Circuit breaker fault type display device and circuit breaker

Abstract

The utility model discloses a circuit breaker fault type display device and a circuit breaker, and the device comprises a traction rod, a lock catch, a lock catch torsion spring, a push rod spring, a push rod, an installation support, a tripping indication plate, an instantaneous tripping indication plate and a small cover, the small cover is provided with a display window, and the traction rod is radially provided with a shifting plate and a hasp. The push rod is vertically installed above the shifting plate and can lock the instantaneous tripping indicator plate, the tripping indicator plate and the instantaneous tripping indicator plate are installed on the installation support in a sliding mode, the lock catch rotates around the lock catch shaft, the shifting rod can be used for shifting the tripping indicator plate, and the hasp and the lock catch are interlocked when no fault exists. When an overload delay fault occurs, the tripping indicator board slides outwards and displays different marks on the display window, and when a short-circuit transient fault occurs, the push rod unlocks the transient tripping indicator board, so that the transient tripping indicator board slides outwards under the action of the elastic piece and displays different marks on the display window. The beneficial effects of simplifying the structure and enhancing the reliability and universality are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage electrical components, and particularly to a display device for the fault type of a molded case circuit breaker and a circuit breaker. Background Art

[0002] A molded case circuit breaker is a protection switch. As a protection electrical appliance, when a fault current appears in the circuit, the circuit breaker will perform corresponding protection according to the settings, cut off the circuit, and protect the safety of other electrical equipment and personnel. In a molded case circuit breaker, the thermal magnetic release triggers corresponding protection according to the abnormal current in the circuit, releases the latch, and drives the operating mechanism to act to cut off the circuit, and the device is called a release. Most of the molded case circuit breakers on the market currently adopt thermal magnetic two-stage protection. According to the current situation in the main circuit, when operating normally, it carries the main circuit current and does not trigger thermal magnetic protection; when the main circuit current is overloaded, after a period of time according to the magnitude of the overloaded current, thermal protection is triggered, causing the circuit breaker to trip and cut off the overloaded current in the main circuit; when a short-circuit current appears in the main circuit, magnetic protection is immediately triggered, causing the circuit breaker to trip and cut off the short-circuit current in the main circuit. Most of the molded case circuit breakers on the market currently can judge whether the molded case circuit breaker is normally switched on and off or tripped through the position of the mechanism handle, but cannot judge whether the trip is a thermal protection trip or a magnetic protection trip.

[0003] Moreover, the market demand for molded case circuit breakers is more diversified, and customers need to know whether an overloaded current or a short-circuit current appears in the main circuit. Based on this need, there are also corresponding solutions in the prior art. For example, two traction rods and two latches are set. According to different fault types, different traction rods are used to unlock different latches, and the actions of different traction rods indicate different fault types. Therefore, this type of solution has a relatively complex structure. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present application provides a display device for the fault type of a circuit breaker and a circuit breaker to solve the problem that the fault type display device in the above prior art is relatively complex.

[0005] To achieve the above object, the present application is realized through the following technical solutions:

[0006] A circuit breaker fault type display device includes a traction rod and a release base, and also includes a push rod spring, a push rod, a latch, a latch torsion spring, a mounting bracket, a release indicator board, an instantaneous release indicator board, a small cover, and a traction rod torsion spring. The traction rod is directly or indirectly fixed to the release base through the traction rod torsion spring. The mounting bracket is also directly or indirectly fixed to the release base. The bottom of the mounting bracket is provided with a push rod hole and is provided with a first indicator board groove and a second indicator board groove in sequence from top to bottom in a direction parallel to the small cover. The small cover is provided with a display window. The release indicator board and the instantaneous release indicator board are respectively slidably installed in the second indicator board groove and the first indicator board groove of the mounting bracket and are parallel to and close to the inner wall of the small cover. An elastic member connected to the instantaneous release indicator board is provided at the bottom of the first indicator board groove. Different marks are provided on the surfaces of the release indicator board and the instantaneous release indicator board facing the small cover according to the fault type. A latch hook grid is provided on the instantaneous release indicator board. Avoidance spaces for the vertical movement of the push rod are also provided on the release indicator board and the instantaneous release indicator board. A hook-shaped feature corresponding to the latch hook grid is provided at the top of the push rod, and the instantaneous release indicator board is locked by the latch hook grid when there is no fault. The push rod is provided with a convex feature on the lower side of the mounting bracket. The push rod spring is sleeved on the push rod and is limited at both ends by the bottom surface of the mounting bracket and the convex feature. The latch rotates around a latch shaft parallel to the traction rod and is provided with a latch feature in the traction rod direction. The latch torsion spring is sleeved on the latch shaft. One end of the latch torsion spring is fixed to the release base and the other end is fixed to the latch. A buckle feature extends radially outward from the position of the traction rod corresponding to the latch. A toggle lever frame is provided at the position on the opposite side of the mounting bracket of the release indicator board, and a convex limiting feature is provided upward. An upward toggle lever is provided on the latch. The toggle lever passes through the toggle lever frame. When there is no fault, the buckle feature and the latch are interlocked. In case of an overload fault, the interlock relationship is unlocked, so that the latch rotates around the latch shaft, driving the release indicator board to slide outward and display different marks on the display window. A toggle plate extends radially outward from the position of the traction rod corresponding to the bottom of the push rod. In case of a short circuit fault, the toggle plate pushes the push rod upward to unlock it from the instantaneous release indicator board, driving the instantaneous release indicator board to slide to the outer position under the push of the elastic member and being limited by the convex limiting feature of the lower release indicator board, so as to display different marks on the display window.

[0007] Preferably, the elastic member is an instantaneous release indicator board spring.

[0008] Preferably, the release indicator board is provided with a first color grid and a second color grid with different colors in a direction perpendicular to the axial direction of the traction rod facing the small cover. The instantaneous release indicator board is provided with an upper layer color grid and a color vacancy grid according to the fault type in the direction facing the small cover. The color of the upper layer color grid is the same as that of the first color grid.

[0009] Preferably, the first color cell, the second color cell, the upper color cell, and the color vacancy cell are square.

[0010] Preferably, the display window is square.

[0011] Preferably, there are two display windows arranged along the axial direction of the traction rod. When there is no fault, the first color cell covers both display windows simultaneously. The second color cell is arranged in two columns along the axial direction of the traction rod and slides under the two display windows during an overload fault. The upper color cell and the color vacancy cell are arranged in a 2x2 cross pattern. One column of the upper color cell and the color vacancy cell of the far elastic member is located under the two display windows when there is no fault, and one column of the upper color cell and the color vacancy cell of the near elastic member slides under the two display windows during a short - circuit fault.

[0012] Preferably, the latch shaft is integrated with the latch.

[0013] Preferably, a top rod parallel to the traction rod is further provided at the bottom of the push rod. The top rod is located on the dial plate of the traction rod, and when the top rod is pushed upward by the dial plate, it drives the push rod to move upward.

[0014] Preferably, the mounting bracket is mounted on the mounting bracket, and the mounting bracket is mounted on the release base.

[0015] Based on the same inventive concept, the present application also discloses a circuit breaker, including a panel, and further including the above - mentioned circuit breaker fault type display device, and the small cover is arranged on the panel.

[0016] Compared with the prior art, the beneficial effects of this solution are as follows: The circuit breaker fault type display device of this solution is linked with the latch and the traction rod on the release, and can accurately indicate the overload long - time protection tripping or short - circuit instantaneous protection tripping. The structure is simple and compact, and the action is reliable. It can be slightly adjusted to adapt to different frame - size molded case circuit breakers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three - dimensional structure schematic diagram of an embodiment of the present application when there is no fault;

[0018] Figure 2 It is a three - dimensional structure schematic diagram of an embodiment of the present application when there is a fault;

[0019] Figure 3 It is a top - view schematic diagram of an embodiment of the present application when the fault is displayed;

[0020] Figure 4 It is a schematic diagram of the linkage of the latch, the push rod, and the traction rod in an embodiment of the present application;

[0021] Figure 5 It is an enlarged three - dimensional structure schematic diagram of an embodiment of the present application when there is a fault;

[0022] Figure 6 Schematic diagram of the three-dimensional structure around the latch, push rod, and draw rod according to an embodiment of the present application;

[0023] Figure 7 Schematic diagram of the three-dimensional structure of a certain perspective of the associated panel according to an embodiment of the present application;

[0024] Among them, 1 - latch, 11 - latch shaft, 12 - lever, 13 - latch feature, 2 - tripping indicator board, 21 - convex limit feature, 22 - first color grid, 23 - second color grid, 24 - lever frame, 3 - instantaneous tripping indicator board, 31 - upper color grid, 32 - color vacancy grid, 33 - locking hook grid, 4 - instantaneous tripping indicator board spring, 5 - push rod spring, 6 - push rod, 61 - outward convex feature, 62 - hook feature, 63 - ejector rod, 7 - mounting bracket, 71 - first indicator board groove, 72 - second indicator board groove, 81 - tripping device base, 82 - mounting bracket, 9 - draw rod, 91 - buckling feature, 92 - dial, 101 - draw rod torsion spring, 102 - latch torsion spring, 103 - draw rod shaft, 104 - panel, 1041 - small cover, 10411 - display window. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] This embodiment provides a technical solution: A circuit breaker fault type display device disclosed in this solution includes a latch 1, a latch torsion spring 102, a tripping indicator board 2, an instantaneous tripping indicator board 3, a push rod spring 5, a push rod 6, a mounting bracket 7, a small cover 1041, a draw rod 9, a draw rod torsion spring 101, and a tripping device base 81.

[0027] The draw rod 9 is directly or indirectly fixed on the tripping device base 81 through the draw rod torsion spring 101. Regarding the fixation of the draw rod 9, in this embodiment, the inner side of the draw rod 9 further includes a draw rod shaft 103 with both ends extending beyond the draw rod 9. The draw rod 9 is installed in two draw rod shaft holes of the tripping device base 81 through the draw rod shaft 103. The draw rod 9 is fixed on the tripping device base 81 through the draw rod torsion spring 101. One end of the draw rod torsion spring 101 is fixed on the draw rod 9, and the other end is fixed on the tripping device base 81. The draw rod torsion spring 101 can make the draw rod 9 return to its original position after rotation. Other methods can also be used to fix the draw rod 9.

[0028] The installation bracket 7 is also directly or indirectly fixed on the release base 81. A push rod hole is formed at the bottom of the installation bracket 7, and a first indicating plate groove 71 and a second indicating plate groove 72 are successively formed from top to bottom in a direction parallel to the small cover 1041. The installation bracket 7 provides support and installation positions for the release indicating plate 2, the instantaneous release indicating plate 3, the instantaneous release indicating plate spring 4, the push rod spring 5, and the push rod 6. The fixed bracket 7 can be directly installed on the release base 81. To increase versatility, an installation bracket 82 can be added. In this embodiment, the installation bracket 7 is installed on the release base 81 using the installation bracket 82, that is, the installation bracket 7 is first installed on the installation bracket 82, and then the installation bracket 82 is installed on the release base 81.

[0029] A display window 10411 is formed on the small cover 1041. The release indicating plate 2 and the instantaneous release indicating plate 3 are respectively slidably installed in the second indicating plate groove 72 and the first indicating plate groove 71 of the installation bracket 7 and are parallel to and close to the inner wall of the small cover 1041. An elastic member connected to the instantaneous release indicating plate 3 is provided at the bottom of the first indicating plate groove 71. In this embodiment, the elastic member is the instantaneous release indicating plate spring 4. The instantaneous release indicating plate spring 4 provides power for the movement of the instantaneous release indicating plate 3, and other elastic members such as small air springs can also be used.

[0030] The surfaces of the release indicating plate 2 and the instantaneous release indicating plate 3 facing the small cover 1041 are provided with different marks according to the fault types. A locking hook grid 33 is provided on the instantaneous release indicating plate 3. Avoidance spaces for the vertical movement of the push rod 6 are also formed on the release indicating plate 2 and the instantaneous release indicating plate 3. When a short-circuit instantaneous action occurs, the traction rod 9 pushes the push rod 6 to unlock the instantaneous release indicating plate 3, so that the indication is converted to instantaneous protection. A hook-shaped feature 62 corresponding to the locking hook grid 33 is provided at the top of the push rod 6, and the instantaneous release indicating plate 3 is locked by the locking hook grid 33 when there is no fault. A slope facing the opposite side of the locking hook grid 33 is also provided on the back of the hook-shaped feature 62. When reclosing, the convex limiting feature 21 of the release indicating plate 2 pushes the instantaneous release indicating plate 3, and the opposite side of the locking hook grid 33 of the instantaneous release indicating plate 3 pushes this slope to lift the push rod 6, so as to lock the instantaneous release indicating plate 3 again. An outward convex feature 61 is provided on the lower side of the push rod 6 in the installation bracket 7. The push rod spring 5 is sleeved on the push rod 6 and is limited at both ends by the bottom surface of the installation bracket 7 and the outward convex feature 61. The push rod spring 5 provides power for the push rod 6 to reset.

[0031] In this embodiment, a ejector rod 6 is further provided with a ejector pin 63 parallel to the towing bar 9 at the bottom. The ejector pin 63 is located on the deflector plate 92 of the towing bar 9. There is a certain gap between the bottom of the ejector rod 6 and the deflector plate 92 to prevent the deflector plate 92 from misoperating on the bottom of the ejector rod 6 during delayed tripping. During instantaneous tripping, the ejector pin 63 is pushed upward by the deflector plate 92 and then drives the ejector rod 6 to move upward.

[0032] The latch 1 rotates around a latch shaft 11 parallel to the towing bar 9 and is provided with a latch feature 13 in the direction of the towing bar 9. The latch torsion spring 102 is sleeved on the latch shaft 11. One end of the latch torsion spring 102 is fixed on the release base 81 and the other end is fixed on the latch 1. The latch 1 is a component that unlocks the plastic latch unlocking mechanism on the unlocking push mechanism during a fault and causes the mechanism to trip. A buckle feature 91 extends radially outward from the towing bar 9 at a position corresponding to the latch 1.

[0033] In this embodiment, the latch shaft 11 and the latch 1 are integrated, or the latch shaft and other forms can be separately provided. In this embodiment, two longitudinal latch shaft pressing platforms and a transverse latch supporting platform are provided outside the wall of the release base 81. The latch shaft 11 is installed under the arc feature of the latch shaft pressing platform, and the latch 1 is installed above the latch supporting platform and is supported by the latch supporting platform.

[0034] The trip indicator plate 2 is provided with a lever frame 24 at a position opposite to the mounting bracket 7 and is provided with a convex limit feature 21 upward. In this embodiment, the lever frame 24 is below an L-shaped bend. When the lever 12 is long enough, this L-shaped bend can also be not provided. The latch 1 is provided with an upward lever 12. The lever 12 passes through the lever frame 24. When there is no fault, the buckle feature 91 and the latch 1 are interlocked. During an overload fault, the interlocked relationship is unlocked, so that the latch 1 rotates around the latch shaft 11, thereby driving the trip indicator plate 2 to slide outward and display different marks on the display window 10411. A deflector plate 92 extends radially outward from the towing bar 9 at a position corresponding to the bottom of the ejector rod 6. During a short-circuit fault, the deflector plate 92 pushes the ejector rod 6 upward to unlock with the instantaneous trip indicator plate 3, thereby driving the instantaneous trip indicator plate 3 to slide to the outer position under the push of the elastic member and being limited by the convex limit feature 21 of the lower trip indicator plate 2, so as to display different marks on the display window 10411.

[0035] In this embodiment, the trip indicator board 2 is provided with a first color grid 22 and a second color grid 23 of different colors along the direction perpendicular to the axial direction of the traction rod 9 towards the small cover 1041. The instantaneous trip indicator board 3 is provided with an upper color grid 31 and a color vacancy grid 32 according to the fault type along the direction towards the small cover 1041. The color of the upper color grid 31 is the same as that of the first color grid 22. The color vacancy grid 32 is hollow and can display the color of the lower trip indicator board 2. In this embodiment, the first color grid 22, the second color grid 23, the upper color grid 31 and the color vacancy grid 32 are all square, and the display window 10411 is also square. The two matching corresponding structures here can also be other shapes such as circular.

[0036] In this embodiment, the number of the display windows 10411 is two and they are arranged along the axial direction of the traction rod 9. The first color grid 22 covers both display windows 10411 when there is no fault. The second color grid 23 is arranged in two columns along the axial direction of the traction rod 9 and slides under the two display windows 10411 during an overload fault. The upper color grid 31 and the color vacancy grid 32 are arranged in a 2x2 cross pattern. One column of the upper color grid 31 and the color vacancy grid 32 of the far elastic member is located under the two display windows 10411 when there is no fault, and one column of the upper color grid 31 and the color vacancy grid 32 of the near elastic member slides under the two display windows 10411 during a short - circuit fault. In this embodiment, the color of the first color grid 22 of the trip indicator board 1 and the upper color grid 31 of the instantaneous trip indicator board 3 is green, and the color of the second color grid 23 of the trip indicator board 1 is red. In the drawings, green is shown as light gray and red is shown as dark gray. As Figure 3 shown, the outline of the panel 104 is shown by a dotted line. Inside the dotted - line square is the display window 10411. It can be called the delay - protection observation window above and the instantaneous - protection observation window below. The dotted - line straight line is the boundary of the small cover 1041. When there is no fault, both are green. Under an overload fault, the upper one is red and the lower one is green. Under a short - circuit fault, the upper one is green and the lower one is red. The color setting can be determined according to the customer's needs. The upper color grid 22 and the color vacancy grid 32 on the instantaneous trip indicator board 3 can also be arranged in a 2x2 cross pattern rotated 90 degrees.

[0037] When the overload long - delay protection trips, the traction rod 9 unlocks the lock catch 1. The lock catch 1 drives the trip indicator board 2 to slide away from the mounting bracket 7 under the action of the lock catch torsion spring 102, so that the display window 10411 of the observation window shows thermal - protection trip, that is, when the switch protects and trips, the delay - protection observation window changes from green to red.

[0038] When the short-circuit instantaneous protection trips, the drawbar 9 unlocks the latch 1, and the latch 1 drives the trip indicator board 2 to move. At the same time, the drawbar 9 pushes the push rod 6 to move, and the push rod 6 unlocks the instantaneous trip indicator board 3. The instantaneous trip indicator board 3 moves under the action of the instantaneous trip indicator board spring 4, so that the display window 10411 of the observation window shows magnetic protection trip. That is, when the switch instantaneous protection trips, the display window of the time-delay protection observation window changes from red to green, and the display window of the instantaneous protection observation window changes from green to red.

[0039] When the mechanism recloses, the handle pushes the latch 1, the latch 1 drives the trip indicator board 2, and the trip indicator board 2 pushes the instantaneous trip indicator board 3 to reset. After the instantaneous trip indicator board 3 resets, the push rod 6 locks the instantaneous trip indicator board 3, and it returns to the non-tripped state.

[0040] Based on the same inventive concept, the present application also discloses an embodiment of a circuit breaker, including a panel 104 and the aforementioned circuit breaker fault type display device, and the small cover 1041 is arranged on the panel 104.

[0041] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present application. In addition, when terms such as "first" and "second" appear, they are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] The above is only a preferred specific implementation manner of the present solution, but the protection scope required by the present solution is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present application, makes equivalent substitutions or changes, and should be covered within the protection scope of the present application.

Claims

1. A circuit breaker fault type display device, comprising a traction rod (9) and a release base (81), characterized in that: It also includes a push rod spring (5), a push rod (6), a latch (1), a latch torsion spring (102), a mounting bracket (7), a tripping indicator board (2), an instantaneous tripping indicator board (3), a small cover (1041), and a draw rod torsion spring (101). The draw rod (9) is directly or indirectly fixed to the release base (81) through the draw rod torsion spring (101). The mounting bracket (7) is also directly or indirectly fixed to the release base (81). A push rod hole is provided at the bottom of the mounting bracket (7), and a first indicator board groove (71) and a second indicator board groove (72) are successively provided from top to bottom in a direction parallel to the small cover (1041). A display window (10411) is provided on the small cover (1041). The tripping indicator board (2) and the instantaneous tripping indicator board (3) are respectively slidably installed in the second indicator board groove (72) and the first indicator board groove (71) of the mounting bracket (7) and are parallel to and close to the inner wall of the small cover (1041). An elastic member connected to the instantaneous tripping indicator board (3) is provided at the bottom of the first indicator board groove (71). Different marks are provided on the surfaces of the tripping indicator board (2) and the instantaneous tripping indicator board (3) facing the small cover (1041) according to the fault type. A locking hook grid (33) is provided on the instantaneous tripping indicator board (3). Avoidance spaces for the vertical movement of the push rod (6) are also provided on the tripping indicator board (2) and the instantaneous tripping indicator board (3). A hook-shaped feature (62) corresponding to the locking hook grid (33) is provided at the top of the push rod (6), and the instantaneous tripping indicator board (3) is locked by the locking hook grid (33) in the non-fault state. An outward convex feature (61) is provided on the lower side of the push rod (6) in the mounting bracket (7). The push rod spring (5) is sleeved on the push rod (6) and is limited at both ends by the bottom surface of the mounting bracket (7) and the outward convex feature (61). The latch (1) rotates around a latch shaft (11) parallel to the draw rod (9), and a latch feature (13) is provided in the direction of the draw rod (9). The latch torsion spring (102) is sleeved on the latch shaft (11). One end of the latch torsion spring (102) is fixed to the release base (81), and the other end is fixed to the latch (1). A buckle feature (91) extends radially outward at a position on the draw rod (9) corresponding to the latch (1). A toggle rod frame (24) is provided at a position on the opposite side of the mounting bracket (7) of the tripping indicator board (2), and a convex limiting feature (21) is provided upward. An upward toggle rod (12) is provided on the latch (1). The toggle rod (12) passes through the toggle rod frame (24). In the non-fault state, the buckle feature (91) and the latch (1) are interlocked. In the case of an overload fault, the interlocked relationship is unlocked, so that the latch (1) rotates around the latch shaft (11), thereby driving the tripping indicator board (2) to slide outward and display different marks on the display window (10411). A toggle plate (92) extends radially outward at a position on the draw rod (9) corresponding to the bottom of the push rod (6).During a short - circuit fault, the shift plate (92) pushes the push rod (6) upward to unlock it from the instantaneous tripping indicator plate (3), thereby driving the instantaneous tripping indicator plate (3) to slide to the outer position under the push of the elastic member and being limited by the convex limiting feature (21) of the lower tripping indicator plate (2), so as to display different marks on the display window (10411).

2. The circuit breaker fault type display device according to claim 1, characterized in that: The elastic member is an instantaneous tripping indicator board spring (4).

3. The circuit breaker fault type display device according to claim 1, characterized in that: The tripping indicator board (2) is provided with a first color grid (22) and a second color grid (23) with different colors in a direction towards the small cover (1041) and perpendicular to the axial direction of the traction rod (9). The instantaneous tripping indicator board (3) is provided with an upper layer color grid (31) and a color vacancy grid (32) according to the fault type in a direction towards the small cover (1041). The color of the upper layer color grid (31) is the same as that of the first color grid (22).

4. The circuit breaker fault type display device according to claim 3, characterized in that: The first color grid (22), the second color grid (23), the upper layer color grid (31) and the color vacancy grid (32) are square.

5. The circuit breaker fault type display device according to claim 4, characterized in that: The display window (10411) is square.

6. The circuit breaker fault type display device according to claim 5, characterized in that: The number of the display windows (10411) is two and they are arranged along the axial direction of the traction rod (9). When there is no fault, the first color grid (22) covers both display windows (10411) at the same time. The second color grid (23) is arranged in two columns along the axial direction of the traction rod (9) and slides under the two display windows (10411) during an overload fault. The upper layer color grid (31) and the color vacancy grid (32) are arranged in a 2x2 cross pattern. The column of the upper layer color grid (31) and the color vacancy grid (32) far from the elastic member is located under the two display windows (10411) when there is no fault. The column of the upper layer color grid (31) and the color vacancy grid (32) close to the elastic member slides under the two display windows (10411) during a short circuit fault.

7. The circuit breaker fault type display device according to claim 1, characterized in that: The latch shaft (11) and the latch (1) are integrated.

8. The circuit breaker fault type display device according to claim 7, characterized in that: The bottom of the push rod (6) is further provided with a push rod (63) parallel to the traction rod (9). The push rod (63) is located on the dial (92) of the traction rod (9). After the push rod (63) is pushed upward by the dial (92), the push rod (6) is driven to move upward.

9. The circuit breaker fault type display device according to claim 1, characterized in that: The mounting bracket (7) is mounted on the mounting bracket (82), and the mounting bracket (82) is mounted on the release base (81).

10. A circuit breaker, comprising a panel (104), characterized in that: It further includes a circuit breaker fault type display device according to any one of claims 1-9, and the small cover (1041) is arranged on the panel (104).

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