TWI543497B - Plug-in carbon brush holder and conductor terminal assembly - Google Patents

Description

In-line carbon brush holder and its assembly with wire terminals

The invention relates to a carbon brush holder of a carbon brush motor, in particular to an in-line carbon brush holder, and an assembly of the in-line carbon brush holder and a wire terminal.

Please refer to FIG. 1 and FIG. 2 first. The carbon brush holder 10 of the conventional carbon brush motor comprises a housing 11 made of an insulating material (for example, bakelite plastic), and a conductive material (for example, copper). And the tube body 12 fixed in the casing 11, the carbon brush holder 10 is fixed on the inner side surface of a motor casing 16 by the casing 11, and a carbon brush (not shown) is disposed on the casing Inside the tube 12. The motor housing 16 is elongated and has an open end 161 and a closed end 162. The motor housing 16 is usually provided with two carbon brush holders 10 in opposite positions, and each of the carbon brush holders 10 The set position is quite close to the closed end 162.

The tube body 12 of the carbon brush holder 10 is formed by stamping, and at the same time, a plate body 13 parallel to the longitudinal direction of the tube body 12 is integrally formed, and the plate body 13 is used for connecting a wire terminal 14 (such as the third The figure is electrically connected to an external power source by a wire 15 connected to the wire terminal 14. When the lead terminal 14 is mounted, the installer grips the lead terminal 14 with an elongated clip and extends the elongate clip into the motor housing 16 such that the lead terminal 14 approaches the closed end 162 of the motor housing 16, and The wire terminal 14 is sleeved on the plate body 13, and then the installer needs to bend the plate body 13 into the state shown in FIG. 3 by the clip to avoid the wire 15 and the pipe body 12. The carbon brushes inside extend in the same direction and interfere with each other.

However, the manner of installing the wire terminal 14 is relatively difficult to perform, and the wire terminal 14 is easily detached from the plate body 13 during installation or after installation, and the plate body 13 is also easily broken by the motor. In the case of maintenance, the state of being bent back and forth is broken many times. In addition, the contact area between the plate body 13 and the wire terminal 14 is small, so that the effect of the electrical connection is less than ideal and the short circuit condition is likely to occur.

In view of the above-mentioned deficiencies, the main object of the present invention is to provide an in-line carbon brush holder, and an assembly of a straight-in type carbon brush holder and a wire terminal, which can effectively eliminate the aforementioned conventional carbon brush holder and wire terminal. Improve it.

In order to achieve the above object, the in-line carbon brush holder provided by the present invention comprises an insulating shell and a conductive member, the conductive member having a part of the tube body disposed in the insulating shell and a carbon brush mounted on the inner side of the tube body. a slot, and a slot outside the tube body and located outside the insulating case, the slot is for inserting a wire terminal.

In order to achieve the above object, the present invention further provides an assembly of a plug-in carbon brush holder and a wire terminal, wherein the in-line carbon brush holder comprises an insulating shell and a conductive member, and the conductive member has a portion disposed on the insulating a tube in the shell, a carbon brush mounting groove on the inner side of the tube body, and a slot outside the tube body and located outside the insulating shell, a contact surface and a protrusion protruding from the contact surface; The wire terminal has a flat plate portion, and a positioning hole disposed in the flat plate portion. The flat plate portion is inserted into the slot of the in-line carbon brush holder and abuts against the contact surface, and the protruding block is located at the positioning portion. Inside the hole.

Therefore, the in-line carbon brush holder is easier to install the wire terminal than the conventional carbon brush holder, and the wire terminal is not easy to fall off, and the conductive member does not need to be bent during the installation process and is less likely to be damaged, and further, the conductive The contact area of the piece with the wire terminal is larger than that of the conventional one, and thus has a better electrical connection effect.

The detailed construction, features, assembly or use of the in-line carbon brush holder and its assembly with the wire terminal provided by the present invention will be described in the detailed description of the subsequent embodiments. However, it should be understood by those of ordinary skill in the art that the present invention is not limited by the scope of the invention.

[Prior technology]

10‧‧‧Carbon holder

11‧‧‧Shell

12‧‧‧ tube body

13‧‧‧ board

14‧‧‧ wire terminal

15‧‧‧Wire

16‧‧‧Motor housing

161‧‧‧ open end

162‧‧‧closed end

[Examples]

20‧‧‧Inline carbon brush holder

30‧‧‧ wire terminal

32‧‧‧ Flat section

34‧‧‧Bending

36‧‧‧Positioning holes

40‧‧‧Insulated shell

42‧‧‧ end face

44‧‧‧ Positioning Department

442‧‧‧ longitudinal ribs

444‧‧‧ transverse ribs

446‧‧‧ positioning slot

50‧‧‧Electrical parts

51‧‧‧ tube body

512‧‧‧Contact surface

514‧‧‧through slots

516‧‧‧ partition ribs

516a‧‧‧ Bevel

52‧‧‧carbon brush installation slot

53‧‧‧ slots

54‧‧‧ protruding ribs

542‧‧‧Stretching

544‧‧‧Extension

544a‧‧‧ top side

544b‧‧‧Bottom

544c‧‧‧ pressed surface

544d‧‧‧Bevel

55‧‧‧Bumps

D‧‧‧ Extension direction

1 is a three-dimensional combination view of a conventional carbon brush holder and a motor casing; FIG. 2 is a three-dimensional combination diagram of a conventional carbon brush holder; and FIG. 3 is a three-dimensional combination diagram of a conventional carbon brush holder and a wire terminal; 4 is a perspective assembled view of an in-line carbon brush holder and a lead terminal according to a preferred embodiment of the present invention; and FIG. 5 is a view of the in-line carbon brush holder and the lead provided by the preferred embodiment of the present invention; FIG. 6 is an exploded perspective view of the in-line carbon brush holder provided by the preferred embodiment of the present invention; and FIGS. 7 and 8 are provided by the preferred embodiment of the present invention. A cross-sectional perspective view of one of the in-line carbon brush holders viewed from two different directions.

Referring to FIG. 4 to FIG. 6 , a preferred embodiment of the present invention provides an assembly of a plug-in carbon brush holder 20 and a lead terminal 30. The in-line carbon brush holder 20 includes an insulative housing 40, and a Conductive member 50.

The insulating case 40 is made of an insulating material (for example, bakelite plastic), and its shape is similar to that of the conventional one, except that the insulating case 40 has a positioning portion 44 protruding from one end surface 42 thereof, and the positioning portion 44 has two The longitudinal rib 442, a transverse rib 444 connecting the two longitudinal ribs 442, and two positioning grooves 446 respectively located on two sides of the lateral rib 444 and located between the two longitudinal ribs 442.

The conductive member 50 is made of a conductive material (for example, copper), and has a tube body 51, a carbon brush mounting groove 52 located inside the tube body 51, and a slot 53 located outside the tube body 51. In this embodiment, the slot 53 is formed by a contact surface 512 and two protruding ribs 54 on the outer side of the tubular body 51. The two protruding ribs 54 are integrally connected to the contact surface 512 of the tubular body 51. Each of the protruding ribs 54 has a protruding portion 542 protruding from the contact surface 512, and an extending portion 544 extending from the protruding portion 542 toward an extending direction D. The extending direction D is substantially parallel to the extending portion 542. Contact surface 512. The conductive member 50 can have only one of the protruding ribs 54, so that the slot 53 can also be formed. The structure of the conductive member 50 forming the socket 53 is limited to the structure provided by the embodiment. However, the conductive member 50 of the embodiment is easy to be formed by stamping, and thus has the advantage of being quick to manufacture.

As shown in FIG. 5, the conductive member 50 is partially disposed in the insulating case 40 and partially protrudes from the end surface 42. The two protruding ribs 54 are located outside the insulating case 40, and the two protruding ribs 54 are provided. The extending portions 544 are respectively inserted into the two positioning grooves 446. Thereby, the positioning portion of the insulating case 40 44 can support the protruding ribs 54 of the conductive member 50 such that each of the protruding ribs 54 is not easily deformed or broken. The shape of the positioning portion 44 is not limited to the shape provided by the embodiment, as long as the insulating housing 40 is provided with a positioning groove for the extension portion 544 of each of the protruding ribs 54 to be inserted.

The wire terminal 30 is made of a conductive material (for example, copper), and has a flat plate portion 32 and a bent portion 34 integrally connected to each other. The flat plate portion 32 is inserted into the slot 53 of the conductive member 50. As shown in FIG. 4, at this time, the conductive member 50 clamps the flat portion 32 of the lead terminal 30 between the extending portion 544 of the two protruding ribs 54 and the contact surface 512. The two protruding ribs 54 are as shown in FIG. The extending portion 544 is pressed against the flat plate portion 32, and the flat plate portion 32 abuts against the contact surface 512. The bent portion 34 is configured to be clamped and fixed to one end of a wire (not shown), whereby the conductive member 50 can be connected to the external power source (not shown) by the wire terminal 30 and the wire. Electrical connection.

Since the conductive member 50 has the structure of the socket 53, the wire terminal 30 can be relatively easily mounted to the in-line carbon brush holder 20 as long as it has the flat plate portion 32 that can be inserted into the slot 53 and is mounted. The process does not require the step of bending the conductive member 50. Therefore, the in-line carbon brush holder 20 of the present invention is easier to mount the wire terminal 30 than the conventional carbon brush holder and is less susceptible to damage. In addition, the wire terminal 30 is sandwiched by the conductive member 50 on both sides, so that the connection manner is relatively stable, so that the wire terminal 30 is not easy to fall off, and the contact area of the conductive member 50 and the wire terminal 30 is larger than that of the conventional device. Therefore, it has a better electrical connection effect.

In addition to the foregoing structural features, the present invention may, but is not limited to, further have the following structural features to make the contact of the conductive member 50 with the lead terminal 30 more convenient and stable.

Referring to FIG. 7 and FIG. 8 , the extending portion 544 of each of the protruding ribs 54 of the conductive member 50 has a top edge 544 a and a bottom edge 544 b substantially parallel to the extending direction D, and the tube body faces the tube body. And a pressing surface 544c for pressing against the wire terminal 30, and extending from the pressing surface 544c to the two inclined surfaces 544d of the top edge 544a and the bottom edge 544b respectively; thereby, although the slot 53 The width is substantially equal to the thickness of the flat portion 32, and each of the inclined surfaces 544d has an effect of guiding the flat portion 32 such that the flat portion 32 easily passes through the slot 53.

Since the conductive member 50 integrally forms the tubular body 51 and the protruding ribs 54 by stamping, the tubular body 51 has two through slots 514 at the contact surface 512, and the two through slots 514 respectively The extending portions 544 of the two protruding ribs 54 are opposite to each other. Further, the two through grooves 514 have a dividing rib 516. The dividing rib 516 has two inclined surfaces 516a respectively engaging with the two through grooves 514. The two inclined surfaces 516a are also guided. By the effect of the flat portion 32, the flat portion 32 can be avoided. The through slot 514 is inserted.

As shown in FIG. 7, the conductive member 50 further has a bump 55 protruding from the contact surface 512, and the bump 55 is located at the partition rib 516; as shown in FIG. 5, the lead terminal 30 further has A positioning hole 36 penetrating the flat plate portion 32. Therefore, when the flat portion 32 is inserted into the slot 53 and located at a specific position, the bump 55 is located in the positioning hole 36 of the wire terminal 30, so that not only the positioning function but also the wire terminal 30 can be further improved. Not easy to fall off.

Finally, it is to be noted that the constituent elements disclosed in the foregoing embodiments are merely illustrative and are not intended to limit the scope of the present invention, and alternative or variations of other equivalent elements should also be the scope of the patent application of the present application. Covered.

20‧‧‧Inline carbon brush holder

30‧‧‧ wire terminal

32‧‧‧ Flat section

34‧‧‧Bending

36‧‧‧Positioning holes

40‧‧‧Insulated shell

42‧‧‧ end face

44‧‧‧ Positioning Department

50‧‧‧Electrical parts

51‧‧‧ tube body

512‧‧‧Contact surface

52‧‧‧carbon brush installation slot

53‧‧‧ slots

54‧‧‧ protruding ribs

Claims (10)

An in-line carbon brush holder comprises: an insulating shell; and a conductive member having a tube body disposed in the insulating shell, a carbon brush mounting groove on the inner side of the tube body, and a tube body a slot outside the insulating case, the slot is configured to insert a wire terminal, wherein a side of the tube of the conductive member has a contact surface for contacting the wire terminal, and the conductive member has at least one of the wires The protruding rib of the contact surface is formed by the contact surface and the protruding rib. The in-line carbon brush holder of claim 1, wherein the protruding rib has a protrusion protruding from the contact surface, and a protrusion from the protrusion toward the substantially parallel An extending portion extending in the extending direction of the contact surface for clamping the wire terminal between the extending portion and the contact surface. The in-line carbon brush holder of claim 2, wherein the extending portion of the protruding rib has a top edge and a bottom edge substantially parallel to the extending direction, and a surface facing the tube body Pressing against the pressing surface of the wire terminal, and extending from the pressing surface to the inclined surface of the top edge and the bottom edge, respectively. The in-line carbon brush holder according to claim 2, wherein the conductive member has two protruding ribs, the tube body has two through grooves respectively opposite to the extending portions of the two protruding ribs, and a a dividing rib located between the two through grooves, the dividing ribs having two inclined faces respectively engaging with the two through grooves. The in-line carbon brush holder according to claim 4, wherein the insulating case has an end surface, and a positioning portion protruding from the end surface, the positioning portion has two longitudinal ribs, and the two longitudinal ribs are connected Lateral ribs, and separate bits Two positioning grooves on the two sides of the lateral rib and located between the two longitudinal ribs; the conductive member protrudes from the end surface, the two protruding ribs are located outside the insulating shell, and the two protruding ribs extend The portions are respectively inserted into the two positioning slots. The in-line type carbon brush holder according to claim 2, wherein the insulating case is provided with at least one positioning groove, the protruding rib is located outside the insulating case, and an extension of the protruding rib is inserted in the insulation The positioning groove of the shell. An in-line carbon brush holder and a wire terminal assembly, comprising: a plug-in carbon brush holder, comprising an insulating shell and a conductive member, the conductive member having a part of the tube body disposed in the insulating shell, a carbon brush mounting groove on the inner side of the tube body, and a slot located outside the tube body and located outside the insulating case, a contact surface and a protrusion protruding from the contact surface, wherein the conductive member has at least one a protruding rib of the contact surface, the slot is formed by the contact surface and the protruding rib; and a wire terminal having a flat plate portion, and a positioning hole provided in the flat plate portion, the flat plate portion is inserted The slot of the in-line carbon brush holder is in contact with the contact surface, and the protrusion is disposed in the positioning hole. The assembly of the in-line carbon brush holder and the wire terminal according to claim 7, wherein the protruding rib has a protrusion protruding from the contact surface, and a protrusion from the protrusion The in-line carbon brush holder clamps the lead terminal between the extending portion and the contact surface toward an extending portion extending substantially parallel to the extending direction of the contact surface. The assembly of the in-line carbon brush holder and the wire terminal according to claim 8 , wherein the conductive member of the in-line carbon brush holder has two protruding ribs, and the tube of the conductive member has respectively The extension of the two protruding ribs is relatively continuous a slot, and a partition rib between the two through slots, the bump being located at the partition rib. The assembly of the in-line carbon brush holder and the wire terminal according to claim 9, wherein the insulative housing of the in-line carbon brush holder has an end surface and a positioning portion protruding from the end surface, The positioning portion has two longitudinal ribs, a transverse rib connecting the two longitudinal ribs, and two positioning grooves respectively located on two sides of the lateral rib and located between the two longitudinal ribs; the conductive member of the in-line carbon brush holder is The two protruding ribs are located outside the insulating case, and the extending portions of the two protruding ribs are respectively inserted into the two positioning grooves.