CN217699680U

CN217699680U - PCBA three proofings protection forming device

Info

Publication number: CN217699680U
Application number: CN202221617989.7U
Authority: CN
Inventors: 胡坤映
Original assignee: Norsat International Inc
Current assignee: Norsat International Inc
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-11-01
Anticipated expiration: 2032-06-24

Abstract

The utility model relates to a PCBA technical field discloses a PCBA three proofings protection forming device, including three proofings protection casing, the inner chamber of three proofings protection casing has cup jointed and has placed the protective sheath, place the bottom of protective sheath inner chamber and placed the PCBA body, the top of PCBA body is equipped with the glue dripping equipment, the inner wall of placing the protective sheath scribbles the oleophobic hydrophobic coating of one deck, place the inside shape of protective sheath and the external shape looks adaptation of PCBA body. This PCBA three proofings protection forming device, adopt the soft silica gel material as the protective sheath of placing of encapsulating, convenient dismouting PCBA body, place the oleophobic hydrophobic coating of coating one deck of cloth on the face of protective sheath inside wall and glue contact, can promote glue fast flow and packing, with PCBA body equipment perhaps fixed to inside its cavity of placing the protective sheath, then carry out the encapsulating operation, treat glue dry after from place in the protective sheath take out PCBA body can, place the protective sheath and can use repeatedly many times.

Description

PCBA three proofings protection forming device

Technical Field

The utility model relates to a PCBA technical field specifically is a PCBA three proofings protection forming device.

Background

Printed circuit boards, also known as printed circuit boards, are important electronic components, support for electronic components, and providers of circuit connections for electronic components. It is called a "printed" circuit board because it is made using electronic printing techniques. Before the advent of printed circuit boards, interconnections between electronic components were completed by direct wire connections.

PCBA of present military industry product all has dampproofing, salt fog prevention, mould proof three proofings requirement, and PCBA spraying three proofings lacquer then can satisfy the requirement, but high-power chip (owing to will dispel the heat), connector, plug, socket etc. can not spraying three proofings lacquer, need protect before spraying three proofings, the protection method that now adopts usually: the 3M adhesive tape is used for sticking, the glue on the 3M adhesive tape is easy to stick on the connector or the chip, and when a plurality of complex PCBAs (printed Circuit Board assemblies) need to be protected, the protection working hours are long and the efficiency is low.

For example, the utility model application number of China is (CN 201920837647.8) a PCBA three proofings protection frock structure, including upper protection apron, lower protection apron, lead screw, butterfly nut. The PCBA is clamped by the upper and lower protective cover plates and is screwed down by a butterfly nut through the screw rod. According to the structure, an upper protective cover plate and a lower protective cover plate are designed according to the position and the shape of a device to be protected on the front side and the back side of a PCBA, bosses and grooves are designed at the upper cover plate and the lower cover plate at the position to be protected, threaded supporting hole columns are integrated at the edges of the upper cover plate and the lower cover plate, the supporting hole columns of the upper cover plate are through holes, the supporting hole columns of the lower cover plate are threaded holes, a box cover type structure is designed at the position of a connector to be protected, a part to be protected is covered by a box cover, the supporting hole columns of the upper protective cover plate and the lower protective cover plate are aligned with mounting holes in the PCBA, a screw rod penetrates through the supporting hole columns of an upper protective cover, PCBA mounting holes and screws on the supporting hole column threads on the lower protective cover plate, a butterfly nut is screwed on the screw rod, the upper protective cover plate, the PCBA and the lower protective cover plate are assembled into a whole, other places are hollowed out, the heights of the upper protective cover plate and the lower protective cover plate and the upper protective cover plate and the lower protective cover plate are calculated according to the heights of the device and the bosses and the rest of the edges. The device that needs protection on the PCBA adopts and makes the boss on the apron, and the connector is according to different shapes making the recess or lid cover. And the other parts are hollow, and the upper and lower protective cover plates are screwed down and protected by the butterfly nuts through the lead screws by utilizing the mounting holes on the PCBA. Particularly, three-proofing paint is required to be sprayed around the PCBA, and in order to reduce coating repair and realize one-time completion, the periphery is not only provided with mounting holes and supporting hole columns, but also other parts are leaked. The PCBA is designed into the sealed three-prevention protective shell, and the scheme has the defects of large three-prevention structural space, poor heat dissipation effect, more required materials and higher cost;

in the existing scheme, three-proofing paint is coated on the PCBA for protection. The defects of the scheme are that the coating thickness of the three-proofing paint cannot be too thick (generally less than 1.0 mm), the coating is uneven, the three-proofing effect is poor, in addition, the glue filling is often required to be checked under an ultraviolet lamp after the coating, and the production efficiency is lower;

adopt the scheme of shell + encapsulating to carry out three proofings protection to PCBA among the current scheme. This solution also requires a rigid glue housing to hold the PCBA and then glue to protect it. The disadvantages are as follows: the material cost is relatively high, the shell is difficult to maintain and disassemble after glue drying, the glue drying at the bottom is slow, and the heat dissipation of the PCBA is not good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCBA three proofings protection forming device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a PCBA three proofings protection forming device, includes three proofings protection casing, the inner chamber of three proofings protection casing has cup jointed places the protective sheath, place the bottom of protective sheath inner chamber and placed the PCBA body, the top of PCBA body is equipped with glue dripping equipment, the inner wall of placing the protective sheath scribbles the oleophobic hydrophobic coating of one deck, place the inside shape of protective sheath and the external shape looks adaptation of PCBA body.

As the PCBA three proofings protection forming device's that this application provided preferred improvement mode, it is made by the silica gel material to place the protective sheath.

As the PCBA three proofings protection forming device that this application provided optimizes the improvement mode, place the top of protective sheath and seted up open-top and be close to three proofings protection shells inner wall open-sided installation side groove.

As the PCBA three proofings protection forming device's that this application provided preferred improvement mode, supplementary pulling strip is installed to one side of installation side slot inner chamber bottom.

As the PCBA three proofings protection forming device's that this application provided preferred improvement mode, the side pull opening has been seted up to one side of supplementary pulling strip, and the side pull opening divide into first supplementary side and the supplementary side of second with one side of supplementary pulling strip.

As a preferable improvement of the three-proofing protection forming device for the PCBA provided by the present application, the first auxiliary side is located below the second auxiliary side, and the second auxiliary side is closer to the other side of the auxiliary pulling strip than the first auxiliary side.

As the PCBA three proofings protection forming device that this application provided optimizes the improvement mode, supplementary pulling strip with place and utilize the equivalent material to make between the protective sheath.

As the PCBA three proofings protection forming device's that this application provided preferred improvement mode, the top of supplementary pulling strip and the top parallel and level of placing the protective sheath.

As a PCBA three proofings protection forming device's that this application provided preferred improvement mode, the center of placing protective sheath top front and back side all is equipped with installation side slot and supplementary pulling strip.

As a preferred improvement mode of the PCBA three-proofing protection forming device provided by the application, one ridge on the other side of the auxiliary pulling strip is connected with the bottom of the inner cavity of the mounting side groove.

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

1. this PCBA three proofings protection forming device, adopt the soft silica gel material as the encapsulating place the protective sheath, convenient dismouting PCBA body, place the oleophobic hydrophobic coating of coating one deck on the face of protective sheath inside wall and glue contact, can promote glue fast flow and fill, with PCBA body equipment perhaps fixed to inside its cavity of placing the protective sheath, then carry out the encapsulating operation, treat glue dry after from place in the protective sheath take out PCBA body can, it can to place the protective sheath and can use repeatedly many times.

2. This PCBA three proofings protection forming device is equipped with supplementary pulling strip and installation side slot through the top of placing the protective sheath, when needs will place the protective sheath and tear down from three proofings protection casing in, will assist one side of pulling strip and upwards lift for in supplementary pulling strip perpendicular to installation side slot, be convenient for utilize supplementary pulling strip will place the protective sheath and take out from three proofings protection casing is internal.

3. This PCBA three proofings protection forming device, lie in the supplementary side below of second through first supplementary side, the supplementary side of second is closer to the opposite side of supplementary pulling strip than first supplementary side, convenient to use person upwards lifts supplementary pulling strip more easily, because an arris on supplementary pulling strip opposite side is connected with the bottom of installation side groove inner chamber, be convenient for use the inner chamber of supplementary pulling strip perpendicular to installation side groove, the center through placing protective sheath top front and back side all is equipped with installation side groove and supplementary pulling strip, be convenient for upwards pull up from the both sides of placing the protective sheath top, the efficiency of placing the protective sheath of dismantlement has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a PCBA three-proofing protection molding device of the present invention;

FIG. 2 is a schematic diagram of the PCBA body structure of the PCBA three-proofing protection molding device of the present invention;

FIG. 3 is a schematic view of the structure of the protective sheath for placing the PCBA three-proofing protective molding device of the present invention;

figure 4 is the utility model discloses a PCBA three proofings protection forming device's A department enlarger in figure 3.

In the figure: 1. a three-proofing protective shell; 2. placing a protective sleeve; 3. a PCBA body; 4. installing a side groove; 5. an auxiliary pull bar; 6. laterally pulling the opening; 7. a first auxiliary side; 8. a second auxiliary side; 9. and (4) glue dripping equipment.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Example 1

Please refer to fig. 1-4, the utility model provides a PCBA three proofings protection forming device, including three proofings protection casing 1, three proofings protection casing 1's inner chamber has cup jointed and has placed protective sheath 2, place the PCBA body 3 of 2 inner chambers of protective sheath, the top of PCBA body 3 is equipped with the glue dripping equipment 9, glue dripping equipment 9 is prior art, glue dripping equipment 9 adopts the full-automatic three proofings coating machine desktop formula duplex position PCBA circuit board optical fiber coating of morals news to spout gluey, the inner wall of placing protective sheath 2 scribbles the oleophobic hydrophobic coating of one deck, place the inside shape of protective sheath 2 and PCBA body 3's external shape looks adaptation. The shape in which the protective sleeve 2 is placed may be produced according to the external shape of the PCBA body 3.

Oleophobic and hydrophobic coating: a paint coating, the wetting angle of water or oil is larger after the water or oil is contacted with the paint coating, and water or oil molecules are mutually exclusive; glue pouring: a process for injecting glue into a container for wrapping or sealing.

Adopt the soft silica gel material as the protective sheath 2 of placing of encapsulating, convenient dismouting PCBA body 3, place the oleophobic hydrophobic coating of coating one deck on the face of 2 inside walls of protective sheath and glue contact, can promote glue fast flow and packing, with PCBA body 3 equipment perhaps fixed to it place inside the cavity of protective sheath 2, then carry out the encapsulating operation, treat after glue dry from place protective sheath 2 in take out PCBA body 3 can, place the protective sheath and can use repeatedly many times.

Example 2

In one embodiment of the present invention, the placing protection sleeve 2 is made of soft silica gel material. Has the advantages that: because place protective sheath 2 and make by soft silica gel material, be convenient for place protective sheath 2 used repeatedly many times.

Example 3

The utility model discloses an among the embodiment, place the top of protective sheath 2 and seted up open-top and be close to three proofings protection casing 1 inner wall open-sided installation side channel 4, supplementary pulling strip 5 is installed to one side of 4 inner chamber bottoms in installation side channel, and one side of supplementary pulling strip 5 has been seted up and has been leaned on one side and pulled opening 6, and the side pulls opening 6 and will assist one side of pulling strip 5 and divide into first supplementary side 7 and the supplementary side 8 of second. Has the advantages that: be equipped with supplementary pulling strip 5 and installation side slot 4 through the top of placing protective sheath 2, when needs will place protective sheath 2 and tear down from three proofings protection casing 1, will assist one side of pulling strip 5 and upwards lift for in supplementary pulling strip 5 perpendicular to installation side slot 4, be convenient for utilize supplementary pulling strip 5 will place protective sheath 2 and take out from three proofings protection casing 1.

Example 4

In an embodiment of the invention, the first auxiliary side 7 is located below the second auxiliary side 8, and the second auxiliary side 8 is closer to the other side of the auxiliary pulling strip 5 than the first auxiliary side 7. Has the advantages that: by the first auxiliary side 7 being located below the second auxiliary side 8, the second auxiliary side 8 is closer to the other side of the auxiliary pull strip 5 than the first auxiliary side 7, facilitating the user to lift the auxiliary pull strip 5 upwards more easily.

Example 5

The utility model discloses an in an embodiment, supplementary pulling strip 5 and place and utilize equal material to make between the protective sheath 2, the top of supplementary pulling strip 5 and the top parallel and level of placing protective sheath 2. Has the advantages that: utilize equal material to make between 5 and placing protective sheath 2 through supplementary pulling strip for when PCBA body 3 extrudees supplementary pulling strip 5, can guarantee with place the equal degree of depth of protective sheath 2.

Example 6

The utility model discloses an in an embodiment, the center of placing 2 top front and back sides of protective sheath all is equipped with installation side channel 4 and supplementary pulling strip 5. Has the advantages that: all be equipped with installation side channel 4 and supplementary pulling strip 5 through the center of placing protective sheath 2 top front and back side, be convenient for upwards pull-up from the both sides of placing protective sheath 2 top, improved the efficiency of dismantling and placing protective sheath 2.

Example 7

In one embodiment of the present invention, a ridge on the other side of the auxiliary pulling strip 5 is connected to the bottom of the inner cavity of the installation side groove 4. Has the advantages that: because an edge on the other side of the auxiliary pulling strip 5 is connected with the bottom of the inner cavity of the installation side groove 4, the auxiliary pulling strip 5 is convenient to use in a way of being vertical to the inner cavity of the installation side groove 4.

The working principle is as follows: when using this device, adopt the soft silica gel material as the encapsulating place protective sheath 2, conveniently dismantle and install PCBA body 3, place the oleophobic hydrophobic coating of coating one deck on the glue contact's on protective sheath 2 inside wall and the glue dripping equipment 9 face, owing to be equipped with on placing protective sheath 2 and dredge oily hydrophobic coating, can promote glue fast flow and fill, then with PCBA body 3 equipment or fixed to inside its cavity of placing protective sheath 2, then carry out the encapsulating operation, treat glue dry after from place protective sheath 2 in take out PCBA body 3 can, it can use many times repeatedly to place protective sheath 2.

Be equipped with supplementary pulling strip 5 and installation side slot 4 through the top of placing protective sheath 2, when needs will be placed protective sheath 2 and tear down from three proofings protection casing 1, will assist one side of pulling strip 5 and upwards lift for in supplementary pulling strip 5 perpendicular to installation side slot 4, upwards pull supplementary pulling strip 5, be convenient for utilize supplementary pulling strip 5 will place protective sheath 2 and take out from three proofings protection casing 1, convenient follow-up to placing protective sheath 2 and reuse.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims

1. The utility model provides a PCBA three proofings protection forming device, includes three proofings protection casing (1), its characterized in that, the inner chamber of three proofings protection casing (1) has cup jointed and has placed protective sheath (2), PCBA body (3) have been placed to the bottom of placing protective sheath (2) inner chamber, the top of PCBA body (3) is equipped with drips gluey equipment (9), the inner wall of placing protective sheath (2) scribbles the oleophobic hydrophobic coating of one deck, the inside shape of placing protective sheath (2) and the external shape looks adaptation of PCBA body (3).

2. A PCBA three proofing protection molding device according to claim 1, characterized in that the placing protective sleeve (2) is made of silicone material.

3. The PCBA three-proofing protection forming device according to claim 1, characterized in that the top of the placing protective sleeve (2) is provided with a top opening and a mounting side groove (4) close to the side opening of the inner wall of the three-proofing protection shell (1).

4. A PCBA three proofing protection forming device according to claim 3, c h a r a c t e r i z e d in that an auxiliary pulling strip (5) is mounted at one side of the bottom of the mounting side groove (4) cavity.

5. A PCBA three-proofing protection forming device according to claim 4, characterized in that one side of the auxiliary pulling strip (5) is provided with a side pulling opening (6), and the side pulling opening (6) divides one side of the auxiliary pulling strip (5) into a first auxiliary side surface (7) and a second auxiliary side surface (8).

6. A PCBA three-proofing protection forming device according to claim 5, characterized in that the first auxiliary side (7) is located below the second auxiliary side (8), the second auxiliary side (8) is closer to the other side of the auxiliary pulling strip (5) than the first auxiliary side (7).

7. A device for forming three-proofing protection for PCBAs as in claim 6, wherein said pull assist tab (5) and said protective shield (2) are made of the same material.

8. A PCBA three-proofing protection forming device according to claim 7, characterized in that the top of the auxiliary pulling strip (5) is flush with the top of the placing protective sheath (2).

9. A PCBA three-proofing protection forming device according to claim 3, characterised in that the centers of the front and rear sides of the top of the placing protection sleeve (2) are provided with mounting side grooves (4) and auxiliary pulling strips (5).

10. A PCBA three proofing protection moulding device according to claim 9, characterised in that an edge on the other side of the auxiliary pulling strip (5) is connected to the bottom of the inner cavity of the mounting side groove (4).