CN201256375Y

CN201256375Y - Energy-saving type integrated single phase AC motor starter and protector

Info

Publication number: CN201256375Y
Application number: CNU2008201604418U
Authority: CN
Inventors: 赵云文
Original assignee: TIANYIN ELECTROMECHANICAL CO Ltd CHANGSHU
Current assignee: TIANYIN ELECTROMECHANICAL CO Ltd CHANGSHU
Priority date: 2008-09-19
Filing date: 2008-09-19
Publication date: 2009-06-10
Anticipated expiration: 2018-09-19

Abstract

The utility model relates to an energy-saving type integral single-phase alternating current motor starting and protecting device belonging to the technical field of a motor protecting device of a refrigerant compressor protector, which comprises a shell body, a shell cover, a motor protector arranged in the shell body, a motor starter arranged on the shell body and a plugging sheet mechanism comprising an L plugging sheet, a N plugging sheet and an earthing plugging sheet, the motor starter comprises a first and a second base pins, and a positive temperature coefficient thermal resistor. The device is characterized in that supporting walls are respectively arranged on both ends of the cavity of the positive temperature coefficient thermal resistor in an extending mode, a pair of the supporting walls are parallel with each other, a projection is respectively formed almost on the center position of the upper portion of each supporting walls, both sides of the bottom of the positive temperature coefficient thermal resistor are contacted with the projections, and both sides of the positive temperature coefficient thermal resistor are respectively clamped by the first and the second base pins. The device has the advantages of good energy-saving effect, and obviously reduces the volume and is beneficial to save materials for manufacturing the positive temperature coefficient thermal resistor.

Description

Energy-saving type integral single phase AC electric motor starting, protector

Technical field

The utility model belongs to refrigeration compressor motor protective device technical field, is specifically related to a kind of energy-saving type integral single phase AC electric motor starting, protector.

Background technology

Integral single phase AC electric motor starting, protector are the compressor electric motor starting guard equipments that motor starter and motor protecter are gathered together.

Before, the applicant has proposed four patent applications about motor starter to Patent Office of China national Department of Intellectual Property, and their patent No. is respectively: ZL200320120087.3, ZL200320120088.8, ZL20032010089.3, ZL20032010090.5.Thereafter, also applied for two patents about integral type electric motor starting, protector, their patent No. is respectively: ZL03219606.7 and ZL03219607.5.And multinomial invention and the utility model patent such as overload protective device, the starting of non-power consumption machine, protector of also having applied for load motor.

As mentioned above; electric motor starting; protector is the compressor electric motor starting guard equipment that motor starter and protector are combined; for the structure of this device as long as just can be well understood to by reading the above-mentioned patent documentation that exemplifies; generally, comprise following structural member and function element: housing; the cap that matches with housing; be located in the shell chamber of housing and master load motor; the loop-coupled starter of secondary coiling; be plugged on the L inserted sheet that being used on the cap is connected with power supply; similarly be inserted into the N inserted sheet that is connected with electric capacity with power supply on the cap; remain and insert in the protector seat be embedded in the grounding insert-pin on the cap and be located at housing and thermostat and the inlet wire of load motor and the protector that starter is electrically connected refrigerant compressor.

The main shortcoming of the integral single phase AC electric motor starting of said structure, protector is not have desirable energy-saving effect; because constituting the mounting means of the positive temperature coefficient thermistor (being called for short PTC) of starter all is inserted on the housing in the default PTC chamber with slotting embedding mode; all touch with the chamber wall subsides in PTC chamber the both sides of the bottom of PTC and inclined to one side bottom, and contact area is bigger.Known to the industry, arrive 140 ℃ of Curie point critical temperatures after the PTC starting is finished, increase because of the contact-making surface conference causes heat dissipation capacity, thereby the power consumption of PTC is increased, because contact-making surface is big, the heat of PTC is more particularly transmitted by the shell chamber and causes thermal losses by housing.Consider for above-mentioned factor that just the volume of PTC will be remained on bigger degree usually, the weight of employed material is about 35-40g, power consumption is 2.5-3w.Yet, the applicant thinks, above-mentioned disposal options causes the material that is used to process PTC to increase and waste of energy significantly, and is incompatible with the economizing economy that present people advocate, and therefore how to avoid the thermal losses of PTC and uses the problem energy-conservation, that material-saving has become industry to pay close attention to gradually that embodies.

In addition, the installation of the above-mentioned L inserted sheet of mentioning, N inserted sheet and grounding insert-pin is cumbersome, be embodied in: before the cap lid is put housing, must earlier L, N and grounding insert-pin be assembled, promptly plant in the corresponding connecting piece perforation on the default cap, and then take L, N and grounding insert-pin lid by cap and be fitted on the housing, so efficiency of assembling is low and the poor stability of each inserted sheet, there are beat, loosening phenomenon.Here the efficiency of assembling of being said is low mainly is because installing in advance of each inserted sheet causes obstruction for the installation of cap.To this, the applicant thinks also improved necessity.

Summary of the invention

Top priority of the present utility model is to provide a kind of contacted contact area of cavity that can reduce effectively as default thermistor chamber on the positive temperature coefficient thermistor of starter and the housing to prevent thermal loss and uses to embody and dwindle volume, the economical with materials of positive temperature coefficient thermistor and the energy-saving type integral single phase AC electric motor starting that cuts down the consumption of energy, protector.

For top priority of the present utility model is finished in embodiment; technical scheme provided by the utility model is: a kind of energy-saving type integral single phase AC electric motor starting; protector; it comprises housing; cover the cap of joining mutually with housing; be located at the motor protecter in the motor protecter chamber of described housing; be installed on the described housing motor starter and by the L inserted sheet; that N inserted sheet and grounding insert-pin constitute and be plugged on inserted sheet mechanism on the described cap; described motor starter comprises first; second pin and positive temperature coefficient thermistor; first pin is plugged in the first pin chamber of housing and pastes with a side of positive temperature coefficient thermistor and touches; second pin is plugged in the second pin chamber of housing and pastes with the opposite side of positive temperature coefficient thermistor and touches; described positive temperature coefficient thermistor is located in the positive temperature coefficient thermistor chamber of housing; be characterised in that: the two ends in described positive temperature coefficient thermistor chamber have respectively extended an abutment wall; a pair of abutment wall is keeping parallelism each other; constitute a rostellum at position placed in the middle substantially, the top of each abutment wall; the both sides of the bottom of described positive temperature coefficient thermistor contact with described rostellum, and the both sides of positive temperature coefficient thermistor are respectively by described first; second pin is seized on both sides by the arms.

In a specific embodiment of the present utility model, the shape of described rostellum is the ∧ font.

For another task of the present utility model is finished in embodiment, technical scheme provided by the utility model is: described cap has extended first in the side towards described housing, second, the 3rd, the 4th, the 5th, the 6th catch and extended first, second, the 3rd, the 4th anti-play limiting block is prominent and extended first, second, the 3rd, the 4th, the 5th support flanges, wherein, first, second catch is corresponding with the side of described L inserted sheet, the described first anti-play limiting block is prominent corresponding with an end of L inserted sheet, the described second anti-play limiting block is prominent corresponding with the other end of L inserted sheet, and described first support flanges is corresponding with the middle part of L inserted sheet; Described the 3rd catch is corresponding with the side of N inserted sheet, the described the 3rd anti-play limiting block is prominent corresponding with the nearly middle part of N inserted sheet, and the described the 4th anti-play limiting block is prominent corresponding with an end of N inserted sheet, and described the 4th catch is corresponding with the sidepiece of N inserted sheet; Described the 5th catch is corresponding with the sidepiece of an end of described grounding insert-pin, and described the 6th catch is corresponding with the sidepiece of the other end of grounding insert-pin; Described second support flanges is corresponding with the other end of described N inserted sheet, and described the 3rd support flanges is corresponding with the middle part of N inserted sheet; Described the 4th support flanges is corresponding with an end of described grounding insert-pin, and described the 5th support flanges is corresponding with the middle part of grounding insert-pin.

Go back in the specific embodiment of the present utility model, described motor protecter is an overload protective device.

In another specific embodiment of the present utility model, described motor protecter comprises shell block, lid, heating wire, bimetal leaf, first, second pin, moving, fixed contact, being contained in holder in the shell chamber of shell block and one is used for described moving, fixed contact is realized the actuating mechanism of cut-off/close each other, the bottom of holder has the pin chamber, top has heating wire chamber and bimetallic bar, first base portion of described first pin is fixed on a side in pin chamber, second base portion of described second pin is fixed on the opposite side in pin chamber, the first end of first pin passes the first pin hole on the shell block, and the second end of second pin passes the second pin hole on the shell block, described fixed contact is fixed on first base portion, described heating wire is by first in a pair of cavity that is fixed in the heating wire chamber, second connects post and is fixedly arranged in the heating wire chamber, and second connects post fixedlys connected with described second base portion, described bimetal leaf is a disc, be held on the bimetallic bar, and corresponding to the top of heating wire; Described actuating mechanism comprises push rod and spring leaf, push rod is upper and lower to be located in the jogger hole that is opened in holder central authorities versatilely, its upper end is corresponding with bimetal leaf, and the lower end of push rod is corresponding with spring leaf, the stiff end of spring leaf is fixed on the spring leaf holder of described holder bottom, the free end of spring leaf is stretched in the limit chamber of default contact, holder bottom, described moving contact is fixed on the free end, and is corresponding with fixed contact on described first base portion that is fixed in first pin.

In another specific embodiment of the present utility model, described first pin is inserted solid on described pin chamber to insert the embedding mode; Described second pin is inserted solid on described pin chamber to insert the embedding mode.

More of the present utility model and in specific embodiment, in solid welding or the rivet clasp any one of being fixedly connected as that second base portion of described second pin and second connects post fixedlyed connected; The described first fixing fixed form that connects between the stiff end of post and spring leaf is any one fixed form in welding or the riveted joint.

In of the present utility model and then specific embodiment, described moving contact is fixed on the free end of spring leaf in any one mode in welding or the riveted joint, and described fixed contact is fixed on first base portion of first pin in any one mode in welding or the riveted joint, and corresponding Face to face with moving contact.

Of the present utility model again more and in specific embodiment, described dynamic and static contact is silver contact.

In again of the present utility model and then specific embodiment, described actuating mechanism also includes one and is used to take the connector that described spring leaf is set to described holder bottom.

Technical scheme disclosed in the utility model is owing to respectively extended an abutment wall at the two ends in the positive temperature coefficient thermistor chamber of housing, and the middle position, top in abutment wall constitutes a rostellum, the bottom of positive temperature coefficient thermistor is become with the point of rostellum with contacting of positive temperature coefficient thermistor chamber to be contacted, dwindled contact area effectively, avoided the heat of positive temperature coefficient thermistor being taken away (hot transmission loss) by the chamber wall in positive temperature coefficient thermistor chamber, thereby can make the power consumption of positive temperature coefficient thermistor be decreased to 1.4-1.6w from original 2.5-3w, has good energy-saving effect, and volume is significantly dwindled, and then the weight that makes positive temperature coefficient thermistor alleviates to 15-16g from the 35-40g of original (prior art), helps to save the material that is used to process positive temperature coefficient thermistor.

Description of drawings

Fig. 1 is an example structure figure of the present utility model.

Fig. 2 is the upward view of cap shown in Figure 1.

Fig. 3 is an embodiment assembling assumption diagram of motor protecter of the present utility model shown in Figure 1.

Fig. 4 is another embodiment assembling assumption diagram of motor protecter of the present utility model shown in Figure 1.

Fig. 5 is the lower junction composition of Fig. 3 and holder shown in Figure 4.

Embodiment

For the auditor that makes Patent Office particularly the public can be well understood to technical spirit of the present utility model and beneficial effect more; the applicant will reach embodiment of the present utility model in conjunction with the accompanying drawings and be described in detail as follows; but all descriptions to embodiment all are not construed as limiting the technical solution of the utility model, and are any pro forma but not substantial equivalence is replaced and even the definition variation of vocabulary of terms all should be considered as belonging to the category of intension disclosed in the utility model and prescription protection.

Ask for an interview Fig. 1, provide concrete shape and be not subjected to illustrating housing 1 restriction and that be molded from plastic into shape, on the outer wall of housing 1, constitute pin base 15, on housing 1, dispose a cap 2, cap 2 is formed by Mold Making by plastics equally, be extended with the quantity of described pin base 15 at 2 edges of cap and equate and the corresponding location pins 27 in position, and location pins 27 is inserted in pin base 15 and makes cap 2 lids solid on housing 1 towards a side of housing 1.With present location status shown in Figure 1 is example, constitutes a motor protecter chamber 11 in a side of the left end of housing 1, and the motor protecter of illustrating among the figure 4 is contained in the motor protecter chamber 11.This motor protecter 4 is an overload protective device, is electrically connected and is electrically connected with motor starter 3 with the thermostat of refrigerant compressor.On housing 1, constitute second,

third pin chamber

12,13 and positive temperature coefficient thermistor chamber 14 integratedly with housing 1, wherein, in positive temperature coefficient thermistor chamber 14, extend a pair of parallel abutment wall 141, the top of each abutment wall 141 and occupy central part and constitute the rostellum 1411 that a shape is preferably ∧ shape, the top ends of rostellum 1411 is sharp as pin.Be plugged in the first pin chamber 12 as first pin 32 that constitutes motor starter 3, and be inserted in the second pin chamber 13, and be housed inside in the positive temperature coefficient thermistor chamber 14 as 31 of the positive temperature coefficient thermistors of the core component that constitutes motor starter 3 as second pin 33 that constitutes motor starter 3.Because the setting of the rostellum 1411 on the abutment wall 141 in the positive temperature coefficient thermistor chamber 14, therefore when being arranged to positive temperature coefficient thermistor 31 in the positive temperature coefficient thermistor chamber 14, the two bottom sides of positive temperature coefficient thermistor 31 has been shelved on the rostellum 1411 just, constitute point with rostellum 1411 and contact, that is to say by 31 supportings of 1411 pairs of positive temperature coefficient thermistors of a pair of rostellum.Fairly obvious, the point contact can avoid the heat of positive temperature coefficient thermistor 31 to be walked by the chamber cornice in positive temperature coefficient thermistor chamber 14, the instant heating slippages, one side of positive temperature coefficient thermistor 31 contacts with first spring leaf 321 on first pin 32, opposite side contacts with second spring leaf 331 on second pin 33, say that more specifically the both sides of positive temperature coefficient thermistor 31 are seized on both sides by the arms by first,

second pin

32,33 respectively, the bottom is then by a pair of rostellum 1411 supportings.The applicant has carried out contrast test with the structure in said structure and the prior art, prior art is in operate as normal, the power consumption of motor starter is 2.5-3w, and the power consumption of the motor starter 3 of the utility model structure only is 1.4-1.5w, therefore very help saves energy, effect also not only is this, because positive temperature coefficient thermistor 31 significantly reduces with the contact area in positive temperature coefficient thermistor chamber 14, promptly become the original whole contact in bottom surface and be the some contact, therefore the volume of positive temperature coefficient thermistor 31 effectively can be dwindled, the 35-40g of weight from prior art reduces to 15-16g, very helps to save the material of making positive temperature coefficient thermistor 31.

Ask for an interview Fig. 2 and still in conjunction with Fig. 1, when making cap 2, make that 2 sides towards housing 1 of cap are integrally formed to go out the first, second, third, fourth, the 5th, the

6th catch

21,22,23,24,25,26 and first, second, third, fourth anti-play limiting block prominent 2a, 2b, 2c, 2d and first, second, third, fourth, the

5th support flanges

2e, 2f, 2g, 2h, 2i.First,

second catch

21,22 is corresponding with the side of L inserted sheet 51, first, the prominent 2a of the second anti-play limiting block, 2b is corresponding with the end, two ends of L inserted sheet 51, and the first support flanges 2e is corresponding with the nearly middle part of L inserted sheet 51, so when the L of inserted sheet mechanism 5 inserted sheet 51 is planted on the cap 2 in the default L inserted slot 511 (Fig. 1 shows), by first,

second catch

21,22 cooperate the edge of housing 1 that L inserted sheet 51 is seized on both sides by the arms, simultaneously by first, the prominent 2a of the second anti-play limiting block, 2b is spacing to the two ends of L inserted sheet 51, and by the middle part supporting of the first support flanges 2e to L inserted sheet 51.Obvious, because said structure can be installed L inserted sheet 51 after cap 2 and housing 1 assembling finish in (inserting the embedding mode) L inserted slot 511 to the cap 2 again.Three, the

4th catch

23,24 is corresponding with the sidepiece of N inserted sheet 52, and by the 3rd, the 4th anti-play limiting block prominent 2c, 2d jointly to N inserted sheet 52 spacing and by second,

third support flanges

2f, 2g to 52 supportings of N inserted sheet.Obvious, said structure can be installed to N inserted sheet 52 in the N inserted slot 521 that defaults on the cap 2 to insert the embedding mode after cap 2 and housing 1 assemble equally again.Five, the

6th catch

25,26 is corresponding with the side of grounding insert-pin 53, and the 4th, the

5th support flanges

2h, 2i are to grounding insert-pin 53 supportings.As can be known, said structure equally can be after cap 2 and housing 1 assembling be planted grounding insert-pin 53 to by in the grounding insert-pin groove 531 that defaults on the cap 2 shown in Figure 1 to insert the embedding mode again.In a word, inserted sheet mechanism 5 is easy for installation, and the efficient height can ensure that L, N and grounding insert-

51,52,53 are solid and reliable.

Above-mentioned that mention and is connected with the secondary coil of load motor and first pin 32 and motor protecter 4 are electrically connected by first pin 32 of Fig. 1 signal, the main coil of second pin 33 and N inserted sheet 52 and load motor is electrically connected.L inserted sheet 51 power supplys connect, and N inserted sheet 52 is connected with power supply and electric capacity, and grounding insert-pin 53 is connected with ground wire.

Ask for an interview Fig. 3 and Fig. 5, the shell block 41 that material is plastics, has a shell chamber, the bottom in shell chamber offers first, second pin hole 411,412 that a pair of first, second end 452,462 that is used for first,

second pin

45,46 of confession is passed, and the hole shape size in first, second pin hole 411,412 should be guaranteed to adapt with first, second end 452,462.External wall of upper portion expansion at shell block 41 is provided with step 413, and lid 42 is configured on this step 413, and lid 42 preferentially uses the material of aluminium matter, and the central authorities of lid 42 are formed with a slightly cavity of protuberance.Material both can be that pottery also can be that the holder 47 of plastics integrally is contained in the shell chamber of shell block 41, and pin chamber 475 is formed on the lower end surface of holder 47.Specifically be attached to Fig. 5 as can be known, on first, second slot 4751,4752 that insert on the chamber wall that is embedded in pin chamber 475 first, second end 452,462 of first,

second pin

45,46, and first, second base portion 451,461 of first,

second pin

45,46 is located on the chamber diapire in pin chamber 475, and, the front end of first base portion 451 of first pin 45 is stretched in the contact limit chamber 474, material for the fixed contact b of silver with welding or riveted joint or fix the front end of first base portion 451 in other similar mode.Heating wire chamber 472 and bimetallic bar 471 are formed on the upper end of holder 47, a pair of first, second that is used for fixing heating wire 43 two ends connects post 431,432 and is firmly fixed on the holder 47, promptly be firmly fixed at the terminal point position, chamber in heating wire chamber 472, second connects post 432 should realize being electrically connected reliably with second base portion 461 of second pin 46.The bimetal leaf 44 that custom also is referred to as bimetallic element is disc on the whole, be shelved on the bimetallic bar 471, its side and heating wire 43 subsides towards heating wire 43 are touched, after heating wire 43 is heated, just can make bimetal leaf 44 distortion, upwards upset around this distortion shows as, and mediad is sunken into (falling into).

Can upper and lowerly float as the push rod 48 of actuating mechanism and to be placed in the jogger hole 473 that is preset in holder 47 central authorities (movable), the upper surface of push rod 48 is just corresponding to the central authorities of bimetal leaf 44, and the lower surface is just corresponding to the free end 491 of spring leaf 49.Specifically be attached to Fig. 5 as can be known, material is in contact limit chamber 474 places for the position of moving contact a on free end 491 of silver, thereby guarantees that it can and interaction corresponding with fixed contact b.Then in conjunction with Fig. 5, the a pair of spring leaf holder 476 that the stiff end 492 of spring leaf 49 is established by dashing forward on holder 47 lower surfaces is fixed in the bottom of holder 47, preferred fixed form is a rivet clasp, be not screwed but do not get rid of, and the stiff end 492 of spring leaf 49 and described first connects post 431 and realizes being connected reliably, for example by rivet stiff end 492 and first connect post 431 rivet clasps together.

Finish on to holder 47 by above-mentioned mention being provided with of whole parts after, holder 47 is installed with in the shell chamber of shell block 41, and by lid 42 cap seals, first, second end 452,462 of first,

second pin

45,46 is stretched in first, second pin hole 411,412 respectively and is gone out, and is serially connected with in the circuit under user mode for the utility model.

Ask for an interview Fig. 4, the difference of this enforcement illustration and previously described Fig. 3, Fig. 5 only is the form in the pin chamber 475 of holder 47 bottoms is omited to have done variation, and this variation is to settle the connector 40 that actuating mechanism increased in order to adapt to.That is to say, as actuating mechanism provided by the utility model except by the form shown in Figure 3, also can adopt version shown in Figure 4, promptly increase the carrier that a connector 40 is used as spring leaf 49, take spring leaf 49 and be set in the pin chamber 475 by connector 40.Specifically be with the stiff end 492 and connector 40 rivet clasps of rivet, and the free end 491 of spring leaf 49 is shelved on the connector 40 with spring leaf 49.In addition, slightly having done change, but the annexation of whole assembling process and each parts and even action principle are not and produce the essence difference between the embodiment of front yet to the shape of first, second pin 45,46.Hence one can see that, though the concrete shape to the pin chamber 475 on the holder 47, spring leaf 49, first,

second pin

45,46 can change, but can not think that this variation has the technical solution of the utility model of taking off category, so long as become butterfly in the past bimetal leaf 44 be shaped as disc, and the moving contact a as conducting/cutoff circuit is free on bimetal leaf 44, promptly avoids bimetal leaf 44 long-term charged design concepts all to will be understood that and belongs to the utility model design scope.

Qualification to first,

second pin

45,46 also is comparatively speaking above, only be to define according to Fig. 3 and position shown in Figure 5, in view of this, if first,

second pin

45,46 the position exchange, certainly corresponding other parts are as the same, should think so the equivalence, situation for example shown in Figure 4 promptly belongs to this.

During use, as long as with of the present utility model first,

second pin

45,46 are serially connected with in the electric circuit, when bimetal leaf 44 is experienced the radiant heat of the lid 42 of heating wire 43 or aluminium matter or external environment, bimetal leaf 44 just produces deformation, this deformation shows as upwards upset of periphery, and be the mediad lower recess, thereby promote push rod 48 to bottom offset, because the lower surface of push rod 48 is corresponding with the free end 491 of spring leaf 49, again because under normal circumstances, the moving contact a of the free end 491 of spring leaf 49 is that the fixed contact b on first base portion 451 with first pin 45 is closed mutually, therefore, when push rod 48 during to bottom offset, just spread to free end 491 by the lower surface of push rod 48, the position that forces the moving contact a on the free end 491 is towards the direction displacement that deviates from the fixed contact b on first base portion 451, thereby make and before be in moving under the closure state, fixed contact a, b separates, so that first,

second pin

45,46 loop disconnects, play the effect of protection compressor electric motor, promptly play the effect of protection load motor; When the radiant heat of the lid 42 of heating wire 43 or aluminium matter or external environment is in when being lower than bimetal leaf 44 temperature sensors, bimetal leaf 44 resets, its active force to push rod 48 disappears, the free end 491 of spring leaf 49 resets, fixed contact b on moving contact a on the free end 491 and first base portion 451 is closed mutually, and motor circuit recloses.In said process, owing to bimetal leaf 44 is not fixed by means of any fixture, and only be to be held on the bimetallic bar 471, and be discoidal, therefore,, can not cause its cracking no matter its deformation action is inferior arbitrarily repeatedly; Under circuit was in closure state, bimetal leaf 44 was uncharged, and promptly no current is flowed through, and bimetal leaf 44 does not participate in conduction, so can not exert an influence to its performance.Therefore, the utility model advantage about the technical scheme of motor protecter 4 of recommending is fairly obvious.

In sum, technical essential of the present utility model is the structure in positive temperature coefficient thermistor chamber 14 has been done reasonable improvement, thus the installation contact area that makes positive temperature coefficient thermistor 31 by before be that the point that the comprehensive contact in bottom surface in the prior art becomes as the needle-like with rostellum 1411 contacts.Reached the purpose of this utility model and embodied effect of the present utility model effectively---saved the material (because of volume-diminished) that is used to process positive temperature coefficient thermistor 31 and reduced the power consumption embodiment energy-conservation.

Claims

1; a kind of energy-saving type integral single phase AC electric motor starting; protector; it comprises housing (1); cover the cap (2) of joining mutually with housing (1); be located at the motor protecter (4) in the motor protecter chamber (11) of described housing (1); be installed on the described housing (1) motor starter (3) and by L inserted sheet (51); that N inserted sheet (52) and grounding insert-pin (53) constitute and be plugged on inserted sheet mechanism (5) on the described cap; described motor starter (3) comprises first; second pin (32; 33) and positive temperature coefficient thermistor (31); first pin (32) is plugged in the first pin chamber (12) of housing (1) and pastes with a side of positive temperature coefficient thermistor (31) and touches; second pin (33) is plugged in the second pin chamber (13) of housing (1) and pastes with the opposite side of positive temperature coefficient thermistor (31) and touches; described positive temperature coefficient thermistor (31) is located in the positive temperature coefficient thermistor chamber (14) of housing (1); it is characterized in that: the two ends in described positive temperature coefficient thermistor chamber (14) have respectively extended an abutment wall (141); a pair of abutment wall (141) is keeping parallelism each other; constitute a rostellum (1411) at position placed in the middle substantially, the top of each abutment wall (141); the both sides of the bottom of described positive temperature coefficient thermistor (31) contact with described rostellum (1411), and the both sides of positive temperature coefficient thermistor (31) are respectively by described first; second pin (32; 33) seize on both sides by the arms.

2, energy-saving type integral single phase AC electric motor starting according to claim 1, protector is characterized in that the shape of described rostellum (1411) is the ∧ font.

3, energy-saving type integral single phase AC electric motor starting according to claim 1, protector, it is characterized in that described cap (2) has extended first in the side towards described housing (1), second, the 3rd, the 4th, the 5th, the 6th catch (21,22,23,24,25,26) and extended first, second, the 3rd, prominent (the 2a of the 4th anti-play limiting block, 2b, 2c, 2d) and extended first, second, the 3rd, the 4th, the 5th support flanges (2e, 2f, 2g, 2h, 2i), wherein, first, second catch (21,22) corresponding with the side of described L inserted sheet (51), the described first anti-play limiting block prominent (2a) is corresponding with an end of L inserted sheet (51), the described second anti-play limiting block prominent (2b) is corresponding with the other end of L inserted sheet (51), and described first support flanges (2e) is corresponding with the middle part of L inserted sheet (51); Described the 3rd catch (23) is corresponding with the side of N inserted sheet (52), the described the 3rd anti-play limiting block prominent (2c) is corresponding with the nearly middle part of N inserted sheet (52), and the described the 4th anti-play limiting block prominent (2d) is corresponding with an end of N inserted sheet (52), and described the 4th catch (24) is corresponding with the sidepiece of N inserted sheet (52); Described the 5th catch (25) is corresponding with the sidepiece of an end of described grounding insert-pin (53), and described the 6th catch (26) is corresponding with the sidepiece of the other end of grounding insert-pin (53); Described second support flanges (2f) is corresponding with the other end of described N inserted sheet, and described the 3rd support flanges (2g) is corresponding with the middle part of N inserted sheet (52); Described the 4th support flanges (2h) is corresponding with an end of described grounding insert-pin (53), and described the 5th support flanges (2i) is corresponding with the middle part of grounding insert-pin (53).

4, energy-saving type integral single phase AC electric motor starting according to claim 1, protector is characterized in that described motor protecter (4) is an overload protective device.

5, according to claim 1 or 4 described energy-saving type integral single phase AC electric motor startings, protector, it is characterized in that described motor protecter (4) comprises shell block (41), lid (42), heating wire (43), bimetal leaf (44), first, second pin (45,46), moving, fixed contact (a, b), being contained in holder (47) in the shell chamber of shell block (41) and one is used for described moving, fixed contact (a, b) realize the actuating mechanism of cut-off/close each other, the bottom of holder (47) has pin chamber (475), top has heating wire chamber (472) and bimetallic bar (471), first base portion (451) of described first pin (45) is fixed on a side in pin chamber (475), second base portion (461) of described second pin (46) is fixed on the opposite side of pin chamber (475), the first end (452) of first pin (45) passes the first pin hole (411) on the shell block (41), and the second end (462) of second pin (46) passes the second pin hole (412) on the shell block (41), described fixed contact (b) is fixed on first base portion (451), described heating wire (43) is by first in a pair of cavity that is fixed in heating wire chamber (472), second connects post (431,432) be fixedly arranged in the heating wire chamber (472), and second connects post (432) fixedlys connected with described second base portion (461), described bimetal leaf (44) is a disc, be held on the bimetallic bar (471), and corresponding to the top of heating wire (43); Described actuating mechanism comprises push rod (48) and spring leaf (49), on the push rod (48), be located in the jogger hole (473) that is opened in holder (47) central authorities down versatilely, its upper end is corresponding with bimetal leaf (44), and the lower end of push rod (48) is corresponding with spring leaf (49), the stiff end (492) of spring leaf (49) is fixed on the spring leaf holder (476) of described holder (47) bottom, the free end (491) of spring leaf (49) is stretched in holder (47) the bottom default contact limit chamber (474), described moving contact (a) is fixed on the free end (491), and is corresponding with fixed contact (b) on described first base portion (451) that is fixed in first pin (45).

6, energy-saving type integral single phase AC electric motor starting according to claim 5, protector is characterized in that described first pin (45) is slotting solid on described pin chamber (475) to insert the embedding mode; Described second pin (46) is inserted solid on described pin chamber (475) to insert the embedding mode.

7, in solid welding or the rivet clasp any one of being fixedly connected as that energy-saving type integral single phase AC electric motor starting according to claim 5, protector, second base portion (461) and second that it is characterized in that described second pin (46) connect post (432) fixedlyed connected; The described first fixing fixed form that connects between the stiff end (492) of post (431) and spring leaf (49) is any one fixed form in welding or the riveted joint.

8, energy-saving type integral single phase AC electric motor starting according to claim 5, protector; it is characterized in that described moving contact (a) is fixed on the free end (491) of spring leaf (49) in any one mode in welding or the riveted joint; and described fixed contact (b) is fixed on first base portion (451) of first pin (45) in any one mode in welding or the riveted joint, and corresponding Face to face with moving contact (a).

9, according to claim 5 or 8 described energy-saving type integral single phase AC electric motor startings, protector, it is characterized in that described dynamic and static contact (a, b) is silver contact.

10, energy-saving type integral single phase AC electric motor starting according to claim 5, protector is characterized in that described actuating mechanism also includes one and is used to take the connector (40) that described spring leaf (49) is set to described holder (47) bottom.