Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R39/00—Rotary current collectors, distributors or interrupters
  • H01R39/02—Details for dynamo electric machines
  • H01R39/38—Brush holders
  • H01R39/40—Brush holders enabling brush movement within holder during current collection
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K5/00—Casings; Enclosures; Supports
  • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
  • H02K5/14—Means for supporting or protecting brushes or brush holders
  • H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
  • H02K5/148—Slidably supported brushes

Definitions

• the present invention relates to a brush device used for a rotating machine such as a starter motor, for example.
• Fig. 1 and Fig. 2 are a plan view and a cross-sectional view of a principal part of a conventional brush device.
• 2a and 2b are holding frames on the minus side
• 3a and 3b are holding frames on the plus side
• 4a and 4b are caulking solid portions 5a and 5b, respectively.
• a synthetic resin plate fixed to the holding frames 3a and 3b on the plus side, 6 is an iron plate substrate
• the holding frames 2a and 2b on the minus side are directly connected to the holding frames 3a on the plus side.
• 3b are caulked in an isolated state via the synthetic resin plates 4a, 4b.
• Reference numerals 7a and 7b denote plus-side brushes, which are housed in storage spaces formed by the plus-side holding frames 3a and 3b and the synthetic resin plates 4a and 4b, respectively.
• , 8b are flashes on the minus side which are stored in the holding space formed with the holding frames 2a, 2b on the minus side and a certain plate 6, respectively.
• These brushes 7a , 7b, 8a, 8b are fixed with lead wires 9a, 9b, 10a, 10 on the sides thereof, respectively, and are connected to the negative lead wires 9a, 9a, 9b.
• Reference numeral 12 denotes a brush spring that presses and biases the brushes 7a, 7b, 8a, and 8b to the commutator 1.
• the brush is not provided.
• the present invention has been made in order to solve the above-mentioned conventional problems, and has as its object to obtain a brush device R having a longer service life of a brush and improved durability.
• a brush and a spring for urging the brush against the rectifier to appress the brush are housed in a brush holding frame, and the lead wire connected to the brush is drawn out.
• the commutator sliding contact end of the opening formed in the brush holding frame is inclined toward the inside of the brush holding frame's receiving part in the direction of the bracket and commutator sliding contact.
• Fig. 1 is a plan view of the conventional brush device H3 ⁇ 4
• Fig. 2 is a cross-sectional view of the main part of the brush device
• Fig. 3 is an embodiment of the present invention
• Fig. 4 is a plan view of the brush equipment
• Fig. 4 is a sectional view of the main parts of the brush equipment.
• FIG. 3 and FIG. 4 are plan views of the brush device according to the embodiment of the present invention.
• FIG. 1 13a and 13b are negative and positive brushes, respectively, and 14 is a pressing and biasing of these brushes 13a and 13b against the commutator 1.
• the brushes 13a, 13b and 4b are provided in a brush holding frame 15 molded from a thermosetting synthetic resin. It is stored in the storage section 16 of the product. .17 is an opening for drawing out the lead wires 18a and 18 formed on the side of the storage section 16 of the brush holding frame 15. The end of (downward in Fig.
• Numeral 19 denotes a stiffener plate for stopping the brushes 13a and 13b and the end bracket (not shown), which engages with the engaging portion 15a of the brush holding frame 15 and The axial opening 15b of the holding frame 15 extends over the entire surface.
• Reference numerals 20a and 20b denote iron mounting pieces from which the metal is removed and which are screwed to the end bracket.
• the body-shaped protrusion 15b of the brush holding frame 15c And press the bracing plate 19 against the brush holding frame 15.
• 2 1 is a protruding portion provided on the mounting piece 2 ⁇ a.
• Minus brush 13a is electrically connected to end bracket via lead wire 18a, protruding part 21 and mounting piece 20a .
• the brush device formed in the above manner stores the brushes 13a and 13b in the storage part 16 of the brush holding frame 15 and the brush spring 4 in addition to the lead wire.
• Pull out 18a and 18b from the opening section 17b cover the brush holding frame opening section 15b with the insulating plate 19 and engage with the engaging section 15a.
• the mounting pieces 2 Gla and 20 b are respectively attached to the projections 15 c in the outward direction.
• Commutator ⁇ (Commutator ⁇ ) will be moved to The end of the commutator 1 on the side of the commutator 1 is an inclined portion 17a, so that the lead wires 8a and 18b are curved along the inclined portion 17a, and the brush spring 14 It does not hinder the progress of the brushes 13a and 13b that are pressed.

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Motor Or Generator Current Collectors (AREA)
• Dc Machiner (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=12327902

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (5)

Citations (3)

Family Cites Families (17)

• 1987
  • 1987-03-04 JP JP1987031317U patent/JPH0640462Y2/ja not_active Expired - Lifetime
• 1988
  • 1988-03-01 DE DE3890169A patent/DE3890169C2/de not_active Expired - Fee Related
  • 1988-03-01 KR KR1019880701373A patent/KR910010197B1/ko not_active IP Right Cessation
  • 1988-03-01 WO PCT/JP1988/000229 patent/WO1988006815A1/ja active Application Filing
  • 1988-03-01 US US07/294,638 patent/US5070270A/en not_active Expired - Lifetime

Patent Citations (3)

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