CN216248302U - Multiple waterproof construction of radar - Google Patents
Multiple waterproof construction of radar Download PDFInfo
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- CN216248302U CN216248302U CN202122707311.XU CN202122707311U CN216248302U CN 216248302 U CN216248302 U CN 216248302U CN 202122707311 U CN202122707311 U CN 202122707311U CN 216248302 U CN216248302 U CN 216248302U
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Abstract
The utility model relates to a multiple waterproof structure of a radar, which comprises a bottom shell and a face shell, wherein the bottom shell is provided with a plate groove for accommodating a PCBA plate, the face shell covers the bottom shell and seals the plate groove, the face shell and the bottom shell which are mutually covered are positioned at the periphery of the plate groove and are provided with an inner sealing ring and an outer sealing ring, the inner sealing ring comprises a first inner abutting surface formed on the upper surface of the bottom shell and a second inner abutting surface which is matched with the first inner abutting surface and formed on the lower surface of the face shell, the first inner abutting surface and the second inner abutting surface are concave surfaces and/or convex surfaces, the corresponding convex surfaces penetrate into the corresponding concave surfaces to abut against sealing materials between the first inner abutting surface and the second inner abutting surface to realize inner ring sealing, and the sealing materials are potting adhesive and/or silica gel; the outer sealing ring is sealed by pouring sealant or laser welding; the utility model aims to provide a multi-azimuth and multi-level radar waterproof structure which has the characteristics of safety, reliability, simple structure and convenience in installation.
Description
Technical Field
The utility model belongs to the technical field of radar waterproofing, and particularly relates to a radar multiple waterproof structure.
Background
The application range of the radar is wider and wider, and the application range is wider and wider; in the civil field, the radar also brings more and more convenience to the masses; with the continuous development of social economy in China, the refinement requirements of the people on life are higher and higher; therefore, the civil radar is required to have higher precision, so that external interference is removed as far as possible, the radar is enabled to keep a better working state, and under a common condition, rainwater and the like are factors which have a larger influence on the working interference of the radar, so that the waterproof design of the radar is made to have a more important influence on the working state of the radar.
The traditional radar waterproof structure cannot protect the radar box in multiple directions and multiple levels, so that the overall waterproof effect is greatly reduced, and moisture permeating from the outside can damage electronic components in the box body, so that the service life of the radar is influenced; in addition, the existing radar waterproof structure also has the defects of complex waterproof structure and inconvenience in installation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multi-azimuth and multi-level radar waterproof structure which has the characteristics of safety, reliability, simple structure and convenience in installation.
The technical scheme provided by the utility model is as follows:
a radar multiple waterproof structure comprises a bottom shell and a face shell, wherein the bottom shell is provided with a plate groove for accommodating an electronic component, the face shell covers the bottom shell and seals the plate groove, the face shell and the bottom shell which are mutually covered are positioned at the periphery of the plate groove and are provided with an inner sealing ring and an outer sealing ring, the inner sealing ring at least comprises a first inner abutting surface formed on the upper surface of the bottom shell and a second inner abutting surface which is matched with the first inner abutting surface and formed on the lower surface of the face shell, the first inner abutting surface and the second inner abutting surface are concave surfaces and/or convex surfaces, the corresponding convex surfaces penetrate into the corresponding concave surfaces to abut against sealing materials between the first inner abutting surface and the second inner abutting surface to realize inner ring sealing, and the sealing materials are potting adhesive and/or silica gel; the outer sealing ring comprises a first outer abutting surface formed at the edge part of the upper surface of the bottom shell and a second outer abutting surface which is matched with the first outer abutting surface and formed on the lower surface of the face shell, the first outer abutting surface and the second outer abutting surface are concave surfaces and/or convex surfaces, and the corresponding convex surfaces are extruded into the corresponding concave surfaces to fill pouring sealant between the first outer abutting surface and the second outer abutting surface or realize outer ring sealing through laser welding.
Furthermore, when the outer sealing ring is sealed by glue filling, the convex surface of the second outer abutting surface, which corresponds to the first outer abutting surface, penetrates through the corresponding concave surface and is surrounded with the inner wall of the concave surface to form an outer glue filling cavity; and the convex surface of the corresponding position of the second outer abutting surface and the first outer abutting surface penetrates into the corresponding concave surface and surrounds into an outer glue overflowing cavity communicated with the outer glue pouring cavity, and the convex surface penetrates into the corresponding position and pushes the part of the pouring glue to the outer glue overflowing cavity to realize outer ring sealing.
Furthermore, when the inner sealing ring is sealed by glue filling, the convex surface of the second inner abutting surface, which corresponds to the first inner abutting surface, penetrates through the corresponding concave surface and encloses an inner glue filling cavity with the inner wall of the concave surface; and the convex surface of the corresponding position of the second inner butt surface and the first inner butt surface penetrates into the corresponding concave surface and surrounds the concave surface edge into an inner glue overflowing cavity communicated with the inner glue pouring cavity, and the convex surface penetrates into the corresponding position of the concave surface and pushes the part of the pouring glue to the inner glue overflowing cavity to realize inner ring sealing.
Furthermore, the outer glue overflow cavity is communicated with the inner glue overflow cavity.
Furthermore, the roughness of the outer surface of the convex surface in contact with the pouring sealant is Ra12.5, and/or the drawing angle of the inclined planes on the two sides of the convex surface is unilateral 1 degree.
Furthermore, a shot-coated silica gel is formed on the periphery of the convex surface of the corresponding position of the first inner abutting surface and the second inner abutting surface, and the shot-coated silica gel seals a gap between the convex surface and the concave surface of the corresponding position.
Furthermore, the outer surface of the silicon rubber of the injection bag is serrated.
Further, the inner sealing ring is arranged on the top side of the plate groove, and a shielding cover is further arranged between the injection-coated silica gel and the electronic component.
Furthermore, the surface shell covers the bottom shell, and the interference between the surface shell and the bottom shell is 0.5 mm.
Furthermore, the edge of the face shell is provided with one of a plurality of buckles or clamping grooves, the edge of the back shell is provided with the other of the plurality of buckles or clamping grooves, and the plurality of buckles and the plurality of clamping grooves are arranged in one-to-one alignment; the plurality of buckles and the plurality of clamping grooves are buckled one by one, so that the face shell is assembled on the bottom shell.
The utility model adopts the technical scheme and at least has the following beneficial effects:
1) the bottom shell and the face shell which are mutually covered are positioned on the inner sealing ring and the outer sealing ring which are designed on the periphery of the plate groove, so that the all-around protection of electronic components in the radar is realized, the inner sealing ring sealed by pouring sealant or silica gel and the outer sealing ring sealed by pouring sealant or laser welding are adopted, and the sealing strength of the outer sealing ring is not lower than that of the inner sealing ring, so that the multi-level combination of multiple sealing modes is realized, the radar is safe and reliable, and the service life of the radar is prolonged;
2) the inner ring and the outer ring are sealed in a concave-convex surface matching and abutting mode with the sealing material, the structure is simple, the convex surface of the corresponding position extends into the corresponding concave surface when the surface shell covers the bottom shell, the surface shell is tightly assembled to the bottom shell through pouring sealant filled in the concave surface in advance or silica gel coated on the convex surface in advance, and the protective performance is excellent; the compact assembly of the face shell and the bottom shell can be realized rapidly through the laser welding of the concave-convex surface corresponding to the outer sealing ring, the operation is simple, and the conventional screw locking is not needed;
3) the overflow condition of glue in the sealing process of encapsulating is followed to correspond concave surface border and is seted up the groove of overflowing glue on the convex surface, and unnecessary glue overflows from the encapsulating cavity and flows into the cavity of overflowing glue, plays the effect of exhaust and reduction bubble to it is firm to make the encapsulating fill, promotes waterproof performance.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings and the reference numerals thereof used in the embodiments are briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a radar box according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a radar multiple waterproof structure;
FIG. 3 is a cross-sectional view of another radar multiple waterproof structure;
fig. 4 is a sectional view of still another radar multi-waterproof structure.
The notations in the figures have the following meanings:
10-a face shell; 11-a card slot; 20-a bottom shell; 21-buckling; 31-overflow glue cavity; 32-outer glue filling cavity; 33-an internal glue overflow chamber; 34-inner glue filling cavity; 35-wrapping silica gel by injection; 40-a shielding case; 50-PCBA board.
Detailed Description
In order to make the technical features, objects and effects of the present invention more clearly understood, a detailed description of embodiments of the present invention will be given below with reference to the accompanying drawings.
It should be noted that the terms "first" and "second" are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "multi-stage, multi-layer" means at least two stages/layers, e.g., two stages/layers, three stages/layers, etc.; and the term "and/or" is intended to include any and all combinations of one or more of the associated listed items.
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 invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Example 1
Referring to fig. 1 and 2, a radar multiple waterproof structure is shown, which includes a radar box, the radar box is square and has a bottom case 20 and a face case 10 detachably assembled, a board slot for accommodating a PCBA board 50 is concavely formed in the middle of the bottom case 20, and the face case 10 covers the bottom case 20 and seals the board slot. Specifically, the edge of the front shell 10 is provided with one of the plurality of buckles 21 or the plurality of slots 11, the edge of the back shell is provided with the other one of the plurality of buckles 21 or the plurality of slots 11, and the plurality of buckles 21 and the plurality of slots 11 are arranged in a one-to-one alignment manner; the plurality of buckles 21 and the plurality of slots 11 are buckled one by one to assemble the face shell 10 to the bottom shell 20. Compared with the screw locking in the related technology, the fastening assembling mode adopted in the technical scheme has the advantages of rapid and convenient operation, no need of additional locking tools, cost saving and working time shortening.
The face shell 10 and the bottom shell 20 which are mutually covered are positioned on the periphery of the plate groove to form an inner sealing ring and an outer sealing ring, the inner sealing ring comprises a first inner abutting surface formed on the upper surface of the bottom shell, and a second inner abutting surface matched with the first inner abutting surface and formed on the lower surface of the face shell 10, wherein the first inner abutting surface is a convex surface, the periphery of the convex surface is injection-bonded with silica gel through liquid silica gel, the outer surface of the injection-bonded silica gel 35 is in a sawtooth shape in a better implementation mode, when the face shell 10 is covered on the bottom shell 20, the injection-bonded silica gel 35 abuts between the correspondingly positioned concave and convex surfaces and is stressed and deformed, so that external water is prevented from entering the inside of the plate groove, the electrical performance of the PCBA plate 50 is influenced, and the service life of the radar is prolonged.
The outer sealing ring comprises a first outer abutting surface formed at the edge part of the upper surface of the bottom shell and a second outer abutting surface which is matched with the first outer abutting surface and formed on the lower surface of the surface shell, the second outer abutting surface is formed on the surface of the annular rib, the first outer abutting surface is formed on the inner wall surface of the annular groove, pouring sealant is filled in the annular groove in advance, when the surface shell 10 covers the bottom shell 20, the annular rib penetrates into the annular groove and forms an outer pouring cavity 32 with the inner wall of the annular groove and an outer pouring cavity 31 communicated with the outer pouring cavity 32 with the edge of the annular groove, the pouring sealant is divided to the outer pouring cavity 31 under the extrusion action of the annular rib, air remaining in the pouring cavity can be discharged to the outer pouring cavity 31, so that the pouring sealant is fully filled in the outer pouring cavity 32, and the waterproof performance of the outer sealing ring is further improved.
In another preferred embodiment, the roughness of the outer surface of the annular rib is ra12.5, and the drawing angle during injection molding on both sides of the annular rib is single-side 1 degree, the design of the related surface roughness in this embodiment can improve the viscosity between the annular rib and the potting adhesive, thereby avoiding the problems of air bubbles and insufficient potting adhesive during the potting process, and further improving the waterproof performance of the structure.
In another preferred embodiment, the interference between the front shell 10 and the bottom shell 20 is 0.5mm after the assembly is completed, so as to ensure a close fit and a certain interference, and maintain the effectiveness of the waterproof structure.
Adopt the radar box of the above-mentioned waterproof construction of present case to satisfy IP69 waterproof requirement, lie in the interior sealing washer and the outer seal ring of plate groove peripheral design through drain pan 20 and the face-piece 10 that the lid closed mutually, realize the inside PCBA board 50's of radar all-round protection to and adopt the sealed interior sealing washer of silica gel and the sealed outer seal ring of casting glue, realize the multilevel combination of multiple sealing mode, make radar safe and reliable, promote its life.
The inner sealing ring in the scheme can be a circle or a plurality of circles, and can be a plurality of circles of silica gel sealing or a plurality of circles of glue filling sealing or a combination of a plurality of circles of silica gel sealing and glue filling sealing;
the convex surface and the concave surface of the corresponding position of the first inner abutting surface and the second inner abutting surface and the first outer abutting surface in the scheme are annular convex ridges and annular grooves formed on the corresponding sealing surfaces or a combination of convex ridges and grooves distributed on the circumferential direction at intervals.
Example 2
Referring to fig. 3, another radar multiple waterproof structure of the present disclosure is shown, which is basically the same as the structure of embodiment 1 except that:
the inner sealing ring comprises a first outer abutting surface formed on the upper surface of the bottom shell, and a second outer abutting surface which is matched with the first outer abutting surface and formed on the lower surface of the face shell, the second outer abutting surface is formed on the surface of the annular rib, the first outer abutting surface is formed on the inner wall surface of the annular groove, pouring sealant is filled in the annular groove in advance, when the face shell 10 covers the bottom shell 20, the annular rib penetrates into the annular groove, an inner glue filling cavity 34 is formed by surrounding the annular rib and the inner wall of the annular groove, and an inner glue overflowing cavity 33 communicated with the inner glue filling cavity 34 is formed by surrounding the annular rib and is divided into the inner glue overflowing cavity 33 by the extrusion action of the annular rib, so that air remaining in the inner glue filling cavity 34 can be discharged to the inner glue filling cavity 33, and the waterproof performance of the inner sealing ring is further improved.
In a specific implementation mode, the outer glue overflow chamber 31 is communicated with the inner glue overflow chamber 33, so that the waterproof path is lengthened, and the radar box adopting the design meets the waterproof requirement of IP 69.
In a preferred embodiment, the roughness of the outer surface of the annular rib is ra12.5, and the drawing angle during injection molding on both sides of the annular rib is single-sided 1 degree, the design of the related surface roughness in the embodiment can improve the viscosity between the annular rib and the potting adhesive, thereby avoiding the problems of air bubbles and insufficient potting adhesive during the potting process, and further improving the waterproof performance of the structure.
Example 3
Referring to fig. 4, another radar multiple waterproof structure of the present disclosure is shown, which is different from embodiment 1 in that:
the outer sealing ring of the embodiment adopts the first outer abutting surface which is formed at the edge part of the upper surface of the bottom shell in a matched manner and the second outer abutting surface which is formed at the corresponding part of the upper surface of the surface shell to realize the connection in a laser welding manner and simultaneously play the waterproof and dustproof sealing effects.
In this embodiment, the step of snap-assembling the face housing 10 and the bottom housing 20 is omitted, so that the combination is firmer.
In this embodiment, the inner seal ring is arranged on the top side of the plate groove, and a shielding cover 40 is further arranged between the silicon rubber 35 and the PCBA plate 50 for shielding electromagnetic signals outside the radar box, so as to avoid interfering with the reception and transmission of the signals by the PCBA plate 50 and maintain the safe and stable operation of the radar.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A radar multiple waterproof structure comprises a bottom shell and a face shell, wherein the bottom shell is provided with a plate groove for accommodating electronic components, the face shell covers the bottom shell and seals the plate groove, and is characterized in that the face shell and the bottom shell which are mutually covered are positioned at the periphery of the plate groove to form an inner sealing ring and an outer sealing ring,
the inner sealing ring at least comprises a first inner abutting surface formed on the upper surface of the bottom shell and a second inner abutting surface which is matched with the first inner abutting surface and formed on the lower surface of the face shell, the first inner abutting surface and the second inner abutting surface are concave surfaces and/or convex surfaces, the corresponding convex surfaces penetrate into the corresponding concave surfaces to abut sealing materials between the first inner abutting surface and the second inner abutting surface so as to realize inner ring sealing, and the sealing materials are potting adhesive and/or silica gel;
the outer sealing ring comprises a first outer abutting surface formed at the edge part of the upper surface of the bottom shell and a second outer abutting surface which is matched with the first outer abutting surface and formed on the lower surface of the face shell, the first outer abutting surface and the second outer abutting surface are concave surfaces and/or convex surfaces, and the corresponding convex surfaces are extruded into the corresponding concave surfaces to fill pouring sealant between the first outer abutting surface and the second outer abutting surface or realize outer ring sealing through laser welding.
2. The radar multiple waterproof structure according to claim 1, wherein when the outer sealing ring is sealed by glue filling, the convex surface of the second outer abutting surface corresponding to the first outer abutting surface penetrates into the corresponding concave surface and forms an outer glue filling chamber with the inner wall of the concave surface; and
the convex surface of the second outer abutting surface and the corresponding position of the first outer abutting surface penetrates into the corresponding concave surface and surrounds the concave surface edge to form an outer glue overflowing cavity communicated with the outer glue pouring cavity, and the concave surface penetrates into the corresponding position and pushes the part of the pouring glue to the outer glue overflowing cavity to realize outer ring sealing.
3. The radar multiple waterproof structure according to claim 2, wherein when the inner seal ring is sealed by glue filling, the convex surface of the second inner abutting surface corresponding to the first inner abutting surface penetrates into the corresponding concave surface and encloses an inner glue filling chamber with the inner wall of the concave surface; and
the convex surface that supports face and first interior face of supporting in the second corresponds the position wears to stretch into corresponding concave surface and with the concave surface border enclose establish into with the interior excessive glue cavity of interior pouring cavity intercommunication, the convex surface is worn to stretch into and is corresponded the position the concave surface pushes away pouring sealant part to interior excessive glue cavity and realizes that the inner circle is sealed.
4. The radar multi-waterproof structure as claimed in claim 3, wherein the outer glue-overflowing chamber is communicated with the inner glue-overflowing chamber.
5. The radar multiple waterproof structure according to any one of claims 2 to 4, wherein: the roughness of the outer surface of the convex surface in contact with the pouring sealant is Ra12.5, and/or
The draft angle of the inclined planes on the two sides of the convex surface is unilateral 1 degree.
6. The multiple waterproof structure of radar according to claim 1, wherein a silica gel is formed around the convex surface of the first inner abutting surface and the convex surface of the second inner abutting surface, and the silica gel is used for sealing the gap between the convex surface and the concave surface of the corresponding position.
7. The radar multi-waterproof structure as claimed in claim 6, wherein the outer surface of the silica gel is serrated.
8. The multiple waterproof structure of radar according to claim 6, wherein the inner seal ring is disposed on the top side of the plate groove, and a shielding cover is further disposed between the shot-coated silica gel and the electronic component.
9. The radar multiple waterproof structure as claimed in claim 1, wherein the front cover and the bottom cover are interfered with each other by 0.5 mm.
10. The radar multiple waterproof structure according to claim 1, wherein one of a plurality of buckles or slots is provided on the edge of the face shell, the other of a plurality of buckles or slots is provided on the edge of the bottom shell, and the plurality of buckles and the plurality of slots are arranged in one-to-one alignment; the plurality of buckles and the plurality of clamping grooves are buckled one by one, so that the face shell is assembled on the bottom shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122707311.XU CN216248302U (en) | 2021-11-05 | 2021-11-05 | Multiple waterproof construction of radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122707311.XU CN216248302U (en) | 2021-11-05 | 2021-11-05 | Multiple waterproof construction of radar |
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| Publication Number | Publication Date |
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| CN216248302U true CN216248302U (en) | 2022-04-08 |
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| CN202122707311.XU Active CN216248302U (en) | 2021-11-05 | 2021-11-05 | Multiple waterproof construction of radar |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115275471A (en) * | 2022-08-12 | 2022-11-01 | 天津望圆智能科技股份有限公司 | Underwater battery sealing structure, underwater battery sealing device and sealing method |
| DE102022109731A1 (en) | 2022-04-22 | 2023-10-26 | HELLA GmbH & Co. KGaA | Housing for a vehicle device and method for producing a housing |
-
2021
- 2021-11-05 CN CN202122707311.XU patent/CN216248302U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022109731A1 (en) | 2022-04-22 | 2023-10-26 | HELLA GmbH & Co. KGaA | Housing for a vehicle device and method for producing a housing |
| CN115275471A (en) * | 2022-08-12 | 2022-11-01 | 天津望圆智能科技股份有限公司 | Underwater battery sealing structure, underwater battery sealing device and sealing method |
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