CN219369794U - Acceleration sensor with vacuum adsorption structure - Google Patents
Acceleration sensor with vacuum adsorption structure Download PDFInfo
- Publication number
- CN219369794U CN219369794U CN202320330084.XU CN202320330084U CN219369794U CN 219369794 U CN219369794 U CN 219369794U CN 202320330084 U CN202320330084 U CN 202320330084U CN 219369794 U CN219369794 U CN 219369794U
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- base
- vacuum
- acceleration sensor
- vacuum chamber
- circuit board
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Abstract
The utility model relates to an acceleration sensor with a vacuum adsorption structure, which comprises a base and a circuit board assembly positioned in the base, wherein an open vacuum chamber is arranged at the bottom of the base, a pneumatic connector communicated with the vacuum chamber is further arranged on the base, a sealing structure is further arranged at the bottom of the base, and the vacuum chamber is sealed with an object to be measured through the sealing structure. By adopting the technical scheme, the acceleration sensor with the vacuum adsorption structure is convenient to install, does not damage a measured object in the installation process, and has no requirement on the surface material of the measured object.
Description
Technical Field
The utility model relates to the field of acceleration sensors, in particular to an acceleration sensor with a vacuum adsorption structure.
Background
The acceleration sensor is a sensor capable of measuring acceleration. The device is generally composed of a mass block, a damper, an elastic element, a sensitive element, an adaptive circuit and the like. During acceleration, the sensor obtains an acceleration value by measuring the inertial force borne by the mass block and utilizing Newton's second law. Common acceleration sensors include capacitive, inductive, strain, piezoresistive, piezoelectric, etc., according to the sensor sensing element.
These conventional mounting methods of the acceleration sensor to the vibrator have the drawbacks: 1. the installation time of the sensor is long; 2. the surface of the vibrator needs to be destroyed in the installation by the bolts, so that the surface of the object to be tested is quite inconvenient when the surface is made of an appearance surface, glass or resin material (common scenes include vibration test of a mobile phone screen and vibration test of an automobile touch panel); 3. the installation of a part of the acceleration sensor requires the material of the vibrator (for example, the vibrator installed by using a magnet needs to be made of a magnetic material). Therefore, an acceleration sensor is needed, which is convenient to install, does not damage the surface of the measured object in the installation process, and has no requirement on the surface material of the measured object.
Disclosure of Invention
The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides the acceleration sensor with the vacuum adsorption structure, which is convenient to install, does not damage the surface of the measured object in the installation process, and has no requirement on the surface material of the measured object.
The technical scheme of the utility model is as follows: the utility model provides an acceleration sensor of area vacuum adsorption structure, includes the base and is located the circuit board assembly of base, the base bottom is equipped with open-ended vacuum chamber, still be equipped with the pneumatic connector that switches on with vacuum chamber on the base, the base bottom still is equipped with seal structure, and vacuum chamber passes through seal structure and is surveyed the object and realize sealedly.
By adopting the technical scheme, the acceleration sensor is mounted on the surface of the measured object in a vacuum adsorption mode, so that the mounting is more convenient, the surface material of the vibrator is not required, and the surface of the vibrator is not damaged, so that the use is convenient.
The utility model is further provided with: the vacuum chamber is in a truncated cone shape.
By adopting the above further arrangement, the vacuum chamber in the base is in the shape of a circular truncated cone, so that the volume in the vacuum chamber is smaller, the reserved air is less, the air in the vacuum chamber is extracted more rapidly during installation, the base is more easily adsorbed on an object to be detected, and the adsorption is firmer.
The utility model is further provided with: the base is provided with a bottom plate, an outer plate and an inner plate, wherein the outer plate and the inner plate are positioned on the bottom plate, the outer plate is positioned on the outer side of the inner plate, an air port for air circulation in the vacuum chamber is formed in the bottom plate, an air channel is formed around the air port by the inner plate, one end of the air channel is communicated with the vacuum chamber, the other end of the air channel is communicated with the pneumatic connector, a storage chamber is formed in the bottom plate, the inner plate and the outer plate, and the circuit board assembly is positioned in the storage chamber.
By adopting the above further arrangement, the circuit board assembly is separated from the vacuum chamber through the object placing chamber, so that the circuit board assembly is not influenced when the vacuum chamber is vacuumized by the air pump, and the circuit board assembly is protected.
Still further, the present utility model provides: the base is provided with a protective cover corresponding to the storage chamber, and the protective cover is detachably arranged on the storage chamber.
Preferably: and a signal port for transmitting information of the circuit board assembly is formed in the protective cover.
By adopting the arrangement, the protective cover is arranged on the storage cavity, the dustproof and waterproof protection effect is achieved in the storage cavity, the service life of the circuit board assembly is prolonged, meanwhile, the signal port formed in the protective cover is protected, the external signal line is conveniently connected with the circuit board assembly, and the circuit board assembly is more convenient to transmit and read detected information.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;
FIG. 3 is a schematic top view of the present utility model;
FIG. 4 is a schematic cross-sectional view of the top view of FIG. 3 illustrating a cross-section A-A of the structure according to the present utility model.
Description of the embodiments
The technical solutions of the present embodiment will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indications (such as up, down, front, and rear … …) in the description of the present utility model are merely for explaining the relative positional relationship, movement, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure.
As shown in fig. 1-4, the acceleration sensor with the vacuum adsorption structure comprises a base 1 and a circuit board assembly 2 positioned in the base 1, wherein the circuit board assembly 2 comprises an integrated MEMS acceleration sensor, other components and circuits and is responsible for signal acquisition, processing and transmission, an open vacuum chamber 11 is arranged at the bottom of the base 1, a pneumatic connector 12 communicated with the vacuum chamber 11 is further arranged on the base 1, air in the vacuum chamber 11 can circulate in the pneumatic connector 12, a sealing structure 13 is further arranged at the bottom of the base 1, the vacuum chamber 11 is sealed with an object to be measured through the sealing structure 13, and when the acceleration sensor is used, the sealing structure 13 is positioned between the base 1 and the object to be measured, so that the sealing effect of the vacuum chamber 11 is ensured, and the acceleration sensor is firmly adsorbed on the object to be measured, wherein the sealing structure 13 can be a sealing ring or other sealing members.
When the air-pressure sensor is used, the pneumatic connector 12 is connected with the air pump, the circuit board assembly 2 is connected with the communication wiring harness, then the bottom of the base 1 of the air-pressure sensor is placed on the surface of a measured object, air in the vacuum chamber 11 is pumped away into vacuum through the air pump, under the action of air pressure, the bottom of the base 1 of the air-pressure sensor is firmly adsorbed on the surface of the measured object, the measured object is started, and data detected by all detection units on the circuit board assembly 2 are transmitted to the data reader through the communication wiring harness, so that the air-pressure sensor is convenient to observe. When the detection is completed, the acceleration sensor and the detected object can be disconnected by only closing the air extracting pump to enable air to flow back into the vacuum chamber 11, and the acceleration sensor is taken down.
The vacuum chamber 11 is in a round table shape, so that the volume in the vacuum chamber 11 is smaller, the reserved air is less, the air in the vacuum chamber 11 is extracted more quickly during installation, the base 1 is more easily adsorbed on an object to be detected, and the adsorption is firmer.
In this embodiment, the base 1 is provided with the bottom plate 4, the outer plate 41 and the inner plate 42 located on the bottom plate 4, the outer plate 41 is located at the outer side of the inner plate 42, the bottom plate 4 is provided with an air port 43 through which air in the vacuum chamber 11 flows, the inner plate 42 surrounds the air port 43 to form an air channel 5, one end of the air channel 5 is communicated with the vacuum chamber 11, the other end of the air channel is communicated with the pneumatic connector 12, when the vacuum is pumped, air in the vacuum chamber 11 flows out through the air channel 5 and then the pneumatic connector 12 to form vacuum, the bottom plate 4, the inner plate 41 and the outer plate 42 are provided with the placement chamber 6, the circuit board assembly 2 is located in the placement chamber 6, the inner plate 42 isolates the vacuum chamber 11 from the placement chamber 6, so that the use of the circuit board assembly 2 in the placement chamber 6 cannot be influenced when the vacuum chamber 11 is pumped, and the detection data of each detection unit on the circuit board assembly 2 are more accurate.
In this embodiment, the protection cover 14 is disposed on the base 1 corresponding to the storage chamber 6, so as to protect the circuit board assembly 2 in the storage chamber 6, prolong the service life of the circuit board assembly 2, and the protection cover 14 is detachably disposed on the storage chamber 6, so that the circuit board assembly 2 is convenient to be inspected, maintained or replaced; the protective cover 14 is provided with a signal port 141 for the circuit board assembly 2 to transmit information, and the communication harness is conveniently connected with the circuit board assembly 2 through the signal port 141 to transmit the data detected by the circuit board assembly 2 to the data reader.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.
Claims (5)
1. The utility model provides a take acceleration sensor of vacuum adsorption structure, includes base and is located the circuit board assembly in the base, its characterized in that: the base bottom is equipped with open-ended vacuum chamber, still be equipped with on the base with vacuum chamber's pneumatic joint, the base bottom still is equipped with seal structure, vacuum chamber passes through seal structure and is surveyed the object and realize sealedly.
2. The acceleration sensor with vacuum-adsorbing structure according to claim 1, characterized in that: the vacuum chamber is in a truncated cone shape.
3. An acceleration sensor with a vacuum-adsorbing structure according to claim 1 or 2, characterized in that: the base is provided with a bottom plate, an outer plate and an inner plate, wherein the outer plate and the inner plate are positioned on the bottom plate, the outer plate is positioned on the outer side of the inner plate, an air port for air circulation in the vacuum chamber is formed in the bottom plate, an air channel is formed around the air port by the inner plate, one end of the air channel is communicated with the vacuum chamber, the other end of the air channel is communicated with the pneumatic connector, a storage chamber is formed in the bottom plate, the inner plate and the outer plate, and the circuit board assembly is positioned in the storage chamber.
4. An acceleration sensor with a vacuum-adsorbing structure according to claim 3, characterized in that: the base is provided with a protective cover corresponding to the storage chamber, and the protective cover is detachably arranged on the storage chamber.
5. The acceleration sensor with vacuum-adsorbing structure according to claim 4, characterized in that: and a signal port for transmitting information of the circuit board assembly is formed in the protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320330084.XU CN219369794U (en) | 2023-02-17 | 2023-02-17 | Acceleration sensor with vacuum adsorption structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320330084.XU CN219369794U (en) | 2023-02-17 | 2023-02-17 | Acceleration sensor with vacuum adsorption structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219369794U true CN219369794U (en) | 2023-07-18 |
Family
ID=87116957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320330084.XU Active CN219369794U (en) | 2023-02-17 | 2023-02-17 | Acceleration sensor with vacuum adsorption structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219369794U (en) |
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2023
- 2023-02-17 CN CN202320330084.XU patent/CN219369794U/en active Active
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