A quick-install terminal block structure and ceramic heating tube

Abstract

The present invention is applicable to the field of instant heating technology, and discloses a quick-install terminal block structure and a ceramic heating tube, including a ceramic terminal block and a lead electrode terminal; the lead electrode terminal includes a first contact piece, a second contact piece, an insert and an electrode contact piece. The present invention inserts a plurality of lead electrode terminals into the ceramic terminal block, and utilizes the plurality of electrode contact pieces on the lead electrode terminals to exert force on the tube wall of the ceramic heating tube, so that the end of the ceramic heating tube can be quickly clamped into the ceramic terminal block, thereby realizing rapid assembly of the terminal block structure and the ceramic heating tube, and improving the assembly efficiency of the ceramic heating tube product. Compared with existing ceramic heating tube products, the ceramic heating tube provided by the present invention has high assembly efficiency, can save the number of accessories used and reduce the amount of aluminum electrode slurry used.

Description

Technical Field

[0001] The present invention relates to the technical field of instant heating, and in particular to a quick-install terminal block structure and a ceramic heating tube. Background Art

[0002] At present, the electric heating devices used in electric heating appliances mainly include metal wire heaters and ceramic heaters. Ceramic heaters are becoming more and more popular due to their high thermal efficiency, high thermal power and safety. Ceramic heaters usually include ceramic heating tubes, ceramic heating plates, etc. In order to achieve electrical connection between the ceramic heating tube and the power supply, it is necessary to install a ceramic terminal block at the end of the ceramic heating tube. For example, a ceramic base is described in the Chinese patent document with the announcement number CN220653554U, on which a conductive sheet for wiring is installed. However, the ceramic base needs to be installed on the end of the ceramic heating tube with the help of an elastic ring and a door-shaped clamp, and the assembly efficiency is low. At the same time, the ceramic base needs to be installed at both ends of the ceramic heating tube, which not only further reduces the assembly efficiency of the ceramic heating tube product, but also increases the cost of accessories, which increases the price of the ceramic heating tube product.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the Invention

[0004] The present invention provides a quick-install terminal block structure and a ceramic heating tube, aiming to solve the problem that the ceramic base or ceramic terminal block of the existing ceramic heating tube needs to be installed on the end of the ceramic heating tube with the help of an elastic ring and a door-shaped clamping piece, resulting in low assembly efficiency.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides a quick-install terminal block structure, including a ceramic terminal block and a lead electrode terminal; the ceramic terminal block is provided with a first groove; the lead electrode terminal includes a first contact piece, a second contact piece, an insert piece and an electrode contact piece; the first contact piece contacts the side groove wall of the first groove, the upper end of the electrode contact piece is connected to the upper end of the first contact piece, and the electrode contact piece is arranged obliquely relative to the first contact piece; the second contact piece is arranged at the lower end of the first contact piece, and the second contact piece contacts the bottom groove wall of the first groove; the upper end of the insert piece is connected to the second contact piece, and the insert piece passes through the bottom groove wall of the first groove and out of the ceramic terminal block.

[0007] Optionally, the ceramic terminal seat is a cylindrical ceramic terminal seat, the first groove is a circular groove, and there are two lead electrode terminals.

[0008] Optionally, the lead electrode terminal includes at least two first contact pieces and two electrode contact pieces.

[0009] Optionally, the upper end of the electrode contact sheet is bent toward the first contact sheet to form a guide surface;

[0010] The electrode contact piece is provided with a dividing hole.

[0011] Optionally, a limiting groove is further provided on the side groove wall of the first groove, and the first contact piece is located in the limiting groove.

[0012] Optionally, the limiting groove is provided with a step, and the upper portion of the first contact piece contacts the limiting groove wall above the step.

[0013] Optionally, a vertical groove is provided on the vertical step surface of the step.

[0014] Optionally, wing portions are provided on both sides of the ceramic terminal seat; a second groove is provided on the wing portion, and a screw hole is provided on the bottom groove wall of the second groove.

[0015] The present invention also provides a ceramic heating tube, comprising a heating tube body and the quick-install terminal seat structure; an aluminum electrode layer is provided at the end of the heating tube body along the tube wall of the heating tube body; a heating layer is provided on the heating tube body in series with the aluminum electrode layer, the ceramic terminal seat is sleeved on the end of the heating tube body, the electrode contact piece is clamped with the tube wall of the heating tube body, and the electrode contact piece is in contact with the aluminum electrode layer.

[0016] Optionally, the ceramic terminal seat is sleeved on one end portion of the heating tube body.

[0017] The beneficial effects of the present invention are as follows: the present invention provides a quick-install terminal block structure, which inserts a plurality of lead electrode terminals into the ceramic terminal block, and utilizes the plurality of electrode contact pieces on the lead electrode terminals to generate force on the tube wall of the ceramic heating tube, so that the end of the ceramic heating tube can be quickly clamped into the ceramic terminal block, thereby realizing rapid assembly of the terminal block structure and the ceramic heating tube, and the assembly efficiency of the ceramic heating tube product can be improved.

[0018] In addition, compared with the prior art, the quick-install terminal block structure provided by the present invention has the following advantages:

[0019] (1) The quick-install terminal block structure provided by the present invention is not only easy to assemble with the ceramic heating tube, but also more convenient to disassemble. When it is necessary to remove the terminal block structure from the ceramic heating tube, it is only necessary to pull the ceramic heating tube out of the ceramic terminal block;

[0020] (2) The quick-install terminal block structure provided by the present invention can connect two wires at the same time. It is not necessary to install the terminal block structure at both ends of the ceramic heating tube at the same time to achieve electrical connection between the ceramic heating tube and the power supply. Therefore, it can further improve the assembly efficiency of the ceramic heating tube product. At the same time, due to the reduction in the number of accessories, the production cost of the ceramic heating tube product can be reduced. Accordingly, the price of the ceramic heating tube product can also be reduced, which is conducive to the promotion of ceramic heating tube products by enterprises.

[0021] (3) The quick-install terminal block structure provided by the present invention is easy to assemble and disassemble, and the accessories are highly customized. When an accessory in the quick-install terminal block structure is damaged, it can be easily replaced with a new one.

[0022] The present invention also provides a ceramic heating tube, comprising a heating tube body and the quick-install terminal block structure. Compared with existing ceramic heating tube products, the ceramic heating tube provided by the present invention has high assembly efficiency, can save the number of accessories used and reduce the amount of aluminum electrode slurry used, so that the production cost and price of the ceramic heating tube product can be greatly reduced, which is conducive to enterprises to promote ceramic heating tube products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural breakdown diagram of the ceramic heating tube provided by the present invention.

[0024] Figure 2 It is a structural schematic diagram of the ceramic heating tube provided by the present invention.

[0025] Figure 3 It is a schematic diagram of the quick-install terminal block structure provided by the present invention.

[0026] Figure 4 The structure of the lead electrode terminal is shown in FIG. Figure 1 .

[0027] Figure 5 The structure of the lead electrode terminal is shown in FIG. Figure 2 .

[0028] Figure 6 Schematic diagram of the structure of the ceramic terminal seat.

[0029] Figure 7 1 is a top view of the ceramic terminal block.

[0030] Description of Figure Numbers:

[0031] 1-Ceramic terminal block; 101-First groove; 1011-Limiting groove; 102-Step; 1021-Vertical step; 1022-Vertical groove; 103-Socket;

[0032] 2-lead electrode terminal; 21-first contact piece; 22-second contact piece; 23-insertion piece; 24-electrode contact piece; 241-guide surface; 242-dividing hole;

[0033] 3-wing plate portion; 31-second groove; 311-screw hole;

[0034] 4-heating tube body; 5-heating layer; 6-aluminum electrode layer. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0038] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] See also Figures 1 to 7 The present invention provides a quick-install terminal block structure, including a ceramic terminal block 1 and a lead electrode terminal 2.

[0040] The ceramic terminal seat 1 is provided with a first groove 101 which can be detachably mounted on the end of the ceramic heating tube. The ceramic terminal seat 1 can be obtained by pressing and high-temperature firing of an alumina material.

[0041] The lead electrode terminal 2 includes a first contact piece 21, a second contact piece 22, an insert piece 23, and an electrode contact piece 24. The first contact piece 21 contacts the side wall of the first groove 101, and the upper end of the electrode contact piece 24 is connected to the upper end of the first contact piece 21, and the electrode contact piece 24 is arranged at an angle relative to the first contact piece 21. The second contact piece 22 is provided at the lower end of the first contact piece 21 and contacts the bottom wall of the first groove 101. The upper end of the insert piece 23 is connected to the second contact piece 22, and the insert piece 23 passes through the bottom wall of the first groove 101 and out of the ceramic terminal block 1. The insert piece 23 is used to connect wires. After the quick-install terminal block structure provided by the present invention is installed at the end of the ceramic heating tube, it can electrically connect the ceramic heating tube to the power supply.

[0042] After the quick-install terminal block structure is assembled, when the end of the ceramic heating tube is inserted into the ceramic terminal block 1 (i.e., into the first groove 101), the tube wall of the ceramic heating tube will contact the electrode contact piece 24. As the ceramic heating tube continues to extend into the first groove 101, the tube wall of the ceramic heating tube will squeeze the electrode contact piece 24, causing the electrode contact piece 24 to swing toward the first contact piece 21. When the electrode contact piece 24 is squeezed, in order to resist the force exerted by the tube wall of the ceramic heating tube, the electrode contact piece 24 will exert a force on the tube wall of the ceramic heating tube in the opposite direction. Therefore, the present invention can insert multiple lead electrode terminals 2 into the ceramic terminal block 1, and utilize the force exerted by the multiple electrode contact pieces 24 on the tube wall of the ceramic heating tube to enable the end of the ceramic heating tube to be quickly clamped into the ceramic terminal block 1, thereby achieving rapid assembly of the terminal block structure and the ceramic heating tube, and improving the assembly efficiency of the ceramic heating tube product.

[0043] In addition, the quick-install terminal seat structure provided by the present invention is not only easy to assemble, but also more convenient to disassemble. When the terminal seat structure needs to be removed from the ceramic heating tube, it is only necessary to pull the ceramic heating tube out of the ceramic terminal seat 1. At this time, the electrode contact piece 24 automatically returns to its initial position inclined relative to the first contact piece 21 because it is no longer squeezed by the wall of the ceramic heating tube.

[0044] After the quick-install terminal block structure provided by the present invention is assembled with the ceramic heating tube, the end face of the ceramic heating tube can squeeze the second contact piece 22, so the second contact piece 22 is located between the end face of the ceramic heating tube and the bottom groove wall of the first groove 101 and cannot move. Therefore, the setting of the second contact piece 22 ensures that the lead electrode terminal 2 and the ceramic terminal block 1 are reliably connected after the quick-install terminal block structure is assembled with the ceramic heating tube.

[0045] It can be understood that after the quick-install terminal block structure provided by the present invention is assembled with the ceramic heating tube, the electrode contact piece 24 is in contact with the aluminum electrode layer 6 of the wall of the ceramic heating tube, so that when the plug 23 is connected to the wire, the ceramic heating tube can be electrically connected to the power supply.

[0046] It is understandable that in order to allow the inserting piece 23 to pass through the bottom groove wall of the first groove 101 and out of the ceramic terminal block 1 , an inserting hole 103 is opened on the bottom groove wall of the first groove 101 .

[0047] In the present invention, the first contact piece 21, the second contact piece 22, the insert piece 23 and the electrode contact piece 24 can be integrally formed by phosphor copper material. Phosphor copper material has good electrical conductivity, which ensures that the ceramic heating tube can be electrically connected to the power supply. At the same time, phosphor copper material is easy to process and form, so that it can be used to form the lead electrode terminal 2. In addition, phosphor copper material has high elasticity and toughness, and is not easy to break when subjected to a certain degree of bending or impact, thereby ensuring the integrity of the terminal block. When the terminal block structure is frequently disassembled and used, the end of the ceramic heating tube can still be clamped in the ceramic terminal block 1.

[0048] like Figure 3 and Figure 6 As shown, optionally, the ceramic terminal seat 1 is a cylindrical ceramic terminal seat 1, and the first groove 101 is a circular groove, so that the quick-install terminal seat structure provided by the present invention can be suitable for the assembly requirements of cylindrical ceramic heating tubes. There are two lead electrode terminals 2 installed in the ceramic terminal seat 1, so two wires can be connected to the same quick-install terminal seat structure at the same time. There is no need to install the terminal seat structure at both ends of the ceramic heating tube at the same time, so that the electrical connection between the ceramic heating tube and the power supply can be achieved. This can further improve the assembly efficiency of the ceramic heating tube product. At the same time, due to the reduction in the number of accessories, the production cost of the ceramic heating tube product can be reduced. Accordingly, the price of the ceramic heating tube product can also be reduced, which is beneficial for enterprises to promote ceramic heating tube products.

[0049] like Figure 3 As shown, optionally, the lead electrode terminal 2 includes at least two first contact pieces 21 and two electrode contact pieces 24. The provision of multiple electrode contact pieces 24 ensures that the tube wall of the ceramic heating tube can be effectively clamped, so that the terminal block structure is reliably connected to the ceramic heating tube.

[0050] It is understandable that in order to provide the electrode contact pieces 24 , the number of the electrode contact pieces 24 in each lead electrode terminal 2 should be consistent with the number of the first contact pieces 21 .

[0051] like Figure 5As shown, optionally, the upper end of the electrode contact piece 24 is bent toward the first contact piece 21 to form a guide surface 241. The guide surface 241 can guide the end of the ceramic heating tube to insert into the first groove 101, thereby ensuring that the end of the ceramic heating tube can be smoothly inserted into the ceramic terminal block 1.

[0052] Optionally, the included angle A between the guide surface 241 and the lower portion of the first contact piece 21 is 135° to 140°.

[0053] like Figure 5 As shown, the electrode contact sheet 24 is optionally provided with a segmentation hole 242. The segmentation hole 242 can divide the electrode contact sheet 24 into multiple parts. Thus, when the electrode contact sheet 24 is squeezed by the wall of the ceramic heating tube, the electrode contact sheet 24 has a larger contact area with the wall of the ceramic heating tube, thereby improving the current transmission capability and ensuring that the ceramic heating tube can normally perform its heating function.

[0054] like Figure 6 As shown, optionally, a limiting groove 1011 is further defined in the side groove wall of the first groove 101, and the first contact piece 21 is located in the limiting groove 1011. It is understandable that the number of the limiting grooves 1011 is consistent with the number of the first contact pieces 21. Thus, when the lead electrode terminal 2 includes more than two first contact pieces 21 and electrode contact pieces 24, multiple limiting grooves 1011 can be used to simultaneously limit the movement of multiple first contact pieces 21 on the same lead electrode terminal 2, further ensuring a reliable connection between the lead electrode terminal 2 and the ceramic terminal block 1.

[0055] like Figure 6 As shown, optionally, the limiting groove 1011 is provided with a step 102, and the upper part of the first contact piece 21 can contact the groove wall of the limiting groove 1011 above the step 102, thereby enabling the electrode contact piece 24 connected to the upper end of the first contact piece 21 to be bent toward the first contact piece 21 to form a guide surface 241, ensuring that the end of the ceramic heating tube can be smoothly inserted into the ceramic terminal seat 1.

[0056] like Figure 6 As shown, optionally, a vertical groove 1022 is provided on the vertical step surface 1021 of the step 102. The setting of the vertical groove 1022 can increase the deformation compression of the first contact piece 21 and the electrode contact piece 24. Even if there is a design tolerance in the outer diameter of the ceramic heating tube, it can ensure that the ceramic heating tube is inserted into the ceramic terminal seat 1 and is clamped through the electrode contact piece 24 in contact with it.

[0057] like Figure 2 and Figure 6As shown, optionally, wing portions 3 are provided on both sides of the ceramic terminal seat 1; a second groove 31 is provided on the wing portion 3, and a screw hole 311 is provided on the bottom groove wall of the second groove 31, so that when the terminal seat structure and the ceramic heating tube are assembled, the ceramic heating tube product can be fixedly installed in a place where heating is required with the help of the wing portion 3.

[0058] like Figure 1 and Figure 2 As shown, the present invention also provides a ceramic heating tube, comprising a heating tube body 4 and the quick-install terminal seat structure. The heating tube body 4 can be an alumina heating tube body 4. Furthermore, the end of the heating tube body 4 is coated with an aluminum electrode layer 6 along the tube wall of the heating tube body 4, and the heating tube body 4 is coated with a heating layer 5 connected in series with the aluminum electrode layer 6. The ceramic terminal seat 1 is sleeved on the end of the heating tube body 4, and the electrode contact piece 24 is clamped with the tube wall of the heating tube body 4, and the electrode contact piece 24 is in contact with the aluminum electrode layer 6. When the plug 23 is connected to the wire, the electrical connection between the ceramic heating tube and the power supply can be achieved.

[0059] When the aluminum electrode layer 6 introduces current through the quick-install terminal block structure, the heating layer 5 can be connected to the aluminum electrode layer 6, so that the heating layer 5 can generate heat to heat the outside.

[0060] Since the quick-install terminal block structure provided by the present invention has the advantages of simple disassembly and assembly and can be quickly assembled on the heating tube body 4, the ceramic heating tube provided by the present invention has high assembly efficiency. When an enterprise adopts the quick-install terminal block structure, the enterprise's production efficiency can be improved.

[0061] like Figure 1 and Figure 2 As shown, optionally, the ceramic terminal seat 1 is sleeved on one end of the heating tube body 4, which not only saves the number of accessories used, but also the aluminum electrode slurry only needs to be coated on one end of the heating tube body 4, thereby reducing the amount of aluminum electrode slurry used, thereby greatly reducing the production cost and price of the ceramic heating tube product, which is beneficial for enterprises to promote ceramic heating tube products.

[0062] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A quick-install terminal block structure, comprising a ceramic terminal block, characterized in that: The ceramic terminal block further comprises a lead electrode terminal; the ceramic terminal block is provided with a first groove; the lead electrode terminal comprises a first contact piece, a second contact piece, an insert piece, and an electrode contact piece; the first contact piece contacts the side groove wall of the first groove, the upper end of the electrode contact piece is connected to the upper end of the first contact piece, and the electrode contact piece is arranged obliquely relative to the first contact piece; the second contact piece is provided at the lower end of the first contact piece, and the second contact piece contacts the bottom groove wall of the first groove; the upper end of the insert piece is connected to the second contact piece, and the insert piece passes through the bottom groove wall of the first groove and out of the ceramic terminal block; The ceramic terminal seat is a cylindrical ceramic terminal seat, and the first groove is a circular groove; there are two lead electrode terminals; The lead electrode terminal comprises at least two first contact pieces and two electrode contact pieces; The upper end of the electrode contact piece is bent toward the first contact piece to form a guide surface; the electrode contact piece is provided with a dividing hole; The side groove wall of the first groove is further provided with a limiting groove, and the first contact piece is located in the limiting groove; The limiting groove is provided with a step, and the upper portion of the first contact piece contacts the wall of the limiting groove above the step; A vertical recess is provided on the vertical step surface of the step.

2. The quick-install terminal block structure according to claim 1, characterized in that: Wing parts are provided on both sides of the ceramic terminal seat; a second groove is provided on the wing part, and a screw hole is opened on the bottom groove wall of the second groove.

3. A ceramic heating tube, characterized in that: It comprises a heating tube body and the quick-install terminal seat structure according to any one of claims 1 to 2; an aluminum electrode layer is provided at the end of the heating tube body along the tube wall of the heating tube body; a heating layer is provided on the heating tube body in series with the aluminum electrode layer, the ceramic terminal seat is sleeved on the end of the heating tube body, the electrode contact piece is clamped with the tube wall of the heating tube body, and the electrode contact piece is in contact with the aluminum electrode layer.

4. The ceramic heating tube according to claim 3, characterized in that: The ceramic terminal seat is sleeved on one end portion of the heating tube body.

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