Dual-power change-over switch

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and particularly discloses a dual-power change-over switch. According to the dual-power change-over switch provided by the utility model, the driving system drives the moving contact system to slide so as to realize contact or separation of the moving contact system and the static contact system; in the contact process of the moving contact system and the static contact system, the limiting block is stopped by the limiting piece, and the driving system cannot continuously rotate, so that the contact accuracy of the moving contact system and the static contact system is improved, and the stability of the dual-power change-over switch during switching on is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a dual-power supply transfer switch. Background Art

[0002] Dual power transfer switches are mainly used in two-way power supply systems. When the normal power supply fails, the load circuit is automatically transferred from the normal power supply to the backup power supply, thereby ensuring continuous power supply to the load. They are widely used in important places such as hospitals, airports, and docks where power outages are not allowed.

[0003] A dual-power transfer switch includes a moving contact system, a stationary contact system, a motor, and a transmission mechanism. The motor drives the moving contact system to make contact or separate with the stationary contact system through the transmission mechanism. In existing technology, when the moving and stationary contact systems make contact to close, the motor continues to rotate due to inertia. This rotation drives the moving contact system to continue moving relative to the stationary contact system, thereby affecting the contact accuracy between the moving and stationary contact systems. Utility Model Content

[0004] The purpose of the utility model is to provide a dual power transfer switch, which improves the contact accuracy between the moving contact system and the static contact system and improves the stability of the dual power transfer switch when it is closed.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A dual power transfer switch, comprising:

[0007] a housing, wherein a limiting member is provided in the housing;

[0008] A moving contact system is slidably disposed in the housing;

[0009] A static contact system, fixedly disposed in the housing;

[0010] A drive system is provided in the housing, the drive system is connected to the moving contact system, and a limit block is provided at a drive end of the drive system;

[0011] The driving system is used to drive the moving contact system to slide and drive the limit block to rotate, so that the moving contact system and the static contact system are in contact or separated. When in contact, the limit block is stopped by the limit member.

[0012] As an optional technical solution of the above-mentioned dual power conversion switch, there are two limit members, namely a first limit member and a second limit member;

[0013] There are two moving contact systems, namely the first moving contact system and the second moving contact system. The two ends of each moving contact system are respectively provided with the static contact system, and the two static contact systems on the outgoing line side are conductively connected;

[0014] The driving system is used to drive the first moving contact system and the second moving contact system to slide, so that the first moving contact system is separated from the corresponding static contact system, the second moving contact system is in contact with the corresponding static contact system, and the limit block is stopped by the first limit member; or the first moving contact system is in contact with the corresponding static contact system, the second moving contact system is separated from the corresponding static contact system, and the limit block is stopped by the second limit member.

[0015] As an optional technical solution for the above-mentioned dual power conversion switch, the drive system includes a drive component and two transmission components, the two transmission components are respectively a first transmission component and a second transmission component, the first transmission component and the second transmission component both include a rocker arm and a connecting rod unit, the first end of the rocker arm is connected to the drive component, the first end of the connecting rod unit is provided with a first waist-shaped hole, the second end of the rocker arm is rotatably connected to the first waist-shaped hole through a first rotating member, and the first rotating member can slide in the first waist-shaped hole, the second end of the connecting rod unit is rotatably connected to the corresponding first moving contact system or the second moving contact system through a second rotating member, and the two ends of the elastic member respectively abut against the rotation connection between the second rotating member and the second connecting rod.

[0016] As an optional technical solution of the above-mentioned dual power conversion switch, the drive assembly includes a drive motor and a rotating shaft, the rotating shaft is drivingly connected to the output shaft of the drive motor, and the axis of the rotating shaft is parallel to the output shaft of the drive motor, the limit block is fixedly provided on the rotating shaft, and the swing rod of the first transmission assembly and the swing rod of the second transmission assembly are respectively fixedly provided on the rotating shaft, and the two swing rods are arranged at an angle;

[0017] And / or, a status indicator is fixedly provided on the rotating shaft.

[0018] As an optional technical solution for the above-mentioned dual power conversion switch, the connecting rod unit includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is provided with the first waist-shaped hole, the first end of the second connecting rod is provided with the second waist-shaped hole, the second end of the first connecting rod is rotatably connected to the second waist-shaped hole through the second rotating member, and the second rotating member can slide in the second waist-shaped hole, the second end of the second connecting rod is rotatably connected to the outer shell, and an elastic member is provided on the outside of the second connecting rod, and the two ends of the elastic member respectively abut against the rotation connection between the second rotating member and the second connecting rod.

[0019] As an optional technical solution for the above-mentioned dual power conversion switch, the connecting rod unit also includes a third connecting rod, which is a U-shaped structure. The second end of the first connecting rod and the first end of the second connecting rod are placed between the two side walls of the third connecting rod, and the second rotating member passes through the two side walls of the third connecting rod and is connected to a stop member at the end.

[0020] As an optional technical solution for the above-mentioned dual power conversion switch, the moving contact system includes a contact support, which is slidably arranged in the housing, and a plurality of moving contact assemblies are provided on the contact support, and the moving contact assembly includes two moving contacts and two spring leaves, the two spring leaves are opposite to each other and spaced apart, and the middle part of the spring leaves is connected to the contact support, the two moving contacts are arranged between the two spring leaves, and both ends of the moving contact are provided with plug-in blocks, and both ends of the spring leaves are provided with plug-in holes, the two ends of the spring leaves are pressed against the two ends of the moving contact, and the plug-in blocks are plugged into the corresponding plug-in holes.

[0021] As an optional technical solution of the above-mentioned dual power conversion switch, the plug hole is a long strip hole, and the plug hole extends along the length direction of the moving contact.

[0022] As an optional technical solution of the dual power transfer switch described above, buffer members are respectively provided at positions corresponding to both ends of the moving contact system in the housing along the sliding direction of the moving contact system.

[0023] As an optional technical solution for the above-mentioned dual power conversion switch, the shell includes a face cover and a bottom shell, the face cover is buckled on the bottom shell, a signal switch is provided in the space enclosed by the bottom shell and the face cover, a sliding cover is provided on the face cover, and the sliding cover can slide between a first position and a second position on the face cover, a trigger member is provided on the side of the sliding cover facing the face cover, and the trigger member passes through the face cover, and when the sliding cover is in the first position, the trigger member triggers the signal switch, and when the sliding cover is in the second position, the trigger member does not trigger the signal switch.

[0024] As an optional technical solution for the above-mentioned dual power conversion switch, a limiting portion is provided on the side of the face cover facing the sliding cover, and a first matching portion and a second matching portion are provided on the side of the sliding cover facing the face cover. When the sliding cover is placed in the first position, the limiting portion is connected to the first matching portion, and when the sliding cover is placed in the second position, the limiting portion is connected to the second matching portion.

[0025] As an optional technical solution of the above-mentioned dual power conversion switch, the limiting member and the housing are integrally connected.

[0026] Beneficial effects of the utility model:

[0027] The dual power conversion switch provided by the utility model has a driving system that drives the moving contact system to slide, thereby realizing contact or separation between the moving contact system and the static contact system; during the contact between the moving contact system and the static contact system, the limit block is stopped by the limit member, and the driving system cannot continue to rotate, thereby improving the accuracy of the contact between the moving contact system and the static contact system and improving the stability of the dual power conversion switch when closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a first isometric view of a dual power transfer switch provided by an embodiment of the present utility model;

[0029] Figure 2 This is a second isometric view of the dual power transfer switch provided by an embodiment of the present utility model;

[0030] Figure 3 This is a schematic diagram of the internal structure of the dual power conversion switch provided by an embodiment of the utility model;

[0031] Figure 4 This is a first isometric view of the connection between the moving contact system and the drive system of the dual power transfer switch provided by an embodiment of the present utility model;

[0032] Figure 5 This is a second isometric view of the connection between the moving contact system and the drive system of the dual power transfer switch provided by an embodiment of the present utility model;

[0033] Figure 6 This is a top view of the internal structure of the dual power transfer switch provided by an embodiment of the utility model;

[0034] Figure 7 This is a third isometric view of the connection between the moving contact system and the drive system of the dual power transfer switch provided by an embodiment of the present utility model;

[0035] Figure 8 It is a structural diagram of a transmission assembly provided by an embodiment of the present utility model;

[0036] Figure 9 This is a structural diagram of the moving contact system provided by an embodiment of the present utility model;

[0037] Figure 10 This is a first isometric view of the moving contact assembly provided by an embodiment of the present utility model;

[0038] Figure 11 This is a second isometric view of the moving contact assembly provided by an embodiment of the present utility model;

[0039] Figure 12 This is an exploded view of the sliding cover and the front cover provided by an embodiment of the utility model;

[0040] Figure 13 This is a schematic diagram of the internal structure of the connection between the sliding cover and the front cover provided by an embodiment of the utility model;

[0041] Figure 14 This is a schematic structural diagram of the sliding cover provided by an embodiment of the utility model;

[0042] Figure 15 It is a cross-sectional view of the connection between the sliding cover and the surface cover provided by an embodiment of the utility model.

[0043] In the picture:

[0044] 1. Housing; 2. Limiting parts; 3. Moving contact system; 4. Static contact system; 5. Driving system; 6. Limiting blocks; 7. Status indicators; 8. Buffering parts; 9. Signal switches;

[0045] 11. Surface cover; 111. Position limiting portion; 12. Bottom shell; 13. Sliding cover; 131. Trigger; 132. First matching portion; 133. Second matching portion;

[0046] 2a, first limiting member; 2b, second limiting member;

[0047] 3a, first moving contact system; 3b, second moving contact system; 31, contact support; 32, moving contact assembly; 321, moving contact; 322, spring piece; 323, plug block; 324, plug hole;

[0048] 51. Driving assembly; 511. Driving motor; 512. Rotating shaft; 52. Transmission assembly; 52a. First transmission assembly; 52b. Second transmission assembly; 521. Rocker arm; 522. Connecting rod unit; 5221. First connecting rod; 5222. Second connecting rod; 5223. Second waist-shaped hole; 5224. Third connecting rod; 523. Elastic member; 524. First rotating member; 525. Second rotating member; 526. First waist-shaped hole; 5261. First end; 5262. Second end. DETAILED DESCRIPTION

[0049] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0050] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0051] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0052] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0053] like Figures 1 to 3 As shown, this embodiment provides a dual power transfer switch, which includes a housing 1, a moving contact system 3, a stationary contact system 4, and a drive system 5. The moving contact system 3 is slidably disposed within the housing 1, and the stationary contact system 4 is fixedly disposed within the housing 1. A stopper 2 is also disposed within the housing 1, and the drive system 5 is disposed within the housing 1. A stopper 6 is provided at the driving end of the drive system 5. The drive system 5 is used to drive the moving contact system 3 to slide and the stopper 6 to rotate, causing the moving contact system 3 to contact or separate from the stationary contact system 4. When in contact, the stopper 6 is stopped by the stopper 2.

[0054] In the dual power conversion switch provided in this embodiment, the drive system 5 drives the moving contact system 3 to slide, thereby realizing the contact or separation of the moving contact system 3 and the static contact system 4; during the contact between the moving contact system 3 and the static contact system 4, the limit block 6 is stopped by the limit member 2, and the drive system 5 cannot continue to rotate, thereby improving the accuracy of the contact between the moving contact system 3 and the static contact system 4 and improving the stability of the dual power conversion switch when closing.

[0055] like Figure 4-Figure 7 As shown, the dual power transfer switch is primarily used in dual power supply systems. Therefore, the dual power transfer switch has two limiters 2: a first limiter 2a and a second limiter 2b. Two moving contact systems 3: a first moving contact system 3a and a second moving contact system 3b. Each moving contact system 3 has a corresponding static contact system 4 at each end. The two static contact systems 4 on the outgoing side are electrically connected, achieving two inputs and one output, allowing connection to two power supply systems. A drive system 5 is used to drive the first moving contact system 3a and the second moving contact system 3b to slide, causing the first moving contact system 3a to separate from the corresponding static contact system 4 and the second moving contact system 3b to contact the corresponding static contact system 4, with the limiter 6 being stopped by the first limiter 2a; or to cause the first moving contact system 3a to contact the corresponding static contact system 4 and the second moving contact system 3b to separate from the corresponding static contact system 4, with the limiter 6 being stopped by the second limiter 2b. The dual power conversion switch is driven by a driving component 51 to drive two moving contact systems 4 to operate, thereby realizing the switching of two power supplies.

[0056] The limiting member 2 and the housing 1 are integrally connected. Specifically, the first limiting member 2a and the second limiting member 2b are integrally formed with the housing 1, thereby reducing the number of components.

[0057] like Figures 3 to 5 as well as Figure 8 As shown, the drive system 5 includes a drive component 51 and a transmission component 52. The transmission component 52 includes a rocker rod 521 and a connecting rod unit 522. The first end of the rocker rod 521 is connected to the drive component 51. The first end of the connecting rod unit 522 is provided with a first waist-shaped hole 526. The second end of the rocker rod 521 is rotatably connected to the first waist-shaped hole 526 through a first rotating member 524, and the first rotating member 524 can slide in the first waist-shaped hole 526. The second end of the connecting rod unit 522 is rotatably connected to the corresponding first moving contact system 3a or second moving contact system 3b through a second rotating member 525. The driving end of the drive component 51 is provided with a limit block 6. The drive component 51 is used to drive the rocker rod 521 and the limit block 6 to rotate, so that the moving contact system 3 and the static contact system 4 are from separated to contact or from contact to separated. In some embodiments, see Figure 4 、 Figure 6 and Figure 7As shown, the drive assembly 51 includes a drive motor 511 and a rotating shaft 512, the rotating shaft 512 is connected to the output shaft of the drive motor 511, and the axis of the rotating shaft 512 is parallel to the output shaft of the drive motor 511, the limit block 6 is fixedly set on the rotating shaft 512, the rocker arm 521 of the first transmission assembly 52a is fixedly set on the rotating shaft 512, the rocker arm 521 of the second transmission assembly 52b is fixedly connected to the output shaft of the drive motor 511, and the two rocker arms 521 are set at an angle to enable the two moving contact systems 3 to slide in different directions.

[0058] Optionally, the output shaft of the driving motor 511 is connected to the rotating shaft 512 through a gear assembly, and the driving force of the driving motor 511 is transmitted to the rotating shaft 512 through the gear assembly.

[0059] The cross-section of the rotating shaft 512 is a polygonal structure, such as a quadrilateral, pentagon, hexagon, etc. The limit block 6 is provided with a hole that is compatible with the structure of the rotating shaft 512. The limit block 6 is sleeved on the rotating shaft 512 to prevent the limit block 6 from rotating relative to the rotating shaft 512.

[0060] A status indicator 7 is fixedly provided on the rotating shaft 512. When the limit block 6 is stopped by the first limit member 2a or the second limit member 2b, the status indicator 7 can indicate that it is in place, providing the user with accurate indication information, so that the user can accurately understand the working status of the dual power conversion switch.

[0061] like Figure 4 and Figure 8 As shown, in some embodiments, the connecting rod unit 522 includes a first connecting rod 5221 and a second connecting rod 5222. The first end of the first connecting rod 5221 is provided with a first waist-shaped hole 526, and the first end of the second connecting rod 5222 is provided with a second waist-shaped hole 5223. The second end of the first connecting rod 5221 is rotatably connected to the second waist-shaped hole 5223 via a second rotating member 525, and the second rotating member 525 can slide within the second waist-shaped hole 5223. The second end of the second connecting rod 5222 is rotatably connected to the housing 1. The second connecting rod 5222 is outer-mounted with an elastic member 523. The two ends of the elastic member 523 respectively abut the rotational connection between the second rotating member 525 and the second connecting rod 5222. The second connecting rod 5222 provides a guide for the deformation of the elastic member 523. The arrangement of the first connecting rod 5221 and the second connecting rod 5222 converts the driving force of the driving assembly 51 into a force that drives the moving contact system 3 to slide, resulting in a simple structure.

[0062] Illustratively, when the first moving contact system 3a is separated from the static contact system 4, the elastic member 523 is in a free state. In the process of the first moving contact system 3a and the static contact system 4 moving from separation to contact, the driving assembly 51 drives the rocker arm 521 to rotate, the rocker arm 521 drives the first connecting rod 5221 to move, the first connecting rod 5221 drives the second connecting rod 5222 to move, and at the same time the elastic member 523 is compressed, the first connecting rod 5221 continues to drive the second connecting rod 5222 to move, when crossing the dead point of the elastic member 523, the elastic member 523 releases the elastic force, and the elastic force is applied to the first connecting rod 5221, the first connecting rod 5221 drives the first moving contact system 3a to contact with the static contact system 4, the limit block 6 is stopped by the second limit member 2b, and the first rotating member 524 moves from the second end 5262 of the first waist-shaped hole to the first end 5261, storing energy for the separation of the first moving contact system 3a and the static contact system 4. The process of separating the first moving contact system 3a from the static contact system 4, and the process of contacting or separating the second moving contact system 3b from the static contact system 4 are the same as those described above and will not be described in detail herein.

[0063] Further optionally, the connecting rod unit 522 also includes a third connecting rod 5224. The third connecting rod 5224 has a U-shaped structure. The second end of the first connecting rod 5221 and the first end of the second connecting rod 5222 are positioned between the two side walls of the third connecting rod 5224. The second rotating member 525 passes through the two side walls of the third connecting rod 5224 and is connected to a stopper at its end. The third connecting rod 5224 constrains the first connecting rod 5221 and the second connecting rod 5222 between the two side walls of the third connecting rod 5224 and limits the first connecting rod 5221 and the second connecting rod 5222 in the axial direction of the second rotating member 525. The stopper can be an elastic snap ring. The end of the second rotating member 525 is provided with a snap groove, and the elastic snap ring is snapped into the snap groove.

[0064] like Figures 9 to 11 As shown, in some embodiments, the moving contact system 3 includes a contact support 31, which is slidably arranged in the housing 1. A plurality of moving contact assemblies 32 are provided on the contact support 31. The moving contact assemblies 32 include two moving contacts 321 and two spring pieces 322. The two spring pieces 322 are arranged opposite to each other and spaced apart, and the middle of the spring pieces 322 is connected to the contact support 31. The two moving contacts 321 are arranged between the two spring pieces 322. Both ends of the moving contact 321 are provided with a plug-in block 323. Both ends of the spring piece 322 are provided with a plug-in hole 324. The two ends of the spring piece 322 press against the two ends of the moving contact 321, and the plug-in blocks 323 are plugged into the corresponding plug-in holes 324. Figure 7As shown, the static contact system 4 includes a static contact. When the movable contact system 3 and the static contact system 4 are in contact, the static contact is sandwiched between the two movable contacts 321. The spring piece 322 provides elastic pressure to clamp the two movable contacts 321 against the static contact. When the static contact is inserted between the two movable contacts 321, the static contact presses the two movable contacts 321, overcoming the elastic force exerted by the spring piece 322, thereby increasing the distance between the two movable contacts 321 and facilitating the insertion of the static contact between the two movable contacts 321. In the prior art, a U-shaped groove is provided on the spring sheet 322, and the plug-in block 323 of the moving contact 321 is plugged into the U-shaped groove. The spring sheet 322 does not completely wrap the plug-in block 323. Compared with the prior art, the circumferential position of the plug-in block 323 in this embodiment is exerted with elastic force by the spring sheet 322, and the moving contact 321 is uniformly stressed. In the process of the static contact being plugged between the two moving contacts 321, the static contact can increase the distance between the two moving contacts 321, so that the static contact can be smoothly plugged between the two moving contacts 321.

[0065] Optionally, the insertion hole 324 is an elongated hole, and the insertion hole 324 extends along the length of the movable contact 321, which facilitates adjustment of the position of the spring piece 322 and facilitates assembly of the spring piece 322 and the movable contact 321. Since the insertion hole 324 is an elongated hole, in order to fix the insertion block 323 in the insertion hole 324, the two movable contacts 321 are each provided with a pressing block on the opposite side. The pressing blocks of the two movable contacts 321 press against each other, so that the insertion block 323 is inserted into the insertion hole 324, and there is space between the two movable contacts 321 for inserting the static contact.

[0066] In some embodiments, see Figure 3 As shown, along the sliding direction of the moving contact system 3, buffer members 8 are provided in the housing 1 at positions corresponding to the two ends of the moving contact system 3. When the moving contact system 3 slides to contact or separate from the static contact system 4, the moving contact system 3 contacts the buffer member 8, avoiding hard contact with the housing 1, thereby extending the service life of the dual power transfer switch. When the moving contact system 3 collides with the buffer member 8, the buffer member 8 provides a certain buffering force for the moving contact system 3, ensuring that the moving contact system 3 and the static contact system 4 are fully in contact or fully separated, thereby improving the stability of the dual power transfer switch during opening and closing. Optionally, the buffer member 8 can be a rubber member or a silicone member.

[0067] Combine Figure 2 、 Figure 12 and Figure 13As shown, in some embodiments, the housing 1 includes a cover 11 and a bottom shell 12. The cover 11 is buckled onto the bottom shell 12. A signal switch 9 is provided in the space enclosed by the bottom shell 12 and the cover 11. A slide 13 is provided on the cover 11. The slide 13 can slide between a first position and a second position on the cover 11. A trigger 131 is provided on the side of the slide 13 facing the cover 11. The trigger 131 passes through the cover 11. When the slide 13 is in the first position, the trigger 131 triggers the signal switch 9. When the slide 13 is in the second position, the trigger 131 does not trigger the signal switch 9. When the slide 13 is in the first position, the dual power conversion switch is in automatic mode. When the slide 13 is in the second position, the dual power conversion switch is in manual mode, thereby ensuring that the dual power conversion switch can be closed by the operating handle. The signal switch 9 is a micro switch. When the micro switch is triggered, it generates a signal and transmits the signal to the controller of the dual power supply system.

[0068] Alternatively, as Figures 12 to 15 As shown, a limiting portion 111 is provided on the side of the front cover 11 facing the sliding cover 13, and a first mating portion 132 and a second mating portion 133 are provided on the side of the sliding cover 13 facing the front cover 11. When the sliding cover 13 is in the first position, the limiting portion 111 is connected to the first mating portion 132. When the sliding cover 13 is in the second position, the limiting portion 111 is connected to the second mating portion 133. During the switching process, the first position and the second position can be distinguished more intuitively.

[0069] The stopper 111 includes an elastic snap that is elastically connected to the front cover 11. The first and second mating portions 132, 133 each include a snap-in slot into which the elastic snap is snapped. To switch between manual and automatic modes, a force is applied to the sliding cover 13 to disengage the snap from its previous slot. As the sliding cover 13 slides, the snap then snaps into the next slot.

[0070] The cover 11 is provided with long strip through holes at intervals, which extend along the sliding direction of the slide cover 13. The trigger member 131 passes through one of the through holes. The slide cover 13 is provided with a slider on the side facing the cover 11, which slides in the other through hole.

[0071] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A dual power transfer switch, characterized in that: include: A housing (1), wherein a limiting member (2) is provided in the housing (1); A moving contact system (3) is slidably arranged in the housing (1); A static contact system (4) is fixedly arranged in the housing (1); A drive system (5) is arranged in the housing (1), the drive system (5) is connected to the moving contact system (3), and a limit block (6) is provided at the drive end of the drive system (5); The driving system (5) is used to drive the moving contact system (3) to slide and the limiting block (6) to rotate, so that the moving contact system (3) and the static contact system (4) are in contact or separated, and when in contact, the limiting block (6) is stopped by the limiting member (2).

2. The dual power conversion switch according to claim 1, characterized in that: The limiting members (2) are provided with two, namely a first limiting member (2a) and a second limiting member (2b); The movable contact system (3) is provided with two, namely a first movable contact system (3a) and a second movable contact system (3b); the two ends of each movable contact system (3) are respectively provided with the static contact system (4), and the two static contact systems (4) on the outgoing line side are conductively connected; The driving system (5) is used to drive the first moving contact system (3a) and the second moving contact system (3b) to slide, so that the first moving contact system (3a) is separated from the corresponding static contact system (4), the second moving contact system (3b) is in contact with the corresponding static contact system (4), and the limit block (6) is stopped by the first limit member (2a); or the first moving contact system (3a) is in contact with the corresponding static contact system (4), the second moving contact system (3b) is separated from the corresponding static contact system (4), and the limit block (6) is stopped by the second limit member (2b).

3. The dual power transfer switch according to claim 2, characterized in that: The drive system (5) includes a drive component (51) and two transmission components (52), the two transmission components (52) being a first transmission component (52a) and a second transmission component (52b), the first transmission component (52a) and the second transmission component (52b) both comprising a rocker (521) and a connecting rod unit (522), the first end of the rocker (521) being connected to the drive component (51), the first end of the connecting rod unit (522) being provided with a first waist-shaped hole (526), ​​the second end of the rocker (521) being rotatably connected to the first waist-shaped hole (526) via a first rotating member (524), and the first rotating member (524) being able to slide in the first waist-shaped hole (526), ​​the second end of the connecting rod unit (522) being rotatably connected to the corresponding first moving contact system (3a) or the second moving contact system (3b) via a second rotating member (525).

4. The dual power conversion switch according to claim 3, characterized in that: The driving assembly (51) comprises a driving motor (511) and a rotating shaft (512), wherein the rotating shaft (512) is connected to the output shaft of the driving motor (511) in a transmission manner, and the axis of the rotating shaft (512) is parallel to the output shaft of the driving motor (511), the limiting block (6) is fixedly arranged on the rotating shaft (512), the rocker (521) of the first transmission assembly (52a) and the rocker (521) of the second transmission assembly (52b) are respectively fixedly arranged on the rotating shaft (512), and the two rocker (521) are arranged at an angle; And / or, a status indicator (7) is fixedly provided on the rotating shaft (512).

5. The dual power transfer switch according to claim 3, characterized in that: The connecting rod unit (522) includes a first connecting rod (5221) and a second connecting rod (5222), wherein the first end of the first connecting rod (5221) is provided with the first waist-shaped hole (526), ​​and the first end of the second connecting rod (5222) is provided with the second waist-shaped hole (5223), the second end of the first connecting rod (5221) is rotatably connected to the second waist-shaped hole (5223) through the second rotating member (525), and the second rotating member (525) can slide in the second waist-shaped hole (5223), the second end of the second connecting rod (5222) is rotatably connected to the housing (1), and the outer shell of the second connecting rod (5222) is provided with an elastic member (523), and the two ends of the elastic member (523) respectively abut against the rotation connection between the second rotating member (525) and the second connecting rod (5222).

6. The dual power transfer switch according to claim 5, characterized in that: The connecting rod unit (522) also includes a third connecting rod (5224), which is a U-shaped structure. The second end of the first connecting rod (5221) and the first end of the second connecting rod (5222) are placed between the two side walls of the third connecting rod (5224), and the second rotating member (525) passes through the two side walls of the third connecting rod (5224) and is connected to a stop member at its end.

7. The dual power conversion switch according to any one of claims 1 to 6, characterized in that: The movable contact system (3) includes a contact support (31), the contact support (31) is slidably arranged in the housing (1), a plurality of movable contact assemblies (32) are provided on the contact support (31), the movable contact assembly (32) includes two movable contacts (321) and two spring pieces (322), the two spring pieces (322) are opposite and spaced apart, and the middle of the spring pieces (322) is connected to the contact support (31), the two movable contacts (321) are arranged between the two spring pieces (322), both ends of the movable contact (321) are provided with a plug-in block (323), both ends of the spring piece (322) are provided with a plug-in hole (324), the two ends of the spring piece (322) are pressed against the two ends of the movable contact (321), and the plug-in block (323) is plugged into the corresponding plug-in hole (324).

8. The dual power conversion switch according to claim 7, characterized in that: The plug-in hole (324) is a long strip-shaped hole, and the plug-in hole (324) extends along the length direction of the moving contact (321).

9. The dual power conversion switch according to any one of claims 1 to 6, characterized in that: Along the sliding direction of the moving contact system (3), buffer members (8) are respectively provided at positions corresponding to the two ends of the moving contact system (3) in the housing (1).

10. The dual power transfer switch according to any one of claims 1 to 6, characterized in that: The housing (1) comprises a cover (11) and a bottom shell (12); the cover (11) is buckled on the bottom shell (12); a signal switch (9) is provided in a space enclosed by the bottom shell (12) and the cover (11); a sliding cover (13) is provided on the cover (11); the sliding cover (13) can slide between a first position and a second position on the cover (11); a trigger member (131) is provided on a side of the sliding cover (13) facing the cover (11); the trigger member (131) penetrates the cover (11); when the sliding cover (13) is in the first position, the trigger member (131) triggers the signal switch (9); when the sliding cover (13) is in the second position, the trigger member (131) does not trigger the signal switch (9).

11. The dual power transfer switch according to claim 10, characterized in that: The side of the surface cover (11) facing the sliding cover (13) is provided with a limiting portion (111), and the side of the sliding cover (13) facing the surface cover (11) is provided with a first matching portion (132) and a second matching portion (133). When the sliding cover (13) is placed in the first position, the limiting portion (111) is connected to the first matching portion (132); when the sliding cover (13) is placed in the second position, the limiting portion (111) is connected to the second matching portion (133).

12. The dual power conversion switch according to any one of claims 1 to 6, characterized in that: The limiting member (2) and the housing (1) are an integrally connected structure.

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