CN113905463A

CN113905463A - Quartz electric heating tube embedded with thermal fuse

Info

Publication number: CN113905463A
Application number: CN202111369412.9A
Authority: CN
Inventors: 李雪真; 张爱民; 韩涛
Original assignee: Qingdao Qianyi New Material Technology Co ltd
Current assignee: Qingdao Qianyi New Material Technology Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-01-07

Abstract

The invention discloses a quartz electric heating tube with a thermal fuse embedded inside, which relates to the technical field of electric heating tubes and comprises: the electrode holder is provided with an eccentric hole, a ball collision mechanism is arranged in the eccentric hole, the electric heating wire is connected with the corresponding ball collision mechanism, the central position of the electrode holder provided with the eccentric hole is connected through a connecting rod, the conduction device is sleeved on the connecting rod, a plurality of through holes are formed in the conduction device on a circle opposite to the circle where the ball collision mechanism is located at intervals, and a thermal fuse is arranged in each through hole in a pressure-sharing mode. According to the invention, the conduction device is arranged between the first quartz electric heating tube body and the second quartz electric heating tube body, the ball collision mechanism is arranged on the electrode base, and the conduction device is provided with the plurality of thermal fuses in the axial direction, so that the rapid switching of the thermal fuses is realized, the cost for replacing the quartz electric heating tube due to the fact that the thermal fuses are burnt is reduced, and the service life of the quartz electric heating tube is prolonged.

Description

Quartz electric heating tube embedded with thermal fuse

Technical Field

The invention relates to the technical field of electric heating tubes, in particular to a quartz electric heating tube with a thermal fuse embedded inside.

Background

The quartz electrothermal tube is composed of quartz tube, ceramic electrode holder and spiral resistance wire, and is suitable for heating air, oil, water, chemical medium, hot-pressing mould, melting salt, alkali and low-melting-point alloy, etc. The heat pump has the characteristics of high heat efficiency, long service life, high mechanical strength, convenience in installation, safety, reliability and the like. Therefore, the electric heating pipe is widely used for civil heating, and is particularly widely used for electric products such as electric water heaters, electric heating faucets, air conditioners, water dispensers and the like.

However, because the control device of many machines cannot timely disconnect the circuit in the use environment, that is, when the machine abnormally works, the quartz electric heating tube is always heated, and thus the quartz electric heating tube is over-burnt, causing disasters such as fire disasters, and the like, in the prior art, the quartz electric heating tube is additionally provided with the thermal fuse, and then the quartz electric heating tube is protected, and the over-burning phenomenon is prevented.

Disclosure of Invention

In view of the above, the present invention provides a quartz electric heating tube with a thermal fuse embedded therein, which aims to solve one of the problems in the background art, and when the thermal fuse in the tube body of the quartz electric heating tube is burned out, the switching of the thermal fuse can be rapidly realized, thereby reducing the cost of replacing the quartz electric heating tube due to the burning out of the thermal fuse.

In order to achieve the purpose, the invention adopts the following technical scheme:

a quartz electric heating tube embedded with a thermal fuse comprises: the electric heating wire inside the first quartz electric heating tube body and the second quartz electric heating tube body is connected with the corresponding bead collision mechanism, the central position of the electrode seat at one end of the eccentric hole is arranged on the first quartz electric heating tube body and the second quartz electric heating tube body and is connected with a connecting rod, the conduction device is sleeved on the connecting rod, a plurality of through holes are arranged on the conduction device at intervals on a circle opposite to the bead collision mechanism, a thermal fuse is arranged in each through hole in a pressure-equalizing manner, and the bead collision mechanism on the first quartz electric heating tube body and the second quartz electric heating tube body is conducted by the thermal fuse in one through hole through the rotation of the conduction device .

Further, the conduction device comprises a first gland, a circular ring column and a second gland, wherein the circular ring column is fixedly arranged between the first gland and the second gland.

Further, the through-hole is in including setting up first horn hole, the setting on first gland round hole and the second horn hole of setting on the second gland on the ring post, the receipts mouth end in first horn hole and second horn hole is close to the round hole, just the diameter of the receipts mouth end in first horn hole and second horn hole is less than the diameter of round hole, and is greater than the diameter of thermal fuse.

Furthermore, the center positions of the two ends of the circular column are provided with counter bores for mounting bearings, and the connecting rod is sleeved with the bearings.

Further, the ball collision mechanism comprises a cylinder, a spring and a conductive ball, the cylinder is installed in the eccentric hole, one end of the cylinder is of a closing structure, the diameter of the closing structure is smaller than that of the conductive ball, and when the cylinder is installed in the eccentric hole, the spring is pressed and installed in the cylinder through the conductive ball.

Further, the electrode holder provided with the eccentric hole on the first quartz electric heating tube body and the second quartz electric heating tube body is provided with a communication hole for penetrating the electric heating wire, the communication hole is communicated with the eccentric hole, the bottom of the eccentric hole is provided with a conductive plate, the conductive plate is connected with the electric heating wire, and the conductive plate is respectively contacted with the spring and the cylinder.

Furthermore, the first quartz electric heating tube body and the second quartz electric heating tube body are provided with the eccentric holes, the center position of the electrode seat is provided with a threaded hole for installing the connecting rod, and both ends of the connecting rod are provided with threaded sections matched with the threaded holes.

Furthermore, one end of the electric heating wire, which is far away from the electrode seat provided with the eccentric hole, extends out of the electrode seat at the corresponding end through a leading-out rod.

Further, the heating wire is spiral.

According to the technical scheme, compared with the prior art, the quartz electric heating tube internally embedded with the thermal fuse is provided, the conduction device is arranged between the first quartz electric heating tube body and the second quartz electric heating tube body, the bead collision mechanisms are arranged on the electrode bases at one ends of the first quartz electric heating tube body and the second quartz electric heating tube body, the conduction device is provided with the thermal fuses in the axial direction, when one thermal fuse is burnt, the thermal fuse communicated with the heating wire is switched by rotating the conduction device, so that the rapid switching of the thermal fuse is realized, the time cost for replacing the quartz electric heating tube due to the burning of the thermal fuse is reduced, and meanwhile, the service life of the quartz electric heating tube can be prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural view of a quartz electrical heating tube with a thermal fuse embedded therein according to the present invention;

FIG. 2 is an enlarged view of a portion of A of FIG. 1 in accordance with the present invention;

fig. 3 is a schematic structural diagram of a conduction device provided in the present invention;

FIG. 4 is a top view of FIG. 3 provided in accordance with the present invention;

FIG. 5 is a cross-sectional view of B-B of FIG. 4 in accordance with the present invention;

wherein: 1 is a first quartz electric heating tube body; 2 is a second quartz electric heating tube body; 3 is a conducting device; 31 is a first gland; 32 is a circular column; 33 is a second gland; 4 is an electrode holder; 5 is an eccentric hole; 6 is a ball-bumping mechanism; 61 is a cylinder body; 62 is a spring; 63 is a conductive ball; 7 is an electric heating wire; 8 is a connecting rod; 9 is a thermal fuse; 10 is a through hole; 11 is a conductive plate; 12 is a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, an embodiment of the present invention discloses a quartz electric heating tube with a thermal fuse embedded therein, including: the electric heating wire comprises a first quartz electric heating tube body 1, a second quartz electric heating tube body 2 and a conduction device 3, wherein an eccentric hole 5 is correspondingly arranged on an electrode seat 4 at one end of each of the first quartz electric heating tube body 1 and the second quartz electric heating tube body 2, namely, one end of each of the first quartz electric heating tube body 1 and the second quartz electric heating tube body 2 is provided with the eccentric hole 5, the positions of the two eccentric holes 5 are corresponding, a ball collision mechanism 6 is arranged in each eccentric hole 5, the electric heating wires 7 in the first quartz electric heating tube body 1 and the second quartz electric heating tube body 2 are connected with the corresponding ball collision mechanisms 6, wherein the electric heating wires 7 are spiral, the central positions of the electrode seats 4 provided with the eccentric holes 5 on the first quartz electric heating tube body 1 and the second quartz electric heating tube body 2 are connected through connecting rods 8, the conduction device 3 is sleeved on the connecting rods 8, a plurality of through holes 10 are arranged on the conduction device 3 at intervals on a circle opposite to the ball collision mechanisms 6, that is, the diameter of the circle where the ball hitting mechanism 6 is located is the same as the diameter of the circle where the through holes 10 on the conduction device 3 are located, the through holes 10 are preferably arranged in a shaft array manner, and in this embodiment, the through holes 10 are preferably arranged in six. In other embodiments, the number of the through holes 10 can be specifically set according to actual requirements, the number of the through holes 10 is not limited, the thermal fuse 9 is mounted in each through hole 10 in a pressure-equalizing manner, and the thermal fuse 9 in a certain through hole 10 conducts the ball-striking mechanisms 6 on the first quartz electric heating tube body 1 and the second quartz electric heating tube body 2 through the rotation of the conduction device 3.

In the present embodiment, preferably, the conducting device 3 includes a first gland 31, an annular column 32 and a second gland 33, and the annular column 32 is fixedly disposed between the first gland 31 and the second gland 33. Specifically, the through hole 10 includes a first horn hole provided on the first gland 31, a round hole provided on the circular column 32, and a second horn hole provided on the second gland 33, the terminating ends of the first and second horn holes are close to the round hole, the diameters of the terminating ends of the first and second horn holes are smaller than the diameter of the round hole and larger than the diameter of the thermal fuse 9, wherein the first gland 31, the circular column 32, and the second gland 33 are made of an insulating material.

According to some embodiments provided by the present invention, the center positions of the two ends of the circular column 32 are both provided with counter bores for installing the bearings 12, the bearings 12 are sleeved on the connecting rod 8, specifically, the bearings 12 and the connecting rod 8 are in interference fit, and the connecting rod 8 and the round holes are in clearance fit, so that the conduction device 3 can be conveniently and smoothly rotated.

In this embodiment, preferably, the ball striking mechanism 6 comprises a cylinder 61, a spring 62 and a conductive ball 63, the cylinder 61 is installed in the eccentric hole 5, one end of the cylinder 61 is a closed structure with a diameter smaller than that of the conductive ball 63, the conductive ball 63 presses the spring 62 in the cylinder 61 when the cylinder 61 is installed in the eccentric hole 5, wherein the cylinder 61 and the spring 62 are both made of metal.

In this embodiment, the electrode holder 4 with the eccentric hole 5 on the first quartz electric heating tube body 1 and the second quartz electric heating tube body 2 has a communication hole 10 for passing the heating wire 7, the communication hole 10 is communicated with the eccentric hole 5, the bottom of the eccentric hole 5 is provided with a conductive plate 11, the conductive plate 11 is connected with the heating wire 7, the conductive plate 11 is respectively contacted with the spring 62 and the cylinder 61, and the communication between the spring 62, the conductive ball 63 and the heating wire 7 is ensured.

In this embodiment, the center position of the electrode holder 4 provided with the eccentric hole 5 on the first quartz electric heating tube body 1 and the second quartz electric heating tube body 2 has a threaded hole for installing the connecting rod 8, both ends of the connecting rod 8 are provided with threaded sections adapted to the threaded hole, and the threaded connection structure facilitates the disassembly of the first quartz electric heating tube body 1 and the second quartz electric heating tube body 2, so as to realize the replacement of the conduction device 3, and also can replace the thermal fuse 9 damaged in the conduction device 3 alone.

In the above embodiment, one end of the heating wire 7, which is far away from the electrode holder 4 provided with the eccentric hole 5, extends out of the electrode holder 4 at the corresponding end through the extraction rod.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quartz electric heating tube embedded with a thermal fuse is characterized by comprising: the electric heating wire inside the first quartz electric heating tube body and the second quartz electric heating tube body is connected with the corresponding bead collision mechanism, the central position of the electrode seat at one end of the eccentric hole is arranged on the first quartz electric heating tube body and the second quartz electric heating tube body and is connected with a connecting rod, the conduction device is sleeved on the connecting rod, a plurality of through holes are arranged on the conduction device at intervals on a circle opposite to the bead collision mechanism, a thermal fuse is arranged in each through hole in a pressure-equalizing manner, and the bead collision mechanism on the first quartz electric heating tube body and the second quartz electric heating tube body is conducted by the thermal fuse in one through hole through the rotation of the conduction device .

2. The quartz electric heating tube with the thermal fuse embedded therein as claimed in claim 1, wherein the conducting device comprises a first pressing cover, a circular ring column and a second pressing cover, the circular ring column is fixedly arranged between the first pressing cover and the second pressing cover.

3. The quartz electric heating tube embedded with the thermal fuse as claimed in claim 2, wherein the through hole comprises a first bell mouth hole provided on the first pressing cover, a round hole provided on the circular column, and a second bell mouth hole provided on the second pressing cover, the closing ends of the first and second bell mouth holes are close to the round hole, and the diameters of the closing ends of the first and second bell mouth holes are smaller than the diameter of the round hole and larger than the diameter of the thermal fuse.

4. The quartz electric heating tube with the thermal fuse embedded therein as claimed in claim 2 or 3, wherein the center positions of both ends of the circular column are provided with counter bores for mounting bearings, and the bearings are sleeved on the connecting rods.

5. The quartz electric heating tube with the thermal fuse embedded therein as claimed in claim 1, wherein the collision bead mechanism comprises a cylinder, a spring and a conductive ball, the cylinder is installed in the eccentric hole, one end of the cylinder is a closing structure with a diameter smaller than that of the conductive ball, and when the cylinder is installed in the eccentric hole, the conductive ball presses the spring in the cylinder.

6. The quartz electric heating tube with the thermal fuse embedded therein as claimed in claim 5, wherein the electrode holders with the eccentric holes formed on the first and second quartz electric heating tube bodies have communication holes for passing the heating wire, the communication holes are communicated with the eccentric holes, the bottom of the eccentric holes is provided with a conductive plate connected with the heating wire, and the conductive plate is in contact with the spring and the cylinder respectively.

7. The quartz electric heating tube with the thermal fuse embedded therein as claimed in claim 1, wherein the first quartz electric heating tube body and the second quartz electric heating tube body are provided with the eccentric holes, the center of the electrode holder is provided with a threaded hole for mounting the connecting rod, and both ends of the connecting rod are provided with threaded sections adapted to the threaded hole.

8. The quartz electric heating tube with the thermal fuse embedded therein as claimed in claim 1, wherein an end of the heating wire away from the electrode holder provided with the eccentric hole is extended out of the electrode holder corresponding to the end through an extraction rod.

9. The quartz electrical heating tube with a thermal fuse embedded therein as claimed in claim 1, wherein the heating wire is spiral.