Terminal structure of inverter circuit board

Abstract

The utility model discloses a terminal structure of an inverter circuit board, and relates to the technical field of inverters, the terminal structure comprises an inverter circuit board body and a wiring terminal housing, the wiring terminal housing is installed and connected on the outer side edge of the inverter circuit board body, the inner side of the wiring terminal housing is provided with a clamping positioning screw, and the clamping positioning screw is connected with the wiring terminal housing. A wiring cavity is arranged between the wiring terminal shell and the clamping and positioning screw, and rotating arm rods are arranged at the two ends of the wiring terminal shell. According to the utility model, the wire source buckle plate structure is arranged, so that the wire source buckle plate is convenient to limit, fix and use, the connecting panel of the wire source buckle plate is connected to the rotating arm rod in an adhesion manner, so that the connecting panel is convenient to mount and place, and the C-shaped clamping ring on the inner side of the upper end of the connecting panel passes through the area of the clamping sleeve cavity, so that an external wire source can be buckled; in this way, the external line source is effectively pulled, loosening and falling are avoided, and positioning and clamping are facilitated through the clamping and positioning screw structure.

Description

Technical Field

[0001] The utility model relates to the technical field of inverters, in particular to a terminal structure of an inverter circuit board. Background Art

[0002] An inverter is a converter that converts DC power into constant frequency and voltage or frequency and voltage regulated AC power. It consists of an inverter bridge, control logic and filter circuits. It is widely used in air conditioners, home theaters, electric grinding wheels, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. When the inverter circuit board is connected to the outside, the wiring terminals of the circuit board are needed.

[0003] The existing Chinese patent CN205752631U, on November 30, 2016, disclosed a terminal structure for a photovoltaic inverter circuit board, including a PCB circuit board, on which at least one wiring terminal is provided, the wiring terminal including a fixing seat and a spring, the fixing seat is fixed on the PCB circuit board, the fixing seat is electrically connected to the printed circuit on the PCB circuit board, the spring includes a bent portion and an elastic arm, one end of the bent portion is connected to the fixed seat, the other end of the bent portion is connected to the elastic arm, and the wiring end of the elastic arm extends out of the PCB circuit board.

[0004] However, when the connection terminals of the above device are connected to the external line source, the overall fixed connection is not very efficient, and when the external line source is placed, the line source lacks a positioning structure, so the line source is easily pulled and dropped. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a terminal structure of an inverter circuit board is proposed, in which the line source is fixed outside on the line source snap plate at the outer end of the rotating arm, so that the line source can be effectively fixed and pulled, thereby preventing the line source from loosening and falling off, and the clamping positioning screw is rotated and moved downward, so that it can be stably clamped and positioned for use.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A terminal structure of an inverter circuit board comprises an inverter circuit board body and a terminal housing, wherein the terminal housing is mounted and connected to the outer side of the inverter circuit board body, a clamping positioning screw is arranged on the inner side of the terminal housing, a wiring cavity is arranged between the terminal housing and the clamping positioning screw, rotating arms are arranged at both ends of the terminal housing, and a line source snap plate is arranged at the front end of the rotating arm.

[0008] Through the above technical solution: personnel place the external line source in the wiring cavity between the terminal housing and the clamping positioning screw, thereby rotating the clamping positioning screw on the terminal housing to move downward, so that the clamping positioning screw contacts the outside of the line source, so that the line source can be stably fixed on the terminal housing, and then the outside of the line source is fixed on the line source snap plate at the outer end of the rotating arm, which can effectively fix and pull the line source, thereby preventing the line source from loosening and falling off.

[0009] The utility model is further configured such that the clamping positioning screw includes a bottom clamping cavity, an abutting end plate, an inner sleeve column and a metal screw, the lower end of the metal screw is provided with an inner sleeve column, the surrounding side of the inner sleeve column is provided with an abutting end plate, the inner side of the lower end of the abutting end plate is provided with a bottom clamping cavity, and the metal screw is connected to the terminal housing.

[0010] Through the above technical solution: due to the clamping positioning screw structure, the device can be rotated and moved downward for clamping.

[0011] The utility model is further configured such that the line source snap plate includes a connecting panel, a clamping sleeve cavity and a C-shaped clamping ring, a C-shaped clamping ring is provided on the inner side of the upper end of the connecting panel, a clamping sleeve cavity is provided inside the C-shaped clamping ring, and the connecting panel is connected to the rotating arm.

[0012] Through the above technical solution: due to the line source buckle plate structure, it is convenient to use the limit buckle.

[0013] The utility model is further configured as follows: the rotating arm comprises an outer disc, a T-shaped sleeve column, a limiting sleeve disc and a connecting round rod, the inner side of the outer end of the limiting sleeve disc is provided with a T-shaped sleeve column, the outer end of the T-shaped sleeve column is provided with an outer disc, the front end of the outer disc is provided with a connecting round rod, the connecting round rod is connected to the line source snap plate, and the limiting sleeve disc is connected to the terminal housing.

[0014] Through the above technical solution: due to the rotating arm structure, it is convenient to use the limited rotation and pulling.

[0015] The utility model is further configured that two rotating arms are provided in total, and the rotating arms are symmetrically arranged on two ends of the terminal housing.

[0016] Through the above technical solution: due to the rotating arm structure, it is convenient to rotate and pull for use.

[0017] The utility model is further configured that the terminal housing and the clamping positioning screw are rotatably connected via threads.

[0018] Through the above technical solution: because the terminal housing and the clamping positioning screw are rotatably connected through threads, it is convenient to rotate and fix for use.

[0019] The utility model is further configured such that the bottom end of the line source snap plate is aligned with the bottom end of the inverter circuit board body.

[0020] Through the above technical solution: because the bottom end of the line source snap plate is aligned with the bottom end of the inverter circuit board body, no obstruction occurs when placing and pulling.

[0021] The utility model is further configured that the rotating arm is symmetrically arranged on the inner corner of the line source snap plate.

[0022] Through the above technical solution: because the rotating arm is symmetrically arranged on the inner corner of the line source snap plate, the line source snap plate is more stable when it is rotated by the rotating arm.

[0023] The beneficial effects of the utility model are:

[0024] 1. A line source snap plate structure is provided, which is convenient for limiting and fixing. The connection panel of the line source snap plate is adhesively connected to the rotating arm, so that the connection panel is easy to install and place. The C-shaped snap ring on the inner side of the upper end of the connection panel allows the C-shaped snap ring to pass through the area of ​​the clamping sleeve cavity, so that the external line source can be snapped, which effectively pulls the external line source to prevent it from loosening and falling off.

[0025] 2. A clamping and positioning screw structure is provided to facilitate clamping and fixing for use. The metal screw thread of the clamping and positioning screw is rotatably connected to the terminal housing. When the metal screw rotates in the forward direction, the metal screw can rotate and move downward on the terminal housing. The metal screw can drive the inner sleeve to rotate on the abutting end plate during rotation. When the metal screw rotates and moves downward, the metal screw can drive the abutting end plate to move downward. The abutting end plate is effectively wrapped and clamped on the outside of the line source due to the bottom clamping cavity on the inner side of the lower end. In this way, the abutting end plate can effectively clamp the line source for fixed use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional structural schematic diagram of a terminal structure of an inverter circuit board proposed by the utility model;

[0027] Figure 2 This is a schematic diagram of a clamping and positioning screw structure of a terminal structure of an inverter circuit board proposed by the utility model;

[0028] Figure 3 This is a schematic diagram of a line source clip plate structure of a terminal structure of an inverter circuit board proposed by the utility model;

[0029] Figure 4 The utility model provides a schematic diagram of a rotating arm structure of a terminal structure of an inverter circuit board.

[0030] In the figure: 1. Inverter circuit board body; 2. Terminal housing; 3. Clamping positioning screw; 31. Bottom clamping cavity; 32. Abutment end plate; 33. Inner sleeve column; 34. Metal screw; 4. Wiring cavity; 5. Rotating arm; 51. Outer disc; 52. T-shaped sleeve column; 53. Limiting sleeve disc; 54. Connecting round rod; 6. Line source snap plate; 61. Connecting panel; 62. Clamping sleeve cavity; 63. C-shaped clamping ring. DETAILED DESCRIPTION

[0031] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0034] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0035] Reference Figure 1-Figure 4, a terminal structure of an inverter circuit board, comprising an inverter circuit board body 1 and a terminal housing 2, the terminal housing 2 is installed and connected to the outer side of the inverter circuit board body 1, a clamping positioning screw 3 is arranged on the inner side of the terminal housing 2, a wiring cavity 4 is arranged between the terminal housing 2 and the clamping positioning screw 3, rotating arms 5 are arranged at both ends of the terminal housing 2, and a line source snap plate 6 is arranged at the front end of the rotating arm 5. When in use, a person places an external line source in the wiring cavity 4 between the terminal housing 2 and the clamping positioning screw 3, thereby moving the clamping positioning screw 3 on the rotating terminal housing 2 downward, so that the clamping positioning screw 3 contacts the outside of the line source, so that the line source can be stably fixed on the terminal housing 2, and then the outside of the line source is fixed on the line source snap plate 6 at the outer end of the rotating arm 5, so that the line source can be effectively fixed and pulled, thereby preventing the line source from loosening and falling off.

[0036] The cam 33 is a substantially parallelogram of the cam 34, and the cam 33 is a substantially parallelogram of the cam 34. The cam 33 is a substantially parallelogram of the cam 34, and the cam 33 is a substantially parallelogram of the cam 34.

[0037] Specifically, the line source snap plate 6 includes a connecting panel 61, a clamping sleeve cavity 62 and a C-type snap ring 63. A C-type snap ring 63 is provided on the inner side of the upper end of the connecting panel 61, and a clamping sleeve cavity 62 is provided inside the C-type snap ring 63. The connecting panel 61 is connected to the rotating arm 5. The connecting panel 61 of the line source snap plate 6 is adhesively connected to the rotating arm 5, so that the connecting panel 61 is easy to install and place. Due to the C-type snap ring 63 on the inner side of the upper end of the connecting panel 61, the C-type snap ring 63 passes through the area of ​​the clamping sleeve cavity 62, so that the external line source can be clamped, thereby effectively pulling the external line source to prevent loosening and falling off.

[0038] Specifically, the rotating arm 5 includes an outer disc 51, a T-shaped sleeve column 52, a limiting sleeve disc 53 and a connecting round rod 54. The inner side of the outer end of the limiting sleeve disc 53 is provided with a T-shaped sleeve column 52, the outer end of the T-shaped sleeve column 52 is provided with an outer disc 51, the front end of the outer disc 51 is provided with a connecting round rod 54, the connecting round rod 54 is connected to the line source buckle plate 6, the limiting sleeve disc 53 is connected to the terminal housing 2, and the limiting sleeve disc 53 of the rotating arm 5 is adhesively connected to the terminal housing 2. The limiting sleeve 53 is convenient for installation and placement. Due to the internal groove area of ​​the limiting sleeve 53, the T-shaped sleeve column 52 can be limited and rotated in the limiting sleeve 53. When the T-shaped sleeve column 52 rotates, the T-shaped sleeve column 52 can drive the outer disc 51 to rotate, and the outer disc 51 can drive the connecting rod 54 to rotate. When the connecting rod 54 rotates, the connecting rod 54 can drive the line source snap plate 6 for use, making it easy to rotate and unfold the line source snap plate 6 for placement and use.

[0039] Specifically, there are two rotating arms 5, and the rotating arms 5 are symmetrically arranged on both ends of the terminal housing 2, so that they can be rotated and pulled for use.

[0040] Specifically, the terminal housing 2 and the clamping and positioning screw 3 are rotatably connected via threads, which facilitates rotation and fixation for use.

[0041] Specifically, the bottom end of the line source snap plate 6 is aligned with the bottom end of the inverter circuit board body 1 so that no obstruction occurs when placing and pulling.

[0042] Specifically, the rotating arm 5 is symmetrically arranged on the inner corner of the line source snap plate 6 , so that the line source snap plate 6 is more stable when being rotated by the rotating arm 5 .

[0043] Working principle: When in use, personnel place the external line source in the wiring cavity 4 between the terminal housing 2 and the clamping positioning screw 3, thereby rotating the clamping positioning screw 3 on the terminal housing 2 to move downward, so that the clamping positioning screw 3 contacts the outside of the line source, so that the line source can be stably fixed on the terminal housing 2, and then the outside of the line source is fixed on the line source snap plate 6 at the outer end of the rotating arm 5, which can effectively fix and pull the line source, thereby preventing the line source from loosening and falling off.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A terminal structure of an inverter circuit board, comprising an inverter circuit board body (1) and a terminal housing (2), characterized in that: The terminal housing (2) is mounted and connected to the outer side of the inverter circuit board body (1); a clamping positioning screw (3) is provided on the inner side of the terminal housing (2); a wiring cavity (4) is provided between the terminal housing (2) and the clamping positioning screw (3); rotating arms (5) are provided at both ends of the terminal housing (2); and a line source snap plate (6) is provided at the front end of the rotating arms (5).

2. The terminal structure of an inverter circuit board according to claim 1, characterized in that: The clamping positioning screw (3) comprises a bottom clamping cavity (31), an abutting end plate (32), an inner sleeve column (33) and a metal screw (34); the lower end of the metal screw (34) is provided with an inner sleeve column (33); the circumferential side of the inner sleeve column (33) is provided with an abutting end plate (32); the inner side of the lower end of the abutting end plate (32) is provided with a bottom clamping cavity (31); and the metal screw (34) is connected to the terminal housing (2).

3. The terminal structure of an inverter circuit board according to claim 1, characterized in that: The line source snap plate (6) comprises a connection panel (61), a clamping sleeve cavity (62) and a C-shaped clamping ring (63); a C-shaped clamping ring (63) is arranged on the inner side of the upper end of the connection panel (61); a clamping sleeve cavity (62) is arranged inside the C-shaped clamping ring (63); and the connection panel (61) is connected to the rotating arm (5).

4. The terminal structure of an inverter circuit board according to claim 1, characterized in that: The rotating arm (5) comprises an outer disc (51), a T-shaped sleeve column (52), a limiting sleeve disc (53) and a connecting round rod (54); the inner side of the outer end of the limiting sleeve disc (53) is provided with a T-shaped sleeve column (52); the outer end of the T-shaped sleeve column (52) is provided with an outer disc (51); the front end of the outer disc (51) is provided with a connecting round rod (54); the connecting round rod (54) is connected to the line source buckle plate (6); and the limiting sleeve disc (53) is connected to the terminal housing (2).

5. The terminal structure of an inverter circuit board according to claim 1, characterized in that: There are two rotating arms (5) in total, and the rotating arms (5) are symmetrically arranged on both ends of the terminal housing (2).

6. The terminal structure of an inverter circuit board according to claim 1, characterized in that: The terminal housing (2) and the clamping positioning screw (3) are rotatably connected via threads.

7. The terminal structure of an inverter circuit board according to claim 1, characterized in that: The placement bottom end of the line source snap plate (6) is aligned with the bottom end of the inverter circuit board body (1).

8. The terminal structure of an inverter circuit board according to claim 5, characterized in that: The rotating arm (5) is symmetrically arranged on the inner corner of the line source snap plate (6).

Images