Universal flexible automatic power connection device

Abstract

The invention discloses a universal flexible automatic power connection device, which comprises a mounting seat, and a single / three-phase power connection device, a terminal power connection device and a power connection device power source which are arranged on the mounting seat, the mounting base is provided with a single / three-phase test position and a terminal test position, a tested mechanism is arranged at the single / three-phase test position and / or the terminal test position and is detachably connected with the mounting base, and the single / three-phase power connection device and the terminal power connection device are connected with the mounting base in a sliding mode through power provided by the power connection device power source. The power connection test of the tested mechanism arranged at the single / three-phase test position and / or the terminal test position is realized; the tested mechanism comprises a single-phase electric energy meter, a three-phase direct type electric energy meter, a three-phase inductance type electric energy meter, an I-type concentrator, an II-type concentrator, an III-type special transformer terminal and an energy controller. The technical problems that an existing power connection device cannot be compatible with access and synchronous measurement of multiple types of electric energy metering products and is low in automation capacity are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy metering, and in particular to a universal flexible automatic power connection device. Background Art

[0002] At present, the automatic power connection devices of domestic electric energy metering products are all dedicated, that is, one type of electric energy metering product needs to use a dedicated power connection device for power connection. However, there are many existing electric energy metering products, such as single-phase electric energy meter, three-phase direct electric energy meter, three-phase mutual inductor electric energy meter, terminal, etc. Therefore, when conducting accuracy testing, measurement and testing institutions need to purchase multiple testing production lines for automated testing, and most of the production lines are dedicated and cannot be compatible. Some testing institutions have tried to test compatibility, mainly by setting up Multi-layer electric energy meter sockets are tested on both single-layer, double-sided, and double-layer, double-sided platforms. Single-layer, double-sided layouts require selecting the meter socket wiring by rotating the tooling plate. This makes them compatible with only two types of equipment and prevents simultaneous measurement on both sides. Rotating and lifting the tooling plate allows for selection of the meter socket wiring, making them compatible with four types of product verification. This reduces the reliability of the upper-layer crimping on these lines, preventing simultaneous measurement on both sides. Furthermore, manual power connection is required during electromagnetic compatibility testing, resulting in a large area occupied by the accuracy testing line and high labor intensity and low efficiency for tests like electromagnetic compatibility. Therefore, a universal, flexible, and automated power connection device is urgently needed to address the technical issues of existing power connection devices, which are incompatible with the connection and simultaneous measurement of multiple types of electric energy metering products and have low automation capabilities. Summary of the Invention

[0003] The main purpose of the present invention is to propose a universal flexible automatic power connection device, which aims to solve the technical problems that existing power connection devices are not compatible with the access and synchronous measurement of multiple types of electric energy metering products and have low automation capabilities.

[0004] To achieve the above-mentioned objectives, the present invention provides a universal flexible automatic power connection device, wherein the universal flexible automatic power connection device includes: a mounting base and a single / three-phase power connection device, a terminal power connection device and a power source for the power connection device placed on the mounting base; the mounting base is provided with a single / three-phase test position and a terminal test position, the tested mechanism 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 of the power connection device and are slidably connected to the mounting base to realize power connection testing of the tested mechanism placed in the single / three-phase test position and / or the terminal test position; the tested mechanism includes a single-phase electric energy meter, a three-phase direct electric energy meter, a three-phase mutual induction electric energy meter, a type I concentrator, a type II concentrator, a type III special transformer terminal and an energy controller.

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

[0006] In one of the preferred solutions, a camshaft, a camshaft gear and a pitch plate rack are provided on the side of the pitch plate close to the pitch power pin; the pitch plate rack is transmission-connected to the camshaft gear, and the camshaft gear is connected to the camshaft.

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

[0008] One of the preferred solutions is that the variable pitch power supply pin includes a pin body, one end of the pin body is tightly fitted with the camshaft, a guide column is provided on the pin body, the guide column slides along the curved guide hole on the variable pitch plate, and a compressed return spring is provided between the guide column and one end of the pin body close to the camshaft.

[0009] In one of the preferred solutions, the pin body includes a tube section, a pin holder and an electrical connection pin; one end of the electrical connection pin is placed in the tube section, and the electrical connection pin is connected to the pin holder via the buffer spring.

[0010] In one of the preferred solutions, a limiting ball is provided on the current connecting needle, and the limiting ball is placed between the current connecting needle and the inner wall of the pipe section.

[0011] One of the preferred solutions, 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 single / three-phase power connection device to move longitudinally, 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 first single-phase electric energy meter auxiliary terminal pin to move longitudinally, and the three-phase auxiliary terminal pin power source is used to drive the three-phase electric energy meter auxiliary terminal pin to move longitudinally.

[0012] In one of the preferred schemes, the terminal power connection device is provided with a terminal variable pitch power-on voltage pin, a second single-phase electric 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, which are independently driven by the power source of the power connection device; the terminal variable pitch power-on voltage pin drives the pitch change plate through the power source of the power connection device to realize lateral and longitudinal movement between different pins; the second single-phase electric 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 realize overall longitudinal movement through the second guide mechanism.

[0013] One of the preferred solutions is that the power source of the power connection device includes the power source of the terminal power connection device, the power source of the pitch plate, the single-phase auxiliary pin power source, the type I concentrator auxiliary pin power source, the type III special transformer terminal auxiliary pin power source A, the type III special transformer terminal auxiliary pin power source B, the energy controller auxiliary pin power source and the auxiliary pin switching power.

[0014] In the above technical solution of the present invention, the universal flexible automatic power connection device includes: a mounting base and a single / three-phase power connection device, a terminal power connection device and a power source for the power connection device placed on the mounting base; the mounting base is provided with a single / three-phase test position and a terminal test position, the tested mechanism 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 of the power connection device and are slidably connected to the mounting base to realize power connection testing of the tested mechanism placed in the single / three-phase test position and / or the terminal test position; the tested mechanism includes a single-phase electric energy meter, a three-phase direct electric energy meter, a three-phase mutual induction electric energy meter, a type I concentrator, a type II concentrator, a type III special transformer terminal and an energy controller. The present invention solves the technical problems that the existing power connection device cannot be compatible with the access and synchronous measurement of multiple types of electric energy metering products and has low automation capabilities.

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

[0016] In the present invention, a plurality of curved guide holes are provided on the pitch variable plate, and the power pin on the pitch variable plate slides in each curved guide hole. Different pitches can be achieved by sliding to different positions. At the same time, the rack on the pitch variable plate is driven by the gear shaft to move back and forth, that is, longitudinal movement, thereby realizing compatible power connection of single-phase electricity meter, three-phase direct electricity meter, three-phase mutual induction electricity meter, type I concentrator, type II concentrator, type III special transformer terminal, and energy controller (special transformer). BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

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

[0019] Figure 2 This is a second schematic diagram of a universal flexible automatic 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 a single / three-phase power connection device according to an embodiment of the present invention;

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

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

[0026] Figure 9 This is a schematic diagram of the connection of the variable-distance power-on power pins according to an embodiment of the present invention;

[0027] Figure 10 A schematic diagram of a variable-distance power-on power pin according to an embodiment of the present invention;

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

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

[0030] Figure 13 This is a schematic diagram of the connection of the variable-pitch power-on voltage pins of the terminal according to an embodiment of the present invention;

[0031] Figure 14 Schematic diagram of a general-purpose flexible automatic power connection device for an assembly line according to an embodiment of the present invention;

[0032] Figure 15 Schematic diagram of the limiting mechanism according to an embodiment of the present invention.

[0033] Description of Figure 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 of power connection device; 6. Limit mechanism; 7. Mounting seat; 8. Housing; 1.1. Variable pitch power supply pin; 1.2. First single-phase electric energy meter auxiliary terminal pin; 1.3. Three-phase electric energy meter auxiliary terminal pin; 1.4. Variable pitch 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 seat; 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 column; 1.16. Return spring; 1.17. First guide groove; 1.18. Needle holder; 1.1 9. Curved guide hole; 2.1. Auxiliary pin power source for energy controller; 2.2. Auxiliary pin power source A for type III special transformer terminal; 2.3. Auxiliary pin power source for single-phase; 2.4. Auxiliary pin power source for type I concentrator; 2.5. Auxiliary pin power source B for type III special transformer terminal; 2.6. Power source for pitch changer; 2.7. Auxiliary pin switching power; 2.8. Second guide groove; 2.9. Third guide groove; 2.10. Terminal pitch changer power-on voltage pin; 2.11. Second single-phase electric energy meter auxiliary terminal pin; 2.12. Auxiliary terminal pin for type I concentrator; 2.13. Auxiliary terminal pin A for type III special transformer terminal; 2.14. Auxiliary terminal pin B for type III special transformer terminal; 2.15. Auxiliary terminal pin for energy controller; 2.16. Second power mounting seat; 6.1. Limit spring.

[0035] The realization of the objectives, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0037] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of these features.

[0039] Moreover, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] See also Figures 1-15 According to one aspect of the present invention, the present invention provides a universal flexible automatic power connection device, wherein the universal flexible automatic power connection device includes: a mounting base 7 and a single / three-phase power connection device 1, a terminal power connection device 2 and a power connection device power source 5 placed on the mounting base 7; a single / three-phase test position 3 and a terminal test position 4 are provided on the mounting base 7, and the tested mechanism is placed in the single / three-phase test position 3 and / or the terminal test position 4 and is detachably connected to the mounting base, and 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 source 5 of the power connection device to realize the power connection test of the tested mechanism placed in the single / three-phase test position 3 and / or the terminal test position 4; the tested mechanism includes a single-phase electric energy meter, a three-phase direct electric energy meter, a three-phase mutual induction electric energy meter, a type I concentrator, a type II concentrator, a type III special transformer terminal and an energy controller.

[0041] Specifically, in this embodiment, the universal flexible automatic power connection device of the present invention can realize compatible power connection of single-phase electricity meter, three-phase direct electricity meter, three-phase mutual induction electricity meter, type I concentrator, type II concentrator, type III special transformer terminal, and energy controller (special transformer); the universal flexible automatic power connection device can be set as a table type and an assembly line type, and the table type layout is mainly used for electromagnetic compatibility testing; the mounting base 7 of the universal flexible automatic power connection device is provided with two test positions, namely a single / three-phase test position 3 and a terminal test position 4, the single / three-phase test position 3 can realize power connection test of single-phase smart electricity meter, type II concentrator, three-phase direct electricity meter, and three-phase mutual induction electricity meter, and the terminal test position 4 supports power connection test of single-phase smart electricity meter, type I concentrator, type II concentrator, type III special transformer terminal and energy controller (special transformer).

[0042] Specifically, in this embodiment, the single / three-phase power connection device 1 and the terminal power connection device 2 can realize overall relative movement to the mounting base 7, and are powered by the power connection device power source 5, thereby realizing 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, and the mounting base 7 is provided with a slide groove. The sliding structure of the single / three-phase power connection device 1 and the terminal power connection device 2 is placed in the slide groove. Driven by the power connection device power source 5, the single / three-phase power connection device 1 and the terminal power connection device 2 can realize movement in the slide groove, that is, the longitudinal movement of the single / three-phase power connection device 1 and the terminal power connection device 2 is realized.

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

[0044] Specifically, in this embodiment, the universal flexible automatic power connection device also includes a shell 8, which is placed on the mounting base 7. After the shell 8 is connected to the mounting base 7, a receiving cavity with an open side is formed, and the single / three-phase power connection device 1 and the terminal power connection device 2 are placed in the receiving cavity.

[0045] Specifically, in the embodiment, the single / three-phase power connection device 1 is provided with a first power mounting seat 1.7 and a variable-distance upper power supply pin 1.1, a first single-phase electric energy meter auxiliary terminal pin 1.2 and a three-phase electric energy meter auxiliary terminal pin 1.3 independently driven by a power connection device power source 5 in the first power mounting seat 1.7; the variable-distance upper power supply pin 1.1 is driven by the power connection device power source 5 to realize horizontal and vertical movement between different pins through a variable-distance plate 1.8; the first single-phase electric energy meter auxiliary terminal pin 1.2 and the three-phase electric energy meter auxiliary terminal pin 1.3 realize overall vertical movement through a first guide mechanism, the first guide mechanism comprises a first guide piece and a first guide groove 1.17, the first guide piece is arranged on both sides of the first single-phase electric energy meter auxiliary terminal pin 1.2 and the three-phase electric energy meter auxiliary terminal pin 1.3 respectively, the first guide groove 1.17 is arranged in the inner wall of both sides of the first power mounting seat 1.7 and the first guide piece connected with the first single-phase electric energy meter auxiliary terminal pin 1.2 and the three-phase electric energy meter auxiliary terminal pin 1.3 respectively, the first guide piece slides in the first guide groove 1.17, and the first single-phase electric energy meter auxiliary terminal pin 1.2 and the three-phase electric energy meter auxiliary terminal pin 1.3 are independently driven by a single-phase auxiliary terminal pin power source 1.5 and a three-phase auxiliary terminal pin power source 1.6 to realize vertical movement relative to the first power mounting seat 1.7.

[0046] Specifically, in the embodiment, the variable-distance plate 1.8 is provided with a camshaft 1.9, a camshaft gear 1.10 and a variable-distance plate rack 1.11 on one side close to the variable-distance upper power supply pin 1.1; the variable-distance plate rack 1.11 is in transmission connection with the camshaft gear 1.10, and the camshaft gear 1.10 is connected with the camshaft 1.9; the variable-distance plate 1.8 is provided with the same number of curved guide holes 1.19 as the variable-distance upper power supply pin 1.1, the variable-distance plate 1.8 moves vertically relative to the first power mounting seat 1.7 under the drive of a variable-distance power source 1.4, in the process of vertical movement of the variable-distance plate 1.8, the variable-distance plate rack 1.11 drives the camshaft gear 1.10 to rotate, thereby driving the camshaft 1.9 to rotate, realizing the front-back movement, i.e. vertical movement, between different pins of the variable-distance upper power supply pin 1.1, meanwhile, the guide column 1.15 of the variable-distance upper power supply pin 1.1 slides in the curved guide hole 1.19 arranged on the variable-distance plate 1.8, thereby realizing the vertical variable-distance movement between pins synchronously, the guide column 1.15 slides to different positions in the curved guide hole 1.19 to adapt to different modes, for example, sliding to the first position can match three-phase mutual inductance type electric energy meter power connection, sliding to the second position can match three-phase direct type electric energy meter power connection, and sliding to the third position can match single-phase electric energy meter power connection; the present application is not limited specifically, and different variable distances can be realized by changing the guide shape of the curved guide hole 1.19 arranged on the variable-distance plate 1.8, thereby realizing power connection of 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 with the camshaft 1.9, and a guide column 1.15 is provided on the pin body. The guide column 1.15 slides along the curved guide hole 1.19 on the variable pitch plate 1.8, and a compressed return spring 1.16 is provided between the guide column 1.15 and the end of the pin body close to the camshaft 1.9; the pin body includes a tube section, a needle holder 1.18 and a power connection pin 1.12; One end of the connecting needle 1.12 is placed in the pipe section and connected to the needle holder 1.18 through the buffer spring 1.14; a limiting ball 1.13 is provided on the connecting needle 1.12, and the limiting ball 1.13 is placed between the connecting needle 1.12 and the inner wall of the pipe section. The limiting ball 1.13 is used to limit the connecting needle 1.12 to move along its axial direction and to limit its rotational movement around the axial direction; one end of the connecting needle 1.12 is connected to the needle holder 1.18 through the buffer spring 1.14, so that the connecting needle 1.12 can be connected to the needle holder 1.18. 12 moves longitudinally relative to the needle holder 1.18, thereby achieving tolerance when connecting to the power supply, so that the variable-pitch power supply pin 1.1 terminal can be reliably connected to the power supply; the guide column 1.15 can move along the guide shape of the curved guide hole 1.19 of the variable-pitch plate 1.8 under the drive of the variable-pitch plate 1.8, thereby achieving horizontal variable-pitch movement between each power connection pin 1.12, such as sliding to the first position to match the three-phase mutual induction type power meter connection, sliding to the second position to match the three-phase direct type power meter connection, sliding to the third position to match Matching the power connection of a single-phase electric energy meter, A is the first position, B is the second position, and C is the third position; the present invention does not make specific limitations, and specifically different pitches can be achieved by changing the guide shape of the curved guide hole 1.19 provided on the pitch plate 1.8, thereby achieving power connection for different meters; the reset spring 1.16 causes the needle holder 1.18 to move together with the power connection needle 1.12 toward the camshaft 1.9, so that the needle holder 1.18 is always close to the camshaft 1.9, thereby achieving the back and forth movement of the power connection needle 1.12.

[0048] Specifically, in this embodiment, the power source 5 of the power connection device includes a single-phase / three-phase power connection device 1 power source, a variable pitch power source 1.4, a single-phase auxiliary terminal pin power source 1.5, and a three-phase auxiliary terminal pin power source 1.6; the single-phase / three-phase power connection device 1 power source is used to drive the single-phase / three-phase power connection device 1 to move longitudinally, the variable pitch power source 1.4 is used to drive the variable pitch plate 1.8 to achieve lateral and longitudinal movement of the variable pitch power supply pin 1.1, the single-phase auxiliary terminal pin power source 1.5 is used to drive the first single-phase electric energy meter auxiliary terminal pin 1.2 to move longitudinally, and the three-phase auxiliary terminal pin power source 1.6 is used to drive the three-phase electric energy meter auxiliary terminal pin 1.3 to move longitudinally. The power sources are independent of each other and do not interfere with each other. Specifically, in this embodiment, the terminal power connection device 2 is provided with a second power mounting base 2.167 and a terminal variable pitch power-on voltage pin 2.10, a second single-phase electric energy meter auxiliary terminal pin 2.11, a type I concentrator auxiliary terminal pin 2.12, a type III special transformer terminal auxiliary terminal pin A2.13, a type III special transformer terminal auxiliary terminal pin B2.14 and an energy controller auxiliary terminal pin 2.15, which are independently driven by the power source 5 of the power connection device and are placed in the second power mounting base 2.167; The voltage pin 2.10 drives the pitch plate 1.8 through the power source 5 of the power connection device to realize the horizontal and vertical movement between different pins; the second single-phase electric energy meter auxiliary terminal pin 2.11, 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 realize the overall longitudinal movement through 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 pitch plate power source 2.6, the single Phase auxiliary pin power source 2.3, type I concentrator auxiliary pin power source 2.4, type III dedicated transformer terminal auxiliary pin power source A2.2, type III dedicated transformer terminal auxiliary pin power source B2.5, energy controller auxiliary pin power source 2.1 and auxiliary pin switching power 2.7; the pitch plate power source 2.6 is used to drive the pitch plate 1.8 to achieve lateral and longitudinal movement of the terminal variable pitch power-on voltage pin 2.10, that is, the terminal variable pitch power-on voltage pin 2.10 can not only achieve overall longitudinal movement, but also achieve lateral pitch change. The guide post 1.15 of the terminal pitch-changing voltage pin 2.10 can move along the guide shape of the curved guide hole 1.19 of the pitch-changing plate 1.8 under the drive of the pitch-changing plate 1.8, thereby realizing horizontal pitch-changing movement between the pins. For example, if it slides to the fourth position, it can match the single-phase plug-in mode; if it slides to the fifth position, it can match the I-type concentrator plug-in mode; if it slides to the sixth position, it can match the energy controller (special transformer) plug-in mode. The present invention is not specifically limited to this. Specifically, it can be changed by changing the curved guide hole 1.19 provided on the pitch-changing plate 1.8.The guide shape of 19 realizes different pitch changes, thereby realizing the power connection of different meters. The pitch plate 1.8 and the terminal pitch-changing power-on voltage pin 2.10 of the terminal power connection device 2 have the same structure as the pitch plate 1.8 and the pitch-changing power supply pin 1.1 of the single / three-phase power connection device 1, that is, the implementation principle is the same, and the present invention will not repeat them; 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 second single-phase electric energy meter auxiliary terminal pin 2.11, the type I concentrator auxiliary terminal pin 2.12, the type III special transformer terminal auxiliary The terminal pin A2.13, the type III special transformer terminal auxiliary terminal pin B2.14 and the energy controller auxiliary terminal pin 2.15 move longitudinally, and the second guide mechanism includes a second guide member and a second guide groove 2.8. The second guide members are respectively arranged on both sides of the single-phase electric 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 arranged on the second power mounting seat 2.167 and the single-phase electric 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 inner walls on both sides of the second guide piece connected to the auxiliary terminal pin B2.14 of the type III special transformer terminal and the auxiliary terminal pin 2.15 of the energy controller, the second guide piece slides in the second guide groove 2.8, and the single-phase electric energy meter auxiliary terminal pin, 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 respectively drive the single-phase electric 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 to be connected. The auxiliary terminal pins 2.15 and the auxiliary terminal pins B2.14 of the type III special transformer terminal can not only move forward and backward independently, but can also move up and down as a whole through the third guide mechanism under the drive of the auxiliary terminal pin switching power, thereby connecting the auxiliary terminal pins of different types of meters in conflicting positions; the third guide mechanism includes a third guide member and a third guide slot 2.9, the third guide member is respectively provided on both sides of the auxiliary terminal pins 2.15 and the auxiliary terminal pins B2.14 of the type III special transformer terminal, and the third guide slot 2.9 is respectively provided on the second mounting base 7 and the auxiliary terminal pins 2.15 of the energy controller.The inner walls on both sides of the third guide member connecting the auxiliary terminal pin B2.14 of the type III dedicated transformer terminal and the auxiliary terminal pin 2.15 are connected. The third guide slot 2.9 is arranged perpendicularly relative to the second guide slot 2.8. The third guide member slides within the third guide slot 2.9, thereby achieving the up and down movement of the auxiliary terminal pin 2.15 of the energy controller and the auxiliary terminal pin B2.14 of the type III dedicated transformer terminal.

[0049] Specifically, in this embodiment, taking a single-phase electric energy meter as an example, at the beginning of the detection work, the single-phase electric energy meter is placed in the corresponding test position, and the variable pitch power source 1.4 drives the variable pitch plate 1.8 to realize the variable pitch power supply pin 1.1 pitch change. At the same time, the auxiliary terminal pin of the single-phase electric energy meter moves longitudinally toward the direction close to the electric energy meter. After the power connection pin is switched, the single / three-phase power connection device 1 moves longitudinally as a whole toward the direction close to the single-phase electric energy meter under the drive of the single / three-phase power connection device 1 power source, so that the auxiliary terminal pin of the single-phase electric energy meter and the variable pitch power supply pin 1.1 are inserted into the corresponding terminals of the single-phase electric energy meter, thereby realizing reliable power connection of the single-phase electric energy meter. After the test is completed, the single / three-phase power connection device 1 retreats as a whole to complete the power connection task of this round of single-phase electric energy meter.

[0050] Specifically, in this embodiment, taking the type III special transformer terminal as an example, when the detection work starts, the type III special transformer terminal is placed in the corresponding test position, and the pitch plate power source 2.6 drives the pitch plate 1.8 to realize the pitch change of the terminal pitch power-on voltage pin 2.10, including the horizontal and vertical pitch change between the terminal pitch power-on voltage pins 2.10. At the same time, the auxiliary terminal pin B2.14 of the type III special transformer terminal moves upward, that is, moves upward through the third guide mechanism, and the auxiliary terminal pins A2.13 of the type III special transformer terminal and the auxiliary terminal pins A2.14 of the type III special transformer terminal are moved upward. B2.14 moves longitudinally toward the direction of the Type III special transformer terminal, and the terminal power connection device 2 is driven as a whole toward the direction of the Type III special transformer terminal through the power source of the terminal power connection device 2, so that the terminal variable pitch power-on voltage pin 2.10, the Type III special transformer terminal auxiliary terminal pin A2.13 and the Type III special transformer terminal auxiliary terminal pin B2.14 are inserted into the corresponding terminals of the Type III special transformer terminal, thereby realizing reliable power connection of the Type III special transformer terminal. After the test is completed, the terminal power connection device 2 retreats as a whole, completing this round of Type III special transformer terminal detection.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A universal flexible automatic power connection device, characterized in that: include: A mounting base and a single / three-phase power connection device, a terminal power connection device and a power source for the power connection device placed on the mounting base; The mounting base is provided with a single / three-phase test position and a terminal test position. The tested mechanism 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 of the power connection device and are slidably connected to the mounting base to realize power connection testing of the tested mechanism placed in the single / three-phase test position and / or the terminal test position; the tested mechanism includes a single-phase electric energy meter, a three-phase direct electric energy meter, a three-phase mutual induction electric energy meter, a type I concentrator, a type II concentrator, a type III special transformer terminal and an energy controller.

2. A universal flexible automatic power connection device according to claim 1, characterized in that: The single / three-phase power connection device is provided with a variable-pitch power supply pin, a first single-phase electric energy meter auxiliary terminal pin and a three-phase electric energy meter auxiliary terminal pin, which are independently driven by the power source of the power connection device; the variable-pitch power supply pin drives the variable pitch plate through the power source of the power connection device to achieve lateral and longitudinal movement between different pins; the first single-phase electric energy meter auxiliary terminal pin and the three-phase electric energy meter auxiliary terminal pin achieve overall longitudinal movement through the first guide mechanism.

3. A universal flexible automatic power connection device according to claim 2, characterized in that: A camshaft, a camshaft gear and a pitch plate rack are provided on one side of the pitch plate close to the pitch power pin; the pitch plate rack is transmission-connected to the camshaft gear, and the camshaft gear is connected to the camshaft.

4. A universal flexible automatic power connection device according to claim 2, characterized in that: The pitch change plate is provided with the same number of curved guide holes as the pitch change power supply pins.

5. A universal flexible automatic power connection device according to claim 4, characterized in that: The variable pitch power supply pin includes a pin body, one end of the pin body is tightly fitted with the camshaft, a guide column is provided on the pin body, and the guide column slides along the curved guide hole on the variable pitch plate, and a compressed return spring is provided between the guide column and the end of the pin body close to the camshaft.

6. A universal flexible automatic power connection device according to claim 5, characterized in that: The pin body includes a tube section, a pin holder and an electrical connection pin; one end of the electrical connection pin is placed in the tube section, and the electrical connection pin is connected to the pin holder via the buffer spring.

7. A universal flexible automatic power connection device according to claim 2, characterized in that: The electric connection needle is provided with a limiting ball, and the limiting ball is placed between the electric connection needle and the inner wall of the pipe section.

8. A universal flexible automatic power connection device according to claim 2, characterized in that: 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 single / three-phase power connection device to move longitudinally, 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 first single-phase electric energy meter auxiliary terminal pin to move longitudinally, and the three-phase auxiliary terminal pin power source is used to drive the three-phase electric energy meter auxiliary terminal pin to move longitudinally.

9. A universal flexible automatic power connection device according to any one of claims 1 to 8, characterized in that: The terminal power connection device is provided with a terminal variable pitch power-on voltage pin, a second single-phase electric 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, which are independently driven by the power source of the power connection device; the terminal variable pitch power-on voltage pin drives the pitch change plate through the power source of the power connection device to achieve lateral and longitudinal movement between different pins; the second single-phase electric 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 automatic power connection device according to claim 9, characterized in that: The power source of the power connection device includes the power source of the terminal power connection device, the power source of the pitch plate, the single-phase auxiliary pin power source, the type I concentrator auxiliary pin power source, the type III special transformer terminal auxiliary pin power source A, the type III special transformer terminal auxiliary pin power source B, the energy controller auxiliary pin power source and the auxiliary pin switching power.

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