CN220672885U - Connector assembly - Google Patents

Abstract

The utility model relates to a connector assembly, which includes a board end connector, a wire end connector, an operating part and a clamping part. The board end connector includes a base and an extension tube body, and the extension tube body forms a bump laterally. The wire end connector includes a body and a wire connecting part. The body has a shell and a limiting part. The shell forms an inner guide groove and a side opening. The operating member has a pivot part, a first extension arm and a second extension arm. The latch has a main plate, a hook, a first stopper, and a second stopper. When the board end connector and the wire end connector are in the initial state, the second extension arm is away from the inner guide groove, allowing the bump to enter the accommodation space; when switched to the engagement state, the bump and the third When an extension arm comes into contact, the latch can be forced to switch between the first buckling position and the second buckling position.

Description

Connector components

Technical field

The utility model relates to a connector assembly, in particular to a connector assembly having a wire end connector and a board end connector.

Background technique

The electrification and intelligence of vehicles have become a future development trend, and the automotive electrical connectors used often need to have high reliability and waterproof performance. Automotive electrical connectors are mainly used for the transmission of electronic signals and power, especially existing high-current automotive electrical connector components. Possible designs include designing the interface part of the electrical connector to have a waterproof structure. For example, a rubber sealing ring or fastening device is used separately at the wire end or board end of the connector to protect the interface position, or waterproof glue or sealant is used to seal the circuit board and wires to prevent water or dust from intruding inside, ensuring that the vehicle safety and long-term stability. In addition, high-current electrical connectors must also pay attention to whether they have characteristics that cannot be easily opened. If they can be easily opened, it may be dangerous for users to operate.

In view of this, the present invention proposes a connector assembly for vehicles to solve the problems faced by the background art such as insufficient connector tightness or insufficient waterproof performance.

Utility model content

The purpose of this utility model is to provide a connector assembly, which includes a plug-in combination of a line end connector and a board end connector. The board end connector is disposed on a printed circuit board, wherein the board end and the line end and the board end and The joints of the printed circuit boards each contain rubber sealing rings, which are waterproof and dustproof, and do not require additional dispensing of glue. In addition, the extension arm of the operating part and the side opening of the wire end connector housing have special shapes to match each other. To achieve a better actuation method, the connector can achieve effective pressing, and the operation process is more intuitive and has the effect of preventing misoperation. Therefore, when the wire end connector is assembled with the printed circuit board end connector, the connector can be tightly coupled and easy to open can be avoided. In addition, the connector assembly of the present invention also includes a locking fit between an operating piece and a snapping piece, which provides a stronger locking force when the wire end connector and the board end connector are connected, making it difficult for the connector to disengage.

In order to achieve the above object, the present utility model discloses a connector assembly, which includes a board end connector, a line end connector, an operating part and a clamping part. The board end connector includes a base and an extension tube body. The extension tube body is connected to the base. The extension tube body forms a bump laterally. The wire end connector includes a body and a wire connection part. The body is used to be sleeved on the extension tube body. The body has an outer shell and at least one limiting portion. The outer shell is formed with an inner guide groove and a side opening. The inner guide groove is formed on the inside of the outer shell. The side opening has a A pivot area and an actuation area, the limiting part is connected to the housing. The wire connection part extends from the body. The operating member is pivoted on the wire end connector and can be switched between a locking position and an unlocking position. The operating member has a pivoting part, a first extending arm and a second extending arm. The pivoting part is provided on the In the pivot area, the first extension arm and the second extension arm are provided in the action area and jointly define a receiving space. The engaging member is provided on the operating member. The engaging member has a main plate, at least one hook, at least a first stopper, and a second stopper. The hook, the first stopper and the second stopper are formed on one side of the main board. Wherein, when the board end connector and the line end connector are in an initial state and the operating member is in the unlocking position, the second extension arm is away from the inner guide groove, allowing the bump to enter the container along the inner guide groove. When the board end connector and the line end connector are switched from the initial state to an engagement state, the bump contacts the first extension arm, causing the operating member to be unlocked with the pivot portion as the center. The position is rotated to the locking position; when the board end connector and the line end connector are in the joint state and the operating member is in the locking position, the engaging member can be forced to a first buckling position and a second Switch between buckle positions.

In one embodiment, the inner guide groove is connected to the action area. When the board end connector and the wire end connector are switched from the initial state to the joint state, the operating member is centered on the pivot part. Rotating from the unlocking position to the locking position, after the protrusion enters the accommodation space through the inner guide groove, it moves in the action area along with the first extension arm and the second extension arm.

In one embodiment, the operating member includes two side bars and a cross bar connected to the side bar. The pivot part, the first extension arm and the second extension arm are formed on the side bar. The crossbar further has a rod body and an engaging portion, the engaging portion is formed on one side of the rod body, and the engaging piece is provided on the engaging portion.

In one embodiment, the rod body has at least a first through hole, at least a second through hole, and a third through hole, the engaging portion has at least a first groove and at least a second groove, and the hook The first stopper passes through the first through hole, the first stopper passes through the second throughhole, and the second stopper passes through the third throughhole; when the engaging member is located at the first buckle position, the engaging member is close to the housing, and the hook is engaged in the first groove; when the engaging member is in the second engaging position, the engaging member is away from the housing, and the hook is engaged fit into the second groove.

In one embodiment, the rod body further has at least a first stopper, and the housing further has a second stopper. When the engaging member is in the first buckling position, the first stopper and The first stopper parts do not interfere with each other, the second stopper part is close to the second stopper part, and the second stopper part limits the second stopper part accordingly, when the engaging part is located at the In the second buckling position, the buckling member is away from the housing, the first stopper and the first stopper interfere with each other, and the second stopper is away from the second stopper.

In one embodiment, the side rod has a protruding portion and is disposed in the limiting portion. When the operating member is switched between the locking position and the unlocking position, the protruding portion moves and is limited to the The limiting part.

In one embodiment, the housing forms two first positioning grooves and two second positioning grooves, and the operating member has two positioning protrusions. When the operating member is in the unlocking position, the positioning protrusions engage with the third positioning groove. A positioning groove, when the operating member is in the locking position, the positioning protrusion engages with the second positioning groove.

In one embodiment, the base has an upper surface and a lower surface. The upper surface is provided with an upper rubber ring, and the lower surface is provided with a lower rubber ring.

In one embodiment, the base is disposed between a casing and a circuit board, the upper surface faces the casing and the upper rubber ring is tightly attached to the casing, the lower surface faces the circuit board and the The lower rubber ring is tightly attached to the circuit board, the casing has an opening, the extension tube extends outward from the opening, and the upper rubber ring surrounds the opening.

In one embodiment, the board-end connector further includes terminals that are electrically connected to the circuit board. The lower rubber ring surrounds the terminals. The wire-end connector further includes an elastic barrier ring. When the board The end connector and the line end connector are in the engaged state, and the elastic blocking ring is tightly matched with the extension tube body.

After referring to the accompanying drawings and the subsequently described embodiments, those skilled in the art can understand other objects of the present invention, as well as the means and embodiments of the present invention.

Description of the drawings

Figure 1 is a schematic diagram of the connector assembly and housing of the present utility model;

Figure 2 is an exploded view of the connector assembly and circuit board of the present utility model;

Figure 3 is an exploded view of the connector assembly and circuit board of the present invention from another perspective;

Figure 4 is a schematic diagram of the board-end connector of the present invention;

Figure 5 is a schematic diagram of the board-end connector of the present invention from another perspective;

Figure 6 is a schematic diagram of the wire end connector, operating part and clamping part of the present utility model;

Figure 7 is a schematic view of the wire end connector, operating part and clamping part of the present utility model from another perspective;

Figure 8 is a partial cross-sectional view of the connector assembly of the present invention;

Figure 9 is a schematic diagram of the connector assembly of the present invention in its initial state;

Figure 10 is a side view of the connector assembly of the present invention in its initial state;

Figure 11 is a side view of the connector assembly of the present invention switching from the initial state to the engagement state;

Figure 12 is a side view of the connector assembly of the present invention in the engaged state;

Figure 13 is a cross-sectional view of the connector assembly of the present invention in an initial state;

Figure 14 is a cross-sectional view of the connector assembly of the present invention switched from the initial state to the engagement state;

Figure 15 is a cross-sectional view of the connector assembly of the present invention in a joined state;

Figure 16 is a schematic diagram of the locking member of the present utility model in the second buckling position;

Figure 17 is a schematic diagram of the locking member of the present utility model in the first buckling position;

Figure 18 is a cross-sectional view of the locking member of the present utility model in the second buckling position; and

Figure 19 is a cross-sectional view of the locking member of the present invention at the first buckling position.

Explanation of reference symbols:

100 Connector Assemblies

200 Chassis

2001 opening

300 circuit board

1 board connector

11 base

111 upper surface

1111 Rubber ring

112 lower surface

1121 lower rubber ring

12 extension tube body

121 bumps

13 terminals

2 wire end connector

21 Ontology

211 shell

2111 Inner guide groove

2112 side opening

21121 Pivot Zone

21122 action area

2113 second stopper

2114 first positioning groove

2115 second positioning groove

212 Limiting part

22 Wire connection part

23 elastic barrier ring

3 operating parts

31 pivot part

32 first extension arm

33 Second extension arm

34 side lever

341 bulge

35 crossbar

351 rod body

3511 First Piercing

3512 Second Piercing

3513 third piercing

3514 first stop

352 engaging part

3521 first groove

3522 second groove

36 Positioning bumps

4 clips

41 motherboard

42 hook

43 first stopper

44 Second stopper

C accommodation space.

Detailed ways

The content of the present utility model will be explained below through examples. The embodiments of the present utility model are not intended to limit the utility model to be implemented in any specific environment, application or special manner as described in the embodiments. Therefore, the descriptions related to the embodiments are only for the purpose of explaining the present invention and are not used to limit the present invention. It should be noted that in the following embodiments and drawings, some components not directly related to the present invention have been omitted and not shown, and the dimensional relationship between the components in the drawings is only for easy understanding and is not used to limit the actual proportions. .

See Figure 1 to Figure 3. FIG. 1 is a schematic diagram of the connector assembly 100 of the present invention installed in the casing 200 . 2 and 3 are exploded views of the connector assembly 100 and the circuit board 300 of the present invention. The connector assembly 100 is fixed on the circuit board 300 , and the housing 200 is used for partially disposing the connector assembly 100 . The connector assembly 100 includes a board end connector 1, a wire end connector 2, an operating member 3 and a snapping member 4. The wire end connector 2 is sleeved on the board end connector 1 and the operating member 3 is pivoted on the board end connector 1. On the wire end connector 2, the engaging member 4 is provided on the operating member 3. Applying external force to rotate the operating member 3 or operating the wire end connector 2 can drive the wire end connector 2 to slide back and forth on the board end connector 1.

Please refer to Figure 4 and Figure 5 together. The board end connector 1 includes a base 11, an extension tube 12 and two terminals 13. The extension tube 12 is extended and connected to the base 11. The extension tube 12 laterally forms two terminals. Bump 121. The base 11 is disposed between the casing 200 and the circuit board 300 and has an upper surface 111 and a lower surface 112 respectively formed on two opposite sides of the base 11 . The upper surface 111 faces the casing 200 and allows the board connector 1 to abut against the casing 200 . An upper rubber ring 1111 is provided on the upper surface 111 to closely fit the casing 200 . The lower surface 112 faces the circuit board 300 , allowing the board connector 1 to abut against the circuit board 300 , and a lower rubber ring 1121 is provided on the lower surface 112 to closely fit the circuit board 300 .

The casing 200 has an opening 2001. When the casing 200 is fixed on the board end connector 1, the extension tube 12 extends outward from the opening 2001, and the upper rubber ring 1111 surrounds the opening 2001. At the same time, the terminal 13 is electrically connected to the circuit board 300 , and the lower rubber ring 1121 surrounds the terminal 13 . In detail, in this embodiment, the upper rubber ring 1111 and the lower rubber ring 1121 can be made of rubber material. The upper rubber ring 1111 can be used for tight connection between the casing 200 and one side of the board end connector 1 to avoid moisture or dust. Entering the interior from the casing 200 , the lower rubber ring 1121 can be used for tight connection between the circuit board 300 and the other side of the board connector 1 to further isolate possible moisture or dust between the circuit board 300 and the board connector 1 , so that both the upper and lower positions have a sealing effect. It should be noted that two terminals are used as an example in this embodiment, and their number can be adjusted according to actual needs and is not limited here.

Please refer to FIG. 6 and FIG. 7 together. The wire end connector 2 includes a body 21 and a wire connecting portion 22 . The main body 21 is used to be sleeved on the extension tube body 12, and the wire connecting portion 22 extends outward from the main body 21 and can be used for wires to pass through. The body 21 has a shell 211 and two limiting parts 212. The shell 211 has two inner guide grooves 2111, openings 2112 on both sides, a second stopper 2113, two first positioning grooves 2114, and two second positioning grooves. slot2115. Two inner guide grooves 2111 are formed on opposite inner sides of the housing 211 for sliding the protrusions 121 of the extension tube body 12 . The side openings 2112 are respectively formed on opposite sides of the housing 211 and have a pivot area 21121 and an actuating area 21122. The inner guide groove 2111 is connected with the actuating area 21122. The first positioning groove 2114 and the second positioning groove 2115 are formed on the same side of the housing 211 (another first positioning groove 2114 and another second positioning groove 2115 are formed on the opposite side of the housing 211). In addition, the limiting portions 212 are respectively connected to opposite sides of the housing 211. When the operating member 3 is rotated by an external force, the operating member 3 can partially move in the limiting portions 212.

Please refer to FIG. 8 and FIG. 18 together. The wire end connector 2 also includes an elastic blocking ring 23 surrounding the wire end connector 2 . When the board end connector 1 and the wire end connector 2 are joined, the elastic blocking ring 23 tightly fits the extension tube body 12 of the board end connector 1. At this time, the elastic blocking ring 23 will fill the mutually nested board end connectors. 1 and the internal space of the wire end connector 2, so that the board connector 1 can tightly engage the wire end connector 2. In this embodiment, the elastic blocking ring 23 can be a silicone piece, which is used as a sealing member in the connector to prevent the connector assembly 100 from entering dust, water, and other impurities.

Further describing the operating member 3, the operating member 3 is pivoted on the wire end connector 2 and can be switched between a locking position and an unlocking position. As shown in FIGS. 6 and 7 , the operating member 3 has two pivot parts 31 , two first extension arms 32 and two second extension arms 33 . The pivot parts 31 are provided in the pivot area 21121 of the side opening 2112 . The extension arm 32 and the second extension arm 33 are disposed in the action area 21122 of the side opening 2112, and the first extension arm 32 and the second extension arm 33 jointly define an accommodation space C.

In addition, the operating part 3 also includes two side bars 34 , a cross bar 35 and two positioning protrusions 36 . The pivot portion 31 , the first extension arm 32 and the second extension arm 33 are formed on the side rod 34 . The cross bar 35 is connected between the two side bars 34 and has a rod body 351 and an engaging portion 352. The engaging portion 352 is formed on one side of the rod body 351, and the engaging member 4 is provided on the engaging portion 352 for engaging. The combination of the closing piece 4 and the operating piece 3 is in a blocking state or a separated state on the wire end connector 2 . The positioning protrusion 36 is formed on the inner side of the side rod 34, and the side rod 34 has a protruding portion 341 and is disposed in the limiting portion 212. When the operating member 3 is in the unlocking position, the positioning protrusion 36 engages with the first Positioning groove 2114. When the operating member 3 is in the locking position, the positioning protrusion 36 engages with the second positioning groove 2115. When the operating member 3 is switched between the locking position and the unlocking position, the protruding part 341 moves in the limiting part 212, and the limiting part 212 can limit and stop the protruding part 341 to avoid The operating member 3 is detached from the wire end connector 2 during operation. The engagement between the positioning protrusion 36 and the first positioning groove 2114 or the second positioning groove 2115 allows the user to intuitively feel the positioning feel.

In detail, the rod body 351 has two first through holes 3511, two second through holes 3512, a third through hole 3513 and two first stop portions 3514. The first through holes 3511, the second through holes 3512 and the third through holes. 3513 can respectively be used for partial engagement pieces 4 to pass through, and the first stopper 3514 can stop the engagement pieces 4 . In addition, the engaging portion 352 has two first grooves 3521 and two second grooves 3522. The first grooves 3521 are arranged oppositely on both sides of the engaging portion 352, and the second grooves 3522 are arranged oppositely on the engaging portion 352. On both sides of the joint portion 352, the groove openings of the first groove 3521 and the second groove 3522 on opposite sides face the corresponding side rods 34 respectively, and the first groove 3521 and the The second groove 3522 can be engaged by the engaging member 4 .

Further describing the engaging part 4, the engaging part 4 is arranged on the operating part 3. When the board end connector 1 and the wire end connector 2 are engaged and the operating part 3 is in the locked position, the engaging part 4 can be forced by a first Switch between the buckling position (shown in Figures 1 and 19) and the second buckling position (shown in Figures 9 and 18). Please refer to Figures 6 and 7 again. The engaging member 4 has a main plate 41, two hooks 42, two first stoppers 43 and a second stopper 44. The hooks 42, the first stopper 44 are The stopper 43 and the second stopper 44 are formed on one side of the main plate 41 , and the side faces the rod body 351 of the operating member 3 . The hook 42 and the first stopper 43 have a body extending toward the operating member 3, and their rear ends respectively have protruding structures for the hook 42 to respectively engage the first groove 3521 and the first stopper 43. The second groove 3522 can be used by the first stopper 43 to resist the operating member 3 . Specifically, the hook 42 passes through the first through hole 3511, the first stopper 43 passes through the second through hole 3512, and the second stopper 44 passes through the third through hole 3513. , the engaging member 4 is provided on the operating member 3 through the above assembly.

The following describes the operational relationship of the connector assembly 100 in detail. As shown in Figures 9 to 15, when the board end connector 1 and the line end connector 2 are in an initial state and the operating member 3 is in the unlocking position, the positioning protrusion 36 engages the first positioning groove 2114, and the second The extension arm 33 is away from the inner guide groove 2111 to allow the protrusion 121 to enter the accommodation space C along the inner guide groove 2111 (see FIGS. 10 and 13 ). When the board end connector 1 and the wire end connector 2 are switched from the initial state to the joint state, after the bump 121 contacts the first extension arm 32, the bump 121 will push against the first extension arm 32 so that the operating member 3 Following the rotation (see Figures 11 and 14), the user can also assist in applying force on the crossbar 35 to assist in the close engagement of the board end connector 1 and the line end connector 2, as well as the synchronization of the operating member 3 Rotate. After the bump 121 enters the accommodating space C through the inner guide groove 2111, the first extension arm 32 and the second extension arm 33 move in the actuating area 21122. At this time, the bump 121 can move from the lowest position to the highest position in the actuating area 21122. position, and the positioning protrusion 36 switches from the first positioning groove 2114 and snaps into the second positioning groove 2115, causing the operating member 3 to rotate from the unlocking position to the locking position with the pivot portion 31 as the center (see Figure 12 and Figure 15). In other words, when the board end connector 1 and the line end connector 2 are switched from the initial state to the engaged state, if the second extension arm 33 first interferes with the bump 121, the line end connector 2 and the operating member 3 cannot continue. Action. Therefore, the second extension arm 33 has the function of limiting and stopping, and also has the effect of preventing misoperation.

The operating relationship between the operating member 3 and the engaging member 4 will be described in detail below. Please refer to Figure 6, Figure 16 to Figure 19 together. When the board end connector 1 and the line end connector 2 are in the joint state and the operating member 3 is in the locking position, the hook 42 of the engaging member 4 is in the first locking position. At this time, the engaging member 4 is close to the housing 211, the hook 42 is engaged in the first groove 3521, and the first stopper 43 and the first stopper 3514 do not interfere with each other. , the second stopper 44 is close to the second stopper 2113, and the second stopper 2113 correspondingly limits the second stopper 44. At this time, the assembly of the engaging part 4 and the operating part 3 is in a blocking state on the connector assembly 100, and the operating part 3 cannot be moved; when the engaging part 4 is subjected to external force, the hook 42 moves from the first buckling position. Switch to the second buckling position, the engaging member 4 is away from the housing 211 , the hook 42 is engaged in the second groove 3522 , and the first stopper 43 and the first stopper 3514 are mutually exclusive. interference, the second stopper 44 moves away from the second stopper 2113 . At this time, the assembly of the engaging member 4 and the operating member 3 is in a separated state on the connector assembly 100, allowing the operating member 3 to be changed between the locked position or the unlocked position. When the hook 42 is engaged with the first groove 3521 or the second groove 3522, there will be an obvious engaging sound, which also allows the user to intuitively feel the click in place. In addition, when the assembly of the engaging member 4 and the operating member 3 is in a stop state, the engaging member 4 can be accommodated in the rod body 351 of the operating member, thereby preventing the user from accidentally touching the engaging member 4 and causing loosening.

Similarly, when you want to release the board-end connector 1 and the line-end connector 2 from the joint state, first apply force to make the hook 42 of the engaging member 4 be in the second buckling position, and then apply force to make the operating member 3 gradually rotates from the locking position to the unlocking position. At this time, the bump 121 will first move with the first extension arm 32 and the second extension arm 33 in the accommodation space C, and then as the operating member 3 rotates, the second extension arm 33 will gradually give way away from the inner guide groove 2111 (that is, the second extension arm 33 does not overlap with the inner guide groove 2111 in the vertical direction of the drawing), so that the bump 121 can escape from the accommodation space C and enter the inner guide groove 2111. In the slot 2111, finally the board end connector 1 and the line end connector 2 can be separated. To sum up, the connector assembly of the present invention includes a combination of a board end connector, a wire end connector, an operating part and a latching part. Through the specially designed side opening shape of the operating part, the first and second extension arms , combined with the bumps of the board-end connector, and through the locking and tight fit of the operating parts and the engaging parts, the connector components with high current can be joined more tightly, making it difficult for the operating parts to detach from the wire-end connectors , and the upper and lower surfaces of the board-end connector include rubber seals. On the one hand, it can reduce the dispensing steps of waterproof glue or sealant during product assembly, and on the other hand, it has the effect of double-sided waterproofing. As a result, the manufacturing cost can be saved and the stability of the connector can be increased.

The above-mentioned embodiments are only used to illustrate the embodiments of the present utility model and explain the technical features of the present utility model, and are not intended to limit the protection scope of the present utility model. Any changes or equivalence arrangements that can be easily accomplished by those skilled in the art fall within the scope claimed by the present utility model, and the scope of rights protection of the present utility model shall be determined by the claims.

Claims (10)

1. A connector assembly, comprising:

the board end connector comprises a base and an extension pipe body, wherein the extension pipe body is connected with the base, and a bump is formed on the lateral side of the extension pipe body;

a wire end connector comprising:

the body is sleeved on the extension pipe body and is provided with a shell and at least one limiting part, the shell is provided with an inner guide groove and a side opening, the inner guide groove is formed on the inner side of the shell, the side opening is provided with a pivoting area and an actuating area, and the limiting part is connected with the shell;

a wire connecting portion extending from the body;

the operation piece is pivoted on the line end connector and can be switched between a locking position and an unlocking position, the operation piece is provided with a pivoting part, a first extension arm and a second extension arm, the pivoting part is arranged in the pivoting area, and the first extension arm and the second extension arm are arranged in the actuating area and jointly define a containing space;

the clamping piece is arranged on the operation piece and is provided with a main board, at least one clamping hook, at least one first stopping piece and a second stopping piece, wherein the clamping hook, the first stopping piece and the second stopping piece are formed on one side of the main board;

when the board end connector and the line end connector are in an initial state and the operating piece is positioned at the unlocking position, the second extension arm is far away from the inner guide groove, and the lug is allowed to enter the accommodating space along the inner guide groove; when the board end connector and the wire end connector are switched from the initial state to an engagement state, the lug is contacted with the first extension arm, so that the operation piece rotates from the unlocking position to the locking position by taking the pivoting part as the center; when the board end connector and the line end connector are in the joint state and the operating piece is positioned at the locking position, the clamping piece can be stressed to switch between a first clamping position and a second clamping position.

2. The connector assembly of claim 1, wherein the inner guide slot is in communication with the actuation zone, and the tab moves with the first extension arm and the second extension arm in the actuation zone after entering the receiving space through the inner guide slot when the board end connector and the wire end connector are switched from the initial state to the engaged state while the operating member rotates from the unlocked position to the locked position about the pivot portion.

3. The connector assembly of claim 2, wherein the operating member comprises two side bars and a cross bar connected to the side bars, the pivot portion, the first extension arm and the second extension arm are formed on the side bars, the cross bar further comprises a rod body and a clamping portion, the clamping portion is formed on one side of the rod body, and the clamping member is arranged on the clamping portion.

4. The connector assembly of claim 3, wherein the rod body has at least one first through hole, at least one second through hole, and a third through hole, the engaging portion has at least one first groove and at least one second groove, the hook is disposed through the first through hole, the first stop member is disposed through the second through hole, and the second stop member is disposed through the third through hole; when the clamping piece is positioned at the first clamping position, the clamping piece approaches the shell, and the clamping hook is clamped in the first groove; when the clamping piece is positioned at the second clamping position, the clamping piece is far away from the shell, and the clamping hook is clamped in the second groove.

5. The connector assembly of claim 4, wherein the lever further has at least one first stop portion, the housing further has a second stop portion, when the engaging member is located at the first fastening position, the first stop portion and the first stop portion do not interfere with each other, the second stop portion is close to the second stop portion, and the second stop portion correspondingly limits the second stop portion, when the engaging member is located at the second fastening position, the engaging member is far away from the housing, the first stop portion and the first stop portion interfere with each other, and the second stop portion is far away from the second stop portion.

6. The connector assembly of claim 5, wherein the side lever has a protrusion and is disposed in the limit portion, such that the protrusion moves and is limited to the limit portion when the operating member is switched between the locked position and the unlocked position.

7. The connector assembly of claim 6, wherein the housing defines two first positioning grooves and two second positioning grooves, the operating member has two positioning protrusions, the positioning protrusions are engaged with the first positioning grooves when the operating member is in the unlocked position, and the positioning protrusions are engaged with the second positioning grooves when the operating member is in the locked position.

8. The connector assembly of claim 1, wherein the base has an upper surface and a lower surface, the upper surface having an upper rubber ring and the lower surface having a lower rubber ring.

9. The connector assembly of claim 8, wherein the base is disposed between a housing and a circuit board, the upper surface faces the housing and the upper rubber ring is tightly attached to the housing, the lower surface faces the circuit board and the lower rubber ring is tightly attached to the circuit board, the housing has an opening, the extension tube extends outwards from the opening, and the upper rubber ring surrounds the opening.

10. The connector assembly of claim 9, wherein the board-end connector further comprises terminals electrically connected to the circuit board, the lower rubber ring surrounding the terminals, the line-end connector further comprising a resilient blocking ring that is in tight fit with the extension tube when the board-end connector and the line-end connector are in the engaged state.