Plug-in voltage measuring device

Abstract

The utility model discloses a plug-in voltage measuring device. The plug-in voltage measuring device comprises a housing, a voltage measuring assembly and two plug-in assemblies. The voltage measuring assembly is arranged in the shell, the two plug-in assemblies are arranged on the shell at intervals, each plug-in assembly comprises an electrode piece and a clamping piece, the electrode piece is used for electrically connecting the voltage measuring assembly and the clamping piece, and the clamping piece is used for being in direct insertion connection with an electrode column of an electric power pressing plate and is fixedly clamped with the electrode column of the electric power pressing plate. Through the above arrangement, the problem that the existing voltage measuring device is inconvenient to disassemble and assemble is solved.

Description

Technical Field

[0001] This utility model relates to the field of voltage measuring instrument technology, and in particular to an insertion-type voltage measuring device. Background Technology

[0002] Electrical contact plates are crucial components in substation protection circuits. They are typically installed in the output circuits or protection function circuits of substation protection systems for opening and closing power lines, thus enabling the substation protection system to function. Electrical contact plates are generally installed inside the panel of the protection cabinet, where the wiring is complex and space is limited. Both electrodes of the contact plate need to be connected to the protection line, and voltage measurement on the protection line is not possible. Depending on the type of electrical contact plate, the electrode spacing is typically either 25mm or 35mm.

[0003] Currently, voltage measuring devices used for measuring electrical pressure plates typically use metal springs to electrically connect to the electrode posts of the pressure plate. When the metal spring of the voltage measuring device is engaged with the two electrode posts of the pressure plate, the device needs to first tilt to one side to engage with the first electrode post, and then move towards the second electrode post to engage with it. However, electrical pressure plates are usually arranged in multiple rows, with a large number of wires, resulting in limited space and making the assembly and disassembly of the voltage measuring device quite difficult. Especially for electrode posts with a 35mm spacing, the metal spring is held firmly between the two posts, requiring tools to separate the spring from the posts. This is cumbersome and carries a risk of electric shock during removal. Utility Model Content

[0004] This utility model mainly provides an insertion-type voltage measuring device, which aims to solve the problem that current voltage measuring devices are inconvenient to assemble and disassemble.

[0005] To achieve the above objectives, this utility model proposes an insertion-type voltage measuring device, which includes a housing, a voltage measuring component, and two plug-in components.

[0006] The voltage measuring component is disposed inside the housing, and the two plug-in components are disposed at intervals on the housing. Each plug-in component includes an electrode and a snap-fit ​​component. The electrode is used to electrically connect the voltage measuring component and the snap-fit ​​component, and the snap-fit ​​component is used to directly insert and snap-fit ​​the electrode post of the power pressure plate.

[0007] In some embodiments of this utility model, the snap-fit ​​component includes a fixed base and at least two snap-fit ​​arms disposed on the fixed base. The at least two snap-fit ​​arms are spaced apart in the circumferential direction and surround a slot into which the electrode post of the power pressure plate is inserted. When the electrode post of the power pressure plate is inserted into the slot, it squeezes the at least two snap-fit ​​arms.

[0008] In some embodiments of this utility model, the snap-fit ​​arm is provided with a snap-fit ​​part for snapping the electrode post of the power pressure plate. The snap-fit ​​part has a guide slope, which guides and cooperates with the electrode post of the power pressure plate, so that the electrode post of the power pressure plate is guided and inserted into the slot.

[0009] In some embodiments of this utility model, the plug-in assembly further includes a mounting member, the mounting member having a mounting groove, the snap-fit ​​member being disposed in the mounting groove, the groove wall of the mounting groove also forming a limiting ring groove, the edge of the fixing seat being disposed in the limiting ring groove, and the limiting ring groove being used to limit the snap-fit ​​member within the mounting groove.

[0010] In some embodiments of this utility model, the bottom of the mounting groove is provided with a through hole for the electrode to pass through, the fixing seat is provided with a contact part, and the outer peripheral wall of the electrode is formed with a crimping part, which is used to cooperate with the bottom of the mounting groove to crimp the contact part.

[0011] In some embodiments of this utility model, the housing is provided with two supports for the one-to-one installation of the two plug-in components, and each support is provided with a flat through hole for the electrode to pass through. The electrode can move along the direction defined by the flat through hole to adjust the distance between the two plug-in components.

[0012] In some embodiments of this utility model, the electrode is fixedly connected to the wire bonding terminal of the voltage measuring component by a screw, the screw is fixed to the edge of the flat through hole, so that the crimping part is crimped to the electrical contact part, and the support is provided with an operating hole communicating with the flat through hole.

[0013] In some embodiments of this utility model, the mounting component is provided with a limiting protrusion, the housing is provided with a slot, the limiting protrusion is disposed in the slot, the mounting component abuts against the support, the limiting protrusion can move along the length direction of the slot, and the slot is used to limit the mounting component in the axial direction.

[0014] In some embodiments of this utility model, the fixing base is provided with a first clearance hole, the bottom of the mounting groove is provided with a second clearance hole, and the support is provided with a third clearance hole. The first clearance hole, the second clearance hole and the third clearance hole are connected.

[0015] The housing is provided with a fixed bracket, which is fixedly connected to the cabinet panel on which the power pressure plate is installed by an adhesive component.

[0016] The beneficial effects of this utility model are as follows: Unlike the prior art, the insertion-type voltage measuring device disclosed in this utility model can be directly inserted into the electrode post of the power pressure plate through two plug-in components, and can be clamped and fixed on the electrode post to achieve electrical connection with the power pressure plate. The two plug-in components can be hung on the electrode post at the same time without the need for position adjustment, making it suitable for installation in spaces with limited space. This design not only facilitates installation, but also uses a clamp-type connection to the electrode post, which can be directly pulled out without tools, making it easy to disassemble. This improves the ease of installation and disassembly of the insertion-type voltage measuring device, thereby enhancing the user's convenience and efficiency in installation and disassembly. 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 schematic diagram of the assembly structure of the insertion-type voltage measuring device of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the insertion-type voltage measuring device of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the insertion-type voltage measuring device of this utility model;

[0021] Figure 4 This is an exploded structural diagram of the insertion-type voltage measuring device of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the plug-in assembly of this utility model;

[0023] Figure 6 This is a cross-sectional structural diagram of the plug-in assembly of this utility model.

[0024] Explanation of icon numbers:

[0025] 1. Housing; 11. Support; 111. Flat through hole; 112. Operating hole; 113. Third clearance hole; 12. Housing body; 121. First protrusion; 13. Mounting base; 131. Second protrusion; 14. Slot; 15. Fixing bracket; 151. Adhesive bonding position; 2. Voltage measuring assembly; 21. Connecting plate; 22. Soldering terminal; 3. Plug-in assembly; 31. Electrode; 311. Crimping part; 312. Screw; 32. Snap-fit ​​component; 321. Fixing base; 3211. Power connection part; 3212. First clearance hole; 322. Snap-fit ​​arm; 3221. Holding part; 3222. Guide slope; 323. Slot; 33. Mounting component; 331. Mounting groove; 332. Limiting ring groove; 333. Through hole; 334. Limiting protrusion; 335. Second clearance hole; 4. Power pressure plate; 41. Electrode post; 5. Panel of cabinet; 6. Adhesive component.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] 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 that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] This utility model proposes an insertion-type voltage measuring device, referring to... Figures 1 to 3 The insertion-type voltage measuring device includes a housing 1, a voltage measuring component 2, and two insertion components 3. The voltage measuring component 2 is located inside the housing 1, and the two insertion components 3 are spaced apart on the housing 1. Each insertion component 3 includes an electrode 31 and a snap-fit ​​component 32. The electrode 31 is used to electrically connect the voltage measuring component 2 and the snap-fit ​​component 32, and the snap-fit ​​component 32 is used to directly insert and snap-fit ​​into the electrode post 41 of the power pressure plate 4.

[0031] Based on the above scheme, two plug-in components 3 are directly plugged into the electrode posts 41 of the power pressure plate 4. The snap-fit ​​component 32 can hold and fix the component on the electrode post 41. The snap-fit ​​component 32 is electrically connected to the electrode post 41, thereby realizing the electrical connection between the voltage measuring component 2 and the power pressure plate 4. By directly plugging into the power pressure plate 4, the two plug-in components 3 can be hung on the electrode post 41 at the same time without the need for position adjustment. This is suitable for installation in spaces with limited space. This design not only facilitates installation, but also uses a clamp-type connection to the electrode post 41, which can be directly pulled out without the need for tools, making it easy to disassemble. This greatly improves the ease of installation and disassembly of the plug-in voltage measuring device, thereby enhancing the user's convenience and efficiency.

[0032] The plug-in component 3 can be cylindrical, which avoids sharp edges and facilitates the installation or removal of the plug-in component 3 in a narrow space, making maintenance easier and further improving the ease of installation and removal of the plug-in voltage measuring device.

[0033] The voltage measuring component 2 is provided with a junction plate 21, which is electrically connected to the electrode 31 through a bonding terminal 22. The voltage measuring component 2 is used to measure the voltage of the power plate 4. The voltage measuring component 2 can be a voltage measuring device in the existing related technology, and there is no limitation here.

[0034] Reference Figures 1 to 6 The snap-fit ​​component 32 includes a fixed base 321 and at least two snap-fit ​​arms 322 disposed on the fixed base 321. The at least two snap-fit ​​arms 322 are spaced apart in the circumferential direction and surround a slot 323 into which the electrode post 41 of the power pressure plate 4 is inserted. When the electrode post 41 of the power pressure plate 4 is inserted into the slot 323, it presses the at least two snap-fit ​​arms 322.

[0035] When the insertion-type voltage measuring device is inserted into the electrode post 41 of the power pressure plate 4, the electrode post 41 presses against at least two snap-fit ​​arms 322 and gradually inserts into the slot 323. The at least two snap-fit ​​arms 322 snap the electrode post 41 into place, ensuring the insertion-type voltage measuring device is stably mounted on the power pressure plate 4. The snap-fit ​​component 32 has a simple and reliable structure, effectively ensuring the stability of the insertion-type voltage measuring device mounted on the power pressure plate 4.

[0036] The snap-fit ​​arms 322 facilitate easy installation by allowing the plug-in assembly 3 to be conveniently inserted directly into the electrode post 41. Furthermore, the snap-fit ​​arms 322 connect to the electrode post 41 via a snap-fit ​​mechanism, making disassembly easy; the plug-in voltage measuring device can be directly removed from the power pressure plate 4. The snap-fit ​​arms 322 possess good elasticity, ensuring that at least two snap-fit ​​arms 322 firmly hold the electrode post 41 during insertion, achieving a fixed installation.

[0037] At least two locking arms 322 can be arranged in a tapered shape, which helps to increase the clamping force and enhance the clamping strength of the electrode post 41. The number of locking arms 322 can be three or more. In this embodiment, the number of locking arms 322 includes three, which are spaced apart in the circumferential direction. This not only enhances the clamping strength of the electrode post 41 during insertion but also improves the connection stability and reliability.

[0038] The latching arm 322 is provided with a latching part 3221 for latching the electrode post 41 of the power pressure plate 4. The latching part 3221 has a guide slope 3222, which guides and engages with the electrode post 41 of the power pressure plate 4, so that the electrode post 41 of the power pressure plate 4 is guided and inserted into the slot 323. With this configuration, when the plug-in assembly 3 is plugged into the electrode post 41, the latching member 32 latches the electrode post 41 through the latching part, so that the latching member 32 can stably hold the electrode post 41, ensuring the connection stability between the plug-in assembly 3 and the electrode post 41. Moreover, through the guide slope 3222, when the electrode post 41 contacts the latching member 32, it can provide guidance for the latching member 32, which facilitates the insertion of the electrode post 41 into the slot 323. This helps to improve the convenience of installing the plug-in voltage measuring device, enhance the user's operating experience and installation efficiency.

[0039] Reference Figures 1 to 6 The plug-in assembly 3 also includes a mounting member 33, which has a mounting groove 331. The snap-fit ​​member 32 is located in the mounting groove 331. The groove wall of the mounting groove 331 also forms a limiting ring groove 332. The edge of the fixing seat 321 is located in the limiting ring groove 332. The limiting ring groove 332 is used to limit the snap-fit ​​member 32 in the mounting groove 331.

[0040] Mounting component 33 provides mounting for the snap-fit ​​component 32 and the electrode component 31, allowing them to be stably mounted on the housing 1, ensuring that the insertion-type voltage measuring assembly 2 is stably mounted on the power pressure plate 4. The bottom of the mounting groove 331 provides support for the snap-fit ​​component 32, ensuring that the snap-fit ​​component 3 is stably attached to the electrode post 41 when inserted. The limiting ring groove 332 limits the snap-fit ​​component 32, making it easier to remove the insertion-type voltage measuring device, thus improving the ease of assembly and disassembly of the device.

[0041] The mounting groove 331 has a through hole 333 at its bottom for the electrode 31 to pass through. The fixing base 321 has a contact part 3211, and the outer peripheral wall of the electrode 31 has a crimping part 311. The crimping part 311 is used to mate with the bottom of the mounting groove 331 to crimp the contact part 3211. With this arrangement, the electrode 31 and the snap-fit ​​part 32 are electrically connected within the mounting groove 331. This not only improves the structural compactness of the plug-in assembly 3, but also facilitates the assembly of the plug-in assembly 3.

[0042] Reference Figures 1 to 6 The housing 1 is provided with two supports 11 for mounting two plug-in components 3 in a one-to-one correspondence. Each support 11 is provided with a flat through hole 111 through which an electrode 31 passes. The electrode 31 can move along the direction defined by the flat through hole 111 to adjust the distance between the two plug-in components 3. Through the flat through hole 111, the electrode 31 can move within a certain range, thus adjusting the distance between the two plug-in components 3 to adapt to different types of power pressure plates 4.

[0043] For example, when the electrode 31 moves to one end where the two flat through holes 111 are close to each other, that is, when the two plug-in components 3 are close to each other, the distance between the two plug-in components 3 is 25mm, so as to adapt to the power pressure plate 4 with the electrode posts 41 having a distance of 25mm; when the electrode 31 moves to one end where the two flat through holes 111 are far apart, that is, when the two plug-in components 3 are far apart, the distance between the two plug-in components 3 is 35mm, so as to adapt to the power pressure plate 4 with the electrode posts 41 having a distance of 35mm.

[0044] Electrode 31 is fixedly connected to the bonding terminal 22 of voltage measuring assembly 2 by screw 312. Screw 312 is fixed to the edge of flat through hole 111, so that crimping part 311 is crimped to electrical contact part 3211. Support 11 is provided with operating hole 112 communicating with flat through hole 111. One end of electrode 31 is fixed to support 11 by screw 312, and crimping part 311 abuts against electrical contact part 3211 and mounting part 33 to fix the plug-in to support 11. This provides a stable guarantee when plugging and hanging with electrode post 41 of power pressure plate 4, ensuring the reliability of installation.

[0045] Loosening screw 312 adjusts the position of electrode 31, and tightening screw 312 again moves electrode 31 into place, thereby adjusting the distance between the two plug-in components 3. The adjustment method is simple, convenient, efficient, and reliable. The operating hole 112 provides user convenience when loosening or tightening screw 312, allowing the screw to be turned without disassembling the housing 1, greatly facilitating the adjustment of the position of electrode 31.

[0046] The housing 1 includes a housing body 12 and a mounting base 13. The mounting base 13 is fixedly connected to the housing body 12 by screws 312. The housing body 12 and the mounting base 13 provide mounting for the voltage measuring component 2. The housing body 12 has two spaced-apart first protrusions 121, and the mounting base 13 has two spaced-apart second protrusions 131. The two first protrusions 121 and the two second protrusions 131 are spliced ​​together in a one-to-one correspondence to form each support 11. An operating hole 112 is formed on the first protrusion 121, and a flat through hole 111 is formed on the second protrusion 131. The edge of the operating hole 112 near the screw 312 is recessed, thus providing clearance space for the screw 312 and facilitating the installation and movement of the screw 312.

[0047] Mounting member 33 is provided with a limiting protrusion 334, and housing 1 is provided with a groove 14. The limiting protrusion 334 is disposed in the groove 14. Mounting member 33 abuts against support 11. The limiting protrusion 334 can move along the length direction of groove 14. Groove 14 is used to limit mounting member 33 in the axial direction. Mounting member 33 abuts against the surface of housing 1, and housing 1 supports mounting member 33. Through groove 14 and limiting protrusion 334, mounting member 33 can be stably and reliably mounted on housing 1.

[0048] When the mounting piece 33 is inserted into the electrode post 41 of the power pressure plate 4, the support 11 provides support for the mounting piece 33, so that the mounting piece 33 and the snap-fit ​​piece 32 can be stably inserted into the electrode post 41 of the power pressure plate 4; when it is pulled out from the electrode post 41 of the power pressure plate 4, the mounting piece 33 and the snap-fit ​​piece 32 can be stably disengaged from the electrode post 41 of the power pressure plate 4 through the limiting cooperation of the slot 14 and the limiting protrusion 334, thereby improving the reliability of disassembly.

[0049] Reference Figures 1 to 6The mounting base 321 has a first clearance hole 3212, the bottom of the mounting groove 331 has a second clearance hole 335, and the support 11 has a third clearance hole 113. The first clearance hole 3212, the second clearance hole 335, and the third clearance hole 113 are connected. With this configuration, when the plug-in assembly 3 is installed on the electrode post 41 of the power pressure plate 4, the first clearance hole 3212, the second clearance hole 335, and the third clearance hole 113 can avoid connectors or wires on the electrode post 41, thus facilitating the installation of the plug-in voltage measuring device and improving its applicability and application scenarios.

[0050] The housing 1 is provided with a fixing bracket 15, which is fixedly connected to the panel 5 of the cabinet on which the power pressure plate 4 is installed via an adhesive piece 6. The fixing bracket 15 has an adhesive position, and the adhesive piece 6 is located on the adhesive position 151. When the plug-in assembly 3 is plugged into the electrode post 41 of the power pressure plate 4, the adhesive piece 6 is adhered to the panel 5 of the cabinet to fix the plug-in voltage measuring device. The fixing method is simple and effective, and it is also easy to disassemble.

[0051] The adhesive component 6 can be double-sided tape or other adhesive materials, which are not limited here.

[0052] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An insertion-type voltage measuring device for connecting to a power pressure plate and measuring the voltage of the power pressure plate, characterized in that, The insertion-type voltage measuring device includes a housing, a voltage measuring component, and two plug-in components; The voltage measuring component is disposed inside the housing, and the two plug-in components are disposed at intervals on the housing. Each plug-in component includes an electrode and a snap-fit ​​component. The electrode is used to electrically connect the voltage measuring component and the snap-fit ​​component, and the snap-fit ​​component is used to directly insert and snap-fit ​​the electrode post of the power pressure plate.

2. The insertion-type voltage measuring device as described in claim 1, characterized in that, The snap-fit ​​component includes a base and at least two snap-fit ​​arms disposed on the base. The at least two snap-fit ​​arms are spaced apart in the circumferential direction and surround a slot into which the electrode post of the power pressure plate is inserted. When the electrode post of the power pressure plate is inserted into the slot, it presses against the at least two snap-fit ​​arms.

3. The insertion-type voltage measuring device as described in claim 2, characterized in that, The latching arm is provided with a latching part for holding the electrode post of the power pressure plate. The latching part has a guide slope, which guides and cooperates with the electrode post of the power pressure plate, so that the electrode post of the power pressure plate is guided and inserted into the slot.

4. The insertion-type voltage measuring device as described in claim 2, characterized in that, The plug-in assembly also includes a mounting member, which has a mounting groove. The snap-fit ​​member is disposed in the mounting groove, and the groove wall of the mounting groove also forms a limiting ring groove. The edge of the fixing seat is disposed in the limiting ring groove, and the limiting ring groove is used to limit the snap-fit ​​member in the mounting groove.

5. The insertion-type voltage measuring device as described in claim 4, characterized in that, The bottom of the mounting groove is provided with a through hole for the electrode to pass through, the fixing base is provided with a contact part, and the outer peripheral wall of the electrode is formed with a crimping part, which is used to press the contact part against the bottom of the mounting groove.

6. The insertion-type voltage measuring device as described in claim 5, characterized in that, The housing is provided with two supports for mounting the two plug-in components one to one. Each support is provided with a flat through hole for the electrode to pass through. The electrode can move along the direction defined by the flat through hole to adjust the distance between the two plug-in components.

7. The insertion-type voltage measuring device as described in claim 6, characterized in that, The electrode is fixedly connected to the wire bonding terminal of the voltage measuring component by screws. The screws are fixed to the edge of the flat through hole, so that the crimping part is crimped to the electrical contact part. The support is provided with an operating hole that communicates with the flat through hole.

8. The insertion-type voltage measuring device as described in claim 6, characterized in that, The mounting component is provided with a limiting protrusion, and the housing is provided with a slot. The limiting protrusion is located in the slot. The mounting component abuts against the support. The limiting protrusion can move along the length direction of the slot. The slot is used to limit the mounting component in the axial direction.

9. The insertion-type voltage measuring device as described in claim 6, characterized in that, The fixed base is provided with a first clearance hole, the bottom of the mounting groove is provided with a second clearance hole, and the support is provided with a third clearance hole. The first clearance hole, the second clearance hole and the third clearance hole are connected.

10. The insertion-type voltage measuring device as described in claim 1, characterized in that, The housing is provided with a fixed bracket, which is fixedly connected to the cabinet panel on which the power pressure plate is installed by an adhesive component.

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