Three-phase line wiring device
By designing the matching structure of the insulating seat and the conductive rod, and using welding cups and screws to connect, the problems of high cost and large space occupancy of traditional three-phase electrical connectors are solved, and a low-cost, easy installation and electrical isolation of three-phase wires are achieved. Wiring device.
Patent Information
- Application Number
- CN202420830782.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-22
AI Technical Summary
Traditional three-phase electrical connectors have high cost, large space and fixed installation methods, making them difficult to use in narrow applications.
Design a three-phase wiring device including an insulating seat and a conductive pole, and realizes electrical connection through welding cups and screws. It adopts a mutually coordinated structure to reduce costs and footprints, and improves electrical isolation through partitions and positioning sleeves. .
It realizes a low-cost, easy to process and assembly, suitable for narrow spaces and ensures electrical isolation and connection reliability.
Smart Images
Figure CN222191200U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a wiring device, in particular to a three-phase line wiring device. Background Art
[0002] In electronic products, two components with electrical connections are connected by welding or connectors. When the current is large, the welding points will generally be large and the leads will not be easy to fix. Therefore, when the current is large, electrical connectors are almost always used for connection. For example, in three-phase line application scenarios, there is generally a large current, so an electrical connector is used to connect two sets of three-phase lines.
[0003] The use of traditional electrical connectors to connect two sets of three-phase lines has the following defects: the electrical connector is expensive, the cost is high, and the installation method is relatively fixed, occupying a large area and space. It is not suitable for some relatively narrow application occasions, so it is inconvenient to use. Utility Model Content
[0004] The purpose of the utility model is to provide a three-phase line connection device which is low in cost and easy to use in order to solve the above problems.
[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:
[0006] A three-phase line wiring device includes an insulating seat and three conductive rods. The insulating seat is provided with three circular through holes with mutually parallel axial directions. A square countersunk hole is provided on the circumferential hole wall at one end of the circular through hole. The center line of the circular through hole coincides with the center line of the corresponding square countersunk hole. Mounting through holes are respectively provided at positions corresponding to the three circular through holes on the insulating seat. The axial directions of the mounting through holes are perpendicular to the axial directions of the circular through holes. The mounting through holes are communicated with the corresponding circular through holes. A square portion is provided at one end of the conductive rod. A connecting screw hole is provided on the end surface of the square portion. A welding cup is provided at the other end of the conductive rod. A mounting screw hole is provided on the conductive rod. The three conductive rods respectively pass through the three circular through holes. The three square portions are respectively placed in the three square countersunk holes. A plurality of mounting screws respectively pass through the plurality of mounting through holes and are connected with the plurality of mounting screw holes.
[0007] Preferably, in order to improve the electrical isolation effect between the three-phase lines, a partition is provided on the insulating seat between two adjacent square countersunk holes, and the partition is integrally formed with the insulating seat.
[0008] Preferably, in order to further improve the electrical isolation effect between the three-phase lines, three raised positioning sleeves are provided on the end of the insulating seat away from the square countersunk hole, the positioning sleeves are integrally formed with the insulating seat, the three positioning sleeves are respectively connected to the three circular through holes, the three conductive rods respectively pass through the three positioning sleeves and the welding cups extend out of the corresponding positioning sleeves.
[0009] Preferably, in order to facilitate installation of the device, outwardly protruding mounting ears are respectively provided on both sides of the insulating seat close to the positioning sleeve, and mounting holes are provided on the mounting ears.
[0010] Preferably, in order to more stably connect the conductive rod and the insulating seat, the insulating seat is provided with mounting through holes at positions corresponding to the three circular through holes on opposite sides, and the conductive rod is provided with mounting screw holes on opposite sides, and the six mounting screws are respectively passed through the six mounting through holes and connected to the six mounting screw holes.
[0011] Preferably, in order to facilitate the exhaust of air during welding to achieve a better welding effect, a vent hole is provided on the side wall of the welding cup.
[0012] The beneficial effects of the utility model are:
[0013] The utility model is designed with an insulating seat and three conductive rods that cooperate with each other. The three phase lines can be reliably connected to the three conductive rods by cup welding or screw connection. The whole product is easy to process and assemble, has low cost, is easy to install, occupies a small area and space, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is one of the three-phase wiring device of the utility model before assembly;
[0015] Figure 2 This is the second stereogram of the three-phase wiring device of the utility model before assembly, and Figure 1 The perspective is different;
[0016] Figure 3 This is one of the three-phase wiring device assembled according to the utility model;
[0017] Figure 4 This is the second stereogram of the three-phase wiring device of the utility model after assembly, and Figure 3 The perspective is different. DETAILED DESCRIPTION
[0018] The utility model is further described below in conjunction with the accompanying drawings:
[0019] like Figure 1-Figure 4As shown, the three-phase line wiring device of the utility model includes an insulating seat 2 and three conductive rods 1. The insulating seat 2 is provided with three circular through holes 23 with mutually parallel axial directions. A square countersunk hole 22 is provided on the circumferential hole wall at one end of the circular through hole 23. The center line of the circular through hole 23 coincides with the center line of the corresponding square countersunk hole 22. Mounting through holes 24 (countersunk holes) are respectively provided at positions corresponding to the three circular through holes 23 on the insulating seat 2. The axial direction of the mounting through holes 24 is perpendicular to the axial direction of the circular through holes 23. The mounting through holes 24 are connected with the corresponding circular through holes 23. A square portion 11 is provided at one end of the conductive rod 1. A connecting screw hole 12 is provided on the end surface of the square portion 11. A welding cup 14 is provided at the other end of the conductive rod 1. A mounting screw hole 13 is provided on the conductive rod 1. The three conductive rods 2 respectively pass through the three circular through holes 23. The three square portions 11 are respectively placed in the three square countersunk holes 22. A plurality of mounting screws 3 respectively pass through a plurality of mounting through holes 24 and are connected with a plurality of mounting screw holes 13.
[0020] like Figure 1-Figure 4 As shown, the utility model also discloses the following more optimized specific structures:
[0021] In order to improve the electrical isolation effect between the three-phase lines, a partition plate 21 is provided between two adjacent square countersunk holes 22 on the insulating seat 2 , and the partition plate 21 is integrally formed with the insulating seat 2 .
[0022] In order to further improve the electrical isolation effect between the three-phase lines, three raised positioning sleeves 25 are provided on the end of the insulating seat 2 away from the square countersunk hole 22. The positioning sleeves 25 are integrally formed with the insulating seat 2. The three positioning sleeves 25 are respectively connected to the three circular through holes 23. The three conductive rods 1 respectively pass through the three positioning sleeves 25 and the welding cups 14 extend out of the corresponding positioning sleeves 25.
[0023] In order to facilitate the installation of the device, the insulating seat 2 is provided with outwardly protruding mounting ears on both sides close to the positioning sleeve 25, and the mounting ears are provided with mounting holes 26.
[0024] In order to more stably connect the conductive rod 1 and the insulating seat 2, mounting through holes 24 are respectively provided at positions corresponding to the three circular through holes 23 on the opposite sides of the insulating seat 2, and mounting screw holes 13 are respectively provided on the opposite sides of the conductive rod 1. Six mounting screws 3 pass through the six mounting through holes 24 and are connected to the six mounting screw holes 13 respectively.
[0025] In order to facilitate the exhaust of air during welding to achieve a better welding effect, a vent hole 15 is provided on the side wall of the welding cup 14 .
[0026] like Figure 1-Figure 4As shown, when used, the device is first installed on the corresponding equipment (not shown in the figure) through two screws and the mounting hole 26, and then a group of three phase lines (not shown in the figure) corresponding to the three-phase power supply are respectively connected to the welding cups 14 of the three conductive rods 1 by welding, and another group of three phase lines (not shown in the figure) corresponding to the electrical appliances are respectively connected to the connecting screw holes 12 of the three conductive rods 1 through OT terminals (i.e., circular cold-pressed terminals) and connecting screws, so as to achieve a reliable conductive connection between the two groups of three-phase lines.
[0027] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.
Claims
1. A three-phase line connection device, comprising an insulating seat, characterized in that: It also includes three conductive rods, the insulating seat is provided with three circular through holes with mutually parallel axial directions, a square countersunk hole is provided on the circumferential hole wall at one end of the circular through hole, the center line of the circular through hole coincides with the center line of the corresponding square countersunk hole, mounting through holes are respectively provided at positions corresponding to the three circular through holes on the insulating seat, the axial direction of the mounting through holes is perpendicular to the axial direction of the circular through holes, the mounting through holes are communicated with the corresponding circular through holes, a square portion is provided at one end of the conductive rod, a connecting screw hole is provided on the end surface of the square portion, a welding cup is provided at the other end of the conductive rod, a mounting screw hole is provided on the conductive rod, the three conductive rods respectively pass through the three circular through holes, the three square portions are respectively placed in the three square countersunk holes, and a plurality of mounting screws respectively pass through the plurality of mounting through holes and are connected with the plurality of mounting screw holes.
2. The three-phase line connection device according to claim 1, characterized in that: A partition is provided on the insulating seat between two adjacent square countersunk holes, and the partition is integrally formed with the insulating seat.
3. The three-phase line connection device according to claim 2, characterized in that: Three raised positioning sleeves are provided on one end of the insulating seat away from the square countersunk hole. The positioning sleeves are integrally formed with the insulating seat. The three positioning sleeves are respectively connected to the three circular through holes. The three conductive rods pass through the three positioning sleeves respectively and the welding cups extend out of the corresponding positioning sleeves.
4. The three-phase line connection device according to claim 3, characterized in that: The insulating seat is provided with outwardly protruding mounting ears on both sides close to the positioning sleeve, and the mounting ears are provided with mounting holes.
5. The three-phase line connection device according to any one of claims 1 to 4, characterized in that: The insulating seat is provided with mounting through holes at positions corresponding to the three circular through holes on opposite sides, and the conductive rod is provided with mounting screw holes on opposite sides. The six mounting screws pass through the six mounting through holes and are connected with the six mounting screw holes respectively.
6. The three-phase line connection device according to any one of claims 1 to 4, characterized in that: A vent hole is arranged on the side wall of the welding cup.