Induction heating equipment with temperature homogenization adjusting function

Abstract

The utility model discloses induction heating equipment with a temperature uniformization adjusting function, which relates to the field of induction heating equipment and comprises an insulation and heat insulation protective cover arranged on the induction heating equipment, a heating cavity is formed in the insulation and heat insulation protective cover and is divided into a plurality of heating sections, and the heating sections are arranged in the insulation and heat insulation protective cover. An inductance coil is arranged on the inner side of each heating section, and each inductance coil is connected with a frequency converter; each heating section is correspondingly provided with a thermocouple temperature sensor, each thermocouple temperature sensor is connected with a PID temperature controller, and the linear current / voltage output end of the PID temperature controller is electrically connected with the frequency converter corresponding to the heating section. According to the utility model, the problem that the existing induction heating equipment can not carry out uniform induction heating on a workpiece needing to be heated is solved, so that the purpose of uniformly adjusting the heating temperature is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to induction heating equipment field, concretely is a kind of induction heating equipment with temperature homogenization regulation function. BACKGROUND

[0002] Induction heating equipment is a kind of industrial equipment using electromagnetic induction principle to carry out non-contact heating to conductive material, with the remarkable advantages of high efficiency, precision, energy saving, environmental protection etc.

[0003] The existing induction heating equipment is usually integrated, in induction heating equipment, usually only one induction coil, under the influence of use environment, the heating temperature of each part of this induction coil is different, cannot carry out uniform induction heating to the workpiece required to be heated, cannot make heating temperature uniform regulation.

[0004] Therefore, a new type of induction heating equipment with temperature homogenization regulation function needs to be designed to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of induction heating equipment with temperature homogenization regulation function to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of induction heating equipment with temperature homogenization regulation function, including the insulating heat shield of installation on inductive heating equipment, the inside of the insulating heat shield forms heating cavity, the heating cavity is divided into multiple heating sections, each heating section inside is respectively equipped with inductor coil, each inductor coil is respectively connected with a frequency converter;

[0007] Each heating section is correspondingly provided with a thermocouple temperature sensor, each thermocouple temperature sensor is respectively connected with PID temperature controller and the linear current / voltage output end of this PID temperature controller is electrically connected with the frequency converter of this heating section, and the frequency and current of inductive heating coil are adjusted according to the control signal of the PID temperature controller, so as to change the heating power of the region.

[0008] Preferably, the inside of the heating cavity is provided with a support, and the inductor coil corresponds to the heating section one by one.

[0009] Preferably, the support includes a plurality of ceramic support rods, and the thermocouple temperature sensor is mounted on the ceramic support rod.

[0010] Preferably, each of the ceramic support rods is arranged in the inside of the insulating heat shield in a circumferential direction, and the inductor coil corresponding to each heating section is wound on each of the ceramic support rods.

[0011] Preferably, the control port of each PID temperature controller is connected with a relay, and the relay is connected with an alarm, which can be an audible and light alarm.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] Through the setting of multiple inductance coils, the multiple inductance coils are arranged at equal intervals on the multiple ceramic support rods, the inductance coils can realize the conversion from electric energy to heat energy according to electromagnetic induction and eddy current effect after being electrified, the inside of the inductance coils can be heated, since the inductance coils are multiple, multiple heating sections are formed in the inside of the insulation heat protection cover, the heating power of each heating section can be controlled individually, the temperature of the inside of the insulation heat protection cover can be uniform, and the purpose of uniform heating is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is a control principle architecture block diagram of the utility model;

[0016] In the drawing:

[0017] 1, insulation heat protection cover; 2, inductance coil; 3, thermocouple temperature sensor; 4, ceramic support rod. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, apparently, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model. All electronic components in the application are controlled by an external controller.

[0019] Embodiment one

[0020] Please refer to Figures 1-2 The utility model provides an inductive heating equipment with temperature uniformization regulation function, including the insulation heat protection cover 1 of installation on inductive heating equipment, the inside of the insulation heat protection cover 1 forms heating cavity, the heating cavity is divided into multiple heating sections, each heating section inside is equipped with inductance coil 2, each inductance coil 2 is connected with a frequency converter respectively, and the frequency converter adjusts the frequency and current of inductance coil 2 according to the signal, so as to change the heating power, and then realize the temperature uniformization regulation of each heating section.

[0021] Each heating section is provided with a thermocouple temperature sensor 3. Since the heating temperature range of the induction heating device is generally around 1000°C, for example, the heating temperature of the intermediate frequency induction heating device is generally not more than 1250 degrees, therefore, in this embodiment, the thermocouple temperature sensor 3 can meet the temperature environment in this scenario.

[0022] Each of the thermocouple temperature sensors 3 is connected with a PID temperature controller, and the linear current / voltage output end of the PID temperature controller is electrically connected with the corresponding frequency converter of the heating section. The PID controller transmits the calculated output signal to the frequency converter, and the frequency converter adjusts the frequency and current of the inductor coil 2 in the heating section according to the signal, so as to change the heating power. In actual application, the PID temperature controller adopts a Yudian temperature controller digital display intelligent full-automatic PID temperature controller.

[0023] The insulating and heat-insulating protective cover 1 is installed on the inductive heating device, which can be a commonly used intermediate frequency induction heating device on the market (which is prior art, so it will not be described in detail hereafter). The insulating and heat-insulating protective cover 1 is made of insulating and heat-insulating material, which can reduce heat loss.

[0024] Specifically, the inside of the heating cavity is provided with a support, the inductor coil 2 corresponds to each heating section, the support includes a plurality of ceramic support rods 4, the thermocouple temperature sensor 3 is installed on the ceramic support rod 4, each of the ceramic support rods 4 is arranged in the inside of the insulating and heat-insulating protective cover 1 in a circumferential direction, and each of the inductor coils 2 corresponding to each of the heating sections is wound on each of the ceramic support rods 4. The support can support the inductor coil 2. The support is composed of a plurality of ceramic support rods 4. The plurality of ceramic support rods 4 are clamped to the inside of the insulating and heat-insulating protective cover 1. The thermocouple temperature sensor 3 is fixedly installed on the ceramic support rod 4. Each of the inductor coils 2 is wound on the circumferential surface of the circle surrounded by the plurality of ceramic support rods 4, so as to avoid loosening of the inductor coil 2 during use.

[0025] Embodiment 2

[0026] As shown in Figure 2 Each of the corresponding PID temperature controllers in each heating section is also connected with a relay. Specifically, the relay control port of the PID temperature controller is connected with the relay, and the relay is connected with an alarm. When the thermocouple temperature sensor 3 senses that the temperature of the corresponding heating area is not within the preset threshold, the temperature signal of the thermocouple temperature sensor 3 is fed back to the PID temperature controller. The PID temperature controller outputs a control signal to the relay to turn on the circuit where the relay is located. The alarm is powered on to start alarming. The staff can troubleshoot the heating area according to the prompt of the alarm.

[0027] Those not described in detail in the specification belong to the prior art known to those skilled in the art.

[0028] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An induction heating device with temperature uniformity adjustment function, characterized in that, The application relates to an insulating and heat-insulating protective cover (1) installed on an inductive heating device, wherein the inside of the insulating and heat-insulating protective cover (1) forms a heating cavity which is divided into multiple heating sections, each of the heating sections is internally provided with an inductive coil (2), each of the inductive coils (2) is connected with a frequency converter; Each of the heating sections is correspondingly provided with a thermocouple temperature sensor (3), each of the thermocouple temperature sensors (3) is connected with a PID temperature controller, and the linear current / voltage output end of the PID temperature controller is electrically connected with the frequency converter corresponding to the heating section.

2. The inductive heating apparatus having a temperature uniformization adjustment function according to claim 1, characterized by: The inside of the heating cavity is provided with a support, and the inductive coil (2) corresponds to the heating section one by one.

3. The inductive heating apparatus having a temperature uniformization adjustment function according to claim 2, characterized by: The support comprises multiple ceramic support rods (4), and the thermocouple temperature sensor (3) is installed on the ceramic support rod (4).

4. The inductive heating apparatus having a temperature uniformization adjustment function according to claim 3, characterized by: Each of the ceramic support rods (4) is circumferentially arranged in the inside of the insulating and heat-insulating protective cover (1), and the inductive coil (2) corresponding to each of the heating sections is wound on each of the ceramic support rods (4).

5. The inductive heating apparatus having a temperature uniformization adjustment function according to claim 3, characterized by: The control port of each of the PID temperature controllers is connected with a relay, and the relay is connected with an alarm in series.

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