Air conditioner heater convenient to install and manufacture

Abstract

The utility model discloses an air conditioner heater convenient to install and manufacture, and aims to provide the air conditioner heater convenient to install and manufacture, which is convenient to process and manufacture, can simplify the installation steps of the air conditioner heater, and is beneficial to improving the installation stability. The electric connector comprises a left mounting rack and a right mounting rack, the left mounting rack and the right mounting rack comprise end covers and mounting support legs which are integrally formed, the end covers are provided with plugging grooves, one of the mounting racks is also provided with mounting grooves and terminal passing ports, and the terminal passing ports are arranged on the end covers and are communicated with the plugging grooves; a wiring terminal is arranged at one end of the heater body, the two ends of the heater body are inserted into the inserting grooves of the two mounting frames, and the wiring terminal penetrates through the terminal passing opening and extends out of the outer sides of the mounting frames; and the thermal protector is embedded in the mounting groove, and the thermal protector is connected with the wiring terminal in series.

Description

Technical Field

[0001] The utility model relates to the field of air conditioner heaters, and particularly relates to an air conditioner heater which is convenient for installation and production. Background Art

[0002] An air conditioner heater (such as a PTC heater) is an important heat generating component in an air conditioner or a heating device. At present, the heater body of the air conditioner heater is generally in a long strip shape, and plastic end caps are provided at both ends of the heater body. The heater is generally installed by using two metal brackets formed by stamping, and the installation brackets of the heater and the metal brackets are produced separately. When installing the heater, first connect the metal brackets to the plastic end caps at both ends of the heater body, and then fix the heater to the designated position through the metal brackets. At present, the installation structure of this kind of air conditioner heater has the following deficiencies. First, the plastic end caps and the metal brackets need to be produced by different processes, which is inconvenient for production and increases the production cost. Second, the connection steps of the metal brackets and the plastic end caps not only increase the installation steps, but also the connection structure between the metal brackets and the plastic end caps may be loose, increasing the risk of unstable installation of the air conditioner heater. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an air conditioner heater which is not only convenient for processing and production, but also can simplify the installation steps of the air conditioner heater and is beneficial to improving the installation stability.

[0004] The technical solution of the utility model is as follows:

[0005] An air conditioner heater which is convenient for installation and production, comprising:

[0006] Two installation frames on the left and right, which include an integrally formed end cap and installation feet, a plug-in slot is provided on the end cap, and an installation slot and a terminal through hole are also provided on one of the installation frames, and the terminal through hole is arranged on the end cap and communicated with the plug-in slot;

[0007] A heater body, one end of which is provided with a wiring terminal, and both ends of the heater body are inserted into the plug-in slots of the two installation frames, and the wiring terminal passes through the terminal through hole and extends to the outside of the installation frame;

[0008] A thermal protector is embedded in the installation slot, and the thermal protector is connected in series with the wiring terminal. In this solution, the end cap and the installation feet are integrally formed to form an installation frame for installing the air conditioner heater. In this way, not only is it convenient for the processing and production of the installation frame (no need to adopt different processes); moreover, after the air conditioner heater is produced, during installation, as long as the installation feet are installed at the designated position of the air conditioner, the installation can be completed, saving the connection steps between the metal brackets and the plastic end caps in the prior art, thus simplifying the installation steps, and there is no problem of loosening of the connection structure between the metal brackets and the plastic end caps, so it is also beneficial to improving the installation stability.

[0009] On the other hand, the thermal protector is embedded in the mounting groove on the mounting frame and connected in series with the heater body, so that the thermal protector is integrated into the air conditioner heater; in this way, not only can the heater body be protected by the thermal protector, but the thermal protector is also easy to install and fix, and there is no need to additionally arrange a thermal protector in the external circuit of the air conditioner to protect the heater.

[0010] Preferably, the mounting frame where the mounting groove is located is also provided with an isolation portion extending outward, the isolation portion is located at the junction of the end cover and the mounting foot, the isolation portion is located between the two mounting frames, and the mounting groove is arranged on the side of the isolation portion facing the mounting foot. The mounting groove is arranged on the side of the isolation portion facing the mounting foot, so that when the thermal protector is installed, it will not be blocked by other structures of the mounting frame, which is convenient for the operator to insert the thermal protector into the mounting groove. On the other hand, the isolation portion is located between the two mounting frames, that is, the thermal protector is located between the two mounting frames after installation. In this way, during the installation of the air conditioner heater, the risk of the thermal protector being hit can be reduced, which is beneficial to protecting the thermal protector.

[0011] Preferably, the mounting frame where the mounting slot is located is also provided with a wire opening, which is located on the same side of the isolating portion as the mounting leg, and the first wire connecting the thermal protector and the terminal block passes through the wire opening, and the first wire is separated from the heater body by the end cover and the isolating portion. In this way, on the one hand, the routing of the first wire can be facilitated, and the first wire can be integrated into the mounting frame structure, which is conducive to improving the compactness of the structure; on the other hand, the first wire can be separated from the heater body by the end cover and the isolating portion to avoid contact between the first wire and the heater body, thereby protecting the first wire.

[0012] Preferably, the side of the isolating part facing the end cap is flush with the side of the plug-in slot, two reinforcing plates are provided between the isolating part and the end cap, the heater body is in contact with the side of the isolating part facing the end cap, and the heater body is located between the two reinforcing plates. In this way, the heater body can also be supported by the side of the isolating part facing the end cap in coordination with the plug-in slot, which is conducive to improving the stability of the mounting frame supporting the heater body.

[0013] Preferably, a fuse is further included, and a receiving through hole is provided on the mounting leg of the mounting frame where the mounting slot is located, the receiving through hole is close to the end cover, the receiving through hole and the mounting leg are located on the same side of the isolation part, the fuse is installed in the receiving through hole, the fuse and the thermal protector are connected in series through a second wire, and the second wire and the heater body are separated by the end cover and the isolation part. In this way, on the one hand, the fuse and the thermal protector can play a secondary protection role for the heater, and on the other hand, the second wire can be separated from the heater body by the end cover and the isolation part to avoid the second wire from contacting the heater body, thereby protecting the second wire.

[0014] Preferably, a fuse is further included. A receiving through-hole is provided on the mounting leg of the mounting bracket where the mounting groove is located, and the receiving through-hole is close to the end cover. The fuse is installed in the receiving through-hole, and the fuse, the thermal protector and the terminal are connected in series in sequence. In this way, the heater can be secondarily protected by the fuse and the thermal protector.

[0015] Preferably, there are two terminals, and there are also two terminal openings corresponding to the terminals. The two terminals pass through the terminal openings one by one and extend to the outside of the mounting bracket. In this way, it is beneficial to separate the two terminals and avoid short-circuiting of the two terminals.

[0016] Preferably, a partition plate is provided on the outer side surface of the end cover where the terminal opening is located. The partition plate is located between the two terminal openings and separates the two terminals. In this way, it can be ensured that the two terminals are separated and short-circuiting of the two terminals is avoided.

[0017] Preferably, the mounting leg includes a main leg with a U-shaped cross-section and a mounting plate provided on one side of the bottom end of the main leg. A rib plate is provided between the mounting plate and the main leg, and a mounting hole is provided on the mounting plate. In this way, the structural strength and stability of the mounting leg can be ensured.

[0018] The beneficial effects of the present utility model are as follows:

[0019] First, it is not only convenient for the processing and manufacturing of the mounting bracket (without using different processes); moreover, after the air-conditioning heater is manufactured, during installation, as long as the mounting leg needs to be installed at the designated position of the air conditioner, the installation can be completed, eliminating the connection step between the metal bracket and the plastic end cover in the prior art, thus simplifying the installation steps, and there is no problem of loosening of the connection structure between the metal bracket and the plastic end cover, so it is also beneficial to improve the installation stability.

[0020] Second, integrating the thermal protector on the air-conditioning heater can not only protect the heater body through the thermal protector; moreover, the installation and fixation of the thermal protector are convenient, and there is no need to additionally arrange a thermal protector in the external circuit of the air conditioner to protect the heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of an air-conditioning heater that is convenient for installation and manufacturing of the present utility model.

[0022] Figure 2 is a schematic structural diagram of a certain perspective of one of the mounting brackets of the present utility model.

[0023] Figure 3 is a schematic structural diagram of another perspective of one of the mounting brackets of the present utility model.

[0024] Figure 4 is a schematic structural view of the third perspective of one of the mounting brackets of the present utility model ( Figures 2 - 4 is a schematic structural view of different perspectives of the same mounting bracket).

[0025] Figure 5 is a schematic structural view of another mounting bracket of the present utility model.

[0026] Figure 6 is a schematic view of a connection in which a fuse, a thermal protector, and a terminal of a heater body for air conditioner heating that are convenient for installation and manufacture are connected in series in sequence.

[0027] In the figure:

[0028] Heater body 1;

[0029] Mounting bracket 2, end cover 2.1, mounting support foot 2.2, main support foot 2.2.1, mounting plate 2.2.2, rib plate 2.2.3, insertion slot 2.3, mounting slot 2.4, isolation part 2.5, reinforcing plate 2.6, partition plate 2.7, terminal through hole 2.8, wire passing hole 2.9, accommodation through hole 2.10;

[0030] Thermal protector 3;

[0031] Fuse 4. Detailed implementation mode

[0032] In the first specific embodiment, as Figures 1 - 6 shown, an air conditioner heater that is convenient for installation and manufacture includes a heater body 1, a thermal protector 3, and two mounting brackets 2 on the left and right.

[0033] The mounting bracket 2 includes an end cover 2.1 and a mounting support foot 2.2, and the end cover 2.1 and the mounting support foot 2.2 are integrally formed. In this embodiment, the mounting bracket 2 is a plastic part, and the end cover 2.1 and the mounting support foot 2.2 are of an integrally injection-molded structure. The end cover 2.1 is provided with an insertion slot 2.3, and the slot openings of the insertion slots 2.3 of the two mounting brackets 2 are arranged opposite to each other. One of the mounting brackets 2 is further provided with a mounting slot 2.4 and a terminal through hole 2.8. The terminal through hole 2.8 is arranged on the end cover 2.1 and is communicated with the insertion slot 2.3. On the cover end where the terminal through hole 2.8 is located, the terminal through hole 2.8 and the slot opening of the insertion slot 2.3 are located on opposite sides of the cover end.

[0034] One end of the heater body 1 is provided with a terminal. In this embodiment, there are two terminals, and the two terminals are located at the same end of the heater body 1. The two ends of the heater body 1 are inserted into the insertion slots 2.3 of the two mounting brackets 2. The two terminals pass through the terminal through hole 2.8 and extend to the outside of the mounting bracket 2.

[0035] The thermal protector 3 is embedded in the mounting groove 2.4 and is connected in series with one of the connection terminals.

[0036] In this embodiment, the end cover 2.1 and the mounting foot 2.2 are integrally formed to form a mounting frame 2 for mounting an air-conditioning heater. This not only facilitates the processing and manufacturing of the mounting frame 2 (no need to adopt different manufacturing processes); but also after the air-conditioning heater is manufactured, when installing it, it is only necessary to install the mounting foot 2.2 to the specified position of the air-conditioning to complete the installation, eliminating the step of connecting the metal bracket and the plastic end cover 2.1 in the prior art, thereby simplifying the installation steps, and there is no problem of loose connection structure between the metal bracket and the plastic end cover 2.1, which is also conducive to improving installation stability.

[0037] On the other hand, the thermal protector 3 is embedded in the mounting groove 2.4 on the mounting frame 2 and connected in series with the heater body 1, so that the thermal protector 3 is integrated into the air-conditioning heater; in this way, not only can the heater body 1 be protected by the thermal protector 3, but the thermal protector 3 is also easy to install and fix, and there is no need to additionally arrange the thermal protector 3 in the external circuit of the air conditioner to protect the heater.

[0038] In one implementation of this embodiment, both ends of the heater body 1 are embedded in the insertion slots 2 . 3 of the two mounting frames 2 , so that the heater body 1 is fixedly connected to the left and right mounting frames 2 .

[0039] In another implementation of this embodiment, both ends of the heater body 1 are inserted into the insertion slots 2.3 of the two mounting frames 2, and the end covers 2.1 of the two mounting frames 2 are provided with fixing bolts, which connect the heater body 1 and the end covers 2.1 together.

[0040] Further, such as Figures 2 - 4 As shown, the mounting frame 2 where the mounting groove 2.4 is located is also provided with an isolating portion 2.5 extending outward. In this embodiment, the isolating portion 2.5 is an isolating plate. The isolating portion 2.5 is located at the junction of the end cover 2.1 and the mounting foot 2.2. The isolating portion 2.5 is located between the two mounting frames 2. The mounting groove 2.4 is arranged on the isolating portion 2.5 on the side facing the mounting foot 2.2. The mounting groove 2.4 is arranged on the isolating portion 2.5 on the side facing the mounting foot 2.2, so that when the thermal protector 3 is installed, it will not be blocked by other structures of the mounting frame 2, and it is convenient for the operator to insert the thermal protector 3 into the mounting groove 2.4. On the other hand, the isolating portion 2.5 is located between the two mounting frames 2, that is, the thermal protector 3 is located between the two mounting frames 2 after installation. In this way, during the installation of the air-conditioning heater, the risk of the thermal protector 3 being hit can be reduced, which is beneficial to protecting the thermal protector 3.

[0041] Further, such as Figure 3 ,Figure 4 As shown, a wire passing opening 2.9 is further provided on the mounting bracket 2 where the mounting groove 2.4 is located. The wire passing opening 2.9 and the mounting feet 2.2 are on the same side of the isolation part 2.5. The thermal protector 3 and the terminal are connected in series through a first wire. The first wire passes through the wire passing opening 2.9. The first wire is separated from the heater body 1 by the end cover 2.1 and the isolation part 2.5. In this way, on the one hand, it is convenient for the routing of the first wire, integrating the first wire into the structure of the mounting bracket 2, which is beneficial to improving the structural compactness; on the other hand, the first wire can be separated from the heater body 1 by the end cover 2.1 and the isolation part 2.5, avoiding the contact between the first wire and the heater body 1, thus playing a role in protecting the first wire.

[0042] Further, as Figures 1 - 3 shown, one side surface of the isolation part 2.5 facing the end cover 2.1 is flush with one side surface of the insertion slot 2.3. Two reinforcing plates 2.6 are further provided between the isolation part 2.5 and the end cover 2.1. The heater body 1 contacts the side surface of the isolation part 2.5 facing the end cover 2.1, and the heater body 1 is located between the two reinforcing plates 2.6. In this way, the heater body 1 can also be supported by the side surface of the isolation part 2.5 facing the end cover 2.1 in cooperation with the insertion slot 2.3, which is beneficial to improving the stability of the support of the mounting bracket 2 for the heater body 1.

[0043] Further, as Figure 3 、 Figure 4 shown, there are also two terminal passing openings 2.8 corresponding to the terminals. The two terminals pass through the terminal passing openings 2.8 one by one and extend to the outside of the mounting bracket 2. In this way, it is beneficial to separate the two terminals and avoid the short circuit of the two terminals.

[0044] A partition plate 2.7 is provided on the outer side surface of the end cover 2.1 where the terminal passing opening 2.8 is located. The partition plate 2.7 is located between the two terminal passing openings 2.8 to separate the two terminals. In this way, it can ensure that the two terminals are separated and avoid the short circuit of the two terminals.

[0045] Further, as Figures 2 - 4 shown, the mounting foot 2.2 includes a main foot 2.2.1 with a U-shaped cross-section and a mounting plate 2.2.2 provided on one side of the bottom end of the main foot 2.2.1. A rib plate 2.2.3 is provided between the mounting plate 2.2.2 and the main foot 2.2.1, and mounting holes are provided on the mounting plate 2.2.2. In this way, the structural strength and stability of the mounting foot 2.2 can be ensured.

[0046] Specific Embodiment 2, as Figures 1 - 6 shown, an air conditioner heater convenient for installation and manufacture includes a heater body 1, a thermal protector 3, a fuse 4 and two mounting brackets 2 on the left and right.

[0047] The mounting bracket 2 includes an end cap 2.1 and mounting feet 2.2, and the end cap 2.1 and the mounting feet 2.2 are integrally formed. In this embodiment, the mounting bracket 2 is a plastic part, and the end cap 2.1 and the mounting feet 2.2 are of an integrally injection-molded structure. The end cap 2.1 is provided with a plug-in slot 2.3, and the slot openings of the plug-in slots 2.3 of the two mounting brackets 2 are arranged opposite to each other. One of the mounting brackets 2 is further provided with a mounting groove 2.4 and a terminal through-hole 2.8. The terminal through-hole 2.8 is arranged on the end cap 2.1 and is communicated with the plug-in slot 2.3. On the cover end where the terminal through-hole 2.8 is located, the terminal through-hole 2.8 and the slot opening of the plug-in slot 2.3 are located on opposite sides of the cover end. A receiving through-hole 2.10 is provided on the mounting foot 2.2 of the mounting bracket 2 where the mounting groove 2.4 is located. The receiving through-hole 2.10 is close to the end cap 2.1.

[0048] One end of the heater body 1 is provided with connection terminals (not shown in the figure). There are two connection terminals, and the two connection terminals are located at the same end of the heater body 1. The two ends of the heater body 1 are inserted into the plug-in slots 2.3 of the two mounting brackets 2. The two connection terminals pass through the terminal through-hole 2.8 and extend to the outside of the mounting bracket 2.

[0049] The thermal protector 3 is embedded in the mounting groove 2.4. The fuse 4 is installed in the receiving through-hole 2.10. The fuse 4, the thermal protector 3 and one of the connection terminals are connected in series in sequence. In this way, the heater can be secondarily protected by the fuse 4 and the thermal protector 3, improving the use safety of the air-conditioning heater.

[0050] In this embodiment, the end cap 2.1 and the mounting feet 2.2 are integrally formed to form the mounting bracket 2 for mounting the air-conditioning heater. In this way, not only is it convenient for the processing and manufacturing of the mounting bracket 2 (without using different processes); moreover, after the air-conditioning heater is manufactured, during installation, as long as the mounting feet 2.2 need to be installed at the designated position of the air conditioner, the installation can be completed, eliminating the connection step between the metal bracket and the plastic end cap 2.1 in the prior art, thus simplifying the installation steps, and there is no problem of loosening of the connection structure between the metal bracket and the plastic end cap 2.1, so it is also beneficial to improve the installation stability.

[0051] On the other hand, the thermal protector 3 is embedded in the mounting groove 2.4 on the mounting bracket 2, the fuse 4 is installed in the receiving through-hole 2.10, and the fuse 4, the thermal protector 3 and one of the connection terminals are connected in series in sequence, thus integrating the thermal protector 3 on the air-conditioning heater; in this way, not only can the heater body 1 be secondarily protected by the thermal protector 3 and the fuse 4; moreover, the installation and fixation of the thermal protector 3 and the fuse 4 are convenient, and there is no need to additionally arrange a thermal protector 3 in the external circuit of the air conditioner to protect the heater.

[0052] In one implementation of this embodiment, both ends of the heater body 1 are embedded in the insertion slots 2.3 of the two mounting brackets 2, thereby fixedly connecting the heater body 1 to the left and right mounting brackets 2 together.

[0053] In another implementation of this embodiment, both ends of the heater body 1 are inserted into the insertion slots 2.3 of the two mounting brackets 2. Set screws are provided on the end caps 2.1 of both mounting brackets 2, and the set screws connect the heater body 1 to the end cap 2.1 together.

[0054] Furthermore, as Figures 2 - 4 shown, the mounting bracket 2 where the mounting slot 2.4 is located is also provided with an isolation part 2.5 extending outward. In this embodiment, the isolation part 2.5 is an isolation plate. The isolation part 2.5 is located at the intersection of the end cap 2.1 and the mounting leg 2.2. The isolation part 2.5 is located between the two mounting brackets 2. The mounting slot 2.4 is arranged on the side of the isolation part 2.5 facing the mounting leg 2.2. By arranging the mounting slot 2.4 on the side of the isolation part 2.5 facing the mounting leg 2.2, in this way, when installing the thermal protector 3, it can be not blocked by other structures of the mounting bracket 2, which is convenient for the operator to insert the thermal protector 3 into the mounting slot 2.4. On the other hand, the isolation part 2.5 is located between the two mounting brackets 2, that is, the thermal protector 3 is located between the two mounting brackets 2 after installation. In this way, during the installation process of the air-conditioning heater, the risk of the thermal protector 3 being collided can also be reduced, which is beneficial to protecting the thermal protector 3.

[0055] Furthermore, as Figure 3 、 Figure 4 shown, the mounting bracket 2 where the mounting slot 2.4 is located is also provided with a wire passing port 2.9. The wire passing port 2.9 and the mounting leg 2.2 are on the same side of the isolation part 2.5. The thermal protector 3 and the terminal are connected in series through a first wire. The first wire passes through the wire passing port 2.9. The first wire is separated from the heater body 1 by the end cap 2.1 and the isolation part 2.5. In this way, on the one hand, it can facilitate the routing of the first wire, integrate the first wire into the mounting bracket 2 structure, which is beneficial to improving the structural compactness; on the other hand, the first wire can be separated from the heater body 1 by the end cap 2.1 and the isolation part 2.5 to avoid the first wire contacting the heater body 1, thereby playing a role in protecting the first wire.

[0056] Furthermore, as Figure 3 、 Figure 4As shown, the accommodation through-hole 2.10 and the mounting feet 2.2 are located on the same side of the isolation part 2.5. The fuse 4 and the thermal protector 3 are connected in series through the second wire. The second wire and the heater body 1 are separated by the end cover 2.1 and the isolation part 2.5. In this way, on the one hand, the fuse 4 and the thermal protector 3 can play a secondary protection role for the heater. On the other hand, the second wire and the heater body 1 can be separated by the end cover 2.1 and the isolation part 2.5 to avoid the second wire contacting the heater body 1, thereby playing a role in protecting the second wire.

[0057] Further, as Figures 1 - 3 shown, one side surface of the isolation part 2.5 facing the end cover 2.1 is flush with one side surface of the insertion slot 2.3. There are also two reinforcing plates 2.6 between the isolation part 2.5 and the end cover 2.1. The heater body 1 contacts one side surface of the isolation part 2.5 facing the end cover 2.1, and the heater body 1 is located between the two reinforcing plates 2.6. In this way, the heater body 1 can also be supported by one side surface of the isolation part 2.5 facing the end cover 2.1 in cooperation with the insertion slot 2.3, which is beneficial to improving the stability of the support of the mounting bracket 2 for the heater body 1.

[0058] Further, as Figure 3 、 Figure 4 shown, there are also two terminal through-holes 2.8 corresponding to the terminal blocks. The two terminal blocks pass through the terminal through-holes 2.8 one by one and extend to the outside of the mounting bracket 2. In this way, it is beneficial to separate the two terminal blocks and avoid short-circuiting of the two terminal blocks.

[0059] A partition plate 2.7 is provided on the outer side surface of the end cover 2.1 where the terminal through-hole 2.8 is located. The partition plate 2.7 is located between the two terminal through-holes 2.8 and separates the two terminal blocks. In this way, it can ensure that the two terminal blocks are separated and avoid short-circuiting of the two terminal blocks.

[0060] Further, as Figures 2 - 4 shown, the mounting foot 2.2 includes a main foot 2.2.1 with a U-shaped cross-section and a mounting plate 2.2.2 provided on one side of the bottom end of the main foot 2.2.1. A rib plate 2.2.3 is provided between the mounting plate 2.2.2 and the main foot 2.2.1, and mounting holes are provided on the mounting plate 2.2.2. In this way, the structural strength and stability of the mounting foot 2.2 can be ensured.

[0061] The above are only the preferred embodiments of the present invention, and do not impose any limitations on the present invention. Any simple modifications, changes, and equivalent transformations made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An air conditioning heater that is easy to install and manufacture, characterized in that: include: The left and right mounting frames include an integrally formed end cover and mounting legs, the end cover is provided with a plug-in slot, one of the mounting frames is also provided with a mounting slot and a terminal port, the terminal port is arranged on the end cover and communicates with the plug-in slot; The heater body has a wiring terminal at one end, and the two ends of the heater body are inserted into the plug-in slots of the two mounting frames, and the wiring terminal passes through the terminal opening and extends to the outside of the mounting frame; The thermal protector is embedded in the installation groove and is connected in series with the wiring terminal.

2. The air-conditioning heater that is easy to install and manufacture according to claim 1 is characterized in that: The mounting frame where the mounting groove is located is also provided with an isolation portion extending outward, the isolation portion is located at the intersection of the end cover and the mounting foot, the isolation portion is located between the two mounting frames, and the mounting groove is arranged on the side of the isolation portion facing the mounting foot.

3. The air-conditioning heater that is easy to install and manufacture according to claim 2 is characterized in that: A wire opening is also provided on the mounting frame where the mounting slot is located. The wire opening and the mounting leg are located on the same side of the isolation part. The first wire connecting the thermal protector and the terminal passes through the wire opening, and the first wire is separated from the heater body by the end cover and the isolation part.

4. An air-conditioning heater that is easy to install and manufacture according to claim 2 or 3, characterized in that: The side of the isolation part facing the end cover is flush with the side of the plug-in slot, and two reinforcing plates are provided between the isolation part and the end cover. The heater body contacts the side of the isolation part facing the end cover, and the heater body is located between the two reinforcing plates.

5. An air-conditioning heater that is easy to install and manufacture according to claim 2 or 3, characterized in that: It also includes a fuse. A mounting leg of the mounting frame where the mounting groove is located is provided with a receiving through hole. The receiving through hole is close to the end cover. The receiving through hole and the mounting leg are located on the same side of the isolation part. The fuse is installed in the receiving through hole. The fuse and the thermal protector are connected in series through a second wire. The second wire and the heater body are separated by the end cover and the isolation part.

6. An air-conditioning heater that is easy to install and manufacture according to claim 1, 2 or 3, characterized in that: It also includes a fuse. The mounting support leg of the mounting frame where the mounting slot is located is provided with a receiving through hole, and the receiving through hole is close to the end cover. The fuse is installed in the receiving through hole. The fuse, thermal protector and wiring terminal are connected in series in sequence.

7. An air-conditioning heater that is easy to install and manufacture according to claim 1, 2 or 3, characterized in that: There are two wiring terminals, and there are also two terminal openings corresponding to the wiring terminals. The two wiring terminals pass through the terminal openings one by one and extend to the outside of the mounting frame.

8. The air-conditioning heater that is easy to install and manufacture according to claim 7 is characterized in that: A partition is provided on the outer side of the end cover where the terminal opening is located. The partition is located between the two terminal openings to separate the two wiring terminals.

9. An air-conditioning heater that is easy to install and manufacture according to claim 1, 2 or 3, characterized in that: The mounting foot comprises a main foot with a U-shaped cross section and a mounting plate arranged on one side of the bottom end of the main foot. The mounting plate and the main foot bracket are provided with ribs, and the mounting plate is provided with mounting holes.

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