CN104734429A - Energy-saving integrated type single-phase alternating current motor protection device - Google Patents

Abstract

The invention discloses an energy-saving integrated type single-phase alternating current motor protection device and belongs to the technical field of refrigeration compressors. The energy-saving integrated type single-phase alternating current motor protection device comprises a shell, a single-phase alternating current motor starter, a single-phase alternating current motor protector and a shell cover. A positive temperature coefficient thermistor cavity and a single-phase alternating current motor protector cavity are formed inside a shell cavity in an enclosed mode. The single-phase alternating current motor starter comprises a positive temperature coefficient thermistor, a first pin and a second pin, a first pin transition sheet and a second pin transition sheet extend from the first pin and the second pin respectively, and a first pin reed and a second pin reed are arranged on the first pin transition sheet and the second pin transition sheet respectively. The single-phase alternating current motor protector is arranged inside the single-phase alternating current motor protector cavity. The shell cover is matched with the shell and is provided with a grounding pin, a pin N and a pin L. The energy-saving integrated type single-phase alternating current motor protection device is characterized in that a pair of bottom wall protrusions are formed on the bottom wall of the positive temperature coefficient thermistor cavity, and the front wall and the back wall of the positive temperature coefficient thermistor cavity are both provided with side wall protrusions. The energy-saving integrated type single-phase alternating current motor protection device is good in energy-saving effect, small in size, light in weight, convenient and quick to install, simplified in structure and capable of preventing electrical short circuits, and guarantees the stability and reliability standards of the pins.

Description

Energy-saving type integral single phase AC electric motor protective device

Technical field

The invention belongs to technical field of refrigeration compressors, be specifically related to a kind of energy-saving type integral single phase AC electric motor protective device.

Background technology

Above mentioned energy-saving type integral single phase AC electric motor protective device is essentially energy-saving type integral single phase AC electric motor starting, protector; be that both having of starter for AC electrical motor in single-phase and load motor protector being gathered together makes single phase AC electric motor starting, have concurrently again load motor protection and the electrical installation of excellent energy-saving effect can also be embodied.

The technical information about starter for AC electrical motor in single-phase can be seen in disclosed Chinese patent literature, motor starter as CN2664280Y(architecture advances), CN2664281Y(motor starter), the motor starter of CN2664282Y(architecture advances) and the structure improved motor starter of CN2664283Y(), etc.; Technical information about load motor protector can be seen in equally in disclosed Chinese patent literature, typically as the overload protective device of CN100356652C(load motor); Technical information about single phase AC electric motor starting, protector can be seen in, equally as CN2606490Y(electric motor starting, protector in disclosed Chinese patent literature), CN2606491Y(Integral motor starting, protector) and Integral motor starting, the protector of CN102386815B(architecture advances).

At aforementioned single phase AC electric motor starting, in the prior art information systems of protector, typically as the " energy-saving type integral single phase AC electric motor starting of invention patent mandate notification number CN100581043C recommendation, protector ", the technical essential of this patent formula is: the positive temperature coefficient thermistor chamber of housing two ends and respectively in the position faced each other extendedly have an abutment wall, a pair abutment wall keeps parallel each other, on the top of each abutment wall, position placed in the middle is respectively configured with a rostellum substantially, the both sides of the bottom belonging to the positive temperature coefficient thermistor of the structural system of starter are contacted with rostellum, and the both side surface of positive temperature coefficient thermistor is respectively by first, second pin is seized on both sides by the arms.Specifically can see specification text the 4th page of final stage of this patent to the 5th page of first paragraph, and the technique effect that this patent formula produces can see the 4th page the 2nd section, specification.

But still there is following shortcoming in the starter for AC electrical motor in single-phase of aforementioned CN100581043C: one, the bearing area of positive temperature coefficient thermistor in the positive temperature coefficient thermistor chamber of housing significantly can be reduced although contacted with rostellum the both sides of the bottom of positive temperature coefficient thermistor, and then the volume of positive temperature coefficient thermistor is significantly reduced, such as weight alleviates to 15-16g from 35-40g, but the lateral margin of the circumferencial direction due to positive temperature coefficient thermistor (the applicant is defined as front and back lateral margin) still needs chamber, the front and back wall bump contact with positive temperature coefficient thermistor chamber, thus be not enough to embody ultimate attainment energy-saving effect, the volume being embodied in positive temperature coefficient thermistor is still bigger than normal, and weight is still and lays particular stress on.Theoretically, chamber, the front and back wall in positive temperature coefficient thermistor chamber also forms abutment wall and in abutment wall, forms rostellum and can make up aforementioned shortcoming and the volume of positive temperature coefficient thermistor is reduced further, weight is alleviated further and makes energy-saving effect embody ultimate attainment degree, but the experiment repeatedly through the applicant shows that this thinking is worthless, because on the one hand can to aforementioned first, the seizing on both sides by the arms to coordinate of second pin and positive temperature coefficient thermistor produces interference situations, the installation of starter is made to cause trouble because excessively occupying the space of the Width in positive temperature coefficient thermistor chamber on the other hand, its two, owing to being formed in the structure relative complex of a pair abutment wall self at the two ends in positive temperature coefficient thermistor chamber, thus cause the mould relative complex for the manufacture of housing, they are three years old, because rostellum is formed in abutment wall, thus the distance between the bottom of positive temperature coefficient thermistor and the bottom surface, chamber in bottom surface and positive temperature coefficient thermistor chamber is height and the rostellum height sum of abutment wall, so, there is the situation excessively raised by positive temperature coefficient thermistor, the top of positive temperature coefficient thermistor is made to lean out positive temperature coefficient thermistor chamber, and lean out part to be compensated by the protuberance chamber on cap (leaning out part to be insinuated in protuberance chamber), add the complexity of cap on the one hand, increase the contact area in positive temperature coefficient thermistor and protuberance chamber on the other hand, again on the one hand in order to ensure first, positive temperature coefficient thermistor is reliably seized on both sides by the arms in the middle position of both side surface corresponding to positive temperature coefficient thermistor and must by first by the second pin, the position of the second pin is upwards moved, make first, the supporting point (with the position of chamber wall bearing contact) of the chamber wall in the second pin and positive temperature coefficient thermistor chamber is moved to the top accent in positive temperature coefficient thermistor chamber, thus the installation stablizing effect of whole starter is had an impact, such as first, there is the anxiety of shaking off from positive temperature coefficient thermistor chamber in the second pin, and then cause first, the electrical contact failure of the second pin and positive temperature coefficient thermistor.Certainly, use the degree of depth of deepening positive temperature coefficient thermistor chamber by increase housing in the size of short transverse positive temperature coefficient thermistor entirety can be made to be positioned at positive temperature coefficient thermistor chamber and aforementioned unfavorable factor can be made up, but so design can enlarge markedly the volume of housing, namely produces the problem of attending to one thing and lose sight of another, they are four years old, because the second pin reed (patent claims the second spring leaf) of the first pin reed (patent claims the first spring leaf) of side surface contact of the first pin and positive temperature coefficient thermistor and the opposite side surface contact of the second pin and positive temperature coefficient thermistor is all with the surface contact of the state of in-line and positive temperature coefficient thermistor, namely first, second pin reed not only laterally walks abreast but also mutually fully corresponding, so when electric spark produces, positive temperature coefficient thermistor can produce all multiple crackses, because of on its relative two sides still by corresponding first, second pin elasticity of spring leaf holds on, and (cracked) part of breaking of the positive temperature coefficient thermistor held on by elasticity continues stably to be jammed in original position, and the fragment of remainder scatters, therefore power supply continues through the nubbin held on by elasticity of positive temperature coefficient thermistor, thus cause these nubbins and associated first, second pin reed melts mutually, then a kind of alloy presenting certain conductance is produced, consequently: first, electric short circuit is formed between second pin, electric short circuit accelerates again the generation of improper heat conversely further, so very likely force device to occur further fault, such as cause housing softening transform etc.

With regard to the cap of above-mentioned CN100581043C, there is following shortcoming: one be due to need to form on cap and towards the side of housing six for pin (comprising grounding pin, N pin and L pin) is stopped catch, four prevent the Anti-moving limiting block of pin play from dashing forward and five for the support flanges (specifically can see the 5th page the 2nd section to the 6th page the 1st section, the specification of this patent) for pin supporting, thus not only significantly increase the complexity of shell cover structure, and affect the installation effectiveness of pin; Two is because cap self structure is lost rationally, thus before cap lid is assigned in housing, first pin (i.e. grounding pin, N pin and L pin) must be assembled, that is first pin is planted in defaulting on cap corresponding pin groove (i.e. pin holes), then cap is coordinated with housing together with pin, so efficiency of assembling can be had a strong impact on, because in advance pin is installed on cap can produce interference to cap when coordinating with housing, and the stability of pin is also difficult to ensure, there is beat, loosening anxiety.

With regard to the load motor protector of above-mentioned CN100581043C; have the following disadvantages: owing to holder being only configured with the pin chamber held for spring leaf and pin (patent claims the first pin); thus when spring leaf and pin are contained in after in pin chamber; the locating effect of holder to spring leaf and pin is fragile; so once occur loosening property displacement, the electrical contact between the moving contact on spring leaf and the fixed contact on pin so can be affected or disconnects effect.

For above-mentioned prior art, be necessary then to improve, the applicant has done useful design for this reason, define technical scheme described below, and carried out analogue test and relevant test in the test center of the applicant taking under secrecy provision, result proves practicable.

Summary of the invention

Top priority of the present invention is to provide a kind of and contributes to significantly reducing the contact area that the positive temperature coefficient thermistor as starter contacts with the chamber wall in the positive temperature coefficient thermistor chamber be formed on housing and prevent heat from using because heat trnasfer loses the volume reducing positive temperature coefficient thermistor, save material and reduce energy consumption, be conducive to avoiding the rostellum contacted with the lateral margin of positive temperature coefficient thermistor excessively to occupy the Width in positive temperature coefficient thermistor chamber and the space of short transverse and use and guarantee first, the convenient effect that the fiting effect of the second pin and the corresponding both side surface of positive temperature coefficient thermistor and guaranteeing is installed, be of value to the abutment wall abandoned for building rostellum and use the structure simplifying positive temperature coefficient thermistor chamber and the mould structure simplified for the manufacture of housing, have and be convenient to avoid positive temperature coefficient thermistor lean out the top accent in positive temperature coefficient thermistor chamber and use the installation stablizing effect of all parts guaranteeing the structural system forming starter and electrical contact effect and have and be convenient to significantly to optimize the first pin reed of the first pin and the second pin reed of the second pin and the electrical contact mode of the corresponding both sides of positive temperature coefficient thermistor and use the cracked part after ensureing being broken of when electric spark produces positive temperature coefficient thermistor not by first, second pin reed clamps and then avoids first, electric short circuit is formed and the energy-saving type integral single phase AC electric motor protective device of protective housing effectively between second pin.

Another task of the present invention be to provide a kind of not only contributed to simplifying shell cover structure but also be conducive to improving using the installation effectiveness of grounding pin, N pin and L pin meet industrial amplification production and require and be of value to the energy-saving type integral single phase AC electric motor protective device significantly improving and the constraint locating effect of grounding pin, N pin and L pin is used to the reliable and stable degree of promoting pin.

A task more of the present invention be to provide a kind of contribute to the holder promoting single-phase motor protector reasonable structure and use and good locating effect is played to moving contact reed and fixed contact reed, to be conducive to easily protector pin, moving contact reed being installed on holder and to guarantee electrical contact between moving contact and fixed contact or disconnect the energy-saving type integral single phase AC electric motor protective device of effect.

For having embodied top priority of the present invention, technical scheme provided by the invention is: a kind of energy-saving type integral single phase AC electric motor protective device, comprise a housing, in the housing chamber of this housing and the position enclosure being positioned at the front side left end in housing chamber is configured with a positive temperature coefficient thermistor chamber, and be configured with a load motor protector chamber at the position enclosure of the front side right-hand member in housing chamber, one starter for AC electrical motor in single-phase, this starter for AC electrical motor in single-phase comprises a positive temperature coefficient thermistor, one first pin and one second pin, positive temperature coefficient thermistor is arranged in described positive temperature coefficient thermistor chamber with longitudinal state, first pin is plugged on that to be formed in shell endoceliac and in the first pin chamber communicated with the external world, one first pin transition plate is extended with on this first pin and towards the direction in positive temperature coefficient thermistor chamber, this the first pin transition plate is configured with the first pin reed in the position of left-hand face corresponding to positive temperature coefficient thermistor, this the first pin reed contacts with the left-hand face of described positive temperature coefficient thermistor, second pin is plugged on that to be formed in shell endoceliac and in same and extraneous the second pin chamber communicated, this second pin is equally extended with one second pin transition plate towards the direction in positive temperature coefficient thermistor chamber, this the second pin transition plate is configured with the second pin reed in the position of right lateral surface corresponding to positive temperature coefficient thermistor, this the second pin reed contacts with the right lateral surface of described positive temperature coefficient thermistor, one load motor protector, this load motor protector is arranged in described load motor protector chamber, one cap, this cap matches with described housing and covers described starter for AC electrical motor in single-phase and load motor protector and protects, this cap is provided with a grounding pin, one N pin and a L pin, be characterised in that: on the chamber diapire in described positive temperature coefficient thermistor chamber with transverse state be configured be raised in chamber bottom wall surface and shape of cross section is a pair diapire rostellum of ∧ font, this is not only spaced but also mutually keep front and back parallel diapire rostellum, on the ante-chamber wall and back cavity wall in positive temperature coefficient thermistor chamber and in mutually corresponding position along the short transverse of ante-chamber wall and back cavity wall respectively with longitudinal state be configured be raised in ante-chamber wall and back cavity wall surface and the sidewall rostellum of shape of cross section equally in ∧ font, sidewall rostellum on this ante-chamber wall and back cavity wall corresponds respectively to the both sides of a pair described diapire rostellum, the lower support of described positive temperature coefficient thermistor is on a pair described diapire rostellum, the front side of positive temperature coefficient thermistor contacts with the sidewall rostellum on ante-chamber wall, and the rear side of positive temperature coefficient thermistor contacts with the sidewall rostellum on back cavity wall.

In a specific embodiment of the present invention, the first described pin reed has a pair, and this to the first pin reed with eight or the morphosis of V-shaped on the first described pin transition plate; The second described pin reed has a pair, and this to the second pin reed with eight or the morphosis of V-shaped on the second described pin transition plate, wherein: first, second pin reed forms the staggered position relationship of cross each other; A pair cap rostellum is configured with towards the side of described housing and corresponding to the position in described positive temperature coefficient thermistor chamber at described cap, this is identical with described a pair diapire rostellum and correspond to the top of a pair diapire rostellum to the shape of cross section of cap rostellum, and described positive temperature coefficient thermistor upper support is on a pair cap rostellum.

In another specific embodiment of the present invention, the circular stack circle that one is raised in the surface of shell bottom wall is configured with in the shell bottom wall of described housing and back to the side in described housing chamber, and offer one first corresponding to the position in this circular stack circle, second jack and one the 3rd jack, first jack is corresponding with the first described pin chamber and by this first jack, the first pin chamber is communicated with the external world, second jack is corresponding with the second described pin chamber and by this second jack, the second pin chamber is communicated with the external world, the described load motor protector be arranged in described load motor protector chamber matches with the 3rd described jack, the position of the protector accent in described load motor protector chamber and limit post around the circumferencial direction of protector accent to be configured with the surface being raised in protector accent one group of cap with space state, and on described cap and in the position corresponding to one group of cap and limit post, offer quantity and cap limit one group of equal cap limiting hole of the quantity of post, this group cap limiting hole limits post with one group of cap and matches, described grounding pin, N pin and L pin arrange on the housing to insert embedding mode, wherein: in the housing chamber of described housing and the position enclosure in left side corresponding to described load motor protector chamber have one with the extraneous protector pin chamber communicated, the 3rd described jack is corresponding with protector pin chamber and by the 3rd jack, load motor protector chamber is communicated with the external world.

In another specific embodiment of the present invention, on described housing and on rear side of being positioned at, the position of right-hand member is configured with a housing plug base, and this housing plug base offers housing inserted slot, housing inserted slot is inserted and is embedded with a housing reed; Left chamber wall in described positive temperature coefficient thermistor chamber is configured with a pair transition plate supporting base of the first pin transition plate for supporting described first pin on the wall body of right chamber wall side, at this to transition plate supporting base being respectively configured with a transition plate supporting step, first pin transition plate is shelved on transition plate supporting step, and be configured with one first pin plug socket in the upper end of the first pin, be extended with a pin lead-out tablet in the upper end of the second described pin.

For having embodied another task of the present invention, technical scheme provided by the invention is: on described cap and back to the side in described housing chamber, be configured with one first pin being raised in the surface of cap insert embedding seat and one second pin inserts embedding seat, first pin inserts the left end that embedding seat is positioned at cap, and the second pin inserts the right-hand member that embedding seat is positioned at cap, insert on embedding seat at the first pin and be configured with grounding pin caulking groove and N pin caulking groove, and insert on embedding seat at the second pin and be configured with L pin caulking groove, described grounding pin and grounding pin caulking groove are inserted scarf and are closed, described N pin and N pin caulking groove are inserted scarf and are closed, described L pin and L pin caulking groove are inserted scarf and are closed.

In another specific embodiment of the present invention, to insert on embedding seat at described first pin and be extended with a pin electric insulation demarcation strip for grounding pin and N pin being intercepted in the side of inserting embedding seat back to described second pin with the state of inserting embedding seat perpendicular to the first pin, the degree of depth of described grounding pin caulking groove and N pin caulking groove is identical with the height that the first pin inserts embedding seat, it is identical that the second described pin height of inserting embedding seat and the first pin insert embedding seat, and the degree of depth of described L pin caulking groove is identical with the height that the second pin inserts embedding seat.

For having embodied a task more of the present invention, technical scheme provided by the invention is: described load motor protector comprises pedestal, holder, bimetal leaf, heating wire, first, second protector pin, moving contact reed and push rod, pedestal is configured with a pedestal chamber, and this pedestal with its pedestal chamber towards under state be contained in described load motor protector chamber, a tip-lever support is configured with at the middle position in pedestal chamber, a push rod resigning hole communicated with the external world is configured with at the middle position of the short transverse of tip-lever support, and the position of the accent in pedestal chamber is configured with a bimetal leaf mount around the circumferencial direction in pedestal chamber, holder is configured with a pedestal mating cavity towards the side of pedestal, by this pedestal mating cavity, holder is nested with on pedestal, a push-rod hole is offered at the middle position of holder, this push-rod hole is corresponding with described push rod resigning hole, holder is being configured with a pin reed mating groove back to the side of pedestal mating cavity, one moving contact reed mating groove, one protector pin holes, one pin reed locating flange and a moving contact reed locating flange, bimetal leaf is shelved in described bimetal leaf mount, and this bimetal leaf contacts back to the edge of the side of heating wire with the bimetal leaf support ring be arranged in bimetal leaf mount, heating wire corresponds to the top of bimetal leaf, and be arranged in described pedestal chamber under the state contacted with bimetal leaf, be configured with a heating wire first in one end of this heating wire and draw pin, this heating wire first is drawn pin and is being connected with the lower electrical of described second protector pin after described pedestal with described holder successively, and the other end of heating wire is configured with a heating wire second draws pin, this heating wire second is drawn pin and is being electrically connected with described moving contact reed after pedestal and holder successively equally, first protector pin leans out the sidepiece of holder and is inserted in described protector pin chamber, a fixed contact reed is extended with on the top of this first protector pin, this fixed contact reed matches with described pin reed mating groove, a fixed contact reed location hole is offered in one end of this fixed contact reed and corresponding to the position of described pin reed locating flange, this fixed contact reed location hole is nested with on pin reed locating flange, fixed contact reed the other end and be fixed with a fixed contact towards the side of moving contact reed, in the protector pin holes described in the insertion of bottom of the second protector pin, moving contact reed is matching with described moving contact reed mating groove corresponding to the position above described fixed contact reed, a moving contact spring leaf hole is offered in one end of this moving contact reed and corresponding to the position of described moving contact reed locating flange, this moving contact spring leaf hole is nested with on moving contact reed locating flange, a push rod pushing tow actuation lug is configured with at the middle part of moving contact reed and corresponding to the position of described push-rod hole, the protrusion direction of this push rod actuation lug is towards described push rod, the other end of moving contact reed is configured to free end and is fixed with a moving contact in the position corresponding to described fixed contact, the lower end of push rod is bearing in the middle position of bimetal leaf, and matching with push rod pushing tow actuation lug in the position of the below corresponding to described push rod pushing tow actuation lug successively in the upper end of push rod after described push rod resigning hole and push-rod hole, wherein: described fixed contact reed towards upper side and described moving contact reed towards under side limited by described cap, and the top of described second protector pin is electrically connected with described L pin after leaning out the protector pin holes be formed on cap.

Also have in a specific embodiment of the present invention, the roof of described pedestal offers a heating wire first and draws pin transitional pore and pin transitional pore drawn by a heating wire second, and on described holder, offer a heating wire first draw pin fairlead and pin fairlead drawn by a heating wire second, heating wire first draws pin transitional pore and heating wire first, and to draw pin fairlead corresponding, and heating wire second draws pin transitional pore and heating wire second, and to draw pin fairlead corresponding, the heating wire first of described heating wire is drawn pin and is drawn at communication channel routed over electrical heated filament first successively and to be insinuated into after pin transitional pore draws pin fairlead with heating wire first in described protector pin holes and to be connected with the lower electrical of described second protector pin, and the described heating wire second of heating wire is drawn pin and is insinuated into described moving contact reed mating groove and is electrically connected with described moving contact reed after communication channel routed over electrical heated filament second successively draws pin transitional pore and pin fairlead drawn by heating wire second.

More of the present invention and in a specific embodiment, on the roof of described pedestal and in the position of the both sides corresponding to described push rod resigning hole, be respectively configured with the support lug being depressed in top wall surface coordinate pit, and holder support lug is configured with on the chamber roof of described pedestal mating cavity and in the position corresponding to support lug cooperation pit, this holder support lug and support lug coordinate pit to match.

In an of the present invention and then specific embodiment, described L pin is extended with a protector pin electric connection part, and top and this protector pin electric connection part of described second protector pin are electrically connected; A fixed contact reed guide vane end stop and a moving contact reed positive stop lug boss is configured with on described cap and corresponding to the position in described load motor protector chamber, spacing to fixed contact reed by the contact of fixed contact reed guide vane end stop and described fixed contact reed, spacing to moving contact reed by the contact of moving contact reed positive stop lug boss and described moving contact reed; Described moving contact spring leaf hole is splined hole.

One of technique effect of technical scheme provided by the invention, due on the chamber diapire in positive temperature coefficient thermistor chamber with transverse state be configured be raised in chamber bottom wall surface and shape of cross section is a pair diapire rostellum of ∧ font, and on the wall of chamber, front and back and at the correspondence position of side in opposite directions, be respectively configured with the shape of cross section that is raised in chamber, a front and back wall surface sidewall rostellum identical with diapire rostellum, thus the bottom of the positive temperature coefficient thermistor be arranged in positive temperature coefficient thermistor chamber and side, front and back can be made significantly to reduce with the contact area of chamber diapire and chamber sidewall respectively, not only can prevent heat from making the power consumption of positive temperature coefficient thermistor be reduced to below 1W because of heat trnasfer loss, there is significant energy-saving effect, and the volume of positive temperature coefficient thermistor is significantly reduced, weight saving is to below 10g, there is the strong point significantly economized on resources, two, rational in infrastructure due to diapire rostellum and sidewall rostellum, thus can avoid excessively occupying the width in positive temperature coefficient thermistor chamber and the space of short transverse, not only can guarantee the fiting effect of first, second pin reed and the corresponding both sides of positive temperature coefficient thermistor, and convenient requirement of installing can be met, three, owing to having abandoned in prior art for building the abutment wall of diapire rostellum, thus having simplified the structure in positive temperature coefficient thermistor chamber, and then having simplified the mould structure for the manufacture of housing, four, volume due to diapire rostellum, sidewall rostellum is little of ignoring, and due to coexisting of diapire rostellum and sidewall rostellum, thus make the volume of positive temperature coefficient thermistor be reduced and avoid the top accent that its top leans out positive temperature coefficient thermistor chamber, the installation of all parts of the structural system of formation starter for AC electrical motor in single-phase and electrical contact effect are fully demonstrated, five, owing to first, second pin reed to be formed each other the staggered position relationship of cross, thus there will not be the nipped situation of cracked part when positive temperature coefficient thermistor is cracked, both can prevent electric short circuit, housing temperature distortion and even damage can be avoided again, six, because first, second pin being configured with the surface being raised in cap on cap and back to the side in housing chamber inserts embedding seat, thus can meet first cap and housing are assembled again grounding pin, L pin and N pin are installed on housing fast and do not produce the installation requirement of interference.In addition, insert the grounding pin caulking groove on embedding seat, N pin caulking groove and the second pin L pin caulking groove inserted on embedding seat due to the first pin and have good constraint locating effect to grounding pin, N pin and L pin respectively, thus the stability of pin and reliability standard are ensured; Seven, the top due to the holder at load motor protector is configured with pin reed locating flange and moving contact reed locating flange, thus can play the reliable positioning action to fixed contact reed and moving contact reed respectively; Eight, because the fixed contact reed of the first protector pin, moving contact reed and the second protector pin are installed on holder easily and quickly in the position corresponding to pin reed mating groove, moving contact reed mating groove and protector pin holes on holder respectively, thus both can improve installation effectiveness, the reliable electrical contact between dynamic and static contact or disconnection effect can be guaranteed again; Nine, owing to being configured with heating wire matching seat in the pedestal chamber of pedestal, thus keeping after chamber coordinates when heating wire and the heating wire on heating wire matching seat and there will not be arching phenomenon, the entirety of bimetal leaf is ensured by thermal effect.

Accompanying drawing explanation

Fig. 1 is embodiments of the invention structure chart.

Fig. 2 is the face upwarding assumption diagram of the housing of state shown in Fig. 1.

Fig. 3 is the face upwarding assumption diagram of the cap shown in Fig. 1.

Fig. 4 is the three-dimensional assembling structure figure of the load motor protector shown in Fig. 1.

Fig. 5 is the face upwarding assumption diagram of the pedestal of state shown in Fig. 4.

Embodiment

In order to enable the auditor of Patent Office especially the public clearly understand technical spirit of the present invention and beneficial effect, applicant will elaborate below by way of example, but be not all the restriction to the present invention program to the description of embodiment, any conceive according to the present invention done be only pro forma but not substantial equivalent transformation and all should be considered as technical scheme category of the present invention.

Everyly in the following description relate to upper and lower, left and right, the concept of directivity (or claim directionality) of front and rear is all for the location status residing for the figure be described, object is to facilitate public understanding, thus can not be understood as being particularly limited to technical scheme provided by the invention.

Refer to Fig. 1, one housing 1 of the structural system belonging to energy-saving type integral single phase AC electric motor protective device of the present invention has been shown in this Fig. 1, the geometry of this housing 1 is substantially in cuboid, and preferably adopt the type of being molded out of plastic (cap 4 will mentioned is with example) below, in the housing chamber 11 of this housing 1 and the position enclosure being positioned at the front side left end in housing chamber 11 is configured with a positive temperature coefficient thermistor chamber 12, and be configured with a load motor protector chamber 13 at the position enclosure of the front side right-hand member in housing chamber 11; one starter for AC electrical motor in single-phase 2, this starter for AC electrical motor in single-phase 2 comprises a positive temperature coefficient thermistor 21, one first pin 22 and one second pin 23, positive temperature coefficient thermistor 21 is arranged in positive temperature coefficient thermistor chamber 12 with longitudinal state, first pin 22 be plugged on be formed in housing chamber 11 and in the first pin chamber 111 communicated with the external world, one first pin transition plate 221 is extended with on this first pin 22 and towards the direction in positive temperature coefficient thermistor chamber 12, this the first pin transition plate 221 is configured with the first pin reed 2211 in the position of left-hand face corresponding to positive temperature coefficient thermistor 21, this the first pin reed 2211 contacts (electrical contact) with the left-hand face of aforementioned positive temperature coefficient thermistor 21, second pin 23 is plugged on and is formed in the second pin chamber 112 that is in housing chamber 11 and that communicate with the external world equally, this second pin 23 is equally extended with one second pin transition plate 231 towards the direction in positive temperature coefficient thermistor chamber 12, this the second pin transition plate 231 is configured with the second pin reed 2311 in the position of right lateral surface corresponding to positive temperature coefficient thermistor 21, this the second pin reed 2311 contacts with the right lateral surface of positive temperature coefficient thermistor 21, one load motor protector 3, this load motor protector 3 is arranged in aforementioned load motor protector chamber 13, one cap 4, this cap 4 matches with aforementioned housing 1 and covers aforementioned starter for AC electrical motor in single-phase 2 and load motor protector 3 and protects, and this cap 4 is provided with grounding pin 5, N pin 6 and a L pin 7.

Housing 1 is as shown in Figure 1 known, cap 4 is by the form of embedding pin and housing 1 scarf, so be configured with one first hasp 17a on the left side outer wall of housing 1, and in housing chamber 11 and the position being positioned at the rear side left end in housing chamber 11 be configured with one second hasp 17b and be configured with one the 3rd hasp 17c in the position of the rear side right-hand member in housing chamber 11.

Refer to Fig. 3 and composition graphs 1; aforesaid cap 4 is extended with one first embedding pin 46a, the embedding pin 46c of one second embedding pin 46b and the 3rd; first embedding pin 46a and aforesaid first hasp 17a scarf; second embedding pin 46b and aforesaid second hasp 17b scarf; and at the 3rd embedding pin 46c and aforesaid second hasp 17c scarf; thus cap 4 is reliably covered to cover on housing 1 and to housing chamber 11 and protect, namely aforesaid starter for AC electrical motor in single-phase 2 and load motor protector 3 are covered and protect.

Preferably, a pin transition plate slot to make way 124 is offered on the top of the back cavity wall in aforementioned positive temperature coefficient thermistor chamber 12, above mentioned the first pin transition plate 221 by the first pin 22 extends enters positive temperature coefficient thermistor chamber 12 and corresponds to the left side of positive temperature coefficient thermistor 21 after this first pin transition plate slot to make way 124, and the first pin transition plate slot to make way 124 also has the positioning action good to the first pin transition plate 221.Same reason, offers one second pin lead-out tablet slot to make way 18(also will mention in the following description on the top of the housing rear wall of aforementioned housing 1 and corresponding to the position of the second pin 23).

Please continue to refer to Fig. 1, technical essential as technical scheme provided by the invention: on the chamber diapire in aforementioned positive temperature coefficient thermistor chamber 12 with transverse state (here alleged transverse state with state shown in Fig. 1 from left to right) be configured be raised in chamber bottom wall surface and shape of cross section is a pair diapire rostellum 121 of ∧ font, this is not only spaced but also mutually keep front and back parallel diapire rostellum 121, on the ante-chamber wall and back cavity wall in positive temperature coefficient thermistor chamber 12 and in mutually corresponding position along the short transverse of ante-chamber wall and back cavity wall respectively with longitudinal state be configured be raised in ante-chamber wall and back cavity wall surface and the sidewall rostellum 122 of shape of cross section equally in ∧ font, sidewall rostellum 122 on this ante-chamber wall and back cavity wall corresponds respectively to the both sides of a pair described diapire rostellum 121, the lower support of aforementioned positive temperature coefficient thermistor 21 is on a pair diapire rostellum 121, the front side of positive temperature coefficient thermistor 21 contacts with the sidewall rostellum 122 on ante-chamber wall, and the rear side of positive temperature coefficient thermistor 21 contacts with the sidewall rostellum 122 on back cavity wall.

Preferably, the length of aforesaid a pair diapire rostellum 121 is equal with the thickness of positive temperature coefficient thermistor 21 or slightly larger than the thickness of positive temperature coefficient thermistor 21 substantially.

Aforesaid first pin reed 2211 has a pair, and this to the first pin reed 2211 with eight or the morphosis of V-shaped on the first pin transition plate 221; Aforesaid second pin reed 2311 has a pair, and this to the second pin reed 2311 equally with eight or the morphosis of V-shaped on the second described pin transition plate 23, wherein: first, second pin reed 2211,2311 forms the position relationship that cross interlocks each other.

Further, specifically as shown in Figure 3, aforementioned cap 4 towards state shown in the side of housing 1 and Fig. 1 towards under side and be configured with the surface being raised in cap 4 for a pair in the position corresponding to aforementioned positive temperature coefficient thermistor chamber 12 and the cap rostellum 47 of shape of cross section equally in ∧ font, this corresponds to the top of aforesaid a pair diapire rostellum 121 to cap rostellum 47, the top (i.e. top) of aforesaid positive temperature coefficient thermistor 21 is bearing on a pair cap rostellum 47, that is the top of positive temperature coefficient thermistor 21 contacts with a pair cap rostellum 47.The mechanism of action of a pair cap rostellum 47 is with a pair diapire rostellum 121.

Aforesaid by first, second pin reed 2211, 2311 to form the positive effect of position relationship that cross interlocks each other as follows: when producing electric spark, positive temperature coefficient thermistor 21 can produce all multiple crackses, first pin reed 2211 of its opposite flank i.e. its left surface and right flank and the second pin reed 2311 can not produce the situation supported the cracked partial elastic of positive temperature coefficient thermistor 21, guarantee that (cracked) part of breaking of positive temperature coefficient thermistor 21 comes off comprehensively to scatter, namely no longer exist prior art such by first, second pin reed 2211, 2311 situations of jointly clamping fragment, avoid the cracked part in prior art and associated first, the phenomenon that second pin reed melts mutually, first, second pin 22, electric short circuit is there will not be between 23, stop the generation of improper heat, the further fault of device can be avoided such as to avoid housing 1 to be heated softening transform.

Refer to Fig. 2 and composition graphs 1, the circular stack circle 14 that one is raised in the surface of shell bottom wall is configured with in the shell bottom wall of aforesaid housing 1 and back to the side in aforementioned housing chamber 11, and offer one first corresponding to the position in this circular stack circle 14, second jack 15a, 15b and 1 the 3rd jack 15c, first jack 15a is corresponding with aforesaid first pin chamber 111 and by this first jack 15a, the first pin chamber 111 is communicated with the external world, second jack 15b is corresponding with aforesaid second pin chamber 112 and by this second jack 15b, the second pin chamber 112 is communicated with the external world, the load motor protector 3 be arranged in aforementioned load motor protector chamber 13 matches with aforesaid 3rd jack 15c.Aforesaid first, second jack 15a, 15b and the 3rd jack 15c matches with three terminals of the motor of refrigerant compressor.

As shown in Figure 1; the position of the protector accent in aforementioned load motor protector chamber 13 and to limit post 131(the present embodiment around the circumferencial direction of protector accent to be configured with the surface being raised in protector accent one group of cap with space state be four); and to offer one group of cap limiting hole 41(the present embodiment that quantity and cap limit the quantity of post 131 equal on aforesaid cap 4 and in the position corresponding to one group of cap and limit post 131 be four), this group cap limiting hole 41 limits post 131 with one group of cap and matches.Aforesaid grounding pin 5, N pin 6 and L pin 7 are arranged on described housing 4 to insert embedding mode.In the housing chamber 11 of described housing 1 and the position enclosure in left side corresponding to described load motor protector chamber 13 have one with the extraneous protector pin chamber 113 communicated, aforesaid 3rd jack 15c is corresponding with protector pin chamber 113 and by the 3rd jack 15c, load motor protector chamber 13 is communicated with the external world.

On aforesaid housing 1 and on rear side of being positioned at, the position of right-hand member is configured with a housing plug base 16, this housing plug base 16 offers housing inserted slot 161, housing inserted slot 161 is inserted and is embedded with a housing reed 1611, this housing reed 1611 also can be described as housing pin, belongs to transfer terminal, left chamber wall in aforementioned positive temperature coefficient thermistor chamber 12 is configured with a pair transition plate supporting base 123 of the first pin transition plate 221 for being bearing in aforementioned first pin 22 on the wall body of right chamber wall side, at this to transition plate supporting base 123 being respectively configured with a transition plate supporting step 1231, first pin transition plate 221 is shelved on transition plate supporting step 1231 in positive temperature coefficient thermistor chamber 12, and be configured with one first pin plug socket 222 in the upper end of the first pin 22, this the first pin plug socket 222 is electrically connected with the N pin 6 also will mentioned below, a pin lead-out tablet 232 is extended with in the upper end of aforesaid second pin 23, this pin lead-out tablet 232 is in transit to be stretched over outside housing chamber 11 after aforesaid second pin lead-out tablet slot to make way 18, and be electrically connected with one end of external operation electric capacity.

As shown in Figure 1, on aforesaid cap 4 and back to location status shown in the side in housing chamber 11 and Fig. 1 towards on side be configured with one first pin being raised in the surface of cap 4 and insert embedding seat 42 and one second pin inserts embedding seat 43, first pin inserts the left end that embedding seat 42 is positioned at cap 4, and the second pin inserts the right-hand member that embedding seat 43 is positioned at cap 4, insert at the first pin and embedding seat 42 is configured with the grounding pin caulking groove 421 that shape and the shape as the grounding pin 5 of transfer terminal adapt and the N pin caulking groove 422 adapted with the shape of N pin 6, and insert at the second pin the L pin caulking groove 431 that shape that embedding seat 43 is configured with shape and L pin 7 adapts, grounding pin 5 and grounding pin caulking groove 421 are inserted scarf and are closed, N pin 6 and N pin caulking groove 422 are inserted scarf and are closed, L pin 7 and L pin caulking groove 431 are inserted scarf and are closed.

As shown in Figure 1, to insert on embedding seat 42 at aforesaid first pin and be extended with one for intercepting the pin electric insulation demarcation strip 423 namely separating grounding pin 5 and N pin 6 in the side (i.e. the left side of shown position state) of inserting embedding seat 43 back to the second pin with the state of inserting embedding seat 42 perpendicular to the first pin, the height that the degree of depth and first pin of aforesaid grounding pin caulking groove 421 and N pin caulking groove 422 insert embedding seat 42 is identical, it is identical that the aforesaid second pin height of inserting embedding seat 43 and the first pin insert embedding seat 42, and the degree of depth of described L pin caulking groove 431 is identical with the height that the second pin inserts embedding seat 43.

The second pin inserted embedding seat 42 owing to defining aforesaid first pin with grounding pin caulking groove 421 and N pin caulking groove 422 on cap 4 and have a L pin caulking groove 431 inserts embedding seat 43, thus when assembling, can without the need to taking grounding pin 5 into account, first cap 4 is coordinated with housing 1 under the prerequisite of N pin 6 and L pin 7, then again by grounding pin 5, N pin 6 and L pin 7 are inserted in grounding pin caulking groove 421 respectively, N pin caulking groove 422 and L pin caulking groove 431, thus relative to prior art, structure of the present invention can not suffer the interference effect of aforementioned three pins when installing cap 4, and the corresponding technique effect referred in applicant's superincumbent technique effect hurdle can be embodied.Aforesaid N pin 6 is connected with the external other end of operation electric capacity and one end of external power supply in a state of use, and aforesaid N pin 7 is connected with the other end of external power supply.

Refer to Fig. 4 and composition graphs 1, above mentioned load motor protector 3 preferably but not the structure be definitely limited to is as follows: comprise pedestal 31, holder 32, bimetal leaf 33, heating wire 34, first, second protector pin 35, 36, moving contact reed 37 and push rod 38, pedestal 31 is configured with a pedestal chamber 311, and this pedestal 31 with its pedestal chamber 311 towards under state be contained in aforementioned load motor protector chamber 13, a tip-lever support 3111 is configured with at the middle position in pedestal chamber 311, a push rod resigning hole 31111 communicated with the external world is configured with at the middle position of the short transverse of tip-lever support 3111, and the position of the accent in pedestal chamber 311 is configured with a bimetal leaf mount 3112 around the circumferencial direction in pedestal chamber 311, holder 32 is configured with a pedestal mating cavity 321 towards the side of pedestal 31, by this pedestal mating cavity 321, holder 32 is nested with on pedestal 31, and the lower edge of this holder 32 contacts with the step surface 317 on the outer wall being formed in pedestal 31, a push-rod hole 327 is offered at the middle position of holder 32, this push-rod hole 327 is corresponding with push rod resigning hole 31111, holder 32 is being configured with a pin reed mating groove 322 back to the side of pedestal mating cavity 321, one moving contact reed mating groove 323, one protector pin holes 324, one pin reed locating flange 325 and a moving contact reed locating flange 326, bimetal leaf 33 is shelved in aforementioned bimetal leaf mount 3112, and this bimetal leaf 33 contacts back to the edge of the side of heating wire 34 by with the bimetal leaf support ring 31121 be arranged in bimetal leaf mount 3112, heating wire 34 corresponds to the top of bimetal leaf 33, and be arranged under the state contacted with bimetal leaf 33 in pedestal chamber 311, be configured with a heating wire first in one end of this heating wire 34 and draw pin 341, this heating wire first is drawn pin 341 and is being connected with the lower electrical of aforementioned second protector pin 36 after pedestal 31 with holder 32 successively, and the other end of heating wire 34 is configured with a heating wire second draws pin 342, this heating wire second is drawn pin 342 and is being electrically connected with the electrical connection flange 374 on aforementioned moving contact reed 37 after pedestal 31 and holder 32 successively equally, first protector pin 35 leans out the sidepiece of holder 32 and is inserted in aforementioned protector pin chamber 113, a fixed contact reed 351 is extended with on the top of this first protector pin 35, this fixed contact reed 351 matches with aforesaid pin reed mating groove 322, a fixed contact reed location hole 3511 is offered in one end of this fixed contact reed 351 and corresponding to the position of aforementioned pin reed locating flange 325, this fixed contact reed location hole 3511 is nested with on pin reed locating flange 325, fixed contact reed 351 the other end and above the side towards moving contact reed 37, be fixed with a fixed contact 3512, the bottom of the second protector pin 36 is inserted in aforesaid protector pin holes 324, moving contact reed 37 is matching with aforementioned moving contact reed mating groove 323 corresponding to the position above aforementioned fixed contact reed 351, a moving contact spring leaf hole 371 is offered in one end of this moving contact reed 37 and corresponding to the position of aforementioned moving contact reed locating flange 326, this moving contact spring leaf hole 371 is nested with on moving contact reed locating flange 326, a push rod pushing tow actuation lug 372 is configured with at the middle part of moving contact reed 37 and corresponding to the position of aforementioned push-rod hole 327, the protrusion direction of this push rod actuation lug 372 is towards aforementioned push rod 38, the other end of moving contact reed 37 is configured to free end and is fixed with a moving contact 373 in the position corresponding to described fixed contact 3512, the lower end of push rod 38 that material is preferably pottery or plastics is bearing in the middle position of bimetal leaf 33, and matching with push rod pushing tow actuation lug 372 in the position of the below corresponding to aforementioned push rod pushing tow actuation lug 372 successively in the upper end of push rod 38 after described push rod resigning hole 31111 and push-rod hole 327.Wherein: aforementioned fixed contact reed 351 towards upper side and moving contact reed 37 towards under side limited by aforementioned cap 4, and the top of aforementioned second protector pin 36 is electrically connected with aforementioned L pin 7 after leaning out the protector pin holes 44 be formed on cap 4.One of three terminals of aforesaid first protector pin 35 and compressor are connected.

Ask for an interview Fig. 5 and composition graphs 4, as shown in Figure 5, the one group of heating wire matching seat 3113 being raised in chamber wall surface is formed in space state in aforementioned pedestal chamber 311 and around the circumferencial direction of the chamber wall in pedestal chamber 311, this group heating wire matching seat 3113 is respectively configured with a heating wire and keeps chamber 31131, aforesaid heating wire 34 and heating wire are kept chamber 31131 and are matched.As shown in Figure 4, the roof of aforementioned pedestal 31 offers a heating wire first and draws pin transitional pore 314 and pin transitional pore 315 drawn by a heating wire second, and on described holder 32, offer a heating wire first draw pin fairlead 328a and pin fairlead 328b drawn by a heating wire second, heating wire first draws pin transitional pore 314 and heating wire first, and to draw pin fairlead 328a corresponding, and heating wire second draws pin transitional pore 315 and heating wire second, and to draw pin fairlead 328b corresponding, the heating wire first of aforementioned heating wire 34 is drawn pin 341 and is drawn at communication channel routed over electrical heated filament first successively and to be insinuated into after pin transitional pore 314 draws pin fairlead 328a with heating wire first in aforementioned protector pin holes 324 and to be connected with the lower electrical of aforementioned second protector pin 36, and the aforementioned heating wire second of heating wire 34 is drawn pin 342 and is insinuated into described moving contact reed mating groove 323 and is electrically connected with described moving contact reed 37 after communication channel routed over electrical heated filament second successively draws pin transitional pore 315 and pin fairlead 328b drawn by heating wire second.

Continue to see Fig. 4, on the aforementioned roof stating pedestal 31 and in the position of the both sides corresponding to aforementioned push rod resigning hole 31111, be respectively configured with the support lug being depressed in top wall surface coordinate pit 316, and holder support lug 3211 is configured with on the chamber roof of aforementioned pedestal mating cavity 321 and in the position corresponding to support lug cooperation pit 316, this holder support lug 3211 and support lug coordinate pit 316 to match.

Still see Fig. 1, aforesaid L pin 7 is extended with a protector pin electric connection part 71, and top and this protector pin electric connection part 71 of aforementioned second protector pin 36 are electrically connected.

Refer to Fig. 3 and composition graphs 4; an a fixed contact reed guide vane end stop 45a and moving contact reed positive stop lug boss 45b is configured with on aforementioned cap 4 and corresponding to the position in aforementioned load motor protector chamber 13; spacing to fixed contact reed 351 by the contact of fixed contact reed guide vane end stop 45a and aforementioned fixed contact reed 351, spacing to moving contact reed 37 by the contact of moving contact reed positive stop lug boss 45b and aforementioned moving contact reed 37.Preferably, aforesaid moving contact spring leaf hole 371 is splined hole, significantly promotes the fiting effect of moving contact reed 37 and moving contact reed locating flange 326 by this splined hole.According to the reason of drawing inferences about other cases from one instance, aforesaid fixed contact reed location hole 3511 also can be splined hole.

Because the operation principle of starter for AC electrical motor in single-phase 2 belongs to prior art, such as can see Chinese patent Authorization Notice No. CN2664280Y, CN2664281Y, CN2664282Y and the CN2664283Y mentioned in the superincumbent background technology hurdle of applicant, etc., therefore applicant repeats no more.

With regard to load motor protector 3 of the present invention, as long as by first, second pin 35, 36 are serially connected with in electric circuit, when bimetal leaf 33 experiences the radiant heat of heating wire 34 or external environment, bimetal leaf 33 just produces deformation, this deformation shows as periphery and overturns downwards, central part then upwards arches upward (protuberance), thus promote push rod 38 to top offset, upper surface due to push rod 38 is corresponding with the push rod pushing tow actuation lug 372 of moving contact reed 37, again due under normal circumstances, the moving contact 373 of moving contact reed 37 is closed with fixed contact 3512 phase on moving contact reed 351, therefore, when push rod 38 is to top offset, just push rod pushing tow actuation lug 372 is spreaded to by the upper surface of push rod 38, force the position of moving contact 373 towards the direction displacement deviating from fixed contact 3512, thus dynamic under making previously to be in closure state, fixed contact 373, 3512 are separated, to make first, second pin 35, the loop of 36 disconnects, play the effect of protection compressor electric motor, namely the effect of protection load motor is played, when the radiant heat of heating wire 34 or external environment be in respond to lower than bimetal leaf 33 and the temperature deformed time, bimetal leaf 33 resets, its active force to push rod 38 disappears, moving contact 373 on moving contact reed 37 closes with fixed contact 3512 phase on fixed contact reed 351, and motor circuit recloses.In above process, because bimetal leaf 33 is not fixed by means of any fixture, and be only be held in bimetal leaf mount 3112, and be discoidal, therefore, no matter its deformation action is repeatedly secondary arbitrarily, all can not cause its cracking; Under circuit is in closure state, because push rod 38 is pottery or plastic material, thus bimetal leaf 33 is uncharged, and namely no current flows through, and bimetal leaf 33 does not participate in conduction, so can not have an impact to its performance.

In sum, technical essential of the present invention is to have made rational modification to the structure in positive temperature coefficient thermistor chamber 12, thus make the installation contact area of positive temperature coefficient thermistor 21 by the diapire in the bottom surface in i.e. prior art before and front and back sides and positive temperature coefficient thermistor chamber 12, the comprehensive contact of front-rear side walls becomes and the point cantact as the needle-like of diapire rostellum 121 and sidewall rostellum 122, the volume of the positive temperature coefficient thermistor 21 of starter for AC electrical motor in single-phase 2 is significantly reduced (weight saving is to below 10g), and power consumption is significantly reduced to below 1W and is embodied energy-conservation, cash the corresponding technique effect referred in applicant's superincumbent technique effect hurdle.

Claims (10)

1. an energy-saving type integral single phase AC electric motor protective device, comprise a housing (1), in the housing chamber (11) of this housing (1) and the position enclosure being positioned at the front side left end in housing chamber (11) is configured with a positive temperature coefficient thermistor chamber (12), and be configured with a load motor protector chamber (13) at the position enclosure of the front side right-hand member of housing chamber (11); one starter for AC electrical motor in single-phase (2), this starter for AC electrical motor in single-phase (2) comprises a positive temperature coefficient thermistor (21), one first pin (22) and one second pin (23), positive temperature coefficient thermistor (21) is arranged in described positive temperature coefficient thermistor chamber (12) with longitudinal state, first pin (22) be plugged on be formed in housing chamber (11) and in the first pin chamber (111) communicated with the external world, upper at this first pin (22) and direction towards positive temperature coefficient thermistor chamber (12) is extended with one first pin transition plate (221), go up at this first pin transition plate (221) and be configured with the first pin reed (2211) in the position of the left-hand face corresponding to positive temperature coefficient thermistor (21), this the first pin reed (2211) contacts with the left-hand face of described positive temperature coefficient thermistor (21), second pin (23) is plugged on and is formed in the second pin chamber (112) that is in housing chamber (11) and that communicate with the external world equally, go up at this second pin (23) and be extended with one second pin transition plate (231) towards the direction of positive temperature coefficient thermistor chamber (12) equally, go up at this second pin transition plate (231) and be configured with the second pin reed (2311) in the position of the right lateral surface corresponding to positive temperature coefficient thermistor (21), this the second pin reed (2311) contacts with the right lateral surface of described positive temperature coefficient thermistor (21), one load motor protector (3), this load motor protector (3) is arranged in described load motor protector chamber (13), one cap (4), this cap (4) matches with described housing (1) and covers described starter for AC electrical motor in single-phase (2) and load motor protector (3) and protects, this cap (4) is provided with a grounding pin (5), one N pin (6) and a L pin (7), it is characterized in that: on the chamber diapire of described positive temperature coefficient thermistor chamber (12) with transverse state be configured be raised in chamber bottom wall surface and shape of cross section is a pair diapire rostellum (121) of ∧ font, this is not only spaced but also mutually keep front and back parallel diapire rostellum (121), on the ante-chamber wall and back cavity wall of positive temperature coefficient thermistor chamber (12) and in mutually corresponding position along the short transverse of ante-chamber wall and back cavity wall respectively with longitudinal state be configured be raised in ante-chamber wall and back cavity wall surface and the sidewall rostellum (122) of shape of cross section equally in ∧ font, sidewall rostellum (122) on this ante-chamber wall and back cavity wall corresponds respectively to the both sides of a pair described diapire rostellum (121), the lower support of described positive temperature coefficient thermistor (21) is on a pair described diapire rostellum (121), the front side of positive temperature coefficient thermistor (21) contacts with the sidewall rostellum (122) on ante-chamber wall, and the rear side of positive temperature coefficient thermistor (21) contacts with the sidewall rostellum (122) on back cavity wall.

2. energy-saving type integral single phase AC electric motor protective device according to claim 1, it is characterized in that the first described pin reed (2211) has a pair, and this to the first pin reed (2211) with eight or the morphosis of V-shaped on the first described pin transition plate (221); The second described pin reed (2311) has a pair, and this to the second pin reed (2311) with eight or the morphosis of V-shaped on the second described pin transition plate (23), wherein: first, second pin reed (2211,2311) forms the staggered position relationship of cross each other; A pair cap rostellum (47) is configured with towards the side of described housing (1) and corresponding to the position of described positive temperature coefficient thermistor chamber (12) at described cap (4), this is identical with described a pair diapire rostellum (121) and correspond to the top of a pair diapire rostellum (121) to the shape of cross section of cap rostellum (47), and described positive temperature coefficient thermistor (21) upper support is on a pair cap rostellum (47).

3. energy-saving type integral single phase AC electric motor protective device according to claim 1, it is characterized in that being configured with the circular stack circle (14) that is raised in the surface of shell bottom wall in the shell bottom wall of described housing (1) and back to the side of described housing chamber (11), and offer one first corresponding to the position in this circular stack circle (14), second jack (15a, 15b) He one the 3rd jack (15c), first jack (15a) is corresponding with the first described pin chamber (111) and by this first jack (15a), the first pin chamber (111) is communicated with the external world, second jack (15b) is corresponding with the second described pin chamber (112) and by this second jack (15b), the second pin chamber (112) is communicated with the external world, the described load motor protector (3) be arranged in described load motor protector chamber (13) is matched with the 3rd described jack (15c), post (131) is limited around the circumferencial direction of protector accent to be configured with the surface being raised in protector accent one group of cap with space state in the position of the protector accent of described load motor protector chamber (13), and it is upper and offer quantity and cap in the position corresponding to one group of cap and limit post (131) and limit one group of equal cap limiting hole (41) of the quantity of post (131) at described cap (4), this group cap limiting hole (41) and one group of cap limit post (131) and match, described grounding pin (5), N pin (6) and L pin (7) are arranged on described housing (4) to insert embedding mode, wherein: in the housing chamber (11) of described housing (1) and the position enclosure in left side corresponding to described load motor protector chamber (13) have one with the extraneous protector pin chamber (113) communicated, the 3rd described jack (15c) is corresponding with protector pin chamber (113) and by the 3rd jack (15c), load motor protector chamber (13) is communicated with the external world.

4. energy-saving type integral single phase AC electric motor protective device according to claim 1, it is characterized in that on described housing (1) and on rear side of being positioned at, the position of right-hand member is configured with a housing plug base (16), this housing plug base (16) offers housing inserted slot (161), is embedded with a housing reed (1611) upper the inserting of housing inserted slot (161), on the wall body of right chamber wall side, a pair transition plate supporting base (123) of the first pin transition plate (221) for supporting described first pin (22) is configured with at the left chamber wall of described positive temperature coefficient thermistor chamber (12), at this to transition plate supporting base (123) being respectively configured with transition plate supporting step (1231), first pin transition plate (221) is shelved on transition plate supporting step (1231), and one first pin plug socket (222) is configured with in the upper end of the first pin (22), a pin lead-out tablet (232) is extended with in the upper end of described the second pin (23).

5. energy-saving type integral single phase AC electric motor protective device according to claim 3, it is characterized in that at described cap (4) upper and be configured with one first pin being raised in the surface of cap (4) back to the side of described housing chamber (11) and insert embedding seat (42) and one second pin inserts embedding seat (43), first pin inserts the left end that embedding seat (42) is positioned at cap (4), and the second pin inserts the right-hand member that embedding seat (43) is positioned at cap (4), insert on embedding seat (42) at the first pin and be configured with grounding pin caulking groove (421) and N pin caulking groove (422), and insert on embedding seat (43) at the second pin and be configured with L pin caulking groove (431), described grounding pin (5) and grounding pin caulking groove (421) are inserted scarf and are closed, described N pin (6) and N pin caulking groove (422) are inserted scarf and are closed, described L pin (7) and L pin caulking groove (431) are inserted scarf and are closed.

6. energy-saving type integral single phase AC electric motor protective device according to claim 5, it is characterized in that inserting embedding seat (42) at described first pin upper and be extended with a pin electric insulation demarcation strip (423) for grounding pin (5) and N pin (6) being intercepted in the side of inserting embedding seat (43) back to described second pin with the state of inserting embedding seat (42) perpendicular to the first pin, described grounding pin caulking groove (421) and the degree of depth of N pin caulking groove (422) identical with the height that the first pin inserts embedding seat (42), it is identical that the second described pin height of inserting embedding seat (43) and the first pin insert embedding seat (42), and the degree of depth of described L pin caulking groove (431) is identical with the height that the second pin inserts embedding seat (43).

7. energy-saving type integral single phase AC electric motor protective device according to claim 3, it is characterized in that described load motor protector (3) comprises pedestal (31), holder (32), bimetal leaf (33), heating wire (34), first, second protector pin (35, 36), moving contact reed (37) and push rod (38), pedestal (31) is configured with a pedestal chamber (311), and this pedestal (31) with its pedestal chamber (311) towards under state be contained in described load motor protector chamber (13), it is configured with a tip-lever support (3111) in the middle position of pedestal chamber (311), a push rod resigning hole (31111) communicated with the external world it is configured with in the middle position of the short transverse of tip-lever support (3111), and it is configured with a bimetal leaf mount (3112) at the position of the accent of pedestal chamber (311) around the circumferencial direction of pedestal chamber (311), holder (32) is configured with a pedestal mating cavity (321) towards the side of pedestal (31), by this pedestal mating cavity (321), holder (32) is nested with on pedestal (31), a push-rod hole (327) is offered in the middle position of holder (32), this push-rod hole (327) is corresponding with described push rod resigning hole (31111), above and pin reed mating groove (322) it is being configured with back to the side of pedestal mating cavity (321) at holder (32), one moving contact reed mating groove (323), one protector pin holes (324), one pin reed locating flange (325) and moving contact reed locating flange (326), bimetal leaf (33) is shelved on described bimetal leaf mount (3112), and this bimetal leaf (33) contacts back to the edge of the side of heating wire (34) with the bimetal leaf support ring (31121) being arranged in bimetal leaf mount (3112), heating wire (34) is corresponding to the top of bimetal leaf (33), and it is arranged in described pedestal chamber (311) when contacting with bimetal leaf (33), it is configured with a heating wire first in one end of this heating wire (34) and draws pin (341), this heating wire first draw pin (341) successively by way of described pedestal (31) and described holder (32) afterwards lower electrical with described second protector pin (36) be connected, and the other end of heating wire (34) is configured with a heating wire second draws pin (342), this heating wire second is drawn pin (342) and is being electrically connected with described moving contact reed (37) afterwards by way of pedestal (31) and holder (32) successively equally, first protector pin (35) leans out the sidepiece of holder (32) and is inserted in described protector pin chamber (113), a stationary contact reed (351) it is extended with on the top of this first protector pin (35), this stationary contact reed (351) matches with described pin reed mating groove (322),In one end of this stationary contact reed (351) and offering stationary contact reed locating hole (3511) corresponding to the position of described pin reed locating flange (325), this stationary contact reed locating hole (3511) is nested with on pin reed locating flange (325), at the other end of static contact reed (351) and be fixed with a stationary contact (3512) towards the side of moving contact reed (37), in the protector pin holes (324) described in the insertion of bottom of the second protector pin (36), moving contact reed (37) matches with described moving contact reed mating groove (323) in the position of the top corresponding to described stationary contact reed (351), in one end of this moving contact reed (37) and offering a moving contact spring leaf hole (371) corresponding to the position of described moving contact reed locating flange (326), this moving contact spring leaf hole (371) is nested with on moving contact reed locating flange (326), at the middle part of moving contact reed (37) and be configured with push rod pushing tow actuation lug (372) corresponding to the position of described push-rod hole (327), the protrusion direction of this push rod actuation lug (372) is towards described push rod (38), the other end of moving contact reed (37) is configured to free end and is fixed with a movable contact (373) in the position corresponding to described stationary contact (3512), the lower end of push rod (38) is bearing in the middle position of bimetal leaf (33), and matching with push rod pushing tow actuation lug (372) in the position of the lower section corresponding to described push rod pushing tow actuation lug (372) successively in the upper end of push rod (38) after described push rod resigning hole (31111) and push-rod hole (327), wherein: described stationary contact reed (351) towards upper side and described moving contact reed (37) towards under side limit by described cap (4), and the top of described second protector pin (36) is electrically connected with described L pin (7) afterwards leaning out the protector pin holes (44) being formed on cap (4).

8. energy-saving type integral single phase AC electric motor protective device according to claim 7, it is characterized in that offering a heating wire first on the roof of described pedestal (31) and draw pin transitional pore (314) and pin transitional pore (315) drawn by a heating wire second, and on described holder (32), offer a heating wire first draw pin fairlead (328a) and pin fairlead (328b) drawn by a heating wire second, heating wire first draws pin transitional pore (314) and heating wire first, and to draw pin fairlead (328a) corresponding, and heating wire second draws pin transitional pore (315) and heating wire second, and to draw pin fairlead (328b) corresponding, the heating wire first of described heating wire (34) is drawn pin (341) and is drawn at communication channel routed over electrical heated filament first successively and to be insinuated into after pin transitional pore (314) draws pin fairlead (328a) with heating wire first in described protector pin holes (324) and to be connected with the lower electrical of described second protector pin (36), and the described heating wire second of heating wire (34) is drawn pin (342) and is insinuated into described moving contact reed mating groove (323) and is electrically connected with described moving contact reed (37) after communication channel routed over electrical heated filament second successively draws pin transitional pore (315) and pin fairlead (328b) drawn by heating wire second.

9. energy-saving type integral single phase AC electric motor protective device according to claim 7, it is characterized in that on the roof of described pedestal (31) and in the position of the both sides corresponding to described push rod resigning hole (31111), be respectively configured with the support lug being depressed in top wall surface coordinates pit (316), and holder support lug (3211) is configured with on the chamber roof of described pedestal mating cavity (321) and in the position corresponding to support lug cooperation pit (316), this holder support lug (3211) and support lug coordinate pit (316) to match.

10. energy-saving type integral single phase AC electric motor protective device according to claim 7, it is characterized in that described L pin (7) is extended with a protector pin electric connection part (71), top and this protector pin electric connection part (71) of described second protector pin (36) are electrically connected; Go up at described cap (4) and be configured with a fixed contact reed guide vane end stop (45a) and a moving contact reed positive stop lug boss (45b) in the position corresponding to described load motor protector chamber (13), spacing to fixed contact reed (351) by the contact of fixed contact reed guide vane end stop (45a) and described fixed contact reed (351), spacing to moving contact reed (37) by moving contact reed positive stop lug boss (45b) and the contact of described moving contact reed (37); Described moving contact spring leaf hole (371) is splined hole.