JP3246222U - connector assembly - Google Patents

Abstract

An object of the present invention is to provide a connector assembly for automobiles that improves connection stability and waterproof performance. A board-side connector 1 has a base 11 and an elongated tube body 12. A convex portion is formed on the side surface of the elongated tube. The cable side connector 2 has a main body 21 and a cable connection part 22. The main body includes a case and a position regulating section. The case has an internal guide groove and a side opening. The operating member 3 has a rotating part 31, a first extending arm 32, and a second extending arm 33. The engaging member 4 has a main plate, a hook portion, a first stopper, and a second stopper. When the board-side connector and the cable-side connector are in the initial state, the second extension arm separates from the internal guide groove, allowing the convex portion to enter the accommodation space. When switching to the fitted state, the engagement member can receive force and switch between the first engagement position and the second engagement position by the convex portion coming into contact with the first extension arm. . [Selection diagram] Figure 2

Description

The present invention relates to a connector assembly, and more particularly to a connector assembly including a cable side connector and a board side connector.

Electrification and smartization of automobiles are the trends of the future. Electrical connectors used in such automobiles are often required to have high reliability and waterproof performance. Automotive connectors are primarily used for electronic signal and power transmission. In particular, conventional high current automotive connector assemblies may be designed to include a waterproof structure in the connecting portion of the connector. For example, to prevent water and dust from entering the circuit board, rubber seal rings or fastening devices may be installed on the cable side of the connector or the edge of the circuit board, or waterproof adhesives or sealants may be used to protect the circuit board. By protecting the wires and lead wires, you can ensure the safety and long-term stability of your vehicle. It is also important that a high-current connector has a characteristic that it cannot be easily disconnected, and if it is easily disconnected, it may pose a danger to the user when operating the connector.

The present invention has been made in view of the above circumstances, and provides a connector assembly for automobiles that solves the problem of the conventional technology that the connection stability and waterproof performance of the connector are insufficient.

An object of the present invention is to provide a connector assembly including a cable-side connector and a board-side connector. The board-side connector is installed on the printed circuit board. Rubber seal rings with waterproof and dustproof properties are installed at the connection parts between the board-side connector and the cable-side connector, and between the board-side connector and the printed circuit board, without using any additional adhesive. Note that the extension arm of the operating member and the side opening of the case of the cable-side connector have special shapes that match each other, thereby achieving better operability. This allows the connector to achieve a high level of connection stability, more intuitive operation, and foolproof effects. As a result, when the cable-side connector is connected to the printed circuit board-side connector, the connector can be firmly connected and can be prevented from being easily disconnected. In addition, the connector assembly according to the present invention further includes an operating member and an engaging member that are engaged with each other. As a result, when the board-side connector and the cable-side connector are fitted together, a strong fitting force is obtained to prevent the connectors from coming off easily.

To achieve the above object, the present invention provides a connector assembly including a board-side connector, a cable-side connector, an operating member, and an engaging member. The board-side connector has a base and an elongated tube body. The elongated tube body is connected to the base. A convex portion is formed on the side surface of the elongated tube. The cable side connector has a main body and a cable connection part. The main body is installed to cover the elongated tube body. The main body has a case and at least one position regulating part. The case has an internal guide groove and a side opening. The internal guide groove is formed inside the case. The side opening has a rotation area and a movement area. The position regulating section is coupled to the case. The cable connection extends from the body. The operating member is pivotally attached to the cable-side connector and can be switched between a locked position and an unlocked position. The operating member includes a rotating portion, a first extending arm, and a second extending arm. The rotating part is installed in the rotating area. The first extension arm and the second extension arm are installed in the operation area and define a storage space. The engaging member is installed on the operating member. The engagement member includes a main plate, at least one hook portion, at least one first stopper, and a second stopper. The hook portion, the first stopper, and the second stopper are formed on one side of the main plate. When the board-side connector and the cable-side connector are in the initial state and the operating member is located at the unlocked position, the second extension arm separates from the internal guide groove, and the convex portion moves away from the internal guide groove. It is allowed to enter the accommodation space along the line. When the board-side connector and the cable-side connector switch from the initial state to the fitted state, the convex portion is rotated from the unlocked position to the locked position about the rotating portion. Contacting the first extension arm. When the board-side connector and the cable-side connector are in the fitted state and the operating member is located at the lock position, the engaging member receives force and moves between the first engaging position and the second engaging position. It is possible to switch between positions.

In an embodiment of the present invention, the inner guide groove and the working area communicate with each other. When the board-side connector and the cable-side connector switch from the initial state to the fitted state, and the operating member rotates from the unlocked position to the locked position about the rotating portion, the convex portion , enters the accommodation space through the internal guide groove, and then moves within the operating area together with the first extension arm and the second extension arm.

In an embodiment of the invention, the operating member has at least one side part and a lateral part connected to the side part. The rotating part, the first extension arm, and the second extension arm are formed on the side part, and the lateral part is a bar body and an engaging part formed on one side of the bar body. Further, the engaging member is installed in the engaging portion.

In an embodiment of the present invention, the bar body has at least one first through hole, at least one second through hole, and a third through hole, and the engaging part has at least one first recess and a third through hole. at least one second recess, the hook portion is installed so as to pass through the first through hole, the first stopper is installed so as to pass through the second through hole, and the hook portion is installed so as to pass through the second through hole; The stopper is installed so as to pass through the third through hole, and when the engaging member is located at the first engaging position, the engaging member approaches the case, and the hook portion is located at the first engaging position. When engaged with the recess and the engagement member is located at the second engagement position, the engagement member is separated from the case and the hook portion is engaged with the second recess.

In an embodiment of the present invention, the bar body further includes at least one first stopper part, the case further includes a second stopper part, and the engagement member is located in the first engagement position. In this case, the first stopper and the first stopper part do not interfere with each other, the second stopper is close to the second stopper part, the second stopper part limits the second stopper, and the engagement When the member is located at the second engagement position, the engagement member is separated from the case, the first stopper and the first stopper portion interfere with each other, and the second stopper interferes with the second stopper portion. away from

In an embodiment of the present invention, the side part has a protrusion installed in the position regulating part, and when the operating member is switched between the locking position and the unlocking position, the protrusion , moves within the position regulating section while being restricted by the position regulating section.

In an embodiment of the present invention, the case is formed with a first positioning recess and a second positioning recess, the operating member has a positioning protrusion, and when the operating member is located at the unlocked position, the positioning The protrusion engages with the first positioning recess, and when the operating member is located at the lock position, the positioning protrusion engages with the second positioning recess.

In an embodiment of the present invention, the base has an upper surface and a lower surface, an upper rubber ring is installed on the upper surface, and a lower rubber ring is installed on the lower surface.

In an embodiment of the present invention, the base is installed between the housing and the circuit board, the upper surface faces the housing, the upper rubber ring is in close contact with the housing, and the lower surface is , the lower rubber ring faces the circuit board, the lower rubber ring is in close contact with the circuit board, the housing has an opening, and the elongated tube extends outward from the opening. , the upper rubber ring surrounds the aperture.

In an embodiment of the present invention, the board-side connector further has a terminal electrically connected to the circuit board, the lower rubber ring surrounds the terminal, and the cable-side connector further has an elastic ring, and when the board-side connector and the cable-side connector are in the mated state, the elastic ring is in close contact with the extension tube.

Those with ordinary skill in the art to which this invention pertains will be able to understand other objects, means for implementing this invention, and embodiments of this invention by referring to the drawings and the implementation method described below.

Schematic diagram showing the connector assembly and housing according to the present invention Exploded view showing the connector assembly and circuit board according to the present invention FIG. 2 is an exploded view of the connector assembly and the circuit board according to the present invention, as viewed from another direction. Schematic diagram showing the board-side connector according to the present invention Schematic diagram of the board-side connector according to the present invention viewed from another direction Schematic diagram showing the cable side connector, operating member, and engaging member according to the present invention A schematic diagram of the cable side connector, operating member, and engaging member according to the present invention viewed from another direction A partial sectional view showing a connector assembly according to the present invention A schematic diagram showing a connector assembly in an initial state according to the present invention A side view showing the connector assembly in an initial state according to the present invention A side view showing how the connector assembly according to the present invention switches from the initial state to the fitted state A side view showing the connector assembly in a mated state according to the present invention A sectional view showing a connector assembly in an initial state according to the present invention 1 is a cross-sectional view showing a state in which the connector assembly according to the present invention is switched from an initial state to a mated state; A sectional view showing a connector assembly in a mated state according to the present invention FIG. 2 is a schematic diagram showing the state in which the engaging member according to the present invention is located at the second engaging position; A schematic diagram showing how the engagement member according to the present invention is located at the first engagement position A sectional view showing the engagement member according to the present invention located at the second engagement position A sectional view showing the engagement member according to the present invention located at the first engagement position

Hereinafter, the content of the present invention will be explained through examples. Note that the examples of the present invention show examples of embodiments, and are not intended to be limited to the environments, applications, or specific aspects described in the examples. Accordingly, the description of the embodiments is for the purpose of illustrating the present invention, but is not intended to limit the present invention. It should be noted that in the following embodiments and drawings, elements not directly related to the present invention are omitted and not shown. The relationship between the dimensions of each component in the drawings is for ease of understanding and does not limit the actual dimensions.

This will be explained with reference to FIGS. 1 to 3. FIG. 1 is a schematic diagram showing a connector assembly 100 installed in a housing 200 in the present invention. 2 and 3 are exploded views showing a connector assembly 100 and a circuit board 300 according to the present invention. Connector assembly 100 is fixed to circuit board 300. A portion of connector assembly 100 is installed in housing 200. The connector assembly 100 includes a board-side connector 1, a cable-side connector 2, an operating member 3, and an engaging member 4. The cable side connector 2 is installed so as to cover the board side connector 1. The operating member 3 is pivotally connected to the cable side connector 2. The engaging member 4 is installed on the operating member 3. When the operating member 3 is rotated by applying an external force or when the cable-side connector 2 is also operated, the cable-side connector 2 reciprocates above the board-side connector 1.

As shown in FIGS. 4 and 5, the board-side connector 1 includes a base 11, an elongated tube body 12, and two terminals 13. The elongated tube body 12 is connected to the base 11 so as to extend from the base 11. A convex portion 121 is formed on the side surface of the elongated tube body 12 . Base 11 is installed between housing 200 and circuit board 300. The base 11 has an upper surface 111 and a lower surface 112 formed on opposite surfaces of the base 11, respectively. Upper surface 111 faces housing 200 . The board-side connector 1 contacts the housing 200 at the upper surface 111. An upper rubber ring 1111 that closely contacts the housing 200 is installed on the upper surface 111. Lower surface 112 faces circuit board 300 . The board-side connector 1 contacts the circuit board 300 at the lower surface 112. A lower rubber ring 1121 that closely contacts the circuit board 300 is installed on the lower surface 112 .

Note that the housing 200 has an opening 2001. When the housing 200 is fixed to the board-side connector 1, the elongated tube body 12 extends to the outside through the opening 2001. Upper rubber ring 1111 surrounds aperture 2001. At the same time, the terminal 13 is electrically connected to the circuit board 300. The lower rubber ring 1121 surrounds the terminal 13. Specifically, in this embodiment, the upper rubber ring 1111 and the lower rubber ring 1121 can be made of rubber. The upper rubber ring 1111 allows the housing 200 and one side of the board-side connector 1 to come into close contact with each other, thereby preventing moisture and dust from entering the inside of the housing 200. The lower rubber ring 1121 brings the circuit board 300 and the other side of the board-side connector 1 into close contact, making it possible to prevent moisture and dust from entering between the circuit board 300 and the board-side connector 1. . This provides a sealing effect in both the upper and lower positions. In this embodiment, the number of terminals is described as two, but it should be noted that the number can be adjusted according to actual needs and is not limited here.

As shown in FIGS. 6 and 7, the cable-side connector 2 has a main body 21 and a cable connection portion 22. As shown in FIGS. The main body 21 is installed to cover the elongated tube body 12. The cable connection part 22 extends from the main body 21, and a lead wire is installed inside. The main body 21 has a case 211 and two position regulating parts 212. The case 211 has two internal guide grooves 2111, two side openings 2112, a second stopper portion 2113, two first positioning recesses 2114, and two second positioning recesses 2115. Two internal guide grooves 2111 for sliding the convex portion 121 of the elongated tube body 12 are formed on the opposing inner surfaces of the case 211. Side openings 2112 having a rotation area 21121 and an operating area 21122 are formed on both sides of the case 211. The internal guide groove 2111 and the operating area 21122 communicate with each other. The first positioning recess 2114 and the second positioning recess 2115 are formed on the same side of the case 211 (the other first positioning recess 2114 and the other second positioning recess 2115 are formed on the opposite side of the case 211). ). Furthermore, the position regulating portions 212 are connected to opposing side surfaces of the case 211, respectively. When the operating member 3 is rotated by applying an external force, a portion of the operating member 3 moves within the position regulating portion 212 .

As shown in FIGS. 8 and 18, the cable-side connector 2 further includes an elastic ring 23. As shown in FIGS. The elastic ring 23 is installed on the cable side connector 2 so as to surround the cable side connector 2. When the board-side connector 1 and the cable-side connector 2 are fitted, the elastic ring 23 comes into close contact with the elongated tube body 12 of the board-side connector 1. At this time, the elastic ring 23 fills the internal space between the mated board-side connector 1 and cable-side connector 2, allowing the board-side connector 1 to be securely fitted to the cable-side connector 2. In this embodiment, the elastic ring 23 is a silicone component and can act as a sealing component within the connector to prevent dust, water, and other impurities from entering the connector assembly 100.

The operating member 3 will be described in detail. The operating member 3 is pivotally attached to the cable side connector 2 and can be switched between a locked position and an unlocked position. As shown in Figures 6 and 7, the operating member 3 has two rotating parts 31, two first extension arms 32, and two second extension arms 33. The rotating part 31 is installed in a rotation area 21121 of the side opening 2112. The first extension arm 32 and the second extension arm 33 are installed in an operating area 21122 of the side opening 2112. The first extension arm 32 and the second extension arm 33 define an accommodation space C.

Moreover, the operating member 3 further includes two side parts 34, one lateral part 35, and two positioning protrusions 36. The rotating portion 31 , the first extending arm 32 , and the second extending arm 33 are formed on the side portion 34 . The lateral portion 35 is connected between the two side portions 34 and has a bar body 351 and an engaging portion 352. The engaging portion 352 is formed on one side of the bar body 351. The engagement member 4 is installed in the engagement portion 352. The engaging member 4 and the operating member 3 attached to the cable-side connector 2 are in an engaged state or a separated state. The positioning protrusion 36 is formed on the inner surface of the side part 34. The side portion 34 has a protruding portion 341 installed on the position regulating portion 212 . When the operating member 3 is located in the unlocked position, the positioning protrusion 36 engages with the first positioning recess 2114. When the operating member 3 is located in the lock position, the positioning protrusion 36 engages with the second positioning recess 2115. When the operating member 3 is switched between the locked position and the unlocked position, the protruding part 341 moves within the position regulating part 212. The position regulating part 212 regulates the movement of the protruding part 341, and by coming into contact with the protruding part 341, can prevent the operating member 3 from coming off from the cable-side connector 2 during operation. The engagement between the positioning protrusion 36 and the first positioning recess 2114 or the second positioning recess 2115 allows the user to intuitively feel the click feeling of positioning.

Specifically, the bar body 351 has two first through holes 3511, two second through holes 3512, one third through hole 3513, and two first stopper parts 3514. The first through hole 3511, the second through hole 3512, and the third through hole 3513 can be used to insert and install a part of the engagement member 4. The first stopper portion 3514 can engage with the engagement member 4. Note that the engaging portion 352 has two first recesses 3521 and two second recesses 3522. The first recessed portions 3521 are installed on both sides of the engaging portion 352 to face each other. The second recessed portions 3522 are installed on both sides of the engaging portion 352 to face each other. The recess openings of the first recess 3521 and the second recess 3522 on opposite sides each face the side portion 34 . The engagement member 4 can engage with the first recess 3521 and the second recess 3522.

The engaging member 4 will be explained in detail. The engaging member 4 is installed on the operating member 3. When the board-side connector 1 and the cable-side connector 2 are fitted and the operating member 3 is located at the lock position, the engaging member 4 receives force and moves to the first engaging position (see FIGS. 1 and 19). and a second engagement position (see FIGS. 9 and 18). As shown in FIGS. 6 and 7, the engaging member 4 includes a main plate 41, two hook parts 42, two first stoppers 43, and one second stopper 44. The hook portion 42, the first stopper 43, and the second stopper 44 are formed on one side of the main plate 41. The one side faces the bar body 351 of the operating member 3. The hook portion 42 and the first stopper 43 have a main body extending toward the operating member 3, and have a protruding structure at the tip thereof. Thereby, the hook portion 42 can be engaged with the first recess 3521 and the second recess 3522, and the first stopper 43 can be engaged with the operating member 3. Specifically, the hook portion 42 is installed so as to pass through the first through hole 3511. The first stopper 43 is installed to pass through the second through hole 3512. The second stopper 44 is installed so as to pass through the third through hole 3513. The engaging member 4 is installed on the operating member 3 according to the structure described above.

The operational relationship of the connector assembly 100 will be described in detail below. As shown in Figures 9 to 15, when the board-side connector 1 and the cable-side connector 2 are in the initial state and the operating member 3 is in the unlocked position, the positioning protrusion 36 engages with the first positioning recess 2114, the second extension arm 33 leaves the internal guide groove 2111, and allows the convex portion 121 to enter the storage space C along the internal guide groove 2111 (see Figures 10 and 13). When the board-side connector 1 and the cable-side connector 2 switch from the initial state to the mated state, the convex portion 121 contacts the first extension arm 32 and pushes the first extension arm 32 so that the operating member 3 rotates (see Figures 11 and 14). The user can apply force to the lateral portion 35 to assist in tight mating of the board-side connector 1 and the cable-side connector 2 and rotation of the operating member. When the protrusion 121 enters the storage space C along the internal guide groove 2111, it moves in the operating area 21122 together with the first extension arm 32 and the second extension arm 33. At that time, the protrusion 121 moves from the lowest position to the highest position of the operating area 21122, and the positioning protrusion 36 switches from the first positioning recess 2114 to engage with the second positioning recess 2115. As a result, the operating member 3 rotates from the unlocked position to the locked position around the rotating portion 31 (see Figures 12 and 15). On the other hand, if the second extension arm 33 interferes with and abuts on the protrusion 121 when the board side connector 1 and the cable side connector 2 are about to switch from the initial state to the mated state, the cable side connector 2 and the operating member 3 cannot operate. In other words, the second extension arm 33 has a foolproof effect in addition to a limiting and stopping function.

The operational relationship between the operating member 3 and the engaging member 4 will be described in detail below. As shown in FIGS. 6 and 16 to 19, when the board-side connector 1 and the cable-side connector 2 are in the fitted state and the operating member 3 is located at the lock position, the hook portion 42 of the engaging member 3 is , located in the first engagement position. At this time, the engaging member 3 approaches the case 211, the hook portion 42 is engaged with the first recess 3521, and the first stopper 43 and the first stopper portion 3514 do not interfere with each other. The second stopper 44 is close to the second stopper portion 2113. The second stopper portion 2113 contacts the second stopper 44 and limits the second stopper 44 . At this time, since the engaging member 4 attached to the connector assembly 100 and the operating member 3 are in an engaged state, the operating member 3 cannot be moved. When the engagement member 3 receives an external force and the hook portion 42 switches from the first engagement position to the second engagement position, the engagement member 3 separates from the case 211 and the hook portion 42 is engaged with the second recess 3522. , the first stopper 43 and the first stopper part 3514 interfere with each other, and the second stopper 44 separates from the second stopper part 2113. At this time, since the engaging member 4 attached to the connector assembly 100 and the operating member 3 are in a separated state, the operating member 3 can be switched between the locked position and the unlocked position. By engaging the hook portion 42 with the first recess 3521 or the second recess 3522, the user can intuitively feel a click of engagement. Note that when the engaging member 4 and the operating member 3 are in the engaged state, since the engaging member 4 is accommodated in the bar body 351 of the operating member, the user may not carelessly engage the engaging member 4. It can be prevented from being removed.

In addition, to release the mated state between the board-side connector 1 and the cable-side connector 2, first, a force is applied to move the hook portion 42 of the engagement member 4 to the second engagement position, and then a force is applied to gradually rotate the operation member 3 from the lock position to the unlock position. At that time, the convex portion 121 moves together with the first extension arm 32 and the second extension arm 33 into the accommodation space C and rotates together with the operation member 3. The second extension arm 33 retreats and gradually moves away from the internal guide groove 2111 (i.e., the second extension arm 33 and the internal guide groove 2111 do not overlap in the vertical direction of the figure), so that the convex portion 121 moves away from the accommodation space C and enters the internal guide groove 2111. As a result, the board-side connector 1 and the cable-side connector 2 can be separated. As described above, the connector assembly according to the present invention includes a board-side connector, a cable-side connector, an operation member, and an engagement member. The specially designed shape of the side opening on the operating member, the interlocking of the first extension arm, the second extension arm, and the convex portion of the board-side connector, and the combination of the operating member and the engagement member make it possible to more reliably engage the high-current connector assembly and prevent the operating member from easily coming off the cable-side connector. By installing rubber seal members on the top and bottom surfaces of the board-side connector, it is possible to eliminate the need to apply waterproof adhesives or sealants during product assembly, and it is possible to achieve a double-sided waterproof effect. This has the effect of reducing manufacturing costs and increasing the stability of the connector.

The above-mentioned embodiments explain the embodiments of the present invention and the characteristic configurations of the present invention, but the present invention is not limited to the above-mentioned embodiments. Modifications or equivalent arrangements that can be easily made by those skilled in the art are also within the scope of the invention. The scope of protection of the rights in this invention shall be based on the scope of the claims.

100 Connector assembly 200 Housing 2001 Opening 300 Circuit board 1 Board side connector 11 Base 111 Upper surface 1111 Upper rubber ring 112 Lower surface 1121 Lower rubber ring 12 Extended tubular body 121 Convex portion 13 Terminal 2 Cable side connector 21 Main body 211 Case 2111 Internal guide Groove 2112 Side opening 21121 Rotating area 21122 Operating area 2113 Second stopper part 2114 First positioning recess 2115 Second positioning recess 212 Position regulating part 22 Cable connection part 23 Elastic ring 3 Operating member 31 Rotating part 32 First extension arm 32 Second extension arm 34 Side part 341 Projection part 35 Lateral part 351 Bar body 3511 First through hole 3512 Second through hole 3513 Third through hole 3514 First stopper part 352 Engagement part 3521 First recess 3522 Second recess 36 Positioning Projection 4 Engagement member 41 Main plate 42 Hook portion 43 First stopper 44 Second stopper C Accommodation space

Claims (10)

A connector assembly,
a base; and a board-side connector that is connected to the base and has a convex portion formed on its side surface.
The main body has a main body and a cable connection part, the main body is installed to cover the elongated pipe body, the main body has a case and at least one position regulating part, and the case has an internal guide groove and a side opening. , the internal guide groove is formed inside the case, the side opening has a rotation area and a movement area, the position regulating part is connected to the case, and the cable connection part extends from the main body. , cable side connector,
It is pivotally connected to the cable side connector and can be switched between a locked position and an unlocked position, and has a rotating part, a first extending arm, and a second extending arm, and the rotating part is in the rotating area. an operating member installed in the operating area, the first extension arm and the second extension arm being installed in the operating area and defining an accommodation space;
installed on the operating member, the main plate has a main plate, at least one hook part, at least one first stopper, and a second stopper, and the hook part, the first stopper, and the second stopper are provided on one side of the main plate. an engagement member formed,
When the board-side connector and the cable-side connector are in the initial state and the operating member is located at the unlocked position, the second extension arm separates from the internal guide groove, and the convex portion moves away from the internal guide groove. When the substrate-side connector and the cable-side connector are switched from the initial state to the fitted state, the operating member moves from the unlocked position around the rotating part. The convex portion contacts the first extension arm so as to rotate to the lock position, the board-side connector and the cable-side connector are in the fitted state, and the operating member is located at the lock position. , the engagement member is switchable between a first engagement position and a second engagement position under a force. The connector assembly according to claim 1, characterized in that the internal guide groove and the operating area are mutually connected, and when the board-side connector and the cable-side connector switch from the initial state to the mated state and the operating member rotates from the unlocked position to the locked position around the rotating part, the protrusion passes through the internal guide groove and enters the accommodation space, and then moves within the operating area together with the first extension arm and the second extension arm. The operating member has at least one side portion and a lateral portion connected to the side portion, and the rotating portion, the first extending arm, and the second extending arm are formed on the side portion. , wherein the lateral part further includes a bar body and an engaging part formed on one side of the bar body, and the engaging member is installed in the engaging part. 2. The connector assembly according to item 2. The bar body has at least one first through hole, at least one second through hole, and a third through hole, and the engaging portion has at least one first recess and at least one second recess. the hook part is installed to pass through the first through hole, the first stopper is installed to pass through the second through hole, and the second stopper is installed to pass through the third through hole. When the engagement member is installed to pass through the hole and is located at the first engagement position, the engagement member is close to the case, the hook portion is engaged with the first recess, and the engagement member is located in the first engagement position. 4. When the engaging member is located at the second engaging position, the engaging member is separated from the case, and the hook portion is engaged with the second recess. connector assembly. The bar body further includes at least one first stopper part, and the case further includes a second stopper part, and when the engagement member is located in the first engagement position, the first stopper part and the first stopper part do not interfere with each other, the second stopper is close to the second stopper part, the second stopper part limits the second stopper, and the engagement member is in contact with the second engagement member. When located at the position, the engaging member is separated from the case, the first stopper and the first stopper portion interfere with each other, and the second stopper is separated from the second stopper portion. 5. The connector assembly according to claim 4. The side portion has a protrusion installed in the position restriction portion, and when the operating member is switched between the lock position and the unlocked position, the protrusion restricts the position restriction portion. 6. The connector assembly according to claim 5, wherein the connector assembly moves within the position regulating part while being moved. A first positioning recess and a second positioning recess are formed in the case, and the operating member has a positioning protrusion, and when the operating member is located at the unlocked position, the positioning protrusion 7. The connector assembly of claim 6, wherein the positioning protrusion engages the second positioning recess when the operating member is in the lock position. The connector assembly of claim 1, wherein the base has an upper surface and a lower surface, an upper rubber ring is installed on the upper surface, and a lower rubber ring is installed on the lower surface. The base is installed between a housing and a circuit board, the upper surface faces the housing, the upper rubber ring is in close contact with the housing, and the lower surface faces the circuit board. The lower rubber ring is in close contact with the circuit board, the housing has an opening, the elongated tube body extends outward from the opening, and the upper rubber ring is in close contact with the circuit board. 9. The connector assembly of claim 8, wherein the connector assembly surrounds the aperture. The board side connector further has a terminal electrically connected to the circuit board, the lower rubber ring surrounds the terminal, and the cable side connector further has an elastic ring, and the lower rubber ring surrounds the terminal. 10. The connector assembly according to claim 9, wherein when the side connector and the cable side connector are in the fitted state, the elastic ring is in close contact with the elongated tube body.