A driving recorder injection mold

By introducing a cooling mechanism into the injection mold of the dashcam, the problem of slow mold cooling is solved by using the circulation and exchange of cold and hot water and the fan to accelerate air flow, thus achieving rapid cooling and efficient production.

CN224527877UActive Publication Date: 2026-07-21ZHONGSHAN MIHA SMART TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN MIHA SMART TECHNOLOGY CO LTD
Filing Date
2025-08-31
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing injection molds require prolonged natural cooling during production, resulting in low production efficiency and causing harm to operators due to high temperatures.

Method used

A dashcam injection mold with a cooling mechanism was designed. The combination of a cooling box, solenoid valve, micro pump and heat exchange tube achieves rapid cooling of the mold. The cooling process is accelerated by the circulation of cold and hot water, and the heat transfer is promoted by the fan to accelerate air flow.

Benefits of technology

It improves the cooling efficiency of the mold, shortens the molding time, increases production efficiency, reduces energy waste, and enhances the automation of production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224527877U_ABST
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Abstract

The utility model discloses a kind of automobile data recorder injection mould, it is related to automobile data recorder production technical field. Including base, the base top central fixedly connected with lower mould, the base top central is equipped with through-hole, through-hole is slidably connected with top rod, the lower mould top is provided with upper mould, lower mould and upper mould form automobile data recorder injection cavity after moulding together. The utility model is provided with cooling mechanism, in use process, when moulding together injection moulding, first start miniature pump, cold water in cold water tank flows to electromagnetic valve through support pipe, connecting pipe, after the opening of electromagnetic valve, cold water enters cooling tank and contacts with mould, temperature rises to form hot water after absorbing mould heat, hot water is backflowed to hot water tank by another set of connecting pipe, while hot water is input into cold water tank by heat exchange pipe, the device can make that each part of mould can be cooled more evenly, avoid the situation of local overheating.
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Description

Technical Field

[0001] This utility model relates to the field of dashcam manufacturing technology, specifically to a dashcam injection mold. Background Technology

[0002] In the production of car dashcam housing parts, injection molding is used to achieve the complete structure and precise dimensions of plastic products. Injection molding is a processing method used for the mass production of certain complex-shaped parts. Specifically, it refers to injecting molten plastic into the mold cavity under high pressure by an injection molding machine, and after cooling and solidification, the molded product is obtained. The main function of the car dashcam housing is to protect the electronic components inside the dashcam and prevent damage to the components inside the dashcam in the event of an accident.

[0003] Injection molds are required in the production of dashcams. However, existing injection molds often do not cool the product during the production process, so it often takes a long time to wait for the material to cool down naturally, which reduces the production efficiency of existing injection molds. At the same time, the high temperature of the product and the mold often causes injury to the operators. Therefore, we propose a more convenient injection mold to meet the needs of users. Utility Model Content

[0004] The purpose of this utility model is to provide an injection mold for a dashcam to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dashcam injection mold, including a base, a lower mold fixedly connected to the center of the top of the base, a through hole opened in the center of the top of the base, a push rod slidably connected in the through hole, an upper mold provided on the top of the lower mold, and the lower mold and the upper mold forming a dashcam injection cavity after being closed, a cooling mechanism provided on one side of the lower mold and the upper mold for cooling the mold, the cooling mechanism including multiple equidistant cooling boxes, the cooling boxes being in contact with the mold.

[0006] Furthermore, guide posts are fixedly connected to the four corners of the top of the base, sliding sleeves are slidably connected to the outer walls of the guide posts, and top plates are fixedly connected to the outer walls of the sliding sleeves. The top plates are connected to the upper mold.

[0007] Furthermore, a through hole is provided in the center of the top of the top plate, and an injection tube is fixedly connected in the through hole, with one end of the injection tube in contact with the upper mold.

[0008] Furthermore, solenoid valves are installed on both sides of the cooling box, with a connecting pipe fixedly connected to one end of each solenoid valve, and a support pipe fixedly connected to the center of the top of the connecting pipe.

[0009] Furthermore, a micro pump is installed at one end of the support tube, and a cold water tank and a hot water tank are fixedly connected to one side of the micro pump, with a heat exchange tube fixedly connected between the cold water tank and the hot water tank.

[0010] Furthermore, the top of the cold water tank and the hot water tank are fixedly connected to an installation plate, and a fan is installed in the center of the top of the installation plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This dashcam injection mold, through its cooling mechanism, activates a micro pump during injection molding. Cold water from the cold water tank flows through support and connecting pipes to a solenoid valve. Once the solenoid valve opens, the cold water enters the cooling tank in contact with the mold, absorbing heat and rising to form hot water. This hot water then flows back to the hot water tank through another set of connecting pipes. Simultaneously, hot water is introduced into the cold water tank through heat exchange pipes. During this process, a fan mounted on the mounting plate accelerates airflow, rapidly cooling the hot water. This device ensures uniform cooling of all parts of the mold, preventing localized overheating and accelerating the overall cooling rate of the mold. It improves injection molding efficiency, is highly practical, and suitable for widespread adoption.

[0012] Meanwhile, after injection molding is completed, the ejector pin can push the molded vehicle recorder out of the lower mold, making it easier to remove the product and improving the automation level and production efficiency of the production process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the injection molding component structure of this utility model; Figure 3 This is a schematic diagram of the cooling mechanism of this utility model.

[0014] In the diagram: 1. Base; 2. Lower mold; 3. Ejector rod; 4. Guide pillar; 5. Top plate; 6. Sliding sleeve; 7. Upper mold; 8. Injection tube; 9. Cooling mechanism; 901. Cooling tank; 902. Solenoid valve; 903. Connecting pipe; 904. Support pipe; 905. Micro pump; 906. Cold water tank; 907. Hot water tank; 908. Heat exchanger tube; 909. Mounting plate; 910. Fan. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the production process of dashcams, injection molds are required. The injection mold provided by this utility model is specifically used for mold injection operations in the production of dashcams. When using this equipment for injection operations, the mold needs to be preheated before the injection operation begins to ensure that the mold temperature reaches the appropriate temperature range for the injection material, so as to improve injection efficiency and product quality. During the injection process, the injection pressure and injection speed must be strictly controlled to avoid mold damage or product defects caused by excessive injection pressure or speed. At the same time, the venting of the mold should be closely monitored to ensure that the gas inside the mold can be smoothly discharged to avoid problems such as air bubbles or shrinkage.

[0017] like Figures 1-3 As shown, this utility model provides a technical solution: a dashcam injection mold, including a base 1, a lower mold 2 fixedly connected to the top center of the base 1, a through hole opened in the top center of the base 1, a push rod 3 slidably connected in the through hole, an upper mold 7 set on the top of the lower mold 2, and the lower mold 2 and the upper mold 7 forming a dashcam injection cavity after being closed, a cooling mechanism 9 set on one side of the lower mold 2 and the upper mold 7 for cooling the mold, the cooling mechanism 9 including a plurality of equidistant cooling boxes 901, the cooling boxes 901 being in contact with the mold.

[0018] like Figure 2 As shown, guide posts 4 are fixedly connected to the four corners of the top of the base 1. Sliding sleeves 6 are slidably connected to the outer wall of the guide posts 4. Top plate 5 is fixedly connected to the outer wall of the sliding sleeve 6. Top plate 5 is connected to the upper mold 7. A through hole is opened in the center of the top of the top plate 5. An injection tube 8 is fixedly connected in the through hole. One end of the injection tube 8 is in contact with the upper mold 7.

[0019] It is important to note that during operation, the hydraulic cylinder first activates, pushing the top plate 5 to the upper mold 7. Under the action of the sliding sleeve 6, the guide column 4 moves downward, allowing the upper mold 7 and the lower mold 2 to precisely close, forming the injection cavity for the dashcam. Then, the plastic raw material is injected into the cavity through the injection tube 8 to begin molding. Simultaneously, the cooling mechanism 9 is activated to cool the product. After cooling and molding, the upper mold 7 and the lower mold 2 open, and the dashcam is removed from the mold under the action of the ejector rod 3. The ejector rod 3 can push the molded dashcam out of the lower mold 2, facilitating product removal and improving the automation and production efficiency of the production process.

[0020] like Figure 3 As shown, solenoid valves 902 are installed on both sides of the cooling tank 901. A connecting pipe 903 is fixedly connected to one end of the solenoid valve 902. A support pipe 904 is fixedly connected to the top center of the connecting pipe 903. A micro pump 905 is installed at one end of the support pipe 904. A cold water tank 906 and a hot water tank 907 are fixedly connected to one side of the micro pump 905 respectively. A heat exchange pipe 908 is fixedly connected between the cold water tank 906 and the hot water tank 907. A mounting plate 909 is fixedly connected to the top of the cold water tank 906 and the hot water tank 907. A fan 910 is installed at the top center of the mounting plate 909.

[0021] It is important to note that during operation, when the mold is closed for injection molding, the micro pump 905 is started first. The cold water in the cold water tank 906 flows to the solenoid valve 902 through the support pipe 904 and the connecting pipe 903. After the solenoid valve 902 is opened, the cold water enters the cooling tank 901, which is in contact with the mold. After absorbing heat from the mold, the temperature rises and forms hot water. The hot water flows back to the hot water tank 907 through another set of connecting pipes 903. At the same time, the hot water is introduced into the cold water tank 906 through the heat exchange pipe 908. During this process, the fan 910 installed on the mounting plate 909 accelerates the airflow and accelerates the rapid cooling of the hot water. The cooling mechanism 9 can transfer some of the heat to the cold water in the cold water tank 906, realizing the recovery and reuse of heat, which can improve energy utilization efficiency and reduce energy waste.

[0022] During operation, the hydraulic cylinder first activates, pushing the top plate 5 to the upper mold 7. This, in turn, causes the guide column 4 to move downwards via the sliding sleeve 6, precisely closing the upper mold 7 and lower mold 2 to form the injection cavity for the vehicle recorder. Next, plastic raw material is injected into the cavity through the injection tube 8 to begin molding. Simultaneously, the micro pump 905 is activated, and cold water from the cold water tank 906 flows through the support pipe 904 and connecting pipe 903 to the solenoid valve 902. Once the solenoid valve 902 opens, the cold water enters the cooling tank 901, which is in contact with the mold. After absorbing heat from the mold, the water's temperature rises, forming hot water. Hot water flows back to the hot water tank 907 through another set of connecting pipes 903, and at the same time, hot water is input into the cold water tank 906 through the heat exchange pipe 908. During this process, the fan 910 installed on the mounting plate 909 accelerates the airflow and accelerates the rapid cooling of the hot water. After cooling and molding, the upper mold 7 and the lower mold 2 are opened and removed from the mold under the action of the ejector rod 3. This device can make all parts of the mold receive relatively uniform cooling, avoid local overheating, thereby accelerating the overall cooling speed of the mold and improving the efficiency of injection molding.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A dashcam injection mold, comprising a base (1), characterized in that: The base (1) has a lower mold (2) fixedly connected to the center of the top. The base (1) has a through hole in the center of the top. A top rod (3) is slidably connected in the through hole. The lower mold (2) has an upper mold (7) on its top. The lower mold (2) and the upper mold (7) are closed to form the injection cavity of the driving recorder. The lower mold (2) and the upper mold (7) have a cooling mechanism (9) on one side for cooling the mold. The cooling mechanism (9) includes multiple equidistant cooling boxes (901). The cooling boxes (901) are in contact with the mold.

2. The injection mold for a dashcam according to claim 1, characterized in that: The base (1) has four corners at the top fixedly connected with guide columns (4), the outer wall of the guide columns (4) is slidably connected with a sliding sleeve (6), the outer wall of the sliding sleeve (6) is fixedly connected with a top plate (5), and the top plate (5) and the upper mold (7) are connected to each other.

3. The injection mold for a dashcam according to claim 2, characterized in that: The top plate (5) has a through hole in the center of the top, and an injection tube (8) is fixedly connected in the through hole. One end of the injection tube (8) is in contact with the upper mold (7).

4. The injection mold for a dashcam according to claim 1, characterized in that: Solenoid valves (902) are installed on both sides of the cooling box (901). A connecting pipe (903) is fixedly connected to one end of the solenoid valve (902), and a support pipe (904) is fixedly connected to the top center of the connecting pipe (903).

5. The injection mold for a dashcam according to claim 4, characterized in that: A micro pump (905) is installed at one end of the support tube (904). A cold water tank (906) and a hot water tank (907) are fixedly connected to one side of the micro pump (905). A heat exchange tube (908) is fixedly connected between the cold water tank (906) and the hot water tank (907).

6. The injection mold for a dashcam according to claim 5, characterized in that: The cold water tank (906) and the hot water tank (907) are fixedly connected to the top of the mounting plate (909), and a fan (910) is installed in the center of the top of the mounting plate (909).