CN215811064U - Gas meter control box with infrared transmission and gas meter - Google Patents
Gas meter control box with infrared transmission and gas meter Download PDFInfo
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- CN215811064U CN215811064U CN202121705749.8U CN202121705749U CN215811064U CN 215811064 U CN215811064 U CN 215811064U CN 202121705749 U CN202121705749 U CN 202121705749U CN 215811064 U CN215811064 U CN 215811064U
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- 238000012423 maintenance Methods 0.000 description 2
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Abstract
The utility model discloses a gas meter control box with infrared transmission and a gas meter, which comprise a bottom box and a front cover, wherein a mounting groove is arranged in the bottom box, a control mainboard is arranged in the mounting groove, the control mainboard is electrically connected with an infrared communication module, an infrared communication area is arranged on the front cover corresponding to the infrared communication module, the infrared communication area is made of infrared-transmitting plastic, and the wall thickness of the infrared communication area is smaller than that of other areas of the front cover; the scheme has the advantages that the gas meter control box does not need to be detached and then wired connection is carried out when data transmission is carried out, and only the infrared data transmission head needs to be aligned to the infrared communication area of the front cover, so that the data transmission time is saved, and the operation efficiency is improved.
Description
Technical Field
The utility model belongs to the field of gas meter control boxes, and particularly relates to a gas meter control box with infrared transmission and a gas meter.
Background
In the traditional diaphragm gas meter, functional modules such as electromechanical conversion, electronic control, a power supply, a valve and the like are added on a base meter to convert mechanical counting into electronic counting. The traditional method is that electronic parts such as a circuit board, a card seat, a display, a button, a battery and the like are fixedly installed on a bottom plate in a unified mode, and share an anti-dismounting device with a counting part, so that the traditional membrane type gas meter is various in parts of general assembly, inconvenient to produce and detect, and difficult to improve the protection performance because the whole meter needs to be dismounted and maintained when fault maintenance is carried out at the later stage;
in order to improve the maintenance convenience, a gas meter control box is designed, circuit parts such as a circuit board and a battery are integrated in the independent gas meter control box, and when a fault occurs, the box only needs to be disassembled or repaired without disassembling and replacing the whole gas meter;
however, the existing gas meter control box does not have an infrared transmission function, when data transmission is needed, the gas meter control box still needs to be detached and then connected through a wire, and then data transmission is conducted;
and the display screen of many gas table control box is grey background, leads to the user to be difficult for seeing the content of display screen clearly at all in the not good condition of light or view not good, also is not convenient for carry out data transmission.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the technical problems to be solved by the utility model are as follows: how to provide a both conveniently carry out infrared transmission and can also be convenient for see the gas table control box of display screen clearly.
In order to solve the technical problems, the utility model adopts the following technical scheme: a gas meter control box with infrared transmission and a gas meter comprise a bottom box and a front cover, wherein a mounting groove is formed in the bottom box, a control mainboard is mounted in the mounting groove, the control mainboard is electrically connected with an infrared communication module, an infrared communication area is arranged on the front cover corresponding to the infrared communication module, the infrared communication area is made of infrared-transmitting plastic, and the wall thickness of the infrared communication area is smaller than that of other areas of the front cover;
a backlight installation area is arranged on the control main board corresponding to the gas meter display area, and a backlight mechanism for improving the brightness of the gas meter display area is arranged in the backlight area;
the mounting groove below is provided with the battery compartment, the battery compartment is connected with the control mainboard electricity, the protecgulum with end box lock installation.
The working principle of the scheme is as follows:
the battery compartment is internally provided with a power supply battery, the battery compartment supplies power for the control mainboard, the control mainboard supplies power for the infrared communication module, and the infrared communication module works normally;
this scheme still is provided with mechanism in a poor light on the control mainboard, when the staff carries out data transmission, even if also can see clearly the content in the display screen under the not good or not good environment of light in the field of vision.
The beneficial effect of this scheme:
1. when data transmission is carried out, the gas meter control box does not need to be detached and then wired connection is carried out, and only the infrared data transmission head needs to be aligned to the infrared communication area of the front cover, so that the data transmission time is saved, and the operation efficiency is improved.
2. The gas meter control box does not need to be punched, and the gas tightness of the gas meter control box is guaranteed.
3. The backlight mechanism can also be used for clearly seeing the content in the display screen under the environment with poor visual field or poor light.
Drawings
Fig. 1 is an exploded view of an embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of an embodiment of the present invention.
Fig. 3 is a schematic circuit diagram of a control motherboard and an NB communication module according to an embodiment of the present invention.
Fig. 4 is a schematic circuit diagram of an infrared communication module according to an embodiment of the present invention.
Fig. 5 is a perspective view of the bottom case according to the embodiment of the present invention.
FIG. 6 is a front view of the back box in an embodiment of the present invention.
Reference numerals: the infrared communication module comprises a front cover 1, infrared transmitting plastic 10, a bottom box 2, a control main board 230, a display screen 210, a serial port pin 211, a backlight board 220, shading paper 221, a side-emitting LED lamp 231, a reflecting film 232, a battery bin 24 and an infrared communication module 25.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the specific implementation: as shown in fig. 1, a gas meter control box with infrared transmission and a gas meter include a bottom box and a front cover, wherein a mounting groove is formed in the bottom box, a control mainboard is mounted in the mounting groove, the control mainboard is electrically connected with an infrared communication module 25, an infrared communication area is arranged on the front cover corresponding to the infrared communication module 25, the infrared communication area is made of infrared-transmitting plastic 10, and the wall thickness of the infrared communication area is smaller than that of other areas of the front cover;
a backlight installation area is arranged on the control main board corresponding to the gas meter display area, and a backlight mechanism for improving the brightness of the gas meter display area is arranged in the backlight area;
the mounting groove below is provided with the battery compartment, and the battery compartment is connected with the control mainboard electricity, and the protecgulum is installed with end box lock.
The battery compartment is internally provided with a power supply battery, the battery compartment supplies power for the control mainboard, the control mainboard supplies power for the infrared communication module 25, the infrared communication module 25 works normally, when data reading is needed to be carried out on the gas meter, the infrared data transmission head is firstly aligned to the infrared communication area, infrared light can penetrate through the infrared communication area to directly and quickly carry out data transmission with the infrared data transmission head, and the infrared light belongs to one type of visible light communication but has certain penetrating power, so the infrared communication area is the infrared transmitting plastic 10, the infrared transmitting plastic 10 can effectively cut off visible light and transmit infrared light, and the infrared transmitting plastic 10 can ensure that the infrared data transmission cannot be influenced by the visible light; the infrared transmitting plastic 10 has low cost, is not easy to break, can reduce the production cost and prolong the service life;
the wall thickness of the infrared communication area is smaller than that of other areas of the front cover, so that infrared light emitted by the infrared communication module 25 can stably penetrate through the infrared-transmitting plastic 10 to perform data transmission with the infrared data transmission head;
this scheme still is provided with mechanism in a poor light on the control mainboard, when the staff carries out data transmission, even if also can see clearly the content in the display screen under the not good or not good environment of light in the field of vision.
As shown in fig. 2 to 4, the infrared communication module includes an infrared output circuit and an infrared input circuit, the infrared output circuit includes an infrared emission tube and a triode, a collector of the triode is connected to a cathode of the infrared emission tube, an anode of the infrared emission tube is connected to the VEE power interface via a pull-down resistor, an emitter of the triode is grounded, and a base of the triode is connected to an infrared output pin of the control motherboard via a voltage stabilizing resistor;
the input end of the infrared input circuit is connected with an infrared input pin of the control mainboard, and the power supply input end of the infrared input circuit is connected with the IRM _ VEE power supply interface through a series resistor.
An infrared output circuit: the infrared transmitting tube is D7, the triode is Q5, the voltage stabilizing resistor is R22, the pull-down resistor is R26, the infrared transmission circuit is R25, and the infrared output end is HWXSC;
an infrared input circuit: the infrared receiver is marked as HWXT, and is connected with a resistor R37 in series, the infrared input end is HWXSR, and the rest serial ports of the infrared receiver are grounded;
controlling the main board: the model of the control mainboard is STM8L052R8, a PG0 pin of the control mainboard is connected with the infrared input end, and a PD4 pin of the control mainboard is connected with the infrared output end;
when the infrared signal is output, the control mainboard STM8L052R8 modulates a binary signal, the binary signal after being coded is modulated into an intermittent pulse string with the frequency of 38kHz, the intermittent pulse string is equivalent to the intermittent pulse string obtained by multiplying the code of the binary signal by a pulse signal with the frequency of 38kHz, and the modulated intermittent pulse string is sent out through an infrared emission tube through a pin PD 4;
when receiving signals, the signals are demodulated by an infrared receiver HWXT and then transmitted to a control mainboard through a pin PG0 to obtain data information.
The control mainboard is further electrically connected with an NB communication module, a data output pin of the control mainboard is connected with a data receiving pin of the NB communication module through a fifth resistor, and the data receiving pin of the control mainboard is connected with the data output pin of the NB communication module through a sixth resistor.
The NB communication module is as follows: in the BC28 wireless communication module, a data receiving pin of the BC28 is RXD, a data output pin of the BC28 is TXD, a data output pin of the control motherboard is PA2, a data input pin of the control motherboard is PA3, a fifth resistor is R5, and a sixth resistor R6.
As shown in fig. 5 to 6, the backlight mechanism includes a backlight plate, the backlight plate is fixedly installed in the backlight installation region, at least one side-emitting LED lamp is disposed on a side surface of the backlight plate, and the side-emitting LED lamp is electrically connected to the control main board;
the display screen is installed on the light-emitting surface of the backlight plate, the display screen is over against the display area of the gas meter, and the display screen is electrically connected with the control main board.
When the backlight panel is in poor sight or insufficient light, the control main board 230 enables the side-emitting LED lamp 231 to be conducted, the side-emitting LED lamp 231 emits light to the backlight panel 220, the backlight panel 220 absorbs light emitted from the lamp by using an optical-grade acrylic panel to stay on the surface of the optical-grade acrylic panel, when the light is emitted to each light guide point in the backlight panel 220, reflected light in the backlight panel 220 can be diffused to each angle, then the reflected light is damaged and emitted from the light emitting surface of the backlight panel 220, and the light emitted from the light emitting surface illuminates the periphery of the display screen 210, so that the light is complemented or the sight is better; therefore, the user can smoothly check the information on the gas meter under the environment with poor sight line or insufficient light.
Wherein, the display screen is a liquid crystal display screen without a backlight source.
The liquid crystal display screen 210 without the backlight source is a low-power-consumption element, so that the power consumption of the gas meter can be reduced, the service life is prolonged, the manufacturing cost of the liquid crystal display screen 210 without the backlight source is lower, not only is the cost saved for manufacturers facilitated, but also the large-batch production facilitated, and the fault tolerance rate is higher when the liquid crystal display screen 210 without the backlight source is matched with a backlight structure.
Wherein, the long avris of display screen extends there is the serial ports contact pin, and the long avris that the serial ports contact pin was walked around the board in a poor light is connected with the display interface electricity of control mainboard, and the board in a poor light is fixed with the control mainboard centre gripping to the display screen.
The backlight device comprises a backlight plate, a backlight installation area, a backlight plate short side and a plurality of side-emitting LED lamps, wherein the position, close to the short side of the backlight plate, on the backlight installation area is fixedly provided with the side-emitting LED lamps, light emitting parts of the side-emitting LED lamps are attached to the short side of the backlight plate, and the light emitting parts are opposite to the short side of the backlight plate.
When the side-emitting LED lamps 231 are arranged on the short side of the backlight plate 220, the number of the side-emitting LED lamps 231 required is the least, and the effect is the best, in the scheme, three side-reflecting LED lamps are used, and the number of the side-emitting LED lamps 231 can be added according to the user's requirements and the size of the display screen 210; when the light emitting part of the side-emitting LED lamp 231 is attached to the short side of the backlight plate 220 and the light emitting part is opposite to the short side of the backlight plate 220, most of the light emitted from the side-emitting LED lamp 231 enters the backlight plate 220, so that the light source of the side-emitting LED lamp 231 can be fully utilized, and the light emitting effect of the backlight plate 220 is improved.
The backlight module comprises a backlight plate, a backlight installation area, a light collecting mechanism and a light source, wherein the backlight installation area is also provided with the light collecting mechanism, the light collecting mechanism comprises at least one reflecting film, a light collecting channel is arranged around the reflecting film, and the light collecting channel is opposite to the short side of the backlight plate;
the side-emitting LED lamp is positioned in the light gathering channel.
Wherein, all the other sides except that being provided with the luminous LED lamp of side in four sides of board in a poor light all are provided with the shading paper.
The light source is prevented from scattering, and the light emitting effect of the backlight plate 220 is further improved.
The above is only a preferred embodiment of the present invention, and it should be noted that several modifications and improvements made by those skilled in the art without departing from the technical solution should also be considered as falling within the scope of the claims.
Claims (10)
1. The utility model provides a take infrared transmission's gas table control box and gas table which characterized in that: the infrared communication box comprises a bottom box and a front cover, wherein a mounting groove is formed in the bottom box, a control mainboard is mounted in the mounting groove, the control mainboard is electrically connected with an infrared communication module, an infrared communication area is arranged on the front cover corresponding to the infrared communication module, the infrared communication area is made of infrared-transmitting plastic, and the wall thickness of the infrared communication area is smaller than that of other areas of the front cover;
the control main board is also provided with a backlight installation area corresponding to the gas meter display area, and a backlight mechanism for improving the brightness of the gas meter display area is arranged in the backlight installation area;
the mounting groove below is provided with the battery compartment, the battery compartment is connected with the control mainboard electricity, the protecgulum with end box lock installation.
2. The gas meter control box and the gas meter with the infrared transmission function according to claim 1, wherein: the infrared communication module comprises an infrared output circuit and an infrared input circuit, the infrared output circuit comprises an infrared transmitting tube and a triode, a collector of the triode is connected with a cathode of the infrared transmitting tube, an anode of the infrared transmitting tube is connected with a VEE power interface through a pull-down resistor, an emitter of the triode is grounded, and a base of the triode is connected with an infrared output pin of the control mainboard through a voltage stabilizing resistor;
the input end of the infrared input circuit is connected with an infrared input pin of the control mainboard, and the power supply input end of the infrared input circuit is connected with the IRM _ VEE power supply interface through a series resistor.
3. The gas meter control box and the gas meter with the infrared transmission function according to claim 1, wherein: the control mainboard is further electrically connected with an NB communication module, a data output pin of the control mainboard is connected with a data receiving pin of the NB communication module through a fifth resistor, and the data receiving pin of the control mainboard is connected with the data output pin of the NB communication module through a sixth resistor.
4. The gas meter control box and the gas meter with the infrared transmission function according to claim 1, wherein: the backlight mechanism comprises a backlight plate which is fixedly arranged in a backlight installation area, at least one side light-emitting LED lamp is arranged on the side surface of the backlight plate, and the side light-emitting LED lamp is electrically connected with the control main board;
the display screen is arranged on the light emitting surface of the backlight plate, the display screen is right opposite to the gas meter display area, and the display screen is electrically connected with the control main board.
5. The gas meter control box and the gas meter with the infrared transmission function according to claim 4, wherein: the display screen is a liquid crystal display screen without a backlight source.
6. The gas meter control box and the gas meter with the infrared transmission function according to claim 5, wherein: the long side of display screen extends has the serial ports contact pin, the serial ports contact pin is connected with the display interface electricity of control mainboard around the long side of board in a poor light, just the display screen is fixed with the centre gripping of control mainboard the board in a poor light.
7. The gas meter control box and the gas meter with the infrared transmission function according to claim 4, wherein: the backlight module is characterized in that a plurality of side-lighting LED lamps are fixed at positions, close to the short side of the backlight plate, on the backlight installation area, and light emitting parts of the side-lighting LED lamps are attached to the short side of the backlight plate and just opposite to the short side of the backlight plate.
8. The gas meter control box and the gas meter with the infrared transmission function according to claim 7, wherein: the backlight installation area is also provided with a light condensation mechanism, the light condensation mechanism comprises at least one reflection film, a light condensation channel is arranged around the reflection film, and the light condensation channel is opposite to the short side of the backlight plate;
the side-emitting LED lamp is positioned in the light gathering channel.
9. The gas meter control box and the gas meter with the infrared transmission function according to claim 8, wherein: except that the rest sides of the four sides of the backlight plate provided with the side light-emitting LED lamps are provided with shading paper.
10. A gas meter is characterized in that: the gas meter control box with the infrared transmission function and the gas meter comprise the gas meter control box with the infrared transmission function and the gas meter according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121705749.8U CN215811064U (en) | 2021-07-26 | 2021-07-26 | Gas meter control box with infrared transmission and gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121705749.8U CN215811064U (en) | 2021-07-26 | 2021-07-26 | Gas meter control box with infrared transmission and gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215811064U true CN215811064U (en) | 2022-02-11 |
Family
ID=80184374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121705749.8U Expired - Fee Related CN215811064U (en) | 2021-07-26 | 2021-07-26 | Gas meter control box with infrared transmission and gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215811064U (en) |
-
2021
- 2021-07-26 CN CN202121705749.8U patent/CN215811064U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220211 |