Rectifier bridge terminal of automobile generator

Abstract

The utility model discloses a rectifier bridge terminal of an automobile generator, and belongs to the technical field of automobile generators. A diode wiring point and a stator wiring point are arranged on the terminal body; the diode wiring point comprises a welding seat fixed on the terminal body; a stepped hole is formed in the welding seat, the diode connecting wire penetrates into a large-diameter hole of the stepped hole from a small-diameter hole of the stepped hole, and the diode connecting wire is connected with the welding seat in the large-diameter hole in a tin soldering manner; a drainage hole communicated with the large-diameter hole is formed in one side face of the welding base. According to the utility model, the stepped hole is arranged in the diode wiring point, the diode wiring can conveniently penetrate into the large-diameter hole from the small-diameter hole and can be soldered in the large-diameter hole, and the spherical surface arranged at the inner end of the large-diameter hole can help to increase the contact area between the soldering point and the welding seat and improve the connection stability; and through the arrangement of the drainage holes, it is ensured that air in the large-diameter holes is smoothly exhausted in the welding process, and the welding quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile generator, specifically relates to a rectifier bridge terminal of automobile generator. BACKGROUND

[0002] The rectifier bridge terminal is a key component of the automobile generator, responsible for converting the alternating current generated by the generator into direct current for use by the automobile power system. The stability and reliability of the rectifier bridge terminal directly affect the operating efficiency and safety of the automobile power system. The existing rectifier bridge terminal generally uses a local deformation method to clamp the diode wiring, and then further connects and fixes it through soldering. This traditional diode wiring point design on the rectifier bridge terminal has the following disadvantages:

[0003] The local deformation method for clamping the diode wiring is not stable enough. During subsequent use, the vibration of the motor can cause the local deformation part to loosen, leading to unstable soldering points. Moreover, during the soldering process, there is no suitable limiting structure for the tin liquid, and the quality of the soldering points cannot be easily guaranteed. SUMMARY

[0004] The utility model aims at providing a rectifier bridge terminal of automobile generator for improving the connection stability of diode wiring and rectifier bridge terminal.

[0005] The utility model adopts the following technical scheme: a rectifier bridge terminal of automobile generator, comprising a terminal body, a diode wiring point and a stator wiring point are arranged on the terminal body;

[0006] The diode wiring point comprises a welding seat fixed on the terminal body.

[0007] A stepped hole is formed in the welding seat, the diode wiring passes through the small diameter hole of the stepped hole to the large diameter hole of the stepped hole, and the diode wiring is connected to the welding seat in the large diameter hole by soldering. A drainage hole is formed in one side of the welding seat and communicates with the large diameter hole.

[0008] Preferably, a first threaded hole is formed in the terminal body; an external thread is formed in one end of the welding seat close to the terminal body, an external hexagonal flat surface is formed in one end of the welding seat away from the terminal body, and the threaded end of the welding seat is connected in the first threaded hole.

[0009] Preferably, a circle of grooves is formed in one end of the first threaded hole close to the welding seat, and the outer end of the drainage hole is opposite to the grooves.

[0010] Preferably, the first threaded hole has a circle of bosses at one end away from the welding seat, and the threaded end of the welding seat abuts against the bosses.

[0011] Preferably, the stepped hole penetrates the shaft center of the welding seat, the inner end of the large-diameter hole is a spherical surface, and the outer end of the large-diameter hole has a necking.

[0012] Preferably, the drain hole is obliquely arranged, and the inner end of the drain hole is higher than the outer end of the drain hole.

[0013] Preferably, the small-diameter hole of the stepped hole is a cylindrical hole, and the outer end of the small-diameter hole has a tapered guide surface.

[0014] Preferably, the stator terminal point comprises a terminal body, and a terminal table is integrally formed with the terminal body, and a terminal hole for the stator terminal to pass through is formed in the terminal table; a second threaded hole is formed in the terminal table and is communicated with the terminal hole, and a bolt is installed in the second threaded hole.

[0015] Preferably, the terminal table has an inclined surface, the second threaded hole is formed on the inclined surface and is perpendicular to the inclined surface, and the second threaded hole and the terminal hole have an acute included angle.

[0016] Preferably, two diode terminal points are arranged, one stator terminal point is arranged, and the two diode terminal points are symmetrically arranged along the terminal hole.

[0017] The beneficial effects of the utility model lie in:

[0018] The stepped hole is arranged in the diode terminal point, the diode terminal can conveniently pass through the small-diameter hole and be positioned in the large-diameter hole, and then tin soldering connection is carried out; the inner end of the large-diameter hole is arranged as a spherical surface, which can help to increase the contact area between the tin soldering point and the welding seat and improve the stability of connection; the arrangement of the drain hole ensures that the air in the large-diameter hole is smoothly discharged during welding, thereby ensuring the welding quality; the annular groove formed between the welding seat and the terminal body can collect the tin liquid flowing out of the drain hole, thereby avoiding the tin liquid flowing to the surface of the terminal body and affecting subsequent installation.

[0019] The terminal table and the terminal hole are arranged in the stator terminal point, the stator terminal can be conveniently connected, and the inclined surface on the terminal table forms an acute included angle between the bolt and the stator terminal, so that after the bolt is tightened, the bolt can abut against the stator terminal, thereby effectively preventing the stator terminal from loosening or falling off under external force dragging. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0021] Figure 1A perspective view of the automobile generator rectifier bridge terminal provided by the utility model.

[0022] Figure 2 A top view of the automobile generator rectifier bridge terminal provided by the utility model.

[0023] Figure 3 For Figure 2 A-A section view.

[0024] Figure 4 For Figure 3 The enlarged view at C.

[0025] Figure 5 For Figure 2 B-B section view.

[0026] Figure 6 An exploded view of the automobile generator rectifier bridge terminal provided by the utility model.

[0027] The figure mark explanation: 1, terminal body;11, first threaded hole;12, sink groove;13, boss;2, welding seat;21, step hole;211, small diameter hole;212, large diameter hole;22, flow hole;3, wiring platform;31, wiring hole;32, second threaded hole;33, inclined surface;4, bolt. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0029] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0030] Embodiment one:

[0031] As Figure 1 shown, the utility model provides a kind of automobile generator rectifier bridge terminal, including terminal body 1 and two diode wiring points and a stator wiring point being set on terminal body 1, two diode wiring points are symmetrically arranged along stator wiring point.

[0032] As shown in Figures 1 to 4 , the diode terminal point comprises a solder seat 2 fixed on the terminal body 1, the solder seat 2 is perpendicular to the terminal body 1, a stepped hole 21 is formed on the solder seat 2 and penetrates the axis of the solder seat 2, the stepped hole 21 comprises a large-diameter hole 212 far away from the terminal body 1 and a small-diameter hole 211 close to the terminal body 1. In use, the diode wire is inserted from the small-diameter hole 211 of the stepped hole 21 and extends into the large-diameter hole 212; in the large-diameter hole 212, the diode wire is connected with the solder seat 2 by soldering.

[0033] The inner end of the large-diameter hole 212 is a spherical surface, and the outer end of the large-diameter hole 212 has a taper, so that the diode wire can form a stable connection structure after soldering in the large-diameter hole 212 and is not easy to shake. An inclined drainage hole 22 is formed on one side of the solder seat 2, and the inner end of the drainage hole 22 is connected to the large-diameter hole 212; during soldering of the diode wire and the solder seat 2, the inner end of the drainage hole 22 is higher than the outer end of the drainage hole 22, so that the air inside the large-diameter hole 212 can flow out of the drainage hole 22, ensuring the internal welding quality. The small-diameter hole 211 of the stepped hole 21 is a cylindrical hole, the outer end of the small-diameter hole 211 has a tapered guide surface, which facilitates the insertion of the diode wire from the outer end of the small-diameter hole 211, and the inner diameter of the small-diameter hole 211 is slightly larger than that of the diode wire. The appropriate length of the small-diameter hole 211 can be selected according to the specific situation, so that the tin liquid in the gap can be solidified in time and the tin liquid flowing out of the gap is minimized.

[0034] Example Two:

[0035] Based on the above-mentioned embodiment one, as shown in Figures 1 to 4 , and Figure 6 , a first threaded hole 11 for connecting the solder seat 2 is formed on the terminal body 1, a circle of grooves 12 is formed on the upper end of the first threaded hole 11, and a circle of bosses 13 is formed on the inner wall of the lower end. The lower end of the solder seat 2 is provided with external threads, and the threaded end of the solder seat 2 is fixed into the first threaded hole 11 by threaded connection, with the bosses 13 abutting against the lower end of the solder seat 2 to realize positioning of the solder seat 2. An outer hexagonal flat surface is formed on the upper end of the solder seat 2, which facilitates installation and disassembly. After the solder seat 2 is fixed to the terminal body 1, an annular groove is formed between the solder seat 2 and the grooves 12, and the outer end of the drainage hole 22 of the solder seat 2 is opposite to the annular groove. During soldering of the diode wire in the large-diameter hole 212, part of the tin liquid will flow into the annular groove through the drainage hole 22 and solidify, avoiding the tin liquid flowing to the surface of the terminal body 1 and affecting the subsequent installation of the terminal body 1.

[0036] Example Three:

[0037] Based on the above-mentioned embodiment one or two, as shown in Figure 1 ,Figure 5 and Figure 6 As shown in the figure, the stator connection point comprises a connection platform 3, the connection platform 3 is integrally formed with the terminal body 1, a connection hole 31 is formed in one side wall of the connection platform 3, the direction of the connection hole 31 is parallel to the terminal body 1, and two diode connection points are symmetrically arranged along the connection hole 31.

[0038] The connection platform 3 has an inclined surface 33 on the upper side, the inclined surface 33 is oppositely inclined to the terminal body 1. A second threaded hole 32 is formed in the inclined surface 33, the second threaded hole 32 is perpendicular to the inclined surface 33. The inner end of the second threaded hole 32 is communicated to the connection hole 31, and an acute angle is formed between the second threaded hole 32 and the connection hole 31 due to the arrangement of the inclined surface 33. In use, the stator wire is inserted into the connection hole 31 and beyond the inner end of the second threaded hole 32, a bolt 4 is installed in the second threaded hole 32 through threaded connection, the inner end of the bolt 4 is pressed against the stator wire in the connection hole 31, and the bolt 4 forms an acute angle with the stator wire in the insertion direction of the stator wire, so as to avoid loosening and falling of the stator wire under external dragging.

[0039] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A rectifier bridge terminal for an automotive generator, comprising a terminal body (1), wherein a diode connection point and a stator connection point are provided on the terminal body (1); Its features are: The diode connection point includes a soldering base (2) fixed on the terminal body (1); The welding seat (2) has a stepped hole (21). The diode wire passes through the small diameter hole (211) of the stepped hole (21) to the large diameter hole (212) of the stepped hole (21). The diode wire is connected to the welding seat (2) in the large diameter hole (212) by soldering. A drain hole (22) is provided on one side of the welding seat (2) and connects to the large diameter hole (212).

2. The automotive alternator rectifier bridge terminal according to claim 1, characterized in that: The terminal body (1) is provided with a first threaded hole (11); the welding seat (2) is provided with an external thread at one end near the terminal body (1), and an external hexagonal plane at one end away from the terminal body (1). The threaded end of the welding seat (2) is connected to the first threaded hole (11).

3. The automotive alternator rectifier bridge terminal according to claim 2, characterized in that: The first threaded hole (11) has a groove (12) at one end near the welding seat (2), and the outer end of the drain hole (22) is opposite to the groove (12).

4. The automotive alternator rectifier bridge terminal according to claim 3, characterized in that: The first threaded hole (11) has a boss (13) at the end away from the welding seat (2), and the threaded end of the welding seat (2) abuts against the boss (13).

5. The automotive alternator rectifier bridge terminal according to claim 1, characterized in that: The stepped hole (21) passes through the axis of the welding seat (2), the inner end of the large diameter hole (212) is a spherical surface, and the outer end of the large diameter hole (212) has a constriction.

6. The automotive alternator rectifier bridge terminal according to claim 5, characterized in that: The drain hole (22) is inclined, and the inner end of the drain hole (22) is higher than the outer end of the drain hole (22).

7. The automotive alternator rectifier bridge terminal according to claim 5, characterized in that: The small-diameter hole (211) of the stepped hole (21) is a cylindrical hole, and the outer end of the small-diameter hole (211) has a tapered guide surface.

8. The automotive alternator rectifier bridge terminal according to claim 1, characterized in that: The stator connection point includes a terminal block (3) integrally formed with the terminal body (1), and the terminal block (3) is provided with a terminal hole (31) for the stator connection to pass through; the terminal block (3) is provided with a second threaded hole (32) that connects to the terminal hole (31), and a bolt (4) is installed in the second threaded hole (32).

9. A rectifier bridge terminal for an automotive alternator according to claim 8, characterized in that: The terminal block (3) has an inclined surface (33), the second threaded hole (32) is opened on the inclined surface (33) and is perpendicular to the inclined surface (33), and there is an acute angle between the second threaded hole (32) and the terminal hole (31).

10. A rectifier bridge terminal for an automotive alternator according to claim 8, characterized in that: The diode has two connection points and the stator has one connection point. The two diode connection points are symmetrically arranged along the connection hole (31).

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