Heating device
By wrapping the conductive connection parts at both ends of the heating wire with a spiral hot wire, the problems of poor contact between the heating wire and the conductive post and local overheating and melting are solved, thereby improving the stability and service life of the heating device.
Patent Information
- Application Number
- CN202423049352.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-11
AI Technical Summary
In existing heating devices, the small contact area between the heating wire and the conductive post leads to poor contact and local overheating and melting.
The conductive connection parts at both ends of the heating wire are wrapped with a spiral hot wire, gradually reducing the wrapping area and forming a stable connection with the conductive post, thereby increasing the contact area and reducing the accumulation of resistance heat.
This effectively avoids poor contact between the heating wire and the conductive post, as well as localized overheating, extending the service life of the heating wire and improving the stability of the connection and the uniformity of heat distribution.
Smart Images
Figure CN223674740U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to heating equipment technical field, concretely is a kind of heating device. BACKGROUND
[0002] In vacuum plating process, especially in CVD (chemical vapor deposition) plating process, heating device needs to be used for heating, to provide necessary heat for CVD plating. The heating device currently used, heating wire two ends are connected with electrically conductive column, so that electric energy is transmitted from power supply to heating wire through electrically conductive column, so that heating wire generates heat, and then provides heat for plating. However, since the diameter of the two connecting ends of the heating wire is smaller than the diameter of the main body of the heating wire, the contact area of the heating wire and the electrically conductive column is small, on the one hand, the heating wire and the electrically conductive column are prone to poor contact, on the other hand, a large amount of resistance heat is generated at the contact position of the two ends of the heating wire and the electrically conductive column, which leads to rapid local temperature rise of the heating wire and melting, greatly affecting the service life of the heating wire. SUMMARY
[0003] The utility model aims at providing a kind of heating device, solve the problem that the heating wire and the electrically conductive column are prone to poor contact due to the small contact area of the heating wire and the electrically conductive column in prior art and the heating wire is prone to local overheating and melting due to the small cross-sectional area of the two ends of the heating wire.
[0004] To solve the above problems, the utility model provides the technical scheme as follows:
[0005] A kind of heating device, including support, two electrically conductive columns arranged on the support, and heating wire with two ends respectively corresponding to two electrically conductive columns one-to-one electrically connected, the heating wire includes hot wire main body and spiral heating wire, the two ends of the hot wire main body are respectively provided with electrically conductive connecting part, and the spiral heating wire is spirally wound to cover the electrically conductive connecting part.
[0006] As a further improvement of the utility model, the heating wire further includes fastening heating wire, the fastening heating wire is parallel to the electrically conductive connecting part, and the electrically conductive connecting part is wound and covered by the spiral heating wire.
[0007] As a further improvement of the utility model, the winding and covering cross-sectional area of the spiral heating wire gradually decreases from the top end of the electrically conductive connecting part to the bottom end of the electrically conductive connecting part.
[0008] As a further improvement of the utility model, the winding and covering cross-sectional area of the top end of the electrically conductive connecting part is equal to the electrically conductive cross-sectional area of the bottom end of the electrically conductive column.
[0009] As a further improvement of the utility model, the bracket comprises an insulating base, a conductive sheet arranged on the upper side of the insulating base, and a mounting base arranged on the lower side of the insulating base, the conductive column top end penetrates through the insulating base and is connected with the conductive sheet, and the conductive column bottom end is connected with the heating wire through the mounting base.
[0010] As a further improvement of the utility model, the mounting base is sequentially provided with a first mounting hole and a second mounting hole along the length direction of the mounting base, the first mounting hole and the second mounting hole are coaxial and communicated, the first mounting hole is connected with the conductive column, and the second mounting hole is connected with the heating wire.
[0011] As a further improvement of the utility model, the mounting base is provided with a locking mounting hole, the locking mounting hole is axially perpendicular to and communicated with the second mounting hole, and the locking mounting hole is provided with a locking piece.
[0012] As a further improvement of the utility model, the mounting base is provided with a sealing ring groove, the sealing ring groove is coaxial with and communicated with the first mounting hole, and the sealing ring groove is provided with a sealing ring.
[0013] As a further improvement of the utility model, the insulating base is provided with a through hole, the conductive column top end extends radially outward to form a limiting boss, and after the conductive column penetrates through the through hole, the limiting boss is located between the insulating base and the conductive sheet.
[0014] As a further improvement of the utility model, the bracket further comprises an insulating ring sleeved on the conductive column, and the insulating ring is arranged between the insulating base and the mounting base.
[0015] Compared with the prior art, the utility model has the following advantages:
[0016] 1、 the utility model discloses a kind of heating devices, and the conductive connecting part of heating wire main body both ends is covered by spiral heating wire, effectively increase the cross section of heating wire both ends, on one hand, increase the contact area of heating wire and conductive column, it is favorable to avoid the situation that heating wire and conductive column contact badly occur;On the other hand, can effectively reduce resistance, thereby reduce the heat accumulation due to resistance heating, make heat distribution more uniform, avoid local overheating, reduce the risk of fusing, guarantee the service life of heating wire.
[0017] 2. The heating device provided by the utility model, the winding and covering cross-sectional area of the spiral heating wire gradually decreases from the top end of the conductive connecting part to the bottom end of the conductive connecting part, on the one hand, the winding and covering area of the top end of the conductive connecting part is large, thus effectively increasing the contact area of the heating wire and the conductive column, avoiding the occurrence of poor contact, and at the same time, the heating wire end portion can be in interference fit with the support, and the connection is more stable, on the other hand, the winding and covering cross-sectional area of the spiral heating wire decreases in steps, thus effectively avoiding the occurrence of local overheating due to the sudden decrease of the cross-sectional area of the two ends of the heating wire, being beneficial to reducing the risk of fusing and guaranteeing the service life of the heating wire.
[0018] 3. The heating device provided by the utility model, the conductive column and the heating wire are respectively plugged and matched with the mounting seat, and quick installation and disassembly can be realized. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.
[0020] Figure 1 It is a structural schematic view of the heating device of the utility model embodiment.
[0021] Figure 2 It is a sectional view of the heating device of the utility model embodiment.
[0022] Figure 3 It is an exploded view of the heating device of the utility model embodiment.
[0023] Among them, the corresponding number of the sign is as follows:
[0024] 1, support; 11, insulating seat; 111, through hole; 12, conductive sheet; 13, mounting seat; 131, first mounting hole; 132, second mounting hole; 133, locking mounting hole; 134, locking piece; 135, sealing ring groove; 136, sealing ring; 14, insulating ring; 2, conductive column; 21, limiting boss; 3, heating wire; 31, heating wire main body; 311, conductive connecting part; 32, spiral heating wire; 33, fastening heating wire. DETAILED DESCRIPTION
[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. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see the appendix Figure 1 To be continued Figure 3 This embodiment provides a heating device, including a support 1, two conductive posts 2 disposed on the support 1, and a heating wire 3 whose two ends are electrically connected to the two conductive posts 2 respectively. The heating wire 3 includes a heating wire body 31 and a spiral heating wire 32. The heating wire body 31 has conductive connection portions 311 at both ends, and the spiral heating wire 32 is spirally wound around and covers the conductive connection portions 311. In this embodiment, the conductive connection portions 311 at both ends of the heating wire body 31 are wrapped around and covered by the spiral heating wire 32, which effectively increases the cross-sectional area at both ends of the heating wire 3. On the one hand, it increases the contact area between the heating wire 3 and the conductive posts 2, which helps to avoid poor contact between the heating wire 3 and the conductive posts 2. On the other hand, it can effectively reduce resistance, thereby reducing the heat accumulation caused by resistance heating, making the heat distribution more uniform, avoiding local overheating, reducing the risk of melting, and ensuring the service life of the heating wire 3.
[0027] In some embodiments, the heating wire 3 further includes a fastening heating wire 33, which is parallel to and closely attached to the conductive connection portion 311, and together with the conductive connection portion 311, is wound and covered by the spiral heating wire 32. By adding the fastening heating wire 33, the winding and covering area of the spiral heating wire 32 can be further increased, increasing the contact area between the heating wire 3 and the conductive post 2, avoiding poor contact between the heating wire 3 and the conductive post 2, and reducing resistance, thus lowering the risk of melting. At the same time, due to the addition of the fastening heating wire 33, the winding and covering of the spiral heating wire 32 is more convenient and secure, which helps to improve the overall structural stability of the heating wire 3.
[0028] Further, the winding and covering cross-sectional area of the spiral heating wire 32 gradually decreases from the top end of the conductive connecting part 311 to the bottom end of the conductive connecting part 311. On the one hand, since the winding and covering area of the top end of the conductive connecting part 311 is large, the contact area between the heating wire 3 and the conductive column 2 is effectively increased, avoiding poor contact and making the end of the heating wire 3 interference fit with the support 1, and the connection is more stable. On the other hand, since the winding and covering cross-sectional area of the spiral heating wire 32 gradually decreases, the risk of local overheating caused by the sudden decrease in cross-sectional area of the heating wire 3 at both ends can be effectively avoided, which is beneficial to reduce the risk of melting and protect the service life of the heating wire 3. In the specific implementation process, it can be realized in various ways. For example, the spiral heating wire 32 is gradually tightened from the top end of the conductive connecting part 311 to the bottom end of the conductive connecting part 311, so that the winding and covering area gradually decreases. For another example, the diameter of the spiral heating wire 32 is gradually reduced, and the end of the spiral heating wire 32 with a large diameter is wound at the top end of the conductive connecting part 311, and the end of the spiral heating wire 32 with a small diameter is wound at the bottom end of the conductive connecting part 311, thereby gradually reducing the winding and covering area. For another example, the diameter of the fastening heating wire 33 is gradually reduced, and the end of the fastening heating wire 33 with a large diameter is close to the top end of the conductive connecting part 311, and the end of the fastening heating wire 33 with a small diameter is close to the bottom end of the conductive connecting part 311, so that the winding and covering area of the spiral heating wire 32 gradually decreases. For another example, two fastening heating wires 33 with different lengths are provided, and the top ends of the two fastening heating wires 33 are flush with the top end of the conductive connecting part 311, and the lower ends of the two fastening heating wires 33 are long and short, so that the winding and covering area of the spiral heating wire 32 gradually decreases.
[0029] As preferred, the winding and covering cross-sectional area of the top end of the conductive connecting part 311 is equal to the conductive cross-sectional area of the bottom end of the conductive column 2. It is beneficial to form good contact between the heating wire 3 and the conductive column 2, and avoid poor contact.
[0030] In some embodiments, the support 1 includes an insulating seat 11, a conductive sheet 12 arranged on the upper side of the insulating seat 11, and a mounting seat 13 arranged on the lower side of the insulating seat 11, the top end of the conductive column 2 passes through the insulating seat 11 and is connected with the conductive sheet 12, and the bottom end of the conductive column 2 is connected with the heating wire 3 through the mounting seat 13. The conductive column 2 and the heating wire 3 are respectively inserted and matched with the mounting seat 13, which can realize quick installation and disassembly.
[0031] Specifically, the mounting seat 13 is sequentially provided with a first mounting hole 131 and a second mounting hole 132 along the length direction of the mounting seat 13, the first mounting hole 131 and the second mounting hole 132 are coaxial and communicated, the first mounting hole 131 is connected with the conductive column 2, and the second mounting hole 132 is connected with the heating wire 3. When it is needed to connect the heating wire 3 with the conductive column 2, the conductive column 2 is only needed to be inserted into the first mounting hole 131 of the mounting seat 13, and the heating wire 3 is only needed to be inserted into the second mounting hole 132 of the mounting seat 13, so that the structure is simple, and the mounting and dismounting are convenient.
[0032] In some embodiments, the mounting seat 13 is provided with a locking mounting hole 133, the locking mounting hole 133 is axially perpendicular to and communicated with the second mounting hole 132, and the locking mounting hole 133 is provided with a locking piece 134. The locking piece 134 can be a screw, which is threadedly matched with the locking mounting hole 133. When the heating wire 3 is inserted into the second mounting hole 132, the screw is rotated and tightened, so that a lateral force is applied to the heating wire 3, and the stability of the connection structure of the heating wire 3 and the mounting seat 13 is improved, and the heating wire 3 is prevented from being separated from the mounting seat 13.
[0033] In some embodiments, the mounting seat 13 is provided with a sealing ring groove 135, the sealing ring groove 135 is coaxial and communicated with the first mounting hole 131, and the sealing ring groove 135 is provided with a sealing ring 136. When the conductive column 2 is inserted into the first mounting hole 131, the sealing ring 136 is located between the conductive column 2 and the mounting seat 13, so that the stability of the connection structure of the conductive column 2 and the mounting seat 13 is improved, and the conductive column 2 is prevented from being separated from the mounting seat 13.
[0034] In some embodiments, the insulating seat 11 is provided with a through hole 111, the top end of the conductive column 2 extends radially outward to form a limiting boss 21, and the limiting boss 21 is located between the insulating seat 11 and the conductive sheet 12 after the conductive column 2 passes through the through hole 111. When the conductive column 2 is installed, the bottom end of the conductive column 2 passes through the through hole 111 on the insulating seat 11, at this time, the conductive column 2 can be positioned on the insulating seat 11 under the limiting action of the limiting boss 21 at the top end of the conductive column 2, the conductive column 2 does not need to be held and positioned by hand, and then the conductive sheet 12 is placed on the conductive column 2, and the conductive column 2 and the conductive sheet 12 are locked and connected through the screw, so that the installation is convenient and fast.
[0035] In some embodiments, the bracket 1 further comprises an insulating ring 14 sleeved on the conductive column 2, the insulating ring 14 is arranged between the insulating seat 11 and the mounting seat 13. Specifically, the insulating seat 11 can be made of ceramic, the conductive sheet 12 can be an aluminum alloy conductive sheet, the mounting seat 13 can be a copper mounting seat, and the insulating ring 14 can be made of PEEK (polyether ether ketone). The overall bracket 1 cooperates the insulating seat 11, the conductive sheet 12, the mounting seat 13 and the insulating ring 14, which can realize good conductive performance and good safety performance.
[0036] It should be understood that the terms "first", "second" and the like in the present application are used to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the present application, and similarly, the "second" information can also be referred to as "first" information. In addition, the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0037] The above is the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications are also considered within the scope of protection of the present application.
Claims
1. A heating device, characterized in that, The application relates to a heating wire, which comprises a support (1), two conductive columns (2) arranged on the support (1), and heating wires (3) electrically connected with the two conductive columns (2) respectively, wherein the heating wire (3) comprises a heating wire main body (31) and a spiral heating wire (32), the heating wire main body (31) is provided with conductive connecting parts (311) at two ends respectively, and the spiral heating wire (32) is spirally wrapped around the conductive connecting parts (311).
2. A heating device according to claim 1, characterised in that The heating wire (3) further comprises a fastening heating wire (33) which is parallel to and closely attached to the conductive connecting parts (311) and is wrapped around the conductive connecting parts (311) together with the spiral heating wire (32).
3. A heating device according to claim 1, wherein The wrapped cross-sectional area of the spiral heating wire (32) gradually decreases from the top end of the conductive connecting part (311) to the bottom end of the conductive connecting part (311).
4. A heating device according to claim 1, wherein The wrapped cross-sectional area of the top end of the conductive connecting part (311) is equal to the conductive cross-sectional area of the bottom end of the conductive column (2).
5. A heating device according to any one of claims 1-4, characterised in that The support (1) comprises an insulating base (11), a conductive sheet (12) arranged on the upper side of the insulating base (11), and a mounting base (13) arranged on the lower side of the insulating base (11), the top end of the conductive column (2) penetrates through the insulating base (11) and is connected with the conductive sheet (12), and the bottom end of the conductive column (2) is connected with the heating wire (3) through the mounting base (13).
6. A heating device according to claim 5, wherein The mounting base (13) is sequentially provided with a first mounting hole (131) and a second mounting hole (132) along the length direction of the mounting base (13), the first mounting hole (131) and the second mounting hole (132) are coaxial and communicated, the first mounting hole (131) is connected with the conductive column (2), and the second mounting hole (132) is connected with the heating wire (3).
7. A heating device according to claim 6, characterised in that The mounting base (13) is provided with a locking mounting hole (133), the locking mounting hole (133) is axially perpendicular to and communicated with the second mounting hole (132), and the locking mounting hole (133) is provided with a locking piece (134).
8. A heating device according to claim 6, wherein The mounting base (13) is provided with a sealing ring groove (135), the sealing ring groove (135) is coaxial with and communicated with the first mounting hole (131), and the sealing ring groove (135) is provided with a sealing ring (136).
9. A heating device according to claim 5, wherein The insulating base (11) is provided with a through hole (111), the top end of the conductive column (2) extends outward in the radial direction to form a limiting boss (21), and after the conductive column (2) penetrates through the through hole (111), the limiting boss (21) is located between the insulating base (11) and the conductive sheet (12).
10. A heating device according to claim 5, wherein The support (1) further comprises an insulating ring (14) sleeved on the conductive column (2), and the insulating ring (14) is arranged between the insulating base (11) and the mounting base (13).