Foaming board for ventilation and heating and unit shell

Abstract

The utility model discloses a foaming board for ventilation and heating and a unit shell, the foaming board for ventilation and heating is used for abutting against and sealing a step structure, the step structure is provided with a bottom face and a side face, the foaming board comprises a board body, a protrusion is arranged on the peripheral side of the outer edge of the board body, the protrusion comprises a first end face and a second end face, and the first end face and the second end face are arranged on the board body. The first end face is used for abutting against the bottom face, a strip-shaped elastic sealing piece is arranged on the second end face, the elastic sealing piece is used for extruding the side face, and sealing between the side face and the second end face is achieved by extruding the side face through the elastic sealing piece. The foam board can be installed with the step structure in a matched mode through the protrusions on the outer edge, the side wall of the step structure is completely sealed through the sealing pieces on the protrusions, and due to the fact that the sealing pieces on the periphery of the foam board are in interference fit with the step structure, the sealing pieces are extruded to deform to form a sealing face to achieve the waterproof effect. The structure is higher in efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of foamed boards, and particularly relates to a foamed board for heating and ventilation and a unit housing. Background Technology

[0002] In the HVAC industry, when foam boards are used in conjunction with unit housings (e.g., sheet metal housings), due to the ease of installation and processing of foam boards, there is an assembly gap between the foam board and the unit housing after installation. The foam board has no waterproof function around its perimeter and poor noise reduction effect. It is necessary to use sealant and sound-absorbing cotton to ensure the sealing and noise reduction effect of the foam board and its surroundings.

[0003] Therefore, there is an urgent need to design a foam board to improve the sealing and noise reduction effects of foam boards. Utility Model Content

[0004] One objective of this invention is to provide a foam board for heating, which can easily and effectively seal the periphery of the foam board and the stepped structure, thereby reducing noise and waterproofing.

[0005] Another objective of this invention is to provide a foam board for heating that can effectively reduce noise.

[0006] To achieve the above objectives, the specific technical solutions for the foamed board and unit casing for heating and ventilation of this utility model are as follows:

[0007] A heating foam board is used to abut and seal a stepped structure, the stepped structure having a bottom surface and a side surface. The foam board includes a board body, and a protrusion is provided on the outer periphery of the board body. The protrusion includes a first end face and a second end face. The first end face is used to abut the bottom surface, and a strip-shaped elastic sealing element is provided on the second end face. The elastic sealing element is used to compress the side surface, thereby achieving a seal between the side surface and the second end face by compressing the side surface with the elastic sealing element.

[0008] Furthermore, the cross-section of the seal includes a contact surface that abuts against the side surface, and the contact surface is a wavy surface, a sawtooth surface, or an arc surface that protrudes towards the side surface.

[0009] Furthermore, the cross-section of the seal includes a sealing portion, the contact surface is disposed on the sealing portion, and two legs extend from both sides of the sealing portion and the contact surface away from the contact surface, respectively. The ends of the legs are provided with enlarged portions, and the width of the enlarged portions is greater than the width of the legs.

[0010] Furthermore, the second end face is provided with a longitudinal groove and a longitudinal through hole communicating with the groove, through which the enlarged part is accommodated and the leg extends out from the through hole, so as to install the seal on the second end face.

[0011] Furthermore, the surface of the sealing part opposite to the contact surface is an outwardly convex arc shape.

[0012] Furthermore, the board body includes a board frame, a first side plate and a second side plate. The protrusion is disposed on the board frame. The first side plate and the second side plate are spaced apart and are both connected to the side wall of the board frame. The board frame, the first side plate and the second side plate form a cavity, and foaming material is disposed in the cavity.

[0013] Furthermore, the first side panel is an inner panel, and the inner panel has a honeycomb structure that extends toward the second side panel into the foamed material.

[0014] Furthermore, the honeycomb structure consists of honeycomb chambers arranged at uniform intervals in both the transverse and longitudinal directions.

[0015] Furthermore, the foaming material is polyurethane.

[0016] A unit housing includes a stepped structure and the aforementioned heating foam board, wherein the foam board cooperates with the stepped structure and abuts against the side of the stepped structure through the elastic sealing member to seal the unit housing.

[0017] The foamed board of this utility model has the following advantages:

[0018] 1) The foam board can be installed by matching the protrusions on the outer edge with the stepped structure, and the side wall of the stepped structure can be completely sealed by the sealing element on the protrusion, so as to simply and effectively seal the periphery of the foam board and the stepped structure.

[0019] 2) When using this foam board, the sealing parts around the foam board can be interference-fitted with the stepped structure. The sealing parts are deformed by compression to form a sealing surface to achieve a waterproof effect. Compared with the traditional process of applying glue (structural glue) for sealing, this structure is more efficient and more reliable.

[0020] The unit housing of this utility model has the following advantages: The unit housing is assembled and sealed with the above-mentioned foam board with a stepped structure. Furthermore, the filling material in the middle of the foam board is polyurethane, which has good sound absorption properties. In addition, compared with traditional foam boards, this foam board is provided with honeycomb-shaped sound-absorbing channels. That is to say, the interior of the foam board body is equivalent to being divided into individual open chambers, which is more conducive to effectively absorbing and attenuating sound waves and reducing noise transmission. In short, this new and improved foam board has higher sealing performance and is also conducive to product sound insulation, combining sealing, sound insulation and sound absorption functions. Attached Figure Description

[0021] Figure 1 This is a front view of the foamed board for heating in Embodiment 1 of this utility model;

[0022] Figure 2 This is a side view of the foamed board for heating in Embodiment 1 of this utility model;

[0023] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0024] Figure 4 This is a schematic diagram of the structure of the heating foam board and the stepped structure after assembly in Embodiment 1 of this utility model;

[0025] Figure 5 This is a schematic diagram of the sealing element according to Embodiment 1 of this utility model;

[0026] Figure 6 This is a partial schematic diagram of the foamed board for heating in Embodiment 2 of this utility model;

[0027] Figure 7 This is a schematic diagram of the sealing element in Embodiment 2 of this utility model.

[0028] Explanation of markings in the diagram:

[0029] 1. Sheet body; 11. Protrusion; 111. First end face; 112. Second end face; 113. Mounting groove; 1131. Groove; 1132. Through hole; 12. Seal; 121. Sealing part; 122. Sealing claw; 1221. Leg; 1222. Enlarged part; 13. Sheet frame; 14. First side plate; 141. Noise-absorbing channel; 15. Second side plate; 16. Foaming material; 17. Protective plate;

[0030] 2. Stepped structure. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0033] The following is a reference to the appendix. Figure 1 To be continued Figure 7 This utility model describes a foamed board for heating and ventilation and a unit housing.

[0034] Example 1:

[0035] This embodiment provides a foamed board for heating (hereinafter referred to as foamed board). Figure 1 This is a front view of the foam board in this embodiment; Figure 2 This is a side view of the foamed board in this embodiment; as shown Figure 1 and Figure 2 As shown, the foam board is used to abut and seal the stepped structure 2. The stepped structure 2 has a bottom surface and a side surface. The foam board includes a board body 1. A protrusion 11 is provided on the outer periphery of the board body 1. The protrusion 11 includes a first end face 111 and a second end face 112. The first end face 111 is used to abut the bottom surface. A strip-shaped elastic sealing element 12 is provided on the second end face 112. The elastic sealing element 12 is used to squeeze the side surface. The sealing between the side surface and the second end face 112 is achieved by squeezing the side surface through the elastic sealing element 12.

[0036] The foam board can be installed by matching the protrusion 11 on the outer edge with the stepped structure 2, and the side wall of the stepped structure 2 can be completely sealed by the sealing element 12 on the protrusion 11, so that the sealing between the periphery of the foam board and the stepped structure 2 can be achieved simply and effectively.

[0037] When in use, the foam board can be press-fitted with the sealing parts 12 around the perimeter and the stepped structure 2. The sealing parts 12 are deformed by compression to form a sealing surface to achieve a waterproof effect. Compared with the traditional process of applying glue (structural glue) for sealing, this structure is more efficient and more reliable.

[0038] Optionally, the sealing element 12 is strip-shaped and disposed on the outer side of the second end face 112. When installation is required, the entire element deforms, so that the plate body 1 is snapped into the step structure 2.

[0039] Furthermore, the cross-section of the seal 12 includes a contact surface that abuts against the side. In this embodiment, the contact surface is an arc surface that protrudes 11 to the side. That is, the surface of the seal 121 opposite to the contact surface is an outwardly protruding arc shape.

[0040] Furthermore, Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the structure after the foam board and the stepped structure are assembled in this embodiment; Figure 5 This is a schematic diagram of the structure of the seal 12 in this embodiment. Figures 3-5 As shown, the sealing element 12 includes a sealing portion 121 and a plurality of sealing claws 122 connected to the sealing portion 121. A mounting groove 113 is provided on the second end face 112. The sealing claws 122 can be engaged in the mounting groove 113. The size of the end of the sealing claw 122 near the mounting groove 113 is larger than the size of the end of the sealing claw 122 connected to the sealing element 12. Because the foam board as a whole is interference-fitted with the sealing element 12 and the stepped structure 2 around the foam board, the sealing element 12 as a whole needs to deform when sealing is required. Ideally, only the sealing part 121 deforms, while the sealing claw 122 remains fixed. However, in reality, both the sealing claw 122 and the sealing part 121 need to deform to a certain extent, but the deformation of the sealing part 121 is much greater than that of the sealing claw 122. Therefore, in order to avoid the deformation of the sealing claw 122 affecting the installation effect of the sealing element 12 and the mounting groove 113, the specification of the end near the mounting groove 113 is designed to be larger. This can further lower the center of gravity of the sealing element 12 as a whole, ensuring the overall stability of the sealing element 12 to a certain extent, and overcoming the influence of the local deformation of the sealing claw 122 on stability, thus achieving stable sealing installation.

[0041] In this embodiment, as Figure 3 As shown, the sealing claw 122 includes a leg 1221 and an enlarged portion 1222. The leg 1221 is used to support the sealing portion 121, and the enlarged portion 1222 is disposed in the mounting groove 113. Furthermore, the size of the enlarged portion 1222 is larger than that of the leg 1221, thereby making the assembly of the sealing member 12 and the mounting groove 113 more stable.

[0042] Furthermore, such as Figure 4 and Figure 5As shown, the sealing part 121 abuts against the side wall of the stepped structure 2 at a point where it is sealed, and the position is set as an arc surface. The arc-shaped transition surface makes the interference fit more stable, allowing the operator to complete the assembly with less force.

[0043] In some embodiments, the cross-section of the seal 12 includes a sealing portion 121, a contact surface is disposed on the sealing portion 121, and two legs 1221 extend from both sides of the sealing portion 121 and the contact surface away from the contact surface, respectively. An enlarged portion 1222 is provided at the end of the leg 1221, and the width of the enlarged portion 1222 is greater than the width of the leg 1221.

[0044] Specifically, such as Figure 4 As shown, the second end face 112 is provided with a longitudinal groove 1131 and a longitudinal through hole 1132 communicating with the groove 1131. The groove 1131 accommodates the enlarged portion 1222 and the leg portion 1221 extends out of the through hole 1132 to install the seal 12 on the second end face 112. The longitudinal groove 1131 and the longitudinal through hole 1132 constitute the above-mentioned mounting groove 113, which is used to accommodate and install the sealing claw 122, that is, the enlarged portion 1222.

[0045] In some embodiments, the number of longitudinal grooves 1131 and longitudinal through holes 1132 is not less than the number of legs 1221 or enlargements 1222, thereby ensuring that the enlargements 1222 of the seal 12 always have corresponding mounting positions.

[0046] Furthermore, the board body 1 includes a board frame 13, a first side plate 14 and a second side plate 15, a protrusion 11 is disposed on the board frame 13, the first side plate 14 and the second side plate 15 are spaced apart and are both connected to the side wall of the board frame 13, the board frame 13, the first side plate 14 and the second side plate 15 form a cavity, and foam material 16 is disposed in the cavity.

[0047] Optionally, the cavity structure can further ensure the overall sound absorption effect of the foam board, achieving a triple effect of sealing, sound insulation and waterproofing.

[0048] Furthermore, the board body 1 also includes foamed material 16 disposed within the cavity, and the board body 1 also includes a sound-absorbing channel 141 disposed on the first side plate 14, the sound-absorbing channel 141 extending toward the second side plate 15 and into the foamed material 16. The sound-absorbing channel 141 has honeycomb pores.

[0049] Setting the sound-absorbing channel 141 as a honeycomb structure is beneficial for effectively absorbing and attenuating sound waves and reducing noise transmission. This type of foam board has higher sealing performance and is also beneficial for product sound insulation.

[0050] Furthermore, the honeycomb structure consists of honeycomb chambers arranged at uniform intervals in both the transverse and longitudinal directions.

[0051] In this embodiment, the plate frame 13 is rectangular and is formed by plate strips. During processing, the connection points of different plate strips are set as 45° inclined planes, and different plate strips are also connected by inclined planes.

[0052] Furthermore, the noise-absorbing channels 141 are arranged at intervals along the transverse and / or longitudinal direction of the plate frame 13. In some embodiments, the noise-absorbing channels 141 may also be arranged circumferentially along the diagonal direction or the central direction of the rectangular plate frame 13, without specific limitation.

[0053] When the foam board is installed in conjunction with the stepped structure 2, the sealing parts 12 around the foam board are pressurized and deformed to form a sealing surface, thus achieving a waterproof effect. Compared with the traditional process of applying glue (structural glue) for sealing, this structure is more efficient and more reliable, and can be applied to waterproof outdoor models.

[0054] Specifically, such as Figure 1 As shown, the plate body 1 also includes a protective plate 17, wherein the protective plate 17 is disposed on the side of the second side plate 15 away from the first side plate 14. The protective plate 17 is larger than the first side plate 14 and can cover the protrusion 11 disposed on the outer periphery of the plate body 1, thereby achieving the purpose of protecting the protrusion 11. That is to say, in actual use, the protrusion 11 will be disposed between the bottom wall of the step structure 2 and the protective plate 17, and the sealing element 12 located on the protrusion 11 can achieve sealing.

[0055] Furthermore, the first side panel 14 is an inner panel with a honeycomb structure that extends toward the second side panel 15 and into the foam material 16.

[0056] In a preferred embodiment, the foaming material 16 is polyurethane. Polyurethane has good sound absorption properties, therefore, polyurethane is selected as the filling material for the cavity in the middle of the foam board. In other embodiments, the foaming material 16 can also be made of foamed silicone and sound-absorbing cotton. Among them, foamed silicone has the advantages of being soft, non-flammable, waterproof, moderately heavy, and environmentally friendly. While sound insulation and vibration damping offer a long service life, foamed silicone still suffers from drawbacks such as mediocre sound absorption performance and high cost. Sound-absorbing cotton, primarily composed of industrial rubber and plastic carriers with added sound-absorbing particles, is nitrogen-foamed and molded, resulting in a gray-black appearance. It is commonly used in automotive noise reduction molding processes, often employing molded sound-absorbing groove designs. It also boasts advantages such as fire resistance, water resistance, corrosion resistance, sound insulation, damping, vibration recovery, and strong recyclability. Taking existing calming damping sound-absorbing cotton as an example, its underlying butyl rubber provides damping and vibration reduction, and its permanent adhesiveness allows for direct application, facilitating construction. The front is covered with microphone holes and shaped sound-absorbing grooves, effectively filtering noise of different frequencies and wavelengths. Combining vibration, sound insulation, and sound absorption, it meets all the requirements of lightweight, environmentally friendly noise reduction materials and offers good cost-effectiveness. Therefore, those skilled in the art can choose appropriate materials based on actual conditions; no specific limitations are made here.

[0057] Example 2:

[0058] The foam board provided in this embodiment is basically the same as the foam board in Embodiment 1. The difference is that the sealing part 121 and the side wall of the stepped structure 2 are sealed by a sawtooth surface. Figure 6 This is a partial schematic diagram of the foam component in this embodiment; Figure 7 This is a schematic diagram of the structure of the seal 12 in this embodiment; as shown Figure 6 and Figure 7 As shown, the serrated surface can further improve the sealing effect, making the assembled foam board and stepped structure 2 more stable and less likely to detach from the stepped structure 2 due to bumps during transportation or shaking during handling. However, compared with the arc surface of Embodiment 1, the serrated sealing part 121 requires the operator to use greater force to complete the assembly.

[0059] In some embodiments, the contact surface may be a wavy surface or other structures, which are not specifically limited here.

[0060] The processing steps of the foamed board are as follows: On the workshop work platform, four 45° beveled strips of board are spliced ​​together to form a rectangular board frame 13, and then the board frame 13 is fixed firmly with tooling fixtures; then, the first side plate 14 and the second side plate 15 are successively overlapped on the board frame 13 structure. Then, the first side plate 14 and the second side plate 15 can be glued and fixed to the board frame 13 by adhesive (such as glue). At this time, the board frame 13 forms a cavity. After all the materials are fixed, the first side plate 14 is held down by a hydraulic press, and the foaming machine injects an appropriate amount of polyurethane foam material 16 into the cavity until the cavity is filled. Finally, the sealing element 12 is installed in the mounting groove 113 slot of the second end face 112, and the foamed board of Embodiment 1 or this embodiment is finally formed.

[0061] Example 3:

[0062] This embodiment provides a unit housing, including a stepped structure 2 and a heating foam board for the above embodiment or embodiment. The foam board cooperates with the stepped structure 2 and abuts against the side of the stepped structure 2 through an elastic sealing member 12 to seal the unit housing.

[0063] The unit's casing is assembled and sealed using the aforementioned foam board and stepped structure 2. Furthermore, the filling material in the middle of the foam board is polyurethane, which has excellent sound absorption properties. In addition, compared to traditional foam boards, this foam board is equipped with honeycomb-shaped sound-absorbing channels 141. That is to say, the interior of the foam board body 1 is essentially divided into individual open chambers, which is more conducive to effectively absorbing and attenuating sound waves and reducing noise transmission. In short, this newly improved foam board has higher sealing performance and is also beneficial to product sound insulation, combining sealing, sound insulation, and sound absorption functions.

[0064] In some embodiments, the stepped structure 2 is configured as a perforated structure to form a trapezoidal groove structure. The foamed board is covered in the trapezoidal groove and can be fully abutted against the side wall of the trapezoidal groove by means of the strip-shaped elastic seal 12, thereby achieving the sealing of the unit housing.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A foamed board for heating and ventilation, used to abut and seal a stepped structure, said stepped structure having a bottom surface and side surfaces, characterized in that, The foamed board includes a board body, and a protrusion is provided on the outer periphery of the board body. The protrusion includes a first end face and a second end face. The first end face is used to abut against the bottom surface, and a strip-shaped elastic sealing element is provided on the second end face. The elastic sealing element is used to squeeze the side surface, thereby achieving a seal between the side surface and the second end face by squeezing the side surface with the elastic sealing element.

2. The foamed board for heating and ventilation according to claim 1, characterized in that, The cross-section of the seal includes a contact surface that abuts against the side, and the contact surface is a wavy surface, a sawtooth surface, or an arc surface that protrudes towards the side.

3. The foamed board for heating and ventilation according to claim 2, characterized in that, The cross-section of the seal includes a sealing portion, the contact surface is disposed on the sealing portion, and two legs extend from both sides of the sealing portion and the contact surface away from the contact surface, respectively. The ends of the legs are provided with enlarged portions, the width of which is greater than the width of the legs.

4. The foamed board for heating and ventilation according to claim 3, characterized in that, The second end face is provided with a longitudinal groove and a longitudinal through hole communicating with the groove. The enlarged part is accommodated through the groove and the leg extends out from the through hole to install the seal on the second end face.

5. The foamed board for heating and ventilation according to claim 3, characterized in that, The surface of the sealing part opposite to the contact surface is an outwardly convex arc shape.

6. The foamed board for heating and ventilation according to claim 1, characterized in that, The board body includes a board frame, a first side plate and a second side plate. The protrusion is disposed on the board frame. The first side plate and the second side plate are spaced apart and are both connected to the side wall of the board frame. The board frame, the first side plate and the second side plate form a cavity, and foaming material is disposed in the cavity.

7. The foamed board for heating and ventilation according to claim 6, characterized in that, The first side panel is an inner panel, which has a honeycomb structure that extends toward the second side panel and into the foamed material.

8. The foamed board for heating and ventilation according to claim 7, characterized in that, The honeycomb structure consists of honeycomb chambers arranged at uniform intervals in both the horizontal and vertical directions.

9. The foamed board for heating according to any one of claims 6 or 7, characterized in that, The foaming material is polyurethane.

10. A unit casing, characterized in that, The unit includes a stepped structure and a foamed board for heating as described in any one of claims 1-9, wherein the foamed board cooperates with the stepped structure and abuts against the side of the stepped structure through the elastic seal to seal the unit housing.

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