CN114433974B - A resonant gap induction heating head - Google Patents
A resonant gap induction heating head Download PDFInfo
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- CN114433974B CN114433974B CN202210174881.3A CN202210174881A CN114433974B CN 114433974 B CN114433974 B CN 114433974B CN 202210174881 A CN202210174881 A CN 202210174881A CN 114433974 B CN114433974 B CN 114433974B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/04—Heating appliances
- B23K3/047—Heating appliances electric
- B23K3/0475—Heating appliances electric using induction effects, e.g. Kelvin or skin effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/002—Soldering by means of induction heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/42—Printed circuits
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Dermatology (AREA)
- General Health & Medical Sciences (AREA)
- General Induction Heating (AREA)
Abstract
本发明公开了一种谐振式间隙感应加热头，该感应加热头包括有谐振电容以及间隙加热头，谐振电容中包括有电容，间隙加热头包括有第一加热部以及第二加热部，第一加热部与第二加热部保持电连接，且第一加热部与第二加热部之间留存用于对外部工件进行感应加热的间隙；电容的其中一个极板连接并导通第一加热部，电容的另一个极板连接并导通第二加热部。相较于传统回流焊与波峰焊，本申请中采用的谐振式间隙感应加热头不仅结构简洁，其应用在具体的焊接场景中时，能取得高效、精准、稳定的焊接效果。
The present invention discloses a resonant gap induction heating head, which includes a resonant capacitor and a gap heating head, wherein the resonant capacitor includes a capacitor, and the gap heating head includes a first heating part and a second heating part, wherein the first heating part and the second heating part are electrically connected, and a gap for induction heating an external workpiece is reserved between the first heating part and the second heating part; one of the plates of the capacitor is connected to and conducts the first heating part, and the other plate of the capacitor is connected to and conducts the second heating part. Compared with traditional reflow soldering and wave soldering, the resonant gap induction heating head used in this application is not only simple in structure, but also can achieve efficient, accurate and stable welding effects when applied in specific welding scenarios.
Description
Technical Field
The invention belongs to the technical field of electromagnetic induction, and particularly relates to an induction heating head.
Background
When a circuit board or other sectional materials with larger width are subjected to surface processing, a scene that tiny-volume elements are required to be welded in batches often appears, the elements are small in size, light in weight and large in number, each element often has an expected accurate welding position, and cannot be subjected to virtual welding or error welding, so that the occasion has high requirements on welding processing.
Taking a Mini LED screen or a Micro LED screen as an example, in the manufacturing process, welding treatment is often required to be performed on a single LED light source, and correspondingly applied solder at a connecting terminal of each LED light source is melted to weld the LED light sources on a backlight substrate in an array manner. In this process, the volume of the single LED light source is very small, the positioning requirement of the connection terminal is severe, and at the same time, the whole Mini LED screen or Micro LED screen has a large size compared with the single LED light source, and a large number of single LED light sources need to be arranged in an array form on the whole Mini LED screen or Micro LED screen, so that it is seen how to cope with the large circuit scale, and the problem that the skilled person must solve is how to weld the small-sized components of the single element to the expected position.
In the prior art, reflow soldering or wave soldering is often adopted to solve the problems, when electronic components are soldered in batches in a reflow soldering mode, a proper amount of solder in proper form is required to be applied to an expected soldering position of a PCB in advance, then the surface mounted components are attached, and the solder is reflowed to meet the soldering requirement by using an external heat source to carry out group or point-by-point soldering; when electronic components are welded in batches in a wave soldering mode, tin bars are placed in a tin furnace for wave soldering, molten soldering tin is required to form wave crest to component welding, namely, molten soldering flux is required to be sprayed into solder wave crest required by design through an electric pump or an electromagnetic pump, and nitrogen can be injected into a solder pool to form the solder wave crest, so that a printed board with the components in advance is soldered with a solder pad of the printed board mechanically and electrically through the solder wave crest.
It should be noted that, when the welding form of reflow soldering or wave soldering is applied to the welding process scene of a specific micro-volume element and a target profile, the welding process often cannot obtain an ideal processing effect: when the reflow soldering is adopted for processing, the structure of the reflow soldering furnace is limited, the heating temperature is difficult to accurately regulate and control, and the conditions of incomplete melting of soldering points or over-baking of the profile are easy to occur due to insufficient temperature; the welding mode of wave soldering often accompanies the defect of high reject ratio of products, and the welding demand that a large number of single components are small, the accurate welding position of anticipated welding position is hardly handled.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide an induction heating head that provides a profile surface welding operation for a small-sized component by means of induction heating, overcomes the temperature control defect of the conventional reflow soldering with good temperature controllability, and overcomes the soldering accuracy control defect of the conventional wave soldering with good operation controllability.
Another object of the present invention is to provide a resonant induction heating head, which is constructed as a whole in a resonant structure, reduces the requirements of induction heating on the alternating frequency and the current amplitude output by an external power source, and ensures the induction heating effect safely, reliably, efficiently and surely.
It is still another object of the present invention to provide an induction heating head with a gap, which fully considers the requirements of small size of a welding object and accuracy of the expected welding position in the form of leaving a gap on the heating head, and meets the requirement of performing batch welding processing on small-volume components on the surface of a circuit board or other profile with larger width while ensuring the quality of the induction heating processing.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a resonant gap induction heating head comprises a resonant capacitor and a gap heating head;
the gap heating head comprises a first heating part and a second heating part, the first heating part is electrically connected with the second heating part, and a gap for carrying out induction heating on an external workpiece is reserved between the first heating part and the second heating part; one polar plate of the capacitor is connected with and conducts the first heating part, and the other polar plate of the capacitor is connected with and conducts the second heating part.
The induction heating technology is to generate current inside the heated material by utilizing electromagnetic induction method, and to achieve the heating purpose by means of the energy of the eddy currents, in the technical scheme provided by the application, a capacitor is arranged in the resonant capacitor, two polar plates of the capacitor are connected with two ends of the gap heating head in a certain form, the gap heating head which is electrically rendered capacitive is connected with the capacitor which is electrically rendered inductive into a resonant structure, the resonant structure has a corresponding inherent resonant frequency in electric principle, the inherent resonant frequency is determined by the capacitance of the capacitor and the inductance of the gap heating head, the resonant capacitor is connected with an external power supply after being connected with the gap heating head, the alternating frequency of alternating current outputted by the external power supply is adjusted, the resonant structure formed by the junction of the resonant capacitor and the gap heating head is approximately up to the resonant state, at the moment, the resonant structure formed by the junction of the capacitor and the gap heating head is used as a current amplifier or a voltage amplifier, the first heating part and the second heating part of the gap heating head are heated by the high frequency or the high frequency is converted from the high frequency to the high frequency part, and the high frequency part is heated by the high frequency part and the high frequency part is heated by the high frequency induction part.
According to the induction heating principle, factors such as the size and frequency of current flowing at the gap heating head, the distance between the heating head and an external workpiece, the type of material of the external workpiece to be processed and the like can directly, clearly and intuitively influence the heating effect, so that a technician selects a capacitor with the expected capacitance and the gap heating head with the expected inductance, the two are connected to obtain a resonant structure with the expected resonance form and the expected inherent resonance frequency, when the resonant structure is applied to a specific processing process, the resonant structure is driven to move by a proper external driving mechanism to reach the expected processing position, the working state of the resonant structure can be controlled by correspondingly adjusting the alternating frequency of an external power supply, the alternating current or the alternating voltage with the expected size is obtained at the gap heating head, the expected heating effect is obtained at the external workpiece, the single operation is completed, the external driving mechanism is controlled to drive the resonant structure to move to the next station, and the operation is repeated until the welding processing of all components is completed.
According to the technical scheme, the gap heating head comprises the first heating part and the second heating part, the gap is reserved between the first heating part and the second heating part, and according to analysis, alternating current is input into the gap heating head, the gap heating head can convert the alternating current into an alternating magnetic field, and because the first heating part and the second heating part are mutually close and are influenced by the proximity effect of alternating current, currents flowing in the first heating part and the second heating part can be mutually attracted and tend to be transmitted in a region around the gap, the first heating part and the second heating part are closer, the alternating frequency of the alternating current is higher, the proximity effect is more obvious, the currents are more concentrated in the region around the gap, and the alternating magnetic field converted by the currents is also concentrated in a space around the gap, so that the alternating magnetic field with the expected space shape and the space distribution can be obtained, the thin and narrow space magnetic field can be generated conveniently when the alternating current is electrified for a single time, the solder entering the effective heating range can be fused by induction of the space magnetic field, and the solder can be accurately heated and connected to the appointed position of the pin-based device. Therefore, it can be said that the skilled person selects the induction heating head with the expected capacitance and the expected inductance, and after the induction heating head is formed into the specified resonant structure, the heating effect can be correspondingly controlled only by correspondingly adjusting the alternating frequency, the current or the current of the external power supply, in the whole heating process, the resonant structure formed by the capacitance and the gap heating head correspondingly has the effect of current amplification or voltage amplification, the requirement of the device on the external power supply is not high, and the whole welding process has good temperature controllability. It is emphasized that when the welding is performed by adopting the induction heating technology, it is not necessary to construct a sealed welding space like a sealed reflow oven when the welding is performed by adopting a reflow soldering mode, but only the external power mechanism is required to carry the resonant structure for movement, and after reaching the expected processing position, the welding flux at the position can be subjected to induction heating, which is also helpful for simplifying the structure of the whole welding equipment.
In one implementation, the resonant capacitor further comprises a first copper sheet, a second copper sheet and a water cooling pipe; the first copper sheet is closely attached to one polar plate of the capacitor and is electrically conducted with the polar plate of the capacitor, and the second copper sheet is closely attached to the other polar plate of the capacitor and is electrically conducted with the polar plate of the capacitor; the water-cooled tube is closely attached to the first copper sheet and/or the second copper sheet, and the water-cooled tube is connected with the first copper sheet and/or the second copper sheet and keeps thermal conduction.
Further, the resonant capacitor further comprises a first connecting seat, a second connecting seat, a first connecting rod and a second connecting rod; the first connecting seat is arranged between the first connecting rod and the first copper sheet, and the first connecting rod is connected with the first copper sheet through the first connecting seat and is electrically conducted; the second connecting rod is connected with the second copper sheet through a second connecting seat and is electrically communicated with the second copper sheet; one end of the first connecting rod, which is away from the first connecting seat, is connected with the first heating part and is electrically conducted, and one end of the second connecting rod, which is away from the second connecting seat, is connected with the second heating part and is electrically conducted.
According to the above mode, one polar plate of the capacitor is connected with the first heating part through the first copper sheet, the first connecting seat and the first connecting rod, and the other polar plate of the capacitor is connected with the second heating part through the second copper sheet, the second connecting seat and the second connecting rod, and the capacitor and the gap heating head are combined to form a parallel resonance structure, and the natural resonance frequency of the parallel resonance structure is approximately equal to that of the parallel resonance structure: when the parallel resonance structure is applied to an alternating current environment, when the alternating frequency of an external power supply approaches the natural resonance frequency of the parallel resonance structure, the parallel resonance structure approximately reaches the resonance state, the parallel resonance structure shows the characteristics of parallel resonance, the parallel resonance structure has the corresponding quality factor, the quality factor is also related to the capacitance of a capacitor and the inductance of a gap heating head, when the parallel resonance structure approximately reaches the resonance state, the first heating part and the second heating part acquire alternating current which is multiple times of the current at the output end of the external power supply, an ideal heating effect is acquired at a designated position, the solder is melted, and designated components are welded to the designated position.
Meanwhile, the first connecting seat, the first connecting rod, the first heating part, the second connecting rod and the second connecting seat are all provided with water flow passages for allowing external cooling water to circulate, and after the water flow passages are connected, through waterways from the water cooling pipe, the first connecting seat, the first connecting rod, the first heating part, the second connecting rod and the second connecting seat to the water cooling pipe are formed inside the induction heating head. In the working process of the capacitor and the gap heating head, a large amount of heat is inevitably generated on the capacitor and the gap heating head due to the alternating high-frequency alternating current, through water flow channels are formed between the capacitor and the gap heating head by adopting the mode, continuous, timely and effective cooling measures can be provided for the induction heating head by utilizing flowing external cooling water, and the device can stably work for a long time and avoid burning loss.
In another implementation, the resonant capacitor further comprises a connecting shell and a connecting rod; the capacitor is arranged in the connecting shell, one polar plate of the capacitor is clung to the side wall of the bottom side of the connecting shell and is electrically communicated with the connecting shell, the gap heating head is arranged outside the connecting shell, and the first heating part is electrically communicated with the side wall of the top side of the connecting shell; the other polar plate of the capacitor is connected and conducted with the second heating part through the connecting rod.
Further, the resonant capacitor further comprises a transformer, and the transformer is also arranged in the connecting shell; the transformer comprises a magnetic ring and a primary winding, wherein the magnetic ring is sleeved on the connecting rod in a penetrating way, and the primary winding is coiled on the magnetic ring.
According to the mode, the primary winding of the transformer is coiled on the magnetic ring, the connecting rod penetrates through the magnetic ring, the transformer is integrally arranged in the connecting shell, then the primary winding of the transformer is connected with an external power supply, when the external power supply supplies alternating current with a certain alternating frequency to the primary winding of the transformer, the connecting rod and the connecting shell are simultaneously used as secondary windings of the transformer, alternating current with the consistent alternating frequency is induced, and as the transformer is arranged between the capacitor and the gap heating head, the capacitor is connected with the gap heating head in an ending mode through the connecting rod and the connecting shell, and the capacitor is connected with the gap heating head through the secondary winding of the transformer to form a series resonance structure according to analysis.
Similarly, the series resonant structure formed by connecting the capacitor and the gap heating head also has a corresponding natural resonant frequency, the natural resonant frequency is that when the series resonant structure is applied to an alternating current environment, alternating current with alternating frequency is supplied to a primary winding of the transformer, the secondary winding of the transformer is used as a secondary winding of the transformer to induce alternating current with the same frequency, the induced alternating current is transmitted to one polar plate of the capacitor connected with the connecting rod, the alternating current is generated at the other polar plate of the capacitor under the action of the capacitor, the alternating current is uniformly transmitted to the gap heating head along the connecting shell due to the fact that the other polar plate of the capacitor is tightly attached to the side wall of the connecting shell, the alternating current is regulated to be transmitted to the gap heating head along the connecting shell, the alternating frequency of an external power supply is regulated to reach a resonant state when the alternating frequency of the external power supply approaches the natural resonant frequency of the series resonant structure, at the moment, the series resonant structure has the characteristic of series resonance, the size of the quality factor corresponding to the capacity of the capacitor is related to the capacity resistance of the gap heating head, the capacity of the capacitor is also, the capacity of the capacitor is equal to the capacity of the capacitor, the capacity heating resistance of the capacitor is equal to the capacity of the capacity heating capacity of the capacitor, and the capacity heating device is equal to the capacity of the capacity heating voltage, and the capacity is equal to the capacity of the capacity heating device, and the capacity is equal to the capacity to the ideal capacity, and the capacity can be equal to the capacity, and the capacity can be melted, and the capacity can be equal to the capacity.
Because of the proximity effect of the alternating current, the alternating current is preferentially transmitted from the upper component to the lower component along the shortest path in the transmission process, so that a traditional single connecting wire is adopted to connect a capacitor and an inductor to be connected into a series resonance structure, when the alternating current is particularly applied to an alternating current environment, the current tends to be transmitted along a single and fixed path, and long time, the part where the current is intensively transmitted is easy to locally accumulate heat and even burn. By adopting the structure mode, the volume of the device can be reduced to the greatest extent, the transformer, the capacitor and the gap heating head are skillfully connected to form a series resonance structure, the sheet structure of the connecting shell is used for connecting the capacitor and the gap heating head, a uniform, spacious, multidirectional and various similar transmission paths are provided for current transmission, the current is conveniently transmitted to the gap heating head from the other polar plate of the capacitor in a dispersed and uniform transmission situation, and the arrangement improves the current resistance degree on a transmission line of the device, simultaneously guides the uniform transmission of alternating current, avoids the influence of the proximity effect on local heat accumulation of the device, and ensures the long-time stable operation of the device.
Meanwhile, the resonance capacitor further comprises at least one water cooling sheet, the water cooling sheets are arranged relative to the capacitor, each water cooling sheet is closely attached to one of the polar plates of the capacitor and is in thermal conduction with the polar plate of the capacitor, a water cooling channel for allowing external cooling water to circulate is formed in each water cooling sheet, and the cooling water circulating in the water cooling sheets provides timely and efficient cooling measures for the capacitor.
In the technical scheme provided by the application, the gap heating head further comprises an insulating base; the insulating base is arranged on one side, away from the external workpiece, of the first heating part and the second heating part, and the insulating base is detachably connected with the first heating part and the second heating part respectively.
And the gap heating head further comprises a mounting plate, the mounting plate is arranged on one side, deviating from the first heating part and the second heating part, of the insulating base, and the mounting plate is detachably connected with the insulating base. The insulating base provides stable and reliable structural support for the gap heating head, avoids heat accumulation deformation of the gap heating head in the working process, can also prevent the alternating magnetic field from propagating to the side by utilizing the insulating characteristic of the gap heating head, and further ensures that the alternating magnetic field generated at the gap heating head is stable and reliable. The mounting plate provides a mounting foundation for the whole induction heating head, the gap heating head and the insulating base can be stacked together by the mounting plate in the mounting plate, the mounting plate is stable in structure and can work for a long time without deformation, the mounting plate can provide a structural foundation for the external driving mechanism to be connected with the gap heating head in the external driving mechanism, and the mounting plate is convenient to connect with the external driving mechanism on the premise that the structure of the gap heating head is not damaged and the work of the gap heating head is not hindered, so that the external driving mechanism can conveniently drive the gap heating head to reach a specified processing position.
The application has the advantages that: compared with the traditional reflow soldering and wave soldering, the resonant gap induction heating head adopted in the application has a simple structure, and can obtain efficient, accurate and stable welding effect when being applied to a specific welding scene.
Drawings
Fig. 1 is a schematic structural diagram of a resonant gap induction heating head according to a first embodiment, which is connected to an external power source B through an external transmission line a.
Fig. 2 is a schematic diagram of the overall structure of a resonant gap induction heating head according to a first embodiment.
Fig. 3 is a schematic diagram of an internal structure of a resonant gap induction heating head according to an embodiment.
Fig. 4 is a schematic structural diagram of a gap heating head in a resonant gap induction heating head according to an embodiment.
Fig. 5 is a schematic diagram of the overall structure of a resonant gap induction heating head according to the second embodiment.
Fig. 6 is a schematic view of a first view angle partial structure of a resonant gap induction heating head according to a second embodiment.
Fig. 7 is a schematic view of a second view angle partial structure of a resonant gap induction heating head according to the second embodiment.
Fig. 8 is a schematic view of the overall structure of a resonant gap induction heating head provided in the third embodiment.
Fig. 9 is a schematic view of a first view angle structure of a resonant capacitor in a resonant gap induction heating head according to the third embodiment.
Fig. 10 is a schematic view of a second view angle structure of a resonant capacitor in a resonant gap induction heating head according to the third embodiment.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
Detailed Description
Please refer to fig. 1-4.
In this embodiment, a resonant gap induction heating head is provided, which includes a resonant capacitor 1 and a gap heating head 2, where the resonant capacitor 1 is disposed above the gap heating head 2, one of the polar plates of the resonant capacitor 1 is connected to one end of the gap heating head 2 and keeps electrical conduction, and the other polar plate of the resonant capacitor 1 is connected to the other end of the gap heating head 2 and keeps electrical conduction.
Further, in this embodiment, the resonant capacitor 1 includes a capacitor 11, a first copper sheet 12, a second copper sheet 13, and a water cooling tube 14; the first copper sheet 12 is closely attached to one of the polar plates of the capacitor 11, and the second copper sheet 12 is closely attached to the other polar plate of the capacitor 11; the water-cooled tube 14 is closely attached to the first copper sheet 12 and/or the second copper sheet 13, and the water-cooled tube 14 is connected to the first copper sheet 12 and/or the second copper sheet 13 and keeps heat conduction.
Further, in this embodiment, the resonant capacitor 1 further includes a first adapter 15, a first adapter 16, a second adapter 17, and a second adapter 18; the first adapter 15 and the second adapter 17 are both arranged on one side of the capacitor 11, the first adapter 15 is connected with the first copper sheet 12 and keeps electric conduction, and the second adapter 17 is connected with the second copper sheet 13 and keeps electric conduction; the first transfer tube 16 and the second transfer tube 18 are respectively reserved with a channel for the circulation of external cooling water, one end of the first transfer tube 16 is connected with the first transfer joint 15 and keeps electric conduction, and the other end is connected with one end of the gap heating head 2 and keeps electric conduction; one end of the second adapter tube 18 is connected with the second adapter 17 and keeps electric conduction, and the other end of the second adapter tube is connected with the other end of the gap heating head 2 and keeps electric conduction; after connection, the water cooling pipe 14 is in waterway communication with the first transfer pipe 16 and the second transfer pipe 18, respectively.
Further, in the present embodiment, the gap heating head 2 includes a first heating portion 21 and a second heating portion 22, the first heating portion 21 and the second heating portion 22 are kept parallel, and a gap C for induction heating is left between the first heating portion 21 and the second heating portion 22.
Further, in the present embodiment, the gap heating head 2 further includes a connection portion 23, wherein the first heating portion 21, the second heating portion 22, and a channel D through which external cooling water flows are reserved in the connection portion 23, the connection portion 23 is disposed between the first heating portion 21 and the second heating portion 22, and the connection portion 23 is connected to the first heating portion 21 and the second heating portion 22, respectively, and is kept in electrical conduction; after the connection, the first heating portion 21, the connection portion 23, and the second heating portion 22 form a through cooling water passage.
Further, in this embodiment, an end of the first heating portion 21 facing away from the connecting portion 23 is connected to the first switching tube 15 and is kept electrically conductive; one end of the second heating part 22, which is away from the connecting part 23, is connected with the second switching tube 18 and keeps electric conduction; after the connection, a passage for the cooling water outside the container to circulate is formed between the water cooling pipe 14, the first transfer pipe 16, the first heating portion 21, the connection portion 23, the second heating portion 22, and the second transfer pipe 18.
Detailed Description
Please refer to fig. 5-7.
In this embodiment, a resonant gap induction heating head is provided, the induction heating head includes a resonant capacitor 1 'and a gap heating head 2', the resonant capacitor 1 'includes a capacitor 11', the gap heating head includes a first heating portion 21 'and a second heating portion 22', the first heating portion 21 'and the second heating portion 22' are electrically connected, and a gap for induction heating an external workpiece is reserved between the first heating portion 21 'and the second heating portion 22'; one of the plates of the capacitor 11 'is connected to and conducts the first heating portion 21', and the other plate of the capacitor 11 'is connected to and conducts the second heating portion 22'.
Further, in this embodiment, the resonant capacitor 1 'further includes a first copper sheet 12', a second copper sheet 13 'and a water cooling tube 14'; the first copper sheet 12 'is closely attached to one of the polar plates of the capacitor 11' and is electrically conducted with the polar plate, and the second copper sheet 13 'is closely attached to the other polar plate of the capacitor 11' and is electrically conducted with the polar plate; the water cooling pipe 14 'is closely attached to the first copper sheet 12' and/or the second copper sheet 13 ', and the water cooling pipe 14' is connected with the first copper sheet 12 'and/or the second copper sheet 13' and keeps thermal conduction.
Further, in this embodiment, the resonant capacitor 1 ' further includes a first seat 15 ', a second seat 16 ', a first connecting rod 17 ' and a second connecting rod 18 '; the first connecting seat 15 ' is arranged between the first connecting rod 17 ' and the first copper sheet 12 ', and the first connecting rod 17 ' is connected with the first copper sheet 12 ' through the first connecting seat 15 ' and is electrically communicated with the first copper sheet 12 '; the second connecting rod 18 ' is connected with the second copper sheet 13 ' through the second connecting seat 16 ' and is electrically conducted; one end of the first connecting rod 17 'away from the first connecting seat 15' is connected with the first heating part 21 'and is electrically conducted, and one end of the second connecting rod 18' away from the second connecting seat 16 'is connected with the second heating part 22' and is electrically conducted.
Further, in the present embodiment, the first joint base 15 ', the first joint rod 17', the first heating portion 21 ', the second heating portion 22', the second joint rod 18 ', and the second joint base 16' each have a water flow path (not shown) through which external cooling water flows, and after the joining, a water flow path is formed through the induction heating head from the water cooling pipe 14 ', the first joint base 15', the first joint rod 17 ', the first heating portion 21', the second heating portion 22 ', the second joint rod 18', and the second joint base 16 'to the water cooling pipe 14'.
Further, in this embodiment, the gap heating head further includes an insulating base 23'; the insulating base 23 'is disposed on a side of the first heating portion 21' and the second heating portion 22 'facing away from the external workpiece, and the insulating base 23' is detachably connected to the first heating portion 21 'and the second heating portion 22', respectively.
Further, in this embodiment, the gap heating head further includes a mounting plate 24 ', where the mounting plate 24 ' is disposed on a side of the insulating base 23 ' away from the first heating portion 21 ' and the second heating portion 22 ', and the mounting plate 24 ' is detachably connected to the insulating base 23 '.
Detailed Description
Please refer to fig. 8-10.
In this embodiment, a resonant gap induction heating head is provided, where the induction heating head includes a resonant capacitor 1″ and a gap heating head 2″, the resonant capacitor 1″ includes a capacitor 11″ and the gap heating head 2″ includes a first heating portion 21″ and a second heating portion 22″, the first heating portion 21″ and the second heating portion 22″ are electrically connected, and a gap for induction heating an external workpiece is reserved between the first heating portion 21″ and the second heating portion 22″; one of the plates of the capacitor 11 ' is connected to and conducts the first heating portion 21 ', and the other plate of the capacitor 11 ' is connected to and conducts the second heating portion 22 ".
Further, in this embodiment, the resonant capacitor 2″ further includes a connection shell 12″ and a connection rod 13″; the capacitor 11 "is arranged in the connection housing 12", and one of the polar plates of the capacitor 11 ' is tightly attached to the side wall of the bottom side of the connecting shell 12″ and is electrically conducted with the same, the gap heating head 2' is arranged outside the connecting shell 12 ', and the first heating part 21' is electrically connected with the top side wall of the connecting shell 12 '; the other electrode plate of the capacitor 11 ' is connected and conducted with the second heating portion 22 ' through the connecting rod 13 '.
Further, in this embodiment, the resonant capacitor 1″ further includes a transformer 14″, and the transformer 14″ is also disposed in the connection housing 12″; the transformer 14 "includes a magnetic ring 141" and a primary winding 142 ", the magnetic ring 141 'is sleeved on the connecting rod 13', and the primary winding 142 'is coiled on the magnetic ring 141'.
Further, in this embodiment, the resonant capacitor 1″ further includes at least one water cooling sheet 15″, where the water cooling sheet 15″ is disposed opposite to the capacitor 11″, and each water cooling sheet 15″ is closely attached to and thermally connected to one of the plates of the capacitor 11″, and a water cooling channel for allowing external cooling water to circulate is provided in the interior of each water cooling sheet 15″.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110429918A (en) * | 2019-08-27 | 2019-11-08 | 深圳市双平电源技术有限公司 | A kind of transformer, capacitor and inductance engage the structure to form series resonance |
| CN213938371U (en) * | 2020-12-07 | 2021-08-10 | 深圳市双平电源技术有限公司 | Low-power induction heating head |
| CN214675756U (en) * | 2020-12-07 | 2021-11-09 | 深圳市双平电源技术有限公司 | High-power induction heating head |
| CN217316304U (en) * | 2022-02-25 | 2022-08-30 | 广东粤灿半导体设备有限公司 | Resonant type gap induction heating head |
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| IT1249273B (en) * | 1991-04-08 | 1995-02-21 | Giovanni Manneschi | COMPACT INDUCTIVE HEATER FOR SMALL WELDING OF METAL PARTS |
| KR101327167B1 (en) * | 2012-04-16 | 2013-11-06 | 세향산업 주식회사 | Working head for high frequency induction heating |
| CN209006864U (en) * | 2018-11-12 | 2019-06-21 | 苏州市汇邦自动化系统有限公司 | Solar battery sheet stitch welding soldering tip, stitch welding equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429918A (en) * | 2019-08-27 | 2019-11-08 | 深圳市双平电源技术有限公司 | A kind of transformer, capacitor and inductance engage the structure to form series resonance |
| CN213938371U (en) * | 2020-12-07 | 2021-08-10 | 深圳市双平电源技术有限公司 | Low-power induction heating head |
| CN214675756U (en) * | 2020-12-07 | 2021-11-09 | 深圳市双平电源技术有限公司 | High-power induction heating head |
| CN217316304U (en) * | 2022-02-25 | 2022-08-30 | 广东粤灿半导体设备有限公司 | Resonant type gap induction heating head |
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