Undervoltage indicating device and circuit breaker

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and discloses an under-voltage indicating device and a circuit breaker. The circuit breaker comprises a shell, an inspection window is arranged on the shell, an undervoltage tripper is arranged in the shell, the undervoltage indicating device comprises an elastic piece and a lever rotating piece rotationally arranged in the shell, an indicating structure is arranged at one end of the lever rotating piece, a stress structure is arranged at the other end of the lever rotating piece, and the stress structure and the undervoltage tripper are correspondingly arranged. The lever rotating piece has a first state in which the first indicating area is right opposite to the inspection window and a second state in which the second indicating area is right opposite to the inspection window. The undervoltage indicating device is arranged on the shell of the circuit breaker, and the elastic piece and the undervoltage tripper are used for switching the corresponding indicating area of the lever rotating piece to be exposed from the inspection window of the shell, so that the undervoltage power loss condition of the circuit breaker is visually indicated, the shell does not need to be disassembled, and a professional measuring tool does not need to be adopted; whether opening is caused by undervoltage can be quickly determined according to the indication information of the indication area, and the maintenance efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electrical apparatus technical field especially relates to a kind of under-voltage indicating device and circuit breaker. BACKGROUND

[0002] The main function of circuit breaker is to cut off the circuit when short circuit or overload occurs in the circuit, and when the input voltage is lower than the voltage required for normal operation, the circuit breaker needs to cut off the power supply to protect the equipment and system from damage caused by too low voltage.

[0003] In the prior art, when the circuit breaker product is tripped, it cannot be directly observed and confirmed whether the tripping is caused by under-voltage, but only by measuring the under-voltage interface voltage with professional measuring tools or by removing the product main cover to observe the under-voltage working state to confirm the tripping reason, which is complicated and time-consuming, wasting manpower and resources.

[0004] Therefore, it is urgent to provide an under-voltage indicating device and circuit breaker to directly indicate the under-voltage loss of the circuit breaker, simplify the maintenance steps and improve the maintenance efficiency. SUMMARY

[0005] The utility model aims to provide an under-voltage indicating device and circuit breaker to directly indicate the under-voltage loss of the circuit breaker, simplify the maintenance steps and improve the maintenance efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides an under-voltage indicating device, which is arranged on a circuit breaker, wherein the circuit breaker comprises a shell, the shell is provided with a viewing window, and the shell is provided with an under-voltage release.

[0008] A lever rotating member is rotatably arranged in the shell, one end of the lever rotating member is provided with an indicating structure, the other end is provided with a force receiving structure, the force receiving structure is arranged corresponding to the under-voltage release, the indicating structure has a first indicating area and a second indicating area, the lever rotating member has a first state in which the first indicating area is opposite to the viewing window, and a second state in which the second indicating area is opposite to the viewing window.

[0009] An elastic member is connected to one end of the lever rotating member and the other end is used to connect to the shell.

[0010] The force receiving structure can be pressed by the under-voltage release to drive the lever rotating member to rotate, so that the lever rotating member is switched from the first state to the second state; or the force receiving structure is not pressed, and the elastic member makes the lever rotating member return to the original position, so that the lever rotating member is switched from the second state to the first state.

[0011] As an optional technical scheme of the under-voltage indication device, the lever rotating member comprises a connecting cylinder, the indication structure and the force receiving structure are connected to two sides of the connecting cylinder respectively, and the connecting cylinder is rotationally connected to the shell through a rotating shaft.

[0012] As an optional technical scheme of the under-voltage indication device, the indication structure comprises:

[0013] An arc-shaped plate, the first indication area and the second indication area are arranged on the outer side of the arc-shaped plate;

[0014] A support part, one end of the support part is connected to the connecting cylinder, and the other end of the support part is connected to the inner side of the arc-shaped plate, and the support part is connected with the elastic member.

[0015] As an optional technical scheme of the under-voltage indication device, a groove is arranged on the indication structure, and one end of the elastic member is hung in the groove.

[0016] As an optional technical scheme of the under-voltage indication device, the under-voltage indication device is arranged outside the operating mechanism of the circuit breaker, a through hole is arranged on the force receiving structure for the under-voltage trip lever of the under-voltage release to extend to abut against the opening half shaft of the operating mechanism;

[0017] And / or, the under-voltage indication device is arranged inside the operating mechanism of the circuit breaker, a pressing part is arranged on the force receiving structure, and when the force receiving structure is pressed by the under-voltage release, the pressing part can abut against the opening half shaft of the operating mechanism.

[0018] As an optional technical scheme of the under-voltage indication device, the pressing part is provided with a pressing protrusion, the cross section of the pressing protrusion is semicircular, and the arc surface of the pressing protrusion is used for contacting the opening half shaft.

[0019] As an optional technical scheme of the under-voltage indication device, the force receiving structure comprises a pressing plate, one end of the pressing plate is connected with the lever rotating member, and the other end of the pressing plate is used for corresponding arrangement with the under-voltage release.

[0020] As an optional technical scheme of the under-voltage indication device, an abutting plane is arranged on the force receiving structure, and the abutting plane is used for corresponding arrangement with the under-voltage release.

[0021] As an optional technical scheme of the under-voltage indication device, a protrusion is arranged on the force receiving structure, and one end of the elastic member is connected with the protrusion.

[0022] The utility model provides a kind of circuit breaker, and the circuit breaker comprises the under-voltage indication device described above.

[0023] Beneficial effects:

[0024] The utility model provides a kind of under voltage indicating device, be provided on circuit breaker, and circuit breaker includes shell, be equipped with inspection window on shell, under voltage release is equipped in shell, the under voltage indicating device includes lever rotating member and elastic member, lever rotating member is rotationally arranged in shell, one end of lever rotating member is equipped with indicating structure, other end is equipped with force structure, force structure is correspondingly arranged with under voltage release, indicating structure is equipped with first indicating area and second indicating area, lever rotating member has the first state that first indicating area is directly opposite with inspection window, and the second state that second indicating area is directly opposite with inspection window;One end of elastic member is connected with lever rotating member, other end is used to be connected with shell;Force structure can be under voltage release exert pressure, drive lever rotating member rotation, make lever rotating member switch from first state to second state, or force structure is not exerted pressure, and elastic member makes lever rotating member return to reset, and lever rotating member switches from second state to first state.By being provided with under voltage indicating device on circuit breaker shell, corresponding indicating area of lever rotating member is exposed from inspection window using elastic member and under voltage release, to directly indicate the under voltage outage condition of circuit breaker, without removing shell also without using professional measuring tool, according to the indication information of indicating area, whether it is caused by under voltage to open can be quickly determined, maintenance step is simplified, and maintenance efficiency is effectively improved.

[0025] The utility model provides a kind of circuit breaker, and the circuit breaker includes under voltage indicating device.By being provided with under voltage indicating device, the under voltage outage condition of circuit breaker can be directly indicated. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the three-dimensional schematic view of the lever rotating member provided in the utility model embodiment one;

[0027] Figure 2 It is the side view of the lever rotating member provided in the utility model embodiment one;

[0028] Figure 3 It is the partial structure schematic view of circuit breaker (first visual angle) provided in the utility model embodiment one;

[0029] Figure 4 It is the partial structure schematic view of circuit breaker (second visual angle) provided in the utility model embodiment one;

[0030] Figure 5 It is the first visual angle three-dimensional schematic view of the lever rotating member provided in the utility model embodiment two;

[0031] Figure 6 It is the side view of the lever rotating member provided in the utility model embodiment two;

[0032] Figure 7is a second perspective view of the lever rotating piece provided by the embodiment two of the utility model;

[0033] Figure 8 is a partial structure schematic view of the circuit breaker (first perspective view) provided by the embodiment two of the utility model;

[0034] Figure 9 is Figure 8 the local enlarged view at C in the middle.

[0035] in the figure:

[0036] 10, lever rotating piece; 11, indicating structure; 111, recess; 12, connecting barrel; 13, stress structure; 131, protrusion; 132, abutting plane; 133, pressing part; 134, through hole;

[0037] 20, elastic piece;

[0038] 31, under-voltage core; 32, under-voltage tripping lever; 40, opening half shaft;

[0039] A, first indicating area; B, second indicating area. DETAILED DESCRIPTION

[0040] The utility model will be further explained in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0041] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication or interaction of two elements inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0042] In the utility model, unless otherwise expressly provided and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0043] In the description of the embodiments, the terms "upper", "lower", "left", "right" and the like orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] Embodiment one

[0045] As shown in Figures 1 to 4 The utility model provides a kind of under-voltage indicating device and circuit breaker, the circuit breaker includes shell and be arranged on the under-voltage indicating device of shell, shell is equipped with viewing window, and shell is equipped with under-voltage release, the under-voltage indicating device includes lever rotating piece 10 and elastic member 20, lever rotating piece 10 is rotationally arranged in shell, one end of lever rotating piece 10 is equipped with indicating structure 11, other end is equipped with force structure 13, force structure 13 is correspondingly arranged with under-voltage release, indicating structure 11 is equipped with first indicating area and second indicating area, lever rotating piece 10 has first indicating area and viewing window directly opposite first state, and second indicating area and viewing window directly opposite second state;One end of elastic member 20 is connected with lever rotating piece 10, other end is used to be connected with shell;Force structure 13 can be under-voltage release exerted pressure, drive lever rotating piece 10 rotation, make lever rotating piece 10 switch from first state to second state, or force structure 13 is not exerted pressure, and elastic member 20 makes lever rotating piece 10 return to normal, and lever rotating piece 10 switches from second state to first state.

[0046] By being provided with under-voltage indicating device on circuit breaker shell, corresponding indicating area of lever rotating piece 10 is exposed from viewing window using elastic member 20 and under-voltage release, to directly indicate under-voltage power failure condition of circuit breaker, without removing shell and without using professional measuring tool, whether under-voltage causes tripping can be quickly determined according to the indication information of indicating area, maintenance step is simplified, and maintenance efficiency is effectively improved.

[0047] In the embodiment, the lever rotating piece 10 comprises a connecting cylinder 12, the indicating structure 11 and the force receiving structure 13 are connected to the two sides of the connecting cylinder 12 respectively, and the connecting cylinder 12 is rotatably connected to the shell through a rotating shaft. The lever rotating piece 10 is of an integrated structure. By arranging the connecting cylinder 12, the connecting cylinder 12 is sleeved on the rotating shaft and is rotatably connected to the shell through the rotating shaft, so that the structure is simple and the stability of the lever rotating piece 10 is ensured.

[0048] Specifically, the indicating areas of the indicating structure 11 are taken as examples of a first indicating area A and a second indicating area B; the indicating structure 11 has an arc-shaped plate, the outer side of the arc-shaped plate faces the viewing window of the shell, and the first indicating area A and the second indicating area B are arranged side by side on the outer side. In the embodiment, the first indicating area A and the second indicating area B are both rectangular; a certain interval is arranged between the first indicating area A and the second indicating area B.

[0049] In the embodiment, the first indicating area A is engraved with the word "under-voltage normal", and the second indicating area B is engraved with the word "under-voltage loss of power"; the surface of the first indicating area A is green, and the surface of the second indicating area B is red. By engraving words or marking colors on the indicating areas, the normal state and the under-voltage loss of power state can be distinguished.

[0050] Alternatively, the indicating structure 11 further comprises a support part, the arc-shaped plate is connected to the connecting cylinder 12 through the support part; the support part is provided with a groove 111, and one end of the elastic element 20 is hung in the groove 111. By arranging the groove 111 on the support part to hang the elastic element 20, the end of the elastic element 20 can be fixed on the support part, so that the normal use of the under-voltage indicating device is not affected by the positional displacement of the elastic element 20. In the embodiment, the support part is V-shaped, the small end of the support part is connected to the connecting cylinder 12, and the large end of the support part is connected to the inner side of the arc-shaped plate; the elastic element 20 can be a spring, such as a tension spring.

[0051] In the embodiment, one end of the elastic element 20 is connected to the shell, and the other end is hung on the support part of the indicating structure 11. In other embodiments, the elastic element 20 can also be hung on the force receiving structure 13, and it is necessary to note that the indicating marks on the first indicating area A and the second indicating area B are reversed, for example, the word "under-voltage loss of power" is engraved on the first indicating area A, and the word "under-voltage normal" is engraved on the second indicating area B.

[0052] It can be understood that the lever rotating piece 10 is a lever structure, whether the elastic element 20 is associated with the indicating structure 11 or the elastic element 20 is associated with the force receiving structure 13, the reset of the lever rotating piece 10 can be realized, so that the corresponding indicating area is exposed from the viewing window by rotating the lever rotating piece 10.

[0053] Further, the force receiving structure 13 comprises a pressing plate, one end of the pressing plate is connected with the lever rotating part 10, and the other end of the pressing plate is used for being correspondingly arranged with the under-voltage release. In the embodiment, the cross section of the pressing plate of the force receiving structure 13 is in the shape of a Z-shaped plate; one end of the pressing plate is connected with the connecting cylinder 12, and the other end of the pressing plate is in the shape of a flat plate and is used for being arranged below the under-voltage core 31 of the under-voltage release.

[0054] In the embodiment, the under-voltage indication device is arranged outside the operating mechanism of the circuit breaker; the under-voltage indication device and the under-voltage core 31 are located above the operating mechanism. By arranging the under-voltage indication device outside the operating mechanism of the circuit breaker, the maintenance and replacement of the under-voltage indication device are facilitated.

[0055] Optionally, a through hole 134 is arranged on the pressing plate of the force receiving structure 13, the through hole 134 is used for allowing the under-voltage release rod 32 of the under-voltage release to extend out to press the opening half shaft 40 of the operating mechanism. In the embodiment, the through hole 134 is in the shape of an ellipse; when the under-voltage is lost, the under-voltage core 31 falls off, the under-voltage release rod 32 falls with the under-voltage core 31, the under-voltage core 31 presses the pressing plate of the force receiving structure 13, and the under-voltage release rod 32 can be inserted from the through hole 134 to press the opening half shaft 40, so that the circuit breaker is in the opening state. The following is the specific use process of the under-voltage indication device in the embodiment:

[0056] The under-voltage indication device is arranged outside the operating mechanism of the circuit breaker, the under-voltage indication device is associated with the under-voltage release, and the pressing plate of the force receiving structure 13 is located below the under-voltage core 31; a viewing window is arranged on the shell, and the under-voltage working state can be directly observed by naked eyes through the viewing window when the under-voltage is normal or the under-voltage is lost.

[0057] When the under-voltage is powered on, the under-voltage core 31 is attracted, the under-voltage indication device is in the normal position under the action of the elastic member 20, and the circuit breaker is in the closing state; at this time, the first indication area A is exposed from the viewing window, and the staff can see the word “under-voltage normal” from the viewing window.

[0058] When the under-voltage is lost, the under-voltage core 31 falls off, the circuit breaker is in the under-voltage lost state, the under-voltage core 31 presses the pressing plate of the force receiving structure 13, the connecting cylinder 12 rotates around the rotating shaft, and the indication structure 11 is upturned; at this time, the second indication area B is exposed from the viewing window, and the staff can see the word “under-voltage lost” from the viewing window, and at the same time, the under-voltage release rod 32 presses the opening half shaft 40 of the operating mechanism, so that the circuit breaker is in the opening state.

[0059] By arranging the under-voltage indication device, the under-voltage indication device can be switched between the under-voltage powered on state and the under-voltage lost state, so as to directly indicate the working state of the circuit breaker, facilitate the quick judgment of problems when the power is not normally lost or other faults occur, and save the maintenance time.

[0060] Embodiment two

[0061] In the first embodiment, the under-voltage indicating device is arranged outside the operating mechanism, as shown in Figures 5 to 9 Different from the first embodiment, the under-voltage indicating device in the present embodiment is arranged inside the operating mechanism of the circuit breaker, and the force receiving structure 13 is provided with a pressing portion 133. When the force receiving structure 13 is pressed by the under-voltage release, the pressing portion 133 can press the opening half shaft 40 of the operating mechanism.

[0062] Optionally, the pressing portion 133 is provided with a pressing protrusion, and the cross section of the pressing protrusion is semicircular. The arc surface of the pressing protrusion is used to contact the opening half shaft 40.

[0063] By arranging the under-voltage indicating device inside the operating mechanism and providing the pressing portion 133, when the force receiving structure 13 is pressed by the under-voltage release, the lever rotating member 10 is driven to rotate. At this time, the second indicating area B of the indicating structure 11 is opposite to the viewing window, and the pressing portion 133 of the force receiving structure 13 presses the opening half shaft 40 of the operating mechanism, so that the circuit breaker is in the opening state. The structure is compact, space-saving, and other parts are not needed to trigger the opening half shaft 40. It is also convenient to arrange other additional components outside the operating mechanism. The structure and application principle of the opening half shaft 40 can be arranged according to the prior art, which will not be described here.

[0064] In the present embodiment, the lever rotating member 10 also includes the indicating structure 11, the connecting cylinder 12, and the force receiving structure 13, and the indicating structure 11 and the force receiving structure 13 are connected to the two sides of the connecting cylinder 12, respectively. The indicating structure 11 includes an arc-shaped plate and a support portion. The first indicating area A and the second indicating area B are located on the outer side of the arc-shaped plate, and the outer side of the arc-shaped plate is arranged to face the viewing window of the housing. One end of the support portion is connected to the connecting cylinder 12, and the other end of the support portion is connected to the inner side of the arc-shaped plate.

[0065] In the present embodiment, the support portion is a fan ring and is in a plate shape. The small end of the support portion is connected to the connecting cylinder 12, and the large end of the support portion is connected to the inner side of the arc-shaped plate. The first indicating area A is engraved with the word "normal pressure", and the second indicating area B is engraved with the word "under-voltage". The surface of the first indicating area A is green, and the surface of the second indicating area B is red. By engraving words or using colors as marks on the indicating areas, the normal state and the under-voltage loss of power state can be distinguished.

[0066] In the present embodiment, "normal pressure" has the same meaning as "under-voltage normal" in the first embodiment, and "under-voltage" has the same meaning as "under-voltage loss of power" in the first embodiment. In other embodiments, other words can be engraved on the indicating areas to distinguish the two indicating areas, or other colors can be used as marks.

[0067] Optionally, the force receiving structure 13 is provided with a protrusion 131 connected with one end of the elastic member 20, and the force receiving structure 13 is provided with an abutting plane 132 corresponding to the under-voltage release. In the embodiment, the abutting plane 132 is associated with the under-voltage contact of the under-voltage release, and the abutting plane 132 is located below the under-voltage contact, and the under-voltage contact can contact the abutting plane 132 and apply pressure to the force receiving structure 13 to make the lever rotating member 10 rotate; by setting the protrusion 131 and the abutting plane 132 to cooperate with the elastic member 20 and the under-voltage contact respectively, it is ensured that the indication area can be switched by the elastic member 20 and the under-voltage contact, so as to accurately indicate the under-voltage state.

[0068] In the embodiment, the force receiving structure 13 is block-shaped, the force receiving structure 13 has the abutting plane 132 on the top, the force receiving structure 13 is provided with the protrusion 131 on the side, the protrusion 131 is cylindrical, and the protrusion 131 is provided with an annular groove for hanging and limiting the elastic member 20; the force receiving structure 13 is provided with a pressing portion 133 at the end; and the elastic member 20 can be a spring, for example, a tension spring.

[0069] The following is the specific use process of the under-voltage indication device in the embodiment:

[0070] The under-voltage indication device is arranged in the operating mechanism of the circuit breaker, and when the circuit breaker product is not installed with the under-voltage release, the under-voltage indication device is in an inactivated state and does not affect the normal use of the circuit breaker. When the circuit breaker product is installed with the under-voltage release, the under-voltage indication device is used in cooperation with the under-voltage release, and the working state of the circuit breaker can be directly observed from the observation window by the naked eye through the observation window.

[0071] When the circuit breaker is in under-voltage, the under-voltage contact of the under-voltage release presses the abutting plane 132 of the force receiving structure 13, the connecting cylinder 12 rotates around the rotating shaft, and the indication structure 11 is raised upward, at this time, the second indication area B is exposed from the observation window, and the staff can see the word "under-voltage" from the observation window, and at the same time, the pressing portion 133 presses the opening half shaft 40 of the operating mechanism, so that the circuit breaker is in the opening state.

[0072] When the circuit breaker is in normal pressure, the under-voltage contact of the under-voltage release does not contact the abutting plane 132 of the force receiving structure 13, at this time, the lever rotating member 10 is reset under the action of the elastic member 20, so that the first indication area A is exposed from the observation window, and the staff can see the word "normal pressure" from the observation window.

[0073] By setting the under-voltage indication device, the under-voltage indication device can be switched between under-voltage and normal pressure, so as to directly indicate the working state of the circuit breaker, facilitate quick judgment of problems when the power is not normally cut off or other faults occur, and save maintenance time.

[0074] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. An under-voltage indicating device provided on a circuit breaker, said circuit breaker comprising a housing, said housing being provided with a viewing window, said housing being provided with an under-voltage release therein, characterized in that, The under-voltage indicating device comprises: A lever rotating member (10) is rotatably arranged in the housing, one end of the lever rotating member (10) is provided with an indicating structure (11), the other end is provided with a force receiving structure (13), the force receiving structure (13) is arranged corresponding to the under-voltage release, the indicating structure (11) has a first indicating area and a second indicating area, the lever rotating member (10) has a first state in which the first indicating area is opposite to the viewing window, and a second state in which the second indicating area is opposite to the viewing window; An elastic member (20), one end of the elastic member (20) is connected with the lever rotating member (10), the other end is used for being connected with the housing; The force receiving structure (13) can be pressed by the under-voltage release to drive the lever rotating member (10) to rotate, so that the lever rotating member (10) is switched from the first state to the second state; or the force receiving structure (13) is not pressed, the elastic member (20) makes the lever rotating member (10) rotate back to reset, and the lever rotating member (10) is switched from the second state to the first state.

2. The under-voltage indication apparatus according to claim 1, characterized by The lever rotating member (10) comprises a connecting cylinder (12), the indicating structure (11) and the force receiving structure (13) are connected on both sides of the connecting cylinder (12) respectively, and the connecting cylinder (12) is rotatably connected to the housing through a rotating shaft.

3. The under-voltage indicating device of claim 2, wherein The indicating structure (11) comprises: An arc-shaped plate, the first indicating area and the second indicating area are arranged on the outer side of the arc-shaped plate; A support part, one end of the support part is connected to the connecting cylinder (12), the other end is connected to the inner side of the arc-shaped plate, and the support part is connected with the elastic member (20).

4. The under-voltage indicating apparatus according to claim 1, wherein A groove (111) is arranged on the indicating structure (11), and one end of the elastic member (20) is hung in the groove (111).

5. The under-voltage indicating apparatus according to claim 1, wherein The under-voltage indicating device is arranged outside the operating mechanism of the circuit breaker, a through hole (134) is arranged on the force receiving structure (13) for the under-voltage release rod (32) of the under-voltage release to extend out to press the opening half shaft (40) of the operating mechanism; And / or, the under-voltage indicating device is arranged inside the operating mechanism of the circuit breaker, a pressing part (133) is arranged on the force receiving structure (13), when the force receiving structure (13) is pressed by the under-voltage release, the pressing part (133) can press the opening half shaft (40) of the operating mechanism.

6. The under-voltage indicating device of claim 5, wherein The pressing part (133) is provided with a pressing protrusion, the cross section of the pressing protrusion is semicircular, and the arc surface of the pressing protrusion is used for contacting the opening half shaft (40).

7. The under-voltage indicating apparatus according to claim 1, wherein The force receiving structure (13) comprises a pressing plate, one end of the pressing plate is connected with the lever rotating member (10), and the other end of the pressing plate is used for being arranged corresponding to the under-voltage release.

8. The under-voltage indicating apparatus according to claim 1, wherein A contact plane (132) is arranged on the force receiving structure (13), and the contact plane (132) is used for being arranged corresponding to the under-voltage release.

9. The under-voltage indicating apparatus according to claim 1, wherein A protrusion (131) is arranged on the force receiving structure (13), and one end of the protrusion (131) is connected with the elastic member (20).

10. A circuit breaker characterized by An under-voltage indication device comprising any of claims 1-9.

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