CN217606750U

CN217606750U - Bimetallic strip type thermal time delay relay

Info

Publication number: CN217606750U
Application number: CN202123295541.6U
Authority: CN
Inventors: 张鹏军; 陈家东; 朱雪伟
Original assignee: Lanzhou Flight Control Co Ltd
Current assignee: Lanzhou Flight Control Co Ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-10-18
Anticipated expiration: 2031-12-24

Abstract

The utility model provides a bimetallic strip formula heat time delay relay, the relay includes the support, from last to setting up first bimetallic strip subassembly and the second bimetallic strip subassembly on the support down and set up the slab subassembly on the support simultaneously, wherein, the relay is still including the adjusting part that is used for adjusting relay working range, the adjusting part with second bimetallic strip subassembly with the slab subassembly is connected, first bimetallic strip subassembly include first bimetallic strip the second bimetallic strip subassembly includes the second bimetallic strip, first bimetallic strip with the invar side of second bimetallic strip all sets up at the upside. The utility model provides a bimetallic strip formula heat time delay relay chooses for use two bimetallic strips, sets up the coil on one of them bimetallic strip, and the bimetallic strip bending of being heated when the electric current passes through the coil has realized the time delay disconnection function of relay through the electric current that control coil flowed.

Description

Bimetallic strip type thermal time delay relay

Technical Field

The utility model belongs to the technical field of the relay, concretely relates to hot time delay relay of bimetallic strip formula.

Background

The bimetal relay is widely applied to various electronic products due to better mechanical reliability. At present, the existing bimetallic relay is used for thermal overload protection and temperature protection of an electric appliance, has no time delay function, and the bimetallic strip is influenced by the change of temperature, can generate bending deformation in different directions, and cannot guarantee to keep the time delay performance of the bimetallic relay under different temperature environments.

Therefore, a relay with a delay function is required to solve the above-described problems.

Disclosure of Invention

An object of the utility model is to solve the above-mentioned problem, provide a wide bimetallic strip formula thermal delay relay of working range, utilize being heated of bimetallic strip to take place the physical characteristics of deformation, through adjusting normal atmospheric temperature, low temperature, high temperature adjusting screw for the relay delays under broad operating temperature.

In order to achieve the above object, the present invention provides a bimetal thermal time delay relay, which comprises a support, a first bimetal piece assembly and a second bimetal piece assembly arranged on the support from top to bottom, and a plate piece assembly arranged on the support at the same time,

the relay further comprises a regulating assembly used for regulating the working range of the relay, the regulating assembly is connected with the second metal sheet assembly and the sheet plate assembly, the first bimetal sheet assembly comprises a first bimetal sheet, the second bimetal sheet assembly comprises a second bimetal sheet, and the invar sides of the first bimetal sheet and the second bimetal sheet are both arranged on the upper side.

The utility model provides a bimetallic strip formula thermal delay relay still has such characteristic, first bimetallic strip and second bimetallic strip are the same bimetallic strip, first bimetallic strip with second bimetallic strip relative position is parallel.

The utility model provides a bimetallic strip formula thermal delay relay still has such a characteristic, first bimetallic strip subassembly still includes the contact that sets up in first bimetallic strip one end and the coil that is used for controlling first bimetallic strip heating temperature that the cover is established on first bimetallic strip; the second bimetal assembly further comprises a contact disposed on the second bimetal, the contact mating with the contact.

The utility model provides a bimetallic strip formula thermal delay relay still has such characteristic, the bimetallic strip of second with adjusting part connects.

The utility model provides a bimetallic strip formula thermal delay relay still has such characteristic, the slab subassembly includes first slab and the second slab with leg joint, first slab with the second slab sets up respectively first sheet metal subassembly with second sheet metal subassembly both sides.

The utility model provides a bimetallic strip formula thermal delay relay still has such characteristic, adjusting part is including setting up normal atmospheric temperature adjusting screw, high temperature adjusting screw and the low temperature adjusting screw of setting on the second bimetallic strip piece, normal atmospheric temperature adjusting screw be used for to pressure is applyed to first bimetallic strip piece subassembly, high temperature adjusting screw is arranged in restricting the deformation distance of the second bimetallic strip in the second bimetallic strip piece subassembly, low temperature adjusting screw be used for to pressure is applyed to the second bimetallic strip piece subassembly.

The utility model provides a bimetallic strip formula thermal delay relay still has such characteristic, first slab first sheetmetal the second sheetmetal with all be equipped with the through-hole on the second slab, the support passes the through-hole will first slab first sheetmetal the second sheetmetal with the second slab is fixed.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a bimetallic strip formula thermal delay relay chooses for use two bimetallic strips, sets up the coil on one of them bimetallic strip, and the bimetallic strip is heated the bending when the electric current passes through the coil, has realized the time delay disconnection function of relay through the electric current that control coil flows.

The utility model provides a pair of bimetallic strip formula thermal time delay relay adjusts normal atmospheric temperature adjusting screw control relay off-time during normal atmospheric temperature at the certain limit, adjusts low temperature adjusting screw control relay off-time during low temperature at the certain limit, adjusts high temperature adjusting screw control relay off-time during high temperature at the certain limit, through with normal atmospheric temperature, low temperature, high temperature relay off-time regulation at the same scope, provides the operating temperature scope of broad for the relay.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1: the embodiment of the utility model provides a structural diagram of a bimetallic strip type thermal time delay relay;

FIG. 2: the embodiment of the utility model provides a left side view of bimetallic strip formula thermal delay relay;

FIG. 3: the embodiment of the utility model provides a bimetallic strip type thermal time delay relay circuit diagram;

FIG. 4: the utility model provides a timing diagram of a bimetallic strip type thermal delay relay,

wherein, 1, a bracket; 2. a first bimetal sheet; 3. a second bimetallic strip; 4. a shaft sleeve; 5. adjusting the screw at normal temperature; 6. a contact; 7. a contact point; 8. a coil; 9. a second sheet; 10. a bushing; 11. a first lug plate; 12. a first screw; 13. a second lug plate; 14. a nut; 15. a second screw; 16. a low temperature adjustment screw; 17. a high temperature set screw; 18. a first plate.

Detailed Description

In order to make the technical means, creation features, achievement purpose and efficacy of the present invention easy to understand, the following embodiments are combined with the accompanying drawings to specifically explain the thermal delay relay provided by the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for the convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.

The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1 to 4, there is provided a bimetal thermal delay relay, characterized in that the relay comprises a bracket 1, a first bimetal block and a second bimetal block which are arranged on the bracket 1 from top to bottom, and a plate block which is arranged on the bracket 1 at the same time,

the relay further comprises a regulating assembly for regulating the working range of the relay, the regulating assembly is connected with the second metal sheet assembly and the sheet plate assembly, the first bimetal sheet assembly comprises a first bimetal sheet 2, the second bimetal sheet assembly comprises a second bimetal sheet 3, and the invar sides of the first bimetal sheet 2 and the second bimetal sheet 3 are both arranged on the upper side.

In some embodiments, the first bimetal strip 2 and the second bimetal strip 3 are the same bimetal strip, and the first bimetal strip 2 and the second bimetal strip 3 are parallel in relative position. Both the first and the second bimetallic strip 2, 3 are hot bimetallic strips.

In some embodiments, the first bimetal component further comprises a contact 7 disposed at one end of the first bimetal 2 and a coil 8 sleeved on the first bimetal 2 for controlling the heating temperature of the first bimetal; the second bimetal assembly further comprises a contact 6 arranged on the second bimetal strip 3, said contact 6 being mated with said contact 7. The first tab 11 connects one end of the coil 8 and one end of the first bimetal 2 at the same time, and the second tab 13 connects the other end of the coil 8. During operation, electricity is applied through the first and

second tabs

11 and 13. The first lug plate 11, the first bimetal 2, the bracket 1, the second bimetal 3 and the second lug plate 13 are fixedly connected through a first screw 12 and a nut 14. The second lug 13 is provided with a bush 10.

In some embodiments, the second bimetallic strip 3 is connected to the conditioning assembly.

In some embodiments, the plate assembly comprises a first plate 18 and a second plate 9 connected to the bracket 1, and the first plate 18 and the second plate 9 are respectively arranged on two sides of the first metal plate assembly and the second metal plate assembly.

In some embodiments, the adjusting assembly comprises a normal temperature adjusting screw 5 disposed on the second bimetal block, a high temperature adjusting screw 17 disposed on the second plate 9, and a low temperature adjusting screw 16, wherein the normal temperature adjusting screw 5 is used for applying pressure to the first bimetal block, the high temperature adjusting screw 17 is used for limiting the deformation distance of the first bimetal 2 in the first bimetal block, and the low temperature adjusting screw 16 is used for applying pressure to the second bimetal block. The shaft sleeve 4 and the contact 6 are provided with threads and fixed on the second bimetallic strip 3 through a normal temperature adjusting screw.

In some embodiments, through holes are formed in the first plate 18, the first metal sheet 2, the second metal sheet 3 and the second plate 9, and the bracket 1 passes through the through holes to fix the first plate 18, the first metal sheet 2, the second metal sheet 3 and the second plate 9. The first screw 12 is used for fixing and mounting the first plate 18, the first metal sheet 2, the second metal sheet 3 and the second plate 9.

The workflow of the above embodiment is as follows:

when the current flows through the coil 8, the first bimetal piece 2 is heated and bent, after a period of time delay, the contact 6 is separated from the contact 7, the relay is disconnected, and the delay function is realized.

The input current of the coil is kept unchanged when the coil works at normal temperature, high temperature and low temperature. When the double-metal relay works at a normal temperature, the contact 6 is in contact with the contact 7, current is input to the first lug plate 11 and the second lug plate 13, when the current passes through the coil 8, the first double-metal plate 2 is heated and bent upwards, the normal-temperature adjusting screw 5 is adjusted, the pressure applied to the first double-metal plate 2 is controlled, so that the time delay disconnection time of the double-metal relay is controlled, when the pressure between the contact 6 and the contact 7 is increased, the time delay disconnection time of the relay is prolonged, and when the pressure is reduced, the time delay disconnection time of the relay is shortened.

When the high-temperature working is carried out, at the moment, the first bimetal piece 2 and the second bimetal piece 3 are both bent upwards by the external environment, the normal-temperature adjusting screw is kept still, when the first wiring piece 11 and the second wiring piece 13 input currents, the currents pass through the coil 8, the first bimetal piece 2 is heated and continues to be bent upwards, the high-temperature adjusting screw 17 is adjusted, the deformation distance of the second bimetal piece 3 is limited, so that the delay disconnection time of the bimetal relay is controlled, the relay disconnection time is prolonged when the deformation distance of the second bimetal piece 3 is increased, and the relay disconnection time is shortened when the deformation distance is reduced.

When the low-temperature working is performed, the first bimetal piece 2 and the second bimetal piece 3 are both bent downwards by the external environment at the moment, the normal-temperature and high-temperature adjusting screws are kept still, the first wiring piece 11 and the second wiring piece 13 input current, the current passes through the coil 8, the first bimetal piece 2 is heated and continuously bent upwards, the low-temperature adjusting screw 16 is adjusted, the pressure applied to the second bimetal piece 3 is controlled, the relay disconnection time is prolonged when the pressure applied to the second bimetal piece 3 is increased, and the relay disconnection time is shortened when the pressure applied is reduced.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A bimetallic strip type thermal time delay relay is characterized in that the relay comprises a bracket, a first bimetallic strip component and a second bimetallic strip component which are arranged on the bracket from top to bottom, and a strip component which is arranged on the bracket at the same time,

the relay further comprises a regulating assembly used for regulating the working range of the relay, the regulating assembly is connected with the second bimetallic strip assembly and the sheet assembly, the first bimetallic strip assembly comprises a first bimetallic strip, the second bimetallic strip assembly comprises a second bimetallic strip, and the invar sides of the first bimetallic strip and the second bimetallic strip are arranged on the upper side.

2. The bimetal thermal delay relay of claim 1, wherein the first bimetal and the second bimetal are the same bimetal, and the first bimetal and the second bimetal are in parallel in relative position.

3. The bimetal thermal delay relay of claim 1, wherein the first bimetal member further comprises a contact disposed at one end of the first bimetal and a coil sleeved on the first bimetal for controlling the heating temperature of the first bimetal; the second bimetal assembly further comprises a contact arranged on the second bimetal piece, and the contact is matched with the contact.

4. The bi-metallic strip thermal delay relay of claim 1 wherein the second bi-metallic strip is connected to the adjustment assembly.

5. The bimetal thermal delay relay of claim 1, wherein the plate assembly comprises a first plate and a second plate connected to a bracket, the first plate and the second plate being disposed at both sides of the first bimetal assembly and the second bimetal assembly, respectively.

6. The bimetal thermal delay relay of claim 5, wherein the adjusting assembly comprises a normal temperature adjusting screw disposed on the second bimetal assembly, a high temperature adjusting screw disposed on the second plate and a low temperature adjusting screw, the normal temperature adjusting screw is used for applying pressure to the first bimetal assembly, the high temperature adjusting screw is used for limiting a deformation distance of the second bimetal in the second bimetal assembly, and the low temperature adjusting screw is used for applying pressure to the second bimetal assembly.

7. The bimetal thermal delay relay of claim 5, wherein the first plate, the first bimetal, the second bimetal and the second plate are provided with through holes, and the bracket passes through the through holes to fix the first plate, the first bimetal, the second bimetal and the second plate.