Circuit breaker with opening and closing state output

Abstract

A circuit breaker with switching-on and switching-off state output comprises a base which is provided with a phase line channel, and the phase line channel extends along a first direction; the contact assembly is arranged in the phase line channel, the contact assembly comprises a rotating shaft, and the rotating shaft rotates to enable the circuit breaker to have a switching-on state and a switching-off state; the release seat is arranged above the base; the microswitch is detachably arranged in the tripper seat, is positioned above any non-intermediate phase line channel, and is triggered by the rotating shaft when the contact assembly is in an opening state; and the top cover is arranged above the base, and the release seat is positioned between the base and the top cover. The microswitch which is originally arranged on the top cover is downwards moved to be arranged in the base of the release, so that the distance between the microswitch and the rotating shaft is reduced, the rotating shaft can directly touch the microswitch in the opening and closing process, opening and closing signal output is achieved, and meanwhile the design of a corresponding ejector rod and a circuit board is omitted.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, in particular to a circuit breaker with an opening and closing state output. Background Art

[0002] In the field of circuit breakers, micro switches are often used in conjunction with rotating shafts to achieve sampling of opening and closing signals. The results of this sampling can be applied in many ways, such as feeding back to the host computer for opening indication, feeding back to the host computer for logic control, feeding back to the controllers of some circuit breakers with electric operation functions for logic control, controlling the power on and off of some functions, etc.

[0003] Taking CN214279888U and CN212750767U as examples, their micro switches are all fixed on a mounting plate, and then the mounting plate is fastened to the back of the base so that the micro switch is inside the base, thereby completing the installation of the micro switch. After installation, the bottom plate of the circuit breaker is fastened to the back of the base to close the back of the base.

[0004] This method makes the disassembly and assembly of the micro switch extremely inconvenient, because in addition to disassembling the base plate, the screws of the micro switch need to be disassembled and assembled, which is very unfavorable for the disassembly and assembly and maintenance of the micro switch.

[0005] Taking CN117976480 A as an example, although the design of the mounting plate is omitted, it requires an additional linkage structure, which relies on the rotating shaft to drive the linkage structure to trigger the micro switch. Its structure is relatively complex, and the damage of the linkage structure may cause the failure to output the opening and closing signals normally. Utility Model Content

[0006] In view of the deficiencies in the prior art, the present invention aims to provide a circuit breaker with an open / close state output.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A circuit breaker with an opening and closing state output, comprising:

[0009] A base, wherein a phase line channel is provided on the base and the phase line channel extends along a first direction;

[0010] A contact assembly is provided in the phase line channel, the contact assembly includes a rotating shaft, and the rotating shaft rotates to enable the circuit breaker to have a closed state and an open state;

[0011] A tripper seat is arranged above the base;

[0012] A micro switch is detachably arranged in the trip unit seat and is located above any non-intermediate phase line channel, and is triggered by the rotating shaft when the contact assembly is in the open state;

[0013] The top cover is arranged above the base, and the tripper seat is located between the base and the top cover.

[0014] There are two micro switches, and the distance between the two is adapted to the thickness of the moving contact connected to the rotating shaft.

[0015] The micro switch includes a hinged elastic arm and a switch triggered by the elastic arm.

[0016] A mounting through hole is provided in the release seat, and the micro switch is placed in the mounting through hole.

[0017] A positioning through-hole is provided on either side of the tripper seat, the positioning through-hole is arranged perpendicular to the mounting through-hole, and the positioning through-hole passes through the entire tripper seat. A pin shaft for fixing the micro switch is pluggable in the positioning through-hole.

[0018] The beneficial effects of the utility model are as follows: by moving the micro switch originally arranged on the top cover downward and setting it inside the base of the trip unit, the distance between the micro switch and the rotating shaft is reduced, so that the rotating shaft can directly touch the micro switch when opening and closing the circuit breaker, thereby realizing the output of the opening and closing signal, and at the same time eliminating the design of the corresponding ejector rod and circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an explosion diagram of the utility model.

[0020] Figure 2 This is the front view of the utility model (top cover omitted).

[0021] Figure 3 It is a partial cross-sectional view of the micro switch of the present utility model.

[0022] Figure 4 It is a cross-sectional schematic diagram of the micro switch of the present invention at another angle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] like Figure 1 and Figure 2 As shown, the utility model discloses a circuit breaker with an open and close state output (the relevant handle, arc extinguishing chamber and other parts are omitted in the figure), which includes a base, a contact assembly arranged in the base, a tripper seat, a micro switch arranged in the tripper seat and a top cover.

[0026] The base 100 is provided with a phase line channel 110, and the phase line channel 110 extends along a first direction, which is the direction from the input line to the output line of the base, that is, the length direction of the base. The phase line channels can be 3 or 4, such as three phases A, B, and C or four phases A, B, C, and N, and are set according to needs. The non-middle phase line channel mentioned below refers to the non-B phase phase line channel.

[0027] The contact assembly is arranged in the phase line channel 110. The contact assembly includes a rotating shaft 400, and a moving contact is provided on the rotating shaft. The rotation of the rotating shaft can drive the moving contact to rotate relative to each other, thereby realizing the opening and closing of the circuit breaker, that is, the rotation of the rotating shaft 400 enables the circuit breaker to have a closed state and an open state.

[0028] The tripper seat 300 is arranged above the base 100 and is preferably fixed to the base by screws, so that it is convenient to disassemble.

[0029] The micro switch 500 is detachably arranged in the tripper base 300 and is located above any non-intermediate phase line channel 110. When the contact assembly is in the open state, it is triggered by the rotating shaft. That is, the micro switch 500 is arranged in the tripper base so that it is as close to the rotating shaft as possible, so that the rotating shaft can directly trigger the micro switch without the need for additional parts such as a push rod to increase the stroke.

[0030] The top cover 200 is disposed above the base 100 , and the trip unit seat 300 is located between the base 100 and the top cover 200 .

[0031] There are two micro switches 500, and the distance between them is adapted to the thickness of the movable contact 600 connected to the rotating shaft. If two micro switches are used, one can be used as an auxiliary switch, and they can be placed on both sides of the movable contact to prevent them from being affected by the movable contact. At the same time, the trigger stroke of the two micro switches can be consistent, ensuring consistent signal output.

[0032] like Figure 3 As shown, the micro switch 500 includes a hinged elastic arm 510 and a switch 520 triggered by the elastic arm 510. When the shaft rotates, it presses the elastic arm, causing the elastic arm to trigger the corresponding switch, thereby causing the micro switch to send a signal.

[0033] like Figure 4 As shown, a mounting through hole 310 is provided in the trip unit base 300, and the micro switch 500 is placed in the mounting through hole 310, so that the micro switch can enter the base through the mounting through hole portion, so that it can be as close to the rotating shaft as possible, and thus the micro switch can be triggered by the rotating shaft without the need for special design of the rotating shaft.

[0034] A positioning through-hole 320 is provided on either side of the tripper seat 300 . The positioning through-hole 320 is perpendicular to the mounting through-hole 310 and passes through the entire tripper seat 300 . A pin for fixing the micro switch 500 is pluggable in the positioning through-hole 320 .

[0035] The positioning hole of the micro switch itself is passed through by the pin shaft, thereby making its fixation more reliable. At the same time, the design of two pin shafts can also ensure that the micro switch will not be positionally offset, affecting the accuracy of the status indication.

[0036] The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the scope of protection of the present invention.

Claims

1. A circuit breaker with an open / close status output, characterized in that: It includes: A base (100), wherein a phase line channel (110) is provided on the base, and the phase line channel (110) is extended along a first direction; A contact assembly is arranged in the phase line channel (110), the contact assembly comprising a rotating shaft (400), and the rotating shaft (400) rotates to enable the circuit breaker to have a closed state and an open state; A tripper seat (300) is arranged above the base (100); A micro switch (500) is detachably arranged in the tripper seat (300) and is located above any non-middle phase line channel (110), and is triggered by the rotating shaft when the contact assembly is in an open state; The top cover (200) is arranged above the base (100), and the tripper seat (300) is located between the base (100) and the top cover (200).

2. A circuit breaker with an open / close state output according to claim 1, characterized in that: There are two micro switches (500), and the distance between the two is adapted to the thickness of the moving contact (600) connected to the rotating shaft.

3. The circuit breaker with open / close status output according to claim 1, characterized in that: The micro switch (500) comprises a hinged elastic arm (510) and a switch (520) triggered by the elastic arm (510).

4. A circuit breaker with an open / close state output according to claim 1, characterized in that: A mounting through hole (310) is provided in the release seat (300), and the micro switch (500) is placed in the mounting through hole (310).

5. A circuit breaker with an open / close state output according to claim 4, characterized in that: A positioning through-hole (320) is provided on either side of the tripper seat (300), the positioning through-hole (320) is arranged perpendicular to the mounting through-hole (310), and the positioning through-hole (320) is arranged to pass through the entire tripper seat (300), and a pin for fixing the micro switch (500) is pluggable in the positioning through-hole (320).

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