JP4740222B2 - Terminal cover - Google Patents

Description

  The present invention relates to a terminal cover that covers a terminal portion of an embedded electrical device.

  Conventionally, a terminal for connecting wiring for transmitting power and information signals has been provided on the rear surface of the housing, and the opening formed on the construction surface of the structure is inserted from the rear surface side of the housing, There is provided an embedded electrical device that uses the wiring disposed in the connector connected to a terminal provided on the rear surface of the housing.

  As this type of embedded electrical device, devices as shown in FIGS. 9 and 10 are provided. Here, when the lower right direction in FIG. 9 is the front of the embedded electric device 900, the upper left direction is the rear, the lower left direction is the left, the upper right direction is the right, the upper direction is the upper direction, and the lower direction is the lower direction. The built-in electric device 900 includes an electronic circuit (not shown) such as a control circuit and a measurement circuit, and a housing 910 in which these electronic circuits are housed. Includes an operation button 921 for operating and setting the electronic circuit with a finger or the like, and an operation surface 920 including a display unit 923 for displaying the current setting state of the electronic circuit is provided above the housing. On the rear surface of 910, a terminal portion 930 for connecting a wiring (not shown) for electrically connecting a commercial power source or an external device and an electronic circuit in the housing 910, and the terminal portion 930 are installed so as to cover the rear side. A terminal cover 960 is provided.

  And the housing | casing 910 is fixed from the rear surface side of the construction surface 940 with the attachment metal fittings 950 and 950 attached to the upper surface 910a and the lower surface 910b.

  The mounting bracket 950 includes a long rail portion 951 in which openings 956a and 956b along the longitudinal direction are formed in series, a slide bracket 955 provided on the surface of the rail portion 951, and an insertion of the rear surface of the rail portion 951. The screw 954 is screwed into the rear surface of the slide fitting 955 via a hole (not shown). A locking claw 952 protruding to the back surface side through the opening 956a is provided in front of the back surface of the slide metal fitting 955, and a locking projection 953 protruding to the back surface side through the opening portion 956b is provided in the rear of the back surface. It has been. Further, by turning the screw 954 screwed into the rear surface of the slide fitting 955 in the left-right direction through the insertion hole on the rear surface of the rail portion 951, the slide fitting 955 moves back and forth.

  Then, as shown in FIG. 10, the locking recesses 911 formed at the approximate center of the upper surface 910a and the lower surface 910b of the housing 910 with the locking claws 952, 952 and the locking projections 953, 953 of the mounting brackets 950, 950. 911 and notches 912 and 912 formed at the rear ends of substantially the center in the left-right direction, respectively. Next, the back surface of the rail portions 951 and 951 is brought into contact with the upper surface 910a and the lower surface 910b of the housing 910, and the front ends of the rail portions 951 and 951 are brought into contact with the rear surface of the construction surface 940, and then the screws. 954 and 954 are turned to move the slide fitting 955 backward. As a result, the rear ends of the locking claws 952 and 952 are locked to the rear ends of the locking recesses 911 and 911. As a result, the casing 910 is pulled rearward, and the outer peripheral edge 942 of the construction surface 940 is attached to the mounting bracket 950. , 950 and the rear surface of the front stepped portion 922 of the housing 910, and the housing 910 is fixed to the construction surface 940.

Thereafter, wiring (not shown) arranged in advance behind the construction surface 940 is connected to the terminal portion 930 of the housing 910, and four screws 962 are inserted into the four insertion holes 961 of the terminal cover 960, Screw into the screw holes 913 at the four corners on the rear surface of the housing 910. As a result, the terminal cover 960 is provided to cover the terminal portion 930 provided on the rear surface of the housing 910 from behind.
Japanese Patent No. 3759063

  By the way, since the conventional embedded electric device is installed with its rear surface embedded in the construction surface, the terminal cover that covers the terminal portion provided on the rear surface of the housing includes an attaching means for attaching to the construction surface. Not. Therefore, when there is no opening on the construction surface, the embedded electric device cannot be installed.

  Further, when the embedded electric device is directly attached to the construction surface, it is necessary to add a separate attachment means to the embedded electric device, which increases the number of parts of the embedded electric device.

  The present invention has been made in view of the above reasons, and its purpose is that even if there is no opening on the construction surface and the embedded electrical device cannot be installed by being embedded in the construction surface, the embedded type An object of the present invention is to provide a terminal cover that can install an embedded electric device on a construction surface without increasing the number of parts of the electric device.

According to the first aspect of the present invention, there is provided one surface of an electrical device that includes a terminal for connecting a wiring on one surface of the housing, and can be embedded and disposed through an opening formed on the construction surface of the structure from one surface of the housing. In the terminal cover that is attached to the side and covers the terminal, the cover body that is formed in a plate shape and is attached to one surface side of the electrical device with one surface facing the terminal is provided on the other surface of the cover body. The first mounting means for locking the cover body to the mounting rail by locking to both side edges of the long mounting rail installed on the construction surface, and the cover body provided directly on the construction surface At least one of the second attaching means to be attached is provided.

  According to this invention, the terminal cover includes a first mounting means for locking the terminal cover to the mounting rail by locking to both side edges of the mounting rail, and a second mounting means for directly attaching the terminal cover to the construction surface. Among them, since it has at least one of them, there is no opening on the construction surface, and even if it is not possible to install embedded electrical equipment in the opening, the mounting rail provided on the construction surface On the other hand, the rear surface of the terminal cover can be attached by the first attachment means, or the terminal cover can be attached to the construction surface by the second attachment means, thereby attaching the embedded electric device to the construction surface. Will be able to. Therefore, even if there is no opening on the construction surface and it is impossible to install the embedded electrical device in the construction surface, the number of parts of the embedded electrical device can be increased by attaching the terminal cover to the construction surface. The embedded electric device can be installed on the construction surface without causing it.

  According to a second aspect of the present invention, in the first aspect, the first mounting means includes a first locking claw that is locked to one side edge of the mounting rail, and a first locking claw that is locked to the other side edge of the mounting rail. The second attachment means is an insertion hole through which a screw screwed into the construction surface is inserted from one surface of the cover main body.

  According to the present invention, it is possible to easily attach the embedded electric device to the construction surface. In addition, by inserting a screw from one side of the terminal cover into the insertion hole formed in the terminal cover and screwing the screw into the construction surface, it is easy to directly attach the embedded electrical device to the construction surface. become able to.

  According to a third aspect of the present invention, in the second aspect, the second locking claw is slidable in a direction perpendicular to a longitudinal direction of the mounting rail, and the second locking claw is connected to the first locking claw. In a state of sliding in a direction away from the locking claw, the first locking claw is locked to one side edge of the mounting rail, and the other surface of the cover body is brought into contact with the mounting rail. After that, the cover main body is fixed to the mounting rail by sliding the second locking claw in a direction approaching the first locking claw and locking it to the other side edge of the rail.

  According to the present invention, it is not necessary to use a tool or the like when attaching the terminal cover of the embedded electrical device to the mounting rail of the construction surface, and it becomes easier to attach the embedded electrical device to the construction surface.

  As described above, in the present invention, even when there is no opening on the construction surface of the structure, the embedded electrical device is installed on the construction surface without increasing the number of parts of the embedded electrical device. There is an effect that can be.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
The embedded electrical apparatus according to this embodiment will be described with reference to FIGS. Here, in FIG. 1, the upper right direction is the front of the implantable electrical device 100, the lower left direction is the rear, the lower right direction is the right, the upper left direction is the left, the upper direction is the upper direction, and the lower direction is the lower direction.

  The embedded electric device 100 according to the first embodiment includes a rectangular box-shaped casing 110 made of insulating synthetic resin or the like, and houses an electronic circuit (not shown) such as a control circuit or a measurement circuit. is doing. The front surface of the housing 110 is provided with an operation surface 120 provided with operation buttons 121 for setting the operation of the electronic circuit by being pressed by a user with a finger. The rear surface of the housing 110 is provided with a commercial power source or an external device. A terminal portion 130 for connecting a wiring derived from (not shown) is provided, and an electronic circuit inside the housing 110 is electrically connected to a commercial power source or an external device via this wiring. And the terminal cover 140 is installed so that the terminal part 130 may be covered.

  The housing 110 has locking recesses 111 and 111 formed at substantially the center of each of the upper surface 110a and the lower surface 110b, and notches 112 and 112 are formed at the rear end of the substantially center in the left-right direction. These locking recesses 111, 111 and notches 112, 112 are provided in the mounting bracket 950 (FIGS. 9, 10) when the embedded electric device 100 is installed in the opening of the construction surface 940, as in the conventional example. Since the method of attaching the construction surface 940 to the opening using the mounting bracket 950 is the same, the description thereof will be omitted.

  As shown in FIG. 2, an operation surface 120 is provided on the front surface of the housing 110, and an electronic circuit provided inside the housing 110 is pressed below the operation surface 120 by a user pressing it with a finger. An operation button 121 for performing operation setting is provided, and a display unit 122 that indicates a setting state of an electronic circuit provided in the housing 110 is provided at the top of the operation surface 120.

  A terminal portion 130 is provided on the rear surface of the housing 110 as shown in FIG. The terminal portion 130 includes a plurality of terminal connection portions 130a formed on the rear surface of the housing 110 and exposed rearward from between a plurality of partition plates 113 horizontally horizontal. In addition, wirings derived from external devices are connected to the terminal connection unit 130a.

  The configuration of the housing 110 is the same as that of the conventional embedded electric device. However, in the present embodiment, the embedded electric device 100 can be attached to the construction surface 300 (see FIG. 6). Thus, the terminal cover 140 is configured as follows.

  The terminal cover 140 is formed of an insulating synthetic resin or the like and has a rectangular plate-shaped cover main body 141 that is elongated vertically. Insertion for inserting screws 500 on the left and right of the upper and lower ends of the cover main body 141 is performed. Holes 142 and 142 are formed.

  As shown in FIG. 3, an upper locking portion 145 (first attachment means) is formed above the rear surface of the cover main body 141, and a lower locking portion 146 is formed below the rear surface of the cover main body 141. (First attachment means) is provided.

  The upper locking portion 145 includes a support portion 143 projecting from the cover main body 141 and a locking claw 144 (first locking claw) extending downward from the rear end of the lower end of the support portion 143.

  As shown in FIG. 3, the lower locking portion 146 includes a movable portion 147 having a substantially rectangular frame shape and a pair of left and right sliding holding portions 148 that sandwich the movable portion 147. The movable portion 147 is formed with sliding portions 149 and 149 (see FIG. 4) at both left and right ends, and the sliding portions 149 and 149 are slidably held between the sliding holding portions 148 and 148. .

  Further, a locking claw 147a (second locking claw) protrudes upward from the upper end of the movable portion 147, and an operation piece 150 is formed below the movable portion 147. A pair of left and right holding arms 151 and 151 having elasticity protrude from the upper end of the operation piece 150. At the upper ends of the holding arms 151, 151 of the movable part 147, locking protrusions for locking to locking surfaces 152 a, 152 a provided at the hexagonal protruding part 152 provided below the center of the terminal cover 140. (Not shown) is provided protruding forward.

  The user puts his / her hand on the operation piece 150 and applies a force upward or downward to the movable portion 147, so that the sliding portions 149 and 149 of the movable portion 147 move inside the sliding holding portions 148 and 148. By sliding, the movable part 147 can be moved up and down. Further, when the movable portion 147 is moved upward, the holding arms 151 and 151 move upward while being separated from each other along the sliding surfaces 152b and 152b provided on the protrusion 152, and then the holding arm. 151 and 151 move upward along the locking surfaces 152a and 152a provided on the protrusion 152 while approaching each other. Then, the holding arms 151 and 151 return in parallel, and the locking projections of the holding arms 151 and 151 are locked to the locking surfaces 152a and 152a, so that the movable portion 147 is fixed in a state of being moved upward. it can.

  The upper locking portion 145 and the lower locking portion 146 are attached to a long mounting rail 200 such as a DIN rail provided on the construction surface 300 of the structure. As shown in FIG. 6, the mounting rail 200 includes an elongated support portion 220 having a substantially U-shaped cross section, and locking pieces 210 a protruding in a direction away from each end of both side edges of the support portion 220. 210b. And the support part 220 of the attachment rail 200 is made to contact | abut to the construction surface 300, and it attaches to the construction surface 300 with the screw etc. which are not shown in figure.

  Next, attachment to the construction surface 300 of the implantable electric device 100 of the present embodiment will be described below.

  First, wiring from a commercial power source or an external device is connected to the terminal portion 130 that is exposed on the rear surface of the housing 110.

  Next, the screws 500 are inserted from the rear into the four insertion holes 142 of the terminal cover 140, and the screws 500 are screwed into the four screw holes 114 formed on the rear surface of the housing 110. As a result, the terminal cover 140 is covered on the terminal portion 130 of the housing 110 from the rear, and further, the terminal cover 140 is fixed to the rear surface of the housing 110.

  Thereafter, as shown in FIG. 4, the user attaches a finger to the operation piece 150 formed on the movable portion 147 of the lower locking portion 146 of the terminal cover 140 and moves the movable portion 147 downward, and the state Then, the locking claw 144 of the upper locking portion 145 is locked to the locking piece 210 a of the mounting rail 200. Then, after bringing the rear surface of the terminal cover 140 into contact with the surface of the mounting rail 200, as shown in FIG. 5, a finger is attached to the operation piece 150 of the lower locking portion 146 to move the movable portion 147 upward. Then, the locking claw 147a is locked to the locking piece 210b of the mounting rail 200. As a result, the upper locking portion 145 and the lower locking portion 146 are locked to the mounting rail 200, and thus the embedded electric device 100 is fixed to the mounting rail 200 of the construction surface 300. Thereby, the terminal cover 140 can be attached to the attachment rail 200, and furthermore, the embedded electrical device 100 can be attached to the construction surface 300.

  Therefore, the upper locking portion 145 of the terminal cover 140 is locked to the locking piece 210a of the mounting rail 200 even in a place where the construction surface 300 has no opening and the embedded electric device 100 could not be installed. Thereafter, the embedded electrical device 100 can be easily attached to the attachment rail 200 only by the operation of engaging the lower engagement portion 146 of the terminal cover 140 with the engagement piece 210b of the attachment rail 200.

  Moreover, since the terminal cover 140 of this embodiment is provided with the upper latching | locking part 145 and the lower latching | locking part 146 in the cover main body 141, it is not necessary to add an attachment means separately. Accordingly, the embedded electrical device 100 can be installed on the mounting rail 200 provided on the construction surface 300 without increasing the number of parts of the embedded electrical device.

(Embodiment 2)
The embedded electric apparatus of this embodiment will be described with reference to FIGS. The embedded electric device 100 of the present embodiment is different in configuration from the terminal cover 140 of the first embodiment, and is characterized in that an insertion hole through which a screw is inserted is formed in the terminal cover. Since other structures are the same as those in the first embodiment, the same reference numerals are given to the same components, and descriptions thereof are omitted.

  In the terminal cover 140b, in addition to the terminal cover 140 of the first embodiment, fixing portions 170L and 170R are formed to protrude from the left and right sides at the substantially center in the vertical direction of the cover main body 141, and the fixing portions 170L and 170R are formed on the fixing portions 170L and 170R. Are formed with projecting portions 171 and 171 projecting rearward. And the protrusion dimension to the back of the protrusion parts 171 and 171 is formed larger than the protrusion dimension of the upper latching | locking part 145 and the lower latching | locking part 146 provided above and below the terminal cover 140b.

  Further, insertion holes 160 and 160 (second mounting means) for inserting the screws 510 and 510 are formed at substantially the center of the projecting portions 171 and 171.

  Here, in the terminal cover 140b, the screws 500 are inserted into the four insertion holes 142 of the cover body 141 from the rear surface side, and the screws 500 are screwed into the screw holes 114 at the four corners formed on the rear surface of the housing 110. As a result, the terminal cover 140 b is covered with the terminal portion 130 from the rear, and further, the terminal cover 140 b is fixed to the rear surface of the housing 110.

  Then, as shown in FIG. 8, the screws 510 and 510 are inserted into the insertion holes 160 and 160 of the fixing portions 170 </ b> L and 170 </ b> R from the front of the terminal cover 140 b attached to the housing 110 to be provided on the construction surface 300. Screws 510 and 510 are screwed into the screw holes 310 and 310, respectively. As a result, the terminal cover 140 b is directly attached to the construction surface 300, and thus the embedded electric device 100 is attached to the construction surface 300.

  As described above, the terminal cover 140b of the present embodiment is formed with the insertion holes 160 and 160 through which the screws 510 and 510 are inserted into the left and right fixing portions 170L and 170R of the cover main body 141. Thereby, even when the construction surface 300 has no opening and the embedded electric device 100 cannot be attached to the construction surface 300, the screws 510 and 510 are inserted into the insertion holes 160 and 160 of the terminal cover 140b from the front. The terminal cover 140 can be attached to the work surface 300 by screwing the screws 510 and 510 into the screw holes 310 and 310 provided in the work surface 300. The embedded electric device 100 can be directly attached to the construction surface 300 without increasing the number of parts.

  Further, even when the construction surface 300 is made of wood or the like, a wood screw (not shown) is inserted through the insertion holes 160 and 160 of the terminal cover 140b from the front, and the wood screw is screwed into the construction surface 300. The terminal cover 140b can be attached to the construction surface 300.

  Moreover, the terminal cover 140b of this embodiment can attach the terminal cover 140b to the attachment rail 200 using the upper latching | locking part 145 and the lower latching | locking part 146 of the cover main body 141 similarly to Embodiment 1. FIG. Accordingly, the embedded electrical device 100 can be easily attached to the mounting rail 200 provided on the construction surface 300 without increasing the number of parts of the embedded electrical device.

  As described above, the terminal cover 140b of the present embodiment includes the upper locking portion 145 and the lower locking portion for locking the terminal cover 140b to the locking pieces 210a and 210b of the mounting rail 200 provided on the construction surface 300. 146 and two attachment means of the insertion hole 160 for attaching the terminal cover 140b directly to the construction surface 300 are provided. Therefore, even when there is no opening in the construction surface 300 and the embedded electrical device 100 cannot be installed by being embedded in the construction surface 300, by using either one of the two attachment means, the embedded type Without increasing the number of parts of the electric device, the embedded electric device 100 can be attached to the mounting rail 200 or directly to the construction surface 300, and the user can attach the embedded electric device 100. The method can be chosen freely.

FIG. 3 is a rear perspective view showing attachment of the terminal cover of Embodiment 1 to the embedded electric device. It is a front perspective view after attaching to an embedded type electric equipment same as the above. It is a rear view same as the above. It is a figure which shows the state which latched the upper locking part same as the above to the attachment rail. It is a figure which shows the state which latched the lower latching part same as the above to the attachment rail. It is sectional drawing of a mounting rail, and a front view. FIG. 10 is a rear perspective view showing attachment of the terminal cover of Embodiment 2 to an embedded electrical device. It is the figure which showed the attachment to a construction surface after attaching to the implantable electric equipment same as the above. It is a front perspective view of the conventional embedded type electric apparatus. It is the rear perspective view which showed the attachment to the construction surface of the conventional embedded type electric equipment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Embedded type electric equipment 110 Case 120 Operation surface 130 Terminal part 140 Terminal cover 140b Terminal cover 141 Cover main body 143 Support part 144 Locking claw (1st locking claw)
145 Upper locking part (first mounting means)
146 Lower locking part (first mounting means)
147a Locking claw (second locking claw)
160 Insertion hole (second attachment means)
200 Mounting rail

Claims (3)

A terminal for connecting wiring to one surface of the housing is provided, and the terminal is attached to one surface of an electrical device that can be embedded and disposed through the opening formed in the construction surface of the structure from the one surface of the housing. In the covering terminal cover,
The cover body, which is formed in a plate shape and is attached to one side of the electrical device with one surface facing the terminal,
A first attachment means that is provided on the other surface of the cover main body and is locked to both side edges of the long attachment rail installed on the construction surface to fix the cover main body to the attachment rail;
A terminal cover, comprising: at least one of second attachment means provided on the cover body and directly attaching the cover body to the construction surface. The first attachment means includes a first engagement claw that engages with one side edge of the attachment rail, and a second engagement claw that engages with the other side edge of the attachment rail,
The terminal cover according to claim 1, wherein the second attachment means is an insertion hole through which a screw to be screwed into the construction surface is inserted from one surface of the cover body. The second locking claw is slidable in a direction perpendicular to the longitudinal direction of the mounting rail,
In a state where the second locking claw is slid in the direction away from the first locking claw, the first locking claw is locked to one side edge of the mounting rail, and the cover body After the other surface is brought into contact with the mounting rail, the cover body is made by sliding the second locking claw in a direction approaching the first locking claw and locking it to the other side edge of the mounting rail. The terminal cover according to claim 2, wherein the terminal cover is fixed to the mounting rail.

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