Electrical constant temperature control device based on PLC (Programmable Logic Controller)

Abstract

The utility model discloses an electrical constant temperature control device based on a PLC (Programmable Logic Controller), and relates to the technical field of heating devices. Comprising a box body, a top heating assembly, a bottom heating assembly and a fan, the interior of the box body is divided into a heating cavity and an electrical control cavity, the top heating assembly is installed at an opening in the top of the heating cavity, and the fan is installed on the top heating assembly; the bottom heating assembly is arranged at the bottom of the heating cavity, and a plurality of thermocouple sensors are arranged in the heating cavity; a PLC, a solid-state relay and a frequency converter are arranged in the electric control cavity, the thermocouple sensor, the solid-state relay and the frequency converter are all electrically connected with the PLC, the fan is electrically connected with the frequency converter, and the bottom heating assembly is electrically connected with the solid-state relay. The utility model has the beneficial effects that the temperature of the heating cavity can be accurately controlled, and automatic constant-temperature control is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of heating devices, and more specifically, to an electric constant temperature control device based on a PLC controller. Background Art

[0002] At present, when the insulating glue of the linear motor coil is cured, a heating device is required to achieve the curing of the insulating glue. The heating device in the prior art generally includes a heating chamber, in which a heating rod is arranged. The temperature of the heating chamber is controlled by controlling the on and off of the heating rod. At the same time, the temperature of the heating chamber is monitored by a sensor to avoid the temperature not meeting the standard.

[0003] However, in a heating device of this structure, the temperature of the heating chamber cannot be accurately controlled, and the effect of automatic constant temperature control cannot be achieved, which has a great impact on product quality. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an electrical constant temperature control device based on a PLC controller, which can accurately control the temperature of a heating chamber and realize automatic constant temperature control.

[0005] The technical solution adopted by the utility model to solve the technical problem is: an electrical constant temperature control device based on a PLC controller, the improvement of which is that it includes a box body, a top heating component, a bottom heating component and a fan;

[0006] The interior of the box is divided into a heating chamber and an electrical control chamber, the top heating assembly is installed at the opening at the top of the heating chamber, the fan is installed on the top heating assembly, and the air is heated and blown into the heating chamber through the fan and the top heating assembly; the bottom heating assembly is arranged at the bottom of the heating chamber, and a plurality of thermocouple sensors are arranged inside the heating chamber;

[0007] A PLC controller, a solid-state relay and a frequency converter are arranged in the electrical control cavity; the thermocouple sensor, the solid-state relay and the frequency converter are all electrically connected to the PLC controller; the fan is electrically connected to the frequency converter; and the bottom heating component is electrically connected to the solid-state relay; by collecting signals from the thermocouple sensor, the PLC controller controls the bottom heating component to adjust the temperature in the heating cavity.

[0008] In the above structure, a control box is installed outside the box body, and the frequency of the frequency converter is set through the control box, and the parameters of the PLC controller are set.

[0009] In the above structure, a first partition and a second partition are arranged inside the heating chamber, the first partition divides the heating chamber into a first heating chamber and a second heating chamber, and the second partition is arranged above the bottom heating assembly;

[0010] The first partition plate and the second partition plate are used for placing the glue-adding and fixing mold.

[0011] In the above structure, a plurality of through holes are evenly distributed on the first partition plate and the second partition plate.

[0012] In the above structure, a window communicating with the first heating chamber and the second heating chamber is arranged on the side of the box body, and a heat insulation curtain is arranged on the window.

[0013] In the above structure, the side opening of the heating chamber is covered with an insulating door.

[0014] In the above structure, the top heating assembly includes a first cover, a second cover, a heating pipe and a fan coil;

[0015] The first cover body and the second cover body are both provided with a through hole on the top, and both include a cavity with an opening at the bottom, and the second cover body is arranged in the cavity of the first cover body; the first cover body is fixedly mounted at the opening on the top of the box body;

[0016] The heating pipe is annular and is installed between the first cover body and the second cover body;

[0017] The fan coil unit is installed in the cavity of the second cover body, the fan is fixedly installed on the through hole of the first cover body, and the lower end of the fan extends into the center of the fan coil unit.

[0018] In the above structure, the top heating assembly further comprises a porous sealing plate, and the porous sealing plate covers the opening at the bottom of the second cover body.

[0019] In the above structure, the bottom heating assembly includes a box body and a plurality of infrared heating tubes; the plurality of infrared heating tubes are arranged side by side in the box body, and the opening at the top of the box body is covered with glass.

[0020] In the above structure, the box body includes relatively arranged aluminum profiles and a connecting plate connected between the aluminum profiles. A connector is arranged at the bottom of the connecting plate, and power is supplied to the infrared heating tube through the connector.

[0021] The beneficial effect of the utility model is that the PLC controller controls the bottom heating component by collecting the signal of the thermocouple sensor to adjust the temperature in the heating chamber, and can accurately control the temperature of the heating chamber to achieve automatic constant temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a first three-dimensional structural schematic diagram of an electrical constant temperature control device based on a PLC controller of the utility model.

[0023] Figure 2 This is a second three-dimensional structural schematic diagram of an electrical constant temperature control device based on a PLC controller of the utility model.

[0024] Figure 3 It is a schematic diagram of the exploded view of the top heating component in the present utility model.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the bottom heating component in the utility model.

[0026] Figure 5 It is a schematic diagram of the exploded structure of the bottom heating component in the present invention.

[0027] In the figure: box body 10, supporting feet 101, heating chamber 102, electrical control chamber 103, thermocouple sensor 104, PLC controller 105, solid state relay 106, inverter 107, fan 108, control box 109, first partition 110, second partition 111, first heating chamber 112, second heating chamber 113, insulation curtain 114, insulation door 115, top heating component 20, first cover body 201, second cover body 202, heating pipe 203, fan coil 204, porous sealing plate 205, bottom heating component 30, box body 301, infrared heating pipe 302, glass 303, aluminum profile 304, connecting plate 305, connector 306, fan 40, glue fixing mold 50. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0032] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] Reference Figure 1 , Figure 2 As shown, the utility model provides an electrical constant temperature control device based on a PLC controller, through which the insulating glue of the linear motor coil is cured. In this embodiment, the device includes a box 10, a top heating component 20, a bottom heating component 30 and a fan 40; wherein the box 10 is in a rectangular shape, and support feet 101 are arranged at the four corners of the bottom; combined with Figure 1 As shown, the interior of the box body 10 is divided into an upper heating chamber 102 and a lower electrical control chamber 103. The top heating component 20 is installed at the opening at the top of the heating chamber 102. The fan 40 is installed on the top heating component 20. The air is heated and blown into the heating chamber 102 through the fan 40 and the top heating component 20. The specific structure of the top heating component 20 will be further described below.

[0034] Continue to combine Figure 1 , Figure 2As shown, the bottom heating component 30 is arranged at the bottom of the heating chamber 102, and a plurality of thermocouple sensors 104 are arranged inside the heating chamber 102; a PLC controller 105, a solid-state relay 106 and a frequency converter 107 are arranged in the electrical control chamber 103, and a fan 108 is arranged on the side wall of the box body 10 for dissipating heat from the electrical control chamber 103; in this embodiment, the thermocouple sensor 104, the solid-state relay 106 and the frequency converter 107 are all electrically connected to the PLC controller 105, the fan 40 is electrically connected to the frequency converter 107, and the bottom heating component 30 is electrically connected to the solid-state relay 106; through this structure, by collecting the signal of the thermocouple sensor 104, the PLC controller 105 controls the bottom heating component 30 to adjust the temperature in the heating chamber 102. For example, when the temperature signal collected by the thermocouple sensor 104 is transmitted to the PLC controller 105, the PLC controller 105 determines that the collected temperature is lower than the set temperature, and then controls the solid-state relay 106 to power the bottom heating component 30, so that it generates heat and increases the internal temperature of the heating chamber 102; at the same time, due to the presence of the frequency converter 107, the operating frequency of the fan 40 can be set; in this way, the temperature of the heating chamber 102 can be accurately controlled to achieve automatic constant temperature control.

[0035] In addition, in this embodiment, a control box 109 is installed outside the box body 10, and the frequency of the frequency converter 107 is set through the control box 109, and the parameters of the PLC controller 105 are set. Therefore, when the insulating glue of the linear motor coil is cured, different temperatures, times and frequencies of the fan 40 can be set according to the product model, thereby greatly improving the quality of the finished product.

[0036] The control box 109 has a display interface, which can set the temperature, heating time and fan 40 frequency of the curing insulation glue of various linear motor coils, and save them in the touch screen, which can be directly called next time, making it convenient for operators to call parameters.

[0037] For the structure of the heating chamber 102, refer to Figure 1 , Figure 2As shown, the heating chamber 102 is provided with a first partition 110 and a second partition 111. The first partition 110 divides the heating chamber 102 into a first heating chamber 112 and a second heating chamber 113. The second partition 111 is provided above the bottom heating assembly 30. The first partition 110 and the second partition 111 are used to place the glue-adding fixed mold 50, and the first partition 110 and the second partition 111 are evenly distributed with a plurality of through holes to facilitate the circulation of air in the first heating chamber 112 and the second heating chamber 113. By providing the first partition 110 and the second partition 111, the glue-adding fixed mold 50 can be placed on the first partition 110 and the second partition 111 respectively, so that the insulating glue can be cured for multiple linear motor coils at the same time, thereby improving the curing efficiency. In addition, the side of the box body 10 is provided with a window connected to the first heating chamber 112 and the second heating chamber 113, and the window is provided with a heat insulation curtain 114 to facilitate the placement and removal of the glue-adding fixed mold 50. The side opening of the heating chamber 102 is covered with an insulating door 115 .

[0038] For the top heating assembly 20, refer to Figure 3 As shown, the utility model provides a specific embodiment, the top heating component 20 includes a first cover body 201, a second cover body 202, a heating pipe 203 and a fan coil unit 204; the first cover body 201 is fixedly installed at the opening at the top of the box body 10 to achieve sealing of the top of the box body 10; the tops of the first cover body 201 and the second cover body 202 are both provided with a through hole, and both include a cavity with an opening at the bottom, and the second cover body 202 is arranged in the cavity of the first cover body 201; the heating pipe 203 is annular, and the heating pipe 203 is installed between the first cover body 201 and the second cover body 202; further, the fan coil unit 204 is installed in the cavity of the second cover body 202, the fan 40 is fixedly installed on the through hole of the first cover body 201, and the lower end of the fan 40 extends into the center of the fan coil unit 204. In addition, the top heating assembly 20 further includes a porous sealing plate 205 , which covers the opening at the bottom of the second cover body 202 .

[0039] Through this structure, the heat generated by the heating tube 203 is stored in the space between the first cover 201 and the second cover 202 to prevent heat loss; under the action of the fan 40, the heated air is discharged from the outlet of the fan coil 204 into the heating chamber 102, thereby increasing the temperature inside the heating chamber 102 to achieve the curing of the insulating glue. In this embodiment, the structure of the fan coil 204 is relatively common in the prior art, so its structure will not be described in more detail in this embodiment.

[0040] Reference Figure 4 , Figure 5As shown, for the bottom heating assembly 30, the utility model provides a specific embodiment, the bottom heating assembly 30 includes a box body 301 and a plurality of infrared heating tubes 302; the plurality of infrared heating tubes 302 are arranged side by side in the box body 301, and the opening at the top of the box body 301 is covered with glass 303. The box body 301 includes aluminum profiles 304 arranged opposite to each other and a connecting plate 305 connected between the aluminum profiles 304, and a connector 306 is arranged at the bottom of the connecting plate 305, and the infrared heating tubes 302 are powered by the connector 306.

[0041] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An electrical constant temperature control device based on a PLC controller, characterized in that: It includes a box body, a top heating component, a bottom heating component and a fan; The interior of the box is divided into a heating chamber and an electrical control chamber, the top heating assembly is installed at the opening at the top of the heating chamber, the fan is installed on the top heating assembly, and the air is heated and blown into the heating chamber through the fan and the top heating assembly; the bottom heating assembly is arranged at the bottom of the heating chamber, and a plurality of thermocouple sensors are arranged inside the heating chamber; A PLC controller, a solid-state relay and a frequency converter are arranged in the electrical control cavity; the thermocouple sensor, the solid-state relay and the frequency converter are all electrically connected to the PLC controller; the fan is electrically connected to the frequency converter; and the bottom heating component is electrically connected to the solid-state relay; by collecting signals from the thermocouple sensor, the PLC controller controls the bottom heating component to adjust the temperature in the heating cavity.

2. An electrical constant temperature control device according to claim 1, characterized in that: A control box is installed outside the box body, through which the frequency of the frequency converter is set, and the parameters of the PLC controller are set.

3. An electrical constant temperature control device according to claim 1, characterized in that: A first partition and a second partition are arranged inside the heating chamber, the first partition divides the heating chamber into a first heating chamber and a second heating chamber, and the second partition is arranged above the bottom heating assembly; The first partition plate and the second partition plate are used for placing the glue-adding and fixing mold.

4. An electrical constant temperature control device according to claim 3, characterized in that: The first partition plate and the second partition plate are evenly distributed with a plurality of through holes.

5. An electrical constant temperature control device according to claim 3, characterized in that: A window communicating with the first heating chamber and the second heating chamber is arranged on the side of the box body, and a heat insulation curtain is arranged on the window.

6. An electrical constant temperature control device according to claim 3, characterized in that: The side opening of the heating chamber is covered with an insulation door.

7. An electrical constant temperature control device according to claim 1, characterized in that: The top heating assembly includes a first cover body, a second cover body, a heating pipe and a fan coil unit; The first cover body and the second cover body are both provided with a through hole on the top, and both include a cavity with an opening at the bottom, and the second cover body is arranged in the cavity of the first cover body; the first cover body is fixedly mounted at the opening on the top of the box body; The heating pipe is annular and is installed between the first cover body and the second cover body; The fan coil unit is installed in the cavity of the second cover body, the fan is fixedly installed on the through hole of the first cover body, and the lower end of the fan extends into the center of the fan coil unit.

8. An electrical constant temperature control device according to claim 7, characterized in that: The top heating assembly further comprises a porous sealing plate, which covers the opening at the bottom of the second cover body.

9. An electrical constant temperature control device according to claim 1, characterized in that: The bottom heating assembly comprises a box body and a plurality of infrared heating tubes; the plurality of infrared heating tubes are arranged side by side in the box body, and the opening at the top of the box body is covered with glass.

10. An electrical constant temperature control device according to claim 9, characterized in that: The box body comprises aluminum profiles arranged opposite to each other and a connecting plate connected between the aluminum profiles. A connector is arranged at the bottom of the connecting plate, and power is supplied to the infrared heating tube through the connector.

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