CN108266887A - Electric heater - Google Patents
Electric heater Download PDFInfo
- Publication number
- CN108266887A CN108266887A CN201710228835.6A CN201710228835A CN108266887A CN 108266887 A CN108266887 A CN 108266887A CN 201710228835 A CN201710228835 A CN 201710228835A CN 108266887 A CN108266887 A CN 108266887A
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- China
- Prior art keywords
- heating tube
- electric heating
- fluid
- electric heater
- isolated part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/121—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using electric energy supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Air-Conditioning For Vehicles (AREA)
- Resistance Heating (AREA)
Abstract
The present invention discloses a kind of electric heater, and including electric heating tube, housing and installing plate, housing includes peripheral wall and isolated part, and isolated part is located on the inside of peripheral wall, and the peripheral wall of isolated part and housing is fixedly installed；Isolated part has the first side and the second side being oppositely arranged, and the first side has groove, and a part for electric heating tube is located at groove；The second side, installing plate and the peripheral wall positioned at housing between the two of isolated part are a part of wall portion to form fluid cavity, fluid cavity is located between heating tube chamber and installation cavity, fluid cavity is separated with heating tube chamber by isolated part, and fluid cavity is separated with installation cavity by installing plate；Electric heater includes stent and the Thermal Cutoffs with stent fixed setting, and stent fixes or contact setting with electric heating tube, and Thermal Cutoffs is connected with the circuit of electric heating tube.Safe, and the long working life of the electric heater.
Description
This application claims being submitted on December 30th, 2016, Patent Office of the People's Republic of China, application No. is 201611259684.2, inventions
The priority of the Chinese patent application of entitled " electric heater ", entire contents are hereby incorporated by reference in the application.
Technical field
The present invention relates to electric heater technical field, more particularly to a kind of electric heater.
Background technology
New-energy automobile is mostly heated using electrically heated mode to cockpit, to be consistent with zero-emission theory.
At present, electric heating tube is immersed directly in by a kind of electric heater generally used for metal tube electricity electric heater
In coolant, heating power.Although the thermal efficiency of metal tube electricity electric heater is high, heating is fast, usually also has in coolant
Ethylene glycol has faintly acid, has certain corrosivity to metal tube, there are security risks；Metal tube is in direct contact with coolant,
Once metal tube has crackle, then coolant can be allowed to charge, danger close；In addition, in the case of no coolant, electric heater is such as
Dried fruit burning can bring serious safety problem.
Therefore, a kind of safe electric heater how is designed, is that those skilled in the art need the skill solved at present
Art problem.
Invention content
The object of the present invention is to provide a kind of electric heater, the electric heater it is safe.
In order to solve the above technical problems, the present invention provides a kind of electric heater, including electric heating tube, housing and installing plate,
The housing includes housing peripheral wall and isolated part, and the isolated part is located on the inside of the housing peripheral wall, the isolated part
It is fixedly installed with the housing peripheral wall；The isolated part has the first side and the second side that are oppositely arranged, and described first
Side has groove, and the electric heating tube is at least partly located at groove；
The electric heater includes heating tube chamber, installation cavity and fluid cavity, the second side of the isolated part, the peace
Loading board and be at least part wall portion to form the fluid cavity positioned at the housing peripheral wall between the two, the fluid cavity position
Between the heating tube chamber and the installation cavity, the fluid cavity is separated with the heating tube chamber by the isolated part,
The fluid cavity is separated with the installation cavity by the installing plate；
The electric heater includes stent and the Thermal Cutoffs with stent fixed setting, the stent and the electricity
Setting is fixed or contacted to heating tube, and the stent is contacted with the electric heating tube, the Thermal Cutoffs and the electrical heating
The circuit series connection of pipe.
The electric heater that above-mentioned technical proposal provides is provided with housing, which has heating tube chamber, fluid cavity and installation
Chamber, fluid cavity are located between heating tube chamber and installation cavity, in this way, by the barrier of isolated part, electric heating tube will not with fluid
It is in direct contact, has evaded directly electric heating tube is inserted into caused by fluid in the prior art and leak electricity or the security risks such as be corroded,
Improve the safety and reliability of electric heater；In addition, being equipped with Thermal Cutoffs and stent in heating tube intracavitary, work as electrical heating
During device dry combustion method, the surface temperature meeting rapid increase of electric heating tube, heat is transferred to Thermal Cutoffs by stent from surface, works as temperature
After degree is more than the set temperature of Thermal Cutoffs, Thermal Cutoffs can fuse, and cut off circuit, prevent electric heater from causing because of dry combustion method
The safety accidents such as on fire, further improve the safety and reliability of electric heater.
Description of the drawings
Fig. 1 is the structure diagram of electric heater in first embodiment of the invention；
Fig. 2 removes the structure diagram after cover board above for electric heater shown in Fig. 1；
Fig. 3 is the structure diagram of the housing of electric heater in Fig. 1；
Fig. 4 is the structure diagram of another angle of the housing of electric heater in Fig. 1；
Fig. 5 is the cross section view of housing shown in Fig. 3；
Fig. 6 is the structure diagram of the electric heating tube of electric heater in specific embodiment；
The electric heating tube and the structure diagram after case frame assembling that Fig. 7 is first embodiment；
The positive and negative structure diagram of the installing plate of electric heater in specific embodiment is shown respectively in Fig. 8 and Fig. 9；
The installing plate and the structure diagram after case frame assembling that Figure 10 is first embodiment；
Figure 11 is the structure diagram of electric heater in second embodiment of the invention；
Figure 12 removes the structure diagram after the first cover board for electric heater shown in Figure 11；
Figure 13 is the structure diagram of the first shell of electric heater in Figure 11；
Figure 14 is the structure diagram of another angle of first shell of electric heater in Figure 11；
Figure 15 is the cross section view of first shell shown in Figure 13；
The electric heating tube and the structure diagram after first shell assembling that Figure 16 is second embodiment；
Figure 17 is the structure diagram of the second shell of electric heater in Figure 11；
Figure 18 is the structure diagram of another angle of the second shell of electric heater in Figure 11；
Figure 19 is the first shell of second embodiment and the assembling schematic diagram of second shell；
Figure 20 shows the anti-dry protection device of electric heater in specific embodiment；
Figure 21 is stent and the partial enlarged view of electric heating tube junction in Figure 20；
Figure 22 is the connection circuit diagram of electric heating tube and Thermal Cutoffs.
Reference sign：
Housing 1, case frame 11, isolated part 12, groove 121, cell wall 122, fin 123, reinforcing ribs 124 separate
Plate 125, the first side 126, the second side 127, side partition wall 13 hold partition wall 14, cover board 15, through hole 16, fluid inlet 17, stream
Body outlet 18；
Installing plate 2, protrusion 21, protrusion 22, boss 23, strip projected parts 24, protruding portion 241；
Fluid cavity 111；
Housing 1 ', first shell 11a, isolated part 12a, groove 121a, cell wall 122a, fin 123a, reinforcing ribs
124a, demarcation strip 125a, the first side 126a, the second side 127a, fixing groove 128a, the first cover board 15a, first through hole 16a,
Fluid inlet 17a, fluid outlet 18a, the first installation seat plate 19a；
Second shell 11b, the second cover board 15b, the second through-hole 16b, the second installation seat plate 19b, installing plate 2b, protrusion 21b,
Protrusion 22b, boss 23b, strip projected parts 24b, protruding portion 241b；
Sealing ring 100；First space 110a, second space 110b, fluid cavity 111a；
Electric heating tube 3, flat part 31, warping part 32, circuit control panel 4, IGBT 5, forceful electric power connector 6, light current connector 7, into
Mouth take over 8, discharge connection 9；
Stent 201, extension 2011, strip plate 2012, Thermal Cutoffs 202.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
It please refers to Fig.1 to Figure 10, Fig. 1 is the structure diagram of electric heater in first embodiment of the invention；Fig. 2 is Fig. 1
Shown electric heater removes the structure diagram after upper cover plate；Fig. 3 is the structure diagram of the housing of electric heater in Fig. 1；Fig. 4
Structure diagram for another angle of the housing of electric heater in Fig. 1；Fig. 5 is the cross section view of housing shown in Fig. 3；Figure
6 structure diagram for the electric heating tube of electric heater in specific embodiment；Fig. 7 is the electric heating tube and housing of first embodiment
Structure diagram after frame assembling；The positive and negative of the installing plate of electric heater in specific embodiment are shown respectively in Fig. 8 and Fig. 9
Structure diagram；The installing plate and the structure diagram after case frame assembling that Figure 10 is first embodiment.
In the present embodiment, electric heater includes housing 1 and installing plate 2；Wherein, housing 1 includes case frame 11, housing frame
Frame 11 includes peripheral wall and isolated part 12, and wherein peripheral wall and isolated part is wholely set, and isolated part 12 is located on the inside of peripheral wall, every
It is fixedly installed from the peripheral wall of component 12 and housing, isolated part 12 has the first side 126 and the second side being oppositely arranged
127, wherein, the first side 126 of isolated part 12 is equipped with groove 121, and at least part of electric heating tube 3 is located at groove.Electricity adds
Hot device further includes fluid inlet 17, fluid outlet 18 and fluid cavity 111, installing plate 2, isolated part 12 the second side 127 and
Peripheral wall positioned at case frame between the two is at least part wall portion to form fluid cavity 111.Fluid inlet 17, fluid go out
Mouth 18 is connected with fluid cavity 111.
In specific scheme, can two or more grooves 121 be set in the first side 126 of isolated part 12, more
Specifically, each groove 121 is arranged parallel to, it is illustrated that the first side 126 that scheme schematically illustrates isolated part 12 is set
There are three the structures of parallel groove 121, it will be understood that the number of practical further groove 121 can be set according to demand, for example can be set
It is set to four, five or more, it is not limited to example in figure.
Correspondingly, the second side 127 of isolated part 12 has the cell wall 122 to the protrusion setting of fluid cavity 111, that is,
It says, groove 121 is recessed by the first side 126 of isolated part 12 and is formed, while the part protrusion being recessed, in isolated part 12
Second side 127 forms cell wall 122.Specifically, cell wall 122 is two or more.
Installing plate 2 is located at the side where the second side 127 of isolated part 12, that is to say, that installing plate 2 and cell wall
122 homonymies, and installing plate 2 and the peripheral wall and/or isolated part of housing are fixedly installed；Obviously, installing plate 2 and isolated part 12
Between have certain distance, with ensure fluid cavity 111 have certain space.
Electric heater provided in this embodiment is provided with housing 1, and the first side of isolated part 12 opens up fluted 121,
To install electric heating tube 3, the second side side of isolated part 12 is provided with installing plate 2, installing plate 2, the isolation part
Part 12 and peripheral wall positioned at housing between the two are at least part wall portion to form fluid cavity 111, and are forming fluid cavity
Fluid inlet 17 and fluid outlet 18 are opened up on 111 peripheral wall；In this way, by the barrier of isolated part 12, electrical heating is avoided
Pipe 3 is in direct contact with fluid, evaded in the prior art by electric heating tube 3 be inserted directly into fluid caused by electric leakage or it is rotten
The security risks such as erosion improve the safety and reliability of electric heater；In addition, installation electricity is opened up in the side of isolated part 12
The groove 121 of heating tube 3, the cell wall 122 that 12 opposite side of isolated part is formed is a part of wall portion for forming fluid cavity 111, is made
The fluid that the heat that electric heating tube 3 generates is transmitted to by isolated part 12 in fluid cavity 111 is obtained, the thermal efficiency is high.
In specific scheme, electric heater further includes circuit control panel 4, which is installed on the outer of installing plate 2
Surface, the circuit control panel 4 with electric heating tube 3 for being electrically connected, so as to control the power on/off of electric heating tube 3.It needs exist for referring to
Go out, the inner surface of installing plate 2 refers to the side towards cell wall 122, and correspondingly, outer surface refers to one far from cell wall 122
Side.
In this way, after electric heating tube 3 is powered, the heat of generation is transferred to the fluid of fluid cavity 111 by cell wall 122.
After being set as above, which can be applied to new-energy automobile, wherein, circuit control panel 4 is specifically as follows
The circuit control panel of vehicle.
It is appreciated that by above-mentioned set-up mode, there is electric heater heating tube chamber (to be equipped with the chamber of electric heating tube 3
Body), fluid cavity and installation cavity (cavity for being equipped with circuit control panel 4), wherein fluid cavity be located at heating tube chamber and installation cavity it
Between, fluid cavity and heating tube chamber are separated by isolated part 12, and fluid cavity is separated with installation cavity by installing plate 2.Wherein, fluid
Chamber and heating tube chamber are separated by isolated part includes directly separation and indirect separation, i.e., including isolated part and fluid cavity and adds
There is the situation of other component between heat pipe chamber.
In specific scheme, isolated part 12 has through hole 16, which runs through the first side of isolated part 12
126 and second side 127 of portion, in this way, the conducting wire being connect with electric heating tube 3 can connect across through hole 16 with circuit control panel 4
It connects, facilitates wiring.
Specifically, reinforcing ribs 124 is provided on cell wall 122, reinforcing ribs 124 is longitudinally disposed along cell wall 122,
The setting of reinforcing ribs 124 helps to improve the intensity of cell wall 12；Specifically, fin 123, fin are provided on cell wall 122
123 being longitudinally arranged along cell wall 122, and fin 123 is distributed in the both sides of reinforcing ribs 124.
As above, on the one hand the setting of fin 123 and reinforcing ribs 124 contributes to the heat dissipation of electric heating tube 3, extend and use
Service life, on the other hand, fin 123 and reinforcing ribs 124 can also play the role of reinforcement, can improve the intensity of cell wall 122, this
Sample can by cell wall 122 itself set it is relatively thin, so as to reduce the heat transfer resistance of electric heating tube 3.
Please also refer to Fig. 6, in specific scheme, the cross-sectional shape of electric heating tube 3 and the cross-sectional shape of groove 121
It is adapted, in this way, after electric heating tube 3 is installed to groove 121, bottom surface and two surfaces can fit in groove well
121 internal face, contributes to heat transfer.In specific scheme, at least half and groove of the external surface area of electric heating tube 3
121 inner walls soldering setting, to ensure heat transfer efficiency, the heating properties of lifting electrical heating device.
Specifically, the outer tube of electric heating tube 3 is aluminum pipe, since the ductility of aluminium is preferable, so outer tube is set as aluminium
Pipe facilitates compacting to form the cross-sectional structure of needs, while evaded the problem of stress concentration caused by compacting.
Specifically, the both ends of electric heating tube 3 are slightly tilted to the opening direction of groove 121, can be managed together with reference to figure 7
Solution, the structure diagram after being assembled it illustrates electric heating tube 3 and case frame 11, more specifically, electric heating tube 3 has flat
Straight portion 31 and positioned at the warping part at both ends 32, flat part 31 contacts setting with groove 121, so set, facilitating electric heating tube 3
Both ends are connect with circuit associated components, in addition, the both ends of electric heating tube 3 tilt the tilting for helping to protect electric heating tube 3
The structure in portion 31 avoids destroying the structure of the warping part 32 of electric heating tube 3 in the fixation procedure of electric heating tube 3 and groove 121.
Wherein, electric heating tube 3 can be fixed in groove 121 by way of soldering, can also be bonded by other filler materials
Together or directly electric heating tube 3 together with 12 die casting of isolated part.
In specific scheme, the periphery of isolated part 12 extends to form side partition wall 13 to its 127 side of the second side
With end partition wall 14, the height of side partition wall 13 is less than and side partition wall 13 be in homonymy case frame 11 end face height, hold every
The height of the end face of case frame 11 that the height of wall 14 is less than and partition wall 14 is held to be in homonymy, first side of installing plate 2
Setting is contacted with side partition wall 13, end partition wall 14；Open box-like structure on figure at example is by 12, two side partition walls of isolated part
13 and two end partition walls 14 formed.
In specific scheme, aforementioned both sides partition wall 13 and both ends partition wall 14 it is highly consistent, and less than the housing frame of homonymy
The end face of frame 11, after installing plate 2 is fixed on both sides partition wall 13 and both ends partition wall 14, the first side of installing plate 2 and side partition wall 13,
The contact setting of partition wall 14 is held, and installing plate 2 is welded and fixed with case frame 11.
In this way, the setting of partition wall enables installing plate 2 to be fixed thereon, the convenient welding subsequently with case frame 11 is consolidated
It is fixed.Installing plate 2 is fixed by welding with case frame 11, on the one hand be may insure the leakproofness of fluid cavity 111, is prevented
Fluid leaks, the safety of lifting electrical heating device, and on the other hand, the mode of welding can reduce the quantity of parts, and installation is more
Convenient, production is easily quick.
In practice, it is preferable that two side partition walls 13 and two end partition walls 14 are close to the peripheral wall of housing, to efficiently use sky
Between.
In specific scheme, aforementioned through hole 16 is opened on one of two end partition walls 14, so that connection electrical heating
The conducting wire of pipe 3 and circuit control panel 4 passes through.Since circuit control panel 4 and electric heating tube 3 are located at the both sides of isolated part 12, institute
During with actual setting, which preferably opens up along the short transverse of case frame 11, easy to process, is also convenient for wearing for conducting wire
Enter；Certainly, it is also feasible that the center line of through hole 16 tilts appropriate angle compared with the short transverse of case frame 11.
During actual setting, because needing to open up through hole 16, to ensure hole size and product strength, the end of through hole 16 is opened up
Partition wall 14 has certain thickness, and the end partition wall 14 for not opening up hole than the other end is thick, has the tool of the end partition wall 14 of through hole 16
Body thickness can be set according to demand.
In specific scheme, the fluid inlet 17 and fluid outlet 18 of aforesaid fluid chamber 111 are located at the same of case frame 11
One side, fluid inlet 17, fluid outlet 18 run through the wall portion of case frame 11, and more specifically, fluid inlet 17, fluid go out
Mouth 18 is opened on the end partition wall 14 with through hole 16, and the end wall of the case frame 11 through homonymy.Certainly, by fluid into
It is also feasible that mouth 17 and fluid outlet 18, which are opened on other side walls of case frame 11,.
As shown in FIG., specifically, the entrance sleeve 8 connected with fluid inlet 17 can be fixed on case frame 11,
The discharge connection 9 connected with fluid outlet 18 is so that it is convenient to the connection of fluid import and export pipeline.
In specific scheme, for fluid is avoided directly to be flowed after entering fluid cavity 111 from fluid inlet 17 from fluid outlet 18
Go out, and do not heated fully, the case frame inner wall is fixedly installed demarcation strip 125, and the demarcation strip is by the fluid
Chamber is divided at least two points of chambers, the demarcation strip between the fluid inlet and the fluid outlet, the fluid into
The communication port that mouth, fluid outlet are set by the demarcation strip connects or the fluid inlet, fluid outlet are by described point
The communication port set between partition board and the case frame inner wall connects.
In specific scheme, demarcation strip 125 is additionally provided on a cell wall 122 positioned at medium position, the demarcation strip
Fluid cavity 111 is divided at least two points of chambers by 125, and two points of chambers are in one end far from fluid inlet 17, fluid outlet 18
Connection, it is clear that fluid inlet 17 and fluid outlet 18 should be positioned at the both sides of demarcation strip 125, and demarcation strip 125 is with having through hole
16 end partition wall 14 is fixedly installed, and is in contact with installing plate 2, is so just avoided that fluid stream soon flows out after entering.
During specific setting, demarcation strip 125 can not offset with the other end partition wall far from through hole 16, reserve between the two
There is certain distance, so that two points of chambers connect；Certainly, demarcation strip 125 can also offset with other end partition wall, on demarcation strip 125
Recirculation hole is processed, so that two points of chamber connections.
After being set as above, fluid flows after fluid inlet 17 enters fluid cavity 111, along the side-cavity to the other end,
Around being flowed again along another side-cavity to 18 direction of fluid outlet after demarcation strip 125, in this way, stream of the fluid in fluid cavity 111
Dynamic route approximate U shape has the time sufficient enough to be heated.Certainly, demarcation strip may be alternatively provided as multiple.
In specific scheme, electric heater includes forceful electric power connector 6 and light current connector 7, forceful electric power connector 6 and light current connector 7
In the both sides end wall of case frame 11；Wherein, the setting of forceful electric power connector 6 facilitate connection circuit control panel 4 and electric heating tube 3 it is strong
The access arrangement of electric lead, the setting of light current connector 7 can facilitate the circuit for needing the element for connecing light current to connect.
The both ends that forceful electric power connector 6 and light current connector 7 are arranged in case frame 11 can be to avoid the letter of forceful electric power influence light current
Number precision and control ability.
More specifically, forceful electric power connector 6 is arranged in case frame 11 on the end wall of through hole 16, in this way, more convenient
Conducting wire arrangement between circuit control panel 4 and electric heating tube 3, correspondingly, light current connector 7 is arranged on case frame 11 far from perforation
On the end wall in hole 16.
During actual setting, aforementioned case frame 11 is (including peripheral wall, isolated part 12, demarcation strip 125, partition wall and each fin
Deng) aluminium or aluminum alloy materials can be selected, it is formed by way of integrated die-casting, in this way, the volume of one side housing 1 can be with
Smaller is made, weight is lighter, and the groove 121 on another aspect isolated part 12 is shaped by die casting mode, often relatively cleaner,
Electric heating tube 3 can be brazed without cleaning, it can be ensured that brazing quality.
In addition, the heat-conducting effect of the aluminum casting of die casting is more preferable, it is more advantageous to reducing thermal resistance, so as to reduce electric heating tube 3
Operating temperature, and then extend its working life.
Wherein, installing plate towards the side of the isolated part be the first side, also referred to as inside, backwards to the isolation
The side of component is the second side, also referred to as outside.
Please also refer to Fig. 8-10, in specific scheme, the first side of installing plate 2 is provided with convex at marginal position
Portion 21 specifically, is equipped with protrusion 21 at the both ends of the first side of installing plate 2 and both sides, protrusion 21 adjacent to partition wall inner wall,
That is the protrusion 21 of the end of the first side of installing plate 2 is adjacent with end partition wall 14, protrusion 21 and 13 phase of side partition wall of side
Neighbour in this way, can play the role of positioning and guiding in welded and installed plate 2, prevents installing plate 2 from deviating, it is ensured that welding quality is protected
Demonstrate,prove the leakproofness of fluid cavity 111.
It is to be herein pointed out the effect of protrusion 21 is to position installing plate 2, so during setting, it is not required to
To be bonded with partition wall inner wall it is stuck, in practice, between protrusion 21 and partition wall keep certain interval (such as 0.1~1.5mm), this
On the one hand sample can ensure the positioning of installing plate 2, on the other hand will not improve the positioning assembly difficulty of installing plate 2 again.
On this basis, the second side of installing plate 2 is equipped with protrusion 22, protrusion 22 and protrusion 21 or the protrusion 21 extremely
Few a part of position is corresponding, and each protrusion 22 has the installing blind for extending to corresponding protrusion 21, these installing blinds are used to pacify
Fill circuit control panel 4.
In this way, the setting of protrusion 21 and protrusion 22 is to ensure that the installation space of the fastener of installation circuit control panel 4,
2 entirety of installing plate can be made relatively thin, weight is lighter.
In illustrated scheme, two protrusions 21, protrusion 22 are respectively equipped at the both ends of installing plate 2, both sides are respectively equipped with one
Protrusion 21, protrusion 22, and each protrusion 21, protrusion 22 are set as the cylinder that section is square.It is appreciated that during actual setting, it is convex
Portion 21, the number of protrusion 22 and shape can determine that the height of the two is determined according to installation requirements, Neng Gouman as needed
The installation requirements of sufficient circuit control panel 4 and the location requirement of installing plate 2.
It is of course also possible to the mode that installing plate 2 is fastened by bolts with side partition wall 13 and end partition wall 14 is fixed, in this way,
It to ensure the leakproofness of fluid cavity, needs to add washer between installing plate 2 and partition wall, in addition, since installing plate 2 is consolidated with partition wall
Fixed setting, so, side partition wall 13 and end partition wall 14 are required for certain thickness to ensure space is fixedly installed.
In specific scheme, the second side of installing plate 2 is additionally provided with the (insulated gates pair of IGBT 5 of installation circuit control panel 4
Bipolar transistor) boss 23, the first side of installing plate 2 is equipped at least one strip projected parts 24, strip projected parts 24 and boss
23 position corresponds to, and the structure of three strip projected parts 24 is schematically illustrated in figure, on the one hand the setting of strip projected parts 24 has
Help radiate, on the other hand the installation site of IGBT 5 can be strengthened.
More specifically, one of strip projected parts 24 are equipped with protruding portion 241, boss 23 is equipped with installing blind, the installation
Blind hole is corresponding at least part position of protruding portion 241 or protruding portion 241, and installing blind extends to corresponding protruding portion
241；Specifically, as upper illustrated in schemed, strip projected parts 24 have three, and protruding portion 241 is three, on boss 23 with protruding parts
Corresponding section setting is put there are three installing blind, three installing blinds on boss 23 are for installing IGBT 5.
Wherein, also aluminium can be selected in installing plate 2 or aluminum alloy materials are made.Certainly, housing 1 and installing plate 2 also can be selected
Other metal materials are made, but consider or preferred aluminum material from cost and heat conduction etc. are many-sided.
In addition, housing 1 further includes two cover boards 15, it is respectively fixedly disposed at the top and bottom end of case frame 11, two
Cover and case frame are a part of wall portion for surrounding electrical heating tube chamber and a part of wall portion for surrounding installation cavity, by circuit control
Making sheet 4 and electric heating tube 3 are enclosed in housing 1, water proof and dust proof.
1 and Figure 12 are please referred to Fig.1, Figure 11 is the structure diagram of electric heater in second embodiment of the invention；Figure 12 is
Electric heater shown in Figure 11 removes the structure diagram after the first cover board.
In the present embodiment, electric heater includes housing 1 ', which includes first shell 11a and second shell 11b, the
One housing 11a is assembled with second shell 11b phases, for example, the two can be fixed by fluid sealant or by the way that sealing ring is set to realize
It is fixed.Two case frames can be processed respectively, and difficulty of processing is low, and product quality is easy to ensure.
Please also refer to Figure 13 to Figure 15, Figure 13 is the structure diagram of the first shell of electric heater in Figure 11；Figure 14
The structure diagram of another angle of first shell for electric heater in Figure 11；Figure 15 is the cross section of first shell shown in Figure 13
Sectional view.
First shell 11a includes the first peripheral wall 112a and isolated part 12a, and isolated part 12a is located at the first peripheral wall 112a
Inside, isolated part 12a and the first peripheral wall 112a are fixedly installed, and isolated part 12a has the first side 126a being oppositely arranged
With the second side 127a, wherein, the first side 126a of isolated part 12a has groove 121a, 3 at least part position of electric heating tube
In groove 121a, the first side 126a of isolated part 12a and the first peripheral wall for formed the first space 110a (and can be referred to as plus
Heat pipe chamber) a part of wall portion；In specific scheme, can multiple grooves be set in the first side 126a of isolated part 12a
121a, and, each groove 121a is arranged parallel to, it is illustrated that scheme schematically illustrates the first side of isolated part 12a
There are three the structures of parallel groove 121a for 126a tools.
Correspondingly, the second side 127a of isolated part 12a has the cell wall 122a for forming each groove 121a, that is,
It saying, groove 121a is formed by the part recess of the first side 126a of isolated part 12a, while the part protrusion being recessed,
The second side 127a of isolated part 12a forms cell wall 122a.
Electric heating tube 3 is mounted in each groove 121a of isolated part 12a.Certainly, each groove is not limited to installation one
Root electric heating tube, please also refer to Figure 16, it illustrates the structure diagrams after electric heating tube and first shell assembling.
Wherein, the structure of electric heating tube 3 and consistent with aforementioned first embodiment with the cooperation of groove 121a etc., here no longer
It repeats.
Please also refer to Figure 17 and Figure 18, Figure 17 is the structure diagram of the second shell of electric heater in Figure 11；Figure 18
Structure diagram for another angle of the second shell of electric heater in Figure 11.
Second shell 11b includes the second peripheral wall 112b and installing plate 2b, and installing plate 2b includes the towards isolated part 12a
One side 25b and the second side 26b backwards to isolated part 12a, the second side 26b and second peripheral wall of the installing plate
112b is a part of wall portion for forming second space 110b (and can be referred to as installation cavity), the first side 25b of the installing plate,
The the second side 127a and a part of the first peripheral wall 112a and/or the second peripheral wall 112b of the isolated part 12a is shape
Into a part of wall portion of the fluid cavity, it will be understood that second shell 11b is similar to open box-like structure.
For convenience of description, hereafter sides of the first shell 11a with cell wall 122a is referred to as to push up, with groove 121a
Side is referred to as bottom, that is to say, that and the first side 126a of its isolated part 12a is bottom, and the second side 127a is top, under
The side of second shell 11b towards isolated part 12a are known as bottom by text, are known as pushing up backwards to the side of isolated part 12a, that is, its
The top of installing plate 2b is towards the side of second space 110b, and the bottom of installing plate 2b is towards the side of isolated part, institute
The first side for stating the direction isolated part of installing plate is bottom, is top backwards to the second side of the isolated part,
It should be appreciated that the restriction of the noun of locality does not form the restriction to protection domain.
Specifically, second shell 11b can be located at the top of first shell 11a, after the two assembling, the peace of second shell 11b
Loading board 2b can block the top end opening of first shell 11a, in this way, the installing plate 2b of second shell 11b, first shell 11a
Isolated part 12a and a part positioned at the first peripheral wall between the two, a part for the second peripheral wall is form closed receiving
A part of wall portion of chamber, the closed accommodating chamber are fluid cavity 111a, and case frame is opened on the peripheral wall for forming fluid cavity 111a
Go out 18a equipped with fluid inlet 17a and fluid, more specifically, the first side of the installing plate 2b of second shell 11b, first shell
The second side of the isolated part 12a of body 11a and positioned at first shell 11a between the two the first peripheral wall to form fluid
A part of wall portion of chamber 111a, fluid inlet 17a and fluid outlet 18a can be set on first shell 11a, and fluid inlet 17a
Run through the first peripheral wall with fluid outlet 18a.As other embodiment, a part for the fluid cavity is located at the first shell
Body, another part of the fluid cavity are located at the second shell, the second side of the isolated part, the of the installing plate
One side, first shell between isolated part and installing plate the first peripheral wall a part, positioned at isolated part and peace
A part for second peripheral wall of the second shell between loading board is to form a part of wall portion of the fluid cavity, fluid inlet 17a
First shell 11a can be set on, and fluid inlet 17a and fluid outlet 18a runs through the first peripheral wall with fluid outlet 18a.Certainly,
In the above embodiment, fluid inlet, fluid outlet may be alternatively located at second shell.
The second side of installing plate 2b, that is, the side far from isolated part 12a, are also equipped with the circuit control of vehicle
Making sheet 4, to be electrically connected with electric heating tube 3, so as to control the power on/off of electric heating tube 3.In this way, after electric heating tube 3 is powered, generate
Heat the fluid of fluid cavity 111a is transferred to by cell wall 122a.
After being set as above, it will be understood that the first space 110a of first shell 11a is isolated the top of component 12a separations
Practical space is fluid cavity 111a, and bottom space is heating tube chamber, and the second space 110b of second shell 11b practical is circuit control
The installation cavity of making sheet 4.Tube chamber, fluid cavity and installation cavity are heated, and fluid cavity is located between heating tube chamber and installation cavity, fluid cavity
Separated with installation cavity by installing plate 2b.
It is consistent with the principle of aforementioned first embodiment, with accommodating in the scheme which provides and by electric heating tube 3
The fluid cavity 111a partitions of fluid are opened, and electric heating tube 3 is avoided to be in direct contact with fluid, improve the safety of electric heater with can
By property；Meanwhile the groove 121a of installation electric heating tube 3 is processed on isolated part 12a, isolation is heated by heat transfer
The fluid of component 12a opposite sides, the thermal efficiency are high.
In specific scheme, the cell wall 122a of first shell 11a is provided with reinforcing ribs 124a, reinforcing ribs 124a along
Cell wall 122a's is longitudinally disposed, and the setting of reinforcing ribs 124a helps to improve the intensity of cell wall 122a；Specifically, in cell wall
Fin 123a is provided on 122a, fin 123a is longitudinally arranged along cell wall 122a's, and fin 123a is distributed in reinforcing ribs
The both sides of 124a.As above, on the one hand the setting of fin 123a and reinforcing ribs 124a contributes to the heat dissipation of electric heating tube 3, extend
Service life, on the other hand, fin 123a and reinforcing ribs 124a can also play the role of reinforcement, can improve cell wall 122a's
Intensity, cell wall 122a can be set in itself in this way it is relatively thin, so as to reduce the heat transfer resistance of electric heating tube 3.
In specific scheme, the fluid inlet 17a and fluid outlet 18a of aforesaid fluid chamber 111a are located at first shell 11a
Same side, fluid inlet 17a, fluid outlet 18a run through first shell 11a wall portion, to avoid fluid from fluid inlet
17a enters after fluid cavity 111a directly to flow out from fluid outlet 18a, and is not heated fully, case frame (such as first shell
Body) inner wall is fixedly installed demarcation strip 125a, and the fluid cavity is divided at least two points of chambers, the separation by the demarcation strip
Between the fluid inlet and the fluid outlet, the fluid inlet, fluid outlet are set plate by the demarcation strip
Communication port connection or the fluid inlet, fluid outlet by being set between the demarcation strip and the case frame inner wall
The communication port connection put.
In specific scheme, demarcation strip 125a, demarcation strip 125a are additionally provided on the cell wall 122a positioned at medium position
Fluid cavity 111a is divided at least two points of chambers, fluid inlet 17a, fluid outlet 18a are located at the both sides of demarcation strip 125a, and two
It is a to divide chamber in one end connection far from fluid inlet 17a, fluid outlet 18a.During specific setting, demarcation strip 125a can be with housing
There are gaps for frame inner wall, are reserved with certain distance between the two, so that two points of chambers connect；It certainly, also can be in demarcation strip
Recirculation hole is set on 125a, and each point of chamber is connected by recirculation hole.
After being set as above, fluid is after fluid inlet 17a enters fluid cavity 111a, along the side-cavity to other end stream
It is dynamic, around being flowed again along another side-cavity to fluid outlet 18a directions after demarcation strip 125a, in this way, fluid is in fluid cavity 111a
Interior glide path approximate U shape has the time sufficient enough to be heated.Certainly, demarcation strip may be alternatively provided as multiple.
One end of first shell 11a offers first through hole 16a, and first through hole 16a runs through the first of isolated part 12a
Side and the second side, one end of second shell 11b also offer the second through-hole 16b, and second through-hole 16b runs through installing plate 2b
The first side and the second side, first through hole 16a, the second through-hole 16b positions are corresponding and penetrate through, with electric heating tube 3 and electricity
The conducting wire that road control panel 4 is electrically connected passes through first through hole 16a and the second through-hole 16b.It should be appreciated that first through hole 16a, second are led to
The setting of hole 16b should not influence the leakproofness of fluid cavity 111a.
More specifically, first through hole 16a, the second through-hole 16b and fluid inlet 17a, fluid outlet 18a are located at housing 1 '
The same end.
In specific scheme, forceful electric power connector 6 and light current connector 7 are respectively arranged in the end walls of second shell 11b；Its
In, the setting of forceful electric power connector 6 facilitates the access arrangement of the forceful electric power conducting wire of connection circuit control panel 4 and electric heating tube 3, light current connector
7 setting can facilitate the circuit for needing the element for connecing light current to connect.
The both ends that forceful electric power connector 6 and light current connector 7 are arranged in second shell 11b can be to avoid the letter of forceful electric power influence light current
Number precision and control ability.
More specifically, forceful electric power connector 6 is arranged in second shell 11b on the end wall of the second through-hole 16b, in this way, more
The conducting wire between circuit control panel 4 and electric heating tube 3 is facilitated to arrange, correspondingly, it is remote that light current connector 7 is arranged on second shell 11b
On end wall from the second through-hole 16b.
Please also refer to Figure 19, Figure 19 is the first shell of second embodiment and the assembling schematic diagram of second shell.
In specific scheme, a part for the periphery of first shell 11a extends outward to form the first installation seat plate 19a, the
A part for the periphery of two housing 11b extends outward to form the second installation seat plate 19b, more specifically, the position of first shell 11a
It is thicker in the thickness of the peripheral wall of isolated part 12a top sides, and first shell 11a tops extend outward to form the first installation along peripheral wall
Two or more mounting holes are uniformly provided on seat board 19a, the first installation seat plate 19a；Correspondingly, the bottom end of second shell 11b
The second installation seat plate 19b, the second installation seat plate 19b is also extended outward to form along peripheral wall and is equipped with two or more and the first installation
The corresponding mounting hole of position of mounting hole of seat board 19a.
When first shell 11a and second shell 11b is assembled, second shell 11b is positioned over the top of first shell 11a, makes
First installation seat plate 19a and the second installation seat plate 19b positions correspond to, and make fastener through the corresponding mounting hole of the two, thus will
The two is fixed together.
To ensure the leakproofness of fluid cavity 111a, sealing ring is additionally provided between first shell 11a and second shell 11b
100。
Specifically, for convenience of the placement of sealing ring 100, first shell 11a is located at the first of the second sides of isolated part 12a
The thickness of peripheral wall is more than the thickness of the first peripheral wall positioned at the first sides of isolated part 12a, and it is close that first shell 11a offers installation
The notch of the fixing groove 128a of seal, fixing groove 128a are towards second shell 11b；Or second shell 11b is located at installing plate 2b
The thickness of second peripheral wall of two sides is more than the thickness of the second peripheral wall positioned at the second sides of installing plate 2b, and second shell 11b is opened
Fixing groove equipped with installation sealing ring, the notch of fixing groove is towards first shell.
In specific scheme, the bottom (i.e. towards the one side of cell wall 122a) of the installing plate 2b of second shell 11b is by near side (ns)
Protrusion 21b is provided at edge position, specifically, protrusion 21b is equipped at the both ends of installing plate 2b bottoms and both sides, in this way, working as
When second shell 11b is placed in first shell 11a tops, each protrusion 21b can with the internal face at the top of first shell 11a is neighbouring sets
It puts, in this way, the positioning and guiding that second shell 11b and first shell 11a is facilitated to install, prevents second shell 11b from deviating, to improve
Efficiency of assembling.
It is to be herein pointed out the effect of protrusion 21b is to carry out guide-localization to second shell 11b, so practical
During setting, do not need to be bonded with the inner wall of first shell 11a it is stuck, in practice, protrusion 21b and first shell 11a inner walls it
Between keep certain interval (such as 0.1~1.5mm).
On this basis, the top of installing plate 2b is equipped with protrusion 22b, protrusion 22b and each protrusion 21b or protrusion 21b extremely
Few a part of position is corresponding, and each protrusion 22b has the installing blind for extending to corresponding protrusion 21b, these installing blinds are used for
Circuit control panel 4 is installed.
In this way, the setting of protrusion 21b and protrusion 22b is to ensure that the installation of the fastener of installation circuit control panel 4 is empty
Between, installing plate 2b can be integrally made relatively thin, the weight for making second shell 11b is lighter.
In illustrated scheme, it is neighbouring that protrusion 21b, protrusion 21b are equipped at marginal position in the first side of installing plate 2b
The inner wall of first shell, the second side of installing plate 2b are provided with protrusion 22b, protrusion 22b and protrusion 21b or protrusion 21b extremely
Few a part of position is corresponding, and protrusion 21b, protrusion 22b can be rectangular cylinder.It is appreciated that during actual setting, protrusion
21b, the number of protrusion 22b and shape can determine that the height of the two is determined according to installation requirements as needed.
In addition, the boss 23b of the IGBT5 of installation circuit control panel 4, installing plate are additionally provided in the second side of installing plate 2b
The bottom of 2b is equipped at least part position of at least one strip projected parts 24b, strip projected parts 24b and boss 23b or boss 23b
It is corresponding, the structure of three strip projected parts 24b is schematically illustrated in figure, on the one hand the setting of strip projected parts 24b contributes to
Heat dissipation, on the other hand can strengthen the installation site of IGBT 5.
More specifically, one of strip projected parts 24b is equipped with protruding portion 241b, boss 23b is equipped with installing blind, and installation is blind
Hole is corresponding with protruding portion 241b positions, and installing blind all extends to corresponding protruding portion 241b；Specifically, such as institute's example on figure
Show, strip projected parts 24b has three, and protruding portion 241b is three, and protruding portion position corresponding section is provided with three on boss 23b
A installing blind, three installing blinds on boss 23b are for installing IGBT 5.
During actual setting, the forming of first shell 11a integrated die-castings, also integrated die-casting shapes second shell 11b, that is, described
First peripheral wall is wholely set with isolated part, and second peripheral wall is wholely set with installing plate, in this way, can make the body of housing 1 '
Product is made smaller, and weight is lighter, in addition, the groove 121a on isolated part 12a is shaped by die casting mode, it is often relatively more dry
Only, electric heating tube 3 can be brazed without cleaning, it can be ensured that brazing quality.
In addition, the heat-conducting effect of the aluminum casting of die casting is more preferable, it is more advantageous to reducing thermal resistance, so as to reduce electric heating tube 3
Operating temperature, and then extend its working life.
In addition, in the present embodiment, first shell 11a and second shell 11b are independent two components, can be according to respective
Effect played in electric heater carrys out chosen material, if fine aluminium material can be selected in first shell 11a, to ensure thermal conductivity, and second
Alloy material can be selected in housing 11b, to ensure the integral strength of housing 1 '.
Housing 1 ' further includes the first cover board 15a for blocking first shell 11a bottom openings and blocks at the top of second shell 11b
Second cover board 15b, the first cover board 15a of opening is at least part wall portion to form the first space, and the second cover board 15b is forms
At least part wall portion of second space, so circuit control panel 4 and electric heating tube 3 are enclosed in inside housing 1 ', waterproof
It is dust-proof.
There is also the need to explanations, and in above-mentioned second embodiment, the peripheral wall of fluid cavity 111a is formed in first shell
The inner peripheral portion of first shell 11a at the top of 11a, that is, isolated part 12a, the installing plate 2b of second shell 11b are equivalent to
The top blind flange of fluid cavity 111a.It is appreciated that during actual setting, also the peripheral wall of fluid cavity can be formed in second shell, this
Sample, installing plate are set to all pars intramuralis of second shell, and the space that second shell peripheral wall is enclosed is divided into two parts,
In, the peripheral wall positioned at the second shell of installing plate bottom side is the peripheral wall of fluid cavity, correspondingly, isolated part is set on first shell
The top of body or inside first shell, during assembling, isolated part is used to block the bottom end opening of second shell, that is, every
From the bottom cover plate that component is equivalent to fluid cavity.
On the basis of the basic structure of both of the aforesaid embodiment, its structure can be also further improved, electric heater is avoided to do
It burns, to improve the safety and reliability of electric heater.
0 and Figure 21 are please referred to Fig.2, Figure 20 shows the anti-dry protection device of electric heater in specific embodiment, Figure 21
For stent in Figure 20 and the partial enlarged view of electric heating tube junction.
It should be pointed out that the electric heater for providing anti-dry protection device set on aforementioned first embodiment in Figure 20
On, it should be understood that the anti-dry protection device can also be used in second embodiment.
In the present embodiment, electric heater includes anti-dry protection device, and anti-dry protection device includes stent 201 and temperature
Fuse 202, Thermal Cutoffs 202 are fixedly installed with stent 201, which contacts with the electric heating tube 3 in groove 121,
And stent 201 is fixedly installed or contacts setting with electric heating tube 3, and specifically, the circuit of Thermal Cutoffs 202 and electric heating tube 3
Series connection.Specifically, stent can be fixed with electric heating tube 3 by welding, more specifically, the mode of soldering, pricker can be used
The deformation of weldering is small, can avoid impacting electric heating tube 3 in welding process.It should be pointed out that stent 201 is with having groove
121 isolated part 12 should be at non-contacting state, and the temperature of isolated part 12 is avoided to impact it.Herein,
Contact setting includes being in direct contact and mediate contact.
When there is no fluid in fluid cavity, that is, when electric heater is in dry combustion method operating mode, the surface temperature of electric heating tube 3
Can rapid increase, since stent 201 is contacted with the surface of electric heater 3, so the heat of electric heating tube 3 can be passed through stent 201
Thermal Cutoffs 202 is handed to, after temperature is more than the set temperature of Thermal Cutoffs 202, Thermal Cutoffs 202 can be blown,
So as to cut off the connection of the circuit of electric heating tube 3, electric heater other safety accidents of grade on fire caused by dry combustion method are prevented.
In specific scheme, groove for two and more than, electric heating tube for two and more than, each groove is provided at least
A piece electric heating tube, stent 201 include 2012 and at least two extension 2011 of strip plate, strip plate 2012 and two extensions
2011 are in contact or are structure as a whole, and an electric heating tube of one of extension 2011 and relatively close housing peripheral wall connects
It touches, another extension 2011 is contacted with another electric heating tube of relatively close housing peripheral wall.With three shown in Figure 20
For electric heating tube 3, the extension 2011 at 201 both ends of stent contacts respectively with the electric heating tube of both sides 3, strip plate 2012 across
Electric heating tube 3.
In this way, when in dry combustion method operating mode, temperature is transmitted simultaneously from the both ends of stent 201, and temperature rise faster, can subtract
The time of few dry combustion method operating mode, further ensure that safety.
More specifically, being longitudinally arranged perpendicular to electric heating tube 3 of stent 201, in this way, the length of stent 201 is shorter, one
Aspect can save material, on the other hand heat can be made to be transferred to Thermal Cutoffs 202 quickly.
Specifically, extension 2011 adjacent to electric heating tube 3 end set, stent 201 be metallic support, extension 2011
Connect electric heating tube 3 and strip plate 2012, extension 2011 is fixedly installed with electric heating tube 3 or extension 2011 and isolation part
Part is fixedly installed.In this way, guide the heat of electric heating tube to strip plate by extension, and and then pass to Temperature protection
Silk, helps that the temperature of electric heating tube 3 accurately is passed to Thermal Cutoffs 202.Extension 2011 is exemplified in figure to be located at
It is fixedly installed between electric heating tube 3 and strip plate 2012 and with electric heating tube 3.In this way, extension 2011 is located at electric heating tube 3
Upper surface, extension 2011 are contacted with the upper surface of electric heating tube 3, help accurately to pass to the temperature of electric heating tube 3
Thermal Cutoffs 202.
More specifically, stent 201 contacts and stent 201 and flat part with the flat part 31 of at least two electric heating tubes 3
The position of contact is fixedly installed adjacent to the warping part of electric heating tube 3 32, Thermal Cutoffs 202 with strip plate, and specifically, temperature is protected
Dangerous silk 202 is fixedly installed on the middle part of stent 201.It is appreciated that Thermal Cutoffs 202 is only connect by connector and stent 201
It touches, main body is hanging.Wherein connector, stent etc. are metal heat-conducting piece.
In further embodiment, electric heating tube 3 is string configuration, and concrete shape is rodlike, stick-like or other.Anti-dry
Protective device includes two pack supports 201 and Thermal Cutoffs 202, and stent 201 is two, and one in two stents 201 is neighbouring
One end of electric heating tube 3 is set, another in two stents 201 is set adjacent to the other end of electric heating tube 3.
In this way, the quadrangle of electric heater can transmit temperature to Thermal Cutoffs 202, when be limited to installation space or
When vehicle is in special state, electric heater may be in non-level position, high there are one end, the low situation in one end,
And quadrangle is in different height, in this case, if the liquid level of fluid is inadequate, then positioned at the electric heating tube 3 of eminence
There are the situations of dry combustion method for one end.
As above, after two pack supports 201 and Thermal Cutoffs 202 being set at the both ends of electric heating tube 3, at electric heater
In heeling condition, electric heating tube 3 is in one end of eminence there are during dry combustion method phenomenon, and the corresponding end temperature of electric heating tube 3 can be very
Fast to rise, after temperature is more than the set temperature of Thermal Cutoffs 202, Thermal Cutoffs 202 will fuse, and cut off entire electricity
Road, it is ensured that safety.
Specifically, stent 201 is fixed with the soldering of electric heating tube 3, and Thermal Cutoffs 202 can be tight by bolt with stent 201
Gu.In this way, Thermal Cutoffs 202 is conveniently replaceable new fuse after fusing.
Specifically, two and more than electric heating tube 3 is are connected in parallel, Thermal Cutoffs 202 and two and more than electrical heating
The main line of the connection circuit of pipe 3 is arranged in series.With reference to Figure 22, Thermal Cutoffs 202 is two, and two Thermal Cutoffs 202 are adjacent
The end set of nearly electric heating tube 3, two and more than electric heating tube are parallel branch, and two Thermal Cutoffs are connected to simultaneously
Join the both ends of branch, and two Thermal Cutoffs 202 are connected with parallel branch.At this point, as long as a certain electric heating tube 3 is in dry
During burning, Thermal Cutoffs 202 fuses, you can cuts off entire single channel.
Electric heater provided by the present invention is described in detail above.Specific case used herein is to this hair
Bright principle and embodiment is expounded, the explanation of above example is only intended to help understand the present invention method and its
Core concept.It should be pointed out that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, can also to the present invention some improvement and modification can also be carried out, these improvement and modification also fall into the protection of the claims in the present invention
In the range of.
Claims (11)
1. a kind of electric heater, including electric heating tube, housing and installing plate, the housing includes housing peripheral wall and isolated part,
The isolated part is located on the inside of the housing peripheral wall, and the isolated part is fixedly installed with the housing peripheral wall；The isolation
Component has the first side and the second side being oppositely arranged, and first side has groove, and the electric heating tube is at least
Part is located at groove；
The electric heater includes heating tube chamber, installation cavity and fluid cavity, the second side of the isolated part, the installing plate
And be at least part wall portion to form the fluid cavity positioned at the housing peripheral wall between the two, the fluid cavity is located at institute
It states between heating tube chamber and the installation cavity, the fluid cavity is separated with the heating tube chamber by the isolated part, described
Fluid cavity is separated with the installation cavity by the installing plate；
The electric heater includes stent and the Thermal Cutoffs with stent fixed setting, the stent and the electrical heating
Setting is fixed or contacted to pipe, and the stent is contacted with the electric heating tube, the Thermal Cutoffs and the electric heating tube
Circuit is connected.
2. electric heater according to claim 1, which is characterized in that the groove for two and more than, the electrical heating
Manage as two and more than, each groove is provided with an at least electric heating tube, and the stent includes strip plate and at least two
A extension, the strip plate and two extensions are in contact or are structure as a whole, one of extension with it is relatively close
The electric heating tube contact of housing peripheral wall, another electric heating tube of another extension and relatively close housing peripheral wall connect
It touches.
3. electric heater according to claim 2, which is characterized in that the extension is adjacent to the end of the electric heating tube
Setting, the extension connect the electric heating tube and the strip plate, and the extension is fixedly installed with the electric heating tube
Or the extension is fixedly installed with the isolated part.
4. the electric heater according to Claims 2 or 3, which is characterized in that the electric heating tube has flat part and is located at
The warping part at both ends, the flat part are fixedly installed with the groove, and the stent is flat at least two electric heating tube
Straight portion's contact and the stent are with the position that the flat part contacts adjacent to the warping part, the Thermal Cutoffs and the length
Batten is fixedly installed.
5. according to the electric heater described in any one of claim 1-4, the stent is two, and the electric heating tube is strip
Shape structure, one end of a neighbouring electric heating tube in the stent are set, another in the stent is neighbouring described
The other end setting of electric heating tube；
The housing includes case frame, and the case frame includes the housing peripheral wall and the isolated part, the housing
Peripheral wall and the isolated part are wholely set.
6. electric heater according to any one of claims 1-5, which is characterized in that the electric heating tube for two and with
On, described two and more than electric heating tube is are connected in parallel, the Thermal Cutoffs and described two and more than electric heating tube
The main line of connection circuit is arranged in series.
7. electric heater according to claim 6, which is characterized in that the Thermal Cutoffs is two, described two temperature
End set of the fuse adjacent to the electric heating tube is spent, described two and more than electric heating tube are parallel branch, described two
Thermal Cutoffs is connected to the both ends of the parallel branch, and described two Thermal Cutoffs and the parallel branch string
Connection.
8. according to the electric heater described in any one of claim 1-7, which is characterized in that the installing plate is towards the installation
One side of chamber is equipped with the circuit control panel being electrically connected with the electric heating tube, and the isolated part has through hole, described
The through hole connection heating tube chamber and the installation cavity, the conducting wire being electrically connected with the electric heating tube pass through the through hole simultaneously
It is electrically connected with the circuit control panel.
9. according to the electric heater described in any one of claim 1-8, which is characterized in that the stent be metallic support, institute
It states stent to fix with electric heating tube soldering, the Thermal Cutoffs is fixed with the support bracket bolt；
The housing includes case frame, and the case frame includes the housing peripheral wall and the isolated part, the housing
Peripheral wall and the isolated part are wholely set.
10. according to the electric heater described in any one of claim 1-9, which is characterized in that the fluid inlet, fluid outlet
Positioned at the housing peripheral wall, the inner walls are fixedly installed demarcation strip, the demarcation strip by the fluid cavity be divided into
Few two points of chambers, the demarcation strip is between the fluid inlet and the fluid outlet, the fluid inlet, fluid outlet
The communication port connection set by the demarcation strip or the fluid inlet, fluid outlet by the demarcation strip with it is described
The communication port connection set between inner walls.
11. according to the electric heater described in any one of claim 1-7, which is characterized in that the installing plate is towards the stream
One side of body cavity is provided with protrusion, and the installing plate is equipped with protrusion, the protrusion and institute towards a side of the installation cavity
At least part position for stating protrusion or the protrusion is corresponding, and the protrusion has the installing blind for extending to the protrusion；
The installing plate is equipped with the insulated gate bipolar crystal for installing the circuit control panel towards a side of the installation cavity
The boss of pipe, the installing plate are equipped with strip projected parts, the strip projected parts and the boss towards a side of the fluid cavity
Position corresponds to；One of described strip projected parts have protruding portion, and the boss is equipped with installing blind, the installing blind and institute
At least part position for stating protruding portion or the protruding portion is corresponding, and the installing blind extends to the corresponding protrusion
Portion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016112596842 | 2016-12-30 | ||
| CN201611259684 | 2016-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710228835.6A Active CN108266887B (en) | 2016-12-30 | 2017-04-10 | Electric heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495990A (en) * | 2018-12-10 | 2019-03-19 | 江苏中热机械设备有限公司 | A kind of electric heater unit |
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|---|---|
| CN108266887B (en) | 2021-04-20 |
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