New energy automobile storage battery box hot extrusion die capable of reducing deflection

Abstract

The utility model discloses a new energy automobile storage battery box hot extrusion die capable of reducing deflection, comprising a die body, the die body comprises an upper die, the upper die is internally provided with a shunting bridge, the upper die is divided by the shunting bridge to form a plurality of shunting holes used for guiding an aluminum flow into the upper die, and an annular plate, and the upper die is connected with the side surface at the outlet of the shunting hole. According to the utility model, the eight shunting holes are arranged, so that aluminum flow is prevented from being gathered to impact a certain position, the pressure is indirectly shared for the auxiliary die core, and when aluminum flows out through the back hole, the baffle bridge shares the impact force from the aluminum flow on the auxiliary die core in advance, so that the deflection of the auxiliary die core is effectively reduced on the premise of ensuring sufficient aluminum flow supply at the auxiliary die core, and the service life of the auxiliary die core is prolonged. It is guaranteed that aluminum flow can stably flow to the lower die to enter the cavity, production of the new energy automobile storage battery box is completed, the quality of a new energy automobile storage battery box finished product produced through the die body is better, and the die body is not prone to being scrapped.

Description

Technical Field

[0001] The utility model specifically relates to a hot extrusion die for a battery box of a new energy vehicle which can reduce deflection. Background Art

[0002] Aluminum alloy has low density, but relatively high strength, good plasticity, good extrusion formability, excellent electrical conductivity, thermal conductivity and corrosion resistance, and is safe and recyclable. Therefore, it is widely used in technical fields such as construction, electric vehicles, ships, aerospace, etc. With the widespread rise of new energy vehicles, the application of aluminum profiles in new energy vehicles is also increasing. Among them, the battery box of new energy vehicles is a kind of aluminum profile product, which can effectively protect the power battery in the battery box. It is mainly made by hot extrusion die. Therefore, the quality of the die is inseparable from the molding quality of the battery box, which indirectly affects the production quality of the battery box of new energy vehicles.

[0003] However, in actual use, the hot extrusion die currently used to produce battery boxes has a complex cross-section. The die core used consists of a main die core and a secondary die core. The secondary die cores are numerous and small, and have low strength. Under the impact of the aluminum flow, they are prone to deflection, which not only affects the quality of the finished aluminum profile, but also causes the mold body to be scrapped early. Improvements are urgently needed.

[0004] Therefore, it is necessary to invent a hot extrusion die for a new energy vehicle battery box that can reduce the deflection to solve the above problems. Utility Model Content

[0005] (1) Purpose of the utility model

[0006] In order to solve the technical problems existing in the background technology, the utility model proposes a hot extrusion die for a new energy vehicle battery box which can reduce the deflection. By setting eight diversion holes, it can avoid the aluminum flow from gathering and impacting a certain place, and indirectly share the pressure for the sub-mold core. When the aluminum flow flows out through the back hole, the bridge shares the impact force of the aluminum flow on the sub-mold core in advance, and effectively reduces the deflection of the sub-mold core on the premise of ensuring sufficient aluminum flow supply at the sub-mold core, ensuring that the aluminum flow can flow smoothly to the lower mold into the cavity, and completing the production of the new energy vehicle battery box. The finished product of the new energy vehicle battery box produced by the mold body is of better quality, and the mold body is not easy to be scrapped, which is conducive to promotion and use.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a hot extrusion die for a new energy vehicle battery box capable of reducing deflection, comprising a die body, the die body comprising:

[0009] An upper die, wherein a diverter bridge is provided inside the upper die, and the upper die is divided into a plurality of diverter holes by the diverter bridge, for guiding the aluminum flow into the interior of the upper die;

[0010] An annular plate is connected to the side of the upper mold at the outlet of the diversion hole. A main mold core is provided inside the annular plate, and auxiliary mold cores are provided on the left and right sides of the main mold core. The main mold core and the auxiliary mold core are connected to the annular plate through connecting columns;

[0011] Among them, the two diversion holes aligned with the auxiliary mold core are both installed with a blocking bridge, which divides the above two diversion holes into two, forming two back holes for guiding the aluminum flow directly to the auxiliary mold core, so as to reduce the deflection of the auxiliary mold core.

[0012] Preferably, there are eight diversion holes, six of which are arranged in groups of three on the upper and lower sides of the two secondary mold cores, and the remaining two diversion holes aligned with the secondary mold cores are located on the left and right sides of the main mold core.

[0013] Preferably, the thickness of the upper die is set to 160 mm, and the blocking bridge is located 70 mm vertically downward from the feed surface of the diversion hole.

[0014] Preferably, a hole is formed between every two adjacent connecting columns and the main mold core or the auxiliary mold core, and each of the holes is adapted to the diversion hole aligned therewith.

[0015] Preferably, the mold body further comprises a lower mold located at the bottom of the upper mold, and the top of the lower mold is respectively provided with a welding chamber, a cavity connected to the welding chamber, and a discharge hole connected to the cavity from top to bottom.

[0016] Preferably, the mold body further comprises a lower mold located at the bottom of the upper mold, and the top of the lower mold is respectively provided with a welding chamber, a cavity connected to the welding chamber, and a discharge hole connected to the cavity from top to bottom.

[0017] Preferably, after the main mold core and the auxiliary mold core are inserted into the mold cavity, a molding gap can be formed between them and the inner wall of the lower mold located at the mold cavity, which is used for the production of aluminum profiles for battery boxes of new energy vehicles.

[0018] Preferably, the discharge hole is arranged in a stepped shape for extruding the formed aluminum profile of the new energy vehicle battery box.

[0019] Preferably, the upper mold, the annular plate, and the lower mold are tightly fitted with each other through locking pieces and assembled into a mold body.

[0020] Compared with the prior art, the beneficial effects of the above technical solution of the utility model are:

[0021] The utility model is provided with eight diversion holes, which divide the aluminum flow flowing into the upper mold into eight, so as to avoid the aluminum flow gathering and impacting a certain place, so that the pressure distribution of the aluminum flow is uniform, the flow is smooth and orderly, and the pressure is indirectly shared for the sub-mold core. The diversion hole facing the sub-mold core is divided into two again by the retaining bridge inside it, that is, the aluminum flow flows out through the back hole, so that the aluminum flow can rush directly to the sub-mold core. Under the premise of ensuring sufficient material supply, the retaining bridge is used to share the impact force of the aluminum flow on the sub-mold core in advance, effectively reducing the deflection of the sub-mold core, and even making the sub-mold core no longer deflect, ensuring that the aluminum flow can flow smoothly to the lower mold into the cavity, and the new energy vehicle battery box aluminum profile is formed through the forming gap, and then discharged through the discharge hole to complete the production of the new energy vehicle battery box. The finished new energy vehicle battery box produced by this mold body is of better quality, and the mold body is not easy to be scrapped, which is conducive to promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is an exploded view of the utility model;

[0025] Figure 3 This is an exploded view of the upper die and the annular plate of the utility model;

[0026] Figure 4 This is a structural diagram of the upper mold of the utility model;

[0027] Figure 5 It is a three-dimensional diagram of the utility model;

[0028] Figure 6 This is a three-dimensional diagram from another perspective of the present invention.

[0029] Description of reference numerals:

[0030] 1 mold body, 2 upper mold, 21 diverter bridge, 22 diverter hole, 23 blocking bridge, 24 back hole;

[0031] 3 annular plate, 31 main mold core, 32 auxiliary mold core, 33 connecting column, 34 hole;

[0032] 4 lower die, 41 welding chamber, 42 cavity, 43 discharge hole, 44 protrusion. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] The utility model provides Figure 1-6 A hot extrusion die for a new energy vehicle battery box capable of reducing deflection is shown, comprising a die body 1, wherein the die body 1 comprises:

[0035] An upper die 2 is provided with a diverter bridge 21 inside the upper die 2 and is divided into a plurality of diverter holes 22 by the diverter bridge 21 for guiding the aluminum flow into the interior of the upper die 2;

[0036] The annular plate 3 is connected to the side of the upper mold 2 at the outlet of the diverter hole 22. A main mold core 31 is provided inside the annular plate 3, and auxiliary mold cores 32 are provided on the left and right sides of the main mold core 31. The main mold core 31 and the auxiliary mold core 32 are connected to the annular plate 3 by connecting columns 33.

[0037] Among them, a blocking bridge 23 is installed inside the two diversion holes 22 aligned with the auxiliary mold core 32. The blocking bridge 23 divides the above two diversion holes 22 into two, forming two back holes 24 for guiding the aluminum flow directly to the auxiliary mold core 32, so as to reduce the deflection of the auxiliary mold core 32.

[0038] In one embodiment, there are eight diversion holes 22, six of which are located in groups of three on the upper and lower sides of the two secondary mold cores 32, and the remaining two diversion holes 22 aligned with the secondary mold core 32 are located on the left and right sides of the main mold core 31, so that the aluminum flow is divided into eight, and the aluminum flow directly rushing towards the secondary mold core 32 is further divided into two, which effectively balances the impact force of the aluminum flow on the upper mold 2 and indirectly improves the stability of the secondary mold core 32. The thickness of the upper mold 2 is set to 160 mm, and the blocking bridge 23 is located 70 mm vertically downward from the feed surface of the diversion hole 22, which limits the flow path length of the aluminum flow and reduces the flow time of the aluminum flow in the upper mold 2, thereby reducing the extrusion force on the upper mold 2. A hole 34 is formed between each two adjacent connecting columns 33 and the main mold core 31 or the secondary mold core 32, and each of the holes 34 is adapted to the diversion hole 22 aligned with it, for guiding the aluminum flow into the welding chamber 41 to complete the production of the battery box of the new energy vehicle.

[0039] In one embodiment, the mold body 1 also includes a lower mold 4 located at the bottom of the upper mold 2. The top of the lower mold 4 is respectively provided with a welding chamber 41, a cavity 42 connected to the welding chamber 41, and a discharge hole 43 connected to the cavity 42. After the main mold core 31 and the auxiliary mold core 32 are inserted into the cavity 42, a molding gap can be formed between the inner wall of the lower mold 4 located at the cavity 42, which is used for the production of aluminum profiles for battery boxes of new energy vehicles.

[0040] In one embodiment, the welding chamber 41 is square in shape as a whole, and the four inner walls have at least two protrusions 44 protruding toward the cavity 42. The discharge hole 43 is set in a stepped shape for extruding the aluminum profile of the new energy vehicle battery box after forming, so as to avoid the accumulation of aluminum flow inside the welding chamber 41, so that the aluminum flow can flow out smoothly through the welding chamber 41 during extrusion, thereby reducing the influence of excess aluminum flow on the forming of the new energy vehicle battery box.

[0041] In one embodiment, the upper mold 2, the annular plate 3, and the lower mold 4 are assembled into a mold body 1 by tightening each other through locking parts, which makes it easy for the staff to assemble the mold body 1, and the locking parts are set as pins or bolts to facilitate the operation of the staff.

[0042] The specific implementation method is as follows: When the present invention is in use, aluminum flows into the interior of the upper mold 2 through the inlet at the top of the diverter hole 22. The arrangement of the eight diverter holes 22 divides the aluminum flow into eight, effectively balancing the impact force of the aluminum flow, thereby preventing the aluminum flow from converging and impacting a certain point, causing a large impact force on the upper mold 2 and causing damage. The pressure is indirectly shared by the secondary mold core 32, so that the aluminum flow flows smoothly in the upper mold 2, the pressure is evenly distributed, and the flow is smooth and orderly, providing a good environment for the use of the secondary mold core 32.

[0043] At the same time, the two blocking bridges 23 on the left and right sides can divide the aluminum flow in the diversion hole 22 into two again, and flow out through the back hole 24, so that the aluminum flow can rush straight to the left and right sides of the auxiliary mold core 32, that is, the aluminum flow flowing out between the auxiliary mold core 32 and the main mold core 31 ensures sufficient supply of the auxiliary mold core 32 and the main mold core 31, and the blocking bridges 23 share the impact force of the aluminum flow on the auxiliary mold core 32 when rushing straight, thereby directly reducing the impact force on the auxiliary mold core 32, thereby reducing the deflection of the auxiliary mold core 32, and even making the auxiliary mold core 32 no longer deflect, ensuring that the aluminum flow can flow smoothly to the lower mold 4;

[0044] Furthermore, after flowing through the welding chamber 41, the aluminum flow enters the cavity 42, and is formed into an aluminum profile of a new energy vehicle battery box through the forming gap, and then discharged through the discharge hole 43 to complete the production of the new energy vehicle battery box. When the aluminum flow flows in the welding chamber 41, the protrusion 44 can reduce the flow rate of the aluminum flow inside the welding chamber 41 without affecting the operation of the cavity 42, thereby avoiding the accumulation of the aluminum flow inside the welding chamber 41, so that the aluminum flow can flow out smoothly through the welding chamber 41, reducing the influence of excess aluminum flow on the molding of the new energy vehicle battery box, so that the finished product of the new energy vehicle battery box produced by the mold body 1 is of better quality, and the mold body 1 is not easily scrapped, which is conducive to its promotion and use.

[0045] This embodiment specifically solves the problem that in the actual use of the hot extrusion mold currently used for producing battery boxes in the prior art, due to the complex cross-section of the main profile of the battery box, the mold core of the mold body 1 used is composed of a main mold core 31 and a sub-mold core 32, and the sub-mold core 32 is numerous and small, and has low strength. Under the impact of the aluminum flow, it is easy to swing, which not only affects the quality of the finished aluminum profile, but also causes the mold body 1 to be scrapped early, and urgently needs to be improved.

[0046] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hot extrusion die for a new energy vehicle battery box capable of reducing deflection, characterized by: The mold body (1) comprises: An upper mold (2), wherein a diversion bridge (21) is provided inside the upper mold (2), and the upper mold (2) is divided into a plurality of diversion holes (22) by the diversion bridge (21) for guiding the aluminum flow into the interior of the upper mold (2); An annular plate (3) is connected to the side surface of the upper mold (2) at the outlet of the diversion hole (22), a main mold core (31) is provided inside the annular plate (3), and auxiliary mold cores (32) are provided on the left and right sides of the main mold core (31), and the main mold core (31) and the auxiliary mold core (32) are both connected to the annular plate (3) via connecting columns (33); Wherein, a blocking bridge (23) is installed inside the two diversion holes (22) aligned with the auxiliary mold core (32), and the blocking bridge (23) divides the two diversion holes (22) into two, forming two back holes (24) for guiding the aluminum flow to directly hit the auxiliary mold core (32), so as to reduce the deflection of the auxiliary mold core (32).

2. The hot extrusion die for a new energy vehicle battery box capable of reducing deflection according to claim 1, characterized in that: There are eight diversion holes (22), six of which are arranged in groups of three and are located on the upper and lower sides of the two secondary mold cores (32), and the remaining two diversion holes (22) aligned with the secondary mold cores (32) are located on the left and right sides of the main mold core (31).

3. The hot extrusion die for a new energy vehicle battery box capable of reducing deflection according to claim 1, characterized in that: The thickness of the upper die (2) is set to 160 mm, and the blocking bridge (23) is located 70 mm vertically downward from the feed surface of the diversion hole (22).

4. The hot extrusion die for a new energy vehicle battery box capable of reducing deflection according to claim 1, characterized in that: A hole (34) is formed between each two adjacent connecting columns (33) and the main mold core (31) or the auxiliary mold core (32), and each hole (34) is adapted to the diversion hole (22) aligned therewith.

5. The hot extrusion die for a new energy vehicle battery box capable of reducing deflection according to claim 1, characterized in that: The mold body (1) further comprises a lower mold (4) located at the bottom of the upper mold (2), and the top of the lower mold (4) is provided with a welding chamber (41), a mold cavity (42) connected to the welding chamber (41), and a discharge hole (43) connected to the mold cavity (42) from top to bottom.

6. The hot extrusion die for a new energy vehicle battery box capable of reducing deflection according to claim 5, characterized in that: The welding chamber (41) is square in shape as a whole, and the four inner walls are provided with at least two protrusions (44) protruding toward the cavity (42).

7. The hot extrusion die for a new energy vehicle battery box capable of reducing deflection according to claim 5, characterized in that: After the main mold core (31) and the auxiliary mold core (32) are inserted into the mold cavity (42), a forming gap can be formed between the main mold core (31) and the auxiliary mold core (32) and the inner wall of the lower mold (4) located at the mold cavity (42), and the main mold core (31) and the auxiliary mold core (32) are used for the production of aluminum profiles for battery boxes of new energy vehicles.

8. The hot extrusion die for a new energy vehicle battery box capable of reducing deflection according to claim 5, characterized in that: The discharge hole (43) is arranged in a stepped shape and is used for extruding the formed aluminum profile of the battery box of the new energy vehicle.

9. The hot extrusion die for a new energy vehicle battery box capable of reducing deflection according to claim 5, characterized in that: The upper die (2), the annular plate (3), and the lower die (4) are tightly fitted with each other through locking pieces and assembled into a die body (1).

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