A kind of plastic packaged motor stator structure
Technical field
The utility model is related to motor field more particularly to a kind of plastic packaged motor stator structures.
Background technology
The existing plastic package structure of direct current generator is divided to two kinds:The first stator and position sensor pcb board are integrally plastic, but due to
The influence of temperature and pressure, position sensor sensitivity decrease, reliability is significantly reduced, bad rate is higher for motor;Second
It is motor stator plastic packaging, installation site sensor pcb board later, but such structure enameled wire winding and terminal are exposed in air
In, it be easy to cause electrical machinery life reduction.
In addition, bearing galvanic corrosion is always the project and difficult point of Electrical Engineer's research.Currently used is to use contact pin
Or end cap is connected with iron core to reduce axial voltage by terminal, prevents bearing galvanic corrosion, but can not make front and back bearings potential difference
It is zero, galvanic corrosion can only be weakened, but cannot fundamentally prevent, the reliability and service life to motor is a big hidden danger.
Utility model content
The technical problems to be solved in the utility model and the technical assignment of proposition be to prior art carry out improve with
It improves, a kind of plastic packaged motor stator structure is provided, for the purpose of the reliability and service life that promote motor.For this purpose, this practicality
It is novel to take following technical scheme.
A kind of plastic packaged motor stator structure, stator include enamel-cover line winding, and enamel-cover line winding sets puncture type terminal, described
Puncture type terminal is electrically connected with conducting wire makes drive end bearing bracket, conducting wire, puncture type terminal, position sensor pcb board, rear end cap form one
Electric corrosion prevention circuit, i.e. drive end bearing bracket, matcoveredn flexible circuit conductor or be cased with insulating sleeve enameled wire, puncture type terminal, position pass
Sensor pcb board rear end cap forms a bearing electric corrosion prevention circuit, can be good at solving bearing galvanic corrosion problems, improves the whole of motor
Body performance can effectively improve motor reliability and service life.
As further improving and supplementing to above-mentioned technical proposal, the utility model further includes that following supplementary technology is special
Sign.
The enamel-cover line winding be electrically connected with fixing bracket by puncture type terminal and with stator entirety plastic packaging.But it is such
Structure enameled wire winding and terminal are ensconced in plastic packaging material, avoid aoxidizing, good integrity, effectively improve electrical machinery life, improve motor
Reliability.
Optionally, the position sensor pcb board is fixedly connected by fixing bracket with stator, and setting in stator is arranged
The side of puncture type terminal, the position sensor pcb board are fixedly connected with harness.Connection reliability.
Optionally, the enamel-cover line winding puncture type terminal connect with fixing bracket and with stator entirety plastic packaging, it is described
Stator core on be located at support bracket fastened lower section and be equipped with terminal groove for fixing puncture type terminal, the puncture type terminal
It is connect with fixing bracket and position sensor pcb board, puncture type terminal realizes that puncture type is electrically connected with lead.Electrical connection is convenient,
Assembly is easy, effectively improves the efficiency of assembly.
Optionally, the puncture type terminal includes fixed part, punctured part and interconnecting piece, the punctured part and enameled wire
Winding is fixedly connected, and the interconnecting piece is fixedly connected with fixing bracket, position sensor pcb board, the fixed part with it is fixed
Son is fixedly connected.The good reliability of puncture type terminal connection.
Optionally, the puncture type terminal fixed part is electrically connected to through groove as with lead equipped with the front and back of lower ending opening
Puncture card slot when connecing, the fixed part in the terminal groove of stator core, the fixed part it is front and back to for can shape
Become elastic construction.By the way that enamel-cover line winding or conducting wire insertion are punctured card slot, punctures card slot and puncture the external protection of lead conveniently
Realization be electrically connected with lead;It is realized by fixed part and is connected with the embedded of terminal groove.
Optionally, the fixed part is front and back to for can deformation elastic construction.By can deformation elastic construction, in fixation
It is realized and the sagittal clamping of terminal groove after being inserted into terminal groove by springing back in portion.
Optionally, the left and right sides of the fixed part is equipped with prominent, the described terminal groove of the positioning for distinguishing protrusion to the left and right
Left and right sides be equipped with the vertical guide runner that matches therewith, when realizing that fixed part is inserted into terminal groove before and after to positioning.By leading
Sliding slot and the prominent cooperation of positioning play guiding and front and back to positioning action when fixed part is inserted into terminal groove.
Optionally, it is equipped in the guide runner and the prominent lateral concave to match of positioning, the prominent outer end of left and right sides positioning
Spacing is more than the spacing between the guide runner of the left and right sides, and the positioning is prominent to be located in fixed part lower position.In fixed part
After being inserted into terminal groove in place, positions outer bullet of dashing forward and be stuck in the lateral concave of guide runner, realize the vertical fixation of puncture type terminal.
Optionally, the lower end for puncturing card slot is equipped with splay expansion notch.Expand notch to be convenient for enameled wire
Winding or conducting wire, which are directed into, to be punctured in card slot.
Optionally, gear line boss is equipped in the terminal groove, gear line boss, which extends upwardly into, to be expanded in notch, and line boss is kept off
Upper surface be located at and puncture the middle and lower part of card slot.By keep off line boss, above enamel-cover line winding or conducting wire can ensure to insert
Enter to puncture in card slot, can better ensure that puncture type terminal realizes puncture type electrical connection to enamel-cover line winding or conducting wire.
Optionally, the stator is equipped with multiple connecting poles, and the fixing bracket passes through with position sensor pcb board
Connecting pole is connected and fixed with stator.By connecting pole, on the basis of puncture type terminal connects, can more firmly realize and solid
The connection of fixed rack and position sensor pcb board.
Optionally, position sensor pcb board connection is leaded, and the lead is connect with rear end cap, described
Drive end bearing bracket is connect with conducting wire.Drive end bearing bracket, conducting wire, puncture type terminal, position sensor pcb board, lead, rear end cap, which form one, to be prevented
Galvanic corrosion circuit can be good at solving bearing galvanic corrosion problems.
Optionally, the lead is to be cased with the enameled wire of insulating sleeve or for the flexible circuit conductor equipped with protective layer.Insulated paint
The enameled wire of pipe or flexible circuit conductor equipped with protective layer not only insulate, but also have certain flexibility, convenient for connection.
Optionally, the front and rear sides of the terminal groove are equipped with lead force-bearing table, before being among the lead force-bearing table
Backward lead wire casing.When puncturing card slot by the front and rear sides of terminal groove increase lead force-bearing table, increasing lead insertion
Load area, make the insulating layer of lead be not easy to occur it is damaged.
Advantageous effect:Enamel-cover line winding be fixedly connected with fixing bracket by puncture type terminal and with stator entirety plastic packaging,
Position sensor pcb board is fixedly connected with fixing bracket, terminal and stator, can effectively improve the reliability of motor;Front end
Lid, conducting wire, puncture type terminal, position sensor pcb board, lead, rear end cap form an electric corrosion prevention circuit, can be good at solving
Certainly bearing galvanic corrosion problems improve the overall performance of motor.
Description of the drawings
Fig. 1 is the utility model stator structure schematic diagram.
Fig. 2 is the utility model puncture type terminal structural schematic diagram.
Fig. 3 is the connection diagram of the utility model puncture type terminal and terminal groove.
Fig. 4 is the utility model section structural schematic diagram.
Fig. 5 is the end of the utility model rear end cap side to schematic diagram.
In figure:1- stator cores;2- puncture type terminals;3- enamel-cover line windings;4- fixing brackets;5- position sensors PCB
Plate;6- leads;7- terminal grooves;8- harness;9- conducting wires;10- drive end bearing brackets;11- rear end caps;12- connecting poles;201- fixed parts;
202- interconnecting pieces;203- punctures card slot;204- expands notch;205- positioning is prominent;701- lateral concaves;702- keeps off line boss;
703- guide runners;704- lead force-bearing tables.
Specific implementation mode
The technical solution of the utility model is described in further detail below in conjunction with Figure of description.
As shown in Figs. 1-5, a kind of plastic packaged motor stator structure, stator include stator core 1, enamel-cover line winding 3, enameled wire
Winding 3 sets puncture type terminal 2, and puncture type terminal 2 is electrically connected with conducting wire 9 makes drive end bearing bracket 10, conducting wire 9, puncture type terminal 2, position
Sensor pcb board 5, lead 6, rear end cap 11 form an electric corrosion prevention circuit.Electric corrosion prevention circuit keeps bearing internal external circle potential difference several
It is zero, the technical program can be good at solving bearing galvanic corrosion problems, improve the overall performance of motor.
To improve the reliability of motor, extend the service life, the enamel-cover line winding 3 passes through puncture type terminal 2 and fixed branch
Frame 4 connect and with stator entirety plastic packaging.
To improve the reliability of assembly, stator front and back end is respectively equipped with drive end bearing bracket 10 and rear end cap 11, and stator core 1 is located at
The outer upside of enamel-cover line winding 3 is equipped with fixing bracket 4, and fixing bracket 4 is equipped with position sensor pcb board 5, on stator core 1
Be equipped with terminal groove 7 for fixing puncture type terminal 2 positioned at the lower section of fixing bracket 4, puncture type terminal 2 and fixing bracket 4 and
Position sensor pcb board 5 connects, and puncture type terminal 2 realizes that puncture type is electrically connected with enamel-cover line winding 3.
In order to realize that the puncture type with enamel-cover line winding 3 is electrically connected, puncture type terminal 2 includes fixed part 201 and is set to solid
Determine the interconnecting piece 202 of 201 upper end of portion, the middle and lower part of fixed part 201 be equipped with lower ending opening it is front and back to through groove as with paint
Card slot 203 is punctured when envelope curve winding 3 is electrically connected, fixed part 201 is embedded in terminal groove 7.It is pierced by the way that enamel-cover line winding 3 is embedded in
Broken card slot 203 punctures card slot 203 and punctures the external protection of enamel-cover line winding 3 and easily realizes and be electrically connected with enamel-cover line winding 3;
It is realized by fixed part 201 and is connected with the embedded of terminal groove 7.
In order to realize with before and after terminal groove 7 to clamping, fixed part 201 it is front and back to for can deformation elastic construction.Pass through
Can deformation elastic construction, fixed part 201 be inserted into terminal groove 7 after pass through spring back realize with 7 sagittal clamping of terminal groove.
For the ease of being oriented to and positioning, the left and right sides of fixed part 201 is equipped with respectively the positioning prominent 205 of protrusion to the left and right,
The left and right sides of terminal groove 7 is equipped with the vertical guide runner 703 that matches therewith, when realizing that fixed part 201 is inserted into terminal groove 7 before and after
To positioning.By the cooperation of guide runner 703 and positioning prominent 205, when fixed part 201 is inserted into terminal groove 7, guiding and front and back is played
To positioning action.
In order to realize the vertical fixation of puncture type terminal 2, it is equipped in guide runner 703 lateral recessed with prominent 205 matching of positioning
701 are fallen into, the outer end spacing of left and right sides positioning prominent 205 is more than the spacing between the guide runner 703 of the left and right sides, positioning prominent 205
The lower position in fixed part 201.After fixed part 201 is inserted into terminal groove 7 in place, positions 205 outer bullets of dashing forward and be stuck in guide runner
In 703 lateral concave 701, the vertical fixation of puncture type terminal 2 is realized.
It is punctured in card slot 203 for the ease of enamel-cover line winding 3 and conducting wire 9 are directed into, the lower end for puncturing card slot 203 is equipped with
Splay expansion notch 204.Expand notch 204 to puncture in card slot 203 convenient for being directed into enamel-cover line winding 3.
Gear line boss is equipped in order to ensure that enamel-cover line winding 3 and conducting wire 9 are inserted into puncturing in card slot 203, in terminal groove 7
702, gear line boss 702, which extends upwardly into, to be expanded in notch 204, and the upper surface of gear line boss 702 is under puncturing in card slot 203
Portion.By keep off line boss 702, above enamel-cover line winding 3 can ensure be inserted into puncture in card slot 203, can better ensure that
Puncture type terminal 2 realizes puncture type electrical connection to enamel-cover line winding 3.
In order to realize that stronger connection, stator are equipped with 3 connecting poles 12, fixing bracket 4 and position sensor pcb board
5 are connected and fixed by connecting pole 12 with stator.It, can more securely on the basis of puncture type terminal 2 connects by connecting pole 12
Realization and fixing bracket 4 and position sensor pcb board 5 connection.
In order to solve bearing galvanic corrosion problems, position sensor pcb board 5 connects leaded 6, and lead 6 is connect with rear end cap 11,
Drive end bearing bracket 10 is connect with conducting wire 9.Drive end bearing bracket 10, conducting wire 9, puncture type terminal 2, position sensor pcb board 5, lead 6, rear end cap
11 form an electric corrosion prevention circuit, can be good at solving bearing galvanic corrosion problems.
For the ease of connection, conducting wire 9 is the enameled wire for being cased with insulating sleeve.The enameled wire of insulating sleeve not only insulate, and
And have certain flexibility, convenient for connection.
In order to increase the load area of enamel-cover line winding 3 and conducting wire 9, the front and rear sides of terminal groove 7 are equipped with lead force-bearing table
704,704 centre of lead force-bearing table is sagittal lead wire casing.By increasing lead force-bearing table in the front and rear sides of terminal groove 7
704, it increases enamel-cover line winding 3 and conducting wire 9 and is inserted into load area when puncturing card slot 203, make enamel-cover line winding 3 and conducting wire 9
Insulating layer be not easy to occur it is damaged.
Before puncture type terminal 2 is installed, first enamel-cover line winding 3 and conducting wire 9 are put into the wire casing of terminal groove 7, puncture type
The fixed part 201 of terminal 2 downward, and makes to puncture card slot 203 and is directed at enamel-cover line winding 3 and conducting wire 9 toward underthrust, when underthrust, positioning
Prominent 205 alignment moves down along guide runner 703, and gear line boss 702, which stretches into, expands notch 204, blocks enamel-cover line winding 3 and conducting wire
9, it prevents enamel-cover line winding 3 and conducting wire 9 from moving down, punctures the enamel-cover layer that card slot 203 punctures enamel-cover line winding 3 and conducting wire 9, it is real
Existing puncture type terminal 2 is electrically connected with enamel-cover line winding 3, then mounting and fixing bracket 4, then carries out whole plastic packaging, and plastic packaging is completed
Afterwards, installation fixing position sets sensor pcb board 5 on fixing bracket 4;5 connecting wire 6 of position sensor pcb board and harness 8, draw
Line 6 is connect with rear end cap 11, and conducting wire 9 is connect with drive end bearing bracket 10, forms an electric corrosion prevention circuit, can be good at solving bearing electricity
Erosion problem improves the reliability and service life of motor, improves the overall performance of motor.
A kind of plastic packaged motor stator structure shown in figure 1 above -5 is specific embodiment of the utility model, has been embodied
Go out the utility model in essence feature and progress, can according to it is actual use needs, under the enlightenment of the utility model, to its into
The equivalent modifications of row shape, structure etc., the row in the protection domain of this programme.