CN211830244U - Button cell electric capacity powered OBU - Google Patents
Button cell electric capacity powered OBU Download PDFInfo
- Publication number
- CN211830244U CN211830244U CN201922325858.6U CN201922325858U CN211830244U CN 211830244 U CN211830244 U CN 211830244U CN 201922325858 U CN201922325858 U CN 201922325858U CN 211830244 U CN211830244 U CN 211830244U
- Authority
- CN
- China
- Prior art keywords
- button
- obu
- capacitor
- circuit board
- printed circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a OBU of button cell electric capacity power supply, include: the device comprises an OBU shell, a button battery, a button capacitor and a printed circuit board; the OBU shell comprises a face shell and a back shell with an anti-dismantling column; the button battery is welded on the front side or the back side of the printed circuit board through the positive and negative lugs and is used for charging the button battery when the voltage of the button capacitor is lower than a preset voltage value; the button capacitor is welded on one side of the bottom surface of the printed circuit board through the positive lug and the negative lug and used for providing power supply voltage for an OBU load circuit on the printed circuit board; the bottom surface of the printed circuit board faces the back shell with the anti-dismantling column and is fixedly installed, the top surface of the printed circuit board faces the face shell, and the face shell is installed on the back shell with the anti-dismantling column and is fixed. The thin button battery and the thin button capacitor are selected as power supply schemes, and a design method of space overlapping utilization is adopted, so that the characteristics of small size, thinness and lightness of the single-chip OBU can be better met.
Description
Technical Field
The utility model discloses a single-chip formula OBU power supply technology in electronic toll collection system especially relates to an OBU of button cell electric capacity power supply.
Background
With the rapid development of intelligent transportation, an Electronic Toll Collection (ETC), namely an ETC system, is widely applied to various major cities and highways under the vigorous promotion of national policies, and by 11 months in 2019, the total number of national ETC users is close to 1.6 billion, provincial stations are completely cancelled by the national transportation department, and the related technical specifications of a single-chip type OBU are provided for enabling users to achieve better ETC service experience; the OBU is issued more and more, and the experience requirements on appearance and size are higher and higher for users, while the traditional OBU adopts a column battery and column capacitor power supply structure design, if the power supply structure design is continuously continued to be used in a single sheet type, although the requirement on the electric quantity service life of the single sheet type OBU can be met, the requirement on the appearance size of the users cannot be met, and therefore on the basis of meeting the service life of the single sheet type OBU, the characteristic that the single sheet type OBU has the light, thin and small appearance size becomes an important research subject.
SUMMERY OF THE UTILITY MODEL
A button cell capacitor powered OBU comprising: the device comprises an OBU shell, a button battery, a button capacitor and a printed circuit board;
the OBU shell comprises a face shell and a back shell with an anti-dismantling column;
the button battery is welded on the front side or the back side of the printed circuit board through the positive and negative lugs and is used for charging the button capacitor when the power generation voltage of the button capacitor is lower than a preset voltage value;
the button capacitor is welded on one side of the bottom surface of the printed circuit board through the positive lug and the negative lug and used for providing power supply voltage for an OBU load circuit on the printed circuit board;
the bottom surface of the printed circuit board faces the back shell with the anti-dismantling column and is fixed with the back shell, the top surface of the printed circuit board faces the face shell, and the face shell is installed on the back shell with the anti-dismantling column.
The button cell capacitor powered OBU further comprises a photocell; the photocell is connected with the back shell with the anti-dismantling column, and the anode and the cathode of the photocell are connected to the printed circuit board through leads and used for charging the button capacitor in a bright environment.
Optionally, an ultrathin insulating layer is placed between the button cell and the printed circuit board;
the OBU face-piece with the dorsal scale of preventing tearing open the post in area passes through the buckle and links to each other.
Optionally, the OBU face shell and the back shell with the anti-disassembly column are further fixed by screws.
The button cell is a single button cell or 2 or more button cells connected in parallel.
The button batteries with consistent internal resistance can be selected to be directly connected in parallel and welded, or each button battery is respectively connected with a diode in series to be used as a whole, and then the whole bodies are connected in parallel;
the button capacitor, the anti-dismantling button on the printed circuit board, the antenna unit and the circuit main body are all arranged at the bottom of the printed circuit board.
Optionally, an ultrathin insulating layer is arranged between the button capacitor and the printed circuit board, so that short circuit between the circuit body or a via hole in the printed circuit board and the anode or cathode metal surface of the button capacitor can be avoided. .
On the basis of ensuring the service life of the single-chip OBU, in order to enable the single-chip OBU to become thinner and smaller and better in user experience, the single-chip OBU adopts a lithium manganese button disposable battery as a standby battery; the single button capacitor is used as an energy storage element, has the characteristics of small capacity and strong discharge capacity, and is responsible for directly supplying power to an OBU load circuit; when the voltage of the button capacitor is lower than a preset voltage value V1, the button battery is responsible for supplying power to the button capacitor; when the single-chip OBU is in an environment with sunlight, the solar photocell can be responsible for supplementing electricity to the button capacitor, and the highest charging voltage V2 of the button capacitor is limited by the output voltage of the solar photocell or the output voltage of the voltage reduction and stabilization circuit between the photocell and the button capacitor; the voltage reduction voltage stabilizer is used for converting the unstable high voltage of the photoelectric conversion of the solar photocell into stable low voltage to charge the button capacitor; in order to ensure the design service life of the single-piece OBU, and meanwhile, under the condition of ensuring the size and thickness of the OBU, the button battery is preferably a single button battery (such as CR3832) with a slightly large diameter and a moderate thickness or a scheme that a plurality of button batteries with small diameters are connected in parallel (such as 2 parallel CR3032 batteries or 4 parallel 2032 batteries), the button battery is preferably fixed on the front surface or the bottom surface of the single-piece OBU printed circuit board by welding positive and negative lugs, and an ultrathin insulating layer is required to be arranged between the button battery and the circuit board between the button battery and the front surface of the circuit board so as to prevent the short circuit problem between the surfaces of the metal positive and negative poles of the button battery and an on-board element or a via hole on the circuit; the button capacitor is welded and fixed on one side of the bottom surface of the circuit board through the positive lug and the negative lug, the button capacitor, the anti-detaching switch, the 5.8G antenna unit, the main control circuit and the like are all positioned on the bottom surface of the printed circuit board, and whether an ultrathin insulating layer is added or not can be determined according to whether a through hole or an on-board element exists in a placing area of the button capacitor on the printed circuit board or not between the button capacitor and the printed circuit board; by selecting the thin button battery and the thin button capacitor and adopting a space overlapping design method, the characteristics of small size, light weight and thinness of the single-chip OBU can be completely met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description will be given below of the drawings required for the embodiments or the technical solutions in the prior art, and it is obvious that the drawings in the following description are an embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without inventive exercise.
FIG. 1 is a structural diagram of an OBU embodiment powered by a button cell capacitor
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
FIG. 1 is a structural diagram of an OBU embodiment powered by a button cell capacitor
In this embodiment, an OBU of button cell electric capacity power supply includes: the device comprises an OBU shell 11, a button battery 12, a button capacitor 13, a photocell 14, a printed circuit board 15, a photocell connecting seat 16, a button capacitor insulating layer 17 and a button battery insulating layer 18;
the OBU shell 11 comprises a face shell and a back shell with an anti-dismantling column; the photocell 14 is embedded in the back shell with the anti-dismantling column and can be fixed through the hot melting column; the positive electrode and the negative electrode of the photocell 14 are connected with a photocell wiring seat 16 on the printed circuit board 15 through leads and used for charging the button capacitor 13 in a bright environment;
the button battery 12 is a lithium manganese button battery, is welded on the front side of the printed circuit board 15 through a positive lug and a negative lug, and is used for charging the button capacitor 13 when the voltage of the button capacitor is lower than a preset voltage value;
the button capacitor 13 has the characteristics of small capacity and strong discharge capacity, is welded on one side of the bottom surface of the printed circuit board 15 through the positive and negative lugs, and is used for providing power supply voltage for an OBU load circuit on the printed circuit board 15;
the bottom surface of the printed circuit board 15 faces the back shell with the anti-dismantling column and is fixedly installed, the top surface of the printed circuit board 15 faces the inner surface of the face shell, and the face shell is installed on the back shell with the anti-dismantling column and is fixed. The OBU face shell is connected with the back shell with the anti-disassembly column through a buckle, and optionally, screws are additionally arranged for fixation;
an ultrathin button cell insulating layer 18 is optionally arranged between the button cell 12 and the printed circuit board 15;
the button cell can be a single button cell with large capacity, or a plurality of button cells connected in parallel, specifically, two button cells (CR3032) with small size and medium capacity can be connected in parallel, or 3 or 4 button cells (CR2032) with smaller size and smaller capacity can be connected in parallel; the button batteries with consistent internal resistance are selected as much as possible to be directly connected in parallel and welded; or each button cell is respectively connected with a diode in series to form a whole, and then a plurality of the whole are connected in parallel, and the method does not need to specially select the cells with consistent internal resistance;
the button capacitor 13 and on-board elements such as the anti-detachment key, the antenna unit and the circuit body on the printed circuit board 15 are positioned at the bottom of the printed circuit board 15, and in order to avoid short circuit between the on-board elements or via holes and the positive or negative metal surface of the button capacitor 13, an ultrathin insulating layer is optionally arranged between the button capacitor 13 and the printed circuit board 15;
in order to make the OBU thinner, the button cell 12 is preferably placed on the bottom surface of the printed circuit board 15, i.e. on the same surface as the button capacitor, and it can be determined whether the button cell is placed in an overlapping manner with the button capacitor according to the highest point limit of the thickness; become OBU thickness restriction point after button cell overlaps with button electric capacity and places, can place button cell and button electric capacity tiling preferentially, can lead to OBU's length grow this moment, but thickness can obviously reduce.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. An OBU powered by a button cell capacitor, comprising: the device comprises an OBU shell, a button battery, a button capacitor and a printed circuit board;
the OBU shell comprises a face shell and a back shell with an anti-dismantling column;
the button battery is welded on the front side or the back side of the printed circuit board through the positive and negative lugs and is used for charging the button capacitor when the power generation voltage of the button capacitor is lower than a preset voltage value;
the button capacitor is welded on one side of the bottom surface of the printed circuit board through the positive lug and the negative lug and used for providing power supply voltage for an OBU load circuit on the printed circuit board;
the bottom surface of the printed circuit board faces the back shell with the anti-dismantling column and is fixed with the back shell, the top surface of the printed circuit board faces the face shell, and the face shell is installed on the back shell with the anti-dismantling column.
2. The button cell, capacitor-powered OBU according to claim 1, further comprising a photovoltaic cell; the photocell is connected with the back shell with the anti-dismantling column, and the anode and the cathode of the photocell are connected to the printed circuit board through leads and used for charging the button capacitor in a bright environment.
3. The button cell, capacitor-powered OBU according to claim 1, wherein an insulating layer is further disposed between the button cell and the printed circuit board.
4. The button cell capacitor powered OBU of claim 1, wherein the OBU face housing is snap-fit to the back housing with the tamper post.
5. The button cell, capacitor-powered OBU according to claim 4, wherein the OBU face shell and the back shell with anti-detach posts are further secured using screws.
6. The button cell battery capacitor-powered OBU according to claim 1, wherein the button cell battery is a single button cell battery or 2 or more button cell batteries connected in parallel.
7. The button cell capacitor powered OBU of claim 1, wherein the button capacitor and the tamper button, antenna unit, circuit body on the printed circuit board are located at the bottom of the printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922325858.6U CN211830244U (en) | 2019-12-20 | 2019-12-20 | Button cell electric capacity powered OBU |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922325858.6U CN211830244U (en) | 2019-12-20 | 2019-12-20 | Button cell electric capacity powered OBU |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211830244U true CN211830244U (en) | 2020-10-30 |
Family
ID=73033378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922325858.6U Active CN211830244U (en) | 2019-12-20 | 2019-12-20 | Button cell electric capacity powered OBU |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211830244U (en) |
-
2019
- 2019-12-20 CN CN201922325858.6U patent/CN211830244U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214411281U (en) | Lithium ion battery with cap charging indication function | |
| CN211830244U (en) | Button cell electric capacity powered OBU | |
| CN203326667U (en) | Solar energy-based fault indicator power supplying power source | |
| CN201222703Y (en) | Photoelectric conversion energy source regenerative device for display screen or light source | |
| CN210123905U (en) | Folding portable solar charger | |
| CN206789594U (en) | A kind of solar charging electrical storage cell | |
| CN203251113U (en) | Multifunctional battery charger | |
| CN203135485U (en) | Novel solar energy mobile power box | |
| CN203334706U (en) | Mobile house achieving hybrid power generation | |
| CN207652122U (en) | Portable charging panel | |
| CN206640380U (en) | A kind of solar energy radio charging folding bag | |
| CN201699438U (en) | Split photovoltaic power case | |
| JP3087086U (en) | Power supply unit | |
| CN215869631U (en) | Solar direct current fan | |
| CN218920003U (en) | Charging-discharging and residual electricity detection management system and rechargeable battery | |
| CN218736144U (en) | Green belt capable of generating electricity | |
| CN209184637U (en) | A kind of clamshell handset shell with high-efficiency photovoltaic electrification and storage function | |
| CN201947326U (en) | Solar energy power supply mobile phone | |
| CN219394791U (en) | Solar cell panel | |
| CN204068289U (en) | Conjuncted battery | |
| CN211859651U (en) | Device for fully consuming super capacitor electric energy to protect photovoltaic charging storage battery | |
| CN211606171U (en) | Mobile power supply with emergency charging function | |
| CN202034453U (en) | Improved battery, nested battery and remote controller | |
| CN213693204U (en) | Battery charging and discharging circuit device | |
| CN213457979U (en) | Solar-powered wireless keyboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |