[summary of the invention]
Main purpose of the present invention is to provide a kind of motor simple in structure, stable performance to reach the mount pad that is used for this motor.
For achieving the above object, the present invention can adopt following technical scheme: a kind of motor, it comprises stator, be wound in winding on the described stator, be installed on insulating case on the described stator, be assembled in described insulating case mount pad, be contained in the monitor in the described mount pad, described motor also has and supports described monitor and make described monitor and the contacted elastic component of described winding.
For achieving the above object, the present invention also can adopt following technical scheme: a kind of mount pad for motor, it comprises main part, is positioned at described main part and is used for accommodating the host cavity of a monitor and is positioned at described host cavity reinforced wall on every side, and described main part also has from the outward extending elastic arm of described host cavity.
Compared with prior art, the beneficial effect of motor of the present invention is: motor can make monitor well contact with winding by elastic component, electric machine structure is simple, stable performance, moreover, motor at the winding of differing heights, can use same supervising device, monitor is well contacted with winding.
[embodiment]
Please refer to 1 to Fig. 4, first embodiment of the invention is a kind of motor 100, it is a kind of out-phase alternating current machine, comprise stator 1, be wound in winding 2 on the described stator 1, be positioned at stator 1 inside rotor (not shown), be installed on insulating case 3 on the stator 1, be positioned at monitor 4 on the winding 2 and the mount pad 5 of stationary monitoring device 4.
As shown in Figure 1 to Figure 3, stator 1 comprises tooth portion 11 and is installed on the yoke portion 12 of tooth portion 11 peripheries.Stator 1 is cylindrical, has a stator axis (not indicating).Tooth portion 11 monolithic constructions, the connecting portion 116 that it comprises some teeth and connects some teeth, described tooth is made of with straight-tooth 115 crooked tooth 114, and crooked tooth 114 is alternately arranged with straight-tooth 115 and is circular and is enclosed to form a centre bore 13.Be formed between the adjacent teeth coiling winding 2 around groove 113.The crooked tooth 114 of straight-tooth 115 both sides is mirror status, and two crooked teeth 114 are arranged in opposite directions.In other embodiments, tooth portion 11 can be split-type structural, and both are connected with it not have connecting portion 116 between crooked tooth 114 and the straight-tooth 115, and forms the groove that is communicated with centre bore 13 and yoke portion 12.The outermost end of tooth portion 11 has the mounting blocks 117 that is contained in the yoke portion 12.
The integral structure that yoke portion 12 forms by punching press, yoke portion 12 roughly is circular ring structure, and chart mask has the mounting groove 121 of accommodating mounting blocks 117 in it, and after mounting blocks 117 was installed on mounting groove 121, interfixing between yoke portion 12 and the tooth portion 11 cooperated.
Winding 2 is wound on respectively on the insulating case 3 by some enamelled wires and forms.
As shown in Figure 2, insulating case 3 is the plastic parts of insulation, and it comprises that cover 31 reaches with last cover 31 matches and traps 32.See that from the stator axis direction insulating case 3 is roughly a circular configuration, the axis coinciding of its axle center and stator 1.Last cover 31 32 is used for coating tooth portion 11 from the both sides end face stator 1 that is installed in opposite directions of stator 1 respectively with trapping.Insulating case 3 go up that cover 31 has first body 311, some first extensions 312 of extending downwards from first body 311 and first baffle plate 313 that extends upward and keep at a certain distance away with first extension 312 from first body 311.First extension 312 has first accepting groove for a part of tooth of coating portion 11, and first accepting groove is towards the radial direction opening of tooth portion 11 directions and axis stator.Trap 32 have second body 321, from upwardly extending some second extensions 322 of second body 321 and the second baffle 323 that extends downwards and keep at a certain distance away with second extension 322 from second body 321.Second extension 322 has for coating another part tooth portion 11 second accepting grooves, and second accepting groove is towards the radial direction opening of tooth portion 11 directions and axis stator.First extension 312 and second extension 322 constitute the extension of insulating case 3, and first accepting groove and second accepting groove are formed accepting groove.When second extension, 322 parts are contained in first accepting groove of first extension 312, last cover 31 with trap 32 both be connected together mutually, the tooth portion 11 that is used for coiling winding 2 is coated in the accepting groove, makes insulating case 3 coating tooth portions 1 and makes the winding 2 that is wound in the tooth portion 11 isolated with stator 1.Mounting blocks 117 and the yoke portion 12 of the tooth portion 11 of stator 1 is positioned at the outside of first baffle plate 312, second baffle 323.First baffle plate 312 and second baffle 323 can be used as the baffle plate of insulating case 3.First body 311 and second body 321 are as the body of insulating case 3, and insulating case 3 is between mounting blocks 117 and rotor.The centre is positioned at the both sides of extension, and baffle plate extends towards two ends along the axis stator direction from the both sides end face of the tooth portion 11 of stator 1, is used for avoiding winding 2 to contact with the parts of rotor.Certainly, in other embodiments, insulating case 3 can take shape on the stator 1 directly as an overall structure.
Insulating case 3 also has some installation bases 351, some installation bases 351 are positioned at the outer surface of baffle plate, each installation base 351 is accommodated an end of contact pin 352, and the other end of contact pin 352 exposes to boss 352, and contact pin 352 extends along the axis direction that is parallel to stator.Insulating case 3 also has clamping part 365, and clamping part 365 extends along the axis direction that is parallel to stator.Boss 352 and clamping part 365 are positioned at the same side of extension.
Monitor 4 is used for the working condition of monitoring or protection motor 100, can monitor, protect motor 100 overtensions, electric current is excessive or the high excessively situation that is unfavorable for motor 100 work of temperature.In the present embodiment; monitor 4 is used for monitoring, the too high situation of protection motor 100 temperature, and monitor 4 is a kind of thermal sensor of responding to the temperature of winding 2, when the temperature of sensing its place when monitor 4 is higher than set point; monitor 4 automatic disconnections, the also automatic disconnection of connected circuit.Monitor 4 has the lead 41 that connects contact pin 352.
In conjunction with as shown in Figure 4, the mount pad 5 of first embodiment of the invention motor 100 is the insulation material, and it comprises main part 51 and is assembled in docking section 52 on the main part 51.Docking section 52 can also be integral molding on main part 51, perhaps as a whole with main part 51.Docking section 52 has for a plurality of docking ports 521 of butt joint one external connector (not shown) and for the draw-in groove 522 that is connected in clamping part 365.Main part 51 comprises the some through holes 511 that run through its upper and lower surface, and through hole 511 is used for accommodating installation base 351 and contact pin 352.Installation base 351 matches with through hole 511, can play fixation to main part 51.Contact pin 352 is positioned at the through hole 511 of main part 51.Main part 51 also has be used to the host cavity 512 of accommodating monitor 4, host cavity 512 has the reinforced wall 513 for 4 displacements of restriction monitor, the lower surface of reinforced wall 513 autonomous bodies 51 extension downwards forms, and host cavity 512 can be arranged to corresponding structure according to the contour structures of monitor 4.In the present embodiment, host cavity 512 forms for reinforced wall 513 encloses, and in other embodiments, host cavity 512 also can upwards cave in for the lower surface of autonomous agent portion 51 and form the side surface restriction monitor 4 of host cavity 512.Be positioned at host cavity 512, at least one elastic arm 514 extends downwards from the bottom of host cavity 512.In the present embodiment, a pair of lower surface in opposite directions and autonomous body 51 is set is tilted to down the elastic arm 514 that extends.Elastic arm 514 of the present invention is not limited to the elastic arm 514 with main part 51 integral structures, and elastic arm 514 also can substitute by being installed on mount pad 5 structural members with bouncing function interior or below.The present invention is referred to as elastic component to elastic arm 514 and elastic structure.That is to say that elastic component can be the part of mount pad 5, for forming the elastic arm 514 of one with mount pad 5, elastic component can be split type with monitor 4 also, and elastic component is installed between mount pad 5 and the described monitor 4.
In mount pad 5, also have be shaped in main part 51 in sheet metal 6, metalwork 6 respectively be connected with contact pin 352 and be connected with the lead 41 of monitor 4.Mount pad 5, sheet metal 6 are referred to as supervising device with monitor 4.
During installation, the Access Division 365 of the draw-in groove 522 clamping insulating cases 3 in the mount pad 5 is fixed in mount pad 5 on the insulating case 3.The lower surface of monitor 4 contacts with the surface of winding 3, and the upper surface of monitor 4 is subjected to elastic arm 514 extruding, guarantees to have stable contact point between monitor 4 and the winding 3, and elastic arm 514 has limited monitor 4 displacements with host cavity 512 simultaneously.
Because in different motors, the height that is positioned at the winding 2 of stator 1 both sides may be different, if by elastic arm 514 of the present invention, identical monitor 4 is applied in the different motors, identical monitoring device, identical mount pad 5 are applied in the different motors, guaranteed that simultaneously monitor 4 well contacts with winding 2.Well solved and used the mount pad 5 of a plurality of models to apply in the motor of differing heights winding 2 in the prior art, well saved the cost of making motor, mount pad 5.
To shown in Figure 7, in second embodiment of the invention, the stator 1 of the stator in the motor 200, winding and insulating case and motor 100, winding 2 and insulating case 3 are roughly the same as Fig. 5, in this not narration one by one.Motor 200 has a mount pad 7, the structure of mount pad 7 is simple relatively, mount pad 7 have main part 70 and be positioned on the main part 70 and according to the host cavity 71 of the profile setting of monitor 4, be positioned at around the host cavity 71 and be used for the reinforced wall 72 of restriction monitor 4 displacements and be used for the grab 73 of fixed mounting 7.Mount pad 7 also has the elastic arm 74 that is positioned at host cavity 71, and in monitor 4 is contained in the host cavity 71 of mount pad 7, and when being assembled on the insulating case 3, elastic arm 74 can guarantee that monitor 4 well contacts with winding 2.
Motor 200 comprises the circuit board 8 that electrically connects with monitor 4, and mount pad 7, printed circuit board (PCB) 8 are referred to as supervising device with monitor 4.Circuit board 8 has the body 81 that fixes with mount pad 7 and is positioned at conducting strip 82 on the body 81.Body 81 has some holding holes 811, and the grab 7 of mount pad 7, the clamping part 365 of insulating case 3 are contained in holding hole 811, makes insulating case 3, mount pad 7, circuit board 8 fixed with each other.Also have in the conducting strip 82 for accommodating contact pin 352, lead 41 welding holes 821 respectively.Contact pin 352 passes welding hole 821 with lead 41 and welds mutually with conducting strip.Equally, the elastic arm 74 of present embodiment can well make monitor 4 contact with differing heights winding 2.