JP2021015665A - Two-pole connector assembly, and cable-side connector portion in two-pole connector assembly - Google Patents

Abstract

To provide a two-pole connector assembly and the like which enable easy and accurate connection between terminals.SOLUTION: A two-pole connector assembly 1 includes: a cable-side connector portion 1a including a spring connector 10 and an outer conductor 30 having a hollow cylindrical shape covering a side surface of the spring connector 10 in a contactless manner; and a receiver-side connector portion 1b including an electrically conductive reception pin 90 which pushes against a distal end portion of the spring connector 10 when joined with the cable-side connector portion 1a, a housing 80 including a central portion covering a side surface of the electrically conductive reception pin 90, and a plate spring 100 which is retained in the housing 80 and is positioned on the side surface of a central portion and spaced apart from the central portion. When joined, a part of the outer conductor 30 is inserted between the central portion and the plate spring 100, and the spring connector 10 and the electrically conductive reception pin 90 contact each other.SELECTED DRAWING: Figure 6

Description

The present invention relates to a two-pole connector assembly and the like.

Conventionally, as in Patent Document 1, a connector assembly in which a connector having a plurality of electrodes has a device for joining has been proposed.

Special Table 2010-511974

However, in order to correctly connect the specified terminals at the time of joining, it is necessary to regulate the direction of joining, and it may be difficult to accurately grasp the direction of a small connector or the like.

Therefore, an object of the present invention is to provide a two-pole connector assembly or the like capable of facilitating accurate connection between terminals.

The two-pole connector assembly according to the present invention has a first connector portion having a spring connector and an outer conductor having a hollow cylindrical shape that covers the side surface of the spring connector in a non-contact manner, and a spring connector when the first connector portion is joined. A second connector having a conductive receiving pin that pushes in the tip of the conductive receiving pin, a housing including a central portion that covers the side surface of the conductive receiving pin, and a conductor receiving member that is held by the housing and is a side surface of the central portion and is located away from the central portion. A part of the outer conductor is fitted between the central portion and the conductor receiving member at the time of joining, and the spring connector and the conductive receiving pin come into contact with each other.

In order to join the first connector part and the second connector part and establish an electrical connection, it is not necessary to perform alignment such as rotating at least one of them, and the outer conductor and the central part of the housing are fitted. All you have to do is make a match.
Therefore, accurate connection between the terminals can be easily performed.

In addition, since a spring connector is used, it is possible to electrically connect the spring connector and the conductive receiving pin as long as the positional relationship is secured. Therefore, a form that does not use the spring connector (for example, a male terminal) It is possible to reduce the outer diameter of the terminal portion while maintaining the strength, as compared with the form in which the female terminal and the female terminal are fitted together.
If the outer diameter of the terminal part can be reduced, there is an advantage that the degree of freedom in connector design is increased.

Preferably, the conductor receiving member is composed of two leaf springs, a groove portion is provided on the side surface of the outer conductor over the entire circumference, and the two leaf springs are arranged in a positional relationship sandwiching the central portion. A dent is formed in a region that is in a positional relationship facing a part of the groove when the spring is joined.

The urging force of the leaf spring and the engagement between the recess and the groove make it difficult for the first connector portion and the second connector portion to come off.

More preferably, the housing is provided with side portions that are separated from the central portion and arranged so as to sandwich the central portion, and the side portions and the leaf springs are separated from the central portion and cover the side surface of the central portion. There is a relationship, and at the time of joining, a part of the outer conductor is fitted between the side portion and the central portion and between the leaf spring and the central portion.

Further, preferably, the spring connector and the hollow cylindrical shape forming the region covering the side surface of the tip end portion of the spring connector in the outer conductor have a positional relationship in which the central axes coincide with each other.

Further, preferably, the spring connector includes a conductive contact pin, a conductive tube, and an elastic member, and the region of the conductive contact pin where the elastic member contacts is in a direction in which the conductive contact pin and the elastic member are arranged. It has an inclined surface inclined with respect to a plane perpendicular to the surface, and the conductive tube houses at least the inclined surface and the elastic member of the conductive contact pin.

Also, preferably, the conductive tube is electrically connected to the first pole cable included in the cable, and the outer conductor is electrically connected to the second pole cable included in the cable.

The first connector portion in the two-pole connector assembly according to the present invention is the first connector portion in the two-pole connector assembly including the spring connector and the outer conductor having a hollow cylindrical shape that covers the side surface of the spring connector in a non-contact manner. Therefore, when the first connector portion and the second connector portion are joined, one of the external conductors is located between the central portion and the conductive receiving member located apart from the central portion covering the side surface of the conductive receiving pin in the second connector portion. The portion is fitted, the spring connector is pushed by the conductive receiving pin, and the spring connector and the conductive receiving pin come into contact with each other.

As described above, according to the present invention, it is possible to provide a two-pole connector assembly or the like capable of facilitating accurate connection between terminals.

It is a perspective view which looked at the cable side connector part in this embodiment from above in the x direction front. It is sectional drawing which shows the internal structure of the overmold in the cable side connector part. It is a perspective view which looked at the receiving side connector part from the rear in the x direction from above. It is a perspective view of the receiving side connector part as seen from the salary increase in the front in the x direction. It is sectional drawing which shows the internal structure of the receiving side connector part. It is sectional drawing which shows the internal structure of the cable side connector part and the receiving side connector part at the time of joining. FIG. 6 is an enlarged cross-sectional configuration diagram of a joint portion in FIG.

Hereinafter, this embodiment will be described with reference to the drawings. The two-pole connector assembly 1 in the present embodiment is joined to the cable-side connector portion 1a and the cable-side connector portion (first connector portion) 1a in a detachable state by fitting to the receiving-side connector portion (second connector). Part) 1b (see FIGS. 1 to 7).
For example, the two-pole connector assembly 1 is used for a connector of a charging cable that does not require data communication, such as an electronic cigarette or a wireless earphone.

In order to explain the direction, the direction in which the cable side connector portion 1a and the receiving side connector portion 1b are arranged is defined as the x direction, and one of the radial directions perpendicular to the x direction (horizontal direction) is defined as the y direction and the x direction. One of the radial directions (vertical direction) perpendicular to the y direction will be described as the z direction.
In FIG. 1, the directions indicated by the arrows on the xyz axis are defined as the forward direction, the right direction, and the upward direction, respectively.

The cable-side connector portion 1a includes a spring connector 10, an insulator sleeve 20, an outer conductor 30, a C ring 40, a cable 50, an inner mold 60, and an overmold 70.
The receiving side connector portion 1b has a housing 80, a conductive receiving pin 90, and a leaf spring (conductor receiving member) 100.

First, the details of the cable-side connector portion 1a will be described.

The spring connector 10 is composed of a conductive member, and has a conductive contact pin 11, a conductive tube 12, and a coil spring (elastic member) 13.

The conductive contact pin 11 has a hoof shape including an inclined surface 11a whose front end in the x direction has a substantially hemispherical shape and whose rear end in the x direction is inclined with respect to the yz plane perpendicular to the x direction. The intermediate portion between the front end portion and the rear end portion has a substantially cylindrical shape (see FIG. 7).
The tip of the conductive contact pin 11 comes into contact with the conductive receiving pin 90 of the receiving connector 1b at the time of joining.

The conductive tube 12 has a part or all of the conductive contact pin 11, a hollow cylindrical portion (front in the x direction) for accommodating the coil spring 13, and a cylindrical portion extending rearward in the x direction from the hollow cylindrical portion.

Before joining, that is, before the tip of the conductive contact pin 11 is pushed into the conductive tube 12, the coil spring 13 is in a state of extending in the x direction, and the conductive tube 12 is connected to the coil spring 13. A part of the conductive contact pin 11 (rear end portion and intermediate portion) is housed, and the rest (tip portion) of the conductive contact pin 11 projects forward from the conductive tube 12 in the x direction (see FIG. 2).

After joining, that is, when the tip of the conductive contact pin 11 is pushed into the conductive tube 12, the coil spring 13 is in a contracted state, and the conductive tube 12 is the coil spring 13 and the conductive contact pin. Store all (see FIGS. 6 and 7).
The cylindrical portion of the conductive tube 12 is connected to the first pole cable 51 of the cable 50 by soldering or the like.

The coil spring 13 is a compression spring whose movement is restricted by the conductive tube 12 at the rear in the x direction and is urged in a direction extending forward in the x direction (a direction in which the conductive contact pin 11 is pushed forward in the x direction).

The insulator sleeve 20 is made of an insulating member, and the tip of the conductive contact pin 11 projects forward in the x direction, and a part of the cylindrical portion of the conductive tube 12 projects rearward in the x direction. The spring connector 10 is held and fixed to the cylindrical outer conductor 30 by press fitting.

The outer conductor 30 is made of a conductive member and has a hollow cylindrical shape.
The protruding portion 30a in the front in the x direction of the outer conductor 30 covers the periphery of the portion (tip portion) protruding from the insulator sleeve 20 in the conductive contact pin 11 in a non-contact manner, and the holding portion 30b in the rear in the x direction is an insulator. Cover the side surface of the sleeve 20.
A groove (ring-shaped recess) 31 is provided on the side surface of the protrusion 30a of the outer conductor 30 over the entire circumference.
A part of the holding portion 30b of the outer conductor 30 projects rearward in the x direction, and the portion projecting rearward in the x direction is connected to the second pole cable 52 of the cable 50 by soldering or the like.

The outer diameter of the protruding portion 30a of the outer conductor 30 is smaller than the outer diameter of the holding portion 30b of the outer conductor 30 in order to prevent it from coming off from the overmold 70.

The spring connector 10 and the hollow cylindrical shape forming the protruding portion 30a (the region covering the side surface of the tip end portion of the conductive contact pin 11) of the outer conductor 30 are configured in a positional relationship in which the central axes coincide with each other. Is desirable.

The conductive contact pin 11 of the spring connector 10 is used as a terminal corresponding to the first pole cable 51 in the cable-side connector portion 1a.
The protruding portion 30a of the outer conductor 30 is used as a terminal corresponding to the second pole cable 52 in the cable-side connector portion 1a.

The cable 50 includes a first-pole cable 51 and a second-pole cable 52, and is held by the inner mold 60 via a C-ring 40 for preventing disconnection.

The inner mold 60 covers the area of the cable 50 in contact with the spring connector 10 and the outer conductor 30, the spring connector 10, the insulator sleeve 20, and the outer conductor 30, and the inner mold 60 is covered with the overmold 70.

However, when the cable-side connector portion 1a and the receiving-side connector portion 1b are not fitted, the tip portion of the conductive contact pin 11 (the portion protruding from the insulator sleeve 20) and the protruding portion 30a of the outer conductor 30 are formed. In a state of protruding forward from the overmold 70 in the x direction, other parts (holding portion 30b in the outer conductor 30) and the like are covered with the overmold 70.

The fixing of the spring connector 10 and the like by the inner mold 60 is by resin injection molding, and the C ring 40 is attached to the cable 50, and the first pole cable 51 and the spring connector 10 (the cylindrical portion of the conductive tube 12) are attached to each other. This is done after the connection and the connection between the second pole cable 52 and the outer conductor 30 have been made.
The inner mold 60 and the overmold 70 are made of an insulating member.

Next, the details of the receiving side connector portion 1b will be described.

The housing 80 is a holding member composed of an insulating member and holding the conductive receiving pin 90 and the leaf spring 100.
Specifically, the conductive receiving pin 90 extending in the x direction is held at the substantially center of the yz plane in the housing 80, and the two leaf springs 100 are held in a positional relationship sandwiching the conductive receiving pin 90 and the central portion 80a in the z direction. Will be done.
The housing 80 is provided with a hole for passing the conductive receiving pin 90 and the leaf spring 100, and the conductive receiving pin 90 and the leaf spring 100 are attached to the housing 80 by press fitting.

At the rear of the housing 80 in the x direction, a central portion 80a that covers the side surface of the conductive receiving pin 90 and a side portion 80b that is separated from the central portion 80a and sandwiches the central portion 80a in the y direction are formed.
The side portion 80b and the leaf spring 100 are separated from the central portion 80a and cover the side surface of the central portion 80a, and a recess 81 is formed in the space between the side portion 80b and the leaf spring 100 and the central portion 80a. Will be done.
The protrusion 30a of the outer conductor 30 is fitted into the recess 81 at the time of joining.

The conductive receiving pin 90 is made of a conductive member and has a cylindrical shape extending in the x direction.
The front of the conductive receiving pin 90 in the x direction protrudes from the housing 80.
The tip of the conductive receiving pin 90 rearward in the x direction has a planar shape portion parallel to the yz plane, and the side surface rearward in the x direction is covered with the central portion 80a of the housing 80.

The leaf spring 100 is made of a conductive member and has a plate surface perpendicular to the z direction.
The leaf spring 100 is located away from the central portion 80a of the housing 80.
The leaf spring 100 is urged so that the rear parts in the x direction approach each other.
A contact portion (recess) 101 recessed inward in the z direction is provided in a region of the plate surface that is rearward in the x direction and faces a part of the groove portion 31 of the outer conductor 30 at the time of joining.
The form in which two leaf springs 100 are provided in a positional relationship in which the conductive receiving pins 90 are sandwiched in the z direction will be described, but only one may be provided, or three or more leaf springs 100 may be provided. Good.

The conductive receiving pin 90 is used as a terminal (a terminal electrically connected to the spring connector 10) corresponding to the first pole cable 51 in the receiving side connector portion 1b.
The leaf spring 100 is used as a terminal (a terminal electrically connected to the outer conductor 30) corresponding to the second pole cable 52 in the receiving side connector portion 1b.

Next, joining by fitting the cable-side connector portion 1a and the receiving-side connector portion 1b will be described.

Prior to fitting, the tip of the conductive contact pin 11 projects forward in the x direction from the conductive tube 12.

When the protruding portion 30a of the outer conductor 30 is fitted into the recess 81, the tip portion of the conductive contact pin 11 is pushed rearward in the x direction by the planar shape portion of the tip portion behind the conductive receiving pin 90 in the x direction, and the plane is said. The tip portion is housed in the conductive tube 12 in a state where the shape portion and the tip portion are in contact with each other.
Further, the rear portion of the leaf spring 100 in the x direction comes into contact with the protruding portion 30a of the outer conductor 30 so as to sandwich it in the z direction, and the contact portion 101 engages with the groove portion 31.
The urging force of the leaf spring 100 and the engagement between the contact portion 101 and the groove portion 31 make it difficult for the cable-side connector portion 1a and the receiving-side connector portion 1b to come off, and the joining is completed.

At this time, since the coil spring 13 is contracted in the x direction, it repels so as to extend forward in the x direction.
The urging force of the coil spring 13 is dispersed by the inclined surface 11a of the conductive contact pin 11 into a force forward in the x direction (force in the axial direction) and a force upward in the z direction (force in the radial direction).
The force forward in the x direction applies a force to move the conductive contact pin 11 forward in the x direction, and the conductive contact pin 11 is kept in contact with the conductive receiving pin 90.
The force applied upward in the z direction is applied so that the conductive contact pin 11 moves upward in the z direction, and the rear end portion of the conductive contact pin 11 and the like are kept in contact with the conductive tube 12. Is done.

As a result, the conductive receiving pin 90 can be electrically connected to the first pole cable 51 via the conductive contact pin 11, the conductive tube 12, and the coil spring 13.

Further, the leaf spring 100 is in a state where it can be electrically connected to the second pole cable 52 via the outer conductor 30.

Since the groove 31 in the outer conductor 30 is provided over the entire circumference of the side surface of the protruding portion 30a, the cable-side connector portion 1a and the receiving-side connector portion 1b are joined in a positional relationship in which the leaf springs 100 face each other in the z direction. Not limited to the form, the outer conductor 30 and the leaf spring 100 can be electrically contacted in a form in which the joining is performed in a positional relationship facing each other in another direction (for example, the y direction).

That is, in order to join the cable-side connector portion 1a and the receiving-side connector portion 1b and establish an electrical connection, it is necessary to perform alignment such that at least one of them is rotated about an axis parallel to the x direction. Instead, it is only necessary to fit the protruding portion 30a of the outer conductor 30 and the central portion 80a of the housing 80.
Therefore, if the two-pole connector assembly 1 in the present embodiment is used, accurate connection between the terminals can be easily performed.

Further, since the spring connector 10 is used for the electrical connection with the cable 50 (first pole cable 51) on the side passing through the central portion, even the positional relationship in which the spring connector 10 and the conductive receiving pin 90 can be contacted can be secured. For example, since both can be electrically connected, the terminals are maintained in a stronger state than the form in which the spring connector 10 is not used (for example, the male terminal and the female terminal are fitted together). It becomes possible to reduce the outer diameter of the portion.
If the outer diameter of the terminal part can be reduced, there is an advantage that the degree of freedom in connector design is increased.

In the present embodiment, the form in which the spring connector 10 is provided on the cable-side connector portion 1a and the conductive receiving pin 90 is provided on the receiving-side connector portion 1b has been described, but the conductive receiving pin 90 is provided on the cable-side connector portion 1a. The spring connector 10 may be provided on the receiving side connector portion 1b.

1 2-pole connector assembly 1a Cable side connector part (1st connector part)
1b Receiving side connector part (second connector part)
10 Spring connector 11 Conductive contact pin 11a Inclined surface 12 Conductive tube 13 Coil spring (elastic member)
20 Insulator sleeve 30 External conductor 30a Protruding part 30b Holding part 31 Groove part 40 C ring 50 Cable 51 1st pole cable 52 2nd pole cable 60 Inner mold 70 Overmold 80 Housing 80a Central part 80b Side part 81 Recessed part 90 Conductive receiving pin 100 leaf spring (conductor receiving member)
101 Contact part (dent)

Claims (7)

A first connector portion having a spring connector and an outer conductor having a hollow cylindrical shape that covers the side surface of the spring connector in a non-contact manner.
A conductive receiving pin that pushes the tip of the spring connector at the time of joining to the first connector portion, a housing including a central portion that covers the side surface of the conductive receiving pin, and a side surface of the central portion that is held by the housing. A second connector portion having a central portion and a conductor receiving member located apart from the central portion is provided.
A two-pole connector assembly characterized in that a part of the outer conductor is fitted between the central portion and the conductor receiving member at the time of joining, and the spring connector and the conductive receiving pin come into contact with each other. The conductor receiving member is composed of two leaf springs.
A groove is provided on the side surface of the outer conductor over the entire circumference.
The two leaf springs are arranged in a positional relationship so as to sandwich the central portion.
The two-pole connector assembly according to claim 1, wherein a recess is formed in a region of the two leaf springs that is in a positional relationship facing a part of the groove at the time of joining. The housing is provided with side portions that are separated from the central portion and arranged in a positional relationship that sandwiches the central portion.
The side portion and the leaf spring are separated from the central portion and are in a positional relationship of covering the side surface of the central portion.
The two-pole connector assembly according to claim 2, wherein a part of the outer conductor is fitted between the side portion and the central portion and between the leaf spring and the central portion at the time of the joining. .. Claims 1 to 3 are characterized in that the spring connector and the hollow cylindrical shape forming a region of the outer conductor covering the side surface of the tip end portion of the spring connector are in a positional relationship in which the central axes coincide with each other. The 2-pole connector assembly described in any of. The spring connector includes a conductive contact pin, a conductive tube, and an elastic member.
The region of the conductive contact pin in contact with the elastic member has an inclined surface inclined with respect to a plane perpendicular to the direction in which the conductive contact pin and the elastic member are arranged.
The two-pole connector assembly according to any one of claims 1 to 4, wherein at least the inclined surface of the conductive contact pin and the elastic member are housed in the conductive tube. The conductive tube is electrically connected to the first pole cable included in the cable.
The two-pole connector assembly according to claim 5, wherein the outer conductor is electrically connected to a second-pole cable included in the cable. With spring connector
A first connector portion in a two-pole connector assembly including an outer conductor having a hollow cylindrical shape that covers the side surface of the spring connector in a non-contact manner.
At the time of joining the first connector portion and the second connector portion, the outer conductor is placed between the conductive receiving member located apart from the central portion covering the side surface of the conductive receiving pin in the second connector portion and the central portion. A first connector portion, characterized in that a part of the connector is fitted, the spring connector is pushed by the conductive receiving pin, and the spring connector and the conductive receiving pin come into contact with each other.

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