Auxiliary switch mechanism of thin circuit breaker

Abstract

According to the auxiliary switch mechanism of the thin circuit breaker, the thin circuit breaker comprises a panel and a bottom plate, an operation shaft, an output shaft and a transmission shaft are arranged between the bottom plate and the panel, the transmission shaft is fixedly sleeved with a transmission plate, the output shaft is in linkage with the transmission plate through a connecting rod, and the auxiliary switch mechanism is arranged between the panel and the bottom plate. Comprising a connecting rod rotationally arranged on a transmission plate, the other end of the connecting rod is connected with an auxiliary switch, the auxiliary switch drives the connecting rod to trigger the auxiliary switch through rotation of the transmission plate, and by changing the structural arrangement of the auxiliary switch mechanism, a traditional auxiliary switch linked with an output shaft can be changed into linkage with the transmission plate; the linkage device is not limited by the size of the output shaft any more, the size does not need to be changed and adjusted according to the output shaft, the linkage effect is more stable, production efficiency and installation efficiency are greatly improved, production cost is saved, and standardized manufacturing is formed.

Description

Technical Field

[0001] The utility model relates to an auxiliary switch mechanism of a thin circuit breaker, belonging to the field of power components. Background Art

[0002] A high-voltage circuit breaker is a mechanical switch device that can break, close, and carry the normal current of an operating line, and can also carry, break, and close abnormal current within a specified time. It is the most important control and protection equipment in the power system. At present, the thickness dimension of the spring operating mechanism of the circuit breaker is large, which cannot meet the technical requirements of the normally pressurized sealed gas-insulated ring main unit.

[0003] This application is an improvement based on the utility model with the publication number of CN220543800U. Due to the size limitation of the thin circuit breaker, the traditional auxiliary switch is usually linked with the output shaft. Changing the size of the output shaft requires changing the size of the auxiliary switch. For example, the Chinese invention with the publication number of CN112951625A discloses a compact modular switch operating mechanism. The auxiliary switch assembly includes a third crank arm 139, a connecting rod 129, and an auxiliary switch 77. The third crank arm 139 is connected to the output end 67-1 of the output reverse shaft, driving the fourth crank arm 137 connected to the auxiliary switch. One end of the connecting rod 129 is connected to the third crank arm 139, and the other end is connected to the fourth crank arm 137. The above connections are movable connections. The auxiliary switch works to cut off the power supply by driving the connecting rod 129 to rotate through the rotation of the output reverse shaft. The auxiliary switch in this invention is directly linked with the output shaft and needs to match the size of the output shaft. It is very inconvenient to change the model and size, which affects the improvement of production and installation efficiency and is not conducive to cost reduction. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the defects and deficiencies existing in the prior art, and to provide an auxiliary switch mechanism of a thin circuit breaker.

[0005] An auxiliary switch mechanism of a thin circuit breaker, the thin circuit breaker includes a panel and a bottom plate. An operating shaft, an output shaft, and a transmission shaft are arranged between the bottom plate and the panel. A transmission plate is fixedly sleeved on the transmission shaft. The output shaft is linked with the transmission plate through a connecting rod. The auxiliary switch mechanism is arranged between the panel and the bottom plate, and includes a connecting rod rotatably arranged on the transmission plate. The other end of the connecting rod is connected with an auxiliary switch. The auxiliary switch drives the connecting rod to trigger the auxiliary switch through the rotation of the transmission plate. By changing the structural setting of the auxiliary switch mechanism, the auxiliary switch that is traditionally linked with the output shaft can be changed to be linked with the transmission plate, no longer being restricted by the size of the output shaft, and not needing to adjust the size according to the change of the output shaft. The linkage effect is more stable, which is beneficial to greatly improving the production efficiency and installation efficiency, saving production costs, and forming standardized manufacturing.

[0006] Furthermore, the auxiliary switch includes a trigger shaft, on which a trigger plate is fixedly sleeved. The connecting rod is linked with the trigger plate to trigger the auxiliary switch. When the transmission plate rotates, it drives the connecting rod to move, and then the connecting rod drives the trigger plate to rotate, thereby controlling the activation of the auxiliary switch. The transmission path is simple and stable, not prone to faults such as jamming, and the service life is extended.

[0007] Preferably, the connecting rod includes a rod body and a connecting arm arranged in a bent shape at the end of the rod body. The connecting arm is arranged vertically relative to the rod body, so that the auxiliary switch is horizontally arranged between the panel and the bottom plate. The connecting arm is bent and connected to the rod body, which can change the installation direction of the auxiliary switch, making it horizontally arranged between the panel and the bottom plate. Combining with the advantage of the thin circuit breaker having a smaller thickness, the thickness is further reduced, which is beneficial for installation in various environments.

[0008] Furthermore, a sliding groove is provided on the connecting rod, and the trigger plate is slidably connected to the sliding groove through a fixing pin. The fixing pin is slidably connected to the sliding groove to drive the triggering of the auxiliary switch.

[0009] Furthermore, the auxiliary switch includes a fixing plate, and fixing grooves are provided on the panel and the bottom plate. The two ends of the fixing plate are inserted and fixedly connected to the fixing grooves. By extending the two ends of the fixing plate, it can be inserted and installed between the panel and the bottom plate, reducing the number of fixed parts and saving costs.

[0010] Furthermore, the thin circuit breaker further includes an energy storage crank structure and a counting mechanism. The energy storage crank structure includes a driving part linked with the operating shaft, and the driving part includes a connecting column. The counting mechanism includes a pressing plate and a travel switch arranged on the panel. The other end of the pressing plate extends to abut against the outer wall of the connecting column. A groove is provided on the outer wall of the connecting column. The travel switch is triggered to open and close by the movement action generated by whether the groove is engaged with the pressing plate when the connecting column rotates. Through the linkage between the pressing plate and the groove, the pressing plate can be quickly driven, thereby driving the travel switch to quickly switch.

[0011] Preferably, the pressing plate includes a pressing part arranged vertically and abutting against the outer wall of the connecting column. The pressing plate is slidably installed on the panel, and the travel switch is triggered by the sliding action of the pressing plate.

[0012] Preferably, the travel switches are arranged side by side in a flat manner. The pressing plate further includes a connecting part arranged vertically and abutting against the travel switches. The side-by-side flat arrangement of the travel switches can match the characteristic of the thin circuit breaker having a small thickness, compress the thickness of the circuit breaker, and expand the applicable environment and conditions.

[0013] Further, a counting plate is abutted against the pressing part. The counting plate is connected with a counter installed on the panel through a spring. The counter drives the counting plate to start the counter through the movement of the pressing part, improves the position setting of the counting mechanism, and is installed at the energy storage crank structure, which is different from the traditional installation at the output shaft, avoiding the damage to the counting mechanism caused by the relatively fast rotation speed of the output shaft. It is linked with the travel switch to realize the function of counting during closing, which is simple and clear, and improves the service life and use effect.

[0014] The beneficial effects of the present utility model are as follows: By changing the structural setting of the auxiliary switch mechanism, the auxiliary switch that is traditionally linked with the output shaft can be changed to be linked with the transmission plate, no longer being restricted by the size of the output shaft, and there is no need to adjust the size according to the change of the output shaft. The linkage effect is more stable, which is beneficial to greatly improving the production efficiency and installation efficiency, saving production costs, and forming standardized manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present utility model.

[0016] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0017] Figure 2 It is a schematic diagram of the structure after removing the panel;

[0018] Figure 3 It is a schematic diagram of the structure of the present utility model from the rear view angle;

[0019] In the figure, 1, panel; 11, fixed groove; 2, bottom plate; 3, operating shaft; 4, output shaft; 5, transmission shaft; 51, transmission plate; 52, connecting rod; 53, connecting rod; 531, rod body; 532, connecting arm; 533, sliding groove; 6, auxiliary switch; 61, trigger shaft; 62, trigger plate; 63, fixing plate; 64, fixing pin; 7, energy storage crank structure; 71, driving part; 72, connecting column; 721, groove; 8, counting mechanism; 81, pressing plate; 811, pressing part; 812, counting plate; 813, connecting part; 82, travel switch; 83, counter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the purpose, technical solutions and advantages of the present utility model clearer, the following will further describe the present utility model in detail with reference to the drawings.

[0021] It should be noted that all the expressions using "first" and "second" in the embodiments of the present utility model are for distinguishing two entities or parameters with the same name but different, and it can be seen that "first" and "second" are only for the convenience of expression and should not be construed as a limitation on the embodiments of the present utility model. This will not be elaborated one by one in the subsequent embodiments.

[0022] The direction and position terms mentioned in the present utility model, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "side", etc., are only with reference to the direction or position of the attached drawings. Therefore, the direction and position terms used are for explaining and understanding the present utility model, rather than a limitation on the protection scope of the present utility model.

[0023] As Figures 1-3 shown, it is an embodiment of the auxiliary switch mechanism of a thin-type circuit breaker of the present utility model. The thin-type circuit breaker includes a panel 1 and a bottom plate 2. An operating shaft 3, an output shaft 4 and a transmission shaft 5 are provided between the bottom plate 2 and the panel 1. A transmission plate 51 is fixedly sleeved on the transmission shaft 5. The output shaft 4 is linked with the transmission plate 51 through a connecting rod 52. The auxiliary switch 6 mechanism is arranged between the panel 1 and the bottom plate 2 and includes a connecting rod 53 rotatably arranged on the transmission plate 51. The other end of the connecting rod 53 is connected with an auxiliary switch 6. The auxiliary switch 6 drives the connecting rod 53 to trigger the auxiliary switch 6 through the rotation of the transmission plate 51. By changing the structural setting of the auxiliary switch 6 mechanism, the auxiliary switch 6 that is conventionally linked with the output shaft 4 can be changed to be linked with the transmission plate 51, no longer being restricted by the size of the output shaft 4, and there is no need to adjust the size according to the change of the output shaft 4. The linkage effect is more stable, which is beneficial to greatly improving the production efficiency and installation efficiency, saving production costs, and forming standardized manufacturing.

[0024] The auxiliary switch 6 includes a trigger shaft 61. A trigger plate 62 is fixedly sleeved on the trigger shaft 61. The connecting rod 53 is linked with the trigger plate 62 for triggering the auxiliary switch 6. The rotation of the transmission plate 51 drives the connecting rod 53 to move, and the connecting rod 53 then drives the trigger plate 62 to rotate, thereby controlling the activation of the auxiliary switch 6. The transmission path is simple and stable, and it is not easy to occur situations such as malfunction jamming, etc., improving the service life.

[0025] The connecting rod 53 includes a rod body 531 and a connecting arm 532 arranged at the end of the rod body 531 and bent. The connecting arm 532 is arranged relatively vertically on the rod body 531, so that the auxiliary switch 6 is horizontally arranged between the panel 1 and the bottom plate 2. The connecting arm 532 is bent and connected with the rod body 531, which can change the installation direction of the auxiliary switch 6, making it horizontally arranged between the panel 1 and the bottom plate 2. Combining with the advantage of the smaller thickness of the thin-type circuit breaker, the thickness is further reduced, which is beneficial to installation in various environments.

[0026] The connecting rod 53 is provided with a sliding groove 533. The trigger plate 62 is slidably connected to the sliding groove 533 through a fixing pin 64. The fixing pin 64 is slidably connected to the sliding groove 533 and is used to drive the trigger auxiliary switch 6.

[0027] The auxiliary switch 6 includes a fixing plate 63. The panel 1 and the bottom plate 2 are provided with fixing grooves 11. The two ends of the fixing plate 63 are inserted and fixedly connected to the fixing grooves 11. By extending the two ends of the fixing plate 63, it can be inserted and installed between the panel 1 and the bottom plate 2, reducing the fixed parts and saving costs.

[0028] The thin circuit breaker further includes an energy storage crank structure 7 and a counting mechanism 8. The energy storage crank structure 7 includes a driving part 71 linked with the operating shaft 3. The driving part 71 includes a connecting column 72. The counting mechanism 8 includes a pressing plate 81 and a travel switch 82 arranged on the panel 1. The other end of the pressing plate 81 extends to abut against the outer wall of the connecting column 72. A groove 721 is provided on the outer wall of the connecting column 72. The travel switch 82 is triggered to open and close by the movement action generated by whether the groove 721 is engaged with the pressing plate 81 when the connecting column 72 rotates. Through the linkage between the pressing plate 81 and the groove 721, the pressing plate 81 can be quickly driven, thereby driving the travel switch 82 to quickly switch.

[0029] The pressing plate 81 includes a pressing part 811 arranged vertically and abutting against the outer wall of the connecting column 72. The pressing plate 81 is slidably installed on the panel 1, and the pressing plate 81 triggers the travel switch 82 through a sliding action.

[0030] The travel switches 82 are arranged side by side in a flat manner. The pressing plate 81 further includes a connecting part 813 arranged vertically and abutting against the travel switches 82. The side-by-side flat arrangement of the travel switches 82 can match the characteristic of the small thickness of the thin circuit breaker, compress the thickness of the circuit breaker, and expand the applicable environment and conditions.

[0031] A counting plate 812 abuts against the pressing part 811. The counting plate 812 is connected to a counter 83 installed on the panel 1 through a spring. The counter 83 is driven by the moving action of the pressing part 811 to drive the counting plate 812 to start the counter 83. The position of the counting mechanism 8 is improved and installed at the energy storage crank structure 7, which is different from the traditional installation at the output shaft 4, avoiding the damage to the counting mechanism 8 caused by the relatively fast rotation speed of the output shaft 4. It is linked with the travel switch 82 to realize the counting function during closing, which is simple and clear, and improves the service life and use effect.

[0032] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention aims to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An auxiliary switch mechanism for a thin circuit breaker, the thin circuit breaker comprising a panel and a bottom plate, an operating shaft, an output shaft and a transmission shaft are arranged between the bottom plate and the panel, a transmission plate is fixedly sleeved on the transmission shaft, the output shaft is linked to the transmission plate through a connecting rod, and is characterized in that: The auxiliary switch mechanism is arranged between the panel and the bottom plate, and includes a connecting rod rotatably arranged on the transmission plate, the other end of the connecting rod is connected to an auxiliary switch, and the auxiliary switch is triggered by the connecting rod driven by the transmission plate to rotate.

2. The auxiliary switch mechanism of the thin circuit breaker according to claim 1, characterized in that: The auxiliary switch comprises a trigger shaft, a trigger plate is fixedly sleeved on the trigger shaft, and the connecting rod is linked with the trigger plate to trigger the auxiliary switch.

3. The auxiliary switch mechanism of the thin circuit breaker according to claim 1, characterized in that: The connecting rod comprises a rod body and a connecting arm arranged at the end of the rod body in a bent shape. The connecting arm is arranged on the rod body in a relatively vertical shape, so that the auxiliary switch is arranged horizontally between the panel and the bottom plate.

4. The auxiliary switch mechanism of the thin circuit breaker according to claim 2, characterized in that: The connecting rod is provided with a sliding groove, and the trigger plate is slidably connected with the sliding groove through a fixing pin.

5. The auxiliary switch mechanism of the thin circuit breaker according to claim 1, characterized in that: The auxiliary switch comprises a fixing plate, the panel and the bottom plate are provided with fixing grooves, and the two ends of the fixing plate are plugged and fixedly connected with the fixing grooves.

6. The auxiliary switch mechanism of a thin circuit breaker according to claim 1, characterized in that: The thin circuit breaker also includes an energy storage crank structure and a counting mechanism. The energy storage crank structure includes a driving part linked to the operating shaft, the driving part includes a connecting column, and the counting mechanism includes a push plate and a travel switch arranged on the panel. The other end of the push plate extends to the connecting column and abuts against its outer wall. A groove is provided on the outer wall of the connecting column. The travel switch triggers the opening and closing of the travel switch by rotating the connecting column to make the groove and the push plate engage and generate a moving action.

7. The auxiliary switch mechanism of the thin circuit breaker according to claim 6, characterized in that: The pressing plate comprises a vertically arranged pressing portion abutting against the outer wall of the connecting column, and the pressing plate is slidably mounted on the panel.

8. The auxiliary switch mechanism of a thin circuit breaker according to claim 7, characterized in that: The travel switches are arranged in parallel and laid flat, and the push plate also includes a vertical connecting portion abutting against the travel switches.

9. The auxiliary switch mechanism of a thin circuit breaker according to claim 7, characterized in that: The pressing part is in contact with a counting plate, and the counting plate is connected to a counter installed on the panel through a spring. The counter drives the counting plate to start the counter through the moving action of the pressing part.

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