CN211335457U - Antenna assembly for tire pressure sensor and tire pressure sensor with same - Google Patents
Antenna assembly for tire pressure sensor and tire pressure sensor with same Download PDFInfo
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- CN211335457U CN211335457U CN201921663276.2U CN201921663276U CN211335457U CN 211335457 U CN211335457 U CN 211335457U CN 201921663276 U CN201921663276 U CN 201921663276U CN 211335457 U CN211335457 U CN 211335457U
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- pressure sensor
- tire pressure
- circuit board
- antenna
- vertical section
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Abstract
The utility model discloses an antenna module for tire pressure sensor and have its tire pressure sensor, wherein, this antenna module for tire pressure sensor includes circuit board and antenna, and the antenna is established one side of circuit board, just at least one circle is become to the antenna coiling. According to the utility model provides an antenna module for tire pressure sensor, antenna are located one side of circuit board, and its simple structure is compact, and occupation space is little to turn around making, can satisfy the emission performance requirement.
Description
Technical Field
The utility model relates to a tire pressure detects technical field, especially relates to an antenna module for tire pressure sensor and has its tire pressure sensor.
Background
the tpms sensor is a sensor that uses a tire pressure monitoring system (tpms) to monitor the tire pressure in real time. The sensor comprises a bridge type electronic air pressure sensing device for sensing air pressure, and the sensor converts an air pressure signal into an electric signal and transmits the signal through a wireless transmitting device so as to ensure the driving safety.
In the tire pressure sensor, the performance of the antenna of the wireless transmitting device directly affects the quality of data transmission, which is an important factor for improving the transmitting power of the tire pressure sensor. Since the tire pressure sensor is mounted in the tire and is affected by the vehicle body, vehicle movement, etc. on performance, the antenna of the tire pressure sensor must be designed in a compact size and to meet the transmission performance requirements.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the present invention is to provide an antenna assembly for a tire pressure sensor.
Another object of the present invention is to provide a tire pressure sensor.
To achieve the above object, on the one hand, according to the utility model discloses an antenna module for tire pressure sensor includes:
a circuit board;
the antenna is arranged on one side of the circuit board and is wound into at least one turn.
According to the utility model provides an antenna module for tire pressure sensor, antenna are located one side of circuit board, and its simple structure is compact, and occupation space is little to turn around making, can satisfy the emission performance requirement.
In addition, according to the utility model discloses antenna module for tire pressure sensor can also have following additional technical characteristics:
according to an embodiment of the invention, the antenna is wound into two turns.
According to an embodiment of the present invention, a plane of each turn of the antenna is perpendicular to the circuit board.
According to an embodiment of the present invention, the antenna is located on a first surface of the circuit board, and when the tire pressure sensor is mounted on the vehicle tire, the first surface faces the inner wall of the vehicle tire.
According to an embodiment of the present invention, the antenna includes a first portion, a second portion, and a third portion, the first portion and the second portion are erected above the first surface, and the third portion extends along an edge of the circuit board on the first surface and is connected between the first portion and the second portion.
According to an embodiment of the invention, the first part comprises:
the first vertical section is positioned on one side of the circuit board in the width direction;
a second vertical section located on the other side of the circuit board in the width direction;
a first horizontal segment located above the first surface and connected between the first vertical segment and the second vertical segment, the first surface being horizontally disposed.
According to an embodiment of the invention, the second part comprises:
a third vertical section located on the one side in the width direction on the circuit board;
a fourth vertical section located on the other side of the circuit board in the width direction;
a second horizontal segment located above the first surface and connected between the third vertical segment and the fourth vertical segment.
According to an embodiment of the invention, the third portion is connected between the first vertical section and the fourth vertical section.
According to an embodiment of the invention, the third vertical section is located at a side of the first vertical section remote from the third portion;
the second horizontal section comprises a first subsection and a second subsection, the first subsection is connected with the fourth vertical section and is parallel to the first horizontal section, the second subsection is connected between the first subsection and the third vertical section, and the second subsection is respectively vertical to the first subsection and the third vertical section.
According to an embodiment of the present invention, an end of the first sub-section connected to the fourth vertical section has a corner portion bent toward the inner side of the circuit board.
According to an embodiment of the present invention, the first horizontal segment and the second horizontal segment are at the same horizontal plane;
one end of the first vertical section, which is connected with the first horizontal section, is bent to form a bent part, and the bent part is positioned below the horizontal plane.
According to the utility model discloses an embodiment, the third part is located the length direction's of circuit board one end, just the one end of third part with the vertical section of fourth is connected, the other end of third part is followed earlier the width direction of circuit board extends the back, extends and is connected to along the length direction of circuit board again first vertical section.
According to an embodiment of the present invention, the antenna is formed as a rib structure having a rectangular cross section.
On the other hand, according to the utility model discloses tire pressure sensor has the antenna module for tire pressure sensor as above.
According to the utility model provides a tire pressure sensor has above-mentioned antenna module, and the antenna is located one side of circuit board, and its simple structure is compact, and occupation space is little to turn around making, can satisfy the emission performance requirement.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a viewing angle of an antenna assembly for a tire pressure sensor according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another view angle of the antenna assembly for a tire pressure sensor according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a tire pressure sensor according to an embodiment of the present invention;
fig. 4 is an exploded view of a tire pressure sensor according to an embodiment of the present invention.
Reference numerals:
a circuit board 10;
an antenna 20;
a first portion 201;
a first vertical section 2011;
a bent portion 2011 a;
a second vertical section 2012;
a first horizontal segment 2013;
a second portion 202;
a third vertical section 2021;
a fourth vertical section 2022;
a first subsection 2023 a;
a second subsection 2023 b;
a corner section 2023 c;
a third portion 203;
a sensor body 30;
a valve 40.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", and the like, indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device 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 present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The antenna assembly for a tire pressure sensor and the tire pressure sensor according to the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 2, an antenna assembly for a tire pressure sensor according to an embodiment of the present invention includes a circuit board 10 and an antenna 20, wherein the antenna 20 is disposed on one side of the circuit board 10, and the antenna 20 is wound into at least one turn.
According to the utility model provides an antenna module for tire pressure sensor, antenna 20 are located one side of circuit board 10, and its simple structure is compact, and occupation space is little to turn around, can satisfy the emission performance requirement.
Preferably, the antenna 20 is wound into two turns, so that the radiation efficiency of the antenna 20 can be improved, and the matching of the two frequency bands of 434MHz and 315MHz can be compatible.
Advantageously, each turn of the antenna 20 is perpendicular to the circuit board 10, and the antenna 20 can generate a mirror effect when approaching the ground, thereby improving the radiation performance of the antenna 20 and the reliability of radio frequency transmission.
To facilitate the mounting and application of the antenna assembly, the antenna 20 is located on a first surface of the circuit board 10 that faces the inner tire wall of the vehicle tire when the tire pressure sensor is mounted to the vehicle tire. That is, the first surface of the circuit board 10 refers to a surface of the circuit board 10 facing an inner wall of the tire when it is applied to the tire pressure sensor and mounted to the tire of the vehicle, and thus, by providing the antenna 20 on the first surface of the circuit board 10, the antenna 20 may be made to protrude toward the inner wall of the tire, thereby facilitating the mounting of the tire pressure sensor.
In one embodiment of the present invention, the antenna 20 includes a first portion 201, a second portion 202, and a third portion 203, the first portion 201 and the second portion 202 are disposed above the first surface, and the third portion 203 extends along the edge of the circuit board 10 on the first surface and is connected between the first portion 201 and the second portion 202.
Advantageously, the first portion 201 and the second portion 202 are perpendicular to the circuit board 10 when the first portion 201 and the second portion 202 are mounted on the circuit board 10.
In this embodiment, on one hand, the first portion 201 and the second portion 202 of the antenna 20 are erected above the first surface, and may form a certain angle (for example, 90 °) with the circuit board 10, so that the antenna 20 may generate a mirror effect when approaching the ground, thereby improving the radiation performance of the antenna 20 and the reliability of the radio frequency transmission; on the other hand, the antenna 20 comprises a first portion 201, a second portion 202 and a third portion 203, the third portion 203 extends along the edge of the circuit board 10 on the first surface and is connected between the first portion 201 and the second portion 202, so that the antenna 20 is longer in unfolded length, meanwhile, the inductance is increased, the radiation efficiency of the antenna 20 is improved, the antenna is beneficial to being compatible with matching of two frequency bands of 434MHz and 315MHz, double-resonance operation is generated, and the type of the vehicle can be more widely adapted.
Referring to fig. 1 to 2, in an embodiment of the present invention, the first portion 201 includes a first vertical section 2011, a second vertical section 2012 and a first horizontal section 2013, wherein the first vertical section 2011 is located on one side of the width direction on the circuit board 10. The second vertical section 2012 is located on the other side of the circuit board 10 in the width direction. A first horizontal segment 2013 is located above the first surface and is connected between the first vertical segment 2011 and a second vertical segment 2012, the first surface being horizontally disposed.
That is, the first vertical section 2011 and the second vertical section 2012 are disposed opposite to each other in the width direction of the circuit board 10, the lower ends of the first vertical section 2011 and the second vertical end are connected to the circuit board 10, the first vertical section 2011 and the second vertical section 2012 are perpendicular to the circuit board 10, the first horizontal section 2013 is located at a height position of one end above the circuit board 10, one end of the first horizontal section 2013 is connected to the upper end of the first vertical section 2011, and the other end of the first horizontal section 2013 is connected to the upper end of the second vertical section 2012, so the first portion 201 is formed into a substantially U-shaped structure.
In this embodiment, the first portion 201 has the above-mentioned U-shaped structure, which not only can make the length of the first portion 201 as long as possible, increase the inductance, and improve the radiation efficiency of the antenna 20, but also can make the first portion 201 erect above the circuit board 10, and does not interfere with the arrangement of other electronic components on the circuit board 10, thereby saving space. In addition, the plane formed by the first vertical section 2011, the second vertical section 2012 and the first horizontal section 2013 is perpendicular to the ground, so that the antenna 20 can generate a mirror image effect when approaching the ground, and the radiation performance and the radio frequency transmission performance of the antenna 20 are better.
The second portion 202 includes a third vertical section 2021, a fourth vertical section 2022 and a second horizontal section, wherein the third vertical section 2021 is located on the one side of the circuit board 10 in the width direction. The fourth vertical section 2022 is located on the other side in the width direction on the circuit board 10. A second horizontal section is located above the first surface and is connected between the third vertical section 2021 and the fourth vertical section 2022. The third portion 203 is connected between said first 2011 and fourth 2022 vertical sections.
That is, the third vertical section 2021 and the fourth vertical section 2022 are respectively disposed at two sides of the width direction of the circuit board 10, the lower ends of the third vertical section 2021 and the fourth vertical end are connected to the circuit board 10, the third vertical section 2021 and the fourth vertical section 2022 are perpendicular to the circuit board 10, the second horizontal section is located at a height position of one end above the circuit board 10, one end of the second horizontal section is connected to the upper end of the third vertical section 2021, and the other end of the second horizontal section is connected to the upper end of the fourth vertical section 2022, so the second portion 302 is formed into a structure in which two planes are substantially perpendicular to each other.
In this embodiment, the second portion 202 has the above structure, so that the length of the second portion 202 is as long as possible, the inductance is increased, and the radiation efficiency of the antenna 20 is improved, and the second portion 202 is erected above the circuit board 10 without interfering with the arrangement of other electronic components on the circuit board 10, thereby saving space. In addition, the plane formed by the third vertical section 2021, the fourth vertical section 2022 and the second horizontal section is perpendicular to the ground, so that the antenna 20 can generate a mirror image effect when approaching the ground, and the radiation performance and the radio frequency transmission performance of the antenna 20 are better. Moreover, the first vertical section 2011, the second vertical section 2012, the first horizontal section 2013, the third vertical section 2021, the fourth vertical section 2022 and the second horizontal section act together, so that the antenna 20 is compatible with two frequency bands of 434MHz and 315 MHz.
Advantageously, a third vertical segment 2021 is located on the side of said first vertical segment 2011 remote from said third portion 203. The second horizontal section comprises a first subsection 2023a and a second subsection 2023b, the first subsection 2023a is connected with the fourth vertical section 2022 and is parallel to the first horizontal section 2013, the second subsection 2023b is connected between the first subsection 2023a and the third vertical section 2021, and the second subsection 2023b is perpendicular to the first subsection 2023a and the third vertical section 2021 respectively.
That is, the third vertical section 2021 and the fourth vertical section 2022 are disposed in a staggered manner in the width direction of the circuit board 10, and this staggered manner can facilitate the installation of the third vertical section 2021 and avoid structural interference. The second horizontal segment is formed into an L-shaped structure formed by the first sub-segment 2023a and the second sub-segment 2023b, the second horizontal segment of the L-shaped structure can be used to connect the third vertical segment 2021 and the fourth vertical segment 2022 which are dislocated, and the length of the second horizontal segment of the L-shaped structure is longer, so that the radiation performance of the antenna 20 is better.
Advantageously, the end of the first sub-section 2023a connected to the fourth vertical section 2022 has a corner portion 2023c bent toward the inside of the circuit board 10, that is, the first sub-section 2023a is connected to the upper end of the fourth vertical section 2022 through the corner portion 2023c, and in a specific application, when the antenna assembly is installed in a housing of a tire pressure sensor, the corner portion 2023c may play a role in positioning, which is convenient for installation and fixation.
Advantageously, the first horizontal segment 2013 and the second horizontal segment are at the same level. One end of the first vertical section 2011 connected with the first horizontal section 2013 is bent to form a bent part 2011a, and the bent part 2011a is located below the horizontal plane, so that the second subsection 2023b of the second horizontal section extends towards the third vertical section 2021 and is connected with the third vertical section 2021 conveniently, and the first vertical section 2011 is prevented from interfering with the second subsection 2023b of the second horizontal section. In addition, the first horizontal section 2013 and the second horizontal section are located on the same horizontal plane, so that the structure is simple and compact, and the installation of the tire pressure sensor is convenient.
Referring to fig. 1, in an embodiment of the present invention, the third portion 203 includes one end located in the length direction of the circuit board 10, and one end of the third portion 203 is connected to the fourth vertical section 2022, and the other end of the third portion 203 extends along the width direction of the circuit board 10 first, then extends along the length direction of the circuit board 10 and is connected to the first vertical section 2011.
In this way, the antenna 20 can be made to be entirely close to one end of the circuit board 10, and the area occupied by the third portion 203 on the circuit board 10 is smaller, so that the structure is simplified and the installation is convenient.
Advantageously, the antenna 20 is formed into a rib structure with a rectangular cross section, and the rib structure is adopted, so that the forming size precision is high, the self-resonant frequency is stable, the conductor resistance loss is less, the stable and reliable performance of the tire pressure sensor is ensured, and the batch consistency is good.
Referring to fig. 3 to 4, according to the tire pressure sensor of the embodiment of the present invention, the tire pressure sensor includes a sensor body 30, a valve nozzle 40 and the antenna assembly for the tire pressure sensor as described above, the sensor body 30 is connected to the valve nozzle 40, and the antenna assembly for the tire pressure sensor is disposed in the sensor body 30.
It is understood that other configurations and operation principles of the tire pressure sensor in the present embodiment are known in the art, are well known in the art, and are not described in detail herein.
According to the utility model provides a tire pressure sensor has above-mentioned antenna module, and antenna 20 is located one side of circuit board 10, and its simple structure is compact, and occupation space is little to turn around, can satisfy the emission performance requirement.
In addition, on one hand, the first portion 201 and the second portion 202 of the antenna 20 are erected above the first surface, and may form a certain angle (for example, 90 °) with the circuit board 10, so that the antenna 20 may generate a mirror effect when approaching the ground, thereby improving the radiation performance of the antenna 20 and the reliability of the radio frequency transmission; on the other hand, the antenna 20 comprises a first portion 201, a second portion 202 and a third portion 203, the third portion 203 extends along the edge of the circuit board 10 on the first surface and is connected between the first portion 201 and the second portion 202, so that the antenna 20 is longer in unfolded length, meanwhile, the inductance is increased, the radiation efficiency of the antenna 20 is improved, the antenna is beneficial to being compatible with matching of two frequency bands of 434MHz and 315MHz, double-resonance operation is generated, and the type of the vehicle can be more widely adapted.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (14)
1. An antenna assembly for a tire pressure sensor, comprising:
a circuit board;
the antenna is arranged on one side of the circuit board and is wound into at least one turn.
2. The antenna assembly for a tire pressure sensor according to claim 1, wherein the antenna is wound into two turns.
3. The antenna assembly for a tire pressure sensor of claim 1, wherein each turn of said antenna is in a plane perpendicular to said circuit board.
4. The antenna assembly for a tire pressure sensor of claim 1, wherein the antenna is located on a first surface of the circuit board, the first surface facing an inner tire wall of a vehicle tire when the tire pressure sensor is mounted to the vehicle tire.
5. The antenna assembly for a tire pressure sensor according to claim 4, wherein the antenna includes a first portion, a second portion, and a third portion, the first and second portions being bridged over the first surface, the third portion extending along an edge of the circuit board on the first surface and being connected between the first and second portions.
6. The antenna assembly for a tire pressure sensor according to claim 5, wherein the first portion includes:
the first vertical section is positioned on one side of the circuit board in the width direction;
a second vertical section located on the other side of the circuit board in the width direction;
a first horizontal segment located above the first surface and connected between the first vertical segment and the second vertical segment, the first surface being horizontally disposed.
7. The antenna assembly for a tire pressure sensor according to claim 6, wherein the second portion includes:
a third vertical section located on the one side in the width direction on the circuit board;
a fourth vertical section located on the other side of the circuit board in the width direction;
a second horizontal segment located above the first surface and connected between the third vertical segment and the fourth vertical segment.
8. The antenna assembly for a tire pressure sensor of claim 7, wherein the third portion is connected between the first vertical segment and a fourth vertical segment.
9. The antenna assembly for a tire pressure sensor according to claim 7, wherein the third vertical segment is located on a side of the first vertical segment remote from the third portion;
the second horizontal section comprises a first subsection and a second subsection, the first subsection is connected with the fourth vertical section and is parallel to the first horizontal section, the second subsection is connected between the first subsection and the third vertical section, and the second subsection is respectively vertical to the first subsection and the third vertical section.
10. The antenna assembly of claim 9, wherein an end of the first sub-segment connected to the fourth vertical segment has a corner portion bent inward of the circuit board.
11. The antenna assembly for a tire pressure sensor according to claim 7, wherein the first horizontal section and the second horizontal section are at the same horizontal plane;
one end of the first vertical section, which is connected with the first horizontal section, is bent to form a bent part, and the bent part is positioned below the horizontal plane.
12. The antenna assembly for a tire pressure sensor according to claim 7 or 8, wherein the third portion is located at one end in the length direction of the circuit board, and one end of the third portion is connected to the fourth vertical section, and the other end of the third portion extends along the width direction of the circuit board first, then extends along the length direction of the circuit board and is connected to the first vertical section.
13. The antenna assembly for a tire pressure sensor according to claim 1, wherein the antenna is formed in a rib structure having a rectangular cross section.
14. A tire pressure sensor having the antenna assembly for a tire pressure sensor according to any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921663276.2U CN211335457U (en) | 2019-09-30 | 2019-09-30 | Antenna assembly for tire pressure sensor and tire pressure sensor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921663276.2U CN211335457U (en) | 2019-09-30 | 2019-09-30 | Antenna assembly for tire pressure sensor and tire pressure sensor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211335457U true CN211335457U (en) | 2020-08-25 |
Family
ID=72092561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921663276.2U Active CN211335457U (en) | 2019-09-30 | 2019-09-30 | Antenna assembly for tire pressure sensor and tire pressure sensor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211335457U (en) |
-
2019
- 2019-09-30 CN CN201921663276.2U patent/CN211335457U/en active Active
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Effective date of registration: 20210602 Address after: 518000 1701-1708, 1801-1806, block D, building 1, Chuangzhi Yuncheng bid section 1, Liuxian Avenue, Xili community, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Yunjia Intelligent Technology Co.,Ltd. Address before: 518000 Yue Meilin Central Plaza, Kang Road, Futian District, Shenzhen City, Guangdong Province (North District), 2nd floor 204, 205, 206 Patentee before: SHENZHEN XTOOLTECH Co.,Ltd. |
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