HK1112317A - Sounder - Google Patents

Description

Sound generator

Technical Field

The present invention relates to a sounder provided on an alarm device, which generates an alarm sound according to an alarm signal outputted from the alarm device when the alarm device detects the generation of an abnormal phenomenon (e.g., a fire) and outputs the alarm signal, so as to notify the occurrence of the abnormal phenomenon.

Background

In order to prevent the life of buildings and people from being threatened by fire, an effective method is to install a fire detector to sense the initial generation of fire and to issue an alarm. To achieve this, when a fire is detected in a monitoring area where the fire detector is installed, the fire detector outputs an alarm signal to trigger an alarm bell or an alarm speaker to emit an alarm sound, thus notifying the occurrence of the fire.

However, in a building having a high sound insulation effect, such as a hotel, even when an alarm bell installed in a passageway rings, guests in the room cannot easily hear the alarm sound. To solve this problem, a sound generator (base sound generator) has been put into practical use which can be directly installed with a fire detector in a room and generates an alarm sound according to an alarm signal output from the fire detector. For example, U.S. patent No. 6,362,726 discloses a base sounder which can be provided with a fire alarm system, and according to the design of the base sounder, alarm sound is generated in a room where a fire detector is installed, thereby achieving a safer and more definite fire alarm effect.

The above-described conventional base sounder is constructed as follows. FIG. 21 is a vertical cross-sectional view of a conventional base sounder mounted to a ceiling surface. As shown in fig. 21, a conventional base sounder 100 is mounted to a ceiling surface 102 by a mounting base 101. And the fire detector 103 is connected to the lower end of the base sounder 100. Electronic components such as the circuit carrier 104 and the piezoelectric element 105 are disposed inside the base sounder 100. The base sounder 100 generates and displays an alarm sound using the piezoelectric element 105. The base sounder 100 has a threaded hole 106 therethrough, and the base sounder 100 is secured to the mounting base 101 by a long screw 107 passing through the threaded hole 106 and locking into the mounting base 101. The fire detector 103 is fixed to the base sounder 100 by its upper end being latched into the lower end of the base sounder 100.

The wiring holes 108, 109 are formed through and near the center of the plane of the mounting base 101 and base sounder 100, respectively (plane refers to a surface that is nearly parallel to the ceiling). The wires 110 are routed out of the ceiling surface 102 and drawn through the wiring holes 108, 109 to the lower surface of the base sounder 100. The lead 110 is threaded through the connector 111 provided by the screw used to connect to the bottom surface of the base sounder 100. The connector 111 is electrically connected to the circuit carrier 104 to supply power to the electronic components of the base sounder 100. The connector 112 of the fire detector 103 is electrically connected to the connector 111 to supply power to the electronic components of the fire detector 103.

Disclosure of Invention

Problems to be solved by the invention

However, the conventional base sounder has many inconveniences in the fixed structure.

For example, in the conventional base sounder mounting manner, the mounting base is first fixed to a ceiling or the like mounting surface, and then the base sounder is fixed to the mounting base. In other words, if the fire detector is installed separately without installing the base sounder, the installation base of the base sounder must be replaced with an installation base dedicated to installing the fire detector, the installation base of the fire detector is first fixed on the installation surface, and then the fire detector is fixed on its dedicated installation base.

As described above, in the conventional application, the mounting base for the dedicated mounting base sounder is different from the mounting base for the dedicated mounting of the fire detector. Different installation methods also result in complicated installation procedures and the possibility of errors occurring. Also because of the different mounting structures, when the base sounder needs to be additionally arranged at the position where the fire detector is already installed, the mounting base of the fire detector must be replaced by the mounting base of the base sounder, so that the difficulty in mounting the base sounder is increased. In addition, since the base sound generator is fixed to the mounting base by screws, tools such as screws and screwdrivers must be prepared for mounting, which is considerably complicated and inconvenient.

In the structure of the conventional base sounder, the lead wire for supplying power is passed through the base sounder, and therefore, the through hole of the lead wire needs to be formed in the vicinity of the center position of the plane of the base sounder. The above reasons make the piezoelectric element for emitting sound unable to be arranged near the center of the plane of the base sounder, and also cause the sound unable to be emitted from the base sounder uniformly, increasing the difficulty of improving the alarm effect.

The present invention has been made in view of the above problems, and provides a sounder for increasing efficiency of an installation procedure and an alarm output to solve various inconveniences due to a fixed structure.

Effect of the invention

According to the sounder of the present invention, the device-side output connector is connected to the base-side connector of the mounting base, so that the sounder can be structurally and electrically connected to the mounting base. Therefore, tools such as screws and screwdrivers are not required to install the sounder. The installation of the sounder becomes simpler.

According to the sounder of the present invention, the second device-side output connector is connected to the detector-side connector of the alarm device, so that the alarm device can be structurally and electrically connected to the sounder. Thus, tools such as screws and screwdrivers are no longer required to install the alarm device. The installation of the alarm device becomes simpler.

According to the sounder of the present invention, the connectors are connected by sandwiching the metal sheets thereof, and the metal sheets of the connectors are all disposed in a direction parallel to the mounting surface. Therefore, even if the weight of the sounder and the alarm device is applied in a direction vertical to the mounting surface, the metal sheet can support, thereby providing the connecting function of the sounder and the alarm device in structure and electrical property.

According to the sounder of the present invention, the position and shape of the device-side output connector of the sounder are similar to the position and shape of the base-side connector of the mounting base. Meanwhile, the position and shape of the output connector at the second device end of the sounder are similar to those of the detector end connector of the alarm device, so that the connection mode of the sounder to the mounting base, the connection mode of the alarm device to the mounting base and the connection mode of the alarm device to the sounder are all universal. In other words, any sounder and alarm device can be easily secured to the same mounting base. For example, when the alarm device is mounted on the mounting base and the sounder is to be re-mounted, the mounting procedure becomes simpler, and the mounting base does not need to be replaced.

Drawings

FIG. 1 is a schematic diagram of components of a base sounder and fire detector according to a first embodiment of the invention;

FIG. 2 is an exploded view of the base sounder and other associated components shown in FIG. 1;

FIG. 3 is an enlarged schematic view of the mounting base from below;

FIG. 4 is an enlarged schematic view of the mounting base looking down from above;

FIG. 5 is an enlarged schematic view of the base sounder as viewed from below;

FIG. 6 is an enlarged schematic view of the base sounder looking down at the top;

FIG. 7 is an exploded schematic view of the base sounder;

FIG. 8 is an enlarged schematic view of the sounder body looking down from above;

FIG. 9 is an exploded schematic view of the sounder body shown in FIG. 8;

FIG. 10 is a vertical cross-sectional view of the base sounder, mounting base and fire detector;

FIG. 11 is a bottom view of the base cover of FIG. 7;

FIG. 12 is a schematic view of the fire detector viewed from above;

fig. 13 is an enlarged schematic view of the connecting heads before they are connected to each other;

fig. 14 is an enlarged schematic view of the connectors after they are connected to each other;

FIG. 15 is a schematic view of a wall sounder and other related components according to a second embodiment of the invention;

FIG. 16 is an exploded view of the wall sounder and other associated components shown in FIG. 15;

FIG. 17 is a schematic view of the wall sounder looking inward and outward;

FIG. 18 is a schematic view of a base indicator and other related components of a third embodiment of the present invention;

FIG. 19 is an exploded view of the base indicator and other associated components shown in FIG. 18;

FIG. 20 is a schematic view of the base indicator looking from above; and

FIG. 21 is a vertical cross-sectional view of a conventional base sounder and other related components mounted to a ceiling surface.

Detailed Description

Embodiments of the present invention are described below, each of which provides a sound generator connected to an alarm device for sensing an abnormal phenomenon in a monitoring area. When the alarm device detects the abnormal phenomenon, the sounder receives the signal output by the alarm device and sends out various preset alarm sounds.

The alarm device can detect different targets according to different detection purposes. For example, a fire detector is used to detect a fire source, a gas detector is used to detect gas leakage, and a composite fire and gas detector is used to simultaneously detect two targets, a fire source and a gas.

The alarm emitted by the sounder can also be in different forms, and the sounder can emit alarm sound or alarm display. In the case of sounding an alarm, there are different options for the type of alarm sound and the manner in which the alarm sound is generated. For example, the speaker and piezoelectric assembly may be used to emit a beep, while the speaker and voice combination assembly may emit voice synthesized information. In the case of a warning display, there are different options for the type of warning display and the manner in which the warning light is generated. For example, Light Emitting Diodes (LEDs) or semiconductor lasers may be used to emit Light and flash. Such sounders may be mounted to different mounting surfaces, such as a ceiling or wall surface.

The sounder of each embodiment has a unique feature on the fixed structure for improved installation efficiency. Generally, the same structure is used for structural and electrical connections between the mounting base and the sound generator, between the sound generator and the fire detector, and between the mounting base and the fire detector. Thus, the fire detector and the sound generator are coupled to each other in the same manner as the sound generator and the mounting base are coupled to each other. That is, the fire detector may be directly coupled to the mounting base. The generalization of the installation mode enables the fire detector to be directly installed on the installation base independently in the installation procedure, and also can be sequentially installed on the installation base by the sounder and the fire detector.

The improved mounting structure further increases the effectiveness of the sounder to output an alarm. Generally, the flat central position of the sound generator eliminates the need for a perforation for passing a wire. In contrast, the sound source and the light element generating device can be placed at the center of the plane, thereby improving the efficacy of the alarm. The unique features of the fastening structure will be explained in detail in each of the following examples.

The first embodiment:

first, a first embodiment of the present invention will be explained as follows. The sounder (hereinafter referred to as a base sounder) of the first embodiment is connected to a fire detector serving as an alarm device, and generates an alarm according to a signal output from the fire detector.

The configuration of each component is explained first. FIG. 1 is a schematic diagram of components such as a base sounder and a fire detector according to a first embodiment of the present invention. FIG. 2 is an exploded view of the base sounder of FIG. 1 and other associated components. As shown, a mounting base 10 is fixed to the ceiling surface 1 (i.e., the mounting surface), and a base sound generator 20 is mounted to a lower end of the mounting base 10. A fire detector 30 is connected to the lower end of the base sounder 20. In other words, the base sounder 20 is sandwiched between the mounting base 10 and the fire detector 30. In the first embodiment, for convenience of explanation, the direction toward the ceiling is upward, and the direction toward the ceiling is downward. When other surfaces are used as the installation surface instead of the ceiling, the upward direction is a direction toward the installation surface and the downward direction is a direction away from the installation surface.

Fig. 3 is an enlarged schematic view of the mounting base 10 as viewed from below. Fig. 4 is an enlarged schematic view of the mounting base 10 (omitting parts such as screws and wires) viewed from above. The mounting base 10 is a nearly circular disk and includes a pair of screws 11a, a wiring hole 12 and a plurality of base end connectors 13. Each of the screw holes 11 is a through hole for allowing the mounting base 10 to be fixed to the ceiling surface 1. When the screws 11a are inserted into the screw holes 11 and locked into the ceiling surface 1, the mounting base 10 is fixed to the ceiling surface 1. The threaded hole 11 is an elongated hole along which the mounting base 10 can be easily adjusted in position to be fixed to the ceiling surface 1. The wiring hole 12 is located close to the center of the plane of the mounting base 10. The wires 2 coming out from the ceiling surface 1 can easily be passed through the wiring holes 12 and pulled to the base end connectors 13. The core wire of the end of the lead 2 is fixed to the mounting base 10 by a screw 13f and is electrically connected to the base end connector 13.

The base end connector 13 is an electrical connection unit for receiving power supplied from the lead 2 and inputting or outputting signals to the base sound generator 20 or the fire detector 30. In addition, the base end connector 13 is also a structural connection unit for providing structural connection between the mounting base 10 and the base sound generator 20, or between the mounting base 10 and the fire detector 30. Specifically, the base end connector 13 has two metal sheets 13a and 13b stacked on each other in the vertical direction, and the metal sheets 13a and 13b are almost parallel to the ceiling surface 1 (the arrangement direction of the metal sheets 13a and 13b is almost perpendicular to the removal direction of the base sound generator 20). The base end connector 13 is fixed to the lower surface of the mounting base 10 by screws 13 c.

The device-side output connector 23 of the base sounder 20, discussed later, may have a metal plate 23a sandwiched between metal plates 13a and 13b to structurally and electrically connect the base sounder 20 to the mounting base 10. Similarly, the metal sheets 32a of the alarm device end connector 32 of the fire detector 30, which will be discussed later, can be sandwiched by the metal sheets 13a and 13b by the above-mentioned clamping manner of the metal sheets 13a and 13b, so that the fire detector 30 is structurally and electrically connected to the mounting base 10. It is noted that the distal end 13d of the free end of the metal piece 13a is slightly bent downward so that the metal pieces 23a, 32a can be smoothly inserted between the metal pieces 13a and 13 b. The tip 13e of the free end of the metal piece 13b is biased toward the metal piece 13a for providing a resilient reaction force to enable the metal pieces 13a, 13b to be securely connected with the metal pieces 23a, 32 a. This particular connection will be discussed later.

The base sounder 20 will be explained next. Fig. 5 is an enlarged schematic view of the base sounder as viewed from below, fig. 6 is an enlarged schematic view of the base sounder as viewed from above, and fig. 7 is an exploded schematic view of the base sounder. As shown, the base sounder 20 generally comprises a base cover 21 and a sounder body 22.

The base cover 21 is used to cover the mounting base 10, to improve the appearance and sound characteristics, to prevent dust, and to prevent the mounting base 10 from being exposed to the outside. As shown in fig. 6, the base cover 21 is a hollow cup and has a diameter slightly larger than that of the mounting base 10 so that the mounting base 10 can be completely covered by the base cover 21.

The device-side output connectors 23 are disposed on the base cover 21, and each device-side output connector 23 is an electrical connection unit for receiving power from the mounting base 10, outputting signals from the mounting base 10, and inputting signals to the mounting base 10. The device-side output connector 23 is also a structural connecting unit for structurally connecting the base cover 21 to the mounting base 10. Specifically, the device-side output connector 23 is a metal piece 23a almost parallel to the ceiling surface 1. The metal piece 23a is slightly higher than the upper surface of the base cover 21 and is fixed to the base cover 21 by screws 24. The metal plate 23a can be sandwiched by the metal plates 13a and 13b of the base end connector 13 of fig. 3, so that the base sound generator 20 can be structurally and electrically connected to the mounting base 10 through the metal plate 23 a. This particular connection will be discussed later.

The sounder body 22 will be explained next. Fig. 8 is an enlarged schematic view of the sounder body as viewed from above, fig. 9 is an exploded schematic view of the sounder body of fig. 8, and fig. 10 is a vertical sectional view of the base sounder, the mounting base, and the fire detector. The sounder body 22 contains the main electronic and mechanical components of the base sounder 20. It should be noted that the sounder body 22 is a hollow disc-shaped body composed of an upper housing 25a and a lower housing 25b, and the diameter of the sounder body 22 is almost the same as the diameter of the fire detector 30 (as shown in fig. 1). The circuit carrier 26 is accommodated in the sounder body 22. The electronic components of the base sounder 20, such as a central control unit and a power control unit (not shown), are disposed on the circuit carrier 26. A piezoelectric element 27 for emitting an alarm sound is provided near the center of the plane above the sounder body 22. The piezoelectric element 27 is electrically connected to the circuit carrier 26. When a voltage is applied to the piezoelectric element 27, the piezoelectric element 27 expands and contracts to generate an alarm sound.

Referring to fig. 5 and 7, the second device-side output connector 28 is disposed on the lower surface of the sounder body 22. The second device-side output connector 28 is an electrical connection unit for supplying power to the fire detector 30 (shown in fig. 1), and for outputting signals from the fire detector 30 and inputting signals to the fire detector 30. The second device-side output connector 28 is also a structural connection unit for structurally connecting the sounder body 22 to the fire detector 30. The position and shape of the second device end output connector 28 of the sounder body 22 approximates the position and shape of the base end connector 13 of the mounting base 10. That is, the second device-side output connector 28 has two metal pieces 28a and 28b stacked on each other in the vertical direction, and the metal pieces 28a and 28b are almost parallel to the ceiling surface 1. The second device-side output connector 28 is fixed to the lower surface of the sounder body 22 by screws 28 c. The metal plate 32a of the detector end connector 32 of the fire detector 30, which will be discussed later, may be sandwiched by the metal plates 28a and 28b so that the fire detector 30 is structurally and electrically connected to the base sounder 20. In particular, the tip 28d of the free end of the metal piece 28a is slightly bent downward so that the metal piece 32a can be smoothly inserted between the metal pieces 28a and 28 b. The end 28e of the free end of the metal piece 28b is slightly bent to be located between the metal pieces 28a and 28 b. Since the end 28e of the metal piece 28b has an elastic reaction force to bias the end 28e toward the metal piece 28a, the metal pieces 28a, 28b can be securely connected to the metal piece 32 a. This particular connection will be discussed later.

The locking mechanism between the base cover 21 and the sounder body 22 will be discussed next. Fig. 11 is a bottom view of the base cover of fig. 7. As shown in fig. 7 to 11, a plurality of hollow cylindrical locking holes 21a and 21b facing the sounder body are provided in the lower surface of the base cover 21. Part of the locking hole 21a is used for positioning during manufacture, and may be used as a pumping hole to pump out water dripping from the ceiling and accumulated on the base cover 21, and a lock release mechanism for detaching the mounting base may be inserted.

The other locking holes 21b are located at corresponding positions of the device-side output connector 23 of fig. 6 and the second device-side output connector 23 of fig. 7. On the other hand, as shown in fig. 8 to 11, the screw 22a of the sounder body 22 is electrically connected to the circuit carrier 26, and the screw 22a passes through the upper housing 25a and extends upward. The screws 22a can be inserted into the locking holes 21b of fig. 7, and each screw 22a is electrically connected to the corresponding device-side output connector 23. The screws 28c are used to electrically connect the second device-side output connectors 28 to the metal sheets 26a extending from the circuit carrier 26. In this way, the device-side output connector 23, the screw 22a and the second device-side output connector 28 are electrically connected to each other. Thus, the lead 2 shown in fig. 2 and 3 is no longer required to pass through the base sounder 20, and a through hole for a pull cord in the base sounder 20 is no longer required. Therefore, the degree of freedom in the placement of the piezoelectric element 27 and other parts is correspondingly increased.

The sound effect configuration of the base sounder 20 will be discussed next. As shown in fig. 10, the sounder body 22 has a resonance space 27a therein, and the piezoelectric element 27 is located in the resonance space 27 a. The resonance space 27a can amplify the alarm sound generated by the piezoelectric element 27. The resonance space 27a communicates with the sound outlet hole 25 c. The sound emitting hole 25c is used to emit the alarm sound generated by the piezoelectric element 27 to the resonance space 27b between the base cover 21 and the sounder body 22, and the alarm sound is further amplified by the resonance space 27 b. In other words, the cross section of the resonance space 27b is gradually enlarged from the center to both sides, and the alarm sound is amplified by this horn effect and emitted from the resonance space 27b to the outside of the base sounder 20.

The outer edge 21d of the base cover 21 has a diameter gradually increasing toward the ceiling surface 1 and forms a smoothly inclined surface up to the ceiling surface 1. The angle formed between the outer edge 21d and the ceiling surface 1 is designed so that the alarm sound transmitted to the ceiling surface 1 along the outer edge 21d is reflected back to the monitoring area with high efficiency. Therefore, the alarm sound reaches the outer edge 21d along the outer surface of the base cover 21, is smoothly guided to the ceiling surface 1 along the outer edge 21d, and is reflected back to the monitoring area with high efficiency.

According to the above structure, the base sounder 20 no longer requires a through hole for passing the lead wire 2. Therefore, the resonance space 27a, the piezoelectric element 27 and the sound emission hole 25c can be provided in the center area of the plane of the base sounder 20. The resonance space 27b serves to uniformly diffuse the sound at the center of the plane of the base sounder 20 to the outside. The alarm sound can be amplified and diffused uniformly in a two-dimensional space, and the sound effect is further improved.

The fire detector 30 will be described next. The fire detector 30 is substantially identical except for a few components that are different from conventional fire detectors. Therefore, the same portions as those of the conventional fire detector will be omitted from description. As shown in fig. 1, the upper housing 31 of the fire detector 30 is a hollow cup and has a diameter similar to that of the sounder body 22 of the base sounder 20. In a state where the fire detector 30 is fixed to the base sounder 20, the outer sides of the fire detector 30 and the base sounder 20 can be regarded as almost the same plane, and thus there is uniformity in appearance.

FIG. 12 is a schematic view of the fire detector viewed from above. As shown in fig. 12, the detector-end connector 32 is disposed above the fire detector 30. The detector-side connector 32 is an electrical connection unit for supplying power to the fire detector 30 and for outputting or inputting signals to the base sounder 20 or the mounting base 10. The detector end connector 32 is also a structural connection unit for structurally connecting the fire detector 30 to the base sounder 20 or the mounting base 10. Therefore, the shape and position of the detector-side connector 32 of the fire detector 30 are similar to those of the device-side output connector 23 of the base cover 21 of fig. 6. Specifically, the detector-end connector 32 is formed of a metal plate 32a that is almost parallel to the ceiling surface 1. The metal piece 32a is slightly higher than the upper surface of the fire detector 30 and is fixed to the fire detector 30 by screws 32 b. The metal plate 32a may be sandwiched by the metal plates 28a and 28b of the second device-side output connector 28 of fig. 7, so that the fire detector 30 may be structurally and electrically connected to the base sounder 20 through the metal plate 32 a. Similarly, the metal plate 32a can also be sandwiched by the metal plates 13a and 13b of the base end connector 13 of fig. 3, so that the fire detector 30 can also be structurally and electrically connected to the mounting base 10 through the metal plate 32 a. This particular connection process will be discussed later.

The order of installation of each part will be described below. First, as shown in fig. 3, the mounting base 10 is abutted against the ceiling surface 1 from below to above, and the screws 11a are inserted into the screw holes 11 and locked to the ceiling surface 1 to fix the mounting base 10 to the ceiling surface 1. The lead wires 2 coming out from the ceiling surface 1 pass through the wiring holes 12 and are fixed to the mounting base 10 by screws 13 f.

Next, the base sounder 20 will be installed. As shown in fig. 2, the base cover 21 and the sounder body 22 are combined with each other to form the base sounder 20, and the base sounder 20 is mounted on the mounting base 10 from the bottom up. Fig. 13 is an enlarged schematic view of the connecting heads before they are connected to each other. As shown in fig. 13, the metal pieces 13a, 13b of the base-end connector 13 are parallel to the metal pieces 23a of the device-end output connector 23 (both parallel to the ceiling surface 1). Therefore, when the base sounder 20 is rotated by a certain angle in the direction of the ceiling surface 1, the metal piece 23a will be inserted and sandwiched between the metal pieces 13a and 13b as shown in fig. 14. In the clamped state, the device-side output connector 23 is latched to the base-side connector 13. Therefore, the device-side output connector 23 and the base-side connector 13 can be conducted to each other, so that the base sounder 20 can be electrically connected to the mounting base 10. Meanwhile, since the metal sheets 13a, 13b and the metal sheet 23a are all parallel to the ceiling surface 1 (horizontal direction), the base end connector 13 can support the weight of the base sound generator 20 in the vertical direction, that is, the mounting base 10 can support the base sound generator 20 without using screws or other fixing components. When the base sounder 20 is rotated in a direction opposite to the mounting step, the base sounder 20 can be easily detached from the mounting base 10.

Similarly, the manner in which the fire detector 30 of FIG. 2 is mounted to the base sounder 20 is similar to the manner in which the base sounder 20 is mounted to the mounting base 10. In other words, the fire detector 30 is rotated a certain angle from below to above and in the direction of the ceiling surface 1 to be mounted on the base sounder 20. The metal piece 32a of the detector-end connector 32 of fig. 12 is rotated in the above-mentioned direction to be inserted and held between the metal pieces 28a and 28b of the second device-end output connector 28 of fig. 7. In the clamped state, the detector-side connector 32 is latched to the second device-side output connector 28. Thus, the detector-side connector 32 and the second device-side output connector 28 are electrically connected to each other, so that the fire detector 30 is electrically connected to the base sounder 20. Meanwhile, since the metal pieces 28a, 28b and the metal piece 32a are parallel to the ceiling surface 1 (horizontal direction), the second device-side output connector 28 can support the weight of the fire detector 30 in the vertical direction, that is, the base sounder 20 can support the fire detector 30 without using fixing members such as screws. When the fire detector 30 is rotated in a direction opposite to the installation process, the fire detector 30 can be easily detached from the base sounder 20.

On the other hand, in the case where the fire detector 30 is mounted to the mounting base 10 alone and the base sound generator 20 is omitted, the mounting manner is similar to that of mounting the fire detector 30 to the base sound generator 20. In other words, after the mounting base 10 is mounted on the ceiling surface 1, the fire detector 30 is rotated by a specific angle from the bottom up and in the direction of the ceiling surface 1 to be mounted on the mounting base 10. In the above state, the metal pieces 13a, 13b of the base end connector 13 and the metal piece 32a of the detector end connector 32 are parallel to each other. Therefore, when the fire detector 30 is rotated by a certain angle in the direction of the ceiling surface 1, the metal piece 32a is inserted and held between the metal pieces 13a and 13 b. In the clamped state, the detector end connector 32 is latched to the base end connector 13. Therefore, the detector-side connector 32 and the base-side connector 13 can be electrically connected to each other, so that the fire detector 30 is electrically connected to the mounting base 10. Meanwhile, since the metal pieces 13a, 13b and the metal piece 32a are parallel to the ceiling surface 1 (horizontal direction), the base end connector 13 can support the weight of the fire detector 30 in the vertical direction, that is, the mounting base 10 can support the fire detector 30 without using fixing members such as screws. When the fire detector 30 is rotated in a direction opposite to the installation process, the fire detector 30 can be easily detached from the installation base 10.

Similarly, the fire detector 30 can be mounted to the base sounder 20 first, and the combination then mounted to the mounting base 10. Alternatively, the base sounder 20 may be mounted directly and separately to the mounting base 10, and the fire detector 30 is omitted, in which case the base sounder 20 may be mounted to the mounting base 10 before the base sounder 20 is covered by a cover (not shown) to cover the second device-side output connector 28, etc., for safety and aesthetic reasons. When the fire detector 30 is separately installed on the high installation base 10, a scooper fixed to a long pole can be used to perform the installation and removal. The scooper may be used to grab the fire detector 30 and the base sounder 20. By taking the dip apparatus, the fire detector 30 can be detached first, and then the base sounder 20 and the fire detector 30 can be installed in sequence. Therefore, each device can be installed and detached in a simple rotating mode, and the operation at a high place is more convenient.

As described above, according to the first embodiment of the present invention, each part can be sequentially mounted in a similar manner. And thus have a common installation program. In addition, the mounting base 10 can be used with the fire detector 30 or the base sounder 20, which increases the convenience of installation. Furthermore, the base sounder 20 and the fire detector 30 are installed without using tools such as screws and screwdrivers, thereby simplifying the installation process.

Second embodiment:

next, a second embodiment of the present invention will be explained as follows. The second embodiment relates to a wall-mounted sounder (hereinafter referred to as a wall-mounted sounder) which generates an alarm sound according to a control signal of a receiving unit for receiving an output signal of a fire detector located at another position. The same parts as those of the first embodiment of the present invention will not be described in detail below, and the same names and numbers will be used for the same parts as those of the first embodiment, and will not be explained in more detail.

Fig. 15 is a schematic view of a wall surface sounder according to a second embodiment of the present invention, and fig. 16 is an exploded schematic view of the wall surface sounder of fig. 15. As shown, the mounting base 10 is fixed to a mounting surface of the wall surface 3, and the wall surface sound generator 40 is fixed to the mounting base 10. In the second embodiment, for convenience of explanation, the direction toward the wall surface 3 is inward, and the direction toward the wall surface 3 is outward. When other surfaces are used as the mounting surface in place of the wall surface 3, inward is a direction toward the mounting surface and outward is a direction away from the mounting surface.

The mounting base 10 is the same as described in the first embodiment, and the base end connector 13 is provided on the outer surface. The lead 2 extending out of the wall 3 is connected to the base end connector 13.

The piezoelectric element (not shown) of the wall surface sound generator 40 for emitting the alarm sound is disposed in the housing 41, and the outer edge of the housing 41 can cover the entire mounting base 10. The outer part 42 of the housing 41 has a loudspeaker-like shape with a larger diameter towards the outside. The alarm sound emitted from the piezoelectric element is guided to the outside 42 of the housing 41 through an opening (not shown), amplified, and played.

Fig. 17 is a schematic view of the wall sounder looking from the inside out. The location and shape of the device side output connector 43 of the wall sound generator 40 is similar to the location and shape of the device side output connector 23 of the base sound generator 20 of the first embodiment. As shown in fig. 17, the device-side output connector 43 is formed of a metal piece 43a almost parallel to the wall surface 3. Therefore, when the wall surface sound generator 40 is rotated by a specific angle along the direction of the wall surface 3, the metal plate 43a will be inserted and clamped between the metal plates 13a and 13b, thereby fixing the wall surface sound generator 40 on the mounting base 10. When the wall surface sound generator 40 is rotated in a direction opposite to the installation step, the wall surface sound generator 40 can be easily detached from the installation base 10.

Conventionally, a mounting base (not shown) specially used for mounting the wall surface sound generator 40 must be fixed on the wall surface, and then the wall surface sound generator 40 is fixed on the mounting base. Specifically, the lead 2 extending out from the wall surface 3 passes through a dedicated mounting base and is connected to a connector on the inner surface of the wall surface sound generator 40. Then, a long screw is inserted into the wall surface sound generator 40 from the outside and locked into the mounting base to fix the wall surface sound generator 40 to the mounting base. On the other hand, according to the embodiment of the present invention, both the base sounder 20 and the fire detector 30 in the first embodiment can be mounted on the mounting base 10, and in the second embodiment, the wall sounder 40 is also mounted in a manner similar to that of the base sounder 20 and the fire detector 30. Therefore, the wall sound generator 40, the base sound generator 20, and the fire detector 30 are commonly installed. The wall sound generator 40, the base sound generator 20 and the fire detector 30 can be easily interchanged. Because the wall surface sounder 40 is installed without using tools such as screws and screwdrivers, the installation procedure is further simplified.

The third embodiment:

next, a third embodiment of the present invention will be explained as follows. In a third embodiment, another sounder is mounted to a base sounder fixed to the ceiling. A third embodiment relates to a sounder (hereinafter referred to as a base indicator) that displays an alarm based on an output signal of a fire detector. The same parts as those of the first embodiment of the present invention will not be described in detail below, and the same names and numbers will be used for the same parts as those of the first embodiment, and will not be explained in more detail.

Please refer to fig. 18 and fig. 19. Fig. 18 is a schematic view of a base indicator of a third embodiment of the present invention, and fig. 19 is an exploded schematic view of the base indicator of fig. 18. The mounting base 10 is first fixed to the ceiling surface 1, and then the base sounder 20 is mounted below the mounting base 10. The base indicator 50 is mounted below the base sounder 20. The mounting base 10, the base sounder 20 and the fire detector 30 are the same as those of the first embodiment of the present invention, and thus, will not be described further.

The base indicator 50 includes a light emitting diode (not shown) as a light source, which is located within a cylindrical housing 51. The cylindrical housing 51 and the base sounder 20 have similar outer diameters. A transparent lens 52 surrounds the outer side of the cylindrical housing 51. The light generated by the led is emitted through the transparent lens 52.

FIG. 20 is a schematic view of the base indicator looking from the top down. As shown in fig. 20, the device-side output connector 53 is disposed on the upper surface of the base indicator 50 and is similar in position and shape to the device-side output connector 23 of the base sounder 20 of the first embodiment. The device-side output connector 53 has a metal plate 53 a. The metal sheet 53a is almost parallel to the ceiling surface 1. The device-side output connector 53 is rotated from bottom to top and along the direction of the ceiling surface 1 by a specific angle to be mounted on the base sounder 20. When the base indicator 50 is rotated a specific angle in the direction of the ceiling surface 1, each of the metal plates 53a will be inserted and clamped between the metal plates 28a and 28b of the second device-side output connector 28, thereby fixing the base indicator 50 to the base sounder 20. The base indicator 50 may also be directly mounted to the mounting base 10 by the above-described mounting method, and the mounting base sounder 20 may be omitted, as in the first embodiment in which the fire detector 30 is directly mounted to the mounting base 10. When the base indicator 50 is rotated in a direction opposite to the installation procedure, the base indicator 50 can be easily removed from the base sounder 20.

As shown in fig. 19, a second device-side output connector 54 is provided on the lower surface of the base indicator 50, similar in location and shape to the second device-side output connector 28 of the base sounder 20 of the first embodiment. The second device-side output connector 54 is composed of metal pieces 54a and 54 b. The metal sheets 54a and 54b are almost parallel to the ceiling surface 1. The fire detector 30 is rotated at a certain angle from the bottom up and in the direction of the ceiling surface 1 to be mounted on the base indicator 50. When the fire detector 30 is rotated by a specific angle in the direction of the ceiling surface 1, each of the metal pieces 32a is inserted and held between the metal pieces 54a and 54b of the second device-side output connector 54, thereby structurally and electrically connecting the fire detector 30 to the base indicator 50. When the fire detector 30 is rotated in a direction opposite to the installation process, the fire detector 30 can be easily detached from the base indicator 50.

Conventionally, the base indicator 50 is directly fixed to the mounting base 10 like the fire detector 30, so that the base indicator 50 cannot be mounted with the fire detector 30. However, in the third embodiment, the fire detector 30 may be mounted below the base indicator 50, just as the fire detector 30 of the first embodiment is mounted on the base sounder 20. According to the embodiment of the present invention, both the base sounder 20 and the fire detector 30 in the first embodiment can be mounted on the mounting base 10. Similarly, the base indicator 50 can also be mounted to the mounting base 10 and the base sounder 20. Therefore, the mounting method of the base indicator 50, the base sounder 20, and the fire detector 30 is general. The base indicator 50, the base sounder 20 and the fire detector 30 can be easily interchanged. In addition, because the wall surface sounder 40 is installed without using tools such as screws and screwdrivers, the installation procedure is further simplified.

The foregoing is directed to embodiments of the present invention, and other embodiments may be derived from the above-described embodiments, with modifications and alterations to the structure and method being selective. Examples of modifications are described below.

The structure and method of each embodiment can be applied to other embodiments. For example, in the first and third embodiments, the fire detector 30 is disposed at the lowermost portion to increase sensing capability. In order to increase the alarm effect, the fire detector 30 may be fixed to the mounting base 10, and the base sounder 20 and the base indicator 50 may be installed below the fire detector 30. In this case, the second device-side output connector 28 can be disposed on the lower surface of the fire detector 30. The various connectors of the embodiment of the invention can be applied to different detectors according to requirements, such as a heat detector and a gas detector, and various functional combinations can be realized.

The position and shape of the connection head may also be different from those of the above-described embodiments. For example, the connectors may be connected to each other by a plug-in connector connected to the household plug, and a receiving connector detachably mated with the plug-in connector. In each embodiment, each portion can be structurally and electrically connected by a connector. However, the connection method of the present invention can be used only for electrical connection, and the structural connection is realized by using a conventional lock screw method.

The problems to be solved and the effects provided by the present invention are not limited to the above-described matters. The present invention can also solve the problems not described above and provide effects not described above. The present invention can also solve only some of the problems described above and provide only some of the effects described above. For example, even if the connectors of each part cannot be used universally, the present invention can still improve the connection efficiency compared with the conventional method.

The structural description, the dimensional ratios, the relative positions and the thicknesses of the parts in the above-mentioned text and drawings are only used for simply describing the present invention, and are not intended to limit the scope of the present invention, and may be selectively changed unless otherwise specified.

Industrial applicability

As described above, the sounder of the present invention can generate an alarm sound according to an output signal of an alarm device. In particular, the sounder of the present invention also significantly improves the installation procedure of the sounder and the efficiency of outputting an alarm.

Claims (7)

1. An acoustic generator for generating a predetermined alarm sound in a surveillance area to notify occurrence of an abnormal phenomenon, the acoustic generator comprising:

the device end output connector is arranged on the surface of the sounder, which faces to a mounting surface, and is used for structurally and electrically connecting the sounder to a base end connector of a mounting base, and the mounting base is fixed on the mounting surface.

2. A sounder according to claim 1, wherein said sounder is adapted to be connected to an alarm device for sensing the occurrence of an anomaly within said surveillance zone, said sounder comprising:

a second device end output connector disposed on a surface of the sounder facing the alarm device, the second device end output connector for structurally and electrically connecting the sounder to the detector end connector of the alarm device, and the device end output connector being electrically connected to the second device end output connector.

3. A sounder for sounding an alarm in response to an output signal from an alarm device, the sounder being connectable to the alarm device, the alarm device being adapted to sense the occurrence of an anomaly within a surveillance zone, the sounder comprising:

a base cover fixable to a mounting base disposed on a mounting surface of the sounder; and

the output device body is fixed on the base cover, and a space between the output device body and the base cover is provided with a sound generating unit for giving out alarm sound; wherein

A device end output connector disposed on a surface of the base cover facing the mounting base for structurally and electrically connecting the sounder to the base end connector of the mounting base; and

and the second device end output connector is arranged on the surface, facing the alarm device, of the output device body and is used for structurally and electrically connecting the sounder with the detector end connector of the alarm device.

4. The sounder according to claims 1 to 3, wherein one of the base end connector and the device end output connector has a plurality of metal plates parallel to the mounting surface, and the other connector has a metal plate for being connected to each other in a sandwiched manner by the plurality of metal plates.

5. The acoustic generator according to claims 2 to 4, wherein one of the detector-end connector and the second device-end output connector has a plurality of metal plates parallel to the mounting surface, and the other connector has a metal plate for being clampingly connected to each other by the plurality of metal plates.

6. The sounder according to claims 2 to 5, wherein the position and shape of the device end output connector of the sounder approximates the position and shape of the base end connector of the mounting base; and

the position and shape of the second device end output connector of the sounder is similar to the position and shape of the detector end connector of the alarm device.

7. The sounder according to claims 2 to 6, wherein the sounder is adapted to emit an alarm sound in response to an output signal of an alarm device, the sounder being connectable to the alarm device, the alarm device being adapted to sense the occurrence of an abnormal phenomenon in a surveillance area, the sounder comprising:

a base cover fixable to a mounting base disposed on a mounting surface of the sounder;

the output device body is fixed on the base cover, and a space between the output device body and the base cover is provided with a sound generating unit for giving out alarm sound; and

a locking hole for fixing the base cover and the output device body together; wherein

The device end output connector is arranged on the surface of the base cover facing the mounting base;

the second device end output connector is arranged on the surface of the output device body facing the alarm device; and

the device end output connector and the second device end output connector are electrically connected with each other through the locking hole.