Injection molding sheet heat exchange core installed firmly

By using an injection-molded sheet structure surrounded by angled side plates and guide rods in the fresh air system, and utilizing point-to-point insertion connection of protruding accessories and embedded cavities, as well as the design of limiting grooves and sliding strips, the problem of unstable installation of injection-molded sheets in the heat exchange core is solved, resulting in a more stable heat exchange core structure.

CN224175710UActive Publication Date: 2026-04-28ZHONGSHAN LIDIYING PLASTIC PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN LIDIYING PLASTIC PROD CO LTD
Filing Date
2025-04-27
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In existing fresh air systems, the injection-molded sheets of the heat exchange core are prone to problems such as inability to install, instability, and misalignment during the stacking process, leading to detachment.

Method used

The injection-molded sheet structure, which is surrounded by angled side plates and flow guide rods, achieves a stable connection of the injection-molded sheet through point-to-point insertion of protruding accessories and embedded cavities, combined with limiting grooves and limiting slides.

Benefits of technology

This improves the overall stability of the heat exchange core, prevents the injection molded sheets from separating vertically and horizontally, and ensures the reliability and stability of the installation.

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Abstract

The utility model discloses a firmly installed injection molding sheet heat exchange core which comprises injection molding sheet bodies, the heat exchange core is formed by stacking a plurality of injection molding sheet bodies, each injection molding sheet body is formed by two included angle side plates which are arranged in a bilateral symmetry mode and a plurality of flow guide supporting rods which are connected with the two included angle side plates in a surrounding mode, and the flow guide supporting rods are connected with the two included angle side plates. The included angle side plate is provided with a protruding accessory and an embedded concave cavity, the protruding accessory and the embedded concave cavity can enable a plurality of injection molding sheet bodies to be assembled in a stacked mode, the protruding accessory and the embedded concave cavity are connected in a point-to-point inserting mode, and the included angle side plate is provided with a limiting groove and a limiting sliding strip which enable the injection molding sheet bodies to be reinforced and fastened. According to the injection molding piece, the protruding accessories and the embedded concave cavities are connected in a point-to-point inserting mode, so that the injection molding piece bodies are connected and are prevented from being separated up and down, and then the injection molding piece bodies are prevented from transversely rotating or displacing under the action of the limiting grooves and the limiting sliding strips, so that the injection molding piece bodies are installed and are not prone to falling off accidentally, and the service life of the injection molding piece bodies is prolonged. The whole heat exchange core is stable in structure.
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Description

Technical Field

[0001] This utility model relates to the field of internal components of fresh air systems, and in particular to an injection-molded heat exchange core that is installed and secured. Background Technology

[0002] A fresh air system is a system that processes outdoor air using purification technology to produce clean air that meets health requirements before delivering it into indoor rooms. Installing a fresh air system provides fresh air, removes harmful gases, prevents mold and odors, reduces noise pollution, and avoids the influx of dust from open windows. Existing fresh air systems typically include a heat exchange core, which is composed of multiple stacked injection-molded sheets. The current method for stacking these sheets involves aligning them along the edges and then fitting them together using columns and recesses. While this method provides a certain degree of tightness, tolerances can easily occur in different parts of the injection-molded sheets, leading to issues such as inability to install, instability, or misalignment during assembly. Furthermore, simply using the interlocking method can cause the sheets to detach from each other. Therefore, a more sophisticated installation structure for the core is needed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a more stable and reliable heat exchange core, which is composed of injection molded sheets with a novel installation structure.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] A heat exchange core for mounting and securing injection molded sheet includes an injection molded sheet body. The heat exchange core is composed of multiple injection molded sheet bodies stacked together. Each injection molded sheet body is surrounded by two symmetrically arranged angled side plates and multiple flow guide rods connecting the two angled side plates. The angled side plates are provided with protruding fittings and insert cavities that allow multiple injection molded sheet bodies to be stacked and assembled. The protruding fittings and insert cavities are connected by point-to-point insertion. The angled side plates are provided with limiting grooves and limiting slides to reinforce and secure the multiple injection molded sheet bodies.

[0006] Furthermore, in this utility model, a through groove is provided on one side of the included angle plate, the protruding accessory is provided on the included angle plate and located outside the edge of the through groove, the fitting cavity is provided in the through groove and located on the wall surface on the same side as the protruding accessory, a through hole is provided on the protruding accessory, and an insert post is provided in the fitting cavity.

[0007] Furthermore, in this invention, the injection molded sheet body can be inserted into the mounting cavity of another injection molded sheet body through a protruding accessory.

[0008] Furthermore, the point-to-point insertion connection in this utility model is a connection where the insertion post is aligned with the through hole and inserted.

[0009] Furthermore, the limiting groove in this utility model is set on the outer corner of the included angle plate, and the limiting groove has an anti-bending angle.

[0010] Furthermore, in this utility model, the limiting slide bar on both sides can be inserted into the limiting grooves of multiple injection-molded sheet bodies to achieve limiting.

[0011] Furthermore, in this utility model, two flow guide rods are provided on the same side and are located on the upper and lower sides of the included angle plate, respectively, and the two flow guide rods on the same side are staggered.

[0012] Furthermore, the injection-molded sheet body of this utility model is provided with a flow guide strip inside, and the two ends of the flow guide strip are respectively disposed on the flow guide support rods on both sides.

[0013] In summary, the advantages of this utility model over the prior art are:

[0014] This utility model uses protruding accessories and embedded cavities to connect the injection molded sheet bodies through point-to-point insertion, so as to connect the individual injection molded sheet bodies and prevent them from separating vertically. Furthermore, under the action of limiting grooves and limiting slides, the individual injection molded sheet bodies are prevented from rotating or shifting laterally, so that the individual injection molded sheet bodies can be installed and are not easy to fall off accidentally. The overall heat exchange core structure is stable. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the heat exchange core of this utility model;

[0016] Figure 2 This is a three-dimensional schematic diagram of the injection-molded sheet body of this utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the limiting groove and limiting slide bar of this utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of the included angle side plate of this utility model. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0020] like Figures 1 to 4The present invention preferably provides an injection-molded sheet heat exchange core for secure installation, comprising an injection-molded sheet body 1. The heat exchange core is composed of multiple injection-molded sheet bodies 1 stacked together. Each injection-molded sheet body 1 is surrounded by two symmetrically arranged angled side plates 2 and multiple flow guide rods 3 connecting the two angled side plates 2. The angled side plates 2 are provided with protruding fittings 4 and recessed cavities 5 for stacking and assembling multiple injection-molded sheet bodies 1. The protruding fittings 4 and recessed cavities 5 are connected by point-to-point insertion. The angled side plates 2 are provided with limiting grooves 6 and limiting slides 7 for reinforcing and securing the multiple injection-molded sheet bodies 1. There are two angled side plates, each with an included angle, forming a hexagonal perimeter with the flow guide rods. Each injection-molded sheet body has protruding fittings and recessed cavities. Through point-to-point insertion connection, each injection-molded sheet body can be assembled by inserting the protruding fittings on its upper side into the recessed cavities to stack and form a heat exchange core. Subsequently, limiting slides are inserted into the limiting grooves on each injection-molded sheet body for further fixation.

[0021] In this invention, the included-angle plate 2 has a through groove 21 on one side. The protruding accessory 4 is disposed on the included-angle plate 2 and located outside the edge of the through groove 21. The fitting cavity 5 is disposed within the through groove 21 and located on the same side wall as the protruding accessory 4. The protruding accessory 4 has a through hole 22, and the fitting cavity 5 has an insert post 23. The through groove is used for inserting the protruding accessory, allowing it to be embedded in the fitting cavity. Furthermore, the through hole of the protruding accessory connects with the insert post of the fitting cavity, which is a point-to-point insertion connection. The fitting cavity is concave, so after the protruding accessory is inserted, the injection molded sheet bodies are aligned, and the edges are flush.

[0022] In this utility model, the injection molded sheet body 1 can be inserted into the mounting cavity 5 of another injection molded sheet body 1 through the protruding accessory 4.

[0023] The point-to-point insertion connection described in this utility model is a connection where the insertion post 23 is aligned with the through hole 22 and inserted.

[0024] In this invention, the limiting groove 6 is located on the outer corner of the included-angle side plate 2, and the limiting groove 6 has an anti-disengagement bend angle 61. The anti-disengagement bend angle is to prevent the limiting slide from coming out after it is inserted.

[0025] In this invention, the limiting slide bar 7 can be inserted into the limiting grooves 6 of multiple injection molded sheet bodies 1 on both sides to achieve limiting. The cooperation between the limiting slide bar and the limiting groove ensures that each injection molded sheet body will not move laterally or rotate. After the connection of the protruding accessories and the embedded cavity, the entire heat exchange core is installed stably.

[0026] In this invention, two flow guide rods 3 are arranged on the same side and located on the upper and lower sides of the included angle plate 2, respectively. The two flow guide rods 3 on the same side are staggered. The staggered arrangement of the two flow guide rods ensures that they will not interfere with each other when the two injection molded sheet bodies are stacked.

[0027] In this invention, the injection-molded sheet body 1 has a guide strip 11 inside, and the two ends of the guide strip 11 are respectively disposed on the guide support rods 3 on both sides. The guide strip is S-shaped, and the stacking of multiple guide strips forms an S-shaped air duct, which can increase the residence time of air in the air duct, thereby improving the heat exchange efficiency.

[0028] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat exchange core for mounting and fastening injection-molded sheet, comprising an injection-molded sheet body (1), wherein the heat exchange core is composed of a plurality of injection-molded sheet bodies (1) stacked together, characterized in that: The injection molded sheet body (1) is formed by two symmetrically arranged angled side plates (2) and multiple flow guide rods (3) connecting the two angled side plates (2). The angled side plates (2) are provided with protruding accessories (4) and embedded cavities (5) that allow multiple injection molded sheet bodies (1) to be stacked and assembled. The protruding accessories (4) and embedded cavities (5) are connected by point-to-point insertion. The angled side plates (2) are provided with limiting grooves (6) and limiting slides (7) to strengthen and fasten multiple injection molded sheet bodies (1).

2. The injection-molded sheet heat exchange core for secure mounting according to claim 1, characterized in that: A through groove (21) is provided on one side of the included side plate (2). The protruding fitting (4) is provided on the included side plate (2) and located outside the edge of the through groove (21). The fitting cavity (5) is provided in the through groove (21) and located on the wall surface on the same side as the protruding fitting (4). A through hole (22) is provided on the protruding fitting (4). A post (23) is provided in the fitting cavity (5).

3. The injection-molded sheet heat exchange core for secure mounting according to claim 1, characterized in that: The injection molded sheet body (1) can be inserted into the mounting cavity (5) of another injection molded sheet body (1) through the protruding fitting (4).

4. The injection-molded sheet heat exchange core for secure mounting according to claim 2, characterized in that: The point-to-point insertion connection is a connection in which the insert (23) is aligned with the through hole (22) and inserted.

5. The injection-molded sheet heat exchange core for secure mounting according to claim 1, characterized in that: The limiting groove (6) is set on the outer corner of the included side plate (2), and the limiting groove (6) has an anti-bending angle (61).

6. The injection-molded sheet heat exchange core for secure mounting according to claim 1, characterized in that: The limiting slide bar (7) can be inserted into the limiting groove (6) of multiple injection molded sheet bodies (1) on both sides to achieve limiting.

7. The injection-molded sheet heat exchange core for secure mounting according to claim 1, characterized in that: Two flow guide rods (3) are provided on the same side and are located on the upper and lower sides of the included side plate (2) respectively. The two flow guide rods (3) on the same side are staggered.

8. The injection-molded sheet heat exchange core for secure mounting according to claim 1, characterized in that: Inside the injection molding sheet body (1), there is a flow guide strip (11), and the two ends of the flow guide strip (11) are respectively set on the flow guide support rods (3) on both sides.