A multi-channel power measuring instrument with current sensor power supply function

Abstract

The present invention relates to the field of power measurement technology, and in particular to a multi-channel power measuring instrument with a current sensor power supply function, comprising a main body component, which includes a shell and a detection module for performing real-time detection and analysis of an object to be measured, so as to avoid the situation where a certain type of input interface is insufficient, and a spare adapter is provided. These adapters are installed on the door panel of the spare input interface. Such a design enables the door panel to have multiple functions. First, when the door panel is closed, it can protect the spare input interface and the adapter in the cavity to prevent them from being damaged by dust, debris, etc.; second, a groove is provided on the door panel for accommodating a mounting plate of the spare adapter, so that the adapter can be stored in order; third, after the door panel is opened, it is flipped to a horizontal state and can be used as an operating platform, which is convenient for the operator to select and operate the adapter; fourth, the door panel can also support the mounting plate and the adapter in the open state to ensure the stability of the operation.

Description

Technical Field

[0001] The present invention relates to the technical field of power measurement, in particular to a multi-channel power measuring instrument with a current sensor power supply function. Background Art

[0002] Multi-channel power meters with current sensor power supply capabilities typically come with a certain number of input interfaces to meet basic connection requirements. For example, a fixed number of USB ports, DC ports, and other interfaces are typically located on the back of the housing to connect to the device under test or external devices. The location and number of these interfaces are determined during device design and manufacturing to accommodate common usage scenarios. However, with technological advancements and the diversification of application scenarios, the device may encounter insufficient input interfaces during actual use. For example, when performing multi-channel measurements or connecting to multiple different types of devices, the existing number of input interfaces may not meet the needs, necessitating the addition of separate adapter expansion devices.

[0003] Currently, when a device's input ports are insufficient, users often need to carry and manually connect adapters to the device. This not only increases the complexity of the process but can also lead to the adapter being lost or damaged. This means users need to spend extra time and effort finding and connecting a backup adapter when needed, reducing the device's efficiency and convenience. Therefore, addressing the issue of insufficient input ports in device design while facilitating user management and use of backup adapters has become a pressing technical challenge. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that when a spare adapter is needed, the user needs to spend extra time and energy to find and connect it, which reduces the efficiency and convenience of using the device.

[0005] The above technical problem is solved by the following technical solution: The present invention proposes a multi-channel power measuring instrument with a current sensor power supply function, comprising a main body component, which includes a housing and a detection module for performing real-time detection and analysis of an object to be measured;

[0006] The input component is connected to the detection module and is used to connect the object to be tested and the detection module. It includes several fixed input interfaces and multiple spare adapters. The adapters are used to convert the types of various input interfaces. The adapters are stored on the door panel of the cavity on the back of the shell. The adapters on the door panel are independently placed and controlled.

[0007] In a preferred embodiment of the multi-channel power meter with current sensor power supply function described in the present invention: a cavity for accommodating a spare input interface is provided on the back of the shell, and a door panel that can be rotated outward to open is provided at the entrance of the cavity, and its spare input interface is divided into a USB interface and a DC interface.

[0008] In a preferred embodiment of the multi-channel power meter with current sensor power supply function described in the present invention: a first rotating rod is provided at the lower end of both sides of the door panel, and the door panel is flipped with the first rotating rod as the rotating axis, and an arc-shaped guide strip is provided at the upper end of the door panel, which cooperates with the protrusion at the entrance of the cavity.

[0009] In a preferred embodiment of the multi-channel power meter with current sensor power supply function of the present invention: a plurality of mounting plates for the adapter are evenly spaced on the door panel, the mounting plates correspond one-to-one to the adapters, and the mounting plates can be flipped outward on the door panel.

[0010] In a preferred embodiment of the multi-channel power meter with current sensor power supply function of the present invention: a plurality of slots are provided on the door panel, each of the mounting plates is installed in one of the slots, the mounting plate is rotatably connected to the slot via a second rotating rod at the lower end, and the mounting plate has the same cross-sectional area as the slot, and the mounting plate is clamped in the slot.

[0011] In a preferred embodiment of the multi-channel power meter with current sensor power supply function described in the present invention: both ends of the first rotating rod and the second rotating rod are provided with convex keys, the first rotating rod cooperates with the groove in the rotating hole of the cavity entrance, and the second rotating rod cooperates with the groove in the rotating hole of the slot, the first rotating rod rotates in the door panel, and the second rotating rod rotates in the mounting plate.

[0012] In a preferred embodiment of the multi-channel power meter with current sensor power supply function described in the present invention: a first cavity is provided in the door panel at each of the notches, a latch is slidingly provided in the first cavity, a convex ring is provided in the first cavity, a first spring for pushing the latch down is provided between the convex ring and the latch, the upper end of the latch corresponds to the socket at the bottom of the mounting plate, a first groove with a gradual depth is provided on the outer wall of the first rotating rod along the outer circumference, and the lower end of the latch slides along the first groove.

[0013] In a preferred embodiment of the multi-channel power meter with current sensor power supply function described in the present invention: two symmetrical clamps are arranged on the mounting plate, and the two clamps slide along the limit grooves opened on the mounting plate through sliding feet, and a second spring for pushing the two clamps to close is arranged in each of the limit grooves, and a trapezoidal head for locking the position of the sliding foot is arranged on the outer side of the sliding foot, and a straight rod is provided on the lower surface of the trapezoidal head, and the lower end of the straight rod is located in a second groove with a depth gradient provided on the outer circumference of the outer wall of the second rotating rod.

[0014] In a preferred embodiment of the multi-channel power meter with current sensor power supply function of the present invention: the clamp includes a main board and a sub-board, the sub-board is rotatably mounted on the main board through a connecting plate, and the angle between the main board and the sub-board is adjustable and fixed by bolts.

[0015] In a preferred embodiment of the multi-channel power meter with current sensor power supply function of the present invention, the input interface includes a wiring terminal for connecting the current and voltage signals of the circuit under test, the current signal is converted into a voltage signal by the current sensor and then input into the power meter through the wiring terminal; the voltage signal is input through the wiring terminal;

[0016] Adapters include power terminals and DC converters, USB and DC converters, etc.

[0017] The beneficial effects of the present invention are as follows: the present application effectively avoids the situation where a certain type of input interface is insufficient through ingenious design. Specifically, in order to avoid this problem, spare adapters are provided. These adapters are installed in the entire device and are located on the door panel of the spare input interface. This design enables the door panel to have multiple functions. First, when the door panel is closed, it can protect the spare input interface and the adapter in the cavity to prevent them from being damaged by dust, debris, etc.; second, the door panel is provided with a groove for accommodating the mounting plate of the spare adapter, so that the adapters are stored in order to avoid loss and keep the device tidy; third, after the door panel is opened, it is flipped to a horizontal state and can be used as an operating platform, which is convenient for the operator to select and operate the adapter; fourth, the door panel can also support the mounting plate and the adapter in the open state to ensure the stability of operation; fifth, the door panel is connected to the cavity through a first rotating rod and is provided with a structure that cooperates with the mounting plate to achieve locking and unlocking of the mounting plate, thereby completing the fixing and release of the adapter. The structural design is ingenious and the functions are diverse, which effectively improves the practicality and convenience of the device and achieves multiple goals at one stroke.

[0018] Furthermore, to facilitate access to the adapter within the device, the door panel is divided into multiple mounting plates, each corresponding to an adapter. By leveraging the door panel and mounting plates, the mounting plates and the fixture can be unlocked, making operation extremely convenient and straightforward. The entire design embodies a progressive approach, from providing a spare adapter, to properly mounting it on the door panel, to designing a structure that facilitates access and use. This progressive approach ultimately allows for the quick and convenient addition of corresponding input interfaces when needed, significantly improving the device's applicability and convenience while effectively resolving the issue of insufficient input interfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0020] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the internal structure of the back cavity of the housing of the present invention;

[0023] Figure 4 This is a schematic diagram of clamping the adapter on the door panel of the present invention;

[0024] Figure 5 Schematic diagram of the clamp of the present invention.

[0025] Figure 6 for Figure 4 Cross-sectional structural diagram of the middle part;

[0026] Figure 7 Schematic diagram of the second groove structure on the second rotating rod of the present invention;

[0027] Figure 8 for Figure 6 A schematic diagram of the structure at center A;

[0028] Figure 9 for Figure 6 Enlarged schematic diagram of the structure at point B in the middle.

[0029] In the picture:

[0030] 1. Main body; 11. Housing; 111. Cavity; 112. Door panel; 12. Detection module; 1121. First rotating rod; 1122. Arc guide strip; 1123. Notch; 1124. First cavity; 1125. Latch; 1126. Raised ring; 1127. First spring; 1128. First slot; 113. Mounting plate; 1131. Second rotating rod; 1132. Insertion hole; 1133. Limiting slot; 1134. Second spring; 1135. Trapezoidal head; 1136. Straight rod; 1137. Second slot; 114. Clamp; 1141. Sliding foot; 1142. Main board; 1143. Sub-board; 1144. Connecting plate;

[0031] 2. Input component; 21. Input interface; 22. Adapter. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0033] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0034] Reference Figure 1-Figure 4 This embodiment provides a multi-channel power meter with a current sensor power supply function, including a main body component 1, which includes a shell 11 and a detection module 12 for performing real-time detection and analysis of an object to be measured; an input component 2, connected to the detection module 12, for connecting the object to be measured and the detection module 12, which includes a plurality of fixed input interfaces 21 and a plurality of spare adapters 22, the spare adapters 22 being used to convert the types of each input interface 21, and the spare adapters 22 being stored on a door panel 112 of a cavity 111 on the back of the shell 11, and each spare adapter 22 on the door panel 112 is independently placed and controlled.

[0035] In this embodiment, the shell 11 of the main part 1: as the external structure of the entire device, it plays the role of protecting internal components, providing physical support, and facilitating the operator to hold or place it. Its design usually takes into account factors such as heat dissipation, dustproofing, and waterproofing to ensure stable operation of the device in various environments.

[0036] The detection module 12 of the main unit 1 is responsible for real-time detection and analysis of the object being measured. It contains a variety of sophisticated electronic components and circuits, capable of collecting, processing, and analyzing input signals such as current and voltage, thereby deriving measurement data related to power and phase. For example, a high-speed analog-to-digital converter converts analog signals into digital signals, and then a microprocessor or dedicated measurement chip performs complex calculations and analysis to achieve high-precision power measurement.

[0037] The fixed input interface 21 of the input component 2 includes the following: connection terminals, DC interface, USB interface, RS-232 interface, Ethernet interface, BNC signal output interface, trigger signal input interface 21, etc., and are all set on the back of the shell 11.

[0038] Terminal blocks: These are used to connect the current and voltage signals of the circuit under test. In actual measurements, current signals typically need to be converted using a current sensor (such as a current clamp or shunt) to a proportional voltage signal, which is then input into the power meter through the terminal blocks. Voltage signals, on the other hand, can be input directly through the terminal blocks, conveniently connecting the circuit under test to the power meter and enabling measurement of circuit parameters.

[0039] DC interface: Mainly used to provide DC power to the power meter. It converts the AC power grid into stable DC power to power the device's internal circuits and components, ensuring proper operation. The DC interface also powers external current sensors, ensuring stable operation and improving measurement accuracy and reliability.

[0040] USB port: Used for data transmission and communication with computers or other devices. The USB port allows the power meter to transfer measured data to a computer for further analysis, storage, and processing, making it easier for users to manage and utilize the measured data. The USB port can also power external devices, such as small measurement accessories or mobile devices, increasing the device's convenience and practicality.

[0041] RS-232 interface: Primarily used for serial communication, it connects the power meter to a computer or other device for data transmission and control. It supports multiple communication protocols, such as Modbus RTU, enabling devices to communicate using standardized protocols, ensuring reliable data transmission and remote control of devices.

[0042] Ethernet interface: For network communication, the power meter can be connected to a local area network or the internet for remote monitoring and data transmission. Through the Ethernet interface, users can access the power meter remotely via the network, obtain real-time measurement data, and perform remote configuration and control, greatly expanding the device's range and flexibility. It supports multiple communication protocols, such as Modbus TCP and EIP, ensuring compatibility and interoperability with a wide range of network devices and systems.

[0043] BNC signal output port: This port outputs measurement signals, such as voltage and current. These output signals can be connected to other equipment, such as an oscilloscope and power analyzer, for further analysis and processing. For example, by connecting an oscilloscope, you can observe the signal waveform and understand its characteristics, such as frequency and amplitude, providing support for more in-depth measurement and analysis.

[0044] Trigger signal input interface 21: Used to input an external trigger signal for synchronized measurement. In complex measurement scenarios, synchronized measurement with other devices or systems is required. The trigger signal input interface 21 receives an external trigger signal, enabling the power meter to start measurement at a specific moment, ensuring measurement accuracy and reliability, and improving the repeatability and comparability of measurement results.

[0045] The backup adapter 22 includes a power terminal and a DC converter, a USB and a DC converter, etc.

[0046] Power connector and DC converter: This adapter 22 converts input power from the power connector into DC power to power a power meter or other device. For example, in applications where direct DC power is not available, the power connector can be connected to an AC power source, which can then be converted to DC power using the power connector and DC converter to meet the power needs of the device.

[0047] USB-to-DC Converter: This adapter 22 converts power from the USB port into DC power for powering external current sensors or other devices. Because USB ports typically provide limited voltage and current, a USB-to-DC converter can appropriately convert and regulate USB power to meet the power requirements of external devices, increasing device power supply flexibility and compatibility.

[0048] Reference Figure 3-Figure 9 In some embodiments, a cavity 111 for accommodating a backup input interface 21 is provided on the back of the shell 11, and a door panel 112 that can be rotated outward to open is provided at the entrance of the cavity 111. The backup input interface 21 is divided into a USB interface and a DC interface. The backup adapter 22 is stored on the door panel 112 of the cavity 111 on the back of the shell 11, and each backup adapter 22 on the door panel 112 is independently placed and controlled.

[0049] It should be noted that on the back of the shell 11 of the power meter, a cavity 111 is specially provided for accommodating the spare input interface 21. This design allows the device to have reserved space to place the corresponding spare adapter 22 when the input interface 21 needs to be expanded, ensuring the scalability and flexibility of the device and facilitating the addition and adjustment of interfaces according to actual measurement needs.

[0050] To protect the backup input interface 21 and backup adapter 22 within the cavity 111 and to facilitate access when needed, a door panel 112 that pivots outward is provided at the entrance to the cavity 111. The door panel 112 not only provides protection by preventing dust and debris from entering the cavity 111 and potentially damaging or interfering with the backup input interface 21 and adapter 22, but also ensures the neatness and integrity of the device's appearance.

[0051] The spare adapter 22 is stored on the door panel 112 of the cavity 111 on the back of the housing 11. This design closely associates the spare adapter 22 with the spare input interface 21, making it easy for the operator to quickly find and access the adapter 22 when needed. Furthermore, each spare adapter 22 on the door panel 112 is independently positioned and controlled, meaning each spare adapter 22 has its own independent fixing and release mechanism. This allows the operator to select and use a spare adapter 22 based on actual needs without affecting the storage status of other adapters 22, thereby improving operational convenience and flexibility. It also prevents other adapters 22 from falling or being damaged due to accidental contact during operation.

[0052] The backup input interface 21 within the cavity 111 is available in two types: a USB interface and a DC interface. The USB interface is primarily used for data transmission and communication, such as transferring measurement data to a computer for further analysis and processing, and can also provide power to external devices. The DC interface is primarily used to provide DC power to the device, converting AC power to DC to power the device's internal circuits and components, and can also power external current sensors to ensure their proper operation. The provision of these two backup input interfaces 21 allows the device to meet diverse needs when expanding its input functionality, enhancing its applicability and versatility.

[0053] A first rotating rod 1121 is provided at the lower end of both sides of the door panel 112, and the door panel 112 is flipped with the first rotating rod 1121 as the rotating axis. An arc-shaped guide strip 1122 is provided at the upper end of the door panel 112, and the arc-shaped guide strip 1122 cooperates with the protrusion at the entrance of the cavity 111.

[0054] It should be noted that the first rotating rods 1121 provided on both sides of the door panel 112, near the lower end, serve as the rotating axis for the door panel 112 to flip outward, allowing the door panel 112 to be flipped open with the rotating rods as the axis, making it easier for the operator to operate the backup input interface 21 and the adapter 22 inside the cavity 111. The curved guide strips 1122 provided on the upper end of the door panel 112 cooperate with the protrusions at the entrance of the cavity 111. When the door panel 112 is closed, the curved guide strips 1122 will fit tightly along the shape of the protrusions, not only guiding the door panel 112 to close accurately, but also enhancing the sealing between the door panel 112 and the cavity 111, effectively preventing dust, debris, etc. from entering the cavity 111 and damaging the backup interface and the adapter 22. At the same time, when the door panel 112 is opened, it can also smoothly flip along the predetermined trajectory, avoiding jamming or deviation, thereby ensuring the convenience of operation and the reliability of the equipment.

[0055] Multiple mounting plates 113 for the spare adapters 22 are evenly spaced on the door panel 112. Each mounting plate 113 corresponds to each spare adapter 22 and can be flipped outward on the door panel 112. Multiple slots 1123 are formed on the door panel 112, and each mounting plate 113 is mounted within one of the slots 1123. The mounting plates 113 are rotatably connected to the slots 1123 via a second rotating rod 1131 at their lower ends. The mounting plates 113 have the same cross-sectional area as the slots 1123, and are locked within the slots 1123.

[0056] It should be noted that multiple mounting plates 113 for mounting the spare adapters 22 are evenly spaced on the door panel 112. Each mounting plate 113 corresponds to a spare adapter 22, and these mounting plates 113 can be flipped open outward to facilitate access to the spare adapters 22. The door panel 112 also has multiple slots 1123 that match the number of mounting plates 113. Each mounting plate 113 is mounted in a corresponding slot 1123 and is rotatably connected to the slot 1123 via a second rotating rod 1131 at its lower end. The cross-sectional area of ​​the mounting plate 113 is the same as that of the notch 1123, so that the mounting plate 113 can be tightly stuck in the notch 1123. When the spare adapter 22 is not needed, the mounting plate 113 remains closed, which protects the spare adapter 22 and makes the overall appearance of the door panel 112 more neat and orderly. When the spare adapter 22 is needed, the corresponding mounting plate 113 can be flipped outward to open it, so that the spare adapter 22 can be easily taken out for use.

[0057] Both ends of the first rotating rod 1121 and the second rotating rod 1131 are provided with convex keys. The first rotating rod 1121 cooperates with the groove in the rotating hole at the entrance of the cavity 111, and the second rotating rod 1131 cooperates with the groove in the rotating hole of the notch 1123. The first rotating rod 1121 rotates in the door panel 112, and the second rotating rod 1131 rotates in the mounting plate 113.

[0058] A first cavity 1124 is provided at each notch 1123 in the door panel 112, a latch 1125 is slidingly provided in the first cavity 1124, a convex ring 1126 is provided in the first cavity 1124, a first spring 1127 for pushing the descent is provided between the convex ring 1126 and the latch 1125, the upper end of the latch 1125 corresponds to the socket 1132 at the bottom of the mounting plate 113, the outer wall of the first rotating rod 1121 is provided with a first groove 1128 with a gradual depth along the outer circumference, and the lower end of the latch 1125 slides along the first groove 1128.

[0059] Two symmetrical clamps 114 are arranged on the mounting plate 113, and the two clamps 114 slide along the limiting groove 1133 opened on the mounting plate 113 through the sliding foot 1141. A second spring 1134 is arranged in each limiting groove 1133 for pushing the two clamps 114 to close. A trapezoidal head 1135 is arranged on the outer side of the sliding foot 1141 for locking the position of the sliding foot 1141. A straight rod 1136 is arranged on the lower surface of the trapezoidal head 1135. The lower end of the straight rod 1136 is located in a second groove 1137 with a gradient depth arranged on the outer circumference of the outer wall of the second rotating rod 1131.

[0060] It should be noted that the arrangement and coordination of the rotating rods are as follows: both ends of the first rotating rod 1121 and the second rotating rod 1131 are provided with a key. The first rotating rod 1121 cooperates with the groove in the rotating hole at the entrance of the cavity 111, allowing the first rotating rod 1121 to rotate within the door panel 112, thereby achieving the flip opening and closing of the door panel 112. Similarly, the second rotating rod 1131 cooperates with the groove in the rotating hole of the notch 1123, allowing the second rotating rod 1131 to rotate within the mounting plate 113, thereby controlling the flipping action of the mounting plate 113. This design ensures the stability and accuracy of the door panel 112 and the mounting plate 113 during rotation.

[0061] Coordination between the latch 1125 and the spring: a first cavity 1124 is provided at each notch 1123 in the door panel 112, and a latch 1125 is slidably provided in the first cavity 1124. At the same time, a convex ring 1126 is provided in the cavity, and a first spring 1127 is installed between the convex ring 1126 and the latch 1125 to push the latch 1125 down. The upper end of the latch 1125 corresponds to the socket 1132 at the bottom of the mounting plate 113. When the mounting plate 113 is in a flush state, the latch 1125 is inserted into the socket 1132 under the action of the first spring 1127 to lock the mounting plate 113. The outer wall of the first rotating rod 1121 is provided with a first groove 1128 with a gradual depth along the outer circumference. The lower end of the latch 1125 slides along the first groove 1128. As the door panel 112 rotates, the position of the first rotating rod 1121 changes, and the sliding depth of the latch 1125 in the first groove 1128 also changes, thereby realizing the unlocking operation of the mounting plate 113, so that the mounting plate 113 can be pulled.

[0062] Clamp 114 and Slider Configuration: Two symmetrical clamps 114 are installed on the mounting plate 113 to secure the backup adapter 22. These clamps 114 slide along retaining slots 1133 defined in the mounting plate 113 via sliding feet 1141. Each retaining slot 1133 contains a second spring 1134, which pushes the two clamps 114 together and secures the backup adapter 22. A trapezoidal head 1135 is located on the outside of the sliding foot 1141 to lock the position of the sliding foot 1141. A straight rod 1136 is installed on the lower surface of the trapezoidal head 1135. The lower end of this straight rod 1136 is located within a second groove 1137, which is formed along the outer circumference of the second rotating rod 1131 and has a gradually varying depth. When the mounting plate 113 rotates, the position of the second rotating rod 1131 changes, and the sliding depth of the straight rod 1136 in the second groove 1137 also changes, thereby unlocking the position of the trapezoidal head 1135, allowing the slider to move along the limiting groove 1133, thereby driving the clamp 114 to move outward, making it easier to pull the spare adapter 22 out of the clamp 114.

[0063] The clamp 114 includes a main plate 1142 and a sub-plate 1143 . The sub-plate 1143 is rotatably mounted on the main plate 1142 via a connecting plate 1144 . The angle between the main plate 1142 and the sub-plate 1143 is adjustable and fixed by bolts.

[0064] It should be noted that the clamp 114 is composed of a main plate 1142 and a sub-plate 1143. The sub-plate 1143 is rotatably mounted on the main plate 1142 via a connecting plate 1144, so that the angle between the sub-plate 1143 and the main plate 1142 can be adjusted. This angle adjustment is controlled by bolts. When the angle needs to be adjusted, the bolts are loosened, and the sub-plate 1143 can be rotated around the main plate 1142 via the connecting plate 1144, thereby changing the angle between the main plate 1142 and the main plate 1142. After adjusting to the appropriate angle, the bolts are tightened again to fix the angle between the main plate 1142 and the sub-plate 1143. This design makes the clamp 114 more flexible during use. It can not only squeeze and clamp the adapter 22 from both sides, but also support the contracted portion at the bottom of the adapter 22 through the inclined sub-plate 1143, thereby ensuring the firmness of the adapter 22 clamping and effectively preventing the adapter 22 from loosening or falling off during use.

[0065] Reference Figures 1-9 , workflow:

[0066] When a certain type of input interface 21 on the back of the housing 11 is insufficient, the following operations can be performed to add an input interface 21 of this type:

[0067] Open the door panel 112 , and the door panel 112 rotates 90 degrees around the first rotating rod 1121 on the lower side, changing from a vertical state to a horizontal state, so that the operator can select various types of converter heads installed on the inner side of the door panel 112 .

[0068] After selecting the corresponding adapter 22, pull the mounting plate 113 corresponding to the adapter on the door panel 112. The mounting plate 113 rotates with the second rotating rod 1131 at the lower end as the axis, and switches from a flush state with the door panel 112 to a perpendicular state with the door panel 112. The reason for the turning is that the two ends of the first rotating rod 1121 cooperate with the key slots of the rotating hole of the cavity 111. When the door panel 112 rotates, the first rotating rod 1121 does not rotate. Then, the latch 1125 located in the door panel 112 for locking the state of the mounting plate 113 descends under the action of its own first spring 1127. The lower end penetrates into the first groove 1128 provided on the outer wall of the first rotating rod 1121, which gradually changes in depth along the outer circumference. The upper end disengages from the socket 1132 at the bottom of the mounting plate 113, unlocking the mounting plate 113. Since the cross-sectional area between the mounting plate 113 and the notch 1123 is the same, and the mounting plate 113 is stuck in the notch 1123, the mounting plate 113 will not flip out of the notch 1123 when there is no external force. Therefore, except for the moving mounting plate 113, the mounting plates 113 corresponding to other conversion heads remain in place.

[0069] When the mounting plate 113 is turned 90 degrees, the second rotating rod 1131 does not rotate when the mounting plate 113 rotates because the two ends of the second rotating rod 1131 are engaged with the key slots of the rotating hole of the notch 1123. Moreover, the outer wall of the second rotating rod 1131 is provided with a second groove 1137 with a gradually changing depth along the outer circumference. When the straight rod 1136 rotates, the lower end of the straight rod 1136 gradually penetrates into the second groove 1137. When the straight rod 1136 descends, the trapezoidal head 1135 fixed to its upper end also falls, thereby unlocking the position of the slider, allowing the slider to squeeze the second spring 1134 inside along the limiting groove 1133 and move the corresponding clamp 114 outward. Since the two clamps 114 are symmetrically arranged, both clamps 114 can be loosened outward for easy turning, and the conversion head located between the two clamps 114 can be pulled out of the clamp 114.

[0070] The operator inserts the conversion head into the spare input interface 21 in the cavity 111 to complete the addition of this type of input interface 21 and ensure the use of the device.

[0071] Finally, the door panel 112 is closed again, and only the adapter 22 is exposed.

[0072] Through the above-mentioned operation process, the corresponding category of input interface 21 can be flexibly added according to needs, which is convenient for the use of the equipment. The logic of each step of the entire operation process is clear, and the coordination of each component and the corresponding working process correspond one-to-one with the final effect of adding the input interface 21, which effectively solves the problem of insufficient input interface 21 and improves the applicability and convenience of the equipment.

[0073] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A multi-channel power measuring instrument with current sensor power supply function, characterized by: It comprises a main body component (1), which comprises a housing (11) and a detection module (12) for performing real-time detection and analysis on an object to be detected; An input component (2) is connected to the detection module (12) and is used to connect the object to be detected and the detection module (12). The input component (2) includes a plurality of fixed input interfaces (21) and a plurality of spare adapters (22). The adapters (22) are used to convert the types of the various input interfaces. The adapters (22) are stored on a door panel (112) of the back cavity (111) of the housing (11). Each of the adapters (22) on the door panel (112) is independently placed and controlled. A first rotating rod (1121) is provided at the lower end of both sides of the door panel (112), and the door panel (112) is turned over with the first rotating rod (1121) as a rotating axis. An arc-shaped guide strip (1122) is provided at the upper end of the door panel (112), and the arc-shaped guide strip (1122) cooperates with a protrusion at the entrance of the cavity (111). A plurality of mounting plates (113) for the adapter (22) are provided at equal intervals on the door panel (112), and the mounting plates (113) correspond to the adapter (22) one by one, and the mounting plates (113) can be turned outward on the door panel (112) to open.

2. The multi-channel power measuring instrument with current sensor power supply function according to claim 1, characterized in that: A cavity (111) for accommodating an input interface (21) is provided on the back of the housing (11), and a door panel (112) that can be rotated outwards and opened is provided at the entrance of the cavity (111). The input interface (21) is divided into a USB interface and a DC interface.

3. The multi-channel power measuring instrument with current sensor power supply function according to claim 1, characterized in that: The door panel (112) is provided with a plurality of notches (1123), each of the mounting plates (113) is mounted in one of the notches (1123), the mounting plates (113) are rotatably connected to the notches (1123) via a second rotating rod (1131) at the lower end, and the mounting plates (113) and the notches (1123) have the same cross-sectional area, and the mounting plates (113) are stuck in the notches (1123).

4. The multi-channel power measuring instrument with current sensor power supply function according to claim 3, characterized in that: Both ends of the first rotating rod (1121) and the second rotating rod (1131) are provided with convex keys. The first rotating rod (1121) cooperates with the groove in the rotating hole at the entrance of the cavity (111), and the second rotating rod (1131) cooperates with the groove in the rotating hole of the slot (1123). The first rotating rod (1121) rotates in the door panel (112), and the second rotating rod (1131) rotates in the mounting plate (113).

5. The multi-channel power measuring instrument with current sensor power supply function according to claim 4, characterized in that: A first cavity (1124) is provided in each of the notches (1123) in the door panel (112), a latch (1125) is slidably provided in the first cavity (1124), a convex ring (1126) is provided in the first cavity (1124), a first spring (1127) for pushing the latch (1125) is provided between the convex ring (1126) and the latch (1125), the upper end of the latch (1125 corresponds to the socket (1132) at the bottom of the mounting plate (113), a first groove (1128) with a gradual depth is provided on the outer wall of the first rotating rod (1121) along the outer circumference, and the lower end of the latch (1125) slides along the first groove (1128).

6. The multi-channel power measuring instrument with current sensor power supply function according to claim 5, characterized in that: Two symmetrical clamps (114) are provided on the mounting plate (113), and the two clamps (114) slide along the limiting groove (1133) provided on the mounting plate (113) through the sliding foot (1141), and a second spring (1134) for pushing the two clamps (114) to close is provided in each of the limiting grooves (1133), and a trapezoidal head (1135) for locking the position of the sliding foot (1141) is provided on the outer side of the sliding foot (1141), and a straight rod (1136) is provided on the lower surface of the trapezoidal head (1135), and the lower end of the straight rod (1136) is located in a second groove (1137) with a gradient depth provided on the outer circumference of the outer wall of the second rotating rod (1131).

7. The multi-channel power measuring instrument with current sensor power supply function according to claim 6, characterized in that: The clamp (114) comprises a main plate (1142) and a sub-plate (1143), wherein the sub-plate (1143) is rotatably mounted on the main plate (1142) via a connecting plate (1144), and the angle between the main plate (1142) and the sub-plate (1143) is adjustable and fixed by bolts.

8. The multi-channel power measuring instrument with current sensor power supply function according to claim 1, characterized in that: The input interface (21) includes a wiring terminal for connecting the current and voltage signals of the circuit under test; the current signal is converted into a voltage signal through the current sensor and then input into the power meter through the wiring terminal; the voltage signal is directly input through the wiring terminal; The adapter (22) includes a power terminal and a DC converter, a USB and a DC converter.

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