CN109729604A - PTC electric heater - Google Patents
PTC electric heater Download PDFInfo
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- CN109729604A CN109729604A CN201910027538.4A CN201910027538A CN109729604A CN 109729604 A CN109729604 A CN 109729604A CN 201910027538 A CN201910027538 A CN 201910027538A CN 109729604 A CN109729604 A CN 109729604A
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- 238000010438 heat treatment Methods 0.000 claims abstract description 54
- 238000005192 partition Methods 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 230000017525 heat dissipation Effects 0.000 description 5
- 210000003205 muscle Anatomy 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000005474 detonation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229960001866 silicon dioxide Drugs 0.000 description 3
- 230000000739 chaotic effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
This application involves heater technical fields, in particular to a kind of PTC electric heater comprising upper cover, control cabinet, medium box and the lower cover set gradually from top to bottom；Upper cover and control cabinet surround to form control chamber, are provided with control assembly in control chamber；Opening is equipped at the top and bottom of medium box, middle part is provided with partition, and dielectric cavity is formed between partition and control cabinet, forms heating chamber between lower cover and partition, is provided with heating component in heating chamber；Partition is formed with multiple protrusions arranged side by side into dielectric cavity, is each formed with runner between protrusion and between medium box side wall and protrusion, multiple first ribs are formed in the protrusion and/or side wall of runner two sides.Pass through simple topology layout, control assembly and heating component are kept apart using dielectric cavity, and the turbulent flow in runner is increased by the first rib of setting, the medium flowed in dielectric cavity continuously takes away heat, so that the temperature of medium is close in the temperature and dielectric cavity of control assembly.
Description
Technical field
This application involves heater technical fields, in particular to a kind of PTC electric heater.
Background technique
PTC (Positive Temperature Coefficient) heater is PTC heater.Since PTC is heated
Device has the characteristics that starting speed is fast, temperature control is good, functional reliability is ideal, energy saving and long service life, thus wide
It is general to be used as manufacture all kinds of electric heating appliance such as air conditioner, heater, dryer, dish-washing machine, water heater, food processor, heated types
The electrical heating elements of floor cleaner etc., or even also as such as current limiter, filtering protector, overload protective device, demagnetization control
The important component of the control and protection device of device, starting controller etc.At this stage, ptc heater is often being configured at new energy
On source electric car, it to be used for battery thermal management and warming by air conditioner.
The isostructural surface temperature of circuit board cannot be effectively reduced in the PTC electric heater of the prior art in use,
Circuit control panel is placed in for a long time in the higher environment of temperature, and the electronic component service life greatly shortens, or even failure, reduces PTC electricity
The life of product of heater and use validity period.
Summary of the invention
In order to solve the above-mentioned technical problem or it at least is partially solved above-mentioned technical problem, the technical program provides one
Kind PTC electric heater.
According to a kind of PTC electric heater of the embodiment of the present application comprising the upper cover that sets gradually from top to bottom, control
Case, medium box and lower cover；
The control cabinet top opening, the upper cover and control cabinet surround to form control chamber, are provided in the control chamber
Control assembly；
Opening is equipped at the top and bottom of the medium box, middle part is provided with partition, the partition and the control cabinet
Between form dielectric cavity, form heating chamber between the lower cover and the partition, be provided with heating component in the heating chamber；
The partition is formed with multiple protrusions arranged side by side into the dielectric cavity, between the protrusion and protrusion and
It is each formed with runner between the medium box side wall and protrusion, is formed in the protrusion and/or side wall of the runner two sides multiple
First rib.
Further, PTC electric heater further includes cylinder manifold and connector, and the heating component includes that multiple PTC electricity add
Positive terminal and the negative terminal matching of hot core, each PTC electrical heating core are plugged on cylinder manifold, and the two of the connector
The electric connection of the cylinder manifold Yu the PCB circuit board is realized respectively with the control assembly and the cylinder manifold grafting in end.
Further, the connecting hole for being connected to the control chamber and the heating chamber is provided on the medium box, it is described to connect
Plug-in unit is arranged in the connecting hole.
Further, the control assembly includes PCB circuit board and the IGBT module that connect with the PCB circuit board, institute
State the bottom plate that PCB circuit board is parallel to the control cabinet.
Further, bonding column, the high-voltage connector connecting respectively with the PCB circuit board are provided on the control cabinet
With low pressure connector.
Further, cavity is formed in the protrusion, the cavity is connected to heating chamber, the heating component matching peace
Dress is in the cavity.
Further, the bottom plate of the control cabinet is provided with radiating block, the IGBT mould away from the side of the dielectric cavity
Block, which pastes, to be arranged on the radiating block.
Further, inlet and liquid outlet respectively at dielectric cavity connection are provided on the medium box.
Further, the axial direction for extending perpendicularly to the inlet or liquid outlet of first rib.
In the structure for the PTC electric heater that above-mentioned technical proposal provides, control cabinet bottom plate and medium box constitute medium
Control assembly is placed in the top of dielectric cavity by chamber, and heating component is placed in the lower section of dielectric cavity, efficiently solves the control of electric heater
The excessively high problem of component temperature processed, and the first muscle is both provided on the protrusion of runner two sides and the side wall of medium box in dielectric cavity
Item, thus it is possible to vary the flow trace of liquid medium increases the turbulent flow of medium, can make PTC electric heater control assembly and
Rate of heat exchange between medium greatly promotes, further improving heat radiation efficiency.Compared to other electric heaters, by simply tying
Structure layout, is kept apart control assembly and heating component using dielectric cavity, and is increased in runner by the first rib of setting
Turbulent flow, by heat exchange, the medium flowed in dielectric cavity continuously takes away heat, so that the temperature of control assembly and Jie
The temperature of medium is close in matter chamber.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other
Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not
Constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 shows schematically the detonation configuration figure of the application electric heater；
Fig. 2 shows schematically the three-dimensional structure diagram of the application electric heater；
Fig. 3 shows schematically the internal structure chart of radiator structure in the application electric heater；
Fig. 4 shows schematically the annexation figure of radiating subassembly and medium box in the application electric heater；
Fig. 5 shows schematically the cross-sectional view (one) of the application electric heater；
Fig. 6 show schematically the application electric heater cross-sectional view (secondly)；
Fig. 7 shows schematically the three-dimensional structure diagram of the medium box of the application electric heater；
Fig. 8 shows schematically the overlooking structure figure of the medium box of the application electric heater；
Fig. 9 shows schematically the detonation configuration figure of the circuit structure of the application electric heater；
Figure 10 shows schematically the assembled relation figure of the circuit structure of the application electric heater；
Figure 11 shows schematically the cross-sectional view of the circuit structure of the application electric heater；
Figure 12 shows schematically the cylinder manifold of the application electric heater and the assembled relation figure of heating component；
Figure 13 shows schematically the cylinder manifold of the application electric heater and the detonation configuration figure of heating component；
Figure 14 shows schematically the cylinder manifold of the circuit structure of the application electric heater and the structure chart of insulation bottom case；
And
Figure 15 is the partial enlarged view of encircled portion in Figure 13.
In figure:
1, PCB circuit board；2, dielectric cavity；3, heating component；4, control cabinet；5, sealing ring；6, medium box；6-1, the first side
Wall；6-2, second sidewall；6-3, third side wall；6-4, the 4th side wall；7, liquid in-out mouth；7-1, inlet；7-2, liquid outlet；8,
First rib；9, raised；10, briquetting；11, silicagel pad；12, IGBT module；13, radiating block；14, cylinder manifold；14-1, main part
Point；14-2, protrusion part；15, insulate bottom case；16, positive terminal；17, negative terminal；18, connector；19, upper cover；20, absolutely
Edge upper cover；21, lower cover；22, first segment；23, bonding column；24, low pressure connector；25, high-voltage connector；26, mounting hole；27,
Partition；28, the second rib；29, connecting hole；30, second segment；31, the first wiring hole；32, the second wiring hole；33, third wiring
Hole；34, through-hole；35, groove；36, lattice baffle.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that term " includes " and " tool in the description and claims of this application and above-mentioned attached drawing
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of system of units, producing
Product or equipment those of are not necessarily limited to be clearly listed unit, but may include be not clearly listed or for these products
Or its unit that equipment is intrinsic.
In this application, term " on ", "lower", "inner", " in ", the orientation or positional relationships of the instructions such as "outside" be based on attached
Orientation or positional relationship shown in figure.These terms are not intended to primarily to better describe the application and embodiment
Limit indicated device, element or component there must be particular orientation, or be constructed and operated with particular orientation.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in this application can be understood as the case may be.
In addition, term " setting ", " connection ", " fixation " shall be understood in a broad sense.For example, " connection " may be a fixed connection,
It is detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be directly connected, or pass through centre
Medium is indirectly connected, or is two connections internal between device, element or component.For ordinary skill
For personnel, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.1-15 and it is described in detail the application in conjunction with the embodiments below with reference to the accompanying drawings.
As illustrated in fig. 1 and 2, the three-dimensional structure diagram and explosion knot of PTC electric heater provided by the embodiments of the present application are given
Composition comprising upper cover 19, control cabinet 4, medium box 6 and the lower cover 21 set gradually from top to bottom；4 top opening of control cabinet,
Upper cover 19 and control cabinet 4 surround to form control chamber, are provided with control assembly in control chamber；The top and bottom of medium box 6 are all provided with
There is opening, middle part is provided with partition 27, forms dielectric cavity 2 between partition 27 and control cabinet 4, is formed between lower cover 21 and partition 27
Heating chamber is provided with heating component 3 in heating chamber；Partition 27 is formed with multiple protrusions 9 arranged side by side into dielectric cavity 2, convex
It rises between 9 and protrusion 9 and is each formed with runner between 6 side wall of medium box and protrusion 9, in the protrusion 9 or side wall of runner two sides
It is formed with multiple first ribs 8.
In the structure of electric heater provided by the above embodiment, 4 bottom plate of control cabinet and medium box 6 constitute dielectric cavity 2, will
Control assembly is placed in the top of dielectric cavity 2, and heating component 3 is placed in the lower section of dielectric cavity 2, efficiently solves the control of electric heater
The excessively high problem of component temperature, and the first muscle is both provided on the protrusion 9 of runner two sides and the side wall of medium box 6 in dielectric cavity 2
Item 8, thus it is possible to vary the flow trace of liquid medium increases the turbulent flow of medium, can make PTC electric heater control assembly and
Rate of heat exchange between medium greatly promotes, further improving heat radiation efficiency.Compared to other electric heaters, by simply tying
Structure layout, is kept apart control assembly and heating component 3 using dielectric cavity 2, and is increased in runner by the first rib 8 of setting
Turbulent flow, by heat exchange, the medium flowed in dielectric cavity 2 continuously takes away heat, so that the temperature of control assembly
It is close with the temperature of medium in dielectric cavity 2.
Wherein, the housing body construction of upper cover 19, control cabinet 4, medium box 6 and lower cover 21 as PTC electric heater, mutually
Between can closely connect, connection type includes but is not limited to be clamped, be spirally connected, weld, be interference fitted and its combine, such as Fig. 1 institute
Show, mounting hole 26 can be set on each structural unit, mounting hole 26 is passed through by screw and is fastenedly connected.
As illustrated in fig. 1 and 2, bonding column 23, the high-voltage connector connecting respectively with PCB circuit board 1 are provided on control cabinet 4
25 and low pressure connector 24.Wherein high-voltage connector 25 with high tension apparatus for connecting, and low pressure connector 24 is used for and low-voltage device
Part connection.
Control assembly and heating component 3 are kept apart using dielectric cavity 2 in the application, it below will be by Fig. 3-6 come specific
Illustrate detailed technical solution, as seen in figures 3-6, electric heater includes control cabinet 4, medium box 6, control assembly and heating component
3, opening is arranged in the top of medium box 6, and the bottom plate of control cabinet 4 matches connection with opening, and control cabinet 4 surrounds to be formed with medium box 6
The bottom (i.e. partition 27) of dielectric cavity 2, dielectric cavity 2 forms multiple raised 9 to 2 sunken inside of dielectric cavity, is formed in protrusion 9 free
Chamber；3 Matching installation of heating component is in cavity；The side that the bottom of control cabinet 4 is located at dielectric cavity 2 forms fluted 35, protrusion 9
Top protrudes into groove 35 and is formed with gap between groove 35；Control assembly is arranged in control cabinet 4.The setting of groove 35
Medium in dielectric cavity 2 can be increased can make between control cabinet 4 and medium along the turbulence intensity of 4 flows of control cabinet
Rate of heat exchange greatly promote, to improve the radiating efficiency of the control assembly in control cabinet 4, groove 35 is protruded on raised 9 tops
And the set-up mode that gap is formed between groove 35 can guarantee to be formed with media flow between protrusion 9 and control cabinet 4
Channel guarantees the flowing velocity of medium, provides heat exchange efficiency.
As it can be seen in figures 5 and 6, heating component 3, protrusion 9 and groove 35 have been arranged in a one-to-one correspondence multiple groups, the groove being continuously arranged
35 structures can further enhance the turbulence intensity of medium, improve heat exchange efficiency.
As shown, control assembly includes PCB circuit board 1 and the IGBT module connecting with PCB circuit board 1 12, PCB circuit
Plate 1 is parallel to the bottom plate of control cabinet 4 and the bottom plate gap setting with control cabinet 4.The bottom plate gap of PCB circuit board 1 and control cabinet 4
Setting, the component that can protect PCB circuit board 1 avoids being pressurized, and can play certain insulating effect, PCB circuit board 1
The bottom plate for being parallel to control cabinet 4 can provide biggish heat dissipation area, improve radiating efficiency.
IGBT module 12 is to pass through spy by IGBT (insulated gate bipolar transistor chip) and FWD (freewheeling diode chip)
Modularized semiconductor product made of fixed circuit bridge encapsulation, since IGBT module 12 will generate power loss in the course of work
That is internal loss, so as to cause fever, temperature rises, and easily causes device electrically or thermally unstable and leads to component failure.In order to
The heat dissipation for further increasing IGBT module 12, as shown in Fig. 3,5 and 6, the bottom plate of control cabinet 4 is arranged away from the side of dielectric cavity 2
There is radiating block 13, IGBT module 12, which pastes, to be arranged on radiating block 13.Specifically, IGBT module 12 by briquetting 10 be pressed on it is scattered
In heat block 13, silicagel pad 11 is provided between briquetting 10 and IGBT module 12,11 one side of silicagel pad plays insulating effect, another
Aspect can prevent IGBT module 12 to be subject to crushing.The liquid in-out mouth 7 being connected to dielectric cavity 2 is respectively arranged on medium box 6, specifically
For inlet 7-1 and liquid outlet 7-2, it is preferred that IGBT module 12 and radiating block 13 are arranged in control cabinet 4 close to inlet 7-1
Side.Since the inlet 7-1 medium temperature gone out can be more lower, it is more favorable for the heat dissipation of IGBT module 12.
Preferably, the axial direction of inlet 7-1 is vertical with the extending direction of the first rib 8, can manufacture to the greatest extent disorderly
Stream.
In order to realize the sealing of dielectric cavity 2, as shown in Figure 3 and Figure 5, it is provided between the bottom plate and medium box 6 of control cabinet 4
Sealing ring 5.
In order to realize good heat dissipation effect, the material of medium box 6 and control cabinet 4 in the embodiment of the present application is thermal conductivity
Excellent material, such as metal etc., including but not limited to aluminium alloy.
As seen in figures 3-6, the outer wall perimeter on dielectric cavity 2 bottom to the direction of 4 bottom plate of control cabinet of protrusion 9 is tapered, cavity
It is tapered in the direction upper section of 2 bottom of dielectric cavity to 4 bottom plate of control cabinet.Up-small and down-big vertebral body structure design can increase protrusion
9 surface area increases heat exchange area, and the tapered structure of cavity, can be convenient the insertion and assembling of radiating subassembly, realizes
The matching of cavity and radiating subassembly connects.It should be noted that heating component 3 includes PTC heat generating core, PTC heat generating core is set as
It is multiple, be respectively set in each raised 9 cavity.
In embodiment provided by the present application, for the turbulence intensity of medium in amplified medium chamber 2, to medium box 6
Structure is improved, and is provided with the first rib 8 in runner two sides, Fig. 7 and Fig. 8 give specific embodiment.
As shown in FIG. 7 and 8,6 structure of medium box for PTC electric heater is given comprising medium box 6, medium box 6
Inside is formed with dielectric cavity 2, and the bottom (i.e. partition 27) of dielectric cavity 2 is formed with multiple protrusions arranged side by side into dielectric cavity 2
9, be each formed with runner between protrusion 9 and protrusion 9 and between 6 side wall of medium box and protrusion 9, the protrusion 9 of runner two sides and/or
Multiple first ribs 8 are formed on side wall.Preferably, the first rib 8 of runner two sides is staggered.Being staggered is the first muscle
Item 8 makes medium meandering flow in runner, further enhances turbulent flow, improves heat exchange effect.
As shown, medium box 6 is preferably shaped to cube structure, including set gradually the first side wall 6-1, second
Side wall 6-2, second sidewall 6-3 and the 4th side wall 6-4,9 the first side wall 6-1 that are in long strip and being parallel to medium box 6 of protrusion and
Second sidewall 6-3, medium box 6 perpendicular to protrusion 9 second sidewall 6-2 and/or the 4th side wall 6-4 on be provided with inlet 7-1
With liquid outlet 7-2.When inlet 7-1 and liquid outlet 7-2 is arranged on same side wall, inlet 7-1 and liquid outlet 7-2 setting
At the both ends of same side wall, the runner that medium, which is arranged such, to be surround around protrusion 9 from inlet 7-1 is collected to liquid outlet 7-
At 2；When inlet 7-1 and liquid outlet 7-2 is arranged on different lateral, inlet 7-1 and liquid outlet 7-2 are set at diagonally opposing corner
It sets, extends runner stroke and time of the medium in dielectric cavity 2, sufficient heat exchange is carried out, after avoiding medium from entering dielectric cavity 2
Enter liquid outlet 7-2 in a linear fashion to be discharged.
As shown in FIG. 7 and 8, in order to advanced optimize the flow circuits of medium, the end of strip protrusion 9 and second sidewall
It is provided with lattice baffle 36 between 6-2 or the 4th side wall 6-4, lattice baffle 36 is used for the dielectric separates of its two sides, is being parallel to the
On the direction of two side wall 6-2, two adjacent lattice baffles 36 are separately connected different side walls and different protrusions 9, the set-up mode
It can guarantee that medium can be along the snakelike flowing of runner.
Specifically, as shown in figure 8, protrusion 9 is set as seven, from the first side wall 6-1 to the direction of second sidewall 6-3 on,
Between second protrusion 9 and second sidewall 6-2, the 4th between protrusion 9 and the 4th side wall 6-4, the 6th protrusion 9 and second side
Lattice baffle 36 is provided between wall 6-2, inlet 7-1 and liquid outlet 7-2 are arranged on second sidewall 6-2, and inlet 7-1 is just
To first protrusion 9, the 7th protrusion 9 of liquid outlet 7-2 face.Preferably, protrusion 9 is uniformly distributed in dielectric cavity 2, the first rib 8
It is uniformly distributed on the side wall of protrusion 9 or medium box 6.
In some embodiments, multiple second ribs 28, the second muscle are provided on second sidewall 6-2 and the 4th side wall 6-4
Runner between 28 face of item, two protrusion 9,28 one side of the second rib can increase along second sidewall 6-2 and the 4th side wall 6-
The temperature stream of the medium of 4 flowings, on the other hand can play shunting function to the medium flowed out in runner.
Above embodiment provide 6 structure of medium box in so that the heating component 3 and medium of PTC electric heater it
Between rate of heat exchange greatly promote, the heats power of PTC heating component 3 is significantly increased, required for same target performance number
The quantity of PTC heating component 3 greatly reduce, improve the resource utilization of PTC heating component 3, also reduce PTC electric heating
The volume of device.On the other hand, the heat exchange between the control assembly and medium of 2 top of dielectric cavity is similarly enhanced, is improved
The heat dissipation effect of control assembly.
Cabling mode is conducting wire connection inside the PTC electric heater of the prior art, and the mode of conducting wire connection makes heater
Internal cabling is chaotic, the stability of mutual interference effect Electro Magnetic Compatibility EMC between conducting wire；And between wire skin
Friction is easy to cause core exposed, causes short circuit, generates security risk.In electric heater provided by the present application, to understand
Certainly above-mentioned technical problem, as shown in Fig. 9-15, PTC electric heater further includes cylinder manifold 14 and connector 18, and heating component 3 includes
Positive terminal 16 and negative terminal 17 matching of multiple PTC electrical heating cores, each PTC electrical heating core are plugged on cylinder manifold 14,
With 14 grafting of control assembly and cylinder manifold, realize that cylinder manifold 14 and the electrical property of PCB circuit board 1 connect respectively in the both ends of connector 18
It connects.As shown in FIG. 7 and 8, the connecting hole 29 of connection control chamber and heating chamber is provided on medium box 6, the setting of connector 18 is even
It connects in hole 29.
Specifically, as shown, PTC electric heater include medium box 6, heating component 3, PCB circuit board 1, cylinder manifold 14,
Insulate bottom case 15 and connector 18, and heating component 3 includes multiple PTC electrical heating cores, and electrical heating core is separately positioned on dielectric cavity 2
Lower section, one end of each PTC electrical heating core are respectively provided with equipped with positive terminal 16 and negative terminal 17, positive terminal 16 and negative pole end
17 matching of son is plugged on cylinder manifold 14；The bottom case 15 that insulate is arranged between cylinder manifold 14 and PTC electrical heating core；PCB circuit board 1 is set
Set in the top of medium box 6, the both ends of connector 18 respectively with 14 grafting of PCB circuit board 1 and cylinder manifold, realize cylinder manifold 14 with
The electric connection of PCB circuit board 1.
As shown in figure 14, cylinder manifold 14 is provided with first wiring hole 31 corresponding with positive terminal 16 and and positive terminal
16 corresponding second wiring holes 32, the both ends of connector 18 are respectively arranged with inserting terminal, and cylinder manifold 14 is additionally provided with and connects
The corresponding third wiring hole 33 of the inserting terminal of 18 one end of plug-in unit.Electric current is realized by the grafting between terminal and connection jaws
Conducting.Preferably, between positive terminal 16 and the first wiring hole 31, between negative terminal 17 and the second wiring hole 32, inserted terminal
Son with grafting is matched between third wiring hole 33 after fixed by soldering.
It realizes PCB circuit board 1 instead of guiding by cylinder manifold 14 and connector 18 in above-mentioned embodiment and adds
Electrical connection between hot component 3, the mode for avoiding conducting wire connection make heater body cabling chaotic, between conducting wire each other
Interference effect EMC stability the problem of.However, between cylinder manifold 14 and partition 27 or cylinder manifold 14 and heating component 3
Can there are problems that contact short circuit, the setting of insulation bottom case 15 can solve the problem, setting cylinder manifold 14 and heating component 3 it
Between play good insulation effect.Specifically, insulation bottom case 15 is identical as the shape of cylinder manifold 14, and corresponding on the bottom case 15 that insulate
Through-hole 34 is formed in the position of the first wiring hole 31, the second wiring hole 32 and third wiring hole 33.
As shown in figure 15, positive terminal 16 and negative terminal 17 are step structure, and step structure includes 22 He of first segment
Second segment 30, first segment 22 is concordant with the side of second segment 30 and the width of first segment 22 is greater than the width of second segment 30, through-hole
34 match with first segment 22, and the first wiring hole 31 and the second wiring hole 32 match with second segment 30 respectively, first segment 22
Height is identical as the insulation thickness of bottom case 15.First segment 22, which can be played, matches connection with the bottom case 15 that insulate, and plays limit and fixes
Effect, and can be used for the limit of 14 grafting of cylinder manifold.
As shown in figure 14, cylinder manifold 14 includes main part 14-1 and protrusion part 14-2, main part 14-1 and protrusion
Part 14-2 forms convex shape structure, and main part 14-1 is covered in PTC electrical heating core and positive terminal 16 and negative terminal
17 are plugged on main part 14-1, and connector 18 is plugged on protrusion part 14-2, protrude part 14-2 and connector 18 is set
It sets in the side of medium box 6, cylinder manifold 14, connector 18 and PCB circuit board 1 are in turn connected to form U-shaped structure.
As shown in Figure 1, PTC electric heater further includes the insulation upper cover 20 being fastened and connected with insulation bottom case 15, cylinder manifold 14
Setting is between insulation bottom case 15 and insulation upper cover 20.Insulation upper cover 20 can be used for 14 another side of cylinder manifold with the external world it is exhausted
Edge.The material of insulation bottom case 15 and the upper cover 20 that insulate is preferably rubber or plastic cement.
It should be noted that other of the application PTC electric heater constitute and operate the ordinary skill for this field
Be for personnel it is known, be referred to the structure of PTC electric heater in the prior art, be not described in detail herein.
Section Example is described in a progressive manner in this specification, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The above is only a specific embodiment of the invention, make skilled artisans appreciate that or realizing of the invention.It is right
A variety of modifications of these embodiments will be apparent to one skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not
It is intended to be limited to the embodiments shown herein, and is to fit to consistent most with applied principle and features of novelty herein
Wide range.
Claims (9)
1. a kind of PTC electric heater, which is characterized in that including set gradually from top to bottom upper cover, control cabinet, medium box and under
Lid；
The control cabinet top opening, the upper cover and control cabinet surround to form control chamber, and control is provided in the control chamber
Component；
Opening is equipped at the top and bottom of the medium box, middle part is provided with partition, between the partition and the control cabinet
Dielectric cavity is formed, heating chamber is formed between the lower cover and the partition, is provided with heating component in the heating chamber；
The partition is formed with multiple protrusions arranged side by side into the dielectric cavity, between the protrusion and protrusion and described
It is each formed with runner between medium box side wall and protrusion, is formed with multiple first in the protrusion and/or side wall of the runner two sides
Rib.
2. PTC electric heater according to claim 1, which is characterized in that further include cylinder manifold and connector, the heating
Component includes multiple PTC electrical heating cores, and positive terminal and the negative terminal matching of each PTC electrical heating core are plugged on confluence
On plate, the both ends of the connector respectively with the control assembly and the cylinder manifold grafting, realize the cylinder manifold with it is described
The electric connection of PCB circuit board.
3. PTC electric heater according to claim 2, which is characterized in that be provided with the connection control on the medium box
The connecting hole of chamber processed and the heating chamber, the connector are arranged in the connecting hole.
4. PTC electric heater according to claim 1, which is characterized in that the control assembly include PCB circuit board and with
The IGBT module of the PCB circuit board connection, the PCB circuit board are parallel to the bottom plate of the control cabinet.
5. PTC electric heater according to claim 4, which is characterized in that be provided on the control cabinet respectively with it is described
Bonding column, high-voltage connector and the low pressure connector of PCB circuit board connection.
6. PTC electric heater according to claim 1, which is characterized in that be formed with cavity, the cavity in the protrusion
It is connected to heating chamber, the heating component Matching installation is in the cavity.
7. PTC electric heater according to claim 4, which is characterized in that the bottom plate of the control cabinet deviates from the medium
The side of chamber is provided with radiating block, and the IGBT module, which pastes, to be arranged on the radiating block.
8. PTC electric heater according to claim 1, which is characterized in that be provided on the medium box respectively at described
The inlet and liquid outlet of dielectric cavity connection.
9. PTC electric heater according to claim 8, which is characterized in that first rib extends perpendicularly to
The axial direction of the inlet or liquid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027538.4A CN109729604A (en) | 2019-01-11 | 2019-01-11 | PTC electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027538.4A CN109729604A (en) | 2019-01-11 | 2019-01-11 | PTC electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109729604A true CN109729604A (en) | 2019-05-07 |
Family
ID=66299111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910027538.4A Withdrawn CN109729604A (en) | 2019-01-11 | 2019-01-11 | PTC electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109729604A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895846A (en) * | 2021-02-02 | 2021-06-04 | 镇江海姆霍兹传热传动系统有限公司 | Electric vehicle, electric heater and electric heating cavity assembly thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203687327U (en) * | 2013-12-13 | 2014-07-02 | 比亚迪股份有限公司 | Ptc liquid heating device |
| CN207549910U (en) * | 2017-12-11 | 2018-06-29 | 孝感华工高理电子有限公司 | A kind of PTC hot-water heating systems for New-energy electric vehicle with control module |
| CN108592383A (en) * | 2018-05-18 | 2018-09-28 | 上海奉天电子股份有限公司 | A kind of electric calorifie installation for new-energy automobile |
| CN109028553A (en) * | 2018-08-01 | 2018-12-18 | 深圳市赛尔盈电子有限公司 | A kind of ptc heater |
| CN209949457U (en) * | 2019-01-11 | 2020-01-14 | 深圳市赛尔盈电子有限公司 | PTC electric heater |
-
2019
- 2019-01-11 CN CN201910027538.4A patent/CN109729604A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203687327U (en) * | 2013-12-13 | 2014-07-02 | 比亚迪股份有限公司 | Ptc liquid heating device |
| CN207549910U (en) * | 2017-12-11 | 2018-06-29 | 孝感华工高理电子有限公司 | A kind of PTC hot-water heating systems for New-energy electric vehicle with control module |
| CN108592383A (en) * | 2018-05-18 | 2018-09-28 | 上海奉天电子股份有限公司 | A kind of electric calorifie installation for new-energy automobile |
| CN109028553A (en) * | 2018-08-01 | 2018-12-18 | 深圳市赛尔盈电子有限公司 | A kind of ptc heater |
| CN209949457U (en) * | 2019-01-11 | 2020-01-14 | 深圳市赛尔盈电子有限公司 | PTC electric heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112895846A (en) * | 2021-02-02 | 2021-06-04 | 镇江海姆霍兹传热传动系统有限公司 | Electric vehicle, electric heater and electric heating cavity assembly thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190507 |