CN220510353U - Wire end module and connector assembly - Google Patents

Abstract

The present utility model relates to the field of connectors, and more particularly, to a wire end module and a connector assembly. The wire end module comprises a wire end shell, a connecting wire assembly and a waterproof plug, and a plurality of accommodating cavities which are independently arranged are arranged on the wire end shell; a plurality of connecting wire subassemblies set up with holding the chamber one-to-one, every connecting wire subassembly include female terminal and with female terminal fixed connection's electric wire, all wrap up on the electric wire of every connecting wire subassembly and have waterproof plug, waterproof plug and hold chamber interference fit to realize sealing connection between electric wire and the line end casing, improve the waterproof performance of line end module. Because waterproof stopper and connecting wire subassembly one-to-one set up, every waterproof stopper only need set up one supply connecting wire subassembly's electric wire pass the through-hole can, can reduce waterproof stopper deflection, and when certain waterproof stopper ageing needs to replace, can replace ageing waterproof stopper alone, need not to replace other waterproof stoppers to can reduce the replacement degree of difficulty and consumable cost.

Description

Wire end module and connector assembly

Technical Field

The present utility model relates to the field of connectors, and more particularly, to a wire end module and a connector assembly.

Background

The connector is used for connecting two independent electronic devices so as to ensure that current and signals can smoothly, continuously and reliably flow and transfer, and the electronic devices can realize preset functions. The connector generally refers to a connector assembly, and the connector assembly comprises a wire end module and a board end module, wherein the wire end module generally comprises a wire end shell and a female terminal arranged in the wire end shell, and the female terminal is connected with a wire; the board end module generally comprises a board end shell and a male terminal arranged in the board end shell, and the electric connection and the communication connection at two ends of the connector assembly are realized through the plug-in cooperation of the male terminal and the female terminal.

For the connector assembly used outdoors or in water environment or in humid environment, the wire end module and the plate end module need to be subjected to waterproof treatment so as to avoid rusting or short-circuit faults of metal parts in the connector caused by water infiltration into the connector.

In the related art, the wire portions of the plurality of female terminals of the wire end module share one integral waterproof plug. Because the waterproof plug is mostly made of rubber, the waterproof plug is easy to deform; and set up a plurality of female terminal and pass the hole on a waterproof plug, can further increase the deflection of waterproof plug to influence the waterproof effect of waterproof plug. In addition, when waterproof plug ageing needs the replacement, need replace whole waterproof plug, not only the replacement degree of difficulty is big, and is inefficiency, and the consumptive material cost is higher.

Therefore, a wire end module is needed to solve the above problems.

Disclosure of Invention

The first object of the present utility model is to provide a wire end module, which is used for solving the problems of high difficulty in replacing a waterproof plug of the wire end module and high consumable cost.

The second object of the present utility model is to provide a connector assembly, which has good waterproof performance, low replacement difficulty and low consumable cost by applying the above-mentioned terminal module.

In order to achieve the above object, the following technical scheme is provided:

in a first aspect, there is provided a line end module comprising:

a wire end shell provided with a plurality of independently arranged accommodating cavities;

the connecting wire assemblies are arranged in one-to-one correspondence with the accommodating cavities, the connecting wire assemblies can be positioned and installed in the accommodating cavities, each connecting wire assembly comprises a female terminal and an electric wire fixedly connected with the female terminal, and the female terminal is used for being in plug-in fit with a male terminal of the board end module;

the waterproof plugs are wrapped on the electric wires of the connecting wire assemblies, and the waterproof plugs are in interference fit with the accommodating cavities.

As an alternative to the wire end module, the female terminal includes:

a fixing part fixedly connected with the electric wire;

the inserting part is provided with a slot for being matched with the male terminal in an inserting way;

and one end of the first elastic sheet structure is connected to the inner wall of the slot, and the free end of the first elastic sheet structure can be abutted with the male terminal.

As an alternative scheme of the line terminal module, the first spring plate structure comprises a first arm and a second arm which are connected in a U-shape, the first arm can be abutted with the male terminal, and the second arm can be abutted with the inner wall of the slot.

As an alternative of the wire end module, the second arm is provided with a protrusion protruding toward the first arm.

As an alternative scheme of the wire end module, the first elastic sheet structure is provided with a protrusion capable of being abutted with the male terminal.

As an alternative scheme of the wire end module, a convex surface is arranged on the inner wall, opposite to the first elastic sheet structure, of the slot, at least part of the surface of the convex surface is a plane, and the plane can be abutted with the male terminal.

As an alternative scheme of the wire end module, the female terminal further comprises a second elastic sheet structure, one end of the second elastic sheet structure is connected to the inner wall of the slot, and the free end of the second elastic sheet structure is located between the free end of the first elastic sheet structure and the inner wall of the slot.

As an alternative solution of the line end module, the free end of the first elastic piece structure faces opposite to the free end of the second elastic piece structure.

As an alternative scheme of the wire end module, the first elastic piece structure is formed by inwards bending the outer wall of the plug-in part.

As an alternative scheme of the wire end module, the second elastic piece structure is formed by inwards bending the outer wall of the plug-in part.

As an alternative scheme of the wire end module, a step surface is arranged on the outer wall of the plug-in part, a spring tongue is arranged in the accommodating cavity of the wire end shell, and a limiting surface capable of being abutted with the step surface is arranged on the spring tongue; when the female terminal is assembled with the terminal housing, the limiting surface can be abutted with the step surface so as to limit the movement of the plug-in part in the pulling-out direction.

As an alternative scheme of the wire end module, the wire end shell comprises a base and a lock shell, the base comprises a main body part and a matching part, a first accommodating cavity for accommodating the wire and the waterproof plug is formed in the main body part, a U-shaped groove communicated with the first accommodating cavity is formed in the matching part, and the spring tongue is arranged opposite to an opening of the U-shaped groove; the lock shell is detachably sleeved on the matching part and matched with the U-shaped groove to form a second accommodating cavity for accommodating the plug-in part.

In a second aspect, there is provided a connector assembly comprising a board end module and a wire end module as claimed in any one of the preceding claims, the board end module comprising a board end housing and a male terminal mounted on the board end housing, the male terminal being insertable into a female terminal of the wire end module.

As an alternative of the connector assembly, a mounting plate is arranged in the plate end housing, the mounting plate divides the inner space of the plate end housing into a cavity and a containing groove, the cavity is used for containing the wire end housing, the mounting plate is used for mounting the male terminal, and the containing groove is filled with sealant.

As an alternative to the connector assembly, the connector assembly further comprises a sealing ring, and a groove for accommodating the sealing ring is provided on the outer wall of the wire end housing and/or on the inner side wall of the cavity.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a wire end module which comprises a wire end shell, a connecting wire assembly and a waterproof plug, wherein a plurality of accommodating cavities which are independently arranged are arranged on the wire end shell; a plurality of connecting wire subassemblies set up with holding the chamber one-to-one, and every connecting wire subassembly includes female terminal and with female terminal fixed connection's electric wire, female terminal be used for with the male terminal grafting cooperation of board end module. Waterproof plugs are wrapped on the electric wires of each connecting wire assembly and are in interference fit with the accommodating cavities, so that sealing connection between the electric wires and the wire end shell is achieved, and the waterproof performance of the wire end module is improved. Because waterproof stopper and connecting wire subassembly one-to-one set up, every waterproof stopper only need set up one supply connecting wire subassembly's electric wire pass the through-hole can, can reduce waterproof stopper deflection, and when certain waterproof stopper ageing needs to replace, can replace ageing waterproof stopper alone, need not to replace other waterproof stoppers to can reduce the replacement degree of difficulty and consumable cost.

The connector assembly provided by the utility model has the advantages of good waterproof performance, small replacement difficulty and low consumable cost by applying the wire end module.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of an assembly of a connector assembly according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a connector assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of one direction of a connector assembly according to an embodiment of the present utility model;

fig. 4 is a schematic view partially in section showing an assembled state of a female terminal and a terminal housing according to an embodiment of the present utility model;

fig. 5 is a schematic structural view of a plugging portion of a female terminal according to an embodiment of the present utility model;

fig. 6 is an exploded view of a wire end housing according to an embodiment of the present utility model;

fig. 7 is a schematic cross-sectional view of another direction of the connector assembly according to an embodiment of the present utility model.

Reference numerals:

100. a wire end module; 200. a board end module; 201. a plate end housing; 2011. a mounting plate; 202. a male terminal; 300. a seal ring;

1. a wire end housing; 11. a base; 111. a main body portion; 1111. a first accommodation chamber; 112. a mating portion; 1121. a positioning surface; 1122. a U-shaped groove; 1123. a first groove; 1124. a second groove; 113. spring tongue; 1131. a limiting surface; 12. a lock case; 121. a clamping protrusion;

2. a female terminal; 21. a fixing part; 22. a plug-in part; 221. a convex surface; 222. a step surface; 223. fitting to the bit face; 23. a first spring structure; 231. a first arm; 2311. a protrusion; 232. a second arm; 2321. a convex portion; 24. a second spring structure;

3. an electric wire;

4. and a waterproof plug.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present utility model, the terms "upper," "lower," "left," "right," and the like are used for convenience of description and simplicity of operation based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Fig. 1 shows an assembly schematic of a connector assembly provided in this embodiment. Fig. 2 shows an exploded view of the connector assembly provided by the present embodiment. As shown in fig. 1 to 2, the connector assembly includes a wire end module 100 and a board end module 200, the wire end module 100 and the board end module 200 are respectively connected with different electronic devices or electronic elements, and electric signal transmission between the different electronic devices or electronic elements is realized through detachable plug-in connection of the wire end module 100 and the board end module 200. In this embodiment, one board end module 200 is in plug-in fit with three sets of wire end modules 100, and two wire end modules 100 with different sizes are arranged in the three sets of wire end modules 100. Of course, in other embodiments, one board end module 200 may be in plug-fit with one line end module 100, or one board end module 200 may be in plug-fit with two or more line end modules 100, which is not limited herein.

The line end module 100 comprises a line end shell 1 and connecting line components, wherein a plurality of accommodating cavities which are independently arranged are formed in the line end shell 1, the number of the connecting line components is the same as that of the accommodating cavities, and the connecting line components can be fixed in the accommodating cavities of the line end shell 1 in a sealing manner. The connecting wire assembly comprises a female terminal 2 and an electric wire 3, wherein the female terminal 2 is arranged in the accommodating cavity of the wire end shell 1 in a limiting mode, one end of the electric wire 3 is fixedly connected with the female terminal 2, and the other end of the electric wire is used for being electrically connected with electronic equipment or an electronic element. In this embodiment, 8 or 16 accommodation cavities are provided on the wire end housing 1, and the number of the connection wire assemblies is also 8 or 16. Of course, in other embodiments, the number of receiving cavities and connecting wire assemblies in each wire-end module 100 may be designed according to the needs, and is not limited herein.

The board end module 200 includes a board end housing 201 and a male terminal 202, the board end housing 201 is provided with a cavity for accommodating the line end module 100, the male terminal 202 is fixed on the board end housing 201 in a sealing manner, and the male terminal 202 is partially located in the cavity and is in plug-in fit with the female terminal 2 of the connecting line assembly, and the male terminal 202 is partially located outside the cavity and is used for being electrically connected with an electronic device or an electronic element. In this embodiment, the male terminal 202 and the board end housing 201 are sealed by glue filling. Specifically, a mounting plate is disposed in a cavity of the plate end housing 201, a plurality of through holes are disposed on the mounting plate, and after the male terminal 202 is inserted into the through holes, glue filling operation is performed, so that sealing and fixing of the male terminal 202 are realized.

The connector assembly further comprises a sealing ring 300, when the wire end module 100 is in plug-in fit with the plate end module 200, the wire end shell 1 can be accommodated in the cavity of the plate end shell 201, and the sealing ring 300 is positioned between the outside of the wire end shell 1 and the inner wall of the cavity so as to realize sealing connection of the matched parts of the wire end shell 1 and the plate end shell 201 and improve the waterproof performance of the connector assembly. In this embodiment, the sealing ring 300 may be made of a sealing material that is more mature in the prior art, and will not be described herein.

In order to facilitate the positioning and installation of the sealing ring 300, a groove for accommodating the sealing ring 300 is formed on the outer wall of the wire end housing 1. In other embodiments, a groove for receiving the seal ring 300 may also be provided in the cavity of the plate end housing 301.

In order to ensure the plug stability of the wire end module 100 and the board end module 200, the outer wall of the wire end housing 1 is provided with a first locking piece, the board end housing 201 is provided with a second locking piece, and when the wire end housing 1 is inserted into the cavity of the board end housing 201, the first locking piece is in clamping fit with the second locking piece, so that the wire end housing 1 can be prevented from being separated from the board end housing 201 under external pulling force, and the wire end housing 1 and the board end housing 201 form a fully-closed structure after being fixed, and the assembly is simple and reliable. In this embodiment, the first locking member and the second locking member may have any structures, so long as they can be engaged and prevented from being separated, and the present utility model is not limited thereto.

In the related art, the sealing between the wire end housing 1 and the plurality of connection wire assemblies in the wire end module 100 is mostly selected from a whole waterproof plug 4, a through hole is provided on the waterproof plug 4 for the connection wire assemblies to pass through, and then the waterproof plug 4 and the plurality of connection wire assemblies are installed in the wire end housing 1. However, since the waterproof plug 4 is mostly made of rubber, the waterproof plug 4 itself is easily deformed; and the provision of a plurality of through holes in one waterproof plug 4 further increases the deformation amount of the waterproof plug 4, thereby affecting the waterproof effect of the waterproof plug 4. In addition, when the waterproof plug 4 is aged and needs to be replaced, the whole waterproof plug 4 needs to be replaced, so that the replacement difficulty is high, the efficiency is low, and the consumable cost is high.

Based on the above-mentioned problem, this embodiment provides a line terminal module 100, and the water-proof effects is better, can reduce the change degree of difficulty of waterproof plug 4, improves and changes efficiency, and the consumptive material is with low costs.

Fig. 3 shows a cross-sectional view of the connector assembly provided by the present embodiment in one direction. As shown in fig. 3 in combination with fig. 2, the wire end module 100 further includes a plurality of waterproof plugs 4, each of the wires 3 of each of the connecting wire assemblies is wrapped with the waterproof plug 4, and the waterproof plugs 4 are in interference fit with the accommodating cavity, so as to realize sealing connection between the wires 3 and the wire end housing 1, and improve the waterproof performance of the wire end module 100. Because waterproof stopper 4 and connecting wire subassembly one-to-one set up, every waterproof stopper 4 only need set up one supply connecting wire subassembly's electric wire 3 pass the through-hole can, can reduce waterproof stopper 4 deflection, and when certain waterproof stopper 4 ageing needs to replace, can replace ageing waterproof stopper 4 alone, need not to replace other waterproof stoppers 4 to can reduce the replacement degree of difficulty and consumable cost.

In this embodiment, the assembly process of the waterproof plug 4 and the connecting wire assembly is that the waterproof plug 4 is sleeved on the electric wire 3, and then the female terminal 2 and the electric wire 3 are fixedly connected to form a whole, and then assembled with the wire end housing 1. Further, the female terminal 2 is a metal member, and the female terminal 2 can be fixedly connected with the electric wire 3 by riveting.

In order to ensure the tightness between the waterproof plug 4 and the wire end housing 1, a wavy sealing part is arranged on the outer wall of the waterproof plug 4, and the wavy sealing part can deform under the extrusion of the inner wall of the accommodating cavity of the wire end housing 1 so as to improve the sealing connection between the waterproof plug 4 and the wire end housing 1.

Fig. 4 is a partially sectional view schematically showing the assembled state of the female terminal 2 and the terminal housing 1 provided in the present embodiment. As shown in fig. 4 in combination with fig. 3, the female terminal 2 includes a fixing portion 21 and a plugging portion 22, the fixing portion 21 being fixedly connected with the electric wire 3; the socket part 22 is provided with a slot for being in socket fit with the male terminal 202, the inner wall of the slot is provided with a first elastic sheet structure 23, and the first elastic sheet structure 23 can be abutted with the male terminal 202, so that the male terminal 202 is stably abutted with the female terminal 2, and stable transmission of electric signals is ensured.

In this embodiment, the first spring structure 23 includes a first arm 231 and a second arm 232 connected in a U shape, where the first arm 231 can abut against the male terminal 202, and the second arm 232 can abut against an inner wall of the socket. By the arrangement, the structural strength and the elastic deformation capability of the first elastic sheet structure 23 can be improved, the elastic deformation capability of the first elastic sheet structure 23 is ensured to be maintained after the male terminal 202 and the female terminal 2 are repeatedly plugged and unplugged, and the service life of the connector assembly is prolonged.

In order to ensure that the first arm 231 of the first spring structure 23 can stably contact the male terminal 202, a protrusion 2311 capable of abutting against the male terminal 202 is provided on the first arm 231. The elastic pressure of the first spring structure 23 to the male terminal 202 can be increased by the provision of the protrusion 2311. Alternatively, the second arm 232 is provided with a convex portion 2321 protruding toward the first arm 231. The convex portion 2321 can limit the deformation range of the first arm 231, for example, when the first arm 231 abuts against the convex portion 2321, the first arm 231 cannot be deformed any more due to the effect of the convex portion 2311, so that the first arm 231 is protected from being excessively pressed. In addition, the protruding portion 2321 may further enhance the structural strength of the second arm 232, so as to ensure that the second arm 232 can be stably abutted against the inner wall of the slot.

The inner wall of the slot of the plug-in portion 22 opposite to the first elastic sheet structure 23 is provided with a convex surface 221, at least a part of the surface of the convex surface 221 is a plane, and the plane can be abutted against the male terminal 202, so as to increase the contact area between the female terminal 2 and the male terminal 202, and improve the stability of signal transmission.

In the present embodiment, the second elastic piece structure 24 is disposed on the inner wall of the slot of the plugging portion 22, and the free end of the second elastic piece structure 24 is located between the free end of the first elastic piece structure 23 and the inner wall of the slot. Thus, the second spring structure 24 can be used to support the first spring structure 23, so as to avoid the first spring structure 23 from being excessively deformed and unable to recover the original position. Further, the free end of the second spring structure 24 has a bending portion protruding toward the first spring structure 23, so as to improve the structural strength of the second spring structure 24,

in the present embodiment, the first elastic piece structure 23 is formed by bending the outer wall of the plugging portion 22 inwards. The second elastic piece structure 24 is formed by bending the outer wall of the plug-in portion 22 inwards. Further, the female terminal 2 is integrally formed by punching and bending a metal sheet.

Fig. 5 shows a schematic structural view of the insertion portion 22 of the female terminal 2 provided in the present embodiment. As shown in fig. 5 and fig. 4, the outer wall of the plug-in portion 22 of the female terminal 2 is provided with a step surface 222, the accommodating cavity of the terminal housing 1 is provided with a spring tongue 113, and the spring tongue 113 is provided with a limiting surface 1131 capable of abutting against the step surface 222 to limit the movement of the plug-in portion 22 in the pulling-out direction. After the female terminal 2 and the terminal housing 1 are assembled in place, the step surface 222 on the female terminal 2 abuts against the limiting surface 1131 of the latch 113, so as to prevent the female terminal 2 from being pulled off the terminal housing 1 by the wire 3. In the present embodiment, the female terminal 2 is formed by punching and bending a metal sheet, and the step surface 222 of the insertion portion 22 is a step portion formed by folding a metal sheet.

The outer wall of the plug-in portion 22 is provided with a fitting-in-place surface 223, and the housing chamber of the terminal housing 1 is provided with a positioning surface 1121. When the fitting-to-place surface 223 of the plug portion 22 abuts against the positioning surface 1121 of the terminal housing 1, it is explained that the female terminal 2 is already fitted in place.

In the related art, the wire end housing 1 is of an integral structure, in order to avoid that the connecting wire assembly is pulled by external force and separated from the accommodating cavity of the wire end housing 1, a limiting part is usually required to be arranged in the accommodating cavity of the wire end housing 1, and meanwhile, a limiting part is also required to be arranged on the female terminal 2 of the connecting wire assembly, and the pulling and separating preventing function of the connecting wire assembly is realized through the cooperation of the two limiting parts. However, since it is required to be able to be inserted into the receiving cavity of the terminal housing 1 when the female terminal 2 is assembled, the stopper portion of the female terminal 2 cannot interfere with the stopper portion of the receiving cavity; when the female terminal 2 is prevented from being separated, the limiting part of the female terminal 2 is required to be abutted with the limiting part of the accommodating cavity; and limit part and the limit part on female terminal 2 of line end casing 1 are mostly rigid structure for line end casing 1 is comparatively complicated with female terminal 2's structure, and anticreep effect is general.

Based on the above-described problems, the present embodiment provides a wire end housing 1 capable of facilitating the assembly of a female terminal 2 and having the female terminal 2 anti-drop function.

Fig. 6 shows an exploded schematic view of the wire end housing 1 provided in the present embodiment. Fig. 7 shows a cross-sectional view of the connector assembly provided by the present embodiment in another direction. As further shown in fig. 6 to 7 in combination with fig. 3, the wire end housing 1 includes a base 11 and a lock case 12 detachably sleeved on the base 11. The base 11 includes a main body 111, a mating portion 112, and a latch 113, the main body 111 is provided with a first accommodating chamber 1111 for accommodating the electric wire 3 and the waterproof plug 4, the mating portion 112 is provided with a U-shaped groove 1122 in communication with the first accommodating chamber 1111, the latch 113 is fixed to the main body 111 and is disposed opposite to an opening of the U-shaped groove 1122, and the latch 113 is capable of limiting the female terminal 2. The lock case 12 has a hollow cavity penetrating through the height direction, the lock case 12 is sleeved outside the matching portion 112 and the latch 113 and is matched with the U-shaped groove 1122 to form a second accommodating cavity for accommodating the female terminal 2, that is, the lock case 12 can prevent the latch 113 from being deformed outwards. It will be appreciated that the first receiving chamber 1111 and the second receiving chamber together form a receiving chamber for receiving the connection wire assembly.

The base 11 is provided with a first groove 1123 and a second groove 1124, the first groove 1123 and the second groove 1124 are arranged at intervals along the assembly direction of the lock shell 12 and the base 11, and the lock shell 12 is provided with a clamping protrusion 121 matched with the first groove 1123 and the second groove 1124. The locking protrusion 121 of the lock case 12 is locked with the first groove 1123 or the second groove 1124 of the base 11, so as to ensure that the base 11 is stably connected with the lock case 12.

The assembling process includes sleeving the lock case 12 on the matching part 112 and the latch 113 of the base 11 and clamping the clamping protrusion 121 in the second groove 1124 of the base 11, and inserting the connecting wire assembly into the first accommodating cavity 1111 of the base 11 until the connecting wire assembly is inserted in place, wherein the latch 113 can deform outwards during the insertion of the connecting wire assembly due to the unlimited effect of the lock case 12 on the latch 113, so that the female terminal 2 of the connecting wire assembly can be smoothly inserted into the U-shaped groove 1122; finally, the lock shell 12 is pushed upwards until the clamping convex 121 of the lock shell 12 is matched with the first groove 1123 in a clamping way, the lock shell 12 limits the spring tongue 113, and the spring tongue 113 is prevented from deforming outwards, so that the female terminal 2 is prevented from being separated. Of course, the assembly process may also be to insert the connecting wire assembly into the first receiving cavity 1111 of the base 11 until the connecting wire assembly is inserted in place, and then assemble the lock housing 12 until the locking protrusion 121 of the lock housing 12 is engaged with the first recess 1123 of the base 11. Both assembly methods can facilitate the smooth insertion of the female terminal 2 into the U-shaped groove 1122, and then achieve the positioning fit of the female terminal 2 with the second receiving cavity by assembling the lock housing 12 and the base 11.

Note that in the description of this specification, a description referring to the terms "one embodiment," "in other embodiments," and the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing description is only of the preferred embodiments of the utility model and the technical principles employed. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (14)

1. A wire end module, characterized in that the wire end module comprises:

a wire end shell (1) provided with a plurality of independently arranged accommodating cavities;

the connecting wire assemblies are arranged in one-to-one correspondence with the accommodating cavities, the connecting wire assemblies can be positioned and installed in the accommodating cavities, each connecting wire assembly comprises a female terminal (2) and an electric wire (3) fixedly connected with the female terminal (2), and the female terminal (2) is used for being in plug-in fit with a male terminal (202) of the board end module (200);

the waterproof plugs (4) are wrapped on the electric wires (3) of the connecting wire assembly, and the waterproof plugs (4) are in interference fit with the accommodating cavities.

2. The line-end module according to claim 1, characterized in that the female terminal (2) comprises:

a fixing part (21) fixedly connected with the electric wire (3);

a plug-in part (22) provided with a slot for plug-in matching with the male terminal (202);

the first elastic piece structure (23) is connected to the inner wall of the slot, and the free end of the first elastic piece structure (23) can be abutted with the male terminal (202).

3. The wire end module according to claim 2, characterized in that the first spring structure (23) comprises a first arm (231) and a second arm (232) connected in a U-shape, the first arm (231) being capable of abutting against the male terminal (202), the second arm (232) being capable of abutting against an inner wall of the slot.

4. A wire end module according to claim 3, characterized in that the second arm (232) is provided with a protrusion (2321) protruding towards the first arm (231).

5. The wire end module according to claim 2, characterized in that the first spring structure (23) is provided with a protrusion (2311) capable of abutting against the male terminal (202).

6. The line-end module according to claim 2, characterized in that a convex surface (221) is provided on an inner wall of the slot opposite to the first spring structure (23), at least part of the surface of the convex surface (221) is a plane, and the plane can be abutted against the male terminal (202).

7. The wire end module according to claim 2, characterized in that the female terminal (2) further comprises a second spring structure (24), the second spring structure (24) being connected to the inner wall of the slot, the free end of the second spring structure (24) being located between the free end of the first spring structure (23) and the inner wall of the slot.

8. The line-end module according to claim 7, characterized in that the free end of the first spring structure (23) is oriented opposite to the free end of the second spring structure (24).

9. The wire end module according to claim 8, characterized in that the first spring structure (23) is formed by bending the outer wall of the plug-in part (22) inwards; and/or

The second elastic sheet structure (24) is formed by inwards bending the outer wall of the plug-in connection part (22).

10. The line terminal module according to any one of claims 2 to 9, characterized in that a step surface (222) is provided on the outer wall of the plug-in portion (22), a spring tongue (113) is provided in the accommodating cavity of the line terminal housing (1), and a limit surface (1131) capable of abutting against the step surface (222) is provided on the spring tongue (113); when the female terminal (2) is assembled with the terminal housing (1), the limiting surface (1131) can abut against the step surface (222) to limit the movement of the plug-in portion (22) in the pulling-out direction.

11. The wire end module according to claim 10, wherein the wire end housing (1) comprises a base (11) and a lock case (12), the base (11) comprises a main body part (111) and a matching part (112), a first accommodating cavity (1111) for accommodating the electric wire (3) and the waterproof plug (4) is arranged on the main body part (111), a U-shaped groove (1122) communicated with the first accommodating cavity (1111) is arranged on the matching part (112), and the spring tongue (113) is arranged opposite to an opening of the U-shaped groove (1122); the lock shell (12) is detachably sleeved on the matching part (112) and matched with the U-shaped groove (1122) to form a second accommodating cavity for accommodating the plug-in part (22).

12. A connector assembly comprising a board end module (200) and a wire end module according to any of claims 1-11, the board end module (200) comprising a board end housing (201) and a male terminal (202) mounted on the board end housing (201), the male terminal (202) being insertable into a female terminal (2) of the wire end module.

13. The connector assembly according to claim 12, wherein a mounting plate (2011) is provided in the board-end housing (201), the mounting plate (2011) divides an inner space of the board-end housing (201) into a cavity for accommodating the terminal housing (1) and a receiving groove, and the mounting plate (2011) is used for mounting the male terminal (202), and the receiving groove is filled with sealant.

14. The connector assembly according to claim 13, further comprising a sealing ring (300), wherein grooves for receiving the sealing ring (300) are provided on an outer wall of the line-end housing (1) and/or on an inner wall of the cavity.