CN208797562U

CN208797562U - Electric motor starting protector with double protection functions

Info

Publication number: CN208797562U
Application number: CN201821446297.4U
Authority: CN
Inventors: 赵云文
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-05
Filing date: 2018-09-05
Publication date: 2019-04-26
Anticipated expiration: 2028-09-05

Abstract

A kind of electric motor starting protector with double protection functions, belongs to electric motor starting protector technical field.Including including a shell and a cap, shell, which is constituted, a motor protecter accommodating chamber and a motor starter accommodating chamber, and cap is matched with shell；One motor protecter, the motor protecter are arranged in the motor protecter accommodating chamber；One motor starter; the motor starter is arranged in the motor starter accommodating chamber; feature: the position of the motor protecter accommodating chamber anterior cavity wall in the shell and corresponding to motor protecter accommodating chamber, which is constituted, the additional protector accommodating chamber partition wall of a motor; space between the additional protector accommodating chamber partition wall of the motor and the shell front side wall of shell is configured to the additional protector accommodating chamber of motor; the additional protector of a motor, the additional protector of the motor and the motor protecter electrical contact are provided in the additional protector accommodating chamber of the motor.Adequately protect motor and improve start safety.

Description

Electric motor starting protector with double protection functions

Technical field

The utility model belongs to electric motor starting protector technical field, and in particular to a kind of electricity with double protection functions Machine start protection device.

Background technique

By taking common refrigeration compressor motor as an example, since it is little power single phase alternating current generator, thus need at the start By starter auxiliary starter, and protection need to be implemented by protector after compressor enters normal operating condition and use guarantee refrigeration Compressor disconnects power supply when there is overload condition in the process of running, avoids refrigeration compressor because of excessively thermally-induced damage.

In disclosed Chinese patent literature, it is no lack of and is seen in the technology about refrigeration compressor motor start protection device Hold, such as CN2606490Y(electric motor starting, protector), CN2606491Y(Integral motor starting protector), The improved Integral motor starting protector of CN102386815B(structure), CN100581043C(energy-saving type integral blow-up Galvanic electricity machine rise protector), the energy-saving single phase AC electric motor starting protector of the improved idle of CN104734428A(structure), CN104734429A(energy-saving type integral single phase AC electric motor protector), the energy-saving load motor of CN104734569A( Start protection device), the energy-saving single phase AC electric motor starting protector of CN104734570A(idle) CN104734571A(energy conservation Type integral single phase AC electric motor starting protector), etc..

It is not limited to patent exemplified above and is able to satisfy above-mentioned started by starter to motor assist and by protecting Device disconnects power supply and plays the superheat protecting function to motor, but after mounting in actual use, often exist because of electricity Machine starter abnormal heating cause protector fail to protection circuit situation.In particular, since protector failure is difficult to very To can not be found by user such as refrigerator user at all, consequently only that can not work i.e. in load motor, refrigeration compressor is not It is just fully realized for various reasons when work, but late.Because once such case occurs unquestionably trouble can be caused to user, Such as replacement motor and related accessories (such as electric motor starting protector) can increase financial burden to user, for another example influence user To the normal use of refrigerating plant (refrigerator) before the motor of replacement damage.It is necessary to make every effort to avoid the hair of aforementioned circumstances in view of this Raw, technical solution described below generates in this background.

Summary of the invention

The task of the utility model is that providing one kind helps to cut off with remaining valid when motor protecter fails It is used and is filled by overloading caused faulty circuit and circuit can be made to be in open-circuit condition always after faulty circuit is cut off Code insurance protects motor and improves the electric motor starting protector with double protection functions of the safety started.

What the task of the utility model was performed by, a kind of electric motor starting protector with double protection functions, Including including a shell and a cap, shell, which is constituted, a motor protecter accommodating chamber and a motor starter accommodating chamber, cap It is matched with shell；One motor protecter, the motor protecter are arranged in the motor protecter accommodating chamber；One electric motor starting Device, the motor starter are arranged in the motor starter accommodating chamber, are characterized in that in the shell and right Should constitute in the position of the motor protecter accommodating chamber anterior cavity wall of motor protecter accommodating chamber has the additional protector of a motor to accommodate Chamber partition wall, the space between the additional protector accommodating chamber partition wall of the motor and the shell front side wall of shell are configured to motor and chase after Add protector accommodating chamber, the additional protector of a motor is provided in the additional protector accommodating chamber of the motor, the motor is additional to be protected Protect device and the motor protecter electrical contact.

In a specific embodiment of the utility model, the motor protecter accommodating chamber is located at the shell Left end rear, the motor starter accommodating chamber are located at the right end of shell, and the additional protector accommodating chamber of the motor is located at In front of the left end of shell.

In another specific embodiment of the utility model, on the additional protector accommodating chamber partition wall of the motor Composition has a motor protecter contact foot jack and the fixed inserted sheet location hole of the additional protector pin of a motor, motor protecter touching Piece foot jack is located at the left end of the additional protector accommodating chamber partition wall of motor, and the fixed inserted sheet of the additional protector pin of motor is fixed Position hole is located at the right end of the additional protector accommodating chamber partition wall of motor, and corresponding with motor protecter contact foot jack, The additional protector pin of a motor is offered on the cap and in the position for corresponding to the additional protector accommodating chamber of motor Hole, the additional protector pin holes of the motor penetrate through to lower surface from the upper surface of cap and add protector accommodating chamber with motor It communicates, the additional protector of the motor in the additional protector accommodating chamber of the motor and the additional protection of the motor is set The fixed inserted sheet location hole of device pin and the additional protector pin holes of the motor are inserted scarf and are closed, and are arranged in the electric motor protecting The motor protecter in device accommodating chamber cross the motor protecter accommodating chamber anterior cavity wall top and the electric motor protecting Device contact foot jack inserting.

In another specific embodiment of the utility model, the additional protector of the motor includes a faulty circuit It adds and cut-offs mechanism and the additional protector pin of a motor, faulty circuit is additional to cut-off mechanism setting in the additional protection of the motor In device accommodating chamber and with the additional protector pin of motor and with the electricity that is arranged in the motor protecter accommodating chamber Machine protector electrical contact, the top of the additional protector pin of motor and the additional protector pin holes of the motor are inserted scarf and are closed And the top that the additional protector pin holes of motor are stretched over the cap is leant out, in the lower right of the additional protector pin of motor Side has extended downwardly the fixed inserted sheet of the additional protector pin of a motor, and the additional protector pin of the motor is fixed described in inserted sheet insertion The fixed inserted sheet positioning hole of the additional protector pin of motor；It is opened up on the top of the motor protecter accommodating chamber anterior cavity wall There is a contact foot caulking groove, the motor protecter crosses contact foot caulking groove and the motor protecter contact foot jack is inserted Match.

In another specific embodiment of the utility model, the additional mechanism of cut-offfing of the faulty circuit includes a box The additional bimetal leaf of body, a box cover, a screw shaft and one, box body composition have an additional bimetal leaf accommodating chamber, box cover and box body Scarf and the box cover are inserted in company with box body to be embedded in the addition protector accommodating chamber, offers one in the center of box cover Screw shaft connecting screw hole is fixed with a box cover contact pin contacts on the left of box cover, and a motor is fixed on the right side of box cover Additional protector pin contacts, box cover contact pin contacts and the electric motor starting being arranged in the motor protecter accommodating chamber Device electrical contact, and the additional protector pin contacts of motor and the fixed inserted sheet electrical contact of the additional protector pin of the motor, The upper end of screw shaft is connect in the position for corresponding to screw shaft connecting screw hole with box cover, and the lower end of screw shaft is located at additional double gold Belong in piece accommodating chamber, additional bimetal leaf is located in additional bimetal leaf accommodating chamber, and the centre bit of the addition bimetal leaf It sets and is nested in the lower end of screw shaft, the left contact base of a bimetal leaf is extended on the left of the addition bimetal leaf, in this pair gold Belong on the left contact base of piece and is fixed with the left contact of a bimetal leaf, this pair in the position for corresponding to the box cover contact pin contacts The left contact of sheet metal and box cover contact pin contacts are adding bimetallic towards one end electrical contact of additional bimetal leaf accommodating chamber It is extended with the right contact base of a bimetal leaf on the right side of piece, is chased after on the right contact base of the bimetal leaf and corresponding to the motor The position of protector pin contacts is added to be fixed with the right contact of a bimetal leaf, the right contact of the bimetal leaf and the additional protector of motor One end electrical contact of the pin contacts towards additional bimetal leaf accommodating chamber, wherein the screw shaft lower end and right The position of the lower section of additional bimetal leaf described in Ying Yu is fixed with a bimetal leaf free gap and limits circle, and the box cover is by exhausted Edge material is made.

In the utility model there are one in specific embodiment, the addition bimetal leaf is formed with a basin shape Chamber, the box-like chamber is towards the box cover；Protector is added towards the motor in the additional protector pin contacts of the motor Silver contact is combined on the end face of one end of the fixed inserted sheet of pin.

In the utility model more and in a specific embodiment, in front of the right side of the motor protecter accommodating chamber Every being equipped with a static contact pin chamber, the motor protecter includes pedestal, fixing seat, bimetal leaf, heating wire, mandril, double Sheet metal support ring, static contact, movable contact spring and inserted sheet, pedestal are base of ceramic, and pedestal composition has a pedestal chamber, in the pedestal There is a bimetal leaf mount at the accent position of chamber around the circumferencial direction composition of pedestal chamber, and the pedestal is with its pedestal chamber State of the accent under is contained in the motor protecter accommodating chamber, is offered in the central location of the susceptor top wall of pedestal One jogger hole, and the first leading foot of heating wire transitional pore, second leading foot of heating wire are also provided on susceptor top wall Transitional pore and a pair of of fixing seat locating flange mating cavity, heating wire the first leading foot transitional pore and heating wire the second leading foot mistake The left side that hole is located at jogger hole is crossed, and a pair of of fixing seat locating flange mating cavity corresponds respectively to the front and back side of jogger hole, it is fixed Side of the seat under, which is constituted, a fixing seat chamber, fixing seat roof towards fixing seat chamber side and corresponding to one Constituting to the position of fixing seat locating flange mating cavity has a pair of of fixing seat locating flange, in the central location of the roof of fixing seat Mandril relief hole is offered, the mandril relief hole is corresponding with the jogger hole, is also provided with one on the roof of fixing seat Movable contact spring chamber, an inserted sheet caulking groove, heating wire the first leading foot guide hole and heating wire the second leading foot guide hole, movable contact spring Chamber is located at the middle position of the roof of fixing seat, and inserted sheet caulking groove, heating wire the first leading foot guide hole and heating wire second draw Foot guide hole is located at the left side of the roof of fixing seat out, the pedestal insert embedded in the fixing seat it is intracavitary and described one Fixing seat locating flange is matched with a pair of of fixing seat locating flange mating cavity, bimetal leaf is shelved on bimetal leaf In mount, bimetal leaf support ring is that bimetal leaf is similarly disposed at double gold back to the position of the side of pedestal chamber corresponding Belong in piece mount, the surrounding edge locator qualification by the bimetal leaf support ring to bimetal leaf, heating wire is arranged double For sheet metal towards the side of pedestal chamber, constituting in one end of the heating wire has first leading foot of heating wire, and the other end is constituted Have second leading foot of heating wire, the first leading foot of heating wire sequentially pass through heating wire the first leading foot transitional pore and It is electrically connected after heating wire the first leading foot guide hole with the inserted sheet, the second leading foot of heating wire is sequentially passing through the electric heating It is electrically connected after the second leading foot transitional pore of silk and heating wire the second leading foot guide hole with the movable contact spring, mandril is ceramics top Bar, the lower end of the mandril are supported on bimetal leaf towards the side of pedestal chamber, and the upper end of mandril sequentially pass through jogger hole and It is contacted after mandril relief hole with the movable contact spring, is fixed on fixing seat when the middle part of static contact is with the fixing seat injection molding On, and having a static contact static contact towards upper side composition in one end of the static contact, other end composition has a static contact Pin, static contact static contact corresponds to the front of the movable contact spring chamber, and static contact pin and the static contact pin chamber are inserted Match, movable contact spring is arranged in that the movable contact spring is intracavitary, and is fixed with a dynamic touching in side of the front end of the movable contact spring under Piece moving contact, side of the middle part under, which is constituted, mandril pushing tow flange, and the rear end of movable contact spring and the shape perpendicular to movable contact spring State composition has a movable contact spring to extend piece, and constituting in the left end of movable contact spring extension piece has a heating wire leading foot to be fixedly connected with ear, And movable contact spring extension piece fixation hole is offered in the right end of movable contact spring extension piece, the movable contact spring moving contact corresponds to described Static contact static contact top, the mandril pushing tow flange is corresponding with the upper end end face of the mandril, the heating wire Second leading foot is fixedly connected with the fixed company of ear after drawing the second leading foot of heating wire guide hole with the heating wire leading foot It connects, on the fixing seat and constituting in the position for corresponding to movable contact spring extension piece fixation hole has extension piece fixation convex Platform by movable contact spring extension piece fixation hole and extends the scarf of piece fixing lug boss and moves movable contact spring extension piece together with described Contact is arranged in fixing seat, and inserted sheet is inserted in the inserted sheet caulking groove, and the front end of the inserted sheet is corresponding to the contact The motor protecter accommodating chamber anterior cavity wall is crossed and folding exhibition downwards in the position of foot caulking groove and constituting has a contact foot, the contact Foot is inserted into the motor protecter contact foot jack, and first leading foot of heating wire is drawn the heating wire first and drawn It is fixedly connected after foot guide hole with the inserted sheet, the front side electrical contact of the box cover contact pin contacts and the contact foot；? The surface of the opposite side of the left contact of bimetal leaf and the box cover contact pin contacts is respectively combined with silver contact；Described double The surface of the opposite side of the right contact of sheet metal and the additional protector pin contacts of the motor is respectively combined with silver contact；In box cover One side surface of contact pin contacts towards the contact foot is combined with silver contact.

In a specific embodiment in turn of the utility model, in the motor starter accommodating chamber and it is located at The left end of motor starter accommodating chamber pin receptacle chamber, the starting after equipped with pin receptacle chamber before a starter and a starter Pin receptacle chamber correspondence each other after pin receptacle chamber and starter before device, the cap right end and corresponding to The position of pin receptacle chamber offers pin insertion hole before a starter of the thickness direction of a perforation cap before starter, and right It should pin after a pair of of starter of the position of pin receptacle chamber offers a same perforation cap after starter thickness direction Jack, be arranged in pin receptacle chamber before the motor starter in the motor starter accommodating chamber and the starter, Pin insertion hole inserting after pin insertion hole and a pair of of starter before pin receptacle chamber, starter after starter.

The utility model again more and in a specific embodiment, in the bottom structure of the motor starter accommodating chamber At the positive temperature coefficient thermistor supporting boss for having a pair of bottom surface for being raised in motor starter accommodating chamber, this is to positive temperature Left and right corresponds to coefficient thermal resistor supporting boss each other, and the motor starter includes before starter after inserted sheet, starter Inserted sheet, single reed and positive temperature coefficient thermistor, positive temperature coefficient thermistor is arranged with longitudinal state to be risen in motor In dynamic device accommodating chamber and be supported on a pair of of positive temperature coefficient thermistor supporting boss, before starter inserted sheet with And inserted sheet corresponds respectively to the front and back side of positive temperature coefficient thermistor after starter, wherein the right side of inserted sheet before starter Contact chip before end is fixed with one towards the side of positive temperature coefficient thermistor, the preceding contact chip and positive temperature coefficient temperature-sensitive electricity The leading flank electrical contact for hindering device, the left upper part of inserted sheet has upwardly extended pin before a starter before starter, and is rising The left end lower part of inserted sheet and pin is inserted before the position of pin has extended downwardly a starter before corresponding to starter before dynamic device Seat pin insertion hole and is stretched over the top of the cap before the pin insertion starter before starter, inserts before starter Pin receptacle is intracavitary before the foot socket insertion starter, and inserted sheet is towards positive temperature coefficient thermistor after starter Contact chip after side is fixed with one, the trailing flank electrical contact of the rear contact chip and positive temperature coefficient thermistor, starts The upper edge of inserted sheet is extended with pin after a pair of of starter after device, inserts after a pair of of starter described to pin insertion after starter Foot jack is interior and is stretched over the top of cap, and position setting of single reed on the right side for corresponding to the rear contact chip starts After device between inserted sheet and positive temperature coefficient thermistor, it is extended with a single reed above the list reed and plants foot, in institute State on cap and constituting in the position for corresponding to monolithic and planting foot have a single reed to plant foot locating slot, single reed plant foot with Single reed plants the inserting of foot locating slot.

In the utility model again and then in a specific embodiment, constituting on the left side outer wall of the shell has one The left card base seat of shell, constituting on the front side outer wall of shell has card base seat before a shell, and constitutes on the rear side outer wall of shell Have card base seat after a shell, extended downwardly the left card base of a cap on the left of the cap, the position of the left card base of the cap with The left card base seat of shell is corresponding and with the left card base seat scarf of shell, the front side in cap and the card base seat before corresponding to shell Position extended downwardly card base before a cap, card base seat scarf before card base and shell before the cap, cap rear side and The position of card base seat has extended downwardly card base after a cap after corresponding to shell, and card base and card base seat after shell are embedding after the cap Match；There is shell positioning column on shell and in the circumferentially-spaced composition for corresponding to the upper edge of the motor protecter accommodating chamber, The cap left end rear and correspond to shell positioning column position open up the quantity shell equal with shell positioning column Lid positioning post holes, cap positioning post holes is matched with shell positioning column, on cap and additional corresponding to the motor The position of protector, which is constituted, a briquetting, and constituting on the briquetting has the additional protector limit chamber of a motor, and the motor is additional to be protected Shield device limit chamber is contacted with the additional protector of motor.

Technical solution provided by the utility model works as motor protecter and fails due to being additionally arranged the additional protector of motor After the faulty circuit caused by overloading can be cut off by the additional protector of motor with remaining valid and use motor is played it is due Protective effect, and after protector disengagement failure circuit additional by motor, circuit is in open-circuit condition always, to be able to sufficiently It protects motor and improves the safety started.

Detailed description of the invention

Fig. 1 is the embodiments of the present invention structure chart.

Fig. 2 is the detailed structure view of the additional protector of motor shown in FIG. 1.

Fig. 3 is the cross-sectional view of Fig. 2.

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

Fig. 5 is the bottom view of cap shown in FIG. 1.

Specific embodiment

In order to which the technical essence of the utility model and beneficial effect is more clearly understood, applicant is below with reality The mode for applying example elaborates, but is not limitation to the utility model, any foundation to the description of embodiment The made only formal but not substantive equivalent transformation of the utility model design is regarded as the utility model Technical solution scope.

The concept of all directionality for being related to upper, lower, left, right, front and rear or directionality is all in the following description By taking the figure location state just described as an example, thus it cannot be understood as to technical solution provided by the utility model Be particularly limited to.

Referring to Figure 1, a shell 1 and a cap 2 moulding by plastics are shown, the composition of shell 1 has a motor Protector accommodating chamber 11 and a motor starter accommodating chamber 12, cap 2 are matched with shell 1；A motor protecter 3 is shown, The motor protecter 3 is arranged in aforementioned motor protector accommodating chamber 11；A motor starter 4 is shown, the motor starter 4 It is arranged in motor starter accommodating chamber 12 above-mentioned.

Technical essential as technical solution provided by the utility model: in shell 1 above-mentioned and corresponding to electricity The position of the motor protecter accommodating chamber anterior cavity wall 111 of machine protector accommodating chamber 11, which is constituted, the additional protector accommodating chamber of a motor Partition wall 13, the space between the additional protector accommodating chamber partition wall 13 of the motor and the shell front side wall of shell 1 are configured to electricity Machine adds protector accommodating chamber 131, and the additional protector 5 of a motor is provided in the additional protector accommodating chamber 13 of the motor, should The additional protector 5 of motor and 3 electrical contact of motor protecter above-mentioned.

As shown in Figure 1, motor protecter accommodating chamber 11 above-mentioned is located at the left end rear (left back) of aforementioned shell 1, preceding The motor starter accommodating chamber 12 stated is located at the right end of shell 1, and the additional protector accommodating chamber 131 of motor above-mentioned is located at shell 1 Left end in front of (left front).

Please continue to refer to Fig. 1, constituting on the additional protector accommodating chamber partition wall 13 of aforementioned motor has motor protecter touching Piece foot jack 132 and the fixed inserted sheet location hole 133 of the additional protector pin of a motor, jack 132, motor protecter contact foot In the left end of the additional protector accommodating chamber partition wall 13 of motor, and the additional protector pin of motor fixes inserted sheet location hole 133 The right end of protector accommodating chamber partition wall 13 is added in motor, and corresponding with motor protecter contact foot jack 132, preceding On the cap 2 stated and the additional protector of a motor is offered in the position for corresponding to the additional protector accommodating chamber 131 of motor to insert Foot hole 21, the upper surface of the motor additional protector pin holes 21 from cap 2 penetrate through to lower surface and add protection with motor Device accommodating chamber 131 communicates, and the additional protector 5 of aforementioned motor in the additional protector accommodating chamber 131 of aforementioned motor is arranged in before The additional fixed inserted sheet location hole 133 of protector pin of the motor stated and the additional protector pin holes 21 of motor above-mentioned insert scarf It closes, before the aforementioned motor protector 3 being arranged in aforementioned motor protector accommodating chamber 11 crosses aforementioned motor protector accommodating chamber The top of cavity wall 111 and 132 inserting of aforementioned motor protector contact foot jack.

The additional protector 5 of motor above-mentioned, which includes that a faulty circuit is additional, cut-offs mechanism 51 and the additional protector of a motor is inserted Foot 52, the additional mechanism 51 of cut-offfing of faulty circuit are arranged in the additional protector accommodating chamber 131 of aforementioned motor and add with motor Protector pin 52 and with 3 electrical contact of aforementioned motor protector that is arranged in aforementioned motor protector accommodating chamber 11, electricity The top of the additional protector pin 52 of machine, which with motor above-mentioned addition protector pin holes 21 inserts scarf and merges and lean out motor, to be chased after Protector pin holes 21 are added to be stretched over the top of aforementioned cap 2, it is laterally downward in the lower right of the additional protector pin 53 of motor Stretching has the fixed inserted sheet 521 of the additional protector pin of a motor, and the fixed inserted sheet 521 of the additional protector pin of the motor is inserted into above-mentioned In the fixed inserted sheet location hole 133 of the additional protector pin of motor；On the top of motor protecter accommodating chamber anterior cavity wall 111 above-mentioned A contact foot caulking groove 1111 is offered, contact foot caulking groove 1111 is crossed and (can also be claimed " by way of ") to motor protecter 3 above-mentioned with before 132 inserting of motor protecter contact foot jack stated.

Fig. 2 and Fig. 3 are referred to, the additional mechanism 51 of cut-offfing of faulty circuit above-mentioned includes a box body 511, a box cover 512, one Screw shaft 513 and an additional bimetal leaf 514, box body 511 are preferably made of aluminium alloy, and the box body 511 composition has one to add Bimetal leaf accommodating chamber 5111, box cover 512 is with 511 scarf of box body and the box cover 512 is inserted in company with box body 511 and chased after embedded in above-mentioned Add in protector accommodating chamber 131, when inserting embedding, box body 511 is deflected together with box cover 512 from Fig. 2 and location status shown in Fig. 3 90 ° and in state shown in FIG. 1 insert be embedded into additional protector accommodating chamber 131 shown in FIG. 1, in the center of box cover 512 A screw shaft connecting screw hole 5121 is offered, is fixed with a box cover contact pin contacts 5122 in the left side of box cover 512, and in box cover 512 right side is fixed with the additional protector pin contacts 5123 of a motor, and box cover contact pin contacts 5122 and setting are in aforementioned electricity 3 electrical contact of aforementioned motor starter in machine protector accommodating chamber 11, and the additional protector pin contacts 5123 of motor are with before Fixed 521 electrical contact of inserted sheet of the additional protector pin of motor is stated, the upper end of screw shaft 513, which is constituted, screw shaft external screw thread 5132, which is threadedly coupled in the position for corresponding to screw shaft connecting screw hole 5121 with box cover 512, and spiral shell The lower end of bar axis 513 is located in additional bimetal leaf accommodating chamber 5111, and additional bimetal leaf 514 is located at additional bimetal leaf and accommodates In chamber 5111, and the center of the addition bimetal leaf 514 is nested in the lower end of screw shaft 513, in the addition bimetallic The left side of piece 514 is extended with the left contact base 5141 of a bimetal leaf, on the left contact base 5141 of the bimetal leaf and in correspondence The left contact 51411 of a bimetal leaf, the left contact of the bimetal leaf are fixed in the position of aforementioned box cover contact pin contacts 5122 51411 with box cover contact pin contacts 5122 towards one end electrical contact of additional bimetal leaf accommodating chamber 5111, in additional double gold The right side for belonging to piece 514 is extended with the right contact base 5142 of a bimetal leaf, on the right contact base 5142 of the bimetal leaf and right The right contact 51421 of a bimetal leaf, the bimetallic should be fixed in the position of the additional protector pin contacts 5123 of aforementioned motor The right contact 51421 of piece and one end of motor additional protector pin contacts 5123 towards additional bimetal leaf accommodating chamber 5111 are electrical Contact, wherein aforementioned screw shaft 513 lower end and in the position for the lower section for corresponding to aforementioned additional bimetal leaf 514 it is solid There is a bimetal leaf free gap to limit circle 5131, box cover 512 above-mentioned is made of insulating material surely.

As a preferred option, constituting in the upper end of aforementioned screw shaft 513 has a square toes 5133, with hardware tool such as spanner Adjust clockwise or counterclockwise to the square toes 5133 can be such that screw shaft 513 is displaced upward or downward, thus changeable (adjustable It is whole) the movable pressure of additional bimetal leaf 514, because the center of additional bimetal leaf 514 is by opening up addition thereon Bimetal leaf centre bore is nested in the lower end of screw shaft 513.

As shown in Figure 3, additional bimetal leaf 514 above-mentioned is formed with a basin shape chamber 5143, and the box-like chamber 5143 is before The box cover 512 stated；In the present embodiment, it is protected in the additional protector pin contacts 5123 of aforementioned motor towards aforementioned motor is additional Silver contact is combined with by silver-plated mode on the end face of one end of the fixed inserted sheet 521 of device pin.

Refer to Fig. 4, in front of the right side of aforementioned motor protector accommodating chamber 11 every be equipped with a static contact pin chamber 112, Motor protecter 3 above-mentioned includes pedestal 31, fixing seat 32, bimetal leaf 33, heating wire 34, mandril 35, bimetal leaf bearing Circle 36, static contact 37, movable contact spring 38 and inserted sheet 39, pedestal 31 are base of ceramic, and the pedestal 31 composition has a pedestal chamber 311, There is a bimetal leaf mount 3111 at the accent position of the pedestal chamber 311 around the circumferencial direction composition of pedestal chamber 311, and should Pedestal 31 is contained in aforementioned motor protector accommodating chamber 11 with state of the accent of its pedestal chamber 311 under, in pedestal 31 The central location of susceptor top wall 312 offer a jogger hole 3121, and a heating wire is also provided on susceptor top wall 312 First leading foot transitional pore 3122, the second leading foot of heating wire transitional pore 3123 and a pair of of fixing seat locating flange mating cavity 3124, the first leading foot of heating wire transitional pore 3122 and the second leading foot of heating wire transitional pore 3123 are located at jogger hole 3121 Left side, and a pair of of fixing seat locating flange mating cavity 3124 corresponds respectively to the front and back side of jogger hole 3121,32 direction of fixing seat Under side constitute have a fixing seat chamber 321, fixing seat 32 roof towards fixing seat chamber 321 side and corresponding to The position of a pair of of fixing seat locating flange mating cavity 3124, which is constituted, a pair of of fixing seat locating flange 3211, on the top of fixing seat 32 The central location of wall offers mandril relief hole 322, and the mandril relief hole 322 is corresponding with jogger hole 3121 above-mentioned, solid A movable contact spring chamber 323, an inserted sheet caulking groove 324, the first leading foot of heating wire guide hole 325 are also provided on the roof of reservation 32 And the second leading foot of heating wire guide hole 326, movable contact spring chamber 323 are located at the middle position of the roof of fixing seat 32, inserted sheet is inserted Caulking groove 324, the first leading foot of heating wire guide hole 325 and the second leading foot of heating wire guide hole 326 are located at the roof of fixing seat 32 Left side, pedestal 31 above-mentioned is inserted in the fixing seat chamber 321 above-mentioned, and a pair of of fixing seat locating flange 3211 above-mentioned It is matched with a pair of of fixing seat locating flange mating cavity 3124 above-mentioned, bimetal leaf 33 is shelved on bimetal leaf mount 3111 On, to be that bimetal leaf 33 is similarly disposed at back to the position of the side of pedestal chamber 311 double corresponding for bimetal leaf support ring 36 In sheet metal mount 3111, surrounding edge locator qualification by the bimetal leaf support ring 36 to bimetal leaf 33, electric heating Bimetal leaf 33 is arranged in towards the side of pedestal chamber 311 in silk 34, and constituting in one end of the heating wire 34 has a heating wire first Leading foot 341, and other end composition has second leading foot of heating wire 342, heating wire the first leading foot 341 is before sequentially passing through Electrically connect after the first leading foot of the heating wire transitional pore 3122 and the first leading foot of heating wire guide hole 325 stated with aforementioned inserted sheet 39 It connects, the second leading foot of heating wire 342 is sequentially passing through the second leading foot of heating wire transitional pore 3123 and heating wire second above-mentioned It is electrically connected after leading foot guide hole 326 with movable contact spring 38 above-mentioned, mandril 35 is ceramic mandril, and the lower end of the mandril 35 is supported on Bimetal leaf 33 is towards the side of pedestal chamber 311, and the upper end of mandril 35 is sequentially passing through jogger hole 3121 and mandril relief hole It is contacted after 322 with aforementioned movable contact spring 38, is fixed on fixing seat 32 when the middle part of static contact 37 is with aforementioned 32 injection molding of fixing seat On, and constituted in one end of the static contact 37 towards upper side and have a static contact static contact 371, other end composition has one quiet Contact pin 372, static contact static contact 371 correspond to aforementioned movable contact spring chamber 323 front, and static contact pin 372 with it is aforementioned 112 inserting of static contact pin chamber, movable contact spring 38 is arranged in movable contact spring chamber 323 above-mentioned, and before the movable contact spring 38 The side under is held to be fixed with a movable contact spring moving contact 381, side of the middle part under, which is constituted, mandril pushing tow flange 382, And the rear end of movable contact spring 38 has a movable contact spring to extend piece 383 with the state composition perpendicular to movable contact spring 38, extends in the movable contact spring The left end of piece 383, which is constituted, has a heating wire leading foot to be fixedly connected with ear 3831, and the right end in movable contact spring extension piece 383 offers One movable contact spring extends piece fixation hole 3832, and movable contact spring moving contact 381 above-mentioned corresponds to the upper of static contact static contact 371 above-mentioned Side, mandril pushing tow flange 382 above-mentioned is corresponding with the upper end end face of aforementioned mandril 35, aforementioned the second leading foot of heating wire 342 Ear 3831 is fixedly connected with aforementioned heating wire leading foot after drawing aforementioned the second leading foot of heating wire guide hole 326 to be fixedly connected, In aforementioned fixing seat 32 and constituting in the position for corresponding to aforementioned movable contact spring extension piece fixation hole 3832 has an extension piece solid Determine boss 327, extends the scarf of piece fixation hole 3832 and extension piece fixing lug boss 327 by movable contact spring and expand aforementioned movable contact spring It opens up piece 383 to be arranged in fixing seat 32 together with aforementioned movable contact spring 38, inserted sheet 39 is inserted in inserted sheet caulking groove 324 above-mentioned, should Aforementioned motor protector accommodating chamber anterior cavity wall 111 is crossed in the position for corresponding to aforementioned contact foot caulking groove 1111 in the front end of inserted sheet 39 And folding is opened up downwards and constituting has a contact foot 391, which is inserted into aforementioned motor protector contact foot jack 132, The first leading foot of heating wire 341 above-mentioned connects after drawing aforementioned the first leading foot of heating wire guide hole 325 with the fixation of aforementioned inserted sheet 39 It connects, the front side electrical contact of box cover contact pin contacts 5122 and aforementioned contact foot 391 above-mentioned

In the present embodiment, in the opposite of the left contact 51411 of aforementioned bimetal leaf and aforementioned box cover contact pin contacts 5122 The surface of side is respectively combined with silver contact by silver-plated mode；It is additional in the right contact 51421 of aforementioned bimetal leaf and aforementioned motor The surface of the opposite side of protector pin contacts 5123 is respectively combined with silver contact by silver-plated mode；In box cover contact pin contacts 5122 are combined with silver contact by silver-plated mode towards a side surface of aforementioned contact foot 391.

Still see Fig. 1, in aforementioned motor starter accommodating chamber 12 and be located at motor starter accommodating chamber 12 left end every Equipped with pin receptacle chamber 122 after pin receptacle chamber 121 before a starter and a starter, pin receptacle chamber 121 before the starter And the correspondence each other of pin receptacle chamber 122 after starter, aforementioned cap 2 right end and inserted before corresponding to starter The position of foot socket cavity 121 offers pin insertion hole 22 before a starter of the thickness direction of a perforation cap 2, and is corresponding to The position of pin receptacle chamber 122 offers pin after a pair of of starter of the thickness direction of a same perforation cap 2 after starter Jack 23, pin is inserted before the aforementioned motor starter 4 in aforementioned motor starter accommodating chamber 12 and starter above-mentioned is arranged in Seat chamber 121, pin insertion hole 23 is inserted after pin insertion hole 22 and a pair of of starter before pin receptacle chamber 122, starter after starter Match.

Continue to see Fig. 1, constituting in the bottom of aforementioned motor starter accommodating chamber 12 has a pair to be raised in motor starter appearance Receive chamber 12 bottom surface positive temperature coefficient thermistor supporting boss 123, this to positive temperature coefficient thermistor support it is convex Left and right corresponds to platform 123 each other, and motor starter 4 above-mentioned includes inserted sheet 42, single reed 43 after inserted sheet 41, starter before starter With positive temperature coefficient thermistor 44, positive temperature coefficient thermistor 44 is arranged with longitudinal state to be accommodated in motor starter In chamber 12 and be supported on a pair of of positive temperature coefficient thermistor supporting boss 123 above-mentioned, before starter inserted sheet 41 with And inserted sheet 42 corresponds respectively to the front and back side of positive temperature coefficient thermistor 44 after starter, wherein the inserted sheet before starter Contact chip 411 before the side of 41 right end towards positive temperature coefficient thermistor 44 is fixed with one, the preceding contact chip 411 with just The leading flank electrical contact of temperature coefficient thermistor device 44, the left upper part of inserted sheet 41 has upwardly extended together before starter Pin 412 before dynamic device, and before starter the left end lower part of inserted sheet 41 and before corresponding to starter pin 412 position to Under be extended with pin receptacle 413 before a starter, before starter pin 412 be inserted into before starter above-mentioned pin insertion hole 22 and It is stretched over the top of aforementioned cap 2, pin receptacle 413 is inserted into before starter above-mentioned in pin receptacle chamber 121 before starter, Contact chip 421 after the side of inserted sheet 42 towards positive temperature coefficient thermistor 44 is fixed with one after starter, the rear contact chip 421 with the trailing flank electrical contact of positive temperature coefficient thermistor 44, the upper edge of inserted sheet 42 is extended with a pair after starter Pin 422 after starter, this is inserted into after a pair of of starter above-mentioned in pin insertion hole 23 and stretches to pin 422 after starter To the top of cap 2, inserted sheet 42 are arranged after starter in the position on the right side for corresponding to aforementioned rear contact chip 421 in single reed 43 Between positive temperature coefficient thermistor 44, a single reed is extended in the top of the list reed 43 and plants foot 431, preceding It states on cap 2 and constituting in the position for corresponding to monolithic plant foot 431 has a single reed to plant foot locating slot 27c, single reed It plants foot 431 and single reed plants the 27c inserting of foot locating slot.

Still see Fig. 1, constituting on the left side outer wall of aforementioned shell 1 has the left card base seat 15a of a shell, in the front side of shell 1 Constituting on outer wall has card base seat 15b before a shell, and constituting on the rear side outer wall of shell 1 has card base seat 15c after a shell, The left side of aforementioned cap 2 has extended downwardly the left card base 24a of a cap, the position of the left card base 24a of the cap and the left card base seat of shell 15a is corresponding and with the left card base seat 15a scarf of shell, the front side in cap 2 and the card base seat 15b before corresponding to shell Position has extended downwardly card base 24b before a cap, card base 24b and card base seat 15b scarf before shell before the cap, in cap 2 The rear side and position of card base seat 15c has extended downwardly card base 24c after a cap, card base after the cap after corresponding to shell 24c and card base seat 15c scarf after shell；On shell 1 and corresponding to the upper edge of aforementioned motor protector accommodating chamber 11 Circumferentially-spaced composition have shell positioning column 16, aforementioned cap 2 left end rear and correspond to shell positioning column 16 position It sets and opens up the quantity cap positioning post holes 25 equal with shell positioning column 16, which positions post holes 25 and 16 phase of shell positioning column Cooperate

Fig. 5 is referred to, constituting on cap 2 and in the position for corresponding to the additional protector 5 of aforementioned motor has a briquetting 26, constituting on the briquetting 26 has the additional protector limit chamber 261 of a motor, the additional protector limit chamber 261 of the motor and electricity The additional protector 5 of machine contacts, and more particularly contacts in the middle part of aforementioned 512 side of box body.

Since the structure and working principle and the mechanism of action of aforementioned motor protector 3 belong to well-known technique and by applying The patent document that people refers in background technique column above is described in detail, thus applicant repeats no more.

Aforementioned motor protector 3 is then born the responsibility by the additional protector 5 of the motor of the utility model to motor after failure Protective effect.Because in load motor overload, automatic tripping, is risen if aforementioned motor protector 3 is GPF (General Protection False device It to the effect of protection circuit, is then automatically replied when temperature is restored to room temperature, circuit restores normal, based on this reason, therefore can claim it For reversible motor protecter 3.For the additional protector 5 of motor, due to its be non-conventional motor protector (i.e. " very Advise protector "), thus in load motor abnormal work, and in motor protecter 3 because of such as contact oxidation, elastic slice Component, that is, elastomeric element follows the string, the abnormal factors of part distortion etc cause the duty that fails and cannot fulfil again protection circuit When duty, then being born the responsibility by the additional protector 5 of the utility model motor protects the effect of circuit, once motor adds protector 5 Disconnecting circuit.It specifically adds bimetal leaf 514 to be heated and deform, basin shape chamber 5143 above-mentioned is under (in such as Fig. 3 Shown in dotted line), separate the left contact 51411 of bimetal leaf with box cover contact pin contacts 5122 and the right contact of bimetal leaf 51421 separate with the additional protector pin contacts 523 of motor, and can not restore after being deformed due to additional bimetal leaf 514, remove It is non-by inspection personnel artificially make its restore just so that the recovery of bimetal leaf left and right contact 51411,51421 to respectively with it is aforementioned The state of box cover contact pin contacts 5122 and additional 5123 electrical contact of protector pin contacts of motor, otherwise circuit is located always In open-circuit condition without turn on automatically, therefore motor can be thoroughly protected, improve the safety of starting.

Fig. 5 is referred to, the position of inserted sheet 41 is also constituted on cap 2 above-mentioned and before corresponding to starter above-mentioned There is inserted sheet patch before a starter to touch limited block 27a, inserted sheet patch touching limited block 27a is affixed with inserted sheet 41 before starter before the starter Touching；On cap 2 and correspond to aforementioned starter after inserted sheet 42 position also constitute have a starter after inserted sheet limited block 27b, inserted sheet patch is touched after inserted sheet limited block 27b and starter after the starter；On cap 2 and corresponding to aforementioned inserted sheet 39 Position also constitute and have a cap inserted sheet caulking groove 27d, the top of aforementioned inserted sheet 39 is also inserted into inserted sheet caulking groove 27d；In cap 2 Constituting above and also in the position for corresponding to aforementioned movable contact spring 38 has a movable contact spring limited block for limiting to movable contact spring 38 27e, the movable contact spring limited block 27e are contacted with movable contact spring 38.

In conclusion technical solution provided by the utility model compensates for the shortcoming in prior art, favorably accomplish Invention task has faithfully fulfilled the technical effect that applicant refers in technical effect column above.

Claims

1. a kind of electric motor starting protector with double protection functions, including including a shell (1) and a cap (2), shell (1) constituting has a motor protecter accommodating chamber (11) and a motor starter accommodating chamber (12), and cap (2) and shell (1) match It closes；One motor protecter (3), the motor protecter (3) setting is in the motor protecter accommodating chamber (11)；One electric motor starting Device (4), the motor starter (4) are arranged in the motor starter accommodating chamber (12), it is characterised in that in the shell In body (1) and in the position structure for the motor protecter accommodating chamber anterior cavity wall (111) for corresponding to motor protecter accommodating chamber (11) Cheng Youyi motor is additional protector accommodating chamber partition wall (13), the motor additional protector accommodating chamber partition wall (13) and shell (1) the space between shell front side wall is configured to motor and adds protector accommodating chamber (131), in the additional protector of the motor It is additional protector (5) that a motor is provided in accommodating chamber (13), the motor additional protector (5) and the motor protecter (3) electrical contact.

2. the electric motor starting protector according to claim 1 with double protection functions, it is characterised in that the electricity Machine protector accommodating chamber (11) is located at the left end rear of the shell (1), and the motor starter accommodating chamber (12) is located at shell The right end of body (1), the motor additional protector accommodating chamber (131) are located in front of the left end of shell (1).

3. the electric motor starting protector according to claim 1 with double protection functions, it is characterised in that in the electricity Constituting on machine additional protector accommodating chamber partition wall (13) has a motor protecter contact foot jack (132) and the additional guarantor of a motor It is fixed inserted sheet location hole (133) to protect device pin, motor protecter contact foot jack (132) is located at the additional protector accommodating chamber of motor The left end of partition wall (13), and the additional protector pin of motor fixed inserted sheet location hole (133) is located at the additional protector of motor and holds The right ends of chamber partition wall (13) is received, and corresponding with motor protecter contact foot jack (132), on the cap (2) And a motor, which is offered, in the position for corresponding to motor additional protector accommodating chamber (131) adds protector pin holes (21), The upper surface of the motor additional protector pin holes (21) from cap (2) penetrates through to lower surface and holds with the additional protector of motor Chamber (131) of receiving communicates, the motor additional protector (5) being arranged in the motor additional protector accommodating chamber (131) with The additional protector pin of the motor fixed inserted sheet location hole (133) and the motor are additional protector pin holes (21) It inserts scarf to close, the motor protecter (3) being arranged in the motor protecter accommodating chamber (11) crosses the electric motor protecting The top of device accommodating chamber anterior cavity wall (111) and motor protecter contact foot jack (132) inserting.

4. the electric motor starting protector according to claim 3 with double protection functions, it is characterised in that the electricity Machine addition protector (5), which includes that a faulty circuit is additional, cut-offs mechanism (51) and motor addition protector pin (52), failure Circuit is additional to be cut-off mechanism (51) setting in the motor additional protector accommodating chamber (131) and adds protector with motor Pin (52) and with the motor protecter (3) electrical contact in the motor protecter accommodating chamber (11), electricity are set The top of machine additional protector pin (52) merges with the slotting scarf of the motor additional protector pin holes (21) and leans out electricity Machine additional protector pin holes (21) is stretched over the top of the cap (2), in the lower part of motor additional protector pin (53) Right side has extended downwardly the additional protector pin of a motor and has fixed inserted sheet (521), the fixed inserted sheet of the additional protector pin of the motor (521) in the additional protector pin of the insertion motor fixed inserted sheet location hole (133)；It is accommodated in the motor protecter The top of chamber anterior cavity wall (111) offers a contact foot caulking groove (1111), and the motor protecter (3) crosses contact foot caulking groove (1111) with described motor protecter contact foot jack (132) inserting.

5. the electric motor starting protector according to claim 4 with double protection functions, it is characterised in that the event Additional cut-off mechanism (51) of barrier circuit include a box body (511), a box cover (512), a screw shaft (513) and an additional bimetallic Piece (514), box body (511) composition have one additional bimetal leaf accommodating chamber (5111), and box cover (512) and box body (511) scarf are simultaneously And the box cover (512) is inserted in the addition protector accommodating chamber (131) in company with box body (511), in box cover (512) Heart position offers a screw shaft connecting screw hole (5121), and a box cover contact pin contacts are fixed on the left of box cover (512) (5122), it is additional protector pin contacts (5123) that a motor is fixed with and on the right side of box cover (512), box cover contact pin contacts (5122) motor starter (3) electrical contact with setting in the motor protecter accommodating chamber (11), and motor chases after Add protector pin contacts (5123) and fixed inserted sheet (521) electrical contact of the additional protector pin of the motor, screw shaft (513) upper end is connect in the position for corresponding to screw shaft connecting screw hole (5121) with box cover (512), and screw shaft (513) Lower end is located in additional bimetal leaf accommodating chamber (5111), and additional bimetal leaf (514) are located at additional bimetal leaf accommodating chamber (5111) in, and the center of the addition bimetal leaf (514) is nested in the lower end of screw shaft (513), double in the addition The left contact base of a bimetal leaf (5141) is extended on the left of sheet metal (514), on the left contact base of the bimetal leaf (5141) And the left contact of a bimetal leaf (51411), this pair are fixed in the position for corresponding to the box cover contact pin contacts (5122) One end of the left contact of sheet metal (51411) and box cover contact pin contacts (5122) towards additional bimetal leaf accommodating chamber (5111) is electric Gas contact, is extended with the right contact base of a bimetal leaf (5142) on the right side of additional bimetal leaf (514), on the bimetal leaf right side A pair of gold is fixed on contact base (5142) and in the position for corresponding to the motor additional protector pin contacts (5123) Belong to the right contact of piece (51421), the right contact of the bimetal leaf (51421) is chased after with motor additional protector pin contacts (5123) direction Add one end electrical contact of bimetal leaf accommodating chamber (5111), wherein the screw shaft (513) lower end and corresponding to The position of the lower section of the additional bimetal leaf (514) is fixed with a bimetal leaf free gap and limits circle (5131), described Box cover (512) is made of insulating material.

6. the electric motor starting protector according to claim 5 with double protection functions, it is characterised in that described chases after Bimetal leaf (514) is added to be formed with a basin shape chamber (5143), the box-like chamber (5143) is towards the box cover (512)；Described End of the motor additional protector pin contacts (5123) towards one end of the additional protector pin of the motor fixed inserted sheet (521) Silver contact is combined on face.

7. the electric motor starting protector according to claim 5 with double protection functions, it is characterised in that in the electricity Every being equipped with a static contact pin chamber (112) in front of the right side of machine protector accommodating chamber (11), the motor protecter (3) includes Pedestal (31), fixing seat (32), bimetal leaf (33), heating wire (34), mandril (35), bimetal leaf support ring (36), stationary contact Piece (37), movable contact spring (38) and inserted sheet (39), pedestal (31) are base of ceramic, and the pedestal (31) composition has a pedestal chamber (311), At the accent position of the pedestal chamber (311), the circumferencial direction composition around pedestal chamber (311) has a bimetal leaf mount (3111), and the pedestal (31) is contained in the motor protecter with state of the accent of its pedestal chamber (311) under and holds It receives in chamber (11), offers a jogger hole (3121) in the central location of the susceptor top wall (312) of pedestal (31), and in pedestal Heating wire the first leading foot transitional pore (3122), heating wire the second leading foot transitional pore are also provided on roof (312) (3123) and a pair of of fixing seat locating flange mating cavity (3124), heating wire the first leading foot transitional pore (3122) and heating wire Second leading foot transitional pore (3123) is located at the left side of jogger hole (3121), and a pair of of fixing seat locating flange mating cavity (3124) The front and back side of jogger hole (3121) is corresponded respectively to, side of the fixing seat (32) under, which is constituted, a fixing seat chamber (321), The roof of fixing seat (32) towards fixing seat chamber (321) side and corresponding to a pair of of fixing seat locating flange mating cavity (3124) position, which is constituted, a pair of of fixing seat locating flange (3211), offers in the central location of the roof of fixing seat (32) Mandril relief hole (322), the mandril relief hole (322) is corresponding with jogger hole (3121), on the top of fixing seat (32) Be also provided on wall a movable contact spring chamber (323), an inserted sheet caulking groove (324), heating wire the first leading foot guide hole (325) and One heating wire the second leading foot guide hole (326), movable contact spring chamber (323) are located at the middle position of the roof of fixing seat (32), inserted sheet Caulking groove (324), heating wire the first leading foot guide hole (325) and heating wire the second leading foot guide hole (326) are located at fixing seat (32) left side of roof, the pedestal (31) are inserted in the fixing seat chamber (321), and described a pair is fixed Seat locating flange (3211) is matched with a pair of of fixing seat locating flange mating cavity (3124), and bimetal leaf (33) is shelved On bimetal leaf mount (3111), bimetal leaf support ring (36) is bimetal leaf (33) back to pedestal chamber in correspondence (311) position of side is similarly disposed on bimetal leaf mount (3111), right by the bimetal leaf support ring (36) The surrounding edge locator qualification of bimetal leaf (33), heating wire (34) setting is in bimetal leaf (33) towards pedestal chamber (311) Side, constituting in one end of the heating wire (34) has first leading foot of heating wire (341), and other end composition has a heating wire Second leading foot (342), the first leading foot of heating wire (341) are sequentially passing through heating wire the first leading foot transitional pore (3122) it is electrically connected afterwards with the inserted sheet (39) with heating wire the first leading foot guide hole (325), the second leading foot of heating wire (342) heating wire the second leading foot transitional pore (3123) and heating wire the second leading foot guide hole (326) are being sequentially passed through It is electrically connected afterwards with the movable contact spring (38), mandril (35) is ceramic mandril, and the lower end of the mandril (35) is supported on bimetallic Piece (33) is towards the side of pedestal chamber (311), and the upper end of mandril (35) is stepped down sequentially passing through jogger hole (3121) and mandril Hole (322) is contacted with the movable contact spring (38) afterwards, is fixed when the middle part of static contact (37) is with the fixing seat (32) injection molding In on fixing seat (32), and is constituted in one end of the static contact (37) towards upper side and has a static contact static contact (371), Other end composition has a static contact pin (372), and static contact static contact (371) corresponds to the front of the movable contact spring chamber (323), And the movable contact spring chamber is arranged in static contact pin (372) and described static contact pin chamber (112) inserting, movable contact spring (38) (323) in, and a movable contact spring moving contact (381), middle part court are fixed in side of the front end of the movable contact spring (38) under Downward side, which is constituted, mandril pushing tow flange (382), and the rear end of movable contact spring (38) and the state perpendicular to movable contact spring (38) Composition has a movable contact spring to extend piece (383), and constituting in the left end of movable contact spring extension piece (383) has a heating wire leading foot to fix Engaging lug (3831), and movable contact spring extension piece fixation hole (3832) is offered in the right end of movable contact spring extension piece (383), it is described Movable contact spring moving contact (381) correspond to the static contact static contact (371) top, the mandril pushing tow flange (382) corresponding with the upper end end face of the mandril (35), second leading foot of heating wire (342) is drawing the heating wire Second leading foot guide hole (326) is fixedly connected with ear (3831) with the heating wire leading foot afterwards and is fixedly connected, in the fixing seat (32) constituting on and in the position for corresponding to movable contact spring extension piece fixation hole (3832) has an extension piece fixing lug boss (327), the scarf of piece fixation hole (3832) and extension piece fixing lug boss (327) is extended by movable contact spring and expand the movable contact spring It opens up piece (383) to be arranged on fixing seat (32) together with the movable contact spring (38), inserted sheet (39), which is inserted, is embedded in the inserted sheet caulking groove (324) in, the motor protecter is crossed in the position for corresponding to the contact foot caulking groove (1111) in the front end of the inserted sheet (39) Accommodating chamber anterior cavity wall (111) and folding exhibition downwards and constituting has a contact foot (391), which is inserted into the motor In protector contact foot jack (132), first leading foot of heating wire (341) is drawn first leading foot of heating wire and is led Hole (325) is fixedly connected with the inserted sheet (39) afterwards, the box cover contact pin contacts (5122) and the contact foot (391) Front side electrical contact；In the opposite side of the left contact of the bimetal leaf (51411) and the box cover contact pin contacts (5122) Surface be respectively combined with silver contact；In the right contact of the bimetal leaf (51421) and the additional protector pin contacts of the motor (5123) surface of opposite side is respectively combined with silver contact；In box cover contact pin contacts (5122) towards the contact foot (391) a side surface is combined with silver contact.

8. the electric motor starting protector according to claim 1 with double protection functions, it is characterised in that in the electricity In machine starter accommodating chamber (12) and it is located at the left end of motor starter accommodating chamber (12) every slotting equipped with pin before a starter Pin receptacle chamber (122) after seat chamber (121) and a starter, it is slotting after pin receptacle chamber (121) and starter before the starter Foot socket cavity (122) correspondence each other, the right end in the cap (2) and the pin receptacle chamber before corresponding to starter (121) position offers pin insertion hole (22) before a starter of the thickness direction of a perforation cap (2), and is corresponding to The position of pin receptacle chamber (122) is inserted after offering a pair of of starter of the thickness direction of same perforation cap (2) after dynamic device Foot jack (23), the motor starter (4) and the starter being arranged in the motor starter accommodating chamber (12) Pin insertion hole (22) and a pair of of starter before pin receptacle chamber (122), starter after preceding pin receptacle chamber (121), starter Pin insertion hole (23) inserting afterwards.

9. the electric motor starting protector according to claim 8 with double protection functions, it is characterised in that in the electricity The bottom of machine starter accommodating chamber (12) constitutes the positive temperature system for the bottom surface for having a pair to be raised in motor starter accommodating chamber (12) Number thermal resistor supporting boss (123), to positive temperature coefficient thermistor supporting boss (123), left and right is corresponded to each other for this, The motor starter (4) includes inserted sheet (42), single reed (43) and positive temperature system after inserted sheet (41), starter before starter Number thermal resistor (44), positive temperature coefficient thermistor (44) are arranged with longitudinal state in motor starter accommodating chamber (12) It is interior and be supported on a pair of of positive temperature coefficient thermistor supporting boss (123), before starter inserted sheet (41) with And inserted sheet (42) corresponds respectively to the front and back side of positive temperature coefficient thermistor (44) after starter, wherein before starter Contact chip (411) before the side of the right end of inserted sheet (41) towards positive temperature coefficient thermistor (44) is fixed with one connects before this The leading flank electrical contact of contact (411) and positive temperature coefficient thermistor (44), the left end of inserted sheet (41) before starter Top has upwardly extended pin (412) before a starter, and the left end lower part of inserted sheet (41) and is corresponding to before starter The position of pin (412) has extended downwardly pin receptacle (413) before a starter before starter, and pin (412) is inserted before starter Enter pin insertion hole (22) before the starter and is stretched over the top of the cap (2), pin receptacle (413) before starter Before the insertion starter in pin receptacle chamber (121), inserted sheet (42) is towards posive temperature coefficient thermistor after starter Contact chip (421) after the side of device (44) is fixed with one, the rear contact chip (421) and positive temperature coefficient thermistor (44) Trailing flank electrical contact, the upper edge of inserted sheet (42) is extended with pin (422) after a pair of of starter after starter, this is to starter Pin insertion hole (23) is interior after pin (422) insertion a pair of of starter afterwards and is stretched over the top of cap (2), single reed (43) inserted sheet (42) and positive temperature coefficient heat are set after starter in the position on the right side for corresponding to the rear contact chip (421) Between sensitive resistor (44), it is extended with a single reed above the list reed (43) and plants foot (431), in the cap (2) Above and corresponding to the position composition that monolithic plants foot (431) there is list reed plant foot locating slot (27c), single reed is planted Foot (431) and single reed plant foot locating slot (27c) inserting.

10. the electric motor starting protector according to claim 1 with double protection functions, it is characterised in that in the shell Constituting on the left side outer wall of body (1) has the left card base seat (15a) of a shell, and constituting on the front side outer wall of shell (1) has a shell Preceding card base seat (15b), and constituting on the rear side outer wall of shell (1) has card base seat (15c) after a shell, in the cap (2) Left side extended downwardly the left card base of a cap (24a), the position of the left card base of the cap (24a) and the left card base seat (15a) of shell It is corresponding and with left card base seat (15a) scarf of shell, cap (2) front side and correspond to shell before card base seat The position of (15b) has extended downwardly card base (24b) before a cap, and card base (24b) and card base seat (15b) before shell are embedding before the cap Match, cap (2) rear side and the position of card base seat (15c) has extended downwardly card base after a cap after corresponding to shell (24c), card base seat (15c) scarf after card base (24c) and shell after the cap；On shell (1) and corresponding to the electricity The circumferentially-spaced composition on the upper edge of machine protector accommodating chamber (11) has shell positioning column (16), behind the left end of the cap (2) Just and the quantity cap equal with shell positioning column (16) is opened up in the position for corresponding to shell positioning column (16) position post holes (25), cap positioning post holes (25) is matched with shell positioning column (16), on cap (2) and is corresponding to the motor The position of additional protector (5), which is constituted, a briquetting (26), and constituting on the briquetting (26) has the additional protector limit of a motor Chamber (261), the motor additional protector limit chamber (261) are contacted with motor additional protector (5).