CN102001158A - Plastic injection manufacture mold for ignition coil housing and ignition coil housing - Google Patents
Plastic injection manufacture mold for ignition coil housing and ignition coil housing Download PDFInfo
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- CN102001158A CN102001158A CN2010105317289A CN201010531728A CN102001158A CN 102001158 A CN102001158 A CN 102001158A CN 2010105317289 A CN2010105317289 A CN 2010105317289A CN 201010531728 A CN201010531728 A CN 201010531728A CN 102001158 A CN102001158 A CN 102001158A
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- ignition coil
- coil housing
- mold
- pressure tower
- internal mold
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Abstract
The invention discloses a plastic injection manufacture mold for an ignition coil housing, which comprises an internal mold and an external mold, wherein the internal mold comprises an internal-mold bottom and an internal-mold wall, and the external mold comprises an external-mold bottom and an external-mold wall; and the internal-mold bottom or the external-mold bottom is provided with an injection hole, and the bottom surface of the internal-mold bottom of the internal mold is provided with a guide groove. The invention also discloses the ignition coil housing, which comprises a bottom and a side wall, wherein the bottom comprises a high pressure tower, and the surface of an internal cavity at the bottom of the ignition coil housing is provided with a raised guide rib. The high pressure tower at the bottom of the ignition coil housing produced by using the plastic injection manufacture mold of the invention is not easy to have shrinkage cavities and air bubbles.
Description
Technical field
The present invention relates to automotive electronic technology, particularly ignition coil housing injection moulding mfg. moulding die and ignition coil housing.
Background technology
During automobile engine work, light the high-pressure tower output of the needed high pressure of gaseous mixture from the ignition coil housing bottom, high-pressure tower is bearing the high pressure of 15KV～30KV.
The ignition coil housing normally forms by injection moulding manufacturing in mould, and ignition coil housing injection moulding mfg. moulding die comprises internal mold and external mold, and internal mold comprises at the bottom of the internal mold and interior die wall, and external mold comprises at the bottom of the external mold and outer mold walls, is provided with injecting hole at the bottom of the internal mold or at the bottom of the external mold.During production fire coil housing, the cavity that internal mold places at the bottom of the external mold and outer mold walls forms, between internal mold is with external mold, form ignition coil housing shaping area, inject melt plastic cement to ignition coil housing shaping area with certain injection pressure by described injecting hole then, then through condensation, the demoulding obtains the ignition coil housing, ignition coil housing shaping area between the end face of bottom surface at the bottom of the internal mold at the bottom of with external mold is used for the bottom that moulding comprises the ignition coil housing of high-pressure tower, and interior die wall is used for the sidewall of moulding ignition coil housing with the ignition coil housing shaping area between the outer mold walls.
As shown in Figure 1, the ignition coil housing comprises bottom, sidewall, the bottom comprises high-pressure tower 11, high-pressure tower 11 wall unevennesses of ignition coil housing bottom are even, injection moulding is fixed with high pressure connection pin in the high-pressure tower 11, and high pressure connection pin is used for being placed in the high pressure of the ignition coil secondary windings generation in the housing and draws.Common ignition coil housing such as Fig. 2, shown in Figure 3, high-pressure tower 11 wall unevennesses that are positioned at the ignition coil housing bottom are even, injection moulding is fixed with high pressure connection pin 15 in the high-pressure tower 11, ignition coil housing bottom inner cavity surface 12 is smooth face, and the bottom surface that promptly is used to produce at the bottom of the internal mold of internal mold of ignition coil housing injection moulding mfg. moulding die of this ignition coil housing is smooth face.
In the injection moulding process, melt plastic cement at the bottom of successively flowing to internal mold from injecting hole under certain injection pressure with external mold at the bottom of between ignition coil housing shaping area, interior die wall is with the ignition coil housing shaping area between the outer mold walls, because the bottom surface that is used to produce at the bottom of the internal mold of internal mold of ignition coil housing injection moulding mfg. moulding die of this ignition coil housing is smooth face, the injection molding channel area is big inadequately, the injection rate of melt plastic cement is not high under same injection pressure, make plastic material well at the bottom of the filled internal mold with the ignition coil housing shaping area between at the bottom of the external mold, to form the high-pressure tower of the even ignition coil housing bottom of wall unevenness, shrinkage cavity can appear in high-pressure tower, bubble, cause its decreasing insulating, leak behind the igniting high-voltage breakdown high-pressure tower, can cause gaseous mixture to light instability and maybe can not light, cause the engine shake, catch fire, quicken faults such as unable.
Summary of the invention
The technical problem to be solved in the present invention is that the high-pressure tower of ignition coil housing bottom is not prone to shrinkage cavity, bubble.
For solving the problems of the technologies described above, the invention provides a kind of ignition coil housing injection moulding mfg. moulding die, comprise internal mold and external mold, internal mold comprises at the bottom of the internal mold and interior die wall, external mold comprises at the bottom of the external mold and outer mold walls, be provided with injecting hole at the bottom of the internal mold or at the bottom of the external mold, the bottom surface at the bottom of the internal mold of the internal mold of described ignition coil housing injection moulding mfg. moulding die is provided with diversion groove.
Can the bottom edge at the bottom of internal mold be provided with the injecting hole that is communicated with described diversion groove.
Described diversion groove can be straight shape.
Straight shape diversion groove one end is near the high-pressure tower shaping area, and the other end is positioned at the bottom edge at the bottom of the internal mold.
Described diversion groove can be annular, and annular diversion groove is surrounded on the high-pressure tower shaping area.
Annular diversion groove inner edge is dentation and is communicated with a plurality of grooves that lead to the high-pressure tower shaping area.
For solving the problems of the technologies described above, the present invention also provides a kind of ignition coil housing, comprises bottom, sidewall, and the bottom comprises high-pressure tower, and ignition coil housing bottom inner cavity surface has the fuisw rib of projection.
Described fuisw rib can be straight shape, and straight shape fuisw rib one end is near the high-pressure tower of ignition coil housing bottom, and the other end is near ignition coil housing bottom edge.
Described fuisw rib can be annular, and annular fuisw rib is surrounded on high-pressure tower.
Annular fuisw rib inner edge is dentation and is connected with a plurality of muscle that lead to the projection of high-pressure tower.
When adopting ignition coil housing injection moulding mfg. moulding die of the present invention to produce ignition coil housing of the present invention, in injection moulding process, melt plastic cement at the bottom of successively flowing to internal mold from injecting hole under certain injection pressure with external mold at the bottom of between ignition coil housing shaping area, interior die wall is with the ignition coil housing shaping area between the outer mold walls, because the bottom surface at the bottom of the internal mold of the internal mold of this ignition coil housing injection moulding mfg. moulding die is provided with diversion groove, injecting hole is communicated with diversion groove, make the area of runner increase, keeping under the certain condition of injection pressure, melt plastic cement can be filled at the bottom of the internal mold better with the ignition coil housing shaping area between at the bottom of the external mold, with the even high-pressure tower of wall unevenness that forms the ignition coil housing bottom, the high-pressure tower inside that can guarantee the ignition coil housing produced does not have defectives such as shrinkage cavity and bubble, the high-pressure tower insulating properties of the ignition coil housing of producing improve, guarantee that the igniting high pressure can not leak from high-pressure tower, thereby it is more stable to make gaseous mixture light, reliably, make engine always work in optimum state.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the present invention is described in further detail.
Fig. 1 is an ignition coil housing stereogram;
Fig. 2 is the longitudinal sectional drawing of common ignition coil housing;
Fig. 3 is the vertical view of common ignition coil housing;
Fig. 4 is the vertical view of ignition coil housing first embodiment of the present invention;
Fig. 5 is the longitudinal sectional drawing of ignition coil housing first embodiment of the present invention;
Fig. 6 is the vertical view of ignition coil housing second embodiment of the present invention.
The specific embodiment
Ignition coil housing injection moulding mfg. moulding die of the present invention, comprise internal mold and external mold, internal mold comprises at the bottom of the internal mold and interior die wall, external mold comprises at the bottom of the external mold and outer mold walls, be provided with injecting hole at the bottom of the internal mold or at the bottom of the external mold, bottom surface at the bottom of the internal mold of the internal mold of ignition coil housing injection moulding mfg. moulding die is provided with diversion groove, and the shape and size size of diversion groove can be carried out adaptive design according to the structure of difference fire coil housing.During production fire coil housing, the cavity that internal mold places at the bottom of the external mold and outer mold walls forms, between internal mold is with external mold, form ignition coil housing shaping area, be used for the bottom that comprises the high-pressure tower that wall unevenness is even of moulding ignition coil housing at the bottom of the internal mold with the ignition coil housing shaping area between at the bottom of the external mold, interior die wall is used for the sidewall of moulding ignition coil housing with the ignition coil housing shaping area between the outer mold walls.
First preferred embodiment, described diversion groove are straight shape, and straight shape diversion groove one end is near the high-pressure tower shaping area, and the other end is positioned at the bottom edge at the bottom of the internal mold, and the bottom edge at the bottom of the internal mold is provided with the injecting hole with the diversion groove connection of straight shape.
Second preferred embodiment, described diversion groove is an annular, the annular diversion groove is surrounded on the high-pressure tower shaping area, and annular diversion groove inner edge is dentation and is communicated with a plurality of grooves that lead to the high-pressure tower shaping area, and the bottom edge at the bottom of the internal mold is provided with the injecting hole with the diversion groove connection of annular.
When adopting the ignition coil housing injection moulding mfg. moulding die production fire coil housing of above-mentioned embodiment, in injection moulding process, melt plastic cement at the bottom of successively flowing to internal mold from injecting hole under certain injection pressure with external mold at the bottom of between ignition coil housing shaping area, interior die wall is with the ignition coil housing shaping area between the outer mold walls, because the bottom surface at the bottom of the internal mold of the internal mold of this ignition coil housing injection moulding mfg. moulding die is provided with diversion groove, injecting hole is communicated with diversion groove, make the area of runner increase, keeping under the certain condition of injection pressure, melt plastic cement can be filled at the bottom of the internal mold better with the ignition coil housing shaping area between at the bottom of the external mold, with the even high-pressure tower of wall unevenness that forms the ignition coil housing bottom, the high-pressure tower inside that can guarantee the ignition coil housing produced does not have defectives such as shrinkage cavity and bubble, the high-pressure tower insulating properties of the ignition coil housing of producing improve, guarantee that the igniting high pressure can not leak from high-pressure tower, thereby it is more stable to make gaseous mixture light, reliably, make engine always work in optimum state.
Adopt the ignition coil housing of the ignition coil housing injection moulding mfg. moulding die production of first embodiment, vertical view as shown in Figure 4, longitudinal sectional drawing as shown in Figure 5, the ignition coil housing comprises that bottom, sidewall, high pressure connect pin 15, the bottom comprises high-pressure tower 11, high pressure connects pin 15 injection mouldings and is fixed in the high-pressure tower 11, ignition coil housing bottom inner cavity surface 12 has the straight shape fuisw rib 13 of projection, straight shape fuisw rib 13 1 ends are near the high-pressure tower 11 of ignition coil housing bottom, and the other end is near ignition coil housing bottom edge.
Adopt the ignition coil housing of the ignition coil housing injection moulding mfg. moulding die production of second embodiment, vertical view as shown in Figure 6, the ignition coil housing comprises the bottom, sidewall, high pressure connects pin 15, the bottom comprises high-pressure tower 11, high pressure connects pin 15 injection mouldings and is fixed in the high-pressure tower 11, ignition coil housing bottom inner cavity surface 12 has the annular fuisw rib 13 of projection, annular fuisw rib 13 is surrounded on the high-pressure tower 11 of ignition coil housing bottom, annular fuisw rib 13 inner edges are dentation and are connected with a plurality of muscle that lead to high-pressure tower 11 projectioies of ignition coil housing bottom, and are formed with projection 131 in the position corresponding to injecting hole.
Claims (10)
1. ignition coil housing injection moulding mfg. moulding die, comprise internal mold and external mold, internal mold comprises at the bottom of the internal mold and interior die wall, external mold comprises at the bottom of the external mold and outer mold walls, be provided with injecting hole at the bottom of the internal mold or at the bottom of the external mold, it is characterized in that the bottom surface at the bottom of the internal mold of the internal mold of described ignition coil housing injection moulding mfg. moulding die is provided with diversion groove.
2. ignition coil housing injection moulding mfg. moulding die according to claim 1 is characterized in that, the bottom edge at the bottom of the internal mold is provided with the injecting hole that is communicated with described diversion groove.
3. ignition coil housing injection moulding mfg. moulding die according to claim 1 and 2 is characterized in that described diversion groove is straight shape.
4. ignition coil housing injection moulding mfg. moulding die according to claim 3 is characterized in that, straight shape diversion groove one end is near the high-pressure tower shaping area, and the other end is positioned at the bottom edge at the bottom of the internal mold.
5. ignition coil housing injection moulding mfg. moulding die according to claim 1 and 2 is characterized in that, described diversion groove is an annular, and annular diversion groove is surrounded on the high-pressure tower shaping area.
6. ignition coil housing injection moulding mfg. moulding die according to claim 5 is characterized in that annular diversion groove inner edge is dentation and is communicated with a plurality of grooves that lead to the high-pressure tower shaping area.
7. an ignition coil housing comprises bottom, sidewall, and the bottom comprises high-pressure tower, it is characterized in that, ignition coil housing bottom inner cavity surface has the fuisw rib of projection.
8. ignition coil housing according to claim 7 is characterized in that, described fuisw rib is straight shape, and straight shape fuisw rib one end is near the high-pressure tower of ignition coil housing bottom, and the other end is near ignition coil housing bottom edge.
9. ignition coil housing according to claim 7 is characterized in that, described fuisw rib is an annular, and annular fuisw rib is surrounded on high-pressure tower.
10. ignition coil housing according to claim 9 is characterized in that, annular fuisw rib inner edge is dentation and is connected with a plurality of muscle that lead to the projection of high-pressure tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010531728.9A CN102001158B (en) | 2010-11-04 | 2010-11-04 | Plastic injection manufacture mold for ignition coil housing and ignition coil housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010531728.9A CN102001158B (en) | 2010-11-04 | 2010-11-04 | Plastic injection manufacture mold for ignition coil housing and ignition coil housing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102001158A true CN102001158A (en) | 2011-04-06 |
| CN102001158B CN102001158B (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010531728.9A Active CN102001158B (en) | 2010-11-04 | 2010-11-04 | Plastic injection manufacture mold for ignition coil housing and ignition coil housing |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63503582A (en) * | 1986-06-19 | 1988-12-22 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Ignition coil for internal combustion engine ignition system |
| CN2347246Y (en) * | 1996-06-25 | 1999-11-03 | 罗伯特-博希股份公司 | Ignition coil group |
| CN2704910Y (en) * | 2004-06-08 | 2005-06-15 | 哈尔滨志阳汽车电气股份有限公司 | Igniting coil with controllable module |
| CN201092925Y (en) * | 2007-08-17 | 2008-07-30 | 联合汽车电子有限公司 | Ignition coil |
| CN201872300U (en) * | 2010-11-04 | 2011-06-22 | 联合汽车电子有限公司 | Ignition coil housing and injection molding mould therefor |
-
2010
- 2010-11-04 CN CN201010531728.9A patent/CN102001158B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63503582A (en) * | 1986-06-19 | 1988-12-22 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Ignition coil for internal combustion engine ignition system |
| CN2347246Y (en) * | 1996-06-25 | 1999-11-03 | 罗伯特-博希股份公司 | Ignition coil group |
| CN2704910Y (en) * | 2004-06-08 | 2005-06-15 | 哈尔滨志阳汽车电气股份有限公司 | Igniting coil with controllable module |
| CN201092925Y (en) * | 2007-08-17 | 2008-07-30 | 联合汽车电子有限公司 | Ignition coil |
| CN201872300U (en) * | 2010-11-04 | 2011-06-22 | 联合汽车电子有限公司 | Ignition coil housing and injection molding mould therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102001158B (en) | 2014-08-06 |
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