JP2007053009A - Casing and cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a casing preventing easy coming out of connector connection to a connection connector even if a signal wire is stretched, and to provide a cover used for the casing. <P>SOLUTION: A space S reaching a drawing out port 19a1 from an exposure hole 10c is formed between a fitting recess 10d and the cover 19. The signal wire 16 is inserted into the space and held, and the signal wire 16 is drawn out of the drawing out port 19a1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention includes a housing body that houses a wiring board on which a connection connector to be connected to an external device is mounted, an exposure hole provided in the housing body to expose the connection connector to the outside, and a connection connector. The present invention relates to a housing provided with a connecting line and a cover that covers an exposure hole, and a cover used for the housing.

  Conventionally, as an example of the above-described case, a case constituting a gas / fire alarm device as shown in FIG. 15 has been proposed. The alarm case shown in FIG. 15 is of a type installed on the ceiling. As shown in the figure, the alarm device includes a gas sensor 111 for detecting various gas concentrations, a temperature sensor 112 for detecting ambient temperature, and an alarm buzzer in a casing body 110 composed of an upper case 110a and a lower case 110b. A wiring board 115 on which 113 and various electronic components 114 are mounted is accommodated. The alarm generates an alarm to notify that when a gas leak, an increase in CO (carbon monoxide) concentration, or a fire occurs.

  In addition, the wiring board 115 accommodated in the alarm case is equipped with a plurality of external connection terminals such as a gas leak output terminal, a CO output terminal, a fire abnormality alarm output terminal, and a microcomputer meter output terminal (not shown). ) In the conventional alarm case, the signal line 116 (= connection line) is connected to each output terminal described above by soldering, and a plurality of signal lines 116 connected to each output terminal are provided in the case main body 110. Pulled out from the outlet 117. Then, the drawn signal line 116 is connected to an external device such as a gas meter, a central control panel, or an outdoor buzzer so that the external device can operate in conjunction with an alarm device (for example, Patent Documents 1 and 2). .

  By the way, the necessary signal lines 116 are different from each other by one, two, three, four, etc. according to the user's request. However, in the conventional alarm device housing, the signal lines 116 connected to all the output terminals mounted on the wiring board 115 by soldering are drawn out from the outlet 117, and the signal lines 116 that are not required by the user. Has been pulled out. In order to pull out only the signal line 116 connected to the output terminal required by the user, for example, it is necessary to perform soldering during installation and connect the signal line 116 to the output terminal required by the user. It takes a long time and is practically difficult.

  Therefore, an alarm device case as shown in FIG. 16 is considered. FIG. 4A is an enlarged view of the back surface of a type of alarm device case installed on the ceiling, and FIG. 4B is an enlarged view of a portion of the alarm device housing taken along the line I-I shown in FIG. As shown in the figure, the alarm device housing accommodates a wiring board 115 on which a plurality of output connectors 118 (= connecting connectors) such as a gas leak output, a CO output, a fire abnormality alarm output, and a microcomputer meter output are mounted. A housing main body 110 including an upper case 110a and a lower case 110b is provided.

  The housing body 110 has an exposure hole 110c for exposing the output connector 118 to the outside, and a fitting recess 110d for fitting a cover 119 covering the exposure hole 110c. Further, the alarm housing includes a cover 119 fitted into the fitting recess 110d described above, and a signal line 116 connected to the output connector 118 is drawn out from an outlet 119a formed in the cover 119. When the signal line 116 is not pulled out at all, another cover in which the outlet 119a is not formed is fitted into the fitting recess 110d, and the exposure hole 110c is covered, so that dust is introduced from the exposure hole 110c into the housing body 110. And so on.

  As shown in the figure, since the outlet 119a is formed at a position facing the exposure hole 110c, the outlet 119a is drawn out without holding the signal line 116. For this reason, when a pulling force is applied to the signal line 116 in the direction of the arrow Y1, the connector connection with the output connector 118 may be easily disconnected.

The opening area of the outlet 119a is formed in accordance with the maximum number of signal lines 116. For example, when five output connectors 118 are provided, the outlet 119a is formed so that the five signal lines 116 can be drawn out. For this reason, as shown in FIG. 16, when only two signal lines 116 need to be pulled out, a gap generated between the signal line 116 and the outlet 119a becomes large, and a cockroach or the like is formed inside the casing body 110. There is a high possibility that foreign objects will enter.
JP 2001-14567 A JP 2004-21653 A

  Accordingly, the present invention focuses on the above-described problems, and provides a housing that prevents the connector connection with the connection connector from being easily disconnected even when the connection line is pulled, and a cover used for the housing. Is an issue.

  In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a housing main body accommodating a wiring board on which a connection connector to be connected to an external device is mounted, and the housing for exposing the connection connector to the outside. An exposure hole provided in the body body, a connection line connected to the connection connector, a cover covering the exposure hole, and an outlet provided in the cover for pulling out the connection line to the outside The housing has the connection line drawn out from the outlet while being held in a gap between the housing main body and the cover that reaches the outlet from the exposure hole. Located in the housing.

  According to the first aspect of the present invention, the connecting line is drawn out from the outlet in a state where the connecting line is held between the cover body and the cover that reaches the outlet from the exposure hole. Accordingly, since the connection line is sandwiched between the casings, that is, held between the casing body and the cover, the connector connection between the connection line and the connection connector is not easily disconnected even if the connection line is pulled.

  The invention according to claim 2 resides in the housing according to claim 1, wherein the outlet is provided by cutting out a thin portion provided in the cover.

  In the invention according to claim 2, the outlet is provided by cutting out a thin portion provided in the cover. Therefore, when it is not necessary to connect the connection line to the connection connector, the thin wall portion is not cut off, that is, it can be covered with a cover without an outlet, and if you want to connect the connection line to the connection connector, The outlet can be easily formed by cutting out the portion and pulling out the connecting line.

  The invention according to claim 3 is a housing main body that houses a wiring board on which a connection connector to be connected to an external device is mounted, and an exposure hole provided in the housing main body to expose the connection connector to the outside. And a cover having a connection line connected to the connection connector and a cover that covers the exposure hole, and is sandwiched in a gap between the cover main body and the cover that reaches the cover end from the exposure hole. The housing has the connection line drawn out from the end of the cover while being held in the housing.

  According to the third aspect of the present invention, the connection line is pulled out from the cover end in a state where the connection line is held between the cover body and the cover that reaches the cover end from the exposure hole. Accordingly, since the connection line is sandwiched between the casings, that is, held between the casing body and the cover, the connector connection between the connection line and the connection connector is not easily disconnected even if the connection line is pulled.

  According to a fourth aspect of the present invention, there is provided a linear connection line accommodation groove formed on one of the cover and the housing body from the exposed hole toward the outlet or the cover end, and the connection line accommodation groove. And the other part of the cover body and the other of the casing main body sandwiched by the gap between the connection line accommodation groove, the protrusion provided in the connection line accommodation groove is cut off, and the other The housing according to any one of claims 1 to 3, wherein the connection line is held.

  According to the fourth aspect of the present invention, the linear connection line accommodation groove is formed in one of the cover and the housing body from the exposure hole toward the outlet or the cover end. A gap between the connection line receiving groove and the other, in which a protrusion provided in the connection line receiving groove is cut to close the gap between the connection line receiving groove and the other of the cover and the housing body. Held between. Therefore, while the connection line is not accommodated in the connection line accommodation groove, the cover is covered with the gap between the housing body and the cover closed by covering the exposure hole with the cover whose protrusion is not cut off. When it is desired to accommodate the connection line in the connection line accommodation groove, the protrusion can be cut out to easily form a gap reaching the outlet or the cover end.

  The invention according to claim 5 further includes a linear body-side connecting wire receiving groove formed in the housing body from the exposed hole toward the outlet or the cover end. Exist.

  According to the fifth aspect of the present invention, the housing body side connection line accommodation groove is formed in the housing body and is formed from the exposure hole toward the outlet or the cover end. Accordingly, since the housing body side connection line accommodation groove is formed toward the outlet or cover end from which the connection line is drawn out from the exposure hole, the connection line is drawn from the exposure hole by the housing body side connection line accommodation groove. It can be guided to the outlet or cover end.

  According to a sixth aspect of the present invention, the surface of the cover on the side of the exposed hole is provided with a contact protrusion that contacts a connector provided at an end of the connection line. Or exists in the case described in item 1.

  According to the sixth aspect of the present invention, the contact protrusion provided on the surface of the cover on the exposed hole side contacts the connector provided at the end of the connection line. Therefore, even if the connection line is pulled, the connector of the connection line is pressed from the cover side by the contact protrusion, so that the connector connection between the connection line and the connection connector is not released. In addition, the space formed between the housing body and the cover can be narrowed by being filled with the contact protrusions.

  According to a seventh aspect of the present invention, there is provided a cover for covering an exposed hole for exposing the connection connector provided in a housing body for housing a wiring board on which a connection connector connected to an external device is connected via a connection line. In this case, the cover has a thin-walled portion that is formed with an outlet that is pulled out in a state in which the connection line is held in a gap between the housing main body and the cover.

  According to invention of Claim 7, it has a thin part in which the drawer outlet from which a connection line is pulled out in the state hold | maintained in the clearance gap between a housing main body and a cover is formed. Therefore, since the connection line can be held in the gap, that is, sandwiched between the housing body and the cover, the connection between the connection line and the connection connector is not easily disconnected even if the connection line is pulled. In addition, the thin part is not cut off when it is not necessary to connect the connection line to the connection connector, that is, it can be covered with a cover that does not have a pull-out port, and it is thin when you want to connect the connection line to the connection connector. The outlet can be easily formed by cutting out the portion and pulling out the connecting line.

  The invention according to claim 8 resides in the cover according to claim 7, wherein a plurality of the thin portions are provided corresponding to a plurality of outlets having different opening areas.

  According to the eighth aspect of the present invention, a plurality of thin wall portions are provided corresponding to a plurality of outlets having different opening areas. Therefore, if the number of connection lines is large, a thin portion provided corresponding to a large opening area of the plurality of thin portions is cut to form a large opening area outlet, and the number of connection lines is If there are few, the thin part provided corresponding to the small opening area outlet of a plurality of thin parts can be cut off, and the small opening area outlet can be formed. An outlet having an opening area with a corresponding size can be formed.

  The invention according to claim 9 is characterized in that the thin portion is a linear large thin portion provided corresponding to the peripheral edge of the large pull outlet, and the large pull outlet formed to be surrounded by the linear thin portion. 9. The cover according to claim 8, further comprising a small thin portion provided corresponding to the small outlet having a smaller opening area.

  According to the ninth aspect of the present invention, the outlet is a linear large-thick portion provided corresponding to the periphery of the large outlet, and the large outlet formed surrounded by the linear large-thin portion. Any one of the small thin portions provided corresponding to the small outlets having an opening area smaller than the outlet is provided. Therefore, the formation area of the thin portion can be reduced as compared with the case where the large thin portion and the small thin portion are formed at different locations.

  According to a tenth aspect of the present invention, there is provided a cover for covering an exposed hole that exposes the connection connector provided on a housing body that houses a wiring board on which a connection connector connected to an external device is connected via a connection line. A linear cover-side connecting line housing groove formed toward the outlet or the cover end provided in the cover to draw out the connecting line from a position facing the exposed hole; A cover having a protrusion provided in the cover-side connection line accommodating groove in order to close a gap that holds the connection line between the cover-side connection line accommodating groove and the housing body. Exist.

  According to the invention of claim 10, since the connection line is held between the gap, that is, the housing body and the cover, the connector connection between the connection line and the connection connector can be easily performed even if the connection line is pulled. It will not come off. Moreover, while the connection line is not accommodated in the cover side connection line accommodation groove, the cover is covered with the cover whose protrusion is not cut off so that the gap between the housing body and the cover is closed. When it is desired to accommodate the connection line in the cover side connection line accommodating groove, the protrusion can be cut off to easily form a gap reaching the outlet or the cover end.

  As described above, according to the first and third aspects of the invention, the connection line is sandwiched between the gaps, that is, held between the housing body and the cover, so that even if the connection line is pulled, the connection can be made easily. The connector connection between the wire and the connector is not disconnected.

  According to the invention described in claim 2, while it is not necessary to connect the connection line to the connection connector, the thin portion is not cut off, that is, it can be covered with a cover in which no outlet is formed. When you want to connect a connection line, you can easily form an outlet that cuts out the thin part and pulls out the connection line, so that foreign matter enters the main body of the case through a gap from the outlet where the connection line is not pulled out. Can be prevented.

  According to the fourth aspect of the invention, while the connection line is not accommodated in the connection line accommodation groove, the exposure hole is covered with the cover whose protrusion is not cut off, so that the gap between the housing body and the cover is closed. The cover can be covered in a peeled state, and when it is desired to accommodate the connection line in the connection line accommodating groove, the protrusion can be cut off and a gap reaching the outlet or the cover end can be easily formed. It is possible to prevent foreign matter from entering the housing main body through a gap in which is not accommodated.

  According to the fifth aspect of the present invention, the housing body side connection line accommodation groove is formed toward the outlet or the cover end from which the connection line is drawn out from the exposure hole. Since the connection line can be guided from the exposure hole to the outlet or the cover end, the connection line can be easily pulled out from the outlet or the cover end.

  According to the sixth aspect of the present invention, even when the connection line is pulled, the connector of the connection line is pressed from the cover side by the contact protrusion, so that the connector connection between the connection line and the connection connector is not released. Moreover, since the space formed between the housing body and the cover can be narrowed by the contact protrusion, even if a foreign object enters the space formed between the housing body and the cover. Since the space is narrow, it is possible to prevent further intrusion into the inside of the housing body 1 through the exposure hole.

  According to the seventh aspect of the present invention, since the connection line can be held in the gap, that is, sandwiched between the housing body and the cover, the connector between the connection line and the connection connector can be easily pulled even if the connection line is pulled. There is no disconnection. In addition, the thin part is not cut off when it is not necessary to connect the connection line to the connection connector, that is, it can be covered with a cover that does not have a pull-out port, and it is thin when you want to connect the connection line to the connection connector. Since the outlet through which the connection line is drawn out can be easily formed, foreign substances can be prevented from entering the housing body through the gap from the outlet from which the connection line is not drawn out.

  According to invention of Claim 8, if the number of connection lines is large, the thin part provided corresponding to the large opening area outlet of several thin parts will be cut off, and the large opening area outlet may be provided. If the number of connecting lines is small, the thin portion provided corresponding to the small opening area of the plurality of thin portions can be cut out to form a small opening area outlet. Sometimes it is possible to easily form an outlet with an opening area corresponding to the number of connecting wires, so that foreign matter can be prevented from entering the housing body through the gap between the outlet and the connecting wire. Can do.

  According to the ninth aspect of the invention, compared to the case where the large thin portion and the small thin portion are formed in different places, the formation area of the thin portion can be reduced, so that the size can be reduced. it can.

  According to the invention of claim 10, since the connection line is held between the gap, that is, the housing body and the cover, the connector connection between the connection line and the connection connector can be easily performed even if the connection line is pulled. It will not come off. Moreover, while the connection line is not accommodated in the cover side connection line accommodation groove, the cover is covered with the cover whose protrusion is not cut off so that the gap between the housing body and the cover is closed. If you want to accommodate the connection line in the cover side connection line accommodating groove, you can easily cut out the protrusion and form a gap reaching the outlet or cover end, so that the connection line is accommodated. It is possible to prevent foreign matter from entering the housing body through a gap that is not present.

1st Embodiment Hereinafter, the housing | casing and cover of this invention in 1st Embodiment are demonstrated based on drawing. FIG. 1 is an exploded partial rear view of an alarm housing of the type installed on the ceiling, which is the housing of the present invention. FIG. 2 is an exploded cross-sectional view taken along line II-II of the alarm device case shown in FIG. Fig.3 (a) is a rear view of the alarm device housing | casing shown in FIG. 1, (b) is the III-III sectional view taken on the line of the alarm device housing | casing shown in (a).

  As shown in the figure, the alarm case has a gas sensor for detecting various gas concentrations, a temperature sensor for detecting ambient temperature, and an alarm buzzer (none of which are shown), and an output connector 18 connected to an external device. A housing body 10 is provided that includes an upper case 10a and a lower case 10b that house a wiring board 15 on which (= connector connector) is mounted. The alarm housing generates an alarm to notify that when a gas leak, an increase in CO concentration, or a fire occurs. Examples of the output connector 18 described above include gas leak alarm output, CO output, fire abnormality alarm output, and microcomputer meter output.

  The alarm housing also has an exposure hole 10c provided in the housing body 10 for exposing the output connector 18 to the outside, a signal line 16 connected to the output connector 18, and a cover 19 covering the exposure hole 10c. It has. Further, the housing body 10 described above is formed with a fitting recess 10d for fitting the cover 19 therein. In this way, by exposing the output connector 18 from the exposure hole 10c, the connector 16a provided at the end of the signal line 16 (= connection line) can be easily connected to the output connector 18 when the alarm device housing is installed. Thus, the necessary signal line 16 can be pulled out from the alarm housing.

  Further, the cover 19 described above has a small outlet 19a1 (= extraction outlet) for pulling out the signal line 16, which is formed by notching the back end in the insertion direction Y2. The small outlet 19a1 described above is formed at a position different from the position facing the exposure hole 10c, as shown in FIG. In other words, the exposure hole 10c is not exposed through the small outlet 19a1 even when viewed from the ceiling.

  Further, as shown in FIG. 1, a linear guide groove 10e (= connection) reaching the position facing the small outlet 19a1 of the cover 19 from the exposure hole 10c is inserted into the fitting recess 10d formed in the housing body 10. A line accommodating groove) is formed. As shown in FIG. 3B, the cover 19 is formed with a cover recess 19 b that reaches the small outlet 19 a 1 from a position facing the exposure hole 10 c formed in the housing body 10. By providing the guide groove 10e and the cover recess 19b in this manner, a gap S (FIG. 3B) reaching the small outlet 19a1 from the exposure hole 10c is formed between the fitting recess 10d and the cover 19. .

  The size of the gap S is substantially the same as that of the signal line 16, and the signal line 16 is held between the gaps, that is, in the state held between the guide groove 10e and the cover recess 19b. It is pulled out from the small outlet 19a1. Thus, since the signal line 16 is held between the guide groove 10e and the cover recess 19b, even if the signal line 16 is pulled, the connector connection between the signal line 16 and the output connector 18 is not easily disconnected. .

  The pull-out strength of the signal line 16 in the state where the signal line 16 is not held as in the prior art is 6.5 to 9.8 N (average 8.7 N), whereas as shown in FIG. The pull-out strength of the signal line 16 in a state where 16 is held in the gap S is 11.9 to 15.9 N (average 13.4 N), and the pull-out strength can be increased.

  Next, how to fit the cover 19 into the fitting recess 10d will be described. First, the connector 16a provided at the end of the signal line 16 is connected to the output connector 18, and the signal line 16 is pulled out from the exposure hole 10c. Next, by accommodating the signal line 16 drawn out from the exposure hole 10c in the guide groove 10e described above, the signal line 16 goes from the exposure hole 10c to the small outlet 19a1. Next, when the cover 19 is inserted from the insertion Y2 direction and fitted into the fitting recess 10d, the signal line 16 is drawn out from the small outlet 19a1 formed at the end of the cover 19.

  As described above, since the guide groove 10e is linearly formed from the exposed hole 10c toward the small outlet 19a1, the signal line 16 can be guided from the exposed hole 10c to the small outlet 19a1 by the guide groove 10e. When the cover 19 is inserted, the signal line 16 can be easily pulled out from the small outlet 19 a 1 of the cover 19.

  As shown in FIG. 6, the cover 19 includes a pair of back side insertion claws 19 c formed on the back side in the insertion direction Y <b> 2, and a pair of front side insertion claws 19 d formed on the front side in the insertion direction Y <b> 2; It has a pair of insertion recessed part 19e formed between the mutual back side insertion nail | claw 19c and the near side insertion claw 19d. The pair of back side insertion claws 19c described above can be elastically deformed.

  As shown in FIG. 1, while inserting the back side insertion nail | claw 19c formed in this cover 19 into the back side insertion hole 10f formed in the lower case 10b, elastically deforming, the insertion recessed part of the cover 19 mentioned above When the insertion protrusion 10g formed in the lower case 10b is fitted into 19e and the pair of front insertion claws 19d are inserted into the front insertion holes 10h formed in the lower case 10b, the cover 19 is attached to the lower case 10b. It fixes in the state inserted by the insertion recessed part 10d formed in this.

  Due to the fitting between the insertion protrusion 10g of the lower case 10b and the insertion recess 19e of the cover 19, the cover 19 cannot be removed even if a force is applied in the direction opposite to the insertion direction Y2. In addition, by inserting the insertion claws 19c and 19d into the insertion holes 10f and 10h, the cover 19 cannot be removed even when a vertical force is applied.

  Next, details of the above-described cover 19 will be described with reference to FIGS. FIG. 4 is a perspective view of the cover 19 of the present invention. 5A is a rear view of the cover 19 shown in FIG. 4, and FIG. 5B is a sectional view taken along the line IV-IV of the cover 19 shown in FIG. 6A is a perspective view of the cover 19 with the small thin portion 19f shown in FIG. 5 cut out, and FIG. 6B is the oblique view of the cover 19 with the large thin portion 19g shown in FIG. FIG.

  As shown in FIGS. 4 and 5, in the initial state, the cover 19 is not formed with an outlet, and is formed with a small thin portion 19f and a large thin portion 19g where the outlet is formed when the cover 19 is cut out. . The small thin part 19f and the large thin part 19g are provided corresponding to two large and small outlets having different opening areas. Specifically, when a portion where the small thin portion 19f is formed is cut out, a small outlet 19a1 having a small opening area is formed as shown in FIG. On the other hand, when the cover 19 is cut along the linear large thin portion 19g, a large outlet 19a2 having a large opening area is formed as shown in FIG. 6B.

  For example, as shown in FIG. 3, when the number of signal lines 16 to be pulled out is as small as two, the small thin portion 19f is cut out to form a small outlet 19a1, and the signal line 16 is pulled out. On the other hand, as shown in FIG. 7, when the number of the signal lines 16 to be drawn is as large as five, the large thin portion 19g can be cut out to form the large outlet 19a2 and the signal line 16 can be pulled out. Accordingly, the small outlets 19a1 and 19a2 having an opening area having a size corresponding to the number of the signal lines 16 can be easily formed at the time of installation, and between the small outlets 19a1 and 19a2 and the signal lines 16 can be formed. Can be made as small as possible, and entry of foreign matters such as cockroaches from the small outlet 19a1 and the large outlet 19a2 can be prevented.

  Further, for example, before the alarm housing is installed or while the signal line 16 does not need to be pulled out even if it is installed, neither the small thin portion 19f nor the large thin portion 19g is cut off, that is, the outlet 19a1. , 19a2 can be covered with the cover 19, so that foreign matter can be prevented from entering the housing body 10 from the outlet from which the signal line 16 is not drawn.

  Moreover, the small thin part 19f of the cover 19 mentioned above is formed surrounded by the linear large thin part 19g. As the thin portion, it is conceivable that the small thin portion 19f and the large thin portion 19g are formed in different places, but by forming in this way, the formation area of the thin portion can be reduced. Miniaturization can be achieved.

  In the first embodiment described above, the small thin portion 19f and the large thin portion 19g formed on the cover 19 are cut out to form the small outlet 19a1 and the large outlet 19a2. However, the present invention is not limited to this. The cover 19 in which the small outlet 19a1 or the large outlet 19a2 is formed in advance may be used.

  Moreover, in 1st Embodiment mentioned above, by exposing both the fitting recessed part 10d and the cover 19 and forming the guide groove 10e and the cover recessed part 19b, between the fitting recessed part 10d and the cover 19, it exposes. A gap reaching the small outlet 19a1 from the hole 10c was formed. However, the present invention is not limited to this, and any configuration may be used as long as a gap for holding the signal line 16 is formed. For example, only the fitting recess 10d is recessed to form a gap (that is, a guide groove). Only the cover recess 19b is not formed, and only the cover 19 may be recessed to form a gap (that is, only the cover recess 19b is formed and the guide groove 10e is not formed).

  In the first embodiment described above, the guide groove 10e is provided so as to reach the position facing the small outlet 19a1 from the exposure hole 10c. That is, the guide groove 10e was exposed from the small outlet 19a1. However, the present invention is not limited to this, and the guide groove 10e only needs to be formed from the exposure hole 10c toward the position facing the small outlet 19a1, and may not reach the position facing the small outlet 19a1. Good. However, in this case, the gap S sandwiching the signal line 16 is not formed between the guide groove 10e and the cover 19 as shown in FIG. 3, but the insertion recess 10d and the cover 19 higher than the guide groove 10e. Formed between.

  Moreover, in 1st Embodiment mentioned above, the edge part of the cover 19 was cut off and the small outlet 19a1 and the large outlet 19a2 were formed. However, the present invention is not limited to this, and may not be the end of the cover 19. However, when the cover 19 is not formed at the end, the signal line 16 is inserted into the outlet of the cover 19 and connected to the output connector 18, and then the cover 19 is inserted into the fitting recess 10d.

  Further, in the first embodiment described above, two parts are formed, a small thin part 19f and a large thin part 19g where a small outlet 19a1 and a large outlet 19a2 are formed when cut. However, the present invention is not limited to this. For example, one thin portion corresponding to one drawing port may be formed. Moreover, you may make it form the 3 or more thin part corresponding to a 3 or more drawer opening mutually opening area.

  In the first embodiment described above, the guide groove 10e has a width that can accommodate a plurality (two) of signal lines 16, but a plurality of guide grooves 10e having a width corresponding to one signal line. You may make it form.

Second Embodiment Next, a housing and a cover of the present invention in a second embodiment will be described based on the drawings. FIG. 8 is a partially exploded rear view of an alarm housing of the type installed on the wall which is the housing of the present invention. 9A is a rear view of the alarm device case shown in FIG. 1, and FIG. 9B is a cross-sectional view taken along line IV-IV of the alarm case shown in FIG. 10 (a) and 10 (b) are views of the cover shown in FIG. 9 as seen from the housing body side, as seen from the front side of the insertion direction Y2, and (c) is shown in (a). It is the VV sectional view taken on the line of the cover shown.

  In the figure, the same reference numerals are used for the same parts as in the first embodiment, and detailed description thereof is omitted. As shown in the figure, the alarm device housing includes a wiring board 15 (FIG. 9) on which an output connector 18 for an external device is mounted in addition to a gas sensor, a temperature sensor, and an alarm buzzer (not shown), and this The housing body 10 includes a front case 10a1 that houses the wiring board 15 and a wall case 10b1.

  Similar to the first embodiment, the wall side case 10b1 described above has a fitting recess 10d (FIG. 8) into which the cover 19 is fitted, and an exposure hole 10c formed in the fitting recess 10d. Is provided. Further, a plurality of linear guide grooves 10e (five in the example shown in FIG. 8) reaching the position facing the end of the cover 19 from the exposure hole 10c are formed in the fitting recess 10d. The guide groove 10e has a width corresponding to the signal line 16 and one signal line.

  Further, as shown in FIG. 10, the surface of the cover 19 on the side facing the fitting recess 10 d described above has a linear shape reaching the end T on the back side in the insertion direction Y <b> 2 from the position facing the exposure hole 10 c. A signal line accommodation groove 19i (= connection line accommodation groove) is formed. The linear signal line receiving grooves 19i that do not reach the two left ends T in the drawing will be described later. By forming the guide groove 10e and the signal line receiving groove 19i in this manner, the gap S (see FIG. 9B) between the fitting recess 10d and the cover 19 from the exposed hole 10c to the end T end of the cover 19 is formed. )) Is formed.

  The size of the gap S is formed substantially the same as that of the signal line 16, and the signal line 16 is held between the exposure hole 10 c and the cover 19 while being sandwiched between the gaps S and the end of the cover 19. It is drawn from T. In this manner, the signal line 16 is sandwiched between the gaps, that is, the signal line 16 is held between the guide groove 10e formed in the fitting recess 10d and the signal line accommodating groove 19i, so that the signal line 16 can be easily pulled. The connector connection between the signal line 16 and the output connector 18 is not disconnected.

  Next, how to fit the cover into the recess will be described. First, the connector 16a provided at the end of the signal line 16 is connected to the output connector 18, and the signal line 16 is pulled out from the exposure hole 10c. Next, by accommodating the signal line 16 drawn out from the exposure hole 10 c in the guide groove 10 e described above, the signal line 16 moves from the exposure hole 10 c to a position facing the end T of the cover 19. Next, when the cover 19 is inserted from the insertion Y2 direction and is inserted into the insertion recess 10d, the signal is transmitted from the end 19 of the cover 19 with the signal line 16 held between the guide groove 10e and the signal line receiving groove 19i. Line 16 is drawn.

  As described above, since the guide groove 10e is linearly formed from the exposed hole 10c toward the position facing the end T of the cover 19, the signal line 16 is connected to the end of the cover 19 from the exposed hole 10c by the guide groove 10e. It can be guided to a position facing the portion T, and the signal line 16 can be easily pulled out from the end portion T of the cover 19 when the cover 19 is inserted.

  Next, details of the above-described cover will be described with reference to FIGS. FIG. 11 is a perspective view of the cover of the present invention. As shown in FIG. 11, a protrusion 19j that closes at least a part of the gap S between the signal line accommodation groove 19i and the fitting recess 10d is formed at the cover end in the signal line accommodation groove 19i in the initial state. Is provided. In other words, the signal line accommodation groove 19 i is not formed up to the end T of the cover 19, and the signal line accommodation groove 19 i penetrates to the cover 19 end T when the projection 19 j is cut off. For example, as shown in FIG. 9, when the number of the signal lines 16 to be drawn out is 3, as shown in FIG. The signal line accommodation groove 19i is penetrated to the cover end T.

  Accordingly, among the plurality (five in the second embodiment) of the signal line receiving grooves 19i, if the protrusions 19j provided in the signal line receiving grooves 19i corresponding to the number of the signal lines 16 are cut off, the installation can be easily performed. A gap S corresponding to the number of signal lines 16 can be formed. In addition, since the gap S between the signal line housing groove 19i in which the signal line 16 is not accommodated and the fitting recess 10d is closed by the protrusion 19j, it is possible to prevent foreign matter from entering from the gap in which the signal line 16 is not accommodated. it can.

  Moreover, the cover shown in FIG. 11 is further provided with large and small thin portions 19g and 19f, similarly to the cover used in the first embodiment. Accordingly, as shown in FIGS. 3 and 7, the signal line 16 can be pulled out from the outlets 19a1 and 19a2 formed by cutting out the large and small thin portions 19g and 19f, or the protrusion 19j can be cut out as shown in FIG. It is also possible to pull out the signal line 16 from the cover end T formed in this way, and it is not necessary to separately form the cover 19 that is drawn out from the outlets 19a1 and 19a2 and the cover 19 that is drawn out from the end T. Can be achieved.

  In the above-described second embodiment, the signal line 16 is drawn from the cover end T. However, the signal line housing groove 19i and the protrusion 19j are applied to the signal line 16 drawn from the outlet. It is also possible to do. In this case, for example, the signal line accommodation groove 19i is formed from the exposure hole 10c toward the outlet. At this time, a protrusion 19j that closes the gap S between the signal line accommodation groove 19i and the fitting recess 10d is formed in the signal line accommodation groove 19i. By configuring in this way, a gap S corresponding to the number of signal lines 16 can be easily formed at the time of installation, as in the second embodiment. In addition, since the gap S between the signal line housing groove 19i in which the signal line 16 is not accommodated and the fitting recess 10d is closed by the protrusion 19j, it is possible to prevent foreign matter from entering from the gap in which the signal line 16 is not accommodated. it can.

  In the second embodiment, the protrusion 19j is provided at the cover end T of the signal line accommodation groove 19i. However, the formation position of the protrusion 19j in the signal line accommodation groove i is not limited to this, and may be any formation position that closes the gap S. In the second embodiment, the protrusion 19j is provided in the signal line accommodation groove 19i provided in the cover 19. However, the present invention is not limited to this, and for example, it is also conceivable to provide a protrusion that closes the gap S between the guide groove 10e and the cover 19 in the guide groove 10e provided in the fitting recess 10d.

  In the second embodiment described above, the cover 19 is also formed with the thin portions 19g and 19f in addition to the signal line accommodation groove 19i. However, the present invention is not limited to this, and the thin portions 19g and 19g may not be formed.

  In the second embodiment described above, the protrusions 19j that close the gaps S are formed in the signal line receiving grooves 19i, and the protrusions 19j in the number of signal line receiving grooves 19i necessary for installation are cut off. However, the present invention is not limited to this, and a configuration in which the protrusion 19j is not provided in the signal line accommodation groove 19i may be employed.

  Moreover, in 2nd Embodiment mentioned above, both the insertion recessed part 10d and the cover 19 are recessed, and the guide groove 10e and the signal-line accommodation groove | channel 19i are formed, Between the insertion recessed part 10d and the cover 19 is carried out. A gap reaching the end 19 of the cover 19 from the exposure hole 10c was formed. However, the present invention is not limited to this. For example, only the fitting recess 10d is recessed to form a gap (that is, only the guide groove 10e is formed and the signal line receiving groove 19i is not formed), or only the cover 19 is formed. A gap may be formed by recessing (that is, only the signal line receiving groove 19i is formed, and the guide groove 10e is not formed).

  In the second embodiment described above, the guide groove 10e is provided so as to reach a position facing the cover end T from the exposure hole 10c. That is, the guide groove 10 e is exposed from the cover 19. However, the present invention is not limited to this, and the guide groove 10e only needs to be formed from the exposed hole 10c toward the position facing the cover end T, and may not reach the position facing the cover end T. Good. However, in this case, the gap S sandwiching the signal line 16 is not formed between the guide groove 10e and the cover 19, but is formed between the fitting recess 10d that is one step higher than the guide groove 10e and the cover 19.

3rd Embodiment Next, the housing | casing and cover of this invention in 3rd Embodiment are demonstrated based on drawing. FIG. 12 is a perspective view of a cover in the third embodiment. 13 is a partial cross-sectional view of an alarm housing using the cover of FIG. 14 is a partial sectional view taken along line VI-VI of the alarm housing shown in FIG.

  In the figure, the same reference numerals are used for the same parts as in the first and second embodiments, and detailed description thereof is omitted. As shown in the figure, the alarm device case includes a wiring board 15 (FIG. 13) on which an output connector 18 for an external device is mounted, in addition to a gas sensor, a temperature sensor, and an alarm buzzer (all not shown), A housing body 10 that houses the wiring board 15 is provided.

  Similarly to the first and second embodiments, the housing main body 10 described above is fitted into a fitting recess 10d into which the cover 19 is fitted, and an exposure for exposing the output connector 18 formed inside the fitting recess 10d. A hole 10c is provided. Thus, by exposing the output connector 18 from the exposure hole 10c, the connector 16a provided at the end of the signal line 16 can be easily connected to the output connector 18 at the time of installation of the alarm device housing. Necessary signal lines 16 can be drawn from the body. Further, as shown in FIG. 12, a signal line housing groove 19i reaching the outlet 19a1 from a position facing the exposure hole 10c is formed on the surface of the cover 19 facing the exposure hole 10c. As shown in FIG. 14, the signal line accommodating groove 19i has a width that can accommodate, for example, five signal lines 16 together.

  Thus, by forming the signal line accommodating groove 19i, a gap is formed between the fitting recess 10d and the cover 16 so as to reach the outlet 19a1 from the exposure hole 10c. Of this gap, the size of the gap S 'formed by the outlet 19a1 side of the cover 19 and the fitting recess 10d is formed substantially the same as that of the signal line 16, and the signal line 16 is sandwiched by the gap S'. It is pulled out from the outlet 19a1 while being held in the state. Thus, since the signal line 16 is sandwiched between the gaps, that is, held between the housing body 10 and the cover 19, the connector between the signal line 16 and the output connector 18 can be easily obtained even if the signal line 16 is pulled. There is no disconnection.

  Further, a pair of contact protrusions 19 h that come into contact with the connector 16 a provided at the end of the connection line 16 are provided on the surface of the cover 19 on the exposed hole 10 c side. Accordingly, when the connection line 16 is pulled, the connector 16a of the connection line 16 is pressed from the cover 19 side by the contact protrusion 19h, so that the connector connection between the connection line 16 and the output connector 18 is not disconnected. Moreover, the space formed between the housing body 10 and the cover 19 can be narrowed by being filled with the contact protrusions 19h. For this reason, even if a foreign object enters the space formed between the housing main body 10 and the cover 19, the space is narrow and therefore prevents further intrusion from the bottom into the housing main body 10 through the exposure hole 10c. be able to.

  In the above-described third embodiment, a pair of contact protrusions 19h, that is, two contact protrusions 19h are provided. However, the present invention is not limited to this, and the number of the contact protrusions 19h may be one, or three or more.

  Further, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

It is a decomposition | disassembly partial rear view of the alarm device housing | casing of the type installed in the ceiling which is a housing | casing of this invention. It is the II-II sectional view taken on the line of the alarm housing shown in FIG. (A) is the partial rear view of the alarm device housing | casing shown in FIG. 1, (b) is the III-III sectional view taken on the line of the alarm device housing | casing shown to (a). It is a perspective view of the cover 19 of this invention. 4A is a rear view of the cover 19 shown in FIG. 4, and FIG. 4B is a sectional view taken along the line IV-IV of the cover 19 shown in FIG. (A) is a perspective view of the cover 19 in a state where the small thin portion 19f shown in FIG. 5 is cut out, and (b) is a perspective view of the cover 19 in a state where the large thin portion 19g shown in FIG. 5 is cut out. is there. It is a partial rear view of the alarm device housing when the signal line 16 is pulled out from a large outlet 19a2 formed by cutting out a large thin portion 19g. It is a partial exploded rear view of the alarm device case of the type installed on the wall which is the case of the present invention. (A) is a rear view of the alarm housing shown in FIG. 1, and (b) is a cross-sectional view taken along the line VV of the alarm housing shown in (a). (A), (b) is the figure which looked at the cover shown in FIG. 9 from the housing body side, respectively, it was the figure seen from the insertion direction Y1 near side, (c) is the cover shown in (a). It is XX sectional drawing of. It is a perspective view of the cover of this invention. It is a perspective view of the cover in 3rd Embodiment. It is a fragmentary sectional view of the alarm device housing | casing using the cover of FIG. It is a VI-VI line fragmentary sectional view of the alarm device case shown in FIG. It is a block diagram which shows an example of the conventional alarm device housing | casing. (A) is the back surface partial enlarged view of the alarm device housing | casing of the type attached to the conventional ceiling, (b) is the II sectional view taken on the line of the alarm device housing | casing shown to (a).

Explanation of symbols

10a Upper case 10b Lower case 10c Exposed hole 10d Insertion recess 10e Guide groove (housing body side connection line accommodation groove)
10 Housing Body 15 Wiring Board 16 Signal Line (Connection Line)
18 Output connector (= Connector)
19 Cover 19a1 Small outlet (= drawer)
19a2 Large outlet 19b Cover recess 19f Small thin part (thin part)
19g Large thin part (thin part)
19h Contact protrusion 19i Signal line accommodation groove (cover side connection line accommodation groove)
19j To-be-taken part S Gap

Claims (10)

A housing main body that houses a wiring board on which a connection connector to be connected to an external device is mounted, an exposure hole provided in the housing main body for exposing the connection connector to the outside, and connected to the connection connector In a housing provided with a connection line, a cover that covers the exposed hole, and an outlet provided in the cover to draw the connection line to the outside,
A housing having the connection line led out from the outlet in a state of being held in a gap between the casing main body and the cover reaching the outlet from the exposure hole.   The casing according to claim 1, wherein the outlet is provided by cutting a thin portion provided in the cover. A housing main body that houses a wiring board on which a connection connector to be connected to an external device is mounted, an exposure hole provided in the housing main body to expose the connection connector to the outside, and connected to the connection connector In a housing provided with a connection line and a cover covering the exposed hole,
A casing having the connection line drawn from the cover end in a state of being held in a gap between the casing main body and the cover reaching the cover end from the exposure hole . A linear connecting line receiving groove formed on one of the cover and the housing body from the exposed hole toward the outlet or the cover end,
Between the connection line accommodation groove and the other, where a protrusion provided in the connection line accommodation groove is cut off in order to close the gap between the connection line accommodation groove and the other of the cover and the housing body. The housing according to any one of claims 1 to 3, further comprising the connection line held between the gaps.   5. The apparatus according to claim 1, further comprising a linear body-side connecting wire receiving groove formed in the housing body from the exposed hole toward the outlet or the cover end. Housing.   The housing according to claim 1, wherein a contact protrusion that contacts a connector provided at an end of the connection line is provided on a surface of the cover on the exposed hole side. A cover that covers an exposed hole that exposes the connection connector provided to the outside of the housing body that accommodates a wiring board on which a connection connector connected to an external device is connected via a connection line,
A cover comprising: a thin-walled portion formed with an outlet through which the connection line is pulled out in a state where the connection line is held in a gap between the housing body and the cover.   The cover according to claim 7, wherein a plurality of the thin portions are provided corresponding to a plurality of outlets having different opening areas.   The thin-walled portion has a linear large-thickness portion provided corresponding to the periphery of the large-drawing outlet, and a small-drawing outlet having an opening area smaller than that of the large-drawing outlet formed surrounded by the linear thin-walled portion. The cover according to claim 8, further comprising a small thin portion provided corresponding to the above. A cover that covers an exposed hole that exposes the connection connector provided to the outside of the housing body that accommodates a wiring board on which a connection connector connected to an external device is connected via a connection line,
A linear cover-side connection line accommodation groove formed toward the outlet or the cover end provided in the cover in order to pull out the connection line from a position facing the exposed hole;
A cover having a protrusion provided in the cover-side connection line accommodating groove in order to close a gap that holds the connection line between the cover-side connection line accommodating groove and the housing body. .

Images