Electric leakage sensor convenient to overhaul

Abstract

The utility model discloses an electric leakage sensor convenient to maintain, and relates to the technical field of electronic components. The electric leakage sensor comprises a U-shaped clamping plate and two shells, electric leakage sensor bodies are arranged in the two shells, and U-shaped edge strips are arranged on the upper portions of the shells. U-shaped clamping grooves matched with the two U-shaped edge strips are formed in the inner wall of the U-shaped clamping plate, two limiting grooves are formed in each of the two sides of the U-shaped clamping plate, sliding blocks are elastically matched with the two sides of the shell, one ends of the sliding blocks are clamped in the limiting grooves, and shifting plates are arranged on the sides, away from the shell, of the sliding blocks. According to the utility model, the U-shaped clamping plate is matched with the two U-shaped edge strips, so that the relative displacement between the two shells can be conveniently limited by using the U-shaped clamping plate, and the U-shaped clamping plate can be conveniently limited or not limited by using the sliding block through the elastic sliding of the sliding block and the matching of the sliding block and the limiting groove, so that the convenience of the disassembly and assembly between the U-shaped clamping plate and the two shells is improved; the convenience of disassembly and maintenance of the electric leakage sensor is improved, and the sliding block can be pulled conveniently through the shifting plate.

Description

Technical Field

[0001] The utility model belongs to the field of electronic components, and in particular relates to a leakage sensor which is easy to repair. Background Art

[0002] The leakage current sensor is a device that converts the measured AC microcurrent and DC isolation into linear proportional DC current, DC voltage and other standard analog signals or RS485 digital signals based on the electromagnetic isolation and magnetic modulation working principles of the mutual inductor. It is widely used in real-time monitoring of the insulation conditions of the busbars and branches of DC and AC power supply systems.

[0003] A Chinese patent with publication number CN215263953U discloses a leakage sensor, including a shell, an annular iron core is fixedly provided inside the shell, a coil is wound around the outside of the annular iron core, a circuit board is provided inside the shell below the coil, a plurality of wiring terminals extending to the outside of the shell are electrically connected on the circuit board, a protective shell fixed to the shell is provided on the outside of the wiring terminals, and the shell includes a left half shell and a right half shell, which are connected by screws.

[0004] During use of the leakage sensor disclosed in the application, the left half shell and the right half shell are fixed by multiple screws, and the removal and installation process of the screws is relatively cumbersome and time-consuming, which can easily affect the efficiency of disassembling and repairing the leakage sensor. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a leakage sensor which is easy to repair.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A leakage sensor that is easy to repair, comprising a U-shaped cardboard and two shells, wherein the leakage sensor body is arranged in the two shells, and a U-shaped side strip is arranged on the upper part of the shell;

[0008] The inner wall of the U-shaped card plate is provided with a U-shaped groove matched with the two U-shaped side strips, and the two U-shaped side strips are both clamped in the U-shaped groove. Two limiting grooves are provided on both sides of the U-shaped card plate, and the limiting grooves are connected to the U-shaped groove. Slide blocks are elastically matched on both sides of the shell, one end of the slide block is clamped in the limiting groove, and a dial plate is provided on the side of the slide block away from the shell.

[0009] Optionally, mounting seats are provided at the lower part of both sides of the shell, and the mounting seats are located below the U-shaped clamping plate, so that the shell can be easily installed and fixed at a designated position through the mounting seats.

[0010] Optionally, a card slot is provided on one side of one shell, and a card strip matching the card slot is provided on one side of the other shell. The card strip is snapped into the card slot. The card slot and the card strip are located below the leakage sensor body. The card slot and the card strip cooperate to improve the sealing of the lower connection of the two shells.

[0011] Optionally, support blocks are installed on both sides of the shell, a guide rod is provided at one end of the support block, a pressure plate is provided at the end of the guide rod away from the support block, a sliding hole matched with the guide rod is provided on one side of the slider, a groove matched with the pressure plate is provided at one end of the inner wall of the sliding hole, the pressure plate slides in the groove, a spring is provided between the pressure plate and one end of the inner wall of the groove, and the sliding distance of the slider is limited by the cooperation between the pressure plate and the groove.

[0012] Optionally, the leakage sensor body includes an annular iron core and a circuit board located in two shells, the annular iron core is located above the circuit board, and a coil is arranged around the annular iron core. A connecting seat corresponding to the circuit board is arranged on one side of one of the shells, and a slot hole is arranged in the transverse direction of the shell. The slot hole passes through the shell, and a limiting cylinder is arranged on one side of the inner wall of the shell. The limiting cylinder is located around the slot hole, and the limiting cylinder is clamped in the annular iron core. The limiting cylinder is used to facilitate positioning and installation of the annular iron core.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] By cooperating with the two U-shaped side strips, the U-shaped card plate can be used to limit the relative displacement between the two shells. By elastically sliding the slider and cooperating with the limit groove, the slider can be used to limit or cancel the limit, thereby improving the convenience of disassembly and assembly between the U-shaped card plate and the two shells, improving the speed of disassembly and maintenance of the leakage sensor, and the slider can be pulled conveniently by the dial plate.

[0015] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] In the figure:

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0020] Figure 3 The figure is a schematic diagram of a slider structure according to an embodiment of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] Shell 1, slot 101, limiting cylinder 102, U-shaped side strip 103, slot 104, clamping strip 105, mounting seat 106, connecting seat 2, annular core 3, coil 4, circuit board 5, U-shaped clamping plate 6, U-shaped slot 601, limiting slot 602, supporting block 7, guide rod 701, pressure plate 702, slider 8, sliding hole 801, groove 802, dial plate 803, spring 9.

[0023] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0024] The utility model will now be further described in detail with reference to the accompanying drawings.

[0025] See also Figure 1-3 As shown, in this embodiment, a leakage sensor that is easy to repair is provided, including a U-shaped card plate 6, two shells 1, the two shells 1 are provided with a leakage sensor body, and a U-shaped side strip 103 is provided on the upper part of the shell 1;

[0026] The inner wall of the U-shaped card plate 6 is provided with a U-shaped groove 601 adapted to the two U-shaped side strips 103, and the two U-shaped side strips 103 are both clamped in the U-shaped groove 601. Two limiting grooves 602 are provided on both sides of the U-shaped card plate 6, and the limiting grooves 602 are connected to the U-shaped groove 601. Slide blocks 8 are elastically matched on both sides of the shell 1, and one end of the slide block 8 is clamped in the limiting groove 602. A shift plate 803 is provided on the side of the slide block 8 away from the shell 1.

[0027] One aspect of the application of this embodiment is: when it is necessary to disassemble and repair, the dial plate 803 is pushed in the direction away from the U-shaped card plate 6, and the dial plate 803 drives the slider 8 to slide and disengage from the limiting groove 602, thereby canceling the limit of the slider 8 on the U-shaped card plate 6, and then the U-shaped card plate 6 is pulled upward to cancel the limit of the U-shaped card plate 6 on the shell 1. When the dial plate 803 is released, the slider 8 is driven by the elastic force to quickly reset the dial plate 803, and then the two shells 1 can be opened to inspect the leakage sensor body. Similarly, the leakage sensor can be quickly assembled with reference to the above operation.

[0028] In this embodiment, mounting seats 106 are provided at the lower part of both sides of the shell 1. The mounting seats 106 are located below the U-shaped clamping plate 6. The mounting seats 106 are provided with insertion holes in the vertical direction. The insertion holes penetrate the mounting seats 106. The mounting seats 106 are used to facilitate the installation and fixation of the shell 1 at a specified position.

[0029] In this embodiment, a card slot 104 is provided on one side of one of the shells 1, and a card strip 105 adapted to the card slot 104 is provided on one side of the other shell 1. The card strip 105 is snapped into the card slot 104. The card slot 104 and the card strip 105 are located below the leakage sensor body. The card slot 104 can be a U-shaped structure and cooperate with the U-shaped side strip 103. At this time, the card slot 104 is located on the lower side of the U-shaped side strip 103. The card slot 104 and the card strip 105 cooperate to improve the sealing of the lower connection of the two shells 1.

[0030] In this embodiment, support blocks 7 are installed on both sides of the shell 1, and a guide rod 701 is provided at one end of the support block 7. A pressure plate 702 is provided at the end of the guide rod 701 away from the support block 7. A sliding hole 801 adapted to the guide rod 701 is provided on one side of the slider 8. The guide rod 701 passes through the sliding hole 801, and a groove 802 adapted to the pressure plate 702 is provided at one end of the inner wall of the sliding hole 801. The pressure plate 702 is slidably fitted in the groove 802. A spring 9 is provided between the pressure plate 702 and one end of the inner wall of the groove 802. The stability of the slider 8 when sliding is improved by the cooperation between the guide rod 701 and the sliding hole 801. The sliding distance of the slider 8 is limited by the cooperation between the pressure plate 702 and the groove 802, thereby reducing the probability of the slider 8 detaching from the guide rod 701.

[0031] The leakage sensor body of this embodiment includes an annular core 3 and a circuit board 5 located in two housings 1. The annular core 3 is located above the circuit board 5. A coil 4 is arranged around the annular core 3. A connection seat 2 corresponding to the circuit board 5 is arranged on one side of one housing 1. The circuit board 5 is electrically connected to the connection seat 2 and the coil 4. A slot 101 is arranged in the transverse direction of the housing 1. The slot 101 penetrates the housing 1. A limiting cylinder 102 is arranged on one side of the inner wall of the housing 1. The limiting cylinder 102 is located around the slot 101. The limiting cylinder 102 is clamped in the annular core 3. The limiting cylinder 102 facilitates the positioning and installation of the annular core 3.

[0032] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A leakage sensor that is easy to repair, characterized in that: include: A U-shaped card plate (6), two housings (1), wherein the two housings (1) are provided with leakage sensor bodies, and the upper part of the housings (1) is provided with a U-shaped side strip (103); The inner wall of the U-shaped card plate (6) is provided with a U-shaped card slot (601) matched with the two U-shaped side strips (103), and two limiting slots (602) are provided on both sides of the U-shaped card plate (6). Slide blocks (8) are elastically matched on both sides of the shell (1), and one end of the slide block (8) is clamped in the limiting slot (602). A shift plate (803) is provided on the side of the slide block (8) away from the shell (1).

2. The leakage sensor that is easy to repair according to claim 1 is characterized in that: Mounting seats (106) are provided at the lower parts of both sides of the shell (1).

3. The leakage sensor that is easy to repair according to claim 1 is characterized in that: A card slot (104) is provided on one side of one of the housings (1), and a card strip (105) adapted to the card slot (104) is provided on one side of the other housing (1).

4. The leakage sensor that is easy to repair according to claim 1 is characterized in that: Support blocks (7) are installed on both sides of the housing (1), a guide rod (701) is provided at one end of the support block (7), a pressure plate (702) is provided at one end of the guide rod (701), a sliding hole (801) matched with the guide rod (701) is provided at one side of the slider (8), a groove (802) matched with the pressure plate (702) is provided at one end of the inner wall of the sliding hole (801), and a spring (9) is provided between the pressure plate (702) and one end of the inner wall of the groove (802).

5. The leakage sensor that is easy to repair according to claim 1 is characterized in that: The leakage sensor body comprises an annular iron core (3) and a circuit board (5) located in two shells (1); a coil (4) is arranged on the circumference of the annular iron core (3); and a connection seat (2) corresponding to the circuit board (5) is arranged on one side of one of the shells (1).

6. The leakage sensor that is easy to repair according to claim 5 is characterized in that: The housing (1) is provided with a slot hole (101) in the transverse direction, and a limiting cylinder (102) is provided on one side of the inner wall of the housing (1). The limiting cylinder (102) is located on the peripheral side of the slot hole (101), and the limiting cylinder (102) is clamped in the annular iron core (3).

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