A circuit breaker assembly

Abstract

The present invention discloses a circuit breaker assembly, including: a housing, and a circuit breaking component disposed inside the housing. Among them: the circuit breaking component includes an insulating shell, a spring piece, a limiting plate, a telescopic hole, an insulating plate, a contact hole, a mounting plate, a mounting groove, a power connection hole, a contact ring and a driving component, and the limiting plate is embedded inside the insulating shell. In the present invention, through the circuit breaking component, the breaking of the stable tube can be realized. In the actual use process, no matter what kind of circuit breaker, mutual friction will occur between the power connection components. After long-term use, the gold plating layer of the electrical connection component will become thinner, further increasing the resistance of the electrical connection component. Secondly, it also increases the heat generation of the circuit. Moreover, in the subsequent use process, it is found that through the insulating plate and the insulating sleeve, stable arc extinguishing can be achieved during power-off, and the occurrence of creepage can be avoided. And by rotating the insulating plate, the electrical connection between the spring piece and the contact ring can be actively cut off.

Description

Technical Field

[0001] The present invention belongs to the technical field of circuit breakers, and specifically relates to a circuit breaker assembly. Background Art

[0002] A circuit breaker refers to a switching device that can close, carry, and interrupt the current under normal circuit conditions and can also close, carry, and interrupt the current under abnormal circuit conditions within a specified time. Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their application scope. The boundary between high and low voltages is relatively blurred. Generally, electrical appliances above 3 kV are called high-voltage electrical appliances. Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, and protect power supply lines and motors, etc. When they encounter serious overload, short circuit, undervoltage and other faults, they can automatically cut off the circuit. Its function is equivalent to the combination of a fuse switch and an over- and under-thermal relay, etc. Moreover, generally no parts need to be changed after breaking the fault current. At present, it has been widely used.

[0003] In the actual application process of existing circuit breakers, restricted by the use environment, when the circuit breaker is used for a long time, friction will occur between electrical connection components, and then a large amount of heat is easily generated, increasing the internal resistance of the electrical connection components. Subsequently, it is found in the subsequent use process that although the electrical connection components are separated from contact, creepage still occurs, and finally safety accidents occur to the circuit breaker. Summary of the Invention

[0004] The technical solution adopted by the present invention is as follows: A circuit breaker assembly includes:

[0005] A housing;

[0006] A breaking component, disposed inside the housing. Among them: The breaking component includes an insulating shell, a spring piece, a limiting plate, a telescopic hole, an insulating plate, a contact hole, a mounting plate, a mounting groove, a power connection hole, a contact ring, and a driving component. The limiting plate is embedded inside the insulating shell. The telescopic hole is opened on the outer wall of the limiting plate. The insulating plate is rotatably embedded at the inner wall edge of the insulating shell. The contact hole is opened on the outer wall of the insulating plate. The spring piece is slidably embedded inside the telescopic hole. The mounting plate is embedded inside the housing. The mounting groove is opened on the outer wall of the mounting plate. The contact ring is embedded on the inner wall of the mounting groove. The power connection hole is opened on the outer wall of the mounting plate. The spring piece and the contact ring are mutually matched. The driving component is in transmission connection with the insulating plate.

[0007] Further, the driving component includes a driven gear, a driving gear, and a handle, and the outer walls of the driven gear and the driving gear are in meshing transmission connection.

[0008] Further, the center of the bottom of the outer wall of the driven gear is fixedly arranged at the center of the top of the outer wall of the insulating plate through a rotating shaft. The handle is rotatably embedded at one side of the outer wall of the housing, and the bottom end of the handle is fixedly arranged at the center of the top of the outer wall of the driving gear through a rotating shaft.

[0009] Further, a protective shell is fixedly arranged on the outer wall of the limiting plate, and the protective shell is sleeved on the outer wall of the elastic sheet. A supporting spring is fixedly arranged on the inner wall of the protective shell, and the bottom end of the supporting spring is fixedly arranged at the top of the outer wall of the elastic sheet.

[0010] Further, guide rods are fixedly arranged at the corners of the inner wall of the housing, and one end of each guide rod penetrates to the corners of the outer wall of the insulating shell.

[0011] Further, a starting assembly is arranged on the outer wall of the housing. The starting assembly includes a pulling rod, a buckle, a limiting frame and a pressing plate. The limiting frame is fixedly arranged on both sides of the outer wall of the housing. The pressing plates are fixedly arranged at both ends of the pulling rod, and the buckle is fixedly arranged on the outer wall of the housing.

[0012] Further, both ends of the pulling rod are rotatably embedded in the inner wall of the limiting frame.

[0013] Further, insulating sleeves are embedded in the openings on both sides of the outer wall of the housing.

[0014] Further, driving rails are fixedly arranged on both sides of the inner wall of the housing, and limiting rods are slidably embedded in the inner walls of the driving rails. The top ends of the limiting rods are fixedly provided with lifting blocks, and the outer walls of the lifting blocks are attached to the outer walls of the pressing plates.

[0015] Further, the contact ring is provided with a conductive area and an insulating area. A recess is arranged in the conductive area of the contact ring, and one end of the elastic sheet is arc-shaped.

[0016] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0017] In the present invention, through the open-circuit assembly, the open-circuit treatment of the stabilizing tube can be realized. In the actual use process, no matter what kind of circuit breaker, mutual friction will occur between the power connection components. After long-term use, the gold plating layer of the electrical connection components will become thinner, further increasing the resistance of the electrical connection components. Secondly, it also increases the heat generation of the circuit. In the subsequent use process, it is found that through the insulating plate and the insulating sleeve, stable arc extinguishing can be achieved when the power is cut off, and the creepage phenomenon can be avoided. Moreover, by rotating the insulating plate, the electrical connection between the elastic sheet and the contact ring can be actively cut off. Description of the Drawings

[0018] Figure 1 is a half-sectional perspective view of a circuit breaker assembly of the present invention;

[0019] Figure 2 Is a perspective view of a circuit breaker assembly of the present invention;

[0020] Figure 3 Is a perspective view of an insulating housing of a circuit breaker assembly of the present invention;

[0021] Figure 4 Is a perspective view of a driven gear of a circuit breaker assembly of the present invention;

[0022] Figure 5 Is a perspective view of a support spring of a circuit breaker assembly of the present invention;

[0023] Figure 6 Is a perspective view of a shrapnel of a circuit breaker assembly of the present invention;

[0024] Figure 7 Is a perspective view of an insulating plate of a circuit breaker assembly of the present invention;

[0025] Figure 8 Is a perspective view of a limit of a circuit breaker assembly of the present invention;

[0026] Figure 9 Is a perspective view of a contact ring of a circuit breaker assembly of the present invention;

[0027] Figure 10 Is a schematic diagram of electrode connection of a contact ring of a circuit breaker assembly of the present invention.

[0028] Markings in the figure: 1. Outer shell; 2. Insulating housing; 3. Shrapnel; 4. Limiting plate; 5. Support spring; 6. Driving rail; 7. Guide rod; 8. Insulating sleeve; 9. Limiting rod; 10. Lifting block; 11. Driven gear; 12. Driving gear; 13. Protective housing; 14. Insulating plate; 15. Mounting plate; 16. Mounting groove; 17. Power connection hole; 18. Contact ring; 101. Handle; 102. Pulling rod; 103. Buckle; 104. Limiting frame; 105. Extrusion plate; 401. Telescopic hole; 1401. Contact hole. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] Embodiment 1

[0031] Refer to Figure 1 - Figure 10 : A circuit breaker assembly, comprising:

[0032] Housing 1;

[0033] Open - circuit component, disposed inside the housing 1. Among them: The open - circuit component includes an insulating shell 2, a spring piece 3, a limiting plate 4, a telescopic hole 401, an insulating plate 14, a contact hole 1401, a mounting plate 15, a mounting groove 16, a power - connection hole 17, a contact ring 18 and a driving component. Through the open - circuit component, the open - circuit treatment of the stable tube can be realized. In the actual use process, no matter what kind of circuit breaker, there will be mutual friction between the power - connection components. After long - term use, the gold - plating layer of the electrical connection component will become thinner, further increasing the resistance of the electrical connection component. Secondly, it also increases the heat generation of the circuit. And in the subsequent use process, it is found that through the insulating plate 14 and the insulating sleeve 8, stable arc extinguishing can be achieved when the power is cut off, and the creepage phenomenon can be avoided. And by rotating the insulating plate 14, the electrical connection between the spring piece 3 and the contact ring 18 can be actively cut off. The limiting plate 4 is embedded inside the insulating shell 2. The telescopic hole 401 is opened on the outer wall of the limiting plate 4. The insulating plate 14 is rotatably embedded at the inner - wall edge of the insulating shell 2. The contact hole 1401 is opened on the outer wall of the insulating plate 14. The spring piece 3 is slidably embedded inside the telescopic hole 401. The mounting plate 15 is embedded inside the housing 1. The mounting groove 16 is opened on the outer wall of the mounting plate 15. The contact ring 18 is embedded on the inner wall of the mounting groove 16. The power - connection hole 17 is opened on the outer wall of the mounting plate 15. The spring piece 3 and the contact ring 18 match each other. The driving component is in transmission connection with the insulating plate 14.

[0034] Refer to Figure 1 - Figure 10The driving assembly includes a driven gear 11, a driving gear 12 and a handle 101. The outer walls of the driven gear 11 and the driving gear 12 are meshed and connected with each other. Through the driving assembly, power transmission can be achieved. The bottom center of the outer wall of the driven gear 11 is fixedly arranged at the top center of the outer wall of the insulating plate 14 through a rotating shaft. The handle 101 is rotatably embedded in one side of the outer wall of the shell 1. The bottom end of the handle 101 is fixedly arranged at the top center of the outer wall of the driving gear 12 through a rotating shaft. The outer wall of the limiting plate 4 is fixedly provided with a protective shell 13. The protective shell 13 can ensure that the support spring 5 has good working stability, the spring piece 3 will not tilt, and the protective shell 13 is sleeved on the outer wall of the spring piece 3, and the inner wall of the protective shell 13 is fixedly provided with a support spring 5, and the bottom end of the support spring 5 is fixedly provided at the top of the outer wall of the spring piece 3. The support spring 5 can make the spring piece 3 stably electrically connected to the contact ring 18, and the spring piece 3 and the power end are electrically connected during actual use. The wire is connected to the outer wall of the spring piece 3 by bolts and nuts. Guide rods 7 are fixedly provided at the corners of the inner wall of the shell 1, and the guide rods 7 can realize stable movement of the insulating shell 2, and the insulating shell 2 can be moved stably during movement. After that, the air gap generated by the insulating shell 2 and the mounting plate 15 will further increase the resistance value between the spring piece 3 and the contact ring 18 to avoid arcing and creepage, and one end of the guide rod 7 penetrates the outer wall corner of the insulating shell 2, and the starting component is arranged on the outer wall of the shell 1. The starting component includes a pull rod 102, a buckle 103, a limiting frame 104 and an extrusion plate 105. The top of the buckle 103 can be rotated to facilitate continuous clamping of the pull rod 102. The limiting frame 104 is fixedly arranged on both sides of the outer wall of the shell 1, and the extrusion plate 105 is fixedly arranged on the pull rod 1 02, the buckles 103 are fixedly arranged on the outer wall of the shell 1, the two ends of the pull rod 102 are rotatably embedded in the inner wall of the limiting frame 104, the outer wall of the shell 1 is provided with insulating sleeves 8 through openings on both sides, the inner wall of the shell 1 is fixedly provided with drive rails 6 on both sides, and the inner wall of the drive rail 6 is slidably embedded with limiting rods 9, the top of the limiting rod 9 is fixedly provided with a lifting block 10, and the outer wall of the lifting block 10 is attached to the outer wall of the extrusion plate 105, the contact ring 18 is provided with a conductive area and an insulating area, the conductive area of ​​the contact ring 18 is provided with a recess, and one end of the spring piece 3 is in an arc shape.

[0035] Working principle: First, install the outer shell 1 into the electrical cabinet. Then, electrically connect the power supply cable to the contact ring 18 through the power connection hole 17, and electrically connect the power-consuming end cable to the elastic piece 3. When power connection is required, drive the pulling rod 102 so that the pressing plate 105 applies pressure to the lifting block 10, causing the limiting rod 9 to move inside the driving rail 6, making the insulating shell 2 drive the limiting plate 4 and the insulating plate 14 to move towards the mounting plate 15. Finally, make the outer wall of the insulating plate 14 fit against the mounting plate 15. Then, drive the driving gear 12 to rotate through the handle 101, and the driven gear 11 drives the outer wall of the insulating plate 14 to rotate. When the telescopic hole 401 and the contact hole 1401 are aligned with each other, the support spring 5 presses the elastic piece 3, causing one end of the elastic piece 3 to be electrically connected to the contact ring 18. After the electrical connection is completed, the pulling rod 102 fits against the buckle 103, and the buckle 103 is rotated to complete the clamping of the pulling rod 102. Subsequently, the electrical connection is completed. When there is a break in the circuit, the insulating plate 14 rotates, causing the elastic piece 3 to retract into the telescopic hole 401 to complete the circuit break. Subsequently, a gap is generated between the insulating sleeve 8 and the mounting plate 15 to ensure that no electric arc will be generated..

[0036] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A circuit breaker assembly, characterized in that, include: Housing (1); A circuit breaker assembly is arranged inside a housing (1), wherein: the circuit breaker assembly comprises an insulating shell (2), a spring sheet (3), a limiting plate (4), a telescopic hole (401), an insulating plate (14), a contact hole (1401), a mounting plate (15), a mounting groove (16), a power connection hole (17), a contact ring (18) and a drive assembly, the limiting plate (4) being embedded inside the insulating shell (2), the telescopic hole (401) being opened on the outer wall of the limiting plate (4), and the insulating plate (14) being rotatably embedded on the inner wall edge of the insulating shell (2) The contact hole (1401) is formed on the outer wall of the insulating plate (14), the spring sheet (3) is slidably embedded in the interior of the telescopic hole (401), the mounting plate (15) is embedded in the interior of the housing (1), the mounting groove (16) is formed on the outer wall of the mounting plate (15), the contact ring (18) is embedded in the inner wall of the mounting groove (16), the power connection hole (17) is formed on the outer wall of the mounting plate (15), the spring sheet (3) and the contact ring (18) match each other, and the drive assembly is drivingly connected to the insulating plate (14); Guide rods (7) are fixedly provided at the corners of the inner wall of the outer shell (1), and one end of the guide rod (7) penetrates to the corner of the outer wall of the insulating shell (2).

2. The circuit breaker assembly according to claim 1, wherein: The driving assembly comprises a driven gear (11), a driving gear (12) and a handle (101), wherein the outer walls of the driven gear (11) and the driving gear (12) are meshed with each other and are transmission-connected.

3. A circuit breaker assembly as claimed in claim 2, wherein: The center of the bottom of the outer wall of the driven gear (11) is fixedly arranged at the center of the top of the outer wall of the insulating plate (14) via a rotating shaft, the handle (101) is rotatably embedded in one side of the outer wall of the housing (1), and the bottom end of the handle (101) is fixedly arranged at the center of the top of the outer wall of the driving gear (12) via a rotating shaft.

4. A circuit breaker assembly according to claim 3, characterized in that: A protective shell (13) is fixedly provided on the outer wall of the limiting plate (4), and the protective shell (13) is sleeved on the outer wall of the spring sheet (3). A supporting spring (5) is fixedly provided on the inner wall of the protective shell (13), and the bottom end of the supporting spring (5) is fixedly provided on the top of the outer wall of the spring sheet (3).

5. A circuit breaker assembly according to claim 1, wherein: A starting assembly is arranged on the outer wall of the housing (1), and comprises a pulling rod (102), a buckle (103), a limiting frame (104) and an extrusion plate (105); the limiting frame (104) is fixedly arranged on both sides of the outer wall of the housing (1), the extrusion plate (105) is fixedly arranged at both ends of the pulling rod (102), and the buckle (103) is fixedly arranged on the outer wall of the housing (1).

6. The circuit breaker assembly according to claim 5, characterized in that: Both ends of the pulling rod (102) are rotatably embedded in the inner wall of the limiting frame (104).

7. The circuit breaker assembly according to claim 6, wherein: Insulating sleeves (8) are embedded through openings on both sides of the outer wall of the housing (1).

8. A circuit breaker assembly as claimed in claim 7, characterized in that: Drive rails (6) are fixedly provided on both sides of the inner wall of the housing (1), and a limiting rod (9) is slidably embedded in the inner wall of the drive rail (6). A lifting block (10) is fixedly provided on the top of the limiting rod (9), and the outer wall of the lifting block (10) is in contact with the outer wall of the extrusion plate (105).

9. The circuit breaker assembly according to claim 8, characterized in that: The contact ring (18) is provided with a conductive area and an insulating area. A recess is provided in the conductive area of the contact ring (18). One end of the elastic sheet (3) is arc-shaped.

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