Electronic star-sealing power supply detection circuit and elevator

Abstract

The embodiment of the utility model relates to the field of circuits, and provides an electronic star-sealing power supply detection circuit and an elevator, and the electronic star-sealing detection circuit comprises a power supply module which is used for providing a power supply signal; the electronic star-sealing power supply module is electrically connected with the power supply module and is used for receiving the power supply signal; the braking inversion module is electrically connected with the electronic star sealing power supply module, receives the detection signal and generates and outputs a braking signal; the detection module is electrically connected with the brake inversion module and is used for receiving the brake signal and generating and outputting a state signal, and the state signal represents whether the electronic star-sealing power supply module is in a normal state or not; wherein the state signal is transmitted to the control module, and when the electronic star-sealing power supply module is in a normal state, the control module controls the electronic star-sealing power supply module to continuously supply power to the braking inversion module. The reliability of the whole circuit can be improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present disclosure relates to the field of circuit, in particular to an electronic star-sealing power supply detection circuit and an elevator. BACKGROUND

[0002] The elevator refers to a permanent transportation device serving for several specific floors in a building, and the car thereof runs on at least two rigid tracks vertically to the horizontal plane or with an inclination angle of less than 15° to the plumb line.

[0003] The newly released type experiment specification of the elevator in 2022 compulsorily requires that the elevator system should be equipped with an electrical brake for the permanent magnet synchronous motor used, that is, the motor should adopt a stator short-circuit braking technology after the elevator operation instruction is stopped.

[0004] However, it is necessary to improve the reliability of the elevator operation at present. CONTENT OF THE INVENTION

[0005] The embodiment of the present disclosure provides an electronic star-sealing power supply detection circuit and an elevator, which can at least improve the reliability of the entire circuit.

[0006] According to some embodiments of the present disclosure, the embodiment of the present disclosure provides an electronic star-sealing power supply detection circuit, which comprises: a power supply module, the power supply module is used for providing a power supply signal; an electronic star-sealing power supply module, the electronic star-sealing power supply module is electrically connected with the power supply module and receives the power supply signal; a control module, the control module is electrically connected with the power supply module, receives the power supply signal, and generates a detection signal; a braking inverter module, the braking inverter module is electrically connected with the electronic star-sealing power supply module, receives the detection signal, generates and outputs a braking signal; and a detection module, the detection module is electrically connected with the braking inverter module, receives the braking signal, generates and outputs a state signal, the state signal represents whether the electronic star-sealing power supply module is in a normal state; wherein the state signal is transmitted to the control module, and the control module controls the electronic star-sealing power supply module to continuously provide the power supply to the braking inverter module when the electronic star-sealing power supply module is in the normal state.

[0007] In some embodiments, the electronic star-sealing power supply module comprises: a first power supply conversion chip, the first power supply conversion chip receives the power supply signal, generates and outputs a second power supply signal; and a second power supply conversion chip, the second power supply conversion chip is electrically connected with the first power supply conversion chip, receives the second power supply signal, generates and outputs a third power supply signal.

[0008] In some embodiments, the electronic star-enclosing power module further comprises a third power conversion chip, the third power conversion chip receives the third power signal, and the third power conversion chip is electrically connected with the brake inverter module to generate a voltage required by the brake inverter module.

[0009] In some embodiments, the electronic star-enclosing power module further comprises a first resistor, one end of the first resistor is electrically connected with the first power conversion chip, and the other end is electrically connected with the second power conversion chip.

[0010] In some embodiments, the detection module further comprises a test chip, the test chip receives the detection signal to generate and output a driving signal, and the brake inverter module generates the brake signal based on the driving signal; and a driving circuit, the driving circuit is electrically connected with the electronic star-enclosing power module, receives a power provided by the electronic star-enclosing power module, receives the brake signal, generates and outputs the state signal.

[0011] In some embodiments, the driving circuit comprises an optoelectronic coupler, a first input end of the optoelectronic coupler is electrically connected with the electronic star-enclosing power module to receive a power provided by the electronic star-enclosing power module, a second input end of the optoelectronic coupler receives the brake signal, a first output end of the optoelectronic coupler is grounded, a second output end of the optoelectronic coupler receives a working voltage, and the second output end also outputs the state signal.

[0012] In some embodiments, the driving circuit further comprises a first capacitor, one end of the first capacitor is electrically connected with the first input end, and the other end is electrically connected with the second input end; a second resistor, one end of the second resistor is electrically connected with the first input end, and the other end is electrically connected with the second input end; and a second capacitor, one end of the second capacitor is electrically connected with the first output end, and the other end is electrically connected with the second output end.

[0013] In some embodiments, the driving circuit further comprises a third resistor, one end of the third resistor receives the brake signal, and the other end is electrically connected with the second input end; a fourth resistor, one end of the fourth resistor receives a working voltage, and the other end is electrically connected with the second output end; and a fifth resistor, one end of the fifth resistor is electrically connected with the second output end, and the other end outputs the state signal.

[0014] In some embodiments, the brake inverter module comprises: an IGBT device, a base of the IGBT device receiving the driving signal, a collector of the IGBT device outputting the braking signal; a first diode, a positive electrode of the first diode being electrically connected with the collector of the IGBT device; a three-phase bridge circuit, an upper end of the three-phase bridge circuit being electrically connected with the collector of the IGBT device, a lower end of the three-phase bridge circuit being electrically connected with an emitter of the IGBT device.

[0015] According to some embodiments of the present disclosure, another aspect of the present disclosure further provides an elevator comprising the electronic star-enclosed power supply detection circuit as described above.

[0016] The technical solution provided by the present disclosure has at least the following advantages: the power module is used to provide a power signal for the electronic star-enclosed power supply detection circuit, the electronic star-enclosed power module is used to provide a power supply to the brake inverter module in an emergency of the elevator, so that the brake inverter module can also operate normally in the emergency of the elevator, and in order to avoid the electronic star-enclosed power module from being abnormal, the control module and the detection module are further provided, the detection module is used to detect whether the electronic star-enclosed power module is in a normal state, when the electronic star-enclosed power module is in the normal state, the control module is used to control the electronic star-enclosed power module to continuously provide the power supply to the brake inverter module, when the electronic star-enclosed power module is in an abnormal state, the electronic star-enclosed power module is not used to provide the power supply to the brake inverter module, so as to avoid that the brake inverter module receives an abnormal power signal, avoid that the whole circuit is abnormal, and avoid that the elevator receives an abnormal power signal and operates, and avoid that the elevator has a safety problem. BRIEF DESCRIPTION OF DRAWINGS

[0017] One or more embodiments are illustrated by way of example in the figures that are part of this disclosure and which are illustrative, but not limiting of the embodiments, unless otherwise specifically indicated, the drawings in which: in order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or in the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows, obviously, the drawings in the following description can only be some embodiments of the present disclosure, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0018] Figure 1 a circuit diagram of the electronic star-enclosed power supply detection circuit provided by an embodiment of the present disclosure;

[0019] Figure 2 a circuit diagram of the electronic star-enclosed power module provided by an embodiment of the present disclosure;

[0020] Figure 3 a circuit diagram of another part of the electronic star-enclosed power module provided by an embodiment of the present disclosure;

[0021] Figure 4 A part of a circuit diagram of a detection module provided for an embodiment of the present disclosure;

[0022] Figure 5 Another part of a circuit diagram of a detection module provided for an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] As known from the background, the current short-circuiting of the stator of the motor is realized by a group of inverter units of the frequency converter, i.e. electronic star sealing. When the brake of the elevator is released for rescue, the resistance generated by the star sealing of the permanent magnet synchronous motor is generally used to limit the rescue speed. When the brake is insufficient, the star sealing can provide some resistance to avoid the overspeed of the elevator car and prevent accidents. However, when a power failure occurs, the electronic star sealing also cannot work, which still has safety hazards. Therefore, the current elevator rescue system provides an emergency power supply for the electronic star sealing, aiming to solve the problem that the electronic star sealing cannot work in the power failure condition. However, if the output of the electronic star sealing power supply is abnormal and cannot normally seal the star, the elevator brake cannot complete the rescue, but instead, an accident may occur.

[0024] The embodiment of the present disclosure provides an electronic star sealing power supply detection circuit. A power supply module is used to provide a power supply signal for the power consumption of the electronic star sealing power supply detection circuit. An electronic star sealing power supply module is used to provide a power supply to a brake inverter module in an emergency of an elevator, so that the brake inverter module can also normally operate in the emergency of the elevator. In addition, to avoid the abnormality of the electronic star sealing power supply module, a control module and a detection module are also provided. The detection module is used to detect whether the electronic star sealing power supply module is in a normal state. When the electronic star sealing power supply module is in the normal state, the electronic star sealing power supply module is controlled by the control module to continuously provide the power supply to the brake inverter module. When the electronic star sealing power supply module is in an abnormal state, the brake inverter module is not provided with the power supply by the electronic star sealing power supply module, so as to avoid that the brake inverter module receives an abnormal power supply signal, avoid that the entire circuit is abnormal, and avoid that the elevator receives an abnormal power supply signal and operates, and avoid that the elevator has a safety problem.

[0025] Terms such as first or second can be used to describe various components, but these components are not limited by the above terms. The above terms are used to distinguish one component from another, for example, a first component can be referred to as a second component, and similarly, a second component can be referred to as a first component without departing from the scope of the concept according to the present disclosure.

[0026] Also, "connected" or "coupled" means that one component is directly or indirectly connected or coupled to another component, and "connection" or "coupling" means that one component is directly or indirectly connected or coupled to another component. The singular form "a," "an," and "the" can include plural references unless the context clearly dictates otherwise. Also, the term "comprises" or "comprising" as used in the specification indicates the presence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but does not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0027] Various modifications and changes can be applied to the embodiments of the examples of the concept, so that the embodiments of the examples of the concept will be illustrated in the accompanying drawings and described in the specification. However, the embodiments of the examples of the concept are not limited to the specific embodiments, but include all changes, equivalents, or alternatives included in the spirit and technical scope of the disclosure.

[0028] It should be understood that when an element is described as "coupled" or "connected" to another element, it can be directly coupled or connected to the other element, or can be coupled or connected to the other element through a third element. Conversely, it should be understood that when an element is referred to as being "directly connected" or "directly coupled" to another element, no other element is interposed therebetween. Other expressions describing the relationship between elements (i.e., "between" and "directly between" or "adjacent" and "directly adjacent") should be interpreted in the same manner.

[0029] The terms used in the specification are only used to describe specific examples of the embodiments, and are not intended to limit the disclosure. If there is no explicit opposite meaning in the context, the singular form can include the plural form. In the specification, it should be understood that the term "comprise" or "have" indicates the presence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but cannot preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0030] If not defined otherwise, all terms used herein (including technical terms or scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art. If a term is defined in the specification, it should be interpreted as having a meaning that is consistent with its meaning in the context of the relevant art, and not be interpreted in an ideal or overly formal sense unless clearly defined otherwise.

[0031] Descriptions of well-known components and processing techniques can be omitted so as not to unnecessarily obscure the embodiments of the disclosure.

[0032] Throughout the specification, same reference signs refer to same elements. Therefore, even if a reference sign is mentioned or described with reference to one drawing, it can be mentioned or described with reference to another drawing. In addition, even if a reference sign is not shown in one drawing, it can be mentioned or described with reference to another drawing.

[0033] In addition, the logic levels of signals can be different from or opposite to the described logic levels. For example, a signal described as having a logic "high" level can alternatively have a logic "low" level, and a signal described as having a logic "low" level can alternatively have a logic "high" level.

[0034] The embodiments of the present disclosure will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the embodiments of the present disclosure, many technical details are proposed in order to make the reader better understand the present disclosure. However, the technical solutions claimed by the present disclosure can be implemented even if there are no such technical details and various changes and modifications based on the following embodiments.

[0035] Reference Figures 1 to 5 , Figure 1 A circuit diagram of an electronic star-sealing power supply detection circuit according to an embodiment of the present disclosure; Figure 2 A circuit diagram of an electronic star-sealing power supply module according to an embodiment of the present disclosure; Figure 3 A circuit diagram of another part of an electronic star-sealing power supply module according to an embodiment of the present disclosure; Figure 4 A circuit diagram of a part of a detection module according to an embodiment of the present disclosure; Figure 5 A circuit diagram of another part of a detection module according to an embodiment of the present disclosure.

[0036] In some embodiments, the electronic star-sealing power supply detection circuit can include a power supply module 100, which is configured to provide a power supply signal Power.

[0037] The electronic star-sealing power supply detection circuit can further include an electronic star-sealing power supply module 101, which is electrically connected to the power supply module 100 and configured to receive the power supply signal Power.

[0038] The electronic star-sealing power supply detection circuit can further include a control module 102, which is electrically connected to the power supply module 100, configured to receive the power supply signal Power, and generate a detection signal det.

[0039] The electronic star-sealing power supply detection circuit can further include a brake inverter module 103, which is electrically connected to the electronic star-sealing power supply module 101, configured to receive the detection signal det, and generate and output a brake signal brake.

[0040] The electronic star-enclosed power supply detection circuit can further include a detection module 104 electrically connected with the brake inverter module 103, receiving a brake signal, generating and outputting a status signal status representing whether the electronic star-enclosed power supply module 101 is in a normal state, wherein the status signal status is transmitted to the control module 102, and the control module 102 controls the electronic star-enclosed power supply module 101 to continuously provide power supply to the brake inverter module 103 when the electronic star-enclosed power supply module 101 is in a normal state.

[0041] The electronic star-enclosed power supply detection circuit can further include a detection module 104 electrically connected with the brake inverter module 103, receiving a brake signal, generating and outputting a status signal status representing whether the electronic star-enclosed power supply module 101 is in a normal state, wherein the status signal status is transmitted to the control module 102, and the control module 102 controls the electronic star-enclosed power supply module 101 to continuously provide power supply to the brake inverter module 103 when the electronic star-enclosed power supply module 101 is in a normal state.

[0042] In some embodiments, the electronic star-enclosed power supply module 101 can be a backup power supply when the elevator power supply is problematic. When the electronic star-enclosed power supply module 101 provides power supply to the brake inverter module 103, the brake inverter module 103 can operate normally, thereby controlling the elevator to operate normally for a short time, facilitating the rescue of trapped passengers in the elevator.

[0043] In summary, when the electronic star-enclosed power supply module 101 needs to provide power supply, the electronic star-enclosed power supply module 101 is controlled to provide power supply to the brake inverter module 103 for a short time to control the components in the brake inverter module 103 to conduct. When the detection module detects that the brake inverter module 103 can conduct, it indicates that the electronic star-enclosed power supply module 101 can normally provide power supply, and the control module 102 is then controlled to continuously provide power supply to the brake inverter module 103, thereby controlling the elevator to move, facilitating the rescue of trapped personnel, and improving the safety of the rescue.

[0044] In some embodiments, the electronic star-sealing power module 101 can include a first power conversion chip 111, the first power conversion chip 111 receives a power signal Power, generates and outputs a second power signal Power_2; a second power conversion chip 121, the second power conversion chip 121 is electrically connected with the first power conversion chip 111, receives the second power signal Power_2, generates and outputs a third power signal Power_3. The voltage value of the power signal Power is converted to the required voltage value by the first power conversion chip 111 and the second power conversion chip 121, that is, converted to the third power signal Power_3, so that the brake inverter module 103 operates normally, and it is convenient for rescuing the passengers trapped in the elevator.

[0045] In some embodiments, the first power conversion chip 111 can include 4 pins, wherein the first pin can be electrically connected with the power module 100, the second pin can be electrically connected with a +5V power supply, the third pin can be grounded, and the fourth pin can be electrically connected with the second power conversion chip 121.

[0046] In some embodiments, the second power conversion chip 121 can include 4 pins, wherein the first pin can be electrically connected with the first power conversion chip 111, the signal output by the first power conversion chip 111 is taken as the enable signal of the second power conversion chip 121, the second pin can be electrically connected with a +5V power supply, the third pin can be grounded, and the fourth pin can output a +24V voltage.

[0047] In some embodiments, by setting the electronic star-sealing power module 101 to include the first power conversion chip 111 and the second power conversion chip 121, on the one hand, the magnitude of the power voltage value can be reduced each time, and on the other hand, the second power conversion chip 121 can be used to provide voltage to other modules in the elevator, thereby facilitating the wiring of the modules in the entire elevator.

[0048] In some embodiments, the electronic star-sealing power module further includes a first resistor R1, one end of the first resistor R1 is electrically connected with the first power conversion chip 111, and the other end is electrically connected with the second power conversion chip 121, by setting the first resistor R1, the stability of signal transmission between the first power conversion chip 111 and the second power conversion chip 121 can be improved.

[0049] In some embodiments, the electronic star-sealing power module 101 further includes a second diode D2, the positive electrode of the second diode D2 is connected with the output end of the second power conversion chip 121, and the negative electrode of the second diode D2 outputs a +24V voltage.

[0050] In some embodiments, the electronic star-sealing power module 101 further comprises a third power conversion chip 131, the third power conversion chip 131 receives a third power signal Power_3, and the third power conversion chip 131 is electrically connected with the brake inverter module 103 to generate a voltage required by the brake inverter module 103. By setting the electronic star-sealing power module 101 to include the third power conversion chip 131, the voltage required by the brake inverter module 103 can be generated, so that the brake inverter module 103 can be controlled to operate to control the elevator to run, thereby facilitating the rescue of passengers trapped in the elevator.

[0051] For example, if the voltage value of the power signal Power provided by the power module 100 is 3.3V, the first power conversion chip 111 can convert it into a second power signal Power_2 with a voltage value of 5V, and then the second power conversion chip 121 can convert it into a third power signal Power_3 with a voltage value of 24V. At this time, the third power conversion chip 131 can generate a voltage value of -9V to +15V to generate the voltage required by the brake inverter module 103.

[0052] In some embodiments, the third power conversion chip 131 can include four pins, wherein the first pin can receive the third power signal Power_3 output by the third power conversion chip 131, the second pin can be grounded, the third pin can output a voltage signal of +15V, and the fourth pin can output a voltage signal of -9V.

[0053] The first pin and the second pin can be electrically isolated from the third pin and the fourth pin, so that the entire electronic star-sealing power detection circuit can be facilitated to run, and the reliability of the entire electronic star-sealing power detection circuit can be improved.

[0054] It should be noted that the third pin can output a voltage signal of +15V, and the fourth pin can output a voltage signal of -9V, which is actually outputting a voltage signal of 24V for the third power conversion chip 131. The voltage signal of +15V to -9V is only for the output of the entire electronic star-sealing power detection circuit network, and the voltage signal of +15V to -9V is only for understanding, which is only an example and does not limit the output of the third power conversion chip 131.

[0055] In some embodiments, the electronic star-sealing power module 101 further comprises a first capacitor C1, one end of the first capacitor C1 can be electrically connected with the first pin, and the other end can be electrically connected with the second pin. By setting the first capacitor C1 as a filter capacitor, the reliability of the entire electronic star-sealing power detection circuit can be improved.

[0056] In some embodiments, the electronic star-sealing power supply module 101 further comprises a second capacitor C2, one end of the second capacitor C2 can be electrically connected with the third pin, and the other end can be electrically connected with the fourth pin. By setting the second capacitor C2 as a filter capacitor, the reliability of the entire electronic star-sealing power supply detection circuit can be increased.

[0057] In some embodiments, the detection module 104 can comprise a test chip 114, the test chip 114 receives the detection signal DBC, generates and outputs a driving signal NGB, and the braking inverter module 103 generates a braking signal BRR based on the driving signal NGB; a driving circuit 124, the driving circuit 124 is electrically connected with the electronic star-sealing power supply module 101, receives the power supply provided by the electronic star-sealing power supply module 101, and receives the braking signal BRR, generates and outputs a state signal DBS.

[0058] When the electronic star-sealing power supply module 101 needs to provide power supply, the control module 102 can generate a detection signal DBC, after the test chip 114 receives the detection signal DBC, a driving signal NGB is generated, when the braking inverter module 103 receives the driving signal NGB, a braking signal BRR is generated according to the driving signal NGB, then the braking signal BRR is transmitted to the driving circuit 124, and the driving circuit 124 generates a state signal DBS according to the braking signal, the state signal DBS represents whether the entire circuit is in a pass state, if the signal represented by the state signal DBS is in a pass state, it indicates that the electronic star-sealing power supply module 101 can operate normally, so that the electronic star-sealing power supply module 101 can be started to control the braking inverter module 103 to operate, so as to facilitate the rescue of the passengers trapped in the elevator.

[0059] For example, the driving signal NGB can control the start of a certain component in the braking inverter module 103, after the component is started, a braking signal BRR is generated accordingly, and the braking signal BRR is transmitted to the braking signal BRR, and a state signal DBS is generated, after the state signal DBS is generated, it indicates that the entire electronic star-sealing power supply detection circuit can pass, so it indicates that the electronic star-sealing power supply module 101 can continuously provide power supply to the braking inverter module 103.

[0060] In some embodiments, the detection module 104 can further comprise a sixth resistor R6, the sixth resistor R6 is connected in series on the port of the test chip 114 outputting the braking signal BRR; a third diode D3, the positive electrode of the third diode D3 receives the braking signal BRR output by the test chip 114, and the negative electrode outputs the braking signal BRR. Among them, the sixth resistor R6 is used to stabilize the braking signal BRR output by the test chip 114, and the third diode D3 is used to ensure the one-way output of the braking signal BRR, so as to improve the reliability of the entire electronic star-sealing power supply detection circuit.

[0061] In some embodiments, the detection module 104 can further include a seventh resistor R7 connected in series on the port outputting the drive signal NGB of the test chip 114. The seventh resistor R7 is used to stabilize the drive signal NGB output by the test chip 114, so as to improve the reliability of the entire electronic star-enclosing power supply detection circuit.

[0062] In some embodiments, the brake inverter module 103 can include an IGBT device T1, the base of the IGBT device T1 receives the drive signal NGB, and the collector of the IGBT device T1 outputs the brake signal BRR; a first diode D1, the anode of the first diode D1 is electrically connected to the collector of the IGBT device T1; and a three-phase bridge circuit 113, the upper end of the three-phase bridge circuit 113 is electrically connected to the collector of the IGBT device T1, and the lower end is electrically connected to the emitter of the IGBT device T1.

[0063] When the drive signal NGB is transmitted to the base of the IGBT device T1, the IGBT device T1 is turned on, and when the IGBT device T1 is turned on, the collector of the IGBT device T1 outputs the brake signal BRR. At this time, the detection module 104 receives the brake signal BRR, and further, the drive circuit 124 receives the brake signal BRR, controls the drive circuit 124 to be turned on, and then outputs the state signal DBS. When the state signal DBS can be generated, it indicates that the electronic star-enclosing power supply module 101 can provide power to the brake inverter module 103, and then the control module 102 can control the electronic star-enclosing power supply module 101 to continuously provide power to the brake inverter module 103.

[0064] For example, the base of the IGBT device T1 receives the drive signal NGB, turns on to output the brake signal BRR, and the brake signal BRR is pulled to the negative bus. The drive circuit 124 is turned on, the state signal DBS signal is generated and transmitted to the control module 102, the closed-loop detection is completed, and the control module 102 controls the electronic star-enclosing power supply module 101 to provide power to the brake inverter module 103. If the state signal DBS is wrong, a fault is reported, and the control module 102 controls the electronic star-enclosing power supply module 101 not to provide power to the brake inverter module 103.

[0065] For the first diode D1, the first diode D1 can ensure the one-way transmission of the brake signal BRR, and can improve the reliability of the electronic star-enclosing power supply detection circuit. For the three-phase bridge circuit 113, when braking is needed, the brake inverter module 103 opens the three-phase lower bridge, and makes the permanent magnet synchronous motor simultaneously short-circuited to the negative bus. The motor becomes a generator, uses the electromagnetic torque generated during the rotation of the traction sheave to make up for the mechanical torque generated by the inequality between the weight of the counterweight and the weight of the car, converts mechanical energy into electrical energy and consumes it in the form of heat in the closed-loop resistance, so as to realize the speed reduction of the elevator and keep constant low-speed operation.

[0066] It can be understood that the first diode D1 and the IGBT device T1 constitute a braking unit 123, and the third power signal Power_3 is further used to provide a driving power source for the braking unit 123.

[0067] In some embodiments, the driving circuit 124 can include an opto-coupler ISO1, a first input end of the opto-coupler ISO1 being electrically connected with the electronic star-enclosing power module 101 to receive a power source provided by the electronic star-enclosing power module 101, a second input end of the opto-coupler ISO1 receiving the braking signal BRR, a first output end of the opto-coupler ISO1 being grounded, a second output end receiving the working voltage, and the second output end further outputting the state signal DBS.

[0068] For the opto-coupler ISO1, when the opto-coupler ISO1 receives the braking signal BRR, the opto-coupler ISO1 is turned on, the state signal DBS is pulled low, and the state signal DBS is transmitted to the control module 102 to complete the closed-loop detection. If the signal transmitted to the control module 102 is wrong, it indicates that the electronic star-enclosing power module is not available, and the emergency rescue function cannot be used.

[0069] In some embodiments, the driving circuit 124 can further include a first capacitor C1, one end of the first capacitor C1 being electrically connected with the first input end and the other end being electrically connected with the second input end; a second resistor R2, one end of the second resistor R2 being electrically connected with the first input end and the other end being electrically connected with the second input end; and a second capacitor C2, one end of the second capacitor C2 being electrically connected with the first output end and the other end being electrically connected with the second output end. The first capacitor C1 and the second resistor R2 constitute an RC (capacitor-resistor) circuit, thereby playing a filtering role and improving the reliability of the input of the opto-coupler ISO1. The second capacitor C2 can also play a filtering role and improve the reliability of the output of the opto-coupler ISO1.

[0070] In some embodiments, the driving circuit 124 can further include a third resistor R3, one end of the third resistor R3 receiving the braking signal BRR and the other end being electrically connected with the second input end; a fourth resistor R4, one end of the fourth resistor R4 receiving the working voltage and the other end being electrically connected with the second output end; and a fifth resistor R5, one end of the fifth resistor R5 being electrically connected with the second output end and the other end outputting the state signal DBS. For the third resistor R3, the third resistor R3 can improve the reliability of the input of the braking signal BRR; for the fourth resistor R4, the fourth resistor R4 can improve the reliability of the input of the working voltage; and for the fifth resistor R5, the fifth resistor R5 can improve the reliability of the output of the state signal DBS.

[0071] In some embodiments, the driving circuit 124 can further include a fourth diode D4, the positive electrode of the fourth diode D4 is connected with the second input end of the opto-coupler ISO1, and the negative electrode receives the brake signal BRR. It can be understood that when the whole electronic star-enclosing power supply detection circuit is started, the brake signal BRR is pulled to the negative bus, and thus the negative electrode of the fourth diode D4 is arranged to receive the brake signal BRR, so that the brake signal BRR is transmitted to the second input end of the opto-coupler ISO1.

[0072] It can be understood that when the opto-coupler ISO1 is turned on, the state signal DBS is pulled low, and the signal fed back to the control module is a low-level signal; when the opto-coupler ISO1 is not turned on, the state signal DBS is affected by the working voltage received by the fourth resistor R4, and the signal fed back to the control module is a high-level signal. Through the state signal DBS, it can be fed back whether the whole circuit can be turned on, and then it can be judged whether the electronic star-enclosing power supply module 101 can continuously provide power supply to the brake inverter module 103.

[0073] The electronic star-enclosing power supply detection circuit provided in the embodiments of the present disclosure, the power supply module 100 is used to provide a power supply signal Power for the power consumption of the electronic star-enclosing power supply detection circuit, and the electronic star-enclosing power supply module 101 is used to provide power supply to the brake inverter module 103 in the emergency of the elevator, so that the brake inverter module 103 can also normally operate in the emergency of the elevator. In addition, in order to avoid the abnormality of the electronic star-enclosing power supply module 101, the control module 102 and the detection module 104 are further arranged, the detection module 104 is used to detect whether the electronic star-enclosing power supply module 101 is in a normal state, when the electronic star-enclosing power supply module 101 is in the normal state, the control module 102 is used to control the electronic star-enclosing power supply module 101 to continuously provide power supply to the brake inverter module 103, and when the electronic star-enclosing power supply module 101 is in an abnormal state, the electronic star-enclosing power supply module 101 does not provide power supply to the brake inverter module 103, so as to avoid that the brake inverter module 103 receives an abnormal power supply signal Power, avoid that the whole circuit appears abnormal, and avoid that the elevator receives an abnormal power supply signal and operates, and avoid that the elevator appears a safety problem.

[0074] Another embodiment of the present disclosure further provides an elevator comprising the electronic star-enclosing power supply detection circuit according to the above-mentioned embodiments or parts thereof. It should be noted that the same or corresponding parts of the above-mentioned embodiments can refer to the corresponding description of the above-mentioned embodiments, and will not be described hereinafter.

[0075] In the embodiments of the present disclosure, in the case of power failure, the system is switched to the electronic star-enclosing power supply module for power supply. When a passenger is trapped and needs to be rescued, the electronic star-enclosing power supply module state detection needs to be performed first. If the result is normal, the brake can be released for rescue, so as to speed up the whole rescue process.

[0076] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for implementing the present disclosure, and in actual applications, various changes can be made in form and details without departing from the spirit and scope of the embodiments of the present disclosure. Any person skilled in the art can make various modifications and changes without departing from the spirit and scope of the embodiments of the present disclosure, and therefore the protection scope of the embodiments of the present disclosure should be subject to the scope defined by the claims.

Claims

1. An electronic ballast power supply detection circuit, characterized by, The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module.

2. The electronic star-bucking power detection circuit of claim 1, wherein, The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module.

3. The electronic star-bucking power detection circuit of claim 2, wherein, The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module.

4. The electronic star-bucking power detection circuit of claim 2, wherein, The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module.

5. The electronic star power detection circuit of claim 1, wherein, The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module.

6. The electronic star power detection circuit of claim 5, wherein, The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module.

7. The electronic star-bucking power detection circuit of claim 6, wherein, The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module.

8. The electronic star-bucking power detection circuit of claim 6, wherein, The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. The application relates to an electronic star-enclosing power module. 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The application relates to an electronic star A fourth resistor, one end of the fourth resistor receives a working voltage, the other end is electrically connected with the second output end; A fifth resistor, one end of the fifth resistor is electrically connected with the second output end, the other end outputs the state signal.

9. The electronic star power detection circuit of claim 5, wherein, The brake inverter module comprises: An IGBT device, a base of the IGBT device receives the driving signal, a collector of the IGBT device outputs the brake signal; A first diode, a positive electrode of the first diode is electrically connected with the collector of the IGBT device; A three-phase bridge circuit, an upper end of the three-phase bridge circuit is electrically connected with the collector of the IGBT device, a lower end of the three-phase bridge circuit is electrically connected with an emitter of the IGBT device.

10. An elevator, characterized by An electronic star-enclosing power supply detection circuit comprising any one of claims 1 to 9.

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