CN102097881A - Motor protector - Google Patents
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- CN102097881A CN102097881A CN2009102496509A CN200910249650A CN102097881A CN 102097881 A CN102097881 A CN 102097881A CN 2009102496509 A CN2009102496509 A CN 2009102496509A CN 200910249650 A CN200910249650 A CN 200910249650A CN 102097881 A CN102097881 A CN 102097881A
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Abstract
The invention discloses a motor protector, which comprises a shell with an opening, a first motor protector component and a second motor protector component, wherein the first motor protector component and the second motor protector component are positioned in the shell, and are connected in series, and the terminals of the first motor protector component and the second motor protector component are electrically connected to the exterior of the shell.
Description
Technical field
The present invention relates to a kind of motor protecter, more specifically, relate to and a kind ofly interconnect and place housing to satisfy the motor protecter of specific design requirements a plurality of motor protecter parts.
Background technology
At present, there is multiple motor protecter on the market.Wherein typical motor protecter is for example can be from the commercial 3MP serial motors protector that obtains of Sensata Technologies Massachusetts company, and its schematic structure is shown in accompanying drawing 1A.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.Profile after its assembling is finished is shown in Figure 1B.China granted patent ZL.200720125503.7 has put down in writing the details of this 3MP motor protecter, by reference it is incorporated herein herein.These motor protecters mainly are used in the industrial environment.Specifically, in industrial environment, the operating voltage of motor is comparatively stable usually, and motor mainly is installed in factory building or indoor.At this moment, indoor variations in temperature is little.Therefore, external environment changes less to the influence of this motor protecter.Can be in advance the motor protecter of 3MP and 4MP series be carried out temperature correction to adapt to applied operational environment, this calibration operation can carry out to automation in process of production.Thus, 3MP and 4MP serial motors protector structure are comparatively simple.In industry was made, each parts of this motor protecter can be produced in enormous quantities and can automation assemble, and therefore have lower manufacturing cost
When machine operation, temperature and electric current are two important parameters that need monitoring usually.Yet,, can't detect the abnormal conditions of current of electric in detail if adopt temperature protection; On the other hand, if adopt current protection, then under the situation of coolant leakage, single overcurrent protection will be lost efficacy.Specifically, when coolant leakage, although the operating current of motor is in normal level, current protector this moment open circuit not.Yet this moment, temperature can raise undesiredly, will on fire or damage motor when serious.In other words, when coolant leakage, single overcurrent protection will be lost efficacy.If in circuit, adopt independent current protector and temperature protector simultaneously, then need to reserve additional space, this has obviously brought inconvenience to installation and maintenance, and such scheme is difficult to be applicable to the environment with 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; the motor protecter of structure relative complex has been proposed, for example can from Sensata TechnologiesMassachusetts company commercial obtain 3/4 " the RBC motor protecter.Fig. 1 C shows the schematic diagram of this motor protecter.As shown in the figure, it comprises: a plurality of parts such as housing, set screw, nut, contact, a plurality of bimetal disk, fuse.3/4 " the RBC motor protecter is realized temperature protection and was lost efficacy closed protection by a plurality of metal video discs when current protection is provided.Yet, because 3/4 " and the complexity of the structure of RBC motor protecter, its manufacturing cost is higher relatively, and because parts such as set screw and nut need artificial assembling, therefore the automation assembling has been brought adverse effect.
In addition, in the latter stage in useful life of motor protecter, the phenomenon that its bimetal leaf can't regular event appears possibly.Also promptly, motor protecter can't normally play the effect of protection motor.This phenomenon is called as " inefficacy closed mode ".
Therefore, need a kind of motor protecter that reduces cost, it can carry out at least two kinds of protections simultaneously.Further, hope can make this protector be adapted to complex environment.Further, hope can prevent the closed mode that lost efficacy effectively.Further, this motor protecter is easy to the automation assembling.
Summary of the invention
The present inventor has creatively proposed a kind of motor protecter, and it has more simple structure, has simultaneously for example to be equivalent to 3/4 at least " performance of RBC protector.Further, motor protecter of the present invention can adopt the automatic assembly line assembling, can improve greatly and make efficient and output.
According to an aspect of the present invention, provide a kind of motor protecter, having comprised: housing with opening; Be positioned at the first motor protecter parts and the second motor protecter parts within the described housing; the described first motor protecter parts are connected with the second motor protecter unit Series, and the terminal of the described first motor protecter parts and the second motor protecter parts is electrically connected to outside the described housing.
Description of drawings
Figure 1A-1C shows the schematic diagram according to the motor protecter of 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 of another embodiment according to the present invention;
Fig. 5 shows the schematic diagram of the motor protecter of another embodiment according to the present invention; And
Fig. 6 A and 6B show and assemble the schematic diagram of motor protecter according to an embodiment of the invention;
Embodiment
To describe the preferred embodiments of the present invention at this, please refer to the diagram of enclosing.In the appended diagram of the present invention, identical reference number is promptly represented 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, the second motor protecter parts 22, a pair of leading-out terminal 23, housing 24.Below will introduce each parts in detail.
In the present invention, the first motor protecter parts 21 and the second motor protecter parts 22 can be motor protecters that can work alone, any type well known in the prior art.Preferably, the first motor protecter parts 21 and/or the second motor protecter parts 22 are can be from the commercial 3MP serial motors protector that obtains of Sensata TechnologiesMassachusetts company or for example from commercial 6APE series, 3MPE series, the 17AM that obtains of Five Sacred Mountins, Yangzhou company as what partly introduce in the application's background technology
*Series.In addition, another kind of motor protecter commonly used is can be from the commercial 4MP serial motors protector that obtains of Sensata Technologies Massachusetts company.Yet, it will be appreciated by those skilled in the art that to be applicable to that motor protecter of the present invention can only comprise housing, bimetal leaf, fixed contact, moving contact and leading-out terminal.
The second motor protecter parts 22 can be the motor protecters with the first motor protecter parts, 21 identical or different types.That is, the second motor protecter parts 22 can be from protecting motor with identical or different aspect, the aspect of the first motor protecter parts, 21 desired protections.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 provided the 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 the electric motor protecting effect in response to machine operation is unusual and be suitable for in the present invention; then such protector can be placed in the housing 24, thereby can realize technique effect of the present invention.For example, vibration protection device and current protector combination can be placed housing 24.When motor vibrates in application when excessive, described vibration protection device will cut off circuit, thereby prevents fault or parts damages.Although be that example is illustrated with two protectors here, yet should be appreciated that the present invention also is applicable to the situation of a plurality of protectors.
In the embodiment shown in Figure 2, leading-out terminal 23 will extend to outside the housing from the relative bottom with opening of housing, be used to be electrically connected to outside the housing, yet, in the prior art, can change leading-out terminal 23 according to specific design from the position that housing 24 extends, for example, also can consider to extend to outside the 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 by the conductivity good metal usually, for example copper.Yet, also can consider to use other suitable electric conducting materials.
Below will describe structure in detail according to motor protecter 20 of the present invention.
With reference to figure 3; the first motor protecter parts 21 and the second motor protecter parts 22 are placed in the housing 24; the described first motor protecter parts 21 and the second motor protecter parts 22 are electrically connected by being connected 25 with being one another in series, and extend outside the housing 24 by leading-out terminal 23 (not shown) and to be electrically connected (shown in Figure 4) with external circuit.Connection between the first motor protecter parts 21 and the second motor protecter parts 22 can be adopted various known modes, for example by lead connect, by being welded to connect or directly linking together by leading-out terminal 23.The position of the first motor protecter parts 21 and the second motor protecter parts 22 can exchange.For example, when the first motor protecter parts 21 and the second motor protecter parts 22 are the motor protecter parts of same kind, can arbitrarily exchange its relative position.In addition; when the first motor protecter parts 21 and the second motor protecter parts 22 are dissimilar motor protecter; for example, when the first motor protecter parts 21 are vibration protection device and the second motor protecter parts 22 when being current protector, also can exchange its relative position.Further; when the first motor protecter parts 21 are temperature protector and the second motor protecter parts 22 when being current protector, although also can exchange its relative position, yet; in this case, preferably temperature protector is set to approach the opening of housing.When practical application, the opening of housing will with motor surface or other surperficial contacting, thereby by this surface the motor protecter parts are enclosed in the housing.Therefore, the opening that the temperature protector parts are set to approach housing helps induction machine or extraneous working temperature more accurately, thereby can improve protective value.Can adopt variety of way that the first motor protecter parts 21 and the second motor protecter parts 22 are fixed among the housing 24.As is known to the person skilled in the art; can fix the motor protecter parts by fluting, crimping, welding, bonding or the like technology, and can adopt automation to assemble to finish the motor protecter parts first motor protecter parts 21, the second motor protecter parts 22 are fixing with housing 24.
In Fig. 3, the first motor protecter parts 21 and the second motor protecter parts 22 are oriented relative to one another to 90 ° of angle settings.In this setup, can be easily the leading-out terminal of two motor protecter parts be staggered, thereby help being connected in series of two motor protecter parts.Yet above-mentioned angle is not restrictive, and the first motor protecter parts 21 and the second motor protecter parts 22 can be overlapping each other in 0 ° of angle; in addition, those skilled in the art also it is contemplated that the angle that other are suitable, for example; according to application, preferably can adopt 60 °-120 ° angle.
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 various execution modes are made up and then draw various motor protecters, and these combinations also should be regarded as having fallen 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.Yet, in one embodiment, can between the first motor protecter parts 21 and the second motor protecter parts 22 and housing 24, form cavity.For example can form cavity at 31 places, position shown in the accompanying drawing 3.Described cavity can further reduce the influence of external environment to the motor protecter parts.For example, can in the opening of housing, be formed for the inwall of fixed electrical machinery protector parts.Between this inwall and housing 24, formed cavity.The volume of the cavity that 31 places form in the position can be adjusted according to design requirement.In addition, also can design asymmetric cavity body structure.The present invention not only is confined to illustrate for example and the above-mentioned execution mode that provides, should be appreciated that the cavity that can form different shape and size between motor protecter parts and housing.Those skilled in the art can according to motor protecter will environment of applications the cavity of design different shape and size.
In another embodiment, as shown in Figure 4, in housing, use two pairs of support components 41,42 to support and fix the first and second motor protecter parts.As shown in Figure 4, a pair of first support component 41 supports the first motor protecter parts 21, and a pair of second support component 42 (only showing one of them) supports the second motor protecter parts 22.The main body of described supporting units support motor protecter parts, and it highly is suitable for making leading-out terminal to be electrically connected to outside the housing 24.
In another embodiment, as shown in Figure 4, between the first motor protecter parts 21 and the second motor protecter parts 22, be provided with division board 43.Its role is to electricity isolation and/or heat and isolate two motor protecter parts.For example; when having the motor protecter parts of temperature sensor between the first motor protecter parts 21 and the second motor protecter parts 22; by division board 43 the first motor protecter parts 21 are separated predetermined distance with the second motor protecter parts 22 and help avoid the temperature mutual interference mutually of two protector parts, and then improved the performance of motor protecter.In addition, when needed, division board 43 also can play the effect of electric insulation obviously, for example uses insulating material to make division board 43.The thickness of division board, material and size can determine according to the application-specific of protector performance requirement, protector and the thermal conductivity of institute's materials used, for example, and the material that can adopt above-mentioned housing to adopt.In the example shown in the accompanying drawing 4, two protector parts are separated mutually by division board 43.Yet, can use air simply as isolation, promptly simply the main body of two protector parts is fixed with being separated from each other.In one embodiment, when having adopted 3/4 " during the shell sizes of RBC motor protecter, the distance D 1 between two protector parts can be 0.5mm～18mm.In this case, can adopt methods such as welding, rigid line connection to make two protector parts separate and keep predetermined distance.
The first motor protecter parts 21 of motor protecter parts can change according to applied environment apart from the distance D 2 of shell nozzle.In Fig. 4, the first motor protecter parts 21 are close on the end cap.Yet, the size by selecting housing 24, the thickness of division board 43 and regulate the distance D 2 of the first motor protecter parts 21 apart from shell nozzle according to selected motor protecter parts.For example, when the first motor protecter parts 21 are the current protector parts, can be suitably away from shell nozzle, thus avoid the work of these current protector parts of heat effects of coming from the motor transmission.When the first motor protecter parts 21 are the temperature protector parts, can be suitably near shell nozzle, thus improve sensitivity and accuracy to the motor temperature induction.
The openend of end cap 51 closure casings is sealed in the motor protecter parts in the housing.The material of end cap 51 is insulating material, and it can be the above-mentioned disclosed material that is used for housing.The existence of end cap 51 can further promote the effect that the motor protecter parts are isolated from the outside.
In addition, in Fig. 5, fuse 52 is connected in series between the first motor protecter parts 21 and the second motor protecter parts 22.For example, as shown in Figure 2, connecting 25 can be fuse 52.As mentioned above, in the latter stage in useful life of protector, the problem that protector can not regular event may appear.When occurring when dangerous,, therefore exist motor and lose protection and impaired danger because protector can not regular event.Using of fuse 52 can provide protection as motor in these cases.Even protector can not regular event, fuse 52 can fusing when too high or temperature was too high when electric current, still can provide protection to motor thus.Different with the motor protecter parts, the fusing of this moment is expendable.When the user finds that motor protecter can not be resumed work, by checking fuse can determine whether it is that problem has appearred in the motor protecter parts.The fuse of various different sizes can be provided according to application here.For example, in the time of can using 50A herein less than 10 seconds fuse.Preferably, the fuse that is adopted is away from the temperature protector parts, to reduce the influence of fuse to the temperature protector parts.
Below will introduce the method for making motor protecter of the present invention.
At first, provide housing.Housing can be made by disclosed material as mentioned, also can use arbitrarily suitable material to make.Can obtain housing by methods such as molding or mold pressings.Described housing is manufactured to and the first and second motor protecter parts can be placed in one, and allows a pair of leading-out terminal to be electrically connected to outside.Leading-out terminal can be selected according to application-specific from the position that housing is electrically connected to outside the housing, for example, can extend from the bottom of housing or extends to outside the housing from the sidewall of housing.After this, the first motor protecter parts that can adopt any means will be connected with a leading-out terminal are fixed in the housing, and make leading-out terminal extend to outside the housing from the precalculated position of housing.For example, in one embodiment, in housing 33, utilize adhesive motor protecter parts.In another embodiment, as shown in Figure 4, can adopt two pairs of support components 41,42 to support and fix the first motor protecter parts, and between these motor protecter parts and housing bottom, form extra cavity.This extra cavity is suitable for holding the motor protecter of different size, and extra cavity can be provided.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 or the like.After this, the second motor protecter unit Series that will be connected with another leading-out terminal by suitable method is connected to the first motor protecter parts, and makes leading-out terminal extend to outside the housing from the precalculated position of housing.For example, can adopt multiple modes such as welding, rigid line connection, flexible cord connection, engagement.Preferably, can have 60 ° to 120 ° angle between the first and second motor protecter parts.More preferably, can the second motor protecter parts be fixed to the first motor protecter parts with 90 ° of angles.
Fig. 6 A and 6B show the motor protecter of assembling by crimping according to an embodiment of the invention.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 63 before crimping.When the opening from housing placed housing with leading-out terminal, laterally projecting 63 was forced into the flange 64 that forms in the housing.After this,, form claw-like with laterally projecting 63, the link closely flange 64 of housing of this claw by crimping curved barb end 62.When motor protecter parts and leading-out terminal are fixed together, the motor protecter parts can be fixed to housing by above-mentioned crimping step.Preferably, can be in advance the terminal of a leading-out terminal and the first motor protecter parts self be linked together, then it integrally is fixed in housing.After this, the terminal of another leading-out terminal and the second motor protecter parts self is linked together, then it integrally is fixed in the housing and the first motor protecter parts.Wherein can adopt the whole bag of tricks to carry out said fixing.For example, can leading-out terminal be fixed in the motor protecter parts by modes such as welding, riveted joint, grafting.Leading-out terminal can be fixed in housing by modes such as bonding, riveted joint, crimping.Can make the certain distance of separation between the motor protecter parts by variety of way.For example, in the embodiment shown in Figure 4, adopt the support section of two pairs of differing heights to support two protector parts, realized separation therebetween thus.Use the independently example of leading-out terminal although provided as shown in Figure 4, yet, also can omit this leading-out terminal, the terminal (shown in Figure 1B) that directly uses motor protecter parts itself is as leading-out terminal 23.For example, it may occur to persons skilled in the art that the terminal with motor protecter parts 21,22 self forms suitable shape, be used to be electrically connected to outside the housing.
By forming crimp type terminal and on housing, forming corresponding engaging structure, thus, after carrying out crimping, the crimp type terminal of motor protecter can be fixed on the housing.
In one embodiment, when one of them motor protecter is temperature protector, this protector is placed opening than the more close housing of another protector.
In addition, the distance D 1 that between the first and second motor protecter parts, can be scheduled at interval.It will be appreciated by those skilled in the art that and to pre-determine this distance according to the type of application-specific, the motor protecter parts that adopted, the factors such as size of housing.For example, adopt 3/4 " during the overall dimension of serial motors protector, this distance D 1 is preferably 0.5-18mm.Further, can use division board to isolate the described first and second motor protecter parts, thereby reduce influencing each other between two protectors.
In addition, can also realize protection thus by the fuse first and second motor protecter parts that are connected in series to the inefficacy closed mode, the specification of described fuse can be for example during 50A less than 10 seconds.
In one embodiment, can be set to the distance predetermined apart by the second motor protecter parts with the opening part of housing.Those skilled in the art can set in advance this distance according to application-specific, can make the performance of motor protecter parts reach best thus.
In other embodiments, can between the first and second motor protecter parts and housing, form one or more cavitys.Can set in advance position, shape, number and the size of this cavity according to the external environment that motor protecter will be used.For example, when needing to completely cut off external environment, the cavity more, that volume is bigger can be set.The present invention does not limit volume, shape and the method that forms cavity, 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 further make the motor protecter parts be avoided the influence of ambient temperature.In another embodiment, form enclosure space, make the motor protecter parts that are placed in one be isolated from the outside by end cap and housing.As mentioned above, the material of end cap can be selected insulating material.
Various embodiment of the present invention has more than been described.Obviously, various embodiment of the present invention can make up mutually.For example, can when being provided, end cap in cavity, fill various insulating material.In addition, depend on specific application, the distance D 1 that can between two protectors, be scheduled at interval, the while can make the predetermined at interval distance D 2 of opening of one of them protector and housing.Can form the cavity of different shape and size in housing, end cap and housing can adopt identical materials, also can use different materials respectively, and can use various dissimilar motor protecter parts.
Below will introduce the technique effect that the present invention realizes.By in housing, having made up a plurality of protector parts, can realize the kinds of protect function with a protector.For example, 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 than 3/4 " RBC reduced for example a plurality of parts such as support, hold-down screw, nut, therefore has to reduce cost.Further, motor protecter of the present invention have at least be equivalent to 3/4 " performance of RBC motor protecter, can replace 3/4 in actual applications " RBC.On the other hand, for example install, debug, in the transportation, use, the leading-out terminal of motor protecter may be subjected to the effect of external force and be out of shape, fracture etc.To this; 3/4 " terminal of RBC motor protecter the side force that can bear be approximately 3KG; and adopted the motor protecter of technical solution of the present invention; the side force of 5KG at least can be provided, and this has improved the ability that motor protecter antagonism external environment changes greatly because the fixation of housing and support component.At last; has identical size when housing being made with existing various motor protecter shells; can use motor protecter of the present invention directly to replace various motor protecters expensive, complex process simply, and need not to change the inside or the external structure of motor.For example, when housing 33 being made with 3/4 " when the housing of motor protecter has same size (for example, its diameter is 16mm-32mm), can directly use motor protecter of the present invention to replace 3/4 " the serial motors protector.Because 3/4 " the serial motors protector can not realize that assembling automatically and manufacturing cost are higher, therefore above-mentioned replacement will reduce the cost of motor protecter greatly.In addition, the housing according to motor protecter of the present invention can be manufactured and be applicable to that (for example, compressor of air conditioner) size can be applied to direct convenience various application scenarios to various motors thus.
In addition; compare with the employed baroque motor protecter of prior art, because motor protecter according to the present invention has avoided using the parts of necessary manual adjustment, so its structure is simpler; be easy to install, be suitable for the automation assembling and correspondingly improved output.
In a preferred embodiment of the invention, by using fuse the be connected in series first motor protecter parts and the second motor protecter parts, can provide protection thus for the inefficacy closed mode.On the other hand; material that can be by changing housing, increase end cap and/or set in advance the material of end cap, the distance that sets in advance motor protecter parts and shell nozzle, the position/number/size that sets in advance formed cavity and the kind that sets in advance the insulating material of being filled, the purpose of motor protecter performance is regulated in realization neatly according to applied environment.For example, when hope reduces external environment and influences, end cap can be provided, fill various insulation and thermal insulation materials etc. between protector parts and the end cap and between the protector parts.In other words, in fact the present invention can use the flexible and the lifting of the protective value of motor protecter realization cheaply, goes for various environment thus.
Can be described by interests provided by the invention and advantage about specific embodiment.These interests and advantage and may cause its generation or become more significant any parts or restriction can not be interpreted as feature key, needs or requisite of any or all claim.The term of Shi Yonging only is in order to describe specific embodiment herein, and is not intended to limit the disclosure.As using herein, unless context clearly explains in addition, otherwise singulative " ", " a kind of " 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, integral body, step, operation, parts and/or assembly, but is not existence or the adding of getting rid of one or more other features, integral body, step, operation, parts, assembly and combination thereof.The equivalent intention that corresponding structure in following claims, material, action and all devices or step add functional elements comprises any structure, material or the action that is used to carry out as the function of specific requirement and element combinations other requirements.Therefore, comprise that device, method or other embodiment of a set of pieces not only is confined to these elements, can comprise other intrinsic elements of embodiment of not listing or being stated.Provided explanation of the present invention with illustrative purposes presented for purpose of illustration, but it not exhaustive or is confined to the disclosure of disclosed form.Under the situation that does not deviate from protection scope of the present invention and spirit, those of ordinary skills will understand multiple remodeling and variation.
Although described the present invention, should be appreciated that embodiment is exemplary, and scope of the present invention is not limited to these embodiment with reference to specific embodiment.To the multiple modification of the foregoing description, modification, additional and to improve all be possible.Should expect these modification, modification, additional and improve and drop on as in the specifically described scope of the present invention of following claim.
Claims (15)
1. motor protecter comprises:
Housing with opening;
Be positioned at the first motor protecter parts and the second motor protecter parts within the described housing; the described first motor protecter parts are connected with the second motor protecter unit Series, and the terminal of the described first motor protecter parts and the second motor protecter parts is electrically connected to outside the described housing.
2. motor protecter as claimed in claim 1; the wherein said first motor protecter parts are that the thermal protector and the described second motor protecter parts that self can work alone are the current protectors that self can work alone, and the wherein said first motor protecter parts are with respect to the opening of the more close housing of the described second motor protecter parts.
3. motor protecter as claimed in claim 1 or 2, wherein said housing be shaped as cylindrical or part for cylindrical, the diameter of its bottom surface is 16mm-32mm.
4. motor protecter as claimed in claim 3, the distance at interval is 0.5mm-18mm between the wherein said first motor protecter parts and the second motor protecter parts.
5. motor protecter as claimed in claim 1 or 2 has the plate of being made by insulating material between the wherein said first motor protecter parts and the second motor protecter parts.
6. motor protecter as claimed in claim 1 or 2 further comprises fuse, and described fuse is connected in series between the described first motor protecter parts and the second motor protecter parts.
7. motor protecter as claimed in claim 2 further comprises fuse, and described fuse is away from the described first motor protecter setting.
8. motor protecter as claimed in claim 1 or 2, wherein said first motor protecter parts and second motor protecter parts angle relative to each other are 60 ° to 120 ° angle.
9. motor protecter as claimed in claim 1 further comprises end cap, and described end cap seals the opening of described housing.
10. motor protecter as claimed in claim 1 or 2 wherein forms cavity between described housing and the described first motor protecter parts and the second motor protecter parts.
11. motor protecter as claimed in claim 1, the terminal of wherein said motor protecter parts is electrically connected to outside the described housing by leading-out terminal independently.
12. motor protecter as claimed in claim 11; wherein said independently leading-out terminal has end of engagement; this end of engagement comprises hangnail end and laterally projecting portion; thereby form claw by the crooked described hangnail end of crimping with described laterally projecting portion, the described claw flange in the described housing that links closely.
13. motor protecter as claimed in claim 1, in the wherein said first and second motor protecter parts one or both comprise housing, bimetal leaf, fixed contact, moving contact and leading-out terminal at least.
14. motor protecter as claimed in claim 12, wherein said motor protecter parts are the motor protecters that can work alone.
15. a motor is characterized in that having used as any described motor protecter among the claim 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910249650.9A CN102097881B (en) | 2009-12-11 | 2009-12-11 | Motor protecter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910249650.9A CN102097881B (en) | 2009-12-11 | 2009-12-11 | Motor protecter |
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| CN102097881A true CN102097881A (en) | 2011-06-15 |
| CN102097881B CN102097881B (en) | 2015-09-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038500A (en) * | 2018-09-05 | 2018-12-18 | 赵云文 | Electric motor starting protector with double defencive functions |
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| JPH0644884A (en) * | 1992-04-24 | 1994-02-18 | Yamada Denki Seizo Kk | Thermal relay |
| 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�����˾ | Electric machine protector special for hermetically-sealed electric compressor |
| CN201122558Y (en) * | 2007-08-17 | 2008-09-24 | 森萨塔科技公司 | Temperature current protector |
| CN201663432U (en) * | 2009-12-11 | 2010-12-01 | 森萨塔科技麻省公司 | Motor protector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038500A (en) * | 2018-09-05 | 2018-12-18 | 赵云文 | Electric motor starting protector with double defencive functions |
| CN109038500B (en) * | 2018-09-05 | 2024-02-02 | 赵云文 | Motor starting protector with double protection functions |
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| CN102097881B (en) | 2015-09-30 |
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