Electrical equipment capable of supplying or not supplying power according to on or off state of control component
阅读说明:本技术 根据控制部件导通或阻断状态供电或不供电的电气设备 (Electrical equipment capable of supplying or not supplying power according to on or off state of control component ) 是由 B·勒克莱尔 D·马赛 于 2020-03-13 设计创作,主要内容包括:本发明涉及根据控制部件导通或阻断状态供电或不供电的电气设备。该电气设备将通过电缆被连接到用于家用或第三产业的电气设施的交流电源、负载和控制部件,使交流电源根据控制部件采取的导通和阻断的状态来对负载供电或不供电。该设备包括电压转换器(553,552),其输出被连接至操纵部件(544)以向其提供安全电压,操纵部件(544)被配置以当第一控制端子(522)和第二控制端子(520)在所述设备外部彼此电绝缘时在第一控制端子(522)和第二控制端子(520)之间施加安全电压,以及当第一控制端子(522)和第二控制端子(520)在所述设备外部被设置为相同电位时,不在它们之间施加安全电压。(The present invention relates to an electric apparatus that supplies or does not supply power depending on the on or off state of a control part. The electrical apparatus will be connected by means of cables to an alternating current power supply, to a load and to a control unit of an electrical installation for domestic or third industry, causing the alternating current power supply to supply or not supply power to the load depending on the state of conduction and blocking assumed by the control unit. The device comprises a voltage converter (553, 552) whose output is connected to a manipulation component (544) for providing it with a safety voltage, the manipulation component (544) being configured to apply the safety voltage between the first control terminal (522) and the second control terminal (520) when the first control terminal (522) and the second control terminal (520) are electrically insulated from each other outside the device, and not to apply the safety voltage between the first control terminal (522) and the second control terminal (520) when they are set to the same potential outside the device.)
1. An electrical apparatus, connected by means of cables to an alternating current power source, a load (524) and a control member (523) for household or third-industry electrical installations, for causing said alternating current power source to supply or not supply power to said load (524) depending on the conduction and blocking condition assumed by the control member (523), said apparatus (500) comprising:
-a reach terminal (514) configured to be connected to a pole of the alternating current power source;
-a departure terminal (521) configured to be connected to the load (524);
-a first control terminal (522) configured to be connected to said control component (523) and a second control terminal (520) configured to reach a reference potential, said first control terminal (522) and said second control terminal (520) being configured to be applied or not to be applied with a predetermined potential difference depending on said on and off state assumed by the control component (523);
-a manipulating member (544) connected to said first control terminal (522) and to said second control terminal (520), selectively assuming an active state and an inactive state depending on whether said predetermined potential difference is present between the first control terminal (522) and the second control terminal (520); and
-a switching member (557) connected to the arrival terminal (514) and the departure terminal (521), assuming a blocking state prohibiting passage of an electric current between the arrival terminal (514) and the departure terminal (521) or a conducting state allowing passage of an electric current between the arrival terminal (514) and the departure terminal (521), the switching member (557) being operated by the operating member (544) via an operating transmission configured such that switching between the blocking state and the conducting state of the switching member (557) takes place with switching between the inactive state and the active state of the operating member (544), or configured such that switching between the blocking state and the conducting state of the switching member (557) takes place only with switching from the inactive state to the active state;
the device is characterized by comprising a further arrival terminal (513) configured for connection to a further pole of the alternating current source and comprising a voltage converter (553, 552), which voltage converter (553, 552) is connected at its input to the arrival terminal (514) and the further arrival terminal (513) so as to be powered by the alternating current source and at its output to the handling member (544) to provide it with an alternating current active safety voltage of less than 50V or a direct current safety voltage of less than 120V, the handling member (544) being configured for applying the safety voltage between the first control terminal (522) and the second control terminal (520) when the first control terminal (522) and the second control terminal (520) are electrically insulated from each other outside the device and being configured for applying the safety voltage when the first control terminal (522) and the second control terminal (520) are arranged outside the device The safety voltage is not applied between the first control terminal (522) and the second control terminal (520) at the same potential, the manipulation component being in the inactive state when the first control terminal (522) and the second control terminal (520) are electrically insulated from each other outside the device and being in the active state when the first control terminal (522) and the second control terminal (520) are set to a same electrical potential outside the device, the manipulation component (544) comprising circuitry to provide a logic signal, the logic signal is formed by two predetermined voltage thresholds representing an active state and an inactive state respectively, the steering gear comprises a logic unit (550) connected to the steering member (544) and an electromagnetic actuator (556) connected to the switching member (557) of the logic unit (550).
2. An arrangement according to claim 1, characterized in that the voltage converter (552, 553) is configured such that the safety voltage source is direct current.
3. An apparatus according to claim 2, characterized in that the steering component (544) comprises a current limiting resistor (545), the current limiting resistor (545) being connected on one side to the output pole of the voltage converter (552, 553) and on the other side to the first control terminal (522).
4. A device according to claim 3, characterized in that the steering component (544) further comprises a bias resistor (546) arranged between the logic unit (550) and the side of the current limiting resistor (545) connected to the first control terminal (522).
5. An apparatus according to any one of claims 1 to 4, characterized in that the apparatus comprises, on the one hand, an input protection stage (547) arranged between the arrival terminal (514) and the other arrival terminal (513) and, on the other hand, the safety voltage converter (552, 553), the input protection stage (547) comprising an overcurrent protection component (549) and an overvoltage protection component (548).
6. An arrangement according to claim 5, characterized in that the over-current protection means is a positive coefficient thermistor (549) and the over-voltage protection means is a varistor (548).
7. An apparatus according to any one of claims 1 to 6, characterized in that the apparatus comprises an output protection stage (540) arranged between the first control terminal (522) and the second control terminal (520) on the one hand and the steering block (544) on the other hand, the output protection stage (540) comprising at least one over-current protection block (541, 542) and an over-voltage protection block (543).
8. A device according to claim 7, characterized in that said over-current protection means are positive coefficient thermistors (541, 542) and said over-voltage protection means are bidirectional Zener diodes (543).
9. The device according to any of claims 1 to 8, characterized in that it comprises a radio frequency communication means (554) connected to said logic unit (550).
10. An arrangement according to any of claims 1-9, characterized in that the switching member is a pair of contacts (557) and is part of an electromagnetic relay (551) comprising a coil (556) and a mechanical transmission (568) between the coil (556) and the pair of contacts (557).
11. A device according to any one of claims 1 to 10, characterized in that it comprises a current measuring means arranged between said arrival terminal (514) and said departure terminal (521) and connected to said logic unit (550).
12. An apparatus according to claim 11, characterized in that the current measuring means is a current divider (555).
13. A circuit comprising a device according to any one of claims 1 to 12, at least one control component (523) configured for controlling at least one load (524), and a circuit breaker (600), characterized in that:
-a first side of a control component (523) is connected to a first control terminal (522) of the device (500) and a second side thereof is connected to a second control terminal (520) of the device (500);
-a first side of a load (524) is connected to a departure terminal (521) of the device (500) and a second side thereof is connected to a terminal of a circuit breaker (600); and is
-the arrival terminal (514) and the further arrival terminal (513) of the device (500) are each connected to a terminal of a circuit breaker (600).
14. A circuit comprising the device according to any of claims 1 to 12, comprising at least one control component (523) configured for controlling at least one load (524), a first circuit breaker (600) and a second circuit breaker (400), characterized in that:
-a first side of a control component (523) is connected to a first control terminal (522) of the apparatus (500) and a second side thereof is connected to a terminal of a second circuit breaker (400);
-a first side of a load is connected to a departure terminal (521) of the device (500) and a second side thereof is connected to a terminal of a first circuit breaker (600); and is
-the arrival terminal (514) and the further arrival terminal (513) of the device (500) are each connected to a terminal of a first circuit breaker (600).
Technical Field
The present invention relates to an electric apparatus connected to an alternating current power source, a load and a control part through a cable for causing the power source to supply or not supply power to the load according to a conduction or blocking state of the control part.
Background
The prior art of contactors as shown in figures 1 to 4 of the accompanying drawings is known, in which:
fig. 1 is a perspective view of a known contactor from the right and front thereof;
FIG. 2 is a very simplified schematic diagram of the internal circuitry of a known contactor;
fig. 3 is a front view of the known contactor juxtaposed with a small ampere breaker, here 2A, itself juxtaposed with a higher ampere breaker, here 20A, on a support rail; and
fig. 4 is a schematic view of the apparatus shown in fig. 3 and cables connected between them and connected to the control part and the load.
The contact 100 shown in fig. 1 is in the form of a module, that is to say it has a generally parallelepiped shape with two main faces, a left face 101 and a right face 102 respectively, and sides extending from the main faces 101 and 102 to one another, namely a rear face 103, an upper face 104, a front face 105 and a bottom face 106, the rear face 103 having a recess 107 for mounting the contact 100 on a support rail, for example 112, standardized to an omega-shaped profile, of a protective housing, such as an electrical cabinet, an electrical box or an electrical box, in particular as can be seen in fig. 3. According to the modular form, the width of the contactor 100, which corresponds to the distance between the left face 101 and the right face 102, is a multiple of the standardized value, called "standard size", which is about 18 mm. The contactor 100 has a width of one standard size.
The front face 105 has, in a central position, a nose-like formation 108 with a key 109 which can be selectively placed in one of three gear positions, respectively an automatic operating position, a forced operating position and a stop position.
In the automatic operating position, the contactor 100 allows or disallows power to the load depending on whether the control component is on or off, respectively. In the forced operating gear, the contactor 100 is always supplying power to the load. At the stop, the contactor 100 is always disabled from supplying power to the load.
The upper side 104 of the contactor 100 has two input openings 110 and 111, enabling access to a
The bottom surface 106 has four input openings 115, 116, 117 and 118, enabling access to a
Each of the
The
The
The
The
As can be seen in fig. 2, the internal circuit of the contactor 100 comprises a
A first side of the
When a network voltage is present between
In the absence of a network voltage between
As shown in fig. 3 and according to the modular form, the contactor 100 is configured to belong to a row of modular devices arranged side by side, by being fixed from the rear on a horizontally arranged support rail 112.
The contactor 100 is configured to be connected to a
The
The
The
The wiring between the contactor 100 and the
The control means 123 may assume two stable states, respectively on and off. In the on-state, both sides thereof are electrically connected so that current can pass from one side to the other. In the blocking state, both sides thereof are electrically insulated from each other. Here, the control unit 123 is part of and controlled by the power distribution network connection assembly: it is in a conducting state during a period when the electric rate is reduced and in a blocking state during a period when the electric rate is rated.
The contactor 100 is designed such that, for example, the load 124 of the accumulating electric water heater is supplied with power during a period in which the power rate is reduced (the control part 123 is in a conductive state) and is not supplied with power during a period in which the power rate is rated (the control part 123 is in a blocking state).
The
The load 124 is connected on a first side to the
It can be seen that when the control 123 is in the conducting state, a network voltage appears between the
The
The
The prior art of remote control switches is also known from fig. 5 to 8 of the accompanying drawings, in which:
fig. 5 is a perspective view of the known remote control switch seen on the right side and in front of the remote control switch;
FIG. 6 is a very schematic diagram of the internal circuitry of a known remote switch;
fig. 7 is a front view of a known remote switch of a circuit breaker juxtaposed with a low amperage, here 2A, on a support rail, the low amperage circuit breaker itself being juxtaposed with a high amperage, here 20A, circuit breaker; and
fig. 8 is a schematic view of the devices shown in fig. 7 and the cables connecting them together and to the control components and loads.
Like the contactor 100, the
The
The rear face 203 has a recess 207 for mounting the
The front face 205 has, in a central position, a nose 208 with a key 209 which can be selectively placed in two shift positions, an operating position and a stop position respectively.
In the operating position, the
The
The
Each
The
The terminal 221 is designed to be connected to a first side of the load.
One of the outgoing terminals of the
The terminal 222 is designed to be connected to a first side of a control component, such as 223 (fig. 8). The second side of the
The
As can be seen in fig. 6, the internal circuit of the
A first side of the contact pair 227 is connected to the
In the absence of a network voltage between
When the pair of contacts 227 is in the conducting state, the terminal 221 is connected to the terminal 214 so that the terminal 221 is at the same potential as the terminal 214, designed to be connected to one of the outgoing terminals, here the poles of the phase, of the
When the contact pair 227 is in the blocking state, the terminal 221 is not connected to the terminal 214, so that the load connected to the terminal 221 is not supplied with power.
As shown in fig. 7 and according to the modular form, the
As described above, the
The
Wiring between the
The
The
The
It can be seen that when
The
The
It should be noted that the contactor 100 described above has two pairs of contacts, that is to say current paths to the load for either of the two poles of the network and each of these current paths includes a pair of contacts to allow current to pass or not.
There are also contactors with only one pair of contacts, where, just like the
Finally it should be pointed out that french patent application 2906075 describes an embodiment of a remote control switch whose operating mechanical actuator 228 can be modified by omitting the linkage and spring to convert the actuator 228 into the
Disclosure of Invention
The present invention is intended to provide the same kind of electric devices as the contactor 100 or the
The invention proposes for this purpose an electrical apparatus which is connected by cables to an alternating current power supply, to a load and to a control means for electrical apparatuses of a domestic or third industry, so that said alternating current power supply supplies or does not supply power to said load according to the conduction and blocking conditions assumed by the control means, said apparatus comprising:
-a reach terminal configured to be connected to one pole of the alternating current power source;
-a departure terminal configured to be connected to the load;
-a first control terminal configured to be connected to said control component and a second control terminal configured to be at a reference potential, said first and second control terminals being configured to have a predetermined potential difference applied or not applied thereto depending on the on and off state assumed by the control component;
-a manipulation member connected to said first control terminal and to said second control terminal, selectively in an active state and in an inactive state depending on whether said predetermined potential difference is present between the first control terminal and the second control terminal; and
-a switching member connected to the arrival terminal and the departure terminal, in a blocking state prohibiting passage of current between the arrival terminal and the departure terminal or in a conducting state allowing passage of current between the arrival terminal and the departure terminal, the switching member being controlled by the operating member via an operating actuator configured such that switching of the switching member between the blocking state and the conducting state takes place with switching of the operating member between the inactive state and the active state or configured such that switching of the switching member between the blocking state and the conducting state takes place only with switching from the inactive state to the active state;
the device is characterized in that it comprises a further arrival terminal configured to be connected to the other pole of said alternating current source, and a voltage converter connected at its input to said arrival terminal and to said further arrival terminal so as to be powered by said alternating current source, and connected at its output to said handling member so as to provide thereto a safety voltage being an effective alternating voltage of less than 50V or a direct voltage of less than 120V, said operating member being configured to apply said safety voltage between said first control terminal and said second control terminal when said first control terminal and said second control terminal are electrically insulated from each other outside the device and to not apply said safety voltage between the first control terminal and the second control terminal when the first control terminal and the second control terminal are at the same potential outside the device, said operating member being in said inactive state when said first control terminal and said second control terminal are electrically insulated from each other outside said device and being in said active state when said first control terminal and said second control terminal are set to the same electrical potential outside said device, said operating member comprising a circuit providing a logic signal consisting of two predetermined voltage thresholds representing the active state and the inactive state respectively, said operating actuator comprising a logic unit connected to said operating member and an electromagnetic actuator connected to said switching member of said logic unit.
The first control terminal (configured to be connected to the control component) and the second control terminal (configured to reach the reference potential) are thus configured to apply a safety voltage to them when they are electrically insulated from each other outside the device, that is to say when the control component is in the blocking state, and configured not to apply a safety voltage to them when they are set at the same potential outside the device, that is to say when the control component is in the conducting state.
Thus, unlike the known device, not the voltage of the alternating current source is applied to the control terminal (and therefore to the control member), but the safety voltage provided by the device thanks to the voltage converter present in the device, powered by the alternating current source, is applied to the control terminal.
It is known that voltage sources, such as safety voltage sources, that is to say with an ac effective voltage of less than 50V or a dc voltage of less than 120V, are safer for humans than ac power sources (typically 230V ac at 50Hz or 110V ac at 60 Hz) for domestic or third-generation electrical installations.
The device according to the invention thus provides improved personal safety in installations connected to two control terminals.
The present invention is based on the following observations: the predetermined potential difference may be supplied from the device (rather than externally as in known devices) provided that (i) both control terminals may be set to the same potential (i.e. short-circuited) outside the device and connected to the voltage source internally of the device, and provided that (ii) the conditions for the presence and absence of the predetermined potential difference between the two control terminals are reversed, that is to say rather than having the predetermined potential difference when the control means is in the conducting state and the predetermined potential difference when the control means is in the blocking state as in known devices, and conversely having the predetermined potential difference when the control means is in the blocking state and the predetermined potential difference when the control means is in the conducting state.
The invention is also based on the observation that each of the two requirements (i) and (ii) can be met in a relatively simple and convenient manner by means of suitable operating components and operating transmissions.
The requirement (i) can in fact be satisfied by a handling component configured to apply a safety voltage between two control terminals when they are electrically insulated from each other outside the device, and configured to no longer apply a safety voltage when they are short-circuited outside the device, which can be achieved for example by virtue of connecting in series a relatively high-value resistor in series on the current path between one of the poles of the safety voltage source and one of the control terminals: during an external short circuit between the two control terminals, the potential difference between the two sides of the resistor is a safe voltage, and since the resistor has a high value, the current flowing through the resistor and between the two terminals is minimal.
The requirement (ii) can in fact be satisfied by replacing the coil forming the operating member of the known device with a circuit providing a logic signal, in which case the two predetermined voltage thresholds represent an active state and an inactive state; and the mechanical actuators forming the manoeuvring actuators in the known device are replaced by electromagnetic actuators of a logic unit and switching member, the logic unit being connected to the circuit providing the logic signals and the actuators being connected to the logic unit.
According to an advantageous feature:
-the voltage converter is configured such that the safety voltage source is direct current;
the steering component comprises a current-limiting resistor connected on one side to the output pole of the voltage converter and on the other side to the first control terminal;
the steering component furthermore comprises a bias resistor which is arranged between the logic unit and the side of the current-limiting resistor connected to the first control terminal;
-the device comprises an input protection component arranged between the arrival terminal and the other arrival terminal on the one hand and the safety voltage converter on the other hand, the input protection terminal comprising an overcurrent protection component and an overvoltage protection component;
-said over-current protection means are positive coefficient thermistors and the over-voltage protection means are varistors;
-the device comprises an output protection component arranged between said first and second control terminals on the one hand and said handling component on the other hand, said output protection stage comprising at least one over-current protection component and over-voltage protection component;
-said over-current protection means are positive coefficient thermistors and said over-voltage protection means are bidirectional zener diodes;
-the device comprises a radio frequency communication component connected to the logic unit;
-the switching member is a pair of contacts and is part of an electromagnetic relay comprising a coil and a mechanical transmission between said coil and said pair of contacts;
-the device comprises a current measurement component arranged between the arrival terminal and the departure terminal and connected to the logic unit; and/or
The current measuring device is a shunt.
The invention, in a second aspect, also relates to a circuit comprising a device as described above, at least one control component configured to control at least one load, and a circuit breaker, characterized in that:
-a first side of a control component is connected to a first control terminal of the device and a second side thereof is connected to a second control terminal of the device;
-a first side of a load is connected to an outgoing terminal of the device and a second side is connected to a terminal of a circuit breaker; and is
-the arrival terminal and the further arrival terminal of the device are each connected to a terminal of a circuit breaker.
The invention, in a third aspect, also relates to a circuit comprising a device as described above, comprising at least one control component configured to control at least one load, a first circuit breaker and a second circuit breaker, characterized in that:
the first side of the control member is connected to the first control terminal and its second side is connected to the terminal of the second circuit breaker;
-a first side of a load is connected to an outgoing terminal of the device and a second side is connected to a terminal of a first circuit breaker; and
-the arrival terminal and the other arrival terminal of the device are each connected to a terminal of a first circuit breaker.
Drawings
The description of the present invention will now be continued by a detailed description of exemplary embodiments, given below by way of illustration and not limitation, with reference to the accompanying drawings, in which:
figures 1, 2, 3 and 4 show, as described above, a known contactor and a part of the electrical installation associated therewith;
figures 5, 6, 7 and 8 show, as described above, a portion of a known remote-controlled switch and the electrical installation associated therewith;
fig. 9 is a right and front perspective view of a first embodiment of an electrical device according to the present invention, the electrical device being a contactor;
fig. 10 is a schematic view of an internal circuit of a contactor according to the present invention;
fig. 11 is a schematic diagram of an input protection stage of the internal circuit of the contactor according to the present invention;
fig. 12 is a schematic view of a control unit and an output protection stage comprised by the contactor according to the present invention;
fig. 13 is a perspective view of a contactor electronic card according to the present invention as viewed from the left side of the apparatus;
fig. 14 is a perspective view of the contactor electronic card according to the present invention as seen from the right side of the apparatus;
fig. 15 is a schematic view of a contactor, circuit breaker, control components and load and cables connecting them to form an electrical circuit forming part of a domestic or third industrial electrical installation according to the present invention;
fig. 16 is similar to fig. 15, but for a second embodiment of the electrical device according to the invention, which is a remote switch; and is
Fig. 17 is similar to fig. 16, but for a variant in which the remote-controlled switch according to the invention replaces the known remote-controlled switch as part of the circuit shown in fig. 8, the remote-controlled switch according to the invention thus being associated with circuit breakers of two different amperages.
Detailed Description
The
A second embodiment of the electrical apparatus according to the invention, described later with the support of fig. 16 and 17, is a remote control switch, which is identical except for its operating gear, comprising software parts that are programmed differently, for example on the basis of a microcontroller: whereas in the contactor the operating actuator is programmed to cause switching of the switching member between the blocking state and the conducting state to take place with switching of the control member between the blocking state and the conducting state, in the remote control switch the operating actuator is programmed to cause switching of the switching member between the blocking state and the conducting state to take place only with switching of the control member from the blocking state to the conducting state.
For simplicity, in the following description, the
Like the contactor 100 and the
The
The rear face has a
The
In the automatic operating configuration, the
The
The
Each of the
The terminal 521 is designed to be connected to a first side of a load, such as 524, that is the same as the load 124, such as by a cable 525 (fig. 15). The second side of the
The
Here, terminal 513 is designed to be connected to the outgoing terminal of a circuit breaker located at a neutral pole, such as 600, by a cable, such as 527, and
The internal circuitry of the
The
The steering component 544, the radio
The electromagnetic actuator 556 is powered by the power source 553.
The
The input protection stage 547 and the output protection stage 540 will be described in detail later in support of fig. 11 and 12. At this stage, it will be noted that they are configured such that in normal operation they have no or in any case little influence on the current path between their input and output.
The
Thus, two inputs of the protection stage 547 are connected to the terminal 513 and the terminal 514, respectively, two inputs of the power source 553 are connected to one and the other outputs of the protection stage 547, two inputs of the power source 552 are connected to one and the other outputs of the power source 553, two inputs of the manipulation component 544 are connected to one and the other outputs of the power source 552, two inputs of the output stage 540 are connected to one and the other outputs of the manipulation component 544, respectively, the terminal 522 is connected to one output of the protection stage 540 and the terminal 520 is connected to the other output of the protection stage 540.
The reference potential of the internal circuitry of
Thus, as shown in fig. 10, the input protection stage 547, the power source 553, the power source 552, the manipulating part 544, and the output protection stage 540 are respectively configured such that their inputs and outputs corresponding to the same pole as the terminal 514 are at the same potential.
Thus, the potential of
Here, the output of the power supply 552 that is at the same potential as the
The steering component 544 is configured such that, in addition to the minimal effect that the output protection stage 540 may have, the terminal 520 should be at the same potential as the positive pole of the power supply 552 when the
Thus, the manipulation member 544 is configured to apply a voltage provided by the power source 552 to the
In practice, steering component 544 includes a current limiting resistor 545 disposed between its input and output, which are connected to the positive terminal of power supply 552 and terminal 522, respectively.
Since resistor 545 has a relatively high value, e.g., 10k Ω, during an external short circuit between
The steering component 544 further comprises a resistor 546 arranged between the output connected to the terminal 522 and a connection point connected to the
Two resistors 545 and 546 are used for the bias required to operate the
The potential present at the connection point of the logic unit connected to the manipulation component 544 is therefore the potential present at the terminal 522 or in any case very slightly different due to the protection stage 540 and the resistor 546.
Thus, compared to the reference potential of the circuitry inside the
The actuating member 544 thus supplies the
Thus, for example, as shown in fig. 15 to 17, if the
It will be observed that the manipulating member 544 then assumes the inactive state and the active state under exactly the same conditions as the
In the
Thus, the switching member 557 is actuated by the actuating member 544 by a part of the electronic actuation transmission such that switching between the blocking state and the conducting state of the switching member 557 takes place with switching between the non-activated state and the activated state of the actuating member 544.
The control component 544 furthermore comprises a capacitor 5400 arranged between its two outputs. The capacitor 5400 is useful for stability of the signal provided to the
The electromagnetic actuator 556 and the switching member 557 are here part of the
The contact pair 557 includes a fixed contact and a moving contact. The electromagnetic actuator 556 brings the contact pair 557 into a blocking state (moving contact away from fixed contact) or a conducting state (moving contact pressing against fixed contact).
A first side of the contact pair 557 is connected to the terminal 521. The second side of the contact pair is connected to the terminal 514 through a shunt 555.
More specifically, a first side of the shunt 555 is connected to the terminal 514 and a second side of the shunt 555 is connected to an input of the
As mentioned above, the electromagnetic actuator 556, here a coil, is powered by the power supply 553.
This supply takes place via a controlled electronic switch 539, which is implemented, for example, by a transistor and its bias resistor, the actuation of the electronic switch 539 being carried out by a
When the switch 539 is in the blocking state, the coil 556 is not powered and the switching member 557 is in the blocking state. When the switch 539 is in a conducting state, the coil 556 is powered and the switching component is in a conducting state.
The
The switching member 557 is thus controlled by the operating member 544 via a part of the electronic operating transmission comprising the
The
This allows the
The connection of the shunt 555 to the two dedicated conducting rails of the
In a variant not shown, only the side of the shunt opposite to the side connected to the terminal 514 is connected to the
The current strength determined by the
This allows the user to learn in real time, for example through a mobile application, the electrical consumption of the load associated with
The radio frequency communication means 554, connected to the
The
As shown in fig. 13 and 14, the
A shunt 555 is disposed on a first surface 561 of the
On the
The
Indeed, as mentioned above, the internal circuitry of the
The input protection stage 547 comprises an overcurrent protection component 549, here a positive coefficient thermistor, and an overvoltage protection component 548, here a varistor.
In the input protection stage 547, an overcurrent protection component 549 is provided between its input and its output, which are connected to the terminal 513 and a respective input of the power supply 553. An overvoltage protection component 548 is provided between the two outputs of the input protection stage 547.
The input protection stage 547 also includes a capacitor 5470 disposed in parallel with the component 548. Capacitor 5470 is used to filter out interference that may be present in the ac power source that is expected to be connected to
The resistance of thermistor 549 increases as a function of temperature, which allows the circuit to be protected from short circuits, particularly in the event of a failure of coil 556. The varistor 548 allows for absorption of a substantial voltage surge, which may protect the circuit, particularly from lightning strikes.
As described above, the internal circuitry of the
The output protection stage 540 comprises an over-voltage protection component 543, here a bipolar zener diode, an over-current protection component 541, here a positive coefficient thermistor, and a further over-current protection component 54, here a positive coefficient thermistor.
In the output protection stage 540, an overcurrent protection component 541 is provided between its output and input connected to the terminal 520 and the corresponding output of the manipulation component 544, respectively; an overcurrent protection component 542 is provided between its output and its input connected to the terminal 522 and the corresponding output of the operating component, respectively; and an overvoltage protection component 543 is provided between the two inputs of the output protection stage 540.
Output protection stage 540 is used to protect the internal circuitry of
Note that in this circuit the terminal 522 is connected to a first side of the
When
In a second embodiment, shown in fig. 16, the
As described above, this second embodiment is the same as the first embodiment except that the
We see that the circuit shown in fig. 16 is identical to the circuit shown in fig. 15, except that the
In the variant shown in fig. 17, the second embodiment of the
The second embodiment of the
In the circuit shown in fig. 17, the terminal 522 is connected to a first side of the
The terminal 521 is connected to a first side of the
We see that the circuit shown in fig. 17 is similar to the circuit shown in fig. 16, comprising one side of the
Since
In a variant not shown, this circuit is identical to that shown in fig. 17, except that the
In a variant not shown:
the shunt as in 555 is replaced by another current measuring component, such as a ammeter loop (core and winding) or a hall effect probe;
the reference pole is different from the phase of the alternating current network, for example the neutral pole;
the device as 500 does not comprise a radio frequency communication component as 554, and/or a current measurement component as current divider 555, and/or a configuration selection button as
the dc power supply is single-stage, for example with a single output of 5.5V, instead of having two stages as in the example 553 and 552;
the safety voltage that the device applies or does not apply to the control terminals like 520 and 522 is not direct current but alternating current; and more generally, the safe voltage is comprised between 0.5 and 120V for direct current, or the effective voltage is comprised between 0.5 and 50V for alternating current; and/or
The device as 500 takes a form other than modular.
Many other variations are possible depending on the circumstances, and it is to be reminded in this connection that the invention is not limited to the examples described and shown.
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