CN110912838A - Switch with heating function - Google Patents
Switch with heating function Download PDFInfo
- Publication number
- CN110912838A CN110912838A CN201911241051.2A CN201911241051A CN110912838A CN 110912838 A CN110912838 A CN 110912838A CN 201911241051 A CN201911241051 A CN 201911241051A CN 110912838 A CN110912838 A CN 110912838A
- Authority
- CN
- China
- Prior art keywords
- switch
- temperature
- heating
- module
- control module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/40—Constructional details, e.g. power supply, mechanical construction or backplane
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/04—Frames or mounting racks for selector switches; Accessories therefor, e.g. frame cover
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/35—Switches specially adapted for specific applications
- H04L49/351—Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
Abstract
The embodiment of the invention discloses a switch with a heating function. The switch includes: the switch comprises a metal shell, a switch body, a heating control module, a switching device and a power supply module, wherein the switch body, the heating control module, the switching device and the power supply module are arranged in the metal shell; the switching device is used for disconnecting the electric connection between the heating control module and the power supply module when the switch body starts to work; and establishing an electrical connection between the heating control module and the power supply module when the switch body stops working; and the heating control module is used for adjusting the temperature inside the exchanger when the exchanger stops working. This switch can improve ethernet switch environmental suitability ability, prevents that the comdenstion water from appearing in the ethernet switch, promotes the life of ethernet switch product.
Description
Technical Field
The embodiment of the invention relates to the technical field of switches, in particular to a switch with a heating function.
Background
The Ethernet switch is generally divided into a BOX desktop switch and a modular card-inserted switch, and the switch can be simplified into a load needing certain power no matter the BOX desktop switch or the card-inserted switch, and an external power supply supplies power to the load and cuts off the power through the on and off of a switch. When the switch of the exchanger is closed, the exchanger is electrified to work, and the load consumes certain power and is converted into heat, so that the temperature of the metal shell of the exchanger is higher, and condensed water is not easy to generate. However, when the switch of the exchanger is disconnected, the exchanger does not work, the load cannot generate heat because no power is consumed, so that the temperature of the metal shell of the exchanger is lower, and when gas with the temperature higher than that of the metal shell of the exchanger meets the exchanger, the metal shell of the exchanger can generate condensed water.
In fact, people often pay attention to how the heat dissipation is realized when the exchanger works, the exchanger cannot be damaged due to too high temperature, but the problem that condensed water is generated due to low temperature when the exchanger does not work is not paid attention to. Because there is not the method that prevents the switch comdenstion water and also there is not safeguard measure, when the switch was out of work, can appear the comdenstion water because metal casing temperature is low, the comdenstion water can drip or permeate on the inside mainboard of switch, leads to the mainboard short circuit to break down or even burn out, influences the use of switch, reduces the life-span of switch.
Disclosure of Invention
The embodiment of the invention provides a switch with a heating function, which can improve the environmental adaptability of an Ethernet switch, prevent the Ethernet switch from generating condensed water and prolong the service life of an Ethernet switch product.
An embodiment of the present invention provides an exchange with a heating function, where the exchange includes: the switch comprises a metal shell, a switch body, a heating control module, a switching device and a power supply module, wherein the switch body, the heating control module, the switching device and the power supply module are arranged in the metal shell; the switching device is used for disconnecting the electric connection between the heating control module and the power supply module when the switch body starts to work; and establishing an electrical connection between the heating control module and the power supply module when the switch body stops working; and the heating control module is used for adjusting the temperature inside the exchanger when the exchanger stops working.
Optionally, the switching device is a switching device, and the switching device includes: the switching device comprises a public end, a first switching end and a second switching end; the public end is connected with one end of the power module, the first switching end is connected with the first power end of the switch body, the second switching end is connected with the first power end of the heating control module, the second power end of the switch body and the second power end of the heating control module are respectively connected with the other end of the power module.
Optionally, the switching device is a single-pole double-throw switch.
Optionally, the heating control module specifically includes: the temperature control socket and the heating device are connected; the temperature control socket is used for establishing the electric connection between the heating device and the power supply module when the temperature in the switch is detected to meet a first threshold condition, and disconnecting the electric connection between the heating device and the power supply module when the temperature in the switch is detected to meet a second threshold condition; the heating device is used for generating heat when electrified so as to increase the temperature of the surrounding environment.
Optionally, the temperature control socket includes a first temperature probe and a temperature control switch; the first temperature probe is used for detecting the temperature of a metal shell of the switch; the temperature control switch is used for establishing electric connection between the heating device and the power supply module when the temperature of the metal shell is lower than a corresponding temperature threshold; and when the temperature of the metal shell is higher than the corresponding temperature threshold, disconnecting the electric connection between the heating device and the power supply module.
Optionally, the temperature control socket includes a second temperature probe and a temperature control switch;
the second temperature probe is used for detecting the ambient temperature of the exchanger;
the temperature control switch is used for establishing electric connection between the heating device and the power supply module when the environment temperature is lower than a corresponding temperature threshold; and disconnecting the electrical connection between the heating device and the power module when the ambient temperature is above a corresponding temperature threshold.
Optionally, the temperature control socket includes a first temperature probe, a second temperature probe and a temperature control switch; the first temperature probe is used for detecting the temperature of a metal shell of the switch, and the second temperature probe is used for detecting the ambient temperature of the switch; the temperature control switch is used for establishing electric connection between the heating device and the power supply module when the temperature of the metal shell and the ambient temperature are lower than corresponding temperature thresholds; and when the temperature of the metal shell and the ambient temperature are higher than the corresponding temperature threshold, disconnecting the electric connection between the heating device and the power supply module.
Optionally, the heating device is at least one positive temperature coefficient thermistor.
Optionally, when the number of the positive temperature coefficient thermistors is more than one, the positive temperature coefficient thermistors are connected in parallel.
Optionally, the switch further includes: a heat sink;
the heat dissipation device is arranged on the heating control module and used for dissipating heat generated by the heating control module into the switch so as to adjust the temperature inside the switch.
In the embodiment of the invention, the switching device is respectively connected with the switch body, the heating control module and the power supply module; when the switch body starts to work, the switching device disconnects the electric connection between the heating control module and the power supply module; when the switch body stops working, the switching device establishes the electric connection between the heating control module and the power supply module; at the switch stop work, the inside temperature of heating control module adjustment switch, the switch has been solved at the stop work, the metal casing temperature is lower, switch metal casing can produce the problem of comdenstion water, the improvement switch environmental suitability ability has been realized, metal casing's temperature when the switch stop work can not be too low, can avoid making switch metal casing condensate water appear because of metal casing's temperature is lower, and then drip or permeate to the inside mainboard of switch, lead to the mainboard short circuit condition of breaking down or even burning out, can promote the life of switch product.
Drawings
Fig. 1 is an external structural diagram of a BOX desktop switch in the prior art;
FIG. 2 is a schematic diagram of the external structure of a modular card-insertion switch of the prior art;
FIG. 3 is a simplified block diagram of a switch in the prior art;
fig. 4 is a simplified circuit model diagram of a switch with a heating function according to an embodiment of the present invention;
fig. 5 is a simplified circuit model diagram of an exchange with a heating function according to a second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
First, the basic principle that the exchanger in the related art easily generates condensed water will be briefly described. Fig. 1 is an external structural diagram of a BOX desktop switch in the prior art; FIG. 2 is a schematic diagram of the external structure of a modular card-insertion switch of the prior art; fig. 3 is a simplified model diagram of a switch in the prior art.
As shown in fig. 1 and fig. 2, the prior art ethernet switches are generally divided into BOX desktop switches (fig. 1) and modular card switches (fig. 2), and in order to facilitate heat dissipation, the housing is generally made of metal, and the metal housing is not without any gap. Generally, a switch in the prior art can be simplified into a simplified model as shown in fig. 3, the switch in the prior art can be regarded as a load requiring power consumption, an external power supply supplies power to the load and cuts off the power through the closing and opening of a switch, and meanwhile, the load is connected with a fuse in series to ensure that the load cannot be burnt when a circuit fails. When the switch is closed, the switch starts to work, consumes power to generate heat, transfers the heat to the metal shell, and does not generate condensed water; and when the switch disconnection, switch stop work among the prior art, the metal heat dissipation is very fast, causes the metal casing temperature of switch lower, when meeting the switch than the gas that switch metal casing temperature is high, switch metal casing can produce the comdenstion water, probably drips or permeates to the inside mainboard of switch on, leads to the mainboard short circuit to break down or even burn out.
However, in the prior art, designers often focused on cooling or dissipating heat from equipment without regard to heating the equipment to avoid condensate formation. For example, in a control system of a network cabinet temperature and a power system including the same, the control system of the network cabinet temperature includes: the system comprises a temperature detector, a contactor and a cooler, wherein the temperature detector is used for detecting a temperature signal of the network cabinet; the contactor is connected with the temperature detector and used for judging whether the temperature signal is greater than a first threshold value or not; the cooler is connected with the contactor, and when the temperature signal is greater than a first threshold value, the cooler is started. For another example, a method for realizing heat dissipation and noise reduction of a switch by adopting temperature sensing monitoring is characterized in that a temperature sensor, a fan set and a controller are arranged in a switch shell, the switch shell is provided with a temperature display and an early warning indicator light, the temperature sensor is in communication connection with the temperature display, and the controller controls the fan set to be started through temperature data provided by the temperature sensor; according to the temperature condition monitored by the temperature sensor, when the temperature of the exchanger is higher than a certain threshold value, the controller controls to start all fan sets or maintain the minimum fan set with normal temperature; when the temperature of the exchanger is lower than a certain threshold value, the controller controls to shut down all fan sets or the maximum fan sets maintaining normal temperature. The equipment is cooled or radiated, and the conditions that the equipment is damaged by condensed water and the service life of the equipment is shortened due to lower temperature possibly caused after the equipment stops working are not considered.
In the embodiment of the present invention, the inventor creatively uses the reverse thinking in view of the discovered defects of the prior art, and proposes to add a heating control module in the switch so as to avoid the generation of condensed water in the metal shell of the switch to the maximum extent.
Example one
Fig. 4 is a simplified block diagram of an exchange with a heating function according to an embodiment of the present invention. The embodiment can be applied to the situation that when the Ethernet switch stops working, the metal shell is prevented from generating condensed water by reheating the interior of the Ethernet switch.
As shown in fig. 4, the switch having the heating function includes: a metal housing (not shown in fig. 4), a switch body 400, a heating control module 480, a switching device 460 and a power module 470, which are arranged inside the metal housing, wherein the switching device 460 is respectively connected with the switch body 400, the heating control module 480 and the power module 470;
a switching device 460 for disconnecting the electrical connection between the heating control module 480 and the power supply module 470 when the switch body 400 starts to operate; and, when the switch body 400 stops operating, establishing an electrical connection between the heating control module 480 and the power supply module 470;
and a heating control module 480 for adjusting the temperature inside the switch when the switch stops operating.
The switch body 400 may have an independent power supply device, and then the power module 470 is used to independently supply power to the heating control module 480, or the switch body 400 may not have an independent power supply device, and then the power module 470 needs to simultaneously supply power to the switch body 400 and the heating control module 480.
In one specific example, if the power module 470 independently powers the heating control module 480, the switching device 460 may be a one-way switching device such as a programmable switch, a key switch, or a one-way relay. When the switch body 400 starts to operate, the one-way switch device disconnects the electrical connection between the power module and the heating control module, and when the switch body 400 stops operating, the one-way switch device establishes the electrical connection between the power module 470 and the heating control module 480.
For example, the power module 470 independently supplies power to the heating control module 480, and when the switching device 460 is a one-way relay, the switching device 460 may include a body of the one-way relay and a normally closed switch of the one-way relay. The switch body 400 can be connected in series with the single-path relay body, the switch of the switch body 400 and the independent power supply device of the switch body 400 to form a working circuit of the switch body 400; the heating control module 480 may be connected in series with the normally closed switch of the one-way relay and the power module 470 to form an operating circuit for the heating control module 480. When a user turns on the switch of the switch body 400, the operating circuit of the switch body 400 is turned on, and the switch body 400 starts to operate; at this time, the one-way relay is powered on, the normally closed switch is turned off, the working circuit of the heating control module 480 is turned off, and the heating control module 480 stops working. When the user switches off the switch of the switch body 400, the working circuit of the switch body 400 is disconnected, and the switch body 400 stops working; at this time, the single-path relay is powered off, the normally closed switch is closed, the working circuit of the heating control module 480 is switched on, and the heating control module 480 starts to work. The embodiment of the invention can also realize that the switch body 400 starts to work and the heating control module 480 stops working; the embodiment of the present invention is not limited to a specific circuit, but the switch body 400 stops working and the heating control module 480 starts working.
In another specific example, the power module 470 needs to supply power to the switch body 400 and the heating control module 480 at the same time, and the switching device may be a two-way switching device such as a single-pole double-throw switch, a two-way relay, etc. when the user selects the two-way switching device to establish the electrical connection between the switch body 400 and the power module 470, the electrical connection between the power module 470 and the heating control module 480 is automatically disconnected; when the user selects the two-way switching device to break the electrical connection between the switch body 400 and the power module 470, the electrical connection between the power module 470 and the heating control module 480 is automatically established.
Specifically, the heating control module 480 may include one or more electric heating elements, such as nickel-chromium (Ni-Cr), iron-chromium-aluminum (Fe-Cr-Al), silicon carbide, PTC (Positive temperature coefficient thermistor), electrothermal paint, and the like.
Optionally, one or more PTCs connected in series or parallel may be included in the heating control module 480.
Further, the heating control module 480 may further include other devices for assisting temperature adjustment, such as a timer or a temperature sensor, for example, a heating time period, such as 30 minutes, may be preset, and when the heating time period is reached, the electric heating element is stopped from being heated. For another example, in the heating control module 480, the electric heating element is controlled to heat or stop heating according to different temperature ranges in which the temperature values detected by the temperature sensors are located, so as to prevent the temperature in the exchanger from being too high.
In the embodiment of the invention, the switching device is respectively connected with the switch body, the heating control module and the power supply module; when the switch body starts to work, the switching device disconnects the electric connection between the heating control module and the power supply module; when the switch body stops working, the switching device establishes the electric connection between the heating control module and the power supply module; at the switch stop work, the inside temperature of heating control module adjustment switch, the switch has been solved at the stop work, the metal casing temperature is lower, switch metal casing can produce the problem of comdenstion water, the improvement switch environmental suitability ability has been realized, metal casing's temperature when the switch stop work can not be too low, can avoid making switch metal casing condensate water appear because of metal casing's temperature is lower, and then drip or permeate to the inside mainboard of switch, lead to the mainboard short circuit condition of breaking down or even burning out, can promote the life of switch product.
Example two
Fig. 5 is a simplified model diagram of an exchange with a heating function according to a second embodiment of the present invention. As shown in fig. 5, the switch includes: a metal case (not shown in fig. 5), a switch body 400, a heating control module 480, a switching device 460, and a power module 470, which are disposed inside the metal case.
In the embodiment of the present invention, the switching device 460 is respectively connected to the switch body 400, the heating control module 480, and the power module 470; a switching device 460 for disconnecting the electrical connection between the heating control module 480 and the power supply module 470 when the switch body 400 starts to operate; and, when the switch body 400 stops operating, establishing an electrical connection between the heating control module 480 and the power supply module 470; and a heating control module 480 for adjusting the temperature inside the switch when the switch stops operating.
On the basis of the above embodiment, optionally, as shown in fig. 5, the switching device 460 is a switching device, and the switching device includes: a common terminal 1, a first switching terminal 2 and a second switching terminal 3; the common terminal 1 is connected to one end of the power module 470, the first switching terminal 2 is connected to a first power terminal of the switch body 400, the second switching terminal 3 is connected to a first power terminal of the heating control module 480, a second power terminal of the switch body 400, and a second power terminal of the heating control module 480 are connected to the other end of the power module 470, respectively.
As shown in fig. 5, the switch body 400 can be simplified into a load, and the embodiment of the present invention can also be applied to other devices that can be simplified into a load that generates heat when consuming power and that generates condensed water when the shell is fast in heat dissipation and low in temperature after stopping working. The switching device 460 may be a switching device for realizing circuit opening or closing, such as a single-pole double-throw switch, a two-way relay, and other two-way switching devices, wherein the switching device may include three terminals, a common terminal 1, a first switching terminal 2, and a second switching terminal 3. The power module 470 may be a dc power source or an ac power source.
For example, when the power module 470 is a dc power source, the common terminal 1 may be connected to the positive pole of the power module 470; the first switching terminal 2 may be connected to a first power terminal of the switch body 400, wherein the first power terminal of the switch body 400 may be a connection terminal of the switch body 400 to which the positive electrode of the power module 470 needs to be connected. For example, when the common terminal 1 of the switching device 460 and the first switching terminal 2 are electrically connected, the first power terminal of the switch body 400 may be connected to the positive electrode of the power module 470 through the first switching terminal 2 and the common terminal 1. And the second power end of the switch body 400 may be connected to the other end, e.g., the negative electrode, of the power module 470 through a fuse, wherein the second power end of the switch body 400 may be a connection end of the switch body 400 to be connected to the negative electrode of the power module 470. For example, the second power terminal of the switch body 400 is connected to the negative electrode of the power module 470 through a fuse.
For example, the second switch terminal 3 may be connected to a first power terminal of the heating control module 480, and the first power terminal of the heating control module 480 may be a connection terminal of the heating control module 480 to be connected to the positive electrode of the power module 470. For example, when the common terminal 1 of the switching device 460 and the first switching terminal 2 are in circuit, the first power terminal of the heating control module 480 is connected to the positive electrode of the power module 470 through the second switching terminal 3 and the common terminal 1. And a second power terminal of the heating control module 480 may be connected to the other terminal, e.g., the negative terminal, of the power module 470 through a fuse, wherein the second power terminal of the heating control module 480 may be the connection terminal of the heating control module 480 that is required to be connected to the negative terminal of the power module 470. For example, the second power terminal of the heating control module 480 is connected to the negative terminal of the power module 470 through a fuse.
Of course, the connection may be other connections that satisfy the circuit principle, and the heating control module 480 may stop working when the switch body 400 works; when the switch body 400 stops working, the circuit connection of the heating control module 480 works, for example, the connection of the negative electrode of the power supply and the second power supply end of the switch body 400 is connected through the common terminal 1 and the first switching terminal 2 of the switching device 460, and the invention is not limited in particular. Foretell connection can not increase the burden of switch at normal during operation, can realize that switch metal casing does not appear the comdenstion water when switch stop work, can make the use that the switch can all be fine under multiple environment, can prolong the life of switch.
In the embodiment of the present invention, the switching device is optionally a single-pole double-throw switch.
The single-pole double-throw switch is low in price, convenient to use and durable, can switch between two working states and two working stop states of the switch, and can also switch between two working states of the heating control module 480 and two working states of the heating control module 480 when the switch works.
In an implementation manner of the embodiment of the present invention, optionally, as shown in fig. 5, the heating control module 480 specifically includes: a temperature control socket 420 and a heating device 430 connected; a temperature control socket 420 for establishing an electrical connection between the heating device 430 and the power module 470 when the temperature within the switch is detected to satisfy a first threshold condition, and for disconnecting the electrical connection between the heating device 430 and the power module 470 when the temperature within the switch is detected to satisfy a second threshold condition; a heating device 430 for generating heat when energized to raise the temperature of the surrounding environment.
The temperature control socket 420 may automatically turn on a temperature control switch inside the temperature control socket 420 when it is detected that the temperature inside the switch satisfies a first threshold condition, so as to establish an electrical connection between the heating device 430 and the power module 470. The heating device 430 may be a nickel-chromium wire (Ni-Cr), an iron-chromium-aluminum wire (Fe-Cr-Al), silicon carbide, PTC, an electro-thermal coating, or the like. When the switch stops working, the heating device 430 can generate heat through the electric connection between the heating device 430 and the power module 470, the temperature inside the switch is increased, and the phenomenon that condensed water appears due to the low temperature of the metal shell of the switch is avoided. The electrical connection between the heating device and the power module 470 is established only when the temperature in the exchanger is required to meet the first threshold condition, which can save resources, and the heating device 430 may not operate when the temperature in the exchanger does not cause the metal shell to be too low in temperature to generate condensed water. The temperature control socket 420 can automatically disconnect the temperature control switch inside the temperature control socket 420 when the temperature inside the switch is detected to meet the second threshold condition, so that the electric connection between the heating device 430 and the power module 470 is disconnected, the heating device 430 stops heating, and the phenomenon that the temperature inside the switch is too high to affect the service life of the switch or a person accidentally touches the metal shell of the switch to be scalded can be avoided.
It should be noted that the temperature control socket 420 may support an ac 220V power supply. The dc 12V or dc 24V may also be designed according to the actual application scenario, and the present invention is not limited in particular.
In one implementation of the embodiment of the present invention, optionally, as shown in fig. 5, the temperature control socket 420 includes a first temperature probe 440 and a temperature control switch; the first temperature probe 440 is used for detecting the temperature of the metal shell of the switch; a temperature control switch for establishing an electrical connection between the heating device 430 and the power module 470 when the metal housing temperature is below a corresponding temperature threshold; and, when the metal housing temperature is above the corresponding temperature threshold, the electrical connection between the heating device 430 and the power module 470 is broken.
Where the temperature control socket 420 includes the first temperature probe 440 and the temperature control switch, the first threshold condition may be that the first temperature probe 440 detects that the temperature of the metal shell of the switch is lower than a corresponding temperature threshold. The temperature control socket 420 may automatically turn on a temperature control switch inside the temperature control socket 420 when the first temperature probe 440 detects that the temperature of the metal housing of the switch is below a corresponding temperature threshold, thereby establishing an electrical connection between the heating device 430 and the power module 470. When the switch stops working, the heating device 430 can generate heat through the electric connection between the heating device 430 and the power module 470, the temperature inside the switch is increased, and the phenomenon that condensed water appears due to the low temperature of the metal shell of the switch is avoided. When the first temperature probe 440 detects that the temperature of the metal shell of the switch is lower than the corresponding temperature threshold, the electrical connection between the heating device 430 and the power module 470 is established, so that resources can be saved, and when the temperature in the switch does not cause the temperature of the metal shell to be too low to generate condensed water, the heating device 430 may not work. The second threshold condition may be when the first temperature probe 440 detects that the metal case temperature of the switch is above a corresponding temperature threshold. The temperature control socket 420 can automatically disconnect the temperature control switch inside the temperature control socket 420 when the first temperature probe 440 detects that the temperature of the metal shell of the switch is higher than the corresponding temperature threshold, so that the electrical connection between the heating device 430 and the power module 470 is disconnected, the heating device 430 stops generating heat, the temperature inside the switch is prevented from being too high, the service life of the switch is influenced, or personnel touch the metal shell of the switch carelessly and are scalded.
In one implementation of the embodiment of the present invention, optionally, as shown in fig. 5, the temperature control socket 420 includes a second temperature probe 450 and a temperature control switch; the second temperature probe 450 is used for detecting the ambient temperature of the switch; a temperature control switch for establishing an electrical connection between the heating device 430 and the power module 470 when the ambient temperature is below a corresponding temperature threshold; and, when the ambient temperature is above the corresponding temperature threshold, the electrical connection between the heating device 430 and the power module 470 is broken.
Where the temperature control socket 420 includes the second temperature probe 450 and the temperature control switch, the first threshold condition may be that the second temperature probe 450 detects that the ambient temperature of the switch is lower than the corresponding temperature threshold. The temperature control socket 420 may automatically turn on a temperature control switch within the temperature control socket 420 when the second temperature probe 450 detects that the ambient temperature of the switch is below a corresponding temperature threshold, thereby establishing an electrical connection between the heating device 430 and the power module 470. When the switch stops working, the heating device 430 can generate heat through the electric connection between the heating device 430 and the power module 470, the temperature inside the switch is increased, and the phenomenon that condensed water appears due to the low temperature of the metal shell of the switch is avoided. When the second temperature probe 450 detects that the environmental temperature of the switch is lower than the corresponding temperature threshold, the electrical connection between the heating device 430 and the power module 470 is established, on one hand, resources can be saved, and when the temperature in the switch does not cause the temperature of the metal shell to be too low to generate condensed water, the heating device 430 can not work; on the other hand, the condition that heating is not timely caused by the fact that the switch metal shell starts to heat when the temperature of the switch metal shell is detected to be lower than the corresponding temperature threshold can be avoided. The second threshold condition may be that the second temperature probe 450 detects that the ambient temperature of the switch is above a corresponding temperature threshold. The temperature control socket 420 can automatically disconnect the temperature control switch inside the temperature control socket 420 when the second temperature probe 450 detects that the ambient temperature of the switch is higher than the corresponding temperature threshold, so as to disconnect the electrical connection between the heating device 430 and the power module 470, and the heating device 430 stops generating heat, thereby avoiding the situation that the temperature inside the switch is too high, which affects the service life of the switch or people accidentally touch the metal shell of the switch to be scalded.
In one implementation of the embodiment of the present invention, optionally, as shown in fig. 5, the temperature control socket 420 comprises a first temperature probe 440, a second temperature probe 450, and a temperature control switch; the first temperature probe 440 is used for detecting the temperature of the metal shell of the switch, and the second temperature probe 450 is used for detecting the ambient temperature of the switch; a temperature control switch for establishing electrical connection between the heating device 430 and the power module 470 when the temperature of the metal housing is less than the ambient temperature and both the temperature of the metal housing and the ambient temperature are less than the corresponding temperature thresholds; and, when both the metal housing temperature and the ambient temperature are above the corresponding temperature thresholds, the electrical connection between the heating device 430 and the power module 470 is broken.
When the temperature control socket 420 includes the first temperature probe 440, the second temperature probe 450 and the temperature control switch, the first threshold condition may be that the temperature of the metal shell of the switch detected by the first temperature probe 440 is lower than the temperature of the environment of the switch detected by the second temperature probe 450, and both the temperature of the metal shell and the temperature of the environment are lower than the corresponding temperature thresholds. The temperature control socket 420 can automatically turn on the temperature control switch inside the temperature control socket 420 when the first temperature probe 440 detects that the temperature of the metal shell of the switch is lower than the temperature of the environment of the switch detected by the second temperature probe 450, and both the temperature of the metal shell and the temperature of the environment are lower than the corresponding temperature thresholds, so as to establish the electrical connection between the heating device 430 and the power module 470.
In a specific example, it can be determined whether the temperature control switch inside the temperature control socket 420 needs to be turned on to establish the electrical connection between the heating device 430 and the power module 470 according to the comparison between the metal casing temperature and the ambient temperature and the corresponding temperature thresholds, respectively. The production of comdenstion water is because metal casing temperature is less than ambient temperature and causes, adopt first temperature probe 440 to detect the metal casing temperature of switch, second temperature probe 450 detects the ambient temperature of switch, and judge metal casing temperature and ambient temperature, can make the switch-on of the inside temperature control switch of temperature control socket 420 more accurate, can be more accurately under the condition that produces the condensing, switch-on temperature control switch of the inside temperature control socket 420, under the condition that can not produce the condensing, the inside temperature control switch of the inside temperature control socket 420 of non-switch-on.
When the switch stops working, the heating device 430 can generate heat through the electric connection between the heating device 430 and the power module 470, the temperature inside the switch is increased, and the phenomenon that condensed water appears due to the low temperature of the metal shell of the switch is avoided. According to the technical scheme that the first temperature probe 440 is used for detecting the temperature of the metal shell of the switch, and the second temperature probe 450 is used for detecting the ambient temperature of the switch, on one hand, electric energy can be saved, energy consumption is reduced, and when the temperature in the switch does not enable the temperature of the metal shell to be too low to generate condensed water, the heating device 430 does not work; on the other hand, the condition that a certain temperature probe is out of order and inaccurate in detection can be avoided.
The second threshold condition may be that the metal case temperature of the switch detected by first temperature probe 440 and the ambient temperature of the switch detected by second temperature probe 450 are both above the corresponding temperature thresholds. Temperature control socket 420 can be when first temperature probe 440 detects the metal casing temperature of switch and second temperature probe 450 detects the ambient temperature of switch and all is higher than the temperature threshold that corresponds, the inside temperature control switch of automatic disconnection temperature control socket 420, thereby the disconnection is connected with the electricity between heating device 430 and the power module 470, heating device 430 stops generating heat, can avoid the high temperature in the switch, influence the life-span of switch or personnel touch the metal casing of switch and be scalded carelessly, can avoid certain temperature probe to break down, detect inaccurate condition.
In an embodiment of the present invention, the heating device 430 is at least one positive temperature coefficient thermistor, as shown in fig. 5.
The number of the heating devices 430 in the switch may be one or more, and the PTC may be a constant temperature heating device, which has the advantages of constant temperature heating, high heat conversion efficiency, long natural life, and little influence from power supply voltage. Once the PTC is powered, the surface temperature is constant and will not change due to the change of the external environment temperature, and according to different specifications, the surface temperature of the PTC has various specifications, such as 60 ℃, 70 ℃, 80 ℃, 140 ℃ or 160 ℃, and the like, and the appropriate temperature can be selected according to the actual application situation, and the invention is not particularly limited. The PTC supports various input voltages such as dc 12V, 24V and ac 220V, and the PTC of the input voltage can be selected according to the actual application condition, which is not limited in the present invention.
In the embodiment of the present invention, optionally, as shown in fig. 5, when the number of the positive temperature coefficient thermistors is more than one, the positive temperature coefficient thermistors are connected in parallel.
Wherein, when a plurality of PTC provide the heat for the switch, can adopt parallel connection to connect, the effect of generating heat is better, and the heat that provides is higher.
On the basis of the above embodiment, optionally, as shown in fig. 5, the switch may further include a heat dissipation device (not shown in fig. 5); the heat dissipation device is disposed on the heating control module 480, and is configured to dissipate heat dissipated by the heating control module 480 into the inside of the switch, so as to adjust the temperature inside the switch.
Wherein, heat abstractor can be on heating device 430, if set up the fin on PTC, can give off the heat that PTC sent inside the switch through the fin fast, heat the metal casing of whole switch, can avoid metal casing temperature to receive with heating device 430 position influence, the temperature that is close to heating device 430 is higher, the temperature of keeping away from heating device 430 is lower, and cause the damage to metal casing, also can avoid because the heat dissipation is untimely, cause the part that metal casing temperature is lower to appear the comdenstion water.
In the embodiment of the invention, the switching device is respectively connected with the switch body, the heating control module and the power supply module; when the switch body starts to work, the switching device disconnects the electric connection between the heating control module and the power supply module; when the switch body stops working, the switching device establishes the electric connection between the heating control module and the power supply module; when the switch stops working, the heating control module adjusts the temperature inside the switch. Specifically, the switching device may be a single-pole double-throw switch, and the heating control module may include a temperature control socket and a heating device; the temperature control socket can comprise a first temperature probe and/or a second temperature probe which are used for detecting the ambient temperature and/or the metal shell temperature of the switch; the temperature control socket may also include a temperature control switch for establishing or breaking an electrical connection between the heating device and the power module according to a relationship between the ambient temperature and/or the temperature of the metal housing and a corresponding temperature threshold; the heating device can be PTC, and can heat the inside of the switch when meeting the closing condition of the temperature control socket, and the heating device can also be provided with a radiating fin to accelerate the heat dissipation. The problem of the switch when the stop work is being solved, the metal casing temperature is lower, switch metal casing can produce the comdenstion water, the improvement switch environmental suitability ability has been realized, it is too low whether the temperature of accurately detecting metal casing when the switch stop work is, in time to the inside heating of switch, and dispel the heat fast and avoid making switch metal casing condensate water appear because of metal casing's temperature is lower, and then drip or permeate the mainboard of switch inside, lead to the condition that the mainboard short circuit broke down or even burns out, can promote the life of switch product, the device price that this switch with heating function used is low simultaneously, it is effectual to heat the radiating effect.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A switch with heating, comprising: the switch comprises a metal shell, a switch body, a heating control module, a switching device and a power supply module, wherein the switch body, the heating control module, the switching device and the power supply module are arranged in the metal shell;
the switching device is used for disconnecting the electric connection between the heating control module and the power supply module when the switch body starts to work; and establishing an electrical connection between the heating control module and the power supply module when the switch body stops working;
and the heating control module is used for adjusting the temperature inside the exchanger when the exchanger stops working.
2. The switch of claim 1, wherein the switching device is a switching device, the switching device comprising: the switching device comprises a public end, a first switching end and a second switching end;
the public end is connected with one end of the power module, the first switching end is connected with the first power end of the switch body, the second switching end is connected with the first power end of the heating control module, the second power end of the switch body and the second power end of the heating control module are respectively connected with the other end of the power module.
3. The switch of claim 2, wherein the switching device is a single pole double throw switch.
4. The switch according to claim 2, characterized in that said heating control module, in particular comprises: the temperature control socket and the heating device are connected;
the temperature control socket is used for establishing the electric connection between the heating device and the power supply module when the temperature in the switch is detected to meet a first threshold condition, and disconnecting the electric connection between the heating device and the power supply module when the temperature in the switch is detected to meet a second threshold condition;
the heating device is used for generating heat when electrified so as to increase the temperature of the surrounding environment.
5. The switch of claim 4, wherein the temperature control jack comprises a first temperature probe and a temperature control switch;
the first temperature probe is used for detecting the temperature of a metal shell of the switch;
the temperature control switch is used for establishing electric connection between the heating device and the power supply module when the temperature of the metal shell is lower than a corresponding temperature threshold; and when the temperature of the metal shell is higher than the corresponding temperature threshold, disconnecting the electric connection between the heating device and the power supply module.
6. The switch of claim 4, wherein the temperature control jack comprises a second temperature probe and a temperature control switch;
the second temperature probe is used for detecting the ambient temperature of the exchanger;
the temperature control switch is used for establishing electric connection between the heating device and the power supply module when the environment temperature is lower than a corresponding temperature threshold; and disconnecting the electrical connection between the heating device and the power module when the ambient temperature is above a corresponding temperature threshold.
7. The switch of claim 4, wherein the temperature control jack comprises a first temperature probe, a second temperature probe, and a temperature control switch;
the first temperature probe is used for detecting the temperature of a metal shell of the switch, and the second temperature probe is used for detecting the ambient temperature of the switch;
the temperature control switch is used for establishing electric connection between the heating device and the power supply module when the temperature of the metal shell is lower than the ambient temperature and the temperature of the metal shell and the ambient temperature are both lower than corresponding temperature thresholds; and when the temperature of the metal shell and the ambient temperature are both higher than the corresponding temperature threshold, disconnecting the electrical connection between the heating device and the power module.
8. A switch according to any of claims 4-7, characterized in that the heating means is at least one positive temperature coefficient thermistor.
9. The switch of claim 8, wherein more than one positive temperature coefficient thermistor is connected in parallel.
10. The switch according to any of claims 1-7, further comprising: a heat sink;
the heat dissipation device is arranged on the heating control module and used for dissipating heat generated by the heating control module into the switch so as to adjust the temperature inside the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911241051.2A CN110912838B (en) | 2019-12-06 | 2019-12-06 | Switch with heating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911241051.2A CN110912838B (en) | 2019-12-06 | 2019-12-06 | Switch with heating function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110912838A true CN110912838A (en) | 2020-03-24 |
| CN110912838B CN110912838B (en) | 2022-03-29 |
Family
ID=69823183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911241051.2A Active CN110912838B (en) | 2019-12-06 | 2019-12-06 | Switch with heating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110912838B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112566452A (en) * | 2020-11-19 | 2021-03-26 | 海鹰企业集团有限责任公司 | Anti-condensation circuit of cabinet |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090165476A1 (en) * | 2006-07-03 | 2009-07-02 | Seiki Hosaka | Cooling storage cabinet |
| CN101957624A (en) * | 2010-09-21 | 2011-01-26 | 南车株洲电力机车研究所有限公司 | Method and system for controlling air dehumidifier of current transformer of wind power generator |
| CN201760289U (en) * | 2010-09-03 | 2011-03-16 | 上海林频仪器股份有限公司 | Temperature adjustable box type testing apparatus |
| CN103297664A (en) * | 2013-06-17 | 2013-09-11 | 安科智慧城市技术（中国）有限公司 | Video camera and low temperature starting device and method thereof |
| CN203232372U (en) * | 2013-03-15 | 2013-10-09 | 刘琴 | Internal temperature control system for computer |
| CN103384460A (en) * | 2013-07-30 | 2013-11-06 | 上海交通大学 | Condensation preventing equipment cabinet with renewable metal matrix solid desiccant |
| CN105281582A (en) * | 2015-11-12 | 2016-01-27 | 北京能高自动化技术股份有限公司 | Closed box type water cooling photovoltaic power station and intra-box environment control method thereof |
| CN205388720U (en) * | 2016-01-27 | 2016-07-20 | 浙江科力特电气有限公司 | Cabinet intelligence dehumidification heating all -in -one |
| CN206627844U (en) * | 2017-02-16 | 2017-11-10 | 杭州鸿程科技有限公司 | The anti-condensation control device of rack |
| CN207010715U (en) * | 2017-05-11 | 2018-02-13 | 无锡鸿飞信联科技有限公司 | Wireless exchange board with heating |
| CN207353732U (en) * | 2017-11-01 | 2018-05-11 | 云南电网有限责任公司德宏供电局 | A kind of anti-condensation dehumidifier |
| CN208540350U (en) * | 2018-05-14 | 2019-02-22 | 北京天润金成科技有限公司 | A kind of temperature and humidity automatic adjustment cabinet |
-
2019
- 2019-12-06 CN CN201911241051.2A patent/CN110912838B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090165476A1 (en) * | 2006-07-03 | 2009-07-02 | Seiki Hosaka | Cooling storage cabinet |
| CN201760289U (en) * | 2010-09-03 | 2011-03-16 | 上海林频仪器股份有限公司 | Temperature adjustable box type testing apparatus |
| CN101957624A (en) * | 2010-09-21 | 2011-01-26 | 南车株洲电力机车研究所有限公司 | Method and system for controlling air dehumidifier of current transformer of wind power generator |
| CN203232372U (en) * | 2013-03-15 | 2013-10-09 | 刘琴 | Internal temperature control system for computer |
| CN103297664A (en) * | 2013-06-17 | 2013-09-11 | 安科智慧城市技术（中国）有限公司 | Video camera and low temperature starting device and method thereof |
| CN103384460A (en) * | 2013-07-30 | 2013-11-06 | 上海交通大学 | Condensation preventing equipment cabinet with renewable metal matrix solid desiccant |
| CN105281582A (en) * | 2015-11-12 | 2016-01-27 | 北京能高自动化技术股份有限公司 | Closed box type water cooling photovoltaic power station and intra-box environment control method thereof |
| CN205388720U (en) * | 2016-01-27 | 2016-07-20 | 浙江科力特电气有限公司 | Cabinet intelligence dehumidification heating all -in -one |
| CN206627844U (en) * | 2017-02-16 | 2017-11-10 | 杭州鸿程科技有限公司 | The anti-condensation control device of rack |
| CN207010715U (en) * | 2017-05-11 | 2018-02-13 | 无锡鸿飞信联科技有限公司 | Wireless exchange board with heating |
| CN207353732U (en) * | 2017-11-01 | 2018-05-11 | 云南电网有限责任公司德宏供电局 | A kind of anti-condensation dehumidifier |
| CN208540350U (en) * | 2018-05-14 | 2019-02-22 | 北京天润金成科技有限公司 | A kind of temperature and humidity automatic adjustment cabinet |
Non-Patent Citations (3)
| Title |
|---|
| 罗宣国，夏丽建: "《电气设备的防凝露技术研究》", 《可再生能源》 * |
| 赵印明等: "模块化智能温湿度控制器的设计与实现", 《绍兴文理学院学报(自然科学)》 * |
| 韩德军等: "中国先进研究堆01地下室送风系统改造技术方案", 《科技创新导报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112566452A (en) * | 2020-11-19 | 2021-03-26 | 海鹰企业集团有限责任公司 | Anti-condensation circuit of cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110912838B (en) | 2022-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5810164B2 (en) | Smart tap | |
| WO2014050985A1 (en) | System for remotely monitoring household appliance | |
| JP4501923B2 (en) | Home energy management system | |
| ES2647161T3 (en) | Temperature monitoring system for oil immersed energy transformers | |
| US7804255B2 (en) | Dimming system powered by two current sources and having an operation indicator module | |
| CN110912838B (en) | Switch with heating function | |
| KR20100130820A (en) | A electric heating controller and the safety device of the same | |
| CN206237730U (en) | A kind of semiconductor dehumidifier machine with internal heating function | |
| CN204793442U (en) | Multiple socket -outlet with automatically function of cooling down | |
| CN208154728U (en) | Air-conditioning system and its prevent control device on fire | |
| KR101048035B1 (en) | Receptacle controller for cutting off standby power | |
| WO2018196357A1 (en) | Electric cooking device and heating control circuit and control method therefor | |
| CN216776682U (en) | Automatic power-off heat-insulation circuit for stewpot | |
| JP3921121B2 (en) | Energization control device and electric water heater operation control system | |
| KR101516747B1 (en) | Apparatus and method for controlling heat wire | |
| CN215071776U (en) | Power supply circuit and cooking utensil | |
| US11769971B1 (en) | Power plug | |
| CN209949441U (en) | Electric heating blanket | |
| CN218936763U (en) | Pressure regulating device based on humidity and freezer glass door | |
| KR101402695B1 (en) | Electric power management system for elcetric frunace | |
| CN207817088U (en) | Control device is reminded in transformer detection based on magnetic field detection principle | |
| CN207848006U (en) | A kind of energy-saving radiating system of adjustable air volume | |
| CN106801978B (en) | Radiate the guard method of class humidifier, device and radiation class humidifier | |
| CN114442779A (en) | Circuit for low-temperature starting of server and server | |
| JP2004093738A (en) | Image forming apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |