Die-casting die runner structure of new energy automobile control shell

Abstract

The invention relates to the technical field of die-casting die runners, in particular to a die-casting die runner structure of a new energy automobile control shell. Based on a control shell casting body, the control shell casting body comprises a bottom shell and side plates which are arranged on the periphery of the bottom shell and extend in the Z direction; the runner structure comprises a sprue stub bar; the two main runners are connected to the sprue stub bar; the branch runners are connected to the main runner, the tail ends of the branch runners are connected to the upper ends of side plates, deviating from the X-direction side, of the bottom shell, and olecranon type connecting parts bent downwards are arranged at the joints of the branch runners and the side plates; through the improvement, a cavity can be stably filled with molten metal, vortexes and air entrapment are reduced, the pressure loss of the molten aluminum can be effectively reduced, molding of ribs in the middle of a product is facilitated, die drawing at a pouring gate of the product can be reduced, backflow of the molten aluminum during pressure fluctuation is prevented, and the problems of cold shut, bubbles and the like caused by repeated flowing of materials are solved.

Description

Technical Field

[0001] This invention relates to the field of die-casting mold flow channel technology, specifically to the flow channel structure of die-casting molds for control housings of new energy vehicles. Background Technology

[0002] The control housing of new energy vehicles is a key component of new energy vehicles. The design of its die-casting mold is difficult, mainly because its complex rib structure can easily cause eddies and air entrapment in the cavity, and the gate is prone to scouring and mold pulling. During die casting, the aluminum liquid is prone to pressure fluctuations and backflow, resulting in problems such as cold shuts and bubbles, which leads to an increase in the product defect rate. Summary of the Invention

[0003] The technical problem to be solved by this invention is to improve the flow channel structure of the die-casting mold for the control housing of new energy vehicles. By improving the structure of the inlet flow channel and the slag venting, the eddy currents and air entrapment in the cavity are reduced, the backflow of aluminum liquid pressure fluctuations is reduced, and the product defect rate is reduced.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: The flow channel structure of the die-casting mold for the control housing of a new energy vehicle is based on the control housing casting body, which includes a bottom shell and side plates extending in the Z direction around the bottom shell. The flow channel structure includes: Sprue head; Two main channels connected to the sprue head; Multiple branch channels are connected to the main channel. The end of the branch channel is connected to the upper part of the side plate on the side away from the X direction of the bottom shell. The gate at the connection between the end of the branch channel and the side plate is provided with a downwardly bent eagle beak-shaped connection part. The slag bag assembly includes multiple slag bag bodies, each slag bag body being connected to the upper and lower ends of the side plate on the X-direction side of the bottom shell; the other end of the slag bag body is connected to an exhaust pipe assembly.

[0005] Furthermore, in the die-casting mold flow channel structure of the aforementioned new energy vehicle control housing, the slag bag assembly includes a first slag bag group connected to the lower edge of the Y-direction end on the X-direction side of the bottom shell. The first slag bag group includes a first slag bag, a second slag bag, a third slag bag, and a fourth slag bag arranged sequentially, as well as a fifth slag bag connected to the upper edge of the Y-direction end on the X-direction side of the bottom shell. The exhaust pipe group includes a first exhaust channel, and the tail ends of the first slag bag, the second slag bag, the third slag bag, the fourth slag bag, and the fifth slag bag converge at the first exhaust channel.

[0006] Furthermore, in the die-casting mold flow channel structure of the aforementioned new energy vehicle control housing, each main flow channel is connected to three branch flow channels.

[0007] Furthermore, in the die-casting mold flow channel structure of the aforementioned new energy vehicle control housing, the width of the end of the flow channel gradually increases to be wider than the width of its middle section.

[0008] Furthermore, in the die-casting mold flow channel structure of the aforementioned new energy vehicle control housing, the slag bag assembly also includes a second slag bag group. The second slag bag group consists of multiple slag bag bodies connected to the lower edge of the Y-direction end on the X-direction side of the bottom shell, wherein the tail ends of every four slag bag bodies converge into an exhaust channel.

[0009] Furthermore, in the die-casting mold flow channel structure of the aforementioned new energy vehicle control housing, the slag bag assembly also includes a third slag bag group. The third slag bag group consists of five slag bag bodies connected to the upper edge of the Y-direction end on the X-direction side of the bottom shell, and the tail ends of the five slag bag bodies converge into an exhaust channel.

[0010] The beneficial effects of this invention are as follows: the end of the runner is connected to the upper end of the side plate on the side away from the X direction of the bottom shell, and the connection between the runner and the side plate is provided with a downwardly bent eagle beak-shaped connection part, and the end is connected to the upper end of the side plate on the side away from the X direction of the bottom shell. This gate form of pouring along the wall thickness helps the molten metal to fill the cavity smoothly, reduces eddies and air entrapment, effectively reduces the pressure loss of molten aluminum, helps the forming of the middle rib of the product, and can reduce the pulling of the mold at the product gate. With the improved position and structure of the slag pot and the venting pipe group, the slag pot prevents the molten aluminum from flowing back when the pressure fluctuates through the unidirectional flow design, avoiding problems such as cold shut and bubbles caused by repeated material flow. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the flow channel mechanism of a die-casting mold for a control housing of a new energy vehicle, according to a specific embodiment of the present invention. Label Explanation: 1. Control housing casting body; 11. Bottom shell; 111. Central rib; 12. Side plate; 2. Sprue head; 3. Mainstream path; 4. Diversion channel; 41. Eagle beak type connector; 5. Slag bag assembly; 51. First slag bag group; 511. First slag bag; 512. Second slag bag; 513. Third slag bag; 514. Fourth slag bag; 515. Fifth slag bag; 52. First exhaust duct; 53. Second slag bag group; 54. Third slag bag group. Detailed Implementation

[0012] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0013] Please refer to Figure 1The specific embodiments of the present invention relate to a die-casting mold flow channel structure for a control housing of a new energy vehicle. Based on the control housing casting body 1, the control housing casting body 1 includes a bottom shell 11 and side plates 12 arranged around the bottom shell 11 extending in the Z direction. The flow channel structure includes: 2. Sprue head; Two main channels 3 are connected to the sprue head 2; Multiple branch channels 4 are connected to the main channel 3. The end of the branch channel 4 is connected to the upper end of the side plate 12 on the side away from the X direction of the bottom shell 11. The connection between the branch channel 4 and the side plate 12 is provided with a downwardly bent eagle beak-shaped connection part 41. The slag bag assembly 5 includes multiple slag bag bodies, each of which is connected to the upper and lower ends of the side plate 12 on the X-direction side of the bottom shell 11; the other end of the slag bag body is connected to an exhaust pipe assembly.

[0014] In the above embodiments, the end of the runner 4 is connected to the upper end of the side plate 12 on the side away from the X direction of the bottom shell 11. The connection between the runner 4 and the side plate 12 is provided with a downwardly bent beak-shaped connecting part 41, and the end is connected to the upper end of the side plate 12 on the side away from the X direction of the bottom shell 11. This gate form of pouring along the wall thickness helps the molten metal to fill the cavity smoothly, reduces eddies and air entrapment, effectively reduces the pressure loss of molten aluminum, helps the forming of the middle rib 111 of the product, and can reduce the pulling of the mold at the product gate and reduce the internal air holes or shrinkage cavities in the thick wall of the product.

[0015] In a preferred embodiment, the slag bag assembly 5 includes a first slag bag group connected to the lower edge of the Y-direction end on the X-direction side of the bottom shell 11. The first slag bag group includes a first slag bag 511, a second slag bag 512, a third slag bag 513, and a fourth slag bag 514 arranged sequentially, and a fifth slag bag 515 connected to the upper edge of the Y-direction end on the X-direction side of the bottom shell 11. The exhaust pipe group includes a first exhaust duct 52, and the tail ends of the first slag bag 511, the second slag bag 512, the third slag bag 513, the fourth slag bag 514, and the fifth slag bag 515 converge in the first exhaust duct 52.

[0016] In the above embodiments, the position and structure of the slag bag and the exhaust pipe assembly are improved. The slag bag is designed to prevent the aluminum liquid from flowing back when the pressure fluctuates, thus avoiding problems such as cold shuts and bubbles caused by repeated material flow.

[0017] In a preferred embodiment, each main channel 3 is connected to three branch channels 4.

[0018] In a preferred embodiment, the width of the end of the diversion channel 4 gradually increases to be wider than the width of its middle section.

[0019] In a preferred embodiment, the slag bag assembly 5 further includes a second slag bag group 53, which consists of a plurality of slag bag bodies connected to the lower edge of the Y-direction end on the X-direction side of the bottom shell 11, wherein the tail ends of every four slag bag bodies converge into an exhaust duct.

[0020] In a preferred embodiment, the slag bag assembly 5 further includes a third slag bag group 54, which consists of five slag bag bodies connected to the upper edge of the Y-direction end on the X-direction side of the bottom shell 11, and the tail ends of the five slag bag bodies converge into an exhaust duct.

[0021] In the above embodiments, the improvement of the slag bag structure further avoids problems such as cold shuts and bubbles caused by repeated material flow.

[0022] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A flow channel structure for a die-casting mold of a control housing for a new energy vehicle, characterized in that, Based on the control housing casting body, the control housing casting body includes a bottom shell and side plates extending in the Z direction around the bottom shell; The flow channel structure includes: Sprue head; Two main channels connected to the sprue head; Multiple branch channels are connected to the main channel. The end of the branch channel is connected to the upper part of the side plate on the side away from the X direction of the bottom shell. The connection between the branch channel and the side plate is provided with a downwardly bent eagle beak-shaped connection part. The slag bag assembly includes multiple slag bag bodies, each slag bag body being connected to the upper and lower ends of the side plate on the X-direction side of the bottom shell; the other end of the slag bag body is connected to an exhaust pipe assembly.

2. The flow channel structure of the die-casting mold for the control housing of a new energy vehicle according to claim 1, characterized in that, The slag bag assembly includes a first slag bag group connected to the lower edge of the Y-direction end on the X-direction side of the bottom shell. The first slag bag group includes a first slag bag, a second slag bag, a third slag bag, and a fourth slag bag arranged in sequence, and a fifth slag bag connected to the upper edge of the Y-direction end on the X-direction side of the bottom shell. The exhaust pipe group includes a first exhaust channel. The tail ends of the first slag bag, the second slag bag, the third slag bag, the fourth slag bag, and the fifth slag bag converge in the first exhaust channel.

3. The die-casting mold flow channel structure for the control housing of a new energy vehicle according to claim 1, characterized in that, Each main channel is connected to three branch channels.

4. The flow channel structure of the die-casting mold for the control housing of a new energy vehicle according to claim 1, characterized in that, The width of the end of the branch channel gradually increases compared to the width of its middle section.

5. The die-casting mold flow channel structure for the control housing of a new energy vehicle according to claim 1, characterized in that, The slag bag assembly also includes a second slag bag group, which consists of multiple slag bag bodies connected to the lower edge of the Y-direction end on the X-direction side of the bottom shell, wherein the tail ends of every four slag bag bodies converge into an exhaust duct.

6. The flow channel structure of the die-casting mold for the control housing of a new energy vehicle according to claim 1, characterized in that, The slag bag assembly also includes a third slag bag group, which consists of five slag bag bodies connected to the upper edge of the Y-direction end on the X-direction side of the bottom shell, and the tail ends of the five slag bag bodies converge into an exhaust duct.

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