CN208526671U - A kind of anti-dry water-bath - Google Patents

Abstract

The utility model discloses a kind of anti-dry water-baths, including pot body, electric heating constant temperature sink is offered at the top of the pot body, conductive electrode and U-typed heat-generating pipe are separately installed in the electric heating constant temperature sink, the conductive electrode includes positive plate and negative electrode tab, the inner cavity of the pot body is respectively arranged with transformer, electromagnetic relay, water-bath circuit arrangement, the electromagnetic relay includes that the first starting point, the second starting point, first node and second node, the input terminal of the transformer are electrically connected with the zero curve of external power supply and firewire.The anti-dry water-bath guarantees to automatically power off when water level is lower than safety line under the premise of not influencing water-bath normal use, water-bath stops heating by the way that anti-dry system is arranged；And can continue to heat after the water for being higher than safety line is added, matched anti-dry burning device realizes auto switching heater circuit by being associated with heating water surface elevation.

Description

A kind of anti-dry water-bath

Technical field

The utility model relates to water-bath technical field, specially a kind of anti-dry water-bath.

Background technique

Water-bath is mainly used for distilling in laboratory, dry, concentration, and warm stain chemicals or biological products, it is also possible to In heated at constant temperature and other humid tests, be biology, heredity, virus, aquatic products, environmental protection, medicine, health, laboratory, analysis room with And the indispensable tool of education and scientific research, at present on the market most of water-bath use there are risk, as the too long water of water bath time is evaporated, Water-bath drainpipe falls off and faces water-bath situations such as leading to leak to dryout danger, or even causes fire.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of anti-dry water-bath, solves existing water-bath The high problem of danger level.

(2) technical solution

To achieve the above object, the utility model provides the following technical solutions: a kind of anti-dry water-bath, including pot body, Electric heating constant temperature sink is offered at the top of the pot body, and conductive electrode and " U " are separately installed in the electric heating constant temperature sink Type heat-generating pipe, the conductive electrode include positive plate and negative electrode tab, and the inner cavity of the pot body is respectively arranged with transformer, electromagnetism Relay, water-bath circuit arrangement, the electromagnetic relay include the first starting point, the second starting point, first node and the Two nodes, the input terminal of the transformer are electrically connected with the zero curve of external power supply and firewire, the output end of the transformer with The positive plate and negative electrode tab of conductive electrode are electrically connected, and the positive plate is electrically connected with the first starting point, the negative electrode tab and the Two starting point electrical connections, the first node are electrically connected with the input terminal of water-bath circuit arrangement, the water-bath circuit arrangement Output end be electrically connected with the input terminal of U-typed heat-generating pipe, the output end of the U-typed heat-generating pipe is electrically connected with external zero curve, The second node is electrically connected with external firewire.

Preferably, the front of the pot body is equipped with digital display temperature controller.

Preferably, the conductive electrode is located at the top of U-typed heat-generating pipe, the spacing between the positive plate and negative electrode tab It is 0.5-1 centimetres, and in horizontally disposed between positive plate and negative electrode tab.

Preferably, the electric heating constant temperature sink is stainless steel material.

(3) beneficial effect

The utility model provides a kind of anti-dry water-bath.Have it is following the utility model has the advantages that

The anti-dry water-bath is guaranteed under the premise of not influencing water-bath normal use by the way that anti-dry system is arranged It is automatically powered off when water level is lower than safety line, water-bath stops heating；And can continue to heat after the water for being higher than safety line is added, Matched anti-dry burning device realizes auto switching heater circuit by being associated with heating water surface elevation；When the heating in water-bath When water submerged conductive electrode, due to the electric action of water, electromagnetic relay is made to be closed heater circuit, water-bath is in work shape State；Conversely, electrode open circuit, electromagnetic relay disconnects heating electricity when water-bath heating water level drops to conductive electrode or less Road, water-bath is out of service, realizes the automatic control to heater circuit, thus ensure the safe handling of water-bath, water-bath system 220V alternating current is become 6/12/36V low tension by firewire (L) and zero curve (N) the access transformer of system, the electricity reduced through transformer Press the positive plate and negative electrode tab being respectively connected in electric heating constant temperature sink, then the control via conductive electrode access electromagnetic relay Circuit (the first starting point, the second starting point), the on-off of electromagnetic relay is controlled by the on-off of conductive electrode, water-bath system Control and heating equipment are respectively connected to 220V alternating current, and whether water-bath operating circuit is closed is controlled by low voltage electromagnetic relay, when When water level is higher than conductive electrode, electromagnetic relay is closed first node and second node, and water-bath works normally；Conversely, Then water-bath cisco unity malfunction, when water level is lower than the height of conductive electrode, electromagnetic relay is disconnected, water-bath heating equipment It stops working, prevents water-bath dry combustion method, guarantee safety.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is Tthe utility model system circuit diagram；

Fig. 3 is the utility model structure top view；

Fig. 4 is the utility model structure front elevational view.

In figure: 1, pot body；2, electric heating constant temperature sink；3, conductive electrode；31, positive plate；32, negative electrode tab；4, U-typed is generated heat Pipe；5, transformer；6, electromagnetic relay；61, the first starting point；62, the second starting point；63, first node；64, second node； 7, water-bath circuit arrangement；8, digital display temperature controller.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figs 1-4, the utility model provides a kind of technical solution: a kind of anti-dry water-bath, anti-dry by being arranged Burning system guarantees to automatically power off when water level is lower than safety line under the premise of not influencing water-bath normal use, and water-bath stops Only heat；And be added be higher than safety line water after can continue to heat, matched anti-dry burning device by with heating water surface elevation Association is to realize auto switching heater circuit；Including pot body 1, the front of pot body 1 is equipped with digital display temperature controller 8, the top of pot body 1 Electric heating constant temperature sink 2 is offered, electric heating constant temperature sink 2 is stainless steel material, and conductive electricity is separately installed in electric heating constant temperature sink 2 Pole 3 and U-typed heat-generating pipe 4, conductive electrode 3 include positive plate 31 and negative electrode tab 32, and conductive electrode 3 is located at U-typed fever The top of pipe 4, the spacing between positive plate 31 and negative electrode tab 32 is 0.5-1 centimetres, and is between positive plate 31 and negative electrode tab 32 Horizontally disposed, the inner cavity of pot body 1 is respectively arranged with transformer 5, electromagnetic relay 6, water-bath circuit arrangement 7, when in water-bath Heating water submerged conductive electrode 3 when, due to the electric action of water, electromagnetic relay 6 is made to be closed heater circuit, water-bath is in Working condition；Conversely, electrode open circuit, electromagnetic relay 6 breaks when water-bath heating water level drops to 3 or less conductive electrode Heater circuit is opened, water-bath is out of service, realize the automatic control to heater circuit, thus ensure the safe handling of water-bath, Electromagnetic relay 6 includes first the 61, second starting of starting point point 62, first node 63 and a second node 64, transformer 5 it is defeated Enter end to be electrically connected with the zero curve of external power supply and firewire, the output end of transformer 5 and the positive plate 31 of conductive electrode 3 and negative Pole piece 32 is electrically connected, and positive plate 31 is electrically connected with the first starting point 61, and negative electrode tab 32 is electrically connected with the second starting point 62, first segment Point 63 is electrically connected with the input terminal of water-bath circuit arrangement 7, and the output end of water-bath circuit arrangement 7 is defeated with U-typed heat-generating pipe 4 Enter end electrical connection, the output end of U-typed heat-generating pipe 4 is electrically connected with external zero curve, and second node 64 is electrically connected with external firewire, water 220V alternating current is become 6/12/36V low tension by firewire (L) and zero curve (N) the access transformer 5 of bath system, through transformer 5 Reduced voltage is respectively connected to positive plate 31 and negative electrode tab 32 in electric heating constant temperature sink 2, then accesses electricity via conductive electrode 3 (the first starting point 61,62), the on-off of electromagnetic relay 6 is by conductive electrode 3 for the second starting point for the control circuit of magnetic relay 6 On-off control, the control of water-bath system and heating equipment are respectively connected to 220V alternating current, water-bath operating circuit whether be closed by Low voltage electromagnetic relay 6 controls, and when water level is higher than conductive electrode 3, electromagnetic relay 6 makes first node 63 and second node 64 closures, water-bath work normally；Conversely, then water-bath cisco unity malfunction, when water level is lower than the height of conductive electrode 3, Electromagnetic relay 6 disconnects, and water-bath heating equipment stops working, and prevents water-bath dry combustion method, guarantees safety.

In use, due to the electric action of water, making electromagnetism relay when the heating water submerged conductive electrode 3 in water-bath Device 6 is closed heater circuit, and water-bath is in running order；Conversely, when water-bath heating water level drops to 3 or less conductive electrode When, electrode open circuit, electromagnetic relay 6 disconnects heater circuit, and water-bath is out of service, realize the automatic control to heater circuit, To ensure the safe handling of water-bath, the firewire (L) and zero curve (N) of water-bath system access transformer 5 for 220V alternating current Become 6/12/36V low tension, is respectively connected to positive plate 31 in electric heating constant temperature sink 2 and negative through the reduced voltage of transformer 5 Pole piece 32, then via conductive electrode 3 access electromagnetic relay 6 control circuit (first starting point 61, second starting point 62), electricity The on-off of magnetic relay 6 is controlled by the on-off of conductive electrode 3, and the control of water-bath system and heating equipment are respectively connected to the city 220V Electricity, whether water-bath operating circuit is closed is controlled by low voltage electromagnetic relay 6, when water level is higher than conductive electrode 3, electromagnetism relay Device 6 is closed first node 63 and second node 64, and water-bath works normally；Conversely, then water-bath cisco unity malfunction, when When water level is lower than the height of conductive electrode 3, electromagnetic relay 6 is disconnected, and water-bath heating equipment stops working, and prevents water-bath dry It burns, guarantees safety.

In conclusion the anti-dry water-bath, by the way that anti-dry system is arranged, before not influencing water-bath normal use It puts and guarantees to automatically power off when water level is lower than safety line, water-bath stops heating；And be added after the water for being higher than safety line can be after Continuous heating, matched anti-dry burning device realize auto switching heater circuit by being associated with heating water surface elevation.

It should be noted that the electric elements occurred in this article are electrically connected with extraneous main controller and 220V alternating current, and And main controller can play the conventionally known equipment of control, herein, such as first and second or the like pass for computer etc. It is that term is only used to distinguish one entity or operation from another entity or operation, and not necessarily requires or secretly Show that there are any actual relationship or orders between these entities or operation.Moreover, the terms "include", "comprise" or Any other variant thereof is intended to cover non-exclusive inclusion so that include the process, methods of a series of elements, article or Person's equipment not only includes those elements, but also including other elements that are not explicitly listed, or further includes for this mistake Journey, method, article or the intrinsic element of equipment.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of anti-dry water-bath, including pot body (1), it is characterised in that: offer electric heating constant temperature at the top of the pot body (1) Sink (2), the electric heating constant temperature sink (2) is interior to be separately installed with conductive electrode (3) and U-typed heat-generating pipe (4), the conduction Electrode (3) includes positive plate (31) and negative electrode tab (32), and the inner cavity of the pot body (1) is respectively arranged with transformer (5), electromagnetism Relay (6), water-bath circuit arrangement (7), the electromagnetic relay (6) include the first starting point (61), the second starting point (62), first node (63) and second node (64), the input terminal of the transformer (5) and the zero curve and fire of external power supply Line electrical connection, the output end of the transformer (5) are electrically connected with the positive plate (31) of conductive electrode (3) and negative electrode tab (32), The positive plate (31) is electrically connected with the first starting point (61), and the negative electrode tab (32) is electrically connected with the second starting point (62), institute It states first node (63) to be electrically connected with the input terminal of water-bath circuit arrangement (7), the output end of the water-bath circuit arrangement (7) It is electrically connected with the input terminal of U-typed heat-generating pipe (4), the output end of the U-typed heat-generating pipe (4) is electrically connected with external zero curve, institute Second node (64) is stated to be electrically connected with external firewire.

2. a kind of anti-dry water-bath according to claim 1, it is characterised in that: the front of the pot body (1) is equipped with Digital display temperature controller (8).

3. a kind of anti-dry water-bath according to claim 1, it is characterised in that: the conductive electrode (3) is located at U-typed The top of heat-generating pipe (4), the spacing between the positive plate (31) and negative electrode tab (32) is 0.5-1 centimetres, and positive plate (31) In horizontally disposed between negative electrode tab (32).

4. a kind of anti-dry water-bath according to claim 1, it is characterised in that: the electric heating constant temperature sink (2) is not Rust steel material.