Round heater

Abstract

The utility model discloses a circular heater. The circular heater comprises a heat conducting plate, an elastic fastener and a heating assembly, the heat conducting plates are arranged in an arc shape, the number of the heat conducting plates is at least two, the at least two heat conducting plates are connected into a circle, and every two adjacent heat conducting plates are connected through a detachable buckle; the elastic fasteners are fixedly arranged on the inner side wall of the heat conducting plate, and the at least two elastic fasteners are arranged at intervals in the radian direction of the heat conducting plate; the heating assembly comprises a long-strip-shaped heat conduction shell, the heat conduction shell is installed on the inner sides of the heat conduction plates and clamped between every two adjacent elastic buckles, a plurality of ceramic heating pieces are arranged in the heat conduction shell, the at least two heat conduction plates are detachably connected into a circle, and the heating assembly is fixedly installed on the heat conduction plates through the elastic buckles. By means of the detachable connection mode, the round heater is convenient to install and dismantle.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, specifically to a circular heater. Background Technology

[0002] In injection molding machines, raw materials are typically heated. Specifically, in the injection molding of tubing, the raw material is fed into the molding channel of the molding tube and then heated by a heating mechanism. This heating mechanism is usually located at the center of the molding tube, and its heat is transferred to the molding channel. Because the molding tube is circular, a circular heating mechanism is used. However, this typically involves a single, integrated circular heating mechanism, making installation and disassembly inconvenient. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model proposes a circular heater.

[0004] To achieve the above-mentioned technical effects, the present invention adopts the following solution:

[0005] A circular heater, comprising:

[0006] A heat-conducting plate, wherein the heat-conducting plate is arc-shaped, and at least two heat-conducting plates are provided, wherein at least two heat-conducting plates are connected to form a circular arrangement, and adjacent heat-conducting plates are connected by detachable buckles.

[0007] The elastic fastener is fixedly disposed on the inner side wall of the heat-conducting plate. At least two elastic fasteners are provided, and the at least two elastic fasteners are spaced apart along the arc direction of the heat-conducting plate.

[0008] The heating element includes a long strip-shaped heat-conducting shell, which is installed inside the heat-conducting plate and snapped between two adjacent elastic fasteners. Multiple ceramic heating elements are provided inside the heat-conducting shell.

[0009] In a preferred embodiment, the elastic fastener includes two spring tabs protruding from the inner wall of the heat-conducting plate. The spring tabs are arranged along the length of the heat-conducting plate, and the two spring tabs are respectively inclined relative to the corresponding side wall of the heat-conducting shell.

[0010] The preferred technical solution involves two spring pieces that are bent into an arc shape relative to each other.

[0011] In a preferred embodiment, the outer side wall of the heat-conducting plate is provided with a plurality of heat dissipation fins protruding from it.

[0012] In a preferred embodiment, the detachable buckle includes a plug-in portion and a plug-in piece, which are respectively disposed on both sides of the same heat-conducting sheet. The outer end of the plug-in portion extends inward to form a socket, and the two sides of the socket are elastic. The two sides of the outer end of the socket are provided with a first limiting protrusion. The plug-in piece is matched with the socket, and the two sides of the outer end of the plug-in piece are provided with a second limiting protrusion that matches the limiting protrusion.

[0013] In a preferred embodiment, the detachable buckle includes a first elastic hook and a second elastic hook, which are respectively disposed on both sides of the heat-conducting plate. The first elastic hook includes a first elastic arm fixedly connected to the side of the heat-conducting plate, and a first barb protrudes from the first elastic arm. The second elastic hook includes a second elastic arm fixedly connected to the side of the heat-conducting plate. The positions of the second elastic arm and the first elastic arm are staggered and correspond to each other. A second barb protrudes from the outer end of the second elastic arm, and the protrusion direction of the second barb is opposite to that of the first barb and matches the first barb.

[0014] In a preferred embodiment, a connecting hole is provided through the first elastic arm, and a threaded hole corresponding to the connecting hole is provided on the second barb, with the bolt passing through the connecting hole and connecting to the threaded hole.

[0015] In a preferred embodiment, the heat-conducting shell contains two electrode plates arranged along its length, and multiple ceramic heating elements are sandwiched between the two electrode plates. The two electrode plates are respectively connected to a positive electrode wire and a negative electrode wire. The heat-conducting shell also contains an insulating film that wraps around the two electrode plates and the multiple ceramic heating elements. Insulating silicone is provided at both ends of the heat-conducting shell for sealing.

[0016] Compared with existing technologies, the beneficial effects are:

[0017] This utility model has a simple structure and is easy to use. At least two heat-conducting plates can be detachably connected to form a circle, and the heating component is installed and fixed on the heat-conducting plates by elastic fasteners. The detachable connection method facilitates the installation and disassembly of the circular heater of this utility model. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one embodiment of the present invention.

[0019] Figure 2 yes Figure 1 Enlarged structural diagram of section A.

[0020] Figure 3 yes Figure 1 Enlarged structural diagram of section B.

[0021] Figure 4This is a schematic diagram of another embodiment of the present invention.

[0022] Figure 5 yes Figure 4 Enlarged structural diagram of section C.

[0023] Figure 6 This is a cross-sectional schematic diagram of the heating component in this utility model.

[0024] Reference numerals: 1. Heat-conducting plate; 2. Heating component; 3. Spring; 4. Detachable clip; 5. Heat dissipation fins; 6. First elastic arm; 7. Second elastic arm; 8. First barb; 9. Second barb; 10. Connecting hole; 12. Insertion part; 13. Socket; 14. First limiting protrusion; 15. Insertion piece; 16. Second limiting protrusion; 17. Heat-conducting shell; 18. Electrode piece; 19. Ceramic heating element; 20. Insulating film. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] A circular heater includes: a heat-conducting plate 1, an elastic fastener, and a heating element 2.

[0027] The heat-conducting plate 1 is arranged in an arc shape, and there are at least two heat-conducting plates 1. At least two heat-conducting plates 1 are connected to form a circle, and adjacent heat-conducting plates 1 are connected by a detachable buckle 4.

[0028] The elastic fastener is fixedly disposed on the inner side wall of the heat-conducting plate 1. There are at least two elastic fasteners, and the at least two elastic fasteners are spaced apart along the arc direction of the heat-conducting plate 1.

[0029] The heating component 2 includes a long strip-shaped heat-conducting shell 17, which is installed on the inner side of the heat-conducting plate 1 and snapped between two adjacent elastic fasteners. The heat-conducting shell 17 is elastically clamped by the elastic fasteners on both sides of the heat-conducting shell 17. The length direction of the heat-conducting shell 17 is set along the length direction of the heat-conducting plate 1. Multiple ceramic heating elements 19 are provided inside the heat-conducting shell 17. The material of the ceramic heating elements 19 is from the prior art.

[0030] The circular heater of this invention is installed in the center of the molding tube. The heat from the ceramic heating element 19 is transferred to the heat-conducting plate 1 through the heat-conducting shell 17, and then used to heat the molding tube of the injection molding machine. At least two heat-conducting plates 1 are detachably connected to form a circle, and the heating component 2 is installed and fixed on the heat-conducting plate 1 by elastic fasteners. The detachable connection facilitates the installation and disassembly of the circular heater of this invention.

[0031] In a preferred embodiment, the elastic fastener includes two spring tabs 3 protruding from the inner wall of the heat-conducting plate 1. The spring tabs 3 are arranged along the length of the heat-conducting plate 1, and the two spring tabs 3 are respectively inclined relative to the corresponding heat-conducting shell sidewall.

[0032] The corresponding spring pieces 3 on both sides of the heat-conducting shell 17 are inclined towards the heat-conducting shell 17 and abut against the heat-conducting shell 17, thereby clamping the heat-conducting shell 17 by the elastic force of the spring pieces 3.

[0033] In the preferred technical solution, two spring pieces 3 are bent into an arc shape and installed.

[0034] After the spring piece 3 is bent, the side that contacts the heat-conducting shell 17 is arc-shaped, which makes it easy to directly insert the heat-conducting shell 17 between the two spring pieces 3.

[0035] In a preferred embodiment, a plurality of heat dissipation fins 5 protrude from the outer side wall of the heat-conducting plate 1.

[0036] The heat dissipation fins 5 accelerate the heat dissipation on the heat-conducting plate 1, thereby improving the heating efficiency of the forming tube.

[0037] In a preferred embodiment, the detachable buckle 4 includes a plug-in portion 12 and a plug-in piece 15. The plug-in portion 12 and the plug-in piece 15 are respectively disposed on both sides of the same heat-conducting sheet. The outer end of the plug-in portion 12 extends inward to form a socket 13. The two sides of the socket 13 are elastic. The two sides of the outer end of the socket 13 are provided with a first limiting protrusion 14. The plug-in piece 15 is matched with the socket 13. The two sides of the outer end of the plug-in piece 15 are provided with a second limiting protrusion 16 that matches the limiting protrusion.

[0038] When two adjacent heat-conducting plates 1 are spliced ​​together, the plug-in part 12 on one heat-conducting plate 1 is connected to the plug-in piece 15 on the other heat-conducting plate 1. The plug-in piece 15 is inserted into the socket 13 of the plug-in part 12, so that the second limiting protrusion 16 on the surface of the plug-in piece 15 abuts against the inner end of the first limiting protrusion 14 of the socket 13, thereby limiting the connection and making the plug-in part 12 and the plug-in piece 15 firmly connected.

[0039] In a preferred embodiment, the detachable buckle 4 includes a first elastic hook and a second elastic hook, which are respectively disposed on both sides of the heat-conducting plate 1. The first elastic hook includes a first elastic arm 6 fixedly connected to the side of the heat-conducting plate 1, and a first barb 8 protrudes from the first elastic arm 6. The second elastic hook includes a second elastic arm 7 fixedly connected to the side of the heat-conducting plate 1. The positions of the second elastic arm 7 and the first elastic arm 6 are staggered and correspond to each other. A second barb 9 protrudes from the outer end of the second elastic arm 7, and the protrusion direction of the second barb 9 is opposite to that of the first barb 8 and matches the first barb 8.

[0040] When two adjacent heat-conducting plates 1 are spliced ​​together, the first elastic hook on one heat-conducting plate 1 is connected to the second elastic hook on the other heat-conducting plate 1. During splicing, the two first elastic arms 6 and the second elastic arms 7 are intersected, and the first barb 8 and the second barb 9 are hooked together, thereby connecting the first elastic hook to the second elastic hook.

[0041] In a preferred embodiment, a connecting hole 10 is provided through the first elastic arm 6, and a threaded hole corresponding to the connecting hole 10 is provided on the second barb 9, and a bolt passes through the connecting hole 10 and connects with the threaded hole.

[0042] The two heat-conducting plates 1 are further secured by bolting the first elastic hook and the second elastic hook together, thus preventing the first elastic hook from detaching from the second elastic hook.

[0043] In a preferred embodiment, the heat-conducting shell 17 is provided with two electrode plates 18 arranged along the length of the heat-conducting shell 17, and multiple ceramic heating plates 19 are sandwiched between the two electrode plates 18. The two electrode plates 18 are respectively connected to the positive electrode wire and the negative electrode wire. The heat-conducting shell 17 is also provided with an insulating film 20 to wrap the two electrode plates 18 and the multiple ceramic heating plates 19. Insulating silicone is provided at both ends of the heat-conducting shell 17 for sealing.

[0044] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A circular heater, characterized in that, include: Heat-conducting plate (1), the heat-conducting plate (1) is arranged in an arc shape, at least two heat-conducting plates (1) are provided, at least two heat-conducting plates (1) are connected to form a circle, and two adjacent heat-conducting plates (1) are connected by a detachable buckle (4); The elastic fastener is fixedly disposed on the inner side wall of the heat-conducting plate (1). At least two elastic fasteners are provided, and at least two elastic fasteners are spaced apart along the arc direction of the heat-conducting plate (1). Heating component (2), the heating component (2) includes a long strip heat-conducting shell (17), the heat-conducting shell (17) is installed on the inner side of the heat-conducting plate (1) and snapped between two adjacent elastic fasteners, and multiple ceramic heating elements (19) are provided inside the heat-conducting shell (17).

2. The circular heater as described in claim 1, characterized in that, The elastic fastener includes two spring pieces (3) protruding from the inner wall of the heat-conducting plate (1). The spring pieces (3) are arranged along the length of the heat-conducting plate (1), and the two spring pieces (3) are respectively inclined relative to the corresponding heat-conducting shell sidewall.

3. The circular heater as described in claim 2, characterized in that, Two spring clips (3) are bent into an arc shape and installed.

4. The circular heater as described in claim 1, characterized in that, The outer side wall of the heat-conducting plate (1) is provided with several heat dissipation fins (5).

5. The circular heater as described in claim 1, characterized in that, The detachable buckle (4) includes a plug-in part (12) and a plug-in piece (15). The plug-in part (12) and the plug-in piece (15) are respectively located on both sides of the same heat-conducting sheet. The outer end of the plug-in part (12) extends inward to form a socket (13). The two sides of the socket (13) are elastic. The two sides of the outer end of the socket (13) are provided with a first limiting protrusion (14). The plug-in piece (15) is matched with the socket (13). The two sides of the outer end of the plug-in piece (15) are provided with a second limiting protrusion (16) that matches the limiting protrusion.

6. The circular heater as described in claim 1, characterized in that, The detachable buckle (4) includes a first elastic hook and a second elastic hook. The first elastic hook and the second elastic hook are respectively disposed on both sides of the heat-conducting plate (1). The first elastic hook includes a first elastic arm (6) fixedly connected to the side of the heat-conducting plate (1). A first barb (8) protrudes from the first elastic arm (6). The second elastic hook includes a second elastic arm (7) fixedly connected to the side of the heat-conducting plate (1). The position of the second elastic arm (7) is staggered with the position of the first elastic arm (6). A second barb (9) protrudes from the outer end of the second elastic arm (7). The protruding direction of the second barb (9) is opposite to that of the first barb (8) and matches the first barb (8).

7. The circular heater as described in claim 6, characterized in that, The first elastic arm (6) has a through hole (10), and the second barb (9) has a threaded hole corresponding to the through hole (10). The bolt passes through the through hole (10) and connects with the threaded hole.

8. The circular heater as described in claim 1, characterized in that, The heat-conducting shell (17) is provided with two electrode plates (18) arranged along the length of the heat-conducting shell (17), and multiple ceramic heating plates (19) are sandwiched between the two electrode plates (18). The two electrode plates (18) are respectively connected to the positive electrode wire and the negative electrode wire. The heat-conducting shell (17) is also provided with an insulating film (20) to wrap the two electrode plates (18) and the multiple ceramic heating plates (19). The two ends of the heat-conducting shell (17) are provided with insulating silicone for sealing.

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