CN108205065A

CN108205065A - A kind of accelerometer heats piece

Info

Publication number: CN108205065A
Application number: CN201611176151.8A
Authority: CN
Inventors: 徐国栋; 刘洋; 杨守安; 潘天鹏; 杨杏敏
Original assignee: Aerospace Science and Industry Inertia Technology Co Ltd
Current assignee: Aerospace Science and Industry Inertia Technology Co Ltd
Priority date: 2016-12-19
Filing date: 2016-12-19
Publication date: 2018-06-26
Anticipated expiration: 2036-12-19
Also published as: CN108205065B

Abstract

The present invention provides a kind of new accelerometer heating sheet devices.By setting engraved structure in heating on piece insulating layer, by weld tabs and lead placement in the engraved structure of heating piece center, the corner at insulating layer both ends is set as the measures such as rounded structure, eliminates the warping phenomenon of tradition heating piece, it ensure that temperature control, it is ensured that the reliable and stable work of accelerometer.Meanwhile do not change the basic structure and material of original heating piece, it ensure that the consistency of product structure and material, it is ensured that the reliability of product bonding reduces production cost.

Description

A kind of accelerometer heats piece

Technical field

The present invention relates to a kind of devices of heated quartz flexure accelerometers, belong to a kind of heating device technology area.

Background technology

Important devices of the quartz flexible accelerometer as inertia measurement have many advantages, such as high-precision, high stability.Accelerate Degree measurement accuracy of measurement is influenced by ambient temperature, and therefore, accelerometer need to control when working into trip temperature, so as to provide a temperature Relative constant working environment.To realize the temperature control of accelerometer, existing accelerometer is using bonding heating sheet mode. Accelerometer hull outside is bonded after coating entire housing exterior walls using flexibility heating piece.

Since accelerometer outer diameter is small, radius of curvature is only 10mm or so after heating piece is close to its housing exterior walls, the deformation Amount causes its own restoring force to increase, and the binding force of heating piece and housing after the force value is more than bonding is heated and gone out at sheet border It now tilts, fails so as to cause temperature control.

Invention content

The technical problems to be solved by the invention are to overcome the deficiency of above-mentioned existing apparatus, provide a kind of new acceleration Meter heating sheet devices.

The invention is realized in this way：

A kind of accelerometer heats piece, and including heating plate, upper insulating layer, lower insulating layer, pad, lead, heating plate is located at Between upper insulating layer and lower insulating layer, pad is connect with heating plate, and lead is connect with pad, which is characterized in that upper insulating layer tool There is engraved structure.

The engraved structure, including but not limited to rectangle, ellipse, round rectangle, diamond shape.

The engraved structure is equally spaced along heating leaf length direction.

The engraved structure quantity n and its width a and upper insulating layer length L and minimum length element number N, which exists, to close System, i.e. N >=5n, L >=2 (n × a).

The pad and lead are located at engraved structure.

The heating plate of the pad and lead at left and right sides of the middle part of heating piece, pad is symmetrical.

The upper insulating layer both ends are shorter than lower insulating layer.

The half of upper insulating layer both ends engraved structure width a shorter than lower insulating layer respectively.

The corner at the upper insulating layer both ends is rounded structure.

The rounded structure radius is less than upper insulating layer and the length difference at lower insulating layer both ends.

The upper insulating layer and lower insulating layer are trnaslucent materials.

To promote insulation effect, transparent gorgeous material absolutely, such as Kapton can be coated on the outside of insulating layer on described.

The advantageous effect of the present invention compared with prior art：

(1) compared with existing heating piece, without warping phenomenon after present invention bonding, it ensure that temperature control, it is ensured that accelerate Degree counts reliable and stable work.

(2) present invention does not change the basic structure of original heating piece, upper insulating layer, lower insulating layer and heating before continuing to use The sandwich structure of piece ensure that the consistency of structure, it is ensured that the reliability of product bonding reduces production cost.

(3) present invention does not change the material of original heating piece, ensure that product reliability, reduces production cost.

Description of the drawings

Fig. 1 heats piece sectional view schematic diagram for the prior art；

Fig. 2 is that (upper insulating layer is trnaslucent materials to prior art heating piece top view illustration, therefore heats piece herein by real Line is drawn)；

Fig. 3 is heating piece sectional view schematic diagram provided by the invention；

Fig. 4 is heating piece top view illustration provided by the invention；

Fig. 5 is heating piece diamond shape engraved structure schematic diagram provided by the invention；

Fig. 6 is heating piece ellipse engraved structure schematic diagram provided by the invention；

Fig. 7 is heating piece round rectangle shape engraved structure schematic diagram provided by the invention；

Fig. 8 is heating piece minimum length cell schematics provided by the invention；

1 is upper insulating layer in figure, and 2 be lower insulating layer, and 3 be lead, and 4 be pad, and 5 be heating plate, and 6 be engraved structure, and a is Engraved structure width, quantity n, b are the width of minimum length unit, and quantity N, L are upper insulating layer length.

Specific embodiment

The present invention will be described in detail with specific example below in conjunction with the accompanying drawings.As shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Shown in Fig. 7, Fig. 8.

A kind of accelerometer heats piece, including heating plate 5, upper insulating layer 1, lower insulating layer 2, pad 4, lead 3, heating plate 5 between upper insulating layer 1 and lower insulating layer 2, and pad 4 is connect with heating plate 5, and lead is connect with pad 4, which is characterized in that Upper insulating layer 1 has engraved structure 6.

The engraved structure 6, including but not limited to rectangle, ellipse, round rectangle, diamond shape.

The engraved structure 6 is equally spaced along heating leaf length direction.

The 6 quantity n of engraved structure and its width a and upper 1 length L of insulating layer and minimum length element number N exists Relationship, i.e. N >=5n, L >=2 (n × a).Heating plate is made of multiple identical minimum length units, each minimum length unit Including bending twice.

The pad 4 and lead are located at engraved structure 6.

Two pads 4 are located at the middle part of heating piece, and the heating plate 5 of 4 left and right sides of pad is symmetrical.

1 both ends of upper insulating layer are shorter than lower insulating layer 2.

1 both ends of upper insulating layer are respectively than the half of lower 2 short 6 width a of engraved structure of insulating layer.

The corner at 1 both ends of upper insulating layer is rounded structure.

The rounded structure radius is less than upper insulating layer 1 and the length difference at lower 2 both ends of insulating layer.

Most preferred embodiment：

Shown in Figure 4, it is 2mm fillets that four corners of lower insulating layer 2, which are radius, and heating plate 5 passes through bonding agent (figure In be not shown) be adhered on lower insulating layer 2.Two pads 4 are respectively welded in the head end of heating plate 5 and end, and pad 4 is located at heating 5 medium positions of piece.Pad 4 is elongated rectangular configuration, and wherein 4 width of pad and 5 width of heating plate is wide, the length of width 5 times of degree.Pad 4 is made of welded connection respectively with lead 3.The covering of upper insulating layer 1 is bonded on heating plate 5, and with it is lower absolutely Edge layer 2 forms sandwich structure and heating plate 5 is clipped in the middle.Four corners of upper insulating layer 1 are the fillet that radius 2 is 2mm, Its both ends is respectively away from lower 2 both ends 3mm of insulating layer.

Be provided with engraved structure 6 at three on upper insulating layer 1, wherein one is in 4 position of pad, be in addition symmetrically distributed at two plus The left and right sides of warm piece, three engraved structures 6 are divided into 4 sections by piece is heated.6 width of each engraved structure is 6mm, more than heating The minimum length unit 5mm of piece 5.Heating plate is made of multiple identical minimum length units, each minimum length unit packet It includes and bends twice.

There are following relationships with upper insulating layer length L and minimum length element number N by the quantity n and width a of engraved structure: N >=5n, L >=2 (n × a).Preferably, N >=8n, L >=4 (n × a) are taken.

By the improvement of foregoing invention, after new heating piece is heating and curing using prior art, no corner volume sticks up phenomenon.

Unspecified part of the present invention is known to the skilled person technology.

Claims

1. a kind of accelerometer heats piece, including heating plate (5), upper insulating layer (1), lower insulating layer (2), pad (4), lead (3), heating plate (5) is between upper insulating layer (1) and lower insulating layer (2), and pad (4) is connect with heating plate (5), lead (3) It is connect with pad (4), which is characterized in that upper insulating layer (1) has engraved structure (6).

2. a kind of accelerometer heating piece as described in claim 1, it is characterised in that：The engraved structure (6), including but It is not limited to rectangle, ellipse, round rectangle, diamond shape.

3. a kind of accelerometer heating piece as described in claim 1, it is characterised in that：The engraved structure (6) is along adding Warm leaf length direction is equally spaced.

4. a kind of accelerometer heating piece as described in claim 1-3, it is characterised in that：Described engraved structure (6) the quantity n There are relationship, i.e. N >=5n, L >=2 (n × a) with upper insulating layer (1) length L and minimum length element number N with its width a.

5. a kind of accelerometer heating piece as described in claim 1, it is characterised in that：The pad (4) and lead (3) position At engraved structure (6).

6. a kind of accelerometer heating piece as claimed in claim 5, it is characterised in that：The pad (4) and lead (3) position In the middle part of heating piece, the heating plate (5) at left and right sides of pad (4) is symmetrical.

7. a kind of accelerometer heating piece as described in claim 1, it is characterised in that：Upper insulating layer (1) both ends ratio Lower insulating layer (2) is short.

8. a kind of accelerometer heating piece as claimed in claim 7, it is characterised in that：Described upper insulating layer (1) both ends point The half of engraved structure (6) width a not shorter than lower insulating layer (2).

9. a kind of accelerometer heating piece as described in claim 1, it is characterised in that：Described upper insulating layer (1) both ends Corner is rounded structure.

10. a kind of accelerometer heating piece as claimed in claim 9, it is characterised in that：The rounded structure radius is less than Upper insulating layer (1) and the length difference at lower insulating layer (2) both ends.