CN101588089A - Motor - Google Patents
Motor Download PDFInfo
- Publication number
- CN101588089A CN101588089A CNA2008100532099A CN200810053209A CN101588089A CN 101588089 A CN101588089 A CN 101588089A CN A2008100532099 A CNA2008100532099 A CN A2008100532099A CN 200810053209 A CN200810053209 A CN 200810053209A CN 101588089 A CN101588089 A CN 101588089A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- pcb
- motor
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a motor comprising a stator assembly, a printed circuit board, a rotor assembly, an upper bracket, a lower bracket and a power supply splicing terminal. The stator assembly is integrally formed by a hollow stator iron core, a stator of an insulator with coils winded on the iron core and a moulding part surrounding the stator iron core and the insulator; the printed circuit board is mounted on the upper part of the stator assembly; the rotor assembly is rotatably arranged inside the stator assembly; the upper bracket and the lower bracket respectively enclose the upper part and the lower part of the stator assembly; the power supply splicing terminal is arranged on the insulator; and when the moulding part is formed, one end of the terminal exposes on the upper part of the moulding part and is electrically connected with the printed circuit board. The invention has the advantages that the motor is a stator moulded-type motor, and the printed circuit board is accurately combined with the stator assembly to prevent coils from being damaged; besides, the combining directions of the rotor assembly and the printed circuit board are different, thereby conflict therebetwwen is relieved. The motor is easy to manufacture and convenient to assemble, and can greatly improve the production efficiency.
Description
Technical field
The present invention relates to a kind of motor, particularly relate to a kind of efficient height, life-span length and the convenient micro-machine that uses.
Background technology
Usually, motor is by the electromagnetic action between stator and the rotor, makes the motor rotation, and the device of revolving force biography to the outside; The revolving force of described rotor is to drive its load by rotating shaft.
In addition, described stator generally includes stator core and the coil that is wound on described stator core; Described stator core is by insulator or roll and described coil insulation.
In said structure, described stator and rotor have at least a part to be housed in the support that forms the motor outward appearance, owing to be subjected to the variation or the vibration of external environment condition, coil might sustain damage.Simultaneously, coil or stator core also have the hidden danger of electric leakage.
In order to address the above problem, generally adopt now stator core, coil and insulator be assembled into stator after, stator is molded as an integral body, manufacture stator assembly.This for convenience of explanation motor calls stator moulded motor to this motor in the following description.
In addition, need to be provided with the control device of drive motors usually on motor, described drive unit can be arranged in the motor, also drive unit can be arranged in the product that uses motor.
This control device for the motor that is provided with printed circuit board (PCB) in the motor, needs lead and connects when being formed on substrate (printed circuit board (PCB)) and going up between the coil of molding piece inside and printed circuit board (PCB), be difficult to realize stator moulded motor.
In addition, stator moulded motor is because operation is many, and assembling is difficult, and the probability that defective products occurs can be very high.
Summary of the invention
The desired technical problem of the present invention is, overcomes the shortcoming of prior art, provides a kind of easy to manufacture, easy to assembly, the motor that can enhance productivity; Be provided with the stator moulded motor of printed circuit board (PCB) in its motor.
Another object of the present invention is to: provide a kind of and printed circuit board (PCB) can be more prone to, stable bond is at the accurate locational motor of stator assembly.
The technical solution adopted in the present invention is: motor of the present invention comprises stator assembly, printed circuit board (PCB), rotor assembly, upper bracket, lower bracket and electric power connecting terminal; Described stator assembly by the stator core of hollow, be positioned at the stator of the insulator of the coil that is used on the stator core to reel, the molded section of encircling described stator core and described insulator is integrally formed, its upper and lower is formed with the opening portion; The top of described stator assembly is equipped with described printed circuit board (PCB); Described rotor assembly comprises rotor that is positioned at described stator assembly inside and the rotating shaft that rotates with described rotor one, and described rotor assembly is rotatably provided in described stator assembly inside; Described upper bracket and lower bracket are sealed the upper and lower of described stator assembly respectively; Described electric power connecting terminal is arranged on the described insulator, and when forming described molded section, the top that an end of terminal is exposed to described molded section is electrically connected with described printed circuit board (PCB).
Described inserting terminal runs through described insulator.
The other end of described inserting terminal is positioned at the inside of described molded section.
The other end of described inserting terminal is electrically connected with described coil.
Described molded section forms by the BMC molding.
Described inserting terminal have 3 corresponding with the coil u, the v that are supplied with, each phase power supply of w.
On described printed circuit board (PCB), be provided with the terminal insertion hole corresponding with inserting terminal.
Described printed circuit board (PCB) is fixed on the described molded section in the mode that described inserting terminal is inserted in described patchhole.
This motor also includes alignment pin; Described alignment pin is arranged on the described insulator, and described alignment pin is exposed to the top of described molded section when forming described molded section, is used to locate described printed circuit board (PCB).
On described printed circuit board (PCB), be provided with the location hole corresponding with described alignment pin.
Described alignment pin has 1 or N, and N is a positive integer.
A kind of motor comprises stator assembly and rotor; Described stator assembly by the stator core of hollow, be positioned at the stator of the insulator of the coil that is used on the stator core to reel, the molded section of encircling described stator core and described insulator is integrally formed; Described rotor is rotatably provided in described stator assembly inside; It is characterized in that: this motor also includes the electric power connecting terminal; Described electric power connecting terminal is arranged on the described insulator, and when forming described molded section, the inside that an end of terminal is positioned at described molded section is electrically connected with described coil, and the other end is exposed to the top of described molded section.
This motor also includes printed circuit board (PCB); Described printed circuit board (PCB) is installed in the top of described stator assembly, and an end of described inserting terminal is electrically connected with described printed circuit board (PCB).
Described inserting terminal is selected electric conducting material for use, and runs through described insulator.
The invention has the beneficial effects as follows: the 1st, the present invention can provide and make simple, the small and exquisite motor of profile.
The 2nd, the present invention encircles stator by the molded section of insulating material, therefore can provide motor safe in utilization, easy and simple to handle.
The 3rd, the present invention is owing to accurately be combined in printed circuit board (PCB) on the stator assembly, can be when forming molded section, prevent that coil is impaired, the electrical connection motor reliable is provided simultaneously; Because inserting terminal can easily be realized the electrical connection of coil and printed circuit board (PCB), so the motor manufacturing is simpler.
The 4th, the present invention can prevent to make and use in the bad phenomenon that produces, the motor of confidence level is provided, and can prolongs the useful life of motor.
The 5th, in the process of assembling motor,, can simplify the subsequent handling of assembling motor to greatest extent owing to magnetize in the operation after, make assembling simpler.
The 6th, in the process of assembling motor,, so can reduce to install conflicting between rotor assembly and the printed circuit board (PCB) because the bonding position of rotor assembly is different with the bonding position of printed circuit board (PCB).
Description of drawings
Fig. 1 is a motor exploded perspective schematic diagram of the present invention;
Fig. 2 is the stator schematic perspective view of Fig. 1;
Fig. 3 is the schematic perspective view that the stator assembly of Fig. 1 combines with printed circuit board (PCB);
Fig. 4 is the I-I line generalized section of Fig. 2;
Fig. 5 is the floor map of Fig. 3;
Fig. 6 is the stationary part enlarged diagram of Fig. 3;
Fig. 7 is motor schematic diagram of the present invention and connector part enlarged diagram;
Fig. 8 is a motor floor map of the present invention;
Fig. 9 is motor schematic diagram of the present invention and upper bracket and molded section bound fraction enlarged diagram;
Figure 10 is a motor schematic diagram of the present invention, and upper bracket and molded section bound fraction generalized section.
Among the figure:
100: stator assembly 110: stator
113,114,115: electric power connecting terminal 117: mute inserting terminal
118: alignment pin 119: coil
130: molded section 131,132: upper and lower opening portion
200: printed circuit board (PCB) 210: conducting parts
230: connector 300: rotor assembly
310: rotor 313: rotating shaft
410,420: support 600: torsion spring
Embodiment
Below, with embodiment the present invention is described in further detail in conjunction with the accompanying drawings:
Fig. 1 is a motor exploded perspective schematic diagram of the present invention.
As shown in Figure 1, motor of the present invention comprises stator assembly 100, rotor assembly 300 and printed circuit board (PCB) 200.That is, described rotor assembly 300 rotates with respect to described stator assembly 100; Described printed circuit board (PCB) is controlled described rotor assembly 300 rotations.
Described stator assembly 100 comprises stator 110 and molded section 130; The resin material of material for insulating that described molded section is selected preferably formed by BMC (Bulk Molding compound) molding.
As shown in Figure 2, described stator 110 comprises stator core 111, insulator 112 and stator coil 119 (below be called " coil ").
Described stator core 111 is usually by the stator magnet chip, and promptly iron plate is formed by stacking (not shown), is formed with a lot of pole shoes, reels to form coil 119 on each pole shoe.To form state of insulation between described each pole shoe and the stator coil 119 easily in order making, and, to be provided with insulator 112 for the described coil 119 of reeling easily.
Described insulator 112 is inserted in the upper and lower of described stator core 111 respectively, also can be with the injection moulding of stator core 111 embeddings lining, and insulator 112 is integrally formed with stator core 111.That is, when by the injection moulding of embedding lining, when integrally formed stator core 111 and insulator 112, both form a stator assembly 100, therefore are difficult to the two to have the advantage that picks and places easily from physically separating when assembling.When insulator 112 is made with form independently, insulator 112 be combined in stator core 111 in conjunction with comparing, the latter's molded section generation type is more prone to.
As shown in Figure 2, described insulator 112 is that the embedding lining is injection-moulded on the described stator core 111, and the two is integrally formed.
In addition, coil 119 is wound on the stator core 111 by described insulator 112; Therefore, described coil 119 should have the structure that is connected with external power source.That is, a kind of structure need be set, coil coiling starting point and end point, promptly the end 121 of coil 119 is connected with external power source.
Though this has nothing to do with described coil 119 connection single phase poaer supplies or three phase mains, for convenience of explanation, existing the situation to described coil connection three phase mains describes.That is, the situation that turns on u, v, w phase power supply with described coil is an example, describes.This is the knowledge of generally using for the mode by device drive motors such as transducers, therefore omits its detailed description.As shown in Figure 2, coil on the stator 110 and u, v, w power supply connection mutually.
Motor of the present invention is particularly suitable for the motor that stator 110 is positioned at molded section 130 inside.That is, the shape of molded section 130 can be encircled described stator 110 from the outside, and described stator 110 and molded section 130 form one, become a stator assembly 100.
Part in the described molded section 130 is the motor profile; Described molded section is made of resin material, so its insulation property and water resistance are very outstanding.Simultaneously, the stator 110 that is wound with coil 119 is encircled by molded section 130, with external isolation, can effectively prevent coil damage and electric leakage.
In addition, described molded section 130 is encircled stator 110, but is not suitable for encircling in the described stator core 111 and rotor 310 face 120 in opposite directions.Because, between described 120 and rotor outer peripheral face, be formed with the space, from the angle of efficiency of motor or noise, vibration, described space will maintain less state.Thereby suitable allowing kept original state by the face 120 of die-cut formation.
Described coil 119 need be electrically connected with external power source.Motor of the present invention includes inserting terminal.Described latch can have multiple structure by the type of described coil 119 energized.Such as, when connecting u, v, w three phase mains, need 3 inserting terminals at least.
As described inserting terminal, as shown in Figure 2, the electric power connecting terminal that is electrically connected with u, v, each phase coil of w is 113,114,115.
In motor of the present invention, when stator 110 is encircled by molded section 130, be difficult to guarantee that the end portion of coil is exposed at the outside of molded section 130.Because, the intensity of coil self a little less than, coil end might be damaged when forming molded section 130, coil also may be embedded in molded section 130 inside fully.Therefore, earlier the end 121 of coil 119 is connected on the described electric power connecting terminal 113,114,115, makes described electric power connecting terminal be exposed at molded section 130 outsides and be advisable.
Described inserting terminal, particularly each electric power connecting terminal can be that metal material is made into club shaped structure.In addition, described electric power connecting terminal and insulator 112 are preferably integrally formed.That is, when making described insulator 112 by molding, described each electric power connecting terminal embedding lining makes the two form one on described insulator 112; Particularly, described each electric power connecting terminal runs through described insulator 112 and is advisable.
In the lower end of described electric power connecting terminal 113,114,115, promptly electric power connecting terminal one end is electrically connected with the end of coil 119.Specifically be, coil can be wound on an end of described electric power connecting terminal after, weld.
In addition, for an end that prevents described electric power connecting terminal is damaged with being electrically connected of coil end part, suitable molded section 130 inside that all are positioned at of an end of described each electric power connecting terminal.
As shown in Figure 4, an end of described electric power connecting terminal is with after described coil end 121 parts are electrically connected, and isolated not being exposed to the outside and being advisable by molded section 130.In addition, the upper end of described electric power connecting terminal 113,114,115, promptly the other end is advisable with the outside that is exposed to described molded section 130.Described electric power connecting terminal has full intensity, can not sustain damage when forming molded section 130 guaranteeing.
After the end 121 of described coil 119 is connected electrically in an end of electric power connecting terminal, and be positioned at molded section 130 inside, can be exposed to the outside; The other end of described electric power connecting terminal is exposed at the outside of molded section 130, is electrically connected with external power source.
As shown in Figure 3 and Figure 4, the other end of described electric power connecting terminal 113,114,115 is exposed at the outside of molded section 130, that is, and and the top of molded section 130.Be formed with opening portion 131,132 respectively in the upper and lower of described molded section 130, the molded section 130 in the described stator assembly 100 combines with printed circuit board (PCB) 200 by described opening portion 131.Certainly, by different visual angles, also can call lower opening part to the opening portion, top of described molded section 130.
The electric power connecting terminal that is exposed to described molded section 130 outsides inserts in the hole 220 on the printed circuit board (PCB).Described printed circuit board (PCB) is formed with line construction, and when described electric power connecting terminal inserted described hole 220, terminal formed between the two with the hole and is electrically connected; , also can weld both combinations for more firmly.
By combining of each hole 220 on electric power connecting terminal 113,114,115 and the printed circuit board (PCB) 200, realized combining of printed circuit board (PCB) 200 and molded section 130.
Therefore, when u, v, w go up each coil end mutually and be connected with printed circuit board (PCB) 200 respectively, need the central point of each coil formation that will described each phase to be electrically connected with described printed circuit board (PCB) 200.As required, the electric power connecting terminal can also comprise zero line electric power connecting terminal 116 in the motor of the present invention; Be that described zero line electric power connecting terminal 116 has the structure identical with other electric power connecting terminals 113,114,115, its connected mode is also identical.
Motor of the present invention also includes alignment pin 118; Described alignment pin 118 can guarantee that printed circuit board (PCB) 200 is installed in position accurately.
Usually, each control device that is used for drive motors is positioned at printed circuit board (PCB) 200; Particularly on described printed circuit board (PCB) 200, be provided with the Hall element (not shown) that the position of rotor 310 is carried out perception.Described Hall element is when permanent magnet 311 rotations of rotor 310, by the variation of the perception magnetic line of force, the position of perception rotor.That is,, motor is controlled based on the position of rotor.
Described Hall element is for the accurate position of perception rotor 310, and the relative position of itself and rotor is extremely important.In detail, it is extremely important with respect to the relative position of described stator 110 or rotor 310 to be provided with the printed circuit board (PCB) 200 of Hall element.Therefore, it is just extremely important described printed circuit board (PCB) 200 to be combined on the accurate position of described molded section 130 exactly.
Certainly, the determining positions of described printed circuit board (PCB) 200 can be combined with mute inserting terminal that the back will be narrated by aforesaid electric power connecting terminal 113,114,115,116 and realize.But when the coil that forms as shown in Figure 2, electric power connecting terminal 113,114,115 gathers in side formation, and zero line electric power connecting terminal 116 can be formed on its opposition side.At this moment, if only utilize the position of described electric power connecting terminal or mute inserting terminal decision printed circuit board (PCB), then can there be the hidden danger of error.And, when connecting by welding, also error can take place in welding process.
At first, operation such as should determine to weld behind the position of printed circuit board (PCB) earlier, for this reason, motor of the present invention also includes alignment pin 118 again; Because, just be difficult to the printed circuit board (PCB) accurate binding site of decision with respect to stator as long as after encircling the stator that comprises insulator with molded section.In order to determine the binding site of printed circuit board (PCB) 200 more exactly, stator is provided with a plurality of alignment pins 118.Can be fixed on printed circuit board (PCB) exactly on the accurate position of stator by described alignment pin 118.As shown in Figure 2, be formed with two alignment pins 118 in this embodiment; Alignment pin 118 can also play the effect that printed circuit board (PCB) 200 combines with molded section 130 in the binding site of decision printed circuit board (PCB).Described alignment pin 118 is preferably formed in the position of mutual correspondence, simultaneously also should be according to the position of the determining positions alignment pin of electric power connecting terminal.
In addition, described alignment pin 118 and described insulator 121 integrally formed being advisable.That is form described alignment pin 118 when, being preferably in formation insulator 121 simultaneously.In addition, the position corresponding with described alignment pin at described printed circuit board (PCB) is formed with location notch, because described alignment pin 118 combines with the location notch 221 or the location hole that are formed on printed circuit board (PCB), therefore, described alignment pin 118 should be exposed to described molded section 130 outsides and is advisable.
In addition, described printed circuit board (PCB) is connected with described alignment pin 118 insulation.That is, on described location notch 221, do not form circuit.Described printed circuit board (PCB) with after described alignment pin combines, carries out operations such as soldering earlier.Thereby described alignment pin and described location notch 221 brute forces are combined into suitable with inlaying.
Described molded section 130 and printed circuit board (PCB) 200 in conjunction with the time, suitable keep certain interval between the two.Because, the leg ledge of electronic component is arranged in the bottom surface of printed circuit board (PCB) 200.Therefore, on the open surface 133 that forms on the opening portion, molded section 130 top 131, be not suitable for direct fitting printed circuit board 200.
At the outward flange of described open surface 133, partly be formed with boss portion 134, be formed with when making fitting printed circuit board 200 and between the described open surface 133 at interval.
In addition, described boss portion 134 is advisable with the plane with certain area.Because, when the plane of described boss portion 134 contacts with the bottom surface generating plane of described printed circuit board (PCB) 200, can more firmly fix described printed circuit board (PCB).Described each electric power connecting terminal 113,114,115,116, and positioning convex simultaneously is formed on the described boss portion 134 and is advisable.Described molded section 130 can more stably combine with printed circuit board (PCB) 200, and its binding site also can be very accurate.
Below, with reference to Fig. 1 rotor assembly of the present invention is elaborated.
Described rotor assembly 300 comprises rotor 310 and rotating shaft 313; Described rotor 310 comprises rotor core 312.Described rotor 310 can have multiple shape, can be the permanent magnet rotor 310 that permanent magnet 311 is installed along the periphery shown in Figure 1.In addition, at the central part of described rotor core 312, be provided with rotating shaft 313; Common described rotating shaft 313 runs through described rotor core 312.
In addition, described rotor assembly 300 rotatably is formed on the inside of described stator assembly 100.Motor of the present invention can be called inner rotor type motor.At this moment, stator core 111 inside are formed with the space of configurable rotor.
In addition, rotor assembly 300 also comprises having the bearing 314 that rotatably supports described rotor assembly 300.Described bearing 314 combines with upper bracket 410 or lower bracket 420 that the back will be narrated, rotatably supports described rotor assembly.Simultaneously, described bearing 314 combines with described upper bracket 410 or lower bracket 420, prevents that described rotor assembly 300 from moving on rotating shaft 313.
Below, in conjunction with Fig. 1 motor manufacturing method of the present invention is elaborated.
The manufacture method of motor of the present invention comprises: form molded section on stator, form the 1st stage of stator assembly; On described stator assembly top, the 2nd stage of fitting printed circuit board; Seal the 3rd stage of opening portion, described stator assembly top by upper bracket; Rotor assembly is inserted into the 4th stage of described stator assembly bottom; Seal the 5th stage of described stator assembly lower opening part by lower bracket.
Before described the 4th stage, also include the stage that rotor is combined on the rotating shaft, forms rotor assembly; Between described the 3rd stage and the 4th stage, the permanent magnet that also includes to described rotor magnetizes the stage.
At first, form described stator assembly 100, rotor assembly 300 and printed circuit board (PCB) 200; Carry out the assembling of motor again.
On the top of stator assembly 100, printed circuit board (PCB) 200 is installed; That is, by the opening portion, top 131 of stator assembly 100, fitting printed circuit board 200.The size and the shape of the size of opening portion, described top 131 and shape and described printed circuit board (PCB) 200 correspond to suitable.That is, described opening portion 131 is the structures that are used in conjunction with printed circuit board (PCB), if printed circuit board (PCB) is little, then described opening portion 131 is also corresponding reduces.
In addition, be formed with through hole 250, be used to run through described rotating shaft 313 at described center than printed circuit board (PCB) 200; As long as described through hole 250 sizes guarantee can not clash and can allow bearing 314 by good with described printed circuit board (PCB) 200 when rotating shaft 313 vibrations.That is, because described rotor assembly does not pass through described printed circuit board (PCB) 200, therefore size, the particularly internal diameter of described through hole 250 are less than the size of described rotor 310.
After stator assembly 100 and printed circuit board (PCB) 200 combinations, upper bracket 410 combines with described stator assembly 100, seals opening portion, described top 131.But the sealing of indication here only is meant isolates the inside and outside of described stator assembly 100, is not the meaning that seals fully.
After mutually combining between stator assembly 100, printed circuit board (PCB) 200 and the upper bracket 410, again rotor assembly 300 is inserted the lower opening part 132 of described stator assembly 100.That is,, therefore can not conflict mutually because the direction of the direction of printed circuit board (PCB) 200 combinations and rotor assembly 300 combinations is opposite.Thereby, can prevent to damage when rotor assembly 300 from combining with stator assembly 100 printed circuit board (PCB).
After inserting rotor assembly, by the position of bearing 314 decision rotor assemblies 300, again by the lower opening part 132 of lower bracket 420 sealing stator assemblies 100.In addition, in order to prevent that rotor assembly from by moving axially, inserting E ring (E-ring) end of rotating shaft 313.
In addition, as required, the pad 510,520 that is made of elastomeric material etc. is installed on described upper bracket 410 and lower bracket 420 can be prevented in conjunction with vibration.
In the present invention, because printed circuit board (PCB) 200 is different with the bonding position of rotor assembly 300, therefore to the permanent magnet 311 of rotor 310 magnetize back, assembling motor immediately.That is, behind printed circuit board (PCB) 200 and stator assembly 100, and after permanent magnet magnetized, can be combined in rotor assembly 300 on the stator assembly 100 immediately, finish the assembling of motor.
After permanent magnet magnetized, can simplify the subsequent handling of assembling motor to greatest extent, because can prevent from advance to adhere to foreign matter etc. on the described permanent magnet 311, also can prevent the rotor assembly 300 that obtains magnetizing at permanent magnet in conjunction with the time, can damage printed circuit board (PCB) 200.
In addition, stator assembly 100 and printed circuit board (PCB) 200 carry out earlier combination than stator assembly 100 and rotor assembly 300 in conjunction with easily.Because, if, mean that then the subsequent handling behind the magnetizing increases earlier in conjunction with behind rotor assembly 300 and the stator assembly 100, again in conjunction with printed circuit board (PCB) 200; The influence of the permanent magnet 310 after owing to magnetized, breakage may appear in printed circuit board (PCB) 200, reduces operating efficiency.
Below, aforesaid mute inserting terminal 117 is elaborated.
As previously mentioned, motor of the present invention comprises the electric power connecting terminal 113,114,115,116 that is electrically connected and is connected with external power source with coil.Also comprise simultaneously and the identical mute inserting terminal 117 of described electric power connecting terminal shape.Here, mute inserting terminal 117 is connected with coil 119 insulation.Certainly, also can be electrically connected as required with coil 119.
Described mute inserting terminal 117 guarantees that with several electric power connecting terminals printed circuit board (PCB) 200 stably is combined on the stator assembly 100.
In addition, identical with described each electric power connecting terminal, described mute inserting terminal 117 also can be electrically connected with printed circuit board (PCB) 200.At this moment, described mute inserting terminal 117 makes stator core 111 ground connection.That is, be electrically connected, form ground structure by described printed circuit board (PCB) 200 and connector 230 with described stator core 111.
Below, in conjunction with Fig. 6 ground structure is elaborated.
At first, identical with other electric power connecting terminals 113,114,115,116, described mute inserting terminal 117 runs through insulator 112; An end is positioned at the inside of molded section 130 simultaneously, and the other end is exposed to the outside of molded section 130.
One end of described mute inserting terminal 117 is electrically connected with stator core 111, and this electric connection mode can have a variety of.Such as, can utilize electric wire, allow an end of electric wire be connected electrically in described mute inserting terminal 117 an end, allow the soldering of the electric wire other end on described stator core 111.
But,, torsion spring 600 can be set in order to be electrically connected more easily; The central part of described torsion spring 600 is inserted in the other end of described mute inserting terminal 117, and the two ends of torsion spring central part are extended, contacted with described stator core 111 to top.That is, under state of contact, strain takes place in the two ends of described torsion spring 600, keeps contact condition under the elastic force effect.Described torsion spring 600 is selected electric conducting material for use.
In addition, in order to allow the two ends of described torsion spring 600 more stably keep being electrically connected, on described stator core 111, be formed with insertion section 160 with stator core 111.In described insertion section 160, the two ends of inserting described torsion spring 600, can prevent effectively that described torsion spring 600 other end from described mute inserting terminal 117 when molded section 130 forms breaks away from.Certainly, the two ends of described torsion spring are inserted in after strain in the insertion section 160, can keep by elastic force to electrically contact.
In addition, break away from order to prevent torsion spring 600 better, described torsion spring 600 runs through described insertion section 160 fully, and allows the part that runs through have warp architecture.This moment no matter molded section 130 by which side of described stator 110 to formation, can both prevent that torsion spring breaks away from.
Described stator core 111 is electrically connected with described torsion spring 600 by this structure, and described torsion spring is electrically connected with described mute inserting terminal 117, therefore can form the ground structure of stator core 111.In addition, can as required an end of mute inserting terminal 117 conduction be connected on the printed circuit board (PCB) 200, form ground structure by circuit structure and the described connector 230 that is formed on printed circuit board (PCB).
Fig. 5 is the floor map of Fig. 3; Fig. 7 is motor schematic diagram of the present invention and connector part enlarged diagram; As shown in Figure 5, printed circuit board (PCB) is provided with 5 connector connecting portions 240, as shown in Figure 7, shows the connector 230 that is formed with 5 electric wire flutings 232.That is, described 5 connector connecting portions and electric wire fluting are respectively applied for formation u, v, w power supply point, zero point and earth point structure.
So motor of the present invention can easily form ground structure by mute inserting terminal 117 and connector 230.
Below, to electric machine support of the present invention, and support is elaborated with combining of molded section in conjunction with Fig. 7 to Figure 10.
At first, as shown in Figure 1, shape, the material of upper bracket 410 and lower bracket 420 are identical.That is, its big I is not quite similar by the size of opening portion, top 131 and lower opening part 132, but its shape can be identical.Thereby the combination of two stands and described molded section 130 also can be identical.
For the convenience on illustrating, below only the combination of upper bracket structure 410 with described molded section described.
In motor of the present invention, upper bracket 410 suits to form by metal material is die-cut.Upper bracket can form with a certain material die in iron plate, steel plate or the stainless-steel sheet as described.
Described upper bracket 410 covers the opening portion, top 131 of molded section 130, motor internal and external isolation.That is, the side of described motor outside and the part of end face, constitute, and the remainder of described end face is made of described upper bracket 410 by described molded section 130.Certainly, the bottom surface portions of described motor outside is made of lower bracket.
Be provided with conducting parts 210 on the top of described printed circuit board (PCB) 200.That is, with the described top surface of printed circuit board conducting parts that is provided with separated by a distance, the gap ratio of described conducting parts and described upper bracket 410 bottom surfaces is less.Certainly, in the time of increasing the spacing of conducting parts and upper bracket 410 bottom surfaces, increase the height of upper bracket 410, this time interval can strengthen, but this can cause the increase of motor whole height, can not satisfy the miniaturization requirement of motor.Thereby, after described upper bracket 410 is installed in molded section 130, should not exceed the upper end of described molded section 130, its height was identical with the height of molded section 130 upper ends after preferably upper bracket 410 was installed in molded section 130.
At the central portion of described upper bracket 410, be formed with the bearing resettlement section 450 of putting bearing 314.That is, in described bearing resettlement section 450, can place bearing 314, can support rotatably with respect to stator assembly 100 rotor assembly 300.In addition, described commentaries on classics assembly 300 moving on rotating shaft 313 directions also can be restricted.
Along with described rotor assembly 300 rotations can be vibrated, and this vibration passes to bearing resettlement section 450 by described bearing 314.Thereby described upper bracket 410 also may be vibrated, and this vibration can produce noise.Because described upper bracket 410 is to be formed by metallic sheet material, is easy to generate and trembles, make a noise.
Therefore, in the motor of the present invention, upper bracket 410 is for described vibration and noise minimization, and upper bracket preferably will have very big rigidity.Can improve rigidity by the thickness that increases described upper bracket 410, if but better by structures such as formation rib (rib) 420, the meeting of raising rigidity.When the present invention utilizes described rib 420, not only can keep, and can improve rigidity, reduce vibration and noise than light weight.In addition, by using described rib 420, can also provide heat dispersion high motor.
In addition, described rib 420 is recessed to form downwards from the end face of described upper bracket 410.Because, if rib 420 projects upwards, the whole height of motor is increased, be difficult to satisfy the miniaturization requirement of motor.If described rib 420 adopts the structure of depression, the distance between then described upper bracket 410 and the described printed circuit board top surface can only diminish.Particularly and the distance that is installed between the conducting parts 210 of described printed circuit board (PCB) 200 end faces can be littler.
Described conducting parts 210 can be source element (such as, the switch element that is used to switch), and described source element is the element that electric current is arranged, and therefore needs to remove the hidden danger of electric leakage.Thereby, conducting parts 210 need and the upper bracket 410 that forms of electric conductor between be formed with sufficient insulation distance.
Therefore, in motor of the present invention, at the privileged site of upper bracket 410 end faces, form each rib 420 to lower recess, and other positions should not be formed with rib 420.That is, 420 in described rib be formed on except that with conducting parts part in opposite directions other positions be advisable its shape and arrange and can have various deformation.Simultaneously, described rib 420 is fit to form in the lump with upper bracket 410 by punch process.
As shown in Figure 8, described rib 420 can be formed with several by radial configuration.In addition, also several ribs (not shown) can be set on the circumference of certain radius; Rib on the described circumference can form by radial direction.
To shown in Figure 10, described conducting parts 210 can be positioned on the outward flange of described printed circuit board (PCB) 200 as Fig. 7.At this moment, along the circumferencial direction of upper bracket 410, in the special angle section, described rib 420 is not set.Certainly, according to the amplitude on the circumferencial direction of described conducting parts 210, determine described special angle section accordingly.The part that does not form rib on the upper bracket 410 is called planar portions 460.
In order to ensure the insulation distance between described upper bracket 410 and the described conducting parts 210, described planar portions 460 is positioned at and described conducting parts 210 position in opposite directions; That is, when upper bracket 410 is combined in molded section 130, described planar portions 460 is positioned at and described conducting parts 210 position in opposite directions.
For this reason, in motor of the present invention,, comprise location division 231,430 in order to allow described upper bracket only on ad-hoc location, combine with described molded section 130.That is, described location division is positioned at respectively on described upper bracket 410 and the described molded section 130, makes both only by ad-hoc location, can allow described planar portions 460 combine with described conducting parts 210 position in opposite directions.
Described location division can have the shape of opening portion, described molded section top 131, and the shape of the described upper bracket 410 corresponding with this shape.For example, on described molded section 130, be formed with by outstanding one of radial direction when protruding, on the peripheral surface of upper bracket, form a groove that inserts described projection that cuts by radial direction.Described Fig. 7 illustrates described structure.Certainly, also can convex to form on upper bracket 410, groove is formed on the molded section 130 described.
In addition, motor of the present invention also includes connector 230, described connector 230 is in conjunction with being fixed on the printed circuit board (PCB) 200 of described molded section 130 inside, be used for external power source is switched to described printed circuit board (PCB) 200, one side of described connector 230 is positioned at the outside of described molded section 130, and opposite side is positioned at the inside of described molded section 130.For this reason, as Fig. 3 and shown in Figure 5, on the top of described molded section 130, be formed with the connector joint portion 135 that combines with connector 230 and be advisable, described connector joint portion 135 can form by a part of cutting molded section 130 tops.The shaped upper part of the shaped upper part of described connector 230 and molded section 130, the molded section 130 outer angular shapes that particularly form the opening portion are preferably identical.
In addition, described location division 231,430 can be formed on the described connector 230 rather than on the molded section 130.Because described location division is the structure that allows top and the upper bracket of molded section 130 only combine by ad-hoc location, so the operator need know its ad-hoc location in advance so that assembling more easily.In detail, in assembling process, be not easy to know the ad-hoc location on molded section top though know the ad-hoc location (such as by described planar portions or groove etc.) of upper bracket 410 easily.
If described location division is set, then can easily know the ad-hoc location on molded section top by connector 230 on connector 230.
Below, in conjunction with Fig. 9 and Figure 10 the combination of molded section 130 and upper bracket 410 is elaborated.
On the top of motor molded section 130 of the present invention, be formed with opening portion, aforesaid top 131.That is, stator assembly 100 is installed in opening portion, described top 131, its inside and outside connection.Described upper bracket 410 sealing opening portions, described top 131.Above-mentioned part is identical with common motor, and described upper bracket 410 brute forces are pressed in the opening portion 131 of described molded section 130.But, between molded section 130 and upper bracket 410, might have water saturates and come in by described opening portion 131; For soaking into of anti-sealing, need between molded section 130 and upper bracket 410, waterproof construction be set.
For this reason, in motor of the present invention, it is different mutually that the opening portion, top 131 of molded section 130 has internal diameter, forms inboard inwall 136, outside inwall 137 and the planar portions 138 of step each other.Described planar portions 138 is connected the top of described molded section 130.That is, the upper end of outside inwall 137 is higher than the upper end of described inboard inwall 136.Thereby the part of described planar portions 138 is formed by the upper end of inboard inwall 136.
Described upper bracket 410 covers opening portion, described top 131, and its shape and opening portion 131, described top are suitable; When opening portion, top 131 had circular configuration as described, described upper bracket 410 also had circular configuration.
The external diameter of described upper bracket 410 is preferably less than opening portion 131 outside inwall internal diameters of molded section 130.Certainly, the external diameter of described upper bracket 410 is greater than the internal diameter of molded section 130 opening portions 131 inboard inwalls.
End 441 on described upper bracket 410 radial directions, its part are installed on the described planar portions 138; Because the external diameter of described upper bracket 410 less than the internal diameter of described outside inwall 137, therefore, forms the gap d of a determining deviation between end 441 on described support 410 radial directions and described outside inwall; Can application resin piece (not shown) on described gap d.
Described resin piece can also prevent that moisture is impregnated into motor internal by described gap d when linking described molded section 130 and described support 410.Therefore, as long as can prevent that moisture from entering motor internal, resin piece can have multiple choices, as, can be with epoxy resin or silica gel material.
In addition, for the enough resins of application in described gap d,, preferably be formed with groove 139 along circumferencial direction in the exterior angle of described planar portions 138 part.That is, can pass through described groove 139, by the size greater than described support 410 thickness, the described resin piece of application.Thereby, can be corresponding to the degree of depth and the width of described groove 139, the application resin can improve water resistance and binding ability fully.Groove 139 can also prevent that resin is excessive, influences the problem of outward appearance or joint portion quality.
As shown in figure 10, the width of described groove 139 is more preferably greater than the width in described gap; Because described groove 139 its width that are formed on described gap d part downside are greater than described gap, then described resin not only is coated with the thickness part that is contained in described support 410 radial direction ends 441 but also can be coated with the certain position that is contained in the bottom surface.Thereby, can increase the contact area of resin piece and described upper bracket 410 or opening portion, described top 131, can further improve water resistance and binding ability.
In addition, in motor of the present invention, on molded section 130, not only be formed with opening portion, top 131, can also form lower opening part 132.The combined structure of described lower opening part 132 and lower bracket 420 can be identical with the combined structure of opening portion, top 131 with upper bracket 410 recited above.But, if lower bracket is not soaked into the possibility of moisture, then need not be necessarily identical with aforementioned structure.Certainly, if there is the possibility of soaking into moisture in lower bracket 420, then said structure can be applied in the combination of lower bracket 420.
Motor of the present invention opening portion 131,132 and support 410,420 can also comprise powerful mosaic texture or powerful pressing structure (below, the convenience on illustrating is called " mechanicalness combined structure ") when comprising described waterproof construction.That is, described rack mechanical be combined in the opening portion, carry out resin piece application recited above again.
This mechanicalness combined structure can allow described gap d be formed uniformly along the circumferencial direction of support, prevents that support from moving simultaneously when the application resin piece.
Described mechanicalness combined structure can be by being inserted in described inboard inwall 136, and the joggling part 440 that is inserted in described inboard inwall 136 forms.Described joggling part 440 can be from terminal inboard, the formation of warpage downwards on described support 410,420 radial directions.That is, described joggling part 440 is inserted in the described inboard inwall 136, tentatively support is fixed on the molded section 130.
Described joggling part 440 forms along the circumferencial direction of described support 410,420, can also further improve the rigidity of described support.
Claims (14)
1. a motor comprises stator assembly (100), printed circuit board (PCB) (200), rotor assembly (300), upper bracket (410) and lower bracket (420); Described stator assembly (100) by the stator core (111) of hollow, be positioned at the stator (110) of the insulator of the coil (119) that is used on the stator core (111) to reel, the molded section (130) of encircling described stator core (111) and described insulator (112) is integrally formed, and its upper and lower is formed with the opening portion; The top of described stator assembly is equipped with described printed circuit board (PCB) (200); Described rotor assembly (300) comprises the rotating shaft (313) that is positioned at the inner rotor (310) of described stator assembly (100) and rotates with described rotor (310) one, and described rotor assembly (300) is rotatably provided in described stator assembly (100) inside; Described upper bracket (410) and lower bracket (420) are sealed the upper and lower of described stator assembly (100) respectively; It is characterized in that: this motor also includes the electric power connecting terminal; Described electric power connecting terminal is arranged on the described insulator (112), and when forming described molded section (130), the top that an end of terminal is exposed to described molded section (130) is electrically connected with described printed circuit board (PCB) (200).
2. motor according to claim 1 is characterized in that: described inserting terminal runs through described insulator (112).
3. motor according to claim 1 and 2 is characterized in that: the other end of described inserting terminal is positioned at the inside of described molded section (130).
4. motor according to claim 3 is characterized in that: the other end of described inserting terminal is electrically connected with described coil (119).
5. motor according to claim 1 is characterized in that: described molded section (130) forms by the BMC molding.
6. motor according to claim 1 is characterized in that: described inserting terminal have 3 corresponding with the coil u, the v that are supplied with, each phase power supply of w.
7. motor according to claim 1 is characterized in that: on described printed circuit board (PCB) (200), be provided with the terminal insertion hole corresponding with inserting terminal (220).
8. motor according to claim 7 is characterized in that: described printed circuit board (PCB) (200) is fixed on the described molded section (130) in the mode that described inserting terminal is inserted in described patchhole.
9. motor according to claim 8 is characterized in that: this motor also includes alignment pin (118); Described alignment pin (118) is arranged on the described insulator (112), and described alignment pin (118) is exposed to the top of described molded section (130) when forming described molded section (130), is used to locate described printed circuit board (PCB) (200).
10. motor according to claim 9 is characterized in that: on described printed circuit board (PCB) (200), be provided with the location hole corresponding with described alignment pin (221).
11. motor according to claim 10 is characterized in that: described alignment pin has 1 or N, and N is a positive integer.
12. a motor comprises stator assembly (100) and rotor (310); Described stator assembly (100) by the stator core (111) of hollow, be positioned at the stator (110) of the insulator of the coil (119) that is used on the stator core (111) to reel, the molded section (130) of encircling described stator core (111) and described insulator (112) is integrally formed; Described rotor (310) is rotatably provided in described stator assembly (100) inside; It is characterized in that: this motor also includes the electric power connecting terminal; Described electric power connecting terminal is arranged on the described insulator (112), when forming described molded section (130), the inside that one end of terminal is positioned at described molded section (130) is electrically connected with described coil (119), and the other end is exposed to the top of described molded section (130).
13. motor according to claim 12 is characterized in that: this motor also includes printed circuit board (PCB) (200); Described printed circuit board (PCB) (200) is installed in the top of described stator assembly (100), and an end of described inserting terminal is electrically connected with described printed circuit board (PCB) (200).
14. according to claim 12 or 13 described motors, it is characterized in that: described inserting terminal is selected electric conducting material for use, and runs through described insulator (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100532099A CN101588089B (en) | 2008-05-23 | 2008-05-23 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100532099A CN101588089B (en) | 2008-05-23 | 2008-05-23 | Motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101588089A true CN101588089A (en) | 2009-11-25 |
| CN101588089B CN101588089B (en) | 2013-02-06 |
Family
ID=41372205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100532099A Expired - Fee Related CN101588089B (en) | 2008-05-23 | 2008-05-23 | Motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101588089B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130043742A1 (en) * | 2011-08-18 | 2013-02-21 | Jung Cheol JANG | Motor |
| CN105790454A (en) * | 2016-05-14 | 2016-07-20 | 浙江琦星电子有限公司 | Sewing machine motor and integral sewing machine electric control device |
| CN106877543A (en) * | 2017-04-28 | 2017-06-20 | 广东威灵电机制造有限公司 | Stator insulation framework, stator module and motor |
| CN107040071A (en) * | 2017-04-28 | 2017-08-11 | 广东威灵电机制造有限公司 | Stator insulation framework, stator module and motor |
| CN107240967A (en) * | 2016-03-28 | 2017-10-10 | 德昌电机(深圳)有限公司 | motor and its stator |
| CN107508391A (en) * | 2016-06-14 | 2017-12-22 | 德昌电机(深圳)有限公司 | Brshless DC motor, stator component and its method for winding |
| CN111903036A (en) * | 2018-04-09 | 2020-11-06 | 三菱电机株式会社 | Rotating electrical machine |
| WO2021185131A1 (en) * | 2020-03-16 | 2021-09-23 | 浙江三花汽车零部件有限公司 | Electric pump |
| CN113558499A (en) * | 2021-08-24 | 2021-10-29 | 湘潭大学 | Isolated easy-to-clean food crusher and using method thereof |
| CN113949191A (en) * | 2021-10-25 | 2022-01-18 | 珠海格力电器股份有限公司 | Stator skeleton subassembly, stator and motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101316144B1 (en) | 2012-06-11 | 2013-10-08 | 뉴모텍(주) | Motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007014147A (en) * | 2005-06-30 | 2007-01-18 | Fujitsu General Ltd | Electric motor |
-
2008
- 2008-05-23 CN CN2008100532099A patent/CN101588089B/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8674569B2 (en) * | 2011-08-18 | 2014-03-18 | New Motech Co., Ltd. | Motor having pin guide for fixing mag mate terminals and method for manufacturing the same |
| US20130043742A1 (en) * | 2011-08-18 | 2013-02-21 | Jung Cheol JANG | Motor |
| CN107240967B (en) * | 2016-03-28 | 2020-11-24 | 德昌电机(深圳)有限公司 | Motor and stator thereof |
| CN107240967A (en) * | 2016-03-28 | 2017-10-10 | 德昌电机(深圳)有限公司 | motor and its stator |
| CN105790454A (en) * | 2016-05-14 | 2016-07-20 | 浙江琦星电子有限公司 | Sewing machine motor and integral sewing machine electric control device |
| CN107508391A (en) * | 2016-06-14 | 2017-12-22 | 德昌电机(深圳)有限公司 | Brshless DC motor, stator component and its method for winding |
| CN106877543A (en) * | 2017-04-28 | 2017-06-20 | 广东威灵电机制造有限公司 | Stator insulation framework, stator module and motor |
| CN107040071A (en) * | 2017-04-28 | 2017-08-11 | 广东威灵电机制造有限公司 | Stator insulation framework, stator module and motor |
| CN106877543B (en) * | 2017-04-28 | 2024-02-09 | 广东威灵电机制造有限公司 | Stator insulating frame, stator assembly and motor |
| CN107040071B (en) * | 2017-04-28 | 2024-03-19 | 广东威灵电机制造有限公司 | Stator insulating frame, stator assembly and motor |
| CN111903036A (en) * | 2018-04-09 | 2020-11-06 | 三菱电机株式会社 | Rotating electrical machine |
| CN111903036B (en) * | 2018-04-09 | 2022-12-27 | 三菱电机株式会社 | Rotating electrical machine |
| WO2021185131A1 (en) * | 2020-03-16 | 2021-09-23 | 浙江三花汽车零部件有限公司 | Electric pump |
| CN113558499A (en) * | 2021-08-24 | 2021-10-29 | 湘潭大学 | Isolated easy-to-clean food crusher and using method thereof |
| CN113949191A (en) * | 2021-10-25 | 2022-01-18 | 珠海格力电器股份有限公司 | Stator skeleton subassembly, stator and motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101588089B (en) | 2013-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101588089B (en) | Motor | |
| CN101588100B (en) | Motor | |
| US8816542B2 (en) | Slim type stator and method of making the same, slim type motor having the stator, and direct drive apparatus for drum-washing machine | |
| CN203660685U (en) | Actuator assembly | |
| US8324767B2 (en) | Structure including spindle motor and printed circuit board | |
| JP2013051749A (en) | Vr type resolver | |
| JP7033810B2 (en) | Permanent magnet micromotor with brush and its assembly method | |
| JP2008005588A (en) | Brushless motor | |
| KR100883599B1 (en) | motor | |
| KR20080101693A (en) | Thin stator and axial air-gap brushless vibration motor equipped with the same | |
| CN101588096B (en) | Motor | |
| WO2020000667A1 (en) | Stator structure of motor, stator assembly structure, and motor | |
| KR101697704B1 (en) | Stator apparatus for brushless motor | |
| KR100883597B1 (en) | motor | |
| US6998743B2 (en) | Stator incorporating drive circuit and axial-gap brushless motor comprising same stator | |
| CN101588088A (en) | Motor | |
| WO2016051481A1 (en) | Rotating electrical machine and method for producing rotating electrical machine | |
| CN101572459A (en) | Motor | |
| CN101588095B (en) | Motor | |
| KR100883595B1 (en) | motor | |
| KR100883596B1 (en) | motor | |
| US9306435B2 (en) | Stator assembly for motor with hall sensor bracket | |
| KR100883598B1 (en) | motor | |
| WO2020000698A1 (en) | Rotor structure of motor, and motor | |
| KR100431056B1 (en) | Single vibration motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20210523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |