CN210928368U - Circuit board supporting assembly for encapsulation process of electronic product and electronic product - Google Patents
Circuit board supporting assembly for encapsulation process of electronic product and electronic product Download PDFInfo
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- CN210928368U CN210928368U CN201921418925.2U CN201921418925U CN210928368U CN 210928368 U CN210928368 U CN 210928368U CN 201921418925 U CN201921418925 U CN 201921418925U CN 210928368 U CN210928368 U CN 210928368U
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- circuit board
- printed circuit
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- housing
- sleeve
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Abstract
The utility model relates to a circuit board supporting component for embedment technology of electronic product, electronic product include the casing, and circuit board supporting component sets up in the casing, and this circuit board supporting component includes: a support member having a generally cylindrical shape and being capable of extending through a corresponding support hole in a first printed circuit board to be potted in the housing so as to clamp the first printed circuit board with a portion of the support member; and the fixing device fixes the supporting piece and the first printed circuit board in place in the shell of the electronic product. The utility model discloses still relate to an electronic product including circuit board supporting component.
Description
Technical Field
The utility model relates to a circuit board supporting component for embedment technology of electronic product. The utility model discloses still relate to an electronic product including circuit board supporting component.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
In electronic equipment, the potting process is a process of mechanically or manually potting a liquid compound into an electronic product provided with electronic components, and curing the liquid compound into a thermosetting polymer insulating material with excellent performance under normal temperature or heating conditions. Liquid compounds are typically thermosetting plastics or silicone rubber gels, but epoxy resins are also common. In the potting process, the electronic product is placed in a mold, which is then filled with an insulating liquid compound that hardens to permanently protect the electronic components in the electronic product. The mold forms part of an electronic product and may provide shielding or heat dissipation functions in addition to functioning as a mold.
By the encapsulating process, the integrity of an electronic product can be enhanced, the resistance to external impact and vibration is improved, and sensitive electronic elements are protected; the insulation between internal elements and circuits is improved, and the miniaturization and the light weight of devices are facilitated; the direct exposure of elements and circuits is avoided; moisture and corrosive agents are removed, and the waterproof and damp-proof performance of the device is improved; improve the service performance and the stability parameter.
Before potting, a circuit board or the like on which electronic components are mounted needs to be mounted in a housing of an electronic product. The prior art mounts are typically used to mount only one circuit board and the mounting process is complicated. In addition, the mounts used for different electronic products are also different.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a circuit board supporting component makes the embedment technology of the electronic product who contains the polylith circuit board simplify to improve embedment efficiency, reduce cost.
The utility model provides a circuit board supporting component for embedment technology of electronic product, electronic product include the casing, and circuit board supporting component sets up in the casing, and this circuit board supporting component includes: a support member having a generally cylindrical shape and being capable of extending through a corresponding support hole in a first printed circuit board to be potted in the housing so as to clamp the first printed circuit board with a portion of the support member; and the fixing device fixes the supporting piece and the first printed circuit board in place in the shell of the electronic product.
In one embodiment, the support is formed with a neck section and an expansion section, respectively, along an axial direction of the support from one end to the other end of the support, the neck section being capable of passing through a corresponding support hole in the first printed circuit board, the expansion section abutting against the first printed circuit board.
In one embodiment, an inwardly projecting abutment is provided on the inside of the housing, thereby clamping the first printed circuit board between the abutment and the flared section of the support.
In one embodiment, the circuit board support assembly further comprises a first sleeve, one end of the first sleeve abuts against the inner side of the bottom of the housing, and the other end of the first sleeve abuts against the first printed circuit board, thereby clamping the first printed circuit board between the first sleeve and the expanding section of the support.
In one embodiment, the other end of the first sleeve abutting the first printed circuit board is provided with a recess, which is capable of at least partially accommodating the neck section.
In one embodiment, the support further comprises an intermediate section between the neck section and the flared section, the intermediate section passing through a corresponding support hole in the first printed circuit board.
In one embodiment, a second printed circuit board is disposed in the housing, and the circuit board support assembly further includes a second sleeve disposed outside the middle section such that one end of the second sleeve abuts against the first printed circuit board to clamp the first printed circuit board between the first sleeve and the second sleeve, and the other end of the second sleeve abuts against the second printed circuit board to clamp the second printed circuit board between the second sleeve and the expanded section of the support member.
In one embodiment, the housing includes additional printed circuit boards, and the support assembly further includes a corresponding number of additional sleeves, such that the first printed circuit board, the second printed circuit board, and the additional printed circuit boards are sequentially arranged from the bottom of the housing to the outside, such that the respective printed circuit boards are alternately arranged with the respective sleeves, and the printed circuit boards located at the outermost sides are sandwiched between the sleeves and the expanding section of the support member.
In one embodiment, a fixation device comprises: a bolt installed to be inserted into a housing through a bolt hole provided in a bottom of the housing of the electronic product such that a head of the bolt abuts against an outer side of the bottom of the housing and passes through the support; and a nut threadedly engaged with the bolt and abutting the portion of the support.
In one embodiment, the electronics are transmitters of a coriolis mass flowmeter.
The utility model also provides an electronic product, this electronic product includes two at least foretell circuit board supporting component.
Drawings
Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which like features or components are designated by like reference numerals and which are not necessarily drawn to scale, and in which:
fig. 1 shows a cross-sectional view of an electronic product comprising a circuit board support assembly according to the prior art when performing a potting process;
fig. 2 shows a cross-sectional view of an electronic product comprising a circuit board support assembly according to a first embodiment when performing a potting process;
fig. 3 shows a perspective view of a portion of a circuit board support assembly according to a first embodiment;
fig. 4 shows a cross-sectional view of an electronic product comprising a circuit board support assembly according to a second embodiment when performing a potting process;
fig. 5 shows a perspective view of a portion of a circuit board support assembly according to a second embodiment;
fig. 6 shows a cross-sectional view of an electronic product comprising a circuit board support assembly according to a third embodiment when performing a potting process;
fig. 7 shows a cross-sectional view of an electronic product comprising a circuit board support assembly according to a fourth embodiment when performing a potting process.
Detailed Description
The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, like reference numerals indicate like or similar parts and features. The drawings are only schematic representations, not necessarily showing specific dimensions and proportions, of the various embodiments of the invention, the relative details or construction of the various embodiments of the invention may be illustrated in exaggerated form in particular drawings or portions thereof.
Fig. 1 shows an electronic product in the prior art when a potting process is performed using a circuit board support assembly. The circuit board support assembly according to the prior art includes a bolt 20, a supporter 40, and a nut 60. The bolt 20 is inserted into the housing 10 through the bolt hole 12 provided in the bottom portion 11 of the housing 10 such that the head 21 of the bolt 20 abuts against the outside of the bottom portion 11 of the housing 10. Although not shown in the drawings, it is conceivable for those skilled in the art to provide a seal between the head 21 of the bolt 20 and the bottom 11 of the housing 10 for sealing. The bolts 20 also serve as fixing means for mounting the entire electronic product into the chassis. After passing through the housing 10, the bolt 20 passes through the seat 13 protruding inward from the inner side of the bottom 11 of the housing 10. Subsequently, the bolt 20 passes through the support hole in the first printed circuit board 31. The bolt 20 then passes through the support 40. The bolt 20 also acts as a ground so that the bolt 20 and the support 40 are coaxial. The support member 40 is generally cylindrical. The end of the support 40 close to the seat 13 comprises a neck section 41. The neck section 41 passes through the above-mentioned support hole in the first printed circuit board 31. The end of the neck section 41 is flared to form a flared portion 411. The flared portion 411 is flared radially outward after passing through the first printed circuit board 31, and abuts against the upper end surface of the holder 13. The support 40 also includes an intermediate section 42. The flared portions 411 of the intermediate section 42 and the neck section 41 each abut against the first printed circuit board 31, thereby clamping the first printed circuit board 31 between the intermediate section 42 and the flared portions 411. The flared portion 411 abuts against an end of the holder 13, thereby disposing the first printed circuit board 31 and the support 40 clamped on the first printed circuit board 31 within the housing 10.
Two supports 40 are shown in fig. 1. However, it will be appreciated by those skilled in the art that more than two supports 40 may be provided. With the above configuration, the first printed circuit board 31 is fixed.
In order to fix the second printed circuit board 32 in the electronic product, the support 40 comprises a constricted section 43 at the end opposite the neck section 41. The constricted section 43 passes through a support hole in the second printed circuit board 32 so that the intermediate section 42 abuts against the second printed circuit board 32. Meanwhile, a fixing plate 70 is provided at an end of the case 10 opposite to the bottom 11. The fixing plate 70 has an outer peripheral edge engaged with an end portion of the housing 10 opposite to the bottom 11. A fixing hole 71 through which the bolt 20 passes is provided in the fixing plate 70. A cylindrical fixing boss 72 protrudes from the inner side of the fixing plate 70 to the inner side of the electronic product around the fixing hole 71. The securing boss 72 abuts the second printed circuit board 32, thereby clamping the second printed circuit board 32 between the securing boss 72 and the intermediate section 42 of the support 40. The constricted section 43 of the support 40 penetrates into the fastening boss 72. The fixing hole 71 of the fixing plate 70 is provided with a recess 73 at the outer side of the fixing plate 70. The nut 60 is screw-engaged with the bolt 20 and is screwed against the bottom of the recess 73, thereby fixing the first printed circuit board 31, the second printed circuit board 32 and the support member 40 in the housing 10 and tightly fitting the fixing plate 70 with the housing 10.
After the fixing plate 70 is fixed to the housing 10, potting filler is injected into the housing 10 through a potting port provided in the fixing plate 70 in the direction of the arrow shown in the drawing to perform potting. At the same time, the gas inside the housing is exhausted through a plurality of exhaust ports (not shown) provided on the fixing plate 70 until the potting filler overflows from the fixing plate 70, thereby ensuring complete potting of the product. After the potting is completed, the fixing plate 70 needs to be strongly removed, thereby reducing the weight of the product and reducing the cost of the product. Since the fixing plate 70 is bonded with the potting filler after the potting is completed, the strong removal of the fixing plate 70 increases man-hours, costs, and risks, and affects the beauty.
Fig. 2 shows a circuit board support assembly according to a first embodiment of the present invention. The circuit board support assembly according to the first embodiment of the present invention includes a bolt 20, a support member 40, a first sleeve 51, a second sleeve 52, and a nut 60. The bolt 20 is inserted into the housing 10 through the bolt hole 12 provided in the bottom portion 11 of the housing 10 such that the head 21 of the bolt 20 abuts against the outside of the bottom portion 11 of the housing 10. The inside of the housing 10 of the electronic product is not provided with the holder 13 but with the first sleeve 51. One end of the first sleeve 51 abuts against the inside of the bottom 11 of the housing 10. The other end of the first sleeve 51 abuts against the first printed circuit board 31, and is provided with a concave portion 511 at the other end. The bolt 20 passes through the first sleeve 51. The omission of the support 13 from the housing 10 makes the configuration of the housing 10 simpler, reducing man-hours and cost. Also, the size of the first sleeve 51 can be selected as appropriate to accommodate different electronic products.
As shown in fig. 2, the bolt 20 passes through the first printed circuit board 31 and the support member 40 after passing through the first sleeve 51. Fig. 3 shows in particular a support 40 and a second sleeve 52 according to a first embodiment of the invention. The support member 40 is generally cylindrical. The support 40 is formed with a neck section 41, an intermediate section 42, and an expansion section 44 from one end to the other end of the support 40, respectively, along the axial direction of the support 40, and the outer diameter of the neck section 41, the outer diameter of the intermediate section 42, and the outer diameter of the expansion section 44 increase in this order. The end of the support 40 adjacent the first sleeve 51 is a neck section 41. The recess 511 of the first sleeve 51 is capable of at least partially receiving the neck section 41.
As shown in fig. 2, the middle section 42 passes at least through the support hole in the second printed circuit board 32 after installation. The second sleeve 52 is disposed over the intermediate section 42. One end of the second sleeve 52 abuts against the first printed circuit board 31, thereby clamping the first printed circuit board 31 between the first sleeve 51 and the second sleeve 52. The other end of the second sleeve 52 abuts against the second printed circuit board 32. The length of the second sleeve 52 may be appropriately sized as needed to adjust the spacing between the first printed circuit board 31 and the second printed circuit board 32. It will be appreciated by those skilled in the art that the first sleeve 51 and the second sleeve 52 may be made of a metallic material or a non-metallic material.
As shown in fig. 2, one end of the expanding section 44 of the supporting member 40 abuts against the second printed circuit board 32, and the other end abuts against the nut 60, thereby clamping the second printed circuit board 32 between the second sleeve 52 and the expanding section 44. The nut 60 is threadedly engaged with the bolt 20, thereby fixing the first and second printed circuit boards 31 and 32 in place. The utility model discloses a circuit board supporting component can be used for the interval between the printed circuit board. Compare the fixed mode among the prior art, the utility model discloses owing to need not to use the fixed plate, fixed when can simplifying the embedment. Furthermore, utilize the utility model discloses an electronic product that circuit board supporting component made, the surface after the encapsulation is very level and smooth, has reduced man-hour, the cost is reduced. Furthermore, through handling the sleeve, the utility model discloses a circuit board supporting component can also be applied to different electronic product in a flexible way.
Will the utility model discloses a circuit board supporting component is when being used for the printed circuit board more than two, only need increase supporting component's length and telescopic quantity can.
Fig. 4 shows a circuit board support assembly according to a second embodiment of the present invention. The circuit board support assembly according to the second embodiment of the present invention includes a bolt 20, a support member 40, a first sleeve 51, a second sleeve 52, a third sleeve 53, and a nut 60. Fig. 5 shows in particular a support 40, a second sleeve 52 and a third sleeve 53 according to a second embodiment of the invention. As shown in fig. 4, in order to mount the additional third printed circuit board 33, the length of the middle section 42 of the support member 40 is increased. The middle section 42 passes through a support hole in the third printed circuit board 33. A third sleeve 53 is provided between the second printed circuit board 32 and the third printed circuit board 33. The third sleeve 53 is disposed over the intermediate section 42. Thereby, the second printed circuit board 32 is sandwiched between the second sleeve 52 and the third sleeve 53, and the third printed circuit board 33 is sandwiched between the third sleeve 53 and the expanding section 44. The flared section 44 abuts the nut 60. The nut 60 is threadedly engaged with the bolt 20 to fix the first, second and third printed circuit boards 31, 32 and 33 in place.
The utility model discloses an electronic product can learn the specific quantity of embedment filler along for example when the embedment is carried out to the arrow point direction that shows in figure 2, figure 4, through earlier stage sample, comes quantitative embedment according to this quantity when batch production to observe or detect the upper surface height of embedment filler at any time when the embedment, whether in time control embedment filler spills over.
Although the utility model discloses a circuit board supporting component has more obvious advantage when being applied to the printed circuit board more than two, nevertheless obviously, the utility model discloses a circuit board supporting component also can be used to only a printed circuit board.
Fig. 6 shows a circuit board support assembly according to a third embodiment of the present invention. The direction of the arrows shown in the figures is the potting direction. The circuit board support assembly according to the third embodiment of the present invention includes a bolt 20, a support member 40, a first sleeve 51, and a nut 60. One end of the first sleeve 51 abuts against the inside of the bottom 11 of the housing 10. The other end of the first sleeve 51 abuts against the first printed circuit board 31. The bolt 20 passes through the first sleeve 51, the first printed circuit board 31 and the support 40. The support member 40 is generally cylindrical. The support 40 is formed with a neck section 41 and an expansion section 44, respectively, from one end to the other end of the support 40 in the axial direction of the support 40, and the outer diameter of the neck section 41 and the outer diameter of the expansion section 44 increase in order. The end of the support 40 adjacent the first sleeve 51 is a neck section 41. The first sleeve 51 is configured to at least partially receive the neck section 41. One end of the first sleeve 51 abuts against the first printed circuit board 31, clamping the first printed circuit board 31 between the first sleeve 51 and the flared section 44.
Fig. 7 shows a circuit board support assembly according to a fourth embodiment of the present invention. The circuit board support assembly according to the fourth embodiment of the present invention includes a bolt 20, a support member 40, and a nut 60. In this embodiment, the first sleeve 51 is not provided, but an inwardly protruding abutment 13 is provided on the inner side of the bottom 11 of the housing 10. The bolt 20 passes through the holder 13, the first printed circuit board 31 and the support 40. The support member 40 is generally cylindrical. The support 40 is formed with a neck section 41 and an expansion section 44, respectively, from one end to the other end of the support 40 in the axial direction of the support 40, and the outer diameter of the neck section 41 and the outer diameter of the expansion section 44 increase in order. The end of the support 40 adjacent the seat 13 is a neck section 41. The seat 13 can at least partially accommodate the neck section 41. The abutment 13 abuts against the first printed circuit board 31, clamping the first printed circuit board 31 between the abutment 13 and the flared section 44.
Alternatively, in addition to using the bolt 20 and the nut 60 as fixing means, a person skilled in the art can also envisage fixing the first printed circuit board 31, the second printed circuit board 32, (the third printed circuit board 33,) the support 40, the first sleeve 51, the second sleeve 52(, the third sleeve 53) with other fixing means, such as clamps, pins, snaps, etc.
As described above, according to the utility model discloses a circuit board supporting component has following advantage:
(1) the installation is convenient;
(2) the space is saved, and the advantages of more than two printed circuit boards are particularly obvious;
(3) the cost is saved;
(4) the fixtures such as the fixing plate and the like which are bonded with the potting material do not need to be installed, so that the electronic product with the fixing plate removed is more attractive; and
(5) the utility model discloses only need carry out a small amount of amendments on printed circuit board and plastic casing and just can use to current electronic product.
Here, the exemplary embodiments of the present invention have been described in detail, but it should be understood that the present invention is not limited to the specific embodiments described and illustrated in detail above. Numerous modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the invention. All such variations and modifications are intended to fall within the scope of the present invention. Moreover, all the components described herein may be replaced by other technically equivalent components.
Claims (11)
1. A circuit board support assembly for use in a potting process for an electronic product, the electronic product including a housing, the circuit board support assembly being disposed in the housing, the circuit board support assembly comprising:
a support member, generally cylindrical, extendable through a corresponding support hole in a first printed circuit board to be potted within the housing, to clamp the first printed circuit board with a portion of the support member; and
a fixing device that fixes the support member and the first printed circuit board in place within the housing of the electronic product.
2. The circuit board support assembly according to claim 1, wherein the support is formed with a neck section and an expansion section, respectively, from one end to the other end of the support in an axial direction of the support, the neck section being passable through a corresponding support hole in the first printed circuit board, the expansion section abutting against the first printed circuit board.
3. A circuit board support assembly according to claim 2, wherein an inwardly projecting abutment is provided on the inside of the housing, thereby clamping the first printed circuit board between the abutment and the flared section of the support.
4. The circuit board support assembly of claim 2, further comprising a first sleeve having one end abutting the inside of the bottom of the housing and another end abutting the first printed circuit board, thereby clamping the first printed circuit board between the first sleeve and the flared section of the support.
5. A circuit board support assembly according to claim 4, wherein the other end of the first sleeve abutting the first printed circuit board is provided with a recess configured to at least partially receive the neck section.
6. The circuit board support assembly of claim 4, wherein the support further comprises an intermediate section between the neck section and the flared section, the intermediate section passing through a corresponding support hole in the first printed circuit board.
7. The circuit board support assembly of claim 6, wherein a second printed circuit board is disposed in the housing, the circuit board support assembly further comprising a second sleeve disposed outside the middle section such that one end of the second sleeve abuts the first printed circuit board to clamp the first printed circuit board between the first sleeve and the second sleeve and another end of the second sleeve abuts the second printed circuit board to clamp the second printed circuit board between the second sleeve and the flared section of the support.
8. The circuit board support assembly according to claim 7, wherein the housing includes an additional printed circuit board, and the circuit board support assembly further includes a corresponding number of additional sleeves, such that the first printed circuit board, the second printed circuit board, and the additional printed circuit board are sequentially arranged from a bottom of the housing to an outer side, such that the respective printed circuit boards are alternately arranged with the respective sleeves, and the outermost printed circuit board is sandwiched between the sleeves and the expanded section of the support member.
9. The circuit board support assembly of claim 1, wherein the securing means comprises:
a bolt installed to be inserted into the housing through a bolt hole provided in a bottom of the housing of the electronic product such that a head of the bolt abuts against an outer side of the bottom of the housing and passes through the support; and
a nut threadedly engaged with the bolt and abutting the portion of the support.
10. The circuit board support assembly of claim 1, wherein the electronic product is a transmitter of a coriolis mass flowmeter.
11. An electronic product, characterized in that it comprises at least two circuit board support assemblies according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921418925.2U CN210928368U (en) | 2019-08-28 | 2019-08-28 | Circuit board supporting assembly for encapsulation process of electronic product and electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921418925.2U CN210928368U (en) | 2019-08-28 | 2019-08-28 | Circuit board supporting assembly for encapsulation process of electronic product and electronic product |
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| Publication Number | Publication Date |
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| CN210928368U true CN210928368U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921418925.2U Active CN210928368U (en) | 2019-08-28 | 2019-08-28 | Circuit board supporting assembly for encapsulation process of electronic product and electronic product |
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| CN (1) | CN210928368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112449538A (en) * | 2019-08-28 | 2021-03-05 | 高准有限公司 | Circuit board supporting assembly for encapsulation process of electronic product and electronic product |
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2019
- 2019-08-28 CN CN201921418925.2U patent/CN210928368U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112449538A (en) * | 2019-08-28 | 2021-03-05 | 高准有限公司 | Circuit board supporting assembly for encapsulation process of electronic product and electronic product |
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