USB female plug weak wire for main control board of split variable frequency air conditioner

Abstract

The utility model discloses a split variable frequency air conditioner main control board USB female plug weak wire comprising a wire group, the wire group comprises a plurality of conductive wires, and two ends of the wire group are correspondingly provided with a USB female plug and a connector plug. The USB female plug comprises a hollow shell with two open ends, a terminal fixing plate installed in the hollow shell and a plurality of conductive terminals installed on the terminal fixing plate side by side, the plurality of conductive terminals on the fixing plate are welded and fixed with the first ends of the plurality of conductive wires, and an insulating protective shell is injection-molded at the first ends of the plurality of conductive wires and the periphery of the hollow shell. A slot is formed between the terminal fixing plate and the inner wall of the hollow shell; the connector plug comprises an insulating shell with two open ends and a hollow interior, an elastic plate integrally formed at the top of the insulating shell, and a plurality of plug-in sleeves installed in the insulating shell side by side. According to the utility model, the conductor wire plug and the electric appliance socket are fastened and are not easy to loosen, and the conductor wire and the plug are stably connected.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive wires, in particular to a weak wire of a USB female plug of a main control board of a split variable frequency air conditioner. Background Art

[0002] A conductive wire is also called a conductor or an electrical connection wire, etc. It generally includes a copper wire and an insulating layer wrapped outside the copper wire. An electrical connection wire group combines at least two conductive wires together, and is mainly used for conducting current, transmitting electrical energy or signals, and is a component that can realize quick connection between two electrical appliances.

[0003] In order to realize the electrical connection between two electrical appliances, some existing conductive wires adopt welding, that is, the two ends of the conductive wire are correspondingly welded and fixed to the circuits of the two electrical appliances. The welding method has the disadvantages of troublesome operation and inconvenient disassembly; some adopt plugging, that is, the two ends of the conductive wire are correspondingly plugged and fixed to the circuits of the two electrical appliances, such as a USB plug, which can realize detachable connection, but is easy to loosen and power off, thus affecting the normal operation of the electrical appliance and the circuit. Summary of the Utility Model

[0004] In order to at least overcome one of the technical problems existing in the prior art, the utility model provides a weak wire of a USB female plug of a main control board of a split variable frequency air conditioner, which can make the conductive wire plug and the electrical appliance socket firmly fastened and not easy to loosen, the connection between the conductive wire and the plug is stable, and the conductive wire is not easy to be pulled out, so as to ensure the stable operation of the circuit.

[0005] A weak wire of a USB female plug of a main control board of a split variable frequency air conditioner includes a wire group. The wire group includes a plurality of conductive wires. A USB female plug and a connector plug are correspondingly installed at both ends of the wire group. The USB female plug includes a hollow shell with openings at both ends, a terminal fixing plate installed in the hollow shell, and a plurality of conductive terminals arranged side by side on the terminal fixing plate. The plurality of conductive terminals on the fixing plate are welded and fixed to the first ends of the plurality of conductive wires. An insulating protective shell is injection-molded around the first ends of the plurality of conductive wires and the outer periphery of the hollow shell. The insulating protective shell tightly wraps the first ends of the plurality of conductive wires and the hollow shell together. A card slot is formed on the outer wall of the insulating protective shell, and the card slot is arranged in a ring shape along the outer wall of the insulating protective shell. A slot is formed between the terminal fixing plate and the inner wall of the hollow shell for a USB male plug to be inserted and electrically connected after insertion; the connector plug includes an insulating shell with openings at both ends and a hollow interior, an elastic plate integrally formed on the top of the insulating shell, a triangular clamping block integrally formed on the front top of the elastic plate, a guiding inclined surface arranged in front of the clamping block, and a plurality of plug sleeves arranged side by side in the insulating shell. The plurality of plug sleeves are riveted and fixed to the second ends of the plurality of conductive wires.

[0006] In some embodiments, a heat shrinkable tube is wrapped around the periphery of the wire group between the USB female plug and the connector plug.

[0007] In some embodiments, the slot is rectangular, the elastic plate extends along the length direction of the insulating housing, a V-shaped opening is formed between the elastic plate and the top of the insulating housing, and an L-shaped reinforcing plate is integrally formed between the top of the insulating housing and the top of the elastic plate.

[0008] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0010] Figure 1 is a schematic diagram of the front view connection structure of the present application;

[0011] Figure 2 is a schematic diagram of the top view connection structure of the present application;

[0012] Figure 3 is a schematic diagram of the top view structure of the USB female plug of the present application;

[0013] Figure 4 is a schematic diagram of the front view structure of the USB female plug of the present application;

[0014] Figure 5 is a schematic diagram of the front view structure of the connector plug of the present application.

[0015] Reference numerals:

[0016] Wire group 1, wire 100;

[0017] USB female plug 2, hollow shell 200, terminal fixing plate 201, conductive terminal 202, insulating protective shell 203, card slot 204, slot 205;

[0018] Connector plug 3, insulating housing 300, elastic plate 301, clamping block 302, guiding inclined surface 303, plug-in sleeve 304, V-shaped opening 305, L-shaped reinforcing plate 306;

[0019] Heat shrinkable tube 4. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0021] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, for example, terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model.

[0022] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the number itself, and understandings such as "above", "below", "within", etc. include the number itself. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] Refer to Figures 1 - 5, A weak wire of the USB female plug of the main control board of a split variable-frequency air conditioner, comprising a wire group 1. The wire group 1 includes four conductive wires 100 and an insulating sleeve that wraps the four conductive wires 100. At both ends of the wire group 1, a USB female plug 2 and a connector plug 3 are correspondingly installed. The USB female plug 2 includes a hollow shell 200 with openings at both ends, a rectangular terminal fixing plate 201 installed inside the hollow shell 200, and four conductive terminals 202 arranged side by side on the terminal fixing plate 201. The four conductive terminals 202 on the fixing plate are welded and fixed to the first ends of the four conductive wires 100. An insulating protective shell 203 is injection-molded around the first ends of the four conductive wires 100 and the outer periphery of the hollow shell 200. The insulating protective shell 203 tightly wraps the first ends of the four conductive wires 100 and the hollow shell 200 together. A card slot 204 is opened on the outer wall of the insulating protective shell 203, and the card slot 204 is arranged in a ring along the outer wall of the insulating protective shell 203. A slot 205 is formed between the terminal fixing plate 201 and the inner wall of the hollow shell 200 for electrical connection after the USB male plug is inserted; The connector plug 3 includes an insulating outer shell 300 with openings at both ends and a hollow interior, a rectangular elastic plate 301 integrally formed on the top of the insulating outer shell 300, a triangular clamping block 302 integrally formed on the front top of the elastic plate 301, a guiding inclined surface 303 arranged in front of the clamping block 302, and a plurality of plug sleeves 304 arranged side by side inside the insulating outer shell 300. The plurality of plug sleeves 304 are riveted and fixed to the second ends of the four conductive wires 100. The guiding inclined surface 303 is used to guide the clamping block 302 to smoothly slide into the limit slot of the socket during plugging for clamping and fixing.

[0025] In use, the first ends of the four conductive wires 100 are welded and fixed to the four conductive terminals 202 on the fixing plate, and then an insulating protective shell 203 is injection-molded on the periphery to prevent the connection between the two from loosening or breaking; the second ends of the four conductive wires 100 are riveted and fixed to the ends of the four plug sleeves 304 in the insulating housing 300; at this time, the wire group 1 realizes the connection with the USB female plug 2 and the connector plug 3. The connector plug 3 can be inserted into the socket on the main control board of the variable-frequency air conditioner. The four pins of the socket enter into the four plug sleeves 304 of the connector plug 3 for electrical connection, and the clamping block 302 at the front end of the elastic plate 301 is clamped into the limit groove of the socket for fixation; if it is necessary to separate the socket from the connector plug 3, just press down the elastic plate 301, and the clamping block 302 will move out of the limit groove of the socket, and then the connector plug 3 can be pulled out, which is convenient and fast; the USB female plug 2 is installed on the main control board of the variable-frequency air conditioner. The insulating protective shell 203 is just accommodated in the reserved hole of the air conditioner housing. The annular slot 204 opened on the outer wall of the insulating protective shell 203 cooperates with the clamping posts on the inner wall of the reserved hole, that is, the two symmetrically arranged clamping posts will be clamped into the annular slot 204 to realize the connection and fixation of the two and avoid loosening. Insert the data cable connector into the slot 205 of the USB female plug 2, and then the electrical connection or signal transmission can be realized, etc. This application can make the plug of the conductive wire 100 and the electrical socket firmly fastened and not easy to loosen, the connection between the conductive wire 100 and the plug is stable, and the conductive wire 100 is not easy to be pulled out, which can ensure the stable operation of the circuit.

[0026] In some embodiments, a heat shrinkable tube 4 is wrapped around the periphery of the wire group 1 between the USB female plug 2 and the connector plug 3. The heat shrinkable tube 4 can bind the four conductive wires 100 together, making it neater, and at the same time can protect the four conductive wires 100 from being worn.

[0027] In some embodiments, the slot 205 is rectangular, the elastic plate 301 extends along the length direction of the insulating housing 300, and a V-shaped opening 305 is formed between the elastic plate 301 and the top of the insulating housing 300 to give the elastic plate 301 a space for up and down movement. An L-shaped reinforcing plate 306 is integrally formed between the top of the insulating housing 300 and the top of the elastic plate 301 to prevent the elastic plate 301 from breaking after fatigue and extend its service life.

[0028] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A weak wire of the USB female plug of the main control board of a split variable-frequency air conditioner, comprising a wire group. The wire group includes multiple conductive wires. A USB female plug and a connector plug are correspondingly installed at both ends of the wire group. It is characterized in that: The USB female plug includes a hollow housing with openings at both ends, a terminal fixing plate installed inside the hollow housing, and a plurality of conductive terminals arranged side by side on the terminal fixing plate. The plurality of conductive terminals on the fixing plate are welded and fixed to the first ends of multiple conductive wires. An insulating protective housing is injection-molded around the first ends of the multiple conductive wires and the outer periphery of the hollow housing. The insulating protective housing tightly wraps the first ends of the multiple conductive wires and the hollow housing together. A card slot is formed on the outer wall of the insulating protective housing, and the card slot is arranged in a ring along the outer wall of the insulating protective housing. A slot is formed between the terminal fixing plate and the inner wall of the hollow housing for the USB male plug to be inserted and electrically connected after insertion; The connector plug includes an insulating housing with openings at both ends and a hollow interior, an elastic plate integrally formed on the top of the insulating housing, a triangular clamping block integrally formed on the front top of the elastic plate, a guiding inclined surface arranged in front of the clamping block, and a plurality of plug sleeves arranged side by side inside the insulating housing. The plurality of plug sleeves are riveted and fixed to the second ends of multiple conductive wires.

2. The weak current wire of the female USB plug of the main control board of the split variable frequency air conditioner according to claim 1, characterized in that: A heat shrinkable tube is wrapped around the periphery of the wire group between the USB female plug and the connector plug.

3. The weak current wire of the female USB plug of the main control board of the split variable-frequency air conditioner according to claim 1 or 2, characterized in that: The slot is rectangular. The elastic plate extends along the length direction of the insulating housing. A V-shaped opening is formed between the elastic plate and the top of the insulating housing. An L-shaped reinforcing plate is integrally formed between the top of the insulating housing and the top of the elastic plate.

Images