CN101764308A - Electric connector with waterproof function - Google Patents

Abstract

The invention relates to the field of electrical connectors. The invention provides an electrical connector, which includes a shell, a socket terminal and a sealant. Wherein, a socket terminal accommodating cavity is arranged in the housing. The socket terminals are placed in the corresponding socket terminal accommodating cavities. A sealant with low viscosity and insulating properties is poured into the socket terminal accommodating cavity, so that the socket terminals are immersed in the sealant. The electrical connector provided by the invention has simple structure, easy assembly and waterproof function. At the same time, when in use, the electrical wire connection of the electrical connector is simple and convenient.

Description

Electrical connector with waterproof function

【Technical field】

The invention relates to the field of electrical connectors, in particular to an electrical connector with a waterproof function.

【Background technique】

In the field of electrical connectors, a direct plug-in electrical connector usually includes a male connector and a female connector. When in use, the male and female connectors are nested and locked, so that the electrical terminals in the male and female connectors Mechanically connected. In addition, wires are respectively connected to the male and female connectors, and the wires are usually inserted into the connectors by crimping and connected to electrical terminals in the connectors. Once the above-mentioned direct plug-in electrical connector is used carelessly, the electrical terminals or wires inside the connector will be contaminated with water or other liquids, which may shorten the service life of the electrical connector or cause a short circuit, not only failing to transmit signals, but also possibly Thus destroying the electrical connector, and even destroying the entire electrical and electronic circuit where the electrical connector is located. Therefore, designing an electrical connector with waterproof performance is one of the main development trends in the industry.

Common electrical connectors with waterproof performance in the industry usually adopt a sealing structure of the connecting body, and respectively set sealing parts, such as rubber rings, at the connection between the wire and the connecting body and the butt joint of the male and female connecting bodies, so that Realize the waterproof performance of the electrical connector. For example, a wire sealing part is provided on the wire, and a connecting body sealing part is provided at the butt joint of the male and female connectors, so as to enhance the sealing performance of the electrical connector and at the same time make the electrical connector have a waterproof function. Alternatively, a waterproof cover is added outside the connecting body to realize the waterproof function. In other words, the existing electrical connectors with a waterproof sealing function usually realize the waterproof sealing function of the electrical connector through mechanical means. It should be said that the mechanical waterproof design of electrical connectors in the prior art has achieved certain developments and achievements.

However, although the electrical connector with a mechanical waterproof design can realize the waterproof sealing function of the electrical connector, at the same time, there are some shortcomings: for example, due to the mechanical waterproof design, it is necessary to add For parts with waterproof and sealing performance, the assembly steps are relatively complicated, and sometimes even the original connector structure must be changed; at the same time, it is suitable for mechanical waterproof design in electrical connectors, and the sealing and matching relationship between the sealing part and the sealed part Higher, once the sealing fit between the two is not good, the sealing part will not have the effect of waterproof sealing.

At the same time, the male-female connectors commonly used in existing electrical connectors are butted to realize the electrical connection structure, which also adds additional requirements for the waterproof and sealing function of the electrical connector.

【Content of invention】

In view of at least one aspect of the technical problems mentioned in the background art above, an object of the present invention is to provide an electrical connector with simple structure, easy assembly and waterproof function.

One object of the present invention is to provide an electrical connector with simple wire connection and waterproof function.

The present invention is achieved in this way: an electrical connector, comprising:

The housing is provided with a socket terminal accommodating cavity;

socket terminals placed in corresponding socket terminal accommodating cavities; and

The sealant has low viscosity and insulation properties, wherein the sealant is poured into the cavity of the socket terminal, so that the socket terminal is immersed in the sealant.

Further, the socket terminal includes two receiving ends on the same axis for receiving external wires, and the housing includes two receiving holes, and the two receiving holes are opened on the housing on the same axis to respectively correspond to The two receiving ends of the socket terminal.

Specifically, the socket terminal is a plug-in socket terminal directly used for plugging in electric wires, and the bare wire part of the electric wire is in contact with the socket terminal to form an electrical connection in a connected state.

According to an embodiment of the present invention, a fixing portion is provided in the housing for fixing the socket terminals placed in the socket terminal accommodating cavity.

Preferably, the fixing portion includes a protrusion provided on an upper side of an inner wall of the casing.

Wherein, the casing includes a box body and a sealing cover, and the sealing cover is detachably matched with the box body through a connecting structure.

Further, the connection structure includes: at least one hook provided on one of the sealing cover and the box body; and at least one receiving groove provided on the other of the sealing cover and the box body; wherein, the hook is matched with the receiving groove When connecting, the sealing cover and the box body are integrated to realize the closure of the socket terminal accommodating cavity.

According to an embodiment of the present invention, the housing includes at least two sub-socket terminal accommodating cavities, and the at least two sub-socket terminal accommodating cavities are independent from each other and arranged approximately in parallel.

Further, the housing includes fixing ears provided on the outer wall of the housing for fixing the electrical connector.

The technical effect of the present invention is to provide an electrical connector, which realizes the waterproof function of the electrical connector by injecting a special semi-solidified sealant into the electrical connector. The electrical connector has a simple structure and simplified components, so while realizing the waterproof function, the assembling steps of the connector can be ensured to be simple and convenient. At the same time, the electrical connector provided by the present invention has the function of direct insertion of wires, that is, when the electrical connector is in use, only the wires need to be directly inserted into the electrical connector, so that the bare wire part of the wire and the socket in the electrical connector The electrical connection can be realized by contacting the terminals, and at the same time, the purpose of waterproofing can be realized through the sealant in the electrical connector.

【Description of drawings】

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of an electrical connector with a waterproof function according to the present invention; wherein, the sealing cover structure in the electrical connector is omitted in this illustration;

Fig. 2 is a schematic diagram of an exploded structure of the electrical connector with waterproof function according to the present invention;

Fig. 3 is a schematic diagram of the overall structure of the electrical connector with waterproof function according to the present invention;

Fig. 4 is a schematic structural view of a socket terminal used in the electrical connector with waterproof function according to the present invention.

【Detailed ways】

The following is a description of the specific implementation of the present invention based on specific examples. Those skilled in the art can easily understand the structure, advantages and effects of the present invention from the content disclosed in the following examples.

Moreover, the following drawings are all simplified schematic diagrams, and only illustrate the basic idea of the present invention in a schematic manner, so only the components related to the present invention are shown in the drawings rather than the number, shape and size of the components according to the actual implementation Drawing, the type, quantity and proportion of each component can be changed at will during its actual implementation, and the layout of the components may be more complex.

The present invention provides an electrical connector with a waterproof function. As shown in FIGS. 1-3 , the electrical connector includes a housing and socket terminals 20 accommodated in the housing. According to the present invention, the housing of the electrical connector is provided with a receptacle terminal accommodating cavity 11, and the receptacle terminal 20 is accommodated in the corresponding terminal accommodating cavity, wherein the receptacle terminal accommodating cavity 11 is filled with A sealant with viscous and insulating properties, the socket terminal 20 is immersed in the sealant, so that the socket terminal 20 in the electrical connector has a waterproof effect. That is to say, the electrical connector provided by the present invention realizes the waterproof function of the electrical connector by injecting a special semi-cured sealant into the electrical connector.

It is worth mentioning that the present invention implements the waterproof function of the electrical connector by filling the electrical connector with a sealant with insulating properties. Compared with the mechanical waterproof design and waterproof structure in the existing electrical connector, the electrical connector provided by the present invention introduces the sealant into the existing electrical connector, and designs a new type of waterproof electrical connector. The electrical connector using the sealant as the waterproof part provided by the present invention has a simple structure and simplified parts, so while realizing the waterproof function, the assembling steps of the connector can be ensured to be simple and convenient.

The sealant with sealing performance mentioned in the present invention is a low-viscosity, extensible glue. The characteristic of this sealant is that even in a humid environment, the sealant also has good insulation properties. At the same time, the sealant also has low viscosity and extensibility, which can be used to absorb vibrations or Fill cavities of complex structures.

The socket terminal 20 in the electrical connector includes two receiving ends 21 located on the same axis. The two receiving ends 21 are respectively used to receive external electric wires to realize the function of an electrical connector. According to the present invention, the housing of the electrical connector includes two receiving holes 17 . The two receiving holes 17 are coaxially defined on the housing to respectively correspond to the two receiving ends 21 of the socket terminal 20 .

The electrical connector provided by the present invention has the function of direct insertion of wires, that is, when the electrical connector is in use, only the external wires can be directly inserted into the inside of the electrical connector through the connection hole 17 on the housing, so that the bare wires of the external wires The wire part is in contact with the receiving end 21 on the socket terminal 20 to realize electrical connection. At the same time, through the sealant in the electrical connector, wherein, when the external electric wire is inserted into the electrical connector through the connection hole 17 on the housing, the external electric wire is also immersed in the sealant in the socket terminal accommodating cavity 11 accordingly , to achieve the purpose of waterproofing the external wires.

According to an embodiment of the present invention, as shown in FIG. 4 , the socket terminal 20 in the electrical connector is specifically a plug-in socket terminal for directly plugging in an electric wire, and the plug-in socket terminal includes receiving ends 21 at both ends for Accepts external wires. Wherein, in the connection state, the bare wire part of the external wire contacts the receiving end 21 of the socket terminal 20 to form an electrical connection.

According to the present invention, the housing of the electrical connector is provided with a fixing portion for fixing the socket terminal 20 placed in the socket terminal accommodating cavity 11 . Wherein, when the socket terminal 20 is accommodated in the socket terminal accommodating cavity 11 of the casing, the socket terminal 20 in the socket terminal accommodating cavity 11 is fixed by the fixing part, so as to ensure the limit of the socket terminal in the casing. bit. According to a specific embodiment of the present invention, the wire fixing portion specifically includes a protrusion 12 formed on the upper side of the inner wall of the housing 10 . That is, the protrusion 12 is formed on the upper end of the socket terminal accommodating cavity 11 to limit the socket terminals in the socket terminal accommodating cavity 11 .

According to the present invention, as shown in FIG. 2 , the housing of the electrical connector includes a box body 10 and a sealing cover 13 . Wherein, the sealing cover 13 is detachably matched with the box body 10 through the connection structure, and the socket terminal accommodating cavity 11 is formed between the box body 10 and the sealing cover 13 . According to a specific embodiment of the present invention, the socket terminal accommodating cavity 11 is formed in the box body 10 . However, the socket terminal accommodating cavity 11 in the present invention can also be formed by assembling the sealing cover 13 and the box body 10 .

Specifically, the connection structure connecting the sealing cover 13 and the box body 10 includes at least one hook 14 arranged on one of the sealing cover 13 and the box body 10; At least one receiving groove 15 , wherein when the hook 14 is mated with the receiving groove 15 , the sealing cover 13 and the box body 10 are integrated to realize the closure of the socket terminal accommodating cavity 11 . The cooperation between the sealing cover 13 and the box body 10 is realized through the connection and cooperation between the locking mechanism 14 as the connection structure and the receiving groove 15 . According to a specific embodiment of the present invention, as shown in FIG. 2 , the sealing cover 13 has a square structure corresponding to the box body 10 , and the four hooks 14 respectively extend from four corners of the square structure in the same direction. Correspondingly, on both sides of the box body 10, there are two strip-shaped receiving grooves 15, which receive the hook 14 from the sealing cover 13, and through the connection and cooperation of the hook 14 and the receiving groove 15, the The cooperation between the sealing cover 13 and the box body 10. FIG. 3 is a schematic diagram of the overall structure of the assembled electrical connector provided by the present invention.

According to a specific embodiment of the present invention, the housing includes at least two sub-socket terminal accommodating cavities, wherein the at least two sub-socket terminal accommodating cavities are independent from each other and arranged substantially parallel to accommodate a pair of receptacle terminals 20 respectively.

Meanwhile, the housing of the electrical connector provided by the present invention further includes a pair of fixing ears 6 arranged on the outer side wall of the housing for fixing the electrical connector. In a specific embodiment of the present invention, the pair of fixing ears 6 protrude from the outer side wall of the box body 10 respectively.

The electrical connector provided by the present invention, when assembling, first put the socket terminal 20 into the box body 10, and through the fixing part on the box body 10, including the protrusion 12, the socket terminal 20 is limited and fixed in the socket terminal accommodating cavity 11; then, the sealant is poured into the socket terminal accommodating cavity 11, so that the socket terminal 20 is immersed in the sealant; then, the sealing cover 13 is covered on the box body 10, and through the card as the connection structure The cooperation between the hook 14 and the receiving groove 15 realizes the cooperation between the box body 10 and the sealing cover 13, so that the socket terminal accommodating cavity 11 forms a cavity with a sealing function, and seals the sealant and the socket terminal 20 in it . Therefore, the electrical connector provided by the present invention has simple structure, simplified components, easy assembly and waterproof function. When in use, just insert the external electric wire into the socket terminal accommodating cavity 11 of the electrical connector through the receiving hole 17 on the housing, so that the bare wire part of the external electric wire can be connected with the socket terminal placed in the socket terminal accommodating cavity 11. When the receiving end 21 of 20 contacts, the electrical connection and waterproof function can be achieved. Therefore, the electrical connector provided by the present invention is convenient to use and simple to connect external electric wires.

The above-mentioned embodiments of the present invention only illustrate the principle of the present invention and its effects, rather than limit the present invention. Those skilled in the art should understand that without departing from the spirit and scope of the present invention, Any changes and improvements made to the present invention are within the scope of the present invention. The protection scope of the rights of the present invention shall prevail as defined in the scope of patent application of the present application.

Claims (9)

1. electric connector comprises:

Housing wherein is provided with female terminal containing cavity (11);

Female terminal (20) places corresponding described female terminal containing cavity (11); And

Fluid sealant has low viscosity and insulation property, and wherein, described fluid sealant is poured in the described female terminal containing cavity (11), so that described female terminal (20) is immersed in the described fluid sealant.

2. electric connector as claimed in claim 1, wherein:

Described female terminal (20) comprises two receiving terminals (21) that are positioned on the same axis, is used to receive external cable; And

Include two receiver holes (17) on the described housing, be opened on the described housing the same axis of described two receiver holes (17), with two receiving terminals (21) of the corresponding described female terminal of difference (20).

3. electric connector as claimed in claim 1 or 2, wherein:

Described female terminal (20) is for being directly used in the plug wire female terminal of grafting electric wire, and the bare wire of described electric wire part contacts with described female terminal (20) to form and is electrically connected under wiring state.

4. electric connector as claimed in claim 1, wherein:

Be provided with fixed part in the described housing, be used for fixing the described female terminal (20) that places in the described female terminal containing cavity (11).

5. electric connector as claimed in claim 4, wherein:

Described fixed part comprises the projection (12) of the inwall upside of being located at described housing (10).

6. electric connector as claimed in claim 1, wherein:

Described housing comprises box body (10) and seal cover (13), and described seal cover (13) removably cooperates with described box body (10) by syndeton.

7. electric connector as claimed in claim 6, wherein, described syndeton comprises:

Be arranged at least one grab (14) in seal cover (13) and the described box body (10); And

Be arranged at least one receiving slit (15) on the another one in seal cover (13) and the described box body (10);

Wherein, described grab (14) fuses described seal cover (13) and described box body (10) when connecting with described receiving slit (15), realizes the closure of described female terminal containing cavity (11).

8. electric connector as claimed in claim 1, wherein:

Comprise at least two sub-female terminal container cavities in the described housing, described at least two separate and almost parallel settings of sub-female terminal container cavity.

9. electric connector as claimed in claim 1, wherein:

Further comprise the fixedly ear (16) that is arranged on the described hull outside wall on the described housing, be used for fixing described electric connector.

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