Terminal position assurance device mounting structure and connector

Abstract

The utility model relates to the technical field of connectors, and provides a terminal position assurance device installation structure and a connector. The shell is provided with a sliding groove, the length direction of the sliding groove is parallel to the first direction, in the second direction, the side wall of the sliding groove is provided with a first inserting groove and a second inserting groove, the side wall, adjacent to the second inserting groove, of the first inserting groove is provided with a first guiding face, and the side wall, adjacent to the first inserting groove, of the second inserting groove is provided with a second guiding face. The first guide surface and the second guide surface or extension lines of the first guide surface and the second guide surface can intersect in a second direction, the terminal position assurance device can be inserted into the sliding groove along the first direction, the terminal position assurance device is convexly provided with a positioning block, and the positioning block can generate elastic deformation along the second direction and can be selectively inserted into the first slot or the second slot; the first direction is perpendicular to the second direction. And the positioning block can slide from the first slot to the second slot by virtue of the first guide surface, so that the fluency of the switching action is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a terminal position guarantor installation structure and a connector. Background Art

[0002] An electronic connector is a conductor device that bridges two conductors in a loop so that current or signal can flow from one conductor to another.

[0003] Terminal Position Assurance (TPA) is a structure used for secondary protection and position limiting of terminals to prevent terminals from coming out under external pulling force and causing line interruption.

[0004] Generally, the terminal position ensurer includes a pre-locking position and a final locking position relative to the housing, and the housing wraps the terminal position ensurer inside. When switching the pre-locking position and the final locking position, the operation is complicated, and when the terminal position ensurer is toggled, it is easy to cause misalignment between it and the housing.

[0005] Therefore, there is an urgent need for a terminal position ensurer mounting structure and a connector to solve the above technical problems. Utility Model Content

[0006] The utility model aims to provide a terminal position guarantor installation structure and a connector, which can improve the smoothness of the terminal position guarantor switching between a pre-locking position and a final locking position.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] Terminal position guarantor mounting structure, comprising:

[0009] A shell, wherein the shell is provided with a slide groove, the length direction of the slide groove is parallel to the first direction, and in the second direction, the side wall of the slide groove is provided with a first slot and a second slot, the first slot and the second slot are arranged in sequence in the first direction, a side wall adjacent to the first slot and the second slot is provided with a first guide surface, and a side wall adjacent to the second slot and the first slot is provided with a second guide surface, and the extension line between the first guide surface and the second guide surface or the extension line of the two can intersect in the second direction, and the intersection point formed is away from the bottom wall of the first slot and / or the second slot in the second direction;

[0010] A terminal position guarantor, the terminal position guarantor can be inserted into the slide groove along the first direction, the terminal position guarantor is provided with a positioning block, the positioning block can be elastically deformed along the second direction, and can be selectively inserted into the first slot or the second slot;

[0011] The first direction is perpendicular to the second direction.

[0012] As a preferred technical solution of the installation structure of the terminal position retainer, a support surface is formed between the first guide surface and the second guide surface. The support surface is parallel to the first direction and can abut against the terminal position retainer.

[0013] As a preferred technical solution of the installation structure of the terminal position retainer, the positioning block is provided with corresponding fourth and fifth guide surfaces. The fourth guide surface can be attached to and relatively slide with the first guide surface, and the fifth guide surface can be attached to and relatively slide with the second guide surface.

[0014] As a preferred technical solution of the installation structure of the terminal position retainer, in the third direction, a buckle is provided at the opening of the chute. The buckle is fixed to the side wall of the chute. The terminal position retainer is protruded with a limiting block. The limiting block can be slidably arranged in the chute and is clamped between the buckle and the bottom wall of the chute in the third direction.

[0015] The first direction, the second direction, and the third direction are all perpendicular.

[0016] As a preferred technical solution of the installation structure of the terminal position retainer, in the third direction, a third guide surface is formed on the side of the buckle facing away from the bottom wall of the chute. The limiting block can enter the chute along the third guide surface.

[0017] As a preferred technical solution of the installation structure of the terminal position retainer, a plurality of the buckles are provided, and the plurality of buckles are arranged at intervals along the first direction.

[0018] As a preferred technical solution of the installation structure of the terminal position retainer, on one side of the chute in the first direction, a port is formed on the housing. The terminal position retainer can be inserted into the port in the third direction. A part of the terminal position retainer extends out of the chute from the port and can move along the first direction.

[0019] The first direction, the second direction, and the third direction are perpendicular to each other pairwise.

[0020] As a preferred technical solution of the installation structure of the terminal position retainer, the terminal position retainer is stepped, including a large-diameter section, a small-diameter section, and a shoulder formed between the large-diameter section and the small-diameter section. The large-diameter section is slidably arranged in the chute, the small-diameter section extends out of the chute from the port, and the shoulder can abut against the inner end surface of the port in the first direction.

[0021] As a preferred technical solution of the above terminal position ensuring device mounting structure, in the above first direction, a stop block is provided at the other end of the above chute. When the above positioning block is inserted into the above second slot, the terminal position ensuring device abuts against the stop block in the above first direction.

[0022] A connector is also provided, including the above terminal position ensuring device mounting structure.

[0023] Advantages of the present utility model:

[0024] A terminal position ensuring device mounting structure is provided, including a housing and a terminal position ensuring device. Among them, the housing is provided with a chute, the length direction of the chute is parallel to the first direction, in the second direction, the side wall of the chute is provided with a first slot and a second slot, the first slot and the second slot are arranged in sequence in the first direction, a first guiding surface is provided on one side wall adjacent to the second slot of the first slot, a second guiding surface is provided on one side wall adjacent to the first slot of the second slot, the first guiding surface and the second guiding surface or the extension lines of the two can intersect in the second direction, and the formed intersection point is away from the bottom walls of the first slot and / or the second slot in the second direction; the terminal position ensuring device can be inserted into the chute along the first direction, the terminal position ensuring device is convexly provided with a positioning block, the positioning block can elastically deform along the second direction, and can be selectively inserted into the first slot or the second slot; the first direction is perpendicular to the second direction.

[0025] Exemplarily, the first direction is the length direction of the chute, the second direction is the width direction of the chute, the terminal position ensuring device relative to the housing includes a pre-locking position and a final locking position. When the positioning block of the terminal position ensuring device is inserted into the first slot, the terminal position ensuring device is in the pre-locking position; when the positioning block is inserted into the second slot, the terminal position ensuring device is in the final locking position. By rubbing the terminal position ensuring device along the first direction, it is located in the pre-locking position or the final locking position, and a first guiding surface is provided in the first slot, and a second guiding surface is provided in the second slot. Thus, the positioning block can slide from the first slot to the second slot by means of the first guiding surface. Similarly, the positioning block can slide from the second slot to the second slot by means of the second guiding surface, and the positioning block can also elastically deform when moving between the first slot and the second slot. Ensure the smoothness of the switching action. Description of the drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments of the present utility model. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the content of the embodiments of the present utility model and these drawings.

[0027] Figure 1 It is a schematic structural diagram of the installation structure of the terminal position assurance device provided by an embodiment of the present utility model;

[0028] Figure 2 It is a schematic structural diagram of the terminal position assurance device provided by an embodiment of the present utility model;

[0029] Figure 3 It is a schematic structural diagram of the terminal position assurance device in the pre-locking position provided by an embodiment of the present utility model;

[0030] Figure 4 is Figure 3 a partial enlarged view of the position A in

[0031] Figure 5 is Figure 3 a partial enlarged view of the position B in

[0032] Figure 6 It is a schematic structural diagram of the terminal position assurance device in the final locking position provided by an embodiment of the present utility model;

[0033] Figure 7 is Figure 6 a partial enlarged view of the position C in

[0034] In the figure:

[0035] X, the first direction; Y, the second direction; Z, the third direction;

[0036] 10, housing; 11, chute; 12, first slot; 121, first guiding surface; 13, second slot; 131, second guiding surface; 14, buckle; 15, supporting surface; 16, port; 17, stop block;

[0037] 20, terminal position assurance device; 21, positioning block; 211, fourth guiding surface; 212, fifth guiding surface; 22, limiting block; 23, large diameter section; 24, small diameter section; 25, shoulder. Detailed implementation manners

[0038] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0039] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0041] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] Such as Figures 1 to 7As shown in the figure, the present utility model provides an installation structure for a terminal position assurance device, including a housing 10 and a terminal position assurance device 20. Among them, the housing 10 is provided with a sliding groove 11, the length direction of the sliding groove 11 is parallel to the first direction X, and in the second direction Y, the side wall of the sliding groove 11 is provided with a first slot 12 and a second slot 13. The first slot 12 and the second slot 13 are arranged in sequence in the first direction X. One side wall adjacent to the first slot 12 and the second slot 13 is provided with a first guiding surface 121, and one side wall adjacent to the second slot 13 and the first slot 12 is provided with a second guiding surface 131. The first guiding surface 121 and the second guiding surface 131 or their extension lines can intersect in the second direction Y, and the formed intersection point is away from the bottom walls of the first slot 12 and / or the second slot 13 in the second direction Y; the terminal position assurance device 20 can be inserted into the sliding groove 11 along the first direction X, and the terminal position assurance device 20 is convexly provided with a positioning block 21, and the positioning block 21 can undergo elastic deformation along the second direction Y and can be selectively inserted into the first slot 12 or the second slot 13; the first direction X is perpendicular to the second direction Y.

[0043] Exemplarily, the first direction X is the length direction of the sliding groove 11, and the second direction Y is the width direction of the sliding groove 11. The terminal position assurance device 20 relative to the housing 10 includes a pre-locking position and a final locking position. When the positioning block 21 of the terminal position assurance device 20 is inserted into the first slot 12, the terminal position assurance device 20 is in the pre-locking position; when the positioning block 21 is inserted into the second slot 13, the terminal position assurance device 20 is in the final locking position. By rubbing the terminal position assurance device 20 along the first direction X, it is located in the pre-locking position or the final locking position, and the first guiding surface 121 is provided in the first slot 12, and the second guiding surface 131 is provided in the second slot 13. In this way, the positioning block 21 can slide from the first slot 12 to the second slot 13 by means of the first guiding surface 121. Similarly, the positioning block 21 can slide from the second slot 13 to the second slot 13 by means of the second guiding surface 131, and the positioning block 21 can also undergo elastic deformation when moving between the first slot 12 and the second slot 13. Ensure the smoothness of the switching action.

[0044] Optionally, a supporting surface 15 is formed between the first guiding surface 121 and the second guiding surface 131. The supporting surface 15 is parallel to the first direction X and can be in contact with the terminal position assurance device 20. With such a setting, when the positioning block 21 is inserted into any one of the first slot 12 or the second slot 13, the supporting surface 15 can be in contact with the terminal position assurance device 20 in the second direction Y to straighten the terminal position assurance device 20.

[0045] Optionally, the positioning block 21 is provided with corresponding fourth guiding surface 211 and fifth guiding surface 212. The fourth guiding surface 211 can be in contact with and relatively slide with the first guiding surface 121, and the fifth guiding surface 212 can be in contact with and relatively slide with the second guiding surface 131.

[0046] Exemplarily, the first guiding surface 121, the second guiding surface 131, the fourth guiding surface 211, and the fifth guiding surface 212 are all flat surfaces. In the projection in the third direction Z, the first guiding surface 121 and the second guiding surface 131 are arranged at an angle, the fourth guiding surface 211 and the fifth guiding surface 212 are arranged at an angle, and the first guiding surface 121 is parallel to the fourth guiding surface 211, and the second guiding surface 131 is parallel to the fifth guiding surface 212. When the positioning block 21 moves from the first slot 12 to the second slot 13, the fourth guiding surface 211 fits and relatively slides with the first guiding surface 121; when the positioning block 21 moves from the second slot 13 to the first slot 12, the fifth guiding surface 212 fits and relatively slides with the second guiding surface 131.

[0047] Optionally, at the opening of the chute 11 in the third direction Z, a buckle 14 is provided. The buckle 14 is fixed to the side wall of the chute 11. The terminal position retainer 20 protrudes with a limiting block 22. The limiting block 22 can be slidably arranged in the chute 11 and is clamped between the buckle 14 and the bottom wall of the chute 11 in the third direction Z; the first direction X, the second direction Y, and the third direction Z are all perpendicular.

[0048] Specifically, the first direction X is the length direction of the chute 11, the second direction Y is the width direction of the chute 11, and the third direction Z is the depth direction of the chute 11. During installation, the terminal position retainer 20 is inserted into the chute 11 along the third direction Z, and the terminal position retainer 20 is locked in the chute 11 by the buckle 14, so that it cannot be disengaged from the chute 11 along the third direction Z.

[0049] Optionally, the buckle 14 is detachably connected to the side wall of the chute 11.

[0050] Optionally, the buckle 14 is installed on the side wall of the chute 11, and the buckle 14 is a cantilever structure that can undergo elastic deformation.

[0051] Optionally, on the side of the buckle 14 facing away from the bottom wall of the chute 11 in the third direction Z, a third guiding surface is formed. The limiting block 22 can enter the chute 11 along the third guiding surface. In this way, by setting the third guiding surface, the terminal position retainer 20 can enter the chute 11 more smoothly.

[0052] Optionally, a plurality of buckles 14 are provided, and the plurality of buckles 14 are arranged at intervals along the first direction X. Such a setting can reduce stress concentration.

[0053] Optionally, a port 16 is formed on one side of the sliding groove 11 in the first direction X on the housing 10. The terminal position retainer 20 can be inserted into the port 16 along the third direction Z. A part of the terminal position retainer 20 extends out of the sliding groove 11 from the port 16 and can move along the first direction X. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other pairwise. In this way, outside the housing 10, by pulling the terminal position retainer 20 along the first direction X, the relative position relationship between the terminal position retainer 20 and the housing 10 can be adjusted, and the switching between the pre-locking position and the final locking position can be achieved.

[0054] Optionally, the terminal position retainer 20 is in a stepped shape, including a large-diameter section 23, a small-diameter section 24, and a shoulder 25 formed between the large-diameter section 23 and the small-diameter section 24. The large-diameter section 23 is slidably disposed in the sliding groove 11, the small-diameter section 24 extends out of the sliding groove 11 from the port 16, and the shoulder 25 can abut against the inner end face of the port 16 in the first direction X. With this setting, the distance that the terminal position retainer 20 moves relative to the housing 10 towards the port 16 side is restricted by the shoulder 25.

[0055] Optionally, a stop block 17 is provided at the other end of the sliding groove 11 in the first direction X. When the positioning block 21 is inserted into the second slot 13, the terminal position retainer 20 abuts against the stop block 17 in the first direction X. By providing the stop block 17, the moving range of the terminal position retainer 20 relative to the housing 10 is restricted, and it is avoided that the terminal position retainer 20 crosses the final locking position when switching from the pre-locking position to the final locking position.

[0056] A connector is further provided, including the above-mentioned terminal position retainer mounting structure.

[0057] In addition, the above is only the preferred embodiment of the present utility model and the applied technical principle. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments described here, and various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in more detail through the above embodiments, the present utility model is not limited to the above embodiments only. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

Claims

1. The terminal position ensurer installation structure is characterized by: include: A shell (10), wherein the shell (10) is provided with a slide groove (11), the length direction of the slide groove (11) is parallel to the first direction (X), and in the second direction (Y), the side wall of the slide groove (11) is provided with a first slot (12) and a second slot (13), the first slot (12) and the second slot (13) are arranged in sequence in the first direction (X), a side wall adjacent to the first slot (12) and the second slot (13) is provided with a first guide surface (121), and a side wall adjacent to the second slot (13) and the first slot (12) is provided with a second guide surface (131), and the extension line between the first guide surface (121) and the second guide surface (131) or the extension line of the two can intersect in the second direction (Y), and the intersection point formed is far away from the bottom wall of the first slot (12) and / or the second slot (13) in the second direction (Y); A terminal position guarantor (20), the terminal position guarantor (20) being insertable into the slide groove (11) along the first direction (X), the terminal position guarantor (20) being provided with a protruding positioning block (21), the positioning block (21) being capable of elastic deformation along the second direction (Y) and being selectively insertable into the first slot (12) or the second slot (13); The first direction (X) is perpendicular to the second direction (Y).

2. The terminal position ensurer mounting structure according to claim 1, characterized in that: A supporting surface (15) is formed between the first guide surface (121) and the second guide surface (131); the supporting surface (15) is parallel to the first direction (X) and can abut against the terminal position guarantor (20).

3. The terminal position ensurer mounting structure according to claim 1, characterized in that: The positioning block (21) is provided with a corresponding fourth guide surface (211) and a fifth guide surface (212); the fourth guide surface (211) can be in contact with and slide relatively to the first guide surface (121); and the fifth guide surface (212) can be in contact with and slide relatively to the second guide surface (131).

4. The terminal position ensurer mounting structure according to claim 1, characterized in that: In the third direction (Z), a buckle (14) is provided at the opening of the slide groove (11), the buckle (14) is fixed to the side wall of the slide groove (11), and the terminal position ensurer (20) is provided with a stop block (22), the stop block (22) can be slidably arranged in the slide groove (11), and is clamped between the buckle (14) and the bottom wall of the slide groove (11) in the third direction (Z); The first direction (X), the second direction (Y) and the third direction (Z) are all perpendicular.

5. The terminal position ensurer mounting structure according to claim 4, characterized in that: In the third direction (Z), a third guide surface is formed on the side of the buckle (14) facing away from the bottom wall of the slide groove (11), and the limit block (22) can enter the slide groove (11) along the third guide surface.

6. The terminal position ensurer mounting structure according to claim 5, characterized in that: A plurality of the buckles (14) are provided, and the plurality of the buckles (14) are arranged at intervals along the first direction (X).

7. The terminal position ensurer mounting structure according to claim 1, characterized in that: The slide groove (11) forms a port (16) on the housing (10) at one side of the first direction (X); the terminal position guarantor (20) can be inserted into the port (16) along a third direction (Z); a portion of the terminal position guarantor (20) extends from the port (16) out of the slide groove (11) and can move along the first direction (X); The first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other.

8. The terminal position ensurer mounting structure according to claim 7, characterized in that: The terminal position ensurer (20) is in a stepped shape, comprising a large diameter section (23), a small diameter section (24) and a shoulder (25) formed by the large diameter section (23) and the small diameter section (24); the large diameter section (23) is slidably arranged in the slide groove (11); the small diameter section (24) extends out of the slide groove (11) from the port (16); and the shoulder (25) and the inner end surface of the port (16) are capable of abutting against each other in the first direction (X).

9. The terminal position ensurer installation structure according to any one of claims 1 to 8, characterized in that: In the first direction (X), a stop block (17) is provided at the other end of the slide groove (11), and when the positioning block (21) is inserted into the second slot (13), the terminal position ensurer (20) abuts against the stop block (17) in the first direction (X).

10. A connector, characterized in that It includes the terminal position guarantor installation structure as described in any one of claims 1 to 9.

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