CN110571568B - Connector with a locking member - Google Patents
Connector with a locking member Download PDFInfo
- Publication number
- CN110571568B CN110571568B CN201910461143.5A CN201910461143A CN110571568B CN 110571568 B CN110571568 B CN 110571568B CN 201910461143 A CN201910461143 A CN 201910461143A CN 110571568 B CN110571568 B CN 110571568B
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- CN
- China
- Prior art keywords
- terminal
- housing
- retainer
- engaging portion
- terminal engaging
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/42—Securing in a demountable manner
- H01R13/424—Securing in base or case composed of a plurality of insulating parts having at least one resilient insulating part
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
Abstract
The invention provides a connector, which can prevent a terminal clamping part from excessively bending and can easily detach a terminal from a shell. A connector (1) is provided with: a housing (2) in which a terminal (100) is held so as to be insertable and removable; and a retainer (20) that is locked at a temporary locking position (X) and a final locking position (Y) with respect to the housing (2). The housing (2) has a terminal engaging portion (5) provided so as to be swingable relative to the main body portion (3), and is engaged with the terminal (100). The housing (2) is provided with an opening (10), and at least a part of the terminal engagement section (5) can be visually recognized through the opening (10) in a state where the retainer (20) is locked at the temporary locking position (X). The retainer (20) has a deflection limiting section (21) that limits the amount of deflection of the terminal engaging section (5) at least at the temporary locking position (X).
Description
Technical Field
The present invention relates to a connector capable of inserting and extracting a terminal.
Background
Conventionally, as a connector, for example, there is a connector configured to be able to insert and remove a terminal and to engage and disengage the terminal with and from a housing.
For example, a connector disclosed in japanese patent application laid-open No. 2006-100237 is configured to include a housing and a holder. The housing holds the terminal, and the retainer is configured to be movable between a temporary locking position where the terminal can be inserted into and removed from the housing and a final locking position where the terminal is held in a state where the terminal is prevented from falling off from the housing. The housing has a terminal engaging portion provided as a lance for engaging with the terminal, and the retainer has a deflection restricting portion for restricting excessive deflection of the terminal engaging portion when the retainer is located at the temporary locking position. That is, in the connector disclosed in japanese patent application laid-open No. 2006-100237, when the retainer is located at the final engagement position, the terminal engagement portion is held so as not to be disengaged from the terminal. Further, even if the terminal engaging portion attempts to flex and deform outward of the side surface of the housing beyond the elastic limit when the retainer is located at the temporary locking position, the flexure restricting portion can prevent the terminal engaging portion from deforming beyond the elastic limit by abutting against the flexure restricting portion.
Disclosure of Invention
However, in the connector disclosed in japanese patent application laid-open No. 2006-100237, when the terminal is detached from the housing, a tool having a sharp tip or the like needs to be inserted between the housing and the holder so as to enter the housing, and the engagement of the terminal engagement portion needs to be released from the terminal. In such a situation where the inside of the housing is not visible, the worker must press an appropriate pressing portion of the terminal engaging portion with an appropriate force to release the engagement from the terminal in order to avoid damage to the terminal engaging portion due to the exceeding of the elastic limit. Therefore, the operator is required to release the engagement by searching for it, and the terminal engagement portion is likely to be excessively bent by mistake.
The present invention has been made to solve the above-described problems, and an object thereof is to provide a connector in which a terminal engaging portion is prevented from being excessively bent, and a terminal can be easily detached from a housing.
(1) In order to solve the above problem, a connector according to an aspect of the present invention includes: a housing in which the terminal is inserted and held; and a retainer that is latched to the housing at a temporary latching position where the terminal can be inserted and removed and a final latching position where the terminal is retained, wherein the housing has a terminal engaging portion that is provided to be swingable relative to a main body portion of the housing so as to engage with the terminal, wherein the housing has an opening in an outer peripheral surface, wherein at least a part of the terminal engaging portion is visible from outside the housing through the opening in a state where the retainer is latched to the temporary latching position, and wherein the retainer has a flexure restricting portion that restricts an amount of the terminal engaging portion at least in a state where the retainer is latched to the temporary latching position.
In this structure, the connector includes a housing and a holder. The retainer is locked to the housing at a temporary locking position where the terminals can be inserted and removed and a final locking position where the terminals are held. The retainer has a deflection limiting portion for limiting the deflection of the terminal engaging portion in a state where at least the retainer is locked at the temporary locking position. The housing has an opening in an outer peripheral surface thereof, through which at least a part of the terminal engaging portion can be visually recognized from the outside. Therefore, when releasing the terminal from the terminal engaging portion, the operator can visually recognize the pressing portion of the terminal engaging portion in advance. Accordingly, the operator can easily release the engagement of the terminal engaging portion, and therefore, the terminal engaging portion can be prevented from being excessively bent beyond the elastic limit, and the terminal can be easily removed from the housing.
Therefore, according to this structure, it is possible to provide a connector capable of preventing the terminal engaging portion from being excessively bent and easily detaching the terminal from the housing.
(2) Preferably, the terminal engaging portion extends in a cantilever shape, and the opening is provided so as to be visible from at least one direction of directions perpendicular to the cantilever-extending terminal engaging portion.
In this structure, the terminal engaging portion extends in a cantilever shape, and an opening for visually recognizing the terminal engaging portion is provided in a direction perpendicular to the extending direction of the terminal engaging portion. Therefore, when the operator releases the engagement of the terminal engaging portion from the terminal, the operator can easily visually confirm the pressing portion of the terminal engaging portion in advance from a direction perpendicular to the extending direction of the terminal engaging portion. Thus, the operator can reliably and easily perform the operation of releasing the engagement of the terminal engagement portion. Further, in this structure, the opening may be provided in the width direction of the terminal engagement portion. This makes it possible to easily check the amount of deflection of the terminal engaging portion in the vertical direction and perform the operation, and therefore, the operation of releasing the engagement can be performed more easily. As a result, the terminal engaging portion can be reliably prevented from being excessively bent beyond the elastic limit.
(3) Preferably, the opening is formed in a window shape on a side surface of the housing.
In this structure, the window-shaped opening is provided in the side surface of the housing. Therefore, when releasing the engagement of the terminal engaging portion from the terminal, an operator can perform an operation while confirming the deflection of the terminal engaging portion from the side surface of the housing through the window-shaped opening provided to be easily visible. This makes it easier for the operator to release the terminal engaging portion from the terminal. As a result, the terminal engaging portion can be more reliably prevented from being excessively bent beyond the elastic limit.
(4) Preferably, the opening is closed by the retainer in a state where the retainer is retained at the final retaining position.
In this configuration, the opening provided in the housing is closed by the retainer in a state where the retainer is locked at the final locking position. Thus, in a state where the retainer is locked at the final locking position, external force can be prevented from acting on the terminal engagement portion. Further, it is possible to prevent dust and dirt from entering the inside of the housing, and thus, occurrence of contact failure and abnormality of the terminal can be reliably suppressed.
(5) Preferably, the housing has a lock portion that locks the retainer to the housing at the final locking position and locks the retainer, and a region in a longitudinal direction of the terminal engaging portion and a region in a direction parallel to the longitudinal direction of the terminal engaging portion of the lock portion at least overlap each other when viewed in a direction perpendicular to a terminal insertion direction.
In this configuration, the housing has a lock portion capable of locking the retainer at the final engagement position. Further, a region in the longitudinal direction of the terminal engaging portion and a region in a direction parallel to the longitudinal direction of the terminal engaging portion of the locking portion overlap each other when viewed from a direction perpendicular to the terminal insertion direction. Therefore, the terminal engaging portion is deflected at a position close to the locking portion. Thus, the contact position of the terminal engaging portion with respect to the deflection regulating portion is located relatively close to the locking portion in the direction parallel to the longitudinal direction of the terminal engaging portion. Therefore, the moment force about the lock portion generated in the retainer can be suppressed when the terminal engaging portion abuts against the deflection restricting portion. Thus, even when the terminal engagement portion, from which engagement is released, abuts against the flexure limiting portion, it is possible to suppress generation of a large force in the rotational direction in the retainer. As a result, when the terminal engaging portion is disengaged from the terminal, the retainer can be further prevented from floating from the housing and the terminal engaging portion can be prevented from being excessively bent and damaged.
(6) Preferably, an abutting position at which the terminal engaging portion abuts against the deflection restricting portion in a state where the engagement is released from the terminal is within a range of a width of the locking portion in a direction parallel to the terminal insertion direction in the holder.
In this structure, the position where the terminal engagement portion from which engagement is released abuts against the deflection restricting portion of the holder is located within the width range of the lock portion. Therefore, the moment force about the lock portion generated in the retainer when the terminal engaging portion abuts against the deflection restricting portion can be further reduced. As a result, when the terminal engaging portion is disengaged from the terminal, the deflection restricting portion is pressed by the terminal engaging portion, and the retainer is further prevented from being lifted from the housing, and the terminal engaging portion is prevented from being excessively deflected and damaged.
Effects of the invention
According to the present invention, it is possible to provide a connector capable of preventing the terminal engaging portion from being excessively bent and easily detaching the terminal from the housing.
Drawings
Fig. 1 is a perspective view showing a connector of an embodiment of the present invention.
Fig. 2 is a perspective view showing an exploded state of the connector shown in fig. 1.
Fig. 3 is a side view showing a state before the connector shown in fig. 1 is inserted into the terminal.
Fig. 4 is a side view showing a state in which a terminal is inserted in the connector shown in fig. 1.
Fig. 5 is a side view showing a state in which the retainer is held at the final locking position in the connector shown in fig. 4.
In fig. 6, (a) is a front view of a state in which the retainer is held at the temporary locking position, and (b) is a front view of a state in which the retainer is held at the final locking position.
In fig. 7, (a) is a sectional view showing a section at an arrow position on the line a-a of fig. 4, and (B) is a sectional view showing a section at an arrow position on the line B-B of fig. 5.
In fig. 8, (a) is a sectional view showing a section at an arrow position of a line C-C in fig. 6 (a), and (b) is a sectional view showing a section at an arrow position of a line D-D in fig. 6 (b).
Fig. 9 is a diagram for explaining an operation of releasing the engagement of the terminal engagement portion.
Fig. 10 is a cross-sectional view showing a state in which the terminal engagement portions are disengaged from the terminals in the connector shown in fig. 9.
Description of the reference symbols
1: a connector;
2: a housing;
3: a body portion;
9: a locking portion;
10: an opening;
20: a holder;
21: a deflection restricting section;
100: a terminal;
x: a temporary locking position;
y: the formal locking position.
Detailed Description
Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is widely applicable to various applications as a connector in which a terminal can be inserted and removed.
[ schematic view of connector ]
Fig. 1 is a perspective view showing a connector 1 of an embodiment of the present invention. Fig. 2 is a perspective view showing an exploded state of the connector 1 shown in fig. 1. Fig. 3 is a side view showing a state before the terminal 100 is inserted into the connector 1 shown in fig. 1. Fig. 4 is a side view showing a state in which the terminal 100 is inserted in the connector 1 shown in fig. 1. Fig. 5 is a side view showing a state in which the retainer 20 is held at the final locking position Y of the connector 1 shown in fig. 4. Fig. 6 (a) is a front view of the retainer 20 held at the temporary locking position X. Fig. 6 (b) is a front view of the retainer 20 held at the final locking position Y. Fig. 7 (a) is a sectional view showing a cross section at the arrow position of the line a-a of fig. 4. Fig. 7 (B) is a sectional view showing a section at the arrow position of the line B-B of fig. 5. Fig. 8 (a) is a sectional view showing a cross section at an arrow position of a line C-C in fig. 6 (a). Fig. 8 (b) is a sectional view showing a cross section at an arrow position of a D-D line in fig. 6 (b).
The connector 1 is detachably connected to a mating connector not shown. Referring to fig. 1, a connector 1 includes a housing 2 and a holder 20. The terminal 100 is inserted and held in the housing 2. The retainer 20 is locked to the housing 2 at a temporary locking position X where the terminal 100 can be inserted and removed and a final locking position Y where the terminal 100 is held.
In fig. 1 to 8 and the following drawings, for convenience of explanation, a direction indicated by an arrow denoted by "right" is referred to as "right side", a direction indicated by an arrow denoted by "left" is referred to as "left side", a direction indicated by an arrow denoted by "up" is referred to as "upper side" or "upper side", a direction indicated by an arrow denoted by "lower side" or "lower side", a direction indicated by an arrow denoted by "front" is referred to as "front side" or "front side", and a direction indicated by an arrow denoted by "rear" is referred to as "rear side" or "rear side". The front direction refers to a direction in which the terminal 100 is inserted into the housing 2 (insertion direction), and the rear direction refers to a direction in which the terminal 100 is pulled out from the housing 2 (pull-out direction). The vertical direction in the connector 1 is the height direction of the connector 1, and the horizontal direction in the connector 1 is the width direction of the connector 1.
Here, referring to fig. 3, 4, 6 (a), 7 (a), and 8 (a), the temporary locking position X is a position at which the retainer 20 is held by the housing 2 in a state in which a later-described flexure restricting portion 21 locked to the retainer 20 of the housing 2 is separated by a predetermined distance D (see fig. 8 (a)) from a lower end of a later-described terminal engaging portion 5 provided swingably to the body portion 3 of the housing 2. At this time, the terminal engaging portion 5 is in a state of being able to be bent outward by a predetermined distance D from the main body portion 3. Also, the holder 20 is held in a state of protruding from the outer peripheral surface of the main body portion 3 of the housing 2. Referring to fig. 1, 5, 6 (b), 7 (b), and 8 (b), the final locking position Y is a position at which the retainer 20 is held by the housing 2 in a state in which the deflection restricting portion 21 of the retainer 20 is close to the terminal engaging portion 5. At this time, the deflection restricting portion 21 of the holder 20 approaches the terminal engaging portion 5, and the terminal engaging portion 5 is in a state of being unable to deflect outward from the main body portion 3. Also, the outer peripheral surface of the holder 20 is held in a coplanar state with the outer peripheral surface of the main body portion 3 in the housing 2. The holder mounting port 6 described later is closed by the holder 20.
Although not shown, the mating connector connected to the connector 1 includes a mating terminal and a mating housing. The mating terminal is configured to be electrically and mechanically connected to the terminal 100 inserted and held in the connector 1 in a state of being inserted into the mating housing.
[ Structure of terminal ]
The terminal 100 is configured to be capable of engaging with and disengaging from the housing 2, and to be capable of being inserted into and pulled out from the connector 1. The terminal 100 is a conductive member made of metal. Referring to fig. 2, the terminal 100 is formed in a substantially cylindrical shape, and a cable 101 is attached to a proximal end side by crimping. The terminal 100 is configured to be detachable from the housing 2. The terminal 100 includes a terminal connecting portion 102 and a receiving portion 103.
The terminal connecting portion 102 is provided at the tip portion of the terminal 100, and is electrically and mechanically connected to the counterpart terminal by insertion and removal.
The receiving portion 103 is provided to hold the terminal 100 in a state of being prevented from coming off the housing 2. The receiving portion 103 is provided at a substantially central portion of the terminal 100 in the front-rear direction, and engages with a terminal engaging portion 5 described later. As shown in fig. 2, the receiving portion 103 includes a pair of annular projections 104 and 104 that annularly project radially outward from the circumferential surface of the terminal 100.
The pair of annular projections 104, 104 are formed to define the receiving portion 103. The pair of annular projections 104, 104 project from the peripheral surface of the terminal 100 and are arranged parallel to each other. As shown by the broken lines in fig. 5, the pair of annular projections 104, 104 are disposed on the terminal 100 at a predetermined distance in the front-rear direction.
[ Structure of case ]
Referring to fig. 1 to 8, the housing 2 includes a main body portion 3, a fixing piece 4, a terminal engaging portion 5, and a holder attachment opening 6. The housing 2 is made of an insulating resin material and is formed in a cylindrical shape elongated in the front-rear direction.
The main body portion 3 is provided with a terminal insertion portion 7, a housing connection portion 8, a locking portion 9, and an opening 10. The terminal 100 is inserted into the body portion 3 from the rear side, and the body portion 3 is connected with the counterpart housing at the front side.
Referring to fig. 1 to 5, and 8, a terminal insertion portion 7 is provided at a rear end portion of the main body portion 3. The terminal insertion portion 7 is formed with a terminal insertion opening 11 into which the terminal 100 is inserted.
The housing connecting portion 8 is configured as a portion to be connected to the counterpart housing. Referring to fig. 1 to 6 and 8, the housing connection portion 8 is formed in a substantially cylindrical shape extending in the front-rear direction. A positioning projection 12 is provided on the outer peripheral surface of the housing connecting portion 8, and the positioning projection 12 is used for positioning when connecting to the counterpart housing. The positioning projection 12 is formed in a projection shape extending in the front-rear direction on the peripheral surface of the housing connecting portion 8.
Referring to fig. 7 and 8, the lock portion 9 is provided to lock the retainer 20 to the housing 2 at the temporary locking position X and the final locking position Y. As shown in fig. 7, the locking portions 9 are provided to protrude from the inner peripheral surface in the left-right direction of the main body portion 3 so as to face inward, respectively. The lock portion 9 is provided on the inner peripheral surface of the main body portion 3 so as to be locked in a temporary locking groove 26 and a main locking groove 27, which will be described later, of the retainer 20. The locking portion 9 is formed in a trapezoidal shape with a narrow width at the distal end side in a cross section perpendicular to the insertion direction of the terminal 100. Further, the locking portion 9 is formed to extend in the front-rear direction. In addition, the front-rear direction of the lock portion 9 is hereinafter referred to as the width direction of the lock portion 9. The width direction of the locking portion 9 is parallel to the insertion direction of the terminal 100 with respect to the housing 2. The locking portion 9 has a region parallel to the longitudinal direction of the terminal engaging portion 5 described later. As shown in fig. 8 (a) and (b), the length L in the width direction of the lock portion 9 is set longer than the length in the front-rear direction of the housing insertion portion 22 described later.
The opening 10 is provided for visually recognizing the terminal engaging portion 5 provided in the housing 2. Referring to fig. 3 and 4, an opening 10 is provided on the outer circumferential surface of the main body portion 3 of the housing 2. The opening 10 is provided so that at least a part of the terminal engaging portion 5 can be visually recognized from the outside of the housing 2 in a state where the retainer 20 is locked at the temporary locking position X. At this time, since a part of the terminal engaging portion 5 can be visually recognized through the opening 10, a worker can visually recognize at least a deflection of a part of the terminal engaging portion 5 in the housing 2.
The opening 10 in the present embodiment is provided so that the terminal engaging portion can be visually recognized from at least one direction of the directions perpendicular to the terminal engaging portion 5 extending in a cantilever shape. The opening 10 is formed in a window shape on the side surface of the housing 2. The opening 10 is formed in a shape and a size into which a tool such as a rod-like member S for releasing the engagement of the terminal engagement portion 5 from the receiving portion 103 can be inserted. The opening 10 in the present embodiment is provided on the side surface of the housing 2 in the width direction of the terminal engagement portion 5. Therefore, the operator can easily check the amount of vertical deflection of the terminal engaging portion 5 and can easily release the terminal engaging portion 5 from the terminal 100. This can reliably prevent the terminal engaging portion 5 from being excessively bent beyond the elastic limit.
In a state where the retainer 20 is locked at the final locking position Y, the opening 10 is closed by the retainer 20. That is, the opening 10 provided in the housing 2 is closed by the movement of the retainer 20 from the temporary locking position X to the final locking position Y.
The fixing piece 4 is used to fix the housing 2 to the counterpart housing in a detachable manner. Referring to fig. 1 to 6 and 8, the fixing piece 4 is provided on the upper side of the case connection portion 8. And, cantilevered rearward from the front side of the main body portion 3. The fixing piece 4 has a protrusion 14 protruding upward at a substantially central portion in the front-rear direction. The housing 2 is connected to the counterpart housing by fitting the projection 14 into a hole formed in the counterpart housing.
That is, when the housing 2 is inserted into the mating housing, first, the housing connecting portion 8 enters the mating housing, and the projection 14 abuts against the inner peripheral surface of the mating housing. At this time, the projection 14 is pressed downward by the counterpart housing. Next, the protrusion 14 is pressed by the counterpart housing, and the fixing piece 4 supporting the protrusion 14 is bent downward and enters the counterpart housing. Further, the projection 14 entering the mating housing is fitted into a hole or the like of the mating housing, whereby the fixing piece 4 is restored and the housing 2 is connected to the mating housing. When the housing 2 is pulled out from the mating housing, the tip portion of the cantilever-shaped fixing piece 4 is pressed to release the state where the protrusion 14 is fitted into the mating housing, and then the housing is pulled out.
The terminal engaging portion 5 is provided to engage the housing 2 with the terminal 100. Referring to fig. 3 to 8, the terminal engaging portion 5 is provided to be swingable with respect to the main body portion 3 of the housing 2 so as to engage with the terminal 100. As shown by the broken line in fig. 3, the terminal engagement portion 5 is formed in a cantilever shape extending in the front-rear direction. More specifically, the terminal engaging portion 5 extends in a direction parallel to the insertion direction of the terminal 100 on the lower side of the main body portion 3. The terminal engaging portion 5 has a region parallel to the longitudinal direction of the locking portion 9. As shown in fig. 4, the terminal engaging portion 5 engages with the receiving portion 103 of the terminal 100 to restrict the movement of the terminal 100 in the front-rear direction with respect to the housing 2. As shown in fig. 5, the terminal engaging portions 5 are arranged so that the deflection restricting portions 21 are located below the terminal engaging portions 5 when the retainer 20 is locked at the final locking position Y, and therefore the terminal engaging portions 5 do not deflect outward. As a result, the terminal engaging portion 5 is held so as not to be disengaged from the receiving portion 103 of the terminal 100 by an unexpected external force.
The holder mounting port 6 is an opening portion where the holder 20 is disposed. Referring to fig. 3, 4, 6 (a), 7 (a) and 8 (a), the holder attachment opening 6 is formed in a substantially central portion of the lower side of the holder 20. In the holder mounting port 6, a part of the holder 20 is mounted in a state of being inserted into the inside of the housing 2. In the retainer mounting opening 6, the retainer 20 forms a gap with the body portion 3 when located at the temporary locking position X. That is, the opening 10 is formed as a part of the holder mounting port 6. The retainer mounting opening 6 is closed by the retainer 20 when the retainer 20 is located at the final locking position Y.
[ Structure of holder ]
The holder 20 is arranged for: when the terminal engaging portion 5 is located at the temporary locking position X, the terminal engaging portion 5 is prevented from being damaged by excessive deflection, and when the terminal engaging portion 5 is located at the final locking position Y, the terminal 100 is held so as not to be disengaged from the terminal. Referring to fig. 2, the holder 20 includes a flexure restricting portion 21 and a housing insertion portion 22. The retainer 20 is locked at the temporary locking position X and the final locking position Y with respect to the housing 2. That is, the retainer 20 is held slidably in the vertical direction with respect to the main body portion 3 of the housing 2, and is held at any one of the temporary locking position X and the final locking position Y.
The deflection restriction portion 21 is provided for restricting excessive deflection of the terminal engagement portion 5 of the housing 2 from the main body portion 3 to the outside in a state where the holder 20 is attached to the housing 2. Referring to fig. 2, the flexure limiting portion 21 is formed to extend in the front-rear direction. The flexure limiting portion 21 is disposed substantially parallel to the extending direction of the terminal engaging portion 5. The flexure limiting portion 21 is disposed below the terminal engaging portion 5. As shown in fig. 8 (a), when the retainer 20 is located at the temporary locking position X, the flexure limiting portions 21 are held in a state of being separated by a predetermined distance D from the terminal engaging portions 5. That is, the terminal engaging portion 5 abuts against the flexure limiting portion 21 when the engagement is released from the terminal 100, and the flexure limiting portion 21 is configured to limit the amount of flexure of the terminal engaging portion 5 at least in a state of being locked at the temporary locking position X. Thus, when the retainer 20 is located at the temporary locking position X, the terminal engagement portion 5 is restricted so as not to be damaged by being deflected outward by a distance D or more from the body portion 3.
As shown in fig. 8 (b), when the retainer 20 is located at the final locking position Y, the deflection restricting portion 21 is disposed close to the lower side of the terminal engaging portion 5 so as to prevent the terminal engaging portion 5 from deflecting outward from the main body portion 3. That is, when the retainer 20 is located at the final locking position Y, the terminal engaging portion 5 is not deflected downward by coming into contact with the deflection restricting portion 21 of the retainer 20. The terminal engaging portion 5 is not disengaged from the receiving portion 103 of the terminal 100.
The housing insertion portion 22 is provided for: the retainer 20 is locked to the housing 2 by the locking claws 23 and 24, which are described later, being supported. Referring to fig. 2, 7, and 8, the housing insertion portions 22 are provided at both ends of the flexure limiting portion 21 in the left-right direction, respectively, and are provided in a pair. The pair of housing insertion portions 22, 22 extend upward from the deflection regulating portion 21, and each include a temporary locking claw 23, a main locking claw 24, a bulging portion 25, a temporary locking groove 26, and a main locking groove 27.
The temporary locking claw 23 is provided to hold the retainer 20 at the temporary locking position X with respect to the housing 2. Referring to fig. 2 and 7, the temporary locking claws 23 are formed to protrude outward in the left-right direction from the outer surfaces of the pair of housing insertion portions 22 and 22 in the left-right direction, respectively. The temporary locking claw 23 extends in a direction parallel to the insertion direction of the terminal 100. The temporary locking claw 23 is formed in a substantially trapezoidal shape in a cross section perpendicular to the insertion direction of the terminal 100.
The final locking claw 24 is provided to hold the retainer 20 at the final locking position Y with respect to the housing 2. Referring to fig. 2 and 7, the main locking claws 24 are formed to protrude outward in the left-right direction from the outer surfaces of the pair of housing insertion portions 22 and 22 in the left-right direction, respectively. The main locking claw 24 extends in a direction parallel to the insertion direction of the terminal 100. The temporary locking claw 23 is formed in a substantially trapezoidal shape in a cross section perpendicular to the insertion direction of the terminal 100. The main locking claw 24 is provided adjacent to a lower portion of the temporary locking claw 23.
Referring to fig. 2, 6 (a) and 7, the bulging portions 25 are formed in the vicinity of the root portions of the pair of case insertion portions 22, respectively, and bulge outward from the outer surfaces of the pair of case insertion portions 22, 22 in the left-right direction. The bulging portion 25 is disposed on the proximal end side of the main locking claw 24 in the pair of housing insertion portions 22 and 22.
Referring to fig. 7, the temporary locking groove 26 is provided for positioning the retainer 20 at the temporary locking position X with respect to the housing 2. Referring to fig. 2 and 7, the temporary locking groove 26 is defined between the temporary locking claw 23 and the main locking claw 24, and is disposed on the distal end side of the main locking groove 27 in the pair of housing insertion portions 22 and 22. The temporary locking groove 26 is formed to be flush with the outer surfaces of the pair of housing insertion portions 22, 22 in the left-right direction.
Referring to fig. 7, the main engagement groove 27 is provided to position the retainer 20 at the main engagement position Y with respect to the housing 2. Referring to fig. 2 and 7, the main locking groove 27 is defined between the main locking claw 24 and the bulging portion 25, and is disposed on the proximal end side of the temporary locking groove 26 and on the distal end side of the bulging portion 25 in the pair of housing insertion portions 22 and 22. The main locking groove 27 is formed to be flush with the outer surfaces of the pair of housing insertion portions 22, 22 in the left-right direction.
[ operation of connector ]
Fig. 9 is a diagram for explaining an operation of releasing the engagement of the terminal engagement portion 5. Fig. 9 shows the same state as the connector 1 shown in fig. 4, that is, a state in which the retainer 20 is locked at the temporary locking position X with respect to the housing 2. Fig. 10 is a cross-sectional view showing a state where the terminal engaging portion 5 is disengaged from the terminal 100 in the connector 1 shown in fig. 9.
First, the terminal 100 is inserted into the housing 2 (see fig. 3) with the retainer 20 held at the temporary locking position X. At this time, the terminal engaging portion 5 is engaged with the receiving portion 103 over the annular protrusion 104 disposed on the front side of the pair of annular protrusions 104, 104 of the terminal 100. More specifically, the terminal engaging portion 5 is bent outward from the body portion 3 by abutting against the annular projection 104 when the terminal 100 is inserted, passes over the annular projection 104 in the bent state, and then is restored to be fitted into the receiving portion 103. As shown by the broken line in fig. 4, the terminal 100 inserted into the housing 2 is engaged with the terminal engaging portion 5.
At this time, since the terminal engaging portion 5 is engaged with the terminal 100, the movement of the terminal 100 in the front-rear direction with respect to the housing 2 is restricted. Since the retainer 20 is located at the temporary locking position X, the terminal engagement portion 5 is in a state of being separated from the deflection restricting portion 21 by a predetermined distance D as shown in fig. 8 (a), and thus can be deflected outward from the main body portion 3. That is, the distance D between the terminal engaging portion 5 and the flexure limiting portion 21 becomes a distance at which the terminal engaging portion 5 is reliably disengaged from the receiving portion 103. The distance D between the retainer 20 and the deflection restricting portion 21 is set to a distance that does not exceed the elastic limit of the terminal engaging portion 5 and is not excessively deflected and deformed to be damaged. Then, since the retainer 20 is held at the temporary locking position X, a part of the cantilever-shaped terminal engaging portion 5 can be visually recognized through the opening 10 (see fig. 4).
Next, the retainer 20 slides upward from below with respect to the housing 2 based on the operation of the operator, and moves from the temporary locking position X to the final locking position Y. As shown in fig. 8 (b), the retainer 20 held at the final locking position Y restricts the movement of the terminal engaging portion 5 from being deflected outward from the main body portion 3.
At this time, the lock portions 9 are locked in the lock grooves 26, and the retainer 20 is held at the final locking position Y, so that the deflection restricting portions 21 approach the terminal engaging portions 5, and the terminal engaging portions 5 are not deflected back to the outside of the body portion 3. Even if the terminal engaging portion 5 receives an unexpected external force, the terminal 100 is not disengaged from the receiving portion 103.
Next, referring to fig. 9 and 10, the operation when the terminal 100 is pulled out from the housing 2 is illustrated.
When the terminal 100 is pulled out from the housing 2, the operator first slides the retainer 20 located at the main locking position Y to the temporary locking position X in order to bring the terminal engaging portion 5 into a state where the engagement can be released from the receiving portion 103 of the terminal 100.
Next, the operator confirms the terminal engaging portion 5 inside the housing from the opening 10 that appears by moving the retainer 20 from the main locking position Y to the temporary locking position X. Then, as shown in fig. 9, the rod-like member S is inserted through the opening 10, and the pressing portion of the terminal engaging portion 5, which is confirmed in advance, is pressed downward. As shown in fig. 10, the terminal engaging portion 5 pressed downward is bent downward and disengaged from the receiving portion 103 of the terminal 100. At this time, the terminal engaging portion 5 is in contact with the deflection restricting portion 21 of the holder 20, and therefore, is not excessively deflected outward from the main body portion 3 and damaged. The terminal 100 is then pulled out of the housing 2 in a state where the engagement of the terminal engagement portion 5 is released.
Further, regarding the positional relationship between the terminal engaging portion 5 and the lock portion 9, a region in the longitudinal direction of the terminal engaging portion 5 and a region in the direction parallel to the longitudinal direction of the terminal engaging portion 5 of the lock portion 9 have at least an overlapping region when viewed from the direction perpendicular to the insertion direction of the terminal 100. By arranging the terminal engaging portion 5 and the lock portion 9 so that the above-described regions overlap, the terminal engaging portion 5 is deflected at a position close to the lock portion 9. Thus, the contact position between the deflection restricting portion 21 and the terminal engaging portion 5 is located at a position closer to the lock portion 9 in the direction parallel to the longitudinal direction of the terminal engaging portion. This can suppress the holder from generating a large force in the rotational direction. As a result, the retainer can be prevented from floating from the housing and the terminal engagement portion can be prevented from being damaged by excessive deflection.
When the terminal engaging portion 5 is disengaged from the receiving portion 103, the contact position of the terminal engaging portion 5 and the deflection restricting portion 21 in the disengaged state is set within the range of the width of the locking portion 9 in the direction parallel to the terminal insertion direction in the holder 20. In this case, the moment force about the lock portion 9 generated in the retainer 20 when the terminal engaging portion 5 abuts against the deflection restricting portion 21 can be made as small as possible. Thus, even when the disengaged terminal engaging portion 5 abuts against the holder 20, the abutting position of the terminal engaging portion 5 against the deflection limiting portion 21 is within the range of the length L in the width direction of the lock portion 9, and therefore, the holder 20 is less likely to generate a force in the rotational direction. As a result, the terminal engaging portions 5 abut against the deflection restricting portions 21, so that the retainer 20 can be prevented from being lifted from the housing 2 and the terminal engaging portions 5 can be prevented from being deflected excessively.
[ action and Effect of the present embodiment ]
According to the connector 1 of the present embodiment, the connector 1 includes the housing 2 and the holder 20. The retainer 20 is locked to the housing 2 at a temporary locking position X where the terminal 100 can be inserted and removed and a final locking position Y where the terminal 100 is held. The retainer 20 has a deflection regulating portion 21 for regulating the deflection amount of the terminal engaging portion 5 at least in a state of being locked at the temporary locking position X. The housing 2 is provided with an opening 10 on the outer peripheral surface thereof, through which at least a part of the terminal engaging portion 5 can be visually recognized from the outside. Therefore, when releasing the terminal 100 from the terminal engaging portion 5, the operator can visually recognize the pressed portion of the terminal engaging portion 5 in advance. Accordingly, the operator can easily release the engagement of the terminal engaging portion 5, and therefore, the terminal engaging portion 5 can be prevented from being excessively bent beyond the elastic limit, and the terminal can be easily removed from the housing.
Therefore, according to the connector 1 of the present embodiment, it is possible to provide the connector 1 in which the terminal engaging portion 5 can be prevented from being excessively bent and the terminal 100 can be easily detached from the housing 2.
According to the connector 1 of the present embodiment, the terminal engaging portion 5 extends in a cantilever shape, and an opening 10 for visually recognizing the terminal engaging portion 5 is provided in a direction perpendicular to the extending direction of the terminal engaging portion 5. Therefore, when releasing the engagement of the terminal engaging portion 5 from the terminal 100, an operator can easily visually confirm the pressed portion of the terminal engaging portion 5 in advance from a direction perpendicular to the extending direction of the terminal engaging portion 5. This enables the operator to reliably and easily release the engagement of the terminal engagement portion 5. Further, according to the connector 1 of the present embodiment, the opening may be provided in the width direction of the terminal engaging portion 5. This allows the terminal engaging portion 5 to be easily operated while the amount of vertical deflection is easily checked, and thus the operation of releasing the engagement can be more easily performed. As a result, the terminal engaging portion 5 can be reliably prevented from being excessively bent beyond the elastic limit.
According to the connector 1 of the present embodiment, the window-shaped opening 10 is provided in the side surface of the housing 2. Therefore, when releasing the engagement of the terminal engagement portion 5 from the terminal 100, an operator can perform an operation while confirming the deflection of the terminal engagement portion 5 through the window-shaped opening 10 provided so as to be easily visible from the side surface of the housing 2. This allows the operator to more easily release the terminal engaging portion 5 from the terminal 100. As a result, the terminal engaging portion can be more reliably prevented from being excessively bent beyond the elastic limit.
According to the connector 1 of the present embodiment, the housing 2 has the lock portion 9 capable of locking the retainer 20 at the final locking position Y. Further, a region in the longitudinal direction of the terminal engaging portion 5 and a region in the direction parallel to the longitudinal direction of the terminal engaging portion 5 of the lock portion 9 overlap each other when viewed from the direction perpendicular to the terminal insertion direction. Therefore, the terminal engaging portion 5 is deflected at a position close to the locking portion 9. Thus, the contact position of the terminal engagement portion 5 with respect to the deflection regulating portion 21 is a position relatively close to the lock portion 9 in the direction parallel to the longitudinal direction of the terminal engagement portion 5. Therefore, moment force about the lock portion 9 generated in the holder 20 when the terminal engaging portion 5 abuts against the deflection restricting portion 21 can be suppressed. Thus, even when the terminal engagement portion 5, from which the engagement is released, abuts against the flexure limiting portion 21, it is possible to suppress a large force in the rotational direction from being generated in the holder 20. As a result, when the terminal engaging portion 5 is disengaged from the terminal, the retainer 20 can be further prevented from being lifted from the housing 2 and the terminal engaging portion 5 can be prevented from being excessively bent and damaged.
According to the connector 1 of the present embodiment, in the state where the retainer 20 is locked at the final locking position Y, the opening 10 provided in the housing 2 is closed by the retainer 20. This prevents an external force from acting on the terminal engaging portion 5 in a state where the retainer 20 is locked at the final locking position Y. Further, dust and dirt can be prevented from entering the inside of the housing 2, and thus, occurrence of contact failure and abnormality of the terminal 100 can be reliably suppressed.
According to the connector 1 of the present embodiment, the position where the terminal engagement portion 5, from which engagement is released, abuts against the flexure restricting portion 21 of the retainer 20 is located within the range of the width of the lock portion 9. Therefore, the moment force about the lock portion 9 generated in the holder 20 when the terminal engaging portion 5 abuts against the deflection restricting portion 21 can be further reduced. As a result, when the terminal engaging portion 5 is disengaged from the terminal 100, the deflection restricting portion is further restricted from being pressed by the terminal engaging portion, and the retainer 20 is lifted from the housing 2 and the terminal engaging portion 5 is excessively deflected and damaged.
[ modified examples ]
The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and can be implemented with various modifications within the scope described in the claims. For example, the following modifications may be implemented.
(1) In the above-described embodiment, the embodiment in which the receiving portion 103 of the terminal 100 has the pair of annular projections 104 and 104 annularly projecting outward in the radial direction from the circumferential surface of the terminal 100 has been described, but this may not be the case. The receiving portion 103 may be configured as a hole, a groove, or the like formed in the circumferential surface of the terminal 100, for example, as long as it can be engaged with the terminal engaging portion 5.
(2) In the above-described embodiment, the holder 20 is shown as being slidable in the vertical direction with respect to the main body portion 3 of the housing 2, but this need not be the case. The holder 20 may be configured to be movable in a direction obliquely upward and downward, a front-rear direction, or the like.
(3) In the above-described embodiment, the opening 10 is provided on the side surface of the housing 2, but this may not be the case. The opening 10 may be provided on the upper surface or the lower surface of the housing 2, for example. In the above-described embodiment, the opening 10 is formed as a part of the holder attachment opening 6, but this may not be the case. The opening 10 may be formed not as a part of the holder mounting opening 6 but as a window separate from the holder mounting opening 6 in a portion of the housing 2 away from the holder mounting opening 6.
Industrial applicability
The connector with the terminal capable of being plugged and pulled can be widely applied to various purposes.
Claims (6)
1. A connector is characterized by comprising:
a housing in which the terminal is inserted and held; and
a retainer that is latched to the housing at a temporary latching position where the terminals can be inserted and removed and a final latching position where the terminals are held,
the housing has a terminal engaging portion provided to be swingable relative to a main body portion of the housing so as to engage with the terminal,
the housing is provided with an opening on an outer peripheral surface, and at least a part of the terminal engaging portion is visible from outside of the housing through the opening in a state where the retainer is locked at the temporary locking position,
the retainer has a deflection restricting portion that restricts the amount of deflection of the terminal engaging portion at least in a state where the retainer is latched at the temporary latching position, and a pair of housing insertion portions that are provided on both sides in the width direction of the deflection restricting portion and that are inserted into the inside of the housing,
the housing is provided with a retainer mounting opening into which a pair of the housing insertion portions are inserted, and the housing has a lock portion that latches the retainer with respect to the housing at the temporary latching position and the final latching position,
the opening is formed as a part of the holder mounting opening,
the locking portion is provided so as to protrude inward on the inner peripheral surface of both sides in the width direction of the main body portion of the housing,
the pair of housing insertion portions each have a temporary locking groove that is locked to the lock portion at the temporary locking position and a main locking groove that is locked to the lock portion at the main locking position,
the temporary locking groove and the permanent locking groove are provided on outer surfaces of the pair of housing insertion portions in the width direction.
2. The connector of claim 1,
the terminal clamping part extends in a cantilever shape,
the opening is provided so that the terminal engaging portion can be visually recognized from at least one direction of directions perpendicular to the terminal engaging portion that extends in a cantilever shape.
3. Connector according to claim 1 or 2,
the opening is provided in a window shape on a side surface of the housing.
4. Connector according to claim 1 or 2,
the opening is closed by the retainer in a state where the retainer is retained at the final retaining position.
5. Connector according to claim 1 or 2,
the housing has the lock portion that locks the retainer to the housing at the normal locking position and locks the retainer,
the region in the longitudinal direction of the terminal engaging portion and the region of the locking portion in the direction parallel to the longitudinal direction of the terminal engaging portion have at least an overlapping region when viewed from the direction perpendicular to the terminal insertion direction.
6. The connector of claim 5,
an abutting position at which the terminal engaging portion abuts against the deflection restricting portion in a state where the engagement is released from the terminal is within a range of a width of the locking portion in a direction parallel to the terminal insertion direction in the holder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018107791A JP7023510B2 (en) | 2018-06-05 | 2018-06-05 | connector |
| JP2018-107791 | 2018-06-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110571568A CN110571568A (en) | 2019-12-13 |
| CN110571568B true CN110571568B (en) | 2022-06-10 |
Family
ID=68773623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910461143.5A Active CN110571568B (en) | 2018-06-05 | 2019-05-30 | Connector with a locking member |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7023510B2 (en) |
| CN (1) | CN110571568B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112020007483T5 (en) | 2020-08-05 | 2023-05-17 | Mitsubishi Electric Corporation | CONTROL CENTRE |
| JP7447731B2 (en) * | 2020-08-07 | 2024-03-12 | 住友電装株式会社 | connector |
| CN113571940B (en) * | 2021-04-30 | 2023-08-11 | 安波福连接器系统(南通)有限公司 | Terminal position holder, connector and connector assembly |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06251821A (en) * | 1993-02-24 | 1994-09-09 | Yazaki Corp | Terminal unlocking structure for connector |
| JPH11111374A (en) * | 1997-10-08 | 1999-04-23 | Yazaki Corp | Connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3539672B2 (en) * | 1999-04-05 | 2004-07-07 | 矢崎総業株式会社 | Connector terminal release structure |
-
2018
- 2018-06-05 JP JP2018107791A patent/JP7023510B2/en active Active
-
2019
- 2019-05-30 CN CN201910461143.5A patent/CN110571568B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06251821A (en) * | 1993-02-24 | 1994-09-09 | Yazaki Corp | Terminal unlocking structure for connector |
| JPH11111374A (en) * | 1997-10-08 | 1999-04-23 | Yazaki Corp | Connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019212486A (en) | 2019-12-12 |
| JP7023510B2 (en) | 2022-02-22 |
| CN110571568A (en) | 2019-12-13 |
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