阅读说明：本技术 一种低压大功率电机用接线端子装置 (Wiring terminal device for low-voltage high-power motor ) 是由 张鹏 刘京州 陈立平 史海博 黄丽芳 杨亚斐 于 2018-06-11 设计创作，主要内容包括：本发明提供了一种低压大功率电机用接线端子装置,铜排一端设有电机出线接线端,铜排另外一端设有电机绕线引出负载接线端；电机出线接线端底部设有接线端,接线端中部设有接线孔,接线端上部设有第二螺纹,第二螺纹上设有压电陶瓷预留位,压电陶瓷预留位上部设有第一螺纹,第一螺纹外设有固定螺母,第二螺纹外设有塑料螺母,压电陶瓷预留位外套接有压电陶瓷。本发明结构合理,安装便捷,成本低廉,适用于低压大功率电机用接线端子。本发明利用压电陶瓷容量变化时刻可以监视其压紧状态,当出现季节性热胀冷缩又通过施加电压驱动压电陶瓷发生形变时,减少了因为持续热胀冷缩叠加导致螺丝松动的情况,保证了接线端的安全可靠,也方便了电机绕线的接入。(The invention provides a wiring terminal device for a low-voltage high-power motor, wherein one end of a copper bar is provided with a motor outgoing wiring terminal, and the other end of the copper bar is provided with a motor winding outgoing load wiring terminal; the motor is qualified for next round of competitions wiring end bottom and is equipped with the wiring end, and the wiring end middle part is equipped with the wiring hole, and wiring end upper portion is equipped with the second screw thread, is equipped with piezoceramics on the second screw thread and reserves the position, and piezoceramics reserves position upper portion and is equipped with first screw thread, and first screw thread is equipped with fixation nut outward, and the second screw thread is equipped with the plastics nut outward, and piezoceramics reserves the position overcoat and has connect piezoc. The connecting terminal is reasonable in structure, convenient and fast to install, low in cost and suitable for low-voltage high-power motors. The invention can monitor the compression state of the piezoelectric ceramic at any time by utilizing the capacity change of the piezoelectric ceramic, reduces the condition of screw loosening caused by continuous expansion and contraction superposition when seasonal expansion and contraction occur and the piezoelectric ceramic is driven to deform by applying voltage, ensures the safety and reliability of the terminal and is convenient for the access of the motor winding.)

1. A wiring terminal device for a low-voltage high-power motor comprises a copper bar, a motor outgoing wire terminal and a motor winding outgoing load terminal, and is characterized in that the motor outgoing wire terminal is arranged at one end of the copper bar, and the motor winding outgoing load terminal is arranged at the other end of the copper bar; the motor is qualified for next round of competitions wiring end bottom and is equipped with the wiring end, and the wiring end middle part is equipped with the wiring hole, and wiring end upper portion is equipped with the second screw thread, is equipped with piezoceramics on the second screw thread and reserves the position, and piezoceramics reserves position upper portion and is equipped with first screw thread, and first screw thread is equipped with fixation nut outward, and the second screw thread is equipped with the plastics nut outward, and piezoceramics reserves the position overcoat and has connect piezoc.

2. The terminal device for low-voltage high-power motor according to claim 1, wherein the motor winding lead-out load terminal is a hollow circular tube, the motor winding lead-out load terminal is internally provided with internal threads, a motor winding lead-out load terminal fixing screw is arranged in the motor winding lead-out load terminal, the motor winding lead-out load terminal fixing screw is provided with external threads adapted to the motor winding lead-out load terminal, the motor winding lead-out load terminal is provided with a wire inlet hole, and the motor winding lead-out load terminal fixing screw is provided with a cable fixing hole adapted to the wire inlet hole.

3. The terminal device for a low-voltage high-power motor according to claim 1, wherein a nut is provided on an upper portion of the motor winding lead-out load terminal fixing screw.

4. The terminal device for a low-voltage high-power motor according to claim 3, wherein the screw cap is provided with a linear groove.

5. The terminal device for the low-voltage high-power motor, according to claim 1, wherein the diameter of the terminal and the second thread is larger than the reserved piezoelectric ceramic diameter, and the reserved piezoelectric ceramic diameter is the same as the maximum diameter of the first thread.

6. The terminal device for low-voltage high-power motor according to claim 1, wherein the piezoelectric ceramic is provided with electrode lead-out wires on one side close to the plastic screw.

7. The terminal device for low-voltage high-power motor according to claim 1, wherein a terminal box housing is provided between the copper bar and the motor outlet terminal and the motor winding outlet load terminal.

8. The terminal device for low-voltage high-power motor according to claim 1, wherein the piezoelectric ceramic is in the shape of a circular ring, and electrodes are disposed on both upper and lower sides of the piezoelectric ceramic.

9. The terminal device for low-voltage high-power motor according to claim 1, wherein the piezoelectric ceramic lower electrode is electrically connected with the electrode lead wire.

10. The terminal device for a low-voltage high-power motor according to claim 1, wherein an insulating tape is left between the piezoelectric ceramic upper and lower electrodes and the inner and outer side edges of the piezoelectric ceramic ring.

Technical Field

The invention relates to the technical field of motors, in particular to a wiring terminal device in a junction box of a low-voltage high-power motor.

background

The terminal is an accessory product for realizing electrical connection, and is industrially classified into a connector category. With higher and higher industrial automation degree and stricter and more accurate industrial control requirements, the use amount of the wiring terminal gradually increases. With the development of the electronic industry, the use range of the connecting terminal is more and more, and the types of the connecting terminal are more and more. The most widely used at present are a hardware terminal, a nut terminal, a spring terminal, etc. in addition to a PCB terminal.

At present, a wiring terminal of a low-voltage high-power motor is fixed by a nut, the wiring mode is mostly delta, and the diameter of a cable used by the high-power motor is large, so that the cable is difficult to fix and operate, the electric clearance is reduced in the wiring treatment process, a large amount of space in a wiring box is occupied, the safety is reduced, and the wiring terminal is loosened along with the change of temperature, expansion with heat and contraction with cold.

Disclosure of Invention

The invention provides a wiring terminal device for a low-voltage high-power motor, which is reasonable in structure, convenient to install and low in cost and aims to solve the technical problems that in the prior art, a cable used by a high-power motor is large in diameter, the cable is difficult to fix and operate in a wiring treatment process, an electric gap is reduced, a large amount of space in a wiring box is occupied, safety is reduced, and a wiring terminal is loosened due to expansion with heat and contraction with cold along with temperature change. The compressing condition of the piezoelectric ceramic is detected at any time by utilizing the piezoelectric ceramic, the piezoelectric ceramic is driven to deform according to the temperature input reverse voltage, the slight deformation caused by expansion with heat and contraction with cold is compensated, the long-term deformation superposition is counteracted, and the looseness is generated, so that the piezoelectric ceramic has wide applicability in the field of motor wiring.

the invention provides a wiring terminal device for a low-voltage high-power motor, which comprises a copper bar, a motor outgoing wire terminal and a motor winding outgoing load terminal, wherein the motor outgoing wire terminal is arranged at one end of the copper bar, and the motor winding outgoing load terminal is arranged at the other end of the copper bar; the motor is qualified for next round of competitions wiring end bottom and is equipped with the wiring end, and the wiring end middle part is equipped with the wiring hole, and wiring end upper portion is equipped with the second screw thread, is equipped with piezoceramics on the second screw thread and reserves the position, and piezoceramics reserves position upper portion and is equipped with first screw thread, and first screw thread is equipped with fixation nut outward, and the second screw thread is equipped with the plastics nut outward, and piezoceramics reserves the position overcoat and has connect piezoc.

In the invention, a motor winding leading-out load wiring end is a hollow circular tube, internal threads are arranged inside the motor winding leading-out load wiring end, a motor winding leading-out load wiring end fixing screw is arranged in the motor winding leading-out load wiring end, the motor winding leading-out load wiring end fixing screw is provided with external threads matched with the motor winding leading-out load wiring end, a wire inlet hole is arranged on the motor winding leading-out load wiring end, and a cable fixing hole matched with the wire inlet hole is arranged on the motor winding leading-out load wiring end fixing screw

In the invention, a screw cap is arranged at the upper part of a fixing screw of a load wiring terminal led out by a motor winding.

In the invention, the screw cap is preferably provided with a linear groove.

in the invention, the diameters of the wiring terminal and the second thread are larger than the diameter of the reserved piezoelectric ceramic position, and the diameter of the reserved piezoelectric ceramic position is the same as the maximum diameter of the first thread.

In the invention, an electrode lead-out wire is arranged on one side of the piezoelectric ceramic close to the plastic screw.

In the invention, a junction box shell is arranged between the copper bar and the motor outgoing wire terminal and between the copper bar and the motor winding outgoing load wire terminal.

In the invention, the piezoelectric ceramic is in a ring shape, and electrodes are arranged on the upper side and the lower side of the piezoelectric ceramic.

In the invention, the piezoelectric ceramic lower electrode is electrically connected with the electrode lead-out wire.

In the invention, an insulating tape is left between the upper and lower electrodes of the piezoelectric ceramic and the inner and outer side edges of the piezoelectric ceramic circular ring.

The invention has the beneficial effects that:

The wiring terminal device for the low-voltage high-power motor provided by the invention is reasonable in structure, convenient to install and low in cost. The invention can monitor the compression state of the piezoelectric ceramic at any time by utilizing the capacity change of the piezoelectric ceramic, reduces the condition of screw loosening caused by continuous expansion and contraction superposition when seasonal expansion and contraction occur and the piezoelectric ceramic is driven to deform by applying voltage, ensures the safety and reliability of the terminal and is convenient for the access of the motor winding.

The invention has reasonable structure, beautiful appearance design, convenient installation and wide applicability, and can be matched with the load winding leading-out ends of motors with different diameters.

Drawings

FIG. 1 is a block diagram of the junction box of the present invention;

FIG. 2 is a cross-sectional view of the motor winding lead-out load terminal of the present invention;

FIG. 3 is a schematic view of the motor outlet terminal structure of the present invention;

FIG. 4 is a schematic view of the motor winding lead-out load terminal configuration of the present invention;

FIG. 5 is a schematic view of a motor winding lead-out load terminal fixing screw structure according to the present invention.

In the figures 1-5, 1-copper bar, 2-motor outgoing wire terminal, 3-motor winding outgoing load terminal, 4-fixing nut, 5-piezoelectric ceramic, 6-motor winding outgoing load terminal fixing screw, 7-first thread, 8-second thread, 9-piezoelectric ceramic reserved position, 10-wire connecting hole, 11-plastic nut, 12-wire connecting end, 13-wire inlet hole, 14-cable fixing hole, 15-screw cap, 16-wire connecting box shell and 17-electrode outgoing wire.

Detailed Description

the following description of the embodiments of the present invention will be made in further detail with reference to the accompanying fig. 1 to 5 and examples, but the method of the present invention is not limited to the following examples.

The copper bar 1, the fixing nut 4, the piezoelectric ceramic 5, the motor winding leading-out load wiring terminal fixing screw 6, the plastic nut 11 and the junction box shell 16 used in the invention can be purchased or obtained by customization in a market way.