A state detection structure of a disconnector

Abstract

This application discloses a state detection structure for a disconnecting switch, which includes a housing; a position detection switch having a first state and a second state, the first state and the second state corresponding to the switch being in the closed position and the open position, respectively; the position detection switch is disposed on one side of the switch-open energy storage mechanism, and the state is switched by the action of the switch-open energy storage mechanism; this application has the feature of more intuitive signal feedback.

Description

Technical Field

[0001] This application relates to the field of low-voltage electrical appliances, specifically a status detection structure for a disconnector switch. Background Technology

[0002] The existing disconnect switch with shunt trip function includes a shunt trip energy storage mechanism and a switching and closing energy storage mechanism. The switching and closing energy storage mechanism is directly linked to the switch unit layer below. The shunt trip energy storage mechanism releases energy after the trip unit is actuated, and after the energy is released, it drives the switching and closing energy storage mechanism to open the circuit.

[0003] For example, the disconnecting switch and its opening and closing device disclosed in CN215578335U adopt this structure. This disconnecting switch uses an internal microswitch to detect the position of the shunt-triggered energy storage mechanism, thereby determining whether the shunt-triggered energy storage mechanism is in an energy storage state.

[0004] However, for the switch unit layer, its true state is difficult to determine using this type of microswitch because the shunt-triggered energy storage mechanism is not strongly correlated (not directly linked) with the switch unit layer. Only the switching and closing energy storage mechanism is strongly correlated (directly linked) with the switch unit layer. It's possible that the switching and closing energy storage mechanism is intact, allowing the user to perform opening and closing operations, but in reality, the shunt-triggered energy storage mechanism is damaged. Obviously, in this case, this microswitch setting method cannot provide an indication effect.

[0005] Therefore, how to improve the setting of microswitches to better reflect the status of disconnect switches is a question worth considering. Summary of the Invention

[0006] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and to provide a state detection structure for a disconnecting switch.

[0007] This application provides: a status detection structure for a disconnector switch, comprising a housing, characterized in that: it further comprises,

[0008] The drive shaft is configured to rotate around an axis.

[0009] The split-connect energy storage mechanism includes a drive disk, a split-connect base, a second energy storage spring, and a locking assembly;

[0010] The drive disc and drive shaft are configured to rotate synchronously, and the drive disc has an unlocking mechanism.

[0011] The switchgear is rotatable and is linked to the moving contact of the switch unit layer. The switchgear has an open position and a closed position.

[0012] The locking component has a locked state that locks the engagement seat to the housing and an unlocked state that releases the lock.

[0013] The second energy storage spring is connected between the drive disk and the split-joint seat. In the initial stage of the drive shaft rotation, the locking component is in a locked state. As the drive disk rotates, the second energy storage spring stores energy. After the unlocking part of the drive disk contacts the locking component and unlocks it, the split-joint seat quickly switches positions under the action of the second energy storage spring.

[0014] The position detection switch has a first state and a second state, which correspond to the switch being in the closed position and the switch being in the open position, respectively. The position detection switch is located on one side of the switch-open energy storage mechanism and its state is switched by the action of the switch-open energy storage mechanism.

[0015] In some embodiments of this application, a trigger protrusion is provided on the circumferential sidewall of the switch. When the switch is in the open position, the trigger protrusion triggers the position detection switch, thereby changing the state of the position detection switch.

[0016] In some embodiments of this application, a trigger protrusion is provided on the circumferential sidewall of the switching seat. When the switching seat is in the closed position, the trigger protrusion triggers the position detection switch, thereby changing the state of the position detection switch.

[0017] In some embodiments of this application, the locking components are in two sets, one set locking the switch when it is in the open position, and the other set locking the switch when it is in the closed position; the position detection switch corresponds to one of the locking components, presenting a first state when the locking component is in the locked state, and presenting a second state when the locking component is in the unlocked state.

[0018] In some embodiments of this application, the locking component corresponding to the position detection switch includes a spring plate and a locking member, the locking member being rotatable or slidable relative to the housing; the position detection switch includes a movable changeover push rod, a changeover spring, and a micro switch; the shape of the spring plate is different when the locking component is in the locked state and the unlocked state; the changeover push rod contacts the spring plate of the corresponding locking component, and the changeover spring is connected to the changeover push rod; the first state and the second state are respectively: one is that the changeover push rod acts on the button of the micro switch, and the other is that the changeover push rod disengages from the button of the micro switch; the switching between the first state and the second state is achieved by changing the position of the spring plate and the changeover spring.

[0019] In some embodiments of this application, the locking component corresponding to the position detection switch is a tripping locking component; when the tripping locking component is in the unlocked state, the switching push rod leaves the button of the micro switch under the action of the spring plate, and causes the switching spring to deform; when the tripping locking component is in the locked state, the switching push rod moves toward the button of the micro switch under the action of the switching spring and contacts the button.

[0020] In some embodiments of this application, the locking component corresponding to the position detection switch is a tripping locking component; when the tripping locking component is in the unlocked state, the switching push rod moves toward the button of the micro switch under the action of the spring plate and contacts the button, and causes the switching spring to deform; when the tripping locking component is in the locked state, the switching push rod leaves the button of the micro switch under the action of the switching spring.

[0021] In some embodiments of this application, the locking component corresponding to the position detection switch is a closing locking component; when the closing locking component is in the unlocked state, the changeover push rod leaves the button of the micro switch under the action of the spring plate, and causes the changeover spring to deform; when the closing locking component is in the locked state, the changeover push rod moves toward the button of the micro switch under the action of the changeover spring and contacts the button.

[0022] In some embodiments of this application, the locking component corresponding to the position detection switch is a closing locking component; when the closing locking component is in the unlocked state, the changeover push rod moves toward the button of the micro switch under the action of the spring plate and contacts the button, and causes the changeover spring to deform; when the closing locking component is in the locked state, the changeover push rod leaves the button of the micro switch under the action of the changeover spring.

[0023] In some embodiments of this application, the spring sheet includes a first plate portion, a bent portion, and a second plate portion, with the first plate portion and the second plate portion connected by the bent portion; the first plate portion is snap-fitted to the outer casing, and the second plate portion passes through a locking member and engages with the locking member; the second plate portion is used to contact the conversion push rod.

[0024] In some embodiments of this application, the housing has a signal interface that is electrically connected to a position detection switch.

[0025] In some embodiments of this application, the housing includes a base; the base includes a base body and a module housing, the module housing and the base body are detachably coupled, and the signal interface is fixed on the module housing.

[0026] In some embodiments of this application, a shunt-excitation energy storage mechanism and a trip unit are also included. The trip unit is fixed to the module housing. The shunt-excitation energy storage mechanism includes a first energy storage spring, an energy storage base, a locking element, a first spring, a retaining element, a second spring, a third spring, and a reset rod that slides linearly. The energy storage base is sleeved on the drive shaft and is unidirectionally connected to the drive shaft. The first energy storage spring is connected between the energy storage base and the housing, and stores energy during the closing operation of the energy storage mechanism driven by the drive shaft. The locking element slides along a first linear direction and has a locked state and an unlocked state. When in the locked state, it restricts the rotation of the energy storage base so that the first energy storage spring retains the stored energy. The first spring provides a biasing force to the locking element to restore it to the locked state. The retaining element slides along a second linear direction and has the function of keeping the locking element locked. The circuit has a first position and a second position where the latching element is released; a second spring provides a biasing force to the retaining element towards the first position; after the trip unit is actuated, the retaining element moves to the second position, the latching element releases its lock on the energy storage base, and the energy storage base rotates due to the rotation of the first energy storage spring, causing the drive shaft to drive the opening and closing energy storage mechanism to perform the opening operation; the first linear direction is set at an angle to the second linear direction; the reset rod has a third position and a fourth position; the reset rod has a biting part I, and the energy storage base has a biting part II. During the rotation of the energy storage base due to the rotation of the first energy storage spring, biting part I and biting part II form a transmission, and the reset rod slides to the third position and pushes the actuated trip unit to reset; during the closing operation of the opening and closing energy storage mechanism, biting part I and biting part II disengage, and the reset rod returns to the fourth position under the action of the third spring.

[0027] In some embodiments of this application, a first abutting structure is provided on the drive shaft, and a second abutting structure is provided on the energy storage base. The first abutting structure and the second abutting structure form a one-way transmission. The one-way transmission is that the first abutting structure abuts against the second abutting structure during the period when the drive shaft drives the energy storage mechanism to perform a closing operation, and the second abutting structure abuts against the first abutting structure during the period when the energy storage base rotates due to the rotation of the first energy storage spring. After the energy storage mechanism completes the closing operation, the drive shaft is rotated in the opposite direction to cause the energy storage mechanism to perform a closing operation. During this period, the first abutting structure does not form a transmission with the second abutting structure.

[0028] The advantages of this application compared to the prior art are:

[0029] Since the switching energy storage mechanism is directly used to drive the moving contact plate of the switch layer, the position detection switch is associated with the switching energy storage mechanism. The first and second states of the position detection switch correspond to the switching base being in the closed and open positions, respectively. The operation of the switching energy storage mechanism causes the position detection switch to switch states. This kind of signal feedback is more intuitive and can better reflect the real state of the moving contact plate below. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of an isolating switch according to an embodiment of this application is shown;

[0032] Figure 2 An exploded view of the energy storage operating mechanism in an embodiment of this application is shown;

[0033] Figure 3 A schematic diagram of one embodiment of the state detection structure in this application is shown;

[0034] Figure 4 A schematic diagram showing the interaction between the signal interface and the module housing in an embodiment of this application is shown;

[0035] Figure 5 A schematic diagram of the locking component in an embodiment of this application is shown;

[0036] Figure 6 The diagram shows a schematic diagram and a partial enlarged view of the spring sheet and the base in an embodiment of this application;

[0037] Figure 7 A schematic diagram of the locking component and the disengagement seat according to an embodiment of this application is shown;

[0038] Figure 8 A schematic diagram is shown in which the circuit breaker is in the open position (the circuit breaker locking component is in the locked state) in an embodiment of this application;

[0039] Figure 9 This illustration shows a schematic diagram of the switchgear in the opening-to-closing state (with the opening locking component in a locked state) in an embodiment of this application.

[0040] Figure 10 A schematic diagram is shown in which the opening and closing seat is in the closed state (the opening locking component is in the unlocked state) in an embodiment of this application;

[0041] Figure 11 This diagram illustrates the positional relationship between the trigger protrusion and the position detection switch when the switch is in the open position in an embodiment of this application.

[0042] Figure 12 This diagram illustrates the positional relationship between the trigger protrusion and the position detection switch when the switch is in the closed position, according to an embodiment of this application.

[0043] Figure 13A schematic diagram of the shunt-excitation energy storage mechanism in an embodiment of this application is shown;

[0044] Figure 14 This application embodiment shows a schematic diagram of the shunt-driven energy storage mechanism in a locked state;

[0045] Figure 15 This application embodiment shows a schematic diagram of the shunt-driven energy storage mechanism in an unlocked state;

[0046] Figure 16 A schematic diagram of the reset lever in an embodiment of this application is shown;

[0047] Figure 17 A schematic diagram of the energy storage base in an embodiment of this application is shown;

[0048] Figure 18 A schematic diagram of a unidirectional transmission structure in an embodiment of this application is shown;

[0049] Figure 19 A schematic diagram of the split-joint seat in an embodiment of this application is shown;

[0050] Figure 20 A schematic diagram of the split-and-joint seat from one perspective is shown in an embodiment of this application;

[0051] Figure 21 A schematic diagram of the splitting and engaging seat and the second energy storage spring in an embodiment of this application is shown;

[0052] Figure 22 A schematic diagram of the drive disk in an embodiment of this application is shown. Detailed Implementation

[0053] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0054] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0056] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. Example

[0058] like Figures 1-22 As shown, an embodiment of this application is a state detection structure for a disconnecting switch. This state detection structure is used to reflect the state of the moving contact of the disconnecting switch, and includes the following structure:

[0059] The housing, drive shaft 130, shunt excitation energy storage mechanism 20, and split-combination energy storage mechanism 10.

[0060] Here, the drive shaft 130 is rotatably configured relative to the housing, specifically rotating around axis O. One end of the drive shaft 130 extends outside the housing to connect with the operating handle for user operation.

[0061] The portion of the drive shaft 130 located inside the housing cooperates with the shunt excitation energy storage mechanism 20 and the split-combination energy storage mechanism 10, respectively.

[0062] Here, the splitting and merging energy storage mechanism 10 is used to directly form a transmission engagement with the moving contact plates of the switching layers 200 (each switching layer 200 below the operating mechanism). That is, the operation of the splitting and merging energy storage mechanism 10 can directly drive the moving contact plates of the switching layers 200 to rotate. This transmission engagement (formed by plugging, with the first layer moving contact plate plugging into the output part of the splitting and merging energy storage mechanism 10 (that is, the transmission boss 155 on the splitting and merging base 150), and the adjacent moving contact plates plugging into each other) is already a conventional technology and will not be described in detail here.

[0063] The energy storage mechanism 10 also features an energy storage spring, enabling it to perform opening and closing operations under the rotation of the drive shaft 130. Clearly, this energy storage mechanism 10 must have both an opening and a closing position (two positions on the opening / closing seat 150). The transition from the opening to the closing position is called a closing operation; conversely, it is called an opening operation. Whether in an opening or closing operation, the energy storage mechanism 10 first stores energy and then releases it, thus allowing the moving contact plate to rotate rapidly.

[0064] The switching and closing energy storage mechanism 10 includes a drive plate 140, a switching and closing seat 150, a second energy storage spring 160, and two locking components 170 (one is a switching locking component 170a, and the other is a closing locking component 170b).

[0065] The drive disk 140 is connected to the drive shaft 130 and rotates synchronously with it. Here, the synchronous rotation of the drive disk 140 and the drive shaft 130 is achieved by a radial engagement (which can be understood as a engagement in the rotational direction). There are many ways to achieve this radial engagement. As a preferred method, the drive disk 140 has a mating hole 141, into which the drive shaft 130 is at least partially inserted, forming a radial (or rotational) engagement. This structure is relatively simple. Of course, other methods can also be used. For example, a pin can be provided through the drive shaft 130 in the radial direction, and a drive seat can be provided on the drive disk 140 with a groove 111 that mates with the pin. This also achieves a radial engagement and completes synchronous movement.

[0066] The drive disk 140 comprises a main body, two unlocking portions 140b, and a first abutting portion 140c. The drive disk 140 can be made of various materials, but a preferred option is a metal component (e.g., stainless steel). The unlocking portions 140b are two lugs on the main body 140a, and both the unlocking portions 140b and the main body 140a are flat. This design provides good strength for both the unlocking portions 140b and the main body 140a and simplifies manufacturing (requiring only cutting and minimizing bending steps). The first abutting portion 140c is formed by bending a portion of the drive disk 140 towards the direction of the split-joint seat 150 (specifically, towards the interior of the first mounting groove 151). This first abutting portion 140c is very easy to form, requiring only cutting followed by a bending process.

[0067] The split-type seat 150 is rotatably configured with respect to the base 110. The split-type seat 150 is made of engineering plastic and has a first mounting groove 151 and two locking grooves 152. The first mounting groove 151 has a second abutment portion 153 on its groove wall. Here, the first abutment portion 140c is also located within the first mounting groove 151, and both abutment portions are used to engage with the second energy storage spring 160. Both locking grooves 152 are located on the peripheral sidewall 154 of the split-type seat 150, where the peripheral sidewall 154 refers to the radial sidewall of the split-type seat 150.

[0068] The second energy storage spring 160 is disposed in the first mounting groove 151. Here, the second energy storage spring 160 is a torsion spring, with its two ends (or terminals) abutting against both sides of the first abutment portion 140c and the second abutment portion 153, respectively. When the first abutment portion 140c rotates with the drive disk 140, if the split-locking seat 150 is locked by the locking component 170, the second abutment portion 153 is essentially stationary. The second energy storage spring 160 will then deform to generate energy. When the locking component 170 is unlocked, the second energy storage spring 160 can drive the split-locking seat 150 to quickly switch to the next position. Of course, the second energy storage spring 160 is not limited to a torsion spring; it can also be a compression spring similar to a ring (not a closed ring).

[0069] Two locking components 170 are slidably mounted on the base 110 of the housing and distributed beside the split-and-joint seat 150. Each locking component 170 corresponds to a locking slot 152 and an unlocking part 140b. The locking component 170 and its corresponding locking slot 152 have unlocked and locked states. Here, each locking component 170 is elastic, and the rotation center of the split-and-joint seat 150 is a first imaginary center P. The angle between the first imaginary line connecting the two locking slots 152 to the first imaginary center P is a first included angle A (for example, 90°, but not specifically 90°; any angle that ensures sufficient opening distance between the moving and stationary contacts of the switch layer 200 is acceptable, as the first included angle A determines the rotation angle of the lower moving contact plate). The angle between the second imaginary line connecting the two locking components 170 to the first imaginary center P is a second included angle B (for example, 180°, but not specifically 180°; any angle larger than the first included angle A is acceptable). Of course, here, the angle between the three imaginary lines connecting the two unlocking parts 140b to the first imaginary center P is the third angle C, and the second angle B is also greater than the third angle C. The specific setting of the third angle C here can be set according to the position of the unlocking part 140b, as long as it can ensure that the unlocking part 140b unlocks the locking component 170.

[0070] Therefore, when one set of locking components 170 is locked, the other set is unlocked. As the drive shaft 130 rotates, the second energy storage spring 160 deforms under the action of the first abutment part 140c. After the unlocking part 140b triggers the locking component 170 that was originally locked to unlock, the split-joint seat 150 rotates rapidly to the next position under the action of the second energy storage spring 160, and the locking component 170 that was originally unlocked is locked. As long as either locking component 170 is locked, the split-joint seat 150 is effectively locked to the outer shell. That is, the split-joint seat 150 is stationary relative to the outer shell. Only when the locking component 170 is unlocked can the split-joint seat 150 rotate relative to the outer shell.

[0071] Here, as Figure 8-10As shown, when the lower switch layer 200 is in the open state (when it is to be closed), the open locking component 170a is in the locked state, and the close locking component 170b is in the unlocked state. When the drive shaft 130 rotates clockwise, the first abutment part 140c rotates, causing the second energy storage spring 160 to deform. As the unlocking part 140b on the left triggers the open locking component 170a to unlock it (that is, the distance from the start of rotation to the unlocking part 140b contacting the open locking component 170a is called the predetermined distance), the open / close seat 150 rotates quickly to the closed position under the action of the second energy storage spring 160. At this time, the close locking component 170b aligns with the locking groove 152, and the locking component 170 partially enters the close locking component 170b under the action of its own elastic force to form a lock. Of course, if you want to open the switch layer 200, you can use a similar operation, simply rotate the drive shaft 130 in the opposite direction. The process is exactly the opposite of the closing process described above, and will not be described again here.

[0072] By employing two sets of locking structures, only one set of locking components 170 is driven by the unlocking part 140b during both closing and opening operations. Therefore, the wear on the locking components 170 is relatively small, resulting in better reliability of the mechanism.

[0073] Here, the two sets of locking components 170 are essentially identical in configuration. Taking one set of locking components 170 as an example, it includes a locking member 171 and a spring plate 172. The locked state means that the locking member 171 is at least partially within the locking groove 152 to restrict the rotation of the engagement seat 150. The unlocked state means that the locking member 171 is completely disengaged from the locking groove 152. When in the unlocked state, the spring plate 172 is in a deformed state and applies a biasing force to the locking member 171 in the direction of the engagement seat 150. Only when the locking groove 152 rotates with the engagement seat 150 to align with the corresponding locking member 171, the locking member 171 returns to the locked state under the action of the biasing force.

[0074] The spring plate 172 includes a first plate portion 172a, a bent portion 172b, and a second plate portion 172c. The first plate portion 172a and the second plate portion 172c are connected by the bent portion 172b. The first plate portion 172a is fixed to the outer casing, and the second plate portion 172c passes through the locking member 171 and engages with the locking member 171. With this three-part arrangement, the first plate portion 172a can be used to fix it to the outer casing, and the second plate portion 172c and the bent portion 172b can be used to provide biasing force to the locking member 171.

[0075] Here, the first plate portion 172a can be fastened in many ways. For example, it can be fixed to the base 110 with fasteners (screws, etc.), or it can be interference-fitted with the base 110. As a preferred method, the base 110 has a slot 111, and the first plate portion 172a forms an interference fit with the slot 111. This fit makes the machining of both the base 110 and the first plate portion 172a relatively easy, and the assembly is also convenient.

[0076] Here, the spring plate 172 can be designed in various shapes, such as S-shaped or U-shaped. Taking the U-shaped shape as an example, the length of the second plate portion 172c is greater than the length of the first plate portion 172a. The first plate portion 172a and the second plate portion 172c are connected on the same side of the bent portion 172b, so that the three form a semi-enclosed first space F. In this way, the protruding rib 112, which constitutes part of the slot 111, is located in the first space F. This arrangement ensures that the spring plate 172 and the base 110 fit tightly, ensuring the installation stability of the spring plate 172.

[0077] Here, the sliding of the locking member 171 refers to its sliding relative to the base 110, and there are many forms of sliding. It can be a rotational sliding, for example, with a positioning shaft provided on the base 110, and the locking member 171 rotating around the positioning shaft. Another example is linear sliding (moving along a straight line), with a guide rib 113 provided on the base 110, and the locking member 171 sliding linearly along the guide rib 113.

[0078] The position detection switch K100 is a mechanical switch. It has a first state and a second state, which correspond to the closing and opening positions of the switch block 150, respectively.

[0079] Here, the position detection switch K100 is located on one side of the split-connect energy storage mechanism 10, and its state is switched by the action of the split-connect energy storage mechanism 10.

[0080] This structure links the position detection switch K100 with the energy storage mechanism 10, making the signal feedback more intuitive and better reflecting the true state of the moving contact plate below.

[0081] The following two methods are included as ways to change the position detection switches K100 of the 10 pairs of energy storage mechanisms.

[0082] Method 1 involves direct triggering via the switchgear 150. Specifically, a trigger protrusion 150a is provided on the circumferential sidewall of the switchgear 150. When the switchgear 150 is in the open position, the trigger protrusion 150a triggers the position detection switch K100, thus changing the state of the position detection switch K100. For example, the position detection switch K100, which is normally open (first state), becomes closed (second state) after being triggered. In this way, by changing the opening and closing state of the position detection switch K100, different electrical levels can be output, allowing the determination of the state of the switchgear 150 and consequently the state of the moving contact plate below.

[0083] Of course, as an alternative, the position detection switch K100 can be triggered by the protrusion 150a when the switch 150 is in the closed position. Alternatively, the position detection switch K100 can be normally closed (first state), and change to the open state (second state) when triggered. As long as the position detection switch K100 can be in both triggered and untriggered states, signal feedback can be achieved sequentially to determine the state of the switch 150 (the state of the moving contact plate).

[0084] Method two involves triggering via locking component 170. In this method, triggering is achieved through one set of locking components 170. For example, taking the tripping locking component 170a as an example, it is in an unlocked state when the tripping / closing seat 150 is in the closed position, and in a locked state when the tripping / closing seat 150 is in the open position. In these two states, the second plate portion 172c of the spring plate 172 is different (because the shape changes and the position also changes).

[0085] In this configuration, the position detection switch K100 includes a changeover push rod K10, a changeover spring K20, and a micro switch K30.

[0086] The changeover push rod K10 is rotatably connected to the base 110 via a rotating shaft. The changeover spring K20, a torsion spring, is sleeved on the rotating shaft and connected between the base 110 and the changeover push rod K10. One end of the second plate portion 172c of the spring plate 172 contacts the changeover push rod K10. When the tripping locking assembly 170a is in the unlocked state, the changeover push rod K10, under the action of the spring plate 172, moves away from the button of the micro switch K30 (first state), causing the changeover spring K20 to deform. When the tripping locking assembly 170a is in the locked state, the changeover push rod K10 moves towards the button of the micro switch K30 under the action of the second plate portion and contacts the button (second state).

[0087] This structure can also achieve the switching between the two states. Of course, there are many alternatives to this method. For example, the changeover push rod K10 and the changeover spring K20 can be eliminated, and the spring plate 172 can act directly on the micro switch K30. Another example is that when the tripping locking assembly 170a is in the unlocked state, the changeover push rod K10 moves towards and contacts the button of the micro switch K30 under the action of the spring plate 172 (first state), causing the changeover spring K20 to deform; when the tripping locking assembly 170a is in the locked state, the changeover push rod K10 moves away from the button of the micro switch K30 under the action of the changeover spring K20 (second state). Alternatively, the closing locking assembly 170b can be configured to drive the position detection switch K100. When the closing locking assembly 170b is in the unlocked state, the changeover push rod K10, under the action of the spring plate 172, moves away from the button of the micro switch K30, causing the changeover spring K20 to deform. When the closing locking assembly 170b is in the locked state, the changeover push rod K10, under the action of the changeover spring K20, moves towards the button of the micro switch K30 and contacts the button. Alternatively, when the closing locking assembly 170b is in the unlocked state, the changeover push rod K10, under the action of the spring plate 172, moves towards the button of the micro switch K30 and contacts the button, causing the changeover spring K20 to deform. When the closing locking assembly 170b is in the locked state, the changeover push rod K10, under the action of the changeover spring K20, moves away from the button of the micro switch K30.

[0088] In any case, as long as the position detection switch K100 can switch between the first and second states, the feedback of the opening and closing status can be effectively realized.

[0089] Of course, the above-mentioned methods one and two are not mutually exclusive solutions. If space permits, the two methods can be combined for a more reliable response to the situation.

[0090] Here, the signal fed back by the position detection switch K100 can be transmitted out through the signal interface K40.

[0091] The base 110 has a signal interface K40, and the position detection switch K100 is electrically connected to the signal interface K40. In this way, the host computer can be connected to the signal interface K40 through a plug, and the signal transmitted by the position detection switch K100 can reach the host computer.

[0092] Here, to facilitate the detachable assembly and maintenance of the signal interface K40, the base 110 includes a base body 110a and a module housing 110b. The module housing 110b is mounted on one side of the base body 110a, and the two together form a complete base body 110a. The signal interface K40 is fixed to the base body 110a. Here, the base body 110a and the module housing 110b are fastened by clips and screws; of course, a single clip connection or screw fastening can also be used, as long as it is a detachable fixing method.

[0093] The shunt-triggered energy storage mechanism 20 also has energy storage capabilities and is key to achieving shunt tripping (i.e., remote operation).

[0094] The shunt-excitation energy storage mechanism 20 includes a first energy storage spring 210, an energy storage base 220, a locking element 230, a first spring 240, a retaining element 250, and a second spring 260.

[0095] The energy storage base 220 is mounted on the drive shaft 130 and is connected to the drive shaft 130 in a transmission manner, that is, the rotation of the drive shaft 130 can drive the energy storage base 220 to rotate.

[0096] The first energy storage spring 210 is connected between the energy storage base 220 and the outer casing. Specifically, a second mounting groove 220a is provided on the energy storage base 220, and the first energy storage spring 210 is disposed in the second mounting groove 220a, with one end abutting against the energy storage base 220 and the other end abutting against the upper cover 105 of the outer casing. In this way, the first energy storage spring 210 can also store energy during the period when the drive shaft 130 drives the opening and closing energy storage mechanism 10 to perform the closing operation. Here, the first energy storage spring 210 is selected as a torsion spring, but it can also be selected as a ring (non-closed ring) compression spring.

[0097] The locking element 230 is slidably disposed with respect to the outer casing, specifically along the first linear direction X1, and has a locked state and an unlocked state. When in the locked state, it restricts the rotation of the energy storage base 220 so that the first energy storage spring 210 retains energy storage. The specific implementation of this locking state is as follows: a locking groove 220b is provided on the circumferential sidewall of the energy storage base 220, and a locking boss 230a is provided on the locking fastener 230. During the closing operation of the energy storage mechanism 10 driven by the drive shaft 130, the energy storage base 220 rotates with the drive shaft 130 (the first energy storage spring 210 stores energy). The locking groove 220b of the energy storage base 220 gradually moves to align with the locking boss 230a. Under the action of the first spring 240 (the first spring 240 provides a biasing force to the locking fastener 230 to restore it to the locked state), the locking boss 230a extends into the locking groove 220b, thereby completing the locking state (of course, this locking state needs to be maintained by the retainer 250).

[0098] The retaining member 250 is slidably disposed with respect to the outer casing, specifically along the second linear direction X2. The retaining member 250 has a first position Z1 that holds the locking member 230 in the locked state and a second position Z2 that releases the holding of the locking member 230. Here, the locking member 230 is provided with a first abutting wall 230b, and the retaining member 250 is provided with a second abutting wall 250a. When the retaining member 250 is in the first position Z1, the first abutting wall 230b and the second abutting wall 250a abut against each other, which is equivalent to blocking the "retreat path" (moving towards the unlocked state) of the locking member 230, thus ensuring that the locking member 230 is stably in the locked state. The second position Z2 means that the retaining member 250 will no longer obstruct the movement of the locking member 230, so the locking member 230 can move to the unlocked state (the force pushing the locking member 230 to move is specifically: the first energy storage spring 210 causes a reaction force to rotate the energy storage seat 220, the locking groove 220b of the energy storage seat 220 will disengage from the locking boss 230a, the locking boss 230a slides under the push of the circumferential side wall of the energy storage seat 220, and the first spring 240 will gradually compress). There are many specific ways to form the first abutment wall 230b and the second abutment wall 250a. The first abutment wall 230b and the second abutment wall 250a can be part of two protruding structures; or, as in this embodiment, the first abutment wall 230b can be part of a protruding structure and the second abutment wall 250a can be part of a groove structure; or the first abutment wall 230b can be part of a groove structure and the second abutment wall 250a can be part of a protruding structure. The first abutment wall 230b and the locking boss 230a are respectively located on different surfaces of the locking member 230.

[0099] One end of the second spring 260 abuts against the retainer 250, and the other end abuts against the outer casing. Here, the second spring 260 provides a biasing force to the retainer 250 toward the first position Z1. This biasing force toward the first position Z1 can be manifested in two ways: First, when the trip unit 300 resets, this biasing force causes the retainer 250 to slide to the first position Z1. Second, when the trip unit 300 is not actuated, it ensures that the retainer 250 is stably in the first position Z1 (and will not disengage from the first position Z1 due to the reaction force of the locking member 230).

[0100] Both the first spring 240 and the second spring 260 are compression springs. Of course, in addition to these, torsion springs, spring sheets, or elastic plastic feet integrated with the locking element 230 and the retaining element 250 can also be used.

[0101] The first straight line direction X1 and the second straight line direction X2 are set at an angle. In this embodiment, they are set perpendicularly, which facilitates space utilization and assembly. Of course, an acute or obtuse angle can also be chosen.

[0102] The trip unit 300, in this embodiment, is a flux trip unit, which essentially utilizes the principle of electromagnetism. When the coil receives a trip signal, it is actuated. The actuating part 300a of the trip unit 300 is the push rod of the trip unit 300. Since the retaining member 250 is arranged on the side of the actuating part 300a of the trip unit 300, after the trip unit 300 is actuated, it will drive the retaining member 250 to move to the second position Z2. In this way, the retaining member 250 will no longer hold the locking member 230, and the locking member 230 will release the lock on the energy storage base 220. Due to the rotation of the first energy storage spring 210, the drive shaft 130 drives the opening and closing energy storage mechanism 10 to perform the opening operation.

[0103] There are many ways to achieve the cooperation between the retaining member 250 and the actuating part 300a of the trip unit 300. One approach is to include a driving part 250b extending along the movement trajectory of the actuating part 300a of the trip unit 300. Here, the driving part 250b is essentially a boss; when the trip unit 300 is actuated, the driving part 250b is pushed to move the retaining member 250. In this approach, the driving part 250b and the second abutment wall 250a are located on different surfaces of the retaining member 250. This design of the driving part 250b allows the retaining member 250 to be positioned on one side of the actuating part 300a of the trip unit 300; only one driving part 250b needs to extend to one side. This facilitates the overall installation design of the retaining member 250 and makes full use of the space within the housing.

[0104] There are many ways to provide the trip signal here. For example, it can be provided by the host computer through the communication interface, or it can be provided by the control circuit board of the disconnect switch itself. Either way is acceptable.

[0105] With this structure, both the locking element 230 and the retaining element 250 are slidably arranged along a straight line. Compared with the rotational arrangement in the prior art, this structure does not require additional rotating shafts or simplified component shapes. It only needs to satisfy the locking and unlocking of the energy storage base 220 by the locking element 230 and the retaining and unlocking of the locking element 230 by the retaining element 250.

[0106] For the trip unit 300, its reset after actuation is achieved via the reset lever 270 and the third spring 280. The reset lever 270 and the third spring 280 also form part of the shunt energy storage mechanism 20. In this structure, the reset lever 270 is linearly slidable, with the sliding direction parallel to the actuation direction of the electromagnetic trip unit 300. In this configuration, the reset lever 270, driven by the energy storage base 220, slides to the third position Z3 and pushes the actuated trip unit 300 to reset. In other words, during the opening operation of the opening / closing base 150, the reset lever 270 resets the trip unit 300.

[0107] Here, the third spring 280 abuts between the reset rod 270 and the housing, storing energy when the reset rod 270 slides to the third position Z3. The reset rod 270 and the energy storage base 220 are not always connected; the connection is only established during the rotation of the energy storage base 220 due to the rotation of the first energy storage spring 210 (i.e., during the opening operation). During the closing operation (when the energy storage base 220 rotates due to the rotation of the drive shaft 130), the two can disengage, and the reset rod 270 returns to the fourth position Z4 under the action of the third spring 280.

[0108] The main way to achieve this non-continuous engagement is to have a meshing part I 271 on the reset rod 270 and a meshing part II 221 on the energy storage seat 220. Here, the meshing part II 221 is a fan-shaped tooth and the meshing part II 221 is a strip-shaped tooth. Both have a relatively small number of teeth, for example, two. Of course, in addition to two, three, four or more can be used, as long as the reset rod 270 and the energy storage seat 220 can disengage after moving a certain distance. The actual setting can be based on the rotation angle of the energy storage seat 220, as long as the distance of the meshing transmission between the two does not exceed 3 / 4 of the total stroke of the energy storage seat 220.

[0109] The reset lever 270 includes a reset part 270a, a transmission part 270b, and an assembly part 270c.

[0110] The reset part 270a is used to cooperate with the trip, that is, the reset part 270a is located on one side of the actuation part 300a of the trip unit 300. The third position Z3 mentioned above is the direction in which the reset part 270a faces the actuation part 300a, and the fourth position Z4 is the direction in which the reset part 270a moves away from the actuation part 300a.

[0111] The engagement part I 271 is provided on the transmission part 270b.

[0112] The assembly part 270c is used to assemble with the housing and is also the part that the third spring 280 abuts against.

[0113] This structure allows each part of the reset lever 270 to have its own function, which simplifies the complexity of the reset lever 270 and is beneficial to the design of this sliding reset lever 270.

[0114] The trip unit 300 is also fixed on the module housing 110b, which facilitates the maintenance of the trip unit 300.

[0115] To enable manual operation of the disconnecting switch after the shunt excitation energy storage mechanism 20 has completed energy storage, the drive shaft 130 and the energy storage base 220 are connected in a unidirectional transmission. This unidirectional transmission connection means that the transmission connection is only formed when the drive shaft 130 drives the energy storage mechanism 10 to perform the closing operation and when the energy storage base 220 rotates due to the first energy storage spring 210. This unidirectional transmission connection structure is achieved through a first abutment structure on the drive shaft 130 and a second abutment structure on the energy storage base 220. There are many specific implementation methods; taking the first abutment structure as an example, a transmission pin 135 is used, specifically, the transmission pin 135 passes radially through the drive shaft 130 to form two protruding ends. The second abutment structure is the abutment surface 220c of two protrusions (or the two abutment surfaces 220c of the groove) on the energy storage base 220. When the transmission pin 135 abuts against the abutment surface 220c, a transmission is formed (only during the period when the drive shaft 130 drives the opening and closing energy storage mechanism 10 to perform the closing operation and during the period when the energy storage base 220 rotates due to the first energy storage spring 210). The reverse rotation of the drive shaft 130 can realize manual opening (also called manual opening operation when the shunt excitation energy storage mechanism 20 is in the energy storage state). Of course, it can also be closed again (also called manual closing operation when the shunt excitation energy storage mechanism 20 is in the energy storage state).

[0116] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0117] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A status detection structure for a disconnecting switch, comprising a housing, characterized in that: It also includes, The drive shaft is configured to rotate around an axis. The split-connect energy storage mechanism includes a drive disk, a split-connect base, a second energy storage spring, and a locking assembly; The drive disc and drive shaft are configured to rotate synchronously, and the drive disc has an unlocking mechanism. The switchgear is rotatable and is linked to the moving contact of the switch unit layer. The switchgear has an open position and a closed position. The locking component has a locked state that locks the engagement seat to the housing and an unlocked state that releases the lock. The second energy storage spring connects the drive disc and the split / engagement seat; In the initial stage of drive shaft rotation, the locking component is in a locked state. As the drive disc rotates, the second energy storage spring stores energy. After the unlocking part of the drive disc contacts the locking component to unlock it, the split-lock seat quickly switches positions under the action of the second energy storage spring. The position detection switch has a first state and a second state, which correspond to the switch being in the closed position and the switch being in the open position, respectively. The position detection switch is located on one side of the switch-open energy storage mechanism and its state is switched by the action of the switch-open energy storage mechanism.

2. The state detection structure for a disconnecting switch according to claim 1, characterized in that: The circumferential sidewall of the switch is provided with a trigger protrusion. When the switch is in the open position, the trigger protrusion triggers the position detection switch, thereby changing the state of the position detection switch. Alternatively, a trigger protrusion may be provided on the circumferential sidewall of the switching seat. When the switching seat is in the closed position, the trigger protrusion triggers the position detection switch, thereby changing the state of the position detection switch.

3. The state detection structure for a disconnecting switch according to claim 1, characterized in that: The locking components consist of two sets: one set locks the switch when it is in the open position, and the other set locks it when it is in the closed position. The position detection switch corresponds to one of the locking components. It presents a first state when the locking component is locked and a second state when the locking component is unlocked.

4. The state detection structure for a disconnecting switch according to claim 3, characterized in that: The locking assembly corresponding to the position detection switch includes a spring plate and a locking element, the locking element being rotatable or slidable relative to the housing; the position detection switch includes a movable changeover push rod, a changeover spring, and a micro switch. The shape of the spring plate is different when the locking component is in the locked state and the unlocked state; the changeover push rod is in contact with the spring plate of the corresponding locking component, and the changeover spring is connected to the changeover push rod; the first state and the second state are respectively: one is that the changeover push rod acts on the button of the micro switch, and the other is that the changeover push rod disengages from the button of the micro switch; the switching between the first state and the second state is achieved by changing the position of the spring plate and the changeover spring.

5. The state detection structure for a disconnecting switch according to claim 4, characterized in that: The locking component corresponding to the position detection switch is the trip locking component; when the trip locking component is in the unlocked state, the changeover push rod leaves the button of the micro switch under the action of the spring plate, and causes the changeover spring to deform; when the trip locking component is in the locked state, the changeover push rod moves toward the button of the micro switch under the action of the changeover spring and contacts the button. Alternatively, the locking component corresponding to the position detection switch is a tripping locking component; when the tripping locking component is in the unlocked state, the changeover push rod moves toward the button of the micro switch under the action of the spring plate and contacts the button, causing the changeover spring to deform; when the tripping locking component is in the locked state, the changeover push rod leaves the button of the micro switch under the action of the changeover spring. Alternatively, the locking component corresponding to the position detection switch is a closing locking component; when the closing locking component is in the unlocked state, the changeover push rod leaves the button of the micro switch under the action of the spring plate, and causes the changeover spring to deform; when the closing locking component is in the locked state, the changeover push rod moves towards the button of the micro switch under the action of the changeover spring and contacts the button. Alternatively, the locking component corresponding to the position detection switch is a closing locking component; when the closing locking component is in the unlocked state, the changeover push rod moves toward the button of the micro switch under the action of the spring plate and contacts the button, causing the changeover spring to deform; when the closing locking component is in the locked state, the changeover push rod leaves the button of the micro switch under the action of the changeover spring.

6. The state detection structure for a disconnector according to claim 5, characterized in that: The spring plate includes a first plate, a bent portion, and a second plate. The first plate and the second plate are connected by the bent portion. The first plate is snapped into the housing, and the second plate passes through a locking member and engages with the locking member. The second plate is used to contact the changeover push rod.

7. The state detection structure for a disconnecting switch according to claim 1, characterized in that: The housing has a signal interface, which is electrically connected to the position detection switch.

8. The state detection structure for a disconnecting switch according to claim 6, characterized in that: The outer casing includes a base; the base includes a base body and a module housing, the module housing and the base body are detachably fitted, and the signal interface is fixed on the module housing.

9. The state detection structure for a disconnecting switch according to claim 7, characterized in that: It also includes a shunt-excitation energy storage mechanism and a trip unit, the trip unit being fixed to the module housing; the shunt-excitation energy storage mechanism includes a first energy storage spring, an energy storage base, a locking element, a first spring, a retaining element, a second spring, a third spring, and a reset rod that slides linearly; the energy storage base is sleeved on the drive shaft and is unidirectionally connected to the drive shaft; the first energy storage spring is connected between the energy storage base and the housing, storing energy during the closing operation of the energy storage mechanism driven by the drive shaft; the locking element is slidably arranged along a first linear direction, having a locked state and an unlocked state; when in the locked state, it restricts the rotation of the energy storage base so that the first energy storage spring retains the stored energy; the first spring provides a biasing force to the locking element to restore it to the locked state; the retaining element is slidably arranged along a second linear direction, having a first position for holding the locking element in the locked state. The mechanism sets and releases the second position held by the locking element; the second spring provides a biasing force to the retaining element towards the first position; after the trip unit is actuated, it causes the retaining element to move to the second position, the locking element releases the energy storage base, and the energy storage base rotates due to the first energy storage spring, causing the drive shaft to drive the opening and closing energy storage mechanism to perform the opening operation; the first linear direction is set at an angle to the second linear direction; the reset rod has a third position and a fourth position; the reset rod has a biting part I, and the energy storage base has a biting part II. During the rotation of the energy storage base due to the first energy storage spring, the biting part I and the biting part II form a transmission, and the reset rod slides to the third position and pushes the actuated trip unit to reset; during the closing operation of the opening and closing energy storage mechanism, the biting part I and the biting part II disengage, and the reset rod returns to the fourth position under the action of the third spring.

10. The state detection structure for a disconnecting switch according to claim 9, characterized in that: A first abutting structure is provided on the drive shaft, and a second abutting structure is provided on the energy storage base. The first abutting structure and the second abutting structure form a one-way transmission. The one-way transmission is as follows: when the drive shaft drives the energy storage mechanism to perform a closing operation, the first abutting structure abuts against the second abutting structure, and when the energy storage base rotates due to the rotation of the first energy storage spring, the second abutting structure abuts against the first abutting structure. After the energy storage mechanism completes the closing operation, the drive shaft is rotated in the opposite direction to cause the energy storage mechanism to perform a closing operation. During this period, the first abutting structure does not form a transmission with the second abutting structure.

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