Safe arc welding machine
By building an emergency device into the arc welding machine, it automatically detects and responds to the transformer temperature or fire source, achieving rapid power outage, fire extinguishing and cooling, solving the safety hazards of transformer overheating or fire, and reducing maintenance costs and difficulty.
Patent Information
- Application Number
- CN202422454389.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-11
AI Technical Summary
Existing thyristor arc welding machines are prone to burn out when the transformer temperature is too high or catches fire, posing a safety hazard and making maintenance difficult and costly.
A safe arc welding machine has been designed with built-in emergency devices including independent power supply components, fire extinguishing components and cooling components. The machine automatically detects and responds to transformer temperature or fire source through the electronically controlled switch component, achieving rapid power outage, fire extinguishing and cooling to reduce damage.
It effectively reduces the damage caused by overheating or fire of the transformer, reduces maintenance costs and difficulty, and improves safety.
Smart Images
Figure CN223325621U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding machines, in particular to a safety arc welding machine. Background Art
[0002] In the prior art thyristor arc welding machine, when the transformer temperature is too high or catches fire, the secondary short circuit of the transformer generates a large current, thereby increasing the temperature of the transformer. If the power is not cut off or the temperature is not cooled in time, the transformer will be burned out and the welding machine will be burned out. In serious cases, a fire accident may occur, posing a major safety hazard. In addition, maintenance is difficult and costly.
[0003] Therefore, it is necessary to develop a safe arc welding machine that can automatically cool down or extinguish a transformer that is overheating or on fire, and can quickly disconnect the transformer from the power supply and welding output circuit, reducing the damage caused by the transformer being overheated or on fire, effectively reducing maintenance costs and difficulty, and improving safety. Utility Model Content
[0004] In order to solve the above problems, the technical solutions adopted by the present invention are as follows:
[0005] A safety arc welding machine comprises a chassis, wherein a circuit module, a transformer, an electric control switch assembly and an emergency device are arranged in the chassis;
[0006] The emergency device includes an independent power supply component, a fire extinguishing component and a cooling component, wherein the independent power supply component is connected to the fire extinguishing component and the cooling component respectively through an electric control switch component;
[0007] The chassis is provided with a power interface, the circuit module includes a sub-control board and a welding output circuit, the sub-control board is electrically connected to the electric control switch assembly, the electric control switch assembly includes a first contactor and a second contactor, the input end of the transformer is connected to the power interface through the first contactor, and the output end is connected to the welding output circuit and the independent power supply assembly through the second contactor, and the output end of the independent power supply assembly is also connected to the sub-control board;
[0008] The fire extinguishing component is used to detect whether there is a fire source on the transformer and spray fire extinguishing agent to the transformer. The cooling component is used to detect the temperature of the transformer and cool the transformer when the transformer temperature is too high.
[0009] Preferably, the electrically controlled switch assembly further includes a third contactor, and the third contactor is arranged on the input end of the independent power supply assembly.
[0010] Preferably, the electrically controlled switch assembly further includes a fourth contactor and a fifth contactor, and the independent power supply assembly is connected to the cooling assembly and the fire extinguishing assembly through the fourth contactor and the fifth contactor, respectively.
[0011] Preferably, the cooling component includes an emergency cooling fan arranged on one side of the transformer, and a temperature sensor arranged on the transformer, and the temperature sensor is electrically connected to the auxiliary control board.
[0012] Preferably, the chassis is provided with a lower chamber and an upper chamber that are not connected to each other, and the upper chamber is provided with a plurality of left chambers, middle chambers and right chambers that are not connected to each other;
[0013] The fire extinguishing component is arranged in the left chamber, the battery of the independent power supply component is arranged in the middle chamber, the circuit module is arranged in the right chamber, and the transformer is arranged in the lower chamber.
[0014] Preferably, the fire extinguishing assembly includes a fire extinguishing sensor, a fire extinguisher and a fire extinguishing material release tube, the fire extinguisher is arranged in the left chamber, the fire extinguishing sensor is arranged on the transformer, one end of the fire extinguishing material release tube is connected to the fire extinguisher, and the other end faces the transformer.
[0015] Preferably, the fire extinguisher is an electrically controlled aerosol fire extinguisher.
[0016] Preferably, it further comprises an alarm connected to the outside of the chassis, and the alarm is electrically connected to the auxiliary control board.
[0017] Preferably, the independent power supply component includes a charging circuit, a battery and a discharge circuit connected in sequence, the discharge circuit is connected to the cooling component and the fire extinguishing component respectively through the fourth contactor and the fifth contactor, and the input end of the charging circuit is connected to the output end of the third contactor.
[0018] Preferably, the alarm is an acoustic alarm or a light alarm, or a combination thereof.
[0019] Compared with the prior art, the beneficial effects of the present invention are:
[0020] The utility model can automatically cool down or extinguish a transformer with an overheated or burning transformer, and can quickly disconnect the transformer from the power supply and welding output circuit, reducing damage caused by the transformer's overheating or fire, effectively reducing maintenance costs and difficulty, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is the control principle diagram of the utility model;
[0022] Figure 2 This is a schematic diagram of the internal structure of the utility model;
[0023] Among them: chassis 1, transformer 2, electronically controlled switch assembly 3, independent power supply assembly 4, fire extinguishing assembly 5, cooling assembly 6, auxiliary control board 7, welding output circuit 8, alarm 9, first contactor 31, second contactor 32, third contactor 33, fourth contactor 34, fifth contactor 35, charging circuit 41, battery 42, discharge circuit 43, fire extinguishing sensor 51, fire extinguisher 52, fire extinguishing material release tube 53, emergency cooling fan 61, temperature sensor 62, lower chamber 100, upper chamber 200, left chamber 201, middle chamber 202, right chamber 203, power interface 1a. DETAILED DESCRIPTION
[0024] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.
[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," "upper," "lower," "front," "rear," and similar expressions used herein are for illustrative purposes only.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0027] Below, the present invention is further described with reference to the accompanying drawings and specific embodiments:
[0028] like Figure 1-2 As shown, a safety arc welding machine includes a chassis 1, wherein the chassis 1 is provided with a circuit module, a transformer 2, an electric control switch assembly 3 and an emergency device;
[0029] The emergency device includes an independent power supply component 4, a fire extinguishing component 5 and a cooling component 6, and the independent power supply component 4 is connected to the fire extinguishing component 5 and the cooling component 6 respectively through the electric control switch component 3;
[0030] The chassis 1 is provided with a power interface 1a, the circuit module includes a sub-control board 7 and a welding output circuit 8, the sub-control board 7 is electrically connected to the electric control switch assembly 3, the electric control switch assembly 3 includes a first contactor 31 and a second contactor 32, the input end of the transformer 2 is connected to the power interface 1a through the first contactor 31, and the output end is connected to the welding output circuit 8 and the independent power supply assembly 4 through the second contactor 32, and the output end of the independent power supply assembly 4 is also connected to the sub-control board 7;
[0031] The fire extinguishing component 5 is used to detect whether there is a fire source on the transformer 2 and spray a fire extinguishing agent to the transformer 2. The cooling component 6 is used to detect the temperature of the transformer 2 and cool the transformer 2 when the temperature of the transformer 2 is too high.
[0032] In this embodiment, when the transformer 2 is normal, the first contactor 31 and the second contactor 32 are connected, and the transformer 2 supplies power to the welding output circuit 8 and the independent power supply component 4 at the same time. The independent power supply component 4 stores electric energy while supplying power to the auxiliary control board 7, the cooling component 6 and the fire extinguishing component 5, thereby avoiding the power outage in which the electric control switch component 3, the cooling component 6 and the fire extinguishing component 5 are short of power and cannot be started, thereby improving the reliability of emergency control.
[0033] When the temperature of the transformer 2 is too high or it catches fire, the auxiliary control board 7 controls the first contactor 31 and the second contactor 32 to be disconnected. At the same time, the auxiliary control board 7 controls the electronically controlled switch component 3 to connect the independent power supply component 4 with the cooling component 6 or the fire extinguishing component 5, and drives the cooling component 6 or the fire extinguishing component 5 to start cooling the transformer 2 or extinguishing the fire, thereby reducing the damage caused by the overtemperature or fire of the transformer 2, effectively reducing the maintenance cost and difficulty, and greatly improving safety.
[0034] Further, such as Figure 1 、 2 As shown, the electric control switch assembly 3 further includes a third contactor 33 , and the third contactor 33 is arranged at the input end of the independent power supply assembly 4 .
[0035] In this embodiment, under the action of the auxiliary control board 7, the third contactor 33 is turned on and off to avoid damage to the independent power supply component 4 caused by abnormality of the transformer 2, and to achieve automatic charging and energy storage of the independent power supply component 4.
[0036] Further, such as Figure 1 、 2 As shown, the electric control switch assembly 3 further includes a fourth contactor 34 and a fifth contactor 35 , and the independent power supply assembly 4 is connected to the cooling assembly 6 and the fire extinguishing assembly 5 through the fourth contactor 34 and the fifth contactor 35 respectively.
[0037] In this embodiment, the auxiliary control board 7 controls the on / off of the fourth contactor 34 and the fifth contactor 35 according to the condition of the transformer 2. When the temperature of the transformer 2 is too high, the fourth contactor 34 is turned on, and when the temperature of the transformer 2 is on fire, the fifth contactor 35 is turned on, thereby achieving efficient, stable and controllable cooling and fire extinguishing.
[0038] Further, such as Figure 1 、 2 As shown, the cooling component 6 includes an emergency cooling fan 61 arranged on one side of the transformer 2 and a temperature sensor 62 arranged on the transformer 2. The temperature sensor 62 is electrically connected to the auxiliary control board 7.
[0039] In this embodiment, when the temperature sensor 62 detects that the temperature of the transformer 2 is too high, it sends a signal to the auxiliary control board 7, and the auxiliary control board 7 controls the fourth contactor 34 to be turned on, thereby realizing the rapid start of the emergency cooling fan 61; the emergency cooling fan 61 is independently used when the temperature of the transformer 2 is too high, and the heat is dissipated through the cooling fan of the welding machine when the welding machine is operating normally.
[0040] In addition, in this embodiment, the emergency cooling fan 61 is a variable frequency fan, and the speed of the fan can be controlled by real-time temperature changes, thereby ensuring effective cooling of the transformer 2.
[0041] Further, such as Figure 2 As shown, the chassis 1 is provided with a lower chamber 100 and an upper chamber 200 which are not connected to each other, and the upper chamber 200 is provided with a plurality of left chambers 201, middle chambers 202 and right chambers 203 which are not connected to each other;
[0042] The fire extinguishing component 5 is arranged in the left chamber 201 , the battery 42 of the independent power supply component 4 is arranged in the middle chamber 202 , the circuit module is arranged in the right chamber 203 , and the transformer 2 is arranged in the lower chamber 100 .
[0043] In this embodiment, an air inlet and a heat dissipation vent are provided on the lower chamber 100; by placing the transformer 2, the fire-extinguishing component, the battery 42 of the power supply component and the circuit module in independent chambers, the interference and influence between them are reduced, the stability and reliability of each component are ensured, and the safety is further improved.
[0044] Further, such as Figure 1 、 2 As shown, the fire extinguishing assembly 5 includes a fire extinguishing sensor 51, a fire extinguisher 52 and a fire extinguishing material release pipe 53. The fire extinguisher 52 is arranged in the left chamber 201, the fire extinguishing sensor 51 is arranged on the transformer 2, and one end of the fire extinguishing material release pipe 53 is connected to the fire extinguisher 52, and the other end faces the transformer 2.
[0045] In this embodiment, when the fire extinguishing sensor 51 detects a fire source, the auxiliary control board 7 turns on the fifth contactor 35, and then the fire extinguisher 52 is energized to release the fire extinguishing material to extinguish the fire, thereby realizing the monitoring and processing of the fire alarm and being able to extinguish the fire in time.
[0046] Furthermore, the fire extinguisher 52 is an electrically controlled aerosol fire extinguisher.
[0047] Further, such as Figure 1 、 2 As shown, the chassis 1 further includes an alarm 9 connected to the outside of the chassis 1 , and the alarm 9 is electrically connected to the auxiliary control board 7 .
[0048] In this embodiment, in order to issue an alarm to alert the user when the transformer 2 is overheated or on fire;
[0049] Further, such as Figure 1 、 2 As shown, the independent power supply component 4 includes a charging circuit 41, a battery 42 and a discharge circuit 43 connected in sequence. The discharge circuit is connected to the cooling component 6 and the fire extinguishing component 5 through the fourth contactor 34 and the fifth contactor 35 respectively. The input end of the charging circuit 41 is connected to the output end of the third contactor 33.
[0050] In this embodiment, when the battery 42 is fully charged, the third contactor 33 is disconnected, otherwise, the third contactor 33 is connected; the charging circuit 41 is used to convert the power supply of the secondary of the transformer 2 into power for the battery 42, and the discharge circuit is used to output power that meets the requirements of the emergency cooling fan 61 and the fire extinguisher 52. The battery 42 also supplies power to the auxiliary control board 7.
[0051] Furthermore, the alarm 9 is one or a combination of an acoustic alarm 9 and a light alarm 9 .
[0052] For those skilled in the art, various other corresponding changes and deformations can be made based on the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of this utility model patent.
Claims
1. A safety arc welding machine, comprising a chassis, characterized in that: The chassis is provided with a circuit module, a transformer, an electric control switch assembly and an emergency device; The emergency device includes an independent power supply component, a fire extinguishing component and a cooling component, wherein the independent power supply component is connected to the fire extinguishing component and the cooling component respectively through an electric control switch component; The chassis is provided with a power interface, the circuit module includes a sub-control board and a welding output circuit, the sub-control board is electrically connected to the electric control switch assembly, the electric control switch assembly includes a first contactor and a second contactor, the input end of the transformer is connected to the power interface through the first contactor, and the output end is connected to the welding output circuit and the independent power supply assembly through the second contactor, and the output end of the independent power supply assembly is also connected to the sub-control board; The fire extinguishing component is used to detect whether there is a fire source on the transformer and spray fire extinguishing agent to the transformer. The cooling component is used to detect the temperature of the transformer and cool the transformer when the transformer temperature is too high.
2. A safety arc welding machine according to claim 1, characterized in that: The electric control switch assembly further includes a third contactor, which is arranged on the input end of the independent power supply assembly.
3. A safety arc welding machine according to claim 1, characterized in that: The electric control switch assembly further includes a fourth contactor and a fifth contactor, and the independent power supply assembly is connected to the cooling assembly and the fire extinguishing assembly respectively through the fourth contactor and the fifth contactor.
4. A safety arc welding machine according to claim 1, characterized in that: The cooling component includes an emergency cooling fan arranged on one side of the transformer and a temperature sensor arranged on the transformer, and the temperature sensor is electrically connected to the auxiliary control board.
5. A safety arc welding machine according to claim 1, characterized in that: The chassis is provided with a lower chamber and an upper chamber which are not connected to each other, and the upper chamber is provided with a plurality of left chambers, middle chambers and right chambers which are not connected to each other; The fire extinguishing component is arranged in the left chamber, the battery of the independent power supply component is arranged in the middle chamber, the circuit module is arranged in the right chamber, and the transformer is arranged in the lower chamber.
6. A safety arc welding machine according to claim 1 or 4, characterized in that: The fire extinguishing assembly includes a fire extinguishing sensor, a fire extinguisher and a fire extinguishing material release pipe. The fire extinguisher is arranged in the left chamber, the fire extinguishing sensor is arranged on the transformer, one end of the fire extinguishing material release pipe is connected to the fire extinguisher, and the other end faces the transformer.
7. A safety arc welding machine according to claim 6, characterized in that: The fire extinguisher is an electrically controlled aerosol fire extinguisher.
8. The safety arc welding machine according to claim 1, characterized in that: It also includes an alarm connected to the outside of the chassis, and the alarm is electrically connected to the auxiliary control board.
9. The safety arc welding machine according to claim 5, characterized in that: The independent power supply component includes a charging circuit, a battery and a discharge circuit connected in sequence. The discharge circuit is connected to the cooling component and the fire extinguishing component respectively through a fourth contactor and a fifth contactor. The input end of the charging circuit is connected to the output end of the third contactor.
10. The safety arc welding machine according to claim 8, characterized in that: The alarm is a sound alarm or a light alarm or a combination thereof.