Rhombic power supply waterproof wire end male head with baffle plate

By setting a baffle between the power supply and signal female needle of the three-wheel/two-wheel electric vehicle charging plug, the problem of sparks causing short circuits and fire at high current is solved, and the safety of the plug is significantly improved.

CN222868173UActive Publication Date: 2025-05-13SHENZHEN FEIYIDA ELECTRONICS CO LTD
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Patent Information

Application Number
CN202421507729.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-05-13
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

The charging plugs of the existing lithium iron phosphate battery packs for three-wheel/two-wheel electric vehicles are prone to sparks when high currents, resulting in short circuit of the signal female needle and ignition of the male head, which poses a major safety hazard.

Method used

A diamond-shaped waterproof wire end male head with a baffle is designed, which is located between the power supply female needle and the signal female needle to separate the two, avoiding sparks and short circuits caused by high currents.

Benefits of technology

Through the design of the baffle, the power supply female needle is effectively avoided to generate sparks at high current, preventing the signal female needle from short circuit and male head catching fire, significantly improving the safety of the plug.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rhombic power supply waterproof wire end male head with a baffle plate, which comprises a non-detachable plug shell and a non-detachable wire arranged at the tail part of the plug shell, the bottom side wall of the plug shell is fixedly connected with a plug protection frame, and the plug protection frame is internally provided with a first plugging cavity and a second plugging cavity which are isolated from each other. Two power source female pins are arranged in the first plugging cavity, and six signal female pins are arranged in the second plugging cavity. The top of the plug protection frame is fixedly connected with an L-shaped baffle plate, and the baffle plate is located between the two power supply female pins and the six signal female pins. According to the utility model, the baffle plates are arranged between the two power supply female pins and the six signal female pins and are used for separating the power supply female pins from the signal female pins, so that fire catching caused by short circuit of the signal female pins due to sparks generated by the power supply female pins when the current of the power supply female pins is large is avoided, and the safety of the plug is high.
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Description

Technical Field

[0001] The utility model relates to the technical field of wire end male connectors, in particular to a diamond-shaped power supply waterproof wire end male connector with a baffle. Background Art

[0002] The battery of a three-wheeled / two-wheeled electric vehicle is the power source of the electric vehicle. It is a device that provides electricity to the motor of the electric vehicle and is an important factor in determining the mileage of the electric vehicle. Most of the existing lithium iron phosphate battery packs for three-wheeled / two-wheeled electric vehicles are charged at charging piles. Lithium batteries are small in size, light in weight, cost-effective, and can be used repeatedly.

[0003] When charging the lithium iron phosphate battery pack of a three-wheeled / two-wheeled electric vehicle, a special male plug needs to be connected to the socket hole of the vehicle body to provide a power signal. However, after the existing plug is plugged into the socket hole, there are the following shortcomings:

[0004] The plug generally includes two power female pins and six signal female pins. When the power female pins in the plug carry a large current, sparks generated by the power female pins can easily cause the signal female pins to short-circuit, which in turn can cause the male plug to catch fire, posing a major safety hazard. Utility Model Content

[0005] The utility model provides a diamond-shaped power waterproof wire terminal male connector with a baffle to solve the problems raised in the above background technology.

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

[0007] A diamond-shaped power waterproof wire end male plug with a baffle, comprising a non-detachable plug shell and a non-detachable wire with a tail portion thereof, a fixed pull ring fixedly connected to the top of the plug shell, an inner frame for inserting the wire fixedly connected to the inside of the plug shell, the inner frame is used to limit the wire at the tail end of the plug shell, a plug protection frame fixedly connected to the bottom side wall of the plug shell, an isolated first plug-in cavity and a second plug-in cavity are arranged in the plug protection frame, two power female pins are arranged in the first plug-in cavity, and six signal female pins are arranged in the second plug-in cavity;

[0008] An L-shaped baffle is fixedly connected to the top of the plug protection frame. The baffle is located between two power female pins and six signal female pins. The baffle is used to separate the power female pins and the signal female pins to prevent the power female pins from generating sparks when the power female pins carry a large current, causing the signal female pins to short-circuit and thus cause fire.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model provides a baffle between two power female pins and six signal female pins, and the baffle is used to separate the power female pins and the signal female pins, so as to avoid sparks generated by the power female pins when the power female pins have a large current, causing the signal female pins to short-circuit and cause fire, thereby making the plug safer.

[0011] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0013] Figure 1 It is a schematic diagram of the structure between the power female pin and the signal female pin at the top of the plug protection frame in the utility model;

[0014] Figure 2 This is a structural schematic diagram of a diamond-shaped power waterproof wire end male connector with a baffle proposed by the utility model;

[0015] Figure 3 This is a schematic diagram of the exploded structure of a diamond-shaped power waterproof wire end male connector with a baffle proposed by the utility model;

[0016] Figure 4 This is a schematic diagram of the bottom structure of a diamond-shaped power waterproof wire end male connector with a baffle proposed by the utility model;

[0017] Figure 5 This is a schematic diagram of the unfolded structure of the inner frame in the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Fixed pull ring; 2. Plug shell; 3. Inner frame; 4. Plug protection frame; 5. Wires; 6. Second plug-in cavity; 7. First plug-in cavity; 8. Power female pin; 9. Signal female pin; 301. Tail end upper cover; 302. Tail end lower cover; 303. Main frame; 304. Card slot; 305. Card block; 306. Clamping strip; 10. Baffle. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] See also Figures 1 to 4 In the embodiment of the utility model, a diamond-shaped power waterproof wire end male plug with a baffle comprises a non-detachable plug shell 2 and a non-detachable wire 5 at its tail, a fixed pull ring 1 is fixedly connected to the top of the plug shell 2, an inner frame 3 for inserting the wire 5 is fixedly connected to the inside of the plug shell 2, and the inner frame 3 is used to limit the wire 5 at the tail end of the plug shell 2. A plug protection frame 4 is fixedly connected to the bottom side wall of the plug shell 2, and an isolated first plug-in cavity 7 and a second plug-in cavity 6 are arranged in the plug protection frame 4, two power female pins 8 are arranged in the first plug-in cavity 7, and six signal female pins 9 are arranged in the second plug-in cavity 6;

[0024] An L-shaped baffle 10 is fixedly connected to the top of the plug protection frame 4. The baffle 10 is located between the two power female pins 8 and the six signal female pins 9. The baffle 10 is used to separate the power female pins 8 and the signal female pins 9 to prevent the power female pins 8 from generating sparks and causing short circuits in the signal female pins 9 when the power female pins 8 carry a large current, thereby causing fire.

[0025] Specifically, the inner frame 3 includes a main frame 303, one side of which is fixedly connected to a semi-cylindrical tail end upper cover 301, and the tail end upper cover 301 is connected to the tail end lower cover 302 through a buckle mechanism, and the buckle mechanism includes two clamping blocks 305 fixedly connected to the side wall of the tail end lower cover 302, and the side wall of the tail end upper cover 301 is provided with a clamping groove 304 adapted to the clamping block 305. When the tail end upper cover 301 and the tail end lower cover 302 are butt-jointed and spliced, the two clamping blocks 305 are clamped into the two clamping grooves 304, and the tail end upper cover 301 and the tail end lower cover 302 are buckled. A plurality of arc-shaped clamping strips 306 are provided on the inner side wall of the end lower cover 302, and the clamping strips 306 can improve the clamping force of the tail end upper cover 301 and the tail end lower cover 302 on the wire 5. When the inner frame 3 protects the wire 5, the wire 5 can first pass through the tail end upper cover 301 and the tail end lower cover 302 at the tail of the inner frame 3. The tail end upper cover 301 and the tail end lower cover 302 are butt-jointed and spliced ​​to clamp and fix the wire 5 in the inner frame 3, thereby limiting the position of the wire at the tail end of the plug shell 2 and avoiding the phenomenon that the plug and wire are easily broken during use by consumers.

[0026] The width of the inner frame 3 is 22 mm, the length of the plug housing 2 is 50 mm, and the inner width of the plug housing 2 is 22.1 mm.

[0027] The two power female pins 8 are respectively the positive and negative poles, the diameter of each power female pin 8 is 4 mm, the diameter of each signal female pin 9 is 1 mm, the surface of each signal female pin 9 and the power female pin 8 is provided with a fire-resistant anti-oxidation coating, the bottom end of each signal female pin 9 and the power female pin 8 is chamfered, the plug housing 2 is made of glass fiber reinforced PBT engineering plastic, the wire 5 is composed of a soft cable, and the wire 5 is composed of an internal flame-retardant copper core and a polyvinyl chloride insulating sheath sheathed on the outside.

[0028] The working principle of the utility model is:

[0029] An L-shaped baffle 10 is fixedly connected to the top of the plug protection frame 4. The baffle 10 is located between the two power female pins 8 and the six signal female pins 9. The baffle 10 is used to separate the power female pins 8 and the signal female pins 9 to prevent the power female pins 8 from generating sparks and causing short circuits in the signal female pins 9 when the power female pins 8 carry a large current, thereby causing fire.

[0030] When in use, you can first grasp the plug shell 2 and insert the plug protection frame 4 into the corresponding socket hole, so that the signal female pin 9 can provide an electrical signal and the power female pin 8 can provide power. The power female pin 8 and the signal female pin 9 are respectively located in the isolated first plug-in cavity 7 and the second plug-in cavity 6, which not only avoids the interference between the power female pin 8 and the signal female pin 9, but also has high efficient waterproof performance. When the plug needs to be unplugged, because the fixed pull ring 1 is located at the top of the plug shell 2, it can be better vertically stressed when unplugged, and then the fixed pull ring 1 can be hooked and pulled outward to quickly and easily remove the plug.

[0031] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A diamond-shaped waterproof power supply wire end male plug with a baffle, comprising a non-detachable plug housing (2) and a non-detachable wire (5) at its tail, characterized in that: A fixed pull ring (1) is fixedly connected to the top of the plug housing (2); an inner frame (3) for inserting an electric wire (5) is fixedly connected to the inside of the plug housing (2); the inner frame (3) is used to limit and protect the electric wire (5) at the rear end of the plug housing (2); a plug protection frame (4) is fixedly connected to the bottom side wall of the plug housing (2); an isolated first plug-in cavity (7) and a second plug-in cavity (6) are provided in the plug protection frame (4); two power female pins (8) are provided in the first plug-in cavity (7); and six signal female pins (9) are provided in the second plug-in cavity (6); A baffle plate (10) arranged in an L shape is fixedly connected to the top of the plug protection frame (4), and the baffle plate (10) is located between the two power female pins (8) and the six signal female pins (9). The baffle plate (10) is used to separate the power female pins (8) and the signal female pins (9) to prevent the power female pins (8) from generating sparks when the power female pins (8) have a large current, causing the signal female pins (9) to short-circuit, thereby causing the male connector to catch fire.