CN115474299A - Tubular heating resistor for vehicle - Google Patents
Tubular heating resistor for vehicle Download PDFInfo
- Publication number
- CN115474299A CN115474299A CN202110645981.5A CN202110645981A CN115474299A CN 115474299 A CN115474299 A CN 115474299A CN 202110645981 A CN202110645981 A CN 202110645981A CN 115474299 A CN115474299 A CN 115474299A
- Authority
- CN
- China
- Prior art keywords
- resistance heating
- heating resistor
- insulator
- resistance
- tube
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 106
- 239000012212 insulator Substances 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 8
- 230000007797 corrosion Effects 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 238000010292 electrical insulation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/04—Waterproof or air-tight seals for heaters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
Landscapes
- Resistance Heating (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The invention relates to a tubular heating resistor for a vehicle, which comprises a resistance heating pipe, an installation chassis, an insulator and a leading-out rod, wherein the resistance heating pipe is arranged on the installation chassis; the resistance heating pipe is of a spiral structure, and the pipe orifice of the resistance heating pipe penetrates through and is fixed on the mounting base plate; an insulator is mounted at the top end of the outer tube of the resistance heating tube; the resistance heating pipe is connected with an external circuit through a leading-out rod. Compared with the prior art, the invention has the advantages of compact structure, high operating power, flexible design, strong electrical insulation capability, good sealing performance and the like.
Description
Technical Field
The invention relates to the field of heating resistors, in particular to a tubular heating resistor for a vehicle.
Background
Heating tube type resistors are relatively mature in liquid heating, but the existing designs mainly focus on the field of household or general industrial use, and have less application in vehicles. With the popularization of new energy vehicle development and use, the mode of heating the cooling liquid by the waste heat of the fuel engine is not applicable any more in the past; meanwhile, the requirement of the lithium battery system on a constant-temperature working area is stricter, so that an additional heating component is required to be introduced to be added into the cooling liquid system to serve as auxiliary heating of a vehicle, and the appropriate use temperature of the battery system and the cabin environment temperature are ensured.
The main auxiliary heating parts in the market at present are PTC ceramic heating parts, and although the main auxiliary heating parts have the advantages of simple temperature control and controlled heating, the main auxiliary heating parts also have the disadvantages of large volume and weight, high material cost and low heating rate; other tube-type heating resistors in the existing market are mainly designed from traditional civil or industrial systems, have single structures, complex sealing and welding processes, lower heating power and limited electrical insulation capacity, and still have great defects in the applicability of vehicle high-voltage electrical systems and vehicle operating environments. Therefore, a new compact tubular heating resistor is needed to meet the market demand of new energy vehicles.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a tubular heating resistor for a vehicle, which can realize rapid heating, has a reliable structure and is low in cost.
The invention can be realized by the following technical scheme:
a tubular heating resistor for vehicles comprises a resistance heating pipe, an installation chassis, an insulator and a leading-out rod; the resistance heating pipe is of a spiral structure, and the pipe orifice of the resistance heating pipe penetrates through and is fixed on the mounting base plate; an insulator is mounted at the top end of the outer tube of the resistance heating tube; the resistance heating pipe is connected with an external circuit through a leading-out rod.
As a preferred technical scheme, the resistance heating pipe adopts a spiral structure led out from one side, one end of the resistance heating pipe penetrates out of the spiral structure, and the resistance heating pipe and the other end of the resistance heating pipe are led out from the same side.
As a preferable technical scheme, the resistance heating pipe adopts a single-group or double-group nested mode.
As a preferred technical scheme, the shell of the resistance heating pipe is made of corrosion-resistant metal; the high-temperature resistance alloy wires and the insulating filling materials are filled inside the high-temperature resistance alloy wires.
According to the preferable technical scheme, all pipe orifices of the resistance heating pipe and the through hole of the mounting base plate are fixed through laser welding.
As a preferred technical scheme, the mounting chassis is made of corrosion-resistant metal.
As a preferred technical scheme, the mounting chassis is of a circular convex disc structure; the side edge of the middle boss is sealed with the cooling system heat exchanger shell in a structure mode of clinging to a plane or being capable of nesting a sealing ring.
As a preferred technical scheme, the insulator is made of electrical ceramics; the side edge of the insulator is of a corrugated structure; the insulator and the inner side of the orifice of the resistance heating pipe are sealed and fixed by silica gel.
As a preferred technical scheme, one end of the leading-out rod is connected with an alloy resistance wire in the resistance heating pipe, and the other end of the leading-out rod penetrates through a middle through hole of the insulator; the exposed part of the leading-out rod is connected with an external circuit.
As a preferable technical scheme, the leading-out rod is made of stainless steel or pure nickel.
Compared with the prior art, the invention has the following advantages:
1) The tubular heating resistor for the vehicle adopts the nested spiral structure led out from one side, so that the space utilization rate of a product, the integral heating power and the heat exchange efficiency of the product can be greatly improved;
2) The tubular heating resistor for the vehicle has the advantages of compact and reliable structure, good sealing performance, corrosion resistance, excellent environment-resistant mechanical performance, flexible and convenient installation and the like, and is more suitable for the installation and use environment of the vehicle;
3) According to the tubular heating resistor for the vehicle, the fixing and sealing treatment is carried out in a laser welding mode, so that the cost can be effectively reduced;
4) According to the tubular heating resistor for the vehicle, the insulator and the sealing insulating material are used, so that the insulation grade of a product can be effectively improved, and the high-voltage use requirement of 300 VDC-1000 VDC can be met.
Drawings
FIG. 1 is a schematic structural view of a tubular heating resistor for a vehicle according to the present invention;
FIG. 2 is a schematic view showing another structure of the tube-type heating resistor for a vehicle according to the present invention;
FIG. 3 is an exploded view of the tube-type heating resistor for a vehicle according to the present invention;
FIG. 4 is a sectional view showing the structure of the port connecting portion of the tube-type heating resistor for vehicles according to the present invention.
Wherein 1 is resistance heating pipe, 11 is resistance heating pipe outer coil pipe, 12 is resistance heating pipe inner coil pipe, 2 is the installation chassis, 21 is the convex disc side, 22 is the mounting hole, 3 is the insulator, 31 is the wave structure, 4 are for drawing forth the stick, 5 are silica gel, 6 are the laser welding position.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
As shown in fig. 2, the tube-type heating resistor for vehicles comprises a resistance heating tube 1, a mounting base plate 2, an insulator 3 and a lead-out rod 4;
the resistance heating tube 1 is a main heating function unit of the product, the shell is a corrosion-resistant stainless steel tube, and high-temperature resistance alloy wires and insulating fillers are filled in the resistance heating tube. The main body of the resistance heating pipe 1 is of a spiral structure, one end of the heating pipe penetrates out of the spiral structure and is led out from the same side as the other end of the heating pipe, and therefore the space occupation condition of a product can be effectively controlled; in consideration of different control modes of the heating system, the modified design can also adopt a form of two groups of resistance heating pipes, and the outer spiral pipe 11 of the resistance heating pipe and the inner spiral pipe 12 of the resistance heating pipe are mutually nested and installed, so that the purpose that two groups of different heating units are integrated on one product is realized, namely the use flexibility of the product is improved, the space utilization rate of the product is effectively improved, and the maximum product heating power of unit volume is realized. Two pipe openings of each group of heating pipe resistors vertically penetrate through and are fixed on the installation base plate 2.
The installation chassis 2 is stainless steel fire other corrosion-resistant metal materials, and the installation chassis 2 main part is circular protruding dish structure, and the side 21 of middle boss can adopt the plane or the design of embedded groove according to customer's design needs to realize sealing through different forms such as hugging closely driving fit or nested sealing washer and coolant system heat exchanger shell, the design of 2 outer lanes in installation chassis has four mounting holes 22 simultaneously, and accessible screw and cooling system heat exchanger are fixed mutually.
the resistance heating tube 1 is connected with an external circuit through a lead-out rod 4, the lead-out rod 4 is made of stainless steel or pure nickel, one end of the lead-out rod is connected with an alloy resistance wire inside the heating tube resistor, the other section of the lead-out rod passes through a middle through hole of the insulator 3, and the exposed part of the lead-out rod 4 can be connected with a heating control system through welding a lead wire, a connector terminal or directly welding the lead-out rod to a circuit board pad and the like;
after each pipe orifice of the resistance heating pipe 1 passes through the corresponding through hole of the installation chassis 2, the intersection part of the heating pipe wall and the inner wall of the through hole of the chassis is completely welded by laser welding 6, so that the connection mechanical strength and the waterproof sealing performance of the product are ensured; compared with the connecting methods such as brazing and the like adopted by the traditional tubular heating resistor, the method has the advantages of simple process link, high stability, less environmental pollution, low energy consumption and the like.
As shown in fig. 3, after an inner spiral tube 12 of the resistance heating tube is arranged inside an outer spiral tube 11 of the resistance heating tube and is rotated to a proper position, four leading-out ends are penetrated through an installation chassis 2 and fixed together, and each leading-out end of the resistance heating tube 1 is arranged into a tube opening and fixed after an insulator 3 penetrates through a leading-out rod 4; the product is fixed to the coolant system heat exchanger shell through four mounting holes 22 of the mounting base plate.
Fig. 4 shows an example of the structure and position of the fixing portion of the tube-type heating resistor for a vehicle. Wherein the orifice of the heating tube resistor 1 is flush with the upper edge of the mounting base plate 2, and is fixed and sealed through a laser welding position 6; the insulator 3 penetrates through the leading-out rod 4 and then is arranged in the inner cavity of the heating resistance tube 1, and silica gel 5 is filled at the joint for sealing and fixing.
Example 2
As shown in fig. 1, the resistance heating tube is in a single nested set, and the rest is the same as in example 1.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A tubular heating resistor for a vehicle is characterized by comprising a resistance heating pipe (1), an installation chassis (2), an insulator (3) and a leading-out rod (4); the resistance heating pipe (1) is of a spiral structure, and the pipe orifice of the resistance heating pipe penetrates through and is fixed on the mounting base plate (2); an insulator (3) is mounted at the top end of the outer tube of the resistance heating tube (1); the resistance heating pipe (1) is connected with an external circuit through a leading-out rod (4).
2. The tubular heating resistor for vehicle according to claim 1, wherein the resistance heating tube (1) is a spiral structure with one end extending out from the inside of the spiral and the other end extending out from the same side.
3. Tubular heating resistor according to claim 2, characterized in that the resistance heating tube (1) is in a single or double nested configuration.
4. The tubular heating resistor for vehicles according to claim 2, wherein the resistance heating tube (1) has a housing made of corrosion-resistant metal; the high-temperature resistance alloy wires and the insulating filling materials are filled inside the high-temperature resistance alloy wires.
5. The tubular heating resistor for vehicle according to claim 2, wherein the resistance heating tube (1) is fixed to the through hole of the mounting base plate (2) by laser welding (6).
6. The tube-type heating resistor for vehicle according to claim 1, wherein the mounting base plate (2) is made of corrosion-resistant metal.
7. Tubular heating resistor according to claim 1, wherein the mounting plate (2) is of a circular convex disc structure; the side edge (21) of the middle boss is sealed with the cooling system heat exchanger shell in a structure mode of being tightly attached to a plane or being capable of being nested with a sealing ring.
8. The tubular heating resistor for vehicle according to claim 1, wherein the insulator (3) is made of an electrical ceramic material; the side edge of the insulator (3) is of a corrugated structure; and the insulator (3) and the inner side of the pipe orifice of the resistance heating pipe (1) are sealed and fixed by silica gel (5).
9. The tubular heating resistor for the vehicle as claimed in claim 1, wherein one end of the leading-out rod (4) is connected with the alloy resistance wire inside the resistance heating tube (1), and the other end of the leading-out rod passes through the middle through hole of the insulator (3); the exposed part of the leading-out rod (4) is connected with an external circuit.
10. The tubular heating resistor according to claim 9, wherein the extraction rod (4) is made of stainless steel or pure nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110645981.5A CN115474299A (en) | 2021-06-10 | 2021-06-10 | Tubular heating resistor for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110645981.5A CN115474299A (en) | 2021-06-10 | 2021-06-10 | Tubular heating resistor for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115474299A true CN115474299A (en) | 2022-12-13 |
Family
ID=84365183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110645981.5A Pending CN115474299A (en) | 2021-06-10 | 2021-06-10 | Tubular heating resistor for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115474299A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792391A (en) * | 2016-03-04 | 2016-07-20 | 青岛易特优电子有限公司 | Special-tube-shaped electric heating apparatus and preparation method therefore |
| CN215268769U (en) * | 2021-06-10 | 2021-12-21 | 上海克拉电子有限公司 | Tubular heating resistor for vehicle |
-
2021
- 2021-06-10 CN CN202110645981.5A patent/CN115474299A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792391A (en) * | 2016-03-04 | 2016-07-20 | 青岛易特优电子有限公司 | Special-tube-shaped electric heating apparatus and preparation method therefore |
| CN215268769U (en) * | 2021-06-10 | 2021-12-21 | 上海克拉电子有限公司 | Tubular heating resistor for vehicle |
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