JPH09115602A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide easy manufacturability and enhance the effectiveness in sealing operations and also the sealing performance. SOLUTION: A connector according to the invention includes a body 1 (2) of synthetic resin to which a terminal 3 (4) is fixed, an electric cable 8a (9a) consisting of lead 8a (9a) connected with the base of the terminal and a sheath film 8d (9d) of synthetic resin, and an armor 20 (21) of synthetic resin enclosing the body and cable by insert molding, wherein the joint surfaces B (C) of the armor with the connector body and sheath film are sealed by thermofusion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for relaying an electric cable in a signal transmission line of a sensor, for example.

[0002]

2. Description of the Related Art Conventionally, as this type of connector, there are provided first and second connector bodies which are detachably fitted to each other, and the first and second terminals are provided in the terminal holes formed in the respective connector bodies. While being press-fitted, cylindrical first and second fixtures are externally fitted to the respective connector bodies. The first and second connector bodies are formed by injection molding of polybutylene terephthalate (PBT), and the first fixture has a first screw (male screw) portion formed on the outer peripheral surface thereof, and A second screw (female screw) portion is formed on the inner peripheral surface of the second fixing member, and each fixing member is locked to an annular collar portion projecting on the outer peripheral surface of each connector body.

An annular seal member is externally fitted to the second connector body and brought into contact with the end face of the annular collar portion,
When the first threaded portion of the first fixture is screwed into the second threaded portion of the second fixture, the seal member is pressed by the end face of the first connector body, and the seal member is attached to the flange portion. The end surface, the outer peripheral surface of the second connector body, and the inner peripheral surface of the second fixture are pressed against each other. On the other hand, the core wire of the lead wire in the electric cable is inserted into the respective base end portions of the first and second terminals, the connecting portion is deformed by a jig, and the lead wire is crimped.

Thereafter, the connector bodies and the electric cables are set in a mold, and a vinyl chloride (PVC) injection is performed to form a synthetic resin jacket portion. The electric cable is insert molded.

[0005]

By the way, according to the above construction, a seal member such as an O-ring or an adhesive is provided on the joint surface between the outer sheath of the first and second connector bodies and the electric cable outer coating. The efficiency of the sealing work and the sealing performance are lowered.

Further, since the first terminal is a pin terminal and the second terminal is a socket terminal, the second terminal for receiving the first terminal and its terminal hole necessarily have a large diameter. At the time of injection molding of the second connector body having a large-diameter terminal hole for press-fitting the terminal, the peripheral portion of the terminal hole becomes thin, so that the resin flow in this portion is deteriorated and the connector body is molded. It's extremely difficult. Further, since the second screw portion is formed on the inner peripheral surface of the second fixture so as to extend to the pressure contact portion of the seal member, it is formed between the second screw portion and the seal member. A leak groove is formed along the thread groove, which deteriorates the sealing performance of the seal member.

Conventionally, as another example of this type of connector,
The first connector body includes first and second connector bodies that are detachably fitted to each other, and a cylindrical first fixture surrounds the first terminal and has a base end portion on its end face. In addition to being fixed by insert molding, a cutout groove or the like is formed on the outer peripheral surface of the insert portion to form a rotation-preventing or slip-out preventing structure, which is detachably fitted onto the first fixture.
Is integrally formed with a synthetic resin outer covering made of vinyl chloride (PVC) adhered to the outer peripheral surface of the second connector body, and can be attached to the first fixing outside with one touch. There is known a structure that is fitted and sealed. However, according to the above configuration, since the first fixture has a structure in which the notch groove or the like formed in the base end portion prevents rotation or coming off, machining of the notch groove or the like is extremely troublesome and the sealing property is high. bad.

Accordingly, one object of the present invention is to provide a connector which improves the working efficiency of the seal and the sealing performance. Another object of the present invention is to provide a connector that is easy to manufacture. Still another object of the present invention is to provide a connector in which the structure for preventing the fixture from rotating and the retaining structure can be easily processed. Still other objects of the present invention are as described in detail below.

[0009]

According to a first aspect of the present invention, there is provided a connector body comprising a connector main body made of synthetic resin having terminals fixed thereto, a lead wire fixedly connected to a base end portion of the terminal and an outer coating made of synthetic resin. And an outer cover made of synthetic resin, which is obtained by coating the connector body and the electric cable by insert molding, and heats the joint surface between the outer cover and the connector body and the outer coating of the electric cable. It is characterized by being sealed by wearing.

According to the second aspect of the invention, an annular protrusion is formed on the outer peripheral surface of the connector body, and the joint surface between the connector body and the outer cover is sealed by heat fusion of the annular protrusion. And A connector according to a third aspect of the present invention is a first and second terminal that is detachably electrically connected to each other, and a first terminal that fixes the first and second terminals and is detachably fitted to each other. And a second connector main body, a cylindrical first fixture externally fitted to the first connector main body and having a first screw portion formed on the outer peripheral surface, and externally fitted to the second connector main body. A cylindrical second fixing member having a second screw portion formed on the inner peripheral surface, the second screw portion being engaged with the annular flange portion projecting from the outer peripheral surface and screwed into the first screw portion; A ring-shaped seal that is externally fitted to the second connector body, contacts the end surface of the annular collar portion, is pressed by the end surface of the first connector body, and is pressed against the inner peripheral surface of the second fixture. A member, and a pressure contact portion of the seal member and a second member on the inner peripheral surface of the second fixture. An annular groove formed between the threaded portion, characterized by being configured to press contact with the smooth inner circumferential surface of the outer peripheral surface a second fastener of the seal member.

According to a fourth aspect of the present invention, there is provided a connector in which a first connector body made of synthetic resin having a plurality of pin terminals fixed thereto, and a second socket terminal having the socket terminals for detachably pressing the respective pin terminals fixed thereto. Between the connector body, the fitting recess formed in the first connector body and into which the second connector body is removably fitted, and between the terminal holes corresponding to the plurality of molding gate ports. A molding residual portion formed on the end surface of the second connector body, and a positioning protrusion formed on the bottom portion of the fitting recess and contacting the end surface of the second connector body. It is characterized in that each of the molding remaining portions is housed in a gap formed between the end surface of the second connector body and the positioning protrusion.

According to a fifth aspect of the present invention, there is provided a connector main body made of synthetic resin having pin terminals fixed, and a base end portion fixed to an end surface of the first connector body surrounding the pin terminals. At the same time, a cylindrical first fixture having a threaded portion formed on the outer peripheral surface of the base end portion, a second connector main body having a socket terminal detachably press-fitted to the pin terminal fixed thereto, and a second connector body A tubular second fixing member made of a synthetic resin, which is formed from an outer covering portion attached to the outer peripheral surface of the connector body and is detachably fitted to the first fixing member. The first fixture is characterized in that the base end portion including the screw portion is fixed to the first connector body by insert molding.

[0013]

According to the invention of claim 1, since the joint surfaces of the first and second connector bodies and the outer coating of the electric cable and the outer jacket are sealed by heat fusion, a sealing member such as an O-ring is formed. It is possible to simultaneously perform sealing at the time of insert molding of the connector main body and the outer coating of the electric cable without requiring an adhesive or an adhesive, and it is possible to improve the sealing work efficiency and the sealing performance.

According to the second aspect of the present invention, since the annular projection is formed on the outer peripheral surface of each connector body, the annular projection is easily heat-sealed at the time of insert molding to further improve the work efficiency and sealing performance. Can be made. According to the invention of claim 3, since the annular groove is formed on the inner peripheral surface of the second fixing member between the pressure contact portion of the seal member and the second screw portion, the outer periphery of the seal member. By pressing the surface against the smooth inner peripheral surface of the second fixture, the sealing performance at the fitting portions of the first and second connector bodies can be further improved.

According to the invention of claim 4, the socket terminal for receiving the pin terminal and its terminal hole necessarily have a large diameter. Therefore, in injection molding of the second connector body, the peripheral portion of the terminal hole is thin. The reason why the resin flow in this part becomes worse is that the injection molding gate opening is set between the terminal holes in the peripheral part of the tip surface, and it corresponds to the thin part in the peripheral part of the terminal hole. The second connector body can be easily obtained by smoothing the resin flow in the mold cavity.

Also, the molding remaining portion of the second connector body is
A gap formed between the positioning protrusion and the end face of the second connector body by bringing the positioning protrusion at the bottom of the fitting recess of the first connector body into contact with the end face of the second connector body. When the first fixing member is screwed into the second fixing member by externally fitting the annular sealing member on the second connector main body, abutting against the end surface of the annular flange portion, The seal member pressed by the end surface of the first connector body is provided with an end surface of the collar portion and an outer peripheral surface of the second connector body depending on the positioned coupling relationship between the first and second connector bodies. Further, the inner peripheral surface of the second fixing member is pressed against the inner peripheral surface with a predetermined pressing force, so that the sealing performance in the fitting portion of the first and second connector bodies can be improved. According to the invention of claim 5, the first
Since the threaded portion is formed on the fixture of No. 1 and the threaded portion is fixed to the second connector body by insert molding, the first fastener can achieve the rotation stop and the retainer with the above threaded portion. The processing is extremely easy and the sealing performance is improved.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing an example of a connector according to the present invention with a main part cut away. In the figure, A is a connector, and this connector A includes first and second connector bodies 1 and 2 that are detachably fitted to each other, and terminal holes 1a, First and second terminals 3 and 4 are press-fitted and fixed to 2a, and cylindrical first and second fixtures 5 and 6 are externally fitted to the respective connector bodies 1 and 2.

A first screw (male thread) portion 5a is formed on the outer peripheral surface of the first fixture 5, and a second screw (female screw) portion 6a is formed on the inner peripheral surface of the second fixture 6. The fixing members 5 and 6 are locked to the annular collar portions 1b and 2b provided on the outer peripheral surfaces of the connector bodies 1 and 2, respectively.
A ring-shaped seal member 7 is externally fitted to the second connector body 2 and brought into contact with the end face 2c (FIG. 3) of the ring-shaped flange portion 2b, and the first screw portion of the first fixture 5 is attached. When 5a is screwed into the second threaded portion 6a of the second fixture 6, the end face 1c (FIG. 2) of the first connector body 1 presses the seal member 7, and the seal member 7 is attached to the collar. The end surface 2c of the portion 2b, the outer peripheral surface 2d of the second connector body 2 and the inner peripheral surface 6b of the second fixture 6 are pressed against each other. Inner peripheral surface 6b of the second fixture 6
An annular groove 6c is formed between the pressure contact portion of the seal member 7 and the second screw portion 6a, and the outer peripheral surface of the seal member 7 is made into the smooth inner peripheral surface 6b of the second fixture 2. Pressed.

The first terminal 3 comprises a plurality of pin terminals, the second terminal 4 comprises a plurality of socket terminals,
For the terminals 3 and 4, the core wires 8b and 9b of the lead wires 8a and 9a of the electric cables 8 and 9 are inserted into the cylindrical connecting portions 3b and 4b formed at the base end portions 3a and 4a, for example, the connecting portion 3b. , 4b are deformed by a jig (not shown) to crimp the connecting portions 3b, 4b to the core wires 8b, 9b for electrical connection.

The lead wires 8a and 9a are a plurality of core wires 8
b and 9b are coated with synthetic resin coatings 8c and 9c,
The electric cables 8 and 9 are formed by covering the plurality of lead wires 8a and 9a with outer coatings 8d and 9d made of synthetic resin. The respective connector bodies 1 and 2 and the electric cables 8 and 9 are insert-molded in a mold (not shown) and covered with synthetic resin jackets 20 and 21. Covered parts 20 and 21, connector bodies 1 and 2, and electric cable outer coatings 8d and 9
The joint surfaces B and C with d are sealed by heat fusion. Forming a plurality of annular projections 1d and 2e (FIGS. 2 and 3) on the outer peripheral surfaces of the connector bodies 1 and 2 during the heat fusion, and melting at least the outer peripheral edge portion of each of the annular projections 1d and 2e. Thereby, the work efficiency and the sealing performance can be further improved.

The first connector body 1 has the second connector
Is formed with a fitting recess 1e (Figs. 2 and 4) for detachably fitting the tip of the connector body 2 of Fig. 2, and the bottom surface 1f of the fitting recess 1e has an end surface of the second connector body 2. A positioning protrusion 1g is provided so as to abut the 2f (FIG. 3). Further, on the end face 2f of the second connector main body 2, there is a molding remaining portion between each of the plurality of terminal holes 2a corresponding to the plurality of molding gate openings 23 in a mold (not shown) to be insert-molded. 2g (FIGS. 3 and 5) are provided in a protruding manner, and the molding residual portion 2g is accommodated in a gap 24 (FIG. 1) formed between the positioning protrusion 1g and the end surface 2f of the second connector body 2. .

Next, an example of manufacturing and assembling steps of the connector A will be described. First and second connector bodies 1,
2 is formed by injection molding of a synthetic resin such as polybutylene terephthalate (PBT) in a mold (not shown). That is, the first connector body 1 has a fitting recess 1e at the center of the tip as clearly shown in FIGS. 2 and 3.
Is formed, a plurality of terminal holes 1a axially extending from the bottom portion 1f of the fitting recess 1e are formed, and the bottom portion 1 is formed.
A plurality of positioning protrusions 1g are provided on f, and an annular first collar portion 1b is provided on the outer peripheral surface of the tip portion.
Furthermore, a plurality of annular protrusions 1d are formed on the outer peripheral surface of the base end portion.

At the center of the bottom portion 1f of the fitting recess 1e, a molding residual portion 1h is provided so as to correspond to the molding gate port 25 of the injection mold, and the molding residual portion 1h is provided. A recess 1k for accommodating the above is formed in the bottom portion 1f of the fitting recess 1e.

Further, as clearly shown in FIG. 3, the second connector main body 2 has an annular second flange portion 2b protruding from the outer peripheral surface of the central portion thereof, and extends in the axial direction to penetrate the second connector main body 2. A plurality of terminal holes 2a are formed, and the end surface 2f is provided with a molding residual portion 2g projecting between the terminal holes 2a corresponding to the plurality of molding gate openings 23 in injection molding. A plurality of annular protrusions 2e are formed on the outer peripheral surface.

On the other hand, cylindrical connecting portions 3b and 4b formed at the base end portions 3a and 4a of the first and second terminals 3 and 4, respectively.
The core wires 8b and 9b of the lead wires 8a and 9a in the electric cables 8 and 9 are inserted into the electric cables 8 and 9, and the connecting portions 3b and 4b are deformed by a jig (not shown) to connect the connecting portions 3b and 4b to the core wires. It is fixed by crimping to 8b and 9b. The first and second terminals 3 and 4 are press-fitted and fixed in the terminal holes 1a and 2a formed in the connector bodies 1 and 2, and the cylindrical first and second terminals are formed in the connector bodies 1 and 2. The two fixtures 5 and 6 are externally fitted.

Thereafter, the connector bodies 1 and 2 and the electric cables 8 and 9 are set in a mold, and synthetic resin, for example, polyester elastomer (TPEE) is injected to form synthetic resin jacket portions 20 and 21. This outer cover 2
With 0 and 21, the base ends of the connector bodies 1 and 2 and the tip ends of the electric cables 8 and 9 are insert-molded.

By the way, the respective connector bodies 1 and 2 are made of polybutylene terephthalate (melting point: about 203 ° C.), and the outer coatings 8 d, 9 d of the electric cables 8, 9 are, for example, vinyl chloride (PVC, melting point: about 100 ° C.). ), And the outer cover parts 20 and 21 are made of polyester elastomer (melting point:
(About 250 ° C. to 270 ° C.), and the polyester elastomer has a higher melting point than the above polybutylene terephthalate and vinyl chloride, the base end portions 1a and 2a of the connector bodies 1 and 2 and the electric cable 8, When insert-molding the respective tip portions of 9, the outer sheath portions 20 and 21, the connector bodies 1 and 2, and the electric cable coating 8d,
The joint surfaces B and C with 9d can be sealed by heat fusion.

That is, when the respective connector bodies 1 and 2 and the electric cables 8 and 9 are set in the mold, and the polyester elastomer is injected to form the jacket portions 20 and 21,
At the joint surfaces B and C of the outer cover portions 20 and 21 and the connector bodies 1 and 2 and the electric cable coatings 8d and 9d, the polyester body of each connector body 1 and 2 having a lower melting point due to the heat retained by the polyester elastomer. By melting each surface of butylene terephthalate and vinyl chloride of the electric cable coatings 8d and 9d, the outer coatings 20 and 21, the connector bodies 1 and 2 and the electric cable outer coating 8d are made of materials that are well compatible with each other. , 9d and the joint surfaces B and C can be sealed by heat fusion during insert molding. At this time, by forming annular protrusions 1d and 2e having a wedge-shaped cross section on the outer peripheral surfaces of the connector bodies 1 and 2, at least the tip portions of the annular protrusions 1d and 2e are easily heat-sealed to form a seal. Work efficiency can be improved.

When injection molding the first connector body 1, a molding gate port 25 (FIG. 2) in the mold is provided corresponding to the center of the tip, and polybutylene terephthalate is injected from this center. The polybutylene terephthalate smoothly flows in the cavity of the mold, and the connector body 1 can be easily obtained. Further, in injection molding, a molding residual portion 1h corresponding to the molding gate port 25 is formed.
Is housed in the recess 1k formed by effectively utilizing the central portion which is a dead space, so that the second connector body 2
There is no fear that the seal structure will be damaged when it is connected to.

However, since the first terminal 3 is a pin terminal and the second terminal 4 is a socket terminal, the second terminal 4 for receiving the first terminal 3 and its terminal hole 2a are inevitable. It has a large diameter. Therefore, at the time of injection molding of the second connector body 2 having the large-diameter terminal hole 2a, the molding gate port 23 is formed in the central portion which is a dead space.
When A (FIG. 5) is set, since the peripheral portion of the terminal hole 2a at the base end portion 2h (FIG. 3) where the annular protrusion 1d is formed is thin, the resin flow in this portion is deteriorated and the connector main body Molding of 2 is extremely difficult.

In order to improve this, as shown in FIGS. 3 and 5, at the time of injection molding of the second connector main body 2, a plurality of molding gate openings 23 are formed at the respective terminals in the peripheral portion of the tip surface 2f. By setting the holes between the holes 2a, the resin main body 1 can be easily obtained by smoothing the resin flow in the mold cavity corresponding to the thin portion in the peripheral portion of the terminal hole 2a. However, the unmolded portion 2g is provided so as to correspond to each of the molding gate openings 23, and the positioning becomes imperfect upon coupling with the first connector body 1, and the sealing structure is supported. Therefore, a positioning protrusion 1g that abuts the end face 2f of the second connector body 2 is provided on the bottom portion 1f of the fitting recess 1e of the first connector body 1, and the positioning protrusion 1g and the second protrusion
2 formed between the end face 2f of the connector body 2 of
The remaining molding part 2g is stored in the container 4.

Therefore, the annular seal member 7 is externally fitted to the second connector body 2 and brought into contact with the end face 2c of the annular collar portion 2b, and the first fixture 5 is replaced with the second fixture. When it is screwed into the connector 6, the seal member 7 pressed by the end surface 1c of the first connector body 1 has the brim portion 2b depending on the positioned coupling relationship between the first and second connector bodies 1 and 2. End surface 2c, the outer peripheral surface 2d of the second connector body 2 and the inner peripheral surface 6 of the second fixture 6.
By being pressed against b with a predetermined pressing force, it is possible to improve the sealing performance at the fitting portions of the first and second connector bodies 1 and 2.

Further, since the annular groove 6c is formed on the inner peripheral surface 6b of the second fixture 6 between the pressure contact portion of the seal member 7 and the second screw portion 6b, the seal is formed. The outer peripheral surface of the member 7 can be pressed against the smooth inner peripheral surface 6b of the second fixture 2. That is, without forming the annular groove 6c on the inner peripheral surface 6b of the second fixture 6, the second fixture 6
When the threaded portion 6b of the seal member 7 is formed to extend to the pressure contact portion of the seal member 7, a leak groove is formed along the threaded groove formed between the second screw portion 6b and the seal member 7, and the seal member The sealing performance of No. 7 is deteriorated by pressing the outer peripheral surface of the seal member 7 against the smooth inner peripheral surface 6b of the second fixture 2 so that the first and second connector main bodies 1, 2 It is possible to further improve the sealing performance in the fitting portion of.

Another example of the connector according to the present invention will be described with reference to FIG. In the figure, A is a connector,
The connector A includes first and second connector bodies 11 and 12 that are detachably fitted to each other, and the first connector body 11 includes a cylindrical first fixture 15 and a first terminal 3 A base end portion 15a is fixed to the end surface of the insert portion by insert molding, and a screw portion 15b is formed on the outer peripheral surface of the insert portion.

The second fixing member 16 detachably fitted to the first fixing member 15 is the second connector body 1.
2 is integrally formed with a synthetic resin jacket 21 made of, for example, polyester elastomer, which is heat-sealed to the outer peripheral surface of 2. It is fitted and sealed. According to the above configuration, the screw portion 15b (FIG. 7) is formed on the base end portion of the first fixture 15.
And the threaded portion 15b is attached to the second connector body 12
Since it is fixed by insert molding (FIG. 8) to the first fixing member 15, the first fixing member 15 can achieve its rotation prevention and slip-out prevention by the screw portion 15b, and a conventional notch groove or the like (not shown). Compared with the rotation prevention and slip-off prevention structure by, the processing is extremely easy and the sealing performance is good.

In FIG. 6, the other structure is almost the same as that of FIG. 1. Therefore, the same or corresponding portions as those of FIG. 1 are designated by the same reference numerals, and the detailed description thereof will be omitted. Also,
In each of the above-mentioned embodiments, the first and second terminals 3 and 4 are press-fitted and fixed in the respective terminal holes 1a and 2a of the first and second connector bodies 1, 2 (11, 12), but insert molding is performed. You may fix with. Furthermore, in each of the above-described embodiments, the first and second fixtures 5 (15) and 6 are not limited to metal, and may be other material such as synthetic resin.

[0037]

As described above, according to the invention of claim 1, the work efficiency and the sealing performance of the seal can be improved without requiring a sealing member such as an O-ring or an adhesive. According to the invention of claim 2, the annular projection can be heat-sealed at the time of insert molding to further improve the work efficiency and sealing performance. According to the invention of claim 3, it is possible to improve the sealing performance in the fitting portions of the first and second connector bodies.

According to the invention of claim 4, the second connector body can be easily obtained by smoothing the flow of the resin in the mold cavity corresponding to the thin portion in the peripheral portion of the terminal hole. The sealing performance at the fitting portions of the first and second connector bodies can be improved. According to the invention of claim 5, it is very easy to process the detent structure and the retaining structure in the first fixture, and the sealing performance thereof is also improved.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a connector according to the present invention with a main part cut away.

FIG. 2 is a cross-sectional view of a main part of the first connector main body side that constitutes the same connector in an exploded manner.

FIG. 3 is a cross-sectional view of a main part of the second connector body side that constitutes the same connector in an exploded manner.

FIG. 4 is an end view of a first connector body forming the connector.

FIG. 5 is an end view of a second connector body that constitutes the same connector.

FIG. 6 is a side view of another example of the connector according to the present invention, in which main parts are cut away.

FIG. 7 is a partially cutaway side view showing an example of a first fixture.

FIG. 8 is a partially cutaway side view of a first connector body side forming the connector.

[Explanation of symbols]

 A connector B joining surface C joining surface 1 first connector body 1c end surface of the first connector body 1d annular protrusion 1e fitting recess 1f bottom of recess 1g positioning protrusion 2 second connector body 2b circular collar 2c End face of collar part 2e Annular projection 2g Unmolded part 3 First terminal (pin terminal) 3a Base end part of first terminal 4 Second terminal (socket terminal) 4a Base part of second terminal 5 First Fixing tool 5a First screw part 6 Second fixing tool 6a Second screw part 6b Inner peripheral surface of second fixing tool 6c Annular groove 7 Sealing member 8 Electric cable 8a Lead wire 8d Electric cable outer coating 11 First Connector body 12 Second connector body 15 First fixing tool 15a Base end part 15b Screw part 20 Outer cover part 21 Outer cover part 23 Molding gate port 24 Gap

Claims (5)

[Claims] 1. A synthetic resin connector body to which terminals are fixed, an electric cable consisting of a lead wire and a synthetic resin outer coating connected and fixed to the base end of the terminal, and the connector body and the electric cable to be inserted. A connector characterized by comprising a synthetic resin outer covering portion coated by molding, and sealing a joint surface between the outer covering portion and the connector main body and the electric cable outer coating by heat fusion. 2. An annular protrusion is formed on the outer peripheral surface of the connector body, and the joint surface between the connector body and the outer cover is sealed by heat fusion of the annular protrusion.
A connector as described in. 3. A first and a second terminal that are detachably electrically connected to each other, and a first and a second terminal that fix the first and second terminals and are detachably fitted to each other. A connector main body, a cylindrical first fixture that is externally fitted to the first connector main body and has a first screw portion formed on the outer peripheral surface, and a second connector main body that is externally fitted to project on the outer peripheral surface. A cylindrical second fixing tool having an inner peripheral surface formed with a second screw portion that is locked to the provided annular collar portion and that is screwed into the first screw portion, and a second connector body. A ring-shaped seal member that is externally fitted to the end face of the ring-shaped collar portion and is pressed by the end face of the first connector body to be pressed into contact with the inner peripheral surface of the second fixture. And then the second
An annular groove is formed on the inner peripheral surface of the fixing member between the pressure contact portion of the seal member and the second screw portion, and the outer peripheral surface of the seal member is formed as a smooth inner peripheral surface of the second fixing member. The connector according to claim 1 or 2, wherein the connector is configured to be pressed against each other. 4. A first connector body made of synthetic resin, to which a plurality of pin terminals are fixed, a second connector body to which a socket terminal for detachably pressing the respective pin terminals is fixed, and the first connector body. And a fitting recess formed in the connector body into which the second connector body is removably fitted, and arranged between the terminal holes corresponding to the plurality of molding gate openings and And a positioning protrusion formed on the bottom of the fitting recess and abutting on the end face of the second connector body.
The connector according to any one of claims 1 to 3, wherein each of the molding residual portions is configured to be housed in a gap formed between the end surface of the second connector body and the positioning protrusion. 5. A synthetic resin first fixed pin terminal
Surrounding the connector body and the pin terminal
The base end portion is fixed to the end surface of the connector body, and the cylindrical first fixing tool having the screw portion formed on the outer peripheral surface of the base end portion, and the socket terminal that is detachably press-fitted to the pin terminal are fixed. Made of a synthetic resin having a tubular shape, which is formed of a second connector main body and an outer cover portion attached to the outer peripheral surface of the second connector main body and is detachably fitted to the first fixture. 2. The second fixing device according to claim 1, wherein the first fixing device has a base end portion including the screw portion fixed to the first connector body by insert molding. , 2 or 4 connector.