Lock catch structure, electric connector and connector assembly

Abstract

The utility model discloses a lock catch structure, an electric connector and a connector assembly, belonging to the electric connector field, the lock catch structure comprises: two lock catch members respectively arranged at two sides of the electric connector, an unlocking member, two ends of which are respectively connected with the two lock catch members, the unlocking member has a deformation part, during unlocking, the deformation part is stressed and deformed, and an oblique pulling force is formed on the two lock catch members, so that the lock catch member is unlocked. And the unlocking of the locking fastener and the butting connector is pulled. In the unlocking process, the electric connector can be easily pulled during unlocking only by pulling the deformation part upwards, so that the electric connector is smoothly separated from the butting connector, the unlocking and separation of the electric connector can be realized only by a simple pulling action, and the operation convenience is greatly improved. Moreover, the unlocking operation of the two lock catch pieces and the separation operation of the electric connector are synchronously realized through one unlocking piece, so that all parts of the electric connector are uniformly stressed, and the risk of damage to connecting parts caused by improper unlocking operation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of electric connector especially relates to a lock catch structure, electric connector and connector assembly. BACKGROUND

[0002] As a key component for realizing circuit connection, the reliability and stability of the performance of the electric connector are crucial. With the continuous development of electronic technology, the electric connector is widely used in aerospace, automobile manufacturing, communication equipment, industrial automation and many other fields. In these application scenarios, higher and higher requirements are put forward for the connection stability and unlocking convenience of the electric connector.

[0003] At present, the lock catch structure of the existing electric connector is mostly arranged on one side of the electric connector. This single-sided lock catch design can meet the basic connection and unlocking requirements in some ordinary application scenarios that do not require high connection stability. When unlocking, the unlocking operation is usually realized by pressing with fingers. However, for some connector assemblies that require high stability connection, the single-sided lock catch method has obvious defects. For example, in the field of aerospace, the aircraft will face complex mechanical environments such as severe vibration and impact during flight. The single-sided lock catch structure may not be able to provide sufficient locking force to ensure the reliable connection of the electric connector under such conditions, and may easily loosen or even fall off, thereby affecting the normal operation of the entire system and even causing flight accidents. In automobile manufacturing, the electric connector in the engine compartment needs to withstand harsh working environments such as high temperature and high vibration, and the single-sided lock catch structure is also difficult to ensure long-term stable connection, which may cause faults of the automobile electronic system.

[0004] In addition, the finger pressing unlocking method of the existing lock catch structure also has limitations in the scope of application. In the design of some electric connectors, due to the limitation of space layout, the unlocking space is often very narrow. In this case, the fingers cannot be smoothly inserted or are difficult to be inserted, making it difficult to complete the unlocking operation. For example, in some miniaturized electronic devices, the electric connector is compactly installed in a limited space, and there is not enough space around for the fingers to press and unlock. For maintenance personnel, this unlocking difficulty problem will greatly increase the work difficulty and time cost when maintaining and repairing the equipment, and reduce the work efficiency.

[0005] In order to solve the problems existing in directly unlocking by pressing with fingers, the existing technology appears a way of unlocking by pulling a belt. This way improves the difficulty of finger operation to a certain extent, and provides a relatively convenient unlocking way for the electric connector with a conventional single-sided lock catch structure. However, this way of unlocking by pulling a belt only improves the single-sided lock catch structure, and still cannot meet the requirements of the electric connector in special application scenarios. The existing electric connector with a single-sided belt unlocking has many deficiencies in connection stability, unlocking synchronization, reliability and universality, and is difficult to meet the increasingly diversified and complex requirements of electronic devices and electrical systems. Therefore, there is an urgent need for a new electric connector unlocking structure, which can improve the stability of connection, realize the synchronous unlocking of the two-sided lock catches, and has better universality and reliability to adapt to the requirements of different fields and application scenarios. Utility model content

[0006] The utility model aims at providing a lock catch structure, an electric connector and a connector assembly to overcome at least one of the above-mentioned defects in the prior art.

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

[0008] The lock catch structure provided by the utility model comprises two lock catch pieces arranged on the two sides of the electric connector, an unlocking piece connected with the two lock catch pieces at two ends, and a deformation part of the unlocking piece. When unlocking, the deformation part is deformed under stress to form an oblique pulling force on the two lock catch pieces to pull the lock catch pieces and the mating connector.

[0009] Preferably, the unlocking piece further comprises a connecting part, and the two ends of the deformation part are provided with the connecting part, which is connected with the lock catch piece.

[0010] Preferably, the lock catch piece is provided with a clamping groove, and the connecting part is clamped in the clamping groove.

[0011] Preferably, the deformation part is a pulling rope, an elastic rope or a chain.

[0012] Preferably, the utility model further comprises a pulling belt, and the middle part of the deformation part is provided with a connecting hole, one end of the pulling belt passes through the connecting hole and is connected with the deformation part.

[0013] The utility model further provides an electric connector, which comprises an insulating shell, a circuit board, a cable and the above-mentioned lock catch structure. The circuit board is arranged in the insulating shell, one end of the cable extends into the insulating shell and is electrically connected with the circuit board, the two lock catch pieces are arranged on the two sides of the insulating shell, and the circuit board is located between the two lock catch pieces.

[0014] Preferably, the utility model further comprises a mounting plate arranged in the insulating shell, and the opposite two sides of the mounting plate are both provided with the circuit board. There are two groups of cables, and the two groups of cables are electrically connected with the two circuit boards respectively.

[0015] Preferably, the mounting plate has mounting slots on opposite sides, and the mounting slots have clamping posts, and the circuit board has clamping holes that engage the clamping posts.

[0016] Preferably, the connector assembly further comprises an inner mold disposed in the insulating housing, and the inner mold at least covers the electrical connection between the circuit board and the cable.

[0017] Preferably, the insulating housing has a through hole, and the inner mold extends into the through hole.

[0018] Preferably, the connector assembly further comprises a cover plate, and one side of the insulating housing has an opening, and the cover plate is disposed at the opening, and the cover plate covers the mounting plate and the circuit board that are not covered by the inner mold.

[0019] The utility model also provides a connector assembly, including above-mentioned electric connector, and butt joint connector with electric connector.

[0020] The utility model discloses the beneficial effects are:

[0021] 1, in the unlocking process, only need to pull the deformation part, can pull the electric connector easily in the unlocking, make it smoothly separate butt joint connector, only needs a simple pulling action to realize the unlocking of electric connector and the separation, greatly improved the convenience of operation.

[0022] 2, by setting the lock catch piece on both sides of the electric connector, improve its connection stability with butt joint connector, more reliable.

[0023] 3, the connecting part adopts the mode of being connected with the clamping groove, and the electric connector is assembled conveniently.

[0024] 4, by the setting of the pull belt, the deformation part is pulled conveniently, and the operation convenience is improved.

[0025] 5, by setting two circuit boards on both sides of the mounting plate, the mounting plate in the middle plays a butt joint guiding role when butt joint, and is beneficial to the butt joint of the two circuit boards and butt joint connector.

[0026] 6, by the setting of the through hole, the contact area of the inner mold and the insulating housing is improved, and then the connection stability of the inner mold and the insulating housing is improved.

[0027] 7, the cover plate is set to play a protection role on the circuit board, and plays a limiting role on the mounting plate and the circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1It is the front view structural schematic diagram of the embodiment one of the utility model.

[0029] Figure 2 It is the stress analysis diagram of the utility model when unlocking.

[0030] Figure 3 It is the three-dimensional structure schematic diagram of the unlocking piece of the utility model.

[0031] Figure 4 It is the three-dimensional structure schematic diagram of the lock catch piece of the utility model.

[0032] Figure 5 It is the first three-dimensional structure schematic diagram of the embodiment one of the utility model.

[0033] Figure 6 It is the second three-dimensional structure schematic diagram of the embodiment one of the utility model.

[0034] Figure 7 It is the second view structure schematic diagram of Figure 5 .

[0035] Figure 8 It is the left view structure schematic diagram of the embodiment one of the utility model.

[0036] Figure 9 It is the bottom view structure schematic diagram of the embodiment one of the utility model.

[0037] Figure 10 It is the top view structure schematic diagram of the embodiment one of the utility model.

[0038] Figure 11 It is the partial three-dimensional explosion structure schematic diagram of the embodiment two of the utility model.

[0039] Figure 12 It is the three-dimensional structure schematic diagram of the embodiment two of the utility model.

[0040] Figure 13 It is the explosion structure schematic diagram of the mounting plate and the circuit board of the embodiment two of the utility model.

[0041] Figure 14 It is the three-dimensional structure schematic diagram of the insulation shell and the mounting plate of the embodiment three of the utility model.

[0042] The marks in the drawing are: 1-lock catch piece, 2-unlocking piece, 21-deformation part, 22-connection part, 3-clamping groove, 4-pull belt, 23-connection hole, 5-insulation shell, 6-circuit board, 7-cable, 8-mounting plate, 9-mounting groove, 10-clamping column, 11-clamping hole, 12-inner mode, 13-through hole, 14-cover plate, 15-opening. DETAILED DESCRIPTION

[0043] The utility model is further illustrated in connection with the drawings and specific embodiments.

[0044] The contents not described in detail in the specification belong to the prior art known to the person skilled in the art. In the description of the utility model, it is understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the orientations or positional relationships shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0045] Embodiment one:

[0046] As Figures 1 to 10 shown, the lock catch structure provided in the embodiment includes two lock catch pieces 1 arranged on the left and right sides of the electrical connector respectively. The unlocking piece 2 is connected with the left and right lock catch pieces 1 at the left and right ends respectively, and the unlocking piece 2 has a deformation part 21. When unlocking, the deformation part 21 is deformed under force, and forms an oblique pulling force on both of the lock catch pieces 1 to pull the lock catch piece 1 and the mating connector apart. Specifically, when unlocking, the deformation part 21 is pulled upward (a vertical upward pulling force F 总 is applied to the deformation part 21), the deformation part 21 forms a rightward and upward oblique force F1 on the left lock catch piece 1, and the force F1 is decomposed into a horizontal rightward force F 右 (for unlocking the left lock catch piece 1) and a vertical upward force F 上 (for pulling the electrical connector away from the mating connector); the deformation part 21 forms a leftward and upward oblique force F2 on the right lock catch piece 1, and the force F2 is decomposed into a horizontal leftward force F 左 (for unlocking the right lock catch piece 1) and a vertical upward force F 上(Used to pull the electrical connector away from the mating connector). Thus, during the unlocking process, simply pulling the deformable part 21 upwards easily pulls the electrical connector away from the mating connector, achieving unlocking and disengagement with a simple pulling action, greatly improving operational convenience. Furthermore, by simultaneously unlocking the two locking parts 1 and disengaging the electrical connector through one unlocking part 2, the force on all parts of the electrical connector is evenly distributed, reducing the risk of damage to connecting components due to improper unlocking operations. This invention, by providing locking parts 1 on both sides of the electrical connector, improves its connection stability with the mating connector, making it more reliable.

[0047] The unlocking component 2 further includes a connecting portion 22. Both ends of the deformable portion 21 have connecting portions 22, which are connected to the locking component 1. Specifically, the locking component 1 has a slot 3, and the connecting portion 22 engages with the slot 3. In this embodiment, the deformable portion 21 is a pull rope. In other embodiments, the deformable portion 21 can also be an elastic rope or chain, or other deformable structure that exerts an oblique pulling force on the connecting portion 22 from both sides. The connecting portion 22 is connected by engaging with the slot 3, which facilitates the assembly of the electrical connector.

[0048] The device also includes a pull strap 4. The deformable part 21 has a connecting hole 23 in the middle. The bottom end of the pull strap 4 passes through the connecting hole 23 and connects to the deformable part 21. The pull strap 4 facilitates pulling the deformable part 21 and improves the ease of operation.

[0049] Example 2:

[0050] like Figures 11 to 13 As shown, this embodiment provides an electrical connector, including an insulating housing 5, a circuit board 6, a cable 7, and a locking structure as described in Embodiment 1. The circuit board 6 is disposed inside the insulating housing 5. The front end of the cable 7 extends into the insulating housing 5 and is electrically connected to the circuit board 6. Two locking members 1 are respectively disposed on the left and right sides of the insulating housing 5, and the circuit board 6 is located between the two locking members 1. It also includes a mounting plate 8, which is disposed inside the insulating housing 5. Circuit boards 6 are mounted on opposite sides of the mounting plate 8. In this embodiment, the mounting plate 8 is installed in the insulating housing 5 using a retrofit method, and the mounting plate 8 and the insulating housing 5 are not integrally formed. There are two sets of cables 7, and the two sets of cables 7 are electrically connected to the two circuit boards 6 respectively. Specifically, the mounting plate 8 has mounting grooves 9 on both the left and right sides, and the mounting grooves 9 have locking posts 10. The circuit board 6 has locking holes 11 that engage with the locking posts 10. It also includes an inner mold 12, which is disposed inside the insulating housing 5 and at least covers the electrical connection between the circuit board 6 and the cable 7. By placing the two circuit boards 6 on both sides of the mounting plate 8, the mounting plate 8 in the middle acts as a guide during docking, which facilitates the docking of the two circuit boards 6 with the docking connector.

[0051] The insulating shell 5 has a through hole 13, and the inner mold 12 extends into the through hole 13. The through hole 13 increases the contact area between the inner mold 12 and the insulating shell 5, thereby improving the connection stability between the inner mold 12 and the insulating shell 5.

[0052] This also includes a cover plate 14. The upper side of the insulating housing 5 has an opening 15, and the cover plate 14 is provided at the opening 15. The cover plate 14 covers the mounting plate 8 and the circuit board 6 that are not covered by the inner mold 12. The cover plate 14 provides protection for the circuit board 6 and also limits the position of the mounting plate 8 and the circuit board 6.

[0053] Example 3:

[0054] like Figure 14 As shown, the difference between this embodiment and Embodiment Two is that:

[0055] In this embodiment, the mounting plate 8 and the insulating housing 5 are integrally formed.

[0056] Example 4:

[0057] This embodiment provides a connector assembly, including the electrical connector of Embodiment 2 and a mating connector (not shown) that mates with the electrical connector.

[0058] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A catch structure, characterized by The utility model relates to a lock catch structure of an electric connector, which comprises: two lock catch pieces (1) arranged on two sides of the electric connector respectively; an unlocking piece (2) connected with the two lock catch pieces (1) at two ends respectively, wherein the unlocking piece (2) has a deformation part (21), and when unlocking, the deformation part (21) is deformed under force to form an oblique pulling force on the two lock catch pieces (1) to pull the lock catch pieces (1) and the mating connector apart.

2. The lock catch structure according to claim 1, characterized in that: the unlocking piece (2) further comprises a connecting part (22); both ends of the deformation part (21) have the connecting part (22), and the connecting part (22) is connected with the lock catch piece (1).

3. The lock catch structure according to claim 2, characterized in that: the lock catch piece (1) has a clamping groove (3); the connecting part (22) is clamped with the clamping groove (3).

4. The lock catch structure according to claim 1, characterized in that: the deformation part (21) is a pulling rope, an elastic rope or a chain.

5. The lock catch structure according to claim 1, characterized in that: it further comprises a pulling belt (4); the middle part of the deformation part (21) has a connecting hole (23); one end of the pulling belt (4) passes through the connecting hole (23) and is connected with the deformation part (21).

6. An electric connector, characterized in that: it comprises an insulating shell (5), a circuit board (6), a cable (7) and the lock catch structure according to any one of claims 1-5; the inside of the insulating shell (5) is provided with the circuit board (6); one end of the cable (7) extends into the insulating shell (5) and is electrically connected with the circuit board (6); the two lock catch pieces (1) are arranged on two sides of the insulating shell (5) respectively, and the circuit board (6) is located between the two lock catch pieces (1).

7. The electric connector according to claim 6, characterized in that: it further comprises a mounting plate (8); the mounting plate (8) is arranged in the insulating shell (5); the opposite two sides of the mounting plate (8) are both provided with the circuit board (6); the cable (7) has two groups, and the two groups of cables (7) are electrically connected with the two circuit boards (6) respectively.

8. The electric connector according to claim 7, characterized in that: the opposite two sides of the mounting plate (8) both have a mounting groove (9); the mounting groove (9) has a clamping column (10), and the circuit board (6) has a clamping hole (11) clamped with the clamping column (10).

9. The electric connector according to claim 7, characterized in that: it further comprises an inner mold (12); the inner mold (12) is arranged in the insulating shell (5), and the inner mold (12) at least covers the electric connection between the circuit board (6) and the cable (7).

10. The electric connector according to claim 9, characterized in that: the insulating shell (5) has a through hole (13); the inner mold (12) extends into the through hole (13).

11. The electric connector according to claim 9, characterized in that: it further comprises a cover plate (14); One side of the insulating shell (5) has an opening (15), and a cover plate (14) is arranged at the opening (15), which covers the mounting plate (8) and the circuit board (6) not covered by the inner mold (12).

12. The connector assembly of claim 11, wherein: An electrical connector according to any one of claims 6-11, and a mating connector which mates with the electrical connector.

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