JP2008103271A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts, facilitate assembly, and have a shield function and a ground function.
SOLUTION: A first shell 2 that covers a housing 3 that holds a contact 4 includes first contact portions 20, 21, and 22 that come into contact with a housing 81, a first terminal portion 26 that is connected to a connection object 64, and An additional contact portion 128 connected to the second shell 5 covering the first shell 2, and the second shell 5 includes a flange portion 56 having a fixing portion 56 a fixed to the housing 81, and the housing The second contact portions 50, 51, 52, 53 that come into contact with 81, and the second terminal portion 58 connected to the connection object 64 are included.
[Selection] Figure 1

Description

  The present invention relates to a connector that shields a first shell and a second shell.

  Prior art 1 includes a first housing that is an insulator, an outer shield case that covers the first housing, a second housing that is an insulator in contact with the inner surface of the first housing, and an inner surface of the second housing. A socket including an inner shield case to be fixed is known (for example, see Patent Document 1).

  As prior art 2, there is known a connector including an inner housing that holds contacts, an outer housing, an inner shell that covers the inner housing, and an outer shell that covers the outer housing.

  The inner shell includes a first shell and a second shell, and the first shell and the second shell are opposed to each other so as to sandwich the inner housing, and cover the inner housing. Engage and connect (see, for example, Patent Document 2).

Japanese Patent No. 3308731 JP 2005-38725 A

  Since the socket of patent document 1 is comprised so that a 1st housing may be latched to a frame part, since a 1st housing is required, while attaching a 1st housing while a number of parts and an assembly man-hour increase. Therefore, there is a problem in that the structure of the frame portion for this is also complicated.

  The connector of Patent Document 2 is composed of a first shell, an inner housing, a second shell, an outer shell, and an outer housing. Since the outer shell is fixed to the housing, the number of parts and the number of assembly steps are reduced. There are many problems that the configuration is complicated.

  Therefore, an object of the present invention is to provide a connector that can reduce the number of parts and the number of assembly steps, can be easily assembled, and can further enhance the ground function and the shield function.

  The present invention provides a connector for connecting a connection object and a mating connector, and includes a contact, a housing that holds the contact, a first shell that covers the housing, and a second shell that covers the first shell. The first shell includes at least one of a first contact portion that contacts the housing and a flange portion including a fixing portion that is fixed to the housing, and a first terminal portion that is connected to the connection object. The main feature is a connector characterized by having.

  According to the invention, the first elastic contact portion of the first shell that comes into contact with the housing, the additional elastic contact portion that connects to the second shell, and the second elastic contact portion of the second shell that comes into contact with the housing. Therefore, the number of parts and the number of assembly steps can be reduced, the assembly is easy, and the connector can be strengthened with the ground function and the shield function.

  The connector according to the present invention includes a contact, a housing for holding the contact, a first shell for covering the housing, and a second shell for covering the first shell in the connector for connecting the connection object and the mating connector. The first shell includes at least one of a first contact portion that contacts the housing and a flange portion that includes a fixing portion that is fixed to the housing, and a first terminal portion that is connected to the connection object. It was realized by having.

  1 to 3 show a first embodiment of a connector according to the present invention. 1 to 3, the connector 1 includes a conductive first shell 2, an insulating housing 3 covered by the first shell 2, and a conductive contact held by the housing 3. 4 and a conductive second shell 5 covering the housing 3 and the first shell 2.

  The first shell 2 connects the first bottom plate portion 2a, the first top plate portion 2b facing in parallel with the first bottom plate portion 2a, and the first bottom plate portion 2a and the first top plate portion 2b. The first fitting portion 25 having a substantially rectangular tube shape is formed by a pair of first side plate portions 2c and 2d that are parallel to each other.

  Each of the pair of first side plate portions 2c, 2d is bent outward at a substantially right angle with respect to the plate surface of the first side plate portions 2c, 2d from the end on the fitting side with the mating connector. First horizontal plate contact portions (first contact portions) 20 and 21 are formed. The first bottom plate portion 2a includes a first vertical plate contact portion (first contact) that is bent substantially perpendicularly to the plate surface of the first bottom plate portion 2a from the end on the fitting side with the mating connector. Part) 22 is formed. Accordingly, the first horizontal plate contact portions 20, 21 and the first vertical plate contact portion 22 of the first shell 2 extend outward and in three directions of the first fitting portion 25.

  At the free ends of the first horizontal plate contact portions 20, 21, first horizontal plate contact portions 20a, 21a that are bent in an approximately arc shape and outward are formed. Further, the first horizontal plate contact portions 20 and 21 are formed with horizontal slits 20b and 21b in the horizontal direction from the free end. The first horizontal plate contact portions 20 and 21 are connected to the first side plate portions 2c and 2d at one end, and are displaced in the second direction B opposite to the first direction A and the first direction A. It has elasticity. The horizontal slits 20b and 21b are formed so that the first horizontal plate contact portions 20 and 21 are easily displaced in the first direction A and the second direction B.

  At the free end of the first vertical plate contact portion 22, a first vertical plate contact portion 22a that is bent in an approximately arc shape and outward is formed. In the first vertical plate contact portion 22a, a plurality of vertical slits 22b are formed in the vertical direction from the free end. One end of the first vertical plate contact portion 22 is connected to the first bottom plate portion 2a, and has elasticity so as to be displaced in the first direction A and the second direction B. The vertical slit 22b is formed so that the first vertical plate contact portion 22 is easily displaced in the first direction A and the second direction B.

  Each of the pair of first side plate portions 2c, 2d has a first side plate contact portion whose mating side with the mating connector is connected to the first side plate portions 2c, 2d and has a free end opposite to the mating side. (Elastic contact portions) 23 and 24 are formed. The first side plate contact portions 23 and 24 can be formed by cutting out the first side plate portions 2c and 2d in a substantially U shape. First side plate contact portions 23a and 24a are formed at the free ends of the first side plate contact portions 23 and 24. The first side plate contact portions 23a and 24a are bent so as to be curved inward from the inner surfaces of the first side plate portions 2c and 2d. . The first bottom plate portion 2a is formed with a first terminal portion 26 that is bent at a substantially right angle with respect to the first bottom plate portion 2a from the end opposite to the fitting side with the mating connector.

  The first top plate portion 2b and the first side plate portions 2c and 2d extend rearward in the second direction B from the first bottom plate portion 2a. The end of the first side plate portion 2c, 2d opposite to the fitting side has an extended portion 2f extending downward from the first bottom plate portion 2a. 1 to 3, the extension portion 2f of one first side plate portion 2d is shown, but the other first side plate portion 2c also has an extension portion 2f.

  The first shell 2 is formed by punching the conductive plate into a predetermined shape by pressing, and then the first side plate portions 2c, 2d, the first horizontal plate contact portions 20, 21, the first vertical plate contact portion 22, the first terminal portion 26, After bending each of the first side plate contact portions 23 and 24, the first side plate contact portions 23 and 24 are manufactured by bending so that the mating portions 2e of the one side of the first top plate portion 2b shown in FIGS. be able to.

  The housing 3 has a substantially rectangular housing body 31 and a plate-like fitting portion 32 extending in the first direction A from the fitting surface 31a on the fitting side with the mating connector of the housing body 31. is doing.

  The housing main body 31 is formed with an end surface 31b positioned below the fitting surface 31a on the second direction B side below the fitting surface 31a where the fitting portion 32 is located and extends. The fitting surface 31a and the end surface 31b are parallel to each other. When the housing main body 31 is viewed from the side surface in FIG. 2, it has a substantially inverted L shape.

  Further, the housing body 31 is formed with a through hole 35 penetrating from the rear surface 31c opposite to the fitting side to the fitting surface 31a. The through hole 35 has a surface that is common to the bottom surface of the groove portion 32 a formed in the shape of a strip that is long in the first direction A from the fitting surface 31 a on the upper surface of the fitting portion 32.

  The contact 4 includes a holding portion 41 held by the housing body 31 of the housing 3, a contact portion 42 extending from the holding portion 41 in the first direction A, and a holding portion 41 extending from the holding portion 41 toward the second direction B. And a terminal portion 43 bent at a substantially right angle with respect to the portion 41.

  The holding portion 41 and the contact portion 42 of the contact 4 are inserted into the through hole 35 of the housing 3, and the contact portion 42 is positioned in the groove portion 32 a formed on the upper surface of the fitting portion 32 of the housing 3. At this time, the holding portion 41 is formed wider than the contact portion 42 in the width direction orthogonal to the first direction A, so that the holding portion 41 is held in the housing 3 by being press-fitted into the inner surface of the through hole 35.

  The housing 3 holding the contacts 4 is inserted into the fitting portion 25 of the first shell 2 from the side opposite to the fitting side with the mating connector, with the fitting portion 32 as the front. At this time, the housing 3 is inserted into the fitting portion 25 of the first shell 2 until an end surface 31b parallel to the fitting surface 31a of the housing 3 contacts the end of the first bottom plate portion 2a.

  The second shell 5 is a fitting between the second top plate portion 5b, a pair of parallel second side plate portions 5c and 5d connected to both sides of the second top plate portion 5b, and the second top plate portion 5b. The second rear plate portion 5e is connected to the opposite end to the side and is bent so as to be orthogonal to the plate surface of the second top plate portion 5b.

  One second side plate portion 5c has a pair of second lateral plate contacts that are bent outward at a substantially right angle with respect to the plate surface of the second side plate portion 5c from the end on the fitting side with the mating connector. Pair (second contact portion) 50, 51 and a pair of second lateral plate contact portions 50, 51 in the vicinity of the pair and projecting in the first direction A from the fitting side end of the second side plate portion 5c. Protrusions 50a and 51a are formed.

  The other second side plate portion 5d has a pair of second horizontal plate contacts that are bent outward at a substantially right angle with respect to the plate surface of the second side plate portion 5d from the end on the fitting side with the mating connector. Pair (second contact portion) 52, 53 and a pair of second lateral plate contact portions 52, 53 in the vicinity of the pair of second side plate portions 5d and protruding in the first direction A. Protrusions 52a and 53a are formed. The second horizontal plate contact portions 50, 51, 52, 53 have an elastic force so that they can be displaced in the first direction A and the second direction B.

  The second top plate portion 5b includes a flange portion 56 that is bent from the end on the fitting side with the mating connector to the plate surface of the second top plate portion 5b at an approximately right angle and upward. And an engaging portion 57 located in the vicinity of. The flange portion 56 has a screw hole (fixed portion) 56a. The engaging portion 57 is connected to the second top plate portion 5b by notching the second top plate portion 5b, and the free end portion of the engaging portion 57 extends in the second direction B. And it protrudes to the inside of the 2nd top plate part 5b.

  The second rear plate portion 5e is bent at a substantially right angle from the end opposite to the fitting side of the second top plate portion 5b and extends downward, and the second side plate portion 5c on the opposite end to the fitting side. Located between 5d. A second terminal portion 58 extends at the lower end of the second rear plate portion 5e. The second rear plate portion 5e in the vicinity of the second terminal portion 58 is bent toward the notch portion 5f formed by notching the lower corners of the second side plate portions 5c and 5d, and further the notch portion. A holding piece 59 bent in a direction parallel to the second top plate portion 5b through 5f is formed. A part of the holding piece 59 parallel to the second top plate portion 5b is in contact with at least one of the extension portion 2f of the second shell 2 and the bottom portion 31f of the housing main body 31, and the inside of the extension portion 2f and the bottom portion 31f. The receiving portion 59a is configured to receive at least one of them.

  The second shell 5 is formed by punching the conductive plate into a predetermined shape by pressing, and then second side plate portions 5c and 5d, second lateral plate contact portions 50, 51, 52, and 53, second rear plate portion 5e, and holding pieces 59. Each of the engaging portions 57 can be manufactured by bending.

  The first shell 2 holding the housing 3 is covered and held by the second shell 5. A pair of protrusions 52a formed between the pair of protrusions 50a and 51a formed on one second side plate part 5c of the second shell 5 and the other second side plate part 5d of the second shell 5. The base portions of the first horizontal plate contact portions 20 and 21 of the first shell 2 are sandwiched between the first shell 2 and the first shell 2 and the second shell 5, respectively.

  Accordingly, each of the second horizontal plate contact portions 50, 51, 52, 53 is located outside the pair of protrusions 50a, 51a and the pair of protrusions 52a, 53a, and is parallel to the second top plate portion 5b. The receiving portion 59a of the holding piece 59 is brought into contact with the extended portion 2f of the first shell 2 so that the second shell 2 is positioned without inclination.

  Further, in a state where the first shell 2 and the second shell 5 are combined, between the outer surface of the first top plate portion 2 b of the first shell 2 and the inner surface of the second top plate portion 5 b of the second shell 5. A large fitting accommodating portion 61 is formed. The assembled connector 1 has a shielding function in signal transmission / reception by the contact 4 by the first shell 2 and the second shell 5.

  In addition, the structure of the 1st shell 2 is not cylindrical at the fitting side with the connector, and there is a gap between the second side plate portions 5c and 5d of the second shell 5 and the second rear plate portion 5e. There is.

  Therefore, in order to reliably shield the periphery of the signal line and further enhance the shielding function, a separate part for covering the portion of the first shell 2 that is not fitted with the connector on the fitting side with the connector is added, or the second Another component that covers the gap may be added between the second side plate portions 5c and 5d of the two shells 5 and the second rear plate portion 5e. By adding another component in this manner, the signal line can be made pseudo-coaxial.

  FIG. 4 shows a state where the connector 1 shown in FIG. FIG. 5 shows a state in which the housing 81 on which the connector 1 shown in FIG. 4 is mounted is viewed from the back.

  With reference to FIG.4 and FIG.5, the connector 1 is mounted on the mounting surface of the board | substrate 64 as a connection target object. The substrate 64 is installed inside the housing 81. The terminal portion 43 of the contact 4 of the connector 1 is connected to a signal circuit provided on the surface opposite to the mounting surface of the substrate 64 by solder through an insertion hole (not shown) formed in the substrate 64. . The first terminal portion 26 of the first shell 2 and the second terminal portion 58 of the second shell 5 are provided on a surface opposite to the mounting surface of the substrate 64 through an insertion hole formed in the substrate 64. It is connected to the.

  The first horizontal plate contact portions 20a and 21a of the first horizontal plate contact portions 20 and 21 of the first shell 2 are applied to the inner surface of the vertical wall 81a of the casing 81 by the elastic force of the first horizontal plate contact portions 20 and 21. It is in contact. An insertion hole 81b for insertion into the screw hole 56a of the flange portion 56 and a window portion 81c for inserting a mating connector (to be described later) into the fitting portion 25 and the fitting accommodating portion 61 and fitting the vertical wall 81a. And are formed.

  The first vertical plate contact portion 22 a of the first vertical plate contact portion 22 in the first shell 2 is in contact with the inner surface of the vertical wall 81 a of the housing 81 by the elastic force of the first vertical plate contact portion 22. The flange portion 56 of the second shell 5 is fixed by a screw (not shown) through the screw hole 56a, the vertical wall 81a of the housing 81, and the screw hole 56a.

  The second horizontal plate contact portions 50, 51, 52, 53 of the second shell 5 are brought into contact with the vertical wall 81a of the casing 81 by fixing the screw holes 56a and the vertical wall 81a of the casing 81 with screws. ing. Accordingly, the casing 81, the first and second shells 2, 5 and the ground circuit of the substrate 64 are grounded.

  FIG. 6 shows a state before the connector 1 and the mating connector 101 are fitted together. Referring to FIG. 6, the mating connector 101 includes a first mating housing 160, a mating shell 171 held by the first mating housing 160, and a second mating housing 172 covered by the mating shell 171. is doing.

  In addition, in FIG. 6, in order to make the fitting accommodating part 61 easy to understand, a part of the fitting side of the second top plate part 5b of the second shell 5 is removed.

  The first mating housing 160 includes a first mating housing portion 162 extending in the second direction B from the end surface on the mating side of the first mating housing main body 162 and the connector of the first mating housing main body 162, A lock arm 164 is connected to the upper surface of the mating side end of the first mating fitting portion 163 and extends in the first direction A so as to face the upper surface of the first mating housing main body 162.

  A lock portion 165 protruding from the upper surface is formed on the upper surface of the lock arm 164. The mating shell 171 covers the second mating housing 172. The mating shell 171 covering the second mating housing 172 is held by the first mating housing main body 162, and the portion on the mating side with the connector is positioned on the lower surface of the first mating fitting portion 163 with a gap. Yes.

  A coaxial cable 181 is connected to the second mating housing 172. The cable 181 has a ground line connected to the mating shell 171 and a signal line connected to a mating contact (not shown) provided inside the mating housing 172.

  FIG. 8 shows a state where the connector 1 and the mating connector 101 are fitted. Referring also to FIGS. 6 to 8, when the mating connector 101 is moved and fitted in the second direction B to the connector 1, the shell fitting of the first shell 2 is performed as shown in FIG. 7. The mating portion of the mating shell 171 covering the second mating housing 172 is fitted into the portion 25.

  When the first shell 2 and the mating shell 171 are fitted, the contact portion 42 of the contact 4 and the mating contact provided in the second mating housing 172 come into contact with each other so that signals can be transmitted and received. Become. Further, the first side plate contact portions 23, 24 formed on the first side plate portions 2c, 2d of the first shell 2 and the outer surface of the mating shell 171 come into contact with each other, whereby the first shell 2 and the mating shell 171 are brought into contact with each other. Connect to ground.

  Further, when the first shell 2 and the mating shell 171 are fitted, the first mating fitting portion 163 enters the fitting accommodating portion 61 between the first shell 2 and the second shell 5, and the lock arm 164 The lock portion 165 moves while pressing the engaging portion 57 of the second shell 5 toward the second top plate portion 5b. Then, as shown in FIG. 8, when the lock portion 165 exceeds the engagement portion 57, the lock portion 165 engages with the engagement portion 57, and the connector 1 and the mating connector 101 are engaged, The movement in the first direction A where the mating connector 101 is pulled out from the connector 1 is prevented. In addition, by adding a metal piece to the lock portion 165, it is possible to prevent the lock portion 165 from being worn by the engaging portion 57.

  In order to release the lock portion 165 from the engagement portion 57 in the fitted state of the connector 1 and the mating connector 101 shown in FIG. 8, the upper surface 164a of the lock arm 164 on the first direction A side is set to the first By pressing the upper surface of the mating housing 160 in the downward direction C, the lock portion 165 moves in the upper surface direction of the first mating fitting portion 172, so that the lock portion 165 is released from the engaging portion 57 and the lock is released. At this time, the mating connector 101 can be removed from the connector 1 by being pulled out in the first direction A.

  FIG. 9 shows a modification of the connector 1. In a modified example of the connector 1, a first top plate contact portion (additional contact) extending obliquely upward on the first direction A side from the end in the second direction B of the first top plate portion 2 b of the first shell 2. Part) 128 is formed. Note that other configurations of the connector 1 are the same as those of the connector 1 shown in FIG.

  Since the free end portion of the first top plate contact portion 128 contacts the inner surface of the second top plate portion 5b of the second shell 5 with an elastic force, the ground connection between the first shell 2 and the second shell 5 is further ensured. Can be performed.

  The connector of the present invention is mounted on a printed wiring board and can be applied to a use as a shield type connector having a shield function.

It is a perspective view which shows Example 1 of the connector which concerns on this invention. It is a longitudinal cross-sectional view of the connector shown in FIG. It is the perspective view which decomposed | disassembled and showed the connector shown in FIG. It is a perspective view which shows the state which attached the connector shown in FIG. 1 to the housing | casing. It is a perspective view which shows the state which looked at the connector and housing | casing shown in FIG. 4 from the back. It is the perspective view which showed the state before fitting of the connector shown in FIG. 1, and a mating connector, and showed a part of 2nd shell in cross section. It is the perspective view which showed the state which the 1st shell of the connector shown in FIG. 1 and the other party shell of the other party connector fitted. It is a perspective view which shows the state at the time of fitting with the connector shown in FIG. 4, and the other party connector. It is a longitudinal cross-sectional view which shows the modification of the connector shown in FIG.

Explanation of symbols

1 Connector 2 First Shell 2a First Bottom Plate 2b First Top Plate
2c, 2d First side plate portion 2f Extension portion 3 Housing 4 Contact 5 Second shell 5b Second top plate portion 5c, 5d Second side plate portion 5e Second rear plate portion 5f Notch portion 20, 21 First horizontal plate contact portion 20a, 21a First horizontal plate contact portion 22 First vertical plate contact portion 22a First vertical plate contact portion 23, 24 First side plate contact portion 23a, 24a First side plate contact portion 25 First fitting portion 26 First 1 terminal
31 Housing body 31a Mating surface
31b End face 31c Rear face
32 Fitting part
32a Groove part 35 Through hole 41 Holding part 42 Contact part 43 Terminal part 50, 51, 52, 53 Second horizontal plate contact part 50a, 51a, 52a, 53a Projection part 56 Flange part 56a Screw hole (fixing part)
57 engaging part
58 Second terminal part 59 Holding piece 59a Receiving part
61 Fitting receiving part 64 Substrate 81a Side wall 101 Mating connector 128 First top plate contact part (additional contact part)
160 first mating housing 171 mating shell 172 second mating housing 162 first mating housing body 163 first mating fitting portion 164 lock arm 165 locking portion 181 cable A first direction B second direction

Claims (5)

In the connector that connects the connection object and the mating connector,
A contact, a housing holding the contact, a first shell covering the housing, and a second shell covering the first shell;
The first shell has at least one of a first contact portion that contacts the housing and a flange portion including a fixing portion that is fixed to the housing, and a first terminal portion that is connected to the connection object. A connector characterized by that.   The second shell includes at least one of a flange portion having a fixing portion for fixing to the housing, a second contact portion in contact with the housing, and a second terminal portion connected to the connection object. The connector according to claim 1, further comprising:   The connector according to claim 1, wherein the first shell has an additional contact portion connected to the second shell.   4. The connector according to claim 1, wherein the first shell or the second shell is composed of two or more parts.   4. The connector according to claim 1, wherein the second shell has an engaging portion, and the mating connector has a lock arm that locks by being engaged with the engaging portion. 5.

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