KR20170085941A - Connector - Google Patents

Abstract

According to an embodiment, a connector includes a connector hole for receiving a wire terminal, a tapped hole communicating with the connector hole for receiving the tap terminal, and a position assurance member formed in a direction crossing the longitudinal direction of the connector hole, A connector housing including a coupling portion; And a position assurance member inserted into the position assurance member engaging portion and including a first locking protrusion and a second locking protrusion of different heights protruding toward the center line of the connector hole.

Description

Connector {CONNECTOR}

The description below relates to the connector.

A connector is a type of electrical component that selectively connects or disconnects electrical connections. The connector may be used to connect electronic components provided inside the electronic-mechanical device such as an automobile.

FIG. 1 is an exploded perspective view of a conventional connector, and FIG. 2 is a cross-sectional view cut along the line I-I in FIG. 1 and 2, a conventional connector 9 includes a connector housing 90 and a plurality of tab terminals 911 fastened to a tab hole 902 formed at one side of the connector housing 90 And a plurality of wire terminals 92 which are fastened to the connector housing 90 from the opposite direction of the tap hole 902. [

The connector housing 90 may include a connector hole 901 communicating with the tapped hole 902 through the inside thereof and a stepped portion 903 having a stepped shape from the connector hole 901.

The wire terminal 92 is fixed to the wire W and has a tab connecting portion 921 for electrically connecting the wire W to the tab terminal 911 and an elastic engaging portion 922 for hooking the step portion 903, . ≪ / RTI >

When the wire terminal 92 is inserted into the connector hole 901 and advances to a predetermined position, the elastic latching portion 922 of the wire terminal 92 is caught by the stepped portion 903, It can be prevented from falling in the opposite direction of the direction.

At this time, a core inserted from the side of the tapped hole 902 can be used to form the stepped portion 903. In the process of forming the stepped portion 903 by the core, . The stepped portion machining hole 904 is communicated with the connector hole 901 like the tap hole 902. [

Therefore, when the bus bar 91 is inserted into the connector housing 90 and the sealing material such as silicone is applied for waterproofing, the problem of sealing material flowing through the stepped portion 904 exposed to the outside .

An object of the present invention is to provide a connector capable of stably fixing a connection terminal connected to a connector housing while preventing a sealing material from being inserted into a connector hole when a sealing material is applied to the connector.

According to an embodiment, a connector includes a connector hole for receiving a wire terminal, a tapped hole communicating with the connector hole for receiving the tap terminal, and a position assurance member formed in a direction crossing the longitudinal direction of the connector hole, A connector housing including a coupling portion; And a position assurance member inserted into the position assurance member engaging portion and including a first locking protrusion and a second locking protrusion of different heights protruding toward the center line of the connector hole.

Wherein the position assurance member includes: a locking plate including the first locking protrusion and the second locking protrusion; And a head portion connected to the locking plate and temporarily fixable at least two positions on the position assurance member engagement portion.

Wherein the position assurance member engaging portion includes: a sliding groove into which the locking plate is slidably inserted; A first engaging portion coupled to the housing engaging portion formed on the head portion when the head portion is inserted by the first length; and a second engaging portion engaging with the housing engaging portion when the head portion is inserted by the second length longer than the first length, And a head coupling portion having a second coupling portion coupled to the first coupling portion.

The head portion may further include a sealing member that is in close contact with an inner wall of the head engaging portion.

The locking plate may further include a slider protruding from both sides and guiding the insertion of the locking plate into the sliding groove.

The height of the second locking protrusion is higher than the height of the first locking protrusion and the length of the second locking protrusion may be shorter than the length of the first locking protrusion with reference to the inserting direction of the position assurance member.

The first locking protrusion interferes with the connector hole when the position assurance member is inserted over the first length, and the second locking protrusion interferes with the connector hole when the position assurance member is inserted into the first length If the second length is longer than the first length, it may interfere with the connector hole.

The position assurance member may include a plurality of second locking projections including the second locking projections, and the plurality of second locking projections may be spaced apart from each other along the insertion direction of the position assurance member.

The position assurance member may include: a third locking protrusion protruding from the opposite side of the first locking protrusion; And a fourth locking protrusion protruding from the opposite side of the second locking protrusion.

Wherein the head portion includes: a main head portion located at a center; And a sub head portion connected to the main head portion and positioned outside the main head portion, wherein the position assurance member engaging portion includes: a main head engaging portion into which the main head engaging portion is inserted; And a subhead coupling portion into which the subhead portion is inserted.

Wherein the sub head portion includes a housing coupling portion protruding toward the main head portion and the sub head coupling portion includes a first coupling portion coupled to the housing coupling portion when the head portion is inserted into the head coupling portion by the first length, part; And a second engaging portion coupled to the housing engaging portion when the head portion is inserted into the head engaging portion by a second length longer than the first length.

Wherein the connector housing includes a partition located between the main head coupling portion and the subhead coupling portion when the position assurance member is fully engaged with the connector housing, And may protrude outward from the partition wall.

According to one embodiment, the connector comprises: a bus bar including a tab terminal; A wire terminal including a terminal body portion having a tab connecting portion connected to the tab terminal, and an elastic engaging portion projecting obliquely from the terminal body portion; And a position assurance member engaging portion that is recessed in a direction intersecting with a longitudinal direction of the connector hole, wherein the connector housing includes: a tab hole for receiving the tab terminal; a connector hole communicating with the tap hole, ; And a position assurance member including a first locking protrusion for supporting the elastic engaging portion and a second locking protrusion for supporting a rear end of the terminal body portion, the position assurance member being insertable into the position assurance member engaging portion.

The height of the second locking protrusion is higher than the height of the first locking protrusion and the length of the second locking protrusion may be shorter than the length of the first locking protrusion with reference to the inserting direction of the position assurance member.

When the position assurance member is inserted over the first length, when the wire terminal is inserted into the connector hole, the elastic locking part is elastically deformed and is coupled to the first locking protrusion while elastically restoring after passing over the first locking protrusion , The wire terminal can be prevented from being primarily detached.

When the position assurance member is inserted into the second length in a state where the wire terminal is completely inserted into the connector hole, the second locking protrusion is positioned at the rear end of the wire terminal, Can be prevented.

The connector further includes a sealing layer for blocking foreign substances flowing into the tapped hole, and the wire terminal further includes a first sealing member for blocking foreign matter flowing into the connector hole, And a second sealing member for blocking foreign matter introduced into the position assurance member engaging portion.

Wherein the head portion includes a main head portion located at the center and a sub head portion located outside the main head portion, wherein the position assurance member engaging portion includes a main head engaging portion into which the main head portion is inserted, And may include a subhead coupling portion to be inserted.

According to the embodiment, it is possible to stably fix the connection terminal connected to the connector housing while preventing the sealing material from being inserted into the connector hole when the sealing material is applied to the connector.

1 is an exploded perspective view of a conventional connector.
Fig. 2 is a cross-sectional view cut along the improvement of section II of Fig.
3 is an exploded perspective view of a connector according to one embodiment.
4 is a cross-sectional view of a connector housing according to one embodiment.
5 is a perspective view of a position assurance member according to one embodiment.
6 is a view showing a state in which the connectors according to one embodiment are coupled to each other.
7 is a front view of the connector according to an embodiment in a state where it is first coupled.
8 is a view showing a state in which the connectors are coupled to each other according to an embodiment.
9 is a front view of the connector according to an embodiment in a state where it is coupled to the connector.
Fig. 10 is a view showing a part of a front view in a state where the connector is firstly engaged according to an embodiment. Fig.
11 is a view showing a part of a front view in a state in which a connector is coupled in a secondary manner according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments. Like reference symbols in the drawings denote like elements.

In describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

The components included in any one embodiment and the components including common functions will be described using the same names in other embodiments. Unless otherwise stated, the description of any one embodiment may be applied to other embodiments, and a detailed description thereof will be omitted in the overlapping scope.

FIG. 3 is an exploded perspective view of a connector according to one embodiment, FIG. 4 is a cross-sectional view of a connector housing according to an embodiment, and FIG. 5 is a perspective view of a position assurance member according to an embodiment. 4 is a cross-sectional view taken along section II-II of Fig.

3 to 5, a connector 1 according to an embodiment includes a connector housing 10, a bus bar 11, at least one wire terminal 12, and a position assurance member 13 . The connector 1 may further include a sealing layer L (see FIG. 6) formed by a sealing material applied in a state where the bus bar 11 is fastened to the connector housing 10.

The bus bar 11 is coupled to the connector housing 10 and may include at least one tab terminal 111. [

The wire terminal 12 is electrically and physically connected to the wire W and inserted into the connector housing 10 to electrically connect the wire W to the bus bar 11. [ The wire terminal 12 includes a terminal body portion formed with a tap connection portion 121 connected to the tab terminal 111, an elastic engagement portion 122 projecting obliquely from the terminal body portion, And a first sealing member 123 surrounding the periphery of the wire W. The elastic striking portion 122 can be elastically deformed in the direction toward the center of the terminal body portion. The elastic locking portion 122 is elastically deformed while passing over the first locking protrusion 1311 of the position assurance member 13 in the process of inserting the wire terminal 12 into the connector housing 10, It can be elastically restored after passing over the projection 1311 and caught by the first locking protrusion 1311. [ The above operation will be described in more detail with reference to Figs. 6 and 7. Fig.

The connector housing 10 can function as an intermediary for connecting the bus bar 11 and the wire terminals 12 to each other. The connector housing 10 includes a connector hole 101 for receiving the wire terminal 12, a tapped hole 102 communicating with the connector hole 101 for receiving the tap terminal 111, And a position assurance member engaging part 104 to which the engaging part 13 is coupled.

The connector hole 101 can communicate with the tap hole 102 and the position assurance member engaging portion 104. The connector hole 101 may have a depressed shape from the first side of the connector housing 10 (the back side of the connector housing 10 with reference to Fig. 3).

The tapped hole 102 may be formed in the second surface of the connector housing 10 (the front surface of the connector housing 10 with reference to Fig. 3). It is understood that the tab hole 102 is formed on the opposite side of the connector hole 101. The tab hole 102 may have a shape in which the tab terminal 111 is fitted. The tab hole 102 may have a shape corresponding to the end surface of the tab terminal 111, for example, a slit shape. The tab hole 102 may have a shape that fits the end surface of the tab terminal 111 so that a member other than the tab terminal 111 can not be inserted. In other words, the connector housing 10 may not be provided with a hole such as the stepped machining hole 904 shown in Figs. 1 and 2. In other words, no holes other than the tapped hole 102 may be formed on the second surface of the connector housing 10. [

The position assurance member engaging portion 104 provides a space in which the position assurance member 13 is engaged. The position assurance member engaging portion 104 may be formed in a direction intersecting with the longitudinal direction of the connector hole 101, for example, in a vertical direction. The position assurance member engaging portion 104 may have a depressed shape from the third surface (right surface of the connector housing 10 with reference to Fig. 3).

The position assurance member engaging portion 104 includes a sliding groove 1041 in which the locking plate 131 of the position assurance member 13 is slidably inserted and a head engaging portion 1041 in which the head portion 132 of the position assurance member 13 is inserted (1042). ≪ / RTI > The head engaging portion 1042 has a depressed shape from the third surface, and the sliding groove 1041 can be further depressed from the head engaging portion 1042 and have a stepped shape.

The head coupling portion 1042 includes a first coupling portion 1042a coupled to the housing coupling portion 1321 formed in the head portion 132 when the head portion 132 is inserted by the first length, And a second engaging portion 1042b coupled to the housing engaging portion 1321 when the second engaging portion 132 is inserted by a second length longer than the first length. For example, the first engaging portion 1042a and the second engaging portion 1042b may be protrusions protruding from the head engaging portion 1042. [

The position assurance member 13 is inserted into the position assurance member engaging portion 104 and supports at least one portion of the wire terminal 12 to prevent the wire terminal 12 from being detached from the connector housing 10 can do. The position assurance member 13 can be temporarily fixed at least two positions with respect to the connector housing 10. [

The position assurance member 13 may include a locking plate 131 slidably inserted along the sliding groove 1041 and a head portion 132 inserted into the head engaging portion 1042. [

The locking plate 131 may include first locking protrusions 1311 and second locking protrusions 1312 having different heights. The first locking protrusion 1311 and the second locking protrusion 1312 protrude toward the center line of the connector hole 101 and can interfere with the wire terminal 12. [

The height of the second locking protrusion 1312 may be higher than the height of the first locking protrusion 1311. The first locking protrusion 1311 can support the elastic hooking portion 122 of the wire terminal 12 and the second locking protrusion 1311 can support the rear end of the terminal body portion of the wire terminal 12 have.

The length of the second locking protrusion 1312 may be shorter than the length of the first locking protrusion 1311 with reference to the inserting direction of the position assurance member 13. [ In other words, with reference to the inserting direction of the wire terminal 12, the second locking protrusion 1312 can overlap only a part of the first locking protrusion 1311. [

The locking plate 131 may include a plurality of second locking projections 1312 spaced apart from each other along the inserting direction of the position assurance member 13. [ At least a part of the spaced space between the plurality of second locking projections 1312 may overlap with the first locking projection 1311 when viewed in a direction perpendicular to the insertion direction of the position assurance member 13. [

The locking plate 131 may further include a slider 1313 protruding from both sides of the locking plate 131 and guiding the insertion of the locking plate 131 into the sliding groove 1041. The slider 1313 can prevent the locking plate 131 from moving in the direction perpendicular to the sliding groove 1041 (up and down with reference to Fig. 3).

The head portion 132 is connected to the locking plate 131 and can be temporarily fixed to at least two positions on the head coupling portion 1042. [ The position assurance member 13 can be temporarily fixed in at least two positions with respect to the connector housing 10 by the interaction of the head portion 132 and the head engaging portion 1042. [ The head portion 132 may include a housing fastening portion 1321 and a second sealing member 1322.

The housing fastening portion 1321 is fastened to the first engaging portion 1042a or the second engaging portion 1042b to temporarily fix the relative position of the position assurance member 13 with respect to the connector housing 10 . For example, the housing fastening portion 1321 may be a projection formed along the outer periphery of the head portion 132. [

The second sealing member 1322 can prevent foreign matter such as moisture or dust from entering from the outside through the position assurance member engaging portion 104. The second sealing member 1322 may have a ring shape that wraps around the outer periphery of the head portion 132, for example. The second sealing member 1322 may be in close contact with a part of the head coupling portion 104, for example, the inner wall of the head coupling portion 104.

In contrast, in the case where the position assurance member engaging portion 104 has a protruding shape and the head portion 132 has a shape surrounding the protruding shape, the housing securing portion 1321 and the second The sealing member 1322 may be disposed along the inner periphery of the head portion 132.

It is needless to say that the housing coupling portion 1321 and / or the second sealing member 1322 may be formed in the head coupling portion 1042 instead of the head portion 132, The first coupling portion 1042a and the second coupling portion 1042b may be formed in the head portion 132 instead of the head coupling portion 1042. [ A detailed description thereof will be omitted.

When the position assurance member 13 is inserted by the first length, it is engaged with the first engaging portion 1042a and fixed at the first position. When the position assurance member 13 is inserted by the second length, the position assurance member 13 is engaged with the second engaging portion 1042b, Can be fixed. In the first position, the resiliently engaging portion 122 of the wire terminal 12 can be prevented from detaching from the connector housing 10 by engaging the first locking protrusion 1311 with the wire terminal 12. The rear end of the terminal body portion of the wire terminal 12 can be prevented from being detached from the connector housing 10 by engaging with the second locking protrusion 1312 in the second position. There is a problem that the wire terminal 12 may be detached only by the first locking protrusion 1311 due to the elastic deformation of the elastic locking part 122 due to the structure or the breakage due to the weak durability. However, in the second locking protrusion 1312 This problem can be prevented.

Fig. 6 is a view showing a state in which the connectors according to one embodiment are coupled to each other, and Fig. 7 is a front view showing a state where the connectors are coupled to each other according to an embodiment. 6 is a cross-sectional view taken along the section III-III of Fig.

6 and 7 show a state in which the position assurance member 13 is first fixed to the connector housing 10 by coupling the housing fastening portion 1321 and the first engaging portion 1042a to each other.

6 and 7, the height of the first locking protrusion 1311 is smaller than the height of the lower end of the terminal body portion of the wire terminal 12, on the basis of the state in which the wire terminal 12 is completely inserted into the connector hole 101 And may be higher than the lower end of the elastic engagement portion 122 of the wire terminal 12. [ The height of the second locking protrusion 1312 may be higher than the lower end of the terminal body portion of the wire terminal 12 and lower than the lower end of the wire W. [ According to the structure as described above, the first locking protrusion 1311 can support the elastic locking portion 122, and the second locking protrusion 1311 can support the elastic locking portion 122, (1312) can support the rear end of the terminal body portion of the wire terminal (12).

Since the first locking protrusion 1311 has a structure protruding toward the center line of the connector hole 101, as shown in Fig. 7, the position assurance member 13 has a predetermined length (may be referred to as "first length & The first locking protrusion 1311 can interfere with the connector hole 101 when viewed from the front.

On the other hand, when the position assurance member 13 is inserted over the first length or less than the second length, as shown in FIG. 7, with respect to a specific second length longer than the first length, (1312) may not interfere with the connector hole (101). In other words, the housing fastening portion 1321 and the first engaging portion 1042a are formed so that the position of the position-assurance member 13 is maintained to be longer than the first length and shorter than the second length, 1311 interfere with the connector hole 101 and the second locking protrusion 1312 does not interfere with the connector hole 101. [

As described above, when the wire terminal 12 is inserted while the position assurance member 13 is first fixed to the connector housing 10, the elastic engaging portion 122 of the wire terminal 12 is elastically deformed, The wire terminal 12 can be inserted into the connector hole 101 by moving over the projection 1311. [ When the wire terminal 12 is inserted until the elastic latching portion 122 completely passes over the first locking projection 1311, the elastic latching portion 122 is positioned at the front of the first locking projection 1311 while being elastically restored , It is possible to prevent the wire terminal 12 from being detached from the connector hole 101 in a primary way. In other words, in the first fixed state, the first locking protrusion 1311 can support the elastic locking portion 122 so that the wire terminal 12 does not come off. In the first fixed state, the second locking protrusion 1312 does not interfere with the connector hole 101, so that the insertion of the wire terminal 12 may not be interrupted.

The locking plate 131 of the position assurance member 13 includes a third locking protrusion 1314 protruding from the opposite side of the first locking protrusion 1311 and a third locking protrusion 1314 protruding from the opposite side of the second locking protrusion 1312 4 locking protrusions 1314, as shown in FIG. The description of the first locking protrusion 1311 and the second locking protrusion 1312 can be applied to the third locking protrusion 1314 and the fourth locking protrusion 1315 as long as there is no opposite substrate. According to the above-described configuration, a plurality of wire terminals 12 can be fixed using one position assurance member 13. In other words, it is possible to fix not only the wire terminal 12 inserted to the upper side of the position assurance member 13, but also the wire terminal 12 inserted to the lower side by using the single position assurance member 13. [

The first sealing member 123 and the sealing layer L can prevent foreign substances such as moisture or dust from flowing from the outside through the connector hole 101 and the tapped hole 102, respectively. According to the first sealing member 123 and the sealing layer L and the second sealing member 1322 described above with reference to FIG. 3, all of the holes 101, 102, 104 It is possible to seal the connector 1 with water.

FIG. 8 is a view showing a state in which the connectors according to an embodiment are coupled in a secondary state, and FIG. 9 is a front view in a state in which connectors according to an embodiment are coupled in a secondary state.

8 and 9 show a state in which the position assurance member 13 is secondarily fixed to the connector housing 10 by coupling the housing fastening portion 1321 and the second engaging portion 1042b to each other.

8 and 9, when the position assurance member 13 is inserted over the second length, the second locking protrusion 1312 may interfere with the connector hole 101 when viewed from the front side. In other words, the housing locking portion 1321 and the second engaging portion 1042b hold the position assurance member 13 inserted over the second length so that the second locking protrusion 1312 is inserted into the connector hole 101 Can be interfered with.

The second locking protrusion 1312 is positioned at the rear end of the wire terminal 12 in a state where the position assurance member 13 is secondarily fixed to the connector housing 10 as described above, And can be prevented from being separated.

Fig. 10 is a view showing a part of a front view in a state in which the connectors are first engaged according to an embodiment, and Fig. 11 is a view showing a part of a front view in a state in which the connectors are coupled in a secondary connection according to an embodiment to be. Figs. 10 and 11 show a modification of the connector housing 30 and the position assurance member 30. Fig.

10 and 11, a connector 3 according to one embodiment includes a connector housing 30, a bus bar 11 (see FIG. 3), at least one wire terminal 12 (see FIG. 3) And may include a guarantee member 33. The connector housing 30 may include a connector hole, a tapped hole, and a position assurance member engaging portion 304. The position assurance member 33 may include a locking plate and a head portion 332. [ The description of the elements that are the same as those of the above-described embodiment will be omitted.

The head portion 332 of the position assurance member 33 includes a main head portion 332a positioned at the center and a sub head portion 332a connected to the main head portion 332a and positioned outside the main head portion 332a 332b.

The position assurance member engaging portion 304 of the connector housing 30 has a main head engaging portion 304a into which the main head portion 332a is inserted and a sub head engaging portion 304b into which the sub head portion 332b is inserted, . ≪ / RTI >

The sub head coupling portion 304b includes a first coupling portion 3042a coupled to the housing coupling portion 3321 formed in the sub head portion 332b when the head portion 332 is inserted by the first length, And a second engaging portion 3042b coupled to the housing engaging portion 3321 when the second engaging portion 332 is inserted by the second length longer than the first length. For example, the first coupling portion 3042a and the second coupling portion 3042b are protrusions protruding outward from the partition 305 separating the main head coupling portion 304a and the subhead coupling portion 304b. .

The second sealing member 3322 may have a ring shape that wraps around the outer periphery of the main head portion 332a and may be in close contact with the inner wall of the main head coupling portion 304a.

According to the embodiment, as shown in FIGS. 1 and 2, in order to form the stepped portion 903 to which the elastic latching portion 922 of the wire terminal 92 is caught, Since the auxiliary processing hole 904 is not required, it is possible to stably fix the connection terminal connected to the connector housing while preventing the sealing material from being inserted into the connector hole when the sealing material is applied to the connector.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it should be understood that the techniques described may be performed in a different order than the described methods, or that components such as the described structures and / or apparatus may be combined or combined in a manner that is different from, Appropriate results can be achieved even if substituted or substituted.

Therefore, other implementations, other embodiments and equivalents to the claims are within the scope of the following claims.

Claims (18)

A connector housing including a connector hole for accommodating a wire terminal, a connector housing communicating with the connector hole and having a tab hole for receiving the tab terminal, and a position assurance member engaging portion formed in a direction crossing the longitudinal direction of the connector hole; And
And a position assurance member inserted into the position assurance member engaging portion and including a first locking protrusion and a second locking protrusion of different heights protruding toward the center line of the connector hole.
The method according to claim 1,
The position-
A locking plate including the first locking protrusion and the second locking protrusion; And
And a head portion that is connected to the locking plate and is temporarily fixable to at least two positions on the position assurance member engagement portion.
3. The method of claim 2,
The position assurance member engaging portion includes:
A sliding groove into which the locking plate is slidably inserted; And
A first engaging portion coupled to the housing engaging portion formed on the head portion when the head portion is inserted by the first length; and a second engaging portion engaging with the housing engaging portion when the head portion is inserted by the second length longer than the first length, And a head coupling portion having a second coupling portion to be coupled therewith.
The method of claim 3,
Wherein the head portion further includes a sealing member that is in close contact with an inner wall of the head engagement portion.
The method of claim 3,
Wherein the locking plate further includes a slider protruding on both sides and guiding the insertion of the locking plate into the sliding groove.
The method according to claim 1,
The height of the second locking protrusion is higher than the height of the first locking protrusion,
And the length of the second locking protrusion is shorter than the length of the first locking protrusion with reference to the inserting direction of the position assurance member.
The method according to claim 6,
The first locking protrusion interferes with the connector hole when the position assurance member is inserted over the first length,
Wherein the second locking protrusion interferes with the connector hole when the position assurance member is inserted into the first length and interferes with the connector hole when inserted by a second length longer than the first length.
The method according to claim 1,
Wherein the position assurance member includes a plurality of second locking projections including the second locking projections,
And the plurality of second locking projections are spaced apart from each other along the insertion direction of the position assurance member.
The method according to claim 1,
The position-
A third locking protrusion protruding from the opposite side of the first locking protrusion; And
And a fourth locking protrusion protruding from the opposite side of the second locking protrusion.
3. The method of claim 2,
Wherein:
A main head portion located at the center; And
And a sub head portion connected to the main head portion and positioned outside the main head portion,
The position assurance member engaging portion includes:
A main head coupling portion into which the main head coupling portion is inserted; And
And a sub head coupling portion into which the sub head portion is inserted.
11. The method of claim 10,
The sub-
And a housing coupling part protruding toward the main head part,
The sub-
A first engaging portion coupled to the housing engaging portion when the head portion is inserted into the head engaging portion by a first length; And
And a second engaging portion coupled to the housing engaging portion when the head portion is inserted into the head engaging portion by a second length longer than the first length.
12. The method of claim 11,
The connector housing includes:
And a partition located between the main head coupling portion and the subhead coupling portion when the position assurance member is fully engaged with the connector housing,
The first connector and the second connector are protrusions protruding outward from the partition.
A bus bar including a tab terminal;
A wire terminal including a terminal body portion having a tab connecting portion connected to the tab terminal, and an elastic engaging portion projecting obliquely from the terminal body portion;
And a position assurance member engaging portion that is recessed in a direction intersecting with a longitudinal direction of the connector hole, wherein the connector housing includes: a tab hole for receiving the tab terminal; a connector hole communicating with the tap hole, ; And
And a position assurance member including a first locking protrusion for supporting the elastic locking portion and a second locking protrusion for supporting a rear end of the terminal body portion, the position assurance member being insertable into the position assurance member engaging portion.
14. The method of claim 13,
The height of the second locking protrusion is higher than the height of the first locking protrusion,
And the length of the second locking protrusion is shorter than the length of the first locking protrusion with reference to the inserting direction of the position assurance member.
15. The method of claim 14,
When the wire terminal is inserted into the connector hole in a state where the position assurance member is inserted over the first length,
Wherein the elastic locking part is elastically deformed and then restored to the first locking protrusion while being elastically restored after passing through the first locking protrusion, thereby preventing the wire terminal from being primarily detached.
16. The method of claim 15,
When the position assurance member is inserted into the connector hole with the second length,
And the second locking protrusion is located at a rear end of the wire terminal, thereby preventing the wire terminal from being detached secondarily.
14. The method of claim 13,
Further comprising a sealing layer for shielding foreign matter flowing into the tapped hole,
The wire terminal further includes a first sealing member for blocking foreign matter introduced into the connector hole,
And the position assurance member further includes a second sealing member for blocking foreign matter introduced into the position assurance member engaging portion.
3. The method of claim 2,
Wherein the head portion includes a main head portion located at the center and a sub head portion located outside the main head portion,
And the position assurance member engaging portion includes a main head engaging portion into which the main head portion is inserted and a sub head engaging portion into which the sub head portion is inserted.

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