Injection molding engine hood inner plate

Abstract

The utility model discloses an injection molding engine cover inner plate which comprises a first injection molding plate, through holes are formed, a second heat conduction block guides heat into a first heat conduction block, the first heat conduction block dissipates the heat into heat dissipation holes, the heat enters the through holes from the heat dissipation holes, air pressure in the through holes is increased along with temperature rise, and the heat dissipation effect is improved. The elastic heat insulation plate is opened, heat is dissipated into the first through grooves and the second through grooves, the first through grooves and the second through grooves communicate with the outside, heat is discharged, heat-proof coatings are arranged on the surfaces of the through holes, the first through grooves and the second through grooves, the first injection molding plate is prevented from being damaged by the heat, heat in the engine is conveniently discharged, and the service life of the engine is prolonged. The situation that heat is accumulated at the lower end of the inner plate all the time, heat insulation cotton is damaged, and then the injection molding plate is damaged is prevented, the reinforcing plate can reinforce the hardness of the whole device, the reinforcing plate is made of heat insulation materials, a reinforcing keel is arranged in the reinforcing plate, and the problem that the inner plate is prone to being damaged can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engine hood inner panels, in particular to an injection-molded engine hood inner panel. Background Art

[0002] The injection molded hood inner panel is a plastic component used inside the hood of a car, usually made of thermoplastics through an injection molding process. The main function of this inner panel is to protect the mechanical parts inside the hood and prevent dust, moisture and other impurities from entering the engine compartment. At the same time, it can also play a certain role in sound insulation and heat insulation, improving the comfort and safety of the vehicle. The existing injection molded inner panel has poor heat dissipation effect during use, which easily causes heat to accumulate inside the engine. If the heat accumulates inside the engine for a long time, it is easy to damage the engine.

[0003] After searching, in the prior art, Chinese patent announcement number: CN210310569U discloses a PP injection molded hood inner panel, including: a device body, a support plate and a fixing block, the top front part of the device body is fixedly connected to the support plate by screws, the rear end of the support plate is fixedly connected to the support column by adhesive, the bottom end of the support plate is welded with a fixing block, and the bottom end of the fixing block is fixedly connected to the second support plate by glue. The utility model has two support plates, and the support plates are arranged in parallel, and the front and rear ends of the support column are respectively fixed between the inner walls of the two support plates. The two support plates can strengthen the firmness of the device body, and the support plates are further fixed by the support columns, so that when one position of the support plate is subjected to force, the other support plate can play a supporting effect, thereby improving the firmness of the PP injection molded hood inner panel.

[0004] The device has a poor heat dissipation effect when in use. The device only has a structure to reinforce the device body, and does not perform heat dissipation treatment on the device. When the device body is in use, heat accumulates inside the engine, which will cause the insulation effect of the insulation cotton to deteriorate over time, so that heat enters the device body and damages the injection molded plate. Therefore, we need to propose an injection molded engine hood inner panel. Utility Model Content

[0005] The utility model aims to provide an injection molded engine hood inner plate, which is provided with a heat dissipation component, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An injection molded engine hood inner panel comprises a first injection molded plate, wherein a heat dissipation component is arranged inside the first injection molded plate;

[0008] The heat dissipation component includes a plurality of first through grooves evenly opened on the upper end of the first injection molding plate, a plurality of second through grooves evenly opened on the upper end of the first injection molding plate, the plurality of second through grooves are communicated with the plurality of first through grooves, a through hole is opened inside the first injection molding plate, the through hole is respectively communicated with the plurality of first through grooves and the plurality of second through grooves, two symmetrically distributed elastic heat insulation plates are arranged inside the through hole, the lower ends of the two elastic heat insulation plates abut against a limiting plate, and the limiting plate is fixedly installed inside the through hole.

[0009] Preferably, a first heat insulating sponge is fixedly mounted on the upper end of the first injection molded plate, and a reinforcing plate is abutted against the lower end of the first injection molded plate.

[0010] Preferably, a heat dissipation hole is opened inside the reinforcing plate, and the heat dissipation hole is arranged at the lower end of the through hole.

[0011] Preferably, the lower end of the reinforcing plate is in contact with a second injection molding plate, and a first heat conducting block is fixedly installed inside the second injection molding plate.

[0012] Preferably, the internal thread connection of the second injection molded plate is provided with a plurality of symmetrically distributed fixing bolts, and the plurality of fixing bolts are rotatably connected to the first injection molded plate and the reinforcing plate respectively.

[0013] Preferably, a second heat-insulating sponge is fixedly mounted on the lower end of the second injection-molded plate, and a second heat-conducting block is fixedly connected inside the second heat-insulating sponge.

[0014] Preferably, the second heat-conducting block is arranged at the lower end of the first heat-conducting block, and the first heat-conducting block is arranged at the lower end of the heat dissipation hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a through hole, and the second heat-conducting block guides the heat into the first heat-conducting block, and the first heat-conducting block dissipates the heat into the heat dissipation hole. The heat enters the through hole from the heat dissipation hole. As the temperature rises, the air pressure inside the through hole increases, and the elastic heat insulation plate opens to dissipate the heat into the first through groove and the second through groove. The first through groove and the second through groove are communicated with the outside to discharge the heat. The surfaces of the through hole and the plurality of first through grooves and the plurality of second through grooves are all provided with a heat-proof coating to prevent the heat from damaging the first injection molding plate, and facilitate the discharge of the heat inside the engine, and prevent the heat from accumulating at the lower end of the inner plate, which will damage the heat insulation cotton and further damage the injection molding plate. The reinforcing plate can enhance the hardness of the entire device. The reinforcing plate is made of heat-insulating material, and a reinforcing keel is provided inside the reinforcing plate to avoid the problem of easy damage to the inner plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the expanded structure of the utility model;

[0019] Figure 3 This is one of the schematic diagrams of the first injection molding plate structure of the utility model;

[0020] Figure 4 This is the second schematic diagram of the first injection molding plate structure of the utility model.

[0021] In the figure: 1. first injection molded plate; 2. heat dissipation component; 21. first through groove; 22. second through groove; 23. through hole; 24. elastic heat insulation plate; 25. limit plate; 3. first heat insulation sponge; 4. reinforcement plate; 41. heat dissipation hole; 5. second injection molded plate; 51. first heat conductive block; 6. fixing bolt; 7. second heat insulation sponge; 71. second heat conductive block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the 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 in 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] See also Figure 1-4 , the utility model provides a technical solution:

[0024] An injection molded engine hood inner panel comprises a first injection molded plate 1, wherein a heat dissipation component 2 is arranged inside the first injection molded plate 1;

[0025] The heat dissipation component 2 includes a plurality of first through grooves 21 evenly opened on the upper end of the first injection molded plate 1, a plurality of second through grooves 22 evenly opened on the upper end of the first injection molded plate 1, the plurality of second through grooves 22 are communicated with the plurality of first through grooves 21, a through hole 23 is opened inside the first injection molded plate 1, the through hole 23 is respectively communicated with the plurality of first through grooves 21 and the plurality of second through grooves 22, two symmetrically distributed elastic heat insulation plates 24 are arranged inside the through hole 23, the lower ends of the two elastic heat insulation plates 24 abut against a limiting plate 25, and the limiting plate 25 is fixedly installed inside the through hole 23.

[0026] Exemplarily, the surfaces of the through hole 23 and the plurality of first through grooves 21 and the plurality of second through grooves 22 are all provided with a heat-resistant coating.

[0027] The first heat insulating sponge 3 is fixedly mounted on the upper end of the first injection molded plate 1 , and the reinforcing plate 4 is abutted against the lower end of the first injection molded plate 1 .

[0028] Exemplarily, the first heat insulating sponge 3 prevents the external temperature from affecting the first injection molded plate 1 , and the reinforcing plate 4 can enhance the hardness of the entire device. The reinforcing plate 4 is made of a heat insulating material, and a reinforcing keel is arranged inside the reinforcing plate 4 .

[0029] A heat dissipation hole 41 is formed inside the reinforcing plate 4 , and the heat dissipation hole 41 is disposed at the lower end of the through hole 23 .

[0030] Exemplarily, the heat dissipation holes 41 dissipate the heat inside the engine.

[0031] The lower end of the reinforcing plate 4 abuts against the second injection plate 5 , and a first heat conducting block 51 is fixedly installed inside the second injection plate 5 .

[0032] Exemplarily, the second injection molding plate 5 and the first injection molding plate 1 plus the reinforcing plate 4 constitute the main body of the device, and the first heat conducting block 51 facilitates heat conduction.

[0033] The second injection molding plate 5 is internally threadedly connected with a plurality of symmetrically distributed fixing bolts 6 , and the plurality of fixing bolts 6 are rotatably connected to the first injection molding plate 1 and the reinforcing plate 4 respectively.

[0034] Exemplarily, a plurality of fixing bolts 6 fix the first injection molded plate 1 , the reinforcement plate 4 , and the second injection molded plate 5 .

[0035] A second heat insulating sponge 7 is fixedly mounted on the lower end of the second injection molding plate 5 , and a second heat conducting block 71 is fixedly connected inside the second heat insulating sponge 7 .

[0036] Exemplarily, the second heat insulating sponge 7 protects the second injection molded plate 5, and the second heat conducting block 71 conducts heat away from the inside of the engine.

[0037] The second heat conducting block 71 is disposed at the lower end of the first heat conducting block 51 , and the first heat conducting block 51 is disposed at the lower end of the heat dissipation hole 41 .

[0038] Exemplarily, the second heat-conducting block 71 introduces heat into the first heat-conducting block 51 , and the first heat-conducting block 51 dissipates heat into the heat dissipation hole 41 .

[0039] Working principle: When the utility model is assembled, the first injection molding plate 1, the reinforcing plate 4, and the second injection molding plate 5 are fixed by multiple fixing bolts 6, the first thermal insulation sponge 3 is fixedly installed on the upper end of the first injection molding plate 1, and the first thermal insulation sponge 3 is provided with multiple grooves for installing the fixing bolts 6, so that the fixing bolts 6 can be easily clamped inside the first thermal insulation sponge 3, and the second thermal insulation sponge 7 is fixedly installed on the lower end of the second injection molding plate 5, so as to complete the assembly of the device;

[0040] When in use, the second heat-conducting block 71 introduces heat into the first heat-conducting block 51, and the first heat-conducting block 51 dissipates heat into the heat dissipation hole 41. The heat enters the through hole 23 from the heat dissipation hole 41. As the temperature rises, the air pressure inside the through hole 23 increases, and the elastic heat insulation plate 24 opens to dissipate heat into the first through groove 21 and the second through groove 22. The first through groove 21 and the second through groove 22 are connected to the outside world to discharge heat. The surfaces of the through hole 23 and multiple first through grooves 21 and multiple second through grooves 22 are all provided with a heat-proof coating to prevent heat from damaging the first injection molded plate 1. The reinforcing plate 4 can enhance the hardness of the entire device. The reinforcing plate 4 is made of heat-insulating material, and a reinforcing keel is provided inside the reinforcing plate 4.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molded engine hood inner panel, comprising a first injection molded panel (1), characterized in that: A heat dissipation component (2) is arranged inside the first injection molded plate (1); The heat dissipation component (2) comprises a plurality of first through grooves (21) uniformly formed on the upper end of the first injection molded plate (1); a plurality of second through grooves (22) uniformly formed on the upper end of the first injection molded plate (1); the plurality of second through grooves (22) are communicated with the plurality of first through grooves (21); a through hole (23) is formed inside the first injection molded plate (1); the through hole (23) is communicated with the plurality of first through grooves (21) and the plurality of second through grooves (22) respectively; two symmetrically distributed elastic heat insulation plates (24) are arranged inside the through hole (23); the lower ends of the two elastic heat insulation plates (24) abut against a limiting plate (25); the limiting plate (25) is fixedly mounted inside the through hole (23).

2. The injection molded hood inner panel according to claim 1, characterized in that: A first heat insulating sponge (3) is fixedly mounted on the upper end of the first injection molded plate (1), and a reinforcing plate (4) is abutted against the lower end of the first injection molded plate (1).

3. The injection molded engine hood inner panel according to claim 2, characterized in that: A heat dissipation hole (41) is provided inside the reinforcing plate (4), and the heat dissipation hole (41) is arranged at the lower end of the through hole (23).

4. The injection molded engine hood inner panel according to claim 3, characterized in that: The lower end of the reinforcing plate (4) is in contact with a second injection molding plate (5), and a first heat conducting block (51) is fixedly mounted inside the second injection molding plate (5).

5. The injection molded engine hood inner panel according to claim 4, characterized in that: The second injection molding plate (5) is internally threadedly connected with a plurality of symmetrically distributed fixing bolts (6), and the plurality of fixing bolts (6) are rotatably connected to the first injection molding plate (1) and the reinforcing plate (4) respectively.

6. The injection molded engine hood inner panel according to claim 5, characterized in that: A second heat-insulating sponge (7) is fixedly mounted on the lower end of the second injection-molded plate (5), and a second heat-conducting block (71) is fixedly connected inside the second heat-insulating sponge (7).

7. The injection molded engine hood inner panel according to claim 6, characterized in that: The second heat-conducting block (71) is arranged at the lower end of the first heat-conducting block (51), and the first heat-conducting block (51) is arranged at the lower end of the heat dissipation hole (41).

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