Electric heating sealing strip and installation method thereof

Abstract

The invention provides an electric heating sealing strip and a mounting method thereof, and relates to the technical field of sealing strips, the electric heating sealing strip comprises a test box, a sealing door, an inner and outer box connecting heat insulation plate, two sealing strips and an electric heating wire, the test box comprises a box body shell and a box body inner plate, an air conditioner room is arranged on the inner wall of the box body inner plate, and an air outlet and an air return opening are formed in the box body. The electric heating sealing strip is integrated, electric heating does not need to be installed independently, the sealing strip is installed through a clamping groove, installation is convenient, the overall structure of the sealing strip can be immediately optimized, and the technological method that sealing is conducted firstly, and then installation is conducted is adopted; the sealing strip is installed in an exposed mode and convenient to maintain, and the sealing strip clamping groove is convenient to install and maintain and can be used immediately. The sealing strip can be normally used in a temperature range of-70 DEG C to 200 DEG C; the sealing strip is wrapped by 360-degree dead-corner-free electric heating, so that heat transfer is uniform and smooth, and the service life of the sealing strip is prolonged; the power consumption can be reduced by 75%; and the installation and maintenance convenience of the sealing strip is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sealing strips, and particularly to an electrically heated sealing strip and an installation method thereof. Background Art

[0002] An electrically heated sealing strip is a key component for ensuring the sealing performance of a box body in a low-temperature environment, and can effectively improve the sealing and heat preservation performance of a test chamber.

[0003] The invention disclosed in the publication number CN114776199A discloses a sealing strip resistant to high and low temperatures and a test chamber. The key points of its technical solution are as follows: It includes a sealing head and a connecting part. The sealing head and the connecting part are integrally formed of silicone material. The sealing head is in an arc shape. The sealing head is provided with a hollow chamber. The inner wall of the sealing head is provided with a groove, and a heating tape is arranged in the groove. The connecting part is adhered to the seam around the box door by glue, and the disassembly and assembly are simple. By passing the heating tape through the channel of the connecting part and installing it in the groove on the inner wall of the sealing head, the end of the heating tape is directly connected to the temperature control system, and the sealing strip can be directly heated through the heating tape, so that the sealing strip is always maintained within a certain temperature range to prevent the sealing strip from expanding and contracting due to heat. The two protruding sealing lips on the sealing strip can form an end face seal when the box door is closed, increasing the contact area and making the sealing effect better.

[0004] Regarding the above relevant content, it is found that the sealing strips in the prior art have the following defects:

[0005] 1. The electric heating in the prior art belongs to concealed installation, which is not convenient for installation, and the sealing strip is installed by caulking, which is easy to leave glue residues.

[0006] 2. The body of the sealing strip in the prior art is sunken and deformed at the corner, and the joint of the closed mouth of the sealing strip is uneven, which is easy to cause the sealing strip not to fit well with the mounting plate.

[0007] 3. When the sealing strip in the prior art is used at a temperature below 50°C, the sealing strip will produce condensation, frosting, and freezing, resulting in ineffective use.

[0008] 4. The electric heating wire is in single-sided contact with the inner wall of the box body, which is easy to cause uneven heat transfer of the electric heating wire and overheat damage.

[0009] 4. It will increase power consumption.

[0010] 5. The installation and maintenance of the sealing strip in the prior art are not convenient.

[0011] 6. The electric heating wire in the prior art is easy to cause internal combustion of the heat preservation layer. Summary of the Invention

[0012] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to provide an electrically heated sealing strip and an installation method thereof.

[0013] To achieve the above object, the present invention adopts the following technical solutions: an electric heating sealing strip, including a test chamber, a sealing door, an inner and outer box connecting heat insulation plate, two sealing strips and electric heating wires. The test chamber includes a box body outer shell and a box body inner plate. An air-conditioning chamber is provided on the inner wall of the box body inner plate. An air outlet and a return air outlet are provided inside the box body. The sealing door includes an outer box door layer and an inner box door layer. The inner and outer box connecting heat insulation plate and the two sealing strips are located on the side where the test chamber and the sealing door are close to each other. One side of the inner and outer box connecting heat insulation plate is fixedly connected to the test chamber. The inner and outer box connecting heat insulation plate has a hollow structure. Clamping plates are fixedly connected to both the outer wall and the inner wall of the inner and outer box connecting heat insulation plate. A clamping groove is formed on the sealing strip, and the clamping groove is clamped with the clamping plate. A heating hole is formed on the side of the sealing strip, and the electric heating wire is slidably inserted into the heating hole.

[0014] Preferably, a plurality of protrusions are provided on the inner wall of the clamping groove, and the protrusions are evenly distributed on one side of the inner wall of the clamping groove.

[0015] The effect achieved by the above components is that the clamping groove can be more firmly clamped with the clamping plate.

[0016] Preferably, the sealing strip is provided with a hollow structure, and the cross section of the hollow hole on the side of the sealing strip is irregular.

[0017] Preferably, the sealing strip is provided with an integrally formed structure.

[0018] The effect achieved by the above components is that by setting the sealing strip to an integrally formed structure, the service strength of the sealing strip can be effectively improved.

[0019] Preferably, a wire passing hole is formed on the side of the clamping plate.

[0020] The effect achieved by the above components is that by setting the above structure, the wiring operation of the electric heating wire can be conveniently carried out.

[0021] Preferably, a box body heat insulation layer is provided on the side where the box body outer shell and the box body inner plate are close to each other.

[0022] The effect achieved by the above components is that by setting the above structure, the heat insulation effect of the test chamber can be improved.

[0023] Preferably, a box door heat insulation layer is provided on the side where the outer box door layer and the inner box door layer are close to each other.

[0024] The effect achieved by the above components is that by setting the above structure, the heat insulation effect of the sealing door can be improved.

[0025] The installation method of the electric heating sealing strip includes the following steps:

[0026] Step S1: Pass the electric heating wire through the heating holes on the side of the sealing strip.

[0027] Step S2: Move the sealing strip so that the card slot on the sealing strip is snapped onto the card board on the outer wall of the inner and outer box connecting heat insulation board, completing the installation of the outer ring sealing strip.

[0028] Step S3: Move the sealing strip and snap the card slot on the sealing strip onto the card board inside the inner and outer box connecting heat insulation board, completing the installation of the inner ring sealing strip.

[0029] Compared with the prior art, the advantages and positive effects of the present invention are as follows.

[0030] 1. In the present invention, compared with the traditional sealing strip, the electric heating sealing strip has the following advantages or effects: First, the electric heating sealing strip is integrated, and electric heating does not require separate installation. The installation of the sealing strip card slot is convenient and it can be used immediately. Second, the overall structure of the sealing strip is optimized, and the process method of closing first and then installing is adopted. Third, the sealing strip is surface-mounted, and the maintenance is convenient. The installation and maintenance of the sealing strip card slot are convenient and it can be used immediately. Fourth, the sealing strip can be used normally in the temperature range of -70°C to 200°C. Fifth, the sealing strip wraps the electric heating 360 degrees without dead angles, making its heat transfer uniform and smooth, and improving the service life of the sealing strip. Sixth, compared with the traditional one, the comprehensive cost of the sealing strip can be reduced by about 50%.

[0031] 2. In the present invention, the card slot can be more firmly connected to the card board; by setting the sealing strip as an integrally formed structure, the service strength of the sealing strip can be effectively improved; setting a wire passing hole can facilitate the wire arrangement operation of the electric heating wire; by setting a box body heat insulation layer, the heat insulation effect of the test box can be improved; by setting a box door heat insulation layer, the heat insulation effect of the sealing door can be improved. Brief Description of the Drawings

[0032] Figure 1 It is a three-dimensional structure schematic diagram of the electric heating sealing strip proposed by the present invention;

[0033] Figure 2 It is a structure schematic diagram inside the test box of the electric heating sealing strip proposed by the present invention;

[0034] Figure 3 It is a three-dimensional schematic diagram of the sealing strip of the electric heating sealing strip proposed by the present invention;

[0035] Figure 4 It is a side view of the sealing strip of the electric heating sealing strip proposed by the present invention;

[0036] Figure 5 It is a structure schematic diagram of the inner and outer box connecting heat insulation board of the electric heating sealing strip proposed by the present invention;

[0037] Figure 6 This is a partial structural schematic diagram of the electric heating sealing strip proposed by the present invention. Figure 5 shown in the figure.

[0038] Legend: 1. Test chamber; 101. Outer shell of the chamber; 102. Inner plate of the chamber; 103. Thermal insulation layer of the chamber; 104. Air-conditioning compartment; 105. Air outlet; 106. Air return opening; 2. Sealing door; 201. Outer layer of the chamber door; 202. Inner layer of the chamber door; 203. Thermal insulation layer of the chamber door; 3. Heat insulation plate for connecting the inner and outer chambers; 301. Clamping plate; 302. Wire passing hole; 4. Sealing strip; 401. Heating hole; 402. Card slot; 403. Protrusion; 5. Electric heating wire. Specific embodiments

[0039] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0040] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0041] Embodiment 1, as Figure 1 and Figure 2 shown, the present invention provides an electric heating sealing strip and its installation method, including an electric heating sealing strip, including a test chamber 1, a sealing door 2, a heat insulation plate 3 for connecting the inner and outer chambers, two sealing strips 4 and an electric heating wire 5. The test chamber 1 includes an outer shell 101 of the chamber and an inner plate 102 of the chamber. An air-conditioning compartment 104 is provided on the inner wall of the inner plate 102 of the chamber. An air outlet 105 and an air return opening 106 are provided inside the chamber. The sealing door 2 includes an outer layer 201 of the chamber door and an inner layer 202 of the chamber door.

[0042] The following specifically describes its specific settings and functions.

[0043] As Figures 3 to 6As shown in the figure, the inner and outer box connecting heat insulation plate 3 and the two sealing strips 4 are located on the side where the test box 1 and the sealing door 2 are close to each other. One side of the inner and outer box connecting heat insulation plate 3 is fixedly connected to the test box 1. The inner and outer box connecting heat insulation plate 3 has a hollow structure. The outer wall and the inner wall of the inner and outer box connecting heat insulation plate 3 are both fixedly connected with clamping plates 301. A clamping groove 402 is formed on the sealing strip 4, and the clamping groove 402 is clamped with the clamping plate 301. A heating hole 401 is formed on the side surface of the sealing strip 4, and the electric heating wire 5 is slidably arranged inside the heating hole 401. Compared with the traditional sealing strip 4, the electric heating sealing strip 4 has the following advantages or effects: First, the electric heating sealing strip 4 is integrated, and electric heating does not require separate installation. The clamping groove 402 of the sealing strip 4 is installed, which is convenient for installation and can be used immediately; Second, the overall structure of the sealing strip 4 is optimized, and the process method of closing first and then installing is adopted; Third, the sealing strip 4 is surface-mounted, which is convenient for maintenance. The clamping groove 402 of the sealing strip 4 is installed, which is convenient for maintenance and can be used immediately; Fourth, the sealing strip 4 can be normally used in the temperature range of -70°C to 200°C; Fifth, the sealing strip 4 wraps the electric heating without dead angles at 360 degrees, making its heat transfer uniform and smooth, and improving the service life of the sealing strip 4; Sixth, compared with the traditional one, the sealing strip 4 can reduce the comprehensive cost by about 50%.

[0044] A plurality of protrusions 403 are arranged on the inner wall of the clamping groove 402, and the protrusions 403 are evenly distributed on one side of the inner wall of the clamping groove 402. This can make the clamping of the clamping groove 402 and the clamping plate 301 more stable.

[0045] The sealing strip 4 is set to have a hollow structure, and the cross-section of the hollow hole on the side surface of the sealing strip 4 is irregular.

[0046] The sealing strip 4 is set to be an integrally formed structure. By setting the sealing strip 4 to be an integrally formed structure, the service strength of the sealing strip 4 can be effectively improved.

[0047] A wire passing hole 302 is formed on the side surface of the clamping plate 301. By setting the above structure, the wiring operation of the electric heating wire 5 can be conveniently carried out.

[0048] A box body heat preservation layer 103 is arranged on the side where the box body outer shell 101 and the box body inner plate 102 are close to each other. By setting the above structure, the heat preservation effect of the test box 1 can be improved.

[0049] A box door heat preservation layer 203 is arranged on the side where the box door outer layer 201 and the box door inner layer 202 are close to each other. By setting the above structure, the heat preservation effect of the sealing door 2 can be improved.

[0050] The overall effect is that compared with the traditional sealing strip 4, the electric heating sealing strip 4 has the following advantages and effects: First, the electric heating sealing strip 4 is integrated, and electric heating does not require separate installation. It is installed in the card slot 402 of the sealing strip 4, which is convenient for installation and can be used immediately. Second, the overall structure of the sealing strip 4 is optimized, and the process method of closing first and then installing is adopted. Third, the sealing strip 4 is surface-mounted, which is convenient for maintenance. It is installed in the card slot 402 of the sealing strip 4, which is convenient for maintenance and can be used immediately. Fourth, the sealing strip 4 can be used normally within the temperature range of -70°C to 200°C. Fifth, the sealing strip 4 wraps the electric heating without dead angles at 360 degrees, making its heat transfer uniform and smooth, and improving the service life of the sealing strip 4. Sixth, compared with the traditional one, the comprehensive cost of the sealing strip 4 can be reduced by about 50%. Seventh, the power consumption can be reduced by 75%. Eighth, the convenience of installation and maintenance of the sealing strip 4 is improved.

[0051] It can make the card slot 402 be more firmly clamped with the clamping plate 301; by setting the sealing strip 4 as an integrally formed structure, the service strength of the sealing strip 4 can be effectively improved; setting the wire passing hole 302 can facilitate the wiring operation of the electric heating wire 5; by setting the box body heat preservation layer 103, the heat preservation effect of the test box 1 can be improved; by setting the box door heat preservation layer 203, the heat preservation effect of the sealing door 2 can be improved.

[0052] The installation method of the electric heating sealing strip includes the following steps:

[0053] Step S1, passing the electric heating wire 5 through the heating hole 401 on the side of the sealing strip 4;

[0054] Step S2, moving the sealing strip 4 to make the card slot 402 on the sealing strip 4 snap onto the clamping plate 301 on the outer wall of the inner and outer box connecting heat insulation plate 3, and completing the installation of the outer ring sealing strip 4;

[0055] Step S3, moving the sealing strip 4 to snap the card slot 402 on the sealing strip 4 onto the clamping plate 301 inside the inner and outer box connecting heat insulation plate 3, and completing the installation of the inner ring sealing strip 4.

[0056] The above is only a preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. Electric heating sealing strip, comprising a test chamber (1), a sealing door (2), an inner and outer box connecting heat insulation board (3), two sealing strips (4) and an electric heating wire (5), characterized in that: The test chamber (1) includes a chamber outer shell (101) and an inner chamber plate (102). An air-conditioning compartment (104) is provided on the inner wall of the inner chamber plate (102). An air outlet (105) and an air return opening (106) are provided inside the chamber. The sealing door (2) includes an outer door layer (201) and an inner door layer (202). The inner and outer chamber connecting heat insulation plate (3) and the two sealing strips (4) are located on the sides where the test chamber (1) and the sealing door (2) are close to each other. One side of the inner and outer chamber connecting heat insulation plate (3) is fixedly connected to the test chamber (1). The inner and outer chamber connecting heat insulation plate (3) has a hollow structure. Clamping plates (301) are fixedly connected to both the outer wall and the inner wall of the inner and outer chamber connecting heat insulation plate (3). A clamping groove (402) is formed in the sealing strip (4). The clamping groove (402) is clamped with the clamping plate (301). A heating hole (401) is formed in the side surface of the sealing strip (4). The electric heating wire (5) slidably penetrates inside the heating hole (401).

2. The electric heating sealing strip according to claim 1, wherein: A number of protrusions (403) are provided on the inner wall of the clamping groove (402). The protrusions (403) are evenly distributed on one side of the inner wall of the clamping groove (402).

3. The electric heating sealing strip according to claim 2, wherein: The sealing strip (4) is provided with a hollow structure. The cross-section of the hollow hole on the side surface of the sealing strip (4) is irregular in shape.

4. The electric heating sealing strip according to claim 3, characterized in that: The sealing strip (4) is provided as an integrally formed structure.

5. The electric heating sealing strip according to claim 4, wherein: A wire passing hole (302) is formed in the side surface of the clamping plate (301).

6. The electric heating sealing strip according to claim 5, characterized in that: A chamber heat insulation layer (103) is provided on the sides where the chamber outer shell (101) and the inner chamber plate (102) are close to each other.

7. The electric heating sealing strip according to claim 6, wherein: A door heat insulation layer (203) is provided on the sides where the outer door layer (201) and the inner door layer (202) are close to each other.

8. The installation method of the electric heating sealing strip, which is applied to the electric heating sealing strip described in claim 7, is characterized in that, It includes the following steps: Step S1: Pass the electric heating wire (5) through the heating hole (401) on the side surface of the sealing strip (4). Step S2: Move the sealing strip (4) to make the clamping groove (402) on the sealing strip (4) snap onto the clamping plate (301) on the outer wall of the inner and outer chamber connecting heat insulation plate (3), completing the installation of the outer ring sealing strip (4). Step S3: Move the sealing strip (4) to snap the clamping groove (402) on the sealing strip (4) onto the clamping plate (301) inside the inner and outer chamber connecting heat insulation plate (3), completing the installation of the inner ring sealing strip (4).

Images