Combined ptc heater

Abstract

This utility model discloses a combined PTC heater, belonging to the field of PTC heating technology. The heater includes a radiator, a first L-shaped connecting plate, and a first fixing component. When two radiators are attached together using the first fixing component, the plug-in plate is pulled up to insert the plug-in post into the plug-in hole, thus allowing different numbers of radiators to be spliced ​​according to actual needs. Using the second fixing component, pulling one side of the second L-shaped connecting plate outward causes the meshing gear to rotate and drive the other side of the second L-shaped connecting plate outward. The rotational force of the meshing gear causes the locking plate to be inserted into the upper and lower sides of the fixing plate to complete the splicing of the radiator ends, thus enabling a wider splicing range. When splicing the sides of two radiators, they can be directly attached, and the inclined surface causes the plug-in plate to move upward and compress the return spring. The contraction force of the return spring resets the plug-in plate, thus making it easier to fix.

Description

Technical Field

[0001] This utility model belongs to the field of PTC heating technology, specifically, it relates to a combined PTC heater. Background Technology

[0002] PTC heaters utilize corrugated heat sinks, which improve heat dissipation. They combine the advantages of adhesive and mechanical bonding, and fully consider the various thermal and electrical phenomena of PTC heating elements during operation. They have strong bonding, excellent thermal conductivity and heat dissipation performance, high efficiency, and are safe and reliable. This type of PTC heater has the advantages of low thermal resistance and high heat exchange efficiency, making it an automatic temperature-controlled and energy-saving electric heater.

[0003] Chinese utility model patent CN221886743U discloses a combined PTC heater, including a heater body and heating elements. The heater body contains several heating elements. One end of the heater body is fixed with several terminals, each with a wiring hole. Several rotating rods are fixed to the end of the heater body furthest from the terminals. A connecting plate is installed on the end of the heater body furthest from the heating elements, and the terminals of the heater body are then fixedly connected to the connecting plate of another heater body. Simultaneously, fixing slots and fixing plates are fixed on both sides of the heater body, allowing the fixing plates to be inserted and engaged within the fixing slots. This makes the assembly of the PTC heater more convenient and solves the problem of having to fix multiple PTC heaters individually when using larger PTC heaters, which makes installation and fixation cumbersome and complicated.

[0004] The aforementioned prior art also has the following drawbacks: the heat sink and heating element of the heater are integrated as one unit, and the heat sink and heating element cannot be freely assembled according to actual needs. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To address the problem mentioned in the background art that the heat sink and heating element of the heater are integrated and cannot be freely assembled according to actual needs, the present invention adopts the following technical solution.

[0007] A combined PTC heater includes a radiator, with first L-shaped connecting plates fixedly connected to the outer walls of the radiator at its four corners. An installation compartment is formed between two first L-shaped connecting plates on the same side, and the installation compartments of the two radiators fit together. A first fixing component is installed on the first L-shaped connecting plate, and the first fixing component splices and fixes the outer walls of the two radiators. The heating element is installed in the installation compartment between the two radiators.

[0008] Preferably, a second fixing component is installed at both ends of the radiator, which enables the ends of the two radiators to be spliced ​​together.

[0009] Preferably, the first fixing component includes a plug groove, a plug hole, a sliding groove, a plug plate, a plug post, a return spring, a sliding rod, and a sliding block. Each first L-shaped connecting plate has a plug groove at both its upper and lower ends. Plug holes are provided on the two plug grooves on the same side. Sliding grooves are provided on both the upper and lower sides of the inner wall of the first L-shaped connecting plate on the other side. A sliding block is slidably connected inside the sliding groove. A sliding rod that protrudes from the first L-shaped connecting plate is fixedly connected to the sliding block. A plug plate is fixedly connected to the protruding end of the sliding rod. The plug plate is inserted into the inside of the plug groove. Plug posts are fixedly connected to the opposite faces of the two plug plates away from the first L-shaped connecting plate. A return spring is sleeved on the outer wall of the sliding rod.

[0010] Preferably, the bottom of the plug post near the outer wall is provided with an inclined surface.

[0011] Preferably, the second fixing component includes a second L-shaped connecting plate, a locking plate, a meshing rack, a U-shaped protective plate, a meshing gear, and a fixing plate. One end of the radiator is fixedly connected to the fixing plate, and the other end of the radiator is detachably connected to the U-shaped protective plate. The meshing gear is rotatably connected to the center of the U-shaped protective plate by a torsion spring. The meshing rack is meshed on both sides of the meshing gear. The upper end of one meshing rack is fixedly connected to the vertical edge of the second L-shaped connecting plate, and the bottom of the other meshing rack is fixedly connected to the vertical edge of the second L-shaped connecting plate. The horizontal edges of the two second L-shaped connecting plates are fixedly connected to oppositely arranged locking plates.

[0012] Preferably, the upper and lower sides of the fixing plate are lower than the upper and lower sides of the radiator, the horizontal side of the second L-shaped connecting plate is inserted into the upper and lower sides of the fixing plate and is parallel to the upper and lower sides of the radiator, and the outer wall of the locking plate near the bottom is provided with a slope.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. When the two heat sinks are attached together by the first fixing component, the plug plate is pulled up to insert the plug post into the plug hole, so that different numbers of heat sinks can be spliced ​​according to actual needs.

[0015] 2. By using the second fixing component, pulling one side of the second L-shaped connecting plate outward will cause the meshing gear to rotate and drive the other side of the second L-shaped connecting plate outward. The rotational force of the meshing gear will cause the locking plate to be inserted into the upper and lower sides of the fixing plate, thus completing the end splicing of the radiator and enabling a wider range of splicing.

[0016] 3. When splicing the sides of the two radiators, they can be directly attached. The inclined surface allows the plug plate to move upward and compress the return spring. The contraction force of the return spring resets the plug plate, making it easier to fix.

[0017] 4. The beveled design allows for easy insertion and outward movement of the second L-shaped connecting plates on both sides during assembly, making the assembly more convenient. The horizontal edges of the second L-shaped connecting plates are inserted into the upper and lower sides of the fixing plate and are parallel to the upper and lower sides of the radiator, resulting in a more aesthetically pleasing overall appearance of the assembled assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a combined PTC heater structure according to the present invention;

[0019] Figure 2 This is a schematic diagram of the first fixing component in this utility model;

[0020] Figure 3 In this utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the second fixing component in this utility model.

[0022] The correspondence between the labels and component names in the attached figures is as follows:

[0023] 100. Radiator; 101. First L-shaped connecting plate; 102. Insertion slot; 103. Fixing plate; 104. Sliding groove;

[0024] 200. Connector plate; 201. Connector post; 202. Return spring; 203. Sliding rod; 204. Sliding block;

[0025] 300. Second L-shaped connecting plate; 301. Locking plate; 302. Meshing rack; 303. U-shaped protective plate; 304. Meshing gear. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0029] like Figure 1 The diagram shown is a schematic diagram of a combined PTC heater structure according to a preferred embodiment of the present invention. The combined PTC heater of this embodiment includes a radiator 100. The outer wall of the radiator 100 at its four corners is fixedly connected with a first L-shaped connecting plate 101. An installation chamber is formed between two first L-shaped connecting plates 101 on the same side. The installation chambers of the two radiators 100 are fitted together. The heating element is installed in the installation chamber between the two radiators 100. In this embodiment, the heating element heats the material and the radiator 100 dissipates heat, thereby diffusing the heat outward and forming a heating effect.

[0030] like Figure 2 as well as Figure 3 As shown, this is a schematic diagram of the first fixing component structure in this embodiment. Each first L-shaped connecting plate 101 has insertion slots 102 at both its upper and lower ends. Insertion holes are provided on the two insertion slots 102 on the same side. Sliding grooves 104 are provided on both the upper and lower sides of the inner wall of the first L-shaped connecting plate 101 on the other side. A sliding block 204 is slidably connected inside the sliding groove 104. A sliding rod 203, extending through the first L-shaped connecting plate 101, is fixedly connected to the sliding block 204. The protruding end of 203 is fixedly connected to a plug plate 200, which is inserted into the plug slot 102. The two plug plates 200 on opposite sides away from the first L-shaped connecting plate 101 are fixedly connected to plug posts 201. The outer wall of the sliding rod 203 is sleeved with a return spring 202. In this embodiment, when the two radiators 100 are attached together, the plug plate 200 is pulled up to insert the plug post 201 into the plug hole, so that different numbers of radiators 100 can be spliced ​​according to actual needs.

[0031] It is worth noting that the aforementioned plug-in slot 102, plug-in hole, sliding groove 104, plug-in plate 200, plug-in post 201, return spring 202, sliding rod 203, and sliding block 204 are the first fixing components in this embodiment. The first fixing components include, but are not limited to, plug-in slot 102, plug-in hole, sliding groove 104, plug-in plate 200, plug-in post 201, return spring 202, sliding rod 203, and sliding block 204. Any component that can fix the side walls of the two heat sinks 100 can be used in this embodiment.

[0032] like Figure 3 As shown, the bottom of the plug-in post 201 near the outer wall is provided with an inclined surface. In this embodiment, by setting the inclined surface, the sides of the two heat sinks 100 can be directly attached when splicing. The inclined surface causes the plug-in plate 200 to move upward and compress the reset spring 202. The contraction force of the reset spring 202 causes the plug-in plate 200 to reset, thus making it easier to fix.

[0033] like Figure 2 As shown in Figure 4, which is a schematic diagram of the second fixing component structure in this embodiment, a fixing plate 103 is fixedly connected to one end of the radiator 100, and a U-shaped protective plate 303 is detachably connected to the other end of the radiator 100. A torsion spring is rotatably connected to the center of the U-shaped protective plate 303 to a meshing gear 304. Meshing racks 302 are meshed on both sides of the meshing gear 304. The upper end of one meshing rack 302 is fixedly connected to the vertical side of the second L-shaped connecting plate 300, and the bottom of the other meshing rack 302 is fixedly connected to a... The vertical side of the second L-shaped connecting plate 300 and the horizontal sides of the two second L-shaped connecting plates 300 are fixedly connected with oppositely arranged locking plates 301. In this embodiment, by pulling one side of the second L-shaped connecting plate 300 outward, the meshing gear 304 can be rotated to drive the other side of the second L-shaped connecting plate 300 outward. The rotational force of the meshing gear 304 causes the locking plates 301 to be inserted into the upper and lower sides of the fixed plate 103, thereby completing the end splicing of the radiator 100, which allows for a wider range of splicing.

[0034] It is worth noting that the second L-shaped connecting plate 300, locking plate 301, meshing rack 302, U-shaped protective plate 303, meshing gear 304, and fixing plate 103 mentioned above are the second fixing components in this embodiment. The second fixing components include, but are not limited to, the second L-shaped connecting plate 300, locking plate 301, meshing rack 302, U-shaped protective plate 303, meshing gear 304, and fixing plate 103. Any component that allows the ends of the radiator 100 to be spliced ​​can be used in this embodiment.

[0035] like Figure 2 as well as Figure 4As shown, the upper and lower sides of the fixing plate 103 are lower than the upper and lower sides of the radiator 100. The horizontal edge of the second L-shaped connecting plate 300 is inserted into the upper and lower sides of the fixing plate 103 and is parallel to the upper and lower sides of the radiator 100. The outer wall of the locking plate 301 near the bottom is provided with a slope. In this embodiment, the slope can be used to make the second L-shaped connecting plates 300 on both sides move outward by simply inserting them during splicing, making splicing more convenient. The horizontal edge of the second L-shaped connecting plate 300 is inserted into the upper and lower sides of the fixing plate 103 and is parallel to the upper and lower sides of the radiator 100, making the overall appearance of the spliced ​​plate more beautiful.

[0036] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A combined PTC heater, comprising a radiator (100), characterized in that, The outer walls of the radiator (100) at the four corners are fixedly connected with first L-shaped connecting plates (101). An installation compartment is formed between the two first L-shaped connecting plates (101) on the same side. The installation compartments of the two radiators (100) fit together. A first fixing component is installed on the first L-shaped connecting plate (101). The first fixing component splices and fixes the outer walls of the two radiators (100). The heating element is installed in the installation compartment between the two radiators (100).

2. The combined PTC heater according to claim 1, characterized in that, The radiator (100) has a second fixing component installed at both ends, which enables the ends of the two radiators (100) to be spliced ​​together.

3. The combined PTC heater according to claim 2, characterized in that, The first fixing component includes a plug groove (102), a plug hole, a sliding groove (104), a plug plate (200), a plug post (201), a return spring (202), a sliding rod (203), and a sliding block (204). Each first L-shaped connecting plate (101) has a plug groove (102) at both its upper and lower ends. Plug holes are provided on the two plug grooves (102) on the same side. Sliding grooves (104) are provided on both the upper and lower sides of the inner wall of the first L-shaped connecting plate (101) on the other side. A sliding block (204) is slidably connected inside the groove (104). A sliding rod (203) that passes through the first L-shaped connecting plate (101) is fixedly connected to the sliding block (204). A plug plate (200) is fixedly connected to the end of the sliding rod (203). The plug plate (200) is inserted into the plug groove (102). Plug posts (201) are fixedly connected to the opposite faces of the plug plates (200) away from the first L-shaped connecting plate (101). A return spring (202) is sleeved on the outer wall of the sliding rod (203).

4. The combined PTC heater according to claim 3, characterized in that, The bottom of the plug post (201) near the outer wall has an inclined surface.

5. The combined PTC heater according to claim 4, characterized in that, The second fixing component includes a second L-shaped connecting plate (300), a locking plate (301), a meshing rack (302), a U-shaped protective plate (303), a meshing gear (304), and a fixing plate (103). The fixing plate (103) is fixedly connected to one end of the radiator (100), and the U-shaped protective plate (303) is detachably connected to the other end of the radiator (100). The meshing gear (304) is rotatably connected to the center of the U-shaped protective plate (303) by a torsion spring. The meshing rack (302) is meshed on both sides of the meshing gear (304). The upper end of one meshing rack (302) is fixedly connected to the vertical side of the second L-shaped connecting plate (300), and the bottom of the other meshing rack (302) is fixedly connected to the vertical side of the second L-shaped connecting plate (300). The horizontal sides of the two second L-shaped connecting plates (300) are fixedly connected to the locking plates (301) that are arranged opposite to each other.

6. The combined PTC heater according to claim 5, characterized in that, The upper and lower sides of the fixing plate (103) are lower than the upper and lower sides of the radiator (100). The horizontal side of the second L-shaped connecting plate (300) is inserted into the upper and lower sides of the fixing plate (103) and is parallel to the upper and lower sides of the radiator (100). The outer wall of the locking plate (301) near the bottom is provided with a slope.

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