Crown spring combined joint terminal for new energy storage battery

Abstract

The utility model relates to the field of new energy connectors, in particular to a crown spring combined joint terminal for a new energy storage battery. Comprising a sleeve, a crown spring terminal and a cylindrical metal piece, circular connecting plates are arranged at the upper end and the lower end of the crown spring terminal, a grid bar is arranged between the two connecting plates, the middle of the grid bar is recessed and inclined inwards, a strip-shaped hole is formed in the grid bar, a metal plate is arranged on the cylindrical metal piece, the metal plate is connected with the cylindrical metal piece, and a mounting hole is formed in the metal plate. A rivet hole is formed in the sleeve, a reinforcing piece is arranged on the outer ring of the sleeve, and the metal plate and the sleeve are hot riveted and pressed into a whole through a rivet. The contact connection strength of the crown spring terminal and the external plug is high, the grid bars on the crown spring terminal are tightly attached to the contact pins on the external plug, the contact area is increased, and large current is borne. The metal plate and the sleeve are tightly combined through the hot riveting technology, the contact area of the metal plate and the sleeve is increased, the connection strength is higher, and generated heat is small.

Description

Technical Field

[0001] The utility model relates to the field of new energy connectors, in particular to a crown spring combined connector terminal for new energy storage batteries. Background Art

[0002] Crown spring combination connector terminals are widely used in the battery system of new energy vehicles to achieve electrical connection between batteries and external devices (such as motors, controllers, etc.). Its efficient, stable and reliable electrical transmission performance provides a strong guarantee for the safe and efficient operation of new energy vehicles.

[0003] A combined copper needle for overcurrent is disclosed in the Chinese utility model patent authorization announcement number: CN 219513380 U. It includes a shell and a torsion spring installed inside the shell, the torsion spring includes connecting parts at both ends and a plurality of oblique elastic bars arranged between the two connecting parts and a plurality of bent parts that are integrally arranged at the end of the connecting part and bent outward, and the bent part is in contact with the inner wall of the shell, and a mounting groove is formed between the bent part, the connecting part and the oblique elastic bars, and a metal inner sleeve is clamped in the mounting groove. The device is connected to the mounting hole through a first sleeve. There is a gap between the first sleeve and the mounting hole, and the connection strength is not high. At the same time, when there is a gap at the sleeve connection, the resistance at the first sleeve and the cylindrical metal part will increase, affecting the magnitude of the current. At the same time, when the resistance increases, the heat at the sleeve connection will also increase, causing damage to the metal part.

[0004] Therefore, a crown spring combination connector terminal for new energy batteries is provided, which can tightly connect the crown spring terminal and the cable terminal, and has small contact resistance and small heat generation. Utility Model Content

[0005] The present application provides a crown spring combined connector terminal for a new energy battery, which adopts the following technical solution:

[0006] A crown spring combination joint terminal for a new energy battery comprises a sleeve, a crown spring terminal and a cylindrical metal part. Circular connecting plates are arranged at the upper and lower ends of the crown spring terminal. A grid bar is arranged between the two connecting plates. The middle of the grid bar is concave and inclined inwards. A strip-shaped hole is opened on the grid bar. A metal plate is arranged on the cylindrical metal part. The metal plate is connected to the cylindrical metal part. A mounting hole is arranged on the metal plate. A rivet hole is arranged on the sleeve. A reinforcing part is arranged on the outer ring of the sleeve. A circle of raised blocks is arranged on the sleeve. Groove rivets matched with the raised blocks are arranged on the metal plate. The groove rivets pass through the mounting hole and the rivet hole. The metal plate and the sleeve are hot-riveted into one body by the rivets.

[0007] Optionally, a mounting groove is provided on the inner wall of the sleeve, and the connecting plate on the crown spring terminal is fixedly disposed in the mounting groove inside the sleeve.

[0008] Optionally, insert a red-hot rivet into the rivet hole of the sleeve and pass it through the mounting hole of the metal plate.

[0009] Optionally, the cylindrical metal piece may be crimped to the cable.

[0010] Optionally, the grid bars are elastic and are made of elastic metal material.

[0011] Optionally, the plugging and unplugging times of the crown spring terminal are ≥500 times.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the cable crimping and crown spring terminal are developed in one body, which reduces the size of the traditional connector products by 40%, saves more than 30% of materials, and reduces the production cost. At the same time, the crown spring terminal has a high contact connection strength with the external plug, and the bars on the crown spring terminal fit closely with the pins on the external plug, which increases the contact area and can withstand a large current. The metal plate and the sleeve are tightly combined by the hot riveting technology, which increases the contact area between the metal plate and the sleeve, and the connection strength is higher. When the current flows through, the heat generated is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model viewed from top to bottom.

[0016] Figure 3 It is a structural schematic diagram of the crown spring terminal of the utility model.

[0017] Figure 4 It is a schematic diagram of the utility model of installing a metal plate with a rivet.

[0018] Figure 5 It is a schematic diagram of the rivet of the utility model.

[0019] Figure 6 It is a schematic diagram of the metal plate structure of the utility model.

[0020] Figure 7 It is a schematic diagram of the sleeve structure of the utility model.

[0021] In the figure: 1-sleeve, 2-connecting plate, 3-reinforcement member, 4-metal plate, 5-cylindrical metal part, 6-rivet, 7-grid bar, 8-protrusion block. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The embodiment of the utility model provides a crown spring combined connector terminal for a new energy storage battery.

[0026] Example: Figure 1-7As shown, a crown spring combined connector terminal for a new energy battery includes a sleeve 1 and a crown spring terminal installed inside the sleeve 1. The crown spring terminal is provided with circular connecting plates 2 at the upper and lower ends, and a grid bar 7 is provided between the two connecting plates 2. The middle of the grid bar 7 is sunken and tilted inward, and a strip-shaped hole is provided on the grid bar 7. The grid bar 7 is elastic and is made of elastic metal material. An installation groove is provided on the inner wall of the sleeve 1. The connecting plate 2 on the crown spring terminal is fixedly arranged in the installation groove inside the sleeve 1. The crown spring terminal can be adapted to an external plug. At the same time, the crown spring terminal has high reliability. When inserting an external plug, the insertion force can be relatively gentle. At the same time, the plug also contacts the point of the grid bar 7 on the crown spring terminal at the recessed part. The grid bar 7 is deformed according to the style of the plug. The grid bar 7 is closely attached to the pin on the plug, which increases the contact surface, reduces the contact surface resistance, and increases the current. At the same time, the grid bar 7 can also better fix and support the plug.

[0027] A metal plate 4 is provided on the cylindrical metal part 5, and the metal plate 4 is connected to the cylindrical metal part 5. A mounting hole is provided on the metal plate 4. A reinforcing member 3 is provided on the outer ring of the sleeve 1, and the reinforcing member 3 is sleeved and fixed on the sleeve 1, and is fixed on the metal plate 4 together with the sleeve 1. A circle of raised blocks 8 is provided on the sleeve 1, and a groove matching the raised blocks 8 is provided on the metal plate 4. The sleeve 1 is provided with a rivet hole. When fixing, a red-hot rivet 6 is inserted into the rivet hole of the sleeve 1 and passed through the mounting hole of the metal plate 4. The specific structure is as follows: Figure 4 As shown, the hot riveting technology is used to rivet the rivet 6 that has been inserted to rivet the sleeve 1 and the metal plate 4 into one. When in use, align the raised block 8 on the sleeve 1 with the groove of the metal plate 4 and clamp it. The cylindrical metal part 5 can be crimped with the cable, and the cylindrical metal part 5 and the number plate 4 form a whole. The reinforcement 3 plays a role in protecting the sleeve 1 during the hot riveting process, because pressure needs to be applied to the rivet 6 on both sides during the hot riveting process. At this time, the rivet inside the sleeve 1 will be deformed under the action of pressure. The reinforcement 3 can limit part of the sleeve 1 during this process to prevent the sleeve 1 from deforming.

[0028] The cable crimping and crown spring terminal are integrated and developed, which reduces the size of traditional connector products by 40%, saves more than 30% of materials, and reduces production costs. At the same time, the plug-in and pull-out times of the crown spring terminal are ≥500 times.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view. The scope of the present invention is defined by the appended claims, rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A crown spring combined connector terminal for new energy batteries, characterized in that: The invention comprises a sleeve (1), a crown spring terminal, and a cylindrical metal part (5). The crown spring terminal is provided with circular connecting plates (2) at the upper and lower ends. A grid bar (7) is provided between the two connecting plates (2). The grid bar (7) is recessed and tilted inwards in the middle. The grid bar (7) is provided with a strip-shaped hole. A metal plate (4) is provided on the cylindrical metal part (5). The metal plate (4) is connected to the cylindrical metal part (5). A mounting hole is provided on the metal plate (4). A rivet hole is provided on the sleeve (1). A reinforcing member (3) is provided on the outer ring of the sleeve (1). A circle of raised blocks (8) is provided on the sleeve (1). A groove matching the raised blocks (8) is provided on the metal plate (4). The rivet (6) passes through the mounting hole and the rivet hole. The metal plate (4) and the sleeve (1) are hot-riveted and pressed into one piece.

2. A crown spring combined connector terminal for a new energy battery according to claim 1, characterized in that: An installation groove is provided on the inner wall of the sleeve (1), and the connecting plate (2) on the crown spring terminal is fixedly arranged in the installation groove inside the sleeve (1).

3. The crown spring combined connector terminal for new energy storage battery according to claim 1, characterized in that: Insert the red-hot rivet (6) into the rivet hole of the sleeve (1) and pass it through the mounting hole of the metal plate (4).

4. The crown spring combined connector terminal for new energy storage battery according to claim 1, characterized in that: The cylindrical metal part (5) can be crimped with the cable.

5. The crown spring combined connector terminal for new energy storage battery according to claim 1, characterized in that: The grid bars (7) are elastic and are made of elastic metal material.

6. The crown spring combined connector terminal for new energy storage battery according to claim 1, characterized in that: The plugging and unplugging times of the crown spring terminal are ≥500 times.

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