CN203575005U - Shielding cover and Zigbee signal receiver employing same - Google Patents
Shielding cover and Zigbee signal receiver employing same Download PDFInfo
- Publication number
- CN203575005U CN203575005U CN201320741975.0U CN201320741975U CN203575005U CN 203575005 U CN203575005 U CN 203575005U CN 201320741975 U CN201320741975 U CN 201320741975U CN 203575005 U CN203575005 U CN 203575005U
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- housing
- screening cover
- signal receiver
- shielding
- radome
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- 239000000463 material Substances 0.000 claims abstract description 16
- 238000012216 screening Methods 0.000 claims description 69
- 229910052755 nonmetal Inorganic materials 0.000 claims description 16
- 238000004880 explosion Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 12
- 230000003292 diminished effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000002238 attenuated effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
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Abstract
The utility model discloses a shielding cover and a Zigbee signal receiver employing the same. The shielding cover comprise a shielding sleeve extending in the horizontal direction and a rear shielding cover correspondingly arranged at the rear end of the shielding sleeve, a receiving antenna is arranged in the shielding sleeve, a receiving terminal of the receiving antenna is arranged towards the front end of the shielding sleeve, the front end of the shielding sleeve is provided with a front shielding cover, and the attenuation shielding performance of the metal shielding material which makes the front shielding cover is poorer than the attenuation shielding performance of the metal shielding material which makes the shielding sleeve and the rear shielding cover. According to the Zigbee signal receiver, one side which the receiving antenna faces to is provided with a shielding structure so that surrounding signals are attenuated, since the attenuation shielding ability of the shielding sleeve and the rear shielding cover on the signals is greater than the attenuation shielding ability of the front shielding cover on the signals, the difference between the intensity of the signals at the front end which the receiving terminal of the receiving antenna faces to and the intensity of the surrounding signals is obvious, the signals from the front end differ from the surrounding signals, and the sensitivity of the signal receiver can be improved.
Description
Technical field
The utility model relates to a kind of radome and uses the Zigbee signal receiver of this radome.
Background technology
Zigbee be a kind of emerging closely, low-power consumption, low data rate, two-way communication technology cheaply, it is a kind of communication technology between radio mark technology and Bluetooth technology.The relatively existing various communication technologys, power consumption and the cost of Zigbee are minimum, are therefore widely used ZigBee technology and realize the detection and localization to equipment.
In the Chinese utility model patent that is CN202256661U at Granted publication number, disclosing one utilizes Zigbee wireless location technology to carry out pinpoint navigation system to pit gear, comprise one group of fixing Zigbee wireless module of corresponding matching use and the Zigbee wireless module of a movement, can be by fixing Zigbee wireless module as reflector or receiver, corresponding, using mobile Zigbee wireless module as receiver or reflector, each fixing Zigbee wireless module and mobile Zigbee wireless module form a communication network based on Zigbee wireless location, mobile Zigbee wireless module sends or accepts data in traveling process, and each fixing Zigbee wireless module is for accepting or transmitted data signal, by correspondence, as the Zigbee wireless module of receiver, the signal strength signal intensity of the data that receive is passed to follow-up main frame processes simultaneously, and then the accurate location of realization to equipment.
Zigbee signal receiver in above-mentioned Zigbee wireless module is provided with shielding case, shielding case comprises the housing of both ends open and is arranged at the screening cover of housing one end, housing and screening cover are made by metal shield materials, at the other end of housing, be provided with nonmetal end cap, in housing, be installed with reception antenna, the receiving terminal of reception antenna, towards nonmetal cover plate direction, is provided with wire hole on screening cover, in the outside of screening cover, in wire hole place, is provided with tubulose lead collar.When this Zigbee signal receiver is applied to complex environment or be applied in equipment room that reflector is installed apart from hour, because a side of nonmetal end cap is not obvious to the decay of signal, the interference that is subject to surrounding signal towards the reception antenna of nonmetal end cap is comparatively strong, cause easily occurring flase drop, positioning precision is low.
Utility model content
The purpose of this utility model is to provide a kind of radome, with solve the shielding construction on Zigbee signal receiver in prior art reception antenna towards a side to the unconspicuous technical problem of surrounding signal attenuation; Meanwhile, also to provide a kind of be Zigbee signal receiver with above-mentioned radome to the utility model.
For achieving the above object, the technical scheme of radome provided by the utility model is: a kind of radome, comprise the housing and the corresponding rear screening cover that is arranged at housing rear end that along fore-and-aft direction, extend, the front end of described radome is provided with front screening cover, and the decay shielding properties of making the metallic shield material of front screening cover is less than the decay shielding properties of the metallic shield material of making described housing and rear screening cover.
The trailing flank corresponding position of described front screening cover is provided with blind hole, and blind hole is the taper hole structure being diminished gradually by backward front aperture.
Described front radome is mesh shields layer.
The technical scheme of Zigbee signal receiver provided by the utility model is: a kind of Zigbee signal receiver, comprise radome, radome comprises the housing and the corresponding rear screening cover that is arranged at housing rear end that along fore-and-aft direction, extend, in housing, be provided with the reception antenna of receiving terminal towards housing front end, the front end of described housing is provided with front screening cover, and the decay shielding properties of making the metallic shield material of front screening cover is less than the decay shielding properties of the metallic shield material of making described housing and rear screening cover.
On the trailing flank of described front screening cover, be provided with blind hole with the receiving terminal corresponding position of described reception antenna, blind hole is the taper hole structure being diminished gradually by backward front aperture.
Described signal receiver comprise be around in housing week laterally along fore-and-aft direction extend flame proof sleeve, the front opening place of flame proof sleeve is installed with the nonmetal front end housing towards the receiving terminal of described reception antenna, nonmetal end cap has the trailing flank with front screening cover front end top interference fit, top pressure side lid after the open rearward end place of flame proof sleeve is installed with, rear top pressure side lid has the leading flank with the top interference fit of rear screening cover rear end, and nonmetal front end housing and rear top pressure side lid are equipped with on fore-and-aft direction housing and forward and backward screening cover clamping position.
Described front screening cover is the mesh shields layer being arranged between described housing and nonmetal front shroud.
Described mesh shields layer is by backward front radial dimension and becomes gradually large frustum cone structure, the sleeve sections corresponding with described mesh shields layer of described flame proof sleeve has and the described mesh shields layer profile that is frustum cone structure coincide corresponding taper hole.
On described rear top pressure side lid and rear screening cover, offer respectively the corresponding wire hole connecting, in wire hole, correspondence is fitted with outlet shielded-plate tube, at outlet shielded-plate tube, be set with outward and the fixing anti-explosion cable seat assembling of described rear top pressure side lid, between anti-explosion cable seat and rear top pressure side lid, be provided with sealing ring.
The front end of described anti-explosion cable seat has the flange terminal pad being connected by trip bolt and rear top pressure side lid, on the rear end face of anti-explosion cable seat, offer thrust cascaded surface rear shoulder hole backwards, described outlet shielded-plate tube is set in described rear shoulder hole, in rear shoulder hole in outlet shielded-plate tube week laterally sealing shroud sealing shroud is housed, the front end of sealing shroud coordinates with described thrust cascaded surface block, its rear end and spiral rotary pack the clamp sleeve top interference fit in rear shoulder hole into.
Usefulness of the present utility model is: radome provided by the utility model and using in the Zigbee signal receiver of this radome, not only be provided with housing and rear screening cover, the receiving terminal of reception antenna towards front end be provided with equally before screening cover, like this, reception antenna towards a side shielding construction is equally also set, so that surrounding signal is decayed, and because housing and rear screening cover are greater than the decay screening ability of front screening cover to signal to the decay screening ability of signal, make reception antenna receiving terminal towards the signal of front end and the difference of surrounding signal strength signal intensity comparatively obvious, make from the signal of front end with from the signal difference alienation of surrounding, be convenient to improve the sensitivity of signal receiver.
Further, on the trailing flank of front screening cover, be provided with the blind hole that is taper hole structure, signal be concentrated to the receiving terminal of reception antenna, be convenient to improve in set of signals the detected intensity of signal receiver.
Further, at housing, esplosion isolating cover cylinder is set outward, can realizes like this flame proof ability of signal receiver, make the applicable flame proof of sort signal receiver have the place of requirement.
Further, front screening cover is mesh shields layer, in the actual production process of signal receiver, can choose at random according to actual needs thickness and the size of mesh shields layer, and Production design cost is lower.
Further, mesh shields layer adopts frustum cone structure, and the sleeve sections corresponding with described mesh shields layer of flame proof sleeve has taper hole, when mesh shields layer is packed in flame proof sleeve, in mesh shields layer being carried out by taper hole, carry out the location on circumferential and axial, improve assembly precision and efficiency of assembling.
Further, on outlet shielded-plate tube, be set with anti-explosion cable seat, and this anti-explosion cable seat is connected in rear top pressure side and covers, can improve so the explosion-proof ability of whole signal receiver, simultaneously, adopt outlet shielded-plate tube, can play shielding action, avoid the problem that need to cause shielding to lose efficacy due to outlet.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides a kind of embodiment of Zigbee signal receiver;
Fig. 2 is the fundamental diagram (moving direction, hollow arrow that filled arrows is depicted as Zigbee signal receiver represent that signal projector is to Zigbee signal receiver reflected signal) using when Zigbee signal receiver is accurately located as shown in Figure 1.
Embodiment
As shown in Figure 1, a kind of embodiment of Zigbee signal receiver, signal receiver in this embodiment comprises radome, radome comprises the housing 61 extending along fore-and-aft direction, in housing 61, be provided with the reception antenna 7 of receiving terminal towards housing front end, screening cover 62 after the rear end of housing 61 is provided with, its front end is provided with front screening cover 63, and the decay shielding properties of making the metallic shield material of front screening cover 63 is herein less than the decay shielding properties of the metallic shield material of making described housing 61 and rear screening cover 62, to make housing 61 and rear screening cover 62 be greater than the decay screening ability of front screening cover 63 to signal to the decay screening ability of signal, and be provided with blind hole 630 with the receiving terminal corresponding position of described reception antenna 7 on the trailing flank of this front screening cover 63, blind hole 630 is the taper hole structure being diminished gradually by backward front aperture.
In the present embodiment, for improving the requirement of explosion proof of signal receiver, signal receiver herein also comprises and is around in the housing 61 weeks flame proof sleeve 8 extending along fore-and-aft direction laterally, the front opening place of flame proof sleeve 8 is installed with the nonmetal front end housing 10 towards the receiving terminal of described reception antenna 7, nonmetal end cap 10 has the trailing flank with front screening cover 63 front end top interference fits, top pressure side lid 5 after the open rearward end place of flame proof sleeve 8 is installed with, rear top pressure side lid 5 has the leading flank with rear screening cover 62 top, rear end interference fits, nonmetal front end housing 10 is equipped with on fore-and-aft direction housing 61 and front screening cover 63 with rear top pressure side lid 5, the clamping position of rear screening cover 62.Front screening cover 63 is herein for being arranged in the mesh shields layer between described housing 62 and nonmetal front shroud 10.And this mesh shields layer is by backward front radial dimension and becomes gradually large frustum cone structure, and the sleeve sections corresponding with described mesh shields layer of flame proof sleeve 8 is the mesh shields layer profile of the frustum cone structure corresponding taper hole that coincide described in having.
In the present embodiment, for ease of holding wire is drawn, on rear top pressure side lid 8 and rear screening cover 62, offer the corresponding wire hole connecting, in wire hole, correspondence is fitted with outlet shielded-plate tube 1, outside outlet shielded-plate tube 1, be set with by the anti-explosion cable seat 3 of trip bolt and the 5 fixing assemblings of described rear top pressure side lid, between anti-explosion cable seat 3 and rear top pressure side lid 5, be provided with sealing ring 4.The front end of anti-explosion cable seat 3 herein has the flange terminal pad 31 being connected by trip bolt and rear top pressure side lid, on the rear end face of anti-explosion cable seat 3, offer thrust cascaded surface rear shoulder hole 32 backwards, described outlet shielded-plate tube 1 is set in described rear shoulder hole 32, in rear shoulder hole 32 in outlet shielded-plate tube 1 week laterally sealing shroud sealing shroud 11 is housed, the front end of sealing shroud 11 coordinates with described thrust cascaded surface block, its rear end and spiral rotary pack the clamp sleeve 2 top interference fits in rear shoulder hole 32 into.
As shown in Figure 2, state in the use Zigbee signal receiver work that embodiment provides so that equipment is positioned, by the multiple reflectors 100 that are disposed on straight line, send signal data, and in moving process, receive data-signal by the Zigbee signal receiver moving, because due to housing and front, the effect of rear screening cover, weakened many of signal strength signal intensity that surrounding receives, and weakened the lacking of signal receiving from leading section, like this, the strength difference of the signal of front end and the signal of surrounding is comparatively obvious, the receiving area of reception antenna has become point from face, improved the accuracy of location.
In above-described embodiment, housing in radome and rear screening cover are greater than the decay screening ability of front screening cover to signal to the decay screening ability of signal, when concrete use, can adopt the material that the signal shielding performance of 2.4GHz is reached to 40dB to make housing and rear screening cover, and the material that employing reaches 20dB to the signal shielding performance of 2.4GHz is made front screening cover, like this, the signal strength signal intensity of front end end and the signal of surrounding are moved the capital to another place and are always differed the difference of 20dB, and difference is comparatively obvious.In other embodiments, also can adopt other the suitable material of shielding properties to make housing and forward and backward screening cover, as long as make housing and rear screening cover be greater than the decay screening ability of front screening cover to signal to the decay screening ability of signal, and differ comparatively obviously.
In above-described embodiment, at housing, be set with explosion-proof casing outward, when signal receiver not be used in the place that flame proof is had relatively high expectations, also can not configure explosion-proof casing.
The utility model also provides a kind of embodiment of radome, and the structure of the radome in this embodiment is identical with the structure of the radome in above-mentioned Zigbee signal receiver, does not repeat them here.
Claims (10)
1. a radome, comprise the housing and the corresponding rear screening cover that is arranged at housing rear end that along fore-and-aft direction, extend, it is characterized in that: the front end of described radome is provided with front screening cover, the decay shielding properties of making the metallic shield material of front screening cover is less than the decay shielding properties of the metallic shield material of making described housing and rear screening cover.
2. radome according to claim 1, is characterized in that: the trailing flank corresponding position of described front screening cover is provided with blind hole, and blind hole is the taper hole structure being diminished gradually by backward front aperture.
3. radome according to claim 1 and 2, is characterized in that: described front radome is mesh shields layer.
4. a Zigbee signal receiver, comprise radome, radome comprises the housing and the corresponding rear screening cover that is arranged at housing rear end that along fore-and-aft direction, extend, in housing, be provided with the reception antenna of receiving terminal towards housing front end, it is characterized in that: the front end of described housing is provided with front screening cover, the decay shielding properties of making the metallic shield material of front screening cover is less than the decay shielding properties of the metallic shield material of making described housing and rear screening cover.
5. Zigbee signal receiver according to claim 4, is characterized in that: on the trailing flank of described front screening cover, be provided with blind hole with the receiving terminal corresponding position of described reception antenna, blind hole is the taper hole structure being diminished gradually by backward front aperture.
6. according to the Zigbee signal receiver described in claim 4 or 5, it is characterized in that: described signal receiver comprise be around in housing week laterally along fore-and-aft direction extend flame proof sleeve, the front opening place of flame proof sleeve is installed with the nonmetal front end housing towards the receiving terminal of described reception antenna, nonmetal end cap has the trailing flank with front screening cover front end top interference fit, top pressure side lid after the open rearward end place of flame proof sleeve is installed with, rear top pressure side lid has the leading flank with the top interference fit of rear screening cover rear end, nonmetal front end housing and rear top pressure side lid are equipped with on fore-and-aft direction housing and front, rear screening cover clamping position.
7. Zigbee signal receiver according to claim 6, is characterized in that: described front screening cover is the mesh shields layer being arranged between described housing and nonmetal front shroud.
8. Zigbee signal receiver according to claim 7, it is characterized in that: described mesh shields layer is by backward front radial dimension and becomes gradually large frustum cone structure the sleeve sections corresponding with described mesh shields layer of described flame proof sleeve has and the described mesh shields layer profile that is frustum cone structure coincide corresponding taper hole.
9. Zigbee signal receiver according to claim 6, it is characterized in that: on described rear top pressure side lid and rear screening cover, offer respectively the corresponding wire hole connecting, in wire hole, correspondence is fitted with outlet shielded-plate tube, at outlet shielded-plate tube, be set with outward and the fixing anti-explosion cable seat assembling of described rear top pressure side lid, between anti-explosion cable seat and rear top pressure side lid, be provided with sealing ring.
10. Zigbee signal receiver according to claim 9, it is characterized in that: the front end of described anti-explosion cable seat has the flange terminal pad being connected by trip bolt and rear top pressure side lid, on the rear end face of anti-explosion cable seat, offer thrust cascaded surface rear shoulder hole backwards, described outlet shielded-plate tube is set in described rear shoulder hole, in rear shoulder hole in outlet shielded-plate tube week laterally sealing shroud sealing shroud is housed, the front end of sealing shroud coordinates with described thrust cascaded surface block, its rear end and spiral rotary pack the clamp sleeve top interference fit in rear shoulder hole into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320741975.0U CN203575005U (en) | 2013-11-22 | 2013-11-22 | Shielding cover and Zigbee signal receiver employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320741975.0U CN203575005U (en) | 2013-11-22 | 2013-11-22 | Shielding cover and Zigbee signal receiver employing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203575005U true CN203575005U (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320741975.0U Expired - Lifetime CN203575005U (en) | 2013-11-22 | 2013-11-22 | Shielding cover and Zigbee signal receiver employing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203575005U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333004A (en) * | 2019-07-31 | 2019-10-15 | 四川赛康智能科技股份有限公司 | A kind of thermometric insulating plug of ring network cabinet cable elbow-shaped head |
| CN113055103A (en) * | 2021-03-10 | 2021-06-29 | 安徽超清科技股份有限公司 | 5G mobile communication signal all-round test equipment |
-
2013
- 2013-11-22 CN CN201320741975.0U patent/CN203575005U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333004A (en) * | 2019-07-31 | 2019-10-15 | 四川赛康智能科技股份有限公司 | A kind of thermometric insulating plug of ring network cabinet cable elbow-shaped head |
| CN113055103A (en) * | 2021-03-10 | 2021-06-29 | 安徽超清科技股份有限公司 | 5G mobile communication signal all-round test equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee after: GLTECH Co.,Ltd. Address before: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee before: ZHEJIANG GUANGLI TECH DEVELOPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |