CN207977452U - A kind of host box - Google Patents
A kind of host box Download PDFInfo
- Publication number
- CN207977452U CN207977452U CN201820224766.1U CN201820224766U CN207977452U CN 207977452 U CN207977452 U CN 207977452U CN 201820224766 U CN201820224766 U CN 201820224766U CN 207977452 U CN207977452 U CN 207977452U
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- Prior art keywords
- opening
- antenna
- dual
- mode antenna
- pcb board
- Prior art date
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- Expired - Fee Related
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- 239000002184 metal Substances 0.000 claims abstract description 41
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a kind of host box, including：Metal box, the metal box include cover board, bottom plate and side wall；Pcb board, the pcb board are arranged in the metal box；The lateral edges on the pcb board are arranged in dual-mode antenna, the dual-mode antenna, and the dual-mode antenna is electrically connected with the pcb board；Wherein, the bottom plate is equipped with the first opening, and first opening covers drop shadow spread of the dual-mode antenna on the bottom plate, and the side wall is equipped with the second opening, and second opening covers drop shadow spread of the dual-mode antenna on the side wall.After adopting the above technical scheme, dual-mode antenna wraps up for metal box, product size effective protection dual-mode antenna simultaneously is not increased；The gain of dual-mode antenna is not influenced by metal box.
Description
Technical field
The utility model is related to communication field more particularly to a kind of host boxes.
Background technology
When antenna is in metal shell, the protection of metal shell had not only been needed, but also has been not intended to antenna by metal shell
Screening effect.
For the antenna box with metal shell, in order to enable antenna is not shielded by metal shell, existing antenna box has
The mode of three kinds of setting antennas：
1) part except metal shell there are one protrusion is set on the pcb board in antenna box, and antenna is arranged in the portion
Divide on pcb board, and a plastics clamshell is set to protect antenna on the part pcb board, this kind of technical solution can cause to produce
Product larger, difficult to install, protrusion part is easily damaged when by brute force attack, needs better safeguard measure；
2) there are one antenna is arranged on the edge of pcb board, the side wall of metal shell at the position of respective antenna and opens up
The strip perforation groove being vertically arranged, metal shell is almost fully wrapped around to antenna, can substantially weaken antenna gain ability, from
And shorten antenna propagation distance, influence user experience, this technical solution is difficult to meet user to antenna propagation distance increasingly
The demand of growth；
3) there are one antenna is arranged on the edge of pcb board, the side wall of metal shell at the position of respective antenna and opens up
Rectangular opening, and one plastic dam is set to protect antenna, effect to be similar to 2) scheme in the opening.
Therefore, it is necessary to a kind of technical solutions, while not increasing product size, make antenna dry to avoid surrounding metal
It disturbs and preferably receives signal.
Utility model content
In order to overcome above-mentioned technological deficiency, the purpose of this utility model is to provide a kind of host boxes, by host box
Side wall and bottom correspond to installation antenna position setting opening so that antenna can to avoid surrounding metal interfere and preferably connect
By signal.
The utility model discloses a kind of host boxes, including：Metal box, the metal box include cover board, bottom plate and side wall；
Pcb board, the pcb board are arranged in the metal box；The side on the pcb board is arranged in dual-mode antenna, the dual-mode antenna
Edge, the dual-mode antenna are electrically connected with the pcb board；Wherein, the bottom plate is equipped with the first opening, and first opening is covered
Drop shadow spread of the dual-mode antenna on the bottom plate is covered, the side wall is equipped with the second opening, the second opening covering
Drop shadow spread of the dual-mode antenna on the side wall.
Preferably, first opening covers the upright projection range of the dual-mode antenna on the bottom plate, and described the
Two openings cover upright projection range of the dual-mode antenna on the side wall.
Preferably, the dual-mode antenna is an inverse-F antenna.
Preferably, the outermost in the pcb board is arranged in the long side of the inverse-F antenna.
Preferably, vertical range of the inverse-F antenna apart from the top of second opening is more than connecing for the inverse-F antenna
Ground height.
Preferably, vertical range of the short circuit grounding point apart from the side wall on the inverse-F antenna is less than in same direction
The bore of first opening.
Preferably, first opening, the second opening are respectively connected with protection board, for protecting the dual-mode antenna.
Preferably, the protection board is made of plastics.
Preferably, first opening is overlapped with second opening portion constitutes folding shape opening.
After using above-mentioned technical proposal, compared with prior art, have the advantages that：
1. dual-mode antenna wraps up for metal box, product size effective protection dual-mode antenna simultaneously is not increased；
2. the gain of dual-mode antenna is not influenced by metal box.
Description of the drawings
Fig. 1 shows the three dimensional structure diagram for meeting the embodiments of the present invention；
Fig. 2 shows the structural schematic diagrams of the dual-mode antenna met in the embodiments of the present invention.
Reference numeral：
1- cover boards, 2- bottom plates, 3- side walls, 4-PCB plates, 5- dual-mode antennas, 6- protection boards, the openings of 7- first, 8- second are opened
Mouthful.
Specific implementation mode
The advantages of the utility model is expanded on further below in conjunction with attached drawing and specific embodiment.
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
It is the purpose only merely for description specific embodiment in the term that the disclosure uses, is not intended to be limiting the disclosure.
The "an" of singulative used in disclosure and the accompanying claims book, " described " and "the" are also intended to including majority
Form, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refers to and wraps
Containing one or more associated list items purposes, any or all may be combined.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the disclosure
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, not departing from
In the case of disclosure range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indicates or imply
Signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this
The limitation of utility model.
In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, can also be the company inside two elements
It is logical, it can be directly connected, can also indirectly connected through an intermediary, for the ordinary skill in the art, it can
To understand the concrete meaning of above-mentioned term as the case may be.
In subsequent description, using for indicating that the suffix of such as " module ", " component " or " unit " of element is only
Be conducive to the explanation of the utility model, itself there is no specific meanings.Therefore, " module " can be mixedly with " component "
It uses.
A kind of host box, including：
Metal box
Metal box includes cover board 1, bottom plate 2 and side wall 3, using metal box as outer outlet body so that the host can cope with
Strong mechanical shock, metal box can be provided very reliable protection with internal volume, adapt to most severe external working environments,
Such as the judder environment on automobile.
Pcb board
Pcb board 4 is arranged in metal box, to electronic working device and operating circuit that integrated host needs, pcb board
4 can be fixed on metal box inner space by modes such as welding, screwings.
Dual-mode antenna
The lateral edges on pcb board 4 are arranged in dual-mode antenna 5, and dual-mode antenna 5 is electrically connected with pcb board 4.Dual-mode antenna 5 is in thin
Sheet is sticked on pcb board 4, and dual-mode antenna 5 is mounted on the outer edge of PCB as possible so that dual-mode antenna 5 is as possible not
By the metal material of electronic component is influenced from pcb board 4 and thereon, to improve the gain of dual-mode antenna 5 as far as possible.
Wherein, bottom plate 2 is equipped with the first opening 7, and the first opening 7 covers the drop shadow spread of dual-mode antenna 5 on a base plate 2,
Side wall 3 is equipped with the second opening 8, drop shadow spread of the 8 covering dual-mode antenna 5 of the second opening on side wall 3.First opening 7, second
The presence of opening 8 allows the signal of dual-mode antenna 5 to pass through metal box, without being influenced by metal box.
The upright projection range of first opening, 7 covering dual-mode antenna 5 on a base plate 2,8 covering dual-mode antenna 5 of the second opening
Upright projection range on side wall 3.In this way, first opening the 7, second opening 8 face dual-mode antennas 5 setting, more preferable ensure are received
Send out the gain of antenna 5.
Dual-mode antenna 5 is an inverse-F antenna.Inverse-F antenna is to add an inverted L structure in vertical first end of inverted l antenna abc
Edb is constituted.It adjusts the matching of antenna and feeding coaxial lines using additional edb structures.The antenna has low profile structure,
Radiation field has horizontal and vertical two kinds polarization, and additionally, due to compact-sized and with equal directions radiation characteristic, while its is good
Good grounding design can effectively improve the working efficiency of antenna.It is typical inverted F shaped antenna structure chart, the antenna shown in Fig. 1
It can be regarded as e terminal shortcircuits, the resonator of the ends a open circuit, so, a terminal voltages are maximum, and electric current zero, e terminal voltages are zero, electric current
It is maximum.Due to containing the metal covering of ground connection in the structure of inverse-F antenna, can reduce in radio-frequency module grounding metal plane it is quick
Sensitivity, therefore it is highly suitable for system on chip.In addition, since inverse-F antenna need to only utilize metallic conductor to coordinate feeder line appropriate
Antenna short circuit end is adjusted to the position of ground plane, thus cost of manufacture is relatively low, directly can be welded on one with PCB circuit board
It rises.
The outermost in pcb board 4 is arranged in the long side of inverse-F antenna.The long side of inverse-F antenna be used for receiving and transmitting signal, therefore by its
It is arranged along the outermost of pcb board 4, the distance of 7, second opening 8 of the opening of inverse-F antenna distance first is nearest, by from metal
The interference of box and pcb board 4 is also minimum so that the signal transmitting and receiving ability of inverse-F antenna is most strong.
Further, in order to enable inverse-F antenna has better signal transmitting and receiving ability, in the dimensional structure setting of antenna
Following condition should also be met：The vertical range at the top of the opening of inverse-F antenna distance second 8 is more than the ground connection height of inverse-F antenna,
Vertical range of the short circuit grounding point apart from side wall 3 on inverse-F antenna is less than the bore of the first opening 7 in same direction.
Extraneous dust, water etc. are entered by first the 7, second opening of opening 8 inside metal case in order to prevent, keep metal
The leakproofness of box entirety is respectively connected with protection board 6 to reinforce the protection of metal box at first the 7, second opening 8 of opening,
For protecting dual-mode antenna 5.Protection board 6 is made of plastics, because plastics will not absorb electromagnetic signal, is increased to antenna to reduce
The influence of benefit.
In another optional or preferred embodiment, the first opening 7 and the second opening 8 partially overlap and constitute a folding
Shape is open.Refer to, the first opening 7 crosses at metal box seamed edge with the second opening 8, and it is in " L " to constitute a cross section
The opening of shape is different under normal circumstances, the 8 independent side wall 3 and bottom plate 2 for being in metal box of the first opening 7 and the second opening
On.The opening of this folding shape has the transmitting-receiving so that opening because the seamed edge of metal box does not influence passing through for electromagnetic wave
Antenna 5 has preferable gain.
Following table compares the mode for the three kinds of setting antennas handed in non-housing antenna, background technology and uses above-mentioned reality
Apply the performance parameter of the antenna of technical solution in example, it can be seen that using the technical solution in above-described embodiment in addition to the prior art
Scheme 1), antenna effects closest to non-housing antenna, while again be not present prior art 1) in cause product size to become
Big drawback.
In order to obtain better antenna effects, referring to Fig.2, the dimensional structure of dual-mode antenna should meet W2>W1, L2>L1,
H2>Tri- conditions of H1.
It should be noted that the embodiments of the present invention have preferable implementation, and not the utility model is appointed
The limitation of what form, any one skilled in the art change or are modified to possibly also with the technology contents of the disclosure above
Same effective embodiment, as long as without departing from the content of technical solutions of the utility model, according to the technical essence of the utility model pair
Any modification or equivalent variations and modification, are still within the scope of the technical solutions of the present invention made by above example.
Claims (9)
1. a kind of host box, which is characterized in that including：
Metal box, the metal box include cover board, bottom plate and side wall；
Pcb board, the pcb board are arranged in the metal box；
The lateral edges on the pcb board, the dual-mode antenna and pcb board electricity is arranged in dual-mode antenna, the dual-mode antenna
Connection；
Wherein, the bottom plate is equipped with the first opening, and first opening covers throwing of the dual-mode antenna on the bottom plate
Shadow range, the side wall are equipped with the second opening, and second opening covers projection of the dual-mode antenna on the side wall
Range.
2. host box as described in claim 1, which is characterized in that
First opening covers upright projection range of the dual-mode antenna on the bottom plate, the second opening covering institute
State upright projection range of the dual-mode antenna on the side wall.
3. host box as claimed in claim 2, which is characterized in that
The dual-mode antenna is an inverse-F antenna.
4. host box as claimed in claim 3, which is characterized in that
The outermost in the pcb board is arranged in the long side of the inverse-F antenna.
5. host box as claimed in claim 4, which is characterized in that
Vertical range of the inverse-F antenna apart from the top of second opening is more than the ground connection height of the inverse-F antenna.
6. host box as claimed in claim 5, which is characterized in that
Vertical range of the short circuit grounding point apart from the side wall on the inverse-F antenna is less than first opening in same direction
Bore.
7. the host box as described in claim 1-6 is any, which is characterized in that
First opening, the second opening are respectively connected with protection board, for protecting the dual-mode antenna.
8. host box as claimed in claim 7, which is characterized in that
The protection board is made of plastics.
9. the host box as described in claim 1-6 is any, which is characterized in that
First opening is overlapped with second opening portion constitutes folding shape opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224766.1U CN207977452U (en) | 2018-02-08 | 2018-02-08 | A kind of host box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820224766.1U CN207977452U (en) | 2018-02-08 | 2018-02-08 | A kind of host box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207977452U true CN207977452U (en) | 2018-10-16 |
Family
ID=63767096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820224766.1U Expired - Fee Related CN207977452U (en) | 2018-02-08 | 2018-02-08 | A kind of host box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207977452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114724417A (en) * | 2022-02-24 | 2022-07-08 | 江苏经贸职业技术学院 | Multifunctional learning-aid system |
-
2018
- 2018-02-08 CN CN201820224766.1U patent/CN207977452U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114724417A (en) * | 2022-02-24 | 2022-07-08 | 江苏经贸职业技术学院 | Multifunctional learning-aid system |
| CN114724417B (en) * | 2022-02-24 | 2023-07-18 | 江苏经贸职业技术学院 | Multifunctional learning-aid system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181016 |