CN208365830U - A kind of electric heater - Google Patents

Abstract

The utility model discloses a kind of electric heaters, belong to component of machine field, including heater, temperature element, feed opening, heating element, binding post, junction box, flange, generate heat casing and feed opening, the both ends design of the heater has flange, junction box is provided with outside the flange, junction box's interior design has a circle binding post, heating element is connected in the binding post, the heating element is led directly in fever inside pipe casing, there are two feed openings for the upper end both sides setting of the heater, temperature element is provided among described two feed openings, it is directly contacted in heating cavities with heated medium inside its straight flow heater, the heater lower end is provided with feed opening, the heater uses front and back symmetrical structure, its outer wall has been embedded in both ends lead heating element, each element is straight, it can be from heating sleeve It extracts out, avoid damaging and is threaded on flange in pipe, substantially increase leakproofness, avoid that explosion danger occurs.

Description

A kind of electric heater

Technical field

The utility model relates to component of machine field, specially a kind of electric heater.

Background technique

Electric heating is a kind of electric heating equipment of international popular.Heating, guarantor for liquid, gaseous medium to flowing Temperature, heating.When heat medium passes through electric heater heating chamber under pressure, equably taken away using thermodynamic fluid principle Generated huge heat in heating element work makes heated medium temperature reach the requirement of user's technique.Electric heater be by Electric energy is converted to the process of thermal energy.After fuel factor can occur for discovery power supply by conducting wire, in the world with regard to many inventions Family engages in the research and manufacture of various electric heating appliances.And heating element is curved arrangement in traditional heater, it is easily damaged And bad replacement；And its leakproofness is not strong, is unfavorable for the accuracy of thermometric.

Utility model content

The purpose of this utility model is to provide a kind of electric heaters, to solve the problem in above-mentioned background.

To solve above-mentioned purpose, the utility model is provided the following technical solutions: a kind of electric heater, including heater, survey Warm element, feed opening, heating element, binding post, junction box, flange, fever casing and feed opening, the both ends of the heater are set In respect of flange, it is provided with junction box outside the flange, junction box's interior design has a circle binding post, in the binding post Heating element is connected, the heating element is led directly in fever inside pipe casing, and there are two add for the upper end both sides setting of the heater Material mouth is provided with temperature element among described two feed openings, inside straight flow heater in heating cavities and heated medium It directly contacts, the heater lower end is provided with feed opening.

Furthermore, the heater uses front and back symmetrical structure, and outer wall has been embedded in both ends lead heating element, Each element is straight, after the junction box by opening both ends, can extract out from fever casing, avoid curved weakness Point.

Furthermore, the outer end of the heating element is threaded on flange by screw-threaded coupling cutting ferrule, and is heated Element is switched on the binding post in junction box straight through flange face so that temperature element directly with north side heat transfer medium contacts, Substantially increase temperature measurement accuracy.

Furthermore, using the heat transfer medium of flange seal in the heater body cavity, and it is straight with fever casing It connects, so that leakproofness is reinforced in managing, effectively improves temperature measurement accuracy.

Compared with prior art, the utility model has the beneficial effects that

(1) electric heater uses both ends lead heating element, can be from hair after the junction box by opening both ends It is extracted out in thermal sleeve, avoids curved weak spot, effectively extend the service life of heater；

(2) each element of the heater is straight, not only makes the heat exchange area of heater big, is heated evenly, and The substance for avoiding easy coking is directly contacted with heat source, to explode；

(3) outer end of the electric heater is threaded on flange by screw-threaded coupling cutting ferrule, so that temperature element is direct With north side heat transfer medium contacts, temperature measurement accuracy is substantially increased；

(4) using the heat transfer medium of flange seal in the electric heater internal cavities, and with the fever casing directly company of contact It connects, so that leakproofness is reinforced in managing, effectively improves temperature measurement accuracy.

Detailed description of the invention

Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.

Fig. 1 is the system structure diagram of the utility model electric heater；

Fig. 2 is the transverse sectional view of the utility model electric heater；

Fig. 3 is junction box's partial cutaway schematic of the utility model electric heater.

In figure: 1- heater, 2- temperature element, 3- feed opening, 4- heating element, 5- binding post, 6- junction box, 7- method Blue, 8- fever casing, 9- feed opening.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

Fig. 1-Fig. 3 is please referred to, the utility model provides the following technical solutions: a kind of electric heater, including heater 1, survey Warm element 2, feed opening 3, heating element 4, binding post 5, junction box 6, flange 7, fever casing 8 and feed opening 9, the heater 1 both ends design has flange 7, junction box 6 is provided with outside the flange 7,6 interior design of junction box has a circle binding post 5, connect heating element 4 in the binding post 5, the heating element 4 is led directly to inside fever casing 8, the heater 1 it is upper It holds both sides setting there are two feed opening 3, is provided with temperature element 2 among described two feed openings 3, inside straight flow heater 1 It is directly contacted in heating cavities with heated medium, 1 lower end of heater is provided with feed opening 9, before the heater 1 uses Symmetrical structure afterwards, outer wall has been embedded in both ends lead heating element 4, and each element is straight, by opening connecing for both ends After line case, it can be extracted out from fever casing, avoid curved weak spot, the outer end of the heating element 4 passes through screw fastening Tight cutting ferrule is threaded on flange 7, and heating element 4 is switched on the binding post 5 in junction box 6 straight through 7 face of flange, is made Temperature element is obtained directly with north side heat transfer medium contacts, is substantially increased temperature measurement accuracy, is used in 1 internal cavities of heater The heat transfer medium that flange 7 seals, and directly connected with fever casing 8, so that leakproofness is reinforced in managing, effectively improve thermometric Precision.

Working principle: in electric heater work, heated material is added to heater from feed inlet 3 above first In 1 internal cavities, then circuit is switched on both ends binding post 5, gives 1 electrified regulation of electric heater, it is direct by temperature element 2 Measured medium is contacted, control and display real time temperature unload heated material from feed opening 9 when reaching preset temperature；When Heating element 4 be more than the service life or damage when, the junction box 6 at both ends can be opened, then by heating element 4 from fever casing 8 Middle extraction avoids the weak spot of bending damage, effectively extends the service life.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein, and should not treat any reference in the claims as limiting Related claim.

Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims (4)

1. a kind of electric heater, including heater (1), temperature element (2), feed opening (3), heating element (4), binding post (5), Junction box (6), flange (7), fever casing (8) and feed opening (9), it is characterised in that: the both ends design of the heater (1) has Flange (7), the flange (7) is external to be provided with junction box (6), and junction box (6) interior design has a circle binding post (5), Heating element (4) are connected in the binding post (5), the heating element (4) leads directly to, the heating internal in fever casing (8) There are two feed opening (3), described two feed openings (3) are intermediate to be provided with temperature element (2) for the upper end both sides setting of device (1), It is directly contacted in the internal heating cavities of straight flow heater (1) with heated medium, heater (1) lower end is provided with feed opening (9).

2. a kind of electric heater according to claim 1, it is characterised in that: the heater (1) uses front and back symmetrical junction Structure, outer wall has been embedded in both ends lead heating element (4), and each element is straight.

3. a kind of electric heater according to claim 1, it is characterised in that: the outer end of the heating element (4) passes through spiral shell Line locking clamp external threading is connected on flange (7), and heating element (4) is switched in junction box (6) straight through flange (7) face On binding post (5).

4. a kind of electric heater according to claim 1, it is characterised in that: used in heater (1) internal cavities The heat transfer medium of flange (7) sealing, and directly connected with fever casing (8).