阅读说明：本技术 杆式连接器 (Lever-type connector ) 是由 清水徹 于 2018-09-19 设计创作，主要内容包括：通过本说明书公开的杆式连接器(10)构成为具备：阴端子(110)；阴壳体(60)；接触压力施加构件(20),从嵌合方向前方安装于阴壳体(60),能够在低接触压力位置与高接触压力位置之间移动,低接触压力位置是使阴端子(110)与阳端子(120)以低接触压力接触的位置,高接触压力位置是位于比低接触压力位置靠嵌合方向后方处且通过向阴端子(110)施加接触压力而能够使阴端子(110)与阳端子(120)以高接触压力接触的位置；杆(70),以能够移动的方式安装于阴壳体(60),在嵌合完成后使接触压力施加构件(20)从低接触压力位置向高接触压力位置移动；第一密封件(30),对接触压力施加构件(20)贯通而配置的贯通孔(67)进行防水；及第二密封件(50),对阴壳体(60)与阳壳体(130)的嵌合部分进行防水。(The lever-type connector (10) disclosed by the present specification is configured to include: a female terminal (110); a female housing (60); a contact pressure applying member (20) which is attached to the female housing (60) from the front in the fitting direction and which is movable between a low contact pressure position at which the female terminal (110) and the male terminal (120) are brought into contact with each other with a low contact pressure and a high contact pressure position at which the female terminal (110) and the male terminal (120) are brought into contact with each other with a high contact pressure by applying a contact pressure to the female terminal (110) and which is located behind the low contact pressure position in the fitting direction; a rod (70) which is movably attached to the female housing (60) and which moves the contact pressure applying member (20) from the low contact pressure position to the high contact pressure position after completion of the fitting; a first seal (30) that prevents water from penetrating a through hole (67) through which the contact pressure applying member (20) is disposed; and a second sealing member (50) which prevents water from entering the fitting portion between the female housing (60) and the male housing (130).)

1. A lever-type connector is provided with:

a female terminal capable of contacting a male terminal held by a male housing;

a female housing which accommodates the female terminal therein and is capable of fitting with the male housing;

a contact pressure applying member mounted to the female housing from the front in a fitting direction and movable between a low contact pressure position where the female terminal and the male terminal are brought into contact with each other with a low contact pressure and a high contact pressure position where the female terminal and the male terminal are brought into contact with each other with a high contact pressure by applying a contact pressure to the female terminal, the low contact pressure position being located behind the low contact pressure position in the fitting direction;

a lever movably attached to the female housing and configured to move the contact pressure applying member from the low contact pressure position to the high contact pressure position after completion of fitting;

a first seal member that seals a through hole, through which the contact pressure applying member is arranged in the female housing, from water; and

and a second sealing member that waterproofs a fitting portion of the female housing and the male housing.

2. The lever-type connector according to claim 1,

the lever has a cam groove having a fitting rail for engaging with a cam pin provided in the male housing to perform a fitting operation, and an idle rail for keeping the fitting operation in a stopped state when the lever is continuously moved after the fitting is completed.

3. The lever-type connector according to claim 1 or 2,

the lever has a driving shaft, the contact pressure applying member includes a driving portion provided with a driving rail that engages with the driving shaft to move from the low contact pressure position to the high contact pressure position, and a contact pressure applying portion that presses the female terminal to apply a contact pressure, and the driving portion is disposed through the through hole.

4. The lever-type connector according to claim 3,

the female housing has an attached portion to which the driving portion is attached, and the driving portion is accommodated between the attached portion and the rod after the fitting of the female housing and the male housing is completed.

Technical Field

The technology disclosed by this specification relates to a lever type connector.

Background

Conventionally, it is known that contact abrasion is caused by sliding contact between a male projecting piece and an elastic contact piece of a female terminal at the time of fitting of a connector, and as a connector to which a countermeasure against this is taken, a connector described in japanese patent No. 4496475 (patent document 1 below) is known. The connector has a male connector housing having a hood open to the front and a female connector housing fittable into the hood, and a flexible lock arm is provided in the female connector housing. A female terminal fitting having an elastic contact piece is housed in the female connector housing, and a contact pressure receiving portion for pressing the elastic contact piece is provided on a lower surface of the lock arm so as to protrude downward. When the female connector housing is fitted into the hood portion, the lock protrusion is brought into sliding contact with the opening of the hood portion, and the lock arm is pressed downward, so that the contact pressure receiving portion is in a state where the elastic contact piece is pressed. When the male tab enters the square tubular portion of the female terminal fitting in this state, the male tab does not contact the elastic contact piece, and therefore contact wear can be prevented.

However, in this connector, an opening portion for inserting the contact pressure receiving portion needs to be provided in the female connector housing, and if a waterproof structure is provided in the opening portion, the structure of the entire connector becomes complicated, and therefore, it is difficult to apply the connector to the waterproof connector.

As a connector capable of preventing contact abrasion and water, a connector disclosed in japanese patent application laid-open No. 2008-218331 (patent document 2) is known. The connector has a seal member that is in close contact with the cover portion of the male housing and the housing body portion of the female housing, and the seal between the male and female housings can be obtained by the seal member. A pair of protruding pieces protruding forward is provided on the inner wall portion of the male housing, and a pair of protruding portions are provided on both sides of the contact piece of the female terminal so as to protrude laterally. Immediately before the male and female housings are fitted to each other, the pair of protruding portions climb up the pair of protruding pieces, and the protruding pieces come into contact with the contact portions of the contact pieces with high contact pressure, whereby the housings and the protruding pieces are conductively connected. This can suppress contact abrasion caused by sliding contact between the protruding piece and the contact portion of the contact piece during fitting.

However, in this connector, although contact wear during fitting can be suppressed, contact wear still occurs when the male and female housings are brought into a high contact pressure state immediately before fitting, and it is difficult to say that contact wear can be suppressed.

Disclosure of Invention

Problems to be solved by the invention

As described above, the problems of patent documents 1 and 2 are not related to a connector which can be applied to a waterproof connector and can suppress contact wear.

Means for solving the problems

The lever type connector disclosed in the present specification includes: a female terminal capable of contacting a male terminal held by a male housing; a female housing which accommodates the female terminal therein and is capable of fitting with the male housing; a contact pressure applying member mounted to the female housing from the front in a fitting direction and movable between a low contact pressure position where the female terminal and the male terminal are brought into contact with each other with a low contact pressure and a high contact pressure position where the female terminal and the male terminal are brought into contact with each other with a high contact pressure by applying a contact pressure to the female terminal, the low contact pressure position being located behind the low contact pressure position in the fitting direction; a rod movably attached to the female housing, moving the male housing in a fitting direction, and moving the contact pressure applying member from the low contact pressure position to the high contact pressure position after fitting is completed; a first seal member that seals a through hole, through which the contact pressure applying member is arranged in the female housing, from water; and a second sealing member that prevents water from entering a fitting portion between the female housing and the male housing.

According to this configuration, the contact pressure applying member is in the low contact pressure position before the fitting of the male and female housings is completed, and the female terminal and the male terminal are brought into contact with each other with a low contact pressure, so that contact wear can be prevented. After the fitting of the male and female housings is completed, the female terminal and the male terminal come into contact with each other with a high contact pressure as the contact pressure applying member is moved to the high contact pressure position by the rod. During this period, the fitting operation of the male and female housings is kept stopped, and therefore, even if the state is changed from the low contact pressure state to the high contact pressure state, the contact wear can be prevented.

Further, the through hole of the female housing can be waterproofed by the first seal, and the fitting portion of the male and female housings can be waterproofed by the second seal, so that the waterproof connector can be applied.

The lever-type connector disclosed in the present specification may have the following configuration.

The following configuration may be adopted: the lever has a cam groove having a fitting rail for engaging with a cam pin provided in the male housing to perform a fitting operation, and an idle rail for keeping the fitting operation in a stopped state when the lever is continuously moved after the fitting is completed.

According to this configuration, since the cam groove has the fitting rail and the idle rail, even if the lever continues to move after the fitting of the male and female housings by the fitting rail is completed, the fitting operation does not proceed, and the male and female housings can be maintained in the fitting completed state.

The following configuration may be adopted: the lever has a driving shaft, the contact pressure applying member includes a driving portion provided with a driving rail that engages with the driving shaft to move from the low contact pressure position to the high contact pressure position, and a contact pressure applying portion that presses the female terminal to apply a contact pressure, and the driving portion is disposed through the through hole.

According to this configuration, since the driving portion is disposed at a position different from the contact pressure applying portion that presses the female terminal, the first seal can be set without being restricted by the disposition of the female terminal.

The following configuration may be adopted: the female housing has an attached portion to which the driving portion is attached, and the driving portion is accommodated between the attached portion and the rod after the fitting of the female housing and the male housing is completed.

According to this configuration, since the driving portion is accommodated between the fitted portion and the rod, the driving portion can be prevented from coming loose from the fitted portion in the middle of going from the low contact pressure position to the high contact pressure position.

Effects of the invention

According to the technique disclosed in the present specification, it is possible to provide a lever connector which can be applied to a waterproof connector, and which maintains a low contact pressure state during fitting and becomes a high contact pressure state after fitting.

Drawings

Fig. 1 is an exploded perspective view showing the components of a lever-type connector according to embodiment 1.

Fig. 2 is a perspective view of the lever type connector showing a state where the lever is at a rotation start position.

Fig. 3 is a perspective view of the lever type connector showing a state where the lever is at the rotation end position.

Fig. 4 is a front view of the lever type connector showing a state where the lever is at a rotation start position.

Fig. 5 is a sectional view taken along line a-a of fig. 4.

Fig. 6 is a front view of the lever type connector showing a state where the lever is at the rotation end position.

Fig. 7 is a sectional view taken along line B-B of fig. 6.

Fig. 8 is a plan view of the lever type connector showing a state where the lever is at the fitting completion position.

Fig. 9 is a cross-sectional view taken along line C-C of fig. 8.

Fig. 10 is a plan view of the lever type connector showing a state where the lever is at the rotation end position.

Fig. 11 is a sectional view taken along line D-D of fig. 10.

Fig. 12 is a plan view of the lever type connector in a state where the lever is detached and the contact pressure applying member is in a low contact pressure position.

Fig. 13 is a side view of the lever type connector in a state where the lever is detached and the contact pressure applying member is in a low contact pressure position.

Fig. 14 is a plan view of the lever type connector in a state where the lever is detached and the contact pressure applying member is in a high contact pressure position.

Fig. 15 is a side view of the lever type connector in a state where the lever is detached and the contact pressure applying member is in a high contact pressure position.

Fig. 16 is a top view of the rod.

Fig. 17 is a sectional view taken along line E-E of fig. 16.

Fig. 18 is a side view of the rod.

Fig. 19 is a sectional view showing a state before the male terminal is connected to the female terminal.

Fig. 20 is a sectional view showing a state where the male terminal is connected to the female terminal and the contact pressure applying member is located at the low contact pressure position.

Fig. 21 is a sectional view showing a state where the male terminal is connected to the female terminal and the contact pressure applying member is located at the high contact pressure position.

Fig. 22 is a sectional view showing a state before the male terminal is connected to the female terminal in embodiment 2.

Fig. 23 is a sectional view showing a state in which the male terminal is connected to the female terminal and the contact pressure applying member is positioned at the low contact pressure position in embodiment 2.

Fig. 24 is a sectional view showing a state in which the male terminal is connected to the female terminal and the contact pressure applying member is located at the high contact pressure position in embodiment 2.

Fig. 25 is a sectional view showing a state in which the male terminal is connected to the female terminal and the contact pressure applying member is positioned at the high contact pressure position in embodiment 3.

Fig. 26 is a perspective view showing a state in which the contact pressure applying member is moved by gear driving in embodiment 4.

Detailed Description

< embodiment 1>

Embodiment 1 will be described with reference to the drawings of fig. 1 to 21. As shown in fig. 1, the lever-type connector 10 according to embodiment 1 includes a pair of contact pressure applying members 20, a pair of first sealing members 30, a front cover 40, a second sealing member 50, a female housing 60, a lever 70, a pair of terminal covers 80, a pair of shield shells 90, a pair of terminal-equipped wires 100, and the like.

As shown in fig. 5, the terminal-equipped electric wire 100 includes a double-coated shielded electric wire 101, a female terminal 110 connected to an inner conductor constituting the shielded electric wire 101, a grommet 103 and a clamp ring 104 for clamping the outer conductor 91 constituting the shielded electric wire 101 and a rear end portion of the shield shell 90, a third seal 105 closely attached to an outer peripheral surface of an outer sheath 102 constituting the shielded electric wire 101, and a rear holder 106 for preventing the third seal from coming off.

As shown in fig. 5, the female terminal 110 includes a square tube portion 112 and a wire connection portion 114, the square tube portion 112 has an elastic contact piece 111, the wire connection portion 114 has a tube portion 113 crimped to the inner conductor of the shielded wire 101, and a metal plate constituting the square tube portion 112 is thinner and more rigid than a metal plate constituting the wire connection portion 114. The wire connecting portion 114 has a terminal connecting portion 115 inserted from the rear with respect to the square tube portion 112, and the terminal connecting portion 115 is connected to the male terminal 120 held by the male housing 130. The male terminal 120 of the present embodiment is a bus bar made of a conductive metal plate material.

The elastic contact piece 111 is formed in a mountain shape as a whole, and is cantilevered and extends forward. Specifically, the elastic contact piece 111 is provided so as to be folded back forward from the rear end of the peripheral wall portion 116 constituting the square tubular portion 112, and a gap is formed between the front end of the elastic contact piece 111 and the peripheral wall portion 116. The contact pressure applying portion 23 described later can enter from the front into the gap.

The terminal connection portion 115 is disposed to face the apex portion of the elastic contact piece 111, and has a shape bulging at 2 points in the front-rear direction. The raised portion serves as a contact portion that contacts the male terminal 120. The contact portions at the front and rear 2 positions are symmetrically arranged at the front and rear 2 positions with respect to the apex of the elastic contact piece 111.

The female terminal 110 is housed and held in the terminal cover 80, and the terminal cover 80 is housed and held in the shield case 90. The shield case 90 projects rearward from the rear end of the terminal cover 80, and is connected to the outer conductor 91 of the shield wire 101 at the projecting portion. Specifically, the shield shell 90 and the outer conductor 91 of the shield electric wire 101 are integrally pressed between a spacer ring 103 disposed on the inner periphery of the shield shell 90 and a clamp ring 104 disposed on the outer periphery of the shield shell 90. Further, the rear end of the clamp ring 104 is fixed to the sheath 102 of the shield electric wire 101.

The female housing 60 is made of synthetic resin, and includes a cover portion 61 that opens forward and a housing main body 63 that is disposed so as to penetrate through a back wall 62 of the cover portion 61, and the housing main body 63 includes a terminal cover accommodating portion 64 that accommodates the terminal cover 80 therein and a third seal accommodating portion 65 that accommodates the third seal 105 therein. The third seal 105 is in close contact with both the outer peripheral surface of the sheath 102 of the shielded electric wire 101 and the inner peripheral surface of the third seal housing portion 65, and is restricted from moving backward by the rear holder 106. This restricts entry of water into third seal housing portion 65 from behind.

A second seal mounting wall 69 into which the second seal 50 is fitted is provided around the inside of the hood 61. A front cover 40 is fitted to the front side of the second seal fitting wall 69. The front cover 40 restricts the second seal member 50 from being released forward from the second seal member fitting wall 69. When the male housing 130 enters between the cover 61 and the second seal attachment wall 69, the second seal 50 is in close contact with both the male housing 130 and the second seal attachment wall 69, and the entry of water into the second seal attachment wall 69 from between the male and female housings 60, 130 is restricted.

The lever 70 is substantially door-shaped as a whole, and as shown in fig. 16, a pair of cam plate portions 71 are connected by an operation portion 72. As shown in fig. 17, the cam plate portion 71 is provided with a cam groove 73 into which a cam pin 131 provided in the male housing 130 can enter, and the cam groove 73 is arranged in a substantially arc shape around a pivot hole 74 into which a pivot shaft 66 provided in the female housing 60 is fitted. More specifically, the cam groove 73 is composed of a fitting track 73A formed so as to approach the rotation hole 74 as it advances from the entrance portion toward the inner end, and an idle track 73B provided continuously to the fitting track 73A and having the same distance from the rotation hole 74.

As shown in fig. 17 and 18, a drive shaft 75 is provided on the cam plate portion 71 so as to protrude on the opposite side of the rotation hole 74 from the idle track 73B of the cam groove 73. The drive shaft 75 is positioned closer to the rotation hole 74 than the operation portion 72, and the drive shaft 75 of one cam plate portion 71 and the drive shaft 75 of the other cam plate portion 71 are configured to protrude toward each other.

The lever 70 is fitted rotatably with respect to the female housing 60 by fitting the pair of rotating shafts 66 from the inside to the pair of rotating holes 74. The lever 70 is rotatable from a rotation start position shown by a two-dot chain line in fig. 12 and 13 to a rotation end position shown by a two-dot chain line in fig. 14 and 15 via a fitting completion position shown in fig. 8 and 9. In the rotation start position, the cam pin 131 can be accommodated in the cam groove 73 with the entrance portion of the cam groove 73 oriented forward.

After the male and female housings 60, 130 are shallowly fitted to each other and the cam pin 131 is advanced toward the entrance portion of the cam groove 73, when the lever 70 is rotated to the fitting completion position, the cam pin 131 moves along the fitting rail 73A of the cam groove 73, and the male and female housings 60, 130 reach the fitting completion state. When the lever 70 is further rotated to the rotation end position, the cam pin 131 moves along the idle track 73B of the cam groove 73, but the fitting operation of the male and female housings 60 and 130 is not advanced, in other words, the fitting completion state is maintained.

The contact pressure applying member 20 is formed in a hook shape as a whole, and as shown in fig. 1, includes: a driving unit 22 provided with a driving rail 21 that moves in the front-rear direction by engaging with the driving shaft 75; a contact pressure applying section 23 for applying a contact pressure by pressing the elastic contact piece 111 of the female terminal 110; and a connection section 24 for connecting the driving section 22 and the contact pressure applying section 23. Both the driving portion 22 and the contact pressure applying portion 23 are disposed to protrude rearward from both side edges of the coupling portion 24 and to face each other, and the driving portion 22 is longer than the contact pressure applying portion 23.

A flange 25 is provided around the central portion of the driving portion 22 in the front-rear direction. The flange 25 has a plurality of attachment holes 26 formed therethrough, and the first seal 30 is fixed to the rear surface of the flange 25 by fitting a plurality of attachment projections 31 provided on the first seal 30 into the plurality of attachment holes 26. A driving rail 27 is provided at a rear portion of the flange 25 in the driving portion 22. The driving rail 27 extends obliquely forward from the upper edge of the driving portion 22.

As shown in fig. 5, the driving unit 22 is inserted from the front through a through hole 67 formed through the back wall 62 of the cover 61. As shown in fig. 1, the driving portion 22 projecting rearward from the back wall 62 is attached along attached portions 68 provided on both left and right sides of the outer peripheral surface of the third seal housing portion 65. The attached portion 68 includes an L-shaped guide wall 68A that guides the movement of the driving portion 22. The contact pressure applying member 20 is movable in the front-rear direction between a low contact pressure position shown in fig. 5 and a high contact pressure position shown in fig. 7. Further, the flange 25 of the contact pressure applying member 20 is accommodated between the outer peripheral surface of the terminal cover accommodating portion 64 and the inner peripheral surface of the second seal fitting wall 69. The first seal 30 is in close contact with both the outer peripheral surface of the terminal cover accommodating portion 64 and the outer peripheral surface of the second seal attachment wall 69. Thus, even if water enters the cover 61 from the through hole 67, the first seal 30 prevents the water from entering.

As shown in fig. 9, when the lever 70 is at the fitting completion position and the contact pressure applying member 20 is at the low contact pressure position, the drive shaft 75 slightly enters the entrance portion of the drive rail 21 of the contact pressure applying member 20. When the lever 70 is rotated to the rotation end position from here, the drive shaft 75 moves along the drive rail 21 to draw the drive portion 22 rearward, and as shown in fig. 11, the contact pressure applying member 20 reaches the high contact pressure position.

As shown in fig. 7 and 14, in the high contact pressure position, the driving portion 22 is accommodated between the fitted portion 68 and the rod 70, and therefore the contact pressure applying member 20 can be prevented from being released from the female housing 60 by being deformed to expand outward. While the lever 70 is rotated from the fitting completion position to the rotation completion position, the cam pin 131 of the male housing 130 moves along the idle track 73B of the cam groove 73, and therefore the fitting operation of the male and female housings 60, 130 is not advanced.

As shown in fig. 2, a contact pressure applying portion insertion hole 81 into which the contact pressure applying portion 23 is inserted from the front and a male terminal insertion hole 82 into which the male terminal 120 is inserted from the front are provided at the front end portion of the terminal cover 80. In the low contact pressure position, as shown in fig. 5, the tip end of the contact pressure applying portion 23 enters the back side (the side opposite to the terminal connecting portion 115) of the elastic contact piece 111 through the contact pressure applying portion insertion hole 81. In the high contact pressure position, as shown in fig. 7, the contact pressure applying portion 23 pushes the elastic contact piece 111 toward the terminal connecting portion 115 while making sliding contact with the distal end portion of the elastic contact piece 111 toward the rear side, so that the elastic contact piece 111 is pushed toward the terminal connecting portion 115 by the contact pressure applying portion 23.

Specifically, as shown in fig. 19, when the male terminal 120 enters between the elastic contact piece 111 and the terminal connection portion 115 through the male terminal insertion hole 82 in a state where the contact pressure applying portion 23 is at the low contact pressure position, the male terminal 120 comes into contact with the terminal connection portion 115 in a low contact pressure state by the spring force of the elastic contact piece 111 as shown in fig. 20. Therefore, the male terminal 120 and the terminal connecting portion 115 do not cause contact abrasion, and the foreign matter removal effect by the wiping effect is exhibited. As shown in fig. 21, in a state where the contact pressure applying portion 23 is at the high contact pressure position, the male terminal 120 is brought into contact with the terminal connecting portion 115 in the high contact pressure state by the pressing force from the contact pressure applying portion 23 via the elastic contact piece 111. Thus, since a high contact pressure can be applied to the male terminal 120 and the terminal connecting portion 115 in a state where the fitting operation of the male and female housings 60 and 130 is completely stopped, contact resistance can be reduced by the high contact pressure without causing contact abrasion.

As described above, in the present embodiment, the contact pressure applying member 20 is in the low contact pressure position before the fitting of the male and female housings 60 and 130 is completed, and the female terminal 110 and the male terminal 120 are in contact with each other at a low contact pressure, so that contact wear can be prevented. After the fitting of the male and female housings 60, 130 is completed, the female terminal 110 and the male terminal 120 come into contact with each other with a high contact pressure as the contact pressure applying member 20 is moved to the high contact pressure position by the rod 70. During this period, the fitting operation of the male and female housings 60 and 130 is stopped, and therefore, even if the state is changed from the low contact pressure state to the high contact pressure state, the contact wear can be prevented.

Further, the through hole 67 of the female housing 60 can be waterproofed by the first seal 30, and the fitting portion of the male and female housings 60 and 130 can be waterproofed by the second seal 50, so that the waterproof connector can be applied.

The following configuration may be adopted: the lever 70 has a cam groove 73, and the cam groove 73 has a fitting rail 73A for engaging with a cam pin 131 provided in the male housing 130 to perform a fitting operation, and an idle rail 73B for keeping the fitting operation in a stopped state when the lever 70 is continuously moved after the fitting is completed.

According to this configuration, since the cam groove 73 has the fitting rail 73A and the idle rail 73B, even if the lever 70 is continuously moved after the fitting of the male and female housings 60 and 130 by the fitting rail 73A is completed, the fitting operation does not advance, and the male and female housings 60 and 130 can be maintained in the fitting completed state.

The following configuration may be adopted: the lever 70 has a drive shaft 75, the contact pressure applying member 20 has a drive portion 22 provided with a drive rail 21, and a contact pressure applying portion 23 that presses the female terminal 110 to apply a contact pressure, the drive rail 21 is engaged with the drive shaft 75 to move from a low contact pressure position to a high contact pressure position, and the drive portion 22 is disposed through the through hole 67.

According to such a configuration, since the driving portion 22 is disposed at a position different from the contact pressure applying portion 23 which presses the female terminal 110, the first seal 30 can be set without being restricted by the disposition of the female terminal 110.

The following configuration may be adopted: the female housing 60 has a fitted portion 68 to which the driving portion 22 is fitted, and after the fitting of the female housing 60 and the male housing 130 is completed, the driving portion 22 is accommodated between the fitted portion 68 and the rod 70.

According to such a configuration, since the driving portion 22 is accommodated between the fitted portion 68 and the rod 70, the driving portion 22 can be prevented from coming loose from the fitted portion 68 halfway from the low contact pressure position to the high contact pressure position.

< embodiment 2>

Next, embodiment 2 will be described with reference to fig. 22 to 24. The lever-type connector 200 of the present embodiment is the same as the lever-type connector 10 of embodiment 1 except for the configuration of the female terminal 110, and therefore the same reference numerals as those of embodiment 1 are used, and the description thereof is omitted.

As shown in fig. 22, the female terminal 210 of the present embodiment includes a terminal body 211 and a secondary spring 212, and the terminal body 211 includes a bottom wall 213, a primary spring 214 disposed opposite to the bottom wall 213, and a pair of connecting walls 215 connecting the bottom wall 213 and the primary spring 214. The primary spring 214 is formed such that the front end of the primary spring 214 and the front end of the bottom wall 213 are positioned substantially in alignment in the front-rear direction as the primary spring approaches the bottom wall 213 from the front edge of the base end portion that spans the upper edges of the pair of connecting walls 215 toward the front.

The secondary spring 212 is in a square cylindrical shape, and is disposed so as to surround the vicinity of the tip of the primary spring 214 and the vicinity of the tip of the bottom wall 213 over the entire circumference. A projection 216 is provided on an opposing wall portion of the secondary spring 212 that opposes the primary spring 214. The distance separating the front end of the primary spring 214 from the bottom wall 213 is smaller than the plate thickness of the male terminal 220. However, since the tapered portion 221 for drawing is provided at the tip of the male terminal 220, the male terminal 220 can be smoothly inserted between the bottom wall 213 and the primary spring 214. As shown in fig. 23, when the male terminal 220 enters between the bottom wall 213 and the primary spring 214 in a state where the contact pressure applying portion 23 is located at the low contact pressure position, the primary spring 214 deflects to generate a contact pressure. Therefore, the male terminal 220 and the female terminal 210 are in contact with each other in a contact pressure state, and the foreign matter removal effect by the wiping effect is exhibited without causing contact abrasion.

Since the taper portion 231 for introduction is provided at the tip of the contact pressure applying portion 230, the contact pressure applying portion 230 can be smoothly inserted between the secondary spring 212 and the primary spring 214, and the contact pressure can be slowly applied to the primary spring 214. As shown in fig. 24, when the contact pressure applying portion 230 is moved from the low contact pressure position to the high contact pressure position, the contact pressure applying portion 230 is pressed between the protrusion 216 and the primary spring 214, and the primary spring 214 is pressed toward the bottom wall 213 by the contact pressure applying portion 230. In this state, the male terminal 220 is brought into contact with the bottom wall 213 in a high contact pressure state by the pressing force from the contact pressure applying portion 230 via the primary spring 214. Thus, since a high contact pressure can be applied to the male terminal 220 and the female terminal 210 in a state where the fitting operation of the male and female housings 60 and 130 is completely stopped, contact resistance can be reduced by a high contact pressure without causing contact abrasion.

< embodiment 3>

Next, embodiment 3 will be described with reference to fig. 25. The lever-type connector 300 of the present embodiment is the same as the lever-type connector 10 of embodiment 1 except for the structure of the contact pressure applying portion 23, and therefore the same reference numerals as those of embodiment 1 are used, and the description thereof is omitted.

The contact pressure applying portion 310 of the present embodiment includes a shaft portion 311 made of synthetic resin and a pin 312 made of metal. The pin 312 is formed to be contacted by the tip end portion of the elastic contact piece 111 in a region from the low contact pressure position to the high contact pressure position.

Further, while the tip end portion of the elastic contact piece 111 is in sliding contact with the pin 312 with a strong force while the contact pressure applying portion 310 is moving from the low contact pressure position to the high contact pressure position, the pin 312 is made of metal, and therefore, even when the contact pressure applying portion 310 is repeatedly inserted and removed, the pin is not worn like resin, and even when a strong force is received from the elastic contact piece 111 for a long time in the high contact pressure position, the pin is not deformed like resin due to compression creep. Therefore, a decrease in contact pressure due to wear and compression creep deformation can be prevented.

< embodiment 4>

Next, embodiment 4 will be described with reference to fig. 26. The lever-type connector 400 of the present embodiment changes the driving method of the contact pressure applying member 20 of the lever-type connector 10 of embodiment 1 from the cam mechanism to the gear driving of the rack and pinion pair, and has the same configuration as that of embodiment 1, and therefore the same reference numerals are used as those of embodiment 1, and the description thereof will be omitted.

The contact pressure applying member 410 of the present embodiment has a driving portion 412 provided with a driving gear 411 in place of the driving rail 21. The drive gear 411 extends straight. On the other hand, the lever 420 has a rotating shaft 422 provided with a pinion 421 on the outer periphery. The driving gear 411 and the pinion 421 are engaged with each other, and the contact pressure applying member 410 can be moved in the front-rear direction by rotating the lever 420.

< other embodiment >

The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings, and includes various embodiments as follows, for example.

(1) In the above embodiment, the cam groove 73 is provided in the lever 70 and the cam pin 131 is provided in the male housing 130, but the cam pin may be provided in the lever and the cam groove may be provided in the male housing.

(2) In the above embodiment, the driving shaft 75 is provided on the lever 70 and the driving rail 21 is provided on the contact pressure applying member 20, but the driving rail may be provided on the lever and the driving shaft may be provided on the contact pressure applying member.

(3) In the above embodiment, the contact pressure applying member 20 in which the driving portion 22 and the contact pressure applying portion 23 are provided at different positions via the connecting portion 24 has been exemplified, but a contact pressure applying member in which the driving portion and the contact pressure applying portion are integrally provided in a continuous manner may be used.

(4) In the above embodiment, the driving portion 22 is accommodated between the attached portion 68 and the rod 70 after the fitting of the male and female housings 60 and 130 is completed, but the driving portion may be exposed to the outside at the attached portion.

(5) In the above embodiment, the rotary lever 70 is used, but a slide lever may be used.

(6) In the above embodiment, the box-shaped female terminal 110 having the square tube portion 112 is used, but a cylindrical female terminal may be used.

(7) In the above embodiment, the first seal 30 is fitted to the flange 25 of the contact pressure applying member 20, but the first seal 30 may be fitted to the opening edge portion of the through hole 67 of the female housing 60.

(8) In embodiments 1 to 3, the operation of fitting and removing the male housing 130 and the driving of the contact pressure applying member are performed by the rotation of the lever 70, but only the driving of the contact pressure applying member may be performed by the rotation of the lever, as in embodiment 4.

Description of the reference symbols

10. 200, 300, 400 … lever type connector

20. 410 … contact pressure applying member

21 … track for driving

22. 412 … drive part

23. 230, 310 … contact pressure applying part

30 … first seal

50 … second seal

60 … female housing

67 … through hole

68 … mounted part

70. 420 … Bar

73 … cam groove

73A … rail for fitting

73B … idle running rail

75 … drive shaft

110. 210 … female terminal

120. 220 … male terminal

130 … Male housing

131 … cam pin.