Three-phase power distribution detector

Abstract

The utility model relates to the technical field of power equipment, in particular to a three-phase power distribution detector, which comprises a bottom box and an upper box, a work piece is clamped on the bottom box through a mounting assembly, a fastener penetrates through the bottom box and is connected with the upper box, knock-off blocks are arranged on both the bottom box and the upper box, and the knock-off blocks are connected with the work piece through bolts. The mounting assembly comprises two supporting arms which are symmetrically arranged, and a working piece is clamped on the supporting arms; the supporting arm is used for installing a workpiece, operation is convenient, assembling is rapid, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a three-phase power distribution detector. Background Art

[0002] The existing power distribution monitors are relatively complex in the design and use of components, inconvenient to install and use, and difficult to assemble. They are costly, require a lot of materials, have a long lead time, and lack competitiveness.

[0003] A guide rail type three-phase prepaid energy meter with application number CN201310447395.5 discloses a device including an upper shell assembly, a circuit board, a terminal assembly, a mutual inductor and a lower shell assembly. The upper shell assembly and the lower shell assembly are connected to form a hollow shell. The circuit board, the terminal assembly and the mutual inductor are all arranged in the hollow shell. The terminal assembly is respectively connected to the circuit board and the mutual inductor. The terminal assembly includes a terminal seat, a terminal seat baffle, a manganese copper sheet and a terminal post. The terminal seat is connected to the mutual inductor through the terminal seat baffle. One end of the manganese copper sheet is connected to the mutual inductor, and the other end is connected to the terminal seat through the terminal post. The upper shell assembly includes a prepaid card insertion port. The disclosed structure is relatively troublesome during assembly, and the installation process is not smooth and cannot be reliably fastened. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the three-phase power distribution detector in the prior art has a complex structure, high cost, and is difficult to assemble, resulting in an unsmooth assembly.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] First, a three-phase power distribution detector is provided, including a base box and an upper box. A working piece is clamped on the base box through an installation component. Fasteners are provided on the base box to connect with the upper box. Knock-off blocks are provided on both the base box and the upper box. The installation component includes two symmetrically arranged support arms, and a working piece is clamped on the support arms.

[0007] Furthermore, a card slot is provided on the support arm at a position corresponding to the working piece; the working piece is fixed by using the card slot to ensure normal use of the device.

[0008] Furthermore, the fasteners include screws, screw holes are provided on the bottom box, and screws are provided in the screw holes; the bottom box and the upper box are fixed with the screws to ensure the stability of the overall structure.

[0009] Furthermore, a stud is provided at a position of the upper box corresponding to the screw hole, and the screw passes through the working piece and is connected to the stud; the working piece is pressed by the stud, so that the working piece is installed more stably.

[0010] Furthermore, a lead seal block and / or a blocking piece is provided on the outside of the screw hole; the lead seal block and the blocking piece are used to block the screw hole, thereby achieving a certain anti-theft effect.

[0011] Furthermore, the base box is provided with evenly distributed positioning posts, and the working piece is provided with positioning holes at positions corresponding to the positioning posts; the positioning posts and the positioning holes will perform preliminary positioning on the workpiece, facilitating subsequent installation and improving work efficiency.

[0012] Furthermore, the sides of the support arms are provided with limiting ribs, and the upper box is provided with a plurality of adaptive limiting blocks at positions corresponding to the limiting ribs; the limiting ribs and the limiting blocks cooperate to limit the support arms, ensuring that the support arms clamp the workpieces and improving the stability of the device.

[0013] Furthermore, a pressing block is provided on the upper box at a position corresponding to the working piece; the pressing block presses the working piece to prevent it from falling out.

[0014] Furthermore, the contact end surfaces of the bottom box and the upper box are provided with positioning ribs, and the upper box is provided with positioning grooves at positions corresponding to the positioning ribs; the positioning ribs and the positioning grooves can ensure accurate positioning of the upper box when it is installed on the bottom box, and can also play the role of preventing deformation and limiting.

[0015] Furthermore, the workpiece includes a lower printed circuit board, a middle printed circuit board and an upper printed circuit board.

[0016] The utility model has the following beneficial effects: the utility model utilizes the support arm to install the printed circuit board on the bottom box, which is simple to operate, convenient to install, and effectively improves work efficiency; at the same time, the provision of the lead seal block and the sealing piece also plays a certain anti-theft function; at the same time, the upper box and the bottom box are connected by screws while the working parts can be fixed, which greatly improves the stability of the device, and also makes the assembly effect better and the work efficiency significantly improved; at the same time, the installation of this device has other structures to limit and fix each installation component, ensuring the accurate installation position of each component during the assembly process and ensuring the assembly quality. 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 the first exploded view of this embodiment;

[0019] Figure 2This is a second exploded view of this embodiment;

[0020] Figure 3 Schematic diagram of the three-dimensional structure of this embodiment. DETAILED DESCRIPTION

[0021] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0022] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, the terms "first," "second," and so on, used in this utility model 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 such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0024] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0025] The utility model provides a three-phase power distribution detector, such as Figure 1 and Figure 2 As shown, it includes a bottom box 10 and an upper box 20 assembled together, wherein a lower printed circuit board 11 is installed on the bottom box 10, and symmetrically distributed support arms 12 are provided on the bottom box 10. A middle printed circuit board 13 and an upper printed circuit board 14 are installed in sequence along the extension direction of the support arms 12. The support arms 12 are provided with card slots 30 at positions corresponding to the middle printed circuit board 13 and the upper printed circuit board 14. The middle printed circuit board 13 and the upper printed circuit board 14 are snapped into the card slots 30 to achieve connection with the bottom box 10.

[0026] A screw hole 31 is provided on the bottom box 10, and a screw 32 is provided in the screw hole 31. The screw 32 passes through the lower printed circuit board 11 and is connected to the upper box 20. The screw 32 fixes the bottom box 10 and the upper box 20, and also fixes the lower printed circuit board 11 between the bottom box 10 and the upper box 20.

[0027] The entire main installation process only requires placing the lower printed circuit board 11 on the bottom box 10, then inserting the middle printed circuit board 13 and the upper printed circuit board 14 into the slot 30, and then tightening the screws 32 to complete the assembly. The operation is simple, the assembly is convenient, and the efficiency is high.

[0028] In order to ensure that the installation of the lower printed circuit board 11 is more stable, a stud 33 is provided at the position of the upper box 20 corresponding to the screw 32. When the screw 32 is turned, it is connected with the stud 33. At the same time, when the upper box 20 is installed on the bottom box 10, the stud 33 also presses the lower printed circuit board 11 against the bottom box 10, thereby fixing the lower printed circuit board 11 and improving the stability of the device.

[0029] Since the support arm 12 is a longer structure, when the middle printed circuit board 13 and the upper printed circuit board 14 are installed on the support arm 12, in order to prevent the support arm 12 from shaking, several parallel limiting ribs 34 are provided on the opposite sides of the two support arms 12, and several limiting blocks 35 are provided on the inner side of the upper box 20 corresponding to the position of the limiting ribs 34. After the upper box 20 is installed on the bottom box 10, the limiting blocks 35 are in contact with the limiting ribs 34, which can prevent the support plate 12 from swinging back and forth. At the same time, the inner side of the upper box 20 also has a wrapping and limiting effect facing the support arm 12, preventing the two support arms 12 from being stretched apart from each other, thereby effectively fixing the support arm 12, and then the middle printed circuit board 13 and the upper printed circuit board 14 are stably installed on the bottom box 10.

[0030] At the same time, a pressing block 36 is provided at the position of the upper box 20 corresponding to the middle printed circuit board 13. After the upper box 20 is installed on the bottom box 10, the pressing block 36 is pressed tightly on the middle printed circuit board 13 to prevent it from falling out.

[0031] At the same time, during the installation process, in order to ensure that the lower printed circuit board 11 is placed on the base box 10 in an accurate position, a number of evenly distributed positioning posts 37 are provided on the base box 10, and positioning holes 38 are opened at the positions corresponding to the positioning posts 37 on the lower printed circuit board 11. When the lower printed circuit board 11 is placed on the base box 10, the positioning posts 37 and the positioning holes 38 cooperate to position and fix the lower printed circuit board 11, ensuring that the position of the lower printed circuit board 11 can be accurately installed when the screws 32 are subsequently tightened.

[0032] During the assembly process of this device, the electrical components are first installed on the upper, middle and lower printed circuit boards, and then the lower printed circuit board 11 is placed on the lower base box 10 using the positioning columns 37 and positioning holes 38. Then, the middle printed circuit board 13 and the upper printed circuit board 14 are snapped into the corresponding slots 30 on the support arm 12. Then, the upper box 20 is installed on the bottom box 10. At this time, the studs 33 press and fix the lower printed circuit board 11, and the pressing block 36 also presses the middle printed circuit board 13. At the same time, the limit blocks 35 and the limit ribs 34 fix the support arm 12. Finally, the screws 32 are tightened to connect the bottom box 10 and the upper box 20, thereby assembling the entire structure.

[0033] In order to ensure that when the upper box 20 is installed on the bottom box 10, the position can be guaranteed to be more accurate and the installation is convenient, the end surface of the bottom box 10 and the upper box 20 that are in contact are provided with positioning ribs 15, and the upper box 20 is provided with positioning grooves 16 at the position corresponding to the positioning ribs 15. The positioning ribs 15 and the positioning grooves 16 are used to enable the bottom box 10 and the upper box 20 to be accurately installed together, and at the same time, they can have certain guiding, positioning and anti-deformation functions.

[0034] At the same time, in order to achieve an anti-theft effect, a lead seal block 40 and / or a blocking piece 41 is provided on the outer side of the screw hole 31. Since different electrical components are installed on the lower printed circuit board 11, gaps of different sizes need to be opened between the upper box 20 and the bottom box 10. In order to facilitate mass production, several knock-out blocks 42 are provided on the bottom box 10 and the upper box 20. The corresponding knock-out blocks are cut off or retained according to the actual situation to ensure that they are adapted to the lower printed circuit board 11 installed with different numbers of electrical components. It is flexible to use, greatly reduces the production cost, and has excellent control over the preparation of parts and other related work.

[0035] A transparent mirror 43 is ultrasonically welded on the upper box 20, and the transparent mirror 43 is covered with a panel 44. In order to prevent the transparent mirror 43 from being installed misplaced, an anti-misalignment block 45 is provided between the transparent mirror 43 and the upper box 20 to ensure that the transparent mirror 43 is installed in an accurate position and to have a certain positioning effect on the transparent mirror 43.

[0036] It should be understood that the above description of the specific embodiments of the present invention is merely for the purpose of illustrating the technical approach and features of the present invention. Its purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. However, the present invention is not limited to the above-described specific embodiments. Any changes or modifications made within the scope of the claims of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A three-phase power distribution detector, characterized in that: The invention comprises a bottom box (10) and an upper box (20), wherein a working piece is clamped on the bottom box (10) through an installation component, a fastener is provided on the bottom box (10) to be connected with the upper box (20), and a knock-off block (42) is provided on both the bottom box (10) and the upper box (20), and the installation component comprises two symmetrically arranged support arms (12), and the working piece is clamped on the support arms (12).

2. A three-phase power distribution detector according to claim 1, characterized in that: A clamping slot (30) is provided on the support arm (12) at a position corresponding to the working piece.

3. A three-phase power distribution detector according to claim 1, characterized in that: The fastener comprises a screw (32), a screw hole (31) is provided on the bottom box (10), and a screw (32) is arranged in the screw hole (31).

4. A three-phase power distribution detector according to claim 3, characterized in that: A stud (33) is provided at a position of the upper box (20) corresponding to the screw hole (31), and the screw (32) passes through the working piece and is connected to the stud (33).

5. A three-phase power distribution detector according to claim 3, characterized in that: A lead sealing block (40) and / or a sealing piece (41) is provided on the outside of the screw hole (31).

6. A three-phase power distribution detector according to claim 1, characterized in that: The bottom box (10) is provided with uniformly distributed positioning posts (37), and the working piece is provided with positioning holes (38) at positions corresponding to the positioning posts (37).

7. A three-phase power distribution detector according to claim 1, characterized in that: The side surfaces of the support arms (12) are each provided with limiting ribs (34), and the upper box (20) is provided with a plurality of adapted limiting blocks (35) at positions corresponding to the limiting ribs (34).

8. A three-phase power distribution detector according to claim 1, characterized in that: A pressing block (36) is provided on the upper box (20) at a position corresponding to the working piece.

9. The three-phase power distribution detector according to claim 1, characterized in that: The contact end surfaces of the bottom box (10) and the upper box (20) are provided with positioning ribs (15), and the upper box (20) is provided with positioning grooves (16) at positions corresponding to the positioning ribs (15).

10. The three-phase power distribution detector according to claim 1, characterized in that: The working piece comprises a lower printed board (11), a middle printed board (13) and an upper printed board (14).

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