New energy automobile battery pack protection rod and preparation method thereof

Abstract

The invention relates to the technical field of battery pack protection rods, and discloses a new energy automobile battery pack protection rod which comprises a mounting base, a fixing mechanism, a clamping mechanism, a bunching mechanism and a battery pack body, and the fixing mechanism, the clamping mechanism, the bunching mechanism and the battery pack body are arranged at the top of the mounting base. The fixing mechanism comprises a damping assembly and a fixing assembly, and the fixing assembly is arranged at the top of the damping assembly. The distance between the two clamping plates is adjusted, and then the clamping plates are used for clamping the two sides of the battery pack body and fixing the battery pack body, so that the battery pack body is prevented from shaking and finally falling off due to bumping in the automobile running process, and a battery is protected; the first spring, the damper and the second spring are used for absorbing vibration force, and vibration generated by the battery pack body in the running process of an automobile can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack protection bars, in particular to a new energy vehicle battery pack protection bar and a preparation method thereof. Background Art

[0002] New energy vehicles refer to all other energy vehicles except gasoline and diesel engines. Their exhaust emissions are relatively low. They can be seen everywhere in our lives and have been popularized among the general public. The most common new energy vehicles are electric vehicles. Electric vehicles are new energy vehicles powered by on-board batteries. Battery pack brackets are an important component of electric vehicles.

[0003] According to the description of a new energy vehicle battery pack bracket disclosed on the patent website (authorization announcement number: CN 217444548 U), "The present invention relates to the technical field of new energy vehicle battery packs, and discloses a new energy vehicle battery pack bracket, including a bottom plate, a disassembly mechanism is provided at the bottom of the bottom plate, a mounting plate is provided at the bottom of the disassembly mechanism, a support frame is fixedly connected to the top of the bottom plate, both sides of the support frame and the top of the bottom plate are provided with fixing mechanisms, a first fixing plate is fixedly connected to the middle of the top of the bottom plate, and the fixing mechanism includes a sliding rod, which is fixedly connected to the inner bottom of the support frame and the top of the bottom plate respectively, and the end of the sliding rod away from the support frame is fixedly connected to the limit plate, and the two sides of the end of the sliding rod away from the support frame are slidably connected to push blocks. The new energy vehicle battery pack bracket, through the setting of the fixing mechanism, can place the battery pack well when different specifications of the battery pack are needed, which increases the flexibility and versatility of the bracket to a certain extent, saves the cost of replacing the battery bracket, and achieves the effect of one rack for multiple uses."

[0004] In view of the above description, the applicant believes that there are the following problems: During use of the invention, the bracket can place battery packs of different specifications well through the setting of the fixing mechanism. However, in actual use, the car will vibrate during driving. If the road is bumpy, the battery pack may be detached from the top, causing damage to the battery pack. In addition, due to the influence of vibration, the battery pack of the new energy vehicle will produce a lot of wear and tear during long-term use. Therefore, it is necessary to improve a new energy vehicle battery pack protection rod and its preparation method to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a new energy vehicle battery pack protection bar and a preparation method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: a new energy vehicle battery pack protection bar, comprising a mounting base, a fixing mechanism is arranged on the top of the mounting base, a clamping mechanism is arranged on the top of the mounting base, a wiring harness mechanism is arranged on the top of the mounting base, and a battery pack body is arranged on the top of the mounting base; The fixing mechanism comprises a shock absorbing component and a fixing component, and the fixing component is arranged on the top of the shock absorbing component.

[0007] Preferably, the shock absorbing assembly includes a fixed block, which is fixedly installed inside the mounting base, a sliding plate is slidably installed on the top of the mounting base, a limiting rod is fixedly installed on the inner side of the fixed block, a sliding block is slidably installed on the outer side of the limiting rod, a spring 1 is fixedly installed on the inner side of the sliding block, a connecting rod 1 is rotatably installed on the top of the sliding block, a damper is fixedly installed inside the mounting base, and a spring 2 is fixedly installed inside the mounting base, which can effectively reduce the vibration generated by the battery pack body during driving of the car.

[0008] Preferably, the fixed block, sliding block, connecting rod 1, damping and spring 2 are arranged in two groups and are symmetrically distributed about the front center line of the mounting base. The end of the connecting rod 1 away from the sliding block is rotatably mounted on the sliding plate, and the end of the damping and spring 2 away from the mounting base is fixedly mounted on the sliding plate. The spring 1, damping and spring 2 are used to absorb the vibration force.

[0009] Preferably, the fixing assembly includes a power box, the power box is fixedly mounted on the top of the sliding plate, a rotating rod is rotatably mounted inside the power box, a bevel gear one is fixedly mounted on the outside of the rotating rod, a bevel gear two is rotatably mounted inside the power box, a two-way threaded rod is fixedly mounted on the back of the bevel gear two, a sliding frame is threadedly mounted on the outside of the two-way threaded rod, a connecting rod two is rotatably mounted on the inside of the sliding frame, a clamping plate is rotatably mounted on the end of the connecting rod two away from the sliding frame, a protective frame is fixedly mounted on the top of the sliding plate, and a knob is fixedly mounted on the left side of the rotating rod to fix the battery pack body to prevent the battery pack body from shaking due to bumps during driving of the car and finally falling off.

[0010] Preferably, the bevel gear 2 is meshed with the bevel gear 1, and the sliding frame and the connecting rod 2 are provided in two groups and are symmetrically distributed on the left center line of the bidirectional threaded rod, and the two sliding frames are respectively threadedly installed on the outside of the two ends of the bidirectional threaded rod in opposite thread directions to adjust the distance between the two clamping plates.

[0011] Preferably, the clamping mechanism includes spring three, and the spring three is fixedly installed inside the protective frame; a clamping block one is fixedly installed on the end of the spring three away from the protective frame, a connecting rod is fixedly installed on the end of the clamping block one close to the spring three, and a pull rod is fixedly installed on the end of the connecting rod away from the clamping block one; a mounting plate is provided on the top of the protective frame, a clamping block two is fixedly installed on the bottom of the mounting plate, a telescopic rod is fixedly installed on the bottom of the mounting plate, a lower pressure plate is fixedly installed on the end of the telescopic rod away from the mounting plate, and a spring four is fixedly installed on the bottom of the mounting plate, so as to further protect the battery pack body.

[0012] Preferably, one end of the spring four away from the mounting plate is fixedly mounted on the lower pressure plate, a through hole is provided at the corresponding position of the protective frame and the clamping block two, and the clamping block two passes through the through hole and is clamped with the clamping block one, so that the clamping block two is separated from the clamping range of the clamping block one, and the mounting plate can be removed.

[0013] Preferably, the wiring harness mechanism includes a threaded groove, which is opened inside the sliding plate, a bolt is threadedly installed inside the threaded groove, a gasket is provided outside the bolt, and a wiring harness plate is provided outside the bolt to prevent the power cord from being detached due to bumps and to prevent the power cord from being scattered, thereby increasing space utilization.

[0014] Preferably, the gasket is sequentially passed through the gasket and the cable tie plate and threadedly installed inside the thread groove, and the cable tie plate can be used to fix the power cord by turning the bolt.

[0015] A method for preparing a new energy vehicle battery pack protection rod comprises the following steps: S1. Material preparation: The materials to be prepared are the base material and reinforcing material of the composite material. The base material is selected from high-strength and high-rigidity materials, and the reinforcing material is selected from high-strength and high-toughness resins. The base material is composed of carbon fiber, glass fiber, and aramid fiber, and the reinforcing material is composed of epoxy resin, polyester resin, and phenolic resin; S2. Hot pressing: Before hot pressing, the base material and the reinforcing material need to be placed together in the mold, and the base material and the reinforcing material need to be stacked alternately, that is, the base material and the reinforcing material need to be stacked alternately in a certain order; S3. Post-treatment: The formed guardrail is sprayed with a polyurethane topcoat, which has good weather resistance and chemical resistance and is available in a variety of colors to improve appearance quality and durability.

[0016] Compared with the prior art, the present invention provides a new energy vehicle battery pack protection bar and a preparation method thereof, which has the following beneficial effects: 1. The new energy vehicle battery pack protection rod and its preparation method, through the setting of the fixing mechanism, during use, adjusts the distance between the two clamping plates, and then uses the clamping plates to clamp the two sides of the battery pack body, fixes the battery pack body, prevents the battery pack body from shaking due to bumps during the driving of the car, and finally falls off, protects the battery, and uses the spring one, damping and spring two to absorb the vibration force, which can effectively reduce the vibration generated by the battery pack body during the driving of the car.

[0017] 2. The new energy vehicle battery pack protection rod and its preparation method, through the provided clamping mechanism, uses the lower pressure plate to fix the top of the battery pack body during use to prevent the battery pack body from falling off the top of the two clamping plates during bumps, thereby providing further protection for the battery pack body. Moreover, only the connecting rod needs to be pulled, and the connecting rod drives the clamping block 1, so that the clamping block 2 is separated from the clamping range of the clamping block 1, and the mounting plate can be removed, thereby facilitating the maintenance, disassembly and installation of the battery pack body.

[0018] 3. The new energy vehicle battery pack protection rod and its preparation method, through the set wire harness mechanism, can use the wire harness plate to fix the power cord by turning the bolts during use, to prevent the power cord from being detached due to bumps, and to prevent the power cord from being scattered, thereby increasing space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor: Figure 1 This is a schematic diagram of the appearance structure of the present invention; Figure 2 It is a schematic diagram of the fixing mechanism structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the shock absorbing assembly of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the fixing assembly of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the clamping mechanism of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the structure enlargement in the middle; Figure 7 It is a schematic diagram of the exploded structure of the wiring harness mechanism of the present invention.

[0020] In the figure: 1, mounting base; 2, fixing mechanism; 21, shock absorbing assembly; 211, fixing block; 212, sliding plate; 213, limiting rod; 214, sliding block; 215, spring 1; 216, connecting rod 1; 217, damping; 218, spring 2; 22, fixing assembly; 221, power box; 222, rotating rod; 223, bevel gear 1; 224, bevel gear 2; 225, protective frame; 226, two-way screw Threaded rod; 227, sliding frame; 228, connecting rod 2; 229, clamping plate; 2210, knob; 3, clamping mechanism; 31, spring 3; 32, clamping block 1; 33, connecting rod; 34, pull rod; 35, mounting plate; 36, clamping block 2; 37, telescopic rod; 38, lower pressure plate; 39, spring 4; 4, wiring harness mechanism; 41, threaded groove; 42, bolt; 43, gasket; 44, wiring harness plate; 5, battery pack body. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0023] See also Figure 1-4 The present invention provides a technical solution: a new energy vehicle battery pack protection rod, comprising a mounting base 1, a fixing mechanism 2 is arranged on the top of the mounting base 1, a clamping mechanism 3 is arranged on the top of the mounting base 1, a wiring harness mechanism 4 is arranged on the top of the mounting base 1, and a battery pack body 5 is arranged on the top of the mounting base 1; The fixing mechanism 2 includes a shock absorbing component 21 and a fixing component 22 , and the fixing component 22 is arranged on the top of the shock absorbing component 21 .

[0024] Furthermore, the shock absorbing assembly 21 includes a fixed block 211, which is fixedly installed inside the mounting base 1, a sliding plate 212 is slidably installed on the top of the mounting base 1, a limiting rod 213 is fixedly installed on the inner side of the fixed block 211, a sliding block 214 is slidably installed on the outer side of the limiting rod 213, a spring 215 is fixedly installed on the inner side of the sliding block 214, a connecting rod 216 is rotatably installed on the top of the sliding block 214, a damper 217 is fixedly installed inside the mounting base 1, and a spring 218 is fixedly installed inside the mounting base 1, which can effectively reduce the vibration generated by the battery pack body 5 during the driving of the car.

[0025] Furthermore, two groups of fixed block 211, sliding block 214, connecting rod 1 216, damping 217 and spring 218 are provided and symmetrically distributed on the front center line of the mounting base 1. The end of connecting rod 1 216 away from sliding block 214 is rotatably mounted on the sliding plate 212, and the end of damping 217 and spring 218 away from the mounting base 1 is fixedly mounted on the sliding plate 212. Spring 1 215, damping 217 and spring 218 are used to absorb the vibration force.

[0026] Furthermore, the fixing assembly 22 includes a power box 221, which is fixedly mounted on the top of the sliding plate 212, a rotating rod 222 is rotatably mounted inside the power box 221, a bevel gear 1 223 is fixedly mounted on the outside of the rotating rod 222, a bevel gear 2 224 is rotatably mounted inside the power box 221, a bidirectional threaded rod 226 is fixedly mounted on the back of the bevel gear 224, a sliding frame 227 is threadedly mounted on the outside of the bidirectional threaded rod 226, a connecting rod 228 is rotatably mounted on the inner side of the sliding frame 227, a clamping plate 229 is rotatably mounted on the end of the connecting rod 228 away from the sliding frame 227, a protective frame 225 is fixedly mounted on the top of the sliding plate 212, and a knob 2210 is fixedly mounted on the left side of the rotating rod 222, so as to fix the battery pack body 5 to prevent the battery pack body 5 from shaking due to bumps during the driving of the car and finally falling off.

[0027] Furthermore, bevel gear 224 is meshed with bevel gear 1 223, and two sets of sliding frames 227 and connecting rod 228 are provided, and are symmetrically distributed on the left center line of the bidirectional threaded rod 226, and the two sliding frames 227 are respectively threadedly installed on the outside of the two ends of the bidirectional threaded rod 226 in opposite thread directions to adjust the distance between the two clamping plates 229. Example

[0028] See also Figure 5-6, and combined with the first embodiment, it is further obtained that the clamping mechanism 3 includes a spring three 31, the spring three 31 is fixedly installed inside the protective frame 225, the end of the spring three 31 away from the protective frame 225 is fixedly installed with a clamping block one 32, the end of the clamping block one 32 close to the spring three 31 is fixedly installed with a connecting rod 33, and the end of the connecting rod 33 away from the clamping block one 32 is fixedly installed with a pull rod 34, a mounting plate 35 is provided on the top of the protective frame 225, a clamping block two 36 is fixedly installed on the bottom of the mounting plate 35, a telescopic rod 37 is fixedly installed on the bottom of the mounting plate 35, a lower pressure plate 38 is fixedly installed on the end of the telescopic rod 37 away from the mounting plate 35, and a spring four 39 is fixedly installed on the bottom of the mounting plate 35, so as to further protect the battery pack body 5.

[0029] Furthermore, one end of spring four 39 away from the mounting plate 35 is fixedly mounted to the lower pressure plate 38, a through hole is provided at the corresponding position of the protective frame 225 and the clamping block two 36, and the clamping block two 36 passes through the through hole and is clamped with the clamping block one 32, so that the clamping block two 36 is separated from the clamping range of the clamping block one 32, and the mounting plate 35 can be removed. Example

[0030] See also Figure 7 In combination with the first embodiment and the second embodiment, it is further obtained that the wire harness mechanism 4 includes a thread groove 41, the thread groove 41 is opened inside the sliding plate 212, a bolt 42 is threadedly installed inside the thread groove 41, a gasket 43 is arranged outside the bolt 42, and a wire harness plate 44 is arranged outside the bolt 42 to prevent the power cord from being detached due to bumps and to prevent the power cord from being scattered, thereby increasing space utilization.

[0031] Furthermore, the gasket 43 is sequentially passed through the gasket 43 and the wire tie plate 44 and is threadedly installed inside the thread groove 41 , and the wire tie plate 44 can be used to fix the power line by turning the bolt 42 . Example

[0032] See also Figure 1-7 , and combined with Example 1, Example 2 and Example 3, further obtained is a method for preparing a new energy vehicle battery pack protection rod, comprising the following steps: S1. Material preparation: The materials to be prepared are the base material and reinforcing material of the composite material. The base material is selected from high-strength and high-rigidity materials, and the reinforcing material is selected from high-strength and high-toughness resins. The base material is composed of carbon fiber, glass fiber, and aramid fiber, and the reinforcing material is composed of epoxy resin, polyester resin, and phenolic resin; S2. Hot pressing: Before hot pressing, the base material and the reinforcing material need to be placed together in the mold, and the base material and the reinforcing material need to be stacked alternately, that is, the base material and the reinforcing material need to be stacked alternately in a certain order; S3. Post-treatment: The formed guardrail is sprayed with a polyurethane topcoat, which has good weather resistance and chemical resistance and is available in a variety of colors to improve appearance quality and durability.

[0033] In actual operation, when the device is used, the battery pack body 5 is placed on the top of the sliding plate 212, and the bevel gear 224 is rotated. The bevel gear 224 drives the rotating rod 222 to rotate, and the rotating rod 222 rotates to drive the bevel gear 1 223 to rotate, and the bevel gear 1 223 rotates to drive the bevel gear 224 meshing therewith to rotate, and the bevel gear 224 rotates to drive the bidirectional threaded rod 226 to rotate, thereby adjusting the distance between the two clamping plates 229, and then using the clamping plates 229 to adjust the distance between the two clamping plates 229. The two sides of the battery pack body 5 are clamped to fix the battery pack body 5 to prevent the battery pack body 5 from shaking due to bumps during the driving of the car and finally falling off, thereby protecting the battery. Then, the lower pressing plate 38 is placed against the top of the battery pack body 5, and the second clamping block 36 is inserted into the through hole. The second clamping block 36 squeezes the first clamping block 32, and the elastic force of the third spring 31 is used to make the first clamping block 32 clamp the second clamping block 36, thereby fixing the position of the mounting plate 35, and using the lower pressing plate 38 to fix the battery pack body 5. The pressing plate 38 fixes the top of the battery pack body 5 to prevent the battery pack body 5 from falling off the top of the two clamping plates 229 during the bumping process, thereby further protecting the battery pack body 5. The battery pack body 5 can be further protected by only pulling the connecting rod 33, and the connecting rod 33 drives the clamping block 1 32 to make the clamping block 2 36 disengage from the clamping range of the clamping block 1 32, so that the mounting plate 35 can be removed, which is convenient for repairing and disassembling and installing the battery pack body 5. After the installation is completed, the power cord of the battery pack body 5 is placed inside the harness plate 44, and the bolt 42 can be turned to fix the power cord using the harness plate 44 to prevent the power cord from falling off due to bumps and to prevent the power cord from being scattered, thereby increasing space utilization. When the road is bumpy, the sliding plate 212 presses the connecting rod 1 216 downward, and the connecting rod 1 216 makes the sliding block 214 slide on the outside of the spring 1 215. The spring 1 215, the damping 217 and the spring 218 are used to absorb the vibration force, which can effectively reduce the vibration generated by the battery pack body 5 during the driving of the car.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A new energy vehicle battery pack protection bar, comprising a mounting base (1), characterized in that: The top of the mounting base (1) is provided with a fixing mechanism (2), the top of the mounting base (1) is provided with a clamping mechanism (3), the top of the mounting base (1) is provided with a wiring harness mechanism (4), and the top of the mounting base (1) is provided with a battery pack body (5); The fixing mechanism (2) comprises a shock absorbing component (21) and a fixing component (22), wherein the fixing component (22) is arranged on top of the shock absorbing component (21).

2. A new energy vehicle battery pack protection bar according to claim 1, characterized in that: The shock absorbing assembly (21) comprises a fixed block (211), the fixed block (211) being fixedly mounted inside the mounting base (1), a sliding plate (212) being slidably mounted on the top of the mounting base (1), a limiting rod (213) being fixedly mounted inside the fixed block (211), a sliding block (214) being slidably mounted outside the limiting rod (213), a spring 1 (215) being fixedly mounted inside the sliding block (214), a connecting rod 1 (216) being rotatably mounted on the top of the sliding block (214), a damper (217) being fixedly mounted inside the mounting base (1), and a spring 2 (218) being fixedly mounted inside the mounting base (1).

3. A new energy vehicle battery pack protection bar according to claim 2, characterized in that: The fixed block (211), the sliding block (214), the connecting rod 1 (216), the damper (217) and the spring 2 (218) are provided in two groups and are symmetrically distributed on the front center line of the mounting base (1); one end of the connecting rod 1 (216) away from the sliding block (214) is rotatably mounted on the sliding plate (212); and one end of the damper (217) and the spring 2 (218) away from the mounting base (1) is fixedly mounted on the sliding plate (212).

4. A new energy vehicle battery pack protection bar according to claim 2, characterized in that: The fixing assembly (22) comprises a power box (221), the power box (221) being fixedly mounted on the top of the sliding plate (212), a rotating rod (222) being rotatably mounted inside the power box (221), a bevel gear 1 (223) being fixedly mounted outside the rotating rod (222), a bevel gear 2 (224) being rotatably mounted inside the power box (221), a bidirectional threaded rod (226) being fixedly mounted on the back of the bevel gear 2 (224), a sliding frame (227) being threadably mounted on the outside of the bidirectional threaded rod (226), a connecting rod 2 (228) being rotatably mounted on the inside of the sliding frame (227), a clamping plate (229) being rotatably mounted on one end of the connecting rod 2 (228) away from the sliding frame (227), a protective frame (225) being fixedly mounted on the top of the sliding plate (212), and a knob (2210) being fixedly mounted on the left side of the rotating rod (222).

5. A new energy vehicle battery pack protection bar according to claim 4, characterized in that: The second bevel gear (224) is meshed with the first bevel gear (223), and two sets of the sliding frame (227) and the second connecting rod (228) are provided and symmetrically distributed on the left center line of the bidirectional threaded rod (226), and the two sliding frames (227) are respectively threadedly mounted on the outside of the two ends of the bidirectional threaded rod (226) in opposite thread directions.

6. A new energy vehicle battery pack protection bar according to claim 4, characterized in that: The clamping mechanism (3) comprises a spring three (31), wherein the spring three (31) is fixedly mounted inside the protective frame (225), a clamping block one (32) is fixedly mounted on one end of the spring three (31) away from the protective frame (225), a connecting rod (33) is fixedly mounted on one end of the clamping block one (32) close to the spring three (31), and a pull rod (34) is fixedly mounted on one end of the connecting rod (33) away from the clamping block one (32), a mounting plate (35) is arranged on the top of the protective frame (225), a clamping block two (36) is fixedly mounted on the bottom of the mounting plate (35), a telescopic rod (37) is fixedly mounted on the bottom of the mounting plate (35), a lower pressure plate (38) is fixedly mounted on one end of the telescopic rod (37) away from the mounting plate (35), and a spring four (39) is fixedly mounted on the bottom of the mounting plate (35).

7. A new energy vehicle battery pack protection bar according to claim 6, characterized in that: One end of the spring four (39) away from the mounting plate (35) is fixedly mounted to the lower pressing plate (38), and through holes are provided at positions corresponding to the protective frame (225) and the clamping block two (36), and the clamping block two (36) passes through the through hole to be clamped with the clamping block one (32).

8. The new energy vehicle battery pack protection bar according to claim 1, characterized in that: The harness mechanism (4) comprises a thread groove (41), the thread groove (41) being provided inside the sliding plate (212), a bolt (42) being threadedly mounted inside the thread groove (41), a gasket (43) being provided outside the bolt (42), and a harness plate (44) being provided outside the bolt (42).

9. A new energy vehicle battery pack protection bar according to claim 8, characterized in that: The gasket (43) passes through the gasket (43) and the wire harness plate (44) in sequence and is threadedly installed inside the thread groove (41).

10. A method for preparing a new energy vehicle battery pack protection rod, characterized in that: The following steps are involved: S1. Material preparation: The materials to be prepared are the base material and reinforcing material of the composite material. The base material is selected from high-strength and high-rigidity materials, and the reinforcing material is selected from high-strength and high-toughness resins. The base material is composed of carbon fiber, glass fiber, and aramid fiber, and the reinforcing material is composed of epoxy resin, polyester resin, and phenolic resin; S2. Hot pressing: Before hot pressing, the base material and the reinforcing material need to be placed together in the mold, and the base material and the reinforcing material need to be stacked alternately, that is, the base material and the reinforcing material need to be stacked alternately in a certain order; S3. Post-treatment: The formed guardrail is sprayed with a polyurethane topcoat, which has good weather resistance and chemical resistance and is available in a variety of colors to improve appearance quality and durability.

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