CN102097881B - Motor protecter - Google Patents
Motor protecter Download PDFInfo
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- CN102097881B CN102097881B CN200910249650.9A CN200910249650A CN102097881B CN 102097881 B CN102097881 B CN 102097881B CN 200910249650 A CN200910249650 A CN 200910249650A CN 102097881 B CN102097881 B CN 102097881B
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- Motor Or Generator Frames (AREA)
Abstract
A kind of motor protecter; comprise: the housing with opening; be positioned at the first motor protecter parts within described housing and the second motor protecter parts; described first motor protecter parts are connected with the second motor protecter unit Series, and the terminal of described first motor protecter parts and the second motor protecter parts is electrically connected to outside described housing.
Description
Technical field
The present invention relates to a kind of motor protecter, more specifically, relate to and a kind ofly multiple motor protecter parts are interconnected and are placed in housing to meet the motor protecter of specific design requirements.
Background technology
At present, market exists multiple motor protecter.Wherein typical motor protecter is the 3MP serial motors protector that such as can obtain from Sensata Technologies Massachusetts company trade, and its schematic structure as shown in figure 1.It comprises case member 1, bimetal leaf 2, moving contact 3, insert 4, packing ring 5, heater 6, fixed contact 7 and conductive soleplate 8.Its assembled after profile as shown in Figure 1B.China granted patent ZL.200720125503.7 describes the details of this 3MP motor protecter, is incorporated herein by reference herein.These motor protecters are mainly used in industrial environment.Specifically, in industrial environment, the operating voltage of motor is usually comparatively stable, and motor is mainly installed in factory building or indoor.Now, indoor variations in temperature is little.Therefore, external environment change is less on the impact of this motor protecter.Can carry out temperature correction to adapt to applied operational environment to the motor protecter of 3MP and 4MP series in advance, this calibration operation can automatically carry out in process of production.Thus, 3MP and 4MP serial motors protector structure is comparatively simple.In industry manufactures, all parts of this motor protecter can be produced in enormous quantities and can automatic assembling, therefore has lower manufacturing cost
When machine operation, temperature and electric current are two important parameters usually needing monitoring.But, if adopt temperature protection, then the abnormal conditions of current of electric cannot be detected in detail; On the other hand, if adopt current protection, then, when coolant leakage, single overcurrent protection will be lost efficacy.Specifically, when coolant leakage, although the operating current of motor is in normal level, now current protector not open circuit.But now temperature can raise abnormally, will on fire or damage motor time serious.In other words, when coolant leakage, single overcurrent protection will be lost efficacy.If adopt independent current protector and temperature protector in circuit simultaneously, then need reserved additional space, this obviously brings inconvenience to installation and maintenance, and such scheme is difficult to the environment being applicable to have requirements at the higher level.
In order to consider temperature and current protection simultaneously; and in order to adapt to the environment of requirements at the higher level; propose the motor protecter of structure relative complex, such as can obtain from Sensata TechnologiesMassachusetts company trade 3/4 " RBC motor protecter.Fig. 1 C shows the schematic diagram of this motor protecter.As shown in the figure, it comprises: multiple parts such as housing, set screw, nut, contact, multiple bimetal disk, fuse.3/4 " RBC motor protecter realizes temperature protection by multiple metal video disc and closed protection of losing efficacy while providing current protection.But, due to 3/4 " complexity of the structure of RBC motor protecter, its manufacturing cost is relatively high, and needs manual assembly due to the parts such as set screw and nut, therefore brings adverse effect to Automated assembly.
In addition, in the latter stage in the useful life of motor protecter, occur that its bimetal leaf cannot the phenomenon of regular event possibly.Also namely, motor protecter normally cannot play the effect of protection motor.This phenomenon is called as " inefficacy closed mode ".
Therefore, need a kind of motor protecter reduced costs, it can perform at least two kinds of protections simultaneously.Further, it is desirable to make this protector be adapted to complex environment.Further, it is desirable to can effectively prevent inefficacy closed mode.Further, this motor protecter is easy to Automated assembly.
Summary of the invention
The present inventor creatively proposes a kind of motor protecter, and it has more simple structure, has simultaneously and is at least equivalent to such as 3/4 " performance of RBC protector.Further, motor protecter of the present invention can adopt automatic assembly line to assemble, and greatly can improve and manufacture efficiency and output.
According to an aspect of the present invention, provide a kind of motor protecter, comprising: the housing with opening; Be positioned at the first motor protecter parts within described housing and the second motor protecter parts; described first motor protecter parts are connected with the second motor protecter unit Series, and the terminal of described first motor protecter parts and the second motor protecter parts is electrically connected to outside described housing.
Accompanying drawing explanation
Figure 1A-1C shows the schematic diagram of the motor protecter according to prior art;
Fig. 2 shows the schematic diagram of motor protecter according to an embodiment of the invention;
Fig. 3 shows the schematic diagram of motor protecter in accordance with another embodiment of the present invention;
Fig. 4 shows the cutaway view of the motor protecter according to another embodiment of the present invention;
Fig. 5 shows the schematic diagram of the motor protecter according to another embodiment of the present invention; And
Fig. 6 A and 6B shows the schematic diagram assembling motor protecter according to an embodiment of the invention;
Embodiment
To the preferred embodiments of the present invention be described at this, please refer to the diagram of enclosing.In the diagram appended by the present invention, namely identical reference number represents identical structural element.
Fig. 2 shows an embodiment according to motor protecter of the present invention.Motor protecter 20 comprises the first motor protecter parts 21, second motor protecter parts 22, a pair leading-out terminal 23, housing 24.All parts will be introduced in detail below.
In the present invention, the first motor protecter parts 21 and the second motor protecter parts 22 can be the motor protecters of that can work alone, well known in the prior art any type.Preferably, the first motor protecter parts 21 and/or the second motor protecter parts 22 are as, 17AM serial at the 3MP serial motors protector that can obtain from Sensata TechnologiesMassachusetts company trade of the application's background technology introduction or the 6APE series such as obtained from Five Sacred Mountins, Yangzhou company trade, 3MPE
*series.In addition, another kind of conventional motor protecter is the 4MP serial motors protector that can obtain from Sensata Technologies Massachusetts company trade.But, it will be appreciated by those skilled in the art that being applicable to motor protecter of the present invention can only comprise housing, bimetal leaf, fixed contact, moving contact and leading-out terminal.
Second motor protecter parts 22 can be the motor protecters with the identical or different type of the first motor protecter parts 21.That is, the second motor protecter parts 22 can be protected from the aspect identical or different with the first desired aspect protected of motor protecter parts 21 motor.Specifically, in one embodiment, the first motor protecter parts 21 and the second motor protecter parts 22 can be temperature protectors.In another embodiment, the first motor protecter parts 21 can be temperature protectors, and the second motor protecter parts 22 can be current protectors.Although give model and the type of the current protector that can specifically use; but those skilled in the art are to be understood that; as long as motor protecter can play electric motor protecting effect in response to machine operation is abnormal and be suitable for in the present invention; then such protector can be placed in housing 24, thus can realize technique effect of the present invention.Such as, vibration protection device and current protector can be combined and be placed in housing 24.When motor vibrates excessive in the application, described vibration protection device will cut off circuit, thus prevents fault or parts damages.Although be illustrated for two protectors, but should be appreciated that the present invention is also applicable to the situation of multiple protector here.
In the embodiment shown in Figure 2, leading-out terminal 23 will extend to outside housing with opening opposing floor portion from housing, for being electrically connected to outside housing, but, in the prior art, the position that leading-out terminal 23 extends from housing 24 can be changed according to specific design, such as, also can consider to extend to outside housing from the sidewall of housing 24.The relative position of leading-out terminal and housing and set-up mode are known in the art.Leading-out terminal is made up of the metal that conductivity is good usually, such as copper.But, also can consider the electric conducting material using other suitable.
Housing 24 has opening, for holding the first motor protecter parts 21 and the second motor protecter parts 22 wherein.First motor protecter parts 21 and the second motor protecter parts 22 are isolated with external environment by housing 24; to reduce the impact of environmental change on the first motor protecter parts 21 and the second motor protecter parts 22; thus improving the performance of whole motor protecter 20, this will explain hereinafter in detail.The material of housing 24 can be such as phenolic plastics, the thermoset plastics of epoxy plastics etc., such as polysulfones (PSF), polyimide (PEI), PPSU (PPS), polyether sulfone (PES), polyether-ether-ketone (PEEK), polyamide-imide (PAI), polyimides (PI), the thermoplastics of polybenzimidazoles (PBI) etc. and such as pottery, the non-plastic nonmetallic materials of the heat-insulation materials such as alumina silicate.Be preferably phenolic plastics.Although give the example of certain material herein for explaining object of the present invention; but those skilled in the art are to be understood that; housing 24 is not limited in and is made up of above-mentioned material, can all should be regarded as falling within protection scope of the present invention by the various materials that the first motor protecter parts 21 and the second motor protecter parts 22 and external environment are isolated rightly.Preferably; the shape of housing 24 be cylindrical or part for cylindrical, the surface area of its end face or bottom surface can with existing 3/4 " serial motors protector is identical, or adopts other diameter ranges (such as; its diameter is 16mm-32mm) according to application, it is highly such as 8-40mm.But the shape of housing 24 also can be any other the suitable shape depending on practical application, and various sizes can be designed according to different application.
Structure according to motor protecter 20 of the present invention will be described in detail below.
With reference to figure 3; first motor protecter parts 21 and the second motor protecter parts 22 are placed in housing 24; described first motor protecter parts 21 and the second motor protecter parts 22 are electrically connected by connection 25 with being one another in series, and are extended outside housing 24 by leading-out terminal 23 (not shown) and be electrically connected with external circuit (shown in Figure 4).Connection between first motor protecter parts 21 and the second motor protecter parts 22 can adopt various known mode, such as, connected, by being welded to connect or directly being linked together by leading-out terminal 23 by wire.The position of the first motor protecter parts 21 and the second motor protecter parts 22 can exchange.Such as, when the first motor protecter parts 21 and the second motor protecter parts 22 are motor protecter parts of same kind, its relative position can arbitrarily be exchanged.In addition; when the first motor protecter parts 21 and the second motor protecter parts 22 are dissimilar motor protecters; such as, when the second motor protecter parts 22 are current protectors when the first motor protecter parts 21 are vibration protection device, also its relative position can be exchanged.Further; when when the first motor protecter parts 21 are temperature protector, the second motor protecter parts 22 are current protectors, although its relative position also can be exchanged, but; in this case, preferably temperature protector is set to the opening close to housing.When practical application, the opening of housing surperficially will to contact with motor surface or other, thus be closed in the housing by motor protecter parts by this surface.Therefore, temperature protector parts are set to the working temperature contributing to induction machine or the external world more accurately close to the opening of housing, thus can protective value be improved.Can adopt and in various manners the first motor protecter parts 21 and the second motor protecter parts 22 are fixed among housing 24.As known to those skilled; motor protecter parts can be fixed by fluting, crimping, welding, bonding etc. technique, and Automated assembly can be adopted to complete the fixing of motor protecter parts first motor protecter parts 21, second motor protecter parts 22 and housing 24.
In figure 3, the first motor protecter parts 21 and the second motor protecter parts 22 are oriented relative to one another to 90 ° of angles settings.In this setup, easily the leading-out terminal of two motor protecter parts can be staggered, thus be conducive to being connected in series of two motor protecter parts.But above-mentioned angle is not restrictive, the first motor protecter parts 21 and the second motor protecter parts 22 can each other in 0 ° of angle overlaps; in addition, those skilled in the art also it is contemplated that other suitable angles, such as; according to application, the angle of 60 °-120 ° preferably can be adopted.
Below will introduce other execution modes of the present invention; after having read specification of the present invention; those skilled in the art can understand and carried out combining and then draw various motor protecter by various execution mode, and these combinations also should be regarded as fall into protection scope of the present invention.
As shown in Figure 3, housing 24 surrounds the first motor protecter parts 21 and the second motor protecter parts 22.But, in one embodiment, at the first motor protecter parts 21 and cavity can be formed between the second motor protecter parts 22 and housing 24.Position 31 place such as shown in accompanying drawing 3 can form cavity.Described cavity can reduce the impact of external environment on motor protecter parts further.Such as, the inwall being used for fixed electrical machinery protector parts can be formed in the opening of housing.Cavity is defined between this inwall and housing 24.The volume of the cavity formed at position 31 place can adjust according to design requirement.In addition, also asymmetric cavity body structure can be designed.The present invention is not only confined to the illustratively above-mentioned execution mode provided, and should be appreciated that the cavity that can form various shape and size between motor protecter parts and housing.The cavity of the various shape and size of Environment Design that those skilled in the art will be able to apply according to motor protecter.
In another embodiment, as shown in Figure 4, two pairs of support components 41,42 are used to support and fix the first and second motor protecter parts in the housing.As shown in Figure 4, a pair first support components 41 support the first motor protecter parts 21, and a pair second support components 42 (illustrate only one of them) support the second motor protecter parts 22.The main body of described support member supports motor protecter parts, and it is highly suitable for leading-out terminal is electrically connected to outside housing 24.
In another embodiment, as shown in Figure 4, between the first motor protecter parts 21 and the second motor protecter parts 22, division board 43 is provided with.Its role is to electric isolution and/or heat isolation two motor protecter parts.Such as; when there are the motor protecter parts of temperature sensor between the first motor protecter parts 21 and the second motor protecter parts 22; first motor protecter parts 21 and the second motor protecter parts 22 are separated by division board 43 temperature that predetermined distance helps avoid two protector parts mutually to disturb, and then improve the performance of motor protecter.In addition, when needed, division board 43 also can play the effect of electric insulation obviously, such as, use insulating material to manufacture division board 43.The thickness of division board, material and size can according to the application-specific of protector performance requirement, protector and use the thermal conductivity of material to determine, such as, the material that above-mentioned housing adopts can be adopted.In the example shown in accompanying drawing 4, by division board 43, two protector parts are separated mutually.But, can air be used simply as isolation, namely simply the main body of two protector parts be fixed separated from each other.In one embodiment, when have employed 3/4 " shell sizes of RBC motor protecter time, the distance D1 between two protector parts can be 0.5mm ~ 18mm.In this case, the method such as welding, rigid line connection can be adopted to make two protector parts separate and keep predetermined distance.
First motor protecter parts 21 of motor protecter parts can change according to applied environment apart from the distance D2 of shell nozzle.In the diagram, the first motor protecter parts 21 are close on end cap.But, by selecting the size of housing 24, the thickness of division board 43 and regulating the first motor protecter parts 21 apart from the distance D2 of shell nozzle according to selected motor protecter parts.Such as, when the first motor protecter parts 21 are current protector parts, suitably away from shell nozzle, thus the work of these current protector parts of heat effects come from motor transmission can be avoided.When the first motor protecter parts 21 are temperature protector parts, can suitably close to shell nozzle, thus the sensitivity improved motor temperature induction and accuracy.
The openend of end cap 51 closure casing, by motor protecter seal parts in the housing.The material of end cap 51 is insulating material, and it can be the above-mentioned disclosed material for housing.The existence of end cap 51 can the effect that is isolated from the outside of lifting motor protector parts further.
In addition, in Figure 5, fuse 52 is connected in series between the first motor protecter parts 21 and the second motor protecter parts 22.Such as, as shown in Figure 2, connecting 25 can be fuse 52.As mentioned above, in the latter stage in the useful life of protector, may occur that protector can not the problem of regular event.When occurring dangerous, because protector can not regular event, therefore there is motor and losing protection and impaired danger.The use of fuse 52 can in these cases for motor provides protection.Even if protector can not regular event, when electric current is too high or temperature is too high, fuse 52 can fuse, and still can provide protection to motor thus.Different from motor protecter parts, fusing is now expendable.When user finds that motor protecter can not be resumed work, by checking fuse can determine whether it is that problem has appearred in motor protecter parts.Here, the fuse of various different size can be provided according to application.Such as, the fuse being less than 10 seconds during 50A can be used herein.Preferably, the fuse adopted away from temperature protector parts, to reduce the impact of fuse on temperature protector parts.
The method manufacturing motor protecter of the present invention will be introduced below.
First, housing is provided.Housing can be made up of such as above-disclosed material, and material suitable arbitrarily also can be used to make.Housing can be obtained by the method such as molding or mold pressing.Described housing is manufactured to and the first and second motor protecter parts can be placed in one, and allows a pair leading-out terminal to be electrically connected to outside.The position that leading-out terminal is electrically connected to outside housing from housing can be selected according to application-specific, such as, can extend from the bottom of housing or extend to outside housing from the sidewall of housing.After this, any means can be adopted to be fixed in housing by the first motor protecter parts being connected with a leading-out terminal, and leading-out terminal is extended to outside housing from the precalculated position of housing.Such as, in one embodiment, in housing 33, utilize adhesive fixed electrical machinery protector parts.In another embodiment, as shown in Figure 4, two pairs of support components 41,42 can be adopted to support and fix the first motor protecter parts, and form extra cavity between this motor protecter parts and housing bottom.This extra cavity is suitable for the motor protecter holding different size, and can provide extra cavity.Those skilled in the art can adopt any suitable method to fix this motor protecter parts, such as but not limited to welding, crimping, engagement etc.After this, by suitable method, the second motor protecter unit Series being connected with another leading-out terminal is connected to the first motor protecter parts, and leading-out terminal is extended to outside housing from the precalculated position of housing.Such as, the various ways such as welding, rigid line connection, flexible cord connection, engagement can be adopted.Preferably, the angle of 60 ° to 120 ° can be had between the first and second motor protecter parts.More preferably, with 90 ° of angles, the second motor protecter parts can be fixed to the first motor protecter parts.
Fig. 6 A and 6B shows according to an embodiment of the invention by the motor protecter of crimping assembling.As shown in Figure 6A, leading-out terminal has end of engagement 61, and this end of engagement had hangnail end 62 and laterally projecting portion 63 before crimping.When leading-out terminal being placed in housing from the opening of housing, laterally projecting portion 63 is forced into the flange 64 formed in housing.After this, by crimping curved barb end 62, form claw-like together with laterally projecting portion 63, this claw links closely the flange 64 of housing.When motor protecter parts and leading-out terminal are fixed together, motor protecter parts can be fixed to housing by above-mentioned crimping step.Preferably, in advance the connecting terminals of a leading-out terminal and the first motor protecter parts self can be connected together, then it be integrally fixed on housing.After this, the connecting terminals of another leading-out terminal and the second motor protecter parts self is connected together, then it is integrally fixed on housing and the first motor protecter parts.Various method wherein can be adopted to carry out above-mentioned fixing.Such as, by modes such as welding, riveted joint, grafting, leading-out terminal can be fixed on motor protecter parts.Leading-out terminal can be fixed on housing by the mode such as bonding, riveted joint, crimping.Can make to separate certain distance between motor protecter parts by various mode.Such as, in the embodiment shown in Figure 4, the support section that have employed two pairs of differing heights supports two protector parts, realizes separation therebetween thus.Although give the example using independently leading-out terminal as shown in Figure 4, but, also can omit this leading-out terminal, directly use the terminal (as shown in Figure 1B) of motor protecter parts itself as leading-out terminal 23.Such as, it may occur to persons skilled in the art that the terminal of motor protecter parts 21,22 self is formed as suitable shape, for being electrically connected to outside housing.
By forming crimp type terminal and form corresponding engaging structure on housing, thus, after crimping, the crimp type terminal of motor protecter can be fixed on housing.
In one embodiment, when one of them motor protecter is temperature protector, this protector is placed in than the opening of another protector closer to housing.
In addition, can the predetermined distance D1 in interval between the first and second motor protecter parts.It will be appreciated by those skilled in the art that and can pre-determine this distance according to factors such as application-specific, the type of motor protecter parts adopted, the sizes of housing.Such as, adopt 3/4 " overall dimension of serial motors protector time, this distance D1 is preferably 0.5-18mm.Further, division board can be used to isolate described first and second motor protecter parts, thus reduce influencing each other between two protectors.
In addition, the first and second motor protecter parts can also be connected in series by fuse, realize the protection to inefficacy closed mode thus, when the specification of described fuse can be such as 50A, be less than 10 seconds.
In one embodiment, the second motor protecter parts can be set to the opening part of housing at a distance of predetermined distance.Those skilled in the art can pre-set this distance according to application-specific, and the performance of motor protecter parts can be made thus to reach best.
In other embodiments, one or more cavity can be formed between the first and second motor protecter parts and housing.The external environment will be able to applied according to motor protecter pre-sets the position of this cavity, shape, number and size.Such as, when needing isolated external environment, more, that volume is larger cavity can be set.The present invention does not limit and forms the volume of cavity, shape and method, as long as can realize the execution mode that the present invention instructs, those skilled in the art can envision multiple alternate embodiments.
In one embodiment, fill insulant in formed cavity, this can make motor protecter parts be avoided the impact of ambient temperature further.In another embodiment, form enclosure space by end cap and housing, the motor protecter parts be placed in one are isolated from the outside.As mentioned above, the material of end cap can select insulating material.
The foregoing describe various embodiment of the present invention.Obviously, various embodiment of the present invention can combine mutually.Such as, while end cap is provided, various insulating material can be filled in cavity.In addition, depend on specific application, can interval is predetermined between two protectors distance D1, the distance D2 that simultaneously open space of one of them protector and housing can be made predetermined.Can form the cavity of various shape and size in the housing, end cap and housing can adopt identical material, also can use different materials respectively, and can use various dissimilar motor protecter parts.
The technique effect will introduced the present invention and realize below.By being combined with multiple protector parts in the housing, multi-protective function can be realized with a protector.Such as, only use a protector simultaneously to motor temperature and current protection.On the other hand, motor protecter of the present invention has the cost of reduction, and it is compared to 3/4 " RBC decreases multiple parts such as such as support, hold-down screw, nut, and therefore have and reduce costs.Further, motor protecter of the present invention at least have be equivalent to 3/4 " performance of RBC motor protecter, 3/4 can be replaced in actual applications " RBC.On the other hand, such as installing, debug, transport, in use procedure, the leading-out terminal of motor protecter may be subject to the effect of external force and be out of shape, fracture etc.To this; 3/4 " side force that the terminal of RBC motor protecter can bear is approximately 3KG; and the motor protecter that have employed technical solution of the present invention is due to the fixation of housing and support component; and the side force of at least 5KG can be provided, which greatly enhances the ability of motor protecter antagonism external environment change.Finally; with existing various outer shell for protector of electric machine, there is identical size when being made by housing; can use simply motor protecter of the present invention directly replace various high cost, the motor protecter of complex process, and without the need to the inside that changes motor or external structure.Such as, when housing 33 is made and 3/4 " housing of motor protecter is when having same size (such as, its diameter is 16mm-32mm), can directly use motor protecter of the present invention to replace 3/4 " serial motors protector.Due to 3/4 " serial motors protector can not realize assembling automatically and manufacturing cost is higher, and therefore above-mentioned replacement will reduce the cost of motor protecter greatly.In addition, the housing of motor protecter according to the present invention can be manufactured the size being applicable to various motor (such as, compressor of air conditioner), can be applied to various application scenario to direct convenience thus.
In addition; compared with the baroque motor protecter used with prior art, because motor protecter according to the present invention avoids the parts using necessary manual adjustment, therefore its structure is simpler; be easy to install, be suitable for Automated assembly and correspondingly improve output.
In a preferred embodiment of the invention, by using fuse to be connected in series the first motor protecter parts and the second motor protecter parts, the protection for inefficacy closed mode can be provided thus.On the other hand; can by change housing material, increase end cap and/or pre-set end cap material, pre-set motor protecter parts and shell nozzle distance, pre-set the position/number/size of formed cavity and pre-set the kind of filled insulating material, realize the object regulating motor protecter performance according to applied environment neatly.Such as, when hope reduction external environment affects, end cap can be provided, between protector parts and end cap and between protector parts, fill various insulation and thermal insulation materials etc.In other words, in fact the present invention can use the motor protecter of low cost to realize flexible and the lifting of protective value, goes for various environment thus.
Can be described about specific embodiment by interests provided by the invention and advantage.These interests and advantage and may cause its occur become more significant any parts or restriction can not be interpreted as the key of any or all claim, needs or requisite feature.Term used herein is only used to describe specific embodiment, and is not intended to limit the disclosure.As used herein, unless context clearly separately explains, otherwise singulative " ", " one " and " described " are intended that and also comprise plural form.Will be further understood that, when using in this manual, term " comprises " and/or shows " comprising " existence of illustrated feature, entirety, step, operation, parts and/or assembly, but be not get rid of other features one or more, entirety, step, operation, parts, assembly and combination thereof existence or add.The equivalent intention that corresponding structure in following claims, material, action and all devices or step add functional elements comprise for perform as specific requirement with any structure of the function of other element combinations required, material or action.Therefore, comprise the device of a set of pieces, method or other embodiments and be not only confined to these elements, other elements that the embodiment not listing or state is intrinsic can be comprised.Object for example and explanation gives explanation of the present invention, but it is not exhaustive or is confined to the disclosure of disclosed form.When not deviating from protection scope of the present invention and spirit, those of ordinary skill in the art will understand multiple remodeling and change.
Although describe the present invention with reference to specific embodiment, should be appreciated that embodiment is exemplary, and scope of the present invention is not limited to these embodiments.To the multiple modification of above-described embodiment, amendment, additional and to improve be all possible.Should expect these modification, amendment, additional and improve and drop on as in the specifically described scope of the present invention of claim below.
Claims (12)
1. a motor protecter, comprising:
There is the housing of opening;
Have the first motor protecter parts be positioned at for overtemperature protection within described housing, these the first motor protecter parts have the first leading-out terminal and the second leading-out terminal, and the first leading-out terminal and the second leading-out terminal are relative to body bending in the same way;
Have the second motor protecter parts be positioned at for current protection within described housing, these the second motor protecter parts have the first leading-out terminal and the second leading-out terminal, and the first leading-out terminal and the second leading-out terminal are relative to body inverse bending;
Have and be positioned within described housing for connecting the fuse of the first motor protecter parts and the second motor protecter parts;
There is part and stretch out the first independent leading-out terminal outside described housing and the second independent leading-out terminal;
First leading-out terminal of described first motor protecter parts is electrically connected with described first independent leading-out terminal, and the second leading-out terminal of described first motor protecter parts is electrically connected with one end of described fuse;
First leading-out terminal of described second motor protecter parts is electrically connected with described second independent leading-out terminal, and described second leading-out terminal of the second motor protecter parts is electrically connected with other one end of described fuse; And
Wherein said first and second motor protecter parts at least comprise part case, bimetal leaf, fixed contact, moving contact and leading-out terminal separately; and described first and second motor protecter parts are the integrated motor protecters that can work alone, Automated assembly can be adopted thus to have carried out the fixing of the first and second motor protecter parts and described housing.
2. motor protecter as claimed in claim 1; wherein said first motor protecter parts are the thermal protector that self can work alone and described second motor protecter parts is current protectors that self can work alone, and wherein said first motor protecter parts are relative to the opening of described second motor protecter parts closer to housing.
3. motor protecter as claimed in claim 1 or 2, the shape of wherein said housing is cylindrical or part is cylindrical, and the diameter of its bottom surface is 16mm-32mm.
4. motor protecter as claimed in claim 3, between wherein said first motor protecter parts and the second motor protecter parts, the distance at interval is 0.5mm-18mm.
5. motor protecter as claimed in claim 1 or 2, has the plate be made up of insulating material between wherein said first motor protecter parts and the second motor protecter parts.
6. motor protecter as claimed in claim 2, described fuse is arranged away from described first motor protecter.
7. motor protecter as claimed in claim 1 or 2, wherein said first motor protecter parts and the second motor protecter parts angle are relative to each other the angle of 60 ° to 120 °.
8. motor protecter as claimed in claim 1, comprise end cap further, described end cap closes the opening of described housing.
9. motor protecter as claimed in claim 1 or 2, wherein forms cavity at described housing and between described first motor protecter parts and the second motor protecter parts.
10. motor protecter as claimed in claim 1, the terminal of wherein said motor protecter parts is electrically connected to outside described housing by independently leading-out terminal.
11. motor protecters as claimed in claim 10; wherein said independently leading-out terminal has end of engagement; this end of engagement comprises hangnail end and laterally projecting portion; by crimping bending described hangnail end thus form claw together with described laterally projecting portion, described claw links closely the flange in described housing.
12. 1 kinds of motors, is characterized in that employing the motor protecter as in claim 1-11 as described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910249650.9A CN102097881B (en) | 2009-12-11 | 2009-12-11 | Motor protecter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910249650.9A CN102097881B (en) | 2009-12-11 | 2009-12-11 | Motor protecter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102097881A CN102097881A (en) | 2011-06-15 |
| CN102097881B true CN102097881B (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910249650.9A Active CN102097881B (en) | 2009-12-11 | 2009-12-11 | Motor protecter |
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| Country | Link |
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| CN (1) | CN102097881B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038500B (en) * | 2018-09-05 | 2024-02-02 | 赵云文 | Motor starting protector with double protection functions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199236A (en) * | 1997-03-06 | 1998-11-18 | 德克萨斯仪器股份有限公司 | Motor protector device |
| CN1497636A (en) * | 2002-10-15 | 2004-05-19 | �¿���˹�����ɷ�����˾ | Motor protector dedicated to hermetic electric compressors |
| CN201663432U (en) * | 2009-12-11 | 2010-12-01 | 森萨塔科技麻省公司 | Motor protector |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2540413B2 (en) * | 1992-04-24 | 1996-10-02 | 山田電機製造株式会社 | Thermal relay |
| CN201122558Y (en) * | 2007-08-17 | 2008-09-24 | 森萨塔科技公司 | Temperature current protector |
-
2009
- 2009-12-11 CN CN200910249650.9A patent/CN102097881B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199236A (en) * | 1997-03-06 | 1998-11-18 | 德克萨斯仪器股份有限公司 | Motor protector device |
| CN1497636A (en) * | 2002-10-15 | 2004-05-19 | �¿���˹�����ɷ�����˾ | Motor protector dedicated to hermetic electric compressors |
| CN201663432U (en) * | 2009-12-11 | 2010-12-01 | 森萨塔科技麻省公司 | Motor protector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102097881A (en) | 2011-06-15 |
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