Multi-channel power measuring instrument with current sensor power supply function

Abstract

The 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, which comprises a main body component, the main body component comprises a shell and a detection module used for detecting and analyzing an object to be measured in real time, the condition that a certain type of input interfaces are not enough is avoided, a standby adapter is arranged, and the power measuring efficiency is improved. The adapters are installed on the door plate of the standby input interface, so that the door plate has multiple functions, firstly, when the door plate is closed, the standby input interface and the adapters in the cavity can be protected, and dust, sundries and the like are prevented from damaging the door plate; secondly, a notch is formed in the door plate and used for containing a mounting plate of a standby adapter, so that the adapter is stored in order; 3, after the door plate is opened, the door plate is overturned to a horizontal state and can be used as an operation platform, so that an operator can select and operate the adapters conveniently; and fourthly, when the door plate is in an open state, the mounting plate and the adapter can be supported, so that the operation stability is ensured.

Description

Technical Field

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

[0002] A power meter with multi-channel and current sensor power supply function usually has a certain number of input interfaces to meet basic connection requirements. For example, a fixed number of USB interfaces, DC interfaces, etc. are generally provided on the back of the housing for connecting the object to be measured or external devices. The positions and numbers of these interfaces are determined during the device design and manufacturing to adapt to common usage scenarios. However, with the development of technology and the diversification of application scenarios, the device may encounter the situation of insufficient input interfaces during actual use. For example, when performing multi-channel measurements or when it is necessary to connect multiple different types of devices, the original number of input interfaces may not meet the requirements, and a separate adapter expansion device needs to be added.

[0003] Currently, when the input interfaces of the device are insufficient, users often need to carry an additional adapter and manually connect it to the device. This not only increases the complexity of the operation but also may cause the loss or damage of the adapter. This makes it necessary for users to spend extra time and effort to find and connect the spare adapter when needed, reducing the usage efficiency and convenience of the device. Therefore, how to solve the problem of insufficient number of input interfaces in device design and at the same time facilitate users to manage and use spare adapters has become an urgent technical problem to be solved. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that when a spare adapter is needed, users need to spend extra time and effort to find and connect it, reducing the usage efficiency and convenience of the device.

[0005] The above technical problem is solved by the following technical solution: The present invention provides a power meter with multi-channel and current sensor power supply function, including a main body component, which includes a housing and a detection module for performing real-time detection and analysis on the object to be measured; An input component, connected to the detection module, for connecting the object to be measured and the detection module, which includes a plurality of fixed input interfaces and a plurality of spare adapters. The adapter is used for converting the types of each input interface. The adapter is stored on the door panel of the cavity on the back of the housing, and each of the adapters on the door panel is independently placed and controlled.

[0006] In a preferred embodiment of the multi-channel power measuring instrument with a current sensor power supply function according to the present invention: a cavity for accommodating a spare input interface is provided on the back of the housing, and a door panel that can be rotated outward to open is provided at the entrance of the cavity. The spare input interface is divided into a USB interface and a DC interface.

[0007] In a preferred embodiment of the multi-channel power measuring instrument with a current sensor power supply function according to the present invention: at the positions near the lower ends on both sides of the door panel, first rotating rods are provided, and the door panel is flipped with the first rotating rods as the rotation axes. An arc-shaped guiding strip is provided at the upper end of the door panel, and the arc-shaped guiding strip cooperates with the convex block at the entrance of the cavity.

[0008] In a preferred embodiment of the multi-channel power measuring instrument with a current sensor power supply function according to the present invention: mounting plates for the plurality of adapters are equally spaced on the door panel, the mounting plates correspond to the adapters one by one, and the mounting plates can be flipped outward and opened on the door panel.

[0009] In a preferred embodiment of the multi-channel power measuring instrument with a current sensor power supply function according to the present invention: a plurality of notches are formed in the door panel, each mounting plate is installed in one of the notches, the mounting plate is rotatably connected to the notch through a second rotating rod at the lower end, and the cross-sectional areas of the mounting plate and the notch are the same, and the mounting plate is stuck in the notch.

[0010] In a preferred embodiment of the multi-channel power measuring instrument with a current sensor power supply function according to the present invention: convex keys are provided at both ends of the first rotating rod and the second rotating rod. The first rotating rod cooperates with the inner groove of the rotating hole at the entrance of the cavity, and the second rotating rod cooperates with the inner groove of the rotating hole of the notch. The first rotating rod rotates within the door panel, and the second rotating rod rotates within the mounting plate.

[0011] In a preferred embodiment of the multi-channel power measuring instrument with a current sensor power supply function according to the present invention: a first cavity is provided in the door panel at each notch. A plug pin is slidably arranged in the first cavity. A convex ring is provided in the first cavity. A first spring for pushing the plug pin to descend is provided between the convex ring and the plug pin. The upper end of the plug pin corresponds to the jack at the bottom of the mounting plate. A first groove with a gradually changing depth is arranged on the outer circumference of the outer wall of the first rotating rod, and the lower end of the plug pin slides along the first groove.

[0012] In a preferred embodiment of the multi-channel power measuring instrument with a current sensor power supply function according to the present invention: Two symmetrical clamps are provided on the mounting plate, and the two clamps slide along the limiting grooves opened on the mounting plate through sliding feet. A second spring for pushing the two clamps together is provided in each of the limiting grooves. A trapezoidal head for locking the position of the sliding feet is provided on the outer side of the sliding feet. 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 gradually changing depth provided on the outer circumference of the outer wall of the second rotating rod.

[0013] In a preferred embodiment of the multi-channel power measuring instrument with a current sensor power supply function according to 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.

[0014] In a preferred embodiment of the multi-channel power measuring instrument with a current sensor power supply function according to the present invention: The input interface includes a terminal block for connecting the current and voltage signals of the circuit under test. After the current signal is converted into a voltage signal by a current sensor, it is input into the power measuring instrument through the terminal block; the voltage signal is input through the terminal block. The adapter includes a power connection terminal and a DC converter, a USB and a DC converter, etc.

[0015] The beneficial effects of the present invention are as follows: Through a clever design, the present application effectively avoids the situation where a certain type of input interface is insufficient. Specifically, to avoid this problem, spare adapters are provided. These adapters are installed in the entire device on the door panel of the spare input interface. Such a design endows the door panel with multiple functions. First, when the door panel is closed, it can protect the spare input interface and the adapter in the cavity, preventing dust, debris, etc. from damaging them; second, a notch is provided on the door panel for accommodating the mounting plate of the spare adapter, enabling the adapters to be stored in an orderly manner, avoiding loss and keeping the device clean; third, after the door panel is opened, it can be flipped to a horizontal state to serve as an operating platform, facilitating the operator to select and operate the adapters; fourth, when the door panel is in the open state, it can also support the mounting plate and the adapters, ensuring the stability of the operation; fifth, the door panel is connected to the cavity through a first rotating rod and is provided with a structure cooperating with the mounting plate to achieve locking and unlocking of the mounting plate, completing the fixing and release of the adapter. The structure design is ingenious and has multiple functions, effectively improving the practicality and convenience of the device, achieving multiple benefits with one move.

[0016] Furthermore, in order to facilitate the removal of the adapter in the device, the door panel is divided into multiple mounting plates, each mounting plate corresponds to an adapter, and the mounting plate and the fixture can be unlocked by pulling the door panel and the mounting plate, making it very convenient and simple for the operator to use. The entire design embodies the idea of ​​progression, from setting up a spare adapter to reasonably installing it on the door panel, to the structural design that is convenient for removal and use, and finally realizing the ability to quickly and conveniently add input interfaces of the corresponding category when needed, greatly improving the applicability and convenience of the equipment, and effectively solving the problem of insufficient input interfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention are briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention. Among them: Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the cavity on the back side of the housing of the present invention; Figure 4 It is a schematic diagram of clamping the adapter on the door panel of the present invention; Figure 5 It is a schematic diagram of the clamp of the present invention.

[0018] Figure 6 for Figure 4 The cross-sectional structure diagram of the middle part; Figure 7 It is a schematic diagram of the structure of the second groove on the second rotating rod of the present invention; Figure 8 for Figure 6 A schematic diagram of the structure enlargement in the middle; Figure 9 for Figure 6 Enlarged schematic diagram of the structure at point B in the middle.

[0019] In the figure: 1. Main body component; 11. Housing; 111. Cavity; 112. Door panel; 1121. First rotating rod; 1122. Arc-shaped guiding strip; 1123. Notch; 1124. First cavity; 1125. Bolt; 1126. Convex ring; 1127. First spring; 1128. First groove; 113. Mounting plate; 1131. Second rotating rod; 1132. Jack; 1133. Limiting groove; 1134. Second spring; 1135. Trapezoidal head; 1136. Straight rod; 1137. Second groove; 114. Fixture; 1141. Sliding foot; 1142. Main board; 1143. Sub-board; 1144. Connecting plate; 2. Input component; 21. Input interface; 22. Adapter. Detailed implementation mode

[0020] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the specific implementation mode and the accompanying drawings.

[0021] The terms used in the present invention are those general terms currently widely used in the art in consideration of the functions of the present invention. However, these terms may change according to the intentions of those of ordinary skill in the art, precedents or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, 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 based on the meanings of the terms and the overall description of the present invention.

[0022] Refer to Figures 1 - 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 housing 11 and a detection module 12 for performing real-time detection and analysis on the 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 are used for converting the types of each input interface 21. The spare adapters 22 are stored on the door panel 112 of the cavity 111 on the back of the housing 11, and each spare adapter 22 on the door panel 112 is independently placed and controlled.

[0023] In this embodiment, the housing 11 of the main body component 1: As the external structure of the entire device, it plays the roles of protecting internal components, providing physical support, and facilitating the operator to hold or place. Its design usually considers factors such as heat dissipation, dust prevention, and waterproofing to ensure the stable operation of the device in various environments.

[0024] The detection module 12 of the main body component 1 is responsible for real-time detection and analysis of the object to be measured. It contains various precision electronic components and circuits, which can collect, process, and analyze signals such as input current and voltage, so as to obtain relevant measurement data such as power and phase. For example, the analog signal is converted into a digital signal through a high-speed analog-to-digital converter, and then complex calculations and analyses are carried out using a microprocessor or a dedicated measurement chip to achieve high-precision power measurement.

[0025] The fixed input interfaces 21 of the input component 2 include the following: terminal blocks, DC interfaces, USB interfaces, RS-232 interfaces, Ethernet interfaces, BNC signal output interfaces, trigger signal input interfaces 21, etc., and are all set on the back of the housing 11.

[0026] Terminal blocks: Used to connect the current and voltage signals of the circuit under test. In actual measurement, the current signal usually needs to be converted through a current sensor (such as a current clamp or a shunt), converting the current signal into a proportional voltage signal, and then inputting it into the power meter through the terminal block. The voltage signal can be directly input through the terminal block, conveniently connecting the circuit under test to the power meter to achieve the measurement of circuit parameters.

[0027] DC interface: Mainly used to provide DC power for the power meter. It can convert the AC power grid into stable DC power to supply power to the internal circuits and components of the device, ensuring the normal operation of the device. In addition, the DC interface can also be used to supply power to external current sensors, ensuring the stable operation of the current sensors, thereby improving the accuracy and reliability of the measurement.

[0028] USB interface: Used for data transmission and communication with a computer or other devices. Through the USB interface, the data measured by the power meter can be transmitted to the computer for further analysis, storage, and processing, facilitating the user to manage and utilize the measurement data. At the same time, the USB interface can also provide power for external devices. For example, it can charge some small measurement accessories or mobile devices, increasing the convenience and practicality of the device.

[0029] RS-232 interface: Mainly used for serial communication, capable of connecting the power meter to a computer or other devices for data transmission and control. It supports multiple communication protocols such as Modbus RTU, etc., enabling devices to communicate according to standardized protocols, achieving reliable data transmission and remote control of the device.

[0030] Ethernet Interface: For network communication, it can connect the power meter to a local area network or the Internet to achieve remote monitoring and data transmission. Through the Ethernet interface, users can access the power meter remotely via the network, obtain measurement data in real time, and perform remote settings and controls, greatly improving the usage range and flexibility of the device. It supports multiple communication protocols such as Modbus TCP, EIP, etc., and can be compatible and interoperable with various network devices and systems.

[0031] BNC Signal Output Interface: Used to output measurement signals such as voltage, current, etc. These output measurement signals can be connected to other devices such as oscilloscopes and power analyzers for further analysis and processing. For example, by connecting to an oscilloscope, the waveform of the signal can be observed, and characteristics such as the frequency and amplitude of the signal can be understood, providing support for more in-depth measurement and analysis.

[0032] Trigger Signal Input Interface 21: Used to input external trigger signals for synchronous measurement. In some complex measurement scenarios, synchronous measurement with other devices or systems is required. Through the trigger signal input interface 21, external trigger signals can be received, enabling the power meter to start measuring at a specific moment, ensuring the accuracy and reliability of the measurement, and improving the repeatability and comparability of the measurement results.

[0033] The spare adapter 22 includes a power connection terminal and a DC converter, a USB and a DC converter, etc.

[0034] Power Connection Terminal and DC Converter: This adapter 22 can convert the input power of the power connection terminal into DC power to supply power to the power meter or other devices. For example, in some occasions where DC power is not directly provided, AC power can be connected through the power connection terminal, and then the AC power can be converted into DC power through the power connection terminal and DC converter to meet the power supply requirements of the device.

[0035] USB and DC Converter: This adapter 22 can convert the power provided by the USB interface into DC power for supplying power to an external current sensor or other devices. Since the voltage and current provided by the USB interface are usually limited, the USB power can be appropriately converted and regulated through the USB and DC converter to meet the power supply requirements of external devices, increasing the power supply flexibility and compatibility of the device.

[0036] Refer to Figures 3 - 9 , in some embodiments, a cavity 111 for accommodating the spare input interface 21 is provided on the back of the housing 11. A door panel 112 that can be rotated outward to open is provided at the entrance of the cavity 111. Its spare input interface 21 is divided into a USB interface and a DC interface. The spare adapter 22 is stored on the door panel 112 of the cavity 111 on the back of the housing 11, and each spare adapter 22 on the door panel 112 is independently placed and controlled.

[0037] It should be noted that a cavity 111 for accommodating a spare input interface 21 is specifically provided on the back of the housing 11 of the power meter. This design enables 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 requirements.

[0038] To protect the spare input interface 21 and the spare adapter 22 in the cavity 111 and enable convenient operation when needed, a door panel 112 that can be rotated outward to open is provided at the entrance of the cavity 111. The presence of the door panel 112 not only serves a protective function, preventing dust, debris, etc. from entering the cavity 111 and damaging or interfering with the spare input interface 21 and the adapter 22, but also ensures the cleanliness and integrity of the device's appearance to a certain extent.

[0039] The spare adapter 22 is stored on the door panel 112 of the cavity 111 on the back of the housing 11. This design makes the spare adapter 22 closely associated with the spare input interface 21, facilitating the operator to quickly find and access the adapter 22 when needed. Moreover, each spare adapter 22 on the door panel 112 is independently placed and controlled, that is, each spare adapter 22 has its own independent fixing and releasing mechanism. The operator can select and use a certain spare adapter 22 according to actual needs without affecting the storage status of other adapters 22, improving the convenience and flexibility of operation, and also avoiding the situation where other adapters 22 fall or are damaged due to accidental touch during operation.

[0040] The spare input interfaces 21 in the cavity 111 are divided into two types: USB interfaces and DC interfaces. The USB interfaces are mainly used for data transmission and communication, such as transmitting measurement data to a computer for further analysis and processing, and can also provide power for external devices; the DC interfaces are mainly used to provide DC power for the device, converting the AC power grid into DC power to supply power to the internal circuits and components of the device, and can also supply power to external current sensors to ensure their normal operation. The setting of these two types of spare input interfaces 21 enables the device to meet different requirements when expanding input functions, enhancing the applicability and versatility of the device.

[0041] At the lower positions near both sides of the door panel 112, first rotating rods 1121 are provided, and the door panel 112 is flipped with the first rotating rods 1121 as the rotation axes. An arc-shaped guiding strip 1122 is provided at the upper end of the door panel 112, and the arc-shaped guiding strip 1122 cooperates with the convex block at the entrance of the cavity 111.

[0042] It should be noted that the first rotating rods 1121 provided at the lower ends on both sides of the door panel 112 serve as the rotating shafts for the flipping of the door panel 112, enabling the door panel 112 to flip outward with this rotating rod as the axis, facilitating the operator to operate the spare input interface 21 and the adapter 22 inside the cavity 111. The arc-shaped guiding strip 1122 provided at the upper end of the door panel 112 cooperates with the bump at the entrance of the cavity 111. When the door panel 112 is closed, the arc-shaped guiding strip 1122 will closely fit along the shape of the bump, which not only plays a role in guiding the door panel 112 to close accurately in place, but also enhances the sealing performance between the door panel 112 and the cavity 111, effectively preventing dust, sundries, etc. from entering the cavity 111 and damaging the spare interface and the adapter 22. At the same time, when opening the door panel 112, it can also make the door panel 112 flip smoothly along the predetermined trajectory, avoiding jamming or deviation, ensuring the convenience of operation and the reliability of the equipment.

[0043] On the door panel 112, a plurality of mounting plates 113 for mounting the spare adapters 22 are equidistantly arranged. The mounting plates 113 correspond to the spare adapters 22 one by one, and the mounting plates 113 can be flipped outward and opened on the door panel 112. A plurality of notches 1123 are formed on the door panel 112. Each mounting plate 113 is installed in one of the notches 1123. The mounting plate 113 is rotatably connected to the notch 1123 through the second rotating rod 1131 at the lower end, and the cross-sectional areas of the mounting plate 113 and the notch 1123 are the same, and the mounting plate 113 is stuck in the notch 1123.

[0044] It should be noted that on the door panel 112, a plurality of mounting plates 113 for mounting the spare adapters 22 are arranged at equal intervals. Each mounting plate 113 corresponds to a spare adapter 22, and these mounting plates 113 can be flipped outward and opened, facilitating the operator to access the spare adapters 22. A plurality of notches 1123 matching the number of the mounting plates 113 are also formed on the door panel 112. Each mounting plate 113 is installed in a corresponding notch 1123 and is rotatably connected to the notch 1123 through the 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, enabling the mounting plate 113 to be tightly stuck in the notch 1123. When the spare adapter 22 is not needed, the mounting plate 113 remains closed, protecting the spare adapter 22, and at the same time making the overall appearance of the door panel 112 neater and more orderly. When the spare adapter 22 is needed, the corresponding mounting plate 113 can be flipped outward and opened, so as to conveniently take out the spare adapter 22 for use.

[0045] Both ends of the first rotating rod 1121 and the second rotating rod 1131 are provided with convex keys. The first rotating rod 1121 is matched with the inner groove of the rotating hole at the entrance of the cavity 111, and the second rotating rod 1131 is matched with the inner groove of the rotating hole of the notch 1123. The first rotating rod 1121 rotates within the door panel 112, and the second rotating rod 1131 rotates within the mounting plate 113.

[0046] A first cavity 1124 is provided at each notch 1123 within the door panel 112. A latch 1125 is slidably arranged within the first cavity 1124. A convex ring 1126 is arranged within the first cavity 1124. A first spring 1127 for pushing downwards is arranged between the convex ring 1126 and the latch 1125. The upper end of the latch 1125 corresponds to the jack 1132 at the bottom of the mounting plate 113. A first groove 1128 with gradually changing depth is arranged 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.

[0047] Two symmetric 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 feet 1141. A second spring 1134 for pushing the two clamps 114 to close is arranged within each limiting groove 1133. A trapezoidal head 1135 for locking the position of the sliding foot 1141 is arranged on the outer side of the sliding foot 1141. A straight rod 1136 is arranged on the lower surface of the trapezoidal head 1135, and the lower end of the straight rod 1136 is located within a second groove 1137 with gradually changing depth arranged on the outer wall of the second rotating rod 1131 along the outer circumference.

[0048] It should be noted that the setting and cooperation of the rotating rods: Both ends of the first rotating rod 1121 and the second rotating rod 1131 are provided with convex keys. The first rotating rod 1121 is mutually matched with the inner groove of the rotating hole at the entrance of the cavity 111, so that the first rotating rod 1121 can rotate within the door panel 112, thereby realizing the flipping opening and closing of the door panel 112. Similarly, the second rotating rod 1131 is mutually matched with the inner groove of the rotating hole of the notch 1123, so that the second rotating rod 1131 can rotate within the mounting plate 113, and further control the flipping action of the mounting plate 113. Such a design ensures the stability and accuracy of the door panel 112 and the mounting plate 113 during the rotation process.

[0049] The cooperation between the bolt 1125 and the spring: At each notch 1123 in the door panel 112, a first cavity 1124 is provided. A bolt 1125 is slidably arranged in the first cavity 1124. At the same time, a convex ring 1126 is provided in the cavity. A first spring 1127 is installed between the convex ring 1126 and the bolt 1125 for pushing the bolt 1125 to descend. The upper end of the bolt 1125 corresponds to the jack 1132 at the bottom of the mounting plate 113. When the mounting plate 113 is in a flush state, the bolt 1125 is inserted into the jack 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 gradually changing depth along the outer circumference. The lower end of the bolt 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 bolt 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 toggled.

[0050] The setting of the fixture 114 and the slider: Two symmetric fixtures 114 are provided on the mounting plate 113 for fixing the spare adapter 22. These two fixtures 114 slide along the limit grooves 1133 opened on the mounting plate 113 through the sliding feet 1141. A second spring 1134 is provided in each limit groove 1133 for pushing the two fixtures 114 to close together to clamp the spare adapter 22. A trapezoidal head 1135 for locking the position of the sliding foot 1141 is provided on the outside of the sliding foot 1141. A straight rod 1136 is provided 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 gradually changing depth along the outer circumference of the outer wall of the second rotating rod 1131. 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 so that the slider can move along the limit groove 1133, and then driving the fixture 114 to move outwards, facilitating the removal of the spare adapter 22 from the fixture 114.

[0051] The fixture 114 includes a main board 1142 and a sub-board 1143. The sub-board 1143 is rotatably installed on the main board 1142 through a connecting plate 1144, and the angle between the main board 1142 and the sub-board 1143 is adjustable and fixed by bolts.

[0052] It should be noted that the fixture 114 is composed of a main board 1142 and a sub-board 1143. The sub-board 1143 is rotatably mounted on the main board 1142 through a connecting plate 1144, so that the angle between the sub-board 1143 and the main board 1142 can be adjusted. The realization of this angle adjustment is controlled by bolts. When the angle needs to be adjusted, the bolts are loosened, and the sub-board 1143 can rotate around the main board 1142 through the connecting plate 1144, thereby changing the included angle with the main board 1142. After adjusting to the appropriate angle, the bolts are tightened again to fix the angle between the main board 1142 and the sub-board 1143. Such a design makes the fixture 114 more flexible during use. It can not only squeeze and clamp the adapter 22 from both sides, but also support the contracted part at the bottom of the adapter 22 through the inclined sub-board 1143, so as to ensure the firm clamping of the adapter 22 and effectively prevent the adapter 22 from loosening or falling off during use.

[0053] Refer to Figures 1 - 9 , the working process: 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 this type of input interface 21: Open the door panel 112. At this time, the door panel 112 rotates 90 degrees with the first rotating rod 1121 on the lower side as the axis, changing from the vertical state to the horizontal state, which is convenient for the operator to select various types of adapters installed inside the door panel 112.

[0054] After selecting the corresponding adapter 22, pull the mounting plate 113 corresponding to this adapter on the door panel 112. The mounting plate 113 rotates with the second rotating rod 1131 at the lower end as the axis, changing from the state flush with the door panel 112 to the state perpendicular to the door panel 112. The reason for being able to pull is that the two ends of the first rotating rod 1121 are keyed with the key slots of the rotating holes in the cavity 111. When the door panel 112 rotates, the first rotating rod 1121 does not rotate. Then, the plug pin 1125 used to lock the state of the mounting plate 113 inside the door panel 112 descends under the action of its own first spring 1127. The lower end extends into the first groove 1128 with a gradually changing depth along the outer circumference on the outer wall of the first rotating rod 1121, and the upper end disengages from the jack 1132 at the bottom of the mounting plate 113, unlocking the mounting plate 113. Also, since the cross-sectional areas between the mounting plate 113 and the notch 1123 are the same, and the mounting plate 113 is stuck in the notch 1123, the mounting plate 113 will not turn out of the notch 1123 without external force. Therefore, except for the pulled mounting plate 113, the mounting plates 113 corresponding to other adapters remain in place.

[0055] When the mounting plate 113 is toggled to rotate by 90 degrees, since the two ends of the second rotating rod 1131 are in keyway fit with the rotating holes of the notch 1123, the second rotating rod 1131 does not rotate when the mounting plate 113 rotates. Also, because 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 rotating, 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 at its upper end also drops accordingly, unlocking the position of the slider, allowing the slider to squeeze the internal second spring 1134 along the limiting groove 1133 and then move the corresponding fixture 114 outwards. Also, since the two fixtures 114 are symmetrically arranged, both of the two fixtures 114 can be loosened outwards for easy toggling, and then the adapter located between the two fixtures 114 can be pulled out from the fixtures 114.

[0056] The operator inserts the adapter into the spare input interface 21 in the cavity 111, completing the addition of this type of input interface 21 and ensuring the use of the device.

[0057] Finally, close the door panel 112 again, and at this time only the position of the adapter 22 is exposed.

[0058] Through the above operation process, the corresponding types of input interfaces 21 can be added flexibly according to requirements, facilitating the use of the device. Moreover, the logic of each step in the entire operation process is clear, the cooperation of each component and the corresponding working process correspond one by one to the final effect of adding the input interface 21, effectively solving the problem of insufficient input interfaces 21 and improving the applicability and convenience of the device.

[0059] Finally, it should be pointed out that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A multi-channel power measuring instrument with current sensor power supply function, characterized in that: 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) comprises a plurality of fixed input interfaces (21) and a plurality of spare adapters (22). The adapters (22) are used to convert the types of various input interfaces. The adapters (22) are stored on a door panel (112) of a cavity (111) at the back of the housing (11). Each of the adapters (22) on the door panel (112) is independently placed and controlled.

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 a spare input interface (21) is provided on the back of the housing (11), and a door panel (112) that can be rotated outwards to open is provided at the entrance of the cavity (111), wherein the spare 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 or 2, characterized in that: First rotating rods (1121) are provided at the lower ends of both sides of the door panel (112), and the door panel (112) is turned over using the first rotating rods (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).

4. The multi-channel power measuring instrument with current sensor power supply function according to claim 3, characterized in that: A plurality of mounting plates (113) for the adapters (22) are arranged at equal intervals on the door panel (112); the mounting plates (113) correspond to the adapters (22) one by one, and the mounting plates (113) can be flipped outwards on the door panel (112) to open.

5. The multi-channel power measuring instrument with current sensor power supply function according to claim 4, characterized in that: The door panel (112) is provided with a plurality of notches (1123), each of the mounting plates (113) being mounted in one of the notches (1123), the mounting plate (113) being rotatably connected to the notch (1123) via a second rotating rod (1131) at a lower end, the mounting plate (113) having the same cross-sectional area as the notch (1123), and the mounting plate (113) being clamped in the notch (1123).

6. The multi-channel power measuring instrument with current sensor power supply function according to claim 5, 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 a groove in a rotating hole at the entrance of the cavity (111); the second rotating rod (1131) cooperates with a groove in a 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).

7. The multi-channel power measuring instrument with current sensor power supply function according to claim 6, characterized in that: A first cavity (1124) is provided in the door panel (112) at each of the notches (1123), 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) to descend is provided between the convex ring (1126) and the latch (1125), the upper end of the latch (1125 corresponds to the insertion hole (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).

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

9. The multi-channel power measuring instrument with current sensor power supply function according to claim 8, characterized in that: The clamp (114) comprises 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); and the angle between the main plate (1142) and the sub-plate (1143) is adjustable and fixed by bolts.

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

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