CN113030512A - Accelerometer and accelerometer gauge head and servo circuit connection method - Google Patents
Accelerometer and accelerometer gauge head and servo circuit connection method Download PDFInfo
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- CN113030512A CN113030512A CN201911351700.4A CN201911351700A CN113030512A CN 113030512 A CN113030512 A CN 113030512A CN 201911351700 A CN201911351700 A CN 201911351700A CN 113030512 A CN113030512 A CN 113030512A
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- tube shell
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000011521 glass Substances 0.000 claims abstract description 65
- 238000005245 sintering Methods 0.000 claims abstract description 48
- 238000009413 insulation Methods 0.000 claims abstract description 44
- 238000004806 packaging method and process Methods 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 12
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000001133 acceleration Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/0802—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/02—Housings
- G01P1/023—Housings for acceleration measuring devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/09—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up
- G01P15/0922—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by piezoelectric pick-up of the bending or flexing mode type
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
The invention discloses a method for connecting an accelerometer and an accelerometer gauge outfit with a servo circuit, which comprises the following steps: welding one end of a glass sintering insulation terminal at a packaging pad of the glass sintering insulation terminal arranged on the servo circuit printed circuit board; penetrating a second part of a lead terminal on the servo circuit tube shell through a corresponding lead terminal pad on the servo circuit printed circuit board, and welding and fixing the second part of the lead terminal and the lead terminal pad; fixedly connecting a cover plate with the servo circuit tube shell, and enabling a glass sintering insulation terminal to penetrate through a through hole formed in the cover plate during the fixed connection; and connecting one end of the glass sintering insulation terminal, which is not connected with the glass sintering insulation terminal packaging bonding pad, with a corresponding area of the upper pendulum component of the accelerometer core through a gold wire. The invention solves the technical problems of more assembly processes and more complex working procedures of the existing accelerometer.
Description
Technical Field
The invention relates to the technical field of accelerometers, in particular to an accelerometer and a method for connecting an accelerometer gauge outfit and a servo circuit.
Background
The accelerometer is used as an important inertial sensor, is mainly used for measuring acceleration signals input along the sensitive axial direction of the accelerometer, and has the characteristics of high resolution, high stability and the like.
Accelerometer mainly comprises accelerometer gauge outfit and accelerometer servo circuit, and at present, accelerometer gauge outfit and accelerometer servo circuit correspond pad electric intercommunication, concrete connection mode through with gauge outfit side binding post and servo circuit side: in the assembling process of the torquer, 5 wiring columns are encapsulated in the two corresponding excitation ring threaded holes by using an adhesive according to the electrical property; in the process of assembling the watch core, a binding post of the torquer is communicated with a corresponding area of the pendulum assembly by a gold wire; when the accelerometer circuit is assembled, firstly, trimming the length of a lead or an enameled wire to 10-15 mm, welding one side of the lead or the enameled wire to a gauge head binding post, and welding the other side of the lead or the enameled wire to a corresponding bonding pad of the circuit; and finally, the communication between the gauge outfit and the circuit is realized. The existing accelerometer has the disadvantages of complicated connection of internal parts, more assembly processes and more complex procedures.
Disclosure of Invention
In order to solve at least one of the above problems, the present invention provides a method for connecting an accelerometer and accelerometer head to a servo circuit.
In order to achieve the above object, according to one aspect of the present invention, there is provided an acceleration including: the circuit comprises a servo circuit tube shell, a servo circuit printed circuit board, a glass sintering insulation terminal and a cover plate;
the servo circuit tube shell is provided with a plurality of lead terminals, the lead terminals penetrate through the servo circuit tube shell and are divided into a first lead terminal part and a second lead terminal part on two sides of the servo circuit tube shell, and the first lead terminal part is longer than the second lead terminal part;
a glass sintering insulation terminal packaging pad and lead terminal pads corresponding to the lead terminals are arranged on the servo circuit printed circuit board; the lead terminal second portions penetrate the corresponding lead terminal pads and are fixedly connected with the lead terminal pads;
the cover plate is connected with the servo circuit tube shell, and a through hole for passing through the glass sintering insulation terminal is formed in the cover plate;
the glass sintering insulation terminal penetrates through the through hole, one end of the glass sintering insulation terminal is connected with the glass sintering insulation terminal packaging bonding pad, and the other end of the glass sintering insulation terminal is connected with a corresponding area of the accelerometer core upper swing component through a gold wire.
Optionally, the glass-frit insulating terminal includes a gold-plated lead, the gold-plated lead at one end of the glass-frit insulating terminal is bent at 90 °, the gold-plated lead at the other end of the glass-frit insulating terminal is straight, and one end of the gold-plated lead of the glass-frit insulating terminal, which is bent at 90 °, is connected to the glass-frit insulating terminal package pad.
Optionally, the glass-sintered insulated terminal includes a cylindrical housing, a glass glaze is disposed in the cylindrical housing, and the gold-plated lead is disposed in the glass glaze.
Optionally, the number of the gold-plated leads is three.
Optionally, the edge of the servo circuit tube shell is protruded, an adhesive is arranged at the edge protrusion of the servo circuit tube shell, and the cover plate is fixedly connected with the servo circuit tube shell through the adhesive.
In order to achieve the above object, according to another aspect of the present invention, there is provided an accelerometer head and servo circuit connection method, including:
welding one end of a glass sintering insulation terminal at a packaging pad of the glass sintering insulation terminal arranged on the servo circuit printed circuit board;
enabling a second part of a lead terminal on the servo circuit tube shell to penetrate through a corresponding lead terminal pad on the servo circuit printed circuit board, and welding and fixing the second part of the lead terminal and the lead terminal pad, wherein a plurality of lead terminals are arranged on the servo circuit tube shell, the lead terminals penetrate through the servo circuit tube shell and are divided into a first part of the lead terminal and a second part of the lead terminal on two sides of the servo circuit tube shell, the first part of the lead terminal is longer than the second part of the lead terminal, and the servo circuit printed circuit board is provided with lead terminal pads corresponding to the lead terminals;
fixedly connecting a cover plate with the servo circuit tube shell, and enabling a glass sintering insulation terminal to penetrate through a through hole formed in the cover plate during the fixed connection;
and connecting one end of the glass sintering insulation terminal, which is not connected with the glass sintering insulation terminal packaging bonding pad, with a corresponding area of the upper pendulum component of the accelerometer core through a gold wire.
Optionally, the cover plate is fixedly connected to the casing of the servo circuit, and specifically includes:
placing the servo circuit tube shell in a base of a cover plate bonding tool, and enabling a first part of a lead terminal on the servo circuit tube shell to penetrate through a through hole formed in the base;
adsorbing the cover plate on the magnetic steel on the top cover of the cover plate bonding tool, and adjusting the position of the cover plate to align the through hole in the cover plate with the through hole in the top cover;
coating an adhesive on the edge of the servo circuit tube shell, placing the top cover and the cover plate on the base, aligning the cover plate with the servo circuit tube shell, enabling the glass sintering insulation terminal to penetrate through holes formed in the cover plate and the top cover, applying pretightening force through a pretightening mechanism arranged on the cover plate bonding tool to enable the cover plate to be tightly attached to the servo circuit tube shell, and removing the cover plate bonding tool after the adhesive is cured.
Optionally, the edge of the servo circuit case is convex;
the coating of the adhesive at the edge of the servo circuit tube shell specifically comprises:
and coating adhesive on the edge bulge of the servo circuit tube shell.
Optionally, the glass-sintered insulated terminal includes a cylindrical housing, a glass glaze is disposed in the cylindrical housing, three gold-plated leads are disposed in the glass glaze, the gold-plated lead at one end of the glass-sintered insulated terminal is bent at 90 °, and the gold-plated lead at the other end of the glass-sintered insulated terminal is straight;
weld the glass sintering insulated terminal encapsulation pad department that sets up on servo circuit printed circuit board with the one end of glass sintering insulated terminal, specifically include:
and welding one end of the gold-plated lead of the glass sintering insulation terminal bent at 90 degrees at the packaging pad of the glass sintering insulation terminal.
Optionally, the edge of the servo circuit case is convex;
with the apron with servo circuit tube fixed connection specifically includes:
and arranging an adhesive at the edge bulge of the servo circuit tube shell, aligning the cover plate with the servo circuit tube shell and applying pretightening force, and fixedly connecting the cover plate with the servo circuit tube shell after the adhesive is cured.
The invention has the beneficial effects that: the invention provides a method for connecting an accelerometer and an accelerometer gauge outfit with a servo circuit, which simplifies the assembly process of the internal components of the accelerometer and improves the assembly efficiency of the accelerometer. The accelerometer assembled by the accelerometer head and servo circuit connection method has the characteristics of simple structure and stable connection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:
FIG. 1 is a flow chart of a method for connecting an accelerometer header to a servo circuit according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a first configuration of a servo circuit housing of an accelerometer according to an embodiment of the invention;
FIG. 3 is a second schematic diagram of a servo circuit package of an accelerometer according to an embodiment of the invention;
FIG. 4 is a schematic diagram of an accelerometer servo circuit printed circuit board according to an embodiment of the invention;
FIG. 5 is a schematic view of a first configuration of a glass frit insulated terminal according to an embodiment of the present invention;
FIG. 6 is a schematic view of a second configuration of a glass-sintered insulated terminal according to an embodiment of the present invention;
FIG. 7 is a schematic view of a cover plate according to an embodiment of the present invention;
fig. 8 is a schematic structural view of a cover plate bonding tool according to an embodiment of the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings, 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 invention, the terms "upper", "lower", "inner", "outer", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "disposed," "provided," and "connected" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can 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 meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The invention provides a method for connecting an accelerometer (which can be a quartz flexible accelerometer) gauge head and a servo circuit, and an accelerometer formed by connecting the accelerometer gauge head and the servo circuit. The accelerometer formed by the connection of the invention comprises a servo circuit tube shell, a servo circuit printed circuit board, a glass sintering insulation terminal and a cover plate.
Fig. 2 and 3 are schematic structural diagrams of a servo circuit package of an accelerometer according to an embodiment of the invention, and as shown in fig. 2, a plurality of lead terminals 1 are arranged on the servo circuit package. In an alternative embodiment of the present invention, the plurality of lead terminals 1 are uniformly distributed in the lower half of the servo circuit package. As shown in fig. 3, in the embodiment of the present invention, the lead terminal 1 penetrates the servo circuit case and is divided into the lead terminal first portion 101 and the lead terminal second portion 102 at both sides of the servo circuit case, and the lead terminal first portion 101 is longer than the lead terminal second portion 102.
Fig. 4 is a schematic diagram of a servo circuit printed circuit board of an accelerometer according to an embodiment of the invention, and as shown in fig. 4, lead terminal pads 5 corresponding to lead terminals 1 are arranged on the servo circuit printed circuit board, and the number and positions of the lead terminal pads 5 on the servo circuit printed circuit board correspond to the lead terminals 1 arranged on the servo circuit package. The servo circuit printed circuit board is also provided with glass frit insulating terminal encapsulation pads for connecting glass frit insulating terminals, 2 of which are indicated at 3 and 4 in fig. 4 in an alternative embodiment of the invention.
Fig. 5 and 6 are schematic structural views of a glass-sintered insulated terminal according to an embodiment of the present invention, and as shown in fig. 5 and 6, the glass-sintered insulated terminal includes a cylindrical housing 6, a glass glaze 7 is disposed in the cylindrical housing 6, a gold-plated lead 8 is disposed in the glass glaze 7, and the number of the gold-plated lead 8 is 3 in an alternative embodiment of the present invention. The gold-plated lead 8 is bent at 90 ° at the first end 9 of the glass-sintered insulated terminal, and the gold-plated lead 8 is straight at the second end 10 of the glass-sintered insulated terminal. In an alternative embodiment of the invention there are 2 glass frit insulated terminals.
Fig. 7 is a schematic structural view of a cover plate according to an embodiment of the present invention, in which a through hole 11 for insulating a terminal by glass frit is provided in the cover plate as shown in fig. 7, and the size and shape of the cover plate correspond to those of a servo circuit case in the embodiment of the present invention. The cover plate is used for being packaged with the servo circuit tube shell together to support the pendulum assembly, specifically, as shown in fig. 3, the edge of the servo circuit tube shell protrudes, the cover plate is aligned with the servo circuit tube shell through the adhesive arranged at the protruding part 2 of the edge of the servo circuit tube shell and applies pretightening force, and after the adhesive is cured, the cover plate is fixedly connected with the servo circuit tube shell.
The accelerometer connecting structure formed by connecting the accelerometer head and the servo circuit by the connecting method of the invention is as follows: the first ends 9 of the two glass-sintered insulated terminals are welded with the glass-sintered insulated terminal packaging pads 3 and 4; the lead terminal second portions 102 of the servo circuit package are passed through the lead terminal lands 5 on the corresponding servo circuit printed circuit board and soldered together; the edge bulge 2 of the servo circuit tube shell is provided with an adhesive, the cover plate is fixedly connected with the servo circuit tube shell through the adhesive, and two glass sintering insulation terminals penetrate through two through holes 11 arranged on the cover plate when the cover plate is connected; the end face of the gold-plated lead 8 at the second end 10 of the glass-sintered insulated terminal is communicated with the corresponding area of the upper pendulum component of the accelerometer core through a gold wire.
In order to facilitate the assembly of the cover plate and the servo circuit tube shell, the invention further provides a cover plate bonding tool, fig. 8 is a schematic structural diagram of the cover plate bonding tool in the embodiment of the invention, as shown in fig. 8, the cover plate bonding tool comprises a top cover 12 and a base 13, a magnetic steel 14 for adsorbing the cover plate is arranged at the central position below the top cover 12, a hole corresponding to a through hole 11 in the cover plate is arranged in the top cover 12, and a hole corresponding to a first part 101 of a lead terminal is arranged in the base 13, so that the servo circuit tube shell can be limited. The cover plate bonding tool further comprises a pre-tightening mechanism 15, the pre-tightening mechanism 15 is connected with the top cover 12 and the base 13 at the same time, and the pre-tightening mechanism 15 is used for applying pre-tightening force to enable the top cover 12 and the base 13 to be tightly attached. In an alternative embodiment of the present invention, the pre-tightening mechanism 15 may be a screw-and-screw mechanism, wherein the screw is rotated to provide the pre-tightening force to the top cover 12 and the base 13 by being disposed in the screw hole.
The method for connecting the accelerometer head and the servo circuit of the present invention is described in detail below, and fig. 1 is a flowchart of a method for connecting the accelerometer head and the servo circuit of the present invention, as shown in fig. 1, in the embodiment of the present invention, the method for connecting the accelerometer head and the servo circuit includes steps S101 to S104.
And step S101, welding one end of the glass sintering insulation terminal at a glass sintering insulation terminal packaging pad arranged on the servo circuit printed circuit board.
In an embodiment of the present invention, this step may solder the first ends 9 of the two glass frit insulated terminals to the glass frit insulated terminal encapsulation pads 3 and 4.
And S102, penetrating the second part of the lead terminal on the servo circuit package through the corresponding lead terminal bonding pad on the servo circuit printed circuit board, and welding and fixing the second part of the lead terminal and the lead terminal bonding pad.
In the embodiment of the present invention, this step passes the lead terminal second portions 102 of the servo circuit package through the lead terminal lands 5 on the corresponding servo circuit printed circuit board, and solder-fixes them.
And S103, fixedly connecting the cover plate with the servo circuit tube shell, and enabling the glass sintering insulation terminal to penetrate through the through hole formed in the cover plate during the fixed connection.
In the embodiment of the invention, the adhesive can be arranged at the edge bulge 2 of the servo circuit tube shell, so that the cover plate is aligned with the servo circuit tube shell and applies pretightening force, and the cover plate is fixedly connected with the servo circuit tube shell after the adhesive is cured. The cover plate is connected with the servo circuit tube shell, and the two glass sintering insulation terminals penetrate through the two through holes 11 arranged on the cover plate.
And step S104, connecting one end of the glass sintering insulation terminal, which is not connected with the glass sintering insulation terminal packaging bonding pad, with a corresponding area of the accelerometer core upper swing component through a gold wire.
In the embodiment of the invention, the step is to communicate the end face of the gold-plated lead 8 of the second end 10 of the glass-sintered insulated terminal with the corresponding area of the pendulum assembly on the accelerometer core through a gold wire. Thereby completing the connection of the accelerometer head to the servo circuit.
In the embodiment of the present invention, the cover plate and the casing of the servo circuit in step S103 may be assembled by using the cover plate bonding tool shown in fig. 8, so as to improve the assembly efficiency. The detailed steps of assembling the cover plate and the servo circuit tube shell by adopting the cover plate bonding tool can be as follows:
placing a servo circuit tube shell in a base 13 of a cover plate bonding tool, and enabling a first part 101 of a lead terminal on the servo circuit tube shell to penetrate through a through hole formed in the base 13 so as to limit the servo circuit tube shell;
adsorbing a cover plate on magnetic steel 14 on a top cover 12 of a cover plate bonding tool, and adjusting the position of the cover plate to align a through hole 11 in the cover plate with a through hole arranged in the top cover 12;
coating an adhesive on a protruding part 2 at the edge of the servo circuit tube shell, arranging the top cover 12 and the cover plate on the base 13, aligning the cover plate with the servo circuit tube shell, enabling the glass sintering insulation terminal to penetrate through holes formed in the cover plate and the top cover, applying pretightening force through a screw of the rotary pretightening mechanism 15 to enable the cover plate to be tightly attached to the servo circuit tube shell, removing a cover plate bonding tool after the adhesive is cured, and completing the assembly of the cover plate and the servo circuit tube shell.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An accelerometer, comprising: the circuit comprises a servo circuit tube shell, a servo circuit printed circuit board, a glass sintering insulation terminal and a cover plate;
the servo circuit tube shell is provided with a plurality of lead terminals, the lead terminals penetrate through the servo circuit tube shell and are divided into a first lead terminal part and a second lead terminal part on two sides of the servo circuit tube shell, and the first lead terminal part is longer than the second lead terminal part;
a glass sintering insulation terminal packaging pad and lead terminal pads corresponding to the lead terminals are arranged on the servo circuit printed circuit board; the lead terminal second portions penetrate the corresponding lead terminal pads and are fixedly connected with the lead terminal pads;
the cover plate is connected with the servo circuit tube shell, and a through hole for passing through the glass sintering insulation terminal is formed in the cover plate;
the glass sintering insulation terminal penetrates through the through hole, one end of the glass sintering insulation terminal is connected with the glass sintering insulation terminal packaging bonding pad, and the other end of the glass sintering insulation terminal is connected with a corresponding area of the accelerometer core upper swing component through a gold wire.
2. The accelerometer of claim 1, wherein said glass-sintered insulated terminal comprises a gold-plated lead, said gold-plated lead at one end of said glass-sintered insulated terminal being bent at 90 °, said gold-plated lead at the other end of said glass-sintered insulated terminal being flat, one end of said glass-sintered insulated terminal bent at 90 ° being connected to said glass-sintered insulated terminal package pad.
3. The accelerometer of claim 2, wherein said glass-sintered insulated terminals comprise a cylindrical housing having a glass frit disposed therein, said gold-plated leads being disposed in said glass frit.
4. An accelerometer according to claim 2 or 3, wherein the gold plated leads are three.
5. The accelerometer of claim 1, wherein the servo circuit case has a raised edge, and an adhesive is disposed on the raised edge of the servo circuit case, and the cover plate is fixedly connected to the servo circuit case via the adhesive.
6. A method for connecting an accelerometer head and a servo circuit is characterized by comprising the following steps:
welding one end of a glass sintering insulation terminal at a packaging pad of the glass sintering insulation terminal arranged on the servo circuit printed circuit board;
enabling a second part of a lead terminal on the servo circuit tube shell to penetrate through a corresponding lead terminal pad on the servo circuit printed circuit board, and welding and fixing the second part of the lead terminal and the lead terminal pad, wherein a plurality of lead terminals are arranged on the servo circuit tube shell, the lead terminals penetrate through the servo circuit tube shell and are divided into a first part of the lead terminal and a second part of the lead terminal on two sides of the servo circuit tube shell, the first part of the lead terminal is longer than the second part of the lead terminal, and the servo circuit printed circuit board is provided with lead terminal pads corresponding to the lead terminals;
fixedly connecting a cover plate with the servo circuit tube shell, and enabling a glass sintering insulation terminal to penetrate through a through hole formed in the cover plate during the fixed connection;
and connecting one end of the glass sintering insulation terminal, which is not connected with the glass sintering insulation terminal packaging bonding pad, with a corresponding area of the upper pendulum component of the accelerometer core through a gold wire.
7. The method for connecting the accelerometer gauge outfit and the servo circuit of claim 6, wherein the fixedly connecting the cover plate and the servo circuit tube comprises:
placing the servo circuit tube shell in a base of a cover plate bonding tool, and enabling a first part of a lead terminal on the servo circuit tube shell to penetrate through a through hole formed in the base;
adsorbing the cover plate on the magnetic steel on the top cover of the cover plate bonding tool, and adjusting the position of the cover plate to align the through hole in the cover plate with the through hole in the top cover;
coating an adhesive on the edge of the servo circuit tube shell, placing the top cover and the cover plate on the base, aligning the cover plate with the servo circuit tube shell, enabling the glass sintering insulation terminal to penetrate through holes formed in the cover plate and the top cover, applying pretightening force through a pretightening mechanism arranged on the cover plate bonding tool to enable the cover plate to be tightly attached to the servo circuit tube shell, and removing the cover plate bonding tool after the adhesive is cured.
8. The method of claim 7, wherein the servo circuit case has a raised edge;
the coating of the adhesive at the edge of the servo circuit tube shell specifically comprises:
and coating adhesive on the edge bulge of the servo circuit tube shell.
9. The method of claim 6, wherein said glass-sintered insulated terminal comprises a cylindrical housing having a glass frit disposed therein, said glass frit having three gold-plated leads disposed therein, said gold-plated leads at one end of said glass-sintered insulated terminal being bent at 90 ° and said gold-plated leads at the other end of said glass-sintered insulated terminal being straight;
weld the glass sintering insulated terminal encapsulation pad department that sets up on servo circuit printed circuit board with the one end of glass sintering insulated terminal, specifically include:
and welding one end of the gold-plated lead of the glass sintering insulation terminal bent at 90 degrees at the packaging pad of the glass sintering insulation terminal.
10. The method of claim 6, wherein the servo circuit case has a raised edge;
with the apron with servo circuit tube fixed connection specifically includes:
and arranging an adhesive at the edge bulge of the servo circuit tube shell, aligning the cover plate with the servo circuit tube shell and applying pretightening force, and fixedly connecting the cover plate with the servo circuit tube shell after the adhesive is cured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911351700.4A CN113030512A (en) | 2019-12-25 | 2019-12-25 | Accelerometer and accelerometer gauge head and servo circuit connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911351700.4A CN113030512A (en) | 2019-12-25 | 2019-12-25 | Accelerometer and accelerometer gauge head and servo circuit connection method |
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| CN113030512A true CN113030512A (en) | 2021-06-25 |
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|---|---|---|---|
| CN201911351700.4A Pending CN113030512A (en) | 2019-12-25 | 2019-12-25 | Accelerometer and accelerometer gauge head and servo circuit connection method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4094199A (en) * | 1976-07-06 | 1978-06-13 | Sundstrand Data Control, Inc. | Accelerometer |
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| US5679897A (en) * | 1995-07-25 | 1997-10-21 | Matsushita Electric Industrial Co., Ltd. | Piezoelectric type acceleration sensor with metallic case and resin package |
| CN103033645A (en) * | 2012-12-11 | 2013-04-10 | 北京兴华机械厂 | Omniseal gauge outfit and quartz flexure accelerometer |
| CN204495851U (en) * | 2015-04-09 | 2015-07-22 | 陕西航晶微电子有限公司 | A kind of high quartz flexure accelerometers servo circuit |
| CN105403732A (en) * | 2015-12-21 | 2016-03-16 | 中国电子科技集团公司第二十六研究所 | Quartz flexible accelerometer capacitance sensor insulator lead wire and mounting structure |
| CN205809101U (en) * | 2016-06-27 | 2016-12-14 | 高碑店市开拓精密仪器制造有限责任公司 | A kind of high-precision quartz flexure accelerometers |
| CN209043928U (en) * | 2018-09-28 | 2019-06-28 | 天津北空晶科自控技术有限公司 | A kind of quartz flexibility acceleration sensor that leakproofness is high |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4094199A (en) * | 1976-07-06 | 1978-06-13 | Sundstrand Data Control, Inc. | Accelerometer |
| US4169384A (en) * | 1976-09-20 | 1979-10-02 | Systron-Donner Corporation | Linear accelerometer mechanism |
| US5679897A (en) * | 1995-07-25 | 1997-10-21 | Matsushita Electric Industrial Co., Ltd. | Piezoelectric type acceleration sensor with metallic case and resin package |
| JPH09145512A (en) * | 1995-11-22 | 1997-06-06 | Omron Corp | Pressure sensor, capacitive sensor, electric device and its manufacture |
| CN103033645A (en) * | 2012-12-11 | 2013-04-10 | 北京兴华机械厂 | Omniseal gauge outfit and quartz flexure accelerometer |
| CN204495851U (en) * | 2015-04-09 | 2015-07-22 | 陕西航晶微电子有限公司 | A kind of high quartz flexure accelerometers servo circuit |
| CN105403732A (en) * | 2015-12-21 | 2016-03-16 | 中国电子科技集团公司第二十六研究所 | Quartz flexible accelerometer capacitance sensor insulator lead wire and mounting structure |
| CN205809101U (en) * | 2016-06-27 | 2016-12-14 | 高碑店市开拓精密仪器制造有限责任公司 | A kind of high-precision quartz flexure accelerometers |
| CN209043928U (en) * | 2018-09-28 | 2019-06-28 | 天津北空晶科自控技术有限公司 | A kind of quartz flexibility acceleration sensor that leakproofness is high |
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Application publication date: 20210625 |