A piezoelectric valve glue constant temperature control device

Abstract

The utility model relates to the point of the electric automobile vehicle controller's glue field, provides a piezoelectric valve glue constant temperature control device, including electromagnetic valve, eddy current pipe, piezoelectric valve cooling bucket, temperature sensor and constant temperature control module, on the gas circuit, the air inlet of electromagnetic valve connects the factory gas source, the air outlet provides cooling gas through the eddy current pipe to piezoelectric valve cooling bucket, the inside of piezoelectric valve cooling bucket is cylindrical cavity, is used to deposit glue, be provided with cooling channel between the inner wall and the outer wall of piezoelectric valve cooling bucket, is used for cooling gas to pass through, carries out the cooling to the bucket, on the circuit, the output of temperature sensor is electrically connected with the input of constant temperature control module, the output of constant temperature control module is electrically connected with the controlled end of electromagnetic valve, to control the action of electromagnetic valve, the utility model can realize the temperature control on the glue technology top, avoids the metamorphic of glue in the use process.

Description

Technical Field

[0001] This utility model relates to the field of dispensing adhesives for electric vehicle on-board controllers, and more specifically, to a piezoelectric valve adhesive constant temperature control device. Background Technology

[0002] In the application of adhesives for dispensing onboard controllers in electric vehicles within the new energy industry, 30cc volumes of adhesive are currently used. Based on the chip dispensing requirements of new energy vehicle domain controllers, this adhesive can be used up within two hours without deteriorating to the point of being unsuitable for the dispensing process. However, this method has the following disadvantages: First, currently, glue can only be used in low-capacity packaging (30cc). If large-capacity packaging is used, the glue will deteriorate if it is used for more than 2 hours at room temperature.

[0003] Secondly, the glue needs to be replaced frequently. Manual labor is required to replace the used glue with a full load every two hours, which affects the equipment's production capacity.

[0004] Therefore, there is an urgent need for a device that can maintain a constant temperature for large-sized adhesive packages, so that the adhesive is not affected by the length of time it is used or the ambient temperature. Utility Model Content

[0005] The problem solved by this invention is how to provide a piezoelectric valve adhesive constant temperature control device that can realize temperature control in the adhesive process and prevent the adhesive from deteriorating during use.

[0006] To address the aforementioned problems, this utility model provides a piezoelectric valve adhesive constant temperature control device, comprising: a solenoid valve, a vortex tube, a piezoelectric valve cooling tank, a temperature sensor, and a constant temperature control module. In the gas circuit, the inlet of the solenoid valve is connected to a factory gas source, and the outlet provides cooling gas to the piezoelectric valve cooling tank via the vortex tube. The interior of the piezoelectric valve cooling tank is a cylindrical cavity for storing adhesive. A cooling channel is provided between the inner and outer walls of the piezoelectric valve cooling tank for the passage of cooling gas to cool the interior. The detection end of the temperature sensor extends into the piezoelectric valve cooling tank. In the circuit, the output end of the temperature sensor is electrically connected to the input end of the constant temperature control module to transmit the detected temperature information inside the tank to the constant temperature control module. The output end of the constant temperature control module is electrically connected to the controlled end of the solenoid valve to control the operation of the solenoid valve.

[0007] Furthermore, the solenoid valve is a two-position three-way solenoid valve.

[0008] Furthermore, the vortex tube inlet is connected to the solenoid valve outlet via an air pipe, the cold air inlet is connected to the cooling channel inlet inside the piezoelectric valve cooling tank via an air pipe, and the hot air inlet serves as the exhaust port.

[0009] Furthermore, the cooling channel is a groove-shaped channel spirally surrounding the inner wall of the piezoelectric valve cooling barrel, with the starting and ending ends of the cooling channel extending out of the outer wall of the piezoelectric valve cooling barrel, forming the air inlet and outlet of the cooling channel on the outer wall of the piezoelectric valve cooling barrel.

[0010] Furthermore, the cooling channel is a groove-shaped channel spirally surrounding the inner wall of the piezoelectric valve cooling barrel, with the starting and ending ends of the cooling channel extending out of the outer wall of the piezoelectric valve cooling barrel, forming the air inlet and outlet of the cooling channel on the outer wall of the piezoelectric valve cooling barrel.

[0011] Furthermore, the temperature sensor is a thermistor connected to a 6-pin connector at its end.

[0012] Furthermore, the constant temperature control module adopts a thermostat, the power port of the thermostat is connected to the power supply, the input port is connected to the thermal resistor through a 6-pin plug, the output port is connected to the coil of the relay, and the power control terminal of the solenoid valve is connected to the power supply through the open contact of the relay.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. During use, a temperature range can be preset in the constant temperature control module. By detecting the temperature information inside the glue bucket, the constant temperature control module can control the solenoid valve to open when the glue temperature inside the bucket exceeds the upper limit of the temperature range. The compressed gas provided by the air source is cooled by the vortex tube and then transmitted to the cooling channel of the piezoelectric valve cooling bucket to cool the inside of the bucket, causing the temperature inside the bucket to drop until it reaches the lower limit of the temperature range. The solenoid valve is then closed. This cycle is repeated to maintain the glue inside the glue bucket within the required temperature range. This achieves low-cost and high-efficiency constant temperature control for large-sized packaged glue, avoiding the cost waste caused by glue deterioration due to the high temperature environment inside the equipment, which would result in glue spoilage before it is used up. This ensures that the glue is not affected by the length of time it has been used or the ambient temperature.

[0014] 2. Vortex tube refrigeration applications utilize a vortex tube system. The principle is as follows: compressed and cooled gas enters the nozzle of the vortex tube, expands and accelerates to the speed of sound, and is injected tangentially into the vortex chamber, forming a free vortex. The rotational angular velocity of the free vortex increases closer to the center. Due to the difference in angular velocity, friction occurs between the layers of the free vortex. The central part of the airflow has the highest angular velocity. This friction transfers energy to the outer layers of airflow with lower angular velocities. The central layer loses energy, resulting in low kinetic energy, reduced speed, and lower temperature. This energy is drawn out from one end through the orifice plate in the center of the vortex tube, providing the cold airflow needed for refrigeration. Meanwhile, the outer layer gains momentum, increasing its kinetic energy. Simultaneously, friction with the turbine tube wall converts some of the kinetic energy into heat energy, which is drawn out from the other end of the vortex tube through a control valve, forming a hot airflow. This hot airflow is then discharged as exhaust gas, while the cold airflow is used to cool the glue container. This physical refrigeration method using vortex tubes requires minimal energy consumption, making it more cost-effective compared to refrigeration methods using electricity or other energy sources. 3. The cooling channels are spiral-shaped and evenly spaced around the inside of the cooling tank, so that during cooling, the cooling gas is evenly distributed on the tank wall, which can uniformly and efficiently cool the glue inside the tank. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall principle structure of an embodiment of the present utility model; Figure 2 This is a circuit diagram of the temperature controller according to an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1-Solenoid valve; 2-Eddy current tube; 3-Piezoelectric valve cooling tank; 4-Constant temperature control module; 5-Temperature sensor. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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; 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.

[0019] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or illustrative embodiment of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0020] like Figure 1 As shown, this utility model provides a piezoelectric valve glue constant temperature control device, including: a solenoid valve 1, a vortex tube 2, a piezoelectric valve cooling tank 3, a temperature sensor 5, and a constant temperature control module 4. In the gas circuit, the air inlet of the solenoid valve 1 is connected to the factory gas source, and the air outlet provides cooling gas to the piezoelectric valve cooling tank 3 through the vortex tube 2. The interior of the piezoelectric valve cooling tank 3 is a cylindrical cavity for storing glue. A cooling channel is provided between the inner wall and the outer wall (i.e., the inner and outer surfaces of the cooling tank wall) of the piezoelectric valve cooling tank 3 for the cooling gas to pass through and cool the inside of the tank. The detection end of the temperature sensor 5 extends into the piezoelectric valve cooling tank 3. In the circuit, the output end of the temperature sensor 5 is electrically connected to the input end of the constant temperature control module 4 to transmit the detected temperature information inside the tank to the constant temperature control module 4. The output end of the constant temperature control module 4 is electrically connected to the controlled end of the solenoid valve 1 to control the operation of the solenoid valve 1.

[0021] It should be noted that during use, a temperature range can be preset in the constant temperature control module 4. By detecting the temperature information inside the glue bucket, the constant temperature control module 4 can control the solenoid valve 1 to open when the glue temperature inside the bucket exceeds the upper limit of the temperature range. The compressed gas provided by the air source is cooled by the vortex tube 2 and then transmitted to the cooling channel of the piezoelectric valve cooling bucket 3 to cool the inside of the bucket, causing the temperature inside the bucket to drop until it reaches the lower limit of the temperature range. Then, the solenoid valve 1 is closed. This cycle is repeated to maintain the glue inside the glue bucket within the required temperature range. This achieves low-cost and high-efficiency constant temperature control for large-sized packaged glue, avoiding the cost waste caused by glue deterioration due to the high temperature environment inside the equipment, which would result in glue spoilage before it is used up. This ensures that the glue is not affected by the length of time it has been used or the ambient temperature.

[0022] In one embodiment of this utility model, the solenoid valve 1 is a two-position three-way solenoid valve 1.

[0023] In one embodiment of this utility model, the air inlet of the vortex tube 2 is connected to the air outlet of the solenoid valve 1 through an air pipe, the cold air inlet is connected to the air inlet of the cooling channel in the piezoelectric valve cooling tank 3 through an air pipe, and the hot air inlet serves as the exhaust port.

[0024] It should be noted that vortex tube 2 refrigeration is an existing physical refrigeration method based on the Rank-Helix effect. It separates compressed gas into two streams, cold and hot, using the cold stream for cooling. A typical vortex tube 2 consists of a tangential nozzle, a vortex chamber, a separation orifice plate, hot and cold end tubes, and a control valve. Compressed gas enters the vortex chamber through the nozzle, forming a free vortex. The central low-temperature stream is discharged through the orifice plate, while the outer high-temperature stream is discharged through the valve. The temperature can be controlled by adjusting the valve.

[0025] In this embodiment, a vortex tube 2 is used for refrigeration. Gas compressed and cooled to room temperature enters the nozzle of the vortex tube 2, expands and accelerates to the speed of sound in the nozzle, and is injected into the vortex chamber tangentially, forming a free vortex. The rotational angular velocity of the free vortex increases closer to the center. Due to the difference in angular velocity, friction is generated between the layers of the free vortex. The airflow in the central part has the largest angular velocity. As a result of friction, energy is transferred to the outer layer of airflow with a lower angular velocity. The airflow in the central layer loses energy, has low kinetic energy, and its speed and temperature decrease. It is led out from one end through the orifice plate in the center of the vortex tube 2 to obtain the cold airflow required for refrigeration. The airflow in the outer layer gains momentum and its kinetic energy increases. At the same time, it rubs against the turbine tube wall, converting some of the kinetic energy into heat energy. It is led out from the other end of the vortex tube 2 through the control valve to form a hot airflow. In this way, the hot airflow is discharged as exhaust gas, and the cold airflow is used as cooling airflow for the glue bucket. The physical refrigeration method using the vortex tube 2 does not require much energy consumption and is cheaper than refrigeration methods using electricity or other energy sources.

[0026] In one embodiment of this utility model, the cooling channel is a groove-shaped channel spirally surrounding the inner wall of the piezoelectric valve cooling tank 3. The starting end and the ending end of the cooling channel extend out of the outer wall of the piezoelectric valve cooling tank 3, and the air inlet and air outlet of the cooling channel are formed on the outer wall of the piezoelectric valve cooling tank 3.

[0027] It should be noted that the cooling channels are spiral-shaped and evenly spaced around the inside of the cooling barrel. During cooling, the cooling gas enters the air inlet of the cooling channel through the pipe, and the cooling gas is evenly distributed on the barrel wall through the spiral cooling channel and flows out through the air outlet. This can uniformly and efficiently cool the glue inside the barrel.

[0028] In one embodiment of this utility model, the temperature sensor 5 is a thermal resistor with a 6-pin connector at its end.

[0029] It should be noted that the head of the RTD, i.e. the detection end, passes through the bottom of the cooling tank and enters the cooling tank, and is fixed on the cooling tank. The tail of the RTD is connected to a 6-pin plug, which can facilitate circuit connection.

[0030] In one embodiment of this utility model, the constant temperature control module 4 adopts a thermostat. The power port of the thermostat is connected to the power supply, the input port is connected to the thermal resistor through a 6-pin plug, the output port is connected to the coil of the relay, and the power control terminal of the solenoid valve 1 is connected to the power supply through the open contact of the relay.

[0031] It should be noted that, as Figure 2 As shown, the constant temperature control module 4 uses a Yudian AI-516D6GS6 temperature controller. The controller's V+ and V- ports are power ports, connected to an external 24V power supply. A and B are sampling input ports, connected to a 6-pin connector, which in turn connects to a thermal resistor Z1-B18 to obtain temperature information inside the cooling tank. OUT+ and OUT- are output ports. When the temperature exceeds the preset range, it outputs 24V power to the coil of relay SSR7, causing relay SSR7 to conduct. This, in turn, opens solenoid valve 1, connected to the power supply through the opening of relay SSR7, allowing compressed gas to enter the vortex tube 2. The temperature controller also features RS485 communication, with RS485A and RS485B as communication ports, allowing connection to a host computer to upload temperature data. Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A piezoelectric valve adhesive constant temperature control device, characterized in that, include: The system includes a solenoid valve (1), a vortex tube (2), a piezoelectric valve cooling tank (3), a temperature sensor (5), and a constant temperature control module (4). In the gas circuit, the inlet of the solenoid valve (1) is connected to the factory gas source, and the outlet provides cooling gas to the piezoelectric valve cooling tank (3) through the vortex tube (2). The piezoelectric valve cooling tank (3) has a cylindrical cavity inside for storing glue. A cooling channel is provided between the inner and outer walls of the piezoelectric valve cooling tank (3) for cooling gas to pass through and cool the inside of the tank. The detection end of the temperature sensor (5) extends into the piezoelectric valve cooling tank (3). In the circuit, the output end of the temperature sensor (5) is electrically connected to the input end of the constant temperature control module (4) to transmit the detected temperature information inside the tank to the constant temperature control module (4). The output end of the constant temperature control module (4) is electrically connected to the controlled end of the solenoid valve (1) to control the action of the solenoid valve (1).

2. The piezoelectric valve glue constant temperature control device according to claim 1, characterized in that, The solenoid valve (1) is a two-position three-way solenoid valve (1).

3. The piezoelectric valve adhesive constant temperature control device according to claim 1, characterized in that, The air inlet of the vortex tube (2) is connected to the air outlet of the solenoid valve (1) through an air pipe, the cold air inlet is connected to the air inlet of the cooling channel in the piezoelectric valve cooling tank (3) through an air pipe, and the hot air inlet serves as the exhaust port.

4. The piezoelectric valve adhesive constant temperature control device according to claim 3, characterized in that, The cooling channel is a groove-shaped channel that spirals around the inner wall of the piezoelectric valve cooling barrel (3). The starting end and the ending end of the cooling channel extend out of the outer wall of the piezoelectric valve cooling barrel (3), and the air inlet and air outlet of the cooling channel are formed on the outer wall of the piezoelectric valve cooling barrel (3).

5. The piezoelectric valve adhesive constant temperature control device according to claim 1, characterized in that, The temperature sensor (5) is a thermal resistor with a 6-pin connector at the end.

6. The piezoelectric valve adhesive constant temperature control device according to claim 5, characterized in that, The constant temperature control module (4) uses a thermostat. The power port of the thermostat is connected to the power supply, the input port is connected to the thermal resistor through a 6PIN plug, and the output port is connected to the coil of the relay. The power control terminal of the solenoid valve (1) is connected to the power supply through the open point of the relay.

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