Novel quick-plug elbow large-current cable connector

Abstract

The utility model provides a novel fast plug type bend heavy current cable connector, comprising an integrally formed terminal, a cable fixedly connected with the terminal, and an upper cover and a lower cover covering the outer side of the terminal, the upper cover and the lower cover are connected through a buckle, the terminal is L-shaped, one end of the L-shaped terminal is inserted into a terminal groove of the lower cover, and the other end of the L-shaped terminal is inserted into a terminal groove of the lower cover. And the other end is connected with the cable. By means of the mode, the problems that an existing quick-plug type cable connector is complex in structure, large in number of parts and high in cost are solved.

Description

Technical Field

[0001] The utility model relates to the field of cable connectors, in particular to a novel quick-plug elbow high-current cable connector. Background Art

[0002] In the existing quick-plug cable connectors on the market, the ring terminal generally needs to be installed in a metal cylinder for retention, and then the metal cylinder is pressed into the positioning hole of the cable crimping terminal and then connected to the wire.

[0003] The main problems with quick-plug cable connectors are as follows: the number of parts is relatively large, and multiple metal parts are included, resulting in high material costs; the assembly process is complex, production efficiency is low, and the multiple parts assembly process will lead to poor product contact stability; multiple metal parts are assembled and connected, and the contact impedance is large, which cannot meet the requirements of large current stable transmission applications; conventional quick-plug terminals are relatively single in type and have a limited range of applications. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a novel quick-plug elbow high-current cable connector, which solves the problems of existing quick-plug cable connectors, such as complex structure, multiple parts and high cost.

[0005] The main contents of the utility model include: a new type of quick-plug elbow high-current cable connector, including: an integrally formed terminal, a cable fixedly connected to the terminal, an upper cover and a lower cover arranged on the outside of the terminal, the upper cover and the lower cover are connected by a snap fastener, the terminal is arranged to be L-shaped, one end of the L-shaped terminal is inserted into the terminal slot of the lower cover, and the other end is connected to the cable.

[0006] Preferably, the connection between the terminal and the cable is riveting or welding.

[0007] Preferably, one end of the terminal is provided with an outward-turned flange portion.

[0008] Preferably, a first limiting plug block protruding outward is provided on the inner side of one end of the upper cover, and a second limiting plug block is provided on the other end of the upper cover.

[0009] Preferably, at least one avoidance groove is provided on the end surface of the upper cover, an elastic arm connected to the end surface of the upper cover is provided in the avoidance groove, and the free end of the elastic arm is provided with an inclined curved portion.

[0010] Preferably, an integrally formed terminal slot is provided on one side of the lower cover, and the shape of the terminal slot matches the terminal.

[0011] Preferably, a first limiting groove matching the shape of the first limiting plug is provided on the inner side of one end of the lower cover, and a second limiting groove for inserting the second limiting plug is provided on the other end of the lower cover.

[0012] Preferably, a plurality of buckles matching the avoidance grooves are provided on the end surface of the lower cover, and a barb is provided on one side of the buckle to prevent the elastic arm from withdrawing.

[0013] The beneficial effects of the present invention are:

[0014] 1. The ring terminal is formed by stamping in one piece. The one-piece design brings a stable and efficient assembly method and ensures the transmission capacity of large current;

[0015] 2. The tail of the ring terminal is designed with two different cable connection methods: riveting and ultrasonic welding. This reduces the traditional design's reliance on additional ring terminal retaining cylinders and cable crimping terminals, allowing the terminal tail to be directly connected to the cable, greatly saving material and assembly costs. It also avoids the additional contact impedance and power loss caused by assembling multiple terminal parts, thereby improving the product's current carrying capacity and stability.

[0016] 3. The 90-degree bend of the terminal can realize the vertical connection between the cable and the plug, which can effectively reduce the space occupied by the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a preferred embodiment of a new type of quick-plug elbow high-current cable connector;

[0018] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle part A;

[0019] Figure 3 for Figure 1 Exploded diagram;

[0020] Figure 4 It is a structural diagram of the terminal;

[0021] Figure 5 Schematic diagram of the three-dimensional structure of the upper cover;

[0022] Figure 6 Schematic diagram of the three-dimensional structure of the lower cover;

[0023] Figure 7 This is a schematic diagram of the three-dimensional structure of a new type of quick-plug elbow high-current cable connector embodiment 2;

[0024] Figure 8 This is a schematic diagram of the three-dimensional structure of a novel quick-plug elbow high-current cable connector embodiment 3;

[0025] Reference numerals:

[0026] 1-upper cover, 2-lower cover, 3-terminal, 4-cable;

[0027] 11-first limiting plug, 12-avoidance groove, 13-elastic arm, 131-bent portion, 14-second limiting plug;

[0028] 21-first limiting slot, 22-clip, 221-barb, 23-terminal slot, 24-second limiting slot, 25-blocking plate, 26, cable slot;

[0029] 31-outward-turned flange portion, 32-bending portion, 33-welding portion, 34-riveted portion. DETAILED DESCRIPTION

[0030] The technical solution protected by the present utility model is described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1 、 Figure 2 、 Figure 3 As shown, a new type of quick-plug elbow high-current cable connector includes: an integrally formed terminal 3, a cable 4 fixedly connected to the terminal 3, an upper cover 1 and a lower cover 2 covering the outside of the terminal 3, and the upper cover 1 and the lower cover 2 are connected by a snap.

[0033] like Figure 4 As shown, the terminal 3 is set to be L-shaped, one end of the L-shape is a terminal ring, and the other end is a welding part 33. A bending part 32 connecting the terminal ring and the welding part is provided between the welding part 33 and the terminal ring. The terminal ring at one end of the L-shape can be inserted into the terminal groove 23 of the lower cover, and the welding part 33 at the other end is welded to the cable 4.

[0034] Furthermore, an integrated outward-turned flange portion 31 is provided at one end of the terminal 3 near the bending portion 32. The diameter of the outward-turned flange portion 31 is larger than the terminal ring itself. Since the diameter of the outward-turned flange portion 31 is also larger than the terminal slot 23, through the structural design of the outward-turned flange portion 31 and the upper cover 1 and the lower cover 2 themselves, when the terminal 3 is inserted into the terminal slot 23, the terminal ring and the flange structure can be constrained and limited, so that the terminal can be stably held inside the upper cover 1 and the lower cover 2.

[0035] like Figure 5 As shown, a first limiting plug 11 protruding outward is provided on the inner side of one end of the upper cover 1, and a second limiting plug 14 is provided on the other end of the upper cover 1. Figure 6As shown, a first limiting groove 21 matching the shape of the first limiting plug 11 is provided on the inner side of one end of the lower cover 2, and a second limiting groove 24 for inserting the second limiting plug 14 is provided on the other end of the lower cover 2.

[0036] Combine Figure 1 、 Figure 2 As can be seen, when the upper cover 1 and the lower cover 2 are assembled, the first limiting insert 11 can be inserted into the first limiting groove 21, and the second limiting insert 14 can be inserted into the second limiting groove 24. Furthermore, since a blocking plate 25 is provided at the rear end of the lower cover 2, when the upper cover 1 and the lower cover 2 are closed, the cable 4 can be restrained in the cable groove 26 between the upper cover 1 and the lower cover 2.

[0037] Furthermore, in order to prevent the upper cover 1 and the lower cover 2 from falling off easily, Figure 5 、 Figure 6 As shown, at least one avoidance groove 12 is provided at the end face of the upper cover 1, and an elastic arm 13 connected to the end face of the upper cover is provided in the avoidance groove 12, and the free end of the elastic arm 13 is provided with an inclined curved portion 131. A plurality of buckles 22 matching the avoidance grooves 12 are provided at the end face of the lower cover 2, and a barb 221 is provided on one side of the buckle 22 to prevent the elastic arm from withdrawing. The barb 221 protrudes from the buckle 22, and the outer end is provided with an inclined surface. The design of the inclined surface allows the elastic arm 13 to be easily inserted into the buckle 22 at the rear of the barb. Figure 2 It can be seen that when the elastic arm 13 and the buckle 22 are assembled, the inclined curved portion 131 at the free end of the elastic arm 13 can interfere with the barb 221 at the outer end of the buckle, preventing the upper cover 1 and the lower cover 3 from separating. When the upper cover 1 and the lower cover 2 need to be separated, the elastic arm 13 can be separated from the buckle 22 by simply pressing the curved portion 131 of the elastic arm inward.

[0038] Example 2

[0039] like Figure 7 The illustrated novel quick-plug elbow high-current cable connector has the same main structure as that of Example 1, except that a rivet portion 34 is provided at one end of the terminal, and the terminal 3 and the cable 4 are connected by riveting.

[0040] Example 3

[0041] like Figure 8 The illustrated novel quick-plug elbow high-current cable connector differs from Example 2 in that the upper cover 1 and lower cover 2 are each formed as two sets of one-piece structures, allowing for connection of two cables. Of course, the number of upper and lower covers can also be three or more sets, depending on design requirements.

[0042] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new type of quick-plug elbow high current cable connector, characterized in that: include: An integrally formed terminal, a cable fixedly connected to the terminal, an upper cover and a lower cover arranged on the outside of the terminal, the upper cover and the lower cover are connected by a snap fastener, and the terminal is arranged in an L shape, one end of the L shape is inserted into the terminal slot of the lower cover, and the other end is connected to the cable.

2. The novel quick-plug elbow high current cable connector according to claim 1 is characterized in that: The connection between the terminal and the cable is riveted or welded.

3. The novel quick-plug elbow high current cable connector according to claim 2, characterized in that: One end of the terminal is provided with an outward-turned flange portion.

4. The novel quick-plug elbow high current cable connector according to claim 1, characterized in that: A first limiting plug-in block protruding outward is provided on the inner side of one end of the upper cover, and a second limiting plug-in block is provided on the other end of the upper cover.

5. The novel quick-plug elbow high current cable connector according to claim 4 is characterized in that: At least one avoidance groove is provided on the end surface of the upper cover, an elastic arm connected to the end surface of the upper cover is provided in the avoidance groove, and an inclined curved portion is provided at the free end of the elastic arm.

6. The novel quick-plug elbow high-current cable connector according to claim 5, characterized in that: An integrally formed terminal slot is provided on one side of the lower cover, and the shape of the terminal slot matches the terminal.

7. The novel quick-plug elbow high current cable connector according to claim 6, characterized in that: A first limiting groove matching the shape of the first limiting plug is provided on the inner side of one end of the lower cover, and a second limiting groove for inserting the second limiting plug is provided on the other end of the lower cover.

8. The novel quick-plug elbow high-current cable connector according to claim 7, characterized in that: A plurality of buckles matching the avoidance grooves are provided on the end surface of the lower cover, and a barb is provided on one side of the buckle to prevent the elastic arm from withdrawing.

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