Large-current power supply connecting device for mobile hot area of vacuum heat treatment furnace
By designing conductive plates, conductive electrodes and elastic contact structures in the vacuum heat treatment furnace, the high cost and high temperature adaptability problems of power supply for the mobile hot zone in the vacuum industrial furnace are solved, and a compact and economical power supply solution is achieved.
Patent Information
- Application Number
- CN202423025624.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The power supply design for the mobile hot zone in existing vacuum industrial furnaces requires large currents, resulting in large and expensive cables and drag chains, and is not suitable for high-temperature environments.
A high-current power supply connection device for the mobile hot zone of a vacuum heat treatment furnace is designed. The device adopts a conductive plate, a conductive electrode, a pull rod, a spring and an insulating structure to realize elastic contact power supply between the conductive plate and the conductive electrode.
It realizes mobile power supply in a narrow space, reduces costs, is suitable for high temperature environments, and avoids the use of large drag chains and thick cables.
Smart Images
Figure CN223487379U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum industrial furnaces, and more specifically, to a high-current power supply connection device for the moving hot zone of a vacuum heat treatment furnace. Background Technology
[0002] In the vacuum industrial furnace industry, normal hot zones are fixed, and there is rarely a need for movement. If there is a movable hot zone, a design is typically used where a flexible cable is placed inside a cable chain. One end of the cable chain is installed on the movable hot zone, and the other end is installed in a fixed position. The cable moves along with the hot zone inside the cable chain, bending as it goes.
[0003] To avoid arcing during heating in a vacuum environment, vacuum industrial furnaces typically employ a low-voltage, high-current design, resulting in a very high power supply current and requiring thick cables and cable chains. Consequently, this design is only suitable for use in open environments and cannot be used in confined spaces. Furthermore, the thick, flexible cables and cable chains are expensive, leading to significant costs.
[0004] In addition, because the cable sheath is not heat-resistant, it will break and leak electricity at high temperatures. Therefore, the structure of cable chains and cables is not suitable for high-temperature environments. Utility Model Content
[0005] This utility model addresses the aforementioned deficiencies in the prior art by providing a high-current power supply connection device for the moving hot zone of a vacuum heat treatment furnace.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: a high-current power supply connection device for the moving hot zone of a vacuum heat treatment furnace is constructed. The connection device includes a first fixed plate, a second fixed plate, a pull rod fixed between the first fixed plate and the second fixed plate, a first conductive plate movably disposed on the pull rod and located between the first fixed plate and the second fixed plate, a second conductive plate movably disposed on the pull rod and located between the first fixed plate and the second fixed plate, an insulating limiting block sleeved on the pull rod and located between the first conductive plate and the second conductive plate, a first high-temperature spring sleeved on the pull rod and located between the first conductive plate and the first fixed plate, a second high-temperature spring sleeved on the pull rod and located between the second conductive plate and the second fixed plate, a first flexible copper busbar or a first cable fixedly and electrically connected to the first conductive plate, a second flexible copper busbar or a second cable fixedly and electrically connected to the second conductive plate, and a conductive electrode fixed on the moving hot zone and insertable between the first conductive plate and the second conductive plate and electrically connected to the first conductive plate and the second conductive plate.
[0007] The thickness of the conductive electrode is greater than the height of the insulating limiting block.
[0008] In the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace described in this utility model, the first fixed plate is also fixed with a first guide rod arranged parallel to the pull rod, and the second fixed plate is also fixed with a second guide rod arranged parallel to the pull rod.
[0009] In the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace described in this utility model, the first conductive plate is provided with a first guide hole through which the pull rod can pass, the second conductive plate is provided with a second guide hole through which the pull rod can pass, the first conductive plate is also provided with a third guide hole through which the first guide rod can pass, and the second conductive plate is also provided with a fourth guide hole through which the second guide rod can pass.
[0010] In the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace described in this utility model, a third high-temperature spring is sleeved on the first guide rod, and the third high-temperature spring is located between the first fixed plate and the first conductive plate. A fourth high-temperature spring is sleeved on the second guide rod, and the fourth high-temperature spring is located between the second fixed plate and the second conductive plate.
[0011] In the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace described in this utility model, the pull rod is fitted with a first insulating pad and a second insulating pad. The first insulating pad is located between the first conductive plate and the first fixed plate. The two ends of the first high-temperature spring elastically abut against the first insulating pad and the first conductive plate, respectively. The second insulating pad is located between the second conductive plate and the second fixed plate. The two ends of the second high-temperature spring elastically abut against the second insulating pad and the second conductive plate, respectively.
[0012] In the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace described in this utility model, the first guide rod is also provided with a third insulating pad, and the two ends of the third high-temperature spring are elastically abutting against the third insulating pad and the first conductive plate, respectively. The fourth guide rod is also provided with a fourth insulating pad, and the two ends of the fourth high-temperature spring are elastically abutting against the fourth insulating pad and the second conductive plate, respectively.
[0013] In the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace described in this utility model, the first end of the pull rod is provided with a first stud, which passes through the first fixing plate and is screwed to the first nut. The second end of the pull rod is provided with a second stud, which passes through the second fixing plate and is screwed to the second nut.
[0014] In the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace described in this utility model, a fifth insulating pad is provided between the first nut and the first fixed plate, and a sixth insulating pad is provided between the second nut and the second fixed plate.
[0015] The high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace of this utility model has the following beneficial effects: When using the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace of this utility model, the first soft copper busbar or the first cable and the second soft copper busbar or the second cable are electrically connected to the power supply. The moving hot zone moves and drives the conductive electrode to insert between the first conductive plate and the second conductive plate. Relying on the elastic restoring force of the first high-temperature spring and the second high-temperature spring, the first conductive plate and the second conductive plate are pushed into contact with the conductive electrode, thereby realizing the moving power supply to the moving hot zone. This connection device has a simple and compact structure, without a large drag chain and a thick cable, and has a low cost. At the same time, it can be used in places where the installation space is narrow and drag chains cannot be arranged. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:
[0017] Figure 1 This is a side view of the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace of this utility model.
[0018] Figure 2 This is a top view of the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace of this utility model. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0020] like Figure 1 , 2As shown, in the first embodiment of the high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace of this utility model, the connection device 10 includes a first fixing plate 11, a second fixing plate 12, a pull rod 13 fixed between the first fixing plate 11 and the second fixing plate 12, a first conductive plate 14 movably disposed on the pull rod 13 and located between the first fixing plate 11 and the second fixing plate 12, a second conductive plate 15 movably disposed on the pull rod 13 and located between the first fixing plate 11 and the second fixing plate 12, an insulating limiting block 16 sleeved on the pull rod 13 and located between the first conductive plate 14 and the second conductive plate 15, and an insulating limiting block 16 sleeved on the pull rod 13 and located between the first conductive plate 14 and the second conductive plate 15. The rod 13 has a first high-temperature spring 17 located between the first conductive plate 14 and the first fixed plate 11, a second high-temperature spring 18 sleeved on the rod 13 and located between the second conductive plate 15 and the second fixed plate 12, a first flexible copper busbar 19 or a first cable fixedly connected to the first conductive plate 14, a second flexible copper busbar 20 or a second cable fixedly connected to the second conductive plate 15, and a conductive electrode 22 fixed on the movable hot zone 21 that can be inserted between the first conductive plate 14 and the second conductive plate 15 and is electrically connected to the first conductive plate 14 and the second conductive plate 15; the thickness of the conductive electrode 22 is greater than the height of the insulating limiting block 16.
[0021] Preferably, the first conductive plate 14, the second conductive plate 15, and the conductive electrode 22 are all made of copper conductive material.
[0022] When using the high-current power supply connection device for the movable hot zone of the vacuum heat treatment furnace of this utility model, the first fixing plate 11 and the second fixing plate 12 are welded and fixed to the fixed end of the equipment. The first soft copper busbar 19 or the first cable and the second soft copper busbar 20 or the second cable are electrically connected to the power supply. The movable hot zone 21 moves and drives the conductive electrode 22 to be inserted between the first conductive plate 14 and the second conductive plate 15. Relying on the elastic restoring force of the first high-temperature spring 17 and the second high-temperature spring 18, the first conductive plate 14 and the second conductive plate 15 are pushed into contact with the conductive electrode 22, thereby realizing the movable power supply to the movable hot zone 21. This connection device 10 has a simple and compact structure, without a large drag chain and a thick cable, and has a low cost. At the same time, it can be used in places where the installation space is narrow and the drag chain cannot be arranged.
[0023] To more accurately control the up-and-down movement direction of the first conductive plate 14 and the second conductive plate 15, the first fixed plate 11 is also fixed with a first guide rod 23 arranged parallel to the pull rod 13, and the second fixed plate 12 is also fixed with a second guide rod 24 arranged parallel to the pull rod 13.
[0024] Specifically, the first conductive plate 14 is provided with a first guide hole through which the pull rod 13 can pass, the second conductive plate 15 is provided with a second guide hole through which the pull rod 13 can pass, the first conductive plate 14 is also provided with a third guide hole through which the first guide rod 23 can pass, and the second conductive plate 15 is also provided with a fourth guide hole through which the second guide rod 24 can pass.
[0025] Furthermore, a third high-temperature spring 25 is sleeved on the first guide rod 23, and the third high-temperature spring 25 is located between the first fixed plate 11 and the first conductive plate 14. A fourth high-temperature spring 26 is sleeved on the second guide rod 24, and the fourth high-temperature spring 26 is located between the second fixed plate 12 and the second conductive plate 15.
[0026] To achieve better insulation protection, a first insulating pad 27 and a second insulating pad 28 are fitted onto the pull rod 13. The first insulating pad 27 is located between the first conductive plate 14 and the first fixed plate 11. The two ends of the first high-temperature spring 17 elastically abut against the first insulating pad 27 and the first conductive plate 14, respectively. The second insulating pad 28 is located between the second conductive plate 15 and the second fixed plate 12. The two ends of the second high-temperature spring 18 elastically abut against the second insulating pad 28 and the second conductive plate 15, respectively.
[0027] Furthermore, the first guide rod 23 is also provided with a third insulating pad 29, and the two ends of the third high temperature spring 25 are elastically abutting against the third insulating pad 29 and the first conductive plate 14 respectively. The fourth guide rod is also provided with a fourth insulating pad 30, and the two ends of the fourth high temperature spring 26 are elastically abutting against the fourth insulating pad 30 and the second conductive plate 15 respectively.
[0028] In this embodiment, the first end of the pull rod 13 is provided with a first stud, which passes through the first fixing plate 11 and is screwed to the first nut 31. The second end of the pull rod 13 is provided with a second stud, which passes through the second fixing plate 12 and is screwed to the second nut 32.
[0029] Furthermore, a fifth insulating pad 33 is provided between the first nut 31 and the first fixing plate 11, and a sixth insulating pad 34 is provided between the second nut 32 and the second fixing plate 12.
[0030] Furthermore, in this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," "stacked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A high-current power supply connection device for the moving hot zone of a vacuum heat treatment furnace, characterized in that, The connecting device includes a first fixing plate, a second fixing plate, a pull rod fixed between the first fixing plate and the second fixing plate, a first conductive plate movably disposed on the pull rod and located between the first fixing plate and the second fixing plate, a second conductive plate movably disposed on the pull rod and located between the first fixing plate and the second fixing plate, an insulating limiting block sleeved on the pull rod and located between the first conductive plate and the second conductive plate, a first high-temperature spring sleeved on the pull rod and located between the first conductive plate and the first fixing plate, a second high-temperature spring sleeved on the pull rod and located between the second conductive plate and the second fixing plate, a first flexible copper busbar or a first cable fixedly and electrically connected to the first conductive plate, a second flexible copper busbar or a second cable fixedly and electrically connected to the second conductive plate, and a conductive electrode fixed on the movable hot zone and capable of being inserted between the first conductive plate and the second conductive plate and electrically connected to the first conductive plate and the second conductive plate; The thickness of the conductive electrode is greater than the height of the insulating limiting block.
2. The high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace according to claim 1, characterized in that, The first fixing plate is also fixed with a first guide rod arranged parallel to the pull rod, and the second fixing plate is also fixed with a second guide rod arranged parallel to the pull rod.
3. The high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace according to claim 2, characterized in that, The first conductive plate is provided with a first guide hole through which the pull rod can pass, the second conductive plate is provided with a second guide hole through which the pull rod can pass, the first conductive plate is also provided with a third guide hole through which the first guide rod can pass, and the second conductive plate is also provided with a fourth guide hole through which the second guide rod can pass.
4. The high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace according to claim 3, characterized in that, A third high-temperature spring is sleeved on the first guide rod, and the third high-temperature spring is located between the first fixed plate and the first conductive plate. A fourth high-temperature spring is sleeved on the second guide rod, and the fourth high-temperature spring is located between the second fixed plate and the second conductive plate.
5. The high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace according to claim 4, characterized in that, The pull rod is fitted with a first insulating pad and a second insulating pad. The first insulating pad is located between the first conductive plate and the first fixed plate. The two ends of the first high-temperature spring are elastically abutting against the first insulating pad and the first conductive plate, respectively. The second insulating pad is located between the second conductive plate and the second fixed plate. The two ends of the second high-temperature spring are elastically abutting against the second insulating pad and the second conductive plate, respectively.
6. The high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace according to claim 5, characterized in that, The first guide rod is also provided with a third insulating pad, and the two ends of the third high-temperature spring are elastically abutting against the third insulating pad and the first conductive plate, respectively. The first guide rod is also provided with a fourth insulating pad, and the two ends of the fourth high-temperature spring are elastically abutting against the fourth insulating pad and the second conductive plate, respectively.
7. The high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace according to claim 1, characterized in that, The first end of the pull rod is provided with a first stud, which passes through the first fixing plate and is screwed to the first nut. The second end of the pull rod is provided with a second stud, which passes through the second fixing plate and is screwed to the second nut.
8. The high-current power supply connection device for the moving hot zone of the vacuum heat treatment furnace according to claim 7, characterized in that, A fifth insulating pad is provided between the first nut and the first fixing plate, and a sixth insulating pad is provided between the second nut and the second fixing plate.