Electrode brush holder ring and sheath integrated housing

Abstract

The utility model relates to the technical field of automobile motor accessories, and discloses an electrode brush holder ring and sheath integrated shell, which comprises a brush holder ring shell and a sheath shell, and the brush holder ring shell and the sheath shell are integrally formed. According to the utility model, the design is ingenious, and the brush holder ring shell and the sheath shell are injection-molded into the integrated structure, so that when the brush holder ring shell and the sheath shell are produced, the brush holder ring shell and the sheath shell which are in the integrated structure are directly injection-molded instead of being produced separately, thereby reducing the production time cost and improving the production efficiency. The production efficiency is improved; meanwhile, manual insertion operation is not needed any more, the connection stability of the brush holder ring shell and the sheath shell is guaranteed, and the connection reliability of the brush holder ring shell and the sheath shell is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile motor accessories, and specifically relates to an electrode brush holder ring and sheath integrated shell. BACKGROUND

[0002] The existing motor adopts a brush holder ring structure including a brush holder ring component, a spring component and a baffle, wherein the brush holder ring component is annular, and the brush holder ring component, the spring component and the baffle are in a split structure. The baffle functions to fix a ball bearing in cooperation with a bearing chamber of a reduction housing; the brush holder ring functions to ensure the cooperation distance between an electric brush and a commutator and to assemble other components; and the spring component functions to collect a signal of the motor "stopping" (stopping working). The brush holder ring structure of this structure has the following disadvantages:

[0003] The brush holder ring structure has the brush holder ring component, the spring component and the baffle in a split structure, and therefore, the brush holder ring structure is relatively complex and is tedious to assemble; at the same time, the annular brush holder ring component is not easy to operate when assembling the electric pivot component. In order to solve the above technical problems, the Chinese patent document (CN107994718A) discloses a novel brush holder ring component structure for a rear wiper motor, the lower part of the brush holder ring body adopts a semi-circular ring opening structure corresponding to the baffle; the brush holder ring part and the baffle and the spring component in the rear wiper motor are designed as a whole, and at the same time, the circuit connection between the brush holder ring component and the plug sheath adopts a contact spring sheet and plug sheet cooperation connection mode.

[0004] The above technical solution can reduce the technical problem of tedious assembly caused by the split structure by designing the baffle and the spring part as a whole to form the brush holder ring component, and by connecting the brush holder ring component and the plug sheath through the contact spring sheet and the plug sheet, but in the actual use process, since the plug sheet of the plug sheath needs to be inserted into the contact spring sheet and the brush holder ring component, the plug sheath and the brush holder ring component need to be produced separately in the production process, which increases the production time cost, and after the plug sheath and the brush holder ring component are produced separately, the plug sheet of the plug sheath needs to be inserted into the contact spring sheet of the brush holder ring component manually, which increases the labor cost of production, and the connection between the plug sheath and the brush holder ring component is not stable, and the reliability of the connection is poor, thereby affecting the performance of the motor. UTILITY MODEL CONTENTS

[0005] The utility model intends to provide an electrode brush holder ring and sheath integrated shell, which can solve the above technical problems of cost and reliability.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] 1) Electrode brush holder ring and sheath integrated shell, comprising a brush holder ring shell and a sheath shell, the brush holder ring shell and the sheath shell are integrally formed.

[0008] The utility model discloses a clever design, through the brush holder ring shell and sheath shell injection molding integrated structure, therefore, when producing brush holder ring shell and sheath shell, no longer need to produce brush holder ring shell and sheath shell separately, but direct injection molding integrated structure's brush holder ring shell and sheath shell, thereby reduce production time cost, production efficiency improves, simultaneously no longer need manual operation to plug, guarantee the stability of brush holder ring shell and sheath shell's connection, to improve the reliability of the link between both.

[0009] 2) The electrode brush holder ring and sheath integrated shell according to 1), wherein:

[0010] The brush holder ring shell and the sheath shell have a horizontally outwardly extending extension plate, the end of the extension plate is integrally formed with the brush holder ring shell and the sheath shell by injection molding, and the extension plate and the brush holder ring shell together have a containing space for supporting and fixing the internal circuit of the brush holder ring.

[0011] The utility model discloses an extension plate and brush holder ring shell support the internal circuit of brush holder ring together, and fix the internal circuit of brush holder ring, simultaneously, extension plate, brush holder ring shell and sheath shell three injection molding integrated structure, to guarantee the stability of three connections, improve the reliability of its internal circuit.

[0012] 3) The electrode brush holder ring and sheath integrated shell according to 2), wherein:

[0013] The extension plate is provided with two bending blocks in the radial direction thereof, the bending blocks have a whole "7" shape, and the inner top of the bending blocks is used for abutting against the internal circuit of the brush holder ring.

[0014] The utility model discloses two bending blocks of "7" shape structure of extension plate setting, to realize the fixation of the internal circuit of brush holder ring, keep the stability of the internal circuit of brush holder ring, so as to improve the link reliability between the internal circuit of brush holder ring and the internal circuit of sheath.

[0015] 4) The electrode brush holder ring and sheath integrated shell according to 3), wherein:

[0016] The extension plate is provided with an arc-shaped protrusion at the rear end of the bending block, and the upper surface of the arc-shaped protrusion is in contact with the internal circuit of the brush holder ring.

[0017] In order to ensure that the internal circuit of the brush holder ring is firmly fixed on the extension plate, the upper surface of the arc-shaped protrusion on the extension plate and located at the rear end of the bending block is in contact with the internal circuit of the brush ring holder, so that the contact area between the internal current of the brush holder ring and the extension plate is increased, the friction force is increased, and the internal circuit of the brush holder ring is firmly fixed on the extension plate.

[0018] 5) The electrode brush holder ring and sheath integrated shell according to 1), wherein:

[0019] The brush holder ring shell has a first fixing chamber, a second fixing chamber and a third fixing chamber, the first fixing chamber is used for fixing the inductor of the internal circuit of the brush holder ring, the second fixing chamber is used for fixing the second brush of the internal circuit of the brush holder ring, and the third fixing chamber is used for fixing the first brush of the internal circuit of the brush holder ring.

[0020] The first fixing chamber, the second fixing chamber and the third fixing chamber are used for fixing the inductor, the first brush and the second brush of the internal circuit of the brush holder ring respectively, so that the internal circuit of the brush holder ring is fixed in the brush holder ring shell, and the internal circuit of the brush holder ring and the internal circuit of the sheath form an integrated structure.

[0021] 6) The electrode brush holder ring and sheath integrated shell according to 5), wherein:

[0022] A first torsional spring column is arranged on the brush holder ring shell and close to the second fixing chamber, a first torsional spring is sleeved on the first torsional spring column, and the first torsional spring is connected with the first brush in the brush holder ring shell.

[0023] In order to support and fix the first brush in the brush holder ring shell, a first limiting groove is arranged at the bottom of the first brush and used for embedding the end of the first torsional spring, and the first torsional spring is sleeved on the first torsional spring column, so that the first brush is stably supported through the torsional force of the first torsional spring, and the stability of the first brush is maintained.

[0024] 7) The electrode brush holder ring and sheath integrated shell according to 5), wherein:

[0025] A second torsional spring column is arranged on the brush holder ring shell and close to the third fixing chamber, a second torsional spring is sleeved on the second torsional spring column, and the second torsional spring is connected with the second brush in the brush holder ring shell.

[0026] In order to support and fix the second brush in the brush holder ring shell, a first limiting groove is arranged at the bottom of the first brush and used for embedding the end of the first torsional spring, and the first torsional spring is sleeved on the first torsional spring column, so that the first brush is stably supported through the torsional force of the first torsional spring, and the stability of the first brush is maintained.

[0027] 8) The electrode brush holder ring and sheath integrated shell according to 5), wherein:

[0028] The brush holder ring shell is further provided with a ring shell in a semi-circular ring structure, a bottom hole for the first brush to pass through and a side hole for the second brush to pass through are arranged on the ring surface of the ring shell, and the first torsional spring column and the second torsional spring column are arranged in the ring shell.

[0029] The ring shell in the semi-circular ring structure is convenient to assemble to the motor, is convenient and simple to operate, meanwhile, the bottom hole and the side hole designed in the ring shell are matched with the first torsional spring column and the second torsional spring column respectively, stable fixing of the first brush and the second brush is realized, and the reliability of assembly connection is maintained.

[0030] 9) The integrated electrode brush holder ring and sheath structure according to 1), wherein:

[0031] The sheath shell has a connecting groove corresponding to the internal circuit of the brush holder ring, and the connecting groove and the brush holder ring shell form an integrated structure.

[0032] The connecting groove is adopted to realize connection with external equipment, so that the internal circuit of the brush holder ring can be connected with the external equipment through the connecting groove.

[0033] Compared with the prior art, the utility model still has following technical effects:

[0034] The brush holder ring shell and the sheath shell are integrally injection molded, the production line is simplified, only the brush holder ring shell and the sheath shell of integrated structure need to be injection molded, production efficiency is improved, and production time cost is reduced; the internal circuit of the brush holder ring shell is communicated with the internal circuit of the sheath to form an integrated structure, replacing the split structure in the prior art, therefore, circuit connection of the utility model is more stable, reliability is high, and the performance of the motor is improved BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a front view structure schematic diagram of the utility model electrode brush holder ring and sheath integrated shell.

[0036] Figure 2 It is a front view structure schematic diagram of the utility model electrode brush holder ring and sheath integrated shell. DETAILED DESCRIPTION

[0037] The following is further described in detail through specific embodiments:

[0038] The reference signs in the drawings of the specification include: plug shell 1, brush holder ring shell 2, extension plate 3, first spring sheet 4, second spring sheet 5, arc-shaped protrusion 6, bending block 7, protrusion head 8, clamping head 9, contact wire 10, capacitor 11, inductor 12, first torsion spring column 13, first electric brush 14, ring-shaped shell 15, second torsion spring column 16, second torsion spring 17, second electric brush 18, first fixed chamber 19, second fixed chamber 20, third fixed chamber 21, connecting groove 22.

[0039] Embodiment, see Figure 1 and Figure 2 The electrode brush holder ring and sheath integrated shell in the embodiment includes the brush holder ring shell 2 and the sheath shell 1, and the brush holder ring shell 2 and the sheath shell 1 are integrally injection molded, wherein the brush holder ring shell 2 has the first electric brush 14, the second electric brush 18 and the first spring sheet 4, and the sheath shell 1 has the first insertion sheet, the second insertion sheet and the third insertion sheet extending along the length direction of the brush holder ring shell 2 and being bent downward.

[0040] The sheath shell 1 has the connecting groove 22, and the first insertion sheet, the second insertion sheet and the third insertion sheet are arranged side by side and extend into the connecting groove 22. The connecting groove 22 is used to realize the connection with external equipment, so that the first insertion sheet, the second insertion sheet and the third insertion sheet can be connected in a directional manner, and the internal circuit of the brush holder ring is connected with the external equipment through the first insertion sheet, the second insertion sheet and the third insertion sheet and the connecting groove 22.

[0041] Meanwhile, the brush holder ring shell 2 is provided with the first torsion spring column 13, the first torsion spring 26 is sleeved on the first torsion spring column 13, the bottom of the first electric brush 14 is provided with a first limiting groove, and the end of the first torsion spring towards the first electric brush 14 is embedded into the first limiting groove. In order to support and fix the first electric brush 14 in the brush holder ring shell, the first limiting groove provided at the bottom of the first electric brush 14 is used for embedding the end of the first torsion spring 26, and the first torsion spring 26 is sleeved on the first torsion spring column 13, so that the first electric brush 14 is stably supported by the torsion force of the first torsion spring 26, and the stability of the first electric brush 14 is maintained.

[0042] In addition, the brush holder ring shell 2 is also provided with a ring-shaped shell in a semi-circular ring structure, the ring surface of the ring-shaped shell is provided with a bottom hole for the first electric brush 14 to pass through and a side hole for the second electric brush 18 to pass through, and the first torsion spring column 13 and the second torsion spring column 16 are arranged in the ring-shaped shell.

[0043] The ring-shaped shell in the semi-circular ring structure is convenient to assemble in the motor, and the operation is simple and convenient. Meanwhile, the bottom hole and the side hole designed in the ring-shaped shell are matched with the first torsion spring column 13 and the second torsion spring column 16 respectively, so that the first electric brush 14 and the second electric brush 18 are stably fixed, and the reliability of the assembly connection is maintained.

[0044] In the embodiment, the first tab 21 extends towards the first spring 4 near the end of the brush holder ring shell 2 and is welded with the first spring 4 to form the first circuit line, the second tab 22 extends towards the inside of the brush holder ring shell 2 and cooperates with the second brush 18 to form the second circuit line, and the third tab 23 extends towards the inside of the brush holder ring shell 2 and cooperates with the first brush 14 to form the third circuit line, so that the internal circuit of the brush holder ring and the internal circuit of the sheath are connected in communication to form an integrated structure.

[0045] By injection molding the brush holder ring shell 2 and the sheath shell 1 into an integrated structure, the brush holder ring shell 2 and the sheath shell 1 are no longer produced separately, but are directly injection molded into an integrated structure, thereby reducing production time and cost and improving production efficiency.

[0046] In addition, the contact spring piece in the prior art is cancelled, and the plug piece in the plug sheath in the prior art is designed as the first tab 21, the second tab 22 and the third tab 23 extending towards the inside of the brush holder ring shell 2, so that compared with the prior art, the contact spring piece and the plug piece are no longer produced separately, thereby reducing the cost of producing parts and the labor cost of installing parts.

[0047] At the same time, the first tab 21, the second tab 22 and the third tab 23 are designed to extend along the length direction of the brush holder ring shell 2 and are bent downward to form an inverted L-shaped structure, so that the first tab 21 in the sheath shell 1 is connected with the first circuit line in the brush holder ring shell 2, the second tab 22 in the sheath shell 1 is connected with the second circuit line in the brush holder ring shell 2, and the third tab 23 in the sheath shell 1 is connected with the third circuit line in the brush holder ring shell 2, so that the internal circuit of the brush holder ring and the internal circuit of the sheath are connected in communication to form an integrated structure, thereby ensuring the stability and reliability of the connection between the internal circuit of the brush holder ring and the internal circuit of the sheath, and improving the performance of the motor.

[0048] Specifically, referring to Figure 1 As shown in the figure, the brush holder ring shell 2 and the sheath shell 1 have an extension plate 3 extending horizontally and outwardly in the embodiment, the extension plate 3 is injection molded with the brush holder ring shell 2 and the sheath shell 1 to form an integrated structure, the first spring 4 is clamped on the extension plate 3, the first spring 4 is provided with a first insertion hole at the end thereof towards the first tab 21, the first tab 21 is provided with a protruding head 8 capable of being inserted into the first insertion hole at the end thereof towards the first spring 4, and the protruding head 8 is fixed in the first insertion hole by welding.

[0049] The first electric line of the embodiment is the first elastic sheet 4 and the first insertion sheet 21, which replaces the contact spring sheet in the prior art, saves material cost, and meanwhile, the protruding head 8 of the first insertion sheet 21 is inserted into the first insertion hole of the first elastic sheet 4 and the two are stably connected through welding, which can ensure the stability and reliability of the first electric line between the internal circuit of the brush ring holder and the internal circuit of the sheath.

[0050] In addition, the second elastic sheet 5 parallel to the first elastic sheet 4 is clamped on the extension plate 3, the second insertion hole is opened at the end of the second elastic sheet 5 close to the first insertion hole, the insertion head 24 of the second insertion sheet 22 towards the end of the second elastic sheet 5 is provided with the insertion head 24 capable of being inserted into the second insertion hole, and the second insertion hole also has the upper contact sheet 28 and the second lead wire 29 welded with the insertion head 24, the upper contact sheet 28 is the upper contact end of the protector 25, and the second lead wire 29 is the first terminal of the capacitor 11, and the protector 25 and the capacitor 11 together form the second electric line with the second brush 18.

[0051] When the second electric line between the internal circuit of the brush ring holder and the internal circuit of the sheath is formed into an integrated structure, the point contact transmission mode is adopted, the second insertion hole opened at the end of the second elastic sheet 5 is used to clamp the upper contact sheet 28 of the protector 25, the second lead wire 29 of the capacitor 11 and the insertion head 24 of the second insertion sheet 22 at the same time, so that the upper contact sheet 28, the second lead wire 29 and the insertion head 24 are attached and integrally welded to form an integrated structure, thereby ensuring the stability and reliability of the second electric line between the internal circuit of the brush ring holder and the internal circuit of the sheath, and replacing the structure of the contact spring sheet in the prior art to save material cost.

[0052] The limiting hole is opened on the first elastic sheet 4 and the second elastic sheet 5 respectively, the upper side of the limiting hole is provided with the limiting clamping sheet 20 arranged obliquely, the limiting hole is used for the bending block 7 arranged on the extension plate 3 to pass through, the bending block 7 is integrally formed in the shape of “7”, and the inner top of the bending block 7 abuts against the top of the limiting clamping sheet 20.

[0053] In order to fix the first elastic sheet 4 and the second elastic sheet 5 on the extension plate 3, the limiting hole and the limiting clamping sheet 20 are matched to make the bending block 7 on the extension plate 3 pass through the limiting hole, and then the inner top of the bending block 7 abuts against the top of the limiting clamping sheet 20 to fix the positions of the first elastic sheet 4 and the second elastic sheet 5 on the extension plate 3, so as to fix the positions of the first elastic sheet 4 and the second elastic sheet 5.

[0054] The second elastic sheet 5 has an arc-shaped arc segment 6, which is located between the limiting hole and the second insertion hole and covers the arc-shaped convex surface on the extension plate 3. In order to ensure that the second elastic sheet 5 is firmly fixed on the extension plate 3, the second elastic sheet 5 is designed as an arc-shaped structure to form the arc segment 6 between the limiting hole and the second insertion hole, and the arc segment 6 covers the arc-shaped convex surface of the extension plate 3, so that the contact area between the second elastic sheet 5 and the extension plate 3 is increased, the friction is increased, and the second elastic sheet 5 is firmly fixed on the extension plate 3.

[0055] In the embodiment, the brush holder ring shell has a first fixing chamber 19, a second fixing chamber 20 and a third fixing chamber 21 inside. The first fixing chamber 19 is used for fixing the inductor 12 of the internal circuit of the brush holder ring, the second fixing chamber 20 is used for fixing the second brush 18 of the internal circuit of the brush holder ring, and the third fixing chamber 21 is used for fixing the first brush 14 of the internal circuit of the brush holder ring.

[0056] The first fixing chamber 19, the second fixing chamber 20 and the third fixing chamber 21 are respectively used for fixing the inductor 12, the first brush 14 and the second brush 18 of the internal circuit of the brush holder ring, so that the internal circuit of the brush holder ring is fixed in the brush holder ring shell, and the internal circuit of the brush holder ring and the internal circuit of the sheath form an integrated structure.

[0057] The lower contact end of the protector is a lower contact sheet, the first lead wire is welded on the lower contact sheet, the end of the first lead wire facing the second brush 18 is connected with the second brush 18, the bottom of the second brush 18 is provided with a second limiting groove, the end of the second torsion spring 17 is embedded in the second limiting groove, and the second torsion spring 17 is sleeved on the second torsion spring column 16 in the brush holder ring shell 2.

[0058] The protector 25, the second brush 18, the capacitor 11 and the second insertion sheet 22 form a second circuit line, wherein the upper contact sheet 28 of the protector 25 is respectively spot-welded with the plug-in head 24 of the second insertion sheet 22 and the second lead wire 29, and the first lead wire 27 welded on the lower contact sheet 30 of the protector 25 is connected with the second brush 18; in order to support and fix the second brush 18, the second limiting groove arranged at the bottom of the second brush 18 is used for embedding the end of the second torsion spring 17, and the second torsion spring 17 is sleeved on the second torsion spring column 16, so that the second brush 18 is stably supported by the torsion force of the second torsion spring 17, and the stability of the second brush 18 is maintained.

[0059] The third circuit line further comprises double contact wires 10 which are parallel to each other and are simultaneously clamped in the clamping joint 9, the clamping joint 9 is arranged at the end of the third insertion piece 23 extending towards the first elastic piece 4, the clamping joint 9 is provided with a clamping hole into which the ends of the double contact wires 10 are inserted, and the double contact wires 10 are fixed in the clamping hole by welding, one of the double contact wires 10 is connected with the capacitor 11, and the other contact wire 10 is connected with the inductor 12, and the capacitor 11 and the inductor 12 are connected with the first brush 14 to form the third circuit line.

[0060] The third circuit line of the embodiment comprises the capacitor 11, the inductor 12 and the first brush 14, when the third circuit line between the current inside the brush ring holder and the internal circuit of the sheath is formed into an integrated structure, the clamping and welding transmission mode is adopted, the clamping holes in the clamping joint 9 are used to clamp and weld the double contact wires 10, and the double contact wires 10 are designed to be parallel to each other and are simultaneously clamped in the clamping joint 9 and are welded, the double contact wires 10 form a circuit connection in the clamping joint 9, the capacitor 11 and the inductor 12 connected with the double contact wires 10 form a circuit line with the third insertion piece 23, thereby ensuring the stability and reliability of the third circuit line between the internal circuit of the brush ring holder and the internal circuit of the sheath, and replacing the structure of the contact spring piece in the prior art to save material cost.

[0061] The above is only the embodiment of the utility model, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical solutions of the utility model, a number of modifications and improvements can be made, which should also be considered as the protection scope of the utility model, and these will not affect the effect and practicality of the utility model. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. An electrode brush holder ring and sheath integrated housing, characterized in that, The brush holder ring shell and the sheath shell are integrally formed; the brush holder ring shell and the sheath shell are provided with an extension plate extending horizontally and outwardly, the end of the extension plate is integrally formed with the brush holder ring shell and the sheath shell by injection molding, and the extension plate and the brush holder ring shell jointly have a containing space for supporting and fixing the internal circuit of the brush holder ring. The brush holder ring shell is internally provided with a first fixing chamber, a second fixing chamber and a third fixing chamber, the first fixing chamber is used for fixing the inductor of the internal circuit of the brush holder ring, the second fixing chamber is used for fixing the second brush of the internal circuit of the brush holder ring, and the third fixing chamber is used for fixing the first brush of the internal circuit of the brush holder ring.

2. The electrode brush holder ring and shroud integrated housing of claim 1, wherein: Two bending blocks are arranged on the extension plate in the radial direction of the extension plate, the bending blocks have a "7" type structure as a whole, and the top of the bending blocks is used for abutting against the internal circuit of the brush holder ring.

3. The electrode brush holder ring and shroud integrated housing of claim 2, wherein: An arc-shaped protrusion is arranged on the extension plate and located at the rear end of the bending block, and the upper surface of the arc-shaped protrusion is in contact with the internal circuit of the brush holder ring.

4. The electrode brush holder ring and shroud integrated housing of claim 1, wherein: A first torsional spring column is arranged in the brush holder ring shell and close to the second fixing chamber, a first torsional spring is sleeved on the first torsional spring column, and the first torsional spring is connected with the first brush in the brush holder ring shell.

5. The electrode brush holder ring and shroud integrated housing of claim 1, wherein: A second torsional spring column is arranged in the brush holder ring shell and close to the third fixing chamber, a second torsional spring is sleeved on the second torsional spring column, and the second torsional spring is connected with the second brush in the brush holder ring shell.

6. The electrode brush holder ring and shroud integrated housing of claim 4, wherein: The brush holder ring shell is further provided with a ring-shaped shell in a semi-circular ring structure, the ring-shaped surface of the ring-shaped shell is provided with a bottom hole for the first brush to pass through and a side hole for the second brush to pass through, and the first torsional spring column and the second torsional spring column are arranged in the ring-shaped shell.

7. The electrode brush holder ring and shroud integrated housing of claim 1, wherein: The sheath shell is provided with a connecting groove corresponding to the internal circuit of the brush holder ring, and the connecting groove and the brush holder ring shell form an integral structure.

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