CN220057570U - Acceleration sensor and road monitoring device - Google Patents
Acceleration sensor and road monitoring device Download PDFInfo
- Publication number
- CN220057570U CN220057570U CN202321602579.XU CN202321602579U CN220057570U CN 220057570 U CN220057570 U CN 220057570U CN 202321602579 U CN202321602579 U CN 202321602579U CN 220057570 U CN220057570 U CN 220057570U
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- circuit board
- acceleration sensor
- acceleration
- gravity direction
- chip
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 11
- 230000005484 gravity Effects 0.000 claims abstract description 38
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 238000004806 packaging method and process Methods 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005538 encapsulation Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
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- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to an acceleration sensor and a road monitoring device, wherein the road monitoring device comprises an acceleration sensor, the acceleration sensor comprises a first circuit board, a second circuit board and a conductor, and a functional module is arranged on the first circuit board; an acceleration chip is arranged on the second circuit board, one end of the second circuit board along the gravity direction is connected with the first circuit board, a preset angle is formed between the acceleration chip and the first circuit board, one end of the conductor is connected with the first circuit board, and the other end of the conductor is connected with the second circuit board. When in actual use, the second circuit board and the first circuit board are arranged at a preset angle, and when the second circuit board is implanted into the road surface along the gravity direction, the first circuit board and the gravity direction are arranged at a preset angle, so that the total length of the first circuit board and the second circuit board along the gravity direction is reduced, namely the ratio of the length of the acceleration sensor along the gravity direction to the total thickness of the road surface is reduced, and disturbance to the surface layer of the road surface is reduced.
Description
Technical Field
The utility model relates to the technical field of road monitoring, in particular to an acceleration sensor and a road monitoring device.
Background
During the service period of the highway infrastructure, the highway infrastructure receives the reciprocating action of loads such as vehicles and environment and can generate diseases such as cracking and void, so that the service capacity of the highway is reduced. The monitoring of the service state of the road ensures that the road is repaired in the early disease stage, and is an important way for prolonging the service life of the road and reducing the cost of the whole life cycle of the road.
In the related art, an acceleration chip is generally packaged on a PCB board to form an acceleration sensor, and the acceleration sensor is implanted into a road surface along a gravity direction, so that an induction direction of the acceleration chip is along the gravity direction, and a vibration state of a road structure is monitored, so that a service state of the road is analyzed from a dynamics angle.
However, since a plurality of functional modules, such as a power module, a control module, and a communication module, are also required to be mounted on the PCB board, the length of the acceleration sensor in the gravity direction is long. When the acceleration sensor is implanted into the road surface, the length of the acceleration sensor along the gravity direction is larger than the total thickness of the road surface relative to the road surface with the total thickness of only twenty centimeters, so that the disturbance to the road structure is larger, and the service life of the road is reduced.
Disclosure of Invention
Accordingly, it is necessary to provide an acceleration sensor and a road monitoring device for solving the problem that the service life of the road surface is reduced due to a relatively large total thickness of the acceleration sensor in the road surface along the gravitational direction.
An acceleration sensor, comprising:
a first circuit board on which electronic components are disposed;
the second circuit board is provided with an acceleration chip, the induction direction of the acceleration chip is along the gravity direction, one end of the second circuit board along the gravity direction is connected with the first circuit board, and a preset angle is formed between the second circuit board and the first circuit board;
and one end of the conductor is connected with the first circuit board, and the other end of the conductor is connected with the second circuit board and is used for realizing power supply and information transmission between the second circuit board and the first circuit board.
In one embodiment, the predetermined angle is 90 °.
In one embodiment, the first circuit board is provided with a jack, and the second circuit board is plugged into the jack.
In one embodiment, the second circuit board includes a first connection portion and second connection portions, two sides of the first connection portion are respectively provided with the second connection portions, the acceleration chip is disposed on the first connection portion, and each of the second connection portions is connected with the first circuit board through one of the conductors.
In one embodiment, one end of the acceleration chip along the gravity direction is flush with the first connecting portion, and the first connecting portion, the second connecting portion and the acceleration chip are simultaneously inserted into the jack.
In one embodiment, the number of the second connection parts is two, the first circuit board includes third connection parts, the third connection parts are connected with the second connection parts in a one-to-one correspondence through the electric conductors, and the distance between the two third connection parts is equal to the distance between the two second connection parts.
In one embodiment, the electrical conductor is a flexible circuit board.
In one embodiment, the first circuit board and the second circuit board are rigid circuit boards.
In one embodiment, the first circuit board and the second circuit board are connected and fixed through insulating glue or fixed through soldering.
The road monitoring device comprises a support, an encapsulation shell and an acceleration sensor, wherein the acceleration sensor is arranged in the encapsulation shell, and the encapsulation shell is fixed on the support.
According to the acceleration sensor and the road monitoring device, when the acceleration sensor is in actual use, the first circuit board can be fixed at a certain specific angle according to the preset angle between the second circuit board and the first circuit board, so that the second circuit board is parallel to the gravity direction, and the vibration state of a road can be monitored through the acceleration chip. Because the second circuit board is the angle setting of predetermineeing with first circuit board, when the second circuit board was planted the road surface along the direction of gravity, first circuit board is the angle of predetermineeing with the direction of gravity to reduced the total length of first circuit board and second circuit board along the direction of gravity, reduced the length of acceleration sensor along the direction of gravity promptly at the duty cycle of the total thickness on road surface, thereby reduced the disturbance to the road surface layer.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an acceleration sensor.
Fig. 2 is a schematic structural diagram of an acceleration sensor in an embodiment in which the first circuit board and the second circuit board are not directly connected.
Reference numerals: 10. a first circuit board; 11. a jack; 12. a connection hole; 13. a third connecting portion;
20. a second circuit board; 22. a first connection portion; 23. a second connecting portion;
30. an electric conductor.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.
Referring to fig. 1 and 2, fig. 1 shows a schematic structural diagram of an acceleration sensor according to an embodiment of the present utility model, and fig. 2 shows a schematic structural diagram of an acceleration sensor according to an embodiment of the present utility model when a first circuit board and a second circuit board are not directly connected. The acceleration sensor provided by the embodiment of the utility model comprises a first circuit board 10, a second circuit board 20 and a conductor 30, wherein an electronic element is arranged on the first circuit board 10, an acceleration chip is arranged on the second circuit board 20, the induction direction of the acceleration chip is along the gravity direction, one end of the second circuit board 20 along the gravity direction is connected with the first circuit board 10, the two ends are arranged at a preset angle, one end of the conductor 30 is connected with the first circuit board 10, and the other end of the conductor is connected with the second circuit board 20, so that power supply and information transmission between the second circuit board 20 and the first circuit board 10 are realized. The functional module comprises a power module, a control module and a communication module. The acceleration chip may be a MEMS acceleration chip.
In actual use, the first circuit board 10 can be fixed at a specific angle according to the preset angle between the second circuit board 20 and the first circuit board 10, so that the sensing direction of the acceleration chip on the second circuit board 20 is along the gravity direction, and the vibration state of the road can be monitored through the acceleration chip. Because the second circuit board 20 is arranged at a preset angle with the first circuit board 10, when the second circuit board 20 is implanted into the road surface along the gravity direction, the first circuit board 10 is arranged at a preset angle with the gravity direction, so that the total length of the first circuit board 10 and the second circuit board 20 along the gravity direction is reduced, namely the ratio of the length of the acceleration sensor along the gravity direction to the total thickness of the road surface is reduced, and the disturbance to the surface layer of the road surface is reduced.
In some embodiments, the predetermined angle is 90 °, i.e., the first circuit board 10 is disposed perpendicular to the second circuit board 20.
In actual use, the first circuit board 10 is horizontally implanted on the road surface, and at this time, the sensing direction of the acceleration chip located on the second circuit board 20 is perpendicular to the road surface, i.e. the acceleration chip is in the gravity direction. Since the first circuit board 10 is horizontally implanted into the road surface, that is, the total length of the acceleration sensor along the gravity direction is only equal to the total length of the second circuit board 20 along the gravity direction, the length of the acceleration sensor along the gravity direction occupies the minimum ratio in the total thickness of the road surface, and thus the disturbance to the surface layer of the road surface is greatly reduced.
In other embodiments, the second circuit board 20 may also be disposed obliquely to the first circuit board 10. For example, the preset angle between the second circuit board 20 and the first circuit board 10 is 60 ° to 89 °, or 91 ° to 120 °. At this time, the total length of the second circuit board 20 and the first circuit board 10 in the gravitational direction is also reduced in the ratio of the total thickness of the road surface, and thus, disturbance to the road surface layer can be reduced.
In some embodiments, the first circuit board 10 is provided with a jack 11, and the second circuit board 20 is configured to be plugged into the jack 11. The rapid mounting of the first circuit board 10 and the second circuit board 20 can be achieved.
When the first circuit board 10 is required to be perpendicular to the second circuit board 20, each hole wall of the jack 11 can be perpendicular to the surface of the first circuit board 10, namely, the direction of the second circuit board 20 can be limited through the hole wall of the jack 11, and the installation is simple and convenient. When the first circuit board 10 and the second circuit board 20 are required to tilt to other preset angles, each hole wall of the jack 11 can be arranged at a preset angle with the surface (upper surface or lower surface) of the first circuit board 10, and the second circuit board 20 is limited at the preset angle through the hole wall of the jack 11.
In other embodiments, the second circuit board is provided with a jack, and the first circuit board is used for being plugged into the jack. The first circuit board and the second circuit board can be installed quickly.
In other embodiments, the first circuit board and the second circuit board may also be connected using a spring snap. For example, a clamping hole is formed in the first circuit board, a clamping connector is arranged on the second circuit board, a spring is arranged in the clamping connector, the clamping hole compresses the spring to shrink when the clamping connector is inserted into the clamping hole, and the spring locks the clamping connector in the clamping hole through self elasticity when the clamping connector is positioned in the clamping hole, so that the first circuit board and the second circuit board can be connected quickly.
In some embodiments, the second circuit board 20 includes a first connection portion 22 and second connection portions 23, the second connection portions 23 are respectively disposed on two sides of the first connection portion 22, the acceleration chip is disposed on the first connection portion 22, and each second connection portion 23 is respectively connected to the first circuit board 10 through one electrical conductor 30.
In the present embodiment, the electrical conductors 30 electrically connect the acceleration chip to the first circuit board 10 from both sides of the acceleration chip, which is advantageous for wiring other elements in the first circuit board 10 and for reducing the surface area of the first circuit board 10, as compared to the manner in which the acceleration chip is electrically connected to the first circuit board 10 through the electrical conductors 30 from one side of the acceleration chip.
Further, one end of the acceleration chip along the gravity direction is flush with the first connecting portion 22, and the first connecting portion 22, the second connecting portion 23 and the acceleration chip are simultaneously inserted into the jack 11.
In the present embodiment, since the first connection portion 22, the second connection portion 23 and the acceleration chip are simultaneously inserted into the insertion hole 11, the acceleration chip is disposed on the first circuit board 10, and thus the cross sections of the acceleration chip and the first circuit board 10 are in a T-shaped structure. Correspondingly, the jack 11 is a T-shaped jack. In particular, the end of the acceleration chip inserted into the insertion hole 11 may be made parallel to the lower surface of the first circuit board 10, thereby facilitating the layout of the first circuit board 10 in the road surface.
Specifically, the number of the second connection portions 23 is two, the first circuit board 10 includes the third connection portions 13, the third connection portions 13 are connected to the second connection portions 23 in one-to-one correspondence through the conductors 30, and a distance between the two third connection portions 13 is equal to a distance between the two second connection portions 23.
In the present embodiment, since the third connection portions 13 and the second connection portions 23 need to be connected in one-to-one correspondence to the electric conductor 30, the distance between the two third connection portions 13 is equal to the distance between the two second connection portions 23 for convenience of the arrangement of the electric conductor 30.
In some embodiments, the electrical conductor 30 is a flexible circuit board through which the first circuit board 10 is connected to the second circuit board 20 to enable power and information transfer between the second circuit board 20 and the first circuit board 10.
In the actual production process, in order to facilitate the arrangement of the conductor 30, it is first necessary to connect the two ends of the conductor 30 with the third connection portion 13 on the first circuit board 10 and the second connection portion 23 on the second circuit board 20 respectively, and then insert the second circuit board 20 and the acceleration chip into the insertion hole 11 of the first circuit board 10, so that the conductor 30 is a flexible circuit board, which is beneficial to bending of the conductor 30.
In some embodiments, the first circuit board 10 and the second circuit board 20 are rigid circuit boards. The first circuit board 10 and the second circuit board 20 can provide certain supporting strength for the acceleration chip, and the influence on the monitoring accuracy of the acceleration chip due to the elasticity of the first circuit board 10 and the second circuit board 20 in the monitoring process is avoided.
In some embodiments, the first circuit board 10 and the second circuit board 20 are fixed by an insulating adhesive connection or soldering.
In one embodiment, the first circuit board 10 is provided with the jack 11, the first circuit board 10 is placed horizontally, the second circuit board 20 is inserted into the first circuit board 10, the angle of the second circuit board 20 is fine-tuned, and when the output data of the acceleration sensor is 1g, that is, the sensing direction of the acceleration chip is along the direction of gravity acceleration, the first circuit board 10 is fixedly connected with the second circuit board 20 through the insulating glue or tin. The connection mode is convenient for adjusting the angle between the first circuit board 10 and the second circuit board 20 in the connection process, and is convenient for enabling the induction direction of the acceleration chip to be along the gravity acceleration direction, so that the monitoring precision of the acceleration sensor is improved.
In another embodiment, the first circuit board 10 is not provided with the insertion hole 11, and the first circuit board 10 and the second circuit board 20 may be directly connected and fixed by insulating glue or soldered and fixed.
The embodiment of the utility model also provides a road monitoring device, which comprises a bracket (not shown), a packaging shell (not shown) and an acceleration sensor, wherein the acceleration sensor is arranged in the packaging shell, and the packaging shell is fixed on the bracket.
Specifically, the first circuit board 10 is provided with a connecting hole 12, and a screw passes through the connecting hole 12 on the first circuit board 10 to fix the first circuit board 10 in the packaging shell, fix the packaging shell on the bracket, and finally pour the packaging shell in the road through concrete. Wherein, encapsulation shell and support are current structure, and the description is omitted here. Because the second circuit board 20 is arranged at a preset angle with the first circuit board 10, when the second circuit board 20 is implanted into the road surface along the gravity direction, the first circuit board 10 is arranged at a preset angle with the gravity direction, so that the total length of the first circuit board 10 and the second circuit board 20 along the gravity direction is reduced, namely the ratio of the length of the acceleration sensor along the gravity direction to the total thickness of the road surface is reduced, and the disturbance to the surface layer of the road surface is reduced.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. An acceleration sensor, characterized by comprising:
a first circuit board on which a functional module is provided;
the second circuit board is provided with an acceleration chip, the induction direction of the acceleration chip is along the gravity direction, one end of the second circuit board along the gravity direction is connected with the first circuit board, and a preset angle is formed between the second circuit board and the first circuit board;
and one end of the conductor is connected with the first circuit board, and the other end of the conductor is connected with the second circuit board and is used for realizing power supply and information transmission between the second circuit board and the first circuit board.
2. Acceleration sensor according to claim 1, characterized in, that the preset angle is 90 °.
3. The acceleration sensor of claim 1, wherein the first circuit board is provided with a socket, and the second circuit board is plugged into the socket.
4. The acceleration sensor of claim 3, wherein the second circuit board includes a first connection portion and second connection portions, the second connection portions are provided on both sides of the first connection portion, respectively, the acceleration chip is provided on the first connection portion, and each of the second connection portions is connected to the first circuit board through one of the conductors, respectively.
5. The acceleration sensor of claim 4, wherein one end of the acceleration chip in the direction of gravity is flush with the first connecting portion, and the first connecting portion, the second connecting portion, and the acceleration chip are simultaneously inserted into the insertion hole.
6. The acceleration sensor of claim 4, wherein the number of the second connecting parts is two, the first circuit board includes third connecting parts, the third connecting parts are connected to the second connecting parts in one-to-one correspondence through the conductors, and a distance between the two third connecting parts is equal to a distance between the two second connecting parts.
7. The acceleration sensor of any one of claims 1-6, characterized in, that the electrical conductor is a flexible circuit board.
8. The acceleration sensor of claim 7, wherein the first and second circuit boards are rigid circuit boards.
9. The acceleration sensor of claim 8, wherein the first and second circuit boards are fixed by an insulating glue connection or soldering.
10. A road monitoring device, characterized in that the road monitoring device comprises a bracket, a packaging shell and the acceleration sensor according to any one of claims 1-9, wherein the acceleration sensor is arranged in the packaging shell, and the packaging shell is fixed on the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321602579.XU CN220057570U (en) | 2023-06-21 | 2023-06-21 | Acceleration sensor and road monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321602579.XU CN220057570U (en) | 2023-06-21 | 2023-06-21 | Acceleration sensor and road monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220057570U true CN220057570U (en) | 2023-11-21 |
Family
ID=88754702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321602579.XU Active CN220057570U (en) | 2023-06-21 | 2023-06-21 | Acceleration sensor and road monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220057570U (en) |
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2023
- 2023-06-21 CN CN202321602579.XU patent/CN220057570U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hefei Zhixingtong Intelligent Technology Co.,Ltd. Assignor: TSINGHUA University Contract record no.: X2024980001652 Denomination of utility model: Acceleration sensors and road monitoring devices Granted publication date: 20231121 License type: Common License Record date: 20240129 |
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| EE01 | Entry into force of recordation of patent licensing contract |