Forming mold for injection molding of radiator water chamber of new energy automobile

Abstract

The invention belongs to the technical field of injection molding equipment, and particularly relates to a new energy automobile radiator water chamber injection molding forming mold which comprises a fixed mold assembly and a movable mold assembly movably arranged over the fixed mold assembly, and the fixed mold assembly comprises a base, a lower forming mold and a cooling unit; the cooling unit comprises a plurality of partition plates and cooling pipelines arranged between the two partition plates, each cooling pipeline communicates with a water pump, the surfaces of any two adjacent partition plates, the inner wall of the lower forming die and the upper surface of the fixed die assembly jointly form a first cooling cavity, and the cooling unit further comprises cooling nozzles arranged in the first cooling cavities. And the movable mold assembly comprises a movable seat and an upper forming mold, the movable seat is arranged right above the base in a sliding manner and moves vertically, and the upper forming mold is embedded in the surface of the base. And the forming quality of a final product still needs to be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding equipment, and specifically relates to a molding mold for injection molding a water chamber of a radiator of a new energy vehicle. Background Art

[0002] The radiator water chamber of the car (also called the water tank, the shape of the radiator water chamber can be combined with the drawings in the specification Figure 1 The radiator water chamber is an important part of the automobile cooling system. Its main function is to absorb the heat generated by the engine through the circulation of the coolant (usually a mixture of antifreeze and water) inside it. When the coolant flows in the radiator, the heat is transferred to the outside air through the metal wall and fins of the radiator, helping the engine to maintain a suitable operating temperature range, which helps to improve engine efficiency, reduce wear, and extend engine life. Therefore, whether it is a traditional car or a new energy car, the radiator water chamber is an important part. The radiator water chamber is usually made of plastic material through a special injection mold. The radiator made of this material not only has good heat dissipation, but also has low cost and is easy to process.

[0003] For example, a Chinese patent discloses an automobile radiator water chamber injection mold (patent announcement number: CN216832035U), which includes a lower mold, an upper mold, a core mold and a side mold slider. The side mold slider is slidably connected to the lower mold, and then the side mold slider is pushed to the working position by the inclined guide pin when the mold is closed. When the mold is opened, the inclined guide pin can push the side mold slider in the opposite direction to automatically open the mold. The core mold and the side mold slider can be replaced to adapt to water chamber products of different specifications and requirements; for another example, a Chinese patent discloses a universal radiator water chamber processing mold (patent announcement number: CN208827022U). The universal radiator water chamber processing mold can not only eject the product after it is cooled and formed by sliding the substrate inside the second mold, but also squeeze out the air inside the mold before injection molding, ensuring that no bubbles are generated during injection molding, and injecting cold water into the mold during cooling to accelerate the cooling of the product.

[0004] Of course, the above content simply lists two of the relevant patents. In the actual production and processing process, the process steps of injection molding can be roughly summarized as: heating the raw materials to a molten state - injecting them into the mold cavity - cooling - shaping - demolding and trimming. The two steps of injecting into the mold cavity and cooling will directly affect the quality of the final product. Since temperature is a key factor in injection molding technology, the mold temperature, barrel temperature and nozzle temperature all need to be strictly controlled to ensure the molding quality of the product. However, due to the long strip shape of the radiator water chamber, when using traditional cooling water to cool the mold, the entire mold cannot be cooled synchronously, so that the quality of the final molded product needs to be improved. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a molding mold for injection molding of a new energy vehicle radiator water chamber, so as to solve the problem that the current radiator water chamber injection mold cannot synchronously dissipate heat from various internal parts, resulting in the molding quality of the final product needs to be improved.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A molding die for injection molding of a radiator water chamber of a new energy vehicle, comprising a fixed mold assembly arranged on the ground and a movable mold assembly movably arranged just above the fixed mold assembly, characterized in that: the fixed mold assembly comprises a base, a lower molding die protruding from the upper surface of the base, and a cooling unit arranged inside the lower molding die, a storage chamber for placing the cooling unit is provided inside the lower molding die, the cooling unit comprises a plurality of partitions arranged in an array along the length direction of the lower molding die and a cooling pipeline arranged between any two adjacent partitions, each of the partitions and the cooling pipeline are vertically arranged, and the outer surface of each cooling pipeline contacts and transfers heat with the inner wall of the adjacent lower molding die, each of the cooling pipelines is connected to a water pump for supplying high-pressure water flow, wherein any two adjacent surfaces of the partitions, the inner wall of the lower molding die and the upper surface of the fixed mold assembly together form a first cooling chamber, the cooling unit also comprises a cooling nozzle arranged in each first cooling chamber, and each of the cooling nozzles is connected to an air pump for supplying cooling gas;

[0008] The movable mold assembly includes a movable seat that is slidably arranged just above the base and moves vertically, and an upper molding die that is embedded in the surface of the base. The outer surface of the upper molding die is spaced apart from the inner wall of the movable seat, and the outer surface of the upper molding die is arrayed with partitions spaced apart along its length direction. Any two adjacent partitions, the outer surface of the upper molding die and the inner wall of the movable seat together form a second cooling chamber, and each of the cooling chambers is connected to a water pump for supplying coolant.

[0009] Furthermore, a horizontally arranged connecting plate is fixed to the bottom of the lower forming mold, and the connecting plate is embedded in the upper surface of the base. Any two adjacent partitions, the upper surface of the base and the inner wall of the lower forming mold together constitute the first cooling chamber. A plurality of through holes corresponding to the cooling nozzles are opened on the surface of the connecting plate, and each of the cooling nozzles is arranged in the corresponding through hole. The cooling nozzle is movably connected to the connecting plate and swings in a vertical plane. A driving member is provided on the lower surface of the connecting plate for driving each cooling nozzle to swing synchronously.

[0010] Furthermore, each of the first cooling chambers is provided with a plurality of vertical first cooling fins, and each of the first cooling fins is in contact with the corresponding inner wall of the lower molding mold and the cooling pipeline for heat exchange, and each of the second cooling chambers is provided with a plurality of second cooling fins, any two adjacent second cooling fins are spaced apart and arranged along the flow direction of the coolant, and each of the second cooling fins is in contact with the surface of the upper molding mold for heat exchange.

[0011] Furthermore, the size of each partition is matched with the interior of the lower molding die, and the size of each cooling pipeline and the first heat dissipation fin is matched with the corresponding first cooling chamber.

[0012] Furthermore, the cooling pipeline, the first heat sink fins, and the second heat sink fins are all made of materials with high thermal conductivity, and each of the partitions is made of materials with low thermal conductivity.

[0013] Furthermore, it also includes a temperature control unit for adjusting the temperature of each first cooling chamber and the second cooling chamber, wherein:

[0014] The temperature control unit includes a first temperature sensor disposed in each first cooling chamber and a second temperature sensor disposed in each second cooling chamber.

[0015] A first connecting pipe is connected between each of the cooling pipelines and the output end of the water pump supplying high-pressure water flow, a first flow control valve is provided on the passage of each of the first connecting pipes, and a first pipe temperature controller for regulating the temperature of the liquid inside the first connecting pipe is also provided on the passage of each of the first connecting pipes;

[0016] A second connecting pipe is connected between each of the second cooling chambers and the output end of the water pump supplying the coolant, a second flow control valve is provided on the passage of each of the second connecting pipes, and a second pipe temperature controller for regulating the temperature of the liquid inside the first connecting pipe is also provided on the passage of each of the first connecting pipes;

[0017] Each of the cooling nozzles is connected to the output end of the air pump via a third connecting pipe, and a third flow control valve is provided on the passage of each of the third connecting pipes;

[0018] The water pump, the air pump, the driving member, the first temperature sensor, the second temperature sensor, the first flow control valve, the second flow control valve, the first pipeline temperature controller, the second pipeline temperature controller and the third flow control valve are electrically connected to a controller;

[0019] When the upper molding die and the lower molding die are rapidly cooled as a whole, the controller simultaneously controls the two water pumps to start and dissipate heat to the first cooling chamber and the second cooling chamber through the first connecting pipe and the second connecting pipe, and controls the first flow control valve and the second flow control valve in real time according to the temperature value fed back by each first temperature sensor and the temperature value fed back by the second temperature sensor, so as to achieve a synchronous drop in the temperature in each first cooling chamber and the second cooling chamber.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention divides the upper molding die and the lower molding die into a plurality of cooling chambers, and by cooling each cooling chamber individually, the heat dissipation efficiency of each cooling chamber can be controlled according to the shape of the radiator water chamber, so that when the radiator water chamber is cooled, the temperature drop rate of each area on its surface is consistent, which effectively solves the problem of inconsistent temperature drop of each area on its outer surface during the cooling and molding process of the radiator water chamber, and improves the final molding quality of the radiator water chamber;

[0022] 2. The present invention can quickly and synchronously cool the contact area of ​​each radiator water chamber by arranging multiple cooling nozzles and multiple cooling pipelines in the lower molding die. When the temperature drops to a threshold, the passage of the cooling nozzle is closed, and then the temperature of the coolant flowing into each cooling pipeline is regulated by the pipeline temperature controller, thereby improving the control accuracy of the temperature of each area of ​​the lower molding die and the upper molding die, thereby improving the molding quality of the radiator water chamber.

[0023] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0025] Figure 1 This is a schematic diagram of the water chamber structure of the radiator of the present invention;

[0026] Figure 2 Schematic diagram of the molding die structure for the radiator water chamber injection molding of the present invention Figure 1 ;

[0027] Figure 3 Schematic diagram of the molding die structure for the radiator water chamber injection molding of the present invention Figure 2 ;

[0028] Figure 4It is a schematic diagram of an explosion of a molding die for injection molding of a radiator water chamber of the present invention;

[0029] Figure 5 Based Figure 4 The enlarged schematic diagram at A in the middle;

[0030] Figure 6 This is a schematic diagram of the heating shell structure of the present invention;

[0031] Figure 7 A vertical cross-sectional view of the upper forming die and the lower forming die of the present invention;

[0032] Figure 8 for Figure 7 Enlarged schematic diagram of point B in the middle.

[0033] The following are marked in the accompanying drawings:

[0034] 1 fixed mold assembly, 101 base, 102 lower molding mold, 2 movable mold assembly, 201 movable seat, 202 upper molding mold, 3 cooling pipeline, 4 first cooling chamber, 5 cooling nozzle, 6 second cooling chamber, 7 connecting plate, 8 heating shell, 9 first cooling fin, 10 second cooling fin, 11 radiator water chamber, 12 rotating rod. DETAILED DESCRIPTION

[0035] like Figures 1 to 8 As shown,

[0036] A molding die for injection molding of a radiator water chamber of a new energy vehicle, comprising a fixed mold assembly 1 arranged on the ground and a movable mold assembly 2 movably arranged directly above the fixed mold assembly 1, the fixed mold assembly 1 comprising a base 101, a lower molding die 102 protruding from the upper surface of the base 101, and a cooling unit arranged inside the lower molding die 102, the interior of the lower molding die 102 is provided with a storage chamber for placing the cooling unit, wherein the storage chamber is also provided with a heating shell 8 for heating the lower molding die 102 (of course, the outer surface of the upper molding die 202 also has one, but it is not shown in the figure), the heating shell 8 is in close contact with the inner wall of the lower molding die 102 and can transfer heat to each other, the cooling unit comprises a plurality of partitions arranged in an array along the length direction of the lower molding die 102 and a cooling pipeline 3 arranged between any two adjacent partitions, each of the partitions The cooling pipes 3 are all arranged vertically, and the outer surface of each cooling pipe 3 contacts and transfers heat with the inner wall of the adjacent heating shell 8, and each of the cooling pipes 3 is connected to a water pump for supplying high-pressure water flow (the input end of the water pump can be connected to coolant or ordinary water for cooling), and the water pump is arranged outside the molding mold, wherein any two adjacent surfaces of the partitions, the inner wall of the heating shell 8 and the upper surface of the fixed mold assembly 1 together form a first cooling chamber 4, and the liquid in each cooling pipe 3 circulates in the corresponding first cooling chamber 4 and flows out after exchanging heat, and the cooling unit also includes a cooling nozzle 5 arranged in each first cooling chamber 4, and the output end of the cooling nozzle 5 is vertically upward and corresponds to the inner wall of the heating shell 8, and each of the cooling nozzles 5 is connected to an air pump for supplying cooling gas, and the input end of the air pump is connected to the outside air;

[0037] The movable mold assembly 2 includes a movable seat 201 which is slidably arranged just above the base 101 and moves vertically, and an upper molding die 202 which is embedded in the surface of the base 101. The outer surface of the upper molding die 202 is spaced apart from the inner wall of the movable seat 201 (the lower surface of the movable seat 201 is also provided with a cavity for placing the upper molding die 202). When the upper molding die 202 cooperates with the lower molding die 102, they together form a molding chamber for injection molding of the radiator water chamber 11. The outer surface of the upper molding die 202 is arranged with partitions in an array along its length direction. Any two adjacent partitions, the outer surface of the upper molding die 202 and the inner wall of the movable seat 201 together form a second cooling chamber 6. Each of the cooling chambers is connected to a water pump for supplying coolant, and this water pump is also arranged outside the molding mold. Of course, each second cooling chamber 6 is also connected to an outlet for the coolant to flow out, and the outlet is connected to the outside through a pipeline (the flow direction of the coolant is parallel to the partition).

[0038] As shown in the figure, when making the radiator water chamber 11, the upper molding die 202 and the lower molding die 102 are first heated to the target temperature, and then the movable mold assembly 2 is controlled to move downward until it abuts against the upper surface of the base 101, and then the raw material in a molten state after heating is injected into the molding chamber composed of the upper molding die 202 and the lower molding die 102. After the raw material is injected, it needs to be cooled and formed. At this time, the two water pumps are started to synchronously cool each first cooling chamber 4 and each second cooling chamber 6 respectively, wherein the water pump transports the coolant to each second cooling chamber 6 and exchanges heat with the surface of the upper molding die 202, and then flows out through the outlet, which can effectively and evenly and quickly cool the upper molding die 202; and when the lower molding die 102 is cooled, due to the limited shapes of the heating shell 8 and the lower molding die 102, its heat is easily accumulated inside and is not easy to be quickly discharged (compared with directly cooling the upper molding die 202 by coolant). Therefore, during the cooling process, the air pump and the water pump are started at the same time The air pump pressurizes the ambient air at room temperature and blows it out through the cooling nozzle 5, introduces the ambient cold air into each first cooling chamber 4 and performs rapid heat exchange, thereby accelerating the heat dissipation speed of the lower molding die 102. At the same time, the water pump introduces the ambient coolant into each cooling pipe 3. The coolant exchanges heat with the lower molding die 102 while flowing through the cooling pipe 3, and cooperates with the cooling nozzle 5 to effectively and quickly take away the heat accumulated in the lower molding die 102, effectively improve the heat dissipation efficiency, and make its cooling speed approach the same level as the cooling speed of the upper molding die 202; wherein, by dividing the surface of one side of the upper molding die 202 and the lower molding die 102 into a plurality of uniform heat dissipation areas, the heat dissipation efficiency of each heat dissipation area can be adjusted by the shape of the radiator water chamber 11, and then the temperature change of each heat dissipation area can be controlled, so that when the radiator water chamber 11 is cooled and formed, the cooling rate of each heat dissipation area is the same, and the cooling change of each area can be more evenly controlled, thereby improving the final molding quality of the radiator water chamber 11.

[0039] In this embodiment, a horizontally arranged connecting plate 7 is welded and fixed to the bottom of the lower forming mold 102, and the connecting plate 7 is embedded in the upper surface of the base 101. Any two adjacent partitions, the upper surface of the base 101 and the inner wall of the heating shell 8 together constitute the first cooling chamber 4. Each cooling passage passes through the connecting plate 7 and contacts the corresponding first cooling chamber 4. The surface of the connecting plate 7 is provided with a plurality of through holes corresponding to the cooling nozzles 5. Each of the cooling nozzles 5 is arranged in the corresponding through hole, and the cooling nozzles 5 are movably connected to the connecting plate 7 and swing in a vertical plane. The lower surface of the connecting plate 7 is provided with a driving member for driving each cooling nozzle 5 to swing synchronously, wherein the driving member is composed of a driving motor and a reciprocating swinging assembly connected to the output end power of the driving motor. A rotating rod 12 is connected between any two adjacent cooling nozzles 5, and the rotating rod 12 is rotatably arranged in the connecting plate 7. The rotating rod 12 is connected to the output end power of the reciprocating swinging assembly (wherein the reciprocating swinging assembly is already a prior art, and its working principle is not described in detail).

[0040] Combination Figure 7 , Figure 8 As shown, when it is necessary to quickly cool down each first cooling chamber 4, the air pump is started at the same time and the outside air is blown into the corresponding first cooling chamber 4 through the cooling nozzle 5. The outside gas exchanges heat with the heat in the first cooling chamber 4 and then flows out through the through hole. At the same time, the output end of the driving member drives each rotating rod 12 to rotate back and forth through the reciprocating swinging assembly, and indirectly drives the cooling nozzle 5 to swing back and forth in the horizontal plane, which can increase the movement range of the output end of the cooling nozzle 5, and then increase the area of ​​direct contact between the blown air and the inner wall of the heating shell 8, so as to effectively improve the heat dissipation efficiency and cool down each first cooling chamber 4 more evenly.

[0041] In this embodiment, each of the first cooling chambers 4 is provided with a plurality of vertical first cooling fins 9, and each of the first cooling fins 9 contacts and exchanges heat with the corresponding inner wall of the lower molding die 102 and the cooling pipe 3, and the output end of each cooling nozzle 5 faces the plurality of first cooling fins 9 in the corresponding first cooling chamber 4, and each of the second cooling chambers 6 is provided with a plurality of second cooling fins 10, and any two adjacent second cooling fins 10 are spaced apart and arranged along the flow direction of the coolant, and each second cooling fin 10 contacts and exchanges heat with the surface of the upper molding die 202.

[0042] As shown in the figure, the setting of the first heat dissipation fins 9 can increase the contact area between the surface of the lower molding die 102 and the air in the first cooling chamber 4, so that the high-speed airflow output by the cooling nozzle 5 can quickly take away the heat in the first cooling chamber 4, thereby achieving the purpose of rapid cooling, and the cooling nozzle 5 is driven by the driving member to swing back and forth in the vertical plane, which can effectively increase the contact area between the airflow and the first heat dissipation fins 9, reduce the dead angle when the airflow contacts, and effectively improve the cooling efficiency; the setting of the second heat dissipation fins 10 can also increase the contact area between the surface of the upper molding die 202 and the coolant flowing through the second cooling chamber 6, thereby effectively improving the heat dissipation efficiency of the upper molding die 202. Of course, the setting of the heat dissipation fins can also timely export the heat accumulated in the molding die and exchange heat with the medium, effectively preventing the accumulation of heat inside the molding die and improving the final molding quality of the radiator water chamber 11.

[0043] In this embodiment, the size of each partition is matched with the interior of the lower molding die 102, and the size of each cooling pipe 3 and the first heat sink fin 9 is matched with the corresponding first cooling chamber 4; wherein the cooling pipe 3, the first heat sink fin 9, and the second heat sink fin 10 are all made of metal materials with high thermal conductivity (for example, copper, aluminum and other metal materials), and each partition is made of materials with low thermal conductivity (for example, iron, chromium and other metal materials).

[0044] As shown in the figure, since the size of the lower molding die 102 needs to match the shape of the radiator water chamber 11 and is in an irregular long strip shape, the size of each first cooling chamber 4 is quite different. Using a suitable cooling pipeline 3 and a first cooling fin 9 for each first cooling chamber 4 can ensure that the heat dissipation efficiency of each first cooling chamber 4 remains consistent, reduce the temperature error value of each area when the lower molding die 102 is cooled, and thereby improve the molding quality of the radiator water chamber 11.

[0045] In this embodiment, a temperature control unit is also included for adjusting the temperature of each first cooling chamber 4 and second cooling chamber 6, wherein:

[0046] The temperature control unit includes a first temperature sensor disposed in each first cooling chamber 4 and a second temperature sensor disposed in each second cooling chamber 6.

[0047] A first connecting pipe is connected between each of the cooling pipes 3 and the output end of the water pump supplying the high-pressure water flow, a first flow control valve is provided on the passage of each of the first connecting pipes, and a first pipe temperature controller for regulating the temperature of the liquid inside the first connecting pipe is also provided on the passage of each of the first connecting pipes;

[0048] A second connecting pipe is connected between each of the second cooling chambers 6 and the output end of the water pump supplying the coolant, a second flow control valve is provided on the passage of each of the second connecting pipes, and a second pipe temperature controller for regulating the temperature of the liquid inside the pipe is also provided on the passage of each of the first connecting pipes;

[0049] Each of the cooling nozzles 5 is connected to the output end of the air pump via a third connecting pipe, and a third flow control valve is provided on the passage of each of the third connecting pipes;

[0050] The water pump, the air pump, the driving member, the first temperature sensor, the second temperature sensor, the first flow control valve, the second flow control valve, the first pipeline temperature controller (the pipeline temperature controller can adjust the temperature of the liquid flowing in the pipeline, which is a prior art and will not be described here), the second pipeline temperature controller and the third flow control valve are electrically connected to a controller;

[0051] When the upper molding die 202 and the lower molding die 102 are both subjected to integrated rapid cooling, the controller simultaneously controls the two water pumps to start and dissipate heat to the first cooling chamber 4 and the second cooling chamber 6 through the first connecting pipe and the second connecting pipe, and controls the first flow control valve and the second flow control valve in real time according to the temperature value fed back by each first temperature sensor and the temperature value fed back by the second temperature sensor, so as to achieve a synchronous decrease in the temperature in each first cooling chamber 4 and the second cooling chamber 6; when the lower molding die 102 is subjected to cooling, the controller simultaneously controls the air pump and the driving member to start, so that each cooling nozzle 5 swings and simultaneously cools the corresponding The first cooling chamber 4 is cooled by air until the temperature of each first cooling chamber 4 drops to a threshold value, and then the controller turns off the air pump and only uses the cooling pipeline 3 for cooling, which can speed up the heat dissipation efficiency of the lower molding die 102; the lower molding die 102 is cooled quickly by air cooling and coolant, and then only the cooling pipeline 3 is used to cool each first cooling chamber 4, and the temperature of each coolant flowing into the first cooling chamber 4 can be adjusted by the pipeline temperature controller, thereby realizing precise control of the temperature of each first cooling chamber 4, which can keep it within the specified temperature range, and effectively improving the application range of the molding die;

[0052] Among them, since the shapes of each first cooling chamber 4 are quite different, during the overall cooling process of the lower molding die 102, it is necessary to control the corresponding first flow control valve and the third flow control valve in real time through the data fed back by each first temperature sensor. For example, when cooling one of the first cooling chambers 4 with a smaller volume, the flow rate of the coolant in the cooling pipe 3 in the first cooling chamber 4 is relatively slow, and the flow rate of the gas ejected from the cooling nozzle 5 in the first cooling chamber 4 is also relatively slow; on the contrary, when cooling the first cooling chamber 4 with a larger volume, the flow rate of the coolant in the cooling pipe 3 in the first cooling chamber 4 is relatively fast, and the flow rate of the gas ejected from the cooling nozzle 5 is also relatively fast, so that the heat dissipation rate of the first cooling chambers 4 with different volumes remains consistent; and since the temperature of the upper molding die 202 is not easy to accumulate inside it, only the coolant is used to flow through each second cooling chamber 6 to dissipate the heat, which can meet the heat dissipation requirements of the upper molding die 202. Of course, by controlling the size of the second flow control valve, the effect of synchronously cooling each second cooling chamber 6 with different volumes can also be achieved.

[0053] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A molding die for injection molding of a water chamber of a radiator of a new energy vehicle, comprising a fixed mold assembly (1) arranged on the ground and a movable mold assembly (2) movably arranged just above the fixed mold assembly (1), characterized in that: The fixed mold assembly (1) comprises a base (101), a lower molding die (102) protruding from the upper surface of the base (101), and a cooling unit arranged inside the lower molding die (102); a storage chamber for placing the cooling unit is provided inside the lower molding die (102); the cooling unit comprises a plurality of partitions arranged in an array along the length direction of the lower molding die (102) and a cooling pipeline (3) arranged between any two adjacent partitions; each of the partitions and the cooling pipeline (3) is arranged vertically, and each cooling pipeline (3) is provided with a plurality of partitions arranged in an array along the length direction of the lower molding die (102); The outer surfaces of the pipelines (3) are in contact with the inner walls of the adjacent lower molding dies (102) and transfer heat thereto; each of the cooling pipelines (3) is connected to a water pump for supplying high-pressure water flow; any two adjacent surfaces of the partitions, the inner wall of the lower molding dies (102) and the upper surface of the fixed mold assembly (1) together form a first cooling chamber (4); the cooling unit further comprises a cooling nozzle (5) arranged in each first cooling chamber (4); each of the cooling nozzles (5) is connected to an air pump for supplying cooling gas; The movable mold assembly (2) comprises a movable seat (201) which is slidably arranged directly above the base (101) and moves vertically, and an upper molding die (202) which is embedded in the surface of the base (101), the outer surface of the upper molding die (202) and the inner wall of the movable seat (201) are arranged at intervals, and the outer surface of the upper molding die (202) is provided with partitions in an array along its length direction, and any two adjacent partitions, the outer surface of the upper molding die (202) and the inner wall of the movable seat (201) together form a second cooling chamber (6), and each of the cooling chambers is connected to a water pump for supplying cooling liquid.

2. The injection molding mold for the water chamber of a new energy vehicle radiator according to claim 1 is characterized in that: A horizontally arranged connecting plate (7) is fixed at the bottom of the lower forming mold (102), and the connecting plate (7) is embedded in the upper surface of the base (101). Any two adjacent partitions, the upper surface of the base (101) and the inner wall of the lower forming mold (102) together constitute the first cooling chamber (4). A plurality of through holes corresponding to the cooling nozzles (5) are provided on the surface of the connecting plate (7), and each of the cooling nozzles (5) is arranged in a corresponding through hole. The cooling nozzles (5) are movably connected to the connecting plate (7) and swing in a vertical plane. A driving member for driving each cooling nozzle (5) to swing synchronously is provided on the lower surface of the connecting plate (7).

3. The injection molding mold for the water chamber of a new energy vehicle radiator according to claim 2 is characterized in that: Each of the first cooling chambers (4) is provided with a plurality of vertically arranged first heat dissipating fins (9), and each of the first heat dissipating fins (9) contacts and exchanges heat with the corresponding inner wall of the lower molding die (102) and the cooling pipeline (3), and each of the second cooling chambers (6) is provided with a plurality of second heat dissipating fins (10), and any two adjacent second heat dissipating fins (10) are spaced apart and arranged along the flow direction of the coolant, and each of the second heat dissipating fins (10) contacts and exchanges heat with the surface of the upper molding die (202).

4. The injection molding mold for the water chamber of a new energy vehicle radiator according to claim 3 is characterized in that: The size of each partition plate matches the interior of the lower molding die (102), and the size of each cooling pipeline (3) and first heat dissipation fin (9) matches the corresponding first cooling chamber (4).

5. The injection molding mold for the water chamber of a new energy vehicle radiator according to claim 4 is characterized in that: The cooling pipeline (3), the first heat dissipation fins (9), and the second heat dissipation fins (10) are all made of materials with high thermal conductivity, and each of the partitions is made of materials with low thermal conductivity.

6. The injection molding mold for the water chamber of a new energy vehicle radiator according to claim 5 is characterized in that: It also includes a temperature control unit for adjusting the temperature of each first cooling chamber (4) and second cooling chamber (6), wherein: The temperature control unit comprises a first temperature sensor arranged in each first cooling chamber (4), and a second temperature sensor arranged in each second cooling chamber (6). A first connecting pipe is connected between each of the cooling pipelines (3) and the output end of the water pump supplying the high-pressure water flow, a first flow control valve is provided on the passage of each of the first connecting pipes, and a first pipe temperature controller for regulating the temperature of the liquid inside the first connecting pipe is also provided on the passage of each of the first connecting pipes; A second connecting pipe is connected between each of the second cooling chambers (6) and the output end of the water pump for supplying cooling liquid, a second flow control valve is provided on the passage of each of the second connecting pipes, and a second pipe temperature controller for regulating the temperature of the liquid inside the first connecting pipe is also provided on the passage of each of the first connecting pipes; Each of the cooling nozzles (5) is connected to the output end of the air pump via a third connecting pipe, and a third flow control valve is provided on the passage of each of the third connecting pipes; The water pump, the air pump, the driving member, the first temperature sensor, the second temperature sensor, the first flow control valve, the second flow control valve, the first pipeline temperature controller, the second pipeline temperature controller and the third flow control valve are electrically connected to a controller; When the upper molding die (202) and the lower molding die (102) are subjected to integrated rapid cooling, the controller simultaneously controls the two water pumps to start and dissipate heat to the first cooling chamber (4) and the second cooling chamber (6) through the first connecting pipe and the second connecting pipe, and controls the first flow control valve and the second flow control valve in real time according to the temperature value fed back by each first temperature sensor and the temperature value fed back by the second temperature sensor, so as to achieve a synchronous drop in the temperature in each first cooling chamber (4) and the second cooling chamber (6).

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