阅读说明：本技术 一种温度保护器 (Temperature protector ) 是由 成明生 陈宏� 于 2018-08-09 设计创作，主要内容包括：本发明涉及温度控制技术领域，尤其是一种温度保护器，包括外壳和温度保护器内芯，所述温度保护器内芯包括感温元件、静触片、动触片、金属支架和绝缘固定座，所述静触片和金属支架注塑在绝缘固定座上并相互绝缘，所述感温元件放置在金属支架上方并与绝缘固定座的安装槽匹配安装，所述动触片的一端与金属支架的一端铆接，所述动触片的另一端设置有动触点，所述静触片上设有静触点，所述动触点与静触点相对设置，所述动触片的中部设置有球形凸点，所述球形凸点的中心与感温元件的中心重合，本发明可以解决现有技术中双金属热保护器体积大、使用寿命短，不方便安装于狭小部分的问题。(The invention relates to the technical field of temperature control, in particular to a temperature protector which comprises a shell and an inner core of the temperature protector, the inner core of the temperature protector comprises a temperature sensing element, a static contact piece, a movable contact piece, a metal bracket and an insulating fixed seat, the static contact and the metal support are injected on the insulating fixed seat and are insulated with each other, the temperature sensing element is arranged above the metal support and is matched and installed with the installation groove of the insulating fixed seat, one end of the movable contact piece is riveted with one end of the metal bracket, the other end of the movable contact piece is provided with a movable contact, the static contact is provided with a static contact, the movable contact is arranged opposite to the static contact, the middle part of the movable contact is provided with a spherical convex point, the center of the spherical salient point is superposed with the center of the temperature sensing element, and the invention can solve the problems that the bimetallic thermal protector in the prior art has large volume, short service life and is inconvenient to be arranged on a narrow part.)

1. A temperature protector, includes shell (1) and temperature protector inner core, its characterized in that: the inner core of the temperature protector comprises a temperature sensing element (2), a static contact piece (3), a movable contact piece (4), a metal bracket (5) and an insulating fixed seat (6), the static contact (3) and the metal bracket (5) are injected on the insulating fixed seat (6) and are insulated with each other, the temperature sensing element (2) is arranged above the metal support (5) and is matched and installed with the installation groove of the insulating fixed seat (6), one end of the movable contact piece (4) is riveted with one end of the metal bracket (5), the other end of the movable contact piece (4) is provided with a movable contact (41), the static contact piece (3) is provided with a static contact (31), the movable contact (41) is arranged opposite to the fixed contact (31), the middle part of the movable contact (4) is provided with a spherical salient point (43), the center of the spherical salient point (43) is superposed with the center of the temperature sensing element (2).

2. A temperature protector according to claim 1, wherein: the temperature sensing element (2) is a circular bimetallic strip.

3. A temperature protector according to claim 1, wherein: the tail parts of the metal bracket (5) and the static contact piece (3) are connected with wires.

4. A temperature protector according to claim 1, wherein: the riveting platform is arranged at one end of the metal support (5), two symmetrically arranged riveting columns (51) are arranged on the riveting platform, a riveting hole (42) is formed in one end of the movable contact spring (4), and the movable contact spring (4) is connected to the riveting columns (51) in a sleeved mode through the riveting hole (42).

Technical Field

The invention relates to the technical field of temperature control, in particular to a temperature protector.

Background

The temperature protection device is physically deformed in the switch according to the temperature change of the working environment, so that some special effects are generated, a series of automatic control elements which conduct or break actions are generated, or the temperature data is provided for the circuit by different principles of working states of the electronic element at different temperatures, so that the circuit can acquire the temperature data. In household electric heating appliances, commonly used temperature protection devices include a bimetallic strip type temperature controller, a magnetic temperature controller, a thermocouple, an electronic temperature controller and the like. With the rapid development of technology, various temperature protection devices have appeared on the market.

With the development of the automobile industry, seat heating pads of automobiles are widely applied to medium-high-grade automobiles, the temperature control of the heating pads is mainly realized by a sensor and a temperature protector, but the existing bimetal thermal protector is large in size and short in service life, and is inconvenient to install in narrow and small positions or to be embedded in products due to the large size.

Disclosure of Invention

The invention aims to provide a temperature protector, which solves the problems that a bimetallic thermal protector in the prior art is large in size, short in service life and inconvenient to mount on a narrow part.

In order to achieve the purpose, the invention provides the following technical scheme: the temperature protector comprises a shell and a temperature protector inner core, wherein the temperature protector inner core comprises a temperature sensing element, a static contact, a movable contact, a metal support and an insulating fixing seat, the static contact and the metal support are molded on the insulating fixing seat in an injection mode and are insulated from each other, the temperature sensing element is placed above the metal support and is installed in a matching mode with a mounting groove of the insulating fixing seat, one end of the movable contact is riveted with one end of the metal support, a movable contact is arranged at the other end of the movable contact, a static contact is arranged on the static contact, the movable contact and the static contact are arranged oppositely, a spherical convex point is arranged in the middle of the movable contact, and the center of the spherical convex point coincides with the center of the.

Preferably, the temperature sensing element is a circular bimetal.

Preferably, the tail parts of the metal bracket and the static contact are connected with leads.

Preferably, a riveting platform is arranged at one end of the metal support, two symmetrically arranged riveting columns are arranged on the riveting platform, a riveting hole is formed in one end of the movable contact piece, and the movable contact piece is connected to the riveting columns in a sleeved mode through the riveting hole.

Compared with the prior art, the invention has the beneficial effects that: although the temperature sensing element is a bimetallic strip, the whole structure is flat, the whole size of the controller is small, and the controller is convenient to install on a narrow part; in addition, the bottom of the temperature sensing element is supported by a metal support and is matched with the mounting groove on the insulating fixing seat for mounting, so that the temperature sensing element is not easy to damage in use, and the service life of the temperature protector is prolonged.

Drawings

FIG. 1 is a structural cross-sectional view of the present invention;

fig. 2 is an exploded view of the inner core of the temperature protector of the present invention.

In the figure: the temperature-sensing device comprises a shell 1, a temperature-sensing element 2, a static contact piece 3, a static contact piece 31, a movable contact piece 4, a movable contact piece 41, a riveting hole 42, a metal support 5, a riveting column 51 and an insulating fixed seat 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a temperature protector comprises a shell 1 and a temperature protector inner core, the shell 1 is a hollow shell with an opening at one end, the temperature protector inner core is installed inside the shell 1, the temperature protector inner core comprises a temperature sensing element 2, a static contact piece 3, a movable contact piece 4, a metal support 5 and an insulating fixed seat 6, the static contact piece 3 and the metal support 5 are injected on the insulating fixed seat 6 and are mutually insulated, the temperature sensing element 2 is placed above the metal support 5 and is installed in a matching way with an installation groove of the insulating fixed seat 6, one end of the movable contact piece 4 is riveted with one end of the metal support 5, the other end of the movable contact piece 4 is provided with a movable contact 41, the static contact 3 is provided with a static contact 31, the movable contact 41 is opposite to the static contact 31, the middle part of the movable contact piece 4 is provided with a spherical salient point 43, the center of the spherical salient point 43 is superposed with, temperature-sensing element 2 is located 5 tops of metal support and matches with the mounting groove on the insulating fixing base 6, has saved installation space, has reduced whole temperature controller's volume, makes things convenient for this temperature controller to install at narrow and small position, and the temperature controller of small volume is difficult to damage when installing on the heating pad.

Preferably, the temperature sensing element 2 is a circular bimetal.

Preferably, the tail parts of the metal bracket 5 and the static contact piece 3 are both connected with a lead wire, and the temperature controller is connected with a circuit through the two lead wires.

Preferably, a riveting platform is arranged at one end of the metal support 5, two symmetrically arranged riveting columns 51 are arranged on the riveting platform, a riveting hole 42 is formed in one end of the movable contact spring 4, the movable contact spring 4 is connected to the riveting columns 51 in a sleeved mode through the riveting hole 42, the movable contact spring is fixedly assembled in a riveting mode, the installation firmness is improved while the movable contact spring is simple and convenient to install, and the riveting strength can be detected directly through visual inspection.

The working principle is as follows: the temperature protector is connected into a circuit, the temperature sensing element 2 can bounce and turn over under the action of the current thermal effect, the center part of the turned temperature sensing element 2 is propped against the spherical salient point 43 in the middle of the movable contact spring 4, the movable contact spring 4 can be lifted, and the movable contact 41 at one end of the movable contact spring 4 is separated from the fixed contact 31, so that the circuit loop is cut off; when the heat on the temperature sensing element 2 is dissipated, the temperature sensing element 2 returns to the normal state, the movable contact 41 and the fixed contact 31 return to contact, and the circuit is restored to be connected.

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.