CN205946208U - Utensil dual layer protection's electric heater unit - Google Patents
Utensil dual layer protection's electric heater unit Download PDFInfo
- Publication number
- CN205946208U CN205946208U CN201620928386.7U CN201620928386U CN205946208U CN 205946208 U CN205946208 U CN 205946208U CN 201620928386 U CN201620928386 U CN 201620928386U CN 205946208 U CN205946208 U CN 205946208U
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- electric heater
- heater unit
- chamber
- metal tube
- heating
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Abstract
The utility model discloses an utensil dual layer protection's electric heater unit, include tubular metal resonator, electric heating element, the control by temperature change protector and the thermal fuse ware of drawing the subassembly, being connected, a first cavity and a second cavity are decide to the axial upper bound in the tubular metal resonator, electric heating element sets up in the first cavity, it is in to draw the subassembly setting first cavity corresponds the first of tubular metal resonator is served, and with electric heating element connects, control by temperature change protector and thermal fuse ware set up in the second cavity, and with electric heating element connects. The utility model discloses an utensil dual layer protection's electric heater unit through the setting of control by temperature change protector and thermal fuse ware, plays the dual layer protection effect to electric heater unit. When the control by temperature change protector became invalid, through thermal fuse ware deenergization, stop electrically conductive heating, prevent that electric heater unit from burning out, protect the safety of lives and properties.
Description
Technical field
This utility model is related to electric heating equipment technical field, the more particularly, to a kind of electric heater unit of tool double shielding.
Background technology
Electric heater unit, is a kind of heating equipment being changed into heat energy by electric energy, and its transformation efficiency is high, heat-energy losses are low, is
The heating equipment that a kind of long-life international popular of high-quality uses.Electric heater unit mainly passes through flowing or stationary gas, stream
Dynamic or inactive liquid is that heating medium carries out being incubated, rises mild heat, its operation principle be consume electric energy be converted into heat energy come right
The object that need to heat is heated, and cryogen medium enters its input port, edge under pressure by pipeline at work
The internal specific heat exchange runner of electric-heating container, take away produced high temperature heat amount in heating work, make heated Jie
Matter temperature raises.
It is mounted with temperature-control protector, the temperature control when heating environment dehydration, heating overtemperature in existing electric heater unit
Protector disconnects and heating and heating equipment is played a protective role；When temperature falls after rise to a certain extent, temperature-control protector
Automatically reset.But, once temperature-control protector lost efficacy, heating temperature continues to rise, and electric heater unit can be caused to burn out, very
To the danger that also can bring lives and properties.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of electrical heating using safer tool double shielding
Device.
This utility model solves its technical problem and be employed technical scheme comprise that：A kind of electrical heating of tool double shielding is provided
Device, including metal tube, heating, the temperature-control protector drawn assembly, be connected and thermal cut-off；In described metal tube
One first chamber and a second chamber are defined on axial direction, described heating is arranged in described first chamber, described
Draw assembly to be arranged in the first end of the corresponding described metal tube of described first chamber, and be connected with described heating；Institute
State temperature-control protector and thermal cut-off is arranged in described second chamber, and be connected with described heating.
Preferably, described extraction assembly includes eduction rod and lug plate；Described metal tube is stretched in one end of described eduction rod
First chamber in, be connected with described heating；The other end of described eduction rod is located at outside described metal tube, described lug plate
It is connected on this other end of described eduction rod.
Preferably, described heating includes two parallel described heating wire；Described extraction assembly includes two institutes
State eduction rod, the described lug plate being connected on two described eduction rods；Two described eduction rods are parallel and exhausted each other
Edge, and connect a described heating wire respectively；
Described temperature-control protector and thermal cut-off connect two described heating wire in a series arrangement.
Preferably, the insulation that described electric heater unit also includes being arranged between described first chamber and second chamber every
Part；Described temperature-control protector and thermal cut-off away from connection end pass through described insulated spacers to connect described heating wire.
Preferably, described electric heater unit also includes the connecting rod being connected on two described heating wire ends, and two
Heating wire described in root connects the connection end of described temperature-control protector and thermal cut-off respectively by described connecting rod.
Preferably, described electric heater unit also includes the insulated end cover being connected on described metal tube first end port；Institute
The one end stating eduction rod passes through described insulated end cover to be located at outside described metal tube.
Preferably, it is additionally provided between described insulated end cover and the described port of described metal tube and be tightly connected layer.
Preferably, described electric heater unit also includes the insulation sleeve being arranged in described second chamber, described insulation sleeve set
It is located at described temperature-control protector and the periphery of thermal cut-off.
Preferably, the described metal tube periphery between described first chamber and second chamber is provided with annular groove.
Preferably, described electric heater unit also includes the insulation fill stratum being filled in described first chamber.
The electric heater unit of tool of the present utility model double shielding, by the setting of temperature-control protector and thermal cut-off, right
Electric heater unit plays double shielding effect.When temperature-control protector lost efficacy, by thermal cut-off deenergization, stop conductive adding
Heat, prevents electric heater unit from burning out, the safety of protection lives and properties.
Brief description
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the cross-sectional view of the electric heater unit of tool double shielding of this utility model one embodiment；
Fig. 2 is the mplifying structure schematic diagram of part A in Fig. 1.
Specific embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, now comparison accompanying drawing is detailed
Specific embodiment of the present utility model is described.
As shown in figure 1, the electric heater unit of the tool double shielding of this utility model one embodiment, including metal tube 10, electricity
Thermal element 20, the temperature-control protector 40 drawn assembly 30, be connected and thermal cut-off 50.Wherein, metal tube 10 interior axle is upwards
Define a first chamber 11 and a second chamber 12, heating 20 is arranged in first chamber 11；Draw assembly 30
It is arranged in the first end of the corresponding metal tube 10 of first chamber 11, and be connected with heating 20；Heating 20 and extraction
Assembly 30 is also all insulated with metal tube 10.
Temperature-control protector 40 and thermal cut-off 50 are arranged in second chamber 12, and are connected with heating wire 21.When heating ring
When border dehydration, heating 20 overtemperature, temperature-control protector 40 disconnects the conducting of this electric heater unit and power supply, when temperature falls back to
When to a certain degree, temperature-control protector 40 automatically resets, thus playing a protective role to heating 20.When temperature-control protector 40 is lost
Effect, when temperature continues to rise as risen 40 DEG C～50 DEG C, thermal cut-off 50 disconnects, and cuts off the power supply of this electric heater unit, it is to avoid
Burn out.
Specifically, metal tube 10 is the body of hollow, and inner chamber defines first chamber 11 and second chamber 12 to hold respectively
Put the protection element such as heating 20 and temperature-control protector 50.The relative first end of metal tube 10 and the second end can open, respectively
Form ports having.The port of first end can be closed by drawing assembly 30 grade and connect power supply by connecting power line；Second end
Port can be closed by crown cap.Metal tube 10 can be stainless steel tube.
As shown in Figure 1, 2, metal tube 10 periphery between first chamber 11 and second chamber 12 is provided with annular groove 13.
Annular groove 13 can be recessed by metal tube 10 outer wall, thus orienting first chamber 11 and second chamber 12.
Draw assembly 30 and include eduction rod 31 and lug plate 32, all made using conductive material.One end of eduction rod 31 is stretched
Enter in the first chamber 11 of metal tube 10, be connected with heating 20.The other end of eduction rod 31 is located at outside metal tube 10, wiring
Piece 32 is connected on this other end of eduction rod 31.
In the present embodiment, heating 20 includes two parallel heating wire 21.Accordingly, draw assembly and include two
Eduction rod 31, the lug plate 32 being connected on two eduction rods 31；Two eduction rods 31 are parallel and insulated from each other, and
Connect a heating wire 21 respectively.
For realizing drawing the insulation between assembly 30 and metal tube 10, and two eduction rods 31 are insulated from each other, and this electricity adds
Thermal also includes the insulated end cover 60 being connected on metal tube 10 first end port, and one end of eduction rod 31 passes through insulated end cover
60 are located at outside metal tube 10.Insulated end cover 60 is provided with two through holes separately and passes through for two eduction rods 31.
Additionally, be additionally provided between the port of insulated end cover 60 and metal tube 10 being tightly connected layer 61.Insulated end cover 60 enters one
Step is tightly connected layer 61 by this and is tightly fixed on metal tube 10.It is tightly connected layer 61 to make by epoxy resin；Insulation
End cap 61 can be made using silica gel.Flange also can be provided with insulated end cover 61, be arranged on electric heating beneficial to by whole electric heater unit
On equipment etc..
Temperature-control protector 40 and thermal cut-off 50 connect two heating wire 21 in a series arrangement, thus can form one returning
Road.Specifically, a connection end of thermal cut-off 50 connects a heating wire 21, and another connection end can be protected with temperature control by copper strips 41
One connection end of shield device 40 connects, and another connection end of temperature-control protector 40 then can connect another heating wire by copper strips 42
21.
Further, electric heater unit also includes insulated spacers 70, its be arranged on first chamber 11 and second chamber 12 it
Between, thus this two chambers is separated.Temperature-control protector 40 and thermal cut-off 50 away from connection end pass through insulated spacers 70
Connect heating wire 21.
Insulated spacers 70 are preferably placed at the side of the corresponding second chamber 12 of annular groove 13, thus insulated spacers 70 can lead to
Cross the bottom surface that annular groove 13 concaves towards in metal tube 10 and be limited to second chamber 12 side.
It is that temperature-control protector 40 and thermal cut-off 50 are separated with metal tube 10, electric heater unit also includes being arranged on second
Insulation sleeve 80 in chamber 12.Insulation sleeve 80 is set in temperature-control protector 40 and the periphery of thermal cut-off 50.The opening of insulation sleeve 80
Mouth end can be fastened on insulated spacers 70.
Preferably, in the present embodiment, electric heater unit also includes the connection being connected on two heating wire 21 ends
Bar 22, two heating wire 21 connect the connection end of temperature-control protector 40 and thermal cut-off 50 respectively by connecting rod 22.
Further, the insulation fill stratum in first chamber 11 that this electric heater unit also includes be filled in metal tube 10
90.Eduction rod 31, heating 20 are coated in first chamber 11 by insulation fill stratum 90, by its with metal tube 10 every
Open.Additionally, insulation fill stratum 90 also can ensure that the depth of parallelism of two heating wire 21 and the interval of heating 20, it is to avoid between the two
Deforming contact.Insulation fill stratum 90 can be quartz sand layer or magnesium oxide bisque, preferably magnesium oxide bisque.
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model, every
The equivalent structure made using this utility model description and accompanying drawing content or equivalent flow conversion, or be directly or indirectly used in
Other related technical fields, are all included in the same manner in scope of patent protection of the present utility model.
Claims (10)
1. a kind of electric heater unit of tool double shielding is it is characterised in that including metal tube, heating, drawing assembly, be connected
The temperature-control protector connecing and thermal cut-off；Described metal tube interior axle defines a first chamber and second chamber upwards
Room, described heating is arranged in described first chamber, and it is corresponding described that described extraction assembly is arranged on described first chamber
In the first end of metal tube, and it is connected with described heating；Described temperature-control protector and thermal cut-off are arranged on described second
Within the chamber, and be connected with described heating.
2. electric heater unit according to claim 1 is it is characterised in that described extraction assembly includes eduction rod and wiring
Piece；One end of described eduction rod is stretched in the first chamber of described metal tube, is connected with described heating；Described eduction rod
The other end is located at outside described metal tube, and described lug plate is connected on this other end of described eduction rod.
3. electric heater unit according to claim 2 is it is characterised in that described heating includes two parallel institutes
State heating wire；The described wiring that described extraction assembly includes two described eduction rods, is connected on two described eduction rods
Piece；Two described eduction rods are parallel and insulated from each other, and connect a described heating wire respectively；
Described temperature-control protector and thermal cut-off connect two described heating wire in a series arrangement.
4. electric heater unit according to claim 3 it is characterised in that described electric heater unit also include being arranged on described
Insulated spacers between first chamber and second chamber；Described temperature-control protector and thermal cut-off away from connection end pass through institute
State insulated spacers and connect described heating wire.
5. electric heater unit according to claim 4 is it is characterised in that described electric heater unit also includes being connected to
Connecting rod on two described heating wire ends, two described heating wire connect described temperature control protection by described connecting rod respectively
Device and the connection end of thermal cut-off.
6. electric heater unit according to claim 2 it is characterised in that described electric heater unit also include being connected to described
Insulated end cover on metal tube first end port；One end of described eduction rod passes through described insulated end cover to be located at described metal tube
Outward.
7. electric heater unit according to claim 6 it is characterised in that described insulated end cover and described metal tube described
It is additionally provided between port and be tightly connected layer.
8. the electric heater unit according to any one of claim 1-7 is it is characterised in that described electric heater unit also includes setting
Put the insulation sleeve in described second chamber, described insulation sleeve is set in described temperature-control protector and the periphery of thermal cut-off.
9. the electric heater unit according to any one of claim 1-7 is it is characterised in that described first chamber and second chamber
Between described metal tube periphery be provided with annular groove.
10. the electric heater unit according to any one of claim 1-7 is it is characterised in that described electric heater unit also includes
It is filled in the insulation fill stratum in described first chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620928386.7U CN205946208U (en) | 2016-08-23 | 2016-08-23 | Utensil dual layer protection's electric heater unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620928386.7U CN205946208U (en) | 2016-08-23 | 2016-08-23 | Utensil dual layer protection's electric heater unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205946208U true CN205946208U (en) | 2017-02-08 |
Family
ID=57951457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620928386.7U Active CN205946208U (en) | 2016-08-23 | 2016-08-23 | Utensil dual layer protection's electric heater unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205946208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107889301A (en) * | 2017-12-15 | 2018-04-06 | 重庆方盛净化设备有限公司 | The vertical electric heating tube of double shielding pipe |
-
2016
- 2016-08-23 CN CN201620928386.7U patent/CN205946208U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107889301A (en) * | 2017-12-15 | 2018-04-06 | 重庆方盛净化设备有限公司 | The vertical electric heating tube of double shielding pipe |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |