CN202153603U - Split type carbon brush holder - Google Patents
Split type carbon brush holder Download PDFInfo
- Publication number
- CN202153603U CN202153603U CN2011202555209U CN201120255520U CN202153603U CN 202153603 U CN202153603 U CN 202153603U CN 2011202555209 U CN2011202555209 U CN 2011202555209U CN 201120255520 U CN201120255520 U CN 201120255520U CN 202153603 U CN202153603 U CN 202153603U
- Authority
- CN
- China
- Prior art keywords
- carbon brush
- brush holder
- split type
- type carbon
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 73
- 239000002184 metal Substances 0.000 claims abstract description 88
- 239000011347 resin Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 238000001746 injection moulding Methods 0.000 claims abstract description 18
- 239000000945 filler Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
Abstract
The utility model discloses a split type carbon brush holder, comprising a plurality of metal terminals and a positioning framework, wherein the positioning framework comprises a body part and a supporting part vertically connected at one side of the body part, the other side of the body part is provided with a groove, the supporting part is a cavity with one end open and is communicated with the groove, the other end of the supporting part is provided with a positioning hole, and each metal terminal comprises a carbon brush connecting part arranged in the groove and a lead connecting part arranged in the cavity and led out via the positioning hole. The split type carbon brush holder further comprises fillers in the cavity and a housing cladded on the body part in an injection moulding manner. The split type carbon brush holder is arranged in such a manner that positioning precision of the metal terminals is improved by fixing the metal terminals with the preformed positioning framework, air tightness between the metal terminals and resin is improved by filling the cavity, and because the metal terminals are fixedly arranged in the groove, flow of the resin is not influenced when the housing is subjected to injection moulding, and thus, size precision of the carbon brush holder is improved.
Description
Technical field
The utility model relates to the motor manufacturing technology field, is specifically related to a kind of split type carbon brush holder that is applied to automobile ABS system.
Background technology
Current, automobile ABS (Anti-lock braking system) system's forward miniaturization, modularization, standardization direction develop.The ABS motor that is used for the driving pump body action requires that its volume is little, dimensional accuracy is high, the metal terminal good airproof performance.Like Fig. 1, shown in Figure 2; The carbon brush holder 100 of the integral moulding of prior art comprises discoid carbon brush holder main body 110 and the columned supporter 120 that is vertically connected on carbon brush holder main body 110 1 sides; The part of negative pole metal terminal 101 and cathode metal terminal 102 is arranged in supporter 120 and stretches out supporter 120; Be used for being connected with lead, another part of negative pole metal terminal 101 and cathode metal terminal 102 is positioned at carbon brush holder main body 110 and is used for being connected with carbon brush.
The manufacture process of the carbon brush holder 100 of prior art is directly negative pole metal terminal 101 and cathode metal terminal 102 to be put into mould; Become carbon brush holder 100 through injecting the resin integral molded plastic; But because negative, positive metal terminal 101 and 102 with formation carbon brush holder 100 resin between thermal expansion coefficient difference very big; And the adhesion of common insulating resin and metal terminal is relatively poor; Therefore cause having the slit between negative pole metal terminal 101 or cathode metal terminal 102 and the carbon brush holder 100, can't satisfy the ABS system for the bubble-tight strict demand of motor.In addition; In the integrated injection molding mode of prior art; Negative pole metal terminal 101 or cathode metal terminal 102 are placed directly in the injection mold; When injection moulding, flowing pressure that resin is powerful and temperature impact anticathode metal terminal 101 or cathode metal terminal 102, directly influence the shape and size precision of metal terminal.Moreover, because the carbon brush holder structure is comparatively complicated, when injection mo(u)lding; Resin receives the obstruction of terminal shape; Flow direction is uncertain, causes carbon brush holder injection molding body internal resin density unstable, after the depanning cooling; Each position contraction distortion of carbon brush holder is inconsistent, causes carbon brush holder shape and dimensional accuracy to be affected.
The utility model content
To the above-mentioned defective that prior art exists, the problem that the utility model will solve is the manufacturing approach of a kind of carbon brush holder and carbon brush holder to be provided, inner metal terminal shape and the positioning accuracy of raising carbon brush holder, and the air-tightness between raising metal terminal and the resin.
For addressing the above problem; The utility model provides a kind of split type carbon brush holder; Comprise a plurality of metal terminals and the location skeleton that is used for fixing said metal terminal; Said location skeleton comprises main part and the support portion that is vertically connected on said main part one side, and the opposite side of said main part is provided with groove, and the inside of said support portion is the cavity of an end opening; The openend of said support portion is connected with said main part makes said cavity be communicated with said groove, and the said support portion other end is provided with the location hole that is used for interspersed and fixing said metal terminal; Each said metal terminal comprises the carbon brush connecting portion that is positioned at said groove respectively and is positioned at the cavity of said support portion and the wire interconnecting piece that stretches out through said location hole; Said split type carbon brush holder also comprises and is filled in the filler in the said cavity and is coated on the housing on the said main part through injection moulding.
As preferably, said filler is an insulating resin.
As preferably, the said main part and the support portion of said location skeleton are integrated.
As preferably, the length direction of the said support portion, wall upper edge of the cavity of said support portion is provided with and is used for interting and the location notch of the wire interconnecting piece of fixing said metal terminal.
As preferably, said location notch is two.
Further, as preferably, two said location notchs are parallel to each other.
As preferably, said insulating resin is filled in the said cavity through injection moulding.
The split type carbon brush holder of the utility model, the location skeletal fixation metal terminal through first moulding has improved the positioning accuracy of metal terminal in carbon brush holder; Through cavity is filled; Improve the air-tightness between metal terminal and the resin, because metal terminal is positioned at groove and is fixed, when injection-moulded housing; Resin flow is unaffected, has improved the dimensional accuracy of carbon brush holder.
Description of drawings
Fig. 1 is the perspective view of the integral type carbon brush holder of prior art;
Fig. 2 is the generalized section that integral type carbon brush holder shown in Figure 1 cuts along the plane of the bus of diameter that passes through the carbon brush holder main body simultaneously and supporter;
Fig. 3 is the perspective view of split type carbon brush holder of the embodiment of the utility model;
Fig. 4 is the left view of split type carbon brush holder shown in Figure 3;
Fig. 5 is the right view of split type carbon brush holder shown in Figure 3;
Fig. 6 be split type carbon brush holder shown in Figure 5 along A-A to generalized section;
Fig. 7 is the perspective view of the location skeleton of split type carbon brush holder shown in Figure 3;
Fig. 8 is the perspective view of another direction of location skeleton shown in Figure 7;
Fig. 9 is that the support portion of location skeleton shown in Figure 8 is by along the perspective view of B-B behind planar interception;
Figure 10 is the enlarged diagram of M portion of the support portion of location skeleton shown in Figure 8;
Figure 11 is the sketch map behind the location skeleton plug-in mounting metal terminal shown in Figure 7;
Figure 12 is that the cavity of the support portion of location skeleton shown in Figure 11 is filled the sketch map of accomplishing;
Figure 13 is the perspective view of a metal terminal in the split type carbon brush holder of embodiment of the utility model;
Figure 14 is the perspective view of another metal terminal in the split type carbon brush holder of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail, but not as the qualification to the utility model.
Fig. 3 is the perspective view of split type carbon brush holder of the embodiment of the utility model; Fig. 4 is the left view of the split type carbon brush holder shown in Fig. 3 quilt; Fig. 5 is the right view of split type carbon brush holder shown in Figure 3; Fig. 6 be split type carbon brush holder shown in Figure 5 along A-A to generalized section.Like Fig. 3-shown in Figure 6, the split type carbon brush holder 200 of the embodiment of the utility model comprises the first metal end 201, second metal terminal 202 and is used for fixing the location skeleton of the first metal end 201 and second metal terminal 202.In the present embodiment, be that example describes only with the split type carbon brush holder that comprises two metal terminals, those skilled in the art can make the split type carbon brush holder that comprises three or three above metal terminals under the teachings of the utility model.
Like Fig. 7, shown in Figure 8, the location skeleton 240 of the split type carbon brush holder 200 of present embodiment comprises main part 241 and the support portion 220 that is vertically connected on main part 241 1 sides.Wherein main part 241 is a disc, and support portion 220 is for having the cylindrical of cavity.The side that main part 241 is not connected with support portion 220 is provided with first groove 245 and second groove 246.One end of support portion 220 is an openend 229, and openend 229 is connected with main part 241, and cavity 228 is communicated with first groove 245 and second groove 246 simultaneously.Like Fig. 8, shown in Figure 10, the other end of support portion 220 (being free end) is provided with and is used for first location hole 211 and second location hole 212 interspersed and fixedly the first metal end 201 and second metal terminal 202.Shape such as Figure 13 and shown in Figure 14 of the first metal end 201 and second metal terminal 202, the first metal end 201 is divided into and is used for carbon brush connecting portion 2011 that is connected with carbon brush and the wire interconnecting piece 2012 that is used for being connected with lead; Second metal terminal 202 also is divided into and is used for carbon brush connecting portion 2021 that is connected with carbon brush and the wire interconnecting piece 2022 that is used for being connected with lead.
Shown in figure 11, the carbon brush connecting portion 2011 of the first metal end 201 is positioned at first groove 245 on the main part 241, is used for being connected with the carbon brush (not shown); The wire interconnecting piece 2012 of the first metal end 201 is positioned at the cavity 228 of support portion 220, and the free end of the wire interconnecting piece 2012 of the first metal end 201 stretches out support portion 220 through first location hole 211 and is used for being connected with the lead (not shown).Second metal terminal 202 adopts with the first metal end 201 similar modes and is fixed on the skeleton 240 of location.
As preferred version, as shown in Figure 9, offer first location notch 221 and second location notch 222 that are used for further fixing the first metal end 201 and second metal terminal 202 on the inwall of support portion 220.Be that cavity 228 comprises two the first parallel location notchs 221 and second location notch 222; As shown in Figure 9; On the cross section of support portion 220; Cavity 228 is " worker " font substantially, and the wire interconnecting piece 2012 of the first metal end 201 and the wire interconnecting piece 2022 of second metal terminal 202 lay respectively in first location notch 221 and second location notch 222 and stretch out from first location hole 211 and second location hole 212 respectively the end.Through be provided with two location notchs can further improve metal terminal in the location stability on the skeleton, avoid in next step injection moulding operation, metal terminal receives the impact of mobile resin and moves, the quality of the carbon brush holder after the raising moulding.Certainly, first location notch 221 can also become splayed to arrange with second location notch 222, just adopts two arrangement modes that location notch is parallel to each other as shown in Figure 9, and the subsequent handling of being more convenient for is filled cavity 228.As shown in Figure 6, the split type carbon brush holder 200 of present embodiment also comprises the filler 251 in the cavity 228 that is filled in support portion 220 and is coated on the housing 210 on the main part 241 through injection moulding.The inboard of housing 210 covers on the main part 241, and is integrally formed with it, and the shape of the outer surface of housing 210 is identical with the shape of the integral type carbon brush holder of prior art.Certainly the carbon brush connecting portion 2011 that is positioned at the first metal end 201 of first groove 245 is also wrapped up by housing 210 parts with the carbon brush connecting portion 2021 that is positioned at second metal terminal 202 of second groove 246.Wherein, The filler 251 that is positioned at cavity 228 adopts dielectric resin material, preferentially selects for use in this enforcement " SEAL-FIT " material, this material and metal and ordinary resin all have strong bonded power; And have an anti-shrinkage stress, can and metal terminal and support portion between strong bonded.
Specify the manufacture process of the split type carbon brush holder of the utility model below in conjunction with Fig. 2-Figure 14.
The manufacturing approach of the split type carbon brush holder of present embodiment may further comprise the steps successively:
(1) injection moulding forms the location skeleton, at first uses particular manufacturing craft to form like Fig. 7 and location skeleton 240 shown in Figure 8 through injection moulding.Like Fig. 7 and shown in Figure 8, location skeleton 240 comprises main part 241 and the support portion 220 that is vertically connected on main part 241 1 sides, and the opposite side of main part 241 is provided with two grooves, is respectively first groove 245 and second groove 246.Support portion 220 is hollow cylindric; One end of its inner cavity 228 is that openend 229 openends 229 are connected with main part 241 and cavity 228 is communicated with first groove 245 and second groove 246 simultaneously, and the other end of support portion 220 is provided with first location hole 211 and second location hole 212 that is used for interspersed metal terminal.
(2) metal terminal is inserted on the skeleton of said location.Shown in figure 11, the first metal end 201 and second metal terminal 202 is inserted into respectively on the skeleton 240 of location, wherein, an end of the first metal end 201 is positioned at first groove 245 on the main part 241, is used for being connected with the carbon brush (not shown); The other end is positioned at support portion 220 and stretches out support portion 220 through first location hole 211 and is used for being connected with the lead (not shown).Second metal terminal 202 adopts with the first metal end 201 similar modes and is fixed in the skeleton 240 of location.The first metal end 201 and second metal terminal 202 is fixed in the skeleton 240 of location, just can receive the influence that the resin in the postorder injection moulding operation impacts, thereby guaranteed the shape and size precision of metal terminal.
(3) filler is inserted in the cavity, filler 251 is inserted in the cavity 228 of support portion 220 through injection moulding, and wherein filler 251 can be selected the suitable insulation material for use, like insulating resin etc.In the present embodiment, select " SEAL-FIT " material for use, this material and metal terminal and common casting resin all have the characteristic of good bonding force and anti-shrinkage stress, can guarantee the air-tightness requirement between metal terminal and the resin.
(4) injection moulding forms shell, treat that cavity 228 is filled after, forms shape shown in figure 12, the wire interconnecting piece of sub 201 and second metal terminal 202 of the first metal end just is fixed in the support portion 220.The outside at the main part 241 that is fitted with the first metal end 201 and second metal terminal 202 forms the housing 210 that coats main part 241 through injection moulding, forms like Fig. 3-split type carbon brush holder 200 shown in Figure 5.In this operation; Owing to be on the basis of the main part 241 of the location of moulding skeleton 240, to form through injection moulding again to be coated on the shell 210 on the main part 241; And the first metal end 201 and second metal terminal 202 all is positioned at groove; The resin flow molding space that is used to form shell 210 is uniform and stable, so the resin density of the shell after the moulding 210 is even, can improve shell 210 in the cooled shape and size precision of depanning.And the first metal end 201 and second metal terminal 202 all is positioned at groove, the impact of the resin that is not vulnerable to flow, and its position stability helps improving the quality after the carbon brush holder moulding.In the present embodiment, the main part 241 of location skeleton 240 is integrated with support portion 220, and promptly through single injection-molded, location skeleton 240 can adopt common resin material.
Certainly; The above is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also are regarded as the protection range of the utility model.
Claims (7)
1. split type carbon brush holder; It is characterized in that; Comprise a plurality of metal terminals and the location skeleton that is used for fixing said metal terminal; Said location skeleton comprises main part and the support portion that is vertically connected on said main part one side, and the opposite side of said main part is provided with groove, and the inside of said support portion is the cavity of an end opening; The openend of said support portion is connected with said main part makes said cavity be communicated with said groove, and the said support portion other end is provided with the location hole that is used for interspersed and fixing said metal terminal;
Each said metal terminal comprises the carbon brush connecting portion that is positioned at said groove respectively and is positioned at the cavity of said support portion and the wire interconnecting piece that stretches out through said location hole;
Said split type carbon brush holder also comprises and is filled in the filler in the said cavity and is coated on the housing on the said main part through injection moulding.
2. split type carbon brush holder as claimed in claim 1 is characterized in that, said filler is an insulating resin.
3. split type carbon brush holder as claimed in claim 1 is characterized in that, the said main part and the support portion of said location skeleton are integrated.
4. split type carbon brush holder as claimed in claim 1 is characterized in that, the length direction of the said support portion, wall upper edge of the cavity of said support portion is provided with the location notch of the wire interconnecting piece that is used for interspersed and fixing said metal terminal.
5. split type carbon brush holder as claimed in claim 4 is characterized in that, said location notch is two.
6. split type carbon brush holder as claimed in claim 5 is characterized in that, two said location notchs are parallel to each other.
7. split type carbon brush holder as claimed in claim 2 is characterized in that said insulating resin is filled in the said cavity through injection moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202555209U CN202153603U (en) | 2011-07-19 | 2011-07-19 | Split type carbon brush holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202555209U CN202153603U (en) | 2011-07-19 | 2011-07-19 | Split type carbon brush holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202153603U true CN202153603U (en) | 2012-02-29 |
Family
ID=45694097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202555209U Expired - Lifetime CN202153603U (en) | 2011-07-19 | 2011-07-19 | Split type carbon brush holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202153603U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891416A (en) * | 2011-07-19 | 2013-01-23 | 廊坊科森电器有限公司 | Split type carbon brush bracket and manufacturing method thereof |
| CN105098558A (en) * | 2015-09-06 | 2015-11-25 | 瑞安市瑞鑫电器有限公司 | Manufacturing method of carbon brush holder |
-
2011
- 2011-07-19 CN CN2011202555209U patent/CN202153603U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891416A (en) * | 2011-07-19 | 2013-01-23 | 廊坊科森电器有限公司 | Split type carbon brush bracket and manufacturing method thereof |
| CN102891416B (en) * | 2011-07-19 | 2015-04-08 | 廊坊科森电器有限公司 | Split type carbon brush bracket and manufacturing method thereof |
| CN105098558A (en) * | 2015-09-06 | 2015-11-25 | 瑞安市瑞鑫电器有限公司 | Manufacturing method of carbon brush holder |
| CN105098558B (en) * | 2015-09-06 | 2018-05-15 | 瑞安市瑞鑫电器有限公司 | Carbon brush holder manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120229 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |