CN218072134U - Vehicle-mounted NFC (near field communication) access module - Google Patents

Abstract

The utility model relates to a vehicle-mounted NFC access module, which is used for being installed in an external rearview mirror of an automobile and comprises an upper cover, an antenna board, a PCBA, a base and a wire harness which are sequentially arranged from top to bottom, wherein the base is a lower box body with the top in an open box body-shaped structure; the outer side part of the lower box body is sleeved with a waterproof rubber ring, and a double-layer or multi-layer wave crest structure is arranged on the waterproof rubber ring; the upper cover is an upper box body matched with the base and is arranged on the base in a covering mode; the wire harness is provided with a waterproof rubber plug which adopts soft rubber and is integrally formed with the wire harness through a secondary injection molding process; adopt the mode of fastener fastening and with on-vehicle NFC entering module holistic waterproof performance behind waterproof rubber ring and the waterproof plug cooperation more than reaching IPX7 level, compare in prior art the sealed mode cost of encapsulating lower.

Description

Vehicle-mounted NFC (near field communication) access module

Technical Field

The utility model relates to an inside electronic module of vehicle, concretely relates to on-vehicle NFC gets into module.

Background

NFC car key unblock function brings more convenient intelligent car experience for the consumer, but present on-vehicle NFC gets into the module and generally arranges in automobile rearview mirror, when the vehicle washes or runs into torrential rain weather, there is the possibility of water intake inefficacy in the product, and the narrower and small sealing of rear-view mirror inner space, there is the high temperature and high humidity condition inside, if the waterproof inefficacy of product, will lead to the circuit board to be corroded, produce the risk of inefficacy, and on-vehicle NFC entering module on the present market mainly adopts the sealed structure of encapsulating to reach waterproof purpose, this kind of encapsulating waterproof construction cost is higher, the preparation technology is complicated, it is higher to the casting glue performance requirement of selected usefulness, and can't open after the embedment, the repairability is not good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a structure is ingenious and can effective waterproof on-vehicle NFC entering module. The junction and the opening of the NFC entering module assembly are sealed by the waterproof rubber ring with the double-layer peak wave structure and the wire harness with the waterproof rubber plug, the NFC entering module can be conveniently loaded and unloaded by adopting a fastening piece fastening mode, and the product cost is lower while the sealed waterproof effect of the product IPX7 level is realized.

In order to achieve the above purpose, the following technical solutions are provided.

A vehicle-mounted NFC (near field communication) access module is used for being installed in an external rearview mirror of an automobile and comprises an upper cover, an antenna board, a PCBA (printed circuit board assembly) mainboard, a base and a wire harness which are sequentially arranged from top to bottom, and is characterized in that the base is a lower box body with an open top and a box-shaped structure, a waterproof rubber ring is sleeved at the outer side part of the lower box body, and a double-layer or multi-layer wave crest structure is arranged on the waterproof rubber ring; the upper cover is an upper box body matched with the base, and the upper cover is covered on the base; the wire harness is provided with a waterproof rubber plug, and the waterproof rubber plug is made of soft rubber and is integrally formed with the wire harness through a secondary injection molding process. Waterproof rubber ring among the prior art sets up in the upper cover and the bottom plate contact of base and extrudees, carries out waterproofly from the horizontal direction, and the junction between base and the upper cover is easy to take place to be deformed during high temperature weather, produces the warpage, and the rainwater easily gets into and contacts waterproof rubber ring from the gap and even directly enters into inside on-vehicle NFC gets into the module, and the rainwater easily enters into on-vehicle NFC gets into in the module after waterproof rubber ring became invalid. The waterproof rubber ring of the utility model is sleeved at the outer side part of the box body, namely the upper cover is covered on the base and then the waterproof rubber ring is contacted with the inner side of the side edge of the upper cover, the waterproof effect is realized from the vertical direction, the rainwater is blocked by the waterproof rubber ring in the vertical direction, the horizontal direction is blocked by the outer side part of the base, the deformation generated under the high temperature condition is not feared, and the waterproof effect is better; the waterproof rubber ring adopts a double-layer or multi-layer wave crest structure, so that the sealing performance is better and the waterproof effect is better after extrusion deformation compared with the traditional single-layer waterproof rubber ring; waterproof plug and pencil integrated into one piece can guarantee that the rainwater can not pass the gap between waterproof plug and the pencil along the pencil to in direct inflow NFC gets into the module, guarantee NFC and get into the water-proof effects of module.

Furthermore, the base comprises bottom plate and a circle of seal groove, the opening direction of seal groove with the side of upper cover is corresponding, the base of seal groove is drawn forth from the upper surface of base is vertical, makes the seal groove whole form in outside portion, waterproof rubber ring cover is established in the seal groove, crest structure protrusion in seal groove. The bottom edge of the sealing groove is vertically led out from the upper surface of the base, namely the bottom edge of the sealing groove is vertically arranged on the base, and the sealing groove can also play a certain role in preventing rainwater from entering the base after the waterproof rubber ring fails, so that a secondary waterproof function is achieved; the crest structure protrudes out of the sealing groove, so that when the upper cover is connected with the base, the crest structure is extruded and compressed, a multilayer sealing structure is formed at the joint between the base and the upper cover, and the sealing and waterproof effects in the vertical direction are ensured.

Furthermore, a wire fixing hole is formed in the bottom plate, the wire harness penetrates through the wire fixing hole from the base, and after the wire harness is connected with the PCBA main board through the first connector, a waterproof rubber plug on the wire harness is connected with the wire fixing hole in a sealing mode. Set up the solidus hole on the bottom plate and can make things convenient for the pencil to pass base and PCBA mainboard connection, will consolidate the line hole sealed simultaneously with waterproof plug, specifically, solidus hole on the bottom plate is equipped with all around and keeps off the rubber rib, and the waterproof plug assembly on the pencil is at the downthehole back of solidus, adopts the mode of gluing to put on waterproof glue in the internal region point that keeps off the rubber rib, still guarantees sealed water-proof effects when effectively guaranteeing on-vehicle NFC and getting into the normal use of module.

Furthermore, the peripheral position of waterproof plug be equipped with the round with bottom plate complex draw-in groove around the solidus hole, the draw-in groove will waterproof plug divide into the less first portion of diameter and the great second portion of diameter, one side edge that the draw-in groove was kept away from to the first portion is equipped with the chamfer. The clamping groove is arranged to enable the waterproof rubber plug to seal the wire fixing hole no matter the waterproof rubber plug penetrates through the wire fixing hole from the upper surface of the bottom plate or penetrates through the wire fixing hole from the lower surface of the bottom plate; the diameter of the first part of the waterproof rubber plug is small, a chamfer is arranged at the edge, the waterproof rubber plug can be conveniently installed in the wire fixing hole, glue can be dripped on the periphery of the waterproof rubber plug when necessary, and the sealing and waterproof effect of the vehicle-mounted NFC entering module is further guaranteed.

Further, the antenna board is fixed on a top board on the inner side of the upper cover and is connected with the PCBA main board through a second connector; the lower surface of the antenna plate is provided with a magnetic sheet, the magnetic sheet covers the lower surface of the antenna plate, and a vacancy is formed in the position, corresponding to the second connector, of the magnetic sheet. The antenna board can be fixed on the top board at the inner side of the upper cover through adhesives such as double faced adhesive tapes and the like, so that the stability of the internal structure is ensured; the second connector between the antenna board and the PCBA main board can play a role in connection and can also play a certain role in support; set up the magnetic sheet and can keep apart the magnetic field that metal material absorbed the production on the antenna board on the PCBA mainboard at the lower surface of antenna board, increase the magnetic field intensity of antenna board, effectively increase communication inductive distance, guarantee the functional effect of product.

Furthermore, a plurality of trapezoidal support columns are arranged on the base, the vertical side parts of the trapezoidal support columns are overlapped with the outer side parts, and the inclined edges of the trapezoidal support columns face the inner side of the lower box body, so that reinforcing rib structures are formed between the outer side parts and the trapezoidal support columns. Trapezoidal pillar portion and the outer side portion coincidence that sets up on the base are partial to be set up on the outer side portion promptly, form the strengthening rib structure between outer side portion and the trapezoidal pillar and can make outer side portion be difficult for by extrusion deformation, difficult production deformation during high temperature has also guaranteed the leakproofness when guaranteeing product quality intensity.

Further, be equipped with the upper cover support column in the upper cover, be equipped with a plurality of and upper cover support column complex first breach on the antenna board, be equipped with on the PCBA mainboard with upper cover support column complex second breach, the antenna board passes through upper cover support column guiding orientation and installs on the upper cover roof, the PCBA mainboard passes through upper cover support column guiding orientation and installs on the upper cover support column, trapezoidal support column on the base is pushed down the PCBA mainboard makes the PCBA mainboard quilt the mutual centre gripping of upper cover and base is fixed in the casing that comprises upper cover and base. Above-mentioned technical scheme makes the unsettled setting of PCBA mainboard between upper cover and base, and PCBA mainboard and base leave the first connector and the PCBA mainboard connection that certain space can supply the pencil promptly, and the pencil between waterproof plug and the first connector has certain length, can set up in the space between PCBA mainboard and base, makes things convenient for the staff to get into the module assembly to the NFC and disassembles the maintenance.

Furthermore, a plurality of first mounting holes are formed in the periphery of the bottom plate, second mounting holes are formed in the positions, corresponding to the first mounting holes, of the upper cover, and the base is fixedly connected with the upper cover through fasteners. The mounting hole sets up can guarantee around the bottom plate that base and upper cover are connected when fixed the difficult gap that produces of junction between upper cover and the bottom plate, still conveniently disassembles when guaranteeing the product leakproofness, with waterproof rubber ring and waterproof plug cooperation back on-vehicle NFC get into the holistic waterproof performance of module and reach more than IPX7 level, and compare in prior art the sealed mode cost of encapsulating lower.

Furthermore, two opposite side edges of the upper cover are respectively provided with a support frame, and a large mounting hole is formed in the mounting surface of each support frame; and the vehicle-mounted NFC access module is fixedly arranged on a rearview mirror bracket in the rearview mirror through the large mounting hole. On-vehicle NFC got into the module and installs on the rear-view mirror support, can make the distance between upper cover and the rear-view mirror lid nearer, the NFC card can be close to or touch the region that the rear-view mirror lid corresponds on-vehicle NFC and gets into the module, and on-vehicle NFC gets into the module and just can discern signal input to control door unblock guarantees the result of use of product when convenient loading and unloading.

Compared with the prior art, the utility model, following beneficial effect has:

first, waterproof rubber ring cover is established on the outside portion, and the outside portion can block the rainwater and get into from the horizontal direction, and waterproof rubber ring can block the rainwater and get into from vertical direction, only carries out waterproof design from the horizontal direction in comparing in prior art, and this uses neotype water-proof effects better.

Second, waterproof plug and pencil integrated into one piece, and after waterproof plug assembles to the solidus hole, make waterproof gluey line and solidus hole sealed all around through the mode of gluing, it effectively ensures waterproof plug and the sealed effect of solidus jogged joint, ensures that waterproof performance is good, and the chamfer design on its waterproof plug more makes things convenient for waterproof plug to install in the solidus hole in addition, makes things convenient for the installation of waterproof plug.

Third, adopt the mode of fastener fastening to make this NFC get into the module can be convenient disassemble the maintenance, with waterproof rubber ring and waterproof plug cooperation back on-vehicle NFC get into the holistic waterproof performance of module and reach more than IPX7 level, and compare in prior art the sealed mode cost of encapsulating lower.

The fourth, set up the magnetic sheet at the lower surface of antenna panel, but keep apart the magnetic field that metal material absorbed the production on the antenna panel on the PCBA mainboard, increase the magnetic field intensity of antenna panel, more effectively increase communication inductive distance, it is simpler to adopt the shield cover to shield mode inner structure on the PCBA mainboard in comparison in prior art, and the functional effect is better.

Drawings

Fig. 1 is an exploded view of the mechanism of a vehicle NFC entry module;

FIG. 2 is a schematic structural view of the base of FIG. 1;

fig. 3 is a cross-sectional view of a vehicle NFC entry module;

FIG. 4 is an enlarged view of portion C of FIG. 1;

FIG. 5 is an enlarged view of section D of FIG. 1;

FIG. 6 is an enlarged view of section E of FIG. 3;

FIG. 7 is another embodiment of an enlarged view of section E of FIG. 3;

FIG. 8 is a further embodiment of an enlarged view of section E of FIG. 3;

FIG. 9 is an enlarged view of portion B of FIG. 1;

FIG. 10 is an enlarged view of portion A of FIG. 1;

FIG. 11 is a schematic view of the upper cover;

fig. 12 is an assembly view of the rearview mirror cover, the onboard NFC access module, and the rearview mirror bracket.

Reference numerals:

1. an upper cover; 11. a support frame; 111. a large mounting hole; 12. an upper cover support column; 13. and (6) covering a top plate.

2. A base; 21. a lower box body; 211. an outer side portion; 212. a waterproof rubber ring; 2121. a wave crest structure; 22. a base plate; 221. a wire fixing hole; 222. a first mounting hole; 23. a sealing groove; 24. a trapezoidal support column; 25. a fastener.

3. A wire harness; 31. a waterproof rubber plug; 311. a first portion; 312. a card slot; 313. a second portion; 32. a first connector.

4. An antenna board; 41. a second connector; 42. a magnetic sheet; 43. double-sided adhesive tape; 44. a first notch.

5. PCBA mainboard; 51. a second notch.

6. An NFC card;

7. a rearview mirror cover;

8. a rearview mirror bracket.

Detailed Description

The following describes the vehicle NFC entry module in further detail with reference to specific embodiments and accompanying drawings.

As shown in fig. 1 to 4, a vehicle-mounted NFC entry module is configured to be installed in an exterior mirror of an automobile, and includes an upper cover 1, an antenna board 4, a PCBA motherboard 5, a base 2, and a wire harness 3, which are sequentially arranged from top to bottom, where the base 2 is a box-shaped structure with an open top, that is, a lower box 21, an outer side 211 of the lower box 21 is sleeved with a waterproof rubber ring 212, and the waterproof rubber ring 212 is provided with a two-layer or multi-layer wave peak structure 2121; the upper cover 1 is a box-shaped structure matched with the base 2, and the upper cover 1 is covered on the base 2; the wire harness 3 is provided with a waterproof rubber plug 31, and the waterproof rubber plug 31 is integrally formed with the wire harness 3 by adopting soft rubber and a secondary injection molding process. Waterproof rubber ring 212 among the prior art sets up in upper cover 1 and the bottom plate 22 contact and the extrusion of base 2, is waterproof from the horizontal direction, and the junction between base 2 and the upper cover 1 easily takes place deformation during high temperature weather, produces the warpage, and the rainwater easily gets into and contacts waterproof rubber ring 212 from the gap and even directly enters into inside the on-vehicle NFC gets into the module, and the rainwater easily enters into in the on-vehicle NFC gets into the module after waterproof rubber ring 212 became invalid. The waterproof rubber ring 212 of the utility model is sleeved on the outer side part 211 of the box body, namely the upper cover 1 is covered on the base 2, and then the waterproof rubber ring 212 is contacted with the inner side of the side edge of the upper cover 1, so as to prevent water from the vertical direction, rainwater is blocked by the waterproof rubber ring 212 in the vertical direction, and rainwater is blocked by the outer side part 211 of the base 2 in the horizontal direction, thus avoiding deformation under the high temperature condition and having better waterproof effect; the waterproof rubber ring 212 adopts a double-layer or multi-layer wave crest structure 2121, so that the sealing performance is better and the waterproof effect is better compared with the traditional single-layer waterproof rubber ring 212 after extrusion deformation; waterproof plug 31 and 3 integrated into one piece of pencil can guarantee that the rainwater can not pass the gap between waterproof plug 31 and the pencil 3 along pencil 3 to in direct inflow NFC got into the module, guarantee that NFC gets into the water-proof effects of module.

As shown in fig. 1 to 4, the base 2 is composed of a bottom plate 22 and a circle of sealing groove 23, an opening direction of the sealing groove 23 corresponds to a side edge of the upper cover 1, a bottom edge of the sealing groove 23 is vertically led out from an upper surface of the base 2, so that the sealing groove 23 is integrally formed into the outer side portion 211, that is, the waterproof rubber ring 212 is sleeved in the sealing groove 23, and the peak structure 2121 protrudes out of the sealing groove 23. The bottom edge of the sealing groove 23 is vertically led out from the upper surface of the base 2, namely, the bottom edge of the sealing groove 23 is vertically arranged on the base 2, and the sealing groove 23 can also play a certain role in preventing rainwater from entering the base 2 after the waterproof rubber ring 212 fails, so that a secondary waterproof function is played; the wave crest structure 2121 protrudes out of the sealing groove 23, so that when the upper cover 1 is connected with the base 2, the wave crest structure 2121 is extruded and compressed, a multi-layer sealing structure is formed at the joint between the base 2 and the upper cover 1, and the sealing and waterproof effects in the vertical direction are ensured.

As shown in fig. 2 and 3, a wire fixing hole 221 is formed in the bottom plate 22, the wire harness 3 passes through the wire fixing hole 221 from the base 2, and after being connected with the PCBA motherboard 5 through the first connector 32, the waterproof rubber plug 31 on the wire harness 3 is hermetically connected with the wire fixing hole 221. In this embodiment, the waterproof rubber plug 31 and the thread fixing hole 221 are sealed by a dispensing method after being assembled, specifically, glue blocking ribs (not shown in the figure) are arranged around the thread fixing hole 221 on the bottom plate 22, a dispensing groove is formed between adjacent glue blocking ribs, and after the waterproof rubber plug 31 on the wire harness 3 is assembled in the thread fixing hole 221, the dispensing method is adopted to dispense waterproof rubber on the inner region of the glue blocking ribs, namely the dispensing groove, so that the waterproof rubber plug 31 and the thread fixing hole 221 are sealed around. Set up the solidus hole 221 on the bottom plate 22 and can make things convenient for pencil 3 and PCBA mainboard 5 to be connected, add the point with waterproof plug 31 simultaneously and glue with solidus hole 221 sealedly, still guarantee sealed water-proof effects when guaranteeing on-vehicle NFC to get into the normal use of module.

As shown in fig. 1, 3, 5 to 7, a circle of clamping grooves 312 matched with the bottom plate 22 around the wire fixing hole 221 are formed at the peripheral position of the waterproof rubber plug 31, the clamping grooves 312 divide the waterproof rubber plug 31 into a first portion 311 with a smaller diameter and a second portion 313 with a larger diameter, and a chamfer is formed at the edge of one side of the first portion 311 away from the clamping grooves 312. The clamping groove 312 is arranged to enable the waterproof rubber plug 31 to seal the wire fixing hole 221 no matter the waterproof rubber plug passes through the wire fixing hole 221 from the upper surface of the bottom plate 22 or passes through the wire fixing hole 221 from the lower surface of the bottom plate 22; the diameter of the first part 311 of the waterproof rubber plug 31 is small, and a chamfer is arranged at the edge, so that the waterproof rubber plug 31 can be conveniently installed in the wire fixing hole 221, and glue is dripped into the glue dispensing groove on the wire fixing hole around the waterproof rubber plug 31, so that the sealing and waterproof effect of the vehicle-mounted NFC access module is further ensured.

As shown in fig. 1, fig. 3, fig. 5 and fig. 6, in a preferred embodiment, the first portion 311 with a smaller diameter of the waterproof rubber plug 31 is located at the lower portion, and the second portion 313 with a larger diameter is located at the upper portion, at this time, the wire harness 3 penetrates out of the wire fixing hole 221 from the inside of the base 2, so that the clamping groove 312 on the waterproof rubber plug 31 is assembled in the wire fixing hole 221, and the structure of the waterproof rubber plug 31 with a larger upper portion and a smaller lower portion is arranged, so that after the waterproof rubber plug 31 is assembled in the wire fixing hole 221 on the bottom plate 22 from inside to outside, the second portion 313 with a larger diameter at the upper portion is clamped on the bottom plate 22 around the wire fixing hole 221, and is not easy to fall off, thereby the waterproof rubber plug 31 is stably installed.

As shown in fig. 7, in a preferred embodiment, the first portion 311 with a smaller diameter of the waterproof rubber plug 31 is located at the upper portion, and the second portion 313 with a larger diameter is located at the lower portion, at this time, the wire harness 3 passes through the wire fixing hole 221 from the outside of the base 2 to the inside, so that the wire harness 3 passes through the base 2, specifically, the waterproof rubber plug 31 passes through the wire fixing hole 221 from the bottom surface of the bottom plate 22 to the inside, and the clamping groove 312 is fastened to the bottom plate 22 around the wire fixing hole 221, and the waterproof rubber plug 31 with a smaller upper portion and a larger lower portion is configured to be assembled in the wire fixing hole 221 on the bottom plate 22 from the outside, which is more convenient for the installation of the waterproof rubber plug 31, and after the installation, the glue is dropped into the glue dispensing groove on the wire fixing hole around the clamping groove 312 to prevent the waterproof rubber plug 31 from breaking loose from the wire fixing hole 221 after the wire harness 3 is pulled by an external force.

As shown in fig. 8, in another embodiment, the positions of the waterproof rubber plug 31 at the upper part and the lower part of the clamping groove 312 are the same, at this time, the wiring harness 3 can penetrate through the wire fixing hole 221 from the inside of the base 2 to the outside, and also can penetrate through the wire fixing hole 221 from the outside of the base 2 to the inside of the base 2, so that the wiring harness 3 can be installed more conveniently and flexibly, and further can be conveniently buckled on the bottom plate 22 around the wire fixing hole 221 through the clamping groove 312.

As shown in fig. 1 and 3, the antenna board 4 is fixed on the top plate inside the upper cover 1, and the antenna board 4 is connected to the PCBA main board 5 through a second connector 41; a magnetic sheet 42 is arranged on the lower surface of the antenna plate 4, the magnetic sheet 42 covers the lower surface of the antenna plate 4, and a vacant position is arranged at the position, corresponding to the second connector 41, of the magnetic sheet 42. The antenna plate 4 can be fixed on the top plate at the inner side of the upper cover 1 by an adhesive such as a double-sided adhesive tape 43, so that the stability of the internal structure is ensured; the second connector 41 between the antenna board 4 and the PCBA mainboard 5 can play a role in connection and also play a certain role in support; set up magnetic sheet 42 and can keep apart the magnetic field that metal material absorbed antenna board 4 and produced on PCBA mainboard 5 at the lower surface of antenna board 4, increase antenna board 4's magnetic field intensity, effectively increase communication induction distance, guarantee the functional effect of product.

As shown in fig. 2 and 3, a plurality of trapezoidal support columns 24 are disposed on the base 2, vertical side portions of the trapezoidal support columns 24 are overlapped with the outer side portions 211, and inclined sides of the trapezoidal support columns 24 face the inner side of the lower box 21, so that a reinforcing rib structure is formed between the outer side portions 211 and the trapezoidal support columns 24. Trapezoidal support column 24 part that sets up on base 2 overlaps with outside portion 211 and partly sets up on outside portion 211 promptly, forms the strengthening rib structure between outside portion 211 and the trapezoidal support column 24 and can make outside portion 211 be difficult for by the extrusion deformation, is difficult for producing deformation during high temperature, has also guaranteed the leakproofness when guaranteeing product quality intensity.

As shown in fig. 1, fig. 2, fig. 3, and fig. 9 to fig. 11, an upper cover supporting column 12 is provided in the upper cover 1, a plurality of first notches 44 matched with the upper cover supporting column 12 are provided on the antenna board 4, a second notch 51 matched with the upper cover supporting column 12 is provided on the PCBA mainboard 5, the antenna board 4 is installed on the upper cover top board 13 through the upper cover supporting column 12 in a guiding and positioning manner, the PCBA mainboard is installed on the upper cover supporting column 12 through the upper cover supporting column 12 in a guiding and positioning manner, the PCBA mainboard 5 is pressed by the trapezoid supporting column 24 on the base 2, so that the PCBA mainboard 5 is mutually clamped and fixed by the upper cover 1 and the base 2 in the casing formed by the upper cover 1 and the base 2. Above-mentioned technical scheme makes the unsettled setting of PCBA mainboard 5 between upper cover 1 and base 2, and PCBA mainboard 5 leaves certain space with base 2 promptly and can supply the first connector 2 and the PCBA mainboard 5 of pencil 3 to be connected, and pencil 3 between waterproof plug 31 and the first connector 32 has certain length, can set up in the space between PCBA mainboard 5 and base 2, makes things convenient for the staff to get into the module assembly to NFC and disassembles the maintenance.

As shown in fig. 1 and 2, a plurality of first mounting holes 222 are formed around the bottom plate 22, a second mounting hole is formed in a position of the upper cover 1 corresponding to the first mounting hole 222, and the base 2 is fixedly connected to the upper cover 1 through a fastener 25. The mounting hole sets up can guarantee around bottom plate 22 that base 2 and upper cover 1 are connected when fixed the difficult gap that produces of junction between upper cover 1 and the bottom plate 22, still conveniently disassembles when guaranteeing the product leakproofness, with waterproof rubber ring 212 and waterproof plug 31 cooperation back on-vehicle NFC get into the holistic waterproof performance of module and reach more than IPX7 level, and compare in prior art in the sealed mode cost of encapsulating lower.

As shown in fig. 11 and 12, two opposite side edges of the upper cover 1 are respectively provided with a support frame 11, and a large mounting hole 111 is formed on a mounting surface of the support frame 11; the vehicle-mounted NFC access module is mounted and fixed on the rearview mirror bracket 8 inside the rearview mirror through the large mounting hole 111. On-vehicle NFC gets into the module and installs on rear-view mirror support 8, can make the distance between upper cover 1 and the rear-view mirror lid 7 nearer, NFC card 6 can be close to or touch the region that rear-view mirror lid 7 corresponds on-vehicle NFC entering module, and on-vehicle NFC gets into the module and just can discern signal input to control the door unblock, guarantee the result of use of product when conveniently loading and unloading.

In the description of the present invention, it is to be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the 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 invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above embodiments are only specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that various changes and modifications as would be obvious to one having the ordinary skill in this art may be made without departing from the spirit and scope of the invention, and such obvious alternatives are intended to be included within the scope of the invention.

Claims (9)

1. A vehicle-mounted NFC access module is used for being installed in an external rearview mirror of an automobile and comprises an upper cover, an antenna board, a PCBA main board, a base and a wire harness, wherein the upper cover, the antenna board, the PCBA main board, the base and the wire harness are sequentially arranged from top to bottom; the outer side part of the lower box body is sleeved with a waterproof rubber ring, and a double-layer or multi-layer wave crest structure is arranged on the waterproof rubber ring; the upper cover is an upper box body matched with the base, and the upper cover is covered on the base; the wire harness is provided with a waterproof rubber plug, and the waterproof rubber plug is made of soft rubber and is integrally formed with the wire harness through a secondary injection molding process.

2. The vehicle-mounted NFC access module according to claim 1, wherein the base is composed of a bottom plate and a circle of sealing groove, the opening direction of the sealing groove corresponds to the side edge of the upper cover, the bottom edge of the sealing groove is vertically led out from the upper surface of the base, so that the sealing groove is integrally formed in the outer side portion, the waterproof rubber ring is sleeved in the sealing groove, and the wave crest structure protrudes out of the sealing groove.

3. The vehicle-mounted NFC access module according to claim 2, wherein a wire fixing hole is formed in the bottom plate, the wire harness passes through the wire fixing hole from the base, and after the wire harness is connected with the PCBA main board through the first connector, a waterproof rubber plug on the wire harness is connected with the wire fixing hole in a sealing mode.

4. The vehicle-mounted NFC access module according to claim 3, wherein a circle of clamping grooves matched with the bottom plate around the wire fixing hole is formed in the periphery of the waterproof rubber plug, the clamping grooves divide the waterproof rubber plug into a first portion with a smaller diameter and a second portion with a larger diameter, and a chamfer is formed in the edge of one side, away from the clamping grooves, of the first portion.

5. The on-board NFC entry module of claim 1, wherein the antenna board is secured to a top panel inside the upper cover, the antenna board being connected to the PCBA motherboard by a second connector; the lower surface of the antenna plate is provided with a magnetic sheet, the magnetic sheet covers the lower surface of the antenna plate, and a vacancy is formed in the position, corresponding to the second connector, of the magnetic sheet.

6. The vehicle-mounted NFC access module according to claim 1, wherein a plurality of trapezoidal support pillars are provided on the base, vertical side portions of the trapezoidal support pillars coincide with the outer side portions, and oblique sides of the trapezoidal support pillars face the inner side of the lower case, so that a reinforcing rib structure is formed between the outer side portions and the trapezoidal support pillars.

7. The vehicle-mounted NFC access module according to claim 6, wherein an upper cover supporting column is arranged in the upper cover, a plurality of first notches matched with the upper cover supporting column are arranged on the antenna board, a second notch matched with the upper cover supporting column is arranged on the PCBA main board, the antenna board is installed on the upper cover top board through the upper cover supporting column in a guiding and positioning mode, the PCBA main board is installed on the upper cover supporting column through the upper cover supporting column in a guiding and positioning mode, and the PCBA main board is pressed by the trapezoidal supporting column on the base, so that the PCBA main board is mutually clamped and fixed in a shell formed by the upper cover and the base.

8. The vehicle-mounted NFC access module of claim 2, wherein a plurality of first mounting holes are formed around the bottom plate, second mounting holes are formed in positions of the upper cover corresponding to the first mounting holes, and the base is fixedly connected with the upper cover through fasteners.

9. The vehicle-mounted NFC access module according to claim 1, wherein two opposite sides of the upper cover are respectively provided with a support frame, and a large mounting hole is formed in a mounting surface of each support frame; and the vehicle-mounted NFC access module is fixedly arranged on a rearview mirror bracket in the rearview mirror through the large mounting hole.

Images