Puncture type voltage acquisition terminal

Abstract

The utility model relates to the technical field of voltage acquisition terminals, and discloses a puncture type voltage acquisition terminal comprising a terminal main body, one side of the terminal main body connected with a flat wire is provided with two rows of crimping assemblies, the two rows of crimping assemblies are arranged along the width direction of the terminal main body, and the area between the two rows of crimping assemblies is a conductor passing area. Each row of crimping assemblies comprises a plurality of puncture metal sheets, the puncture metal sheets penetrate through an insulating layer of the flat wire, the ends of the oppositely arranged puncture metal sheets are bent towards a conductor passing area to form a curled shape, and the flat wire is pressed on the terminal main body by the ends, so that the conductor of the flat wire is in contact with the terminal main body; the puncture type voltage sampling terminal provided by the utility model solves the problems that the heating balance is worse, pseudo soldering is easy to form, and the product quality is influenced when a flat wire and a terminal are welded by adopting reflow soldering in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage-collecting terminals, in particular to a puncture-type voltage-collecting terminal. Background Art

[0002] The market mainly uses four methods to make CCS wiring harnesses: FPC (FDC), PCB, electronic wiring harness, and FFC. Among them, FPC (FDC), PCB and FFC can all make wiring harnesses with fuses. FPC (FDC), PCB and FFC are soldered with nickel sheets or other wires through reflow soldering, and then these nickel sheets or other wires are used to collect battery voltage or temperature.

[0003] CCS, which stands for Cells Contact System in English, is called integrated busbar or wiring harness board integration in Chinese. CCS products are an integrated solution consisting of Harness (PCB, FPC or FIC--signal line), plastic structural parts (or insulation layer), copper and aluminum busbars (power transmission), etc. The main functions of CCS are battery power transmission, voltage monitoring, temperature monitoring, battery cell protection, etc. Reflow soldering is a soldering process that achieves soldering by bringing the temperature to every corner of the product through high-temperature gas to melt the solder. As the length of the product becomes longer and longer, the heat balance becomes worse when reflow soldering is used, resulting in an increased risk of cold solder joints and false solder joints, and cold solder joints and false solder joints are difficult to detect and are highly concealed. Therefore, the existing technology has the problem that the heat balance is worse when reflow soldering flat wires and terminals, which is prone to cold solder joints and false solder joints, affecting product quality. Utility Model Content

[0004] The purpose of the utility model is to provide a puncture type voltage collecting terminal to solve at least one of the above problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A piercing type pressure terminal includes a terminal body, and two rows of crimping assemblies are provided on one side of the terminal body connected to the flat wire. The two rows of crimping assemblies are arranged along the width direction of the terminal body, and the area between the two rows of crimping assemblies is the conductor passing area. Each row of crimping assemblies includes multiple piercing metal sheets, and the piercing metal sheets pass through the insulating layer of the flat wire. The ends of the relatively arranged piercing metal sheets are bent into a curled shape toward the conductor passing area. The ends press the flat wire against the terminal body so that the conductor of the flat wire contacts the terminal body.

[0007] In this technical solution, two rows of crimping assemblies are provided on one side where the terminal body is connected to the flat wire. The two rows of crimping assemblies are arranged along the width direction of the terminal body. The area between the two rows of crimping assemblies is the conductor passing area. When installing the terminal body, the positions of the two rows of crimping assemblies are adjusted so that the two rows of crimping assemblies are respectively located on both sides of the conductor of the flat wire, that is, the conductor is located in the conductor passing area between the two rows of crimping assemblies. Then, pressure is applied so that the multiple piercing metal sheets located on both sides of the conductor pierce the insulation layer of the flat wire. The ends of the relatively arranged piercing metal sheets are bent into a curled shape toward the conductor passing area. The terminal body and the conductor can be physically crimped through the curled ends, and the other end of the terminal body is connected to the aluminum bar. In this technical solution, when using FIC (Fuse Inside Cable) as a flat wire, there is no need to connect a wiring harness with a fuse. Most importantly, this technical solution does not require welding and there is no risk of false solder joints. The use of physical crimping has a stable process, simple equipment, and no need for heating. Because no heating is required, the CCS collection harness can use plastic films that do not require too high a temperature resistance. For example, instead of using PI film, PET, PO and other films can be used.

[0008] Furthermore, in order to achieve a more stable physical crimping effect, the piercing metal sheets between the two rows of crimping components are staggered.

[0009] Furthermore, in order to select the shape of the specific terminal body and the distribution structure of the piercing metal sheet according to needs, the terminal body includes a long strip terminal body, a T-type terminal body and an OT-type terminal body, and the T-type terminal body and the OT-type terminal body both include symmetrically arranged horizontal extension parts, and two rows of crimping components are provided on the horizontal extension parts along the length direction of the horizontal extension parts.

[0010] The beneficial effects of the present invention are as follows: In this technical solution, since two rows of crimping assemblies are provided on one side where the terminal body is connected to the flat wire, the two rows of crimping assemblies are arranged along the width direction of the terminal body, and the area between the two rows of crimping assemblies is the conductor passing area, when installing the terminal body, the positions of the two rows of crimping assemblies are adjusted so that the two rows of crimping assemblies are respectively located on both sides of the conductor of the flat wire, that is, the conductor is located in the conductor passing area between the two rows of crimping assemblies, and then pressure is applied so that the multiple piercing metal sheets located on both sides of the conductor pierce the insulation layer of the flat wire, and the ends of the relatively arranged piercing metal sheets are bent into a curled shape toward the conductor passing area, so that the terminal body and the conductor can be physically crimped through the curled ends, and at the same time, the other end of the terminal body is connected to the aluminum bar. In this technical solution, when using FIC (Fuse Inside Cable) as a flat wire, there is no need to connect a wiring harness with a fuse. Most importantly, this technical solution does not require welding and there is no risk of false solder joints. Using physical crimping, the process is stable, the equipment is simple, and no heating is required. Because no heating is required, the CCS collection harness can use plastic films that do not require too high a temperature resistance. For example, instead of using PI film, PET, PO and other films can be used. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a perspective structural diagram of the utility model in a top-down state connected to a flat wire;

[0012] Figure 2 This is a partial perspective structural diagram of a top view of the connection between the T-shaped terminal and the flat wire in the present invention;

[0013] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0014] Figure 4 This is a partial perspective structural diagram of the top view of the long strip terminal and the flat wire in the utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the long strip terminal of the utility model;

[0016] Figure 6 This is a schematic diagram of the structure of the T-type terminal in the present utility model;

[0017] Figure 7 It is a structural diagram of the OT type terminal in the utility model.

[0018] In the figure: terminal body 1; flat wire 2; insulation layer 2.1; conductor 2.2; crimping assembly 3; piercing metal sheet 3.1; end 3.2; conductor passing area 4. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0020] Example 1:

[0021] like Figure 1-Figure 7 As shown, this embodiment provides a piercing type pressure terminal, including a terminal body 1, and two rows of crimping assemblies 3 are provided on one side where the terminal body 1 is connected to the flat wire 2. The two rows of crimping assemblies 3 are arranged along the width direction of the terminal body 1, and the area between the two rows of crimping assemblies 3 is the conductor passing area 4. Each row of crimping assemblies 3 includes a plurality of piercing metal sheets 3.1. The piercing metal sheets 3.1 pass through the insulating layer 2.1 of the flat wire 2. The ends 3.2 of the relatively arranged piercing metal sheets 3.1 are all bent in a curled shape toward the conductor passing area 4. The ends 3.2 press the flat wire 2 against the terminal body 1 so that the conductor 2.2 of the flat wire 2 contacts the terminal body 1.

[0022] In this technical solution, two rows of crimping assemblies 3 are provided on one side of the terminal body 1 where it connects to the flat wire 2. The two rows of crimping assemblies 3 are arranged along the width of the terminal body 1, and the area between the two rows of crimping assemblies 3 is the conductor passing area 4. When installing the terminal body 1, the positions of the two rows of crimping assemblies 3 are adjusted so that the two rows of crimping assemblies 3 are located on either side of the conductor 2.2 of the flat wire 2, that is, the conductor 2.2 is located in the conductor passing area 4 between the two rows of crimping assemblies 3. Then, pressure is applied to cause the multiple piercing metal sheets 3.1 located on both sides of the conductor 2.2 to pierce the insulation layer 2.1 of the flat wire 2. The ends 3.2 of the oppositely arranged piercing metal sheets 3.1 are bent toward the conductor passing area 4 to form a curled shape. This allows the terminal body 1 and the conductor 2.2 to be physically crimped together through the curled ends 3.2, while the other end of the terminal body 1 is connected to the aluminum busbar (not shown in the figure). In this technical solution, when using an FIC (Fuse Inside Cable) as the flat wire 2, there is no need to connect a wiring harness with a fuse. Most importantly, this solution eliminates the need for soldering, eliminating the risk of false or faulty solder joints. Using physical crimping, the process is stable, the equipment is simple, and no heating is required. Because no heating is required, the CCS wiring harness can utilize less heat-resistant plastic films. For example, PET, PO, and other films can be used instead of PI film.

[0023] Example 2:

[0024] This embodiment is optimized based on the above embodiment 1.

[0025] In order to achieve a more stable physical crimping effect, the piercing metal sheets 3 . 1 between the two rows of crimping assemblies 3 are staggered.

[0026] Example 3:

[0027] This embodiment is optimized based on the above embodiment 1.

[0028] In order to select the specific shape of the terminal body 1 and the distribution structure of the piercing metal sheet 3.1 according to the needs, the terminal body 1 includes a long strip terminal body 1 (such as Figure 5 As shown), T-type terminal body 1 (as Figure 6 As shown) and OT type terminal body 1 (as Figure 7 As shown), the T-type terminal body 1 and the OT-type terminal body 1 both include symmetrically arranged horizontal extensions, and two rows of crimping assemblies 3 are provided on the horizontal extensions along the length direction of the horizontal extensions.

[0029] During specific production, a device is used to physically crimp the terminal body 1 and the flat wire 2 together to detect the battery voltage or temperature.

[0030] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A puncture-type voltage terminal, characterized in that: It includes a terminal body, and two rows of crimping assemblies are provided on one side of the terminal body connected to the flat wire. The two rows of crimping assemblies are arranged along the width direction of the terminal body. The area between the two rows of crimping assemblies is the conductor passing area. Each row of crimping assemblies includes multiple piercing metal sheets, and the piercing metal sheets pass through the insulating layer of the flat wire. The ends of the relatively arranged piercing metal sheets are bent into a curled shape toward the conductor passing area. The ends press the flat wire against the terminal body so that the conductor of the flat wire contacts the terminal body.

2. The piercing type voltage terminal according to claim 1, characterized in that: The piercing metal sheets between the two rows of crimped components are staggered.

3. The piercing type voltage terminal according to claim 1, characterized in that: The terminal body includes a long strip terminal body, a T-type terminal body and an OT-type terminal body. The T-type terminal body and the OT-type terminal body both include symmetrically arranged horizontal extensions, and two rows of crimping assemblies are provided on the horizontal extensions along the length direction of the horizontal extensions.

Images