Pulse proportion electric heating actuator

Abstract

The invention relates to a pulse proportion electric heating actuator, and relates to the technical field of heating, the pulse proportion electric heating actuator comprises a body and a proportion control assembly, the proportion control assembly is arranged in the body, the proportion control assembly comprises a plurality of control proportions, and the plurality of control proportions correspond to a plurality of strokes of the electric heating actuator; wherein the proportional control assembly performs control according to a plurality of control proportions to achieve a plurality of strokes, so that the actuator is opened or closed according to different proportions. According to the pulse proportion electric heating actuator, the stroke is controlled according to different proportions, then the flow of each branch valve is adjusted according to different room temperatures in heating, fine adjustment is carried out according to different proportions, the problem that the room temperatures are not uniform in heating is solved, and the heating efficiency is improved. And the flow control accuracy of the heating branch is improved.

Description

Technical Field

[0001] The invention relates to the technical field of heating, and in particular to a pulse proportional electric heating actuator. Background Art

[0002] When the heating manifolds currently on the market are actually used, the temperatures of the branches are often uneven. When the lengths of the floor heating pipes of each branch are the same, the branch closest to the water supply main is often the highest in temperature, and the branch farthest from the water supply main is the lowest in temperature. The reason is that the branch closest to the water supply main has the smallest resistance and the largest flow rate; the branch farthest from the water supply main has the largest resistance and therefore the smallest flow rate. In the actual process of laying floor heating pipes, the lengths of the floor heating pipes of each branch are also different, which causes the temperature differences in each room to be uneven.

[0003] Patent CN 214946794 U in the prior art discloses a manual-automatic electric heating actuator, which can manually or electrically control the actuator's on / off or flow rate. However, under its electric control, it can only realize two states: power on and power off, and cannot adjust the flow rate of each branch. Therefore, the current heating manifold equipped with this actuator cannot solve the current problem of uneven temperature in each room. Therefore, the prior art has the technical problem that the electric heating actuator has insufficient flow control accuracy and cannot solve the uneven heating temperature in each room. Summary of the invention

[0004] The present invention aims at solving the technical problem that the electric heating actuator in the prior art has insufficient flow control accuracy and cannot solve the uneven heating temperature in each room, and provides a pulse proportional electric heating actuator to solve the problem.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: The present invention provides a pulse proportional electrothermal actuator, comprising: ontology; A proportional control component is disposed in the body, the proportional control component includes a plurality of control proportions, and the plurality of control proportions correspond to a plurality of strokes of the electrothermal actuator; The proportional control component controls the multiple strokes according to the multiple control proportions, so that the actuator is opened or closed according to different proportions.

[0006] In a possible implementation, the ratio control component includes: A control PCB board, one side of which is connected to a power line to supply power to the control PCB board; A stroke driving component, connected to the other side of the control PCB board, and performs stroke driving according to the multiple strokes under the control of the control PCB board; A stroke indicating component is fixed relatively to the stroke driving component and moves along with the driving of the stroke driving component; Wherein, the control PCB board outputs a plurality of signal voltages corresponding to the plurality of control ratios to the stroke driving component based on the power supply of the power line, and controls the stroke driving component to perform driving according to the plurality of strokes.

[0007] In a possible implementation, the travel driving component includes: An electric heating device connected to the control PCB board; A temperature bag is arranged on the electric heating device; An indicator cover is arranged on the temperature bag; Wherein, the electric heating device electrically heats the temperature bag to produce a stroke according to the signal voltage output by the PCB board, and pushes the indicating cover to move.

[0008] In a possible implementation manner, the control PCB board further includes: A power socket, the power socket being connected to the power cord; A first pole piece, the first pole piece is in contact with the copper shell of the temperature package; A second pole piece, wherein the second pole piece abuts against the electric heating device.

[0009] In a possible implementation, the travel indication component includes: A magnetic bar, the magnetic bar is fixed on the indicating cover and moves along with the movement of the indicating cover; A magnetic sensor is arranged on the control PCB board; A prompter is arranged on the main body and connected to the control PCB board; The magnetic sensor senses and monitors the moving distance of the magnetic rod, and the control PCB generates a prompt signal according to the moving distance, and controls the prompter to give a prompt.

[0010] In a possible implementation manner, the indicator is an LED signal light.

[0011] In a possible implementation, the body includes a base and a fixing seat, the fixing seat is assembled on the base, and the base further includes: The temperature package cylinder is used to accommodate the temperature package and has clearance with the outer circle of the temperature package; The clamping claws are arranged on the outer side of the temperature bag cylinder and are used for holding the temperature bag.

[0012] In a possible implementation, the base further includes: The PCB limiting groove is arranged near the power line and is used for installing the control PCB board.

[0013] In a possible implementation, the base further includes: A first pole piece positioning groove, connected to the PCB limiting groove, and used for accommodating the first pole piece; The second pole piece positioning groove is connected to the PCB limiting groove and is used to accommodate the second pole piece.

[0014] The indicator cover also includes: The magnetic bar limiting hole is arranged on one side of the PCB limiting groove, and the magnetic bar is arranged in the magnetic bar limiting hole.

[0015] The beneficial effects of the present invention are as follows: the present invention configures a proportional control component in the electric heating actuator, so that the electric heating actuator can achieve different strokes according to different control ratios, thereby making it possible to control the flow of the heating branch according to a variety of precise strokes, thereby adjusting the flow of each branch valve according to the different temperatures of each room, solving the problem of uneven temperatures in each room, and achieving the technical effect of improving the control accuracy of the heating branch flow and improving the balance of the heating temperature in each room. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic cross-sectional structure diagram of a pulse proportional electrothermal actuator provided by the present invention; Figure 2 A schematic diagram of the structure of a pulse proportional electrothermal actuator provided by the present invention; Figure 3 One of the structural schematic diagrams of a pulse proportional electrothermal actuator provided by the present invention; Figure 4 The second structural schematic diagram of a pulse proportional electrothermal actuator provided by the present invention; Figure 5 A schematic diagram of the structure of a power line of a pulse proportional electrothermal actuator provided by the present invention; Figure 6 A schematic structural diagram of a magnetic rod limiting hole of a pulse proportional electrothermal actuator provided by the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are described as follows: Control PCB board 1, power cord 11, plug pole piece 111, anti-drop buckle 112, sheath protrusion 113, power protection cover 114, PCB limiting groove 12, electric heating device 21, temperature bag 22, indicator cover 23, power socket 31, first pole piece 32, first pole piece positioning groove 321, second pole piece 33, second pole piece positioning groove 331, magnetic bar 41, magnetic bar limiting hole 411, magnetic sensor 42, prompter 43, LED lamp cover 431, base 51, fixed base 52, transmission nut 611, handle 612, working spring 613, movable base 614, movable nut 615, handwheel 616, sealing ring 617, claw 618. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] In the description of the present invention, the term "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in the present invention is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present invention.

[0021] Embodiment 1, as Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a pulse proportional electrothermal actuator, which specifically includes: a body and a proportional control component.

[0022] The body is the shell of the electric thermal actuator, the proportional control assembly is arranged in the body, and the proportional control assembly includes multiple control ratios, which correspond to multiple strokes of the electric thermal actuator. The multiple strokes of the electric thermal actuator are specifically multiple strokes of the valve opening.

[0023] The proportional control component can control the electric heating actuator to reach multiple strokes according to multiple control proportions, so that the actuator can be opened or closed according to different multiple proportions.

[0024] Among them, the proportional control components include: A control PCB board 1, one side of the control PCB board 1 is connected to a power line 11 to supply power to the control PCB board 1; A stroke driving component, connected to the other side of the control PCB board 1, and performs stroke driving according to the multiple strokes under the control of the control PCB board 1; A stroke indicating component is fixed relatively to the stroke driving component and moves along with the driving of the stroke driving component; The control PCB board 1 outputs a plurality of signal voltages corresponding to the plurality of control ratios to the stroke driving component based on the power supply of the power line 11 , and controls the stroke driving component to perform driving according to the plurality of strokes.

[0025] In an embodiment of the present application, one side of the control PCB board 1 is connected to a power line 11, and the power line 11 supplies power to the control PCB board 1 to perform pulse proportional control, specifically outputting a voltage signal for stroke control. The voltage signal includes voltages of different proportional sizes, forming multiple control ratios, thereby achieving multiple strokes of the electric heating actuator.

[0026] The stroke driving component is connected to the other side of the control PCB board 1, and performs stroke driving according to the multiple strokes under the control signal of the control PCB board 1, so that the electric heating actuator reaches multiple strokes. Exemplarily, the stroke driving component drives the valve stem of the valve of the electric heating actuator according to the multiple strokes under the control signal of the control PCB board 1, so that the opening of the valve reaches different strokes, thereby controlling the flow of the heating branch.

[0027] The stroke indicating component is relatively fixed to the stroke driving component and moves along with the driving of the stroke driving component, thereby providing prompt information to the user to indicate the current stroke of the electric heating actuator and further to indicate the heating branch flow rate.

[0028] In an embodiment of the present application, the control PCB board 1 outputs multiple signal voltages corresponding to multiple control ratios to the stroke drive component based on the power supply of the power line 11, and the stroke drive component is controlled to be driven according to multiple strokes, so that the electric thermal actuator is opened or closed according to different ratios to control the flow.

[0029] Among them, Figure 3 As shown, the travel drive components include: The electric heating device 21 is connected to the control PCB board 1; A temperature package 22 is arranged on the electric heating device 21; An indicator cover 23 is disposed on the temperature bag 22; The electric heating device 21 controls the signal voltage output by the PCB board 1 to cause the electric heating package 22 to travel and push the indicating cover 23 to move.

[0030] In the embodiment of the present application, the electric heating device 21 is, for example, an electric heating wire, connected to the PCB board, and starts heating under the signal voltage sent by the PCB board, and the heating power is different under different signal voltages, so as to achieve heating according to different control ratios. According to the signal voltage output by the PCB board, the electric heating package 22 of the electric heating device 21 generates a stroke and pushes the indicator cover 23 to move.

[0031] The temperature package 22 is arranged on the electric heating device 21, and generates a stroke under the heating of the electric heating device 21. Specifically, the temperature package 22 includes a temperature-sensitive medium, which can produce a volume change under heating, thereby generating a stroke, and different temperatures produce different strokes, thereby achieving different strokes under different signal voltages.

[0032] For example, the full stroke of the electrothermal actuator (eg, the full stroke of the valve stem) is S A The middle section is divided into several sections such as S1, S2, S3...S A , A is an integer greater than or equal to 1, for example, 10, and the signal voltage range sent by the control PCB board 1 is: V0~V A When the signal voltage sent by the control PCB board 1 is V1, the corresponding stroke of the electric heating actuator is S1; when the signal voltage is V2, the corresponding stroke of the electric heating actuator is S2; when the signal voltage is V3, the corresponding stroke of the electric heating actuator is S3; when the signal voltage is V A When the electric heating actuator corresponds to a stroke of S A At this time, the actuator is fully open; when the signal voltage is V0, the temperature package 22 does not produce a volume change, and the corresponding stroke of the electric heating actuator is 0, and the electric heating actuator is fully closed at this time.

[0033] The indicator cover 23 is disposed on the temperature bag 22 and moves synchronously with the volume change and stroke change of the temperature bag 22 .

[0034] Among them, the control PCB board 1 also includes: A power socket 31, wherein the power socket 31 is connected to the power line 11; A first pole piece 32, wherein the first pole piece 32 is in contact with the copper shell of the temperature package 22; The second pole piece 33 is against the electric heating device 21 .

[0035] In the embodiment of the present application, the power socket 31 is connected to the power cord 11, and is used to access the power supply and supply power to the PCB board, and operate according to the set rules.

[0036] One side of the control PCB board 1 contacts the power socket 31, and power is supplied through the power socket 31. The other side of the control PCB board 1 has two copper foils, which are respectively in contact with the first pole piece 32 and the second pole piece 33. The first pole piece 32 contacts the copper shell of the temperature bag 22, and the second pole piece 33 abuts against the electric heating device 21. In this way, a passage among the control PCB board 1, the electric heating device 21 and the temperature bag 22 is formed. The power line 11 is connected to the power supply to supply power to the temperature bag 22, and the temperature bag 22 is heated to produce a stroke, so that the actuator is opened or closed.

[0037] Among them, the travel indication component includes: A magnetic bar 41, wherein the magnetic bar 41 is fixed to the indicator cover 23 and moves along with the movement of the indicator cover 23; A magnetic sensor 42 is provided on the control PCB board 1; A prompter 43 is arranged on the main body and connected to the control PCB board 1; In the embodiment of the present application, the magnetic rod 41 is fixed on the indicator cover 23 and moves with the movement of the indicator cover 23, that is, moves along with the stroke of the temperature bag 22. The moving distance of the magnetic rod 41 can reflect the stroke of the electric heating actuator.

[0038] The magnetic sensor 42 is arranged on the control PCB board 1. When the magnetic rod 41 moves, the magnetic field changes. The magnetic sensor 42 can sense and monitor the moving distance of the magnetic rod 41, and then transmit it to the control PCB board 1 to obtain the current stroke of the electric heating actuator, adjust the signal voltage and proportionally control it to stabilize the flow of the heating branch.

[0039] The prompter 43 is arranged on the main body, that is, on the shell of the electric heating controller, and is connected to the control PCB board 1. It is used to prompt the user of the current stroke of the electric heating actuator, that is, to prompt the user of the current heating branch flow size and the indoor temperature.

[0040] In the embodiment of the present application, the magnetic sensor 42 senses and monitors the moving distance of the magnetic rod 41, controls the PCB board 1 to generate a prompt signal according to the moving distance, and controls the prompter 43 to give a prompt. For example, if the moving distance of the magnetic rod 41 is the largest, the prompter 43 generates a prompt signal indicating that the current flow rate is the largest, and if the moving distance of the magnetic rod 41 is 0, the prompter 43 generates a prompt signal indicating that the current heating branch is disconnected.

[0041] Exemplarily, the indicator 43 is an LED signal light. When the displacement of the electrothermal actuator corresponds to a working state of different strokes, the indicator light will light up in different colors, such as red, orange, yellow, green, etc.

[0042] The LED signal light is provided with an LED lampshade 431. The light is wrapped by the LED lampshade 431, presenting a gathering effect, and then penetrates the outer shell, so that the working state of the actuator can be visually observed.

[0043] Exemplarily, a software program can also be set in the control PCB board 1 to control the signal voltage sent according to the moving distance of the monitored magnetic rod 41. For example, when the moving distance of the monitoring magnetic rod 41 is large and the controller stroke is large, the control sends a smaller signal voltage to reduce the heating flow to avoid excessive temperature, or when the moving distance of the monitoring magnetic rod 41 is small and the controller stroke is small, the control sends a larger signal voltage to increase the heating flow to avoid excessive temperature. In this way, stable heating flow control under proportional control is achieved to ensure that the flow and temperature of the heating branches in different rooms can reach a balanced level. Optionally, a remote control device can also be configured to remotely control the PCB board 1 for stroke control.

[0044] Further, such as Figure 1 As shown in FIG. 4 , the body includes a base 51 and a fixing base 52. The fixing base 52 is assembled on the base 51. The base 51 also includes: The temperature package 22 cylinder is used to accommodate the temperature package 22 and has clearance with the outer circle of the temperature package 22; The claws 618 are arranged on the outer side of the cylinder of the temperature bag 22 to hold the temperature bag 22 to prevent the temperature bag 22 from loosening.

[0045] Among them, Figure 4 As shown, the base 51 also includes: The PCB limiting groove 12 is arranged near the power line 11 and is used for installing and fixing the control PCB board 1.

[0046] The base 51 further comprises: The first pole piece positioning groove 321 is connected to the PCB limiting groove 12 and is used to accommodate the first pole piece 32; The second pole piece positioning groove 331 is connected to the PCB limiting groove 12 and is used to accommodate the second pole piece 33. After the first pole piece 32 and the second pole piece 33 are installed in the first pole piece positioning groove 321 and the second pole piece positioning groove 331, they are connected and conducted with the control PCB board 1.

[0047] Among them, Figure 6 As shown, the indicator cover 23 also includes: The magnetic bar limiting hole 411 is arranged at one side of the PCB limiting groove 12, and the magnetic bar 41 is arranged in the magnetic bar limiting hole 411. It is used to limit the moving direction of the magnetic bar 41, specifically the axial direction.

[0048] The pulse proportional electrothermal actuator provided in the embodiment of the present application also includes a manual control structure for manually controlling the on and off of the actuator, which is the same as that in patent CN 214946794 U. The main improvement of the embodiment of the present application lies in the proportional control component in the aforementioned content.

[0049] The pulse proportional electric heating actuator provided in the embodiment of the present application also includes a transmission nut 611, a handle 612, a working spring 613, a movable seat 614, a movable nut 615 and a handwheel 616. Under the rotation of the movable nut 615 and the handle 612, the transmission nut 611, the working spring 613, the movable seat 614 and the movable nut 615 are controlled to move in coordination, thereby driving the valve stem of the valve, controlling the valve stem stroke, and realizing the manual on-off control of the actuator. Exemplarily, the transmission nut 611 is driven by the rotation of the handwheel 616, and the transmission nut 611 drives the working spring 613 to rise, thereby driving the movable seat 614 to move axially, so that the movable seat 614 moves upward to drive the valve stem to control the branch opening flow rate to increase. When the handwheel 616 is adjusted in the reverse direction, the working spring 613 pushes the movable seat 614 to reset, so that the branch opening flow rate becomes smaller or closed, so the on-off and flow rate of the branch can be controlled by manual control adjustment.

[0050] Among them, sealing rings 617 are provided between the handle 612 and the hand wheel 616 and between the movable seat 614 and the base 51 to improve the protection level of the product and extend the service life.

[0051] like Figure 5 As shown, the power cord 11 also includes a plug pole 111, an anti-drop buckle 112, a sheath protrusion 113 and a power protection cover 114. After the power cord 11 is inserted to the bottom, the sheath protrusion 113 and the plug groove of the base 51 act as a seal, and the anti-drop buckle 112 acts to limit the power cord 11 from falling out.

[0052] The pulse proportional electrothermal actuator provided by the embodiment of the present invention has at least the following technical effects: The present invention configures a proportional control component in the electric heating actuator so that the electric heating actuator can achieve different strokes according to different control ratios, thereby enabling the heating branch flow control to be performed according to a variety of fine strokes. The present invention also has a separate design of the pole piece and the power supply, a plug-in structure for the wires, which makes installation and use faster, and sealing rings are provided between the hand wheel and the handle, between the movable seat and the base, and between the base and the power cord to improve protection. In this way, the flow of each branch valve can be adjusted according to the different temperatures of each room, solving the problem of uneven temperatures in each room, and achieving the technical effect of improving the control accuracy of the heating branch flow and improving the balance of the heating temperature in each room.

[0053] Although preferred embodiments of the present invention have been described, additional changes and modifications may occur to these embodiments once those skilled in the art understand the basic inventive concepts.

[0054] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention belong to the scope of the present invention and its equivalent technologies, the present invention is also intended to include these changes and variations.

Claims

1. A pulse proportional electrothermal actuator, characterized in that: include: ontology; A proportional control component is disposed in the body, the proportional control component includes a plurality of control proportions, and the plurality of control proportions correspond to a plurality of strokes of the electrothermal actuator; The proportional control component controls the multiple strokes according to the multiple control proportions, so that the actuator is opened or closed according to different proportions.

2. The pulse proportional electrothermal actuator according to claim 1, characterized in that: The proportional control assembly comprises: A control PCB board, one side of which is connected to a power line to supply power to the control PCB board; A stroke driving component, connected to the other side of the control PCB board, and performs stroke driving according to the multiple strokes under the control of the control PCB board; A stroke indicating component is fixed relatively to the stroke driving component and moves along with the driving of the stroke driving component; Wherein, the control PCB board outputs a plurality of signal voltages corresponding to the plurality of control ratios to the stroke driving component based on the power supply of the power line, and controls the stroke driving component to perform driving according to the plurality of strokes.

3. The pulse proportional electrothermal actuator according to claim 2, characterized in that: The travel driving component comprises: An electric heating device connected to the control PCB board; A temperature bag is arranged on the electric heating device; An indicator cover is arranged on the temperature bag; Wherein, the electric heating device electrically heats the temperature bag to produce a stroke according to the signal voltage output by the PCB board, and pushes the indicating cover to move.

4. The pulse proportional electrothermal actuator according to claim 3, characterized in that: The control PCB board also includes: A power socket, the power socket being connected to the power cord; A first pole piece, the first pole piece is in contact with the copper shell of the temperature package; A second pole piece, wherein the second pole piece abuts against the electric heating device.

5. The pulse proportional electrothermal actuator according to claim 2, characterized in that: The travel indicating component comprises: A magnetic bar, the magnetic bar is fixed on the indicator cover and moves along with the movement of the indicator cover; A magnetic sensor is arranged on the control PCB board; A prompter is arranged on the main body and connected to the control PCB board; The magnetic sensor senses and monitors the moving distance of the magnetic rod, and the control PCB generates a prompt signal according to the moving distance, and controls the prompter to give a prompt.

6. The pulse proportional electrothermal actuator according to claim 5, characterized in that: The prompter is an LED signal light.

7. The pulse proportional electrothermal actuator according to claim 1, characterized in that: The body comprises a base and a fixing seat, the fixing seat is assembled on the base, and the base further comprises: The temperature package cylinder is used to accommodate the temperature package and has clearance with the outer circle of the temperature package; The clamping claws are arranged on the outer side of the temperature bag cylinder and are used for holding the temperature bag.

8. The pulse proportional electrothermal actuator according to claim 7, characterized in that: The base also includes: The PCB limit groove is arranged near the power line and is used for installing the control PCB board.

9. The pulse proportional electrothermal actuator according to claim 7, characterized in that: The base also includes: A first pole piece positioning groove, connected to the PCB limiting groove, for accommodating the first pole piece; The second pole piece positioning groove is connected to the PCB limiting groove and is used to accommodate the second pole piece.

10. The pulse proportional electrothermal actuator according to claim 3, characterized in that: The indicator cover also includes: The magnetic bar limiting hole is arranged on one side of the PCB limiting groove, and the magnetic bar is arranged in the magnetic bar limiting hole.

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