Mounting shell of electrothermal film overheating protection system

Abstract

The utility model relates to the technical field of electric heating, aims to solve the problems that in the prior art, an electric heating film overheating protection system is inconvenient to install and fix on a carbon fiber electric heating film and low in construction efficiency, and provides an installation shell of an electric heating film overheating protection system. The base and the panel are used for being installed on the two sides of a carbon fiber electrothermal film respectively, the panel is detachably connected with the base, an installation groove is formed in the inner side of the base, and a temperature fuse of an electrothermal film overheating protection system is installed in the installation groove; the base is further provided with a wire outlet groove, and the wire outlet groove is used for a pin or a lead of the thermal fuse to pass through. The electric heating film overheating protection system is simple in structure and convenient to install, the electric heating film overheating protection system can be rapidly and conveniently installed on the carbon fiber electric heating film, construction efficiency can be improved, the situation that the electric heating film overheating protection system is neglected or even not installed on a construction site can be eradicated, and reliability and safety of the electric heating system can be improved.

Description

Technical Field

[0001] This utility model relates to the field of electric heating technology, and more specifically, to an installation housing for an electric heating film overheat protection system. Background Technology

[0002] Indoor electric heating, a widely used heating method, primarily uses high-voltage heating wires, graphene heating films, and carbon fiber heating films as its core heating elements. However, each product has a limited lifespan, and reaching this limit can potentially lead to safety hazards. To address these issues, researchers are exploring various methods for controlling the temperature of the heating film.

[0003] Traditional electric heating systems rely on thermostats to regulate and control the temperature of the heating element. However, this method can only detect the temperature of a single point, cannot achieve multi-point detection, and is prone to measurement errors. Furthermore, traditional thermostats cannot comprehensively reflect the overall temperature distribution of the heating element, increasing the risk of localized overheating.

[0004] Graphene electric heating films employ self-limiting temperature technology, achieving temperature control through the material's inherent properties or the addition of PTC (positive temperature coefficient) materials. While this design effectively prevents overheating, the introduction of PTC materials complicates the manufacturing process, significantly increases production costs, narrows the power adjustment range, and affects far-infrared radiation efficiency. Long-term use may also lead to material aging and performance degradation.

[0005] In contrast, carbon fiber electric heating films are favored for their longer service life (typically exceeding 10 years). However, their main failure mode is concentrated at the connection between the carbon fiber and the conductive copper strip, where significant high temperatures can easily develop after prolonged use, posing a potential fire hazard. Therefore, effectively limiting the operating temperature of carbon fiber electric heating films has become a key and hot research area.

[0006] Currently, the common method for detecting the temperature at the connection point between the carbon fiber and the conductive copper strip is to install an overheat protection system (such as a thermal fuse) for the heating film. When the temperature exceeds the temperature threshold, the thermal fuse melts, cutting off the power supply and preventing the carbon fiber heating film from continuing to heat up. However, installing and fixing the thermal fuse on the carbon fiber heating film is inconvenient, resulting in low construction efficiency and instances where the overheat protection system is omitted or not installed at all during construction. Utility Model Content

[0007] The present invention aims to provide an installation shell for an electric heating film overheat protection system, so as to solve the problems of inconvenient installation and fixation on carbon fiber electric heating film and low construction efficiency in the prior art.

[0008] This utility model is achieved using the following technical solution:

[0009] This utility model provides an installation housing for an electric heating film overheat protection system, including a base and a panel. The base and the panel are respectively installed on both sides of a carbon fiber electric heating film. The panel is detachably connected to the base. An installation groove is provided on the inner side of the base for installing a temperature fuse of the electric heating film overheat protection system. A wire outlet groove is also provided on the base for the pins or leads of the temperature fuse to pass through.

[0010] The overheat protection system for the heating film includes N temperature sensing points connected in series. Each temperature sensing point includes a thermal fuse. Adjacent temperature sensing points are connected by wires. The number of temperature sensing points is determined by the length of the carbon fiber heating film. For example, each temperature sensing point includes one self-resetting thermal fuse or two conventional thermal fuses connected in parallel. The temperature sensing points are connected in series using Teflon wires with a temperature resistance of 200°C.

[0011] The depth of the mounting groove is determined by the thickness of the thermal fuse. After the thermal fuse is installed, it is in close contact with the copper strip of the carbon fiber heating film.

[0012] The mounting housing of this utility model has a simple structure and is easy to install. Simply place the temperature fuse of the electric heating film overheat protection system into the mounting groove of the base, then install the base and the panel on both sides of the carbon fiber electric heating film and connect them. This simplifies the installation and fixing of the electric heating film overheat protection system on the carbon fiber electric heating film, improving construction efficiency. The electric heating film overheat protection system can be pre-installed on the carbon fiber electric heating film before installing the electric heating system, avoiding the phenomenon of omitting or even completely omitting the electric heating film overheat protection system during construction. The mounting housing of this utility model not only improves the overall performance and safety of the electric heating system but is also economical and reliable.

[0013] As a preferred technical solution:

[0014] There are many ways to detachably connect the panel and the base, such as threaded connection, pin connection, snap-fit ​​connection, etc., and are not limited to the following methods of inserting a connector into a plug hole or inserting a hook into a hanging slot.

[0015] As a preferred technical solution:

[0016] The base has an inner cavity, and the bottom surface of the cavity has the mounting groove.

[0017] As a preferred technical solution:

[0018] A retaining strip is provided around the mounting slot.

[0019] As a preferred technical solution:

[0020] The baffle is a U-shaped baffle, which is located on three sides of the mounting groove and inside the accommodating cavity.

[0021] As a preferred technical solution:

[0022] The cable outlet groove is located near the third side wall of the base, and the opening of the U-shaped baffle faces the third side wall.

[0023] This facilitates the exit of the pins or leads of the thermal fuse.

[0024] As a preferred technical solution:

[0025] The top surfaces of the first and second side walls of the base, which are positioned opposite each other, are provided with slots.

[0026] After the mounting housing is installed on the carbon fiber heating film, the carbon fiber heating film is located in the slot. The slot cooperates with the panel to restrict the position of the carbon fiber heating film on both sides.

[0027] As a preferred technical solution:

[0028] The panel and the base are connected by mortise and tenon joints.

[0029] As a preferred technical solution:

[0030] The inner side of the panel is provided with a connector, and the base is provided with a plug hole on the side opposite to the panel. The plug hole and the connector are positioned and matched in size, and the connector can pass through the pre-set hole on the carbon fiber heating film.

[0031] As a preferred technical solution:

[0032] The number of the connector and the number of the plug hole can be two, and the two plug holes are respectively opened at the corner where the first side wall, the second side wall and the third side wall are connected.

[0033] Since the power supply voltage of the carbon fiber electric heating film is a safe isolation voltage, taking advantage of the fact that holes can be arbitrarily opened on the heating element of the carbon fiber electric heating film, two small holes are pre-made on the inner side of the connection between the heating element of the carbon fiber electric heating film and the copper strip. The two plugs on the panel are passed through the two small holes respectively. Then, the base with the electric heating film overheat protection system is connected to the panel, thereby realizing the stable and reliable fixing of the electric heating film overheat protection system on the carbon fiber electric heating film.

[0034] As a preferred technical solution:

[0035] The inner side of the panel is provided with a hook, and the base is provided with a hanging groove on the side opposite to the panel. The hanging groove and the hook are positioned and matched in size.

[0036] As a preferred technical solution:

[0037] The number of hooks and hanging slots can be two, and both hanging slots are opened on the inner side of the fourth side wall of the base, with the fourth side wall being opposite to the third side wall.

[0038] As a preferred technical solution:

[0039] The connector and the hook are respectively arranged at both ends of the panel.

[0040] As a preferred technical solution:

[0041] The base and the panel are made of insulating and flame-retardant components.

[0042] As a preferred technical solution:

[0043] The base and the panel are made of plastic.

[0044] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0045] 1. The installation housing structure of this utility model is simple and easy to install. Simply place the temperature fuse of the electric heating film overheat protection system into the installation groove of the base, and then install the base and panel on both sides of the carbon fiber electric heating film and connect them. This makes it easy to install and fix the electric heating film overheat protection system on the carbon fiber electric heating film, improving construction efficiency. The electric heating film overheat protection system can be pre-installed on the carbon fiber electric heating film before installing the electric heating system, avoiding the phenomenon of missing or not installing the electric heating film overheat protection system on the construction site.

[0046] 2. The mounting shell of this utility model can not only improve the overall performance and safety of the electric heating system, but also be economical and reliable.

[0047] 3. The present invention has slots on the top surfaces of the first and second side walls that are opposite to each other on the base. After the mounting shell is installed on the carbon fiber heating film, the carbon fiber heating film is located in the slot. The slot cooperates with the panel to restrict the carbon fiber heating film in the slot, thus preventing the mounting shell from shifting.

[0048] 4. This utility model has a plug and a hook on the inner side of the panel, and a plug hole and a hanging groove on the side of the base opposite to the panel. The panel and the base are connected by mortise and tenon joints. The connection method is simple and easy to operate. Moreover, the plug can pass through the pre-set hole on the carbon fiber electric heating film. After passing through, it is connected to the plug hole, which can stably and reliably install the electric heating film overheat protection system on the carbon fiber electric heating film. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the installation housing of the electrothermal film overheat protection system described in this utility model.

[0050] Figure 2 This is a schematic diagram of the structure of the base described in this utility model.

[0051] Figure 3 This is a front view of the base described in this utility model.

[0052] Figure 4 This is a left view of the base described in this utility model.

[0053] Figure 5 This is a bottom view of the base described in this utility model.

[0054] Figure 6 This is a schematic diagram of the structure of the panel described in this utility model.

[0055] Figure 7 This is a front view of the panel described in this utility model.

[0056] Figure 8 This is a left view of the panel described in this utility model.

[0057] Figure 9 This is a bottom view of the panel described in this utility model.

[0058] Icons: 1-Base, 101-First sidewall, 102-Second sidewall, 103-Third sidewall, 104-Fourth sidewall, 2-Accommodation cavity, 3-Mounting groove, 4-U-shaped baffle, 5-Panel, 6-Card slot, 7-Cable outlet groove, 8-Plug, 9-Plug hole, 10-Hook, 11-Hanging groove. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0060] Example 1

[0061] like Figures 1-9 As shown, this embodiment proposes an installation housing for an electric heating film overheat protection system, including a base 1 and a panel 5. The base 1 and the panel 5 are made of insulating and flame-retardant components. In this embodiment, the base 1 and the panel 5 are made of plastic.

[0062] The panel 5 is fastened to the base 1. The base 1 has an inner cavity 2. The bottom surface of the cavity 2 is provided with a mounting groove 3. The mounting groove 3 is used to install a thermal fuse. The depth of the mounting groove 3 is determined according to the thickness of the thermal fuse.

[0063] In this embodiment, a U-shaped baffle 4 is provided around the mounting groove 3. The U-shaped baffle 4 is located at the three sides of the mounting groove 3 and is located inside the accommodating cavity 2. The U-shaped baffle 4 does not protrude from the base 1.

[0064] During installation, the base 1 and the panel 5 are respectively placed on both sides of the carbon fiber electric heating film. The top surfaces of the first sidewall 101 and the second sidewall 102 of the base 1, which are arranged opposite each other, are provided with slots 6. When the mounting shell is installed on the carbon fiber electric heating film, the slots 6 cooperate with the panel 5 to restrict both sides of the electric heating film within the slots 6.

[0065] Meanwhile, the first sidewall 101 and the second sidewall 102 of the base 1 are also provided with cable outlet grooves 7, which are arranged near the third sidewall 103 of the base 1, and the opening of the U-shaped baffle 4 faces the third sidewall 103. The pins or leads of the thermal fuse are led out from the cable outlet grooves 7 on both sides of the base 1.

[0066] The inner side of the panel 5 is provided with two cylindrical connectors 8, and the inner side of the base 1 is provided with two insertion holes 9 corresponding to the positions and sizes of the connectors 8. In this embodiment, the two insertion holes 9 are respectively opened at the corners where the first sidewall 101, the second sidewall 102, and the third sidewall 103 connect. After the base 1 and the panel 5 are assembled together, the connectors 8 are inserted into the corresponding insertion holes 9.

[0067] The inner side of the panel 5 is provided with two elongated hooks 10, and the inner side of the base 1 is provided with two hanging slots 11 that correspond in position and are adapted in size to the hooks 10. In this embodiment, both hanging slots 11 are opened on the inner side of the fourth side wall 104 of the base 1, and the fourth side wall 104 is arranged opposite to the third side wall 103. After the base 1 and the panel 5 are assembled together, the hooks 10 are engaged in the corresponding hanging slots 11.

[0068] Using the above structure, the base 1 and the panel 5 are assembled by mortise and tenon joints.

[0069] Since the power supply voltage of the carbon fiber electric heating film is a safe isolation voltage, taking advantage of the fact that holes can be arbitrarily opened on the heating element of the carbon fiber electric heating film, two small holes are pre-made on the inner side of the connection between the heating element of the carbon fiber electric heating film and the copper strip. The two plugs 8 on the panel 5 are passed through the two small holes respectively. Then, the base 1, which is equipped with the electric heating film overheat protection system, is connected to the panel 5, thereby realizing the stable and reliable fixing of the electric heating film overheat protection system on the carbon fiber electric heating film.

[0070] In this embodiment, the overheat protection system of the heating film consists of N temperature sensing points connected in series. Each temperature sensing point includes a self-resetting thermal fuse or two conventional thermal fuses connected in parallel. The N temperature sensing points are connected in series with Teflon wires that are resistant to 200°C. The number of temperature sensing points is determined by the length of the carbon fiber heating film. Two small round holes are pre-set on the heating element at the locations where temperature sensing points need to be preset. The size of the round holes is determined according to the size of the connector 8 of the panel 5.

[0071] The installation method of the thermal fuse is as follows: install the thermal fuse in the mounting groove 3 on the base 1. After installation, the height of the thermal fuse is consistent with the height of the first side wall 101 and the second side wall 102 of the base 1, ensuring that the thermal fuse is in close contact with the copper strip of the carbon fiber heating film. The pins or leads of the thermal fuse are led out from the wire outlet grooves 7 on both sides of the base 1.

[0072] The method for fixing the mounting housing with the thermal fuse to the carbon fiber heating film is as follows: pass the plug 8 of the panel 5 through the round hole on the back of the carbon fiber heating film, and then connect the base 1 with the thermal fuse installed to the panel 5 from the corresponding position of the copper strip end through tenon and tenon joints.

[0073] The overheat protection system redundantly mounted on the carbon fiber electric heating film can be pre-installed on the carbon fiber electric heating film before the electric heating system is installed. The overheat protection system is stably and reliably installed on the carbon fiber electric heating film through the mounting shell of this utility model. The mounting shell of this utility model has a simple structure and is easy to install, which helps to improve construction efficiency and can prevent the situation where the overheat protection system of the electric heating film is omitted or not installed at the construction site, thus improving the reliability and safety of the electric heating system.

[0074] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mounting housing for an electrothermal film overheat protection system, characterized in that: The device includes a base and a panel, which are respectively installed on both sides of the carbon fiber electric heating film. The panel is detachably connected to the base. The inner side of the base is provided with a mounting groove for installing a temperature fuse of the electric heating film overheat protection system. The base is also provided with a wire outlet groove for the pins or leads of the temperature fuse to pass through.

2. The mounting housing of the electrothermal film overheat protection system according to claim 1, characterized in that: The base has an inner cavity, and the bottom surface of the cavity has the mounting groove.

3. The mounting housing of the electrothermal film overheat protection system according to claim 2, characterized in that: A retaining strip is provided around the mounting slot.

4. The mounting housing of the electrothermal film overheat protection system according to claim 3, characterized in that: The baffle is a U-shaped baffle, which is located on three sides of the mounting groove and inside the accommodating cavity.

5. The mounting housing of the electrothermal film overheat protection system according to claim 1, characterized in that: The top surfaces of the first and second side walls of the base, which are positioned opposite each other, are provided with slots.

6. The mounting housing of the electrothermal film overheat protection system according to claim 1, characterized in that: The panel and the base are connected by mortise and tenon joints.

7. The mounting housing of the electrothermal film overheat protection system according to claim 1, characterized in that: The inner side of the panel is provided with a connector, and the base is provided with a plug hole on the side opposite to the panel. The plug hole and the connector are positioned and matched in size, and the connector can pass through the pre-set hole on the carbon fiber heating film.

8. The mounting housing of the electrothermal film overheat protection system according to claim 7, characterized in that: The inner side of the panel is provided with a hook, and the base is provided with a hanging groove on the side opposite to the panel. The hanging groove and the hook are positioned and matched in size.

9. The mounting housing of the electrothermal film overheat protection system according to claim 8, characterized in that: The connector and the hook are respectively arranged at both ends of the panel.

10. The mounting housing of the electrothermal film overheat protection system according to any one of claims 1-9, characterized in that: The base and the panel are made of insulating and flame-retardant components.

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