CN203895680U - Waterproof connector - Google Patents

Abstract

The utility model relates to a waterproof connector, which comprises an insulating seat body, an inner shell, an elastic cushion body and an outer shell, wherein a plurality of connecting terminals are embedded on the insulating seat body; an accommodating space is formed in the inner shell, the insulating base body is assembled to the rear end of the inner shell, one end of the connecting terminal is positioned in the accommodating space, and the other end of the connecting terminal is kept outside the inner shell; the elastic cushion body is provided with a plurality of through holes, the configuration and the position of each through hole are matched with the connecting terminal, the elastic cushion body is assembled at the rear end of the insulating seat body, and the connecting terminal can penetrate through the through holes; the front end of the outer shell is provided with an assembling groove, the configuration of the assembling groove is matched with the elastic cushion body, the outer shell is sleeved on the inner shell, the insulating seat body and the elastic cushion body from the rear, the elastic cushion body is extruded, the periphery of the elastic cushion body is tightly pressed to the inner wall surface of the assembling groove, the through hole is inwards contracted to tightly press the connecting terminal, and the connecting terminal can be separated by the elastic cushion body in the assembling groove in a watertight way. The utility model discloses a waterproof connector need not coat waterproof glue separately, can improve manufacturing cost and packaging efficiency by a wide margin.

Description

waterproof connector

technical field

The utility model relates to a waterproof connector, in particular to provide a plurality of through holes on an elastic pad, so that when the elastic pad is installed in an outer casing, the peripheral edge of the elastic pad can be pressed against the outer casing. The inner wall surface of the body, and the through holes can press the waterproof connector with multiple connection terminals inward.

Background technique

With the advancement of communication technology and electronic technology, electronic devices with various functions, such as: mobile phones that allow people to communicate at both ends of the world, walkmans that allow people to listen to music anytime and anywhere, and assist people in handling various things Personal Computer (Personal Computer), etc., have become an indispensable tool for modern people, and now different types of electronic devices have been integrated into one, making it possible to use mobile phones to listen to music, or use personal computers to make calls, etc. It is no longer a distant dream. However, although these electronic devices can bring many conveniences to people, they are most afraid of short circuit caused by contact with water, or corrosion damage caused by moisture. At present, although most electronic devices are covered with beautifully designed casings to prevent dust and moisture from the outside from contacting the precision electronic components inside, these electronic devices are designed to receive electronic signals and power from the outside , it is usually necessary to configure a connector on the fuselage. Since the connector is not assembled on the electronic device in a watertight manner, if the user uses the electronic device in wet weather or accidentally knocks over the electronic device located on the If there is any water-filled object (such as a water cup) around the device, the moisture and moisture from the outside will be able to invade the interior of each electronic device through the gap in the connector, causing the precision electronic components in each electronic device to be damaged. Exposure to water or moisture may cause short circuit or corrosion damage, causing great inconvenience to users. Therefore, in recent years, waterproof design for connectors has become a market demand that cannot be ignored.

Generally speaking, the most critical part of the waterproof design of the connector is the connecting terminal, because the connecting terminal is mostly assembled in the connector in the form of inserting, so in the past, the industry usually needs to do a little glue work on the connecting terminal, and use waterproof glue to seal The waterproof function can be perfectly formed only when the interfitting gap of the connecting terminal is closed. Please refer to Figure 1, which is a waterproof connector of the prior art. The waterproof connector 1 includes an insulating seat 11, a waterproof gasket 12, a metal shell 13 and a metal plate 14. The insulating seat The body 11 is embedded with a plurality of connection terminals 110, and its outer edge is recessed with a ring groove 111. One end of these connection terminals 110 is exposed from the front end of the insulating base body 11, and the other end is exposed from the front end of the insulating base body 11. The rear end extends out; the configuration of the waterproof gasket 12 matches the ring groove 111 so that it can be embedded in the ring groove 111; the metal shell 13 is provided with an insertion groove 130, and its top side is There are two positioning holes 131, and the configuration of these positioning holes 131 is matched with the configuration of the positioning part 151 on a plug connector 15, so as to be able to engage with the positioning part 151, and the insertion slot 130 is for Accommodate the insulating seat body 11 and the waterproof gasket 12; the metal plate body 14 can be positioned on the top side of the metal shell 13, and a positioning groove 141 is respectively provided at a position corresponding to the positioning hole 131, so as to The positioning hole 131 is covered. Since the positioning grooves 141 can seal the positioning holes 131, and the waterproof gasket 12 can be watertight against the inner wall of the insertion groove 130, the waterproof performance of the waterproof connector 1 can be ensured.

Based on the above, although the waterproof connector 1 does have a good waterproof effect, however, in actual implementation, the waterproof connector 1 still has some deficiencies and deficiencies, which are described in detail as follows:

(1) high welding cost: please refer to Fig. 1 again, the metal plate body 14 must be welded on the top side of the metal shell 13 by laser spot welding to ensure that the positioning hole 131 can be sealed watertight, However, laser spot welding will significantly increase the production cost of the waterproof connector 1 , so it is not cost-effective.

(2) The assembly procedure is complicated: the waterproof gasket 12 is sleeved on the insulating base 11 in an embedded manner. In this case, not only is it time-consuming, but also the waterproof gasket 12 cannot be completely and tightly positioned in the ring groove 111 due to the deviation of the installation angle, thereby destroying its waterproofness.

(3) Glue dispensing operation is required: As mentioned above, since the connecting terminals 110 may be assembled in the insulating base 11 by inserting, after the waterproof connector 1 is assembled, the operator still needs to go through The procedure of dispensing glue seals the rear end of the insulating base body 11 and the position adjacent to the other end of the connecting terminals with waterproof glue, so that the waterproof function can be perfectly formed. The glue dispensing operation will not only increase the production cost, but also increase the production cost. It will affect the assembly process of the waterproof connector 1 , so it is not an optimal design method for the industry.

(4) The waterproof effect is not good: the general waterproof glue is in a solid state after curing, but when going through the SMT process (Surface Mounted Technology), due to the influence of high temperature, the waterproof glue and the material covered by the waterproof glue will be affected by the thermal expansion rate or when the user inserts or pulls out the waterproof connector, if the action is too violent or the direction of the force is deflected, these conditions may cause the cured waterproof glue to crack, and then Water leakage occurs, so there are still many areas to be improved in terms of waterproof performance.

Therefore, how to design a waterproof connector that not only has perfect waterproof performance, but also can simplify the tedious procedures such as laser spot welding and dispensing operations in the prior art, so as to improve the production cost and assembly efficiency of the waterproof connector, Promptly become the important problem that the utility model intends to solve here.

Utility model content

In view of the problem that the prior art waterproof connector needs to use a little glue to seal the insertion gap of the connecting terminal, the designer finally designed this utility model after many years of practical experience and after many experiments and tests. A new type of waterproof connector is expected to provide a connector structure with a simpler structure and easier assembly.

The utility model provides a waterproof connector, comprising:

An insulating seat body, a tongue plate is provided at the front end, and a plurality of connecting terminals are embedded in the insulating seat body, one end of each connecting terminal is exposed to the surface of the tongue plate, and the other end is connected by the insulating seat body extends from the back end of the

The inner casing has a front opening at its front end and a rear opening at its rear end, the front opening communicates with the rear opening to form an accommodating space in the inner casing, the structure of the accommodating space The shape matches the insulating seat body, the insulating seat body can be assembled into the inner casing through the rear opening, the tongue plate can be positioned in the accommodating space, and the other end of the connecting terminal can be retained in a position adjacent to the rear opening outside of the inner housing;

The elastic pad is provided with a plurality of through holes, the position and configuration of each of the through holes match the other end of the connecting terminal, and the elastic pad can be positioned to the rear end of the insulating base, so The other end of the connection terminal can pass through the through hole; and

The outer shell has an assembly groove at its front end, the configuration of the assembly groove matches the configuration of the elastic pad, the outer shell can be displaced toward the rear end of the inner shell, and is sheathed on the The rear end of the inner housing, the elastic pad can be compressed, the periphery of the elastic pad is pressed against the corresponding inner wall surface of the assembly groove, and the through hole can be pressed inward to the connecting terminal In the corresponding position, the two ends of the connecting terminal can be separated in the assembly groove by the elastic pad in a watertight area.

The above-mentioned waterproof connector, wherein a plurality of assembly holes are opened on the rear end of the outer casing corresponding to the positions of the connecting terminals, each of the assembly holes communicates with the assembly groove, and the outer casing The body can be socketed to the inner shell, and the front and rear sides of the elastic pad can be pressed tightly by the rear end of the insulating base and the corresponding inner wall surface of the assembly groove respectively. The elastic pad and the The assembly groove can achieve an elastic and tight watertight connection, and the through hole of the elastic pad can be pressed to the corresponding part of the connecting terminal, and the through hole of the elastic pad can reach the corresponding part of the connecting terminal. Elastic tight watertight connection, at the same time, the other end of the connection terminal can be welded to the circuit board through the assembly hole.

The above-mentioned waterproof connector, wherein, the waterproof connector further includes a metal plate body, two corresponding ends of the metal plate body are respectively extended with embedded parts; the top surface of the outer shell is provided with two An embedding hole, when the metal plate body is positioned on the outer shell, the embedding part is embedded in the embedding hole, and the metal plate body can be fixed on the top surface of the outer shell.

The above-mentioned waterproof connector, wherein, the top surface of the inner housing is also provided with two positioning holes, and the assembly groove of the outer housing is respectively recessed with two positions corresponding to the positioning holes. In the positioning slot, the micro-USB standard external connector can be inserted into the waterproof connector, and the two hooks on the external connector can be embedded in the positioning hole and positioned in the positioning slot.

The waterproof connector of the present utility model realizes the waterproof function because the elastic pad body provided on it can respectively press the inner wall surface of the assembly groove outward and the connecting terminal inward. Therefore, when assembling the waterproof connector, the operator , that is, there is no need to go through an additional dispensing process to seal the connection terminals, and accordingly, the production cost can be greatly reduced and the assembly efficiency can be improved.

Description of drawings

Fig. 1 is a schematic diagram of a waterproof connector in the prior art;

Fig. 2 is a three-dimensional schematic diagram of the waterproof connector of the present invention;

Fig. 3 is another perspective view of the waterproof connector of the present invention;

Fig. 4 is a schematic diagram of the elastic pad body of the waterproof connector of the present invention; and

Fig. 5 is a schematic diagram of the outer shell of the waterproof connector of the present invention.

Explanation of reference signs:

current technology

Waterproof connector 1

Insulation seat body 11

Connecting terminal 110

Ring groove 111

Waterproof gasket 12

Metal shell 13

Socket 130

Positioning hole 131

Metal plate body 14

Locating slot 141

Plug connector 15

Positioning Department 151

The utility model

Waterproof connector 2

Insulation seat body 21

Connecting terminal 210

Tongue plate 211

Inner shell 22

Accommodating space 220

Positioning hole 221

Elastic cushion body 23

Through hole 230

Outer shell 24

Assembly slot 240

Assembly hole 241

Locating slot 242

Embedded hole 243

Metal plate body 25

Embedded card department 251

Front opening C1

Rear opening C2

Vertical height H1, H2, H3

Horizontal width W1, W2, W3

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings.

The utility model is a waterproof connector, as shown in Figure 2, it is the first preferred embodiment of the utility model, the waterproof connector 2 includes an insulating base 21, an inner shell 22, an elastic pad Body 23 and an outer shell 24, for the convenience of illustrating the structure of the present utility model, the front of the waterproof connector 2 is the lower left of FIG. 2, and the rear of the waterproof connector 2 is the upper right. The front end of the insulating seat body 21 is extended with a tongue plate 211, and a plurality of connecting terminals 210 are embedded in it, and one end of each connecting terminal 210 is exposed to the bottom surface of the tongue plate, and the other end can be connected by the insulating seat. The rear end of the body 21 is extended so that after the waterproof connector 2 is assembled, the other ends of the connecting terminals 210 can be soldered to a circuit board of an electronic device.

Please refer to Fig. 2 and Fig. 3, the front end of the inner casing 22 is provided with a front opening C1, and its rear end is provided with a rear opening C2, the front opening C1 and the rear opening C2 communicate with each other, so that the inner casing 22 can An accommodating space 220 is formed in the body 22, and the configuration of the accommodating space 220 matches the insulating seat body 21, so that when the insulating seat body 21 is assembled into the inner casing 22 through the rear opening C2 , the insulating seat body 21 can cover the rear opening C2, at this time, the tongue plate 211 can be positioned in the accommodating space 220, and the other ends of the connecting terminals 210 will remain adjacent to the outside of the inner housing 22 The location of the rear opening C2.

The elastic pad 23 is provided with a plurality of through holes 230, the position and configuration of each of the through holes 230 are matched with the other ends of the connecting terminals 210. When assembling, the elastic pad 23 is positioned to the The rear end of the insulating seat body 21 is to abut against the rear end surface of the insulating seat body 21, so that the other ends of the connecting terminals 210 can pass through the through holes 230, and make the connecting terminals 210 adjacent to the other end The positions are held in the through holes 230.

Please refer to Fig. 2 and Fig. 4, the outer casing 24 is made of a high temperature resistant insulating material, and its front end is recessed inwardly to form an assembly groove 240, the configuration of the assembly groove 240 is the same as that of the elastic pad 23 Matching, when assembling, the assembler first assembles the insulating seat body 21, the elastic cushion body 23 and the inner casing 22 into one, and sets the outer casing 24 to the inner casing 22 from the rear. to cover the insulating base 21, the elastic pad 23 and the inner casing 22. At this time, the elastic pad 23 is extruded by an external force, so its peripheral edge can be pressed outwards to the assembly groove 240, and at the same time, the through holes 230 are pressed inward to the corresponding parts of the connecting terminal 210, so that the two ends of the connecting terminals 210 can be watertight by the elastic pad 23 in the assembly groove 240. In this way, the waterproof function can be perfectly achieved. Because the elastic pad body 23 can simultaneously tighten the assembly groove 240 and the connecting terminals 210 at the same time, the industry does not need to implement it separately. The dispensing operation can greatly improve the production cost and assembly efficiency.

The core concept of the utility model is to complete the waterproofing through the elastic deformation of the elastic cushion body 23, and the waterproof connector 2 of the utility model belongs to a "dry process", which can effectively avoid possible pollution and wear caused by the dispensing operation , and by simplifying the assembly process, the production cost is more streamlined, which is conducive to the implementation of the industry. Please refer to Fig. 2 and Fig. 4, when assembling, the thickness of the elastic pad body 23 will be greatly compressed, and the compressed shape will be reflected in the outer edge of the elastic pad and the through holes 230. In order to realize the aforementioned watertight pressing function, and in actual implementation, the configuration of the elastic pad 23 is slightly equal to the size of the assembly groove 240, that is, it can exert its waterproof performance, but it is not limited to be larger than Or less than the assembly groove 240, in order to facilitate people in the relevant technical field to understand the waterproof principle of the utility model, briefly explain the changes of the elastic pad body 23 in different situations, the implementation of the utility model is not limited thereto , declare here: Please refer to Fig. 2 to Fig. 5, which is the first preferred embodiment of the present utility model, in this embodiment, the rear end of the outer shell 24 corresponds to the positions of the connection terminals 210 A plurality of assembly holes 241 are opened respectively, and each assembly hole 241 communicates with the assembly groove 240. The longitudinal height H1 and the transverse width W1 of the assembly groove 240 are slightly larger than the longitudinal height H2 of the elastic pad 23 when it is not compressed. and the lateral width W2.

Accordingly, when the outer shell 24 is sleeved on the inner shell 22, the front and rear sides of the elastic pad 23 will be compressed and forced by the rear wall of the insulating seat 21 and the corresponding wall of the assembly groove 240. Tight, so that the front and rear thickness of the elastic pad 23 is compressed, the compressed thickness will be reflected on the outer edge of the elastic pad 23 and the apertures of the through holes 230: the longitudinal direction of the compressed elastic pad 23 The height H3 and the lateral width W3 will expand toward the periphery, and the through hole 230 of the elastic pad 23 can be contracted inwardly, so that the vertical height H3 and the lateral width W3 of the elastic pad 23 can be pressed tightly to the assembly groove 240 The corresponding inner wall surface, and make the through hole 230 of the elastic pad 23 can be pressed to the corresponding position of the connecting terminal 210. At this time, the elastic pad 23 produces a The tightening force will make the two ends of the connecting terminals 210 separated by the elastic cushion body 23 in the assembly groove 240 in a watertight area, so as to achieve a definite waterproof function.

Another design method of the present utility model is now described: please refer to Fig. 2 to Fig. 5 again, in the second preferred embodiment of the present utility model, the vertical height H1 and the transverse width W1 of the assembly groove 240 are respectively The longitudinal height H2 and the transverse width W2 of the elastic pad 23 when not compressed, therefore, when the outer shell 24 is sleeved on the inner shell 22, the peripheral edge of the elastic pad 23 will be covered by the assembly groove 240 The inner wall surface is compressed tightly, so that the longitudinal height H3 and lateral width W3 of the compressed elastic cushion body 23 will be compressed to be consistent with the assembly groove 240, and at the same time, the through holes 230 will also shrink inwardly, The parts adjacent to the other end of the connecting terminals 210 can be fixed in the through holes 230 in a watertight manner.

Also, please refer to Fig. 2 and shown in Fig. 5, in a preferred embodiment of the present utility model, still offer two positioning holes 221 on the top surface of this insulating seat body 21, the configuration of each this positioning hole 221 and The two hooks on the connector of a Micro USB (Micro USB) specification are matched, so that when an external connector of Micro USB specification is plugged into the waterproof connector 2, the hooks can be connected with the waterproof connector 2. The positioning holes 221 are embedded with cards; the inner wall surface of the outer shell 24 corresponding to the positioning holes 221 is respectively recessed with a positioning groove 242 for accommodating the hook on the external connector of the Micro USB specification. In addition, in this embodiment, the waterproof connector 2 further includes a metal plate body 25, two corresponding ends of the metal plate body 25 are respectively extended with at least one inserting portion 251, and the top surface of the outer shell 24 is provided with There are a plurality of embedding holes 243, the metal plate body 25 can be positioned on the top surface of the outer shell 24, and is fixed to the outer shell through the mutual embedding of the embedding parts 251 and the embedding holes 243 24 to suppress the problem of Electromagnetic Interference.

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present utility model shall fall within the protection scope of the present utility model. And it should be noted that each component of the utility model is not limited to the above-mentioned overall application, and each technical feature described in the specification of the utility model can be selected to be used alone or in combination according to actual needs. Therefore, The utility model naturally covers other combinations and specific applications related to the innovation of this case.

Claims (4)

1. a water-proof connector, is characterized in that, described water-proof connector comprises:

Insulating base frame, its front end extension is provided with hyoplastron, is embedded with branched splicing ear in described insulating base frame, and described in each, expose to described hyoplastron surface one end of splicing ear, and its other end is extended by the rear end of described insulating base frame;

Inner housing, its front end offers open front, its rear end offers after-opening, described open front is connected with described after-opening, in described inner housing, form accommodation space, the configuration of described accommodation space and described insulating base frame match, and described insulating base physical efficiency is assembled in described inner housing by described after-opening, described hyoplastron can be positioned in described accommodation space, and the other end of described splicing ear can remain on the position of the outer contiguous described after-opening of described inner housing;

Elastic pad, offers a plurality of through holes on it, described in each, the other end of the position of through hole and configuration and described splicing ear matches, and described cushion physical efficiency is positioned to described insulating base frame rear end, and the other end of described splicing ear can pass described through hole; And

Shell body, its front end is provided with assembling grove, the configuration of described assembling grove and the configuration of described elastic pad match, described shell physical efficiency is towards the rear end movement of described inner housing, and be sheathed with the rear end of described inner housing, described cushion physical efficiency is compressed, the periphery packing of described elastic pad is to the corresponding internal face of described assembling grove, and the packing inwardly of described through hole, to the corresponding position of described splicing ear, can be separated to come by described elastic pad watertight area between the two ends of described splicing ear in described assembling grove.

2. water-proof connector as claimed in claim 1, it is characterized in that, position corresponding to described splicing ear on the rear end of described shell body offers respectively a plurality of assembly holes, described in each, assembly hole is connected with described assembling grove, described shell physical efficiency socket is to described inner housing, the front and back sides of described elastic pad can be respectively by the corresponding internal face institute packing of the rear end of described insulating base frame and described assembling grove, described elastic pad can be reached the urgent watertightness of elasticity with described assembling grove and be connected, and the through hole energy packing of described elastic pad is to the corresponding position of described splicing ear, the through hole of described elastic pad can be reached the urgent watertightness of elasticity with the corresponding position of described splicing ear and be connected, simultaneously, the other end of described splicing ear can be soldered on circuit board through described assembly hole.

3. water-proof connector as claimed in claim 1 or 2, is characterized in that, described water-proof connector also comprises metal plate, in two corresponding end of described metal plate, extends and is provided with embedding part respectively; The end face of described shell body is provided with two embedding holes, and in the situation that described metal plate is positioned on described shell body, described embedding part embeds in described embedding hole, and described metallic plate physical efficiency is fixed on the end face of described shell body.

4. water-proof connector as claimed in claim 3, it is characterized in that, the end face of described inner housing also offers two location holes, position corresponding to location hole described in each in the assembling grove of described shell body is concaved with respectively two location notchs, the aerial lug of micro USB specification can insert described water-proof connector, and two snap fits on described aerial lug can embed described location hole, and are positioned in described location notch.