CN106601562A

CN106601562A - Thermal relay

Info

Publication number: CN106601562A
Application number: CN201510659341.4A
Authority: CN
Inventors: 田海锋; 邵勋
Original assignee: Schneider Electric Industries SAS
Current assignee: Schneider Electric Industries SAS
Priority date: 2015-10-14
Filing date: 2015-10-14
Publication date: 2017-04-26
Anticipated expiration: 2035-10-14
Also published as: CN106601562B

Abstract

The embodiment of the invention provides a thermal relay which comprises a bimetallic strip, a tripping mechanism and a drifting indicator, wherein the bimetallic strip is arranged for triggering the tripping mechanism to act by deforming when an ultra-heavy current flows by; the tripping mechanism is coupled with the bimetallic strip and is arranged for transferring the deformation of the bimetallic strip to a moving contact so as to cut off the contact between the moving contact and a static contact; the drifting indicator is arranged for detecting the drifting volume of the bimetallic strip and visually indicating the position of the bimetallic strip. The thermal relay according to the embodiment disclosed by the invention can utilize the drifting indicator to conveniently indicate the position of the bimetallic strip.

Description

Thermorelay

Technical field

Embodiment of the present disclosure relates generally to a kind of thermorelay, particularly heat after The drift of electrical equipment is indicated.

Background technology

Thermorelay is widely used in industry, for electrically implementing effective protection.Heat Relay includes thermal element, and the electric current for flowing into thermal element produces heat, has made different expansion systems Several bimetal leafs are deformed upon, and deformation promotes connecting rod action, disconnects control circuit, from And catalyst dead electricity is made, main circuit disconnects, and realizes the mistake of electric component (such as motor) Carry protection.However, the bimetal leaf of thermorelay is with aging or material the deformation of creep And drift about, thus have a strong impact on the tripping characteristic of thermorelay so that thermorelay is not Original function can normally be played.It is desirable to be improved for drifting problem.

The content of the invention

In view of the above problems, one of purpose of embodiment of the disclosure be provide a kind of heat after Electrical equipment, it at least can solve the problem that one or more technical problems present in above-mentioned prior art.

According to an aspect of this disclosure, there is provided a kind of thermorelay, including：Bimetal leaf； The tripping mechanism coupled with the bimetal leaf；Wherein described bimetal leaf is configured in mistake Deform to trigger the tripping mechanism action when high current flows through；The tripping mechanism quilt The deformation according to the bimetal leaf is configured to, the contact between moving contact and static contact is disconnected； And drift indicator, it is configured to detect the drift value of the bimetal leaf and indicates institute State the position of bimetal leaf.

In accordance with an embodiment of the present disclosure, the drift indicator includes being pivotally mounted to institute The drift value for stating thermorelay amplifies bar, and the drift value amplifies bar and is configured to：Described When bimetal leaf drifts about, pivot in response to the drift of the bimetal leaf.

In accordance with an embodiment of the present disclosure, the drift value amplifies bar includes chute, the chute Inside it is suitable to house axle, the axle is from being configured to be moved together in company with the drift of the bimetal leaf Prominent on dynamic part, the drift value amplifies bar and pivots in the presence of the axle.

In accordance with an embodiment of the present disclosure, the tripping mechanism includes：Load the bimetal leaf The first bar, translate in response to the deformation of the bimetal leaf；With first bar substantially The second bar being arranged side by side；The 3rd bar being pivotably connected with second bar, described A part for three bars is attached to first bar so that when the bimorph patches deform by institute The translational motion for stating the first bar is converted into the rotation of the 3rd bar, and the 4th bar is pivotably mounted To thermorelay and arrangement detached with the 3rd bar, and it is configured in response to institute State the rotation of the 3rd bar and rotate, and moving contact trigger assembly, it is configured to described The rotation of the 4th bar and trigger the moving contact action.

In accordance with an embodiment of the present disclosure, second bar be slidably disposed it is described heat after In electrical equipment and it is configured to be floated together with first bar when the bimorph patches are drifted about Move.

In accordance with an embodiment of the present disclosure, the axle is disposed on second bar.

In accordance with an embodiment of the present disclosure, the drift value amplifies bar and also includes indicating double gold The cue mark of the position of category piece.

In accordance with an embodiment of the present disclosure, the thermorelay is provided with for observing the instruction The openning of labelling, the openning is provided with multiple temperature mark, the temperature mark with The predeterminated position that at different temperatures bimetal leaf is located during the thermorelay cold conditions is relative Should.

In accordance with an embodiment of the present disclosure, the thermorelay also includes regulating member, the tune Section part is configured to the position of the bimetal leaf according to the drift indicator indication Putting makes the drive disk assembly of the tripping mechanism move so that the position of the bimetal leaf is recovered To the predeterminated position during thermorelay cold conditions.

In accordance with an embodiment of the present disclosure, the tripping mechanism includes：Load the bimetal leaf The first bar；The second bar being substantially arranged side by side with first bar；Can with second bar The 3rd bar being pivotally connected to a, part for the 3rd bar is attached to first bar, makes Obtain and the motion of first bar is converted into into turning for the 3rd bar when the bimorph patches deform Dynamic, the 4th bar is pivotally mounted to thermorelay and cloth detached with the 3rd bar Put, and be configured in response to the rotation of the 3rd bar and pivot, and moving contact is touched Component is sent out, the rotation of the 4th bar is configured to and is triggered the moving contact action； The regulating member includes：The knob and cam pack are configured to be adapted for knob Rotation and promote the 4th bar to pivot, and then via the 3rd bar and the first bar by institute State bimetal leaf to recover to the precalculated position.

Thermorelay in accordance with an embodiment of the present disclosure, can be easily using drift indicator The position of bimetal leaf is indicated, user can adopt according to the position of the bimetal leaf for showing and arrange Apply and thermorelay is adjusted to appropriate location, with to the drift.

Description of the drawings

Now only by way of example will carry out with reference to appended accompanying drawing embodiment of this disclosure Description, wherein：

Fig. 1 is the bimetal leaf course of work of thermorelay in accordance with an embodiment of the present disclosure Schematic diagram；

Fig. 2 is the schematic diagram of the drift indicator of thermorelay in accordance with an embodiment of the present disclosure；

Fig. 3 is the sectional perspective schematic diagram of thermorelay in accordance with an embodiment of the present disclosure；

Fig. 4 is the local overlooking schematic diagram of thermorelay in accordance with an embodiment of the present disclosure；

Fig. 5 is the local of the drift regulating member of thermorelay in accordance with an embodiment of the present disclosure Schematic diagram；And

Fig. 6 is the schematic diagram of the mark component of the exemplary embodiment according to the disclosure.

Specific embodiment

Now combine accompanying drawing embodiment of this disclosure to be specifically described.It should be noted that It is same numeral may to be used to indicate similar part or functional unit in accompanying drawing. Appended accompanying drawing is intended only to illustrate embodiment of the disclosure.Those skilled in the art can be Without departing from obtaining substitute technology side from the description below on the basis of disclosure spirit and scope Case.

The drifting problem of the bimetal leaf of thermorelay is a difficulty for perplexing thermorelay field Topic.On the one hand, the bimetal leaf of thermorelay can occur the deformation of creep with permanent use. And in order to ensure the susceptiveness of thermorelay, the tripping mechanism of thermorelay is critically designed, Once bimetal leaf occurs the deformation of creep, then the precision of thermorelay is had a strong impact on.For example, In some cases, if bimetal leaf occurs the deformation of creep, when thermorelay works, When bimetal leaf deforms when super-high-current flows through, may cause to be difficult to trigger dropout machine Structure is normally threaded off.It is urgent that how the deformation of creep (or drift) of thermorelay is compensated Cut the technical problem for expecting to solve.On the other hand, in some applications, due to thermorelay Under being operated in different temperature conditionss, the thermorelay for example having is operated in low up to -25 degrees Celsius Under conditions of, and some thermorelays are used at a high temperature of 60 degrees Celsius.Bimetal leaf Very sensitive to temperature, different temperature is by the deformation for causing bimetal leaf different.Therefore, Dispatch from the factory manufacture thermorelay at a temperature of different applications, need to reset thermorelay Original operating state.It is also urgent for how efficiently carrying out setting to the thermal drift of thermorelay Cut the technical problem for expecting to solve.

The inventor of the disclosure for the problems referred to above devise one kind can visually indicate it is double The scheme of the position of sheet metal 10.By the structure of ingehious design, the drift of bimetal leaf is followed Move, and indicate the drift of bimetal leaf, thus, it is possible to easily learn bimetal leaf Position.After the deviation post for obtaining bimetal leaf, user can take corresponding action To drift or correction.

Describe the scheme according to the application in detail below in conjunction with the accompanying drawings.It should be appreciated that attached Figure only schematically show the design of the disclosure, for simplicity, eliminate and this Invention disclosed conceives unrelated feature.Fig. 1 is moved in particular in the housing of thermorelay Schematic diagram in the state of removing；Fig. 2 indicators 30 of drifting about in particular are installed in housing Schematic diagram under state；Fig. 3 indicators 30 of drifting about in particular are installed in thermorelay Sectional perspective schematic diagram under state.

As Figure 1-Figure 5, a kind of thermorelay is provided according to an aspect of this disclosure, Including：Bimetal leaf 10, is configured to be deformed when super-high-current flows through de- to trigger The action of buckle mechanism 20；Tripping mechanism 20, coupling with bimetal leaf 10 and be configured to will be double The displacement transfer of sheet metal 10 to moving contact, to disconnect the contact between moving contact and static contact； And drift indicator 30, it is configured to detect the drift value of bimetal leaf 10 and indicate double The position of sheet metal 10.

It is this area with regard to the structure and operation principle of bimetal leaf 10 and tripping mechanism 20 Known to technical staff, its detailed description is omitted.In the accompanying drawings, only schematically show One bimetal leaf 10 is illustrating the principle of the disclosure.

In the scheme of the application, the thermorelay of the application has been additionally provided in drift and has indicated Device 30, drift indicator 30 is configured to follow the motion of bimetal leaf 10, and Indicate the change in location of bimetal leaf 10.Due to being provided with drift indicator 30, user can Easily judge the working condition of thermorelay.

In the illustrated embodiment, indicator 30 of drifting about includes being pivotally mounted to hot relay The drift value of device amplifies bar 32, and drift value amplifies bar 32 and is configured to：In bimetal leaf 10 When drifting about, drift value amplifies bar 32 and pivots in response to the drift of bimetal leaf 10. Drift value amplifies bar 32 and is configured to follow the translational motion of bimetal leaf 10 to move pivotally, Thus the side-play amount of bimetal leaf 10 on the one hand can effectively be amplified, on the other hand can be with spirit Side-play amount indicate indicator is arranged in the appropriate position of thermorelay housing on ground living, is easy to regard Feel that ground shows.

In the illustrated embodiment, drift value amplifies bar 32 includes chute 34, in chute 34 It is suitable to house axle 242, axle 242 is moved together from the drift being configured in company with bimetal leaf 10 Prominent on dynamic part, drift value amplifies bar 32 and pivots in the presence of axle 242.Using The pushing structure that chute-axle coordinates, the lever that can amplify bar 32 with effectively utilizes drift value is made With, the structure of drift indicator 30 is simplified by leverage, reduce drift indicator 30 Occupied space, in the case where the size of thermorelay is not increased, realizes thermorelay Drift indicate.

In the illustrated embodiment, tripping mechanism 20 includes：The of mounting bimetal leaf 10 One bar 22, translates in response to the deformation of bimetal leaf 10；With the first bar 22 substantially side by side Second bar 24 of arrangement；The 3rd bar 26 being pivotably connected with the second bar 24, the 3rd bar 26 part is attached to the first bar 22 so that when bimorph patches deform by the first bar 22 Translational motion be converted into the rotation of the 3rd bar 26, the 4th bar 28 is pivotally mounted to heat Relay and with the detached arrangement of the 3rd bar 26, and be configured in response to the 3rd bar 26 Rotation and rotate, and moving contact trigger assembly, be configured to turning for the 4th bar 28 Move and trigger moving contact action.

In the illustrated embodiment, the second bar 24 is slidably disposed in thermorelay simultaneously And be configured to be drifted about together with the first bar 22 when bimorph patches are drifted about.In one embodiment In, groove is provided with the housing of thermorelay, the second bar 24 is arranged in groove by floating ground. Second bar 24 is coupled to bimetal leaf, and can move with the movement of bimetal leaf. In the illustrated embodiment, the first bar is connected to bimetal leaf in the side of bimetal leaf, the Two bars are connected to bimetal leaf in the opposite side of bimetal leaf.

In accordance with an embodiment of the present disclosure, axle 242 is disposed on the second bar 24.Thus When two bars are moved, the axle 242 for arranging thereon is together moved.Axle 242 from the second bar highlightedly In extending into chute 34, when axle 242 is moved in company with the drift of bimetal leaf, axle 242 is same When slide in the chute 34, thus promote chute inwall.Drift value amplifies bar 32 and is pivoted Be arranged on thermorelay, in the presence of the power of inwall, drift value amplify bar 32 pivot, Thereby indicate that the change of the drift value of bimetal leaf.

In accordance with an embodiment of the present disclosure, drift value amplifies bar 32 and also includes indicating bimetal leaf 10 Position cue mark.In the illustrated embodiment, drift value amplifies bar 32 away from pivot One end be provided with chute 34, one end contrary with chute 34 is provided with indicate indicator 34, Labelling corresponding with the performance optimum performance of thermorelay is provided with indicate indicator 34.

In accordance with an embodiment of the present disclosure, thermorelay be provided with for expose cue mark so as to In the openning 52 for visually observing cue mark, openning 52 is provided with multiple thermometer scale Know, temperature identifies pre- with what bimetal leaf 10 during thermorelay cold conditions at different temperatures was located If position is corresponding.It should be noted that term " cold conditions " refers to that thermorelay is in ring State when not working at a temperature of border.In other words, bimetal leaf is now under ambient temperature There is no the state of overheating deforming.When thermorelay works, bimetal leaf can deform, Therefore the state is referred to as the hot of thermorelay.

In fig. 6 it is shown that the schematic diagram of indicate indicator 34 and openning 52.At one In embodiment, openning 52 is arranged on the side of the housing being easily observe that, for example can be with Operation button is arranged on one face, to facilitate observation.

As shown in fig. 6, be provided with labelling in indicate indicator 34, labelling and thermorelay The position of bimetal leaf is associated, and wherein labelling is preferably illustrated with the performance of thermorelay most The corresponding position of best performance.It is advance that the labelling is typically (i.e. cold conditions) when thermorelay dispatches from the factory Make.When bimetal leaf deforms (such as because of the deformation of creep of aging generation or because of work The temperature change of making environment and the deformation that produces) when, indicate indicator 34 is slided in openning. In the illustrated embodiment, mark corresponding with temperature, the mark are additionally provided with openning The optimum position of the bimetal leaf at corresponding temperature is shown.By such arrangement, can The thermal drift that bimetal leaf occurs with temperature change is easily identified, can be according to heat The applied environment of relay, selects suitable predeterminated position.

In accordance with an embodiment of the present disclosure, Fig. 1-Fig. 5 is seen, thermorelay also includes regulating member 40, regulating member 40 is configured to the bimetal leaf according to the drift indication of indicator 30 10 position makes the drive disk assembly of tripping mechanism 20 move so that the position of bimetal leaf 10 Recover to predeterminated position during thermorelay cold conditions.By arranging regulating member, can be effective Ground enters to the deformation (or thermal drift) that the deformation of creep of sheet metal or variation of ambient temperature cause Row is effectively compensated for.

Fig. 5 shows that the details of the regulating member 40 of the one embodiment according to the disclosure is illustrated Figure.In the illustrated embodiment, regulating member 40 includes knob 42 and cam pack, rotation Button 42 and cam pack are configured in response to the rotation of knob and promote the 4th bar 28 to pivot, And then recover bimetal leaf 10 to precalculated position via the 3rd bar 26 and the first bar 22.

On the one hand, when using relay under different temperature conditionss, user can be according to finger Show the position adjustments regulating member 40 of part, so as to the bimetal leaf of thermorelay be adjusted to Optimum position.In addition, when the bimetal leaf of thermorelay is due to the generation creep such as aging, Thermorelay can be again reset to by regulating member 40 for optimum position.

In the illustrated embodiment, because regulating member 40 has borrowed the bimetallic of thermorelay The section components of the motion work of piece, thus the textural anomaly of regulating member 40 is simple. In the illustrated embodiment, the first bar, the second bar, the 3rd bar, the 4th bar and moving contact Trigger assembly realizing the hot power-off of bimetal leaf, by means of the first bar, the second bar, the 3rd Bar and the 4th bar, when bimetal leaf drifts about, by regulating member with drift about Contrary side pushes up the 4th bar, the 3rd bar, the second bar, the motion of the first bar, so as to incite somebody to action Bimetal leaf recovers to optimum position.

In the illustrated embodiment, knob is adopted as the regulating member 40 of temperature compensation mechanism With the form of cam pack, it should be appreciated that temperature compensation mechanism can be using other tune Section mode.Under teachings of the present application, one of ordinary skill in the art is readily apparent that other Various realize structure.

By the teaching gone out given in above description and relevant drawings, this public affairs described herein The many modifications opened and other embodiment will be by disclosure those skilled in the relevant art It is appreciated.Therefore, it is understood that embodiment of the present disclosure is not limited to institute Disclosed specific embodiment, and modification and other embodiment are intended to be included in this Within scope of disclosure.In addition, although above description and relevant drawings are in part and/or function Some example combination forms background under example embodiment is described, but should When it is appreciated that the various combination of part and/or function can be provided by alternate embodiment Form is without departing from the scope of the present disclosure.On this point, for example, clearly retouch with more than The different part stated and/or other combining forms of function are also expected in the disclosure Within the scope of.Although being employed herein concrete term, they are only with general and description The implication of property uses and is not intended to be limited.

Claims

1. a kind of thermorelay, including：

Bimetal leaf；

The tripping mechanism coupled with the bimetal leaf；

Wherein described bimetal leaf be configured to be deformed when super-high-current flows through with Trigger the tripping mechanism action；The tripping mechanism is configured to according to the bimetal leaf Deformation, disconnect the contact between moving contact and static contact；And

Drift indicator, it is configured to detect the drift value of the bimetal leaf, and refers to Show the position of the bimetal leaf.

2. thermorelay according to claim 1, wherein, the drift indicator bag The drift value amplification bar for being pivotally mounted to the thermorelay is included,

Wherein described drift value amplifies bar and is configured to when the bimetal leaf drifts about, Pivot in response to the drift of the bimetal leaf.

3. thermorelay according to claim 2, wherein, the drift value amplifies bar Including chute, it is suitable to house axle in the chute, the axle is from being configured in company with described double The drift of sheet metal and it is prominent on the part of movement, the drift value amplifies bar in response to described The drift of axle is moved and pivoted.

4. thermorelay according to claim 2, wherein, the tripping mechanism includes：

The first bar of the bimetal leaf is loaded, is put down in response to the deformation of the bimetal leaf Move；

The second bar being substantially arranged side by side with first bar；

The 3rd bar being pivotably connected with second bar, the part peace of the 3rd bar It is filled to first bar so that when the bimorph patches deform by the translation of first bar Motion is converted into the rotation of the 3rd bar；

4th bar, is pivotally mounted to thermorelay and cloth detached with the 3rd bar Put, and be configured in response to the rotation of the 3rd bar and rotate；And

Moving contact trigger assembly, is configured to the rotation of the 4th bar and triggers described Moving contact action.

5. thermorelay according to claim 4, wherein, second bar can be slided Be arranged in dynamicly in the thermorelay and be configured to when the bimorph patches are drifted about with First bar drifts about together.

6. thermorelay according to claim 5, wherein, the axle is disposed in institute State on the second bar.

7. the thermorelay according to any one of claim 2-6, wherein, the drift Shifting amount amplifies the cue mark of the position that bar includes indicating the bimetal leaf.

8. thermorelay according to claim 7, also includes：

For observing the openning of the cue mark, the openning is provided with multiple temperature Mark, the temperature mark and bimetal leaf during the thermorelay cold conditions at different temperatures The predeterminated position at place is corresponding.

9. the thermorelay according to any one of claim 1-6, also includes：

Regulating member, the regulating member is configured to according to indicated by the drift indicator The position of the bimetal leaf for going out, the drive disk assembly for making the tripping mechanism is moved, so that The bimetal leaf position recover to the thermorelay bring into normal play effect when it is default Position.

10. thermorelay according to claim 9, wherein,

The tripping mechanism includes：

The first bar of the bimetal leaf is loaded, in response to the deformation of the bimetal leaf And translate；

The second bar being substantially arranged side by side with first bar；

The 3rd bar being pivotably connected with second bar, one of the 3rd bar Divide and be attached to first bar so that when the bimorph patches deform by first bar Translational motion is converted into the rotation of the 3rd bar；

4th bar, is pivotally mounted to thermorelay and separates with the 3rd bar Arrangement, and be configured in response to the rotation of the 3rd bar and rotate；And

Moving contact trigger assembly, is configured to the rotation of the 4th bar and triggers The moving contact action；

The regulating member includes knob and cam pack；The knob and cam pack are matched somebody with somebody It is set to the rotation that is adapted for knob and promotes the 4th bar to pivot, and then via described 3rd bar and the first bar recover the bimetal leaf to the precalculated position.