High-efficiency water-electricity separation type mold temperature controller

Abstract

The utility model discloses a high-efficiency water-electricity separation type mold temperature controller, which comprises a water inlet pipeline, a water pump and a water outlet pipeline, a heating assembly is connected in series on the water inlet pipeline, the heating assembly comprises a heating shell, a water diversion box, a water catchment box and a snakelike heating pipeline are arranged in the heating shell, and the snakelike heating pipeline is arranged between the water diversion box and the water catchment box and is communicated with the water diversion box and the water catchment box. The water diversion box and the water catchment box are respectively communicated with the upstream and downstream of the water inlet pipeline, the snakelike heating pipeline comprises a plurality of parallel straight pipe sections and bent pipe sections connected with the opposite end parts of the straight pipe sections, so that a single flow path through which a heat transfer medium sequentially flows through each straight pipe section is formed; an electric heating element is wound or laid on each straight pipe section, and the electric heating elements are physically isolated from the heat transfer medium in the straight pipe sections. The heat exchanger has the advantages of compact structure, large heat transfer area and high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold temperature controller technology, and in particular to a high-efficiency water-electricity separation mold temperature controller. Background Technology

[0002] The working principle of a mold temperature controller is to circulate a liquid (usually water or oil) at a constant temperature into the molding die to maintain the temperature of the die within a certain range.

[0003] Currently, mold temperature controllers on the market can be mainly divided into two types based on their heating method: immersion heating and water-electricity separation heating. Immersion heating mold temperature controllers typically immerse one or more electric heating elements directly in the heat transfer medium to be heated. This structure poses a safety hazard of electric leakage. Water-electricity separation heating mold temperature controllers, on the other hand, do not have direct contact between the electric heating elements and the heat transfer medium, making them safer. However, while pursuing safety, existing water-electricity separation structures generally suffer from low heating efficiency and slow response speed. For example, a common design uses a single, relatively thick pipe as the flow channel, and then wraps heating wires or attaches additional heating fins to the outer wall of the pipe. This structure has a limited heat transfer area: relying solely on the outer surface of a single pipe for heat exchange, its total heat transfer area is relatively limited, resulting in insufficient total heat exchange per unit time and a slow heating rate.

[0004] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a water-electricity separation mold temperature controller with a compact structure, large heat transfer area and high efficiency.

[0006] This utility model is achieved through the following technical solution:

[0007] To solve the above-mentioned technical problems, this utility model provides a high-efficiency water-electricity separation mold temperature controller, including an inlet pipe, a water pump, and an outlet pipe. A heating component is connected in series on the inlet pipe. The heating component includes a heating shell, and the heating shell is provided with a water distribution box, a water collection box, and a serpentine heating pipe located between and connecting the two. The water distribution box and the water collection box are respectively connected to the upstream and downstream of the inlet pipe. The serpentine heating pipe includes multiple parallel straight pipe sections and bends connecting the opposite ends of the straight pipe sections, thereby forming a single flow path through which the heat transfer medium flows sequentially through each straight pipe section. Each straight pipe section is wound or covered with an electric heating element, which is physically isolated from the heat transfer medium in the straight pipe section.

[0008] In order to further solve the technical problem to be solved by this utility model, this utility model provides a high-efficiency water-electricity separation mold temperature controller, wherein the water distribution box is provided with a water inlet quick connector and the water collection box is provided with a water outlet quick connector, and both the water inlet quick connector and the water outlet quick connector pass through and extend out of the heating shell.

[0009] To further address the technical problems to be solved by this utility model, this utility model provides a high-efficiency water-electricity separation mold temperature controller in which the water inlet quick connector is located at the upper part of the water distribution box, the water outlet quick connector is located at the bottom of the water collection box, and the water inlet quick connector is higher than the water outlet quick connector.

[0010] To further address the technical problems to be solved by this utility model, this utility model provides a high-efficiency water-electricity separation mold temperature controller in which at least one electrical box is detachably connected to the heating shell, and the electrical connection end of the electric heating element extends into and is accommodated in the electrical box to be connected to the power supply.

[0011] To further address the technical problems addressed by this invention, a high-efficiency water-electricity separation mold temperature controller is provided, which also includes a control system. A water temperature sensor is installed on the inlet or outlet water pipe. The water pump, electric heating element, and water temperature sensor are all connected to the control system. The control system is configured to control the heating power or on / off state of the electric heating element and / or control the operating state of the water pump based on the detection signal from the water temperature sensor.

[0012] In order to further solve the technical problems to be solved by this utility model, the electric heating element in the high-efficiency water-electricity separation mold temperature controller provided by this utility model is an electric heating wire or an electric heating belt.

[0013] In order to further solve the technical problems to be solved by this utility model, the present utility model provides a high-efficiency water-electricity separation mold temperature controller in which the electric heating elements on different straight pipe sections are independent of each other.

[0014] In order to further solve the technical problems to be solved by this utility model, the present utility model provides a high-efficiency water-electricity separation mold temperature controller, wherein the inner wall or outer wall of the heating shell is provided with a heat insulation layer.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This invention employs a serpentine heating pipe composed of multiple physically parallel straight pipe sections connected in series, with electric heating elements installed on the outer wall of each straight pipe section. Firstly, the serpentine structure accommodates an extremely long flow path within a compact space, significantly increasing the total heat exchange area and extending the heating time of the medium, thus achieving efficient and rapid heating. Secondly, the electric heating elements are placed externally within the pipe, transferring heat through the pipe wall, fundamentally achieving water-electricity separation and completely eliminating the risk of electric leakage associated with traditional immersion heating. Therefore, this invention solves the technical problem of balancing safety and efficiency in existing technologies, providing the mold temperature controller with significant advantages such as rapid heating, compact structure, and high thermal energy utilization while ensuring absolute safety. Attached Figure Description

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0019] Figure 2 This is the second three-dimensional structural schematic diagram of this utility model;

[0020] Figure 3 This is one of the three-dimensional structural diagrams of the heating component;

[0021] Figure 4 This is the second three-dimensional structural diagram of the heating component;

[0022] Figure 5 This is a cross-sectional view of the heating assembly. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Please see Figures 1 to 5 This embodiment discloses a high-efficiency water-electricity separation mold temperature controller. The controller constructs a loop for circulating a heat transfer medium (such as water or heat transfer oil), mainly including an inlet pipe 1, a water pump 2, and an outlet pipe 3. The water pump 2 serves as a power source, driving the heat transfer medium to circulate throughout the loop, thereby delivering heat to the external mold or equipment requiring temperature control.

[0025] The core of this embodiment lies in the heating component 4 installed on the water inlet pipe 1. For example... Figures 3-5 As shown, the heating assembly 4 includes a heating housing 41, and a serpentine heating pipe 44 is provided inside the heating housing 41.

[0026] Specifically, the serpentine heating pipe 44 is not a simple bend, but rather consists of multiple spatially parallel straight pipe sections 441, and bends 442 connecting these straight pipe sections at their opposite ends. This structure allows for a very long pipe within a limited shell space, forming a single, continuous flow path. The heat transfer medium enters from the inlet and must flow sequentially through each straight pipe section 441 before exiting from the outlet. This design significantly extends the residence time of the heat transfer medium in the heating zone and substantially increases the total heat exchange area, thereby achieving high-efficiency heating.

[0027] like Figure 4 and Figure 5 As shown, to achieve complete "water and electricity separation" and eliminate the risk of leakage, the heating method in this embodiment is as follows: Electric heating elements 45 are wound or laid on the outer wall of each straight pipe section 441. The electric heating elements 45 preferably have flexible heating wires or heating strips, which are tightly attached to the outer surface of the straight pipe section 441. When the electric heating elements 45 are energized and generate heat, the heat is conducted through the pipe wall of the straight pipe section 441 to the internally flowing heat transfer medium. Since the electric heating elements 45 are always located outside the pipe, they are physically isolated from the internal heat transfer medium by the pipe wall, thus structurally eliminating the possibility of leakage and ensuring absolute operational safety.

[0028] To further optimize control precision and heating efficiency, in this embodiment, the electric heating elements 45 installed on each straight pipe section 441 are preferably independent units, which can be controlled individually or in groups under the command of the control system. For example, heating can be turned on only for the first few pipe sections according to the inlet temperature and target temperature of the medium, or different heating powers can be applied to all pipe sections to achieve more precise temperature step control and avoid overshoot and energy waste.

[0029] To facilitate the installation and maintenance of the entire heating assembly 4, such as Figure 2 As shown, a quick-connect fitting 46 for water inlet and a quick-connect fitting 47 for water outlet are respectively installed at the inlet and outlet of the serpentine heating pipe 44. Both quick-connect fittings 46 and 47 pass through the wall of the heating shell 41 and extend outward, so that the pipe connection can be completed by direct insertion or threading without complicated welding or wrapping of PTFE tape during on-site installation, which greatly shortens the downtime for installation and maintenance.

[0030] More specifically, such as Figure 2 As shown, the quick-connect water inlet 46 is located at the top of the heating assembly 4, while the quick-connect water outlet 47 is located at the bottom, meaning the inlet is higher than the outlet. This layout facilitates gas venting and is typically used in conjunction with the exhaust valve located at a higher position in the mold temperature controller.

[0031] Please see Figure 3To ensure safe and standardized management of the electrical connections of the electric heating elements 45, at least one electrical box 48 is detachably connected to one or both sides of the heating housing 41. All electrical connection terminals (e.g., power cords) of the electric heating elements 45 extend into the corresponding electrical box 48 and are connected to the power supply inside the box. This design isolates the high-voltage components from the high-temperature heating housing 41 body, provides a clean and safe wiring space, facilitates maintenance, and prevents accidental contact.

[0032] This embodiment also includes a complete control system (not shown in the figure). A water temperature sensor is installed on the inlet pipe 1 or the outlet pipe 3 to monitor the temperature of the heat transfer medium in real time. The water pump 2, each electric heating element 45, and the water temperature sensor are all electrically connected to the control system. During operation, the control system continuously acquires the detection signal from the water temperature sensor and compares it with the target temperature set by the user. Then, it controls the heating power or on / off state of the electric heating element 45 and / or controls the operating state of the water pump 2 (e.g., start / stop or speed adjustment) through a preset algorithm (e.g., PID algorithm), thereby achieving rapid, stable, and precise closed-loop control of the mold temperature.

[0033] Furthermore, to maximize energy efficiency, the inner or outer wall of the heating housing 41 is preferably provided with an additional thermal insulation layer. This thermal insulation layer can effectively block heat loss to the surrounding environment, concentrating more energy on the heating medium, thereby shortening the heating time and reducing energy consumption. At the same time, it can also reduce the outer surface temperature of the heating housing 41, avoiding adverse effects on other nearby electronic components and preventing accidental burns to operators.

[0034] In summary, this embodiment, through its unique serpentine heating pipe 44 design and external electric heating element 45, successfully achieves complete water-electricity separation and ensures operational safety. At the same time, it significantly improves heating efficiency and response speed by increasing the heat exchange area and extending the heat exchange time, thereby enhancing the product's ease of use and safety. It has significant practical value and represents a significant advancement.

Claims

1. A high-efficiency water-electricity separation mold temperature controller, characterized in that: The system includes an inlet pipe (1), a water pump (2), and an outlet pipe (3). A heating assembly (4) is connected in series on the inlet pipe (1). The heating assembly (4) includes a heating shell (41). The heating shell (41) is provided with a water distribution box (42), a water collection box (43), and a serpentine heating pipe (44) located between and connecting the two. The water distribution box (42) and the water collection box (43) are respectively connected to the upstream and downstream of the inlet pipe (1). The serpentine heating pipe (44) includes multiple parallel straight pipe sections (441) and bends (442) connecting the opposite ends of the straight pipe sections (441), thereby forming a single flow path through which the heat transfer medium flows sequentially through each straight pipe section (441). Each straight pipe section (441) is wrapped or laid with an electric heating element (45). The electric heating element (45) is physically isolated from the heat transfer medium in the straight pipe section (441).

2. The high-efficiency water-electricity separation mold temperature controller according to claim 1, characterized in that: The water distribution box (42) is provided with a quick-connect water inlet connector (46), and the water collection box (43) is provided with a quick-connect water outlet connector (47). Both the quick-connect water inlet connector (46) and the quick-connect water outlet connector (47) pass through and extend out of the heating shell (41).

3. A high-efficiency water-electricity separation mold temperature controller according to claim 2, characterized in that: The water inlet quick connector (46) is located at the top of the water distribution box (42), and the water outlet quick connector (47) is located at the bottom of the water collection box (43). The water inlet quick connector (46) is higher than the water outlet quick connector (47).

4. A high-efficiency water-electricity separation mold temperature controller according to claim 1, characterized in that: At least one electrical box (48) is detachably connected to the heating housing (41), and the electrical connection end of the electric heating element (45) extends into and is accommodated in the electrical box (48) to be connected to the power supply.

5. A high-efficiency water-electricity separation mold temperature controller according to claim 1, characterized in that: It also includes a control system. A water temperature sensor is provided on the water inlet pipe (1) or water outlet pipe (3). The water pump (2), the electric heating element (45), and the water temperature sensor are all connected to the control system. The control system is configured to control the heating power or on / off state of the electric heating element (45) and / or control the operating state of the water pump (2) according to the detection signal of the water temperature sensor.

6. A high-efficiency water-electricity separation mold temperature controller according to claim 1, characterized in that: The electric heating element (45) is an electric heating wire or an electric heating strip.

7. A high-efficiency water-electricity separation mold temperature controller according to claim 1, characterized in that: The electric heating elements (45) on different straight pipe sections (441) are independent of each other.

8. A high-efficiency water-electricity separation mold temperature controller according to claim 1, characterized in that: The inner or outer wall of the heating shell (41) is provided with a heat insulation layer.

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