Disclosure of Invention
Embodiments of the present disclosure provide an electrical device and an actuator for a tact switch, which aim to address one or more of the above-mentioned problems, as well as other potential problems.
According to a first aspect of the present disclosure, an electrical device is provided. The electrical apparatus includes: a housing; a tact switch that can be pressed to make an electrical circuit in the electrical apparatus and released to break the electrical circuit; and an actuator mounted in the housing and movable between a first position at which the actuator presses the tact switch so that the tact switch is in an on state and a second position at which the actuator is separated from the tact switch so that the tact switch is in an off state to selectively arrange the tact switch in the on state or the off state.
According to the electrical equipment of the embodiment of the disclosure, the state of the tact switch can be conveniently selected via the actuator, and the application convenience and the user friendliness of the electrical equipment are improved.
In some embodiments, the housing may include an opening penetrating in the pressing direction, wherein the actuator is rotatably mounted in the opening in an embedded manner.
In some embodiments, the actuator is rotatably arranged relative to the housing, wherein the actuator is at different circumferential positions relative to the housing in the first position and the second position.
In some embodiments, the actuator may include a trigger end that can be rotated to change a position of the actuator and an actuating end opposite the trigger end, the actuating end adapted to depress the tact switch.
In some embodiments, the trigger end may further comprise a dial portion protruding radially outward from the body of the trigger end, the dial portion being adapted to be rotated to cause the actuator to move between the first position and the second position.
In some embodiments, the actuator may be mounted eccentrically with respect to a mounting axis of the electrical device.
In some embodiments, the toggle may protrude more towards the mounting axis in the first position than in the second position.
In some embodiments, the electrical apparatus may further comprise a mounting plate adapted to be fixed to a fixed body, the housing being rotatably mounted relative to the mounting plate, wherein the mounting plate comprises a push portion such that, during the process of the housing being rotatably mounted to the mounting plate, the toggle portion is pushed via the push portion to move the actuator from the first position to the second position.
In some embodiments, the mounting plate may include a protruding rib on a side facing the housing, the protruding rib being capable of pressing the actuator to maintain the tact switch in an on state in a state where the housing is attached to the mounting plate.
In some embodiments, the initiation end may further comprise a tool slot.
In some embodiments, the actuation end may comprise a positioning arm projecting radially outwardly from the body of the initiation end, and the housing comprises a circumferential channel providing a path of movement for the positioning arm.
In some embodiments, the circumferential channel may include first and second detents adapted to position the positioning arm at different heights, wherein the positions of the first and second detents correspond to the first and second positions of the actuator, respectively.
In some embodiments, the circumferential channel may be formed on a barrel extending protrudingly from the housing, the barrel including an inclined wall providing a movement track of the positioning arm.
In some embodiments, the actuator may include a pawl to removably mount the actuator into the housing.
In some embodiments, the actuator may be a one-piece molding.
In some embodiments, the electrical device may comprise a smoke alarm.
According to a first aspect of the present disclosure, there is provided an actuator for a tact switch that can be pressed to close an electrical circuit in the electrical device and released to open the electrical circuit. The actuator includes: a cylindrical body including a first end and an opposite second end; a toggle portion projecting radially outward from the body at the first end, the actuator being rotated by rotating the toggle portion between a first position in which the body is adapted to contact the tact switch such that the tact switch is in an on state and a second position in which the body is adapted to be spaced from the tact switch such that the tact switch is in an off state; and a positioning arm protruding radially outward from the body of the initiation end at the second end, the positioning arm providing positioning in the actuator pressing direction.
Detailed Description
Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The term "including" and variations thereof as used herein is intended to be open-ended, i.e., "including but not limited to". Unless specifically stated otherwise, the term "or" means "and/or". The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "upper," "lower," "front," "rear," and the like, refer to placement or positional relationships based on the orientation or positional relationship shown in the drawings, merely for convenience in describing the principles of the disclosure, and do not indicate or imply that the referenced elements must be in a particular orientation, constructed or operated in a particular orientation, and therefore should not be taken as limiting the disclosure.
The operating principle of an electrical device comprising a tact switch according to the present disclosure is explained below with a smoke alarm as an example of the electrical device. It is worth noting that this is merely exemplary; the inventive concept according to the present disclosure may be applied to any other electrical device including a tact switch.
Fig. 1-3 each show a perspective schematic view of a smoke alarm 100 according to an embodiment of the present disclosure. As shown in fig. 1-3, the smoke alarm 100 may include an apparatus body 50 within which may be housed a sensor, a power module and an alarm module. The apparatus body 50 may be mounted to a suitable location of a building, such as a ceiling, a wall, or a support pillar of the building, etc., through the mounting plate 20. The device body 50 may comprise a fixedly arranged housing 10, which housing 10 may for example be formed in the form of a plate and adapted to cover electrical devices within the device body 50.
As shown in fig. 3, a tact switch (not shown) may also be housed within the device body 50 of the smoke alarm 100. The actuator 40 may be mounted above the tact switch and may be capable of moving up and down relative to the tact switch. When the actuator 40 is moved downwardly to press the tact switch, the tact switch is pressed to complete the electrical circuit in the smoke alarm 100. When the actuator 40 moves upward to release the tact switch, the tact switch is released to open the electrical circuit.
As shown, the actuator 40 is installed in the housing 10 and is movable between a first position P1 where the actuator 40 presses the tact switch so that the tact switch is in an on state and a second position P2 where the actuator 40 is separated from the tact switch so that the tact switch is in an off state to selectively arrange the tact switch in the on state or the off state.
According to the smoke alarm 100 of the embodiment of the present disclosure, by the additionally provided actuator 40, it is possible to easily dispose the tact switch selectively in the on state or the off state by moving the position of the actuator 40 without requiring the user to always press the trigger switch with one hand. Thereby, the user's hands can be freed, which has a significant advantage in practice.
In some applications, the smoke alarm 100 may also be provided with a networking module 60. To connect the networking module 60, the tact switch needs to be in an on state, and for this reason, the user needs to keep pressing the tact switch and also needs to operate the networking module; this is inconvenient in practice. According to the smoke alarm 100 of the embodiment of the present disclosure, the user may selectively place the tact switch in the on state and then operate the networking module 60 to implement the network interconnection. After interconnection of the networking modules 60 is completed, the smoke alarm 100 may be mounted, for example, to a ceiling via the mounting plate 20.
In some embodiments, as shown in fig. 3, the housing 10 includes an opening therethrough in the pressing direction. The actuator 40 is rotatably mounted in the opening in an embedded manner. By the embedded mounting of the actuator 40, the actuator occupies only a small space and so the provision of the actuator does not affect the operation of the other components of the smoke alarm 100.
In some embodiments, as shown in fig. 3, the actuator 40 is rotatably arranged relative to the housing 10. In the first position P1 and the second position P2, the actuator 40 is at different circumferential positions relative to the housing 10. With this configuration, the user need only rotate the actuator 40 to effect state control of the trigger switch.
Fig. 4 shows structural details of the mounting plate 20 according to an embodiment of the disclosure. As shown in fig. 4, the mounting plate 20 includes a protruding rib 24 on a side facing the housing 10, and the protruding rib 24 can press the actuator 40 to keep the tact switch in an on state in a state where the housing 10 is attached to the mounting plate 20.
The mounting plate 20 may be mounted with the apparatus body 50 in a variety of ways. In some embodiments, the device body 50 is rotatably mounted relative to the mounting plate 20. This way is simple to operate. In some embodiments, the mounting plate 20 may include a push portion 22. During the process of the apparatus body 50 being rotatably mounted to the mounting plate 20, the actuator 40 is pushed (e.g., the toggle 42 may be pushed) via the push portion 22 to move the actuator 40 from the first position P1 to the second position P2. Thus, by a simple mounting manner, regardless of the initial state of the actuator 40, the actuator 40 can always be switched to the second position P2 in the course of the apparatus body 50 being rotatably mounted to the mounting plate 20. In the state where the second position P2 corresponds to the OFF position of the tact switch, the tact switch is kept in the OFF state when the apparatus body 50 is detached from the mounting plate 20, which can make the apparatus in the apparatus body 50 always kept in the power-OFF state, improving safety.
Fig. 5 and 6 show structural details of an actuator according to an embodiment of the present disclosure. As shown in fig. 5 and 6, the actuator 40 includes a trigger end that can be rotated to change the position of the actuator 40 and an actuating end opposite the trigger end that is adapted to depress the tact switch. The state switching of the tact switch can be easily realized by operating the trigger terminal of the actuator 40 in a state where the electronic equipment in the equipment main body 50 in the smoke alarm is mounted.
In some embodiments, the initiation end further includes a tool slot 48. The user may conveniently rotate the initiation end using a tool, such as a screwdriver, to engage the tool slot 48. It should be noted that although in the illustrated embodiment, the tool pocket 48 is shown as being cruciform, any other suitable shape may be used with the present disclosure.
In some embodiments, the trigger end may further comprise a dial 42 protruding radially outward from the body 45 of the trigger end, the actuator 40 being moved between the first position P1 and the second position P2 by rotating the dial 42. In the case where the dial 42 is provided, this has a significant advantage in the case where the apparatus body 50 is mounted with the mounting plate 20, in addition to facilitating the rotation. The toggle portion may be disposed in a position suitable for interaction with the mounting plate 20. Thus, regardless of the initial state of the toggle part 42, the toggle part can be maintained in a predetermined orientation position by its interaction with the mounting plate 20 during the mounting of the apparatus body 50 with the mounting plate 20, and the tact switch is always maintained in a predetermined ON/OFF state after the apparatus body 50 is fixed to the mounting plate 20.
In some embodiments, the actuator 40 is mounted eccentrically with respect to the mounting axis of the smoke alarm 100. In this case, during the process of mounting the apparatus body 50 with the mounting plate 20, the position adjustment of the dial portion can be achieved by striking the dial portion, and thus the tact switch is always maintained in a predetermined ON/OFF state after the apparatus body 50 is fixed to the mounting plate 20.
In some embodiments, the toggle 42 projects more toward the mounting axis in the first position P1 than in the second position P2. Thus, the toggle part 42 protrudes more towards the mounting axis in the first position P1 than in the second position P2 with respect to the mounting axis. Thus, during the installation of the apparatus body 50 to the mounting plate 20, the toggle part 42 at the second position P2 is located, for example, on the rotation path of the push part 22 and is pushed by the push part 22, and on the other hand, the toggle part 42 at the first position P1 is located, for example, outside the rotation path of the push part 22, and does not interfere with the relative rotation of the apparatus body 50 and the mounting plate 20.
As shown in fig. 5 and 6, the actuating end of the actuator 40 comprises a positioning arm 44 that projects radially outwardly from a body 45 of the initiation end. The actuator may be held in a predetermined circumferential position by the interaction of the positioning arms 44 with the housing 10.
Correspondingly, the housing 10 may include a circumferential channel that provides a path of movement for the positioning arm 44. The circumferential channel may be formed in various forms. In the illustrated embodiment, the housing 10 may include a cylinder 65 that extends protrudingly from the housing face in the pressing direction. The circumferential channel may include a first detent 64 and a second detent 66 adapted to position the positioning arm 44 at different heights. The positions of the first click portion and the second click portion correspond to the first position P1 and the second position P2 of the actuator 40, respectively. The first and second positioning portions 64 and 66 may be formed in the shape of a recess, and the positioning arm 44 may be formed in the shape of a recess adapted to engage with the first and second positioning portions 64 and 66, respectively.
In the illustrated embodiment, the cylinder 65 includes an angled wall 62 that provides a path for movement of the positioning arm 44. Thereby, a height difference may be provided by the inclined wall, which height difference may for example correspond to a movement stroke for triggering a tact switch action. In some embodiments, the sloped walls may be formed in the form of a smooth transition. In other embodiments, the sloped wall may be formed in the form of a plurality of steps.
In the illustrated embodiment, the actuator 40 may be a one-piece molded part. The actuating end of the actuator 40 may be implemented as a large diameter portion and the firing end of the actuator may be implemented as a small diameter portion. Thereby facilitating the positioning of the actuator in the housing 10. In some embodiments, the actuator 40 may include a plurality of jaws 46, and the actuator 40 may be detachably mounted to the housing 10 by elastic deformation of the jaws.
In some embodiments, the device body 50 may be bi-directionally mounted with the mounting plate 20. In some embodiments, the device body 50 may be mounted to the mounting plate 20 in a clockwise direction or in a counterclockwise direction. In this case, the actuator 40 may include a pair of positioning arms 44 arranged rotationally symmetrically. The housing 10 may comprise a radially symmetrical corresponding structure adapted to interact with the actuator 40.
The operating principle of the actuator according to the embodiment of the present disclosure is explained below with reference to fig. 7 to 10. As shown in fig. 7 and 9, in a state where the apparatus body 50 is not mounted to the mounting plate, the user may operate the tool slot 50 by a tool such as a screwdriver to rotate the actuator 40 so that the actuator 40 is in a predetermined orientation. Alternatively, the user may rotate the actuator 40 by operating the dial 42 so that the actuator 40 is in a predetermined orientation.
In the state shown in fig. 7 and 8, the actuator 40 is shown in the OFF state. As shown in fig. 7 and 8, when the dial 42 is at the second position P2, the positioning arm 44 is located at the second detent portion 66 of the circumferential channel, and at the second detent portion 66, the positioning arm 44 is located at a low position with respect to the cylindrical body 65 of the housing, so that the tact switch below the actuator cannot be pressed, and the tact switch is maintained in the OFF state.
In the state shown in fig. 9 and 10, the actuator 40 is shown in the ON state. As shown in fig. 9 and 10, when the toggle part 42 is at the first position P1, the positioning arm 44 is at the first detent portion 64 of the circumferential channel, and at the first detent portion 64, the positioning arm 44 is at a high position with respect to the cylinder 65 of the housing, thereby pressing the tact switch located below the actuator, and the tact switch is thereby kept pressed to be in an ON state.
On the one hand, when the user needs to mount the apparatus main body 50 to the mount plate 20, it is assumed that at this time the dial portion 42 is initially in the second position P2 and the tact switch remains released to be in the OFF state, as shown in fig. 7 and 8. When the apparatus body 50 is rotated relative to the mounting plate 20, the toggle part 42 is at the second position P2 and out of the path of rotation of the push part 22, with relative rotation therebetween, whereby the toggle part 42 is not affected by the mounting action. After the mounting plate 20 and the apparatus body 50 are mounted in place, the tact switch is held in the ON state by pressing the actuation end via the protruding rib 24 ON the mounting plate. When the user needs to detach the apparatus body 50 from the mounting plate 20, the actuator is held at the second position P2, and therefore the apparatus body 50 is not electrified.
ON the other hand, when the user needs to mount the apparatus main body 50 to the mount plate 20, it is assumed that at this time the dial 42 is initially in the first position P1 and the tact switch remains pressed to be in the ON state, as shown in fig. 9 and 10. When the apparatus body 50 rotates relative to the mount plate 20, the push portion 22 of the mount plate 20 pushes the toggle 42 to move the toggle 42 from the first position P1 to the second position P2, accompanying the relative rotation therebetween, whereby the tact switch is switched to the OFF state. After the mounting plate 20 and the apparatus body 50 are mounted in place, the tact switch is held in the ON state by pressing the actuating end via the protruding rib 24 ON the mounting plate. In the event that the user desires to remove the apparatus body 50 from the mounting plate 20, the actuator remains in the second position P2, thus ensuring that the apparatus body 50 is not electrically charged.
According to a second aspect of the present disclosure, there is also provided an actuator 40 for a tact switch. The tact switch can be pressed to complete an electrical circuit in the smoke alarm 100 and released to break the electrical circuit, the actuator comprising: a cylindrical body 45 including a first end and an opposite second end; a toggle 42 projecting radially outwardly from the body 45 at a first end, the body 45 adapted to contact the tact switch to place the tact switch in an on state by rotating the toggle 42 to cause the actuator 40 to rotate between a first position P1 at a first position P1 and a second position P2 at a second position P2 at the body 45 adapted to be a distance from the tact switch to place the tact switch in an off state; and a positioning arm 44 protruding radially outward from the body 45 of the initiation end at the second end, the positioning arm 44 providing positioning in the pressing direction of the actuator 40.
It is worth mentioning that the above description is merely exemplary to facilitate understanding of the inventive concepts according to the present disclosure. In other embodiments, the above arrangement may be reversed. For example, in other embodiments, in the first position P1, the tact switch may correspond to an OFF position, and in the second position P2, the tact switch may correspond to an ON position; only the height difference at the inclined wall 62 needs to be adjusted adaptively.
According to the actuator of the embodiment of the present disclosure, the state control of the tact switch is realized by a simple structure in a narrow space.
Further, while operations are depicted in a particular order, this should be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limitations on the scope of the disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single implementation. Conversely, various features that are described in the context of a single implementation can also be implemented in multiple implementations separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.