CN213815972U

CN213815972U - Miniature sealed temperature-sensitive thermal protector

Info

Publication number: CN213815972U
Application number: CN202022671938.XU
Authority: CN
Inventors: 顾旭; 蔡瑞; 王宝国
Original assignee: Jiangsu Changsheng Electrical Appliance Huaian Co ltd
Current assignee: Jiangsu Changsheng Electrical Appliance Huaian Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-27
Anticipated expiration: 2030-11-18

Abstract

The utility model discloses a miniature sealed temperature sensitive type thermal protector, including protective housing, protective housing's the left and right sides bottom fixed mounting has the installation gasket, protective housing's preceding terminal surface bottom fixed mounting has sealed glue, sealed inside movable mounting of gluing has electrically conductive inserted sheet, the preformed groove has been seted up to electrically conductive inserted sheet's inside, the equal fixed mounting in the left and right sides of terminal surface has the stationary contact before protective housing's the bottom. This miniature sealed temperature sensitive type thermal protector, the inside design that has the hole of mounting pad, can utilize the bolt to carry out fixed mounting to the protector, the stability when having improved thermal protector installation, sealed glue can increase the inside leakproofness of thermal protector, thereby avoided its inside part oxidation to reduce the life's of thermal protector problem, the power can be connected to the electric conduction inserted sheet, inside opening can increase this thermal protector's rate of heat conduction, increase its sensitivity of being heated.

Description

Miniature sealed temperature-sensitive thermal protector

Technical Field

The utility model relates to a hot protector technical field specifically is a miniature sealed temperature sensitive type hot protector.

Background

The thermal protector is formed by combining two different alloys, generates heat after current flows, and because the two different alloys have different thermal expansion coefficients, the alloys tend to bend in one direction, and the contacts leave, so that the electricity is cut off. The bending speed is proportional to the magnitude of the current passing through it. Thus protecting the electric equipment, the thermal protector can be called as a temperature control switch or a temperature controller or a thermal protection switch or a temperature switch.

However, the existing thermal protector has a poor sealing effect, so that the interior of the thermal protector is easy to oxidize, the service life of the thermal protector is influenced, and the general thermal protector has insufficient sensitivity, which is not beneficial to improving the thermal protection effect of the electrical appliance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a miniature sealed temperature sensitive type thermal protector to solve current thermal protector's among the above-mentioned background art sealed effect not good, cause its inside easy oxidation, influence thermal protector's life, general thermal protector sensitivity is not enough moreover, is unfavorable for improving the problem of electrical apparatus thermal protection effect.

In order to achieve the above object, the utility model provides a following technical scheme: a miniature sealed temperature-sensitive thermal protector comprises a protective shell, wherein mounting gaskets are fixedly mounted at the bottom ends of the left side and the right side of the protective shell, sealant is fixedly mounted at the bottom end of the front end face of the protective shell, a conductive insertion piece is movably mounted in the sealant, a reserved groove is formed in the conductive insertion piece, stationary contacts are fixedly mounted at the left side and the right side of the front end face of the bottom end of the protective shell, a stationary contact piece is fixedly mounted at the rear end face of the conductive insertion piece, an upper metal element is fixedly mounted at the outer side of the rear end face of the stationary contact piece, a lower metal element is fixedly mounted in the middle of the rear end face of the bottom end of the protective shell, a second rebound wire is movably connected at the middle section of the top end of the upper metal element, a movable contact piece is fixedly connected at the top end of the second rebound wire, and an insulating gasket is fixedly mounted at the top end of the inner part of the protective shell, the bottom end of the front end face of the movable contact piece is fixedly provided with a first rebound line, the bottom end of the first rebound line is fixedly provided with a fixed base, and the middle section of the bottom end of the rear end face of the upper metal element is fixedly provided with a connecting point.

Preferably, the number that the mounting pad set up is two, and two mounting pads are connected with protective housing as an organic whole respectively, protective housing is adhesive connection with sealed glue.

Preferably, the quantity that electrically conductive inserted sheet set up is two, and electrically conductive inserted sheet establishes for the cover with sealed glue and is connected, the preformed groove runs through each other with electrically conductive inserted sheet.

Preferably, the number of stationary contacts sets up is two, stationary contact and stationary contact are the laminating and are connected, the stationary contact is established with last metal component for the cover and is connected.

Preferably, the upper metal element is electrically connected to the lower metal element, and the upper metal element is designed in an arc shape.

Preferably, the movable contact piece is integrally connected with the first rebound line and the second rebound line, and the length of the first rebound line is greater than that of the second rebound line.

Compared with the prior art, the beneficial effects of the utility model are that: the miniature sealed temperature-sensitive thermal protector has the advantages that the inside of the mounting gasket is provided with the holes, the protector can be fixedly mounted by utilizing bolts, the stability of the thermal protector during mounting is improved, the sealing glue can increase the sealing property inside the thermal protector, the problem that the service life of the thermal protector is shortened due to the oxidation of internal parts is avoided, the conductive insert can be connected with a power supply, the heat conduction rate of the thermal protector can be increased by an internal opening, the sensitivity of the thermal protector when being heated is increased, the stationary contact is connected with the stationary contact, the thermal protector can be well attached under the condition of not being heated, the normal conductive effect of the thermal protector is improved, multiple guarantees can be realized after being heated, the connected parts can be fused, the thermal sensitivity is further improved, the upper metal element can rebound automatically after being heated, the power supply can be disconnected, and the safety of an electric appliance can be improved, the movable contact piece can be connected with the upper metal element in use, so that the connection stability of the movable contact piece and the upper metal element is further improved, and the normal transmission of electric quantity is facilitated.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a top view of the cross-sectional structure of the present invention;

FIG. 3 is a side cross-sectional view of the present invention;

fig. 4 is the overall connection structure diagram of the movable contact spring of the present invention.

In the figure: 1. a protective housing; 2. installing a gasket; 3. sealing glue; 4. a conductive insert; 5. reserving a groove; 6. a stationary contact; 7. a static contact piece; 8. an upper metal element; 9. a lower metal element; 10. a movable contact spring; 11. an insulating spacer; 12. a first rebound wire; 13. a second rebound wire; 14. a fixed base; 15. and connecting points.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a miniature sealed temperature-sensitive thermal protector comprises a protective shell 1, mounting gaskets 2 are fixedly mounted at the bottom ends of the left side and the right side of the protective shell 1, sealant 3 is fixedly mounted at the bottom end of the front end face of the protective shell 1, a conductive insert 4 is movably mounted in the sealant 3, a reserved groove 5 is formed in the conductive insert 4, stationary contacts 6 are fixedly mounted at the left side and the right side of the front end face of the bottom end of the protective shell 1, a stationary contact piece 7 is fixedly mounted at the rear end face of the conductive insert 4, an upper metal element 8 is fixedly mounted at the outer side of the rear end face of the stationary contact piece 7, a lower metal element 9 is fixedly mounted in the middle of the rear end face of the bottom end of the protective shell 1, a second rebound wire 13 is movably connected at the middle section of the top end of the upper metal element 8, a movable contact piece 10 is fixedly connected at the top end of the second rebound wire 13, an insulating gasket 11 is fixedly mounted at the top end in the protective shell 1, the bottom end of the front end face of the movable contact piece 10 is fixedly provided with a first rebound line 12, the bottom end of the first rebound line 12 is fixedly provided with a fixed base 14, and the middle section of the bottom end of the rear end face of the upper metal element 8 is fixedly provided with a connection point 15.

The utility model discloses in: the number of the mounting gaskets 2 is two, the two mounting gaskets 2 are respectively connected with the protective shell 1 in an integrated manner, and the protective shell 1 is connected with the sealant 3 in an adhesive manner; the installation gasket 2 is internally provided with a hole, the protector can be fixedly installed by utilizing a bolt, the stability of the thermal protector during installation is improved, the sealant 3 can increase the sealing performance inside the thermal protector, and the problem that the inner parts of the thermal protector are oxidized to reduce the service life of the thermal protector is solved.

The utility model discloses in: the number of the conductive insertion pieces 4 is two, the conductive insertion pieces 4 are connected with the sealant 3 in a sleeved mode, and the reserved grooves 5 are mutually penetrated through the conductive insertion pieces 4; the conductive insert 4 can be connected to a power supply, and the opening inside can increase the heat conduction rate of the thermal protector and increase the sensitivity of the thermal protector to heat.

The utility model discloses in: the number of the static contacts 6 is two, the static contacts 6 are in fit connection with the static contact pieces 7, and the static contact pieces 7 are in sleeved connection with the upper metal element 8; stationary contact 6 and stationary contact 7 interconnect, under the condition of not being heated, laminating that both can be fine increases the normal electrically conductive effect of hot protector, can multiple guarantee after being heated, and the part of connecting can fuse mutually, and the convenience further improves the thermal sensitivity.

The utility model discloses in: the upper metal element 8 is electrically connected with the lower metal element 9, and the upper metal element 8 is designed in an arc shape; the upper metal element 8 can rebound automatically after being heated, which is beneficial to disconnecting the power supply and improving the safety of the electrical appliance.

The utility model discloses in: the movable contact piece 10 is integrally connected with a first rebound wire 12 and a second rebound wire 13, and the length of the first rebound wire 12 is greater than that of the second rebound wire 13; the movable contact spring 10 can be connected with the upper metal element 8 in use, which further improves the connection stability of the movable contact spring and the upper metal element, and is convenient for normal transmission of electric quantity.

The working principle is as follows: before the thermal protector is used, the mounting gasket 2 of the thermal protector is required to be mounted in a proper electric appliance by utilizing a bolt, then, an electric wire is connected to the outer side of the conductive inserting sheet 4, current is conducted to the inside of the protective shell 1 through the conductive inserting sheet 4, then, the current can be conducted to the lower metal element 9 through the upper metal element 8, and is further mutually transmitted with the movable contact 10 at the upper end, so that the loop is completed, the current is normally transmitted, if the current is overlarge, the temperature of the inner metal element rises, the upper metal element 8 can rebound to be separated from the lower metal element 9, the internal current break of the thermal protector is caused, and the thermal protection effect of the electric appliance is achieved.

In summary, the following steps: the miniature sealed temperature-sensitive thermal protector is characterized in that a mounting gasket 2 is internally provided with a hole, the protector can be fixedly mounted by utilizing a bolt, the stability of the thermal protector during mounting is improved, a sealant 3 can increase the sealing property inside the thermal protector, the problem that the service life of the thermal protector is shortened due to the oxidation of internal parts is solved, a conductive insert 4 can be connected with a power supply, an internal opening can increase the heat conduction rate of the thermal protector and increase the sensitivity of the thermal protector when being heated, a static contact 6 and a static contact 7 are connected with each other, the two can be well attached under the condition of not being heated, the normal conductive effect of the thermal protector is improved, multiple guarantees can be realized after the thermal protector is heated, the connected parts can be mutually fused, the thermal sensitivity is further improved conveniently, an upper metal element 8 can rebound after being heated, the power supply can be disconnected, and the safety of an electric appliance can be improved, the movable contact spring 10 can be connected with the upper metal element 8 in use, which further improves the connection stability of the movable contact spring and the upper metal element, and is convenient for normal transmission of electric quantity.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A miniature sealed temperature-sensitive thermal protector comprises a protective shell (1), and is characterized in that: the protective casing is characterized in that mounting gaskets (2) are fixedly mounted at the bottom ends of the left side and the right side of the protective casing (1), a sealant (3) is fixedly mounted at the bottom end of the front end face of the protective casing (1), a conductive insertion sheet (4) is movably mounted in the sealant (3), a reserved groove (5) is formed in the conductive insertion sheet (4), stationary contacts (6) are fixedly mounted at the left side and the right side of the front end face of the bottom end of the protective casing (1), a stationary contact sheet (7) is fixedly mounted at the rear end face of the conductive insertion sheet (4), an upper metal element (8) is fixedly mounted at the outer side of the rear end face of the stationary contact sheet (7), a lower metal element (9) is fixedly mounted in the middle of the rear end face of the bottom end of the protective casing (1), a second rebound line (13) is movably connected at the middle section of the top end of the upper metal element (8), and a movable contact sheet (10) is fixedly connected at the top end of the second rebound line (13), an insulating gasket (11) is fixedly mounted at the top end inside the protective shell (1), a first rebound line (12) is fixedly mounted at the bottom end of the front end face of the movable contact spring (10), a fixed base (14) is fixedly mounted at the bottom end of the first rebound line (12), and a connecting point (15) is fixedly mounted at the middle section of the bottom end of the rear end face of the upper metal element (8).

2. A miniature sealed temperature sensitive thermal protector according to claim 1, wherein: the number that installation gasket (2) set up is two, and two installation gaskets (2) are connected with protective housing (1) as an organic whole respectively, protective housing (1) is adhesive connection with sealed glue (3).

3. A miniature sealed temperature sensitive thermal protector according to claim 1, wherein: the quantity that electrically conductive inserted sheet (4) set up is two, and electrically conductive inserted sheet (4) establish for the cover with sealed glue (3) and be connected, preformed groove (5) and electrically conductive inserted sheet (4) run through each other.

4. A miniature sealed temperature sensitive thermal protector according to claim 1, wherein: the quantity that stationary contact (6) set up is two, stationary contact (6) are connected for the laminating with stationary contact (7), stationary contact (7) are established for the cover with last metal component (8) and are connected.

5. A miniature sealed temperature sensitive thermal protector according to claim 1, wherein: the upper metal element (8) is electrically connected with the lower metal element (9), and the upper metal element (8) is designed in an arc shape.

6. A miniature sealed temperature sensitive thermal protector according to claim 1, wherein: the movable contact piece (10) is integrally connected with the first rebound line (12) and the second rebound line (13), and the length of the first rebound line (12) is larger than that of the second rebound line (13).