JP5882859B2 - Alarm - Google Patents

Description

  The present invention relates to an alarm device to which power is supplied from a battery.

  In a fire alarm as an example of a conventional alarm device, power supply to an internal circuit is started by connecting a battery side connector connected to a battery to a main body side connector provided in the main body of the alarm device. There are some (see, for example, Patent Document 1).

Japanese Patent No. 495446 (paragraphs 0014 to 0016, FIG. 2)

  In the fire alarm device of Patent Document 1, the connection of both connectors is ensured by fully inserting the battery side connector to the proper connection position of the main body side connector. However, depending on the installer, the battery side connector may not be fully inserted into the main body side connector, and the installation of the fire alarm may be completed with insufficient insertion. In this case, inconvenience occurs due to insufficient insertion. In Patent Document 1, this point is not taken into consideration, and there is room for improvement.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an alarm device that can eliminate insufficient insertion of a battery-side connector into a body-side connector.

The alarm device according to the present invention includes a base fixed to the installation surface, and an alarm device body fitted to the base by being rotated against the base, and is housed in the alarm device body. In the alarm device in which power is supplied to the internal circuit by connecting the battery-side connector wired to the battery to the main-unit connector provided in the alarm device main body, the base is inserted into the main-unit connector. the battery-side connector of an unsatisfactory state, have a pressing portion to be connected to the main body side connector by pressing to connect the proper position by the alarm body is rotated, the pressing surface for pressing the battery side connector in the pressing section Is constituted by a curved surface or an inclined surface, the distance of which is shorter from the main body side connector as it goes in the turning direction .

  According to the present invention, the battery side connector that is not sufficiently inserted into the main body side connector is pressed to the proper connection position by the pressing portion by the turning operation when the alarm device main body is attached to the base. Can be connected to. Therefore, insufficient insertion of the battery side connector into the main body side connector can be solved.

It is a disassembled perspective view of the fire alarm device which concerns on embodiment of this invention. It is the enlarged view which looked at the fitting part of the alarming device main body and base of the fire alarming device of FIG. 1 from the arrow A direction of FIG. It is an expansion perspective view of the insertion part of the battery side connector and main body side connector of FIG. It is a figure which shows the operation | movement at the time of inserting the battery side connector of FIG. 1 in a main body side connector. It is a figure which shows the modification 1 of FIG. It is a figure which shows the modification 2 of FIG. It is a figure which shows the modification 3 of FIG. It is a figure which shows the modification 4 of FIG. It is a figure which shows the modification 5 of FIG. It is an expansion perspective view of the insertion part of the battery side connector and main body side connector of FIG.

  FIG. 1 is an exploded perspective view of a fire alarm according to an embodiment of the present invention. In FIG. 1 and each figure to be described later, the same reference numerals denote the same or corresponding parts, which are common throughout the entire specification. Furthermore, the forms of the constituent elements appearing in the entire specification are merely examples and are not limited to these descriptions.

  A fire alarm 1 as an example of an alarm includes a base 10 and an alarm main body 20 that is detachably attached to the base 10. The base 10 is attached to an installation surface such as a ceiling or a wall to which the fire alarm 1 is attached with an attachment member such as a screw. The base 10 is a cylinder with a bottomed bottom and has a disk-shaped bottom plate 11 and a cylindrical side plate 12. A rib 13 concentrically with the side plate 12 is provided on the opposite surface 11a of the bottom plate 11 facing the alarm device main body 20 so as to protrude over the entire circumference of the side plate 12. In the rib 13, fitted portions 14 and 15 projecting outward are provided at two locations facing each other across the center of the base 10. The bottom plate 11 is further provided with a hole 16 through which a screw is passed.

  The alarm device main body 20 includes a disk-shaped intermediate plate 21, ribs 22, and side plates 23. The rib 22 is provided upright on the outer peripheral portion of the intermediate plate 21 so as to be positioned on the outer periphery of the rib 13 on the base 10 side in a state where the alarm device body 20 is attached to the base 10. The rib 22 is provided with two inverted L-shaped fitting portions 24 and 25 which are fitted to the fitted portions 14 and 15 of the base 10 so as to protrude inward. The fitting portions 24 and 25 are also provided at positions facing each other across the center of the alarm device main body 20. And when attaching the alarm main body 20 to the base 10, the alarm main body 20 is overlapped with the base 10, and the alarm main body 20 is rotated in the direction of the arrow in FIG. It is made to fit in the to-be-fitted parts 14 and 15.

2 is an enlarged view of the fitting portion between the alarm device body 20 and the base 10 of the fire alarm device 1 of FIG. 1 as viewed from the direction of arrow A in FIG.
The alarm device main body 20 is rotated in a fixed direction relative to the base 10. For example, the alarm device main body 20 is rotated clockwise with respect to the base 10 in front view, thereby fitting the alarm device main body 20. The distal ends of the joint portions 24 and 25 in the rotating direction come into contact with the fitted portions 14 and 15 of the base 10 and stop, and the alarm device main body 20 is fitted to the base 10. In addition, as described below, the fire alarm device 1 of the present embodiment can fit the alarm device body 20 to the base 10 at two fitting positions in the rotation direction.

  That is, the fitting position X where the fitted portion 14 and the fitting portion 24 are fitted and the fitted portion 15 and the fitting portion 25 are fitted, and the fitting position X of the fire alarm 1 Two fittings of the fitting position Y where the fitted part 14 and the fitting part 25 are fitted and the fitted part 15 and the fitting part 24 are fitted are shifted by 180 ° from the center. Can be fitted in position. By adopting a structure that can be fitted at two fitting positions in this way, the installer can attach the alarm device body 20 to the base 10 by a rotation operation of 180 ° at the maximum. Easy to install. Here, the number of fitting positions is two. However, for example, a plurality of fitting positions may be provided, for example, the number of fitting positions and the number of fitting parts may be three at 120 ° intervals.

  Further, the alarm plate 20 has a middle plate 21 with a battery housing portion 26 for housing the battery 30 and a battery 30 so that the battery 30 is not removed from the housing position when the battery 30 is attached to the battery housing portion 26. A holding member 27 for holding and a main body side connector 28 are provided. A substrate 40 (see FIG. 4 described later) is provided in the alarm device main body 20, and power is supplied from the battery 30 to the substrate 40 to generate an alarm in the event of a fire or a battery exhaustion alarm when the battery is exhausted. An internal circuit (not shown) that emits a light, a main body side connector 28, and the like are mounted. Then, as shown in FIG. 3A, the battery-side connector 32 provided on the lead 31 connected to the battery 30 is inserted into the main body-side connector 28 to the proper connection position, whereby the power from the battery 30 is supplied. Supplyed to the internal circuit, the fire alarm 1 is activated and enters a monitoring state. FIG. 3B shows a state in which the battery side connector 32 is inserted to the proper connection position of the main body side connector 28.

  Here, when the battery-side connector 32 is not sufficiently inserted into the main body-side connector 28, the case where the battery is not energized or the contact resistance at the connector portion is increased, and the battery is not dead, A battery low alarm may be issued. Therefore, in the present embodiment, even when the battery side connector 32 is not sufficiently inserted into the main body side connector 28, the insertion is sufficient due to the turning operation when the alarm device main body 20 is attached to the base 10. The structure can be corrected to the state.

  Hereinafter, this structure will be described in detail. First, a pressing portion 17 that can press the battery-side connector 32 by projecting the alarm main body 20 is formed on the surface 11 a of the base 10 facing the alarm main body 20. The pressing portion 17 is provided so that at least a part of the pressing portion 17 overlaps with the turning locus of the main body side connector 28 when seen in a plan view.

  Further, the pressing surface 17a that presses the battery side connector 32 in the pressing portion 17 is an inclined surface in which the distance from the main body side connector 28 becomes shorter as it goes in the turning direction. In other words, the pressing surface 17a is a rib member that increases in the direction of rotation. And the maximum height of the press part 17 is formed longer than the length between the baseplate 11 and the battery side connector 32 at the time of fitting the base 10 and the alarm main body 20 (FIG.4 (c)). reference). Thereby, the battery side connector 32 can be inserted into the main body side connector 28 to an appropriate position, and the battery side connector 32 and the main body side connector 28 can be reliably connected.

  In the present embodiment, as described above, the alarm device body 20 has a structure that can be fitted to the base 10 at two fitting positions. Also, the pressing portions 17 are provided at two places equal to the number of fitting positions so that the battery side connector 32 can be pressed.

FIG. 4 is a diagram illustrating an operation when the battery side connector of FIG. 1 is inserted into the main body side connector. 4B and 4C are plan views showing the positional relationship between the battery side connector 32 and the pressing portion 17 in FIGS. 4B and 4C.
First, (a) the battery side connector 32 is inserted into the main body side connector 28. Then, as shown in (b), the alarm body 20 is rotated in the direction of the arrow with respect to the base 10. At this time, as shown in (b), when the battery side connector 32 is not sufficiently inserted into the main body side connector 28, a part of the end 32a on the pressing portion 17 side of the battery side connector 32 is pressed. By sliding while abutting on the pressing surface 17 a of the portion 17, it is pushed down. Then, in a state where the fitting parts 24 and 25 of the alarm device main body 20 and the fitted parts 14 and 15 of the base 10 are completed, the battery side connector 32 is connected to the main body side connector as shown in FIG. It will be in the state correctly inserted to the appropriate connection position in 28. In addition, although the pressing surface 17a of the pressing part 17 seems to be a curved surface convex toward the alarm device body 20 in FIG. 1, it is actually a linear inclined surface as shown in FIG. ing.

  As described above, according to the present embodiment, the battery-side connector in a state where the insertion to the body-side connector 28 is insufficient by rotating and fitting the alarm body 20 to the base 10. 32 can be pressed to the proper connection position by the pressing portion 17 and connected to the main body side connector 28. Thus, the battery-side connector 32 can be naturally obtained only by performing a conventional mounting operation for turning and fitting the alarm body 20 to the base 10 without taking the trouble of the installer of the fire alarm 1. The shortage of plugging can be solved.

  Further, since the pressing surface 17a of the pressing portion 17 is an inclined surface whose distance from the main body side connector 28 becomes shorter in the turning direction, the battery side connector 32 is pressed toward the main body side connector 28 side. The operation can be performed smoothly.

  Further, since the same number of pressing portions 17 as the number of fitting positions are provided, the pressing operation of the battery side connector 32 by the pressing portion 17 can be functioned regardless of the fitting position.

  Further, in the attached state where the alarm device body 20 is fitted to the base 10, the battery side connector 32 is held in a state where it is pushed in by the pressing portion 17. Therefore, for example, even if an earthquake or the like occurs, it is possible to prevent inconveniences such as the battery side connector 32 being disconnected from the main body side connector 28 or the insertion state being insufficient.

  In addition, the fire alarm 1 is not limited to the structure shown in FIG. 1, You may add the following modifications. In this case, the same effect can be obtained.

(Modification 1)
In FIG. 1, the pressing portion 17 is configured by a protruding portion integrally formed on the base 10 so as to protrude from the base 10, but may be a leaf spring 18 as shown in FIG. 5. The leaf spring 18 may be screwed to the base 10. In this case, since the force which presses the battery side connector 32 is adjusted with the elastic force of the leaf | plate spring 18, it can suppress pushing too much more than necessary.

(Modification 2)
In FIG. 1, the pressing surface 17 a of the pressing portion 17 is an inclined surface, but as shown in FIG. 6, the distance from the main body side connector 28 becomes shorter as it goes in the turning direction, and the base 10 is curved toward the base 10 side. It may be a curved surface. With this structure, when the alarm device body 20 is rotated with respect to the base 10, the pressing portion 17 gradually increases in height at the initial stage of rotation and rapidly increases at the end of rotation. Sag goes up. For this reason, the operation | movement at the time of the battery side connector 32 sliding on the press surface 17a of the press part 17 can be made smooth.

(Modification 3)
Although FIG. 1 shows an example in which the battery storage unit 26 is provided on the rotation direction side when viewed from the main body side connector 28, the battery storage unit 26 may be provided on the opposite direction side to the rotation direction. In this case, as shown in FIG. 7, the lead 31 is positioned on the side opposite to the rotation direction of the battery-side connector 32 (the arrow direction in FIG. 7). That is, when the alarm device main body 20 is rotated with respect to the base 10, the main body side connector 28 or the battery side connector 32 is positioned between the battery 30 or the battery housing portion 26 and the pressing portion 17. For this reason, the lead 31 does not get in the way when the alarm device body 20 is rotated and the battery-side connector 32 slides on the pressing surface 17 a of the pressing portion 17.

(Modification 4)
As shown in FIG. 8, the battery storage unit 26 and the main body side connector 28 are accommodated so that the lead 31 does not bend when the battery 30 is stored in the battery storage unit 26 and the battery side connector 32 is inserted into the main body side connector 28. It is good also as a structure which separated the distance. In other words, the length of the lead 31 is substantially equal to the shortest distance between the battery housing portion 26 and the main body side connector 28. Also in this case, the lead 31 does not get in the way when the alarm device body 20 is rotated and the battery-side connector 32 slides on the pressing surface 17a of the pressing portion 17.

(Modification 5)
The battery-side connector 32 has a longitudinal direction along the direction in which the two leads 31 are adjacent to each other and a short direction perpendicular to the longitudinal direction. In FIG. The connector 32 is configured such that its longitudinal direction faces the rotational direction. However, the present invention is not limited to this arrangement, and as shown in FIG. 9, the short side direction of the battery-side connector 32 may be configured to face the rotation direction. FIGS. 10A and 10B show the state before and after insertion in this case.

(Modification 6)
In a state where the battery side connector 32 is inserted into the main body side connector 28, the surface facing the pressing portion 17 of the battery side connector 32 is configured to incline to the opposite side to the base 10 in the turning direction. May be. In other words, the surface of the battery-side connector 32 that faces the pressing portion 17 may be inclined so that the distance from the base 10 increases as the direction of rotation increases. Specifically, this can be realized by arranging the board 40 to be tilted in the alarm body 20 and tilting the body-side connector 28. This inclination is preferably an inclination along the inclination of the pressing surface 17a of the pressing portion 17. By adopting such a structure, the entire battery side connector 32 inserted into the main body side connector 28 is inclined, and the contact portion with the pressing surface 17a becomes surface contact, thereby further smoothing the sliding operation. I can expect that.

  In addition, although demonstrated as a separate modification above, it is good also as a structure which combined these all or one part.

  In the present embodiment and the modification, the fire alarm 1 has been described as an example of the alarm, but other alarms such as a gas leak alarm may be used.

  DESCRIPTION OF SYMBOLS 1 Fire alarm device, 10 base, 11 bottom plate, 11a opposing surface, 12 side plate, 13 rib, 14 fitting part, 15 fitting part, 16 hole, 17 pressing part, 17a pressing surface, 18 leaf spring, 20 alarm Main body, 21 Middle plate, 22 Rib, 23 Side plate, 24 Fitting part, 25 Fitting part, 26 Battery storage part, 27 Holding member, 28 Main body side connector, 30 Battery, 31 Lead, 32 Battery side connector, 32a End Side, 40 substrate.

Claims (4)

A base fixed to the installation surface; and an alarm main body fitted to the base by being rotated against the base and wired to a battery housed in the alarm main body. In the alarm device in which power is supplied to the internal circuit by inserting and connecting the battery side connector to the main body side connector provided in the alarm device main body,
The base is a pressing portion that presses the battery-side connector, which is not sufficiently inserted into the main-body-side connector, to the proper connection position by rotating the alarm device main body, thereby connecting to the main-body-side connector. I have a,
An alarm device , wherein the pressing surface that presses the battery-side connector in the pressing portion is configured by a curved surface or an inclined surface that decreases in distance from the body-side connector as it goes in the turning direction . . A base fixed to the installation surface; and an alarm main body fitted to the base by being rotated against the base and wired to a battery housed in the alarm main body. In the alarm device in which power is supplied to the internal circuit by inserting and connecting the battery side connector to the main body side connector provided in the alarm device main body,
The base is a pressing portion that presses the battery-side connector, which is not sufficiently inserted into the main-body-side connector, to the proper connection position by rotating the alarm device main body, thereby connecting to the main-body-side connector. I have a,
The alarm device characterized in that the storage position of the battery in the alarm device body is on the side opposite to the rotation direction when viewed from the connector on the body side . A base fixed to the installation surface; and an alarm main body fitted to the base by being rotated against the base and wired to a battery housed in the alarm main body. In the alarm device in which power is supplied to the internal circuit by inserting and connecting the battery side connector to the main body side connector provided in the alarm device main body,
The base is a pressing portion that presses the battery-side connector, which is not sufficiently inserted into the main-body-side connector, to the proper connection position by rotating the alarm device main body, thereby connecting to the main-body-side connector. I have a,
In a state where the battery is housed in a battery housing portion provided in the alarm device main body and the battery side connector is inserted into the main body side connector, a lead connecting the battery and the battery side connector is not bent. The alarm device is characterized in that a distance between the battery housing part and the main body side connector is adjusted . A base fixed to the installation surface; and an alarm main body fitted to the base by being rotated against the base and wired to a battery housed in the alarm main body. In the alarm device in which power is supplied to the internal circuit by inserting and connecting the battery side connector to the main body side connector provided in the alarm device main body,
The base includes a battery-side connector that is not sufficiently inserted into the main body-side connector, and a pressing portion that is pressed to an appropriate connection position by rotating the alarm device main body and connected to the main body-side connector. Yes, and
In a state where the battery side connector is inserted into the main body side connector, the surface facing the pressing portion of the battery side connector is inclined to the side opposite to the base as it goes in the turning direction. Alarm device characterized by being .

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