Air-cooled induction power supply structure

Abstract

According to the air-cooled induction power supply structure provided by the utility model, the high-frequency induction power supply structure is formed through the electrical apparatus elements arranged in the cabinet, when the power supply works, air enters the cabinet through the right side surface of the shutter hole I and the left side surface of the shutter hole II arranged at the lower part of the cabinet, and the air forms primary convection when flowing through the mounting plate II; when flowing through the accommodating cavity, the first convection current forms second convection current, and is finally blown out by the fan, so that heat in the case is brought out of the case, heat dissipation is realized, the internal structure of the induction power supply case is simple, and the mechanical strength of the whole equipment is high; the fan is used for dissipating heat inside the case, the heat dissipation effect is good, the service life of internal electrical components is not affected, an air cooling mode is adopted for heat dissipation, cooling liquid is not needed, and the problem of liquid leakage does not need to be worried about.

Description

TECHNICAL FIELD

[0001] The utility model belongs to induction power supply technical field, concretely relates to a structure of air -cooled induction power supply. BACKGROUND

[0002] High frequency induction heating equipment is also called heat treatment equipment industrial furnace, high frequency induction power supply and induction heating technology is the highest efficiency, the fastest speed and low consumption environmental protection technology in the field of metal material heating at present, it has been widely applied in the heat processing, heat treatment, hot assembly and welding, smelting and other processes of metal materials in various trades, it can not only heat the whole workpiece, but also can heat the workpiece locally, can realize the deep heat penetration of workpiece, and can only heat the surface of workpiece, surface layer concentration; it can not only heat the metal material directly, but also can heat the nonmetal material indirectly. High frequency induction power supply is that three-phase high frequency alternating current is changed into direct current through rectifier circuit, then is changed into single-phase high frequency alternating current through inverter circuit and is supplied to high frequency coreless induction furnace, then the electromagnetic induction principle is utilized, the workpiece is placed in the alternating magnetic field to produce eddy current and heat, and the heating requirements such as smelting, quenching and heat penetration are achieved.

[0003] When high-power high-frequency induction heating power supply works, a large amount of heat will be generated due to a large number of electrical power components arranged inside, if the heat cannot be dissipated in time, the normal operation of electrical components will be affected, even the electrical components will be damaged or accidents will be caused. At present, the high-power high-frequency induction power supply structure is complex, the mechanical strength of the overall equipment is low, the heat dissipation effect is poor, and the service life of internal electrical components is affected.

[0004] Therefore, the technical problem to be solved by the utility model is that the high-power high-frequency electromagnetic induction power supply structure is complex, the mechanical strength of the overall equipment is low, the heat dissipation effect is poor, and the service life of internal electrical components is affected. UTILITY MODEL CONTENTS

[0005] In order to solve the technical problems that the high-power high-frequency electromagnetic induction power supply structure is complex, the mechanical strength of the overall equipment is low, the heat dissipation effect is poor, and the service life of internal electrical components is affected, the utility model provides a structure of air -cooled induction power supply.

[0006] The specific scheme is as follows:

[0007] The air-cooled induction power supply structure comprises a cabinet fixed on a base, a cable input port is arranged on the back of the base, and an input lead in the cabinet extends outside through the cable input port; an electric wood strip, a mounting plate one and a mounting plate two are sequentially arranged inside the cabinet from top to bottom, an output transformer is arranged on the electric wood strip, and the output transformer comprises an output transformer output end; a capacitor copper plate is arranged on the mounting plate one, a circuit breaker, a rectifier bridge and an IGBT are arranged on the mounting plate two; a fan bracket is arranged on the back of the mounting plate one, a fan is arranged inside the fan bracket, and the fan is electrically connected with the transformer;

[0008] The input lead is electrically connected with the circuit breaker through the cable input port, the circuit breaker is electrically connected with the rectifier bridge, the rectifier bridge is electrically connected with the IGBT, the IGBT is electrically connected with the capacitor copper plate, the capacitor copper plate is electrically connected with the input end of the output transformer, and the output end of the output transformer is electrically connected with a lower component through an output port arranged on the top cover plate of the cabinet.

[0009] The cabinet comprises a right side and a left side, louver holes one are arranged on the right side, and louver holes two are arranged on the left side.

[0010] An L-shaped mounting plate one is arranged at the lower part of the electric wood strip, the mounting plate one comprises a vertical face and a horizontal face fixedly connected, and a control circuit board is arranged on the front face of the vertical face; a fan bracket is fixedly connected to the vertical face through a bakelite plate one arranged on the back, a fan is arranged inside the fan bracket, a containing cavity is formed between the vertical face, the horizontal face, the bakelite plate one and the fan bracket, a capacitor bracket and a capacitor copper plate are arranged in the containing cavity, the capacitor bracket and the capacitor copper plate are both fixed on the horizontal face, the capacitor copper plate is electrically connected with the input end of the output transformer, and capacitors are arranged between the capacitor copper plates.

[0011] A mounting plate two is arranged at the lower part of the horizontal face of the mounting plate one, the mounting plate two comprises a first vertical face at the upper part and a second vertical face at the lower part, the first vertical face and the second vertical face are fixedly connected through a first horizontal face, so that the mounting plate two forms a stepped shape; a heat dissipation plate is arranged on the front face of the first vertical face, a rectifier bridge is arranged at the left end of the heat dissipation plate, an IGBT is arranged at the right end of the rectifier bridge, a block capacitor is correspondingly arranged at the lower end of the IGBT, the block capacitor is arranged on a block capacitor bracket, and the block capacitor bracket is fixed on the first horizontal face.

[0012] A relay module and a terminal are arranged on the front face of the second vertical face at the upper part, the relay module is electrically connected with the terminal through a lead, and the relay module and the terminal are both electrically connected with the control circuit board through the lead; a circuit breaker, an air switch and a transformer are sequentially arranged on the front face of the second vertical face at the lower part and on the left side, the air switch is electrically connected with the transformer through a lead, and the transformer is electrically connected with the control circuit board through a lead.

[0013] The cabinet comprises a cabinet front door, a touch screen is arranged on the upper portion of the cabinet front door, a start button, a stop button and an emergency stop button are sequentially arranged from left to right below the touch screen, and the touch screen, the start button, the stop button and the emergency stop button are electrically connected to a control circuit board through wires; a cam switch is arranged on the lower portion of the stop button, and the cam switch is electrically connected to a circuit breaker and an air switch through wires.

[0014] The gap is 30-100mm between the bakelite strip, the mounting plate one and the mounting plate two and the two side faces of the cabinet.

[0015] The cabinet is provided with a supporting strip.

[0016] The cabinet has the advantages that:

[0017] The air-cooled induction power supply structure has the advantages that: the internal structure of the induction power supply cabinet is simple, and the mechanical strength of the whole device is high; the cabinet interior is cooled by the fan, the cooling effect is excellent, the service life of internal electrical components is not affected, the air-cooled cooling mode is adopted, and no cooling liquid is needed, so that the problem of liquid leakage is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a perspective view of one direction of the cabinet of the utility model.

[0019] Figure 2 Fig. 2 is a perspective view of another direction of the cabinet of the utility model.

[0020] Figure 3 Fig. 3 is an internal front view of the cabinet with a hidden front door of the utility model.

[0021] Figure 4 Fig. 4 is an internal side view of the cabinet with a hidden front door of the utility model.

[0022] Figure 5 Fig. 5 is an internal side view of the cabinet of the utility model.

[0023] The components include: 1. Front door of the chassis; 12. Touch screen; 13. Start button; 14. Stop button; 15. Emergency stop button; 16. Cam switch; 2. Base; 21. Cable input port; 3. Right side panel; 31. Inspection port; 32. Louver hole 1; 4. Top cover; 41. Lifting ring; 42. Output port; 5. Rear door of the chassis; 51. Fan; 53. Phenolic rebar 1; 54. Capacitor bracket; 55. Capacitor copper plate; 56. Fan bracket; 6. Bakelite strip; 61. Output transformer; 62. Output transformer output terminal; 7. Mounting plate 1; 71. Control circuit board; 8. Mounting plate 2; 81. Heat sink; 811. Rectifier bridge; 812. IGBT; 813. Square capacitor; 814. Square capacitor bracket; 82. Relay module; 82. Terminal block; 83. Circuit breaker; 84. Air switch; 85. Transformer; 86. Phenolic rebar 2; 87. Left side panel; 9. Louver hole 2; 92. Support strip. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the implementation of this utility model, not all of it. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] like Figures 1-5 As shown, this utility model provides a wind-cooled induction power supply structure, including a chassis, which is fixed on a base 2. A cable input port 21 is provided at the rear of the base 2, and the input wires inside the chassis pass through the cable input port 21 and extend to the outside. Inside the chassis, from top to bottom, there are bakelite strips 6, mounting plate one 7, and mounting plate two 8. An output transformer 61 is provided on the bakelite strip 6, and the output transformer 61 includes an output terminal 62. A capacitor copper plate 55 is provided on the mounting plate one 7, and a circuit breaker 84, a transformer 86, a rectifier bridge 811, and an IGBT 812 are provided on the mounting plate two 8. A fan bracket 56 is provided on the back of the mounting plate one 7, and a fan 51 is installed inside the fan bracket 56. The fan 51 is electrically connected to the transformer 86.

[0026] The cable input port 21 is electrically connected to the circuit breaker 84, the circuit breaker 84 is electrically connected to the rectifier bridge 811, the rectifier bridge 811 is electrically connected to the IGBT 812, the IGBT 812 is electrically connected to the capacitor copper plate 55, the capacitor copper plate 55 is electrically connected to the input terminal of the output transformer 61, and the output terminal 62 of the output transformer is electrically connected to the lower-level components through the output port 42 provided on the top cover plate 4 of the chassis.

[0027] like Figure 2 As shown, the base 2 is a three-sided enclosure structure welded from three channel steels. The empty side is the cable input port 21, through which the input wires inside the chassis pass and extend to the outside.

[0028] The utility model provides a kind of air-cooled induction power supply structure, and the internal structure of induction power supply case is simple, and the mechanical strength of overall equipment is high;Fan is utilized to the heat dissipation of case interior, and the heat dissipation effect is excellent, and the service life of internal electrical components will not be affected, and air-cooled mode is used to radiate heat, without coolant, and there is no need to worry about leakage problem.

[0029] The circuit breaker protects the circuit, the input AC is converted to DC by the rectifier bridge, the energy conversion efficiency is improved by IGBT, the capacitor copper plate stores energy and filters interference signals, and the output voltage is adjusted by the transformer to the lower components, and the lower components are affected.

[0030] As shown in Figure 1 , Figure 2 and Figure 4 , the case includes a right side 3 and a left side 9, the right side 3 is provided with louver hole one 32, and the left side 9 is provided with louver hole two 92, air is introduced into the case through louver hole one 32 and louver hole two 92, louver hole can effectively increase air circulation, reduce the stuffy feeling of enclosed space, and reduce the accumulation of odor, and keep the air fresh. Specifically, the upper part of the right side 3 is provided with an access hole 31, the case can be repaired through the access hole 31, and the lower part of the right side 3 is provided with louver hole one 32; the lower part of the left side 9 is provided with louver hole two 92.

[0031] As shown in Figures 3-5 , the lower part of the baltic birch strip 6 is provided with an L-shaped mounting plate one 7, the mounting plate one 7 includes a vertical surface and a horizontal surface fixedly connected, and the vertical surface is provided with a control circuit board 71 on the front surface; the vertical surface is fixedly connected with a fan bracket 56 through a bakelite plate one 53 arranged on the back, the fan bracket 56 is internally provided with a fan 51, and a receiving cavity is formed between the vertical surface, the horizontal surface, the bakelite plate one 53 and the fan bracket 56, the receiving cavity is provided with a capacitor bracket 54 and a capacitor copper plate 55, the capacitor bracket 54 and the capacitor copper plate 55 are both fixedly connected with the horizontal surface, the capacitor copper plate 55 is electrically connected with the input end of the output transformer 61, and a capacitor is arranged between the capacitor copper plates, and the main function of the capacitor copper plate is to store energy and filter interference signals.

[0032] As shown in Figure 3 and Figure 4As shown, the horizontal surface lower part of the mounting plate one 7 is provided with a mounting plate two 8, the mounting plate two 8 includes a first vertical surface of the upper part and a second vertical surface of the lower part, the first vertical surface and the second vertical surface are fixedly connected through the first horizontal surface, so that the mounting plate two 8 forms a stepped shape; the front surface of the first vertical surface is provided with a heat dissipation plate 81, the left end of the heat dissipation plate 81 is provided with a rectifier bridge 811, the right end of the rectifier bridge 811 is provided with an IGBT 812, a square capacitor 813 is correspondingly arranged at the lower end of the IGBT 812, the square capacitor 813 is arranged on a square capacitor support 814, and the square capacitor support 814 is fixed on the first horizontal surface.

[0033] Preferably, the IGBT 812 is provided with three, and each IGBT 812 is correspondingly provided with a group of square capacitors 813 at the lower end, each group of square capacitors 813 is arranged on two square capacitor supports 814, and the square capacitor supports 814 are fixed on the first horizontal surface.

[0034] The main function of the rectifier bridge is to convert alternating current into direct current. IGBT is a kind of compound full-control voltage drive power semiconductor device, which combines the high input impedance of metal-oxide-semiconductor field effect transistor MOSFET and the low on-voltage drop of bipolar transistor BJT, so that IGBT can work reliably under high voltage and large current conditions, IGBT can effectively improve the energy conversion efficiency and reduce the heat generation, thereby reducing the operation cost of the whole system; it is suitable for high voltage direct current system. Square capacitor can store electric charge and release these electric charges when needed to meet the energy demand in the circuit; square capacitor can also filter out the alternating component in the power supply, so that the direct current becomes smooth, the larger the capacitance, the easier the low frequency passes, while the high frequency component is filtered out.

[0035] As shown in Figure 3 and Figure 4 , the front upper part of the second vertical surface is provided with a relay module 82 and a wiring terminal 83, the relay module 82 is electrically connected to the wiring terminal 83 through the wire, and the relay module 82 and the wiring terminal 83 are both electrically connected to the control circuit board 71 through the wire; the lower left side of the front surface of the second vertical surface is sequentially provided with a circuit breaker 84, an air switch 85 and a transformer 86, the air switch 85 is electrically connected to the transformer 86 through the wire, and the transformer 86 is electrically connected to the control circuit board 71 through the wire.

[0036] As shown in Figure 5 , the lower surface of the fan support 56 and the back of the second vertical surface are provided with a second bakelite plate 87.

[0037] The circuit breaker can be used for power distribution, can turn on or turn off the load circuit, protects the motor and power line; can cut off the fault circuit to avoid causing a larger unexpected safety accident, to ensure the safe use of user electrical equipment. Air switch is a kind of circuit breaker, which automatically disconnects when the current in the circuit exceeds the rated current. It can complete the contact and break the circuit, and at the same time, it can protect the short circuit, serious overload and under voltage of the circuit or electrical equipment. Transformer can convert high voltage into low voltage, or convert low voltage into high voltage; transformer can not only change voltage, but also change current, by adjusting the turns ratio of the coil, the current can be increased or decreased to meet the needs of different loads. The relay module can control large current through small current, realize automatic adjustment and safety protection function; can control multiple electrical equipment at the same time, improve the efficiency and accuracy of electrical control; can realize the conversion between voltage and current parameters to control high power load.

[0038] As shown in Figure 1 The cabinet includes a cabinet front door 1, a touch screen 12 is arranged on the upper part of the cabinet front door 1, a start button 13, a stop button 14 and an emergency stop button 15 are arranged in sequence from left to right below the touch screen 12, and the touch screen 12, the start button 13, the stop button 14 and the emergency stop button 15 are electrically connected to the control circuit board 71 through wires; the lower part of the stop button 14 is provided with a cam switch 16, and the cam switch 16 is electrically connected to the circuit breaker 84 and the air switch 85 through wires.

[0039] A door handle is arranged on the right side of the cabinet front door 1 to open and close the cabinet front door 1.

[0040] As shown in Figure 1 and Figure 2 The cabinet further includes a top cover plate 4 and a cabinet back door 5; a lifting ring 41 is arranged at each corner of the top cover plate 4, and an output port 42 is arranged on one side of the top cover plate 4; two fans 51 are arranged on the cabinet back door 5.

[0041] Gaps are respectively formed between the bakelite strips 6, the mounting plate one 7 and the mounting plate two 8 and the two side surfaces of the cabinet, and the gap is 30-100mm; if the gap is too small, the air volume is small, the air flow in the cabinet is not good, and the heat dissipation effect is not good; if the gap is too large, the air entering the gap from the louver hole one 32 and the louver hole two 92 will flow upward directly, and will not flow through the electrical elements, and the heat dissipation effect of the electrical elements arranged on the middle mounting plate is not good.

[0042] As shown in Figure 5As shown, the cabinet is provided with support bars 10 for supporting and reinforcing, the upper support bars 10 are provided with bakelite bars 6 perpendicular to the support bars 10, the bakelite bars 6 are provided with output transformers 61, the output transformers 61 include output transformer output ends 62, and the output transformers 61 are used for changing AC voltage.

[0043] The electrical elements are centrally arranged in the cabinet, so that the whole machine has high mechanical strength and compact structure, the louver holes are arranged at the lower part of the side surface of the cabinet, the external air enters the cabinet through the louver holes, and the air flows through the electrical elements arranged in the cabinet and is blown out by the fan, so that the heat dissipation of the internal components of the cabinet is effectively realized.

[0044] The specific working process of the utility model is as follows:

[0045] The electrical elements arranged in the cabinet form a high-frequency induction power supply structure, when the power supply works, the air enters the cabinet through the right side surface of the louver hole one 32 and the left side surface of the louver hole two 92 arranged at the lower part of the cabinet, that is, the gap between the two side surfaces of the cabinet and the mounting plate in the cabinet, the air forms a first convection when flowing through the mounting plate two 8, forms a second convection when flowing through the accommodating cavity, and finally is blown out by the fan 51 to take the heat in the cabinet to the outside of the cabinet, so that heat dissipation is realized.

[0046] Specifically, the air entering from the louver hole one 32 is divided into two paths, one path of air flows upward directly after entering the gap, and the other path of air flows through the electrical elements arranged on the mounting plate two 8 and flows to the left side surface of the cabinet, mixes with the air on the left side, and the mixed air continues to flow upward until flowing through the accommodating cavity and is blown out of the cabinet by the fan 51; the air entering from the louver hole two 92 is divided into two paths, one path of air flows upward directly after entering the gap, and the other path of air flows through the electrical elements arranged on the mounting plate two 8 and flows to the right side surface of the cabinet, mixes with the air on the right side, and the mixed air continues to flow upward until flowing through the accommodating cavity and is blown out of the cabinet by the fan 51; in the whole process, the air forms a first convection when flowing through the mounting plate two 8, and forms a second convection in the accommodating cavity, so that the heat dissipation effect is good.

[0047] The technical means disclosed by the utility model scheme are not limited to the technical means disclosed by the above-mentioned embodiments, and also include technical schemes composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. A structure of air-cooled induction power supply, comprising a cabinet fixed on a base (2), characterized in that: The base (2) is provided with a cable input port (21) at the back, and the input lead inside the cabinet extends outside through the cable input port (21); The cabinet is provided with a baltic pine strip (6), a mounting plate one (7) and a mounting plate two (8) from top to bottom, the baltic pine strip (6) is provided with an output transformer (61), the output transformer (61) comprises an output transformer output end (62); the mounting plate one (7) is provided with a capacitor copper plate (55), the mounting plate two (8) is provided with a circuit breaker (84), a rectifier bridge (811) and an IGBT (812); the mounting plate one (7) is provided with a fan bracket (56) at the back, the fan bracket (56) is internally provided with a fan (51), and the fan (51) is electrically connected with the transformer (86); The input lead is electrically connected with the circuit breaker (84) through the cable input port (21), the circuit breaker (84) is electrically connected with the rectifier bridge (811), the rectifier bridge (811) is electrically connected with the IGBT (812), the IGBT (812) is electrically connected with the capacitor copper plate (55), the capacitor copper plate (55) is electrically connected with the input end of the output transformer (61), and the output transformer output end (62) is electrically connected with a lower component through an output port (42) arranged on the cabinet top cover (4).

2. The air-cooled induction power supply structure of claim 1, wherein: The cabinet comprises a right side (3) and a left side (9), the right side (3) is provided with a louver one (32), and the left side (9) is provided with a louver two (92).

3. The air-cooled induction power supply structure of claim 1, wherein: The baltic pine strip (6) is provided with the mounting plate one (7) in an L shape at the lower part, the mounting plate one (7) comprises a vertical surface and a horizontal surface fixedly connected, and the vertical surface is provided with a control circuit board (71) at the front; the vertical surface is fixedly connected with the fan bracket (56) through a bakelite plate one (53) arranged at the back, the fan bracket (56) is internally provided with a fan, and a containing cavity is formed between the vertical surface, the horizontal surface, the bakelite plate one (53) and the fan bracket (56), the containing cavity is provided with a capacitor support (54) and a capacitor copper plate (55), the capacitor support (54) and the capacitor copper plate (55) are both fixed on the horizontal surface, the capacitor copper plate (55) is electrically connected with the input end of the output transformer (61), and capacitors are arranged between the capacitor copper plates (55).

4. The air-cooled induction power supply structure of claim 3, wherein: The horizontal surface of the mounting plate one (7) is provided with the mounting plate two (8) at the lower part, the mounting plate two (8) comprises a first vertical surface at the upper part and a second vertical surface at the lower part, the first vertical surface and the second vertical surface are fixedly connected through a first horizontal surface, so that the mounting plate two (8) forms a stepped shape; the first vertical surface is provided with a heat dissipation plate (81) at the front, the heat dissipation plate (81) is provided with the rectifier bridge (811) at the left end, the rectifier bridge (811) is provided with the IGBT (812) at the right end, a block capacitor (813) is correspondingly arranged at the lower end of the IGBT (812), the block capacitor (813) is arranged on a block capacitor support (814), and the block capacitor support (814) is fixed on the first horizontal surface.

5. The air-cooled induction power supply structure of claim 4, wherein: The second vertical face upper part is provided with a relay module (82) and a wiring terminal (83), the relay module (82) is electrically connected with the wiring terminal (83) through a wire, and the relay module (82) and the wiring terminal (83) are both electrically connected with the control circuit board (71) through a wire; the second vertical face lower part left side is sequentially provided with a circuit breaker (84), an air switch (85) and a transformer (86), the air switch (85) is electrically connected with the transformer (86) through a wire, and the transformer (86) is electrically connected with the control circuit board (71) through a wire.

6. The air-cooled induction power supply structure of claim 1, wherein: The cabinet includes a cabinet front door (1), the cabinet front door (1) upper part is provided with a touch screen (12), the front of the touch screen (12) is sequentially provided with a start button (13), a stop button (14) and an emergency stop button (15) from left to right, and the touch screen (12), the start button (13), the stop button (14) and the emergency stop button (15) are all electrically connected with the control circuit board (71) through a wire; the lower part of the stop button (14) is provided with a cam switch (16), and the cam switch (16) is electrically connected with the circuit breaker (84) and the air switch (85) through a wire.

7. The air-cooled induction power supply structure of claim 1, wherein: The bakelite strip (6), the mounting plate one (7) and the mounting plate two (8) and the two sides of the cabinet are respectively formed with gaps, and the gap is 30-100mm.

8. The air-cooled induction power supply structure of claim 1, wherein: The cabinet is provided with a support strip (10).

Images