Connector Assembly

The connector assembly addresses the central positioning issue of the locking arm by using a locking arm with a contact portion and strategic wall configurations to ensure secure engagement and prevent terminal contact while managing size and insulation.

JP2026110855APending Publication Date: 2026-07-02SUMITOMO WIRING SYSTEMS LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
SUMITOMO WIRING SYSTEMS LTD
Filing Date
2026-04-30
Publication Date
2026-07-02

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Abstract

In a connector assembly, the placement of the locking arm can become problematic if it cannot be positioned in the center of the width direction within the second housing. [Solution] The connector assembly 11 comprises a first connector 21 and a second connector 31. The first connector 21 has a first housing 22 and a first terminal 23, and the second connector 31 has a second housing 32 and a second terminal 33. The first housing 22 has a locking portion 26 and a contact portion 27. The second housing 32 is provided with a locking arm 36 that engages with the locking portion 26. The first housing 22 has a separation wall 24 positioned between two first terminals 23 provided in the width direction, the second housing 32 has a separation groove 34 into which the separation wall 24 is inserted when fitted into the first housing 22, and the locking arm 36 is provided on the first width direction side of the separation groove 34.
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Description

Technical Field

[0001] The present disclosure relates to a connector assembly.

Background Art

[0002] Conventionally, as a connector assembly including a first connector and a second connector, there is one that prevents so-called kinking (see, for example, Patent Document 1). The first connector has a first housing and a first terminal held in the first housing. The second connector has a second housing that can be inserted into the first housing and a second terminal held in the second housing. And the second housing is provided with a lock arm that is locked to the locked portion of the first housing when inserted into the first housing. Specifically, the lock arm is provided at the center in the width direction in the second housing. The lock arm has a protruding portion that protrudes in the height direction from the second housing, an extending portion that extends from the protruding portion toward the rear end of the second housing, and a locking claw that protrudes in the height direction of the second housing from the extending portion. The lock arm is configured to be able to bend the extending portion. And the lock arm is configured to be able to lock the locking claw to the locked portion. Also, a pair of guide protrusions are provided on the first housing, and fitting grooves into which the guide protrusions fit are provided on both sides of the lock arm on the outer wall of the second housing. And a contact projection bar that extends outward in the width direction is provided on the guide protrusion, and a slide engagement groove corresponding to the contact projection is provided on the second housing. Thereby, when the second housing is relatively moved in an inclined state with respect to the first housing, the contact projection hits the outer wall of the second housing without fitting into the slide engagement groove, thereby preventing contact of the second housing with the first terminal. In such a connector assembly, it is possible to suppress a situation where the first terminal is deformed due to contact of the second housing with the first terminal.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

[0004] Incidentally, in the connector assembly described above, the locking arm may not be able to be located in the center of the second housing in the width direction. In such cases, the placement of the locking arm can become a problem. [Means for solving the problem]

[0005] The connector assembly of the present disclosure comprises a first connector and a second connector, wherein the first connector has a first housing and a first terminal held within the first housing, the second connector has a second housing that can be fitted into the first housing and a second terminal held within the second housing and connectable to the first terminal, the first housing has a locking portion and a contact portion, the second housing is provided with a locking arm that engages with the locking portion when fitted into the first housing, and the locking arm is provided with the second housing being connected to the first housing A contact portion is provided that, when moved relative to the second housing in an inclined state with respect to the r, contacts the contact portion to prevent the second housing from contacting the first terminal, the lock arm is provided in the second housing closer to the first width direction, which is one direction in the width direction, two first terminals are provided in the width direction of the first housing, the first housing has a separation wall positioned between the two first terminals provided in the width direction, the second housing has a separation groove into which the separation wall is inserted when fitted into the first housing, and the lock arm is provided on the first width direction side of the separation groove. [Effects of the Invention]

[0006] According to the connector assembly of this disclosure, the locking arm can be secured to the locking portion by positioning it on the first widthwise side of the separation groove. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a perspective view of a connector assembly in one embodiment. [Figure 2] Figure 2 is an exploded perspective view of a connector assembly in one embodiment. [Figure 3] Figure 3 is a front view of a connector assembly in one embodiment. [Figure 4] Figure 4 is a front view of the first connector in one embodiment. [Figure 5] Figure 5 is a perspective view of the second connector in one embodiment. [Figure 6] Figure 6 is a side view of the second connector in one embodiment. [Figure 7] Figure 7 is a cross-sectional view along line 7-7 in Figure 3. [Figure 8] Figure 8 is a cross-sectional view illustrating the operation of a connector assembly in one embodiment. [Figure 9] Figure 9 is a cross-sectional view illustrating the operation of a connector assembly in one embodiment. [Modes for carrying out the invention]

[0008] [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described. The connector assembly disclosed herein is [1] A connector assembly comprising a first connector and a second connector, wherein the first connector has a first housing and a first terminal held within the first housing, the second connector has a second housing that can be fitted into the first housing and a second terminal held within the second housing and connectable to the first terminal, the first housing has a locking portion and a contact portion, the second housing is provided with a locking arm that engages with the locking portion when fitted into the first housing, the locking arm is provided with a contact portion that contacts the contact portion when the second housing is moved relative to the first housing in an inclined state, thereby preventing the second housing from contacting the first terminal, the locking arm is provided in the second housing closer to a first width direction which is one direction in the width direction, and the contact portion protrudes in the locking arm in a second width direction which is the opposite direction to the first width direction.

[0009] According to this configuration, the lock arm is provided with a contact portion that contacts the contact portion when the second housing is moved relative to the first housing in an inclined state, thereby preventing contact between the second housing and the first terminal, and thus protecting the first terminal. Furthermore, the lock arm is provided in the second housing closer to the first width direction, and the contact portion protrudes in the second width direction, which is the opposite direction to the first width direction, on the lock arm, thus suppressing an increase in size. In other words, if the lock arm is provided in the second housing closer to the first width direction and the contact portion protrudes in the first width direction on the lock arm, there is a risk that the connector assembly will become larger in the first width direction, but this increase in size can be suppressed.

[0010] [2] In the above [1], the lock arm has a projection that protrudes in the height direction of the second housing from the tip that is fitted into the first housing in the second housing, an extension that extends from the top of the projection toward the rear end of the second housing, and a locking claw that protrudes from the extension in the height direction of the second housing and can engage with the locked portion, and the contact portion may be provided from the end of the projection that is toward the tip of the second housing.

[0011] According to this configuration, since the contact portion is provided from the end of the second housing in the tip direction of the protruding portion of the lock arm, even if the second housing is to be inserted in an inclined state relative to the first housing, it will come into contact with the contact portion in the initial stage. Therefore, even if the distance from the opening of the first housing to the first terminal is shortened, contact of the second housing to the first terminal can be prevented. Thus, an increase in the size of the connector assembly can be suppressed.

[0012] [3] In the above [2], the contact portion may be provided from the end of the second housing in the tip direction of the protruding portion to the extended portion. According to this configuration, the contact portion is provided from the tip end of the second housing in the protruding portion to the extended portion, so that, for example, the strength of the base of the extended portion can be increased. Therefore, for example, damage to the base when the extended portion is bent can be suppressed.

[0013] [4] In the above [2] or [3], the end face of the protruding portion in the direction of the tip of the second housing and the top face of the protruding portion may be connected by a chamfered portion. According to this configuration, the end face of the second housing in the tip direction of the protruding portion and the top face of the protruding portion are connected by a chamfered portion, so that the second housing can be smoothly fitted into the first housing.

[0014] [5] In any one of the above [1] to [4], the contact portion may be set to prevent contact of the lock arm with the first terminal of the second housing even when the lock arm is bent.

[0015] According to this configuration, since the contact portion is set to prevent contact of the lock arm with the first terminal of the second housing even when the lock arm is bent, for example, the first terminal is protected even when a force is applied to bend the lock arm.

[0016] [6] In any one of the above [1] to [5], two first terminals are provided in the width direction of the first housing, the first housing has a separation wall disposed between the two first terminals provided in the width direction, the second housing has a separation groove into which the separation wall is inserted in a state of being inserted into the first housing, and the lock arm may be provided on the first width direction side of the separation groove.

[0017] According to this configuration, since the first housing has a separation wall disposed between the two first terminals provided in the width direction, the insulation between the two first terminals provided in the width direction can be kept high. Further, since the second housing has a separation groove into which the separation wall is inserted in a state of being inserted into the first housing, it can be inserted into the first housing while avoiding the separation wall. And in such a second housing, although the lock arm cannot be provided at the center in the width direction of the second housing by the separation groove, it can be locked to the locked portion by providing it on the first width direction side of the separation groove. In such a connector assembly, since the contact portion protrudes in the second width direction of the lock arm, the size increase is suppressed.

[0018] [7] In the above [6], two first terminals are provided in the height direction of the first housing, the separation wall has an auxiliary wall extending in the width direction toward between the two first terminals provided in the height direction, and the second housing may have an auxiliary groove into which the auxiliary wall is inserted in a state of being inserted into the first housing.

[0019] In this configuration, the separation wall has an auxiliary wall extending in the width direction toward the space between the two first terminals provided in the height direction, and the second housing has an auxiliary groove into which the auxiliary wall is inserted. Therefore, contact between the second housing and the first terminals can also be prevented by the auxiliary wall and the auxiliary groove. In other words, in a configuration in which two first terminals are provided in the height direction of the first housing, the opening of the first housing becomes larger in the height direction. Therefore, in a configuration without an auxiliary wall and auxiliary groove, the second housing is more likely to be inserted all the way in at an inclined angle relative to the first housing, but this can be prevented by the auxiliary wall and auxiliary groove. Therefore, even if the distance from the opening of the first housing to the first terminal is shortened, contact between the second housing and the first terminal can be prevented. Therefore, the size of the connector assembly can be suppressed.

[0020] [Details of the embodiments of this disclosure] Specific examples of the connector assemblies of this disclosure are described below with reference to the drawings. In each drawing, some parts of the configuration may be exaggerated or simplified for ease of explanation. Also, the dimensional ratios of each part may differ in each drawing. In this specification, "parallel," "orthogonal," and "circular" include not only cases where they are strictly parallel, orthogonal, or circular, but also cases where they are approximately parallel, orthogonal, or circular within the range that produces the effects of this embodiment. The present invention is not limited to these examples, but is shown in the claims, and all modifications within the meaning and scope of equivalence to the claims are intended.

[0021] (Configuration of connector assembly 11) As shown in Figures 1 and 2, the connector assembly 11 comprises a first connector 21 and a second connector 31 that can be connected by relative movement to the first connector 21 in a first connection / disconnection direction X1 along the first axis X. The connector assembly 11 is interposed, for example, in a path that electrically connects in-vehicle equipment installed in a vehicle. The figures show a first axis X, a second axis Y perpendicular to the first axis X, and a third axis Z perpendicular to both the first axis X and the second axis Y. The figures also show a first connection / disconnection direction X1, which is one direction along the first axis X, and a second connection / disconnection direction X2, which is the other direction along the first axis X and opposite to the first connection / disconnection direction X1. Furthermore, the figure illustrates the first width direction Y1, which is one direction in the width direction along the second axis Y, and the second width direction Y2, which is the other direction in the width direction along the second axis Y and is opposite to the first width direction Y1.

[0022] (Configuration of the first connector 21) As shown in Figures 1 to 4, the first connector 21 has a first housing 22 and a first terminal 23 held within the first housing 22.

[0023] The first housing 22 is made of an insulating resin material. As shown in Figures 2, 7 to 9, the first housing 22 is formed in a rectangular tubular shape and has an opening 22a that opens in the second attachment / detachment direction X2. The first housing 22 also has a closed portion 22b at the end in the first attachment / detachment direction X1. The first terminal 23 is held in the closed portion 22b. The first terminal 23 is a long metal plate and is a male terminal. The first terminal 23 is embedded in the closed portion 22b by insert molding. The first terminal 23 is provided so as to extend along the first axis X and penetrate the closed portion 22b.

[0024] As shown in Figure 4, two first terminals 23 are provided in the first housing 22 in the height direction along the third axis Z. In addition, two first terminals 23 are provided in the first housing 22 in the width direction along the second axis Y. In other words, four first terminals 23 are provided in the first housing 22.

[0025] (Detailed configuration of Housing 1, Unit 22) As shown in Figures 2 and 4, the first housing 22 has a separation wall 24 positioned between two first terminals 23 provided in the width direction. The separation wall 24 is located at the center of the first housing 22 in the width direction. The separation wall 24 extends over the entire height direction of the first housing 22, from the bottom wall 22c to the top wall 22d of the first housing 22. The separation wall 24 extends over the entire length direction of the first housing 22, from the opening 22a to the closing portion 22b of the first housing 22.

[0026] Furthermore, the separation wall 24 has an auxiliary wall 25 that extends in the width direction toward the space between the two first terminals 23 provided in the height direction. The auxiliary wall 25 is provided in pairs, extending from the separation wall 24 in both the width direction. The auxiliary wall 25 is provided from the separation wall 24 to an intermediate position between the side wall 22e of the first housing 22.

[0027] Furthermore, as shown in Figures 1 and 7, the first housing 22 has a locking portion 26. The locking portion 26 is provided on the upper wall 22d of the first housing 22. The locking portion 26 is formed by providing a through hole 22f in the upper wall 22d and has a surface that can engage in the second attachment / detachment direction X2.

[0028] Furthermore, as shown in Figures 1 to 4, the first housing 22 has a contact portion 27. The contact portion 27 is provided on the separation wall 24. The contact portion 27 is provided between the auxiliary wall 25 and the upper wall 22d, extending from the separation wall 24 in a first width direction Y1, which is one direction in the width direction. The contact portion 27 extends in the first width direction Y1 with a length smaller than that of the auxiliary wall 25.

[0029] Furthermore, the first housing 22 has a symmetrical extension 28 that is paired with the contact portion 27. The symmetrical extension 28 is formed symmetrically with respect to the contact portion 27 with respect to the separation wall 24. That is, the symmetrical extension 28 is provided on the separation wall 24. The symmetrical extension 28 is provided between the auxiliary wall 25 and the upper wall 22d, extending from the separation wall 24 in the second width direction Y2, which is the opposite direction to the first width direction Y1. The symmetrical extension 28 extends in the second width direction Y2 with a length smaller than that of the auxiliary wall 25.

[0030] (Configuration of the second connector 31) As shown in Figures 1 and 2, the second connector 31 has a second housing 32 that can be fitted into the first housing 22 by moving relative to it in a first attachment / detachment direction X1 along the first axis X, and a second terminal 33 that is held within the second housing 32 and can be connected to the first terminal 23.

[0031] The second housing 32 is made of an insulating resin material. As shown in Figures 2 and 5, the second housing 32 is formed in a rectangular prism shape that can be fitted into the first housing 22. In the second housing 32, the second terminal 33 is held at a position corresponding to the first terminal 23.

[0032] Specifically, as shown in Figure 5, two second terminals 33 are provided in the second housing 32 in the height direction along the third axis Z. Additionally, two second terminals 33 are provided in the second housing 32 in the width direction along the second axis Y. In other words, four second terminals 33 are provided in the second housing 32.

[0033] The second terminal 33 is a female terminal made by bending a metal plate. Specifically, in the second housing 32, a housing hole 32a (see Figure 2) is provided at a position corresponding to the first terminal 23. The second terminal 33 is housed and held in the housing hole 32a. The second terminal 33 is connected to the first terminal 23 by mating with the first terminal 23 when the second housing 32 is fitted into the first housing 22. Vehicle-mounted equipment is connected to the first terminal 23 and the second terminal 33 via terminals, wires, etc., which are not shown.

[0034] (Detailed configuration of Housing 2, Unit 32) The second housing 32 has a separation groove 34 into which the separation wall 24 is inserted when fitted into the first housing 22. The separation groove 34 is located at the center of the second housing 32 in the width direction. The separation groove 34 extends over the entire height direction of the second housing 32, from the lower surface 32b to the upper surface 32c. The separation groove 34 is recessed in the second housing 32 from the end in the first insertion / removal direction X1 toward the second insertion / removal direction X2. In other words, the separation groove 34 is recessed in the second housing 32 from the front end that is fitted into the first housing 22 toward the rear end.

[0035] Furthermore, the second housing 32 has an auxiliary groove 35 into which the auxiliary wall 25 is inserted when fitted into the first housing 22. A pair of auxiliary grooves 35 are provided extending in both the width direction from the separation groove 34. The auxiliary grooves 35 are recessed in the second housing 32 from the front end that is fitted into the first housing 22 to the rear end, to the same position as the separation groove 34.

[0036] Furthermore, as shown in Figures 1 and 7, the second housing 32 is provided with a locking arm 36 that engages with the locking portion 26 when fitted into the first housing 22. The lock arm 36 is provided in the second housing 32, closer to the first width direction Y1, which is one direction in the width direction. In this embodiment, the lock arm 36 is provided closer to the first width direction Y1 than the separation groove 34.

[0037] As shown in Figures 5 and 6, the lock arm 36 has a projection 36a, an extension 36b, a locking claw 36c, and an operating part 36d. The projection 36a protrudes in the height direction of the second housing 32 from the tip that is fitted into the first housing 22 in the second housing 32. The projection 36a protrudes from the upper surface 32c of the second housing 32. The end face of the projection 36a in the tip direction of the second housing 32 and the top surface of the projection 36a are connected by a chamfered portion 36e. The chamfered portion 36e in this embodiment is a curved surface. The extension 36b extends from the top of the projection 36a toward the rear end of the second housing 32, allowing it to bend in the height direction of the second housing 32. The locking claw 36c protrudes in the height direction of the second housing 32 from the middle part of the extension 36b and is capable of locking onto the locking portion 26 (see Figures 1 and 7). The operating section 36d protrudes in both widthwise directions from both sides of the tip of the extended section 36b, and also protrudes in the height direction of the second housing 32. In this embodiment, the second housing 32 is provided near the operating section 36d, with a pair of protective walls 37 protruding from the upper surface 32c of the second housing 32 in the height direction of the second housing 32 to prevent unintended pressing of the operating section 36d.

[0038] As shown in Figure 8, the lock arm 36 is provided with a contact portion 38 that contacts the contact portion 27 when the second housing 32 is moved relative to the first housing 22 in an inclined state, thereby preventing the second housing 32 from contacting the first terminal 23. In other words, the contact portion 38 is provided so as to prevent the second housing 32 from going too far into the first housing 22 by contacting the contact portion 27 even when the second housing 32 is to be inserted into the first housing 22 in an inclined state.

[0039] As shown in Figures 3 and 5, the contact portion 38 protrudes from the lock arm 36 in the second width direction Y2, which is the opposite direction to the first width direction Y1. As shown in Figures 5 and 6, the contact portion 38 is provided from the end of the second housing 32 in the tip direction of the protruding portion 36a, in other words, from the end in the first attachment / detachment direction X1. Furthermore, the contact portion 38 is provided from the end of the second housing 32 in the tip direction of the protruding portion 36a to the extended portion 36b. That is, the contact portion 38 is provided to also function as a reinforcing rib to increase the strength of the base of the extended portion 36b.

[0040] Furthermore, as shown in Figure 9, the contact portion 38 is configured to contact the contacted portion 27 even when the lock arm 36 is bent, more specifically when the extended portion 36b is bent, thereby preventing contact between the second housing 32 and the first terminal 23. In other words, the contact portion 38 provided on the lock arm 36 is configured so that even when the lock arm 36 bends, which can cause the second housing 32 to easily slide further into the first housing 22, the second housing 32 does not come into contact with the first terminal 23.

[0041] As shown in Figure 7, when the second housing 32 is in a non-inclined state and not inclined relative to the first housing 22, the contact portion 38 is inserted between the contacted portion 27 and the upper wall 22d, thereby allowing the second housing 32 to be fitted into the first housing 22.

[0042] Next, the operation of the connector assembly 11 configured as described above will be explained. As shown in Figures 8 and 9, in the connector assembly 11, when inserting the second housing 32 into the first housing 22, for example when visual inspection is difficult, the second housing 32 may be in an inclined state relative to the first housing 22.

[0043] In such a case, the contact portion 38 comes into contact with the contacted portion 27, which restricts further insertion of the second housing 32 into the first housing 22. This prevents the second housing 32 from contacting the first terminal 23, thereby suppressing deformation of the first terminal 23.

[0044] Next, the effects of the above embodiment are described below. (1) The lock arm 36 is provided with a contact portion 38 that contacts the contact portion 27 when the second housing 32 is moved relative to the first housing 22 in an inclined state, thereby preventing contact of the first terminal 23 of the second housing 32, and thus protecting the first terminal 23. Furthermore, the lock arm 36 is provided on the second housing 32 closer to the first width direction Y1, and the contact portion 38 protrudes on the lock arm 36 in the second width direction Y2, which is the opposite direction to the first width direction Y1, thus suppressing an increase in size. In other words, if the lock arm 36 is provided on the second housing 32 closer to the first width direction Y1, and the contact portion 38 protrudes further in the first width direction Y1 on the lock arm 36, there is a risk that the connector assembly 11 will become larger in the first width direction Y1. In contrast, in this embodiment, the contact portion 38 protrudes in the second width direction Y2, which is the opposite direction to the first width direction Y1, in the lock arm 36, thereby suppressing an increase in the size of the connector assembly 11.

[0045] (2) Since the contact portion 38 is provided from the end of the second housing 32 in the tip direction of the protruding portion 36a of the lock arm 36, even if the second housing 32 is to be fitted into the first housing 22 in an inclined state, it will come into contact with the contacted portion 27 in the initial stage. Therefore, even if the distance from the opening 22a of the first housing 22 to the first terminal 23 is shortened, contact of the second housing 32 with the first terminal 23 can be prevented. Thus, the size of the connector assembly 11 can be suppressed.

[0046] (3) Since the contact portion 38 is provided from the tip end of the second housing 32 in the projection portion 36a to the extension portion 36b, for example, the strength of the base of the extension portion 36b can be increased. Therefore, for example, damage to the base when the extension portion 36b is bent can be suppressed.

[0047] (4) The end face of the second housing 32 in the tip direction of the protruding portion 36a and the top face of the protruding portion 36a are connected by the chamfered portion 36e, so that the second housing 32 can be smoothly fitted into the first housing 22.

[0048] (5) The contact portion 38 is set to prevent contact with the first terminal 23 of the second housing 32 even when the lock arm 36 is bent, so that the first terminal 23 is protected even if a force is applied that causes the lock arm 36 to bend.

[0049] (6) The first housing 22 has a separation wall 24 positioned between the two first terminals 23 provided in the width direction, so that the insulation between the two first terminals 23 provided in the width direction can be kept at a high level. The second housing 32 has a separation groove 34 into which the separation wall 24 is inserted when the second housing 32 is fitted into the first housing 22, so that it can be fitted into the first housing 22 while avoiding the separation wall 24. In such a second housing 32, the separation groove 34 prevents the lock arm 36 from being positioned in the center of the second housing 32 in the width direction, but by positioning it on the first width direction Y1 side of the separation groove 34, it can be locked into the lockable portion 26. In such a connector assembly 11, the contact portion 38 protrudes in the second width direction Y2 of the lock arm 36, so that the size does not increase.

[0050] (7) The separation wall 24 has an auxiliary wall 25 that extends in the width direction toward the space between the two first terminals 23 provided in the height direction, and the second housing 32 has an auxiliary groove 35 into which the auxiliary wall 25 is inserted. Therefore, the auxiliary wall 25 and the auxiliary groove 35 can also prevent the second housing 32 from contacting the first terminals 23. That is, in a configuration in which two first terminals 23 are provided in the height direction of the first housing 22, the opening 22a of the first housing 22 becomes larger in the height direction. Therefore, in a configuration in which the auxiliary wall 25 and the auxiliary groove 35 are not provided, the second housing 32 is more likely to be inserted all the way in at an inclined angle relative to the first housing 22, but this can be prevented by the auxiliary wall 25 and the auxiliary groove 35. Therefore, even if the distance from the opening 22a of the first housing 22 to the first terminals 23 is shortened, contact of the second housing 32 with the first terminals 23 can be prevented. Therefore, the size of the connector assembly 11 can be suppressed.

[0051] This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically. In the above embodiment, the contact portion 38 is provided from the end of the protruding portion 36a of the lock arm 36 in the direction of the tip of the second housing 32, but it is not limited to this, and for example it may be provided slightly towards the rear end side of the end of the second housing 32 in the direction of the tip.

[0052] In the above embodiment, the contact portion 38 is provided from the end of the protruding portion 36a toward the tip of the second housing 32 to the extension portion 36b, but it is not limited to this, and for example it may be provided only on the protruding portion 36a. That is, the contact portion 38 may not be provided on the extension portion 36b that extends from the top of the protruding portion 36a toward the rear end of the second housing 32.

[0053] In the above embodiment, the end face of the second housing 32 in the tip direction of the protrusion 36a and the top face of the protrusion 36a are connected by a chamfered portion 36e, but the embodiment is not limited to this, and for example, they may be connected at a right angle.

[0054] In the above embodiment, the contact portion 38 is set to prevent contact with the first terminal 23 of the second housing 32 even when the lock arm 36 is bent. However, the embodiment is not limited to this, and a configuration in which the bent state of the lock arm 36 is not considered is also possible.

[0055] In the above embodiment, the first housing 22 is shown to have a separation wall 24 positioned between two first terminals 23 provided in the width direction, but it is not limited to this, and a configuration without a separation wall 24 is also possible. Also, of course, if the first housing 22 does not have a separation wall 24, the second housing 32 may be configured not to have a separation groove 34. Furthermore, in the above embodiment, the first terminals 23 are shown to be two provided in the width direction of the first housing 22, but it is not limited to this, and only one or three or more terminals may be provided in the width direction of the first housing 22.

[0056] In the above embodiment, the separation wall 24 is assumed to have an auxiliary wall 25 extending in the width direction toward the space between the two first terminals 23 provided in the height direction, but it is not limited to this, and a configuration without the auxiliary wall 25 is also possible. Also, of course, if the separation wall 24 does not have the auxiliary wall 25, the second housing 32 may be configured without the auxiliary groove 35. Furthermore, in the above embodiment, the first terminals 23 are assumed to be provided in two in the height direction of the first housing 22, but it is not limited to this, and only one may be provided in the height direction of the first housing 22, or three or more may be provided. [Explanation of symbols]

[0057] 11 Connector Assembly 21 First connector 22 First Housing 22a opening 22b Occlusion 22c bottom wall 22d upper wall 22e side wall 22f through hole 23 1st terminal 24 Separation wall 25 Auxiliary wall 26 Locked part 27 Abutted part 28 Symmetrical extension 31. Second connector 32 Second Housing 32a Intake 32b Bottom side 32c top surface 33 2nd terminal 34 Separation groove 35 Auxiliary groove 36 Lock Arm 36a Protrusion 36b Extension part 36c locking claw 36d operation section 36e Chamfered section 37 Protective Wall 38 Contact part X 1st axis X1 First attachment / detachment direction X2 Second attachment / detachment direction Y 2nd axis Y1 1st width direction Y2 2nd width direction Z 3rd axis

Claims

1. A connector assembly comprising a first connector and a second connector, The first connector comprises a first housing and a first terminal held within the first housing. The second connector comprises a second housing that can be fitted into the first housing, and a second terminal that is held within the second housing and can be connected to the first terminal. The first housing has a locking portion and a contact portion, The second housing is provided with a locking arm that engages with the locked portion when fitted into the first housing, The lock arm is provided with a contact portion that contacts the contact portion when the second housing is moved relative to the first housing in an inclined state, thereby preventing the second housing from contacting the first terminal. The lock arm is provided in the second housing in a direction that is one direction in the width direction, closer to the first width direction. The first terminal is provided in two in the width direction of the first housing, The first housing has a separation wall positioned between the two first terminals provided in the width direction, The second housing has a separation groove into which the separation wall is inserted while fitted into the first housing, The lock arm is provided on the first widthwise side of the separation groove. Connector assembly.

2. The lock arm has a protruding portion that extends in the height direction of the second housing from the tip that is fitted into the first housing in the second housing, an extended portion that extends from the top of the protruding portion toward the rear end of the second housing, and a locking claw that protrudes from the extended portion in the height direction of the second housing and can engage with the locked portion. The contact portion is provided from the end of the protruding portion of the second housing in the direction of the tip. The connector assembly according to claim 1.

3. The contact portion is provided from the end of the second housing in the tip direction of the protruding portion to the extended portion. The connector assembly according to claim 2.

4. The end face of the protruding portion in the tip direction of the second housing and the top face of the protruding portion are connected by a chamfered portion. The connector assembly according to claim 2.

5. The contact portion is configured to prevent the second housing from contacting the first terminal even when the lock arm is bent. The connector assembly according to claim 1.

6. The first terminal is provided in two in the height direction of the first housing, The separation wall has an auxiliary wall that extends in the width direction toward the space between the two first terminals provided in the height direction, The second housing has an auxiliary groove into which the auxiliary wall is inserted when fitted into the first housing. The connector assembly according to claim 1.