JPH11257542A - Receptacle for liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain liquid from infiltrating into terminal insertion holes used for electrical connection. SOLUTION: This is a receptacle for liquid, to which a plug body provided with plugs for passage connections and terminals for electrical connection, is detachably fitted, it is provided with liquid connection holes 21 and 22 with which each plug is detachably connected, and with terminal insertion holes 31, 32 and 33 for electrical connection, to which terminals are inserted following plug connection, and in the receptacle for liquid, in which the liquid connection holes 21 and 22 and the terminal insertion hole 31, 32 and 33 are released in a turned-up surface on the plug connection side, the liquid connection holes 21 and 22 are released in the horizontal surface 20 out of surfaces on the plug connection side, surfaces 30a, 30b and 30c around the terminal insertion holes 31, 32 and 33 are inclined with respect to the horizontal surface 20, and they are formed in a surface which is moved down at least toward one part of its circumferential periphery.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid outlet, and more particularly to a liquid outlet to which a plug for connecting a flow path is detachably mounted.

[0002]

2. Description of the Related Art FIG. 10 is a front view of a conventional hot water outlet (9), and FIG. 11 is a front view of the hot water outlet (9) of FIG.
FIG. 12 is a sectional view taken along the line XI-XI in a state where the plug body (8) is mounted in FIG. 12, and FIG. 12 is a perspective view of the outlet main body (9a) in FIG. 10 in a horizontal posture. As shown in FIG. 11, the conventional hot water outlet (9) as a liquid outlet described above is installed on a wall (900), and the hot water outlet (9) has a built-in outlet body (9a). .

As shown in FIGS. 10 and 11, the outlet body (9a) has a pair of fluid connection ports (9) for hot water in / out.
1) (92) is open at the front end surface (90) and is formed side by side in the horizontal direction. These fluid connection ports (91) and (92) are detachably connected to a pair of plugs (81) and (82) provided for the hot water circulation path provided in the plug body (8), respectively, and are respectively connected to flow paths. Is what is done. Each part is configured so that each of the valve elements incorporated in these plugs (81) and (82) opens and closes with connection and disconnection of the plugs (81) and (82) to the fluid connection ports (91) and (92). Have been.

A plurality of terminals (83) provided on the plug body (8) are connected to the end face (90) in accordance with the connection of the plugs (81) and (82).
(84) Multiple terminal insertion holes (9
3) (94) and (95) are formed. Insert these terminals (93) (9
4) (95) is located at the upper end between the fluid connection ports (91) and (92) on the end face (90), and is located inside the terminal insertion ports (93), (94) and (95). Accommodate a terminal (96) to which each of the terminals (83), (84), (85) is connected.

[0005]

However, in this case, when the plugs (81) and (82) are removed from the fluid connection ports (91) and (92), both of these valve bodies are closed with the removal. However, the hot water remaining in the plugs (81) and (82) after the valve closes easily leaks around the fluid connection ports (91) and (92). On the other hand, this hot water outlet (9) may be installed on the floor. In this case, as shown in FIG. 12, the outlet main body (9a) has an end surface (90) that is a horizontal plane with the upward direction.

In this case, since the fluid connection ports (91) (92) and the terminal insertion ports (93) (94) (95) are opened at the end face (90) which is a horizontal plane, the plugs (81) and (82) are removed. Sometimes, hot water leaking to the surroundings easily flows into the terminal insertion holes (93), (94), (95). Due to the intrusion of the warm water, the terminals located in the terminal insertion holes (93) (94) (95)
Problems such as electric leakage at (96) occur. An object of the present invention is to suppress the intrusion of a liquid into a terminal insertion port for electrical connection.

[0007]

Means for Solving the Problems The solution of the present invention taken to solve the above-mentioned problem is that a plug body having a plug for flow path connection and a terminal for electrical connection is detachably attached. A liquid outlet to be mounted, comprising: a fluid connection port to which the plug is detachably connected; and a terminal insertion port for the electrical connection into which the terminal is inserted with connection of the plug. In the liquid outlet, the fluid connection port and the terminal insertion port are opened on an upward surface of the plug connection side, and the fluid connection port is opened on a horizontal surface of the plug connection side surface, The surface around the terminal insertion port is formed as a surface inclined with respect to the horizontal plane and lowered toward at least a part of the outer peripheral edge thereof. "

In this case, the fluid connection port is open in the horizontal plane of the plug connection side surface, and the surface around the terminal insertion port is formed to be inclined with respect to this horizontal plane. Therefore, even if the liquid leaking around the plug when the plug is removed from the fluid connection port adheres to the peripheral surface of the terminal insertion port, the liquid flows downward along the peripheral surface due to gravity. And, since this peripheral surface is formed on a surface descending toward at least a part of the outer peripheral edge, the liquid is:
The fluid flows from the peripheral surface to the outer peripheral surface.
Therefore, the state where the liquid adheres to the peripheral surface does not continue.

[0009]

As described above, according to the present invention, even if the liquid leaking around the plug at the time of removing the plug from the connection port adheres to the surface around the terminal insertion port, it does not adhere to the outer peripheral side of the surrounding surface. Since the state in which the liquid flows and the liquid adheres to the surrounding surface does not continue, intrusion of the liquid into the terminal insertion port is suppressed.

[Others] [Item a] In the above-mentioned invention, in the case where "the entire peripheral surface descends toward one edge", the peripheral surface adheres to the peripheral surface of the terminal insertion port. The hot water flows toward the edge on one side,
It is removed from this surrounding surface.

[B] In the above-mentioned invention, in the above-mentioned invention, "the peripheral surface descends from the middle toward each of the edges opposite to each other". The warm water adhering to the surface is removed from this surrounding surface by flowing towards each of the opposite edges.

[C] The invention described in item a or b, wherein "the peripheral surface is partially embedded in the outlet main body having the horizontal surface, and the terminal for the electrical connection is accommodated therein. Constituting the upper end surface of the packing member having electrical insulation properties as described above.

[0013]

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 plan view of a hot water outlet (100) according to an embodiment of the present invention.
Is a plug that is attached to the hot water outlet (100) in FIG.
FIG. 3 is a partially cutaway perspective view of FIG. 5, and FIG. 3 is a perspective view of the hot water outlet (100) shown in FIG.
It is II-III sectional drawing. In addition, in FIG.
Part of (5) is a cross section corresponding to the III-III cross section.

FIG. 4 is a perspective view of the outlet main body (2) of FIG. 1, and FIG. 5 is a sectional view of the outlet main body (2) of FIG.
FIG. 6 is a sectional view, and FIG.
FIG. 7 is a sectional view taken along the line I-VI, and FIG.
It is VII-VII sectional drawing of (2). A hot water outlet (100) and a plug body (5) shown in the figure are provided in a hot water heating device. The hot water outlet (100) is a floor-mounted type, and the built-in outlet body (2)
The plug body (5) is detachably attached to the plug. In this mounting state, the hot water circulation path between the heater (K ₁ ) for heating the hot water and the radiator (K ₂ ) for releasing the heat of the hot water is connected.

[About plug body (5)] Plug body (5)
Are attached to the hot water hoses (53) and (54), which extend from the radiator (K ₂ ) and constitute a part of the hot water circulation path, and the remote control cable (55) as shown in FIGS. ing. The plug body (5) includes plugs (51) and (52) connected to the hot water hoses (53) and (54), respectively, and plate-like terminals (5a) and (5b) electrically connected to a remote control cable (55). ) And (5c) are intensively projected from the end surface (50a) of the casing (50).
The casing (50) has plugs (51) and (52) and terminals (5a).
(5b) A protection cylinder (56) surrounding each protruding portion of (5c) is provided.

Each of the plugs (51) and (52) has a built-in valve (not shown) for closing its flow path. In addition, plug (51)
As shown in FIG. 2, O-rings (510) and (520) are mounted on the outer peripheral surface of the distal end portion of the cylindrical main body of (52). These O-rings (510) and (520) are connected to a hot water connection port (2
1) With the plugs (51) and (52) inserted into (22), the hot water connection port (21)
This is for maintaining a watertight state between the peripheral surface of (22) and the plugs (51) and (52).

[About Hot Water Outlet (100)] As shown in FIG. 3, the hot water outlet (100)
Hot water piping (15) that forms part of the hot water circuit extending from ₁ )
The outlet body (2) provided at the tip of (16), the case body (1) accommodating the outlet body (2), and the cover plate (1a) attached to the case body (1) It is a configuration provided.

[Case (1) and Cover Plate (1a)] As shown in the figure, the case (1) is a rectangular box that opens upward and is suspended from the floor (71). Installed. The cover plate (1a) is mounted so as to cover the entire case body (1) and to fit along the floor surface (71). The cover plate (1a) has an opening (1) for inserting the above-described protective cylinder (56).
2) is formed. Further, a cylindrical portion (120) extending downward from the peripheral edge of the opening (12) is provided. This tube part (120)
The upper end of the outlet body (2) attached to the bottom wall (13) of the case body (1) enters into the lower end of the case.

Further, the cover plate (1a) is provided with a rotatable lid (11) for covering a predetermined area including the opening (12). With the lid (11) open, the plugs (51) and (52) are connected to hot water connection ports (21) and (22) described later. [Outlet body (2)] The outlet body (2)
And, as shown in FIGS. 3 to 7, a metallic main part (2 a)
In addition, a packing member (3) having an electrical insulation property is mounted thereon.

* Main part (2a) * As shown in FIG. 4, the main part (2a) is formed in an oval block shape with a cross section. The main part (2a) has a plug (51). ) (52) are formed with hot water connection ports (21) and (22). These hot water connection ports (21) (22) are
Are open on an upward horizontal plane (20) and are arranged in the longitudinal direction on the horizontal plane (20).

As shown in FIG. 1, valve bodies (23) and (24) for opening and closing the hot water connection ports (21) and (22) are provided at the lower ends of the hot water connection ports (21) and (22). ) Are respectively built-in. Furthermore,
With the insertion of the plugs (51) and (52) into the hot water connection ports (21) and (22), these valve bodies (23) and (24) and the valve bodies of the plugs (51) and (52) open, Each component is configured so that both valve bodies close when the plugs (51) and (52) are removed.

Accordingly, the plug (51) is connected to the hot water connection ports (21) and (22).
In the state where (52) is connected, as shown in FIG. 3, hot water connection ports (21) (22), plugs (51) (52), hot water hoses (53) (54), and hot water pipes (15) (16) ) Through the hot water circuit
Hot water is circulated between (K ₁ ) and the radiator (K ₂ ). * Packing member (3) * The main body (2a) above has terminals (5a) (5
b) Terminals (4a), (4b), and (4c) to which (5c) are connected are provided, but packing members are used to ensure watertightness of these terminals.
(3) is provided.

As shown in FIG. 4, the packing member (3) is located between the hot water connection ports (21) and (22) in a plan view of the horizontal plane (20) and on one long side of the horizontal plane (20). It is arranged to be biased. The packing member (3) is buried in the main body (2a) such that the upper end surface (301) of the main body in a rectangular parallelepiped shape coincides with the horizontal plane (20). And this packing member
Terminals (5a) and (5b) are connected to plugs (51) and (52)
The terminal insertion holes (31), (32), and (33) into which the (5c) is inserted
Upper end surface of a plurality of protrusions (3a), (3b), and (3c) protruding from (301)
It is formed so as to open at (30a), (30b) and (30c).

The terminal insertion ports (31), (32), (33) are formed in a rectangular shape in plan view, and the longitudinal direction thereof in plan view is the hot water connection ports (21), (22). ) Coincides with a direction perpendicular to an imaginary line connecting the centers (hereinafter, referred to as “width direction”). Further, as shown in FIG.
1) Upper end surface as a surface around (32) (33) (30a) (30b) (30c)
Is formed on a surface inclined with respect to the horizontal plane (20).
The peripheral surface is a surface that descends toward one edge (311) (312) (313) in the width direction at the outer peripheral edge. Also, toward the edges (311) (312) (313),
0a) (30b) (30c) are all sloped, and edges (311) (312)
(313) coincides with the upper end surface (301).

The upper ends of the terminal insertion openings (31), (32), (33) are set to have a size such that the terminals (5a), (5b), (5c) are densely inserted. 5b) and (5c) are terminal insertion holes (31) (32) (3
3) Inserted in a watertight state. As shown in FIGS. 5 and 6, each of the vacancies (34), (35), and (36) on the inner side of the terminal insertion ports (31), (32), and (33) has a terminal described later. (4a) (4b)
(4c) is contained.

Therefore, the plug (5) to the hot water connection port (21) (22)
1) By connecting (52), the terminals (5a) (5b) on the plug body (5) side
(5c) and outlet body (2) of the terminal (4a) (4b) and (4c) are electrically connected, as shown in FIG. 3, the electrical connection to the remote control cable (17) extending from the heater (K ₁₎ It was done. In this state, the radiator (K ₂ ) and the heater are connected via the terminals (4a) (4b) (4c), the terminals (5a) (5b) (5c), and the remote control cables (55) (17).
A control signal and the like are transmitted to (K ₁ ).

[Plug body from hot water outlet (100)
Removal of (5)] When the hot water heater is not used, the plug (5) is removed from the hot water outlet (100). In other words, plug (51) from hot water connection port (21) (22)
As soon as (52) is pulled out, the terminal insertion holes (31) (32) (33)
The terminals (5a), (5b) and (5c) are pulled out of the terminal. When the plugs (51) and (52) are removed from the hot water connection ports (21) and (22), the valve bodies (23) and (24) of the hot water connection ports (21) and (22) and the plugs are removed.
(51) Each of the valve bodies of (52) is closed. However, with the withdrawal of the plugs (51) and (52) from the hot water connection ports (21) and (22), a slight amount of hot water flows through the hot water connection port until these valves are closed and completely closed. It will collect between the plugs (21) and (22) and the plugs (51) and (52). When the plugs (51) and (52) escape from the open ends of the hot water connection ports (21) and (22), the hot water accumulated between them leaks around the hot water connection ports (21) and (22). It will be easy.

However, on the horizontal surface (20), the hot water connection ports (21) (2)
2) is open and the upper surface (30
a) (30b) (30c) (surface around terminal insertion holes (31) (32) (33))
Is inclined, even if the hot water leaking around the plugs (51) and (52) when removing the plugs (51) and (52) adheres to the upper end surfaces (30a) (30b) and (30c), the hot water will still flow due to gravity as indicated by arrows in FIG. So that the top surface (30
a) Flow along (30b) (30c). Then, the top surface (30a) (3
0b) and (30c), the entire surface is configured as a surface that descends toward the edges (311), (312), and (313).
0a, (30b), and (30c) flow from the outer peripheral surface (the upper end surface (301) and the horizontal surface (20)).

Therefore, the state in which warm water adheres to the upper end surfaces (30a) (30b) (30c) does not continue. This allows the top surface (30
a) (30b) (30c)
1) Problems such as flowing into (32) and (33) are prevented. That is, intrusion of warm water into the terminal insertion ports (31), (32), (33) is suppressed. As a result, leakage at terminals (4a) (4b) (4c) and
a) Corrosion of (4b) and (4c) is prevented. Also, terminals (4a) (4b)
Since hot water does not adhere to (4c), a short circuit between the terminals (5a), (5b), and (5c) connected and disconnected, and a malfunction due to the short circuit are prevented. In addition, terminals (5a) (5
b) Corrosion of (5c) is suppressed.

Further, if the upper end surfaces (30a), (30b), (30c) are configured to be highly water repellent, warm water can flow more easily along the upper end surfaces (30a), (30b), (30c). Hot water is quickly removed from the end faces (30a) (30b) (30c). Therefore, terminal insertion holes (31) (32) (33)
Intrusion of warm water into the water is further suppressed. In this case, for example,
A configuration in which a water-repellent material such as a silicone resin is coated on the upper end surfaces (30a), (30b), and (30c) can be adopted. [Other embodiments]. FIG. 8 is a perspective view of a main part of an outlet main body (2) according to another embodiment of the present invention, and FIG. 9 is a perspective view of an outlet main body (2) according to still another embodiment of the present invention. It is a perspective view of the principal part of.

In the above embodiment, the upper end surfaces (30a) (30b)
Although (30c) is a surface whose entire surface descends toward one edge (311) (312) (313), other surfaces descend as far as at least a part of the outer peripheral edge. Can be adopted. For example, as shown in FIG. 8, the upper end surface (30a) may be configured to descend toward the respective opposite edges (314) and (315) from the middle.

As shown in FIG. 9, the upper end surface (30a) is
The periphery of the terminal insertion port (31) toward the entire area of the outer periphery (316)
It may be configured to descend from the entire area of (317). . In the above-described embodiment, the lower edges (311), (312), and (313) of the upper end surfaces (30a), (30b), and (30c) coincide with the upper end surface (301). The configuration may be higher or lower than the upper end surface (301).

[0033] In the above embodiment, the terminal insertion port (3
1) The terminal insertion openings (31), (32), and (33) are inclined at the upper end surfaces (30a) and (30a) so that the longitudinal directions of (32) and (33) coincide with the width direction of the horizontal plane (20). 30b) and (30c), but the terminal insertion holes (31), (32), and (33) are aligned with the longitudinal direction of the horizontal plane (20). (30c).

The shapes of the terminal insertion ports (31), (32) and (33) may be, for example, circular, in addition to the rectangular shape described above. . In the above embodiment, the plug and the hot water connection port are provided one by one, but the number is not limited to these. For example, a configuration provided one by one or a configuration provided three or more at a time may be used. The same applies to terminals for electrical connection and terminal insertion ports.

[0035] In the above embodiment, the hot water connection port (2
1) (22) is recessed from the horizontal plane (20) and the valve body (23) (2
4) was provided, but this was replaced with a hot water connection port (21).
(22) is not concave from the horizontal plane (20).
(23) (24) may be arranged. In this case, the plugs (51) and (52) are only
(21) It may be configured to be in close contact with the open end of (22).

[0036] In the above embodiment, the terminal insertion port is provided in the packing member (3), but may be provided in the main body of the outlet main body (2) made of an insulating material and directly holding the terminal. . In the above embodiment, the case of hot water has been described, but this may be another liquid, for example, oil.

[0037] In the above embodiment, the terminal insertion port (3
1) Although (32) and (33) are holes having a certain width in plan view, the holes are not provided with the width, that is, the upper end surfaces (30a) (30b) of the packing member (3). The cut may be formed below (30c). In this case, when the terminals (5a), (5b), and (5c) on the plug body (5) side are not inserted, the terminal insertion holes (3
1) (32) and (33) are tightly closed to prevent hot water from entering.
When inserting the terminals (5a) (5b) (5c), the terminals (5a) (5b) (5c)
Are press-fitted while expanding the terminal insertion openings (31), (32), and (33) that have been cut. In this case, the above-described effect of preventing intrusion of warm water is further ensured.

[Brief description of the drawings]

FIG. 1 is a hot water outlet according to an embodiment of the present invention.
(100) plan view

FIG. 2 is a perspective view of a partially cut-out portion of a plug body (5) attached to the hot water outlet (100) of FIG.

FIG. 3 is a plug body in the hot water outlet (100) of FIG.
III-III sectional view in the mounted state of (5)

FIG. 4 is a perspective view of the outlet main body (2) of FIG. 1;

5 is a sectional view of the outlet main body (2) of FIG. 4 taken along line VV.

FIG. 6 is a sectional view taken along the line VI-VI of the outlet main body (2) of FIG. 4;

FIG. 7 is a sectional view taken along line VII-VII of the outlet main body (2) of FIG.

FIG. 8 is a perspective view of a main part of an outlet main body (2) according to another embodiment of the present invention.

FIG. 9 is a perspective view of a main part of an outlet main body (2) according to still another embodiment of the present invention.

FIG. 10 is a front view of a conventional hot water outlet (9).

11 is a plug body (8) of the hot water outlet (9) of FIG.
XI-XI sectional view of the mounting state of

12 is a perspective view of the outlet main body (9a) of FIG. 10 in a horizontal posture.

[Explanation of symbols]

 (100) ・ ・ ・ Hot water outlet (5) ・ ・ ・ Plug body (51) (52) ・ ・ ・ Plug (5a) (5b) (5c) ・ ・ ・ Terminal (21) (22) ・ ・ ・ Hot water connection Port (31) (32) (33) ・ ・ ・ Terminal insertion port (2) ・ ・ ・ Outlet body (3) ・ ・ ・ Packing member (4a) (4b) (4c) ・ ・ ・ Terminal (20)・ Horizontal surface (30a) (30b) (30c) ・ ・ ・ Top surface

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 7, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007]

Means for Solving the Problems To solve the above-mentioned problems, the solution of the present invention is described as follows. "A plug body having a plug for flow path connection and a plurality of terminals for electrical connection is detachable. A liquid outlet that is freely mounted, comprising: a fluid connection port to which the plug is detachably connected; and a plurality of terminals for the electrical connection into which each of the terminals is inserted with connection of the plug. An insertion port, wherein the fluid connection port and the terminal insertion port are liquid outlets that open on an upwardly facing surface of the plug connection side, wherein the fluid connection port is one of the plug connection side surfaces. Opened in a horizontal plane, each of the terminal insertion ports is provided on an upper surface of a plurality of protrusions made of an insulating material that protrudes independently from the surface on the plug connection side, and the upper surface of the protrusion is positioned with respect to the horizontal plane. A surface that is inclined It is an feature "to fall toward the at least a portion of the outer peripheral edge of the.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

In this device, the fluid connection port is open on the horizontal plane of the plug connection side surface, and each of the terminal insertion ports has a protrusion made of an insulating material which protrudes independently from the plug connection side surface. It is provided on each upper surface, and the upper surface is a surface inclined outward with respect to this horizontal plane.
Therefore, even if the liquid leaking around the plug when the plug is removed from the fluid connection port adheres to the peripheral surface of each of the terminal insertion ports, the liquid flows downward along the peripheral surface due to gravity. And, since this peripheral surface is formed on a surface descending toward at least a part of the outer peripheral edge, the liquid is:
The fluid flows from the peripheral surface to the outer peripheral surface.
Therefore, the state where the liquid adheres to the peripheral surface does not continue. Further, since each of the terminal insertion ports is provided on each of the independent protrusions made of an insulating material, even if a liquid enters one terminal insertion port, it does not reach the other terminal insertion ports.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

[0009]

As described above, according to the present invention, even if the liquid leaking around the plug at the time of removing the plug from the connection port adheres to the surface around the terminal insertion port, it does not adhere to the outer peripheral side of the surrounding surface. Since the state in which the liquid flows and the liquid adheres to the surrounding surface does not continue, intrusion of the liquid into the terminal insertion port is suppressed. Also, even if liquid enters one terminal insertion port,
There is no danger of short-circuiting between the terminals because the other terminal insertion openings are not affected.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yasunori Tamaki 18-1 Hanana Kamitoba, Minami-ku, Kyoto 1 Fujii Alloy Manufacturing Co., Ltd.

Claims (5)

[Claims] 1. A liquid outlet to which a plug body having a plug for flow path connection and a terminal for electrical connection is removably mounted, wherein a fluid connection port to which the plug is removably connected. And a terminal insertion port for the electrical connection into which the terminal is inserted with the connection of the plug, wherein the fluid connection port and the terminal insertion port are on an upwardly facing surface of the plug connection side. In the liquid outlet to be opened, the fluid connection port is opened in a horizontal plane of the surface on the plug connection side, and a surface around the terminal insertion port is a surface inclined with respect to the horizontal plane, and A liquid outlet formed on a surface descending toward at least a part of a peripheral edge. 2. The liquid outlet according to claim 1, wherein the entire surface of the peripheral surface descends toward one edge. 3. The liquid outlet according to claim 1, wherein the peripheral surface descends midway toward each of the opposite edges. 4. The electric connector according to claim 1, wherein said peripheral surface constitutes an upper end surface of an electrically insulating packing member partially embedded in said outlet main body having said horizontal surface and containing terminals for said electric connection. Item 4. The liquid outlet according to any one of Items 1 to 3. 5. A pair of said plugs are provided for connection to a hot water circulation path, a plurality of terminals of said plug body are provided, and said fluid connection port is configured such that said pair of plugs are detachably connected. The liquid outlet according to any one of claims 1 to 4, wherein a pair is provided, and a plurality of the terminal insertion ports are provided so that the plurality of terminals are respectively inserted.