A universal flexible automated power connection device

Abstract

This utility model discloses a universal flexible automated power connection device, comprising: a mounting base and a single / three-phase power connection device, a terminal power connection device, a power source for the power connection device, and a housing, all placed on the mounting base. The mounting base has single / three-phase test positions and a terminal test position. The device under test is placed in the single / three-phase test position and / or the terminal test position and is detachably connected to the mounting base. The single / three-phase power connection device and the terminal power connection device are powered by the power source and slidably connected to the mounting base, enabling power connection testing of the device under test placed in the single / three-phase test position and / or the terminal test position. The housing is placed on the mounting base and forms an open cavity with the mounting base. The single / three-phase power connection device and the terminal power connection device are placed inside the cavity. This utility model solves the technical problems of existing power connection devices being unable to accommodate the access and synchronous measurement of multiple types of electricity metering products and having low automation capabilities.

Description

Technical Field

[0001] This utility model relates to the field of power metering technology, and in particular to a general-purpose flexible automated power connection device. Background Technology

[0002] Currently, all automated connection devices for domestic electricity metering products are dedicated types, meaning that each model of electricity metering product requires a dedicated connection device. However, there are numerous existing electricity metering products, such as single-phase electricity meters, three-phase direct-connect electricity meters, three-phase transformer electricity meters, and terminals. Therefore, metrology and testing institutions need to purchase multiple testing lines for automated testing when performing accuracy tests. Furthermore, these production lines are often dedicated to specific functions, making compatible testing impossible. Some verification institutions have attempted compatible testing, primarily by setting up connection devices on both sides of the production line. Multi-layer energy meter bases are used for single-layer double-sided and double-layer double-sided testing. The single-layer double-sided layout requires rotating the tooling plate to select the meter holder wiring, which is only compatible with two types of equipment and cannot achieve simultaneous double-sided measurement. A rotating and lifting tooling plate allows selection of meter holder wiring, compatible with four types of products. However, this type of production line suffers from reduced upper-layer crimping reliability, cannot achieve simultaneous double-sided measurement, and requires manual connection for electromagnetic compatibility testing. This results in a large footprint for accuracy testing lines, and the manual labor involved in electromagnetic compatibility and other tests is labor-intensive and inefficient. Therefore, there is an urgent need to propose a universal flexible automated connection device to solve the technical problems of existing connection devices' inability to accommodate multiple types of energy metering products for simultaneous measurement and their low automation capabilities. Utility Model Content

[0003] The main purpose of this invention is to propose a universal flexible automated power connection device, which aims to solve the technical problems of existing power connection devices being unable to be compatible with the access and synchronous measurement of multiple types of power metering products and having low automation capabilities.

[0004] To achieve the above objectives, this utility model provides a universal flexible automated power connection device, wherein the universal flexible automated power connection device includes: a mounting base and a single / three-phase power connection device, a terminal power connection device, a power source for the power connection device, and a housing placed on the mounting base; the mounting base is provided with a single / three-phase test position and a terminal test position, the device under test is placed at the single / three-phase test position and / or the terminal test position and is detachably connected to the mounting base, the single / three-phase power connection device and the terminal power connection device are powered by the power source for sliding connection with the mounting base, thereby realizing the power connection test of the device under test placed at the single / three-phase test position and / or the terminal test position; the housing is placed on the mounting base and forms an open cavity with the mounting base, the single / three-phase power connection device and the terminal power connection device are placed in the cavity.

[0005] In one preferred embodiment, the single / three-phase power connection device is provided with variable-pitch power supply pins, a first single-phase energy meter auxiliary terminal pin, and a three-phase energy meter auxiliary terminal pin, each driven independently by a power source of the power connection device; the variable-pitch power supply pins achieve lateral and longitudinal movement between different pins by driving a variable-pitch plate through the power source of the power connection device; the first single-phase energy meter auxiliary terminal pin and the three-phase energy meter auxiliary terminal pin achieve overall longitudinal movement through a first guide mechanism.

[0006] In one preferred embodiment, the pitch plate is provided with a camshaft, a camshaft gear, and a pitch plate rack on the side near the pitch power supply pin; the pitch plate rack is connected to the camshaft gear, and the camshaft gear is connected to the camshaft.

[0007] In one preferred embodiment, the pitch plate is provided with the same number of curved guide holes as the pitch power supply pins.

[0008] In one preferred embodiment, the variable pitch power supply pin includes a pin body, one end of which is tightly fitted to the camshaft. The pin body is provided with a guide post, which slides along a curved guide hole on the variable pitch plate. A compressed return spring is provided between the guide post and the end of the pin body near the camshaft.

[0009] In one preferred embodiment, the needle body includes a tube segment, a needle holder, and an electrical receiving needle; one end of the electrical receiving needle is placed inside the tube segment, and the electrical receiving needle is connected to the needle holder via the buffer spring.

[0010] In one preferred embodiment, the electrode receiving needle is provided with a limiting ball, which is positioned between the electrode receiving needle and the inner wall of the pipe section.

[0011] In one preferred embodiment, the power source of the power connection device includes a single / three-phase power connection device power source, a variable pitch power source, a single-phase auxiliary terminal pin power source, and a three-phase auxiliary terminal pin power source; the single / three-phase power connection device power source is used to drive the longitudinal movement of the single / three-phase power connection device, the variable pitch power source is used to drive the variable pitch plate to realize the lateral and longitudinal movement of the variable pitch power supply pin, the single-phase auxiliary terminal pin power source is used to drive the longitudinal movement of the auxiliary terminal pin of the first single-phase energy meter, and the three-phase auxiliary terminal pin power source is used to drive the longitudinal movement of the auxiliary terminal pin of the three-phase energy meter.

[0012] In one preferred embodiment, the terminal power connection device includes a terminal variable pitch power-on voltage pin, a second single-phase energy meter auxiliary terminal pin, a type I concentrator auxiliary terminal pin, a type III special transformer terminal auxiliary terminal pin A, a type III special transformer terminal auxiliary terminal pin B, and an energy controller auxiliary terminal pin, each independently driven by a power source for the power connection device. The terminal variable pitch power-on voltage pin achieves lateral and longitudinal movement between different pins by driving a variable pitch plate through the power source for the power connection device. The second single-phase energy meter auxiliary terminal pin, the type I concentrator auxiliary terminal pin, the type III special transformer terminal auxiliary terminal pin A, the type III special transformer terminal auxiliary terminal pin B, and the energy controller auxiliary terminal pin achieve overall longitudinal movement through a second guide mechanism.

[0013] In one preferred embodiment, the power source of the power connection device includes a terminal power connection device power source, a variable pitch plate power source, a single-phase auxiliary pin power source, a type I concentrator auxiliary pin power source, a type III special transformer terminal auxiliary pin power source A, a type III special transformer terminal auxiliary pin power source B, an energy controller auxiliary pin power source, and an auxiliary pin switching power source.

[0014] In the above technical solution of this utility model, the universal flexible automated power connection device includes: a mounting base and a single / three-phase power connection device, a terminal power connection device, a power source for the power connection device, and a housing placed on the mounting base; the mounting base is provided with a single / three-phase test position and a terminal test position, and the device under test is placed at the single / three-phase test position and / or the terminal test position and detachably connected to the mounting base; the single / three-phase power connection device and the terminal power connection device are slidably connected to the mounting base through the power source for power supply, thereby realizing the power connection test of the device under test placed at the single / three-phase test position and / or the terminal test position; the housing is placed on the mounting base and forms an open cavity with the mounting base, and the single / three-phase power connection device and the terminal power connection device are placed in the cavity. This utility model solves the technical problems of existing power connection devices being unable to be compatible with the access and synchronous measurement of multiple types of power metering products and having low automation capabilities.

[0015] In this invention, the variable pitch power supply pin of the single / three-phase power connection device can achieve lateral variable pitch movement and simultaneously achieve forward and backward movement by driving the variable pitch plate through a single variable pitch power source. The terminal variable pitch power supply voltage pin of the terminal power connection device can achieve lateral variable pitch movement and simultaneously achieve forward and backward movement by driving the variable pitch plate power source through a single variable pitch plate power source.

[0016] In this utility model, a number of curved guide holes are provided on the pitch plate, and the power supply pins of the pitch plate slide in each curved guide hole. Different pitches can be achieved by sliding to different positions. At the same time, the rack on the pitch plate is driven to move back and forth, i.e., longitudinally, through the gear shaft, thereby realizing compatible power connection for single-phase energy meters, three-phase direct energy meters, three-phase inductive energy meters, type I concentrators, type II concentrators, type III special transformer terminals, and energy controllers (special transformers). Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a first schematic diagram of a general-purpose flexible automated power connection device according to an embodiment of the present invention;

[0019] Figure 2 This is a second schematic diagram of a general-purpose flexible automated power connection device according to an embodiment of the present invention;

[0020] Figure 3 This is a first schematic diagram of a single / three-phase power connection device according to an embodiment of the present invention;

[0021] Figure 4 This is a second schematic diagram of a single / three-phase power connection device according to an embodiment of the present invention;

[0022] Figure 5 This is a third schematic diagram of a single / three-phase power connection device according to an embodiment of the present invention;

[0023] Figure 6 This is a fourth schematic diagram of the single / three-phase power connection device according to an embodiment of the present invention;

[0024] Figure 7 This is a first schematic diagram of the camshaft according to an embodiment of the present invention;

[0025] Figure 8 This is a second schematic diagram of the camshaft according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the connection of the variable pitch power supply pins in an embodiment of this utility model;

[0027] Figure 10 This is a schematic diagram of the variable-pitch power supply pins according to an embodiment of the present invention;

[0028] Figure 11 This is a first schematic diagram of the terminal power connection device according to an embodiment of the present utility model;

[0029] Figure 12 This is a second schematic diagram of the terminal power connection device according to an embodiment of the present utility model;

[0030] Figure 13 This is a schematic diagram of the connection of the terminal variable pitch power-on voltage plug in an embodiment of this utility model;

[0031] Figure 14 This is a schematic diagram of a general-purpose flexible automated power connection device for assembly lines, as described in an embodiment of this utility model.

[0032] Figure 15 This is a schematic diagram of the limiting mechanism according to an embodiment of the present invention.

[0033] Explanation of icon numbers:

[0034] 1. Single / three-phase power connection device; 2. Terminal power connection device; 3. Single / three-phase test position; 4. Terminal test position; 5. Power source for power connection device; 6. Limiting mechanism; 7. Mounting base; 8. Housing; 1.1. Pitch-changing power supply pin; 1.2. First single-phase energy meter auxiliary terminal pin; 1.3. Three-phase energy meter auxiliary terminal pin; 1.4. Pitch-changing power source; 1.5. Single-phase auxiliary terminal pin power source; 1.6. Three-phase auxiliary terminal pin power source; 1.7. First power mounting base; 1.8. Pitch plate; 1.9. Camshaft; 1.10. Camshaft gear; 1.11. Pitch plate rack; 1.12. Power connection pin; 1.13. Limiting ball; 1.14. Buffer spring; 1.15. Guide post; 1.16. Return spring; 1.17. First guide groove; 1.18. Pin holder; 1.1 9. Curved guide hole; 2.1 Power source for auxiliary pin of energy controller; 2.2 Power source A for auxiliary pin of type III special transformer terminal; 2.3 Power source for single-phase auxiliary pin; 2.4 Power source for auxiliary pin of type I concentrator; 2.5 Power source B for auxiliary pin of type III special transformer terminal; 2.6 Power source for pitch plate; 2.7 Power source for auxiliary pin switching; 2.8 Second guide groove; 2.9 Third guide groove; 2.10 Terminal pitch plate voltage pin; 2.11 Second single-phase energy meter auxiliary terminal pin; 2.12 Type I concentrator auxiliary terminal pin; 2.13 Type III special transformer terminal auxiliary terminal pin A; 2.14 Type III special transformer terminal auxiliary terminal pin B; 2.15 Energy controller auxiliary terminal pin; 2.16 Second power mounting base; 6.1 Limit spring.

[0035] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] It should be noted that all directional indicators (such as up, down, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0038] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0039] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] See Figures 1-15 According to one aspect of this utility model, a universal flexible automated power connection device is provided, wherein the universal flexible automated power connection device includes: a mounting base 7 and a single / three-phase power connection device 1, a terminal power connection device 2, a power connection device power source 5, and a housing 8 placed on the mounting base 7; the mounting base 7 is provided with a single / three-phase test position 3 and a terminal test position 4, the tested mechanism is placed at the single / three-phase test position 3 and / or the terminal test position 4 and is detachably connected to the mounting base, the single / three-phase power connection device 1 and the terminal power connection device 2 are slidably connected to the mounting base through the power connection device power source 5, thereby realizing the power connection test of the tested mechanism placed at the single / three-phase test position 3 and / or the terminal test position 4; the housing 8 is placed on the mounting base 7 and forms an open cavity with the mounting base 7, the single / three-phase power connection device 1 and the terminal power connection device 2 are placed in the cavity.

[0041] Specifically, in this embodiment, the tested mechanism includes a single-phase energy meter, a three-phase direct-type energy meter, a three-phase inductive energy meter, a Type I concentrator, a Type II concentrator, a Type III dedicated transformer terminal, and an energy controller; the universal flexible automatic power connection device of this utility model can realize compatible power connection for single-phase energy meters, three-phase direct-type energy meters, three-phase inductive energy meters, Type I concentrators, Type II concentrators, Type III dedicated transformer terminals, and energy controllers (dedicated transformers); the universal flexible automatic power connection device can be configured as a platform. The modular and assembly-line layouts, as well as the platform-type layout, are mainly used for electromagnetic compatibility testing. The mounting base 7 of the general-purpose flexible automated power connection device is equipped with two test positions, namely single / three-phase test position 3 and terminal test position 4. The single / three-phase test position 3 can realize the power connection test of single-phase smart energy meters, type II concentrators, three-phase direct energy meters, and three-phase inductive energy meters. The terminal test position 4 supports the power connection test of single-phase smart energy meters, type I concentrators, type II concentrators, type III special transformer terminals, and energy controllers (special transformers).

[0042] Specifically, in this embodiment, the single / three-phase power connection device 1 and the terminal power connection device 2 can move as a whole relative to the mounting base 7, powered by the power connection device power source 5, thereby realizing the power connection of the corresponding meter; the bottom of the single / three-phase power connection device 1 and the terminal power connection device 2 is provided with a sliding structure, the mounting base 7 is provided with a sliding groove, the sliding structure of the single / three-phase power connection device 1 and the terminal power connection device 2 is placed in the sliding groove, driven by the power connection device power source 5, realizing the movement of the single / three-phase power connection device 1 and the terminal power connection device 2 in the sliding groove, that is, realizing the longitudinal movement of the single / three-phase power connection device 1 and the terminal power connection device 2.

[0043] Specifically, in this embodiment, the mounting base 7 is provided with a plurality of limiting mechanisms 6. The limiting mechanisms 6 are used to enable the tested mechanism to be detachably connected to the single / three-phase test position 3 and / or terminal test position 4 and the mounting base. The limiting mechanisms 6 can restrict the movement of the tested mechanism and can be freely pressed down under the gravity of the tested mechanism.

[0044] Specifically, in this embodiment, the universal flexible automated power connection device further includes a housing 8, which is placed on the mounting base 7. After the housing 8 is connected to the mounting base 7, it forms an accommodating cavity with one side open. The single / three-phase power connection device 1 and the terminal power connection device 2 are placed in the accommodating cavity.

[0045] Specifically, in this embodiment, the single / three-phase power connection device 1 is provided with a first power mounting base 1.7 and variable-pitch power supply pins 1.1, a first single-phase energy meter auxiliary terminal pin 1.2, and a three-phase energy meter auxiliary terminal pin 1.3, which are independently driven by the power source 5 of the power connection device and placed within the first power mounting base 1.7. The variable-pitch power supply pin 1.1 achieves lateral and longitudinal movement between different pins by driving the variable-pitch plate 1.8 through the power source 5 of the power connection device. The first single-phase energy meter auxiliary terminal pin 1.2 and the three-phase energy meter auxiliary terminal pin 1.3 achieve overall longitudinal movement through a first guide mechanism, which includes a first guide member and a first guide groove 1.17. The first guide members are respectively disposed on both sides of the auxiliary terminal pin 1.2 of the first single-phase energy meter and the auxiliary terminal pin 1.3 of the three-phase energy meter. The first guide grooves 1.17 are respectively disposed on the inner walls of the first power mounting base 1.7 and the first guide members of the first single-phase energy meter auxiliary terminal pin 1.2 and the three-phase energy meter auxiliary terminal pin 1.3. The first guide members slide in the first guide grooves 1.17. The single-phase auxiliary terminal pin power source 1.5 and the three-phase auxiliary terminal pin power source 1.6 independently drive the single-phase energy meter auxiliary terminal pin 1.2 and the three-phase energy meter auxiliary terminal pin 1.3 to achieve longitudinal movement relative to the first power mounting base 1.7.

[0046] Specifically, in this embodiment, the pitch plate 1.8 has a camshaft 1.9, a camshaft gear 1.10, and a pitch plate rack 1.11 on the side near the pitch-up power supply pin 1.1. The pitch plate rack 1.11 is connected to the camshaft gear 1.10, and the camshaft gear 1.10 is connected to the camshaft 1.9. The pitch plate 1.8 has the same number of curved guide holes 1.19 as the pitch-up power supply pin 1.1. Under the drive of the pitch-up power source 1.4, the pitch plate 1.8 moves longitudinally relative to the first power mounting base 1.7. During the longitudinal movement of the pitch plate 1.8, the pitch plate rack 1.11 drives the camshaft gear 1.10 to rotate, thereby driving the camshaft 1.9 to rotate, realizing the rotation of the pitch-up power supply pin 1.1. The forward and backward movement between different pins, i.e., longitudinal movement, is achieved simultaneously by the guide post 1.15 of the variable-pitch power supply pin 1.1 sliding within the curved guide hole 1.19 on the variable-pitch plate 1.8. This allows for synchronous longitudinal variable-pitch movement between the pins. The guide post 1.15 can slide to different positions within the curved guide hole 1.19 to adapt to different modes. For example, sliding to the first position allows for connection to a three-phase inductive energy meter, sliding to the second position allows for connection to a three-phase direct energy meter, and sliding to the third position allows for connection to a single-phase energy meter. This invention does not impose specific limitations; different pitches can be achieved by changing the guide shape of the curved guide hole 1.19 on the variable-pitch plate 1.8, thereby enabling connection to different meters.

[0047] Specifically, in this embodiment, the variable-pitch power supply pin 1.1 includes a pin body, one end of which is tightly fitted to the camshaft 1.9. The pin body is provided with a guide post 1.15, which slides along a curved guide hole 1.19 on the variable-pitch plate 1.8. A compressed return spring 1.16 is provided between the guide post 1.15 and the end of the pin body near the camshaft 1.9. The pin body includes a tube segment, a pin holder 1.18, and a power-connecting pin 1.12. One end of the electro-receiving needle 1.12 is placed inside the tube segment and connected to the needle holder 1.18 via the buffer spring 1.14. The electro-receiving needle 1.12 is provided with a limiting ball 1.13, which is positioned between the electro-receiving needle 1.12 and the inner wall of the tube segment. The limiting ball 1.13 restricts the axial movement of the electro-receiving needle 1.12 and also restricts its rotational movement around the axial direction. The connection between one end of the electro-receiving needle 1.12 and the needle holder 1.18 via the buffer spring 1.14 enables the electro-receiving needle 1.12 to... The pin holder 1.18 moves longitudinally relative to the pin holder 1.18, thereby achieving tolerance during power connection and ensuring reliable power connection of the variable-pitch power supply pin 1.1 terminal; the guide post 1.15, driven by the variable-pitch plate 1.8, can move along the guide shape of the curved guide hole 1.19 of the variable-pitch plate 1.8, thereby realizing the horizontal variable-pitch movement between each power connection pin 1.12. For example, sliding to the first position can match the power connection of a three-phase inductive energy meter, sliding to the second position can match the power connection of a three-phase direct energy meter, and sliding to the third position can match the power connection of a three-phase direct energy meter. When connecting a single-phase energy meter, A is the first position, B is the second position, and C is the third position. This utility model is not specifically limited; in fact, different pitches can be achieved by changing the guiding shape of the curved guide hole 1.19 on the pitch plate 1.8, thereby enabling different meters to be connected. The reset spring 1.16 causes the needle holder 1.18 and the connecting needle 1.12 to move towards the camshaft 1.9, so that the needle holder 1.18 is always in close contact with the camshaft 1.9, thereby realizing the back-and-forth movement of the connecting needle 1.12.

[0048] Specifically, in this embodiment, the power source 5 of the power connection device includes a power source for a single / three-phase power connection device 1, a variable pitch power source 1.4, a power source for a single-phase auxiliary terminal pin 1.5, and a power source for a three-phase auxiliary terminal pin 1.6. The power source for the single / three-phase power connection device 1 is used to drive the single / three-phase power connection device 1 to move longitudinally. The power source for the variable pitch power source 1.4 is used to drive the variable pitch plate 1.8 to realize the lateral and longitudinal movement of the variable pitch power supply pin 1.1. The power source for the single-phase auxiliary terminal pin 1.5 is used to drive the longitudinal movement of the first single-phase energy meter auxiliary terminal pin 1.2. The power source for the three-phase auxiliary terminal pin 1.6 is used to drive the longitudinal movement of the three-phase energy meter auxiliary terminal pin 1.3. Each power source is independent and does not interfere with the others. Specifically, in this embodiment, the terminal power connection device 2 is provided with a second power mounting base 2.167 and, placed within the second power mounting base 2.167, independently driven by the power source 5, terminal variable pitch power-on voltage pins 2.10, 2.11 (second single-phase energy meter auxiliary terminal), 2.12 (Type I concentrator auxiliary terminal), A2.13 (Type III special transformer terminal auxiliary terminal), B2.14 (Type III special transformer terminal auxiliary terminal), and 2.15 (energy controller auxiliary terminal); the terminal variable pitch power-on... Voltage pin 2.10 drives the pitch plate 1.8 via the power source 5 of the power connection device to achieve lateral and longitudinal movement between different pins; the auxiliary terminal pins 2.11 of the second single-phase energy meter, the auxiliary terminal pins 2.12 of the type I concentrator, the auxiliary terminal pins A2.13 and B2.14 of the type III special transformer terminal, and the auxiliary terminal pins 2.15 of the energy controller achieve overall longitudinal movement via the second guide mechanism; the power source 5 of the power connection device includes the power source of the terminal power connection device 2, the power source of the pitch plate 2.6, and the single-phase... The auxiliary pin power source 2.3, the type I concentrator auxiliary pin power source 2.4, the type III special transformer terminal auxiliary pin power source A2.2, the type III special transformer terminal auxiliary pin power source B2.5, the energy controller auxiliary pin power source 2.1, and the auxiliary pin switching power source 2.7; the pitch plate power source 2.6 is used to drive the pitch plate 1.8 to realize the lateral and longitudinal movement of the terminal pitch-changing voltage pin 2.10, that is, the terminal pitch-changing voltage pin 2.10 can not only realize the overall longitudinal movement, but also the lateral pitch-changing movement. The guide post 1.15 of the terminal variable pitch voltage pin 2.10, driven by the variable pitch plate 1.8, can move along the guide shape of the curved guide hole 1.19 of the variable pitch plate 1.8, thereby realizing the horizontal variable pitch movement between each pin. For example, sliding to the fourth position can match the single-phase plug-in mode, sliding to the fifth position can match the type I concentrator plug-in mode, and sliding to the sixth position can match the energy controller (dedicated transformer) plug-in mode. This utility model is not specifically limited, but can be specifically modified by changing the curved guide hole 1 on the variable pitch plate 1.8.The guide shape of 19 achieves different pitch variations, thereby enabling power connection for different meters. The pitch plate 1.8 and the terminal pitch voltage pin 2.10 of the terminal power connection device 2 have the same structure as the pitch plate 1.8 and the pitch power supply pin 1.1 of the single / three-phase power connection device 1, that is, the implementation principle is the same, and will not be described in detail here. The single-phase auxiliary pin power source 2.3, the type I concentrator auxiliary pin power source 2.4, the type III special transformer terminal auxiliary pin power source A2.2, the type III special transformer terminal auxiliary pin power source B2.5, and the energy controller auxiliary pin power source 2.1 are respectively used to drive the auxiliary terminal pin 2.11 of the second single-phase energy meter, the auxiliary terminal pin 2.12 of the type I concentrator, and the auxiliary terminal pin 2.12 of the type III special transformer. The auxiliary terminal pins A2.13, B2.14, and 2.15 of the type III special transformer terminal move longitudinally. The second guiding mechanism includes a second guide member and a second guide groove 2.8. The second guide member is respectively disposed on both sides of the single-phase energy meter auxiliary terminal pin, the type I concentrator auxiliary terminal pin 2.12, the type III special transformer terminal auxiliary terminal pin A2.13, the type III special transformer terminal auxiliary terminal pin B2.14, and the energy controller auxiliary terminal pin 2.15. The second guide groove 2.8 is respectively disposed on the second power mounting base 2.167 and the single-phase energy meter auxiliary terminal pin, the type I concentrator auxiliary terminal pin 2.12, and the type III special transformer terminal auxiliary terminal pin A2.15. 2.13, the inner walls on both sides of the second guide member connecting the Type III special transformer terminal auxiliary terminal pin B2.14 and the energy controller auxiliary terminal pin 2.15, the second guide member sliding in the second guide groove 2.8, driving the single-phase energy meter auxiliary terminal pin, the Type I concentrator auxiliary terminal pin 2.12, the Type III special transformer terminal auxiliary terminal pin A2.2, the Type III special transformer terminal auxiliary terminal pin B2.5, and the energy controller auxiliary terminal pin 2.15 respectively through the power source 2.4, the power source 2.4, the power source 2.4, the power source 2.5, the power source 2.1, and the power source 2.1, the power source 2.1, the power source 2.1, the power source 2.12, the power source 2.13, the power source 2.14, and the power source 2.15, ... The system enables longitudinal movement relative to the second power mounting base 2.167, i.e., back-and-forth movement. In addition to individual back-and-forth movement, the energy controller auxiliary terminal pin 2.15 and the Type III special transformer terminal auxiliary terminal pin B2.14 can also move up and down as a whole via a third guide mechanism driven by the auxiliary terminal pin switching power, thereby enabling power connection to the auxiliary terminal pins of different meter models at conflicting positions. The third guide mechanism includes a third guide member and a third guide groove 2.9. The third guide member is respectively disposed on both sides of the energy controller auxiliary terminal pin 2.15 and the Type III special transformer terminal auxiliary terminal pin B2.14, and the third guide groove 2.9 is respectively disposed on the second mounting base 7 and the energy controller auxiliary terminal pin 2.The third guide member connects the inner walls of the two sides of the auxiliary terminal pin B2.14 of the Type III special transformer terminal. The third guide groove 2.9 is vertically arranged relative to the second guide groove 2.8. The third guide member slides within the third guide groove 2.9, thereby realizing the up-and-down movement of the energy controller auxiliary terminal pin 2.15 and the Type III special transformer terminal auxiliary terminal pin B2.14.

[0049] Specifically, in this embodiment, taking a single-phase energy meter as an example, at the start of the testing process, the single-phase energy meter is placed in the corresponding test position. The variable pitch power source 1.4 drives the variable pitch plate 1.8 to change the pitch of the variable pitch power supply pin 1.1. At the same time, the auxiliary terminal pin of the single-phase energy meter moves longitudinally towards the energy meter. After the power connection pin switching is completed, the single / three-phase power connection device 1 moves longitudinally towards the single-phase energy meter under the drive of the power source of the single / three-phase power connection device 1, so that the auxiliary terminal pin of the single-phase energy meter and the variable pitch power supply pin 1.1 are inserted into the corresponding terminals of the single-phase energy meter, thereby realizing the reliable power connection of the single-phase energy meter. After the test is completed, the single / three-phase power connection device 1 moves backward as a whole, completing the power connection task of the single-phase energy meter in this round.

[0050] Specifically, in this embodiment, taking a Type III special transformer terminal as an example, when the testing begins, the Type III special transformer terminal is placed in the corresponding test position. The pitch plate power source 2.6 drives the pitch plate 1.8 to realize the pitch change of the terminal pitch-on voltage pins 2.10, including the lateral and longitudinal pitch change between the terminal pitch-on voltage pins 2.10. At the same time, the Type III special transformer terminal auxiliary terminal pin B2.14 moves upward, that is, it moves upward through the third guide mechanism. The Type III special transformer terminal auxiliary terminal pins A2.13 and Type III special transformer terminal auxiliary terminal pins... B2.14 moves longitudinally towards the Type III transformer terminal. The power source of the terminal power connection device 2 drives the entire terminal power connection device 2 to move closer to the Type III transformer terminal, so that the terminal pitch voltage pin 2.10, the Type III transformer terminal auxiliary terminal pin A2.13, and the Type III transformer terminal auxiliary terminal pin B2.14 are inserted into the corresponding terminals of the Type III transformer terminal, thereby realizing reliable power connection of the Type III transformer terminal. After the test is completed, the entire terminal power connection device 2 moves backward, completing the test of the Type III transformer terminal in this round.

[0051] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A universal flexible automated power connection device, characterized in that, include: Mounting base and single / three-phase power connection device, terminal power connection device, power source and housing of the power connection device placed on the mounting base; The mounting base is provided with single / three-phase test positions and terminal test positions. The device under test is placed in the single / three-phase test positions and / or terminal test positions and is detachably connected to the mounting base. The single / three-phase power connection device and the terminal power connection device are powered by the power source of the power connection device and are slidably connected to the mounting base to realize the power connection test of the device under test placed in the single / three-phase test positions and / or terminal test positions. The outer shell is placed on the mounting base and forms an open cavity with the mounting base. The single / three-phase power connection device and the terminal power connection device are placed in the cavity.

2. A universal flexible automated power connection device according to claim 1, wherein, The single / three-phase power connection device is equipped with a variable-pitch power supply pin, a first single-phase energy meter auxiliary terminal pin, and a three-phase energy meter auxiliary terminal pin, each driven independently by the power source of the power connection device. The variable-pitch power supply pin achieves lateral and longitudinal movement between different pins by driving the variable-pitch plate through the power source of the power connection device. The first single-phase energy meter auxiliary terminal pin and the three-phase energy meter auxiliary terminal pin achieve overall longitudinal movement through a first guide mechanism.

3. A universal flexible automated power connection device according to claim 2, wherein, The pitch plate is provided with a camshaft, a camshaft gear and a pitch plate rack on the side near the pitch power supply pin; the pitch plate rack is connected to the camshaft gear, and the camshaft gear is connected to the camshaft.

4. A universal flexible automated power connection device according to claim 3, wherein, The pitch plate has the same number of curved guide holes as the pitch power supply pins.

5. A universal flexible automated power connection device as claimed in claim 4, wherein, The variable pitch power supply pin includes a pin body, one end of which is tightly fitted to the camshaft. The pin body is provided with a guide post, which slides along the curved guide hole on the variable pitch plate. A compressed return spring is provided between the guide post and the end of the pin body near the camshaft.

6. A universal flexible automated power connection device as claimed in claim 5, wherein, The needle body includes a tube segment, a needle holder, and an electrical receiving needle; one end of the electrical receiving needle is placed inside the tube segment, and the electrical receiving needle is connected to the needle holder through a buffer spring.

7. A universal flexible automated power connection device as claimed in claim 6, wherein, The electrode receiving needle is provided with a limiting ball, which is placed between the electrode receiving needle and the inner wall of the pipe section.

8. A universal flexible automated power connection device as claimed in claim 2, wherein, The power source for the power connection device includes a single / three-phase power connection device power source, a variable pitch power source, a single-phase auxiliary terminal pin power source, and a three-phase auxiliary terminal pin power source. The single / three-phase power connection device power source is used to drive the longitudinal movement of the single / three-phase power connection device. The variable pitch power source is used to drive the variable pitch plate to realize the lateral and longitudinal movement of the variable pitch power supply pin. The single-phase auxiliary terminal pin power source is used to drive the longitudinal movement of the auxiliary terminal pin of the first single-phase energy meter. The three-phase auxiliary terminal pin power source is used to drive the longitudinal movement of the auxiliary terminal pin of the three-phase energy meter.

9. A universal flexible automated electrical connector as claimed in any one of claims 1 to 8, wherein, The terminal power connection device is equipped with a terminal variable pitch power-on voltage pin, a second single-phase energy meter auxiliary terminal pin, a type I concentrator auxiliary terminal pin, a type III special transformer terminal auxiliary terminal pin A, a type III special transformer terminal auxiliary terminal pin B, and an energy controller auxiliary terminal pin, each driven independently by the power connection device power source. The terminal variable pitch power-on voltage pin achieves lateral and longitudinal movement between different pins by driving the variable pitch plate through the power connection device power source. The second single-phase energy meter auxiliary terminal pin, the type I concentrator auxiliary terminal pin, the type III special transformer terminal auxiliary terminal pin A, the type III special transformer terminal auxiliary terminal pin B, and the energy controller auxiliary terminal pin achieve overall longitudinal movement through a second guide mechanism.

10. A universal flexible automated power coupling device as claimed in claim 9, wherein, The power source of the power connection device includes a terminal power connection device power source, a variable pitch plate power source, a single-phase auxiliary pin power source, a type I concentrator auxiliary pin power source, a type III special transformer terminal auxiliary pin power source A, a type III special transformer terminal auxiliary pin power source B, an energy controller auxiliary pin power source, and an auxiliary pin switching power source.

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