External super capacitor device based on PLC

Abstract

The utility model provides an external super capacitor device based on a PLC, which belongs to the field of electronic digital data processing devices, and comprises a PLC controller, a super capacitor, a plug connector and a power management chip, the super capacitor is arranged on the side surface of the PLC controller, the power management chip is connected with the PLC controller, and the plug connector is connected with the power management chip. The super capacitor is connected with the power management chip through the plug connector, and the super capacitor aims at solving the problems that in the prior art, a super capacitor based on a PLC is low in replacement efficiency, high in cost and not beneficial to capacitor upgrading and expansion, and has the technical effects that the capacitor is automatically replaced without being returned to a factory for maintenance, the replacement and maintenance efficiency is high, and the cost is low. And the cost is saved while time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic digital data processing devices, in particular to an external supercapacitor device based on a PLC. Background Art

[0002] PLCs and distributed I / Os are widely used in various industries such as metallurgy, automotive, power, petrochemical, environmental protection, and smart agriculture. In an industrial process control system, sudden power outages of the system may occur, which can lead to the loss of important data that cannot be restored. Therefore, power-failure protection of data is very important. The existing power-failure holding schemes usually have the following two forms:

[0003] First, use a random access memory (RAM) with an external power supply. Although this scheme can store data for a long time, the disadvantage is that the external power supply requires regular battery replacement. In a harsh industrial site environment, it is vulnerable to interference, resulting in irreversible loss of data in the random access memory (RAM).

[0004] To solve the problem of irreversible loss of data in the random access memory (RAM) caused by regular battery replacement, the prior art also proposes embedding a supercapacitor on the PCB board inside the PLC controller, using the supercapacitor to provide short-term power holding for the PLC core circuit to provide about - seconds of power-failure protection time to ensure that the PLC core circuit can store data completely into a permanent memory. However, when the supercapacitor fails or is damaged, the PLC needs to be disassembled and returned to the manufacturer or even the entire PCB board needs to be replaced, with low efficiency and high cost; in addition, this method is not conducive to capacitor upgrade and expansion and requires factory return for processing. Summary of the Utility Model

[0005] The utility model provides an external supercapacitor device based on a PLC to solve the problems in the prior art such as low replacement efficiency, high cost, and unfavorable capacitor upgrade and expansion of the supercapacitor based on the PLC controller, realizing self-replacement of the capacitor without factory return for repair, with relatively high replacement and repair efficiency, saving time and effort while saving costs.

[0006] The utility model provides an external supercapacitor device based on a PLC, including a PLC controller, a supercapacitor, a plug connector, and a power management chip. The supercapacitor is arranged on the side of the PLC controller, the power management chip is connected to the PLC controller, and the supercapacitor is connected to the power management chip through the plug connector.

[0007] According to the utility model, the setting of the supercapacitor on the side of the PLC controller in cooperation with the setting of the plug connector realizes the external placement of the supercapacitor. When the supercapacitor fails or is damaged, the capacitor can be replaced by oneself without factory return for repair, with relatively high replacement and repair efficiency, saving time and effort while saving costs.

[0008] The power-off protection time of the PLC can be infinitely extended according to the configured number of supercapacitors, and it does not occupy the physical space of the PLC controller's PCB motherboard. The supercapacitor upgrade and expansion are relatively convenient and fast.

[0009] In addition, for an external supercapacitor device based on the PLC according to the present utility model, the following additional technical features may also be included:

[0010] In some embodiments of the present utility model, the supercapacitor includes a capacitor body and a housing. The capacitor body is disposed within the housing, the housing is connected to the PLC controller, and the capacitor body is connected to the power management chip through a plug connector.

[0011] By adopting the above embodiment, the setting of the housing can provide a placement environment for the capacitor body, thereby realizing the external setting of the capacitor body.

[0012] In some embodiments of the present utility model, an external power supply is further included, and both the supercapacitor and the power management chip are electrically connected to the external power supply.

[0013] In some embodiments of the present utility model, the controller includes an electrically erasable programmable read-only memory, a memory processor, and a CPU central processing unit;

[0014] The electrically erasable programmable read-only memory, the memory processor, and the CPU central processing unit are all connected to the power management chip, and the electrically erasable programmable read-only memory and the memory processor are respectively connected to the CPU central processing unit.

[0015] In some embodiments of the present utility model, the supercapacitor further includes a clamping ear. The clamping ear is disposed on the outer sidewall of the housing, and the housing is connected to the PLC controller through the clamping ear.

[0016] By adopting the above embodiment, the reliable connection between the housing and the PLC controller is realized through the setting of the clamping ear.

[0017] In some embodiments of the present utility model, the supercapacitor further includes a bottom plate. The bottom of the housing is connected to the bottom plate, and the capacitor body is disposed on the bottom plate.

[0018] By adopting the above embodiment, the setting of the bottom plate provides a placement environment for the capacitor body.

[0019] In some embodiments of the present utility model, the supercapacitor further includes a capacitor circuit board. The capacitor body is disposed on the capacitor circuit board, and the capacitor circuit board is disposed on the bottom plate.

[0020] In some embodiments of the present utility model, it further includes a first connector and a second connector. The power management chip is provided with the first connector, and the capacitor circuit board is provided with the second connector. The second connector is electrically connected to the capacitor body, and the first connector and the second connector are connected through a connector.

[0021] By adopting the above embodiments, through the settings of the first connector and the second connector, the connector reliably connects the super capacitor to the power management chip.

[0022] In some embodiments of the present utility model, a controller housing is provided on the outer periphery of the PLC controller. The outer shell is connected to the side wall of the controller housing through a clamping ear, and the power management chip is arranged inside the controller housing.

[0023] By adopting the above embodiments, the setting of the controller housing provides a placement space for the PLC controller, and at the same time, the connection between the outer shell and the controller housing ensures the convenience of disassembly after the super capacitor is connected to the PLC controller.

[0024] In some embodiments of the present utility model, a connection hole is formed on the side wall of the controller housing, and the clamping ear is clamped on the side wall of the connection hole.

[0025] By adopting the above embodiments, through the setting of the clamping ear in cooperation with the connection hole, the rapid disassembly and assembly of the outer shell relative to the controller housing are realized.

[0026] In summary, the present application includes the following beneficial technical effects: The setting of arranging the super capacitor on the side of the PLC controller in cooperation with the setting of the connector realizes the external placement of the super capacitor. When the super capacitor fails or is damaged, the capacitor can be replaced by itself without returning to the factory for repair, with relatively high replacement and repair efficiency, saving time and effort while saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0028] Figure 1 Schematically shows a three-dimensional view of an external super capacitor device based on a PLC according to some embodiments of the present utility model.

[0029] Figure 2 Schematically shows a structural diagram of the PLC controller of the external super capacitor device based on a PLC according to some embodiments of the present utility model arranged inside the controller housing.

[0030] Figure 3 Schematically shown is a structural diagram of the PLC controller of the external supercapacitor device based on PLC according to some embodiments of the present utility model, without a cover plate after being disposed inside the controller housing.

[0031] Figure 4 Schematically shown is a first view of the structural diagram of the supercapacitor of the external supercapacitor device based on PLC according to some embodiments of the present utility model.

[0032] Figure 5 Schematically shown is a second view of the structural diagram of the supercapacitor of the external supercapacitor device based on PLC according to some embodiments of the present utility model.

[0033] Figure 6 Schematically shown is a structural diagram of the capacitor body of the external supercapacitor device based on PLC according to some embodiments of the present utility model, disposed on the capacitor circuit board.

[0034] Figure 7 Schematically shown is the circuit schematic diagram of the external supercapacitor device based on PLC according to some embodiments of the present utility model.

[0035] Reference numerals:

[0036] 1. PLC controller, 11. Controller housing, 12. First connector, 13. Connection hole, 15. Cover plate, 2. Supercapacitor, 21. Outer shell, 22. Capacitor body, 23. Second connector, 24. Clamping ear, 25. Capacitor circuit board, 27. Bottom plate, 28. Wire passing hole, 3. External power supply, 4. Power management chip, 5. Connector, 6. RTE operating environment, 7. Electrically erasable programmable read-only memory, 8. Memory processor, 9. CPU central processing unit. Detailed embodiments

[0037] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0038] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "having", and "containing" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless explicitly indicated as the order of performance. It should also be understood that additional or alternative steps may be used.

[0039] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms when used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0040] For ease of description, spatial relative relationship terms may be used herein to describe the relationship of one element or feature shown in the figures to another element or feature, such as "inner", "outer", "inside", "outside", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "beneath" another element or feature will then be oriented "above" or "over" the other element or feature. Thus, the example term "below" can include both an upper and a lower orientation. The device may be otherwise oriented, rotated 90 degrees or in other directions, and the spatial relative relationship descriptors used herein are to be interpreted accordingly.

[0041] As Figures 1 to 7As shown, according to an embodiment of the first aspect of the present utility model, an external supercapacitor device based on a PLC is proposed, which includes a PLC controller 1, a supercapacitor 2, a plug connector 5, and a power management chip 4. The supercapacitor 2 is arranged on the side of the PLC controller 1. The power management chip 4 is connected to the PLC controller 1, and the supercapacitor 2 is connected to the power management chip 4 through the plug connector 5.

[0042] In the above embodiment, it should be noted that the supercapacitor 2 is connected to the PLC controller 1 by means of screwing or clamping.

[0043] The technical effect achieved by the above embodiment is that the arrangement of the supercapacitor 2 on the side of the PLC controller 1 in cooperation with the arrangement of the plug connector 5 realizes the external placement of the supercapacitor 2. When the supercapacitor 2 fails or is damaged, the capacitor can be replaced by itself without returning to the factory for repair, and the replacement and repair efficiency is relatively high, saving time and effort while saving costs.

[0044] The power-off protection time of the PLC controller 1 can be infinitely extended according to the configured number of supercapacitors 2, and it does not occupy the physical space of the PCB main board of the PLC controller 1. The upgrade and expansion of the supercapacitor 2 are relatively convenient and fast.

[0045] Optionally, as Figures 2 to 6 shown, the supercapacitor 2 includes a capacitor body 22 and a housing 21. The capacitor body 22 is arranged inside the housing 21. The housing 21 is connected to the PLC controller 1, and the capacitor body is connected to the power management chip 4 through the plug connector 5.

[0046] The supercapacitor 2 further includes a clamping ear 24. The clamping ear 24 is arranged on the outer side wall of the housing 21, and the housing 21 is connected to the PLC controller 1 through the clamping ear 24.

[0047] The supercapacitor 2 further includes a capacitor circuit board 25. The capacitor body 22 is arranged on the capacitor circuit board 25, and the capacitor circuit board 25 is arranged on a bottom plate 27.

[0048] The supercapacitor 2 further includes a bottom plate 27. The bottom of the housing 21 is connected to the bottom plate 27, and the capacitor body 22 is arranged on the bottom plate 27.

[0049] A controller housing 11 is arranged on the outer periphery of the PLC controller 1. The housing 21 is connected to the side wall of the controller housing 11 through the clamping ear 24, and the power management chip 4 is arranged inside the controller housing 11.

[0050] It also includes a first plug-in connector 12 and a second plug-in connector 23. The first plug-in connector 12 is provided on the power management chip 4, and the second plug-in connector 23 is provided on the capacitor circuit board 25. The second plug-in connector 23 is electrically connected to the capacitor body 22, and the first plug-in connector 12 and the second plug-in connector 23 are connected by a plug-in connector 5.

[0051] A connection hole 13 is provided on the side wall of the controller housing 11, and the clamping ear 24 is clamped on the side wall of the connection hole 13.

[0052] In the above optional embodiment, it should be noted that a cover plate 15 is rotatably connected to the side of the housing 21 through a rotating shaft, and the cover plate 15 covers the position of the first plug-in connector 12; the PLC controller 1 is screwed into the controller housing 1, the capacitor body 22 is electrically connected to the capacitor circuit board 25 and then welded, and the capacitor circuit board 25 is screwed to the bottom plate 27.

[0053] A wire passing hole 28 is provided on the side of the housing 21, and the plug-in connector 5 passes through the wire passing hole 28 and is plugged and connected to the second plug-in connector 23.

[0054] The beneficial effects of the above optional embodiment are as follows:

[0055] First, the setting of the controller housing 11 provides a placement space for the PLC controller 1, and at the same time, the connection between the housing 21 and the controller housing 11 ensures the convenience of disassembling the super capacitor 2 after being connected to the PLC controller 1.

[0056] Second, through the setting of the first plug-in connector 12 and the second plug-in connector 23, the plug-in connector 5 reliably connects the super capacitor 2 and the power management chip 4.

[0057] Optionally, as Figure 1 and Figure 7 shown, it further includes an external power supply 3, and both the super capacitor 2 and the power management chip 4 are electrically connected to the external power supply 3.

[0058] In the above optional embodiment, it should be noted that the external power supply 3 is a DC 24V power supply.

[0059] Optionally, as Figure 7 shown, the controller includes an electrically erasable programmable read-only memory 7, a memory processor 8, and a CPU central processing unit 9;

[0060] The electrically erasable programmable read-only memory 7, the memory processor 8, and the CPU central processing unit 9 are all connected to the power management chip 4, and the electrically erasable programmable read-only memory 7 and the memory processor 8 are respectively connected to the CPU central processing unit 9.

[0061] In the above optional embodiment, it should be noted that the power-off and data protection principle of this external super capacitor device is as follows:

[0062] First, the external power supply 3 powers on the super capacitor 2 and the power management chip 4, and the power management chip 4 powers on the PLC controller 1;

[0063] Second, start the operating system and the RTE operating environment 6 of the PLC controller 1. The super capacitor 2 supplies power to the RTE operating environment 6 in real time (intermittently), and realizes the charge and discharge of the super capacitor 2 according to the safe power determination result;

[0064] Third, the power management chip 4 monitors in real time whether the external power supply 3 loses power;

[0065] Fourth, if it is detected that the power is lost, the power management chip 4 transmits a signal to the super capacitor 2, and the super capacitor 2 starts to supply power;

[0066] Fifth, the power management chip 4 transmits a signal to the RTE operating environment 6;

[0067] Sixth, the RTE operating environment 6 starts the electrically erasable programmable read-only memory 7 to save data;

[0068] Seventh, the RTE operating environment 6 starts stop Application, and the operating system shuts down normally;

[0069] Eighth, after the external power supply returns to normal, the data saved in the electrically erasable programmable read-only memory 7 is restored to the RTE operating environment.

[0070] The beneficial effects of the above optional embodiments are as follows: Through the cooperative setting of the super capacitor 2, the electrically erasable programmable read-only memory 7, and the power management chip 4, when the external power supply is cut off, the super capacitor 3 can release the charge in a timely and effective manner, providing a backup power supply for the PLC core circuit, and can provide a power-off protection time of about 10 - 30 seconds to ensure that the PLC core circuit can store the data completely in the permanent memory, thereby realizing the power-off protection and data protection of the PLC control.

[0071] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An external supercapacitor device based on PLC, characterized in that, It includes a PLC controller (1), a super capacitor (2), a plug connector (5) and a power management chip (4). The super capacitor (2) is arranged on the side of the PLC controller (1). The power management chip (4) is connected to the PLC controller (1), and the super capacitor (2) is connected to the power management chip (4) through the plug connector (5).

2. The external supercapacitor device based on PLC according to claim 1, characterized in that The super capacitor (2) includes a capacitor body (22) and a housing (21). The capacitor body (22) is arranged inside the housing (21). The housing (21) is connected to the PLC controller (1), and the capacitor body (22) is connected to the power management chip (4) through the plug connector (5).

3. The external supercapacitor device based on PLC according to claim 1, characterized in that It further includes an external power supply (3). Both the super capacitor (2) and the power management chip (4) are electrically connected to the external power supply (3).

4. The external supercapacitor device based on PLC according to claim 1, characterized in that, The controller includes an electrically erasable programmable read-only memory (7), a memory processor (8) and a CPU central processing unit (9). The electrically erasable programmable read-only memory (7), the memory processor (8) and the CPU central processing unit (9) are all connected to the power management chip (4), and the electrically erasable programmable read-only memory (7) and the memory processor (8) are respectively connected to the CPU central processing unit (9).

5. The external supercapacitor device based on PLC according to claim 2, wherein The super capacitor (2) further includes a clamping ear (24). The clamping ear (24) is arranged on the outer side wall of the housing (21). The housing (21) is connected to the PLC controller (1) through the clamping ear (24).

6. The external supercapacitor device based on PLC according to claim 5, characterized in that The super capacitor (2) further includes a bottom plate (27). The bottom of the housing (21) is connected with the bottom plate (27), and the capacitor body (22) is arranged on the bottom plate (27).

7. The external supercapacitor device based on PLC according to claim 6, characterized in that, The super capacitor (2) further includes a capacitor circuit board (25). The capacitor body (22) is arranged on the capacitor circuit board (25), and the capacitor circuit board (25) is arranged on the bottom plate (27).

8. The external supercapacitor device based on PLC according to claim 7, characterized in that, It further includes a first plug (12) and a second plug (23). The first plug (12) is arranged on the power management chip (4), and the second plug (23) is arranged on the capacitor circuit board (25). The second plug (23) is electrically connected to the capacitor body (22), and the first plug (12) and the second plug (23) are connected through the plug connector (5).

9. The external supercapacitor device based on PLC according to claim 5, characterized in that, A controller housing (11) is arranged on the outer periphery of the PLC controller (1). The housing (21) is connected to the side wall of the controller housing (11) through the clamping ear (24), and the power management chip (4) is arranged inside the controller housing (11).

10. The external supercapacitor device based on PLC according to claim 9, characterized in that, A connection hole (13) is formed on the side wall of the controller housing (11), and the clamping ear (24) is clamped on the side wall of the connection hole (13).

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