Automobile parking air heater shell mold assembly

Abstract

The utility model relates to the technical field of die-casting dies, in particular to an automobile parking air heater shell die assembly which comprises an upper shell die and a lower shell die, the lower shell die comprises a lower shell upper die, a lower shell lower die and an ejector pin assembly located at the bottom of the lower shell lower die, and a first cavity die set is formed between the lower shell upper die and the lower shell lower die. The first mold cavity module comprises a first upper mold cavity located on the upper mold of the lower shell and a first lower mold cavity located on the lower mold of the lower shell, a first mold core is arranged in the first lower mold cavity and comprises a first mold block and a second mold block, the first mold block is fixedly arranged in the first lower mold cavity, and a splicing structure is arranged between the second mold block and the first mold block. The automobile parking air heater shell mold assembly has the advantages that the formed heater shell is of a two-piece split type, and the shell is convenient to assemble and disassemble.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting molds, and particularly relates to a die-casting mold assembly for an automotive parking air heater housing. Background Art

[0002] A parking heater is an in-vehicle heating device independent of the vehicle engine, with its own fuel pipeline, circuit, combustion heating device, control device, etc. It can preheat and warm up the vehicle engine and cab parked in a cold environment in winter without starting the engine. It completely eliminates the cold start wear of the vehicle.

[0003] The structure of the parking heater housing is relatively complex and needs to be cast and processed using a casting mold. However, the existing casting molds for parking heater housings are not convenient enough for processing. A processing mold for a parking heater with the publication number "CN212310811U" includes a bottom plate, a chassis, a lifting plate, a top plate, an upper motor, a lead screw, an upper mold body, a fixed mold body, a moving mold body, a cylinder, a guide post, a spray head, a lower motor, a wire column, a through port, a bracket, and a column. Columns are symmetrically fixed at the top of the bottom plate, and a top plate is fixed at the top of the columns. A lifting plate is arranged below the top plate, and the columns are slidably inserted into the lifting plate. The bottom surface of the lifting plate is fixed with an upper mold body. A fixed mold body is fixed on the surface of the bottom plate. Guide posts are symmetrically arranged on one side of the fixed mold body on the surface of the bottom plate. A moving mold body is arranged on one side of the fixed mold body, and the guide posts are slidably inserted into the moving mold body. This processing mold for a parking heater uses a split upper mold body, fixed mold body, and moving mold body for die-casting processing, which is convenient for special-shaped workpieces to be die-cast with high precision, has high processing quality, is convenient for demoulding, and the lifting installation of the spray head can quickly spray casting liquid, improving the processing efficiency.

[0004] However, due to the molds in the above document and most of the molds on the market, their cavities or cores are integrally designed, resulting in the die-cast automotive parking air heater housing being integrally formed by casting. When a fault occurs inside, it is not convenient to disassemble the parking heater housing, which is not conducive to maintenance and repair. In addition, there are also split-type heater housings on the market. For example, a parking heater housing with the publication number "CN218085009U" includes an air inlet end cover, an upper shell, a lower shell, and an air outlet end cover. The upper shell and the lower shell form the heater housing, and the air inlet end cover and the air outlet end cover are respectively located at both ends of the housing. The above heater housing is divided into four parts, and the installation steps are more and more cumbersome. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to provide a die-casting mold assembly for an automotive parking air heater housing that is convenient for demoulding and the die-cast automotive parking air heater housing is in two split parts, making the housing convenient for assembly and disassembly, aiming at the deficiencies of the above-mentioned prior art.

[0006] To achieve the above object, the present utility model provides the following technical solution: An automobile parking air heater housing mold assembly, comprising an upper housing mold and a lower housing mold. The lower housing mold includes a lower housing upper mold, a lower housing lower mold, and a thimble assembly disposed at the bottom of the lower housing lower mold. A first cavity module is formed between the lower housing upper mold and the lower housing lower mold. The first cavity module includes a first upper cavity located in the lower housing upper mold and a first lower cavity located in the lower housing lower mold. A first core is provided in the first lower cavity. It is characterized in that: the first core includes a first block and a second block. The first block is fixedly disposed in the first lower cavity. A splicing structure is provided between the second block and the first block. When demolding, the thimble assembly can lift the second block and the molded product together.

[0007] Adopting the above technical solution: Compared with the prior art where the cavity and the core in the mold are of an integral structure, in this application, through the upper housing mold and the lower housing mold, the heater housing is divided into an upper housing and a lower housing for separate die casting, which facilitates the disassembly of the heater housing; and compared with die casting the heater housing into multiple components and then assembling them, the present utility model reduces the overall number of components, simplifies the installation steps, and improves the assembly efficiency.

[0008] A further setting of the present utility model is that: a plugging groove is provided on one side of the first block close to the second block, and a plugging block capable of reciprocatingly sliding along the plugging groove is provided on the second block. The plugging groove and the plugging block constitute the splicing structure.

[0009] Adopting the above technical solution: Through the setting of the plugging groove and the plugging block, the detachable connection between the first block and the second block is realized. After die casting is completed, the thimble can drive the second block and the molded product to be lifted together, so that problems such as damage to the molded product and inability to demold will not occur.

[0010] A further setting of the present utility model is that: the first block includes a first convex portion for forming the lower half of the air inlet end cover in the heater housing and a second convex portion for forming the main body portion of the lower housing; the second block includes a cylindrical portion for forming the air outlet end cover in the heater housing and a plugging portion for plugging into the second convex portion.

[0011] Adopting the above technical solution: Through the setting of the first and second core pins and the upper cavity, the shape of the upper cavity corresponds to that of the first and second core pins, enabling the formation of the lower shell of the heater after die casting. Through the setting of the first and second convex parts, the insertion part, and the cylindrical part, the lower shell of the heater can be successfully formed, and the formed lower shell has an integrally formed design for the main body part, the lower half of the air outlet end cover, and the lower half of the air inlet end cover. Compared with the prior art, two installation steps are reduced, greatly improving the installation efficiency and facilitating the assembly by the staff. At the same time, when the ejector pin assembly ejects the formed lower shell, since the air outlet end cover is integrally formed, it will surround the second die block. At this time, due to the detachable design of the second die block, the second die block can be ejected together with the formed product, thus not damaging the formed lower shell.

[0012] A further setting of the present utility model is: A first installation cavity for installing the second die block is provided in the first lower cavity. The first installation cavity is provided with a first mold cavity at the cylindrical part, which cooperates with the cylindrical part and promotes the integral formation of the air outlet end cover. A first gap is provided between the first mold cavity and both sides of the cylindrical part.

[0013] Adopting the above technical solution: At the same time, through the cooperation of the first mold cavity and the cylindrical part, and there is a first gap between the two, enabling the material to flow into the first mold cavity through the first gap and achieving the effect of integral formation of the air outlet end cover in cooperation with the cylindrical part.

[0014] A further setting of the present utility model is: A first step is provided on the cavity bottom of the first installation cavity at the insertion part. The bottom end of the insertion part is located on the first step, and a second gap is formed between the insertion part and the cavity bottom of the first installation cavity. An inclined groove is formed between the first lower cavity and both sides of the second convex part and the insertion part. The inclined groove on the insertion part protrudes relative to the end faces on both sides of the insertion part, promoting the die-casting material to flow into the second gap through the inclined groove for forming the lower end face of the air outlet end cover.

[0015] Adopting the above technical solution: Through the setting of the first step and the inclined groove, a second gap is formed between the insertion part and the cavity bottom of the first installation cavity, promoting the material to enter the second gap along the inclined groove and enabling the integral formation of the lower shell main body, the insertion part, and the air outlet end cover.

[0016] A further setting of the present utility model is: The ejector pin assembly includes a plurality of sliding rods slidably arranged at the bottom of the lower die of the lower shell, and the sliding rods are evenly arranged along the periphery of the bottom of the lower die. A push plate is provided at the bottom of the sliding rod, and a plurality of evenly distributed ejector pins are provided on the end face of the push plate close to the lower die. The push plate can move closer to or away from the lower die direction through an external driving source, and the ejector pins are used to eject the product formed in the first lower cavity.

[0017] The above technical solution is adopted: through the setting of the sliding rod and the push plate, the utility model is placed on the external hydraulic equipment during use. After the product is die-cast, the upper mold of the lower shell is opened, and the push plate is driven by the external hydraulic equipment, so that the push plate can move toward or away from the lower mold of the lower shell through the sliding rod, and the ejector pin set on the push plate can eject the formed product in the first lower cavity to achieve demolding.

[0018] A further configuration of the utility model is that: a plurality of first through holes corresponding to the ejector pins are provided on the first mold block, a plurality of second through holes corresponding to the ejector pins are penetrated through the first mounting cavity, and the ends of the ejector pins passing through the second through holes abut against the second mold block, so as to drive the second mold block to be lifted up simultaneously with the formed product, a through hole is provided on the end of the cylindrical portion, a mold groove is provided near the through hole on the lower mold of the lower shell, a bolt is provided in the mold groove, and the end of the bolt is located in the through hole.

[0019] By adopting the above technical solution, the first through-hole and the second through-hole are arranged, so that the ejector pin can lift up the molded product. At the same time, because the second through-hole is arranged in the first installation cavity, and the end of the ejector pin passing through the second through-hole abuts against the second mold block, the ejector pin can lift up the second mold block together with the molded product. In addition, due to the arrangement of the mold groove and the bolt, and the end of the bolt is located in the through-hole on the cylindrical portion, when the second mold block is lifted up along with the molded product, the second mold block is located in the molded product at this time. By knocking the bolt by the staff, the second mold block can be removed from the end of the air inlet end cover where only the lower half is formed, so as to facilitate the demolding of the second mold block.

[0020] A further arrangement of the utility model is: a feed port is provided on the lower mold of the lower shell located on one side of the first core, a clearance hole is provided on the side of the upper mold of the lower shell close to the feed port, a plurality of groups of flow channels are provided between the first upper cavity, the second lower cavity and the feed port, the flow channels connect the first upper cavity, the first lower cavity and the feed port to each other, and a plurality of groups of exhaust cavities are provided on the other side of the first core located corresponding to the flow channels.

[0021] The above technical solution is adopted: through the design of the feed port, and the feed port is connected with the runner and the upper and lower cavities. During use, the die-casting material is poured into the feed port, and the material enters the upper and lower cavities through the runner and waits for the molding to be completed. Through the setting of the exhaust cavity, it can be avoided that the gas in the cavity cannot be discharged in time.

[0022] A further setting of the present utility model is as follows: The upper shell mold includes an upper shell upper mold, an upper shell lower mold, and a thimble assembly disposed at the bottom of the upper shell lower mold. A second cavity module is formed between the upper shell upper mold and the upper shell lower mold. The second cavity module includes a second upper cavity located in the upper shell upper mold and a second lower cavity located in the upper shell lower mold. A second core is provided in the second lower cavity, and a plurality of third through holes for the thimble assembly to pass through are provided through the second core. The second core includes a third convex portion for forming the upper half of the air inlet end cover in the heater housing and a fourth convex portion for forming the main body portion of the upper shell.

[0023] Adopting the above technical solution: Through the setting of the second core and the second upper cavity, the heater upper shell can be formed after die casting. Through the setting of the third and fourth convex portions and the cooperation with the second upper cavity, the shape of the second upper cavity corresponds to that of the second core, so that the heater upper shell can be successfully formed, and the formed upper shell has an integrally formed design of the main body portion and the upper half of the air inlet end cover, which can be adapted to the lower shell formed by the above lower shell mold. Compared with the prior art, two installation steps are reduced, the installation efficiency is greatly improved, and it is convenient for the staff to assemble; in addition, through the setting of the third through holes, the thimble assembly can jack up the formed upper shell for convenient demolding.

[0024] A further setting of the present utility model is as follows: The third convex portion and the fourth convex portion are fixedly arranged in the second lower cavity. The bottom of the second lower cavity is arranged obliquely upward. Cooling mechanisms are provided in both the upper shell upper mold and the upper shell lower mold, and the cooling mechanisms are arranged around the formed product.

[0025] Adopting the above technical solution: Through the setting that the bottom of the second lower cavity is arranged obliquely upward and the cooperation with the second core, it can promote the upper shell to form an end face corresponding to the lower shell, which is convenient for assembly. At the same time, through the setting of the cooling mechanism, the cooling efficiency after die casting is improved, and the forming speed is increased.

[0026] The present utility model will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the lower shell mold of the present utility model.

[0028] Figure 2 It is a schematic diagram of the internal structure of the lower shell lower mold in Embodiment 1 of the present utility model.

[0029] Figure 3 It is a schematic diagram of the internal structure of the lower shell upper mold in Embodiment 1 of the present utility model.

[0030] Figure 4 It is an exploded view of the core in Embodiment 1 of the present utility model.

[0031] Figure 5 It is a top view sectional view of Embodiment 1 of the present utility model.

[0032] Figure 6 For the present utility model Figure 2 Enlarged view of part A.

[0033] Figure 7 It is a front view sectional view of Embodiment 1 of the present utility model with different degrees.

[0034] Figure 8 It is a schematic diagram of the lower cavity structure of Embodiment 2 of the present utility model.

[0035] Figure 9 For the present utility model Figure 7 Enlarged view of part B.

[0036] Figure 10 For the present utility model Figure 8 Enlarged view of part C.

[0037] Figure 11 It is a schematic diagram of the internal structure of the lower mold of the upper shell in Embodiment 2 of the present utility model.

[0038] Figure 12 It is a schematic diagram of the internal structure of the upper mold of the upper shell in Embodiment 2 of the present utility model.

[0039] Figure 13 It is a schematic diagram of the ejector pin assembly structure of the present utility model.

[0040] Figure 14 It is a diagram of the product formed after die-casting of the present utility model.

[0041] Label description: upper mold of the lower shell 1, first upper cavity 11, relief hole 12, lower mold of the lower shell 2, first lower cavity 21, first installation cavity 211, first step 2111, second gap 2112, first mold cavity 212, first gap 213, inclined groove 214, first core 22, first mold block 221, first convex part 2211, second convex part 2212, first through hole 2212a, insertion slot 2212b, second mold block 222, insertion part 2221, insertion block 2221a, cylindrical part 2222, through hole 2222a, bolt 2223, second through hole 2224, mold groove 23, feed port 24, runner 25, exhaust cavity 26;

[0042] Ejector pin assembly 3, sliding rod 31, bottom plate 32, ejector pin 321;

[0043] Upper mold of the upper shell 4, second upper cavity 41, lower mold of the upper shell 5, second lower cavity 51, second core 511, third through hole 5111, third convex part 5112, fourth convex part 5113, cooling mechanism 6. Specific embodiments

[0044] This specific embodiment is only an interpretation of the present utility model, and it is not a limitation to the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law. Embodiment 1

[0045] As Figures 1-14 shown, an automobile parking air heater housing mold assembly includes an upper shell mold and a lower shell mold. The lower shell mold includes a lower shell upper mold 1, a lower shell lower mold 2, and a thimble assembly 3 provided at the bottom of the lower shell lower mold 2. A first cavity module is formed between the lower shell upper mold 1 and the lower shell lower mold 2. The first cavity module includes a first upper cavity 11 located in the lower shell upper mold 1 and a first lower cavity 21 located in the lower shell lower mold 2. A first core 22 is provided in the first lower cavity 21. The first core 22 includes a first block 221 and a second block 222. The first block 221 is fixedly provided in the first lower cavity 21. A splicing structure is provided between the second block 222 and the first block 221. When demolding, the thimble assembly 3 can lift the second block 222 and the molded product together. As Figure 4 shown, a plug-in groove 2212b is provided on the side of the first block 221 close to the second block 222. A plug-in block 2221a that can slide reciprocally along the plug-in groove 2212b is provided on the second block 222. The plug-in groove 2212b and the plug-in block 2221a constitute the splicing structure.

[0046] As Figure 2 、 4 shown, the first block 221 includes a first convex portion 2211 for forming the lower half of the air inlet end cover in the heater housing and a second convex portion 2212 for forming the main body portion of the lower shell; the second block 222 includes a cylindrical portion 2222 for forming the air outlet end cover in the heater housing and a plug-in portion 2221 that is plugged into the second convex portion 2212.

[0047] As Figures 4-9 shown, a first installation cavity 211 for installing the second block 222 is provided in the first lower cavity 21. A first mold cavity 212 that cooperates with the cylindrical portion 2222 and promotes the integral formation of the air outlet end cover is provided at the position of the cylindrical portion 2222 in the first installation cavity 211. A first gap 213 is provided between the two sides of the first mold cavity 212 and the cylindrical portion 2222; As Figures 7-9On the cavity bottom of the first installation cavity 211 shown at the plug-in part 2221, there is a first step 2111. The bottom end of the plug-in part 2221 is located on the first step 2111, and it causes a second gap 2112 to be formed between the plug-in part 2221 and the cavity bottom of the first installation cavity 211. An inclined groove 214 is formed between the first lower cavity 21, the second convex part 2212, and both sides of the plug-in part 2221. The inclined groove 214 on the plug-in part 2221 protrudes relative to the end faces on both sides of the plug-in part 2221, enabling the die-casting material to flow into the second gap 2112 through the inclined groove 214 for forming the lower end face of the air outlet end cover.

[0048] As Figure 12 The ejector pin assembly 3 shown includes a plurality of sliding rods 31 slidably arranged at the bottom of the lower shell lower die 2, and the sliding rods 31 are evenly arranged along the periphery of the bottom of the lower die. A push plate is provided at the bottom of the sliding rod 31. A plurality of evenly distributed ejector pins 321 are provided on the end face of the push plate close to the lower die. The push plate can move closer to or away from the lower die through an external driving source, and it causes the ejector pins 321 to eject the product formed in the first lower cavity 21.

[0049] As Figure 5 、 7 On the first die block 221 shown, there are a plurality of first through holes 2212a corresponding to the ejector pins 321. A plurality of second through holes 2224 opposite to the ejector pins 321 are penetrated in the first installation cavity 211. The end of the ejector pin 321 passing through the second through hole 2224 abuts against the second die block 222, and it can drive the second die block 222 to be lifted simultaneously with the formed product. A through hole 2222a is provided at the end of the cylindrical part 2222. A mold groove 23 is provided on the lower shell lower die 2 close to the through hole 2222a. A bolt 2223 is provided in the mold groove 23, and the end of the bolt 2223 is located in the through hole 2222a.

[0050] As Figures 2-3 On one side of the lower shell lower die 2 shown, there is a feed port 24. A relief hole 12 is provided on the upper shell upper die 1 close to one side of the feed port 24. A plurality of groups of runners 25 are provided between the first upper cavity 11, the second lower cavity 51, and the feed port 24. The runners 25 connect the first upper cavity 11, the first lower cavity 21, and the feed port 24 to each other. A plurality of groups of exhaust cavities 26 are provided on the other side of the first core 22 corresponding to the runners 25.

[0051] During the use of the present utility model, through the setting of the first die block 221 and the second die block 222 and their cooperation with the first upper cavity 11, the shape of the first upper cavity 11 corresponds to them, and the heater lower shell can be successfully formed. Moreover, for the formed lower shell, its main part is integrally formed with the air outlet end cover and the lower half of the air inlet end cover. Compared with the prior art, two installation steps are reduced, the installation efficiency is greatly improved, and it is convenient for the staff to assemble. Embodiment 2

[0052] As Figures 10-11 shown, the structure of Embodiment 2 is basically the same as that of Embodiment 1. The difference lies in that the upper shell mold includes an upper shell upper mold 4, an upper shell lower mold 5, and a thimble assembly 3 provided at the bottom of the upper shell lower mold 5. A second cavity module is formed between the upper shell upper mold 4 and the upper shell lower mold 5. The second cavity module includes a second upper cavity 41 in the upper shell upper mold 4 and a second lower cavity 51 in the upper shell lower mold 5. A second core 511 is provided in the second lower cavity 51. A plurality of third through holes 5111 for the thimble assembly 3 to pass through are provided through the second core 511. The second core 511 includes a third convex portion 5112 for forming the upper half of the air inlet end cover in the heater housing and a fourth convex portion 5113 for forming the main body portion of the upper shell. The third convex portion 5112 and the fourth convex portion 5113 are fixedly arranged in the second lower cavity 51. The bottom of the second lower cavity 51 is arranged obliquely upward. Cooling mechanisms 6 are provided in both the upper shell upper mold 4 and the upper shell lower mold 5. The cooling mechanisms 6 are arranged around the molded product.

[0053] During the use of the present utility model, through the setting of the fourth and fifth convex portions and the cooperation with the second upper cavity 41, the shape of the second upper cavity 41 corresponds to the two, and the heater upper shell can be successfully molded. Moreover, for the formed upper shell, the main body portion and the upper half of the air inlet end cover are integrally molded, which can be adapted to the lower shell molded by the above lower shell mold. Compared with the prior art, two installation steps are reduced, the installation efficiency is greatly improved, and it is convenient for the staff to assemble.

[0054] The above examples are only two of the preferred specific examples of the present utility model. The common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are included in the protection scope of the present utility model.

Claims

1. A housing mold assembly of a parking air heater for an automobile, comprising an upper housing mold and a lower housing mold, wherein the lower housing mold comprises a lower housing upper mold, a lower housing lower mold, and an ejector assembly disposed at the bottom of the lower housing lower mold, wherein a first cavity mold group is formed between the lower housing upper mold and the lower housing lower mold, wherein the first cavity mold group comprises a first upper cavity disposed in the lower housing upper mold and a first lower cavity disposed in the lower housing lower mold, wherein a first core is disposed in the first lower cavity, and wherein the ... The first core includes a first mold block and a second mold block. The first mold block is fixedly arranged in the first lower mold cavity. A splicing structure is provided between the second mold block and the first mold block. When demolding, the ejector pin assembly can lift the second mold block together with the molded product.

2. The housing mold assembly of a parking air heater for an automobile according to claim 1, characterized in that: A plug-in slot is provided on one side of the first block close to the second block, and a plug-in block capable of reciprocatingly sliding along the plug-in slot is provided on the second block. The plug-in slot and the plug-in block form a splicing structure.

3. The housing mold assembly of a parking air heater for an automobile according to claim 2, characterized in that: The first block includes a first protrusion for forming the lower half of the air inlet end cover in the heater housing and a second protrusion for forming the main body of the lower shell; the second block includes a cylindrical portion for forming the air outlet end cover in the heater housing and a plug-in portion for plugging with the second protrusion.

4. The housing mold assembly of a parking air heater for an automobile according to claim 3, characterized in that: The first lower cavity is provided with a first installation cavity for installing the second mold block. The first installation cavity is located at the cylindrical part and is provided with a first mold cavity that cooperates with the cylindrical part and promotes the integral molding of the air outlet end cover. A first gap is provided between the first mold cavity and both sides of the cylindrical part.

5. The housing mold assembly of a parking air heater for an automobile according to claim 4, characterized in that: The first installation cavity is provided with a first step on the bottom of the cavity at the plug-in part, the bottom end of the plug-in part is located on the first step, and a second gap is formed between the plug-in part and the bottom of the first installation cavity, an inclined groove is formed between the first lower cavity and the second convex part and the two sides of the plug-in part, and the inclined groove on the plug-in part is raised relative to the end faces on both sides of the plug-in part, so that the die-casting material can flow into the second gap through the inclined groove for forming the lower end face of the air outlet cover.

6. The housing mold assembly of a parking air heater for an automobile according to claim 5, characterized in that: The ejector assembly includes a plurality of sliding rods slidably arranged at the bottom of the lower mold of the lower shell, and the sliding rods are evenly arranged along the four sides of the bottom of the lower mold. A push plate is provided at the bottom of the sliding rod, and a plurality of evenly distributed ejectors are provided on the end surface of the push plate close to the lower mold. The push plate can move towards or away from the lower mold through an external driving source, and prompts the ejector to eject the product formed in the first lower cavity.

7. The housing mold assembly of a parking air heater for an automobile according to claim 6, characterized in that: The first mold block is provided with a plurality of first through holes corresponding to the ejector pins, the first mounting cavity is penetrated with a plurality of second through holes which are against the ejector pins, and the ends of the ejector pins passing through the second through holes abut against the second mold block, so that the second mold block can be lifted up simultaneously with the formed product, a through hole is provided on the end of the cylindrical portion, and a groove is provided near the through hole on the lower mold of the lower shell, a bolt is provided in the groove, and the end of the bolt is located in the through hole.

8. The housing mold assembly of a parking air heater for an automobile according to claim 7, characterized in that: The lower mold of the lower shell is provided with a feed port on one side of the first core, and the upper mold of the lower shell is provided with a clearance hole on the side close to the feed port. Several groups of flow channels are provided between the first upper cavity, the second lower cavity and the feed port, and the flow channels connect the first upper cavity, the first lower cavity and the feed port to each other. The first core is provided with several groups of exhaust cavities on the other side corresponding to the flow channels.

9. The housing mold assembly of a parking air heater for an automobile according to any one of claims 1 to 8, characterized in that: The upper shell mold includes an upper shell upper mold, an upper shell lower mold and an ejector pin assembly arranged at the bottom of the upper shell lower mold, a second cavity mold group is formed between the upper shell upper mold and the upper shell lower mold, the second cavity mold group includes a second upper cavity located in the upper shell upper mold and a second lower cavity located in the upper shell lower mold, a second core is arranged in the second lower cavity, a plurality of third through holes are penetrated on the second core for the ejector pin assembly to pass through, the second core includes a third convex portion for forming the upper half of the air inlet end cover in the heater shell and a fourth convex portion for forming the main body of the upper shell.

10. The housing mold assembly of a parking air heater for an automobile according to claim 9, characterized in that: The third convex portion and the fourth convex portion are fixedly arranged in the second lower cavity, the bottom of the second lower cavity is inclined upward, and cooling mechanisms are provided in the upper shell upper mold and the upper shell lower mold, and the cooling mechanisms are arranged around the molded product.

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