Indication unit and button switch
Technical Field
The invention relates to the technical field of push-button switches, in particular to an indicating unit and a push-button switch.
Background
In the prior art, the button switch is used as a common control element in electronic equipment, is widely applied to various electrical appliances, mechanical equipment and instruments and meters, is used for realizing the on and off control of a circuit, and indicates the working state of the button switch or the working state of an external circuit through a luminous element (such as an LED lamp bead). However, the conventional push button switch has drawbacks in design and application:
The luminous parts (such as the beads of the indicator lamp) of the traditional button switch are often connected with the circuit board by welding. Although this connection is stable, when the lamp bead type, type or maintenance is required to be changed, the whole button switch is usually required to be directly changed or the circuit board is required to be detached, so that the operation is complex and the cost is high.
Disclosure of Invention
First, the technical problem to be solved
In order to solve the above problems, the present invention provides an indication unit and a push button switch, which aims to solve the problem that the light emitting element and the circuit board of the conventional push button switch are not easy to be replaced or hot plugged.
(II) technical scheme
An indicating unit of the present invention includes:
The luminous body is arranged on the inner side of the luminous body,
The light transmission assembly is positioned above the luminous body and comprises a light transmission base, and the light transmission base is detachably arranged at the top of the luminous body;
the circuit board, be equipped with plug connecting piece on the circuit board, the luminous body with plug connecting piece coupling connection, just the circuit board has the control circuit that multiple electronic component formed to be used for controlling the break-make of luminous body.
In the invention, the circuit board is also provided with a transient inhibitor and a hot plug management chip, and the transient inhibitor and the hot plug management chip are used for protecting a control circuit in the circuit board and are both coupled and connected with the circuit board.
In the invention, the light-transmitting base is in threaded connection with the luminous body, the luminous body comprises a luminous piece and a bracket, and the light-transmitting base is arranged on the luminous piece;
the bottom of the luminous piece is also provided with a pin, the pin comprises a plug-in part and a bent travel part, the travel part is used for providing a deformation path for the up-and-down motion of the luminous piece, and the plug-in part is used for being inserted into the plug-in connector.
The other button switch comprises a shell body, a cover cap arranged on the shell body and the indicating unit according to the technical scheme, wherein a cavity for accommodating the light-transmitting component and the luminous body is arranged on the shell body, and an elastic piece is arranged between the light-transmitting base and the cavity and used for providing resetting force for the indicating unit;
The circuit board is clamped in the shell body, a switch piece is further arranged on the circuit board, a key cap is further arranged between the luminous piece and the switch piece, the switch piece is connected with the circuit board in a coupling mode, and downward acting force is applied to the luminous piece to drive the key cap to move downwards and press the switch piece to trigger the control circuit;
The key cap is provided with a yielding groove matched with the luminous piece to pass through, and the pin passes through the yielding groove and is connected with the plug-in connecting piece;
the luminous body further comprises a light-transmitting piece and a pressing part, and the light-transmitting piece and the pressing part are detachably arranged on the light-transmitting base.
The invention further comprises a stroke assembly, wherein the stroke assembly comprises a static ring body and a movable ring body, the static ring body is fixedly connected with the shell body, and the movable ring body is arranged on the luminous body.
In the invention, the outer side part of the light-transmitting base is provided with the convex ring, the pressing part is clamped on the light-transmitting base through the convex ring, the bottom of the light-transmitting piece is inwards bent to be provided with the limiting part, one end of the limiting part is clamped in the bottom of the convex ring, and the bottom of the pressing part is abutted with the limiting part.
In the invention, the key cap comprises a cap body and a flange part, wherein the cap body and the switch piece are of an integral structure or a detachable structure.
In the invention, the bottom of the cap body is provided with the limit groove, at least three bulges are arranged in the limit groove, the bulges are positioned on the same horizontal plane to form a limit area, and the bulges apply horizontal clamping force to the switch piece.
In the present invention, the protrusions are hemispherical or columnar structures.
(III) beneficial effects
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the plug connector is arranged, so that the quick and convenient connection between the luminous element and the circuit board is realized. When the luminous piece needs to be replaced, the whole button switch or the circuit board does not need to be disassembled, and the replacement can be completed only through simple plugging operation, so that the replacement rate and the maintenance efficiency are greatly improved.
The transient suppression piece (such as a transient suppression diode, a capacitor and the like) and the hot plug management chip are electrically connected to the circuit board, so that instant current and voltage generated in the plug process are effectively absorbed and suppressed, and damage to a circuit is prevented. Meanwhile, the hot plug management chip can also control the current rising rate, realize the functions of a breaker, power management, state reporting and the like, and further improve the working state and stability of the system.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a push button switch;
FIG. 2 is a schematic cross-sectional view of a push button switch;
FIG. 3 is a schematic view of the internal structure of the chamber;
FIG. 4 is a schematic view of the internal structure of the chamber (omitting the light-transmitting component);
FIG. 5 is a schematic perspective view of the housing body;
FIG. 6 is a schematic view of the internal structure of the push button switch;
FIG. 7 is a schematic diagram of a connection structure of the light-transmitting component;
FIG. 8 is a schematic cross-sectional view of a light-transmitting component;
FIG. 9 is a schematic perspective view (I) of a key cap;
Fig. 10 is a schematic perspective view of a key cap (ii).
10. The device comprises a shell body, 101, a cavity, 11, a cover cap, 12, a mounting ring, 20, a light transmission component, 21, a light transmission piece, 211, a limiting part, 22, a pressing part, 23, a light transmission base, 231, a convex ring, 30, a stroke component, 31, a static ring body, 32, a movable ring body, 33, an elastic piece, 34, a key cap, 341, a flange part, 342, a cap body, 343, a limiting groove, 344, a bulge, 345, a yielding groove, 35, a sealing piece, 40, a luminous body, 401, a luminous piece, 4011, a stroke part, 4012, a plug part, 402, a bracket, 41, a plug connecting piece, 50, a circuit board, 51, a transient limiting piece, 52, a hot plug management chip, 53 and a switch piece.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The indication unit and the button switch as shown in fig. 1-2 comprise a housing body 10, a luminous body 40 arranged in the housing body 10, a light-transmitting component 20 and a circuit board 50, wherein the circuit board 50 is vertically and longitudinally arranged in the housing body 10, and one end of the circuit board is clamped and limited with the bottom of the housing body 10. The conventional push-button switch lighting element 401 and the circuit board 50 are often connected by welding, and the lighting element 401 is a lamp bead of an indicator lamp. Once the lamp bead type, maintenance, etc. are required to be replaced, the whole push button switch is often required to be directly replaced or the circuit board 50 is required to be disassembled for replacement. A cover 11 is fitted to the upper portion of the housing body 10 by screw connection.
The circuit board 50 is electrically connected with a control circuit formed by various electronic components, such as a diode, a resistor, a couple and the like, and the control circuit is used for forming an effective loop in cooperation with the light emitting element 401 so as to light the light emitting element 401 to indicate the working state of the button switch or the working state of an external circuit.
Specifically, in order to achieve rapid assembly and replacement of the light emitting member 401, the push button switch of the present invention is further provided with a plug connector 41. In order to absorb and suppress the instantaneous current and voltage generated during the plugging process, and prevent the circuit from being damaged, a transient suppressor 51, such as a transient suppression diode, a capacitor, etc., is electrically connected to the circuit board 50. In particular, a hot plug management chip 52 is electrically connected to the circuit board 50, and includes a driving MOS design and a current detection resistor, so as to control the current rising rate, make a breaker, perform power management, and report status, etc., thereby improving the operation state of the system. These chips typically have an automatic recovery or lock-up protection mode, and timing circuitry to handle various conditions during the plugging process. The light emitting component 401 is electrically connected to the circuit board 50 through the plug connector 41, and the light emitting component 401 can be directly replaced after the cover 11 and the light emitting component can be directly removed through the hot plug management of the circuit by the cooperation time of the transient inhibitor 51 and the hot plug management chip 52, so that the replacement rate is greatly increased and the maintenance effect is improved.
The control structure of the push button switch will be described in detail with reference to fig. 2 to 6.
The button switch of the present invention further comprises a switch member 53 and a key cap 34, wherein the key cap 34 is disposed under the light emitting member 401, and when the light emitting member 401 moves downward, a downward force is applied to the key cap 34, so that the key cap 34 presses the switch member 53 downward to turn on or off the circuit. In order to achieve the above function, the switch 53 needs to be electrically connected to the circuit board 50, and the top of the switch 53 is connected to the keycap 34, including but not limited to sleeving the keycap 34 on the switch 53 or integrating the keycap 34 and the movable component of the switch 53 into an integral structure. In particular, in the present embodiment, the switching piece 53 may employ a contact switch, a micro switch, or the like.
Specifically, the key cap 34 includes a cap body 342 and a flange portion 341, in this embodiment, the bottom of the cap body 342 and the flange portion 341 are provided with a limiting slot 343 for accommodating the movable portion of the switch member 53, that is, the key cap 34 is sleeved on the switch member 53 through the limiting slot 343, and when a downward force is applied to the key cap 34, the switch member 53 can be triggered to implement corresponding action logic.
The key cap 34 is further provided with a relief groove 345, so that the pins of the light emitting element 401 and the body thereof can pass through conveniently, namely, the connecting element of the light emitting element 401 arranged above the key cap 34 passes through the relief groove 345 and is connected with the plug connecting element 41. In particular, the relief groove 345 is provided at a part of the cap 342 and at another part of the flange 341.
In order to realize the stroke control or the change and the maintenance of the switch state of the push-button switch, the light emitting part 401 is further sleeved with the fixed ring body 31 and the movable ring body 32, that is, the push-button switch realizes the on-off action of the push-button switch through the cooperation between the fixed ring body 31 and the movable ring body 32.
The indication unit of the push button switch is described in detail with reference to fig. 7 to 8.
In the present invention, the illuminant 40 is composed of an illuminant 401 and a bracket 402, the illuminant 401 is integrated with or adhered to the bracket 402, the bracket 402 is used for installing the movable ring body 32, and the stationary ring body 31 is clamped in the housing body 10. In particular, in order to increase the sealing effect of the push-button switch, a sealing member 35 is further sleeved on the light emitting member 401, one end of the sealing member 35 is sleeved on the bracket 402 of the light emitting member 401, and the bottom is abutted with the housing body 10. In order to form a sealing structure with the sealing member 35, a mounting ring 12 is further provided in the housing body 10, the mounting ring 12 is provided for the light emitting member 401 and the movable ring body 32 to move up and down, and the bottom of the sealing member 35 abuts against the top of the mounting ring 12. A catch is provided on the side of the bracket 402, by means of which the movable ring body 32 is fitted on the bracket 402.
In order to better enable the light emitting element 401 to move up and down, the bottom of the light emitting element 401 is further provided with a pin, and the pin comprises a plug-in connection portion 4012 and a stroke portion 4011 which is arranged in an S-shaped bending manner. In the present embodiment, the light emitting element 401 is operated up and down with the pressing, that is, the stroke portion 4011 realizes that the plug portion 4012 can be kept stationary even if the light emitting element 401 is operated up and down.
Specifically, the upper portion of the housing body 10 is provided with a cavity 101 for accommodating the light-transmitting component 20 and the light-emitting member 401, and the light-transmitting component 20 includes a light-transmitting base 23, in this embodiment, the light-transmitting base 23 is assembled with the light-emitting member 401 through threaded connection, that is, a connecting thread is provided on an outer sidewall of the light-emitting member 401, and the light-transmitting base 23 is assembled with the light-emitting body 40 through internal threads. The light-transmitting base 23 has a butterfly structure, and may be made of glass, polymethyl methacrylate, polycarbonate, polystyrene, etc., i.e., it is required to have a good light-transmitting effect. In order to make the push-button switch have a better resetting effect, an elastic piece 33 with a conical structure is further arranged between the light emitting piece 401 and the light transmitting base 23, the top of the elastic piece 33 is abutted with the bottom of the light transmitting base 23, and the bottom of the elastic piece is abutted with the bottom of the cavity 101. In this embodiment, the elastic member 33 may be a compression spring with a tapered structure, a device with a certain restoring effect such as rubber or sponge, or the like.
The light-transmitting assembly 20 further comprises a light-transmitting member 21 and a pressing part 22, wherein the pressing part 22 of the convex ring 231 is arranged on the side part of the light-transmitting base 23, the light-transmitting base 23 is semi-surrounded and sleeved with the pressing part 22, namely, a groove for adapting to the convex ring 231 is further arranged on the pressing base, the bottom of the light-transmitting member 21 is provided with a limiting part 211 which is bent inwards, and the limiting part 211 is clamped into the bottom of the convex ring 231 for limiting and mounting, and is in butt joint limiting through the bottom of the pressing part 22. The surface of the pressing portion 22 may be polished for increasing its flatness or smoothness, and in particular, a non-slip pattern may be added to the surface thereof for increasing the friction of the surface thereof.
When the light emitting device is used, if the light emitting body 40 needs to be replaced, the light transmitting component 20 can be detached only after the cover 11 is detached through threaded connection, so that the light emitting component 401 is pulled out for replacement, and when the light emitting component 401 is reinstalled, the light transmitting component 20 and the cover 11 only need to be installed after the light emitting component 401 is inserted into the plug connector.
Example 2
As shown in fig. 9 to 10, the difference from embodiment 1 is that three semicircular protrusions 344 are further provided in the limit groove 343 of the key cap 34, and the equal distance travel limit regions between the protrusions 344 are used to lock the upper portion of the switching member 53, thereby preventing the loosening between the key cap 34 and the switching member 53 from affecting the switching effect.
In particular, the protrusion 344 may have a hemispherical structure or a columnar structure.
The above examples are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Various modifications and improvements of the technical scheme of the present invention will fall within the protection scope of the present invention without departing from the design concept of the present invention, and the technical content of the present invention is fully described in the claims.