CN202840891U - Motor structure bearing high overload - Google Patents
Motor structure bearing high overload Download PDFInfo
- Publication number
- CN202840891U CN202840891U CN 201220496032 CN201220496032U CN202840891U CN 202840891 U CN202840891 U CN 202840891U CN 201220496032 CN201220496032 CN 201220496032 CN 201220496032 U CN201220496032 U CN 201220496032U CN 202840891 U CN202840891 U CN 202840891U
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- Prior art keywords
- assembly
- brush box
- brush
- electric capacity
- plastic stent
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Abstract
The utility model discloses a motor structure bearing high overload, which comprises a plastic bracket assembly, an end cover assembly, a rotor assembly, a shell and a radiating outer cover, wherein the plastic bracket assembly comprises a plastic bracket, brush box assemblies, capacitors, torsion springs and external terminals; the brush box assembly comprises a brush box, a carbon brush and a brush box bottom plate; the plastic bracket assembly is of a four-pole four-carbon brush structure; the brush box assembly is assembled in the direction toward the end cover assembly, and a plastic bracket assembly reverse assembly structure is formed; four brush box bottom plate mounting positions are uniformly arranged outside the plastic bracket; the brush boxes and the brush box bottom plates are inserted into and riveted with the plastic bracket; the motor structure further comprises two connecting pieces which are connected with the brush box bottom plates in a spot welding manner; and the capacitor is arranged outside and between two brush boxes. According to the utility model, the plastic bracket adopts a four-pole four-carbon brush structure, thereby reducing the current density; a overall reverse assembling mode is adopted, thereby ensuring the capacitors to be able to bear high vibration; and the brush box bottom plates are connected by using the connecting pieces, thereby simplifying the process, and reducing the size of a motor.
Description
Technical field
The utility model is a kind of motor configuration, and particularly a kind of motor configuration that bears high overload belongs to the motor part technical field.
Background technology
Conventional permanent magnet dc motor can only bear the electric current of maximum 30A, and when electric current reached 50A～60A, motor just easily burnt, conventional motor configuration such as Fig. 1-1 are to shown in Figure 2, motor is two utmost points, two carbon brush brush rocker structures, and carbon brush is connected with terminal by brush holder, and is fixed on the plastic stent; Electric capacity is placed on the inner face of plastic stent, and an end electric capacity pin of electric capacity is connected with terminal, and other end electric capacity pin is connected with casing; The commutator of rotor assembly is little, and the carbon brush sectional area is little, causes current density high.This mode is fit to low current, low-power motor.Its advantage is simple in structure, and cost is lower.Shortcoming is that to bear electric current little, and overload capacity is little, and when large electric current, brush holder easily produces the annealing phenomenon and lost its bounce or fracture because current density is large; Electric capacity electric capacity pin in the strong vibration environment easily ruptures, and electric capacity can fall into motor internal, causes motor stuck and lost efficacy.
The utility model content
The purpose of this utility model is in the above-mentioned existing permanent magnet dc motor, bear that electric current is little, brush holder easily produces annealing and lost its bounce or fracture because current density is large, electric capacity electric capacity pin in the strong vibration environment easily ruptures and electric capacity can be fallen into the defective of motor internal, a kind of motor configuration that bears high overload is provided, can reach that motor bears that electric current is large, brush holder can lost its bounce or fracture, easy fracture and electric capacity can not fallen into the purpose of motor internal to electric capacity in the strong vibration environment.
The technical scheme taked of the utility model is to achieve these goals: a kind of motor configuration that bears high overload comprises plastic stent assembly, end-cap assembly, rotor assembly, casing and heat radiation outer cover; Described plastic stent assembly comprises plastic stent, brush box assembly, electric capacity, torsion spring and external terminal, and described brush box assembly comprises brush box, carbon brush and brush box bottom board, described carbon brush and brush box crimping, and described torsion spring is arranged on by the brush box; Described plastic stent assembly is four utmost points, four carbon brush structures, and 2 N utmost points and 2 S utmost points are oppositely arranged respectively, forms the heteropole brush box; The brush box assembly is towards the direction assembling of end-cap assembly; Described plastic stent outside, evenly be provided with 4 brush box bottom board installation sites up and down; Brush box and brush box bottom board and plastic stent are pegged graft and riveting;
Be provided with 4 duckpins on the inner face of plastic stent; Also comprise 2 braces, be provided with 2 connecting holes on each brace, each brace is fixedly connected with plastic stent with 2 duckpins by its 2 connecting holes, and each brace is connected with brush box bottom board spot welding;
Described electric capacity is arranged on the outside of plastic stent, is provided with electric capacity pin grafting slotted eye A, B on the plastic stent edge of described electric capacity both sides; Described electric capacity comprises electric capacity pin A, B, and described electric capacity pin A is through among the electric capacity pin grafting slotted eye A, leads to the inner face of plastic stent downwards, towards motor direction and brace pressure injection again, and is connected in the circuit; Described electric capacity pin B is through among the electric capacity pin grafting slotted eye B, and draws to the inner face of plastic stent.
The width of described brace is that 2mm, thickness are 0.8mm.
Described electric capacity pin B is after other electric capacity pin grafting slotted eye B draws, again by the sulculus on the plastic stent, until the cylindrical of plastic stent can be connected with casing when assembling plastic stent assembly.
Described external terminal and the perpendicular plane of rotor assembly on, oblique grafting and being riveted on two plastic stents between the brush box.
Commutator brush track diameter in the described rotor assembly is 18mm.
Described carbon brush area of section is 36 square millimeters.
Be fixedly installed a heat radiation outer cover on the described casing.
Compared with prior art, the beneficial effects of the utility model are:
(1) the plastic stent assembly adopts four utmost points, four carbon brush structures, continued the characteristics that motor can bear high electric current, and on this basis, increased commutator brush track diameter, be increased to 18mm by 15mm, increase the carbon brush sectional area, be increased to 36 square millimeters by 30 square millimeters, reduced current density; When motor passes through large electric current, because the carbon brush current density reduces, so generating heat, carbon brush reduced significantly too, so that motor can bear higher electric current.
(2) the plastic stent assembly adopts integral inverted to the assembling mode, makes electric capacity towards the assembling of end cap direction, can guarantee that electric capacity can bear the high vibration environment of motor, even the electric capacity fracture can not fallen into motor internal yet, has avoided causing the stuck and situation about losing efficacy of motor.
(3) in four utmost points, four carbon brush structures, brush box bottom board adopts certain thickness to be connected brace with width to connect, need not to use the wire mode to connect, avoided using the technique of scolding tin welding electric capacity pin, avoided wire to leak outside, reduced the motor volume.
(4) motor chassis for aluminium heat radiation outer cover, has reduced the temperature rise of motor, so that motor can further bear higher electric current outward.
Description of drawings
Fig. 1-the 1st: the plastic stent assembly master of former two utmost points, two carbon brush brush rocker structures looks cutaway view;
Fig. 1-2 is: the plastic stent assembly left view of former two utmost points, two carbon brush brush rocker structures;
Fig. 2 is: the motor assembly drawing of former two utmost points, two carbon brush brush rocker structures;
Fig. 3-the 1st: the utility model plastic stent master looks cutaway view;
Fig. 3-the 2nd: the utility model plastic stent right view;
Fig. 3-the 3rd: the utility model plastic stent left view;
Fig. 4-the 1st: the utility model brace front view;
Fig. 4-the 2nd: the utility model brace vertical view;
Fig. 4-the 3rd: the A-A cutaway view of Fig. 4-1;
Fig. 5-the 1st: the utility model plastic stent assembly master looks cutaway view;
Fig. 5-the 2nd: the utility model plastic stent assembly right view;
Fig. 5-the 3rd: the utility model plastic stent assembly left view;
Fig. 6 is: the motor configuration assembly drawing of the utility model four utmost points four carbon brush structures.
Description of reference numerals: 1 plastic stent assembly, 11 plastic stents, 111 electric capacity pin grafting slotted eye A, 112 electric capacity pin grafting slotted eye B, 113 sulculuses, 114 cylindrical breach, 12 brush box assemblies, 121 brush boxs, 122 carbon brush, 123 brush box bottom board, 13 electric capacity, 131 electric capacity pin A, 132 electric capacity pin B, 14 torsion springs, 15 external terminals, 16 duckpins, 2 end-cap assemblies, 3 rotor assembly, 31 commutators, 4 casings, 5 heat radiation outer covers, 6 braces, 61 connecting holes.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to restriction of the present utility model.
To shown in Figure 6, a kind of motor configuration that bears high overload comprises plastic stent assembly 1, end-cap assembly 2, rotor assembly 3, casing 4 and heat radiation outer cover 5 such as Fig. 3-1; Described plastic stent assembly 1 comprises plastic stent 11, brush box assembly 12, electric capacity 13, torsion spring 14 and external terminal 15, described brush box assembly 12 comprises brush box 121, carbon brush 122 and brush box bottom board 123, it is other that described carbon brush 122 and brush box 121 crimping, described torsion spring 14 are arranged on brush box 121; Described plastic stent assembly 1 is four utmost points, four carbon brush structures, and 2 N utmost points and 2 S utmost points are oppositely arranged respectively, forms the heteropole brush box; Brush box assembly 12 is towards the direction assembling of end-cap assembly 2; Described plastic stent 11 outsides, evenly be provided with 4 brush box bottom board 123 installation sites up and down; Brush box 121 is pegged graft and riveting with brush box bottom board 123 and plastic stent 11.
Be provided with 4 duckpins 16 on the inner face of plastic stent; Also comprise 2 braces 6, the width of described brace 6 is that 2mm, thickness are 0.8mm; Be provided with 2 connecting holes 61 on each brace 6, each brace 6 is fixedly connected with plastic stent 11 with 2 duckpins 16 by its 2 connecting holes 61, and each brace 6 is connected with brush box bottom board 123 spot welding.
Described electric capacity 13 is arranged on the outside of plastic stent 11, is provided with electric capacity pin grafting slotted eye A111 and electric capacity pin grafting slotted eye B112 on plastic stent 11 edges of described electric capacity 13 both sides; Described electric capacity 13 comprises electric capacity pin A131 and electric capacity pin B132, and described electric capacity pin A131 is through among the electric capacity pin grafting slotted eye A111, leads to the inner face of plastic stent 11 downwards, towards motor direction and brace 6 pressure injections again, and is connected in the circuit; Described electric capacity pin B132 is through among the electric capacity pin grafting slotted eye B112, and draw to the inner face of plastic stent 11, again by the sulculus 113 on the plastic stent 11, until the cylindrical breach 114 of plastic stent 11 can be connected with casing 4 when assembling plastic stent assembly 1.
Described external terminal 1 and the perpendicular plane of rotor assembly 3 on, oblique grafting and being riveted on two plastic stents 11 between the brush box 121.Commutator 31 external diameters in the described rotor assembly 3 are 18mm.Described carbon brush 122 areas of section are 36 square millimeters.Be fixedly installed a heat radiation outer cover 5 on the described casing 4.
Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection range of the present utility model.
Claims (7)
1. a motor configuration that bears high overload comprises plastic stent assembly, end-cap assembly, rotor assembly, casing and heat radiation outer cover; Described plastic stent assembly comprises plastic stent, brush box assembly, electric capacity, torsion spring and external terminal, and described brush box assembly comprises brush box, carbon brush and brush box bottom board, described carbon brush and brush box crimping, and described torsion spring is arranged on by the brush box; It is characterized in that: described plastic stent assembly is four utmost points, four carbon brush structures, and 2 N utmost points and 2 S utmost points are oppositely arranged respectively, forms the heteropole brush box; The brush box assembly is towards the direction assembling of end-cap assembly; Described plastic stent outside, evenly be provided with 4 brush box bottom board installation sites up and down; Brush box and brush box bottom board and plastic stent are pegged graft and riveting;
Be provided with 4 duckpins on the inner face of plastic stent; Also comprise 2 braces, be provided with 2 connecting holes on each brace, each brace is fixedly connected with plastic stent with 2 duckpins by its 2 connecting holes, and each brace is connected with brush box bottom board spot welding;
Described electric capacity is arranged on the outside of plastic stent, is provided with electric capacity pin grafting slotted eye A, B on the plastic stent edge of described electric capacity both sides; Described electric capacity comprises electric capacity pin A, B, and described electric capacity pin A is through among the electric capacity pin grafting slotted eye A, leads to the inner face of plastic stent downwards, towards motor direction and brace pressure injection again, and is connected in the circuit; Described electric capacity pin B is through among the electric capacity pin grafting slotted eye B, and draws to the inner face of plastic stent.
2. described a kind of motor configuration that bears high overload according to claim 1, it is characterized in that: the width of described brace is that 2mm, thickness are 0.8mm.
3. described a kind of motor configuration that bears high overload according to claim 1, it is characterized in that: described electric capacity pin B is after other electric capacity pin grafting slotted eye B draws, again by the sulculus on the plastic stent, until the cylindrical of plastic stent can be connected with casing when assembling plastic stent assembly.
4. described a kind of motor configuration that bears high overload according to claim 1 is characterized in that: described external terminal and the perpendicular plane of rotor assembly on, oblique grafting and being riveted on two plastic stents between the brush box.
5. described a kind of motor configuration that bears high overload according to claim 1, it is characterized in that: the commutator brush track diameter in the described rotor assembly is 18mm.
6. described a kind of motor configuration that bears high overload according to claim 1, it is characterized in that: described carbon brush area of section is 36 square millimeters.
7. described a kind of motor configuration that bears high overload according to claim 1 is characterized in that: be fixedly installed a heat radiation outer cover on the described casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496032 CN202840891U (en) | 2012-09-27 | 2012-09-27 | Motor structure bearing high overload |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220496032 CN202840891U (en) | 2012-09-27 | 2012-09-27 | Motor structure bearing high overload |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202840891U true CN202840891U (en) | 2013-03-27 |
Family
ID=47952492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220496032 Expired - Lifetime CN202840891U (en) | 2012-09-27 | 2012-09-27 | Motor structure bearing high overload |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202840891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281172A (en) * | 2014-06-07 | 2016-01-27 | 杨浩 | Carbon brush assembly for motor |
-
2012
- 2012-09-27 CN CN 201220496032 patent/CN202840891U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281172A (en) * | 2014-06-07 | 2016-01-27 | 杨浩 | Carbon brush assembly for motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |