Combined switch and indicating lamp mechanism thereof

Abstract

The invention relates to the technical field of change-over switches, and discloses a combined switch and an indicating lamp mechanism thereof, the combined switch comprises a lamp holder, a conductive unit and an indicating lamp unit, the indicating lamp unit is an independent replaceable unit and comprises a circuit board and a state indicating lamp installed on the circuit board, and the indicating lamp unit is inserted into the lamp holder or pulled out of the lamp holder through an opening. When the indicating lamp unit is inserted into the lamp holder, the indicating lamp unit is electrically connected with an external circuit system through the conductive unit, so that state indication is performed; the combined switch comprises an indicating lamp mechanism, a mounting seat, a handle, a switch body and a rotating shaft. When the indicating lamp is mounted and dismounted, the handle does not need to be dismounted, mounting and dismounting can be completed only by inserting in or pulling out the indicating lamp unit from the opening of the lamp holder, and the convenience of mounting and dismounting operation is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of change-over switches, and particularly to a combined switch and an indicator mechanism thereof. Background Art

[0002] A multi-position change-over switch is a switch that can connect two or more power sources or loads for conversion and control the operation of various devices. It is widely used in daily life and industrial production, such as power stations, rail change stations, high-speed rail locomotives, subway locomotives, ships, etc. The multi-position change-over switch includes multiple contact layers and a rotating shaft connecting each contact layer. By rotating the handle to drive the rotation of the rotating shaft, the switching of the corresponding position can be realized. When installing the multi-position change-over switch, the handle is installed on the outside of the control panel for the operator to rotate, and other parts are encapsulated inside the control panel.

[0003] In order to facilitate the operation of the multi-position change-over switch, an indicator light for feedback control status is usually installed on or around the control panel of the multi-position change-over switch. Although this solution solves the problem of status feedback, since it requires additional space on the control panel, it causes an increase in the space occupied by the control panel or the mounting plate, which is bound to cause an increase in the mounting plate and a large amount of material waste.

[0004] Currently, in order to reduce the space occupied on the control panel, the indicator mechanism and the switch body are integrated. However, when installing or disassembling the indicator light, the handle needs to be removed first, and then a special tool is used to screw the lamp bead on or off. Both installation and disassembly are very inconvenient. Summary of the Invention

[0005] The main object of the present invention is to overcome the defects in the prior art, and thus provide an indicator mechanism, which has an independent indicator unit and can directly install or remove the indicator unit, facilitating use.

[0006] Another object of the present invention is to overcome the defects in the prior art, and thus provide a combined switch, which includes an indicator mechanism and improves the convenience of installation or disassembly operations.

[0007] To achieve the above object, the present invention provides the following technical solutions: An indicator mechanism includes: a lamp holder with an opening on the side; a conductive unit disposed inside the lamp holder and electrically connected to an external circuit system; and an indicator unit, which is an independent and replaceable unit, including a circuit board and a status indicator installed on the circuit board. The indicator unit is inserted into or pulled out of the lamp holder through the opening. When the indicator unit is inserted into the lamp holder, the indicator unit is electrically connected to the external circuit system through the conductive unit, thereby performing status indication.

[0008] As an implementable manner, the conductive unit has two conductors arranged symmetrically, and each conductor includes a slot part, a connecting part, and a fixing part connected in sequence.

[0009] As an implementable manner, copper sheets electrically connected to the slot parts are provided at the two side edges of the circuit board. When the indicator light unit is inserted into the lamp socket, the two side edges of the circuit board slide along the slot parts of the two conductors respectively.

[0010] As an implementable manner, the conductive unit further includes two screws and two clip pieces. Threaded holes are provided on the fixing part for connecting the screws, and the clip pieces are arranged between the fixing part and the screws.

[0011] As an implementable manner, the slot parts of the two conductors are parallel to each other, and the openings of the two slot parts are arranged oppositely facing inwards.

[0012] As an implementable manner, the fixing part is perpendicular to the slot part and is arranged in the lamp socket towards the opening.

[0013] As an implementable manner, the two conductors are symmetrically arranged with respect to the width center line of the opening.

[0014] As an implementable manner, the status indicator light is an LED patch lamp.

[0015] As an implementable manner, four LED patch lamps are arranged circumferentially and evenly around the center of the circuit board.

[0016] 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.

[0017] As an implementable manner, an anti-interference diode connected in parallel with the rectifier bridge is mounted on the indicator light unit.

[0018] As an implementable manner, the indicator light unit is provided with an avoidance hole extending from the center to the edge.

[0019] As an implementable manner, the lamp socket includes a first housing and a second housing, and semi-openings forming the opening are provided on the same side surface of the first housing and the second housing.

[0020] As an implementable manner, a limiting block is provided on the lamp socket, and the limiting block is arranged at the opening for preventing the conductive unit from falling off the second housing.

[0021] As an implementable manner, the opening is arranged downward to prevent dust and water.

[0022] As an implementable manner, both the first housing and the second housing are in the shape of square semi-housings, and central holes for the rotation shaft to pass through are provided on both the first housing and the second housing.

[0023] As an implementable manner, through holes are provided at the four corners of both the first housing and the second housing.

[0024] A combined switch includes the above-mentioned indicator mechanism.

[0025] As an implementable manner, the combined switch further includes a mounting base, a handle, a switch body, and a rotation shaft. The indicator mechanism is arranged between the mounting base and the switch body. The rotation shaft is arranged through the indicator mechanism and the switch body and is connected to the handle at one end. The handle is arranged on the mounting base and is used to drive the rotation shaft to rotate or move.

[0026] As an implementable manner, a part of the handle is a transparent cover for the light of the indicator to penetrate.

[0027] As an implementable manner, the mounting base is mounted on the control panel. The handle is arranged on the mounting base corresponding to the outside of the control panel, and the indicator mechanism and the switch body are arranged corresponding to the inside of the control panel.

[0028] As an implementable manner, the indicator mechanism is fixedly connected between the mounting base and the switch body by bolts.

[0029] Compared with the prior art, the combined switch and its indicator mechanism provided by the present invention have the following beneficial effects: The indicator mechanism provided by the present invention includes a lamp holder, a conductive unit, and an indicator unit. An opening is provided on the side of the lamp holder. The conductive unit is installed in the lamp holder. The indicator unit is designed as an independent and replaceable module, including a circuit board and a status indicator installed on the circuit board. The indicator unit can be inserted into or pulled out of the lamp holder through the opening. The combined switch includes the indicator mechanism. In the present invention, when installing and disassembling the indicator, there is no need to remove the handle. Just insert or pull out the indicator unit from the opening of the lamp holder to complete the installation and disassembly, which greatly improves the convenience of the installation and disassembly operations.

[0030] Further, the opening of the lamp holder can be arranged downward, which can prevent dust and water and make the use of the combined switch safer.

[0031] Further, the lamp holder adopts a split design, including a first housing and a second housing that are combined in half, which can make the assembly of the lamp holder and its internal parts more convenient.

[0032] Furthermore, the present invention is also provided with a limiting block to prevent the conductive unit from falling off.

[0033] Furthermore, an avoidance hole is formed on the circuit board for avoiding the rotating shaft and extending from the center to the edge. A plurality of LED patch lights are evenly distributed circumferentially around the center of the circuit board, enabling light to uniformly penetrate from the transparent housing of the handle. Description of the Drawings

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 Structural schematic diagram of the indicator light mechanism provided by the embodiment of the present invention; Figure 2 Exploded view of the indicator light mechanism provided by the embodiment of the present invention; Figure 3 Installation and disassembly schematic diagram of the indicator light unit of the indicator light mechanism provided by the embodiment of the present invention, where the arrow indicates the installation and disassembly directions; Figure 4 Structural schematic diagram of the combined switch provided by the embodiment of the present invention; Figure 5 Exploded view of the combined switch provided by the embodiment of the present invention.

[0036] Description of the Reference Numerals: 100, combined switch; 10, mounting base; 20, handle; 30, indicator light mechanism; 40, switch body; 50, rotating shaft; 31, lamp holder; 311, first housing; 312, second housing; 313, limiting block; 314, opening; 32, conductive unit; 321, conductor; 322, screw; 323, clip; 3211, slot part; 3212, connection part; 3213, fixing part; 33, indicator light unit; 331, circuit board; 332, LED patch light; 333, rectifier bridge; 334, anti-interference diode; 3311, avoidance hole; 3312, wire; 3313, copper sheet. Detailed Description of the Embodiments

[0037] The following will be further described in detail through specific embodiments.

[0038] Embodiment 1 As Figures 1 to 3 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 integrally in the shape of a square shell, and a central hole for the rotation shaft 50 to pass through is provided on the lamp holder 31. The lamp holder 31 adopts a split design, including a first shell 311 and a second shell 312 that are combined in half, which can make the assembly of the lamp holder 31 and its internal parts more convenient. An opening 314 is provided on the side of the lamp holder 31. The opening 314 is used for the conductive unit 32 to be powered on, and for the installation or disassembly of the indicator light unit 33.

[0039] The split design enables the lamp holder 31 to be assembled conveniently. Through the split design, the lamp holder 31 can directly fix the indicator light structure by means of assembly, reducing the manufacturing technical requirements of the lamp holder 31 for the lamp fixing mold, and eliminating the step of installing the indicator light structure at a dedicated fixing position. The split module eliminates the horizontal displacement of the indicator light relative to the lamp holder 31, and at the same time, the vertical displacement of the indicator light relative to the lamp holder is eliminated by cooperating with a fixture.

[0040] In this embodiment, the opening 314 of the lamp holder 31 is arranged downward, which can prevent dust and water, making the use of the combined switch 100 safer.

[0041] Specifically, the lamp holder 31 includes a first shell 311, a second shell 312, and a limit block 313. Both the first shell 311 and the second shell 312 are in the shape of a square half-shell. Central holes for the rotation shaft 50 to pass through are provided on both the first shell 311 and the second shell 312. Half-openings that form the opening 314 are provided on the sides (the same side) of the first shell 311 and the second shell 312. After assembly, 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, and they are connected and fixed together with the mounting seat 10 and the switch body 40 by four bolts provided at the four corners. Among them, the first shell 311 is arranged on one side of the mounting seat 10, and the second shell 312 is arranged on one side of the switch body 40.

[0042] The second shell 312 is provided with a conductive unit installation part and a limit block installation part to install the conductive unit 32 and the limit block 313 respectively. The limit block installation part is located at the opening 314, and the limit block 313 is arranged 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 a bolt installed in the middle of the module. At the same time, the parts extending in three directions of the limit block 313 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. Cooperating with the screw 322 to fix the bolt, the overall structure of the conductive unit 32 is fixed.

[0043] The conductive unit 32 is installed inside the lamp socket 31 and is used to electrically connect the indicator unit 33 installed on the lamp socket 31 to an external circuit system. As Figure 1 and Figure 2 shown, the conductive unit 32 includes two conductors 321, two screws 322, and two clip pieces 323. In this embodiment, the designed quantity is 2 because a single-pole switch requires two contacts, and the two contacts must not touch each other. The on / off control is achieved through the switch contact piece, and a single one is unavailable and cannot be connected to the circuit.

[0044] Specifically, the two conductors 321 are symmetrically arranged with respect to the width midline of the opening 314. Each conductor 321 includes a slot portion 3211, a connecting portion 3212, and a fixing portion 3213 that are connected in sequence. The slot portion 3211 is arranged on the side of the fixing portion 3213 through the connecting portion 3212. The slot portions 3211 of the two conductors 321 are parallel to each other, and the openings of the two slot portions 3211 face each other inward for the two side edges of the circuit board 331 of the indicator unit 33 to be inserted and electrically connected. The connecting portion 3212 is the part for transitional connection between the slot portion 3211 and the fixing portion 3213. The fixing portion 3213 is perpendicular to the slot portion 3211 and faces the opening 314. A threaded hole is formed in the fixing portion 3213 and is connected with a screw 322. The clip piece 323 is arranged between the fixing portion 3213 and the screw 322. The clip piece 323 is used to cooperate with the fixing portion 3213 to clamp the wire of the external circuit system, and the screw 322 is used to lock or loosen the clip piece 323.

[0045] As Figure 2 and Figure 3 shown, the indicator unit 33 is inserted into or pulled out of the lamp socket 31 through the opening 314. When the indicator unit 33 is inserted into the lamp socket 31, the indicator unit 33 is electrically connected to the external circuit system through the conductive unit 32, thereby performing status indication.

[0046] In this embodiment, the indicator unit 33 includes a circuit board 331, four LED patch lights 332, a rectifier bridge 333, and an anti-interference diode 334 installed on the circuit board 331.

[0047] Specifically, the circuit board 331 is provided with an avoidance hole 3311 extending from the center to the edge. The avoidance hole 3311 is used to avoid the rotating shaft 50 when installing or disassembling the indicator light unit 33. The circuit board 331 has wires 3312 connecting various electrical components. Copper sheets 3313 for electrically connecting with the slot portions 3211 of the conductors 321 are also provided at both side edges of the circuit board 331. Four LED patch lights 332 are evenly distributed circumferentially around the center of the circuit board 331, for example, arranged radially. In this way, when the indicator light unit 33 is inserted into the lamp socket 31, the four LED patch lights 332 are evenly distributed around the rotating shaft 50, enabling the light to evenly penetrate through the transparent housing of the handle 20.

[0048] The rectifier bridge 333 is installed on the circuit board 331 and electrically connected to the four LED patch lights 332. The rectifier bridge 333 is used to convert the alternating current accessed by the external circuit system into direct current for the four LED patch lights 332 to use. The anti-interference diode 334 is installed on the circuit board 331. The anti-interference diode 334 is connected in parallel with the rectifier bridge 333, playing a voltage stabilizing role, and the anti-interference diode 334 can resist the interference of external signals to ensure performance.

[0049] As Figure 3 shown, when installing the indicator light unit 33, insert the indicator light unit 33 into the opening 314 of the lamp socket 31, and slide the two side edges of the circuit board 331 along the slot portions 3211 of the two conductors 321 of the conductive unit 32 until the part of the avoidance hole 3311 corresponding to the center of the circuit board 331 abuts against the rotating shaft 50 (contacts, and the limiting function is realized through the rotating shaft 50). At this time, it means that the indicator light unit 33 is installed in place. Then, connect the wires of the external circuit system to the fixing portions 3213 of the two conductors 321, and conduction can be achieved to make the four LED patch lights 332 emit light. The slot portion 3211 is a fixed rail, and the indicator light unit 33 is fixed through the frictional force between it and the indicator light unit 33. The indicator light unit 33 itself is light in weight and has small inertia, and the rail frictional force is sufficient to achieve the fixing function.

[0050] When the LED patch lights 332 or other electrical components (for example, the indicator light unit 33, components such as the anti-interference diode 334 in the indicator light unit 33) fail and need to be repaired, since the indicator light unit 33 is an independent and replaceable module, directly pull out the internal indicator light unit 33 from the opening 314 of the lamp socket 31, and replacing the entire indicator light unit 33 can quickly complete the repair of the indicator light mechanism 30. Only the indicator light unit 33 in the indicator light mechanism 30 has vulnerable electrical components. The lamp socket 31 and the conductive unit 32 are both fixed structural parts and have no possibility of aging and damage.

[0051] Embodiment 2 As Figure 4 andFigure 5 As shown in Figure 5 , this embodiment provides a combined switch 100, which is installed on a control panel (not shown in the figure) and is used for gear control of devices to be controlled. The combined switch 100 includes a mounting base 10, a handle 20, the above-mentioned indicator mechanism 30, a switch body 40, and a rotating shaft 50.

[0052] Specifically, the mounting base 10 is installed on the control panel. The handle 20 is arranged on the mounting base 10 corresponding to the outside of the control panel. A part of the handle 20 is a transparent cover for the light of the indicator to penetrate. The handle 20 is used to drive the rotating shaft 50 to rotate or move. The handle 20 can be pushed in. Rotation is used to switch the state, and pushing in is used to confirm the state. The indicator mechanism 30 and the switch body 40 are arranged corresponding to the inside of the control panel. The indicator mechanism 30 is connected to the mounting base 10, and the switch body 40 is connected to the indicator mechanism 30. The rotating shaft 50 passes through the indicator mechanism 30 and the switch body 40 and is connected to the handle 20 at one end. The indicator mechanism 30 is used for state indication. The switch body 40 is used to realize gear switching under the drive of the rotation of the rotating shaft 50 and realize gear locking or unlocking under the drive of the axial movement of the rotating shaft 50. The movement is axial movement, and gear locking or unlocking is realized through axial movement. The function of rotation is gear switching, and this function conflicts with gear locking and cannot be realized separately by axial movement or rotation at the same time. The mounting base 10 is installed on the control panel. The side of the handle 20 is the outside of the control panel, and the sides of the indicator mechanism 30 and the switch body 40 are the inside of the control panel. The whole switch is perpendicular to the mounting panel.

[0053] For the combined switch 100 provided in this embodiment, since the indicator mechanism 30 includes a lamp holder 31, a conductive unit 32, and an indicator 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. The indicator unit 33 is designed as an independent and replaceable module. The indicator unit 33 includes a circuit board 331 and a plurality of LED chip lights 332 installed on the circuit board. The indicator unit 33 can be inserted into or pulled out of the lamp holder 31 through the opening 314. Therefore, when installing or disassembling the indicator unit 33 of the combined switch 100, it is not necessary to remove the handle 20. Just insert or pull out the indicator unit 33 through the opening 314 of the lamp holder 31 to complete the installation or disassembly, which greatly improves the convenience of installation or disassembly operations.

[0054] This embodiment uses an indicator unit 33 that is convenient for disassembly and assembly, which can improve the convenience of bulb maintenance; this embodiment has an indicator function; it also has an axial movement function. The switch rotating shaft in this embodiment has both rotation and axial movement functions at the same time.

[0055] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims described above.

Claims

1. An indicator mechanism (30), characterized in that, Comprising: A lamp holder (31) with an opening (314) on its side; A conductive unit (32) disposed within the lamp holder (31) and electrically connected to an external circuit system; and An indicator unit (33), which is an independent and replaceable unit, includes a circuit board (331) and status indicator lights mounted on the circuit board (331). The indicator unit (33) is inserted into or pulled out of the lamp holder (31) through the opening (314). When the indicator unit (33) is inserted into the lamp holder (31), the indicator unit (33) is electrically connected to the external circuit system through the conductive unit (32) for status indication.

2. The indicating lamp mechanism (30) according to claim 1, characterized in that, The conductive unit (32) has two symmetrically arranged conductors (321), and each conductor (321) includes a slot part (3211), a connecting part (3212), and a fixing part (3213) connected in sequence.

3. The indicating lamp mechanism (30) according to claim 2, characterized in that, Copper sheets (3313) electrically connected to the slot parts (3211) are provided at the two side edges of the circuit board (331). When the indicator unit (33) is inserted into the lamp holder (31), the two side edges of the circuit board (331) slide along the slot parts (3211) of the two conductors (321) respectively.

4. The indicating light mechanism (30) according to claim 2 or 3, characterized in that, The conductive unit (32) further includes two screws (322) and two clip pieces (323). Threaded holes are provided on the fixing part (3213) for connecting the screws (322), and the clip pieces (323) are arranged between the fixing part (3213) and the screws (322).

5. The indicating light mechanism (30) according to claim 2 or 3, characterized in that, The slot parts (3211) of the two conductors (321) are parallel, the openings of the two slot parts (3211) are arranged facing each other inward, and the fixing part (3213) is perpendicular to the slot part (3211) and is disposed within the lamp holder (31) facing the opening (314).

6. The indicating light mechanism (30) according to claim 2 or 3, characterized in that, The indicator unit (33) further includes a rectifier bridge (333) mounted on the circuit board (331). The rectifier bridge (333) is electrically connected to the LED patch lamp (332), and an anti-interference diode (334) parallel to the rectifier bridge (333) is mounted on the indicator unit (33).

7. The indicator mechanism (30) according to claim 1, characterized in that, The lamp holder (31) includes a first housing (311) and a second housing (312). Half-openings forming the opening (314) are provided on the same side of the first housing (311) and the second housing (312). A limiting block (313) is provided on the lamp holder (31) at the opening (314) for preventing the conductive unit (32) from falling off the second housing (312).

8. The indicating light mechanism (30) according to claim 7, characterized in that, Both the first housing (311) and the second housing (312) are in the shape of square half-housings, and central holes for a rotating shaft (50) to pass through are provided on both the first housing (311) and the second housing (312).

9. A combined switch (100), characterized in that, Comprising the indicating lamp mechanism (30), mounting base (10), handle (20), switch body (40) and rotating shaft (50) described in any one of claims 1-8, the indicating lamp mechanism (30) is disposed between the mounting base (10) and the switch body (40), the rotating shaft (50) is disposed through the indicating lamp mechanism (30) and the switch body (40) and one end thereof is connected to the handle (20), and the handle (20) is disposed on the mounting base (10) and is used for driving the rotating shaft (50) to rotate or move.

10. The combined switch (100) according to claim 9, characterized in that, The mounting base (10) is mounted on the control panel, the handle (20) is disposed on the mounting base (10) corresponding to the outside of the control panel, and the indicating lamp mechanism (30) and the switch body (40) are disposed corresponding to the inside of the control panel.

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