CN116111771A

CN116111771A - Connector terminal structure for direct current motor

Info

Publication number: CN116111771A
Application number: CN202310389914.0A
Authority: CN
Inventors: 张波; 尹利平; 盛世龙; 王磊; 张运昌
Original assignee: Sichuan Fusheng Electric Appliance Co ltd; Sichuan Fusheng Auto Parts Co ltd
Current assignee: Sichuan Fusheng Electric Appliance Co ltd; Sichuan Fusheng Auto Parts Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-05-12
Anticipated expiration: 2043-04-13
Also published as: CN116111771B

Abstract

The invention discloses a connector terminal structure for a direct current motor, which comprises a negative connector and a positive connector, wherein the negative connector comprises a first vertical plate and a second vertical plate, a first connecting plate is fixedly arranged on the lower side of the second vertical plate, a first extension plate is fixedly arranged on the first connecting plate, a second connecting plate is fixedly arranged at one end of the first extension, and a first clamping plate is fixedly arranged on the second connecting plate; the positive connector comprises a mounting plate, a second extending plate is fixedly mounted on one vertical surface in the width direction of the mounting plate, a third connecting plate is fixedly mounted on the second extending plate, and a second clamping plate is fixedly mounted at one end, far away from the third connecting plate, of the third connecting plate. The invention greatly improves the space utilization rate of the end cover, thereby reducing the size of the motor and playing a role in reducing the cost; through performance test and reliability test, the method meets the technical requirements, and has no adverse reaction in production trial; in general, the connector terminal of the invention has simple installation, high quality and good consistency.

Description

Connector terminal structure for direct current motor

Technical Field

The invention relates to the technical field of motor accessories, in particular to a connector terminal structure for a direct current motor.

Background

The BDC motor mainly comprises four parts: 1, an armature; 2, a reverser; 3, electric brushes; and 4, a stator. In addition to these four main components, BDC motors have many auxiliary electrical components, including capacitors, inductors, and various types of terminals. The main function of the terminal is to connect electrical components and transmit current, so the material of the terminal is generally copper alloy, and the copper alloy has good electrical performance, mechanical performance and environmental performance. At present, the global BDC motor is developed in light weight and miniaturization to achieve the aim of reducing the cost, so that the BDC motor has stricter requirements on the structural design of the BDC motor, wherein the design of a terminal structure is important, because the terminal structure is related to the integral structure and the arrangement of parts of the BDC motor. Therefore, we propose a connector terminal structure for a dc motor to meet the development needs of the BDC motor in light weight and miniaturization.

Disclosure of Invention

The invention mainly aims to provide a connector terminal structure for a direct current motor, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a connector terminal structure for direct current motor, including negative electrode connector and positive electrode connector, the negative electrode connector is including the riser and the riser of No. two relative interval sets up, the same side of riser and riser is fixed mounting has the connecting strip jointly, the one end downside fixed mounting who keeps away from riser on the riser of No. two, the one end fixed mounting who keeps away from riser on the connecting plate has a extension board, the one end fixed mounting that the extension board deviates from extension board has No. two connecting plates, the one end fixed mounting that keeps away from extension board on the connecting plate of No. two is provided with a cardboard; the positive connector comprises a mounting plate, a third vertical plate is fixedly arranged on one vertical surface in the length direction of the mounting plate, the top end of the third vertical plate vertically extends to the upper side of the mounting plate, a second extending plate is fixedly arranged on one vertical surface in the width direction of the mounting plate, the second extending plate downwardly extends, a third connecting plate is fixedly arranged at one end, far away from the mounting plate, of the second extending plate, and a second clamping plate is fixedly arranged at one end, far away from the third connecting plate, of the third connecting plate.

Preferably, the bottom end fixing of the first vertical plate is provided with a negative electrode terminal, the top end of the first vertical plate is fixedly provided with two first extending parts and a second extending part, the second extending part is located between the two first extending parts, the second extending parts are arranged at intervals with the first extending parts, the second extending parts incline to a direction away from the second vertical plate, and the inclination angle of the second extending parts is 9 degrees.

Preferably, the two ends of the first connecting plate are fixedly provided with first buckle plates, the two first buckle plates are oppositely arranged, and the two first buckle plates form a buckling structure above the first connecting plate.

Preferably, the top end of the first clamping plate is fixedly provided with two first panels and a first limiting plate, the first limiting plate is positioned between the two first panels, and the first panels are bent towards one side of the second vertical plate.

Preferably, two ends of the first clamping plate are fixedly provided with second clamping plates which are oppositely arranged, and the second clamping plates form a buckling structure on one side of the first clamping plate away from the second connecting plate; both ends of a cardboard all are provided with a draw-in groove, and two draw-in grooves are located the top of two No. two buckle respectively.

Preferably, a through groove penetrating through the upper end and the lower end of the mounting plate is formed in the mounting plate, one end of the mounting plate, which is far away from the second extending plate, protrudes to form a third extending portion, the tail end of the third extending portion is fixedly provided with a connecting portion, and the tail end of the connecting portion is fixedly provided with a positive terminal.

Preferably, one end of the mounting plate, which is far away from the second extension plate, and a groove wall surface of the through groove, which is far away from the second extension plate, are fixedly provided with third buckle plates, the two third buckle plates are oppositely arranged, and the two third buckle plates form a buckling structure above the mounting plate.

Preferably, the top of the second clamping plate is fixedly provided with two second panels and a second limiting plate, the second limiting plate is positioned between the two second panels, and the second panels are bent towards one side of the third connecting plate.

Preferably, the two ends of the second clamping plate are fixedly provided with fourth buckle plates which are oppositely arranged, and the two fourth buckle plates form a buckling structure on one side of the second clamping plate away from the third connecting plate; two ends of the second clamping plate are provided with second clamping grooves, and the second clamping grooves are respectively located above the fourth clamping plates.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention relates to a connector terminal structure for a direct current motor, which is divided into a negative connector and a positive connector, wherein the negative connector and the positive connector are connected with a connector female end in a BDC motor when in use, power supply current sequentially passes through the positive terminal, an inductor, a carbon brush, a commutator, an armature, the carbon brush, the inductor and the negative terminal to form a loop, when current flows through the armature, a magnetic field is generated on the armature, and the magnetic field interacts with a main magnetic field generated by a stator to enable the motor to rotate. The capacitor is connected with the negative terminal and the positive terminal in parallel with the working circuit, plays roles of filtering, noise reduction and electromagnetic spark prevention, and after the motor frame is installed, the bottom of the motor frame can be pressed on the second extending part in the negative connector to form negative grounding, so that the motor is protected.

2. The connector terminal structure for the direct current motor greatly improves the space utilization rate of the end cover, reduces the size of the motor and plays a role in reducing cost; through performance test and reliability test, the method meets the technical requirements, and has no adverse reaction in production trial; in general, the connector terminal of the invention has simple installation, high quality and good consistency.

Drawings

FIG. 1 is an overall block diagram of a connector terminal structure for a DC motor according to the present invention;

FIG. 2 is a schematic view of a negative electrode connector;

FIG. 3 is a detail view of the negative connector;

FIG. 4 is a schematic view of a positive connector;

fig. 5 is a detail view of the positive connector.

In the figure: 1. a negative electrode connector; 2. a positive electrode connector; 11. a first vertical plate; 111. a negative electrode terminal; 12. a second vertical plate; 112. a first extension; 113. a second extension; 13. a connecting strip; 14. a first connecting plate; 141. a first buckle plate; 15. a first extension plate; 16. a second connecting plate; 17. a first clamping plate; 171. a first limiting plate; 172. a first panel; 173. a second buckle plate; 18. a first clamping groove; 21. a mounting plate; 22. a third vertical plate; 23. a second extension plate; 24. a third connecting plate; 25. a second clamping plate; 26. a second clamping groove; 211. a third extension; 212. a connection part; 213. a positive electrode terminal; 221. a through groove; 222. a third buckle plate; 251. a second limiting plate; 252. a second panel; 253. and a fourth buckle plate.

Description of the embodiments

The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 5, a connector terminal structure for a direct current motor comprises a negative electrode connector 1 and a positive electrode connector 2, wherein the negative electrode connector 1 and the positive electrode connector 2 are manufactured in a stamping and bending mode. The cathode connector 1 and the anode connector 2 are connected with a connector female end in the BDC motor, wherein the cathode connector 1 comprises a first vertical plate 11 and a second vertical plate 12 which are oppositely arranged at intervals, a connecting strip 13 is fixedly arranged on the same side of the first vertical plate 11 and the second vertical plate 12 together, the connecting strip 13 is close to the bottom ends of the first vertical plate 11 and the second vertical plate 12, a first connecting plate 14 is fixedly arranged on the lower side of one end, far away from the first vertical plate 11, of the second vertical plate 12, a first extending plate 15 is fixedly arranged on one end, far away from the second vertical plate 12, of the first connecting plate 14, a second connecting plate 16 is fixedly arranged on one end, far away from the first extending plate 15, of the first extending plate 15, the second connecting plate 16 is vertically arranged, and a first clamping plate 17 is fixedly arranged on one end, far away from the first extending plate 15, of the second connecting plate 16; the positive electrode connector 2 comprises a mounting plate 21, a third vertical plate 22 is fixedly arranged on one vertical surface in the length direction of the mounting plate 21, the top end of the third vertical plate 22 vertically extends to the upper side of the mounting plate 21, a second extending plate 23 is fixedly arranged on one vertical surface in the width direction of the mounting plate 21, the second extending plate 23 extends downwards, a third connecting plate 24 is fixedly arranged on one end, far away from the mounting plate 21, of the second extending plate 23, and a second clamping plate 25 is fixedly arranged on one end, far away from the third connecting plate 24, of the third connecting plate 24.

In the negative electrode connector 1 and the positive electrode connector 2, when the negative electrode connector 1 and the positive electrode connector 2 are both fitted into the BDC motor and connected to the female connector end in the BDC motor, the first extending plate 15 and the second extending plate 23 are distributed in a splayed shape, and the second connecting plate 16 and the third connecting plate 24 are respectively close to the distal ends of the first extending plate 15 and the second extending plate 23.

As a further explanation of the above technical solution, the bottom end of the first vertical plate 11 is fixedly provided with the negative electrode terminal 111, the negative electrode terminal 111 is of a U-shaped plate structure, the opening faces one side far away from the second vertical plate 12, the negative electrode terminal 111 is connected with a capacitor in the BDC motor, the top end of the first vertical plate 11 is fixedly provided with two first extending portions 112 and one second extending portion 113, the second extending portion 113 is located between the two first extending portions 112, the second extending portion 113 and the first extending portion 112 are arranged at intervals, the second extending portion 113 is inclined to one side far away from the second vertical plate 12, the inclination angle of the second extending portion 113 is 9 degrees, the first vertical plate 11, the two first extending portions 112 and the second extending portion 113 jointly form a three-fork structure, the second extending portion 113 contacts with the motor frame to enable the circuit negative electrode to be grounded, and the purpose is to play a role in protecting when the circuit is shorted or a fire is generated.

The mounting plate 21 is provided with a through groove 221 penetrating through the upper end and the lower end of the mounting plate 21, one end of the mounting plate 21, which is far away from the second extension plate 23, protrudes to form a third extension portion 211, the tail end of the third extension portion 211 is fixedly provided with a connecting portion 212, the tail end of the connecting portion 212 is fixedly provided with a positive terminal 213, the positive terminal 213 is of a U-shaped plate-shaped structure, the opening direction is consistent with the inclination direction of the second extension portion 113, and the positive terminal 213 is connected with a capacitor in the BDC motor.

The capacitor in the BDC motor is connected with the negative terminal 111 and the positive terminal 213, so that the motor operation circuit is connected in parallel, and the functions of filtering, noise reduction and electromagnetic spark prevention are achieved.

As a further explanation of the above technical solution, the first buckle plates 141 are fixedly installed at both ends of the first connecting plate 14, the two first buckle plates 141 are disposed opposite to each other, and the two first buckle plates 141 form a buckle-shaped structure above the first connecting plate 14. Two ends of the first clamping plate 17 are fixedly provided with second buckling plates 173, the two second buckling plates 173 are oppositely arranged, and the two second buckling plates 173 form a buckling structure on one side, away from the second connecting plate 16, of the first clamping plate 17. The mounting plate 21 is provided with a third buckle plate 222 at one end far away from the second extension plate 23 and a groove wall surface of the through groove 221 far away from the second extension plate 23, the two third buckle plates 222 are oppositely arranged, and the two third buckle plates 222 form a buckling structure above the mounting plate 21. The both ends of No. two cardboard 25 are all fixed mounting have No. four buckle 253, and two No. four buckle 253 are relative setting, and two No. four buckle 253 are kept away from the one of No. three connecting plates 24 at No. two cardboard 25 and are formed and withhold the column structure.

The first buckle plate 141, the second buckle plate 173, the third buckle plate 222 and the fourth buckle plate 253 are used for fixedly mounting the negative electrode connector 1 and the positive electrode connector 2 on an end cover of the BDC motor, and the installation of the negative electrode connector 1 and the positive electrode connector 2 on the end cover of the BDC motor is realized through buckling structures formed on the end cover of the BDC motor by the first buckle plate 141, the second buckle plate 173, the third buckle plate 222 and the fourth buckle plate 253; in a specific embodiment, in order to facilitate the installation of the negative electrode connector 1 and the positive electrode connector 2 and improve the installation firmness of the negative electrode connector 1 and the positive electrode connector 2, the end cover of the BDC motor is provided with a caulking groove matched with the negative electrode connector 1 and the positive electrode connector 2.

As a further explanation of the above-described technical scheme, two first panels 172 and a first limiting plate 171 are fixedly provided at the top end of the first clamping plate 17, the first limiting plate 171 is located between the two first panels 172, and the first panels 172 are bent toward one side of the second riser 12. The top end of the second clamping plate 25 is fixedly provided with two second panels 252 and a second limiting plate 251, the second limiting plate 251 is positioned between the two second panels 252, and the second panels 252 are bent towards one side of the third connecting plate 24. The first panel 172, the first limiting plate 171, the second panel 252 and the second limiting plate 251 are all clamped with the cover plate in the BDC motor, so that the auxiliary installation and fixation functions are achieved.

As a further explanation of the above technical solution, the first clamping plates 17 are provided with first clamping grooves 18 at both ends, and the two first clamping grooves 18 are respectively located above the two second clamping plates 173; two ends of the second clamping plate 25 are provided with second clamping grooves 26, and the second clamping grooves 26 are respectively located above the fourth clamping plates 253. Both the first clamping groove 18 and the second clamping groove 26 are used for clamping copper wires of an inductor in the BDC motor, and the inductor in the BDC motor is connected with the negative electrode connector 1 and the positive electrode connector 2 in a welding mode.

The invention is a connector terminal structure for a direct current motor, which is divided into a negative connector 1 and a positive connector 2, wherein the negative connector 1 and the positive connector 2 are connected with a connector female end in a BDC motor in use, and a power supply current sequentially passes through the positive terminal 213, an inductor, a carbon brush, a commutator, an armature, a carbon brush, an inductor and the negative terminal 111 to form a loop, when the current flows through the armature, a magnetic field is generated on the armature, and the magnetic field interacts with a main magnetic field generated by a stator, so that the motor rotates. The capacitor is connected with the negative terminal 111 and the positive terminal 213 in parallel with the working circuit, plays roles in filtering, noise reduction and electromagnetic spark prevention, and after the motor frame is installed, the bottom of the motor frame is pressed on the second extension part 113 in the negative connector 1 to form negative grounding, so that the motor is protected.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A connector terminal structure for direct current motor, includes negative pole connector (1) and anodal connector (2), its characterized in that: the negative electrode connector (1) comprises a first vertical plate (11) and a second vertical plate (12) which are arranged at opposite intervals, connecting strips (13) are fixedly installed on the same side of the first vertical plate (11) and the second vertical plate (12) together, a first connecting plate (14) is fixedly installed on the lower side of one end, far away from the first vertical plate (11), of the second vertical plate (12), a first extending plate (15) is fixedly installed on one end, far away from the second vertical plate (12), of the first connecting plate (14), a second connecting plate (16) is fixedly installed on one end, far away from the first extending plate (15), of the first extending plate (15), and a first clamping plate (17) is fixedly arranged on one end, far away from the first extending plate (15), of the second connecting plate (16); the positive electrode connector (2) comprises a mounting plate (21), a vertical surface on the length direction of the mounting plate (21) is fixedly provided with a third vertical plate (22), the top of the third vertical plate (22) vertically extends to the upper side of the mounting plate (21), a second extending plate (23) is fixedly arranged on a vertical surface on the width direction of the mounting plate (21), the second extending plate (23) downwardly extends, a third connecting plate (24) is fixedly arranged on one end, far away from the mounting plate (21), of the second extending plate (23), and a second clamping plate (25) is fixedly arranged on one end, far away from the third connecting plate (24), of the third connecting plate (24).

2. A connector terminal structure for a direct current motor as claimed in claim 1, wherein: the bottom end fixing of a riser (11) is provided with negative pole terminal (111), the fixed extension portion (112) and the extension portion (113) No. two that are provided with in top of a riser (11), extension portion (113) No. two are located between extension portion (112) No. two, and extension portion (113) No. two and extension portion (112) interval setting, extension portion (113) No. two is to the one slope of keeping away from No. two riser (12), and the inclination of extension portion (113) No. two is 9 degrees.

3. A connector terminal structure for a direct current motor as claimed in claim 1, wherein: the two ends of the first connecting plate (14) are fixedly provided with first buckle plates (141), the two first buckle plates (141) are oppositely arranged, and the two first buckle plates (141) form a buckling structure above the first connecting plate (14).

4. A connector terminal structure for a direct current motor as claimed in claim 1, wherein: the top of the first clamping plate (17) is fixedly provided with two first panels (172) and a first limiting plate (171), the first limiting plate (171) is located between the two first panels (172), and the first panels (172) are bent towards one side of the second vertical plate (12).

5. A connector terminal structure for a direct current motor as claimed in claim 1, wherein: two ends of the first clamping plate (17) are fixedly provided with second buckling plates (173), the two second buckling plates (173) are oppositely arranged, and the two second buckling plates (173) form a buckling structure on one side, away from the second connecting plate (16), of the first clamping plate (17); both ends of the first clamping plate (17) are provided with first clamping grooves (18), and the two first clamping grooves (18) are respectively positioned above the two second clamping plates (173).

6. A connector terminal structure for a direct current motor as claimed in claim 1, wherein: the mounting plate (21) is provided with a through groove (221) penetrating through the upper end and the lower end of the mounting plate (21), one part of one end of the mounting plate (21) far away from the second extending plate (23) protrudes to form a third extending part (211), the tail end of the third extending part (211) is fixedly provided with a connecting part (212), and the tail end of the connecting part (212) is fixedly provided with a positive terminal (213).

7. A connector terminal structure for a direct current motor as claimed in claim 2, wherein: the mounting plate (21) is far away from one end of the second extending plate (23), the through groove (221) is far away from a groove wall surface of the second extending plate (23), the third buckle plates (222) are fixedly arranged, the two third buckle plates (222) are oppositely arranged, and the two third buckle plates (222) form a buckling structure above the mounting plate (21).

8. A connector terminal structure for a direct current motor as claimed in claim 1, wherein: the top of No. two cardboard (25) is fixed to be provided with two No. two panels (252) and No. two limiting plates (251), no. two limiting plates (251) are located between two No. two panels (252), no. two panels (252) are crooked towards one side of No. three connecting plates (24).

9. A connector terminal structure for a direct current motor as claimed in claim 1, wherein: the two ends of the second clamping plate (25) are fixedly provided with fourth buckle plates (253), the two fourth buckle plates (253) are oppositely arranged, and the two fourth buckle plates (253) form a buckling structure on one side, far away from the third connecting plate (24), of the second clamping plate (25); two ends of the second clamping plate (25) are respectively provided with a second clamping groove (26), and the two second clamping grooves (26) are respectively positioned above the two fourth clamping plates (253).