JP3060221B1 - Hot water circuit fittings - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To provide a pair of cylindrical plug portions (11) (1) for connecting a flow path.
2) and a plurality of terminals (1a) (1b) (1c) for electrical connection, a plug body (1) protruding in the same direction from the connection side bottom part (13), and plug parts (11) (12) A pair of hot water connection ports, each of which is detachably connected, and a plurality of electric connection portions, to which terminals (1a), (1b), (1c) are respectively detachably connected, are provided on the indoor side end surface, and the wall surface or floor surface is provided. For a hot water circuit connecting device consisting of a hot water outlet attached to the etc., from the hot water connection port plug section (11) (12)
After the cable is pulled out, the terminals (1a), (1b) and (1c) should not be short-circuited by the liquid leaking from the tips of the plugs (11) and (12). SOLUTION: Terminals (1a) (1b) (1c) are tightly fitted and held in a plug body (1), and a connection side end face (a protective cylinder (14)) of the terminals (1a) (1b) (1c). The area excluding the tip portion that electrically protrudes from the bottom surface portion (13) of the above-mentioned portion, which is electrically connected to the electric connection portion, is defined as an insulating film formation region (4).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a hot water circuit connecting device,
In particular, between the outdoor unit having the heating device and the indoor unit having the heat radiating device, the hot water circuit is connected through the through-hole formed in the wall or the floor, and the power cord and the control signal cable are connected. The present invention relates to a hot water circuit connecting device for electrically connecting the components.

[0002]

2. Description of the Related Art FIG. 5 is a front view of a hot water outlet (2) on the indoor side, and FIG. 6 is a perspective view of a plug body (1) connected thereto. As shown in FIG. 5, the hot water outlet (2) is installed so as to cover the wall hole (H ₀ ) formed in the wall (H) from the indoor side, and the outdoor unit ( (Not shown), and the outlet body (20) built in the hot water outlet (2) is provided with a pair of outdoor hot water pipes (not shown) extending from the outdoor unit. The hot water connection ports (21) and (22) to be connected are provided, and the other ends of the hot water connection ports (21) and (22) protrude toward the indoor side.
Further, an electric connection portion (2a) (2b) (2c) electrically connected to a remote control cable (not shown) extending from the outdoor unit is located between the hot water connection ports (21) and (22), and It is exposed to.

As shown in FIG. 6, a pair of indoor hot water pipes (31) and (32) extending from an indoor unit (3) for releasing heat of hot water into a room and a remote control cable (30) are provided on the plug body (1). ), And a cylindrical plug portion connected to the indoor hot water pipes (31) and (32), respectively.
(11) (12) and the projecting portions of the terminals (1a) (1b) (1c) electrically connected to the remote control cable (30) are provided with a protective cylinder (14) integrally provided on the casing (10). ). That is, the plugs (11) and (12) and the terminals (1
a), (1b) and (1c) are configured to protrude in the same direction from the bottom surface (13) of the protective cylinder (14).

The plugs (11) and (12) are inserted into the hot water connection ports (21) and (22) of the hot water outlet (2) in a watertight state, respectively, so that the outdoor hot water pipe and the indoor hot water pipe are inserted. (3
1) and (32) are connected in a flow path. Valves (not shown) for opening and closing these flow paths are respectively incorporated in the flow path following the hot water connection ports (21) and (22) and the flow path in the plug portions (11) and (12). When the plugs (11) and (12) are inserted into the hot water connection ports (21) and (22) deeper than a predetermined depth, each of the valve bodies opens, and the flow path in the outlet body (20) is opened. The flow paths in the plug portions (11) and (12) communicate with each other. Conversely, from the hot water connection port (21) (22) to the plug (11)
When (12) is pulled out, each of the valve bodies closes.

[0005] Also, a plug (11) to the hot water connection ports (21) (22).
Multiple terminals (1a) (1b) of plug body (1) with connection of (12)
(1c) is inserted into a plurality of electrical connections (2a), (2b), and (2c) provided in the outlet body (20) of the hot water outlet (2), and is electrically connected. I have.

[0006]

In this case, when the plugs (11) and (12) are pulled out from the hot water connection ports (21) and (22), each valve element closes, but the plug (11) is closed. If the valve element of (12) is pushed in due to mischief, etc., the valve element opens carelessly, and the plug part after being pulled out
(11) (12), indoor unit (3), and indoor hot water piping (3
1) The water remaining in (32) may leak out.

[0007] Water leaking from the plugs (11) and (12) collects on the bottom surface (13) of the plug body (1) in the protection tube (14), and the plug (1) is removed while the water leaks. If you leave it for a long time,
There is a disadvantage that the terminals (1a), (1b), and (1c) are short-circuited due to the water leakage. If the terminals (1a), (1b) and (1c) are short-circuited, the indoor unit (3) may malfunction when reused.

According to the present invention, there is provided a plug body in which a pair of cylindrical plug portions for flow path connection and a plurality of terminals for electrical connection project in the same direction from a connection side end face, Hot water comprising a pair of hot water connection ports that are detachably connected and a plurality of electrical connection sections to which the terminals are detachably connected, respectively, are provided on the indoor side end surface and a hot water outlet that is attached to a wall surface, a floor surface, or the like. Circuit connector]
An object of the present invention is to prevent the terminals of the plug body from being short-circuited even if liquid leaked from the plug portion inadvertently accumulates on the connection side end surface after the plug portion is pulled out from the hot water connection port. And <1>

[0009]

Means for Solving the Problems In order to solve the above-mentioned problems, the solution of the present invention is as follows. "The terminal is tightly fitted and held in the plug body. An insulating film was formed in a range excluding a protruding portion protruding from the end surface and excluding a tip portion electrically connected to the electric connection portion. "

The term "terminal closely fitted to the plug body" means that the terminal protrudes from the connection-side end surface of the plug body in a closely fitted state. Liquid or other liquid does not enter the plug body from the end. The above solution works as follows. When the plug of the plug body is pushed in by mischief or the like after the plug is pulled out from the hot water connection port, a liquid such as hot water leaks out of the plug and flows down and accumulates on the connection side end face of the plug. However, even in this case, since an insulating film is formed on at least the protruding portion protruding from the connection-side end face, electricity does not flow between the terminals via the liquid. In addition, since the terminal portion of the terminal electrically connected to the electrical connection portion of the hot water outlet is not provided with an insulating coating, the electrical connection to the hot water connection port is not affected at all, and the electrical connection is performed as before. be able to.

[0011] Further, since the terminal is tightly fitted and held in the plug body to the extent that liquid such as water does not enter, even if the liquid accumulates on the connection-side end face, the terminal end of the terminal may be used. No liquid will enter the plug body from the plug.

[0012]

According to the present invention, even if the plug body is left for a long period of time while water leaking after the plug portion is pulled out from the hot water connection port remains on the connection-side end face from which the terminal protrudes.
Since there is no short circuit between the terminals and no water leaks into the plug body, an electrical malfunction is prevented when the indoor unit is reused. Further, corrosion of the terminal can be prevented. <Claim 2> In the above item 1, the "the terminal is formed with the insulating coating over the entire area excluding the front end portion and a rear end portion for electrically connecting a remote control cable from an indoor unit". Since the insulating coating is formed over the entire intermediate portion except for the front end portion and the rear end portion of the terminal, even if the length of the terminal protruding from the connection side end surface slightly changes, even if a slight change occurs. The entire area of the protruding base end is in a mode in which the insulating coating is surely formed. Therefore, a short circuit between terminals due to water leakage can be reliably prevented. Also,
Even if there is an inconvenience that a small amount of water drops enter the inside through a small gap between the connection side end surface and the terminal, the water drops are very small and almost all of the terminals housed in the plug body are insulated. The terminal is rusted by the small water droplets that have entered,
There is no electrical bearing. In order to provide an area where no insulating coating is formed at the rear end of the terminal, an insulating coating is formed over the entire area excluding the front end, and the insulating coating formed at a predetermined area at the rear end is peeled off. Good. The tip of the remote control cable is connected to the stripped portion by soldering or the like.

The insulating film can be formed, for example, by "forming by Teflon processing".

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. FIG. 1 is a perspective view of a plug body (1) according to an embodiment of the present invention, FIG. 2 is a sectional view thereof, and FIG. 3 is a terminal (40) of a terminal unit (40) housed in the plug body (1). 1a) (1b) (1c) is a plan view of the terminal unit (40) showing a state where the electrical connection section (2a) (2b) (2c) of the hot water outlet (2) is connected to the hot water outlet (2). It is principal part sectional drawing.

The hot water outlet (2) and the plug body (1)
It is assumed that it constitutes a hot water connector provided in the hot water heating device. The plug body (1) is made of a pair of indoor-side hot water pipes (31) and (32) extending from the indoor unit (3) that emits heat of hot water and the distal end of a remote control cable (30), as in the conventional case. It is attached to.

The plug body (1) has plug portions (11) and (12)
And a casing (10) having a protective cylinder (14) that entirely surrounds the protruding portions of the terminals (1a), (1b), (1c), and the indoor-side hot water pipe (31) (32) is In the casing (10), the plugs (11) and (12) are
(11) and (12) are the protective cylinders (1) which are the connection-side end faces of the plug body (1).
It protrudes from the bottom part (13) of 4) in a state of being arranged horizontally.
From the bottom part (13) between the plug parts (11) and (12) and near the upper side of the protection cylinder (14), plate-like terminals (1a) (1b) electrically connected to the remote control cable (30) (1c) protrudes in the same direction as the plug portions (11) and (12).

The tip (15a) side of the terminals (1a) (1b) (1c) is formed in an elongated plate-like body connected to the electric connection portions (2a) (2b) (2c) of the hot water outlet (2). And the rear end (15b)
As shown in FIG. 2, the width is increased only to one side, and is a wide portion wider than the width at the tip (15a) side. The terminals (1a) (1b) (1c)
Teflon processing is applied to the entire area of the middle part except for the part of 5a) and the rear end part (15b). As a result, the entire area of the intermediate portion except for a part of the front end (15a) and the rear end (15b) of each of the terminals (1a), (1b), (1c) becomes an insulating film forming area (4).
It has become.

The Teflon processing is performed on the terminals (1a) (1b) (1
It is sufficient to apply it to the entire area excluding the front end (15a) of c) and to forcibly peel off Teflon at a part of the rear end (15b). As a result, portions of the front end (15a) and the rear end (15b) of the terminals (1a) (1b) (1c) become an insulating film non-formed area (41) from which Teflon has been peeled off, and this rear end (15b )
(41), as shown in FIG. 2, the tip of the remote control cable (30) is soldered, so that the remote control cable (30) is electrically connected to each terminal (1a) (1b) (1c). It will be.

The terminals (1a), (1b) and (1c) are housed in the casing (10) as a part of the terminal unit (40). The terminal unit (40) is the terminal (1a) (1b) (1c)
And the front end (15a) and rear end of these terminals (1a) (1b) (1c).
(15b) are housed in a juxtaposed state so that they protrude forward and backward, respectively.
A case body (16) in which insertion holes for terminals (1a), (1b), and (1c) are formed, and a case (16) fitted into a predetermined portion of the upper opening portion of the case body (16) and the terminals (1a) ( 1b) A stopper that holds (1c) in the case body (16) so that it cannot be pulled backward.
(17).

The insertion holes formed in the front wall (18) of the case body (16) accommodate the terminals (1a), (1b), and (1c) in the case body (16) so as to be arranged in a flat direction. The terminal (1
a) It is assumed that each of the tip portions (15a) of (1b) and (1c) is formed in a size that can be fitted in a tight fit state. To assemble this terminal unit (40), first, the terminal (1a)
(1b) Case body (16) such that the one side of (1c) is on the upper side
Of the terminals (1a), (1b), and (1c) into the insertion holes provided in the front wall (18) of the case body (16). Since the height from the upper surface at the bottom of the case body (16) to the lower surface at the top surface is set to substantially match the width of the tip (15a), the terminals (1a) (1b) (1c)
When a predetermined depth is inserted from the rear side of the case body (16), the vicinity of the upper end of the rear end part (15b) wider than the width of the tip part (15a) is near the center rear end of the top surface of the case body (16). , And the terminals (1a), (1b), and (1c) are accommodated in the state of being prevented from falling forward.

In this housed state, the terminals (1a) (1b) (1c)
This is a state in which the front end (15a) protrudes from the front wall (18) of the case body (16) while being closely fitted to the case body (16). In addition, the tip (15a) of the terminal (1a) (1b) (1c)
As shown in each figure, the non-insulating film forming area (41) and a part of the insulating film forming area (4) are respectively projected so as to protrude forward from the front wall (18) of the case body (16). Is assumed to be set.

Then, a stopper (18) is fitted into a predetermined portion of the upper open portion of the case (16). The fitting positions are the terminals (1a) and (1b) accommodated in the case body (16) in a predetermined posture.
The terminals (1a), (1b), and (1c) are set at the rear of the case body (16) by stoppers (18). It will be kept in the retaining state.

As shown in FIG. 2, the terminal unit (40) accommodating the terminals (1a), (1b) and (1c) in a predetermined posture is provided inside the casing (10) of the plug body (1). As a result, the front wall (18) of the terminal unit (40) forms a part of the bottom portion (13) of the protective tube (14). This allows
From the bottom surface (13) of the protective cylinder (14), the tip (15a) including the insulating film formation area (4) of the terminals (1a) (1b) (1c) protrudes horizontally in a posture parallel to the flat direction. Thus, a plug body (1) is formed.

In other words, the casing of the plug body (1)
An insulating film forming area (4) is formed on the base end side of the terminals (1a) (1b) (1c) projecting from the bottom part (13) of the protective cylinder (14) provided in (10). It becomes an aspect. On the other hand, hot water outlet
As (2), the same as the conventional one such as the one shown in FIG. 5 can be adopted.

FIG. 3 shows an outlet main body (20).
Electrical connection parts (2a) (2b) electrically connected to the distal end of the outdoor remote control cable extending from the outdoor unit on the indoor end surface (23) of the
The tip of (2c) is open, and the terminals (1a) (1b) (1c) of the plug body (1) are connected to the electrical connection portions (2a) (2b) (2c).
Are connected, the remote control cable (30) extending from the indoor unit (3), the terminals (1a) (1b) (1c), and the electrical connection (2
a) Control signals and the like are transmitted between the indoor unit (3) and the outdoor unit via (2b) and (2c) and further through the outdoor remote control cable.

In this embodiment, the terminal (1a)
Only the region (41) where the insulating film is not formed at the tip (15a) of (1b) and (1c) is inserted into the electrical connection portions (2a), (2b) and (2c) to be electrically connected. Plug the plug (1) into a hot water outlet.
When connected to (2), the lock lever (24) provided in the casing (10) of the plug body (1)
The structure (2) is adapted to engage with an engaged portion (not shown) in a hole (36) (see FIG. 5) opened to the indoor side end surface (20a) in a retaining state.

The lock lever (24) is provided below the terminal unit (40), and is rotatably supported in the casing (10). ) Protrudes from the bottom portion (13). The distal end is provided with a claw that engages with the engaged portion, and urges the lock lever (24) in a direction in which the engagement between the claw and the engaged portion is maintained. A spring (25) is provided.

On the top surface of the plug body (1), a casing (10)
An operation member (26) penetrating into the inside protrudes, and by operating the operation member (26), the lock lever (24) becomes rotatable, thereby releasing the engagement between the claw portion and the engaged portion. be able to. In the case shown in FIG. 3, the plug part of the plug body (1)
When (11) and (12) are connected to the hot water connection port of the hot water outlet (2), the tip (15a) of the terminal (1a) (1b) (1c) of the plug body (1)
Only the electrical connection portions (2a), (2b), and (2c) are respectively connected to the insertion ports, and the claw portion of the lock lever (24) is engaged with the engaged portion of the hot water outlet (2). The hot water outlet (2) on the indoor side (23) and the protective cylinder (1
Terminals (1a) (1b) (1c) protruding from the front wall (18) between the bottom part (13) of 4) (the front wall (18) of the terminal unit (40)).
A gap corresponding to the length of the insulating film forming area (4) is formed.

When the hot water heater is not used, the plug (1) is removed from the hot water outlet (2). That is, by operating the operating member (26), the engagement of the lock lever (24) with the engaged portion is released, and the plug portions (11) and (12) are pulled out from the hot water connection port, and Connection (2
a) Terminals (1a) (1b) (1c) are pulled out from (2b) (2c). During this withdrawal, each of the valve shafts in the hot water connection port of the hot water outlet (2) and each of the valve shafts in the plug portions (11) and (12) are separated from each other, and each valve body in the hot water connection port and the plug portion ( 11) Each valve element in (12) closes.

When the plug of the plug (11) or (12) after being pulled out is pressed by mischief or the like, the plug (11)
The valve of (12) opened carelessly, and the plug (11) (1
Warm water remaining in 2) may overflow onto the bottom portion (13) in the protective cylinder (14). This is the case where the liquid overflowing from the bottom (13) reaches the terminals (1a) (1b) (1c), and the plug body (1) is stored without wiping the liquid. Even in the case where the terminals (1a), (1b) and (1c) protrude from the terminal (1a), (1b) and (1c), the protruding base ends of the terminals (1a), (1b) and (1c) form an insulating film forming area (4). ) Can be prevented, and malfunction when the indoor unit (3) is reused can be prevented.

The terminals (1a), (1b) and (1c) are connected to the bottom portion (13).
Case body (16) of the terminal unit (40) that forms part of
Liquid that has overflowed onto the bottom surface (13) because the liquid
(1) It does not invade. Therefore, these terminals (1a)
Corrosion of (1b) and (1c) is also prevented.

When the remaining liquid is a liquid other than water that does not evaporate, the above-mentioned effects are more effective. FIG. 4 shows another type of hot water outlet (2).
Only the outlet body (20), which indicates that the terminals (1a) (1b) (1c) of the plug body (1) are connected to the electrical connections (2a) (2b) (2c) of the outlet body (20) It is sectional drawing.

In this embodiment, an intermediate member (33) made of silicon rubber is built in the outlet body (20), and the electrical connection portions (2a) ( 2b)
(2c) is accommodated. The intermediate member (33) includes three first cylindrical portions (33a) protruding toward the indoor side from the indoor side end surface (23) of the outlet body (20), and a rear portion of the first cylindrical portion (33a). Three second cylindrical portions (33b) communicating with each other are formed, and a terminal of the plug body (1) is provided in the first cylindrical portion (33a).
(1a), (1b), and (1c) can be inserted exactly, respectively, and the electrical connection portions (2a), (2b), and (2c) can be just accommodated in the second cylindrical portion (33b). .

That is, in the hot water outlet (2) of this embodiment, the electric connection portions (2a), (2b), and (2c) are connected to the first cylindrical portion (33).
a), the terminals (1a), (1b), and (1c) are respectively inserted into the first cylindrical portion (33a), and the first cylindrical portion (33a) is inserted into the first cylindrical portion (33a). ) At the end
(1a) (1) Front wall (18) of terminal unit (40) from which (1c) protrudes
Are in contact with the terminals (1a), (1b), and (1c).
(2b) The connection state to (2c) is established.

In this device, when the plug body (1) and the hot water outlet (2) are connected, the terminals (1a), (1b) and (1c) projecting from the front wall (18) of the terminal unit (40) are connected. The insulating film formation area (4) on the base end side is an intermediate member (3
Since the connection is protected by the first cylindrical portion (33a) of 3), the connection state is stabilized. Also, since the electrical connection parts (2a) (2b) (2c) are located deeper than the indoor end surface (23) of the hot water outlet (2), carelessly from inside the plug parts (11) (12). Even if the overflowing liquid splatters toward the hot water outlet (2), there is no inconvenience that the liquid adheres to the electrical connection portions (2a), (2b) and (2c).

[Brief description of the drawings]

FIG. 1 is a perspective view of a plug body according to an embodiment of the present invention.

FIG. 2 is a sectional view of a plug body according to the embodiment of the present invention.

FIG. 3 is a plan view of a terminal unit in the plug body showing a state where the plug body is connected to the hot water outlet, and a cross-sectional view of a main part of the outlet body.

FIG. 4 is a plan view of a terminal unit in the plug body showing a state where the plug body is connected to another hot water outlet, and a cross-sectional view of a main part of the outlet body.

FIG. 5 is a front view of a conventional hot water outlet.

FIG. 6 is a perspective view of a partially cut-out portion of a conventional plug body.

[Explanation of symbols]

 (1) ・ ・ ・ ・ ・ ・ ・ Plug body (11) (12) ・ ・ ・ ・ ・ Plug (13) ・ ・ ・ ・ ・ ・ ・ Connection side end face (15a) ・ ・ ・ ・ ・ ・ Tip ( 1a) (1b) (1c) Terminal (2) Hot water outlet (21) (22) Hot water connection port (2a) (2b) (2c) Electrical connection (4)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F24D 3/10

Claims (3)

(57) [Claims] 1. A plug body in which a pair of cylindrical plug portions for flow path connection and a plurality of terminals for electrical connection protrude in the same direction from a connection side end face, and each of the plug portions is detachable. A hot water circuit connector comprising a pair of hot water connection ports to be connected and a plurality of electrical connection portions to each of which the terminals are detachably connected, the hot water outlet being provided on an indoor side end face and a hot water outlet attached to a wall surface, a floor surface, or the like. In the above, the terminal is tightly fitted and held in the plug body, and is a protruding portion of the terminal protruding from the connection side end surface, excluding a tip portion electrically connected to the electric connection portion. A hot water circuit connecting device, further comprising an insulating film formed thereon. 2. The hot water circuit connecting device according to claim 1, wherein the insulating coating covers an entire area of the terminal excluding the front end portion and a rear end portion for electrically connecting a remote control cable from an indoor unit. The hot water circuit connecting device formed with. 3. The hot water circuit connecting device according to claim 1, wherein the insulating film is formed by performing Teflon processing.