CN102299004B - Variable capacitor - Google Patents
Variable capacitor Download PDFInfo
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- CN102299004B CN102299004B CN 201010208857 CN201010208857A CN102299004B CN 102299004 B CN102299004 B CN 102299004B CN 201010208857 CN201010208857 CN 201010208857 CN 201010208857 A CN201010208857 A CN 201010208857A CN 102299004 B CN102299004 B CN 102299004B
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Abstract
The invention discloses a variable capacitor, comprising a substrate, a shell forming an in-shell space with the substrate, and an insulating strip body, an electrode body, an operating body and an offsetting spring arranged in the in-shell space. The substrate comprises a plate body, a detection electrode arranged at a top surface of the plate body, and at least one connection electrode arranged at the top surface of the plate body and distributed at outside of the detection electrode; the shell comprises a connecting sheet connected with the connection electrode; the insulating strip body covers the detection electrode; the electrode body is contacted with the shell, and comprises a pressed part isolated from the insulating strip body, and a contact part extending down from the pressed part, and a contact end contacted against the insulating strip body and opposite to the detection electrode is formed on the contact part; the operating body is arranged on the electrode body and partially extrudes out the shell; and the offsetting spring is used for providing an upward restoring force for the electrode body. Consequently, force is applied on a pressing part and the electrode body is linked, so that the contact end deforms locally to increase the contact area with the insulating strip body.
Description
Technical field
The present invention relates to a kind of capacitor, especially relate to a kind of variable capacitor.
Background technology
Air variable capacitor in the past (air variable capacitor) has the conductive plates of two same rotating shafts that are parallel to each other and share, and both and maintain a certain distance with air separately.Air variable capacitor relatively rotates by two conductive plates, and changes both overlapping areas in the use, so that both formed capacitances change.
Yet the function singleness that air variable capacitor in the past has, and can only be applied to better simply circuit is if when variable capacitor had more functional requirement, need otherwise designed.
Summary of the invention
The objective of the invention is is providing a kind of external circuit that cooperates to try to achieve electric capacitance change and the variable capacitor that records the active force orientation.
Variable capacitor of the present invention comprises a substrate, a shell, an insulation lamellar body, an electrode body, an operating body and a back-moving spring.Substrate comprises that a plate body, is arranged at the detecting electrode of this plate body end face and at least onely is arranged at this plate body end face and is distributed in the outer connecting electrode of this detecting electrode.Shell is conductive material and covers at this substrate forming space in the shell, and comprises that one connects the brace of described connecting electrode.The insulation lamellar body is arranged in the interior space of this shell and is covered in this detecting electrode.Electrode body is conductive silicon colloid and tool pliability, this electrode body is arranged in this shell and contacts in the space and with this shell, and comprise that one is interval in the compression zone of this insulation lamellar body, and one by the contact site of this compression zone to downward-extension, this contact site is formed with one and is connected to this insulation lamellar body and to contact jaw that should the detecting electrode position, this electrode body comprises that also one is connected between this cover top portion internal face and this insulation lamellar body and is connected the connecting portion of this support portion and this compression zone around the support portion and of this compression zone, vertical section of the contact site of described electrode body is tapered, and the contact jaw of described contact site is circular-arc.Operating body is the insulation material, and comprise that a press section and that is interval in this electrode body top and protrudes from this shell extends and be connected to the driving section of this compression zone by this press section to this electrode body, stressed by this press section, and the transmission by this driving section, so that this contact jaw produces local deformation, to increase the contact area of this contact jaw and this insulation lamellar body.Back-moving spring is arranged between this electrode body and this insulation lamellar body, with the restoring force that provides this electrode body to make progress.The central point of each parts of this variable capacitor is all on same vertical line.
Preferably, this support portion is protruding upward in this connecting portion, and by the matching of this support portion and this connecting portion, defines the groove of accommodating this operating body.
Preferably, this back-moving spring is to be socketed on this contact site, and the one end is connected to the diapire of this connecting portion, and the other end is connected to this insulation lamellar body.Or this contact site defines a storage tank for this back-moving spring setting, and this back-moving spring is to be connected between this compression zone diapire face and this insulation lamellar body.
Useful effect of the present invention is: the support portion by electrode body contacts with the top of shell, so that the connecting electrode of electrode body and substrate electrical connection, thus, press section by operating body is stressed, the contact jaw of electrode body produces whole or local distortion, so that the contact area of contact jaw and insulation lamellar body increases, and then change capacitance between contact jaw and detecting electrode, and can try to achieve by external circuit the change and the orientation that records active force of capacitance.So variable capacitor can reach purpose of the present invention really.
Description of drawings
Fig. 1 is a three-dimensional exploded view, and the first preferred embodiment of variable capacitor of the present invention is described;
Fig. 2 is a stereogram, and the electrode body of variable capacitor of the present invention is described;
Fig. 3 is a stereogram, and this variable capacitor that combination is finished is described;
Fig. 4 is a vertical view, and shell and the substrate of variable capacitor of the present invention is described, is to be connected with connecting electrode by brace;
Fig. 5 is a generalized section, and the annexation of each member of variable capacitor of the present invention is described;
Fig. 6 is a stereogram, and the state that variable capacitor of the present invention is stressed is described;
Fig. 7 is a stereogram, and the state that variable capacitor another kind of the present invention is stressed is described;
Fig. 8 is a generalized section, further specifies the state of this variable capacitor pressurized among Fig. 6;
Fig. 9 is a generalized section, further specifies the state of this variable capacitor pressurized among Fig. 7;
Figure 10 is a generalized section, and the second preferred embodiment of variable capacitor of the present invention is described.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
Consult Fig. 1 and Fig. 5, be the first preferred embodiment of variable capacitor of the present invention.Variable capacitor 100 comprises a substrate 1, a shell 2, an insulation lamellar body 3, a back-moving spring 4, an electrode body 5 and an operating body 6, shell 2 covers on the substrate 1, and both match and define space 20 in the shell, and insulation lamellar body 3, back-moving spring 4, electrode body 5 then sequentially from bottom to top are arranged in the interior space 20 of shell with operating body 6.
Such as Fig. 1 and shown in Figure 5, substrate 1 is the insulation material and is square, substrate 1 comprises that a plate body 11, is arranged at plate body 11 end faces and detecting electrode in the form of a ring 12, and most individual plate body 11 end faces connecting electrodes 13 on every side that are arranged at, wherein, detecting electrode 12 also can be other shape, as: hexagon, octagon etc.In the present embodiment, connecting electrode 13 is solder joint, detecting electrode 12 and described connecting electrode 13 (not shown) that all is connected with external circuit.Shell 2 is for conductive material and be the rounding cartridge type, shell 2 comprises that the top 21, of an energy shielding electrode body 5 is by the center on section 22 of top 21 to downward-extension and connection substrate 1, and most individual being arranged at around the brace (weld tabs) 23 of section's 22 root edges and the corresponding described connecting electrode 13 of difference, be welded in connecting electrode 13 by brace 23, so that shell 2 is connected with substrate 1.In addition, top 21 centre are provided with one and open 211.Insulation lamellar body 3 is rounded and is covered on the detecting electrode 12.
Consult Fig. 1, Fig. 2 and Fig. 5, electrode body 5 is conductive silicon colloid and tool pliability, it comprise a support portion 51, that is positioned at the outside be positioned at central authorities and be subjected to compression zone 52, that support portion 51 centers on connect support portion 51 and compression zone 52 connecting portion 53 and one by connecting portion 53 and compression zone 52 junctions to insulation lamellar body 3 extend and vertically section be tapered contact site 54, in simple terms, connecting portion 53 and compression zone 52 are take this contact site 54 as the boundary, peripheral person at contact site 54 is connecting portion 53, and the person of enclosing is compression zone 52 in contact site 54.Support portion 51 is cylindrical, and is connected to top 21 internal faces and 3 of the lamellar bodies of insulation of shell 2, and support portion 51 is protruding upward in connecting portion 53, so match with connecting portion 53 in support portion 51, with the groove 55 that defines an accommodating operating body 6.Compression zone 52 is for the circle thin plate and be interval in insulation lamellar body 3, and connecting portion 53 also is the circle thin plate.Contact site 54 is cylindrical, and is formed with a contact jaw 541 away from compression zone 52 and butt insulation lamellar body 3, and the position of contact jaw 541 is detecting electrodes 12 of corresponding ring-type and is circular arc.In addition, contact site 54 defines a storage tank 542.
Consult Fig. 1 and Fig. 5, back-moving spring 4 is coil spring, and the external diameter of contact site 54 is slightly less than the internal diameter of back-moving spring 4, so back-moving spring 4 is to be socketed on contact site 54, and the one end is connected to the diapire of connecting portion 53, and the other end is connected to insulation lamellar body 3.Operating body 6 is insulation material and rounded cap.Operating body 6 comprises that a press section 61 and that is interval in electrode body 5 tops extends and be connected to the driving section 62 of connecting portion 53 and compression zone 52 junctions by press section 61 to electrode body 5, press section 61 is 211 protruding upward in the top 21 by opening of the top 21 of shell 2, and has one and bestow the acting surface 611 of active force for the user.
The below combination of explanation variable capacitor 100: the lamellar body 3 that at first will insulate is covered on the detecting electrode 12 of substrate 1; Then back-moving spring 4 is placed on the insulation lamellar body 3, and make the contact jaw 541 of electrode body 5 corresponding to the detecting electrode 12 of substrate 1, and the contact site 54 of electrode body 5 is reset 4 frames of spring firmly; With the driving section 62 of operating body 6 in the groove 55 of electrode body 5 and be positioned on the compression zone 52; Opening of shell 2 221 puts the press section 61 of operating body 6, and makes press section 61 stretch out in opening 221.Moreover, make the described brace 23 of shell 2 corresponding to the described connecting electrode 13 of substrate 1, and welded.So far, consult Fig. 3 and Fig. 4, the combination of variable capacitor 100 is all finished, and the central point of variable capacitor 100 each parts is all on same vertical line.
Further specify again variable capacitor 100.Consult Fig. 5, the contact jaw 541 of electrode body 5 is across insulation lamellar body 3 and corresponding with the detecting electrode 12 of substrate 1, and with the thickness of insulation lamellar body 3 and the detecting electrode 12 maintenance certain distances of substrate 1, and owing to support portion 51 contacts with shell 2, so that the current potential of connecting electrode 13 can conduct to by shell 2 contact jaw 541 of electrode body 5.Consult Fig. 6 and Fig. 8, the acting surface 611 of the press section 61 by operating body 6 bears the first active force P1, and namely the centre of press section 61 is stressed, at this moment, the strength of active force P1 will be passed to the whole ring-type contact jaw 541 of electrode body 5, so that contact jaw 541 produces whole distortion; Consult Fig. 7 and Fig. 9, the acting surface 611 of the press section 61 by operating body 6 bears the second active force P2, namely a side of press section 61 (in this embodiment, as shown in the figure) stressed, at this moment, the strength of active force P2 will be passed to electrode body 5 contact jaws 541 corresponding to the stressed side in press section 61 (in this embodiment, as shown in the figure), so that contact jaw 541 produces local distortion, increase whereby the contact area of contact jaw 541 and insulation lamellar body 3, and then change the capacitance of 12 of contact jaw 541 and detecting electrodes.Therefore, be connected external circuit by detecting electrode 12 with connecting electrode 13, do not try to achieve only the change of capacitance, also can record the orientation of active force.Moreover the restoring force that provides electrode body 5 to make progress by back-moving spring 4 is so that electrode body 5 interlock operating bodies 6 homings.
Consult Figure 10, be the second preferred embodiment of variable capacitor of the present invention.Variable capacitor 101 comprises a substrate 1, a shell 2, an insulation lamellar body 3, a back-moving spring 7, an electrode body 5 and an operating body 6, the difference of the variable capacitor 100 of variable capacitor 101 and the first preferred embodiment is, the external diameter of back-moving spring 7 is slightly less than the aperture of the storage tank 542 that contact site 54 defines.So back-moving spring 7 is to be placed in the storage tank 542, and be connected to compression zone 52 diapire faces and 3 of lamellar bodies of insulation, the restoring force that can provide electrode body 5 to make progress equally.All the other narrations are identical with the first preferred embodiment, so do not add to give unnecessary details.
In sum, support portion 51 by electrode body 5 contacts with the top 21 of shell 2, so that connecting electrode 13 electrical connections of electrode body 5 and substrate 1, thus, press section 61 stressed (such as P1, P2) by operating body 6, at this moment, the contact jaw 541 of electrode body 5 produces whole or local distortion, so that the contact area of contact jaw 541 and insulation lamellar body 3 increases, and then change the capacitance of 12 of contact jaw 541 and detecting electrodes, and can try to achieve the change of capacitance and record the orientation of active force by external circuit.So variable capacitor 100,101 can reach purpose of the present invention really.
Claims (4)
1. variable capacitor, it is characterized in that: this variable capacitor comprises:
One substrate comprises that a plate body, is arranged at the detecting electrode of this plate body end face and at least onely is arranged at this plate body end face and is distributed in the outer connecting electrode of this detecting electrode;
One shell for conductive material and cover at this substrate forming space in the shell, and comprises that one connects the brace of this connecting electrode;
One insulation lamellar body is arranged in this shell in the space and is covered in this detecting electrode;
One electrode body, be conductive silicon colloid and tool pliability, this electrode body is arranged in this shell and contacts in the space and with this shell, and comprise that one is interval in the compression zone of this insulation lamellar body, and one by the contact site of this compression zone to downward-extension, this contact site is formed with one and is connected to this insulation lamellar body and to contact jaw that should the detecting electrode position, this electrode body comprises that also one is connected between this cover top portion internal face and this insulation lamellar body and is connected the connecting portion of this support portion and this compression zone around the support portion and of this compression zone, vertical section of the contact site of described electrode body is tapered, and the contact jaw of described contact site is circular-arc;
One operating body, be the insulation material, and comprise that a press section and that is interval in this electrode body top and exposes to this shell extends and be connected to the driving section of this compression zone by this press section to this electrode body, stressed by this press section, and the transmission by this driving section, so that this contact jaw produces local deformation, to increase the contact area of this contact jaw and this insulation lamellar body; And
One back-moving spring is arranged between this electrode body and this insulation lamellar body, with the restoring force that provides this electrode body to make progress;
The central point of each parts of this variable capacitor is all on same vertical line.
2. variable capacitor according to claim 1, it is characterized in that: this support portion is protruding upward in this connecting portion, and by the matching of this support portion and this connecting portion, defines the groove of accommodating this operating body.
3. variable capacitor according to claim 1, it is characterized in that: this back-moving spring is socketed on this contact site, and the one end is connected to the diapire of this connecting portion, and the other end is connected to this insulation lamellar body.
4. variable capacitor according to claim 1 is characterized in that: this contact site defines a storage tank that arranges for this back-moving spring, and this back-moving spring is connected between the compression zone diapire face and this insulation lamellar body of this electrode body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010208857 CN102299004B (en) | 2010-06-25 | 2010-06-25 | Variable capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010208857 CN102299004B (en) | 2010-06-25 | 2010-06-25 | Variable capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102299004A CN102299004A (en) | 2011-12-28 |
| CN102299004B true CN102299004B (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010208857 Expired - Fee Related CN102299004B (en) | 2010-06-25 | 2010-06-25 | Variable capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102299004B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405653B (en) * | 2015-11-13 | 2018-05-08 | 太仓荣中机电科技有限公司 | A kind of fine adjustment type capacitor |
| CN107045940A (en) * | 2017-02-24 | 2017-08-15 | 中国计量大学 | A kind of transducer apparatus of compression spring variable capacitance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101951A (en) * | 1975-07-28 | 1978-07-18 | Murata Manufacturing Co., Ltd. | Variable capacitor |
| CN1185637A (en) * | 1996-12-20 | 1998-06-24 | 株式会社村田制作所 | Variable capacitor |
| CN2870113Y (en) * | 2006-01-26 | 2007-02-14 | 汉王科技股份有限公司 | Capacitance changing apparatus |
-
2010
- 2010-06-25 CN CN 201010208857 patent/CN102299004B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101951A (en) * | 1975-07-28 | 1978-07-18 | Murata Manufacturing Co., Ltd. | Variable capacitor |
| CN1185637A (en) * | 1996-12-20 | 1998-06-24 | 株式会社村田制作所 | Variable capacitor |
| CN2870113Y (en) * | 2006-01-26 | 2007-02-14 | 汉王科技股份有限公司 | Capacitance changing apparatus |
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| Publication number | Publication date |
|---|---|
| CN102299004A (en) | 2011-12-28 |
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Granted publication date: 20130102 Termination date: 20150625 |
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