CN205984997U - Take heat abstractor's change foot preface triode - Google Patents
Take heat abstractor's change foot preface triode Download PDFInfo
- Publication number
- CN205984997U CN205984997U CN201620910841.0U CN201620910841U CN205984997U CN 205984997 U CN205984997 U CN 205984997U CN 201620910841 U CN201620910841 U CN 201620910841U CN 205984997 U CN205984997 U CN 205984997U
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- China
- Prior art keywords
- heat abstractor
- audion
- triode
- packaging body
- silica gel
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Abstract
The utility model discloses a take heat abstractor's change foot preface triode, including packaging body, triode body and heat abstractor, the packaging body is arranged in on the heat abstractor, the packaging body surface is equipped with the mounting hole, the triode body is arranged in inside the packaging body, the lower extreme of triode body is turned right to be equipped with in proper order from a left side and is run through the packaging body and extend to its outside base, projecting pole and collecting electrode, base, projecting pole and collecting electrode are equipped with the protective sheath. The beneficial effects of the utility model are that: through change foot preface under the fixed condition of triode pin interval, reduce the automatic probability that switches on of triode, improve the factor of safety of triode, through addding triode heat abstractor, reduce the risk that the intensity of labour who causes caused the triode to damage greatly and easily in triode and the fin installation, set up the protective sheath at the pin position, prevent to damage the pin at transportation and the in -process of depositing.
Description
Technical field
This utility model is related to audion technical field, more particularly to a kind of change foot sequence three pole with heat abstractor
Pipe.
Background technology
How the on-off circuit of conventional telephone set is made up of a PNP type triode and a NPN type triode.Reference picture
Shown in 1, its circuit structure is：, as input, colelctor electrode is as outfan, base stage and NPN type for the emitter stage of PNP type triode
The colelctor electrode of audion is electrically connected with, and the base stage of NPN type triode is as control end, grounded emitter.When lifting microphone, phase
The testing circuit closing identify after this action to NPN type triode base stage, the positive bias-voltage of emitter stage one so that NPN type triode
Saturation conduction so that PNP type triode emitter stage, base stage obtain positive bias-voltage, PNP type triode saturation conduction, thus being logical
Words and dial-up circuit are powered.When on-hook, testing circuit stops base stage for NPN triode after detecting this action, emitter stage carries
For positive bias-voltage, NPN triode is ended so that PNP triode is off state.When being in hook state it is, PNP triode
Base stage, there is the voltage difference of about 48V between colelctor electrode, thus adsorbing dust, the time of tide is equal to accesses a leakage in circuit
The base stage of PNP triode and colelctor electrode are turned on, now the 48V voltage of PNP type triode emitter stage passes through by resistance R indirectly
R3 can add a positive bias-voltage with base stage so that PNP type triode conducting to emitter stage, leads to the automatic line taking of telephone set；Drawing
Foot's position setting protective case, prevents from damaging pin in transport with during depositing；Set up heat abstractor for audion, reduce by three
Caused high labor intensive and the risk easily causing audion damage in pole pipe and fin installation process.
Content of the invention
In order to solve the problems, such as above-mentioned prior art, the purpose of this utility model is to provide a kind of band heat abstractor
Change foot sequence audion, reduce audion automatic by the case that audion pin-pitch is fixing by changing foot sequence
The probability of conducting, improves the safety coefficient of audion.By setting up audion heat abstractor, reduce audion and install with fin
During caused high labor intensive and the risk easily causing audion damage.Protective case is set at pin position, prevents
Pin is damaged during transporting and depositing.
The technical solution adopted in the utility model is：A kind of change foot sequence audion with heat abstractor, including packaging body,
Audion body and heat abstractor, described packaging body is placed on heat abstractor, and described packaging body surface is provided with installing hole, and described three
Pole pipe body is placed in package interior, and the lower end of described audion body is sequentially provided with from left to right to be run through packaging body and extend to
Its outside base stage, emitter and collector, described base stage, emitter and collector are provided with protective case.
It is preferred that, described heat abstractor includes fin, securing member and compressing member, and described fin is provided with length
Hole, the width of described elongated hole is less than the diameter of installing hole, and the length of described elongated hole is more than the diameter of installing hole, and described securing member sets
For being punctured into long in the hole, described securing member is provided with screw thread, and described securing member one end is fixedly connected with for being connected to elongated hole
On clamp, described clamp is vertical with securing member to be connected, and the length of described clamp is less than the diameter of installing hole, described securing member
The threaded compressing member of the other end, the face that described compressing member is contacted with packaging body is provided with aluminium flake.
It is preferred that, the lower surface of described fin is provided with installing plate, and described installing plate is provided with for being fixed
Fastening bolt on circuit boards.
It is preferred that, described protective case includes the first silica gel piece and the second silica gel piece, described first silica gel piece and
Second silica gel piece is interconnected by flexible connection piece, is provided with three equal flat type holes of spacing in described first silica gel piece, described
The bottom of the second silica gel piece is provided with three and the flat type aperture width groove all equal with spacing.
It is preferred that, described base stage, the exposed parts of emitter and collector are set to insulate.
The beneficial effects of the utility model are：
1st, by changing foot sequence in the case that audion pin-pitch is fixing, reduce between transistor base and colelctor electrode
Electric leakage leads to the probability that audion turns on automatically, effectively improves the safety coefficient of audion；
2nd, by setting up audion heat abstractor, audion and caused labor intensity in fin installation process are reduced
Risk that is big and easily causing audion damage；
3rd, protective case is set at pin position, prevents from damaging pin in transport with during depositing.
Brief description
Fig. 1 is the structural representation of existing telephone machine electronic switching circuit.
Fig. 2 is the structural representation of this utility model main body.
Fig. 3 is the structural representation of this utility model protective case.
Fig. 4 is the top view of this utility model first layer of silica gel.
Fig. 5 is the structural representation of this utility model installing plate.
Wherein：
Packaging body -1 audion body -2 base stage -3
Emitter stage -4 colelctor electrode -5 heat abstractor -6
Installing hole -7 protective case -8 fin -61
Elongated hole -62 securing member -63 clamp -64
Compressing member -65 installing plate -66 first silica gel piece -81
Second silica gel piece -82 flat type hole -83 groove -84
Flexible connection piece -85
Specific embodiment
With embodiment, the technical solution of the utility model is illustrated below in conjunction with the accompanying drawings.
With reference to shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a kind of change foot sequence audion with heat abstractor, including packaging body 1,
Audion body 2 and heat abstractor 6, described packaging body 1 is placed on heat abstractor 6, and described packaging body 1 surface is provided with installing hole 7,
Described audion body 2 is placed in inside packaging body 1, and the lower end of described audion body 2 is sequentially provided with from left to right runs through encapsulation
Body 1 simultaneously extends to its outside base stage 3, emitter stage 4 and colelctor electrode 5, and described base stage 3, emitter stage 4 and colelctor electrode 5 are provided with protection
Set 8, by changing foot sequence in the case that audion pin-pitch is fixing, reduces and leaks electricity between transistor base 3 and colelctor electrode 5
The probability leading to audion automatically to turn on, effectively improves the safety coefficient of audion.
Described heat abstractor 6 includes fin 61, securing member 63 and compressing member 65, and described fin 61 is provided with elongated hole
62, the width of described elongated hole 62 is less than the diameter of installing hole 7, and the length of described elongated hole 62 is more than the diameter of installing hole 7, described tight
Firmware 63 is set to can be punctured in elongated hole 62, and described securing member 63 is provided with screw thread, and described securing member 63 one end is fixedly connected with
For the clamp 64 being connected on elongated hole 62, described clamp 64 is vertical with securing member 63 to be connected, and the length of described clamp 64 is less than
The diameter of installing hole 7, the threaded compressing member of the other end 65 of described securing member 63.Described compressing member 65 is connected with packaging body 1
Tactile face is provided with aluminium flake.By setting up audion heat abstractor 6, reduce audion caused with fin 61 installation process
High labor intensive and easily cause audion damage risk, be easy to production application.Aluminium flake be located at compressing member 65 and packaging body 1 it
Between, and contact with each other, enhance heat transfer, improve the heat dispersion of audion.
The lower surface of described fin 61 is provided with installing plate 66, and described installing plate 66 is provided with for being fixed in circuit board
On fastening bolt.Described installing plate 66 is provided with the fastening bolt for being fixed on circuit boards, strengthens the steady of entirety
Qualitative, prevent from dropping.
Described protective case 8 includes the first silica gel piece 81 and the second silica gel piece 82, described first silica gel piece 81 and the second silica gel
Piece 82 is interconnected by flexible connection piece 85, is provided with three equal flat type holes 83 of spacing, institute in described first silica gel piece 81
The bottom stating the second silica gel piece 82 is provided with three and the flat type hole 83 width groove 84 all equal with spacing.In base stage 3, transmitting
Pole 4 and colelctor electrode 5 setting protective case 8, prevent from damaging base stage 3, emitter stage 4 and colelctor electrode 5 in transport with during depositing.Should
Protective case 8 adopts flexible connection piece 85, is adapted to the audion of various gauge size, strong applicability.
The exposed parts of described base stage 3, emitter stage 4 and colelctor electrode 5 be set to insulate, it is to avoid audion in the course of the work because
The phenomenon being short-circuited for the touching of base stage 3, emitter stage 4 and colelctor electrode 5.
Above-described embodiment is only that of the present utility model ultimate principle, principal character and advantage have been shown and described.The industry
Technical staff it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model also can
There are various changes and modifications, these changes and improvements both fall within the range of claimed this utility model.
Claims (5)
1. a kind of change foot sequence audion with heat abstractor it is characterised in that：Including packaging body (1), audion body (2) and
Heat abstractor (6), described packaging body (1) is placed on heat abstractor (6), and described packaging body (1) surface is provided with installing hole (7), institute
State audion body (2) and be placed in packaging body (1) inside, the lower end of described audion body (2) is sequentially provided with from left to right to be run through
Packaging body (1) simultaneously extends to its outside base stage (3), emitter stage (4) and colelctor electrode (5), described base stage (3), emitter stage (4) and
Colelctor electrode (5) is provided with protective case (8).
2. a kind of change foot sequence audion with heat abstractor according to claim 1 it is characterised in that：Described radiating dress
Put (6) and include fin (61), securing member (63) and compressing member (65), described fin (61) is provided with elongated hole (62), described
The width of elongated hole (62) is less than the diameter of installing hole (7), and the length of described elongated hole (62) is more than the diameter of installing hole (7), described
Securing member (63) is set to can be punctured in elongated hole (62), and described securing member (63) is provided with screw thread, described securing member (63) one end
It is fixedly connected with the clamp (64) for being connected on elongated hole (62), described clamp (64) is vertical with securing member (63) to be connected, institute
State clamp (64) length be less than installing hole (7) diameter, the threaded compressing member of the other end (65) of described securing member (63),
The face that described compressing member (65) is contacted with packaging body (1) is provided with aluminium flake.
3. a kind of change foot sequence audion with heat abstractor according to claim 2 it is characterised in that：Described fin
(61) lower surface is provided with installing plate (66), and described installing plate (66) is provided with the fastening spiral shell for being fixed on circuit boards
Bolt.
4. a kind of change foot sequence audion with heat abstractor according to claim 1 it is characterised in that：Described protective case
(8) the first silica gel piece (81) and the second silica gel piece (82) are included, described first silica gel piece (81) and the second silica gel piece (82) are by bullet
Property connection sheet (85) interconnect, be provided with three equal flat type holes (83) of spacing in described first silica gel piece (81), described
The bottom of the second silica gel piece (82) is provided with three grooves (84) all equal with spacing of the width with flat type hole (83).
5. a kind of change foot sequence audion with heat abstractor according to claim 1 it is characterised in that：Described base stage
(3), the exposed parts of emitter stage (4) and colelctor electrode (5) are set to insulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910841.0U CN205984997U (en) | 2016-08-19 | 2016-08-19 | Take heat abstractor's change foot preface triode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910841.0U CN205984997U (en) | 2016-08-19 | 2016-08-19 | Take heat abstractor's change foot preface triode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205984997U true CN205984997U (en) | 2017-02-22 |
Family
ID=58032201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620910841.0U Active CN205984997U (en) | 2016-08-19 | 2016-08-19 | Take heat abstractor's change foot preface triode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205984997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742641A (en) * | 2017-10-27 | 2018-02-27 | 温州市洞头立德电子有限公司 | A kind of triode with shock-absorbing function |
-
2016
- 2016-08-19 CN CN201620910841.0U patent/CN205984997U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742641A (en) * | 2017-10-27 | 2018-02-27 | 温州市洞头立德电子有限公司 | A kind of triode with shock-absorbing function |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |