Flexible flat cable, acquisition busbar and energy storage battery

Abstract

The utility model discloses a flexible flat cable, an acquisition busbar and an energy storage battery. The flexible flat cable comprises a cable body and a connecting terminal. The cable body comprises a conductor and an insulating layer, the end part of the conductor is provided with an electric connection section, the insulating layer coats the surface of the conductor, one side of the end part of the insulating layer is provided with a punched hole for exposing the electric connection section, and the punched hole and the electric connection section are correspondingly arranged; the connecting terminal is a metal terminal, and the connecting terminal comprises a connecting plate and a riveting end connected with the connecting plate; the end portion of the cable body extends into the riveting end, the riveting end presses and rivets the end portion of the cable body, and a part of the structure of the riveting end penetrates through the punching pressing and riveting electric connection section. The cable body extends into the connecting terminal in a complete state, the connecting terminal is connected with the cable body in a pressing rivet mode, the cross section of the cable body is complete and not prone to breakage, connection between the cable body and the connecting terminal is firm and stable, large-area stable electric connection can be kept, and good electric connection stability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy batteries, and in particular to a flexible flat cable, a collection busbar and an energy storage battery. Background Art

[0002] In order to improve the automated management, monitoring, and safety of new energy batteries, the collection busbar has become an essential structure for new energy batteries. The main structure of the flexible flat cable is the collection busbar and the battery pack. The battery pack includes multiple cells distributed in multiple arrays. The collection busbar covers the top of the battery pack. The collection busbar is equipped with collection lines, aluminum bars, and sensors.

[0003] Among them, the acquisition line is a flexible flat cable, and the end of the flexible flat cable is connected to the crimping terminal, that is, the crimping terminal adopts a piercing crimping process to connect the end of the flexible flat cable, that is, the crimping terminal pierces the insulation layer and connects to the conductor. However, this terminal connection method will form holes in the conductor, reduce the strength of the conductor itself, and make the conductor easy to break. In addition, the piercing crimping has a small contact area between the conductor and the crimping terminal, and the conductor and the crimping terminal are in poor contact, which causes great production losses. Utility Model Content

[0004] In order to solve the technical problems of easy breakage and poor contact of conductors in the prior art, one of the purposes of the utility model is to provide a flexible flat cable, a collection busbar and an energy storage battery, which have high cable strength and conductive stability.

[0005] One of the purposes of the utility model is achieved by the following technical solution:

[0006] A flexible flat cable, comprising a cable body and a connecting terminal;

[0007] The cable body comprises a conductor and an insulating layer, an electrical connection section is provided at the end of the conductor, the insulating layer is coated on the surface of the conductor, a punching hole for exposing the electrical connection section is provided on one side of the end of the insulating layer, and the punching hole is arranged corresponding to the electrical connection section;

[0008] The connecting terminal is a metal terminal, comprising a connecting plate and a riveted end connected to the connecting plate;

[0009] The end of the cable body extends into the riveting end, the riveting end rivets the end of the cable body, and a part of the structure of the riveting end passes through the punching hole to rivet the electrical connection section.

[0010] Optionally, the electrical connection section of the conductor is bent, and bent in a direction away from the punching hole.

[0011] Optionally, the riveted end includes a fixing section and an electrical connection section;

[0012] The electrical connection section is located between the fixing section and the connecting plate, and the electrical connection section presses against the electrical connection section;

[0013] The fixing section is connected to the end of the cable body by riveting.

[0014] Optionally, fixing feet are provided on both sides of the fixing section, and the fixing feet are bent to press against the cable body.

[0015] Optionally, electrical pins are provided on both sides of the electrical connection section, and the electrical pins abut against the electrical connection section.

[0016] Optionally, the fixing section is in a sleeve shape.

[0017] Optionally, the electrical connection section is in a sleeve shape.

[0018] One of the purposes of the utility model is achieved by the following technical solution:

[0019] A flexible flat cable, comprising a cable body and a connecting terminal;

[0020] The cable body comprises a conductor and an insulating layer, the end of the conductor is provided with two electrical connection sections, the insulating layer is coated on the surface of the conductor, one side of the end of the insulating layer is provided with two punching holes, and the two punching holes are respectively arranged in one-to-one correspondence with the two electrical connection sections to expose the corresponding electrical connection sections;

[0021] The end of the conductor is bent, the bending position is the middle position of the two electrical connection sections, and the two punching holes are opposite to each other;

[0022] The connecting terminal comprises a connecting plate and a riveted end connected to the connecting plate, the riveted end comprises a fixing section and an electrical connection section, and the fixing section is located between the electrical connection section and the connecting plate;

[0023] The end of the cable body extends into the riveted end, the fixing section is riveted to the bent portion of the end of the cable body, and the electrical connection section passes through the punching hole and presses against the electrical connection section.

[0024] One of the purposes of the utility model is achieved by the following technical solution:

[0025] A collection busbar comprises a bearing plate and the flexible flat cable, wherein the flexible flat cable is arranged on the bearing plate.

[0026] One of the purposes of the utility model is achieved by the following technical solution:

[0027] An energy storage battery comprises a battery pack and the energy collection busbar.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] During assembly, the end of the cable body extends into the riveted end, and the riveted end is riveted to the end of the cable body, while a portion of the structure on the riveted end passes through the punching hole to rivet the electrical connection section. In this embodiment, the cable body is fixed by riveting the riveted end, and in addition, a portion of the structure of the riveted end is used so that the portion of the structure passes through the punching hole to abut the electrical connection section. In this embodiment, the cable body extends into the connecting terminal in a complete state, and the connecting terminal is connected to the cable body in a riveted form. The cross-section of the cable body is complete and not easy to break, and has a high cable strength. The connection between the cable body and the connecting terminal is firm and stable. At the same time, the cable body is electrically connected to the connecting terminal in the electrical connection section, which can maintain a large area of ​​stable electrical connection and has good electrical connection stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the flexible flat cable of the utility model;

[0031] Figure 2 It is a top view schematic diagram of the flexible flat cable of the utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the connection terminal in the flexible flat cable of the present invention;

[0033] Figure 4 It is a structural schematic diagram of a cable body in a flexible flat cable of the utility model and a corresponding cross-sectional view;

[0034] Figure 5 It is a structural schematic diagram of the cable body in a bent state in the flexible flat cable of the utility model and a corresponding cross-sectional view;

[0035] Figure 6 A structural schematic diagram and a corresponding cross-sectional view of a cable body in another embodiment of the flexible flat cable of the present invention;

[0036] Figure 7 It is a structural schematic diagram of a cable body in a bent state and a corresponding cross-sectional view in another embodiment of the flexible flat cable of the present invention.

[0037] In the figure:

[0038] 1. Cable body; 11. Conductor; 111. Electrical connection section; 12. Insulation layer; 121. Punching hole;

[0039] 2. Connecting terminal; 21. Connecting plate; 22. Riveted end; 221. Fixing section; 2211. Fixing foot; 222. Electrical connection section; 2221. Electrical connection foot. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0042] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0043] like Figure 1-5 An energy storage battery is shown, the energy storage battery includes a battery pack and a collection busbar. The collection busbar includes a bearing plate, a flexible flat cable, an aluminum busbar and a sensor, etc. The flexible flat cable, the aluminum busbar and the sensor are arranged on the bearing plate.

[0044] Among them, Figure 4 , Figure 5 The flexible flat cable shown includes a cable body 1 and a connection terminal 2. Specifically, the cable body 1 includes a conductor 11 and an insulating layer 12, an end of the conductor 11 is provided with an electrical connection section 111, the insulating layer 12 is coated on the surface of the conductor 11, and one side of the end of the insulating layer 12 is provided with a punching hole 121 for exposing the electrical connection section 111, and the punching hole 121 is arranged corresponding to the electrical connection section 111. The connection terminal 2 is a metal terminal, and the connection terminal 2 includes a connection plate 21 and a riveted end 22 connected to the connection plate 21.

[0045] When assembling, Figure 1 , Figure 2As shown, the end of the cable body 1 extends into the riveting end 22, and the riveting end 22 rivets the end of the cable body 1, and at the same time, a part of the structure on the riveting end 22 passes through the punching hole 121 to rivet the electrical connection section 111. In this embodiment, the cable body 1 is fixed by riveting the riveting end 22, and in addition, a part of the structure of the riveting end 22 is used to make the part pass through the punching hole 121 to abut the electrical connection section 111. In this embodiment, the cable body 1 extends into the connecting terminal 2 in a complete state, and the connecting terminal 2 is connected to the cable body 1 in a riveted form. The cross-section of the cable body 1 is complete and not easy to break, and has a high cable strength. The connection between the cable body 1 and the connecting terminal 2 is firm and stable. At the same time, the cable body 1 is electrically connected to the connecting terminal 2 in the electrical connection section 111, which can maintain a large area of ​​stable electrical connection and has good electrical connection stability.

[0046] In some embodiments of the conductor 11, such as Figure 5 As shown, the electrical connection section 111 of the conductor 11 is bent and bent in a direction away from the punch hole 121. The electrical connection section 111 is bent in a direction away from the punch hole 121, so that the punch hole 121 faces outward, and the electrical connection section 111 is exposed on both sides instead of on one side, increasing the exposure direction. After the cable body 1 is inserted into the riveted end 22, the riveted end 22 can be electrically connected to the cable body 1 from both sides of the cable body 1, which increases the area of ​​electrical connection and improves the stability of electrical connection in the case of a smaller length.

[0047] In some embodiments of the riveted end 22, such as Figures 1 to 3 As shown, the riveted end 22 includes a fixed section 221 and an electrical connection section 222. The electrical connection section 222 is located between the fixed section 221 and the connecting plate 21, and the electrical connection section 222 presses against the electrical connection section 111. The fixed section 221 is connected to the end of the cable body 1 by riveting. The riveted end 22 includes two sections, namely the fixed section 221 and the electrical connection section 222. The end of the cable body 1 is riveted by the fixed section 221, and the electrical connection section 111 at the end of the cable body 1 is electrically connected by the electrical connection section 222. The fixed section 221 is riveted to the conductor 11 covered by the insulation layer 12, and the insulation layer 12 can effectively protect the conductor 11, so that the fixed section 221 can apply more riveting force, thereby improving the connection firmness and stability.

[0048] Furthermore, if Figures 1 to 3 As shown, fixing legs 2211 are disposed on both sides of the fixing section 221 , and the fixing legs 2211 are bent to press against the cable body 1 .

[0049] Furthermore, if Figures 1 to 3 As shown, electrical pins 2221 are disposed on two sides of the electrical connection section 222 , and the electrical pins 2221 abut against the electrical connection section 111 .

[0050] In addition to the fixing pin 2211, in some other embodiments of the fixing section 221, the fixing section 221 is sleeve-shaped. In addition to the electrical pin 2221, in some other embodiments of the electrical connection section 222, the electrical connection section 222 is sleeve-shaped. The fixing section 221 and the electrical connection section 222 are sleeve-shaped. During the riveting process, it is only necessary to insert the end of the cable body 1 into the electrical connection section 222, and then riveting the two sleeves, so that the cable body 1 and the connection terminal 2 are firmly and stably connected.

[0051] In other embodiments of some flexible flat cables, the flexible flat cable includes a cable body 1 and a connecting terminal 2 .

[0052] For details, please refer to the attached Figure 6 , Attachment Figure 7 The cable body 1 includes a conductor 11 and an insulating layer 12. Two electrical connection sections 111 are provided at the end of the conductor 11. The insulating layer 12 is coated on the surface of the conductor 11. Two punching holes 121 are provided on one side of the end of the insulating layer 12. The two punching holes 121 are respectively arranged in one-to-one correspondence with the two electrical connection sections 111 to expose the corresponding electrical connection sections 111.

[0053] In this embodiment, the conductor 11 is also bent at the end, and the bending position is the middle position of the two electrical connection sections 111, and the two punching holes 121 are opposite to each other, so that the punching holes 121 are exposed and the corresponding electrical connection sections 111 are also exposed. After bending, the outer section of the electrical connection section 111 still has a section of the cable body 1 with a completely covered wire.

[0054] The connecting terminal 2 includes a connecting plate 21 and a riveted end 22 connected to the connecting plate 21 . The riveted end 22 includes a fixed section 221 and an electrical connection section 222 . The fixed section 221 is located between the electrical connection section 222 and the connecting plate 21 .

[0055] The end of the cable body 1 extends into the riveted end 22 , the fixed section 221 is riveted to the bent portion of the end of the cable body 1 , and the electrical connection section 222 passes through the punching hole 121 and presses against the electrical connection section 111 .

[0056] The cable body 1 is fixed by riveting through the fixing section 221 of the riveting end 22, and the electrical connection section 222 of the riveting end 22 passes through the punching hole 121 to abut against the electrical connection section 111. In this embodiment, the cable body 1 is inserted into the connecting terminal 2 in a complete state, and the connecting terminal 2 is connected to the cable body 1 in a riveted form. The cross section of the cable body 1 is complete and not easy to break, and has a high cable strength. The connection between the cable body 1 and the connecting terminal 2 is firm and stable. At the same time, the cable body 1 is electrically connected to the connecting terminal 2 through the electrical connection section 111, which can maintain a large area of ​​stable electrical connection and has good electrical connection stability.

[0057] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A flexible flat cable, characterized in that: The flexible flat cable comprises a cable body and a connecting terminal; The cable body comprises a conductor and an insulating layer, an electrical connection section is provided at the end of the conductor, the insulating layer is coated on the surface of the conductor, a punching hole for exposing the electrical connection section is provided on one side of the end of the insulating layer, and the punching hole is arranged corresponding to the electrical connection section; The connecting terminal is a metal terminal, comprising a connecting plate and a riveted end connected to the connecting plate; The end of the cable body extends into the riveting end, the riveting end rivets the end of the cable body, and a part of the structure of the riveting end passes through the punching hole to rivet the electrical connection section.

2. The flexible flat cable according to claim 1, characterized in that The electrical connection section of the conductor is bent and bent in a direction away from the punching hole.

3. The flexible flat cable according to claim 1, wherein: The riveted end includes a fixing section and an electrical connection section; The electrical connection section is located between the fixing section and the connecting plate, and the electrical connection section presses against the electrical connection section; The fixing section is connected to the end of the cable body by riveting.

4. The flexible flat cable according to claim 3, characterized in that: Fixed legs are arranged on both sides of the fixed section, and the fixed legs are bent to press against the cable body.

5. The flexible flat cable according to claim 3, characterized in that: Electrical pins are arranged on two sides of the electrical connection section, and the electrical pins abut against the electrical connection section.

6. The flexible flat cable according to claim 3, characterized in that: The fixing section is in a sleeve shape.

7. The flexible flat cable according to claim 3, characterized in that: The electrical connection section is in a sleeve shape.

8. A flexible flat cable, characterized in that: The flexible flat cable comprises a cable body and a connecting terminal; The cable body comprises a conductor and an insulating layer, the end of the conductor is provided with two electrical connection sections, the insulating layer is coated on the surface of the conductor, one side of the end of the insulating layer is provided with two punching holes, and the two punching holes are respectively arranged in one-to-one correspondence with the two electrical connection sections to expose the corresponding electrical connection sections; The end of the conductor is bent, the bending position is the middle position of the two electrical connection sections, and the two punching holes are opposite to each other; The connecting terminal comprises a connecting plate and a riveted end connected to the connecting plate, the riveted end comprises a fixing section and an electrical connection section, and the fixing section is located between the electrical connection section and the connecting plate; The end of the cable body extends into the riveted end, the fixing section is riveted to the bent portion of the end of the cable body, and the electrical connection section passes through the punching hole and presses against the electrical connection section.

9. A collection busbar, characterized in that: The acquisition busbar comprises a bearing plate and the flexible flat cable according to any one of claims 1 to 8, and the flexible flat cable is arranged on the bearing plate.

10. An energy storage battery, characterized in that: The energy storage battery includes a battery pack and the collection busbar described in claim 9.

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