Dual-power change-over switch

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a dual-power change-over switch, which comprises a handle, a shell, an operating mechanism and a sliding cover, a sliding chute is arranged outside the shell, an operating channel and at least one positioning structure are arranged at the bottom of the sliding chute, and the positioning structure comprises two elastic arms which are spaced along a first direction. A first clamping groove and a second clamping groove are formed between the two elastic arms; the operating mechanism is arranged in the shell; the sliding cover is arranged in the sliding groove in a sliding mode in the second direction, the sliding cover is provided with positioning columns corresponding to the positioning structures in a one-to-one mode, the positioning columns are arranged between the two corresponding elastic arms in a penetrating mode, and the sliding cover has a first position and a second position; at the first position, the positioning column is clamped with the first clamping groove, and the projection of the operation channel in the third direction is located in the sliding cover. At the second position, the positioning column is clamped with the second clamping groove, and the projection of the operation channel in the third direction is located outside the sliding cover. According to the dual-power change-over switch provided by the utility model, the sliding cover can shield the operation channel so as to prevent potential safety hazards.

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] In related technologies, an operating mechanism is located within a housing, and a microswitch is installed on the housing. The microswitch is used to control the opening and closing of the automatic control system. When the automatic control system is on, the operating mechanism automatically switches between on and off states. Furthermore, the housing is provided with an operating channel for a handle to pass through. The handle passes through the operating channel and connects to the operating mechanism, allowing manual switching of the on and off states. The operating channel is connected to the interior of the housing, posing a potential safety hazard if used for an extended period. Utility Model Content

[0004] The purpose of the utility model is to provide a dual power supply transfer switch which can shield an operating channel.

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

[0006] A dual power transfer switch is provided, comprising:

[0007] handle;

[0008] A housing, wherein a slide groove is provided on the outside of the housing, an operating channel and at least one positioning structure are provided at the bottom of the slide groove, the positioning structure comprising two elastic arms spaced apart along a first direction, and a first clamping groove and a second clamping groove spaced apart along a second direction are formed between the two elastic arms;

[0009] an operating mechanism, disposed in the housing;

[0010] a sliding cover, slidably disposed in the sliding groove along a second direction, wherein at least one positioning post corresponding to the positioning structure is provided on a side of the sliding cover facing the bottom of the sliding groove, the positioning post being passed between the corresponding two elastic arms, and the sliding cover sliding along the second direction to have a first position and a second position;

[0011] Wherein, in the first position, the positioning post is engaged with the first slot, and the projection of the operating channel along the third direction is located inside the sliding cover;

[0012] In the second position, the positioning column is engaged with the second slot, the projection of the operating channel along the third direction is located outside the sliding cover, and the handle can pass through the operating channel and be connected to the operating mechanism.

[0013] Optionally, the elastic arm includes a first groove and a second groove spaced apart along the second direction, the first card groove is formed between the first grooves of the two elastic arms of the same positioning structure, and the second card groove is formed between the second grooves of the two elastic arms of the same positioning structure.

[0014] Optionally, a first easing hole is provided at the bottom of the sliding groove, and both ends of the elastic arm are connected to two sides of the first easing hole along the second direction in a one-to-one correspondence.

[0015] Optionally, the bottom of the slide groove is provided with an elongated hole extending along the second direction, and the sliding cover is provided with a limiting portion on the side of the slide groove bottom facing the slide groove, and the limiting portion is passed through the elongated hole and forms a limiting fit along the third direction with the side of the elongated hole away from the sliding cover.

[0016] Optionally, the limiting portion includes two first inverted buckles arranged at intervals along the first direction, and the two first inverted buckles are symmetrically arranged, the first inverted buckle includes a first extension arm connected to the sliding cover and a first buckle block provided on the first extension arm, the first extension arm is passed through the elongated hole, and the first buckle block forms a limiting fit with the side of the elongated hole facing away from the sliding cover along the third direction.

[0017] Optionally, the positioning column includes two second inverted buckles arranged at intervals along the first direction, and the two second inverted buckles are symmetrically arranged, the second inverted buckle includes a second extension arm connected to the sliding cover and a second buckle block provided on the second extension arm, the second extension arm is passed between the corresponding two elastic arms, and the second buckle block and the corresponding elastic arm form a limiting fit along the third direction on the side facing away from the sliding cover.

[0018] Optionally, a placement slot is provided on the outside of the shell, and the handle is detachably disposed in the placement slot.

[0019] Optionally, it also includes:

[0020] The moving contact is arranged in the housing;

[0021] a soft connection, both ends of which are connected to the moving contact;

[0022] Terminal block, connected to the middle part of the soft connection.

[0023] Optionally, the operating mechanism includes a driving member and a transmission assembly connected to the driving member, and the driving member and the transmission assembly are arranged in the housing;

[0024] The dual power conversion switch further includes a micro switch disposed in the housing;

[0025] Wherein, in the first position, the driving member can drive the transmission assembly to switch the switching state of the dual power conversion switch;

[0026] In the second position, the handle can pass through the operating channel and connect with the transmission assembly;

[0027] The sliding cover triggers the micro switch at one of the first position and the second position, and disconnects the micro switch at the other position.

[0028] Optionally, a trigger portion is provided on the sliding cover, a second clearance hole is provided on the groove wall of the sliding groove, the trigger portion is passed through the second clearance hole, and the trigger portion is used to trigger or disconnect the micro switch.

[0029] Optionally, two clamping plates are provided in the housing, the transmission assembly is provided between the two clamping plates, and the driving member is fixed on one of the two clamping plates;

[0030] Wherein, the splint includes a plate body and a plurality of connecting ears and a plurality of connecting holes provided on the plate body. The connecting ears of one of the two splints are against the plate body of the other and correspond one-to-one with the connecting holes of the other. The connecting ears are threadedly fastened to the connecting holes through screw connectors.

[0031] Beneficial Effects: The dual power conversion switch provided by the utility model has a first position in which the projection of the operating channel along the third direction is located inside the sliding cover, i.e., the sliding cover blocks the operating channel to prevent safety hazards, and the positioning post engages with the first slot to stably maintain the sliding cover in the first position. When the sliding cover is in the second position, the projection of the operating channel along the third direction is located outside the sliding cover, i.e., the sliding cover and the operating channel are misaligned, and the handle can pass through the operating channel and connect to the operating mechanism to achieve manual switch state conversion. The positioning post engages with the second slot to stably maintain the sliding cover in the second position, effectively preventing the sliding cover from accidentally sliding and affecting the handle's passage through the operating channel. In addition, the first slot and the second slot are formed by two elastic arms. When the positioning post moves and switches between the first and second positions, the provision of the two elastic arms in the positioning structure can effectively reduce the deformation of the elastic arms caused by being squeezed by the positioning post, effectively extending the service life of the elastic arms, and ensuring the stability of the engagement between the first and second slots and the positioning post. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a partial structural enlarged schematic diagram of the dual power transfer switch provided by the utility model;

[0033] Figure 2 This is a structural diagram of the dual power conversion switch provided by the utility model with the sliding cover in the first position;

[0034] Figure 3 This is a partial structural diagram of the dual power conversion switch provided by the utility model with the slide cover in the second position;

[0035] Figure 4 This is an enlarged schematic diagram of the local structure of the top cover provided by the utility model;

[0036] Figure 5 This is a structural diagram of the sliding cover provided by the utility model;

[0037] Figure 6 It is a structural diagram of the operating mechanism provided by the utility model;

[0038] Figure 7 This is a partial structural diagram of the dual power transfer switch provided by the utility model;

[0039] Figure 8 This is a partial structural cross-sectional view of the dual power transfer switch provided by the utility model with the slide cover in the second position;

[0040] Figure 9 It is a structural exploded diagram of two splints provided by the utility model.

[0041] In the picture:

[0042] 100. Handle; 110. Snap-in slot;

[0043] 200, housing; 201, base; 202, top cover; 210, slide groove; 220, operating channel; 230, elastic arm; 2301, first groove; 2302, second groove; 231, first clamping slot; 232, second clamping slot; 240, first clearance hole; 250, elongated hole; 260, placement slot; 270, fixing hole; 280, support portion; 281, support groove; 290, second clearance hole;

[0044] 300, operating mechanism; 310, driving member; 320, transmission assembly; 330, clamping plate; 331, plate body; 332, connecting ear; 333, connecting hole;

[0045] 400, sliding cover; 410, positioning column; 420, limiting portion; 421, first undercut; 4211, first extension arm; 4212, first buckle block; 430, raised portion; 440, trigger portion;

[0046] 510, moving contact; 520, flexible connection; 530, terminal block; 531, mounting hole; 532, wiring hole; 533, round hole;

[0047] 600, micro switch; 610, switch body; 620, elastic sheet. DETAILED DESCRIPTION

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] Reference Figures 1 to 6 As shown, this embodiment provides a dual power transfer switch, which includes a handle 100 , a housing 200 , an operating mechanism 300 and a sliding cover 400 .

[0053] Specifically, a slide groove 210 is provided on the outside of the shell 200, and an operating channel 220 and at least one positioning structure are provided at the bottom of the slide groove 210. The positioning structure includes two elastic arms 230 spaced apart along the first direction, and a first card groove 231 and a second card groove 232 spaced apart along the second direction are formed between the two elastic arms 230 of the same positioning structure; the operating mechanism 300 is provided in the shell 200; the sliding cover 400 is provided in the slide groove 210 and slides along the second direction. At least one positioning column 410 corresponding to the positioning structure is provided on the side of the sliding cover 400 facing the bottom of the slide groove 210. The positioning column 410 is passed between the corresponding two elastic arms 230, and the sliding cover 400 slides along the second direction to have a first position and a second position.

[0054] Specifically, at the first position, the positioning post 410 is engaged with the first engaging slot 231 , and the projection of the operating channel 220 along the third direction is located inside the sliding cover 400 .

[0055] Specifically, in the second position, the positioning column 410 is engaged with the second slot 232 , the projection of the operating channel 220 along the third direction is located outside the sliding cover 400 , and the handle 100 can pass through the operating channel 220 and connect with the operating mechanism 300 .

[0056] In this embodiment, the first direction, the second direction, and the third direction may be perpendicular to each other. For example, the first direction may be the length direction of the dual power conversion switch, the second direction may be the width direction of the dual power conversion switch, and the third direction may be the height direction of the dual power conversion switch.

[0057] In this embodiment, when the sliding cover 400 is in the first position, the projection of the operating channel 220 along the third direction is located within the sliding cover 400, that is, the sliding cover 400 blocks the operating channel 220 to prevent safety hazards. The positioning post 410 engages with the first engaging slot 231 to stably maintain the sliding cover 400 in the first position. It is understood that the safety hazard may be insects, dust, water vapor, etc. entering the housing 200 through the operating channel 220.

[0058] In this embodiment, when the sliding cover 400 is in the second position, the projection of the operating channel 220 along the third direction is located outside the sliding cover 400, that is, the sliding cover 400 and the operating channel 220 are misaligned, and the handle 100 can pass through the operating channel 220 and be connected to the operating mechanism 300 to realize the conversion of the manual switch state, and the positioning column 410 is engaged with the second card slot 232, so that the sliding cover 400 can be stably maintained in the second position, effectively preventing the sliding cover 400 from accidentally sliding and affecting the handle 100 from passing through the operating channel 220.

[0059] In addition, the first card slot 231 and the second card slot 232 are formed by two elastic arms 230. When the positioning column 410 moves and switches between the first position and the second position, the setting of the two elastic arms 230 in the positioning structure can effectively reduce the deformation of the elastic arm 230 caused by the squeezing of the positioning column 410, effectively extend the service life of the elastic arm 230, and ensure the stability of the connection between the first card slot 231 and the second card slot 232 and the positioning column 410.

[0060] Illustratively, when a plurality of positioning structures are provided, the plurality of positioning structures may be spaced apart along the first direction.

[0061] Exemplarily, the housing 200 includes a base 201 and a top cover 202 disposed on the base 201 to facilitate assembly of internal parts of the housing 200. The slide groove 210 is disposed on the top cover 202.

[0062] In one feasible embodiment, the elastic arm 230 includes a first groove 2301 and a second groove 2302 spaced apart along the second direction. A first engaging groove 231 is formed between the first grooves 2301 of the two elastic arms 230 in the same positioning structure, and a second engaging groove 232 is formed between the second grooves 2302 of the two elastic arms 230 in the same positioning structure. This can further reduce the deformation of the elastic arm 230 caused by being squeezed by the positioning post 410, extend the service life of the elastic arm 230, and ensure the stability of the engagement between the first engaging groove 231 and the second engaging groove 232 and the positioning post 410. Of course, in the same positioning structure, the first groove 2301 and the second groove 2302 can be provided on only one elastic arm 230; or the first groove 2301 can be provided on one of the two elastic arms 230, and the second groove 2302 can be provided on the other.

[0063] In some embodiments, a first clearance hole 240 is provided at the bottom of the slide groove 210, and both ends of the elastic arm 230 are connected to both sides of the first clearance hole 240 along the second direction in a one-to-one correspondence, effectively ensuring the compactness of the dual power conversion switch.

[0064] For example, the elastic arm 230 and the top cover 202 may be integrally formed to facilitate processing and manufacturing.

[0065] In other embodiments, the elastic arm 230 can be disposed within a frame (not shown), such as a rectangular frame, which is embedded within the bottom of the chute 210. The elastic arm 230 can be integrally formed with the frame. If the elastic arm 230 is damaged, the frame connected to the elastic arm 230 can be replaced. Exemplary connection methods for connecting the rectangular frame to the housing 200 include, but are not limited to, gluing, threading, and snap-fit ​​connections.

[0066] In this embodiment, referring to Figure 1 、 Figure 4 and Figure 5 As shown, the bottom of the slide groove 210 is provided with an elongated hole 250 extending in the second direction, and a limiting portion 420 is provided on the side of the slide cover 400 facing the bottom of the slide groove 210. The limiting portion 420 is disposed through the elongated hole 250 and forms a limiting engagement along the third direction with the side of the elongated hole 250 facing away from the slide cover 400, thereby preventing the slide cover 400 from separating from the slide groove 210. In this embodiment, in the first position, the limiting portion 420 can form a limiting engagement with one end of the elongated hole 250 along the second direction, thereby preventing the positioning post 410 from continuing to move toward the first engaging slot 231 away from the second engaging slot 232. In the second position, the limiting portion 420 can form a limiting engagement with the other end of the elongated hole 250 along the second direction, thereby preventing the positioning post 410 from continuing to move toward the second engaging slot 232 away from the first engaging slot 231, thereby protecting the elastic arm 230.

[0067] In some embodiments, the retaining portion 420 includes two first undercuts 421 spaced apart along the first direction, and the two first undercuts 421 are symmetrically arranged. The first undercuts 421 include a first extension arm 4211 connected to the sliding cover 400 and a first buckle 4212 disposed on the first extension arm 4211. The first extension arm 4211 extends through the elongated hole 250, and the first buckle 4212 forms a retaining engagement with the side of the elongated hole 250 facing away from the sliding cover 400 along the third direction. It is understood that the first buckle 4212 can abut against the side of the elongated hole 250 facing away from the sliding cover 400 along the third direction. In this embodiment, the retaining portion 420 comprises two first undercuts 421, which facilitates assembly of the sliding cover 400 with respect to the housing 200 and effectively prevents the sliding cover 400 from disengaging from the chute 210.

[0068] Exemplarily, the cross-sectional shape of the first extension arm 4211 may be a fan-shaped ring.

[0069] For example, the cross-section of the first buckle block 4212 may be in the shape of a fan ring.

[0070] For example, the sliding cover 400 is provided with two limiting portions 420 spaced apart along the first direction, and the elongated holes 250 are provided in a one-to-one correspondence with the limiting portions 420 to ensure stable and reliable movement of the sliding cover 400 along the second direction. The positioning post 410 is located between the two limiting portions 420 along the first direction.

[0071] In some embodiments, the limiting portion 420 includes a limiting post (not shown) connected to the sliding cover 400 and a limiting block (not shown) provided at the end of the limiting post facing away from the sliding cover 400. The limiting post passes through the elongated hole 250, and the limiting block forms a limiting engagement with the side of the elongated hole 250 facing away from the sliding cover 400 along the third direction. The connection methods between the limiting post and the sliding cover 400 include, but are not limited to, gluing, threading, and snap-fitting.

[0072] Of course, the limiting portion 420 can also be in other structural forms, which is not limited in this application.

[0073] In some embodiments, the positioning post 410 may be cylindrical. For example, a groove may be provided at the center of the positioning post 410 to ensure the molding quality of the positioning post 410.

[0074] In other embodiments, the positioning post 410 includes two second undercuts (not shown) spaced apart along the first direction, and the two second undercuts are symmetrically arranged. The second undercuts include a second extension arm connected to the sliding cover 400 and a second buckle block provided on the second extension arm. The second extension arm is inserted between the corresponding two elastic arms 230. The second buckle block forms a limiting engagement with the corresponding elastic arm 230 on the side facing away from the sliding cover 400 along the third direction. In this embodiment, the sliding cover 400 may or may not be provided with the limiting portion 420, which is not limited in this application.

[0075] In this embodiment, referring to Figure 3 As shown, a protrusion 430 is provided on one side of the sliding cover 400 away from the bottom of the sliding groove 210 , and the sliding cover 400 can be moved by pushing and pulling the protrusion 430 , which is convenient for operation.

[0076] In this embodiment, continue to refer to Figure 3 As shown, a placement groove 260 is provided on the outside of the housing 200, and the handle 100 is detachably arranged in the placement groove 260 to provide a positioning and accommodation space for the handle 100, which is convenient for taking and placing when manual operation of the dual power conversion switch is required.

[0077] Specifically, the handle 100 includes a grip portion and a rod portion connected to the grip portion. The grip portion is for an operator to grip, and the rod portion is used to connect with the operating mechanism 300 .

[0078] Illustratively, a fixing hole 270 is provided at the bottom of the placement groove 260 , and the rod portion of the handle 100 is passed through the fixing hole 270 .

[0079] Illustratively, a snap-fit ​​structure (not shown) can be provided on the hole wall of the fixing hole 270, and the rod portion of the handle 100 can be provided with a snap-fit ​​groove 110. When the handle 100 is placed in the placement groove 260, the rod portion of the handle 100 passes through the fixing hole 270, and the snap-fit ​​structure is snapped into the snap-fit ​​groove 110 to prevent the handle 100 from detaching from the placement groove 260.

[0080] For example, a support portion 280 may be provided in the placement groove 260, and a support groove 281 may be provided on the support portion 280. The support groove 281 supports the grip portion of the limit handle 100 to achieve the positioning and placement of the handle 100. Optionally, the placement groove 260 is provided on one side of the top cover 202 along the first direction, and two support portions 280 are provided at intervals along the second direction, and the fixing hole 270 is located between the two support portions 280 along the second direction.

[0081] In this embodiment, referring to Figure 7 As shown, the dual power transfer switch further includes a movable contact 510, a flexible coupling 520, and a terminal block 530. The movable contact 510 is disposed within the housing 200, with both ends of the flexible coupling 520 connected to the movable contact 510, and the terminal block 530 connected to the middle of the flexible coupling 520. The operating mechanism 300 can drive the movable contact 510 to rotate to switch the dual power transfer switch between on and off states. Compared to the conventional method of connecting the movable contact 510 and the terminal block 530 via two flexible couplings 520, in this embodiment, the movable contact 510 and the terminal block 530 are connected via a single flexible coupling 520, which optimizes the production process and effectively improves welding efficiency and quality stability.

[0082] Illustratively, at least one mounting hole 531 is provided on the terminal block 530, and screws are passed through the mounting holes 531 in a one-to-one correspondence and are threadedly fastened to the housing 200 to fix the terminal block 530 to the housing 200. Optionally, providing one mounting hole 531 on the terminal block 530 can optimize the production process and improve assembly efficiency.

[0083] Exemplarily, the terminal block 530 is provided with a wiring hole 532 and a plurality of circular holes 533 disposed around the wiring hole 532 to increase the current-carrying surface area of ​​the terminal block 530 and effectively address the problem of high temperature rise. Optionally, the terminal block 530 is provided with two to eight circular holes 533, for example, four or six.

[0084] In this embodiment, the dual power transfer switch includes an automatic control mode and a manual control mode. In the first position, the dual power transfer switch is in the automatic control mode; in the second position, the dual power transfer switch is in the manual control mode.

[0085] In this embodiment, referring to Figure 1 、 Figure 3 、 Figure 6 、 Figure 8 and Figure 9As shown, the operating mechanism 300 includes a driver 310 and a transmission assembly 320 connected to the driver 310. The driver 310 and transmission assembly 320 are disposed within the housing 200. The dual power switch also includes a microswitch 600 disposed within the housing 200. In a first position, the driver 310 drives the transmission assembly 320 to switch the dual power switch. In a second position, the handle 100 passes through the operating channel 220 and connects to the transmission assembly 320. In this embodiment, the sliding cover 400 activates the microswitch 600 in one of the first and second positions and deactivates the microswitch 600 in the other position. For example, when the slide cover 400 triggers the micro switch 600 in the first position and disconnects the micro switch 600 in the second position, when the micro switch 600 is triggered, an automatic control signal is sent to the remote control device, allowing the remote control device to remotely control the driver 310 to drive the transmission assembly 320 to switch the dual power conversion switch. When the micro switch 600 is disconnected, a manual control signal is sent to the remote control device, preventing the remote control device from remotely controlling the driver 310 to drive the transmission assembly 320 to switch the dual power conversion switch, thereby facilitating the switching of the control state of the dual power conversion switch. The specific structure of the transmission assembly 320 is prior art and is not the focus of protection of this application, so it will not be described in detail here.

[0086] In one feasible embodiment, a trigger portion 440 is provided on the sliding cover 400, and a second clearance hole 290 is provided on the wall of the sliding groove 210. The trigger portion 440 is disposed through the second clearance hole 290 and is used to trigger or disconnect the micro switch 600. In this embodiment, the position of the trigger portion 440 relative to the sliding cover 400 can be designed based on the position of the micro switch 600 relative to the housing 200. The sliding cover 400 triggers or disconnects the micro switch 600 via the trigger portion 440, resulting in a simple and compact structure.

[0087] Exemplarily, the trigger portion 440 may be plate-shaped to ensure the compactness of the dual power conversion switch.

[0088] Illustratively, the micro switch 600 includes a switch body 610 and an elastic sheet 620 . The triggering portion 440 can trigger the micro switch 600 by squeezing the elastic sheet 620 and disconnect the micro switch 600 by giving way to the elastic sheet 620 .

[0089] In one feasible embodiment, two clamping plates 330 are provided within the housing 200, the transmission assembly 320 is disposed between the two clamping plates 330, and the driving member 310 is fixed to one of the two clamping plates 330. The clamping plates 330 include a plate body 331 and a plurality of connecting ears 332 and a plurality of connecting holes 333 disposed on the plate body 331. The connecting ears 332 of one of the two clamping plates 330 abut against the plate body 331 of the other and correspond one-to-one with the connecting holes 333 of the other. The connecting ears 332 are threadedly fastened to the connecting holes 333 via screws. Compared to conventional techniques in which the transmission assembly 320 is supported by two clamping plates 330 of different structures, two clamping plates 330 of the same structure are more convenient to assemble. For example, the micro switch 600 can be disposed on one of the two clamping plates 330.

[0090] In this embodiment, the dual power conversion switch further includes a padlock mode, wherein in the padlock mode, the handle 100 and the driving member 310 cannot drive the transmission assembly 320 to switch the dual power conversion switch.

[0091] In one feasible embodiment, a third slot (not shown) is further formed between the two elastic arms 230 of the same positioning structure. The third slot is spaced apart from the first slot 231 and the second slot 232 along the second direction. In this embodiment, the sliding cover 400 further has a third position when slid along the second direction. In this third position, the positioning post 410 engages with the third slot. Exemplarily, when the positioning post 410 engages with the third slot, the dual power switch can be in padlock mode. Exemplarily, the third slot can be located along the second direction on the side of the second slot 232 facing away from the first slot 231.

[0092] 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: handle (100); A housing (200), wherein a slide groove (210) is provided on the outside of the housing (200), an operating channel (220) and at least one positioning structure are provided at the bottom of the slide groove (210), the positioning structure comprising two elastic arms (230) spaced apart along a first direction, and a first clamping groove (231) and a second clamping groove (232) spaced apart along a second direction are formed between the two elastic arms (230) of the same positioning structure; An operating mechanism (300) is disposed in the housing (200); The sliding cover (400) is arranged in the sliding groove (210) for sliding along the second direction. The sliding cover (400) is provided with at least one positioning post (410) corresponding to the positioning structure on one side of the bottom of the sliding groove (210). The positioning post (410) is passed between the corresponding two elastic arms (230). The sliding cover (400) slides along the second direction to have a first position and a second position. Wherein, at the first position, the positioning column (410) is engaged with the first slot (231), and the projection of the operating channel (220) along the third direction is located inside the sliding cover (400); In the second position, the positioning column (410) is engaged with the second slot (232), the projection of the operating channel (220) along the third direction is located outside the sliding cover (400), and the handle (100) can pass through the operating channel (220) and be connected to the operating mechanism (300).

2. The dual power conversion switch according to claim 1, characterized in that: The elastic arm (230) comprises a first groove (2301) and a second groove (2302) arranged at intervals along the second direction; the first clamping groove (231) is formed between the first grooves (2301) of the two elastic arms (230) of the same positioning structure; and the second clamping groove (232) is formed between the second grooves (2302) of the two elastic arms (230) of the same positioning structure.

3. The dual power conversion switch according to claim 1, characterized in that: A first clearance hole (240) is provided at the bottom of the sliding groove (210), and two ends of the elastic arm (230) are connected to two sides of the first clearance hole (240) in a one-to-one correspondence along the second direction.

4. The dual power transfer switch according to claim 1, characterized in that: The bottom of the slide groove (210) is provided with an elongated hole (250) extending along the second direction, and the sliding cover (400) is provided with a limiting portion (420) on the side of the groove bottom facing the slide groove (210). The limiting portion (420) is passed through the elongated hole (250) and forms a limiting fit along the third direction with the side of the elongated hole (250) facing away from the sliding cover (400).

5. The dual power transfer switch according to claim 4, characterized in that: The limiting portion (420) includes two first inverted buckles (421) spaced apart along a first direction, and the two first inverted buckles (421) are symmetrically arranged, the first inverted buckle (421) includes a first extension arm (4211) connected to the sliding cover (400) and a first buckle block (4212) provided on the first extension arm (4211), the first extension arm (4211) is passed through the elongated hole (250), and the first buckle block (4212) forms a limiting fit along a third direction with the side of the elongated hole (250) facing away from the sliding cover (400).

6. The dual power conversion switch according to claim 1, characterized in that: The positioning column (410) includes two second undercuts spaced apart along a first direction, and the two second undercuts are symmetrically arranged, the second undercut includes a second extension arm connected to the sliding cover (400) and a second buckle block provided on the second extension arm, the second extension arm is passed between the corresponding two elastic arms (230), and the second buckle block forms a limiting fit with the corresponding elastic arm (230) on the side facing away from the sliding cover (400) along a third direction.

7. The dual power conversion switch according to claim 1, characterized in that: A placement groove (260) is provided on the outside of the housing (200), and the handle (100) is detachably disposed in the placement groove (260).

8. The dual power conversion switch according to claim 1, characterized in that: Also includes: A moving contact (510) is disposed in the housing (200); a soft connection (520), both ends of the soft connection (520) being connected to the moving contact (510); The terminal block (530) is connected to the middle portion of the soft connection (520).

9. The dual power conversion switch according to any one of claims 1 to 8, characterized in that: The operating mechanism (300) includes a driving member (310) and a transmission assembly (320) connected to the driving member (310), and the driving member (310) and the transmission assembly (320) are arranged in the housing (200); The dual power conversion switch further includes a micro switch (600) disposed in the housing (200); Wherein, in the first position, the driving member (310) can drive the transmission assembly (320) to switch the switching state of the dual power conversion switch; In the second position, the handle (100) can pass through the operating channel (220) and connect with the transmission assembly (320); The sliding cover (400) triggers the micro switch (600) at one of the first position and the second position, and disconnects the micro switch (600) at the other position.

10. The dual power conversion switch according to claim 9, characterized in that: The sliding cover (400) is provided with a trigger portion (440), a second clearance hole (290) is provided on the groove wall of the sliding groove (210), the trigger portion (440) is passed through the second clearance hole (290), and the trigger portion (440) is used to trigger or disconnect the micro switch (600).

11. The dual power conversion switch according to claim 9, characterized in that: Two clamping plates (330) are provided in the housing (200), the transmission assembly (320) is provided between the two clamping plates (330), and the driving member (310) is fixed on one of the two clamping plates (330); The splint (330) includes a plate body (331) and a plurality of connecting ears (332) and a plurality of connecting holes (333) provided on the plate body (331). The connecting ears (332) of one of the two splints (330) are against the plate body (331) of the other and correspond one-to-one with the connecting holes (333) of the other. The connecting ears (332) are threadedly fastened to the connecting holes (333) through screw connectors.

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