Distributed liquid injection mold for new energy vehicle heating core production

Abstract

The invention relates to the field of heating core production equipment, and provides a distributed liquid injection mold for new energy vehicle heating core production, which comprises a first mold base, a second mold base and a third mold base which are arranged in sequence, the first die holder is provided with a liquid injection hole and a plurality of first runners connected with the liquid injection hole; forming grooves are formed in the sides, facing each other, of the second die holder and the third die holder, the two forming grooves jointly form a cavity, second runners are formed in the second die holder, and any first runner communicates with the cavity through the multiple second runners; a first overflow cavity communicated with the cavity is formed in the second die holder; the third die holder comprises a first sub-die holder and a second sub-die holder, the first sub-die holder and the second sub-die holder jointly form a corresponding forming groove, and the first sub-die holder is arranged on the second sub-die holder in a sliding mode. The problem that the heating core forming effect is poor is solved.

Description

Technical Field

[0001] The present application relates to the field of heating core production equipment, and in particular to a distributed liquid injection mold for the production of heating cores for new energy vehicles. Background Art

[0002] The heating core of new energy vehicles mainly refers to the core components used to generate heat or perform thermal management in new energy vehicles. These components play a vital role in the operation of new energy vehicles, especially in the thermal management of batteries and motors, which generates heat so that the batteries can operate at a suitable temperature.

[0003] The traditional production method of heating cores is to melt the raw materials and inject them into the mold for shaping. However, the raw materials lose a lot of heat when flowing in the cavity, resulting in poor fluidity, which may cause the cavity to not be fully filled, and then lead to material shortages in the final product. In addition, in order to improve the heat dissipation performance, traditional heating cores usually adopt a multi-pleated structure design, which makes the mold cavity have many narrow gaps, and these narrow gaps may not be fully filled with raw materials, resulting in product shortages. Summary of the invention

[0004] In order to solve the problem of poor molding effect of the heating core, the present application provides a distributed liquid injection mold for the production of heating cores for new energy vehicles.

[0005] The distributed liquid injection mold for the production of heating cores for new energy vehicles provided in this application adopts the following technical solution: A distributed liquid injection mold for the production of a heating core of a new energy vehicle, comprising a first mold base, a second mold base and a third mold base arranged in sequence; The first mold base has a liquid injection hole and a plurality of first flow channels connected to the liquid injection hole; The second mold base and the third mold base are both provided with a molding groove on one side facing the other, and the two molding grooves together constitute a mold cavity. The second mold base is provided with a second flow channel, and any of the first flow channels is connected to the mold cavity through a plurality of the second flow channels; The second mold base is provided with a first overflow cavity connected with the mold cavity; The third mold base includes a first sub-mold base and a second sub-mold base, the first sub-mold base and the second sub-mold base together constitute the corresponding molding groove, and the first sub-mold base is slidably disposed on the second sub-mold base.

[0006] By adopting the above technical solution, the distributed liquid injection mold can evenly and fully fill the entire cavity with materials, thereby improving product quality. Specifically: The design of multiple first flow channels and multiple second flow channels ensures that the liquid can be evenly distributed to various parts of the cavity, avoiding the situation where the material is partially overfilled or insufficient during injection.

[0007] The first overflow chamber recycles excess material to prevent overflow and contamination of equipment, thus helping to form high-quality products.

[0008] Preferably, the first sub-mold seat has a first state and a second state; In the first state, the size of the cavity is larger than the size of the preset cavity; In the second state, the size of the cavity is equal to the size of the preset cavity; The material is injected into the cavity in the first state.

[0009] By adopting the above solution, the first sub-mold seat can squeeze the material into the cavity, so that the material fully fills the entire cavity.

[0010] Preferably, the second mold base is provided with an inclined rod, which is inclined relative to the arrangement direction of the second mold base and the third mold base. The second sub-mold base is provided with a through hole, and the inclined rod passes through the first sub-mold base and enters the through hole. When the third mold base approaches or moves away from the second mold base, the first sub-mold base slides relative to the second sub-mold base.

[0011] By adopting the above solution, the first sub-mold base can be driven to move only by driving the third mold base to approach or move away from the second mold base.

[0012] Preferably, a second overflow cavity is further provided on the third mold base, the second overflow cavity is communicated with the mold cavity, and the bottom height of the second overflow cavity is lower than the bottom height of the mold cavity.

[0013] By adopting the above solution, the material can carry the impurity particles inside the cavity into the second overflow cavity after entering the cavity, thereby achieving a cleaning effect.

[0014] Preferably, the bottom height of the first overflow cavity is higher than or equal to the top height of the cavity.

[0015] By adopting the above technical solution, the probability of material overflowing from the cavity during the injection process can be effectively reduced, thereby ensuring the molding quality.

[0016] Preferably, the distributed liquid injection mold for the production of the heating core of the new energy vehicle further comprises a slider and an elastic member; The slider and the elastic member are both arranged in the first overflow cavity, the slider is slidably fitted with the inner wall of the first overflow cavity, and the opposite ends of the elastic member are respectively connected to the inner wall of the first overflow cavity and the slider.

[0017] By adopting the above technical solution, the elastic force of the elastic member enables the slider to have a tendency to push the material in the first overflow cavity back into the cavity, thereby ensuring that the cavity is fully filled.

[0018] Preferably, the distributed liquid injection mold for the production of the heating core of a new energy vehicle further comprises a slider and a drive assembly; The slider is arranged in the first overflow cavity and is slidably fitted with the inner wall of the first overflow cavity. The driving component is connected to the slider and is used to drive the slider to slide.

[0019] By adopting the above solution, the driving assembly can move by driving the slider, thereby pushing the material in the first overflow cavity back into the cavity, ensuring that the cavity is fully filled and improving the molding quality.

[0020] Preferably, the driving assembly further comprises a driving member, an elastic member and a pressure sensor, the pressure sensor is arranged between the driving member and the elastic member and connected to both of them respectively, and one end of the elastic member away from the pressure sensor is connected to the slider.

[0021] By adopting the above solution, the driving member can drive the slider to move. The elastic member can play a buffering role to prevent damage to various components caused by excessive force applied by the driving member to the slider. The pressure sensor can timely detect the pressure value when the driving member pushes the slider to prevent damage to the mold due to excessive pressure.

[0022] Preferably, an exhaust channel is provided on the second mold base and / or the third mold base, part of the exhaust channel is directly connected to the first overflow chamber, and the remaining part of the exhaust channel is directly connected to the second overflow chamber.

[0023] By adopting the above technical solution, the exhaust channel provided on the second mold base and / or the third mold base can effectively exhaust the gas in the mold cavity, the first overflow cavity and the second overflow cavity, preventing bubbles from affecting the product quality. At the same time, the exhaust channel is not directly connected to the mold cavity, avoiding the exhaust process from affecting the molding quality of the product, which helps to improve the qualified rate of the product.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the sequential arrangement of the first die base, the second die base and the third die base, and the design of multiple first flow channels and second flow channels, the uniform distribution of the liquid in the cavity is achieved, solving the problem that the traditional single-point injection method is difficult to ensure the uniform filling of the large and complex structure heating core; 2. The first overflow cavity on the second mold base can discharge excess liquid in time, avoiding product quality problems caused by overfilling and reducing the scrap rate; 3. The sliding design between the first sub-mold base and the second sub-mold base enables the first sub-mold base to squeeze the material into the cavity, so that the material fully fills the entire cavity. In addition, after the material is shaped, the product can be demoulded by driving the first sub-mold base to move. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a distributed liquid injection mold for the production of heating cores for new energy vehicles provided in this application.

[0026] Figure 2 It is a partial schematic diagram of a distributed liquid injection mold for the production of heating cores for new energy vehicles provided in this application.

[0027] Figure 3 This is one of the cross-sectional views of the first embodiment of the distributed liquid injection mold for the production of heating cores for new energy vehicles provided in this application.

[0028] Figure 4 This is the second cross-sectional view of the first embodiment of the distributed liquid injection mold for the production of heating cores for new energy vehicles provided in the present application.

[0029] Figure 5 It is a cross-sectional view of the second embodiment of the distributed liquid injection mold for the production of heating cores for new energy vehicles provided in the present application.

[0030] Figure 6 This application provides Figure 5 A magnified schematic diagram of center A.

[0031] Description of reference numerals: 1. first mold base; 11. injection hole; 12. first flow channel; 2. Second mold base; 21. Second flow channel; 22. First overflow cavity; 23. Inclined rod; 3. third mold base; 31. first sub-mold base; 32. second sub-mold base; 321. recessed portion; 33. second overflow cavity; 4. Fourth die base; 5. Limiting column; 6. Cavity; 7. Slider; 8. Elastic part. DETAILED DESCRIPTION

[0032] The following is combined with Figures 1 to 6 This application is described in further detail.

[0033] Example 1

[0034] like Figures 1 to 3 As shown, an embodiment of the present application discloses a distributed liquid injection mold for the production of a heating core of a new energy vehicle, comprising a first mold base 1, a second mold base 2, a third mold base 3, a fourth mold base 4 and a limiting column 5 which are arranged in sequence.

[0035] Specifically, the limiting column 5 passes through the first mold base 1, the second mold base 2 and the third mold base 3, and the limiting column 5 partially penetrates into the fourth mold base 4, so that the limiting column 5 can limit the first mold base 1, the second mold base 2, the third mold base 3 and the fourth mold base 4.

[0036] The first mold base 1 is provided with a liquid injection hole 11 . The first mold base 1 has a plurality of parallel strip grooves on one side facing the second mold base 2 . A first flow channel 12 is formed between the strip grooves and the second mold base 2 , and any first flow channel 12 is connected to the liquid injection hole 11 .

[0037] The second die base 2 and the third die base 3 are provided with molding grooves on the side facing each other, and the shapes of the two molding grooves are allowed to be different. The two molding grooves together form a cavity 6, and the second die base 2 is provided with a second flow channel 21, and any first flow channel 12 is connected to the cavity 6 through multiple second flow channels 21.

[0038] For any first flow channel 12, a plurality of second flow channels 21 connected thereto are evenly spaced along the extension direction of the corresponding first flow channel 12. By providing a plurality of first flow channels 12 and a plurality of second flow channels 21, the molten material entering through the injection hole 11 can be evenly distributed in the cavity 6, ensuring that each part in the cavity 6 can be evenly filled, thereby improving the molding quality.

[0039] The third mold base 3 includes a first sub-mold base 31 and a second sub-mold base 32. The second sub-mold base 32 is provided with a slide groove, and the first sub-mold base 31 is slidably arranged in the slide groove. The first sub-mold base 31 is a part of the mold cavity 6, that is, at least one side wall of the first sub-mold base 31 is the inner wall of the mold cavity 6, so that the first sub-mold base 31 can change the size of the mold cavity 6 by sliding.

[0040] Before liquid injection, the first sub-mold base 31 is slid to make the size of the cavity 6 equal to the preset cavity size. After that, the material enters the cavity 6 through the injection hole 11, the first flow channel 12 and the second flow channel 21 in sequence, thereby evenly filling the entire cavity 6. The molding process is completed after the material is cooled and shaped.

[0041] The second mold base 2 is provided with a first overflow cavity 22 connected to the mold cavity 6. The top height of the first overflow cavity 22 is higher than the top height of the mold cavity 6. When the filling amount of the material is too much, the excess material can be discharged into the first overflow cavity 22.

[0042] The second mold base 2 and / or the third mold base 3 are provided with exhaust channels, some of which are directly connected to the mold cavity 6, and the remaining exhaust channels are directly connected to the first overflow cavity 22. The exhaust channels allow air to flow but do not allow materials to pass through. The exhaust channels can exhaust the gas in the mold cavity 6 and the first overflow cavity 22, avoiding the problem of lack of material in the molded product caused by bubbles in the mold cavity 6.

[0043] Furthermore, if Figures 2 to 4 As shown, the second mold base 2 is provided with an inclined rod 23, which is inclined relative to the arrangement direction of the second mold base 2 and the third mold base 3. The second sub-mold base 32 is provided with a through hole, and the inclined rod 23 penetrates the first sub-mold base 31 and penetrates into the through hole. When the third mold base 3 approaches or moves away from the second mold base 2, the first sub-mold base 31 can slide relative to the second sub-mold base 32 under the action of the inclined rod 23. The driving method of the first sub-mold base 31 is simple and reliable.

[0044] After the product is formed, the first sub-mold base 31 can be driven to move so that the first sub-mold base 31 can be separated from the product. For example, after the product is formed, the third mold base 3 is moved away from the second mold base 2 so that the first sub-mold base 31 slides relative to the second sub-mold base 32, thereby separating the first sub-mold base 31 from the product.

[0045] Furthermore, a recess 321 is provided on one side of the second sub-mold base 32 away from the second mold base 2 . The recess 321 enables a worker to insert a tool into the gap between the recess 321 and the second mold base 2 , thereby facilitating the separation of the second mold base 2 and the third mold base 3 .

[0046] Example 2

[0047] The difference between this embodiment and the first embodiment is that the overflow of the material and the exhaust of the cavity 6 and other related structures are improved.

[0048] Specifically, since the product (heating core) is usually designed with a multi-fold structure, the cavity 6 used to prepare the product will have many narrow gaps. After the material enters the cavity 6, it may not be able to spontaneously flow into the narrow gaps.

[0049] In view of the above problems, the first sub-mold seat 31 of this embodiment is designed to have a first state and a second state. In the first state, the size of the cavity 6 is larger than the size of the preset cavity. Among them, the preset cavity can be understood as a cavity 6 that matches the product's outer dimensions. In the first state, the material is injected into the cavity 6 and quickly wets the cavity 6. After the material injection is completed, the first sub-mold seat 31 gradually reduces the size of the cavity 6 by moving, and the material in the cavity 6 will gradually diffuse into various narrow gaps in the cavity 6 due to the extrusion of the first sub-mold seat 31, thereby fully filling the gaps in the cavity 6. When the first sub-mold seat 31 moves to the preset position, the first sub-mold seat 31 is in the second state, at which time the size of the cavity 6 is just reduced to the size equal to the preset cavity, and the cavity 6 is fully filled with material, thereby obtaining a product that meets the size requirements. In addition, the excess material in the cavity 6 is discharged into the first overflow cavity 22 under the extrusion of the first sub-mold seat 31.

[0050] The bottom height of the first overflow cavity 22 is higher than or equal to the top height of the cavity 6. Thus, the material in the cavity 6 is squeezed by the first sub-mold base 31 and the excess material is discharged into the first overflow cavity 22 only after the cavity 6 is filled, thereby ensuring good product molding quality and reducing material waste.

[0051] Since the structure of the mold cavity 6 is complex and there are many gaps, the material may not be able to fill all the gaps of the mold cavity 6 by spontaneous flow, and pressure must be applied by the first sub-mold base 31 to allow the material to flow into narrow structures such as gaps or corners. However, when the first sub-mold base 31 applies pressure to the material, the material may begin to enter the first overflow cavity 22 before filling the mold cavity 6. If too much material enters the overflow cavity, it may result in the mold cavity 6 still not being completely filled when the first sub-mold base 31 moves to the preset position, resulting in poor molding effect. To solve this problem, the present embodiment provides the following solutions: For example, Figures 5 and 6 As shown, a slider 7 and an elastic member 8 can be provided in the first overflow chamber 22. The slider 7 is slidably fitted to the inner wall of the first overflow chamber 22, and the opposite ends of the elastic member 8 are respectively connected to the inner wall of the first overflow chamber 22 and the slider 7. When the material in the cavity 6 flows into the first overflow chamber 22, it will push the slider 7 to slide so that the elastic member 8 is compressed, and the restoring force of the elastic member 8 will form resistance to the entry of the material. This resistance will enable the material to preferentially fill the cavity 6 under the pressure of the first sub-mold seat 31, ensuring good product molding quality. In addition, the elasticity of the elastic member 8 enables the slider 7 to still slide under a certain pressure. When the cavity 6 is fully filled, if there is still excess material, the excess material can still be squeezed into the first overflow chamber 22.

[0052] For another example, a driving component may be configured to actively drive the slider 7 to move, so that when the first sub-mold base 31 moves to a preset position, the material entering the first overflow cavity 22 is pushed back into the cavity 6 until the cavity 6 is completely filled.

[0053] Specifically, the driving assembly includes a driving member and an elastic member 8. The elastic member 8 is disposed between the driving member and the slider 7 and is connected to the driving member and the slider 7 respectively. When the first sub-mold base 31 moves to the preset position, the driving member drives the slider 7 to move, so that the slider 7 can push the material in the first overflow cavity 22 back into the mold cavity 6, until the mold cavity 6 is completely filled, the material in the first overflow cavity 22 can no longer enter the mold cavity 6, and the driving member stops driving the slider 7.

[0054] The elastic member 8 can play a buffering and protective role to prevent the driving member from being damaged by the rigid contact between the slider 7 and the driving member. In this embodiment, the driving assembly and the slider 7 further pressurize the material to ensure that the cavity 6 is fully filled and the gas in the cavity 6 and the first overflow cavity 22 is fully discharged.

[0055] Furthermore, the driving assembly further includes a pressure sensor, which is disposed between the driving member and the elastic member 8. By providing the pressure sensor, the pressure applied by the driving member to the slider 7 can be flexibly controlled, so that the pressure applied by the driving member to the slider 7 can not only fully fill the cavity 6, but also prevent the elastic member 8 from being overly compressed and causing loss due to excessive pressure.

[0056] In the above, the elastic member 8 may be a spring. The driving member may be a cylinder or other components. When the driving member is a cylinder, if the piston of the cylinder is difficult to penetrate into the first overflow chamber 22 due to the small width of the first overflow chamber 22, the driving member may be provided to further include a connecting member. One end of the connecting member penetrates into the first overflow chamber 22 and is connected to the elastic member 8, and the other end is located outside the second mold base 2 and is connected to the piston of the cylinder. The pressure sensor may also be provided between the connecting member and the piston of the cylinder.

[0057] In addition, if Figure 6 As shown, the third mold base 3 is further provided with a second overflow cavity 33, which is connected to the mold cavity 6, and the bottom height of the second overflow cavity 33 is lower than the bottom height of the mold cavity 6. After entering the mold cavity 6, the material can further flow into the second overflow cavity 33. Thus, the material brings the dust and other impurity particles in the mold cavity 6 into the second overflow cavity 33, which has a certain self-cleaning effect.

[0058] Furthermore, the second die base 2 and / or the third die base 3 are provided with exhaust channels, part of which is directly connected to the first overflow cavity 22, and the remaining part of which is directly connected to the second overflow cavity 33. When the material in the cavity 6 is squeezed, the material in the cavity 6 can be discharged into the first overflow cavity 22 or the second overflow cavity 33, and then discharged through the exhaust channel. The exhaust channel is not directly connected to the cavity 6, so as to avoid the existence of the exhaust channel affecting the molding quality of the product.

[0059] In addition, by providing a second overflow chamber 33 and an exhaust channel connected to the second overflow chamber 33, the air at the bottom of the mold cavity 6 only needs to be subjected to a small pressure to be discharged into the second overflow chamber 33 and finally discharged to the outside, without the need to apply a large pressure to the material so that the air at the bottom of the mold cavity 6 can enter the first overflow chamber 22 upward and be discharged.

Claims

1. A distributed liquid injection mold for the production of heating cores of new energy vehicles, characterized in that: include: A first mold base (1), a second mold base (2), and a third mold base (3) are arranged in sequence; The first mold base (1) has a liquid injection hole (11) and a plurality of first flow channels (12) connected to the liquid injection hole (11); The second mold base (2) and the third mold base (3) are each provided with a molding groove on one side facing the other, the two molding grooves together forming a mold cavity (6), the second mold base (2) is provided with a second flow channel (21), and any of the first flow channels (12) is connected to the mold cavity (6) through a plurality of the second flow channels (21); The second mold base (2) is provided with a first overflow cavity (22) which is in communication with the mold cavity (6); The third mold base (3) comprises a first sub-mold base (31) and a second sub-mold base (32); the first sub-mold base (31) and the second sub-mold base (32) together constitute the corresponding molding groove; the first sub-mold base (31) is slidably arranged on the second sub-mold base (32).

2. The distributed liquid injection mold for the production of heating cores for new energy vehicles according to claim 1 is characterized in that: The first sub-mold seat (31) has a first state and a second state; In the first state, the size of the cavity (6) is larger than the size of the preset cavity; In the second state, the size of the cavity (6) is equal to the size of the preset cavity; The material is injected into the mold cavity (6) in the first state.

3. The distributed liquid injection mold for the production of heating cores for new energy vehicles according to claim 1, characterized in that: The second mold base (2) is provided with an inclined rod (23), the inclined rod (23) being arranged at an angle relative to the arrangement direction of the second mold base (2) and the third mold base (3), the second sub-mold base (32) being provided with a through hole, the inclined rod (23) passing through the first sub-mold base (31) and penetrating into the through hole, and when the third mold base (3) approaches or moves away from the second mold base (2), the first sub-mold base (31) slides relative to the second sub-mold base (32).

4. The distributed liquid injection mold for the production of heating cores for new energy vehicles according to claim 1, characterized in that: The third mold base (3) is also provided with a second overflow cavity (33), the second overflow cavity (33) is connected to the mold cavity (6), and the bottom height of the second overflow cavity (33) is lower than the bottom height of the mold cavity (6).

5. The distributed liquid injection mold for the production of heating cores for new energy vehicles according to claim 1, characterized in that: The bottom height of the first overflow cavity (22) is higher than or equal to the top height of the cavity (6).

6. The distributed liquid injection mold for the production of heating cores for new energy vehicles according to claim 2, characterized in that: The distributed liquid injection mold for producing the heating core of a new energy vehicle further comprises a slider (7) and an elastic member (8); The slider (7) and the elastic member (8) are both arranged in the first overflow chamber (22); the slider (7) is slidably fitted to the inner wall of the first overflow chamber (22); and opposite ends of the elastic member (8) are respectively connected to the inner wall of the first overflow chamber (22) and the slider (7).

7. The distributed liquid injection mold for the production of heating cores for new energy vehicles according to claim 2, characterized in that: The distributed liquid injection mold for producing the heating core of a new energy vehicle further comprises a slider (7) and a drive assembly; The slider (7) is disposed in the first overflow chamber (22) and is slidably fitted to the inner wall of the first overflow chamber (22); the drive assembly is connected to the slider (7) and is used to drive the slider (7) to slide.

8. The distributed liquid injection mold for the production of heating cores for new energy vehicles according to claim 7, characterized in that: The driving assembly comprises a driving member, an elastic member (8) and a pressure sensor, wherein the pressure sensor is arranged between the driving member and the elastic member (8) and is respectively connected to the two members, and an end of the elastic member (8) away from the pressure sensor is connected to the slider (7).

9. The distributed liquid injection mold for the production of heating cores for new energy vehicles according to claim 4, characterized in that: The second mold base (2) and / or the third mold base (3) is provided with an exhaust channel, part of the exhaust channel is directly connected to the first overflow chamber (22), and the remaining part of the exhaust channel is directly connected to the second overflow chamber (33).

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