DETECTION DEVICE FOR A FIRE SAFETY SYSTEM

A detection device includes a cover member adapted to support a detector assembly having a plurality of pins. A base member of the detection device is coupled to the cover member and, is adapted to accommodate a plurality of electrical terminals adapted to be engaged with the pins. The detection device includes a rotatable ring disposed on the base member and adapted to lock the cover member with respect to the base member. The detection device includes a plurality of shorting elements disposed on the rotatable ring and adapted to form a shorting contact with the electrical terminals. The rotatable ring is rotated with respect to the base member and the cover member to at least one of lock the cover member with respect to the base member and break the shorting contact, and unlock the cover member with respect to the base member and form the shorting contact.

FIELD OF THE INVENTION

The disclosure relates to fire safety systems and more particularly, to a detection device for a fire safety system.

BACKGROUND

Commercial smoke detectors generally connect, electrically, to a centralized control panel in order to communicate with each other and with the centralized control panel in a network. For situations where electrical isolation is required, smoke detectors are generally installed into a base with a closed continuity switch. This switch is opened after detectors make contact. When a detector is removed, this continuity switch needs to be closed before the detector contacts are broken.

SUMMARY

This summary is provided to introduce a selection of concepts, in a simplified format, that are further described in the detailed description of the invention. This summary is neither intended to identify key or essential inventive concepts of the invention and nor is it intended for determining the scope of the invention.

In one or more embodiments of the disclosure, a detection device is disclosed. The detection device includes a cover member defining a housing adapted to support a detector assembly having a plurality of pins. Further, the detection device includes a base member coupled to the cover member and adapted to accommodate a plurality of electrical terminals adapted to be engaged with the plurality of pins to form an electrical contact. The detection device includes a rotatable ring disposed on an outer periphery of the base member and adapted to lock the cover member with respect to the base member based on a rotation of the rotatable ring. Further, the detection device includes a plurality of shorting elements disposed on the rotatable ring and adapted to form a shorting contact with the plurality of electrical terminals based on the rotation of the rotatable ring. The rotatable ring is rotated with respect to the base member and the cover member to at least one of lock the cover member with respect to the base member and break the shorting contact between the plurality of electrical terminals and the plurality of shorting elements, and unlock the cover member with respect to the base member and form the shorting contact between the plurality of electrical terminals and the plurality of shorting elements.

In one or more embodiments, the cover member includes a peripheral wall vertically extending from a bottom surface of the cover member and adapted to be engaged with the rotatable ring.

In one or more embodiments, each of the plurality of pins extends through the bottom surface of the cover member.

In one or more embodiments, the peripheral wall includes a plurality of locking slots adapted to be engaged with the rotatable ring based on the rotation of the rotatable ring.

In one or more embodiments, the peripheral wall includes a plurality of guiding slots adapted to receive a plurality of protrusions formed on an inner circumferential surface of the base member.

In one or more embodiments, the rotatable ring includes a plurality of supporting portions and a plurality of engaging portions. The plurality of engaging portions extends laterally from the plurality of supporting portions. The plurality of engaging portions is adapted to be engaged with the plurality of locking slots to lock the cover member with respect to the base member based on the rotation of the rotatable ring.

In one or more embodiments, each of the plurality of supporting portions is adapted to support at least one of the plurality of shorting elements.

In one or more embodiments, each of the plurality of supporting portions includes a first wall extending orthogonally from an inner circumferential surface of the rotatable ring. Further, each of the plurality of supporting portions includes a second wall extending orthogonally from the first wall and adapted to support one of the plurality of shorting elements. A gap is defined between the second wall and the inner circumferential surface of the rotatable ring, and is adapted to receive at least a portion of the outer periphery of the base member.

In one or more embodiments, the rotatable ring includes a plurality of tabs protruding from the inner circumferential surface and adapted to be engaged with a plurality of slits formed on the outer periphery of the base member.

In one or more embodiments, each of the plurality of engaging portions extends laterally from the first wall and the second wall.

In one or more embodiments, the base member includes a plurality of mounting portions circumferentially distributed around a central opening of the base member. Each of the plurality of mounting portions is adapted to accommodate at least one of the plurality of electrical terminals.

In one or more embodiments, each of the plurality of electrical terminals includes a supporting portion adapted to be fastened to one of the plurality of mounting portions of the base member. Further, each of the plurality of electrical terminals includes a contact portion distal to the supporting portion and adapted to form the shorting contact with one of the plurality of shorting elements. Each of the plurality of electrical terminals includes an intermediate portion disposed between the supporting portion and the contact portion. The intermediate portion is adapted to be engaged with one of the plurality of pins.

In one or more embodiments, the contact portion includes a contact strip adapted to resiliently move to form the shorting contact with one of the plurality of shorting elements.

In one or more embodiments, the intermediate portion includes a pair of clamps adapted to resiliently expand with respect to each other to hold one of the plurality of pins therebetween.

In one or more embodiments, the rotatable ring is rotated between one of a first position and a second position opposite to the first position, when the plurality of pins forms the electrical contact with the plurality of electrical terminals.

In one or more embodiments, in the first position, the plurality of engaging portions locks the cover member with respect to the base member and, the contact strip of each of the plurality of electrical terminals moves away from each of the plurality of shorting elements to the break the shorting contact between the plurality of electrical terminal and the plurality of shorting elements. In the second position, the contact strip moves toward each of the plurality of shorting elements to form the shorting contact between the plurality of electrical terminal and the plurality of shorting elements, and unlocking the cover member with respect to the base member to remove the plurality of pins from the pair of clamps of the plurality of electrical terminals.

In one or more embodiment of the disclosure, a rotatable ring for a detection device is disclosed. The rotatable ring includes a body having an inner circumferential surface and an outer circumferential surface adapted to coincide with an outer periphery of a base member of the detection device. Further, the rotatable ring includes a plurality of supporting portions formed on the inner circumferential surface of the body and adapted to support a plurality of shorting elements. The rotatable ring includes a plurality of engaging portions extending laterally from one of the plurality of supporting portions. The plurality of engaging portions is adapted to be engaged with a cover member of the detection device to lock the cover member with respect to the base member. The rotatable ring is rotated with respect to the base member and the cover member to at least one of: lock the cover member with respect to the base member and break a shorting contact between the plurality of shorting elements and a plurality of electrical terminals positioned on the base member, and unlock the cover member with respect to the base member and form the shorting contact between the plurality of electrical terminals and the plurality of shorting elements.

In one or more embodiments, the rotatable ring includes a plurality of supporting portions and a plurality of engaging portions extending laterally from one of the plurality of supporting portions. The plurality of engaging portions is adapted to be engaged with a plurality of locking slots of the cover member to lock the cover member with respect to the base member based on the rotation of the rotatable ring.

In one or more embodiments, each of the plurality of supporting portions is adapted to support at least one of the plurality of shorting elements.

In one or more embodiments, each of the plurality of supporting portions includes a first wall extending orthogonally from the inner circumferential surface of the rotatable ring. Further, each of the plurality of supporting portions includes a second wall extending orthogonally from the first wall and adapted to support one of the plurality of shorting elements. A gap is defined between the second wall and the inner circumferential surface. The gap is adapted to receive at least a portion of the outer periphery of the base member.

To further clarify the advantages and features of the methods, systems, and apparatuses/devices, a more particular description of the methods, systems, and apparatuses/devices will be rendered by reference to specific embodiments thereof, which are illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the disclosure and are therefore not to be considered limiting of its scope. The disclosure will be described and explained with additional specificity and detail with the accompanying drawings.

DETAILED DESCRIPTION OF FIGURES

For the purpose of promoting an understanding of the principles of the disclosure, reference will now be made to the various embodiments and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended, such alterations and further modifications in the illustrated system and device, and such further applications of the principles of the disclosure as illustrated therein being contemplated as would normally occur to one skilled in the art to which the disclosure relates.

Reference throughout this specification to “an aspect”, “another aspect” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the disclosure. Thus, appearances of the phrase “in an embodiment”, “in another embodiment”, “some embodiments”, “one or more embodiments” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.

Embodiments of the disclosure will be described below in detail with reference to the accompanying drawings.

Fire safety systems may be employed for monitoring air quality in an environment and suppressing any potential hazard which may lead to a fire. Such fire safety systems include various components, such as fire suppression systems, fire alarms, and a plurality of detectors used to detect the air quality in an enclosed space or a building to provide a warning or an alarm when smoke is present. The plurality of detectors is generally electrically connected to each other and to a centralized control panel of a fire safety system. For instance, the plurality of detectors is typically electrically connected in a loop configuration, with connecting wirings starting and finishing at the centralized control panel. In some instances, multiple loops may be connected to a single centralized control panel.

Currently, each of the plurality of detectors is provided with an isolator mechanism to electrically isolate such a detector from the loop configuration in case of any operational fault. Such an isolator mechanism ensures that a wiring segment with an operational fault is isolated from the rest of the wirings of the loop configuration. Further, the detector(s) that isolated the faulty wiring segment continues to operate normally. This prevents the faulty wiring segment from disabling the operation of other components of the fire safety system. Generally, the detector, having a detection element, contains a continuity switch that is normally in an open condition when the detection element is installed onto a base of the detector and closed when the detector element is removed from the base.

Therefore, in order to remove the detection element, the continuity switch is operated to a closed condition before removing the detection element from the base. This ensures that the detector can be removed while the rest of the fire safety system can remain operational. However, implementation of such a closed continuity switch may require a complex constructional design of the detector. This may increase the overall manufacturing cost of the detector.

Currently, the detectors are implemented with a single action mechanism to connect the detector and activate the continuity switch. For example, a single moving action may be used to connect the detector and activate the continuity switch. In order to implement the single action mechanism, the detectors are manufactured with tight tolerances with respect to sub-components of such detector. This results in a complex constructional design of the detector and increases the overall manufacturing cost of such a detector.

The disclosure provides a detection device for a fire safety system to eliminate one or more shortcomings associated with the abovementioned detectors. The detection device, as explained in the subsequent sections, eliminates the single moving action to connect the detector and activate the continuity switch. The detection device enables a detector to form a loop communication first and then break a continuity switch to deactivate such a switch. Similarly, the detection device enables activation of the continuity switch first and then breaks the connection of the detector from the loop communication. The detection device is designed and constructed in such a manner that the continuity switch function is separated from the detector to base connection function. By separating the motions for the continuity switch function and the detector to base connection function, the construction is simplified and does not depend on tight tolerancing to create a reliable design.

FIG.1illustrates an isometric view of a detection device100for a fire safety system, according to one or more embodiments of the disclosure. In one or more embodiments, the fire safety system may be employed to detect parameters, such as smoke, temperature, or other warning signs, associated with flammable elements, such as gases or any other flammable object present in a space and subsequently, a fire suppression system may be operated to extinguish flames arising from the flammable elements or prevent such flammable element from burning in a space based on the detection.

The fire safety system may include a plurality of detection devices, such as the detection device100, mounted at various locations in an environment. In one or more embodiments, the plurality of detection devices may interchangeably be referred to as the detection devices100. Further, the detection devices100may individually be referred to as the detection device100. The detection device100may be adapted to detect parameters such as smoke, temperature, or other warning signs in such an environment. In an exemplary embodiment, the detection device100may be mounted on a roof of an enclosed space, such as a room. The detection devices100may be adapted to be in communication with each other and with a centralized control unit (not shown) of the fire safety system via a network.

In one embodiment, the detection device100may be embodied as a photoelectric detector, without departing from the scope of the disclosure. In another embodiment, the detection device100may be embodied as a combination of a temperature detector, a carbon dioxide detector, and a photoelectric detector, without departing from the scope of the disclosure. Referring toFIG.1, the detection device100may include, but is not limited to, a cover member102, a base member104, and a rotatable ring106.

FIGS.2aand2billustrate an isometric view and a bottom view, respectively, of the cover member102, according to one or more embodiments of the disclosure. In one or more embodiments, the cover member102may be adapted to accommodate various sub-components, such as a detector assembly (not shown), of the detection device100. In an exemplary embodiment, the detector assembly may include, but is not limited to, a smoke chamber, a sensing unit, and a circuit board, without departing from the scope of the disclosure.

Referring toFIGS.2aand2b, the cover member102may define a housing adapted to accommodate the detector assembly. The housing may be defined between an upper portion102-1of the cover member102and a bottom surface102-2of the cover member102. In one or more embodiments, the detection device100may include, but is not limited to, a plurality of pins202connected to the sensing unit of the detector assembly. Each of the plurality of pins202may extend through the bottom surface102-2of the cover member102.

The cover member102may include a plurality of openings102-3to allow smoke or gas to enter within the smoke chamber from the surrounding. The plurality of openings102-3may be formed on the upper portion102-1of the cover member102. Further, the cover member102may include a peripheral wall204vertically extending from the bottom surface102-2of the cover member102. The peripheral wall204may be adapted to be engaged with the rotatable ring106and the base member104. In one or more embodiments, the peripheral wall204may include, but is not limited to, a plurality of locking slots206and a plurality guiding slots208. In one or more embodiments, each of the plurality of guiding slots208may be embodied as a vertical slot extending along a height ‘h’ of the peripheral wall204.

The plurality of guiding slots208may be adapted to be engaged with the base member104. The plurality of guiding slots208may engage with the base member104to secure the cover member102to the base member104of the detection device100. Further, the plurality of locking slots206may be adapted to be engaged with the rotatable ring106based on a rotation of the rotatable ring106which is explained in subsequent sections of the disclosure. The plurality of locking slots206may engage with the rotatable ring106to lock the movement of the cover member102with respect to the base member104.

FIG.3illustrates a partial isometric view of the detection device100depicting the base member104and the rotatable ring106of the detection device100, according to one or more embodiments of the disclosure.FIG.4illustrates an exploded view of the detection device100depicting the base member104and the rotatable ring106, according to one or more embodiments of the disclosure. The base member104may be coupled to the cover member102.FIG.5illustrates an isometric view of the base member104, according to one or more embodiments of the disclosure. The base member104may be adapted to be mounted on a surface, such as a roof, via fastening members to support the detection device100on such a surface.

Referring toFIGS.3,4, and5, in the illustrated embodiment, the base member104may include, but is not limited to, a supporting base502and an outer periphery504formed around the supporting base502. The base member104may be adapted to accommodate a plurality of electrical terminals302adapted to be engaged with the plurality of pins202to form an electrical contact. In one or more embodiments, the detection device100may include a plurality of shorting elements304adapted to be disposed on the rotatable ring106. Each of the plurality of shorting elements304may be adapted to form a shorting contact with the plurality of electrical terminals302based on a rotation of the rotatable ring106. Constructional and operational details of the shorting elements304and the rotatable ring106are explained with respect to the description ofFIGS.8a-8dandFIGS.9a-9bof the disclosure.

The base member104may include, but is not limited to, a plurality of mounting portions506circumferentially distributed around a central opening104-1of the base member104. In the illustrated embodiment, the central opening104-1may be formed on the supporting base502to allow insertion of electrical wires (not shown) within the base member104and thereby, allow electrical connection of such wires to the plurality of electrical terminals302. The plurality of mounting portions506may be formed on the supporting base502. Each of the plurality of mounting portions506may be adapted to accommodate at least one of the plurality of electrical terminals302. Each of the plurality of mounting portions506may include a groove508adapted to receive a fastener702(shown inFIG.7) to fasten one of the plurality of the electrical terminals302and electrical wires to the base member104.

Further, the supporting base502may include, but is not limited to, a plurality of mounting projections510circumferentially distributed around the central opening104-1. The plurality of mounting projections510may be adapted to be engaged with the plurality of electrical terminals302. In an exemplary embodiment, each of the plurality of mounting projections510may be snap-fitted with each of the plurality of electrical terminals302and thereby, securing such electrical terminal302within one of the plurality of mounting portions506. In the illustrated embodiment, each of the plurality of mounting portions506may be defined between the adjacent mounting projections510.

As mentioned earlier, referring toFIG.5, the outer periphery504of the base member104may be formed around the supporting base502. In one or more embodiments, the outer periphery504may interchangeably be referred to as the outer peripheral wall504, without departing from the scope of the disclosure. In the illustrated embodiment, the outer peripheral wall504may include an inner circumferential surface504-1and an outer circumferential surface504-2distal to the inner circumferential surface504-1.

Further, the outer peripheral wall504may include, but is not limited to, a plurality of protrusions512formed on the inner circumferential surface504-1and a plurality of slits514formed on the outer circumferential surface504-2. The plurality of guiding slots208formed on the peripheral wall204of the cover member102may be adapted to receive the plurality of protrusions512. In particular, the cover member102and the base member104may be attached to each other in a manner that the plurality of protrusions512may align with the plurality of guiding slots208and subsequently, slides within the plurality of guiding slots208to restrict relative rotational movement between the cover member102and the base member104.

In one or more embodiments, the plurality of slits514may be adapted to be engaged with the rotatable ring106of the detection device100. The rotatable ring106may be disposed on the outer peripheral wall504of the base member104in a manner that the plurality of slits514engages with the rotatable ring106. In one or more embodiments, the rotatable ring106may be adapted to rotate around the outer peripheral wall504with respect to the plurality of slits514. Each of the plurality of slits514may be adapted to restrict the rotation of the rotatable ring106beyond a predefined angle in a clockwise direction or an anti-clockwise direction.

FIG.6illustrates an isometric view of one of the plurality of electrical terminals302, according to one or more embodiments of the disclosure.FIG.7illustrates an isometric view of the base member104with the plurality of electrical terminals302, according to one or more embodiments of the disclosure. Referring toFIGS.6and7, each of the plurality of electrical terminals302may include, but is not limited to, a supporting portion602, a contact portion604distal to the supporting portion602, and an intermediate portion606.

The supporting portion602may be adapted to be fastened to one of the plurality of mounting portions506of the base member104. In the illustrated embodiment, the supporting portion602may include, but is not limited to, a pair of vertical walls608and a horizontal wall610disposed between the pair of vertical walls608. Each of the pair of vertical walls608may be adapted to be engaged with one of the plurality of mounting projections510of the base member104. Further, the horizontal wall610may be adapted to be aligned to the one of the plurality of mounting portions506of the base member104.

The pair of vertical walls608may be engaged with adjacent mounting projections510in a manner that the horizontal wall610aligns to one of the plurality of mounting portions506defined therebetween. In the illustrated embodiment, the horizontal wall610may include a groove612adapted to be aligned with the groove508of one of the plurality of mounting portions506. The fastener702may be inserted through the groove612of the horizontal wall610and the groove508of one of the plurality of mounting portions506to fasten the electrical terminal302to one of the plurality of mounting portions506.

Further, the intermediate portion606of each of the electrical terminals302may be disposed between the supporting portion602and the contact portion604. The intermediate portion606may be adapted to be engaged with one of the plurality of pins202extending from the bottom surface102-2of the cover member102. The intermediate portion606may engage with one of the plurality of pins202to form the electrical contact between the sensing unit and one of the plurality of electrical terminals302. In the illustrated embodiment, the intermediate portion606may include a pair of clamps614adapted to resiliently expand with respect to each other to hold one of the plurality of pins202therebetween. In particular, the cover member102may be attached to the base member104in a manner that each of the plurality of pins202resiliently expands the pair of clamps614of the respective electrical terminal302and held between the pair of clamps614to form the electrical contact therebetween.

Referring toFIGS.4and7, the contact portion604of each of the electrical terminals302may be adapted to form the shorting contact with one of the plurality of shorting elements304. In one or more embodiments, the contact portion604may include a contact strip604-1adapted to resiliently move to form the shorting contact with one of the plurality of shorting elements304. In the illustrated embodiment, the contact strip604-1may be embodied as U-shaped strip having a first end attached to the intermediate portion606of the electrical terminal302and a second end adapted to from the shorting contact with one of the plurality of shorting elements304.

The contact portion604may form the shorting contact with one of the plurality of shorting elements304based on the rotation of the rotatable ring106. When the rotatable ring106is rotated in one of the clockwise direction and the anti-clockwise direction, then the contact portion604of each of the electrical terminals302may form the shorting contact with one of the plurality of shorting elements304. Owing to such shorting contact, the plurality of pins202of the sensing unit of the detection device100may be electrically isolated from the centralized control panel of the fire safety system and thereby, isolating the detector assembly from the centralized control panel.

Similarly, when the rotatable ring106is rotated in one of the clockwise direction and the anti-clockwise direction, then the contact portion of each of the electrical terminals302may break the shorting contact with one of the plurality of shorting elements304. Owing to such breaking of the shorting contact, the plurality of pins202of the sensing unit of the detection device100may be electrically connected to the centralized control panel of the fire safety system and thereby, electrically connecting the detector assembly to the centralized control panel.

FIGS.8aand8billustrate different isometric views of the rotatable ring106, according to one or more embodiments of the disclosure.FIGS.8cand8dillustrate a planar view and a sectional view, respectively, of the rotatable ring106, according to one or more embodiments of the disclosure. Referring toFIGS.8a-8d, the rotatable ring106may be disposed on the outer periphery wall504of the base member104. In one or more embodiments, the rotatable ring106may be adapted to be rotated in one of the clockwise direction and the anti-clockwise direction with respect to the base member104and the cover member102. The rotatable ring106may be adapted to lock the cover member102with respect to the base member104based on the rotation of the rotatable ring106.

In the illustrated embodiment, the rotatable ring106may include an outer circumferential surface106-1and an inner circumferential surface106-2. The outer circumferential surface106-1may be provided with a plurality of gripping protrusions106-3to provide a grip to a user while rotating the rotatable ring106. Further, the inner circumferential surface106-2may be adapted to be movably engaged with the outer circumferential surface504-2of the outer peripheral wall504of the base member104. In the illustrated embodiment, the rotatable ring106may include a plurality of tabs806protruding from the inner circumferential surface106-2. The plurality of tabs806may be adapted to be engaged with the plurality of slits514formed on the outer circumferential surface504-2of the base member104. The plurality of tabs806may be adapted to move within the plurality of slits514to allow the rotation of the rotatable ring106with respect to the base member104.

In the illustrated embodiment, the rotatable ring106may include, but is not limited to, a plurality of supporting portions802and a plurality of engaging portions804. Each of the plurality of supporting portions802may be adapted to support at least one of the plurality of shorting elements304. In one embodiment, the plurality of shorting elements304may be attached to the plurality of supporting portions802via an insert moulding process as known in the art. In one or more embodiments, the plurality of shorting elements304may be attached to the plurality of supporting portions802via any mechanical attachment, such as fasteners, known in the art, without departing from the scope of the disclosure. In one or more embodiments, each of the plurality of supporting portions802may include, but is not limited to, a first wall802-1and a second wall802-2. The first wall802-1may extend orthogonally from the inner circumferential surface106-2of the rotatable ring106. Further, the second wall802-2may extend orthogonally from the first wall802-1and be adapted to support one of the plurality of shorting elements304. A gap ‘G’ may be defined between the second wall802-2and the inner circumferential surface106-2of the rotatable ring106. The gap ‘G’ may be adapted to receive at least a portion of the outer peripheral wall504of the base member104.

Further, the plurality of engaging portions804of the rotatable ring106may extend laterally from the plurality of supporting portions802. The plurality of engaging portions804may be adapted to be engaged with the plurality of locking slots206to lock the cover member102with respect to the base member104based on the rotation of the rotatable ring106. When the rotatable ring106is rotated in one of the clockwise direction and the anti-clockwise direction, then the plurality of engaging portions804may slide within the plurality of locking slots206to lock a relative movement between the cover member102and the base member104. In particular, the engagement between the plurality of engaging portions804and the plurality of locking slots206may restrict the removal of the cover member102from the base member104of the detection device100.

The rotatable ring106may be rotated between one of a first position and a second position opposite to the first position, when the plurality of pins202forms the electrical contact with the plurality of electrical terminals302. In one embodiment, the rotatable ring106may be rotated in the clockwise direction to move the rotatable ring106to the first position and, in the anti-clockwise direction to move the rotatable ring106to the second position. In another embodiment, the rotatable ring106may be rotated in the anti-clockwise direction to move the rotatable ring106to the first position and, in the clockwise direction to move the rotatable ring106to the second position.

In the first position, the plurality of engaging portions804may lock the cover member102with respect to the base member104and, the contact strip704-1of each of the plurality of electrical terminals302moves away from each of the plurality of shorting elements304to the break the shorting contact between the plurality of electrical terminal302and the plurality of shorting elements304. Further, in the second position, the contact strip704-1may move towards each of the plurality of shorting elements304to form the shorting contact between the plurality of electrical terminals302and the plurality of shorting elements304, and unlock the cover member102with respect to the base member104to remove the plurality of pins202from the pair of clamps706-1of the plurality of electrical terminals302.

FIGS.9aand9billustrate partial isometric views of the detection device100depicting the rotation of the rotatable ring106with respect to the cover member102of the detection device100, according to one or more embodiments of the disclosure. Referring toFIG.9a, the rotatable ring106may be at the first position with respect to the cover member102and the base member104of the detection device100.

In the illustrated embodiment, the cover member102may be coupled to the base member104to engage the plurality of pins202with the plurality of electrical terminals302. Further, the contact portion604of each of the plurality of electrical terminals302may be positioned away from each of the plurality of shorting elements304disposed on the supporting portion802of the rotatable ring106. Thereby, the electrical connection between the detection assembly and the centralized control unit of the fire safety system may be established via electrical contact between the plurality of pins and the electrical terminals.

Further, in the first position of the rotatable ring106, the plurality of engaging portions804may rest within the plurality of locking slots206of the cover member102to lock the cover member102with respect to the base member104. As explained earlier, the rotatable ring106may be rotatably engaged and disposed on the outer peripheral wall504of the base member. Further, in the first position, the plurality of engaging portions804may be engaged with the plurality of locking slots206of the cover member. The rotatable ring106may restrict the movement of the cover member102with respect to the base member and thereby, restrict the removal of the cover member from the base member. In particular, the rotatable ring106may be rotated, to the first position, with respect to the base member104and the cover member102to lock the cover member102with respect to the base member104and to break the shorting contact between the plurality of electrical terminals302and the plurality of shorting elements304.

In one or more embodiments, if the detection assembly is expected to be electrically isolated from the centralized control unit, then the rotatable ring106may be rotated to the second position. Referring toFIG.9b, the rotatable ring106may be at the second position with respect to the cover member102and the base member104of the detection device100. In the illustrated embodiment, the cover member102may be coupled to the base member104to engage the plurality of pins202with the plurality of electrical terminals302. Further, owing to the rotation of the rotatable ring to the second position, the contact portion604of the each of the plurality of electrical terminals302may form the shorting contact with each of the plurality of shorting elements304. Thereby, the detection assembly of the detection device100may be electrically isolated from the centralized control unit of the fire safety system.

Further, in the second position of the rotatable ring106, the plurality of engaging portions804may slide away from the plurality of locking slots206of the cover member102to unlock the cover member102with respect to the base member104. In the second position, the plurality of engaging portions804may disengage from the plurality of locking slots206of the cover member102. The rotatable ring106may allow the movement of the cover member102with respect to the base member104, thereby allowing the removal of the cover member102from the base member104.

Owing to the removal of the cover member102from the base member104, the plurality of pins202may be released from the pair of clamps614of the plurality of electrical terminals302. This results in an electrical disconnection between the detection device100and the centralized control unit. In particular, the rotatable ring106may be rotated, to the second position, with respect to the base member104and the cover member102to unlock the cover member102with respect to the base member104and to form the shorting contact between the plurality of electrical terminals302and the plurality of shorting elements304.

As would be gathered, the disclosure offers the detection device100for the fire safety system. As explained earlier, the detection device100may include the rotatable ring106adapted to be rotated with respect to the base member104and the cover member102of the detection device100. Based on the rotation of the rotatable ring106, the detection device100may be electrically isolated from the centralized control panel of the fire safety system. Further, based on the rotation of the rotatable ring106, the cover member102with the detection assembly may be locked or unlocked with respect to the base member104of the detection device100. Compared to the existing detection devices, the detection device100eliminates the requirement of combining a switching action of a closed continuity switch with an electrical connection of the detector assembly. For instance, in the detection device100, the detector assembly is electrically connected, and thereafter the rotatable ring106is rotated to break or form the shorting contact for electrically connecting or isolating the detector assembly.

As mentioned earlier, the rotatable ring106may be rotated to the first position to lock the cover member102with the base member104and simultaneously, break the shorting contact between the electrical terminals302and the shorting elements304to electrically connect the detector assembly of the detection device100to the centralized control panel. Therefore, in order to electrically connect the detection device100, firstly, the plurality of pins202of the detector assembly may be engaged with the plurality of electrical terminals302. Secondly, the rotatable ring106may be rotated to break the shorting contact between the electrical terminals302and the shorting elements304to electrically connect the detector assembly of the detection device100to the centralized control panel.

Similarly, the rotatable ring106may be rotated to the second position to unlock the cover member102with the base member104and simultaneously, form the shorting contact between the electrical terminals302and the shorting elements304to electrically isolate the detector assembly of the detection device100to the centralized control panel. Therefore, in order to electrically isolate the detection device100, firstly, the rotatable ring106may be rotated to break the shorting contact between the electrical terminals302and the shorting elements304. Secondly, the plurality of pins202of the detector assembly may be disengaged with the plurality of electrical terminals302. By separating the action of electrical isolation and connection of the detector assembly, the overall construction of the detection device100is simplified and renders the requirements of tight tolerances to create a reliable design of the detection device100.

Further, as explained earlier, the rotation of the rotatable ring106may lock or unlock the cover member102with respect to the base member104. This substantially simplifies the process of detaching or attaching the detector assembly from the base member104of the detection device100. Further, this ensures that the cover member102is unlocked from the base member104when the shorting contact is formed between the electrical terminals302and the shorting elements304. Therefore, the detection device100of the disclosure is compact, efficient, durable, flexible in implementation, cost-effective, light-weight, and convenient.

While specific language has been used to describe the subject matter, any limitations arising on account thereto, are not intended. As would be apparent to a person in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein. The drawings and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment.