CN221098984U

CN221098984U - Air duct type electric heater with uniform heating

Info

Publication number: CN221098984U
Application number: CN202321822403.5U
Authority: CN
Inventors: 张怡峰
Original assignee: Jiangsu Kaibosi Explosion Proof Electric Heater Co ltd
Current assignee: Jiangsu Kaibosi Explosion Proof Electric Heater Co ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2024-06-07
Anticipated expiration: 2033-07-12

Abstract

The utility model discloses an air duct type electric heater with uniform heating, which comprises a junction box, wherein the junction box is installed and connected at the top end of a heater body, a plurality of electric heating pipes are installed at one row at the inner side of the heater body through a connecting component, so that the air flow can be uniformly heated when the air duct type electric heater is used, the heating efficiency is improved, the electric heating pipes are conveniently sleeved and fixed in sequence through one row of limiting through holes, then fixing bolts at two sides of a locking bearing plate are rotated, the fixing bolts are rotationally connected to the heater body, and when the electric heater is connected, the electric heating pipes are connected and fixed in a mode of bolt rotation, so that the installation is more convenient when the electric heater is used, and when the electric heater is used, the air entering from an air inlet can be uniformly heated through one row of electric heating pipes, the heating speed is high, and the heating efficiency is improved.

Description

Air duct type electric heater with uniform heating

Technical Field

The utility model relates to the technical field of electric heaters, in particular to an air duct type electric heater capable of uniformly heating.

Background

The electric heater is a device capable of converting electric energy into heat energy, and is used for heating, preserving heat and heating flowing liquid and gaseous media, when the heating media are sleeved in a heating cavity of the electric heater under the action of pressure, the heat generated by an electric heating element is taken away by adopting a fluid thermodynamic principle, so that the temperature of the heated media reaches the technological requirements of users, wherein the air duct electric heater is mainly used for heating air, drying powder, heat treatment, heating sulfur dioxide and the like, and is widely applied to various fields of chemical industry, grain drying, aerospace and the like.

The existing air duct type electric heater is slow in heating and poor in heating effect in the using process, can not heat the entering air comprehensively and uniformly, and lacks an impurity filtering structure, so that impurities such as external dust and mosquitoes can easily enter the heater to cause corrosion damage to a heating pipe in the using process, and the using problem is affected.

Disclosure of utility model

The utility model aims to provide an air duct type electric heater with uniform heating, which solves the problems that in the prior art, the conventional air duct type electric heater is slow in heating, poor in heating effect, incapable of comprehensively and uniformly heating the entering air and lacking in an impurity filtering structure, so that impurities such as external dust and mosquitoes easily enter the heater to cause corrosion damage to a heating pipe during use, and the use is influenced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a heating even air duct type electric heater, includes the terminal box, terminal box installation connection is on the top position of heater body, the left end outside of terminal box is provided with the cable and introduces the subassembly, the inboard of heater body is provided with electric heating pipe, electric heating pipe's top is located and is provided with coupling assembling on the heater body, the left end of heater body is provided with the air intake, the right-hand member of heater body is provided with the air outlet, the inboard of air outlet and air intake all is provided with filtering component, the bottom of heater body is provided with the stabilizer blade.

The connecting assembly comprises fixing bolts, limiting through holes, a bearing plate and rubber cushions, wherein the limiting through holes are formed in one row of equidistance at the upper end of the bearing plate, fixing bolts are arranged on two sides of the upper end of the bearing plate, the rubber cushions are arranged on the end face of the bottom end of the bearing plate, and the bearing plate is connected onto the heater body through the fixing bolts.

The cable introducing assembly comprises a hollow screw, a first nut, a sealing rubber sleeve and a second nut, wherein the first nut is arranged at the top end of the hollow screw, the second nut is arranged at the bottom end of the hollow screw, the sealing rubber sleeve is arranged on the periphery of the outer side of the hollow screw, and the hollow screw is connected to the junction box.

The connecting assembly and the heater body are connected and installed in a screw rotating mode, and the connecting assembly is connected to the top end of the heater body.

Wherein, heater body and stabilizer blade pass through welded mode connection installation, just the stabilizer blade is connected on the bottom position of heater body.

The filter assembly comprises a fixed frame, an anti-mosquito filter screen, a fixed base plate and mounting screws, wherein the fixed frame is arranged in the middle of the upper end of the fixed base plate, the anti-mosquito filter screen is arranged on the inner side of the fixed frame, the mounting screws are arranged on the fixed base plate and are connected onto the air outlet and the air inlet through the mounting screws in a circle on the outer side of the fixed frame.

The filter assemblies are arranged in two, and the filter assemblies are respectively connected to the upper end positions of the air outlet and the air inlet.

In summary, the beneficial effects of the utility model are as follows due to the adoption of the technology:

1. According to the utility model, the plurality of electric heating pipes are arranged on the inner side of the heater body in a row through the connecting component, so that the electric heating pipes can be uniformly heated for wind flow when the electric heating pipes are used, and when the connecting component is arranged, firstly, the electric heating pipes are conveniently sleeved and fixed in sequence through the limiting through holes on the upper end of the bearing plate in a row, then the fixing bolts on the two sides of the locking bearing plate are rotated to be rotationally connected to the heater body, and when the electric heating pipes are connected, the electric heating pipes are connected in a manner of rotating the bolts, so that the electric heating pipes are connected and installed in a manner of rotating the bolts, the electric heating pipes are more convenient to detach later, and when the electric heating pipes are used, the wind entering from the air inlet can be uniformly heated through the electric heating pipes in a row, and the heating speed is high, so that the heating efficiency is improved.

2. According to the utility model, through the structure of the filter assembly, the filter assembly is convenient to assemble and disassemble, the incoming wind current can be filtered for impurities during use, the mosquitoes can be prevented from entering the heater body, the electric heating pipe is prevented from being corroded and damaged by the impurities such as the mosquitoes, when the filter assembly is installed, firstly, the installation screw at the upper end of the fixed base plate is rotated to be rotationally connected to the air outlet and the air inlet, the filter assembly is connected and installed in a screw rotation mode, the filter assembly is more convenient to install, the follow-up convenient to detach and clean or replace the anti-mosquito filter screen, when the external shunt enters through the air inlet, the impurities in the wind can be filtered and intercepted through the anti-mosquito filter screen at the inner side of the fixed frame, the mosquitoes can be prevented from entering the heater body, and the electric heating pipe is prevented from being corroded and damaged by the impurities such as the mosquitoes.

Drawings

FIG. 1 is a schematic view of a sectional structure of an electric heater with uniform heating;

FIG. 2 is a schematic diagram of a connection assembly of an electric heater with uniform heating;

FIG. 3 is a schematic diagram of a cable lead-in assembly of an electric air duct heater for uniform heating according to the present utility model;

fig. 4 is a schematic structural diagram of a filtering component of an electric air duct heater with uniform heating according to the present utility model.

In the figure: 1. an air outlet; 2. a filter assembly; 21. a fixed frame; 22. an anti-mosquito filter screen; 23. fixing the substrate; 24. installing a screw; 3. an electric heating tube; 4. a connection assembly; 41. a fixing bolt; 42. limiting through holes; 43. a carrying plate; 44. a rubber cushion; 5. a junction box; 6. a cable lead-in assembly; 61. a hollow screw; 62. a first nut; 63. sealing the rubber sleeve; 64. a second nut; 7. a heater body; 8. an air inlet; 9. and (5) supporting legs.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

Example 1

Referring to fig. 1 and 2, an air duct type electric heater for uniform heating comprises a junction box 5, the junction box 5 is installed and connected at the top end position of a heater body 7, a cable lead-in component 6 is arranged at the outer side of the left end of the junction box 5, an electric heating tube 3 is arranged at the inner side of the heater body 7, a connecting component 4 is arranged at the top end of the electric heating tube 3 and positioned on the heater body 7, an air inlet 8 is arranged at the left end of the heater body 7, an air outlet 1 is arranged at the right end of the heater body 7, filtering components 2 are arranged at the inner sides of the air outlet 1 and the air inlet 8, a supporting leg 9 is arranged at the bottom end of the heater body 7, when in use, the heater body 7 can be supported and fixed through the supporting leg 9, and the cable lead-in component 6 at the left side of the junction box 5 is convenient to be connected with an external cable, when in connection, a first nut 62 is loosened, and then each cable is inserted into a hollow screw 61, then one end of the cable is connected with each terminal inside the junction box 5, then the first nut 62 is locked by rotating, so that the first nut 62 is screwed on the hollow screw 61, when the first nut 62 is locked by rotating, the first nut 62 is turned to the second nut 64, the first nut 62 and the second nut 64 are clamped on the side wall of the junction box 5, the upper end of the hollow screw 61 is sleeved with the sealing rubber sleeve 63, so that in the use process, the gap at the junction between the junction box 5 and the cable can be blocked, the sealing effect is achieved, external water flow is prevented from entering the junction box 5, in the use process, the electric heating pipes 3 can be fixed and limited in sequence through a row of equidistant limiting through holes 42 at the upper end of the bearing plate 43, the electric heating pipes 3 are fixed and limited with the inner side of the heater body 7 in a row, in this way, the wind that gets into from air intake 8 passes through one row of electric heating pipe 3, can evenly heat the wind of getting into, and the heating rate is fast, thereby improve heating efficiency, and the wind after the heating is discharged from air outlet 1, when outside wind gets into from air intake 8, can filter the interception through the impurity in the fixed frame 21 inboard anti-mosquito filter screen 22, and can also prevent that the mosquito from getting into, avoid impurity such as mosquito to get into in the heater body 7, cause electric heating pipe 3's corruption and damage, the same air outlet 1 also is equipped with anti-mosquito filter screen 22, and when changing clearance anti-mosquito filter screen 22, only need not hard up fixed substrate 23 outside one week's mounting screw 24, can dismantle anti-mosquito filter screen 22, it is very convenient to use.

According to the utility model, the connecting component 4 and the heater body 7 are connected and installed in a screw rotating mode, the connecting component 4 is connected to the top end position of the heater body 7, the connecting component 4 comprises the fixing bolt 41, the limiting through holes 42, the bearing plate 43 and the rubber cushion 44, the limiting through holes 42 are formed in the upper end of the bearing plate 43 in a row at equal intervals, the fixing bolts 41 are arranged on two sides of the upper end of the bearing plate 43, the rubber cushion 44 is arranged on the end face of the bottom end of the bearing plate 43, the bearing plate 43 is connected to the heater body 7 through the fixing bolts 41, when the connecting component 4 is installed, firstly, the electric heating pipes 3 are conveniently sleeved and fixed in sequence through the limiting through holes 42 in the upper end of the bearing plate 43, then the fixing bolts 41 on two sides of the bearing plate 43 are rotated to enable the connecting component to be connected to the heater body 7 in a rotating mode through the rubber cushion 44, the connecting component is more firm and difficult to loose, the connecting component is installed in a bolt rotating mode, the connecting component is convenient to install in the mounting mode, and the component is convenient to detach in the use, when the component is used, the electric heating pipes 3 are fixed to the inner side of the heater body 7 in a row, when the component is used, and the electric heating pipes 3 enter from 8, and the electric heating pipes can be heated through a row 3, and the electric heating pipes can be heated, and the air inlet and the heating efficiency can be heated.

In the utility model, the heater body 7 and the supporting legs 9 are connected and installed in a welding mode, and the supporting legs 9 are connected to the bottom end position of the heater body 7, so that the supporting legs 9 are connected and installed to the bottom end position of the heater body 7 in a welding mode during use, and the supporting legs are firmer and less prone to falling off when supporting the heater body 7.

Working principle: in use, the heater body 7 can be supported and fixed through the support legs 9, the cable lead-in assembly 6 at the left side of the junction box 5 is conveniently connected with an external cable, and when the connection is carried out, the first nut 62 is loosened, then each cable is inserted into the hollow screw 61, then one end of the cable is connected with each terminal inside the junction box 5, then the first nut 62 is locked in a rotating mode, so that the first nut 62 is screwed on the hollow screw 61, when the first nut 62 is locked in a rotating mode, the first nut 62 is turned to the second nut 64, the first nut 62 and the second nut 64 are clamped on the side wall of the junction box 5, and the upper end of the hollow screw 61 is sleeved with the sealing rubber sleeve 63, so that in the use process, a gap between the junction box 5 and the cable can be blocked, the sealing effect is achieved, external water flow is prevented from entering the junction box 5, and in the use process, the electric heating pipes 3 can be fixed and limited in sequence through the row of equidistant limiting through holes 42 at the upper end of the bearing plate 43, so that a plurality of electric heating pipes 3 are fixed and arranged on the inner side of the heater body 7, when the electric heating pipe is used, the wind entering from the air inlet 8 passes through the row of electric heating pipes 3, the entering wind can be uniformly heated, and the heating speed is high, thereby improving the heating efficiency, the heated wind is discharged from the air outlet 1, when the external wind enters from the air inlet 8, the impurity in the wind can be filtered and intercepted through the anti-mosquito filter screen 22 on the inner side of the fixed frame 21, the entering of the mosquito is prevented, the impurity such as the mosquito is prevented from entering the heater body 7, the corrosion and damage of the electric heating pipes 3 are caused, the anti-mosquito filter screen 22 is also arranged on the same air outlet 1, and when the anti-mosquito filter screen 22 is replaced and cleaned, the mounting screw 24 on the outer side of the fixed substrate 23 is only loosened for a circle, the mosquito-proof worm filter screen 22 can be disassembled, and the use is very convenient.

Example two

Referring to fig. 1 and 3, in the present embodiment, compared with the first embodiment, the cable lead-in assembly 6 includes a hollow screw 61, a first nut 62, a sealing rubber 63 and a second nut 64, the first nut 62 is disposed at the top end of the hollow screw 61, the second nut 64 is disposed at the bottom end of the hollow screw 61, the sealing rubber 63 is disposed at the outer periphery of the hollow screw 61, and the hollow screw 61 is connected to the junction box 5.

Working principle: when the cable lead-in assembly 6 is installed, first, the hollow screw 61 is inserted into the through hole at the side of the junction box 5, the second nut 64 is further screwed and screwed at the tail end of the hollow screw 61, the first nut 62 is screwed at the head end of the hollow screw 61, so that in use, the first nut 62 is locked to clamp the junction box 5 on the side wall, and in use, each cable is inserted into the hollow screw 61, then one end of the cable is connected with each terminal inside the junction box 5, then the first nut 62 is screwed and locked in a rotating manner, so that the first nut 62 is screwed on the hollow screw 61, when the first nut 62 is screwed and locked in a rotating manner, the first nut 62 is turned to the second nut 64, the first nut 62 and the second nut 64 are clamped on the side wall of the junction box 5, and the upper end of the hollow screw 61 is sleeved with the sealing rubber sleeve 63, so that in use, the gap at the junction box 5 and the cable junction can be sealed, and external water is prevented from entering the junction box 5.

Example III

Referring to fig. 1 and 4, in this embodiment, compared with the second embodiment, two filter assemblies 2 are provided, and the filter assemblies 2 are respectively connected to the upper end positions of the air outlet 1 and the air inlet 8, the filter assemblies 2 include a fixing frame 21, an anti-mosquito filter 22, a fixing substrate 23 and mounting screws 24, the middle of the upper end of the fixing substrate 23 is provided with the fixing frame 21, the inner side of the fixing frame 21 is provided with the anti-mosquito filter 22, a circle of the outer side of the fixing frame 21 is provided with the mounting screws 24 on the fixing substrate 23, and the fixing substrate 23 is connected to the air outlet 1 and the air inlet 8 through the mounting screws 24.

Working principle: when the filter assembly 2 is installed, firstly, the installation screw 24 at the upper end of the fixed substrate 23 is rotated to enable the fixed substrate to be rotationally connected to the air outlet 1 and the air inlet 8, so that the installation is realized in a screw rotation mode, the installation is more convenient, the follow-up convenient disassembly cleaning or the replacement of the anti-mosquito filter screen 22 is realized, when external shunting enters through the air inlet 8, impurities in wind can be filtered and intercepted through the anti-mosquito filter screen 22 at the inner side of the fixed frame 21, the entry of mosquitoes can be prevented, the entry of the impurities such as the mosquitoes into the heater body 7 is avoided, and the corrosion and the damage of the electric heating pipe 3 are caused.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The utility model provides a wind channel formula electric heater of heating uniformity, includes terminal box (5), its characterized in that: junction box (5) install and connect on the top position of heater body (7), the left end outside of junction box (5) is provided with cable and introduces subassembly (6), the inboard of heater body (7) is provided with electric heating pipe (3), the top of electric heating pipe (3) is located and is provided with coupling assembling (4) on heater body (7), the left end of heater body (7) is provided with air intake (8), the right-hand member of heater body (7) is provided with air outlet (1), the inboard of air outlet (1) and air intake (8) all is provided with filter element (2), the bottom of heater body (7) is provided with stabilizer blade (9).

2. The uniformly heated electric tunnel heater of claim 1 wherein: coupling assembling (4) are including fixing bolt (41), spacing through-hole (42), loading board (43) and rubber cushion (44), loading board (43) upper end one row equidistance is equipped with spacing through-hole (42), loading board (43) upper end both sides are provided with fixing bolt (41), loading board (43) bottom terminal surface is provided with rubber cushion (44), loading board (43) are connected on heater body (7) through fixing bolt (41).

3. The uniformly heated electric tunnel heater of claim 1 wherein: the cable introducing assembly (6) comprises a hollow screw (61), a first nut (62), a sealing rubber sleeve (63) and a second nut (64), wherein the first nut (62) is arranged at the top end of the hollow screw (61), the second nut (64) is arranged at the bottom end of the hollow screw (61), the sealing rubber sleeve (63) is arranged on the outer periphery of the hollow screw (61), and the hollow screw (61) is connected to the junction box (5).

4. The uniformly heated electric tunnel heater of claim 1 wherein: the connecting component (4) and the heater body (7) are connected and installed in a screw rotation mode, and the connecting component (4) is connected to the top end position of the heater body (7).

5. The uniformly heated electric tunnel heater of claim 1 wherein: the heater body (7) and the supporting legs (9) are connected and installed in a welding mode, and the supporting legs (9) are connected to the bottom end position of the heater body (7).

6. The uniformly heated electric tunnel heater of claim 1 wherein: the filter assembly (2) comprises a fixed frame (21), an anti-mosquito filter screen (22), a fixed base plate (23) and mounting screws (24), wherein the fixed frame (21) is arranged in the middle of the upper end of the fixed base plate (23), the anti-mosquito filter screen (22) is arranged on the inner side of the fixed frame (21), the mounting screws (24) are arranged on the fixed base plate (23) in a circle on the outer side of the fixed frame (21), and the fixed base plate (23) is connected to the air outlet (1) and the air inlet (8) through the mounting screws (24).

7. The uniformly heated electric tunnel heater of claim 1 wherein: the two filter assemblies (2) are arranged in total, and the filter assemblies (2) are respectively connected to the upper end positions of the air outlet (1) and the air inlet (8).