Combined switch and indicator light mechanism

Abstract

The present invention relates to the technical field of transfer switches, disclosing a combination switch and its indicator light mechanism. The combination switch comprises a lamp holder, a conductive unit, and an indicator light unit. The indicator light unit is a standalone, replaceable unit comprising a circuit board and a status indicator light mounted on the circuit board. The indicator light unit is inserted into or pulled out of the lamp holder through an opening. When the indicator light unit is inserted into the lamp holder, it is electrically connected to an external circuit system via the conductive unit, thereby providing a status indication. The combination switch comprises an indicator light mechanism, a mounting holder, a handle, a switch body, and a rotating shaft. The present invention eliminates the need to remove the handle when installing or removing the indicator light; installation and removal can be completed by simply inserting or pulling the indicator light unit into or out of the opening of the lamp holder, greatly improving the convenience of installation and removal operations.

Description

Technical Field

[0001] The present invention relates to the technical field of transfer switches, in particular to a combined switch and an indicator light mechanism thereof. Background Art

[0002] A multi-position transfer switch is a switch that can switch between two or more power sources or loads and control the operation of various devices. It is widely used in daily life and industrial production, such as power plants, rail transfer stations, high-speed rail locomotives, subway locomotives, and ships. A multi-position transfer switch consists of multiple contact layers and a rotating shaft connecting each contact layer. Rotating the handle drives the shaft, thereby switching the corresponding gear. When installing a multi-position transfer switch, the handle is mounted on the outside of the control panel for the operator to rotate, while the other components are enclosed on the inside of the control panel.

[0003] To facilitate operation of multi-position switches, indicator lights are typically installed on or around the switch control panel to provide feedback on the control status. While this solution solves the status feedback issue, it requires additional space on the control panel, which increases the space required for the control panel or mounting plate. This inevitably leads to a larger mounting plate and results in significant material waste.

[0004] At present, in order to reduce the space occupied by the control panel, the indicator light mechanism is integrated with the switch body. However, when installing or removing the indicator light, this structure requires first removing the handle and then using special tools to screw the lamp bead on or off, which is very inconvenient. Summary of the Invention

[0005] The main purpose of the present invention is to overcome the defects described in the prior art, thereby providing an indicator light mechanism, which has an independent indicator light unit and can be directly installed or removed for easy use.

[0006] Another object of the present invention is to overcome the defects described in the prior art, thereby providing a combination switch, which includes an indicator light mechanism, thereby improving the convenience of installation or removal operations.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] An indicator light mechanism comprises: a lamp holder having an opening on a side surface; a conductive unit disposed in the lamp holder and electrically connected to an external circuit system; and an indicator light unit, which is an independent replaceable unit and comprises a circuit board and a status indicator light mounted on the circuit board, wherein the indicator light unit is inserted into or pulled out of the lamp holder through the opening. When the indicator light unit is inserted into the lamp holder, the indicator light unit is electrically connected to the external circuit system through the conductive unit, thereby providing a status indication.

[0009] As an practicable manner, the conductive unit has two symmetrically arranged conductors, and each of the conductors includes a slot portion, a connecting portion, and a fixing portion that are connected in sequence.

[0010] As an implementable method, copper sheets electrically connected to the slot parts are provided on both side edges of the circuit board. When the indicator light unit is inserted into the lamp holder, the both side edges of the circuit board slide along the slot parts of the two conductors respectively.

[0011] As an practicable manner, the conductive unit further includes two screws and two clips, the fixing portion is provided with threaded holes for connecting the screws, and the clips are arranged between the fixing portion and the screws.

[0012] As an implementable manner, the slot portions of the two conductors are parallel to each other, and the two slot portions are arranged opposite to each other with their openings facing inward.

[0013] As an implementable manner, the fixing portion is perpendicular to the slot portion and is arranged in the lamp holder toward the opening.

[0014] As an practicable manner, the two conductors are symmetrically arranged about a width midline of the opening.

[0015] As an implementable manner, the status indicator light is an LED patch light.

[0016] As an implementable manner, four LED patch lights are evenly arranged circumferentially around the center of the circuit board.

[0017] As an implementable manner, the indicator light unit further includes a rectifier bridge mounted on the circuit board, and the rectifier bridge is electrically connected to the LED patch lamp.

[0018] As an implementable manner, an anti-interference diode connected in parallel with the rectifier bridge is installed on the indicator light unit.

[0019] As an implementable manner, the indicator light unit is provided with an avoidance hole extending from the center to the edge.

[0020] As an implementable manner, the lamp holder includes a first shell and a second shell, and a half opening constituting the opening is formed on the same side surface of the first shell and the second shell.

[0021] As an implementable manner, a limiting block is provided on the lamp holder, and the limiting block is arranged at the opening to prevent the conductive unit from falling off from the second shell.

[0022] As an practicable manner, the opening is arranged downward to prevent dust and water.

[0023] As an practicable manner, the first shell and the second shell are both in the shape of square half shells, and a central hole for the rotation shaft to pass through is formed on the first shell and the second shell.

[0024] As an implementable manner, through holes are provided on four corners of the first shell and the second shell.

[0025] A combined switch comprises the above-mentioned indicator light mechanism.

[0026] As an practicable manner, the combination switch further includes a mounting seat, a handle, a switch body and a rotating shaft. The indicator light mechanism is arranged between the mounting seat and the switch body. The rotating shaft passes through the indicator light mechanism and the switch body and one end is connected to the handle. The handle is arranged on the mounting seat and is used to drive the rotating shaft to rotate or move.

[0027] As an practicable manner, a portion of the handle is a transparent cover through which the indicator light passes.

[0028] As an implementable manner, the mounting base is installed on the control panel, the handle is arranged on the mounting base corresponding to the outer side of the control panel, and the indicator light mechanism and the switch body are arranged corresponding to the inner side of the control panel.

[0029] As an implementable manner, the indicator light mechanism is fixedly connected between the mounting base and the switch body by bolts.

[0030] Compared with the prior art, the combined switch and indicator light mechanism provided by the present invention have the following beneficial effects:

[0031] The indicator light mechanism provided by the present invention includes a lamp holder, a conductive unit and an indicator light unit. An opening is provided on the side of the lamp holder, the conductive unit is installed in the lamp holder, and the indicator light unit is designed as an independent replaceable module, including a circuit board and a status indicator light installed on the circuit board. The indicator light unit can be inserted into or pulled out of the lamp holder through the opening. The combined switch includes an indicator light mechanism. The present invention does not require the removal of the handle when installing and disassembling the indicator light. The installation and disassembly can be completed by simply inserting or pulling the indicator light unit into or out of the opening of the lamp holder, which greatly improves the convenience of the installation and disassembly operations.

[0032] Furthermore, the opening of the lamp holder can be arranged downward, which can prevent dust and water, making the combination switch safer to use.

[0033] Furthermore, the lamp holder adopts a split design, including a first shell and a second shell that are combined in half, which can make the assembly of the lamp holder and its internal parts more convenient.

[0034] Furthermore, the present invention is also provided with a limit block to prevent the conductive unit from falling off.

[0035] Furthermore, an avoidance hole is provided on the circuit board for avoiding the rotating shaft and extends from the center to the edge. Multiple LED patch lights are evenly distributed circumferentially around the center of the circuit board, allowing light to be evenly transmitted from the transparent cover of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 A schematic structural diagram of an indicator light mechanism provided in an embodiment of the present invention;

[0038] Figure 2 An exploded view of the indicator light mechanism provided by an embodiment of the present invention;

[0039] Figure 3 A schematic diagram of the installation and removal of an indicator light unit of an indicator light mechanism provided by an embodiment of the present invention, wherein arrows indicate the directions of installation and removal;

[0040] Figure 4 A schematic structural diagram of a combination switch provided by an embodiment of the present invention;

[0041] Figure 5 This is an exploded view of the combination switch provided by an embodiment of the present invention.

[0042] Description of reference numerals:

[0043] 100. Combination switch; 10. Mounting base; 20. Handle; 30. Indicator light mechanism; 40. Switch body; 50. Rotating shaft;

[0044] 31. Lamp holder; 311. First housing; 312. Second housing; 313. Limit block; 314. Opening;

[0045] 32. Conductive unit; 321. Conductor; 322. Screw; 323. Clip; 3211. Slot portion; 3212. Connecting portion; 3213. Fixing portion;

[0046] 33. Indicator light unit; 331. Circuit board; 332. LED patch lamp; 333. Rectifier bridge; 334. Anti-interference diode; 3311. Avoidance hole; 3312. Wire; 3313. Copper sheet. DETAILED DESCRIPTION

[0047] The following is further explained in detail through specific implementation methods.

[0048] Example 1

[0049] like Figures 1 to 3 As shown, the indicator light mechanism 30 includes a lamp holder 31, a conductive unit 32, and an indicator light unit 33. The lamp holder 31 is generally square and has a central hole through which the rotating shaft 50 passes. The lamp holder 31 utilizes a split design, consisting of a first shell 311 and a second shell 312, which are combined in half. This facilitates assembly of the lamp holder 31 and its internal components. An opening 314 is provided on the side of the lamp holder 31 for connecting the conductive unit 32 to power and for installing or removing the indicator light unit 33.

[0050] The split design facilitates assembly of the lamp holder 31. This allows the lamp holder 31 to be directly assembled to secure the indicator light structure, reducing the manufacturing requirements for the lamp fixture mold and eliminating the need to install the indicator light structure in a dedicated mounting position. The split module eliminates horizontal displacement of the indicator light relative to the lamp holder 31, while the fixture eliminates vertical displacement of the indicator light relative to the lamp holder.

[0051] In this embodiment, the opening 314 of the lamp holder 31 is arranged downward, which can prevent dust and water, making the combination switch 100 safer to use.

[0052] Specifically, the lamp holder 31 includes a first shell 311, a second shell 312, and a stopper 313. The first shell 311 and the second shell 312 are both square half-shells. Each of the first shell 311 and the second shell 312 has a central hole through which the rotating shaft 50 passes. The side surfaces of the first shell 311 and the side surfaces of the second shell 312 (on the same side) each have a half-opening that forms the opening 314. When assembled, the two half-openings form the opening 314. The first shell 311 and the second shell 312 form the overall external structure of the lamp holder 31. Through holes are provided at the four corners of the first shell 311 and the second shell 312. These four corners are connected and secured to the mounting base 10 and the switch body 40 by four bolts. The first shell 311 is positioned on one side of the mounting base 10, while the second shell 312 is positioned on the other side of the switch body 40.

[0053] The second shell 312 is provided with a conductive unit mounting portion and a limit block mounting portion for mounting the conductive unit 32 and the limit block 313, respectively. The limit block mounting portion is located at the opening 314, and the limit block 313 is provided at the opening 314 to prevent the conductive unit 32 from falling off the second shell 312. The limit block 313 is a T-shaped structure fixing module. The limit block 313 and the second shell 312 are fixed by bolts installed in the middle of the module. At the same time, the portion of the limit block 313 extending in three directions can effectively fix the conductive unit 32 on the second shell 312, eliminating the vertical displacement of the conductive unit 32 relative to the second shell 312, and cooperating with the screw 322 to fix the bolt, the overall structure of the conductive unit 32 is fixed.

[0054] The conductive unit 32 is installed in the lamp holder 31 and is used to electrically connect the indicator light unit 33 installed on the lamp holder 31 to the external circuit system. Figure 1 and Figure 2 As shown, the conductive unit 32 includes two conductors 321, two screws 322, and two clips 323. The number of conductors in this embodiment is two because a single-open switch requires two contacts, and the two contacts must not touch each other. The on-off control is achieved through the switch contact. A single contact is unusable and cannot be connected to the circuit.

[0055] Specifically, the two conductors 321 are symmetrically arranged about the midline of the width of the opening 314. Each conductor 321 comprises a slot portion 3211, a connecting portion 3212, and a fixing portion 3213, which are sequentially connected. The slot portions 3211 are arranged to the sides of the fixing portion 3213 via the connecting portion 3212. The slot portions 3211 of the two conductors 321 are parallel, with the openings of the two slot portions 3211 facing inward and arranged opposite each other, allowing the two edges of the circuit board 331 of the indicator light unit 33 to be inserted and electrically connected. The connecting portion 3212 serves as a transitional connection between the slot portions 3211 and the fixing portion 3213. The fixing portion 3213 is perpendicular to the slot portions 3211 and is arranged toward the opening 314. A threaded hole is provided on the fixing portion 3213 and is connected to a screw 322 . A clip 323 is arranged between the fixing portion 3213 and the screw 322 . The clip 323 is used to cooperate with the fixing portion 3213 to clamp the wires of the external circuit system. The screw 322 is used to lock or loosen the clip 323 .

[0056] like Figure 2 and Figure 3 As shown, the indicator light unit 33 is inserted into the lamp holder 31 or pulled out from the lamp holder 31 through the opening 314. When the indicator light unit 33 is inserted into the lamp holder 31, the indicator light unit 33 is electrically connected to the external circuit system through the conductive unit 32, thereby indicating the status.

[0057] In this embodiment, the indicator light unit 33 includes a circuit board 331 and four LED patch lights 332 , a rectifier bridge 333 and an anti-interference diode 334 mounted on the circuit board 331 .

[0058] Specifically, the circuit board 331 is provided with an avoidance hole 3311 extending from the center to the edge, and the avoidance hole 3311 is used to avoid the rotating shaft 50 when installing or removing the indicator light unit 33. The circuit board 331 has wires 3312 connecting various electrical components, and copper sheets 3313 for electrically connecting to the slot portion 3211 of the conductor 321 are also provided on both sides of the edge of the circuit board 331. The four LED patch lights 332 are evenly distributed circumferentially around the center of the circuit board 331, for example, arranged radially, so that when the indicator light unit 33 is inserted into the lamp holder 31, the four LED patch lights 332 are evenly distributed around the rotating shaft 50, allowing light to be evenly transmitted from the transparent cover of the handle 20.

[0059] A rectifier bridge 333 is mounted on circuit board 331 and electrically connected to four LED SMD lights 332. It converts AC power from the external circuit system into DC power for the four LED SMD lights 332. An anti-interference diode 334 is mounted on circuit board 331 and connected in parallel with the rectifier bridge 333 to stabilize the voltage. It also resists interference from external signals, ensuring performance.

[0060] like Figure 3 As shown, when installing the indicator light unit 33, the indicator light unit 33 is inserted from the opening 314 of the lamp holder 31, so that the two side edges of the circuit board 331 slide along the slot portions 3211 of the two conductors 321 of the conductive unit 32, respectively, until the portion of the center of the circuit board 331 corresponding to the avoidance hole 3311 abuts against the rotating shaft 50 (contact, and the limiting function is achieved through the rotating shaft 50). At this time, it indicates that the indicator light unit 33 has been installed in place. After that, the wires of the external circuit system are connected to the fixed portions 3213 of the two conductors 321 to achieve conductivity and make the four LED patch lights 332 light up. The slot portion 3211 is a fixed rail, which fixes the indicator light unit 33 through the friction between it and the indicator light unit 33. The indicator light unit 33 itself is light in weight and has low inertia, and the rail friction is sufficient to achieve the fixing function.

[0061] When LED SMD lamp 332 or other electrical components (e.g., indicator light unit 33, anti-interference diode 334 within indicator light unit 33, and other components) malfunction and require repair, indicator light mechanism 30 can be quickly repaired by simply pulling out the internal indicator light unit 33 through opening 314 of lamp holder 31 and replacing the entire indicator light unit 33. Only indicator light unit 33 contains vulnerable electrical components within indicator light mechanism 30; lamp holder 31 and conductive unit 32 are fixed structural components and are not susceptible to aging or damage.

[0062] Example 2

[0063] like Figure 4 and Figure 5 As shown, this embodiment provides a combination switch 100, which is mounted on a control panel (not shown) and is used to control the gear position of the device to be controlled. The combination switch 100 includes a mounting base 10, a handle 20, the aforementioned indicator light mechanism 30, a switch body 40, and a rotating shaft 50.

[0064] Specifically, the mounting base 10 is mounted on the control panel, and the handle 20 is disposed on the mounting base 10 corresponding to the outside of the control panel. A portion of the handle 20 is a transparent cover through which the indicator light is transmitted. The handle 20 is used to drive the rotating shaft 50 to rotate or move. The handle 20 can be pushed in, and rotation is used to switch the state, while pushing in is used to confirm the state. The indicator light mechanism 30 and the switch body 40 are disposed corresponding to the inside of the control panel. The indicator light mechanism 30 is connected to the mounting base 10, and the switch body 40 is connected to the indicator light mechanism 30. The rotating shaft 50 is disposed through the indicator light mechanism 30 and the switch body 40 and is connected to the handle 20 at one end. The indicator light mechanism 30 is used to indicate the state, and the switch body 40 is used to achieve gear switching driven by the rotation of the rotating shaft 50 and to achieve gear locking or unlocking driven by the movement of the rotating shaft 50. The axial movement is used to achieve gear locking or unlocking. The rotation function is gear switching, which conflicts with gear locking and cannot be achieved simultaneously through axial movement or rotation alone. The mounting base 10 is mounted on the control panel, the handle 20 side is the outside of the control panel, the indicator light mechanism 30 and the switch body 40 side are the inside of the control panel, and the switch as a whole is in a vertical structure with the mounting panel.

[0065] The combination switch 100 provided in this embodiment has an indicator light mechanism 30 including a lamp holder 31, a conductive unit 32 and an indicator light unit 33. An opening 314 is provided on the side of the lamp holder 31, the conductive unit 32 is installed in the lamp holder 31, and the indicator light unit 33 is designed as an independent replaceable module. The indicator light unit 33 includes a circuit board 331 and a plurality of LED patch lights 332 installed on the circuit board. The indicator light unit 33 can be inserted into or pulled out of the lamp holder 31 through the opening 314. Therefore, when installing or removing the indicator light unit 33 of the combination switch 100, there is no need to remove the handle 20. The installation or removal can be completed by simply inserting or pulling the indicator light unit 33 into or out of the opening 314 of the lamp holder 31, which greatly improves the convenience of the installation or removal operation.

[0066] This embodiment uses an indicator light unit 33 that is easy to disassemble and assemble, which can improve the convenience of bulb maintenance; this embodiment has an indicator light function; it also has an axial movement function. The switch shaft in this embodiment has both rotation and axial movement functions.

[0067] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention are intended to be covered by the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.

Claims

1. An indicator light mechanism (30), characterized in that: include: A lamp holder (31) having an opening (314) on a side thereof; A conductive unit (32) is provided in the lamp holder (31) and is electrically connected to an external circuit system; as well as The indicator light unit (33) is an independent replaceable unit, comprising a circuit board (331) and a status indicator light mounted on the circuit board (331); the indicator light unit (33) is inserted into the lamp holder (31) or pulled out from the lamp holder (31) through the opening (314); when the indicator light unit (33) is inserted into the lamp holder (31), the indicator light unit (33) is electrically connected to the external circuit system through the conductive unit (32), thereby providing status indication; a avoidance hole (3311) extending from the center to the edge is provided on the circuit board (331); the avoidance hole (3311) is used to avoid the rotating shaft (50) when installing or removing the indicator light unit (33); The conductive unit (32) has two symmetrically arranged conductive bodies (321), and each conductive body (321) includes a slot portion (3211), a connecting portion (3212), and a fixing portion (3213) connected in sequence; Copper sheets (3313) electrically connected to the slot portions (3211) are provided at both side edges of the circuit board (331); when the indicator light unit (33) is inserted into the lamp holder (31), the both side edges of the circuit board (331) slide along the slot portions (3211) of the two conductors (321), respectively; the slot portions (3211) of the two conductors (321) are parallel to each other, and the two slot portions (3211) are arranged opposite to each other with their openings facing inward; the fixing portion (3213) is perpendicular to the slot portions (3211) and is arranged in the lamp holder (31) toward the opening (314).

2. The indicator light mechanism (30) according to claim 1, characterized in that: The conductive unit (32) further comprises two screws (322) and two clips (323); a threaded hole is provided on the fixing portion (3213) for connecting the screws (322); and the clip (323) is arranged between the fixing portion (3213) and the screws (322).

3. The indicator light mechanism (30) according to claim 1, characterized in that: The indicator light unit (33) further comprises a rectifier bridge (333) mounted on the circuit board (331), the rectifier bridge (333) being electrically connected to the LED patch lamp (332), and an anti-interference diode (334) connected in parallel with the rectifier bridge (333) being mounted on the indicator light unit (33).

4. The indicator light mechanism (30) according to claim 1, characterized in that: The lamp holder (31) comprises a first shell (311) and a second shell (312); a half opening constituting the opening (314) is provided on the same side of the first shell (311) and the second shell (312); a limit block (313) is provided on the lamp holder (31), and the limit block (313) is arranged at the opening (314) to prevent the conductive unit (32) from falling off the second shell (312).

5. The indicator light mechanism (30) according to claim 4, characterized in that: The first shell (311) and the second shell (312) are both in the shape of square half shells, and a central hole for the rotating shaft (50) to pass through is provided on the first shell (311) and the second shell (312).

6. A combined switch (100), characterized in that: The invention comprises an indicator light mechanism (30), a mounting seat (10), a handle (20), a switch body (40) and the rotating shaft (50) according to any one of claims 1 to 5, wherein the indicator light mechanism (30) is arranged between the mounting seat (10) and the switch body (40), the rotating shaft (50) is passed through the indicator light mechanism (30) and the switch body (40) and one end is connected to the handle (20), and the handle (20) is arranged on the mounting seat (10) and is used to drive the rotating shaft (50) to rotate or move.

7. The combined switch (100) according to claim 6, characterized in that: The mounting seat (10) is mounted on a control panel, the handle (20) is arranged on the mounting seat (10) corresponding to the outer side of the control panel, and the indicator light mechanism (30) and the switch body (40) are arranged corresponding to the inner side of the control panel.

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