A switch and a switch system

Abstract

The utility model provides a kind of switch and switch system, it is related to electrical equipment technical field.Switch includes base, handle and locking piece, handle is movably arranged in base, handle is used to be connected with contact assembly transmission, to drive contact assembly to close or open;Locking piece includes limiting piece and actuating member, actuating member is arranged in handle and is transmission matched with limiting piece, and under the contact assembly in open state, actuating member is used to drive limiting piece and base fixed cooperation to lock, or to unlock to separate fixed cooperation, to improve the stability of switch in open state in this way, also effectively avoid the occurrence of misoperation, guarantee the personal safety of equipment operator.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and more specifically, to a switch and a switch system. Background Technology

[0002] Switches, as key components for controlling the on / off state of circuits in power systems, are widely used in various electrical equipment and power distribution systems. The accuracy and reliability of their operation are directly related to the safe operation of the system.

[0003] However, some switches in the existing technology have the risk of misoperation during the opening operation, which seriously affects the safety of use and may even cause safety accidents such as equipment fires and explosions, threatening the personal safety of operators and the stability of the power system. Utility Model Content

[0004] This utility model provides a switch and a switching system that can improve the stability of the switch in the open state, effectively avoid misoperation, and ensure the personal safety of equipment operators.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a switch, comprising:

[0007] Base;

[0008] A handle, which is movably disposed on the base, is used to drive the contact assembly to close or open the circuit breaker;

[0009] A locking element, comprising a limiting element and an actuating element, wherein the actuating element is disposed on the handle and drives the limiting element in a transmission cooperation, and wherein the actuating element is used to drive the limiting element to be fixedly engaged with or disengaged from the base when the contact assembly is in the open state.

[0010] In an optional embodiment, the actuator includes a drive shaft and a transmission body disposed on the drive shaft. The limiting member is provided with a mounting hole, and the limiting member is movably disposed on the drive shaft through the mounting hole. The transmission body is used to rotate under the drive of the drive shaft to drive the limiting member to move axially, so as to fix or disengage from the base.

[0011] In an optional embodiment, the limiting member is further provided with a first abutting part, and the transmission body is provided with a second abutting part. Both the first abutting part and the second abutting part are provided with guide slopes. The first abutting part and the second abutting part abut against each other through the guide slopes to drive the limiting member to move axially.

[0012] In an optional embodiment, the locking member further includes a reset member connected to the limiting member, the reset member being used to give the limiting member a tendency to move away from the base.

[0013] In an optional embodiment, the limiting member is further provided with a bushing, the mounting hole penetrates the bushing, and one end of the resetting member is connected to the bushing through the mounting hole.

[0014] In an optional embodiment, the switch includes an unlocking component, and one end of the drive shaft is provided with a lock cylinder. The unlocking component cooperates with the lock cylinder to drive the drive shaft to rotate.

[0015] In an optional embodiment, when the limiting member is fixedly engaged with the base, the unlocking member and the actuating member are detachably connected;

[0016] When the limiting member is disengaged from the base, the unlocking member is fixedly connected to the actuating member.

[0017] In an optional embodiment, the number of the actuator and the limiting member is at least one. When the number of the actuator and the limiting member is multiple, the multiple actuators and the multiple limiting members are matched one-to-one.

[0018] The unlocking component can cooperate with the lock cylinder of all of the plurality of actuators; or, there are multiple unlocking components, and each of the multiple unlocking components cooperates with the lock cylinder of the plurality of actuators in a one-to-one correspondence.

[0019] In an optional embodiment, the base is provided with a first limiting part, and the limiting member is provided with a second limiting part. One of the first limiting part and the second limiting part is a through hole or groove structure, and the other is a protrusion or rod structure. When the handle drives the contact assembly to the open state, the first limiting part and the second limiting part correspond to each other and can be fitted together for fixed cooperation, or separated to disengage from the fixed cooperation.

[0020] In an optional embodiment, there are multiple first limiting parts and multiple second limiting parts, and the multiple first limiting parts and multiple second limiting parts are fixedly engaged in a one-to-one correspondence.

[0021] Secondly, this utility model provides a switching system, including a switch as described in any of the foregoing embodiments.

[0022] The beneficial effects of the switch and switching system provided in this embodiment of the present invention include: when the contact assembly is in the open state, the transmission cooperation between the actuator and the limiting member allows the limiting member to be fixedly connected to the base under the drive of the actuator, thereby locking the position of the handle and preventing displacement of the handle due to external vibration or other unexpected factors, which could lead to accidental triggering of the closing action. This not only improves the stability of the switch in the open state but also effectively avoids misoperation and ensures the personal safety of the equipment operators. Furthermore, the limiting member and the base can be released from their fixed cooperation, allowing the switch to return to an operable state for subsequent closing operations. Therefore, the switch provided in this embodiment of the present invention, by setting a locking member, allows the limiting member to achieve a switchable fixed cooperation with the base under the drive of the actuator, thereby mechanically locking the switch when the contact assembly is in the open state, significantly improving the safety and controllability of operation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the first embodiment of the switching system provided by this utility model;

[0025] Figure 2 A schematic diagram of a second embodiment of the switching system provided by this utility model;

[0026] Figure 3 A schematic diagram of a third embodiment of the switching system provided by this utility model;

[0027] Figure 4 This is a schematic diagram of the switch installation state structure provided in an embodiment of the present utility model;

[0028] Figure 5 A schematic diagram of the switch structure provided in an embodiment of this utility model;

[0029] Figure 6 A schematic diagram of the locked state of the switch part structure provided in an embodiment of this utility model;

[0030] Figure 7 This is a schematic diagram of the unlocked state of the switch part structure provided in an embodiment of the present utility model;

[0031] Figure 8 This is a schematic diagram of the limiting member structure provided in an embodiment of the present utility model;

[0032] Figure 9 A schematic diagram of the locking and unlocking components provided in the embodiments of this utility model.

[0033] Icons: 10-Switch system; 11-Power supply; 12-Load; 13-Contact assembly; 100-Switch; 1001-First switch; 1002-Second switch; 1003-Third switch; 1004-Fourth switch; 1005-Fifth switch; 110-Base; 111-First limiting part; 120-Handle; 130-Locking element; 1301-First locking element; 1302-Second locking element; 1303-Third locking element; 131-Limiting element; 1311-Mounting hole; 1312-First abutment Part; 1313-Sleeve; 1314-Second Limiting Part; 132-Actuator; 1321-Drive Shaft; 1322-Drive Body; 1323-Second Abutment Part; 1324-Lock Core Part; 133-Reset Part; 140-Unlocking Part; 200-Circuit; 210-First Circuit; 220-Second Circuit; 230-Input Terminal; 240-Output Terminal; 300-Spare Circuit; 310-Third Circuit; 311-First Connection Terminal; 312-Second Connection Terminal; 320-First Branch; 330-Second Branch. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] 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 claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In power systems and various electrical equipment, dual or multiple power supply schemes are typically configured to ensure the continuity and reliability of power supply. When the main power supply fails or is interrupted, the system can automatically switch to the backup power supply to ensure the continuous operation of the load. This is widely used in data centers, medical equipment, industrial automation, and other applications where high power supply continuity is required.

[0041] However, existing switching devices used in circuit systems to control dual or multiple power supply switching have design flaws, which may lead to the simultaneous operation of the main power supply and the backup power supply, resulting in parallel operation of two power supplies. This can not only cause circulating currents, voltage conflicts, or phase interference between power supplies, resulting in equipment damage, but also cause protection devices to malfunction or fail to operate, seriously threatening the safety of the circuit system. In addition, existing switches have complex structures, are difficult to maintain, and cannot meet the requirements of high-reliability power supply systems for fast, safe, and mutually exclusive switching.

[0042] Therefore, there is an urgent need to provide a multi-power supply 11 control switch 100 with a reasonable structure and reliable switching to avoid the simultaneous start-up of multiple power supplies 11 and improve the stability and safety of the power supply system.

[0043] Based on the problems existing in the current technology, please refer to Figure 1 and Figure 2 This utility model provides a switching system 10, including an unlocking component 140, multiple circuits 200, and multiple switches 100.

[0044] At least two of the multiple circuits 200 are provided with an input terminal 230 and an output terminal 240. The input terminals 230 of the at least two circuits 200 are used to connect to the power supply 11, and all the output terminals 240 are connected and used to connect to the load 12.

[0045] In practical applications, one power supply 11 is usually set as the main power supply 11, and the others are backup power supplies 11. When the main power supply 11 fails or loses power, the backup power supply 11 is activated to ensure the normal operation of the power system.

[0046] Multiple switches 100 are respectively set on at least two circuits 200 corresponding to the input terminal 230 and the output terminal 240. In other words, each circuit 200 with an input terminal 230 and an output terminal 240 is equipped with a switch 100 so that the corresponding circuit 200 can be turned on or off by closing or opening the switch 100.

[0047] The unlocking component 140 is used to cooperate with the switch 100 to unlock, so that the switch 100 can control the conduction or disconnection of the corresponding circuit 200; the unlocking component 140 is also used to cooperate with the switch 100 to lock, so that the switch 100 remains in the current state.

[0048] It is worth mentioning that when the corresponding circuit 200 is in the conducting state, the switch 100 and the unlocking device 140 remain in an inseparable state, and in the initial state, all switches 100 are locked in the open state, while one unlocking device 140 can cooperate with multiple switches 100.

[0049] Therefore, when a certain circuit 200 is in the conducting state, the switch 100 corresponding to that circuit 200 remains in an inseparable state from the unlocking member 140. Thus, the switches 100 of other circuits 200 cannot be unlocked by the unlocking member 140 to remain in the open state. This prevents the accidental operation of the switches 100 of other circuits 200 when any circuit 200 is conducting, which would cause the main power supply 11 and the backup power supply 11 to be powered simultaneously. This not only improves the safety of the switching system 10, but also effectively avoids problems such as circulating current, voltage conflict and phase interference caused by the parallel operation of multiple power supplies 11, and ensures the normal operation of the power system.

[0050] When it is necessary to switch circuit 200, the unlocking component 140 unlocks the switch 100 of the corresponding circuit 200, so that the switch 100 changes from the closed state to the open state. After locking the switch 100 in the open state, the unlocking component 140 is used to cooperate with and unlock the switch 100 on the circuit 200 that needs to be turned on, so as to change the switch 100 from the open state to the closed state, thereby turning on the circuit 200 corresponding to the switch 100, thus realizing the switching of circuit 200.

[0051] Therefore, the switching system 10 provided in this embodiment of the present invention achieves mutual exclusion control when switching between different circuits 200 through the cooperation between the unlocking component 140 and the switch 100, ensuring that only one circuit 200 is in the conducting state at any time, thereby improving the stability and safety of the power supply system and meeting the actual needs of high reliability power supply scenarios for fast, safe and mutually exclusive switching of the switching system 10.

[0052] Furthermore, such as Figure 1 As shown, the multiple circuits 200 include a first circuit 210 and a second circuit 220. Both the first circuit 210 and the second circuit 220 are provided with an input terminal 230 and an output terminal 240. The input terminal 230 of the first circuit 210 and the input terminal 230 of the second circuit 220 are respectively connected to the main power supply 11 and the backup power supply 11. The output terminal 240 of the first circuit 210 and the output terminal 240 of the second circuit 220 are connected and used to connect to the load 12.

[0053] The multiple switches 100 include a first switch 1001, a second switch 1002, a third switch 1003, a fourth switch 1004, and a fifth switch 1005.

[0054] The first switch 1001 is disposed in the first circuit 210, and the second switch 1002 is disposed in the second circuit 220. The unlocking member 140 is used to cooperate with the first switch 1001 or the second switch 1002 to unlock or lock. When the first circuit 210 is on, the first switch 1001 and the unlocking member 140 remain in an inseparable state, or when the second circuit 220 is on, the second switch 1002 and the unlocking member 140 remain in an inseparable state.

[0055] When the first circuit 210 is in the conducting state, the first switch 1001 and the unlocking member 140 remain in an inseparable state. Therefore, the unlocking member 140 cannot cooperate with the second switch 1002 to perform an unlocking operation, thereby preventing the second switch 1002 from being mistakenly operated to the closed state when the first circuit 210 is conducting. Similarly, when the second circuit 220 is in the conducting state, the second switch 1002 and the unlocking member 140 remain in an inseparable state, preventing the first switch 1001 from being unlocked when the second circuit 220 is conducting, thereby preventing the first switch 1001 from being mistakenly operated to the closed state when the second circuit 220 is conducting.

[0056] This design ensures that the switching system 10 allows only one circuit 200 to be turned on at any given time, effectively avoiding safety hazards such as circulating current, voltage conflict, or phase interference caused by the simultaneous operation of the main power supply 11 and the backup power supply 11.

[0057] Specifically, both the first switch 1001 and the second switch 1002 are provided with a second locking member 1302, and the unlocking member 140 includes a second unlocking member, which cooperates with the second locking member 1302.

[0058] In other words, both the first switch 1001 and the second switch 1002 are provided with the same second locking member 1302. Therefore, the first switch 1001 can be locked or unlocked, or the second switch 1002 can be locked or unlocked, simply by using a second unlocking member that cooperates with the second locking member 1302.

[0059] For example, in the initial state, both the first switch 1001 and the second switch 1002 are in the open state, and the second locking member 1302 is in the locked state. If it is necessary to convert the first switch 1001 to the closed state, the first unlocking member can be used to unlock the first switch 1001 so that the first switch 1001 can be converted to the closed state and locked. Since the second unlocking member cannot be disengaged from the first switch 1001 in the closed state, the second switch 1002 cannot be unlocked by the second unlocking member. Therefore, it is avoided that the second switch 1002 will also be closed due to misoperation when the first switch 1001 is in the closed state.

[0060] Furthermore, in order to further improve the emergency response capability of the switching system 10, the switching system 10 also includes a backup circuit 300. The backup circuit 300 includes a third circuit 310. The third circuit 310 is provided with a first connection terminal 311 and a second connection terminal 312. The first connection terminal 311 is used to connect to the emergency power supply 11, and the second connection terminal 312 is connected to the output terminal 240 of the first circuit 210 and the second circuit 220.

[0061] For example, in practical applications, the first connection terminal 311 is reserved with a port for connection to the emergency power supply 11. If the main power supply 11 or the backup power supply 11 fails during the operation of the switching system 10, the first connection terminal 311 can be connected to the emergency power supply 11, so that the stable operation of the power system can still be ensured through the emergency power supply 11 even if both the main power supply 11 and the backup power supply 11 fail.

[0062] It is understandable that, in order to control the third circuit 310 to be turned on or off, such as... Figure 2 As shown, a fifth switch 1005 is provided on the third circuit 310.

[0063] In this embodiment, the unlocking component 140 includes a first unlocking component, a second unlocking component, and a third unlocking component. The first switch 1001 cooperates with the first and second unlocking components to lock or unlock. The second switch 1002 cooperates with the second and third unlocking components to lock or unlock. The fifth switch 1005 cooperates with the first and third unlocking components to lock or unlock.

[0064] Therefore, the first unlocking component, the second unlocking component, and the third unlocking component can only cooperate with one of the switches at a time to unlock it, thereby enabling that switch to close and ensuring that the other switches remain open and cannot be closed.

[0065] For example, when the first and second unlocking components are engaged with the first switch, the second switch cannot be unlocked by engaging the second unlocking component, and the third switch cannot be unlocked by engaging the first unlocking component; when both the second and third unlocking components are engaged with the second switch, the first switch cannot be unlocked by engaging the second unlocking component, and the third switch cannot be unlocked by engaging the third unlocking component; when both the first and third unlocking components are engaged with the third switch, the first switch cannot be unlocked by engaging the first unlocking component, and the second switch cannot be unlocked by engaging the third unlocking component.

[0066] To further improve the safety of the switching system 10, such as Figure 3 As shown, the backup circuit 300 also includes a first branch 320, the two ends of which are connected to the input terminal 230 and the first connection terminal 311 of the first circuit 210, respectively. The first branch 320 is provided with a third switch 1003. The unlocking component 140 includes a first unlocking component, a second unlocking component, and a third unlocking component. The first switch 1001 works together with the first unlocking component and the second unlocking component to lock or unlock. The second switch 1002 works together with the second unlocking component and the third unlocking component to lock or unlock. The third switch 1003 works with the third unlocking component.

[0067] Specifically, the first switch 1001 cooperates with the first unlocking component and the second unlocking component to be in an unlocked state, so that the first switch 1001 can be closed to realize the conduction of the first circuit 210. The second switch 1002 cooperates with the second unlocking component and the third unlocking component to be in a locked state, so as to ensure that the second switch 1002 remains in an open state. The third switch 1003 cooperates with the third unlocking component to be in a locked state, so as to keep the third switch 1003 in an open state. The third switch 1003 can also cooperate with the third unlocking component to be in an unlocked state, so as to enable the third switch 1003 to be closed.

[0068] It should be noted that in actual operation, after locking the third switch 1003 to the open state by the third unlocking component and locking the second switch 1002 to the open state by the second and third unlocking components, the first switch 1001 is unlocked and converted to the closed state by the first and second unlocking components. The operation of other embodiments is the same, and will not be described in detail below.

[0069] Alternatively, in another embodiment, the first switch 1001 cooperates with the first unlocking member and the second unlocking member to be in a locked state, the second switch 1002 cooperates with the second unlocking member and the third unlocking member to be in an unlocked state, and the third switch 1003 cooperates with the third unlocking member to be in a locked state. In this state, the second switch 1002 can be switched from an open state to a closed state with the cooperation of the second unlocking member and the third unlocking member to realize the conduction of the second circuit 220, while the first switch 1001 and the third switch 1003 are both in an open state.

[0070] Alternatively, in another embodiment, the first switch 1001 cooperates with the first unlocking member and the second unlocking member to be in a locked state, the second switch 1002 cooperates with the second unlocking member and the third unlocking member to be in a locked state, and the third switch 1003 cooperates with the third unlocking member to be in an unlocked state. In this state, the third switch 1003 can be switched from an open state to a closed state with the cooperation of the third unlocking member to realize the conduction of the first branch 320 and the first circuit 210, thereby realizing the connection of the emergency power supply 11. The second switch 1002 is in an open state.

[0071] It is worth mentioning that the circuit where the emergency power supply 11 is located can be connected at the same time as the circuit where the main power supply 11 is located. Of course, the circuit where the emergency power supply 11 is located can also be connected at the same time as the circuit where the backup power supply 11 is located.

[0072] An inverter or solid-state conversion circuit can be installed on the backup circuit 300 to optimize the power supply 11 input line, making the power supply 11 operate more stably.

[0073] Furthermore, the backup circuit 300 also includes a second branch 330, which is equipped with a fourth switch 1004. The unlocking component 140 includes a first unlocking component, a second unlocking component, and a third unlocking component. The first switch 1001 works together with the first and second unlocking components to lock or unlock. The second switch 1002 works together with the second and third unlocking components to lock or unlock. The fourth switch 1004 works with the first unlocking component.

[0074] Thus, by using only three unlocking components 140, namely the first unlocking component, the second unlocking component, and the third unlocking component, the locking and unlocking of four switches 100, namely the first switch 1001, the second switch 1002, the third switch 1003, and the fourth switch 1004, can be achieved.

[0075] Specifically, the first switch 1001 cooperates with the first unlocking component and the second unlocking component to be in the unlocked state so as to be able to switch to the closed state; the second switch 1002 cooperates with the second unlocking component and the third unlocking component to be in the locked state and in the open state; the third switch 1003 cooperates with the third unlocking component to be in the locked or unlocked state; and the fourth switch 1004 cooperates with the first unlocking component to be in the locked state and in the open state.

[0076] Alternatively, in another embodiment, the first switch 1001 cooperates with the first unlocking member and the second unlocking member to be in a locked state and in a closed state, the second switch 1002 cooperates with the second unlocking member and the third unlocking member to be in an unlocked state so as to be able to switch to a closed state, the third switch 1003 cooperates with the third unlocking member to be in a locked state and in a closed state, and the fourth switch 1004 cooperates with the first unlocking member to be in a locked or unlocked state.

[0077] Alternatively, in another embodiment, the first switch 1001 cooperates with the first unlocking member and the second unlocking member to be in a locked state, and the second switch 1002 cooperates with the second unlocking member and the third unlocking member to be in a locked state, so as to be able to be converted to a closed state; in this embodiment, the third switch 1003 and the fourth switch 1004 can be closed simultaneously, or only one of them can be closed. For example, the third switch 1003 cooperates with the third unlocking component to be in the unlocked state, and the fourth switch 1004 cooperates with the first unlocking component to be in the unlocked state. At this time, both the third switch 1003 and the fourth switch 1004 can be closed. Alternatively, only the third switch 1003 can be cooperated with the third unlocking component to be in the unlocked state, and the fourth switch 1004 can be cooperated with the first unlocking component to be in the locked state. At this time, the third switch 1003 can be closed, while the fourth switch 1004 is in the open state. Or, only the fourth switch 1004 can be cooperated with the first unlocking component to be in the unlocked state, and the third switch 1003 can be cooperated with the third unlocking component to be in the locked state. At this time, the fourth switch 1004 can be closed, while the third switch 1003 is in the open state.

[0078] Furthermore, the first switch 1001 is provided with a first locking element 1301 and a second locking element 1302, the second switch 1002 is provided with a second locking element 1302 and a third locking element 1303, the third switch 1003 is provided with a third locking element 1303, and the fourth switch 1004 is provided with a first locking element 1301.

[0079] Wherein, the first locking member 1301 cooperates with the first unlocking member, the second locking member 1302 cooperates with the second unlocking member, and the third locking member 1303 cooperates with the third unlocking member. The first switch 1001 is unlocked or locked when the first locking member 1301 cooperates with the unlocking member 140 and the second locking member 1302 cooperates with the second unlocking member. The second switch 1002 is unlocked or locked when the second locking member 1302 cooperates with the second unlocking member and the third locking member 1303 cooperates with the third unlocking member.

[0080] In other words, since there is only one of each of the first, second, and third unlocking components, they can only unlock the first switch 1001 and the third switch 1003 simultaneously, thereby closing the corresponding first and third switches 1001 and preventing the second and fourth switches 1002 from closing as well; or, they can only close the second and fourth switches 1002 simultaneously, preventing the first and third switches 1003 from closing as well.

[0081] It should be noted that the cooperation between the switch 100 and the locking member 130 mentioned in this embodiment can be a plug-in cooperation, a threaded cooperation, or a magnetic cooperation, etc., and no specific limitation is made here.

[0082] Further, please refer to Figures 4 to 9 The switch 100 includes a base 110, a handle 120, and a locking member 130. The handle 120 is movably disposed on the base 110 and is used to drive the contact assembly 13 to close or open. The locking member 130 includes a limiting member 131 and an actuator 132. The actuator 132 is disposed on the handle 120 and drives the limiting member 131. When the contact assembly 13 is in the open state, the actuator 132 is used to drive the limiting member 131 to be fixedly engaged with the base 110 to lock, or to disengage from the fixed engagement to unlock.

[0083] In this embodiment, when the contact assembly 13 is in the open state, the actuator 132 and the limiting member 131, through their transmission cooperation, allow the limiting member 131 to be fixedly connected to the base 110 under the drive of the actuator 132, thereby locking the position of the handle 120 and preventing displacement of the handle 120 due to external vibration or other unexpected factors, which could lead to accidental triggering of the closing action. This not only improves the stability of the switch 100 in the open state but also effectively avoids misoperation, ensuring the personal safety of the equipment operators. Furthermore, the limiting member 131 and the base 110 can be released from their fixed cooperation, allowing the switch 100 to return to an operable state for subsequent closing operations.

[0084] As can be seen, the switch 100 provided in this embodiment of the present invention, by setting a locking member 130, enables the limiting member 131 to achieve switchable fixed cooperation with the base 110 under the drive of the actuator 132, thereby mechanically locking the switch 100 when the contact assembly 13 is in the open state, which significantly improves the safety and controllability of operation.

[0085] Furthermore, the actuator 132 includes a drive shaft 1321 and a transmission body 1322 disposed on the drive shaft 1321. The limiting member 131 is provided with a mounting hole 1311. The limiting member 131 is movably disposed on the drive shaft 1321 through the mounting hole 1311. The transmission body 1322 is used to rotate under the drive of the drive shaft 1321 to drive the limiting member 131 to move axially, so as to fix and lock with the base 110, or to disengage from the fixed engagement to unlock.

[0086] After the handle 120 is operated to the open position of the contact assembly 13, the drive shaft 1321 drives the drive body 1322 to rotate synchronously. Since the limiting member 131 is movably mounted on the drive shaft 1321 through the mounting hole 1311, the rotational force of the drive body 1322 acts on the limiting member 131, causing it to move axially along the drive shaft 1321. This allows the limiting member 131 to accurately form a fixed engagement with the base 110, thereby achieving a mechanical locking function. When unlocking is required, the drive shaft 1321 rotates in the opposite direction, causing it to move axially in the opposite direction and disengage from the fixed engagement with the base 110, thereby releasing the locked state.

[0087] As can be seen, the rotational motion of the transmission shaft 1321 and the transmission body 1322 is converted into the axial motion of the limiting member 131, realizing a smooth switch between the locked and unlocked states, and further enhancing the controllability and safety of the switch 100 in the open state.

[0088] Furthermore, the limiting member 131 is also provided with a first abutting part 1312, and the transmission body 1322 is provided with a second abutting part 1323. Both the first abutting part 1312 and the second abutting part 1323 are provided with guide slopes. The first abutting part 1312 and the second abutting part 1323 abut with each other through the guide slopes to drive the limiting member 131 to move axially.

[0089] During the locking action, when the handle 120 drives the contact assembly 13 to the open state, the drive shaft 1321 rotates under operation, and the drive body 1322 rotates accordingly and comes into contact with the first abutment portion 1312 on its opposite limiting member 131. Since both the first abutment portion 1312 and the second abutment portion 1323 are provided with guide slopes, when they come into contact, the rotational motion of the drive body 1322 can be effectively converted into linear motion of the limiting member 131 along the axial direction of the drive shaft 1321 through the sliding fit between the slopes, thereby causing the limiting member 131 to move towards the base 110 and form a fixed fit with it.

[0090] Furthermore, the locking member 130 also includes a reset member 133, which is connected to the limiting member 131. The reset member 133 is used to give the limiting member 131 a tendency to move away from the base 110.

[0091] Optionally, the reset member 133 can be a torsion spring. One end of the reset member 133 is fixed to the limiting member 131, and the other end is fixed to the base 110 or the transmission shaft 1321. This allows the torsion spring to store energy during the locking process of the limiting member 131 and release energy during the unlocking process, pushing the limiting member 131 to reset quickly. For example, in this embodiment, the reset member 133 is sleeved on the transmission shaft 1321, with one end abutting against the limiting member 131 and the other end abutting against the end of the transmission shaft 1321. The reset member 133 is located on the side of the limiting member 131 away from the transmission body 1322.

[0092] Furthermore, the limiting member 131 is also provided with a bushing 1313, the mounting hole 1311 passes through the bushing 1313, and one end of the resetting member 133 is connected to the bushing 1313 through the mounting hole 1311.

[0093] In this embodiment, the bushing 1313 provides structural support for the assembly between the limiting member 131 and the transmission shaft 1321, so that the limiting member 131 can be more smoothly fitted onto the transmission shaft 1321 and move stably along the axial direction under the action of the transmission body 1322.

[0094] Furthermore, the switch 100 includes an unlocking component 140, and a lock cylinder 1324 is provided at one end of the drive shaft 1321. The unlocking component 140 cooperates with the lock cylinder 1324 to drive the drive shaft 1321 to rotate.

[0095] In this embodiment, the unlocking component 140, through its cooperation with the lock cylinder 1324, can receive external operation commands (such as key insertion and rotation, special tool drive, or manual knob operation) and convert these operations into rotational motion of the drive shaft 1321. This design allows the operator to precisely drive the drive shaft 1321 to rotate by manipulating the unlocking component 140 when the locked state needs to be unlocked, thereby triggering the displacement of the limiting component 131 and achieving the switch from the locked state to the unlocked state.

[0096] It should also be noted that when the limiting member 131 is fixedly engaged with the base 110, the unlocking member 140 and the actuator 132 are detachably connected; when the limiting member 131 is disengaged from the base 110, the unlocking member 140 and the actuator 132 are fixedly connected.

[0097] In other words, when the locking member 130 locks the handle 120 which is in the open state, the unlocking member 140 can be inserted and removed from the lock cylinder 1324 of the actuator 132, so that the unlocking member 140 can be used to unlock other locking members 130; while when the locking member 130 unlocks the handle 120, the unlocking member 140 and the actuator 132 cannot be inserted and removed, that is, when the handle 120 can be operated to close the circuit, the unlocking member 140 should not be removed and then used with other locking members to unlock, so as to prevent the switches 100 of the two parallel circuits 200 from closing at the same time.

[0098] Furthermore, the number of actuators 132 and limiters 131 is at least one. When the number of actuators 132 and limiters 131 is multiple, the multiple actuators 132 and the multiple limiters 131 are matched one-to-one. The unlocking member 140 can be matched with the lock cylinder portion 1324 of the multiple actuators 132. Alternatively, the number of unlocking members 140 is multiple, and the multiple unlocking members 140 are matched one-to-one with the lock cylinder portion 1324 of the multiple actuators 132.

[0099] In this embodiment, the plurality of unlocking components 140 include a first unlocking component, a second unlocking component, and a third unlocking component, and the plurality of locking components 130 include a first locking component 1301, a second locking component 1302, and a third locking component 1303. The first locking component 1301, the second unlocking component, and the third unlocking component differ only in the structure of the lock cylinder portion 1324. That is, the lock cylinder portion 1324 of the first locking component 1301 can cooperate with the first unlocking component, the lock cylinder portion 1324 of the second locking component 1302 can cooperate with the second unlocking component, and the lock cylinder portion 1324 of the third locking component 1303 can cooperate with the third unlocking component.

[0100] Of course, the number of locking parts 130 and unlocking parts 140 can be other numbers, and no specific limit is made here.

[0101] In detail, the base 110 is provided with a first limiting part 111, and the limiting member 131 is provided with a second limiting part 1314. One of the first limiting part 111 and the second limiting part 1314 is a through hole or groove structure, and the other is a protrusion or rod structure. When the handle 120 drives the contact assembly 13 to be in the open state, the first limiting part 111 and the second limiting part 1314 correspond to each other and can be fitted together for fixed cooperation, or separated to disengage from the fixed cooperation.

[0102] Specifically, in the open state, the limiting member 131 is displaced under the drive of the actuator 132, aligning the second limiting part 1314 with the first limiting part 111 on the base 110. A locking action is then performed to achieve a fixed fit between the two, thereby locking the limiting member 131 onto the base 110, thus restricting the movement of the handle 120 and preventing accidental closing. This fit between the limiting parts, through the structural design of through holes / grooves and protrusions / rods, not only ensures the accuracy and stability of the limiting fit but also provides good assembly adaptability and operational repeatability.

[0103] It is also worth mentioning that a third limiting part (not shown) can be provided on the base 110, so that when the handle 120 drives the contact assembly 13 to be in the closed state, the second limiting part 1314 and the third limiting part are fixedly engaged, thereby locking the handle 120 in the closed state, that is, the switch 100 can also be locked in the closed state.

[0104] Moreover, there are multiple first limiting parts 111 and multiple second limiting parts 1314, and the multiple first limiting parts 111 and multiple second limiting parts 1314 are fixedly fitted in a one-to-one correspondence.

[0105] Therefore, specifically, the arrangement of multiple limiting parts means that the fixed engagement between the limiting member 131 and the base 110 no longer depends on a single limiting point, but rather on the synchronous engagement of multiple limiting parts to jointly bear the locking force, which significantly improves the anti-interference ability of the locking member 130 when subjected to external vibration, impact or operating torque.

[0106] In summary, this utility model provides a switching system 10. When a certain circuit 200 is in a conducting state, the switch 100 corresponding to that circuit 200 remains in an inseparable state with the unlocking member 140. Therefore, the switches 100 of other circuits 200 cannot be unlocked by the unlocking member 140 to remain in an open state. This prevents accidental operation of the switches 100 of other circuits 200 when any circuit 200 is conducting, thus avoiding simultaneous power supply to the main power supply 11 and the backup power supply 11. This not only improves the safety of the switching system 10 but also effectively avoids problems such as circulating current, voltage conflict, and phase interference caused by the parallel operation of multiple power supplies 11, ensuring the normal operation of the power system. When it is necessary to switch circuits 200, the switch 100 of the corresponding circuit 200 is unlocked by the unlocking member 140. This allows switch 100 to switch from the closed state to the open state. After locking switch 100 in the open state, unlocking component 140 is used to cooperate with and unlock switch 100 on the circuit 200 that needs to be connected, thereby changing switch 100 from the open state to the closed state and connecting the circuit 200 corresponding to switch 100. Thus, the switching of circuit 200 is achieved. It can be seen that the switching system 10 provided by this utility model embodiment achieves mutual exclusion control when switching between different circuits 200 through the cooperation between unlocking component 140 and switch 100, ensuring that only one circuit 200 is in the connected state at any time, thereby improving the stability and safety of the power supply system and meeting the actual needs of high reliability power supply scenarios for fast, safe and mutually exclusive switching of switching system 10.

[0107] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A switch, characterized by include: Base (110); A handle (120) is movably disposed on the base (110). The handle (120) is used to drive the contact assembly (13) to close or open the circuit. The locking member (130) includes a limiting member (131) and an actuator (132). The actuator (132) is disposed on the handle (120) and is in transmission cooperation with the limiting member (131). When the contact assembly (13) is in the open state, the actuator (132) is used to drive the limiting member (131) to be fixedly engaged with or disengaged from the base (110).

2. The switch of claim 1, wherein The actuator (132) includes a drive shaft (1321) and a transmission body (1322) disposed on the drive shaft (1321). The limiting member (131) is provided with a mounting hole (1311). The limiting member (131) is movably disposed on the drive shaft (1321) through the mounting hole (1311). The transmission body (1322) is used to rotate under the drive of the drive shaft (1321) to drive the limiting member (131) to move axially, so as to fix or disengage from the base (110).

3. The switch of claim 2, wherein The limiting member (131) is also provided with a first abutting part (1312), and the transmission body (1322) is provided with a second abutting part (1323). Both the first abutting part (1312) and the second abutting part (1323) are provided with guide slopes. The first abutting part (1312) and the second abutting part (1323) abut against each other through the guide slopes to drive the limiting member (131) to move axially.

4. The switch of claim 2, wherein The locking member (130) further includes a reset member (133), which is connected to the limiting member (131). The reset member (133) is used to make the limiting member (131) tend to move away from the base (110).

5. The switch of claim 4, wherein The limiting member (131) is also provided with a bushing (1313), the mounting hole (1311) passes through the bushing (1313), and one end of the resetting member (133) is connected to the bushing (1313) through the mounting hole (1311).

6. The switch of claim 2, wherein The switch includes an unlocking component (140), and a lock cylinder (1324) is provided at one end of the drive shaft (1321). The unlocking component (140) cooperates with the lock cylinder (1324) to drive the drive shaft (1321) to rotate.

7. The switch of claim 6, wherein When the limiting member (131) is fixedly engaged with the base (110), the unlocking member (140) and the actuating member (132) are detachably connected; When the limiting member (131) is disengaged from the base (110), the unlocking member (140) is fixedly connected to the actuating member (132).

8. A switch according to claim 6 or 7, characterised in that The number of the actuator (132) and the limiting member (131) is at least one. When the number of the actuator (132) and the limiting member (131) is multiple, the multiple actuators (132) and the multiple limiting members (131) are matched one-to-one. The unlocking component (140) can cooperate with the lock cylinder (1324) of the plurality of actuators (132); or, there are multiple unlocking components (140), and each of the multiple unlocking components (140) cooperates with the lock cylinder (1324) of the plurality of actuators (132).

9. The switch of claim 1, wherein The base (110) is provided with a first limiting part (111), and the limiting member (131) is provided with a second limiting part (1314). One of the first limiting part (111) and the second limiting part (1314) is a through hole or groove structure, and the other is a protrusion or rod structure. When the handle (120) drives the contact assembly (13) to be in the open state, the first limiting part (111) and the second limiting part (1314) correspond to each other and can be fitted together for fixed cooperation, or separated to disengage from the fixed cooperation.

10. The switch of claim 9, wherein There are multiple first limiting parts (111) and multiple second limiting parts (1314), and the multiple first limiting parts (111) and multiple second limiting parts (1314) are fixedly engaged in a one-to-one correspondence.

11. A switching system (10), characterized by Includes the switch as described in any one of claims 1-10.

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