Novel reclosing circuit breaker

Abstract

The utility model discloses a novel reclosing circuit breaker, which comprises a one-way direct current motor, a transmission mechanism and a control assembly, and is characterized in that the control assembly is used for controlling the one-way direct current motor to start and stop; the side walls comprise two long side walls, the control assembly is arranged near one long side wall, and the transmission mechanism is arranged between the control assembly and the other long side wall; the transmission mechanism comprises a reduction gear set, an eccentric wheel and an output sliding block. The input end of the reduction gear set is connected with the output part of the one-way direct current motor; the output end of the reduction gear set is connected with the eccentric wheel; the eccentric wheel is rotatably arranged, the output sliding block is slidably arranged, the eccentric wheel is connected with the output sliding block to drive the sliding block to move, and the eccentric wheel acts on the output sliding block to make the output sliding block reciprocate through continuous output of the one-way direct current motor; the output sliding block is sleeved on the extending end of the handle, and the opening operation and the closing operation of the handle are realized through the reciprocating motion of the output sliding block; the utility model has the characteristics of more compact structure and miniaturization.

Description

Technical Field

[0001] The present application relates to the electrical field of low-voltage switches, and in particular to a novel reclosing circuit breaker. Background Art

[0002] With the introduction of the concept of smart grid, molded case circuit breakers in the form of reclosing have also developed rapidly in recent years. The power source of existing molded case circuit breakers in the form of reclosing in electric operation mode is basically from the AC motor, which uses the forward and reverse rotation of the AC motor to realize the opening and closing of the circuit breaker. For example, the structure disclosed in CN207925411U also uses this structure.

[0003] The advantage of AC motors is that the reduction gear is built into the motor itself, so the external transmission structure looks relatively simple; but its lifespan and transmission speed are far inferior to those of unidirectional DC motors. However, unidirectional DC motors also have a disadvantage. Unidirectional DC motors must be decelerated by a reasonable reduction gearbox (after deceleration, it acts on the operating handle of the operating mechanism), and the reduction gearbox is generally large in size. An unreasonable design will waste a lot of space inside the circuit breaker, which is not conducive to the compact design of the product.

[0004] Therefore, how to reasonably design a new type of reclosing circuit breaker with a reduction gearbox is also a direction worthy of research. Summary of the invention

[0005] In view of this, the purpose of this application is to overcome the deficiencies in the prior art and to provide a new type of reclosing circuit breaker.

[0006] The present application provides: a novel reclosing circuit breaker, which comprises a cover body, an upper cover and an operating mechanism; the cover body is fixed on a base, and the upper cover is fixed on the cover body; the cover body comprises a partition wall and a side wall surrounding the partition wall; the operating mechanism is located below the partition wall, and the extended end of the handle of the operating mechanism penetrates the partition wall; wherein, it also comprises a unidirectional DC motor, a transmission mechanism and a control component, and the control component is used to control the start and stop of the unidirectional DC motor; the side wall comprises two long side walls, the control component is arranged near one of the long side walls, and the transmission mechanism is arranged between the control component and the other long side wall; the transmission mechanism comprises a reduction gear set, an eccentric wheel and an output slider; the input end of the reduction gear set is connected to the output part of the unidirectional DC motor, and the output end of the reduction gear set is connected to the eccentric wheel; the eccentric wheel is arranged to rotate, and the output slider is arranged to slide, the eccentric wheel is connected to the output slider to drive the slider to move, and the eccentric wheel acts on the output slider to make it reciprocate through the continuous output of the unidirectional DC motor; the output slider is sleeved on the extended end of the handle, and the opening operation and closing operation of the handle are realized through the reciprocating motion of the output slider.

[0007] By adopting this structure, the problem of space occupied by components such as the reduction gear set after the use of the DC motor is fully considered. The control component is placed as close to one of the long side walls as possible, so that the remaining space in the cover body can be used to place the transmission mechanism (including components such as the reduction gear set), making full use of the space inside the shell, which is conducive to a more compact and miniaturized product structure.

[0008] In some embodiments of the present application, the transmission mechanism includes a first bracket and a second bracket, the first bracket is fixed on the second bracket, a gear installation space is formed between the two, and the reduction gear group is arranged in the gear installation space; a guide rail is fixed under the second bracket, and the output slider is slidably arranged on the guide rail; the unidirectional DC motor is fixed under the second bracket, and the output part of the unidirectional DC motor penetrates into the gear installation space.

[0009] The transmission mechanism adopts this structural arrangement, which makes the spatial layout more reasonable, which is beneficial to the arrangement of the reduction gear set and the assembly of the circuit breaker handle and the output slide block.

[0010] In some embodiments of the present application, the upper cover is provided with an indication hole, and the output slider portion extends to the bottom of the indication hole. The output slider slides to different positions to provide a mechanical indication of the opening and closing status of the circuit breaker.

[0011] Compared with the indications in other transmission forms in the prior art, this structure directly presents the indications through the output slider, and this indication structure is extremely concise and very intuitive.

[0012] In some embodiments of the present application, the output slider includes a first slider and a driving plate, the driving plate is fixed to the first slider, and the strength of the driving plate is higher than that of the first slider; the first slider is slidably set on the guide rail and is sleeved on the protruding end of the handle; a driving groove is set on the driving plate, the driving groove includes an opening driving wall and a closing driving wall, the eccentric wheel is in the driving groove, and the opening operation and closing operation of the handle are realized as the eccentric wheel touches different driving walls during rotation; an indicating part extends on the driving plate, and the indicating part extends to the bottom of the indicating hole for realizing mechanical indication.

[0013] With this structural design, since the driving plate needs to withstand the impact force from the eccentric wheel, and the first slider only slides synchronously with the sliding of the driving plate, the strength of the driving plate is set higher than the strength of the first slider, and the structure can be designed as reasonably as possible.

[0014] In some embodiments of the present application, the reduction gear set includes at least two stages of double teeth and an output gear, the small teeth of the upper stage of double teeth are meshed with the large teeth of the lower stage of double teeth, the large teeth of the first stage of double teeth are meshed with the input of the unidirectional DC motor, the small teeth of the last stage of double teeth are meshed with the output gear, and the pitch circle diameter of the output gear is larger than the pitch circle diameter of any double teeth.

[0015] By adopting this multi-pole double-tooth structure and the pitch circle diameter of the output gear being larger than the pitch circle diameter of any double-tooth, the transmission ratio can be effectively guaranteed, the response is rapid, and rapid opening and closing of the switch can be achieved.

[0016] In some embodiments of the present application, the reduction gear set includes at least two stages of double teeth and an output gear, the small tooth portion of the double teeth of the upper stage is meshed with the large tooth portion of the double teeth of the lower stage, the large tooth portion of the double teeth of the first stage is meshed with the input portion of the unidirectional DC motor, the small tooth portion of the double teeth of the last stage is meshed with the output gear, and the pitch circle diameter of the large tooth portion of the double teeth of the lower stage is larger than the pitch circle diameter of the double teeth of the upper stage.

[0017] By adopting this multi-pole double-tooth structure, and the pitch circle diameter of the large tooth part of the next-level double-tooth is larger than the pitch circle diameter of the previous-level double-tooth, the transmission ratio can be effectively guaranteed, the response is rapid, and rapid opening and closing can be achieved.

[0018] In some embodiments of the present application, an input shaft is further included, an eccentric wheel is fixed at one end of the input shaft, a handle socket is provided on the other end of the input shaft, and an exposed hole corresponding to the handle socket is provided on the upper cover; the output end is connected to the input shaft through a clutch structure; the clutch structure means that the input shaft itself is disengaged from the output end when rotating in a first direction, and the output end is in transmission connection with the input shaft when rotating in the first direction.

[0019] By adopting this structure, both manual opening and closing and electric opening and closing can be realized. When manually opening and closing the switch, the clutch structure is used to disengage the motor and other components during manual rotation (when the input shaft itself rotates in the first direction), thereby avoiding the situation where manual operation is difficult due to components such as the motor rotor.

[0020] In some embodiments of the present application, the clutch structure includes a driving finger, an elastic member and a transmission channel; the transmission channel is opened on the output end, and includes a connected stop wall and a curved wall; the driving finger is in the transmission channel, and the driving finger is slidingly arranged with the input shaft along the radial direction of the input shaft, and the elastic member is used to drive the driving finger to reset; when the input shaft rotates in a first direction, the driving finger gradually retracts into the input shaft along the curved wall to achieve the disengagement of the input shaft from the output end; when the output end rotates in the first direction, the stop wall acts on the driving finger to achieve a transmission connection with the input shaft.

[0021] With this type of clutch structure, the structure is very simple and only a very small number of parts are needed to complete the clutch structure.

[0022] In some embodiments of the present application, a slide plate and a conversion switch are further provided in the upper cover. The slide plate is located above the transmission mechanism and is slidably arranged. The slide plate is partially exposed outside the upper cover for user operation. The slide plate has a first position blocking the exposed hole and the handle socket, and a second position connecting the exposed hole and the handle socket. The conversion switch is arranged in the movement trajectory of the slide plate. The conversion switch is triggered when the slide plate is in the second position. After being triggered, the conversion switch feeds back a signal to the control component.

[0023] With this structure, the interlocking between manual operation and electric operation can be achieved by using a conversion switch.

[0024] In some embodiments of the present application, a slide plate is further provided inside the upper cover, a slide groove is provided on the transmission mechanism, a slide rail is provided on the slide plate, the slide rail and the slide groove form a sliding fit, the slide plate is partially exposed outside the upper cover for user operation, and the slide plate has a first position blocking between the exposed hole and the handle socket, and a second position connecting the exposed hole with the handle socket.

[0025] With this structure, the slide plate is slidably arranged on the transmission mechanism, so that the slide plate can be installed with the transmission structure in advance and then placed into the cover body, which is conducive to modular installation of the product.

[0026] In some embodiments of the present application, the control component also includes a position detection switch, which is arranged on the movement track of the output slider. When the circuit breaker is in a closed state or an open state, the position detection switch is triggered by the output slider to feedback the state of the circuit breaker to the control component.

[0027] With this structure, the position detection switch can be used to feedback the state of the circuit breaker to the control component, which is beneficial to the control timing design of the control component.

[0028] In some embodiments of the present application, a human-machine interaction interface is provided on the upper cover, the control component is provided with a corresponding human-machine interaction circuit board, an avoidance area is provided on the transmission mechanism, and the human-machine interaction circuit board partially extends into the avoidance area.

[0029] By adopting this structure, the reclosing circuit breaker has more functions. Extending the human-machine interaction circuit board part into the avoidance area can make the internal space of the product more compact, and promote the product to be more compact and miniaturized.

[0030] In some embodiments of the present application, a carrier slot is further provided on the upper cover, in which a carrier communication module is installed. The carrier slot is located above the control component, and an interface connected to the carrier communication module is provided on the control component.

[0031] In this way, the carrier module, control assembly, and transmission mechanism form such a relative position layout, making the structure of this reclosing circuit breaker more compact and making full use of the space of each part of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 A schematic diagram of a novel reclosing circuit breaker after removing the upper cover is shown in Example 1 of the present application;

[0034] Figure 2 A three-dimensional diagram of a novel reclosing circuit breaker according to Embodiment 1 of the present application is shown;

[0035] Figure 3 A top view of a novel reclosing circuit breaker after removing the upper cover is shown in Example 1 of the present application;

[0036] Figure 4 A schematic diagram of the structure of an upper cover in a novel reclosing circuit breaker in Example 1 of the present application is shown;

[0037] Figure 5 A schematic diagram of the structure of a novel reclosing circuit breaker without components such as a motor in Example 1 of the present application is shown;

[0038] Figure 6 A schematic diagram of the structure of the cooperation between the motor and the transmission component in a novel reclosing circuit breaker in Example 1 of the present application is shown;

[0039] Figure 7 An exploded view of the cooperation between a motor and a transmission component in a novel reclosing circuit breaker in Example 1 of the present application is shown;

[0040] Figure 8 A structural diagram of a driving board in a novel reclosing circuit breaker in Example 1 of the present application is shown;

[0041] Fig. 9 A diagram showing the position relationship between an output slider and an eccentric wheel of a novel reclosing circuit breaker in Example 1 of the present application when the circuit breaker is closed is shown;

[0042] Fig.10 A position relationship diagram of an output slider and an eccentric wheel of a novel reclosing circuit breaker in Example 1 of the present application when the circuit breaker is in an open state is shown;

[0043] Fig.11 A schematic diagram of the structure of an output gear and an input shaft in a novel reclosing circuit breaker in Example 1 of the present application is shown;

[0044] Fig.12 A schematic diagram of the clutch structure between the output gear and the input shaft in a novel reclosing circuit breaker in Example 1 of the present application is shown;

[0045] Fig.13 A schematic diagram showing a slide plate in a novel reclosing circuit breaker in embodiment 1 of the present application when the slide plate is in a first position;

[0046] Fig.14 A schematic diagram showing a slide plate in a novel reclosing circuit breaker in Example 1 of the present application is shown in the second position. DETAILED DESCRIPTION

[0047] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0048] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0049] In addition, the terms "primary" and "secondary" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "primary" and "secondary" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0050] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In the present application, unless otherwise clearly specified and limited, when a main feature is “above” or “below” a second feature, it can mean that the main feature and the second feature are in direct contact, or the main feature and the second feature are in indirect contact through an intermediate medium. Moreover, when a main feature is “above”, “above” or “above” a second feature, it can mean that the main feature is directly above or obliquely above the second feature, or simply means that the main feature is higher in level than the second feature. When a main feature is “below”, “below” or “below” a second feature, it can mean that the main feature is directly below or obliquely below the second feature, or simply means that the main feature is lower in level than the second feature. Example

[0052] like Figure 1-Figure 14 As shown, Example 1 of the present application provides a new type of reclosing circuit breaker, which is a circuit breaker with an electric operating mechanism, and the circuit breaker can be opened and closed manually or by using the electric operating mechanism.

[0053] This new type of reclosing circuit breaker includes a circuit breaker housing, a transmission mechanism 6000, a unidirectional DC motor 6001, an external handle 7000, a control component 400, a carrier communication module 8000, an operating mechanism, a contact component, an arc extinguishing component, and the like.

[0054] The circuit breaker housing includes a base 1001, a cover 1002 and an upper cover 1003. Here, the base 1001 is arranged below the cover 1002, and the base 1001 and the cover 1002 are fastened by bolts. The upper cover 1003 is arranged above the cover 1002, and the upper cover 1003 and the cover 1002 are also fastened by bolts. Of course, in addition to this, bolts can be used to fasten all three, or other fastening methods can be used. No matter which method is used, as long as the stability of the three structures can be ensured.

[0055] Here, the cover 1002 includes a partition wall 1002a and a side wall 1002b surrounding the partition wall 1002a, and the side wall 1002b and the partition wall 1002a form an upper space, and the upper space is located above the partition wall 1002a. The partition wall 1002a here does not specifically refer to a flat wall, nor does it refer to a completely closed wall. The main function of the partition wall 1002a here is to separate the upper space from the strong electric components in the base 1001 as much as possible, but there are still some reserved holes on the partition wall 1002a for wiring, or for some components to pass through, etc.

[0056] The operating mechanism is fixed on the base 1001. One end of the handle 9001 of the operating mechanism of the circuit breaker penetrates the partition wall 1002a and extends into the upper space. Here, the handle 9001 is located at one end of the upper space, that is, the extended end 9001a. By controlling the movement of the handle 9001, the opening and closing operations of the circuit breaker can be realized. Sufficient space is reserved on the partition wall 1002a for the handle 9001 to move.

[0057] Unidirectional DC motor 6001 is a type of DC motor that has only one working direction.

[0058] The control assembly 400, also called the circuit board assembly, is formed by a plurality of circuit boards and is located in the space formed by the cover 1002 and the upper cover 1003. Most of the circuit boards are located in the upper space. Here, the control assembly 400 is arranged near a long side wall 1002b1. Figure 1-5 From the perspective of the embodiment, it is arranged close to the long side wall 1002b1 on the left. In this way, there will be an installation area between the control component 400 and the other long side wall 1002b1. The control component 400 here includes communication functions, protection functions, and the start and stop of the unidirectional DC motor 6001, etc. The protection functions here include short circuit protection, overload protection, leakage protection, phase loss protection, over-temperature protection, over-voltage and under-voltage protection, etc.

[0059] The transmission mechanism 6000 is arranged in the installation area and includes a reduction gear set, an eccentric wheel 6002 and an output slider 6003 .

[0060] The output part 6001a of the unidirectional DC motor 6001, which is also the output wheel, meshes with the input end of the reduction gear set, and the output end of the reduction gear set is connected to the eccentric wheel 6002. Through the continuous output of the unidirectional DC motor 6001, the eccentric wheel 6002 can be rotated around a rotation center. The output slider 6003 is a sliding arrangement, and a crank slider mechanism is formed between the eccentric wheel 6002 and the slider. Therefore, as the eccentric wheel 6002 rotates, the output slider 6003 can be made to present a reciprocating motion, that is, the output slider 6003 switches back and forth between the first motion direction F1 and the second motion direction F2. Since the output slider 6003 is sleeved on the protruding end 9001a of the handle 9001, the reciprocating motion of the output slider 6003 can be converted into the opening and closing motion of the handle 9001. Here, when the output slider 6003 moves in the first motion direction F1, it is equivalent to driving the handle 9001 to close the switch. When the output slider 6003 moves in the second movement direction F2, it is equivalent to driving the handle 9001 to close the switch.

[0061] In order to ensure effective installation of the reduction gear set, the transmission mechanism 6000 includes a first bracket 6000a and a second bracket 6000b, wherein the first bracket 6000a is fixed on the second bracket 6000b, and a gear installation space 6000c is formed therebetween, and the reduction gear set is arranged in the gear installation space 6000c.

[0062] Two guide rails 6004 are arranged below the second bracket 6000b, and the guide rails 6004 and the second bracket 6000b are fixed. The two ends of the output slide block 6003 are sleeved on the guide rails 6004, so that the output slide block 6003 can slide along the guide rails 6004.

[0063] An indication hole 1003c is provided on the upper cover 1003, and a part of the output slider 6003 extends to the bottom of the indication hole 1003c, and this part is the indication part 60030. In this way, by moving the output slider 6003 and presenting different positions on the indication hole 1003c, the mechanical indication of the opening and closing state of the circuit breaker can be realized. The indication here can be a pattern, color, text or ON, OFF.

[0064] There are many ways to form the output slider 6003, which can be a completely integrally formed structure. A split structure can also be used. Taking the split structure as an example, the output slider 6003 includes a first slider 6003a and a drive plate 6003b. The strength of the drive plate 6003b here is higher than that of the first slider 6003a. For example, the first slider 6003a is a plastic part, and the drive plate 6003b can be a metal part (such as an iron plate, a steel plate, etc.). Screws can be used to fasten the two. The guide rail 6004 is slidably matched with the first slider 6003a, and the indicating function of the output slider 6003 and the transmission between the eccentric wheel 6002 are completed by the drive plate 6003b. A driving groove 6003c is provided on the driving plate 6003b, wherein the driving groove 6003c consists of two parts, one part is the opening driving wall 6003c1, and the other part is the closing driving wall 6003c2. The eccentric wheel 6002 is always in the driving groove 6003c during the rotation process. When the eccentric wheel 6002 is pressed on the closing driving wall 6003c2, it will push the driving plate 6003b to slide along the first movement direction F1. As the driving plate 6003b slides to the end position of the first movement direction F1, the eccentric wheel 6002 also continues to rotate. When the driving plate 6003b is at the end position of the first movement direction F1, the eccentric wheel 6002 has also moved to the vicinity of the gate driving wall 6003c1. At this time, the eccentric wheel 6002 will push the gate driving wall 6003c1, so that the driving plate 6003b slides along the second movement direction F2 until the driving plate 6003b slides to the end position of the second movement direction F2, thereby realizing reciprocating motion.

[0065] The unidirectional DC motor 6001 is fixed below the second bracket 6000b, and the output portion 6001a of the unidirectional DC motor 6001 penetrates into the gear installation space 6000c. Here, the unidirectional DC motor 6001 is fastened with screws, but other methods can also be used to fix it, as long as the stable setting of the unidirectional DC motor 6001 can be guaranteed.

[0066] There are many choices of gears in the reduction gear set, and a multi-pole double-tooth structure is a relatively reliable choice. The specific multi-pole double-tooth structure reduction gear set includes at least two levels of double-tooth and an output gear 6007 (that is, the output end of the reduction gear set), which is a three-pole double-tooth here. The large tooth portion of the first-stage double-tooth 6005 is meshed with the input portion of the unidirectional DC motor 6001. Then the meshing relationship between the double-tooth of each pole satisfies that the small tooth portion of the upper-stage double-tooth is meshed with the large tooth portion of the next-stage double-tooth. The small tooth portion of the third-stage double-tooth 6006 is meshed with the output gear 6007, and the output gear 6007 is connected to the eccentric wheel 6002 for transmission. In this way, the output of the unidirectional DC motor 6001 can be decelerated and converted to a suitable speed to realize the opening and closing of the circuit breaker. Here, the pitch circle diameter of the output gear 6007 is greater than the pitch circle diameter of any double-tooth (that is, the pitch circle diameter of the large tooth portion of any double-tooth). The double teeth of each pole also satisfy that the pitch circle diameter of the large tooth portion of the double teeth of the next stage is larger than the pitch circle diameter of the double teeth of the previous stage.

[0067] Here, the transmission connection between the output gear 6007 and the eccentric wheel 6002 is completed by the input shaft 6008, and the input shaft 6008 can also be used for manual operation. Here, the eccentric wheel 6002 is fixed to the lower end of the input shaft 6008, and the upper end of the input shaft 6008 has a handle insertion hole 6008a. One end of the input shaft 6008 with the handle insertion hole 6008a is exposed above the first bracket 6000a, and an exposed hole 1003b is opened at the corresponding position of the upper cover 1003. By inserting the external handle 7000 through the exposed hole 1003b into the handle insertion hole 6008a, the input shaft 6008 can be driven to rotate through the external handle 7000, causing the rotation of the eccentric wheel 6002. The input shaft 6008 and the output gear 6007 are connected by a clutch structure, that is, when the input shaft 6008 rotates along the first direction S1 (it can also be said to rotate clockwise), the input shaft 6008 is disengaged from the output gear 6007, and the rotation of the input shaft 6008 does not cause the rotation of the output gear 6007. When the output gear 6007 rotates along the first direction S1 (it can also be said to rotate clockwise), it can form a transmission with the input shaft 6008.

[0068] There are many options for this clutch structure. The following is an example of a relatively simple implementation. The clutch structure includes a driving finger 6009a, an elastic member 6009b and a transmission channel 6009c. The transmission channel 6009c is a hole formed on the output gear 6007. The hole wall of the hole includes a stop wall 6009c1 and a curved wall 6009c2 connected to each other. The curved wall 6009c2 is located in the clockwise direction of the stop wall 6009c1. The driving finger 6009a is inserted into the input shaft 6008 and can slide in the radial direction of the input shaft 6008. The elastic member 6009b is a spring structure, which stores energy when the driving finger 6009a retracts into the input shaft 6008. The driving finger 6009a is outside the input shaft 6008. When the input shaft 6008 rotates in the first direction S1 (clockwise), the driving finger 6009a will slide along the arc wall 6009c2 and gradually retract into the input shaft 6008. In this way, since there is no force transmission relationship between the driving finger 6009a and the transmission channel 6009c in the radial direction, the input shaft 6008 is disengaged from the output gear 6007 (here, the disengagement refers to the lack of force transmission between the two). On the contrary, when the output gear 6007 rotates in the first direction S1 (clockwise), since the stop wall 6009c1 acts on the driving finger 6009a, the two are stuck in the radial direction, that is, there is a force transmission relationship between the driving finger 6009a and the transmission channel 6009c in the radial direction, so the output gear 6007 will drive the input shaft 6008 to rotate.

[0069] When manual operation is not required, the exposed hole 1003b can be covered by the slide plate 10037. The specific structure is as follows: the slide plate 10037 is slidably arranged inside the upper cover 1003. Here, the slide plate 10037 forms a sliding fit with the slide groove 6000a1 above the first bracket 6000a through its own slide rail 10037a. A part of the slide plate 10037 extends out of the upper cover 1003 for user operation. Here, the slide plate 10037 has two positions, a first position and a second position. When in the first position, the exposed hole 1003b is covered and the handle insertion hole 6008a is connected. When in the second position, the exposed hole 1003b is connected to the handle insertion hole 6008a.

[0070] This kind of slide plate 10037 can also be used to realize the interlocking between manual operation and electric operation. In order to realize the interlocking, a conversion switch 10038 is also provided in the motion track of the slide plate 10037. The conversion switch 10038 here is a micro switch. Of course, in addition to the micro switch, a Hall element, a photoelectric sensor switch, an infrared sensor switch, etc. can also be used, as long as the position detection can be performed. The conversion switch 10038 here is electrically connected to the control component 400. When the slide plate 10037 is in the second position, the conversion switch 10038 can be triggered. After the conversion switch 10038 is triggered, a signal is fed back to the control component 400, and the control component 400 can prohibit the closing operation of the motor, thereby achieving the effect of interlocking.

[0071] In order to enable the control component 400 to obtain feedback on the circuit breaker state, the control component 400 also includes a position detection switch 401, which is arranged on the motion track of the output slider 6003, and in this embodiment, it is located near the left guide rail 6004. When the output slider 6003 moves to a certain position in the first motion direction F1, the position detection switch 401 will be triggered. The certain position here means that the output slider 6003 is sufficient to drive the handle 9001 to achieve the closing operation, and the control component 400 can obtain the signal feedback of the circuit breaker closing. Similarly, it can also be changed to the trigger feedback of the opening signal. In this embodiment, the position detection switch 401 adopts a micro switch. Of course, in addition to this, Hall elements, photoelectric induction switches, infrared induction switches, etc. can also be used. The circuit breaker closing signal and the circuit breaker opening signal here can be used as the control component 400 to determine whether to stop the unidirectional DC motor 6001. The working state of the circuit breaker can also be fed back to the external host computer, PC, etc. through the communication module.

[0072] The control assembly 400 includes a human-machine interaction circuit board 402, and a human-machine interaction interface 4000a is arranged on the upper cover 1003 at a position corresponding to the human-machine interaction circuit board 402. The human-machine interaction circuit board 402 here includes a display screen, buttons, etc., through which the user can understand the parameter information of the circuit breaker and set parameters. The first bracket 6000a has an avoidance area 6000a0, and the human-machine interaction circuit board 402 can partially extend into the avoidance area 6000a0.

[0073] The upper cover 1003 also has a carrier slot 10036, and the carrier communication module 8000 is plugged into the carrier slot 10036. Here, the carrier slot 10036 is located above the control component 400. The carrier communication module 8000 can be electrically connected to the control component 400 through the interface on the control component 400.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

[0075] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A novel reclosing circuit breaker, comprising a cover body, an upper cover and an operating mechanism; the cover body is fixed on a base, and the upper cover is fixed on the cover body; the cover body comprises a partition wall and a side wall surrounding the partition wall; the operating mechanism is located below the partition wall, and the extended end of the handle of the operating mechanism penetrates the partition wall; the characteristics are: It also includes a unidirectional DC motor, a transmission mechanism and a control component, the control component is used to control the start and stop of the unidirectional DC motor; the side wall includes two long side walls, the control component is arranged near one of the long side walls, and the transmission mechanism is arranged between the control component and the other long side wall; the transmission mechanism includes a reduction gear set, an eccentric wheel and an output slider; the input end of the reduction gear set is connected to the output part of the unidirectional DC motor, and the output end of the reduction gear set is connected to the eccentric wheel; the eccentric wheel is arranged to rotate, and the output slider is arranged to slide, the eccentric wheel is connected to the output slider to drive the slider to move, and the eccentric wheel acts on the output slider to make it reciprocate through the continuous output of the unidirectional DC motor; the output slider is sleeved on the protruding end of the handle, and the opening and closing operations of the handle are realized through the reciprocating motion of the output slider.

2. A novel reclosing circuit breaker according to claim 1, characterized in that: The transmission mechanism includes a first bracket and a second bracket, the first bracket is fixed on the second bracket, a gear installation space is formed between the two, and the reduction gear set is arranged in the gear installation space; a guide rail is fixed below the second bracket, and the output slider is slidably arranged on the guide rail; the unidirectional DC motor is fixed below the second bracket, and the output part of the unidirectional DC motor penetrates into the gear installation space.

3. A novel reclosing circuit breaker according to claim 2, characterized in that: The upper cover is provided with an indication hole, and the output slide block part extends to the bottom of the indication hole. The output slide block slides to different positions to present a mechanical indication of the opening and closing state of the circuit breaker.

4. A novel reclosing circuit breaker according to claim 3, characterized in that: The output slider includes a first slider and a driving plate, the driving plate is fixed to the first slider, and the strength of the driving plate is higher than that of the first slider; the first slider is slidably arranged on the guide rail and is sleeved on the protruding end of the handle; a driving groove is arranged on the driving plate, the driving groove includes an opening driving wall and a closing driving wall, the eccentric wheel is in the driving groove, and the opening operation and closing operation of the handle are realized as the eccentric wheel touches different driving walls during rotation; an indicating part extends from the driving plate, and the indicating part extends to the bottom of the indicating hole for realizing mechanical indication.

5. A novel reclosing circuit breaker according to claim 1, characterized in that: The reduction gear set comprises at least two stages of duplex teeth and an output gear, the small teeth of the upper stage of duplex teeth mesh with the large teeth of the lower stage of duplex teeth, the large teeth of the first stage of duplex teeth mesh with the input part of the unidirectional DC motor, the small teeth of the last stage of duplex teeth mesh with the output gear, and the pitch circle diameter of the output gear is greater than the pitch circle diameter of any duplex teeth; Or, the reduction gear set includes at least two stages of double teeth and an output gear, the small tooth portion of the double teeth of the upper stage is meshed with the large tooth portion of the double teeth of the lower stage, the large tooth portion of the double teeth of the first stage is meshed with the input portion of the unidirectional DC motor, the small tooth portion of the double teeth of the last stage is meshed with the output gear, and the pitch circle diameter of the large tooth portion of the double teeth of the lower stage is larger than the pitch circle diameter of the double teeth of the upper stage.

6. A novel reclosing circuit breaker according to claim 1, characterized in that: It also includes an input shaft, an eccentric wheel is fixed at one end of the input shaft, a handle socket is opened on the other end of the input shaft, and an exposed hole corresponding to the handle socket is opened on the upper cover; the output end and the input shaft are connected through a clutch structure; the clutch structure means that when the input shaft itself rotates along the first direction, it disengages from the output end, and when the output end rotates along the first direction, it is in transmission connection with the input shaft.

7. A novel reclosing circuit breaker according to claim 6, characterized in that: The clutch structure includes a driving finger, an elastic member and a transmission channel; the transmission channel is provided on the output end and includes a stop wall and an arc surface wall connected to each other; The driving finger is in the transmission channel, and the driving finger is slidably arranged with the input shaft along the radial direction of the input shaft, and the elastic member is used to drive the driving finger to reset; when the input shaft rotates in a first direction, the driving finger gradually retracts into the input shaft along the arc wall to achieve the disengagement of the input shaft from the output end; when the output end rotates in the first direction, the stop wall acts on the driving finger to achieve the transmission connection between the input shaft and the output end.

8. A novel reclosing circuit breaker according to claim 6, characterized in that: The upper cover is also provided with a slide plate and a conversion switch. The slide plate is located above the transmission mechanism and is slidably arranged. The slide plate is partially exposed outside the upper cover for user operation. The slide plate has a first position where it is blocked between the exposed hole and the handle insertion hole, and a second position where the exposed hole is connected to the handle insertion hole. The conversion switch is arranged in the movement track of the slide plate. When the slide plate is in the second position, the conversion switch is triggered. After being triggered, the conversion switch feeds back a signal to the control component. Alternatively, a slide plate is further provided inside the upper cover, a slide groove is provided on the transmission mechanism, a slide rail is provided on the slide plate, the slide rail and the slide groove form a sliding fit, the slide plate is partially exposed outside the upper cover for user operation, and the slide plate has a first position blocking between the exposed hole and the handle socket, and a second position connecting the exposed hole with the handle socket.

9. A novel reclosing circuit breaker according to claim 1, characterized in that: The control component also includes a position detection switch, which is arranged on the motion track of the output slider. When the circuit breaker is in a closed state or an open state, the position detection switch is triggered by the output slider to feedback the state of the circuit breaker to the control component.

10. A novel reclosing circuit breaker according to claim 1, characterized in that: The upper cover is provided with a human-machine interaction interface, the control component is provided with a corresponding human-machine interaction circuit board, the transmission mechanism is provided with an avoidance area, and the human-machine interaction circuit board partially extends into the avoidance area; Or / and, the upper cover is further provided with a carrier slot, in which a carrier communication module is installed, the carrier slot is located above the control component, and the control component is provided with an interface connected to the carrier communication module.

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