Connector assembly

By introducing a first locking structure and a second locking structure into the connector assembly, the problems of mis-locking and insufficient terminal retention force in existing connector assemblies are solved, achieving higher stability and security.

CN122159007APending Publication Date: 2026-06-05SHENZHEN SHINNING ELECTRONICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN SHINNING ELECTRONICS
Filing Date
2026-05-08
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing connector assemblies have the risk of accidental unlocking and insufficient terminal retention force.

Method used

A connector assembly is designed, comprising a wire-end connector, a board-end connector, a snap-fit ​​structure, and a second locking structure. The first locking structure vertically locks the housing and terminals on the wire-end connector, and the second locking structure performs secondary locking after the board-end connector mates with the wire-end connector.

Benefits of technology

It improves the stability and safety of the connector, avoids mis-locking, and enhances the retention force and stability of the terminals.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122159007A_ABST
    Figure CN122159007A_ABST
Patent Text Reader

Abstract

The present application relates to a connector assembly, comprising: a wire-end connector, comprising a housing, a first terminal and a first locking structure, the first terminal being at least partially inserted into the housing, and the first locking structure penetrating into the housing in a direction perpendicular to the insertion direction of the first terminal to lock the housing and the first terminal; a board-end connector, which is matched with the wire-end connector; a pressing buckle structure, which is arranged on the board-end connector and the wire-end connector to fix the board-end connector and the wire-end connector when the board-end connector and the wire-end connector are matched; and a second locking structure, which is movably arranged on the wire-end connector and locks the pressing buckle structure after the board-end connector and the wire-end connector are matched in place. The connector assembly increases the holding force and stability of the first terminal by arranging the first locking structure in the wire-end connector, and the connector assembly can avoid the separation of the wire-end connector and the board-end connector caused by mispressing by arranging the second locking structure.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of connectors, and more particularly to connector assemblies. Background Technology

[0002] like Figure 1 As shown, connector assemblies in related technologies typically include a wire-end connector 10 and a board-end connector 20. The wire-end connector 10 and the board-end connector 20 are mated by a snap-fit ​​structure 30. When the snap-fit ​​is pressed with a finger and pulled back, the wire-end connector 10 and the board-end connector 20 can be separated. However, there is a risk of accidental unlocking. In addition, the wire-end connector 10 is usually locked by inserting the terminal into the housing, so the holding force of the terminal is relatively small. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an improved connector assembly.

[0004] The technical solution adopted by this invention to solve its technical problem is: constructing a connector assembly, comprising: A wire connector includes a housing, a first terminal, and a first locking structure, wherein the first terminal is at least partially inserted into the housing, and the first locking structure extends into the housing in a direction perpendicular to the insertion direction of the first terminal to lock the housing and the first terminal. A board-end connector, which mates with the wire-end connector; A snap-fit ​​structure is provided on the board end connector and the wire end connector to fix the board end connector and the wire end connector when the board end connector and the wire end connector are mated. The second locking structure is movably mounted on the wire end connector and locks the snap-fit ​​structure after the board end connector and the wire end connector are mated in place.

[0005] Preferably, the housing includes a first sidewall and a second sidewall disposed opposite to each other, and a third sidewall and a fourth sidewall disposed opposite to each other; the third sidewall and the fourth sidewall are spaced apart between the first sidewall and the second sidewall; The third sidewall and / or the fourth sidewall of the housing are provided with perforations, and the first locking structure is detachably inserted through the perforations.

[0006] Preferably, the first locking structure includes a body and a protrusion; the body is longitudinally elongated, and the protrusion protrudes from one side of the body and extends along the length direction of the body; The inner wall surface of the first sidewall is provided with a snap-fit ​​groove, which communicates with the through hole, allowing the protrusion to slide in and snap into the protrusion.

[0007] Preferably, a limiting groove is provided on the side of the body opposite to the protrusion, and the limiting groove is provided in a one-to-one correspondence with the first terminal.

[0008] Preferably, the snap-fit ​​structure includes a hook and a snap fastener that cooperate with each other, the hook being disposed on the plate end connector and the snap fastener being disposed on the housing; The housing includes a first end that mates with the board end connector and a second end that is disposed opposite to the first end; The snap fastener includes a pressing part and a fastening part; the fastening part is disposed at the end of the pressing part facing the first end, and when the board end connector and the wire end connector are mated, the snap hook is fastened to the fastening part. The second locking structure is movably inserted between the buckle and the housing, and supports the pressing part after the plate end connector and the wire end connector are mated in place.

[0009] Preferably, a channel is formed between the buckle and the housing for the second locking structure and the hook to be inserted; The buckle is provided with a first limiting structure and a second limiting structure, which are spaced apart between the first end and the second end to limit the movement distance of the second locking structure.

[0010] Preferably, the second locking structure includes an insertion part and a support part, the insertion part being movably inserted between the buckle and the housing, and the support part being disposed at one end of the insertion part; When the second locking structure is in the first position, the pressing part is at least partially disposed between the insertion part and the support part; When the second locking structure is in the second position, the pressing part is located on the support part and in contact with the support part.

[0011] Preferably, the housing is provided with a guide groove for the second locking structure to move; A locking structure is provided between the second locking structure and the housing; the locking structure includes a latch and a locking groove; the latch is disposed on the inner side of the groove wall of the guide groove, and the locking groove is formed on the second locking structure and cooperates with the latch.

[0012] Preferably, the second locking structure includes a sliding portion that slides in the guide groove; the sliding portion is provided with at least two locking grooves at intervals along the sliding direction.

[0013] Preferably, the board-end connector includes a fixing plate and a second terminal disposed on the fixing plate, wherein when the board-end connector is mated with the wire-end connector, the second terminal is at least partially inserted into the wire-end connector; The snap-fit ​​structure is at least partially disposed on the fixing plate.

[0014] The connector assembly of the present invention has the following beneficial effects: the connector assembly provides a first locking structure in the line connector and inserts the first locking structure into the housing in a direction perpendicular to the insertion direction of the first terminal, thereby locking the housing and the first terminal and increasing the holding force and stability of the first terminal. In addition, the connector assembly also provides a second locking structure to lock the snap-fit ​​structure on the board connector and the line connector after the board connector and the line connector are mated, thereby achieving secondary locking and preventing accidental compression that could cause the line connector and the board connector to separate. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a structural schematic diagram of an existing connector assembly; Figure 2 This is a schematic diagram of the state of the connector assembly before mating of the wire end connector and the board end connector in some embodiments of the present invention; Figure 3 yes Figure 2 The diagram shows the mating process of the wire-end connector and the board-end connector of the connector assembly shown. Figure 4 yes Figure 2 The diagram shows the mating state of the wire-end connector and the board-end connector of the connector assembly shown. Figure 5 yes Figure 2 A partial structural schematic diagram of the connector assembly shown; Figure 6 yes Figure 5 Another angle view of the connector assembly shown; Figure 7 yes Figure 5 A partial structural cross-sectional view (AA) of the connector assembly shown. Figure 8 yes Figure 5 A magnified schematic diagram of a portion of the connector assembly shown; Figure 9 yes Figure 5 A partial structural exploded view of the connector assembly shown. Figure 10 yes Figure 5 The diagram shows the connector assembly in which the wire-end connector is not equipped with the second locking structure. Figure 11 yes Figure 10 A schematic diagram of the housing state of the wire connector shown; Figure 12 yes Figure 9 A schematic diagram of the first locking structure of the connector assembly shown; Figure 13 yes Figure 9 A schematic diagram of the second locking structure of the connector assembly shown. Detailed Implementation

[0016] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the terms "upper," "lower," "longitudinal," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing the technical solution and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limiting the present invention.

[0017] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0018] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0019] Figure 2Some preferred embodiments of the connector assembly of the present invention are shown. This connector assembly has the function of transmitting current and signals. This connector assembly has high stability and safe operation.

[0020] like Figures 3 to 8 As shown, in some embodiments, the connector assembly includes a wire-end connector 10, a board-end connector 20, a snap-fit ​​structure 30, and a second locking structure 40. The wire-end connector 10 can mate with the board-end connector 20. The snap-fit ​​structure 30 is disposed on both the wire-end connector 10 and the board-end connector 20, fixing both the board-end connector 20 and the wire-end connector 10 when they mate. The second locking structure 40 is movably disposed on the wire-end connector 10, locking the snap-fit ​​structure 30 after the board-end connector 20 and the wire-end connector 10 are in place.

[0021] like Figures 5 to 11 As shown, in some embodiments, the wire connector 10 may include a housing 11, a first terminal 12, and a first locking structure 13. The housing 11 is used to mount the first terminal 12 and can protect the first terminal 12. The first terminal 12 is at least partially inserted into the housing 11 and can be electrically connected to the board connector to realize the transmission of signals and current. The first locking structure 13 can penetrate into the housing 11 in a direction perpendicular to the insertion direction of the first terminal, and can lock the housing 11 and the first terminal 12, thereby giving the first terminal 12 a retaining force and enabling the first terminal 12 to stably engage with the housing 11.

[0022] In some embodiments, the housing 11 may include a first sidewall 11a and a second sidewall 11b disposed opposite to each other, and a third sidewall 11c and a fourth sidewall 11d disposed opposite to each other. The first sidewall 11a and the second sidewall 11b are spaced apart and parallel to each other. The third sidewall 11c and the fourth sidewall 11d are spaced apart between the first sidewall 11a and the second sidewall 11b. The third sidewall 11c is connected to the first sidewall 11a and the second sidewall 11b and is perpendicular to each other. The fourth sidewall 11d is connected to the first sidewall 11a and the second sidewall 11b and is perpendicular to each other. In some embodiments, the third sidewall 11c and the fourth sidewall 11d of the housing 11 are provided with through holes 113, which can be used for the first locking structure 13 to pass through. The two through holes 113 on the third sidewall 11c and the fourth sidewall 11d are disposed opposite to each other. In some embodiments, through holes 113 may be provided only on the third sidewall 11c or the fourth sidewall 11d. The cross-sectional shape and size of the perforation 113 can be adapted to the cross-sectional shape and size of the first locking structure 13.

[0023] In some embodiments, the housing 11 includes a first end 1101 and a second end 1102. The first end 1101 can mate with a board-end connector 20. The second end 1102 can be disposed opposite to the first end 1101. The housing 11 is provided with terminal holes 111, which can extend from the second end 1102 to the first end 1101. There can be at least one terminal hole 111, and in some embodiments, there can be four terminal holes 111. Of course, it is understood that in other embodiments, the number of terminal holes 111 is not limited to four, but can be two, three, five, etc. Each terminal hole 111 can accommodate a first terminal 12. All terminal holes 111 can be interconnected. A connecting hole can be provided between the first end 1101 and the second end 1102 to connect all terminal holes 111. The extending direction of the connecting hole can be perpendicular to the length direction of the terminal holes 111, which can connect the terminal holes 111. The connecting hole can communicate with a through hole 113, thereby facilitating the insertion of the first locking structure 13.

[0024] In some embodiments, there may be multiple first terminals 12, specifically four, each of which can be inserted into a terminal hole 111. The first terminals 12 can be locked to the housing 11. In some embodiments, a snap-fit ​​hole 117 may be provided on the second sidewall 11b, and the first terminal 12 can be partially snapped into the snap-fit ​​hole 117 to achieve a tight fit with the housing 11. A latch 121 may be provided on the first terminal 12, which can be snapped into the snap-fit ​​hole 117, thereby connecting and fixing the first terminal 12 to the housing 11.

[0025] In some embodiments, the first locking structure 13 may pass through the through hole 113 in the third sidewall 11c to the through hole 113 in the fourth sidewall 11d. The first locking structure 13 may pass through each terminal hole 111 and press against the first terminal 12 inserted into the terminal hole 111.

[0026] like Figure 12As shown, in some embodiments, the first locking structure 13 may include a body 131 and a protrusion 132. The body 131 may be longitudinally elongated. The body 131 may be elongated. The protrusion 132 protrudes from one side of the body 131 and extends along the length direction of the body 131. The protrusion 132 may protrude toward the first sidewall 11a. In some embodiments, the inner wall surface of the first sidewall 11a is provided with a snap-fit ​​groove 114, which may extend from the third sidewall 11c to the fourth sidewall 11d. The snap-fit ​​groove 114 may span all the terminal holes 111. In some embodiments, the snap-fit ​​groove 114 may also be located in some of the terminal holes 111. The snap-fit ​​groove 114 may communicate with the through hole 113. When the first locking structure 13 is inserted through the through hole 113, the protrusion 132 may slide into the snap-fit ​​groove 114 and slide along the length direction of the snap-fit ​​groove 114, and snap into the snap-fit ​​groove 114. That is, through the engagement of the snap-fit ​​groove 114 and the protrusion 132, the first locking structure 13 can be fixed in the housing 11, and the first terminal 12 can be fixed. In some embodiments, a limiting groove 133 is provided on the side of the body 131 opposite to the protrusion 132. There can be multiple limiting grooves 133, and in some embodiments there can be four limiting grooves 133. Each limiting groove 133 can be provided in a one-to-one correspondence with the first terminal 12. When the first locking structure 13 penetrates the housing 11, each first terminal 12 can be snapped and fixed with the corresponding limiting groove 133, thereby achieving locking.

[0027] By employing the first locking structure 13, the first terminal 12 can be more securely engaged with the housing 11, and the holding force can be greater. In some embodiments, the first locking structure 13 can be a terminal retainer (TPA).

[0028] For example Figures 2 to 4 As shown, in some embodiments, the board-end connector 20 may include a fixing plate 21 and a second terminal 22 disposed on the fixing plate 21. The second terminal 22 may extend from two opposite sides in the thickness direction of the fixing plate 21. When the board-end connector 20 mates with the wire-end connector 10, the second terminal 22 is at least partially inserted into the wire-end connector 10. Specifically, the second terminal 22 may be inserted through the terminal hole 111 to contact the first terminal 12 to achieve current and signal transmission. The snap-fit ​​structure 30 may be at least partially disposed on the fixing plate 21.

[0029] In some embodiments, the snap-fit ​​structure 30 includes a hook 23 and a snap-fit ​​112 that cooperate with each other. The hook 23 may be disposed on the board-end connector 20, specifically, it may be disposed on one side of the second terminal 22 and spaced apart from the second terminal 22. The direction in which the hook 23 extends may be the same as the direction in which the second terminal 22 extends. The side of the hook 23 opposite to the second terminal 22 has a snap-fit ​​protrusion 231. The snap-fit ​​112 is disposed on the housing 11. Specifically, the snap-fit ​​112 may be disposed on the side of the first sidewall 11a opposite to the terminal hole 111. When the board connector 20 is mated with the wire connector 10, the end of the snap fastener 112 away from the board connector 20 can be pressed, and the hook 23 can be inserted into the snap fastener 112. Releasing the snap fastener 112 will cause the hook 23 to engage with the snap fastener 112. When the board connector 20 is separated from the wire connector 10, the end away from the board connector 20 can be pressed to separate the hook 23 from the snap fastener 112. Then, the board connector 20 can be separated from the wire connector 10 by pulling either the wire connector 10 or the board connector 20.

[0030] In some embodiments, the snap fastener 112 may include a pressing portion 1121 and a fastening portion 1122. The pressing portion 1121 is generally a frame structure that is generally parallel to the first sidewall 11a, and defines a fastening hole 1120 on its inner side. The fastening portion 1122 is disposed at one end of the pressing portion 1121 facing the first end 1101, and may extend toward the first sidewall 11a. In some embodiments, the pressing portion 1121 and the fastening portion 1122 may be generally integrally formed. When the board-end connector 20 mates with the wire-end connector 10, the hook 23 may extend between the snap fastener 112 and the first sidewall 11a and fasten with the fastening portion 1122.

[0031] In some embodiments, a channel 110 is formed between the snap fastener 112 and the housing 11. Specifically, the pressing part 1121 is spaced apart from the first sidewall 11a, forming the channel 110. The channel 110 can be used for the insertion of the second locking structure 40 and the hook 23. The second locking structure 40 is movably inserted between the snap fastener 112 and the housing 11, that is, movably inserted into the channel 110. When the board end connector 20 and the wire end connector 10 are mated in place, the second locking structure 40 can support the pressing part 1121, thereby preventing the pressing part 1121 from being accidentally pressed. Even if the pressing part 1121 is accidentally pressed, the fastening part 1122 cannot be lifted, that is, it cannot disengage from the hook 23. In other words, the second locking structure 40 can play a secondary locking role.

[0032] In some embodiments, the snap fastener 112 further includes a connecting portion 1123, which is disposed on two opposite sides of the pressing portion 1121 and connected to the first sidewall 11a. The connecting portion 1123 may be located in the middle section of the pressing portion 1121, thereby facilitating pressing at one end of the pressing portion 1121.

[0033] In some embodiments, the snap fastener 112 is provided with a first limiting structure 1124 and a second limiting structure 1125, which are spaced apart between the first end 1101 and the second end 1102, and can limit the movement distance of the second locking structure 40. The first limiting structure 1124 can be formed by the fastening part 1122, and the second limiting structure 1125 can protrude from the pressing part 1121.

[0034] like Figures 5 to 9 as well as Figure 13 As shown, in some embodiments, the second locking structure 40 may include an insertion portion 41 and a support portion 42. The insertion portion 41 may be longitudinally arranged and at least partially inclined. The insertion portion 41 is movably inserted between the snap fastener 112 and the housing 11. Specifically, the insertion portion 41 is movably inserted into the channel 110 and is movable to contact the first limiting structure 1124. The support portion 42 may be disposed at one end of the insertion portion 41 and may be bent to fit with the insertion portion 41. The support portion 42 and the insertion portion 41 are connected by a connecting arm 43. A U-shaped opening 45 may be defined between the support portion 42, the insertion portion 41, and the connecting arm 43. In some embodiments, the support portion 42 has a blocking portion 44 on the side opposite to the insertion portion 41. The cross-sectional dimension of the blocking portion 44 may be larger than that of the support portion 42 and larger than that of the channel 110, which facilitates user grip and serves as a limiting function.

[0035] In some embodiments, the housing 11 is provided with guide grooves 115 for the movement of the second locking structure 40. Specifically, there can be two guide grooves 115, which can be provided on two opposite sides of the channel 110. Specifically, the third sidewall 11c and the fourth sidewall 11d can be provided with extending protrusions 118. The extending protrusions 118 on the third sidewall 11c can extend toward the fourth sidewall 11d, and the extending protrusions 118 on the fourth sidewall 11d can extend toward the third sidewall 11c. The gap between the extending protrusions 118 and the first sidewall 11a can form the guide grooves 115.

[0036] In some embodiments, the second locking structure 40 further includes a sliding portion 46, which can be two. The two sliding portions 46 can be arranged one-to-one with the two guide grooves 115 and can be slidably arranged in the guide grooves 115. The sliding portion 46 can be a longitudinally elongated sheet.

[0037] In some embodiments, a locking structure 50 is provided between the second locking structure 40 and the housing 11, which allows the second locking structure 40 and the housing 11 to be locked at a set position. In some embodiments, the locking structure 50 may include a latch 116 and a locking groove 47. The latch 116 may be disposed on the inner side of the groove wall of the guide groove 115, and the locking groove 47 may be formed on the second locking structure 40, specifically on the outer side wall of the sliding portion 46, and may cooperate with the latch 116. In some embodiments, each sliding portion 46 is provided with at least two locking grooves 47 at intervals along the sliding direction. In some embodiments, there may be two locking grooves 47, which are sequentially arranged along the insertion direction and may correspond to a first position and a second position, respectively. When the locking groove 47 farther from the support portion 42 cooperates with the latch 116, the second locking structure 40 is located in the first position, and when the locking groove closer to the support portion 42 cooperates with the latch 116, the second locking structure 40 is located in the second position. When the second locking structure 40 is in the first position, the pressing part 1121 is at least partially disposed between the insertion part 41 and the support part 42, specifically, it may be located at the U-shaped opening 45. When the second locking structure 40 is in the second position, the pressing part 1121 may be located on and in contact with the support part 42, and when the pressing part 1121 is pressed, the pressing is ineffective due to the support of the support part 42.

[0038] See also Figures 2 to 4 Before the wire-end connector 10 mates with the board-end connector 20, the second locking structure 40 can be pre-installed with the wire-end connector 10, at which time the second locking structure 40 can be in the first position. The first limiting structure 1124 can prevent the second locking structure 40 from deforming under force and can also play a role in stopping forward movement. The second limiting structure 1125 can play a role in stopping backward movement. The second locking structure 40 is locked by the locking structure 50, at which time the locking structure 50 can provide friction for the next step of final locking.

[0039] When the wire connector 10 mates with the board connector 20, the hook 23 can be inserted into the channel 110 and engage with the fastening part 1122. At the same time, one end of the insertion part 41 of the second locking structure 40 can be lifted by the hook 23, and the insertion part 41 of the second locking structure 40 exceeds the first limiting structure 1124, that is, it can be engaged between the first limiting structure 1124 and the pressing part 1121. At this time, the axial constraint of the second locking structure 40 is released, and the blocking part 44 of the second locking structure 40 can be pushed. Its pushing force needs to overcome the friction generated by the engagement of the latch 116 of the housing 11 and the locking groove 47 of the second locking structure 40 when the second locking structure 40 is in the first position. At this time, the second locking structure 40 moves to the second position, and the latch 116 of the housing 11 engages with the next locking groove 47 of the second locking structure 40. The buckle 112 is pressed by the second locking structure 40 and cannot be pressed to unlock, that is, the second-level lock is completed. It should be noted that the frictional force generated by the engagement of the latch 116 of the housing 11 with the locking groove 47 of the second locking structure 40 can be adjusted by the size and angle of the latch.

[0040] After the secondary lock is completed, the latch 116 engages with the lock slot 47, providing unlocking force. This force can be adjusted by the size and angle of the latch. When unlocking is required, the blocking part 44 can be pulled to overcome the unlocking force, causing the second locking structure 40 to move away from the housing 11. The support part 42 disengages from the pressing part 1121, and the wire connector 10 can be pressed to unlock normally.

[0041] By adding a second locking structure, which can be a CPA, false locking can be prevented, providing stability and safety when the connector transmits current.

[0042] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A connector assembly, characterized in that, include: The wire connector (10) includes a housing (11), a first terminal (12) and a first locking structure (13), wherein the first terminal (12) is at least partially inserted into the housing (11), and the first locking structure (13) is inserted into the housing (11) in a direction perpendicular to the insertion direction of the first terminal (12) to lock the housing (11) and the first terminal (12). The board-end connector (20) mates with the wire-end connector (10); A snap-fit ​​(112) structure (30) is provided on the board end connector (20) and the wire end connector (10) to fix the board end connector (20) and the wire end connector (10) when the board end connector (20) and the wire end connector (10) are mated. The second locking structure (40) is movably disposed on the wire end connector (10) and locks the snap fastener (112) structure (30) after the board end connector (20) and the wire end connector (10) are mated in place.

2. The connector assembly according to claim 1, characterized in that, The housing (11) includes a first sidewall (11a) and a second sidewall (11b) disposed opposite to each other, and a third sidewall (11c) and a fourth sidewall (11d) disposed opposite to each other; the third sidewall (11c) and the fourth sidewall (11d) are spaced apart between the first sidewall (11a) and the second sidewall (11b); The third sidewall (11c) and / or the fourth sidewall (11d) of the housing (11) are provided with a perforation (113), and the first locking structure (13) is detachably inserted through the perforation (113).

3. The connector assembly according to claim 2, characterized in that, The first locking structure (13) includes a body (131) and a protrusion (132); the body (131) is longitudinally arranged, and the protrusion (132) protrudes from one side of the body (131) and extends along the length direction of the body (131); The inner wall surface of the first sidewall (11a) is provided with a snap-fit ​​groove (114), which is connected to the through hole (113) for the protrusion (132) to slide into and snap-fit ​​with the protrusion (132).

4. The connector assembly according to claim 3, characterized in that, A limiting groove (133) is provided on the side of the body (131) opposite to the protrusion (132), and the limiting groove (133) is provided in a one-to-one correspondence with the first terminal (12).

5. The connector assembly according to claim 1, characterized in that, The snap fastener (112) structure (30) includes a hook (23) and a snap fastener (112) that cooperate with each other. The hook (23) is disposed on the board end connector (20), and the snap fastener (112) is disposed on the housing (11). The housing (11) includes a first end (1101) that mates with the board end connector (20) and a second end (1102) that is disposed opposite to the first end (1101). The snap fastener (112) includes a pressing part (1121) and a fastening part (1122); the fastening part (1122) is disposed at the end of the pressing part (1121) facing the first end (1101), and when the board end connector (20) is mated with the wire end connector (10), the hook (23) is fastened with the fastening part (1122); The second locking structure (40) is movably inserted between the snap fastener (112) and the housing (11), and supports the pressing part (1121) after the plate end connector (20) and the wire end connector (10) are mated in place.

6. The connector assembly according to claim 5, characterized in that, A channel (110) is formed between the snap fastener (112) and the housing (11) for the second locking structure (40) and the hook (23) to be inserted. The buckle (112) is provided with a first limiting structure (1124) and a second limiting structure (1125). The first limiting structure (1124) and the second limiting structure (1125) are spaced apart between the first end (1101) and the second end (1102) to limit the movement distance of the second locking structure (40).

7. The connector assembly according to claim 5, characterized in that, The second locking structure (40) includes an insertion part (41) and a support part (42). The insertion part (41) is movably inserted between the snap fastener (112) and the housing (11), and the support part (42) is disposed at one end of the insertion part (41). When the second locking structure (40) is in the first position, the pressing part (1121) is at least partially disposed between the insertion part (41) and the support part (42); When the second locking structure (40) is in the second position, the pressing part (1121) is located on the support part (42) and in contact with the support part (42).

8. The connector assembly according to claim 1, characterized in that, The housing (11) is provided with a guide groove (115) for the second locking structure (40) to move. A locking structure (50) is provided between the second locking structure (40) and the housing (11); the locking structure (50) includes a latch (116) and a locking groove (47); the latch (116) is disposed on the inner side of the groove wall of the guide groove (115), and the locking groove (47) is formed on the second locking structure (40) and cooperates with the latch (116).

9. The connector assembly according to claim 8, characterized in that, The second locking structure (40) includes a sliding part (46) that slides in the guide groove (115); the sliding part (46) is provided with at least two locking grooves (47) at intervals along the sliding direction.

10. The connector assembly according to claim 1, characterized in that, The board-end connector (20) includes a fixing plate (21) and a second terminal (22) disposed on the fixing plate (21). When the board-end connector (20) is mated with the wire-end connector (10), the second terminal (22) is at least partially inserted into the wire-end connector (10). The snap-fit ​​(112) structure (30) is at least partially disposed on the fixing plate (21).