CN109195238B

CN109195238B - High-strength pressure-resistant electric heater

Info

Publication number: CN109195238B
Application number: CN201811198789.0A
Authority: CN
Inventors: 陶美华
Original assignee: Jiangsu Dongfang Electric Heater Manufacturing Co ltd
Current assignee: Jiangsu Dongfang Electric Heater Manufacturing Co ltd
Priority date: 2018-10-15
Filing date: 2018-10-15
Publication date: 2021-04-27
Anticipated expiration: 2038-10-15
Also published as: CN109195238A

Abstract

The invention relates to the technical field of electric heaters, in particular to a high-strength pressure-resistant electric heater which comprises a base, a heating pipe, a plug, an insulating seat, a conductive block, a contact block, a spring, a guide pin and a connector, wherein vertical plates are arranged at two ends of the base; the conducting block is arranged in the insulating seat, and the plug is fixedly connected with the conducting block. The invention is provided with the conductive block, the contact block and the spring, when the heating pipe is subjected to transverse extrusion force, the spring can evade the transverse extrusion force, and the pressure resistance of the heating pipe is improved, meanwhile, the conductive block, the contact block and the spring are all made of conductive materials, so that the heating pipe is always electrically connected with the plug, the guide pin enables the heating pipe to be kept in a horizontal state, the heating pipe is prevented from rotating, and the fin, the positioning sleeve and the locking ring are arranged, when the heating pipe is subjected to longitudinal pressure, the locking ring can slide in the conical hole, so that the longitudinal pressure is eva.

Description

High-strength pressure-resistant electric heater

Technical Field

The invention relates to the technical field of electric heaters, in particular to a high-strength pressure-resistant electric heater.

Background

An electric heater is a popular electric heating device in the world. The device is used for heating, preserving heat and heating flowing liquid and gaseous media. When the heating medium passes through the heating cavity of the electric heater under the action of pressure, the fluid thermodynamic principle is adopted to uniformly take away huge heat generated in the working process of the electric heating element, so that the temperature of the heated medium meets the process requirements of users.

When an existing electric heater for an air conditioner is assembled or installed, the assembly is difficult due to errors in manufacturing, bending deformation of a heating pipe can be caused during assembly, and the heating pipe is easy to damage after a long time.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provide a high-strength pressure-resistant electric heater which can improve the pressure resistance and the heat dissipation of a heating pipe.

In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:

the utility model provides a high strength resistance to compression electric heater, includes base, heating pipe, plug, base length direction both ends respectively are equipped with the riser, the horizontal overlap joint of heating pipe is on two risers, the plug setting on the riser and with heating pipe electric connection, still include:

the insulating seat is connected to the vertical plate and horizontally penetrates through the vertical plate;

the conductive block is arranged in the insulating seat, a sliding groove which is used for the conductive block to freely slide and is in a blind hole form is formed in the corresponding insulating seat, and one end of the plug penetrates into the insulating seat and is fixedly connected with the conductive block;

the contact blocks are fixedly connected to two ends of the heating pipe, can freely pass through the sliding grooves, are made of conductive materials and are electrically connected with the heating pipe;

one end of the spring is fixedly connected with the conductive block, and the other end of the spring is fixedly connected with the contact block;

the guide pin vertically penetrates through the contact block and can freely slide, and a through hole for the guide pin to freely pass through is formed in the corresponding insulating seat;

the connector, the connector rigid coupling is at the uide pin both ends, and it is corresponding open on the insulator foot has the waist type hole that can freely pass through when supplying the connector horizontal migration.

Preferably, the distance between the contact block and the inner wall of the sliding groove on the insulating base is defined as d, and d is not less than 0.5 mm.

The heating pipe is characterized by further comprising at least one fin fixedly connected to the base, a positioning sleeve is arranged on the fin, a locking ring is coaxially arranged on the positioning sleeve, a tapered hole is coaxially arranged on the positioning sleeve, the circumferential outer wall of the locking ring is matched with the tapered hole, the heating pipe is inserted in the locking ring, and the locking ring is made of high-temperature-resistant elastic rubber.

Preferably, the locking ring is made of borosilicate rubber.

Preferably, the taper of the tapered hole is Morse No. 3 taper.

The invention has the beneficial effects that: because the heating pipe can be subjected to transverse extrusion force during assembly, the conductive block, the contact block and the spring are arranged, when the heating pipe is subjected to the transverse extrusion force, the spring can avoid the transverse extrusion force, the pressure resistance of the heating pipe is improved, meanwhile, the conductive block, the contact block and the spring are all made of conductive materials, the heating pipe is always electrically connected with the plug, the guide pin and the connector are arranged, the guide pin enables the heating pipe to be kept in a horizontal state, the heating pipe is prevented from rotating, the fin, the positioning sleeve and the locking ring are arranged, when the heating pipe is subjected to longitudinal pressure, the locking ring can slide in the conical hole, the longitudinal pressure is avoided, in addition, because the locking ring is made of high-temperature-resistant elastic rubber materials, the heating pipe is prevented from being damaged, a certain amount of thermal expansion and cold contraction can be, the explosion-proof performance of the heating pipe is improved, and meanwhile, the fin is arranged, so that the heat dissipation performance of the heating pipe is improved, the longitudinal pressure of a large area can be resisted, and the pressure resistance of the heating pipe is improved.

Drawings

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

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic perspective view of the positioning sleeve of the present invention;

FIG. 4 is a schematic perspective view of section A-A of FIG. 3;

in the drawings, the reference numerals denote the following components:

1-base, 2-heating pipe, 3-plug, 4-vertical plate, 5-insulating base, 6-conducting block, 7-contact block, 8-spring, 9-guide pin, 10-connector, 11-waist-shaped hole, 12-fin, 13-positioning sleeve, 14-locking ring, 15-sliding groove and 16-conical hole.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, 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, but not all 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.

As shown in fig. 1-4, a high-strength pressure-resistant electric heater includes a base 1, a heating pipe 2, and a plug 3, wherein two ends of the base 1 in the length direction are respectively provided with a vertical plate 4, the heating pipe 2 is horizontally lapped on the two vertical plates 4, the plug 3 is disposed on the vertical plate 4 and electrically connected to the heating pipe 2, and further includes:

the insulating base 5 is connected to the vertical plate 4 and horizontally penetrates through the vertical plate 4;

the conductive block 6 is arranged in the insulating seat 5, a sliding groove 15 which is used for the conductive block 6 to freely slide and is in a blind hole form is formed in the corresponding insulating seat 5, and one end of the plug 3 penetrates into the insulating seat 5 and is fixedly connected with the conductive block 6;

the contact blocks 7 are fixedly connected to two ends of the heating pipe 2, can freely pass through the sliding grooves 15, are made of conductive materials and are electrically connected with the heating pipe 2;

one end of the spring 8 is fixedly connected with the conductive block 6, and the other end of the spring 8 is fixedly connected with the contact block 7;

the guide pin 9 vertically penetrates through the contact block 7 and can freely slide, and a through hole for the guide pin 9 to freely pass through is formed in the corresponding insulating base 5;

the connector 10, the connector 10 rigid coupling is in the guide pin 9 both ends, and it has the waist type hole 11 that supplies connector 10 free pass through when horizontal migration to correspond to open on the insulator foot 5.

The distance between the contact block 7 and the inner wall of the sliding groove 15 on the insulating base 5 is defined as d, d is not less than 0.5mm, the size of d is set, when the heating pipe 2 is under pressure, sufficient avoiding space is given, and the compressive strength of the heating pipe 2 is increased.

The heating tube heating device is characterized by further comprising at least one fin 12 fixedly connected to the base 1, a positioning sleeve 13 is arranged on the fin 12, a locking ring 14 is coaxially arranged on the positioning sleeve 13, a tapered hole 16 is coaxially arranged on the positioning sleeve 13, the circumferential outer wall of the locking ring 14 is matched with the tapered hole 16, the heating tube 2 is inserted into the locking ring 14, and the locking ring 14 is made of high-temperature-resistant elastic rubber.

The locking ring 14 is made of borosilicate rubber, and has better high-temperature resistance.

The taper of the tapered hole 16 is Morse 3 taper, so that the sliding effect of the locking ring 14 on the tapered hole is better, and the resistance is small.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a high strength resistance to compression electric heater, includes base (1), heating pipe (2), plug (3), base (1) length direction both ends respectively are equipped with riser (4), heating pipe (2) horizontal overlap joint is on two risers (4), plug (3) set up on riser (4) and with heating pipe (2) electric connection, its characterized in that still includes:

the insulating base (5) is connected to the vertical plate (4) and horizontally penetrates through the vertical plate (4);

the conductive block (6) is arranged in the insulating seat (5), a sliding groove (15) which is used for the conductive block (6) to freely slide and is in a blind hole form is formed in the corresponding insulating seat (5), and one end of the plug (3) penetrates into the insulating seat (5) and is fixedly connected with the conductive block (6);

the contact blocks (7) are fixedly connected to two ends of the heating pipe (2), can freely pass through the sliding grooves (15), are made of conductive materials and are electrically connected with the heating pipe (2);

one end of the spring (8) is fixedly connected with the conductive block (6), and the other end of the spring (8) is fixedly connected with the contact block (7);

the guide pin (9) vertically penetrates through the contact block (7) and can freely slide, and a through hole for the guide pin (9) to freely pass through is formed in the corresponding insulating seat (5);

the connector (10) is fixedly connected to two ends of the guide pin (9), and a waist-shaped hole (11) through which the connector (10) can freely pass when the connector (10) horizontally moves is formed in the corresponding insulating seat (5);

at least one rigid coupling is in fin (12) on base (1), be provided with position sleeve (13) on fin (12), coaxial locking ring (14) that is equipped with on position sleeve (13), coaxial bell mouth (16) that is equipped with on position sleeve (13), locking ring (14) circumference outer wall and bell mouth (16) looks adaptation, heating pipe (2) cartridge is on locking ring (14), locking ring (14) are high temperature resistant elasticity rubber material.

2. A high-strength voltage-resistant type electric heater according to claim 1, wherein the distance d between said contact block (7) and the inner wall of said sliding groove (15) of said insulating base (5) is defined as d, d being not less than 0.5 mm.

3. A high strength pressure resistant electric heater according to claim 1, wherein the locking ring (14) is made of borosilicate rubber.

4. A high strength pressure resistant electric heater as claimed in claim 1, wherein the taper of the tapered hole (16) is morse No. 3 taper.