KR20160117184A - Plug - Google Patents

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Publication number
KR20160117184A
KR20160117184A KR1020160029381A KR20160029381A KR20160117184A KR 20160117184 A KR20160117184 A KR 20160117184A KR 1020160029381 A KR1020160029381 A KR 1020160029381A KR 20160029381 A KR20160029381 A KR 20160029381A KR 20160117184 A KR20160117184 A KR 20160117184A
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KR
South Korea
Prior art keywords
temperature detecting
energizing
plug
wall portion
piece
Prior art date
Application number
KR1020160029381A
Other languages
Korean (ko)
Inventor
다카시 가와모토
나오토 모리시타
Original Assignee
파나소닉 아이피 매니지먼트 가부시키가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 파나소닉 아이피 매니지먼트 가부시키가이샤 filed Critical 파나소닉 아이피 매니지먼트 가부시키가이샤
Publication of KR20160117184A publication Critical patent/KR20160117184A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/04—Pins or blades for co-operation with sockets
    • H01R13/05—Resilient pins or blades
    • H01R13/052—Resilient pins or blades co-operating with sockets having a circular transverse section
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • H01R24/30—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable with additional earth or shield contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/713—Structural association with built-in electrical component with built-in switch the switch being a safety switch
    • H01R13/7137—Structural association with built-in electrical component with built-in switch the switch being a safety switch with thermal interrupter

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

[PROBLEMS TO BE SOLVED] [PROBLEMS TO BE SOLVED] Provided is a plug capable of detecting the heat generation from a plurality of energizing fins with good precision while preventing the size of the plug main body from being increased.
[Solution]
The plug according to the present invention includes a plug body 30 having a front wall portion 311 and a circumferential wall portion 312 protruding rearward from the front wall portion 311 and a plurality of energizing pins A pair of contact pieces 21 exposed on both sides of the circumferential wall portion 312 and a connecting piece 22 connecting the pair of contact pieces 21 in the plug body 30, (20), and a plurality of temperature detecting elements (40) for detecting the temperatures of the plurality of energizing fins (10). The connecting piece 22 has a shape bent so as to have a concave portion 25 opposed to the front wall portion 311. The concave portion 25 constitutes at least a part of the accommodation space 37 for accommodating the plurality of temperature detecting elements 40 between the front wall portion 311 and the grounding rail 20. [

Description

Plug {PLUG}

The present invention relates to a plug, and more particularly to a plug for detecting heat generation in a plurality of energizing fins.

The plug disclosed in Patent Document 1 includes a plug main body having a front wall portion and a cylindrical main wall portion protruding rearward from the front wall portion and a front end portion extending from the front wall portion And a ground terminal having a pair of terminal portions exposed on both sides of the main wall portion and a connecting portion connecting the pair of terminal portions in the plug main body.

The plug disclosed in Patent Document 2 has a pair of plug pins of a round rod shape and a thermistor for detecting the temperature of the pair of plug pins. Using the plug of Patent Document 2, it is possible to detect the heat generation in the pair of plug pins due to the poor contact between the plug and the receptacle.

[Patent Document 1] International Publication No. 2014/91552 [Patent Document 2] Japanese Laid-Open Patent Publication No. 2014-38785

The plug of Patent Document 1 does not have a thermistor, and heat generation in the pair of fins can not be detected. Therefore, it is considered to provide a thermistor in the plug of Patent Document 1 as in Patent Document 2.

In the plug of Patent Document 1, there is a connection portion of the ground terminal in the plug main body. Therefore, when the thermistor is mounted on the plug of Patent Document 1, the thermistor needs to be disposed behind the ground terminal so as not to contact the ground terminal. In this case, the plug body must be large enough to accommodate the thermistor disposed at the rear of the ground terminal, so that the size of the plug body can not be avoided. Further, when the thermistor is disposed behind the ground terminal, since the distance between the thermistor and the plug pin becomes large, it is difficult to detect the heat generation in the pair of plug pins with good accuracy.

A problem to be solved by the present invention is to provide a plug capable of detecting the heat generation from a plurality of energizing fins with good precision while preventing the size of the plug main body from being increased.

The plug according to the present invention has a plug main body having a front wall portion and a cylindrical main wall portion protruding rearward from the front wall portion, and a plurality of energizing housings housed in the plug main body such that the front end portions thereof project forward from the front wall portion A ground rail having a pin and a pair of elongated contact pieces exposed on both sides of the circumferential wall portion and a connecting piece for connecting the pair of contact pieces in the plug main body, And a plurality of temperature detecting elements which are respectively disposed at intervals from the plurality of energizing fins and detect the temperatures of the plurality of energizing fins. The connecting piece has a bent shape so as to have a concave portion facing the front wall portion. The concave portion constitutes at least a part of an accommodation space for accommodating the plurality of temperature detecting elements between the front wall portion and the ground rail.

According to the present invention, it is possible to provide a plug that can detect the heat generation from a plurality of energizing fins with good precision while preventing the size of the plug main body from being increased.

1 is a cross-sectional view of a main portion of a plug according to an embodiment of the present invention.
2 is an exploded perspective view of the plug of the embodiment.
3 is a front view of the plug of the above embodiment.
4 is a plan view of the plug of the above embodiment.
5 is a bottom view of the plug of the above embodiment.
6 is a side view of the ground rail of the plug of the above embodiment.
7 is a perspective view of the internal structure of the plug of the above embodiment.
8 is a front view of the internal structure of the plug of the above embodiment.
9 is a rear view of the internal structure of the plug of the above-described embodiment.
10 is a sectional view of the plug of the above embodiment.

(Embodiments)

Hereinafter, a plug according to an embodiment of the present invention will be described with reference to Figs. 1 to 10. Fig. 1 is a cross-sectional view taken along the line A-A in Fig. 1, the configuration of the plug is partially omitted. 10 is a cross-sectional view taken along the line B-B in Fig.

The plug of this embodiment is a plug suitable for CEE7 / 7. As shown in Figs. 2 to 5, the plug of the present embodiment includes a plurality of (two in this embodiment) energizing pins 10 (plug pins), one grounding rail 20 (grounding terminal) A plug main body 30, a plurality of (two in this embodiment) temperature detecting elements 40, and a cable 50. [ Hereinafter, one of the two energizing fins 10 is referred to as a first energizing pin 10A, and the other is referred to as a second energizing pin 10B, if necessary. If necessary, one of the two temperature detecting elements 40 is referred to as a first temperature detecting element 40A and the other is referred to as a second temperature detecting element 40B.

The cable 50 has five electric wires 51 to 55 and a sheath 56 covering five electric wires 51 to 55 as shown in Fig. At the first end of the cable 50, five wires 51-55 are exposed from the sheath 56 and the second end of the cable 50 is exposed to any device (e.g., a plug, receptacle, etc.) . The five electric wires 51 to 55 are two (first and second) electricity transmission lines 51 and 52, a ground line 53 and two (first and second) signal lines 54 and 55 . In the present embodiment, the first electricity transmission line 51 is a voltage line and the second electricity transmission line 52 is a neutral line. The first electricity transmission line 51 is connected to the first energizing pin 10A, the second electricity transmission line 52 to the second energizing pin 10B, the ground line 53 to the ground rail 20, 54 are electrically connected to the first temperature detecting element 40A and the second signal line 55 is electrically connected to the second temperature detecting element 40B, respectively.

As shown in Fig. 2, each of the first energizing pin 10A and the second energizing pin 10B is formed in a rod shape by a metal. The energizing pin 10 has, for example, a contact 11 and a wire connecting portion 12. The contact 11 is a round bar. That is, the energizing pin 10 is a round pin. The tip end side of the contact 11 is used for electrical connection with the receptacle corresponding to the plug of the present embodiment. The wire connecting portion 12 is formed on the rear end side of the contact 11. The wire connecting portion 12 is formed in a rectangular bar shape.

The plurality of energizing pins (10) are arranged in parallel in the longitudinal direction. In the present embodiment, the first energizing pin 10A and the second energizing pin 10B are parallel to each other in the first direction (the up-and-down direction in Figs. 4 and 5) (For example, left and right directions of the plug, left and right directions in Fig. 3) perpendicular to the first direction.

The grounding rail 20 is formed of metal. More specifically, the grounding rail 20 is formed by bending a metal plate of a predetermined shape. The grounding rail 20 includes a pair of contact pieces 21, a connecting piece 22, a wire connecting portion 23 and a grounding pin container 24 as shown in Figs. Hereinafter, if necessary, one of the pair of contact pieces 21 is referred to as a first contact piece 21A and the other is referred to as a second contact piece 21B.

Each of the pair of contact pieces 21 is elongated. The pair of contact pieces 21 are arranged in parallel to each other in the longitudinal direction. In the present embodiment, the first contact piece 21A and the second contact piece 21B are parallel to each other in the first direction (the up-and-down direction in Figs. 4 and 5) (For example, a vertical direction of the plug, and a vertical direction in Fig. 3) perpendicular to the two directions. Further, in the first direction, the pair of contact pieces 21 are located at the same position.

The connecting piece 22 connects the pair of contact pieces 21 with each other. The central portion of the connecting piece 22 is recessed rearwardly, whereby a recess 25 facing forward is formed.

More specifically, as shown in Fig. 6, the connecting piece 22 has a pair of vertical pieces 221, a pair of horizontal pieces 222, and a connecting piece 223. Hereinafter, if necessary, one of the pair of vertical pieces 221 is referred to as a first vertical piece 221A and the other is referred to as a second vertical piece 221B. One side of the pair of side pieces 222 is referred to as a first side piece 222A and the other side is referred to as a second side piece 222B, if necessary.

The first vertical piece 221A extends from one side (the first contact piece 21A) toward the other side (the second contact piece 21B) of the pair of contact pieces 21, and the second vertical piece 221B extend from one of the pair of contact pieces 21 (the second contact piece 21B) toward one (first contact piece 21A). The first vertical piece 221A extends from the rear end of the first contact piece 21A along the third direction and the second vertical piece 221B extends from the rear end of the second contact piece 21B And extends in the third direction. In the present embodiment, the first vertical piece 221A is longer than the second vertical piece 221B. However, the first longitudinal piece 221A may be shorter than the second longitudinal piece 221B, or may be the same length as the second longitudinal piece 221B.

The first lateral piece 222A extends rearward from the first longitudinal piece 221A. The second lateral piece 222B extends rearward from the second longitudinal piece 221B. The first lateral piece 222A extends in a direction away from the first contact piece 21A in the first direction from the front end of the first longitudinal piece 221A and the second lateral piece 222B Extends in the direction away from the second contact piece 21B in the first direction from the tip of the second vertical piece 221B. The first lateral piece 222A and the second lateral piece 222B are parallel to each other and have the same length.

The connecting piece 223 connects the first lateral piece 222A and the second lateral piece 222B. In this embodiment, the connecting piece 223 extends along the third direction, and connects the front ends of the first lateral piece 222A and the second lateral piece 222B. The sum of the lengths of the connecting piece 223 and the first vertical piece 221A and the second vertical piece 221B is substantially equal to the distance between the pair of contact pieces 21. [

The connecting piece 22 forms a concave portion 25 which is a space surrounded by the first lateral piece 222A and the second lateral piece 222B and the connecting piece 223.

The wire connecting portion 23 is used for connecting the ground wire 53. As shown in Fig. 2, the wire connecting portion 23 is of a flat plate shape, and is provided on the connecting piece 22. Fig. More specifically, the wire connecting portion 23 extends from the first lateral piece 222A of the connecting piece 22 in a direction away from the second lateral piece 222B in the third direction. The wire connecting portion 23 may be provided at a portion of the connecting piece 22 other than the first lateral piece 222A.

The grounding pin container 24 is used for connection of a grounding pin arbitrarily provided to the receptacle to which the plug of the present embodiment is connected. The ground pin container 24 is provided with a pair of spring portions 241. The ground pin container 24 holds the ground pin between the pair of spring pieces 241. The pair of spring pieces 241 are provided on the connecting piece 22. More specifically, the pair of spring pieces 241 extend forward (in a direction toward the first contact piece 21A in the first direction) from both sides (both sides in the width direction) of the first vertical piece 221A, Respectively.

7 to 9, each of the first temperature detecting element 40A and the second temperature detecting element 40B includes a temperature sensitive portion 41 and a pair of terminals 42, 43 (lead terminal). The temperature sensing portion 41 is a portion for sensing the ambient temperature. The temperature sensing portion 41 is a flat plate type and has a flat temperature sensing surface 44. The temperature detecting element 40 is, for example, a thermistor, and more specifically, a PTC thermistor. Therefore, the resistance value of the temperature sensing part 41 changes in accordance with the ambient temperature.

The terminal 43 of the first temperature detecting element 40A and the terminal 43 of the second temperature detecting element 40B are electrically connected to each other. That is, the first temperature detecting element 40A and the second temperature detecting element 40B are connected in series. The first temperature detecting element 40A and the second temperature detecting element terminal 43 are output terminals and are electrically connected to the first signal line 54 and the second signal line 55, respectively.

The plurality of temperature detecting elements (40) are arranged at intervals from the plurality of energizing fins (10), respectively, and detect the temperatures of the plurality of energizing fins (10). Particularly, in the present embodiment, the plurality of temperature detecting elements 40 include a first temperature detecting element 40A and a second temperature detecting element 40B separate from the first temperature detecting element 40A.

The first temperature detecting element 40A is used for detecting the temperature of the first energizing pin 10A.

Particularly, the temperature detecting surface 44 of the first temperature detecting element 40A is opposed to the wire connecting portion 12 of the first energizing pin 10A.

The second temperature detecting element 40B is used for detecting the temperature of the second energizing pin 10B.

Particularly, the temperature detecting surface 44 of the second temperature detecting element 40B faces the wire connecting portion 12 of the second energizing pin 10B.

2 to 5, the plug main body 30 includes a first cover 31 (front cover), a body block 32, a second cover 33 (rear cover), a shell shell 34, a pair of screws 35, and a contact prevention member 36. [ 1, the plug main body 30 has a receiving space 37 for accommodating a plurality of temperature detecting elements 40. In addition,

The first cover 31, the body block 32, the second cover 33, the shell 34 and the contact preventive member 36 are formed of a resin having electrical insulation.

The first cover 31 mainly constitutes a front portion of the plug main body 30. The first cover 31 has a front wall portion 311 and a circumferential wall portion 312.

The front wall portion 311 serves as a front wall portion of the plug main body 30. The front wall portion 311 has a substantially disk shape. As shown in Fig. 2, the front wall 311 has a plurality of (two in this embodiment) energizing pin insertion holes 3111 and a grounding pin 3112 for the grounding pin. Hereinafter, one of the two energizing pin insertion holes 3111 is referred to as a first energizing pin insertion hole 3111A, and the other is referred to as a second energizing pin insertion hole 3111B, if necessary. The energizing pin insertion hole 3111 has such a size that it passes through the contact 11 of the energizing pin 10 but does not pass through the wire connecting portion 12. In the present embodiment, the energizing pin insertion hole 3111 is circular. The receiving hole 3112 for the ground pin is formed to have a size that passes through the above ground pin. In the present embodiment, the hole 3112 for the grounding pin is circular.

The circumferential wall portion 312 becomes the circumferential wall portion of the plug main body 30. The circumferential wall portion 312 is cylindrical. Particularly, in the present embodiment, the circumferential wall portion 312 is of a square type. The circumferential wall portion 312 protrudes rearward from the front wall portion 311. The peripheral wall portion 312 has a pair of grooves 3121 (3121A and 3121B) for exposing the pair of contact pieces 21. A pair of grooves 3121A and 3121B are formed on both sides of the circumferential wall 312 in the third direction. That is, as shown in Fig. 3, the pair of grooves 3121A and 3121B are arranged at intervals in the third direction. Further, the pair of grooves 3121A and 3121B are located between the first energizing pin insertion hole 3111A and the second energizing pin insertion hole 3111B in the second direction. The rear ends of the pair of grooves 3121A and 3121B are open. The circumferential wall portion 312 has a pair of first fitting portions 3122 separated in the second direction on each of both surfaces in the third direction. The first engaging portion 3122 is used for engaging the first cover 31 and the body block 32.

In the plug of the present embodiment, the first energizing pin 10A, the second energizing pin 10B, and the grounding rail 20 are mounted on the first cover 31. [

1, the grounding rail 20 is formed so that the pair of contact pieces 21A and 21B are located in the pair of grooves 3121A and 3121B of the circumferential wall 312, Respectively. As a result, a receiving space 37 is formed between the front wall portion 311 and the ground rail 20. The concave portion 25 of the connecting piece 22 of the grounding rail 20 faces the front wall portion 311 and constitutes a part of the accommodation space 37 (rear portion in the present embodiment).

2, the first energizing pin 10A is formed so that the front end portion (the contact 11) is protruded forward from the front wall portion 311 through the first energizing pin insertion hole 3111A, 31). The second energizing pin 10B is mounted on the first cover 31 such that the front end portion (the contact 11) protrudes forward from the front wall portion 311 through the second energizing pin insertion hole 3111B. As a result, the first energizing pin 10A and the second energizing pin 10B are located on both sides of the accommodation space 37 in the second direction. That is, the accommodation space 37 is surrounded by the first energizing pin 10A, the second energizing pin 10B and the pair of contact pieces 21A and 21B.

The body block 32 mainly constitutes a rear portion of the plug main body 30. [ And includes a pair of side wall portions 321 (321A, 321B) and a receiving portion 322 located between the pair of side wall portions 321.

Each of the pair of side wall portions 321 is plate-shaped. Each of the pair of side wall portions 321 has a concave portion 3211 and a pair of second fitting portions 3212. [ The concave portion 3211 accommodates the wire connecting portion 12 of the energizing pin 10. The recessed portion 3211 is formed on the outer surface of the side wall portion 321 (the side of the side wall portion 321 opposite to the storage portion 322). The pair of second engaging portions 3212 are disposed with an interval in the third direction. The body block 32 has four second fitting portions 3212 in total. The second fitting portion 3212 is used for coupling the body block 32 and the first cover 31.

10, the receiving portion 322 is configured to accommodate a plurality of temperature detecting elements 40 (first temperature detecting elements 40A and 40B). The receiving portion 322 includes a plurality of And is used to electrically isolate the temperature detecting element 40 from the plurality of energizing pins 10 and the grounding rail 20. The accommodating portion 322 includes two wall portions 3221 [ The housing portion 322 is, for example, a rectangular box-like shape in which one surface (the upper surface in Fig. 10) is opened. In the present embodiment, The outer surface of the wall portion 3221A (the surface facing the outside of the storage portion 322, the right surface in FIG. 10) is the bottom surface of the recess 3211 of the side wall portion 321A, The left side in Fig. 10) is the bottom surface of the concave portion 3211 of the side wall portion 321B.

The second cover 33 is mounted on the rear side of the body block 32 so as to hold the cable 50 with the body block 32. The second cover 33 is of a flat plate type. In the present embodiment, the second cover 33 is fixed to the body block 32 by using a pair of screws 35. [

The shell 34 covers a part of the first cover 31, the body block 32, the second cover 33, and the first end of the cable 50. The shell 34 is a component formed by insert molding rather than a component prepared in advance. Therefore, the shell 34 is not shown in Fig.

The contact preventive member 36 is a member for preventing contact between the ground rail 20 and the output terminals of the temperature detecting elements 40. [ In the plug of the present embodiment, the first temperature detecting element 40A and the second temperature detecting element 40B are provided in the receiving space 37 between the front wall portion 311 and the ground rail 20 ). Therefore, in order to connect the first temperature detecting element 40A and the first signal line 54, the output terminal 42 of the first temperature detecting element 40A is connected to the ground rail 20 (particularly, the connecting piece 22) Respectively. Similarly, the output terminal 42 of the second temperature detecting element 40B is arranged so as to traverse the grounding rail 20 (particularly, the connecting piece 22).

8 and 9, the contact preventing member 36 includes a first contact preventing portion 361 (361A), a second contact preventing portion 361 (361B), a first contact preventing portion 361 And a connecting portion 362 connecting the contact preventing portion 361A and the second contact preventing portion 361B.

The first contact preventing portion 361A is located between the output terminal 42 of the first temperature detecting element 40A and the grounding rail 20. The first contact preventing portion 361A is formed to have a size that covers the entire output terminal 42. [ The second contact preventing portion 361B is located between the output terminal 42 of the second temperature detecting element 40B and the grounding rail 20. The second contact prevention portion 361B is formed to have a size that covers the entire output terminal 42. [

The connection portion 362 has a shape fitting with a part of the body block 32. Therefore, the contact preventive member 36 is attached to the body block 32 by the connecting portion 362. [

A method for assembling the plug of the present embodiment will be briefly described. The following description is merely an example, and the assembling method of the plug of the present embodiment is not limited to the following examples.

The first conductive wire 51 of the cable 50 is connected to the wire connecting portion 12 of the first energizing pin 10A and the second conductive wire 52 is connected to the wire connecting portion 12B of the second energizing pin 10B, The first signal line 54 is connected to the output terminal 42 of the first temperature detecting element 40A and the second signal line 55 is connected to the output terminal 42 of the second temperature detecting element 40B, (42).

Next, the temperature detecting elements 40A and 40B are accommodated in the accommodating portion 322 of the body block 32. [ 10, the temperature detection surface 44 of the first temperature detection element 40A is opposed to the wall portion 3221A and the temperature detection surface 44 of the second temperature detection element 40B is opposed to the wall portion 3221A. And faces the wall portion 3221B. Further, the contact preventing member 36 is mounted on the body block 32. [

The wire connecting portion 12 of the first energizing pin 10A is disposed in the concave portion 3211 of the side wall portion 321A of the body block 32 and the wire connecting portion 12 of the second energizing pin 10B, Is disposed in the concave portion 3211 of the side wall portion 321B of the body block 32. [

10, the temperature detecting surface 44 of the first temperature detecting element 40A is opposed to the electric wire connecting portion 12 of the first energizing pin 10A, and the wall portion 3221A is opposed to the first And is located between the temperature detecting surface 44 of the temperature detecting element 40A and the wire connecting portion 12 of the first energizing pin 10A. The temperature detecting surface 44 of the second temperature detecting element 40B is opposed to the wire connecting portion 12 of the second energizing pin 10B and the wall portion 3221B is opposed to the second temperature detecting element 40B Is located between the temperature detection surface (44) and the wire connecting portion (12) of the second energizing pin (10B).

Next, the grounding rail 20 is disposed at a predetermined position of the body block 32. The receiving portion 322 of the body block 32 is located in the space (receiving space 37) surrounded by the pair of contact pieces 21A and 21B and the connecting piece 22 of the ground rail 20. 7 to 9, each of the first temperature detecting element 40A and the output terminal 42 of the second temperature detecting element 40B is arranged so as to traverse the grounding rail 20. However, the first contact prevention portion 361A is located between the output terminal 42 of the first temperature detection element 40A and the ground rail 20, and the second contact prevention portion 361B is located between the output terminal 42 of the first temperature detection element 40A and the ground rail 20, Is located between the output terminal (42) of the ground terminal (40B) and the ground rail (20).

Further, the ground wire 53 of the cable 50 is electrically connected to the wire connecting portion 23 of the ground rail 20.

Thereafter, the first cover 31 is mounted on the front side of the body block 32, and the second cover 33 is mounted on the rear side of the body block 32.

When the first cover 31 is mounted on the body block 32, the contacts 11 of the first energizing pin 10A and the second energizing pin 10B are connected to the first energizing pin insertion hole 3111A and the second energizing pin 2 energizing pin insertion hole 3111B. Further, a pair of contact pieces 21A and 21B of the grounding rail 20 are arranged in the pair of grooves 3121A and 3121B, respectively. Further, the grounding pin container 24 of the grounding rail 20 is inserted into the receiving hole 3112 for the grounding pin. The first cover 31 is formed by fitting the four first fitting portions 3122 of the peripheral wall 312 and the four second fitting portions 3212 of the body block 32 respectively, 32). Thus, as shown in Fig. 1, the temperature detecting element 40 is accommodated in the accommodating space 37. As shown in Fig.

The second cover 33 is mounted on the rear side of the body block 32 using a pair of screws 35.

Finally, by the insert molding, the shell 34 is formed.

Thus, the plug of this embodiment as shown in Figs. 3 to 5 can be obtained. The plug of the present embodiment has a plug main body 30 having a front wall portion 311 and a cylindrical main wall portion 312 protruding rearward from the front wall portion 311 and a plug body 30 having a front end portion (contact 11) A plurality of energizing fins 10 housed in the plug main body 30 so as to protrude forward from the front wall portion 311 and a plurality of energizing fins 10 disposed in the plug main body 30, A plurality of temperature detecting elements 40 each for detecting the temperature of the energizing pins 10 and a pair of elongated contact pieces 21 exposed on both sides of the circumferential wall 312, And a ground rail (20) having a connecting piece (22) connecting the pair of contact pieces (21). The connecting piece 22 has a shape bent so as to have a concave portion 25 opposed to the front wall portion 311. The concave portion 25 constitutes at least a part of the accommodation space 37 for accommodating the plurality of temperature detecting elements 40 between the front wall portion 311 and the grounding rail 20. [

(Other Embodiments)

In the plug of another embodiment of the present invention, the connecting piece 22 includes a vertical piece 221 extending from one side of the pair of contact pieces 21 to the other side, A second lateral piece 222B extending rearward from the other direction of the pair of contact pieces 21 and a second lateral piece 222B extending from the first lateral piece 222A and the second lateral piece 222B 222B that are connected to each other. In this case as well, the concave portion 25 is a space surrounded by the first lateral piece 222A, the second lateral piece 222B, and the connecting piece 223.

In short, in the plug according to the present invention, the connecting piece 22 may have a bent shape so as to have a concave portion 25 opposed to the front wall portion 311.

In the plug according to another embodiment of the present invention, the recessed portion 25 may constitute not all of the accommodation space 37 but all of them. In other words, if the concave portion 25 constitutes at least a part of the accommodation space 37, the size of the plug body 30 can be suppressed.

The plug according to another embodiment of the present invention includes a first signal line 54 which is connected to the first temperature detecting element 40A across the ground rail 20 and a second signal line 54 which crosses the ground rail 20, And a second signal line 55 connected to the element 40B. The plug main body 30 may further include a first contact preventive portion 361A and a second contact preventive portion 361B having electrical insulation. The first contact preventing portion 361A may be located between the first signal line 54 and the ground rail 20. [ The second contact preventing portion 361B may be located between the second signal line 55 and the ground rail 20. [

The shape of the first contact preventing portion 361A and the second contact preventing portion 361B is not particularly limited and may be a shape that can prevent contact with the grounding rail 20. [

In other words, in the plug according to the present invention, if a member having electrical insulation is disposed between the wiring for pulling the output of the temperature sensing portion 41 of the temperature detecting element 40 to the outside and the grounding rail 20 do.

The plug of another embodiment of the present invention does not need to have the cable 50. [ In this case, the plug may include a terminal block to which the cable 50 is detachably connected.

The plug of the other embodiment of the present invention does not need to include the shell 34. [

In the plug of another embodiment of the present invention, the plug body 30 may be stationary.

In the plug according to another embodiment of the present invention, the temperature detecting element 40 may be an NTC thermistor. In short, the temperature detecting element 40 is not particularly limited.

The plug according to the present invention does not necessarily have to be a plug suitable for CEE7 / 7. For example, the plug according to the present invention may be a plug suitable for a standard other than CEE7 / 7 (such as CEE7 / 4). In short, the present invention is applicable to a plug having a ground rail. The number of wires of the cable 50 is changed in accordance with the number of the energizing pins 10, the presence of the grounding pin container 24, and the layout of the pins (energizing pins and grounding pins). Also, the shape of the energizing pin 10 is changed according to the standard. For example, the energizing pin 10 may be a rectangular rod. That is, the energizing pin 10 may be a pin.

(Form of the invention)

The plug of the first aspect of the present invention has the plug main body 30 having the front wall portion 311 and the cylindrical main wall portion 312 protruding rearward from the front wall portion 311, A plurality of energizing fins 10 housed in the plug body 30 such that respective front ends (contacts 11) protrude forward from the front wall portion 311; A ground rail 20 having a pair of elongated contact pieces 21 which are respectively exposed in the plug main body 30 and connection pieces 22 connecting the pair of contact pieces 21 in the plug main body 30, And a plurality of temperature detecting elements (40) arranged in the plug body (30) and spaced apart from the plurality of energizing fins (10) to detect the temperature of the plurality of energizing fins (10). The connecting piece 22 has a shape curved so as to have a concave portion 25 opposed to the front wall portion 311. The recess 25 constitutes at least a part of the accommodation space 37 for accommodating the plurality of temperature detecting elements 40 between the front wall 311 and the ground rail 20.

The connection piece 22 of the ground rail 20 has a bent shape so as to have a concave portion 25 opposed to the wall portion 311 and the concave portion 25 has a front wall portion 311, At least a part of the accommodation space (37) for accommodating the plurality of temperature detecting elements (40) is provided between the ground rail (20) and the ground rail (20). The plurality of temperature detecting elements 40 are accommodated in front of the ground rails 20, not behind the ground rails 20. Therefore, the size of the plug main body 30 is prevented. Further, the temperature detecting element 40 can be made closer to the front end portion of the energizing pin 10. Generally, the heat generated in the energizing pin 10 occurs at the front end portion. Therefore, the detection accuracy of the heat generation in the energizing pin 10 is improved. In addition, since the plurality of temperature detecting elements 40 for detecting the temperatures of the plurality of energizing fins 10 are provided, as compared with the case where only one temperature detecting element is provided for a plurality of energizing fins 10, The heat generated in the fin 10 can be detected with good precision. Therefore, it is possible to detect the heat generation from the plurality of energizing fins 10 with good accuracy while preventing the plug main body 30 from becoming large.

The plug of the second form according to the present invention is realized by a combination with the first form. In the second embodiment, the connecting piece 22 includes a first vertical piece 221A extending from one side of the pair of contact pieces 21 to the other side, and a second vertical piece 221B extending from the other side of the pair of contact pieces 21 A first lateral piece 222A extending rearward from the first longitudinal piece 221A and a second lateral piece 222B extending rearward from the second longitudinal piece 221B And a connecting piece 223 connecting the first lateral piece 222A and the second lateral piece 222B to each other. The concave portion 25 is a space surrounded by the first lateral piece 222A, the second lateral piece 222B and the connecting piece 223.

According to the plug of the second embodiment, the first temperature detecting element 40A and the second temperature detecting element 40B are provided in the space surrounded by the first energizing pin 10A, the second energizing pin 10B and the pair of contact pieces 21, The element 40B is received. Therefore, the size of the plug main body 30 can be further prevented.

A plug according to a third aspect of the present invention is realized by a combination with the first or second aspect. In the third embodiment, the plurality of energizing fins 10 include a first energizing pin 10A and a second energizing pin 10B. The first energizing pin 10A and the second energizing pin 10B are spaced apart from each other in a second direction perpendicular to the first direction along the front-back direction of the plug main body 30. [ The pair of contact pieces 21A and 21B are arranged with a gap in a third direction orthogonal to the first direction and the second direction and the first conductive pin 10A ) And the second energizing pin (10B). The plurality of temperature detecting elements 40 include a first temperature detecting element 40A for detecting the temperature of the first energizing fin 10A and a second temperature detecting element 40A for detecting a temperature of the second energizing fin 10B. And a detection element 40B. The accommodation space 37 is surrounded by the first energizing pin 10A, the second energizing pin 10B and the pair of contact pieces 21A and 21B.

According to the plug of the third embodiment, the space surrounded by the first energizing pin 10A, the second energizing pin 10B and the pair of contact pieces 21, 21 is provided with the first temperature detecting element 40A and the second temperature The detector element 40B is accommodated. Therefore, the size of the plug can be further reduced.

The plug of the fourth form according to the present invention is realized by a combination with the third form. In the fourth embodiment, the plug main body 30 further includes a first contact preventive portion 361A and a second contact preventive portion 361B having electrical insulation. Each of the first temperature detecting element 40A and the second temperature detecting element 40B includes an output terminal 42 arranged to cross the ground rail 20. The first contact preventing portion 361A is located between the output terminal 42 of the first temperature detecting element 40A and the grounding rail 20. The second contact preventing portion 361B is located between the output terminal 42 of the second temperature detecting element 40B and the grounding rail 20.

According to the plug of the fourth embodiment, it is possible to reliably prevent the first temperature detecting element 40A and the second temperature detecting element 40B from being grounded. Therefore, the reliability of the temperature detection of the plug is improved.

The plug of the fifth form according to the present invention is realized by a combination with the third form. The plug has a first signal line 54 across the ground rail 20 and connected to the first temperature sensing element 40A and a second signal line 54 across the ground rail 20, And a second signal line 55 connected to the temperature detecting element 40B. The plug main body 30 further includes a first contact preventing portion 361A and a second contact preventing portion 361B having electrical insulation. The first contact prevention portion 361A is located between the first signal line 54 and the ground rail 20. [ The second contact prevention portion 361B is located between the second signal line 55 and the ground rail 20.

According to the plug of the fifth embodiment, it is possible to reliably prevent the first temperature detecting element 40A and the second temperature detecting element 40B from being grounded. Therefore, the reliability of the temperature detection of the plug is improved.

A plug according to a sixth aspect of the present invention is realized by a combination of any one of the third to fifth aspects. In the sixth embodiment, the plug main body 30 further includes a first wall portion 3221A and a second wall portion 3221B which are electrically insulative. The first wall portion 3221A is located between the first energizing pin 10A and the first temperature detecting element 40A. The second wall portion 3221B is located between the second energizing pin 10B and the second temperature detecting element 40B.

The plug of the sixth embodiment can reliably electrically insulate the first energizing pin 10A and the second energizing pin 10B from the first temperature detecting element 40A and the second temperature detecting element 40B . The first wall portion 3221A and the second wall portion 3221B allow heat to flow from the first energizing pin 10A and the second energizing pin 10B to the first temperature detecting element 40A and the second temperature detecting element 32B, So that the detection accuracy of heat generation in the first energizing pin 10A and the second energizing pin 10B is improved.

10: energizing pin
10A: first energizing pin
10B: second energizing pin
20: Ground rail
21: contact piece
22: Connection
221A: first vertical piece
221B: second vertical piece
222A: first lateral piece
222B: second lateral piece
223: Connection
25:
30: Plug body
311: Front wall part
312:
3221A: first wall portion
3221B: second wall portion
361A: first contact prevention portion
361B: second contact prevention portion
37: Reception space
40: Temperature detecting element
40A: first temperature detecting element
40B: second temperature detecting element
42: Output terminal
54: first signal line
55: second signal line

Claims (6)

A plug main body having a front wall portion and a cylindrical main wall portion protruding rearward from the front wall portion,
A plurality of energizing pins housed in the plug body so that the front end of each of the energizing protrusions protrudes forward from the front wall,
A ground rail having a pair of elongated contact pieces exposed on both sides of the circumferential wall portion and a connecting piece for connecting the pair of contact pieces in the plug main body,
And a plurality of temperature detecting elements arranged in the plug body and spaced apart from the plurality of energizing fins to detect the temperatures of the plurality of energizing fins,
And,
The connecting piece has a shape curved so as to have a concave portion facing the front wall portion,
Wherein the recess comprises at least part of an accommodation space for accommodating the plurality of temperature detecting elements between the front wall portion and the ground rail,
plug. The method according to claim 1,
The connecting piece
A first vertical piece extending from one of the pair of contact pieces toward the other,
A second vertical piece extending from the other side of the pair of contact pieces toward one side,
A first lateral piece extending rearward from the first longitudinal piece,
A second lateral piece extending rearward from the second longitudinal piece, and
And a connecting piece connecting the first lateral piece and the second lateral piece
To have,
Wherein the concave portion is a space surrounded by the first lateral piece, the second lateral piece, and the connecting piece. 3. The method according to claim 1 or 2,
Wherein the plurality of energizing pins include a first energizing pin and a second energizing pin,
Wherein the first energizing pin and the second energizing pin are spaced apart from each other in a second direction orthogonal to the first direction along the front-
Wherein the pair of contact pieces are disposed with a gap in a third direction orthogonal to the first direction and the second direction, and between the first energizing pin and the second energizing pin in the second direction Lt; / RTI >
Wherein the plurality of temperature detecting elements comprise a first temperature detecting element for detecting the temperature of the first energizing pin and a second temperature detecting element for detecting the temperature of the second energizing pin,
Wherein the receiving space is surrounded by the first energizing pin, the second energizing pin, and the pair of contact pieces. The method of claim 3,
The plug main body further includes a first contact preventive portion and a second contact preventive portion having electrical insulation,
Each of the first temperature detecting element and the second temperature detecting element has an output terminal arranged to cross the ground rail,
Wherein the first contact prevention portion is located between the output terminal of the first temperature detection element and the ground rail,
And the second contact prevention portion is located between the output terminal of the second temperature detection element and the ground rail. The method of claim 3,
A first signal line connected to the first temperature detecting element across the ground rail,
A second signal line connected to the second temperature detecting element across the ground rail,
Further comprising:
The plug main body further includes a first contact preventive portion and a second contact preventive portion having electrical insulation,
Wherein the first contact prevention portion is located between the first signal line and the ground rail,
And the second contact prevention portion is located between the second signal line and the ground rail. The method of claim 3,
The plug body further has a first wall portion and a second wall portion which are electrically insulative,
Wherein the first wall portion is located between the first energizing pin and the first temperature detecting element,
And the second wall portion is located between the second energizing pin and the second temperature detecting element.




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JP2016213118A (en) * 2015-05-12 2016-12-15 パナソニックＩｐマネジメント株式会社 plug
JP6748968B2 (en) * 2016-12-19 2020-09-02 パナソニックＩｐマネジメント株式会社 plug
AT521095B1 (en) * 2018-03-16 2020-12-15 Feller Gmbh plug
JP2020202072A (en) * 2019-06-10 2020-12-17 本田技研工業株式会社 External connection structure for vehicle
DE102020124513A1 (en) * 2020-09-21 2022-03-24 Lisa Dräxlmaier GmbH DEVICE FOR ELECTRICALLY CHARGING AN ELECTRIC VEHICLE BATTERY AND METHOD FOR MANUFACTURING AN ELECTRICALLY CHARGING DEVICE FOR AN ELECTRIC VEHICLE BATTERY

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WO2014091552A1 (en) 2012-12-11 2014-06-19 富士電線工業株式会社 Plug and cord equipped with plug

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RU2016111122A (en) 2017-09-28

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