CN218940094U - Connector with terminal secondary locking structure - Google Patents

Abstract

A connector with a terminal secondary locking structure comprises a main body and a latch; the main body is formed by splicing and combining a main body upper cover and a main body lower cover, and the main body upper cover and the main body lower cover are both provided with interfaces; the lock bolt is movably arranged between the upper cover of the main body and the lower cover of the main body and has an unlocked state and a locked state; the latch is provided with a limiting surface which is arranged corresponding to the contact surface of the terminal; when the lock latch is in the unlocking state, the lock latch is in a yielding position to the interface, so that the terminal is conveniently inserted into the interface from the outside of the main body and is in snap fit with the interface; at this time, the limit surface of the latch is not contacted with the contact surface of the terminal; the lock bolt is in a locking state with the main body under the action of an external force in an unlocking state; under the locking state, the latch is in snap fit with the main body, at the moment, the limiting surface is positioned on a release path of the terminal release interface, and the limiting surface is in abutting fit with the contact surface to form a locking effect on the terminal. The connector can reduce repeated complicated disassembly and assembly operations of the lock bolt, and has simple procedures.

Description

Connector with terminal secondary locking structure

Technical Field

The present utility model relates to the field of electrical connectors, and more particularly, to a connector with a secondary locking structure for terminals.

Background

The connector is a common connecting component in electronic equipment and generally comprises a main body and a terminal, wherein the main body is provided with a terminal mounting position, the terminal is provided with a back-off and matched with the main body to ensure the combination stability of the main body and the back-off, and in the electronic equipment in the automobile industry, in order to further enhance the connection stability and reliability between the terminal and the main body, a secondary locking mechanism is added on the basis.

The conventional connector with a terminal secondary locking structure generally adopts a separable cross latch structure, that is, a cross latch is penetrated in a main body to secondarily lock the terminal. Before the terminal and the main body are mounted, the cross latch needs to be pulled out of the main body for the assembly of the terminal, and after the terminal and the main body are assembled, the cross latch is inserted back into the main body to realize the secondary locking effect on the terminal. Therefore, in the prior art, when the terminal is assembled, the latch structure needs to be disassembled and reassembled, and in the connector manufacturing industry, the operation which is seemingly not complex brings accumulated time cost to the terminal automation process, and the assembly efficiency is affected. On the other hand, the latch structure is required to be capable of rapidly and accurately penetrating and assembling the corresponding assembly holes of the main body in the reassembling process, and high requirements are also required for the assembling process.

In summary, it is important to simplify the operation process of the conventional connector with the secondary locking structure of the terminal.

Disclosure of Invention

The utility model aims to provide a connector with a terminal secondary locking structure.

The technical scheme adopted by the utility model is as follows: a connector with a terminal secondary locking structure comprises a main body and a latch; the main body is formed by splicing and combining a main body upper cover and a main body lower cover, and the main body upper cover and the main body lower cover are respectively provided with an interface for the terminal to pass through and locate; the lock bolt is movably arranged between the main body upper cover and the main body lower cover and has an unlocked state and a locked state; the latch is provided with a limiting surface which is arranged corresponding to a contact surface at the rear side of the terminal head;

when the lock latch is in an unlocked state, the lock latch is in a yielding position for the interface, so that the terminal is conveniently inserted into the interface from the outside of the main body and is in snap fit with the interface; at this time, the limit surface of the latch is not contacted with the contact surface of the terminal; the lock latch is in a locking state with the main body under the action of an external force in an unlocking state; in the locking state, the latch is in snap fit with the main body, at this time, the limiting surface is located on a release path of the terminal, which is separated from the interface, and the limiting surface is in abutting fit with the contact surface, so as to form a locking effect on the terminal.

The relevant content explanation in the technical scheme is as follows:

1. in the above scheme, the latch extends along a length direction, two ends of the latch are respectively provided with an arm-shaped elastic buckle, and the main body lower cover is provided with a buckle groove matched with the elastic buckle to form the latch to be in buckle fit with the main body lower cover in a locking state.

2. In the above scheme, be equipped with the constant head tank on the hasp, be equipped with on the main part lower cover with constant head tank matched with location arch.

3. In the scheme, the latch is provided with the yielding notch.

4. In the scheme, the lifting groove is formed in the lock bolt.

5. In the above aspect, the latch includes a pressing surface that is exposed to the outside in an assembled state of the main body upper cover, the main body lower cover, and the latch is brought from an unlocked state to a locked state by pressing the pressing surface.

6. In the above scheme, the lock bolt is in an unlocking state, the pressing surface protrudes out of the outer surfaces of the main body upper cover and the main body lower cover, and in a locking state, the pressing surface is flush with the outer surfaces of the main body upper cover and the main body lower cover.

7. In the above scheme, the terminal and the interface are provided with a plurality of, and the limiting surface of the latch corresponds to the contact surfaces of a plurality of terminals at the same time.

8. In the above scheme, the latch comprises a first latch and a second latch.

9. In the scheme, the terminal is provided with the elastic back-off, and the interface is provided with the step corresponding to the elastic back-off, so that the terminal is in snap fit with the interface.

The utility model has the beneficial effects that: this connector with terminal secondary locking structure is at the during operation, after the terminal installation is accomplished, the user presses the hasp of preassembling in the main part from the locking state to the locking state, can constitute the locking effect to the terminal, cooperates the locking structure of terminal itself and interface again, has constituted secondary locking structure from this, and the stable reliability of being connected between this design has been guaranteed terminal and the main part to can reduce the repeated loaded down with trivial details dismouting operation of hasp, the process is simple, is convenient for improve work efficiency.

Drawings

FIG. 1 is a top perspective view of one embodiment of the present utility model with a latch in an unlatched condition;

FIG. 2 is a bottom perspective view of one embodiment of the present utility model with the latch in an unlatched condition;

FIG. 3 is a top view of one embodiment of the present utility model with the latch in an unlatched condition;

FIG. 4 is a cross-sectional view taken along line Z1-Z1 of FIG. 3;

FIG. 5 is a front view of one embodiment of the present utility model with the latch in an unlatched condition;

FIG. 6 is a cross-sectional view taken along line X1-X1 of FIG. 5;

FIG. 7 is a top perspective view of one embodiment of the present utility model with the latch in a locked condition;

FIG. 8 is a bottom perspective view of one embodiment of the present utility model with the latch in a locked condition;

FIG. 9 is a top view of one embodiment of the present utility model with the latch in a locked condition;

FIG. 10 is a cross-sectional view taken along line Z2-Z2 of FIG. 9;

FIG. 11 is a front view of one embodiment of the present utility model with the latch in a locked condition;

FIG. 12 is a cross-sectional view taken along line X2-X2 of FIG. 5;

FIG. 13 is an exploded view of one embodiment of the present utility model;

fig. 14 is a schematic rear view of a second latch according to an embodiment of the present utility model.

In the above figures: 1. a main body upper cover; 2. a main body lower cover; 21. a buckle groove; 22. positioning the bulge; 3. a terminal; 31. a contact surface; 32. elastic back-off; 41. a first latch; 42. a second latch; 43. a limiting surface; 44. an elastic buckle; 45. a positioning groove; 46. a relief notch; 47. a pulling groove; 48. a pressing surface; 5. an interface; 51. a step.

Detailed Description

The utility model is further described below with reference to the accompanying drawings and examples:

the present utility model will be described in detail with reference to the drawings, wherein modifications and variations are possible in light of the teachings of the present utility model, without departing from the spirit and scope of the present utility model, as will be apparent to those of skill in the art upon understanding the embodiments of the present utility model.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. Singular forms such as "a," "an," "the," and "the" are intended to include the plural forms as well, as used herein.

The terms "first," "second," and the like, as used herein, do not denote a particular order or sequence, nor are they intended to be limiting, but rather are merely used to distinguish one element or operation from another in the same technical term.

As used herein, "connected" or "positioned" may refer to two or more components or devices in physical contact with each other, or indirectly, or in operation or action with each other.

As used herein, the terms "comprising," "including," "having," and the like are intended to be open-ended terms, meaning including, but not limited to.

The term (terms) as used herein generally has the ordinary meaning of each term as used in this field, in this disclosure, and in the special context, unless otherwise noted. Certain terms used to describe the disclosure are discussed below, or elsewhere in this specification, to provide additional guidance to those skilled in the art in light of the description of the disclosure.

The terms "front", "rear", "upper", "lower", "left", "right" and the like used herein are directional terms, and are merely used to describe positional relationships among the structures in the present application, and are not intended to limit the scope of the present application and the specific direction in actual implementation.

As shown in the embodiment of fig. 1 to 14, there is provided a connector with a terminal secondary locking structure including a main body and a latch; the main body is formed by splicing and combining a main body upper cover 1 and a main body lower cover 2, and the main body upper cover 1 and the main body lower cover 2 are respectively provided with an interface 5 for the terminal 3 to penetrate and locate.

The terminal 3 is inserted into the interface 5 in the mounted state and is snap-fitted with the interface 5; one part of the interface 5 is arranged on the main body upper cover 1, the other part is arranged on the main body lower cover 2, and the terminal 3 simultaneously passes through the main body upper cover 1 and the main body lower cover 2 in the installation state; the connector is provided with a plurality of pairs of interfaces 5 and terminals 3 which are in one-to-one correspondence, and are transversely arranged in a first row, a second row and a third row, wherein the first row comprises four pairs of large-size interfaces 5 and terminals 3, and the second row and the third row respectively comprise fifteen pairs of small-size interfaces 5 and terminals 3.

The latch comprises a first latch 41 and a second latch 42, wherein the first latch 41 and the second latch 42 are positioned between the main body upper cover 1 and the main body lower cover 2 in a floating manner and have an unlocked state and a locked state; the first latch 41 and the second latch 42 are provided with a limiting surface 43, and the limiting surface 43 is arranged corresponding to a contact surface 31 on the rear side of the head of the terminal 3, wherein the limiting surface 43 of the first latch 41 corresponds to the contact surfaces 31 of all the first row of terminals 3 and all the second row of terminals 3 at the same time, and the limiting surface 43 of the second latch 42 corresponds to the contact surfaces 31 of all the third row of terminals 3 at the same time.

When the lock bar is in the unlocking state, the lock bar forms a floating abdication for the interface 5, so that the terminal 3 is conveniently inserted into the interface 5 from the outside of the main body and is in snap fit with the interface 5; at this time, the limit surface 43 of the latch is not in contact with the contact surface 31 of the terminal. After the terminal 3 and the interface 5 are assembled, the lock bar and the main body are locked under the action of an external force in an unlocked state; in the locked state, the latch is in snap fit with the main body, at this time, the limiting surface 43 is located on a release path of the terminal 3 from the interface 5, and the limiting surface 43 is in abutting fit with the contact surface 31 to form a locking effect on the terminal 3.

Specifically, when the first latch 41 is in the unlocked state, the limiting surface 43 of the first latch 41 is not in contact with the contact surface 31 of each of the first row of terminals 3 and the second row of terminals 3, that is, does not have a locking effect on each of the first row of terminals 3 and the second row of terminals 3, and at this time, the first latch 41 can reach the locked state under the action of an external force in the unlocked state; the first latch 41 is in snap fit with the main body lower cover 2 in a locked state, at this time, a limiting surface 43 of the first latch 41 is located on a release path of each of the first row of terminals 3 and the second row of terminals 3 from the interface 5, and the limiting surface 43 is in abutting fit with a contact surface 31 of each of the first row of terminals 3 and the second row of terminals 3 to form a locking effect on each of the first row of terminals 3 and the second row of terminals 3; when the second latch 42 is in the unlocked state, the limiting surface 43 of the second latch 42 is not in contact with the contact surface 31 of each third row of terminals 3, i.e. does not have a locking effect on each third row of terminals 3, and the second latch 42 can reach the locked state under the action of an external force in the unlocked state; the second latch 42 is in snap fit with the main body lower cover 2 in the locked state, at this time, the limiting surface 43 of the second latch 42 is located on a release path of each third row of terminals 3 from the interface 5, and the limiting surface 43 is in abutting fit with the contact surface 31 of each third row of terminals 3 to form a locking effect on each third row of terminals 3.

In fig. 6 and 12, only the first row of terminals 3 and the third row of terminals 3 are clearly shown, and most of the second row of terminals 3 are blocked out, due to the view angle.

In the locked state, the first latch 41 and the second latch 42 can float up and down, so that when the terminal 3 enters the interface 5, the up and down floating can be realized to give way for assembling the terminal 3; when the terminal 3 and the interface 5 are assembled, the first latch 41 and the second latch 42 can be locked with the main body by external force, and in the locked state, the first latch 41 and the second latch 42 are positioned by being in snap fit with the main body, so as to realize locking positioning on the terminal 3 in the interface 5.

This connector with terminal secondary locking structure is at the during operation, after terminal 3 installation is accomplished, the user presses the hasp of preassembling in the main part from the locking state to the locking state, can constitute the locking effect to terminal 3, the locking structure of cooperation terminal 3 itself and interface 5 again has constituted secondary locking structure from this, the stable reliability of connection between terminal 3 and the main part has been guaranteed to this design to can reduce the repeated loaded down with trivial details dismouting operation of hasp, the process is simple, is convenient for improve work efficiency.

In this embodiment, the latch extends along a length direction, two ends of the latch are respectively provided with an arm-shaped elastic buckle 44, and the main body lower cover 2 is provided with a buckle groove 21 matched with the elastic buckle 44, so as to form a buckle fit between the latch and the main body lower cover 2 in a locked state.

In this embodiment, the main body upper cover 1 and the main body lower cover 2 are assembled and combined in the front-rear direction, the terminals 3 are positioned by inserting the front ends thereof into the interfaces 5 from the rear to the front, and the length direction of the latch corresponds to the left-right direction.

It is noted that in practical implementations, the latch may be snap-fit with one or more of the main body upper cover 1 and the main body lower cover 2 in the locked state, and is not limited to the main body lower cover 2.

In this embodiment, the first latch 41 is provided with a yielding gap 46, and the yielding gap 46 is used for yielding the first row of terminals 3, and meanwhile, the first latch 41 is limited by the matching relationship between the yielding gap 46 and the first row of terminals 3, so that the first latch 41 is prevented from falling out of the connector in the unlocked state; the relief notch 46 is larger than the first row of terminals 3, and leaves a margin for the first latch 41 to move between an unlocked state and a locked state, and in the locked state, a surface at the upper end edge of the relief notch 46 is a limiting surface 43 corresponding to the first row of terminals 3, so as to form a locking effect on the first row of terminals 3.

In this embodiment, a positioning groove 45 is formed on the second latch 42, a positioning protrusion 22 that is matched with the positioning groove 45 is formed on the main body lower cover 2, and the second latch 42 is limited by the matching relationship between the positioning groove 45 and the positioning protrusion 22, so as to prevent the second latch 42 from falling out of the connector in the unlocked state; wherein the detent 45 is larger than the detent projection 22, leaving a margin for movement of the second latch 42 between the unlatched and latched states.

In this embodiment, the second latch 42 is provided with a pull-up slot 47, which can provide a force-bearing point for pulling the latch outward for disassembly and assembly.

In this embodiment, the lock pin includes a pressing surface 48, and in the assembled state of the main body upper cover 1, the main body lower cover 2, and the lock pin, the pressing surface 48 is exposed to the outside (i.e., can be touched by a user), and the lock pin is brought from the unlocked state to the locked state by pressing the pressing surface 48.

Wherein, the lock pin is in the unlocked state, the pressing surface 48 protrudes outside the main body upper cover 1 and the main body lower cover 2, and the lock pin is in the locked state, the pressing surface 48 is flush with the outside surfaces of the main body upper cover 1 and the main body lower cover 2, and the design can play a role in prompting to remind a user whether the connector is in the secondary locking state.

In this embodiment, the terminal 3 is provided with an elastic back-off 32, and the interface 5 is provided with a step 51 corresponding to the elastic back-off 32, so as to form a snap fit between the terminal 3 and the interface 5; such snap-on structures are known in the art.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. A connector with terminal secondary locking structure, characterized in that:

comprises a main body and a latch;

the main body is formed by splicing and combining a main body upper cover (1) and a main body lower cover (2), and interfaces (5) for the terminal (3) to penetrate and locate are arranged on the main body upper cover (1) and the main body lower cover (2);

the lock bolt is movably arranged between the main body upper cover (1) and the main body lower cover (2) and has an unlocked state and a locked state; the latch is provided with a limiting surface (43), and the limiting surface (43) is arranged corresponding to a contact surface (31) at the rear side of the head of the terminal (3);

when the lock latch is in an unlocked state, the lock latch is in a yielding state for the interface (5), so that the terminal (3) is conveniently inserted into the interface (5) from the outside of the main body and is in snap fit with the interface (5); at this time, the limit surface (43) of the latch is not in contact with the contact surface (31) of the terminal;

the lock latch is in a locking state with the main body under the action of an external force in an unlocking state; in the locking state, the latch is in snap fit with the main body, at this time, the limiting surface (43) is located on a release path of the terminal (3) from the interface (5), and the limiting surface (43) is in abutting fit with the contact surface (31) to form a locking effect on the terminal (3).

2. The connector with terminal secondary lock structure according to claim 1, wherein: the latch extends along a length direction, two ends of the latch are respectively provided with an arm-shaped elastic buckle (44), and the main body lower cover (2) is provided with a buckle groove (21) matched with the elastic buckle (44) to form the latch which is in buckling fit with the main body lower cover (2) in a locking state.

3. A connector with terminal secondary lock structure according to claim 2, wherein: the latch is provided with a positioning groove (45), and the main body lower cover (2) is provided with a positioning protrusion (22) matched with the positioning groove (45).

4. A connector with terminal secondary lock structure according to claim 2, wherein: the latch is formed with a relief notch (46).

5. A connector with terminal secondary lock structure according to claim 2, wherein: the latch is provided with a pulling groove (47).

6. The connector with terminal secondary lock structure according to claim 1, wherein: the latch includes a pressing surface (48), and in an assembled state of the body upper cover (1), the body lower cover (2), and the latch, the pressing surface (48) is exposed to the outside, and the latch is brought from an unlocked state to a locked state by pressing the pressing surface (48).

7. The connector with terminal secondary lock structure according to claim 6, wherein: the lock bolt is in an unlocking state, the pressing surface (48) protrudes out of the outer surfaces of the main body upper cover (1) and the main body lower cover (2), and in a locking state, the pressing surface (48) is flush with the outer surfaces of the main body upper cover (1) and the main body lower cover (2).

8. The connector with terminal secondary lock structure according to claim 1, wherein: the terminal (3) and the interface (5) are provided with a plurality of limiting surfaces (43) of the lock bolt simultaneously correspond to the contact surfaces (31) of a plurality of terminals (3).

9. The connector with terminal secondary lock structure according to claim 1, wherein: the latch includes a first latch (41) and a second latch (42).

10. The connector with terminal secondary lock structure according to claim 1, wherein: the terminal (3) is provided with an elastic back-off (32), and the interface (5) is provided with a step (51) corresponding to the elastic back-off (32), so that the terminal (3) is in snap fit with the interface (5).

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