Flat plate type electromagnetic heating module laminating machine

Abstract

The utility model provides a flat plate type electromagnetic heating module laminating machine, which aims to overcome the defect of non-uniform heating of a heating plate when a battery assembly is heated by adopting an electromagnetic heating mode in the prior art, and comprises a magnetic conductive heating plate used for supporting and heating a laminating assembly, the electromagnetic heating module comprises a non-magnetic electromagnetic coil mounting plate and at least two groups of electromagnetic coils, and each group of electromagnetic coils is arranged in a mounting groove formed in the electromagnetic coil mounting plate in a planar spiral surrounding manner. The temperature of different areas of the heating plate can be adjusted according to the temperature condition detected by the temperature detection device, multi-section temperature setting and multi-point temperature control can be achieved through software setting, the temperature of the heating plate can be adjusted according to needs, and a mechanical basis is provided for even heating of the heating plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum liquid transfer, and particularly relates to a flat-plate electromagnetic heating module laminating machine. Background Art

[0002] Traditional laminators use thermal oil heating, which has high energy consumption and the replacement of thermal oil pollutes the environment. At present, the industry is developing towards a more energy-saving electromagnetic heating method. At present, there are about two structures of the heating device of the electromagnetic heating laminator. One is that the coil is wound on the heating column. The heating column generates heat by induction and transfers the heat to the heating plate. However, when the structure of the electromagnetic coil heating the heating column is used, the heating column and the heating plate are in point contact, which can easily cause uneven heating of the heating plate. The other is to set an electromagnetic heating module structure under the heating plate to heat the heating plate. With this structure, the electromagnetic coil is set on a non-magnetic electromagnetic coil mounting plate. The electromagnetic coil is wound in a ring-shaped circle. With this structure, the heat of the coil located in the inner circle is slowly dissipated, and the heat of the coil located in the outer circle is quickly dissipated, so that the temperature of the center of the heating plate itself is significantly higher than the temperature of the edge of the heating plate, resulting in uneven heating. Utility Model Content

[0003] The utility model aims to provide a flat-plate electromagnetic heating module laminator to solve the problem that the heating plate is heated unevenly when the battery assembly is heated by electromagnetic heating in the prior art.

[0004] The technical solution of the utility model to solve the technical problem is as follows:

[0005] A flat-plate electromagnetic heating module laminating machine, comprising a magnetic heating plate, the heating plate is used to support and heat a laminating component, the electromagnetic heating module comprises a non-magnetic electromagnetic coil mounting plate and an electromagnetic coil, the electromagnetic coil comprises at least two groups, each group of electromagnetic coils is arranged in a plane spiral shape in a mounting groove arranged on the electromagnetic coil mounting plate, each group of coils is arranged in sequence from the center to the outside, each coil is electrically connected to an electromagnetic heating controller, each electromagnetic heating controller is electrically connected to the controller, each group of coils is correspondingly provided with at least one temperature detection device, each temperature detection device detects the temperature of the heating plate, and is electrically connected to the input end of the controller, the controller controls the electromagnetic heating controller according to the temperature of the heating plate detected by the temperature detection device, and the electromagnetic heating controller controls the corresponding electromagnetic coil to heat so that the temperature of the heating plate is consistent;

[0006] The temperature detection devices corresponding to the different electromagnetic coils are distributed along the extension direction of the diagonal line;

[0007] There is a distance between the heating plate and the electromagnetic coil mounting plate, and a non-magnetic heat insulation block is arranged between the two. The bolt rod used to connect the heating plate and the electromagnetic coil mounting plate passes through the heat insulation block, and the heat insulation block protects the bolt from being heated by the heating plate;

[0008] A heat insulation block is arranged below the heating plate and around the periphery of the heating plate, and the heat insulation block seals the heating plate and the electromagnetic coil mounting plate;

[0009] A heat-conducting plate made of non-magnetic conductive material is arranged below the heating plate, and the heat-conducting plate is in direct contact with the heating plate;

[0010] A non-magnetic electric heating sheet is also provided in the low temperature area of ​​the heating plate, and the electric heating sheet is located below the heating plate and is in direct contact and fixed connection with the heating plate;

[0011] A heat-conducting plate made of non-magnetic conductive material is arranged below the heating plate, and the electric heating plate is located between the heating plate and the heat-conducting plate;

[0012] The controller is a PID controller;

[0013] Each set of electromagnetic coils is equipped with at least one set of spare electromagnetic coils, and an electromagnetic coil on-off controller is provided to control the on-off switching of the electromagnetic coils in use and the spare electromagnetic coils. When no current flows through the electromagnetic coils in use, the electromagnetic coil on-off controller controls the spare electromagnetic coils to be turned on by the power supply. The spare electromagnetic coils and the electromagnetic coils in use are arranged in parallel on the electromagnetic coil mounting plate, and the spare electromagnetic coils and the electromagnetic coils in use are located in the same plane or are arranged in an up-and-down stack.

[0014] The electromagnetic coil on-off controller includes a contactor and an intermediate relay. The contactor is used to switch the normal electromagnetic coil and the electromagnetic coil in use and the power supply. One end of the contactor is connected to the power supply. The normally closed contact of the contactor is connected to the normal electromagnetic coil, and the normally open contact of the contactor is connected to the spare electromagnetic coil. The intermediate relay controls the opening or closing of the normally open contact and the normally closed contact of the contactor. A current detector is set to detect the current of the electromagnetic coil in use. The current detector is connected to the input end of the controller for electrical signals. When the current detector detects that there is no current in the heating circuit of the electromagnetic coil in use, it feeds back to the controller. The controller controls the normally open contact of the contactor to close and switches the heating circuit to the spare electromagnetic coil. When the fault of the original electromagnetic coil is eliminated, the controller controls the normally open contact to open and the normally closed contact to close. The controller is a PLC controller.

[0015] The advantages and beneficial effects of the utility model are:

[0016] The flat-plate electromagnetic heating module laminating machine adopting the structure of the utility model is provided with a plurality of sets of electromagnetic coils arranged in sets, each set of electromagnetic coils is respectively provided with an electromagnetic heating controller, each electromagnetic heating controller is electrically connected to the controller, and a temperature detection device is provided at the corresponding position of each electromagnetic coil, and the temperature detection device is electrically connected to the controller. Therefore, the temperature of the position of the heating plate corresponding to each electromagnetic coil is detected by the temperature detection device and is individually controlled and heated by the corresponding electromagnetic heating controller. Therefore, the temperature of different areas of the heating plate can be adjusted according to the temperature detected by the temperature detection device, and multi-stage temperature setting and multi-point temperature control can be achieved through software settings, so that the temperature of the heating plate can be adjusted as needed, providing a mechanical basis for uniform heating of the heating plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a flat-plate electromagnetic heating module laminating machine of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of an embodiment of the electromagnetic heating coil winding structure of a flat-plate electromagnetic heating module laminating machine of the utility model;

[0019] Figure 3 It is a cross-sectional structural diagram of an embodiment of the electromagnetic heating coil winding structure of the flat-plate electromagnetic heating module laminating machine of the utility model;

[0020] Figure 4 It is a cross-sectional structural diagram of an embodiment of the electromagnetic heating coil arrangement structure of a flat-plate electromagnetic heating module laminating machine of the utility model;

[0021] Figure 5 This is the schematic diagram of the electromagnetic coil heating control principle of the flat-plate electromagnetic heating module laminating machine of the utility model.

[0022] Description of Reference Numerals

[0023] 1-upper box assembly; 1.2 -upper box; 1.3-silica gel plate;

[0024] 2-heating plate assembly; 2.1-heating plate; 2.3-heat conducting plate; 2.4-insulating plate; 2.5-temperature detection device;

[0025] 3-Electromagnetic heating module; 3.1-Insulation block; 3.2-Electromagnetic coil mounting plate; 3.3-Electromagnetic coil

[0026] 3.3.1 Electromagnetic coil 1; 3.3.2 Electromagnetic coil 2; 3.4-Mounting hole; 3.5-Heating module mounting hole; 4-Laminated assembly; DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below through specific embodiments. The following embodiments are merely descriptive and not restrictive, and the protection scope of the present invention cannot be limited by them.

[0028] like Figure 1-Figure 3 As shown, the flat-plate electromagnetic heating module laminating machine of the utility model structure is composed of an upper box assembly 1, a heating plate assembly 2, an electromagnetic heating module 3 and a controller. The heating plate assembly includes a heating plate 2.1 and a temperature detection device 2.5; the heating plate 2.1 is used to support and heat the laminating assembly 4, and the temperature detection device detects the temperature of the heating plate. The electromagnetic heating module 3 includes: an electromagnetic coil 3.3 and an electromagnetic coil mounting plate 3.2, and the electromagnetic coil is arranged on the electromagnetic coil mounting plate. The upper box assembly 1 is used to form a vacuum chamber with the heating plate and laminate the laminating assembly. The temperature detection device is electrically connected to the input signal of the controller, the electromagnetic coil 3.3 is electrically connected to the electromagnetic heating controller, and the electromagnetic heating controller controls the heating of the electromagnetic coil.

[0029] In the utility model, the electromagnetic coil mounting plate of the electromagnetic heating module is a non-magnetic and high temperature resistant electromagnetic coil mounting plate, so as to avoid electromagnetic induction between the electromagnetic coil mounting plate and the electromagnetic coil to generate heat and damage the electromagnetic coil, and at the same time protect the maintenance personnel to prevent the risk of burns or electric shock. Of course, the electromagnetic coil mounting plate can be made of a single non-magnetic material, or it can be composed of a combination of non-magnetic material and magnetic material, and the non-magnetic electromagnetic coil mounting plate is composed of non-magnetic material isolating the magnetic material. In the utility model, a planar spiral groove is provided on the electromagnetic coil mounting plate, and the electromagnetic coil is provided in the planar spiral groove, and the routing direction of the coil of the electromagnetic coil is surrounded in a planar spiral shape. It can be a circular surround, a rectangular surround, or a planar spiral surrounded by a rhombus, an ellipse, or other geometric shapes. In the utility model, at least two groups of coils of similar shapes are arranged on the electromagnetic coil mounting plate, each coil is concentrically arranged, and is arranged in sequence from the inner circle to the outer circle to form inner and outer layers of electromagnetic coils. The electromagnetic coils of different layers are respectively connected to their own electromagnetic heating controllers, and the electromagnetic heating controller of each group of electromagnetic coils is electrically connected to the output end of the controller. At least one temperature detection device 2.5 is arranged on the heating plate at a position corresponding to the electromagnetic coil of each layer to detect the temperature of the heating plate at the corresponding electromagnetic coil. Each temperature detection device is respectively connected to the input end of the controller by an electrical signal, and the controller controls the heating of the electromagnetic coil according to the detected temperature. For example, Figure 2 As shown, the electromagnetic coil is divided into two layers, the inner coil is the electromagnetic coil 1 3.3.1, located at the center, and the outer coil is the electromagnetic coil 2 3.3.2, which is sleeved outside the electromagnetic coil 1 3.3.1, or divided into three layers, three groups of coils are set, the first layer coil is located in the center, and the second layer coil is located between the third layer and the first layer coil. More layers of electromagnetic coils can be set according to different needs.

[0030] The electromagnetic heating module is divided into at least two groups of coils, inner and outer, and the heating plate is divided into at least two heating areas, inner and outer. Each group of coils is connected to the output electrical signal of the controller respectively, and the temperature average value of each point of each layer of coils or the temperature of each detection point can be obtained as needed. According to the temperature of the heating plate corresponding to each layer of coils, the power supply current and / or heating time of the corresponding coils are accurately adjusted to make the temperature of the heating plate area corresponding to each layer of coils tend to be consistent. The realization of multi-point temperature control is more conducive to improving the uniformity of the temperature at various places of the heating plate. In the utility model, it is best that the mounting holes 3.4 of the temperature detection device are distributed along the extension direction of the diagonal line, and at least one temperature detection device is set at each layer of electromagnetic coil. In this way, the temperature of the four points of the coil can be understood through one temperature detection device, and the four points are symmetrical with the longitudinal center X line O1-O1 and the transverse center line O2-O2 of the electromagnetic coil as the symmetry axis. In this way, the number of temperature detection devices can be saved.

[0031] Preferably, a certain distance is set between the upper surface of the electromagnetic coil mounting plate and the lower surface of the heating plate, so that the heating plate and the electromagnetic coil are not in contact and there is a distance between the two, to prevent the heat of the heating plate from being absorbed by the electromagnetic coil and causing the electromagnetic coil to be burned. In a specific structure, a heat insulation block 3.1 is set between the heating plate and the electromagnetic coil mounting plate, and the insulation block is used for isolation. The heating plate and the electromagnetic coil mounting plate are fixedly connected by bolts. The heat insulation block is preferably set outside the bolts, that is, the bolts pass through the heat insulation block, and the heating plate and the electromagnetic coil clamp the heat insulation block between the two and are fixed with bolts. The heat insulation block is made of non-magnetic and high-temperature resistant material, and its functions are: 1. It can ensure a stable working distance between the electromagnetic coil and the heating plate; 2. It prevents the electromagnetic coil from heating the bolts during power-on, causing the electromagnetic coil to be heated by the bolts and damaged.

[0032] It is best to set a heat conduction plate under the heating plate. The heat conduction plate is in direct and close contact with the heating plate. The heat conduction plate is made of materials with good thermal conductivity, such as graphene. By utilizing its fast thermal conductivity, the heat from the high-temperature area where the heat is concentrated on the heating plate is transferred to the low-temperature area, thereby improving the uniformity of each point in the entire working area of ​​the heating plate. It is best to set a heat preservation plate under the heat conduction plate. The heat preservation plate is made of aluminum silicate heat preservation cotton, which has the characteristics of high temperature resistance and heat preservation. It can not only ensure the temperature of the heating plate and reduce temperature loss, but also block the heat conduction between the heat conduction plate and the electromagnetic coil, further preventing the temperature of the electromagnetic coil from rising, and protecting the electromagnetic coil. The temperature detection device is set under the heating plate. In order to prevent the heat of the heating plate from affecting the accuracy of the detection result of the temperature detection device, the mounting part of the temperature detection device is made of non-magnetic material to prevent the mounting part from being heated by the heating plate and making the temperature detection device unable to detect the true temperature of the heating plate.

[0033] In order to prevent the electromagnetic coil from being unable to reach some positions, so that the temperature of the local position of the heating plate is too low to be corrected, or the electromagnetic coil is set, but the temperature in this area is too low, a structure combining the electromagnetic coil and the resistance wire heating can be used, and an electric heating plate is set below the heating plate and corresponding to the low temperature zone of the heating plate. The electric heating plate is directly connected to the heating plate. The electric heating plate is made of non-magnetic material. Since the electric heating plate itself is relatively thin and is a non-magnetic material with good thermal conductivity, the electric heating plate can also be used to replace the thermal conductive plate. When the electric heating plate and the thermal conductive plate are set at the same time, the electric heating plate is located between the thermal conductive plate and the heating plate. When the electric heating plate and / or the thermal conductive plate are set, the electric heating plate and / or the thermal conductive plate are provided with a heating module mounting hole 3.5 for the bolts to pass through.

[0034] A solenoid coil mounting plate can be arranged below a heating plate, or multiple solenoid coil mounting plates with solenoid coils can be arranged. When there are multiple solenoid coil mounting plates, each solenoid coil mounting plate is arranged below the heating plate, and a heat insulation block is arranged around the heating plate and the solenoid coil mounting plate to close the surrounding space between the two, and at the same time prevent heat loss. The controller is a PLC, preferably a PID controller.

[0035] In the present invention, in order to prevent the electromagnetic coil from being damaged and causing shutdown, a spare electromagnetic coil is provided on the basis of the electromagnetic coil in use. Each set of electromagnetic coils in use is equipped with at least one set of spare electromagnetic coils, and the position of the spare electromagnetic coils can be arranged in parallel with the corresponding electromagnetic coils in use, that is, the spare electromagnetic coils and the electromagnetic coils in use are located in parallel in the same plane, or the spare electromagnetic coils and the electromagnetic coils in use are stacked one above the other, and the spare electromagnetic coils and the electromagnetic coils in use are respectively equipped with their own electromagnetic heating controllers, which are electrically connected to the controller by the electromagnetic heating controller, and when the electromagnetic coils in use are damaged, the spare electromagnetic coils work.

[0036] The on and off of the standby electromagnetic coil is controlled by the electromagnetic coil on and off controller, which includes a contactor and an intermediate relay. The contactor is used to switch the connection between the normal electromagnetic coil and the electromagnetic coil in use and the power supply. The upper end of the contactor is connected to the control cable, and the normally closed contact at the lower end of the contactor is wired to the normal electromagnetic coil. The normally open contact of the contactor is wired to the standby electromagnetic coil. The intermediate relay controls the opening or closing of the normally open contact and the normally closed contact of the contactor. A current detector is set in the heating circuit of the electromagnetic coil in use. The current detector is connected to the input end of the controller for electrical signals. When the current detection device detects that there is no current in the heating circuit of the electromagnetic coil in use, it will feedback to the controller. The controller controls the normally open contact of the contactor to close and switch the heating circuit to the standby electromagnetic coil. When the fault of the original electromagnetic coil is eliminated, the controller controls the normally open contact to open and the normally closed contact to close.

Claims

1. A flat-plate electromagnetic heating module laminator, comprising a magnetically conductive heating plate, the heating plate being used to support and heat a laminating assembly, characterized in that: The electromagnetic heating module includes a non-magnetic electromagnetic coil mounting plate and an electromagnetic coil, the electromagnetic coil includes at least two groups, each group of electromagnetic coils is arranged in a plane spiral shape in a mounting groove arranged on the electromagnetic coil mounting plate, and each group of coils is arranged in sequence from the center to the outside, each coil is electrically connected to an electromagnetic heating controller, each electromagnetic heating controller is electrically connected to the controller, and each group of coils is correspondingly provided with at least one temperature detection device, each temperature detection device detects the temperature of the heating plate and is electrically connected to the input end of the controller, the controller controls the electromagnetic heating controller according to the temperature of the heating plate detected by the temperature detection device, and the electromagnetic heating controller controls the corresponding electromagnetic coil to heat so that the temperature of the heating plate is consistent.

2. A flat-plate electromagnetic heating module laminator as claimed in claim 1, characterized in that: The temperature detection devices corresponding to the different electromagnetic coils are distributed along the extension direction of the diagonal line.

3. A flat-plate electromagnetic heating module laminator according to claim 1, characterized in that: There is a distance between the heating plate and the electromagnetic coil mounting plate, and a non-magnetic insulation block is arranged between the two. The bolt rod used to connect the heating plate and the electromagnetic coil mounting plate passes through the insulation block, and the insulation block protects the bolt from being heated by the heating plate.

4. A flat-plate electromagnetic heating module laminating machine as claimed in claim 3, characterized in that: A heat insulation block is arranged below the heating plate and around the periphery of the heating plate, and the heat insulation block seals the heating plate and the electromagnetic coil mounting plate.

5. A flat-plate electromagnetic heating module laminating machine as claimed in claim 1, characterized in that: A heat-conducting plate made of non-magnetic conductive material is arranged below the heating plate, and the heat-conducting plate is in direct contact with the heating plate.

6. A flat-plate electromagnetic heating module laminating machine as claimed in claim 1, characterized in that: A non-magnetic electric heating sheet is also arranged in the low temperature area of ​​the heating plate. The electric heating sheet is located below the heating plate and is in direct contact and fixed connection with the heating plate.

7. A flat-plate electromagnetic heating module laminating machine as claimed in claim 6, characterized in that: A heat-conducting plate made of non-magnetic conductive material is arranged below the heating plate, and the electric heating plate is located between the heating plate and the heat-conducting plate.

8. A flat-plate electromagnetic heating module laminating machine as claimed in claim 1, characterized in that: The controller is a PID controller.

9. A flat-plate electromagnetic heating module laminating machine as claimed in claim 1, characterized in that: Each set of electromagnetic coils is equipped with at least one set of spare electromagnetic coils. An electromagnetic coil on-off controller is provided to control the on-off switching of the electromagnetic coil in use and its spare electromagnetic coil. When no current flows through the electromagnetic coil in use, the electromagnetic coil on-off controller controls the spare electromagnetic coil to be turned on by the power supply. The spare electromagnetic coil and the electromagnetic coil in use are arranged in parallel on the electromagnetic coil mounting plate, and the spare electromagnetic coil and the electromagnetic coil in use are located in the same plane or are arranged to be stacked up and down.

10. A flat-plate electromagnetic heating module laminating machine as claimed in claim 9, characterized in that: The electromagnetic coil on-off controller includes a contactor and an intermediate relay. The contactor is used to switch the normal electromagnetic coil and the electromagnetic coil in use and the power supply. One end of the contactor is connected to the power supply. The normally closed contact of the contactor is connected to the normal electromagnetic coil, and the normally open contact of the contactor is connected to the spare electromagnetic coil. The intermediate relay controls the opening or closing of the normally open contact and the normally closed contact of the contactor. A current detector is set to detect the current of the electromagnetic coil in use. The current detector is connected to the input end of the controller for electrical signals. When the current detector detects that there is no current in the heating circuit of the electromagnetic coil in use, it feeds back to the controller. The controller controls the normally open contact of the contactor to close and switches the heating circuit to the spare electromagnetic coil. When the fault of the original electromagnetic coil is eliminated, the controller controls the normally open contact to open and the normally closed contact to close. The controller is a PLC controller.

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