CN205280108U - Intelligence teletransmission equipment and teletransmission instrument - Google Patents
Intelligence teletransmission equipment and teletransmission instrument Download PDFInfo
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- CN205280108U CN205280108U CN201520895297.2U CN201520895297U CN205280108U CN 205280108 U CN205280108 U CN 205280108U CN 201520895297 U CN201520895297 U CN 201520895297U CN 205280108 U CN205280108 U CN 205280108U
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- pcb board
- copper foil
- antenna
- electrically connected
- intelligent telemetering
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Abstract
The utility model discloses an intelligence teletransmission equipment and teletransmission instrument. Intelligent teletransmission equipment, include: the metal casing, the metal casing has the appearance chamber, the opening has been offered on the metal casing, the opening in hold the chamber intercommunication, a PCB board, a PCB board set up in hold the intracavity, the 2nd PCB board, be provided with the antenna that is used for transmitting communication signal on the 2nd PCB board, the 2nd PCB board on have a transparent portion, through transparent portion can watch hold the intracavity, the 2nd PCB board and PCB board electricity be connected and communication connection, be provided with maskable electromagnetic signal's metal level on the 2nd PCB board. The utility model discloses the interference to intelligent teletransmission equipment intercommunication frequency channel circuit of static, direct current, low frequency signals and microwave high frequency signal has been prevented effectively.
Description
Technical field
The utility model relates to intelligent telemetering equipment and the remote transmission instrument of a kind of electromagnetism interference.
Background technology
Existing combustion gas table, ammeter or water meter are generally unintelligent device, and unintelligent device generally includes housing, the shell of gas meter counting device and the upper cover coverboard of gas meter counting device. For unintelligent device, the shell of counting mechanism and the upper cover coverboard of counting mechanism generally are plastic material, and antenna is arranged in housing also can not affect transmission and the reception of communication signal. For intelligent telemetering equipment, in order to electromagnetism interference, housing needs to adopt metal material. Whole counting mechanism shell and its cover plate just constitute a metal cavitg closed by electromagnetism signal. Now, for the communication circuit being placed in this metal cavitg, anti-outside electromagnetic interference performance has been very well, but signal transmission performance cannot meet service requirements.
Practical novel content
One of the purpose of this utility model is to overcome deficiency of the prior art, it is provided that a kind of can send again the intelligent telemetering equipment of signal by electromagnetism interference.
For realizing above object, the utility model is achieved through the following technical solutions:
Intelligent telemetering equipment, it is characterised in that, comprising:
Metal housing, described metal housing has cavity volume, and described metal housing has offered opening, described in be opened on described cavity volume be connected;
First pcb board, described first pcb board is arranged in described cavity volume;
2nd pcb board, described 2nd pcb board is provided with the antenna for transmit communications signals, the 2nd described pcb board has transparent portion, can watch in described cavity volume by described transparent portion; The 2nd described pcb board is electrically connected with the first pcb board and communicates to connect;
Being provided with on described 2nd pcb board can the metal level of shield electromagnetic signals.
According to a preferred embodiment of the present utility model, stating metal level is Copper Foil, and described first pcb board is provided with grounding circuit, and described Copper Foil is electrically connected with described grounding circuit; Described grounding circuit is electrically connected with described metal housing.
According to a preferred embodiment of the present utility model, being electrically connected with described grounding circuit by described Copper Foil by multiple metal fastening piece, described 2nd pcb board is arranged on described metal housing by described metal fastening piece.
According to a preferred embodiment of the present utility model, described 2nd pcb board is provided with antenna Copper Foil, described first pcb board is provided with communication signal transmissions circuit; Described communication signal transmissions circuit is electrically connected with described antenna Copper Foil.
According to a preferred embodiment of the present utility model, described antenna comprises the first antenna Copper Foil linearly extended, and the 2nd antenna Copper Foil of bending shape.
According to a preferred embodiment of the present utility model, described first antenna Copper Foil is all connected with described communication signal transmissions circuit electrical with described 2nd antenna Copper Foil.
According to a preferred embodiment of the present utility model, described first antenna Copper Foil is electrically connected by electric capacity C1 and the inductance L 1 being arranged in parallel with described 2nd antenna Copper Foil; Described 2nd antenna Copper Foil is electrically connected with described metal level by inductance L 2.
The two of the purpose of this utility model are to overcome deficiency of the prior art, it is provided that a kind of can send again the remote transmission instrument of signal by electromagnetism interference.
For realizing above object, the utility model is achieved through the following technical solutions:
Remote transmission instrument, it is characterised in that, comprise counting mechanism and aforesaid intelligent telemetering device housings; Described counting mechanism is for measuring and shows metering numerical value, and described counting mechanism is arranged in described metal housing, can be observed the metering numerical value of described counting mechanism by described transparent portion.
Intelligent telemetering equipment in the utility model and remote transmission instrument, communication signal on first pcb board is externally sent by the antenna on the 2nd pcb board, 2nd pcb board both can be used as antenna, can also as the cover plate covering opening, simultaneously, metal level on 2nd pcb board can also play the effect of shield electromagnetic signals, both ensure that the capability of electromagnetic shielding of housing, can provide again good communication signal transmissions function. Therefore, the utility model can be used for intelligent telemetering equipment, and the circuit devcie of inside can not be produced interference by external electromagnetic signal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the utility model front view.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the 2nd pcb board structure sectional view of the present utility model.
Number in the figure illustrates:
1, metal housing; 2, the first pcb board; 3, the 2nd pcb board; 31, transparent portion; 32, open holes; 33, Copper Foil; 34, the first antenna Copper Foil; 35, third antenna Copper Foil; 4, concentric cable.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figures 1 to 4, intelligent telemetering equipment, comprises metal housing 1, first pcb board 2 and the 2nd pcb board 3. Metal housing 1 has cavity volume 11. Metal housing 1 is provided with opening 12. Opening 12 is connected with cavity volume 11. First pcb board 2 is arranged in cavity volume 11. First pcb board 2 is provided with grounding circuit and communication signal transmissions circuit (not shown).
Opening 12 place of metal housing 1 is provided with the 2nd pcb board 3, described 2nd pcb board 3 is provided with the antenna for transmit communications signals, in example as shown in the figure, antenna comprises linearly extended first antenna Copper Foil 34, and the 2nd antenna Copper Foil 35 of bending shape. Described first antenna Copper Foil 34 is all connected with described communication signal transmissions circuit electrical with described 2nd antenna Copper Foil 45, in example as shown in the figure, described first antenna Copper Foil 34 is connected with described communication signal transmissions circuit electrical by the interior conductor of concentric cable 4 and outer conductor respectively with described 2nd antenna Copper Foil 35. Described first antenna Copper Foil 34 is electrically connected by electric capacity C1 and the inductance L 1 being arranged in parallel with described 2nd antenna Copper Foil 35.
Described 2nd pcb board 3 has transparent portion 31, can be watched in described cavity volume 11 by described transparent portion 31. Being provided with on 2nd pcb board 3 can the metal level of shield electromagnetic signals. In example as shown in the figure, metal level is Copper Foil 33. Described Copper Foil 33 is electrically connected with described grounding circuit; Described grounding circuit is electrically connected with described metal housing 1. In example as shown in the figure, the 2nd pcb board 3 is provided with multiple open holes 32 run through. By multiple metal fastening piece as metallic screw can by as described in Copper Foil 33 with as described in grounding circuit be electrically connected. Described 2nd pcb board 3 is arranged on described metal housing 1 by described metal fastening piece. Described 2nd antenna Copper Foil 35 is electrically connected with described Copper Foil 33 by inductance L 2.
Counting mechanism (not shown) is set in cavity volume 11, can be used for for metering, such as combustion gas table, water meter or ammeter etc. Counting mechanism is for measuring numerical value and shows metering numerical value, can be observed the metering numerical value of described counting mechanism by described transparent portion 31.
It is connected in parallel with inductance L1 and electric capacity C1 between first antenna Copper Foil 34 and the 2nd antenna Copper Foil 35, connects with inductance L2 between the 2nd antenna Copper Foil 35 and Copper Foil 33. The effect of inductance L 1 mainly makes this patent antenna can conveniently make electrostatic and low-frequency interference signal bypass (in low resistance) near feeding point, the effect of electric capacity C1 makes microwave interference high-frequency signal bypass (in low resistance) near the feeding point of this patent antenna, but the LC loop in parallel that L1 and C1 is formed must stop the signal bypass (in high resistance) of work frequency range. One of effect of inductance L 2 is that electrostatic between bigger Copper Foil 33 and the 2nd antenna Copper Foil 35 and low-frequency interference signal also can be circulated, and the two of effect are that the inductance value changing L2 just can the mid-frequency of convenient microcell antenna. Electrostatic on the antenna of the 2nd pcb board 3, low-frequency interference signal and microwave high-frequency undesired signal just can ground connection bypass, this just effectively prevent electrostatic, direct current, low frequency signal and microwave high-frequency signals are to the interference of communications band circuit.
Intelligence (teletransmission) combustion gas table manufactures company given for the size and dimension of the gas meter counting device upper cover coverboard 3 shown in accompanying drawing 1, and communications band selected after, this patent antenna just can with reference to the antenna pattern shown in accompanying drawing 2, carry out antenna design, determine the length covering copper chaff straight-line segment 5 (GH) and bending line segment 6 (BDF), and the spacing (W) covered the width (N) of copper chaff and cover between copper chaff, the concrete numerical value of inductance L 1, L2 and electric capacity C1 is determined according to the requirement of the telecommunication center frequency worked and electromagnetism interference.
This patent antenna is according to the actual shape of certain intelligence (teletransmission) gas meter counting device shell of top cover board size (110 �� 45) mm, having made a block-shaped Copper Foil pcb board that covers as shown in Figure 2 and tested antenna, its size (mm) is as follows:
P=110, Q=45, S=39, GH=38, W=1.5, N=1.0, bending line segment (BDF) overall length=160, in addition selected L1=82nh, L2=68nh, C1=1.5pf, this standing wave coefficient (VSWR) test value covering Copper Foil pcb board antenna is as follows:
Intelligent telemetering equipment in the utility model and remote transmission instrument, communication signal on first pcb board is externally sent by the antenna on the 2nd pcb board, 2nd pcb board both can be used as antenna, can also as the cover plate covering opening, simultaneously, metal level on 2nd pcb board can also play the effect of shield electromagnetic signals, both ensure that the capability of electromagnetic shielding of housing, can provide again good communication signal transmissions function. Therefore, the utility model can be used for intelligent telemetering equipment, and the circuit devcie of inside can not be produced interference by external electromagnetic signal.
Embodiment in the utility model, only for being described by the utility model, does not form the restriction to right, other replacements being substantially equal to that those skilled in that art can expect, all in the utility model protection domain.
Claims (8)
1. intelligent telemetering equipment, it is characterised in that, comprising:
Metal housing, described metal housing has cavity volume, and described metal housing has offered opening, described in be opened on described cavity volume be connected;
First pcb board, described first pcb board is arranged in described cavity volume;
2nd pcb board, described 2nd pcb board is provided with the antenna for transmit communications signals, the 2nd described pcb board has transparent portion, can watch in described cavity volume by described transparent portion; The 2nd described pcb board is electrically connected with the first pcb board and communicates to connect;
Being provided with on described 2nd pcb board can the metal level of shield electromagnetic signals.
2. intelligent telemetering equipment according to claim 1, it is characterised in that: described metal level is Copper Foil, and described first pcb board is provided with grounding circuit, and described Copper Foil is electrically connected with described grounding circuit; Described grounding circuit is electrically connected with described metal housing.
3. intelligent telemetering equipment according to claim 2, it is characterised in that: being electrically connected with described grounding circuit by described Copper Foil by multiple metal fastening piece, described 2nd pcb board is arranged on described metal housing by described metal fastening piece.
4. intelligent telemetering equipment according to claim 1, it is characterised in that: described 2nd pcb board is provided with antenna Copper Foil, described first pcb board is provided with communication signal transmissions circuit; Described communication signal transmissions circuit is electrically connected with described antenna Copper Foil.
5. intelligent telemetering equipment according to claim 4, it is characterised in that: described antenna comprises the first antenna Copper Foil linearly extended, and the 2nd antenna Copper Foil of bending shape.
6. intelligent telemetering equipment according to claim 5, it is characterised in that: described first antenna Copper Foil is all connected with described communication signal transmissions circuit electrical with described 2nd antenna Copper Foil.
7. intelligent telemetering equipment according to claim 5, it is characterised in that: described first antenna Copper Foil is electrically connected by electric capacity C1 and the inductance L 1 being arranged in parallel with described 2nd antenna Copper Foil; Described 2nd antenna Copper Foil is electrically connected with described metal level by inductance L 2.
8. remote transmission instrument, it is characterised in that, comprise the intelligent telemetering device housings described in counting mechanism and claim 1 to 7 any claim; Described counting mechanism is for measuring and shows metering numerical value, and described counting mechanism is arranged in described metal housing, can be observed the metering numerical value of described counting mechanism by described transparent portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895297.2U CN205280108U (en) | 2015-11-11 | 2015-11-11 | Intelligence teletransmission equipment and teletransmission instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895297.2U CN205280108U (en) | 2015-11-11 | 2015-11-11 | Intelligence teletransmission equipment and teletransmission instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205280108U true CN205280108U (en) | 2016-06-01 |
Family
ID=56064675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520895297.2U Active CN205280108U (en) | 2015-11-11 | 2015-11-11 | Intelligence teletransmission equipment and teletransmission instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205280108U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444796A (en) * | 2015-11-11 | 2016-03-30 | 上海杰盛康通信工程有限公司 | Intelligent remote transmission device and remote transmission instrument |
| CN109314306A (en) * | 2016-09-01 | 2019-02-05 | 松下知识产权经营株式会社 | Wireless communication device |
-
2015
- 2015-11-11 CN CN201520895297.2U patent/CN205280108U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444796A (en) * | 2015-11-11 | 2016-03-30 | 上海杰盛康通信工程有限公司 | Intelligent remote transmission device and remote transmission instrument |
| CN105444796B (en) * | 2015-11-11 | 2018-09-25 | 上海杰盛康通信工程有限公司 | Intelligent telemetering equipment and remote transmission instrument |
| CN109314306A (en) * | 2016-09-01 | 2019-02-05 | 松下知识产权经营株式会社 | Wireless communication device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |