TWM594894U - Circuit control device of electrical cabinet - Google Patents

Abstract

This creation discloses a circuit control device for an electrical cabinet. The circuit control device of the electrical cabinet includes: a microprocessor unit, a first power supply line, a first current detection unit, a first power supply switch unit, a second power supply line, a second current detection unit, a second power supply switch unit, and an exhaust fan control unit. The first power cord is configured to be electrically connected between the commercial power and the first socket unit. The second power line is configured to be electrically connected between the commercial power and the second socket unit. The first current detection unit is configured to be electrically connected between the first power line and the microprocessor unit, and the second current detection unit is configured to be electrically connected between the second power line and the microprocessor unit so that the microprocessor The unit can determine the first current supplied to the first socket unit via the first power line, and can determine the second current supplied to the second socket unit via the second power line, and accordingly control the exhaust fan unit, the first power supply switch unit and Second power supply switch unit.

Description

Circuit control device of electrical cabinet

This creation relates to an electrical cabinet, in particular to a circuit control device of the electrical cabinet.

At present, electric appliances such as electric pots, electronic pots, stew pots, and ovens are used in the kitchens of ordinary households for cooking. With the improvement of the quality of life, modern people pay more and more attention to the overall design of the kitchen. Therefore, the industry currently provides electrical cabinets that are useful for accommodating the above electrical appliances, and two socket units are provided in the electrical cabinet for placement in the electrical cabinet The two electrical appliances inside are plugged in, thereby providing power to the two electrical appliances in the electrical cabinet.

However, the two socket units provided in the conventional electrical cabinet are connected together in parallel, and are simultaneously supplied to the two socket units through a single power cord on the circuit control device of the electrical cabinet, causing the power cord to easily overheat. Current, so that the current transformer connected to the power line detects an overcurrent, so that the electrical cabinet cuts off the power supply, so that the two electrical appliances in the electrical cabinet cannot operate at the same time.

In view of this, the inventor of this creation has been engaged in the development and design of related products for many years, and feels that the above-mentioned deficiencies can be improved. It is especially dedicated to research and cooperate with the application of academic principles. Finally, he proposes a reasonable design and effectively improves the above-mentioned deficiencies. .

The technical problem to be solved in this creation is to provide a circuit control device for electrical cabinets in view of the deficiencies of the prior art.

In order to solve the above technical problems, one of the technical solutions adopted in this creation is to provide a circuit control device for an electrical cabinet, which is installed in the electrical cabinet, the electrical cabinet can be connected to the commercial power, and the electrical cabinet is provided with a first A socket unit, a second socket unit, and an exhaust fan unit, the circuit control device of the electrical cabinet includes: a microprocessor unit, a first power line, a first current detection unit, a first power supply switch unit, a second power line, a Two current detection units, a second power supply switch unit, and an exhaust fan control unit; the first power cord is configured to be electrically connected between the commercial power and the first socket unit, and the first power cord is connected to all The first power supply switch unit controlled by the micro-processing unit is more electrically connected between the first socket units; the second power line is configured to be electrically connected to the commercial power and the second socket Between the units, and the second power supply line and the second socket unit are more electrically connected to the second power supply switch unit controlled by the micro-processing unit; the exhaust fan control unit is configured to electrically Is connected between the microprocessor unit and the exhaust fan unit; the first current detection unit is configured to be electrically connected between the first power line and the microprocessor unit, the second The current detection unit is configured to be electrically connected between the second power line and the microprocessor unit, so that the microprocessor unit can determine whether to pass the first current detection unit according to the feedback The power line supplies the first current to the first socket unit, and can determine the second current supplied to the second socket unit via the second power line according to the feedback of the second current detection unit, when the first current and When at least one of the second current exceeds a first threshold, the microprocessor unit notifies the exhaust fan control unit to activate the exhaust fan unit, when at least one of the first current and the second current exceeds one When the second threshold value is greater than the first threshold value, the microprocessor unit turns off the corresponding first power supply switch unit and/or second power supply switch unit to stop power supply to the first socket unit and/or the second socket unit.

In a preferred embodiment, the circuit control device of the electrical cabinet further includes: a temperature detection unit electrically connected to the microprocessor unit for detecting the temperature in the electrical cabinet , The microprocessor unit determines the temperature in the electrical cabinet according to the feedback of the temperature detection unit, and when the temperature in the electrical cabinet exceeds a predetermined temperature threshold, the microprocessor unit notifies the exhaust fan The control unit activates the exhaust fan unit.

In a preferred embodiment, the circuit control device of the electrical cabinet further includes: an operation panel unit, the operation panel unit is electrically connected to the microprocessor unit for controlling the microprocessor unit Start, and control the microprocessor unit to enter an automatic mode or a manual mode, when the microprocessor unit enters the automatic mode, drive the first current detection unit, the second current detection unit, and the The temperature detection unit detects, when the microprocessor unit determines the first current and the second according to the feedback of the first current detection unit, the second current detection unit, and the temperature detection unit When the current does not exceed the first threshold and the temperature in the electrical cabinet does not exceed the predetermined temperature threshold, the microprocessor unit notifies the exhaust fan control unit to turn off the exhaust fan unit, when the microprocessor unit According to the feedback of the first current detection unit, the second current detection unit, and the temperature detection unit, it is determined that the first current or the second current exceeds the first threshold or in the electrical cabinet When the temperature exceeds the predetermined temperature threshold, the microprocessor unit notifies the exhaust fan control unit to activate the exhaust fan unit, when the microprocessor unit determines that the first current and the second current do not exceed again When the first threshold value and the temperature in the electrical cabinet do not exceed the predetermined temperature threshold value again, the microprocessor unit notifies the exhaust fan control unit to turn off the exhaust fan unit after a predetermined time, so that the exhaust fan The unit is still running for the predetermined time and then shuts down; when the microprocessor unit enters the manual mode, the exhaust fan control unit is notified to activate the exhaust fan unit, and after the exhaust fan unit operates for more than a predetermined operating time, all The microprocessor unit automatically switches into the automatic mode and drives the first current detection unit, the second current detection unit, and the temperature detection unit to detect when the microprocessor unit is based on the first Feedback from a current detection unit, the second current detection unit, and the temperature detection unit to determine that the first current and the second current do not exceed the first threshold and the temperature in the electrical cabinet is not When the predetermined temperature threshold is exceeded, the microprocessor unit notifies the exhaust fan control unit to turn off the exhaust fan unit.

In a preferred embodiment, the circuit control device of the electrical cabinet further includes: a timing unit electrically connected to the microprocessor unit for timing and providing time to the microprocessor Unit, when both the first current and the second current are lower than the first threshold, the microprocessor unit drives the timing unit to perform timing, and when the timing reaches a predetermined time, the microprocessing The fan unit notifies the exhaust fan control unit to activate the exhaust fan unit.

In a preferred embodiment, the circuit control device of the electrical cabinet further includes: a temperature detection unit electrically connected to the microprocessor unit for detecting the temperature in the electrical cabinet , The microprocessor unit determines the temperature in the electrical cabinet according to the feedback of the temperature detection unit, and when the temperature in the electrical cabinet exceeds a predetermined temperature threshold, the microprocessor unit notifies the exhaust fan The control unit starts the exhaust fan unit; wherein the temperature detection unit is configured to start detecting the temperature in the electrical cabinet only when both the first current and the second current are lower than the first threshold.

In a preferred embodiment, the microprocessor unit is further configured to determine the maximum and minimum values of the first current through multiple feedbacks of the first current detection unit, when the maximum value of the first current If the difference between the value and the minimum value is a predetermined multiple, the minimum value of the first current is multiplied by a predetermined coefficient as a first predetermined value, and the microprocessor unit also receives multiple feedbacks from the second current detection unit Determine the maximum and minimum values of the second current, when the maximum and minimum values of the second current differ by a predetermined multiple, the minimum value of the second current is multiplied by a predetermined coefficient as a second predetermined value, And compare the size of the first predetermined value with the second predetermined value, when the first predetermined value is less than the second predetermined value, the first predetermined value is set as the first threshold, when If the first predetermined value is greater than the second predetermined value, the second predetermined value is set as the first threshold.

In a preferred embodiment, the first current detection unit is a first current comparator that can be socketed on the first power line, and the second current detection unit is a socket that can be socketed on the second The second current comparator on the power line.

In a preferred embodiment, the first power supply switch unit is a first relay switch, and the second power supply switch unit is a second relay switch.

In a preferred embodiment, the circuit control device of the electrical cabinet is arranged on the electrical cabinet in the form of a control substrate.

In a preferred embodiment, the first power supply line, the first current detection unit, the first power supply switching unit, the second power supply line, the second current detection unit, and the second The power supply switch unit is provided on a substrate.

One of the beneficial effects of this creation is that the circuit control device of the electrical cabinet provided by this creation is configured to be electrically connected between the commercial power and the first socket unit through the first power cord on the circuit control device of the electrical cabinet. The mains power is supplied to the first socket unit through the loop formed by the first power line, and the second power line is configured to be electrically connected between the mains power and the second socket unit, so that the mains power is looped through the second power line Power is supplied to the second socket unit, so that the mains power is supplied to the first socket unit and the second socket unit through the loops of the first power line and the second power line on the circuit control device of the electrical cabinet, respectively The overall power supply current of the circuit control device can be greatly increased, and the circuit is more safe and stable. Moreover, the circuit control device of the electrical cabinet provided by the author can determine the first current supplied to the first socket unit via the first power line according to the feedback of the first current detection unit nested on the first power line, and at the same time can be based on The feedback of the second current detection unit on the second power line determines the second current supplied to the second socket unit through the second power line, so that each current detection unit can detect the current consumption of the corresponding electrical appliance separately It is safe, stable, and accurate, and can avoid a single power line on the circuit control device of the conventional electrical cabinet to supply power to two appliances at the same time, causing the power cord to easily overheat and cut off the power supply, so that the two appliances cannot operate at the same time. The phenomenon.

In order to further understand the characteristics and technical content of this creation, please refer to the following detailed description and drawings of this creation. However, the drawings provided are for reference and explanation only, and are not intended to limit this creation.

The following are specific specific examples to illustrate the implementation of the "circuit control device for electrical cabinets" disclosed in this creation. Those skilled in the art can understand the advantages and effects of this creation by the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments. The details in this specification can also be based on different views and applications, and various modifications and changes can be made without departing from the concept of this creation. In addition, the drawings in this creation are only a schematic illustration, not based on actual size, and are declared in advance. The following embodiments will further describe the relevant technical content of the creation, but the disclosed content is not intended to limit the protection scope of the creation. It should be understood that although terms such as “first” and “second” may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" as used herein may include any combination of any one or more of the associated listed items, depending on the actual situation.

Referring to FIG. 1 and FIG. 2, the present embodiment provides a circuit control device 100 for an electrical cabinet, which is installed in the electrical cabinet 900, and the electrical cabinet 900 is provided with a first socket unit 901, a second socket unit 902, and an exhaust fan Unit 903. The circuit control device 100 of the electrical cabinet of this embodiment includes: a microprocessor unit 101, a first power line 102, a first current detection unit 103, a first power supply switch unit 104, a second power line 105, a second current detection unit 106, a second power supply switch unit 107, and an exhaust fan control unit 108. The circuit control device 100 of the electrical cabinet of this embodiment may also have components such as transformers, rectifiers, filters, transistors, etc., which are prior art and are not the focus of this case, and will not be repeated here. The electrical cabinet 900 of this embodiment can be connected to the commercial power 200, that is, the electrical cabinet 900 can have a plug connected to a general household outlet, so that the commercial power 200 can supply power to the circuit control device 100 of the electrical cabinet, and through the circuit control device of the electrical cabinet 100 supplies power to the first socket unit 901 and the second socket unit 902, so that the first socket unit 901 and the second socket unit 902 can supply the power required for the operation of the electrical appliances contained in the electrical cabinet 900. The electrical cabinet 900 is designed as a box in this embodiment, has a door panel 904 on the front, is hollow inside and may be provided with a tray 905 drawn outward, and two electrical appliances, such as an electric cooker and a stew pot, may be placed on the tray 905. It should be noted that the shape and structure of the electrical cabinet 900 can be designed according to requirements, and are not limited herein.

The circuit control device 100 of the electrical cabinet may be in the form of a control board or a control box, and may be designed according to actual needs, which is not limited herein. In this embodiment, the circuit control device 100 of the electrical cabinet may be provided on the electrical cabinet 900 in the form of a control substrate, a microprocessor unit 101, a first power line 102, a first current detection unit 103, a first power supply switch unit 104, In this embodiment, the second power line 105, the second current detection unit 106, the second power supply switch unit 107, and the exhaust fan control unit 108 may be provided on the substrate 150, and the microprocessor unit 101 may also be provided separately. On one substrate, connect the two substrates with a cable.

In this embodiment, the first power line 102 on the circuit control device 100 of the electrical cabinet is configured to be electrically connected between the mains power 200 and the first socket unit 901, so that the mains power 200 is powered by the loop formed by the first power line 102 To the first socket unit 901, and in this embodiment, the second power line 105 is configured to be electrically connected between the commercial power 200 and the second socket unit 902, so that the commercial power 200 is supplied to the circuit via the loop formed by the second power line 105 The second socket unit 902, so that the mains power 200 supplies power to the first socket unit 901 and the second socket unit 902 via the loops of the first power line 102 and the second power line 105 on the circuit control device 100 of the electrical cabinet, Therefore, the overall power supply current of the circuit control device 100 of the electrical cabinet can be greatly increased, from 15 amps to 20 amps, and the circuit is more safe and stable.

Furthermore, the first current detection unit 103 on the circuit control device 100 of the electrical cabinet is configured to be electrically connected between the first power line 102 and the microprocessor unit 101 in this embodiment. The first current detection unit 103 is used to detect the first current on the first power line 102. In other words, the first current detection unit 103 can detect the magnitude of the current flowing through the first power line 102 and generate a current detection signal according to the result to the microprocessor unit 101. In addition, the second current detection unit 106 on the circuit control device 100 of the electrical cabinet is configured to be electrically connected between the second power line 105 and the microprocessor unit 101 in this embodiment. The second current detection unit 106 is used to detect the second current on the second power line 105. In other words, the second current detection unit 106 can detect the magnitude of the current flowing through the second power line 105, and generate a current detection signal according to the result to the microprocessor unit 101.

The specific forms of the first current detection unit 103 and the second current detection unit 106 may be designed according to actual requirements. For example, the first current detection unit 103 and the second current detection unit 106 may be a current-transformer (Current-Transformer), a current-shunt (Current-Shunt), a Hall effect current sensor, a current detector, respectively , The current detection circuit or the corresponding circuit is not limited here. In this embodiment, the first current detection unit 103 may be a first current comparator connected to the first power line 102, and the second current detection unit 106 may also be connected to the second power supply in this embodiment. The second current divider on line 105. In addition, a first amplifier circuit may be electrically connected between the first current detection unit 103 and the microprocessor unit 101, and a second amplifier may also be electrically connected between the second current detection unit 106 and the microprocessor unit 101 The circuit can output the current detection signal to the microprocessor unit 101 after being amplified, rectified and shaped, so that the microprocessor unit 101 can be easily interpreted and reduce the occurrence of misoperation.

In this embodiment, the first power supply switch unit 104 on the circuit control device 100 of the electrical cabinet is configured to be electrically connected between the first power cord 102 and the first socket unit 901, and electrically connected and controlled by the micro-processing The power supply unit 101 and the first power supply switch unit 104 can be switched between on and off states, and accordingly, it is determined whether the first power cord 102 communicates with the first socket unit 901. In addition, the second power supply switch unit 107 on the circuit control device 100 of the electrical cabinet is configured to be electrically connected between the second power line 105 and the second socket unit 902 in this embodiment, and electrically connected and controlled by The microprocessor unit 101 and the second power supply switch unit 107 can be switched between on and off states, and accordingly, it is determined whether the second power line 105 communicates with the second socket unit 902.

The specific forms of the first power supply switch unit 104 and the second power supply switch unit 107 may be designed according to actual requirements. For example, the first power supply switch unit 104 and the second power supply switch unit 107 may be mechanical switches, such as relays, etc., or electronic switches, such as triacs (TRIAC), etc. It can also be a switch circuit or a corresponding circuit, which is not limited here. In this embodiment, the first power supply switch unit 104 may be a first relay switch, and when the first relay switch is turned on, the commercial power 200 may supply power to the first socket unit 901 via the loop formed by the first power line 102. In this embodiment, the second power supply switch unit 107 may be a second relay switch, and when the second relay switch is turned on, the commercial power 200 may supply power to the second socket unit 902 via another loop formed by the second power line 105.

The exhaust fan control unit 108 on the circuit control device 100 of the electrical cabinet is configured to be electrically connected between the microprocessor unit 101 and the exhaust fan unit 903 in this embodiment, so that the microprocessor unit 101 can notify the exhaust fan control unit 108 to control the exhaust fan Unit 903 is turned on and off.

The specific form of the exhaust fan control unit 108 may be designed according to actual needs. For example, the exhaust fan control unit 108 may be a driving circuit, a switching circuit, a PWM circuit, a control circuit, or a corresponding circuit, which is not limited herein.

The actual operation of the circuit control device 100 of the above electrical cabinet may be: first, two electrical appliances, such as an electric cooker and a stew pot, are placed in the electrical cabinet 900 at the same time, and can be plugged into the first socket unit 901 and The second socket unit 902, when the electric cooker and the saucepan start to heat, the current will gradually increase, and the microprocessor unit 101 can judge the feedback via the first current detection unit 103 via the first power line 102 (provided on the substrate 150 (The thick red wire) supplies the first current to the first socket unit 901, and can determine the power supply to the first power supply via the second power line 105 (another thick red wire provided on the substrate 150) according to the feedback of the second current detection unit 106 The second current of the two socket units 902, that is, each current detection unit can independently detect the current consumption of the corresponding electrical appliance, and can avoid the single power line on the circuit control device of the conventional electrical cabinets to supply power to two at the same time One electrical appliance, causing the power cord to easily overheat and cut off the power supply, so that two electrical appliances cannot operate at the same time. Moreover, when the current consumption of at least one of the two appliances in the electrical cabinet 900 exceeds the first threshold, that is, when at least one of the first current and the second current exceeds the first threshold, the microprocessor unit 101 notifies the exhaust fan control unit 108 Activate the exhaust fan unit 903 to avoid the mutual influence of the heat generated during the operation of the appliance and improve the heat removal effect, and when at least one of the first current and the second current exceeds a second threshold greater than the first threshold, that is, two When the current consumption of at least one of the appliances exceeds the second threshold (safety threshold), for example, when the current consumption of the electric cooker exceeds the safety threshold, the microprocessor unit 101 only immediately turns off the corresponding first power supply switch unit 104, In order to stop the power supply to the first socket unit 901, the operation of the electric pot is stopped and the stew pot can continue to operate. When the current consumption of the electric pot and the stew pot exceeds the safety threshold, the microprocessor unit 101 immediately disconnects the first A power supply switch unit 104 and a second power supply switch unit 107 to stop power supply to the first socket unit 901 and the second socket unit 902.

In addition, since the current consumption of the two appliances such as the electric cooker and the saucepan will be different, and the microprocessor unit 101 can determine the power supplied to the first socket unit 901 via the first power cord 102 according to the feedback of the first current detection unit 103 The first current, and can determine the second current supplied to the second socket unit 902 via the second power line 105 according to the feedback of the second current detection unit 106, so the microprocessor unit 101 can pass through the first current detection unit 103 Feedback to determine the maximum and minimum values of the first current. When the maximum and minimum values differ by a predetermined multiple, the minimum value is multiplied by a predetermined coefficient as the first predetermined value, and the microprocessor unit 101 can simultaneously pass the second The current detection unit 106 feedbacks multiple times to determine the maximum and minimum values of the second current. When the maximum and minimum values differ by a predetermined multiple, the minimum value is multiplied by a predetermined coefficient as the second predetermined value, and the first predetermined value is compared With the size of the second predetermined value, when the first predetermined value is less than the second predetermined value, the first predetermined value is set as the first threshold, and when the first predetermined value is greater than the second predetermined value, the second predetermined value is set as The first threshold, by dynamically adjusting the first threshold in this way, even if the current consumption of the two appliances such as the electric cooker and the saucepan will be different, as long as at least one of the current consumption exceeds the first threshold, the exhaust fan control unit can be notified 108 starts the exhaust fan unit 903 to further improve the heat exhaust effect.

In different embodiments, as shown in FIG. 3, the circuit control device 100 of the electrical cabinet may further include a timing unit 109, which is electrically connected to the microprocessor unit 101 for timing and providing time to the microprocessor Unit 101. When the current consumption of at least one of the two appliances exceeds the first threshold, the microprocessor unit 101 drives the timing unit 109 to perform timing. When a predetermined time is reached, the microprocessor unit 101 notifies the exhaust fan control unit 108 to activate the exhaust fan unit 903 When the current consumption of at least one of the two appliances exceeds the second threshold, the microprocessor unit 101 does not drive the timing unit 109 for timing and immediately turns off the corresponding first power supply switch unit 104 or second power supply switch 107 to The power supply to the first socket unit 901 or the second socket unit 902 is stopped. In other embodiments, the timing unit 109 may be integrated into the microprocessor unit 101, that is, the microprocessor unit 101 may have a timer built in.

In addition, due to heat preservation, when the current consumption of both appliances is lower than the first threshold, the microprocessor unit 101 drives the timing unit 109 to perform timing. When the timing reaches a predetermined time, the microprocessor unit 101 notifies the exhaust fan The control unit 108 activates the exhaust fan unit 903 to discharge the heat generated after the two electrical appliances enter the heat preservation state for a period of time, so that the electrical cabinet 900 is free of moisture and mist.

In different embodiments, as shown in FIG. 4, the circuit control device 100 of the electrical cabinet may further include a temperature detection unit 110 electrically connected to the microprocessor unit 101 for detecting the temperature in the electrical cabinet 900 The microprocessor unit 101 can determine the temperature in the electrical cabinet 900 according to the feedback of the temperature detection unit 110. When the temperature in the electrical cabinet 900 exceeds a predetermined temperature threshold, the microprocessor unit 101 notifies the exhaust fan control unit 108 to start the exhaust fan Unit 903. In other embodiments, the temperature detection unit 110 may be configured to start detection only when both the first current and the second current are below the first threshold, that is, when the current consumption of both appliances is below the first threshold, the micro-processing The unit 101 drives the temperature detection unit 110 to detect, and when it is detected that the temperature in the electrical cabinet 900 exceeds a predetermined temperature threshold, the microprocessor unit 101 notifies the exhaust fan control unit 108 to activate the exhaust fan unit 903. In this way, through the assistance of the temperature detection function, the hot gas generated after the two electrical appliances enter the heat preservation state for a period of time can be discharged, so that there is no moisture or mist in the electrical cabinet 900.

In different embodiments, as shown in FIG. 5, the circuit control device 100 of the electrical cabinet may further include an operation panel unit 111, which may be a touch operation panel unit or a key operation panel unit. No restrictions. The operation panel unit 111 is electrically connected to the microprocessor unit 101 and can be used to control the startup of the microprocessor unit 101 and can control the microprocessor unit 101 to enter an automatic mode or a manual mode. In practice, the operation panel unit 111 may have at least a power key, an automatic key or a manual key, and may also have a display screen. When the power button is touched or pressed, the microprocessor unit 101 is activated, and the microprocessor unit 101 is turned on the first power supply switch unit 104 and the second power supply switch unit 107, so that the first socket unit 901 and the second socket unit 902 respectively supplies power to the two appliances, and the microprocessor unit 101 can be preset to enter the automatic mode after starting, and when the microprocessor unit 101 enters the automatic mode, the first current detection unit 103, the second current detection unit 106, and the temperature detection are driven Unit 110 performs the detection. In other words, the temperature detection unit 110 can be configured to start when the current consumption of both appliances is lower than the first threshold, or it can be configured to start when the microprocessor unit 101 enters the automatic mode. When the microprocessor unit 101 determines from the feedback of the first current detection unit 103, the second current detection unit 106, and the temperature detection unit 110, the first current and the second current do not exceed the first threshold and the temperature in the electrical cabinet 900 is not When the predetermined temperature threshold is exceeded, the microprocessor unit 101 notifies the exhaust fan control unit 108 to turn off the exhaust fan unit 903 and enter the standby state. When the microprocessor unit 101 determines that the first current or the second current exceeds the first threshold or the temperature in the electrical cabinet 900 exceeds the predetermined value according to the feedback of the first current detection unit 103, the second current detection unit 106, and the temperature detection unit 110 When the temperature threshold is reached, the microprocessor unit 101 notifies the exhaust fan control unit 108 to activate the exhaust fan unit 903. When the microprocessor unit 101 determines that the first current and the second current do not exceed the first threshold again and the temperature in the electrical cabinet 900 does not exceed the predetermined value again At the temperature threshold, the microprocessor unit 101 notifies the exhaust fan control unit 108 to turn off the exhaust fan unit 903 after a predetermined time, so that the exhaust fan unit 903 is still operated for the predetermined time and then shuts down, so that the hot air in the electrical cabinet 900 can be completely discharged. When the manual key is touched or pressed, the microprocessor unit 101 enters the manual mode. When the microprocessor unit 101 enters the manual mode, the exhaust fan control unit 108 is notified to activate the exhaust fan unit 903, and after the exhaust fan unit 903 operates for more than a predetermined operating time (such as 1 to 3 hours), the microprocessor unit 101 automatically switches into automatic Mode and drive the first current detection unit 103, the second current detection unit 106, and the temperature detection unit 110 to detect, when the microprocessor unit 101 according to the first current detection unit 103, the second current detection unit 106, and the temperature detection unit 110 feedback, when it is judged that the first current and the second current do not exceed the first threshold and the temperature in the electrical cabinet 900 does not exceed the predetermined temperature threshold, the microprocessor unit 101 notifies the exhaust fan control unit 108 to turn off the exhaust fan unit 903 and enter standby mode.

In summary, the circuit control device of the electrical cabinet provided by this creation is configured to be electrically connected between the commercial power 200 and the first socket unit 901 through the first power cord 102 on the circuit control device 100 of the electrical cabinet. The mains power 200 is supplied to the first socket unit 901 via the loop formed by the first power line 102, and the second power line 105 is configured to be electrically connected between the mains power 200 and the second socket unit 902, so that the mains power 200 passes through The loop formed by the second power line 105 supplies power to the second socket unit 902, so that the mains power 200 supplies power to the first through the loops of the first power line 102 and the second power line 105 on the circuit control device 100 of the electrical cabinet respectively The socket unit 901 and the second socket unit 902, so that the overall power supply current of the circuit control device 100 of the electrical cabinet can be greatly increased, and the circuit is more safe and stable. Moreover, the circuit control device 100 of the electrical cabinet provided by the present creation can determine the first power supply to the first socket unit 901 via the first power line 102 according to the feedback of the first current detection unit 103 sleeved on the first power line 102 A current, and at the same time, it can determine the second current supplied to the second socket unit 902 via the second power line 105 according to the feedback of the second current detection unit 106 on the second power line 105, so that each current detection unit The current consumption of the corresponding electrical appliances is detected separately, which is safer, more stable and more accurate, and can avoid that the single power cord on the circuit control device of the conventional electrical cabinets at the same time supplies power to two electrical appliances at the same time, causing the power cord to easily generate heat and overcurrent. Cut off the power supply, so that two electrical appliances can not operate simultaneously.

The content disclosed above is only a preferred and feasible embodiment of this creation, and does not limit the scope of the patent application for this creation, so any equivalent technical changes made by using this creation specification and graphic content are included in this creation application Within the scope of the patent.

900: electrical cabinet 901: the first socket unit 902: Second socket unit 903: Exhaust fan unit 904: Door panel 905: tray 100: Circuit control device of electrical cabinet 101: microprocessor unit 102: the first power cord 103: First current detection unit 104: first power supply switch unit 105: second power cord 106: Second current detection unit 107: Second power supply switch unit 108: Exhaust fan control unit 109: timing unit 110: temperature detection unit 111: Operation panel unit 150: substrate 200: Mains

FIG. 1 is a schematic diagram of a circuit control device of a creative electrical cabinet.

FIG. 2 is a functional block diagram (1) of the circuit control device of the creative electrical cabinet.

Fig. 3 is a functional block diagram (2) of the circuit control device of the creative electrical cabinet.

FIG. 4 is a functional block diagram (3) of the circuit control device of the creative electrical cabinet.

FIG. 5 is a functional block diagram (4) of the circuit control device of the creative electrical cabinet.

900: electrical cabinet

901: the first socket unit

902: Second socket unit

903: Exhaust fan unit

904: Door panel

905: tray

100: Circuit control device of electrical cabinet

102: the first power cord

103: First current detection unit

104: first power supply switch unit

105: second power cord

106: Second current detection unit

107: Second power supply switch unit

150: substrate

Claims (10)

A circuit control device for an electrical cabinet is provided in the electrical cabinet, the electrical cabinet can be connected to the commercial power, and the electrical cabinet is provided with a first socket unit, a second socket unit, and an exhaust fan unit, the electrical cabinet circuit The control device includes: a microprocessor unit, a first power supply line, a first current detection unit, a first power supply switch unit, a second power supply line, a second current detection unit, a second power supply switch unit, and an exhaust fan control unit; The first power line is configured to be electrically connected between the commercial power and the first socket unit, and the electrical connection between the first power line and the first socket unit is more controlled by the micro The first power supply switch unit of the processing unit; the second power line is configured to be electrically connected between the commercial power and the second socket unit, and the second power line and the second socket unit The second power supply switch unit controlled by the micro processing unit is more electrically connected between; the exhaust fan control unit is configured to be electrically connected between the microprocessor unit and the exhaust fan unit; The first current detection unit is configured to be electrically connected between the first power line and the microprocessor unit, and the second current detection unit is configured to be electrically connected to the second power line and the Between the microprocessor units, the microprocessor unit can determine the first current supplied to the first socket unit via the first power line according to the feedback of the first current detection unit, and can be based on The feedback of the second current detection unit determines the second current supplied to the second socket unit via the second power line, when at least one of the first current and the second current exceeds a first At a threshold, the microprocessor unit notifies the exhaust fan control unit to activate the exhaust fan unit, and when at least one of the first current and the second current exceeds a second threshold greater than the first threshold, The microprocessor unit turns off the corresponding first power supply switch unit and/or the second power supply switch unit to stop power supply to the first socket unit and/or the second socket unit. The circuit control device of the electrical cabinet according to claim 1, further comprising: a temperature detection unit electrically connected to the microprocessor unit for detecting the temperature in the electrical cabinet The microprocessor unit determines the temperature in the electrical cabinet according to the feedback of the temperature detection unit, and when the temperature in the electrical cabinet exceeds a predetermined temperature threshold, the microprocessor unit notifies the exhaust fan control unit Start the exhaust fan unit. The circuit control device of the electrical cabinet according to claim 2, further comprising: an operation panel unit, the operation panel unit is electrically connected to the microprocessor unit to control the start of the microprocessor unit, And control the microprocessor unit to enter an automatic mode or a manual mode, and when the microprocessor unit enters the automatic mode, drive the first current detection unit, the second current detection unit, and the temperature detection Unit to detect, when the microprocessor unit determines that the first current and the second current are not based on feedback from the first current detection unit, the second current detection unit, and the temperature detection unit When the first threshold is exceeded and the temperature in the electrical cabinet does not exceed the predetermined temperature threshold, the microprocessor unit notifies the exhaust fan control unit to turn off the exhaust fan unit, when the microprocessor unit The feedback of the first current detection unit, the second current detection unit, and the temperature detection unit determines that the first current or the second current exceeds the first threshold or the temperature in the electrical cabinet When the predetermined temperature threshold is exceeded, the microprocessor unit notifies the exhaust fan control unit to activate the exhaust fan unit, and when the microprocessor unit determines that the first current and the second current do not exceed the When the first threshold and the temperature in the electrical cabinet does not exceed the predetermined temperature threshold again, the microprocessor unit notifies the exhaust fan control unit to turn off the exhaust fan unit after a predetermined time, so that the exhaust fan unit remains Turn off after running for the predetermined time; when the microprocessor unit enters the manual mode, notify the exhaust fan control unit to activate the exhaust fan unit, and after the exhaust fan unit operates for more than a predetermined operating time, the micro The processor unit automatically switches into the automatic mode and drives the first current detection unit, the second current detection unit, and the temperature detection unit to detect when the microprocessor unit is based on the first current The feedback of the detection unit, the second current detection unit, and the temperature detection unit determines that the first current and the second current do not exceed the first threshold and the temperature in the electrical cabinet does not exceed all At the predetermined temperature threshold, the microprocessor unit notifies the exhaust fan control unit to turn off the exhaust fan unit. The circuit control device of the electrical cabinet according to claim 1, further comprising: a timing unit electrically connected to the microprocessor unit for timing and providing time to the microprocessor unit, When both the first current and the second current are lower than the first threshold, the microprocessor unit drives the timing unit to perform timing, and when the timing reaches a predetermined time, the microprocessor unit Notifying the exhaust fan control unit to activate the exhaust fan unit. The circuit control device of the electrical cabinet according to claim 1, further comprising: a temperature detection unit electrically connected to the microprocessor unit for detecting the temperature in the electrical cabinet The microprocessor unit determines the temperature in the electrical cabinet according to the feedback of the temperature detection unit, and when the temperature in the electrical cabinet exceeds a predetermined temperature threshold, the microprocessor unit notifies the exhaust fan control unit Starting the exhaust fan unit; wherein the temperature detecting unit is configured to start detecting the temperature in the electrical cabinet only when both the first current and the second current are lower than the first threshold. The circuit control device of an electrical cabinet according to claim 1, wherein the microprocessor unit is further configured to determine the maximum and minimum values of the first current through multiple feedbacks from the first current detection unit , When the maximum value and the minimum value of the first current differ by a predetermined multiple, the minimum value of the first current is multiplied by a predetermined coefficient as a first predetermined value, and the microprocessor unit also passes the The second current detection unit feedbacks multiple times to determine the maximum and minimum values of the second current. When the maximum and minimum values of the second current differ by a predetermined multiple, the minimum value of the second current is multiplied by The predetermined coefficient is used as a second predetermined value, and the magnitude of the first predetermined value and the second predetermined value are compared. When the first predetermined value is smaller than the second predetermined value, the first predetermined value Set to the first threshold, and when the first predetermined value is greater than the second predetermined value, set the second predetermined value to the first threshold. The circuit control device of the electrical cabinet according to claim 1, wherein the first current detection unit is a first current comparator that can be sleeved on the first power line, and the second current detection unit is A second current comparator that can be sleeved on the second power line. The circuit control device of the electrical cabinet according to claim 7, wherein the first power supply switch unit is a first relay switch, and the second power supply switch unit is a second relay switch. The circuit control device of the electrical cabinet according to claim 1, wherein the circuit control device of the electrical cabinet is provided on the electrical cabinet in the form of a control substrate. The circuit control device of the electrical cabinet according to claim 9, wherein the first power line, the first current detection unit, the first power supply switch unit, the second power line, the second The current detection unit and the second power supply switch unit are provided on a substrate.

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