CN219758289U

CN219758289U - IEPE acceleration sensor

Info

Publication number: CN219758289U
Application number: CN202320175695.1U
Authority: CN
Inventors: 韩刚
Original assignee: Shanghai Fuqiu Technology Co ltd
Current assignee: Shanghai Fuqiu Technology Co ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-09-26
Anticipated expiration: 2033-02-06

Abstract

The utility model discloses an IEPE acceleration sensor which comprises a first shell, a second shell, a first rubber pad, a second rubber pad and a third rubber pad, wherein a sliding rod is fixedly connected inside the first shell, the bottom end of the outer wall of the sliding rod is slidably connected with a tabletting plate, the first rubber pad is embedded and connected between the bottom end of the tabletting plate and the bottom end inside the first shell, a supporting plate is fixedly connected inside the second shell, the outer wall of the supporting plate is fixedly connected with a control board through a fixing bolt, the second rubber pad is embedded and connected between the supporting plate and the control board, and the third rubber pad is fixedly connected between the first shell and the second shell. Through set up first rubber pad between piezoelectric plate bottom and first casing contact department, be convenient for when the mass extrusion piezoelectric plate, buffering extrusion atress improves life, first casing outer wall fixed connection second casing.

Description

IEPE acceleration sensor

Technical Field

The utility model relates to the field of acceleration sensors, in particular to an IEPE acceleration sensor.

Background

IEPE refers to an acceleration sensor that is self-powered with a power amplifier or voltage amplifier. IEPE is an abbreviation for piezoelectric integrated circuit. Because the amount of electricity generated by the acceleration sensor is small, the electrical signal generated by the sensor is susceptible to noise interference, requiring sensitive electronics for amplification and signal conditioning. The IEPE incorporates sensitive electronics as close as possible to the sensor to ensure better noise immunity and easier packaging.

The existing IEPE acceleration sensor lacks between inside extruded piezoelectric plate and the casing and slows down friction device, leads to inside piezoelectric plate and casing friction great, causes life to reduce, and lacks the shock attenuation cushioning effect to the control panel, leads to the control panel to vibrate along with acceleration sensor's vibrations, leads to the control panel to damage easily. Therefore, IEPE acceleration sensors have been proposed for the above-mentioned problems.

Disclosure of Invention

The IEPE acceleration sensor is used for solving the problems that in the prior art, a friction reducing device is lack between a piezoelectric plate extruded inside the IEPE acceleration sensor and a shell, so that the friction between the piezoelectric plate and the shell is large, the service life is reduced, the vibration reducing and buffering effects on a control board are lacked, the control board vibrates along with vibration of the acceleration sensor, and the control board is easy to damage.

According to one aspect of the utility model, an IEPE acceleration sensor is provided, which comprises a first shell, a second shell, a first rubber pad, a second rubber pad and a third rubber pad, wherein a sliding rod is fixedly connected inside the first shell, the bottom end of the outer wall of the sliding rod is slidably connected with a tabletting plate, the first rubber pad is embedded and connected between the bottom end of the tabletting plate and the bottom end inside the first shell, the second shell is fixedly connected with a supporting plate inside the second shell, the outer wall of the supporting plate is fixedly connected with a control plate through a fixing bolt, the second rubber pad is embedded and connected between the supporting plate and the control plate, and the third rubber pad is fixedly connected between the first shell and the second shell.

Further, the outer wall of the sliding rod is connected with the metal plate and the sliding sleeve in a sliding mode, and the outer wall of the sliding sleeve is fixedly connected with the mass block.

Further, the connecting blocks are fixedly connected to two sides of the mass block respectively, and the telescopic rod is fixedly connected between the top end of the connecting block and the top end inside the first shell.

Further, a spring is fixedly connected between one end of the telescopic rod and the top end of the first shell, and the spring is connected with the telescopic rod in a surrounding mode.

Further, metal piece one end fixed connection connecting wire, the inside fixed connection base of first casing, base one end fixed connection connecting wire, connecting wire one end fixed connection control panel.

Further, the outer wall of the control panel is fixedly connected with the controller, and the outer wall of the control panel is fixedly connected with an extension line.

According to the embodiment of the utility model, the first shell, the second shell, the first rubber pad, the second rubber pad and the third rubber pad are adopted, so that the problem that the service life is reduced due to the fact that a friction reducing device is lack between a piezoelectric sheet extruded inside the IEPE acceleration sensor and the shell, the piezoelectric sheet is large in friction with the shell, the service life is reduced due to the fact that the vibration reducing buffer effect on a control panel is lacked, the control panel vibrates along with vibration of the acceleration sensor, and the control panel is easy to damage is solved, and the effect that the first rubber pad is arranged between the bottom end of the piezoelectric plate and the contact position of the first shell, so that when the piezoelectric plate is extruded by a mass block, extrusion stress is buffered, and the service life is prolonged is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic overall perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the overall internal structure of an embodiment of the present utility model;

fig. 3 is a schematic top view of an embodiment of the present utility model.

In the figure: 1. a first housing; 2. a spring; 3. a slide bar; 4. a sliding sleeve; 5. a telescopic rod; 6. a connecting block; 7. a mass block; 8. a piezoelectric sheet; 9. a metal block; 10. a base; 11. a first rubber pad; 12. a second housing; 13. a control board; 14. a controller; 15. a connecting wire; 16. an extension line; 17. a fixing bolt; 18. a second rubber pad; 19. a support plate; 20. and a third rubber pad.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. 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.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1-3, the IEPE acceleration sensor includes a first housing 1, a second housing 12, a first rubber pad 11, a second rubber pad and a third rubber pad 20, wherein a sliding rod 3 is fixedly connected inside the first housing 1, the bottom end of the outer wall of the sliding rod 3 is slidably connected with a pressing plate, the bottom end of the pressing plate is embedded into and connected with the first rubber pad 11 between the bottom end of the first housing 1, the inside of the second housing 12 is fixedly connected with a supporting plate 19, the outer wall of the supporting plate 19 is fixedly connected with a control board 13 through a fixing bolt 17, a second rubber pad 18 is embedded into and connected between the supporting plate 19 and the control board 13, a third rubber pad 20 is fixedly connected between the first housing 1 and the second housing 12, and the first rubber pad 11 is arranged between the contact position of the bottom end of the piezoelectric plate and the first housing 1, so that when the piezoelectric plate is extruded by a mass block 7, the extrusion stress is buffered, and the service life is prolonged, and the outer wall of the first housing 1 is fixedly connected with the second housing 12;

the utility model discloses a piezoelectric device, including slide bar 3, slide bar 3 outer wall sliding connection metal sheet and sliding sleeve 4, sliding sleeve 4 outer wall fixed connection quality piece 7, the promotion piezoelectric plate 8 of being convenient for remove, quality piece 7 both sides are fixed connection connecting block 6 respectively, fixed connection telescopic link 5 between connecting block 6 top and the inside top of first casing 1, fixed connection spring 2 between telescopic link 5 one end and the first casing 1 top, spring 2 encircles and connects telescopic link 5, metal piece 9 one end fixed connection connecting wire 15, the inside fixed connection base 10 of first casing 1, base 10 one end fixed connection connecting wire 15, connecting wire 15 one end fixed connection control panel 13, the size of the regulation signal of being convenient for, control panel 13 outer wall fixed connection controller 14, control panel 13 outer wall fixed connection extension line 16.

When the piezoelectric acceleration sensor is used, the first shell 1 is fixed on the surface of an object to be detected, the mass block 7 in the first shell 1 is driven to slide along the outer wall of the sliding rod 3 through vibration generated by the object, the telescopic rod 5 is pushed to shrink and extrude the spring 2, the mass block 7 extrudes the piezoelectric plate to move and extrude the metal sheet under the pushing of the spring 2, an electric power signal generated by extrusion of the piezoelectric plate is led into the control panel 13 along the connecting line 15 to be amplified, and then is led into the second shell 12 along the extension line 16, and the first rubber pad 11 is arranged between the bottom end of the piezoelectric plate and the contact position of the first shell 1, so that extrusion stress is buffered when the mass block 7 extrudes the piezoelectric plate, the service life is prolonged, and the vibration suffered by the first shell 1 and the second shell 12 is effectively slowed down and transmitted to the second shell 12 through the third rubber pad 20, so that the control electric appliance original element in the second shell 12 is conveniently protected, and the application range of the IEPE acceleration sensor is conveniently improved.

The utility model has the advantages that:

1. the first rubber pad is arranged between the bottom end of the piezoelectric plate and the contact part of the first shell, so that when the mass block extrudes the piezoelectric plate, extrusion stress is buffered, the service life is prolonged, and the outer wall of the first shell is fixedly connected with the second shell;

2. through setting up the third rubber pad between first casing and second casing, the effectual vibrations that slow down receive at first casing slow down the transmission to the second casing of being convenient for protect the inside control electrical apparatus original paper of second casing, be convenient for improve IEPE acceleration sensor's accommodation.

The circuit, the electronic components and the modules are all in the prior art, and can be completely realized by a person skilled in the art, and needless to say, the protection of the utility model does not relate to the improvement of software and a method.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

IEPE acceleration sensor, its characterized in that: including first casing (1), second casing (12), first rubber pad (11), second rubber pad and third rubber pad (20), inside fixed connection slide bar (3) of first casing (1), slide bar (3) outer wall bottom sliding connection preforming board, first rubber pad (11) of embedding connection between preforming board bottom and the inside bottom of first casing (1), inside fixed connection backup pad (19) of second casing (12), backup pad (19) outer wall passes through fixing bolt (17) fixed connection control panel (13), embedding connection second rubber pad (18) between backup pad (19) and control panel (13), fixed connection third rubber pad (20) between first casing (1) and second casing (12).
2. The IEPE acceleration sensor of claim 1 characterized in that: the outer wall of the sliding rod (3) is connected with the metal plate and the sliding sleeve (4) in a sliding mode, and the outer wall of the sliding sleeve (4) is fixedly connected with the mass block (7).
3. The IEPE acceleration sensor of claim 2, characterized in that: the two sides of the mass block (7) are fixedly connected with the connecting blocks (6) respectively, and a telescopic rod (5) is fixedly connected between the top ends of the connecting blocks (6) and the top end inside the first shell (1).
4. The IEPE acceleration sensor of claim 3 characterized in that: a spring (2) is fixedly connected between one end of the telescopic rod (5) and the top end of the first shell (1), and the spring (2) is connected with the telescopic rod (5) in a surrounding mode.
5. The IEPE acceleration sensor of claim 1 characterized in that: the novel electric heating device is characterized in that the base (10) is fixedly connected inside the first shell (1), one end of the base (10) is fixedly connected with the connecting wire (15), one end of the connecting wire (15) is fixedly connected with the control board (13), and the connecting wire (15) is fixedly connected with the metal block (9).
6. The IEPE acceleration sensor of claim 1 characterized in that: the outer wall of the control board (13) is fixedly connected with the controller (14), and the outer wall of the control board (13) is fixedly connected with the extension line (16).