CN219416509U - Force transducer with amplifier - Google Patents

Abstract

The utility model discloses a force transducer with an amplifier, which comprises a force transducer body, an inner ring protection cover, a strain gauge, a printed circuit board and a signal amplifier, wherein the inner ring protection cover is arranged in an inner cavity of the force transducer body, and the strain gauge, the printed circuit board and the signal amplifier are all arranged on the inner wall of the force transducer body. This take amplifier's force transducer through the design and the use of flaky strainometer, printed circuit board and signal amplifier, directly carries out the signal amplification in the mode of putting into among force transducer, lets force transducer self possess and carries out the amplification processing with the pressure signal that surveys, no longer need external signal amplification equipment to match and use, and is more convenient, and reduced use cost after the integration.

Description

Force transducer with amplifier

Technical Field

The utility model relates to the technical field of force transducers, in particular to a force transducer with an amplifier.

Background

The load cell is mainly applied to aspects such as weighing, pressure detection and the like, and the types of the current load cell are relatively more.

When using the force transducer, often need to match different equipment according to the use scene and use, for example, when detecting the relatively less target of pressure or gravity, the signal that fine elasticity shape produced is not enough for showing that data is fine for one hundred years, perhaps be difficult to gather, just need carry out the processing of amplifying to pressure or gravity's signal at this moment, can satisfy the user demand, when using, the sensor needs to match the amplifier to carry out signal amplification, when buying or using the sensor of current product self-contained amplifier, just need not consider the problem of external amplifier, but the restriction of force transducer self structure and structure, prior art means all adopts external mode to use, very loaded down with trivial details inconvenient, must carry signal amplifier and need be connected with the sensor when using the force transducer just can. Therefore, we propose a load cell with an amplifier to solve the problem that the prior art needs to be additionally provided with an amplifier, which is complicated and inconvenient to use.

Disclosure of Invention

The utility model aims to provide a load cell with an amplifier, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a take force transducer of amplifier, includes force transducer body, inner circle protection casing, strainometer, printed circuit board and signal amplifier, the inner circle protection casing sets up in the inner chamber of force transducer body, strainometer, printed circuit board and signal amplifier all install on the inner wall of force transducer body.

Preferably, an external contact is arranged on the side face of the force transducer body, and the end of the external contact is electrically connected with the signal amplifier through a wire.

Preferably, the strain gauge, the printed circuit board and the signal amplifier are adhered to the inner wall of the force transducer body through glue, and are positioned between the force transducer body and the inner ring protective cover.

Preferably, the strain gauge is electrically connected to the printed circuit board by a wire, and the signal amplifier is electrically connected to the printed circuit board by a wire.

Preferably, the force transducer body comprises a lower shell and an upper shell, and the upper shell and the lower shell are detachably connected in a butt joint mode.

Preferably, the upper shell and the lower shell are concave shells and are elastic bodies, and two ends of the inner ring protective cover are arranged at the concave part of the shell.

Preferably, the bottom of lower casing and the top of last casing have all seted up the convex through-hole, the inner chamber through-connection of convex through-hole has the lock bolt, the bottom of lock bolt outer lane is provided with the screw thread, just the bottom threaded connection of lock bolt outer lane has lock nut.

Preferably, the top of the lower shell is provided with a butt joint hole, and the bottom of the upper shell is integrally provided with a butt joint bolt.

Compared with the prior art, the utility model has the beneficial effects that:

1. this take amplifier's force transducer through the design and the use of flaky strainometer, printed circuit board and signal amplifier, directly carries out signal amplification in the force transducer's the built-in mode, lets force transducer self possess and carries out the amplification processing with the pressure signal that surveys, does not need external signal amplification equipment to match the use, and is more convenient, and has reduced use cost after integrating.

2. This take amplifier's force transducer through the design and the use of upper and lower two casings, on the basis of taking and built-in signal amplification function certainly, improves the operation and maintenance performance of whole force transducer, can carry out the dismouting mode and overhaul and change inside components and parts, avoids the problem that breaks down at every turn, just needs to purchase new force transducer and uses, increases use cost's problem.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the structure of the present utility model;

FIG. 3 is a front view of the junction of FIG. 2 in accordance with the present utility model;

fig. 4 is an exploded view of the lower housing structure of the present utility model.

In the figure: 1. a load cell body; 11. a lower housing; 12. an upper housing; 2. an inner ring protective cover; 3. strain gauges; 4. a printed circuit board; 5. a signal amplifier; 6. a wire; 7. an external contact; 8. a convex through hole; 9. a locking bolt; 10. a lock nut; 101. a butt joint hole; 102. and (5) butting bolts.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described 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.

Example 1:

the utility model provides a take force transducer of amplifier, includes force transducer body 1, inner circle protection casing 2, strainometer 3, printed circuit board 4 and signal amplifier 5, and inner circle protection casing 2 sets up in the inner chamber of force transducer body 1, and strainometer 3, printed circuit board 4 and signal amplifier 5 all install on the inner wall of force transducer body 1.

The side face of the force transducer body 1 is provided with an external contact 7, and the end of the external contact 7 is electrically connected with the signal amplifier 5 through a lead 6.

The strain gauge 3, the printed circuit board 4 and the signal amplifier 5 are adhered to the inner wall of the force transducer body 1 through glue, and are located between the force transducer body 1 and the inner ring protection cover 2.

Wherein the strain gauge 3 is electrically connected to the printed circuit board 4 via a wire 6, and the signal amplifier 5 is electrically connected to the printed circuit board 4 via a wire 6.

In this embodiment, as shown in fig. 1, 2 and 4, when the force sensor according to this embodiment is used, the force sensor is directly electrically connected to external equipment through the external contact 7.

When the sensor is used, after the elastic body material of the force transducer body 1 is extruded to deform, the strain gauge 3 transmits an analog signal to the signal amplifier 5 through the Wheatstone bridge after sensing the deformation, the signal amplifier generates a digital signal through amplifying the analog signal received by the signal amplifier 5, and finally the digital signal is transmitted to a digital acquisition system of a user from the external contact 7.

Example 2:

the utility model provides a take force transducer of amplifier, includes force transducer body 1, inner circle protection casing 2, strainometer 3, printed circuit board 4 and signal amplifier 5, and inner circle protection casing 2 sets up in the inner chamber of force transducer body 1, and strainometer 3, printed circuit board 4 and signal amplifier 5 all install on the inner wall of force transducer body 1, and force transducer body 1 includes lower casing 11 and last casing 12, goes up casing 12 and lower casing 11 detachable butt joint installation.

Further, the upper shell 12 and the lower shell 11 are concave shells and are elastic bodies, and two ends of the inner ring protection cover 2 are arranged at the concave positions of the shells.

Further, the bottom of the lower shell 11 and the top of the upper shell 12 are both provided with convex through holes 8, the inner cavity of each convex through hole 8 is connected with a locking bolt 9 in a penetrating way, the bottom of the outer ring of each locking bolt 9 is provided with threads, and the bottom of the outer ring of each locking bolt 9 is connected with a locking nut 10 in a threaded way.

Further, a docking hole 101 is formed at the top of the lower housing 11, and a docking bolt 102 is integrally formed at the bottom of the upper housing 12.

In this embodiment, the design of the upper and lower elastic shells is adopted in the force sensor body 1, mainly for ensuring the normal operation of the built-in integrated force measuring and signal amplifying components, and it is considered that the upper shell 12 and the lower shell 11 can be opened to repair or replace parts due to the fact that the signal amplifier 5 and other components are inevitably damaged due to the built-in design of the signal amplifier 5 and other components, so that a new force sensor is not required to be purchased when the upper shell 12 and the lower shell 11 are broken down, when the force sensor is assembled, the butt joint bolts 102 are aligned with the butt joint holes 102, the upper shell 12 and the lower shell 11 are fixed firstly, then the locking bolts 9 are inserted into the convex through holes 8, finally, the convex through holes 8 are locked through the locking nuts 10, and the design of the convex through holes 8 is mainly for hiding the locking bolts 9 and the locking nuts 10, so that the convex parts are not protruded on the surface of the force sensor body 1, and the use is prevented.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. 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.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a take force transducer of amplifier, includes force transducer body (1), inner circle protection casing (2), strainometer (3), printed circuit board (4) and signal amplifier (5), its characterized in that: the inner ring protection cover (2) is arranged in the inner cavity of the force transducer body (1), and the strain gauge (3), the printed circuit board (4) and the signal amplifier (5) are all arranged on the inner wall of the force transducer body (1).

2. A load cell with amplifier according to claim 1, wherein: an external contact (7) is arranged on the side face of the force transducer body (1), and one end of the external contact (7) is electrically connected with the signal amplifier (5) through a wire (6).

3. A load cell with amplifier according to claim 1, wherein: the strain gauge (3), the printed circuit board (4) and the signal amplifier (5) are adhered to the inner wall of the force transducer body (1) through glue, and are positioned between the force transducer body (1) and the inner ring protective cover (2).

4. A load cell with amplifier according to claim 1, wherein: the strain gauge (3) is electrically connected with the printed circuit board (4) through a wire (6), and the signal amplifier (5) is electrically connected with the printed circuit board (4) through the wire (6).

5. A load cell with amplifier according to claim 1, wherein: the force transducer body (1) comprises a lower shell (11) and an upper shell (12), wherein the upper shell (12) and the lower shell (11) are detachably connected in a butt joint mode.

6. A load cell with amplifier according to claim 5, wherein: the upper shell (12) and the lower shell (11) are concave shells and are elastic bodies, and two ends of the inner ring protective cover (2) are arranged at the concave positions of the shells.

7. A load cell with amplifier according to claim 5, wherein: the bottom of inferior valve body (11) and the top of last casing (12) have all seted up convex through-hole (8), the inner chamber through-connection of convex through-hole (8) has lock bolt (9), the bottom of lock bolt (9) outer lane is provided with the screw thread, just the bottom threaded connection of lock bolt (9) outer lane has lock nut (10).

8. A load cell with amplifier according to claim 5, wherein: the top of lower casing (11) has seted up butt joint hole (101), the bottom integral type of last casing (12) is provided with butt joint bolt (102).