CN217847818U

CN217847818U - Large-current kick type temperature controller

Info

Publication number: CN217847818U
Application number: CN202221887494.6U
Authority: CN
Inventors: 陈决顺; 梁耀雄
Original assignee: Foshan Shunde Chengji Electronic Technology Co ltd
Current assignee: Foshan Shunde Chengji Electronic Technology Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2022-11-18
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a heavy current kick formula temperature controller. The first terminal and the second terminal are arranged below the shell, and the second terminal is electrically connected with the elastic contact piece; the sealing cover can cover and press the bimetallic disc; the ejector rod penetrates through the central through hole, and two ends of the ejector rod can be respectively abutted against the bimetallic disc and the elastic contact piece; when the bimetal disc is heated and deformed to generate convex jump, the mandril moves towards the elastic contact piece, so that the elastic contact piece is abutted against or separated from the first terminal; the top of closing cap is provided with multistage step tensile structure. The utility model discloses simple structure can realize the open control by temperature change protection of heavy current through a small amount of components, sets up multistage step tensile structure through the top at the closing cap, can effectively strengthen the intensity of closing cap, does not need thickening the closing cap, also can bear the great deformation force of thick bimetal video disc that heavy current operating mode used, the whole size of reducible sudden jump formula temperature controller, reduction in production cost.

Description

Large-current kick type temperature controller

Technical Field

The utility model relates to a temperature controller technical field, in particular to heavy current kick formula temperature controller.

Background

The bimetal kick type temperature control switch is a switch which drives a contact to be closed and opened by a bimetal sheet or a disc sheet through external temperature change, and is a particularly important safety product in the electrical industry. The current passing capacity of common household electrical appliances is generally 15A. However, in some high-power electronic products, the circulation current of the circuit is large, and the temperature controller needs to consider the use requirement of a large-current working condition.

To the temperature controller of disk type, the heavy current temperature controller structure that corresponds is complicated, and all is proportional thickening increase bimetal dish, elastic contact, reset spring and electrode terminal, leads to the casing great, and is used for the closing cap that closes bimetal dish also need the thickening to enlarge, just can bear the deformability of bimetal dish. The temperature controller has complex structure, large volume and larger sealing structure, is difficult to be applied in the use environment with small volume, and is not beneficial to reducing the production cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a heavy current kick-type temperature controller.

The utility model discloses an embodiment solves the technical scheme that its technical problem adopted and is: a high-current kick type temperature controller comprises: the sealing cover, the shell, the ejector rod, the first terminal, the elastic contact piece, the second terminal and the bimetal disc;

the first terminal and the second terminal are arranged below the shell, and the second terminal is electrically connected with the elastic contact piece; the bimetal disc is arranged above the shell, and the sealing cover can cover and press the bimetal disc;

the shell is vertically provided with a central through hole, the ejector rod penetrates through the central through hole, and two ends of the ejector rod can be respectively abutted against the bimetallic disc and the elastic contact piece; when the bimetal disc is heated and deformed to generate convex jump, the ejector rod moves towards the elastic contact piece, so that the elastic contact piece is abutted to or separated from the first terminal; and a multi-stage step stretching structure is arranged at the top of the sealing cover.

Optionally, the sealing cover is provided with a circular base, the casing is provided with a circular mounting seat, and the circular base can be sleeved on the outer side of the circular mounting seat.

Optionally, a pressing base station is convexly arranged above the round base station, and an annular convex ring is arranged above the round mounting base; the bimetal disc is arranged between the pressing base platform and the annular convex ring.

Optionally, a plurality of reinforcing steps arranged in a hierarchical manner are arranged on the press-fit base station.

Optionally, the second terminal is provided with an inclined block inclined upwards; the elastic contact piece comprises an extending contact part, an inclined part and a connecting part; the connecting part is locked with the second terminal, and the inclined part is attached to the inclined block; one end of the extending contact part can be abutted with the first terminal, and the ejector rod can be abutted with the extending contact part.

Optionally, a contact convex part is arranged on the extending contact part, and the ejector rod can be abutted against the contact convex part.

Optionally, the first terminal is fixed to the housing by a rivet, and the second terminal and the elastic contact piece are fixed to the housing by a rivet; the first terminal and the second terminal are arranged on two opposite sides of the ejector rod.

Optionally, the first terminal and the elastic contact piece are both provided with silver contacts; the first terminal and the elastic contact piece are in electric connection through the butting of the silver contacts.

Optionally, the silver contact includes a contact circular truncated cone, and the thickness of the contact circular truncated cone is greater than or equal to 1mm.

The utility model has the advantages that: when the temperature controller is used, the ejector rod moves by utilizing the sudden jump generated by the thermal deformation of the bimetallic disc, so that the elastic contact piece is driven to displace, the elastic contact piece is abutted or separated with the first terminal, and the first terminal is connected or disconnected with the second terminal. The utility model discloses simple structure only can realize the open control by temperature change protection of heavy current through a small amount of components such as ejector pin, first terminal, elastic contact piece, second terminal and bimetal video disc to, a closing cap for the lid closes the bimetal video disc sets up multistage step tensile structure through the top at the closing cap, can effectively strengthen the intensity of closing cap, under the condition that need not thicken the closing cap, bear the great deformability of the thick bimetal video disc that heavy current operating mode used, the whole size of reducible sudden jump formula temperature controller, reduction in production cost.

In order to make the aforementioned and other objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a large-current kick type temperature controller according to an embodiment of the present invention;

FIG. 2 is an exploded view of the large current kick type thermostat shown in FIG. 1;

fig. 3 is a sectional view of the large current kick type thermostat of fig. 1.

Description of the main element symbols:

10. sealing the cover; 11. a round base platform; 12. pressing a base platform; 13. reinforcing the step; 20. a housing; 21. a central through opening; 22. a circular mounting seat; 23. an annular convex ring; 30. a top rod; 40. a first terminal; 50. an elastic contact piece; 51. an extended contact portion; 52. an inclined portion; 53. a connecting portion; 54. a contact projection; 60. a second terminal; 61. an inclined block; 70. a bimetallic disc; 80. riveting; 90. a silver contact; 91. contacts the circular truncated cone.

Detailed Description

This section will describe in detail the embodiments of the present invention, the preferred embodiments of which are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can visually and vividly understand each technical feature and the whole technical solution of the present invention, but it cannot be understood as a limitation to the scope of the present invention.

In the description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly defined, the terms "set," "installed," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or may be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either internal to the two elements or in an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Examples

Referring to fig. 1 to fig. 3, the utility model provides a large current kick temperature controller, include: the cover 10, the housing 20, the plunger 30, the first terminal 40, the elastic contact piece 50, the second terminal 60 and the bimetal disc 70;

the first terminal 40 and the second terminal 60 are installed below the housing 20, and the second terminal 60 is electrically connected with the elastic contact piece 50; the bimetallic disc 70 is arranged above the shell 20, and the cover 10 can cover and press the bimetallic disc 70;

the shell 20 is vertically provided with a central through hole 21, the ejector rod 30 penetrates through the central through hole 21, and two ends of the ejector rod 30 can be respectively abutted against the bimetallic disc 70 and the elastic contact piece 50; when the bimetal disc 70 is deformed by heat to generate a bump, the push rod 30 moves towards the elastic contact piece 50, so that the elastic contact piece 50 is abutted to or separated from the first terminal 40; the top of the closure 10 is provided with a multi-step stretching structure.

In the utility model, when the temperature controller is in use, the plunger 30 is moved by the sudden jump of the bimetallic disc 70 caused by thermal deformation, thereby driving the elastic contact piece 50 to displace, so that the elastic contact piece 50 is abutted or separated from the first terminal 40, and the first terminal 40 is switched on or switched off from the second terminal 60. The utility model discloses simple structure, only through ejector pin 30, first terminal 40, elastic contact piece 50, a small amount of components such as second terminal 60 and bimetal video disc 70 can realize the open control by temperature change protection of heavy current, and, a closing cap 10 for covering bimetal video disc 70, through setting up multistage step tensile structure at the top of closing cap 10, can effectively strengthen the intensity of closing cap 10, under the condition that need not thicken closing cap 10, bear the great deformability of thicker bimetal video disc 70 that the heavy current operating mode used, the whole size of reducible kick-type temperature controller, and the production cost is reduced.

In the present embodiment, the cover 10 is provided with a circular base 11, the housing 20 is provided with a circular mounting seat 22, and the circular base 11 can be sleeved outside the circular mounting seat 22. The round base 11 can improve the physical strength of the cover 10; on the other hand, the circular base 11 is mounted on the circular mounting seat 22, and also serves as a guide, so that the cover 10 can be mounted in alignment with the housing 20 to press the bimetal disc 70 in alignment.

Specifically, a pressing base station 12 is convexly arranged above the round base station 11, and an annular convex ring 23 is arranged above the round mounting base 22; the bimetal disc 70 is installed between the pressing base 12 and the annular flange 23. The annular convex ring 23 only provides a small-area abutting surface with the bimetal disc 70, and when the bimetal disc 70 is heated to deform and protrude, the top of the annular convex ring 23 can be quickly switched from the upper convex bowl shape or the straight state to the lower convex bowl shape. The annular flange 23 can cooperate with the pressing base 12 to clamp the bimetal disc 70 without interfering with the snap deformation of the bimetal disc 70.

Furthermore, a plurality of reinforcing steps 13 are arranged on the pressing base 12 in a hierarchical manner. A plurality of reinforcing steps 13 arranged in a hierarchical manner are further punched above the pressing base station 12, so that the physical strength of the sealing cover 10 can be effectively improved under the condition that the sealing cover 10 is not thickened, the larger deformation force of the thicker bimetallic disc 70 used under the large-current working condition is borne, the overall size of the kick-type temperature controller can be reduced, and the production cost is reduced.

In the present embodiment, the second terminal 60 is provided with an inclined block 61 inclined upward; the elastic contact piece 50 includes an extended contact portion 51, an inclined portion 52, and a connecting portion 53; the connecting part 53 is locked with the second terminal 60, and the inclined part 52 is jointed with the inclined block 61; one end of the extended contact portion 51 may abut against the first terminal 40, and the plunger 30 may abut against the extended contact portion 51. When the bimetal disc 70 is heated to generate a jump, the push rod 30 presses the extension contact part 51 downwards, thereby separating from the first terminal 40; at this time, the inclined portion 52 is pressed against the inclined block 61, the elastic contact piece 50 generates an elastic force to return to the original state, the ambient temperature is lowered, and after the bimetal disc 70 is returned, the extended contact portion 51 is returned by the elastic force to be connected with the first terminal 40 again. Compare in prior art, set up reset spring on ejector pin 30 or elastic contact 50, this embodiment provides the trend that resets for elastic contact 50 through slope piece 61 and the limiting displacement of slope 52, reduces reset spring's use, has simplified product structure, can effectively reduce the temperature controller volume.

Further, the extended contact portion 51 is provided with a contact convex portion 54, and the jack 30 can abut against the contact convex portion 54. The contact convex part 54 is an arc-shaped convex structure and is in point contact with the push rod 30, in the process of pressing and deforming the extension contact part 51, the contact point of the push rod 30 and the contact convex part 54 moves on an arc-shaped surface, and the forced deformation contact position of the push rod 30 and the extension contact part 51 is not easy to deviate and wear.

In the present embodiment, the first terminal 40 is fixed to the housing 20 by the rivet 80, and the second terminal 60 and the elastic contact piece 50 are fixed to the housing 20 by the rivet 80; the first terminal 40 and the second terminal 60 are disposed on opposite sides of the post 30. The first terminal 40, the second terminal 60 and the elastic contact piece 50 are fixed in the housing 20 by two rivets 80.

In the present embodiment, the first terminal 40 and the elastic contact piece 50 are both mounted with silver contacts 90; the first terminal 40 and the elastic contact piece 50 are electrically connected by the abutment of the silver contact 90. The silver contact 90 made of silver material has good conductive performance, and can ensure the stability of the transmission of large current at the first terminal 40 and the second terminal 60.

Further, silver contact 90 is including contacting round platform 91, in order to make silver contact 90's current capacity satisfy the user demand of heavy current operating mode, the thickness more than or equal to 1mm that contacts round platform 91.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications and substitutions are included in the scope defined by the claims of the present application.

Claims

1. A large-current kick type temperature controller is characterized by comprising: the circuit board comprises a sealing cover (10), a shell (20), a push rod (30), a first terminal (40), an elastic contact piece (50), a second terminal (60) and a bimetallic disc (70);

the first terminal (40) and the second terminal (60) are arranged below the shell (20), and the elastic contact piece (50) is electrically connected with the second terminal (60); the bimetal disc (70) is arranged above the shell (20), and the cover (10) can cover and press the bimetal disc (70);

the shell (20) is vertically provided with a central through hole (21), the ejector rod (30) penetrates through the central through hole (21), and two ends of the ejector rod (30) can be respectively abutted against the bimetal disc (70) and the elastic contact piece (50); when the bimetal disc (70) is deformed by heating to generate convex jump, the ejector rod (30) moves towards the elastic contact piece (50) to enable the elastic contact piece (50) to be abutted against or separated from the first terminal (40); the top of the sealing cover (10) is provided with a multi-step stretching structure.

2. A high current kick thermostat according to claim 1, wherein: the sealing cover (10) is provided with a round base platform (11), the shell (20) is provided with a round mounting seat (22), and the round base platform (11) can be sleeved on the outer side of the round mounting seat (22).

3. A large current kick temperature controller according to claim 2, wherein: a pressing base station (12) is convexly arranged above the round base station (11), and an annular convex ring (23) is arranged above the round mounting seat (22); the bimetallic disc (70) is arranged between the pressing base platform (12) and the annular convex ring (23).

4. A high current kick thermostat according to claim 3, wherein: and a plurality of reinforcing steps (13) which are arranged in a hierarchical manner are arranged on the pressing base station (12).

5. A large current kick temperature controller according to claim 1, wherein: the second terminal (60) is provided with an inclined block (61) inclined upwards; the elastic contact piece (50) comprises an extending contact part (51), an inclined part (52) and a connecting part (53); the connecting part (53) is locked with the second terminal (60), and the inclined part (52) is attached to the inclined block (61); one end of the extending contact part (51) can be abutted with the first terminal (40), and the ejector rod (30) can be abutted with the extending contact part (51).

6. A large current kick temperature controller according to claim 5, wherein: the extending contact part (51) is provided with a contact convex part (54), and the ejector rod (30) can be abutted against the contact convex part (54).

7. A large current kick temperature controller according to claim 5, wherein: the first terminal (40) is fixed to the shell (20) through a rivet (80), and the second terminal (60) and the elastic contact piece (50) are fixed to the shell (20) through the rivet (80); the first terminal (40) and the second terminal (60) are arranged on two opposite sides of the ejector rod (30).

8. A large current kick temperature controller according to claim 1, wherein: the first terminal (40) and the elastic contact piece (50) are both provided with silver contacts (90); the first terminal (40) and the elastic contact piece (50) are electrically connected through the abutting joint of the silver contact (90).

9. A high current trip temperature controller according to claim 8, wherein: the silver contact (90) comprises a contact round platform (91), and the thickness of the contact round platform (91) is larger than or equal to 1mm.