Mould for processing middle defrosting air pipe of air conditioner
By introducing a water-cooled heat dissipation and heat storage mechanism into the processing mold of the air conditioning defrost duct, the problem of continuous power supply required for mold heating and heat dissipation is solved, and efficient and energy-saving mold operation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO TUOSHENG AUTO PARTS CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-12
AI Technical Summary
The existing air conditioning defrost duct processing molds require continuous power supply during the heating and heat dissipation process, resulting in high energy consumption and increased electricity costs.
It employs a cooling mechanism and a heat storage and insulation mechanism, using water pumps and cooling coils for water cooling and heat dissipation, and using hot water for storage and reuse through the heat storage and insulation mechanism to reduce the use of electric heating wires.
It achieves efficient heat dissipation and preheating, reduces energy consumption, and improves processing efficiency and economy.
Smart Images

Figure CN224224331U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of air conditioner defrosting duct processing technology, and specifically relates to a mold for processing air conditioner intermediate defrosting ducts. Background Technology
[0002] In the automotive industry, vehicle driving safety is of paramount importance. When car windows are frosted, the defrosting duct plays a crucial role. The left defrosting duct is used to defrost the left side window of the vehicle, and its processing relies on specific molds.
[0003] The Chinese patent with publication number "CN219006734U" discloses a mold for a left defrosting duct, which consists of a lower mold, an upper mold, a forming component, a support mechanism, a ventilation component, and a one-way ventilation component. In the processing flow, the mold can be preheated and kept warm before casting by using heating wires and a fan to prevent the liquid material from solidifying prematurely in the defrosting duct cavity and ensure processing quality. After casting, the fan can be used to quickly cool and dissipate heat from the raw material in the mold, accelerating the cooling of the left defrosting duct and improving processing efficiency, thus meeting the processing requirements of the left defrosting duct to a certain extent.
[0004] However, the mold has revealed many shortcomings in practical applications. In the heating and heat dissipation process, it relies on heating wires for heating and fans for heat dissipation, and requires continuous power supply throughout the process. This not only increases energy consumption costs, but the high electricity bills under long-term use are not to be underestimated. It can be seen that the overall energy consumption of heating by electric heating wires is relatively large. Utility Model Content
[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a mold for processing the intermediate defrosting air duct of an air conditioner, so as to solve the problem that the existing technology cannot achieve energy-saving preheating during application.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0007] A mold for processing air conditioning intermediate defrosting duct includes a lower mold, an upper mold is provided on the top of the lower mold, the upper mold covers the top of the lower mold, a heat storage and heat preservation mechanism is provided on the upper end of one side of the lower mold, and a cooling mechanism is fixedly connected to the outer surface of the lower mold, the cooling mechanism and the heat storage and heat preservation mechanism are connected.
[0008] The cooling mechanism includes a cooling coil and a water pump. The cooling coil is fixedly installed on the outer surface of the lower mold, and the water pump is fixedly installed on one side of the top of the lower mold. The output end of the water pump is connected to the cooling coil, and the input end of the water pump is fixedly installed with a water inlet pipe.
[0009] As a preferred technical solution, the heat storage and insulation mechanism includes a fixing frame, which is fixedly connected to the top of the lower mold on the side away from the water pump. A tank is fixedly installed on the inner side of the fixing frame. A first solenoid valve is fixedly installed at the input end of the tank. The first solenoid valve is connected to the cooling coil. A drainage group is provided at the bottom of the tank.
[0010] As a preferred technical solution, the drainage assembly includes a second solenoid valve and a third solenoid valve. The second solenoid valve is fixedly connected to the bottom of the tank, and a main drainage pipe is fixedly installed at the bottom of the tank. The third solenoid valve is fixedly installed at the lower end of one side of the lower mold. The input end of the third solenoid valve is connected to the output end of the cooling coil. A secondary drainage pipe is fixedly installed at the output end of the third solenoid valve. The secondary drainage pipe is connected to the main drainage pipe. An electromagnetic exhaust valve is fixedly connected to the top of the tank.
[0011] As a preferred technical solution, both the output end of the main drainage pipe and the input end of the inlet pipe are fixedly equipped with connectors, and the connectors are configured as threaded joints.
[0012] As a preferred technical solution, the heat storage and insulation mechanism further includes an insulation sleeve, which is fitted onto the outer surface of the tank.
[0013] As a preferred technical solution, mounting components are fixedly installed on both sides of the top of the upper mold, and mounting holes are opened at the outer ends of the mounting components.
[0014] As a preferred technical solution, mounting plates are fixedly installed on both sides and the front and rear ends of the lower mold, and mounting holes are also provided on the outer side of the mounting plates, which are countersunk holes.
[0015] In summary, the present invention has the following main advantages:
[0016] First, this device is equipped with a cooling mechanism, which allows for connection to an external water supply hose via a water inlet pipe during operation. During mold forming, the external water supply pipe is connected via a connector. After the upper and lower molds are closed, the water pump is started, and the water pump pumps water into the cooling coil through the water inlet pipe. The water circulates in the coil to cool the lower mold, achieving efficient heat dissipation and accelerating the forming of the product inside the mold.
[0017] Secondly, this device incorporates a heat storage and insulation mechanism. During cooling operations, four solenoid valves are opened, and a water pump supplies water. The water is heated by heat exchange in the lower mold and flows into the tank. Once the tank is full of hot water, two solenoid valves are closed. In the initial cooling stage, the high-temperature hot water is collected and insulated by an insulation jacket. After heat storage is complete, the tank is sealed. When draining water, the third solenoid valve is opened. After processing, preheating is required. The water in the cooling coil is drained, the third solenoid valve is closed, and the first solenoid valve is opened. The hot water in the tank flows back to the cooling coil to preheat the lower mold, reducing energy consumption and improving practicality. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the rear view structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the proximity heat storage and insulation mechanism of this utility model;
[0021] Figure 4 This is a bottom view of the structure of this utility model.
[0022] Reference numerals in the attached drawings: 1. Lower mold; 2. Upper mold; 3. Heat storage and insulation mechanism; 31. Fixing frame; 32. Tank body; 33. First solenoid valve; 34. Drainage assembly; 341. Third solenoid valve; 342. Second solenoid valve; 343. Main drainage pipe; 344. Secondary drainage pipe; 35. Insulation sleeve; 4. Cooling mechanism; 41. Cooling coil; 42. Water inlet pipe; 43. Water pump; 5. Connector; 6. Mounting component; 7. Mounting plate; 8. Mounting hole. Detailed Implementation
[0023] Example
[0024] refer to Figures 1 to 4 This embodiment of a mold for processing air conditioning intermediate defrosting duct includes a lower mold 1, an upper mold 2 is provided on the top of the lower mold 1, the upper mold 2 covers the top of the lower mold 1, a heat storage and heat preservation mechanism 3 is provided on the upper end of one side of the lower mold 1, and a cooling mechanism 4 is fixedly connected to the outer surface of the lower mold 1, and the cooling mechanism 4 and the heat storage and heat preservation mechanism 3 are connected.
[0025] Cooling mechanism 4 includes a cooling coil 41 and a water pump 43. The cooling coil 41 is fixedly installed on the outer surface of the lower mold 1, and the water pump 43 is fixedly installed on the top side of the lower mold 1. The output end of the water pump 43 is connected to the cooling coil 41, and the input end of the water pump 43 is fixedly installed with a water inlet pipe 42. When the mold is working, the cooling mechanism 4 on the outer surface of the lower mold 1 plays an important role. The water inlet pipe 42 is connected to an external water source. When the mold enters the working state, the water pump 43 is started and runs. Its input end is connected to the water inlet pipe 42. External water is drawn out and pumped into the cooling coil 41 at the output end. The cooling coil 41 surrounds the outer surface of the lower mold 1. The water circulates in the coil and carries away the heat of the lower mold 1 through heat exchange, thereby cooling the lower mold 1 and creating suitable temperature conditions for the forming of the defrosting air duct inside the mold. At the same time, the cooling mechanism 4 is connected to the heat storage and insulation mechanism 3 on the upper side of the lower mold 1. The changes in the state of the water and the heat transfer during the cooling process work together with the heat storage and insulation mechanism 3 to ensure the efficient and stable operation of the mold.
[0026] refer to Figures 1-4 The heat storage and insulation mechanism 3 includes a fixed frame 31, which is fixedly connected to the top of the lower mold 1 on the side away from the water pump 43. A tank 32 is fixedly installed on the inner side of the fixed frame 31. A first solenoid valve 33 is fixedly installed at the input end of the tank 32. The first solenoid valve 33 is connected to the cooling coil 41. A drainage group 34 is provided at the bottom of the tank 32. When the heat storage and insulation mechanism 3 of the mold for processing air conditioning intermediate defrost duct is running, the fixed frame 31 on the top of the lower mold 1 on the side away from the water pump 43 plays a supporting role. The tank 32 installed on its inner side is a key component. During the mold cooling process, the cooling coil 41 absorbs the heat of the lower mold 1. Water, powered by the water pump 43, flows into the tank 32 through the first solenoid valve 33 connected to the cooling coil 41. When hot water needs to be stored, the first solenoid valve 33 remains open, allowing hot water to continuously flow into the tank 32. When the tank 32 stores enough hot water, the first solenoid valve 33 can be closed to prevent hot water from flowing out. The drain assembly 34 at the bottom of the tank 32 plays a role in draining the hot water in the tank when it is necessary to use it for mold preheating or other subsequent operations. By controlling the opening of the drain assembly 34, the hot water in the tank can be drained in a planned manner. Working in coordination with the cooling mechanism 4, it achieves reasonable control of the mold temperature and effective utilization of heat.
[0027] refer to Figures 2-4 The drainage assembly 34 includes a second solenoid valve 342 and a third solenoid valve 341. The second solenoid valve 342 is fixedly connected to the bottom of the tank 32, and a main drain pipe 343 is fixedly installed at the bottom of the tank 32. The third solenoid valve 341 is fixedly installed on the lower side of the lower mold 1. The input end of the third solenoid valve 341 is connected to the output end of the cooling coil 41, and a secondary drain pipe 344 is fixedly installed at the output end of the third solenoid valve 341. The secondary drain pipe 344 is connected to the main drain pipe 343. An electromagnetic exhaust valve is fixedly connected to the top of the tank 32. When the drainage assembly 34 of this mold for processing intermediate defrosting ducts of an air conditioner is working, the second solenoid valve 342 is opened when it is necessary to drain the hot water in the tank 32 for mold preheating or other operations. 42. The hot water in tank 32 will flow out through the drain pipe 343. At the same time, if the water in the cooling coil 41 needs to be drained, the third solenoid valve 341 can be opened. The water in the cooling coil 41 will flow into the drain pipe 343 through the drain auxiliary pipe 344 and be discharged together with the water discharged from tank 32. During the drainage process, gas may be generated in tank 32 due to pressure changes. At this time, the electromagnetic exhaust valve will play a role. When the pressure in the tank reaches the set value, the electromagnetic exhaust valve will automatically open to discharge the excess gas in the tank, balance the pressure in the tank, ensure the smooth drainage process, avoid the accumulation of gas affecting the drainage efficiency and damage to tank 32, and ensure the coordinated operation of the heat storage and insulation mechanism 3 and the cooling mechanism 4 and the normal operation of the mold.
[0028] refer to Figures 1-3Both the output end of the drain pipe 343 and the input end of the inlet pipe 42 are fixedly equipped with connectors 5, which are threaded joints. The heat storage and insulation mechanism 3 also includes an insulation sleeve 35, which is fitted onto the outer surface of the tank body 32. Mounting parts 6 are fixedly installed on both sides of the top of the upper mold 2, and mounting holes 8 are opened at the outer ends of the mounting parts 6. Mounting plates 7 are fixedly installed on both sides and at both ends of the lower mold 1, and mounting holes 8 are also opened on the outer sides of the mounting plates 7. The mounting holes 8 are countersunk holes. In this mold for processing air conditioning intermediate defrosting ducts, the drain pipe 343 and the inlet pipe 42 are conveniently connected to the external pipes through the threaded joint connectors 5. The threaded connection method can ensure a tight connection and prevent water from entering the pipe. Leakage is prevented, and installation and disassembly are convenient, facilitating equipment maintenance and pipeline replacement. The heat storage and insulation mechanism 3 has an insulation sleeve 35 on the outside of the tank 32, which can effectively reduce the heat exchange between the hot water in the tank 32 and the external environment, maintain the temperature of the hot water in the tank, reduce heat loss, improve the heat energy utilization rate, and store heat for preheating the mold. The mounting parts 6 on both sides of the top of the upper mold 2 and the mounting plates 7 at the front and rear ends of both sides of the lower mold 1 are all provided with countersunk holes. These countersunk holes can be used to install bolts and other connecting parts. The mold is fastened to the external equipment or fixed bracket by passing the bolts through the countersunk holes. The countersunk hole design allows the bolt head to sink into the hole, ensuring that the installation surface is flat, which does not affect the normal operation of the mold and enhances the stability and firmness of the mold installation.
[0029] Operating principle and advantages: This device is equipped with a cooling mechanism 4, which allows it to be connected to an external water supply hose via a water inlet pipe 42 during operation. During the mold forming process, the water inlet pipe 42 is connected to the external water supply pipe via a connector 5. After the mold closing operation of the upper mold 2 and the lower mold 1 is completed, the water pump 43 is started. The water pump 43 pumps water, which flows into the cooling coil 41 through the water inlet pipe 42. The cooling water circulates in the cooling coil 41 to cool the lower mold 1, thereby achieving efficient heat dissipation and accelerating the forming process of the product in the mold.
[0030] This device, by incorporating a heat storage and insulation mechanism 3, allows the opening of the first solenoid valve 33, the second solenoid valve 342, the third solenoid valve 341, and the fourth solenoid valve during the cooling phase. Water is supplied via pump 43, and the water absorbs heat at the lower mold 1, transforming into hot water which then flows into the tank 32. Once the tank 32 is full of hot water, the first solenoid valve 33 and the second solenoid valve 342 are closed. In the initial cooling phase, the water temperature after circulation cooling is relatively stable and high. At this time, this high-temperature hot water is collected in the tank 32, and the insulation sleeve 35 on the outside of the tank 32... The device plays an auxiliary role in heat preservation. After heat storage is completed, the first solenoid valve 33 and the second solenoid valve 342 are closed to seal the tank 32, and the third solenoid valve 341 is opened for drainage. When the mold needs to be preheated after processing, the water in the cooling coil 41 is drained, the third solenoid valve 341 is closed, and the first solenoid valve 33 is opened. The hot water inside the tank 32 will then flow back to the cooling coil 41 to preheat the lower mold 1 again. This design enables the device to have a heat storage function, abandons the traditional electric heating wire preheating method, significantly reduces energy consumption, makes operation more convenient and efficient, and improves the overall practicality and economy.
Claims
1. A mold for processing intermediate defrosting ducts in air conditioners, comprising a lower mold (1), characterized in that: The lower mold (1) is provided with an upper mold (2) on its top. The upper mold (2) covers the top of the lower mold (1). A heat storage and heat preservation mechanism (3) is provided on the upper side of one side of the lower mold (1). A cooling mechanism (4) is fixedly connected to the outer surface of the lower mold (1). The cooling mechanism (4) and the heat storage and heat preservation mechanism (3) are connected. The cooling mechanism (4) includes a cooling coil (41) and a water pump (43). The cooling coil (41) is fixedly installed on the outer surface of the lower mold (1). The water pump (43) is fixedly installed on the top side of the lower mold (1). The output end of the water pump (43) is connected to the cooling coil (41). The input end of the water pump (43) is fixedly installed with a water inlet pipe (42).
2. The mold for processing intermediate defrosting ducts in air conditioners according to claim 1, characterized in that: The heat storage and insulation mechanism (3) includes a fixing frame (31), which is fixedly connected to the top of the lower mold (1) on the side away from the water pump (43). A tank (32) is fixedly installed on the inner side of the fixing frame (31). A first solenoid valve (33) is fixedly installed at the input end of the tank (32). The first solenoid valve (33) is connected to the cooling coil (41). A drainage group (34) is provided at the bottom of the tank (32).
3. The mold for processing intermediate defrosting ducts in air conditioners according to claim 2, characterized in that: The drainage assembly (34) includes a second solenoid valve (342) and a third solenoid valve (341). The second solenoid valve (342) is fixedly connected to the bottom of the tank (32). A main drain pipe (343) is fixedly installed at the bottom of the tank (32). The third solenoid valve (341) is fixedly installed at the lower end of one side of the lower mold (1). The input end of the third solenoid valve (341) is connected to the output end of the cooling coil (41). A secondary drain pipe (344) is fixedly installed at the output end of the third solenoid valve (341). The secondary drain pipe (344) is connected to the main drain pipe (343). An electromagnetic exhaust valve is fixedly connected to the top of the tank (32).
4. The mold for processing intermediate defrosting ducts in air conditioners according to claim 3, characterized in that: Both the output end of the main drainage pipe (343) and the input end of the inlet pipe (42) are fixedly installed with connectors (5), which are threaded joints.
5. A mold for processing intermediate defrosting ducts in air conditioners according to claim 2, characterized in that: The heat storage and insulation mechanism (3) also includes an insulation sleeve (35), which is fitted onto the outer surface of the tank body (32).
6. The mold for processing intermediate defrosting ducts in air conditioners according to claim 1, characterized in that: Mounting components (6) are fixedly installed on both sides of the top of the upper mold (2), and mounting holes (8) are provided at the outer ends of the mounting components (6).
7. A mold for processing intermediate defrosting ducts in air conditioners according to claim 6, characterized in that: Mounting plates (7) are fixedly installed on both sides and at both ends of the lower mold (1). Mounting holes (8) are also provided on the outer side of the mounting plates (7). The mounting holes (8) are countersunk holes.