An overcurrent relay calibration device

Abstract

The utility model relates to the field of overcurrent relay calibration, especially a kind of overcurrent relay calibration device, it includes, installation component, including shell, the opening and interface hole respectively opened in shell outer wall, the assembly piece of sliding cooperation with opening;Connecting component, including circuit board, the socket being located at the outside of circuit board, the adapter being located between circuit board and socket;And, adapter includes first lead-in part and second lead-in part, first lead-in part and second lead-in part plug-in cooperation, and first lead-in part is electrically connected with socket, second lead-in part is electrically connected with circuit board, by setting assembly piece, the circuit board in calibration device is installed on first fixed plate, by setting adapter, the detachable connection between socket and circuit board is realized, when needing maintenance or replacing socket, only need to pull out first fixed plate, loosen the connection between first lead-in part and second lead-in part, replace corresponding socket can, without replacing entire circuit board, it is convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of overcurrent relay calibration, and in particular to an overcurrent relay calibration device. Background Technology

[0002] As an important component of power system protection, the accuracy and reliability of the overcurrent relay's operating characteristics are directly related to the safe and stable operation of the power grid. Therefore, regularly calibrating the overcurrent relay is a necessary means to ensure that its performance meets the standard requirements.

[0003] Currently, overcurrent relay calibration methods mainly rely on manual operation and fixed calibration equipment. These devices typically employ an integrated structure, requiring direct connection between the relay and the calibration device via wires during calibration, making the process cumbersome. For example, patent CN116203410A discloses a pluggable relay calibration device and method, including a housing, relay base, selector switch, terminal block assembly, battery, and test lamp assembly. The relay base and battery are located inside the housing, while the terminal block assembly is located at the bottom of the housing. During use, testing is performed by connecting wires through the terminal block assembly, and manual disassembly is required after testing.

[0004] However, existing methods require frequent plugging and unplugging of connection cables during the verification process, and the interfaces are prone to wear after long-term use, affecting the test accuracy. When the interface is damaged, since the interface components are fixedly connected to the main body of the verification device (such as welding or one-piece molding structure), the entire electrical connection module or even the entire circuit board often needs to be replaced during repair, which is not only complicated to operate, but also has high maintenance costs.

[0005] To address the aforementioned technical issues, we propose an overcurrent relay verification device. Utility Model Content

[0006] Therefore, the technical problem to be solved by this utility model is that the interface of the existing verification device is easily worn, inconvenient to replace and maintain, and has high maintenance costs.

[0007] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes an overcurrent relay calibration device, which includes: a mounting component, including a housing, an opening and an interface hole respectively opened on the outer wall of the housing, and an assembly that slides with the opening; a connecting component, including a circuit board, a socket disposed on the outside of the circuit board, and an adapter disposed between the circuit board and the socket; and the adapter includes a first conductive part and a second conductive part, the first conductive part and the second conductive part being inserted and engaged, and the first conductive part being electrically connected to the socket, and the second conductive part being electrically connected to the circuit board.

[0008] In a preferred embodiment of the overcurrent relay calibration device of this utility model: the assembly includes a first fixing plate movably disposed inside the housing, a second fixing plate fixedly connected to the first fixing plate, and an end cap disposed on the side wall of the first fixing plate and the second fixing plate.

[0009] In a preferred embodiment of the overcurrent relay calibration device of this utility model: the end cover abuts against the opening, and the outer wall of the end cover is provided with a sealing strip.

[0010] In a preferred embodiment of the overcurrent relay calibration device of this utility model: a through hole is provided on the outer wall of the second fixing plate; when the end cap abuts against the opening, the position of the through hole corresponds one-to-one with the interface hole.

[0011] In a preferred embodiment of the overcurrent relay testing device of this utility model: the socket is connected and engaged with the through hole.

[0012] In a preferred embodiment of the overcurrent relay testing device of this utility model: the adapter adopts a pluggable connector.

[0013] In a preferred embodiment of the overcurrent relay testing device of this utility model: the first fixing plate is provided with an abutting member, the abutting member includes a third fixing plate provided on the first fixing plate, the third fixing plate is provided with an abutting plate on its outside, and an elastic member is provided between the third fixing plate and the abutting plate.

[0014] In a preferred embodiment of the overcurrent relay calibration device of this utility model: the outer wall of the contact plate is provided with a wire groove, and the contact plate is movably engaged with the socket.

[0015] In a preferred embodiment of the overcurrent relay calibration device of this utility model: the first fixed plate is further provided with a guide plate, the guide plate is provided with a movable channel, and the movable channel is movablely engaged with the socket.

[0016] In a preferred embodiment of the overcurrent relay testing device of this utility model: a reinforcing plate is provided on the outer wall of the guide plate, and the reinforcing plate cooperates with the contact plate.

[0017] The beneficial effects of this utility model are as follows: by setting up the assembly, the circuit board inside the calibration device is installed on the first fixed plate, and the adapter is set up to realize the detachable connection between the socket and the circuit board. When it is necessary to repair or replace the socket, it is only necessary to pull out the first fixed plate, loosen the connection between the first guide part and the second guide part, and replace the corresponding socket. There is no need to replace the entire circuit board, which makes the operation convenient. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein: Figure 1 A schematic diagram of the installation component connection structure is shown; Figure 2 A schematic diagram of the through-hole connection structure is shown; Figure 3 A schematic diagram of the connection structure of the connecting components is shown; Figure 4 A schematic diagram of the mating component connection structure is shown. Detailed Implementation

[0019] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0021] Reference Figures 1-4 This embodiment provides an overcurrent relay calibration device, including a mounting assembly 1, comprising a housing 11, an opening 111 and an interface hole 112 respectively formed on the outer wall of the housing 11, and an assembly 12 slidably engaged with the opening 111; a connecting assembly 2, comprising a circuit board 21, a socket 22 disposed outside the circuit board 21, and an adapter 23 disposed between the circuit board 21 and the socket 22; and the adapter 23 includes a first conductive part 231 and a second conductive part 232, the first conductive part 231 and the second conductive part 232 being inserted into each other, and the first conductive part 231 being electrically connected to the socket 22, and the second conductive part 232 being electrically connected to the circuit board 21.

[0022] The first guide part 231 is connected to the socket 22 via a wire, and the second guide part 232 is connected to the circuit board 21 via a wire. Under normal circumstances, the circuit board 21 is directly connected to the socket 22 via a wire. When the socket 22 is worn or becomes insensitive, it needs to be repaired. Since the socket 22 is integrally formed or welded to the housing 11, the circuit board 21 is easily damaged during disassembly. Therefore, an adapter 23 is provided. When it is necessary to remove and replace the socket 22, it is only necessary to pull out the assembly 12 and then cancel the connection between the first guide part 231 and the second guide part 232. The socket 22 and the first guide part 231 connected to it can be directly replaced. This setting greatly reduces the maintenance difficulty for the staff and reduces the maintenance cost.

[0023] It should be noted that the specific circuit connection structure on the circuit board 21 is an existing structure within the existing verification device and will not be elaborated further in this case; the housing 11 is also equipped with a display screen to display the working status or related information of the circuit board 21, so that users can intuitively understand the operation of the device.

[0024] Furthermore, in this application, there is no limitation on the number of sockets 22 and interface holes 112, which can be adapted according to actual needs. When multiple sockets 22 and multiple interface holes 112 are set, the multiple sockets 22 are arranged side by side. The sockets 22 mainly include I+, I- terminals and IN sockets.

[0025] In one embodiment provided in this application, the assembly 12 includes a first fixing plate 121 movably disposed inside the housing 11, a second fixing plate 122 fixedly connected to the first fixing plate 121, and an end cap 123 disposed on the sidewall of the first fixing plate 121 and the second fixing plate 122.

[0026] The first fixing plate 121 and the second fixing plate 122 are vertically connected and the two are combined to form an "L" shaped structure. The first fixing plate 121 and the second fixing plate 122 are respectively slidably engaged with the adjacent sides of the inner wall of the housing 11.

[0027] It should be noted that, in this application, the use of a slider and a groove for sliding engagement, or other methods, is not excluded to achieve a sliding engagement between the assembly 12 and the housing 11.

[0028] In one embodiment provided in this application, the end cap 123 abuts against the opening 111, and the outer wall of the end cap 123 is provided with multiple layers of sealing strips 1231.

[0029] When the socket 22 is aligned with the interface hole 112, the end cap 123 is located on one side of the housing 11 and close to the opening 111, ensuring the internal sealing of the housing 11 and preventing dust or moisture from entering the interior of the housing 11.

[0030] In one embodiment provided in this application, a through hole 1221 is provided on the outer wall of the second fixing plate 122; when the end cap 123 abuts against the opening 111, the position of the through hole 1221 corresponds one-to-one with the interface hole 112.

[0031] The through hole 1221 is mainly used to install the socket 22. The cross-sectional area of ​​the interface hole 112 is smaller than that of the through hole 1221 and the socket 22, so as to ensure that the socket 22 can be installed stably, so that the socket 22 will not extend into the interface hole 112 during installation and will not hinder the first fixing plate 121 from sliding inside the housing 11.

[0032] In one embodiment provided in this application, the socket 22 is connected and engaged with the through hole 1221.

[0033] In one embodiment provided in this application, the adapter 23 is a pluggable connector. The pluggable connector has a male end and a female end, and the first conductive part 231 and the second conductive part 232 are plugged in and engaged, that is, the male end and the female end are plugged in and engaged, which can realize quick connection and disconnection between the circuit board 21 and the socket 22.

[0034] Specifically, during use, an external device or cable is inserted into the interface hole 112 to further connect the socket 22 to the external device or cable. When the socket 22 needs to be disassembled for maintenance, only the adapter 23 needs to be separated and the corresponding socket 22 replaced. There is no need to replace the socket 22 and the circuit board 21 as a whole, which reduces maintenance costs, improves the maintenance efficiency of the staff, and does not require professional skills. At the same time, since the socket 22 and the circuit board 21 can slide out of the housing 11, the socket 22 and the circuit board 21 can be operated without disassembling other structures of the housing 11, thereby further simplifying the maintenance process.

[0035] In one embodiment provided in this application, abutment 24 is provided on first fixing plate 121. Abutment 24 includes third fixing plate 241 provided on first fixing plate 121. Abutment plate 242 is provided on the outside of third fixing plate 241. Elastic member 243 is provided between third fixing plate 241 and abutment plate 242.

[0036] Among them, such as Figure 3 , Figure 4 As shown, the position of the abutment 24 corresponds one-to-one with the interface hole 112. The elastic element 243 is preferably a compression spring. The spring element 243 mainly provides the abutment plate 242 with elastic force to move in the direction of the interface hole 112, so that the abutment plate 242 can tightly abut against one side of the socket 22.

[0037] When installing the socket 22, push the abutment plate 242 to move away from the socket 22, compress the spring, and insert the socket 22 into the interface hole 112. After the socket 22 is fully inserted, release the abutment plate 242, the spring returns to its original position, and thus the abutment plate 242 moves closer to the socket 22 until it is locked in place.

[0038] In one embodiment provided in this application, the outer wall of the contact plate 242 is provided with a wire groove 2421 for the wires of the socket 22 to pass through, so as to avoid interference; and the contact plate 242 and the outer wall of the socket 22 are in movable cooperation.

[0039] In one embodiment provided in this application, the first fixing plate 121 is further provided with a guide plate 244, the guide plate 244 is provided with an active channel 2441, and the active channel 2441 is in active cooperation with the socket 22.

[0040] The guide plate 244 can be two plate-shaped structures that are distributed at a certain interval, with the middle part being the movable channel 2441; the guide plate 244 can also be a frame-shaped structure with the movable channel 2441 opened on its top.

[0041] In one embodiment provided in this application, the outer wall of the guide plate 244 is provided with a reinforcing plate 245, which cooperates with the abutment plate 242.

[0042] The reinforcing plate 245 can be configured as a spring or other flexible structure that can move relative to the guide plate 244. The reinforcing plate 245 and the guide plate 244 are respectively provided with snap buttons and snap holes, which are engaged with each other.

[0043] Specifically, when installing the socket 22, the contact plate 242 contacts the socket 22, causing the socket 22 to slide into the through hole 1221 along the movable channel 2441. After the elastic element 243 retracts after the external cable is inserted, it provides elasticity to make the contacts in the socket 22 contact the contacts of the external test line. To facilitate the disassembly of the socket 22, the engagement between the guide plate 244 and the reinforcing plate 245 can be canceled, the buckle button can be pulled out, and the contact plate 242 can be pushed to move away from the socket 22, thereby easily completing the disassembly of the socket 22.

[0044] Finally, it should be noted that the methods and apparatus described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways, as long as they do not depart from the scope of this utility model.

Claims

1. An overcurrent relay testing device, characterized in that: include, The mounting assembly (1) includes a housing (11), an opening (111) and an interface hole (112) respectively opened on the outer wall of the housing (11), and an assembly (12) that slides with the opening (111). The connecting component (2) includes a circuit board (21), a socket (22) located outside the circuit board (21), and an adapter (23) located between the circuit board (21) and the socket (22); and, The adapter (23) includes a first conductive part (231) and a second conductive part (232), the first conductive part (231) and the second conductive part (232) are plugged into each other, and the first conductive part (231) is electrically connected to the socket (22), and the second conductive part (232) is electrically connected to the circuit board (21).

2. The overcurrent relay testing device according to claim 1, characterized in that: The assembly (12) includes a first fixing plate (121) movably disposed inside the housing (11), a second fixing plate (122) fixedly connected to the first fixing plate (121), and end caps (123) disposed on the sidewalls of the first fixing plate (121) and the second fixing plate (122).

3. The overcurrent relay calibration device according to claim 2, characterized in that: The end cap (123) abuts against the opening (111), and the outer wall of the end cap (123) is provided with a sealing strip (1231).

4. The overcurrent relay calibration device according to claim 2 or 3, characterized in that: The second fixing plate (122) has a through hole (1221) on its outer wall; when the end cap (123) abuts against the opening (111), the position of the through hole (1221) corresponds one-to-one with the interface hole (112).

5. The overcurrent relay calibration device according to claim 4, characterized in that: The socket (22) is connected and engaged with the through hole (1221).

6. The overcurrent relay testing device according to any one of claims 1 to 3 and 5, characterized in that: The adapter (23) uses a pluggable connector.

7. The overcurrent relay calibration device according to claim 2 or 3, characterized in that: The first fixing plate (121) is provided with an abutment (24), the abutment (24) includes a third fixing plate (241) provided on the first fixing plate (121), an abutment plate (242) is provided on the outside of the third fixing plate (241), and an elastic member (243) is provided between the third fixing plate (241) and the abutment plate (242).

8. The overcurrent relay testing device according to claim 7, characterized in that: The outer wall of the contact plate (242) is provided with a wire groove (2421), and the contact plate (242) is movably engaged with the socket (22).

9. The overcurrent relay testing device according to claim 8, characterized in that: The first fixing plate (121) is also provided with a guide plate (244), the guide plate (244) is provided with a movable channel (2441), and the movable channel (2441) is movablely engaged with the socket (22).

10. The overcurrent relay testing device according to claim 9, characterized in that: The outer wall of the guide plate (244) is provided with a reinforcing plate (245), which cooperates with the abutment plate (242).

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