CN115835429A - Electric heating device for normal heat conduction of normal temperature heat pipe in low temperature environment - Google Patents
Electric heating device for normal heat conduction of normal temperature heat pipe in low temperature environment Download PDFInfo
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- CN115835429A CN115835429A CN202310021455.0A CN202310021455A CN115835429A CN 115835429 A CN115835429 A CN 115835429A CN 202310021455 A CN202310021455 A CN 202310021455A CN 115835429 A CN115835429 A CN 115835429A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The invention relates to the technical field of heating devices, in particular to an electric heating device for enabling a normal-temperature heat pipe to conduct heat normally in a low-temperature environment, which comprises a base, an outer shell, a heat conducting piece, a PTC (positive temperature coefficient) ceramic heating piece, a first fin group, a second fin group, a normal-temperature heat pipe and a fan assembly, wherein the heat conducting piece comprises a lower heat conducting plate and an upper heat conducting plate; the first fin group comprises a plurality of first radiating fins connected to the upper surface of the upper heat conducting plate, and the second fin group comprises a plurality of second radiating fins arranged side by side at intervals; the normal-temperature heat pipes are L-shaped and comprise horizontal pipe sections pressed in the corresponding heat conduction plates and vertical pipe sections penetrating into the second radiating fins; the fan assembly comprises a fan fixing frame and a fan, wherein the fan fixing frame and the fan are arranged on one side, back to the second fin group, of the first fin group, and the fan is used for blowing heat at the first fin group to the second fin group. The invention can realize normal work of the normal temperature heat pipe in low temperature environment, and reduce the use cost.
Description
Technical Field
The invention relates to the technical field of heating devices, in particular to an electric heating device for normal heat conduction of a normal-temperature heat pipe in a low-temperature environment.
Background
The heat pipe utilizes the phase change process of medium evaporation at the hot end and then condensation at the cold end (namely, utilizes the latent heat of evaporation and the latent heat of condensation of liquid) to quickly conduct heat. The heat pipes can be divided into low temperature heat pipes (from-273 to 0 ℃), normal temperature heat pipes (from 0 to 250 ℃), medium temperature heat pipes (from 250 to 450 ℃) and high temperature heat pipes (from 450 to 1000 ℃) according to the working temperature in the heat pipes. At present, a commonly used heat pipe is a normal-temperature heat pipe and can be used for radiating heat on an automobile, but the running environment of the automobile is complex and various, particularly in winter, the outdoor temperature in the northeast can reach minus 30 ℃ or even lower, and at the moment, the working temperature of the normal-temperature heat pipe is not reached, so that the normal-temperature heat pipe cannot be started for heat conduction normally, although the low-temperature heat pipe can be used in the extreme environment, the process of the low-temperature heat pipe is complex, the use cost is high, and the batch use of radiators on the automobile cannot be met.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an electric heating apparatus for normal heat conduction of a normal temperature heat pipe in a low temperature environment, so as to achieve normal operation of the normal temperature heat pipe in the low temperature environment and reduce use cost.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an electric heating device for normal heat conduction of a normal temperature heat pipe in a low temperature environment, comprising:
the base defines the length direction of the base as the left-right direction and the width direction of the base as the front-back direction;
the heat conducting piece comprises a lower heat conducting plate and an upper heat conducting plate which are fixed on the base;
the PTC ceramic heating piece is clamped between the lower heat conducting plate and the upper heat conducting plate, and generates heat after being electrified and transfers the heat with the lower heat conducting plate and the upper heat conducting plate;
the first fin group comprises a plurality of first radiating fins which are connected with the upper surface of the upper heat conducting plate and are arranged side by side at intervals in the left-right direction, and the first radiating fins extend along the up-down direction;
the second fin group comprises a plurality of second radiating fins which are arranged in parallel at intervals in the vertical direction, the second radiating fins extend along the left-right direction, and the second radiating fins are positioned on the front sides of the first radiating fins;
the normal-temperature heat pipes are L-shaped and comprise horizontal pipe sections and vertical pipe sections, the horizontal pipe sections are pressed in the corresponding heat conduction plates, and the vertical pipe sections penetrate into the second radiating fins;
the fan assembly comprises a fan fixing frame and a fan, the fan fixing frame is positioned on one side of the first fin group, which is back to the second fin group, and the fan is arranged on one side of the fan fixing frame, which is back to the first fin group, and is used for blowing heat at the first fin group to the second fin group;
and the outer shell is arranged on the base, and a plurality of heat dissipation holes are formed in the positions, corresponding to the first fin group, the second fin group and the normal-temperature heat pipe, of the outer shell.
The beneficial effects of the above technical scheme are: the PTC ceramic heating sheet generates heat after being electrified, the heat is transferred through the upper heat conducting plate and the lower heat conducting plate, and the horizontal pipe section of the normal-temperature heat pipe is pressed in the corresponding heat conducting plate, so that the heat generated by the PTC ceramic heating sheet can be transferred to the horizontal pipe section through the heat conducting plate at the corresponding position to heat the horizontal pipe section of the normal-temperature heat pipe; the heat is transferred to the first fin group and the second fin group through the upper heat conducting plate, and then is transferred to the vertical tube section of the normal-temperature heat pipe through the second fin group, and the fan is arranged on one side of the first fin group, which is back to the second fin group. The electric heating device can heat the normal temperature heat pipe while heating normally, ensures normal heat conduction of the normal temperature heat pipe in a low temperature environment, does not need to use a low temperature heat pipe, and saves cost
Furthermore, a plurality of upper heat pipe mounting grooves are formed in the upper surface of the lower heat conducting plate, a horizontal pipe section of the normal-temperature heat pipe is assembled in the upper heat pipe mounting grooves in an interference mode, and the upper surface of the horizontal pipe section is a plane flush with the upper surface of the lower heat conducting plate; and/or, be equipped with a plurality of heat pipe mounting grooves down on the lower surface of going up the heat-conducting plate, the horizontal pipe section interference fit of normal atmospheric temperature heat pipe is in heat pipe mounting grooves down, the lower surface of horizontal pipe section be with the plane of the lower surface parallel and level of heat-conducting plate down.
Has the advantages that: on the one hand, the horizontal pipe section's of being convenient for assembly has improved the area of contact between horizontal pipe section and heat-conducting plate and the PTC pottery piece that generates heat, and on the other hand, horizontal pipe section can directly carry out thermal transmission with the contact of PTC pottery piece that generates heat, has avoided thermal loss.
Furthermore, the upper heat pipe mounting grooves are arranged in groups, and at least two groups are arranged at intervals in the left-right direction; the lower heat pipe mounting grooves are arranged in groups, and at least two groups are arranged at intervals in the left and right direction; the upper heat pipe mounting groove group and the lower heat pipe mounting groove group are alternately arranged in the left-right direction, the normal-temperature heat pipe comprises an upper normal-temperature heat pipe and a lower normal-temperature heat pipe, the horizontal pipe section of the upper normal-temperature heat pipe is in interference fit in the lower heat pipe mounting groove, and the horizontal pipe section of the lower normal-temperature heat pipe is in interference fit in the upper heat pipe mounting groove.
Has the advantages that: the upper normal-temperature heat pipe and the lower normal-temperature heat pipe are arranged alternately from top to bottom, so that the use length of the normal-temperature heat pipes and the size of the corresponding second radiating fins can be reduced, the appearance is well-matched, and the dense feeling can be reduced.
Furthermore, at least two groups of the second fin groups are arranged at intervals in the left-right direction, and the number of the groups is equal to the sum of the number of the groups of the upper heat pipe installation groove group and the lower heat pipe installation groove group; the arrangement length of the first radiating fins in the left-right direction is not less than the sum of the arrangement lengths of the second radiating fins in each second fin group in the left-right direction.
Has the advantages that: the second fin group with proper number can be selected according to the actual installation space, and simultaneously, the fan can blow the hot air at the first fin group to the second radiating fin to ensure the heating of the vertical pipe section of the normal-temperature heat pipe, so that the normal-temperature heat pipe can be heated to the starting temperature.
Furthermore, a fin positioning cavity is defined between the fan fixing frame and each second fin group, and each first radiating fin in each first fin group is installed in the fin positioning cavity.
Has the beneficial effects that: the fan fixing frame can fix the fan and can position the first fin group, so that the whole structure is more compact, the whole size is reduced, and the installation space is saved.
Further, the fan mount includes the mounting panel, connects the riser at both ends about the mounting panel and connects the fixed plate in the riser bottom, the fan is fixed in the one side of the first fin group of mounting panel dorsad, and the position that corresponds the fan on the mounting panel is equipped with the ventilation hole of adaptation, encloses into the fin constant head tank between mounting panel and the two risers, and the fixed plate is connected with the base.
Has the beneficial effects that: simple structure and convenient fixation.
Preferably, the rear side of the first radiating fin is in abutting contact with the mounting plate, and the front side of the first radiating fin is in abutting contact with the corresponding second radiating fin.
Has the advantages that: the structure is more compact, heat can be conveniently transferred from the first fin group to the second fin group, and heat loss is avoided.
Furthermore, the bottom of the mounting plate is provided with an avoiding opening for avoiding the upper heat-conducting plate, the lower heat-conducting plate and the PTC ceramic heating sheet.
Has the advantages that: the mounting panel is direct and base fixed connection, and it is higher to connect the reliability, and the mounting panel is not direct and upper and lower heat-conducting plate contact simultaneously, can not influence the thermal transmission here.
Drawings
FIG. 1 is a schematic diagram of an electrical heating apparatus for normal heat conduction of a normal temperature heat pipe in a low temperature environment according to the present invention;
FIG. 2 is a schematic structural diagram of the electric heating apparatus for normal heat conduction of a normal temperature heat pipe in a low temperature environment of the present invention with an outer casing removed;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a top view of FIG. 2;
fig. 5 is a schematic structural view of the fan fixing bracket of fig. 2.
Reference numerals are as follows: 1-outer shell, 2-base, 3-lower heat conducting plate, 4-upper heat conducting plate, 5-first radiating fin, 6-second radiating fin, 7-fan fixing frame, 8-fan, 9-upper normal temperature heat pipe, 10-lower normal temperature heat pipe, 11-mounting plate, 12-vent hole, 13-avoidance opening, 14-vertical plate, 15-fixing plate, 16-upper heat pipe mounting groove, 17-lower heat pipe mounting groove, 18-fin positioning groove, 19-radiating hole, 20-PTC ceramic heating plate.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
The specific embodiment of the electric heating device for normal heat conduction of the normal-temperature heat pipe in the low-temperature environment comprises the following steps:
as shown in fig. 1 and fig. 2, the electric heating device for normal heat conduction of a normal temperature heat pipe in a low temperature environment includes a base 2, an outer casing 1 fixed on the base, and a heat conducting member, a PTC ceramic heating sheet 20, a first fin set, a second fin set, the normal temperature heat pipe, and a fan assembly installed inside the outer casing 1.
Specifically, the electric heating device is installed at the underframe of the seat of the passenger car when in use, is used for heating the passenger car, and is horizontally fixed in the mode shown in figure 1 when in installation. However, in the present embodiment, for convenience of description, the longitudinal direction of the base 2 is defined as the left-right direction and the width direction of the base 2 is defined as the front-back direction with respect to the direction shown in fig. 2. It should be understood that, in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In this embodiment, the heat-conducting member comprises a lower heat-conducting plate 3 and an upper heat-conducting plate 4 fixed to the base 2. In order to be beneficial to heat transfer, the lower heat-conducting plate 3 and the upper heat-conducting plate 4 both adopt aluminum plates, so that both heat conductivity and light weight can be considered. The PTC ceramic heating sheet 20 is a conventional one, and generates heat after being energized. The PTC ceramic heating sheet 20 is sandwiched between the lower heat-conducting plate 3 and the upper heat-conducting plate 4, and is attached to the lower heat-conducting plate 3 and the upper heat-conducting plate 4. Go up the heat-conducting plate 4 and wear to be equipped with the bolt down between the heat-conducting plate 3, play the effect of fixing last heat-conducting plate 4 and heat-conducting plate 3 down, also press from both sides PTC pottery piece 20 tightly simultaneously. The heat generated from the PTC ceramic heat generating sheet 20 can be transferred to the lower heat conductive plate 3 and the upper heat conductive plate 4.
As shown in fig. 2, 3 and 4, the upper surface of the lower heat-conducting plate 3 is provided with a plurality of upper heat pipe installation grooves 16 arranged at intervals in the left-right direction, and the lower surface of the upper heat-conducting plate 4 is provided with a plurality of lower heat pipe installation grooves 17. In this embodiment, the upper heat pipe mounting grooves 16 are arranged in groups, and three groups are arranged at intervals in the left-right direction, each group including four upper heat pipe mounting grooves 16 arranged at intervals; the lower heat pipe mounting grooves 17 are arranged in groups, three groups are arranged in the left-right direction at intervals, and each group comprises four lower heat pipe mounting grooves 17 arranged at intervals. The upper heat pipe mounting groove group and the lower heat pipe mounting groove group are alternately arranged in the left and right directions. The second fin groups are provided with six groups which respectively correspond to the lower heat pipe installation groove groups and the upper heat pipe installation groove groups, each second fin group comprises a plurality of second radiating fins 6 which are arranged in parallel at intervals in the vertical direction, and the second radiating fins 6 in each group are connected together.
In this embodiment, the normal temperature heat pipe is divided into an upper normal temperature heat pipe 9 and a lower normal temperature heat pipe 10 according to the installation position, and both the upper normal temperature heat pipe 9 and the lower normal temperature heat pipe 10 are bent into an L shape and both include a horizontal pipe section and a vertical pipe section. The horizontal pipe sections of the lower normal temperature heat pipe 10 are assembled in the corresponding upper heat pipe mounting grooves 16 in an interference fit manner in a mechanical press-fitting manner, the upper surface of the horizontal pipe section of the lower normal temperature heat pipe 10 is a plane flush with the upper surface of the lower heat conducting plate 3, and at this time, the horizontal pipe section of the lower normal temperature heat pipe 10 is attached to the lower surface of the PTC ceramic heating sheet 20. The horizontal pipe sections of the upper normal temperature heat pipe 9 are assembled in the corresponding lower heat pipe mounting grooves 17 in an interference fit manner in a mechanical press-fitting manner, the lower surface of the horizontal pipe section of the upper normal temperature heat pipe 9 is a plane flush with the lower surface of the upper heat conducting plate 43, and the horizontal pipe section of the upper normal temperature heat pipe 9 is attached to the upper surface of the PTC ceramic heating sheet 20.
The vertical tube sections of the upper normal temperature heat tube 9 and the lower normal temperature heat tube 10 respectively penetrate into the corresponding second radiating fins 6, and are welded with the second radiating fins 6 through solder paste, so that the second radiating fins 6 are fixed. In addition, during actual installation, the number of the upper normal temperature heat pipes 9 or the lower normal temperature heat pipes 10 penetrating through the second fin group can be adaptively adjusted according to the size of the second heat dissipation fin 6.
As shown in fig. 2 and 4, the fan assembly includes a fan fixing frame 7 and a fan 8, the fan fixing frame 7 is located on a side of the first fin group facing away from the second fin group, and the fan 8 is installed on a side of the fan fixing frame 7 facing away from the first fin group and used for blowing heat at the first fin group to the second fin group.
As shown in fig. 5, the fan fixing frame 7 includes a mounting plate 11, a vertical plate 14 connected to left and right ends of the mounting plate 11, and a fixing plate 15 connected to a bottom end of the vertical plate 14, and the fixing plate 15 is connected to the base 2. The number of the fans 8 is four, the fans are all fixed on one side, back to the first fin group, of the mounting plate 15 through bolts, and the positions, corresponding to the fans 8, of the mounting plate 15 are provided with adaptive ventilation holes 12. Of course, in actual use, the number of the fans 8 to be provided may be adjusted as appropriate according to the particular size of use. The bottom of the mounting plate 15 is provided with an avoiding opening 13 for avoiding the upper heat-conducting plate 4, the lower heat-conducting plate 3 and the PTC ceramic heating sheet 20, and a certain gap is reserved between the avoiding opening and the upper heat-conducting plate 4. Certain gaps are also left among the vertical plate 14, the upper heat-conducting plate 4, the lower heat-conducting plate 3 and the PTC ceramic heating sheet 20.
The mounting plate 15 and the two vertical plates 14 define a fin positioning groove 18, and the second fin group is opposite to the groove opening of the fin positioning groove 18, so that a fin positioning cavity is defined between the second fin group and the fan fixing frame 7. The first fin group is installed in the fin positioning cavity and comprises a plurality of first radiating fins 5 which are connected to the upper surface of the upper heat conducting plate 4 and are arranged side by side at intervals in the left-right direction, the first radiating fins 5 extend in the up-down direction, and the arrangement length of the first radiating fins 5 in the left-right direction is greater than the sum of the arrangement lengths of the second radiating fins 6 in each second fin group in the left-right direction. In order to improve the heat conduction effect, as shown in fig. 4, in this embodiment, the rear side of the first heat dissipation fin 5 is in abutting contact with the mounting plate 15, and the front side of the first heat dissipation fin 5 is in abutting contact with the corresponding second heat dissipation fin 6, that is, the first heat dissipation fin 5 is sandwiched between the mounting plate 15 and the second fin group, so that the whole electric heating device has a more compact structure, and the heat is collected more, thereby facilitating uniform discharge.
As shown in fig. 1, a plurality of heat dissipation holes 19 are formed in the outer casing 1 at positions corresponding to the first fin group, the second fin group, and each of the normal temperature heat pipes, and the heat dissipation holes 19 can dissipate heat inside the outer casing 1.
In practical use, the PTC ceramic heating elements of the electric heating device of the present invention are connected in parallel, are 600V dc high voltage, and are connected to the interior of the vehicle by a high voltage wire harness. The fans are connected in parallel, and the 24V direct-current low-voltage power supply in the vehicle is connected with the interior of the vehicle through an Anpu plug-in.
The working principle of the electric heating device of the invention is as follows: under the low-temperature environment, the PTC ceramic heating sheet 22 is electrified, the PTC ceramic heating sheet 20 generates heat after being electrified, the heat is transferred through the upper heat conduction plate 4 and the lower heat conduction plate 3, and because the horizontal pipe section of the upper normal-temperature heat pipe 9 and the horizontal pipe section of the lower normal-temperature heat pipe are both attached to the PTC ceramic heating sheet 22, the heat generated by the PTC ceramic heating sheet 22 can be directly transferred to each horizontal pipe section to heat the horizontal pipe sections; in addition, heat is transferred to the first fin group and the second fin group through the upper heat conducting plate 4, and then is transferred to the vertical tube sections of the upper normal temperature heat pipe 9 and the lower normal temperature heat pipe 10 through the second fin group, and because the fan 8 is arranged on one side of the first fin group back to the second fin group, when the fan 8 is turned on, the fan 8 can blow heat at the first radiating fins 5 to the second radiating fins 6, the vertical tube sections are further heated by the hot air, the two heat are superposed, and finally the normal temperature heat pipe can reach a normal starting temperature in a low temperature environment to conduct heat normally.
The electric heating device can heat each normal temperature heat pipe while heating normally, ensures the normal operation of each normal temperature heat pipe in a low temperature environment, does not need to use a low temperature heat pipe, and saves the cost.
In other embodiments, only the lower heat pipe installation groove may be disposed on the lower surface of the upper heat conducting plate, at this time, the horizontal pipe sections of all the normal temperature heat pipes are interference-assembled in the lower heat pipe installation groove, and the lower surface of the horizontal pipe section is a plane flush with the lower surface of the upper heat conducting plate. Of course, the upper heat pipe installation groove can be only arranged on the upper surface of the lower heat conduction plate, at the moment, the horizontal pipe sections of all the normal-temperature heat pipes are assembled in the upper heat pipe installation groove in an interference mode, and the upper surfaces of the horizontal pipe sections are flat surfaces which are flush with the upper surface of the lower heat conduction plate.
In other embodiments, the upper and lower heat-conducting plates may be copper plates, without taking the weight of the device into account.
In other embodiments, the first fin group and the second fin group can be arranged at intervals with the fan fixing frame.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. An electric heating device for normal heat conduction of a normal temperature heat pipe in a low temperature environment is characterized by comprising:
the base defines the length direction of the base as the left-right direction and the width direction of the base as the front-back direction;
the heat conducting piece comprises a lower heat conducting plate and an upper heat conducting plate which are fixed on the base;
the PTC ceramic heating piece is clamped between the lower heat conducting plate and the upper heat conducting plate, and generates heat after being electrified and transfers the heat with the lower heat conducting plate and the upper heat conducting plate;
the first fin group comprises a plurality of first radiating fins which are connected with the upper surface of the upper heat conducting plate and are arranged side by side at intervals in the left-right direction, and the first radiating fins extend along the up-down direction;
the second fin group comprises a plurality of second radiating fins which are arranged in parallel at intervals in the vertical direction, the second radiating fins extend along the left-right direction, and the second radiating fins are positioned on the front sides of the first radiating fins;
the normal-temperature heat pipes are L-shaped and comprise horizontal pipe sections and vertical pipe sections, the horizontal pipe sections are pressed in the corresponding heat conduction plates, and the vertical pipe sections penetrate into the second radiating fins;
the fan component comprises a fan fixing frame and a fan, the fan fixing frame is positioned on one side of the first fin group, which is back to the second fin group, and the fan is arranged on one side of the fan fixing frame, which is back to the first fin group and used for blowing heat at the first fin group to the second fin group;
and the outer shell is arranged on the base, and a plurality of heat dissipation holes are formed in the positions, corresponding to the first fin group, the second fin group and the normal-temperature heat pipe, of the outer shell.
2. The electric heating device for normal temperature heat pipe to conduct heat normally in low temperature environment as claimed in claim 1, wherein the upper surface of the lower heat conducting plate is provided with a plurality of upper heat pipe mounting grooves, the horizontal pipe section of the normal temperature heat pipe is assembled in the upper heat pipe mounting grooves in an interference manner, and the upper surface of the horizontal pipe section is a plane flush with the upper surface of the lower heat conducting plate;
and/or a plurality of lower heat pipe mounting grooves are formed in the lower surface of the upper heat conducting plate, the horizontal pipe section of the normal-temperature heat pipe is assembled in the lower heat pipe mounting grooves in an interference mode, and the lower surface of the horizontal pipe section is a plane parallel to and level with the lower surface of the lower heat conducting plate.
3. The electric heating device for normal temperature heat pipe to conduct heat normally in low temperature environment as claimed in claim 2, wherein the upper heat pipe mounting grooves are arranged in groups, and at least two groups are arranged at intervals in the left-right direction; the lower heat pipe mounting grooves are arranged in groups, and at least two groups are arranged at intervals in the left and right direction; the upper heat pipe mounting groove group and the lower heat pipe mounting groove group are alternately arranged in the left-right direction, the normal-temperature heat pipe comprises an upper normal-temperature heat pipe and a lower normal-temperature heat pipe, the horizontal pipe section of the upper normal-temperature heat pipe is in interference fit in the lower heat pipe mounting groove, and the horizontal pipe section of the lower normal-temperature heat pipe is in interference fit in the upper heat pipe mounting groove.
4. An electric heater unit according to claim 3, wherein the second fin groups are arranged in at least two groups at intervals in the left-right direction, and the number of the groups is equal to the sum of the groups of the upper heat pipe mounting groove group and the lower heat pipe mounting groove group; the arrangement length of the first radiating fins in the left-right direction is not less than the sum of the arrangement lengths of the second radiating fins in each second fin group in the left-right direction.
5. The electric heating device for normal temperature heat pipe to conduct heat normally under low temperature environment as claimed in any one of claims 1 to 4, wherein a fin positioning cavity is defined between the fan fixing frame and each second fin group, and each first heat dissipating fin in the first fin group is installed in the fin positioning cavity.
6. The electric heating device of claim 5, wherein the fan fixing frame comprises a mounting plate, vertical plates connected to the left and right ends of the mounting plate, and a fixing plate connected to the bottom ends of the vertical plates, the fan is fixed to one side of the mounting plate, which faces away from the first fin group, the position of the mounting plate corresponding to the fan is provided with an adaptive ventilation hole, a fin positioning groove is defined between the mounting plate and the two vertical plates, and the fixing plate is connected to the base.
7. The electric heating apparatus according to claim 6, wherein the rear side of the first heat dissipating fin abuts against the mounting plate, and the front side of the first heat dissipating fin abuts against the corresponding second heat dissipating fin.
8. The electric heating apparatus for normal heat conduction in a low temperature environment of a warm heat pipe according to claim 6, wherein the bottom of the mounting plate is provided with an avoiding opening for avoiding the upper heat-conducting plate, the lower heat-conducting plate and the PTC ceramic heat generating sheet.
9. The electric heating device for normal heat conduction of a normal-temperature heat pipe in a low-temperature environment according to any one of claims 1 to 4, wherein the lower heat-conducting plate and the upper heat-conducting plate are both aluminum plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310021455.0A CN115835429A (en) | 2023-01-07 | 2023-01-07 | Electric heating device for normal heat conduction of normal temperature heat pipe in low temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310021455.0A CN115835429A (en) | 2023-01-07 | 2023-01-07 | Electric heating device for normal heat conduction of normal temperature heat pipe in low temperature environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115835429A true CN115835429A (en) | 2023-03-21 |
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ID=85520313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310021455.0A Pending CN115835429A (en) | 2023-01-07 | 2023-01-07 | Electric heating device for normal heat conduction of normal temperature heat pipe in low temperature environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115835429A (en) |
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2023
- 2023-01-07 CN CN202310021455.0A patent/CN115835429A/en active Pending
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