CN202524066U - Motor default phase protection device - Google Patents
Motor default phase protection device Download PDFInfo
- Publication number
- CN202524066U CN202524066U CN2012202027503U CN201220202750U CN202524066U CN 202524066 U CN202524066 U CN 202524066U CN 2012202027503 U CN2012202027503 U CN 2012202027503U CN 201220202750 U CN201220202750 U CN 201220202750U CN 202524066 U CN202524066 U CN 202524066U
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- CN
- China
- Prior art keywords
- motor
- fixed
- shell
- resets
- protector
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a motor default phase protection device. The motor default phase protection device comprises a motor, and is characterized in that a fixing plate (22) is fastened on the motor through a set screw (21), the fixing plate (22) is closely matched with a protector base seat (19) through a set screw (18) and a set screw nut (23), the protector base seat (19) is closely matched with an upper cover (07) of an upper portion protector through a tapping screw (20), the upper cover (07) is provided with a reset fixing frame (05), an outer shell (03) and a waterproof ring (26) are fixed on the motor through a set screw (24) and a gasket (25), the outer shell (03) is provided with a screwed pipe (02) and a reset waterproof cap (01), and the place of the outer shell (03)where the power supply is input is provided with a rubber sleeve (04). The motor default phase protection device has the advantages that technological improvement and innovation based on an unchanged installation size are conducted on a connection place of an original motor outer shell, and a current overload protection device which is concise and compact in structure, and beneficial for operation and judgment is provided.
Description
Technical field
The utility model relates to a kind of motor phase shortage overload protection arrangement.
Background technology
Present employed two-phase, three phase electric machine, seldom there is the defencive function of overcurrent protection and phase place phase shortage at shell joint line place outside; Other has a kind of is two-phase, three-phase current overcurrent protection switch, and it is on external switch panel, to be equipped with out and to close two knobs and a power supply indicator, switch bottom three the manual overload protective devices of packing into: its shortcoming 1, volume is big, wiring is complicated; 2, after current overload in the circuit breaks off to protective device; Knob is arranged on switch inside because protector resets; After the circuit maintenance is good, makes it recover operate as normal like need from new connection protector and then need whole switch be taken apart, also can let the user misunderstand sometimes and think that this overload protection threephase switch has been damaged; Need to change defectives such as switch parts, bring very big inconvenience to the user.
The utility model content
It is simple and clear, compact that the utility model technical problem to be solved has provided a kind of structure; Help a kind of current overload protection protection unit of operating and judging; Major function has: two-phase, three-phase current overload protection arrangement not only can be when current overload surpasses rated current automatic shutdown circuit but also can also realize open-phase protection and the manual power reset function; Having improved motor fail safe and practicality in use effectively, is the phase shortage overload protective device of a kind of uniqueness, novelty.
The technical scheme that the utility model solves the problems of the technologies described above is following: a kind of motor phase shortage overload protection arrangement, comprise motor, and fixed head 22 is fastened on the motor through fixed screw 21; Fixed head 22 through fixed screw 18 through hold-down nut 23 and protector base 19 close-fitting mutually; Base 19 can be through self-tapping screw 20 and top protector loam cake 07 close-fitting, and loam cake 07 is provided with the fixed mount 05 that resets; Shell 03 is fixed on the said motor through fixed screw 24 and packing ring 25 with water proof ring 26; Spiral shell mosquito pipe 02 is arranged on the shell 03 and reset tarpaulin 01, be provided with rubber sleeve 04 in input place of shell power supply.
The beneficial effect of the utility model: at the utility model phase shortage overcurrent protection switch: the circuit phase shortage and the overcurrent protection that are primarily aimed at two-phase, three-phase alternating current and direct current machine design; It is applicable at 220V to 380V, 50Hz/60Hz; Protect motor in the occasion below the power 7.5KW; The wiring unit that can replace original Machine Tool Electric Appliance greatly; Can be used for the startup protection of all kinds of machine motors and electrical equipment, be widely used in using in all kinds of machine motors and electric tool and the pressing equipment.The utility model has utilized the principle of thermo bimetal's characteristic; Be in wiring place of original motor housing; With carried out technological improvement and innovation on the installation dimension basis of invariable; Provide a kind of structure simple and clear, compact, helped a kind of current overload protection protection unit of operating and judging, major function has: two-phase, three-phase current overload protection arrangement not only can be when current overload surpasses rated current automatic shutdown circuit but also can also realize the hand-reset function; Having improved motor fail safe and practicality in use effectively, is the phase shortage overload protective device of a kind of uniqueness, novelty.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, said base is provided with convenient for wiring terminal screw 10 and binding post 11;
Said shell 03 is provided with the spiral shell mosquito pipe 02 on the shell and the tarpaulin 01 that resets;
Said base is provided with static terminal 17, and said static terminal 17 tight plugs are on 15 li on fire extinguishing frame, and riveting has fixed contact 16 on the static terminal 17;
Moved end 12 is set on the said base, and son 12 inner riveted joints have bimetal leaf 13 in the moved end; Said bimetal leaf 13 contacts with fixed contact 16 respectively and contacts with the moving contact that separates 14;
Be provided with protector reset slide block 09 and back-moving spring 08 between static terminal 17, fixed contact 16 and bimetal leaf 13, the moving contact 14, with protector SR 06 coupling; The fixed mount 05 that resets is stretched out in SR (06) outer end, the spiral shell mosquito pipe 02 on the corresponding shell and the tarpaulin 01 that resets.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model structural plan figure;
Fig. 3 is the utility model configuration state figure;
Fig. 4 is the utility model structure off-state figure;
Label is represented respectively in the accompanying drawing:
1. tarpaulin, 2. screwed pipe, 3. shell, 4. rubber sleeve, the fixed mount that 5. resets, 6. SR, 7. loam cake; 8. back-moving spring, the slide block that 9. resets, 10. terminal screw, 11. binding posts, 12. moved ends, 13. bimetal leafs, 14. moving contacts; 15, arc extinguishing frame, 16. fixed contacts, 17. static terminals, 18. fixed screws, 19. bases, 20. self-tapping screws; 21. fixed screw, 22. fixed heads, 23. hold-down nuts, 24. fixed screws, 25. packing rings, 26. water proof rings.
Embodiment
Below in conjunction with accompanying drawing the principle and the characteristic of the utility model are described, institute gives an actual example and only is used to explain the utility model, is not the scope that is used to limit the utility model.
Shown in Fig. 1 to 3; Moved end son 12 (3) that are equipped with on the protector base 19 go up the bimetal leaf 13 (3) of salient point riveted and fixed; Bimetal leaf 13 (3) is provided with moving contact 14 (3); On base, also be provided with fire extinguishing frame 15 (3) and fill in static terminal 17 (3) respectively, be respectively arranged with fixed contact 16 (3) on the static terminal 17 (3), connect cooperation; Reset 3 salient points on the slide block 09 respectively between bimetal leaf (3) between 13, and the slide block 09 that resets cooperates with SR 06 with back-moving spring 08.The slide block 09 that resets receives the effect of back-moving spring 08 elastic force to make the slide block 09 that resets be positioned bimetal leaf (3) can not move voluntarily between 13.When surpassing rated current through any circuital current in three circuit of thrermostatic bimetal-plate 13 (3) in the circuit; The corresponding meeting of thrermostatic bimetal-plate 13 (3) short time set that is heated; Fixed contact 16 (3) was separated with moving contact 14 (3) corresponding moment; When separating,, the variable in distance between two contacts strikes sparks because of can being directed at air breakdown; At this moment because the salient point of fire extinguishing frame is the periphery that is trapped among two contacts, then blocked scattering of fire and extinguished automatically, protected destruction to bimetal leaf and terminal.The back is broken off because of bimetallic action property in two contacts, thereby makes its released state that is keeping static terminal fixed contact and bimetal leaf moving contact play the purpose of protection motor safety.
After fixing a breakdown, manually push the tarpaulin 01 on the shell 03; It is soft because of tarpaulin 01; The also action downwards of SR 06 that meeting is pressed and makes tarpaulin 01 the inside with power; The slide block 09 that resets at the same time receives the active force of SR 06 that 3 salient points on its slide block that resets are moved to bimetal leaf 13 (3) respectively; Make its extruding bimetal leaf 13 (3) reach sudden change and reset, make static terminal 17 (3) fixed contact 16 (3) and the corresponding moment conducting of bimetal leaf 13 (3) moving contact 14 (3).Thereby accomplished the protection action of a circulation, reached the protection effect of repetition.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (2)
1. a motor phase shortage overload protection arrangement comprises motor, it is characterized in that, fixed head (22) is fastened on the motor through fixed screw (21); Fixed head (22) through fixed screw (18) through hold-down nut (23) and protector base (19) close-fitting mutually; Base (19) can pass through self-tapping screw (20) and top protector loam cake (07) close-fitting, and loam cake (07) is provided with the fixed mount that resets (05); Shell (03) and water proof ring (26) are fixed on the said motor through fixed screw (24) and packing ring (25); Spiral shell mosquito pipe (02) and the tarpaulin that resets (01) are arranged on the shell (03), be provided with rubber sleeve (04) in input place of shell power supply.
2. motor phase shortage overload protection arrangement as claimed in claim 1 is characterized in that, said base is provided with convenient for wiring terminal screw (10) and binding post (11);
Said shell (03) is provided with spiral shell mosquito pipe (02) and the tarpaulin that resets (01) on the shell;
Said base is provided with static terminal (17), and the tight plug of said static terminal (17) is in fire extinguishing frame (15) lining, and static terminal (17) is gone up riveting has fixed contact (16);
Moved end (12) is set on the said base, bimetal leaf (13) is arranged in the inner riveted joint of moved end (12); Said bimetal leaf (13) contacts with fixed contact (16) respectively and contacts with the moving contact that separates (14);
Be provided with protector reset slide block (09) and back-moving spring (08) between static terminal (17), fixed contact (16) and bimetal leaf (13), the moving contact (14), mate with protector SR (06); The fixed mount that resets (05) is stretched out in SR (06) outer end, spiral shell mosquito pipe (02) and the tarpaulin that resets (01) on the corresponding shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202027503U CN202524066U (en) | 2012-05-07 | 2012-05-07 | Motor default phase protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202027503U CN202524066U (en) | 2012-05-07 | 2012-05-07 | Motor default phase protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202524066U true CN202524066U (en) | 2012-11-07 |
Family
ID=47106995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202027503U Expired - Fee Related CN202524066U (en) | 2012-05-07 | 2012-05-07 | Motor default phase protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202524066U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836207A (en) * | 2015-05-15 | 2015-08-12 | 宁波市士鑫电器有限公司 | Phase loss protection switch of three-phase motor |
-
2012
- 2012-05-07 CN CN2012202027503U patent/CN202524066U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836207A (en) * | 2015-05-15 | 2015-08-12 | 宁波市士鑫电器有限公司 | Phase loss protection switch of three-phase motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20130507 |