Safe explosion-proof high-frequency transformer

Abstract

The invention relates to the technical field of induction heating, in particular to a safe explosion-proof high-frequency transformer which comprises a housing, a transformer body and the like. A transformer is mounted in the housing; the rear side of the transformer is communicated with an external power supply device through a cable. By pulling the sliding plate forwards, the front end of the sliding plate covers the left side and the right side of the heating head, so that the left side and the right side of a heated part of metal are covered, impurities on the surface of the metal are prevented from splashing towards a direction close to a worker through the sliding plate, the worker is prevented from being injured, and the safety of using the induction heating device is improved; the heating head moves on the surface of the metal workpiece through the roller, so that the distance between the heating head and the metal surface is always consistent, a worker can operate and move the housing conveniently, at the moment, the weight of the housing and the weight of a connecting part are transmitted to the metal surface through the roller, and the worker only needs to control the horizontal moving direction of the housing; and the burden of a worker in moving the housing is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of induction heating, and in particular to a safe explosion-proof high-frequency transformer. Background Art

[0002] Induction heating devices are commonly used for rapid heat treatment of metal workpieces. Their working principle is that a worker holds a transformer in hand to move the induction coil on the metal surface, and uses a high-frequency transformer to convert the input AC power into high-frequency high-voltage electricity suitable for induction heating. Subsequently, an alternating magnetic field is generated in the induction coil through a high-frequency alternating current, thereby generating eddy currents on the metal workpiece, causing the metal workpiece to heat up rapidly. In this process, due to the presence of impurities such as oil and oxide scale on the surface of the metal workpiece, the oil and oxide scale and other impurities may burn at high temperatures, and some impurities may melt during combustion, resulting in sputtering. Existing induction heating devices usually do not have additional protective measures to block the sputtered impurities, and at this time the worker is close to the metal heating part, so that the impurities may easily sputter onto the worker, causing injury to the worker. Summary of the invention

[0003] In order to overcome the defect that impurities on the metal surface may be sputtered during the heating of the metal workpiece, and the existing induction heating device usually has no additional protection measures to block the sputtered impurities, so that the impurities are easily sputtered onto the workers, thereby causing injuries to the workers, the present invention provides a safe explosion-proof high-frequency transformer.

[0004] The technical implementation scheme of the present invention is: a safe explosion-proof high-frequency transformer, including a cover and a transformer; a transformer is installed in the cover; the rear side of the transformer is connected to an external power supply device through a cable; it also includes a fixed plate, a first induction coil and a slide plate; a fixed plate is installed on the front side of the cover; the fixed plate and the transformer are connected by a wire; two sockets are provided on the fixed plate; a first induction coil for heating a metal workpiece is plugged into the socket; a heating head is provided on the front side of the first induction coil; a slide plate is slidably connected to the cover to prevent impurities from splashing onto the worker when heating the metal workpiece; the shape of the slide plate is set to an inverted U shape; a cover plate is rotatably connected to the front side of the slide plate.

[0005] More preferably, the slide plate is configured to be made of a transparent material.

[0006] More preferably, it also includes a baffle and a second induction coil; the front left and front right parts of the slide plate are both rotatably connected to a baffle to prevent heat loss from the surface of the metal workpiece; the socket on the fixed plate can be plugged with the second induction coil.

[0007] More preferably, it further comprises a driving member; the front side of the slide plate is rotatably connected to a plurality of driving members through a torsion spring; the driving member is embedded in the slide plate; and a clamping block is fixedly connected to the telescopic end of the driving member.

[0008] More preferably, it also includes rollers; the lower left and right parts of the slide plate are both rotatably connected with a plurality of rollers for the convenience of the staff to move the induction heating device.

[0009] More preferably, it also includes a moving component, which includes a first slide rail, a first electric slider, a fixed frame, a second slide rail and a second electric slider; the first slide rail is fixedly connected to the front side of the cover; the first electric slider is slidably connected to the first slide rail; the fixed frame is fixedly connected to the first electric slider; the second slide rail is fixedly connected to the fixed frame; the second electric slider is slidably connected to the second slide rail; the second electric slider is fixedly connected to the fixed plate.

[0010] More preferably, it also includes a limit rod; a plurality of limit rods are fixedly connected to the fixed frame; two left-right symmetrical extrusion blocks are arranged on the fixed plate; the fixed plate and the adjacent extrusion blocks are slidably connected by a spring telescopic rod; a gap is formed between the fixed plate and the adjacent extrusion blocks; each limit rod is located between adjacent gaps.

[0011] More preferably, a first cavity is opened on the upper side of the cover shell; an exhaust port is opened on the rear side of the first cavity; the exhaust port is connected to an external air intake device; a plurality of heat dissipation holes are arranged on the lower side of the first cavity to facilitate heat dissipation of the transformer; and a through groove is arranged on the front side of the cover shell.

[0012] More preferably, a connecting pipe is also included; a second cavity is opened on the left and right sides of the slide; each second cavity is opened with a plurality of air intake holes to prevent the toxic gas generated during the heating of the metal workpiece from escaping into the air; a connecting pipe is connected between the first cavity of the cover shell and each second cavity.

[0013] More preferably, the heat dissipation holes are arranged on the contact surface between the slide plate and the adjacent baffle plate.

[0014] The present invention has the following advantages: When heating a metal workpiece, the slide plate is pulled forward so that the front end of the slide plate covers the left and right sides of the heating head, thereby covering the left and right sides of the heated part of the metal. The slide plate prevents impurities on the metal surface from splashing toward the workers, thus preventing the workers from being hurt and improving the safety of using the induction heating device. The roller moves on the surface of the metal workpiece, thereby ensuring that the distance between the heating head and the metal surface is always consistent, making it easier for workers to operate and move the cover. At this time, the weight of the cover and its connected parts are transferred to the metal surface through the roller. The worker only needs to control the horizontal movement direction of the cover, which reduces the burden on the worker when moving the cover. The metal workpiece is covered by two baffles, a slide plate and a cover plate, which effectively reduces the heat loss caused by the external airflow blowing to the surface of the metal workpiece, ensures the heating efficiency of the metal workpiece, and effectively prevents the dust of the external airflow from adhering to the surface of the metal workpiece, thereby ensuring the quality of the metal workpiece; Compared with conventional induction heating devices, when the metal workpiece needs to be heated for a long time, the metal workpiece is temporarily fixed by the clamping block on the driving part, thereby avoiding the situation of being burned by manually holding the metal workpiece. The second induction coil is moved around the metal workpiece in three axes in the front and back, left and right, and up and down directions, which makes it easier for the second induction coil to heat the curved tubular metal workpiece, thereby improving the adaptability of the induction heating device to different shapes of metal workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the safety explosion-proof high-frequency transformer of the present invention; Figure 2 A combined cross-sectional view of the cover and the slide plate of the present invention; Figure 3 It is a diagram of the baffle of the present invention in an expanded state; Figure 4 This is a diagram showing the combined unfolded state of the baffle and the driving member of the present invention; Figure 5 For the present invention Figure 4 A in the enlarged view; Figure 6 It is a schematic diagram of the three-dimensional structure of the fixed plate and the limiting rod combination of the present invention.

[0016] Among them, the above-mentioned drawings include the following drawing marks: 1-cover, 1001-first cavity, 1002-exhaust port, 1003-heat dissipation hole, 1004-through slot, 2-transformer, 3-fixed plate, 3001-jack, 3002-extrusion block, 3003-gap, 4-first induction coil, 4001-heating head, 5-slide plate, 5001-cover plate, 5002-second cavity, 5003-intake hole, 201-baffle, 202-driving member, 203-connecting pipe, 204-roller, 205-first slide rail, 206-first electric slider, 207-fixed frame, 208-second slide rail, 209-second electric slider, 210-limiting rod, 211-second induction coil. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] Example 1 like Figure 1-Figure 6 As shown, a safety explosion-proof high-frequency transformer includes a housing 1 and a transformer 2; the transformer 2 is installed in the housing 1; the rear side of the transformer 2 is connected to an external power supply device through a cable; a handle is provided on the housing 1; It also includes a fixing plate 3, a first induction coil 4 and a slide plate 5; the fixing plate 3 is installed on the front side of the cover 1; the fixing plate 3 and the transformer 2 are connected by a wire; two left-right symmetrical sockets 3001 are provided on the fixing plate 3; the first induction coils 4 of different sizes are plugged into the sockets 3001; a heating head 4001 is arranged on the front side of the first induction coil 4; the slide plate 5 is slidably connected to the cover 1; the shape of the slide plate 5 is set to be an inverted U shape; the upper front part of the slide plate 5 is rotatably connected to the cover plate 5001.

[0019] Furthermore, in order to facilitate the staff to observe the heating situation, the slide plate 5 is configured to be made of transparent material.

[0020] It also includes a baffle 201 and a second induction coil 211; the front left and front right parts of the slide plate 5 are both rotatably connected to a baffle 201; as a substitute for the first induction coil 4, the socket 3001 on the fixed plate 3 can be plugged with a second induction coil 211 of different sizes.

[0021] It also includes a driving member 202; the front side of the slide plate 5 is rotatably connected to two left-right symmetrical driving members 202 through a torsion spring, and the driving member 202 is an electric push rod; the driving member 202 is embedded in the slide plate 5; a clamping block is fixed to the telescopic end of the driving member 202.

[0022] It also includes rollers 204; the lower left and right parts of the skateboard 5 are both rotatably connected to two rollers 204.

[0023] It also includes a moving component, which includes a first slide rail 205, a first electric slider 206, a fixed frame 207, a second slide rail 208 and a second electric slider 209; the first slide rail 205 is fixedly connected to the middle of the front side of the cover 1; the first electric slider 206 is slidably connected to the first slide rail 205; the fixed frame 207 is fixedly connected to the first electric slider 206; the second slide rail 208 is fixedly connected to the lower side of the fixed frame 207; the second electric slider 209 is slidably connected to the second slide rail 208; the second electric slider 209 is fixedly connected to the fixed plate 3.

[0024] It also includes a limiting rod 210; two left-right symmetrical limiting rods 210 are fixedly connected to the fixed frame 207; two left-right symmetrical extrusion blocks 3002 are arranged on the fixed plate 3; the fixed plate 3 and the adjacent extrusion blocks 3002 are slidingly connected by a spring telescopic rod; a gap 3003 is formed between the fixed plate 3 and the adjacent extrusion blocks 3002; each limiting rod 210 is located between adjacent gaps 3003.

[0025] The following is a detailed description of the process of heat treatment of metal workpieces by induction heating devices: Before heating the surface of the metal workpiece for a short time, firstly, the first induction coil 4 is plugged into the corresponding socket 3001 of the fixing plate 3, and the external power supply device is controlled to provide power to the transformer 2, and the input mains electricity is converted into high-frequency high-voltage electricity through the transformer 2, so that an alternating magnetic field is generated on the first induction coil 4, and then the staff holds the handle on the cover 1, thereby driving the transformer 2, the fixing plate 3 and the first induction coil 4 to move, so that the heating head 4001 of the first induction coil 4 moves horizontally above the metal workpiece, so that the metal workpiece generates eddy currents under the action of electromagnetic induction through the alternating magnetic field generated by the heating head 4001, so that the metal workpiece is heated up in a short time, thereby realizing short-time heating of the metal workpiece. In this process, due to the Impurities such as oil stains and scales are prone to spattering after melting when heated, and at this time the workers are usually relatively close to the metal workpiece, which can cause the impurities to spatter onto the workers and cause harm to them. For this reason, when heating the metal workpiece, the slide plate 5 is pulled forward so that the front end of the slide plate 5 covers the left and right sides of the heating head 4001, thereby covering the left and right sides of the heated part of the metal. The slide plate 5 blocks the impurities on the metal surface from spattering toward the workers, thereby preventing the workers from being harmed and improving the safety of using the induction heating device. On this basis, the slide plate 5 is set to adopt a transparent material, so that the workers can observe the heating condition of the metal workpiece through the slide plate 5, thereby improving the convenience of using the induction heating device.

[0026] In the process of the worker holding the cover 1 and driving the first induction coil 4 to move on the surface of the metal workpiece, in order to ensure the heating efficiency of the metal, when the heating head 4001 is too far away from the metal surface, the magnetic field strength is weaker, the eddy current in the metal is weaker, and the heating efficiency is low. Therefore, the heating head 4001 needs to be as close to the metal surface as possible. When the heating head 4001 is in contact with the high-temperature metal surface, the heating head 4001 is easily overheated and damaged. At the same time, the uneven part of the metal surface will scratch or damage the heating head 4001. Therefore, the heating head 4001 cannot be directly attached to the metal surface. In addition, when the worker holds the cover 1 and moves horizontally, it will inevitably shake, which makes it difficult to control the heating head 4001 and the metal. The distance between the metal workpieces is very inconvenient for the staff to operate and move. Therefore, the staff first places the cover shell 1 above the metal workpiece, so that the roller 204 at the bottom of the slide plate 5 contacts the surface of the metal workpiece, and aligns the heating head 4001 with the part of the metal workpiece that needs to be heated. Then the staff pushes the cover shell 1 and the slide plate 5 to move forward, and moves on the surface of the metal workpiece through the roller 204, so as to ensure that the distance between the heating head 4001 and the metal surface is always consistent, which is convenient for the staff to operate and move the cover shell 1. At this time, the weight of the cover shell 1 and its connecting parts are transferred to the metal surface through the roller 204. The staff only needs to control the direction of the horizontal movement of the cover shell 1, which reduces the burden on the staff when moving the cover shell 1.

[0027] In addition to short-term heating of metal workpieces, there are also situations where metal workpieces need to be heated for a long time. For example, when hot forming a metal workpiece, the part of the metal workpiece that needs to be formed needs to be heated by an induction coil to soften the metal workpiece locally, thereby facilitating the forming operation. In this case, when an external airflow blows toward the surface of the metal workpiece, it will take away the heat from the metal surface, thereby reducing the heating efficiency of the metal workpiece. Moreover, at this time, the impurities on the metal surface are burned cleanly at high temperature, and the surface of the metal workpiece is in a molten state. The dust impurities carried in the external airflow are easily attached to the surface of the metal workpiece, thereby reducing the quality of the metal workpiece. For this reason, when the metal workpiece needs to be heated for a long time, the first induction coil 4 is first removed from the socket 3001, and then the second induction coil 211 is plugged into the socket 30 01, and place the cover 1 on a flat ground, so that the second induction coil 211 is in a static state, and then the metal workpiece to be heated is placed in the second induction coil 211, and then the transformer 2 is started to start heating the metal workpiece. Based on the view from top to bottom, the staff rotates the baffle 201 on the left side 90 degrees clockwise and the baffle 201 on the right side 90 degrees counterclockwise, so that the two baffles 201 are in an unfolded state, and the cover 5001 is turned over to cover the baffle 201. In this way, the metal workpiece is covered by the two baffles 201, the slide plate 5 and the cover plate 5001, which effectively reduces the heat loss caused by the external airflow blowing to the surface of the metal workpiece, ensures the heating efficiency of the metal workpiece, and effectively blocks the dust of the external airflow from adhering to the surface of the metal workpiece, thereby ensuring the quality of the metal workpiece.

[0028] On this basis, when heating a metal workpiece, it is generally done in a workshop or factory. At this time, a fixing device is usually used to fix the metal workpiece in the workshop or factory. In some special cases, such as when it is necessary to temporarily heat the metal workpiece outdoors, there is no fixing device to fix the metal workpiece. At this time, the metal workpiece needs to be heated manually by hand. When the metal workpiece to be heated is short, if the worker holds the metal workpiece to heat it, the heat on the metal workpiece will be quickly transferred to the worker's hand, which may easily burn the worker. For this reason, when the baffle 201 is in a closed state, the baffle 201 squeezes the adjacent driving member 202, so that the torsion spring between the driving member 202 and the slide plate 5 is compressed. When it is necessary to temporarily fix the metal workpiece, the two baffles 201 are first unfolded, so that under the action of the torsion spring, the driving member 202 on the left side is rotated 90 degrees clockwise from top to bottom, and the driving member 202 on the right side is rotated counterclockwise. The clockwise rotation is 90 degrees to put the two driving members 202 in the expanded state. At this time, the clamping blocks on the telescopic ends of the two driving members 202 are arranged opposite to each other, and based on the view from right to left, the cover plate 5001 is rotated 180 degrees clockwise to put it in the open state, and then the metal workpiece is passed from top to bottom between the two clamping blocks, and then extended into the second induction coil 211. At the same time, the telescopic ends of the two driving members 202 are controlled to move toward each other, thereby driving the two clamping blocks to move toward each other until the two clamping blocks clamp the metal workpiece, thus completing the temporary fixation of the metal workpiece, and then based on the view from right to left, the cover plate 5001 is rotated 180 degrees counterclockwise to put it in the closed state, and then the transformer 2 is controlled to work to heat the metal workpiece for a long time. Compared with the conventional induction heating device, when the metal workpiece needs to be heated for a long time, the metal workpiece is temporarily fixed by the clamping blocks on the driving member 202, thereby avoiding the situation where the metal workpiece is burned by manual hand-held, and at the same time improving the portability of the operation of the staff.

[0029] When the metal workpiece is in the shape of a curved circular tube and is short in length, during the heating process of the second induction coil 211 on the metal workpiece of such shape, the second induction coil 211 needs to be moved along the curved curvature of the circular tube, and the induction heating device has a certain weight, which is not convenient for manual hand-held induction heating device to adapt to and move along the curved circular tube-shaped metal workpiece. Therefore, the existing method is usually to place the induction heating device on a platform, and then the staff hand-holds the workpiece through the second induction coil 211 for heating. However, the staff hand-holds the workpiece through the second induction coil 211 for heating, which is easy to cause burns to the staff. Therefore, by controlling the first electric slider 206 on the first slide rail 20 5, thereby driving the fixing frame 207 and its connecting parts to move up and down, and controlling the second electric slider 209 to move forward and backward in the second slide rail 208, thereby driving the second induction coil 211 to move up and forward and backward. At the same time, by controlling the telescopic ends of the two driving members 202 to move to the left or to the right at the same time, the metal workpiece is driven to move left and right, so that the second induction coil 211 can move around the metal workpiece in three axes in the front and back, left and right, and up and down directions, thereby fixing the metal workpiece and facilitating the second induction coil 211 to heat the curved tubular metal workpiece, thereby improving the adaptability of the induction heating device to different shapes of metal workpieces.

[0030] When the induction coils of the conventional induction heating device are plugged in, that is, when the first induction coil 4 or the second induction coil 211 is plugged in the socket 3001, it is necessary to tighten the locking bolt to prevent the induction coil from detaching from the socket 3001. When replacing the induction coil, it is necessary to loosen the locking bolt and then tighten it again, which is a cumbersome operation. Therefore, before inserting the first induction coil 4 or the second induction coil 211, the second electric slider 209 is first controlled to drive the fixed plate 3 and the extrusion block 3002 to move backward to the rear end of the second slide rail 208, so that the limit rod 210 is inserted between the adjacent gaps 3003, so that the two extrusion blocks 3002 move back to back, and the spring telescopic rod between the extrusion block 3002 and the fixed plate 3 is stretched, and the distance of the gap 3003 is increased. When the first induction coil 4 or the second induction coil 211 is inserted into the jack 3001, the second electric slider 209 is controlled to drive the fixed plate 3 and the extrusion block 3002 to move forward, so that the limit rod 210 is disengaged from the gap 3003, and the spring telescopic rod between the extrusion block 3002 and the fixed plate 3 is reset, and the distance of the gap 3003 is reduced. In this way, the first induction coil 4 or the second induction coil 211 is squeezed by the extrusion block 3002 and the fixed plate 3 to complete the fixation of the first induction coil 4 or the second induction coil 211. In this way, the need to reciprocally loosen and tighten the bolts when replacing the induction coil is avoided, and the first induction coil 4 or the second induction coil 211 can be quickly disassembled and installed, thereby improving the portability of the induction heating device used by the staff.

[0031] Example 2 On the basis of Example 1, Figure 1-Figure 3 As shown, a first cavity 1001 is provided on the upper side of the cover shell 1; an exhaust port 1002 is provided on the rear side of the first cavity 1001; the exhaust port 1002 is connected to an external air intake device; a plurality of heat dissipation holes 1003 are provided on the lower side of the first cavity 1001; a through groove 1004 is provided on the front side of the cover shell 1; the cover shell 1 is configured to adopt high-strength explosion-proof material.

[0032] It also includes a connecting pipe 203; a second cavity 5002 is opened on the left and right sides of the slide plate 5; each second cavity 5002 is opened with a plurality of air intake holes 5003; a connecting pipe 203 is connected between the first cavity 1001 of the cover shell 1 and each second cavity 5002.

[0033] Furthermore, in order to prevent foreign matter from entering the heat dissipation hole 1003 and causing blockage, the heat dissipation hole 1003 is arranged on the contact surface between the slide plate 5 and the adjacent baffle plate 201 .

[0034] After the transformer 2 has been working for a long time, a lot of heat will accumulate in the cover 1. At this time, it is necessary to cool the transformer 2 in the cover 1. To this end, the exhaust port 1002 is evacuated through an external suction device, so that the first cavity 1001 is in a negative pressure state, so that the outside air enters the cover 1 through the through groove 1004, and then enters the first cavity 1001 through the heat dissipation hole 1003, and then is discharged from the exhaust port 1002. In this way, the outside air continuously flows through the inside of the cover 1, thereby taking away the heat accumulated in the cover 1, and cooling the transformer 2 to avoid the explosion of the transformer 2 due to long-term operation in a high-temperature environment. When the transformer 2 accidentally explodes due to other factors, the cover 1 is set to use high-strength explosion-proof materials, and the impact of the explosion is blocked by the cover 1, thereby improving the safety of the transformer 2. On this basis, when the induction heating device heats the metal workpiece for a long time, due to Impurities such as oxides on the metal surface volatilize when heated, and there is a situation where toxic gases are generated and escape to the outside, which can easily harm the health of the workers. For this reason, while the cover 1 is dissipating the heat, the toxic gases generated by heating the metal workpiece enter the second cavity 5002 through the air intake hole 5003, then enter the first cavity 1001 through the connecting pipe 203, and then are discharged to the external air intake device from the exhaust port 1002. Finally, the toxic gases are purified by the air purification device and then discharged. In this way, the toxic gases generated by the heated metal workpiece are prevented from escaping into the air, thereby affecting the health of the workers. Furthermore, by setting the heat dissipation hole 1003 on the contact surface between the cover 1 and the adjacent baffle 201, when the induction heating device is not used, the baffle 201 needs to be stored and rotated to fit with the cover 1. At this time, the baffle 201 covers the adjacent air intake hole 5003, thereby preventing foreign matter from entering the air intake hole 5003 and causing blockage.

[0035] Although the present disclosure has been shown and described with reference to specific exemplary embodiments of the present disclosure, it should be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-mentioned embodiments, but should be determined not only by the appended claims, but also by the equivalents of the appended claims.

Claims

1. A safety explosion-proof high-frequency transformer, comprising a housing (1) and a transformer (2); the housing (1) is provided with the transformer (2); the rear side of the transformer (2) is connected to an external power supply device via a cable; wherein: The invention also comprises a fixing plate (3), a first induction coil (4) and a slide plate (5); the fixing plate (3) is installed on the front side of the cover shell (1); the fixing plate (3) and the transformer (2) are connected via a wire; two sockets (3001) are provided on the fixing plate (3); the first induction coil (4) for heating a metal workpiece is plugged into the socket (3001); a heating head (4001) is provided on the front side of the first induction coil (4); a slide plate (5) is slidably connected to the cover shell (1) to prevent impurities from splashing onto a worker when heating the metal workpiece; the shape of the slide plate (5) is set to be an inverted U shape; and a cover plate (5001) is rotatably connected to the front side of the slide plate (5).

2. A safety explosion-proof high-frequency transformer according to claim 1, characterized in that: The slide plate (5) is configured to be made of a transparent material.

3. A safety explosion-proof high-frequency transformer according to claim 2, characterized in that: It also includes a baffle (201) and a second induction coil (211); the front left part and the front right part of the slide plate (5) are both rotatably connected to a baffle (201) for preventing heat loss on the surface of the metal workpiece; and the plug hole (3001) on the fixed plate (3) can be plugged with the second induction coil (211).

4. A safety explosion-proof high frequency transformer according to claim 3, characterized in that: It also includes a driving member (202); the front side of the slide plate (5) is rotatably connected to a plurality of driving members (202) via a torsion spring; the driving member (202) is embedded in the slide plate (5); and a clamping block is fixedly connected to the telescopic end of the driving member (202).

5. A safety explosion-proof high-frequency transformer according to claim 4, characterized in that: It also includes rollers (204); the lower left and right parts of the slide plate (5) are both rotatably connected to a plurality of rollers (204) for facilitating the movement of the induction heating device by a worker.

6. A safety explosion-proof high frequency transformer according to claim 1, characterized in that: The invention also comprises a moving assembly, which comprises a first slide rail (205), a first electric slider (206), a fixing frame (207), a second slide rail (208) and a second electric slider (209); the first slide rail (205) is fixedly connected to the front side of the cover shell (1); the first electric slider (206) is slidably connected to the first slide rail (205); the fixing frame (207) is fixedly connected to the first electric slider (206); the fixing frame (207) is fixedly connected to the second slide rail (208); the second electric slider (209) is slidably connected to the second slide rail (208); and the second electric slider (209) is fixedly connected to the fixing plate (3).

7. A safety explosion-proof high frequency transformer according to claim 6, characterized in that: It also includes a limiting rod (210); a plurality of limiting rods (210) are fixedly connected to the fixing frame (207); two left-right symmetrical extrusion blocks (3002) are arranged on the fixing plate (3); the fixing plate (3) and adjacent extrusion blocks (3002) are slidably connected via spring telescopic rods; a gap (3003) is formed between the fixing plate (3) and adjacent extrusion blocks (3002); and each limiting rod (210) is located between adjacent gaps (3003).

8. A safety explosion-proof high frequency transformer according to claim 6, characterized in that: A first cavity (1001) is provided on the upper side of the cover (1); an exhaust port (1002) is provided on the rear side of the first cavity (1001); the exhaust port (1002) is connected to an external air intake device; a plurality of heat dissipation holes (1003) are provided on the lower side of the first cavity (1001) for facilitating heat dissipation of the transformer (2); and a through slot (1004) is provided on the front side of the cover (1).

9. A safety explosion-proof high frequency transformer according to claim 8, characterized in that: It also includes a connecting pipe (203); a second cavity (5002) is provided on the left and right sides of the slide plate (5); each second cavity (5002) is provided with a plurality of air intake holes (5003) for preventing toxic gases generated during the heating of the metal workpiece from escaping into the air; and a connecting pipe (203) is provided between the first cavity (1001) of the cover shell (1) and each second cavity (5002).

10. A safety explosion-proof high frequency transformer according to claim 9, characterized in that: The heat dissipation hole (1003) is arranged on the contact surface between the slide plate (5) and the adjacent baffle plate (201).

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