JP7363673B2 - wall mounting device - Google Patents

Description

The present invention relates to a wall mounting device that is assembled into an opening provided in a wall.

Conventionally, Patent Document 1 discloses a mounting device and method for mounting it into an opening provided in a wall. The device has a support element with a support nose and a holding element with holding wings for assembling the mounting device on the wall. Furthermore, for assembly of the attachment device, it is arranged through the support element so as to be rotatable relative to the support element, with the support nose locking the rotation of the support element. Furthermore, a protective element is formed on the support element, and a plug connection is provided on the holding element, to which a connector can be connected.

Then, after the holding element and the holding wing are fitted into the opening provided in the wall, the holding element and the holding wing are rotated, so that the wall surface is held between the holding wing and the support element. In this way, the wall mounting device can be assembled to the opening provided in the wall. Furthermore, before the wall-mounting device is assembled into the opening in the wall, the bayonet connection is covered by a protective element, but when the retaining element and the retaining wing are rotated, the bayonet connection is exposed. exposed from the protective element. This allows connection of the connector to the bayonet connection.

Patent No. 5579184

The wall mounting device described in Patent Document 1 includes a protective element so that the connector cannot be connected to the insertion connection portion until the installation of the wall mounting device into the opening provided in the wall is completed. By providing this protective element, assembly can be guaranteed, but the large size of the protective element obstructs the connector connection work. Further, since the connector cannot be connected until after the wall mounting device has been assembled into the opening provided in the wall, there are restrictions on the timing of connecting the connector.

In view of the above-mentioned points, it is an object of the present invention to provide a wall mounting device having a structure that allows assembly to be guaranteed and improves workability by eliminating the protective element.

In order to achieve the above object, the invention according to claim 1 is a wall mounting device that is assembled to an opening (101) provided in a wall (100), and is fixedly arranged with respect to the wall. The fixed side includes a plate-shaped base plate (10) in which a through hole (11) is formed, and a holding element (21) having a support wing (23) fitted into the through hole. It has a disk-shaped wing rotor (20) serving as a movable side that is rotatable relative to a base plate as a shaft (22), and a connector (60) from which a terminal (50) is exposed.

Then, the support wing is fitted into the through hole with one side of the wing rotor facing one side of the base plate, the base plate and the wing rotor are integrated, and the connector is placed on the side of the wing rotor opposite to the base plate. A movable side contact (26) is provided on one surface of the wing rotor on the base plate side, and a fixed side contact (26) is provided on one surface of the base plate on the wing rotor side. (15) is provided. In addition, among the movable side contacts and fixed side contacts, the contact provided on either the fixed side or the movable side where the connector is integrated is considered a terminal connection contact to which the terminal is connected, and is Before the wing rotor is rotated relative to the base plate, the movable side contact and the fixed side contact are in a non-conducting state, and after the wing rotor is assembled to the opening and rotated relative to the base plate, the movable side contact and the fixed side contact are non-conducting. The movable side contact and the fixed side contact are in a conductive state, and the non-conductive state and the conductive state are confirmed through the terminal.

In this way, the fixed side contacts are provided on the base plate, and the movable side contacts are provided on the wing rotor. The fixed side contact and the movable side contact are not electrically connected before the wall mounting device is assembled into the wall opening, and the fixed side contact and the movable side contact are electrically connected after the installation. . Therefore, by simply checking the continuity between the fixed side contact and the movable side contact through the terminal, we can guarantee the installation by confirming whether the wall mounting device is properly assembled into the opening in the wall. It can be carried out. That is, if the assembly is not completed, the fixed side contact and the movable side contact are not electrically connected, and continuity cannot be confirmed, so that it is possible to detect that the assembly is not completed.

Therefore, while ensuring assembly, it is possible to eliminate protective elements that cover the connector, eliminating restrictions on connection timing, and improving work efficiency when assembling the pressure sensor device. becomes.

Note that the reference numerals in parentheses attached to each component etc. indicate an example of the correspondence between the component etc. and specific components etc. described in the embodiments to be described later.

FIG. 1 is a perspective view of a pressure sensor device according to a first embodiment of the present invention. 2 is a partial cross-sectional view of the pressure sensor device shown in FIG. 1. FIG. FIG. 2 is an exploded view of the pressure sensor device shown in FIG. 1; FIG. 2 is a diagram showing the base plate and the wing rotor in separate drawings before assembly, in which (a) is a view of the base plate seen from above, and (b) is a view of the wing rotor seen from above. It is a figure showing the state where a pressure sensor device was assembled to an opening of a wall. FIG. 2 is a diagram showing the base plate and the wing rotor in separate drawings after assembly, in which (a) is a view of the base plate seen from above, and (b) is a view of the wing rotor seen from above.

Embodiments of the present invention will be described below based on the drawings. Note that in each of the following embodiments, parts that are the same or equivalent to each other will be described with the same reference numerals.

(First embodiment)
A wall mounting device according to a first embodiment of the present invention will be described. Here, a pressure sensor device assembled into an opening provided in a wall will be described as an example of the wall mounting device, but wall mounting devices other than the pressure sensor device may be used.

The pressure sensor devices shown in FIGS. 1 to 6 are used to detect activation of a side airbag for a vehicle. For example, a pressure sensor device is attached to an inner panel attached to the inside of a side door of a vehicle, and sends a detection signal according to the pressure in the door interior space to be detected to an airbag electronic control unit (hereinafter, airbag ECU). ). As a result, the airbag ECU detects the pressure change in the door interior space that occurs during a collision with the door based on the detection signal from the pressure sensor device, and protects the occupant by activating the side airbag. .

Specifically, the pressure sensor device includes a base plate 10, a wing rotor 20, a pressure sensor IC 30, a printed circuit board 40, a terminal 50, a connector 60, and the like.

The base plate 10 is composed of a disc-shaped member. As shown in FIG. 3, a through hole 11 is formed inside the base plate 10, and a holding element 21, which will be described later and is formed on the wing rotor 20, can be fitted into this through hole 11. In the case of the present embodiment, the through hole 11 is constituted by a substantially rectangular opening whose longitudinal direction is one direction in the planar direction of the base plate 10 and whose transverse direction is perpendicular to the longitudinal direction. Hereinafter, as shown in FIG. 3, the longitudinal direction of the through hole 11 in the planar direction of the base plate 10 will be referred to as the X direction, the lateral direction will be referred to as the Y direction, and the normal direction to the XY plane will be referred to as the Z direction.

The through hole 11 of the base plate 10 has a central hole 11a whose opening size is partially enlarged by opening in a circular shape at the center. This central hole 11a is an opening for accommodating the central shaft 22 of the holding element 21 in the wing rotor 20.

Further, if the side of the base plate 10 on which the portion of the wing rotor 20 other than the holding element 21 is arranged is the back surface, and the opposite side is the front surface, the seal portion 14 arranged so as to surround the through hole 11 is provided on the front surface side. It is equipped. The seal portion 14 is provided to seal the gap between the wall and the base plate 10 when the wall mounting device is assembled into the opening in the wall.

Further, the outer diameter of the base plate 10 is made slightly larger than the outer diameter of the wing rotor 20. A peripheral wall 16 protruding toward the wing rotor 20 is formed on the outer edge of the back surface of the base plate 10, and as shown in FIGS. 1 and 2, the wing rotor 20 is inserted into the peripheral wall 16. It has become. As shown in FIGS. 1 and 3, an engaging claw 17 is formed in a part of the surrounding wall 16, and when the base plate 10 and the wing rotor 20 are assembled, the engaging claw 17 causes the base plate 10 and the wing rotor 20 to are integrated. Note that even after the base plate 10 and the wing rotor 20 are integrated, relative rotation between the base plate 10 and the wing rotor 20 is possible.

Furthermore, as shown in FIGS. 2 and 4(a), a fixed side contact 15 is provided on the back surface of the base plate 10. The fixed side contact 15 is brought into contact with a movable side contact 26 provided on the wing rotor 20 side, which will be described later. As described later, the movable contact 26 is a contact divided into two parts, but the fixed contact 15 is composed of one contact whose dimensions are such that it can come into contact with both of the two movable contacts 26. has been done. The fixed contact 15 is formed at a position where the fixed contact 15 and at least one of the two movable contacts 26 do not yet come into contact with each other when the holding element 21 is fitted into the through hole 11. Then, when the holding element 21 is rotated around the central axis of the base plate 10 as described later, the fixed side contact 15 is formed at a position where both of the two movable side contacts 26 come into contact.

The wing rotor 20 corresponds to a support element, is made of an insulating material such as resin, and integrally holds the pressure sensor IC 30, the printed circuit board 40, the terminal 50, and the connector 60. The wing rotor 20 is disk-shaped, and has a structure in which one side is the front side, the opposite side is the back side, and the holding element 21 is provided on the front side.

The holding element 21 has a central axis 22 and support wings 23 that are enlarged in the radial direction from the central axis 22, ie, in the X direction in FIG. The central axis 22 has a substantially cylindrical shape and is disposed within the central hole 11a of the base plate 10 described above.

A pressure introduction hole 24 that penetrates the front and back surfaces of the wing rotor 20 is formed in the support wing 23 and the center shaft 22 . Through this pressure introduction hole 24, the pressure in the door interior space can be introduced from the front side of the wing rotor 20 to the back side.

Further, the back side of the wing rotor 20 is shaped to match the shape of the connector 60 and the like. A pressure sensor IC 30, a printed circuit board 40, and a terminal 50 are fixed to the back side of the wing rotor 20 so as to be accommodated in a connector 60. Two support parts 25 extending in the Z direction are arranged on the back side of the wing rotor 20, and the connector 60 is arranged between the two support parts 25 and integrated. Therefore, the wing rotor 20, the connector 60, etc. can rotate integrally.

Furthermore, as shown in FIG. 4(b), two movable side contacts 26 are exposed on the front side of the wing rotor 20. The two movable side contacts 26 may be formed at different positions and at a position where they come into contact with the fixed side contact 15 when the holding element 21 is rotated around the central axis of the base plate 10 as described later. In the form, they are arranged in a circumferential direction. As shown in FIG. 2, the movable side contact 26 is constructed by exposing a part of the wiring part 27 provided so as to penetrate from the front side of the wing rotor 20 to the back side on the front side of the wing rotor 20. has been done. The wiring portion 27 is integrated with the wing rotor 20 by, for example, integral molding. The wiring portion 27 is electrically connected to a test pattern included in a wiring pattern (not shown) formed on the printed circuit board 40.

Further, as shown in FIG. 1, a protrusion 28 that constitutes a part of the rotation lock portion is formed on the outer circumferential surface of the wing rotor 20. During assembly, the stopper 18 formed on the inner circumferential surface of the peripheral wall 16 of the base plate 10 crosses over the protrusion 28 and engages with it, thereby locking relative rotation between the base plate 10 and the wing rotor 20. In other words, the protruding portion 28 and the stop portion 18 constitute a locking portion. When the holding element 21 is fitted into the through hole 11 and the wing rotor 20 is not yet rotated relative to the base plate 10, the projection 28 does not engage with the stop 18. Then, when the wing rotor 20 is rotated relative to the base plate 10, the stop portion 18 rides over the protrusion 28, and the protrusion 28 engages with the stop portion 18 when the assembly is completed or just before that.

As described above, when the assembly is completed, the fixed side contact 15 and the movable side contact 26 will be electrically connected, but the electrical connection is not completed before the protrusion 28 and the stopper 18 are engaged. Then it is preferable. For example, assume that the state where the holding element 21 is only fitted into the through hole 11 but not rotated is 0°, and the angle at which the assembly is completed is when the wing rotor 20 is rotated by a predetermined angle from there. In this case, the stop portion 18 is made to cross over and engage the protrusion 28 about 1 to 2 degrees before the predetermined angle at which the assembly is completed. More preferably, conduction between the fixed contact 15 and the movable contact 26 is started when more than half of the stopper 18 passes over the protrusion 28 in the rotational direction.

The pressure sensor IC 30 is a semiconductor chip formed with a pressure sensor element, and is also integrally provided with a control section such as a signal processing section as required. The pressure sensor IC 30 outputs a detection signal corresponding to the pressure in the door interior space. Then, the pressure sensor IC 30 is mounted on the printed circuit board 40 and electrically connected to the terminal 50 through the printed circuit board 40, so that the detection signal of the pressure sensor IC 30 is transmitted through the terminal 50 to the airbag ECU provided outside. .

The printed circuit board 40 is for mounting the pressure sensor IC 30 and electrically connecting it to the terminal 50, and has a wiring pattern forming an electric circuit (not shown) formed thereon. Each part of the pressure sensor IC 30 is electrically connected to the printed circuit board 40 by, for example, wire bonding. Note that, as described above, a control section such as a signal processing section can be formed in the pressure sensor IC 30, but the control section can also be mounted on this printed circuit board 40.

Furthermore, an inspection pattern is formed on the printed circuit board 40. The test pattern is a pattern that is non-conductive before the two movable contacts 26 and the fixed contact 15 are electrically connected, and conductive when the two movable contacts 26 and the fixed contact 15 are electrically connected. Here, the test pattern is incorporated into the wiring pattern to which the detection signal of the pressure sensor IC 30 is transmitted, and the pressure sensor IC 30 does not operate unless the test pattern is conductive, but it can also be provided separately from the wiring pattern.

The terminal 50 is connected to a desired position of a wiring pattern or a test pattern formed on the printed circuit board 40, and enables electrical connection with the outside of the pressure sensor device. The terminal 50 includes terminals for power supply, ground (GND), signal output, and the like. When the test pattern is incorporated into a part of the wiring pattern, the terminal 50 can be used for power supply, grounding, signal output, etc., and also for testing. Further, as described above, when the test pattern is provided separately from the wiring pattern through which the detection signal of the pressure sensor IC 30 is transmitted, a test terminal connected to the test pattern as the terminal 50 is also provided.

The connector 60 is a hollow member that constitutes a casing that accommodates the pressure sensor IC 30, the printed circuit board 40, and the terminal 50, and is made of, for example, hard insulating resin. Further, the connector 60 enables electrical connection between the pressure sensor IC 30 and the outside through the terminal 50 by being connected to an external connector (not shown).

Specifically, the connector 60 is configured to include a housing portion 61 having a substantially rectangular parallelepiped shape and a connector case 62 having an elongated cylindrical shape. The housing portion 61 has a hollow shape, and one surface on the upper side, that is, on the wing rotor 20 side, is open. The pressure sensor IC 30 and the printed circuit board 40 are housed in this open portion. Further, the tip of the wiring portion 27 provided in the wing rotor 20 on the opposite side from the movable side contact 26 is made to protrude into the housing portion 61, and is electrically connected to the printed circuit board 40. Furthermore, the pressure introduction hole 24 is communicated with the accommodating part 61, so that the pressure in the door interior space is guided to the accommodating part 61 side.

Furthermore, a partition wall 61a is formed in the storage portion 61, and the printed circuit board 40 is brought into close contact with the partition wall 61a. The inside of the housing part 61 is divided into two spaces 61b and 61c by the partition wall 61a and the printed circuit board 40, and the pressure sensor IC 30 is arranged in the space 61b on the wing rotor 20 side. When the pressure in the door interior space is led to the space 61b side through the pressure introduction hole 24, since the space 61b and the space 61c are partitioned in an airtight state, the pressure in the door interior space is introduced to the space 61c side. It is applied to the pressure sensor IC 30 on the space 61b side without passing through.

Note that the space 61b may be filled with the atmosphere, or may be filled with a filler. In that case, the pressure in the door interior space can be applied to the pressure sensor IC 30 via the filler.

The terminal 50 described above is provided so that one end thereof protrudes from the space 61c side into the space 61b, and is inserted into a through hole (not shown) formed in the printed circuit board 40, and soldered to fill the through hole. This connects it to the printed circuit board 40. Further, by bending the terminal 50 at a midway position in the X direction, the other end of the terminal 50 is extended toward the connector case 62 side.

The connector case 62 is provided at one end of the connector 60, and the other end of the terminal 50 is exposed from the connector case 62. By connecting an external connector to this connector case 62, the pressure sensor IC 30 can be electrically connected to the outside via the terminal 50.

The manner in which the pressure sensor device configured as described above is assembled into the opening formed in the wall will be described.

First, the base plate 10 is fitted into the wing rotor 20 in which the pressure sensor IC 30, the printed circuit board 40, the terminal 50, and the connector 60 are integrated. Specifically, as shown in FIG. 3, the holding element 21 and the through hole 11 of the base plate 10 are aligned, and the holding element 21 is inserted into the through hole 11. Then, when the wing rotor 20 pushes the engagement claws 17 away and fits into the surrounding wall 16, the engagement claws 17 return to their original positions due to the elastic reaction force and are caught on the end surface of the wing rotor 20, causing the wing rotor to 20 and the base plate 10 are integrated.

At this time, as shown in FIGS. 4(a) and 4(b), the fixed side contact 15 provided on the base plate 10 and the movable side contact 26 provided on the wing rotor 20 are located at different locations. and is not electrically connected.

In this state, after the holding element 21 is fitted into the opening 101 formed in the wall 100 as shown in FIG. 5, the holding element 21 is rotated. For example, the holding element 21 and the base plate 10 are grasped from both sides of the wall 100, and the holding element 21 is rotated relative to the base plate 10 as shown by the arrow in FIG. 6(a). Further, since the seal portion 14 stops the base plate 10 from rotating by coming into contact with the wall surface, the holding element 21 can be rotated relative to the base plate 10 simply by rotating the holding element 21. Thereby, the wing rotor 20, the connector 60, etc. can be rotated together with the holding element 21 while the base plate 10 remains stationary.

Therefore, as shown in FIG. 5, the pressure sensor device is assembled to the opening 101 provided in the wall 100 by sandwiching the wall 100 between the base plate 10 and the holding element 21.

At this time, as shown in FIGS. 6(a) and 6(b), the movable contact 26 provided on the wing rotor 20 moves while the position of the fixed contact 15 provided on the base plate 10 remains unchanged. Both of the movable contacts 26 are brought into contact with the fixed contacts 15. Therefore, the two movable contacts 26 and the fixed contacts 15 are electrically connected. Therefore, by checking continuity through the terminal 50, it is possible to ensure that the pressure sensor device is assembled to the wall 100.

As explained above, in the pressure sensor device of this embodiment, the fixed side contact 15 is provided on the base plate 10, and the movable side contact 26 is provided on the wing rotor 20. Before the pressure sensor device is assembled into the opening 101 of the wall 100, the fixed contact 15 and the movable contact 26 are made not to be electrically connected, and after the pressure sensor device is assembled, the fixed contact 15 and the movable contact 26 are I'm trying to make it conductive. Therefore, by simply checking continuity between the fixed side contact 15 and the movable side contact 26 through the terminal 50, it is possible to check whether the pressure sensor device is properly assembled into the opening 101 provided in the wall 100. We can provide an assembly guarantee. In other words, if the assembly is not completed, the fixed contact 15 and the movable contact 26 are not electrically connected, and continuity cannot be confirmed, so that it is possible to detect that the assembly is incomplete.

Therefore, while ensuring assembly, it is possible to eliminate the protective element that covers the connector 60, eliminating restrictions on connection timing, and improving work efficiency when assembling the pressure sensor device. It becomes possible.

(Other embodiments)
Although the present disclosure has been described based on the embodiments described above, it is not limited to the embodiments, and includes various modifications and modifications within equivalent ranges. In addition, various combinations and configurations, as well as other combinations and configurations that include only one, more, or fewer elements, are within the scope and scope of the present disclosure.

(1) For example, in the first embodiment, an example of the configuration of the fixed side contact 15 and the movable side contact 26 is given, but the configuration is not limited to this. In other words, one surface of the base plate 10 and one surface of the wing rotor 20 are integrated so as to face each other, but other structures may be used as long as contact points are provided on each surface of the base plate 10 and one surface of the wing rotor 20. The structure of More specifically, after the holding element 21 is fitted into the through hole 11 and before the holding element 21 is rotated, both contacts are non-conducting, and in the assembled state after the holding element 21 is rotated. Any structure is sufficient as long as it is conductive after attachment.

For example, if the fixed side contact 15 and the movable side contact 26 are not electrically connected before assembly but are electrically conductive after assembly, what position should they be formed in? It's okay if it's done. However, in order to prevent the movable contact 26 from becoming electrically conductive with the fixed contact 15 during rotation before completion of assembly, the fixed contact 15 and the movable contact should be connected at a position where the stopper 18 crosses over the protrusion 28 by more than half of the way. It is preferable that 26 be electrically conductive.

In addition, although the example in which the lock part is constituted by the stop part 18 and the protrusion part 28 was shown here, it is not limited to these. For example, a hole into which the protrusion 28 fits is formed in the inner peripheral surface of the peripheral wall 16 of the base plate 10, and the rotation of the base plate 10 and the wing rotor 20 is locked by fitting the protrusion 28 into the hole. A lock portion may be configured.

(2) Also, in order to alleviate the setting position crossing of the fixed side contact 15 and the movable side contact 26, it is preferable to install the fixed side contact 15 and the movable side contact 26 as close to the outer periphery of the base plate 10 and the wing rotor 20 as possible. preferable.

(3) Furthermore, it is preferable that the fixed side contact 15 and the movable side contact 26 are arranged above the center of rotation so that water does not accumulate at the contact positions. For example, a portion of the wing rotor 20 near the center axis 22 is recessed away from the base plate 10, and the fixed side contact 15 and the movable side contact 26 are positioned closer to the base plate 10 than the recessed position. In this way, it is possible to prevent water from accumulating at the contact position.

(4) Furthermore, a waterproof seal may be provided around at least one of the fixed contact 15 of the base plate 10 or the movable contact 26 of the wing rotor 20 so as to surround the contact. Even if you do this, water will still form at the contact point.

(5) Furthermore, in the first embodiment, the pressure sensor IC 30, the printed circuit board 40, the terminal 50, and the connector 60 are integrated with the rotating side, that is, the wing rotor 20. On the other hand, a structure may be adopted in which these are integrated with the fixed side, that is, the base plate 10. In that case, since the connector 60 and the like are fixed, the structure includes two fixed contacts 15 and one movable contact 26. Before assembly, that is, before the wing rotor 20 rotates, the movable contact 26 does not contact at least one of the fixed contacts 15, and after assembly, the movable contact 26 contacts both of the fixed contacts 15. It is preferable to have a structure in which conduction occurs.

In other words, the base plate 10 is a fixed side that is fixedly arranged with respect to the wall 100, and the wing rotor 20 is a movable side that is rotated with respect to the fixed side, but the connector 60 is on either the fixed side or the movable side. The number of fixed-side contacts 15 and movable-side contacts 26 is determined accordingly. In other words, if the connector 60 is integrated on the fixed side, the number of fixed contacts 15 should be two, and if it is integrated on the movable side, the number of movable contacts 26 should be two. Of the fixed side contact 15 and the movable side contact 26, a contact provided on either the fixed side or the movable side where the connector 60 is integrated is used as a terminal connection contact to which the terminal 50 is connected.

10 Base plate 11 Through hole 15 Fixed side contact 20 Wing rotor 21 Holding element 22 Central shaft 23 Support wing 26 Movable side contact 50 Terminal 60 Connector

Claims (4)

A wall mounting device that is assembled to an opening (101) provided in a wall (100),
a plate-shaped base plate (10) that is fixed to the wall and has a through hole (11) formed therein;
A disk serving as a movable side, which is provided with a holding element (21) having a support wing (23) fitted into the through hole, and is rotatable relative to the base plate about the axis of the holding element as a central axis (22). a shaped wing rotor (20);
a connector (60) in which the terminal (50) is exposed;
The support wing is fitted into the through hole so that one side of the wing rotor faces one side of the base plate, and the base plate and the wing rotor are integrated, and the connector is connected to the wing rotor. disposed on the side opposite to the base plate and integrated with either the movable side or the fixed side;
A movable contact (26) is provided on one surface of the wing rotor on the base plate side, and a fixed contact (15) is provided on one surface of the base plate on the wing rotor side,
Of the movable side contact and the fixed side contact, a contact provided on either the fixed side or the movable side where the connector is integrated is a terminal connection contact to which the terminal is connected,
Before the wing rotor is rotated relative to the base plate, which is before assembly into the opening, the movable contact and the fixed contact are in a non-conducting state, and after assembly into the opening. After the wing rotor is rotated relative to the base plate, the movable side contact and the fixed side contact are in a conductive state, and the non-conductive state and the conductive state are confirmed through the terminal. Device. Two terminal connection contacts are provided,
Of the movable side contact and the fixed side contact, the contact on the side that is not the terminal connection contact is not in contact with at least one of the two terminal connection contacts in the state before the assembly, and the The wall mounting device according to claim 1, wherein the wall mounting device is in contact with both of the two terminal connection contacts in a state after being attached. The movable side contact and the fixed side contact are arranged on the outer peripheral side of the base plate side of the wing rotor and the wing rotor side of the base plate, The wall mounting device according to claim 1 or 2. A waterproof seal is provided on at least one of one surface of the wing rotor on the base plate side around the movable side contact and one surface of the base plate on the wing rotor side around the fixed side contact. A wall mounting device according to any one of claims 1 to 3.

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