CN213938371U - Low-power induction heating head - Google Patents
Low-power induction heating head Download PDFInfo
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- CN213938371U CN213938371U CN202022975495.3U CN202022975495U CN213938371U CN 213938371 U CN213938371 U CN 213938371U CN 202022975495 U CN202022975495 U CN 202022975495U CN 213938371 U CN213938371 U CN 213938371U
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- joint
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- 230000006698 induction Effects 0.000 title claims abstract description 117
- 238000010438 heat treatment Methods 0.000 title claims abstract description 69
- 239000003990 capacitor Substances 0.000 claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 62
- 238000001816 cooling Methods 0.000 claims description 38
- 239000004020 conductor Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 17
- 229910052751 metal Inorganic materials 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 239000000498 cooling water Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses an induction heating head, which comprises an induction coil and a capacitor assembly, wherein the capacitor assembly comprises a capacitor; two pole plates of the capacitor are respectively fixedly connected with two ends of the induction coil and are kept electrically conducted; the two polar plates of the capacitor are respectively and electrically conducted with the two output ends of the external alternating power supply. Compared with the prior art, the utility model provides a miniwatt induction heating head structure adopts electric capacity and this body coupling of induction coil to form parallel resonance structure, utilizes parallel resonance structure's circuit characteristic, obtains the high frequency alternating current of suitable amplitude on the induction coil body, and then realizes the miniwatt induction heating of outside metal work piece, and the device is whole small, the quality is light, the removal is convenient, easy to maintain, has made good induction heating effect in metal work piece's miniwatt heating occasion.
Description
Technical Field
The utility model belongs to the technical field of induction heating, in particular to induction heating head structure.
Background
The induction heating technology is based on Faraday's law of electromagnetic induction, and has been increasingly applied to metal processing scenes such as diathermy, smelting, quenching and the like in recent years due to the characteristics of good controllability, high automation degree, high heating efficiency and the like. In various metal processing scenes, such as specific industrial occasions of gear quenching, copper pipe welding and the like, rapid and accurate heating is generally required, so that the induction heating equipment applied to the industrial occasions is required to have the characteristics of high-frequency voltage output and low-power heating.
The prior art induction heating apparatus is generally set up as follows: the device is provided with a near-end converter, a transmission cable and an induction heating head, wherein the near-end converter is connected to an external three-phase network voltage, and the near-end converter is connected with the induction heating head through the transmission cable. In the use, near-end converter sets up near outside three-phase network crimping mouth, and induction heating head designs for the rifle type usually, and the technical staff can hand induction heating head, or installs induction heating head on mobilizable processing manipulator, removes induction heating head, does induction heating to the metal work piece of demand position and handles.
Specifically, the near-end converter comprises a power supply conversion module and a step-up transformer, the induction heating head comprises a step-down transformer and an induction coil, external three-phase network voltage is input into the power supply conversion module and then outputs alternating voltage with a certain amplitude and a certain frequency, the alternating voltage is boosted by the step-up transformer and then is transmitted into the step-down transformer through a transmission cable, the step-down transformer adjusts the amplitude of the alternating voltage and then transmits the alternating voltage into the induction coil, the induction coil converts the alternating voltage into an alternating magnetic field, the alternating magnetic field is coupled to an external workpiece, eddy current is generated on the external workpiece, and then the external workpiece is inductively heated.
For example, in the patent application document of patent application No. 201621466465.7, an induction heating portable hand-held transformer is disclosed, including handheld shell, the transformer sets up in handheld shell, the transformer includes outer metal barrel, both ends are provided with front end cover board and rear end cover board respectively around the outer metal barrel and are used for sealing, be provided with annular magnetic core in the outer metal barrel, be provided with former limit wire on the annular magnetic core and be used for forming former limit winding, the one end of former limit wire is connected to water and electricity separation joint, still be provided with central idle rod in the outer metal barrel, central idle rod run through annular magnetic core respectively with the water piping connection on the secondary joint on the front end cover board and the rear end cover board for form the secondary loop and carry out power output.
The technical scheme who provides in this patent application document, its essence is promptly for using transformer and induction coil joint to form induction heating head structure, and when this structure was applied to induction heating equipment, possesses simple structure, but advantages such as handheld removal can realize old-fashioned water-cooled transformer's function, is the typical example that transformer and induction coil joint formed induction heating head among the prior art.
However, in the specific application process of the induction heating head provided in the above patent application document, due to the problems of too large energy density of the transformer, too large mass of the transformer, too complex parasitic elements on the transformer, too high requirement for water cooling circulation, etc., the problems of serious heat generation of the transformer, inconvenient movement of the induction heating head, poor heating effect of the whole induction heating equipment, difficult maintenance, inconvenient maintenance, etc. often occur, and it is difficult to obtain good user experience effect in a specific application scene.
In summary, how to apply the induction heating technology to a specific metal workpiece low-power heating occasion and how to set up a stable and reliable induction heating device to obtain a fast, accurate and efficient heating effect is a technical problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, an object of the present invention is to provide an induction heating head structure, which utilizes a single capacitor to form an induction heating head by engaging with an induction coil, and applies the resonance principle to obtain a high-frequency alternating current at the induction coil, and is suitable for induction heating occasions under low-power and high-frequency environments.
Another object of the present invention is to provide an induction heating head structure with simple structure, small size, good heat dissipation performance, easy assembly and disassembly, and easy maintenance.
In order to realize the above problem, the utility model provides a technical scheme as follows:
the utility model provides a miniwatt induction heating head, this induction heating head is including induction coil, electric capacity subassembly and magnetic conduction subassembly:
the induction coil comprises an induction coil body, a first joint and a second joint; the first joint and the second joint are detachably connected with two ends of the induction coil body respectively;
the capacitor assembly comprises a capacitor, a first clamping plate and a second clamping plate; the first clamping plate and the second clamping plate tightly clamp the capacitor, the first clamping plate is tightly attached to and covers one polar plate of the capacitor, and the second clamping plate is tightly attached to and covers the other polar plate of the capacitor;
the magnetic conduction component comprises a first magnetizer and a second magnetizer; the first magnetizer is arranged between the first joint and the first clamping plate and is fixedly connected with the first joint and the first clamping plate respectively; the second magnetizer is arranged between the second joint and the second clamping plate and is fixedly connected with the second joint and the second clamping plate;
the first joint, the first magnetizer and the first clamping plate are connected and conducted, and the second joint, the second magnetizer and the second clamping plate are connected and conducted, so that the induction coil body and the capacitor are connected in parallel.
After the induction coil body and the capacitor are connected in parallel, the induction coil body and the capacitor form a parallel resonance structure. The parallel structure has a natural resonant frequency f0The natural resonant frequency f0The capacitance reactance of the capacitor and the inductance reactance of the induction coil body jointly determine, two output ends of an external alternating power supply are respectively connected with the first clamping plate and the second clamping plate, then the external alternating power supply is connected with the parallel resonance structure, and when the frequency f of the external alternating power supply and the parallel structure have the inherent resonance frequency f0When equal, the parallel resonant structure reaches its resonant state.
The parallel resonance structure also comprises a quality factor Q, the quality factor is determined by the capacitance reactance of the capacitor and the inductance reactance of the induction coil, when the parallel resonance structure reaches the resonance state, alternating current which is always Q times of the source current exists in the capacitor and the induction coil body, the capacitance reactance of the capacitor and the inductance reactance of the induction coil body are reasonably adjusted, a proper Q value can be obtained, high-frequency alternating current with proper amplitude is obtained in the induction coil body, the high-frequency alternating current is converted into a corresponding high-frequency alternating magnetic field by the induction coil body, and after the magnetic field is coupled to an external metal workpiece, eddy current is generated on the external metal workpiece, so that the low-power high-frequency induction heating requirement of the metal workpiece is met.
The capacitor replaces a transformer in the prior art, and the capacitor is connected with the induction coil body to form a parallel resonance structure, so that the inherent resonance frequency f of the resonance structure can be changed0And the quality factor Q is used for obtaining proper alternating current, the volume of the induction heating head is reduced to a great extent, the mass of the induction heating head is reduced, the problems that parasitic elements on a transformer are too many, distribution parameters are difficult to measure and calculate and the like in the prior art are ingeniously avoided, and when the induction heating head is applied to a specific metal workpiece low-power heating scene, a good heating effect is obtained.
Above-mentioned electric capacity and the parallel resonance structure that this body joint of induction coil formed, in its course of the work, the induction coil body will produce high frequency alternating magnetic field in its space around, for preventing on this high frequency alternating magnetic field coupling to capacitance assembly, avoid it to be induction heating to the metal part in the capacitance assembly the utility model provides an in the technical scheme will additionally set up the magnetic conduction subassembly, the magnetic conduction subassembly sets up between induction coil and capacitance assembly, it is compared in the air, has higher magnetic conductivity, the high frequency alternating magnetic field that the induction coil body produced is blockked by the magnetic conduction subassembly, no longer to capacitance assembly coupling, has effectively avoided the induction heating of high frequency alternating magnetic field to capacitance assembly.
It should be emphasized, the utility model discloses in the magnetic conduction subassembly mentioned, its self material is prior art, and all materials that possess high conductivity and high magnetic permeability are all applicable the utility model discloses in come, the data is looked up to the technical staff accessible in the field, chooses suitable material for use as the magnetic conduction subassembly according to the concrete application scene, and magnetic conduction subassembly self material type, its concrete material model are not the utility model discloses a protection core is not the utility model discloses a within the protection range.
The induction heating head is in the course of the work, will appear in turn Q all the time in induction coil body and electric capacity and be many times source current's alternating current, consequently all will inevitably produce the heat on induction coil body and the electric capacity, for guaranteeing the long-time steady operation of induction heating head the utility model provides a technical scheme will take the water-cooling measure to induction coil and electric capacity subassembly respectively.
Specifically, the water cooling measures taken for the induction coil are: the induction coil body is in a spiral pipe shape, a water cooling channel is arranged in the induction coil body, a water inlet is formed in the first joint, a water outlet is formed in the second joint, and after the first joint and the second joint are connected with the induction coil body, the water inlet, the induction coil body and the water outlet are communicated to form a cooling water channel; the water cooling component is correspondingly provided with a water inlet pipe and a first water outlet pipe; the water inlet pipe is connected and communicated with the water inlet hole, and the first water outlet pipe is connected and communicated with the water outlet hole. External cooling water flows into the induction coil body through the inlet opening along the inlet tube, flows along the induction coil body, and flows out along the first outlet pipe through the apopore after flowing, accomplishes the cooling of external cooling water to the induction coil body from this.
The water cooling measures for the capacitor are as follows: two polar plates of the capacitor are respectively tightly attached to the first clamping plate and the second clamping plate, and heat generated in the capacitor is quickly conducted to the first clamping plate and the second clamping plate through the two polar plates; and the water-cooling component is correspondingly provided with a capacitor water-cooling branch pipe and a second water outlet pipe, the head end of the capacitor water-cooling branch pipe is connected and communicated with the water inlet pipe, the capacitor water-cooling branch pipe surrounds the capacitor and is in thermal conduction with the first clamping plate and the second clamping plate, and the tail end of the capacitor water-cooling branch pipe is connected and communicated with the second water outlet pipe. Outside cooling water flows in the back through the inlet tube, will divide and flow into electric capacity water-cooling branch pipe all the way, because electric capacity water-cooling branch pipe encircles electric capacity and arranges, consequently outside cooling water along the in-process of the flow of electric capacity water-cooling branch pipe, the heat that produces on the electric capacity will first transmit first splint and second splint to further transmit the outside cooling water of intraductal flow through electric capacity water-cooling branch pipe, heat is taken away in outside cooling water flow, keeps high-efficient heat dissipation to electric capacity.
The water cooling measures taken for the induction coil and the capacitor assembly not only can respectively and efficiently dissipate heat for the induction coil and the capacitor assembly, but also can construct a water cooling structure with one inlet and two outlets, prevent the water cooling measures for the induction coil and the capacitor assembly from interfering with each other, further reduce the whole volume of the device and simplify the structure of water cooling circulation.
To sum up, the utility model has the advantages that: compared with the prior art, the utility model provides a miniwatt induction heating head structure adopts electric capacity and this body coupling of induction coil to form parallel resonance structure, utilizes parallel resonance structure's circuit characteristic, obtains the high frequency alternating current of suitable amplitude on the induction coil body, and then realizes the miniwatt induction heating of outside metal work piece, and the device is whole small, the quality is light, it is convenient to remove, easy to maintain, has obtained good induction heating effect in metal work piece's miniwatt heating occasion.
Drawings
Figure 1 is a schematic illustration of the assembly of an induction heating head with a housing a as implemented in an embodiment.
Figure 2 is a schematic diagram of a first angled overall structure of an induction heating head implemented in an embodiment.
Figure 3 is a schematic diagram of a second angled overall structure of an induction heating head implemented in an embodiment.
Figure 4 is a schematic diagram of a partial structure of an induction heating head implemented in an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to achieve the above object, the technical solution provided by the present embodiment is as follows:
see fig. 1-3.
A low power induction heating head, comprising: induction coil 1, electric capacity subassembly 2 and magnetic conduction subassembly 3: the induction coil 1 comprises an induction coil body 11, a first joint 12 and a second joint 13; the first connector 12 and the second connector 13 are detachably connected with two ends of the induction coil body 11 respectively; furthermore, a water inlet 121 is formed in the first joint 12, a water outlet 131 is formed in the second joint 13, and after the two ends of the induction coil body 11 are connected to the first joint 12 and the second joint 13 respectively, the two ends of the induction coil body 11 are connected and communicated with the water inlet 121 and the water outlet 131 respectively.
The capacitor assembly 2 comprises a capacitor 21, a first clamping plate 22 and a second clamping plate 23; the first clamping plate 22 and the second clamping plate 23 tightly clamp the capacitor 21, the first clamping plate 22 is tightly attached to and covers one polar plate of the capacitor 21, and the second clamping plate 23 is tightly attached to and covers the other polar plate of the capacitor 21;
the magnetic conduction component 3 comprises a first magnetizer 31 and a second magnetizer 32; the first magnetizer 31 is arranged between the first joint 12 and the first clamp plate 22, and the first magnetizer 31 is fixedly connected with the first joint 12 and the first clamp plate 22 respectively; the second magnetizer 32 is disposed between the second joint 13 and the second clamp 23, and the second magnetizer 32 is fixedly connected to the second joint 13 and the second clamp 23.
In this embodiment, the induction heating head further includes a water cooling assembly 4, the water cooling assembly 4 includes a water inlet pipe 41 and a first water outlet pipe 42, the water inlet pipe 41 is connected and communicated with the water inlet hole 121, and the first water outlet pipe 42 is connected and communicated with the water outlet hole 131.
The water cooling assembly 4 further comprises a capacitance water cooling branch pipe 43 and a second water outlet pipe 44, wherein the head end of the capacitance water cooling branch pipe 43 is connected and communicated with the water inlet pipe 41, the capacitance water cooling branch pipe 43 surrounds the capacitor 21, and the tail end of the capacitance water cooling branch pipe 43 is connected and communicated with the second water outlet pipe 44.
To prevent the capacitor water-cooling branch 43 from short-circuiting the two plates of the capacitor 21, the corners of the capacitor water-cooling branch 43 are specially set to be insulating corners.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A low-power induction heating head comprises an induction coil and is characterized by further comprising a capacitor assembly, wherein the capacitor assembly comprises a capacitor; two pole plates of the capacitor are respectively fixedly connected with two ends of the induction coil and are kept electrically conducted;
and two polar plates of the capacitor are respectively electrically conducted with two output ends of an external alternating power supply.
2. The small power induction heating head as set forth in claim 1 wherein said capacitor assembly further comprises a first clamp plate and a second clamp plate; the first clamping plate and the second clamping plate are both conductors; the first clamping plate and the second clamping plate enclose to form a clamping space; the capacitor is tightly embedded in the clamping space; the first clamping plate is tightly attached to and covers one polar plate of the capacitor, and the second clamping plate is tightly attached to and covers the other clamping plate of the capacitor.
3. The small power induction heating head as set forth in claim 2, wherein said induction coil includes an induction coil body, a first terminal and a second terminal; the first joint and the second joint are detachably connected with two ends of the induction coil body respectively.
4. The small power induction heating head as set forth in claim 3, wherein said induction coil body has a spiral pipe shape having a water cooling passage therein; a water inlet hole is formed in the first joint, and a water outlet hole is formed in the second joint; when the two ends of the induction coil body are respectively connected with the first connector and the second connector, the water inlet hole, the water cooling channel and the water outlet hole are communicated in a joint mode.
5. The small power induction heating head as recited in claim 4 wherein said induction heating head further comprises a magnetically conductive assembly; the magnetic conduction assembly comprises a first magnetizer and a second magnetizer; the first magnetizer is arranged between the first joint and the first clamping plate and is fixedly connected with the first joint and the first clamping plate respectively; the second magnetizer is arranged between the second joint and the second clamping plate and is fixedly connected with the second joint and the second clamping plate respectively;
the first joint, the first magnetizer and the first clamping plate are electrically conducted;
and the second joint, the second magnetizer and the second clamping plate are electrically conducted.
6. The small power induction heating head as recited in claim 5, further comprising a water cooling module, said water cooling module comprising a water inlet pipe and a first water outlet pipe; the water inlet pipe is connected and communicated with the water inlet hole, and the first water outlet pipe is connected and communicated with the water outlet hole.
7. The small power induction heating head as recited in claim 6 wherein said water cooling assembly further comprises a capacitor water cooling manifold and a second outlet pipe; the head end of the capacitor water-cooling branch pipe is connected and communicated with the water inlet pipe, the capacitor water-cooling branch pipe surrounds the capacitor and is in heat conduction with the first clamping plate and the second clamping plate, and the tail end of the capacitor water-cooling branch pipe is connected and communicated with the second water outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022975495.3U CN213938371U (en) | 2020-12-07 | 2020-12-07 | Low-power induction heating head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022975495.3U CN213938371U (en) | 2020-12-07 | 2020-12-07 | Low-power induction heating head |
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| Publication Number | Publication Date |
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| CN213938371U true CN213938371U (en) | 2021-08-10 |
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| CN202022975495.3U Active CN213938371U (en) | 2020-12-07 | 2020-12-07 | Low-power induction heating head |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733577A (en) * | 2021-08-27 | 2021-12-03 | 广东国恒塑业发展有限公司 | Electromagnetic induction heating clamp |
| CN114433974A (en) * | 2022-02-25 | 2022-05-06 | 广东粤灿半导体设备有限公司 | Resonant type gap induction heating head |
| CN119521480A (en) * | 2025-01-23 | 2025-02-25 | 黑龙江省奥普瑞石油科技有限公司 | A dust and sand proof electromagnetic induction heater |
-
2020
- 2020-12-07 CN CN202022975495.3U patent/CN213938371U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733577A (en) * | 2021-08-27 | 2021-12-03 | 广东国恒塑业发展有限公司 | Electromagnetic induction heating clamp |
| CN114433974A (en) * | 2022-02-25 | 2022-05-06 | 广东粤灿半导体设备有限公司 | Resonant type gap induction heating head |
| CN114433974B (en) * | 2022-02-25 | 2024-11-19 | 广东粤灿半导体设备有限公司 | A resonant gap induction heating head |
| CN119521480A (en) * | 2025-01-23 | 2025-02-25 | 黑龙江省奥普瑞石油科技有限公司 | A dust and sand proof electromagnetic induction heater |
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Effective date of registration: 20211019 Address after: 523000 No. 10, Jinpeng Road, jinfenghuang Industrial Zone, Tangli village, Fenggang town, Dongguan City, Guangdong Province Patentee after: Dongguan double power supply technology Co.,Ltd. Address before: 518000 a1401, No.3 workshop, Tianan Digital Innovation Park, Longcheng Street Central City, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Shuangping Power Technology Co.,Ltd. |