Rivet for connecting battery tray and energy storage cabinet body for new energy automobile

Abstract

The utility model discloses a rivet for connecting a battery tray and an energy storage cabinet for a new energy automobile, which comprises a slender rivet core and a hollow rivet body attached to the rivet core, the rivet core comprises a rivet head and a rod part, the rivet body comprises a bulged section, a workpiece contact section and a flange, two ends of the bulged section are provided with double-slope clamping marks, and the flange is provided with double-slope clamping marks. And a double-step locking structure is arranged at the joint of the rod part and the nail head. According to the utility model, the length of the clamping mark is widened, the clamping mark is designed into double slopes, the riveting range is enlarged, most of metal plates can be riveted by using rivets with one specification, and the phenomena of misuse caused by various specifications and increase of rework cost and uncontrollable cost are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a rivet for connecting a battery tray and an energy storage cabinet for a new energy vehicle. Background Art

[0002] As the country vigorously promotes the development of new energy vehicles, there are more and more new energy vehicles. Major vehicle manufacturers have established their own battery factories. As the power source of new energy vehicles, the safety of power battery packs is particularly important, so battery trays are needed to carry power battery packs. At present, conventional rivets are used to connect battery trays and energy storage cabinets. The main problems are as follows: ① The rivet clamp design is a circle in the middle, with a short distance to the bevel and a narrow riveting range. When the same sheet metal has different riveting thicknesses, two rivet specifications are required to complete different riveting thicknesses; ② When two rivet specifications are selected, the stainless steel surface treatment is not easy to color, and the specifications cannot be effectively distinguished. Operator errors often lead to the misuse of rivet specifications, resulting in riveting failure, resulting in rework and quality abnormality outflow risks. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to overcome the defects of the above-mentioned prior art and provide a rivet for connecting a battery tray for new energy vehicles with an energy storage cabinet, which has a large riveting range and excellent product performance.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a rivet for connecting a battery tray for new energy vehicles with an energy storage cabinet, comprising a slender nail core and a hollow rivet body attached to the nail core, the nail core comprising a nail head and a rod portion, the rivet body comprising a drum section, a workpiece contact section and a flange, double slope clamps are arranged at both ends of the drum section, and a double-step locking structure is arranged at the connection between the rod portion and the nail head.

[0005] Furthermore, the length L of the double slope clamp is 8.1-8.5 mm to increase the riveting range.

[0006] Furthermore, the riveting range of the rivet is 3.2 to 5.6 mm.

[0007] Furthermore, the nail core is provided with an axial anti-slip groove below the double steps to prevent the nail head from rotating after riveting.

[0008] Furthermore, a chamfered structure is provided at the connection between the workpiece contacting section and the flange, and the maximum chamfered radius is 0.3 mm.

[0009] Furthermore, the included angle θ of the oblique lines on both sides of the nail head is 75° to 90°.

[0010] The utility model discloses a rivet for connecting a battery tray for a new energy vehicle with an energy storage cabinet, and its beneficial effects are:

[0011] 1. Widen the length of the clamping mark and design it into a double slope to increase the riveting range. Most sheet metals can be riveted with one specification of rivet, eliminating the misuse caused by various specifications, resulting in increased rework costs and uncontrollable costs;

[0012] 2. Reduce inventory, reduce costs, and ensure production progress;

[0013] 3. The nail core is designed with double-step mechanical locking, the nail head is locked more firmly and has excellent waterproof ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the rivet of the utility model and the workpiece after riveting;

[0018] In the figure: 1. rivet body, 11. drum section, 12. workpiece contact section, 13. flange, 2. nail core, 21. nail head, 22. rod, 3. anti-slip groove, 4. double-step locking structure, 5. double slope clamping print. DETAILED DESCRIPTION

[0019] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0020] like Figure 1 , 2 A rivet for connecting a battery tray for a new energy vehicle with an energy storage cabinet is shown, comprising a slender nail core 2 and a hollow rivet body 1 attached to the nail core 2, the nail core 2 comprising a nail head 21 and a rod 22, the rivet body 1 comprising a drum section 11, a workpiece contact section 12 and a flange 13, double slope clamps 5 are arranged at both ends of the drum section 11, and a double-step locking structure 4 is arranged at the connection between the rod 22 and the nail head 21.

[0021] The nail core 2 is provided with an axial anti-slip groove 3 below the double-step locking structure 4 to prevent the nail head from rotating after riveting. A chamfered structure is provided at the connection between the contact workpiece section 12 and the flange 13, and the maximum chamfer radius is 0.3mm. The angle θ of the oblique lines on both sides of the nail head 21 is 75°~90°.

[0022] The length L of the double slope clamping stamp 5 is 8.1-8.5 mm to increase the riveting range, and the riveting range of the rivet is 3.2-5.6 mm.

[0023] like Figure 3 As shown, the riveting thickness corresponding to different bulging diameters D and bulging heights H during implementation is shown in the following table:

[0024] Drum diameter D / mm Drum height H / mm Riveting thickness / mm 8.0 6.0 3.2 7.8 5.7 4.2 7.0 5.2 5.6

[0025] The length of the clamp is widened and designed into a double slope. The length of the drum section is reduced, the drum diameter D and the drum height H are reduced, and the riveting range is expanded. Most sheet metals can be riveted with one specification of rivet, eliminating the misuse caused by various specifications, resulting in rework costs and increased uncontrollable costs.

[0026] When the utility model is implemented, the following technical conditions are met:

[0027] 1. Appearance:

[0028] There are no burrs or harmful defects on the surface, and the head and rod shape are complete. When the rivet is visually inspected at a magnification of 5 times after riveting, there should be no visible signs of cracking.

[0029] 2. Material:

[0030] Rivet body: 304 stainless steel

[0031] Nail core: 304 stainless steel

[0032] 3. Mechanical properties:

[0033] Tensile strength: 4900N

[0034] Shear resistance: 6800N

[0035] 4. Surface treatment: white wash and passivation, no white rust in 240H, no red rust in 900H.

[0036] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A rivet for connecting a battery tray and an energy storage cabinet for a new energy vehicle, characterized by: The invention comprises a slender nail core (2) and a hollow rivet body (1) attached to the nail core (2); the nail core (2) comprises a nail head (21) and a rod (22); the rivet body (1) comprises a drum section (11), a workpiece contact section (12) and a flange (13); double slope clamps (5) are arranged at both ends of the drum section (11); and a double-step locking structure (4) is arranged at the connection between the rod (22) and the nail head (21).

2. The rivet for connecting a battery tray for a new energy vehicle with an energy storage cabinet according to claim 1 is characterized in that: The length L of the double slope clamping stamp (5) is 8.1-8.5 mm, so as to increase the riveting range.

3. The rivet for connecting a battery tray for a new energy vehicle with an energy storage cabinet according to claim 1 is characterized in that: The riveting range of the rivet is 3.2 to 5.6 mm.

4. The rivet for connecting a battery tray for a new energy vehicle with an energy storage cabinet according to claim 1 is characterized in that: The nail core (2) is provided with an axial anti-slip groove (3) below the double-step locking structure (4) to prevent the nail head from rotating after riveting.

5. The rivet for connecting a battery tray for a new energy vehicle with an energy storage cabinet according to claim 1 is characterized in that: A rounded structure is provided at the connection between the workpiece contacting section (12) and the flange (13), and the maximum rounded radius is 0.3 mm.

6. The rivet for connecting a battery tray for a new energy vehicle with an energy storage cabinet according to claim 1 is characterized in that: The included angle θ of the oblique lines on both sides of the nail head (21) is 75° to 90°.

Images