CN216056767U - Switch power supply - Google Patents
Switch power supply Download PDFInfo
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- CN216056767U CN216056767U CN202121851362.3U CN202121851362U CN216056767U CN 216056767 U CN216056767 U CN 216056767U CN 202121851362 U CN202121851362 U CN 202121851362U CN 216056767 U CN216056767 U CN 216056767U
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- power supply
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Abstract
The utility model provides a switching power supply which comprises a shell and a circuit board arranged in the shell, wherein the shell comprises a base, glue blocking blocks arranged at two ends of the base and a cover body arranged on the base, the base is in a strip shape with a left through opening and a right through opening, the size of each glue blocking block is matched with that of the left opening and the right opening of the base, and the glue blocking blocks are fixed and limited through screw columns at the left opening and the right opening of the base. The utility model realizes the glue pouring process by matching the shell base with simple die sinking with the auxiliary structural members of the left and right glue blocking blocks. The utility model realizes the encapsulation of the semi-open shell with the lowest mold opening cost of the structural member, provides better heat dissipation conditions for power devices on the circuit board, simultaneously enables the glue-filled part of the circuit board to realize solid insulation, improves the working reliability of products, and can adapt to more severe environmental conditions.
Description
Technical Field
The utility model relates to the technical field of switching power supplies, in particular to a switching power supply capable of being filled with glue.
Background
With the wide application of switching power supplies in various fields of life, such as electric power, coal mines, energy storage, and the like. In some areas, people have rare smoke and the environment is severe, such as desert, sea and other places, severe conditions of high humidity, high temperature, salt fog, sand dust and the like often occur, and therefore, the reliability of the switching power supply is greatly required. The product is required to work stably and reliably under the above conditions, and the defects that the opening product is not dustproof, waterproof and low in reliability under severe working conditions are overcome.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a switching power supply, which has good heat dissipation performance, low mold opening cost, and can adapt to relatively severe working environment conditions, and the purpose of encapsulating the housing is achieved by assembling the housing base and the auxiliary structural member.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
the utility model provides a switching power supply, includes the shell and locates the inside circuit board of shell, its characterized in that: the shell includes the base, installs the fender that glues the piece at base both ends and installs the lid on the base, the base is about being link up open-ended rectangular shape, keep off the size of gluing the piece and control open-ended size with the base and match, and the screw post through opening part about the base is fixed and spacing.
Furthermore, the cover body, the base and the glue blocking blocks arranged at the two ends of the base form a semi-open type packaging cavity in a surrounding mode.
Further, switching power supply still includes the insulating piece, and the insulating piece covers at the inner wall of base, and the screw post through opening part is fixed and spacing about the base.
Furthermore, be equipped with the double faced adhesive tape on the contact surface of insulating piece and base, realize the inseparable laminating of insulating piece and base.
Furthermore, the circuit board is arranged on the insulating sheet and fixed and limited through screw columns at left and right openings of the base.
Furthermore, the inner wall of the base is provided with a boss for heat conduction.
Furthermore, a silicon adhesive tape is adhered on the boss.
Furthermore, the rubber blocking block is made of plastic or metal.
Furthermore, a plurality of radiating holes which are uniformly distributed are formed in the upper portion of the cover body.
Furthermore, the cover body and the base are made of aluminum alloy materials.
Compared with the prior art, the utility model has the following beneficial effects:
1. the switch power supply shell is a semi-open type packaging cavity defined by the cover body, the base and the glue blocking blocks arranged at the two ends of the base, the aim of glue pouring is achieved by matching the left glue blocking block auxiliary structural member and the right glue blocking block auxiliary structural member with the base, and the die sinking cost of the base of the integrated switch power supply shell is reduced.
2. The switch power supply can radiate heat through the contact of the lug boss on the inner wall of the base of the shell, thereby providing excellent radiating conditions and improving the reliability of products.
Drawings
FIG. 1 is an exploded view of a switching power supply according to the present invention;
FIG. 2 is a diagram of a switch mode power supply of the present invention;
reference numerals: a cover body 1; a glue blocking block 2; a base 3; a screw post 31; a circuit board 4; screw through holes 41; a silicon adhesive tape 5; an insulating sheet 6; a double-sided adhesive tape 61; a wiring terminal 7; a screw 8; a metal bead 9; a boss 10; and heat dissipation holes 11.
Detailed Description
Fig. 1 is an explosion schematic diagram of a switching power supply of the present invention, and the switching power supply includes a housing and a circuit board 4 disposed inside the housing, where the housing includes a base 3, glue blocking blocks 2 mounted at two ends of the base 3, and a cover 1 mounted on the base 3, and a semi-open encapsulation cavity is defined by the cover 1, the glue blocking blocks 2, and the base 3, and connection terminals 7 of the circuit board 4 are led out from two ends of the encapsulation cavity.
The switch power supply also comprises an insulating sheet 6, wherein the insulating sheet 6 covers the inner wall of the base 3 and is fixed and limited by screw columns 31 at the left opening and the right opening of the base 3; meanwhile, the double-faced adhesive tape 61 is arranged on the contact surface of the insulating sheet 6 and the base 3, so that the insulating sheet 6 and the base 3 are tightly attached.
The cover body 1 is made of aluminum alloy, and a plurality of radiating holes 11 which are evenly distributed are formed in the upper portion of the cover body.
The glue blocking block 2 is made of plastic or metal according to the requirements of users, the shape and the size of the glue blocking block can be customized and the mould opening can be realized, and the auxiliary and insulating effects can be realized.
The base 3 is made of aluminum alloy, a boss 10 for heat conduction is arranged on the inner wall of the base, a circuit board power device can be in contact with the boss 10 for heat dissipation, a silicon adhesive tape 5 is pasted on the boss 10 for insulation and heat conduction, and the boss 10 and the silicon adhesive tape 5 provide excellent heat dissipation conditions for products and increase the reliability of the products.
The circuit board 4 is placed on the insulating sheet 6, matched with the screw posts 31 of the base 3 through the screw through holes 41, and the circuit board 4 is fixed on the base 3 by the screws 8. The circuit board 4 further comprises a metal pressing strip 9, and the power device on the circuit board 4 is locked on the metal base 3 through the metal pressing strip 9, so that the heat dissipation function can be enhanced.
The assembly process of the switching power supply comprises the following steps:
the glue blocking block 2 is arranged at the left opening and the right opening of the strip-shaped base 3 and is fixed and limited through screw columns 31 at the left opening and the right opening of the base 3;
the insulating sheet 6 is covered on the inner wall of the base 3, and is fixed and limited by the screw columns 31 at the left and right openings of the base 3, and meanwhile, the insulating sheet 6 is tightly attached to the base 3 through the double-sided adhesive tape 61 on the insulating sheet 6;
fixing the silicon adhesive tape 5 on the side surface of the base 3 with the heat-conducting boss 10 through the back adhesive;
placing the circuit board 4 on the insulation sheet 6, matching the screw through hole 41 with the screw column 31 of the base 3, and fixing the circuit board 4 on the base 3 through the screw 8;
locking the power device on the circuit board 4 on the base 3 by using the metal pressing strip 9;
if glue needs to be poured, the glue is poured into a closed space formed by the base 3 and the glue blocking block 2;
the cover body 1 is placed on the base 3, and screws are locked to complete assembly, and fig. 2 is a finished product diagram of the switching power supply of the utility model.
The utility model realizes the glue pouring process by matching the shell base with simple die sinking with the auxiliary structural members of the left and right glue blocking blocks. The semi-open shell encapsulation is realized with the lowest mold opening cost of the structural part, better heat dissipation conditions are provided for power devices on the circuit board, solid insulation can be achieved on the glue injection part of the circuit board, the working reliability of products is improved, and the semi-open shell encapsulation can adapt to more severe environmental conditions.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and it will be apparent to those skilled in the art that several modifications and decorations can be made without departing from the spirit and scope of the present invention, and these modifications and decorations should also be considered as the protection scope of the present invention, which is not described herein by way of example, and the protection scope of the present invention should be subject to the scope defined by the claims.
Claims (10)
1. The utility model provides a switching power supply, includes the shell and locates inside circuit board (4) of shell, its characterized in that: the shell includes base (3), installs in the fender of base (3) both ends and glues piece (2) and install lid (1) on base (3), base (3) are about being and link up open-ended rectangular shape, keep off the size of gluing piece (2) and base (3) and control open-ended size matching, and screw post (31) through base (3) left and right sides opening part are fixed and spacing.
2. The switching power supply according to claim 1, characterized in that: the packaging structure comprises a cover body (1), a base (3) and a semi-open packaging cavity surrounded by glue blocking blocks (2) arranged at two ends of the base (3).
3. The switching power supply according to claim 1, characterized in that: still include insulating piece (6), insulating piece (6) cover the inner wall at base (3), and screw post (31) through base (3) left and right sides opening part are fixed and spacing.
4. The switching power supply according to claim 3, characterized in that: be equipped with double faced adhesive tape (61) on the contact surface of insulating piece (6) and base (3), realize insulating piece (6) and base (3)'s close laminating.
5. The switching power supply according to claim 3, characterized in that: the circuit board (4) is arranged on the insulating sheet (6) and is fixed and limited through screw columns (31) at left and right openings of the base (3).
6. The switching power supply according to claim 1, characterized in that: the inner wall of the base (3) is provided with a boss (10) for heat conduction.
7. The switching power supply according to claim 6, wherein: the boss (10) is pasted with a silicon adhesive tape (5).
8. The switching power supply according to claim 1, characterized in that: the glue blocking block (2) is made of plastic or metal.
9. The switching power supply according to claim 1, characterized in that: a plurality of radiating holes (11) which are uniformly distributed are formed above the cover body (1).
10. The switching power supply according to claim 1, characterized in that: the cover body (1) and the base (3) are made of aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121851362.3U CN216056767U (en) | 2021-08-10 | 2021-08-10 | Switch power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121851362.3U CN216056767U (en) | 2021-08-10 | 2021-08-10 | Switch power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216056767U true CN216056767U (en) | 2022-03-15 |
Family
ID=80557704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121851362.3U Active CN216056767U (en) | 2021-08-10 | 2021-08-10 | Switch power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216056767U (en) |
-
2021
- 2021-08-10 CN CN202121851362.3U patent/CN216056767U/en active Active
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