A spring operating mechanism, an operating mechanism box and a circuit breaker

Abstract

The present invention relates to a spring operating mechanism, an operating mechanism box and a circuit breaker. The spring operating mechanism comprises: an energy storage shaft, which is driven to rotate by an energy storage motor through a transmission mechanism; a controller, which controls the output power of the energy storage motor; an energy storage crank arm, which is fixed on the energy storage shaft; a closing energy storage spring, which is connected to the energy storage crank arm, and when the energy storage shaft drives the energy storage crank arm to swing on the energy storage stroke, the closing energy storage spring is driven to deform and store energy, and the energy storage stroke has an energy storage starting position and an energy storage completion position; and also comprises: an energy storage spring, which is transmission-connected to the energy storage crank arm, and the energy storage crank arm has a front energy storage stroke and a rear release stroke corresponding to the energy storage stroke of the energy storage crank arm, in the front energy storage stroke, the energy storage spring is driven by the energy storage crank arm to deform and store energy, and in the rear release stroke, the energy storage spring is released to drive the energy storage crank arm to swing to the energy storage completion position.

Description

Technical Field

[0001] The invention relates to a spring operating mechanism, an operating mechanism box and a circuit breaker. Background Art

[0002] The spring operating mechanism is widely used due to its simple structure and reliable mechanical action. For example, the Chinese patent with the authorization announcement number CN206893469U discloses an integrated spring operating mechanism, which includes two side plates arranged at intervals, an energy storage shaft is rotatably mounted between the two side plates, an energy storage motor is arranged between the two side plates, the energy storage motor drives the energy storage shaft to rotate through a gear transmission mechanism, and the energy storage shaft drives the closing energy storage spring to stretch through a crank arm to realize closing energy storage.

[0003] In the prior art, the energy required by the closing energy storage spring of the spring operating mechanism during the energy storage process is constantly increasing, especially when the energy storage peak is reached, the power that the controller needs to output is the maximum. In order to ensure that the closing energy storage spring can complete energy storage, it is necessary to select a controller according to the peak power required by the closing energy storage spring. Since the output power of the controller is constant, the force required for energy storage in the first half of the closing energy storage spring is relatively small, and the force required for energy storage in the second half is relatively large, so the selection of a peak power controller not only leads to a large amount of energy waste in the early stage of energy storage of the closing energy storage spring, but also the selected controller has a large output power, resulting in high costs. Summary of the invention

[0004] The object of the present invention is to provide a spring operating mechanism to solve the technical problem that the spring operating mechanism in the prior art uses a peak power controller, resulting in a large amount of energy waste in the early stage of energy storage of the closing energy storage spring; the object of the present invention is also to provide an operating mechanism box to solve the technical problem that the spring operating mechanism in the prior art uses a peak power controller, resulting in a large amount of energy waste in the early stage of energy storage of the closing energy storage spring; the object of the present invention is also to provide a circuit breaker to solve the technical problem that the spring operating mechanism in the prior art uses a peak power controller, resulting in a large amount of energy waste in the early stage of energy storage of the closing energy storage spring.

[0005] To achieve the above object, the technical solution of the spring operating mechanism of the present invention is:

[0006] Spring operating mechanism, comprising:

[0007] The energy storage shaft is driven to rotate by the energy storage motor through the transmission mechanism;

[0008] A controller, for controlling the output power of the energy storage motor;

[0009] An energy storage crank arm is fixedly mounted on the energy storage shaft;

[0010] The closing energy storage spring is connected to the energy storage crank arm. When the energy storage shaft drives the energy storage crank arm to swing on the energy storage stroke, the closing energy storage spring is driven to deform and store energy. The energy storage stroke has an energy storage starting position and an energy storage completion position.

[0011] Also includes:

[0012] An energy storage spring is transmission-connected to the energy storage crank arm or to the energy storage crank arm fixed on the energy storage shaft. Corresponding to the energy storage stroke of the energy storage crank arm, the energy storage crank arm or the energy storage crank arm has a front energy storage stroke and a rear release stroke. In the front energy storage stroke, the energy storage spring is driven by the energy storage crank arm or the energy storage crank arm to deform and store energy. In the rear release stroke, the energy storage spring is released to drive the energy storage crank arm to swing to the energy storage completion position, or the energy storage spring is released to drive the energy storage crank arm to swing to the energy storage completion position with the energy storage shaft and the energy storage crank arm.

[0013] The beneficial effect is: by adding an energy storage spring to the spring operating mechanism, during the energy storage process of the closing energy storage spring, the energy storage spring accumulates the energy released by the energy storage motor in the first half of the energy storage of the closing energy storage spring, and releases the accumulated energy in the second half of the energy storage of the closing energy storage spring to assist the energy storage motor in completing the energy storage of the second half of the closing energy storage spring. In this way, by selecting a controller with relatively small output power, the closing energy storage spring can be fully stored in the energy storage, which not only avoids the waste of energy when the closing energy storage spring stores energy in the first half, but also selects a smaller output power controller module while selecting a smaller power motor, saving costs.

[0014] Furthermore, the energy storage spring is guided to deform by a spring guide, and the spring guide is hinged to the energy storage crank arm or the energy storage crank arm;

[0015] The spring operating mechanism also includes an axial limiter, which stops and limits the spring guide in the axial direction of the energy storage shaft so that the spring guide and the energy storage spring move within a limit plane, and the limit plane is arranged perpendicular to the energy storage shaft.

[0016] The beneficial effect is that the provision of the spring guide is more conducive to the storage and release of the energy storage spring.

[0017] Furthermore, the axial limit member is provided with a long limit hole, and the long limit hole has two side stop side walls arranged at intervals along the axial direction of the energy storage shaft, and the two side stop side walls cooperate to achieve the stop limit of the spring guide member, and the long limit hole extends in the limit plane so that the spring guide member can translate with the energy storage spring.

[0018] The beneficial effect is that the energy storage spring translates along with the spring guide, and no component force is generated when the energy storage spring stores and releases energy, so the energy stored in the energy storage spring can be effectively utilized.

[0019] Furthermore, the limiting long hole extends along a straight line extending from the energy storage starting position to the energy storage completion position.

[0020] The beneficial effects are: reducing the length of the limiting long hole and reducing the processing cost.

[0021] Furthermore, the spring guide is a guide rod, and the energy storage spring is a compression spring sleeved on the guide rod.

[0022] The beneficial effect is that the compression spring is sleeved on the guide rod to ensure the stability of the energy storage spring during compression.

[0023] Furthermore, the axial limiting member is a limiting plate, and one side of the limiting plate is fixed on the corresponding shell.

[0024] The beneficial effect is that such a design can save materials and reduce costs.

[0025] Furthermore, the spring operating mechanism also includes a slide plate, which is provided with a sliding hole, the sliding hole is a semi-ring structure, and the energy storage crank arm or the transmission shaft of the energy storage crank arm passes through the sliding hole and slides with the sliding hole.

[0026] The beneficial effects are: the sliding hole is easy to process, and the transmission shaft passes through the sliding hole, which can ensure the stability of the transmission shaft sliding in the sliding hole.

[0027] Furthermore, the energy storage spring is located on a side of the slide plate facing away from the energy storage shaft.

[0028] The beneficial effect is that the energy storage spring is easy to disassemble and assemble.

[0029] To achieve the above object, the technical solution of the operating mechanism box of the present invention is:

[0030] The operating mechanism box comprises a shell, in which a spring operating mechanism is arranged;

[0031] The spring operating mechanism comprises:

[0032] The energy storage shaft is driven to rotate by the energy storage motor through the transmission mechanism;

[0033] A controller, for controlling the output power of the energy storage motor;

[0034] An energy storage crank arm is fixedly mounted on the energy storage shaft;

[0035] The closing energy storage spring is connected to the energy storage crank arm. When the energy storage shaft drives the energy storage crank arm to swing on the energy storage stroke, the closing energy storage spring is driven to deform and store energy. The energy storage stroke has an energy storage starting position and an energy storage completion position.

[0036] Also includes:

[0037] An energy storage spring is transmission-connected to the energy storage crank arm or to the energy storage crank arm fixed on the energy storage shaft. Corresponding to the energy storage stroke of the energy storage crank arm, the energy storage crank arm or the energy storage crank arm has a front energy storage stroke and a rear release stroke. In the front energy storage stroke, the energy storage spring is driven by the energy storage crank arm or the energy storage crank arm to deform and store energy. In the rear release stroke, the energy storage spring is released to drive the energy storage crank arm to swing to the energy storage completion position, or the energy storage spring is released to drive the energy storage crank arm to swing to the energy storage completion position with the energy storage shaft and the energy storage crank arm.

[0038] The beneficial effect is: by adding an energy storage spring to the spring operating mechanism, during the energy storage process of the closing energy storage spring, the energy storage spring accumulates the energy released by the energy storage motor in the first half of the energy storage of the closing energy storage spring, and releases the accumulated energy in the second half of the energy storage of the closing energy storage spring to assist the energy storage motor in completing the energy storage of the second half of the closing energy storage spring. In this way, by selecting a controller with relatively small output power, the closing energy storage spring can be fully stored in the energy storage, which not only avoids the waste of energy when the closing energy storage spring stores energy in the first half, but also selects a smaller output power controller module while selecting a smaller power motor, saving costs.

[0039] Furthermore, the energy storage spring is guided to deform by a spring guide, and the spring guide is hinged to the energy storage crank arm or the energy storage crank arm;

[0040] The spring operating mechanism also includes an axial limiter, which stops and limits the spring guide in the axial direction of the energy storage shaft so that the spring guide and the energy storage spring move within a limit plane, and the limit plane is arranged perpendicular to the energy storage shaft.

[0041] The beneficial effect is that the provision of the spring guide is more conducive to the storage and release of the energy storage spring.

[0042] Furthermore, the axial limit member is provided with a long limit hole, and the long limit hole has two side stop side walls arranged at intervals along the axial direction of the energy storage shaft, and the two side stop side walls cooperate to achieve the stop limit of the spring guide member, and the long limit hole extends in the limit plane so that the spring guide member can translate with the energy storage spring.

[0043] The beneficial effect is that the energy storage spring translates along with the spring guide, and no component force is generated when the energy storage spring stores and releases energy, so the energy stored in the energy storage spring can be effectively utilized.

[0044] Furthermore, the limiting long hole extends along a straight line extending from the energy storage starting position to the energy storage completion position.

[0045] The beneficial effects are: reducing the length of the limiting long hole and reducing the processing cost.

[0046] Furthermore, the spring guide is a guide rod, and the energy storage spring is a compression spring sleeved on the guide rod.

[0047] The beneficial effect is that the compression spring is sleeved on the guide rod to ensure the stability of the energy storage spring during compression.

[0048] Furthermore, the axial limiting member is a limiting plate, and one side of the limiting plate is fixed on the corresponding shell.

[0049] The beneficial effect is that such a design can save materials and reduce costs.

[0050] Furthermore, the spring operating mechanism also includes a slide plate, which is provided with a sliding hole, the sliding hole is a semi-ring structure, and the energy storage crank arm or the transmission shaft of the energy storage crank arm passes through the sliding hole and slides with the sliding hole.

[0051] The beneficial effects are: the sliding hole is easy to process, and the transmission shaft passes through the sliding hole, which can ensure the stability of the transmission shaft sliding in the sliding hole.

[0052] Furthermore, the energy storage spring is located on a side of the slide plate facing away from the energy storage shaft.

[0053] The beneficial effect is that the energy storage spring is easy to disassemble and assemble.

[0054] To achieve the above object, the technical solution of the circuit breaker of the present invention is:

[0055] The circuit breaker comprises a circuit breaker housing, wherein a spring operating mechanism is arranged in the circuit breaker housing;

[0056] The spring operating mechanism comprises:

[0057] The energy storage shaft is driven to rotate by the energy storage motor through the transmission mechanism;

[0058] A controller, for controlling the output power of the energy storage motor;

[0059] An energy storage crank arm is fixedly mounted on the energy storage shaft;

[0060] The closing energy storage spring is connected to the energy storage crank arm. When the energy storage shaft drives the energy storage crank arm to swing on the energy storage stroke, the closing energy storage spring is driven to deform and store energy. The energy storage stroke has an energy storage starting position and an energy storage completion position.

[0061] Also includes:

[0062] An energy storage spring is transmission-connected to the energy storage crank arm or to the energy storage crank arm fixed on the energy storage shaft. Corresponding to the energy storage stroke of the energy storage crank arm, the energy storage crank arm or the energy storage crank arm has a front energy storage stroke and a rear release stroke. In the front energy storage stroke, the energy storage spring is driven by the energy storage crank arm or the energy storage crank arm to deform and store energy. In the rear release stroke, the energy storage spring is released to drive the energy storage crank arm to swing to the energy storage completion position, or the energy storage spring is released to drive the energy storage crank arm to swing to the energy storage completion position with the energy storage shaft and the energy storage crank arm.

[0063] The beneficial effect is: by adding an energy storage spring to the spring operating mechanism, during the energy storage process of the closing energy storage spring, the energy storage spring accumulates the energy released by the energy storage motor in the first half of the energy storage of the closing energy storage spring, and releases the accumulated energy in the second half of the energy storage of the closing energy storage spring to assist the energy storage motor in completing the energy storage of the second half of the closing energy storage spring. In this way, by selecting a controller with relatively small output power, the closing energy storage spring can be fully stored in the energy storage, which not only avoids the waste of energy when the closing energy storage spring stores energy in the first half, but also selects a smaller output power controller module while selecting a smaller power motor, saving costs.

[0064] Furthermore, the energy storage spring is guided to deform by a spring guide, and the spring guide is hinged to the energy storage crank arm or the energy storage crank arm;

[0065] The spring operating mechanism also includes an axial limiter, which stops and limits the spring guide in the axial direction of the energy storage shaft so that the spring guide and the energy storage spring move within a limit plane, and the limit plane is arranged perpendicular to the energy storage shaft.

[0066] The beneficial effect is that the provision of the spring guide is more conducive to the storage and release of the energy storage spring.

[0067] Furthermore, the axial limit member is provided with a long limit hole, and the long limit hole has two side stop side walls arranged at intervals along the axial direction of the energy storage shaft, and the two side stop side walls cooperate to achieve the stop limit of the spring guide member, and the long limit hole extends in the limit plane so that the spring guide member can translate with the energy storage spring.

[0068] The beneficial effect is that the energy storage spring translates along with the spring guide, and no component force is generated when the energy storage spring stores and releases energy, so the energy stored in the energy storage spring can be effectively utilized.

[0069] Furthermore, the limiting long hole extends along a straight line extending from the energy storage starting position to the energy storage completion position.

[0070] The beneficial effects are: reducing the length of the limiting long hole and reducing the processing cost.

[0071] Furthermore, the spring guide is a guide rod, and the energy storage spring is a compression spring sleeved on the guide rod.

[0072] The beneficial effect is that the compression spring is sleeved on the guide rod to ensure the stability of the energy storage spring during compression.

[0073] Furthermore, the axial limiting member is a limiting plate, and one side of the limiting plate is fixed on the corresponding shell.

[0074] The beneficial effect is that such a design can save materials and reduce costs.

[0075] Furthermore, the spring operating mechanism also includes a slide plate, which is provided with a sliding hole, the sliding hole is a semi-ring structure, and the energy storage crank arm or the transmission shaft of the energy storage crank arm passes through the sliding hole and slides with the sliding hole.

[0076] The beneficial effects are: the sliding hole is easy to process, and the transmission shaft passes through the sliding hole, which can ensure the stability of the transmission shaft sliding in the sliding hole.

[0077] Furthermore, the energy storage spring is located on a side of the slide plate facing away from the energy storage shaft.

[0078] The beneficial effect is that the energy storage spring is easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] Figure 1 It is a structural schematic diagram of a specific embodiment 1 of the circuit breaker of the present invention;

[0080] Figure 2 for Figure 1 The right view of the structure is rotated 90° clockwise;

[0081] Figure 3 for Figure 2 A schematic diagram of the structure of the middle slide plate;

[0082] Figure 4 for Figure 2 A schematic diagram of the structure of the middle energy storage spring and the guide rod;

[0083] Figure 5 for Figure 2 Structural diagram of the middle limit plate;

[0084] Figure 6 for Figure 1 The schematic diagram of the structure of the energy storage spring at the beginning of energy storage of the closing circuit breaker;

[0085] Figure 7 for Figure 6 A top view of

[0086] Figure 8 for Figure 1 The schematic diagram of the structure of the closing energy storage spring energy storage;

[0087] Fig. 9 for Figure 8 A top view of

[0088] Fig.10 for Figure 1 A schematic diagram of the structure in which the closing energy storage spring completes energy storage;

[0089] Fig.11 for Fig.10 A top view of

[0090] In the figure: 1-circuit breaker housing; 2-closing energy storage spring; 3-guide rod; 4-first spring seat; 5-bracket; 6-limiting plate; 61-limiting long hole; 62-fixing folded edge; 7-transmission shaft; 8-energy storage motor; 9-slide plate; 91-sliding hole; 10-second spring seat; 11-energy storage spring; 12-energy storage shaft. DETAILED DESCRIPTION

[0091] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0092] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0093] It should be noted that the relational terms such as the terms "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements. In addition, the terms "upper" and "lower" are based on the orientation and positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating that the device or component referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0094] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0095] Specific embodiment 1 of the circuit breaker of the present invention:

[0096] like Figure 1 As shown, the circuit breaker includes a circuit breaker housing 1, in which a spring operating mechanism is provided. The spring operating mechanism includes a bracket 5 installed in the circuit breaker housing 1, on which an energy storage motor 8 and an energy storage shaft 12 are fixedly provided. The energy storage shaft 12 is rotatably assembled on the bracket 5. The energy storage motor 8 drives the energy storage shaft 12 to rotate through a gear transmission mechanism, and an energy storage crank arm is fixedly provided on the energy storage shaft 12.

[0097] In this embodiment, the energy storage crank arm includes a crank arm body and a transmission shaft 7, the crank arm body is fixed on the energy storage shaft 12, the transmission shaft 7 is fixed on the crank arm body, and the axis of the transmission shaft 7 is parallel to the axis of the energy storage shaft 12; a closing energy storage spring 2 is provided between the bracket 5 and the transmission shaft 7, one end of the closing energy storage spring 2 is hinged to the bracket 5, and the other end is hinged to the transmission shaft 7. When storing energy, the transmission shaft 7 rotates with the energy storage shaft 12 to drive the closing energy storage spring 2 to stretch and deform, thereby realizing closing energy storage. Among them, the closing energy storage spring 2 is a tension spring.

[0098] like Figure 2 and Figure 3 As shown, a slide plate 9 is welded inside the circuit breaker housing 1 , and the slide plate 9 is arranged perpendicular to the transmission shaft 7 . A sliding hole 91 is provided on the slide plate 9 , and the sliding hole 91 is a semi-ring structure.

[0099] In this embodiment, the transmission shaft 7 passes through the sliding hole 91 and can slide in the sliding hole 91. The sliding stroke of the transmission shaft 7 on the sliding hole 91 includes an energy storage starting position, an energy storage middle position and an energy storage completion position. The energy storage starting position corresponds to the energy storage starting position of the closing energy storage spring 2, the energy storage middle position corresponds to the position of half of the total stretched length of the closing energy storage spring 2, and the energy storage completion position corresponds to the energy storage completion position of the closing energy storage spring 2. Among them, the energy storage starting position and the energy storage completion position are respectively located at the two ends of the sliding hole 91, and the energy storage middle position is located in the middle position of the sliding hole 91. In other embodiments, the sliding hole can be a circular ring structure, but the positions of the energy storage starting position, the energy storage middle position and the energy storage completion position in the sliding hole remain unchanged.

[0100] like Figure 2 and Figure 4 As shown, a guide rod 3 is hinged at the end of the transmission shaft 7, and the guide rod 3 is located on the side of the slide plate 9 facing away from the energy storage shaft 12. A limit plate 6 is also provided in the circuit breaker housing 1, and the limit plate 6 is arranged vertically to the slide plate 9 and parallel to the axis of the transmission shaft 7.

[0101] In this embodiment, a limiting long hole 61 is provided on the limiting plate 6, and the limiting long hole extends along the straight line extending from the energy storage starting position to the energy storage completion position. The end of the guide rod 3 away from the transmission shaft 7 passes through the limiting long hole 61, and is guided and slidably assembled in the limiting long hole 61. The limiting long hole 61 has two side stopper side walls arranged at intervals along the axial direction of the energy storage shaft 12. The two side stopper side walls cooperate to achieve the stopper limit of the guide rod 3, so that the guide rod with the energy storage spring 11 can translate in the limiting plane, and the limiting plane is arranged perpendicular to the energy storage shaft 12. Among them, the guide rod 3 constitutes a spring guide, and the limiting plate 6 constitutes an axial limiter.

[0102] An energy storage spring 11 is sleeved on the guide rod 3 , and the energy storage spring 11 is located between the transmission shaft 7 and the limiting plate 6 , wherein the energy storage spring 11 is a compression spring.

[0103] like Figure 5 As shown, the limiting plate 6 is provided with a fixed fold 62, and the limiting plate 6 is welded to the circuit breaker housing 1 through the fixed fold 62. The fixed fold increases the welding area and ensures the stability of the limiting plate 6 on the circuit breaker housing 1.

[0104] In this embodiment, in order to ensure the stability of the energy storage spring 11 during the compression process, a second spring seat 10 is fixedly provided at one end of the guide rod 3, and a first spring seat 4 is slidably mounted at the other end of the guide rod 3, wherein the second spring seat 10 supports one end of the energy storage spring 11 close to the transmission shaft 7, and the first spring seat 4 supports one end of the energy storage spring 11 close to the limit plate 6. In the process of translation of the guide rod 3, the first spring seat 4 slides with the limit plate 6. In other embodiments, a slider is provided on one of the first spring seat and the limit plate, and a slide groove is provided on the other, and the first spring seat is slidably mounted on the limit plate through the cooperation of the slider and the slide groove, which reduces the contact area between the first spring seat and the limit plate, thereby reducing the friction between the first spring seat and the limit plate, which is conducive to the sliding of the first spring seat on the limit plate.

[0105] like Figure 6 and Figure 7 As shown, when the circuit breaker is in a non-energy storage state, the transmission shaft 7 is in the energy storage starting position, at which time the closing energy storage spring 2 has not started to store energy, and the energy storage spring 11 has not started to store energy either; when closing energy storage is required, the controller outputs an energy storage voltage to the energy storage motor 8, and the energy storage motor 8 drives the energy storage shaft 12 to rotate forward through the gear transmission mechanism, and the energy storage shaft 12 stretches the closing energy storage spring 2 through the transmission shaft 7 on the crank arm to start energy storage. At the same time, the transmission shaft 7 slides in the sliding hole 91 and compresses the energy storage spring 11 through the second spring seat 10, and the energy storage spring 11 starts to accumulate energy. When the energy storage of the energy storage spring 11 is completed, as shown in FIG. Figure 8 and Fig. 9 As shown, at this time, the transmission shaft 7 is in the middle energy storage position, that is, the front energy storage stroke; when the energy storage shaft 12 continues to rotate forward, the energy storage shaft 12 stretches the closing energy storage spring 2 through the transmission shaft 7 on the crank arm to continue to store energy. At the same time, the energy storage spring 11 releases the accumulated energy and cooperates with the energy storage shaft 12 to drive the closing energy storage spring 2 to complete the energy storage of the closing energy storage spring 2. When the energy storage of the closing energy storage spring 2 is completed, Fig.10 and Fig.11 As shown, at this time, the transmission shaft 7 is in the energy storage completion position, that is, the rear release stroke.

[0106] During the energy storage process of the closing energy storage spring 2, the energy stored in the energy storage spring 11 is used to assist in completing the energy storage of the second half of the closing energy storage spring 2. In this way, the energy storage of the closing energy storage spring 2 can be achieved by selecting a controller with a relatively small output power, thereby avoiding the waste of energy when the closing energy storage spring 2 stores energy in the first half. Moreover, while selecting a controller with a smaller output power, a smaller power motor can be selected, thereby saving costs.

[0107] Specific embodiment 2 of the circuit breaker of the present invention:

[0108] The difference from the specific embodiment 1 is that in the embodiment 1, the guide rod 3 is hinged on the transmission shaft 7, and the energy storage spring 11 is a compression spring sleeved on the guide rod 3 to realize the energy storage spring to store and release energy. In this embodiment, no guide rod is arranged on the transmission shaft, and the energy storage spring is a tension spring, one end of the tension spring is arranged on the transmission shaft, and the other end is arranged on the slide plate below the sliding hole to realize the energy storage spring to store and release energy. Among them, in order to better realize the energy storage spring to store and release energy, the energy storage spring is arranged on one end of the slide plate directly below the middle position of the energy storage. In other embodiments, the end of the tension spring fixed on the transmission shaft can be fixed on the crank arm body.

[0109] Specific embodiment 3 of the circuit breaker of the present invention:

[0110] The difference from specific embodiment 1 is that in embodiment 1, the end of the guide rod 3 close to the limit plate 6 is slidably equipped with a first spring seat 4, and the end of the guide rod 3 close to the transmission shaft 7 is fixedly provided with a second spring seat 10 to ensure the stability of the compression process of the energy storage spring 11. In this embodiment, the first spring seat is not provided at the end of the guide rod close to the limit plate, and the energy storage spring is directly abutted against the limit plate to ensure the stability of the compression process of the energy storage spring.

[0111] Specific embodiment 4 of the circuit breaker of the present invention:

[0112] The difference from specific embodiment 1 is that in embodiment 1, the end of the guide rod 3 close to the limit plate 6 is slidably equipped with a first spring seat 4, and the end of the guide rod 3 close to the transmission shaft 7 is fixedly provided with a second spring seat 10 to ensure the stability of the energy storage spring 11 during the compression process. In this embodiment, the second spring seat is not provided at the end of the guide rod close to the transmission shaft. At this time, the guide rod is hinged at an inner position on the transmission shaft, and the energy storage spring directly abuts against the transmission shaft to ensure the stability of the energy storage spring during the compression process.

[0113] Specific embodiment 5 of the circuit breaker of the present invention:

[0114] The difference from the specific embodiment 1 is that in the embodiment 1, a limit plate 6 is provided in the circuit breaker housing 1, and a limit long hole 61 is provided on the limit plate 6, and the limit long hole 61 constitutes a guide slide, and the limit long hole 61 is used to guide the guide rod. In this embodiment, a guide block is provided in the circuit breaker housing, and a guide groove is provided on the guide block. The cross-section of the guide groove in the groove depth direction is semicircular, and the guide groove constitutes a guide slide, and the guide groove is used to guide the guide rod.

[0115] Specific embodiment 6 of the circuit breaker of the present invention:

[0116] The difference from specific embodiment 1 is that in embodiment 1, a slide plate 9 is welded inside the circuit breaker housing, a sliding hole 91 is provided on the slide plate 9, the sliding hole 91 is a semi-ring structure, and the sliding hole 91 constitutes an arc-shaped slide, while in this embodiment, a slide block is welded inside the circuit breaker housing, a sliding groove is provided on the slide block, and the sliding groove is a semi-ring structure.

[0117] Specific embodiment 7 of the circuit breaker of the present invention:

[0118] The difference from specific embodiment 1 is that in embodiment 1, the energy storage spring 11 and the guide rod 3 are both on the side of the slide plate facing away from the transmission shaft. While the energy storage spring 11 realizes energy storage, it is convenient to disassemble and assemble the guide rod and the energy storage spring. In this embodiment, the energy storage spring and the guide rod are arranged on the side of the slide plate facing the transmission shaft to realize energy storage of the energy storage spring. During assembly, the guide rod is first installed on the transmission shaft, and then the slide plate is installed on the transmission shaft.

[0119] Specific embodiment 8 of the circuit breaker of the present invention:

[0120] The difference from the specific embodiment 1 is that in the embodiment 1, the transmission shaft 7 of the energy storage crank arm is hinged with a guide rod 3, and the energy storage spring 11 is a compression spring sleeved on the guide rod 3 to realize the energy storage spring to store and release energy. In this embodiment, no guide rod is provided on the transmission shaft, and an energy storage crank arm is additionally provided on the energy storage shaft. The energy storage spring is a tension spring, one end of which is provided on the energy storage crank arm, and the other end is provided on the bracket below the energy storage shaft to realize the energy storage spring to store and release energy. In other embodiments, the extra crank arm on the energy storage shaft can be used as an energy storage crank arm, but the crank arm should be able to store and release energy of the energy storage spring during the activity.

[0121] Specific embodiment 9 of the circuit breaker of the present invention:

[0122] The difference from specific embodiment 1 is that in embodiment 1, the axial limit member is a limit plate 6, and a limit long hole 61 is provided on the limit plate 6. The guide rod 3 translates in the limit long hole 61 to realize the energy storage and release of the energy storage spring 11. In this embodiment, the axial limit member is a ball joint, and the ball joint is arranged above the sliding hole and in the middle position. The ball joint is provided with a through hole, and the guide rod is installed in the through hole and can slide in the through hole. The hole wall of the through hole stops and limits the guide rod. When the transmission shaft slides in the sliding hole, the guide rod moves relative to the ball joint and slides on the ball joint to realize the energy storage and release of the energy storage spring.

[0123] The specific embodiment of the spring operating mechanism of the present invention has the same structure as the spring operating mechanism described in any one of the specific embodiments 1 to 9 of the above-mentioned circuit breaker, and will not be described in detail here.

[0124] A specific embodiment of the operating mechanism box of the present invention comprises a shell, in which a spring operating mechanism is arranged. The spring operating mechanism has the same structure as the spring operating mechanism described in any one of the specific embodiments 1 to 9 of the above-mentioned circuit breaker, and will not be described in detail here.

[0125] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. Spring operating mechanism, comprising: The energy storage shaft is driven to rotate by the energy storage motor through the transmission mechanism; A controller, for controlling the output power of the energy storage motor; An energy storage crank arm is fixedly mounted on the energy storage shaft; The closing energy storage spring is connected to the energy storage crank arm. When the energy storage shaft drives the energy storage crank arm to swing on the energy storage stroke, the closing energy storage spring is driven to deform and store energy. The energy storage stroke has an energy storage starting position and an energy storage completion position. It is characterized by further comprising: An energy storage spring is transmission-connected to the energy storage crank arm or to the energy storage crank arm fixed on the energy storage shaft. Corresponding to the energy storage stroke of the energy storage crank arm, the energy storage crank arm or the energy storage crank arm has a front energy storage stroke and a rear release stroke. In the front energy storage stroke, the energy storage spring is deformed and stored by the energy storage crank arm or the energy storage crank arm. In the rear release stroke, the energy storage spring is released to drive the energy storage crank arm to swing toward the energy storage completion position, or the energy storage spring is released to drive the energy storage crank arm to swing toward the energy storage completion position with the energy storage shaft and the energy storage crank arm. The energy storage spring is deformed by a spring guide, and the spring guide is hinged to the energy storage crank arm or the energy storage crank arm. The spring operating mechanism also includes an axial limiter, which stops and limits the spring guide in the axial direction of the energy storage shaft.

2. The spring operating mechanism according to claim 1, characterized in that: The axial limiting member enables the spring guide member and the energy storage spring to move within a limiting plane, and the limiting plane is arranged perpendicular to the energy storage shaft.

3. The spring operating mechanism according to claim 2, characterized in that: The axial limit member is provided with a limit long hole, and the limit long hole has two side stop side walls arranged at intervals along the axial direction of the energy storage shaft, and the two side stop side walls cooperate to achieve the stop limit of the spring guide member, and the limit long hole extends in the limit plane so that the spring guide member can translate with the energy storage spring.

4. The spring operating mechanism according to claim 3, characterized in that: The position-limiting long hole extends along a straight line extending from the energy storage starting position to the energy storage completion position.

5. The spring operating mechanism according to any one of claims 2 to 4, characterized in that: The spring guide is a guide rod, and the energy storage spring is a compression spring sleeved on the guide rod.

6. The spring operating mechanism according to any one of claims 2 to 4, characterized in that: The axial limiting member is a limiting plate, and one side of the limiting plate is fixed on the corresponding shell.

7. The spring operating mechanism according to any one of claims 1 to 4, characterized in that: The spring operating mechanism also includes a slide plate, which is provided with a sliding hole, the sliding hole is a semi-ring structure, and the energy storage crank arm or the transmission shaft of the energy storage crank arm passes through the sliding hole and slides with the sliding hole.

8. The spring operating mechanism according to claim 7, characterized in that: The energy storage spring is located on a side of the slide plate facing away from the energy storage shaft.

9. An operating mechanism box, comprising a housing, in which a spring operating mechanism is arranged, characterized in that: The spring operating mechanism is the spring operating mechanism according to any one of claims 1 to 8.

10. A circuit breaker, comprising a circuit breaker housing, wherein a spring operating mechanism is provided in the circuit breaker housing, wherein: The spring operating mechanism is the spring operating mechanism according to any one of claims 1 to 8.

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