CN207134300U - A kind of electrothermal relay thermal element structure - Google Patents

A kind of electrothermal relay thermal element structure Download PDF

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Publication number
CN207134300U
CN207134300U CN201721127809.6U CN201721127809U CN207134300U CN 207134300 U CN207134300 U CN 207134300U CN 201721127809 U CN201721127809 U CN 201721127809U CN 207134300 U CN207134300 U CN 207134300U
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CN
China
Prior art keywords
electric heating
heating piece
electrothermal relay
bimetal leaf
joint cover
Prior art date
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Active
Application number
CN201721127809.6U
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Chinese (zh)
Inventor
王小英
朱海博
计新华
周良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Tengen Electric Co Ltd
Original Assignee
Zhejiang Tengen Electric Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to CN201721127809.6U priority Critical patent/CN207134300U/en
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Publication of CN207134300U publication Critical patent/CN207134300U/en
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Abstract

The utility model provides a kind of electrothermal relay thermal element structure, it includes two joint covers, in the side of the joint cover, electric heating piece is set, the both ends of the electric heating piece are connected with the joint cover respectively, in the opposite side of the joint cover, bimetal leaf component is set, the electric heating piece is bow-shaped structural, and the bow-shaped structural convex surface facing the bimetal leaf set, in the concave surface of the bow-shaped structural, splitter is set, by the electric heating piece for setting bow-shaped structural, it can effectively be fixed and the distance of bimetallic element, and after splitter is added, both the current carrying capacity of thermal element can have been improved, the temperature rise of electrothermal relay can also greatly be reduced.

Description

A kind of electrothermal relay thermal element structure
Technical field
The utility model belongs to Low Voltage Electrical Apparatus, and in particular to a kind of electrothermal relay thermal element structure.
Background technology
The operation principle of electrothermal relay is that the electric current for entering thermal element by electric current produces heat, makes have the double of the different coefficients of expansion Sheet metal deforms upon, and when deformation reaches certain distance, just promotes connecting rod action, disconnects control circuit, so that contact Device dead electricity, main circuit disconnect, and realize the overload protection of motor.
Electrothermal relay is made up of heater element, bimetal leaf, contact and a set of transmission and adjustment mechanism, how in stable heat The temperature rise of heater element is reduced on the basis of the performance of relay, determines the service life of electrothermal relay.
Utility model content
In order to solve the deficiency of the above, the utility model provides a kind of electrothermal relay thermal element structure.
The utility model provides:A kind of electrothermal relay thermal element structure, it includes two joint covers, in the joint cover Side set electric heating piece, the both ends of the electric heating piece are connected with the joint cover, set in the opposite side of the joint cover respectively Put bimetal leaf component, the electric heating piece is bow-shaped structural, and the bow-shaped structural is set convex surface facing the bimetal leaf, In the concave surface of the bow-shaped structural, splitter is set.
The electric heating piece both ends are contact site, are recessed between two contact sites to side, the both ends difference of the splitter It is bonded with contact site, and splitter covers the concave surface of the electric heating piece.
Described joint cover one end is bent to form connecting end, and the side of the other end is bent to form contact jaw.
The bimetal leaf component includes bimetal leaf and fixed seat, and the fixed seat is fixedly installed on the joint cover On, the bimetal leaf is fixedly installed in the fixed seat.
Described fixed seat one end is bent to form downwards parcel, and the side of the other end is folded upward at forming consolidating for bimetal leaf Determine portion.
The electric heating piece is integrally formed.
The utility model by setting the electric heating piece of bow-shaped structural, its can effectively fix with bimetallic element away from From, and after splitter is added, can both improve the current carrying capacity of thermal element, can also greatly reduce heat after The temperature rise of electrical equipment.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the cooperation schematic diagram of bimetal leaf component and joint cover.
Fig. 3 is the enlarged diagram of joint cover.
Fig. 4 is the structural representation of electric heating piece.
Fig. 5 is the structural representation of fixed seat.
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, the utility model discloses a kind of electrothermal relay thermal element structure, It includes two joint covers, certain gap between two joint covers 1 be present, and two joint covers, after placing, it connects Contravention is in the same side, and so that electric heating piece is preferably fitted on two contact jaws, electric heating piece is set in the side of the joint cover 1 3, the both ends of the electric heating piece 3 are connected with the joint cover 1 respectively, and bimetal leaf component is set in the opposite side of the joint cover 4, the electric heating piece 3 is bow-shaped structural, electric heating piece is integrally formed, and the bow-shaped structural is set convex surface facing the bimetal leaf Put, splitter 2 is set in the concave surface 31 of the bow-shaped structural, using the electric heating piece of bow-shaped structural, when mounted, its convex surface more can Close to the bimetal leaf component, and by fixed electric heating piece both ends, it is ensured that between electric heating piece and bimetal leaf component Distance, and splitter is set between the both ends of electric heating piece, then can greatly reduce temperature on the basis of cost is constant Rise, improve the service life of electrothermal relay.
The electric heating piece both ends are contact site 32, are recessed between two contact sites 32 to side, the both ends of the splitter It is bonded respectively with contact site, the both ends of splitter directly can be welded and fixed with contact site, can also be gone by other means solid Fixed connection, guarantee are brought into close contact between the two, and splitter covers the concave surface 31 of the electric heating piece, joint cover one end bending Connecting end 11 is formed, the side of the other end is bent to form contact jaw.In the design that electric heating piece and joint cover contact, electric heating piece is set Contact site is put, and the contact site of electric heating piece is plane with the face that the contact jaw 12 of joint cover contacts, so both are when fixing It can be brought into close contact.
The bimetal leaf component includes bimetal leaf 51 and fixed seat 52, and the fixed seat 52 is fixedly installed on described In knot tying, the bimetal leaf 51 is fixedly installed in the fixed seat 52, is fixed on by fixed screw in the fixed seat, can To adjust the position of fixed seat, to change the distance between bimetal leaf and electric heating piece.
Described one end of fixed seat 52 is bent to form downwards parcel 522, and the side of the other end is folded upward at forming bimetallic The fixed part 521 of piece, one end welding of bimetal leaf is arranged on fixed part, and parcel is then bonded setting with joint cover.
Embodiment is not construed as to limitation of the present utility model, but any is changed based on what spirit of the present utility model was made Enter, all should be within the scope of protection of the utility model.

Claims (6)

  1. A kind of 1. electrothermal relay thermal element structure, it is characterised in that:It includes two joint covers, in the side of the joint cover Electric heating piece is set, and the both ends of the electric heating piece are connected with the joint cover respectively, and double gold are set in the opposite side of the joint cover Belong to piece component, the electric heating piece be bow-shaped structural, and the bow-shaped structural convex surface facing bimetal leaf setting, described The concave surface of bow-shaped structural sets splitter.
  2. A kind of 2. electrothermal relay thermal element structure according to claim 1, it is characterised in that:The electric heating piece both ends are Contact site, it is recessed to side between two contact sites, the both ends of the splitter are bonded with contact site respectively, and splitter covers The concave surface of the electric heating piece.
  3. A kind of 3. electrothermal relay thermal element structure according to claim 1, it is characterised in that:Described joint cover one end is curved Folding forms connecting end, and the side of the other end is bent to form contact jaw.
  4. A kind of 4. electrothermal relay thermal element structure according to claim 1, it is characterised in that:The bimetal leaf component Including bimetal leaf and fixed seat, the fixed seat is fixedly installed on the joint cover, and the bimetal leaf is fixedly installed on In the fixed seat.
  5. A kind of 5. electrothermal relay thermal element structure according to claim 4, it is characterised in that:Described fixed seat one end to Under be bent to form parcel, the side of the other end is folded upward at being formed the fixed part of bimetal leaf.
  6. A kind of 6. electrothermal relay thermal element structure according to claim 1 or 2, it is characterised in that the electric heating piece one It is body formed.
CN201721127809.6U 2017-09-05 2017-09-05 A kind of electrothermal relay thermal element structure Active CN207134300U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721127809.6U CN207134300U (en) 2017-09-05 2017-09-05 A kind of electrothermal relay thermal element structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721127809.6U CN207134300U (en) 2017-09-05 2017-09-05 A kind of electrothermal relay thermal element structure

Publications (1)

Publication Number Publication Date
CN207134300U true CN207134300U (en) 2018-03-23

Family

ID=61637311

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721127809.6U Active CN207134300U (en) 2017-09-05 2017-09-05 A kind of electrothermal relay thermal element structure

Country Status (1)

Country Link
CN (1) CN207134300U (en)

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