A dry film forming apparatus circuit

Abstract

The application provides a dry film forming equipment circuit, relates to the technical field of battery preparation equipment, and comprises a switching circuit, a motion control circuit and a heating control circuit, wherein the switching circuit comprises a rotary switch unit and a relay unit; the rotary switch unit comprises rotary switches SA1, SA3 and SA4; the relay unit comprises relays KA1, KA2 and KA3; the rotary switch SA3 is connected with the relay KA1, the rotary switch SA4 is connected with the relay KA2, the relays KA1 and KA2 are connected with the motion control circuit and are used for controlling the forward and reverse rotation of a motor; the rotary switch SA1 is connected with the relay KA3, the relay KA3 is connected with the heating control circuit and is used for controlling heating, the relay is controlled through the rotary switch, the strong current load is indirectly controlled, and the risk of electric shock caused by the direct contact of an operator with the strong current is avoided.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing equipment technology, and more specifically, to a dry film forming equipment circuit. Background Technology

[0002] With rapid socio-economic growth, people's demand for resources and energy is increasing, posing challenges to environmental governance. Therefore, the development and use of clean, efficient, and green new energy sources are urgently needed. As a key technology in the new energy field, the research and development of electrochemical energy storage devices has become a global hot topic. In particular, in recent years, automotive electrification has become an industry trend. Lithium-ion battery manufacturing technology is a key technology for the development of automotive electrification. Traditional lithium-ion battery manufacturing often uses a wet process, using water or organic solvents to prepare a slurry, which is then coated and dried. This process not only causes environmental pollution but also leads to significant energy consumption during drying, increasing manufacturing costs.

[0003] To address the above issues, dry electrode fabrication technology has become a hot application area in recent years. For dry continuous film deposition equipment using this technology, controlling heating and rolling motion is the core of its application. However, the circuits for heating and rolling motion are high-voltage circuits, and directly controlling high-voltage circuits can easily lead to operator injury. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a dry film forming equipment circuit.

[0005] The technical solution adopted by this invention to solve its technical problem is: a circuit for a dry film forming device, the improvement of which is: it includes a switching circuit, a motion control circuit, and a heating control circuit. The switching circuit includes a rotary switch unit and a relay unit; the rotary switch unit includes rotary switches SA1, SA3, and SA4; the relay unit includes relays KA1, KA2, and KA3; rotary switch SA3 is connected to relay KA1; rotary switch SA4 is connected to relay KA2; relays KA1 and KA2 are connected to the motion control circuit for controlling the forward and reverse rotation of the motor; rotary switch SA1 is connected to relay KA3; relay KA3 is connected to the heating control circuit for controlling heating.

[0006] In the above circuit, the motion control circuit includes frequency converters VF1 and VF2. Frequency converter VF1 is connected to both relays KA1 and KA2, and frequency converter VF2 is connected to both relays KA1 and KA2.

[0007] Inverter VF1 and inverter VF2 are connected to the motor to control its forward and reverse rotation.

[0008] In the above circuit, the heating control circuit includes a temperature control unit and a heating unit. The temperature control unit includes temperature controllers TC1, TC2, TC3, TC4, TC5, TC6, TC7, TC8, and TC9. The heating unit includes solid-state relays K1, K2, and K3. Relay K3 is electrically connected to solid-state relays K1, K2, and K3.

[0009] Temperature controllers TC1, TC2, and TC3 are respectively connected to the temperature sensing head in the upper roller. Temperature controller TC1 is connected to solid-state relay K2. Temperature controller TC1 is connected to temperature controller TC2. Temperature controller TC2 is connected to temperature controller TC3. Temperature controller TC3 is connected to solid-state relay K2. Solid-state relay K2 is connected to the heating element of the upper roller to control the heating of the upper roller.

[0010] Temperature controllers TC4, TC5, and TC6 are connected to the temperature sensor in the lower roller, respectively. Temperature controller TC4 is connected to solid-state relay K1, temperature controller TC4 is connected to temperature controller TC5, temperature controller TC5 is connected to temperature controller TC6, temperature controller TC6 is connected to solid-state relay K1, and solid-state relay K1 is connected to the heating element of the lower roller to control the heating of the lower roller.

[0011] Temperature controllers TC7, TC8, and TC9 are connected to the temperature sensor in the ceramic. Temperature controller TC7 is connected to solid-state relay K3. Temperature controller TC7 is connected to temperature controller TC8. Temperature controller TC8 is connected to temperature controller TC9. Temperature controller TC9 is connected to solid-state relay K3. Solid-state relay K3 is connected to the heating tube in the ceramic to control the heating of the ceramic.

[0012] In the above circuit, the heating unit further includes AC contactors KM1, KM2, and KM3.

[0013] An AC contactor KM1 is located between the relay KA3 and the solid-state relay K1, and is used to control the energization of the solid-state relay K1.

[0014] An AC contactor KM2 is located between the relay KA3 and the solid-state relay K2, and is used to control the power-on of the solid-state relay K2;

[0015] An AC contactor KM3 is located between the relay KA3 and the solid-state relay K3, and is used to control the power-on of the solid-state relay K3.

[0016] The circuit described above also includes a protection circuit, which includes emergency stop switches SE1, SE2, and SE3 connected in series, as well as a switching power supply G1. Emergency stop switches SE1, SE2, and SE3 are all connected to the switching power supply G1, which is also connected to relays KA1, KA2, and KA3. This circuit is used to control the on / off state of the motion control circuit and the heating control circuit.

[0017] The circuit described above also includes an indicator light circuit, including a power-on indicator light L1, a heating indicator light L2, and a motion indicator light L3. The relay unit also includes a relay KA4.

[0018] The power-on indicator light L1 is connected to the switching power supply G1 to indicate the power-on status of the device;

[0019] The heating indicator light L2 is connected to the relay KA3 and is used to indicate the working status of the heating control circuit;

[0020] Motion indicator light L3 is connected to relay KA4, and relay KA4 is connected to relay KA1, used to indicate the working status of the motion control circuit.

[0021] The beneficial effects of this invention are: it enables the indirect control of high-voltage loads by controlling relays through rotary switches, thus avoiding the risk of electric shock to operators who directly contact high voltage; and it can automatically control heating and de-heating, with multiple temperature controllers connected in series to prevent safety hazards or accidents caused by continued heating when some temperature sensors fail. Attached Figure Description

[0022] Appendix Figure 1 This is a circuit diagram of a dry film-forming device according to the present invention.

[0023] Appendix Figure 2 This is a circuit diagram of the switching circuit in a dry film forming equipment according to the present invention.

[0024] Appendix Figure 3 This is a circuit diagram of the motion control circuit and the heating control circuit in a dry film forming equipment according to the present invention.

[0025] Appendix Figure 4 This is a circuit diagram of the temperature control unit in a dry film forming equipment according to the present invention. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0028] Reference Figure 1 As shown, the main air switch QF1 is connected to the power supply, providing power to the dry film deposition equipment circuit of the present invention. The dry film deposition equipment circuit of the present invention includes a switching circuit, a motion control circuit 20, and a heating control circuit, combined with... Figure 2 As shown, the switching circuit includes a rotary switch unit 101 and a relay unit 102; the rotary switch unit 101 includes rotary switches SA1, SA3, and SA4, all of which are Chint NP2-BD21; the relay unit 102 includes relays KA1, KA2, and KA3, all of which are Chint NXJ / 2Z(D). Figure 3As shown, the motion control circuit 20 includes frequency converters VF1 and VF2, both of which are Jingyan C150. Rotary switch SA3 is connected to relay KA1, and rotary switch SA4 is connected to relay KA2. Relays KA1 and KA2 are connected to frequency converters VF1 and VF2 in the motion control circuit 20. Frequency converters VF1 and VF2 are connected to the motor to control its forward and reverse rotation, thus achieving roller rolling. By switching the states of rotary switches SA4 and SA3, the on / off state of relays KA2 and KA1 can be controlled. When rotary switch SA3 switches its state and the coil of relay KA1 is energized, the 5th and 9th contacts of relay KA1 close, and the 8th contact... When the 12th contact is closed, and the coil of relay KA1 is energized, the 1st contact of relay KA2 closes with the 9th contact, and the 4th contact closes with the 12th contact. Inverters VF1 and VF2 control the motor to rotate forward by default. When the coil of relay KA2 is energized, the 5th contact closes with the 9th contact, and the 8th contact closes with the 12th contact. Inverters VF1 and VF2 then switch states to control the motor to rotate in reverse. Rotary switch SA1 is connected to relay KA3, and relay KA3 is connected to the heating control circuit 30. This circuit is used for heating control during the operation of the dry film forming equipment. It achieves indirect control of the high-voltage load by controlling the relay through the rotary switch, avoiding the risk of electric shock to operators from direct contact with high voltage.

[0029] Combination Figure 4As shown, the main air switch QF1 is connected to three upper roller heating elements, three lower roller heating elements, and three heating ceramics to provide heating power. The main air switch QF1 is model NXMLE-125S. The heating control circuit includes a temperature control unit 301 and a heating unit 302. The temperature control unit 301 includes temperature controllers TC1, TC2, TC3, TC4, TC5, TC6, TC7, TC8, and TC9. All nine temperature controllers are model E5CC-QX2ASM-001. The heating unit 302 includes solid-state relays K1, K2, and K3, and AC contactors KM1, KM2, and KM3. Solid-state relays K1 and K2 are model LSR-80DA, solid-state relay K3 is model LSR-25DA, AC contactors KM1 and KM2 are model NXC-65A220V50HZ, and AC contactor KM3 is model NXC-18AC220V. Relay KA3 is electrically connected to solid-state relays K1, K2, and K3. AC contactor KM1 is located between relay KA3 and solid-state relay K1, controlling the energization of solid-state relay K1; AC contactor KM2 is located between relay KA3 and solid-state relay K2, controlling the energization of solid-state relay K2; and AC contactor KM3 is located between relay KA3 and solid-state relay K3, controlling the energization of solid-state relay K3.

[0030] Combination Figure 3 As shown, temperature controllers TC1, TC2, and TC3 have their 5th and 6th pins connected to the temperature sensors in the three upper rollers, respectively. The temperature sensors collect data on the temperature of the upper rollers and compare the current collected value with the preset values ​​of temperature controllers TC1, TC2, and TC3. The 1st pin of temperature controller TC1 is connected to the 2nd pin of solid-state relay K2, the 2nd pin of temperature controller TC1 is connected to the 7th pin of temperature controller TC2, the 8th pin of temperature controller TC2 is connected to the 7th pin of temperature controller TC3, and the 8th pin of temperature controller TC3 is connected to the 1st pin of solid-state relay K2. Solid-state relay K2 is connected to the heating element of the upper roller to control the heating of the upper rollers, thereby achieving self-regulation control of the temperature of the heating elements of the three upper rollers and maintaining the working temperature of the three upper rollers. Furthermore, the three temperature controllers are connected in series to prevent the heating from continuing when some temperature sensors fail, which could lead to safety hazards or accidents.

[0031] Temperature controllers TC4, TC5, and TC6 have their pins 5 and 6 connected to the temperature sensors in the three lower rollers, respectively. These sensors collect temperature data from the lower rollers and compare it with preset values ​​set by temperature controllers TC4, TC5, and TC6. Pin 1 of temperature controller TC4 is connected to pin 2 of solid-state relay K1, pin 2 of temperature controller TC4 is connected to pin 7 of temperature controller TC5, pin 8 of temperature controller TC5 is connected to pin 7 of temperature controller TC6, and pin 8 of temperature controller TC6 is connected to pin 1 of solid-state relay K1. Solid-state relay K1 is connected to the heating element of the lower roller, controlling the heating of the lower rollers and achieving self-regulation of the temperature of the three lower roller heating elements to maintain the operating temperature of the three lower rollers. Furthermore, the three temperature controllers are connected in series to prevent continued heating when some temperature sensors fail, thus avoiding safety hazards or accidents.

[0032] Temperature controllers TC7, TC8, and TC9 are configured such that pins 5 and 6 of these controllers are connected to temperature sensors in the three ceramic elements. These sensors collect temperature data from the ceramic elements and compare it with preset values ​​set by temperature controllers TC7, TC8, and TC9. Pin 1 of temperature controller TC7 is connected to pin 2 of solid-state relay K3, pin 2 of temperature controller TC7 is connected to pin 7 of temperature controller TC8, pin 8 of temperature controller TC8 is connected to pin 7 of temperature controller TC9, and pin 8 of temperature controller TC9 is connected to pin 1 of solid-state relay K3. Solid-state relay K3 is connected to the heating element in the ceramic element to control the heating of the ceramic element. This self-regulating control of the temperature of the three ceramic elements maintains their operating temperature. Furthermore, the three temperature controllers are connected in series to prevent continued heating and potential safety hazards or accidents caused by the failure of some temperature sensors.

[0033] The rotary switch SA1 controls the on / off state of the relay KA3 coil. The negative terminals of the coils of AC contactors KM1, KM2, and KM3 are energized from the 5th contact of relay KA3. The state of rotary switch SA1 changes, the relay KA3 coil is energized, and the 5th and 9th contacts of relay KA3 close. The coils of AC contactors KM1, KM2, and KM3 are energized, and solid-state relays K1, K2, and K3 are also energized, thus realizing the heating control of the 3 upper roller heating tubes, 3 lower roller heating tubes, and 3 heating ceramics.

[0034] Each roller uses an independent temperature controller and thermocouple. Taking the upper and lower parts of the structure as the boundary, all rollers on the upper interface are independently controlled by AC contactors and solid-state relays, and all rollers on the lower interface are also independently controlled by AC contactors and solid-state dual-contact relays. At the same time, another contact controls the heating indicator light to illuminate. The ceramic heating part is also independently controlled by AC contactors and solid-state relays. The control coils of these three AC contactors use relays to control the heating start and stop, and then use a rotary switch to control the relay coils, indirectly controlling the heating start and stop. The temperature controller is set to normally closed control, and a certain temperature is set. When the heating reaches the preset temperature value, the heating of the upper roller, lower roller and ceramic part will be maintained at the preset temperature.

[0035] Furthermore, in combination Figure 1 As shown, the dry film forming equipment circuit of the present invention also includes a protection circuit 40. The protection circuit 40 includes emergency stop switches SE1, SE2, and SE3 connected in series, and a switching power supply G1. The switching power supply G1 is an EDR-75-24. Emergency stop switches SE1, SE2, and SE3 are all connected to the switching power supply G1. The switching power supply G1 is also connected to relays KA1, KA2, and KA3. It is used to control the on / off state of the motion control circuit 20 and the heating control circuit. In an emergency, the switching power supply G1 can be de-energized by emergency stop switches SE1, SE2, and SE3, so that relays KA1, KA2, and KA3 are also de-energized, and the heating and motor forward and reverse rotation controlled by relays KA1, KA2, and KA3 are stopped.

[0036] Furthermore, in combination Figure 1 As shown, the present invention also includes an indicator light circuit 50, including a power-on indicator light L1, a heating indicator light L2, and a motion indicator light L3. The relay unit 102 also includes a relay KA4, the model of which is Chint NXJ / 2Z(D). The power-on indicator light L1 is connected to the switching power supply G1 to indicate the power-on status of the device, indicating that the device is energized. The heating indicator light L2 is connected to the relay KA3 to indicate the working status of the heating control circuit. The motion indicator light L3 is connected to the relay KA4, and the relay KA4 is connected to the relay KA1 to indicate the working status of the motion control circuit 20. Power is supplied to the indicator light circuit 50 through the main air switch QF1. A power-on indicator light L1 is connected in series between the circuit breaker QF4 and the switching power supply G1. The 8th contact of relay KA3 is connected to any end of the coil of the heating indicator light L2, and the other end of the heating indicator light L2 is connected to the R phase. The 12th contact of relay KA3 is connected to the neutral wire. The 5th contact of relay KA4 is connected to any end of the motion indicator light L3 (i.e., the motor start / stop indicator light), and the other end of the motion indicator light L3 is connected to the S phase. The 9th contact of relay KA4 is connected to the neutral wire.

[0037] The dry film deposition equipment circuit of this invention realizes the control of the on / off state of each circuit in the dry film deposition equipment circuit by controlling relays through rotary switches. Rotary switch SA3 controls the start / stop of relay KA1 and the on / off state of motion indicator L3. The 9th and 12th contacts of relay KA1 are connected to the 9th and 12th contacts of relay KA2, realizing relay KA1 controlling relay KA2. Rotary switch SA4 controls the start and stop of relay KA2. The 1st contact K of relay KA2 is connected to the FWD contact of inverter VF1 to control the motor to rotate forward, and the 5th contact of relay KA2 is connected to the REV contact of inverter VF1 to control the motor to rotate in reverse. The 4th contact of relay KA2 is connected to the FWD contact of inverter VF2 to control the motor to rotate forward, and the 8th contact of relay KA2 is connected to the REV contact of inverter VF2 to control the motor to rotate in reverse, realizing that the forward and reverse rotation of inverters VF1 and VF2 are in the same direction. Rotary switch SA1 controls the start / stop of relay KA3 and the switching of heating indicator light L2. The 5th contact of relay KA3 is connected to terminal block KA3.51, which is wired to the coil contact of AC contactor KM2. KA3.53 is wired to the coil contact of AC contactor KM1, and KA3.52 is wired to the coil contact of AC contactor KM3. The 9th contact of relay KA3 is connected to the neutral wire. The dual drive rollers use a rotary switch for inverter speed regulation, achieving the required parallelism adjustment of the upper and lower drive rollers.

[0038] The dry film-forming equipment circuit of the present invention enables indirect control of high-voltage loads by controlling relays through rotary switches, avoiding the risk of electric shock to operators who directly contact high voltage; and can automatically control heating and de-heating, with multiple temperature controllers connected in series to prevent safety hazards or accidents caused by continued heating when some temperature sensors fail.

[0039] The above is a detailed description of the preferred embodiments of the present invention. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A circuit for a dry film deposition apparatus, characterized in that: It includes a switching circuit, a motion control circuit, and a heating control circuit. The switching circuit includes a rotary switch unit and a relay unit. The rotary switch unit includes rotary switch SA1, rotary switch SA3, and rotary switch SA4; the relay unit includes relay KA1, relay KA2, and relay KA3. Rotary switch SA3 is connected to relay KA1, rotary switch SA4 is connected to relay KA2, and relays KA1 and KA2 are connected to the motion control circuit to control the forward and reverse rotation of the motor. Rotary switch SA1 is connected to relay KA3, and relay KA3 is connected to the heating control circuit for controlling heating; The motion control circuit includes frequency converters VF1 and VF2. Frequency converter VF1 is connected to both relays KA1 and KA2, and frequency converter VF2 is connected to both relays KA1 and KA2. Frequency converters VF1 and VF2 are connected to the motor to control the forward and reverse rotation of the motor. The heating control circuit includes a temperature control unit and a heating unit. The temperature control unit includes temperature controllers TC1, TC2, TC3, TC4, TC5, TC6, TC7, TC8, and TC9. The heating unit includes solid-state relays K1, K2, and K3. Relay K3 is electrically connected to solid-state relays K1, K2, and K3. Temperature controllers TC1, TC2, and TC3 are respectively connected to the temperature sensing head in the upper roller. Temperature controller TC1 is connected to solid-state relay K2. Temperature controller TC1 is connected to temperature controller TC2. Temperature controller TC2 is connected to temperature controller TC3. Temperature controller TC3 is connected to solid-state relay K2. Solid-state relay K2 is connected to the heating element of the upper roller to control the heating of the upper roller. Temperature controllers TC4, TC5, and TC6 are connected to the temperature sensor in the lower roller, respectively. Temperature controller TC4 is connected to solid-state relay K1, temperature controller TC4 is connected to temperature controller TC5, temperature controller TC5 is connected to temperature controller TC6, temperature controller TC6 is connected to solid-state relay K1, and solid-state relay K1 is connected to the heating element of the lower roller to control the heating of the lower roller. Temperature controllers TC7, TC8, and TC9 are connected to the temperature sensor in the ceramic. Temperature controller TC7 is connected to solid-state relay K3. Temperature controller TC7 is connected to temperature controller TC8. Temperature controller TC8 is connected to temperature controller TC9. Temperature controller TC9 is connected to solid-state relay K3. Solid-state relay K3 is connected to the heating tube in the ceramic to control the heating of the ceramic.

2. The circuit of a dry film deposition equipment as described in claim 1, characterized in that: The heating unit also includes AC contactors KM1, KM2, and KM3. An AC contactor KM1 is located between the relay KA3 and the solid-state relay K1, and is used to control the energization of the solid-state relay K1. An AC contactor KM2 is located between the relay KA3 and the solid-state relay K2, and is used to control the power-on of the solid-state relay K2; An AC contactor KM3 is located between the relay KA3 and the solid-state relay K3, and is used to control the power-on of the solid-state relay K3.

3. The circuit of a dry film deposition equipment as described in claim 2, characterized in that: It also includes a protection circuit, which includes emergency stop switches SE1, SE2 and SE3 connected in series, and a switching power supply G1. Emergency stop switches SE1, SE2 and SE3 are all connected to the switching power supply G1, and the switching power supply G1 is connected to relays KA1, KA2 and KA3, which are used to control the on and off of the motion control circuit and the heating control circuit.

4. The circuit of a dry film deposition equipment as described in claim 3, characterized in that: It also includes an indicator light circuit, including a power-on indicator light L1, a heating indicator light L2, and a motion indicator light L3; the relay unit also includes a relay KA4. The power-on indicator light L1 is connected to the switching power supply G1 to indicate the power-on status of the device; The heating indicator light L2 is connected to the relay KA3 and is used to indicate the working status of the heating control circuit; Motion indicator light L3 is connected to relay KA4, and relay KA4 is connected to relay KA1, used to indicate the working status of the motion control circuit.

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