New energy electric vehicle engine rear cover mold cavity

Abstract

The utility model provides new energy electric motor car engine rear cover mould cavity relates to mould cavity technical field, including mould main part, the top of mould main part is equipped with part cavity, part cavity is equipped with part main body in, the one end of mould main part is equipped with first main gate, one side of first main gate is equipped with second main gate, the outside intercommunication of first main gate is equipped with first sub -gate, second sub -gate, third sub -gate and fourth sub -gate, the outside intercommunication of second main gate is equipped with fifth sub -gate, sixth sub -gate and seventh sub -gate, the one end of part cavity is equipped with the sprue. The improvement is carried out to traditional casting part cavity, adopts two main gate, seven sub -gate's design, solves the problem that the thin -walled casting forming property is poor, and the filling efficiency is low, adopts the design of multipoint inner gate to fully consider the shape characteristics and forming capacity factors of this part main body to obtain high performance, high quality casting.

Description

Technical Field

[0001] This utility model relates to the field of mold cavity technology, and in particular to the mold cavity of the rear cover of the engine of a new energy electric vehicle. Background Technology

[0002] In the current booming development of new energy electric vehicles, the engine rear cover, as a key component, plays a crucial role in the overall vehicle operation due to its performance and quality. Functionally, the rear cover needs to provide robust protection for the engine, isolate external impurities and moisture, ensure the stable operation of internal components, and withstand vibrations and impacts during vehicle operation to maintain structural integrity. From a design perspective, to meet the lightweight and high-efficiency requirements of new energy electric vehicles, rear covers are often made of lightweight materials with good mechanical properties, such as aluminum alloys and high-strength composite materials. However, the characteristics of these materials and the complex structure of the rear cover itself, such as diverse curved shapes, thin-walled designs, integrated heat dissipation holes, wiring harness slots, and mounting bosses, pose significant challenges to mold cavity design and manufacturing.

[0003] Currently, existing technologies for mold cavities for the rear cover of new energy electric vehicle engines suffer from problems such as difficulty in forming the rear cover, complex processes, low dimensional accuracy, high cost, low productivity, low strength, and susceptibility to defects such as shrinkage cavities and porosity. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of existing new energy electric vehicle engine rear cover mold cavity, which is difficult to form, has complex process, low dimensional accuracy, high cost, low productivity, low strength, and is prone to defects such as shrinkage cavities and porosity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mold cavity for a rear cover of a new energy electric vehicle engine, comprising a mold body, a part cavity at the top of the mold body, a part body inside the part cavity, a first main runner at one end of the mold body, a second main runner at one side of the first main runner, a first sub-runner, a second sub-runner, a third sub-runner, and a fourth sub-runner connected to the outer side of the first main runner, a fifth sub-runner, a sixth sub-runner, and a seventh sub-runner connected to the outer side of the second main runner, and a gate at one end of the part cavity, wherein the first sub-runner, the second sub-runner, the third sub-runner, the fourth sub-runner, the fifth sub-runner, the sixth sub-runner, and the seventh sub-runner are all connected to the part cavity through the gate.

[0006] Preferably, the number of gates is seven, and the seven gates are respectively connected to the first sub-sprue, the second sub-sprue, the third sub-sprue, the fourth sub-sprue, the fifth sub-sprue, the sixth sub-sprue, and the seventh sub-sprue.

[0007] Preferably, the mold body has a first overflow groove, a second overflow groove, a third overflow groove, a fourth overflow groove, a fifth overflow groove, a sixth overflow groove, a seventh overflow groove, an eighth overflow groove, a ninth overflow groove, a tenth overflow groove, and an eleventh overflow groove connected to the other end of the part cavity.

[0008] Preferably, the first overflow groove, the second overflow groove, the third overflow groove, the fourth overflow groove, the fifth overflow groove, the sixth overflow groove, the seventh overflow groove, the eighth overflow groove, the ninth overflow groove, the tenth overflow groove and the eleventh overflow groove are all connected to an exhaust groove at the end away from the part cavity, and one end of the exhaust groove penetrates the mold body.

[0009] Preferably, a flow divider cone is installed at one end of the mold body on one side of the first main runner.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] In this invention, the traditional casting part cavity is improved by adopting a design with two main runners and seven sub-runners. This solves the problems of poor formability and low filling efficiency of thin-walled castings. At the same time, the multi-point ingate design fully considers the shape characteristics and forming capacity of the main body of the part, thereby obtaining high-performance and high-quality castings. Attached Figure Description

[0012] Figure 1 This utility model presents a top view of the mold cavity for the rear cover of a new energy electric vehicle engine.

[0013] Legend: 1. First main runner; 2. Second main runner; 3. First sub-runner; 4. Second sub-runner; 5. Third sub-runner; 6. Fourth sub-runner; 7. Fifth sub-runner; 8. Sixth sub-runner; 9. Seventh sub-runner; 10. Gate; 11. Part body; 12. Part cavity; 13. First overflow groove; 14. Second overflow groove; 15. Third overflow groove; 16. Fourth overflow groove; 17. Fifth overflow groove; 18. Sixth overflow groove; 19. Seventh overflow groove; 20. Eighth overflow groove; 21. Ninth overflow groove; 22. Tenth overflow groove; 23. Eleventh overflow groove; 24. Runner cone; 25. Mold body; 26. Venting groove. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0016] Example 1, as Figure 1 As shown, this utility model provides a mold cavity for a rear cover of a new energy electric vehicle engine, including a mold body 25. A part cavity 12 is provided at the top of the mold body 25, and a part body 11 is provided inside the part cavity 12. A first main runner 1 is provided at one end of the mold body 25, and a second main runner 2 is provided on one side of the first main runner 1. A first sub-runner 3, a second sub-runner 4, a third sub-runner 5, and a fourth sub-runner 6 are provided on the outer side of the first main runner 1. A fifth sub-runner 7, a sixth sub-runner 8, and a seventh sub-runner 9 are provided on the outer side of the second main runner 2. A gate 10 is provided at one end of the part cavity 12. The first sub-runner 3, the second sub-runner 4, the third sub-runner 5, the fourth sub-runner 6, the fifth sub-runner 7, the sixth sub-runner 8, and the seventh sub-runner 9 are all connected to the part cavity 12 through the gate 10.

[0017] The overall effect of Embodiment 1 is that the mold cavity of the mold body 25 includes seven gates 10, two main runners, seven sub-runners, a part cavity 12, eleven overflow channels, and eleven venting channels 26. The runners consist of a first main runner 1 and a second main runner 2, with the lower end connected to the runner cone 24 and the upper end connected to the seven sub-runners respectively. The sub-runners are connected to the part cavity 12 through the gates 10. The exterior of the part cavity 12 is connected to the eleven overflow channels. This improves upon the traditional casting part cavity 12 by adopting a design with two main runners and seven sub-runners. This solves the problems of poor formability and low filling efficiency of thin-walled castings. At the same time, the design of multi-point ingates 10 fully considers the shape characteristics and forming capacity of the part body 11, thereby obtaining high-performance, high-quality castings.

[0018] Example 2, as Figure 1As shown, there are seven gates 10, which are respectively connected to the first sub-sprue 3, the second sub-sprue 4, the third sub-sprue 5, the fourth sub-sprue 6, the fifth sub-sprue 7, the sixth sub-sprue 8, and the seventh sub-sprue 9. The mold body 25 has the following overflow channels connected to the other end of the part cavity 12: the first overflow channel 13, the second overflow channel 14, the third overflow channel 15, the fourth overflow channel 16, the fifth overflow channel 17, the sixth overflow channel 18, the seventh overflow channel 19, the eighth overflow channel 20, the ninth overflow channel 21, and the tenth overflow channel 22. Overflow groove 22 and eleventh overflow groove 23, first overflow groove 13, second overflow groove 14, third overflow groove 15, fourth overflow groove 16, fifth overflow groove 17, sixth overflow groove 18, seventh overflow groove 19, eighth overflow groove 20, ninth overflow groove 21, tenth overflow groove 22 and eleventh overflow groove 23 are all connected to an exhaust groove 26 at the end away from the part cavity 12. One end of the exhaust groove 26 penetrates the mold body 25. A flow divider cone 24 is installed on one side of the first main runner 1 at one end of the mold body 25.

[0019] The overall effect of Embodiment 2 is that it improves the traditional casting part cavity 12 by adopting a design of two main runners and seven sub-runners. This solves the problems of poor formability and low filling efficiency of thin-walled castings. At the same time, the design of multi-point ingate 10 fully considers the shape characteristics and forming capacity of the main body 11 of the part, thereby obtaining high-performance and high-quality castings.

[0020] Working principle: When in use, the device injects through the flow divider cone 24. Through the flow of multiple main runners and multiple sub-runners, it enters the part cavity 12 evenly and quickly for rapid injection molding. It improves the traditional casting part cavity 12 by adopting a design of two main runners and seven sub-runners. This solves the problems of poor formability and low filling efficiency of thin-walled castings. At the same time, the design of multi-point ingate 10 fully considers the shape characteristics and forming capacity of the part body 11, thereby obtaining high-performance and high-quality castings.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A mold cavity for the rear cover of a new energy electric vehicle engine, comprising a mold body (25), characterized in that: The top of the mold body (25) is provided with a part cavity (12), and the part body (11) is provided inside the part cavity (12). One end of the mold body (25) is provided with a first main runner (1), and one side of the first main runner (1) is provided with a second main runner (2). The outer side of the first main runner (1) is connected to a first sub-runner (3), a second sub-runner (4), a third sub-runner (5) and a fourth sub-runner (6). The outer side of the second main runner (2) is connected to a fifth sub-runner (7), a sixth sub-runner (8) and a seventh sub-runner (9). One end of the part cavity (12) is provided with a gate (10). The first sub-runner (3), the second sub-runner (4), the third sub-runner (5), the fourth sub-runner (6), the fifth sub-runner (7), the sixth sub-runner (8) and the seventh sub-runner (9) are all connected to the part cavity (12) through the gate (10).

2. The mold cavity for the rear cover of a new energy electric vehicle engine according to claim 1, characterized in that: The number of gates (10) is seven, and the seven gates (10) are respectively connected to the first sub-gating channel (3), the second sub-gating channel (4), the third sub-gating channel (5), the fourth sub-gating channel (6), the fifth sub-gating channel (7), the sixth sub-gating channel (8) and the seventh sub-gating channel (9).

3. The mold cavity for the rear cover of a new energy electric vehicle engine according to claim 1, characterized in that: The mold body (25) is connected to the other end of the part cavity (12) with the first overflow groove (13), the second overflow groove (14), the third overflow groove (15), the fourth overflow groove (16), the fifth overflow groove (17), the sixth overflow groove (18), the seventh overflow groove (19), the eighth overflow groove (20), the ninth overflow groove (21), the tenth overflow groove (22) and the eleventh overflow groove (23).

4. The mold cavity for the rear cover of a new energy electric vehicle engine according to claim 3, characterized in that: The first overflow groove (13), the second overflow groove (14), the third overflow groove (15), the fourth overflow groove (16), the fifth overflow groove (17), the sixth overflow groove (18), the seventh overflow groove (19), the eighth overflow groove (20), the ninth overflow groove (21), the tenth overflow groove (22) and the eleventh overflow groove (23) are all connected to an exhaust groove (26) at the end away from the part cavity (12), and one end of the exhaust groove (26) penetrates the mold body (25).

5. The mold cavity for the rear cover of a new energy electric vehicle engine according to claim 1, characterized in that: One end of the mold body (25) is equipped with a flow divider cone (24) located on one side of the first main runner (1).

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