JP5904412B2 - Joint connector with built-in noise filter - Google Patents

Description

  The present invention relates to a joint connector with a built-in noise filter.

  In order to remove noise, a noise removing component (noise filter) such as a capacitor is generally connected to a connector terminal used for electrical connection between wiring boards. Then, as a means for assembling the capacitor between the terminals, a pair of elastic metal members is provided at the connection portion of each terminal, and the capacitor is connected by elastically sandwiching the capacitor between the pair of metal members. A technique for facilitating work is disclosed (for example, see Patent Document 1).

JP 2007-287642 A

  However, the above-mentioned connector is simply sandwiched between a pair of metal members as a means for fixing the capacitor and supported from below by a support base. Therefore, when used in an environment with a large vibration such as in-vehicle use, there is a problem that the capacitor is displaced upward due to the vibration and detached from the terminal, resulting in poor connection.

  The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a joint connector with a built-in noise filter in which a capacitor does not cause poor connection even in an environment with large vibrations.

The joint connector with built-in noise filter of the present invention is
Terminal fittings,
A capacitor composed of a terminal connection portion and a capacitor body connected to the terminal fitting,
Up and down the capacitor body has a capacitor housing portion for housing while the left and right and suppress rattling in the longitudinal direction, a mating connector to be fitted to the connector housing,
An elastic restricting portion that is provided in the capacitor housing portion and elastically abuts against the capacitor main body and restricts shakiness of the capacitor ; and
The terminal connection portion is a lead wire provided to protrude rearward from the capacitor body, and the lead wire and the terminal fitting are arranged back and forth along the fitting direction with the mating connector, and the ends thereof While are connected by welding
An opening for accommodating the capacitor is opened on the front surface of the capacitor accommodating portion, and the elastic regulating portion is provided on the inner surface of the lid that closes the insertion port,
When the insertion port is closed by the lid, the elastic restricting portion biases the capacitor body so as to press the capacitor main body against the rear wall of the capacitor housing portion from the fitting direction. .

According to the present invention, the capacitor main body is accommodated in the capacitor accommodating portion provided in the connector housing in a state in which displacement in the three-dimensional direction is suppressed, so that the capacitor is detached from the capacitor accommodating portion even if vibration is applied. Can be prevented. In addition, since the capacitor accommodating portion is provided with an elastic restricting portion that elastically contacts the capacitor main body other than the terminal connection portion, rattling of the capacitor main body due to vibration is absorbed by the elastic restricting portion, and accompanying it. Since the terminal connection portion connected to the terminal fitting is not rattled, the connection reliability between the terminal fitting and the terminal connection portion of the capacitor is improved.
In addition, since the capacitor lead wires and the terminal fittings are connected by welding, they are more resistant to vibration and can improve the connection reliability than the connection method using press-fitting or press-contact. An elastic restricting portion is provided on the inner surface of the lid that closes the insertion port for accommodating the capacitor main body. Therefore, at the same time as the insertion port is closed by the lid, the elastic regulating portion provided on the inner surface of the lid presses the front end surface of the accommodated capacitor body, and the capacitor body is pressed against the rear wall of the capacitor housing portion. Shaking of the main body can be suppressed, and the lead wire connected to the terminal fitting is not rattled accordingly, so that the connection reliability between the terminal fitting and the capacitor lead wire is improved.

Side sectional view of the joint connector with built-in noise filter according to the first embodiment. Plan sectional view of the joint connector with built-in noise filter according to the first embodiment. The cross-sectional view which expanded the part of the joint connector with a built-in noise filter concerning Example 2 The cross-sectional view which expanded the part of the joint connector with a built-in noise filter which accommodated the large sized capacitor concerning Example 2

(2) The noise filter built-in joint connector of the present invention is
The connector housing is preferably composed of a connector housing main body that holds the terminal fitting, and the capacitor housing portion that is formed separately from the connector housing main body and can be assembled to the connector housing main body.
According to this configuration, the capacitor housing portion formed separately can be mounted on the connector housing body. Therefore, when a request for changing the capacity or type of the capacitor to be incorporated occurs, it is sufficient to replace only the capacitor housing portion and attach it to the connector housing main body, and the connector housing main body portion can be used in common.

(3) The noise filter built-in joint connector of the present invention is
It is preferable that the connector housing has a configuration in which an openable / closable portion is formed in a region corresponding to a connection portion between the lead wire and the terminal fitting.
According to this configuration, by opening the opening / closing part, a space for welding the capacitor lead wire and the terminal fitting can be secured, the connection work can be simplified, and workability can be improved. Conventionally, the welding operation is performed by separately providing a holder portion for holding and fixing the terminal fitting and the lead wire, and the connector portion is configured by housing the holder portion in the connector housing. Since it is not necessary to provide the part separately, the configuration can be simplified.

Embodiments 1 and 2 embodying the noise filter built-in joint connector of the present invention will be described with reference to the drawings.
<Example 1>
A joint connector 10 with built-in noise filter (hereinafter referred to as a connector) of the present embodiment includes first and second bus bar terminals (terminal fittings) 21A and 21B, a noise removing capacitor 30, and a plastic connector housing 11. It is configured with. In the following description, in the front-rear direction, the left side of FIG. 1 is referred to as the front side.

  The first and second bus bar terminals 21A and 21B are formed by punching a metal conductive plate such as a copper alloy and performing bending or the like. Each of the bus bar terminals 21 </ b> A and 21 </ b> B includes a plurality of terminal portions 22, a strip-like connecting portion 23 that connects them, and an extension portion 24 and a connecting portion 25 that connects to a lead wire 31 of the capacitor 30. As shown in FIG. 2, the belt-like connecting portion 23 is a belt-like metal plate that is long in the width direction. The terminal portion 22 protrudes from one side edge of the belt-like connecting portion at a predetermined pitch, has a tab shape, and has a sharp tip. The terminal portion is connected when the terminal fitting (not shown) held by the counterpart connector (not shown) and the counterpart connector are fitted. Further, an extended portion 24 is formed from the edge of the strip-shaped connecting portion 23 opposite to the terminal portion 23, and the distal end of the extended portion 24 serves as a connecting portion 25 connected to the lead wire 31 of the capacitor 30.

  Further, the first and second bus bar terminals 21A and 21B are arranged in two stages in the height direction of the connector housing 11 as shown in FIG. The first bus bar terminal 21A is on the upper side, and the lower side is the second bus bar terminal 21B. The first bus bar terminal 21A is on the positive electrode side, and the second bus bar terminal 21B is on the negative electrode side (ground side). As shown in FIG. 1, the extending portion 24A of the first bus bar terminal 21A (hereinafter referred to as the first extending portion 24A) has no step over the entire length and is formed flat. On the other hand, the extension part 24B (hereinafter referred to as the second extension part 24B) of the second bus bar terminal 21B has its tip part (that is, the connection part 25) aligned with the same height as the first extension part 24A. In the middle of the length direction, it is bent twice at a substantially right angle. As shown in FIG. 2, the first extending portion 24 </ b> A and the second extending portion 24 </ b> B are arranged at a certain interval in the width direction of the connector housing 11, and the second extending portion 24 </ b> B is the first extending portion. It is longer than the extending portion 24A. The connecting portions 25 of the first and second extending portions 24A and 24B are referred to as first and second connecting portions 25A and 25B, respectively.

  The capacitor 30 is an aluminum electrolytic capacitor, and includes a capacitor body 32 having a cylindrical shape, and a pair of lead wires 31 having positive and negative electrodes led out from the rear end face thereof. The lead wire 31 has a round pin shape, protrudes in a substantially vertical direction from the rear end surface of the capacitor body 32, and the front end portion thereof is connected to each connection portion 25A, 25B of each bus bar terminal 21A, 21B. Of the lead wires 31, the longer protruding length is the positive lead wire 31A, and the shorter one is the negative lead wire 31B. The positive lead wire 31A is connected to the first connection portion 25A of the first bus bar terminal 21A, and the negative lead wire 31B is connected to the second connection portion 25B of the second bus bar terminal 21B.

  The connector housing 11 includes a hood portion 12 that can be mated with a mating connector, a terminal housing portion 13 that can accommodate each of the bus bar terminals 21A and 21B and the lead wires 31A and 31B of the capacitor 30, and the hood portion 12 and the terminal housing portion. 13, the first partition wall 14 that partitions the capacitor body 15, the capacitor housing portion 15 that can house the capacitor body 32, and the second partition wall 16 that partitions the terminal housing portion 13 and the capacitor housing portion 15. As shown in FIG. 2, as the capacitor 30 is accommodated in the second partition wall 16, the diameters of the lead wires 31 </ b> A and 31 </ b> B are slightly larger than the lead wires 31 </ b> A and 31 </ b> B so that the lead wires 31 </ b> A and 31 </ b> B can be accommodated in the terminal accommodating portion 13. Two lead wire insertion holes 18 having a large diameter are opened side by side in the width direction.

  The hood portion 12 has a rectangular tube shape and is arranged at the rear end portion of the connector housing 11. Further, the rear end surface of the hood portion 12 is opened over the entire surface. The first partition wall 14 embeds and holds and fixes the belt-like connecting portions 23 of the bus bar terminals 21A and 21B integrally formed with the connector housing 11 by insert molding. The terminal portions 22 of the bus bar terminals 21 </ b> A and 21 </ b> B protrude rearward from the first partition wall 14 on the hood portion 12 side and are accommodated in the hood portion 12.

  The terminal accommodating portion 13 is formed in a rectangular tube shape in front of the hood portion 12 with the first partition wall 14 in between. Further, the extended portions 24A, 24B of the bus bar terminals 21A, 21B protrude from the first partition wall 14 to the front of the terminal accommodating portion 13 and are accommodated in the terminal accommodating portion 13. Further, as described above, the lead wires 31 </ b> A and 31 </ b> B of the capacitor 30 are also accommodated in the terminal accommodating portion 13 through the lead wire insertion holes 18 formed in the second partition wall 16.

  In addition, as shown in FIG. 1, rectangular upper surface opening / closing members are provided on the upper and lower surfaces of the terminal accommodating portion 13 located above and below the connection region between the lead wires 31A and 31B and the bus bar terminals 21A and 21B. 19A and a lower surface opening / closing member 19B are provided so as to protrude from the outer surface of the terminal accommodating portion. Each opening / closing member 19A, 19B is removable, and when each opening / closing member 19A, 19B is removed, a rectangular upper surface opening 41A, lower surface opening slightly narrower than the opening / closing member 19 on the upper and lower surfaces of the terminal accommodating portion 13 Portions 41B are formed respectively. Each connection part 25A, 25B of each bus-bar terminal 21A, 21B can be visually recognized from the upper surface opening 41A. In addition, on the front end side and the rear end side of each opening / closing member 19A, 19B, two pairs of locking claws 42 that can be bent and deformed inward are formed side by side in the width direction. Also, two pairs of locking claws 42 that can be bent and deformed inwardly are formed side by side in the front-rear direction on the left end side and the right end side of each opening and closing member 19A, 19B. The opening / closing members 19A and 19B are attached to the openings 41A and 41B by the locking claws 42 of the opening and closing members 19A and 19B being elastically locked to the opening ends of the upper and lower surfaces of the terminal accommodating portion 13, respectively.

  The capacitor accommodating portion 15 has a rectangular tube shape and is disposed at the front end portion of the connector housing 11. As shown in FIG. 2, the capacitor housing 15 is narrower than the terminal housing 13 and the hood 12. An accommodation opening (insertion opening) 46 is opened over the entire front end surface of the capacitor accommodation portion. As shown in FIG. 1, the capacitor 30 can be accommodated in the capacitor accommodation portion 15 through the accommodation opening 46. In addition, after the capacitor 30 is accommodated in the capacitor accommodating portion 15, the accommodating opening 46 can be closed with a lid 43 formed separately from the connector housing 11. The opening shape of the accommodation opening 46 is a square, and the length of one side is equal to the diameter of the capacitor body 32 to be accommodated.

  A rubber elastic body (elasticity restricting portion) 44 is formed in close contact with the inner surface of the lid body 43. When the housing opening 46 is closed by the lid body 43, the entire surface of the housing opening 46 is made of rubber. The elastic body 44 spreads in a square shape so as to close it. Further, the length L from the front surface of the second partition wall 16 to the accommodation opening 46 (the length of the capacitor accommodation portion 15) is longer than the length L1 in the front-rear direction of the capacitor body 32 to be accommodated, and is made of L1 and rubber. The elastic body 44 is set to be shorter than the length L1 + L2 obtained by adding the length L2 in the front-rear direction (L1 <L <L1 + L2). Therefore, when the capacitor body 32 is housed in the capacitor housing chamber 15 and the lid body 43 is closed, the rubber elastic body 43 is in close contact with the front end surface of the capacitor body 32 in a state of being elastically deformed so as to be crushed in the front-rear direction. Will do.

  Next, an operation of connecting the bus bar terminals 21A and 21B held in the connector housing 11 and the lead wires 31A and 31B of the capacitor 30 will be described.

  First, the capacitor 30 is inserted into the capacitor housing 15 so that the lead wire 31 faces rearward with respect to the connector housing 11 holding the bus bar terminals 21A and 21B. Then, the upper and lower and left and right end portions of the capacitor main body 32 are accommodated in the capacitor accommodating portion 15 while being in contact with the upper and lower and left and right inner wall surfaces of the capacitor accommodating portion 15, respectively. On the other hand, the lead wire 31 passes through the lead wire insertion hole 18 provided in the second partition wall 16 in the order of the positive electrode lead wire 31A and the negative electrode lead wire 31B, and protrudes toward the terminal accommodating portion 13 side. Furthermore, when the second partition wall 16 is inserted until the rear end surface of the capacitor body 32 comes into contact, the positive electrode lead wire 31A contacts the upper surface of the first connection portion 25A, and the negative electrode lead wire 31B contacts the upper surface of the second connection portion 25B. Arranged in a state. Then, in order to prevent the position of the capacitor body 32 from shifting when the lead wires 31A, 31B and the connection portions 25A, 25B of the bus bar terminals 21A, 21B are connected, Fixing is performed by closing the lid 43. At this time, the rubber elastic body 44 formed in close contact with the inner surface of the lid body 43 is in close contact with the front end surface of the capacitor body 32 in a state of being elastically deformed so as to be crushed back and forth as the accommodation opening 46 is closed. . Thereby, the capacitor body 32 is elastically pressed against the second partition wall 16 and fixed.

  After the capacitor body 32 is fixed, the lead wires 31A and 31B and the connection portions 25A and 25B of the bus bar terminals 21A and 21B can be confirmed from the upper surface opening 41A as described above. Resistance welding with high connection reliability is used as a connection means for the connection portions 25 of the lead wires 31A and 31B and the bus bar terminals 21A and 1B. An upper welding electrode (not shown) is made to enter from the upper surface opening 41A, and a lower welding electrode (not shown) is made to enter from the lower surface opening 41B, so that the lead wires 31A and 31B and the connection parts 25A and 25B are sandwiched. These are welded by flowing. After resistance welding, the opening / closing members 19A and 19B are attached to the openings 41A and 41B, and all the operations are completed.

  Next, the function and effect of this embodiment will be described.

  In the joint connector 10 with a built-in noise filter of this embodiment, the capacitor body 32 is restricted from displacement in a three-dimensional direction (front-rear direction, up-down direction, left-right direction) by the capacitor housing portion 15 provided in the connector housing 11. Therefore, even when vibration is applied, the capacitor 30 can be prevented from being detached from the capacitor housing portion 15. Moreover, the opening shape of the capacitor | condenser accommodating part 15 is a square, The diameter of the one side and the capacitor | condenser main body 32 is set substantially equal. Moreover, since the lead wire 31 of the capacitor 30 is inserted into the lead wire insertion hole 18 having a diameter substantially equal to the diameter of the lead wire 31, the posture of the capacitor 30 as a whole is corrected. There is no rattling in the left-right direction.

  A rubber elastic body 44 that elastically contacts the front end surface of the capacitor main body 32 is provided on the inner surface of the lid 43 that closes the housing opening 46 of the capacitor housing 15. Therefore, after the capacitor 30 is housed in the capacitor housing portion 15, the housing opening 46 is closed by the lid 43, so that the rubber elastic body 44 is elastically deformed so as to be crushed in the front-rear direction on the front end surface of the capacitor body 32. Close contact with. As a result, the capacitor body 32 is pressed against the rear end surface of the capacitor housing portion 15, and the capacitor 30 is fixed. Further, since the rubber elastic body 44 not only fixes the capacitor 30 but also has an effect of absorbing vibration, the backlash of the capacitor body 32 in the front-rear direction is suppressed. In addition, the lead wires 31A and 31B of the capacitor 30 connected to the bus bar terminals 21A and 21B, which are terminal fittings, do not rattle, so that the connection reliability of the connecting portion between the lead wire 31 and the terminal fitting is eliminated. Will improve.

  Moreover, since each lead wire 31A, 31B and a terminal metal fitting are connected by resistance welding, compared with connection means, such as press fitting and contact pressure fixation, it can resist vibration and can improve connection reliability.

  Further, an upper surface opening / closing member 19A and a lower surface opening / closing member 19B are disposed on the connector housing 11 located above and below the connection region of each lead wire 31A, 31B and each bus bar terminal 21A, 21B. By removing each of the opening / closing members 19A and 19B, the upper and lower portions of the connection area described above are opened, and a wide working space can be secured when resistance welding the lead wires 31A and 31B and the terminal fittings. Thereby, connection work becomes simple and workability | operativity can be improved. Conventionally, the connector 10 has been configured by separately providing a holder portion for holding and fixing the terminal fitting and the lead wire 31 and performing resistance welding, and incorporating the holder into the connector housing 11. Since the resistance welding operation can be performed in a state in which the lead wire 31 and the terminal fitting are accommodated in the connector housing 11 without providing the holder part separately, the configuration can be simplified.

<Example 2>
FIG. 3 is an enlarged plan sectional view of a part of the noise filter built-in joint connector 50 according to the second embodiment. In the connector housing 11 of the first embodiment described above, the hood portion 12, the terminal accommodating portion 13, and the capacitor accommodating portion 15 are integrally formed, whereas in the second embodiment, the connector housing body that holds the terminal fittings 21A and 21B. 51 is a common component, and the connector housing main body 51 is separated from the connector housing main body 51 and is capable of accommodating a plurality of types of capacitors 30 and 80 having different sizes and shapes. Is configured to be selectively mountable.

  As shown in FIG. 3, a pair of lead wire insertion holes 54 are opened on the rear end surface of the capacitor housing portion 52 </ b> A (that is, the surface corresponding to the front surface of the second partition wall 16 in the first embodiment). The lead wire insertion hole 54 has substantially the same size as the diameter of the lead wire 31 of the capacitor 30 accommodated in the same manner as in the first embodiment. A pair of locking portions 55 extending rearward from the rear end portion of the capacitor housing portion 52A is formed outside the width direction of each lead wire insertion hole 54. The locking portion 55 includes an extending portion 56 parallel to the lead wire 31 and a key claw-shaped locking claw 57 formed at the tip of the extending portion 56. The length of the extending portion 56 is set to the same length as a locking portion insertion hole 59 to be described later, and the locking claws 57 protrude outward in the width direction. Moreover, the latching | locking part 55 can be bent and deform | transformed inside.

  The front end surface of the connector housing main body 51 (that is, the surface corresponding to the rear surface of the second partition wall 16 in the first embodiment) is inserted through the engaging portion into which the lead wire 31 and the engaging portion 55 of the capacitor housing portion 52A can enter. A pair of holes 59 are formed. The diameter of the locking portion insertion hole 59 is larger than the diameter of the lead wire insertion hole 54. Specifically, the locking portion 55 is set to a size that allows the locking portion 55 to enter while being bent and deformed. Since the other structure of the connector 50 is the same as that of the first embodiment, the description thereof is omitted.

  When attaching the capacitor housing part 52 to the connector housing body 51, the latching part 55 is inserted into the latching part insertion hole 59 of the connector housing body 51 so that the latching part 55 of the capacitor housing part 52A faces rearward. To do. Then, the latching claw 57 of the latching portion 55 is elastically latched to the opening end of the latching portion insertion hole 59 of the connector housing body 51, whereby the capacitor housing portion 52A is attached. In addition, since the length of the extension part 56 and the latching | locking part insertion hole 59 is the same as above-mentioned and there is no surplus, it does not rattle in the front-back direction after the capacitor | condenser accommodating part 52A is attached.

  Then, the capacitor 30 is accommodated after the attachment of the capacitor accommodating portion 52A to the connector housing body 51 is completed. Since the subsequent assembly procedure of the connector 50 is the same as that of the first embodiment, the description thereof is omitted.

  FIG. 4 is an enlarged plan sectional view of a part of the joint connector 50 with a built-in noise filter that accommodates a large-sized capacitor 80 having a size different from that of the aluminum electrolytic capacitor used in FIG. The capacitor 80 is a film capacitor. The large capacitor 80 includes a capacitor body 82 having a rectangular parallelepiped shape and a pair of lead wires 81 led out from the rear end face of the capacitor body 82. Further, since the film capacitor has no polarity, the length of the pair of lead wires 81 is the same. The capacitor accommodating portion 52B shown in FIG. 4 is made wider than the capacitor accommodating portion 15 used in the first embodiment so that the large capacitor 80 can be accommodated. As described above, if the position of the lead wire insertion hole 54 and the position and size of the locking portion 55 are not changed, the arbitrary capacitor housing portions 52A and 52B whose shapes and sizes are changed are connected to the connector housing body 51. Can be assembled.

  According to the second embodiment, by forming the capacitor housing portions 52A and 52B separately from the connector housing body 51, the capacitor housing portions 52A and 52B capable of housing arbitrary capacitors 30 and 80 having different types and shapes are provided. It can be manufactured and assembled to the connector housing body 51. Therefore, when a request for changing the capacitor to be mounted is made, only the capacitor housing portions 52A and 52B need be changed and attached to the connector housing main body 51. Since the connector housing main body 51 can be used in common, it is highly versatile. .

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, resistance welding is used as a connection means between the lead wire of the capacitor and the terminal fitting. However, the present invention is not limited to this, and laser welding or soldering may be used.
(2) In the above embodiment, the lead wire of the capacitor has a round pin shape, but is not limited to this and may have a square pin shape or the like.
(3) In the above-described embodiment, in the terminal accommodating portion, the opening / closing member is attached to two surfaces substantially parallel to the arrangement direction of the terminal portions. However, the present invention is not limited to this, and the two surfaces are substantially perpendicular to the arrangement direction of the terminal portions. An opening / closing member may be attached.
(4) In the above embodiment, the two opening / closing members are attached to the terminal accommodating portion. However, the present invention is not limited to this, and only one may be attached.
(5) In the above embodiment, the terminal fitting is formed of a copper alloy, but other metals may be used.
(6) In the above embodiment, the elastic body is provided on the inner surface of the lid, but may be provided on the rear end surface of the capacitor housing portion (the front surface of the second partition wall).
(7) In the above embodiment, the elastic body is provided on the inner surface of the lid body. However, the elastic body is not limited to this, and may be provided on the inner side surface and upper and lower inner surfaces of the capacitor housing portion.
(8) In the above-described embodiment, the capacitor housing portion is formed in a rectangular tube shape, but is not limited thereto, and may be a cylindrical shape or the like.
(9) In the above embodiment, the gap is provided between the capacitor housing portion and the capacitor. However, the capacitor may be held in the capacitor housing portion with a small space without providing a gap.
(10) In the above embodiment, an aluminum electrolytic capacitor and a film capacitor are used as the capacitor. However, the present invention is not limited to this, and other electrolytic capacitors, ceramic capacitors, and capacitors having different capacities and shapes may be used.
(11) In the above embodiment, the terminal connection portion is a lead wire. However, the present invention is not limited to this, and an electrode provided integrally with the capacitor body may be used.

10, 50 ... Connector (Noise filter built-in joint connector)
DESCRIPTION OF SYMBOLS 11 ... Connector housing 15, 52A, 52B ... Capacitor accommodating part 19A, 19B ... Upper surface, lower surface opening / closing member (opening / closing part)
21A, 21B ... First and second bus bar terminals (terminal fittings)
30, 80 ... Capacitor 31, 81 ... Lead wire 32, 82 ... Capacitor body 43 ... Lid 44 ... Elastic body (elastic regulating part)
46 ... Housing opening (insert)
51 ... Connector housing body

Claims (3)

Terminal fittings,
A capacitor composed of a terminal connection portion and a capacitor body connected to the terminal fitting,
Up and down the capacitor body has a capacitor housing portion for housing while the left and right and suppress rattling in the longitudinal direction, a mating connector to be fitted to the connector housing,
An elastic restricting portion that is provided in the capacitor housing portion and elastically abuts against the capacitor main body and restricts shakiness of the capacitor ; and
The terminal connection portion is a lead wire provided to protrude rearward from the capacitor body, and the lead wire and the terminal fitting are arranged back and forth along the fitting direction with the mating connector, and the ends thereof While are connected by welding
An opening for accommodating the capacitor is opened on the front surface of the capacitor accommodating portion, and the elastic regulating portion is provided on the inner surface of the lid that closes the insertion port,
Built-in noise filter , wherein when the insertion port is closed by the lid body, the elastic restricting portion urges the capacitor body to press against the rear wall of the capacitor housing portion from the fitting direction. Joint connector. The connector housing includes a connector housing body that holds the terminal fitting, and the capacitor housing portion that is formed separately from the connector housing body and can be assembled to the connector housing body. The joint connector with a built-in noise filter according to claim 1. The joint connector with a built-in noise filter according to claim 1 or 2, wherein the connector housing is formed with an openable / closable portion in a region corresponding to a connection portion between the lead wire and the terminal fitting. .

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