CN103077789B - A kind of secure PTC starter - Google Patents
A kind of secure PTC starter Download PDFInfo
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- CN103077789B CN103077789B CN201210582784.4A CN201210582784A CN103077789B CN 103077789 B CN103077789 B CN 103077789B CN 201210582784 A CN201210582784 A CN 201210582784A CN 103077789 B CN103077789 B CN 103077789B
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- reed
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- salient point
- ptc
- chip
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Abstract
The present invention relates to a kind of starter, particularly relate to a kind of safety-type PTC starter preventing chip surface contact puncture short because of electric spark.Comprise the PTC chip with the first electrode surface and the second electrode surface, described PTC chip is placed in upper shell, electric installation and fixing supportive device is provided with in described upper shell, described electric installation comprises the first reed and the second reed, and described first reed is provided with laterally zygomorphic first contact-making surface and the second contact-making surface; The second described reed is provided with laterally zygomorphic 3rd contact-making surface and the 4th contact-making surface, and described first reed connects the first inserted sheet, and the second reed connects the second inserted sheet; Described fixing supportive device comprises the first insulation salient point and the second insulation salient point, and PTC chip is subject to the bias force of the first reed and the generation of the second reed, is obtained support by the second insulation salient point and the first insulation salient point.
Description
Technical field
The present invention relates to a kind of starter, particularly relate to a kind of safety-type PTC starter preventing chip surface contact puncture short because of electric spark.
Background technology
PTC starter is widely used on the assistant starting of compressor, because compressor start is frequent, and the heavy current impact that subject startup moment that starter chip is up to ten thousand times.The connected mode of current starter inside is switch jaw contact formula, and PTC chip surface electrode is the conductive capability of the quality of silver-plated structure, contact point material, chip electrode layer, and the tightness degree of contact all can affect the performance of starter.Particularly abnormal voltage or abnormal current, can cause the damage of getting an electric shock.If continuing current flow flows into, can there is the phenomenon of sparking or silver layer scorification in the electric shock position that electric spark occurs further.Repeatedly for several times, PTC can be chipping, switch jaw contact short circuit, causes more serious destruction.Serious causes the thawing of insulating material and the burning of periphery electrical equipment.
In prior art, reed is symmetrically distributed in the both sides of PTC chip, once there be the phenomenon punctured, the chip that between reed, easily clamping is cracked, produces the possibility of short circuit.In addition, the design of some asymmetric contact modes, contact multidigit line of reed and chip, once occur that electric spark occurs in contact, starter resistance can increase at once, and the increase of contact point Joule heat can expand electrode scorification face further, and the result causing chip cracks is inevitable.
Therefore, a kind of safer structure is needed.When the electric current charged into causes electric shock damage, described multiple contact-making surfaces can reduce the further deterioration of damage contact; The mal-distribution of contact point also after chip is completely cracked, can reduce the possibility of two interpolar conducting short circuits.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of safety-type PTC starter preventing chip surface contact puncture short because of electric spark.
For solving the problems of the technologies described above, the invention provides a kind of secure PTC starter: comprise the PTC chip with the first electrode surface and the second electrode surface, described PTC chip is placed in upper shell, electric installation and fixing supportive device is provided with in described upper shell, described electric installation comprises the first reed and the second reed, described first reed is provided with laterally zygomorphic first contact-making surface and the second contact-making surface, and described two contact-making surfaces contact up and down with the right side of the first electrode surface is half side; The second described reed is provided with laterally zygomorphic 3rd contact-making surface and the 4th contact-making surface, described two contact-making surfaces contact up and down with the right side of the second electrode surface is half side, the central point projection of described four contact-making surfaces can be connected to form a rectangle, described first reed connects the first inserted sheet, and the second reed connects the second inserted sheet; Described fixing supportive device comprises the first insulation salient point and the second insulation salient point that upper shell sets firmly, described first insulation salient point and the second reed Relative distribution are in the both sides of PTC chip, second insulation salient point and the first reed Relative distribution are in the both sides of PTC chip, PTC chip is subject to the bias force of the first reed and the generation of the second reed, obtained by the second insulation salient point and the first insulation salient point and support, thus PTC chip is kept vertically.
As preferably, described first contact-making surface, the second contact-making surface and insulation salient point rectangular Triangle-Profile on PTC chip first electrode surface; 3rd contact-making surface, the 4th contact-making surface and insulation salient point rectangular Triangle-Profile on PTC chip second electrode surface, the hypotenuse of two right-angled triangles intersects.
As preferably, described first insulation salient point and the second insulation salient point are arranged on the bottom of upper shell.
As preferably, in described upper shell, be provided with the first wedge shape column corresponding with described first reed position, and the second wedge shape column corresponding with described second reed position, so as to make two reeds respectively with chip close contact.
As preferably, described first reed and the first inserted sheet and between the second reed with the second inserted sheet by welding or riveting.
As preferably, described upper shell is configured with lower house, and described upper shell and lower house are riveted by corresponding rivet hole contraposition.
As preferably, described PTC chip is circular.
The present invention can reduce PTC chip because contact produces electric spark under big current effect repeatedly, and contact-making surface molten condition progressively becomes large possibility; Meanwhile, when chip is completely cracked, reduces and produce gripping object between reed, avoid the phenomenon of short circuit.PTC starter of the present invention comprises PTC chip, reed with two contact-making surfaces under the active force of wedge shape column with an electrode surface close contact of PTC chip, the reed on chip both sides applies asymmetric active force to chip, and two insulation salient points of upper shell indoor design make chip overcome the bias force of reed, and be erected in the middle of housing.Two reeds are respectively with two contact-making surfaces, and the projection of four contact-making surface central points is rectangular, and two contact-making surfaces in the same side and two contact-making surfaces of opposite side distinguish the different semicircle of two of contact chips.The object of such design increases contact area, improves the withstanding current capability of chip, meanwhile, any contact-making surface occur electric spark and loose contact time, another contact-making surface on same reed can keep the unobstructed of electric current, the destruction repeatedly of point of avoiding striking sparks.After chip destroys completely, fragment can come off by the bias force of reed, shortly after preventing chip cracks is short-circuited.
Accompanying drawing explanation
Accompanying drawing 1 is the structure cutaway view of a kind of secure PTC starter of the present invention.
Accompanying drawing 2 is the internal structure schematic diagram of a kind of secure PTC starter of the present invention.
Accompanying drawing 3 is the external structure schematic diagram of a kind of secure PTC starter of the present invention.
Accompanying drawing 4 is the STRUCTURE DECOMPOSITION figure of a kind of secure PTC starter of the present invention.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, be described in further detail technical scheme of the present invention, obviously, described embodiment is only section Example of the present invention.
Embodiment 1:
See accompanying drawing 1 ~ 4, a kind of secure PTC starter of the present invention, comprise the circular PTC chip 6 with the first electrode surface 6-1 and the second electrode surface 6-2, described PTC chip 6 is placed in upper shell 1, electric installation and fixing supportive device is provided with in described upper shell 1, described electric installation comprises the first reed 7 and the second reed 8, and described first reed 7 is provided with laterally zygomorphic first contact-making surface 7-1 and the second contact-making surface 7-2, and described two contact-making surfaces contact up and down with the right side of the first electrode surface 6-1 is half side; The second described reed 8 is provided with laterally zygomorphic 3rd contact-making surface 8-1 and the 4th contact-making surface 8-2, described two contact-making surfaces contact up and down with the right side of the second electrode surface 6-2 is half side, the central point projection of described four contact-making surfaces can be connected to form a rectangle, described first reed 7 connects the first inserted sheet 3, second reed 8 and connects the second inserted sheet 4; Described fixing supportive device comprises the first insulation salient point 12 and the second insulation salient point 11 that upper shell 1 sets firmly, described first insulation salient point 12 and the second reed 8 Relative distribution are in the both sides of PTC chip 6, second insulation salient point 11 and the first reed 7 Relative distribution are in the both sides of PTC chip 6, PTC chip 6 is subject to the bias force of the first reed 7 and the generation of the second reed 8, obtained by the second insulation salient point 11 and the first insulation salient point 12 and support, thus make described chip 6 keep vertical.
Described first contact-making surface 7-1, the second contact-making surface 7-2 and insulation salient point 12 rectangular Triangle-Profile on PTC chip first electrode surface 6-1; 3rd contact-making surface 8-1, the 4th contact-making surface 8-2 and insulation salient point 11 rectangular Triangle-Profile on PTC chip second electrode surface 6-2, the hypotenuse of two right-angled triangles intersects, and base part can be overlapping.Described first insulation salient point 12 and the second insulation salient point 11 are arranged on the bottom of upper shell 1.
The first wedge shape column 9 corresponding with described first reed 7 position is provided with in described upper shell 1, and the second wedge shape column 10 corresponding with described second reed 8 position, so that make two reeds respectively with PTC chip 6 close contact, described first reed 7 is with the first inserted sheet 3 and pass through between the second reed 8 with the second inserted sheet 4 to weld or riveting, described upper shell 1 is configured with lower house 2, and described upper shell and lower house are riveted by corresponding rivet hole 5 contraposition.
Wherein the first inserted sheet 3 the first location hole 14, second inserted sheet 4 inserted on upper shell 1 inserts the second location hole 15 on upper shell 1; PTC chip 6 can be inserted in space between four contact-making surfaces, puts into bottom upper shell bottom PTC chip; The first wedge shape column 9 in upper shell is utilized to force first of the first reed 7 the contact dough sheet 7-1 and the second contact-making surface 7-2 closely to conflict to chip 6; Meanwhile, the second wedge shape column 10 in upper shell forces the 3rd contact-making surface 8-1 of the second reed 8 and the 4th contact-making surface 8-2 closely to conflict to PTC chip 6; Insulation salient point 11 bottom upper shell and insulation salient point 12 pairs of PTC chip 6 are corrected, and make it vertical.
Structure of the present invention is simple, easily manufactured, and can reduce PTC chip because contact produces electric spark under big current effect repeatedly, contact-making surface molten condition progressively becomes large possibility; Meanwhile, when PTC chip is completely cracked, reduces and produce gripping object between reed, avoid the phenomenon of short circuit.
Should be understood that above-described embodiment is only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Claims (6)
1. a secure PTC starter, it is characterized in that: comprise the PTC chip (6) with the first electrode surface (6-1) and the second electrode surface (6-2), described PTC chip (6) is placed in upper shell (1), electric installation and fixing supportive device is provided with in described upper shell (1), described electric installation comprises the first reed (7) and the second reed (8), described first reed (7) is provided with laterally zygomorphic first contact-making surface (7-1) and the second contact-making surface (7-2), described two contact-making surfaces contact up and down with the right side of the first electrode surface (6-1) is half side, described the second reed (8) is provided with laterally zygomorphic 3rd contact-making surface (8-1) and the 4th contact-making surface (8-2), described two contact-making surfaces contact up and down with the right side of the second electrode surface (6-2) is half side, the central point projection of described four contact-making surfaces can be connected to form a rectangle, described first reed (7) connects the first inserted sheet (3), and the second reed (8) connects the second inserted sheet (4), described fixing supportive device comprises the first insulation salient point (12) and second that upper shell (1) sets firmly and to insulate salient point (11), described first insulation salient point (12) and the both sides of the second reed (8) Relative distribution in PTC chip (6), second insulation salient point (11) and the both sides of the first reed (7) Relative distribution in PTC chip (6), PTC chip (6) is subject to the bias force that the first reed (7) and the second reed (8) produce, obtained by the second insulation salient point (11) and the first insulation salient point (12) and support, thus make PTC chip (6) keep vertically, the first wedge shape column (9) corresponding with described first reed (7) position is provided with in described upper shell (1), and the second wedge shape column (10) corresponding with described second reed (8) position so that make two reeds respectively with PTC chip (6) close contact.
2. secure PTC starter according to claim 1, is characterized in that: described first contact-making surface (7-1), the second contact-making surface (7-2) and the first insulation salient point (12) are at the upper rectangular Triangle-Profile of PTC chip first electrode surface (6-1); 3rd contact-making surface (8-1), the 4th contact-making surface (8-2) and the second insulation salient point (11) are at the upper rectangular Triangle-Profile of PTC chip second electrode surface (6-2), and the hypotenuse of two right-angled triangles intersects.
3. secure PTC starter according to claim 1 and 2, is characterized in that: described first insulation salient point (12) and the second insulation salient point (11) are arranged on the bottom of upper shell (1).
4. secure PTC starter according to claim 1, is characterized in that: described first reed (7) is with the first inserted sheet (3) and pass through between the second reed (8) with the second inserted sheet (4) to weld or riveting.
5. secure PTC starter according to claim 1, is characterized in that: described upper shell (1) is configured with lower house (2), and described upper shell and lower house are riveted by corresponding rivet hole (5) contraposition.
6. secure PTC starter according to claim 1, is characterized in that: described PTC chip is for circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582784.4A CN103077789B (en) | 2012-12-28 | 2012-12-28 | A kind of secure PTC starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582784.4A CN103077789B (en) | 2012-12-28 | 2012-12-28 | A kind of secure PTC starter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103077789A CN103077789A (en) | 2013-05-01 |
| CN103077789B true CN103077789B (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210582784.4A Active CN103077789B (en) | 2012-12-28 | 2012-12-28 | A kind of secure PTC starter |
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| Country | Link |
|---|---|
| CN (1) | CN103077789B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386815A (en) * | 2011-11-18 | 2012-03-21 | 常熟市天银机电股份有限公司 | Integrated motor starting and protecting device with improved structure |
| CN202335131U (en) * | 2011-11-14 | 2012-07-11 | 何敦启 | Positive temperature coefficient (PTC) sheet skewed-type clamping structure for refrigerator starter |
| CN203085304U (en) * | 2012-12-28 | 2013-07-24 | 孝感华工高理电子有限公司 | Safe PTC (Positive Temperature Coefficient) starter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001128416A (en) * | 1999-10-27 | 2001-05-11 | Matsushita Refrig Co Ltd | Starter of motor |
| JP2002313605A (en) * | 2001-04-16 | 2002-10-25 | Matsushita Refrig Co Ltd | Motor starter |
-
2012
- 2012-12-28 CN CN201210582784.4A patent/CN103077789B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202335131U (en) * | 2011-11-14 | 2012-07-11 | 何敦启 | Positive temperature coefficient (PTC) sheet skewed-type clamping structure for refrigerator starter |
| CN102386815A (en) * | 2011-11-18 | 2012-03-21 | 常熟市天银机电股份有限公司 | Integrated motor starting and protecting device with improved structure |
| CN203085304U (en) * | 2012-12-28 | 2013-07-24 | 孝感华工高理电子有限公司 | Safe PTC (Positive Temperature Coefficient) starter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103077789A (en) | 2013-05-01 |
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