SYSTEM, CIRCUIT BREAKER, DISPLAY UNIT AND DISPLAY HOLDER

Abstract

A circuit breaker system has a circuit breaker with a circuit breaker communication unit. A display unit contains a display housing, and the circuit breaker and the display unit are configured such that the display unit is latched to the circuit breaker. The circuit breaker and the display unit, in the latched state, are connected to one another by a plug connection, such that data of the circuit breaker are displayable on the display unit. A display holder is provided, containing a holder housing and a holder communication unit. The display holder is configured such that the display unit can be latched into the display holder, that the display holder and the display unit, in the latched state, are connected to one another by an electrical plug connection, and that the display holder is configured such that the data of the circuit breaker are displayed in the latched state.

Claims

1. A circuit breaker system for an electrical low-voltage circuit, the circuit breaker system comprising: a circuit breaker containing: a circuit breaker housing having connections for conductors of the electrical low-voltage circuit; a current sensor for determining a magnitude of a current in the electrical low-voltage circuit; an interruption unit having contacts for interrupting the electrical low-voltage circuit; an electronic control unit connected to said current sensor and said interruption unit and initiating an interruption of the electrical low-voltage circuit in an event of current limit values or current-time limit values being exceeded; a circuit breaker communication unit; a display unit having a display housing, said circuit breaker and said display unit configured such that said display unit being latched to said circuit breaker, such that said display unit is visible on said circuit breaker; an electrical plug connection, said circuit breaker and said display unit, in a latched state, being connected to one another by said electrical plug connection, such that data of said circuit breaker are displayable on said display unit; and a display holder, containing: a holder housing; a holder communication unit; said display holder configured such that said display unit being latched into said display holder, said display holder and said display unit, in a latched state, are connected to one another by said electrical plug connection; and said display holder, by means of said holder communication unit, establishing a communication connection to at least one said circuit breaker communication unit, and said display holder being configured such that the data of said circuit breaker or optionally data of connected circuit breakers are displayed in the latched state of said display unit.

2. The circuit breaker system according to claim 1, wherein said circuit breaker is one of a plurality circuit breakers.

3. A circuit breaker for electrical low-voltage circuit, the circuit breaker comprising: a circuit breaker housing having connections for conductors of the electrical low-voltage circuit; a current sensor for determining a magnitude of a current in the electrical low-voltage circuit; an interruption unit having contacts for interrupting the electrical low-voltage circuit; an electronic control unit connected to said current sensor and said interruption unit and initiating an interruption of the electrical low-voltage circuit in an event of current limit values or current-time limit values being exceeded; a circuit breaker communication unit; a display unit having a display housing, said display unit configured such that said display unit is latched to the circuit breaker, such that said display unit is visible on the circuit breaker; an electrical plug connection, the circuit breaker and said display unit, in a latched state, are connected to one another by said electrical plug connection, such that data of said circuit breaker are displayable on said display unit; and a display holder, containing: a holder housing; a holder communication unit; said display holder configured such that said display unit being latched into said display holder, said display holder and said display unit, in a latched state, are connected to one another by said electrical plug connection; and said display holder, by means of said holder communication unit, establishing a communication connection to at least one said circuit breaker communication unit, and said display holder is configured such that data of the circuit breaker or optionally data of connected circuit breakers are displayed in the latched state of said display unit.

4. The circuit breaker according to claim 3, wherein said display unit is latchable to a front side of the circuit breaker.

5. The circuit breaker according to claim 3, wherein said display unit is latchable into said electronic control unit.

6. The circuit breaker according to claim 2, wherein said circuit breaker communication unit is configured such that a wireless communication is possible.

7. The circuit breaker according to claim 6, wherein said wireless communication is Bluetooth communication.

8. A display holder for a display unit of a circuit breaker, the display holder comprising: a holder housing; a holder communication unit; an electrical plug connection, the display holder configured such that the display unit being latched into the display holder, said display holder and the display unit, in a latched state, are connected to one another by said electrical plug connection; and the display holder, by means of said holder communication unit, establishing a communication connection to at least one circuit breaker communication unit of the circuit breaker, and the display holder is configured such that data of the circuit breaker or optionally data of connected circuit breakers are displayed in the latched state of the display unit.

9. The display holder according to claim 8, further comprising a power supply for the display unit.

10. The display holder according to claim 8, further comprising a power supply connection.

11. The display holder according to claim 8, further comprising at least one magnet, in order to enable a fastening to a switchgear cabinet or a metal door.

12. The display holder according to claim 8, wherein said holder communication unit is configured such that a wireless communication is possible.

13. The display holder according to claim 12, wherein the wireless communications is Bluetooth communications.

14. A display unit for a circuit breaker, the display unit comprising: a display housing, the circuit breaker and the display unit configured such that the display unit being latched to the circuit breaker, such that the display unit is visible on the circuit breaker; and an electrical plug connection, the circuit breaker and the display unit, in a latched state, are connected to one another by said electrical plug connection, such that data of the circuit breaker are displayable on the display unit.

15. The display unit according to claim 14, further comprising a touch or/and LCD display.

16. The display unit according to claim 14, further comprising a securing mechanism, for securing a latching connection when the display unit is latched in the circuit breaker or a display holder.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0043] FIG. 1 is a schematic illustration of a circuit breaker for elucidating the invention;

[0044] FIG. 2 is a schematic illustration of a display unit for elucidating the invention;

[0045] FIG. 3 is a schematic illustration of a circuit breaker in a switchgear cabinet for elucidating the invention;

[0046] FIG. 4 is a schematic illustration of a switchgear cabinet door with a display holder for elucidating the invention;

[0047] FIG. 5 is a schematic illustration of a display unit with a circuit breaker for elucidating the invention; and

[0048] FIG. 6 is a schematic illustration of a display unit with a display holder and also a circuit breaker for elucidating the invention.

DETAILED DESCRIPTION OF THE INVENTION

[0049] Referring now to the figures of the drawings in detail and first, particularly to FIG. 1 thereof, there is shown, in the left-hand region, a circuit breaker LS in plan view, i.e. from the front. In the right-hand region, the circuit breaker LS can be seen in side view. The circuit breaker LS is for example a low-voltage circuit breaker, e.g. a molded case circuit breaker (MCCB) as in the example in accordance with FIG. 1. The circuit breaker LS has an electronic control unit ETU. The electronic control unit ETU has a display unit DISP. The display unit DISP has a display housing. The circuit breaker LS, in particular the electronic control unit ETU, and the display unit DISP are configured in such a way that the display unit DISP can be latched to the circuit breaker LS, in particular into the electronic control unit ETU. This is effected in such a way that the display unit DISP is visible on the circuit breaker LS. The circuit breaker LS and the display unit DISP, in the latched state, are connected to one another by an electrical plug connection ES1 (not visible in FIG. 1), such that data of the circuit breaker LS are displayable on the display unit DISP, and are displayed in the (power-supplied) switched-on state (or in the state ready for operation).

[0050] FIG. 2 shows a schematic illustration of an exemplary display unit DISP. The display unit DISP has a (touch) (LCD) display LCDA, in particular for displaying data of the circuit breaker LS.

[0051] The display unit DISP has display elements LED, in the example four indicated display elements LED.

[0052] The display unit DISP has an indicated latching connection EV.

[0053] The display unit DISP has a securing mechanism BL, for securing the latching connection EV when the display unit is latched in the circuit breaker or the display holder. By way of example, the securing mechanism BL can have a bayonet lock.

[0054] The display unit DISP has a pairing switch BPB, for establishing or enabling a communication connection to at least one circuit breaker communication unit, in particular a plurality of circuit breaker communication units.

[0055] The display unit DISP has a second electrical plug connection ES2, in particular on the front of the display unit DISP.

[0056] The display unit DISP has a cover AD, in particular for the second electrical plug connection ES2, the pairing switch BPB or/and the securing mechanism BL, as depicted by way of example in FIG. 2.

[0057] FIG. 3 shows a schematic illustration of one circuit breaker LS in a switchgear cabinet CAB. Alternatively, a plurality of circuit breakers can be arranged in the switchgear cabinet CAB.

[0058] FIG. 4 shows a schematic illustration of a switchgear cabinet door with a display holder. The switchgear cabinet CAB is illustrated or indicated with a closed switchgear cabinet door DT. The switchgear cabinet door DT has a display holder DAM, with a latched display unit DISP.

[0059] The switchgear cabinet CAB or/and the switchgear cabinet door DT preferably consist(s) at least partly of metal, in particular steel or an iron-containing alloy. In this case, the display holder DAM preferably has, as configuration, at least one magnet in order to enable in particular a fastening to the switchgear cabinet CAB or the (switchgear cabinet) metal door DT.

[0060] The display holder DAM has a power supply for the display unit DISP. In this case, the display holder DAM can have a power supply connection, indicated by an arrow and 24 V, for example for feeding in a supply voltage, for example of 24 volts.

[0061] The display holder DAM has a holder communication unit HKE, indicated by a symbol. The circuit breaker analogously has a circuit breaker communication unit LKE, indicated by the same symbol. Both communications units LKE, HKE can be connected by a communication connection, for example by a Bluetooth communication.

[0062] FIG. 5 shows a schematic illustration of a display unit DISP with a circuit breaker LS, in particular with an electronic control unit ETU.

[0063] The electronic control unit ETU has a first processor MCU1. The latter is connected to a circuit breaker communication unit LKE. The first processor MCU1 is furthermore connected to a first electrical plug connection ES1; in the example, the first processor is connected to the circuit breaker-side or electronic control unit-side part of the first electrical plug connection ES1. The electrical plug connection ES1 can be for example a USB connection, in particular a USB type C connection.

[0064] The display unit DISP has a second processor MCU2. The latter is connected to the first electrical plug connection ES1; in the example, to the display-side part of the first electrical plug connection ES1′. (The electrical plug connection ES1 can be for example a USB connection, in particular a USB type C connection.).

[0065] The second processor MCU2 is furthermore connected to the (touch) LCD display LCDA.

[0066] The second processor MCU2 is furthermore connected to the second electrical plug connection ES2, to the display-side part of the second electrical plug connection ES2 in the example. The second electrical plug connection ES2 can for example likewise be a USB connection, in particular a USB type C connection.

[0067] The first or/and second processor can be connected to further units.

[0068] In the example in accordance with FIG. 5, the display unit DISP is latched to the circuit breaker LS, in particular to the electronic control unit ETU therefore. In this case, i.e. in the latched state, the circuit breaker LS and the display unit DISP are connected to one another by the first electrical plug connection ES1, such that data of the circuit breaker are displayable on the display unit.

[0069] FIG. 6 shows a schematic illustration of a display unit DISP with a display holder DAM and also a circuit breaker LS. FIG. 6 shows an illustration in accordance with FIG. 5, with the difference that the display unit DISP has been plugged or latched into a display holder DAM. The display holder has a holder housing, a holder communication unit HKE and the first electrical plug connection ES1″.

[0070] The first electrical plug connection ES1″ is preferably identical to the circuit breaker-side or electronic control unit-side part of the first electrical plug connection ES1. Furthermore, a power supply NT is provided. The latter can have a power supply connection 24 V. The power supply NT can serve for supplying the display holder and the display unit.

[0071] In the example in accordance with FIG. 6, the display unit DISP has been latched into the display holder DAM. The display holder DAM and the display unit DISP, in the latched state, are connected to one another by the first electrical plug connection (ES1), ES1′, ES1″. The display holder DAM, by means of the holder communication unit HKE, establishes a (wireless) communication connection to at least one circuit breaker communication unit LKE, in particular to a plurality of circuit breaker communication units LKE (of a plurality of circuit breakers). The data of the circuit breaker LS or optionally the data of the connected circuit breakers are transferred by the holder communication unit HKE via the first electrical plug connection ES1′, ES2″ (in the latched state of the display unit) to the display unit DISP and can be displayed there.

[0072] The power supply NT can be connected to an (external) supply voltage. Alternatively or additionally, the power supply NT can be connected to an external or internal battery BAT, which enables or supports mobile operation.

[0073] The invention proposes a display unit (display module) comprising an in particular latching mechanism or catch mechanism, for latching into the circuit breaker, in particular the electronic control unit ETU. Furthermore a display holder (door mounting module) DAM. The latter has the same latching mechanism or catch mechanism.

[0074] The display holder DAM is configured in such a way that a connection to one circuit breaker (one to one) or to multiple (many) circuit breakers is possible (many to one). If the display holder DAM is attached to the cabinet door, the status of one or more circuit breakers/devices in the cabinet can be displayed, without the door being opened during operation.

[0075] The display holder has a holder communication unit for wireless connection. The complexity of the cabling and the costs for operators are thus reduced.

[0076] Although the invention has been more specifically illustrated and described in detail by means of the exemplary embodiment, nevertheless the invention is not restricted by the examples disclosed and other variations can be derived therefrom by the person skilled in the art, without departing from the scope of protection of the invention.