CN109000391A - A kind of fluid reservoir of strip resistance heater - Google Patents
A kind of fluid reservoir of strip resistance heater Download PDFInfo
- Publication number
- CN109000391A CN109000391A CN201810958526.9A CN201810958526A CN109000391A CN 109000391 A CN109000391 A CN 109000391A CN 201810958526 A CN201810958526 A CN 201810958526A CN 109000391 A CN109000391 A CN 109000391A
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- Prior art keywords
- fluid reservoir
- resistance heater
- insulated conductor
- terminal
- shell
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Artificial Filaments (AREA)
Abstract
This application involves a kind of fluid reservoirs of strip resistance heater; the tank body outer rim of fluid reservoir is connected with resistance heater; resistance heater is separately connected fluid reservoir pressure controller and fluid reservoir temperature protector, and fluid reservoir pressure controller and fluid reservoir temperature protector are separately connected fluid reservoir；The fluid reservoir temperature protector includes shell, and outer cover port sealing, equipped with Thermal Cutoffs, Thermal Cutoffs passes through terminal and is electrically connected with insulated conductor interior of shell；Also, interior of shell is equipped with moisture absorption filler.
Description
Technical field
This application involves fluid reservoir technical field more particularly to a kind of fluid reservoirs of strip resistance heater.
Background technique
Currently, heat dissipation capacity is big when many heat-producing devices are run in winter, needs refrigeration equipment to provide cryostat water and carry out
Heat dissipation, and refrigeration system in winter refrigerating operaton when, because winter environment temperature is lower, compressor start can be relatively difficult.
Therefore, it is necessary to resistance heater is arranged on fluid reservoir.
In addition, the working environment of fluid reservoir is unfavorable for temperature protector therein.
Summary of the invention
In order to one of at least solve the above problems, the present invention is intended to provide a kind of fluid reservoir of strip resistance heater.
A kind of fluid reservoir of strip resistance heater is provided in the embodiment of the present invention, the tank body outer rim of fluid reservoir is connected with electricity
Heater is hindered, resistance heater is separately connected fluid reservoir pressure controller and fluid reservoir temperature protector, the control of liquid storage pressure tank
Device and fluid reservoir temperature protector are separately connected fluid reservoir；The fluid reservoir temperature protector includes shell, and outer cover port seals,
Interior of shell is equipped with Thermal Cutoffs, and Thermal Cutoffs is electrically connected by terminal with insulated conductor；Also, interior of shell, which is equipped with, inhales
Wet filler.
The technical solution that the embodiment of the present invention provides can include the following benefits:
Resistance heater is set on the fluid reservoir of the present invention in systems, and passes through fluid reservoir pressure controller, fluid reservoir
Temperature protector controls the start and stop of resistance heater, solves compressor when environment temperature is too low or Compressor Discharge Pressure is too low and opens
Difficult problem is moved, guarantees that compressor is normal, even running；
In addition, the temperature protector outer cover port seals, also, is equipped with moisture absorption filler inside the housing, which is filled out
Filling object can effectively avoid the Thermal Cutoffs set on interior of shell from losing due to the influence by factors such as extraneous burn into humidities
Effect, the program are realized simply, can guarantee that temperature protector work is more stable, sensitive.
The additional aspect of the application and advantage will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or recognized by the practice of the application.It should be understood that above general description and following detailed description are only
Be it is exemplary and explanatory, the application can not be limited.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the theory structure schematic diagram of fluid reservoir of the present invention；
Fig. 2 is the structural schematic diagram of fluid reservoir temperature protector of the present invention.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
The present embodiment is related to a kind of fluid reservoir of strip resistance heater, as shown in Figure 1, the tank body outer rim of fluid reservoir 1 is connected with
Resistance heater 2, resistance heater 2 are separately connected fluid reservoir pressure controller 3 and fluid reservoir temperature protector 4, fluid reservoir pressure
Force controller 3 and fluid reservoir temperature protector 4 are separately connected fluid reservoir 1.
When cooling activation is run the refrigeration system in winter, pass through environment temperature sensor and fluid reservoir pressure controller
Detect environment temperature t1 and liquid storage pressure tank P:
1) environment temperature t1 < setting value T1 or liquid storage pressure tank P < sets minimal pressure force value P1, then start-up resistor heats
Device, it is ensured that liquid storage pressure tank P, which reaches, operates normally pressure value P 0；
2) after compressor normally starts, fluid reservoir temperature t2 >=setting value T2 or liquid storage pressure tank P >=setup pressure value
P2, then resistance heater is out of service.
Humidity has an impact circuit in environment in order to prevent, and disclosed technique scheme further relates to above-mentioned fluid reservoir temperature
Protector 4, the temperature protector include shell 21, and outer cover port seals 23, is equipped with Thermal Cutoffs 26, temperature inside shell 21
Fuse 26 is electrically connected by terminal with insulated conductor；Also, moisture absorption filler 29 is equipped with inside shell 21.The embodiment of the present invention
Temperature protector, outer cover port sealing, also, inside the housing be equipped with moisture absorption filler, which can be effective
The Thermal Cutoffs set on interior of shell is avoided to fail due to the influence by factors such as extraneous burn into humidities, the program is real
It is now simple, it can guarantee that temperature protector work is more stable, sensitive.Wherein, the electrical connection is using commonly used in the art
Crimp technology means, after process is the SI semi-insulation skin for stripping the end of insulated conductor, using terminal by Thermal Cutoffs
It is closely crimped together with the exposed conductive core line of insulated conductor, to achieve the purpose that firm connection, and then guarantees electric current
Stabilization and Thermal Cutoffs normal operation.
Preferably, the material of the shell is fire-retardant nylon.
Fluid reservoir temperature protector 4 is specific as shown in Fig. 2, the temperature protector includes shell 21, Thermal Cutoffs 26, the
One terminal 28, Second terminal 27, the first insulated conductor 24, the second insulated conductor 25.Wherein, the first insulated conductor 24 and second is exhausted
Edge conducting wire 25 includes conductive core line and the insulated hull for being coated on conductive core line outer surface.One end of Thermal Cutoffs 26 passes through the
One terminal 28 is electrically connected with the conductive core line of the first insulated conductor 24, and the other end passes through Second terminal 27 and the second insulated conductor 25
Conductive core line electrical connection.The distance between insulated hull of first terminal 28 and the first insulated conductor 24 is less than or equal to 1mm；Second
The distance between insulated hull of terminal and the second insulated conductor is less than or equal to 1mm.Wherein control each terminal and each insulated conductor
The distance between insulated hull is less than or equal to 1mm, is the anti-leak-stopping in order to which the conductive core line part for keeping insulated conductor exposed is as short as possible
The generation of the accidents such as electricity.Shell 21 is cylindrical tube open at one end, is filled with moisture absorption filler 29 in shell 21, passes through moisture absorption
Filler is close by Thermal Cutoffs, first terminal, Second terminal and the first insulated conductor of part and the second insulated conductor of part
Envelope is inside the shell.
Wherein, be provided with position limiting structure 22 in the end of shell seal, for make interior of shell Thermal Cutoffs, first
Terminal, Second terminal and the first insulated conductor of part and the second insulated conductor of part are not contacted with the inner wall of shell.By this
Position limiting structure makes Thermal Cutoffs during the installation process, can be positioned exactly at the center of interior of shell, so that inhaling
Wet filler uniformly wraps up Thermal Cutoffs, contacts it with the inner wall of shell, free from the influence of the external environment, and heat transfer
It is more uniform.Specifically, the tapered hatch frame of the position limiting structure, the center line of tapered opening structure and the center line one of shell
It causes, this ensures that the Thermal Cutoffs installed by position limiting structure is located at the center inside temperature protector.It is understood that
It is that the tapered end of the tapered opening structure and the end of shell seal are in the same side.
Specifically, moisture absorption filler is set forth below:
The moisture absorption filler is polyester fiber, which is to be prepared using modified copolyester slice by melt spinning
It obtains；Modified copolyester slice is to be prepared by addition hollow glass micropearl and active bentonite using situ aggregation method
's.Polyester fiber is very common chemical fiber, and common polyester fiber hygroscopicity is poor, technical solution of the present invention by pair
Polyester fiber is modified, achieves the technical effect of unexpected raising hydroscopicity, is then filled out using polyester fiber as moisture absorption
Object is filled, the quality of temperature protector can be reduced, the production application for realizing lighting is wanted while guaranteeing moisture absorption
It asks.
Specifically, the preparation process of above-mentioned modified copolyester slice are as follows:
Hollow glass micropearl and active bentonite are dissolved in ethylene glycol, the slurry of 16wt.% is configured to, then by the slurry
Expect ultrasonic disperse 3h, forms suspension；P-phthalic acid, ethylene glycol are put into reaction kettle according to the molar ratio of 1:1.4, together
When above-mentioned suspension and catalyst, heat stabilizer, anti-ether agent are also added together, be sufficiently stirred, finely dispersed slurries be made；
It is filled with 0.2Mpa nitrogen protection, esterification temperature is 233-243 DEG C, esterification time 2.5h, and esterification pressure is 0.35-0.45Mpa,
When the volume of the water distilled from esterification condensing unit is not less than the 95% of theoretical volume, reaction terminates, and ties in esterification
The polyethylene glycol of 5wt.%, normal pressure esterification 30min is added in Shu Hou；Temperature is gradually risen, starts simultaneously at and slowly vacuumizes, 30min
Within be evacuated to 100Pa hereinafter, control 260-280 DEG C of polycondensation reaction temperature, vacuum degree 45Pa, when polycondensation power increases to
When 150W, reaction terminates, and through discharging, pelletizing and drying program, modified copolyester slice is made.Then, by the modified copolyester
Polyester fiber is prepared by melt spinning in slice.
In polyester fiber, the content of the hollow glass micropearl and active bentonite is respectively 3-8wt.%, 5-9wt.%；
Under the control of above-mentioned quality, which can be realized good technical effect.The hollow glass micropearl partial size is
500nm-800nm；The active bentonite partial size is 100nm-200nm.
In addition, above-mentioned active bentonite is by obtaining to Organic Modification of Bentonites:
Bentonite is taken, by it in 340 DEG C of heating 50min, wherein heating rate is 3 DEG C/min；Then it is further continued for being warming up to
490 DEG C of heating 10h, wherein heating rate is 5 DEG C/min；Temperature fall；By the bentonite after heating in sodium hydroxide solution
10h is impregnated, it is clean wash with distilled water after immersion, then dried at 80 DEG C；Wherein, sodium hydroxide solution mass concentration is
2.4%；The bentonite that naoh treatment is crossed pulverizes and sieves, and 5g bentonite is then taken to be placed in conical flask, addition 30ml,
The cetyl trimethylammonium bromide solution of 70mmol/L, the supersonic modifying 50min at 50 DEG C, filtering obtain activity after dry
Bentonite.
In a preferred embodiment, the moisture absorption filler is the mixture of polyester fiber and carbon nanotube, the two matter
Amount ratio is 5:2；Carbon nanotube has good thermal conductivity, by mixing carbon nanotube and polyester fiber, is guaranteeing moisture absorption
While property, enable to temperature protector sensitiveer.
Further explanation is made to the present invention combined with specific embodiments below.
Embodiment 1
In the present embodiment, which includes shell, and outer cover port seals, and interior of shell is equipped with Thermal Cutoffs,
Thermal Cutoffs is electrically connected by terminal with insulated conductor；Also, interior of shell is equipped with moisture absorption filler, which is
Polyester fiber.
It the following is the preparation process of the polyester fiber:
S1, it modified copolyester is prepared cuts using situ aggregation method by addition hollow glass micropearl and active bentonite
Piece；
S2, polyester fiber is prepared by melt spinning in modified copolyester slice.
Wherein, S1 specifically:
Bentonite is taken, by it in 340 DEG C of heating 50min, wherein heating rate is 3 DEG C/min；Then it is further continued for being warming up to
490 DEG C of heating 10h, wherein heating rate is 5 DEG C/min；Temperature fall；By the bentonite after heating in sodium hydroxide solution
10h is impregnated, it is clean wash with distilled water after immersion, then dried at 80 DEG C；Wherein, sodium hydroxide solution mass concentration is
2.4%；The bentonite that naoh treatment is crossed pulverizes and sieves, and 5g bentonite is then taken to be placed in conical flask, addition 30ml,
The cetyl trimethylammonium bromide solution of 70mmol/L, the supersonic modifying 50min at 50 DEG C, filtering obtain activity after dry
Bentonite；
Hollow glass micropearl and active bentonite are dissolved in ethylene glycol, the slurry of 16wt.% is configured to, then by the slurry
Expect ultrasonic disperse 3h, forms suspension；P-phthalic acid, ethylene glycol are put into reaction kettle according to the molar ratio of 1:1.4, together
When above-mentioned suspension and catalyst, heat stabilizer, anti-ether agent are also added together, be sufficiently stirred, finely dispersed slurries be made；
It is filled with 0.2MPa nitrogen protection, esterification temperature is 233-243 DEG C, esterification time 2.5h, and esterification pressure is 0.35-0.45MPa,
When the volume of the water distilled from esterification condensing unit is not less than the 95% of theoretical volume, reaction terminates, and ties in esterification
The polyethylene glycol of 5wt.%, normal pressure esterification 30min is added in Shu Hou；Temperature is gradually risen, starts simultaneously at and slowly vacuumizes, 30min
Within be evacuated to 100Pa hereinafter, control 260-280 DEG C of polycondensation reaction temperature, vacuum degree 45Pa, when polycondensation power increases to
When 150W, reaction terminates, and through discharging, pelletizing and drying program, modified copolyester slice is made.
Then, which is sliced and polyester fiber is prepared by melt spinning.
Wherein, in polyester fiber, the content of the hollow glass micropearl and active bentonite be respectively 3wt.%,
5wt.%；The hollow glass micropearl partial size is 500nm-800nm；The active bentonite partial size is 100nm-200nm.
After measured, the regain of polyester fiber is 16.5% in the present embodiment, has good moisture pick-up properties.
Embodiment 2
In the present embodiment, which includes shell, and outer cover port seals, and interior of shell is equipped with Thermal Cutoffs,
Thermal Cutoffs is electrically connected by terminal with insulated conductor；Also, interior of shell is equipped with moisture absorption filler, which is
Polyester fiber.
It the following is the preparation process of the polyester fiber:
S1, it modified copolyester is prepared cuts using situ aggregation method by addition hollow glass micropearl and active bentonite
Piece；
S2, polyester fiber is prepared by melt spinning in modified copolyester slice.
Wherein, S1 specifically:
Bentonite is taken, by it in 340 DEG C of heating 50min, wherein heating rate is 3 DEG C/min；Then it is further continued for being warming up to
490 DEG C of heating 10h, wherein heating rate is 5 DEG C/min；Temperature fall；By the bentonite after heating in sodium hydroxide solution
10h is impregnated, it is clean wash with distilled water after immersion, then dried at 80 DEG C；Wherein, sodium hydroxide solution mass concentration is
2.4%；The bentonite that naoh treatment is crossed pulverizes and sieves, and 5g bentonite is then taken to be placed in conical flask, addition 30ml,
The cetyl trimethylammonium bromide solution of 70mmol/L, the supersonic modifying 50min at 50 DEG C, filtering obtain activity after dry
Bentonite；
Hollow glass micropearl and active bentonite are dissolved in ethylene glycol, the slurry of 16wt.% is configured to, then by the slurry
Expect ultrasonic disperse 3h, forms suspension；P-phthalic acid, ethylene glycol are put into reaction kettle according to the molar ratio of 1:1.4, together
When above-mentioned suspension and catalyst, heat stabilizer, anti-ether agent are also added together, be sufficiently stirred, finely dispersed slurries be made；
It is filled with 0.2MPa nitrogen protection, esterification temperature is 233-243 DEG C, esterification time 2.5h, and esterification pressure is 0.35-0.45MPa,
When the volume of the water distilled from esterification condensing unit is not less than the 95% of theoretical volume, reaction terminates, and ties in esterification
The polyethylene glycol of 5wt.%, normal pressure esterification 30min is added in Shu Hou；Temperature is gradually risen, starts simultaneously at and slowly vacuumizes, 30min
Within be evacuated to 100Pa hereinafter, control 260-280 DEG C of polycondensation reaction temperature, vacuum degree 45Pa, when polycondensation power increases to
When 150W, reaction terminates, and through discharging, pelletizing and drying program, modified copolyester slice is made.
Then, which is sliced and polyester fiber is prepared by melt spinning.
Wherein, in polyester fiber, the content of the hollow glass micropearl and active bentonite be respectively 8wt.%,
9wt.%；The hollow glass micropearl partial size is 500nm-800nm；The active bentonite partial size is 100nm-200nm.
After measured, the regain of polyester fiber is 14.7% in the present embodiment, has good moisture pick-up properties.
Embodiment 3
In the present embodiment, which includes shell, and outer cover port seals, and interior of shell is equipped with Thermal Cutoffs,
Thermal Cutoffs is electrically connected by terminal with insulated conductor；Also, interior of shell is equipped with moisture absorption filler, which is
Polyester fiber.
It the following is the preparation process of the polyester fiber:
S1, it modified copolyester is prepared cuts using situ aggregation method by addition hollow glass micropearl and active bentonite
Piece；
S2, polyester fiber is prepared by melt spinning in modified copolyester slice.
Wherein, S1 specifically:
Bentonite is taken, by it in 340 DEG C of heating 50min, wherein heating rate is 3 DEG C/min；Then it is further continued for being warming up to
490 DEG C of heating 10h, wherein heating rate is 5 DEG C/min；Temperature fall；By the bentonite after heating in sodium hydroxide solution
10h is impregnated, it is clean wash with distilled water after immersion, then dried at 80 DEG C；Wherein, sodium hydroxide solution mass concentration is
2.4%；The bentonite that naoh treatment is crossed pulverizes and sieves, and 5g bentonite is then taken to be placed in conical flask, addition 30ml,
The cetyl trimethylammonium bromide solution of 70mmol/L, the supersonic modifying 50min at 50 DEG C, filtering obtain activity after dry
Bentonite；
Hollow glass micropearl and active bentonite are dissolved in ethylene glycol, the slurry of 16wt.% is configured to, then by the slurry
Expect ultrasonic disperse 3h, forms suspension；P-phthalic acid, ethylene glycol are put into reaction kettle according to the molar ratio of 1:1.4, together
When above-mentioned suspension and catalyst, heat stabilizer, anti-ether agent are also added together, be sufficiently stirred, finely dispersed slurries be made；
It is filled with 0.2MPa nitrogen protection, esterification temperature is 233-243 DEG C, esterification time 2.5h, and esterification pressure is 0.35-0.45MPa,
When the volume of the water distilled from esterification condensing unit is not less than the 95% of theoretical volume, reaction terminates, and ties in esterification
The polyethylene glycol of 5wt.%, normal pressure esterification 30min is added in Shu Hou；Temperature is gradually risen, starts simultaneously at and slowly vacuumizes, 30min
Within be evacuated to 100Pa hereinafter, control 260-280 DEG C of polycondensation reaction temperature, vacuum degree 45Pa, when polycondensation power increases to
When 150W, reaction terminates, and through discharging, pelletizing and drying program, modified copolyester slice is made.
Then, which is sliced and polyester fiber is prepared by melt spinning.
Wherein, in polyester fiber, the content of the hollow glass micropearl and active bentonite be respectively 6wt.%,
7wt.%；The hollow glass micropearl partial size is 500nm-800nm；The active bentonite partial size is 100nm-200nm.
After measured, the regain of polyester fiber is 17.1% in the present embodiment, has good moisture pick-up properties.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention
Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of fluid reservoir of strip resistance heater, which is characterized in that the tank body outer rim of fluid reservoir is connected with resistance heater, resistance
Heater is separately connected fluid reservoir pressure controller and fluid reservoir temperature protector, fluid reservoir pressure controller and fluid reservoir temperature
Protector is separately connected fluid reservoir；The fluid reservoir temperature protector includes shell, and outer cover port sealing, interior of shell is equipped with warm
Fuse is spent, Thermal Cutoffs is electrically connected by terminal with insulated conductor；Also, interior of shell is equipped with moisture absorption filler.
2. a kind of fluid reservoir of strip resistance heater according to claim 1, which is characterized in that the material of the shell is
Fire-retardant nylon.
3. a kind of fluid reservoir of strip resistance heater according to claim 1, which is characterized in that the temperature protector includes
Shell, Thermal Cutoffs, first terminal, Second terminal, the first insulated conductor, the second insulated conductor；Wherein, the first insulated conductor
It include conductive core line and the insulated hull for being coated on conductive core line outer surface with the second insulated conductor；One end of Thermal Cutoffs is logical
It crosses first terminal to be electrically connected with the conductive core line of the first insulated conductor, the other end is led by Second terminal and the second insulated conductor
The electrical connection of battery core line；The distance between insulated hull of first terminal and the first insulated conductor is less than or equal to 1mm；Second terminal and the
The distance between insulated hull of two insulated conductors is less than or equal to 1mm；Shell is cylindrical tube open at one end, envelope filled to be filled with
Moisture absorption filler, by moisture absorption filler by Thermal Cutoffs, first terminal, Second terminal and the first insulated conductor of part and
The second insulated conductor of part seals inside the shell.
4. a kind of fluid reservoir of strip resistance heater according to claim 3, which is characterized in that the moisture absorption filler is poly-
Ester fiber, the polyester fiber are sliced using modified copolyester and are prepared by melt spinning；Modified copolyester slice
It is to be prepared by addition hollow glass micropearl and active bentonite using situ aggregation method.
5. a kind of fluid reservoir of strip resistance heater according to claim 4, which is characterized in that the moisture absorption filler is
The mixture of polyester fiber and carbon nanotube, the two mass ratio are 5:2.
6. a kind of fluid reservoir of strip resistance heater according to claim 4, which is characterized in that
The preparation process of the polyester fiber:
S1, modified copolyester slice is prepared using situ aggregation method by addition hollow glass micropearl and active bentonite；
S2, polyester fiber is prepared by melt spinning in modified copolyester slice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958526.9A CN109000391A (en) | 2018-08-22 | 2018-08-22 | A kind of fluid reservoir of strip resistance heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810958526.9A CN109000391A (en) | 2018-08-22 | 2018-08-22 | A kind of fluid reservoir of strip resistance heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109000391A true CN109000391A (en) | 2018-12-14 |
Family
ID=64593421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810958526.9A Pending CN109000391A (en) | 2018-08-22 | 2018-08-22 | A kind of fluid reservoir of strip resistance heater |
Country Status (1)
| Country | Link |
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| CN (1) | CN109000391A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113899056A (en) * | 2021-10-28 | 2022-01-07 | 广东友电新能源科技有限公司 | Low-temperature starting module, machine room air conditioning system and control method |
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Application publication date: 20181214 |
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| RJ01 | Rejection of invention patent application after publication |