Switch Actuator Adapter

Abstract

The present invention relates to a switch actuator adapter. The switch assembly is used to convert a non-contact switch into a contact-triggered switch, so that the internal electrical state of the non-contact switch can be triggered by mechanical contact with an object or surface. The switch assembly can include an adapter body coupled to the non-contact switch and an actuating body coupled to the adapter body. The actuating body can move relative to the adapter body to selectively position an object supported by the actuating body within a sensing area of ​​the non-contact switch. The actuating body can be moved by an external object that contacts a portion of the actuating body.

Description

[0001] Cross reference to related patents

[0002] This application is based on U.S. patent application No. 17 / 210,203, entitled “Switch Actuator Adapter,” filed on March 23, 2021, claims priority, and is incorporated herein by reference in its entirety. Technical Field

[0003] The present invention relates to a switch actuator adapter. Background Art

[0004] Contact switches typically rely on a target (e.g., a moving surface) coming into contact with another part to provide the force and displacement required to cause the contact switch to change state. Non-contact switches typically change state based on the proximity of another part to the switch, without the need for mechanical contact. Summary of the invention

[0005] According to one aspect of the present disclosure, a switch assembly for detecting a system state is provided. The switch assembly includes an enclosed housing that surrounds a magnetic assembly. The magnetic assembly is configured to be selectively activated to move the switch assembly between a first state and a second state. The switch assembly further includes an adapter body fixed to the enclosed housing outside the enclosed housing and an actuating body movably supported by the adapter body, the actuating body supporting a target outside the enclosed housing. The target is at least one of a magnetic target or a ferrous target. The actuating body can move between a first orientation and a second orientation relative to the adapter body and the enclosed housing, with the target moving between a first position in which the target activates the magnetic assembly and a second position in which the target does not activate the magnetic assembly, respectively.

[0006] Some aspects provide an adapter system for a switch assembly to convert the switch assembly from a non-contact switch assembly to a contact switch assembly. The adapter system includes an adapter body, an actuating body, and a target, wherein the adapter body is configured to be fixed to the closed housing outside the closed housing of the switch assembly, the actuating body is connected to the adapter body and supported by the adapter body, and the target is connected to the actuating body and configured to be supported outside the closed housing via the adapter body through the actuating body. The actuating body can move between a first orientation and a second orientation relative to the adapter body to move the target between a first position and a second position, respectively, in which the target is oriented to activate the switch assembly from outside the closed housing, and in which the target is oriented to not activate the switch assembly.

[0007] Some aspects provide a method of converting a switch assembly from a non-contact switch assembly to a contact switch assembly to detect an event. The method includes securing an adapter body to an enclosed housing of the switch assembly outside the enclosed housing, an actuating body connected to the adapter body such that a target connected to the actuating body is supported by the adapter body and the actuating body outside the enclosed housing. The method also includes configuring the actuating body to move from a first orientation to a second orientation relative to the adapter body upon occurrence of the event, thereby moving the target from a first position to a second position, the target being configured to activate the switch assembly from outside the enclosed housing when oriented in at least one of the first or second positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of embodiments of the present invention:

[0009] Figure 1 is a schematic diagram of a switch assembly used to convert a non-contact switch to a contact switch.

[0010] Figure 2 is a perspective view of a switch assembly including a non-contact switch converted for use as a contact switch having a lever arm actuating body.

[0011] Figure 3 yes Figure 2 Exploded view of the switch assembly.

[0012] Figure 4 yes Figure 2 A cross-sectional view of a switch assembly, wherein the switch assembly is in a first state.

[0013] Figure 5 yes Figure 2 A cross-sectional view of a switch assembly wherein the switch assembly is in a second state.

[0014] Figure 6 is an exploded view of a switch assembly including a non-contact switch converted for use as a contact switch having a push button actuation body.

[0015] Figure 7 yes Figure 6 A cross-sectional view of a switch assembly, wherein the switch assembly is in a first state.

[0016] Figure 8 yes Figure 6 A cross-sectional view of a switch assembly wherein the switch assembly is in a second state.

[0017] Fig. 9 is an exploded view of a switch assembly including a non-contact switch having a square profile.

[0018] Fig.10 is a schematic diagram of a switch assembly including a plurality of non-contact switches.

[0019] Fig.11 is a schematic diagram of a switch assembly including a plurality of non-contact switches and a plurality of targets.

[0020] Fig.12 is a schematic diagram of a switch assembly including a plurality of contactless switches and a target configured to selectively activate one or more of the plurality of contactless switches. DETAILED DESCRIPTION

[0021] The following discussion is provided to enable those skilled in the art to make and use embodiments of the present invention. Various modifications to the illustrated embodiments will be apparent to those skilled in the art, and the general principles herein may be applied to other embodiments and applications without departing from embodiments of the present invention. Therefore, embodiments of the present invention are not intended to be limited to the illustrated embodiments, but to conform to the widest scope consistent with the principles and features disclosed herein. The following detailed description will be read with reference to the accompanying drawings, wherein the same elements in different drawings have the same reference numerals. The figures, which are not necessarily drawn to scale, depict selected embodiments and are not intended to limit the scope of embodiments of the present invention. Those skilled in the art will recognize that the examples provided herein have many useful alternatives and fall within the scope of embodiments of the present invention.

[0022] Before explaining any embodiment of the present invention in detail, it should be understood that the application of the present invention is not limited to the details of the construction and component arrangement set forth in the following description or shown in the accompanying drawings. The present invention can have other embodiments and can be practiced or executed in various ways. In addition, it should be understood that the wording and terminology used herein are for descriptive purposes and should not be considered restrictive. For example, "including", "comprising" or "having" and their variations used herein are intended to cover the items listed thereafter and their equivalents and additional items.

[0023] As used herein, unless otherwise specified or limited, the terms "mounted," "connected," "supported," "fixed," and "coupled" and variations thereof when referring to physical connections are used broadly to include direct and indirect mountings, connections, supports, and couplings. Further, unless otherwise specified or limited, "connected," "attached," or "coupled" are not limited to physical or mechanical connections, attachments, or couplings.

[0024] As described above, contact switches (e.g., limit switches) traditionally rely on contact with a target (e.g., a movable surface) to provide the force and displacement required to cause the contact switch to change state. Typically, conventional contact switches have an entry point through which a portion of the switch extends to change the state of the switch based on mechanical contact with another body external to the switch (e.g., a system body monitored by the switch). Therefore, in order to provide a sealed housing for a contact switch, a movable sealing device must typically be provided, which may degrade and fail over time.

[0025] In contrast, a contactless switch does not need to contact a target (e.g., a magnet or ferrous material) to cause the contactless switch to change state. Accordingly, a change in state of a system monitored by the contactless switch can cause a corresponding change in state of the contactless switch without requiring access to the switch's entry point. Thus, for example, a contactless switch may be particularly advantageous for an environment with hazardous gases that is preferably not exposed to electronic equipment or other potential spark points. However, since a contactless switch may rely on changes in a non-mechanical field to cause a change in state of the switch, the range of the contactless switch may sometimes be smaller. Similarly, the area in which a contactless switch can detect a change in state of a monitored system may sometimes be smaller.

[0026] In this light, it may be useful to provide improved switches and related systems and methods that can combine the advantages of contactless and contact switches, including in new devices and for retrofitting existing devices. As will be described herein, the present disclosure provides systems and methods for adapting a contactless switch to a mechanically triggered switch, such that the contactless switch can be triggered by mechanical contact with an external object or surface (i.e., the internal electrical state of the contactless switch can be changed).

[0027] In some embodiments, an adapter body may be provided that is configured to be fixed to the housing of the contactless switch. For example, the adapter body supporting the actuating body may be configured to be threadedly or otherwise mechanically attached to the housing of the contactless switch (e.g., tied thereto with a belt) without requiring any portion of the adapter body or the actuating body to enter a wall extending through the housing of the contactless switch. The actuating body, which may be formed as a lever, a button, or a mechanically movable interface according to other known types, may support a target that is configured to trigger the contactless switch based on the spatial orientation of the actuating body relative to the adapter body without entering the housing of the contactless switch. Thus, for example, mechanical contact or other physical interaction with the actuating body entirely outside the housing of the contactless switch may cause the target to move to trigger (or not trigger) the contactless switch.

[0028] Figure 1An example schematic diagram of a switch assembly 10 for detecting a system state according to some embodiments of the present disclosure is illustrated. In the illustrated embodiment, the switch assembly 10 includes a non-contact switch 12, an adapter body 14, and an actuation body 16. According to some embodiments, the actuation body 16 can be configured as a lever arm, button, latch, rod, link, roller, or other mechanical device that can move relative to the adapter body 14. According to some embodiments, the contact roller ( Figure 1 A contact surface (not shown) may be arranged on the actuation body 16 (eg, on one end of a lever arm or button) which may provide a useful contact surface with the system to be monitored.

[0029] Moreover, the actuating body 16 includes a target 18 configured to trigger the non-contact switch 12. In some embodiments, the target 18 can be at least one of a magnetic target or a ferrous target, but other configurations may also be possible. Generally, the switch assembly 10 can be configured to be selectively actuated between a first state and a second state (or other) based on the non-contact switch 12 sensing (or not sensing) a target 18 within a sensing region 20. In the illustrated example, the sensing region 20 is shown as having a generally circular profile. However, sensing regions of different configurations are possible, depending on the specific configuration of the non-contact switch 12.

[0030] In different embodiments, different specific configurations of the contactless switch 12 are possible, depending on the sensing and environmental constraints of a particular installation. For example, according to some embodiments, the contactless switch 12 can be a magnetic switch or other type of proximity sensor, or other known types of switches that can be triggered by a corresponding target without contact with an external body. The internal configuration of the contactless switch 12 relative to the system controlled by the switch 12 can also vary according to the needs of a particular installation. For example, according to some embodiments, the contactless switch 12 can include a circuit for a single-pole double-throw switch ("SPDT") (e.g., as shown in partial circuit 12d), a circuit for a double-pole double-throw ("DPDT") switch (e.g., as shown in partial circuit 12e), a circuit for a single-pole single-throw ("SPST") switch (e.g., as shown in partial circuits 12a, 12b), or a circuit for a double-pole single-throw ("DPST") switch (e.g., as shown in partial circuit 12c). In some cases, the contactless switch 12 can be configured as a "passive" switch. That is, the contactless switch 12 can operate without consuming power. In some embodiments, the switch may additionally or alternatively include circuitry or other means for any type of known switch, including a two-on, two-off switch, a magnetic or inductive switch (eg, a reed switch), a capacitive switch, or a mechanical switch.

[0031] In order to allow the target 18 to trigger the non-contact switch 12, the non-contact switch 12 and the actuating body 16 can be connected to the adapter body 14. In some cases, the actuating body 16 can be directly fixed to the non-contact switch 12, so that the actuating body 16 and the non-contact switch 12 are combined into a single, connected, and co-movable system. In addition, the actuating body 16 can be movably supported by the adapter body 14 so that the actuating body 16 can move between a first orientation and a second orientation relative to the adapter body 14 (as shown by arrow 22, which generally represents the type of movement of any actuating body 16, including translation, rotation, or a combination of both). As will be described below, when the actuating body 16 moves to one of the first orientation or the second orientation, the target 18 can be placed in a position within the sensing area 20 of the non-contact switch 12 to activate the non-contact switch to one of the first state or the second state. In addition, according to the desired application, another orientation of the actuating body 16 can place the target 18 outside the sensing area 20.

[0032] Reference now Figure 2 and 3 , shows a first embodiment of the switch assembly 10. The switch assembly 10 includes an adapter body 14 that is directly fixed to the housing 24 of the non-contact switch 12. Figure 4 and Figure 5 As further described, the housing 24 is configured to enclose a magnetic assembly to trigger the non-contact switch 12 based on external conditions. Figure 2 and 3 The housing 24 shown in FIG. 1 includes a circular housing profile (i.e., has a circular cross-section). In other embodiments, the housing 24 may include a square housing profile (see FIG. Fig. 9 ).exist Figure 2 and 3 In the illustrated embodiment, the housing 24 also includes a threaded portion 26 along at least a portion of the length of the housing 24. Figure 2 and 3 As shown in the embodiment of FIG. 2 , the threaded portion 26 is arranged along a circular contour portion of the housing 24 , near one end of the housing 24 .

[0033] Still refer to Figure 2 and Figure 3 In the illustrated embodiment, the switch assembly 10 includes a base 30 including a mounting plate 32 secured to the housing 24. Generally, the base 30 can be configured to secure the switch assembly 10 to a surface to support the switch assembly 10 during activation / actuation. In particular, as Figure 2 and 3As shown, the base 30 includes a strap 34 connected to a mounting plate 32. As shown, the strap 34 is integrally formed with the mounting plate 32, but other configurations are possible, including configurations in which the strap 34 (or other straps) are not associated with a separate mounting plate.

[0034] exist Figure 2 and 3 In the embodiment of the present invention, the band 34 defines an opening 36 extending through the band 34. The opening 36 defines a shape corresponding to the profile of the housing 24 (e.g., a circular profile, etc.). The band 34 also includes a threaded portion on an inner surface that is configured to threadably engage the threaded portion 26 of the housing 24. The threaded engagement between the base 30 and the housing 24 of the non-contact switch 12 can provide precise positioning of the housing 24 relative to the base 30 in some cases, but other configurations are possible. Once installed in the system, this precise positioning can provide accurate adjustment of the switch assembly 10.

[0035] The mounting plate 32 may also include one or more fastener holes 38 configured to receive fasteners (not shown) therein. Fasteners (e.g., rivets, bolts, screws, etc.) may be used to secure the base 30 and thereby the switch assembly 10 to a surface or system (e.g., a door or latch location) where state detection is desired. In other embodiments, other configurations are also possible. In general, any type of mounting system may be used to secure the non-contact switch for use in a particular location as part of a switch assembly according to the present disclosure.

[0036] like Figure 3 As shown, the adapter body 14 is external to the housing 24 and can be coupled to the distal end 40 of the housing 24. In the illustrated embodiment, the adapter body 14 is configured as a cylindrical sleeve that includes means for coupling with the actuator body 16 and the housing 24. For example, the adapter body 14 can be fixed to the housing 24 at a portion of the housing 24 that defines a circular profile. Figure 2 and 3 In the illustrated embodiment, in particular, the adapter body 14 can be threadedly engaged with the housing 24. For example, the adapter body 14 defines a ring shape and includes a threaded inner surface 42. The threaded inner surface 42 can be configured to threadably engage the threaded portion 26 of the housing 24. Thus, for example, the threaded inner surface 42 can provide for precise positioning of the actuating body 16, including the target 18, relative to the housing 24. This precise position can provide for precise positioning of the target 18 relative to the sensing area 20 (see FIG. 2 ) of the non-contact switch 12. Figure 1 ) for accurate adjustment, including when used in conjunction with the threaded band engaging the base 30, as described above.

[0037] exist Figure 2 and 3In the illustrated embodiment, the actuator body 16 includes the target 18, the lever arm 44 and the roller 48, but other configurations of supporting the target may be used in other cases. Figure 2 and 3 In the illustrated embodiment, the lever arm 44 is pivotally connected to the adapter body 14 to allow the target 18 to move between orientations. For example, the lever arm 44 can be pivotally coupled to the adapter body 14 via a pivot pin 46, and the target 18 can be coupled to the lever arm 44 near the pivot coupling. Thus, when the lever arm 44 is rotated, the positioning of the target 18 also changes. In the illustrated embodiment, the pivot pin 46 is configured to extend through the adapter body 14 and the lever arm 44 to pivotally secure the lever arm 44 to the adapter body 14, but a variety of other pivot arrangements are possible (e.g., with an integrally formed pivot pin, etc.).

[0038] exist Figure 2 and 3 In the illustrated embodiment, the roller 48 is coupled to the distal end 50 of the lever arm 44. Thus, the roller 48 can be easily arranged to engage the surface of the system to be monitored at the maximum distance provided by the lever arm 44 to allow actuation of the lever arm 44. In other embodiments, the roller may be positioned or configured differently, and some embodiments may not use a roller for this purpose.

[0039] Reference now Figure 4 and 5 , showing Figure 2 and 3 1. As shown in the figure, in this embodiment, the non-contact switch 12 includes a magnetic component 52 enclosed in the housing 24. The magnetic component 52 is configured to be selectively activated to cause the switch component to be in a first state ( Figure 4 ) and the second state ( Figure 5 ), but other internal switch configurations as generally discussed above are possible.

[0040] like Figure 4 and 5 As shown, the lever arm 44 of the actuating body 16 can be in a first orientation ( Figure 4 ) and the second orientation ( Figure 5 ) to move the target 18 between a first position and a second position, respectively, in which the target 18 activates the magnetic component and in which the target 18 does not activate the magnetic component. Figure 4In the case of the first state shown in FIG. 1 , the lever arm 44 can be positioned in a first orientation to position the target 18 to a first position (e.g., within the sensing region of the non-contact switch 12). With the target 18 within the sensing region, the magnetic assembly 52 is activated by the magnet 54 included in the magnetic assembly 52 and moves within the housing 24 due to the magnetic attraction between the magnet 54 and the target 18.

[0041] Continue to refer to Figure 4 and 5 , the switch assembly 10 can be moved from the first state ( Figure 4 ) changes to the second state ( Figure 5 ). Contact from an external object may cause the actuator body 16 to move relative to the adapter body 14 from a first orientation ( Figure 4 ) towards the second orientation ( Figure 5 ) movement. When the switch assembly 10 is in the second state ( Figure 5 ), the lever arm 44 pivots to a second orientation such that the target 18 is in a second position (e.g., positioned away from the sensing area of ​​the non-contact switch 12). As the target 18 is positioned away from the sensing area of ​​the non-contact switch 12, the magnet 54 in the magnetic assembly 52 transitions to an inactive state (e.g., the target 18 does not activate the magnetic assembly 52).

[0042] In the illustrated embodiment, the magnet 54 of the magnetic assembly moves axially within the housing 24 according to the magnetic attraction between the target 18 and the magnet 54 to selectively activate the non-contact switch 12. In other embodiments, non-axial movement of the magnetic assembly is possible. In addition, in some embodiments, the magnetic assembly of the non-contact switch can be repelled by the target, and the response of the magnetic assembly to the position of the target changes accordingly.

[0043] In the illustrated embodiment, the housing 24 completely surrounds the magnetic assembly 52, and the adapter body 14, the actuating body 16, and the target 18 are completely disposed outside the enclosed housing 24. The housing 24 can therefore be a sealed housing without an entry point for activating the magnetic assembly 52. ​​That is, the contactless nature of the non-contact switch enables the magnetic assembly 52 to be selectively actuated without requiring a mechanical member or structure to extend into the enclosed internal housing to move the magnet 54 of the magnetic assembly (or otherwise change the state of the non-contact switch 12). Accordingly, the magnetic assembly 52 is configured to be selectively actuated by the external target 18 without contact between the magnetic assembly 52 and the target 18, or even without contact between the housing 24 and the target 18. As described above, having no entry point can be beneficial, including in order to provide a housing 24 that can be configured as an explosion-proof housing. For example, the enclosed housing 24 provides a sealed internal chamber that prevents moisture, dust, dirt, corrosives, corrosives, or chemicals from reaching the magnetic assembly 52 or other internal components (e.g., circuits that may generate sparks).

[0044] According to some embodiments, a biasing element may be disposed between the adapter body 14 and the actuating body 16 so that the actuating body is biased in a specific direction. For example, a torsion spring (not shown), a coil spring (not shown), an elastomeric element (not shown), or other known biasing elements may be disposed between the adapter body 14 and the actuating body 16. Figure 4 and 5 The lever arm 44 and the adapter body 14 in the illustrated configuration (or in similar locations in other embodiments) can be provided between the lever arm 44 and the adapter body 14. Thus, the biasing element can be configured to bias the lever arm 44 to one of the first orientation or the second orientation. According to some embodiments, the spring effect can be provided by magnetic repulsion or attraction between the target 18 and the magnet 54 within the magnetic assembly 52, rather than (or in addition to) a separate spring or other biasing element. According to other embodiments, additional magnets can be disposed on the actuation body 16. The additional magnets can be configured to bias the actuation body 16 to one of the first orientation or the second orientation.

[0045] In some embodiments, the switch assembly 10 can be generally in one of the first state or the second state. For example, the arrangement of the biasing element can bias the lever arm 44 to Figure 4 and 5 Additionally or alternatively, the target 18 can be repositioned on the lever arm 44 so that when the lever arm 44 is in the second orientation (i.e., as shown in FIG. Figure 5 In the orientation shown in FIG. 1 , the target 18 is aligned with the magnet 54 of the magnetic assembly 52. ​​In this way, the placement of the target 18 on the lever arm 44 can determine whether the magnetic assembly is properly activated by the target 18. Figure 4In the illustrated embodiment, the switch assembly 10 is in a normally activated state. That is, the actuating body 16 can be biased to the illustrated orientation to align the target 18 with the magnet 54 of the magnetic assembly 52, thereby providing a switch state in which the magnetic assembly is normally activated.

[0046] Now refer to Figure 6 , shows a second embodiment of the switch assembly 10. In the following figures, the same elements will be represented by the same reference numerals. For example, Figure 6 The switch assembly 10 includes an adapter body 14 directly fixed to the housing 24 of the non-contact switch 12, and the actuating body 16 can be movably supported by the adapter body 14 so that the actuating body 16 can move between the first orientation and the second orientation relative to the adapter body 14. In the illustrated embodiment, the actuating body 16 includes a button 60 slidably arranged in the adapter body. The button 60 supports the target 18 that can move with it. The switch assembly 10 also includes a biasing element 62 arranged between the housing 24 and the button 60 of the non-contact switch 12. In the illustrated embodiment, the biasing element 62 is a mechanical coil spring. According to other embodiments, the biasing element can be a magnet or a different type of spring. For example, a ring magnet can be coupled to a button that can be opposite to a magnet in a magnetic assembly, thereby providing a spring effect. As described in detail below, the biasing element 62 can be configured to bias the actuating body 16 toward one of the first or second orientations.

[0047] exist Figure 6 In the illustrated embodiment, the adapter body 14 is configured as a cylindrical sleeve that includes means for coupling with the actuator body 16 and the housing 24. For example, the adapter body 14 can be threadedly engaged with the housing 24 via a threaded inner surface 42. The threaded inner surface 42 can be configured to threadably engage the threaded portion 26 of the housing 24. The actuator body 16 can also define a hole 64 that is configured to slidably receive the button 60 therein.

[0048] Reference now Figure 7 and 8 , showing Figure 6 1. As shown, the non-contact switch 12 includes a magnetic assembly 52 enclosed in the housing 24. The magnetic assembly 52 is configured to be selectively activated to cause the switch assembly 10 to be in a first state ( Figure 7 ) and the second state ( Figure 8 ) between. In the illustrated embodiment, the button 60 of the actuation body 16 can be moved in a first orientation ( Figure 7 ) and the second orientation ( Figure 8 ) so that the target 18 moves between the first position and the second position, respectively. For example, when the switch assembly 10 is in the first state ( Figure 7), the button 60 can be positioned in the first orientation to position the target 18 in the first position (e.g., not within the sensing area of ​​the non-contact switch 12). When the target 18 is away from the sensing area, the magnetic assembly 52 is not activated (e.g., not in an activated state). When the switch assembly 10 is in the first state, the biasing element 62, in this case a coil spring, biases the button 60 of the actuating body 16 to the first orientation ( Figure 7 ), thereby positioning the target 18 supported by the actuating body 16 to the first position.

[0049] Then, upon contact between an external object (e.g., a surface) and a portion of the actuation body 16 (e.g., button 60), the switch assembly 10 may transition from the first state to the second state. The contact from the external object may cause the actuation body 16 to transition from a first orientation ( Figure 7 ) towards the second orientation ( Figure 8 ) movement. When the switch assembly 10 is in the second state ( Figure 8 ), button 60 is translated to a second orientation such that target 18 is in a second position (e.g., positioned within the sensing region of contactless switch 12). With target 18 within the sensing region of contactless switch 12, magnet 54 in magnetic assembly 52 transitions to an activated state. In the illustrated embodiment, magnet 54 of the magnetic assembly moves axially within housing 24 in response to the magnetic attraction between target 18 and magnet 54. This axial movement of magnet 54 selectively activates contactless switch 12. (As also described above, other types of internal components for contactless switches are possible, including components that can be used with a button actuation body.)

[0050] As previously described, the switch assembly 10 can generally be in one of the first state or the second state. For example, the arrangement of the biasing element can bias the button 60 to one of the first orientation or the second orientation. Figure 7 In the illustrated embodiment, the switch assembly 10 is in a normally inactive state. That is, the actuating body 16 can be biased to the illustrated orientation, so that the target 18 is away from the magnet 54 of the magnetic assembly 52, thereby providing a switch state in which the magnetic assembly is normally not activated. However, in other embodiments, the opposite configuration is also possible.

[0051] Reference now Fig. 9 , showing a third embodiment of the switch assembly 10. In the illustrated embodiment, the actuating body 16 is configured as a button 60, but other actuating body configurations are possible, including a lever arm (e.g., previously relative to Figures 2 to 5 described). Fig. 9In the illustrated embodiment, the housing 24 includes a square (or other rectangular) housing profile. Accordingly, the adapter body 14 can be secured to the housing 24 at the portion of the housing 24 that defines the square profile. In the illustrated embodiment, the adapter body 14 can include an opening (not shown) that is configured to receive the housing 24 so that the adapter body 14 can be positioned around the housing 24. According to some embodiments, the adapter body 14 can provide an interference fit between the housing 24 and the adapter body 14 to secure the adapter body 14 to the housing 24. In other embodiments, the adapter body 14 can provide a sliding fit. In some embodiments, the adapter body 14 can be formed as or generally include a band (e.g., as also described above). In Fig. 9 In the illustrated embodiment, the adapter body 14 includes apertures 68 configured to align with housing apertures 70 such that when the adapter body 14 is mounted to the housing 24 , fasteners may be inserted through the apertures 68 and the housing apertures 70 to secure the adapter body 14 to the housing 24 .

[0052] exist Fig. 9 In the embodiment of the present invention, the button 60 presents a rectangular profile and the hole 64 in the actuator body 16 that slidably receives the button 60 is also rectangular. In other embodiments, other shapes of buttons are possible. Similarly, in some embodiments, the rectangular profile for the switch housing or for the adapter body can be implemented in combination with other types of actuator bodies, including levers (e.g., as described above).

[0053] As described above, some embodiments may include multiple switches (e.g., having corresponding multiple separate housings) that may be activated by one or more actuating bodies. Fig.10 A switch assembly 100 is shown that includes a plurality of non-contact switches 12 that are coupled to and supported by an adapter body 14. The switch assembly 100 also includes an actuation body 16 that supports a target 18 and is movable relative to the adapter body 14, as generally indicated by arrow 122. It should be understood that while arrow 122 represents pivotal or rotational movement, in some embodiments, the actuation body 16 may also (or alternatively) translate. Thus, the actuation body 16 may generally be movable relative to the adapter body 14 to selectively activate one or more of the non-contact switches 12, including individually or collectively (in various combinations), depending on the configuration of the particular installation.

[0054] In some examples, including Fig.10In the example shown, each of the plurality of non-contact switches 12 can encapsulate a magnetic assembly 52 that is configured to be selectively activated by a target 18. Accordingly, with the aid of a ferrous or magnetic structure for the target 18, the actuating body 16 can move relative to the plurality of non-contact switches 12 to selectively actuate one or more of the non-contact switches 12. For example, in the illustrated embodiment, when the actuating body 16 moves, the switch assembly 100 can be configured to detect the target 18 at a plurality of different positions. In this way, a plurality of positions of the actuating body 16 can be determined based on which of the plurality of non-contact switches 12 is in an activated state, which can correspond to a plurality of positions of an external object in contact with the actuating body 16.

[0055] In some embodiments, multiple switches (e.g., having corresponding multiple separate housings) can be configured to be activated by multiple targets (e.g., separately) supported on one or more actuation bodies. Fig.11 A switch assembly 200 is shown that includes a plurality of non-contact switches 12 that are coupled to and supported by an adapter body 14. In the illustrated embodiment, the adapter body 14 supports an actuation body 16 and the actuation body 16 supports a plurality of targets 18. Thus, movement or orientation of the actuation body 16 (e.g., as indicated by arrow 222) can cause the plurality of targets 18 to move together to selectively activate one or more of the plurality of non-contact switches 12. For example, Fig.11 As shown, the actuator body 16 can move relative to the adapter body 14 and the plurality of non-contact switches 12 (e.g., as shown by arrow 222) to move the target 18 together, thereby selectively activating the magnetic assembly 52 enclosed in each of the plurality of non-contact switches 12. In some embodiments, the actuator body 16 can be formed by a plurality of separate movable bodies, including, for example Fig.11 Thus, in some embodiments, movement of different specific components relative to the common adapter body 14 can selectively activate corresponding specific non-contact switches.

[0056] In some embodiments, multiple switches (e.g., having corresponding multiple separate housings) can be configured to be activated by a single target supported on an actuation body. Fig.12A switch assembly 300 is shown that includes a plurality of contactless switches 12 that are coupled to and supported by an adapter body 14. In the illustrated embodiment, the adapter body 14 supports an actuation body 16 that includes a target 18 that is configured to simultaneously activate one or more of the plurality of contactless switches 12. For example, the size of the target 18 can be sufficiently designed so that when the actuation body 16 moves within the sensing regions 20 of the plurality of contactless switches 12, the target 18 can selectively and simultaneously activate a plurality (e.g., all) of the magnetic assemblies 52 enclosed within the contactless switches 12.

[0057] As previously described herein, some of the disclosed switch assemblies may generally be used to adapt a contactless switch to a mechanically triggered switch, such that the internal electrical state of the contactless switch may be triggered by an event (e.g., a proximity event) resulting in mechanical contact with an object or surface. Thus, for example, some embodiments may allow a contactless switch to be converted to a contact switch assembly, or may allow a contactless internal switch device (e.g., an internal switch circuit) to be adapted for contact-based triggering. Accordingly, the contactless switch 12 (e.g., a magnetic switch) previously described herein is configured to operate as a switch that is triggered without mechanical contact, independent of the actuation body 16 or the adapter body 14, but may generally be adapted for contact-based operation under various embodiments. For example, a magnetic switch may operate alone as a proximity sensor, and may also be modified or adapted to operate as a contact switch (e.g., a limit switch) using the systems and methods herein. Similarly, in some embodiments, a contactless circuit or other component may be adapted for use with a non-converted contact sensor.

[0058] In some embodiments, methods embodying aspects of the present invention may be used to utilize, manufacture, or install the devices or systems disclosed herein. Accordingly, any description herein of a particular feature, capability, or intended purpose of a device or system is generally intended to include disclosure of methods for using such a device for the intended purpose, methods for otherwise achieving such capabilities, methods for manufacturing related components of such a device or system (or an entire device or system), and methods for installing said disclosed (or otherwise known) components to support such purposes or capabilities. Similarly, unless otherwise specified or limited, discussion herein of any method for manufacturing or using a particular device or system (including installing the device or system) is intended to inherently include disclosure of features used as embodiments of the present invention and implementation of the functionality of such a device or system.

[0059] In this regard, for example, some embodiments include a method of converting a switch assembly from a non-contact switch assembly to a contact switch assembly to detect an event. In the following description, reference will be made to Figure 1 However, referring to Figure 1, it should be understood that the following description is generally also applicable to the various other embodiments described herein.

[0060] Specific reference Figure 1 , the adapter body 14 can be fixed to the outside of the housing (e.g., housing 24) of an existing non-contact switch 12, which is desired to be converted to perform the function of a contact switch. The actuation body 16 can be connected to and supported by the adapter body 14, so that the target 18 connected to the actuation body 16 is supported by the adapter body 14 and the actuation body 16 outside the housing of the non-contact switch 12. The actuation body 16 can then be set to move relative to the adapter body 14 (and subsequently relative to the non-contact switch 12 itself). When a proximity event occurs, the actuation body 16 can move from a first orientation to a second orientation (e.g., by contact with an external object), thereby moving the target 18 from a first position to a second position. Therefore, the target 18 can selectively activate the switch assembly 10 from the outside of the housing of the non-contact switch 12 based on the position of the actuation body 16 (e.g., based on whether it is aligned within the sensing area 20 of the non-contact switch 12). According to some embodiments, the housing 24 of the non-contact switch 12 can be inserted into or mounted to a base (e.g., Figure 2 The device can be mounted on a base 30) to secure to a surface or system.

[0061] The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A switch assembly for detecting a system state, the switch assembly comprising: an enclosure surrounding the magnetic assembly, the enclosure being a sealed enclosure without an access point for activating the magnetic assembly, and the magnetic assembly being configured to be selectively activated to move the switch assembly between a first state and a second state; an adapter body secured to the enclosure, external to the enclosure and independent of the enclosure; and an actuating body external to and independent of the enclosed housing, the actuating body being movably supported by the adapter body and supporting a target external to the enclosed housing, the target being at least one of a magnetic target or a ferrous target; The actuation body is movable between first and second orientations relative to the adapter body and the closure housing to move the target between a first position in which the target activates the magnetic assembly and a second position in which the target does not activate the magnetic assembly, respectively.

2. The switch assembly according to claim 1, wherein: The enclosed housing and the magnetic assembly are configured to operate as a magnetic switch independently of the adapter body and the actuation body; and Therein, the adapter body is configured as part of a retrofit assembly for a magnetic switch.

3. The switch assembly according to claim 1, wherein: The closure housing includes a threaded portion; and Therein, the adapter body is configured to be threadedly fixed to the threaded portion.

4. The switch assembly according to claim 1, further comprising: A biasing element is configured to bias the actuation body toward one of the first orientation or the second orientation.

5. The switch assembly according to claim 1, wherein: The actuation body is a lever arm pivotably secured to the adapter body.

6. The switch assembly according to claim 1, wherein: The actuating body is a button.

7. The switch assembly according to claim 1, wherein: The target is a first target of a plurality of targets supported by the actuation body; wherein the closed enclosure is a first closed enclosure of a plurality of closed enclosures, each closed enclosure having a magnetic assembly configured to be selectively activated; and Wherein, the actuating body is movable relative to the adapter body and the plurality of closed housings to move the targets together to selectively activate the magnetic assembly.

8. The switch assembly according to claim 1, wherein: The magnetic assembly is part of one or more of the following: SPDT switch; Double-pole double-throw switch; Single-pole single-throw switch; or Double pole single throw switch.

9. The switch assembly according to claim 1, wherein: The closing housing comprises a circular housing contour, the adapter body being fixed to the closing housing.

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