by the DC bus, and the rechargeable battery pack is charged by the intelligent charger at the same time. When fully charged, it stops working. When there is no external power supply, the rechargeable battery pack supplies power to the DC bus. Ordinary welding power supply solutions can be simply modified to realize models powered by external power supply and rechargeable battery pack. It can realize field, high-altitude and no external power supply welding work. When there is external power supply, it can charge the battery while working. In addition, the use of high-voltage battery pack solution has small battery discharge current, small battery loss, fast charging speed, and low battery performance requirements.

[0018] (2) If the dry particles absorb more water, the dry particles themselves will have a certain degree of adhesion. The dry particles that absorb water will adhere to the dust filter and move with the movement of the dust filter. Finally, they will be scraped off by the scraper and fall into the collection box. The dry particles that absorb less water have no adhesion. After colliding with the dust filter, they will directly fall into the return box and then return to the feed tray through the auger. Since the connection between the auger and the feed tray is located at the front end of the connection between the storage box and the feed tray, the dry particles transported by the auger will be stored between the two rotating plates first, that is, the used dry particles will be used first. This can not only dry the air, but also ensure that each dry particle is effectively used, greatly reducing the loss of dry particles, reducing the number of additions, and increasing the convenience of use.

[0019] (3) When the rotating fan rotates at a slow speed, that is, the air flow is low, the speed of the fan blades rotated by the wind also decreases, which reduces the speed of the rotating shaft and reduces the discharge amount of the discharge pipe. Conversely, as the air flow increases, the discharge amount of dry particles of the discharge pipe also increases, further increasing the convenience of use.

[0020] (4) The temperature sensor detects the internal temperature of the welding power supply. As the internal temperature of the welding power supply increases, the power of the driving motor increases continuously, causing the speed of the rotating fan to increase, ensuring effective heat dissipation of the welding power supply.

[0021] (5) In order to ensure that the dust filter can effectively filter the dust in the air, the mesh diameter of the dust filter is relatively small. Therefore, the dust filter has an obstruction to the air flow. The outside air flow needs to pass through a dust filter with the same area as the ventilation duct opening to enter the ventilation duct. Since the effective filtering area of ​​the dust filter remains unchanged, the resistance of the dust filter to the outside air flow remains unchanged. When the welding power supply is in use, when the internal temperature of the welding power supply does not rise to a high temperature, that is, the inside of the welding power supply only needs a small amount of outside air flow to cool down. However, since the dust filter has a certain resistance to the outside air flow, the small amount of outside air flow also requires the drive motor to maintain a correspondingly high power, so that the rotating fan can overcome the resistance during air flow at a faster speed to ensure the flow of a small amount of outside air, which seriously increases the energy consumption. However, this welding power supply adopts a baffle, which partially blocks the dust filter through the baffle, so that the area of ​​the dust filter through which the outside air flow passes is reduced, reducing the influence of resistance on air flow. Therefore, when the internal temperature of the welding power supply does not rise to a high temperature, that is, the inside of the welding power supply Only a small amount of external air flow is needed for cooling. Accordingly, the drive motor only needs to maintain a low power to drive the rotating fan to rotate, which reduces energy consumption. At the same time, as the internal temperature of the welding power supply increases, the speed of the rotating fan continues to increase, and the speed of the rotating table also increases, so that its centrifugal force becomes larger, the horizontal bar moves up and pushes the vertical plate to move. The movement of the vertical plate causes the top rod to push the two baffles to move back and forth, and continuously increases the effective dust filtering area of ​​the dust filter. When the gas flow rate increases, the gas pressure increases as the gas flow rate increases, so the dust is not easily intercepted by the dust filter, which reduces the filtering effect. By increasing the effective dust filtering area of ​​the dust filter, its resistance becomes larger, ensuring the filtering effect.

[0022] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the main circuit diagram of the power supply of the present invention;

[0024] Figure 2 This is a schematic diagram of the outer shell of the welding power supply of the present invention;

[0025] Figure 3 This is a schematic diagram of the mounting plate frame of the present invention;

[0026] Figure 4 This is a partial schematic diagram of the mounting plate frame of the present invention;

[0027] Figure 5 This is a schematic diagram of the internal structure of the regulating box of the present invention;

[0028] Figure 6 This is a schematic diagram of the interior of the mounting plate frame of the present invention (with dust filter);

[0029] Figure 7 This is a schematic diagram of the interior of the mounting plate frame of the present invention (excluding the dust filter);

[0030] Figure 8 Schematic diagram of the internal structure of the drying component of the present invention.

[0031] In the picture:

[0032] 1. Welding power supply shell; 11. Rechargeable battery pack; 12. Smart charger; 13. Power supply body; 14. Air inlet;

[0033] 2. Mounting plate frame; 201. Rotating roller; 202. Ventilation duct; 203. Dust filter; 204. Drive motor; 205. Drive shaft; 206. Return box; 207. Collecting box; 208. Scraper; 209. Auger; 210. Speed ​​reducer;

[0034] 301, reduction motor; 302, cam;

[0035] 401, shielding plate; 402, adjustment box; 403, fixed seat; 404, rotating round table; 405, horizontal bar; 406, vertical plate; 407, top bar;

[0036] 501, material storage box; 502, feeding tray; 503, rotating shaft; 504, rotating plate; 505, material discharge pipe; 506, rotating shaft; 507, fan blade; 508, limit plate. DETAILED DESCRIPTION

[0037] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly used by those skilled in the art to which the present invention pertains. The terms used in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0040] Example 1: Please refer to the attached Figure 1 As shown, a rechargeable battery-based energy storage welding power supply includes a welding power supply housing 1, within which are arranged a rechargeable battery pack 11, an intelligent charger 12, a power supply body 13, and a temperature sensor. The rechargeable battery pack 11 is composed of multiple battery cells and is connected to the DC bus of the power supply body 13 via a diode. The intelligent rechargeable power supply primarily comprises an auxiliary power supply, a constant current step-down circuit, a constant voltage control circuit, and a control section. The intelligent charger 12 and the inverter section of the power supply body 13 are connected to the DC bus. When operating with external power, the inverter section of the power supply body 13 is powered by the DC bus, while the rechargeable battery pack 11 is charged by the intelligent charger 12, and the power supply stops operating when fully charged. When no external power is supplied, the rechargeable battery pack 11 supplies power to the DC bus.

[0041] Example 2: Based on Example 1, please refer to the attached Figure 2 As shown, the welding power source itself has a control panel, and all the electrical components described below are connected to the control panel by telecommunications to facilitate control of the electrical components inside the device. The control circuit of the control panel can be implemented by simple programming by technicians in this field. It is common knowledge in the field and is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0042] Please refer to the attached Figure 2 - Figure 5As shown, the outer shell 1 of the welding power supply is provided with an air inlet 14 and an air outlet, and a purification mechanism is provided inside the outer shell 1 of the welding power supply, and the purification mechanism includes a mounting plate frame 2 composed of two upper and lower relative mounting plates, and a plurality of rotating rollers 201 and a ventilation duct 202 are provided inside the mounting plate frame 2, and the plurality of rotating rollers 201 are all rotatably installed, and the plurality of rotating rollers 201 are commonly connected to a dust filter 203, and the ventilation duct 202 is located inside the dust filter 203, and the duct opening at one end of the ventilation duct 202 is directly opposite to the air inlet 14, and a dust filter assembly is provided on the mounting plate frame 2, and the dust filter assembly includes a reduction motor 301 located at the upper end of the mounting plate frame 2 and a cam 302 located inside the mounting plate frame 2, the output end of the reduction motor 301 is connected to the axis of the cam 302, and the cam 302 is in contact with the dust filter 203, and the output end of the reduction motor 301 is connected to the axis of one of the rotating rollers 201 through a chain sprocket, and the lower end of the cam 302 is provided with a dust collecting box mounted on the mounting plate frame 2. When external air enters the welding power supply, it needs to pass through the air inlet 14, the dust filter 203 and the ventilation duct 202 in sequence. When the external air passes through the dust filter 203, the dust carried by the external air is filtered by the dust filter 203, which can effectively prevent excessive dust accumulation inside the welding power supply, affect the charging efficiency of the welding power supply, and reduce the service life. When the welding power supply is in use, the reduction motor 301 is also started, and the reduction motor 301 drives one of the rotating rollers 201 to rotate, thereby realizing the movement of the dust filter 203. At the same time, the reduction motor 301 drives the cam 302 to rotate, constantly knocking the dust filter 203, thereby realizing the cleaning of the dust filter 203, which can effectively prevent the dust filter 203 from being blocked by dust, affecting the air flow efficiency of the air inlet 14, thereby causing the welding power supply to be unable to cool down through air flow, thereby reducing its service life.

[0043] Please refer to the attached Figure 2 - Figure 8 As shown, a shielding assembly is provided between the pipe opening of the ventilation duct 202 and the air inlet 14, and the shielding assembly includes two shielding plates 401 sliding on the mounting plate frame 2 and an adjusting box 402 fixedly installed on the mounting plate frame 2, a fixed seat 403 is provided at the upper end of the adjusting box 402, and a rotating round table 404 is rotatably installed at the lower end of the fixed seat 403, and the rotating round table 404 and the driving shaft 205 are connected by a chain belt sprocket transmission, and a number of equally spaced guide rail grooves are provided on the oblique side surface of the rotating round table 404, and a cross bar 405 is slid on each guide rail groove, two sides of the fixed seat 403 are set as inclined surfaces, and vertical plates 406 are slidably provided on the inclined surfaces, and a top rod 407 is installed on the side of the vertical plate 406 away from the rotating round table 404, and the other end of the top rod 407 is slidably installed on the shielding plate 401.

[0044] A temperature sensor detects the internal temperature of the welding power supply. As the internal temperature of the welding power supply rises, the power of the drive motor 204 increases, causing the rotating fan to rotate at a higher speed, ensuring effective heat dissipation from the welding power supply. To ensure that the dust filter 203 can effectively filter dust from the air, the mesh diameter of the dust filter 203 is relatively small. Therefore, the dust filter 203 hinders air flow. Outside air must pass through the dust filter 203, which has the same area as the opening of the ventilation duct 202, to enter the ventilation duct 202. Since the effective filtering area of ​​the dust filter 203 remains unchanged, the resistance of the dust filter 203 to the outside air flow also remains unchanged.

[0045] When the welding power supply is in use, when the internal temperature of the welding power supply has not risen to a high temperature, that is, only a small amount of external air flow is needed to cool down the welding power supply. However, since the dust filter 203 has a certain resistance to the flow of external air flow, the circulation of a small amount of external air flow also requires the driving motor 204 to maintain a correspondingly higher power, so that the rotating fan can overcome the resistance during air flow at a faster speed to ensure the flow of a small amount of external air flow, which seriously increases the energy consumption. The welding power supply adopts a baffle 401, which partially blocks the dust filter 203 through the baffle 401, so that the area of ​​the dust filter 203 through which the external air flow passes is reduced, reducing the influence of resistance on air flow. Therefore, when the internal temperature of the welding power supply has not risen to a high temperature, that is, only a small amount of external air flow is needed inside the welding power supply. The outside air flow is cooled, and accordingly, the driving motor 204 only needs to maintain a low power to drive the rotating fan to rotate, thereby reducing energy consumption. At the same time, as the internal temperature of the welding power supply increases, the speed of the rotating fan continues to increase, and the speed of the rotating table 404 also increases, so that its centrifugal force becomes larger, and the horizontal bar 405 moves up and pushes the vertical plate 406 to move. The movement of the vertical plate 406 causes the top rod 407 to push the two baffles 401 to move back and forth, continuously increasing the effective dust filtering area of ​​the dust filter 203. When the gas flow rate increases, since the gas flow rate increases and the air pressure increases, the dust is not easily intercepted by the dust filter 203, which reduces the filtering effect. By increasing the effective dust filtering area of ​​the dust filter 203, its resistance becomes larger, thereby ensuring the filtering effect.

[0046] Please refer to the attached Figure 2 - Figure 8As shown, a rotating fan is provided inside the ventilation duct 202, and a driving motor 204 is provided on the mounting plate frame 2. The output end of the driving motor 204 is connected to a driving shaft 205 and a reducer 210, and the driving shaft 205 drives the rotating fan to rotate through mutually meshing bevel gears; a drying component is provided on the mounting plate frame 2, and the drying component includes a connected storage box 501 and a feeding tray 502, and a rotating shaft 503 connected to the reducer 210 is provided at the center of the feeding tray 502, and a number of equidistant rotating plates 504 are installed on the rotating shaft 503, and the lower end of the feeding tray 502 is connected to a discharge pipe 505, and the discharge pipe 505 extends to the inside of the ventilation duct 202. A return box 206 installed at the lower end of the mounting plate 2 is provided at another pipe opening of the ventilation duct 202. The return box 206 is connected to an auger 209 through a material pipe. The upper discharge port of the auger 209 is connected to the feed tray 502 through a pipe. The return box 206 is provided with a collection box 207 on one side along the moving direction of the dust filter 203. A scraper 208 in contact with the dust filter 203 is provided at the center above the collection box 207. Dry particles are stored inside the storage box 501.

[0047] The driving motor 204 drives the rotating shaft 503 to rotate through the reducer 210, so that the dry particles inside the storage box 501 continuously fall between the two rotating plates 504, and then enter the ventilation duct 202 through the discharge pipe 505. The dry particles absorb moisture from the outside air. Finally, the dry particles are discharged from the ventilation duct 202 along with the outside air flow and contact the dust filter 203. If the dry particles absorb more moisture, the dry particles themselves have a certain degree of adhesion. The dry particles that absorb moisture will adhere to the dust filter 203 and move with the movement of the dust filter 203. Finally, they are scraped off by the scraper 208 and fall into the collection box 20 7, while the dry particles that absorb less water have no adhesion and fall directly into the return box 206 after colliding with the dust filter 203, and then return to the inside of the feeding tray 502 again through the auger 209. Moreover, since the connection port between the auger 209 and the feeding tray 502 is located at the front end of the connection port between the storage box 501 and the feeding tray 502, the dry particles transported by the auger 209 will be stored preferentially between the two rotating plates 504, that is, the used dry particles will be used preferentially, which can not only dry the air but also ensure that each dry particle is effectively used, greatly reducing the loss of dry particles, reducing the number of additions, and increasing the convenience of use.

[0048] A rotating shaft 506 extends through the feed tube 505 and is located within the ventilation duct 202. A fan blade 507, located outside the feed tube 505, and a stop plate 508, located within the feed tube 505, are mounted on the rotating shaft 506. When the rotating fan rotates slowly, i.e., the air flow is low, the speed of the fan blade 507, which rotates with the wind force of the rotating fan, also decreases, causing the speed of the rotating shaft 506 to decrease, thereby reducing the amount of dry particles discharged from the feed tube 505. Conversely, as the air flow increases, the amount of dry particles discharged from the feed tube 505 also increases, further enhancing ease of use.

[0049] Specific steps:

[0050] When using external power supply, the inverter part of the power supply body 13 is powered by the DC bus, and the rechargeable battery pack 11 is charged by the intelligent charger 12 at the same time. When it is fully charged, it stops working. When there is no external power supply, the rechargeable battery pack 11 supplies power to the DC bus.

[0051] The temperature sensor detects the internal temperature of the welding power supply. As the internal temperature of the welding power supply increases, the power of the driving motor 204 is continuously increased, so that the speed of the rotating fan increases, thereby ensuring the effective heat dissipation of the welding power supply. When the external air enters the welding power supply, it needs to pass through the air inlet 14, the dust filter 203 and the ventilation duct 202 in sequence. When the external air passes through the dust filter 203, the dust carried by the external air is filtered by the dust filter 203. After the external air enters the ventilation duct 202, the driving motor 204 drives the rotating shaft 503 to rotate through the reducer 210, so that the dry particles inside the storage box 501 continuously fall between the two rotating plates 504, and then enter the interior of the ventilation duct 202 through the discharge pipe 505. The dry particles absorb moisture from the external air, and finally the dry particles are discharged along with the external air flow. The dry particles are discharged from the ventilation duct 202 and contact the dust filter 203. If the dry particles have absorbed more water, the dry particles themselves have a certain degree of adhesion. The dry particles that have absorbed water will adhere to the dust filter 203 and move along with the movement of the dust filter 203. Finally, they are scraped off by the scraper 208 and fall into the collection box 207. The dry particles that have absorbed less water have no adhesion. After colliding with the dust filter 203, they directly fall into the return box 206 and then return to the feed tray 502 through the auger 209. Since the connection between the auger 209 and the feed tray 502 is located at the front end of the connection between the storage box 501 and the feed tray 502, the dry particles transported by the auger 209 will be stored first between the two rotating plates 504, that is, the used dry particles will be used first.

[0052] The dust filter 203 is partially blocked by the baffle 401, so that the area of ​​the dust filter 203 through which the outside air flows is reduced, thereby reducing the effect of resistance on air flow. Therefore, when the internal temperature of the welding power supply does not rise to a high temperature, that is, the welding power supply only needs a small amount of outside air flow to cool down the inside. Accordingly, the drive motor 204 only needs to maintain a low power to drive the rotating fan, thereby reducing energy consumption. At the same time, as the internal temperature of the welding power supply rises, the speed of the rotating fan increases continuously, and the speed of the rotating table 404 also increases, causing its centrifugal force to increase. The horizontal bar 405 moves upward and pushes the vertical plate 406 to move. The movement of the vertical plate 406 causes the top rod 407 to push the two baffles 401 to move back and forth, continuously increasing the effective dust filtering area of ​​the dust filter 203. When the gas flow rate increases, the gas pressure increases simultaneously with the increase in gas flow rate. Therefore, dust is not easily intercepted by the dust filter 203, which reduces the filtering effect. By increasing the effective dust filtering area of ​​the dust filter 203, its resistance increases, ensuring the filtering effect.

[0053] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A welding power supply based on a rechargeable battery pack, comprising a welding power supply housing (1), characterized in that: The welding power supply outer shell (1) is internally arranged with a rechargeable battery pack (11), an intelligent charger (12), a power supply body (13) and a temperature sensor; An air inlet (14) and an air outlet are provided on the outer shell of the welding power supply (1). A purification mechanism is provided inside the outer shell of the welding power supply (1). The purification mechanism includes a mounting plate frame (2) composed of two upper and lower relative mounting plates. A plurality of rotating rollers (201) and a ventilation duct (202) are provided inside the mounting plate frame (2). The plurality of rotating rollers (201) are all rotatably mounted, and the plurality of rotating rollers (201) are commonly connected to a dust filter (203). The ventilation duct (202) is located inside the dust filter (203). A rotating fan is provided inside the ventilation duct (202). A driving motor (204) is provided on the mounting plate frame (2). The output end of the driving motor (204) is connected to a driving shaft (205) and a reducer (210). The driving shaft (205) drives the rotating fan to rotate through mutually meshing bevel gears. The duct opening at one end of the ventilation duct (202) is directly opposite to the air inlet (14), and a shielding assembly is provided between the duct opening of the ventilation duct (202) and the air inlet (14), the shielding assembly comprising two shielding plates (401) sliding on the mounting plate frame (2) and an adjustment box (402) fixedly mounted on the mounting plate frame (2), a fixing seat (403) being provided at the upper end of the adjusting box (402), a rotating round table (404) being rotatably mounted at the lower end of the fixing seat (403), and the rotating round table (404) being rotatably mounted on the lower end of the rotating round table (404). 4) and the drive shaft (205) are connected via a chain sprocket transmission, a plurality of equally spaced guide rail grooves are provided on the oblique side surface of the rotating truncated table (404), and a cross bar (405) is slidably provided on each of the guide rail grooves, two sides of the fixed seat (403) are provided as inclined surfaces, and vertical plates (406) are slidably provided on the inclined surfaces, a top rod (407) is installed on the side of the vertical plate (406) away from the rotating truncated table (404), and the other end of the top rod (407) is slidably provided on the shielding plate (401); A drying assembly is provided on the mounting plate frame (2), and the drying assembly includes a material storage box (501) and a feeding tray (502) connected to each other. A rotating shaft (503) connected to a reducer (210) is provided at the center of the feeding tray (502). A plurality of rotating plates (504) arranged at equal intervals are installed on the rotating shaft (503). A discharge pipe (505) is connected to the lower end of the feeding tray (502), and the discharge pipe (505) extends to the inside of the ventilation duct (202). Dry particles are stored inside the material storage box (501).

2. The energy storage welding power supply based on a rechargeable battery pack according to claim 1, characterized in that: The rechargeable battery pack (11) is composed of multiple battery cells and is connected to the DC bus of the power supply body (13) through a diode. The intelligent charger (12) and the inverter part of the power supply body (13) are connected to the DC bus.

3. The energy storage welding power supply based on a rechargeable battery pack according to claim 1, characterized in that: A dust filter assembly is provided on the mounting plate frame (2), and the dust filter assembly comprises a reduction motor (301) located at the upper end of the mounting plate frame (2) and a cam (302) located inside the mounting plate frame (2); the output end of the reduction motor (301) is connected to the axis of the cam (302); the cam (302) is in contact with the dust filter net (203); the output end of the reduction motor (301) is connected to the axis of one of the rotating rollers (201) through a chain sprocket; and a dust collecting box mounted on the mounting plate frame (2) is provided at the lower end of the cam (302).

4. The energy storage welding power source based on a rechargeable battery pack according to claim 1, characterized in that: A return box (206) mounted on the lower end of the mounting plate (2) is provided at another pipe opening of the ventilation pipe (202). The return box (206) is connected to an auger (209) via a material pipe. The upper end discharge port of the auger (209) is connected to the feed tray (502) via a pipe.

5. The energy storage welding power source based on a rechargeable battery pack according to claim 4, characterized in that: The return box (206) is provided with a collection box (207) on one side along the moving direction of the dust filter (203), and a scraper (208) in contact with the dust filter (203) is provided at the center above the collection box (207).

6. The energy storage welding power source based on a rechargeable battery pack according to claim 1, characterized in that: A rotating shaft (506) is provided through the discharge pipe (505), and the rotating shaft (506) is located inside the ventilation duct (202). The rotating shaft (506) is provided with a fan blade (507) located outside the discharge pipe (505) and a limit plate (508) located inside the discharge pipe (505).

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