Remote control and energy metering device based on refrigerated container

Abstract

The utility model discloses a remote control and energy metering device based on a refrigerated container, and relates to the field of electricity metering of the refrigerated container, the remote control and energy metering device comprises a power supply line connected with a plug-in cable and a relay joint movably arranged between the power supply line and the plug-in cable, and the power supply line is provided with a current and voltage detector. The power supply circuit and the current and voltage detector are both integrated in the shell, the shell is internally provided with a guide assembly which abuts against the relay connector in a sliding mode, and the tail end of the guide assembly is in magnetic fit with a disconnection driving assembly. The occupied area is reduced, and current and voltage detection is carried out in real time to ensure the control of stable power supply of the refrigerated container; the electromagnet is powered on through the controller, so that magnetic repulsive force is generated between the electromagnet and the lifting block, then the guide block and the guide slope generate oblique pushing, and the relay connector and the plug cable are made to be away from the power supply line to form an open circuit.

Description

Technical Field

[0001] The present application relates to the field of electricity metering for refrigerated containers, and in particular to a remote control and energy metering device for refrigerated containers. Background Art

[0002] In the context of cold chain logistics, the innovation of refrigerated container power supply technology has become a core link to ensure the quality and transportation safety of goods. For a long time, shore power supply has been widely used in ports and logistics centers around the world as the main power source for refrigerated containers. However, this traditional power supply method faces many technical and operational challenges. The shore power supply system is affected by factors such as power grid fluctuations, equipment aging and untimely maintenance, which may lead to unstable power supply, thereby affecting the precise control of the internal temperature of the refrigerated container and threatening the storage conditions of temperature-sensitive goods.

[0003] How to detect the instability of power supply in time at the initial stage of connection and cut off the power supply circuit in time and effectively has become a technical problem that technical personnel in this field need to solve urgently; in addition, refrigerated containers also need to be used in conjunction with electric energy meters. If the electric energy meter and the corresponding power supply circuit cutting device occupy too large an area, they cannot be effectively adapted to the smaller application scenario of the container site. Utility Model Content

[0004] This device provides a remote control and energy metering device based on a refrigerated container. The specific implementation is as follows:

[0005] A remote control and energy metering device based on a refrigerated container, comprising:

[0006] A power supply circuit connected to the plug cable, the power supply circuit is provided with a current and voltage detector, and the power supply circuit and the current and voltage detector are integrated in the housing;

[0007] A relay connector is movably arranged between the power supply line and the plug-in cable. A guide component is arranged in the shell and is in sliding contact with the relay connector. The end of the guide component is magnetically matched with a disconnection drive component. When the current and voltage detector detects that the power supply of the power supply line is abnormal, the disconnection drive component generates a magnetic thrust on the guide component to disconnect the power supply line from the relay connector.

[0008] Preferably, it also includes a controller, whose signal input end is electrically connected to the current and voltage detector, whose output end is electrically connected to the disconnect drive component, and the controller is also connected to a remote control center through a communicator.

[0009] Based on the above technical solution, the design integrates the current and voltage detector with the mechanical disconnection structure of the power supply line. Integrating the two in one unit can significantly reduce the required space. After integration, the changes in current and voltage can be monitored in real time. Once an abnormality is detected, such as overload, short circuit or voltage fluctuation, it can respond immediately and automatically disconnect the power supply line to prevent potential electrical faults from causing damage to the refrigerated container and its internal goods; due to the reduction of external connection points and interfaces, the complexity of the entire system is reduced, thereby improving its stability and reliability. The current and voltage detector is a general term for ammeters and voltmeters, which are connected to the power supply line in series and parallel respectively to realize the collection of current and voltage.

[0010] Preferably, the shell comprises a first chamber and a second chamber which are independent of each other, the current and voltage detector is arranged in the first chamber, and both sides of the second chamber are configured as open structures for inserting power supply lines and plug cables.

[0011] Preferably, a second plug and a third plug that are electrically connected are provided on both sides of the relay connector, a limit groove is horizontally provided in the second chamber, a limit rod is slidably connected to the limit groove is provided on the relay connector, and the second plug and the third plug are respectively plugged into the front end of the plug cable and the power supply line.

[0012] Based on the above technical solution, the front ends of the plug-in cable and the power supply line are designed to correspond axially, and the center lines of the two are kept on the same straight line, ensuring that the plug-in cable can be accurately aligned with the power supply line during the connection process, thereby achieving accuracy and reliability of the electrical connection; in order to ensure the stability of the relay connector during the translation process, a limit groove and front and rear limit rods are provided. When the relay connector moves, the limit rod will slide in the limit groove to limit the movement trajectory of the relay connector to prevent it from shifting or shaking during the axial movement, thereby ensuring stability and accuracy during the connection process and preventing connection failure due to mechanical vibration or external force.

[0013] Preferably, axially corresponding vertical through pipes are respectively provided on the upper and lower sides of the second chamber, and the guide assembly includes a lifting block vertically slidably arranged in the vertical through pipe, and the two are connected by a spring.

[0014] Preferably, a guiding inclined surface with gradually decreasing diameter along the axial direction is provided in the middle of the relay joint, and an inclined guiding block is provided on the side of the lifting block facing the relay joint, and the guiding block is in sliding contact with the guiding inclined surface.

[0015] Preferably, the end of the lifting block facing away from the relay connector is set as a permanent magnetic surface, and the disconnection drive component includes an electromagnet arranged at the end of the vertical through pipe, and its electromagnetic surface vertically corresponds to the permanent magnetic surface.

[0016] Based on the above technical solution, the electromagnet is powered, which will cause it to generate a magnetic field. The magnetic strength of the electromagnet is proportional to the current passing through its coil. By adjusting the current, the strength of the electromagnet's magnetism can be controlled. When the electromagnet is energized, a magnetic repulsive force will be generated between it and the lifting block. Then the guide block will obliquely push the guide ramp. The movement of the guide ramp will cause the relay connector and the plug-in cable to separate from the power supply line. Separation means that the circuit is physically disconnected, thereby cutting off the flow of current. This state can effectively prevent current from passing.

[0017] Preferably, a display panel is provided on the outer side of the housing, and the display panel is electrically connected to the controller.

[0018] Preferably, the display panel, the controller, the electromagnet and the current and voltage detector are all connected to independent power supplies.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] 1. The utility model integrates the current and voltage detector with the mechanical disconnection structure of the power supply line, thereby reducing the footprint and performing real-time current and voltage detection to ensure the control of stable power supply to the refrigerated container;

[0021] 2. In the utility model, the front ends of the plug-in cable and the power supply line are axially corresponding, and the relay connector can connect the plug-in cable and drive it axially to connect with the power supply line; the limit groove and the limit rod can ensure the stability of the relay connector in translation;

[0022] 3. The utility model has a simple structure. The controller energizes the electromagnet, so that a magnetic repulsion force is generated between the electromagnet and the lifting block, and then the guide block and the guide inclined surface are obliquely pushed, so that the relay connector and the plug cable are away from the power supply line to form a circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the explosion structure of the utility model Figure 1 ;

[0025] Figure 3 This is a schematic diagram of the explosion structure of the utility model Figure 2 ;

[0026] Figure 4 It is a cross-sectional view of the side structure of the utility model;

[0027] Figure 5 It is a cross-sectional view of the right side structure of the utility model;

[0028] Figure 6It is a cross-sectional view of the structure of the disconnecting drive assembly and the guide assembly in the utility model.

[0029] Description of reference numerals:

[0030] 1. Shell, 2. Power supply line, 3. Plug cable, 4. Disconnect drive assembly, 5. Display panel, 6. Relay connector, 7. Guide assembly, 8. Current and voltage detector, 9. Controller, 101. First chamber, 102. Second chamber, 103. Vertical through pipe, 104. Limiting groove, 301. Cable, 302. Plug-in part, 303. First plug, 401. Electromagnet, 402. Electromagnetic surface, 601. Second plug, 602. Third plug, 603. Guide slope, 604. Limiting rod, 701. Lifting block, 702. Spring, 703. Guide block, 704. Permanent magnetic surface. DETAILED DESCRIPTION

[0031] The following describes the specific implementation of the utility model in conjunction with the accompanying drawings and embodiments:

[0032] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0033] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The embodiment of the present application discloses a remote control and energy metering device based on a refrigerated container.

[0036] Example 1

[0037] Reference Figures 1 to 4The present embodiment discloses a remote control and energy metering device based on a refrigerated container, comprising a controller 9, a shell 1, a power supply line 2 connected to a plug cable 3, and a relay connector 6 movably arranged between the power supply line 2 and the plug cable 3, a current and voltage detector 8 is arranged on the power supply line 2, the power supply line 2 and the current and voltage detector 8 are both integrated in the shell 1, a guide component 7 is arranged in the shell 1 for slidingly abutting against the relay connector 6, and a disconnection drive component 4 is magnetically matched at the end of the guide component 7, in this structure, the signal input end of the controller 9 is electrically connected to the current and voltage detector 8, and its output end is electrically connected to the disconnection drive component 4, and the controller 9 is also connected to a remote control center through a communicator.

[0038] The shell 1 has a first chamber 101 and a second chamber 102 which are independent of each other. The current and voltage detector 8 is arranged in the first chamber 101. Both sides of the second chamber 102 are set as open structures for inserting the power supply line 2 and the plug cable 3. In this structure, a display panel 5 is provided on the outer side of the shell 1. The display panel 5 is electrically connected to the controller 9, and the display panel 5, the controller 9, the electromagnet 401 and the current and voltage detector 8 are all connected to an independent power supply.

[0039] Example 2

[0040] Reference Figure 1 Based on the above embodiments, the present embodiment further discloses a remote control and energy metering device based on a refrigerated container, wherein the front portion of the cable 301 of the plug-in cable 3 is provided with a first plug 303 plugged into the relay connector 6, and the middle section of the cable 301 is provided with a split structure consisting of a plug-in portion 302, and the plug-in portion 302 is wrapped with an insulating tape. When the plug-in cable 3 is subjected to a large plug-in force, the plug-in portion 302 is broken open to prevent the cable 301 from being irreversibly torn off.

[0041] Example 3

[0042] Reference Figures 1 to 6 Based on the above embodiments, the present embodiment further discloses a remote control and energy metering device based on a refrigerated container, wherein a second plug 601 and a third plug 602 which are electrically connected are arranged on both sides of the relay connector 6, a limit groove 104 is horizontally arranged in the second chamber 102, a limit rod 604 which is slidably connected to the limit groove 104 is arranged on the relay connector 6, the second plug 601 and the third plug 602 are respectively plugged into the front end of the plug cable 3 and the power supply line 2, and axially corresponding vertical through pipes 103 are respectively arranged above and below the second chamber 102 in the present structure, the guide assembly 7 comprises a lifting block 701 which is vertically slidably arranged in the vertical through pipe 103, and the two are connected by a spring 702.

[0043] A guiding inclined surface 603 with gradually decreasing diameter along the axial direction is provided in the middle part of the relay connector 6, and an inclined guiding block 703 is provided on the side of the lifting block 701 facing the relay connector 6, and the guiding block 703 is slidably abutted against the guiding inclined surface 603. In this structure, the end of the lifting block 701 facing away from the relay connector 6 is set as a permanent magnetic surface 704, and the disconnecting drive assembly 4 includes an electromagnet 401 arranged at the end of the vertical through pipe 103, and its electromagnetic surface 402 corresponds vertically to the permanent magnetic surface 704.

[0044] The specific implementation process is: plug the plug cable 3 into the relay connector 6 by hand, and further push the plug cable 3; make the relay connector 6 act on the guide block 703, so that the lifting block 701 moves outward and the spring 702 is compressed, and the relay connector 6 is plugged into the power supply line 2. At this time, the power supply line 2, the relay connector 6 and the plug cable 3 are connected; when an abnormal value of the power supply line 2 is detected, the controller 9 controls the electromagnet 401 to be energized, and a magnetic repulsion force is generated between the electromagnet 401 and the permanent magnetic surface 704, so that the relay connector 6 and the plug cable 3 are retracted from the power supply line 2, so that the power supply to the refrigerated container is stopped.

[0045] Many other changes and modifications can be made without departing from the concept and scope of the utility model. It should be understood that the utility model is not limited to a specific embodiment, and the scope of the utility model is defined by the appended claims.

Claims

1. A remote control and energy metering device based on a refrigerated container, characterized in that: include: A power supply line (2) connected to the plug cable (3), the power supply line (2) being provided with a current and voltage detector (8), the power supply line (2) and the current and voltage detector (8) being integrated into the housing (1); A relay connector (6) is movably arranged between the power supply line (2) and the plug cable (3); a guide component (7) is provided in the housing (1) and is in sliding contact with the relay connector (6); and a disconnection drive component (4) is magnetically matched at the end of the guide component (7); when the current and voltage detector (8) detects that the power supply of the power supply line (2) is abnormal, the disconnection drive component (4) generates a magnetic thrust on the guide component (7) to disconnect the power supply line (2) from the relay connector (6).

2. According to claim 1, a remote control and energy metering device based on a refrigerated container is characterized in that: It also includes a controller (9), whose signal input end is electrically connected to the current and voltage detector (8), whose output end is electrically connected to the disconnection drive component (4), and the controller (9) is also connected to a remote control center via a communicator.

3. According to claim 2, a remote control and energy metering device based on a refrigerated container is characterized in that: The housing (1) comprises a first chamber (101) and a second chamber (102) which are independent of each other, and the current and voltage detector (8) is arranged in the first chamber (101); Both sides of the second chamber (102) are configured as open structures for inserting the power supply line (2) and the plug cable (3).

4. The remote control and energy metering device based on a refrigerated container according to claim 3 is characterized in that: The relay connector (6) is provided with a second plug (601) and a third plug (602) which are electrically connected on both sides; the second chamber (102) is horizontally provided with a limit groove (104); the relay connector (6) is provided with a limit rod (604) which is slidably connected to the limit groove (104); the second plug (601) and the third plug (602) are respectively plugged into the front end of the plug cable (3) and the power supply line (2).

5. The remote control and energy metering device based on a refrigerated container according to claim 4 is characterized in that: Axially corresponding vertical through pipes (103) are respectively provided above and below the second chamber (102); the guide assembly (7) comprises a lifting block (701) vertically slidably arranged in the vertical through pipe (103), and the two are connected via a spring (702).

6. The remote control and energy metering device based on a refrigerated container according to claim 5 is characterized in that: The relay joint (6) is provided with a guide inclined surface (603) whose diameter gradually changes along the axial direction in the middle part, and the lifting block (701) is provided with an inclined surface-shaped guide block (703) on the side facing the relay joint (6), and the guide block (703) is in sliding contact with the guide inclined surface (603).

7. The remote control and energy metering device based on a refrigerated container according to claim 6 is characterized in that: The end of the lifting block (701) facing away from the relay connector (6) is provided as a permanent magnetic surface (704), and the disconnection drive assembly (4) comprises an electromagnet (401) provided at the end of the vertical through pipe (103), and its electromagnetic surface (402) vertically corresponds to the permanent magnetic surface (704).

8. The remote control and energy metering device based on a refrigerated container according to claim 7 is characterized in that: A display panel (5) is provided on the outer side of the housing (1), and the display panel (5) is electrically connected to the controller (9).

9. The remote control and energy metering device based on a refrigerated container according to claim 8 is characterized in that: The display panel (5), the controller (9), the electromagnet (401) and the current and voltage detector (8) are all connected to an independent power supply.

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