CONNECTED ELECTRICAL CABINET

Abstract

CONNECTED ELECTRICAL CABINET The invention relates to an electrical cabinet (100) comprising: a direct current electrical circuit; an alternating current electrical circuit; an electrical energy storage unit (10); a set of internal electrical equipment including a converter electrically connected to the electrical energy storage unit (10) and intended to convert a direct current produced by at least one solar panel into an alternating current; a first switch (A1); a second switch (A2); a third switch (A3); characterized in that the first switch (A1), the second switch (A2), and the third switch (A3) are capable of being operated independently so as to transition from their first states to their respective second states and vice versa independently. Figure for the abstract: [Fig. 1]

Description

Title of the invention: CONNECTED ELECTRICAL CABINET Scope of the invention

[0001] The field of the invention relates to the field of electrical energy distribution and storage systems.

[0002] In particular, the field of the invention relates to the field of electrical energy distribution systems, electrical energy storage, and electrical consumption management in a building.

[0003] More particularly, the field of the invention relates to the field of electrical cabinets for the power supply, management, and monitoring of electrical equipment in a dwelling, building, gymnasium, town hall, or any other type of building likely to include equipment requiring electrical power. Prior art

[0004] In the prior art, electrical panels, also known as electrical cabinets, or sometimes referred to in Anglo-Saxon literature as "home storage," are known. These electrical cabinets generally centralize electrical circuits and electronic components necessary for the transmission and distribution of electrical current in a building.

[0005] Such electrical cabinets may include means for storing electrical energy and / or means for intermittently supplying equipment from continuous or alternative energy sources, for example from a conversion of direct current obtained from a solar energy source into alternating current by a DC / AC converter.

[0006] This is, for example, the case of application CN112615273, which describes an energy-saving distribution cabinet comprising solar panels. The distribution cabinet includes batteries and a converter that converts the direct current produced by the solar panels into alternating current to charge the batteries and power a set of equipment in a building.

[0007] One drawback of existing electrical cabinets is that they do not allow for sufficient optimization of energy consumption over time. This leads to additional costs on consumers' energy bills.

[0008] Another drawback is that existing electrical cabinets do not allow for periodic or one-off maintenance without interrupting the electrical power supply to the equipment to which the cabinet is connected.

[0009] Another disadvantage of prior art electrical cabinets is that their ins Installation can prove complex, and depends in particular on the type of electrical installation to which the cabinet is connected.

[0010] Another disadvantage of prior art electrical cabinets is that they do not allow continuity of electricity production and storage even in the event of power outages to external electrical equipment.

[0011] One objective of the invention is to limit at least one of the aforementioned drawbacks.

[0012] In particular, the invention makes it possible to ensure continuity in the power supply to the electrical equipment of a building even in the event of a power outage on the electrical network or in the event of maintenance on equipment in an AC electrical circuit of the electrical cabinet.

[0013] In particular, the invention makes it possible to ensure continuity of electrical production and storage of electrical energy even in the event of isolation of an alternating current electrical circuit comprising electrical equipment of a building (for example to allow maintenance intervention on said equipment).

[0014] In particular, the invention is adapted to be connected to the entirety of a pre-existing electrical panel of a building, regardless of the size of the electrical panel and regardless of the type of electrical panel. Summary of the invention

[0015] In this respect, the invention relates to an electrical cabinet comprising: • A direct current electrical circuit; • An alternating current electrical circuit; • At least one electrical energy storage device; • A set of internal electrical equipment including: • a DC / AC converter electrically connected to said electrical energy storage unit and intended to ensure the conversion of a direct current produced by at least one solar panel into an alternating current; • a first switch capable of being in a first closed state in which it electrically connects the internal electrical equipment to the direct current electrical circuit, and in a second open state in which it electrically isolates the internal electrical equipment from the direct current electrical circuit; • a second switch capable of being in a first closed state in which it electrically connects the alternating current electrical circuit to a set of external equipment, and capable of being in a second open state in which it electrically isolates the alternating current electrical circuit from the set of external equipment; • a third switch capable of being in a first state in which it electrically connects the alternating current electrical circuit to the electrical energy accumulator and to an external electrical network, and in a second state in which it electrically connects the alternating current electrical circuit only to the external electrical network,

[0016] the first switch, the second switch and the third switch being capable of being operated independently of each other by a user so as to move from their respective first states to their respective second states and vice versa independently.

[0017] One advantage is to allow an interruption of the power supply to a set of equipment in a building for the implementation of maintenance operations on this equipment on the one hand, while continuing to ensure the production and storage of electrical energy on the other hand.

[0018] Another advantage is to allow continuity of electrical power supply to equipment in a building while allowing maintenance operations to be carried out on the electrical cabinet and while ensuring continuity of electrical energy storage in the battery.

[0019] Another advantage is to allow the implementation of maintenance operations on the solar panels and on the DC electrical circuit while ensuring continuity in the supply of electrical power to the building equipment.

[0020] According to one embodiment, the electrical cabinet includes a fourth switch capable of being in a first state in which it electrically connects the output of the AC electrical circuit to the set of external equipment and in which it electrically connects the DC electrical circuit to the electrical energy accumulator, and capable of being in a second state in which it isolates the DC electrical circuit from the electrical energy accumulator and in which it isolates the AC electrical circuit from the set of external equipment.

[0021] One advantage is to allow the implementation of an emergency shutdown of the electrical power supply to all the building's equipment in a simple manner, for example for the implementation of maintenance operations on said equipment.

[0022] According to one embodiment, the electrical cabinet includes a computer configured to process: • data on the electricity consumption of at least one of the external devices, • data on the electrical current production of said at least one solar panel, • data relating to a quantity of electrical energy stored in the electrical energy accumulator over a predefined time interval. • Data relating to the purchase and resale of electricity on the electricity grid

[0023] One advantage is to allow monitoring of the electrical consumption of building equipment, for example to detect possible malfunctions.

[0024] According to one embodiment, the internal electrical equipment includes at least one temperature sensor and at least one cooling element, said temperature sensor being configured to transmit signals including temperature measurements to the computer at predefined time intervals, said computer being configured to: • compare at least one temperature value from a signal transmitted by the temperature sensor with a predefined threshold value; • generate and issue an actuation command for the cooling unit when the temperature value exceeds the predefined threshold value.

[0025] One advantage is to optimize overall energy efficiency by reducing Joule effect losses at the electrical and electronic components of the cabinet.

[0026] According to one embodiment, the electrical cabinet includes a communication interface capable of: • transmit initial data messages via a wireless or wired connection to at least one remote device, • receive a second data message issued by the remote equipment.

[0027] One advantage is to allow the transmission of consumption data and the reception of data frames, such as data frames including instructions to be transmitted to the computer, for example in response to the transmitted consumption data.

[0028]

[0029]

[0030] According to one embodiment, the second data message includes an actuation signal for the first switch, the second switch and / or the third switch, the communication interface being configured to, when it receives the second data message: • decode said second data message to extract the control signal; • transmit the control signal to the computer; and in which the computer is configured to: • actuate the first switch, the second switch and / or the third switch according to the actuation signal. One advantage is that it allows for remote control of the switches, for example by an administrator.

[0031] According to one embodiment, the first data messages include: • power consumption data from external equipment and / or, • data relating to the operating status of electrical equipment internal or external equipment.

[0032] According to one embodiment, the electrical cabinet comprises: • two lateral walls, each comprising an internal face; • a first mechanical support comprising two rails, each rail being fixed to the inner face of said side walls, each rail supporting a portion of the electrical energy accumulator and the two rails being positioned opposite each other.

[0033] According to one embodiment, the electrical cabinet includes a bottom wall comprising a second mechanical support comprising a plurality of first fixing points cooperating mechanically with the internal electrical equipment.

[0034] One advantage is to allow an optimized arrangement of the electrical and electronic components of the cabinet.

[0035] According to one embodiment, the electrical cabinet comprises a plurality of third mechanical supports extending in a direction substantially parallel to said second mechanical support and comprising second attachment points adapted to cooperate with at least one electrical equipment and / or with said second mechanical support.

[0036] According to one embodiment, the electrical cabinet includes a user interface connected to the computer, said user interface including a screen and said computer being configured to generate at least one command to display on the screen • data on the energy consumption of the electrical storage device, • data on energy production from at least one solar panel, • data from temperature measurements from the temperature sensor. • a settings menu for the electrical cabinet. Brief description of the figures

[0037] Other features and advantages of the invention will become apparent from the following detailed description, with reference to the accompanying figures which illustrate:

[0038] [Fig-1]: A front view of the electrical cabinet according to an embodiment in which includes four switches.

[0039] [Fig.2]: A rear view of the electrical cabinet in one embodiment in which includes a plurality of fixing points for securing internal electrical equipment in the electrical cabinet.

[0040] [Fig.3]: A side view of the electrical cabinet according to an embodiment in which includes a plurality of internal electrical equipment and electrical energy accumulators supported by a plurality of supports.

[0041] [Fig.4]: A schematic representation of the electrical cabinet in a mode of implementation in which the electrical cabinet includes a communication interface for exchanging data messages with a remote data server.

[0042] [Fig. 5]: An enlarged view of a user interface of the electrical cabinet in a embodiment in which the user interface includes a touch screen.

[0043] [Fig.6]: A view of the electrical cabinet when installed within a building and electrically connected to a set of external electrical equipment via an alternating current electrical circuit. Description of the invention Definitions

[0044] In the following description, we define: - An electrical cabinet 100 to refer to a box comprising a set of electrical and electronic components connected electrically together, and intended to ensure the routing and distribution of electrical current to various equipment external to the electrical cabinet 100, for example household appliances installed in a building. - A set of internal electrical equipment 120 refers to electrical and electronic components connected together within the electrical cabinet 100 and through which an electric current flows. Internal electrical equipment 120 includes, for example, but is not limited to, circuit breakers, switches, converters, regulators, cables, and surge protectors. - A set of external equipment 200 to refer to equipment located in a building and electrically powered by alternating current, either from an output of the electrical cabinet 100. This includes, for example, but not limited to, refrigerators, ovens, washing machines, electric radiators or induction hobs. - Switches to refer to control devices whose actuation causes an opening or closing of a given electrical circuit, for example a direct current electrical circuit or an alternating current electrical circuit. - A DC / AC converter refers to a converter that converts converting a direct current voltage to an alternating current voltage.

[0045] This description is based on various embodiments. Several variant embodiments are described for each of these embodiments. These variants can be applied interchangeably to each of these embodiments. Thus, the features described for one embodiment are directly applicable to another embodiment. The invention protects the various combinations of features described through these embodiments.

[0046] Figure 1 illustrates an example of an electrical cabinet 100 according to an embodiment of the invention in which it comprises four switches A2, A3, and A4. DC circuit

[0047] The electrical cabinet 100 includes a direct current electrical circuit. A "direct current electrical circuit" is understood to be an electrical circuit in which the voltage and current sources deliver constant signals.

[0048] The direct current electrical circuit allows the circulation of a direct electric current produced by one or more solar panels, for example solar panels installed on the roof of a building in which the electrical cabinet 100 is installed.

[0049] Solar panels comprise photovoltaic cells electrically connected in series and / or parallel, which capture a portion of solar radiation and convert it, by means of the photovoltaic cells, into direct current flowing in the direct current electrical circuit. Electrical energy storage

[0050] The electrical cabinet 100 includes an electrical energy storage unit 10. The electrical energy storage unit 10 allows for the storage of electrical energy, for example, a direct current generated by one or more solar panels, and circulating in the direct current electrical circuit. The electrical energy storage unit 10 is, for example, a battery, for example, a lithium-ion battery. In another example, the battery 10 is a solid-state battery. This is, for example, a completely solid-state silicon battery. However, the invention is not limited to the aforementioned battery technologies. Any type of storage unit or any other suitable means of electrical energy storage can be implemented within the scope of the invention.

[0051] According to a preferred embodiment, the electrical cabinet 100 comprises a plurality of electrical energy storage units 10. This is, for example, an arrangement of several batteries connected in parallel. According to another example, it is an arrangement of several batteries connected in series. In both cases, the batteries 10 are electrically connected to each other by means of electrical cables in through which a direct current flows.

[0052] According to one embodiment, several electrical energy storage units 10 are connected to each other by means of a plurality of electrical cables. The electrical cables are, for example, duplicated compared to a standard assembly. An assembly with a greater number of electrical cables for connecting the batteries to each other is also possible within the scope of the invention.

[0053] One advantage of multiplying the number of cables electrically connecting the batteries together is to minimize energy losses during the passage of electric current through the cables, and therefore to maximize the electrical energy stored in the batteries.

[0054] Another advantage is to optimize the electrical efficiency of the electrical cabinet.

[0055] According to one embodiment, the electrical cabinet 100 comprises at least one support. The support allows the electrical energy storage unit 10 to be supported. The electrical cabinet 100 can also include a plurality of supports to support a plurality of electrical energy storage units 10. The supports are, for example, arranged parallel to each other. The supports can be in the form of racks. The supports are, for example, arranged in a lower portion of the electrical cabinet 100.

[0056] One advantage is to optimize the compactness of the electrical cabinet by optimizing the space occupied by the batteries in the electrical cabinet 100, and freeing up space for other components. AC circuit

[0057] The electrical cabinet 100 includes an alternating current electrical circuit. An "alternating current electrical circuit" is understood to mean an electrical circuit supplied by an alternating voltage or current source.

[0058] The alternating current electrical circuit allows the flow of an electric current alternating current to power equipment external to the electrical cabinet 100, such as, for example, a set of external equipment 200 that requires power from an alternating current source. This equipment includes, for example, electrical equipment in a building, such as household appliances like ovens, microwaves, or washing machines, or any other equipment that may be present in a building and requires power from an alternating current source, for example, electric heaters.

[0059] The electrical circuit includes, for example, an input connected to an electrical network. The alternating current electrical circuit may also include an input connected to an output of the direct current electrical circuit, for example, the output of a DC-to-AC voltage converter. Electrical equipment in the cabinet

[0060] The electrical cabinet 100 includes a set of internal electrical equipment 120. The term "a set of internal electrical equipment 120" means electrical equipment and / or electronic components connected together in the electrical cabinet 100, which enable the transmission and distribution of electrical current to equipment outside the electrical cabinet 100, such as external equipment 200, which are, for example, household appliances in a building, or electric heating equipment.

[0061] The internal electrical equipment 120 is, for example, electrically connected to each other in a series configuration. However, some equipment may be connected to each other in a parallel configuration, for example, a plurality of converters electrically connected in parallel.

[0062] The internal electrical equipment assembly 120 includes a DC / AC converter 30 for converting direct current into alternating current. The DC / AC converter 30 is connected to at least one electrical energy storage unit 10. The DC / AC converter is, for example, electrically connected to an input point of the alternating current electrical circuit.

[0063] The DC / AC converter 30 is intended to ensure the conversion of a direct electric current stored in at least one electrical energy accumulator 10 into an alternating electric current that can flow in the alternating current electrical circuit to power at least one external equipment 200.

[0064] The DC / AC converter 30 is, for example, a converter / charger type converter. It is, for example, a converter / charger comprising a converter with an apparent electrical power rating between 3 kVA and 5 kVA. The converter / charger includes, for example, an automatic transfer switch or "ATS". In this case, the electrical cabinet 100 is, for example, connected to a generator set. One advantage is that it allows for an uninterrupted power supply to the most sensitive electrical equipment.

[0065] The maximum power of the converter is, for example, between 3700W and 4000W depending on the temperature. The input voltage range of the charger is, for example, between 50V and 400V, and the charging voltage is, for example, between 47V and 52V.

[0066] According to one embodiment, the internal electrical equipment assembly 120 includes a DC / DC charge controller. The DC / DC charge controller is positioned between the solar panels and the electrical energy storage unit 10 in the DC electrical circuit. It is, for example, a solar charge controller. The solar charge controller includes, for example, an integrated maximum power point search function, also referred to in the literature as This is known in English as "maximum point tracking," or by the acronym "MPPT." This function allows for the continuous measurement of the maximum power that the panels can deliver, as well as the maximum power that the battery can receive, in order to optimize the voltage and achieve the most efficient performance.

[0067] According to one embodiment, the electrical cabinet 100 is connected to a generator set, and the internal electrical equipment 120 includes a converter / charger. A "converter / charger" is defined as equipment capable of performing both a voltage converter function and a battery charger function. For example, it could be a DC / AC converter / charger comprising a converter with an apparent electrical power rating between 3 kVA and 5 kVA and a battery charger delivering a current between 50 A and 70 A. The converter / charger may include, for example, an automatic transfer switch (ATS). One advantage is that it allows for an uninterrupted power supply to the most sensitive electrical equipment.

[0068] The maximum power of the regulator-charger is, for example, between 3400W and 4000W depending on the temperature. The charging voltage is, for example, between 47V and 52V.

[0069] According to one embodiment, the internal electrical equipment assembly 120 includes a DC voltage regulator. This is, for example, a solar charge controller. In various examples, the charge controller may include a shunt-type charge controller, a series-type charge controller, or an MPPT (Maximum Power Point Tracker) type charge controller.

[0070] One advantage is to avoid damaging the batteries by adjusting the solar energy production from the photovoltaic panels to the battery while avoiding untimely overcharging or excessively deep discharges.

[0071] According to one embodiment, the internal electrical equipment assembly 120 includes at least one cooling element. The cooling elements include, for example, one or more fans. The cooling elements are, for example, arranged on a support in the electrical cabinet 100, for example, a tray. The cooling elements are, for example, positioned in the electrical cabinet 100 in such an orientation that they are capable of cooling, for example by convection, other internal electrical equipment 120 of the electrical cabinet 100 that may heat up due to the Joule effect.

[0072] One advantage is to improve the overall energy performance of the system by reducing losses due to temperature increases in electrical and electronic components.

[0073] According to one embodiment, the electrical cabinet 100 includes at least one indicator light. This may be, for example, an indicator light to show the presence of the electrical network. For example, the indicator light is in a "lit" state when no problem is detected on the electrical network, and in a "off" state when a problem is detected on the electrical network, or vice versa. The indicator light may also be configured to display different colors depending on the state of the electrical network.

[0074] According to one embodiment, the electrical cabinet 100 is configured to be connected according to a three-phase arrangement and includes an indicator light for each phase. Electrical cabinet switches

[0075] The electrical cabinet includes a first switch Ab. The first switch A i is capable of being in two states: - A first state in which it connects the direct current electrical circuit to the internal electrical equipment 120 present in the electrical cabinet 100 - A second state in which it isolates the internal electrical equipment 120 located in the electrical cabinet 100 from the DC electrical circuit.

[0076] The Ai switch offers several advantages. A first advantage is that the ability to isolate the internal electrical equipment 120 from the DC electrical circuit allows for safe maintenance operations to be carried out on equipment in the DC electrical circuit, for example, on one or more solar panels. Another advantage is that these maintenance operations can be carried out without interrupting the power supply to the external equipment 200.Indeed, in the case where the internal electrical equipment 120 of the electrical cabinet is isolated from the direct current electrical circuit, the external equipment 200 is powered either directly by the electrical network, or totally or partially by the electrical energy from the production of one or more solar panels stored in one or more electrical energy accumulators 10 and circulating in the alternating current electrical circuit.

[0077] Another advantage of the Ai switch is that it allows the DC circuit to be isolated from the internal electrical equipment without shutting down the DC / DC charger regulator.

[0078] The electrical cabinet includes a second switch A2. The second switch A2 is capable of being in two states: - A first closed state in which it electrically connects an output of the AC circuit to the set of external equipment 200 - A second open state in which it electrically isolates the circuit output alternating current electrical system of the set of external equipment 200.

[0079] One advantage of the second switch A2 is that, when it is in the second open state, it is possible to work on one or more external devices 200 without encountering an electrical hazard. Another advantage is that, when the second switch A2 is in the second open state, it is still possible to generate electricity from one or more solar panels and store it in one or more electrical energy storage units 10. Thus, maintenance operations can be carried out while continuing to generate and store electricity.

[0080] The third switch A3 is capable of being in two states: - A first state in which it electrically connects the alternating current electrical circuit to the electrical energy accumulator 10 and to an external electrical network; - A second state in which it electrically connects the alternating current electrical circuit only to the external electricity network;

[0081] Thus, the third switch, when in its first state, allows the AC circuit connected to the external equipment to be supplied with power directly from the current stored in the electrical energy storage unit, and also allows this supply to be supplemented by a power supply from the electrical grid. When the second switch is in its second state, it allows the AC circuit to be supplied with power only from the electrical grid. In other words, in this configuration, the "electrical" cabinet is disconnected from the grid, and the AC resulting from the conversion of the direct current from the solar panels is not used to power the AC circuit.

[0082] One advantage is to allow the implementation of a maintenance mode on the electrical cabinet while ensuring continuity in the supply of electrical equipment external to the cabinet, such as domestic equipment in the building in which the cabinet is installed.

[0083] According to one embodiment, the electrical cabinet 100 includes a fourth switch A4. The fourth switch A4 is configured to switch from a first state to a second state in which it isolates the external equipment 200 from the AC circuit and in which it isolates all the internal electrical equipment 120 from the DC circuit. In other words, activating the fourth switch A4 to switch it from a first state to a second state allows for an emergency shutdown of the power supply to all the external equipment 200 and the electrical energy storage unit 10 of the electrical cabinet 100 simultaneously.

[0084] According to one embodiment, the computer 101 includes an actuation element configured to actuate the first switch Ai, the second switch A2, the third switch A3, and / or the fourth switch A4. This is made possible, for example, when the computer 101 receives an actuation signal. The actuation signal is, for example, transmitted to the computer 101 via the communication interface 102. This actuation signal originates, for example, from a second data message MES2 transmitted to the communication interface 102 by the remote equipment Eb.

[0085] According to one embodiment, the calculator 101 is configured to process data on the electrical current production of said at least one solar panel. This includes, for example, values ​​of electrical energy produced as a function of various parameters, such as meteorological parameters (e.g., sunshine) or temporal parameters (such as a period of exposure). Three-phase mode

[0086] According to one embodiment, the electrical cabinet 100 is configured to be connected according to a three-phase arrangement.

[0087] One advantage of the three-phase mode is to allow the supply and distribution of electrical energy in a building including equipment requiring high electrical power.

[0088] Another advantage is to reduce losses during the transmission of electricity over the line.

[0089] The three-phase assembly includes, for example, three phase conductors.

[0090] According to another example, the three-phase assembly comprises three phase conductors and one neutral conductor.

[0091] The neutral conductor offers a particular advantage for unbalanced electrical installations (i.e., where the current flowing in each of the three phases is different and varies over time), by dissipating residual currents, so as to maintain the nominal distribution voltage in the three phase conductors. This is the case, for example, in buildings or high-power domestic installations.

[0092] Another advantage of the neutral conductor in the three-phase assembly is to avoid an excessive overvoltage in the circuits connected to external equipment 200 which could result in damage to said equipment and present an electrical hazard to users. Walls and fixing brackets

[0093] The electrical cabinet 100 includes walls delimiting an internal volume in which the electrical circuits and internal electrical equipment are arranged. This internal volume is, for example, delimited by walls, for example a wall of bottom, side walls and a front wall.

[0094] According to one embodiment, the electrical cabinet 100 comprises at least one first mechanical support. The first mechanical support is configured to support at least one electrical energy storage unit 10. The electrical cabinet 100 may also comprise a plurality of first mechanical supports to support a plurality of electrical energy storage units 10. The first mechanical supports are, for example, in the form of racks. The first mechanical supports are, for example, mounted one above the other, for example in a lower portion of the electrical cabinet 100. Such a configuration advantageously optimizes the compactness of the electrical cabinet 100.

[0095] According to one embodiment, the electrical cabinet 100 comprises two side walls, each having an inner face on each of which at least one rail is fixed. The two rails are, for example, positioned opposite each other. The two rails are, for example, configured to support at least a portion of the electrical energy storage unit 10. According to another example, the two rails are configured to support at least one first mechanical support.

[0096] According to one embodiment, the electrical cabinet 100 comprises a back panel. The back panel includes, for example, a second mechanical support comprising a plurality of first fixing points 121. The internal electrical components 120 each cooperate mechanically, for example, with a plurality of first fixing points 121. The mechanical cooperation 120 between the internal electrical components 120 and the first fixing points 121 is achieved, for example, by means of a screw. However, the invention is not limited to this single fixing means, and any other suitable fixing means can be used within the scope of the invention, for example, a nail, a mechanical anchor, or even glue.

[0097] Advantageously, the second mounting points 121 are distributed on the base plate so as to allow for an optimized arrangement of the internal electrical equipment 120 within the electrical cabinet. An "optimized arrangement" is understood to mean an arrangement of the internal electrical equipment 120 and the various electrical cables (allowing the flow of electric current in the direct current circuit and in the alternating current circuit) that optimizes the overall compactness of the electrical cabinet 100. Such an optimized arrangement advantageously reduces the overall size of the electrical cabinet 100 and also optimizes cable routing to reduce electrical losses and thus improve overall energy efficiency.

[0098] According to one embodiment, the electrical cabinet 100 comprises a plurality of third mechanical supports extending in a direction substantially perpendicular to the second mechanical support. Each third mechanical support includes for example third attachment points 131 suitable for cooperating with a lateral portion of at least one internal electrical equipment 120.

[0099] One advantage is to allow the addition of fixing points on the lateral edges of electrical equipment. Calculator and communication interface

[0100] According to one embodiment, the electrical cabinet 100 includes a computer 101. The computer 101 is configured to generate actuation, control, and / or piloting commands for one or more internal electrical devices 120 based on predefined parameters, or in response to a user action; either locally through interaction with a user interface, for example, a push button, or in response to a data frame received and transmitted from at least one remote device Ep

[0101] According to one embodiment, the computer is configured to generate a command to display a settings menu for the electrical cabinet. The settings menu allows, for example, the configuration of various elements of the electrical cabinet system, such as entering a Wi-Fi code, or setting activation temperature threshold values ​​for a cooling component.

[0102] According to one embodiment, the calculator 101 is configured to generate commands based on a combination of parameters from among the following parameters: • Power consumption data from at least one external device 200 • Data relating to the charge / discharge level of the electrical energy storage unit 10 over a predefined time interval • Data relating to the quantity of energy sold and / or purchased on the electricity grid over a predefined time interval • Data relating to the production of electrical energy by solar panels

[0103] Such commands may include commands to activate or deactivate internal electrical equipment 120, such as a fan, commands to actuate one or more switches, or commands to generate a data message, for example, an alert to be sent to a remote server. In one embodiment, the computer 101 includes means for wired connection to at least one other piece of equipment. This is, for example, equipment for establishing a link between the computer 101 and a data network. This is, for example, an Ethernet connection.

[0104] According to one embodiment, the calculator 101 includes connection means wireless to at least one remote device Eb II is for example a link allowing to send and / or receive messages by radio or optical means using protocols such as Wi-Fi, Bluetooth, LoRa, 3G, 4G, 5G or any other protocol for exchanging data by a wireless link.

[0105] According to one embodiment, the computer 101 is configured to receive instructions and data frames via wireless connection means to update one or more pieces of equipment in the electrical cabinet 100.

[0106] According to one embodiment, the computer 101 is configured to generate a control command for at least one internal electrical equipment 120 based on a request received via a communication interface 102 from a remote equipment Eh II, for example, a control command for a cooling unit received from a remote server, for example initiated by an administrator.

[0107] According to one embodiment, the control unit 101 is configured to automatically generate a control command for a cooling component in response to receiving a signal transmitted by a temperature sensor located in the electrical cabinet 100. In this case, the electrical cabinet 100 includes, for example, the temperature sensor or a plurality of temperature sensors. The control command for the cooling component is generated, for example, when a temperature measured by the sensor exceeds a threshold value, for example, 25°C. In this case, the control unit receives the signal and decodes it to compare the temperature value with the threshold value and to initiate or not the control command depending on the result of the comparison.

[0108] One advantage is to optimize the electrical production of the system by limiting losses due to the Joule effect.

[0109] According to one embodiment, the calculator 101 is configured to generate an alert to be issued by a communication interface 102 in response to the reception of a plurality of signals transmitted by the temperature sensor which records temperatures above a threshold value for a period exceeding a predefined time interval.

[0110] According to an illustrative example, the temperature sensor detects a temperature of 30°C and transmits this measurement to the computer 101, which then generates a command to activate a cooling component. The temperature sensor then periodically transmits temperature measurements that exceed 25°C for 5 minutes. The computer 101 then automatically generates an alert, which is transmitted via the communication interface 102 to a remote device Eb, for example, a user's smartphone or a remote administration console.

[0111] One advantage is to warn a user or administrator of a system malfunction.

[0112] According to one embodiment, the calculator 101 is configured to generate notifications relating to the status of at least one internal electrical equipment 120 of the cabinet 100. These are, for example, notifications relating to a charge / discharge state of an electrical energy storage unit 10, or notifications relating to electrical consumption data or electrical production data.

[0113] According to one embodiment, the computer 101 is configured to generate activation commands for one or more indicator lights depending on the state of at least one internal electrical device 120 or the state of the DC electrical circuit or the AC electrical circuit

[0114] According to one embodiment, the calculator 101 includes the communication interface 102. User interface

[0115] According to one embodiment, the electrical cabinet 100 includes a user interface 103. The user interface 103 allows, for example, a user to initiate control commands for equipment located in the electrical cabinet by means of an input interface, for example, commands to actuation switches Ai, A2, A3, A4. The user interface 103 is, for example, connected to the computer 101. The user interface 103 is, for example, configured to transmit commands to the computer 101 in response to an action by a user on the input interface.

[0116] In one case, the user interface 103 includes a touchscreen. The computer 101 is configured, for example, to generate an actuation command for at least one piece of equipment located in the electrical cabinet 100 in response to a touchscreen command from the user. These could be actuation commands for a cooling unit, or commands for actuation of a switch, for example, to open or close DC and / or AC electrical circuits.

[0117] According to one embodiment, the user interface 103 is configured to display at least one electrical consumption curve and / or at least one charge / discharge curve of the electrical energy storage unit 10. The calculator 101 is, for example, configured to generate a transmission command to a remote equipment Eb by means of the communication interface 102, of the consumption curves and / or charge / discharge curves of the electrical energy storage unit 10 either at regular time intervals, or in response to a user command via the input interface, or when a curve crosses a predefined threshold value.

[0118] According to one embodiment, the calculator is configured to display, on the user interface 103, a parameter menu for at least one piece of equipment present in the electrical cabinet 100. This is, for example, a menu for setting threshold values ​​for the actuation temperatures of a cooling element, or a menu for setting a maximum discharge percentage for the electrical energy storage units 10.

[0119] According to one embodiment, the computer is configured to display, on the user interface 103, remote control information for the electrical cabinet 100. According to one example, the electrical cabinet 100 is controlled from a remote server SERV connected to a NET data network.

[0120] In summary, the invention relates to a compact electrical cabinet, simple to install in any type of building, compact and easy to install, and comprising at least three switches that can be operated independently and in a logical and intuitive manner by a user for either: - Isolate a direct current electrical circuit and allow, for example, the implementation of maintenance operations while ensuring continuity in the power supply to electrical equipment external to the cabinet via an alternating current electrical circuit; - Isolate an AC electrical circuit, for example for work on equipment external to the cabinet and connected to said AC electrical circuit, while ensuring continuity in the production and storage of electrical energy from an external alternative energy source, for example photovoltaic; - To perform a return to an electricity network, for example to allow the implementation of maintenance operations on the electrical cabinet, while ensuring continuity in the supply of external electrical equipment connected to the AC electrical circuit.

Claims

Demands

1. Electrical cabinet (100) comprising: • A direct current electrical circuit; • An alternating current electrical circuit; • At least one electrical energy storage unit (10); • A set of internal electrical equipment (120) including: • a DC / AC converter (30) electrically connected to the electrical energy storage unit (10) and intended to ensure the conversion of a direct electric current produced by at least one solar panel into an alternating electric current; • a first switch (AJ) capable of being in a first closed state in which it electrically connects the internal electrical equipment (120) to the direct current electrical circuit, and in a second open state in which it electrically isolates the internal electrical equipment (120) from the direct current electrical circuit; • a second switch (A2) capable of being in a first closed state in which it electrically connects the AC circuit to a set of external equipment (200), and capable of being in a second open state in which it electrically isolates the AC circuit from the set of external equipment (200); • a third switch (A3) capable of being in a first state in which it electrically connects the alternating current electrical circuit to the electrical energy storage unit (10) and to an external electrical network, and capable of being in a second state in which it electrically connects the alternating current electrical circuit only to the external electrical network, characterized in that the first switch (AJ), the second switch (A2) and the third switch (A3) are capable of being operated independently of each other by a user so as to move from their respective first states to their respective second states and vice versa independently.

2. Electrical cabinet (100) according to claim 1, comprising a fourth switch (A4) capable of being in a first state in which it electrically connects the output of the AC electrical circuit to the set of external equipment (200), and in which it electrically connects the DC electrical circuit to the electrical energy accumulator (10), and capable of being in a second state in which it isolates the DC electrical circuit from the electrical energy accumulator (10), and in which it isolates the AC electrical circuit from the set of external equipment (200).

3. An electrical cabinet (100) according to any one of the preceding claims, comprising a computer (101) configured to process: • data on the electrical consumption of at least one of the external devices (200); • data on the electrical current production of said at least one solar panel; • data relating to the quantity of electrical energy stored in the electrical energy storage unit (10) over a predefined time interval; • data relating to the purchase and resale of electrical energy on the electrical grid.

4. Electrical cabinet (100) according to claim 3, wherein the internal electrical equipment assembly (120) comprises at least one temperature sensor (11) and at least one cooling element (12), said temperature sensor being configured to transmit signals including temperature measurements to the computer (101) at predefined time intervals, said computer (101) being configured to: • compare at least one temperature value from a signal transmitted by the temperature sensor with a predefined threshold value; • generate and issue an actuation command for the cooling element (12) when the temperature value exceeds the predefined threshold value.

5. Electrical cabinet according to any one of claims 3 to 4, comprising a communication interface (102) capable of: • transmitting first data messages (MESi) via a wired or wireless link to at least one remote equipment (EJ, • receiving a second data message (MES2) transmitted by the remote equipment (EJ.

6. Electrical cabinet according to claim 5, wherein the second data message (MES2) comprises an actuation signal for the first switch (AJ), the second switch (A2) and / or the third switch (A3), the communication interface (102) being configured to, when it receives the second data message (MES2): • decode said second data message (MES2) to extract the control signal; • transmit the control signal to the computer; and wherein the computer is configured to: • actuate the first switch (Ai), the second switch (A2) and / or the third switch (A3) according to the actuation signal.

7. Electrical cabinet according to any one of claims 5 to 6, wherein the first data messages (MESi) include: • power consumption data of external equipment (200) and / or, • data relating to an operating state of internal electrical equipment (120) or external equipment (200).

8. Electrical cabinet according to any one of the preceding claims, comprising: • two side walls (150,160) each comprising an internal face; • a first mechanical support (110) comprising two rails (151,161), each rail being fixed to the inner face of said side walls (150, 160), each rail supporting a portion of the electrical energy accumulator (10) and the two rails (151,161) being positioned opposite each other.

9. Electrical cabinet according to any one of the preceding claims, comprising a bottom wall (170) comprising a second mechanical support (120) comprising a plurality of first attachment points (121) cooperating mechanically with the internal electrical equipment (120).

10. Electrical cabinet according to any one of claims 4 to 9, comprising a user interface (103) connected to the computer (101), said user interface (103) comprising a screen and the computer (101) being configured to generate at least one command to display on the screen: • consumption data from the electrical energy storage unit (10), • data from energy production from at least one solar panel, • data from temperature measurements from the temperature sensor, • a parameter menu for the electrical cabinet (100).

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