A heating plate with positive and negative cooling

Abstract

The utility model discloses a kind of heating panels of positive and negative cooling, belong to heat exchange equipment technical field, including upper, lower hot cold plate, A mouth, B mouth, transport component and monitoring component, transport component includes first, second pipeline and third, fourth pipeline respectively intercommunication hot cold plate both sides, monitoring component includes electric valve A, B, C, D, A mouth is respectively intercommunication electric valve B and C's inlet, the outlet of electric valve B intercommunication first, second pipeline, the outlet of electric valve C intercommunication third, fourth pipeline, first, second pipeline flows out and is connected with the inlet of electric valve A, third, fourth pipeline flows out and is connected with the inlet of electric valve D, the outlet of electric valve A and D is jointly connected with B mouth. By controlling the switch combination of four electric valves, the cooling liquid can be realized in hot cold plate forward or reverse flow, solve the problem that the plate surface temperature difference is too large in prior art due to one-way cooling, significantly improve the uniformity of heat exchange, and temperature control efficiency is high, degree of automation is high.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, and in particular to a heating plate with forward and reverse cooling. Background Technology

[0002] In modern industrial production and scientific research, heating plates, as a key temperature control device, are widely used in various applications requiring precise temperature control, such as material curing, hot pressing, and semiconductor testing. To maintain the temperature stability of the heating plate during operation, or to cool it down quickly and evenly after heating, cooling channels are usually designed inside the plate to exchange heat by introducing a coolant (such as cooling water).

[0003] Currently, most conventional heating plate cooling structures employ a simple unidirectional flow pattern. That is, the coolant enters the flow channel through a fixed inlet, flows along a predetermined path within the plate, absorbs heat, and finally exits through a fixed outlet. In this structure, an inherent physical phenomenon is difficult to avoid: the coolant temperature continuously rises during flow. This results in the plate surface temperature near the inlet area always being significantly lower than the plate surface temperature near the outlet area, thus creating a fixed, non-uniform temperature gradient across the entire plate surface.

[0004] As industrial technology demands ever higher product precision and process stability, the problem of temperature non-uniformity caused by unidirectional cooling is becoming increasingly prominent. For example, in precision molding processes, uneven temperatures can lead to internal stress and warping deformation in the parts, affecting the final product's yield. Therefore, overcoming the limitations of traditional unidirectional cooling structures and achieving more uniform and efficient cooling of the heating plate has become a pressing technical problem to be solved in this field.

[0005] Therefore, this invention proposes a heating plate with both forward and reverse cooling to address the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a heating plate with both forward and reverse cooling, which aims to improve the problems of uneven heat exchange and excessive temperature difference on the plate surface caused by unidirectional cooling in the existing technology.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a heating plate with positive and negative cooling, comprising: an upper hot and cold plate, a lower hot and cold plate, an A port and a B port, and further comprising a transport component and a monitoring component;

[0008] The transport assembly includes a first pipe, a second pipe, a third pipe, and a fourth pipe. The first and second pipes are fluidly connected to one side of the upper and lower hot and cold plates, respectively, and the third and fourth pipes are fluidly connected to the opposite side of the upper and lower hot and cold plates, respectively.

[0009] The monitoring component includes electric valves A, B, C, and D. Port A is connected to the inlet of electric valve B and the inlet of electric valve C. The outlet of electric valve B is connected to the first pipe and the second pipe. The outlet of electric valve C is connected to the third pipe and the fourth pipe. The first pipe and the second pipe are connected to the inlet of electric valve A after flowing out of the upper and lower hot and cold plates. The third pipe and the fourth pipe are connected to the inlet of electric valve D after flowing out of the upper and lower hot and cold plates. The outlets of electric valve A and electric valve D are both connected to port B.

[0010] Preferably, the monitoring component is also electrically connected to a temperature monitoring element disposed on the surface of the upper hot and cold plate and the lower hot and cold plate.

[0011] Preferably, it also includes a connecting assembly for connecting the pipeline, a valve pipe connected to the valve outlet of the monitoring assembly, and a water outlet pipe.

[0012] Preferably, the connecting assembly includes an upper connecting ring and a lower connecting ring, which are detachably sleeved on the outer wall of the connection between the valve pipe and the outlet pipe.

[0013] Preferably, the connecting assembly further includes a sealing ring, which is fixed to the inner walls of the upper connecting ring and the lower connecting ring and is embedded in the mating gap between the valve pipe and the outlet pipe during connection.

[0014] Preferably, the connecting assembly further includes a screw that passes through the upper connecting ring and screws into the lower connecting ring to lock and fix the upper connecting ring and the lower connecting ring.

[0015] Preferably, the first pipe is used to deliver coolant to the upward-facing hot and cold plate, and the second pipe is used to deliver coolant to the downward-facing hot and cold plate.

[0016] Preferably, the third pipe is used to discharge coolant from the upper hot plate, and the fourth pipe is used to discharge coolant from the lower hot plate.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by setting a monitoring component consisting of multiple electric valves and a specific transport component pipeline, the coolant is made to flow in both directions in the upper and lower hot and cold plates, which solves the problem of fixed temperature difference and uneven heat exchange on the plate surface caused by unidirectional cooling in the prior art, and achieves the effect of greatly improving temperature uniformity.

[0019] 2. This utility model uses a connecting assembly consisting of upper and lower connecting rings, a sealing ring, and screws to fix the valve pipe and the water outlet pipe, which solves the problems of complex traditional pipe connections and inconvenient installation and maintenance, and achieves the effects of quick assembly and disassembly, reliable connection, and improved maintenance convenience. Attached Figure Description

[0020] Figure 1 This is a perspective view of a heating plate with both positive and negative cooling according to the present invention.

[0021] Figure 2 This is a schematic diagram of the electric valve D of a heating plate with positive and negative cooling proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the screws of a heating plate with both positive and negative cooling according to the present invention.

[0023] Figure 4 This is a schematic diagram of the sealing ring of a heating plate with forward and reverse cooling proposed in this utility model.

[0024] Legend:

[0025] 1. Upper hot and cold plate; 2. Lower hot and cold plate; 3. Port A; 4. Port B; 5. Monitoring component; 501. Electric valve A; 502. Electric valve B; 503. Electric valve C; 504. Electric valve D; 6. Transport component; 601. First pipe; 602. Second pipe; 603. Third pipe; 604. Fourth pipe; 7. Water outlet pipe; 8. Connecting component; 801. Sealing ring; 802. Valve pipe; 803. Upper connecting ring; 804. Lower connecting ring; 805. Screw. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1-4This utility model provides a heating plate with forward and reverse cooling, which aims to solve the technical problem in the prior art where the cooling device can only allow water to enter in one direction, resulting in uneven heat exchange on the plate surface and a large temperature difference.

[0028] Specifically, it includes an upper hot and cold plate 1, a lower hot and cold plate 2, port A 3, and port B 4. The upper hot and cold plate 1 and the lower hot and cold plate 2 are the core working components that carry the heat source and carry out heat exchange. Port A 3 serves as the unified inlet for the coolant to enter the entire device, while port B 4 serves as the unified outlet for the coolant to flow out of the entire device after heat exchange. Port A 3 and port B 4 are located outside the device to facilitate connection to an external cooling circulation system.

[0029] It also includes a transport component 6 and a monitoring component 5. The transport component 6 provides a physical channel for the delivery and recovery of coolant to the hot plate. The transport component 6 includes a first pipe 601, a second pipe 602, a third pipe 603 and a fourth pipe 604. The first pipe 601 and the second pipe 602 are fluidly connected to one side of the upper hot plate 1 and the lower hot plate 2, respectively, as a set of parallel flow channel inlets or outlets. The third pipe 603 and the fourth pipe 604 are fluidly connected to the opposite side of the upper hot plate 1 and the lower hot plate 2, respectively, as another set of parallel flow channel inlets or outlets. This symmetrical pipeline layout is the structural basis for realizing bidirectional flow.

[0030] Monitoring component 5 is the control center for intelligent flow direction switching. It includes electric valves A501, B502, C503, and D504. These four electric valves form a fluid path selection matrix through a combination switch. Specifically, the flow path branch at port A3 connects to the inlet of electric valve B502 and the inlet of electric valve C503, providing a coolant source for both cooling modes. The outlet of electric valve B502 connects to the first pipe 601 and the second pipe 602, thus controlling whether coolant enters one side of the hot plate. The outlet of electric valve C503 connects to the third pipe 603 and the fourth pipe 604. This controls whether the coolant enters the other side of the hot and cold plates. After heat exchange is completed, the coolant flowing out from the upper hot and cold plate 1 and the lower hot and cold plate 2 merges through the first pipe 601 and the second pipe 602 and connects to the inlet of the electric valve A501. At the same time, it merges through the third pipe 603 and the fourth pipe 604 and connects to the inlet of the electric valve D504. Finally, the outlet of the electric valve A501 and the outlet of the electric valve D504 are connected to port B4 to discharge the coolant. Through this precise pipeline and valve layout, the flow direction of the coolant inside the upper hot and cold plate 1 and the lower hot and cold plate 2 can be flexibly changed by controlling the switching combination of the four electric valves.

[0031] To achieve closed-loop intelligent control of the cooling process, the monitoring component 5 is also electrically connected to temperature monitoring elements disposed on the surfaces of the upper hot and cold plate 1 and the lower hot and cold plate 2. These temperature monitoring elements can be thermocouples or thermistors. Multiple temperature monitoring elements can be arrayed and distributed in key positions on the surfaces of the upper hot and cold plate 1 and the lower hot and cold plate 2, such as the center, four corners, and areas near the coolant inlet and outlet. Through this multi-point layout, the control system can obtain a detailed temperature distribution map of the entire plate surface in real time. When the temperature in a local area is detected to be too high, the control system can issue a command to adjust the working state of the electric valve, or switch the cooling mode, or adjust the valve opening to change the local flow rate, thereby achieving precise and proactive adjustment of the plate surface temperature uniformity, greatly improving the temperature control accuracy and automation level.

[0032] To achieve quick and reliable connection and disassembly of the valve and external pipeline, facilitating installation and subsequent maintenance, the system also includes a connecting assembly 8 for connecting the pipeline, a valve pipe 802 connected to the valve outlet of the monitoring assembly 5, and a water outlet pipe 7. The valve pipe 802 can be a section extending from the electric valve A501 or the electric valve D504, while the water outlet pipe 7 connects to the final port B 4 or the external pipeline system. The function of the connecting assembly 8 is to securely and sealably connect the two independent pipeline sections, the valve pipe 802 and the water outlet pipe 7. The connecting assembly 8 includes an upper connecting ring 803 and a lower connecting ring 804. A sealing ring 801 for providing a sealing function is fixed on the inner wall of the upper connecting ring 803 and the lower connecting ring 804. The sealing ring 801 is made of an elastic material, such as nitrile rubber or silicone rubber. During installation, firstly... Align the ports of valve pipe 802 and outlet pipe 7, then close the upper connecting ring 803 and lower connecting ring 804 (e.g., two semi-annular shells) from both sides and detachably fit them onto the outer wall of the connection between valve pipe 802 and outlet pipe 7. At this time, the sealing ring 801 on the inner wall is squeezed and embedded in the mating gap between valve pipe 802 and outlet pipe 7, effectively preventing coolant leakage. Subsequently, use screw 805 to pass through the upper connecting ring 803 and screw it into the threaded hole of the lower connecting ring 804 and tighten it. The tightening force of the screw 805 firmly locks the upper connecting ring 803 and lower connecting ring 804, thereby generating a strong radial clamping force on the internal valve pipe 802 and outlet pipe 7, completing the fixation. The connection is not only reliable, but also easy to disassemble and assemble, without the need for complicated welding or flange connections.

[0033] To ensure that the upper hot plate 1 and the lower hot plate 2 receive a parallel and balanced coolant supply in any mode, the first pipe 601 is designed specifically for supplying or discharging coolant to the upper hot plate 1, while the second pipe 602 is specifically for supplying or discharging coolant to the lower hot plate 2. Correspondingly, the third pipe 603 is specifically for handling the fluid inflow and outflow on the other side of the upper hot plate 1, and the fourth pipe 604 is specifically for handling the fluid inflow and outflow on the other side of the lower hot plate 2. This corresponding independent pipe design avoids the problems of series cooling or uneven flow distribution between different plates, ensuring that the cooling conditions of the two hot plates remain consistent when switching between the two cooling modes, and providing a solid structural guarantee for achieving uniform overall cooling.

[0034] Working principle: When this device is working, cold water is first injected through port A3, and monitoring component 5 collects the plate surface temperature data in real time. Based on this data, the control system coordinates the opening and closing of four valves—electric valve A501, electric valve B502, electric valve C503, and electric valve D504—to achieve intelligent switching between at least two cooling modes.

[0035] In the "cooling mode", open electric valves B502 and D504, and close electric valves A501 and C503 at the same time. At this time, cold water enters from port A3, flows through electric valve B502, first pipe 601 and second pipe 602 in sequence, and then is injected into the upper hot cold plate 1 and lower hot cold plate 2 for heat exchange. The exchanged water then flows through the third pipe 603 and fourth pipe 604, and electric valve D504, and finally flows back from port B4. In "return cooling" mode, the control system opens electric valves A501 and C503 while closing electric valves B502 and C503. At this time, cold water enters through port A3, its flow direction changes, flowing sequentially through electric valve C503, the third pipe 603, and the fourth pipe 604, thus being injected in reverse into the upper hot cold plate 1 and the lower hot cold plate 2. The exchanged water then flows through the first pipe 601, the second pipe 602, and electric valve A501, finally returning through port B4. This solves the technical problems of traditional cooling devices that only allow unidirectional water intake, uneven heat exchange, and excessive temperature differences on the plate surfaces. It allows cold water to enter the plate alternately or selectively in both directions, greatly improving the uniformity of heat exchange. Dual-mode cooling is achieved through the switching monitoring component 5 and the transport component 6.

[0036] Each valve in monitoring component 5 can automatically increase or decrease the cold flow or indirectly switch on and off based on the temperature data monitored in each area of ​​the heating plate, thereby improving the uniformity of temperature drop in each area of ​​the heating plate. At the same time, through communication between monitoring component 5 and temperature monitoring elements, the temperature can be reduced to the set temperature within a set time. This intelligent control method also brings extremely high temperature control efficiency, quickly reducing the plate temperature to the set target temperature within a set time, with fast response speed and high degree of automation.

[0037] When connecting four valves via the connecting assembly 8, firstly, the upper connecting ring 803 and the lower connecting ring 804 are fitted onto the outer walls of the valve pipe 802 and the outlet pipe 7 to connect them. When the upper connecting ring 803 and the lower connecting ring 804 are fitted onto the outer walls of the valve pipe 802 and the outlet pipe 7, the sealing ring 801 fixed inside the upper connecting ring 803 and the lower connecting ring 804 will be embedded inside the valve pipe 802 and the outlet pipe 7 to complete the sealing and fixing, preventing the upper connecting ring 803 and the lower connecting ring 804 from accidentally sliding and becoming misaligned. Then, the screw 805 is rotated into the upper connecting ring 803 and the lower connecting ring 804 to fix them, thus completing the fixed connection of the valve pipe 802 and the outlet pipe 7, thereby completing the quick installation of the valve.

Claims

1. A heating plate with both forward and reverse cooling, comprising: The upper hot and cold plate (1), the lower hot and cold plate (2), port A (3) and port B (4) are characterized in that they also include a transport component (6) and a monitoring component (5); The transport component (6) includes a first pipe (601), a second pipe (602), a third pipe (603), and a fourth pipe (604). The first pipe (601) and the second pipe (602) are fluidly connected to one side of the upper hot cold plate (1) and the lower hot cold plate (2), respectively. The third pipe (603) and the fourth pipe (604) are fluidly connected to the opposite side of the upper hot cold plate (1) and the lower hot cold plate (2), respectively. The monitoring component (5) includes electric valves A (501), B (502), C (503), and D (504). Port A (3) is connected to the inlet of electric valve B (502) and the inlet of electric valve C (503), respectively. The outlet of electric valve B (502) is connected to the first pipe (601) and the second pipe (602). The outlet of electric valve C (503) is connected to the third pipe (603) and the fourth pipe (604). The first pipe (601) and the second pipe (602) are connected to the inlet of the electric valve A (501) after flowing out of the upper hot plate (1) and the lower hot plate (2). The third pipe (603) and the fourth pipe (604) are connected to the inlet of the electric valve D (504) after flowing out of the upper hot plate (1) and the lower hot plate (2). The outlet of the electric valve A (501) and the outlet of the electric valve D (504) are connected to the B port (4).

2. The heating plate with forward and reverse cooling according to claim 1, characterized in that, The monitoring component (5) is also electrically connected to a temperature monitoring element disposed on the surface of the upper hot and cold plate (1) and the lower hot and cold plate (2).

3. The heating plate with forward and reverse cooling according to claim 1, characterized in that, The heating plate also includes a connecting assembly (8) for connecting pipelines, a valve pipe (802) connected to the valve outlet of the monitoring assembly (5), and a water outlet pipe (7).

4. A heating plate with forward and reverse cooling according to claim 3, characterized in that, The connecting assembly (8) includes an upper connecting ring (803) and a lower connecting ring (804), which are detachably sleeved on the outer wall of the connection between the valve pipe (802) and the water outlet pipe (7).

5. A heating plate with forward and reverse cooling according to claim 4, characterized in that, The connecting assembly (8) further includes a sealing ring (801), which is fixed to the inner wall of the upper connecting ring (803) and the lower connecting ring (804) and is embedded in the mating gap of the valve pipe (802) and the water outlet pipe (7) during connection.

6. A heating plate with forward and reverse cooling according to claim 4, characterized in that, The connecting assembly (8) further includes a screw (805) that passes through the upper connecting ring (803) and screws into the lower connecting ring (804) to lock and fix the upper connecting ring (803) and the lower connecting ring (804).

7. A heating plate with forward and reverse cooling according to claim 1, characterized in that, The first pipe (601) is used to deliver coolant to the upward hot plate (1), and the second pipe (602) is used to deliver coolant to the downward hot plate (2).

8. A heating plate with forward and reverse cooling according to claim 1, characterized in that, The third pipe (603) is used to discharge coolant from the upper hot plate (1), and the fourth pipe (604) is used to discharge coolant from the lower hot plate (2).

Images