CN214757203U

CN214757203U - Electronic device and PCB combined structure and insulating shell thereof

Info

Publication number: CN214757203U
Application number: CN202023297696.9U
Authority: CN
Inventors: 孔维聪; 王小亮; 申志鹏
Original assignee: Mornsun Guangzhou Science and Technology Ltd
Current assignee: Mornsun Guangzhou Science and Technology Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-16
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to an electron device design field, in particular to electron device and with PCB board integrated configuration, insulating casing thereof, wherein, electron device includes: insulating casing and the electronic component of encapsulation in insulating casing, electronic component's pin extends insulating casing, and insulating casing's bottom and both sides are equipped with a plurality of recesses that are used for prolonging creepage distance respectively, under the less condition of casing volume, can form longer creepage distance. The utility model discloses with minimum cost, minimum volume satisfied the ann rule requirement.

Description

Electronic device and PCB combined structure and insulating shell thereof

Technical Field

The utility model relates to an electron device design field, in particular to can strengthen insulating electron device and with PCB board integrated configuration.

Background

With the development and innovation of power electronic technology, the technology of the switching power supply is also continuously innovated, the design and production process technology of the switching power supply is mature and standardized at home and abroad, the lower the cost is, the modularization is accepted by customers, and the product competitiveness is mainly reflected on the product volume. Under the condition of mature scheme and extremely high cost, space saving and volume reduction are the trends of future switching power supply technologies.

Referring to fig. 1, fig. 1 is a combined structure diagram of a conventional optical coupler device and a PCB board, wherein the optical coupler device is composed of an insulating housing 11 and an optical coupler packaged in the insulating housing, and a pin 12 of the optical coupler extends out of the insulating housing 11 to be connected with the PCB board 13. The existing optical coupler device is designed to be relatively large in size in order to meet the creepage distance requirement, however, the area of a PCB of the switching power supply is limited, so the distance between the primary side and the secondary side of the switching power supply is also limited, if the size of the insulating housing 11 is large, the area of the PCB is large, and therefore the existing optical coupler device cannot meet the requirement for the development of the switching power supply towards the thinning direction.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide an electronic device, it can be under the prerequisite of saving space, reducing product volume, reach the effect that satisfies creepage distance, make the product satisfy the ann rule requirement.

The utility model discloses a following technical scheme realizes:

an electronic device, comprising: insulating casing and encapsulation are in electronic component in the insulating casing, electronic component's pin extends insulating casing, and insulating casing's bottom and both sides are equipped with a plurality of recesses that are used for prolonging creepage distance respectively.

In one embodiment, the grooves disposed on the bottom surface communicate with grooves disposed on both sides of the insulating housing.

In one embodiment, the grooves disposed on both sides of the insulating housing extend to the top of the insulating housing.

In one embodiment, the electronic device is an optocoupler device.

In one embodiment, an insulating solid is arranged between the insulating shell and the electronic element, and the insulating solid wraps the periphery of the electronic element.

The utility model also provides an electronic device, include: insulating casing and install the electronic component in insulating casing, electronic component's pin extends insulating casing, and insulating casing is equipped with the recess that a plurality of intervals set up, and every recess has the kerve and upwards extends the both sides groove that forms along insulating casing's both sides face respectively from the both ends of kerve.

In one embodiment, the groove further has a top groove opposite the bottom groove, and both ends of the top groove connect the two side grooves.

In one embodiment, the grooves are equally spaced apart.

The utility model also provides an electron device and PCB board integrated configuration, including electron device and PCB board, electron device installs on the PCB board, and the PCB board is equipped with the rectangular shape groove corresponding with the recess.

The utility model also provides an insulating casing for wrapping up electronic component, insulating casing's bottom and both sides are equipped with the recess that a plurality of intervals that are used for prolonging creepage distance set up respectively.

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

(1) a plurality of grooves used for prolonging the creepage distance are respectively arranged at the bottom and two sides of the insulating shell, so that the longer creepage distance can be formed under the condition that the volume of the insulating shell is smaller.

(2) Through set up the rectangular shape groove corresponding with the recess at the PCB board to ensure switching power supply's former vice limit along insulating casing's surface creepage, and then guarantee that creepage distance satisfies the ann rule requirement.

Drawings

The invention is described in further detail below with reference to the figures and the specific embodiments.

FIG. 1 is a diagram of a conventional optical coupler device and PCB assembly;

fig. 2 is a perspective view of a combined structure of an electronic device and a PCB board according to a first embodiment of the present invention;

fig. 3 is a top view of a combined structure of an electronic device and a PCB board according to a first embodiment of the present invention;

fig. 4 is a perspective view of an electronic device according to a first embodiment of the present invention;

FIG. 5 is another perspective view of FIG. 4;

fig. 6 is a top view of an electronic device according to a first embodiment of the present invention;

fig. 7 is a perspective view of a PCB board according to a first embodiment of the present invention;

fig. 8 is a perspective view of a combined structure of an electronic device and a PCB board according to a second embodiment of the present invention;

fig. 9 is a perspective view of an electronic device according to a second embodiment of the present invention;

fig. 10 is another perspective view of fig. 10.

Detailed Description

First embodiment

Referring to fig. 2 to 7, an optical coupler device and PCB board combined structure is composed of an optical coupler device 1 and a PCB board 2, in this embodiment, the optical coupler device 1 is applied between a primary side and a secondary side of a switching power supply, and includes: the optical coupler comprises an insulating shell 11, an optical coupler packaged in the insulating shell 11 and insulating solids arranged between the insulating shell 11 and the optical coupler and wrapped around the optical coupler. The insulating housing 11 is provided with a plurality of grooves 13 arranged at intervals, the interval distance between the grooves 13 is equal, and each groove 13 has a bottom groove 131, two side grooves 132 formed by extending upward from both ends of the bottom groove along both side surfaces of the insulating housing 11, respectively, and a top groove 133 opposite to and connecting the bottom groove and the two side grooves. Two groups of

pins

12a and 12b of the optical coupler respectively extend out of the bottom of the insulating shell 11 and are used for being electrically connected with the PCB 2.

PCB board 2 is equipped with the rectangular shape groove 21 corresponding with recess 13, and the width in rectangular shape groove 21 is the same with recess 13 width, and when PCB board 2 was installed to opto-coupler device 1, kerve 131 in the recess 13 of insulating casing 11 and rectangular shape groove 21 match each other and communicate, through setting up the rectangular shape groove 21 corresponding with recess 13, ensure switching power supply's former minor edge along insulating casing 11's surface creepage.

The utility model discloses a recess 13 that sets up a plurality of intervals in insulating casing 11's bottom and both sides for the creepage distance between the pin 12a that is located insulating casing 11 front end and the pin 12b that is located the rear end is longer, so, even under the less condition of insulating casing 11 volume, creepage distance also can satisfy the requirement of ann rule.

Second embodiment

Referring to fig. 8 to 10, a combined structure of an optical coupler device and a PCB board is composed of an optical coupler device 1 and a PCB board 2, which is different from the first embodiment in that, in the second embodiment, a groove 13 of an insulating housing 11 is composed of a bottom groove 131 and two side grooves 132 communicated with the bottom groove 131, wherein the two side grooves 132 extend to the top of the insulating housing 11. The height of the insulating housing 11 in the second embodiment is higher than that of the insulating housing 11 in the first embodiment, compared to the first embodiment, thereby ensuring a sufficiently long creepage distance along the top of the insulating housing 11.

The embodiments of the present invention are not limited to the above, and according to the above-mentioned contents of the present invention, the common technical knowledge and the conventional means in the field are utilized, without departing from the basic technical idea of the present invention, the present invention can also make modifications, replacements or changes of other various forms, all falling within the scope of the present invention.

Claims

1. An electronic device, comprising: insulating casing and encapsulation are in electronic component in the insulating casing, electronic component's pin extends insulating casing, its characterized in that, insulating casing's bottom and both sides are equipped with a plurality of recesses that are used for prolonging creepage distance respectively.

2. The electronic device of claim 1, wherein: the grooves formed in the bottom are communicated with the grooves formed in two sides of the insulating shell.

3. The electronic device of claim 1, wherein: the grooves arranged on two sides of the insulating shell extend to the top of the insulating shell.

4. The electronic device of claim 1, wherein: the electronic device is an optical coupler device.

5. The electronic device of claim 1, wherein: and an insulating solid is arranged between the insulating shell and the electronic element and wraps the periphery of the electronic element.

6. An electronic device, comprising: insulating casing and install electronic component in the insulating casing, electronic component's pin extends insulating casing, its characterized in that, insulating casing is equipped with the recess that a plurality of intervals set up, every the recess has the kerve and certainly the both ends of kerve are respectively along the both sides face of insulating casing upwards extends the both sides groove that forms.

7. The electronic device of claim 6, wherein: the groove is also provided with a top groove opposite to the bottom groove, and two ends of the top groove are connected with the two side grooves.

8. The electronic device of claim 6, wherein: the grooves are equally spaced apart.

9. The utility model provides an electron device and PCB board integrated configuration which characterized in that: comprising the electronic device as claimed in claim 1 or 6 and a PCB board on which the electronic device is mounted, the PCB board being provided with elongated grooves corresponding to the grooves.

10. An insulating housing for encasing an electronic component, comprising: the bottom and the two sides of the insulating shell are respectively provided with a plurality of grooves which are arranged at intervals and used for prolonging the creepage distance.