Change-over switch and circuit system

Abstract

The invention provides a change-over switch and a circuit system, and relates to the technical field of electrical equipment. The change-over switch comprises a plurality of contact systems, two first conductive parts and two second conductive parts. Each contact system has an on state or an off state, and the plurality of contact systems at least comprise a first contact system, a second contact system and a third contact system; the two first conductive pieces are respectively connected with the first contact system and the second contact system; wherein one second conductive piece is connected with the first contact system and the third contact system, and the other second conductive piece is connected with the second contact system and the third contact system, so that switching of a plurality of power supplies in a power utilization system between a series connection state and a parallel connection state can be realized; complex control logic and an additional mechanical structure required in a traditional switching device are avoided, so that the production cost is reduced, the switching efficiency is improved, and the stability and reliability of the whole system are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment, in particular to a switching switch and circuit system. BACKGROUND

[0002] With the development of power electronics technology, the demand for various types of electrical equipment to operate in different voltage level power supply networks is increasing, especially in the field of electric vehicles. Due to the diversification of charging infrastructure and the high demand for charging speed, electric vehicles often face different voltage level charging scenarios in actual use, and it is urgent to realize efficient and reliable voltage adaptation and switching function.

[0003] At present, the mainstream solution mainly includes using voltage converters or inverters for voltage regulation. Among them, although the voltage converter can realize the matching between different voltages, its system structure is complex, the cost of power devices is high, and there is a large loss in the energy conversion process, which leads to low charging efficiency and limited charging speed, making it difficult to meet the fast charging demand. Another solution is to use an inverter for voltage regulation, although its cost is relatively low, but it still needs to configure additional rectification, filtering and control hardware modules, which increases the system volume, weight and overall cost, and its conversion efficiency is limited by switching loss and thermal management capability. In addition, the above-mentioned solutions all rely on external power electronic conversion devices, not only increasing the complexity of the vehicle electrical system, but also affecting the energy utilization efficiency and system reliability. SUMMARY

[0004] The present application provides a switching switch and circuit system which is simple in structure, low in cost and efficient and reliable.

[0005] Embodiments of the present application can be implemented as follows: In a first aspect, the present application provides a switching switch, comprising: a plurality of contact systems, each of the contact systems having a conducting state or a disconnected state, the plurality of contact systems comprising at least a first contact system, a second contact system and a third contact system; two first conductive parts, the two first conductive parts being connected with the first contact system and the second contact system respectively; two second conductive parts, one of the second conductive parts being connected with the first contact system and the third contact system, and the other of the second conductive parts being connected with the second contact system and the third contact system.

[0006] In an optional embodiment, each of the contact systems comprises a first stationary contact and a second stationary contact, the first stationary contact and the second stationary contact being capable of being contacted or separated by a movable contact, so that the contact system can be conducted or disconnected; One end of one of the first conductive members is used for connecting with the circuit, and the other end is connected with the second static contact of the first contact system. One end of the other first conductive member is used for connecting with the circuit, and the other end is connected with the second static contact of the second contact system. One end of one of the second conductive members is used for connecting with the circuit, and the other end is connected with the first static contact of the third contact system and the first static contact of the first contact system in sequence. One end of the other second conductive member is used for connecting with the circuit, and the other end is connected with the second static contact of the third contact system and the first static contact of the second contact system in sequence.

[0007] In an optional embodiment, the first contact system and the second contact system are arranged side by side, so that the first static contact of the first contact system corresponds to the first static contact of the second contact system, and the second static contact of the first contact system corresponds to the second static contact of the second contact system. The third contact system is arranged perpendicularly at one end of the first contact system and the second contact system.

[0008] In an optional embodiment, the plurality of contact systems further comprises a fourth contact system, the fourth contact system is arranged side by side with the third contact system, so that the first static contact of the fourth contact system corresponds to the first static contact of the third contact system, and the second static contact of the fourth contact system corresponds to the second static contact of the third contact system. One of the second conductive members is connected with the first static contact of the fourth contact system, the first static contact of the third contact system, and the first static contact of the first contact system in sequence. The other second conductive member is connected with the second static contact of the fourth contact system, the second static contact of the third contact system, and the first static contact of the second contact system in sequence.

[0009] In an optional embodiment, the switch further comprises a plurality of driving mechanisms. Each of the contact systems is connected with one of the driving mechanisms, and the driving mechanisms are used for driving the contact systems to close or open.

[0010] In an optional embodiment, the contact system further comprises at least two driving mechanisms. One of the driving mechanisms is connected with the first contact system and the second contact system, and is used for driving the first contact system and the second contact system to close or open synchronously. The other driving mechanism is connected with the third contact system, and is used for driving the third contact system to close or open.

[0011] In an optional embodiment, the contact system further comprises at least two driving mechanisms. One of the drive mechanisms is connected to both the first contact system and the second contact system, and is used to drive the first contact system and the second contact system to close or open synchronously; Another drive mechanism is connected to both the third contact system and the fourth contact system, and is used to drive the third contact system to close or open, and to drive the fourth contact system to close or open.

[0012] In an optional embodiment, the switch further includes a fastener, the first conductive element having a first mounting hole, and the second conductive element having a second mounting hole; The first mounting hole is connected to the second stationary contact of the first contact system or to the second stationary contact of the second contact system via the fastener; The plurality of second mounting holes are respectively connected to the first stationary contact of the third contact system and the first stationary contact of the first contact system via the fasteners, or respectively connected to the second stationary contact of the third contact system and the first stationary contact of the second contact system.

[0013] In an optional embodiment, the first conductive element is linear, and the second conductive element is L-shaped.

[0014] In a second aspect, the present invention provides a circuit system including at least two power supplies, a first circuit, a second circuit, and a switching switch as described in any of the foregoing embodiments; The at least two power sources are provided in the first circuit, the first conductive element is connected to the second circuit, and the second conductive element is connected to the first circuit; Wherein, when the third contact system is in a conducting state and the first contact system and the second contact system are in a disconnected state, the at least two power supplies are connected in series through the first circuit; when the third contact system is in a disconnected state and the first contact system and the second contact system are in a conducting state, the at least two power supplies are connected in parallel through the second circuit.

[0015] The beneficial effects of the switching switch and circuit system provided in this embodiment of the invention include: when the first contact system and the second contact system are in a conducting state and the third contact system is in a disconnected state, a conductive loop can be formed between the first conductive element, the first contact system, and the second conductive element, and another conductive loop can be formed between another first conductive element, the second contact system, and another second conductive element. Therefore, the two conductive loops can be connected to two external power sources respectively to form two parallel circuit structures. When the third contact system is conducting and the first contact system and the second contact system are disconnected, a conductive loop can be formed between the two second conductive elements and the third contact system. This conductive loop can be connected to two external power sources to form a series circuit structure. It can be seen that the switching switch provided in this embodiment of the invention can realize the switching between multiple power sources in the power system in series and parallel states without adding additional circuit components, by turning the contact system on or off. This avoids the complex control logic and additional mechanical structures required in traditional switching devices, thereby reducing production costs, improving switching efficiency, and improving the stability and reliability of the overall system. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, 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 the present invention 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.

[0017] Figure 1 A schematic diagram of the circuit system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the switching switch structure provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the switching switch provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the switching section provided in an embodiment of the present invention.

[0018] Icons: 1-Circuit system; 10-Change switch; 11-Power supply; 12-First circuit; 13-Second circuit; 100-Contact system; 101-First stationary contact; 102-Second stationary contact; 110-First contact system; 120-Second contact system; 130-Third contact system; 140-Fourth contact system; 200-First conductive element; 210-First mounting hole; 300-Second conductive element; 310-Second mounting hole; 400-Moving contact; 500-Drive mechanism; 600-Fastener; 700-Housing. Detailed Implementation

[0019] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0021] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0023] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0025] With the development of power electronics technology, the demand for various types of electrical equipment to operate in different voltage level power supply networks is increasing, especially in the field of electric vehicles. Due to the diversification of charging infrastructure and the high requirement for charging speed, electric vehicles often face different voltage level charging scenarios in actual use, and it is urgent to realize efficient and reliable voltage adaptation and switching function.

[0026] Currently, the mainstream solutions mainly include voltage adjustment by using voltage converters or inverters. Among them, the voltage converter can realize the matching between different voltages, but its system structure is complex, the power device cost is high, and there is a large loss in the energy conversion process, which leads to low charging efficiency and limited charging speed, and it is difficult to meet the fast charging demand. Another solution is to use an inverter for voltage adjustment, although its cost is relatively low, but it still needs to configure additional rectification, filtering and control hardware modules, which increases the system volume, weight and overall cost, and its conversion efficiency is limited by switching loss and thermal management capability. In addition, the above solutions all rely on external power electronic conversion devices, which not only increases the complexity of the vehicle electrical system, but also affects the energy utilization efficiency and system reliability.

[0027] Therefore, it is urgent to provide a voltage switching device with simplified structure, moderate cost and high efficiency and reliability, to overcome the problems of low conversion efficiency, high hardware cost and limited charging speed in the prior art, and to improve the adaptability and operation economy of the electrical equipment in the multi-voltage scene.

[0028] Please refer to Figure 1 The circuit system 1 provided by the embodiments of the present application includes at least two power supplies 11, a first circuit 12, a second circuit 13 and a switching switch 10, which switches the series-parallel relationship of the two power supplies 11 in the first circuit 12 and the second circuit 13 through the switching switch 10, so as to adapt to different power demands.

[0029] In detail, please refer to Figures 2 to 4 The switching switch 10 includes a plurality of contact systems 100, two first conductive parts 200 and two second conductive parts 300.

[0030] Each contact system 100 has a conducting state or a disconnected state, and the plurality of contact systems 100 includes at least a first contact system 110, a second contact system 120 and a third contact system 130; the two first conductive parts 200 are connected with the first contact system 110 and the second contact system 120 respectively; one of the two second conductive parts 300 is connected with the first contact system 110 and the third contact system 130, and the other second conductive part 300 is connected with the second contact system 120 and the third contact system 130.

[0031] Specifically, when the first contact system 110 and the second contact system 120 are in the conductive state and the third contact system 130 is in the non-conductive state, a conductive loop can be formed between the first conductive member 200, the first contact system 110 and the second conductive member 300, and another conductive loop can be formed between another first conductive member 200, the second contact system 120 and another second conductive member 300, so that the two conductive loops can be connected to the two external power sources 11 respectively to form a parallel circuit structure; when the third contact system 130 is in the conductive state and the first contact system 110 and the second contact system 120 are in the non-conductive state, a conductive loop can be formed between the two second conductive members 300 and the third contact system 130, and the conductive loop can be connected to the two external power sources 11 to form a series circuit structure.

[0032] In addition, it should be noted that the at least two power sources 11 are arranged in the first circuit 12, the first conductive member 200 is connected to the second circuit 13, and the second conductive member 300 is connected to the first circuit 12.

[0033] Therefore, when the third contact system 130 is in the conductive state and the first contact system 110 and the second contact system 120 are in the non-conductive state, the at least two power sources 11 are arranged in series through the first circuit 12; when the third contact system 130 is in the non-conductive state and the first contact system 110 and the second contact system 120 are in the conductive state, the at least two power sources 11 are arranged in parallel through the second circuit 13.

[0034] Therefore, the switching switch 10 provided by the embodiment of the present application can realize the switching of the multiple power sources 11 between the series and parallel states in the power utilization system without increasing additional circuit elements, avoids the complex control logic and additional mechanical structure required in the traditional switching device, thereby reducing the production cost, improving the switching efficiency, and improving the stability and reliability of the overall system.

[0035] In summary, the switching switch 10 can realize efficient circuit switching function under different voltage platforms, meets the adaptation requirements of the power utilization equipment such as electric vehicles under different power utilization requirements, and effectively reduces the system complexity and manufacturing cost.

[0036] Further, in order to ensure the stable electrical connection of the contact system 100 with the first conductive member 200 and the second conductive member 300, each contact system 100 includes a first stationary contact 101 and a second stationary contact 102, and the first stationary contact 101 and the second stationary contact 102 are selectively connected, i.e., the first stationary contact 101 and the second stationary contact 102 can be contacted or separated by the movable contact 400, so that the contact system 100 can be in the conductive state or the non-conductive state.

[0037] One end of one of the first conductive members 200 is used for connection with the circuit, and the other end is connected with the second stationary contact 102 of the first contact system 110. One end of the other first conductive member 200 is used for connection with the circuit, and the other end is connected with the second stationary contact 102 of the second contact system 120.

[0038] One end of one of the second conductive members 300 is used for connection with the circuit, and the other end is connected with the first stationary contact 101 of the third contact system 130 and the first stationary contact 101 of the first contact system 110 in sequence. One end of the other second conductive member 300 is used for connection with the circuit, and the other end is connected with the second stationary contact 102 of the third contact system 130 and the first stationary contact 101 of the second contact system 120 in sequence.

[0039] Specifically, when the first contact system 110 and the second contact system 120 are in the on state, and the third contact system 130 is in the off state, the current flows into the second stationary contact 102 of the first contact system 110 and the second contact system 120 through the two first conductive members 200 respectively, and is conducted to the corresponding first stationary contact 101 through the movable contact 400 inside, so as to realize the conduction of one first conductive member 200 and one second conductive member 300, and the conduction of the other first conductive member 200 and the other second conductive member 300; and since the third contact system 130 is in the off state, the two second conductive members 300 are not conducted, thus forming two parallel circuit structures.

[0040] And in the case of the third contact system 130 being on, and the first contact system 110 and the second contact system 120 being off, the current enters the first stationary contact 101 and the second stationary contact 102 of the third contact system 130 through the second conductive member 300, and then flows to the other second conductive member 300 to the external circuit, thus forming a series circuit structure.

[0041] Such design not only enables the switching switch 10 to have the ability to flexibly switch between series and parallel circuits, but also simplifies the mechanical action logic required for circuit switching through the fixed connection relationship between the conductive members and the stationary contacts, and improves the system response speed and reliability.

[0042] Further, the first contact system 110 and the second contact system 120 are arranged side by side, so that the first fixed contact 101 of the first contact system 110 corresponds to the first fixed contact 101 of the second contact system 120, and the second fixed contact 102 of the first contact system 110 corresponds to the second fixed contact 102 of the second contact system 120. The third contact system 130 is arranged perpendicularly at one end of the first contact system 110 and the second contact system 120, that is, the two fixed contact lines of the first contact system 110 and the two fixed contact lines of the second contact system 120 are parallel, and both are perpendicular to the two fixed contact lines of the third contact system 130, and the third contact system 130 is located at the end of the first contact system 110 and the second contact system 120 close to the first fixed contact 101.

[0043] Specifically, the first contact system 110, the second contact system 120 and the third contact system 130 are symmetrically distributed, which can effectively utilize the three-dimensional space inside the switch shell 700, reduce the overall structure in the transverse direction, improve the space utilization, so that the second conductive part 300 can be connected to the first fixed contact 101 of the third contact system 130 and the first contact system 110 or the second contact system 120 in turn, thereby ensuring the path continuity and structural compactness during circuit switching.

[0044] It should be noted that in some other embodiments of the present application, the plurality of contact systems 100 further comprises a fourth contact system 140, and the fourth contact system 140 is arranged side by side with the third contact system 130, so that the first fixed contact 101 of the fourth contact system 140 corresponds to the first fixed contact 101 of the third contact system 130, and the second fixed contact 102 of the fourth contact system 140 corresponds to the second fixed contact 102 of the third contact system 130.

[0045] One of the second conductive parts 300 is connected to the first fixed contact 101 of the fourth contact system 140, the first fixed contact 101 of the third contact system 130 and the first fixed contact 101 of the first contact system 110 in turn, and the other second conductive part 300 is connected to the second fixed contact 102 of the fourth contact system 140, the second fixed contact 102 of the third contact system 130 and the first fixed contact 101 of the second contact system 120 in turn.

[0046] By introducing the fourth contact system 140, the selectivity of the switch can be more, that is, the third contact system 130 and the fourth contact system 140 are used as the contact structure of the double connection contactor, and the switch can be composed of single connection contactor and double connection contactor in any combination.

[0047] Further, the contact system 100 further comprises a movable contact 400 and a driving mechanism 500.

[0048] Each contact system 100 is connected with a driving mechanism 500, which is used to drive the contact system 100 to close or open.

[0049] In detail, in each contact system 100, the driving mechanism 500 is connected with the moving contact 400, and the driving mechanism 500 is used to drive the moving contact 400 to close or open simultaneously with the first stationary contact 101 and the second stationary contact 102.

[0050] That is, in the embodiment, the first contact system 110, the second contact system 120 and the third contact system 130 are all single-connection contact systems 100, which respectively drive the moving contact 400 to move through the corresponding driving mechanism 500. Thus, in the embodiment, the switch is composed of three single-connection contactors.

[0051] It should be noted that the driving mechanism 500 can be an electromagnetic drive, that is, it includes a moving iron core, a stationary iron core transmission member and the like. By electrifying the stationary iron core, the moving iron core is moved by the electromagnetic force of the stationary iron core, so that the transmission member connected with the moving iron core is synchronously moved, and the moving contact 400 is driven to contact the first stationary contact 101 and the second stationary contact 102, so that an electrically conductive path is formed between the first stationary contact 101, the moving contact 400 and the second stationary contact 102, thereby realizing the conduction of the contact system 100.

[0052] It should be noted that in one embodiment of the present application, the first contact system 110 and the second contact system 120 are double-connection contactors, and the third contact system 130 is a single-connection contactor. One driving mechanism 500 is connected with the first contact system 110 and the second contact system 120, and is used to drive the first contact system 110 and the second contact system 120 to close or open synchronously; the other driving mechanism 500 is connected with the third contact system 130, and is used to drive the third contact system 130 to close or open.

[0053] Specifically, one driving mechanism 500 is connected with the moving contact 400 of the first contact system 110 and the moving contact 400 of the second contact system 120, and is used to drive the moving contact 400 of the first contact system 110 to close or open simultaneously with the first stationary contact 101 and the second stationary contact 102, and is used to synchronously drive the second contact system 120 and the moving contact 400 to close or open simultaneously with the first stationary contact 101 and the second stationary contact 102; the other driving mechanism 500 is connected with the moving contact 400 of the third contact system 130, and is used to drive the moving contact 400 of the third contact system 130 to close or open simultaneously with the first stationary contact 101 and the second stationary contact 102.

[0054] In another embodiment of the present application, the first contact system 110 and the second contact system 120 are double connection contactors, and the third contact system 130 and the fourth contact system 140 are also double connection contactors. One of the drive mechanisms 500 is connected to the first contact system 110 and the second contact system 120, and is used to drive the first contact system 110 and the second contact system 120 to be closed or opened synchronously; the other drive mechanism 500 is connected to the third contact system 130 and the fourth contact system 140, and is used to drive the third contact system 130 to be closed or opened, and is used to drive the fourth contact system 140 to be closed or opened.

[0055] Specifically, one of the drive mechanisms 500 is connected to the moving contact 400 of the first contact system 110 and the moving contact 400 of the second contact system 120, and is used to drive the moving contact 400 of the first contact system 110 to be closed or opened simultaneously with the first stationary contact 101 and the second stationary contact 102, and is used to drive the moving contact 400 of the second contact system 120 to be closed or opened simultaneously with the first stationary contact 101 and the second stationary contact 102; The other drive mechanism 500 is connected to the moving contact 400 of the third contact system 130 and the moving contact 400 of the fourth contact system 140, and is used to drive the moving contact 400 of the third contact system 130 to be closed or opened simultaneously with the first stationary contact 101 and the second stationary contact 102, and is used to drive the moving contact 400 of the fourth contact system 140 to be closed or opened with the first stationary contact 101 and the second stationary contact 102.

[0056] Further, the switch 10 further comprises fasteners 600, the first conductive member 200 is provided with a first mounting hole 210, and the second conductive member 300 is provided with a second mounting hole 310; the first mounting hole 210 is connected to the second stationary contact 102 of the first contact system 110 or the second stationary contact 102 of the second contact system 120 through the fastener 600, and the plurality of second mounting holes 310 are respectively connected to the first stationary contact 101 of the third contact system 130, the first stationary contact 101 of the first contact system 110, or the second stationary contact 102 of the third contact system 130, the first stationary contact 101 of the second contact system 120 through the fastener 600.

[0057] It is worth mentioning that for the embodiment provided with the fourth contact system 140, one of the second mounting holes 310 of the second conductive member 300 is also connected to the first stationary contact 101 or the second stationary contact 102 of the fourth contact system 140 through the fastener 600.

[0058] In the embodiment, the first mounting hole 210 and the second mounting hole 310 are arranged in such a way that the conductive member can be detachably connected to the stationary contact of the contact system 100 by a standard fastener 600 (such as a screw or a bolt), which not only improves the assembly efficiency of the overall structure of the switch 10, but also enhances the stability and maintainability of the conductive path connection.

[0059] Specifically, the first conductive member 200 is fixedly connected to the second stationary contact 102 of the first contact system 110 or the second contact system 120 through its first mounting hole 210, thereby ensuring stable transmission of current in the on state; and the second conductive member 300 is sequentially connected to the first stationary contact 101 of the third contact system 130 and the first stationary contact 101 of the first contact system 110 or the second contact system 120 through multiple second mounting holes 310, to support the complex on-path switching required by the switch 10 in different circuit configurations.

[0060] In addition, it is worth mentioning that the first conductive member 200 is in a straight line shape, which helps to keep the current path shortest when connecting the second stationary contact 102 of the first contact system 110 and the second contact system 120, thereby reducing resistance, energy loss, and improving overall conductive performance. At the same time, the straight line shape facilitates standardized processing and mass production, which is conducive to improving manufacturing efficiency and assembly consistency.

[0061] The second conductive member 300 adopts an L-shaped design, which allows it to better adapt to the relative positional relationship between the third contact system 130 and the first contact system 110 or the second contact system 120 in space, and the L-shaped conductive member can effectively avoid spatial interference with other components while meeting the electrical connection requirements.

[0062] Further, the switch 10 also includes a housing 700, in which the multiple contact systems 100, the movable contact 400, the driving mechanism 500, and the like are arranged inside the housing 700, and the stationary contacts are extended out of the housing 700 to connect to the corresponding conductive members.

[0063] In summary, the embodiment of the present application provides a switching switch 10 and circuit system 1, when the first contact system 110 and the second contact system 120 are in the on state, and the third contact system 130 is in the off state, a conductive loop can be formed between the first conductive part 200, the first contact system 110 and the second conductive part 300, and another conductive loop can be formed between another first conductive part 200, the second contact system 120 and another second conductive part 300, so that two conductive loops can be connected to two external power supplies 11 to form a parallel circuit structure; when the third contact system 130 is on, and the first contact system 110 and the second contact system 120 are off, a conductive loop can be formed between the two second conductive parts 300 and the third contact system 130, and the conductive loop can be connected to the two external power supplies 11 to form a series circuit structure; it can be seen that the switching switch 10 provided by the embodiment of the present application can realize the switching of multiple power supplies 11 in the series and parallel states in the power utilization system without increasing additional circuit elements, by the on or off of the contact system 100, avoiding the complex control logic and additional mechanical structure required in the traditional switching device, thereby reducing the production cost, improving the switching efficiency, and improving the stability and reliability of the overall system.

[0064] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A changeover switch, characterised in that, The utility model relates to a circuit breaker, including: a plurality of contact systems (100), each of the contact systems (100) has a conducting state or a disconnected state, the plurality of contact systems (100) at least include first contact system (110), second contact system (120) and third contact system (130); Two first conductive parts (200), two first conductive parts (200) are connected with first contact system (110) and second contact system (120) respectively; Two second conductive parts (300), one of second conductive parts (300) is connected with first contact system (110) and third contact system (130), and another second conductive part (300) is connected with second contact system (120) and third contact system (130).

2. The switch according to claim 1, characterized in that Each contact system (100) includes first fixed contact (101) and second fixed contact (102), and first fixed contact (101) and second fixed contact (102) can be contacted or separated by moving contact (400), so that the contact system (100) can be conducted or disconnected; One end of one of the first conductive parts (200) is used for connecting with circuit, and the other end is connected with the second fixed contact (102) of the first contact system (110), and one end of another first conductive part (200) is used for connecting with circuit, and the other end is connected with the second fixed contact (102) of the second contact system (120); One end of one of the second conductive parts (300) is used for connecting with circuit, and the other end is sequentially connected with the first fixed contact (101) of the third contact system (130) and the first fixed contact (101) of the first contact system (110), and one end of another second conductive part (300) is used for connecting with circuit, and the other end is sequentially connected with the second fixed contact (102) of the third contact system (130) and the first fixed contact (101) of the second contact system (120).

3. The switch according to claim 2, characterized in that The first contact system (110) and the second contact system (120) are arranged side by side, so that the first fixed contact (101) of the first contact system (110) corresponds to the first fixed contact (101) of the second contact system (120), and the second fixed contact (102) of the first contact system (110) corresponds to the second fixed contact (102) of the second contact system (120), and the third contact system (130) is vertically arranged at one end of the first contact system (110) and the second contact system (120).

4. The switch according to claim 1, characterized in that The plurality of contact systems (100) further comprises a fourth contact system (140), the fourth contact system (140) is arranged side by side with the third contact system (130), so that the first static contact (101) of the fourth contact system (140) corresponds to the first static contact (101) of the third contact system (130), and the second static contact (102) of the fourth contact system (140) corresponds to the second static contact (102) of the third contact system (130); One of the second conductive parts (300) is connected to the first static contact (101) of the fourth contact system (140), the first static contact (101) of the third contact system (130), and the first static contact (101) of the first contact system (110) in sequence, and the other second conductive part (300) is connected to the second static contact (102) of the fourth contact system (140), the second static contact (102) of the third contact system (130), and the first static contact (101) of the second contact system (120) in sequence.

5. The switch according to claim 2, characterized in that The switch further comprises a plurality of driving mechanisms (500); Each of the contact systems (100) is connected to one of the driving mechanisms (500), and the driving mechanism (500) is used to drive the contact system (100) to close or open.

6. The switch according to claim 2, wherein The contact system (100) further comprises at least two driving mechanisms (500); One of the driving mechanisms (500) is connected to the first contact system (110) and the second contact system (120), and is used to drive the first contact system (110) and the second contact system (120) to close or open synchronously. The other driving mechanism (500) is connected to the third contact system (130), and is used to drive the third contact system (130) to close or open.

7. The switch according to claim 4, characterized in that The contact system (100) further comprises at least two driving mechanisms (500); One of the driving mechanisms (500) is connected to the first contact system (110) and the second contact system (120), and is used to drive the first contact system (110) and the second contact system (120) to close or open synchronously. The other driving mechanism (500) is connected to the third contact system (130) and the fourth contact system (140), and is used to drive the third contact system (130) to close or open, and is used to drive the fourth contact system (140) to close or open.

8. The switch according to claim 2, wherein The switch further comprises a fastener (600), the first conductive part (200) is provided with a first mounting hole (210), and the second conductive part (300) is provided with a second mounting hole (310); The first mounting hole (210) is connected to the second static contact (102) of the first contact system (110) or the second static contact (102) of the second contact system (120) through the fastener (600); The second mounting hole (310) is connected to the second static contact (102) of the second contact system (120) through the fastener (600). The second mounting holes (310) are connected with the first static contact (101) of the third contact system (130), the first static contact (101) of the first contact system (110) respectively through the fasteners (600), or connected with the second static contact (102) of the third contact system (130), the first static contact (101) of the second contact system (120) respectively.

9. The switch according to claim 1, characterized in that The first conductive part (200) is in a straight line shape, and the second conductive part (300) is in an L shape.

10. A circuit system (1), characterized in that The switching switch comprises at least two power supplies (11), a first circuit (12), a second circuit (13), and the switching switch as claimed in any one of claims 1-9. The at least two power supplies (11) are arranged in the first circuit (12), the first conductive part (200) is connected with the second circuit (13), and the second conductive part (300) is connected with the first circuit (12). In the third contact system (130) is in a conducting state, and the first contact system (110) and the second contact system (120) are in a disconnected state, the at least two power supplies (11) are arranged in series through the first circuit (12); in the third contact system (130) is in a disconnected state, and the first contact system (110) and the second contact system (120) are in a conducting state, the at least two power supplies (11) are arranged in parallel through the second circuit (13).

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