Hand-held induction heating device

Abstract

The handheld induction heating equipment comprises a shell and further comprises a handheld gun structure, an induction heater is arranged on the handheld gun structure, and the induction heater enables the surface of metal or graphite in an induction coil to generate eddy current through electromagnetic induction so as to rapidly heat up; the flexible connection water-cooled cable is respectively connected with a high-frequency induction heating circuit in the shell and an induction heater in the handheld gun structure; the heat exchanger is connected with the high-frequency induction heating circuit and the flexible connection water-cooling cable, and is used for heat exchange and cooling of the high-frequency induction heating circuit, the flexible connection water-cooling cable and the induction heater, the high-frequency induction heating device is stable and convenient to use, a circulating water system arranged in the device is a stable environment, the use of the whole machine is not influenced by the interference of external factors, and the service life of the whole machine is prolonged. And a temperature alarm device is arranged in the equipment, so that the equipment can be normally used under the condition that heat is not dissipated from the outside at all. And in addition, heat dissipation is simple, the modes are diversified, heat dissipation of equipment is achieved through the heat exchanger, a water inlet and a water outlet are formed in the rear portion of the machine, and external cooling water enters the heat exchanger through the water inlet and the water outlet to take out heat of internal circulation cooling liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of heating equipment, in particular to a handheld induction heating equipment. Background Art

[0002] Handheld induction heating equipment is a device that converts electrical energy into a high-frequency magnetic field, causing eddy currents to form on the metal or graphite surface in the induction coil, resulting in rapid heating. It is widely used in brazing, heat treatment, quenching, shrink-fit and heat removal, etc. Because of its fast speed, high efficiency, safety and environmental protection, it is gradually replacing most flame heating applications. Because of its fast heating speed, which can reach over 1000°C in one second, the heat dissipation of the equipment and the heating coil is very important, but the heat dissipation of the equipment is currently a major pain point that plagues this industry.

[0003] There are currently two ways to dissipate heat and cool this type of equipment;

[0004] 1. The whole set of handheld heating equipment does not have a cooling system

[0005] When using the device, users must purchase a chiller that is several times larger than the device or buy a water pump and water tank to dissipate heat and cool the device before it can be started normally. Even if it is only used once, a cooling system must be configured. In addition, the water pressure and water quality cannot be completely unified, which affects the stability of the handheld induction heating device. Some customer factories have centralized cooling water pipelines, but the equipment cannot be used normally due to factors such as large negative pressure, unstable pressure, and water quality.

[0006] 2. Complete set of handheld heating equipment with cooling system

[0007] The chiller and heating equipment are placed in one chassis, including the compressor and cooling fan, but this equipment is bulky and weighs several hundred kilograms, making it very inconvenient to move. It is only suitable for use in fixed locations in the factory, and cannot be incorporated into factories that have centralized cooling systems. This results in unnecessary waste of energy and space.

[0008] Handheld induction heating equipment has very precise internal water channels, long soft-connected water-cooling cables, and thin internal water channels. It has very strict requirements on water pressure, flow rate, and water quality. The water outlet must be discharged naturally without negative pressure. It can only be used normally if it fully meets the standards.

[0009] The most common problems encountered in customer feedback are:

[0010] A. The customer prepared the cooling system by himself, but the water pressure, flow and water quality did not meet the standards, causing the equipment to not work properly.

[0011] B. When directly incorporated into the central cooling system of its own factory, due to the too long return water distance, too large negative pressure, and unstable water pressure, the equipment cannot work properly.

[0012] C. It is very inconvenient to use outdoors or in places that often need to be moved.

[0013] Therefore, a cooling buffer structure with a small volume and stable pressure, flow rate, and water quality is very important for induction heating equipment. Summary of the Invention

[0014] To solve the technical defects existing in the prior art, the present utility model provides a handheld induction heating device.

[0015] The technical solution adopted by the present utility model is: a handheld induction heating device, including a housing, and further including:

[0016] A hand-held gun structure, on which an induction heater is provided. The induction heater makes the surface of the metal or graphite in the induction coil generate eddy currents through electromagnetic induction and rapidly heat up;

[0017] A flexible water-cooled cable, which is respectively connected to the high-frequency induction heating circuit in the housing and the induction heater in the hand-held gun structure;

[0018] A heat exchanger, which is connected to the high-frequency induction heating circuit and the flexible water-cooled cable, and exchanges heat and cools the high-frequency induction heating circuit, the flexible water-cooled cable, and the induction heater.

[0019] It further includes a water tank and a booster pump, and the water tank is connected to the heat exchanger through the booster pump.

[0020] An external heat dissipation water path is further provided in the housing. The external heat dissipation water path includes a water inlet and a water outlet on the housing, and exchanges heat with the heat exchanger to take out the heat of the circulating coolant in the heat exchanger.

[0021] The high-frequency induction heating circuit includes an aluminum heat dissipation block, and the flexible water-cooled cable is connected to the aluminum heat dissipation block of the high-frequency induction heating circuit to dissipate heat through heat exchange for the aluminum heat dissipation block.

[0022] An over-temperature alarm device is further provided on the aluminum heat dissipation block.

[0023] The flexible water-cooled cable further includes a water outlet connected to the water tank, and the flexible water-cooled cable is respectively connected to the heat exchanger and the water tank to form an internal cooling circulation water path.

[0024] A liquid level viewing mirror is provided on the water tank to observe the liquid level in the water tank.

[0025] The beneficial effects of the present utility model are as follows: The present utility model provides a handheld induction heating device, which includes a housing and also includes a handheld gun structure. An induction heater is provided on the handheld gun structure. The induction heater makes the surface of the metal or graphite in the induction coil generate eddy currents through electromagnetic induction, thereby rapidly heating up. The flexible connection water-cooled cable is respectively connected to the high-frequency induction heating circuit in the housing and the induction heater in the handheld gun structure. The heat exchanger is connected to the high-frequency induction heating circuit and the flexible connection water-cooled cable to cool and exchange heat for the high-frequency induction heating circuit, the flexible connection water-cooled cable and the induction heater. The present utility model is equipped with a self-cooling heat exchange system. By adding a booster pump, a semi-sealed stainless steel water tank and a heat exchanger, and after reasonable layout, the volume is made small. Moreover, the present utility model is stable and convenient to use. The built-in circulating water system of the device is a stable environment and is not affected by external factors to affect the use of the entire machine. The device is equipped with a built-in temperature alarm device. When there is no external heat dissipation at all, the device can still be used normally until over-temperature alarm occurs and heating stops. And the heat dissipation is simple and there are various methods. The heat dissipation of the device is achieved through the heat exchanger. There is an inlet and an outlet at the rear of the machine. External cooling water enters through here to take out the heat of the internal circulating coolant. This external heat dissipation water path can be directly connected to a tap water pipe, or can be connected to a fish tank water pump with a water bucket, or can also be connected to the central cooling water system of the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the present utility model.

[0027] Figure 2 It is a schematic internal structural diagram of the present utility model.

[0028] Figure 3 It is a schematic internal structural diagram of the present utility model.

[0029] Wherein 1 - handheld gun structure, 2 - heat exchanger, 3 - water tank, 4 - booster pump, 5 - housing, 6 - high-frequency induction heating circuit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Handheld induction heating equipment, including a housing 5, further includes a handheld gun structure 1. An induction heater is provided on the handheld gun structure 1. The induction heater makes the surface of metal or graphite in the induction coil generate eddy current through electromagnetic induction and rapidly heat up; a flexible water-cooled cable, which is respectively connected to the high-frequency induction heating circuit 6 in the housing and the induction heater in the handheld gun structure 1; a heat exchanger 2, which is connected to the high-frequency induction heating circuit and the flexible water-cooled cable to exchange heat and cool the high-frequency induction heating circuit, the flexible water-cooled cable and the induction heater. It also includes a water tank 3 and a booster pump 4. The water tank 3 is connected to the heat exchanger 2 through the booster pump 4. Before leaving the factory, pure water and antifreeze are proportioned and injected into the water tank from the liquid injection port. A sight glass is provided on the water tank 3 to observe the liquid level in the water tank 3. The liquid level can be observed through the sight glass. Due to the special design of the water tank, when the equipment is laid down, the coolant will not overflow. After the customer gets the equipment and powers it on, it can be put into production and used. An external heat dissipation water path is also provided in the housing. The external heat dissipation water path includes an inlet and an outlet on the housing. The external heat dissipation water path exchanges heat with the heat exchanger 2 to take out the heat of the circulating coolant in the heat exchanger 2. External cooling water enters the heat exchanger through the inlet and the outlet to take out the heat of the internal circulating coolant. This external heat dissipation water path can be directly connected to a tap water pipe, or a fish tank water pump with a water bucket can be connected to the machine and then there is a water pump socket, or it can be connected to the central cooling water system of a factory, or any type of chiller and other cooling methods. There are not many requirements for water pressure, flow rate and water quality.

[0032] The high-frequency induction heating circuit includes an aluminum heat dissipation block. The flexible water-cooled cable is connected to the aluminum heat dissipation block of the high-frequency induction heating circuit to dissipate heat through heat exchange for the aluminum heat dissipation block. An over-temperature alarm device is also provided on the aluminum heat dissipation block. When there is no external heat dissipation at all, the equipment can still be used normally. It will stop heating until the over-temperature alarm. Through testing, at a room temperature of 30 degrees, without external cooling water, 50 copper pipes with a diameter of 10 mm and a thickness of 1 mm can be heated. The over-temperature alarm has been tested 1000 times during the aging test, and the equipment has no faults and can work normally after external heat dissipation.

[0033] The flexible water-cooled cable also includes an outlet connected to the water tank 3. The flexible water-cooled cable is respectively connected to the heat exchanger 2 and the water tank 3 to form an internal cooling circulation water path.

[0034] The device of the present utility model is convenient to move and light in weight. There are 4 universal wheels under the machine and a handle on the upper part. The whole machine weighs about 35 KG when filled with coolant and can be transported in the trunk of a car, greatly improving the application scenarios. In some cases of intermittent heating outdoors, it can be directly powered on and used, or connected to a tap water pipe to dissipate heat from the equipment for continuous production and use, etc.

[0035] All technical personnel should note that although the present utility model has been described according to the above specific embodiments, the inventive concept of the present utility model is not limited to this utility model only. Any modification using the inventive concept of the present utility model will be included in the scope of protection of the patent right of this patent.

[0036] The above are only the preferred embodiments of the present utility model. The scope of protection of the present utility model is not limited to the above embodiments only. All technical solutions falling within the inventive concept of the present utility model belong to the scope of protection of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the scope of protection of the present utility model.

Claims

1. A handheld induction heating device, comprising a housing (5), characterized in that: Also included are: A handheld gun structure (1), wherein the handheld gun structure (1) is provided with an induction heater, wherein the induction heater generates eddy currents on the metal or graphite surface in the induction coil through electromagnetic induction, thereby rapidly heating the surface; A flexible water-cooling cable, wherein the flexible water-cooling cable is respectively connected to a high-frequency induction heating circuit (6) in the housing and an induction heater in the handheld gun structure (1); A heat exchanger (2), wherein the heat exchanger (2) is connected to the high-frequency induction heating circuit and the soft-connected water-cooling cable, and performs heat exchange cooling for the high-frequency induction heating circuit, the soft-connected water-cooling cable and the induction heater.

2. The handheld induction heating device according to claim 1, characterized in that: It also includes a water tank (3) and a booster pump (4), wherein the water tank (3) is connected to the heat exchanger (2) via the booster pump (4).

3. The handheld induction heating device according to claim 1, characterized in that: An external heat dissipation water path is also provided in the shell, and the external heat dissipation water path comprises a water inlet and a water outlet on the shell. The external heat dissipation water path exchanges heat with the heat exchanger (2) to remove heat from the circulating coolant in the heat exchanger (2).

4. The handheld induction heating device according to claim 2, characterized in that: The high-frequency induction heating circuit comprises an aluminum heat sink, and the flexible connection water-cooling cable is connected to the aluminum heat sink of the high-frequency induction heating circuit to perform heat exchange and heat dissipation on the aluminum heat sink.

5. The handheld induction heating device according to claim 4, characterized in that: An over-temperature alarm device is also provided on the aluminum heat sink.

6. The handheld induction heating device according to claim 2, characterized in that: The flexible-connected water-cooling cable also includes a water outlet connected to the water tank (3), and the flexible-connected water-cooling cable is respectively connected to the heat exchanger (2) and the water tank (3) to form an internal cooling circulation water circuit.

7. The handheld induction heating device according to claim 2, characterized in that: The water tank (3) is provided with a liquid sight glass for observing the liquid level in the water tank (3).

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