CN108667350A - A kind of starter with defencive function - Google Patents
A kind of starter with defencive function Download PDFInfo
- Publication number
- CN108667350A CN108667350A CN201810756188.0A CN201810756188A CN108667350A CN 108667350 A CN108667350 A CN 108667350A CN 201810756188 A CN201810756188 A CN 201810756188A CN 108667350 A CN108667350 A CN 108667350A
- Authority
- CN
- China
- Prior art keywords
- ptc chip
- link
- thermal fuse
- terminal
- ptc
- 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 32
- 239000002184 metal Substances 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000012943 hotmelt Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 2
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000013467 fragmentation Methods 0.000 description 5
- 238000006062 fragmentation reaction Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002633 protecting effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000023753 dehiscence Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H02P1/022—Security devices, e.g. correct phase sequencing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Power Engineering (AREA)
- Fuses (AREA)
Abstract
The invention discloses a kind of starters with defencive function; including box cover and shell; box cover and shell are involutory next formation internal cavity; cavity is built-in with a PTC chip and multiple external terminals; shell inner spring terminal and the second horn mouth terminal are respectively placed in PTC chip both sides and are connected electrically; other end connection thermal fuse-link one end of spring terminal; the other end of thermal fuse-link connects the first horn mouth terminal and N-terminal; the thermal fuse-link constitutes series circuit with PTC chip, and thermal fuse-link is mounted on PTC chip in above-mentioned cavity.Described device composed structure is simple, at low cost；When unusual service condition makes PTC chip generate abnormal high temperature, thermal cut-off can cut off circuit in time, effectively prevent PTC chip is chipping to lead to short circuit, and equipment is avoided therefore to catch fire and cause other safety accidents.
Description
Technical field
The present invention relates to a kind of protective device of electrical equipment more particularly to a kind of compressor starts with defencive function
Device.
Background technology
Existing compressor PTC starters are used for the refrigerator of household and similar applications, and PTC starters have positive temperature
The thermal resistor for spending characteristic, is serially connected on the auxiliary winding of compressor, the posive temperature coefficient thermistor using PTC starters exists
Small resistance value conducting state is under room temperature.When compressor electric motor, which is powered, to be started, electric current flows through thermal resistor and connects compressor
Starting circuit makes compressor electric motor start.Moment is started in compressor electric motor, flowing through the electric current of thermistor makes its resistance reach
High resistant state of value reduces compressor auxiliary winding electric current, compressor electric motor is made to enter normal condition.
PTC starters in practical applications, if there are abnormal conditions during power grid is unstable or electrical equipment operation process, exceed
The limit tolerance range of thermal resistor；When PTC chip ruptures short circuit, part is still connected with circuit, resistor positive temperature characterisitic
Failure will occur continuing heating power phenomenon；Fragmentation contacts position and sparking, phenomenon of arc discharge occurs；The thermistor temperature of fragmentation at this time
Spend high, starter shell will appear phenomenon on fire, or even the refrigerator that can ignite, and cause fire.
Invention content
The present invention provides a kind of PTC starters with defencive function can effectively solve the problem that starter hidden danger on fire, to carry
High equipment safety performance.
A kind of starter with defencive function of the present invention, including box cover and shell, box cover are involutory next with shell
Internal cavity is formed, cavity is built-in with a PTC chip and multiple external terminals, shell inner spring terminal and the second horn mouth terminal
Be respectively placed in PTC chip both sides and be connected electrically, the other end of spring terminal connection thermal fuse-link one end, thermal fuse-link it is another
One end connects the first horn mouth terminal and N-terminal, and the thermal fuse-link constitutes series circuit, thermal fuse-link and PTC with PTC chip
Chip is mounted in above-mentioned cavity.
Temperature is substantially invariable when the PTC chip normal work, and the condition of PTC chip fracture is more than nominal resistance to electricity
When the operating mode of pressure, PTC chip meeting abnormal heating, the operating temperature of thermal fuse-link generates Curie point compared with PTC chip and is higher than 30
DEG C, ensure PTC starters in normal work, thermal fuse-link is not in accidentally to protect.Work as circuit abnormality, PTC chip temperature meeting
It steeply rises, abnormal calorific value is by heat transfer to thermal fuse-link.At this time in cavity with the concatenated thermal fuse-link energy of PTC chip
Rapid temperature-sensitive action occurs the preceding cut-out circuit in time of fracture in PTC chip, PTC chip is avoided to be broken.
The spring terminal for being placed in two lateral electrode of PTC chip and the second horn mouth terminal are staggeredly mutually set and have all welded one
A shrapnel, PTC chip apply pressure fixing by shrapnel from both sides.
Described device is simple in structure, at low cost；When there is unusual service condition, PTC chip is drastically generated heat, and heat leads to heat transfer
To thermal fuse-link, thermal fuse-link can cut off circuit in time, and thermal fuse-link once motion will not reply, and effectively reduce PTC cores
The probability of piece fracture, avoids hidden danger on fire.
Description of the drawings
Fig. 1 is the starter structural schematic diagram with defencive function.
Fig. 2 is the starter explosive view with defencive function.
Fig. 3 is structure chart in the starter housing with defencive function.
Fig. 4 is the starter box cover structure chart with defencive function.
Fig. 5 is that the starter thermal fuse-link with defencive function is mounted on PTC chip bottom schematic view.
Fig. 6 is that the starter thermal fuse-link with defencive function is mounted on PTC chip bottom sectional view.
Fig. 7 is that the starter thermal fuse-link with defencive function is mounted on PTC chip schematical top view.
Fig. 8 is that the starter thermal fuse-link level with defencive function is adjacent to the vertical view mounted on PTC chip side.
Fig. 9 is the vertical view that the starter thermal fuse-link with defencive function is adjacent to vertically on the left of PTC chip.
Figure 10 is the vertical view that the starter thermal fuse-link with defencive function is adjacent to vertically on the right side of PTC chip.
Figure 11 is the starter circuit figure one with defencive function.
Figure 12 is the starter circuit figure two with defencive function.
Specific implementation mode
Embodiment one
As shown in Fig. 1,2,3,4,11, a kind of starter with defencive function of the present invention, by box cover（8）And shell（7）
Composition, placed PTC chip in the shell（1）, thermal fuse-link（4）With multiple external terminals, the external terminal one
In shell, the other end protrudes outside shell, is used as external connection at end.Wherein three terminals are respectively D terminals（9）, N-terminal（10）
With L terminals（11）.It is equipped with limit card slot in shell, is used for compartment of terrain and places PTC chip（1）, thermal fuse-link（4）With it is multiple external
Terminal.
The starter with defencive function, wherein the first horn mouth terminal（2）With thermal fuse-link（4）One end be electrically connected
It connects, thermal fuse-link（4）The other end and spring terminal（3）Electrical connection, spring terminal（3）With PTC chip（1）Side is electrically connected, PTC
Chip（1）The other side and the second horn mouth terminal（5）Electrical connection forms series circuit.First horn mouth terminal in shell（2）With
Thermal fuse-link（4）One end of connection also with N-terminal（10）Electrical connection.The thermal fuse-link（4）Close to being installed on PTC chip（1）
Side, the distance between thermal fuse-link and PTC chip be less than 5mm, and the fever of PTC chip exception can pass to hot melt by heat
Disconnected body.
There are temperature differences with thermal fuse-link operating temperature for temperature when PTC chip works normally, heat disconnected operating temperature
Curie point is generated compared with PTC chip and is higher than 30 DEG C, ensures PTC chip starter in normal work, thermal fuse-link will not go out
Now accidentally protect.
The compressor PTC chip starter, two ceramic inserts are set to PTC chip both sides.Ceramic insert is for limiting
Position clamping PTC chip, ceramic insert have high high temperature resistant and high-voltage resistance capability.
Second horn mouth terminal of the PTC chip both sides has all welded shrapnel with spring terminal and has staggeredly mutually set, described
PTC chip applies pressure fixing by shrapnel and inserts from both sides.When PTC chip failure fracture immediately occurred when, shrapnel with
Ceramic insert is that fulcrum exerts a force from the other side, and shrapnel can flick dehiscence part, play the role of breaking.The shrapnel is not
Can flick the PTC chip fragment of fragmentation, in the case of local short circuit, persistent fever, thermal fuse-link also can timely action protection, prevent
Only hidden danger on fire.
Embodiment two
As shown in Figure 5 and Figure 6, thermal fuse-link is close to mounted on the bottom of PTC chip, between thermal fuse-link and PTC chip away from
From less than 1mm.Wherein the first horn mouth terminal（2）With thermal fuse-link（4）One end electrical connection, thermal fuse-link（4）The other end with
Spring terminal（3）One end is electrically connected.Spring terminal（3）The other end and PTC chip（1）Side is electrically connected, PTC chip（1）It is another
Side and the second horn mouth terminal（5）Electrical connection constitutes series circuit.Its structural wiring is clear, disconnected with the concatenated hot melt of PTC chip
The rapid temperature-sensitive action of physical efficiency, cuts off circuit in time.
Embodiment three
As shown in fig. 7, thermal fuse-link is close to mounted on the top of PTC chip, the distance between thermal fuse-link and PTC chip are less than
1mm.Wherein the first horn mouth terminal（2）With thermal fuse-link（4）One end electrical connection, thermal fuse-link（4）The other end and spring terminal
Son（3）One end is electrically connected, spring terminal（3）The other end and PTC chip（1）Side is electrically connected, PTC chip（1）The other side and the
Two horn mouth terminals（5）Electrical connection constitutes series circuit.Its structural wiring is clear, can be fast with the concatenated thermal fuse-link of PTC chip
Fast temperature-sensitive action, cuts off circuit in time.
Example IV
As shown in figs. 8 and 12, the starter with defencive function, thermal fuse-link level are adjacent to that be placed in PTC chip side straight
Contact surface is connect, using thermal fuse-link surface metal as fixed electrode, series connection accesses in entire circuit.Thermal fuse-link it is another
The second horn mouth terminal of end connection, the PTC chip other side connects the first horn mouth terminal and N-terminal, the first horn mouth terminal and N
Terminal has all welded shrapnel and has been electrically connected with the abutting of PTC chip electrode.The thermal fuse-link surface metal is smooth tight as electrode water
PTC chip, the heat of abnormal heating effectively can pass to thermal fuse-link when PTC chip fails, and thermal fuse-link can be in time
Action cut-out circuit, plays the role of the entire circuit of protection.
Embodiment five
As shown in figure 9, the starter with defencive function, thermal fuse-link is adjacent to vertically to be placed in PTC chip side and is in direct contact
Surface enters as electrode series connection in entire circuit.Thermal fuse-link is mounted on the left of PTC chip, one end connection of thermal fuse-link
Second horn mouth terminal, thermal fuse-link surface metal are adjacent to PTC chip side as electrode vertically.The PTC chip other side connects N
Terminal, N-terminal are connect with the first horn mouth terminal simultaneously, and N-terminal has welded shrapnel and pushed against with PTC chip electrode to be connected with it
Connect electricity.Ceramic insert is mounted on and first horn mouth terminal the same side and is staggeredly mutually set with thermal fuse-link, at this time PTC chip by
3 force effects.Described device can also play certain protecting effect in structure, can be because of nothing after PTC chip failure fragmentation immediately
Method is clamped and plays the role of breaking.The thermal fuse-link surface metal is as electrode securement PTC chip, PTC chip abnormal heating
Heat effectively can pass to thermal fuse-link, thermal fuse-link can act cut-out circuit in time, play the entire circuit of protection
Effect.
Embodiment six
As shown in Figure 10, the starter with defencive function, thermal fuse-link is adjacent to vertically to be placed in PTC chip side and is in direct contact
Surface enters as electrode series connection in entire circuit.Thermal fuse-link is mounted on the right side of PTC chip, thermal fuse-link one end connection the
One horn mouth terminal and N-terminal, thermal fuse-link surface metal are adjacent to PTC chip side as electrode vertically.The PTC chip other side
The second horn mouth terminal is connected, the second horn mouth terminal has welded shrapnel and has been connected electrically with the abutting of PTC chip electrode.Pottery
Porcelain mold insert is mounted on and the second horn mouth terminal side and is staggeredly mutually set with thermal fuse-link, and PTC chip is by 3 force effects at this time,
Described device can also play certain protecting effect in structure, from meeting is due to can not be clamped after PTC chip failure fragmentation immediately
It is acted on to open circuit.For the thermal fuse-link surface metal as electrode securement PTC chip, the heat of PTC chip abnormal heating can be with
Effectively to pass to thermal fuse-link, thermal fuse-link can act cut-out circuit in time, play the role of the entire circuit of protection.
Claims (7)
1. a kind of starter with defencive function, including box cover（8）And shell（7）, box cover（8）With shell（7）It is involutory next
Internal cavity is formed, cavity is built-in with a PTC chip（1）With multiple external terminals, which is characterized in that shell（7）Inner spring end
Son（3）With the second horn mouth terminal（5）It is respectively placed in PTC chip（1）Both sides are simultaneously connected electrically, spring terminal（3）It is another
End connection thermal fuse-link（4）One end, thermal fuse-link（4）The other end connect the first horn mouth terminal（2）With N-terminal（10）, institute
State thermal fuse-link（4）With PTC chip（1）Constitute series circuit, thermal fuse-link（4）With PTC chip（1）Mounted on above-mentioned cavity
It is interior.
2. according to claim 1, which is characterized in that spring terminal（3）With the second horn mouth terminal（5）Connect PTC chip
（1）One end all welded a shrapnel（12）, shrapnel（12）With PTC chip（1）Electrode offsets and connects energization.
3. according to claim 1, which is characterized in that thermal fuse-link（4）It is placed in PTC chip（1）Bottom either top or
Side, thermal fuse-link（4）With PTC chip（1）The distance between be less than 5mm.
4. according to claim 1, which is characterized in that thermal fuse-link（4）It is placed in PTC chip（1）Bottom either top or
Side, thermal fuse-link（4）With PTC chip（1）The distance between be less than 1mm.
5. according to claim 1, which is characterized in that thermal fuse-link（4）With PTC chip（1）Side be adjacent to, utilize hot melt
Disconnected body surface metal is connected to PTC chip as fixed electrode（1）, connect and access in entire circuit.
6. according to claim 1, which is characterized in that there are one above insulation inserts（6）Mounted on PTC chip（1）
Side is opposite with other side shrapnel.
7. according to claim 6, which is characterized in that the insulation inserts（6）For ceramic insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756188.0A CN108667350A (en) | 2018-07-11 | 2018-07-11 | A kind of starter with defencive function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810756188.0A CN108667350A (en) | 2018-07-11 | 2018-07-11 | A kind of starter with defencive function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108667350A true CN108667350A (en) | 2018-10-16 |
Family
ID=63773998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810756188.0A Pending CN108667350A (en) | 2018-07-11 | 2018-07-11 | A kind of starter with defencive function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108667350A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546893A (en) * | 2019-01-28 | 2019-03-29 | 广州森宝电器股份有限公司 | A kind of PTC starter |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001057763A (en) * | 1999-08-12 | 2001-02-27 | Tdk Corp | Motor controller |
| JP2001216883A (en) * | 2000-01-31 | 2001-08-10 | Sony Corp | Protective element and battery pack |
| US20040135663A1 (en) * | 2003-01-13 | 2004-07-15 | Byong-Jun Jang | PTC thermistor having safety structure for preventing continuous breakage |
| JP2005073330A (en) * | 2003-08-21 | 2005-03-17 | Yamada Electric Mfg Co Ltd | Starter of single-phase induction motor, enclosed motor compressor employing starter and apparatus employing it |
| JP2006300363A (en) * | 2005-04-18 | 2006-11-02 | Matsushita Electric Ind Co Ltd | Bathroom ventilating dryer |
| CN201854227U (en) * | 2010-09-19 | 2011-06-01 | 万宝冷机集团广州电器有限公司 | PTC (Positive Temperature Coefficient) starter |
| CN202602242U (en) * | 2012-05-10 | 2012-12-12 | 上海贺鸿电子有限公司 | Self-recovery over-current and over-temperature protective device |
| CN203896229U (en) * | 2014-06-24 | 2014-10-22 | 广州森宝电器股份有限公司 | Positive temperature coefficient (PTC) starter for compressor |
| CN104362906A (en) * | 2014-07-15 | 2015-02-18 | 杭州星帅尔电器股份有限公司 | Starter with temperature fuse |
| 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 |
| CN206226324U (en) * | 2016-09-18 | 2017-06-06 | 广州森宝电器股份有限公司 | A kind of compressor PTC starters |
| CN208479498U (en) * | 2018-07-11 | 2019-02-05 | 广州森宝电器股份有限公司 | A kind of starter with defencive function |
-
2018
- 2018-07-11 CN CN201810756188.0A patent/CN108667350A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001057763A (en) * | 1999-08-12 | 2001-02-27 | Tdk Corp | Motor controller |
| JP2001216883A (en) * | 2000-01-31 | 2001-08-10 | Sony Corp | Protective element and battery pack |
| US20040135663A1 (en) * | 2003-01-13 | 2004-07-15 | Byong-Jun Jang | PTC thermistor having safety structure for preventing continuous breakage |
| JP2005073330A (en) * | 2003-08-21 | 2005-03-17 | Yamada Electric Mfg Co Ltd | Starter of single-phase induction motor, enclosed motor compressor employing starter and apparatus employing it |
| JP2006300363A (en) * | 2005-04-18 | 2006-11-02 | Matsushita Electric Ind Co Ltd | Bathroom ventilating dryer |
| CN201854227U (en) * | 2010-09-19 | 2011-06-01 | 万宝冷机集团广州电器有限公司 | PTC (Positive Temperature Coefficient) starter |
| CN202602242U (en) * | 2012-05-10 | 2012-12-12 | 上海贺鸿电子有限公司 | Self-recovery over-current and over-temperature protective device |
| CN203896229U (en) * | 2014-06-24 | 2014-10-22 | 广州森宝电器股份有限公司 | Positive temperature coefficient (PTC) starter for compressor |
| CN104362906A (en) * | 2014-07-15 | 2015-02-18 | 杭州星帅尔电器股份有限公司 | Starter with temperature fuse |
| CN206226324U (en) * | 2016-09-18 | 2017-06-06 | 广州森宝电器股份有限公司 | A kind of compressor 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 |
| CN208479498U (en) * | 2018-07-11 | 2019-02-05 | 广州森宝电器股份有限公司 | A kind of starter with defencive function |
Non-Patent Citations (1)
| Title |
|---|
| 李佩禹: "《家用电器的微电脑控制》", 31 March 1998, 北京：人民邮电出版社, pages: 42 - 44 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546893A (en) * | 2019-01-28 | 2019-03-29 | 广州森宝电器股份有限公司 | A kind of PTC starter |
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