JP6092709B2 - Mating detection connector - Google Patents

Description

  The present invention relates to a fitting detection connector.

  Conventionally, as a fitting detection connector, a movable metal fitting as a terminal provided with a sliding portion as a pair of contact portions, a female connector housing as a first housing that accommodates the movable fitting, and the female connector A male connector housing as a second housing that can be fitted to the housing, and a pair of sliding portions that are accommodated in the male connector housing and are normally fitted to the female connector housing and the male connector housing. There is known one provided with a pair of standby metal fittings each provided with a connection surface (see, for example, Patent Document 1).

  In this fitting detection connector, the female connector housing and the male connector housing are fitted together, and the female connector housing and the male connector are brought into contact with each other by contact between the pair of sliding portions of the movable metal fitting and the connection surface of the pair of standby metal fittings. A normal fitting state with the housing can be detected.

  In the fitting detection connector disclosed in Patent Document 1, the movable fitting is moved across the connection surface of the pair of standby fittings at the normal fitting position between the female connector housing and the male connector housing, thereby making a pair of slides. The moving part is slid on the connection surface of the pair of standby fittings.

  By sliding between the pair of sliding portions and the connection surfaces of the pair of standby metal fittings, dust attached to the surfaces of the pair of sliding portions and oxide films formed on the surfaces are removed. This prevents poor conduction.

JP-A-8-22873

  However, in the fitting detection connector as in Patent Document 1, since the pair of contact portions are slid with respect to the contacted portions of the pair of mating terminals, the housings are not in a properly fitted state. Even in this case, a pair of mating terminals are conducted through the terminals.

  For this reason, it is possible to remove impurities such as dust adhering to the surface of the pair of contact parts and oxide film formed on the surface to prevent poor conduction between the terminal and the mating terminal, but the fitting state between the housings Could not be detected accurately.

  Accordingly, an object of the present invention is to provide a fitting detection connector that can prevent poor conduction between a terminal and a mating terminal and can improve the detectability of a fitting state between housings.

  According to the first aspect of the present invention, a terminal provided with a pair of contact portions, a first housing that accommodates the terminal, a second housing that can be fitted to the first housing, and a housing that is accommodated in the second housing. A fitting detection connector comprising a pair of mating terminals each provided with a contacted portion that comes into contact with the pair of contact portions in a properly fitted state between the first housing and the second housing, One of the contacted parts of the pair of mating terminals is fitted with the first housing and the second housing before the contacted parts of the pair of mating terminals are brought into contact with the pair of contact parts. A sliding portion that slides with the pair of contact portions is provided.

  In this fitting detection connector, the first housing and the second housing are fitted before the contacted portion of the pair of mating terminals is brought into contact with one of the contacted portions of the pair of mating terminals. Therefore, even if the sliding part slides with the pair of contact parts, the pair of mating terminals are not conducted through the terminals.

  For this reason, before a 1st housing and a 2nd housing will be in a regular fitting state, removing impurities, such as a dust adhering to the surface of a pair of contact part, and an oxide film formed on the surface, by a sliding part Can do.

  Therefore, in such a fitting detection connector, poor conduction between the terminal and the mating terminal can be prevented, and the detectability of the fitting state between the housings can be improved.

  The invention according to claim 2 is the fitting detection connector according to claim 1, wherein the contacted portions of the pair of mating terminals are perpendicular to the fitting direction of the first housing and the second housing. The sliding portion is positioned in front of the contacted portion of the other mating terminal in the fitting direction of the first housing and the second housing.

  In this fitting detection connector, since the sliding portion is positioned on the front side in the fitting direction of the first housing and the second housing from the contacted portion of the other counterpart terminal, the pair of counterpart terminals can be configured with a simple structure. Before the contacted portion comes into contact with the pair of contact portions, the pair of contact portions and the sliding portion can be reliably slid.

  The invention according to claim 3 is the fitting detection connector according to claim 1 or 2, wherein the pair of contact portions is provided on the terminal, and the pair of contact portions are biased by the pair of contact terminals. An elastic piece to be brought into contact with the contacted portion of the first housing and the second housing until at least one of the first housing and the second housing is in a properly fitted state. Further, a displacement portion is provided for displacing the elastic piece against the urging force of the elastic piece.

  In this fitting detection connector, the elastic piece resists the urging force of the elastic piece until the first housing and the second housing are properly fitted to at least one of the first housing and the second housing. Since the displacement portion is provided to displace the pair of contact portions and the contacted portions of the pair of mating terminals due to the displacement of the elastic piece by the displacement portion in the half-fitted state of the first housing and the second housing. The half-fitted state between the first housing and the second housing can be reliably detected without contact.

  ADVANTAGE OF THE INVENTION According to this invention, there exists an effect that the conduction | electrical_connection defect of a terminal and a counterpart terminal can be prevented, and the fitting detection connector which can improve the detectability of the fitting state of housings can be provided.

It is a perspective view of the fitting detection connector which concerns on embodiment of this invention. It is sectional drawing of the 1st housing of the fitting detection connector which concerns on embodiment of this invention. (A) is sectional drawing of the 2nd housing of the fitting detection connector which concerns on embodiment of this invention. (B) is a principal part enlarged view of Fig.3 (a). (A) is sectional drawing in the fitting start of the 1st housing and 2nd housing of the fitting detection connector which concerns on embodiment of this invention. (B) is the principal part enlarged view of Fig.4 (a). It is sectional drawing in the middle of fitting with the 1st housing and 2nd housing of the fitting detection connector which concerns on embodiment of this invention. (A) is sectional drawing in the completion of the fitting of the 1st housing and the 2nd housing of the fitting detection connector which concerns on embodiment of this invention. (B) is a principal part enlarged view of Fig.6 (a).

  The fitting detection connector which concerns on embodiment of this invention is demonstrated using FIGS.

  The fitting detection connector 1 according to the present embodiment can be fitted into the terminal 5 provided with a pair of contact portions 3, 3, a first housing 7 that accommodates the terminal 5, and the first housing 7. A second housing 9 and contacted portions 11 and 11 that are accommodated in the second housing 9 and are brought into contact with the pair of contact portions 3 and 3 when the first housing 7 and the second housing 9 are properly fitted are provided. A pair of mating terminals 13 and 13 are provided.

  The contacted portion 11 of one of the counterpart terminals 13 is connected to the first housing 7 and the first housing 7 before the contacted portions 11 and 11 of the pair of counterpart terminals 13 and 13 are brought into contact with the pair of contact portions 3 and 3. 2 A sliding portion 15 that slides with the pair of contact portions 3 and 3 by fitting with the housing 9 is provided.

  Further, the contacted portions 11 and 11 of the pair of mating terminals 13 and 13 are arranged in parallel in a direction orthogonal to the fitting direction of the first housing 7 and the second housing 9, and the sliding portion 15 The contact portion 11 of the mating terminal 13 is positioned on the front side in the fitting direction of the first housing 7 and the second housing 9.

  Further, the terminal 5 is provided with a pair of contact portions 3, 3, and an elastic piece 17 is provided for bringing the pair of contact portions 3, 3 into contact with the contacted portions 11, 11 of the pair of mating terminals 13, 13 by biasing force. The first housing 7 has a displacement portion 19 for displacing the elastic piece 17 against the urging force of the elastic piece 17 until the first housing 7 and the second housing 9 are in the normal fitting state. Is provided.

  As shown in FIGS. 1 to 6, the terminal 5 is formed by punching and bending a thin plate-like conductive material, whereby the elastic piece 17 and the pair of contact portions 3 and 3 are formed on the base portion 21. Is provided. The terminal 5 is preferably a short-circuit terminal that connects two conductors.

  The elastic piece 17 is formed of one member continuous with the base portion 21 by bending one end side of the base portion 21 and is provided so as to be elastically deformable with a predetermined urging force. A pair of contact portions 3 and 3 are provided at the tip of the elastic piece 17.

  The pair of contact portions 3, 3 are bent and formed in a semicircular shape at the distal end portion of the elastic piece 17, and are arranged in parallel in the width direction of the distal end portion of the elastic piece 17. The pair of contact portions 3 and 3 are brought into contact with the contacted portions 11 and 11 of the pair of mating terminals 13 and 13 accommodated in the second housing 9 by the urging force of the elastic piece 17, and the terminal 5 and the pair of mating terminals 13 and 13 are electrically connected.

  In such a terminal 5, the base portion 21 is inserted into an insertion groove 25 provided in the lock portion 23 of the first housing 7 and supported by the lock portion 23, and the elastic piece 17 and the pair of contact portions 3 and 3 are connected to each other. One housing 7 is housed in the housing chamber 27.

  The first housing 7 is made of an insulating material such as synthetic resin, is formed in a casing shape, and includes a storage chamber 27 and a lock portion 23. The accommodation chamber 27 is provided at the center in the width direction on the upper side in the height direction inside the first housing 7, and the elastic piece 17 of the terminal 5 and the pair of contact portions 3 and 3 are accommodated and disposed. In addition, a rib 29 that supports the contacted portions 11 and 11 of the pair of mating terminals 13 and 13 accommodated in the second housing 9 is inserted into the wall portion of the accommodating chamber 27 that is located on the proximal end side of the lock portion 23. A possible opening 31 is provided. A lock portion 23 is provided above the storage chamber 27.

  A plurality of terminals in which a plurality of female terminals 35 connected to the ends of the electric wires 33 connected to a power source or equipment are accommodated and arranged on the lower side in the height direction and both sides in the width direction of the accommodation chamber 27. An accommodating portion 37 is provided. The plurality of female terminals 35 accommodated in the plurality of terminal accommodating portions 37 are prevented from coming off by being engaged with a locking lance 39, a double locking member 41 inserted into the terminal accommodating portion 37, or the like. .

  The lock portion 23 is swingably provided above the storage chamber 27 with the opening 31 side of the storage chamber 27 as a base end, and includes an insertion groove 25 and a locking projection 43. The insertion groove 25 is provided on the accommodation chamber 27 side which is the lower surface of the lock portion 23, and the base portion 21 of the terminal 5 is inserted to support the terminal 5. Thus, by inserting the base 21 of the terminal 5 into the insertion groove 25 and supporting the terminal 5, the arrangement position of the terminal 5 is changed by the rocking of the lock portion 23.

  The locking convex portion 43 is provided at the center of the upper surface of the lock portion 23, the front side in the fitting direction with the second housing 9 is an inclined surface, and the rear side in the fitting direction is a vertical surface. It is a locking surface. When the first housing 7 and the second housing 9 are fitted, the locking projection 43 swings the lock portion 23 downward by the inclined surface abutting on the locked portion 45 of the second housing 9. When the first housing 7 and the second housing 9 are properly fitted to each other, the locking surface is locked to the locked portion 45 by restoring the locking portion 23 upward.

  An operation unit 47 is provided on the distal end side of the lock unit 23. When the operation unit 47 is pressed downward, the lock unit 23 is swung downward, so that the locking projection 43 and the covered portion are covered. The locking with the lock portion 45 is released, and the fitting between the first housing 7 and the second housing 9 can be released.

  The second housing 9 is made of an insulating material such as synthetic resin, is formed in a housing shape, and includes a hood portion 49 and a rib 29. The hood portion 49 is opened on the front side in the fitting direction with the first housing 7, and three hood portions 49 are provided in the width direction of the second housing 9, and the first housing 7 can be fitted to each hood portion 49. It has become. Further, at the opening end of the hood portion 49, a locked portion 45 to which the locking convex portion 43 of the locking portion 23 of the first housing 7 is brought into contact and locked is extended downward. A rib 29 is provided in the hood portion 49.

  The rib 29 extends in the hood portion 49 from the wall portion into which the pair of mating terminals 13 and 13 are inserted toward the front side in the fitting direction with the first housing 7. The rib 29 supports the contacted portions 11 and 11 of the pair of mating terminals 13 and 13 disposed in the hood portion 49, and allows the first housing 7 and the second housing 9 to be fitted to each other. It is inserted into the accommodation chamber 27 through the opening 31 of the housing 7.

  The hood portion 49 accommodates and arranges connection portions of a plurality of L-shaped male terminals 53 connected to the substrate 51. The plurality of male terminals 53 are electrically connected to the plurality of female terminals 35 accommodated in the first housing 7 when the first housing 7 and the second housing 9 are in a properly fitted state.

  The pair of mating terminals 13 and 13 is made of a conductive material, is formed in an L shape, is connected to the substrate 51 at one end side, and is inserted into the hood portion 49 at the other end side to be supported on the rib 29. Parts 11 and 11. Further, the contacted parts 11 and 11 are arranged on the rib 29 in parallel in the direction orthogonal to the fitting direction of the first housing 7 and the second housing 9, specifically in the width direction of the rib 29. The pair of mating terminals 13 and 13 are respectively connected to a conduction circuit formed on the substrate 51, and the pair of contact portions 3 and 3 of the terminal 5 are brought into contact with the contacted portions 11 and 11 through the terminal 5, respectively. Thus, the pair of mating terminals 13 and 13 are electrically connected.

  When the first housing 7 and the second housing 9 are properly fitted to each other, the pair of mating terminals 13 and 13 are pressed against the contacted portions 11 and 11 by the urging force of the elastic piece 17 of the terminal 5. The pair of contact portions 3 and 3 are brought into contact and conducted. The fitting state between the first housing 7 and the second housing 9 can be detected based on the presence or absence of conduction between the pair of mating terminals 13 and 13. Such an elastic piece 17 of the terminal 5 is displaced by a displacement portion 19 provided in the first housing 7.

  The displacement part 19 is provided in the accommodation chamber 27 of the first housing 7 so as to face the lock part 23 and has a fulcrum part 55 protruding from the lock part 23 side. The fulcrum portion 55 is in contact with the elastic piece 17 of the terminal 5 in a state where the terminal 5 is assembled to the first housing 7. Due to the contact between the fulcrum portion 55 and the elastic piece 17 of the terminal 5, the elastic piece 17 of the terminal 5 whose arrangement position is changed by the swinging of the lock portion 23 can be displaced against the urging force.

  Specifically, during the fitting of the first housing 7 and the second housing 9, the arrangement position of the terminal 5 is changed downward by the downward swing of the lock portion 23, so that the fulcrum portion 55 is elastic. The elastic piece 17 is displaced upward against the urging force of 17. Due to the displacement of the elastic piece 17, the pair of contact portions 3, 3 and the contacted portions 11, 11 of the pair of mating terminals 13, 13 are separated from each other, and conduction between the terminal 5 and the pair of mating terminals 13, 13 is prevented. Is done. Thereby, it can be detected that the first housing 7 and the second housing 9 are in a half-fitted state.

  On the other hand, in the normal fitting state between the first housing 7 and the second housing 9, the arrangement position of the terminal 5 is changed upward by the upward swing of the lock portion 23, and thereby the urging force of the elastic piece 17 is applied. The elastic piece 17 is displaced downward. Due to the displacement of the elastic piece 17, the pair of contact portions 3, 3 are brought into contact with the contacted portions 11, 11 of the pair of mating terminals 13, 13 by the biasing force of the elastic piece 17, and a pair of mating terminals are connected via the terminal 5. 13 and 13 are conducted. Thereby, it can detect that the 1st housing 7 and the 2nd housing 9 are a regular fitting state.

  Thus, the contacted part 11 of the pair of contacted terminals 11, 11 of the pair of contacted terminals 13, 13 that are contacted with or released from the pair of contacted parts 3, 3 of the terminal 5 has a pair of contacted terminals. Before the contacted parts 11, 11 of 13, 13 are brought into contact with the pair of contact parts 3, 3, the first housing 7 and the second housing 9 are fitted together to slide with the pair of contact parts 3, 3. A sliding portion 15 is provided.

  The sliding portion 15 is a fitting direction between the first housing 7 and the second housing 9 from the tip of the one contacted portion 11 of the contacted portions 11, 11 arranged in parallel to the other contacted portion 11. Are extended in the arrangement direction of the contacted parts 11, 11. Further, the front end surface of the sliding portion 15 is an inclined surface that is inclined upward from the front side to the rear side in the fitting direction of the first housing 7 and the second housing 9.

  The sliding portion 15 is formed between the first housing 7 and the second housing 9 after the first housing 7 and the second housing 9 start to be fitted and before the lock portion 23 starts swinging. The ribs 29 are inserted into the openings 31 of the first housing 7 by fitting to slide with the pair of contact portions 3 and 3 of the terminal 5. By sliding between the sliding portion 15 and the pair of contact portions 3 and 3, impurities such as dust adhering to the surface of the pair of contact portions 3 and 3 and an oxide film formed on the surface can be removed. It is possible to prevent poor conduction between the pair of contact portions 3 and 3 and the contacted portions 11 and 11 of the pair of mating terminals 13 and 13 due to the presence of impurities.

  Thus, by providing the sliding part 15 that slides with the pair of contact parts 3 and 3 only on the one contacted part 11, even if the pair of contact parts 3 and 3 and the sliding part 15 slide. The pair of mating terminals 13 and 13 are not electrically connected via the terminal 5, and it is possible to prevent the first housing 7 and the second housing 9 from being misidentified as being properly fitted in the half-fitted state. it can.

  On the other hand, the elastic piece 17 of the terminal 5 is displaced by the displacement portion 19 by sliding the pair of contact portions 3 and 3 and the sliding portion 15 before the lock portion 23 starts swinging. The pair of contact portions 3 and 3 and the sliding portion 15 can be reliably slid.

  In the fitting detection connector 1 configured in this way, first, the terminal 5 and each member are assembled to the first housing 7, and the pair of mating terminals 13 and 13 and each member are assembled to the second housing 9. Next, the first housing 7 and the second housing 9 are fitted.

  The rib 29 of the second housing 9 is inserted from the opening 31 of the first housing 7 after the first housing 7 and the second housing 9 start to be fitted and until the lock portion 23 starts swinging. Then, the pair of contact portions 3 and 3 of the terminal 5 and the sliding portion 15 of the one contacted portion 11 slide. By this sliding, impurities on the surfaces of the pair of contact portions 3 and 3 are removed.

  In the middle of fitting between the first housing 7 and the second housing 9, the locking projection 43 of the lock portion 23 is brought into contact with the top surface of the locked portion 45, and the lock portion 23 is swung downward. The arrangement position is changed downward. Due to the change in the arrangement position of the terminal 5, the elastic piece 17 is displaced upward by the displacement portion 19, and the pair of contact portions 3, 3 of the terminal 5 and the contacted portions 11, 11 of the pair of mating terminals 13, 13 are connected. Spaced apart. By releasing the contact, conduction between the terminal 5 and the pair of mating terminals 13 and 13 is prevented, and a half-fitted state between the first housing 7 and the second housing 9 can be detected.

  And when the 1st housing 7 and the 2nd housing 9 will be in a regular fitting state, the latching convex part 43 of the lock part 23 is latched by the to-be-locked part 45, and the lock part 23 is rock | fluctuated upwards, The arrangement position of the terminal 5 is changed upward. Due to the change in the arrangement position of the terminal 5, the elastic piece 17 is displaced downward by the urging force, and the pair of contact parts 3, 3 are moved by the urging force of the elastic piece 17 to the contacted parts 11, 13 of the pair of mating terminals 13, 13. 11 is contacted. By this contact, it is possible to detect that the pair of mating terminals 13 and 13 are conducted through the terminal 5 and the first housing 7 and the second housing 9 are in the properly fitted state.

  In such a fitting detection connector 1, before the contacted parts 11, 11 of the pair of mating terminals 13, 13 contact the contacted part 11 of one mating terminal 13, Since the sliding portion 15 that slides with the pair of contact portions 3 and 3 is provided by fitting the first housing 7 and the second housing 9, the sliding portion 15 is slid with the pair of contact portions 3 and 3. Even if it moves, the pair of mating terminals 13 and 13 are not conducted through the terminal 5.

  For this reason, before the 1st housing 7 and the 2nd housing 9 will be in a regular fitting state, the dust adhering to the surface of a pair of contact parts 3 and 3 by the sliding part 15, the oxide film formed on the surface, etc. The impurities can be removed.

  Therefore, in such a fitting detection connector 1, poor conduction between the terminal 5 and the mating terminal 13 can be prevented, and the detectability of the fitting state between the housings 7 and 9 can be improved.

  Moreover, since the sliding part 15 is located in the front side of the fitting direction of the 1st housing 7 and the 2nd housing 9 rather than the to-be-contacted part 11 of the other counterpart terminal 13, it is a pair of counterpart terminals with a simple structure. Before the contact parts 11 and 13 of the 13 and 13 are brought into contact with the pair of contact parts 3 and 3, the pair of contact parts 3 and 3 and the sliding part 15 can be reliably slid.

  Further, the first housing 7 has a displacement portion 19 for displacing the elastic piece 17 against the urging force of the elastic piece 17 until the first housing 7 and the second housing 9 are properly fitted. Since the first housing 7 and the second housing 9 are half-fitted, the pair of contact portions 3 and 3 and the pair of mating terminals 13 and 13 are covered by the displacement of the elastic piece 17 by the displacement portion 19. The contact portions 11 and 11 do not come into contact with each other, and the half-fitted state between the first housing 7 and the second housing 9 can be reliably detected.

  In the fitting detection connector according to the embodiment of the present invention, the first housing is provided with a displacement portion for displacing the elastic piece of the terminal, but the second housing may be provided with a displacement portion. In this case, for example, in the rib of the second housing, the displacement portion protrudes upward so that it can be inserted between the sliding portion and the other contacted portion between the pair of contact portions. After the contact portion and the sliding portion slide, the elastic piece may be displaced by the displacement portion.

DESCRIPTION OF SYMBOLS 1 ... Fitting detection connector 3 ... Contact part 5 ... Terminal 7 ... 1st housing 9 ... 2nd housing 11 ... Contacted part 13 ... Mating terminal 15 ... Sliding part 17 ... Elastic piece 19 ... Displacement part

Claims (3)

A terminal provided with a pair of contact portions; a first housing that accommodates the terminal; a second housing that can be fitted into the first housing; and the first housing and the second housing that are accommodated in the second housing. A fitting detection connector comprising a pair of mating terminals each provided with a contacted portion that comes into contact with the pair of contact portions in a regular fitting state with a housing,
One of the contacted parts of the pair of mating terminals is fitted to the first housing and the second housing before the contacted parts of the pair of mating terminals are brought into contact with the pair of contact parts. A fitting detection connector characterized in that a sliding portion sliding with the pair of contact portions is provided. The fitting detection connector according to claim 1,
The contacted portions of the pair of mating terminals are arranged in parallel in a direction orthogonal to the fitting direction of the first housing and the second housing,
The fitting detection connector, wherein the sliding portion is located on the front side in the fitting direction of the first housing and the second housing from the contacted portion of the other mating terminal. The fitting detection connector according to claim 1 or 2,
The terminal is provided with an elastic piece that is provided with the pair of contact portions and that makes the pair of contact portions contact the contacted portions of the pair of mating terminals by a biasing force.
At least one of the first housing and the second housing has the elasticity against the urging force of the elastic piece until the first housing and the second housing are in a properly fitted state. A fitting detection connector characterized in that a displacement portion for displacing the piece is provided.

Images