Combination structure and electric connector assembly

Through the combined structure of the elastic frame and the clamping holder, the coupling between the convex clamp and the concave clamping part is used to achieve locking of the electrical connector, which solves the problems of insufficient durability of mechanical locks, dependence of electronic locks and failure risks in the prior art, and improves the reliability and stability of the electrical connector.

CN120357232APending Publication Date: 2025-07-22SHENZHEN JINLING ELECTRONICS
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Patent Information

Application Number
CN202510427443.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2025-07-22

AI Technical Summary

Technical Problem

The locking structure of existing electrical connectors has insufficient durability of mechanical locks, dependence of electronic locks and failure risks in high frequency use and complex environments, resulting in poor reliability and user experience.

Method used

The combination structure of the elastic frame and the clamping part is adopted, and locking is achieved through the cooperation of the convex clamping part and the concave clamping part, and the locking state is maintained with auxiliary parts to avoid damage caused by frequent plug-ins and pull-out and locking failure caused by power failure.

Benefits of technology

It improves the reliability and stability of the electrical connector, avoids lock failure caused by frequent plug-ins and unplugging and power failure, and is simple and easy to maintain.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of electric connectors, and discloses a combination structure and an electric connector assembly, the combination structure is used for combining a first part and a second part, a first combination part comprises an elastic frame, the elastic frame is connected with the first part, and a first end of the elastic frame is provided with a first clamping part; the second combination part comprises a second clamping part which is connected with the second component and can be combined with the first clamping part; and the auxiliary part is used for keeping the elastic frame in an initial state when the first clamping part is combined with the second clamping part, so that the first clamping part and the second clamping part are locked in a mutual clamping state. Through the cooperation between the first clamping part and the second clamping part, the first part and the second part can be locked at the port when the first part and the second part are jointed, when unlocking is needed, the first part and the second part can be unlocked by pressing the auxiliary part, and the structure is simple and the reliability is high.
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Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, and particularly to a coupling structure and an electrical connector assembly. Background Art

[0002] As the core mechanical component to ensure the stability of electrical connection, the locking structure of the electrical connector assembly directly relates to charging safety and user experience. The current mainstream snap designs mainly include types such as mechanical button locks, electronic locks, rotary locks, and magnetic locks. However, under high-frequency use, complex environments, and intelligent requirements, their technical limitations are gradually emerging:

[0003] Insufficient durability of mechanical locks: Mechanical button locks rely on the physical cooperation of springs and tongues. Frequent plugging and unplugging (tens of times a day) can easily lead to spring fatigue, tongue wear, or plastic housing cracking. For example, the locking force of the mechanical lock of the Type 2 interface drops by more than 20% after 10,000 plugging and unplugging operations, posing a risk of accidental detachment; while the rotary lock is complex to operate (requiring both hands to rotate and align), and is prone to damage the thread structure due to misoperation in public scenarios, increasing the maintenance cost.

[0004] Dependence and failure risk of electronic locks: Although electronic locks achieve live state interlocking through BMS signals, they rely on the power supply of electrical equipment and require mechanical emergency unlocking (such as a pull cord design) when power is off, resulting in a fragmented user experience. In addition, the electromagnetic mechanism has a response delay or jamming at extreme temperatures (such as -30°C low temperature), which may cause locking failure. Summary of the Invention

[0005] In view of the above deficiencies of the prior art, the present invention provides a coupling structure and an electrical connector assembly. By using the cooperation between the first coupling portions, when the first component is joined with the second component, it can be held at the coupling portion, and its structure is simple and reliable.

[0006] To solve the above technical problems, a technical solution adopted by the present invention is: providing a coupling structure and an electrical connector assembly, a first coupling portion, which includes an elastic frame, the elastic frame is connected to the first component, and a first holding portion is provided at a first end of the elastic frame;

[0007] A second coupling portion, which includes a second holding portion connected to the second component and capable of being combined with the first holding portion; and

[0008] An auxiliary member, which is used to keep the elastic frame in an initial state when the first holding portion is combined with the second holding portion, so as to lock the first holding portion and the second holding portion in a mutually held state.

[0009] Further, the first clamping portion is configured to be a concave clamping portion disposed on the side surface of the elastic frame and close to the first end; the second clamping portion is configured to be a convex clamping portion paired with the concave clamping portion;

[0010] Define the direction in which the first engaging portion and the second engaging portion move towards each other when they are engaged or move away from each other when they are disengaged as the first axis direction. During the process in which the first engaging portion and the second engaging portion move towards each other along the first axis direction, the convex clamping portion presses against the side surface of the elastic frame to cause it to deform and give way. After the convex clamping portion moves to the position of the concave clamping portion, the convex clamping portion and the concave clamping portion enter a pre-locked state; the auxiliary member is used to keep the elastic frame in the initial state when the concave clamping portion and the convex clamping portion are engaged, so as to lock the first clamping portion and the second clamping portion in a state of mutual clamping.

[0011] Further, the elastic frame is connected to the first outer wall of the first component. The elastic frame has an inner frame facing the first outer wall, an outer frame connected to the inner frame and located on the side away from the first outer wall of the inner frame, and a through passage formed between the inner frame and the outer frame. The concave clamping portion is disposed at the first end of the inner frame;

[0012] The auxiliary member has a first insertion block movably inserted into the through passage along the first axis direction, a first limiting block formed at the second end of the first insertion block away from the first end direction, a first top block formed on the inner side surface of the second end of the first insertion block, and a locking block formed on the inner side surface of the first end of the first insertion block; the concave clamping portion penetrates through the inner frame both in the direction of the outer frame and in the direction of the first outer wall; in the initial state, the locking block protrudes into the concave clamping portion;

[0013] When the first engaging portion and the second engaging portion are engaged, the first engaging portion and the second engaging portion move towards each other along the first axis direction. The convex clamping portion presses against the inner side surface of the inner frame to cause it to deform outwards. After the convex clamping portion enters the concave clamping portion, it presses against the locking block in the direction of the outer frame, so as to increase the tendency of the locking block to disengage from the concave clamping portion. At this time, the locking block still does not disengage from the concave clamping portion, and this state is in a pre-locked state;

[0014] When the convex clamping portion and the concave clamping portion are locked in a state of mutual clamping, the locking block is pushed towards the first end along the first axis direction. The locking block exits the concave clamping portion and moves to the first end face of the inner frame. In this state, the elastic frame returns inwards to the initial state. The first limiting block of the first insertion block abuts against the second end face of the outer frame, the first top block abuts against the first outer wall, and the locking block abuts against the first end face of the inner frame, so as to keep the elastic frame in the initial state to lock the concave clamping portion and the convex clamping portion in a state of mutual clamping;

[0015] When unlocking, pull the auxiliary member along the direction from the first end to the second end, so that the first top block releases the abutment against the first outer wall and a pressing space is formed between the first top block and the first outer wall, and the locking block moves a corresponding distance in the direction of the second end; then press the second end of the auxiliary member inward, so that the second end of the auxiliary member moves into the pressing space, and drives the first end of the auxiliary member to move outward with the elastic frame as a fulcrum, so that the auxiliary member drives the first end of the elastic frame to tilt outward, and further separates the concave engaging portion from the convex engaging portion; the convex engaging portion moves in the direction away from the first joint portion along the first axis to complete unlocking.

[0016] Further, the auxiliary member further includes a second insertion block disposed outside the first insertion block, and a concave portion formed between the first insertion block and the second insertion block for at least partially accommodating the outer frame therein, and the opening of the concave portion faces the direction of the first end.

[0017] Further, a second limiting block is further disposed on the outer side surface of the first insertion block, and the second limiting block is used to limit and cooperate with the first end of the outer frame to prevent the auxiliary member from disengaging from the elastic frame in the direction of the second end when the locking block protrudes into the concave engaging portion.

[0018] Further, a second top block matching the first top block is further disposed on the first outer wall; when the position of the locking block is adapted to the position of the concave engaging portion, the first top block and the second top block are misaligned and the first top block is closer to the second end direction; when the locking block abuts against the first end surface of the inner frame, the first top block and the second top block abut against each other to keep the elastic frame in the initial state.

[0019] Further, both side surfaces of the locking block facing the first axis direction are configured as two guiding inclined surfaces, so that the locking block can smoothly enter or disengage from the concave engaging portion along the first axis direction.

[0020] Further, a first avoidance opening for avoiding the locking block is disposed on the inner frame corresponding to the position of the outer frame, and a second avoidance opening is disposed on the outer frame, and the second avoidance opening is misaligned with the first avoidance opening in the first axis direction; the first avoidance opening and the second avoidance opening are used to increase the space of the through passage for the locking block to move smoothly in the through passage.

[0021] Further, the dimension of the outer frame along the first axis is smaller than the corresponding dimension of the inner frame, and the outer frame is closer to the second end direction than the inner frame, so that the second avoidance openings are formed outside both the first end and the second end of the outer frame;

[0022] The first end of the first avoidance opening communicates with the concave clamping portion, and the second end of the second avoidance opening penetrates through the second end of the inner frame.

[0023] The present invention also provides an electrical connector assembly, including an electrical connector, a complementary electrical connector inserted and mated with the electrical connector, and a coupling structure as described in any one of the above.

[0024] The coupling structure of the present invention has at least the following beneficial effects: 1. Different from the traditional spring tongue or rotary alignment mechanical lock, this solution uses the cooperation of the convex clamping portion of the second clamping portion and the concave clamping portion of the first clamping portion to achieve the coupling and locking of the first component and the second component, avoiding the risks of spring fatigue, tongue wear, plastic housing cracking, or damage to the rotary thread structure caused by frequent plugging and unplugging; 2. Different from the electronic lock, this solution uses the cooperation of the convex clamping portion of the second clamping portion and the concave clamping portion of the first clamping portion to achieve the coupling and locking of the first component and the second component, avoiding the locking failure caused by power-off and improving the reliability of the coupling of the first component and the second component; 3. Through the locking block on the auxiliary member, when the convex clamping portion of the second clamping portion cooperates with the concave clamping portion of the first clamping portion, the convex clamping portion is locked, further improving the stability when the first component and the second component are combined; 4. This solution also realizes the unlocking of the convex clamping portion and the concave clamping portion through the cooperation of the auxiliary member and the elastic frame, and its structure is simple and easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0026] Figure 1 is the front view of an embodiment of the electrical connector of the present invention;

[0027] Figure 2 is Figure 1 the cross-sectional view in the A-A direction in

[0028] Figure 3 is Figure 2 the partial enlarged view at B in

[0029] Figure 4 is the structural schematic diagram of the complementary electrical connector and the convex clamping portion of the present invention;

[0030] Figure 5 is the side view of an embodiment of the complementary electrical connector of the present invention;

[0031] Figure 6 is the front view of an embodiment of the complementary electrical connector of the present invention;

[0032] Figure 7 isFigure 6 Cross-sectional view in the C-C direction;

[0033] Figure 8 Side view of an embodiment of the electrical connector of the present invention;

[0034] Figure 9 is Figure 8 Cross-sectional view in the D-D direction;

[0035] Figure 10 Schematic structural diagram of an embodiment of the auxiliary part of the present invention;

[0036] Figure 11 Side view of an embodiment of the auxiliary part of the present invention;

[0037] Figure 12 Schematic structural diagram of the first clamping part, the second clamping part and the auxiliary part of the present invention in the initial state;

[0038] Figure 13 Schematic structural diagram of the first clamping part, the second clamping part and the auxiliary part of the present invention in the pre-locking state;

[0039] Figure 14 Schematic structural diagram of the first clamping part, the second clamping part and the auxiliary part of the present invention in the clamping state;

[0040] Figure 15 Schematic structural diagram of the first clamping part, the second clamping part and the auxiliary part of the present invention when unlocking;

[0041] Figure 16 Explosion diagram of an embodiment of the electrical connector assembly and the sealing structure of the present invention;

[0042] Figure 17 Schematic structural diagram of an embodiment of the flange gasket and the sealing cover of the present invention;

[0043] Figure 18 Schematic diagram of the connection between the flange gasket and the flange of the present invention;

[0044] Figure 19 Schematic diagram of the connection between the flange gasket and the flange in another direction of the present invention;

[0045] Figure 20 Schematic structural diagram of an embodiment of the electrical connector assembly of the present invention.

[0046] The meanings of the reference numerals in the drawings are as follows:

[0047] Elastic frame - 11; inner frame - 111; outer frame - 112; through - channel - 113; first avoidance opening - 114; second avoidance opening - 115; first clamping portion - 12; second top block - 13; second clamping portion - 21; auxiliary part - 3; first insertion block - 31; second insertion block - 32; first limiting block - 33; first top block - 34; locking block - 35; second limiting block - 36;

[0048] Electrical connector - 4; sealing ring - 41; plugging end - 42; first connection end - 43; complementary electrical connector - 5; limiting convex block - 52; complementary plugging end - 53; separating portion - 54; plugging slot - 55; mounting slot - 56; second connection end - 57; flange gasket - 6; flash - 61; limiting groove - 62; sealing cover - 7; cover body - 71; sealing gasket - 72; sealing groove - 721. Detailed implementation mode

[0049] The present invention will be further described below with reference to the accompanying drawings.

[0050] As Figures 1 to 12 shown, the present invention provides a combined structure and an electrical connector assembly. The combined structure utilizes the cooperation between the first combined parts, so that when the first component is joined with the second component, it can be clamped at the combined part, and its structure is simple and the reliability is strong. It should be noted that the first ends in this solution are all the ends close to the above - mentioned second combined part, and the second ends are all the ends far from the above - mentioned second combined part.

[0051] As Figures 2 - 4 shown, the combined structure of the present invention for combining a first component and a second component includes:

[0052] A first combined part, which includes an elastic frame 11. The elastic frame 11 is connected to the first component, and a first clamping portion 12 is provided at the first end of the elastic frame 11; a second combined part, which includes a second clamping portion 21 connected to the second component and capable of combining with the first clamping portion 12; an auxiliary part 3, which is used to keep the elastic frame 11 in the initial state when the first clamping portion 12 and the second clamping portion 21 are combined, so as to lock the first clamping portion 12 and the second clamping portion 21 in a mutually clamped state.

[0053] Specifically, when it is necessary to keep the first component and the second component in a stable engaged state, a coupling structure can be used to lock the first component and the second component. In this embodiment, the coupling structure mainly includes a first coupling portion and a second coupling portion. The first coupling portion may include an elastic frame 11, which is connected to the first component, and a first clamping portion 12 is provided at the first end of the elastic frame 11. The second coupling portion may include a second clamping portion 21 connected thereto, and the second clamping portion 21 can be combined with the first clamping portion 12 to realize the locking of the first component and the second component. In addition, the coupling structure may further include an auxiliary member 3, which can keep the elastic frame 11 in an initial state when the first clamping portion 12 and the second clamping portion 21 are combined, so as to lock the first clamping portion 12 and the second clamping portion 21 in a mutually clamped state, thereby improving the stability of the first clamping portion 12 and the second clamping portion 21 when they are engaged.

[0054] In some embodiments, please refer to Figures 4 to 9 , the first clamping portion 12 may be configured as a concave clamping portion provided on the side of the elastic frame 11 and close to the first end; the second clamping portion 21 is configured as a convex clamping portion paired with the concave clamping portion;

[0055] Hereinafter, the direction of the first coupling portion and the second coupling portion moving towards each other when they are combined or the direction of moving away from each other after being disengaged is defined as the first axis direction. During the process of the first coupling portion and the second coupling portion moving towards each other along the first axis, the convex clamping portion presses the side surface of the elastic frame 11 to deform and make way. After the convex clamping portion moves to the position of the concave clamping portion, the convex clamping portion and the concave clamping portion enter a pre-locked state; the auxiliary member 3 is used to keep the elastic frame 11 in an initial state when the concave clamping portion and the convex clamping portion are combined, so as to lock the first clamping portion 12 and the second clamping portion 21 in a mutually clamped state.

[0056] Specifically, in this embodiment, the first clamping portion 12 is configured as a concave clamping portion disposed on the side of the elastic frame 11 and close to the first end, and the second clamping portion 21 is configured as a convex clamping portion disposed in pair with the concave clamping portion. The concave clamping portion is a concave structure, and the convex clamping portion is a hook structure, and the second clamping portion 21 is combined with the first clamping portion 12 through the combination of the hook and the concave structure. The combining process is to align the convex clamping part with the concave clamping part, and move the first combining part and the second combining part toward each other along the first axial direction so that the concave clamping part gradually approaches the elastic frame 11. In the process that the first combining part and the second combining part continue to move toward each other, the convex clamping part can squeeze the side of the elastic frame 11 to deform and make way for the elastic frame 11, so that after the convex clamping part moves to the position of the concave clamping part, the convex clamping part is retained in the concave clamping part, completing the pre-locking of the first combining part and the second combining part. In this pre-locking state, the elastic frame 11 is continued to be maintained in the initial state through the above-mentioned auxiliary component 3, so that the first holding part 12 and the second holding part 21 can be locked in a mutually holding state, which can also be called a locked state.

[0057] In some embodiments, see Figures 10 to 15 The elastic frame 11 is connected to the first outer wall of the first component, and the elastic frame 11 has an inner frame 111 facing the first outer wall, an outer frame 112 connected to the inner frame 111 and located on the side of the inner frame 111 away from the first outer wall, and a through channel 113 formed between the inner frame 111 and the outer frame 112, and the concave clamping portion is provided at the first end of the inner frame 111;

[0058] The auxiliary component 3 comprises a first plug block 31 movably inserted into the passage 113 along a first axial direction, a first limit block 33 formed on the second end of the first plug block 31 away from the first end, a first top block 34 formed on the inner side surface of the second end of the first plug block 31, and a locking block 35 formed on the inner side surface of the first end of the first plug block 31; the concave card portion penetrates the inner side frame 111 in the direction of the outer side frame 112 and the first outer wall; in the initial state, the locking block 35 protrudes into the concave card portion;

[0059] When the first and second combining parts are combined, the first and second combining parts move toward each other along the first axis direction, and the convex clamping part presses the inner side surface of the inner frame 111 outward to deform it outward. After the convex clamping part enters the concave clamping part, the locking block 35 is pressed toward the outer frame 112 to increase the tendency of the locking block 35 to separate from the concave clamping part. At this time, the locking block 35 has not yet separated from the concave clamping part, and this state is in a pre-locking state.

[0060] When the convex clamping portion and the concave clamping portion are locked in a mutually locked state, the locking block 35 is pushed toward the first end along the first axial direction, and the locking block 35 withdraws from the concave clamping portion and moves to the first end surface of the inner frame 111. In this state, the elastic frame 11 returns inward to the initial state, the first limit block 33 of the first plug block 31 abuts against the second end surface of the outer frame 112, the first top block 34 abuts against the first outer wall, and the locking block 35 abuts against the first end surface of the inner frame 111, so that the elastic frame 11 is kept in the initial state to lock the concave clamping portion and the convex clamping portion in a mutually locked state;

[0061] When unlocking, the auxiliary component 3 is pulled along the first axis toward the second end so that the first top block 34 and the first outer wall are released from the abutment and a pressing space is formed between the first top block 34 and the first outer wall, and the locking block 35 moves a corresponding distance toward the second end; then the second end of the auxiliary component 3 is pressed inwardly to move the second end of the auxiliary component 3 toward the pressing space, and drive the first end of the auxiliary component 3 to move outward with the elastic frame 11 as a fulcrum, so that the auxiliary component 3 drives the first end of the elastic frame 11 to tilt outward, thereby separating the concave clamping portion and the convex clamping portion from each other; the convex clamping portion moves along the first axis direction away from the first combining portion to complete the unlocking.

[0062] Specifically, the elastic frame 11 in the present embodiment is connected to the first outer wall of the first component, and may include an inner frame 111 facing the first outer wall and an outer frame 112 connected to the inner frame 111 and located on the side of the inner frame 111 away from the first outer wall, wherein a through passage 113 may be formed between the inner frame 111 and the outer frame 112, and the concave clamping portion is arranged at the first end of the inner frame 111. The auxiliary component 3 may include a first plug block 31, a first limit block 33, a first top block 34 and a locking block 35, wherein the first plug block 31 can be movably inserted into the passage 113, the first limit block 33 is arranged at the second end of the first plug block 31, the first top block 34 is arranged at the inner side surface of the second end of the first plug block 31 (i.e., the side facing the first component), and the locking block 35 is arranged at the inner side surface of the first end of the first plug block 31. In the initial state, the first plug block 31 is inserted into the passage 113, and since the concave card portion can penetrate the inner frame 111 in the direction of the outer frame 112 and the first outer wall, the locking block 35 can protrude into the concave card portion. Therefore, the combination and unlocking process of the first combination portion and the second combination portion can be refined as follows:

[0063] For the combination process and pre-lock status, please refer to Figure 12 and Figure 13, when the first engaging portion and the second engaging portion are combined, the first engaging portion and the second engaging portion move towards each other along the first axis direction. The convex card portion extrudes the inner side surface of the inner frame 111 outwards to cause it to deform outwards. After the convex card portion enters the concave card portion, it extrudes the locking block 35 towards the outer frame 112. The locking block 35 transmits the outward extrusion force to the elastic frame 11 through the first insertion block 31 to increase the tendency of the locking block 35 to disengage from the concave card portion. At this time, the locking block 35 still has not disengaged from the concave card portion, and this state is in a pre-locked state.

[0064] For the locking process and the locked state, please refer to Figure 14 , when locking the convex card portion and the concave card portion in a mutually engaged state, push the locking block 35 along the first axis direction towards the first end. Since the tendency of the locking block 35 to disengage from the concave card portion has been increased by the extrusion of the convex card portion in the pre-locked state, at this time, only need to push the first insertion block 31 along the first end direction, thereby driving the locking block 35 to withdraw from the concave card portion and move to the first end face of the inner frame 111. In this state, the elastic frame 11 returns inwards to the initial state. The first limiting block 33 of the first insertion block 31 abuts against the second end face of the outer frame 112, the first top block 34 abuts against the first outer wall, and the locking block 35 abuts against the first end face of the inner frame 111, so that the elastic frame 11 is maintained in the initial state to lock the concave card portion and the convex card portion in a mutually engaged state, that is, the locked state.

[0065] For the unlocking process, please refer to Figure 15 , pull the auxiliary member 3 along the first axis direction towards the second end, so that the first top block 34 is disengaged from abutting against the first outer wall and a pressing space is formed between the first top block 34 and the first outer wall. The locking block 35 moves a corresponding distance towards the second end direction; then press the second end of the auxiliary member 3 inwards, so that the second end of the auxiliary member 3 moves towards the pressing space and drives the first end of the auxiliary member 3 to move outwards with the elastic frame 11 as a fulcrum, thereby driving the first end of the elastic frame 11 by the auxiliary member 3 to tilt outwards, and further separating the concave card portion and the convex card portion from each other; furthermore, move the convex card portion along the first axis direction away from the first engaging portion, and the unlocking can be completed.

[0066] In some embodiments, the auxiliary member 3 further includes a second insertion block 32 disposed outside the first insertion block 31, and a concave portion formed between the first insertion block 31 and the second insertion block 32 and at least partially accommodating the outer frame 112 therein. The opening of the concave portion faces the first end direction.

[0067] Specifically, in order to improve the stability between the auxiliary member 3 and the elastic frame 11 after the auxiliary member 3 is inserted into the insertion channel 113, in this embodiment, the auxiliary member 3 may further include a second insertion block 32 disposed outside the first insertion block 31, and a recess capable of accommodating at least a part of the outer frame 112 is formed between the second insertion block 32 and the first insertion block 31. The opening of the recess faces the first end direction, and the second end direction of the recess is the above-mentioned first limiting block 33. The function of the above-mentioned second insertion block 32 is not only to improve the stability between the auxiliary member 3 and the elastic frame 11 after the auxiliary member 3 is inserted into the insertion channel 113, but also during the above-mentioned unlocking process, the second insertion block 32 can also provide an inward force at the first end of the elastic frame 11, making it easier for the concave engaging portion and the convex engaging portion to be separated from each other. In addition, when in the locked state, the above-mentioned recess just falls on the top of the elastic frame 11, further enhancing the locking effect of the auxiliary member 3 on the concave engaging portion and the convex engaging portion.

[0068] In some embodiments, a second limiting block 36 is further disposed on the outer side surface of the first insertion block 31. The second limiting block 36 is used to limit and cooperate with the first end of the outer frame 112 to prevent the auxiliary member 3 from disengaging from the elastic frame 11 in the second end direction when the locking block 35 protrudes into the concave engaging portion.

[0069] Specifically, in this embodiment, a second limiting block 36 may be further disposed on the outer side surface of the first insertion block 31. When the combined structure is in the pre-locked state, the locking block 35 protrudes into the concave engaging portion, and at this time, the second limiting block 36 can just abut against the end surface of the first end of the outer frame 112, so as to limit and cooperate with the first end to prevent the auxiliary member 3 from disengaging from the elastic frame 11 in the second end direction.

[0070] In some embodiments, a second top block 13 cooperating with the first top block 34 is further disposed on the first outer wall; when the position of the locking block 35 is adapted to the position of the concave engaging portion, the first top block 34 and the second top block 13 are misaligned and the first top block 34 is closer to the second end direction; when the locking block 35 abuts against the first end surface of the inner frame 111, the first top block 34 and the second top block 13 abut against each other to maintain the elastic frame 11 in the initial state.

[0071] Specifically, in the above-mentioned locked state, the first top block 34 abuts against the first outer wall, thereby preventing the first end of the auxiliary member 3 from being pushed in the locked state, and thus driving the elastic frame 11 to deform. During the unlocking process, in order to deform the elastic frame 11 by pushing the first end of the auxiliary member 3, a pressing space must be formed between the first top block 34 and the first outer wall. In this embodiment, a second top block 13 that can cooperate with the first top block 34 is provided on the first outer wall. When the position of the locking block 35 matches the position of the concave engaging portion, the first top block 34 is misaligned with the second top block 13 and the first top block 34 is closer to the second end direction. At this time, the misaligned space between the first top block 34 and the second top block 13 can be used as the pressing space. When the locking block 35 abuts against the first end face of the inner frame 111, the first top block 34 and the second top block 13 abut against each other to keep the elastic frame 11 in the initial state.

[0072] In some embodiments, both side surfaces of the locking block 35 facing the first axis direction are configured as two guiding inclined surfaces, so that the locking block 35 can smoothly enter or disengage from the concave engaging portion along the first axis direction.

[0073] Specifically, since the locking block 35 needs to protrude into the concave engaging portion before the pre-locked state, and during the locking process, the extrusion of the convex engaging portion on the locking block 35 only increases the tendency of the locking block 35 to disengage from the outside of the concave engaging portion. Then, in order to make the locking block 35 disengage from the outside of the concave engaging portion and enter the first end face of the concave engaging portion during the locking process, both side surfaces of the locking block 35 facing the first axis direction need to be configured as guiding inclined surfaces, so that the locking block 35 can smoothly enter or disengage from the concave engaging portion along the first axis direction.

[0074] In some embodiments, a first avoidance opening 114 for avoiding the locking block 35 is provided at a position on the inner frame 111 corresponding to the outer frame 112, and a second avoidance opening 115 is provided on the outer frame 112. The second avoidance opening 115 is misaligned with the first avoidance opening 114 in the first axis direction; the first avoidance opening 114 and the second avoidance opening 115 are used to increase the space of the through channel 113 for the locking block 35 to move smoothly in the through channel 113.

[0075] In some embodiments, the dimension of the outer frame 112 along the first axial direction is smaller than the corresponding dimension of the inner frame 111, and the outer frame 112 is closer to the second end direction than the inner frame 111, so that the second avoidance openings 115 are formed outside both the first end and the second end of the outer frame 112;

[0076] The first end of the first avoidance opening 114 communicates with the concave engaging portion, and the second end of the second avoidance opening 115 penetrates through the second end of the inner frame 111.

[0077] Specifically, since the locking block 35 is a convex block inside the first end of the first insertion block 31, in order to facilitate the insertion of the first insertion block 31 into the through channel 113 more easily, in this embodiment, a first avoidance opening 114 for avoiding the locking block 35 is provided on the inner frame 111 at a position corresponding to the outer frame 112, and a second avoidance opening 115 is provided on the outer frame 112. At the same time, the second avoidance opening 115 is arranged offset from the first avoidance opening 114 in the first axial direction, so as to increase the space of the through channel 113 for the locking block 35 to move smoothly in the through channel 113.

[0078] Please refer to Figure 20 , the present invention also provides an electrical connector assembly, including an electrical connector 4, a complementary electrical connector 5 inserted and mated with it, and a coupling structure as described in any one of the above. The first coupling portion of the coupling structure is arranged at the electrical connector 4 as the first component, and the second coupling portion of the coupling structure is arranged at the complementary electrical connector 5 as the second component.

[0079] In some embodiments, the electrical connector 4 has a plugging end 42 and a first connection end 43, the complementary electrical connector 5 has a complementary plugging end 53 inserted and mated with the plugging end 42 and a second connection end 57, and both the first connection end 43 and the second connection end 57 can be connected to a circuit board or a wire.

[0080] In some embodiments, the complementary electrical connector 5 further includes a first insulating housing and second terminals inserted in the first insulating housing; the flange gasket 6 is arranged around the outer periphery of the first insulating housing; a partition 54 for dividing the space inside the housing into two parts is arranged in the first insulating housing, forming a plugging slot 55 close to the direction of the complementary electrical connector 5 and a mounting slot 56 far from the direction of the complementary electrical connector 5. A sealing ring 41 is arranged on the bottom surface of the plugging slot 55; a jack for inserting the second terminal therein is formed at a position corresponding to the second terminal on the partition 54. One end of the second terminal is placed in the slot to form the plugging end 42, and the other end of the second terminal is placed in the mounting slot 56 to form the second connection end 57.

[0081] Based on the above embodiments, the coupling structure of the present invention is different from traditional spring tongues or mechanical locks with rotational alignment. In this solution, the cooperation between the protruding part of the second clamping part 21 and the concave clamping part of the first clamping part 12 is used to achieve the coupling and locking of the first component and the second component, avoiding the risks of spring fatigue, tongue wear, plastic housing cracking, or damage to the rotary thread structure caused by frequent plugging and unplugging; different from electronic locks, this solution uses the cooperation between the protruding part of the second clamping part 21 and the concave clamping part of the first clamping part 12 to achieve the coupling and locking of the first component and the second component, avoiding the locking failure caused by power failure and improving the reliability of the coupling of the first component and the second component; through the locking block 35 on the auxiliary part 3, when the protruding part of the second clamping part 21 cooperates with the concave clamping part of the first clamping part 12, the locking of the protruding part is realized, further improving the stability when the first component and the second component are combined; at the same time, this solution also realizes the unlocking of the protruding part and the concave clamping part through the cooperation between the auxiliary part 3 and the elastic frame 11, and its structure is simple and easy to maintain.

[0082] In some embodiments, please refer to Figures 16 to 20 , the electrical connector assembly further includes an electrical connector sealing structure, which includes a flange gasket 6 and a sealing cover 7. The flange gasket 6 is detachably connected to the flange 51 of the complementary electrical connector 5; the sealing cover 7 is connected to the flange 61 extending from one side of the flange gasket 6, and the sealing cover 7 can be flipped to cover the port of the complementary electrical connector 5.

[0083] Specifically, in this embodiment, the sealing of the complementary electrical connector 5 is mainly achieved through the flange gasket 6 and the sealing cover 7. Among them, the flange gasket 6 is detachably connected to the flange 51 of the complementary electrical connector 5 for realizing the sealing of the end of the complementary electrical connector 5 and the connection of the sealing cover 7; and the above-mentioned sealing cover 7 is connected to the flange 61 extending from one side of the flange gasket 6, and its connection method can be integrally formed or connected through a rotary connector, so that the sealing cover 7 can be flipped to cover the port of the electrical connector 4 by bending the flange 61 or rotating the rotary connector, thereby realizing the sealing of the port of the complementary electrical connector 5 when the complementary electrical connector 5 is not connected to the electrical connector 4.

[0084] In some embodiments, the flange gasket 6 is connected to the flange 51 by bolts.

[0085] Specifically, the above-mentioned flange gasket 6 is detachably connected to the flange 51. In this embodiment, the bolt connection method can be selected, so that the connection between the flange gasket 6 and the flange 51 can be tight, thereby improving the sealing effect of the flange gasket 6 and being convenient for disassembly and maintenance.

[0086] In some embodiments, please refer toFigure 17 The sealing cover 7 includes a cover body 71 and a sealing gasket 72; the sealing gasket 72 is arranged on one end face of the sealing cover 7.

[0087] Specifically, the above-mentioned sealing cover 7 is used to seal the port of the complementary electrical connector 5 when the complementary electrical connector 5 is not connected to the electrical connector 4. In this embodiment, the sealing cover 7 may include a cover body 71 and a sealing gasket 72, wherein the sealing gasket 72 is arranged on one end face of the sealing cover 7, and its specific setting method may be integrally formed directly on one end face of the cover body 71, so as to improve the sealing effect of the sealing cover 7.

[0088] In some embodiments, the sealing gasket 72 is of a columnar structure, and a plurality of sealing grooves 721 extend circumferentially on the columnar surface.

[0089] Specifically, as the main sealing component on the sealing cover 7, the sealing gasket 72 can be set as a columnar structure. The columnar sealing gasket 72 can also extend a plurality of sealing protrusions circumferentially along the columnar surface, and sealing grooves 721 can be formed between adjacent sealing protrusions. Using the plurality of sealing grooves 721 for sealing the port of the electrical connector 4 can improve the sealing effect.

[0090] In some embodiments, please refer to Figure 18 and Figure 19 The cross-sectional area of the sealing groove 721 is larger than the cross-sectional area of the port of the complementary electrical connector 5; when the cover body 71 is flipped to cover the port of the complementary electrical connector 5, the sealing gasket 72 can be squeezed into the port of the complementary electrical connector 5, so that the sealing groove 721 fits with the inner wall of the port of the complementary electrical connector 5.

[0091] Specifically, in this embodiment, the cross-sectional area of the sealing groove 721 can be set to be larger than the cross-sectional area of the port of the complementary electrical connector 5. Since the cover body 71 and the sealing groove 721 of the entire sealing cover 7 are made of elastic sealing materials, when the cover body 71 is flipped to cover the port of the electrical connector 4, the sealing gasket 72 can be squeezed into the port of the complementary electrical connector 5, and the sealing groove 721 can be made to fit with the inner wall of the port of the complementary electrical connector 5, so that a plurality of sealing grooves 721 can be formed on the inner wall of the port of the complementary electrical connector 5, thereby improving the sealing effect of the sealing cover 7.

[0092] It is worth mentioning that Figure 18 and Figure 19The gasket 72 shown in [Figure] is a hollow cylindrical structure, that is, the cross-section of the sealing protrusion and the sealing groove 721 formed between adjacent sealing protrusions is circular. Since the cross-sectional area of the sealing groove 721 is set to be larger than the cross-sectional area of the port of the complementary electrical connector 5, after the gasket 72 is squeezed into the port of the complementary electrical connector 5, the sealing groove 721 can be closely attached to the inner wall of the port of the complementary electrical connector 5. However, although such a shape can improve the sealing effect, during the opening and closing processes of the sealing cover 7, the sealing protrusion will undergo a large deformation, and elastic fatigue of the sealing protrusion will occur after repeated opening and closing, thus affecting the sealing performance. In order to weaken this influence, the cross-sectional shape of the gasket 72 can also be set to be the same as the cross-sectional shape of the port of the complementary electrical connector 5, as long as the area is slightly larger than the cross-sectional area of the port of the complementary electrical connector 5. Thus, on the basis of not affecting the sealing effect, the service life of the sealing cover 7 is also extended.

[0093] In some embodiments, at least one side edge of the flange gasket 6 is provided with a limiting groove 62; a limiting protrusion 52 that cooperates with the limiting groove 62 is provided at a position on the flange 51 corresponding to the limiting groove 62.

[0094] Specifically, since the above-mentioned flange gasket 6 and the flange 51 are detachably connected by bolts, in order to make the contact between the flange gasket 6 and the flange 51 closer and not easy to loosen, limiting grooves 62 can also be provided on the three side edges of the flange gasket 6 where the flanges 61 do not extend. Correspondingly, three limiting protrusions 52 are provided at the contact positions between the limiting grooves 62 and the flange 51. When installing the flange gasket 6, the three limiting grooves 62 can be matched with the three limiting protrusions 52, so as to realize the limitation of the flange gasket 6 on the flange 51, achieve the effect of making the contact between the flange gasket 6 and the flange 51 closer and not easy to loosen, and further improve the sealing effect of the flange gasket 6.

[0095] In some embodiments, a sealing ring 41 is further included; the sealing ring 41 is disposed at a position on the complementary electrical connector 5 that abuts against the electrical connector 4, so that when the complementary electrical connector 5 is engaged with the electrical connector 4, a seal is formed at the position where the complementary electrical connector 5 abuts against the electrical connector 4.

[0096] Specifically, the above-mentioned flange gasket 6 and sealing cover 7 are sealing structures acting on the complementary electrical connector 5. During the charging process when the electrical connector 4 is engaged with the complementary electrical connector 5, sealing protection is also required. For this purpose, a sealing ring 41 is further provided in this embodiment. The sealing ring 41 is disposed at the position where the complementary electrical connector 5 abuts against the electrical connector 4, so that when the complementary electrical connector 5 is engaged with the electrical connector 4, a seal is formed at the port connection of the complementary electrical connector 5 and the electrical connector 4, thereby realizing the protection and sealing of the electrical connector 4 during the charging process.

[0097] Please refer to Figure 20 , the present invention also provides an electrical connector assembly, including an electrical connector 4, a complementary electrical connector 5 that is plugged and matched with it, and the coupling structure as described in any one of the above. The first coupling portion of the coupling structure is disposed at the electrical connector 4 as the first component, and the second coupling portion of the coupling structure is disposed at the complementary electrical connector 5 as the second component.

[0098] Based on the above embodiments, the electrical connector sealing structure of the present invention can achieve the sealing of the complementary electrical connector 5 by using the sealing cover 7 and the flange gasket 6, and achieve the sealing when the complementary electrical connector 5 is engaged with the electrical connector 4 by using the sealing ring 41, improving the overall sealing effect of the complementary electrical connector 5; it can also pass through the sealing groove 721, and the cross-sectional area of the sealing groove 721 is larger than the cross-sectional area of the port of the complementary electrical connector 5, so that when the cover body 71 is flipped to cover the port of the complementary electrical connector 5, the sealing gasket 72 can be squeezed into the port of the complementary electrical connector 5, so that the sealing groove 721 fits with the inner wall of the port of the complementary electrical connector 5, further improving the sealing effect; it can also be connected by bolts between the flange gasket 6 and the flange 51, which is convenient for the disassembly, installation and maintenance of the sealing structure; at the same time, there are limiting grooves 62 on the three sides of the flange gasket 6 that do not extend the flash 61, and corresponding limiting protrusions 52 are provided on the flange 51. The three limiting grooves 62 can cooperate with the limiting protrusions 52 to realize the limitation of the flange gasket 6 on the flange 51, achieving the effect of making the contact between the flange gasket 6 and the flange 51 closer and not easy to loosen, and further improving the sealing effect of the flange gasket 6.

[0099] The above content only expresses the preferred embodiments of the present invention, and its description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A coupling structure for coupling a first component and a second component, characterized in that, Comprising: A first engaging portion, which includes an elastic frame connected to the first component, and a first clamping portion is provided at a first end of the elastic frame; A second engaging portion, which includes a second clamping portion connected to the second component and capable of engaging with the first clamping portion; And An auxiliary member for keeping the elastic frame in an initial state when the first clamping portion engages with the second clamping portion, so as to lock the first clamping portion and the second clamping portion in a mutually clamped state.

2. The combined structure according to claim 1, wherein: The first clamping portion is configured as a concave clamping portion provided on a side surface of the elastic frame and close to the first end; the second clamping portion is configured as a convex clamping portion paired with the concave clamping portion; Define the direction of the first engaging portion and the second engaging portion moving towards each other when they are engaged or the direction of moving away from each other when they are disengaged as the first axial direction. During the process of the first engaging portion and the second engaging portion moving towards each other along the first axial direction, the convex clamping portion squeezes the side surface of the elastic frame to cause it to deform and give way. After the convex clamping portion moves to the position of the concave clamping portion, the convex clamping portion and the concave clamping portion enter a pre-locked state; the auxiliary member is used to keep the elastic frame in an initial state when the concave clamping portion engages with the convex clamping portion, so as to lock the first clamping portion and the second clamping portion in a mutually clamped state.

3. The combined structure according to claim 2, wherein: The elastic frame is connected to a first outer wall of the first component. The elastic frame has an inner frame facing the first outer wall, an outer frame connected to the inner frame and located on a side away from the first outer wall of the inner frame, and a through passage formed between the inner frame and the outer frame. The concave clamping portion is provided at a first end of the inner frame; The auxiliary member has a first insertion block movably inserted into the through passage along the first axial direction, a first limiting block formed at a second end of the first insertion block away from the first end direction, a first top block formed on an inner side surface of the second end of the first insertion block, and a locking block formed on an inner side surface of the first end of the first insertion block; the concave clamping portion penetrates through the inner frame both towards the outer frame direction and the first outer wall direction; in the initial state, the locking block protrudes into the concave clamping portion; When the first engaging portion and the second engaging portion are engaged, the first engaging portion and the second engaging portion move towards each other along the first axial direction. The convex clamping portion outwardly squeezes the inner side surface of the inner frame to cause it to deform outward. After the convex clamping portion enters the concave clamping portion, it squeezes the locking block towards the outer frame direction to increase the tendency of the locking block to disengage from the concave clamping portion. At this time, the locking block still has not disengaged from the concave clamping portion, and this state is in a pre-locked state; When locking the convex clamping portion and the concave clamping portion in a mutually clamped state, push the locking block along the first axial direction towards the first end. The locking block exits the concave clamping portion and moves to a first end surface of the inner frame. In this state, the elastic frame returns inward to the initial state. The first limiting block of the first insertion block abuts against a second end surface of the outer frame, the first top block abuts against the first outer wall, and the locking block abuts against the first end surface of the inner frame, so as to keep the elastic frame in the initial state to lock the concave clamping portion and the convex clamping portion in a mutually clamped state; When unlocking, pull the auxiliary member along the direction from the first end to the second end, so that the first top block disengages from the first outer wall and a pressing space is formed between the first top block and the first outer wall, and the locking block moves a corresponding distance in the direction of the second end; Then press the second end of the auxiliary member inward, so that the second end of the auxiliary member moves into the pressing space, and drives the first end of the auxiliary member to move outward with the elastic frame as a fulcrum, so that the auxiliary member drives the first end of the elastic frame to tilt outward, and further separates the concave engaging portion from the convex engaging portion; the convex engaging portion moves in the direction away from the first engaging portion along the first axis to complete unlocking.

4. The combined structure according to claim 3, characterized in that: The auxiliary member further includes a second plug provided outside the first plug, and a concave portion formed between the first plug and the second plug for at least partially accommodating the outer frame therein, and the opening of the concave portion faces the direction of the first end.

5. The combined structure according to claim 3, characterized in that: A second limiting block is further provided on the outer side surface of the first plug, and the second limiting block is used to limit and cooperate with the first end of the outer frame to prevent the auxiliary member from disengaging from the elastic frame in the direction of the second end when the locking block protrudes into the concave engaging portion.

6. The combined structure according to claim 3, wherein: A second top block cooperating with the first top block is further provided on the first outer wall; when the position of the locking block is adapted to the position of the concave engaging portion, the first top block and the second top block are misaligned and the first top block is closer to the second end direction; when the locking block abuts against the first end face of the inner frame, the first top block and the second top block abut against each other to keep the elastic frame in the initial state.

7. The combined structure according to claim 3, wherein: Both side surfaces of the locking block facing the first axis are configured as two guiding inclined surfaces, so that the locking block can smoothly enter or disengage from the concave engaging portion along the first axis.

8. The combined structure according to claim 3, wherein: A first avoidance opening for avoiding the locking block is provided at a position on the inner frame corresponding to the outer frame, and a second avoidance opening is provided on the outer frame, and the second avoidance opening is misaligned with the first avoidance opening in the first axis direction; the first avoidance opening and the second avoidance opening are used to increase the space of the through channel for the locking block to move smoothly in the through channel.

9. The combined structure according to claim 8, wherein: The dimension of the outer frame along the first axis is smaller than the corresponding dimension of the inner frame, and the outer frame is closer to the second end direction than the inner frame, so that the second avoidance openings are formed outside both the first end and the second end of the outer frame; The first end of the first avoidance opening communicates with the concave engaging portion, and the second end of the second avoidance opening penetrates through the second end of the inner frame.

10. An electrical connector assembly, characterized in that, It includes an electrical connector, a complementary electrical connector plugged and mated with it, and a coupling structure according to any one of claims 1 to 9, wherein the first coupling portion of the coupling structure is provided at the electrical connector as the first component, and the second coupling portion of the coupling structure is provided at the complementary electrical connector as the second component.