Power supply distributor die-casting cavity structure with good sealing performance

Abstract

The utility model discloses a power distributor die-casting cavity structure with good sealing performance, relates to the field of die-casting dies, and aims to solve the problems that in an existing die-casting device in the prior art, a die-casting cavity is formed by closing an upper die and a lower die, the sealing performance is poor when the upper die and the lower die are closed, external air is prone to making contact with non-cold-air materials, and the die-casting efficiency is high. The material is oxidized, and the quality of a finished product is influenced. A die cavity is fixedly formed in the middle of the upper end face of the lower die, a first semicircular-section rectangular annular groove is formed in the upper end face of the lower die, a circular-section rectangular annular sealing strip is fixedly arranged in the first semicircular-section rectangular annular groove, and rectangular-section rectangular annular grooves are connected to the two sides of the first semicircular-section rectangular annular groove correspondingly. An upper die is arranged at the upper end of the lower die, a die core is fixedly connected to the middle of the lower end of the upper die, and a second semicircular-section rectangular annular groove is formed in the lower end face of the upper die.

Description

TECHNICAL FIELD

[0001] The utility model relates to a die casting mould field, concretely is a power distributor die casting cavity structure with good sealing. BACKGROUND

[0002] Die casting is the abbreviation of pressure casting. It is a method that liquid or semi-liquid metal fills the die casting mold cavity under high pressure at high speed and quickly solidifies under pressure to obtain a casting. The die casting mold used is called a die casting mold.

[0003] The power distributor (PDU) plays a crucial role in new energy electric vehicles. As part of the "small three-electric" system of new energy electric vehicles, it is similar to the high-voltage distribution box and is a high-voltage power distribution unit in the high-voltage system solution of new energy vehicles. The PDU is closely connected to numerous high-voltage components and precisely coordinates the work of power batteries, motor controllers, electric air conditioners, electric steering, and other components, ensuring that each component can obtain stable and safe power supply. This is not only the key to the safe and efficient operation of new energy vehicles, but also an important link to ensure vehicle performance and passenger safety. The power distributor shell needs to be pressure cast during production.

[0004] For example, the authorized announcement number CN 212945365 U discloses a cavity structure of a die casting mold for a communication filter, which includes a cavity structure of a die casting mold for a communication filter, characterized by: including a base, the upper end of the base is provided with a fixed mold, the fixed mold is provided with a vertical column on both sides, the top end of the vertical column is provided with a horizontal rack, the upper end of the horizontal rack is provided with a first hydraulic driver, the first hydraulic driver is provided with a support rod near the two sides of the horizontal rack, the end shaft of the first hydraulic driver is connected with an extension rod below, the bottom end of the extension rod is provided with a movable mold, the movable mold is provided with a shunt pipe on the upper end; the cavity structure of the die casting mold for the communication filter can achieve sufficient mixing degree of the metal solution for die casting, can speed up the solution diffusion filling rate, and can improve the quality of the casting through the shunt pipe, the exhaust pump, and the vibration mechanism. The first push mold plate and the second push mold plate can be set to achieve the convenience of removing the cavity structure of the die casting molding, effectively protecting the safety of the worker's operation.

[0005] In the existing die casting device, the die casting cavity is formed by closing the upper mold and the lower mold, but the sealing type is poor when the upper mold and the lower mold are closed, which easily causes the external air to contact the material that has not been cooled, resulting in material oxidation and affecting the quality of the finished product. Therefore, there is an urgent need to develop a power distributor die casting cavity structure with good sealing to help people solve the existing problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose lies in providing a good sealing power distributor die casting cavity structure to solve the problem of the poor sealing type of the upper die and the lower die when closing, which makes the external air contact with the material not cooled, resulting in material oxidation and affecting the quality of finished products.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a good sealing power distributor die casting cavity structure, including lower mould, the lower mould upper end surface middle part is fixedly set with mould cavity, the lower mould upper end surface is provided with first half circle section rectangular ring groove, the first half circle section rectangular ring groove inside is fixedly set with round section rectangular ring sealing strip, both sides of first half circle section rectangular ring groove are connected with rectangular section rectangular ring groove, the lower mould upper end is provided with upper die, the upper die lower extreme middle part is fixedly connected with mould core, the upper die lower end surface is provided with second half circle section rectangular ring groove.

[0008] Preferably, the mould core is inserted into the mould cavity, and the upper end of the round section rectangular ring sealing strip extends out of the upper end surface of the lower mould and is inserted into the second half circle section rectangular ring groove in the lower end surface of the upper die.

[0009] Preferably, the lower mould is provided with a cooling water channel inside and at the lower end of the mould cavity, and the cooling water channel extends to the end surfaces of the lower mould at both ends and is fixedly connected with a connecting pipe at both ends.

[0010] Preferably, the front and rear ends of the upper end surface of the lower mould are fixedly connected with guide columns, and the first circular through holes are arranged between the front and rear ends of the lower end surface of the upper die and the upper end surface of the upper die, and the four guide columns extend out of the upper end surface of the upper die by penetrating the four first circular through holes respectively.

[0011] Preferably, the upper end of the upper die is provided with a connecting rod in the middle part, the connecting rod is fixedly connected with a connecting plate at the lower end, the upper end surface of the upper die is provided with a plurality of threaded grooves in the middle part, and the connecting plate and the upper end surface of the upper die are fixedly connected by penetrating the connecting plate and inserting the threaded grooves through a plurality of bolts.

[0012] Preferably, the mould core is provided with a liquid injection pipe at one side of the middle part, and the connecting plate is provided with a second circular through hole at one side of the middle part.

[0013] Preferably, the upper end of the liquid injection pipe extends out of the upper end surface of the upper die and penetrates the second circular through hole.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. In the utility model, through the setting of the circular cross section rectangular ring sealing strip, when the upper die is about to be closed with the lower die, the circular cross section rectangular ring sealing strip is inserted into the second half circular cross section rectangular ring groove, when the upper die continues to be closed with the lower die, the circular cross section rectangular ring sealing strip is pressed down by the upper die, the circular cross section rectangular ring sealing strip is deformed to the rectangular cross section rectangular ring groove on both sides of the first half circular cross section rectangular ring groove, the circular cross section rectangular ring sealing strip realizes complete sealing between the upper die and the lower die, prevents the external air from contacting the uncooled material to cause material oxidation, and influences the die casting quality.

[0016] 2. In the utility model, through the setting of the cooling water channel, the cooling water channel is arranged in the lower die and at the lower end of the mold cavity, the cooling water channel extends to the end faces of the lower die at both ends and is fixedly connected with the connecting pipes at both ends, when the material is injected into the power adapter shell die casting cavity structure formed by the mold core and the mold cavity, the connecting pipes at both ends of the cooling water channel are connected to the circulating water cooling device, the circulating water cooling device circulates and transports the cooling water to the cooling water channel, the material in the cavity structure is cooled, and the cooling efficiency of the die casting material is improved.

[0017] 3. In the utility model, through the setting of the connecting plate, the lower end of the connecting rod is fixedly connected with the connecting plate, a plurality of threaded grooves are arranged in the middle of the upper end face of the upper die, the connecting plate and the upper end face of the upper die are fixedly connected in the threaded connection mode through a plurality of bolts penetrating through the connecting plate and being inserted into the threaded grooves, and the upper die is convenient to replace by disassembling the bolts. DRAWINGS

[0018] Figure 1 It is a front view of the power distributor die casting cavity structure with good sealing property of the utility model;

[0019] Figure 2 It is a main sectional view of the utility model;

[0020] Figure 3 It is a side sectional view of the utility model;

[0021] Figure 4 It is a cooling water channel down sectional view of the utility model;

[0022] Figure 5 It is an A detail enlarged view of the utility model.

[0023] In the figure: 1, lower mold; 101, cooling water channel; 102, connecting pipe; 103, mold cavity; 104, first half circular cross-section rectangular annular groove; 105, rectangular cross-section rectangular annular groove; 106, circular cross-section rectangular annular sealing strip; 107, guide column; 2, upper mold; 201, mold core; 202, second half circular cross-section rectangular annular groove; 203, liquid injection pipe; 204, first circular through hole; 205, threaded groove; 3, connecting rod; 301, connecting plate; 302, second circular through hole; 303, bolt. DETAILED DESCRIPTION

[0024] 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, rather than all the embodiments.

[0025] Please refer to Figures 1-5 An embodiment provided by the utility model discloses a power distributor die casting cavity structure with good sealing, which comprises a lower mold 1, the upper end surface of the lower mold 1 is fixedly provided with a mold cavity 103, the upper end surface of the lower mold 1 is provided with a first half circular cross-section rectangular annular groove 104, the first half circular cross-section rectangular annular groove 104 is fixedly provided with a circular cross-section rectangular annular sealing strip 106 inside, and the two sides of the first half circular cross-section rectangular annular groove 104 are connected with rectangular cross-section rectangular annular grooves 105; the upper end of the lower mold 1 is provided with an upper mold 2, the lower end of the upper mold 2 is fixedly connected with a mold core 201 in the middle, and the lower end surface of the upper mold 2 is provided with a second half circular cross-section rectangular annular groove 202.

[0026] Further, the mold core 201 is inserted into the mold cavity 103, the upper end of the circular cross-section rectangular annular sealing strip 106 extends out of the upper end surface of the lower mold 1 and is inserted into the second half circular cross-section rectangular annular groove 202 of the lower end surface of the upper mold 2, the mold core 201 is inserted into the mold cavity 103 when the upper mold 2 is lowered, thereby forming the cavity structure of the power adapter shell die casting, when the upper mold 2 is about to be folded with the lower mold 1, the circular cross-section rectangular annular sealing strip 106 is inserted into the second half circular cross-section rectangular annular groove 202, when the upper mold 2 is continuously lowered and folded with the lower mold 1, the upper mold 2 presses the circular cross-section rectangular annular sealing strip 106, the circular cross-section rectangular annular sealing strip 106 is deformed to the rectangular cross-section rectangular annular grooves 105 on the two sides of the first half circular cross-section rectangular annular groove 104, so that the circular cross-section rectangular annular sealing strip 106 realizes complete sealing between the upper mold 2 and the lower mold 1, thereby preventing the external air from contacting the uncooled material and causing the material oxidation, and affecting the die casting quality.

[0027] Further, the lower die 1 is internally provided with a cooling water channel 101 at the lower end of the mold cavity 103, the two ends of the cooling water channel 101 extend to the two side end faces of the lower die 1 and are fixedly connected with connecting pipes 102, when the material is injected into the power adapter shell die casting cavity structure formed by the mold core 201 and the mold cavity 103, the connecting pipes 102 at the two ends of the cooling water channel 101 are connected to the circulating water cooling device, and the cooling water is circulated to the cooling water channel 101 through the circulating water cooling device, so that the material in the cavity structure is cooled and the cooling efficiency of the die casting material is improved.

[0028] Further, the lower die 1 is internally provided with a cooling water channel 101 at the lower end of the mold cavity 103, the two ends of the cooling water channel 101 extend to the two side end faces of the lower die 1 and are fixedly connected with connecting pipes 102, when the material is injected into the power adapter shell die casting cavity structure formed by the mold core 201 and the mold cavity 103, the connecting pipes 102 at the two ends of the cooling water channel 101 are connected to the circulating water cooling device, and the cooling water is circulated to the cooling water channel 101 through the circulating water cooling device, so that the material in the cavity structure is cooled and the cooling efficiency of the die casting material is improved.

[0029] Further, the upper die 2 is provided with a connecting rod 3 at the upper end, the upper end of the connecting rod 3 is connected with the lifting driving mechanism of the die casting device, the lower end of the connecting rod 3 is fixedly connected with a connecting plate 301, a plurality of threaded grooves 205 are arranged in the middle of the upper end face of the upper die 2, the connecting plate 301 and the upper end face of the upper die 2 are fixedly connected by a plurality of bolts 303 which pass through the connecting plate 301 and are inserted into the threaded grooves 205, the connecting rod 3 is lifted by the lifting driving mechanism of the die casting device, so that the upper die 2 is lifted, and the upper die 2 is replaced by disassembling the bolts 303.

[0030] Further, the mold core 201 is provided with a liquid injection pipe 203 at one side of the middle, and the connecting plate 301 is provided with a second circular through hole 302 at one side of the middle.

[0031] Further, the upper end of the liquid injection pipe 203 extends out of the upper end face of the upper die 2 and is connected with the raw material conveying device after passing through the second circular through hole 302, the die casting material is conveyed to the liquid injection pipe 203 by the raw material conveying device, and the raw material is conveyed to the formed cavity structure for die casting.

[0032] Working principle: when using, the connecting rod 3 is lowered through the lifting drive mechanism of the die casting device, and then the upper die 2 is lowered and folded with the lower die 1, the mold core 201 is inserted into the cavity 103 inside to form the cavity structure of the power adapter shell die casting, when the upper die 2 is about to be folded with the lower die 1, the circular cross-section rectangular ring-shaped sealing strip 106 is inserted into the second half circular cross-section rectangular ring-shaped groove 202, and when the upper die 2 continues to be lowered and folded with the lower die 1, the upper die 2 presses the circular cross-section rectangular ring-shaped sealing strip 106, the circular cross-section rectangular ring-shaped sealing strip 106 is deformed to the rectangular cross-section rectangular ring-shaped groove 105 on both sides of the first half circular cross-section rectangular ring-shaped groove 104, so that the circular cross-section rectangular ring-shaped sealing strip 106 realizes complete sealing between the upper die 2 and the lower die 1, prevents external air from contacting the uncooled material to cause material oxidation, and affects the die casting quality, when the upper die 2 is lifted on the upper end of the lower die 1, the upper die 2 is guided through the guide column 107, the position alignment between the upper die 2 and the lower die 1 is guaranteed, the raw material conveying device is used to convey the die casting material to the liquid injection pipe 203, the liquid injection pipe 203 conveys the raw material to the cavity structure inside for die casting, after die casting, the both-end connecting pipe 102 of the cooling water channel 101 is connected to the circulating water cooling device, the cooling water is circulated and conveyed to the cooling water channel 101 through the circulating water cooling device, the die casting material inside the cavity structure is cooled, and the cooling efficiency of the die casting material is improved.

[0033] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A die-cast cavity structure of a power distributor with good sealing, comprising a lower die (1), characterized in that: The lower mold (1) upper end face middle part is provided with a mold cavity (103), the lower mold (1) upper end face is provided with a first half circle section rectangular ring groove (104), the first half circle section rectangular ring groove (104) is internally provided with a circular section rectangular ring sealing strip (106), the both sides of the first half circle section rectangular ring groove (104) are connected with a rectangular section rectangular ring groove (105), the lower mold (1) upper end is provided with an upper mold (2), the upper mold (2) lower end middle part is fixedly connected with a mold core (201), the upper mold (2) lower end face is provided with a second half circle section rectangular ring groove (202).

2. A power distributor die-cast cavity structure with good sealing according to claim 1, characterized in that: The mold core (201) is inserted into the mold cavity (103), and the upper end of the circular section rectangular ring sealing strip (106) extends out of the upper end face of the lower mold (1) and is inserted into the second half circle section rectangular ring groove (202) of the lower end face of the upper mold (2).

3. A power distributor die-cast cavity structure with good sealing according to claim 1, characterized in that: The lower mold (1) is internally provided with a cooling water channel (101) below the mold cavity (103), and the both ends of the cooling water channel (101) extend to the both side end faces of the lower mold (1) and are fixedly connected with connecting pipes (102).

4. A power distribution unit die cast cavity structure with improved sealing as claimed in claim 1, wherein: The both ends of the lower mold (1) upper end face are fixedly connected with guide columns (107), the both ends of the lower end face of the upper mold (2) are provided with first circular through holes (204) between the upper end face of the upper mold (2), and the four guide columns (107) extend out of the upper end face of the upper mold (2) through the four first circular through holes (204).

5. A power distribution unit die cast cavity structure with improved sealing as claimed in claim 1, wherein: The upper end middle part of the upper mold (2) is provided with a connecting rod (3), the lower end of the connecting rod (3) is fixedly connected with a connecting plate (301), the upper end face middle part of the upper mold (2) is provided with a plurality of threaded grooves (205), and the connecting plate (301) and the upper end face of the upper mold (2) are fixedly connected through a plurality of bolts (303) penetrating the connecting plate (301) and being inserted into the threaded grooves (205).

6. A power distribution unit die cast cavity structure with improved sealing according to claim 5, wherein: The middle part of the mold core (201) is provided with a liquid injection pipe (203), and the middle part of the connecting plate (301) is provided with a second circular through hole (302).

7. A power distribution unit die cast cavity structure with improved sealing as claimed in claim 6 wherein: The upper end of the liquid injection pipe (203) extends out of the upper end face of the upper mold (2) and penetrates the second circular through hole (302).

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