CN207250259U - A kind of piezoresistor and electronic equipment for surface mounting technology - Google Patents
A kind of piezoresistor and electronic equipment for surface mounting technology Download PDFInfo
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- CN207250259U CN207250259U CN201721784542.8U CN201721784542U CN207250259U CN 207250259 U CN207250259 U CN 207250259U CN 201721784542 U CN201721784542 U CN 201721784542U CN 207250259 U CN207250259 U CN 207250259U
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Abstract
The utility model embodiment is related to piezoresistor field, more particularly to a kind of piezoresistor applied to surface mounting technology, and piezoresistor includes, shell, resistor body, the first pin and second pin；The resistor body is contained in the inside of shell, described first pin one end is connected to resistor body, the other end of first pin is pierced by shell and the outer surface with being affixed on shell, described second pin one end is connected to resistor body, and the other end of the second pin is pierced by shell and is affixed on the outer surface of shell；First pin and second pin are fixedly welded on resistor body；The shell is fitted closely with resistor body, the first pin, second pin, without gap.By the above-mentioned means, the utility model embodiment can realize the function of patch resistor, and it is compact-sized.
Description
Technical field
The utility model embodiment is related to piezoresistor technical field, is used for surface mounting technology more particularly to one kind
Piezoresistor and electronic equipment.
Background technology
Surface mounting technology, is exactly SMT (abbreviation of Surface Mounted Technology), is current Electronic Assemblies
Most popular a kind of technology and technique in industry.And patch varistors is a kind of varistor appliance component, it is mainly used for
Surface mounting technology.
But inventor is in the process of implementing the utility model, it is found that there are problems with for the prior art：Traditional
In patch varistors, intensity is poor, and the reactance voltage ability of traditional piezoresistor is poor, may be only available for mobile phone,
On digital product, use scope is small.
Utility model content
The utility model embodiment is mainly solving the technical problems that provide a kind of resistor for surface mounting technology.
In order to solve the above technical problems, the technical solution that the utility model embodiment uses is：There is provided a kind of pressure-sensitive
Resistor, applied to surface mounting technology, including：Shell, resistor body, the first pin and second pin；The resistance
Device main body is contained in the inside of shell, and described first pin one end is connected to resistor body, the other end of first pin
Shell and the outer surface with being affixed on shell are pierced by, described second pin one end is connected to resistor body, the second pin
The other end is pierced by shell and is affixed on the outer surface of shell；First pin and second pin are fixedly welded on resistor body；
The shell is fitted closely with resistor body, the first pin, second pin, without gap.
Wherein, the shell includes top shell portion and bottom shell portion；The top shell portion detachably connects with bottom shell portion
Connect.
Wherein, the end face in the close bottom shell portion in the top shell portion is equipped with positioning pin；The bottom shell portion it is close
The end face in top shell portion is equipped with location hole；Location hole is inserted into by positioning pin or is extracted from location hole, so that the top shell
Portion is installed or removed with bottom shell portion.
Wherein, the resistor body be plug-in type ceramic varistor device, including first electrode, second electrode and
Ceramic dielectric；The outer contour of the ceramic dielectric is cuboid, and the first electrode and second electrode are respectively embedded in cuboid
Two opposite sides；The first electrode is connected to the first pin；The second electrode is connected to second pin.
Wherein, the first electrode and second electrode are using copper material or silver-colored material.
Wherein, the ceramic dielectric is made of the big porcelain powder material of voltage gradient.
Wherein, first pin includes the first connection sheet, the second connection sheet, the 3rd connection sheet, the 4th connection sheet, the 5th
Connection sheet, the 6th connection sheet and the 7th connection sheet；The side of second connection sheet extends the first connection sheet, and described second
Connection sheet is extended with the 3rd connection sheet, the extension side of first connection sheet and the 3rd connection sheet away from the side of the first connection sheet
To opposite；3rd connection sheet is extended with the 4th connection sheet away from the side of the second connection sheet, the 4th connection sheet and the
Two connection sheets are located at the same side of the 3rd connection sheet；4th connection sheet is extended with the 5th company away from the side of the 3rd connection sheet
Contact pin, the extending direction of the 5th connection sheet are opposite with the extending direction of the 3rd connection sheet；5th connection sheet is away from the
The side of four connection sheets is extended with the 6th connection sheet, the extending direction of the 6th connection sheet and the extending direction of the 4th connection sheet
Conversely；6th connection sheet is extended with the 7th connection sheet, the extension of the 7th connection sheet away from the side of the 5th connection sheet
Direction is identical with the extending direction of the 5th connection sheet；First connection sheet is fixed on electricity away from the one side fitting of the 3rd connection sheet
Hinder device main body.
Wherein, the second pin includes the 8th connection sheet, the 9th connection sheet, the tenth connection sheet, the tenth a connecting piece, the
12 connection sheets, the 13rd connection sheet and the 14th connection sheet；Side extension and the 8th connection sheet of 9th connection sheet,
8th connection sheet is extended with the tenth connection sheet, the 8th connection sheet and the tenth connection sheet away from the side of the 7th connection sheet
Extending direction it is opposite；Tenth connection sheet is extended with the tenth a connecting piece away from the side of the 9th connection sheet, and the described tenth
A connecting piece and the 9th connection sheet are located at the same side of the tenth connection sheet；Described tenth a connecting piece deviates from the one of the tenth connection sheet
Side is extended with the 12nd connection sheet, and the extending direction of the 12nd connection sheet is opposite with the extending direction of the tenth connection sheet；Institute
State the 12nd connection sheet and be extended with the 13rd connection sheet, the extension of the 13rd connection sheet away from the side of the tenth a connecting piece
Direction is identical with the extending direction of the tenth a connecting piece；13rd connection sheet is extended with away from the side of the 12nd connection sheet
14th connection sheet, the extending direction of the 14th connection sheet are identical with the extending direction of the 12nd connection sheet；Described 8th
Connection sheet is fixed on resistor device main body away from the one side fitting of the tenth connection sheet.
Wherein, first pin and second pin use tinning steel-in-copper piece.
The utility model also provides a kind of electronic equipment, and the electronic equipment includes piezoresistor as described above.
The beneficial effect of the utility model embodiment is：The situation of the prior art is different from, the utility model embodiment
A kind of piezoresistor, applied to surface mounting technology, it is characterised in that including：Shell, resistor body, the first pin with
And second pin；The resistor body is contained in the inside of shell, and described first pin one end is connected to resistor body, institute
The other end for stating the first pin is pierced by shell and the outer surface with being affixed on shell, and described second pin one end is connected to resistor master
Body, the other end of the second pin are pierced by shell and are affixed on the outer surface of shell；First pin and second pin welding
It is fixed on resistor body；The shell is fitted closely with resistor body, the first pin, second pin, without gap.Pass through
Aforesaid way, the utility model embodiment can realize the function of patch varistors device, and compact-sized.
Brief description of the drawings
One or more embodiments are illustrative by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not formed to embodiment, the element for having same reference numbers label in attached drawing are expressed as similar element, remove
Non- have a special statement, and composition does not limit the figure in attached drawing.
Fig. 1 is the structure diagram for the piezoresistor that one embodiment of the utility model provides；
Fig. 2 is the diagrammatic cross-section of the piezoresistor shown in Fig. 1；
Fig. 3 is the structure diagram of the first pin of the piezoresistor shown in Fig. 2；
Fig. 4 is the structure diagram of the second pin of the piezoresistor shown in Fig. 2.
Specific embodiment
For the ease of understanding the utility model, below in conjunction with the accompanying drawings and specific embodiment, the utility model is carried out more detailed
Thin explanation.It should be noted that when element is expressed " being fixed on " another element, it can be directly in another element
Above or therebetween there may be one or more elements placed in the middle.When an element is expressed " connection " another element, it can
To be directly to another element or there may be one or more elements placed in the middle therebetween.This specification is used
Term " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, the skill of technical and scientific term all used in this specification with belonging to the utility model
The normally understood implication of technical staff in art field is identical.In the art used in the description of the utility model in this specification
Language is intended merely to the purpose of description specific embodiment, is not intended to limitation the utility model.Term used in this specification
"and/or" includes the arbitrary and all combination of one or more relevant Listed Items.
Please refer to Fig.1 and Fig. 2, the utility model embodiment provide a kind of piezoresistor 100, the piezoresistor
100 are applied to surface mounting technology, the piezoresistor 100 include shell 10, resistor body 20, the first pin 30 and
Second pin 40, resistor body 20 are contained in the inside of shell 10, and described first pin, 30 one end is connected to resistor body
20, the other end of first pin 30 is pierced by shell 10 and is affixed on the outer surface of shell 10, and described 40 one end of second pin connects
Resistor body 20 is connected to, the other end of the second pin 40 is pierced by shell and is affixed on the outer surface of shell 10.
First pin 30 and second pin 40 are fixedly welded on resistor body 20；
The shell 10 is fitted closely with resistor body 20, the first pin 30, second pin 40, without gap.
In the present embodiment, referring back to Fig. 1 and Fig. 2, above-mentioned shell 10 includes top shell portion 101 and is connected to top
The bottom shell portion 102 in shell portion 101, the outer contour substantially cuboid in the top shell portion 101, the bottom shell portion 102 it is outer
The general shape of profile is similar with top shell portion 101, and the side being connected with top shell portion 101 in the bottom shell portion 102 is set
There is first through hole 103, the bottom shell portion 102 is equipped with the second through hole 104 away from the side of first through hole 103, and described first is logical
The position in hole 103 is corresponding with the position of the second through hole 104, and the bottom 107 in the bottom shell portion 102 is close to first through hole 103
Side be equipped with the first groove body 105, the bottom 107 in the bottom shell portion 102 is equipped with the second groove close to the side of the second through hole 104
Body 106.
In the present embodiment, the top shell portion 101 is detachably connected with bottom shell portion 102.
Specifically, the end face in the close bottom shell portion 102 in the top shell portion 101 is equipped with positioning pin (not shown)；It is logical
Cross positioning pin (not shown) insertion location hole (not shown) or extracted from location hole (not shown), so that the top shell portion 101
Installed or removed with bottom shell portion 102.
The shell 10 draws resistor body 20, a part for the first pin 30 and second for the mode of injection molding packaging
A part for foot 40 is contained in inside shell 10, the inner cavity of the shell 10 and resistor body 20, one of the first pin 30
Divide and a part for second pin 40 does not have gap, the volume of piezoresistor 100 is reduced as much as possible.
Further, the material of the shell 10 meets fire-protection rating UL94-VO.Flammable UL94 grades are most widely used
Performance standard that general plastic material is flammable.Flammable UL94 is used for evaluating the ability that material extinguishes after being ignited.
Referring back to Fig. 2, in the present embodiment, above-mentioned resistor body 20 is the ceramic resistor of plug-in type, including the
One electrode 201, second electrode 202 and ceramic dielectric 203, the outer contour substantially cuboid of the ceramic dielectric 203 are described
First electrode 201 and second electrode 202 are circular foil member, and the first electrode 201 and second electrode 202 are embedded in respectively
Two opposite sides of cuboid, the first electrode 201 is parallel to second electrode 202.
In the present embodiment, the first electrode 201 and second electrode 202 use copper material, can improve silver electrode
Point discharge and caused by failure, improve piezoresistor 100 reliability.
Alternatively, the first electrode 201 and second electrode 202 are using silver-colored material.
In the present embodiment, the ceramic dielectric 203 is made of the big porcelain powder material of voltage gradient.
Referring to Fig. 4, in the present embodiment, above-mentioned first pin 30 is made up of bullion piece of seaming operation, bag
Include the first connection sheet 301, the second connection sheet 302, the 3rd connection sheet 303, the 4th connection sheet 304, the 5th connection sheet the 305, the 6th
306 and the 7th connection sheet 307 of connection sheet.
The side of second connection sheet 302 extends the first connection sheet 301, second connection sheet 302 it is opposite
Side is extended with the 3rd connection sheet 303, and the 3rd connection sheet 303 is parallel to the first connection sheet 301, and first connection sheet
301 and the 3rd connection sheet 303 be located at the not homonymy of the second connection sheet 302；3rd connection sheet 303 deviates from the second connection sheet
302 side is extended with the 4th connection sheet 304, and the 4th connection sheet 304 connects perpendicular to the 3rd connection sheet 303, the described 4th
304 and second connection sheet 302 of contact pin is located at 303 the same side of the 3rd connection sheet；4th connection sheet 304 deviates from the 3rd connection sheet
303 side is extended with the 5th connection sheet 305, and the 5th connection sheet 305 connects perpendicular to the 4th connection sheet 304, the described 5th
305 and the 3rd connection sheet 303 of contact pin is located at the not homonymy of the 4th connection sheet 304；5th connection sheet 305 is away from the 4th connection
The side of piece 304 is extended with the 6th connection sheet 306, and the 6th connection sheet 306 is perpendicular to the 5th connection sheet 305, and the described 6th
306 and the 4th connection sheet 304 of connection sheet is located at the not homonymy of the 5th connection sheet 305；6th connection sheet 306 connects away from the 5th
The side of contact pin 305 is extended with the 7th connection sheet 307, and the 7th connection sheet 307 is perpendicular to the 6th connection sheet 306, and described
Seven connection sheets 307 and the 5th connection sheet 305 are located at the same side of the 6th connection sheet 306.
Referring to Fig. 4, in the present embodiment, above-mentioned second pin 40 is made up of bullion piece of seaming operation, bag
Include the 8th connection sheet 401, the 9th connection sheet 402, the tenth connection sheet 403, the tenth a connecting piece 404, the 12nd connection sheet 405,
13rd connection sheet 406 and the 14th connection sheet 407.
The side of 9th connection sheet 402 extends the 8th connection sheet 401, the 9th connection sheet 402 it is opposite
Side is extended with the tenth connection sheet 403, and the tenth connection sheet 403 is parallel to the 8th connection sheet 401, and the 8th connection sheet
401 and the tenth connection sheet 403 be located at the not homonymy of the 9th connection sheet 402；Tenth connection sheet 403 deviates from the 9th connection sheet
402 side is extended with the tenth a connecting piece 404, and described tenth a connecting piece 404 is perpendicular to the tenth connection sheet 403, and described
Ten a connecting piece 404 and the 9th connection sheet 402 are located at the same side of the tenth connection sheet 403；Described tenth a connecting piece 404 deviates from
The side of tenth connection sheet 403 is extended with the 12nd connection sheet 405, and the 12nd connection sheet 405 is perpendicular to the 11st connection
Piece 404, the 12nd connection sheet 405 and the tenth connection sheet 403 are located at the not homonymy of the tenth a connecting piece 404；Described tenth
Two connection sheets 405 are extended with the 13rd connection sheet 406, the 13rd connection sheet 406 away from the side of the tenth a connecting piece 404
Perpendicular to the 12nd connection sheet 405, the 13rd connection sheet 406 and the tenth a connecting piece 404 are located at the 12nd connection sheet 405
The same side；13rd connection sheet 406 is extended with the 14th connection sheet 407 away from the side of the 12nd connection sheet 405, institute
The 14th connection sheet 407 is stated perpendicular to the 13rd connection sheet 406, the 14th connection sheet 407 and the 12nd connection sheet 405
In the same side of the 13rd connection sheet 406.
In the present embodiment, first pin 30 and second pin 40 use tinning steel-in-copper piece, possess it good
Good wetting welding effect.
During assembling, the resistor body 20 is contained in shell 10；First connection sheet 301 of first pin 30 deviates from
One end of second connection sheet 302 fits in the first electrode 201 of resistor body 20, the 8th connection sheet of the second pin 40
401 away from the fitting of one end of the 9th connection sheet 402 and the second electrode 202 of resistor body 20；The of first pin 30
Five connection sheets 305 pass through first through hole 103, and the 6th connection sheet 206 is close to shell close to one end of the 5th connection sheet 205
The corresponding side in 10 bottom shell portion 102, the 7th connection sheet 207 fit in close to the side of the 5th connection sheet 205
One groove body 105；12nd connection sheet 405 of the second pin 40 passes through the second through hole 104, the 13rd connection sheet 406
The corresponding side in the bottom shell portion 102 of shell 10, the 14th connection are close to close to one end of the tenth a connecting piece 404
Piece 407 fits in the second groove body 106 close to the side of the tenth connection sheet 403.
In the present embodiment, the 7th connection sheet 307, the 12nd connection sheet 405 away from the one of resistor body 20
Face maintains an equal level with the bottom 107 in the bottom shell portion 102 of shell 10.
In the present embodiment, first connection sheet 301 and first electrode 201 are using by the way of welding and resistor body
20 fix, for reducing the first pin 30 and the impedance of first electrode 201；8th connection sheet 401 is with second electrode 202 using weldering
The mode connect is fixed, for reducing the impedance of second pin 40 and second electrode 202.
In use, the bottom of the 7th connection sheet 307 of piezoresistor 100, the 14th connection sheet 407 and shell 10
107 fittings are installed on printed circuit plate surface using surface mounting technology.
Compared with conventional patch varistor, the performance of the piezoresistor 100 is more excellent, table specific as follows：
Compact-sized, the saving space of the piezoresistor 100, package dimension are divided into 3325 and 4,032 two kind, specifically
Size such as following table：
The suppression high surge current ability of the piezoresistor 100 is strong, its electrical characteristic is as shown in the table：
The piezoresistor 100 is designed as the small inductor amount structure of fast reaction.
The operating temperature range of the piezoresistor 100：- 40 DEG C to+85 DEG C.
The storage temperature scope of the piezoresistor 100：- 40 DEG C to+125 DEG C.
Compared with prior art, it is a kind of new by the way that the resistor body of plug-in unit resistor is made up of the encapsulation of shell
There is the piezoresistor of patch, it is pressure-resistant suitable for surface installation technique, such as the resistor body of plug-in unit resistor
Ability is stronger than patch varistors proof voltage ability, so the resistor can be applied to Switching Power Supply, LED power, frequency converter
It is wider than the conventional patch varistors scope of application Deng industrial products.
In addition, the piezoresistor is applicable not only to the Reflow Soldering of surface installation technique, wave-soldering is also applied for.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly used in
Other related technical areas, are equally included in the patent within the scope of the utility model.
Claims (10)
- A kind of 1. piezoresistor, applied to surface mounting technology, it is characterised in that including：Shell, resistor body, first Pin and second pin；The resistor body is contained in the inside of shell, and described first pin one end is connected to resistor body, and described first The other end of pin is pierced by shell and the outer surface with being affixed on shell, and described second pin one end is connected to resistor body, institute The other end for stating second pin is pierced by shell and is affixed on the outer surface of shell；First pin and second pin are fixedly welded on resistor body；The shell is fitted closely with resistor body, the first pin, second pin, without gap.
- 2. piezoresistor according to claim 1, it is characterised in that the shell includes top shell portion and bottom shell Portion；The top shell portion is detachably connected with bottom shell portion.
- 3. piezoresistor according to claim 2, it is characterised in that the one of the close bottom shell portion in the top shell portion End face is equipped with positioning pin；The end face in the close top shell portion in the bottom shell portion is equipped with location hole；Location hole is inserted into by positioning pin or is extracted from location hole, so that the top shell portion is installed or removed with bottom shell portion.
- 4. piezoresistor according to claim 1, it is characterised in that the resistor body is pressed for the ceramics of plug-in type Sensitive resistor, including first electrode, second electrode and ceramic dielectric；The outer contour of the ceramic dielectric is cuboid, and the first electrode and second electrode are respectively embedded in the opposite of cuboid Two sides；The first electrode is connected to the first pin；The second electrode is connected to second pin.
- 5. piezoresistor according to claim 4, it is characterised in that the first electrode and second electrode use copper material Matter or silver-colored material.
- 6. piezoresistor according to claim 4, it is characterised in that the ceramic dielectric is using the big porcelain of voltage gradient Powder material is made.
- 7. piezoresistor according to claim 1, it is characterised in that first pin includes the first connection sheet, the Two connection sheets, the 3rd connection sheet, the 4th connection sheet, the 5th connection sheet, the 6th connection sheet and the 7th connection sheet；The side of second connection sheet extends the first connection sheet, and second connection sheet is prolonged away from the side of the first connection sheet Stretching has the 3rd connection sheet, and first connection sheet is opposite with the extending direction of the 3rd connection sheet；3rd connection sheet is extended with the 4th connection sheet away from the side of the second connection sheet, and the 4th connection sheet connects with second Contact pin is located at the same side of the 3rd connection sheet；4th connection sheet is extended with the 5th connection sheet, the extension side of the 5th connection sheet away from the side of the 3rd connection sheet To opposite with the extending direction of the 3rd connection sheet；5th connection sheet is extended with the 6th connection sheet, the extension side of the 6th connection sheet away from the side of the 4th connection sheet To opposite with the extending direction of the 4th connection sheet；6th connection sheet is extended with the 7th connection sheet, the extension side of the 7th connection sheet away from the side of the 5th connection sheet To identical with the extending direction of the 5th connection sheet；First connection sheet is fixed on resistor body away from the one side fitting of the 3rd connection sheet.
- 8. piezoresistor according to claim 1, it is characterised in that the second pin includes the 8th connection sheet, the Nine connection sheets, the tenth connection sheet, the tenth a connecting piece, the 12nd connection sheet, the 13rd connection sheet and the 14th connection sheet；Side extension and the 8th connection sheet of 9th connection sheet, the 8th connection sheet are prolonged away from the side of the 7th connection sheet Stretching has the tenth connection sheet, and the 8th connection sheet is opposite with the extending direction of the tenth connection sheet；Tenth connection sheet is away from the The side of nine connection sheets is extended with the tenth a connecting piece, and described tenth a connecting piece and the 9th connection sheet are located at the tenth connection sheet The same side；Described tenth a connecting piece is extended with the 12nd connection sheet away from the side of the tenth connection sheet, the 12nd connection sheet Extending direction is opposite with the extending direction of the tenth connection sheet；12nd connection sheet is extended with the 13rd connection sheet, the 13rd connection sheet away from the side of the tenth a connecting piece Extending direction it is identical with the extending direction of the tenth a connecting piece；13rd connection sheet is extended with the 14th connection sheet, the 14th connection sheet away from the side of the 12nd connection sheet Extending direction it is identical with the extending direction of the 12nd connection sheet；8th connection sheet is fixed on resistor device main body away from the one side fitting of the tenth connection sheet.
- 9. according to claim 1 or 7 or 8 any one of them piezoresistors, it is characterised in that first pin and second Pin uses tinning steel-in-copper piece.
- 10. a kind of electronic equipment, it is characterised in that the electronic equipment includes the pressure-sensitive electricity of claim 1 to 9 any one of them Hinder device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721784542.8U CN207250259U (en) | 2017-12-19 | 2017-12-19 | A kind of piezoresistor and electronic equipment for surface mounting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721784542.8U CN207250259U (en) | 2017-12-19 | 2017-12-19 | A kind of piezoresistor and electronic equipment for surface mounting technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207250259U true CN207250259U (en) | 2018-04-17 |
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ID=61883186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721784542.8U Active CN207250259U (en) | 2017-12-19 | 2017-12-19 | A kind of piezoresistor and electronic equipment for surface mounting technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207250259U (en) |
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2017
- 2017-12-19 CN CN201721784542.8U patent/CN207250259U/en active Active
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