Blister corrugated total heat exchange core

Abstract

The invention relates to the field of heat exchange core bodies, in particular to a blister corrugated total heat exchange core body which comprises a plurality of base plates, the base plates are stacked one by one to form the core body, key grooves are formed in the edges of the front faces of the base plates, key strips are arranged on the back faces of the base plates, and the key strips and the key grooves on every two adjacent base plates are matched in an inserted connection mode. The adhesive tape is not easy to fall off, and is free of adhesive pollution.

Description

Technical Field

[0001] The present application relates to the field of heat exchange cores, and in particular to a blister corrugated full heat exchange core. Background Art

[0002] The full heat exchange core is an energy-saving device used for air conditioning exhaust energy recovery. When used in air conditioning systems, it can use exhaust air to pre-cool and dry fresh air in summer and pre-heat and humidify fresh air in winter, which significantly reduces the fresh air load and saves energy consumption of the cooling and heating systems. It is very beneficial for small system scales, saving operating costs and reducing peak power consumption, and plays an irreplaceable role in the field of energy saving in air conditioning systems.

[0003] Regarding the above-mentioned related technologies, the existing heat exchange core structure is generally more universal. Major manufacturers basically use multiple heat exchange chips stacked together, and the multiple heat exchange chips are combined by hot pressing or gluing. The gluing method has the problems of glue pollution and difficult operation. Summary of the invention

[0004] In order to ensure the fixed stability of the heat exchange core structure, maintain no glue pollution, and make the operation easier, the present application provides a blister corrugated full heat exchange core.

[0005] The present application provides a blister corrugated full heat exchange core, which adopts the following technical solution: A blister corrugated full heat exchange core comprises a plurality of substrates, wherein the plurality of substrates are stacked one by one to form a core, a key slot is arranged on each edge of the front side of the substrate, a key strip is arranged on the back side of the substrate, and the key strips on two adjacent substrates are plugged into and matched with the key slots.

[0006] By adopting the above technical solution, the plug-in cooperation of the key slot and the key strip can effectively connect the various base plates firmly together, avoiding relative movement or looseness between the base plates. Thus, the stability of the entire heat exchange core is enhanced, making it more solid and durable during use, not only not easy to fall off, but also without glue pollution; and the plug-in mode of the key slot and the key strip makes the connection between the base plates easier, thereby making the operation easier.

[0007] Preferably, a supporting protrusion is provided on the back side of the substrate, and when two adjacent substrates are stacked, the supporting protrusion abuts against the front side of another substrate.

[0008] By adopting the above technical solution, the support protrusions and the substrate plane are in contact and used as support, and the stability and firmness of the overall structure are enhanced.

[0009] Preferably, the base plate is hexagonal, and a bent windshield protrusion is integrally formed on the front side of the base plate, each of the windshield protrusions covers two interconnected sides of the front side of the base plate, and two groups of sides covered by the windshield protrusions are arranged opposite to each other.

[0010] By adopting the above technical solution, the wind shielding protrusion not only guides the airflow, but also enhances the mechanical stability of the substrate by covering multiple edges of the substrate. In this way, the edge of the substrate is not easily bent or damaged by external forces, thereby extending the service life of the substrate.

[0011] Preferably, a plurality of convex strips are arranged in the middle of the substrate, the plurality of convex strips are parallel to each other and the convex strips are parallel to two sides of the substrate, and the plurality of convex strips form a corrugated structure.

[0012] By adopting the above technical solution, the corrugated structure greatly improves the bending resistance of the substrate through the design of the convex strips. The parallel convex strips support each other and disperse the external force, thereby effectively enhancing the rigidity and overall strength of the substrate; the corrugated convex strip structure can effectively increase the contact area of ​​the substrate surface, thereby improving the heat conduction efficiency.

[0013] Preferably, a plurality of support columns are respectively arranged on both sides of the front side of the substrate adjacent to the corrugated structure, and the support columns on the front side of the substrate abut against the back side of the adjacent substrate.

[0014] By adopting the above technical solution, the addition of support columns can effectively improve the overall stability of the substrate and prevent the substrate from bending or warping. The corrugated structure itself has a certain rigidity, but after adding parallel support columns on both sides, the substrate's anti-bending and anti-deformation capabilities can be further enhanced. The support columns provide additional support force, share the external load, and enhance the substrate's bearing capacity.

[0015] Preferably, the core is located between every two wind shielding protrusions located on the same base plate and two air flow openings for air flow to pass through are formed between the two base plates, and two adjacent base plates are mirror-symmetrical about the perpendicular midline in the length direction of the corrugated structure.

[0016] By adopting the above technical solution, multiple substrates are bonded together to form a full heat exchange core, and multiple channels are formed between adjacent substrates through airflow ports and wind shielding protrusions. This design increases the heat exchange contact area between the substrates, and the airflow passes through multiple channels, which can more effectively contact the substrate surface, thereby improving the heat exchange efficiency.

[0017] Preferably, a second flow channel is formed between every two of the convex strips, and the air flow passes through the air flow opening, the second flow channel, and the air flow opening arranged on the other side of the corrugated structure in sequence.

[0018] By adopting the above technical solution, the airflow is guided through multiple flow channels (second flow channels), so that the airflow can flow in multiple channels, thereby increasing the contact area between the airflow and the heat exchange surface. The flow path of the airflow is optimized, so that the airflow exchanges heat on multiple structural surfaces, thereby improving the heat exchange efficiency.

[0019] Preferably, there are two supporting protrusions on each of the substrates, and the two supporting protrusions are respectively located at two opposite corners of the substrate.

[0020] By adopting the above technical solution, supporting protrusions are respectively provided at the two corners of the base plate, which can ensure that the components can be accurately docked and fixed in the correct position during installation. This diagonally symmetrical layout can provide better positioning accuracy during installation, avoid offset or asymmetric installation, and enhance the stability of the overall structure; by symmetrically arranging the supporting protrusions at the corners of the base plate, it can be ensured that the base plate has good symmetry and balance when connected to other components. The structural symmetry helps to improve the stability of the overall system, especially under dynamic load or vibration environment.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. The key slot and key bar can effectively connect the base plates together firmly, avoiding relative movement or looseness between the base plates. This enhances the stability of the entire heat exchange core, making it more durable during use, not only not easy to fall off, but also free of glue pollution; and the key slot and key bar plug-in method makes the connection between base plates easier, making the operation easier; 2. The wind-blocking protrusions not only guide the airflow, but also enhance the mechanical stability of the substrate by covering multiple corners and edges of the substrate. In this way, the edge of the substrate is not easily bent or damaged by external forces, extending the service life of the substrate; 3. The corrugated structure greatly improves the substrate's anti-bending ability through the design of ribs. Parallel ribs support each other and disperse the external force, thereby effectively enhancing the rigidity and overall strength of the substrate; the corrugated rib structure can effectively increase the contact area of ​​the substrate surface, thereby improving the heat conduction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the blister corrugated full heat exchange core of the embodiment of the present application.

[0023] Figure 2 It is an exploded schematic diagram of the blister corrugated full heat exchange core of the embodiment of the present application, mainly showing the supporting protrusions.

[0024] Figure 3It is a front view of the blister corrugated full heat exchange core of the embodiment of the present application.

[0025] Figure 4 This is the airflow path of the blister corrugated full heat exchange core of the embodiment of the present application.

[0026] Explanation of the reference numerals: 1. substrate; 21. key slot; 22. key strip; 31. support protrusion; 41. wind shield protrusion; 42. air flow outlet; 5. corrugated structure; 51. convex strip; 52. second flow channel; 6. support column; 61. first flow channel. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0028] The present application embodiment discloses a blister corrugated full heat exchange core. Figure 1 ,picture, Figure 3 A blister corrugated full heat exchange core includes a plurality of substrates 1, which are stacked one by one, and the front and back surfaces of two adjacent substrates 1 are bonded to each other. The plurality of substrates 1 are bonded to each other to form a full heat exchange core. The substrate 1 can be formed by blistering polyurethane material, polyester material or polyamide material, which is moisture permeable and gas-blocking, and has high moisture permeability and good gas barrier properties, thereby reducing the addition of heat exchange membranes and reducing production steps. A key slot 21 is integrally formed on each edge of the front of the substrate 1, and the back of the substrate 1 is recessed by the key slot 21 to form a key bar 22, so that the key bar 22 can be fully inserted into the key slot 21, and the key bars 22 on two adjacent substrates 1 are plugged and matched with the key slot 21. This structural design eliminates the glue pollution problem caused by the traditional gluing method, simplifies the assembly process, and improves production efficiency.

[0029] Specifically, the substrate 1 is a hexagon, which can better adapt to various spatial layouts and improve space utilization. The thickness of the substrate 1 can be adjusted according to actual needs, and the entire substrate 1 layout structure is a 0.5mm thick vacuum forming structure. A keyway 21 is provided on each side of the front of the substrate 1, and the cross-section of the keyway 21 can be rectangular, circular or trapezoidal. The length and width of the keyway 21 need to be designed according to actual usage to ensure that the key bar 22 can be smoothly inserted and fixed. The surface of the keyway 21 can be smoothed to reduce friction and facilitate the insertion and removal of the key bar 22.

[0030] The two groups of adjacent sides of the substrate 1 are respectively integrally formed with bent windshield protrusions 41. The outer edge of the windshield protrusion 41 is an extension of the edge of the material structure vacuum molding, and is not an independent material. It is a necessary structure to achieve the air tightness of the core and support windshield. Each windshield protrusion 41 covers a group of adjacent long sides and short sides of the substrate 1, and covers the three corners on the two adjacent sides. The two groups of sides covered with windshield protrusions 41 are arranged oppositely and the two groups of adjacent sides are symmetrically distributed, which can effectively guide the airflow, reduce wind resistance, and improve air circulation. The height and width of the windshield protrusion 41 need to be designed according to actual use. The design of the windshield protrusion 41 is mainly used to block the external airflow from directly entering the interior of the heat exchange core, reduce the possibility of airflow short circuit, and improve the heat exchange efficiency. The windshield protrusion can be manufactured integrally with the substrate through an injection molding process to ensure the stability and consistency of its structure. The base plate 1 is designed to be hexagonal, and a wind shielding protrusion 41 is provided on the base plate 1, which not only improves the structural stability of the heat exchange core, but also effectively improves the airflow distribution, reduces the airflow short circuit phenomenon, and thus improves the heat exchange efficiency. This design is particularly suitable for applications with limited space, such as home air conditioning systems and small commercial buildings, and can save installation space while ensuring performance. In addition, a support protrusion 32 is integrally formed on two opposite corners on the back of every other substrate 1. The support protrusion 32 is a recessed vacuum-formed product. The two corners are respectively located on two windshield protrusions 41. When two adjacent substrates 1 are stacked, the support protrusion 32 abuts against the surface of the windshield protrusion 41 on the front of the other substrate 1.

[0031] Finally, a plurality of convex strips 51 are integrally formed in the middle of the substrate 1. The convex strips 51 are designed to increase the rigidity and heat exchange area of ​​the substrate. The convex strips 51 can be made of the same material as the substrate and can be integrally manufactured with the substrate through an injection molding process. The cross-section of the convex strips 51 can be designed into a variety of shapes such as a triangle, a semicircle or a rectangle to meet different heat exchange requirements. For example, a convex strip with a triangular cross-section can increase the surface area and improve the heat exchange efficiency; a convex strip with a semicircular cross-section can reduce the airflow resistance and increase the speed of airflow. The plurality of convex strips 51 are parallel to each other and the two sides of the convex strips 51 that are parallel to the substrate 1 are parallel to each other. The plurality of convex strips 51 are adjacent to each other in sequence to form a corrugated structure. This design further increases the heat exchange area and improves the heat exchange efficiency. At the same time, it enhances the rigidity of the substrate 1 and improves the stability of the heat exchange core. A second flow channel is formed between every two convex strips 51. The substrate (1) is located on both sides of the corrugated structure and is provided with a plurality of support columns 6. The support column 6 on the front side of the substrate 1 abuts against the back side of the adjacent substrate 1. The main function of the support column 6 is to enhance the rigidity of the substrate 1 and prevent the substrate 1 from deforming during use. The support column 6 can be made of the same material as the substrate 1 and manufactured integrally with the substrate 1 through an injection molding process. The vertical cross-section of the support column 6 can be designed into a variety of shapes such as rectangular, T-shaped or L-shaped to meet different support requirements. For example, a support column 6 with a rectangular cross-section can provide uniform support force, and a support column 6 with a T-shaped cross-section can provide stronger bending resistance. Multiple support columns 6 are parallel to each other, and a first flow channel 61 is formed between every two support columns 6. This design further enhances the rigidity of the substrate 1, improves the stability of the heat exchange core, and optimizes the flow path of the airflow, thereby improving the heat exchange efficiency.

[0032] Reference Figure 3 , Figure 4 , the two adjacent substrates 1 are mirror-symmetrical with the perpendicular midline in the length direction of the corrugated structure, so that the directions of the windshield protrusions 41 of the two adjacent substrates 1 are mirror-symmetrical, and when the front and back sides of the two adjacent substrates 1 are attached to each other, the two windshield protrusions 41 and the two substrates 1 form two airflow openings 42 for airflow to pass through, and the sides of the two windshield protrusions 41 close to each other and the two substrates 1 are respectively the two sides of the airflow openings 42 that are parallel to each other, and the two adjacent airflow openings in the height direction of the full heat exchange core are mirror-symmetrical, and the airflow passes through the airflow opening 42, the first flow channel 61, the second flow channel 52, the first flow channel 61 set on the other side of the corrugated structure, and the airflow opening 42 set on the other side of the corrugated structure in sequence to form an airflow path. At this time, the airflow path can be parallel to the three edges of the substrate 1, and the airflow path is S-shaped. Due to the mirror distribution, the airflow paths on the two adjacent substrates 1 intersect in the plane parallel to the substrate 1. The two adjacent substrates 1 can flow fresh air and exhaust air respectively, thereby realizing the heat and humidity exchange between fresh air and exhaust air.

[0033] Effects of the materials used for the above substrates: 1. Polyester film (PET): Thermoforming: PET is a common thermoplastic that can soften when heated and be formed through the thermoforming process. It is widely used to manufacture film substrates1.

[0034] Moisture vapor permeability: PET has good moisture vapor permeability and can achieve the required moisture vapor permeability performance in some cases.

[0035] Gas barrier properties: PET has certain barrier properties to gases such as oxygen and carbon dioxide, which makes it commonly used in food packaging and other fields.

[0036] 2. Polyamide film (Nylon, PA): Blister molding: Polyamide film has good thermoplasticity and can be formed by the blister process, which is very common in film packaging and electronic substrate applications.

[0037] Moisture Vapor Permeability: Polyamide has relatively high moisture vapor permeability and is suitable for use in applications where high moisture vapor transmission is required.

[0038] Gas barrier properties: Polyamide also has good gas barrier properties, especially for oxygen.

[0039] 3. Polyurethane film (PU) Blister molding: Polyurethane (PU) is a thermoplastic material that can be used in the blister process. It has good flexibility and plasticity and is suitable for substrate 1.

[0040] Moisture vapor permeability: The moisture vapor permeability of polyurethane film is relatively high, making it suitable for use in situations where moisture permeability is required.

[0041] Gas barrier properties: PU has certain gas barrier properties, especially under the requirement of low oxygen permeability, PU film is often used in the medical and packaging industries.

[0042] The implementation principle of the blister corrugated full heat exchange core of the present application embodiment is as follows: the plug-in cooperation of the key slot 21 and the key strip 22 can effectively connect the various substrates 1 together firmly, avoiding relative movement or looseness between the substrates 1. Thus, the stability of the entire heat exchange core is enhanced, making it more durable during use, not only not easy to fall off, but also without glue pollution; and the plug-in mode of the key slot 21 and the key strip 22 makes the connection between the substrates 1 easier, thereby making the operation easier.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A blister corrugated full heat exchange core, characterized in that: The invention comprises a plurality of substrates (1), wherein the plurality of substrates (1) are stacked one on top of another to form a core body, wherein each edge of the front side of the substrate (1) is provided with a key slot (21), and the back side of the substrate (1) is provided with a key bar (22), and the key bars (22) on two adjacent substrates (1) are plugged into and matched with the key slots (21).

2. The blister corrugated full heat exchange core according to claim 1, characterized in that: A supporting protrusion (32) is provided on the back side of the substrate (1), and when two adjacent substrates (1) are stacked, the supporting protrusion (32) abuts against the front side of another substrate (1).

3. The blister corrugated full heat exchange core according to claim 2, characterized in that: The base plate (1) is hexagonal, and a bent windshield protrusion (41) is integrally formed on the front of the base plate (1), each windshield protrusion (41) covers two mutually connected sides of the front of the base plate (1), and two groups of sides covered by the windshield protrusions (41) are arranged opposite to each other.

4. The blister corrugated full heat exchange core according to claim 3, characterized in that: A plurality of convex strips (51) are arranged in the middle of the substrate (1); the plurality of convex strips (51) are parallel to each other and the convex strips (51) and two sides of the substrate (1) are parallel to each other; the plurality of convex strips (51) form a corrugated structure (5).

5. The blister corrugated full heat exchange core according to claim 4, characterized in that: The front side of the substrate (1) is located next to the corrugated structure, and a plurality of support columns (6) are respectively arranged on both sides thereof, and the support columns (6) on the front side of the substrate (1) abut against the back side of an adjacent substrate (1).

6. The blister corrugated full heat exchange core according to claim 5, characterized in that: The core is located between each of the two wind shielding protrusions (41) located on the same base plate (1), and two airflow openings (42) are formed between the two base plates (1) for airflow to pass through, and the two adjacent base plates (1) are mirror-symmetrical about the perpendicular midline in the length direction of the corrugated structure.

7. The blister corrugated full heat exchange core according to claim 6, characterized in that: A second flow channel (52) is formed between every two of the convex strips (51), and the airflow passes through the airflow opening (42), the second flow channel (52), and the airflow opening (42) arranged on the other side of the corrugated structure in sequence.

8. The blister corrugated full heat exchange core according to claim 2, characterized in that: There are two supporting protrusions (32) on each substrate (1), and the two supporting protrusions (32) are respectively located at two opposite corners of the substrate (1).

Images