Composite material pultrusion battery cell pressing strip
By using pultruded cell strips made of fiber composite materials, the problems of poor conductivity and corrosion resistance of aluminum profile strips have been solved, achieving good insulation, low density, high strength, saving battery pack space and increasing energy density.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-20
AI Technical Summary
Existing aluminum profile strips have poor conductivity and corrosion resistance, resulting in high costs and a lack of wire harness perforation structures, which occupy internal space in the battery pack.
The pultruded battery cell pressure bar, made of fiber composite material, includes a main groove, a pressure plate and a reinforcing connecting plate. It is equipped with wire harness through holes and steel sleeves. The reinforcing connecting plate is equipped with mounting through holes and uses C-shaped steel sleeves for tensioning connection.
It achieves good insulation, low density, and high strength, saves internal space of the battery pack, increases energy density, and avoids the phenomenon of untwisting through the installation hole.
Smart Images
Figure CN224020943U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of electric core pressure strip, especially relates to a kind of composite pultrusion electric core pressure strip. BACKGROUND
[0002] PACK pressure strip main effect is to improve the fixed strength of electric core, battery pack strength and insulation temperature resistance etc.Currently pressure strip is generally aluminum profile pressure strip, and aluminum profile pressure generally exists electric conductivity, poor corrosion resistance and high density and other shortcomings, causing the cost of pressure strip that can reach technical requirement is high;
[0003] In addition, in the existing structure, the pressure strip lacks wiring harness perforated structure, which is not conducive to saving the internal space of battery pack. SUMMARY
[0004] The utility model provides a kind of composite pultrusion electric core pressure strip, can solve the problems pointed out in the background art.
[0005] A kind of composite pultrusion electric core pressure strip, including pressure strip body, the pressure strip body is fiber composite material body, the pressure strip body includes main groove body, the pressing plate body connected in the both sides of main groove body, the main groove body is equipped with reinforcing connecting plate, wiring harness perforated structure is formed between the reinforcing connecting plate and the bottom plate of main groove body, first installation through-hole and second installation through-hole are respectively arranged on the reinforcing connecting plate and the bottom plate.
[0006] Preferably, the fiber composite material body includes an inner longitudinal reinforcing layer and an outer transverse reinforcing layer wrapped around the longitudinal reinforcing layer.
[0007] Preferably, the longitudinal reinforcing layer is a fiber yarn composite material layer, and the transverse reinforcing layer is a fiber felt composite material layer or a fiber warp-knitted fabric composite material layer.
[0008] Preferably, the second installation through-hole is embedded with a steel sleeve.
[0009] Preferably, the steel sleeve is a C-shaped steel sleeve.
[0010] Preferably, the bottom of the pressing plate body is provided with a buffer layer.
[0011] Preferably, the buffer layer is a buffer foam layer.
[0012] Preferably, the reinforcing connecting plate is provided with a plurality of weight-reducing holes.
[0013] Beneficial effects: the utility model provides a kind of composite material pultrusion battery cell batten, it is made of fiber composite material, with the advantages of good insulation, low density, high strength, high temperature resistance, corrosion resistance etc.;Wire harness perforation can be supplied battery pack battery core wire harness through it, can save battery pack internal space, indirectly increase battery pack energy density;Setting steel sleeve and using C-shaped steel sleeve, with batten body direct tension connection, after batten body and box bolt connection, the retreat of second installation through-hole can be effectively avoided. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is the structural diagram of the utility model,
[0015] Fig. 2 It is the cross-sectional view of the utility model,
[0016] Mark explanation:
[0017] Mark in drawing: batten body 1;Longitudinal reinforcing layer 11;Transverse reinforcing layer 12;Main groove body 13;Pressing plate body 14;Strengthening connecting plate 15;Bottom plate 16;Wire harness perforation 17;First installation through-hole 18;Second installation through-hole 19;Steel sleeve 20;Buffer layer 21. DETAILED DESCRIPTION
[0018] The utility model is described in detail in combination with the drawings, but it should be understood that the protection scope of the utility model is not limited by the specific embodiment.
[0019] Example 1: as Figs. 1-2 Indicated, the utility model embodiment provides a kind of composite material pultrusion battery cell batten, including batten body 1, batten body 1 is fiber composite material body, batten body 1 includes main groove body 13, the pressing plate body 14 connected in the both sides of main groove body 13, main groove body 13 is equipped with strengthening connecting plate 15, strengthening connecting plate 15 and the bottom plate 16 between main groove body 13 form wire harness perforation 17, strengthening connecting plate 15 and bottom plate 16 are respectively equipped with first installation through-hole 18 and second installation through-hole 19.Correspondingly, a plurality of weight-reducing holes 22 are arranged on the strengthening connecting plate 15.
[0020] Example 2: as Fig. 2 Indicated, fiber composite material body includes inside longitudinal reinforcing layer 11 and the transverse reinforcing layer 12 covered in longitudinal reinforcing layer 11 outside, longitudinal reinforcing layer 11 is fiber yarn composite material layer, and the transverse reinforcing layer 12 is fiber felt composite material layer or fiber warp-knitted fabric composite material layer, that is, set up transverse fiber yarn and set up longitudinal fiber felt or longitudinal fiber warp-knitted fabric, with resin as matrix, matrix can add flame retardant auxiliary agent, curing agent etc., using pultrusion process to form, pultrusion process is the process known in the art, and fiber composite material is also the material layer known in the art.
[0021] Example 3: As Fig. 2 As shown, a steel sleeve 20 is embedded in the second mounting through hole 19. The steel sleeve 20 is a C-shaped steel sleeve 20. The C-shaped steel sleeve 20 is tightened and connected to the second mounting through hole 19, which can effectively prevent the unwinding phenomenon at the second mounting through hole.
[0022] Example 4: Fig. 2 As shown, the bottom of the pressure plate body 14 is provided with a buffer layer 21, which is a buffer foam layer. After the pressure strip tightens the box body, the buffer layer 21 contacts the battery cell. The buffer layer 21 can reduce the hard contact force.
[0023] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.
Claims
1. A composite material pultruded battery cell pressure bar, comprising a pressure bar body (1), wherein the pressure bar body (1) is a fiber composite material body, the pressure bar body (1) comprises a main groove body (13) and pressure plate bodies (14) connected to both sides of the main groove body (13), wherein a reinforcing connecting plate (15) is provided in the main groove body (13), and a wire harness through hole (17) is formed between the reinforcing connecting plate (15) and the bottom plate (16) of the main groove body (13), wherein a first mounting through hole (18) and a second mounting through hole (19) are respectively provided on the reinforcing connecting plate (15) and the bottom plate (16).
2. The composite material pultruded battery cell pressure strip according to claim 1, characterized in that: The fiber composite body includes an inner longitudinal reinforcing layer (11) and a transverse reinforcing layer (12) covering the outer side of the longitudinal reinforcing layer (11).
3. The composite material pultruded battery cell pressure strip according to claim 2, characterized in that: The longitudinal reinforcement layer (11) is a fiber yarn composite material layer, and the transverse reinforcement layer (12) is a fiber felt composite material layer or a fiber warp-knitted fabric composite material layer.
4. The composite material pultruded battery cell pressure strip according to claim 1, characterized in that: A steel sleeve (20) is embedded in the second mounting through hole (19).
5. The composite material pultruded battery cell pressure strip according to claim 4, characterized in that: The steel sleeve (20) is a C-type steel sleeve (20).
6. A composite material pultruded battery cell pressure strip according to any one of claims 1-5, characterized in that: The bottom of the pressure plate body (14) is provided with a buffer layer (21).
7. The composite material pultruded battery cell pressure strip according to claim 6, characterized in that: The buffer layer (21) is a buffer foam layer.
8. A composite material pultruded battery cell pressure strip according to any one of claims 1-5, characterized in that: The reinforcing connecting plate (15) is provided with several weight-reducing holes (22).