A sealing installation structure of a fresh air machine exchange core

Abstract

The utility model discloses a new fan exchange core's sealed mounting structure, including box, exchange core and sealed compression strip, the inner wall of box is equipped with upper locating seat, side locating seat and lower locating seat, and the lower locating seat is equipped with first locating groove, the outside wall on upper locating seat and side locating seat is equipped with the recess groove, the sealed compression strip is embedded in recess groove, the exchange core bottom end angle part is opposite with first locating groove, and the exchange core side end and top end angle part are respectively with sealed compression strip positioning opposite, the sealed compression strip is equipped with second locating groove in, the upper wall of second locating groove is equipped with the first clamping strip of downward extension, and the lower wall of second locating groove is equipped with the second clamping strip of upward extension. The utility model discloses sealed compression strip can form the elastic clamping to exchange core side end and top end angle part, realizes three -dimensional close positioning, makes exchange core realize stable sealing under the action of thermal expansion and contraction and vibration, avoids the exchange core and leaks, effectively improves the heat exchange efficiency of exchange core.

Description

Technical Field

[0001] This utility model relates to the field of fresh air systems, and in particular to a sealed installation structure for the exchange core of a fresh air system. Background Technology

[0002] A fresh air system is an air handling device that introduces fresh outdoor air and exhausts stale indoor air to achieve indoor-outdoor air exchange. It is widely used in environments requiring air purification, such as residences, office buildings, and public places. The heat exchange core, as the core component of the fresh air system for heat exchange and air purification, has a significant impact on the overall heat exchange efficiency, airtightness, and operational stability of the unit due to its installation and sealing structure.

[0003] In existing technologies, the traditional installation method of the exchange core in fresh air units generally uses simple clips or pressure plates to fix it inside the fresh air unit. It is difficult to achieve reliable limiting and airtight sealing in multiple directions. This can easily lead to displacement of the exchange core due to airflow impact and vibration during operation, resulting in gaps, cross-contamination of airflow, and affecting the air purification effect of the fresh air unit. Moreover, during the operation of the fresh air unit, the exchange core is easily affected by thermal expansion and contraction. Over long-term use, the sealing structure is prone to failure, resulting in loose seals or structural deformation, affecting the airtightness and operational reliability of the fresh air unit.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a sealing installation structure for a fresh air exchange core that has good sealing effect, is easy to install, and improves operational reliability.

[0006] To achieve this objective, the present invention adopts the following technical solution: a sealed installation structure for a fresh air exchange core, comprising a housing, an exchange core, and a sealing strip;

[0007] The enclosure has a receiving chamber, the exchange core is located in the receiving chamber, and the inner wall of the enclosure is provided with an upper positioning seat, a side positioning seat and a lower positioning seat. The two side positioning seats are respectively located on the left and right sides of the enclosure, the upper positioning seat is located at the top of the enclosure, and the lower positioning seat is located at the bottom of the enclosure.

[0008] The lower positioning seat is provided with a first positioning groove, and the outer side walls of the upper positioning seat and the side positioning seat are provided with slots. The sealing strip is embedded in the slots. The bottom corner of the exchange core abuts against the first positioning groove, and the side and top corners of the exchange core abut against the sealing strip respectively.

[0009] The sealing strip is provided with a second positioning groove, which is used to abut against the corner of the exchange core. The upper wall of the second positioning groove is provided with a downwardly extending first retaining strip, and the lower wall of the second positioning groove is provided with an upwardly extending second retaining strip.

[0010] The first and second locking strips are offset from each other, and the first and second locking strips are used to elastically abut against the surface of the exchange core when the corner of the exchange core extends into the second positioning groove.

[0011] In the above technical solution, the sealing installation structure of the fresh air exchange core is provided with guide ribs on the upper and lower walls of the sealing strip, and the guide ribs are used to limit the contact with the inner wall of the slot.

[0012] Using the above technical solution, in the sealed installation structure of the fresh air exchange core, the upper and lower ends of the opening of the second positioning groove are respectively provided with limiting baffles. The limiting baffles are used to adhere to the side wall of the upper positioning seat or the side positioning seat when the sealing strip is embedded into the slot.

[0013] Using the above technical solution, in the sealed installation structure of the fresh air exchange core, the cross-sectional thickness of the first and second clips gradually increases along the direction close to the wall of the second positioning groove.

[0014] The sealing installation structure of the fresh air exchange core using the above technical solution also includes filter cotton and filter cotton compression spring.

[0015] The filter cotton is disposed on the upper end face of the exchange core. The filter cotton is used to filter the airflow entering the exchange core. One end of the filter cotton compression spring is connected to the sealing strip, and the other end of the filter cotton compression spring abuts against the surface of the filter cotton. The filter cotton compression spring is used to apply elastic force to the filter cotton so that the filter cotton is tightly attached to the surface of the exchange core.

[0016] In the above technical solution, the sealing installation structure of the fresh air exchange core has a connecting hole on the side wall of the sealing strip for the end of the filter cotton spring to be inserted.

[0017] In the sealed installation structure of the fresh air exchange core using the above technical solution, an anti-detachment baffle is provided on the wall of the side positioning seat. The anti-detachment baffle abuts against the side wall of the exchange core to restrict the exchange core from sliding out of the second positioning groove.

[0018] In the sealed installation structure of the fresh air exchange core using the above technical solution, the first positioning groove has a V-shaped structure.

[0019] Using the above technical solution, in the sealing installation structure of the fresh air exchange core, the sealing strip is made of PVC soft and hard co-extruded material.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This invention provides a first positioning groove in the lower positioning seat of the housing to initially position the bottom of the exchange core. Then, through the second positioning groove in the sealing strip and the staggered first and second locking strips, elastic clamping is formed on the side and top corners of the exchange core, achieving three-way tight positioning. This ensures stable sealing of the exchange core under thermal expansion and contraction and vibration, preventing air leakage from the exchange core, improving heat exchange efficiency, and preventing loosening under vibration and impact, thus improving the reliability of the fresh air unit's low-noise operation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the switching core installation structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the sealing strip installation structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the filter cotton compression spring installation structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the sealing strip structure of this utility model. Detailed Implementation

[0029] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] like Figures 1 to 5As shown, this utility model embodiment provides a sealed installation structure for a fresh air unit's exchange core 2, including a housing 1, an exchange core 2, and a sealing strip 3. The housing 1 has a receiving chamber 10, and the exchange core 2 is located within the receiving chamber 10. The inner wall of the housing 1 is provided with an upper positioning seat 11, a side positioning seat 12, and a lower positioning seat 13. The two side positioning seats 12 are respectively located on the left and right sides of the housing 1. The upper positioning seat 11 is located at the top of the housing 1, and the lower positioning seat 13 is located at the bottom of the housing 1. The lower positioning seat 13 is provided with a first positioning groove 130. The outer walls of the upper positioning seat 11 and the side positioning seats 12 are provided with slots 120. The sealing strip 3 is embedded in the housing. Within the slot 120, the bottom corner of the exchange core 2 abuts against the first positioning slot 130, and the side and top corners of the exchange core 2 respectively abut against the sealing strip 3. The sealing strip 3 is provided with a second positioning slot 30, which abuts against the corner of the exchange core 2. The upper wall of the second positioning slot 30 is provided with a downwardly extending first locking strip 31, and the lower wall of the second positioning slot 30 is provided with an upwardly extending second locking strip 32. The first locking strip 31 and the second locking strip 32 are offset from each other. The first locking strip 31 and the second locking strip 32 are used to elastically abut against the surface of the exchange core 2 when the corner of the exchange core 2 extends into the second positioning slot 30. During installation, the bottom of the exchange core 2 is first aligned with the first positioning groove 130 of the lower positioning seat 13, so that its bottom corner is firmly abutted. Then, the side and top corners are embedded into the second positioning groove 30 in the sealing strip 3. The second positioning groove 30 is connected by the first locking strip 31 and the second locking strip 32, which are staggered on the inner upper and lower walls. During the insertion of the exchange core 2, the first locking strip 31 and the second locking strip 32 can form an elastic abutment on the surface of the exchange core 2. This setting can not only provide a certain buffer force for the exchange core 2 to adapt to the slight deformation caused by thermal expansion and contraction, but also provide a clamping force for the exchange core 2 to prevent the exchange core 2 from loosening or shifting, thereby improving the sealing effect of the exchange core 2.

[0033] like Figure 5 As shown, the upper and lower walls of the sealing strip 3 are respectively provided with guide ribs 33. The guide ribs 33 are used to limit the contact with the inner wall of the slot 120. The guide ribs 33 can limit the contact, increase the adhesion, and prevent the sealing strip 3 from loosening due to external force or vibration after installation.

[0034] like Figure 5As shown, furthermore, the upper and lower ends of the opening of the second positioning groove 30 are respectively provided with limiting baffles 34. The limiting baffles 34 are used to adhere to the side wall of the upper positioning seat 11 or the side positioning seat 12 when the sealing strip 3 is embedded into the slot 120. This setting can, on the one hand, play a limiting role to prevent the sealing strip 3 from being pushed in too deeply; on the other hand, the limiting baffles 34 can also provide a force support point for the sealing strip 3, making the disassembly process smoother, avoiding difficulty in removal due to excessive tightness, and improving the assembly efficiency of the overall structure.

[0035] like Figure 5 As shown, the cross-sectional thickness of the first clip 31 and the second clip 32 gradually increases along the direction close to the wall of the second positioning groove 30. Its function is to form a gradually increasing elastic abutment force during the process of inserting the exchange core 2 into the second positioning groove 30, so as to generate a progressive squeezing effect when in contact with the surface of the exchange core 2, thereby improving the sealing stability of the sealing strip 3 on the exchange core 2.

[0036] like Figure 3 and Figure 4 As shown, further, it also includes filter cotton 4 and filter cotton compression spring 5. The filter cotton 4 is disposed on the upper end face of the heat exchange core 2. The filter cotton 4 is used to filter the airflow entering the heat exchange core 2. One end of the filter cotton compression spring 5 is connected to the sealing strip 3, and the other end of the filter cotton compression spring 5 abuts against the surface of the filter cotton 4. The filter cotton compression spring 5 is used to apply elastic force to the filter cotton 4 so that the filter cotton 4 is tightly attached to the surface of the heat exchange core 2. By placing the filter cotton 4 on the upper end face of the heat exchange core 2, the airflow before entering the heat exchange core 2 can be effectively filtered to intercept dust, particulate matter and other impurities in the air, preventing these pollutants from entering the heat exchange channel, thereby reducing dust accumulation and blockage on the surface of the heat exchange core 2 and extending its service life. The filter cotton compression spring 5 can press the filter cotton 4 tightly onto the heat exchange core 2 by applying elastic force, which not only improves structural stability, but also effectively improves the convenience of subsequent disassembly and assembly.

[0037] like Figure 5 As shown, the sealing strip 3 is further provided with a connecting hole 35 on its side wall for inserting the end of the filter cotton spring 5, so as to improve the ease of assembly of the filter cotton spring 5.

[0038] like Figure 1 and Figure 2 As shown, further, the side positioning seat 12 is provided with an anti-detachment baffle 121 on its wall surface. The anti-detachment baffle 121 abuts against the side wall of the exchange core 2 to restrict the exchange core 2 from sliding out of the second positioning groove 30, thereby improving the stability of the installation structure of the exchange core 2.

[0039] like Figure 2As shown, the first positioning groove 130 has a V-shaped structure, which allows the corner of the exchange core 2 to be precisely embedded in the center of the first positioning groove 130, forming a self-positioning effect.

[0040] Furthermore, the sealing strip 3 is made of PVC soft and hard co-extruded material. Specifically, the first clip 31 and the second clip 32 of the sealing strip 3 are made of soft PVC material, and the rest are made of hard PVC material. Since the hard PVC material has good rigidity, it can enhance the fitting stability between the sealing strip 3 and the slot 120 and prevent loosening. The soft PVC material has moderate elasticity and can be stably attached to the surface of the exchange core 2, thereby improving the contact sealing effect between the sealing strip 3 and the exchange core 2.

[0041] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealed installation structure for a fresh air unit's exchange core, characterized in that, Includes the enclosure, exchange core, and sealing strips; The enclosure has a receiving chamber, the exchange core is located in the receiving chamber, and the inner wall of the enclosure is provided with an upper positioning seat, a side positioning seat and a lower positioning seat. The two side positioning seats are respectively located on the left and right sides of the enclosure, the upper positioning seat is located at the top of the enclosure, and the lower positioning seat is located at the bottom of the enclosure. The lower positioning seat is provided with a first positioning groove, and the outer side walls of the upper positioning seat and the side positioning seat are provided with slots. The sealing strip is embedded in the slots. The bottom corner of the exchange core abuts against the first positioning groove, and the side and top corners of the exchange core abut against the sealing strip respectively. The sealing strip is provided with a second positioning groove, which is used to abut against the corner of the exchange core. The upper wall of the second positioning groove is provided with a downwardly extending first retaining strip, and the lower wall of the second positioning groove is provided with an upwardly extending second retaining strip. The first and second locking strips are offset from each other, and the first and second locking strips are used to elastically abut against the surface of the exchange core when the corner of the exchange core extends into the second positioning groove.

2. The sealed installation structure of the fresh air unit exchange core according to claim 1, characterized in that, The upper and lower walls of the sealing strip are respectively provided with guide ribs, which are used to limit the contact with the inner wall of the slot.

3. The sealed installation structure of the fresh air unit exchange core according to claim 1, characterized in that, The second positioning groove has limiting baffles at its upper and lower ends. The limiting baffles are used to fit against the side wall of the upper positioning seat or the side positioning seat when the sealing strip is embedded into the slot.

4. The sealed installation structure of the fresh air unit exchange core according to claim 1, characterized in that, The cross-sectional thickness of the first and second locking strips gradually increases along the direction close to the wall of the second positioning groove.

5. The sealed installation structure of the fresh air unit exchange core according to claim 1, characterized in that, It also includes filter cotton and filter cotton compression spring; The filter cotton is disposed on the upper end face of the exchange core. The filter cotton is used to filter the airflow entering the exchange core. One end of the filter cotton compression spring is connected to the sealing strip, and the other end of the filter cotton compression spring abuts against the surface of the filter cotton. The filter cotton compression spring is used to apply elastic force to the filter cotton so that the filter cotton is tightly attached to the surface of the exchange core.

6. The sealed installation structure of the fresh air unit exchange core according to claim 5, characterized in that, The sealing strip has a connecting hole on its side wall for inserting the end of the filter cotton spring.

7. The sealed installation structure of the fresh air unit exchange core according to claim 1, characterized in that, The side positioning seat has an anti-detachment baffle on its wall surface. The anti-detachment baffle abuts against the side wall of the exchange core to prevent the exchange core from sliding out of the second positioning groove.

8. The sealed installation structure of the fresh air unit exchange core according to claim 1, characterized in that, The first positioning groove has a V-shaped structure.

9. The sealed installation structure of the fresh air unit exchange core according to claim 1, characterized in that, The sealing strip is made of PVC co-extruded material.

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