CN218066708U - Weighing sensor - Google Patents
Weighing sensor Download PDFInfo
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- CN218066708U CN218066708U CN202220920466.3U CN202220920466U CN218066708U CN 218066708 U CN218066708 U CN 218066708U CN 202220920466 U CN202220920466 U CN 202220920466U CN 218066708 U CN218066708 U CN 218066708U
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- signal processing
- detection unit
- processing board
- sinking groove
- stress detection
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Abstract
The utility model discloses a weighing sensor, it relates to the electric motor car field. The technical scheme is characterized by comprising a metal elastic body, wherein a stress detection unit is arranged in the metal elastic body, and a signal processing board connected with the stress detection unit is also arranged in the metal elastic body; the signal processing board comprises an analog-to-digital conversion module and a signal processing unit. The utility model discloses signal processing board and stress detection unit have been integrated to can optimize production technology.
Description
Technical Field
The utility model relates to an electric motor car field, more specifically says that it relates to a weighing sensor.
Background
The existing weighing sensor is generally characterized in that a signal processing unit is separated from a stress detection unit, so that the production operation is difficult, the one-to-one correspondence and the calibration are needed, the one-to-one correspondence is needed during installation, and otherwise, the weighing is inaccurate.
The prior Chinese patent with the publication number of CN213515946U discloses a sensor mounting structure of a weighing device of an electric vehicle, which comprises a bearing part mounted on the electric vehicle, wherein the side wall of the bearing part is provided with a sinking groove, and a strain gauge and a preprocessing signal plate electrically connected with the strain gauge are arranged in the sinking groove; and a sealing element for closing the opening of the sinking groove is arranged on the bearing element.
The pre-processed signal board in the above patent is also used only for compensating signals, and has no signal processing function.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a weighing sensor, it has integrateed signal processing board and stress detection unit to can optimize production technology.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a weighing sensor comprises a metal elastic body, wherein a stress detection unit is arranged in the metal elastic body, and a signal processing board connected with the stress detection unit is also arranged in the metal elastic body; the signal processing board comprises an analog-to-digital conversion module and a signal processing unit.
Furthermore, a first sinking groove and a second sinking groove are respectively formed in the metal elastic body, a partition plate is formed between the first sinking groove and the second sinking groove, and a threading hole is formed in the partition plate;
the stress detection unit is arranged in the first sinking groove, the signal processing board is arranged in the second sinking groove, and a wire penetrating through the threading hole is arranged between the stress detection unit and the signal processing board.
Further, the stress detection unit is arranged on the end face of the partition plate.
Furthermore, a wire outlet hole communicated with the second sinking groove is formed in the metal elastic body, and a waterproof leading-out wire connected with the signal processing board is arranged in the wire outlet hole.
Furthermore, the outer end of the wire outlet hole is provided with a waterproof fastening wire protection spring sleeved on the waterproof leading-out wire.
Further, a threaded mounting hole is formed in the metal elastic body.
Further, the stress detection unit includes a strain gauge.
Furthermore, the signal processing board further comprises a peripheral communication module.
To sum up, the utility model discloses following beneficial effect has:
1. the weighing sensor integrates the signal processing board and the stress detection unit, so that the production process can be optimized;
2. the detected signal of foil gage is connected to the signal processing board through the wire, and the signal processing board is connected the communication with the peripheral hardware through waterproof lead-out wire after with foil gage signal processing analysis, judges corresponding two-man car, ultralight judgement and overload judgement signal transmission to peripheral hardware is handled, and then can effectively protect the electric motor car of installing weighing sensor to reduce overweight potential safety hazard of super far bringing.
Drawings
FIG. 1 is a first schematic structural diagram of a load cell according to an embodiment;
FIG. 2 is a schematic diagram of a load cell according to an embodiment;
FIG. 3 is a schematic diagram of a load cell according to an embodiment;
fig. 4 is a schematic circuit diagram of a signal processing board in an embodiment.
In the figure: 1. a metal elastomer; 11. a first sink tank; 12. a second sink tank; 13. a partition plate; 131. a threading hole; 14. a wire outlet hole; 15. a threaded mounting hole; 2. a stress detection unit; 3. a signal processing board; 4. a wire; 5. a waterproof outgoing line; 6. waterproof fastening protects line spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
The embodiment is as follows:
a weighing sensor, refer to fig. 1 to 4, which comprises a metal elastic body 1, wherein a threaded mounting hole 15 is formed in the bottom end of the metal elastic body 1 in the embodiment, and the threaded mounting hole can be mounted on a shock absorber, and the shock absorber can detect the load of a whole vehicle after the whole vehicle is mounted on the shock absorber; a stress detection unit 2 is arranged in the metal elastic body 1, and a signal processing plate 3 connected with the stress detection unit 2 is also arranged in the metal elastic body 1; the signal processing board 3 comprises an analog-to-digital conversion module and a signal processing unit; the weighing sensor in the embodiment integrates the signal processing board 3 and the stress detection unit 2, and can optimize the production process.
Referring to fig. 1 to 4, specifically, in this embodiment, signal processing board 3 adopts an analog-to-digital conversion module, and has functions of collecting, filtering, amplifying and converting a weight value of a signal of stress detection unit 2, and meanwhile, signal processing board 3 further includes a peripheral communication module, and then can transmit a detection result, for example, two-person vehicle judgment, ultra-light judgment, overload judgment and the like, to an external device for processing, and then a related external device can timely make safer feedback and processing, thereby greatly reducing potential safety hazards caused by overload, and reducing damage to components of the entire vehicle.
Referring to fig. 4, specifically, the analog-to-digital conversion module filters, amplifies and converts the analog signal collected by the stress detection unit 2 into a digital signal, and transmits the digital signal to the signal processing unit (CPU) for data processing and judgment, for example, to realize two-person vehicle judgment, ultra-light judgment and overload judgment; for example, the analog-to-digital conversion module in this embodiment employs CS1237, the detection signal S +/S-generated by the stress detection unit 2 is connected to the AIN +/AIN-pin of the chip through the filter circuit composed of resistors R1, R4 and capacitors C2, C3, C4, respectively, and the OUT and CLK pins of the CS1237 chip output digital signals to the I/O and clock synchronization signals to the SCLK through resistors R2, R3, respectively.
Referring to fig. 1 to 3, specifically, in this embodiment, a first sinking groove 11 and a second sinking groove 12 are respectively formed on a metal elastic body 1, a partition plate 13 is formed between the first sinking groove 11 and the second sinking groove 12, and a threading hole 131 is formed on the partition plate 13; the stress detection unit 2 is arranged in the first sinking groove 11, the signal processing board 3 is arranged in the second sinking groove 12, and a lead 4 passing through the threading hole 131 is arranged between the stress detection unit 2 and the signal processing board 3; specifically, the stress detection unit 2 in the present embodiment includes a strain gauge provided on the end face of the partition plate 13, so that a change in load can be detected more directly, and the response speed is increased; the metal elastic body 1 is provided with a wire outlet hole 14 communicated with the second sinking groove 12, and a waterproof leading-out wire 5 connected with the signal processing plate 3 is arranged in the wire outlet hole 14; preferably, the outer end of the outlet hole 14 is provided with a waterproof fastening wire protecting spring 6 sleeved on the waterproof outlet wire 5, so that the waterproof grade can be improved, and the service life of the waterproof outlet wire 5 can be prolonged; specifically, the detected signal of foil gage is connected to signal processing board 3 through wire 4, and signal processing board 3 is connected the communication with the peripheral hardware through waterproof lead-out wire 5 after with foil gage signal processing analysis, judges corresponding two people's car, ultralight judgement and overload judgement signal transmission to peripheral hardware and handles, and then can effectively protect the electric motor car of installing weighing sensor to reduce the potential safety hazard that overweight super far brought.
Claims (6)
1. The utility model provides a weighing sensor, includes metal elastomer, be provided with stress detecting element in the metal elastomer, its characterized in that: a signal processing board connected with the stress detection unit is further arranged in the metal elastic body; the signal processing board comprises an analog-to-digital conversion module and a signal processing unit;
the metal elastic body is provided with a threaded mounting hole;
the stress detection unit comprises a strain gauge.
2. The load cell of claim 1, wherein: a first sinking groove and a second sinking groove are respectively formed in the metal elastic body, a partition plate is formed between the first sinking groove and the second sinking groove, and a threading hole is formed in the partition plate;
the stress detection unit is arranged in the first sinking groove, the signal processing board is arranged in the second sinking groove, and a wire penetrating through the threading hole is arranged between the stress detection unit and the signal processing board.
3. The load cell of claim 2, wherein: the stress detection unit is arranged on the end face of the partition plate.
4. The load cell of claim 2, wherein: and the metal elastomer is provided with a wire outlet hole communicated with the second sinking groove, and a waterproof leading-out wire connected with the signal processing board is arranged in the wire outlet hole.
5. The load cell of claim 4, wherein: and a waterproof fastening wire protection spring sleeved on the waterproof leading-out wire is arranged at the outer end of the wire outlet hole.
6. The load cell of claim 1, wherein: the signal processing board further comprises a peripheral communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220920466.3U CN218066708U (en) | 2022-04-20 | 2022-04-20 | Weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220920466.3U CN218066708U (en) | 2022-04-20 | 2022-04-20 | Weighing sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218066708U true CN218066708U (en) | 2022-12-16 |
Family
ID=84428095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220920466.3U Active CN218066708U (en) | 2022-04-20 | 2022-04-20 | Weighing sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218066708U (en) |
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2022
- 2022-04-20 CN CN202220920466.3U patent/CN218066708U/en active Active
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