Electric control permanent magnetic chuck controller

Abstract

The utility model relates to the field of electromagnetic chuck manufacturing, in particular to an electric control permanent magnetic chuck controller, which comprises a casing, a PCB (printed circuit board) is mounted in the casing, and electrical components are arranged on the front side and the back side of the PCB; a cold conduction plate is attached to the component on the back face of the PCB in the direction away from the PCB, a first semiconductor cooler is arranged on the cold conduction plate in the direction away from the PCB, the cooling end of the first semiconductor cooler is attached to the cold conduction plate, the heat dissipation end of the first semiconductor cooler is exposed out of the back face of the machine shell, and a heat dissipation plate is attached to the component on the front face of the PCB in the direction away from the PCB. A first cooling fin and a first cooling fan are sequentially arranged in the direction, away from the PCB, of the cooling plate, and an air inlet and an air outlet are formed in the shell wall of the machine shell. The heat dissipation device has the advantages that active refrigeration heat dissipation is achieved by arranging the semiconductor cooler, utilizing the PCB to supply power and cooperating with original fan heat dissipation, the internal temperature of the heat dissipation device can be rapidly reduced, and the temperature can be kept within the optimal range.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic chuck manufacturing, and in particular to an electrically controlled permanent magnet chuck controller. Background Technology

[0002] An electrically controlled permanent magnet chuck is a device that combines the advantages of electromagnets and permanent magnets. It can maintain a strong magnetic force even without electricity. When it is necessary to change the magnetic state, the magnetic poles are switched or the magnetic force is released by briefly applying electricity. Electrically controlled permanent magnet chucks are widely used in industries such as metal processing, logistics and warehousing, construction, medical equipment, and scientific research.

[0003] During the operation of the electrically controlled permanent magnet chuck, a controller is needed to control the power supply to and from the chuck. The controller uses 220V AC voltage, which is stepped down by a transformer, rectified by a rectifier to become DC, and then fed into the chuck through the control device. At this time, the chuck is magnetized. When demagnetizing, a reverse voltage circuit is applied, and the controller achieves the demagnetization function, which facilitates the control of adsorption and separation of objects.

[0004] In the injection molding industry, electrically controlled permanent magnet chucks are mainly used for quick mold changes and fixation. This technology significantly improves production efficiency, reduces downtime, and enhances the overall flexibility of the production line. However, the injection molding workshop is very hot, and the controller is located on the even hotter injection molding machine body. The electrical components inside the controller also generate heat, and the high temperature accumulated inside the controller housing directly affects the performance of these components. Currently, controller cooling is passive, using heat sinks to transfer heat and then a fan to blow the heat to the outside, thus keeping the controller temperature within a normal operating range.

[0005] However, the above-mentioned heat dissipation methods keep the controller temperature in a relatively high range and cannot reduce it to the optimal operating temperature range. Based on this, this case is proposed. Utility Model Content

[0006] The purpose of this invention is to provide an electronically controlled permanent magnet chuck controller that can quickly and stably cool down to the optimal operating temperature, thereby solving the above-mentioned defects.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] An electrically controlled permanent magnet chuck controller includes a housing, inside which a PCB board is installed. Electrical components are provided on both the front and back sides of the PCB board. A cooling plate is attached to the components on the back side of the PCB board away from the PCB board. A semiconductor cooler is provided on the cooling plate away from the PCB board, with the cooling end of the semiconductor cooler attached to the cooling plate and the heat dissipation end exposed on the back side of the housing. A heat sink is attached to the components on the front side of the PCB board away from the PCB board. A heat sink and a cooling fan are arranged sequentially on the heat sink away from the PCB board. An air inlet and an air outlet are provided on the wall of the housing.

[0009] Furthermore, the air inlet is divided into two parts, which are respectively located on the left and right sides of the PCB board.

[0010] Furthermore, there are two cooling fans arranged symmetrically on the left and right sides. The front of the casing is divided into a left air outlet area, a middle operating area and a right air outlet area. Air outlets are provided on both the left and right air outlet areas. Inside the casing, there is a left air guide plate located between the left cooling fan and the left air outlet area, and a right air guide plate located between the right cooling fan and the right air outlet area.

[0011] Furthermore, a filter screen is installed at the air inlet.

[0012] Furthermore, an air inlet duct is provided inside the housing at the air inlet, and semiconductor coolers are symmetrically arranged on both sides of the air inlet duct. The cooling end of the semiconductor cooler is located inside the housing, and the heat dissipation end is exposed outside the housing.

[0013] Furthermore, the side of the cooling plate closest to the PCB board has a concave-convex structure, with the concave surface forming a space that can accommodate electrical components and the convex surface that can fit perfectly onto the PCB board.

[0014] Furthermore, the heat sink has a concave-convex structure on the side of the PCB board, with the concave surface forming a space that can accommodate electrical components and the convex surface that can fit on the PCB board.

[0015] Furthermore, the housing is equipped with an electric lifting rod, the rod seat of which is used to be mounted on the injection molding machine body, and the lifting end of the electric lifting rod is used to be fixed to the housing. The housing is equipped with track wheels that can slide on the injection molding machine body.

[0016] The advantages of this utility model are:

[0017] 1. By setting up a semiconductor cooler and using PCB board power supply, combined with the original fan heat dissipation, active cooling and heat dissipation can be achieved, which can quickly reduce the internal temperature of the heat sink and keep the temperature within the optimal range; 2. The controller has a lifting design, which lowers when in use and raises when not in use, to avoid workers accidentally touching or bumping into it, which would cause the working status of the injection molding machine to be changed without cause and create safety hazards. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the electrically controlled permanent magnet chuck controller in the embodiment;

[0019] Figure 2 This is an exploded view of the internal components of the electrically controlled permanent magnet chuck controller in the embodiment;

[0020] Figure 3 for Figure 1 Enlarged diagram of part A in the diagram;

[0021] Figure 4 This is a schematic diagram of the electrically controlled permanent magnet chuck controller installed on the injection molding machine in the embodiment.

[0022] Label Explanation

[0023] 1. Injection molding machine; 2. Machine housing; 3. Electric lifting rod; 4. Track wheels; 5. PCB board; 6. Electrical components; 7. Air inlet; 8. Air outlet; 901. Left air guide plate; 902. Right air guide plate; 10. Cooling fan one; 11. Semiconductor cooler one; 1101. Cooling plate; 1102. Heat sink two; 1103. Cooling fan two; 12. Semiconductor cooler two; 13. Cooling plate; 14. Heat sink; 15. Heat sink one; 16. Filter screen; 17. Operating area. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the embodiments. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" etc. indicated by the accompanying drawings are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0025] This embodiment proposes an electrically controlled permanent magnet chuck controller, such as... Figure 1 and Figure 2As shown, the device includes a housing 2, inside which a PCB board 5 is installed. The front and back sides of the PCB board 5 correspond to the front and back sides of the housing 2, respectively. Electrical components 6 are provided on both the front and back sides of the PCB board 5. A cooling plate 13 is attached to the back side of the PCB board 5 away from the components. A thermoelectric cooler 11 (a thermoelectric cooler, also known as a TEC thermoelectric cooler, works by absorbing heat at one end and releasing heat at the other end when a direct current passes through a thermocouple composed of P-type and N-type semiconductor materials) is located on the back side of the PCB board 5 away from the components. The cooling end of the thermoelectric cooler 11 is attached to the cooling plate 13, while the heat dissipation end is exposed on the back side of the housing 2. A heat sink 14 is attached to the front side of the PCB board 5 away from the components. A heat sink 15 and a cooling fan 10 are arranged sequentially on the heat sink 14 away from the PCB board 5. An air inlet 7 and an air outlet 8 are provided on the wall of the housing 2.

[0026] The heat dissipation process of the controller is as follows: External heat enters the housing 2 through heat transfer. Simultaneously, the PCB board 5 operates, and its electrical components 6 generate heat, causing heat to accumulate inside the housing 2, resulting in a high temperature. The thermoelectric cooler 11 operates, generating a cold source at its cooling end to actively cool the PCB board 5. The heat generated by the thermoelectric cooler 11 is directly discharged outside the housing 2. Some of the heat on the PCB board 5 is dissipated through the heat sink 14, heat fins 15, and cooling fan 10 via the air outlet 8, achieving further cooling. During the cooling process of the cooling fan 10, the low temperature generated by the thermoelectric cooler 11 is transferred and spread from the back of the PCB board 5 to the front, gradually lowering the entire PCB board 5 to a low temperature. Due to the configuration of the cooling fan 10, an air inlet 7 is required to balance the pressure inside the housing 2.

[0027] like Figure 1 and Figure 3 As shown, the air inlet 7 is divided into two parts, respectively located on the left and right sides of the PCB board 5. The air entering through the air inlet 7 comes from the injection molding workshop. To prevent dust in the workshop from contaminating the controller, a filter screen 16 is installed at the air inlet 7 in this embodiment. At the same time, the air temperature in the injection molding workshop is also relatively high. To reduce the air intake temperature, an air intake duct is formed inside the housing 2 at the air inlet 7. Semiconductor coolers 12 are symmetrically arranged on both sides of the air intake duct. The cooling end of the semiconductor cooler 12 is located inside the housing 2, and the heat dissipation end is exposed outside the housing 2. The air intake temperature is reduced by cooling the cooling end of the semiconductor cooler 12.

[0028] Continue to refer to Figure 1There are two cooling fans 10, symmetrically arranged on the left and right. The front of the casing 2 is divided into a left air outlet area, a central operating area 17, and a right air outlet area. Air outlets 8 are provided on both the left and right air outlet areas. Inside the casing 2, a left air guide plate 901 is located between the left cooling fan 10 and the left air outlet area, and a right air guide plate 902 is located between the right cooling fan 10 and the right air outlet area to further improve heat dissipation efficiency. The central operating area 17 is equipped with operating buttons and a display interface electrically connected to the PCB board 5.

[0029] like Figure 2 As shown, to improve the cooling effect, the surface of the cooling plate 13 on the side facing the PCB board 5 in this embodiment has a concave-convex structure. The concave surface forms a space that can accommodate the electrical component 6, and the convex surface can fit perfectly against the PCB board 5. The surface of the heat sink 14 on the side facing the PCB board 5 also has a concave-convex structure. The concave surface forms a space that can accommodate the electrical component 6, and the convex surface can fit perfectly against the PCB board 5. This significantly increases the contact area between the PCB board 5, the electrical component 6, and the cooling plate 13 and heat sink 14, improving the efficiency of cooling conduction and heat dissipation, ensuring that the temperature drops rapidly and remains at the optimal operating temperature.

[0030] Semiconductor cooler 11 and semiconductor cooler 212 are basically the same in structure except for their size, such as Figure 2 As shown, the structure of the semiconductor cooler 11 is explained as an example. The semiconductor cooler 11 includes a cooling plate 1101, a heat sink 1102 fixed on the back of the cooling plate 1101, and a cooling fan 1103 mounted on the heat sink 1102. After being powered on, the front of the cooling plate 1101 cools to form a cold source, and the back forms a heat source. The heat from the heat source is dissipated outward through the heat sink 1102 and the cooling fan 1103.

[0031] like Figure 4 As shown, the controller is installed at the end of the injection molding machine 1. The front operating area 17 of the controller housing 2 faces the operator, and the air inlets 7 are located on the left and right sides. In this embodiment, an electric lifting rod 3 is provided on the housing 2. The rod base of the electric lifting rod 3 is used to install on the body of the injection molding machine 1, and the lifting end of the electric lifting rod 3 is fixed to the top surface of the housing 2, thereby realizing the lifting and lowering of the controller. The back of the housing 2 is provided with track wheels 4 that can slide on the body of the injection molding machine 1. A guide rail is provided on the injection molding machine 1 to achieve linear lifting and lowering of the controller. The controller lifting design lowers it when in use and raises it when not in use, preventing accidental contact or collision by workers, which could unnecessarily change the working state of the injection molding machine 1 and create safety hazards.

[0032] The above embodiments are only used to explain the concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.

Claims

1. An electrically controlled permanent magnet chuck controller, comprising a housing, a PCB board installed inside the housing, and electrical components provided on both the front and back sides of the PCB board; characterized in that: A cooling plate is attached to the back of the PCB board components away from the PCB board. A semiconductor cooler is provided on the cooling plate away from the PCB board. The cooling end of the semiconductor cooler is attached to the cooling plate, and the heat dissipation end is exposed on the back of the casing. A heat sink is attached to the front of the PCB board components away from the PCB board. A heat sink and a cooling fan are arranged in sequence on the heat sink away from the PCB board. An air inlet and an air outlet are provided on the casing wall.

2. The electrically controlled permanent magnet chuck controller as described in claim 1, characterized in that, The air inlet is divided into two parts, which are respectively located on the left and right sides of the PCB board.

3. The electrically controlled permanent magnet chuck controller as described in claim 1, characterized in that, There are two cooling fans arranged symmetrically on the left and right. The front of the casing is divided into a left air outlet area, a middle operating area and a right air outlet area. Air outlets are provided on both the left and right air outlet areas. Inside the casing, there is a left air guide plate located between the left cooling fan and the left air outlet area, and a right air guide plate located between the right cooling fan and the right air outlet area.

4. The electrically controlled permanent magnet chuck controller as described in claim 1, characterized in that, A filter screen is installed at the air inlet.

5. The electrically controlled permanent magnet chuck controller as described in claim 1, characterized in that, An air inlet duct is provided inside the housing at the air inlet. Semiconductor coolers are symmetrically arranged on both sides of the air inlet duct. The cooling end of the semiconductor cooler is located inside the housing, and the heat dissipation end is exposed outside the housing.

6. The electrically controlled permanent magnet chuck controller as described in claim 1, characterized in that, The cooling plate has a concave-convex structure on the side of the PCB board. The concave surface can just accommodate electrical components, and the convex surface can just fit on the PCB board.

7. The electrically controlled permanent magnet chuck controller as described in claim 1, characterized in that, The heat sink has a concave-convex structure on the side of the PCB board. The concave surface can accommodate electrical components, and the convex surface can fit perfectly onto the PCB board.

8. The electrically controlled permanent magnet chuck controller as described in claim 1, characterized in that, The housing is equipped with an electric lifting rod. The rod base of the electric lifting rod is used to be installed on the injection molding machine body. The lifting end of the electric lifting rod is used to be fixed to the housing. The back of the housing is equipped with track wheels that can slide on the injection molding machine body.

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