Middle-low-voltage large-current wire holder structure of motor

Abstract

The utility model provides a low-voltage large-current wire holder structure in a motor. The low-voltage large-current wire holder structure comprises a junction box, wherein the junction box is a hollow cavity formed by peripheral side walls; the conductive module comprises a first horizontal conductive plate, a second horizontal conductive plate and a vertical conductive plate, and one end of the first horizontal conductive plate is flush with one end of the second horizontal conductive plate; the wiring modules are arranged on the left side and the right side of the first horizontal conductive plate and in the direction of the flush end of the second horizontal conductive plate and the first horizontal conductive plate. According to the low-voltage large-current motor junction box, the junction box, the conductive modules and the wiring modules are adopted, and the purpose of the technical scheme is to reform and upgrade a wiring seat in the low-voltage large-current motor junction box; the structure mode that the power supply wire pressing vertical plate, the controller wire pressing transverse plate and the first horizontal conductive plate are located on the second horizontal conductive plate to press and install the wiring end is selected, larger current can be borne, the damage or aging phenomenon caused by overload of the screw rod is avoided, the part replacement cost of clients is reduced, and the economic benefits of the clients are effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of motor internal design, and in particular to the field of terminal block structure inside a junction box, specifically a low-voltage, high-current terminal block structure for a motor. Background Technology

[0002] Based on current motor manufacturing practices and customer feedback, the bushings and screws on the terminal blocks inside the junction boxes of low-voltage, high-current motors are prone to overheating and burning, as well as accelerated aging. After review by the designers, it was found that this is because the screws themselves are not designed to withstand an overload of current. Over time, this can easily lead to damage. To avoid or reduce the occurrence of such incidents, the following measures are proposed. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a low-voltage, high-current terminal block structure for motors, in order to solve the difficulties of the prior art.

[0004] To achieve the above and other related objectives, this utility model provides a low-voltage, high-current terminal block structure for motors, comprising:

[0005] Junction box 1, wherein the junction box 1 is a hollow cavity 11 formed by four side walls;

[0006] Conductive module 2, which is disposed in cavity 11, includes: a first horizontal conductive plate 21, a second horizontal conductive plate 22 and a vertical conductive plate 23, with one end of the first horizontal conductive plate 21 and the second horizontal conductive plate 22 flush.

[0007] Wiring module 3 is disposed on the left and right sides of the first horizontal conductive plate 21 and on the second horizontal conductive plate 22 at the end flush with the first horizontal conductive plate 21.

[0008] According to the preferred embodiment, the conductive module 2 is installed inside the cavity 11 via a fixing plate.

[0009] According to the preferred embodiment, the tops of the first horizontal conductive plate 21 and the second horizontal conductive plate 22 are arranged in parallel, with the first horizontal conductive plate 21 located above the second horizontal conductive plate 22.

[0010] According to the preferred embodiment, the first horizontal conductive plate 21, the second horizontal conductive plate 22, and the vertical conductive plate 23 are all L-shaped.

[0011] According to the preferred embodiment, the vertical conductive plate 23 is bolted to the bottom of the horizontal plate of the first horizontal conductive plate 21 on the side near the vertical plate, and the bottom of the vertical conductive plate 23 is bolted to a second horizontal conductive plate 22.

[0012] According to the preferred embodiment, wiring module 3 includes:

[0013] A power supply wire clamping vertical plate 31 is set on one side of the vertical plate in the first horizontal conductive plate 21. A power supply wire limiting bolt 32 is passed through the center of the power supply wire clamping vertical plate 31. The bottom of the power supply wire limiting bolt 32 passes through the power supply wire clamping vertical plate 31 and is connected to the first horizontal conductive plate 21.

[0014] The controller wire pressing plate 33 is respectively set at the bottom of the first horizontal conductive plate 21 and the second horizontal conductive plate 22 at the same level. The controller wire pressing plate 33 is provided with a controller power supply line limiting bolt 34 through the center. The bottom of the controller power supply line limiting bolt 34 passes through the controller wire pressing plate 33 and is connected to the first horizontal conductive plate 21 or the second horizontal conductive plate 22 that is in contact with the controller wire pressing plate 33.

[0015] This utility model employs a junction box, a conductive module, and a wiring module. The purpose of this technical solution is to modify and upgrade the internal wiring socket of the junction box for low-voltage, high-current motors. It adopts a structure in which the power supply wire pressing vertical plate, the controller wire pressing horizontal plate, and the first horizontal conductive plate are pressed and installed on the second horizontal conductive plate to install the wiring terminal. This structure can carry a larger current, avoid damage or aging caused by screw overload, reduce the customer's parts replacement cost, and effectively protect the customer's economic interests.

[0016] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the present invention. Attached Figure Description

[0017] Figure 1 The image shown is a left view of this utility model.

[0018] Figure 2 This is shown as the front view of the present invention;

[0019] Figure 3 This is a cross-sectional view of the present invention.

[0020] Label Explanation

[0021] 1. Junction box;

[0022] 11. Cavity;

[0023] 2. Conductive module;

[0024] 21. Horizontal conductive plate No. 1;

[0025] 22. Horizontal conductive plate No. 2;

[0026] 23. Vertical conductive plate;

[0027] 3. Wiring module;

[0028] 31. Power supply wire clamping plate;

[0029] 32. Power supply cable limit bolt;

[0030] 33. Controller wire clamping plate;

[0031] 34. Limit bolts for the controller's power transmission line; Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components shown in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0034] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0035] This utility model proposes a low-voltage, high-current terminal block structure for motors, which is used in the design and manufacturing process of terminal blocks. This utility model is mainly used for fully enclosed low-voltage, high-current (600A and above) motors with a frame size of 315 or larger. However, the structure of the terminal box 1, conductive module 2 and wiring module 3 is particularly suitable for terminal box working environments that need to adapt to the low-voltage, high-current inside the motor.

[0036] In general, the low-voltage, high-current terminal block structure for motors proposed in this utility model mainly includes: a junction box 1, a conductive module 2, and a wiring module 3. (See also...) Figure 1 It shows the arrangement of the conductive module 2 and the wiring module 3.

[0037] The low-voltage, high-current terminal block structure for motors proposed in this utility model requires, before installation, the appropriate power supply wire clamping vertical plate 31 and controller wire clamping horizontal plate 33 to be selected according to the required load current of the terminal block in the designed process circuit. Then, as follows... Figure 3 As shown, the power supply cable is inserted into the cavity 11 from one side of the junction box 1. The power supply cable terminal is clamped between the first horizontal conductive plate 21 and the power supply wire pressing vertical plate 31. The power supply cable terminal is then clamped by tightening the power supply cable limiting bolt 32 to complete the wiring. The controller or sensor power supply cable terminal is inserted into the cavity 11 from one side of the junction box 1 and clamped between the first horizontal conductive plate 21 and the controller wire pressing horizontal plate 33, or between the second horizontal conductive plate 22 and the controller wire pressing horizontal plate 33. The controller or sensor power supply cable terminal is then clamped by tightening the controller power supply cable limiting bolt 34 to complete the wiring. The purpose of this technical solution is to upgrade the internal terminal block of the low-voltage high-current motor junction box. By selecting the structure of the power supply wire pressing vertical plate 31, the controller wire pressing horizontal plate 33, and the first horizontal conductive plate 21 being clamped and installed on the second horizontal conductive plate 22, the terminal block can be installed with a larger current, avoiding damage or aging caused by screw overload, reducing the customer's parts replacement costs, and effectively protecting the customer's economic interests.

[0038] The aforementioned conductive module 2 is disposed within the cavity 11. The conductive module 2 includes: a first horizontal conductive plate 21, a second horizontal conductive plate 22, and a vertical conductive plate 23. The first horizontal conductive plate 21 and the second horizontal conductive plate 22 are flush at one end, and their tops are arranged in parallel. The first horizontal conductive plate 21 is located above the second horizontal conductive plate 22. The first horizontal conductive plate 21 and the second horizontal conductive plate 22 are divided into two power supply lines. The first horizontal conductive plate 21, the second horizontal conductive plate 22, and the vertical conductive plate 23 are all L-shaped for easy installation and splicing. The vertical conductive plate 23 is bolted to the bottom of the horizontal plate of the first horizontal conductive plate 21 on the side closest to the vertical plate. The second horizontal conductive plate 22 is bolted to the bottom of the vertical conductive plate 23.

[0039] The aforementioned wiring module 3 is located on the left and right sides of the first horizontal conductive plate 21 and on the second horizontal conductive plate 22 at the same level as the first horizontal conductive plate 21. The wiring module 3 includes: a power supply line clamping vertical plate 31, a power supply line limiting bolt 32, a controller line clamping horizontal plate 33, and a controller power transmission line limiting bolt 34. The power supply line clamping vertical plate 31 is located on one side of the vertical plate of the first horizontal conductive plate 21. The power supply line limiting bolt 32 passes through the center of the power supply line clamping vertical plate 31. The bottom of the limiting bolt 32 passes through the power supply wire pressing vertical plate 31 and is connected to the first horizontal conductive plate 21. The bottom of the first horizontal conductive plate 21 and the second horizontal conductive plate 22 are respectively set on the same side of the bottom. The controller wire pressing horizontal plate 33 is provided with the controller power supply wire limiting bolt 34 passing through the center of the controller wire pressing horizontal plate 33. The bottom of the controller power supply wire limiting bolt 34 passes through the controller wire pressing horizontal plate 33 and is connected to the first horizontal conductive plate 21 or the second horizontal conductive plate 22 that is in contact with the controller wire pressing horizontal plate 33.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A low-voltage, high-current terminal block structure for an electric motor, characterized in that, include: Junction box (1), wherein the junction box (1) is a hollow cavity (11) formed by four side walls; Conductive module (2), the conductive module (2) is disposed in cavity (11), the conductive module (2) includes: a first horizontal conductive plate (21), a second horizontal conductive plate (22) and a vertical conductive plate (23), the first horizontal conductive plate (21) and the second horizontal conductive plate (22) are flush at one end; Wiring module (3) is set on the left and right sides of the first horizontal conductive plate (21) and on the direction where the second horizontal conductive plate (22) is flush with the first horizontal conductive plate (21).

2. The low-voltage high-current terminal block structure for motors according to claim 1, characterized in that, The tops of the first horizontal conductive plate (21) and the second horizontal conductive plate (22) are arranged in parallel, with the first horizontal conductive plate (21) located above the second horizontal conductive plate (22).

3. The low-voltage high-current terminal block structure for motors according to claim 2, characterized in that, The first horizontal conductive plate (21), the second horizontal conductive plate (22), and the vertical conductive plate (23) are all L-shaped.

4. The low-voltage high-current terminal block structure for motors according to claim 3, characterized in that, The vertical conductive plate (23) is bolted to the bottom of the horizontal plate of the first horizontal conductive plate (21) on the side close to the vertical plate. The bottom of the vertical conductive plate (23) is bolted to a second horizontal conductive plate (22).

5. The low-voltage high-current terminal block structure for motors according to claim 4, characterized in that, The wiring module (3) includes: A power supply wire clamping plate (31) is provided on one side of the vertical plate in the first horizontal conductive plate (21). A power supply wire limiting bolt (32) is provided in the center of the power supply wire clamping plate (31). The bottom of the power supply wire limiting bolt (32) passes through the power supply wire clamping plate (31) and is connected to the first horizontal conductive plate (21). The controller wire pressing plate (33) is respectively set at the bottom of the first horizontal conductive plate (21) and the second horizontal conductive plate (22) on the same side. The controller wire pressing plate (33) is provided with a controller power supply line limiting bolt (34) in the center. The bottom of the controller power supply line limiting bolt (34) passes through the controller wire pressing plate (33) and is connected to the first horizontal conductive plate (21) or the second horizontal conductive plate (22) that is in contact with the controller wire pressing plate (33).

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