An unbalanced current indicating device for an electrical power distribution unit
By using mounting components in the power distribution unit, including structures such as mounting plates, sliding grooves, and limit grooves, the current indicator is fixed by sliding and threaded connections, solving the problem of easy damage to the current indicator in the control box and achieving a stable fixing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN MINGLIAN TECHNOLOGY CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-06-23
AI Technical Summary
The unbalanced current indicator in the existing power distribution unit is easily damaged when the control box is subjected to external impact, causing the device to move and be damaged inside.
The device employs an installation assembly, including a mounting plate, sliding groove, limit groove, connecting block, insert rod, spring, and locking block. The current indicator is fixed to the mounting plate through sliding and threaded connections, and the cooperation of the spring and locking block prevents the device from moving.
It effectively prevents the current indicator from being damaged by external impacts inside the control box, ensuring that the device is securely placed inside the control box and is not easily damaged.
Smart Images

Figure CN224399484U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power distribution unit technology, specifically an unbalanced current indicator device for power distribution units. Background Technology
[0002] A current indicator is used to display the magnitude of the current during charging. Current is the speed at which electrons flow during charging, and its unit is ampere. Current indicators can detect imbalances in power distribution units.
[0003] In the prior art, such as the current indicator proposed in patent application number "CN200820145397.3", a housing, a current detection circuit and an indicator circuit are included, as well as a display driving circuit. The current detection circuit, the display driving circuit and the indicator circuit are electrically connected in sequence and are disposed in the housing, and the indicator circuit is exposed on the surface of the housing. The indicator circuit uses a light-emitting diode and a liquid crystal display. The output terminal of the display driving circuit is connected to the light-emitting diode and the liquid crystal display respectively. The housing is disposed in the control box in a panel mounting manner.
[0004] However, in the aforementioned patent, the unbalanced current indicator for the power distribution unit is mounted on a guide rail. The guide rail is installed inside the control box. When the control box is impacted by an external force, the current indicator moves inside the control box and is easily damaged by impacting the inside of the control box. Utility Model Content
[0005] The purpose of this invention is to provide an unbalanced current indicator for a power distribution unit to solve the problems mentioned in the background art.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] An unbalanced current indicating device for a power distribution unit includes a current indicator and a mounting assembly, the mounting assembly including a mounting plate disposed on one side of the current indicator;
[0008] A sliding groove is provided on one side of the mounting plate, and a trapezoidal sliding block is fixedly provided on one side of the current indicator. The sliding block is slidably disposed inside the sliding groove. A limit groove is provided at the lower end of the mounting plate, and a limit block is fixedly provided on one side of the current indicator. The upper end of the limit block is slidably disposed inside the limit groove.
[0009] Preferably, a connecting block is fixedly provided on one side of the current indicator, a protrusion is fixedly provided on the lower surface of the connecting block, and a groove is provided at the upper end of the mounting plate, with the protrusion slidably disposed inside the groove.
[0010] Preferably, the connecting block has an internal threaded insertion rod, and the lower end of the insertion rod is threaded inside the mounting plate.
[0011] Preferably, a rectangular hidden groove is formed on the lower surface of the mounting plate, and a spring is fixedly installed on the inner side of the hidden groove.
[0012] Preferably, the lower end of the spring is fixedly provided with an inverted U-shaped block, which is slidably disposed inside the hidden groove and on the outer surface of the limiting block.
[0013] Preferably, one side of the mounting plate is provided with two pairs of mounting bolts, and one side of the mounting plate is fixedly provided with several anti-slip strips.
[0014] The beneficial effects of this utility model are:
[0015] This invention slides the current indicator on one side of the mounting plate. Through the cooperation of a spring and a locking block, the locking block is locked onto the outer surface of the limiting block. The insertion rod is threaded into the connecting block and the interior of the mounting plate, fixing the current indicator to one side of the mounting plate and inside the control box to prevent damage to the current indicator. Attached Figure Description
[0016] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the insert rod and mounting bolt structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the connecting block and protrusion structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the spring and locking block structure of this utility model.
[0021] The attached figures are labeled as follows:
[0022] 1. Current indicator; 2. Mounting plate; 3. Sliding groove; 4. Sliding block; 5. Limiting groove; 6. Limiting block; 7. Connecting block; 8. Protrusion; 9. Groove; 10. Insert rod; 11. Hidden groove; 12. Spring; 13. Locking block; 14. Mounting bolt. Detailed Implementation
[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] An unbalanced current indicating device for a power distribution unit includes a current indicator 1 and a mounting assembly, the mounting assembly including a mounting plate 2 disposed on one side of the current indicator 1.
[0025] A sliding groove 3 is provided on one side of the mounting plate 2, and a trapezoidal sliding block 4 is fixedly provided on one side of the current indicator 1. The sliding block 4 is slidably disposed inside the sliding groove 3. A limit groove 5 is provided at the lower end of the mounting plate 2, and a limit block 6 is fixedly provided on one side of the current indicator 1. The upper end of the limit block 6 is slidably disposed inside the limit groove 5.
[0026] like Figure 1 , Figure 3 and Figure 4 The current indicator 1 can detect the imbalance of the power distribution unit. The current indicator 1 is slidably inserted into the inner side of the mounting plate 2, so that the sliding block 4 slides in the inner side of the sliding groove 3, and the upper end of the limiting block 6 slides in the inner side of the limiting groove 5, so that the current indicator 1 is set on one side of the mounting plate 2.
[0027] A connecting block 7 is fixedly installed on one side of the current indicator 1, and a protrusion 8 is fixedly installed on the lower surface of the connecting block 7. A groove 9 is opened at the upper end of the mounting plate 2, and the protrusion 8 is slidably installed inside the groove 9.
[0028] like Figure 1 , Figure 3 and Figure 4 When the connecting block 7 slides on the upper surface of the mounting plate 2, the protrusion 8 slides inside the groove 9, controlling the position between the current indicator 1 and the mounting plate 2.
[0029] The connecting block 7 has an internal thread for inserting rod 10, and the lower end of inserting rod 10 is threaded inside the mounting plate 2.
[0030] like Figure 1 and Figure 3 Insert the plug rod 10 into the interior of the connecting block 7 and the mounting plate 2, and fix the current indicator 1 to one side of the mounting plate 2.
[0031] A rectangular hidden groove 11 is provided on the lower surface of the mounting plate 2, and a spring 12 is fixedly installed on the inner side of the hidden groove 11.
[0032] like Figure 1and Figure 4 The hidden groove 11 is made on the lower surface of the mounting plate 2, and the spring 12 is fixed inside the hidden groove 11.
[0033] A U-shaped locking block 13 is fixedly provided at the lower end of the spring 12. The locking block 13 is slidably disposed inside the hidden groove 11 and on the outer surface of the limiting block 6.
[0034] like Figure 3 and Figure 4 The locking block 13 slides inside the hidden groove 11, and the locking block 13 is locked onto the outer surface of the limiting block 6 by the cooperation of the spring 12 and the locking block 13.
[0035] The mounting plate 2 has two pairs of mounting bolts 14 threaded on one side, and several anti-slip strips are fixedly installed on one side of the mounting plate 2.
[0036] like Figure 2 The mounting plate 2 is fixed in position by two pairs of mounting bolts 14, and the anti-slip effect of the mounting plate 2 is increased by anti-slip strips.
[0037] The working principle of the unbalanced current indicator device for power distribution units provided by this utility model is as follows:
[0038] The mounting plate 2 is fixed in position by two pairs of mounting bolts 14. The current indicator 1 is slid on one side of the mounting plate 2, so that the sliding block 4 slides inside the sliding groove 3, the limiting block 6 slides inside the limiting groove 5, and the protrusion 8 slides inside the groove 9, controlling the position between the current indicator 1 and the mounting plate 2. The locking block 13 is slid into the inside of the hidden groove 11. When the locking block 13 is moved above the limiting block 6, the locking block 13 is locked on the outer surface of the limiting block 6 by the spring 12, locking the position of the current indicator 1. The insertion rod 10 is threaded into the inside of the connecting block 7 and the mounting plate 2, fixing the current indicator 1 to one side of the mounting plate 2.
[0039] Compared with related technologies, the unbalanced current indicating device for power distribution units provided by this utility model has the following advantages:
[0040] The installation assembly of this utility model includes an installation plate 2 and a sliding groove 3. The current indicator 1 is slid on one side of the installation plate 2. The locking block 13 is locked onto the outer surface of the limiting block 6 by the cooperation of the spring 12 and the locking block 13. The insertion rod 10 is threaded into the connecting block 7 and the interior of the installation plate 2 to fix the current indicator 1 on one side of the installation plate 2 and to fix the current indicator 1 inside the control box to prevent damage to the current indicator 1.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An unbalanced current indicating device for a power distribution unit, comprising a current indicator (1) and a mounting assembly, characterized in that, The mounting assembly includes a mounting plate (2), which is disposed on one side of the current indicator (1); A sliding groove (3) is provided on one side of the mounting plate (2), and a trapezoidal sliding block (4) is fixedly provided on one side of the current indicator (1). The sliding block (4) is slidably disposed inside the sliding groove (3). A limiting groove (5) is provided at the lower end of the mounting plate (2), and a limiting block (6) is fixedly provided on one side of the current indicator (1). The upper end of the limiting block (6) is slidably disposed inside the limiting groove (5).
2. The unbalanced current indicating device for a power distribution unit according to claim 1, characterized in that, A connecting block (7) is fixedly provided on one side of the current indicator (1), and a protrusion (8) is fixedly provided on the lower surface of the connecting block (7). A groove (9) is provided at the upper end of the mounting plate (2), and the protrusion (8) is slidably provided inside the groove (9).
3. An unbalanced current indicating device for a power distribution unit according to claim 2, characterized in that, The connecting block (7) has an internal threaded insertion rod (10), and the lower end of the insertion rod (10) is threaded inside the mounting plate (2).
4. An unbalanced current indicating device for a power distribution unit according to claim 1, characterized in that, The mounting plate (2) has a rectangular hidden groove (11) on its lower surface, and a spring (12) is fixedly installed on the inner side of the hidden groove (11).
5. An unbalanced current indicating device for a power distribution unit according to claim 4, characterized in that, The lower end of the spring (12) is fixedly provided with an inverted U-shaped block (13), which is slidably disposed inside the hidden groove (11) and slidably disposed on the outer surface of the limiting block (6).
6. An unbalanced current indicating device for a power distribution unit according to claim 1, characterized in that, The mounting plate (2) has two pairs of mounting bolts (14) threaded on one side, and several anti-slip strips are fixedly installed on one side of the mounting plate (2).