CN201252353Y - Heat dissipating device of outdoor electric switch box - Google Patents
Heat dissipating device of outdoor electric switch box Download PDFInfo
- Publication number
- CN201252353Y CN201252353Y CNU2008201601250U CN200820160125U CN201252353Y CN 201252353 Y CN201252353 Y CN 201252353Y CN U2008201601250 U CNU2008201601250 U CN U2008201601250U CN 200820160125 U CN200820160125 U CN 200820160125U CN 201252353 Y CN201252353 Y CN 201252353Y
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- type semiconductor
- semiconductor element
- heat dissipating
- electronic cooling
- casing
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Abstract
The utility model discloses a heat dissipating device of outdoor electric switch box, which comprises a heat dissipating plate (10) and an electric refrigerating module (11), wherein a venthole (9) is opened on the rear wall of a box body (8) of the electric switch box, the rear wall of the box body (8) is fixedly connected with the heat dissipating plate and contacted with the venthole (9), a large-power electrical apparatus element installed in the box body is fixedly connected on the heat dissipating plate (10), and the electric refrigerating module (11) in the box body is installed on the heat dissipating plate (10). The utility model has excellent refrigerating effect, and is convenient for automatic control.
Description
Technical field
The utility model relates to heat abstractor, is specifically related to the heat abstractor of outdoor distributing box.
Background technology
Logical urban network restructuring in a few years, the power circuit of arterial street all adopts underground cable line to lay at present, how electric energy is distributed, switching and be delivered to each user, then all kinds of cable distribution boxes must be installed on cable line.Distribution box generally is installed in the open air, distribution box inner the electric elements module and the various discrete electronic devices and components of integrated more much caloric values usually, these electric elements are worked in hot environment for a long time, not only can wear out in advance, reduction of service life, and, in case the distribution box internal temperature is too high, will have a strong impact on control precision and control stability, even cause electric elements to burn, cause unexpected the shut-down, especially switch trip phenomenon in the distribution box can frequently occur season, influenced power supply reliability at summer high temperature.The existing measure of taking is: in peak of power consumption period, chamber door is opened, with electric fan or cabinet fan is installed is lowered the temperature, this mode has the following disadvantages:
1. easily foreign matters such as dust, chip are brought in the regulator cubicle, caused short circuit;
2. dangerous, cause attendant's electric shock easily;
3. thermoregulation effect is uncontrollable;
4. the weak effect that cools does not especially almost have cooling-down effect when summer high temperature;
5. clean and maintenance expends a large amount of manpower and materials, can only be to cure the symptoms, not the disease.
Summary of the invention
The purpose of this utility model is: a kind of heat abstractor of outdoor distributing box is provided, and good refrigeration effect is convenient to automation control.
Technical solution of the present utility model is: this heat abstractor comprises heating panel and electronic cooling module, rear wall at the casing of distribution box is opened ventilation hole, at the affixed heating panel contact of the rear wall of casing ventilation hole, the high-power electric appliance element that is installed in the casing is fixed on the heating panel, and the electronic cooling module that is positioned at casing is installed on the heating panel.
In the heat abstractor of outdoor distributing box of the present utility model, the electronic cooling module is made up of substrate, flow guide bar, N type semiconductor element, P type semiconductor element, power supply, between two substrates respectively by flow guide bar series connection N type semiconductor element and P type semiconductor element, the power supply of wherein connecting on the flow guide bar.
The electronic cooling module (TE) also be thermoelectric module, is a kind of heat pump, and direct current is adopted in the work of electronic cooling module, and it not only can freeze but also can heat, and decides by the polarity that changes direct current and realize refrigeration or heating on refrigeration module.When a N type semiconductor element and P type semiconductor element be coupled to galvanic couple to the time, connect direct current, electric current flows to P type semiconductor element absorption heat by the N type semiconductor element becomes cold junction, flowing to N type semiconductor element release heat by the P type semiconductor element becomes the hot junction, and the heat absorption and the size of heat release size and the N, P semiconductor element logarithm by electric current decides.
The utlity model has following advantage: 1, heating panel can guarantee the sealing of distribution box, can carry out efficiently radiates heat again, ensures distribution box normally operation under outdoor changeable natural conditions; 2, the electronic cooling modular structure is small and exquisite, easy disassembling, and cost is low, and is effective; 3,, there are not pollutant sources without any need for cold-producing medium; 4, solid piece part does not have the vibrating noise life-span long during work; 5, the electronic cooling module can be freezed and can be heated, and can replace discrete heating system and refrigerating system; 6, the electronic cooling module is an electric current transducing matrix part, by the control of input current, can realize high-precision temperature control, adds temperature detection and control device, is easy to realize remote control, program control, computer control, is convenient to form automatic control system; 7, electronic cooling module thermal inertia is very little, and the cooling and warming time is very fast, and under the situation of the good cold junction zero load of hot-side heat dissipation, energising was less than one minute, and cooling piece just can reach maximum temperature difference; 8, the temperature range of electronic cooling module can be realized for 130 ℃ to subzero temperature from 90 ℃ of positive temperature.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the monolithic electronic cooling modular structure schematic diagram of Fig. 1.
Among the figure: 1,2 substrates, 3,4 flow guide bars, 5N N-type semiconductor N element, 6P N-type semiconductor N element, 7 power supplys, 8 casings, 9 ventilation holes, 10 heating panels, 11 electronic cooling modules
Embodiment
As shown in Figure 1, this heat abstractor comprises heating panel 10 and electronic cooling module 11, rear wall at the casing 8 of distribution box has ventilation hole 9, at the affixed heating panel 10 contact ventilation holes 9 of the rear wall of casing, the high-power electric appliance element that is installed in the casing is fixed on the heating panel 10, and the electronic cooling module 11 that is positioned at casing is installed on the heating panel 10.
As shown in Figure 2, in the heat abstractor of outdoor distributing box of the present utility model, electronic cooling module 11 is made up of substrate 1,2, flow guide bar 3,4, N type semiconductor element 5, P type semiconductor element 6, power supply 7, between two substrates 1,2, pass through flow guide bar 3,4 series connection N type semiconductor element 5 and P type semiconductor elements 6, wherein series connection power supply 7 on the flow guide bar 4.
The electronic cooling module (TE) also be thermoelectric module, is a kind of heat pump, and direct current is adopted in the work of electronic cooling module, and it not only can freeze but also can heat, and decides by the polarity that changes direct current and realize refrigeration or heating on refrigeration module.When a N type semiconductor element and P type semiconductor element be coupled to galvanic couple to the time, connect direct current, electric current flows to P type semiconductor element absorption heat by the N type semiconductor element becomes cold junction, flowing to N type semiconductor element release heat by the P type semiconductor element becomes the hot junction, and the heat absorption and the size of heat release size and the N, P semiconductor element logarithm by electric current decides.
Claims (2)
1. the heat abstractor of outdoor distributing box, it is characterized in that: this heat abstractor comprises heating panel (10) and electronic cooling module (11), rear wall at the casing (8) of distribution box has ventilation hole (9), the affixed heating panel of rear wall (10) contact ventilation hole (9) at casing (8), the high-power electric appliance element that is installed in the casing is fixed on the heating panel (10), and the electronic cooling module (11) that is positioned at casing is installed on the heating panel (10).
2. the heat abstractor of outdoor distributing box according to claim 1, it is characterized in that: the electronic cooling module is made up of substrate (1,2), flow guide bar (3,4), N type semiconductor element (5), P type semiconductor element (6), power supply (7), respectively by flow guide bar (3,4) series connection N type semiconductor element (5) and P type semiconductor element (6), wherein a flow guide bar (4) is gone up series connection power supply (7) between two substrates (1,2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201601250U CN201252353Y (en) | 2008-09-27 | 2008-09-27 | Heat dissipating device of outdoor electric switch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201601250U CN201252353Y (en) | 2008-09-27 | 2008-09-27 | Heat dissipating device of outdoor electric switch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201252353Y true CN201252353Y (en) | 2009-06-03 |
Family
ID=40748016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201601250U Expired - Fee Related CN201252353Y (en) | 2008-09-27 | 2008-09-27 | Heat dissipating device of outdoor electric switch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201252353Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390285A (en) * | 2018-03-17 | 2018-08-10 | 刘冲 | A kind of efficient electrical cabinet of heat dissipation |
-
2008
- 2008-09-27 CN CNU2008201601250U patent/CN201252353Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108390285A (en) * | 2018-03-17 | 2018-08-10 | 刘冲 | A kind of efficient electrical cabinet of heat dissipation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20091027 |