A protective door for PTC electric heating testing

Abstract

This utility model provides a protective door for PTC electric heating testing, including a protective cover support plate mounted on a cabinet. The top of the support plate is hinged to a protective cover cover plate. A support assembly and a locking assembly are provided between the cover plate and the support plate. This utility model offers the following advantages: the protective cover has a simple structure, provides ventilation and noise reduction, is compatible with different opening angles in various environments, is suitable for multiple testing environments, features a closed-loop testing protection logic and action, reduces testing risks, and improves personnel safety. Simultaneously, it reduces operator workload by using a gas spring rod for assistance, improving production efficiency. The testing process, along with microswitches and electromagnets, forms a closed-loop testing protection logic, ensuring that the cover plate will not open arbitrarily during testing, thus improving testing safety.

Description

Technical Field

[0001] This utility model is a protective door for PTC electric heating testing, belonging to the technical field of PTC testing equipment. Background Technology

[0002] Before installation and use, ceramic PTC electric heaters with aluminum heat sinks need to undergo power testing to verify whether they can reach their rated power at the specified wind speed. For example, a certain model of PTC electric heater requires a power output of 1kW at a wind speed of 4m / s. During testing, the equipment must be powered and provided with uniform airflow. A protective cover is required to ensure the safety of operators during testing.

[0003] Some existing equipment lacks safety guards, while others have them; furthermore, the safety guards have certain shortcomings:

[0004] 1. The operation is labor-intensive and there are no assistive devices, resulting in high labor intensity for personnel: During production line testing, a large number of tests and inspections are conducted every day, requiring personnel to frequently open and close doors;

[0005] 2. During testing, personnel could open the door at will, failing to provide any safety protection.

[0006] 3. The protective cover is not linked to the start and stop of the test, and no closed-loop control is formed. Personnel can still start the test when the protective cover is open. Utility Model Content

[0007] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a protective door for PTC electric heating test.

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0009] A protective door for PTC electric heating testing includes a protective cover support plate, which is installed on a cabinet. The top of the protective cover support plate is connected to a protective cover cover plate via hinges. A support assembly and a locking assembly are provided between the protective cover cover plate and the protective cover support plate.

[0010] Furthermore, the support assembly includes a set of gas spring mounting seats and a set of mounting seats. Two gas spring mounting seats in the same set are symmetrically installed on the inner sides of the protective cover support plate. A gas spring rod is movably connected to the gas spring mounting seat. The telescopic end of the gas spring rod is movably connected to the mounting seat.

[0011] Furthermore, the locking assembly includes a set of electromagnet chucks and a set of electromagnet metal blocks. Two electromagnet chucks in the same set are symmetrically installed on the inner sides of the protective cover support plate, and two electromagnet metal blocks in the same set are symmetrically installed on the inner sides of the protective cover cover plate.

[0012] Furthermore, the locking assembly includes a micro switch, which is connected and fixed to an elongated hole on the protective cover support plate.

[0013] Furthermore, the top of the micro switch and the top of the protective cover support plate are located on the same plane.

[0014] Furthermore, the protective cover plate is provided with C-shaped reinforcing ribs.

[0015] Furthermore, both the protective cover support plate and the protective cover cover plate are provided with heat dissipation holes.

[0016] Furthermore, two observation windows are symmetrically opened on the protective cover plate, and a handle is installed in the middle of the protective cover plate.

[0017] The beneficial effects of this utility model are:

[0018] This utility model features a simple protective cover structure, ventilation, and noise reduction. It is compatible with different opening angles in various environments, suitable for multiple testing environments, and provides a closed-loop testing protection logic and action mechanism. It reduces testing risks and improves personnel safety. Simultaneously, it reduces operator workload by using a gas spring rod for assistance, thus increasing production efficiency. The testing process, along with microswitches and electromagnets, forms a closed-loop testing protection logic, ensuring that the protective cover will not open arbitrarily during testing, thereby enhancing testing safety.

[0019] The protective cover can be easily opened from the support plate thanks to the design of the support components and the assistance provided by the gas spring rod. At the same time, the opening angle of the protective cover can be adjusted by adjusting the installation position of the gas spring rod and the mounting base, or it can be compatible with gas spring rods of different sizes.

[0020] Through the design of the locking component, when the protective cover is closed, the electromagnet metal block on the inside of the protective cover will be attracted together with the electromagnet suction cup on the protective cover support plate, and firmly locked together to form a whole protective cover. During the test, the electromagnet is continuously energized, and personnel cannot open the protective cover, thus playing a safety protection role.

[0021] The microswitch is designed to fit the protective cover, ensuring that it is triggered when the cover is closed. The signal is then provided via a limit switch. If the cover is not closed, the microswitch is off, there is no signal feedback, and the test is invalid. Only when the microswitch is activated and a signal is sent, indicating that the protective cover is in place, is the test effective. If the cover is suddenly opened, the microswitch is off, the test is interrupted, and personnel safety is protected.

[0022] The C-shaped reinforcing ribs enhance the strength and stability of the protective cover.

[0023] The design of the heat dissipation holes ensures effective ventilation and heat dissipation of the protective cover during PTC testing, preventing high temperatures from affecting the test.

[0024] The observation window design allows staff to easily observe the condition of the tested items and the testing process during testing. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0026] Figure 1 This is a three-dimensional structural diagram of a protective door for PTC electric heating testing according to the present invention;

[0027] Figure 2 This is a top view of the protective door for PTC electric heating testing according to this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of a PTC electric heating test protective door in the open state according to this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of a PTC electric heating test protective door in the closed state according to the present invention.

[0030] In the diagram, 1. Protective cover support plate; 2. Protective cover plate; 3. Gas spring mounting base; 4. Gas spring rod; 5. Mounting base; 6. Electromagnet chuck; 7. Electromagnet metal block; 8. Micro switch; 9. Handle; 10. Observation window; 11. C-shaped reinforcing rib; 12. Heat dissipation hole. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-4 This utility model provides a technical solution for a protective door for PTC electric heating testing, including a protective cover support plate 1, which is installed on a cabinet. The top of the protective cover support plate 1 is connected to a protective cover cover plate 2 via hinges. A support assembly and a locking assembly are provided between the protective cover cover plate 2 and the protective cover support plate 1. This utility model features a simple protective cover structure, good ventilation and noise reduction, compatibility with different opening angles in various environments, applicability to multiple testing environments, a closed-loop testing protection logic and action, reduced testing risks, and improved personnel safety. Simultaneously, it reduces the labor intensity of operators by using a gas spring rod as an assist, improving production efficiency. The testing process, along with microswitches and electromagnets, forms a closed-loop testing protection logic, ensuring that the protective cover cover plate will not open arbitrarily during testing, thus improving the safety of the testing process.

[0033] See Figure 2 , Figure 3 , Figure 4 The support assembly includes a set of gas spring mounting seats 3 and a set of mounting seats 5. The two gas spring mounting seats 3 in the same set are symmetrically installed on the inner sides of the protective cover support plate 1. A gas spring rod 4 is movably connected to the gas spring mounting seat 3. The telescopic end of the gas spring rod 4 is movably connected to the mounting seat 5. By setting up the support assembly, the protective cover cover 2 can be easily opened from the protective cover support plate 1 with the assistance provided by the gas spring rod 4. At the same time, the opening and closing angle of the protective cover cover 2 can be adjusted by adjusting the installation position of the gas spring rod 4 and the mounting seat 5, or to accommodate gas spring rods 4 of different sizes.

[0034] See Figure 2 , Figure 3 , Figure 4The locking assembly includes a set of electromagnet suction cups 6 and a set of electromagnet metal blocks 7. The two electromagnet suction cups 6 in the same set are symmetrically installed on the inner sides of the protective cover support plate 1, and the two electromagnet metal blocks 7 in the same set are symmetrically installed on the inner sides of the protective cover cover plate 2. By setting the locking assembly, when the protective cover cover plate 2 is closed, the electromagnet metal blocks 7 on the inner side of the protective cover cover plate 2 will be attracted together with the electromagnet suction cups 6 on the protective cover support plate 1, and firmly lock together to form a whole protective cover. During the test, the electromagnets are continuously energized, and personnel cannot open the protective cover, thus playing a safety protection role.

[0035] See Figure 1 The locking assembly includes a micro switch 8, which is connected and fixed to the elongated hole on the protective cover support plate 1. The top of the micro switch 8 is on the same plane as the top of the protective cover support plate 1. By setting the micro switch 8 and adjusting its installation position to match the protective cover cover 2, it is ensured that the micro switch 8 will be triggered when the protective cover cover 2 is closed, and a signal will be provided through the limit switch 8. If the protective cover is not closed, the micro switch 8 will be disconnected, and there will be no signal feedback, so the test start is invalid. Only when the micro switch 8 is activated will a signal be issued, indicating that the protective cover cover 2 is in place, at which point the start is valid. When the protective cover cover 2 is suddenly opened, the micro switch 8 will be disconnected, the test will be interrupted, and personnel safety will be protected.

[0036] See Figure 1 The protective cover plate 2 is provided with C-shaped reinforcing ribs 11; by providing C-shaped reinforcing ribs 11, the strength of the protective cover plate 2 is enhanced and the stability of the protective cover plate 2 is improved.

[0037] See Figure 1 Both the protective cover support plate 1 and the protective cover cover 2 are provided with heat dissipation holes 12; by setting heat dissipation holes 12, it is convenient to ensure the ventilation and heat dissipation effect of the protective cover during PTC testing, and avoid the impact of high temperature on the test.

[0038] See Figure 1 The protective cover plate 2 has two symmetrically arranged observation windows 10. By setting the observation windows 10, it is convenient for staff to observe the status of the tested product and the test situation during the test. A handle 9 is installed in the middle of the protective cover plate 2. The handle 9 makes it convenient for staff to pull the protective cover plate 2.

[0039] The circuits and electronic components, modules and controllers, or the heat dissipation holes and maintenance doors in the space of the adapted electrical equipment are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this application does not involve improvements to software and methods or heat dissipation and maintenance.

[0040] When opening the protective cover, the gas spring rod 4 provides assistance, allowing the protective cover cover 2 to be easily opened from the protective cover support plate 1. During testing, the protective cover cover 2 is closed onto the protective cover support plate 1 to form a complete protective cover. When closed, the electromagnet metal block 7 on the inner side of the protective cover cover 2 will attract the electromagnet suction cup 6 on the protective cover support plate 1, thus firmly locking the protective cover cover 2 and the protective cover support plate 1 into a single protective cover. During the test, the electromagnet is continuously energized, preventing outside personnel from opening the protective cover, thus providing safety protection for the test. Furthermore, during the closure of the protective cover cover 2 and the protective cover support plate 1, the protective cover cover 2 will trigger the micro switch 8, providing a signal. If the protective cover is not closed, the micro switch 8 will be open, resulting in no signal feedback and invalid test startup. Only when the micro switch 8 is activated and a signal is sent, indicating that the protective cover cover 2 is in place, will the startup be effective. If the protective cover cover 2 is suddenly opened, the micro switch 8 will be open, interrupting the test and protecting personnel safety.

[0041] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PTC electrically heated test blast door characterized by, It includes a protective cover support plate (1), which is installed on the cabinet. The top of the protective cover support plate (1) is connected to a protective cover cover plate (2) by a hinge. A support component and a locking component are provided between the protective cover cover plate (2) and the protective cover support plate (1).

2. A PTC electrically heated test blast door according to claim 1 wherein, The support assembly includes a set of gas spring mounting seats (3) and a set of mounting seats (5). The two gas spring mounting seats (3) in the same set are symmetrically installed on the inner sides of the protective cover support plate (1). A gas spring rod (4) is movably connected to the gas spring mounting seat (3). The telescopic end of the gas spring rod (4) is movably connected to the mounting seat (5). The two mounting seats (5) in the same set are symmetrically installed on the inner sides of the protective cover cover plate (2).

3. A PTC electrically heated test blast door according to claim 2, wherein, The locking assembly includes a set of electromagnet chucks (6) and a set of electromagnet metal blocks (7). The two electromagnet chucks (6) in the same set are symmetrically installed on the inner sides of the protective cover support plate (1), and the two electromagnet metal blocks (7) in the same set are symmetrically installed on the inner sides of the protective cover cover plate (2).

4. A PTC electrically heated test blast door according to claim 3, wherein, The locking assembly includes a micro switch (8), which is connected and fixed to the elongated hole on the protective cover support plate (1).

5. A PTC electrically heated test blast door according to claim 4, wherein, The top of the micro switch (8) and the top of the protective cover support plate (1) are located on the same plane.

6. A PTC electrically heated test blast door according to claim 5 wherein, The protective cover plate (2) is provided with C-shaped reinforcing ribs (11).

7. A PTC electrically heated test blast door according to claim 6 wherein, Both the protective cover support plate (1) and the protective cover cover plate (2) are provided with heat dissipation holes (12).

8. A PTC electric heating test protective door according to claim 7, characterized in that, Two observation windows (10) are symmetrically opened on the protective cover plate (2), and a handle (9) is installed in the middle of the protective cover plate (2).

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