CN220794263U - Ultra-thin capacitance door handle sensor - Google Patents
Ultra-thin capacitance door handle sensor Download PDFInfo
- Publication number
- CN220794263U CN220794263U CN202321858662.3U CN202321858662U CN220794263U CN 220794263 U CN220794263 U CN 220794263U CN 202321858662 U CN202321858662 U CN 202321858662U CN 220794263 U CN220794263 U CN 220794263U
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- door handle
- handle sensor
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- circuit board
- injection molding
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- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000011247 coating layer Substances 0.000 claims abstract description 32
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims description 28
- 238000000576 coating method Methods 0.000 claims description 28
- 238000002347 injection Methods 0.000 claims description 26
- 239000007924 injection Substances 0.000 claims description 26
- 239000003990 capacitor Substances 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 abstract description 34
- 239000003292 glue Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000006223 plastic coating Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an ultrathin capacitance door handle sensor which comprises a PCBA plate, an injection molding coating layer and a wire harness, wherein the wire harness is arranged on the PCBA plate, the PCBA plate is arranged in the injection molding coating layer, and the injection molding coating layer wraps the whole PCBA plate and the wire harness. According to the ultrathin capacitive door handle sensor provided by the utility model, a mold low-pressure injection molding method is adopted, a layer of plastic is directly coated on the outer side of the PCBA plate, the thickness of the door handle sensor is further reduced, and the style of the handle is flexibly designed and adjusted according to the appearance of the PCBA plate, so that the requirement of more severe handle space design is met.
Description
Technical Field
The utility model relates to the technical field of automobile manufacturing, in particular to an ultrathin capacitance door handle sensor
Background
The current automobile electronics rapidly develop, and as the requirements of people on driving comfort are continuously improved, the sensor switch is more applied to the automobile electronics to replace a transmission button switch, so that the consistency of the appearance of the door handle is ensured, and meanwhile, the sensor switch has stronger reliability.
In door handle switches, the demand of replacing a button switch by using a door handle sensor is increased, but the door handles of different automobile brands and even different automobile types of the same brand are personalized, the modeling demand is different, the hidden door handle is popularized, the design space of the door handle sensor is strictly required, the current handle sensor is mostly required to be customized and designed according to the automobile type, the thickness of the product is thicker, and the space utilization rate is lower.
The traditional door handle is in an arc shape, an outer sensing area and an inner sensing area, namely a thumb touch area and a four-finger holding area are defined according to the requirements of customers, and the product shape of the arc-shaped handle sensor is customized; the hidden door handle molding is generally straight, custom-built flat, straight handle sensor product molding.
Because the hidden door handle is more space-constrained than conventional door handles, the handle sensor thickness requirements are more stringent, typically less than 8mm, whereas conventional handle sensor thickness spaces may allow for up to 10mm-12mm.
Whether the door handle is a traditional door handle or a hidden door handle, the shell is required to be filled with glue again due to the limitation of the glue filling process, so that the thickness of the door handle cannot be smaller.
It can be seen how to accommodate the use requirements of conventional handles and hidden handles while designing a thinner, lighter handle sensor product is a problem to be solved in the art.
Disclosure of Invention
Aiming at the technical problem of thicker thickness of the existing door handle sensor, the utility model aims to provide the ultrathin capacitive door handle sensor, which can further reduce the thickness of the door handle sensor, flexibly design and adjust the style of a handle, meet the more severe design requirement of the space of the handle and well overcome the problems in the prior art.
In order to achieve the above purpose, the ultra-thin capacitive door handle sensor provided by the utility model comprises a circuit board, a wire harness, an injection molding coating layer and a wire harness, wherein the wire harness is arranged on a PCBA board, the injection molding coating layer is completely coated on the circuit board, and the wire harness extends out of the injection molding coating layer coated on the circuit board.
In some embodiments of the utility model, a single capacitor is provided on the circuit board.
In some embodiments of the utility model, the circuit board is provided with a double capacitor or a multiple capacitor.
In some embodiments of the utility model, the injection molded coating is a plastic layer.
In some embodiments of the utility model, the outside of the injection molded coating layer that is coated on the circuit board is integrally molded with a clip.
In some embodiments of the utility model, the outside of the injection molding coating layer coated on the circuit board is integrally formed with a limit rib.
In some embodiments of the utility model, the outside of the injection molded coating layer that is coated on the circuit board is integrally molded with the positioning posts.
According to the ultrathin capacitive door handle sensor provided by the utility model, a mold low-pressure injection molding structure is adopted, a layer of injection molding coating layer is directly coated on the outer side of the circuit board in an injection molding manner, the thickness of the door handle sensor is further reduced, the style of a handle is flexibly designed and adjusted according to the appearance of the PCBA board, and the requirement of a more severe handle space design is met.
Drawings
The utility model is further described below with reference to the drawings and the detailed description.
FIG. 1 is a schematic cross-sectional view of an ultra-thin capacitive door handle sensor according to the present utility model;
FIG. 2 is a schematic top view of an ultra-thin capacitive door handle sensor according to the present utility model;
FIG. 3 is a schematic view of a buckle on an ultra-thin capacitive door handle sensor according to the present utility model;
FIG. 4 is a schematic diagram of a structure of a spacing rib on an ultra-thin capacitive door handle sensor according to the present utility model;
FIG. 5 is a schematic view of a positioning post on an ultra-thin capacitive door handle sensor according to the present utility model;
fig. 6 is a schematic structural diagram of a dodging groove on an ultra-thin capacitive door handle sensor according to the present utility model.
Circuit board 10, plastic coating part 20, wire harness 30, and buckle 40;
the limiting ribs 50, the positioning columns 60 and the avoiding grooves 70;
an upper coating portion 21, a lower coating portion 22, and a side coating portion 23.
Detailed Description
The utility model is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the utility model easy to understand.
The existing door handle sensor is based on the structural arrangement of the shell and the glue filling fit, so that the overall thickness is large, meanwhile, the plasticity is poor, the customizing design is inconvenient, and the problem of low space utilization rate in practical application is caused. The utility model eliminates the prior structural scheme that a circuit board is arranged in a shell and glue is filled in the shell, and innovatively and directly forms an injection molding coating layer on the circuit board, and the injection molding coating layer directly coats the whole circuit board without the shell, so that the utility model can prevent water and dust and effectively reduce the thickness of the whole sensor; in addition, the handle has stronger plasticity in practical application, can flexibly design and adjust the style of the handle, and meets the requirement of more severe handle space design.
Referring to fig. 1 and 2, a specific configuration example of an ultra-thin capacitive door handle sensor given in this example is described.
Referring to the relevant drawings, the ultra-thin capacitive door handle sensor presented in this example is structurally comprised mainly of a circuit board 10, an injection-molded cladding layer 20, and a wiring harness 30.
The circuit board 10 here is specifically constituted by a PCBA board, on which the corresponding capacitors are integrated, and provided with a wiring harness 30; the circuit board 10 is coated with a layer of injection coating layer 20 outside the PCBA 10 and the wire harness 30 in an injection molding mode, the whole PCBA 10 and the wire harness 30 are wrapped by the injection coating layer 20, the PCBA 10 and the wire harness 30 on the PCBA 10 are directly sealed in the circuit board, sealing protection is formed on the circuit board, and the wire harness 30 extends out of the injection coating layer 20.
The specific arrangement structure of the PCBA board 10 in the sensor is not limited in this embodiment, and the sensor can be made into a single capacitor, a double capacitor or multiple capacitors according to the actual sensing range of the customer, that is, the single capacitor, the double capacitor or the multiple capacitors are integrally arranged on the PCBA board 10.
The injection-molded coating 20 is injection-molded from a mold. As an example, the PCBA board 10 can be placed in a corresponding low-pressure injection mold, the low-pressure injection molding equipment is started to perform injection molding, an ultra-thin injection molding coating layer 20 is formed on the outer side of the PCBA board 10 by injection molding, and the whole PCBA board 10 is sealed and wrapped, so that the PCBA board can be waterproof and dustproof; meanwhile, the thickness of the formed sensor is reduced to be lower than 6mm from 8mm, and the style of the handle can be flexibly designed and adjusted according to the appearance of the PCBA board, so that the more severe handle space design requirement is met.
In some embodiments of the present utility model, the injection molded cover 20 injection molded over the PCBA board 10 is formed from a corresponding plastic injection molding.
Specifically, a corresponding low-pressure injection mold is constructed according to the structural form of the PCBA board 10; the PCBA board 10 to be injection molded is then placed in a low pressure injection mold, and the plastic is then sealed by the low pressure injection molding apparatus, so that the mold seals the mold to replace the housing
The injection-molded coating layer 20 formed by injection molding is sealed and wrapped around the PCBA board 10. The length of the injection molded coating 20 is within 50-200mm and the width is freely variable from the width of the PCBA board 10.
Specifically, the injection molding coating layer 20 includes an upper coating portion 21, a lower coating portion 22 and a side coating portion 23, wherein the upper coating portion 21 covers the front surface of the PCBA board 10 where the wiring harness 3 and other electronic components are mounted, the lower coating portion 22 covers the back surface of the PCBA board 10, and the side coating portion 23 is located around the side surface of the PCBA board 10.
Because the wire harness 30 and other components arranged on the front face of the PCBA board 10 have a certain height, in order to well cover the front face of the PCBA board 10, the thickness of the upper coating part 21, which covers the front face of the component, of the PCBA board 10 in the injection coating layer 20 is higher than that of the lower coating part 22, and the thickness of the side coating parts 23, which cover the peripheral side faces of the PCBA board 10, is the same, so the side coating parts 23 are even in thickness.
Taking the products shown in fig. 1 and 2 as an example, after the PCBA board 10 with the thickness of 1.6mm is placed in a low-pressure injection mold to be sealed and filled with plastic to form the coated injection molding coating layer 20, the minimum thickness can be less than or equal to 3.5mm, and as the heights of the wire harness 30 and other electronic components arranged on the PCBA board 10 are less than or equal to 2mm, the heights of the wire harness 30 and other electronic components on the final PCBA board 10 can be less than or equal to 5.5mm, and the thickness of the final sensor is greatly reduced.
From the foregoing, the low pressure injection molding range can be adjusted as desired, wherein the length of the injection molding can be freely adjusted within the range of 50-200mm, and the width can also be freely adjusted according to the width of the PCBA board 10.
Further taking the products shown in fig. 1 and 2 as an example, the length of the PCBA board 10 is 101mm, the width of the PCBA board 10 is 12mm, and the side coating portion 23 coating the periphery side portion of the PCBA board 10 in the injection coating layer 20 formed by injection molding is uniform in thickness, and the thickness can be 1mm, so that after the PCBA board 10 is injection molded and sealed to form the handle sensor, the length is only 103mm, and the width is only 14mm.
In practical application, the scheme provided by the example directly coats a plastic layer (namely, injection coating layer 20) on the PCBA board 10 through a low-pressure injection mold, so that different shaping of the handle sensor can be finished through the low-pressure injection mold. The corresponding low-pressure injection mold can be customized according to different shapes according to different PCBA boards 10 or requirements, and the PCBA boards 10 are injection molded at the moment, so that the handle sensor is shaped differently.
Referring to fig. 3, with respect to the injection molding coating layer 20 coated on the PCBA board 10, the side coating portion 23 of the injection molding coating layer 20 may be expanded and injection molded with an integral buckle 40, so as to form a handle sensor with the buckle 40 integrally formed on the side surface.
Referring to fig. 4, with respect to the injection molding coating layer 20 coated on the PCBA board 10, the side coating portion 23 of the injection molding coating layer 20 can be expanded and molded with an integral spacing rib 50, so as to form a handle sensor with a spacing rib 50 integrally formed on the side surface.
Referring to fig. 5, for the injection-molded coating layer 20 coated on the PCBA board 10, an integral positioning post 60 may be expanded and injection-molded on the upper coating portion 21 and/or the lower coating portion 22 of the injection-molded coating layer 20, thereby forming a handle sensor with the positioning post 60 integrally formed on the surface.
Referring to fig. 6, for the injection molding coating layer 20 coated on the PCBA board 10, the side coating portion 23 of the injection molding coating layer 20 can be expanded and injection molded to form an integrated circular arc-shaped avoidance groove 70, so as to form a handle sensor with the avoidance groove 70 integrally formed on the side surface.
The ultrathin handle sensor scheme that this example given, abandon traditional casing and add the encapsulating structure, adopt the structure of mould low pressure injection moulding, directly wrap up one deck plastic in the outside of sensor PCBA board 10, can waterproof dustproof, can also make thickness by 8mm of original hidden handle, further reduce to below 6 mm.
The ultra-thin handle sensor scheme provided by the embodiment can flexibly design and adjust the handle style according to the appearance of the PCBA board 10, thereby meeting the more severe handle space design requirement; the handle sensor with thicker thickness can be manufactured according to the requirement, and various products can be flexibly customized according to different use environments.
The ultrathin handle sensor scheme provided by the embodiment can generate the following beneficial effects in practical application:
1. compared with the traditional glue filling design, the glue filling shell is not required to be designed, the structure is simplified, and the cost is reduced.
2. The thickness of the product is thin, and the injection molding mode can be flexibly matched and adjusted according to the modeling of the handle.
3. The cost investment is low, and the subsequent development period is greatly shortened.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an ultra-thin electric capacity door handle sensor, includes circuit board and pencil, the pencil sets up on the PCBA board, its characterized in that still includes the coating of moulding plastics, the coating of moulding plastics is cladding completely on the circuit board, the pencil stretches out in the coating of moulding plastics of cladding on the circuit board.
2. The ultra-thin capacitive door handle sensor of claim 1, wherein a single capacitor is provided on the circuit board.
3. The ultra-thin capacitive door handle sensor of claim 1, wherein the circuit board is provided with dual or multiple capacitors.
4. The ultra-thin capacitive door handle sensor of claim 1, wherein the injection molded coating is a plastic layer.
5. The ultra-thin capacitive door handle sensor of claim 1, wherein the outside of the injection molded coating over the circuit board is integrally formed with a clip.
6. The ultra-thin capacitive door handle sensor of claim 1, wherein the outer side of the injection-molded coating layer coated on the circuit board is integrally formed with a stop rib.
7. The ultra-thin capacitive door handle sensor of claim 1, wherein the outer side of the injection-molded coating layer coated on the circuit board is integrally formed with a locating post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321858662.3U CN220794263U (en) | 2023-07-14 | 2023-07-14 | Ultra-thin capacitance door handle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321858662.3U CN220794263U (en) | 2023-07-14 | 2023-07-14 | Ultra-thin capacitance door handle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220794263U true CN220794263U (en) | 2024-04-16 |
Family
ID=90636157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321858662.3U Active CN220794263U (en) | 2023-07-14 | 2023-07-14 | Ultra-thin capacitance door handle sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220794263U (en) |
-
2023
- 2023-07-14 CN CN202321858662.3U patent/CN220794263U/en active Active
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