A cooling device for injection molding of a turn signal lens
By introducing an automated cleaning system and circulating coolant cooling methods into the cooling device used for injection molding of turn signal covers, the problems of cooling effect being affected by external temperature fluctuations and filter clogging have been solved, achieving a stable and efficient cooling effect and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU PULUOSI AUTOMOBILE IND CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-19
AI Technical Summary
The cooling effect of existing cooling devices for turn signal lens injection molding is easily affected by fluctuations in ambient temperature. Under high-temperature conditions, the heat dissipation efficiency drops significantly, and the lack of an automated filter cleaning mechanism leads to filter clogging during long-term operation, affecting cooling efficiency.
A cooling device was designed, comprising a housing, a liquid storage tank, a motor, an exhaust fan, a cleaning brush, a cooler, and a reflux pump. The cleaning brush, driven by the motor, automatically cleans the dust from the filter plate, and the cooler and reflux pump circulate the coolant to reduce the temperature of the heat exchange copper tubes, thereby achieving automated filter cleaning and efficient cooling.
It effectively prevents filter plate clogging, improves cooling effect, ensures stable and efficient cooling of turn signal covers under different ambient temperatures, and improves production efficiency and product quality.
Smart Images

Figure CN224374792U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of turn signal lamp cover processing technology, specifically a cooling device for injection molding of turn signal lamp covers. Background Technology
[0002] Cooling devices for turn signal lamp covers are key auxiliary equipment in the injection molding process. Their main function is to rapidly reduce the temperature of the injection mold through controlled circulation of a cooling medium (such as water or oil), allowing the lamp cover blank to solidify quickly within the mold and ensuring dimensional accuracy and surface quality. This device typically consists of a cooling pipe system, a temperature control unit, a circulating pump, and a heat exchanger. The cooling pipes are embedded around the mold cavity, forming an efficient heat dissipation channel. The temperature control unit precisely regulates the temperature of the cooling medium, preventing problems such as product deformation, shrinkage, or internal stress concentration caused by uneven cooling. The circulating pump drives continuous flow of the medium, ensuring stable cooling efficiency. By rationally designing the layout and parameters of the cooling device, the injection molding cycle can be significantly shortened, production efficiency improved, and the physical properties of the lamp cover optimized.
[0003] The prior art patent application number is 201822191493.8, and the patent name is: A cooling device for injection molding of automotive side turn signal lamp covers. It includes a base, a water tank, a box body, and a heat pipe. The four corners of the base are equipped with casters. The box body is installed on the top of the base, and a control panel is installed on the bottom of one side of the box body. A microcontroller is installed inside the control panel. A vacuum cleaner is installed on the top of one side of the box body, and a vacuum cleaner pipe is installed on the top of the vacuum cleaner. The end of the vacuum cleaner pipe away from the vacuum cleaner extends to the bottom of the box body. A protective shell is installed on the top of the box body, and a fan is installed inside the protective shell. This invention utilizes an ultraviolet germicidal lamp and a negative ion generator to treat toxic gases. The ultraviolet germicidal lamp sterilizes the air and eliminates harmful substances, while the negative ion generator produces a large number of negative oxygen ions for sterilization and disinfection. However, the cooling mechanism within the fan relies solely on simple air extraction to cool the turn signal covers. This single air-cooling method has significant limitations: firstly, its cooling effect is easily affected by fluctuations in ambient temperature, and its heat dissipation efficiency decreases significantly under high-temperature conditions; secondly, although a basic filter structure is installed at the fan inlet, the lack of an automated filter cleaning mechanism leads to dust accumulation and filter blockage during long-term operation. This not only increases the fan's load and energy consumption but also increases airflow resistance, ultimately causing a continuous decline in cooling efficiency. Therefore, we propose a cooling device for the injection molding of turn signal covers. Utility Model Content
[0004] The purpose of this utility model is to provide a cooling device for injection molding of turn signal covers, in order to solve the problems mentioned in the background art, such as the cooling effect being easily affected by fluctuations in the external ambient temperature, the significant decrease in heat dissipation efficiency under high temperature conditions, the lack of an automated filter cleaning mechanism, and the accumulation of dust causing filter blockage during long-term operation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for injection molding of turn signal lamp covers, comprising a housing and a liquid storage tank, the liquid storage tank being located above the housing, a first filter plate being fixedly connected to the top of the housing, an installation chamber being fixedly connected to the top of the housing, an air inlet chamber being fixedly connected to the top of the installation chamber, a filter baffle being fixedly connected to the inner side of the air inlet chamber, and a second filter plate being inserted into one side of the air inlet chamber.
[0006] As a further description of the above technical solution:
[0007] One side of the second filter plate extends into the inner side of the air intake chamber, and the second filter plate is in contact with the filter baffle.
[0008] As a further description of the above technical solution:
[0009] The inner wall of the installation chamber is fixedly connected to a mounting frame, the top of the mounting frame is fixedly connected to a motor, and the top of the motor's power output shaft is fixedly connected to a drive rod.
[0010] As a further description of the above technical solution:
[0011] An exhaust fan is fixedly connected to the outside of the drive rod, and two cleaning brushes are fixedly connected to the outside of the drive rod. The cleaning brushes are in contact with the second filter plate and the filter baffle.
[0012] As a further description of the above technical solution:
[0013] A cooler is fixedly connected to one side of the liquid storage tank, and a cooler pipe is fixedly connected to one side of the cooler.
[0014] As a further description of the above technical solution:
[0015] One end of the refrigeration pipe passes through the liquid storage tank and extends into the inner cavity of the liquid storage tank. A reflux pump is fixedly connected to one side of the liquid storage tank, and two infusion pipes are fixedly connected to one side of the reflux pump.
[0016] As a further description of the above technical solution:
[0017] One end of the infusion tube passes through the liquid storage tank and extends into the inner cavity of the liquid storage tank, and a heat exchange copper tube is fixedly connected to one side of the reflux pump.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. The cooling device for injection molding of the turn signal lens cover uses a starting motor to drive the drive rod to rotate, which in turn causes the exhaust fan on the drive rod to rotate and perform air extraction. At the same time, when the drive rod rotates, the cleaning brush installed on the drive rod rotates around the drive rod as the center, so that the cleaning brush cleans the filter baffle and the second filter plate, thereby automatically cleaning the dust on the filter plate and preventing the dust from clogging the filter plate.
[0020] 2. The cooling device for injection molding of the turn signal lens cover works by starting the cooler to activate the cooling pipes on the cooler, which cools the coolant in the storage tank. Then, the return pump is started to send the coolant into the heat exchange copper tube through one side of the liquid delivery pipe, so that the low-temperature coolant lowers the temperature of the heat exchange copper tube. At the same time, the return pump sends the room-temperature coolant in the heat exchange copper tube back to the storage tank through the other side of the liquid delivery pipe. After being cooled again by the cooling pipe, it flows back into the heat exchange copper tube. This cycle continues to lower the temperature of the heat exchange copper tube. The low-temperature heat exchange copper tube cools the gas drawn into the installation chamber by the exhaust fan. After the gas temperature is reduced, it passes through the first filter plate and enters the housing, cooling the turn signal lens inside the housing. This effectively improves the cooling effect of the turn signal lens cover. Attached Figure Description
[0021] Figure 1 This is a front three-dimensional structural diagram of a cooling device for injection molding of turn signal lamp covers proposed in this utility model;
[0022] Figure 2 This is a rear-view three-dimensional structural diagram of a cooling device for injection molding of a turn signal lamp cover proposed in this utility model;
[0023] Figure 3 This is a schematic diagram of the main cross-sectional structure of a cooling device for injection molding of turn signal lamp covers proposed in this utility model;
[0024] Figure 4 This is a front sectional view of the cooling mechanism of a cooling device for injection molding of turn signal lamp covers proposed in this utility model;
[0025] Figure 5 This is a bottom sectional view of the cooling mechanism of a cooling device for injection molding of turn signal lamp covers proposed in this utility model;
[0026] In the diagram: 100, housing; 110, first filter plate; 120, mounting chamber; 130, air inlet chamber; 131, filter baffle; 140, second filter plate; 150, mounting bracket; 151, motor; 152, drive rod; 153, exhaust fan; 160, cleaning brush; 200, liquid storage tank; 210, refrigerator; 211, refrigeration pipe; 220, reflux pump; 221, infusion pipe; 230, heat exchange copper pipe. Detailed Implementation
[0027] 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.
[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] This utility model provides a cooling device for injection molding of turn signal covers, which can automatically clean dust from the filter plate, preventing dust from clogging the filter plate and effectively improving the cooling effect on the turn signal cover. Please refer to [link / reference]. Figure 1-5 It includes a shell 100 and a liquid storage tank 200;
[0031] Please refer to it again. Figure 1-5 A first filter plate 110 is fixedly connected to the top of the housing 100. An installation chamber 120 is fixedly connected to the top of the housing 100. An air intake chamber 130 is fixedly connected to the top of the installation chamber 120. A filter baffle 131 is fixedly connected to the inner side of the air intake chamber 130. A second filter plate 140 is inserted into one side of the air intake chamber 130, extending to the inner side of the air intake chamber 130 and fitting snugly against the filter baffle 131. A mounting bracket 150 is fixedly connected to the inner wall of the installation chamber 120. A motor 151 is fixedly connected to the top of the mounting bracket 150. The top end of the power output shaft of the motor 151 is fixedly... A drive rod 152 is fixedly connected to the outside of the drive rod 152, and an exhaust fan 153 is fixedly connected to the outside of the drive rod 152. Two cleaning brushes 160 are fixedly connected to the outside of the drive rod 152. The cleaning brushes 160 are in contact with the second filter plate 140 and the filter baffle 131. The drive rod 152 is rotated by starting the motor 151, which causes the exhaust fan 153 on the drive rod 152 to rotate and perform air extraction. At the same time, when the drive rod 152 rotates, the cleaning brushes 160 installed on the drive rod 152 rotate around the drive rod 152 as the center, so that the cleaning brushes 160 clean the filter baffle 131 and the second filter plate 140.
[0032] In summary, it can automatically clean the dust on the filter plate, preventing the dust from clogging the filter plate;
[0033] Please refer to it again. Figure 1-5The liquid storage tank 200 is located above the shell 100. Specifically, the liquid storage tank 200 is fixedly connected to the upper part of the shell 100 via the mounting chamber 120. A cooler 210 is fixedly connected to one side of the liquid storage tank 200, and a cooling pipe 211 is fixedly connected to one side of the cooler 210. One end of the cooling pipe 211 passes through the liquid storage tank 200 and extends into the inner cavity of the liquid storage tank 200. A reflux pump 220 is fixedly connected to one side of the liquid storage tank 200, and two delivery pipes 221 are fixedly connected to one side of the reflux pump 220. One end of the delivery pipes 221 passes through the liquid storage tank 200 and extends into the inner cavity of the liquid storage tank 200. A heat exchange copper pipe 230 is fixedly connected to one side of the reflux pump 220. By starting the cooler 210, the cooling pipe 211 on the cooler 210 is activated, thus activating the cooling pipe 211. The coolant in the liquid tank 200 is cooled down. Then, the return pump 220 is started so that the return pump 220 sends the coolant into the heat exchange copper tube 230 through the liquid delivery pipe 221 on one side. The low temperature coolant lowers the temperature of the heat exchange copper tube 230. At the same time, the room temperature coolant in the heat exchange copper tube 230 is sent back to the liquid storage tank 200 through the return pump 220 and the coolant is cooled again by the cooling pipe 211 and then flows back into the heat exchange copper tube 230. This cycle is repeated to lower the temperature of the heat exchange copper tube 230. The low temperature heat exchange copper tube 230 cools the gas drawn into the installation chamber 120 by the exhaust fan 153. After the gas temperature is lowered, it passes through the first filter plate 110 and enters the housing 100 to cool the turn signal cover inside the housing 100.
[0034] In summary, this can effectively improve the cooling effect on the turn signal lens.
[0035] In practical use, those skilled in the art start the motor 151 to drive the drive rod 152 to rotate, causing the exhaust fan 153 on the drive rod 152 to rotate and perform air extraction. Simultaneously, as the drive rod 152 rotates, the cleaning brush 160 mounted on it rotates around the drive rod 152, cleaning the filter baffle 131 and the second filter plate 140. The cooler 210 is then started, activating the cooling pipe 211 to cool the coolant in the storage tank 200. Finally, the return pump 220 is started, allowing the return pump to pump coolant through the side delivery pipe 22. 1. Coolant is sent into the heat exchange copper tube 230, so that the low temperature coolant lowers the temperature of the heat exchange copper tube 230. At the same time, the normal temperature coolant in the heat exchange copper tube 230 is sent back to the storage tank 200 through the other side of the liquid delivery pipe 221 by the return pump 220. After being cooled again by the cooling pipe 211, it flows back into the heat exchange copper tube 230. This cycle lowers the temperature of the heat exchange copper tube 230. The low temperature heat exchange copper tube 230 cools the gas drawn into the installation chamber 120 by the exhaust fan 153. After the gas temperature is lowered, it enters the housing 100 through the first filter plate 110 and cools the turn signal cover inside the housing 100.
[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.
Claims
1. A cooling device for injection molding of turn signal lamp covers, characterized in that: The device includes a housing (100) and a liquid storage tank (200), the liquid storage tank (200) being located above the housing (100). A first filter plate (110) is fixedly connected to the top of the housing (100), an installation chamber (120) is fixedly connected to the top of the housing (100), an air inlet chamber (130) is fixedly connected to the top of the installation chamber (120), a filter baffle (131) is fixedly connected to the inner side of the air inlet chamber (130), and a second filter plate (140) is inserted into one side of the air inlet chamber (130).
2. The cooling device for injection molding of turn signal lamp covers according to claim 1, characterized in that: One side of the second filter plate (140) extends to the inside of the air intake chamber (130), and the second filter plate (140) is in contact with the filter baffle (131).
3. The cooling device for injection molding of turn signal lamp covers according to claim 1, characterized in that: The inner wall of the installation chamber (120) is fixedly connected to a mounting frame (150), the top of the mounting frame (150) is fixedly connected to a motor (151), and the top of the power output shaft of the motor (151) is fixedly connected to a drive rod (152).
4. A cooling device for injection molding of turn signal lamp covers according to claim 3, characterized in that: An exhaust fan (153) is fixedly connected to the outside of the drive rod (152), and two cleaning brushes (160) are fixedly connected to the outside of the drive rod (152). The cleaning brushes (160) are in contact with the second filter plate (140) and the filter baffle (131).
5. A cooling device for injection molding of turn signal lamp covers according to claim 1, characterized in that: A cooler (210) is fixedly connected to one side of the liquid storage tank (200), and a cooler pipe (211) is fixedly connected to one side of the cooler (210).
6. A cooling device for injection molding of turn signal lamp covers according to claim 5, characterized in that: One end of the refrigeration pipe (211) passes through the liquid storage tank (200) and extends into the inner cavity of the liquid storage tank (200). A reflux pump (220) is fixedly connected to one side of the liquid storage tank (200), and two infusion pipes (221) are fixedly connected to one side of the reflux pump (220).
7. A cooling device for injection molding of turn signal lamp covers according to claim 6, characterized in that: One end of the infusion tube (221) passes through the liquid storage tank (200) and extends into the inner cavity of the liquid storage tank (200). A heat exchange copper tube (230) is fixedly connected to one side of the reflux pump (220).
Citation Information
Patent Citations
Cooling device for injection molding of automobile side steering lamp shade
CN209699795U