CN1155740A - Variable resistor for high voltage - Google Patents
Variable resistor for high voltage Download PDFInfo
- Publication number
- CN1155740A CN1155740A CN96120197A CN96120197A CN1155740A CN 1155740 A CN1155740 A CN 1155740A CN 96120197 A CN96120197 A CN 96120197A CN 96120197 A CN96120197 A CN 96120197A CN 1155740 A CN1155740 A CN 1155740A
- Authority
- CN
- China
- Prior art keywords
- link
- electrode
- contact portion
- spring section
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000005452 bending Methods 0.000 description 3
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/06—Adjustable resistors adjustable by short-circuiting different amounts of the resistive element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
- H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
Abstract
The invention provides a variable resistor for high voltage by which connecting terminals can easily be handled without twisting of connecting terminals and the contact and continuity between the connecting terminals and electrode be also obtained stably and securely. A connecting terminal 7 has a spring part 7b which is bent to a curved shape, and the spring part 7b is provided with an electrode contact part 7d with larger width than the part 7b on the tip part thereof. The terminal 7 is housed and fixed in the connecting terminal housing part within a case in such a manner that the part 7d is press-fitted to an electrode formed on a board.
Description
The present invention relates to the high-voltage varistor that equipment such as television receiver are used.
The non-high-voltage varistor that is welded to connect of common input and output lead-in wire comprises array structure down, and the electrode that wherein is formed on substrate and the conductive rubber is in the conduction contact condition; The part of link is inserted among the conductive rubber; And lead-in wire inserts in the link.But the problem that this high-voltage varistor exists is, adopts conductive rubber to increase components number, and because the increase of tie point quantity, connection reliability also descends to some extent.
At above-mentioned situation, the applicant visualizes a kind of structure, wherein provides spring at link, and the part of spring contacts with electrode on being formed at substrate in the mode that compresses, thereby electrode can only be linked to each other by link with lead-in wire.For example, a kind of high-voltage varistor (Japanese patent application No.-260527/1994) with structure shown in Fig. 5-7 has been proposed.Fig. 5 is the side sectional view of high-voltage varistor.The broken section exploded view of the structure that Fig. 6 holds for expression is used to be clamped and connected.Fig. 7 is used to be clamped and connected the cutaway view of end parts.
In high-voltage varistor as shown in Figure 5, the substrate that is made of the pottery of alumina and so on 2 is bonding and be fixed on the stepped portions of box 1 inner surface that synthetic resin constitutes, and a side of box 1 has perforate; The rotating shaft 5 that sliding contact 4 is housed is by supporting in the face of the bearing portions 1a on the box 1 open side zone; And epoxy resin 3 is mold formed at the back of the substrate 2 of box 1 open side (above among Fig. 5).
The sidewall of lead-in wire grip tube 1b and box 1 is integrally formed.Link holding portion 6 is integrally formed with inner angular region part, and the angular region part links to each other with lead-in wire grip tube 1b.Link 7 is positioned at the inside of link holding portion 6, contacts with termination electrode conduction on being formed at substrate 2.Output lead 8 inserts lead-in wire grip tube 1b and links to each other with link 7.Focus voltage, screen pressure etc. are from 8 outputs that go between.
Shown in the Fig. 6 and 7 after amplifying, by being processed to form link 7 in the sheet metal upper punch, link 7 comprises the spring section 7b that links to each other near tetragonal lead-in wire coupling part 7a (three brace 7c that extend to middle body from the edge part are arranged on it) and with lead-in wire coupling part 7a one side and curve curve shape.
The direction bending that every bump contacted chip 7c inserts in the precalculated position along lead-in wire.Spring section 7b is formed at the centre of lead-in wire coupling part 7a one side, and the top is to the substrate 2 and the direction bending of inserting along lead-in wire, thereby has played the effect of spring.In order to obtain certain spring performance, spring section 7b forms with predetermined width.Hundreds and thousands of links 7 are kept in packaging bag or the workbin randomly.
Link holding portion 6 comprise end holding tank 6a and the brace holding tank 6b that is positioned on box 1 bottom surface and be positioned on box 1 open side, cross sectional shape is near circular spring housing portion 6c.Brace holding tank 6b also extends into spring housing portion 6c.The stepped portions that forms on the open side of link holding portion 6 and box 1 inner surface at grade.
The lead-in wire coupling part 7a of link 7 is clamped among the end holding tank 6a of link holding portion 6, and the part of spring section 7b contacts with output terminal electrode 2a and pushed down by substrate 2, thereby is contained and be fixed in the link holding portion 6.The heart line 8a of the lead-in wire 8 that inserts by lead-in wire grip tube 1b is touched sheet 7c and clamps, thereby links to each other with link 7.
Though do not draw, yet the input terminal electrode, earth terminal electrode etc. of input high pressure all are formed at the surface (lower surface among Fig. 5) of substrate 2, and the film resistor that comprises required pattern form (the rheostat part with arc) is formed between input terminal electrode and the earth terminal electrode.And, though do not draw, lead end or ground connection and the lead-in wire used of input high pressure and are drawn from the open side of box 1 by welding, be connected with above-mentioned termination electrode with mode such as conductive rubber contact.
But, when from workbin, extracting each link out, if because the end of the spring section 7b of a link 7 enters the dashing in the processing part of lead-in wire coupling part 7a of other links, thereby the words that link 7 is wound up mutually, just need to separate troublesomely each link 7, so just increase the installation difficulty of link, and in separation process, also can cause their distortion.
And in above-mentioned high-voltage varistor, the spring section 7b of link 7 makes bending, and is being consistent along width on the direction of whole length.Therefore the termination electrode 2a and the contact area between the electrode contact portion of substrate 2 are less.For example, if when having the exotic of insulating properties between the electrode contact portion of spring section 7b and termination electrode 2a, contact condition will be unstable, causes conducting electricity bad thus.
Therefore target of the present invention provides a kind of high-voltage varistor, it has solved the problem that exists in the above-mentioned high-voltage varistor and has avoided the winding of link, thereby makes link be convenient to install and improved the reliability and stability that contact between link and the electrode.
In order to reach above target, according to a first aspect of the present invention, provide a kind of high-voltage varistor, comprising: the box of recording quantity forms the link holding portion in it; Be formed with film resistor and electrode on it and be inclusive in the interior substrate of box; The rotating shaft that sliding contact is installed on it and supports by box; And be included in and be used for the link of connection electrode or film resistor and input and output lead-in wire in the link holding portion.
This high-voltage varistor is characterised in that link comprises curved spring section; Provide and electrode or film resistor electrodes in contact contact portion in the end of spring section; And the width of electrode contact portion is greater than the width of spring section.
According to a second aspect of the present invention, high-voltage varistor is provided, it is characterized in that having slit in the electrode contact portion cuts apart the electrode contact portion.
In said structure, the width of electrode contact portion that is positioned at spring end has prevented that the electrode contact portion from entering the processing part that dashes of lead-in wire coupling part, thereby has avoided link to wind up mutually greater than the width of other parts.And, because the expansion of the contact area between electrode contact portion and the electrode, so contact and conduction are all more stable and reliable.
In addition, it is contacted with electrode with spring pressure, reduced the loose contact that causes by exotic, improved the stability and the reliability of conduction by the electrode contact portion being divided into several portions.
Fig. 1 is the perspective view according to the high-voltage varistor link of the first embodiment of the present invention.
Fig. 2 is the cutaway view according to the part of the link of the clamping high-voltage varistor of the first embodiment of the present invention.
Fig. 3 is the perspective view according to the high-voltage varistor link of the second embodiment of the present invention.
Fig. 4 is the perspective view according to the high-voltage varistor link of another embodiment of the present invention.
Fig. 5 is the cutaway view of common high-voltage varistor link.
Fig. 6 is the broken section exploded perspective illustration of common high-voltage varistor link clamp structure.
Fig. 7 is the cutaway view of the part of the common high-voltage varistor link of clamping.
The present invention will describe by following examples.In the accompanying drawings, with prior art in parts consistent, corresponding or that function is identical represent with same label.
Fig. 1 and 2 represents the structure according to the high-voltage varistor of first embodiment of the invention.Fig. 1 is the perspective view of link, and Fig. 2 is the cutaway view of part of end of being clamped and connected.
In the high-voltage varistor of as illustrated in fig. 1 and 2 present embodiment, be formed with the electrode contact portion 7d of width greater than other parts in the end of the spring section 7b of link 7.Electrode contact portion 7d approaches tetragonal plane and is connected as a single entity with spring section 7b.The plane of electrode contact portion 7d is done so that it contacts with electrode 2a with whole surface, thereby the links 7 that are included in the link holding portion 6 is contacted and by its compressing with fix with substrate 2.
The width of electrode contact portion 7d greater than the lead-in wire peripheral part of coupling part 7a and brace 7c towards the gap between the processing part.Link 7 is except the shape of spring section 7b, and other structures are identical with prior art, no longer describes here.
After lead-in wire coupling part 7a is held in the end holding tank 6a of link holding portion 6, link 7 promptly is held in the link holding portion 6, box 1 is put into and be fixed on to substrate 2, thereby electrode contact portion 7d is contacted with electrode 2a on the substrate 2.
In the link 7 of present embodiment, because the width of the electrode contact portion 7d that provides in the end of spring section 7b is greater than other parts, so electrode contact portion 7d can not enter in the gap of lead-in wire 7a upper punch processing part, coupling part.This has made things convenient for the assembling of link 7.
And, compare with structure according to prior art, because the wider width of electrode contact portion 7d, thereby it is contacted with electrode 2a face, reliable so electric conductivity is stable.
In the above-described embodiments, though electrode contact portion 7d contacts with electrode 2a with whole surface, the present invention is not limited thereto, and electrode contact portion 7d also can be configured to curve form.
Next, Fig. 3 shows the structure according to the link of second embodiment of the invention.
As shown in Figure 3, in the link 7 of present embodiment, be positioned on the electrode contact portion 7d of spring section 7b end and be formed with slit 7e, electrode contact portion 7d is divided into two by slit 7e.Slit 7e roughly is positioned at the central authorities of electrode contact portion 7d Width, and the end from electrode contact portion 7d extends to the part that is connected with spring section 7b thus.
Except above-mentioned electrode contact portion 7d, other structures all are basically the same as those in the first embodiment, and repeat no more here.
Under this structure, thereby because two parts that electrode contact portion 7d is divided into two and provides the pressure with spring to contact with electrode by slit 7e so reduced the probability of the bad contact that is caused by exotic, have improved the stability and the reliability of conducting electricity.That is to say,, but still can obtain stable and reliable electric conductivity from another part even on a part of separating, have exotic.
Though the electrode contact portion of describing in above-mentioned each embodiment, its shape are all near quadrangle, the shape of electrode contact portion is not limited thereto, and also can adopt circular or other shapes as shown in Figure 4.In brief, as long as being formed at the width of the part of spring section end and electrode contact portion, the electrode contact portion just is enough to meet the demands greater than the width of spring section and the gap that dashes between the processing part of lead-in wire coupling part.
And the shape of link lead-in wire coupling part, the shape of box 1 link holding portion etc. are not limited to described in the foregoing description.
As mentioned above, in according to high-voltage varistor of the present invention, owing to provide the electrode contact portion of width greater than other parts in the end of link spring section, thus avoided the mutual winding of link, thus made things convenient for the assembling of link.
And, because the contact area between electrode contact portion and the electrode is bigger, the reliable electric conductivity so obtained stable.
And it is bad to make electrode contact portion division can reduce the conduction that exotic causes, thereby makes electric conductivity more stable and reliable.
Though just specific embodiment of the present invention has been done elaboration above, but it will be apparent to one skilled in the art that, under the prerequisite that does not depart from flesh and blood of the present invention, be easy to the present invention is made various modifications and change, so the spirit and scope of the present invention are limited by following claims.
Claims (3)
1. high-voltage varistor, comprise: the inner box that forms the recording quantity of link holding portion, be formed with film resistor on it with electrode and be included in the substrate of described cassette interior, sliding contact is arranged on it and by the rotating shaft of described box supporting and be included in and be used for being connected described electrode or film resistor and the link that input and output go between in the described link holding portion, it is characterized in that comprising:
Be positioned on the described link and curve the spring section of curve shape; And
Provide in the end of described spring section with described electrode or film resistor electrodes in contact contact portion, wherein, the width of described electrode contact portion is greater than the width of described spring section.
2. high-voltage varistor, comprise: the inner box that forms the recording quantity of link holding portion, be formed with film resistor on it with electrode and be included in the substrate of described cassette interior, sliding contact is arranged on it and by the rotating shaft of described box supporting and be included in and be used for being connected described electrode or film resistor and the link that input and output go between in the described link holding portion, it is characterized in that described link comprises:
The lead-in wire coupling part that has dashing of some braces to be processed to form that is used for the described lead-in wire of clamping;
Extend out from described lead-in wire coupling part and curve the spring section of curve shape; And
Provide in the end of described spring section with described electrode or film resistor electrodes in contact contact portion, wherein,
The wire interconnecting piece that the size and dimension of described electrode contact portion makes some described links hold or link can not enter another link when storing together divides dashes the processing part.
3. high-voltage varistor as claimed in claim 1 or 2 is characterized in that having slit to cut apart described electrode contact portion in described electrode contact portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP257872/95 | 1995-10-04 | ||
| JP7257872A JP3036410B2 (en) | 1995-10-04 | 1995-10-04 | High-voltage variable resistor |
| JP257872/1995 | 1995-10-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1155740A true CN1155740A (en) | 1997-07-30 |
| CN1077323C CN1077323C (en) | 2002-01-02 |
Family
ID=17312355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96120197A Expired - Fee Related CN1077323C (en) | 1995-10-04 | 1996-09-26 | Variable resistor for high voltage |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP3036410B2 (en) |
| KR (1) | KR100235502B1 (en) |
| CN (1) | CN1077323C (en) |
| MX (1) | MX9604562A (en) |
| MY (1) | MY123755A (en) |
| TW (1) | TW454929U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2004049511A1 (en) | 2002-11-28 | 2006-03-30 | 旭硝子株式会社 | Electrical connection structure for conductors formed on glass surfaces |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2591294Y2 (en) * | 1992-11-27 | 1999-03-03 | 北陸電気工業株式会社 | High voltage resistance pack |
| JPH07254504A (en) * | 1994-12-20 | 1995-10-03 | Hokuriku Electric Ind Co Ltd | Electronic component and electronic component for high voltage |
-
1995
- 1995-10-04 JP JP7257872A patent/JP3036410B2/en not_active Expired - Fee Related
-
1996
- 1996-09-13 TW TW089220722U patent/TW454929U/en not_active IP Right Cessation
- 1996-09-24 MY MYPI96003926A patent/MY123755A/en unknown
- 1996-09-26 CN CN96120197A patent/CN1077323C/en not_active Expired - Fee Related
- 1996-10-03 MX MX9604562A patent/MX9604562A/en not_active IP Right Cessation
- 1996-10-04 KR KR1019960043900A patent/KR100235502B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TW454929U (en) | 2001-09-11 |
| JPH09102406A (en) | 1997-04-15 |
| CN1077323C (en) | 2002-01-02 |
| KR970023477A (en) | 1997-05-30 |
| JP3036410B2 (en) | 2000-04-24 |
| MX9604562A (en) | 1998-04-30 |
| KR100235502B1 (en) | 1999-12-15 |
| MY123755A (en) | 2006-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020102 Termination date: 20120926 |