TWM451695U - Electrical connector having drainage function - Google Patents

Description

Electrical connector with drainage function

The present invention relates to an electrical connector, and more particularly to an electrical connector having a drainage function.

According to electrical connectors, there are many advantages in electrical products. The main purpose of electrical connectors is the transmission of power sources or signals. Therefore, electrical connectors have been widely used for the connection of information products and are indispensable components.

In fact, the use of electrical connectors is not only in the aforementioned electrical products, but also widely used in the circuit systems of steam and locomotives as a connection of lines. Since steam and locomotives must travel in various weathers, foreign objects such as liquids and dust are inevitably in the vehicle body. Therefore, if the electrical connector is provided without a seal, the foreign matter may enter the inside of the electrical connector, making it unable to operate normally.

For example, in the case of an electrical connector for use in steam or locomotives, in order to form a sealing effect, the electrical connector is provided with a sealing member between the housing and the end cap of the sleeve, and the peripheral edge of the sealing member protrudes at least one circumferential flange. The circumferential flange is configured to sealingly engage the circumferential inner wall of the housing such that foreign matter such as liquid and dust does not pass through the seal and enters the electrical connector. Wherein, the sealing member defines a plurality of through holes in the axial direction, and each of the insertion holes has an annular inner lip to form a separate seal for the wires passing through the insertion holes. The circumferential flange of the sealing member and the circumferential inner wall of the casing form a circumferential seal, that is, the circumferential flange is pushed by the inner wall of the casing to deform the socket, and the circumferential seal and the individual seal are sealed. Mutual influence, but not good to form the best sealing effect.

As mentioned above, since steam and locomotives are driving in rainy or snowy weather, rain or snow water is hard to avoid entering the vehicle body, and even during the car washing process, liquid is easily accumulated in the socket of the end cap and the sealing member. Correspondingly, in the perforation of the setting, when the car is washed or driven, the wire is pressed against the inner lip in the socket of the sealing member, and the liquid is passed along the wire through the perforation and the jack, which is easy to cause The rust of the male and female terminals, even in the case of serious short circuit of the circuit system, is urgently expected to be improved by related operators.

The main purpose of the present invention is to provide an electrical connector with a drainage function, which is provided with at least one drainage channel between the end cover and the sealing member and the housing, the drainage channel enables the liquid to be quickly discharged outside the electrical connector to avoid The liquid passes through the through hole of the end cap and the socket of the sealing member, thereby overcoming the problem that the male and female terminals are easily corroded or the circuit system is short-circuited.

In order to achieve the foregoing objectives, the technical means adopted in this case is to provide an electrical connector with a drainage function, which comprises:

a housing having a skirt portion and a joint portion respectively, the top opening of the skirt portion forming an accommodating space, the joint portion axially opening one or more communicating with the accommodating space for receiving and positioning the terminal a terminal slot, and each of the terminals has an extension of the wire, wherein the joint portion and the circumferential inner circumferential surface of the skirt portion and the circumferential inner flange portion of the bottom wall of the accommodating space are axially opened one or more a drainage trough through which the accommodation space is connected;

a sealing member sleeved in the circumferential inner flange of the accommodating space, the sealing member opening one or more jacks for the passage of the wires corresponding to the positions of the terminal slots;

An end cover is sleeved and locked in the accommodating space, so that the outer circumferential wall of the sealing member protrudes outwardly and is closely attached to the inner wall of the circumferential inner flange; wherein the top surface of the end cover corresponds to each jack One or more perforations for the passage of the wire are formed at the position of the terminal slot, and one or more through-channels are formed in the circumferential direction of the end cover to form a drainage channel with the drainage groove.

In order to further reveal the specific technical content of the present case, first, please refer to the drawings. FIG. 1 is an exploded perspective view of the electrical connector of the present invention, and FIG. 2 is an exploded perspective view of the electrical connector of the present invention, and FIG. 3 is an electrical connection of the present embodiment. The assembled perspective view of the device, FIG. 4 is a partially cutaway perspective view of the electrical connector of the present invention.

As shown in FIG. 1 to FIG. 4, basically, the electrical connector of the present invention is composed of a casing 1, a sealing member 2, and an end cover 3.

The housing 1 is made of an insulating material, such as a plastic material, and has a joint portion 11 at a lower portion thereof. The upper portion 12 is integrally connected with a large-sized skirt portion 12. The skirt portion 12 is internally provided with an accommodating space 121. In order to accommodate and lock the seal 2 and the end cap 3. The joint portion 11 is used for the mating of the complementary electrical connector. Therefore, the joint portion 11 defines a plurality of terminal slots 13 communicating with the accommodating space 121 in the axial direction, which are provided by terminals (known, not shown). After being placed and positioned, the wires of the respective terminals are passed through the sealing member 2 and the end cover 3.

In order to prevent the end cap 3 from being axially disengaged from the top opening of the skirt portion 12 of the housing 1, a locking mechanism is provided therebetween. For example, at least two pairs of buckle grooves 14 are formed on the opposite wall surfaces of the skirt portion 12, and the end cover 3 is At least a pair of beveled hooks 32 are protruded from the outer wall. When the buckle 32 is snapped into the buckle groove 14, the locking relationship as shown in FIG. 3 is formed, but this is a well-known technique and will not be described herein.

The housing 1 is characterized in that the joint portion 11 and the circumferential surface of the skirt portion 12 and the circumferential inner flange 15 protruding from the bottom inner wall of the accommodating space 121 are axially opened one or more positions and are accommodated. As shown in FIG. 1 and FIG. 2 , the rectangular radial periphery of the rectangular space is opposite to the two drainage grooves 16 , and the bottom circumferential inner flange 15 of the accommodating space 121 is provided with the sealing member 2 . In.

The sealing member 2 is made of an elastic material, and its shape corresponds to a cross-sectional shape of the bottom circumferential inner flange 15 of the accommodating space 121, for example, a rectangular shape. The sealing member 2 is sleeved in the circumferential inner flange 15. Since the height of the sealing member 2 is greater than the height of the circumferential inner flange 15, the liquid on the top surface of the sealing member 2 is directly from the drainage grooves 16 The liquid discharged from the outside of the casing 1 or the liquid on the top surface of the sealing member 2 flows indirectly to the circumferential inner flange 15, and then flows along the circumferential inner flange 15 to the drainage grooves 16 and is discharged outside the casing 1.

The sealing member 2 has a through hole 21 corresponding to the position of each of the terminal slots 13, and each of the insertion holes 21 has at least one pair of axially spaced annular inner lips 22 (shown in FIG. 4). The inner lip 22 is present to define at least one deformable stenosis. Therefore, in use, each inner lip 22 is sealingly engaged with the wire passing through the insertion hole 21, thereby being separately sealed inside the narrow portion forming the wire.

The end cover 3 is made of an insulating material, such as plastic, and a plurality of through holes 31 are defined in the top surface of the socket 21 and the terminal slot 13 for the terminal wires to pass through. In addition, a hook 32 is protruded from the outer wall of the end cover 3 corresponding to each of the buckle slots 14 of the skirt portion 12; therefore, as shown in FIG. 3, when the end cover 3 is nested in the accommodating space 121, the hooks 32 are stuck. The buckle groove 14 is fastened to form a locked state as shown in FIG. 3, and the end cap 3 is pushed against the seal member 2 to form a circumferential seal.

In addition, the end cap 3 has a respective outer wall of the hook 32 extending further upwardly by a flap 33. As shown in FIG. 1 and FIG. 2, the end cap 3 has a pair of flaps 22 extending forwardly from the front outer wall and the rear outer wall. When the pair of flaps 33 are pressed, the buckle hook 32 can be disengaged from the buckle groove 14. In turn, an unlock is formed.

The technical feature of the end cap 3 is that one or more through-holes 34 are formed in the circumferential direction of the circumference. As shown in FIG. 1 and FIG. 2, the two sides of the long side of the end cover 3 are oppositely opened with two pairs of water guiding grooves 34, so that the guide The water tank 34 forms a drainage channel with the drainage channel 16.

When the electrical connector is assembled, referring to FIG. 1 and FIG. 3, the sealing member 2 is first inserted into the circumferential inner flange 15 at the bottom of the accommodating space 121. Then, the end cover 3 is inserted into the accommodating space 121, so that the buckle 32 is buckled in the buckle groove 14, and the sealing member 2 is subjected to the urging force of the end cover 3 to form a push and a sudden change. The outer wall of the sealing member 2 is in close contact with the inner wall of the circumferential inner flange 15, thereby forming a circumferential sealing effect.

Referring to FIG. 4, as indicated by the arrow, when the liquid enters through the water guiding groove 34 and passes through the gap formed between the sealing member 2 and the bottom circumferential inner flange 15 of the accommodating space 121, the liquid is finally discharged by the drain groove 16. Outside the housing 1

Therefore, through the implementation of the present invention, the gain of the solution is that the opening of the water guide and the drainage groove of the end cover and the casing enables the liquid to be quickly discharged through the drainage channel formed by the water guide and the drainage channel. In this way, the liquid can be prevented from passing through the through hole of the end cover and the socket of the sealing member, and the problem that the male and female terminals are easily corroded or the circuit system is short-circuited can be avoided, which is a great structure of the same kind of articles.

The disclosure of the present invention is a preferred embodiment. Any change or modification of the present invention originating from the technical idea of the present invention and being easily inferred by those skilled in the art will not deviate from the scope of patent rights of the present invention.

1‧‧‧shell
11‧‧‧ joints

12‧‧‧ skirt
121‧‧‧ accommodating space

13‧‧‧Terminal slot
14‧‧‧ buckle groove

15‧‧‧week inward flange
16‧‧‧Drainage trough

2‧‧‧Seal
21‧‧‧ jack

22‧‧‧ inner lip

3‧‧‧End cover
31‧‧Perforation

32‧‧‧ hook
33‧‧‧Flap

34‧‧‧Groove

Figure 1 is an exploded perspective view of the electrical connector of the present invention.

2 is an exploded perspective view of another view of the electrical connector of the present invention.

Figure 3 is a perspective view of the electrical connector of the present invention after assembly.

Figure 4 is a partially cutaway perspective view of the electrical connector of the present invention.

1‧‧‧shell

11‧‧‧ joints

12‧‧‧ skirt

121‧‧‧ accommodating space

13‧‧‧Terminal slot

16‧‧‧Drainage trough

2‧‧‧Seal

21‧‧‧ jack

22‧‧‧ inner lip

3‧‧‧End cover

31‧‧‧Perforation

33‧‧‧Flap

34‧‧‧Groove

Claims (4)

An electrical connector with a drain function, comprising:
a housing having a skirt portion and a joint portion respectively, the top opening of the skirt portion forming an accommodating space, the joint portion axially opening one or more communicating with the accommodating space for receiving and positioning the terminal a terminal slot, and each of the terminals has an extension of the wire, wherein the joint portion and the circumferential inner circumferential surface of the skirt portion and the circumferential inner flange portion of the bottom wall of the accommodating space are axially opened one or more a drainage trough through which the accommodation space is connected;
a sealing member sleeved in the circumferential inner flange of the accommodating space, the sealing member is provided with one or more jacks for the passage of the wires corresponding to the positions of the terminal slots; and an end cover which is sleeved and locked In the accommodating space, the sealing member is outwardly protruded outwardly from the outer wall of the sealing member and abuts against the inner wall of the circumferential inner flange; wherein the top surface of the end cap is opened for each of the insertion holes and the terminal slot for the wire to be worn One or more perforations are formed, and one or more through-channels are axially defined in the periphery of the end cap, so that the water guiding trough and the drainage trough form a drainage channel.
The electrical connector having a drainage function according to claim 1, wherein each of the insertion holes has one or more annular inner lips, thereby defining at least one deformable narrow portion in the insertion hole.
The electrical connector having the drainage function of claim 1, wherein a locking mechanism is disposed between the accommodating space of the housing and the end cover, and the locking mechanism is disposed on the outer wall of the housing space of the housing. A buckle is provided, and the end cover is provided with a hook corresponding to each of the buckle slots; when the buckle is buckled in the buckle groove, a locked state is formed.
The electrical connector having a drainage function according to claim 3, wherein the end cover has a plurality of fins extending outwardly from the outer wall of the hook.