Inverter die-casting cavity with heat dissipation structure

Abstract

The utility model discloses an inverter die-casting cavity with a heat dissipation structure, which comprises a base, a fixing frame is arranged on the rear side of the upper end of the base, a hydraulic cylinder is arranged at the upper end of the fixing frame, an upper die is arranged at the output end of the hydraulic cylinder, and the inverter die-casting cavity further comprises a lower die which is arranged at the upper end in the base. A cooling cavity is formed in the lower side of the interior of the lower mold, a plurality of first heat conduction plates distributed in a rectangular array are arranged at the upper end of the interior of the cooling cavity, the cold air cavity is formed in the interior of the upper mold, a plurality of second heat conduction plates distributed in a rectangular array are arranged at the lower end of the interior of the cold air cavity, and clamping grooves are further included; the upper mold is arranged on two sides of the upper end of the lower mold. According to the inverter die-casting cavity with the heat dissipation structure, the cooling time of an inverter die-casting piece is remarkably shortened through the rapid cooling function, the whole production period is shortened, and therefore the production efficiency and the productivity are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to inverter production technical field, concretely is a kind of inverter die casting cavity with heat dissipation structure. BACKGROUND

[0002] Automobile inverter is an important vehicle electronic equipment, it plays the key role of the 12V direct current of automobile battery conversion into household 220V alternating current, this conversion enables car owner to conveniently use various household appliances in vehicle, such as mobile phone, notebook computer, electric shaver, vehicle refrigerator etc., greatly improves the convenience and comfort of driving trip, the working principle of inverter is based on the synergies of inverter bridge, control logic and filter circuit, realizes the efficient conversion of electric energy, in the production and manufacturing process of inverter, die casting cavity is the space inside die casting mould, is the core part of die casting process, it determines the final shape and dimensional accuracy of inverter shell and other key parts, through accurate mould design and die casting process control, die casting cavity can ensure that inverter shell and other components have good heat dissipation, strict air tightness, and sufficient strength and stability, thereby protecting the electronic components inside inverter from the influence of external environment, ensure the long-term stable operation of inverter.

[0003] The existing patent with the announcement number CN212945365U discloses a cavity structure of die casting mould for communication filter, which comprises a base, a fixed mould is arranged at the upper end of the base, vertical columns are arranged through the two sides of the fixed mould, a horizontal frame is arranged at the top end of the vertical columns, a first hydraulic driver is arranged at the upper end of the horizontal frame, supporting rods are arranged on the two sides of the first hydraulic driver close to the horizontal frame, an extension rod is connected below the end shaft of the first hydraulic driver, a movable mould is arranged at the bottom end of the extension rod, a shunt pipe is arranged through the upper end of the movable mould, a feeding port is arranged at the top end of the shunt pipe, exhaust ports are arranged inside the two sides of the fixed mould, the exhaust ports are connected with exhaust pipes, electromagnetic valves are arranged on the annular surface of the exhaust pipes, an exhaust pump is connected with one end of the exhaust pipes, vibration mechanisms are arranged on the two outer sides of the fixed mould, a pushing groove is arranged inside the fixed mould, a first pushing mould plate is arranged inside the pushing groove, a thimble is arranged through the base at the bottom end of the first pushing mould plate, and the thimble is connected with the end shaft of a second hydraulic driver.

[0004] Although the above-mentioned scheme can achieve the convenience of taking out the die casting cavity structure, the heat dissipation effect of the cavity structure is insufficient, and if the heat dissipation effect of the die casting cavity is poor during the die casting production of the inverter, the temperature of the mould will rise sharply during the die casting process, which not only accelerates the wear of the mould and shortens its service life, but also may affect the flowability of the die casting metal due to the high temperature, thereby affecting the dimensional accuracy and surface quality of the inverter shell, therefore, it does not meet the existing requirements, and for this, we propose an inverter die casting cavity with heat dissipation structure. Practical new content

[0005] The utility model discloses a kind of inverter die casting cavities with heat dissipation structure, to solve the problem that the size precision and surface quality of inverter shell are influenced by the insufficient heat dissipation effect of inverter die casting cavity proposed in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of inverter die casting cavities with heat dissipation structure, including base, the rear side of the upper end of the base is provided with fixing frame, the upper end of the fixing frame is provided with hydraulic cylinder, the output end of the hydraulic cylinder is provided with upper die;

[0007] Still including lower die, it is set in the upper end inside the base, the lower side of the inside of the lower die is opened with cooling cavity, the upper end inside the cooling cavity is provided with a plurality of first heat-conducting plates distributed in rectangular array;

[0008] Still including cold gas cavity, it is opened in the inside of the upper die, the lower end inside the cold gas cavity is provided with a plurality of second heat-conducting plates distributed in rectangular array;

[0009] Still including clamping groove, it is opened in the both sides of the upper end of the lower die, the both sides of the lower end inside the cold gas cavity are provided with connecting pipe, and one end of connecting pipe is extended to the outside of cold gas cavity.

[0010] Preferably, the lower side inside the cooling cavity is provided with serpentine heat exchange pipe, and the serpentine heat exchange pipe is connected with one of the clamping grooves through air inlet pipe.

[0011] Preferably, one side of the upper end inside the base is provided with fan, and the fan is connected with the serpentine heat exchange pipe and another of the clamping grooves through air outlet pipe.

[0012] Preferably, the outside of the lower end of the upper die is adhesively fixed with two rectangular blocks, the outside of the upper end of the lower die is opened with two rectangular grooves, and the rectangular grooves are matched with the rectangular blocks.

[0013] Preferably, the outer wall of one end of the connecting pipe located in the outside of cold gas cavity is adhesively fixed with rubber sealing ring, and the rubber sealing rings are matched with the clamping grooves.

[0014] Preferably, the lower end of the lower die is installed with refrigeration mechanism.

[0015] Preferably, one side of the upper end of the upper die is provided with feeding port.

[0016] Compared with prior art, the utility model has the beneficial effects that:

[0017] 1. The utility model discloses a cooling cavity is set up in the upside of the lower mould, and the lower die casting cavity is formed after the upper die moves down and the lower die is accumulated, and the heat in the lower die casting cavity can be quickly guided to the cooling cavity through the first heat conduction plate after die casting, and the cooling cavity has cooling liquid, thereby the quick cooling of the lower die casting cavity can be realized, and the starting of the refrigeration mechanism can guarantee the refrigeration effect of the cooling liquid, the quick cooling function significantly shortens the cooling time of the inverter die casting, makes the whole production cycle shorten, thereby the production efficiency and the production capacity are improved.

[0018] 2. The utility model discloses a cooling cavity is set up in the upside of the lower mould, and the lower die casting cavity is formed after the upper die moves down and the lower die is accumulated, and the heat in the lower die casting cavity can be quickly guided to the cooling cavity through the first heat conduction plate after die casting, and the cooling cavity has cooling liquid, thereby the quick cooling of the lower die casting cavity can be realized, and the starting of the refrigeration mechanism can guarantee the refrigeration effect of the cooling liquid, the quick cooling function significantly shortens the cooling time of the inverter die casting, makes the whole production cycle shorten, thereby the production efficiency and the production capacity are improved.

[0019] 3. The utility model discloses two rectangular blocks are set up on the outside of the lower end of the upper die, and the outside of the upper end of the lower die is provided with a rectangular groove, when the upper die and the lower die butt joint, the rectangular block will be synchronous and be clamped into the inside of the rectangular groove, and the accurate cooperation of the rectangular block and the rectangular groove ensures the position precision of the upper die and the lower die when butt joint, avoids the size deviation or shape defect of inverter die casting due to the misplacement or deviation, and the connecting pipe will enter the inside of the clamping groove and the air inlet pipe, and the connecting pipe will drive the rubber sealing ring and be clamped into the inside of the clamping groove, thereby the sealing property after the upper die and the lower die are closed is improved, the leakage of cooling gas during the die casting process is effectively prevented, and the safety and stability of production are guaranteed. ACCURATE DRAWINGS

[0020] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is the inside structure front view schematic diagram of the utility model;

[0022] Figure 3 It is the inside structure plan schematic diagram of the cooling cavity of the utility model;

[0023] Figure 4 It is the inside structure plan schematic diagram of the cooling cavity of the utility model;

[0024] Figure 5 It is the Figure 2 Local enlarged view of area A of the utility model;

[0025] Figure 6The utility model discloses a Figure 2 Partial close -up drawing of middle B area.

[0026] In the drawing: 1, base, 2, fixed frame, 3, hydraulic cylinder, 4, upper die, 5, lower die, 6, cooling cavity, 7, refrigeration mechanism, 8, first heat conduction plate, 9, serpentine heat exchange pipe, 10, fan, 11, air outlet pipe, 12, air inlet pipe, 13, clamping groove, 14, rectangular groove, 15, rectangular block, 16, connecting pipe, 17, rubber sealing ring, 18, cold air cavity, 19, second heat conduction plate, 20, feed inlet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a die-casting cavity with heat dissipation structure of inverter, including base 1, the rear side of the upper end of base 1 is provided with fixed frame 2, the upper end of fixed frame 2 is provided with hydraulic cylinder 3, the output end of hydraulic cylinder 3 is provided with upper die 4;

[0029] Still include lower die 5, it is arranged in the upper end inside base 1, the lower side of lower die 5 inside is provided with cooling cavity 6, the upper end inside cooling cavity 6 is provided with a plurality of first heat conduction plates 8 that are distributed in rectangular array;

[0030] Still include cold air cavity 18, it is arranged in the inside of upper die 4, the lower end inside cold air cavity 18 is provided with a plurality of second heat conduction plates 19 that are distributed in rectangular array;

[0031] Still include clamping groove 13, it is arranged in the both sides of the upper end of lower die 5, the both sides of the lower end inside cold air cavity 18 are provided with connecting pipe 16, and one end of connecting pipe 16 is extended to the outside of cold air cavity 18.

[0032] In use, the upper die 4 is driven to move down and the lower die 5 is accurately closed by starting the hydraulic cylinder 3, the position accuracy is ensured by the rectangular block 15 and the rectangular groove 14, the rubber sealing ring 17 is sealed by the connecting pipe 16 after the mold is closed, so as to prevent the cold air from leaking, the refrigeration mechanism 7 cools the coolant in the cooling cavity 6, the first heat conduction plate 8 guides the heat of the lower die 5 into the cooling cavity 6 to realize rapid cooling, at the same time, the fan 10 is started, the cooling gas is sent into the cold air cavity 18 through the air outlet pipe 11, the serpentine heat exchange pipe 9 and the connecting pipe 16, and the second heat conduction plate 19 is used to cool the upper die 4, so as to reduce the thermal stress, shorten the cooling time of the inverter die casting, improve the production efficiency and capacity.

[0033] Please refer to Figure 2 and Figure 4 , the lower side of the inside of the cooling cavity 6 is provided with a serpentine heat exchange pipe 9, the serpentine heat exchange pipe 9 is connected with one of the clamping grooves 13 through the air inlet pipe 12, and the serpentine structure of the serpentine heat exchange pipe 9 can increase the flow path when the gas passes through, so as to improve the efficiency of heat exchange;

[0034] Please refer to Figure 2 , one side of the upper end of the base 1 is provided with a fan 10, the fan 10 is connected with the serpentine heat exchange pipe 9 and the other clamping groove 13 through the air outlet pipe 11, the fan 10 can provide strong wind power, the cooled gas is transported into the cold air cavity 18 through the air outlet pipe 11, and the fan 10 is connected with the serpentine heat exchange pipe 9, so as to realize the recycling of the cooling gas, improve the energy utilization efficiency, and reduce the influence of external hot air on the cooling process;

[0035] Please refer to Figure 1 , Figure 5 and Figure 6 , two rectangular blocks 15 are adhered and fixed to the outer side of the lower end of the upper die 4, two rectangular grooves 14 are formed in the outer side of the upper end of the lower die 5, and the rectangular grooves 14 are matched with the rectangular blocks 15, the accurate matching of the rectangular blocks 15 and the rectangular grooves 14 ensures the position accuracy and stability of the upper die 4 and the lower die 5 when they are connected, avoids the defects of the die casting caused by misalignment or deviation, and improves the quality and consistency of the products;

[0036] Please refer to Figure 5 and Figure 6 , the rubber sealing ring 17 is adhered and fixed to the outer wall of one end of the connecting pipe 16 outside the cold air cavity 18, and the rubber sealing ring 17 is matched with the clamping groove 13, the rubber sealing ring 17 can be tightly filled between the clamping groove 13 and the connecting pipe 16 to form an effective sealing barrier, prevent the cold air from leaking, improve the sealing performance and stability of the cooling system, and ensure the durability of the cooling effect;

[0037] Please refer to Figure 2The lower end of the lower mold 5 is provided with a refrigeration mechanism 7, which is a mature device and can perform refrigeration, for example, a refrigeration mechanism disclosed in a patent with the publication number CN218277597U, so that the refrigeration mechanism 7 can continuously provide low-temperature cooling liquid for the cooling cavity 6, maintain the stable operation of the cooling system, further improve the cooling speed and efficiency of the lower mold 5, shorten the cooling time of the die casting, and thus improve the production efficiency and capacity;

[0038] Please refer to Figure 1 and Figure 2 One side of the upper end of the upper mold 4 is provided with a feeding port 20, which is designed to allow the molten metal to be conveniently and accurately injected into the die casting cavity, ensuring the smooth progress of the die casting process.

[0039] Working principle: when in use, the hydraulic cylinder 3 is started to make the upper mold 4 move downward to form a die casting cavity with the lower mold 5, and the two rectangular blocks 15 will be clamped into the corresponding rectangular grooves 14, ensuring the positional accuracy of the upper mold 4 and the lower mold 5 when they are connected, avoiding the size deviation or shape defects of the inverter die casting caused by misalignment or deviation. The downward movement of the upper mold 4 will drive the connecting pipe 16 to pass through the clamping groove 13 and be clamped into the air inlet pipe 12 and the air outlet pipe 11, and the rubber sealing ring 17 will be clamped into the clamping groove 13 when the connecting pipe 16 moves, forming a sealing barrier to improve the sealing performance of the upper mold 4 and the lower mold 5 after they are connected, effectively preventing the leakage of cold air in the subsequent process, ensuring the safety and stability of production. After the die casting is completed, the refrigeration mechanism 7 can be started to refrigerate the cooling liquid in the cooling cavity 6, and the heat of the lower mold 5 can be transferred to the inside of the cooling cavity 6 through the first heat-conducting plate 8, achieving rapid cooling of the lower mold 5. The fan 10 can be started, and the gas in the serpentine heat exchange pipe 9 can be transported to the inside of one of the connecting pipes 16 through the air outlet pipe 11, and then transported to the inside of the cold air cavity 18 through the connecting pipe 16. Since the gas exchanges heat with the external cooling liquid when passing through the serpentine heat exchange pipe 9, the gas entering the cold air cavity 18 can become cold air. The second heat-conducting plate 19 can conduct heat to the upper mold 4, and the cold air passing through the cold air cavity 18 can take away the heat on the upper mold 4, thereby rapidly reducing the temperature of the upper mold 4, reducing the thermal stress of the upper mold 4 caused by long-term high-temperature exposure, delaying material aging, prolonging the service life of the upper mold, and reducing production costs. The rapid cooling function of the upper mold 4 and the lower mold 5 significantly shortens the cooling time of the inverter die casting, shortens the entire production cycle, and thus improves the production efficiency and capacity.

[0040] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than by the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. An inverter die casting cavity with heat dissipation structure, comprising a base (1), the rear side of the upper end of the base (1) is provided with a fixing frame (2), the upper end of the fixing frame (2) is provided with a hydraulic cylinder (3), the output end of the hydraulic cylinder (3) is provided with an upper die (4), characterized in that: It also comprises a lower die (5) provided at the upper end inside the base (1), the lower side of the inside of the lower die (5) is provided with a cooling cavity (6), the upper end of the inside of the cooling cavity (6) is provided with a plurality of first heat-conducting plates (8) arranged in a rectangular array; It also comprises a cold air cavity (18) provided inside the upper die (4), the lower end of the inside of the cold air cavity (18) is provided with a plurality of second heat-conducting plates (19) arranged in a rectangular array; It also comprises a clamping groove (13) provided on both sides of the upper end of the lower die (5), the lower end of the inside of the cold air cavity (18) is provided with a connecting pipe (16) on both sides, and one end of the connecting pipe (16) extends to the outside of the cold air cavity (18).

2. The die-cast inverter cavity with heat sink structure of claim 1, wherein: The lower side of the inside of the cooling cavity (6) is provided with a serpentine heat exchange pipe (9), and the serpentine heat exchange pipe (9) is connected with one of the clamping grooves (13) through an air inlet pipe (12).

3. The die-cast inverter cavity with heat sink structure of claim 2, wherein: One side of the upper end of the inside of the base (1) is provided with a fan (10), and the fan (10) is connected with the serpentine heat exchange pipe (9) and the other clamping groove (13) through an air outlet pipe (11).

4. The die-cast inverter cavity with heat sink structure of claim 1, wherein: The outer side of the lower end of the upper die (4) is adhered and fixed with two rectangular blocks (15), the outer side of the upper end of the lower die (5) is provided with two rectangular grooves (14), and the rectangular grooves (14) are matched with the rectangular blocks (15).

5. The die-cast inverter cavity with heat sink structure of claim 1, wherein: The outer wall of one end of the connecting pipe (16) located outside the cold air cavity (18) is adhered and fixed with a rubber sealing ring (17), and the rubber sealing ring (17) is matched with the clamping groove (13).

6. The die-cast inverter cavity with heat sink structure of claim 1, wherein: The lower end of the lower die (5) is provided with a refrigeration mechanism (7).

7. The die-cast inverter cavity with heat sink structure of claim 1, wherein: One side of the upper end of the upper die (4) is provided with a feeding port (20).

Images