CN201583029U - Underfloor sensor of solar heater - Google Patents
Underfloor sensor of solar heater Download PDFInfo
- Publication number
- CN201583029U CN201583029U CN2009202948183U CN200920294818U CN201583029U CN 201583029 U CN201583029 U CN 201583029U CN 2009202948183 U CN2009202948183 U CN 2009202948183U CN 200920294818 U CN200920294818 U CN 200920294818U CN 201583029 U CN201583029 U CN 201583029U
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- Prior art keywords
- metal connector
- stainless steel
- level
- shrinkable
- water
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to an underfloor sensor of a solar heater, which comprises a circuit board and a sleeve component. The underfloor sensor is characterized by also comprising a fixing nut; a blocking shoulder is arranged at one end of the fixing nut; the fixing nut is fixedly connected with an outer-layer stainless steel pipe the through a metal connector; a screw which can penetrate through the central hole of the fixing nut is formed at one end of the metal connector; a stepped shaft is formed at the other end of the metal connector; the major diameter part of the stepped shaft is integrally formed with the screw; the major diameter part is inserted into the outer-layer stainless steel pipe; a ring-shaped lug boss, the bottom of which is propped against the blocking shoulder of the fixing nut, is also formed on the large diameter part and the screw at the interface along the circumference; and a through hole is arranged in the metal connector along the length direction. Compared with the prior art, the underfloor sensor has the advantages that the fixing nut can be directly and helically connected with the bottom of a water tank, the sleeve component, the metal connector and the outer-layer stainless steel pipe can be conveniently connected into a whole body without bolts or welding, water can also be effectively prevented from leaking from the bottom of the water tank, and the service life of the sensor is prolonged.
Description
Technical field
The utility model relates to a kind of sensor of solar water heater.
Background technology
To be the energy that utilizes the sun be heated to the device of high-temperature with water from low temperature with solar water heater, is a kind of heat energy product.Common solar water heater generally is made up of all-glass vacuum thermal-collecting tube, storage tank, support and related accessories, water heater relies on glass heat-collecting vacuum tube that solar energy is converted to heat energy, thermal-collecting tube is subjected to solar radiation surface temperature height, thermal-collecting tube opaco temperature is low, and water just produces temperature difference reaction in the pipe, the principle of utilizing hot water come-up cold water to sink makes the water generates microcirculation and reaches required hot water.
Usually, in solar water heater, all be provided with water-temperature water-level sensor and detect water tank temperature and water level height, and then the heating-up temperature and the heat time heating time of control water heater.If any the patent No. is that the Chinese utility model patent " water-temperature water-level sensor on a kind of solar water heater " of ZL200820204172.0 then discloses a kind of like this sensor, it comprises the water-temperature water-level sensor circuit that is connected with sensor, described water-temperature water-level sensor circuit is enclosed in the insulating resin, the outer spacer sleeve of described insulating resin is equipped with the stainless steel sleeve pipe that is connected with the water-temperature water-level sensor circuit, is connected with the silica gel circle between described adjacent two stainless steel sleeve pipes.But above-mentioned patent when circuit board breaks down when maybe needing to change, just must be destroyed whole epoxy resin layer because whole sensor circuit is enclosed in the insulating resin, wastes time and energy maintenance difficult; In addition, traditional solar energy sensor mostly is inserts water tank when mounted from the side, and not only inconvenience but also not attractive in appearance is crossed when low when water level, might can't measure, and can not guarantee the accuracy of measuring.
The utility model content
Technical problem to be solved in the utility model is a kind of long service life to be provided at above-mentioned prior art present situation, to install more convenient and can effectively to prevent the sensor for solar water heater that sealing oozes out from water tank bottom.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this bottom type sensor for solar water heater includes
Circuit board is packaged with the water-level and water-temperature control circuit that is electrically connected with cable tail, and the top of this circuit board connects the heat conduction copperhead, also is connected with water level resistance and NTC temperature detecting resistance on this circuit board; And
Thimble assembly, include internal layer copper pipe, the heat-shrinkable T bush between adjacent described internal layer copper pipe that the compartment of terrain is socketed in described circuit board outside and be socketed in outer stainless steel tube outside the described heat-shrinkable T bush, described internal layer copper pipe and described water-level and water-temperature control circuit are connected and form level electrode;
It is characterized in that: also include a hold-down nut that can be installed on the water tank bottom of solar water heater, one end of this hold-down nut has the annular shoulder block that inwardly stretch in the footpath, is fixedly linked by a metal connector as public pole between this hold-down nut and the outer stainless steel tube;
Wherein, one capitiform of described metal connector becomes can pass the screw rod of described hold-down nut centre bore, the other end of this metal connector forms the multidiameter that includes large-diameter portion and minor diameter part, the large-diameter portion of this multidiameter and described screw rod are one-body molded, described large-diameter portion insert within the described outer stainless steel tube and and the pore size of this skin stainless steel tube suitable, the annular boss that described large-diameter portion and described screw rod offset along the shoulder block that circumferentially also is formed with bottom and described hold-down nut at interface, and, this metal connector offers through hole along its length, and described circuit board passes described through hole and realizes and being electrically connected of described cable tail.
In order further to improve the support strength and the corrosion resistance of sensor, thimble assembly of the present invention adopts the multiple layer of copper tubular construction, as preferably, described thimble assembly also includes inner layer stainless steel tube, described inner layer stainless steel tube is set in outside the described internal layer copper pipe and with described water-level and water-temperature control circuit and is connected, and connects by described heat-shrinkable T bush between the described time adjacent internal layer copper pipe; And, also be arranged with the middle level copper pipe outside the described heat-shrinkable T bush, be arranged with outer heat-shrinkable T bush again outside the copper pipe of described middle level.
In order to improve the accuracy of measurement, satisfy measurement demand to different water levels, described thimble assembly can be designed to multistage level electrode (secondary or more than the secondary), as preferably, described thimble assembly adopts the level Four level electrode, wherein, be first order level electrode between adjacent two the described outer heat-shrinkable T bush near described metal connector setting, described copperhead is a fourth stage level electrode.
For the ease of the connection between outer stainless steel tube and the base, multidiameter is made in described metal connector other end, outer stainless steel tube can be resisted against on the step surface of multidiameter, do not need the screw just can the outer stainless steel tube of fastening installation, as preferably, be positioned at the adapter sleeve that also is socketed with the little neck insertion that can supply described metal connector outside the outer heat-shrinkable T bush on the described first order level electrode, the big neck of the bottom of this adapter sleeve and described metal connector and the boundary step surface of minor diameter part offset.So, the little neck of metal connector inserts in the adapter sleeve of the pairing outer heat-shrinkable T bush of first order level electrode, make and the more reliable and sealing of connection between metal connector and the outer stainless steel tube also can make things convenient for the assembling between metal connector and the outer stainless steel tube to connect.
In order further to improve the sealing that connects, anti-sealing is from the junction seepage of metal connector and base, also is arranged with a sealing rubber ring that offsets with the annular boss top of this metal connector outside the large-diameter portion of described metal connector.
Compared with prior art, advantage of the present utility model is: the hold-down nut that has shoulder block by an end is realized the installation of sensor at water tank bottom, and by the attaching parts of a metal connector as realization hold-down nut and outer stainless steel tube, this metal connector one end is the screw rod that has through hole, the other end is to realize the multidiameter that no screw is pegged graft with outer stainless steel tube, between the large-diameter portion of multidiameter and screw rod, also be provided with annular boss, and, be encapsulated in circuit board in the outer stainless steel tube and can also pass metal connector and be electrically connected with the sensor external cable tail.
When mounted, water tank bottom is provided with the threaded portion that can be threaded with the hold-down nut realization, hold-down nut directly spiral is connected water tank bottom, need not to adopt screw or welding just can very easily thimble assembly, metal connector and outer stainless steel tube be connected as one, operate more simple, connect more convenient, can direct supporting installation when the solar water heater complete machine dispatches from the factory, improved the accuracy of detection of sensor; And, owing to respectively be formed with step surface between screw rod, annular boss and the multidiameter of metal connector, can play anti-sealing effectively from bottom leaky, improve the security reliability and the service life of sensor; In addition, metal connector of the present utility model also uses as public electrode simultaneously, and overall structure is compact more, has simplified circuit structure, makes things convenient for installation and maintenance.
Description of drawings
Fig. 1 is the perspective view of the utility model embodiment.
Fig. 2 is the three-dimensional exploded view of the utility model embodiment.
Fig. 3 is the sectional arrangement drawing of the utility model embodiment.
Fig. 4 is the metal connector structure cutaway view of the utility model embodiment.
Fig. 5 is the partial perspective cutaway view that the hold-down nut of the utility model embodiment is connected with metal connector.
Fig. 6 is the partial perspective cutaway view that the fourth stage level electrode of the utility model embodiment is connected with copperhead.
Fig. 7 is the level electrode structural representation of the utility model embodiment.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 7, be specific embodiment of the utility model, this sensor is one can be directly installed on the bottom type sensor of solar water heater water tank bottom, this sensor includes hold-down nut 1, the annular shoulder block 11 that one end of this hold-down nut 1 is stretched in having radially, be provided with internal thread within the hold-down nut 1, also include the cable tail 2 that links to each other with sensor body, the outer cover of cable tail 2 is provided with cable sleeve 8, cable tail 2 and circuit board 3 are electrically connected, this circuit board 3 is one to be packaged with the printed board of water-level and water-temperature control circuit, the welded top of circuit board 3 has a heat conduction copperhead 31, also is welded with NTC resistance (negative tempperature coefficient thermistor) and four water level resistance on the circuit board 3;
Wherein, the compartment of terrain is arranged with internal layer copper pipe 41 and inner layer stainless steel tube 42 outside the circuit board 3, inner layer stainless steel tube 42 is set in outside the internal layer copper pipe 41, connect by heat-shrinkable T bush 43 between the internal layer adjacent stainless steel tube 42, and, internal layer copper pipe 41 and inner layer stainless steel tube 42 be welded on respectively on the circuit board 3 and and the water-level and water-temperature control circuit be connected and form level electrode; For support force that further strengthens sensor and the resistance to corrosion that improves circuit board, outside heat-shrinkable T bush 43, also be socketed with middle level copper pipe 44, be socketed with outer heat-shrinkable T bush 45 outside the middle level copper pipe 44 again;
Present embodiment has level Four level electrode (also can adopt six grades of level electrodes), the initialization circuit plate is first order level electrode A near an end of metal connector 6, the end that circuit board 3 is connected with copperhead 31 is fourth stage level electrode D, between first order level electrode A and fourth stage level electrode D, be followed successively by second level level electrode B and the 3rd utmost point level electrode C, between two adjacent level electrodes by from-inner-to-outer be set in outside the circuit board 3 internal layer copper pipe 41, inner layer stainless steel tube 42, heat-shrinkable T bush 43, middle level copper pipe 44 and outer heat-shrinkable T bush 45 and the thimble assembly formed separates, the outside of level Four level electrode also is socketed with an outer stainless steel tube 5 jointly, this skin stainless steel tube 5 is concordant with heat conduction copperhead 31, outer stainless steel copper pipe 5 not only plays the effect of protection level electrode, also plays with hold-down nut 1 effect that is connected is installed;
Because the structure that the circuit board 3 of present embodiment has adopted the multilayer copper pipe to coat; make the support of whole sensor be not easy distortion more effectively; and; what the heat-shrinkable T bush 43 of present embodiment between inner layer stainless steel tube 42 and middle level copper pipe 44 adopted is the double wall heat Heat-Shrinkable Tubings; except that the insulating protection that the ordinary hot Heat-Shrinkable Tubings is provided; also can provide functions such as waterproof, protection against the tide, seal protection and against shock, for circuit board provides better anti-corrosion protection.
Outer stainless steel tube 5 circumferentially offers inlet opening 51 respectively on the edge, position near top and bottom, between outer stainless steel tube and hold-down nut 1, also be provided with a metal connector 6 as public pole, one capitiform of this metal connector 6 becomes screw rod 61, screw rod 61 can pass the cable tail 2 that is electrically connected with circuit board 3, the other end of metal connector 6 forms the multidiameter that includes large-diameter portion 62 and minor diameter part 63, and the large-diameter portion 62 and the screw rod 61 of this multidiameter are one-body molded;
And, large-diameter portion 62 insert within the outer stainless steel tube 5 and and the pore size of this skin stainless steel tube suitable, large-diameter portion 62 and screw rod 61 circumferentially also are formed with annular boss 64 on the interface edge, the annular shoulder block 11 of the bottom of this annular boss 64 and hold-down nut 1 one ends offsets, also be socketed with one and the O shape sealing rubber ring 7 that offsets of the top of annular boss 64 on the large-diameter portion 62 of metal connector 6, sealing rubber ring 7 adopts high-temperature resistant rubber, heatproof can reach 150 degree, when sensor was installed on the water tank, the annular boss 64 of metal connector 6 just can upwards be pushed down sealing rubber ring 7 and prevent downward infiltration;
Present embodiment is owing to adopted multilayer copper pipe and stainless steel tube technology, make sensor that good support strength and decay resistance be arranged, and double-deck elevated temperature heat Heat-Shrinkable Tubings technology and sealing rubber ring have been adopted, can guarantee that sensor does not inwardly reach downward infiltration, and sensor adopts hold-down nut 1 to be connected with the level Four level electrode, thereby installs and uses when making things convenient for water heater complete system plant to dispatch from the factory.
Claims (5)
1. a bottom type sensor for solar water heater includes
Circuit board (3) is packaged with and water-level and water-temperature control circuit that cable tail (2) is electrically connected, and the top of this circuit board (3) connects heat conduction copperhead (31), also is connected with water level resistance and NTC temperature detecting resistance on this circuit board (3); And
Thimble assembly, include the compartment of terrain and be socketed in the outside internal layer copper pipe (41) of described circuit board (3), be positioned at the heat-shrinkable T bush (43) between the adjacent described internal layer copper pipe (41) and be socketed in outer stainless steel tube (5) outside the described heat-shrinkable T bush (43), described internal layer copper pipe (41) and described water-level and water-temperature control circuit are connected and form level electrode;
It is characterized in that: also include a hold-down nut (1) that can be installed on the water tank bottom of solar water heater, one end of this hold-down nut (1) has the annular shoulder block (11) that inwardly stretch in the footpath, is fixedly linked by a metal connector as public pole (6) between this hold-down nut (1) and the outer stainless steel tube (5);
Wherein, one capitiform of described metal connector (6) becomes can pass the screw rod (61) of described hold-down nut (1) centre bore, the other end of this metal connector (6) forms the multidiameter that includes large-diameter portion (62) and minor diameter part (63), large-diameter portion of this multidiameter (62) and described screw rod (61) are one-body molded, described large-diameter portion (62) insert within the described outer stainless steel tube (5) and and the pore size of this skin stainless steel tube (5) suitable, the annular boss (64) that described large-diameter portion (62) and described screw rod (61) offset along the shoulder block (11) that circumferentially also is formed with bottom and described hold-down nut (1) at interface, and, this metal connector (6) offers through hole (65) along its length, and described circuit board (3) passes described through hole (65) and realizes and being electrically connected of described cable tail (2).
2. bottom type sensor for solar water heater according to claim 1, it is characterized in that: described thimble assembly also includes inner layer stainless steel tube (42), described inner layer stainless steel tube (42) is set in outside the described internal layer copper pipe (41) and with described water-level and water-temperature control circuit and is connected, and connects by described heat-shrinkable T bush (43) between the described time adjacent internal layer copper pipe; And, also be arranged with middle level copper pipe (44) outside the described heat-shrinkable T bush (43), be arranged with outer heat-shrinkable T bush (45) outside the described middle level copper pipe (44) again.
3. bottom type sensor for solar water heater according to claim 1, it is characterized in that: described thimble assembly has the level Four level electrode, wherein, between adjacent two described outer heat-shrinkable T bush near described metal connector (6) setting is first order level electrode (A), and described copperhead (31) is fourth stage level electrode (D).
4. bottom type sensor for solar water heater according to claim 3, it is characterized in that: be positioned at the adapter sleeve (451) that also is socketed with little neck (63) insertion that can supply described metal connector outside the outer heat-shrinkable T bush (45) on the described first order level electrode (A), the big neck (62) of bottom of this adapter sleeve (451) and described metal connector (6) offsets with the boundary step surface (631) of minor diameter part (63).
5. bottom type sensor for solar water heater according to claim 1 is characterized in that: also be arranged with a sealing rubber ring (7) that offsets with annular boss (64) top of this metal connector (6) outside the large-diameter portion (62) of described metal connector (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202948183U CN201583029U (en) | 2009-12-17 | 2009-12-17 | Underfloor sensor of solar heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202948183U CN201583029U (en) | 2009-12-17 | 2009-12-17 | Underfloor sensor of solar heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201583029U true CN201583029U (en) | 2010-09-15 |
Family
ID=42725030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202948183U Expired - Fee Related CN201583029U (en) | 2009-12-17 | 2009-12-17 | Underfloor sensor of solar heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201583029U (en) |
-
2009
- 2009-12-17 CN CN2009202948183U patent/CN201583029U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Cixi Wanneng Electronics Co., Ltd. Assignor: Ningbo New-morning Green Lighting Technology Co., Ltd. Contract record no.: 2012330000481 Denomination of utility model: Underfloor sensor of solar heater Granted publication date: 20100915 License type: Exclusive License Record date: 20120829 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20121217 |