JPH0283651U

JPH0283651U -

Info

Publication number: JPH0283651U
Application number: JP16210188U
Authority: JP
Priority date: 1988-12-14
Filing date: 1988-12-14
Publication date: 1990-06-28
Anticipated expiration: 2003-12-14
Also published as: JPH0615483Y2

Description

[Brief explanation of the drawing]

第１図ＡないしＣは本考案に適用されるモータ
蓋板を説明するための説明図であつて、第１図Ａ
はモータ蓋板の内側正面図、第１図Ｂは第１図Ａ
図示矢印Ａ―Ａにおける断面図、第１図Ｃは第１
図Ａ図示矢印Ｂ―Ｂにおける断面図、第２図は第
１図図示モータ蓋板に装着される各部品の斜視図
、第３図は本考案の一実施例におけるモータ蓋板
の内装図、第４図は本考案の他の一実施例におけ
るモータ蓋板の内装図、第５図は本考案に適用さ
れる挟着部材の他の一実施例を説明するための斜
視図、第６図は本考案の前提となる周知の一般的
な小型モータの構成図、第７図は正特性サーミス
タによる過熱防止機能を説明するための説明図を
示す。図中、１はモータ蓋板、２は端子ホールダ、３
は突出端子挿入孔、４はサーミスタ収容部、５は
ブラシアームホールダ、６はブラシアーム嵌合溝
、７は連結部材収容部、８はハーネス挿入孔、９
は軸受保持部、１０は正特性サーミスタ、１１お
よび１７は第１の挟着部材、１２および１８は第
２の挟着部材、１１―１，１２―１，１７―１お
よび１８―１は弾性接触部、１１―２，１２―２
，１７―２および１８―２はスリツト部、１３は
ブラシアーム、１４は突出端子、１５は内部端子
、１４―１および１５―１は嵌合係止部、１４―
２および１５―２は端子部、１６は連結部材を表
す。 1A to 1C are explanatory diagrams for explaining the motor cover plate applied to the present invention, and FIG.
is the inside front view of the motor cover plate, Figure 1B is Figure 1A
A cross-sectional view taken along the arrow A-A in the figure, FIG.
Figure A is a cross-sectional view taken along arrow B-B, Figure 2 is a perspective view of each part attached to the motor cover plate shown in Figure 1, and Figure 3 is an interior view of the motor cover plate in an embodiment of the present invention. FIG. 4 is an interior view of the motor cover plate in another embodiment of the present invention, FIG. 5 is a perspective view for explaining another embodiment of the clamping member applied to the present invention, and FIG. 6 7 is a block diagram of a well-known general small motor that is the premise of the present invention, and FIG. 7 is an explanatory diagram for explaining the overheat prevention function by a positive temperature coefficient thermistor. In the figure, 1 is the motor cover plate, 2 is the terminal holder, and 3
4 is a protruding terminal insertion hole, 4 is a thermistor accommodating part, 5 is a brush arm holder, 6 is a brush arm fitting groove, 7 is a connecting member accommodating part, 8 is a harness insertion hole, 9
is a bearing holding part, 10 is a positive temperature coefficient thermistor, 11 and 17 are first clamping members, 12 and 18 are second clamping members, 11-1, 12-1, 17-1 and 18-1 are elastic Contact part, 11-2, 12-2
, 17-2 and 18-2 are slit parts, 13 is a brush arm, 14 is a protruding terminal, 15 is an internal terminal, 14-1 and 15-1 are fitting locking parts, 14-
2 and 15-2 represent terminal portions, and 16 represents a connecting member.

Claims

[Claims for Utility Model Registration] A motor is equipped with a stator having a permanent magnet for forming a field and a rotor in which a plurality of rotor windings are wound around a rotor core, and is supported within a motor cover plate. A small motor configured to supply current to the rotor winding through a commutator that is in sliding contact with a power supply brush, and equipped with a positive temperature coefficient thermistor that controls the current to the rotor winding, The motor cover plate is provided with a pair of terminal holders for holding terminals, and the motor cover plate includes a pair of terminals having a fitting locking part made of a conductive material and fitted and locked to the terminal holder. and,
a pair of brush arms made of a conductive material; a connecting member disposed to elastically contact one of the brush arms and one of the terminals to electrically connect the brush arms and the terminal; a first clamping member disposed so as to be in elastic contact with the brush arm and electrically connected to the brush arm; and a second clamping member electrically connected to the first clamping member, and the positive temperature coefficient thermistor is configured to be clamped and held between the first clamping member and the second clamping member. A small motor equipped with a positive characteristic thermistor.