CN109546893A - A kind of PTC starter - Google Patents
A kind of PTC starter Download PDFInfo
- Publication number
- CN109546893A CN109546893A CN201910078635.6A CN201910078635A CN109546893A CN 109546893 A CN109546893 A CN 109546893A CN 201910078635 A CN201910078635 A CN 201910078635A CN 109546893 A CN109546893 A CN 109546893A
- Authority
- CN
- China
- Prior art keywords
- ptc
- chip
- block
- electrode plate
- limited block
- 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.)
- Pending
Links
- 239000007858 starting material Substances 0.000 title claims abstract description 29
- 230000002787 reinforcement Effects 0.000 claims abstract description 41
- 239000003063 flame retardant Substances 0.000 claims abstract description 16
- 210000003205 muscle Anatomy 0.000 claims description 2
- 238000013467 fragmentation Methods 0.000 abstract description 10
- 238000006062 fragmentation reaction Methods 0.000 abstract description 10
- 239000012634 fragment Substances 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/02—Details of starting control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/02—Details of starting control
- H02P1/027—Special design of starting resistor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Thermistors And Varistors (AREA)
Abstract
The present invention discloses a kind of PTC starter, including can resilient clamp object two electrode plates be arranged in a staggered manner PTC chip two sides both ends clamping electrical connection, the the first limited block dislocation for being electrically insulated fire-retardant is pushed against the side of PTC chip opposite first pole plate, the the second fire-retardant limited block that is electrically insulated is pushed against side of the middle part with respect to second electrode plate of PTC chip, first electrode plate is between the first limited block and the second limited block, the side of PTC chip is arranged in respect to the second limited block for the fire-retardant block reinforcement that is electrically insulated, the block reinforcement and PTC chip have gap, the block reinforcement is also located between the second limited block and second electrode plate.The structure prevents fragmentation chip from tilting toward side by block reinforcement, which can also block the block chip sliver, and the block chip sliver and another chip piece sliver or second electrode plate are obstructed, chip sliver is prevented to be connected to first electrode plate and second electrode plate again.
Description
Technical field
The present invention relates to a kind of compressor starter, specifically a kind of PTC starter.
Background technique
PTC chip is a kind of incorporation trace rare-earth element, the barium titanate-type semiconductor of ceramic process processing has positive temperature
Spend the thermistor of characteristic.It is at normal temperature in Low ESR, concatenation is in circuit channel status, when making element itself by electric current
After fever, impedance is steeply risen, and is in high-impedance state.Usually PTC starter is connected in the auxiliary winding circuit of access compressor, is compressed
Machine flows through starting winding electric current when starting increases PTC element temperature rapidly, flows through the electric current of PTC chip because of PTC chip
Temperature increase and reduce, and compressor just enters normal operation at this time.
The PTC chip of existing PTC starter is typically mounted at the inner space of box body, and electrode plate is mounted on PTC chip
Opposite sides connect with external terminal.As shown in Figure 1, this kind of structure occurs there is the side of pushing open when failure is split in PTC chip
To uncertainty, the electrode plate positioned at PTC chip two sides is easy PTC chip nubbin to continue stable clamp；Or
Electrode plate can not clamp one end of PTC chip, and PTC chip nubbin, which is again positioned between two electrode plates to play connection and be powered, to be made
With, and the PTC chip at this moment to fail is that do not have positive temperature characterisitic, electric current will continue to by PTC chip nubbin, the knot
Structure is equivalent to short circuit, will lead to high temperature generation on fire.
Summary of the invention
The present invention, which provides one kind, can prevent PTC chip from contacting in the state of fragmentation with two electrode plates, prevent two electrode plates
It is in contact the PTC starter of conducting.
PTC starter of the present invention, including can two electrode plates of resilient clamp object be arranged in a staggered manner in PTC chip two
The both ends of side clamp electrical connection, and the first limited block dislocation for being electrically insulated fire-retardant is pushed against the one of PTC chip opposite first pole plate
Side, the second fire-retardant limited block that is electrically insulated are pushed against side of the middle part with respect to second electrode plate of PTC chip, first electrode plate position
Between the first limited block and the second limited block, the fire-retardant block reinforcement that is electrically insulated is arranged in the one of PTC chip with respect to the second limited block
Side, the block reinforcement and PTC chip have gap, which is also located between the second limited block and second electrode plate.
PTC starter of the present invention, the two of first electrode plate clamping PTC chip two sides opposite with the first limited block
End, second electrode plate and the setting of the second limited block relative misalignment push against PTC chip, pass through two electrode plates and two limited blocks pair of being staggered
The stress point of PTC chip, so that force dispersion, is conducive to preferably clamp PTC chip；By in the second limited block and the second electricity
Block reinforcement is set between pole plate, prevents fragmentation chip from tilting toward second electrode plate side, avoids connecing with second electrode plate end again
Touching；There is gap between block reinforcement and PTC chip, with certain free inclination degree, shearing when first electrode plate squeezes fragmentation chip
Power dispersion, facilitates gripping by the sliver of chip；The block reinforcement of the structure can also cooperate with the second limited block, due to first electrode plate with
The clamping force of first limited block can force and be clamped in first electrode plate and the chip sliver of the first limited block inclines to block reinforcement direction
Tiltedly, block reinforcement can obstruct the block chip sliver in the side of first electrode plate, and the block chip sliver is prevented to fall and second electrode
Plate is in contact conducting again, effectively prevent that high temperature hidden danger on fire occurs because of short circuit.
Detailed description of the invention
Fig. 1 is a kind of existing PTC starter structural schematic diagram.
Fig. 2 is a kind of structural schematic diagram of PTC starter.
Fig. 3 is a kind of one schematic diagram of PTC chip failure state of PTC starter.
Fig. 4 is a kind of two schematic diagram of PTC chip failure state of PTC starter.
Fig. 5 is a kind of line A-A cross-sectional view of PTC starter in Fig. 2.
Fig. 6 is a kind of line B-B cross-sectional view of PTC starter in Fig. 2.
Specific embodiment
As shown in Fig. 2, a kind of PTC starter, including can two electrode plates of resilient clamp object be arranged in a staggered manner in PTC chip
(1) both ends of two sides clamp electrical connection, and the first limited block (4) dislocation for being electrically insulated fire-retardant is pushed against PTC chip (1) opposite first
The side of electrode plate (2), the second limited block (5) for being electrically insulated fire-retardant are pushed against the middle part of PTC chip (1) with respect to second electrode plate
(3) side, first electrode plate (2) is between the first limited block (4) and the second limited block (5), and be electrically insulated fire-retardant block reinforcement
(6) opposite second limited block (5) setting is in the side of PTC chip (1), and there are gap in the block reinforcement (6) and PTC chip (1), the gear
Muscle (6) is also located between the second limited block (5) and second electrode plate (3).What two electrode plates were staggered is arranged in PTC chip two sides
Both ends, two limited blocks being arranged in a staggered manner of cooperation are pushed against the two sides of PTC chip, because two electrode plates are to the abutting position of PTC chip
It sets with two limited blocks to the abutting position of PTC chip not in same straight line, therefore there are shearing forces, clamp PTC chip with this,
When PTC chip is split, since chip sliver is pushed in the elastic deformation of electrode plate open toward opposite direction；Due to being split after chip failure
Piece, which exists to push open, causes apart from excessive first electrode plate and the first limited block to loosen the clamping of PTC chip, by the second limit
Block reinforcement is set between position block and second electrode plate, fragmentation chip is prevented to tilt toward second electrode plate side, is avoided again with second
The contact of electrode plate end；There is gap between block reinforcement and PTC chip, with certain freedom when first electrode plate squeezes fragmentation chip
Gradient, shearing force dispersion, facilitates gripping by the sliver of chip；The block reinforcement of the structure can also cooperate with the second limited block, due to
The clamping force of first electrode plate and the first limited block, can force be clamped in the chip sliver of first electrode plate and the first limited block to
The inclination of block reinforcement direction, block reinforcement can obstruct the block chip sliver in the side of first electrode plate, and the block chip sliver is prevented to fall
It is in contact conducting again with second electrode plate.
As shown in figure 3, PTC chip fracture location is when block reinforcement is close to limited block side, due to first electrode plate and first
Limited block is not to the abutting position of PTC chip in same position, and there are shearing force, one of chip sliver is clamped, should
One end that block chip sliver is not clamped is tilted toward block reinforcement direction, even if the block chip is not by first electrode plate and the first limited block
It clamps, can also be blocked the block chip sliver by block reinforcement, by the block chip sliver and another chip piece sliver or second
Electrode plate barrier, prevents chip sliver to be connected to first electrode plate and second electrode plate again.
As shown in figure 4, PTC chip fracture location is when block reinforcement is close to second electrode plate side, due to first electrode plate and
First limited block to the abutting position of PTC chip not in same position, between there are shearing forces, and block reinforcement and chip surface have
One of chip sliver that gap, first electrode plate and the first limited block clamp is tilted toward block reinforcement direction, and block reinforcement can clamp
The chip sliver, prevents from being in contact with second electrode plate and is connected to.
As shown in figure 5, the PTC starter, there is horizontal height in the top and second electrode plate (3) of the block reinforcement (6)
It spends difference (α)；
The level height difference (α) is 1.1mm-1.3mm；There are difference in level, PTC chips between block reinforcement and second electrode plate
After fragmentation, the reply of second electrode plate stress deformation will not be interfered with block reinforcement, prevent second electrode board from living block reinforcement, lead to the
Two electrode plates and PTC fragment are in contact turning circuit again.
The PTC starter, block reinforcement (6) top are inclined surface (7), and inclined surface is to be directed toward back by the top of block reinforcement
Side in the middle part of to PTC chip；By the way that inclined surface is arranged on block reinforcement top, enough fixations can be provided to PTC chip fragment
Active force.
The PTC starter, the first limited block (4) for being electrically insulated fire-retardant and the first electrode plate (2) without stress
Spacing be less than PTC chip (1) thickness；The second limited block (5) and the second electrode plate without stress for being electrically insulated fire-retardant
(3) spacing is greater than the thickness of PTC chip (1)；After assembling PTC chip, first electrode plate and second electrode plate stress deformation
Clamp PTC chip, PTC chip fails after fragmentation, due to first electrode plate without stress original state when with the first limited block
Spacing is less than the thickness of PTC chip, and first electrode plate is replied original state toward the first limit Block direction, can be clamped positioned at first
The PTC chip fragment of electrode plate and the first limited block；Due to the spacing of the second limited block and the second electrode plate without stress
Greater than the thickness of PTC chip (1), PTC chip fails after fragmentation, broken positioned at second electrode plate and the PTC chip of the second limited block
Block can not be clamped and fall, and effectively prevent PTC chip fragment that first electrode plate and second electrode plate are connected again.
As shown in fig. 6, the PTC starter, first limited block is the cylinder of the rectangular triangle of one side, wherein
One plane and PTC chip face contact push against；The surface of the one side of first limited block and PTC chip is in same parallel surface, the limit
Position block and PTC chip face contact increase contact area, can preferably guarantee the depth of parallelism of PTC chip, preferably clamp PTC
Chip.
The PTC starter, the block reinforcement surface distance PTC chip surface are 0.3mm- 0.5mm；Block reinforcement surface with
PTC chip surface distance be effective distance between 0.3mm-0.5mm, have enough free inclinations after PTC chip sliver fragmentation
Degree guarantees PTC chip sliver surface and the complete face contact in block reinforcement surface, increases fixed function power to PTC chip fragment.
Claims (7)
1. a kind of PTC starter, including can two electrode plates of resilient clamp object be arranged in a staggered manner the two of PTC chip (1) two sides
End clamping electrical connection, the first limited block (4) dislocation for being electrically insulated fire-retardant are pushed against PTC chip (1) opposite first pole plate (2)
Side, the second limited block (5) for being electrically insulated fire-retardant are pushed against side of the middle part with respect to second electrode plate (3) of PTC chip (1),
It is characterized in that, first electrode plate (2), between the first limited block (4) and the second limited block (5), be electrically insulated fire-retardant block reinforcement
(6) opposite second limited block (5) setting is in the side of PTC chip (1), and there are gap in the block reinforcement (6) and PTC chip (1), the gear
Muscle (6) is also located between the second limited block (5) and second electrode plate (3).
2. a kind of PTC starter according to claim 1, which is characterized in that the top of the block reinforcement (6) and second electrode
There are level height difference (α) for plate (3).
3. a kind of PTC starter according to claim 2, which is characterized in that the level height difference (α) is 1.1mm-
1.3mm。
4. a kind of PTC starter according to claim 1, which is characterized in that block reinforcement (6) top is inclined surface (7),
Inclined surface is the side being directed toward in the middle part of PTC chip by the top of block reinforcement.
5. a kind of PTC starter according to claim 1, which is characterized in that the first limited block (4) for being electrically insulated fire-retardant with
The spacing of the first electrode plate (2) of no stress is less than the thickness of PTC chip (1)；The second limited block (5) for being electrically insulated fire-retardant
It is greater than the thickness of PTC chip (1) with the spacing of the second electrode plate (3) of no stress.
6. a kind of PTC starter according to claim 1, which is characterized in that first limited block (4) is one side in straight
The cylinder of angle triangle, one of plane and PTC chip (1) face contact push against.
7. a kind of PTC starter according to claim 1, which is characterized in that block reinforcement (6) the surface distance PTC chip
(1) surface is 0.3mm-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910078635.6A CN109546893A (en) | 2019-01-28 | 2019-01-28 | A kind of PTC starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910078635.6A CN109546893A (en) | 2019-01-28 | 2019-01-28 | A kind of PTC starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109546893A true CN109546893A (en) | 2019-03-29 |
Family
ID=65838756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910078635.6A Pending CN109546893A (en) | 2019-01-28 | 2019-01-28 | A kind of PTC starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109546893A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0478103A (en) * | 1990-07-19 | 1992-03-12 | Murata Mfg Co Ltd | Excess current protective component |
| CN1231055A (en) * | 1996-09-20 | 1999-10-06 | Tdk株式会社 | PTC thermistor device |
| JP2001128416A (en) * | 1999-10-27 | 2001-05-11 | Matsushita Refrig Co Ltd | Starter of motor |
| CN1313607A (en) * | 1995-11-07 | 2001-09-19 | 株式会社村田制作所 | Electronic component for reducing damages of internal components as faults occur |
| CN2805214Y (en) * | 2005-05-17 | 2006-08-09 | 常熟市天银机电有限公司 | Starter for electric motor of compressor |
| CN202150820U (en) * | 2011-05-23 | 2012-02-22 | 刘惠玲 | Energy-saving ptc starter |
| CN202335131U (en) * | 2011-11-14 | 2012-07-11 | 何敦启 | Positive temperature coefficient (PTC) sheet skewed-type clamping structure for refrigerator starter |
| CN206023186U (en) * | 2016-09-23 | 2017-03-15 | 广州森宝电器股份有限公司 | A kind of anti-short-circuit structure of PTC starters |
| CN206023624U (en) * | 2016-09-23 | 2017-03-15 | 广州森宝电器股份有限公司 | A kind of PTC starter fire proof construction |
| CN108667350A (en) * | 2018-07-11 | 2018-10-16 | 广州森宝电器股份有限公司 | A kind of starter with defencive function |
| CN209217977U (en) * | 2019-01-28 | 2019-08-06 | 广州森宝电器股份有限公司 | A kind of PTC starter |
-
2019
- 2019-01-28 CN CN201910078635.6A patent/CN109546893A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0478103A (en) * | 1990-07-19 | 1992-03-12 | Murata Mfg Co Ltd | Excess current protective component |
| CN1313607A (en) * | 1995-11-07 | 2001-09-19 | 株式会社村田制作所 | Electronic component for reducing damages of internal components as faults occur |
| CN1231055A (en) * | 1996-09-20 | 1999-10-06 | Tdk株式会社 | PTC thermistor device |
| JP2001128416A (en) * | 1999-10-27 | 2001-05-11 | Matsushita Refrig Co Ltd | Starter of motor |
| CN2805214Y (en) * | 2005-05-17 | 2006-08-09 | 常熟市天银机电有限公司 | Starter for electric motor of compressor |
| CN202150820U (en) * | 2011-05-23 | 2012-02-22 | 刘惠玲 | Energy-saving ptc starter |
| CN202335131U (en) * | 2011-11-14 | 2012-07-11 | 何敦启 | Positive temperature coefficient (PTC) sheet skewed-type clamping structure for refrigerator starter |
| CN206023186U (en) * | 2016-09-23 | 2017-03-15 | 广州森宝电器股份有限公司 | A kind of anti-short-circuit structure of PTC starters |
| CN206023624U (en) * | 2016-09-23 | 2017-03-15 | 广州森宝电器股份有限公司 | A kind of PTC starter fire proof construction |
| CN108667350A (en) * | 2018-07-11 | 2018-10-16 | 广州森宝电器股份有限公司 | A kind of starter with defencive function |
| CN209217977U (en) * | 2019-01-28 | 2019-08-06 | 广州森宝电器股份有限公司 | A kind of PTC starter |
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| PB01 | Publication | ||
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