CN102623242A - Motor protector - Google Patents
Motor protector Download PDFInfo
- Publication number
- CN102623242A CN102623242A CN2012101194081A CN201210119408A CN102623242A CN 102623242 A CN102623242 A CN 102623242A CN 2012101194081 A CN2012101194081 A CN 2012101194081A CN 201210119408 A CN201210119408 A CN 201210119408A CN 102623242 A CN102623242 A CN 102623242A
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- CN
- China
- Prior art keywords
- connecting pin
- pedestal
- sensitive element
- temperature
- cover plate
- 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.)
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Abstract
The invention discloses a motor protector, which comprises a base, a first connecting pin, a thermosensitive element, a cover plate, a second connecting pin, a heating wire and a third connecting pin, wherein the first connecting pin, the second connecting pin and the third connecting pin are respectively arranged in a plug pin hole in the base, the heating wire is arranged in a shell of the base, one end of the heating wire and the second connecting pin are welded, the other end of the heating wire and the third connecting pin are welded, the thermosensitive element is arranged in the base, a moving contact of the thermosensitive element is in contact with a fixed contact of the second connecting pin, and a bonding pad is used for welding the thermosensitive element and the first connecting pin. According to the invention, the movable contact is arranged on the thermosensitive element, the fixed contact is arranged on the second connecting pin, and the motor protector has the advantages of simple structure, good work stability because only one pair of contacts is arranged, adjustment freeness, high assembly efficiency and low production cost.
Description
Technical field
The present invention relates to the Protector for electric appliance technical field, especially a kind of motor protecter.
Background technology
In the motor protecter field; Especially freezer compressor, compressor of air conditioner, the employed external motor protecter of dehumidifier compressor, its basic structure comprise pair of terminal, two moving contacts, two fixed contacts, a bimetal leaf, a cover plate, a pedestal, a nut and an adjustment screw.The problem that exists is, existing product is because its structure is too complicated, and the contact is many, and amount of parts is many, causes that product probability of malfunction in use is high, adjustment is loaded down with trivial details, efficiency of assembling is low, and the production cost height.
Summary of the invention
A kind of motor protecter that the objective of the invention is to be directed against the deficiency of prior art and provide, the present invention is provided with moving contact on temperature-sensitive element, fixed contact is set on second connecting pin; Have simple in structure; Pair of contact is only arranged, and good operating stability need not adjustment; Efficiency of assembling is high, and the low advantage of production cost.
The concrete technical scheme that realizes the object of the invention is:
A kind of motor protecter; Its characteristics comprise pedestal, first connecting pin, temperature-sensitive element, cover plate, second connecting pin, heater strip and the 3rd connecting pin; Said pedestal is a cylindrical shell, and its housing internal diameter is provided with the cover plate seam, and the housing upper surface is provided with several pin holes; Temperature-sensitive element is provided with moving contact and bonding pad, and second connecting pin is provided with fixed contact; Said first connecting pin, second connecting pin and the 3rd connecting pin are located at respectively in the pin holes of pedestal; Temperature-sensitive element is located in the pedestal, and the fixed contact of the moving contact and second connecting pin touches, and bonding pad is with temperature-sensitive element and the welding of first connecting pin; Heater strip is located in the housing of pedestal; One of which end and the welding of second connecting pin, the other end and the welding of the 3rd connecting pin, the cover plate spiral-lock is on the cover plate seam of pedestal; The edge of described pedestal is provided with first witness marker; Described bonding pad is provided with second witness marker.
The present invention is provided with moving contact on temperature-sensitive element, on second connecting pin, fixed contact is set, and has simple in structurely, and pair of contact is only arranged, and good operating stability need not adjustment, and efficiency of assembling is high, and the low advantage of production cost.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the vertical view of Fig. 1 of the present invention;
Fig. 3 is A-A schematic cross-section of Fig. 1 of the present invention;
Fig. 4 is the B--B schematic cross-section of Fig. 1 of the present invention;
Fig. 5 is a schematic appearance of the present invention.
Embodiment
Consult Fig. 1, Fig. 3, Fig. 4; The present invention includes pedestal 1, first connecting pin 2, temperature-sensitive element 3, cover plate 5, second connecting pin 8, heater strip 9 and the 3rd connecting pin 10; Said pedestal 1 is a cylindrical shell, and its housing internal diameter is provided with cover plate seam 11, and the housing upper surface is provided with several pin holes 13; Temperature-sensitive element 3 is provided with moving contact 6 and bonding pad 4, the second connecting pins 8 are provided with fixed contact 7; Said first connecting pin 1, second connecting pin 8 and the 3rd connecting pin 10 are located at respectively in the pin holes 13 of pedestal 1; Temperature-sensitive element 3 is located in the pedestal 1, and the fixed contact 7 of the moving contact 6 and second connecting pin 8 touches, and bonding pad 4 is with temperature- sensitive element 3 and 2 welding of first connecting pin; Heater strip 9 is located in the housing of pedestal 1; One of which end and 8 welding of second connecting pin, the other end and 10 welding of the 3rd connecting pin, cover plate 5 spiral-locks are on the cover plate seam 11 of pedestal 1; The edge of described pedestal 1 is provided with first witness marker 14; Described bonding pad 4 is provided with second witness marker 41.
The present invention is work like this:
The Electric Machine Control lead is connected on first connecting pin 2; Power lead is connected on the 3rd connecting pin 10; Under the normal operating conditions, electric current is transmitted to second connecting pin 8 through the 3rd connecting pin 10 through heater strip 9, is transmitted to the moving contact 6 of temperature-sensitive element 3 again by the fixed contact 7 of second connecting pin 8; Bonding pad 4 through temperature-sensitive element 3 is transmitted to first connecting pin 2, Electric Machine Control electric current normally; When the system failure, cause the Electric Machine Control electric current to increase, in the conductive process of electric current, cause temperature-sensitive element 3 heating distortion, because the distortion of temperature-sensitive element 3; Make that the fixed contact 7 of moving contact 6 and second connecting pin 8 breaks away from the temperature-sensitive element 3; At this moment, the conducting path of electric current is disconnected, and causes the Electric Machine Control electric current to break off; Motor quits work, to motor and even system implementation protection.
The present invention is provided with fixed contact 7 on second connecting pin 8, moving contact 6 is set on temperature-sensitive element 3, and touching or breaking off of the moving contact 6 through temperature-sensitive element 3 and the fixed contact 7 of second connecting pin 8 realizes the protection to motor; The present invention changes original multiconductor protector into the single contact protector, has not only simplified the structure of protector, has also improved the job stability of protector.
Consult Fig. 2, Fig. 5, the present invention is provided with first witness marker 14 on the edge of pedestal 1, is convenient to accurately locate when the present invention installs on equipment.
Consult Fig. 4, the present invention is provided with second witness marker 41 on bonding pad 4, is convenient to the direction of automatic welding device identification bonding pad 4, is beneficial to automated production.
Claims (3)
1. motor protecter; It is characterized in that it comprises pedestal (1), first connecting pin (2), temperature-sensitive element (3), cover plate (5), second connecting pin (8), heater strip (9) and the 3rd connecting pin (10); Said pedestal (1) is a cylindrical shell; Its housing internal diameter is provided with cover plate seam (11); The housing upper surface is provided with several pin holes (13), and temperature-sensitive element (3) is provided with moving contact (6) and bonding pad (4), and second connecting pin (8) is provided with fixed contact (7); Said first connecting pin (1), second connecting pin (8) and the 3rd connecting pin (10) are located at respectively in the pin holes (13) of pedestal (1); Temperature-sensitive element (3) is located in the pedestal (1); And moving contact (6) touches with the fixed contact (7) of second connecting pin (8); Bonding pad (4) is with temperature-sensitive element (3) and first connecting pin (2) welding, and heater strip (9) is located in the housing of pedestal (1), one of which end and second connecting pin (8) welding; The other end and the 3rd connecting pin (10) welding, cover plate (5) spiral-lock is on the cover plate seam (11) of pedestal (1).
2. motor protecter according to claim 1 is characterized in that the edge of pedestal (1) is provided with first witness marker (14).
3. motor protecter according to claim 1 is characterized in that bonding pad (4) is provided with second witness marker (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101194081A CN102623242A (en) | 2012-04-23 | 2012-04-23 | Motor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101194081A CN102623242A (en) | 2012-04-23 | 2012-04-23 | Motor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102623242A true CN102623242A (en) | 2012-08-01 |
Family
ID=46563095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101194081A Pending CN102623242A (en) | 2012-04-23 | 2012-04-23 | Motor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102623242A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59151721A (en) * | 1983-02-18 | 1984-08-30 | 株式会社村田製作所 | Heat responsive element |
| JP2006230158A (en) * | 2005-02-21 | 2006-08-31 | Matsushita Electric Ind Co Ltd | Motor starting relay |
| CN101950706A (en) * | 2010-09-14 | 2011-01-19 | 苏州华旃航天电器有限公司 | Built-in protector of compressor |
| US20110102126A1 (en) * | 2009-10-30 | 2011-05-05 | Hanbecthistem Co., Ltd. | Thermostat |
| CN102157301A (en) * | 2011-03-10 | 2011-08-17 | 上海航天科工电器研究院有限公司 | External protector for compressor |
-
2012
- 2012-04-23 CN CN2012101194081A patent/CN102623242A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59151721A (en) * | 1983-02-18 | 1984-08-30 | 株式会社村田製作所 | Heat responsive element |
| JP2006230158A (en) * | 2005-02-21 | 2006-08-31 | Matsushita Electric Ind Co Ltd | Motor starting relay |
| US20110102126A1 (en) * | 2009-10-30 | 2011-05-05 | Hanbecthistem Co., Ltd. | Thermostat |
| CN101950706A (en) * | 2010-09-14 | 2011-01-19 | 苏州华旃航天电器有限公司 | Built-in protector of compressor |
| CN102157301A (en) * | 2011-03-10 | 2011-08-17 | 上海航天科工电器研究院有限公司 | External protector for compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120801 |