Optimized cooling water ring for high frequency inductors

Abstract

The present application relates to the technical field of high-frequency induction heating equipment accessories, in particular to an optimized cooling water ring for high-frequency inductor, which is mainly composed of a double-hole induction ring, a mounting bracket assembly, a cooling water pipeline assembly and a sealing and insulation assembly. The outer side of the double-hole induction ring is equipped with high-strength insulation plates. The mounting bracket is composed of a long rectangular tube, a short rectangular tube and an L-shaped rectangular tube to form a hollow cooling channel in communication. The complete cooling water pipeline is formed by cooperating with a bent cooling water pipe and a water pipe joint. The pipeline connection is matched with an insulation sleeve, an insulation gasket, a copper gasket and a fastener to realize sealing and insulation protection. The cooling water flow path is optimized. The multi-channel surrounding cooling structure is adopted. The cooling water can flow synchronously from both ends of the double-hole induction ring. The cooling efficiency and cooling uniformity are greatly improved. The inductor working temperature can be effectively reduced, the thermal deformation and burning problems can be reduced, and the service life of the high-frequency inductor and the complete equipment can be prolonged. The present application can be widely applied to various high-frequency induction heating equipment.

Description

Technical Field

[0001] This invention relates to the field of high-frequency induction heating equipment accessories, and in particular to an optimized cooling water ring for high-frequency induction heaters. Background Technology

[0002] The high-frequency inductor is the core working component of high-frequency induction heating equipment. It relies on the principle of electromagnetic induction to generate eddy currents in metal workpieces and achieve heating. It is currently widely used in industrial fields such as metal heat treatment, welding, and metal smelting. The high-frequency inductor generates a large amount of heat during continuous operation at high frequencies. If cooling is not timely or effective, it can cause the insulation layer of the inductor coil to fail, thermal deformation of the metal body, and in severe cases, direct burnout of the inductor coil. This not only reduces the induction heating efficiency but also affects the operational stability of the entire equipment.

[0003] Existing traditional high-frequency sensors typically employ simple, straight-through pipe cooling structures, where cooling water flows unidirectionally only outside the inductor coil. This results in low cooling flow rate, slow water velocity, and insufficient heat exchange. Furthermore, the inadequate sealing at pipe connections makes them prone to leaks, which, combined with the high-frequency operating environment, can pose a safety hazard of electrical leakage. The single cooling path of traditional systems fails to target key heat-generating areas of the inductor coil, easily leading to localized overheating. In addition, the unreasonable layout of insulation components in existing cooling structures makes them susceptible to aging and failure under prolonged high-temperature conditions, further reducing equipment reliability. Therefore, the market urgently needs a cooling water coil structure with high cooling efficiency, good cooling uniformity, and excellent sealing and insulation performance to address the numerous shortcomings of existing technologies. Summary of the Invention

[0004] The purpose of this invention is to provide an optimized cooling water ring for high-frequency sensors, which solves the problems of low cooling efficiency, uneven cooling, poor sealing and insulation performance, and easy damage to the equipment in the prior art.

[0005] To achieve the above objectives, the present invention provides an optimized cooling water coil for a high-frequency sensor, comprising a dual-hole induction coil, a mounting bracket assembly, a cooling water piping assembly, and a sealing and insulating assembly; a high-strength insulating plate is fixedly attached to the outer wall of the dual-hole induction coil; the mounting bracket assembly includes an L-shaped square tube, a connecting long square tube, a connecting short square tube, and a connecting plate; the dual-hole induction coil is fixedly connected to the connecting long and short square tubes via the high-strength insulating plate; the connecting long and short square tubes are both fixedly connected to the L-shaped square tube; and the L-shaped square tube is connected to the connecting plate. Connection; the cooling water pipeline assembly includes a water pipe connector and a bent cooling water pipe. The water pipe connector is fixedly installed on the side wall of the L-shaped square tube and communicates with the internal cavity of the L-shaped square tube. The bent cooling water pipe is connected to the internal channels connecting the long square tube and the short square tube. The sealing and insulation assembly includes a cross-slot screw, a hexagonal copper nut, a copper washer, an insulating washer, an insulating sleeve, and a high-strength insulating tube. The insulating sleeve is fitted at the connection position between the cooling water pipeline and each installation component. The insulating washer and the copper washer are fitted together at the connection joint of the pipeline.

[0006] The diameter of the dual-hole induction coil is Φ60. Both the inner and outer walls of the dual-hole induction coil are made of copper, and the inner wall surface is smooth and burr-free.

[0007] The connecting rectangular tube, the connecting short square tube, and the L-shaped square tube are all hollow square metal tubes. Their internal channels are interconnected with the cooling cavity of the double-hole induction coil, forming a multi-channel surrounding cooling flow path.

[0008] The bending angle of the bent cooling water pipe is 53°, the wall thickness of the pipe body is 12mm, and O-rings are provided at the connection positions of the bent cooling water pipe with the connecting rectangular pipe and the connecting short rectangular pipe.

[0009] The high-strength insulation board is made of high-temperature resistant ceramic material, with a board thickness of 12mm and a temperature resistance rating of not less than 300℃; the insulating sleeve and insulating gasket are both made of polytetrafluoroethylene.

[0010] The connecting plate has an elongated mounting hole with a length of 50mm and a width of 12mm.

[0011] The inner wall of the dual-hole induction coil is provided with a spiral guide groove, and the inner wall surfaces of the connecting rectangular tube and the connecting short rectangular tube are copper plated.

[0012] The optimized cooling water ring for high-frequency sensors of the present invention achieves efficient and uniform cooling of the sensor by optimizing the cooling water flow path and combining it with a combined sealed insulation structure, thereby reducing the sensor's operating temperature, ensuring the stability of induction heating operations, and extending the overall service life of the equipment. It solves the problems of low cooling efficiency, uneven cooling, poor sealing and insulation performance, and easy damage to the equipment in the prior art. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the optimized cooling water ring for a high-frequency sensor according to the first embodiment of the present invention.

[0015] Figure 2 This is a side view of an optimized cooling water ring for a high-frequency sensor according to a first embodiment of the present invention.

[0016] In the diagram: 1-Double-hole induction coil; 2-High-strength insulating board; 3-Connecting rectangular tube; 4-Connecting short square tube; 5-L-shaped square tube; 6-Phillips head screw; 7-Hexagonal copper nut; 8-Copper washer; 9-Insulating washer; 10-Insulating sleeve; 11-High-strength insulating tube; 12-Water pipe connector; 13-Connecting plate; 14-Bent-type cooling water pipe. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0018] The first embodiment of this application is as follows:

[0019] Please see Figure 1 and Figure 2 ,in, Figure 1 This is a schematic diagram of the overall structure of the optimized cooling water ring for a high-frequency sensor according to the first embodiment of the present invention. Figure 2This is a side view of an optimized cooling water ring for a high-frequency sensor according to a first embodiment of the present invention. The present invention provides an optimized cooling water ring for a high-frequency sensor, including a double-hole induction ring 1, a high-strength insulating plate 2, a mounting bracket assembly, a cooling water pipeline assembly, and a sealing and insulating assembly. The mounting bracket assembly includes an L-shaped square tube 5, a connecting long square tube 3, a connecting short square tube 4, and a connecting plate 13. The cooling water pipeline assembly includes a water pipe connector 12 and a bent cooling water pipe 14. The sealing and insulating assembly includes a cross-slot screw 6, a hexagonal copper nut 7, a copper washer 8, an insulating gasket 9, an insulating sleeve 10, and a high-strength insulating tube 11. The aforementioned solution solves the problems of low cooling efficiency, uneven cooling, poor sealing and insulation performance, and easy damage to the equipment in the prior art of high-frequency sensors.

[0020] In this specific embodiment, the double-hole induction coil 1 is the core heat exchange and induction heating component of this device. A high-strength insulating plate 2 is fitted to the outer wall of the double-hole induction coil 1. This insulating plate isolates the double-hole induction coil 1 from the electrical connection with external mounting components and blocks direct heat transfer. The double-hole induction coil 1 is fixedly connected to the connecting rectangular tube 3 and the connecting short square tube 4 via the high-strength insulating plate 2. The bottoms of the connecting rectangular tube 3 and the connecting short square tube 4 are fixedly connected to the L-shaped square tube 5. The side of the L-shaped square tube 5 away from the connecting rectangular tube 3 is bolted to the connecting plate 13. The connecting plate 13 has a pre-installed mounting structure for fixing the entire cooling water coil to the equipment frame. The water pipe connector 12 is fixed to the side of the L-shaped square tube 5. The wall position is connected to the internal hollow cavity of the L-shaped square tube 5, serving as the inlet and outlet of cooling water; the bent cooling water pipe 14 is connected to the internal channels of the connecting long square tube 3 and the connecting short square tube 4 through the connecting pipe, and the cooling water can flow sequentially through the water pipe joint 12, the L-shaped square tube 5, and the connecting pipe before entering the connecting long square tube 3 and the connecting short square tube 4, and finally flowing into the interior of the double-hole induction coil 1, forming a surrounding cooling circuit; the insulating sleeve 10 is fitted on the connection between the cooling water pipe and each metal mounting component, isolating the cooling water from direct contact with the metal components; the insulating gasket 9 and the copper gasket 8 are stacked and assembled at the pipe connection, and then tightened and fixed by the cross-slot screw 6 and the hexagonal copper nut 7, simultaneously achieving dual protection of pipe sealing and electrical insulation.

[0021] The inner and outer walls of the double-hole induction coil 1 are made of copper. The inner wall is polished smooth without burrs, which increases the contact area of ​​cooling water and improves heat exchange efficiency. The hole diameter of the double-hole induction coil 1 is set to Φ60, which can be adapted to the use requirements of conventional high-frequency heating workpieces on the market.

[0022] Among them, the connecting rectangular tube 3, the connecting short square tube 4, and the L-shaped square tube 5 are all hollow square metal tubes, and their internal channels are completely connected to the cooling cavity of the double-hole induction coil 1, forming a multi-channel surrounding cooling path. Cooling water enters from both ends of the double-hole induction coil 1 at the same time, evenly covering the entire circumferential surface of the induction coil, and achieving all-round cooling.

[0023] The bent cooling water pipe 14 has a bending angle of 53° and a pipe thickness of 12mm, which can not only adapt to the narrow installation space inside the equipment, but also ensure the flow rate of cooling water. The connection end face of the bent cooling water pipe 14 with the connecting rectangular pipe 3 and the connecting short rectangular pipe 4 is provided with a sealing groove, and an O-ring is installed in the sealing groove to further enhance the sealing effect of the pipeline.

[0024] The high-strength insulating board 2 is made of high-temperature resistant ceramic material with a thickness of 12mm and a temperature resistance rating of ≥300℃. It can effectively block heat transfer and prevent the mounting bracket components from deforming due to heat. The insulating sleeve 10 and the insulating gasket 9 are both made of polytetrafluoroethylene, which has the characteristics of high temperature resistance and high insulation, and is suitable for the long-term high-temperature working environment of high-frequency sensors.

[0025] Secondly, the connecting plate 13 has an elongated mounting hole with a length of 50mm and a width of 12mm, which allows for flexible adjustment of the installation position of the cooling water ring according to the equipment specifications, thereby improving the equipment's compatibility.

[0026] Furthermore, a spiral guide groove can be added to the inner wall of the double-hole induction coil 1 to guide the cooling water to form a spiral turbulent flow, thereby enhancing the heat exchange effect; the inner walls of the connecting rectangular tube 3 and the connecting short square tube 4 are copper-plated to improve the thermal conductivity of the tube wall and accelerate heat transfer.

[0027] When in use, the external water chiller pressurizes the cooling water. The cooling water first enters the hollow channel of the L-shaped square tube 5 through the water pipe joint 12. Then the water flow is split and flows into the internal channels of the connecting long square tube 3 and the connecting short square tube 4 respectively. Then it enters the cooling chamber of the double-hole induction coil 1 through the connecting pipe.

[0028] Cooling water flows around the circumferential surface of the dual-hole induction coil 1, fully absorbing the heat generated during sensor operation. After completing the heat exchange, the heat is carried away, achieving continuous cooling. This device adopts a multi-channel structure with simultaneous water inlet at both ends, ensuring that the cooling water can evenly cover the inner and outer walls of the dual-hole induction coil 1, completely avoiding localized heat accumulation and overheating problems.

[0029] The insulating sleeve 10 and the insulating gasket 9 at the pipeline connection point, together with the high-strength insulating plate 2 on the outside, form a multi-layer insulation protection system, which effectively prevents leakage problems under high-frequency operating conditions and blocks heat transfer to the mounting bracket; the cross-slot screw 6 and the hexagonal copper nut 7, together with the copper gasket 8 and the O-ring seal, form a multi-seal structure, which completely eliminates water leakage at the pipeline connection.

[0030] During on-site use, staff can adjust the external water chiller to change the flow rate and pressure of the cooling water, and can also replace insulation parts with different thermal conductivity according to the actual working temperature of the sensor, so as to adapt to the usage requirements of high-frequency equipment with different heating power.

[0031] Compared with existing traditional cooling structures, the present invention has the following advantages:

[0032] Significantly improved cooling efficiency: The multi-channel surround cooling path is adopted, and the cooling water flows in synchronously from both ends of the double-hole induction coil 1, which increases the heat exchange area and water flow rate. Compared with the traditional unidirectional cooling structure, the cooling efficiency is improved by more than 40%, which can significantly reduce the operating temperature of the sensor.

[0033] Excellent cooling uniformity: The multi-channel diversion design allows cooling water to evenly cover the entire surface of the induction coil, and the overall temperature difference of the inductor can be controlled within ±5℃, effectively avoiding local overheating problems, ensuring the uniformity of induction heating, and improving the heating quality of the workpiece.

[0034] Reliable sealing and insulation performance: High-temperature insulation is achieved by combining ceramic insulation board and polytetrafluoroethylene insulation components. Combined with the copper gasket 8 and O-ring seal, a double sealing structure is formed, which completely eliminates the safety hazards of water leakage and electric leakage, and is suitable for high-frequency, high-temperature and harsh working environments.

[0035] Compact structure and strong installation adaptability: The whole adopts a modular design, with compact component layout and simplified quantity, making assembly and maintenance convenient; the connecting plate 13 is provided with a long strip adjustable mounting hole, which can be adapted to high-frequency induction heating equipment of different models and specifications.

[0036] Long service life and low maintenance cost: Effectively controls the operating temperature of the sensor, significantly reduces the probability of thermal deformation and burn-out of the induction coil, and slows down the high-temperature aging of the insulating components, extending the service life of the sensor and the entire equipment, and reducing the frequency and cost of subsequent equipment maintenance.

[0037] The optimized cooling water ring for high-frequency sensors in this embodiment achieves efficient and uniform cooling of the sensor by optimizing the cooling water flow path and combining it with a combined sealing and insulation structure. This reduces the sensor's operating temperature, ensures the stability of induction heating operations, and extends the overall service life of the equipment. It solves the problems of low cooling efficiency, uneven cooling, poor sealing and insulation performance, and easy damage to the equipment in the prior art.

[0038] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An optimized cooling water coil for a high-frequency sensor, characterized in that, Includes a dual-hole induction coil, mounting bracket assembly, cooling water piping assembly, and sealing and insulation assembly; The outer wall of the dual-hole induction coil is fixedly fitted with a high-strength insulating plate; the mounting bracket assembly includes an L-shaped square tube, a connecting long square tube, a connecting short square tube, and a connecting plate. The dual-hole induction coil is fixedly connected to the connecting long and short square tubes via the high-strength insulating plate. The connecting long and short square tubes are both fixedly connected to the L-shaped square tube, and the L-shaped square tube is connected to the connecting plate; the cooling water pipeline assembly includes a water pipe connector and a bent cooling water pipe. The water pipe connector is fixedly installed on the side wall of the L-shaped square tube and communicates with the internal cavity of the L-shaped square tube. The bent cooling water pipe communicates with the internal channels of the connecting long and short square tubes; the sealing and insulating assembly includes a cross-slot screw, a hexagonal copper nut, a copper washer, an insulating gasket, an insulating sleeve, and a high-strength insulating tube. The insulating sleeve is fitted at the connection position between the cooling water pipeline and each mounting component, and the insulating gasket is fitted with the copper gasket at the connection joint of the pipeline.

2. The optimized cooling water coil for high-frequency sensors as described in claim 1, characterized in that, The diameter of the double-hole induction coil is Φ60. Both the inner and outer walls of the double-hole induction coil are made of copper, and the inner wall surface is smooth and burr-free.

3. The optimized cooling water coil for high-frequency sensors as described in claim 2, characterized in that, The connecting rectangular tube, the connecting short square tube, and the L-shaped square tube are all hollow square metal tubes. The internal channels of the three are interconnected with the cooling cavity of the double-hole induction coil, forming a multi-channel surrounding cooling flow path.

4. The optimized cooling water coil for high-frequency sensors as described in claim 3, characterized in that, The bending angle of the bent cooling water pipe is 53°, the wall thickness of the pipe body is 12mm, and O-rings are provided at the connection positions of the bent cooling water pipe with the connecting rectangular pipe and the connecting short rectangular pipe.

5. The optimized cooling water coil for high-frequency sensors as described in claim 4, characterized in that, The high-strength insulation board is made of high-temperature resistant ceramic material, with a board thickness of 12mm and a temperature resistance rating of not less than 300℃; the insulating sleeve and insulating gasket are both made of polytetrafluoroethylene.

6. The optimized cooling water coil for high-frequency sensors as described in claim 5, characterized in that, The connecting plate has an elongated mounting hole with a length of 50mm and a width of 12mm.

7. The optimized cooling water coil for high-frequency sensors as described in claim 6, characterized in that, The inner wall of the dual-hole induction coil is provided with a spiral guide groove, and the inner wall surfaces of the connecting rectangular tube and the connecting short rectangular tube are copper plated.

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