Liquid cooling system of welding machine

Abstract

The utility model provides a liquid cooling system of a welding machine, which comprises a storage container; the two ends of the cooling pipeline communicate with the storage container, and the cooling pipeline is used for conveying a cooling medium to the welding tool to be cooled; the power part drives the cooling medium to flow along the cooling pipeline; the negative pressure assembly is used for pumping out gas in the storage container to enable the internal pressure of the storage container to reach a set negative pressure value; the air pressure sensor is used for detecting the pressure in the storage container; the control system is used for closing the power piece when the air pressure sensor detects that the pressure intensity value is larger than a first set value; wherein the first set value is larger than the set negative pressure value. According to the technical scheme, when the situation of pipeline leakage occurs, the pressure intensity in the storage container is increased, the control system controls the power part to be closed, the situation that the cooling medium is still continuously conveyed after leakage occurs is avoided, waste of the cooling medium is avoided, the problem that danger occurs due to leakage of a large amount of cooling medium can also be avoided, and safety is improved.

Description

Technical Field

[0001] The present application relates to the field of welding equipment, and in particular to a welding machine liquid cooling system. Background Art

[0002] Welding equipment will generate a lot of heat during the welding process. In particular, automated welding equipment needs to keep working for a long time. A cooling device needs to be installed to cool the welding gun to ensure normal welding operations of the equipment.

[0003] The existing cooling device includes a water tank, a water pump, a cooling pipe and a radiator. The water pump passes the water in the water tank to the welding gun through the cooling pipe to cool the welding gun, and the radiator dissipates the heat and cools the water in the cooling pipe to avoid the problem of excessive temperature of the welding gun and ensure that the welding gun can operate stably for a long time.

[0004] However, as the use time increases, the refrigeration system will have leakage problems due to material aging, pipe rupture and other reasons. If the coolant leaks, the equipment will not work properly and there will be serious safety hazards. Utility Model Content

[0005] The present application provides a liquid cooling system for a welding machine, which avoids the problem of equipment not being able to work normally due to leakage in the refrigeration system, reduces safety hazards and improves safety.

[0006] The present application provides a welding machine liquid cooling system, comprising:

[0007] The storage container is a closed container for storing cooling medium;

[0008] A cooling pipeline, both ends of which are connected to the storage container, for conveying cooling medium to the welding tool to be cooled;

[0009] A power member connected between the cooling pipe and the storage container to drive the cooling medium to flow along the cooling pipe;

[0010] A heat sink is connected to the cooling pipe, and the power member drives the cooling medium to pass through the welding tool to be cooled and the heat sink in sequence;

[0011] A negative pressure component is connected to the interior of the storage container and is used to extract the gas in the storage container so that the internal pressure of the storage container reaches a set negative pressure value;

[0012] An air pressure sensor, located in the storage container, for detecting the pressure in the storage container;

[0013] A control system connected to the air pressure sensor and the power component signal, the control system is used to shut down the power component when the air pressure sensor detects that the pressure value is greater than a first set value;

[0014] Wherein, the first set value is greater than the set negative pressure value.

[0015] In the above technical solution, a negative pressure environment is formed inside the storage container by setting up a negative pressure component, and an air pressure sensor is set to monitor the air pressure inside the storage container. When a pipeline leak occurs, the pressure inside the storage container increases, and the control system controls the power component to shut down, thereby avoiding the situation where the cooling medium continues to be transported after the leak occurs, avoiding the waste of cooling medium, and also avoiding the dangerous problem of leakage of a large amount of cooling medium, thereby improving safety.

[0016] In a specific possible implementation scheme, the negative pressure component is connected to the control system signal;

[0017] The control system is also used to control the negative pressure component to stop working when the air pressure sensor detects that the pressure value reaches a set negative pressure value.

[0018] In the above technical solution, after using a negative pressure component to extract the gas in the storage container so that the air pressure reaches a set negative pressure value, the negative pressure component is closed to maintain the internal air pressure of the storage container stable, which helps to maintain the stability of the cooling medium delivery flow rate subsequently.

[0019] In a specific possible implementation scheme, the control system is also used to control the operation of the power component when the air pressure sensor detects that the pressure value reaches a set negative pressure value, thereby driving the cooling medium to circulate along the cooling pipeline.

[0020] In the above technical solution, after the air pressure in the storage container is adjusted by the negative pressure component, the air pressure sensor and the control system automatically determine whether to start the power component, without the need for manual operation by the staff, thereby improving the overall convenience of the liquid cooling system.

[0021] In a specific possible implementation manner, the control system is further used to increase the working power of the negative pressure component when the air pressure sensor detects that the pressure value is greater than a first set value.

[0022] In the above technical solution, the interior of the storage container remains in a negative pressure environment for a short time after the leakage occurs. By increasing the power of the negative pressure component and forming a negative pressure environment inside the storage container, a stronger adsorption effect is exerted on the cooling medium retained in the cooling pipe, so that the cooling medium retained in the cooling pipe flows back into the storage container, thereby reducing the amount of leakage.

[0023] In a specific embodiment, it further comprises an alarm element, wherein the alarm element is connected to the control system signal;

[0024] The control system is also used to control the alarm element to send out a warning signal when the air pressure sensor detects that the pressure value is greater than a first set value.

[0025] In the above technical solution, when a cooling medium leak occurs, the alarm element is triggered to send out an alarm signal, so that the staff can promptly obtain information about the leak and handle it in time, avoiding the situation where the leak cannot be repaired in time for a long time after the leak occurs, thereby reducing the risk of damage to the equipment.

[0026] In a specific embodiment, it further comprises a liquid sensor, which is fixedly connected in the storage container and connected to the control system signal for detecting the liquid level in the storage container;

[0027] A communication port is provided on the side wall of the storage container, and the negative pressure component is connected with the interior of the storage container through the communication port;

[0028] The control system is used to control the negative pressure component to close when the liquid sensor detects that the liquid level reaches at least the lower side of the communication port;

[0029] When the welding machine liquid cooling system includes an alarm element, the control system is further used to control the alarm element to send out a warning signal when the liquid sensor detects that the liquid level at least reaches the lower side of the communication port.

[0030] In the above technical solution, before starting the negative pressure component, the liquid level height in the storage container is determined to avoid the problem of the cooling medium flowing into the negative pressure component due to the liquid level being too high, causing damage to the negative pressure component; and the staff is reminded to adjust the cooling medium so that the welding machine liquid cooling system can resume normal operation as soon as possible.

[0031] In a specific embodiment, it further includes a drain valve, which is fixedly connected to the storage container and communicated with the bottom of the storage container.

[0032] In the above technical solution, by providing a drain valve, when the cooling medium needs to be replaced or the cooling medium level in the storage container needs to be lowered, the original cooling medium in the storage container can be discharged more conveniently.

[0033] In a specific implementation manner, a liquid infusion port is provided on the side wall of the storage container, and a sealing cover for sealing the liquid infusion port is provided on the liquid infusion port.

[0034] In the above technical solution, after working continuously for a long time, when the cooling medium needs to be supplemented or replaced, the cooling medium can be conveniently added to the storage container through the provided liquid replenishing port, which is easy to operate.

[0035] In a specific embodiment, a filter is further included, and the filter is arranged in the cooling pipeline between the power component and the storage container.

[0036] In the above technical solution, the filter is set up to filter the impurities in the cooling medium, preventing the impurities from being transported to the power parts and other parts, causing damage to the equipment components, and improving the overall working stability of the liquid cooling system.

[0037] In a specific possible implementation manner, the filter is detachably fixedly connected to the cooling pipe.

[0038] In the above technical solution, when the working time is long, the filter can be directly removed, and the filter can be cleaned or replaced conveniently, thus avoiding the problem of too many impurities in the filter affecting the normal transportation of the cooling medium when the filter is used for a long time.

[0039] In a specific embodiment, it further comprises a flow detection element for detecting the flow of the cooling medium in the cooling pipeline, wherein the flow detection element is connected to the control system signal;

[0040] When the welding machine liquid cooling system further includes an alarm element, the control system is further used to control the alarm element to send out an alarm signal when the power component is started and the flow rate of the cooling medium monitored by the flow detection element is less than the set flow rate.

[0041] In the above technical solution, if the impurities remaining on the filter gradually increase with the extension of the use time, resulting in a decrease in the flow of the cooling medium in the cooling pipe, the alarm element will be triggered to send an alarm signal to remind the staff to clean or replace the filter in time to avoid the problem of a decrease in the flow of the cooling medium and a decrease in the refrigeration effect due to blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of the overall structure of a welding machine liquid cooling system provided in an embodiment of the present application;

[0043] Figure 2 A schematic diagram of the connection relationship between the control system receiving information and sending control signals provided in an embodiment of the present application.

[0044] Explanation of the reference numerals: 1. Storage container; 11. Connecting port; 12. Fluid filling port; 13. Drain valve; 14. Sealing cover; 2. Cooling pipe; 21. Filter; 22. Flow detection element; 3. Power part; 4. Heat sink; 5. Negative pressure component; 6. Air pressure sensor; 7. Control system; 8. Alarm element; 9. Liquid sensor. DETAILED DESCRIPTION

[0045] The present application is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present application will become clearer and more specific.

[0046] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise noted.

[0047] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0048] To facilitate understanding of the welding machine liquid cooling system provided in the embodiment of the present application, the main structure of the welding machine liquid cooling system is first briefly described. The liquid cooling system mainly includes a water tank, a water pump, a cooling pipe and a radiator. The water pump serves as a power component to drive the cooling water from the water tank through the pipe to the welding gun, and then dissipates the heat through the radiator to achieve cooling of the welding gun; the cooling water cools the welding gun, and a pipe can be set in contact with the heating part of the welding gun to achieve heat conduction, or a cooling cavity can be provided on the welding gun, and the cooling water is passed into the cooling cavity through the cooling pipe to achieve cooling of the welding gun.

[0049] However, as the use time increases, the refrigeration system may leak due to material aging and pipe rupture, causing the welding equipment to fail to work properly and posing a major safety hazard.

[0050] The embodiment of the present application provides a welding liquid cooling system, which is used to cool down a welding tool to be cooled, wherein the welding tool to be cooled is a welding gun. The risk of leakage of the refrigeration system is reduced, the stable operation of the welding equipment is ensured, and the safety is improved. The system is described in detail below with reference to specific drawings and embodiments.

[0051] refer to Figure 1 , Figure 1A schematic diagram of a welding machine liquid cooling system provided in an embodiment of the present application is shown. The welding machine liquid cooling system provided in an embodiment of the present application includes a storage container 1, a cooling pipe 2, a power part 3, a heat sink 4 and a negative pressure component 5, wherein the storage container 1 is a closed container for storing a cooling medium, and the cooling medium can be water and a special coolant; the cooling pipe 2 is fixedly connected to the storage container 1 at both ends and communicated with the inside of the storage container 1, and conveys the cooling medium to the welding tool (welding gun) to be cooled for cooling; the cooling pipe 2 has multiple sections to achieve the connection of different components. For the sake of convenience, the multiple sections of the cooling pipe 2 are collectively referred to as the cooling pipe 2; the power part 3 is connected between the cooling pipe 2 and the storage container 1, driving the cooling medium to flow along the cooling pipe 2, so that the cooling medium flows to the welding gun to cool the welding gun; in the embodiment of the present application, the power part 3 is illustrated by taking a water pump as an example.

[0052] The heat sink 4 is connected to the cooling pipe 2, and the cooling medium flows through the welding gun and the heat sink 4 in sequence, and then flows back to the storage container 1. The cooling medium absorbs the heat generated by the welding gun and dissipates the heat at the heat sink 4; the heat sink 4 is a common heat dissipation structure in the art, and the embodiment of the present application does not limit the specific structure of the heat sink 4. The negative pressure component 5 is connected to the inside of the storage container 1, and is used to extract the gas in the storage container 1, so that the pressure inside the storage container 1 drops, forming a negative pressure state, and reaching a set negative pressure value.

[0053] In addition, reference Figure 1 and Figure 2 The welding machine liquid cooling system also includes an air pressure sensor 6 and a control system 7. The air pressure sensor 6 is fixedly connected to the storage container 1 and is used to detect the pressure in the storage container 1. The control system 7 is connected to the air pressure sensor 6 and the power component 3 by signal, receives the pressure data detected by the air pressure sensor 6, and controls the opening and closing of the power component 3. When the pressure value detected by the air pressure sensor 6 is greater than the first set value, the power component 3 is closed. Among them, the set negative pressure value is a pressure value less than the atmospheric pressure, and the first set value is greater than the set negative pressure value. In actual production, the specific sizes of the two can be adjusted according to actual needs.

[0054] By setting up the storage container 1 and the cooling pipe 2, a closed environment is formed inside the liquid cooling system, and the cooling medium flows in the closed environment to cool the welding gun; by setting the negative pressure component 5, the inside of the closed environment is maintained at a set negative pressure value. If a leakage fault occurs subsequently, the closed environment is connected to the external environment, and the pressure will increase.

[0055] If the air pressure sensor 6 detects a pressure greater than the first set value, it indicates that the liquid cooling system has a leakage problem. At this time, the control system 7 sends a control signal to the power component 3 (i.e., the water pump) to control the power component 3 to shut down and stop the delivery of the cooling medium. In this way, it is possible to avoid the problem of continuing to deliver the cooling medium in the event of a leakage, causing a larger amount of cooling medium to leak. The refrigeration system can be automatically monitored and shut down in time in the event of a leakage, thereby avoiding dangerous problems caused by cooling medium leakage and improving safety.

[0056] At the same time, the control system 7 is not only connected to the liquid cooling system to control the refrigeration process, but also connected to the welding machine system signal. When a leakage problem is detected and the delivery of the cooling medium is stopped, the welding machine is controlled to be shut down and the welding operation is stopped to avoid welding operations being carried out when the liquid cooling system stops working, resulting in increased welding temperature, and then reduced welding quality and damage to welding equipment. It plays a better protective role for the welding machine.

[0057] In addition, the welding machine liquid cooling system also includes an alarm element 8, which is connected to the control system 7 by signal. When the air pressure sensor 6 detects that the pressure value is greater than the first set value, the control system 7 receives the corresponding detection signal, determines that a leakage problem occurs, controls the power part 3 and the welding machine to be turned off, and controls the alarm element 8 to send an alarm signal. When a leakage problem occurs, the staff can be notified in time, and the staff will be informed of the leakage problem in time and carry out maintenance, so as to avoid the problem that the equipment cannot work normally for a long time.

[0058] The alarm element 8 can be selected from different types as needed. For example, the alarm element 8 can be selected from the following types: a signal light that flashes or emits light of different colors; a buzzer that emits a buzzer sound; a display screen that displays the corresponding alarm information on the display screen when an alarm occurs. In addition, the alarm element 8 can also be a software system installed in a mobile terminal (such as a mobile phone). In the event of a leakage fault, the control system 7 sends an alarm signal to multiple mobile terminals. In this way, even if the staff is not on site, they can be informed in time when a leakage problem occurs.

[0059] In the embodiment of the present application, the negative pressure component 5 takes a vacuum pump as an example, and the control system 7 and the negative pressure component 5 also maintain a signal connection to regulate the opening and closing of the negative pressure component 5. Before the power component 3 is started and the cooling medium is transported, the vacuum pump is first used to evacuate air to form a negative pressure environment in the storage container 1, and during the evacuation process, the pressure is continuously detected by the air pressure sensor 6. When the set negative pressure value is reached, the vacuum pump is controlled to stop working, and the power component 3 is controlled to start, driving the cooling medium to circulate along the cooling pipe 2; in this way, the internal pressure of the storage container 1 can be stably adjusted to the set negative pressure value, and the internal pressure of the storage container 1 can be kept stable, not too large or too small, and the stability of the cooling medium transportation can also be maintained.

[0060] In addition, when a leakage problem is detected, the power component 3 is turned off and the delivery of the cooling medium is stopped. At this time, a certain amount of cooling medium still remains in the cooling pipe 2; and the pressure in the storage container 1, although greater than the set negative pressure value in the short period of time when the leakage problem occurs, still remains in a negative pressure state, which can adsorb the cooling medium in the cooling pipe 2 into the storage container 1 to a certain extent, thereby reducing the leakage of the cooling medium in the cooling pipe 2.

[0061] When the control system 7 receives the information that the pressure value detected by the air pressure sensor 6 is greater than the first set value, it restarts the negative pressure component 5 to continuously extract the gas in the storage container 1 to the outside, which can further prevent the leakage of the cooling medium in the cooling pipe 2.

[0062] In actual implementation, it is difficult to ensure that the storage container 1 is completely sealed. In this case, after the pressure in the storage container 1 is adjusted to the set negative pressure value, the negative pressure component 5 is always kept in the open state to maintain the internal pressure of the storage container 1 stable. When a leakage problem occurs, increasing the working power of the negative pressure component 5 can ensure a better adsorption effect on the cooling medium in the cooling pipe 2, so that the cooling medium flows back from the cooling pipe 2 to the storage container 1. For the sake of convenience, the two different processes of closing and opening the negative pressure component 5 and increasing the working power of the negative pressure component 5 are collectively referred to as increasing the working power of the negative pressure component 5.

[0063] refer to Figure 1 and Figure 2 The welding machine liquid cooling system further includes a liquid sensor 9, which is fixedly connected at a first set height in the storage container 1 and is connected to the control system 7 by signal, and is used to detect the liquid level in the storage container 1. The storage container 1 is provided with a communication port 11, and the negative pressure component 5 is connected to the inside of the storage container 1 through the communication port 11; the first set height is located at the lower edge of the communication port 11; the control system 7 is also used to control the negative pressure component 5 to close when the liquid sensor 9 detects that the liquid level at least reaches the lower side of the communication port 11.

[0064] The process mainly involves detecting the liquid level in the storage container 1 through the liquid sensor 9 before the liquid cooling system is started; if the liquid level is high and reaches the position of the connecting port 11, opening the negative pressure component 5 will cause part of the cooling medium to be transported to the negative pressure component 5 through the connecting port 11, which may easily cause damage to the negative pressure component 5. Therefore, when it is detected that the liquid level in the storage container 1 reaches at least the lower side of the connecting port 11, the negative pressure component 5 is controlled to be in a closed state, which can prevent the negative pressure component 5 from sucking in the cooling medium and causing damage to the equipment, thereby ensuring the normal operation of the equipment. Moreover, in this case, the control system 7 triggers the alarm element 8 to send an alarm signal to remind the staff that the cooling medium level in the storage container 1 is too high, and the staff adjusts the cooling medium level in time (by discharging part of the cooling medium), so that the liquid cooling system can resume normal working state as soon as possible.

[0065] Exemplarily, a liquid sensor 9 is also provided, which is fixedly connected at a second set height in the storage container 1 and is also signal-connected to the control system 7 for detecting the height of the cooling medium in the storage container 1; the second set height is located below the first set height and is at a lower position in the storage container 1.

[0066] When the height of the cooling medium in the storage container 1 is between the first set height and the second set height, the refrigeration system works normally; if the liquid level of the cooling medium is lower than the second set height, it indicates that the amount of cooling medium in the storage container 1 is too little. Insufficient cooling medium will lead to a decrease in the refrigeration effect and needs to be replenished in time. When the liquid sensor 9 detects that the cooling medium is lower than the second set height, the control system 7 triggers the alarm element 8 to send an alarm signal, providing the staff with a timely replenishment of the cooling medium to ensure the normal operation of the refrigeration system.

[0067] The specific position of the second set height is determined in actual design based on factors such as the type of welding tool to be cooled (i.e. welding gun), the type of cooling medium, the circulation flow rate of the cooling medium, etc. It only needs to ensure that when the cooling medium liquid level is higher than the second set height, the welding machine liquid cooling system has sufficient cooling effect.

[0068] In addition, refer to Figure 1 The storage container 1 is provided with a liquid replenishing port 12, and the liquid replenishing port 12 is provided with a sealing cover 14 for sealing the liquid replenishing port 12; it is convenient to replenish the cooling medium into the storage container 1 through the provided liquid replenishing port 12, and the provided sealing cover 14 ensures that the internal space of the storage container 1 and the corresponding space of the cooling pipe 2 are closed spaces.

[0069] refer to Figure 1 and Figure 2The welding machine liquid cooling system also includes a drain valve 13, which is fixedly connected to the storage container 1 and communicated with the bottom of the storage container 1, and the cooling medium in the storage container 1 is discharged through the drain valve 13. The control system 7 receives the detection signal of the liquid sensor 9. When the liquid sensor 9 detects that the liquid level is higher than the lower edge of the communication port 11, the alarm element 8 sends an alarm signal to remind the staff to open the drain valve 13 to discharge the cooling medium in the storage container 1 until the liquid level in the storage container 1 drops to the lower side of the communication port 11. In this way, it can avoid the problem that the liquid level is too high, causing the cooling medium to flow to the negative pressure component 5, causing the negative pressure component 5 to be damaged.

[0070] In addition, after working continuously for a long time, when the cooling medium in the storage container needs to be replaced, the original cooling medium can be discharged more conveniently through the provided discharge valve 13.

[0071] According to the above description, it is known that in the actual production process, it is difficult to achieve complete closure inside the storage container 1. In this case, the negative pressure component 5 is kept in the open state to maintain the internal pressure of the storage container 1 stable at the set negative pressure value, which will cause dust and other impurities in the external environment to enter the storage container 1 and mix with the cooling medium; in order to avoid the impurities from damaging the power part 3 or clogging the cooling medium circulation, the welding machine liquid cooling system also includes a filter 21, which is arranged in the cooling pipe 2 and is located between the power part 3 and the storage container 1. By filtering the cooling medium through the filter 21, it is possible to avoid the problem of hindering the normal operation of the equipment when it is transported to the power part 3.

[0072] It should be noted that, in the embodiment of the present application, the filter 21 is disposed in the cooling pipe 2, and it is not necessary to completely fix the filter inside the cooling pipe 2. It is only necessary for the filter 21 to be disposed on the conveying path of the cooling medium.

[0073] In addition, the filter 21 is detachably fixedly connected to the cooling pipe 2, and the filter 21 is sealed to the cooling pipe 2. After a certain period of use, the filter 21 can be replaced or removed for cleaning to prevent excessive dust and other impurities on the filter 21 from blocking the normal transportation of the cooling medium, thereby ensuring smooth transportation of the cooling medium.

[0074] As for the connection structure between the filter 21 and the cooling pipe 2, the filter 21 is exemplarily a box structure, with a filter screen and other filtering structures inside, and interfaces connected to the cooling pipe 2 are provided on two opposite sides of the filter 21, the cooling pipe 2 is segmented, and the filter 21 is connected between the segmented cooling pipes 2. In actual settings, the specific connection structure can be adjusted according to actual needs, as long as it can meet the filtering of the cooling medium and avoid leakage problems.

[0075] refer to Figure 1 The liquid cooling system also includes a flow detection element 22, which is arranged in the cooling pipe 2 and is used to detect the flow of the cooling medium in the cooling pipe 2. The flow detection element 22 is also connected to the control system signal so that the control system 7 can adjust the corresponding component action according to the flow in the cooling pipe 2.

[0076] When the power part 3 is started and the flow rate of the cooling medium detected by the flow detection element 22 is less than the set flow rate, the control system 7 controls the alarm element 8 to send out an alarm signal; this situation indicates that the flow rate of the cold zone medium is reduced due to the blockage of the filter 21, which can remind the staff to clean and replace the filter 21 in time to avoid the problem of the cooling medium flow rate being too small and causing the cooling effect to decrease. The set flow rate here is determined according to the actual situation, because it is guaranteed that when the cooling medium flow rate is not less than the set flow rate, the welding machine liquid cooling system has a sufficiently high cooling efficiency.

[0077] It should be noted that the signal connection referred to in the embodiments of the present application refers to various common signal transmission connection methods, including wired connection and wireless connection, which only needs to be able to meet the signal transmission needs between different components.

[0078] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships in the working state of the present application. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0079] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense; in addition, the term "a plurality" in this application refers to two or more. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0080] The present application has been described above in conjunction with preferred embodiments, but these embodiments are only exemplary and serve only as an illustration. On this basis, various replacements and improvements may be made to the present application, all of which fall within the scope of protection of the present application.

Claims

1. A welding machine liquid cooling system, characterized in that: include, The storage container is a closed container for storing cooling medium; A cooling pipeline, both ends of which are connected to the storage container, for conveying cooling medium to the welding tool to be cooled; A power member, connected between the cooling pipe and the storage container, driving the cooling medium to flow along the cooling pipe; A heat sink is connected to the cooling pipe, and the power member drives the cooling medium to pass through the welding tool to be cooled and the heat sink in sequence; A negative pressure component is connected to the interior of the storage container and is used to extract the gas in the storage container so that the internal pressure of the storage container reaches a set negative pressure value; An air pressure sensor, located in the storage container, for detecting the pressure in the storage container; A control system, connected to the air pressure sensor and the power component signal, the control system is used to shut down the power component when the air pressure sensor detects that the pressure value is greater than a first set value; Wherein, the first set value is greater than the set negative pressure value.

2. The welding machine liquid cooling system according to claim 1, characterized in that: The negative pressure component is connected to the control system signal; The control system is also used to control the negative pressure component to stop working when the air pressure sensor detects that the pressure value reaches a set negative pressure value.

3. The welding machine liquid cooling system according to claim 2, characterized in that: The control system is also used to control the power component to operate when the air pressure sensor detects that the pressure value reaches a set negative pressure value, thereby driving the cooling medium to circulate along the cooling pipeline.

4. The welding machine liquid cooling system according to claim 1, characterized in that: The control system is also used to increase the working power of the negative pressure component when the air pressure sensor detects that the pressure value is greater than a first set value.

5. The welding machine liquid cooling system according to claim 1, characterized in that: Also includes an alarm element, the alarm element is connected to the control system signal; The control system is also used to control the alarm element to send out a warning signal when the air pressure sensor detects that the pressure value is greater than a first set value.

6. The welding machine liquid cooling system according to any one of claims 1 to 5, characterized in that: It also includes a liquid sensor, which is fixedly connected in the storage container and connected to the control system signal for detecting the liquid level in the storage container; A communication port is provided on the side wall of the storage container, and the negative pressure component is connected with the interior of the storage container through the communication port; The control system is used to control the negative pressure component to close when the liquid sensor detects that the liquid level reaches at least the lower side of the communication port; When the welding machine liquid cooling system includes an alarm element, the control system is further used to control the alarm element to send out a warning signal when the liquid sensor detects that the liquid level at least reaches the lower side of the communication port.

7. The welding machine liquid cooling system according to claim 6, characterized in that: It also includes a discharge valve, which is fixedly connected to the storage container and communicated with the bottom of the storage container.

8. The welding machine liquid cooling system according to claim 7, characterized in that: A liquid replenishing port is arranged on the side wall of the storage container, and a sealing cover for sealing the liquid replenishing port is arranged on the liquid replenishing port.

9. The welding machine liquid cooling system according to any one of claims 1 to 5, characterized in that: A filter is also included, and the filter is arranged in the cooling pipeline between the power component and the storage container.

10. The welding machine liquid cooling system according to claim 9, characterized in that: The filter is detachably fixedly connected to the cooling pipe.

11. The welding machine liquid cooling system according to claim 9, characterized in that: It also includes a flow detection element for detecting the flow of the cooling medium in the cooling pipeline, and the flow detection element is connected to the control system signal; When the welding machine liquid cooling system further includes an alarm element, the control system is further used to control the alarm element to send out an alarm signal when the power component is started and the flow rate of the cooling medium monitored by the flow detection element is less than the set flow rate.

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