TW565071U - Improvement of electric motor carbon-brush spring-press structure - Google Patents

Description

Post 〇7ι 5. Zhao Zuo's description⑴ [Scope of creation This creation is an improved electric motor brush with a better structure and longer service life. [Background of creation At present, the most common sources of power electric motors are the most sourced and provide electrical combustion. Exhaust gas pollution tools also lead to the traces of our motors and vehicles. Carefully there may be a few and we all have coils conducting electric permanent magnetic fields to generate motion. The magnetic field in the coils, that is, the stator, is like the rotor of a motor 1 〇 • It is necessary to turn the input terminal at 10 times at any time. It is easy for Anjun to extend the description in an electric horse carbon brush holder.] There are many people who have convenient motor power in ordinary equipment. Electricity, that is, the first picture of the jacket on a local mutually exclusive electric motor is continuously rotated at an angle to form an improvement of the brushed structure of the rectified carbon brush. Special, 2¾ τ〇 £ σ.1, ™ ^ ^ The flexible connection structure of the carbon brush makes carbon equal to the amount stable and stable. In contact with life, the consumption of energy becomes energy in order to obtain the convenience of energy. The society has a lot of needs, and the use and point of electric motors is an automation consideration. The most used pumping motor is so large as to drive all cranes, etc., '...' can be seen, and the motors surrounding Ping 4 are around us. The original coil itself or a partial phase is the rotating motion of the electric motor when it is filled with a permanent magnet stator, and provides the correct element 11 and g, which is full of the armature when the electric attraction is generated. When magnetic, 'thereby causing the rotor to form a magnetic field, the changes in the rotor 10 are shown in the diagram. Because the connection corresponds to the mechanics, the same kind of power will not cause a good power type. The motor shell that is conductive and interferes with the wires generated by the outer coils, due to the electric power, must be in the carbon of the rotor electrode 565071

Brush 2 0, 2 1 keeps the spring commutator 丨 丨, and the installation of carbon brushes 20, 2 i is tied to the other end of the carbon brush 20, 21 against the commutator n, which are respectively embedded in the corresponding spring arms. 30, 31 arm ends, and the elastic arms 30, 31 are fixed to the other ends of the corresponding carbon brushes 20, 2m, and are respectively soldered to the corresponding electrode pads 40, 4 丨 the end of the sheet is bent, and a complete brush holder is provided A set of 50 is clamped between the motor case 60 and the base 6 丨. On the carbon brush holder 50, corresponding to the electrode pads 40 and 41 are inserted, and a gap 6 2 and 6 3 are opened to sandwich the electrode pad 40. 41. Make the spring arm 30, 31 connected to one end of the carbon brush 20, 21, and bend it toward the center to press against the commutator 11. Thus, as shown in the carbon brush action diagram in the second figure, the carbon brush 20, 21 spring arm 30 , 31 action, the constant bomb hits the surface of the commutator η, so that electricity

It can flow into the rotor 10 through the electrode pads 40, 41, the elastic arms 30, 31, the carbon brushes 20, 21, and the commutator 11, and the structure of the installed carbon brush has the following defects: 1. When just used ' The carbon brush that has never worn out is strongly pressed against the commutator by the spring arm. It is easy to cause sparks between the contact surface of the carbon brush and the commutator. Pressing the stem makes the rotor not turn easily, which results in the lack of reduced motor torque.

2. After a long period of use, as shown by the schematic line in the second figure, the length of the carbon brush is worn, causing the elastic arm with the right b to move elastically, the contact direction of the elastic carbon brush to the commutator is deflected, causing the carbon brush Poor electrical contact with the commutator, the carbon brushes are easier to wear, and the spring arm force becomes more relaxed, so that the pressure of the carbon brush against the commutator is reduced, and the amount of electricity passed into the rotor is reduced. The amount of brush spring pressure causes the carbon brushes to wear quickly, which reduces the service life of the motor and affects the running performance of the motor. 3. For assembly, the small spring arm must be welded to the small electrode plate.

565071 V. Creation Instructions (3) Again =: Make the assembler "to align the card slot installation is missing and install carbon brushes on the elastic structure" There are all the above-mentioned processes, and finally have the original way to improve, after some difficulties Xin Chuang's [general summary] Improvement reasons: i: 3: aims to provide a spring of electric motor carbon brush spring structure in various; 2ΐΐ push the carbon brush straight to the commutator, and you can accompany it with a constant force Hold the needle instead ^ ^ r 'all have equal elastic pressure on the carbon brush, carbon brush flow ==: constant spring pressure *, so that the motor will not be too strong against the target of the whole shovel. One of the purposes of this work is to prevent sparks and reduce motor performance. ^ 1 Sheng Sheng created the improvement of the carbon brush spring structure of this electric motor. Since 2 commutating carbon brushes are used to press the commutator, #constant force springs are used to press the carbon brushes and carbon brushes with a uniform elastic force. It can maintain a constant amount of spring pressure on the second child, so that the spring force of the motor to the commutator is also strong and not reduced, and the direct pressing makes the angle of the carbon brush grinding stable, and no deflection and wear of the carbon brush will occur.悝 Provide a certain amount of input power to the rotor, and the carbon brushes I and each other maintain a positive hanging wear speed. Because the carbon brushes extend from the chute, the moving space is large, so the length of the carbon brushes can be more than twice that of the traditional design, which makes the service life of the motor. It is more common to see that the carbon brush spring calendar structure has more than three times more motors, which is another purpose of this creation. Moreover, the carbon brush of the electric motor of this creation is improved. The carbon brushes press against the side ends of the commutator, and the wires are connected to one end to protrude.

Page 7 565071 ------- Five 'creation instructions (4) The guide of the pole post has a carbon body aligned at the same time with the periphery and the corresponding position of the carbon brush holder. According to the [illustrated element 2 plate ', the electrode post and the conductive plate are formed into an integrated shape, which has the function of the Wenshang position. As long as the clip is inserted through the conductive post, the conductive plate can be tightly installed. The cover is sealed, the chute 'and the conductive plate with the electrode post have a larger plate surface cut into the small gaps in the carbon brush holder, and the carbon brush installation is easier because of the parts. Another purpose of Ann's creation. The detailed structure, application principle, function and effect of the creation can be fully understood from the description of the drawings. Number and name comparison] 10 ... 11 ... 20, 21 30, 31 40, 41 50 ... 6 0 ... 61 ... 62, 63 100 .. 101: Rotor rectification: carbon ... ..Electric carbon brush motor base..Clip carbon brush through hole brush arm pole piece seat shell seat 1 0 2，1 0 3 ... carbon brush slide 1 0 2 A ， 1 0 3 A: elastic body clip Slots 1 0 4, 1 0 5 · ·. Ao clip slot

Page 8 565071 V. Creation Instructions (5) ---- 2 0 0, 2 0 1 ... carbon brush 3 0 0, 3 0 1 ... lead wire 302.303... Electrode post 3 04, 3 0 5 · .. Conductive plates 400, 40 1 ... Constant force spring 500 ... Rotor 5 0 1 ... Commutator 5 0 2 ... Motor case 503 ... Base [preferred embodiment Description] The defects caused by the carbon brush spring structure of the electric motor shown in the first and second pictures are as described above, and will not be repeated here. The third picture is the overall exploded view of the carbon brush spring structure of the improved electric motor, and it is referred to the top view of the third picture and the structural cross-sectional view of the fourth picture. From these figures, it can be seen that this creation is an improvement In the carbon brush holder of the electric motor, the elastic connection structure of the carbon brush holder 200, 201 is pushed against the carbon brush holder 100. A through hole 101 is formed in the center of the carbon brush holder 100, and the 100 surface of the carbon brush holder is placed correspondingly. The positions of at least one pair of carbon brushes 200, 201 are recessed with carbon brush chute 102, 103, the carbon brush chute 丨 "," 3-the end is transparent through the hole edge, and the carbon The two sides of the brush slide grooves 102 and 103 are relatively suitable, and an elastomer clip groove 102A and 103A are horizontally formed, and a carbon brush slide groove 1 02, 10 is formed at the carbon brush holder 100. The outer edge of 3 is recessed, which can be inserted into the clamping slot 1 0 2 0 3 of the electrode f rod 3 2 0, 3 0 3, and the carbon brushes 2 0 0, 2 0 1 are put into the commutator of the house. At the side ends, the wires 300, 301 are overlapped respectively, and the conductive plates 3 02, 3 05 of the electrode posts 3 02, 3 03 are protruded at one end, and are covered in the elastic clamping grooves.

565071 V. Creation Instructions (6) In 102A and 103A, the clamps are fixed at both ends of the spring 401,401. During the installation, as shown in the overall three-dimensional exploded view of the sixth figure, the constant force springs 400, ..., the surface of the carbon brush slide groove I 〇2, facing the through hole 1 〇1, place Into the carbon brush 2 0 〇 2 0 1 'Make the carbon brush 2 0 0, 2 0 1 press the other end of the commutator 5 0 1 by the constant force spring 400, ... push against' and make the electrode post 3 〇2, 303 is inserted through the corresponding inserting grooves 104,..., So that the conductive plates 304, 305 can tightly cover the corresponding carbon brush slide grooves 〇2 and carbon brushes 〇〇〇, 2 0 1 will not escape the carbon brush chute 1 0 2...... Assemble, put the rotor 5 000 into the motor case 5 & 0 2 ′ and expose the rotor 5 00 to the motor case 5 2. The commutator 501 axis passes through the through hole 100 of the carbon brush holder 100, so that several carbon brushes 2000, 001 clamp the commutator 501 'electrode posts 302, 303 and wear The base 503 is taken out, and the carbon brush holder 100 is clamped between the motor case 502 and the base 503 and fixed. ^ In the action of the carbon brush elasticity, as shown in the seventh figure, the carbon brushes are pushed in the direction of 40 0,40 1 with a constant force to push the carbon brushes 2 0, 2 0 1 against the commutator 5 0 1. J! Ff40 0'401 Under all kinds of expansion and contraction, there are equal elastic pressure carbon, 2000 2 01, the material is hindered to brush 2 0, 2 0 1 to keep the commutator 5 0 2 strange —While the carbon brushes 200, 201 are worn within the usable range, the springs 400,40 1 provide a constant amount of spring force, which is maintained and rectified. The contact pressure is constant and there is no spring force amount. The change caused the first brush abrasion caused by poor contact, which reduced the performance of the electric motor, and the constant holding surface 'received = applied' could limit the carbon brush 20 °, 201 contact loss. * 501 The friction caused by the rotation friction force, resulting in the lack of shaking vibration. From the above, we can see that the electric motor carbon brush spring structure of this creation

Page 10 565071 V. Creative Instructions (7) Improvement, it does have a carbon brush spring structure compared to the conventional electric motor, which is easier to install, has better spring contact, can maintain normal wear and tear, stabilizes the performance of the motor, and extends the service life of the motor. Advantages, and not seen in public use, are in accordance with the provisions of the Patent Law. Those who must be aware of the above are the better and concrete embodiments of this creation. If the changes made according to the concept of this creation have a functional effect that does not exceed the spirit covered by the description and illustrations, It should be shared with Chen Ming within the scope of this creation.

Page 11 565071 Brief description of the drawings The first picture is an exploded view of the structure of a conventional electric motor. The second picture is the carbon brush action diagram of the conventional electric motor. The third picture is the overall exploded view of the carbon brush spring structure of the electric motor. The fourth picture is the top view of the carbon brush spring structure of the electric motor. The fifth figure is a sectional view of the carbon brush spring structure of the electric motor. The sixth figure is an overall three-dimensional exploded view of the electric motor using the carbon brush spring structure of the improved electric motor. The seventh figure is an illustration of the carbon brush spring action of the electric motor using the carbon brush spring structure of the modified electric motor.

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Claims (1)

565071 /, Shen Jing Patent Scope 1 · ▲ An improvement of the elastic structure of the electric motor carbon brush, which is an improvement of the elastic connection structure of the carbon brush holder in the electric motor, which is characterized in that the center of the carbon brush holder is transparent. The hole penetrates the commutator axis of the motor rotor, and the carbon brush seat surface is correspondingly placed. At least one pair of carbon brushes is recessed with a carbon brush slide groove, and one end of the brush slide groove penetrates the hole edge. And the two sides of the carbon brush chute are relatively appropriate, and an elastic clamping groove is laterally opened, and the two ends of a certain force spring are clamped in each of the elastic clamping grooves, and the surface of the constant force spring faces the edge of the through hole. Put a carbon brush in the chute part of the carbon brush, so that the other end of the carbon brush is pressed against the commutator by the constant force spring. 2. According to the improvement of the carbon brush spring structure of the electric motor in item 1 of the scope of the patent application, the carbon brush holder forms the outer edges of the carbon brush slide grooves, and is recessed with a clamping groove, and the carbon brushes press the commutator. The side ends are respectively connected with conductive wires that extend from one end of the electrode post, and this conductive plate also functions as a cover plate of the carbon brush holder. The electrode post can be inserted through the insertion groove to form a tight fixture.